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14469Adhikari, G.: Design and Initial Performance of the COSINE-100 Experiment
http://adsabs.harvard.edu/abs/2017arXiv171005299A
COSINE is a dark matter search experiment based on an array of low
background NaI(Tl) crystals located at the Yangyang underground
laboratory. The assembly of COSINE-100, the Phase-I version of the
experiment, was completed in the summer of 2016 and the detector is
currently collecting physics quality data aimed at reproducing the
DAMA/LIBRA experiment that reported an annual modulation signal. Stable
operation has been achieved and will continue for at least two years.
Here, we describe the design of COSINE-100, including the shielding
arrangement, the configuration of the NaI(Tl) crystal detection
elements, the veto systems, and the associated operational systems, and
we show the current performance of the experiment.Ariwahjoedi, S.: (2+1) Regge Calculus: Discrete Curvatures, Bianchi Identity, and Gauss-Codazzi Equation
http://adsabs.harvard.edu/abs/2017arXiv170908373A
The first results presented in our article are the clear definitions of
both intrinsic and extrinsic discrete curvatures in terms of holonomy
and plane-angle representation, a clear relation with their deficit
angles, and their clear geometrical interpretations in the first order
discrete geometry. The second results are the discrete version of
Bianchi identity and Gauss-Codazzi equation, together with their
geometrical interpretations. It turns out that the discrete Bianchi
identity and Gauss-Codazzi equation, at least in 3-dimension, could be
derived from the dihedral angle formula of a tetrahedron, while the
dihedral angle relation itself is the spherical law of cosine in
disguise. Furthermore, the continuous infinitesimal curvature 2-form,
the standard Bianchi identity, and Gauss-Codazzi equation could be
recovered in the continuum limit.Aminah, N. S.: Methyl-3,4-dihydroxybenzoate and 9-10-dihydrophenanthrene-2,4,7-triol two phenolic compounds from Dioscorea alata L. and their antioxidant activity
http://adsabs.harvard.edu/abs/2017AIPC.1888b0050A
Two phenolic compounds namely: methyl-3,4-dihydroxybenzoate (1) and
9,10-dihydrophenanthrene-2,4,7-triol (2) had been isolated for the first
time from the tuber of Dioscorea alata L. The extraction of two
compounds were done by maceration method using methanol as solvent,
followed by partition with n-hexane and ethyl acetate. The ethyl acetate
extract was separated and purified using various chromatographic
techniques yielded pure compounds. The structure of isolated compounds
were determined based on spectroscopic data, including UV-Vis, 1D and 2D
NMR spectra. Compounds (1), (2) and ascorbic acid as a comparator were
evaluated for their antioxidant properties against <SUP>DPPH, showing
their IC<SUB>50</SUB> were 9,41 ± 0,08; 23,52 ± 0,05; and
10,95 ± 0,08 ppm, respectively.</SUP>Lalus, H. F.: Meromorphic Solutions of Modified Quintic Complex Ginzburg-Landau Equation
http://adsabs.harvard.edu/abs/2017arXiv170801309L
In this paper, the meromorphic solution of the modified quintic complex
GinzburgLandau equation (CGLE) is analysed. We found the general
explicit solutions to the equation in three different forms, yield
simply periodic, doubly periodic and rational solution. Firstly, this
equation was transformed to nonlinear ordinary differential equation and
then we solved it by using a powerful algorithm proposed by Demina and
Kudryashov, based on the existence of Laurent series. Finally, we have
the meromorphic solution of the equation, and to verify these solutions,
we showed a special case which we constructed from the general form.Yaqin, A.: Comment on "Self-gravitating spherically symmetric solutions in scalar-torsion theories"
http://adsabs.harvard.edu/abs/2017PhRvD..96b8501Y
We find a crucial miscalculation in [G. Kofinas, E. Papantonopoulos, and
E. N. Saridakis, Self-gravitating spherically symmetric solutions in
scalar-torsion theories, Phys. Rev. D 91, 104034 (2015),
10.1103/PhysRevD.91.104034] which leads to the wrong master equation.
This follows that there is no wormhole-like solution for hyperbolic
scalar potential and the solution at large distances differs from that
of [G. Kofinas, E. Papantonopoulos, and E. N. Saridakis,
Self-gravitating spherically symmetric solutions in scalar-torsion
theories, Phys. Rev. D 91, 104034 (2015), 10.1103/PhysRevD.91.104034].Wungu, T. D. K.: Density Functional Theory (DFT) Study of Molecularly Imprinted Polymer (MIP) Methacrylic Acid (MAA) with D-Glucose
http://adsabs.harvard.edu/abs/2017MS%26E..214a2004W
In order to find an alternative biosensor material which enables to
detect the glucose level, therefore in this study, the interaction
between Methacrylic Acid (MAA) based Molecularly Imprinted Polymer (MIP)
with D-Glucose is investigated using the Density Functional Theory
(DFT). The aim of this study is to determine whether a molecule of the
MAA can be functioned as a bio-sensing of glucose. In this calculation,
the Gaussian 09 with B3LYP and 631+G(d) basis sets is used to calculate
all electronic properties. It is found that the interaction between a
molecule of MAA and a molecule of D-Glucose was observed through the
shortened distance between the two molecules. The binding energy of
MAA/D-glucose and the Mulliken population analysis are investigated for
checking possible interaction. From analysis, the MAA based MIP can be
used as a bio-sensing material.Anugrah Putri Namari, N.: First Principle Calculation : Investigation on interaction of Pt/Graphene as Catalyst
http://adsabs.harvard.edu/abs/2017JPhCS.877a2045A
The increasing in energy needs and the lack of non-renewable energy
sources becomes a challenge for the human being to be able to use
renewable energy sources. One of the devices to process renewable energy
is Polymer Electrolyte Membrane Fuel Cell (PEMFC) . PEMFC use hydrogen
and Oxygen as an energy sources . The most important reaction in fuel
cell is Oxidation and reduction process. Therefore, a catalyst is needed
to help the OR process. Study of catalyst shows that the most effective
fuel cell for now is Platinum. Many fuel cell have use platinum as the
catalyst. However, Platinum is a rare and expensive element. Therefore,
to reduce the cost of fuel cell fabrication, we need to increase the
activity of platinum. In this research, we use graphene as a support
material. Then, we will study about the interaction of platinum on
graphene and analyze its morphological change and electronic
properties.The research conduct using Density Functional Theory (DFT).
The calculation result shows that Pt/graphene can break H<SUB>2</SUB>
into H<SUP>+</SUP> and the binding between Pt cluster is stronger than
binding with the substrate.Akbar, F.: Weak quasielastic electroproduction of hyperons with polarization observables
http://adsabs.harvard.edu/abs/2017EPJA...53..154A
With the availability of high luminosity electron beams at the
accelerators, there is now the possibility of studying weak quasielastic
hyperon production off the proton, i.e. e^-p → ν_e
Y(Y=Λ,Σ^0) , which will enable the determination of the
nucleon-hyperon vector and axial-vector transition form factors at high
Q^2 in the strangeness sector and provide test of the Cabibbo model,
G-invariance, CVC, PCAC hypotheses and SU(3) symmetry. In this work, we
have studied the total cross section, differential cross section as well
as the longitudinal and perpendicular components of polarization of the
final hyperons ( Λ and Σ^0 produced in these reactions) and
presented numerical results for these observables and their sensitivity
to the transition form factors.Akbar, F: Neutrino-nucleus cross sections in $^{12}C$ and $^{40}Ar$ with KDAR neutrinos
http://adsabs.harvard.edu/abs/2017arXiv170800321A
High intensity monoenergetic muon neutrinos of energy 236 MeV from kaon
decay at rest (KDAR) at the medium energy proton accelerator facilities
like J-PARC and Fermilab are proposed to be used for making precision
measurements of neutrino-nucleus cross sections in $^{12}C$ and
$^{40}Ar$ and perform neutrino oscillation experiments in $\nu_\mu \to
\nu_\mu$ and $\nu_\mu \to \nu_e$ modes. In view of these developments,
we study the theoretical uncertainties arising due to the nuclear medium
effects in the neutrino-nucleus cross sections as well as in the angular
and energy distributions of the charged leptons produced in the charged
current (CC) induced reactions by $\nu_\mu$ and $\nu_e$ in $^{12}C$ and
$^{40}Ar$ in the energy region of $E_{\nu_e(\nu_\mu)}<$ 300 MeV. The
calculations have been done in a microscopic model using the local
density approximation which takes into account the nuclear effects due
to the Fermi motion, binding energy and long range correlations. The
results are compared with the other calculations available in the
literature.Atmajati, E. D.: A simple landslide model at a laboratory scale
http://adsabs.harvard.edu/abs/2017AIPC.1857f0002A
Landslide, which is one of the natural disasters that occurs frequently,
often causes very adverse effects. Landslide early warning systems,
which are installed at prone areas, measure physical parameters closely
related to landslides and give warning signals indicating that
landslides would occur. To determine the critical values of the measured
physical parameters or test the early warning system itself, a
laboratory scale model of a rotational landslide was developed. This
rotational landslide model had a size of 250×45×40
cm<SUP>3</SUP> and was equipped with soil moisture sensors,
accelerometers, and automated measurement system. The soil moisture
sensors were used to determine the water content in soil sample. The
accelerometers were employed to detect movements in x-, y-, and
z-direction. Therefore, the flow and rotational landslides were expected
to be modeled and characterized. The developed landslide model could be
used to evaluate the effects of slope, soil type, and water seepage on
the incidence of landslides. The present experiment showed that the
model can show the occurrence of landslides. The presence of water
seepage made the slope crack. As the time went by, the crack became
bigger. After evaluating the obtained characteristics, the occurred
landslide was the flow type. This landslide occurred when the soil
sample was in a saturated condition with water. The soil movements in
x-, y-, and z-direction were also observed. Further experiments should
be performed to realize the rotational landslide.Akbar, F. T.: Black holes will break up solitons and white holes may destroy them
http://adsabs.harvard.edu/abs/2017PhLA..381.1879A
We consider a quantum analogue of black holes and white holes using
Bose-Einstein condensates. The model is described by the nonlinear
Schrödinger equation with a 'stream flow' potential, that induces a
spatial translation to standing waves. We then mainly consider the
dynamics of dark solitons in a black hole or white hole flow analogue
and their interactions with the event horizon. A reduced equation
describing the position of the dark solitons was obtained using
variational method. Through numerical computations and comparisons with
the analytical approximation we show that solitons can pass through
black hole horizons even though they will break up into several solitons
after the collision. In the interaction with a white hole horizon, we
show that solitons either pass through the horizon or will be destroyed
by it.Kamaruddin: Synthesis of Polyvinylpyrrolidone (PVP)-Green Tea Extract Composite Nanostructures using Electrohydrodynamic Spraying Technique
http://adsabs.harvard.edu/abs/2017MS%26E..202a2043K
Green Tea Extract (GTE) as an active substance has successfully loaded
to PVP nanostructures using electrohydrodynamic spraying technique. The
precursor solution was the mixture of ethanolic polyvinylpyrrolidone
(PVP) with a molecular weight of 1,300 kg/mol and ethanolic GTE
solutions at a weight concentration of 4 wt.% and 2 wt.%, respectively,
and it was estimated that the entanglement number was 2. The
electrospraying was conducted at the voltage of 15 kV, the flow rate of
10 µL/min., and the distance between the collector and the tip of
the nozzle of 10 cm. The SEM images showed that the PVP/GTE
nanostructures had a combination of agglomerated beads (less spherical
particles) and nanofibers. This occurred because if the PVP
concentration is low, the PVP/GTE composite has weak core structures
that cause the shell to be easily agglomerated each other. The
intermolecular interaction between PVP and GTE in the PVP/GTE
nanostructures occurred as confirmed by the peak at 3396
cm<SUP>-1</SUP>, which is the carboxyl group, proving that the PVP/GTE
nanostructures contained water, alcohols, and phenols. The peak at 1040
cm<SUP>-1</SUP>, which is the stretching of C-O group in amino acid,
gave another proof to the intermolecular interaction.Zulfi, A.: Synthesis of High-Impact Polystyrene Fibers using Electrospinning
http://adsabs.harvard.edu/abs/2017MS%26E..202a2010Z
Synthesis of fibers from waste high-impact polystyrene (HIPS) have been
successfully done using electrospinning method. The HIPS solutions were
made with a single solvent (DMF or d-limonene), a mixed solvent
(d-limonene/DMF), and with the addition of acetone to the previously
stated solvents. The effects of HIPS concentration, a mix of solvent,
and the addition of acetone on the morphology and the diameter of fibers
were observed. The morphological change from particles to fibers took
place along with the increasing concentration of HIPS in d-limonene. For
other precursor solutions using DMF solvent, bead free fibers could be
obtained even at low levels. The average diameter of fibers increased
along with the increase of the HIPS concentration in DMF. At the
concentrations of 15, 20, 25, 30, and 35 wt.%, the average diameters
were 1.85, 2.09, 2.66, 3.59, and 7.38 μm, respectively. For the
precursor solutions with the combination of different solvents
(HIPS/DMF), the existence of beads was influenced by the ratio of
solvents. When the ratio of d-limonene/DMF was 75:25, the obtained
beaded fibers had a relatively large amount of beads. At the ratio of
50:50, fewer beads were found. Bead-free fibers were finally reached
when the ratio of HIPS / DMF was 25:75. The addition of acetone reduced
the diameter of the produced fibers. However, too much addition of
acetone caused the fibers to be wet. Additionally, the diameter became
larger if the addition of acetone surpassed a certain amount of volume.Rusydi, F.: Erratum: "Dipole Strength Calculation Based on Two-Level System Approximation to Study Q/B-Band Intensity Ratio of ZnTBP in Solvent" [J. Phys. Soc. Jpn. 86, 044706 (2017)]
http://adsabs.harvard.edu/abs/2017JPSJ...86e8001R
Not AvailableSakti, M. F. A. R.: First-order perturbative approach to Q-balls with massive gauge field
http://adsabs.harvard.edu/abs/2017JPhCS.856a2009S
In this paper, we examine the properties of massive U(1) gauged Q-balls.
For finding the field solutions, we use first-order perturbative
approach where the coupling constant q is used as pertubation parameter.
We also compare our result to the massless case to see the effects of
the gauge field mass. Finally, we obtain the mass-charge relation of the
Q-balls.Hikmawan, G.: Power function inflation potential analysis for cosmological model with Gauss-Bonnet term
http://adsabs.harvard.edu/abs/2017JPhCS.856a2006H
Inflation is still an interesting topic in the study of our universe. An
interesting inflation scenario named Gauss-Bonnet inflation proposed
without inflation potential has been shown unstable. In this work, we
consider the general power function inflation potential, V(ϕ) =
mϕ<SUP>n</SUP> in the model, then the solution is analyzed
according to the inflation scenario. Using the stability condition,
inflation potential with m positive and 0 ≤ n < 5 give proper
solution for the inflation scenario.Dwiputra, D.: Nonlinear dynamics of DNA bubble induced by site specific DNA-protein interaction
http://adsabs.harvard.edu/abs/2017JPhCS.856a2005D
We propose a dynamical model describing interactions between DNA and a
specific binding protein involving long-range transmission of biological
information. The model couples the hydrogen bonds between the one
connecting DNA and protein side chain and the one connecting DNA base
pairs since they account for site specificity of the binding. We adopt
Morse potentials with coupling terms to construct model of coupled
hydrogen bonds. We show that the model gives rise to a breather soliton
formation, corresponding to the DNA bubbles, which propagates through
DNA chain as the carrier of genetic information. We investigate various
kinds of possible coupling dynamics and suggest the model realism in
depicting the renaturation or hybridization processes.Siti Aminah, N.: A simulation of surface plasmon resonance-based tapered fiber and sensing
http://adsabs.harvard.edu/abs/2017JPhCS.853a2005S
This paper presents the fabrication and simulation of tapered optical
fiber. To characterize the properties of these tapered optical fiber
sensors, sugar solutions ranging from 0 to 20 in weight percent were
utilized. The measured reflection spectra obtained from this SPR sensor
shows the observation of a dip originated from the light absorption by
the generated surface plasmon wave. The dip reflectance shifts with the
increase in the refractive index. A simulation of the experiment was
made using OptiFDTD. The simulation and the experiment showed a similar
result. The result suggests that a compact sensor based on this
structure may be useful for refractive index sensors.Kumalasari, R.: Location and Pressures Change Prediction of Bromo Volcano Magma Chamber Using Inversion Scheme
http://adsabs.harvard.edu/abs/2017JPhCS.846a2002K
Bromo volcano is one of active volcanoes in Indonesia. It has erupted at
least 50 times since 1775 and has been monitored by Global Positioning
System (GPS) since 1989. We applied the Levenberg-Marquardt inversion
scheme to estimate the physical parameters contributing to the surface
deformation. Physical parameters obtained by the inversion scheme such
as magma chamber location and volume change are useful in monitoring and
predicting the activity of Bromo volcano. From our calculation it is
revealed that the depth of the magma chamber d = 6307.6 m, radius of
magma chamber α = 1098.6 m and pressure change ΔP ≈ 1.0
MPa.Rusydi, F.: Dipole Strength Calculation Based on Two-Level System Approximation to Study Q/B-Band Intensity Ratio of ZnTBP in Solvent
http://adsabs.harvard.edu/abs/2017JPSJ...86d4706R
We study the Q/B-band dipole strength of zinc tetrabenzoporphyrin
(ZnTBP) using density functional theory (DFT) in various solvents. The
solvents are modeled using the polarized continuum model (PCM). The
dipole strength calculations are approached by a two-level system, where
the Q-band is described by the HOMO → LUMO electronic transition
and the B-band by the HOMO-1 → LUMO electronic transition. We
compare the results with the experimental data of the Q/B-band intensity
ratio. We also perform time-dependent DFT coupled with PCM to calculate
the Q/B-band oscillator strength ratio of ZnTBP. The results of both
methods show a general trend with respect to the experimental Q/B-band
intensity ratio in solvents, except for the calculation in the water
solvent. Even so, the approximation is a good starting point for
studying the UV-vis spectrum based on DFT study alone.Rahayuningsih, M.: Nest Records of Wreathed Hornbill (Rhyticeros undulates) in Gunung Gentong Station, Mount Ungaran Central Java
http://adsabs.harvard.edu/abs/2017JPhCS.824a2061R
The remaining forest of Mount Ungaran, Central Javais the suitable
habitat of Wreathed Hornbill (Rhyticeros undulatus), especially for a
nesting site. The objective of the study was to analyse the nest record
and characteristics of habitat around the nest, especially in Gunung
Gentong station. The research was conducted from 2010-2016 using
exploration method. The methodhabitat profile of the vertical structure
tree canopy was taken by plot size 60 × 20 m. Measurements were
taken to the standing of vegetation, canopy closure, the direction of
the canopy, height canopy, a former branch of the vegetation height, and
stem diameter. The Result of the study showed that Gunung Gentong is one
of the research station that we have been recorded for nesting site on
2010-2015. Atotal of the nest record on Gunung Genting station was 10
nests. Estimate the elevation of nest location between 939-1240 AMSL.
The tree species that used for nesting was Syzygium glabatrum, Syzygium
antisepticum, Ceratoxylon formosum, and Ficus spAminudin, A.: Solution Concentration and Flow Rate of Fe3+-modified Porphyrin (Red Blood Model) on Giant Magnetoresistance (GMR) Sensor Efficiency
http://adsabs.harvard.edu/abs/2017MS%26E..180a2137A
Red blood has been of great interest for scientists since it relates to
human’ and living creature’s life sustainability. One of the
important compounds in red blood is porphyrin. Here, the purpose of this
study was to develop a method for detecting porphyrin concentration
using the assistance of giant magnetoresistance. In short of the method,
we added Fe<SUP>3+</SUP> solution to the porphyrin, and the mixed
solution was introduced to the magnetic field. Next, the magnetized
solution was introduced to the magnetic sensor to indicate the existence
of porphyrin in the solution. To confirm the effectiveness of our method
in detecting porphyrin, we varied the flow rate and concentration of
Fe<SUP>3+</SUP>-modified porphyrin solution. The result showed that the
more concentration and the slower flow rate affected the higher
sensitivity gained. Since this developed method is simple but effective
for detecting porphyrin concentration, we believe that further
development of this method will be benefit for many applications,
specifically relating to the medical uses.Budiman, M. A.: On Using Goldbach G0 Codes and Even-Rodeh Codes for Text Compression on Using Goldbach G0 Codes and Even-Rodeh Codes for Text Compression
http://adsabs.harvard.edu/abs/2017MS%26E..180a2062B
This research aims to study the efficiency of two variants of
variable-length codes (i.e., Goldbach G0 codes and Even-Rodeh codes) in
compressing texts. The parameters being examined are the ratio of
compression, the space savings, and the bit rate. As a benchmark, all of
the original (uncompressed) texts are assumed to be encoded in American
Standard Codes for Information Interchange (ASCII). Several texts,
including those derived from some corpora (the Artificial corpus, the
Calgary corpus, the Canterbury corpus, the Large corpus, and the
Miscellaneous corpus) are tested in the experiment. The overall result
shows that the Even-Rodeh codes are consistently more efficient to
compress texts than the unoptimzed Goldbach G0 codes.Budiman, M. A.: Multi-Pivot Quicksort: an Experiment with Single, Dual, Triple, Quad, and Penta-Pivot Quicksort Algorithms in Python
http://adsabs.harvard.edu/abs/2017MS%26E..180a2051B
Dual-pivot quicksort, which was proposed by Yaroslavsky, has been
experimentally proven to be more efficient than the classical
single-pivot quicksort under the Java Virtual Machine [6]. Moreover,
Kushagara, López-Ortiz, and Munro [4] has shown that triple-pivot
quicksort runs 7-8% faster than dual-pivot quicksort in C, mutatis
mutandis. In this research, we implement and experiment with single,
dual, triple, quad, and penta-pivot quicksort algorithms in Python. Our
experimental results are as follows. Firstly, the quicksort with single
pivot is the slowest among the five variants. Secondly, at least until
five (penta) pivots are being used, it is proven that the more pivots
are used in a quicksort algorithm, the faster its performance becomes.
Thirdly, the increase of speed resulted by adding more pivots tends to
decrease gradually.Akbar, F. T.: Higher dimensional curved domain walls on Kähler surfaces
http://adsabs.harvard.edu/abs/2017AnPhy.378....1A
In this paper we study some aspects of curved BPS-like domain walls in
higher dimensional gravity theory coupled to scalars where the scalars
span a complex Kähler surface with scalar potential turned on.
Assuming that a fake superpotential has a special form which depends on
Kähler potential and a holomorphic function, we prove that BPS-like
equations have a local unique solution. Then, we analyze the vacuum
structure of the theory including their stability using dynamical system
and their existence in ultraviolet-infrared regions using
renormalization group flow.Shanie, T.: Text grouping in patent analysis using adaptive K-means clustering algorithm
http://adsabs.harvard.edu/abs/2017AIPC.1827b0041S
Patents are one of the Intellectual Property. Analyzing patent is one
requirement in knowing well the development of technology in each
country and in the world now. This study uses the patent document coming
from the Espacenet server about Green Tea. Patent documents related to
the technology in the field of tea is still widespread, so it will be
difficult for users to information retrieval (IR). Therefore, it is
necessary efforts to categorize documents in a specific group of related
terms contained therein. This study uses titles patent text data with
the proposed Green Tea in Statistical Text Mining methods consists of
two phases: data preparation and data analysis stage. The data
preparation phase uses Text Mining methods and data analysis stage is
done by statistics. Statistical analysis in this study using a cluster
analysis algorithm, the Adaptive K-Means Clustering Algorithm. Results
from this study showed that based on the maximum value Silhouette,
generate 87 clusters associated fifteen terms therein that can be
utilized in the process of information retrieval needs.Rahmawati, S.: Text mining factor analysis (TFA) in green tea patent data
http://adsabs.harvard.edu/abs/2017AIPC.1827b0040R
Factor analysis has become one of the most widely used multivariate
statistical procedures in applied research endeavors across a multitude
of domains. There are two main types of analyses based on factor
analysis: Exploratory Factor Analysis (EFA) and Confirmatory Factor
Analysis (CFA). Both EFA and CFA aim to observed relationships among a
group of indicators with a latent variable, but they differ
fundamentally, a priori and restrictions made to the factor model. This
method will be applied to patent data technology sector green tea to
determine the development technology of green tea in the world. Patent
analysis is useful in identifying the future technological trends in a
specific field of technology. Database patent are obtained from agency
European Patent Organization (EPO). In this paper, CFA model will be
applied to the nominal data, which obtain from the presence absence
matrix. While doing processing, analysis CFA for nominal data analysis
was based on Tetrachoric matrix. Meanwhile, EFA model will be applied on
a title from sector technology dominant. Title will be pre-processing
first using text mining analysis.Junior, C. F.: Forecasting of PT. PLN (Persero) revenue using radial basis function neural network
http://adsabs.harvard.edu/abs/2017AIPC.1827b0037J
PT. PLN (Persero) Distribusi Jakarta Raya (Disjaya) is a
government-owned company that job is to maintain electricity
distribution in Jakarta and Tangerang. The company's revenue can be seen
from the pattern of the existing data, constantly increasing every year.
This research aims to forecast company's revenue. The forecasting method
using Artificial Neural Network method with Radial Basis Function (RBF)
model based on historic data from January 2010 to December 2015. Based
on the result of this research, the best model obtained (1-6-1) with
composition 1 Neuron from input layer, 6 Neuron from hidden layer, and 1
Neuron output layer. The MAPE obtained with this model is 1.32 %.Setiyorini, A.: Implementations of geographically weighted lasso in spatial data with multicollinearity (Case study: Poverty modeling of Java Island)
http://adsabs.harvard.edu/abs/2017AIPC.1827b0003S
Geographically Weighted Regression (GWR) is a regression model that
takes into account the spatial heterogeneity effect. In the application
of the GWR, inference on regression coefficients is often of interest,
as is estimation and prediction of the response variable. Empirical
research and studies have demonstrated that local correlation between
explanatory variables can lead to estimated regression coefficients in
GWR that are strongly correlated, a condition named multicollinearity.
It later results on a large standard error on estimated regression
coefficients, and, hence, problematic for inference on relationships
between variables. Geographically Weighted Lasso (GWL) is a method which
capable to deal with spatial heterogeneity and local multicollinearity
in spatial data sets. GWL is a further development of GWR method, which
adds a LASSO (Least Absolute Shrinkage and Selection Operator)
constraint in parameter estimation. In this study, GWL will be applied
by using fixed exponential kernel weights matrix to establish a poverty
modeling of Java Island, Indonesia. The results of applying the GWL to
poverty datasets show that this method stabilizes regression
coefficients in the presence of multicollinearity and produces lower
prediction and estimation error of the response variable than GWR does.Sutiyoko: Neutron radiography and tomography investigations on the porosity of the as-cast titanium femoral stem
http://adsabs.harvard.edu/abs/2017MS%26E..172a2057S
Gating system design in the centrifugal casting is one of the factors
that influence the porosity of the femoral stem. The objective of this
research is to analysis the porosity in the as-cast titanium femoral
stem by neutron radiography and tomography. Three gating system designs
which in three-ingates, four-ingates, and four-ingates by inversed
position of the femoral stem were casted by a vertical centrifugal
casting in investment mold. The porosity distribution in the titanium
femoral stem was investigated by the neutron radiography film and
followed by neutron tomography. The results indicate that there are
large internal porosity in the subsurface region on both of the
four-ingates designs but only small internal porosity on the
three-ingates design. The large porosity also takes place in largest
part of the femoral stem at all of the gating system designs. The
product may be rejected due to the sub-surface porosity. The
three-ingates design has the smallest risk on the reject product.Prayoga, B. T.: Neutron computed tomography investigation of the porosity on the titanium femoral knee investment casting
http://adsabs.harvard.edu/abs/2017MS%26E..172a2008P
Rotational velocity in the centrifugal casting is one of the factors
that affect to the porosity of the femoral knee cast. The objective of
this research is to investigate the internal porosity of as-cast femoral
knee prostheses. CP-titanium femoral knee was cast using vertical
centrifugal investment casting. The three rotational velocities
parameter utilized in the vertical centrifugal casting were 45, 55 and
65 rpm. Neutron computed tomography characterization was conducted to
investigate the size, percentage, and location of pores. The maximum
size of pores in casting with the rotational velocity of 45, 55, and 65
rpm are 14.78 mm<SUP>3</SUP>, 14.98 mm<SUP>3</SUP>, and, 14.65
mm<SUP>3</SUP>, respectively. The percentage of pores in the casting
with the rotational velocity of 45, 55, and 65 rpm are 1.78%, 2.78% and,
1.78% respectively. The size and percentage of the pores for casting at
the rotational velocity of 65 rpm are smaller than the size and
percentage of the casting at 45 and 55 rpm.Wirawan, R.: Monte Carlo Modeling of Gamma Ray Backscattering for Crack Identification in the Aluminum alloy Plate
http://adsabs.harvard.edu/abs/2017JPhCS.799a2010W
A Monte Carlo simulation study has been conducted of the Cs-37 gamma ray
backscattering in the aluminum alloy plate. This simulation was
performed in order to identify the existence of the crack in the
aluminum alloy plate, the correlation between the backscattering peak
and the crack width. We are able to analyze the absorbed energy
distribution in the NaI(Tl) scintillation detector. For the experimental
measurement, we are using 5 μCi of a Cs-137 gamma source and 2 in. x
2in. NaI(Tl) scintillation detector with the PMT. The aluminum alloy
dimension is about 8 cm x 6 cm x 1 cm. The crack model is represented by
the slit with the varying width (1 mm, 2 mm, 4 mm, and 6 mm). The
existence of a crack is identified by the decreasing intensity of the
gamma backscattering energy peak. These predicted results have a good
agreement with the experimental measurement.Evita, M.: Bandwidth management for mobile mode of mobile monitoring system for Indonesian Volcano
http://adsabs.harvard.edu/abs/2017AIPC.1801g0004E
Volcano monitoring requires the system which has high-fidelity operation
and real-time acquisition. MONICA (Mobile Monitoring System for
Indonesian Volcano), a system based on Wireless Sensor Network, mobile
robot and satellite technology has been proposed to fulfill this
requirement for volcano monitoring system in Indonesia. This system
consists of fixed-mode for normal condition and mobile mode for
emergency situation. The first and second modes have been simulated in
slow motion earthquake cases of Merapi Volcano, Indonesia. In this
research, we have investigated the application of our bandwidth
management for high-fidelity operation and real time acquisition in
mobile mode of a strong motion earthquake from this volcano. The
simulation result showed that our system still could manage the
bandwidth even when there were 2 died fixed node after had stroked by
the lightning. This result (64% to 83% throughput in average) was still
better than the bandwidth utilized by the existing equipment (0%
throughput because of the broken seismometer).Jonuarti, R.: Stability and electronic properties of defective single walled carbon nanotubes (CNTs)
http://adsabs.harvard.edu/abs/2017AIPC.1801b0004J
In this project we using density functional theory (DFT) to investigate
stability and the changes of electronic properties of single walled
carbon nanotubes (SWCNT) defect by vacancy. We chosen a (10,0) and (8,0)
SWCNT pristine geometry which have zigzag structure. We observed that
defect not only can affect the changes of properties such as energy,
bond length, and deformation of CNT structures, but also the stability
and the electronic properties of CNT. The changes of various bond length
of atoms around the vacancies area about 0.051 A<SUP>0</SUP>smaller or
0.1 A<SUP>0</SUP> larger than the original C-C bond length. In addition,
by calculating the formation energy, it gives us information that
divacancy or V<SUB>2</SUB> is the most stable vacancy. Numbers of
vacancy make an electronic properties transition from semiconductor to
metal.Ming, K.: Gravitoelectromagnetism in teleparallel equivalent of general relativity: A new alternative
http://adsabs.harvard.edu/abs/2017IJMPD..2650092M
Spaniol and Andrade introduced gravitoelectromagnetism in TEGR by
considering superpotentials, times the determinant of tetrads, as the
gravitoelectromagnetic fields. However, since this defined
gravitoelectromagnetic field strength does not give rise to a complete
set of Maxwell-like equations, we propose an alternative definition of
the gravitoelectromagnetic field strength: instead of superpotentials,
torsions are taken as the gravitoelectromagnetic field strengths. Based
on this new proposal, we are able to derive a complete set of
Maxwell-like equations. We then apply them to obtain explicit
expressions of the gravitoelectromagnetic fields both in Schwarzschilds
spacetime and for gravitational waves.Amri, A.: Structural, optical, and mechanical properties of cobalt copper oxide coatings synthesized from low concentrations of sol-gel process
http://adsabs.harvard.edu/abs/2016PSSAR.213.3205A
Not AvailableAkbar, F.: Quasielastic production of polarized hyperons in antineutrino-nucleon reactions
http://adsabs.harvard.edu/abs/2016PhRvD..94k4031A
We have studied the differential cross section as well as the
longitudinal and perpendicular components of polarization of the final
hyperon (Λ ,Σ ) produced in the antineutrino induced
quasielastic charged current reactions on nucleon and nuclear targets.
The nucleon-hyperon transition form factors are determined from the
experimental data on quasielastic (Δ S =0 ) charged current
(anti)neutrino-nucleon scattering and the semileptonic decay of neutron
and hyperons assuming G-invariance, T-invariance, and SU(3) symmetry.
The vector transition form factors are obtained in terms of nucleon
electromagnetic form factors for which various parametrizations
available in the literature have been used. A dipole parametrization for
the axial vector form factor and the pseudoscalar transition form factor
derived in terms of the axial vector form factor assuming PCAC and GT
relation extended to the strangeness sector has been used in numerical
evaluations. The flux averaged cross section and polarization
observables corresponding to the CERN Gargamelle experiment have been
calculated for quasielastic hyperon production and found to be in
reasonable agreement with the experimental observations. The numerical
results for the flux averaged differential cross section d/σ d
Q<SUP>2</SUP> and longitudinal (perpendicular) polarization
P<SUB>L</SUB>(Q<SUP>2</SUP>)(P<SUB>P</SUB>(Q<SUP>2</SUP>)) relevant for
the antineutrino fluxes of MINER ν A , MicroBooNE, and T2K
experiments have been presented. This will be useful in interpreting
future experimental results on production cross sections and
polarization observables from the experiments on the quasielastic
production of hyperons induced by antineutrinos and exploring the
possibility of determining the axial vector and pseudoscalar form
factors in the strangeness sector.Sakti, M. F. R: Near Horizon Extreme Magnetized Kerr Geometry
http://adsabs.harvard.edu/abs/2016arXiv161200701S
The conjectured magnetized Kerr/CFT correspondence states that the
quantum theory of gravity in the near horizon of extreme Kerr black
holes immersed by the magnetic field, Near Horizon Extreme Magnetized
Kerr black holes, is holographic dual to a two-dimensional chiral
conformal field theory. To obtain Near Horizon Extreme Magnetized Kerr
geometry, the extreme limit of the magnetized Kerr metric is taken so, $
a=M $ and then continued by transforming the coordinates to have a
warped and twisted product of $ \textrm{AdS}_2 \times \textrm{S}^2 $,
and also with the Near Horizon Extreme Kerr metric one. Consequently, we
can obtain also the new Ernst potentials for those geometries. Finally,
the transformed central charge from the extremal non-magnetized one to
the magnetized one in the Ernst-Papapetrou formalism is obtained.Athar, M. S.: Lepton production cross sections in quasielastic $\nu/\bar{\nu}-$A scattering
http://adsabs.harvard.edu/abs/2016arXiv161107166A
We present the results of (anti)neutrino induced CCQE cross sections
from some nuclear targets in the energy region of $E_\nu \le 1 GeV$. The
aim of the study is to confront electron and muon production cross
sections relevant for $\nu_\mu \leftrightarrow \nu_e$ or $\bar\nu_\mu
\leftrightarrow \bar\nu_e$ oscillation experiments. The effects due to
lepton mass and its kinematic implications, second class currents and
uncertainties in the axial and pseudoscalar form factors are discussed
for (anti)neutrino induced reaction cross sections on free nucleon as
well as the nucleons bound in a nucleus where nuclear medium effects
influence the cross section. The calculations have been performed using
local Fermi gas model with nucleon correlation effects. The details are
given in Ref.[1].Athar, M. S.: Weak Quasielastic Production of Hyperons
http://adsabs.harvard.edu/abs/2016arXiv161107159A
We present the results for antineutrino induced quasielastic hyperon
production from nucleon and nuclear targets
\cite{Alam:2014bya,Singh:2006xp}. The inputs are the
nucleon-hyperon(N--Y) transition form factors determined from the
analysis of neutrino-nucleon scattering and semileptonic decays of
neutron and hyperons using SU(3) symmetry. The calculations for the
nuclear targets are done in local density approximation. The nuclear
medium effects(NME) like Fermi motion, Pauli blocking and final state
interaction(FSI) effects due to hyperon-nucleon scattering have been
taken into account. The hyperons giving rise to pions through weak
decays also contribute to the weak pion production in addition to the
$\Delta$ excitation mechanism which dominates in the energy region of
$<$ 0.7 GeV. We also present the results of longitudinal and
perpendicular components of polarization of final hyperon
\cite{Akbar:2016awk}. These measurements in the future accelerator
experiments with antineutrinos may give some information on axial vector
and pseudoscalar form factors in the strangeness sector.Rajagukguk, J.: Structural and optical characteristics of Eu3+ ions in sodium-lead-zinc-lithium-borate glass system
http://adsabs.harvard.edu/abs/2016JMoSt1121..180R
Structural and optical properties of Eu<SUP>3+</SUP>-doped
sodium-lead-zinc-lithium-borate glasses
(65-x)B<SUB>2</SUB>O<SUB>3</SUB>sbnd 15Na<SUB>2</SUB>Osbnd 10PbOsbnd
5ZnOsbnd 5Li<SUB>2</SUB>Osbnd xEu<SUB>2</SUB>O<SUB>3</SUB> (where
x = 0, 0.05, 0.1, 0.5, 1.0, 2.0 and 4.0) have been measured
and analyzed by varying the Eu<SUP>3+</SUP> ion concentrations. The
physical parameters such as polaron radius, field strength and inter
nuclear distance have been determined from measurements of densities and
refractive indices. The structural properties of the prepared borate
glasses were analyzed based on X-ray diffraction (XRD) and FTIR
instruments. The diffraction spectra show no characteristic peaks in
these glasses, which indicates the amorphous nature of the glasses. The
infrared spectrum of the Eu<SUP>3+</SUP>-doped
sodium-lead-zinc-lithium-borate glass systems show three disparate
regions for active absorption band around 830-860 cm<SUP>-1</SUP>,
1020-1040 cm<SUP>-1</SUP> and 1170-1180 cm<SUP>-1</SUP>. The
electronic transitions in the UV-vis and NIR regions are assigned to the
<SUP>7</SUP>F<SUB>0</SUB> → <SUP>5</SUP>D<SUB>4</SUB>,
<SUP>7</SUP>F<SUB>0</SUB> → <SUP>5</SUP>G<SUB>2</SUB>,
<SUP>7</SUP>F<SUB>0</SUB> → <SUP>5</SUP>L<SUB>6</SUB>,
<SUP>7</SUP>F<SUB>0</SUB> → <SUP>5</SUP>D<SUB>3</SUB>,
<SUP>7</SUP>F<SUB>0</SUB> → <SUP>5</SUP>D<SUB>2</SUB>,
<SUP>7</SUP>F<SUB>0</SUB> → <SUP>5</SUP>D<SUB>1</SUB>,
<SUP>7</SUP>F<SUB>0</SUB> → <SUP>5</SUP>D<SUB>0</SUB><SUP>7</SUP>F<SUB>1</SUB> → <SUP>5</SUP>D<SUB>0</SUB><SUP>7</SUP>F<SUB>0</SUB> → <SUP>7</SUP>F<SUB>6</SUB>
and <SUP>7</SUP>F<SUB>1</SUB> → <SUP>7</SUP>F<SUB>6</SUB>
levels centered at 362 nm, 380 nm, 395 nm, 414 nm,
465 nm, 533 nm, 583 nm, 590 nm 2092 nm and
2202 nm respectively. Five transition bands of luminescence spectra
have been observed by using an excited wavelength of 395 nm. The
luminescence intensity ratio (R) of
<SUP>5</SUP>D<SUB>0</SUB> → <SUP>7</SUP>F<SUB>2</SUB>
(electric dipole) transition to
<SUP>5</SUP>D<SUB>0</SUB> → <SUP>7</SUP>F<SUB>1</SUB>
(magnetic dipole) transition has been determined to obtain the strength
of the covalent/ionic bond between the Eu<SUP>3+</SUP> ions and the
surrounding ligands. Radiative life time and emission color of the
glasses were estimated and compared with other literature data by
varying Eu<SUP>3+</SUP> concentrations. The experimental lifetime of the
<SUP>5</SUP>D<SUB>0</SUB> level was found to increase with increasing
Eu<SUP>3+</SUP> ion content, suggesting higher non-radiative energy
transfer among Eu<SUP>3+</SUP> ions in the glasses.Yulia: Characterization of motion modes of pseudo-two dimensional granular materials in a vertical rotating drum
http://adsabs.harvard.edu/abs/2016JPhCS.739a2148Y
The aim of this work is to characterize the modes of motion of
pseudo-two dimensional granular materials in a vertical rotating drum.
The granular materials are 4 mm diameter marbles, which are put in a
flat drum with 16 cm diameter and 5 mm thickness. Rotation axis of the
drum is always perpendicular to the direction of gravity. Granular
materials in a vertical rotating drum usually have six modes of motion
i.e. slipping, slumping, rolling, cascading, cataracting, and
centrifuging. Those modes depend on number of granular particles,
rotation speed, and types of materials of granular particles.
Characterization of modes of motion in this work has been conducted by
varying number of particles, rotation speed, and types of materials.
Rotation speed is varied from 15 rpm to 125 rpm, while number of
granular material is varied from 50 to 600. Each steel and plastic
granular materials has five modes of motion with centrifuging mode is
absence in observation of steel materials and slipping mode is absence
in observation of plastic materials, both for the same parameter ranges
used in the experiments. Parameters room of number of particles against
rotation speed for both types of materials are presented.Tiandho, Y.: Dirac Particles Emission from Reissner-Nordstrom-Vaidya Black Hole
http://adsabs.harvard.edu/abs/2016JPhCS.739a2146T
Using Hamilton-Jacobi method, we study the Dirac particles emission from
Reissner-Nordstrom-Vaidya (RNV) black hole. The Dirac particles are
described by Dirac equation in curved spacetime and emission process is
defined as tunneling effect. The probability of Dirac particles emission
is related to the Hawking temperature and we obtain that this
temperature is equal to temperature that derived through spinless
particles emission. Furthermore, we also show that the mass of Dirac
particles does not affect to the Hawking temperature.Mardiansyah, Y.: Effect of horizontal vibration on pile of cylinder avalanches as a pseudo-two dimensional granular system
http://adsabs.harvard.edu/abs/2016JPhCS.739a2145M
Dynamics of pseudo-two dimensional granular material consisted of two
layers cylinder piles positioned on top of a horizontally vibrated plate
is reported in this work. It is aimed to observe structural change of
the cylinder pile vibrated in certain frequency and amplitude.
Dimensionless acceleration Γ= 4π<SUB>2</SUB>f<SUB>2</SUB>A/g
(with g is gravitational acceleration), which is generally used in
granular materials to observe transition between states, e.g. stable,
rotating without slipping, rolling and slipping in Γ-f plane, does
not work well for this system. For this system additional states for the
piles can also be observed, e.g. stable and flowing states. Observations
parameters are frequency f (measured in Hz) and amplitude A (measured in
cm). These parameters are used to construct the A-f plane instead of
Γ-f one.Dewi Kencana Wungu, T.: A Density Functional Theory Study of a Calcium- Montmorillonite: A First Investigation for Medicine Application
http://adsabs.harvard.edu/abs/2016JPhCS.739a2133D
In this study, we performed structural geometry and electronic
properties calculations of calcium - based clay mineral for medicine
application using first principles calculation by means of Density
Functional Theory. Here, a kind of clay mineral used was Ca-
montmorillonite and it is applied as an absorber of dangerous metal
contained in a human body, such as Pb, which causes osteoporosis.
Osteoporosis is a disease associated with bone mass decreases. Since
montmorillonite has ability to exchange its cation (Ca+2), therefore, it
plays an important role in preventing or/and cure human bone from
osteoporosis. In order to understand how Ca-montmorillonite can do
detoxification in the human body, we firstly investigated the mechanism
of Pb adsorption on the surface of Ca-montmorillonite in an atomic level
point of view. We found that the repulsive interactions between H of OH
groups with Ca and Pb yielding the rotation of the H of OH groups of
montmorillonite. A relatively small movement of Ca was observed when Pb
is adsorbed and the band gap of Ca- montmorillonite becomes 1.87 eV
narrow.Sami Novita, S.: Interactive Learning Media for Lenses and Their Applications Using Macro Visual Basic in Microsoft PowerPoint
http://adsabs.harvard.edu/abs/2016JPhCS.739a2114S
There are two types of lenses are used, namely a convex lens and a
concave lens. Microscope is a tool that uses two convex lenses as the
eyepiece and objective lens because it can form a magnified image.
Instead concave lens is usually used as a spectacle lens for
nearsightedness patients because the distance of image formed is closer
than the distance of the object. Just like a mirror, the image formation
by lenses also can be conveniently determined with ray diagrams.
Therefore, this research aims to create a simulation of ray diagrams in
the process of image formation by lenses and their applications using
Macro Visual Basic in Microsoft PowerPoint. Lenses applications made are
the microscope simulation and the combined lenses which consist of a
concave-convex lens combined and a convex-concave lens combined. This
research begins with the preparation of material on the image formation
by lenses and their application. Second, made an appearance on the
program which consists of a PowerPoint slide, CommandButton, Textbox,
OptionButton, Shape and others then wrote programs in Macro Visual Basic
procedure to active the command to do. Input of this simulation can be
given in the form of object distance, focal point distance of lens and
height of objects. The data will be processed according to commands
contained in macros procedure to result image distance, image height,
image magnification and the properties of image. In addition to result
the data, media can also provide output in the form of ray diagrams
simulation on the image formation that can be used to assist students
understanding the image formation by lenses.Salam, R. A.: A Simple Accelerometer Calibrator
http://adsabs.harvard.edu/abs/2016JPhCS.739a2099S
High possibility of earthquake could lead to the high number of victims
caused by it. It also can cause other hazards such as tsunami,
landslide, etc. In that case it requires a system that can examine the
earthquake occurrence. Some possible system to detect earthquake is by
creating a vibration sensor system using accelerometer. However, the
output of the system is usually put in the form of acceleration data.
Therefore, a calibrator system for accelerometer to sense the vibration
is needed. In this study, a simple accelerometer calibrator has been
developed using 12 V DC motor, optocoupler, Liquid Crystal Display (LCD)
and AVR 328 microcontroller as controller system. The system uses the
Pulse Wave Modulation (PWM) form microcontroller to control the motor
rotational speed as response to vibration frequency. The frequency of
vibration was read by optocoupler and then those data was used as
feedback to the system. The results show that the systems could control
the rotational speed and the vibration frequencies in accordance with
the defined PWM.Widartiningsih, P. M.: Predicting jet radius in electrospinning by superpositioning exponential functions
http://adsabs.harvard.edu/abs/2016JPhCS.739a2097W
This paper presents an analytical study of the correlation between
viscosity and fiber diameter in electrospinning. Control over fiber
diameter in electrospinning process was important since it will
determine the performance of resulting nanofiber. Theoretically, fiber
diameter was determined by surface tension, solution concentration, flow
rate, and electric current. But experimentally it had been proven that
significantly viscosity had an influence to fiber diameter. Jet radius
equation in electrospinning process was divided into three areas: near
the nozzle, far from the nozzle, and at jet terminal. There was no
correlation between these equations. Superposition of exponential series
model provides the equations combined into one, thus the entire of
working parameters on electrospinning take a contribution to fiber
diameter. This method yields the value of solution viscosity has a
linear relation to jet radius. However, this method works only for low
viscosity.Arifin, M.: Synthesis of LiFePO4/Li2SiO3/reduced Graphene Oxide (rGO) Composite via Hydrothermal Method
http://adsabs.harvard.edu/abs/2016JPhCS.739a2087A
LiFePO<SUB>4</SUB> is a type of cathode active material used for lithium
ion batteries. It has a high electrochemical performance. However, it
suffers from certain disadvantages such as a very low intrinsic
electronic conductivity and low ionic diffusion. This study was
conducted to increase the conductivity of LiFePO4. We have investigated
the addition of Li2SiO3 and reduced graphene oxide (rGO) to LiFePO4. The
objective of this research was to synthesize
LiFePO<SUB>4</SUB>/Li<SUB>2</SUB>SiO<SUB>3</SUB>/rGO via hydrothermal
method. Fourier transform infrared spectroscopy (FTIR) measurement
showed that the peaks corresponded to the vibration of
LiFePO<SUB>4</SUB>/Li<SUB>2</SUB>SiO<SUB>3</SUB>. Further, X-ray
diffraction (XRD) measurement confirmed a single phase of LiFePO4.
Finally, scanning electron microscopy (SEM) images showed that rGO was
distributed on the LiFePO<SUB>4</SUB>/Li<SUB>2</SUB>SiO<SUB>3</SUB>
structure.Islamy, M. R. F.: Design of Deformation Monitoring System for Volcano Mitigation
http://adsabs.harvard.edu/abs/2016JPhCS.739a2084I
Indonesia has many active volcanoes that are potentially disastrous. It
needs good mitigation systems to prevent victims and to reduce
casualties from potential disaster caused by volcanoes eruption.
Therefore, the system to monitor the deformation of volcano was built.
This system employed telemetry with the combination of Radio Frequency
(RF) communications of XBEE and General Packet Radio Service (GPRS)
communication of SIM900. There are two types of modules in this system,
first is the coordinator as a parent and second is the node as a child.
Each node was connected to coordinator forming a Wireless Sensor Network
(WSN) with a star topology and it has an inclinometer based sensor, a
Global Positioning System (GPS), and an XBEE module. The coordinator
collects data to each node, one a time, to prevent collision data
between nodes, save data to SD Card and transmit data to web server via
GPRS. Inclinometer was calibrated with self-built in calibrator and
tested in high temperature environment to check the durability. The GPS
was tested by displaying its position in web server via Google Map
Application Protocol Interface (API v.3). It was shown that the
coordinator can receive and transmit data from every node to web server
very well and the system works well in a high temperature environment.Saputro, A. G.: DFT study of adsorption of CO2 on palladium cluster doped by transition metal
http://adsabs.harvard.edu/abs/2016JPhCS.739a2083S
We report on a theoretical study of CO<SUB>2</SUB> adsorption on
Pd<SUB>6</SUB>-M (M: Ni, Cu, Pt, Rh) cluster using first-principles
density functional theory (DFT) calculations. We find that
CO<SUB>2</SUB> molecule is adsorbed with a bidendate configuration on
Pd<SUB>7</SUB> and on most of Pd<SUB>6</SUB>M clusters. The bidendate
adsorption configuration is formed due to the filling of the unoccupied
n* orbital of CO<SUB>2</SUB> molecule upon its interaction with
d-orbitals of the cluster. We find that transition metal doping could
modify the adsorption energy, adsorption site and adsorption
configuration of CO<SUB>2</SUB> molecule on Pd<SUB>7</SUB> cluster. We
also predict that the usage of Pd<SUB>6</SUB>M clusters as
CO<SUB>2</SUB> hydrogenation catalysts might facilitate the formations
of HCOO/COOH.Wiraputra, I. G. P. A. E.: Generation of Submicron Bubbles using Venturi Tube Method
http://adsabs.harvard.edu/abs/2016JPhCS.739a2058W
In this experiment, submicron bubbles that have diameters less than 1
millimeter were generated by mixing water and gas by hydrodynamic
cavitation method. The water was forced to pass through a venturi tube
in which the speed of the water will increase in the narrow section, the
throat, of the venturi. When the speed of water increased, the pressure
would drop at the throat of the venturi causing the outside air to be
absorbed via the gas inlet. The gas was then trapped inside the water
producing bubbles. The effects of several physical parameters on the
characteristics of the bubbles will be discussed thoroughly in this
paper. It was found that larger amount of gas pressure during
compression will increase the production rate of bubbles and increase
the density of bubble within water.Habil, H.: Instrumentation system design and laboratory scale simulation of landslide disaster mitigation
http://adsabs.harvard.edu/abs/2016JPhCS.739a2056H
Research on landslide has been developed recently because it may
endanger human life. Landslide is the movement of rock, detritus, or
soils caused by the action of gravity. Landslides are influenced by
several factors such as ground slope, degree of rainfall, land cover
(ground layers), and the vibration around the slopes. From these
factors, tilt detection sensors and soil moisture sensor have been
developed to detect landslide failure. These sensors mounted so that it
can detect the occurrence of landslides. The study was conducted on a
container which contains the sloping ground. Landslide, slope processes,
and soil humidity were investigated in this container. MMA8451Q
accelerometer was used as a tilt sensor to detect the acceleration
assembled in MEMS (Micro Mechanical System) technology since it is
easily available, mass- produced, inexpensive, and high-precision output
data. Landslide simulator has been developed hence the process leading
to landslide event can be directly analyzed without the need of real
life occurrence of landslides. The simulator was made from glass with
size 80 cm × 20 cm × 40 cm that was filled by soil. Based on
the simulation results, there were changes on accelerometer and soil
moisture data during the landslide occurrence.Hikmawan, G.: Energy Conditions of the Five Dimensional with NMDC and Acelerating Universe
http://adsabs.harvard.edu/abs/2016JPhCS.739a2049H
The Energy condition is studied for five dimensional cosmological model
with nonminimal derivative coupling (NMDC) between scalar field and
curvature tensor. We assume that the scale factors of three dimensional
space (a(t)) and the extra dimension (b(t)) is related by b(t) =
(a(t))<SUP>γ</SUP>, where γ is a constant. We apply the Null
Energy Condition (NEC), Weak Energy Condition (WEC), Strong Energy
Condition (SEC) and Dominant Energy Condition (DEC) to our model and
investigate some constraint in order the energy condition violated. The
constraint that we found is appropriate with cosmological model in which
the four-dimensional universe expands with positive acceleration and the
extra dimension decays.Radjabaycolle, F.: Modified Hawking Mass and Geroch Monotonicity on 2-Surfaces
http://adsabs.harvard.edu/abs/2016JPhCS.739a2046R
In this paper, we study several aspects of the modified Hawking mass on
2-surface defined as(1) where R, H, and λ are the scalar
curvature of the surface ∑, the mean curvature of the surface ∑,
and a constant, respectively. Finally, using Geroch approach we study
the monotonicity properties of the Hawking mass and show that m
<SUB>H</SUB>(∑<SUB> t </SUB>) is a nondecreasing function of tAkbar, F. T.: The Stability of Fake Flat Domain Walls on Kähler Manifold
http://adsabs.harvard.edu/abs/2016JPhCS.739a2043A
In this paper, we study the stability of flat fake domain walls solution
of fake N = 1 supergravity in d + 1 dimensions with Kahler surface as
the sigma model. We start with Lagrangian for N = 1 fake supergravity
which is coupling between gravity and complex scalar in d + 1 dimensions
with scalar potential turned on. Then, as in supergravity theory, we
demand that the scalar fields span the Kahler manifold. The equations of
motion for fields can be reduced into first order equations by defining
the superpotential and the resulting equations are called the projection
equation and the fake BPS equation. Finally, we discuss about the
stability of flat fake domain walls by investigating the critical points
of the superpotential and the scalar potential.Yuliza, E.: Realization of Deflection-type Bridge instruments to determine soil moisture using Research-Based Learning
http://adsabs.harvard.edu/abs/2016JPhCS.739a2035Y
It is clear that the quality of education is directly related to the
quality of teachers and the teaching methods. One of the teaching
methods that can improve the quality of education is research-based
learning (RBL) method. In this method, students act as the center of
learning while teachers become the guides that provide direction and
advice. RBL is a learning method that combines cooperative learning,
problem solving, authentic learning, contextual case study and inquiry
approach discovery. The main goal of this method is to construct a
student that can think critically, analyze and evaluate problems, and
find a new science from these problems (learning by doing). In this
paper, RBL is used to improve the understanding about measurement using
deflection-type Bridge that is implemented in the determination of
ground water changes. In general, there are three stages that have been
done. Firstly the exposure stage, then the experience stage and lastly
the capstone stage. The exposure stage aims to increase the knowledge
and the comprehension of student about the topic through understanding
the basics concepts, reviewing the literature and others. The
understanding gained in the exposure stage is being used for application
and analysis at the experience stage. While the final stage is the
publication of research results both verbally and in writing. Based on
the steps that have been conducted, it can be showed that
deflection-type Bridge can be utilized in soil moisture meter.Yuliza, E.: Study of soil moisture sensor for landslide early warning system: Experiment in laboratory scale
http://adsabs.harvard.edu/abs/2016JPhCS.739a2034Y
The high rate of rainfall is the main trigger factor in many cases of
landslides. However, each type of soils has unique characteristics and
behavior concerning the rainfall infiltration. Therefore, early warning
system of landslide will be more accurate by monitoring the changes of
ground water condition. In this study, the monitoring of ground water
changes was designed by using soil moisture sensor and simple
microcontroller for data processing. The performance of soil moisture
sensor was calibrated using the gravimetric method. To determine the
soil characteristic and behavior with respect to water content that
induce landslides, an experiment involving small-scale landslide model
was conducted. From these experiments, the electric resistance of the
soil increased as soil water content increases. The increase of soil
water content led to the rise of the pore pressure and soil weight which
could cause soil vulnerability to the movement. In addition, the various
soil types were used to determine the responses of soils that induce the
slope failure. Experimental results showed that each type of soils has
different volumetric water content, soil matrix suction and shear
strength of the slope. This condition influenced the slope stability
that trigger of landslide.Dwiputra, D.: Nonlinear Model of the Specificity of DNA-Protein Interactions and Its Stability
http://adsabs.harvard.edu/abs/2016JPhCS.739a2030D
Specific DNA-protein interactions are fundamental processes of living
cells. We propose a new model of DNA-protein interactions to explain the
site specificity of the interactions. The hydrogen bonds between DNA
base pairs and between DNA-protein peptide groups play a significant
role in determination of the specific binding site. We adopt the Morse
potential with coupling terms to construct the Hamiltonian of coupled
oscillators representing the hydrogen bonds in which the depth of the
potentials vary in the DNA chain. In this paper we investigate the
stability of the model to determine the conditions satisfying the
biological circumstances of the DNA-protein interactions.Pohan, A. S. K.: Dynamics of massive interacting scalar fields in Bekenstein- Sandvik-Barrow-Magueijo theory
http://adsabs.harvard.edu/abs/2016JPhCS.739a2018P
We examine the dynamical characteristics of massive interacting scalar
field introduced in the Bekenstein-Sandvik-Barrow-Magueijo (BSBM)
theory. Based on the classification of matter- and radiation-dominated
cosmological eras, we consider three possible physical scenarios that
allowed by the theory. We present the analysis of its dynamics in terms
of phase space of the corresponding massive scalar field. The results
demonstrate distinct characteristics between those eras. Characteristic
of the related fine structure constant is also discussed.Akbar, A.: Design and Implementation of Automatic Air Flow Rate Control System
http://adsabs.harvard.edu/abs/2016JPhCS.739a2011A
Venturimeter is an apparatus that can be used to measure the air flow
rate. In this experiment we designed a venturimeter which equipped with
a valve that is used to control the air flow rate. The difference of
pressure between the cross sections was measured with the differential
pressure sensor GA 100-015WD which can calculate the difference of
pressures from 0 to 3737.33 Pa. A 42M048C Z36 stepper motor was used to
control the valve. The precision of this motor rotation is about 0.15
°. A Graphical User Interface (GUI) was developed to monitor and set
the value of flow rate then an 8-bit microcontroller was used to process
the control system In this experiment- the venturimeter has been
examined to get the optimal parameter of controller. The results show
that the controller can set the stable output air flow rate.Kwek, L. C.: Quantum Information Science: An Update
http://adsabs.harvard.edu/abs/2016JPhCS.739a2001K
It is now roughly thirty years since the incipient ideas on quantum
information science was concretely formalized. Over the last three
decades, there has been much development in this field, and at least one
technology, namely devices for quantum cryptography, is now
commercialized. Yet, the holy grail of a workable quantum computing
machine still lies faraway at the horizon. In any case, it took nearly
several centuries before the vacuum tubes were invented after the first
mechanical calculating were constructed, and several decades later, for
the transistor to bring the current computer technology to fruition. In
this review, we provide a short survey of the current development and
progress in quantum information science. It clearly does not do justice
to the amount of work in the past thirty years. Nevertheless, despite
the modest attempt, this review hopes to induce younger researchers into
this exciting field.Hidayat, A. H.: Higher dimensional Penrose inequality in spherically symmetric spacetime
http://adsabs.harvard.edu/abs/2016ChJPh..54..582H
Not AvailableAriwahjoedi, S.: Degrees of freedom in discrete geometry
http://adsabs.harvard.edu/abs/2016arXiv160707963A
Following recent developments in discrete gravity, we study geometrical
variables (angles and forms) of simplices in the discrete geometry point
of view. Some of our relatively new results include: new ways of writing
a set of simplices using vectorial (differential form) and
coordinate-free pictures, and a consistent procedure to couple particles
of space, together with a method to calculate the degrees of freedom of
the system of 'quanta' of space in the classical framework.Gunara, B. E.: Self-Gravitating Static Black Holes in 4D Einstein-Klein-Gordon System with Nonminimal Derivative Coupling
http://adsabs.harvard.edu/abs/2016arXiv160705479G
We study static black holes of four dimensional gravitational model with
nonminimal derivative coupling and a scalar potential turned on. By
taking an ansatz, namely, the first derivative of the scalar field is
proportional to square root of a metric function, we reduce the Einstein
field equation and the scalar field equation of motions into a single
highly nonlinear differential equation. We show that near boundaries the
solution is not the critical point of the scalar potential and the
effective geometry becomes a space of constant scalar curvature.Assafari, R. F.: Axisymmetric Stationary Spacetimes of Constant Scalar Curvature in Four Dimensions
http://adsabs.harvard.edu/abs/2016arXiv160602805A
In this paper we construct a special class of four dimensional
axissymmetric stationary spacetimes whose Ricci scalar is constant in
the Boyer-Lindquist coordinates. The first step is to construct Einstein
metric by solving a modified Ernst equation for nonzero cosmological
constant. Then, we modify the previous result by adding two additional
functions to the metric to obtain a more general metric of constant
scalar curvature which are not Einstein.Salam, R. A.: A simple and low cost tilt examiner system development for a precise landslide early warning system
http://adsabs.harvard.edu/abs/2016AIPC.1730f0005S
Historical data for every disaster provide the information about every
single physical phenomenon that can be observed to estimate and monitor
the happening of the next disaster event. Some physical parameter that
often be investigated are ground movement and changing inclination of
the land. Those phenomena are the key points on predicting the
occurrence of disaster especially landslide and volcano eruption. One of
the method that can be used to prevent the loss of life caused by the
disasters is by observing the movement and the change of the slope of
inclination at the prone areas using tilt sensor. The increase of
possibility of disaster occurrence is reflected on the increase of tilt
sensor usage. Therefore, a simple system for testing the performance of
a tilt sensor is required. A simple and low cost tilt calibrator has
been made by using a stepper motor that is controlled by AVR ATMega8 in
which its data and control parameter would be displayed in a 16×2
LCD. The system calibrator was developed to test the readings of the
slope from the MMA8451Q accelerometer sensor by moving forward from
0° to 90° and then backward from 90° to 0°. The
hysteresis curves of this sensor for each axis have been investigated.
Small hysteresis values have been found at the results of MMA8451Q
sensor measurement which mean that the sensor has a high degree of
stability.Lee, J. Y.: A Study of Radioactive Contamination of Crystals for the AMoRE Experiment
http://adsabs.harvard.edu/abs/2016ITNS...63..543L
Not AvailableFauzi, A.: Rotary forcespun styrofoam fibers as a soilless growing medium
http://adsabs.harvard.edu/abs/2016AIPC.1725b0019F
To make styrofoam fibers from used styrofoam, rotary forcespinning
technique was used because it offers high production rate and affordable
production cost. The used styrofoam was dissolved in acetone to obtain
styrofoam solution as a precursor of syrofoam fibers. Since the
technique utilizes centrifugal force, the precursor was thrown out and
its phase changed to be solid following acetone solvent evaporation.
Long, clean and light styrofoam fibers were then produced. To determine
if the styrofoam fibers is a good soilless growing medium,
physico-chemical properties including pH and electrical conductivity,
bulk density, water retention and wettability were measured. Rockwool,
which is the most popular soilless growing medium and easily obtained
from local farm suppliers, was selected as a benchmark to evaluate the
styrofoam fibers.Kesuma, T.: Coefficient of restitution dependence of intruder rise time in two-dimensional Brazil-nut effect
http://adsabs.harvard.edu/abs/2016AIPC.1723c0014K
Brazil-Nut Effect (BNE) is a granular material phenomenon, where larger
grains (usually known as intruder) rise to the top when the granular
system vibrated. We observe a single intruder rise time of BNE
phenomenon in a two-dimensional molecular dynamics simulation of hard
spheres collision scheme. Some experiments have shown that some granular
properties, such as size and density ratio, play an important role to
determine the rise time. However, other property, such as coefficients
of restitution, is considered not to have a measurable impact. We
explore the intruder inelasticity dependence of the rise time by varying
its coefficient of restitution. We found that the intruder rise time
tends to be flat for relatively high coefficient of restitution and
increases exponentially below a certain deflecting point for low
coefficient of restitution. This holds for specific mass ratio.Hikmawan, G.: Comment on "Gauss-Bonnet inflation"
http://adsabs.harvard.edu/abs/2016PhRvD..93f8301H
Recently, an interesting inflationary scenario, named Gauss-Bonnet
inflation, was proposed by Kanti et al. [Phys. Rev. D 92, 041302 (2015);
Phys. Rev. D 92, 083524 (2015)]. In the model, there is no inflaton
potential, but the inflaton couples to the Guass-Bonnet term. In the
case of quadratic coupling, they find inflation occurs with a graceful
exit. The scenario is attractive because of the natural setup. However,
we show there exists a gradient instability in the tensor perturbations
in this inflationary model. We further prove the no-go theorem for
Gauss-Bonnet inflation without an inflaton potential.Dwiputra, D.: Nonlinear dynamics of specific DNA-protein interactions
http://adsabs.harvard.edu/abs/2016JPhCS.694a2076D
Interactions between DNA binding protein and specific base pairs of
nucleic acid is critical for biological process. We propose a new model
of DNA-protein interactions to depict the dynamics of specific
DNA-protein interactions. Hydrogen bonds (H-bonds) are, among the other
intermolecular interactions in DNA, the most distinctive in term of
specificity of molecular bonds. As H-bonds account for specificity, we
only consider the dynamics affected by H-bonds between DNA base pairs
and H-bonds connecting protein side chains and DNA. The H-bonds are
modelled by Morse potentials and coupling terms in the Hamiltonian of
coupled oscillators resembling a coupling between planar DNA chain and a
protein molecule. In this paper we give a perturbative approach as an
attempt for a soliton solution. The solution is in the form of nonlinear
travelling wave having the amplitudes satisfying coupled nonlinear
Schrodinger equations and is interpreted as the mediator for nonlocal
transmittance of biological information in DNA.Dwiputra, D.: Dynamics of Hydrogen Bonds Coupling on the Specific DNA-Protein Interactions
http://adsabs.harvard.edu/abs/2016arXiv160701608D
We propose a dynamical model depicting the interactions between DNA and
a specific binding protein involving long range transmissions. The
dynamics rely on the coupling between Hydrogen bonds formed between DNA
and protein and between the base pairs because they account for site
specificity of the binding. We adopt the Morse potential with coupling
terms to construct the Hamiltonian. This model gives rise to a breather
excitation, corresponding to the DNA bubble formation, which propagates
as the carrier of genetic information. We examine the various kind of
possible coupling dynamics and suggest the model feasibility in
depicting the renaturation or hybridization processes.Indrasari, W.: Development of alternating current transmitter of detection system for magnetic material in soil subsurface
http://adsabs.harvard.edu/abs/2016AIPC.1719c0047I
Generally, detection system for magnetic material in soil subsurface
using electromagnetic induction method consists of two parts, they are
transmitter and receiver unit. A transmitter must be able to produce a
continuous and stable AC current at a certain frequency, meanwhile
receiver should be able to catch the secondary magnetic field of
magnetic material in soil subsurface. The aim of this study was to
develop a new AC current transmitter of detection system for the
magnetic material in soil subsurface. This paper will describe the
results of the development of AC current transmitter systems, distance
characterization of the sensor detection toward horizontal solenoid
positions, and characterization of magnetic material in the soil
subsurface. It has successfully made the AC current transmitter system,
composed of a sinusoidal signal generator, power amplifier, and a source
of AC magnetic field. The output of the generator has a frequency
varies: 1 kHz, 2 kHz, 5 kHz, and 10 kHz. We found that the AC current
transmitter that has been developed able to work properly up to a
frequency of 10 kHz.Prihtiadi, H.: A simple method to determine leakage location in water distribution based on pressure profiles
http://adsabs.harvard.edu/abs/2016AIPC.1719c0045P
Nowadays, the pipeline leak is a serious problem for water distributions
in big cities and the government that needs action and a great solution.
Several techniques have been developed to improve the accuracy, the
limitation of losses, and decrease environmental damage. However, these
methods need highly costs and complexity equipment. This paper presents
a simple method to determine leak location with the gradient
intersection method calculations. A simple water distribution system
have been built on PVC pipeline along 4m, diameter 15mm and 12 pressure
sensors which placed into the pipeline. Each sensor measured the
pressure for each point and send the data to microcontroller. The
artificial hole was made between the sixth and seventh of sensor. With
three holes, the system calculated and analyzed the leak location with
error 3.67%.Sanjaya, E.: A comparative study of flat coil and coil sensor for landslide detection
http://adsabs.harvard.edu/abs/2016AIPC.1719c0044S
The landslide is one of the most costly catastrophic events in terms of
human lives and infrastructure damage, thus an early warning monitoring
for landslides becomes more and more important. Currently existing
monitoring systems for early warning are available in terms of
monolithic systems. This is a very cost-intensive way, considering
installation as well as operational and personal expenses. We have been
developing a landslide detection system based on flat coil and coil
sensor. The flat coil element being developed is an inductive proximity
sensor for detection mass of soil movement. The simple method of flat
coil manufactures and low cost, is an attraction that is still inspired
to develop flat coil sensors. Meanwhile, although it has a drawback in
terms of their size, the coil sensor is still required in many fields
due to their sensitivity and robustness. The simple method of coil
manufacture and the materials are commonly available and low cost, is an
attraction that is still inspired to develop induction coil sensors. A
comparative study of alternative configuration of sensor based on flat
coil elements and a coil in application to landslide detection has been
discussed in this paper. The purpose of this comparison is to show the
ideal conditions and the challenges for each sensor. Furthermore, a
comparison between flat coil and coil sensor is presented.Wella, S. A.: The study of electronic structure and properties of silicene for gas sensor application
http://adsabs.harvard.edu/abs/2016AIPC.1719c0039W
In this study, we investigated the adsorption of gas molecules
(H<SUB>2</SUB>S, CO) on pristine silicene using first principles
calculation. The structure, electronic properties, and adsorption energy
of H<SUB>2</SUB>S,CO/silicene are discussed thoroughly. We found that
the pristine silicenewith low buckling structure is the most stable as
compared with planar and high buckling structures. Silicene was able to
detect a gas molecule which can be observed according tothe density of
states analysis. Though a gas molecule adsorbed weakly, the electronic
properties of the low buckling pristine silicene changed from semi-metal
(zero band gap) to semiconductor. The adsorption energy of
H<SUB>2</SUB>S and CO on silicene is 0.075 eV and 0.06 eV, respectively.Hartono, A.: Electric field poling 2G V/m to improve piezoelectricity of PVDF thin film
http://adsabs.harvard.edu/abs/2016AIPC.1719c0021H
Polyvinylidene fluoride (PVDF) is a polymer with unique characteristics
i.e. piezoelectric and ferrroelectric properties. Piezoelectric
propertiesof PVDF are determined by the fraction of β-phase
structure. Several optimization methods have been developed to improve
the piezoelectric properties of PVDF. One of our research efforts is to
improve the piezoelectricity of PVDF by electric poling with high
electric field 2G V/m. The application of high electric field performed
on PVDF films with a thickness of 1 1m. Each sample was made with a deep
coating method, with annealing temperature 70°C-110°C. Based on
the XRD characterization, we have obtained value of β-fraction of
samples after poling are: 56%, 61%, 77%, 81% and 83%, respectively.
Therefore, high electric field poling has been able to improve the
piezoelectric properties of PVDF films. The PVDF with good piezoelectric
properties are potential can did a tes for piezoelectric sensors and
actuators devices.Triyanta, S., H. M.: Hawking temperatures for the Vaidya and the Reissner-Nordstrom-Vaidya black holes
http://adsabs.harvard.edu/abs/2016AIPC.1719c0009T
We derive the Hawking temperature for both the Vaidya and the
Reissner-Nordstrom-Vaidya black holes in two methods, the radial null
geodesic method and the complex path method. Both black holes differ in
some ways including the charge content and the number of horizons: the
Vaidya black hole is charge-less and it has a single horizon while the
Reissner-Nordstrom-Vaidya black hole is charged and it has two horizons.
We obtain that the Hawking temperature for both black holes depends on
their masses and on the radial change of their masses. Black hole with
greater mass has a lesser Hawking temperature. We also obtain that there
is a condition that should be fulfilled in order to guaranty positive
values of the Hawking temperature. Some special cases for the
Reissner-Nordstrom-Vaidya black hole are also discussed.Setiani, T. D.: Study on efficiency of time computation in x-ray imaging simulation base on Monte Carlo algorithm using graphics processing unit
http://adsabs.harvard.edu/abs/2016AIPC.1719c0007S
Monte Carlo (MC) is one of the powerful techniques for simulation in
x-ray imaging. MC method can simulate the radiation transport within
matter with high accuracy and provides a natural way to simulate
radiation transport in complex systems. One of the codes based on MC
algorithm that are widely used for radiographic images simulation is
MC-GPU, a codes developed by Andrea Basal. This study was aimed to
investigate the time computation of x-ray imaging simulation in GPU
(Graphics Processing Unit) compared to a standard CPU (Central
Processing Unit). Furthermore, the effect of physical parameters to the
quality of radiographic images and the comparison of image quality
resulted from simulation in the GPU and CPU are evaluated in this paper.
The simulations were run in CPU which was simulated in serial condition,
and in two GPU with 384 cores and 2304 cores. In simulation using GPU,
each cores calculates one photon, so, a large number of photon were
calculated simultaneously. Results show that the time simulations on GPU
were significantly accelerated compared to CPU. The simulations on the
2304 core of GPU were performed about 64 -114 times faster than on CPU,
while the simulation on the 384 core of GPU were performed about 20 - 31
times faster than in a single core of CPU. Another result shows that
optimum quality of images from the simulation was gained at the history
start from 10<SUP>8</SUP> and the energy from 60 Kev to 90 Kev. Analyzed
by statistical approach, the quality of GPU and CPU images are
relatively the same.Ming, K.: Possibility of gravitational quantization under the teleparallel theory of gravitation
http://adsabs.harvard.edu/abs/2016AIPC.1719c0004M
Teleparallel gravity (TG) or tele-equivalent general relativity (TEGR)
is an alternative gauge theory for gravity. In TG tetrad fields are
defined to express gravitational fields and act like gauge potentials in
standard gauge theory. The lagrangians for the gravitational field in TG
and for the Yang-Mills field in standard gauge theory differ due to
different indices that stick on the components of the corresponding
fields: two external indices for tetrad field and internal and external
indices for the Yang-Mills field. Different types of indices lead to
different possible contractions and thus lead to different expression of
the lagrangian for the Yang Mills field and for the tetrad field. As TG
is a gauge theory it is then natural to quantize gravity in TG by
applying the same procedure of quantization as in the standard gauge
theory. Here we will discuss on the possibility to quantize gravity,
canonically and functionally, under the framework of TG theory.Kesuma, T.: Influence of Contactopy on Two-Dimensional Brazil-Nut Effect
http://adsabs.harvard.edu/abs/2016E%26ES...31a2001K
Using hard sphere collision scheme and molecular dynamics method
simulation, two-dimension Brazil-Nut Effect (BNE) is conducted. BNE
inital configurations are artificially created to obtain number of
contacts between the grains, called as contactopy. It is observed that
from initial condition until the end of BNE observation, center-of-mass
in vertical direction tends to decrease, while contactopy tends to
increase, which are similar to the reported results in a
Gedankenexperiment (Viridi et al., 2014). Initial configurations which
are also dependent on contactopy influence the rise time since it can
override influence of density ratio that should affect rise time
(Möbius et al., 2001). We investigate on how the intruder rise time
influenced by contactopy, as well as density.Rivandi, A.: 3D Geothermal Modelling Using Gravity Survey on Dolok Marawa, Simalungun District, North Sumatera
http://adsabs.harvard.edu/abs/2016E%26ES...29a2011R
In North Sumatera, gravity method is applied to identify the geothermal
model. This method measured the earth gravitational field. This research
has 160 measurement points covering 9 square kilometers. We obtained
complete Bouguer anomaly values ranging 85 mGal - 130.68 mGal
interpreted as a heat source of andesitic igneous rocks that are
affected by the presence of Mount Bahtopu magma chamber. We interpreted
the values between 40 mGal - 80 mGal as reservoir and caprock. The 3D
gravity inverse modelling conducted using Gravblox, and identifying the
following lithologies; Toba Pyroclastic Fall (Qjt) with density 1.92
g/cm<SUP>3</SUP>, Toba Pyroclastic Flow (Qjt) with density 2.00
g/cm<SUP>3</SUP>, Mount Bahtopu Andesite (Qlb) with density 2.4
g/cm<SUP>3</SUP>, and 2.6 g/cm<SUP>3</SUP> which is interpreted as heat
source in form of andesitic rock and Mount Bahtopu magma chamber. This
heat source is estimated to be at a depth of 1.45 km to 3.78 km below
the surface.Akbar, F.: Revisiting ν μ (bar{ν }μ ) and ν e(bar{ν }e) Induced Quasielastic Scattering from Nuclei in Sub-GeV Energy Region
http://adsabs.harvard.edu/abs/2016nuin.confa0053A
We present the results of charged current quasielastic (CCQE) scattering
cross sections from free as well as bound nucleons like in
<SUP>12</SUP>C, <SUP>16</SUP>O, <SUP>40</SUP>Ar, and <SUP>208</SUP>Pb
nuclear targets in E<SUB>ν </SUB>(<SUB>{bar{ν </SUB>}}) ≤ 1 GeV
energy region. The results are obtained using local Fermi gas model with
and without RPA effect. The differences those may arise in the electron
and muon production cross sections due to the different lepton mass,
uncertainties in the axial dipole mass M<SUB>A</SUB> and pseudoscalar
form factor, and due to the inclusion of second class currents have been
highlighted for neutrino/antineutrino induced processes.Alenkov, V.: Technical Design Report for the AMoRE $0\nu\beta\beta$ Decay Search Experiment
http://adsabs.harvard.edu/abs/2015arXiv151205957A
The AMoRE (Advanced Mo-based Rare process Experiment) project is a
series of experiments that use advanced cryogenic techniques to search
for the neutrinoless double-beta decay of \mohundred. The work is being
carried out by an international collaboration of researchers from eight
countries. These searches involve high precision measurements of
radiation-induced temperature changes and scintillation light produced
in ultra-pure \Mo[100]-enriched and \Ca[48]-depleted calcium molybdate
($\mathrm{^{48depl}Ca^{100}MoO_4}$) crystals that are located in a deep
underground laboratory in Korea. The \mohundred nuclide was chosen for
this \zeronubb decay search because of its high $Q$-value and favorable
nuclear matrix element. Tests have demonstrated that \camo crystals
produce the brightest scintillation light among all of the molybdate
crystals, both at room and at cryogenic temperatures.
$\mathrm{^{48depl}Ca^{100}MoO_4}$ crystals are being operated at
milli-Kelvin temperatures and read out via specially developed
metallic-magnetic-calorimeter (MMC) temperature sensors that have
excellent energy resolution and relatively fast response times. The
excellent energy resolution provides good discrimination of signal from
backgrounds, and the fast response time is important for minimizing the
irreducible background caused by random coincidence of two-neutrino
double-beta decay events of \mohundred nuclei. Comparisons of the
scintillating-light and phonon yields and pulse shape discrimination of
the phonon signals will be used to provide redundant rejection of
alpha-ray-induced backgrounds. An effective Majorana neutrino mass
sensitivity that reaches the expected range of the inverted neutrino
mass hierarchy, i.e., 20-50 meV, could be achieved with a 200~kg array
of $\mathrm{^{48depl}Ca^{100}MoO_4}$ crystals operating for three years.Akbar, F. T.: Higher Dimensional Curved Domain Walls on K\"ahler Surfaces
http://adsabs.harvard.edu/abs/2015arXiv151205780A
In this paper we study some aspects of curved BPS-like domain walls in
higher dimensional gravity theory coupled to scalars where the scalars
span a complex K\"ahler surface with scalar potential turned on.
Assuming that a fake superpotential has a special form which depends on
K\"ahler potential and a holomorphic function, we prove that BPS-like
equations have a local unique solution. Then, we analyze the vacuum
structure of the theory including their stability using dynamical system
and their existence in ultraviolet-infrared regions using
renormalization group flow.Hikmawan, G.: No-Go Theorem for Gauss-Bonnet Inflation without Inflaton Potential
http://adsabs.harvard.edu/abs/2015arXiv151200222H
Recently, an interesting inflationary scenario, named Gauss-Bonnet
inflation, is proposed by Kanti et
al.~\cite{Kanti:2015pda,Kanti:2015dra}. In the model, there is no
inflaton potential but the inflaton couples to the Guass-Bonnet term. In
the case of quadratic coupling, they find inflation occurs with graceful
exit. The scenario is attractive because of the natural set-up. However,
we show there exists the gradient instability in the tensor
perturbations in this inflationary model. We further prove the no-go
theorem for the Gauss-Bonnet inflation without an inflaton potential.Sungging Mumpuni, E.: Multi-wavelength fibril dynamics and oscillations above sunspot - I. morphological signature
http://adsabs.harvard.edu/abs/2015RAA....15.1843S
In this work we selected one particular fibril from a high resolution
observation of the solar chromosphere with the Dutch Open Telescope, and
tried to obtain a broad picture of the intricate mechanism that might be
operating in the multiple layers of the solar atmosphere visible in high
cadence multi-wavelength observations. We analyzed the changing fibril
pattern using multi-wavelength tomography, which consists of both the
Hα line center and the blue wing, Doppler signal, Ca II H, and the
G-band. We have found that the intermittent ejected material through the
fibril from Doppler images has clearly shown an oscillation mode, as
seen in the Hα blue wing. The oscillations in the umbrae and
penumbrae magnetic field lines that are above the sunspot cause a
broadening and the area forms a ring shape from 3 to 15 minute
oscillations as a function of height. These made a distinct boundary
between the umbrae and penumbrae which suggests a comb structure, and
indicates that the oscillations could propagate along the inclined
magnetic flux tubes from below. The 3 minute oscillations strongly
appeared in the broadly inclined penumbrae magnetic field lines and
showed a clear light bridge. The well known 5 minute oscillations were
dominant in the umbrae-penumbrae region boundary. The long 7 minute
oscillations were transparent in the Hα blue wing, as well as the
10 and 15 minute oscillations. They were concentrated in the
inner-penumbrae, as seen in the Hα line center. From these
findings we propose that the fibril acts as a fabric for interaction
between the layers, as well as related activities around the active
region under investigation.Akbar, F.: Electron and Muon production cross-sections in quasielastic ν(ν¯)-Nucleus scattering for Eν < 1GeV
http://adsabs.harvard.edu/abs/2015IJMPE..2450079A
In this paper, we have studied (anti)neutrino induced charged current
quasielastic (CCQE) scattering from some nuclear targets in the energy
region of Eν < 1GeV. Our aim is to confront electron and muon
production cross-sections relevant for νμ↔νe or
ν¯μ↔ν¯e oscillation experiments. The effects due
to lepton mass and its kinematic implications, radiative corrections,
second class currents (SCCs) and uncertainties in the axial and
pseudoscalar form factors are calculated for (anti)neutrino induced
reaction cross-sections on free nucleon as well as the nucleons bound in
a nucleus where nuclear medium effects influence the cross-section. For
the nuclear medium effects, we have taken some versions of Fermi gas
model (FGM) available in the literature. The results for
(anti)neutrino-nucleus scattering cross-section per interacting nucleons
are compared with the corresponding results in free nucleon case.Ibrahim, I.: Detection Level Enhancements of Gravitational Microlensing Events from Light Curves: the Simulations
http://adsabs.harvard.edu/abs/2015PKAS...30..235I
In Astronomy, intensity of the source light is expressed in magnitude.
Conventionally, magnitude is defined by logarithmic function of the
received flux. This relationship is known as Pogson formulae. For
received flux with small signal to noise ratio (S/N), the formulae gives
large magnitude error. We want to inspect whether using Inverse
Hyperbolic Sine function (hereinafter referred to as Asinh magnitude)
can give an alternative calculation of magnitudes for small S/N flux and
gives better results to represent the magnitude for that region. We
study the possibility of increasing detection level of gravitational
microlensing from 40 selected microlensing events light curves for 2013
and 2014 season by using Asinh magnitude. We obtained that the use of
the Asinh make the events brighter than using logarithmic with average
of about 3.42 x 10^-2 magnitude. We find also average of magnitude error
difference between logarithmic magnitude and Asinh magnitude to is about
2.21 x 10^-2 magnitude, so we propose a limit of magnitude to begin
using formulas Asinh.Mumpuni, E. S.: Multi-Wavelength Fibril Dynamics and Oscillations above Sunspot Wave Propagation
http://adsabs.harvard.edu/abs/2015PKAS...30...59M
Not AvailableSurungan, T.: Spin glass behavior of the antiferromagnetic Heisenberg model on scale free network
http://adsabs.harvard.edu/abs/2015JPhCS.640a2005S
Randomness and frustration are considered to be the key ingredients for
the existence of spin glass (SG) phase. In a canonical system, these
ingredients are realized by the random mixture of ferromagnetic (FM) and
antiferromagnetic (AF) couplings. The study by Bartolozzi et al. [Phys.
Rev. B73, 224419 (2006)] who observed the presence of SG phase on the AF
Ising model on scale free network (SFN) is stimulating. It is a new type
of SG system where randomness and frustration are not caused by the
presence of FM and AF couplings. To further elaborate this type of
system, here we study Heisenberg model on AF SFN and search for the SG
phase. The canonical SG Heisenberg model is not observed in
d-dimensional regular lattices for (d ≤ 3). We can make an analogy
for the connectivity density (m) of SFN with the dimensionality of the
regular lattice. It should be plausible to find the critical value of m
for the existence of SG behaviour, analogous to the lower critical
dimension (d<SUB>l</SUB>) for the canonical SG systems. Here we study
system with m = 2, 3, 4 and 5. We used Replica Exchange algorithm of
Monte Carlo Method and calculated the SG order parameter. We observed SG
phase for each value of m and estimated its corersponding critical
temperature.Syaputra, M.: Study on transport properties of silicene monolayer under external field using NEGF method
http://adsabs.harvard.edu/abs/2015AIPC.1677h0012S
We investigate the current-voltage (I-V) characteristics of a pristine
monolayer silicene using non-equilibrium Green function (NEGF) method
combining with density functional theory (DFT). This method succeeded in
showing the relationship of I and V on silicene corresponding to the
electronic characteristics such as density of states. The external field
perpendicular to the silicene monolayer affects in increasing of the
current. Under 0.2 eV external field, the current reaches the maximum
peak at Vb = 0.3 eV with the increase is about 60% from what it is in
zero external field.Muliyati, D.: First-principles calculations on electronic properties of single-walled carbon nanotubes for H2S gas sensor
http://adsabs.harvard.edu/abs/2015AIPC.1677h0009M
In this research, we performed first-principles calculations by means of
density functional theory (DFT) to investigate the interaction of
H<SUB>2</SUB>S gas on the surface of single-walled carbon nanotubes
(SWNTs). In order to understand the effect of chirality to the
electronic structure of SWNTs/H<SUB>2</SUB>S, the pristine SWNTs was
varied to become SWNTs (5,0), (6,0), (7,0), (8,0), (9,0), and (10,0).
From the calculation we found that after H<SUB>2</SUB>S adsorbed on
surface of SWNTs, the electronic properties of system changes from
semiconductor to metal but not vice versa. It was only SWNTs (5,0),
(7,0), (8,0), and (10,0) occuring the changing on its electronic
properties behavior, others were remain similar with its initial
behavior. In the degassing process, metal return to semiconductor
behavior, which is an indication that SWNTs is a good gas sensors,
responsive and reversible.Syaputra, M.: Study of hydrogenated silicene: The initialization model of hydrogenation on planar, low buckled and high buckled structures of silicene
http://adsabs.harvard.edu/abs/2015AIPC.1677h0006S
We study the hydrogenation structures possessed by silicene i.e. planar
(PL), low buckled (LB) and high buckled (HB). On those structures we
found the hydrogenation process occurs with some particular notes.
Hydrogen stable position on the silicene surface is determined by its
initial configuration. We only considered the fully hydrogenated case
with the formula unit (SiH)<SUB>n</SUB> for all of these structures.
Physical and electronic structure shift after the process are compared
with hydrogenated graphene. Moreover, we observed a chemical process in
the presence of hydrogen on the PL structure by nudged elastic band
(NEB) which illustrates how hydrogen has a significant impact to the
force barrier of the PL that changing it from its original structure.Naa, C. F.: Monte Carlo study of double exchange interaction in manganese oxide
http://adsabs.harvard.edu/abs/2015AIPC.1677h0003N
In this paper we study the magnetoresistance properties attributed by
double exchange (DE) interaction in manganese oxide by Monte Carlo
simulation. We construct a model based on mixed-valence Mn<SUP>3+</SUP>
and Mn<SUP>4+</SUP> on the general system of
Re<SUB>2/3</SUB>Ae<SUB>1/3</SUB>MnO<SUB>3</SUB> in two dimensional
system. The conduction mechanism is based on probability of
e<SUB>g</SUB> electrons hopping from Mn<SUP>3+</SUP> to Mn<SUP>4+</SUP>.
The resistivity dependence on temperature and the external magnetic
field are presented and the validity with related experimental results
are discussed. We use the resistivity power law to fit our data on
metallic region and basic activated behavior on insulator region. On
metallic region, we found our result agree well with the quantum theory
of DE interaction. From general arguments, we found our simulation agree
qualitatively with experimental results.Wella, S. A.: Hydrogen concentration and electric field dependent on electronic properties of germanene
http://adsabs.harvard.edu/abs/2015AIPC.1677h0002W
Electronic properties of the pristine/hydrogenated germanene are
investigated by means of first principles calculations. Our calculation
shows interesting results where the electronic properties of the
hydrogenated germanene exhibit semiconductor with a direct band gap. It
is interesting because pristine germanene (germanium analogue to
graphene) has semi-metal properties with zero band gap. We also obtained
that the band gap of hydrogenated germanene was influenced by the
hydrogen (H) concentration, it is decreasing non-linearly as the H
concentration decreased. As 100 percent concentration of H applied on
top and bottom layer of germanene, the band gap is 1.41 eV. The pairing
of the p<SUB>z</SUB>-orbital of Ge with the s-orbital of H gave
contribution to the band gap of hydrogenated germanene. External
electrical field is also can be applied to open the band gap. The band
gap increasing linearly when the external electrical field increased on
pristine germanene. The external electrical field no longer effect the
band gap when it applied to the hydrogenated germanene.Mumpuni, E. S.: Multi-wavelength fibril dynamics and oscillations above sunspot - Fourier decomposition
http://adsabs.harvard.edu/abs/2015AIPC.1677e0006M
In this work we continue our previous work on wave propagation analysis
using multi-wavelength images from Dutch Open Telescope from exceptional
data observed of Active Region 10789, 2005 July, 13th. By Fourier
analysis we study the layer by layer interaction of the Solar atmosphere
represented by multi-wavelength, consist of Hα both line center
& the blue wing, Ca II H, and the G Band. By Fourier decomposition
from power, coherence and phase-difference along the fibril we try to
discuss the possible mechanism in the area under investigation.Zen, F. P.: Thermodynamical properties of Strunz's quantum dissipative models
http://adsabs.harvard.edu/abs/2015AIPC.1677d0013Z
The existence of the negative of specific heat from quantum dissipative
theory is investigated. Strunz's quantum dissipative model will be used
in this studies. The thermodynamical properties will be studied starts
out from the thermo-dynamic partition function of the dissipative
system. The path integral technique is used to calculate the partition
function under consideration. The results shows that the specific heat
can be negative if the damping parameter more than a half the oscillator
frequency and also occur at low temperatures. For damping factor greater
than the frequency of harmonic oscillator then specific heat will
oscillate at low temperatures and approaching normal conditions at a
high temperature.Hikmawan, G.: Cosmological perturbation analysis of nonminimal derivative coupling of scalar and tensor fields in five dimensions
http://adsabs.harvard.edu/abs/2015AIPC.1677d0008H
Perturbation is studied for non-minimal derivative coupling between a
scalar fields and curvature tensor in five dimensions. We apply this
analysis in flat universal five dimensional spacetime, generate the
field equations and consider special cases at early universe, to get an
exact form of the perturbation parameters. The solutions is used to
explain the coupling parameter of non-minimal derivative coupling with
curvature tensor. We find that for case of static extradimension at
early time, the coupling parameter is approximately have value of ξ
≈ 0, 0274.Tiandho, Y.: Gravitational Bohr's model with Newton's and Weber's potentials
http://adsabs.harvard.edu/abs/2015AIPC.1677d0005T
Similarity between Newtonian gravitational force and Coulomb's force
leads one to define gravitational electric and magnetic fields or
gravito-electromagnetic fields. Also, one may define a gravitational
Bohr's theory in analogy with the electromagnetic Bohr's theory for
which the latter is quite successful in explaining some properties of
hydrogen atom. Unlike to the Coulomb's force, the Newton`s force is
believed to be an approximated theory of gravity as it is unable to
explain the Mercury's orbit. This paper discusses the gravitational
Bohr's theory by taking into account the Newton's potential and Weber's
potential; the later is a modified Newton's gravitational potential that
conforms, to some degrees, to the anomaly of the Mercury's orbit.Wulandari, D.: Localization of a system of vector and scalar fields in a modified Randall-Sundrum model
http://adsabs.harvard.edu/abs/2015AIPC.1677d0003W
We study the localization properties of fields in a system of vector and
scalar fields in a modified Randall-Sundrum model introduced in ref [1].
The fields are mutually coupled through the gauge mechanism. The metric
of the model is conformally flat, has an exponential warp factor, and is
physically distinct to the original Randall-Sundrum metric model. We
derive general conditions for field localization for this system of
matter fields and solve the solution for field equation corresponding to
extra dimension. We obtain that the warp factor should decrease with the
warp factor parameter k=1. Each type of fields solely is able to
localize but all fields cannot.
We analyze from the equation motions of scalar fields and vector fields
to find the solution of extra dimension. We obtain that this solution
for scalar and vector fields differ in general. We derive the
localization properties for the both cases, massless and massive scalar
fields. We then compare the properties with that as shown in ref [1] for
vector and scalar fields which are not coupled one another.Suroso, A.: Energy conditions for the four dimensional cosmological model with nonminimal derivative coupling of scalar field
http://adsabs.harvard.edu/abs/2015AIPC.1677d0001S
The energy conditions is a set of linear equations of energy density
ρ and pressure p which ensure the the field(s) that we used in our
model is physically "reasonable". We study the energy conditions for
four dimensional nonminimal derivative coupling of scalar field and
curvature tensor. Considering the scalar field as a perfect fluid, we
find some constraint for the coupling constant ξ in order the energy
conditions is satisfied or violated. We find that strong energy
conditions (SEC) is violated if -1/9H<SUP>2</SUP> ≤ ξ <
1/18H<SUP>2</SUP>. For de Sitter solution a ∝
e<SUP>H<SUB>0</SUB>t</SUP> for some constant H<SUB>0</SUB>, we find that
while null, weak, and dominant energy conditions violated when ξ
<-[<SUP>12 H<SUB>0</SUB><SUP>2</SUP>(2 +9 H<SUB>0</SUB><SUP>2</SUP>)
] -1</SUP> . The accelerating universe is exist for the power law
solution (a ∝ t<SUP>p</SUP> for constant p) if ξ < 0.Radjabaycolle, F. C.: Hawking mass on two dimensional surfaces
http://adsabs.harvard.edu/abs/2015AIPC.1677c0010R
In this paper, we study several aspects of the Hawking mass on
two-dimensional surfaces defined as [1] m (∑) =√{|∑|/16
π }(1 -1/16 π ∫∑H<SUP>2</SUP>d σ -1/12 π
∫∑R (n ^,n ^)d σ) , (1) where H, n ^ and R are the mean
curvature of the surface Σ, unit normal vector to the surface
Σ, and Ricci tensor of a four-dimensional spacetime, respectively.
In particular, the four-dimensional spacetime is taken to be static and
has the form with d s<SUP>2</SUP>=-Δ (r )d
t<SUP>2</SUP>+Δ<SUP>-1</SUP>(r )d r<SUP>2</SUP>+r<SUP>2</SUP>(d
θ<SUP>2</SUP>+s i n<SUP>2</SUP>θ d ϕ<SUP>2</SUP>),
(2) with Δ (r )=1 -2/M r +q/<SUP>2</SUP> r<SUP>2</SUP> -1/3
Λ r<SUP>2</SUP>. (3) where Λ is a real constant. The
metric (2) describes a black hole in four dimensions carrying mass M and
charge q, with R is equal to a constant Λ. As a result, we find
that the Hawking mass of the metric (2) is shown to be m (S<SUB>r</SUB>
) =M -q/<SUP>2</SUP> 3 r ≤M , (4) where S<SUB>r</SUB> is the
two-surfaces with radius r.Mulyanto, A., Fiki Taufik: Maxwell-Higgs equation on higher dimensional static curved spacetimes
http://adsabs.harvard.edu/abs/2015AIPC.1677c0008M
In this paper we consider a class of solutions of Maxwell-Higgs equation
in higher dimensional static curved spacetimes called Schwarzchild
de-Sitter spacetimes. We obtain the general form of the electric fields
and magnetic fields in background Schwarzchild de-Sitter spacetimes.
However, determining the interaction between photons with the Higgs
scalar fields is needed further studies.Afgani, R.: Special class of higher dimensional stationary manifold
http://adsabs.harvard.edu/abs/2015AIPC.1677c0005A
In this paper, we classify a special class of higher dimensional
stationary manifolds. We consider an n dimensional manifold N with
metric d s<SUP>^2</SUP>=g<SUB>^i j</SUB>d x<SUP>i</SUP>d x<SUP>j</SUP>
which is embedded to an n + 1 dimensional stationary manifold M with
metric d s<SUP>2</SUP>=ɛ/ω<SUP>2</SUP> (d<SUP>t
+α<SUB>i</SUB>d x<SUP>i</SUP>) 2</SUP>+ω<SUP>2</SUP>g<SUB>^i
j</SUB>d x<SUP>i</SUP>d x<SUP>j</SUP>. The submanifold is taken to be
almost complex manifold with parallel and integrable almost complex
structure where dα is its Kähler form. We will demonstrate
that the sub-manifold N is maximally symmetric space if manifold M is
maximally symmetric space, otherwise the sub-manifold N is Einstein
space if manifold M is Einstein space.Hidayat, A. A.: The Penrose inequality in higher dimensional spherically symmetric spacetimes
http://adsabs.harvard.edu/abs/2015AIPC.1677c0003H
In this paper, we give a preliminary proof of the Penrose inequality for
charged and asymptotically flat spacetimes in higher dimensions under
the spherically symmetry and without Riemannian assumption. For the most
part, our steps and arguments are based on method carried out by Malec
and Murchadha to prove the inequality in four dimensional case. To do
so, we propose a quasilocal mass in higher dimensional spacetimes and
show that it plays such an important role to establish the inequaliry in
our case.Akbar, F. T.: The well-posedness of the AdS-sliced domain walls solution for fake N=1 supergravity in d+1 dimensions
http://adsabs.harvard.edu/abs/2015AIPC.1677c0001A
In this paper, we study the well-posedness of the AdS -sliced domain
walls solution for fake N=1 supergravity in higher dimensions. We start
with Lagrangian for fake N=1 supergravity which is coupling between
gravity and complex scalar in d+1 dimensions with scalar potential
turned on. Then, as in supergravity theory, we demand that the scalar
fields span the Kähler manifold. The equations of motion for fields
can be reduced into first order equations by defining the superpotential
and the resulting equations are called the projection equation and the
fake BPS equation. Finally, we prove the local existence and uniqueness
of the projection and fake BPS equations.Ariwahjoedi, S.: How many quanta are there in a quantum spacetime?
http://adsabs.harvard.edu/abs/2015CQGra..32p5019A
Following earlier insights by Livine and Terno, we develop a technique
for describing quantum states of the gravitational field in terms of
coarse grained spin networks. We show that the number of nodes and links
and the values of the spin depend on the observables chosen for the
description of the state. Hence the question in the title of this paper
is ill posed, unless further information about what is been measured is
given.Ariwahjoedi, S.: Curvatures and discrete Gauss-Codazzi equation in (2 + 1)-dimensional loop quantum gravity
http://adsabs.harvard.edu/abs/2015IJGMM..1250112A
We derive the Gauss-Codazzi equation in the holonomy and plane-angle
representations and we use the result to write a Gauss-Codazzi equation
for a discrete (2 + 1)-dimensional manifold, triangulated by isosceles
tetrahedra. This allows us to write operators acting on spin network
states in (2 + 1)-dimensional loop quantum gravity, representing the
3-dimensional intrinsic, 2-dimensional intrinsic, and 2-dimensional
extrinsic curvatures.Padmadisastra, S.: Bayesian underreported in disease mapping
http://adsabs.harvard.edu/abs/2015AIPC.1660e0052P
In this paper we discuss disease mapping construction when the number of
observation is under reported. This case caused the maximum likelihood
estimator of relative risk parameter can't be obtained, different with
the case when the observations are complete. The case of under reported
in this paper is concerned with health case where because of some
reasons there are a number of diseased people who are not counted or not
reported. We suggest a Bayesian method of constructing that considered
under reportedness in the data.Akbar, F. T.: Existence of static dyonic black holes in 4d N = 1 supergravity with finite energy
http://adsabs.harvard.edu/abs/2015JMP....56d2502A
We prove the existence and the uniqueness of the static dyonic black
holes in four dimensional N = 1 supergravity theory coupled vector and
scalar multiplets. We set the near-horizon geometry to be a product of
two Einstein surfaces, whereas the asymptotic geometry has to be a space
of constant scalar curvature. Using these data, we show that there
exists a unique solution for scalar fields which interpolates these
regions.Mumpuni, E. S.: Multi-wavelength analysis from tomography study on solar chromosphere
http://adsabs.harvard.edu/abs/2015AIPC.1656g0009M
The Sun as the most important star for scientific laboratory in
astrophysics as well as encompassing all living aspect on Earth, still
holds scientific mystery. As the established model that the Sun's energy
fueled by the nuclear reaction, along with transport process to the
typical Solar surface on around 6000-K temperature, many aspects still
left as an open questions, such as how the chromosphere responded to the
photospheric dynamics. In this preliminary work, we try to analyze the
Solar chromosphere respond to the Photospheric dynamics using tomography
study implementing multi-wavelength analysis observation obtained from
Dutch Open Telescope. Using the Hydrogen-alpha Doppler signal as the
primary diagnostic tool, we try to investigate the inter-relation
between the magnetic and gas pressure dynamics that occur in the
chromosphere.Naa, C. F.: Simulation of the 2-dimensional Drude's model using molecular dynamics method
http://adsabs.harvard.edu/abs/2015AIPC.1656f0013N
In this paper, we reported the results of the simulation of the
electronic conduction in solids. The simulation is based on the Drude's
models by applying molecular dynamics (MD) method, which uses the
fifth-order predictor-corrector algorithm. A formula of the electrical
conductivity as a function of lattice length and ion diameter τ(L,
d) cand be obtained empirically based on the simulation results.Wirawan, R.: Simulation of energy absorption spectrum in NaI crystal detector for multiple gamma energy using Monte Carlo method
http://adsabs.harvard.edu/abs/2015AIPC.1656f0008W
The spectrum of gamma energy absorption in the NaI crystal
(scintillation detector) is the interaction result of gamma photon with
NaI crystal, and it's associated with the photon gamma energy incoming
to the detector. Through a simulation approach, we can perform an early
observation of gamma energy absorption spectrum in a scintillator
crystal detector (NaI) before the experiment conducted. In this paper,
we present a simulation model result of gamma energy absorption spectrum
for energy 100-700 keV (i.e. 297 keV, 400 keV and 662 keV). This
simulation developed based on the concept of photon beam point source
distribution and photon cross section interaction with the Monte Carlo
method. Our computational code has been successfully predicting the
multiple energy peaks absorption spectrum, which derived from multiple
photon energy sources.Setiadi, A.: Transition mechanism of Stone-Wales defect in armchair edge (5,5) carbon nanotube
http://adsabs.harvard.edu/abs/2015AIPC.1656f0007S
We performed first principles calculations of Stone-Wales (SW) defects
in armchair edge (5,5) carbon nanotube (CNT) by the density functional
theory (DFT). Stone Wales (SW) defect is one kind of topological defect
on the CNT. There are two kind of SW defect on the armchair edge (5,5)
CNT, such as longitudinal and circumference SW defect. Barrier energy in
the formation of SW defects is a good consideration to become one of
parameter in controlling SW defects on the CNT. Our calculation results
that a longitudinal SW defect is more stable than circumference SW
defect. However, the barrier energy of circumference SW defect is lower
than another one. We applied Climbing Image Nudge Elastic Band (CI-NEB)
method to find minimum energy path (MEP) and barrier energy for SW
defect transitions. We also found that in the case of circumference SW
defect, armchair edge (5,5) CNT become semiconductor with the band gap
of 0.0544 eV.Muttaqien, F.: Ab initio study of semiconductor atoms impurities in zigzag edge (10,0) carbon nanotubes
http://adsabs.harvard.edu/abs/2015AIPC.1656f0006M
The substitutional impurities in zigzag edge (10,0) carbon nanotubes
have been studied by using first principles calculations. Silicon (Si),
gallium (Ga), and arsenic (As) atom have been chosen as semiconductor
based-atom for replacing carbon atoms in CNT's surface. The silicon atom
changes the energy gap of pristine zigzag (10,0) CNT, it is 0.19 eV more
narrow than that of pristine CNT. Geometrically, the silicon atom
creates sp<SUP>3</SUP> bond with three adjacent carbon atoms, where the
tetrahedral form of its sp<SUP>3</SUP> bond is consisted of free
unoccupied state. The silicon atom does not induce magnetism to zigzag
CNT. Due to gallium (Ga) and arsenic (As) atom substitution, the zigzag
CNT becomes metallic and has magnetic moment of 1 µ<SUB>B</SUB>.
The valance and conduction band are crossed each other, then the energy
gap is vanished. The electronic properties of GaAs-doped CNT are
dominantly affected by gallium atom and its magnetic properties are
dominantly affected by arsenic atom. These results prove that the CNT
with desired properties can be obtained with substitutional impurities
without any giving structural defect.Sulaiman, A.: Davydov's soliton in an inhomogeneous medium
http://adsabs.harvard.edu/abs/2015AIPC.1656e0012S
The damping effect of the interaction of high-frequency amide-I
vibrations with the low-frequency acoustic vibrations of the protein is
investigated. The phenomena studied phenomonologically by extension of
the nonlinear Schrodinger equation. By introducing a local
approximation, the damping factor can be expressed as a new term i
γ ¯ϕ in the nonlinear Schrodinger equation. The result
show that the soliton with damping propagate slower than original one.
By introducing a periodic external force, the equation of motion is
described by the force-damped nonlinear Schrodinger equation. Solution
based on the variational methods show that the Davidov's soliton will be
accelerated by a periodic external force.Sulaiman, A.: Quantum dissipative effect of one dimension coupled anharmonic oscillator
http://adsabs.harvard.edu/abs/2015AIPC.1656e0011S
Quantum dissipative effect of one dimension coupled anharmonic
oscillator is investigated. The systems are two coupled harmonic
oscillator with the different masses. The dissipative effect is studied
based on the quantum state diffusion formalism. The result show that the
anharmonic effect increase the amplitude but the lifetime of the
oscillation depend on the damping coefficient and do not depend on the
temperature.Suroso, A.: Stability analysis of the nonminimal derivative coupling in five dimensional universal extra dimensions
http://adsabs.harvard.edu/abs/2015AIPC.1656e0007S
We study a nonminimal derivative coupling (NMDC) of scalar field, where
the scalar field is coupled to curvature tensor in the five dimensional
universal extra dimension model. We apply the Einstein equation in and
find the stability of our model. From the stability analysis, we find
that the extradimension, if it exist, can not be static and always
shrink with expansion of four dimensional spacetime.Widiyani, A.: Randall-Sundrum cosmological model with nonminimal derivative coupling of scalar field
http://adsabs.harvard.edu/abs/2015AIPC.1656e0006W
Nonminimal derivative coupling (NMDC) of scalar field in time-dependent
Randall-Sundrum model is investigated. Firstly, we take a simple
relation between the scale factor on the brane, a(t), and the scale
factor of the extradimension, b(t), as b = a<SUP>γ</SUP> where
γ is a constant. Then, we derive the Einstein equation and find
its cosmological solution for a special case of static extra dimension,
γ = 0. As the result, we find that de Sitter solution is a typical
solution of our model. We also find that the brane tension which is
related to cosmological constant on the brane is related to the coupling
constant of the model.Gunara, B. E.: Static spacetimes with Einstein surfaces in 4d Einstein-Maxwell-Higgs theory with general couplings
http://adsabs.harvard.edu/abs/2015AIPC.1656e0003G
Static spacetimes of four dimensional Einstein-Maxwell-Higgs theory with
general couplings can be thought of as static black holes and static
domain walls. In this paper, we study a static spacetime where the
two-surface is in general to be Einstein. In particular, if the scalars
are frozen everywhere in the spacetime which can be viewed as the
critical points of the black hole and the scalar potentials, then the
geometries are of a constant scalar curvature which in general are not
Einstein describing charged black holes. Whereas, in the case of charged
domain walls the scalars are frozen in the asymptotic region describing
spaces of constant scalar curvature.Hasanuddin, A., A.: Stationary axisymmetric four dimensional space-time endowed with Einstein metric
http://adsabs.harvard.edu/abs/2015AIPC.1656e0002H
In this paper, we construct Ernst equation from vacuum Einstein field
equation for both zero and non-zero cosmological constant. In
particular, we consider the case where the space-time admits
axisymmetric using Boyer-Lindquist coordinates. This is called
Kerr-Einstein solution describing a spinning black hole. Finally, we
give a short discussion about the dynamics of photons on Kerr-Einstein
space-time.Hendro, V., S.: Determination of detector rotation angle in the experiment based on the total internal reflection using an equilateral right angle prism
http://adsabs.harvard.edu/abs/2015AIPC.1656d0012H
We present a relation between incident angle and rotation angle detector
in the Total Internal Reflection (TIR) experiments when using a right
angle prism. In the TIR method, the light coming toward the prism will
experience reflection and out of the prism at a certain angle direction.
Results of analysis of the geometry and Snell's law shows that the
angular position of the detector is not only determined by the angle of
incidence of light alone but also by the size of the prism and the
detector position from the rotation axis of goniometer. The experimental
results show relation between the angle of detector and angle of
goniometer. When the prism rotated 45 °, position of goniometer
detector is 2×45 °. However, when the prism rotated at an
angle instead of 45 °, detector position µ is not always equal
to twice the rotation angle goniometer ψ, so that this relationship
needs to be corrected. This correction is also determined by the value
of the refractive index of the prism is used. By knowing the
relationship between detector position and the incident angle of light,
this formulation can be used to control the position of the sample and
the detector in the experiments based on ATR.Suprijadi, P., I. R.: Developing stereo image based robot control system
http://adsabs.harvard.edu/abs/2015AIPC.1656d0011S
Application of image processing is developed in various field and
purposes. In the last decade, image based system increase rapidly with
the increasing of hardware and microprocessor performance. Many fields
of science and technology were used this methods especially in medicine
and instrumentation. New technique on stereovision to give a 3-dimension
image or movie is very interesting, but not many applications in control
system. Stereo image has pixel disparity information that is not existed
in single image. In this research, we proposed a new method in wheel
robot control system using stereovision. The result shows robot
automatically moves based on stereovision captures.Indrasari, W.: Development of an AC power source for CSEM method using full-bridge switching configuration
http://adsabs.harvard.edu/abs/2015AIPC.1656d0008I
The electromagnetic (EM) method has been widely used in geophysical
surveys. It is a non-destructive method that utilizes electromagnetic
waves in characterizing subsurface profiles. Generally, EM method can be
divided into passive EM and active EM. The passive EM uses the natural
electromagnetic field sources, while the active EM or Controlled Source
EM (CSEM) uses artificial source to generate electromagnetic wave. In
this paper, we present the development of AC power source for CSEM
transmitter. As the power source we used AC source with sine wave
signal. To satisfy a high power and high voltage in the equipment, we
used the full-bridge configuration switching. It works on 990 Hz maximum
frequency, and can deliver maximum current of 1.9 A at 620 V. The
switching is controlled by microcontroller using Pulse Width Modulation
(PWM) and the driver of inverter is built using IGBT. The output
frequency can be varied from 1 Hz to 990 Hz. For varied frequencies the
harmonic distortion is different due to switching speed. As frequency
increase the harmonic distortion also increase. We found that the total
harmonic distortion can be reduced to 1 % at the output with 330 Hz.Munir, M. M.: Development of microcontroller based water flow measurement
http://adsabs.harvard.edu/abs/2015AIPC.1656d0007M
A digital instrument for measuring water flow was developed using an
AT89S52 microcontroller, DS1302 real time clock (RTC), and EEPROM for an
external memory. The sensor used for probing the current was a propeller
that will rotate if immersed in a water flow. After rotating one
rotation, the sensor sends one pulse and the number of pulses are
counted for a certain time of counting. The measurement data, i.e. the
number of pulses per unit time, are converted into water flow velocity
(m/s) through a mathematical formula. The microcontroller counts the
pulse sent by the sensor and the number of counted pulses are stored
into the EEPROM memory. The time interval for counting is provided by
the RTC and can be set by the operator. The instrument was tested under
various time intervals ranging from 10 to 40 seconds and several
standard propellers owned by Experimental Station for Hydraulic
Structure and Geotechnics (BHGK), Research Institute for Water Resources
(Pusair). Using the same propellers and water flows, it was shown that
water flow velocities obtained from the developed digital instrument and
those found by the provided analog one are almost similar.Munir, M. M.: Design of 3D scanner for surface contour mapping by ultrasonic sensor
http://adsabs.harvard.edu/abs/2015AIPC.1656d0006M
Surface mapping systems have attracted great attention due to their
potential applications in many areas. In this paper, a simple 3D scanner
based on ultrasonic sensor was designed for mapping a contour of object
surface. The scanner using an SRF02 ultrasonic sensor, a microcontroller
and radio frequency (RF) module to collect coordinates of object surface
(point cloud), and sent data to computer. The point cloud collection
process was performed by moving two ultrasonic sensors in y and x
directions. Both sensors measure a distance from an object surface to a
reference point of each sensor. The measurement results represent the
point cloud of object surface and the data will be sent to computer via
RF module. The point cloud then converted to 3D model using MATLAB. It
was found that the object contours can be reconstructed very well by the
developed 3D scanner system.Hartono, A.: Effect of mechanical treatment and fabrication temperature on piezoelectric properties of PVDF film
http://adsabs.harvard.edu/abs/2015AIPC.1656c0018H
Piezoelectric properties are one of the electrical properties that will
arise in case of mechanical disturbances. One of polymer that can
produce the greatest piezoelectric properties is poly vinylidene
fluoride (PVDF). Piezoelectric properties of PVDF can be improved by
mechanical treatment on the varying film thickness and the temperature.
PVDF film has produced by roll hot press tool. Furthermore, PVDF films
were characterized by XRD, IR and I-V meter. We have been obtained an
increase piezoelectric properties of PVDF films that characterized by
increasing β fraction. We get β fraction was 63.63%, 66.35%
and 71.60% for temperatures of 140, 150 and 160°C, respectively at
film thickness of 13 µm. In addition, We have gained β
fraction for the thickness of 15, 13 and 8 µm are 64.60%, 66.35%
and 69.00%, respectively at temperature of 140°C. This is due to the
increasing temperature and decreasing film thickness then more dipoles
are oriented in PVDF films. These results indicate that mechanical
treatment caused difference film thickness and temperature of PVDF film
has a strong influence on the piezoelectric properties.Budiyono, A.: Maxwell speed distribution and analogue Hawking-Unruh temperature in an ontological model of a Harmonic oscillator ground state
http://adsabs.harvard.edu/abs/2015AnPhy.354..556B
Within an ontological (hidden variable) model of quantum fluctuation,
one can discuss the actual properties of a system regardless
(independent) of measurement. Here we apply an ontological model
proposed earlier to investigate a Harmonic oscillator in the quantum
mechanical ground state. We first show that the actual speed of the
oscillator fluctuates randomly following the Maxwell-Boltzmann
distribution. On the other hand, the actual energy obeys a broad Gamma
distribution with an average 3 ħ ω / 2, where ω is
the classical angular frequency, so that one may conclude that the
outcome of a single energy measurement reveals the average of the actual
energy. The distribution of actual speed (energy) thus formally
resembles the distribution of speed (energy) of an ideal gas in thermal
equilibrium of temperature T<SUB>g</SUB> = ħ ω / 2. We
shall then argue that T<SUB>g</SUB> can be written in a form analogous
to the Hawking temperature for a Schwarzschild black hole in which the
average distance of the oscillator from the origin plays the analogous
role of the radius of the black hole event horizon. It can also be
written in a form analogous to the Unruh temperature experienced by a
body moving with a uniform acceleration. In the analogy, the oscillator
suffers an effective acceleration which balances the attractive force of
the trapping Harmonic potential, thus keeps its average position away
from the origin.Triyanta, S., D.: Field localization in a modified Randall-Sundrum brane model
http://adsabs.harvard.edu/abs/2014AIPC.1617...96T
We consider a modified Randall-Sundrum metric model in a
five-dimensional spacetime. The metric is conformally flat, has an
exponential warp factor, and is physically distinct from the original
Randall-Sundrum metric model. Massless scalar fields are localized on
the brane for decreasing warp factor while massive scalar fields are
localized on the brane for either decreasing or increasing warp factors.
There is an upper bound mass for the decreasing warp factor and there
are two possible different masses for the increasing warp factor. For a
constant value of the fifth component of the vector matter field we
obtain a possible localization for massless vector fields, but not for
massive vector fields. Both massless and massive spinor fields
unfortunately are not localized on the brane.Viridi, S.: Development of single fluid volume element method for simulation of transient fluid flow in self-siphons
http://adsabs.harvard.edu/abs/2014AIPC.1615..199V
A simple model for transient flow in a narrow pipe is presented in this
work. The model is simply derived from Newton's second law of motion. As
an example it is used to predict flow occurrence in two forms of
self-siphon, which are inverted-U and M-like forms. Simulation for
system consists only a vertical pipe is also presented since it is
actually part of the both siphon systems. For the simple systems the
model can have good predictions but for the complex system it can only
have 89.6 % good prediction. Its simplicity can be used to illustrate
how the interface between fluid and air, single fluid volume element
(SFVE) moves along the siphon. The method itself is named as SFVE
method.Suroso, A.: Vanishing Dimensions in Four Dimensional Cosmology with Nonminimal Derivative Coupling of Scalar Field
http://adsabs.harvard.edu/abs/2014arXiv1407.6624S
We discussed a mechanism that allows the universe to start from lower
dimension ($d < 4$) in its very early era and evolves to four
dimension at the end of the process. The mechanism is generated by a
nonminimal derivative coupling of scalar field, where derivative terms
of the scalar field coupled to curvature tensor. We solve the Einstein
equations for a limit of large and nearly constant Hubble parameter and
analyze the evolution of the Hubble parameter in this limit. The
lower-dimensionality in early universe has advantages in the context of
unification theory.A. S., M. R.: Modeling of blood vessel constriction in 2-D case using molecular dynamics method
http://adsabs.harvard.edu/abs/2014AIPC.1589..404A
Blood vessel constriction is simulated with particle-based method using
a molecular dynamics authoring software known as Molecular Workbench
(WM). Blood flow and vessel wall, the only components considered in
constructing a blood vessel, are all represented in particle form with
interaction potentials: Lennard-Jones potential, push-pull spring
potential, and bending spring potential. Influence of medium or blood
plasma is accommodated in plasma viscosity through Stokes drag force. It
has been observed that pressure p is increased as constriction c is
increased. Leakage of blood vessel starts at 80% constriction, which
shows existence of maximum pressure that can be overcome by vessel wall.Hartono, A.: Effect of roll hot press temperature on crystallite size of PVDF film
http://adsabs.harvard.edu/abs/2014AIPC.1589..217H
Fabrication PVDF films have been made using Hot Roll Press. Preparation
of samples carried out for nine different temperatures. This condition
is carried out to see the effect of Roll Hot Press temperature on the
size of the crystallite of PVDF films. To obtain the diffraction pattern
of sample characterization is performed using X-Ray Diffraction.
Furthermore, from the diffraction pattern is obtained, the calculation
to determine the crystallite size of the sample by using the Scherrer
equation. From the experimental results and the calculation of
crystallite sizes obtained for the samples with temperature 130 °C
up to 170 °C respectively increased from 7.2 nm up to 20.54 nm.
These results show that increasing temperatures will also increase the
size of the crystallite of the sample. This happens because with the
increasing temperature causes the higher the degree of crystallization
of PVDF film sample is formed, so that the crystallite size also
increases. This condition indicates that the specific volume or size of
the crystals depends on the magnitude of the temperature as it has been
studied by Nakagawa.Muid, A.: Development of a low cost potentiostat using ATXMEGA32
http://adsabs.harvard.edu/abs/2014AIPC.1589..124M
Potentiostat is principal devices in modern electrochemical research
especially in the investigation of mechanism reaction which associated
with the redox chemistry reaction and other chemical phenomena. Several
applications measurement is developed based on this tool such as
measurement of sample concentrations, quality test of food and medicine,
environmental monitoring and biosensors or development of a protein
sensor. We have developed a low cost, simple and portable potentiostat
with a relatively small dimension. TLC2264 op-amp and ATMEGA32
microcontroller is used to build controller circuit system. Range
potential measurement of this tool is between -1600mV and +1600mV within
frequency range 1Hz - 1 kHz. The developed instrument has been tested
for measuring samples using different voltammetry techniques, like
cyclic, square wave, and linear sweep with relative error under 2.5%.Ekawita, R.: A simple and inexpensive vertical deformation measurement system for soil compression tests
http://adsabs.harvard.edu/abs/2014AIPC.1589..104E
A simple and low cost system to measure vertical deformations during
soil compression tests was successfully developed. It consisted of a
vertical deformation sensor, a signal conditioner, an analog to digital
converter (ADC), a microcontroller, and a display. The vertical
deformation sensor was made from a rotary potentiometer. The deformation
was converted to an analog voltage output by the rotary potentiometer. A
signal conditioner was required to make the analog voltage output ready
for being used by the ADC. The ADC then converts the analog voltage
output into digital one. The digital data was later processed by the
microcontroller and finally readout by the display. The resolution of
the developed system was about 0.038 mm. The calibration was done by
comparing the vertical deformations obtained from the potentiometer with
those measured by a micrometer. It was found that the developed system
can measure a maximum vertical deformation of about 40 mm.Ming, K.: Propagators and vertices of scalar-gravity interaction in the teleparallel theory of gravitation
http://adsabs.harvard.edu/abs/2014AIPC.1589...99M
In the teleparallel theory of gravitation, interaction between scalar
field and gravitational field are described by a scalar-gravity
Lagrangian. Gravitational field are introduced to the scalar field
Lagrangian using coupling prescription. From the bilinear term of this
Lagrangian we get the propagator of gravitational field after
introducing the gauge fixing term similar with Lorenz gauge. Then, by
writing a tetrad field in the form of trivial term and gravity term, we
derived the corresponding vertices from the interaction terms. There are
six kind vertices derived in this paper.Nurhayati, H., W.: Simulation of fluid flow in a U-shape self-siphon and its working space
http://adsabs.harvard.edu/abs/2014AIPC.1589...95N
Observation of occurrence of fluid flow in a U-shape self-siphon has
been conducted experimentally and in simulation. Water is chosen as the
fluid. In experiment, three kinds of pipe inner diameter d (4, 6, and 8
mm) have been used to find its influence to the flow occurrence. The
U-shape self-siphon has three different segments, where length of the
first segment plays important role for the flow occurrence. The segment
has length L + h, which stands for length above and below water surface
in water container, respectively. In simulation, head (interface between
water and air in the siphon) equation of motion is solved numerically
using Euler method. Working spaces of L against h for several d have
been produced from simulation and experiment, and they show a good
agreement to each other. It can be observed that the relation between L
and minimum h for flow to occur becomes more linear for larger inner
diameter d.Hartanto, A.: On the near-brane will-be-SimplestLittleHiggs scalar in Scherk-Schwarz breaking of 5-dimensional SU(6) GUT as a source of exotic multi-scalar Higgs
http://adsabs.harvard.edu/abs/2014AIPC.1589...81H
Special condition of Scherk-Schwarz and Orbifold
S<SUP>1</SUP>/Z<SUB>2</SUB> breakings brings about both the
weakly-coupled SU(6) Baby Higgs and the strongly-coupled
will-be-SimplestLittleHiggs scalar in the near-brane of
SU(3)×SU(3)×U(1). The later produces SU(3) VEVs and Simplest
Little-like Higgs after triplet-triplet splitting and, under Uncertainty
Principles with Coleman-Weinberg potential, the second yields finally
exotic Higgses, the scalar-pair and 3-scalar Higgses in the so-called
non-asymptotic and asymptotic states produced successively via
one-by-one and collective (just-one) one-time breakings.Mumpuni, E. S.: Oscillation signature from multi-wavelength analysis on solar chromosphere
http://adsabs.harvard.edu/abs/2014AIPC.1589....7M
In this work, we investigate how the solar chromosphere responds to the
photospheric dynamics by using tomography study, implementing
multiwavelength analysis observations obtained from Dutch Open
Telescope. By using high resolution, high-quality, simultaneous image
sequences of multi-wavelength data, we try to obtain the oscillation
signature that might play important role on chromospheric dynamic by
using H-alpha (Hα) as primary diagnostic tool.Djamal, M.: Preface: 4th International Conference on Mathematics and Natural Sciences (ICMNS 2012)
http://adsabs.harvard.edu/abs/2014AIPC.1589....1D
Not AvailableViridi, S.: Lup-Like Cantilever Beam for Small Deflection
http://adsabs.harvard.edu/abs/2014arXiv1402.4769V
A lup-like cantilever beam are discussed in this work. For small
deflection it can be approximated as a spring-mass system with certain
spring constant whose effective mass is larger than the usual constant
rectangular cross section cantilever beam. A new parameter $\beta$ is
introduced to relates some the properties of lup-like cantilever beam to
the usual one. Influence of beam witdh $B_0$ and head width $B_t$ to
value of $\beta$ is also presented.Djamal, M.: Measuring Quasi-Static and Kinetic Coefficient of Restitution Simultaneously using Levitation Mass Method: Experiment and Simulation
http://adsabs.harvard.edu/abs/2014arXiv1402.2153D
Observed peaks in a levitation mass method (LMM), which are usually
addressed to signal noise, are discussed in this work. This phenomenon
arises due to bounce from plate which is collided by moving part in LMM
measurement system. Normally, the moving part and the plate stick very
good after their first contact. Simulation using molecular dynamics (MD)
method is performed to prove the bounce prognosis.Suprijadi, P., S. H.: Volume estimation of brain abnormalities in MRI data
http://adsabs.harvard.edu/abs/2014AIPC.1587..101S
The abnormality of brain tissue always becomes a crucial issue in
medical field. This medical condition can be recognized through
segmentation of certain region from medical images obtained from MRI
dataset. Image processing is one of computational methods which very
helpful to analyze the MRI data. In this study, combination of
segmentation and rendering image were used to isolate tumor and stroke.
Two methods of thresholding were employed to segment the abnormality
occurrence, followed by filtering to reduce non-abnormality area. Each
MRI image is labeled and then used for volume estimations of tumor and
stroke-attacked area. The algorithms are shown to be successful in
isolating tumor and stroke in MRI images, based on thresholding
parameter and stated detection accuracy.Suprijadi, S., M. R. A.: Application of computational physics: Blood vessel constrictions and medical infuses
http://adsabs.harvard.edu/abs/2014AIPC.1587....3S
Application of computation in many fields are growing fast in last two
decades. Increasing on computation performance helps researchers to
understand natural phenomena in many fields of science and technology
including in life sciences. Computational fluid dynamic is one of
numerical methods which is very popular used to describe those
phenomena. In this paper we propose moving particle semi-implicit (MPS)
and molecular dynamics (MD) to describe different phenomena in blood
vessel. The effect of increasing the blood pressure on vessel wall will
be calculate using MD methods, while the two fluid blending dynamics
will be discussed using MPS. Result from the first phenomenon shows that
around 80% of constriction on blood vessel make blood vessel increase
and will start to leak on vessel wall, while from the second phenomenon
the result shows the visualization of two fluids mixture (drugs and
blood) influenced by ratio of drugs debit to blood debit.Djamal, M.: Determination of an Unknown Volume in the Material Based on Gamma Ray Scattering Using GEANT4 Simulation
http://adsabs.harvard.edu/abs/2014JPSCP...1a4030D
The energy spectrum characteristic detected as the result of gamma ray
photon interaction with a material has an information that can be used
to identify the material characteristics. Using a Monte Carlo code of
GEANT4, the simulation study has been conducted for 0.662 MeV
scattered energy from the acrylic block to investigate the existence of
pores in the acrylic block. In order to verify the validity, the
simulation result was compared to the measurement data. Both of the
simulation prediction and measurement show the similarities of the
detected spectrum.Suprijadi: Computational Study on Melting Process Using Smoothed Particle Hydrodynamics
http://adsabs.harvard.edu/abs/2014JMPh....5..112S
Not AvailableJousset, P. G.: Micro-seismic earthquakes characteristics at natural and exploited hydrothermal systems in West Java, Indonesia
http://adsabs.harvard.edu/abs/2013AGUFM.S33D2461J
The assessment of geothermal resources requires the understanding of the
structure and the dynamics of geothermal reservoirs. We deployed a
multidisciplinary geophysical network around geothermal areas in the
south of Bandung, West Java, Indonesia. The first deployment included a
network of 30 broadband and 4 short-period seismic stations with
Güralp and Trillium sensors (0.008 - 100 Hz) since October 2012. In
a second step, we extended the network in June 2013 with 16 short-period
(1 Hz) seismometers. We describe the set-up of the seismic networks and
discuss first observations and results. The co-existence of a large
variety of intense surface manifestations like geysers, hot-steaming
grounds, hot water pools, and active volcanoes suggest an intimate
coupling between volcanic, tectonic and hydrothermal processes in this
area. Preliminary location of earthquakes is performed using a
non-linear algorithm, which allows us to define at least 3 seismic
clusters. We discuss this seismic pattern within the geothermal fields.Viridi, S.: Model and Visualization of Ray Tracing using JavaScript and HTML5 for TIR Measurement System Equipped with Equilateral Right Angle Prism
http://adsabs.harvard.edu/abs/2013arXiv1310.3335V
Trace of ray deviated by a prism, which is common in a TIR (total
internal reflection) measurement system, is sometimes difficult to
manage, especially if the prism is an equilateral right angle prism
(ERAP). The point where the ray is reflected inside the right-angle
prism is also changed as the angle of incident ray changed. In an ATR
(attenuated total reflectance) measurement system, range of this point
determines size of sample. Using JavaScript and HTML5 model and
visualization of ray tracing deviated by an ERAP is perform and reported
in this work. Some data are obtained from this visualization and an
empirical relations between angle of incident ray source \theta_S, angle
of ray detector hand \theta_D, and angle of ray detector \theta'_D are
presented for radial position of ray source R_S, radial position of ray
detector R_D, height of right-angle prism t, and refractive index of the
prism n. Keywords: deviation angle, equilateral right angle prism, total
internal reflection, JavaScript, HTML5.Jones, P.: Field localization and mass generation in an alternative 5-dimensional brane model
http://adsabs.harvard.edu/abs/2013arXiv1309.4790J
This proceedings is based on a talk given at the APS DPF 2013 on an
alternative 5-dimensional brane world model which is related to but has
some physically distinct features from the Randall-Sundrum brane world
model. The spin dependent localization of 5D fields for the alternative
model are different and in some ways superior to the original Randall-
Sundrum Model. The alternative model also exhibits a cutoff in the
lo-calization of massive scalar fields not seen in the Randall-Sundrum
and includes a self consistent mass prediction of two possible scalar
bosons. Setting the warping factor in the new model consistent with a
126 GeV localized scalar boson predicts the existence of a second scalar
boson at 177 GeV. This second scalar boson could be localized or non
localized depending on the type of warping factor.Suprijadi: 3D Simulation of Dam-break effect on a Solid Wall using Smoothed Particle Hydrodynamics
http://adsabs.harvard.edu/abs/2013arXiv1309.3632S
Dam is built for water supply, water flow or flooding control and
electricity energy storage, but in other hand, dam is one of the most
dangerous natural disaster in many countries including in Indonesia. The
impact of dam break in neighbour area and is huge and many flooding in
remote area, as happen in Dam Situ Gintung in Tangerang (close to
Jakarta) in 2009. Smoothed Particle Hydrodynamics (SPH), is one of
numerical method based on Lagrangian grid which is ap- plied in
astrophysical simulation may be used to solve the simulation on dam
break effect. The development of SPH methods become alternative methods
to solving Navier Stokes equation, which is main key in fluid dynamic
simulation. In this paper, SPH is developed for supporting solid par-
ticles in use for 3D dam break effect (3D-DBE) simulation. Solid
particle have been treated same as fluid particles with additional
calculation for converting gained position became translation and
rotation of solid object in a whole body. With this capability, the
result of 3D-DBE simulation has been varies and interesting. The goals
of this simulation is for analyse fluid and solid particle interaction
by using two different scenario. The first scenario relation between
height of fluid to a solid wall barrier and second scenario, is to study
relation between solid wall and its collapse time by dam break. The
results show sliding distance of a solid wall is depend on a fluid
height, and relation between fluid heght and wall dimension will be
discussed too in this paper.Naa, C.: Simulation of Temperature Distribution In a Rectangular Cavity using Finite Element Method
http://adsabs.harvard.edu/abs/2013arXiv1309.3504N
This paper presents the study and implementation of finite element
method to find the temperature distribution in a rectangular cavity
which contains a fluid substance. The fluid motion is driven by a sudden
temperature difference applied to two opposite side walls of the cavity.
The remaining walls were considered adiabatic. Fluid properties were
assumed incompressible. The problem has been approached by
two-dimensional transient conduction which applied on the heated
sidewall and one-dimensional steady state convection-diffusion equation
which applied inside the cavity. The parameters which investigated are
time and velocity. These parameters were computed together with boundary
conditions which result in temperature distribution in the cavity. The
implementation of finite element method was resulted in algebraic
equation which is in vector and matrix form. Therefore, MATLAB programs
used to solve this algebraic equation. The final temperature
distribution results were presented in contour map within the region.Naa, C.: Novel Giant Magnetoresistance Model using Multiple Barrier Potential
http://adsabs.harvard.edu/abs/2013arXiv1309.1006N
This paper proposes a new model for Giant Magnetoresistance (GMR) and
calculates its typical graph qualitatively. The model foundation is the
microscopic mechanism in GMR, where the GMR effect can be explained by
intrinsic and extrinsic potential. The potentials are spin-dependent.
The potentials determine the transmission probability then it will give
conductance value. Here, the multiple barrier potential model is
proposed as the new GMR model. The transmission probability is
determined using transfer matrix method. It was found that this model is
fit qualitatively with the typical GMR graph.Triyanta, S., Zen, F. P.: Solutions of Dirac's equation in Bianchi type I spacetime in teleparallel gravity theory
http://adsabs.harvard.edu/abs/2013AIPC.1555...57T
Different from the Einstein's general relativity which describes gravity
through the curvature of a spacetime, teleparallel gravity theory
depicts gravity through the Weitzenbock torsion of the spacetime. This
leads to different expressions of the dynamical equations of fundamental
fields, including Dirac fields, in both theories. Here we derive two
types of solutions of the Dirac's equations for the case of isotropic
Bianchi type I spacetime. The first is an oscillatory solution, i.e. the
time dependence of the solution is chosen to be sinusoidal. Here we
derive the general form of space coordinate dependent part of the
solution. The second type of solution is a solution where the space
coordinate part of solution is chosen to be sinusoidal. Here we derive
the time dependence of the solution for the case of exponential scale
factor.Jin, T.: High-speed impact test using an inertial mass and an optical interferometer
http://adsabs.harvard.edu/abs/2013RScI...84g5116J
A high-speed impact testing method for evaluating mechanical properties
of materials is proposed using an inertial mass and a dual
beat-frequencies laser Doppler interferometer (DB-LDI). In this method,
an inertial mass levitated using an aerostatic linear bearing is made to
collide with the material being tested at a high initial velocity.
During the collision, the velocity of the mass, which is even higher
than the critical velocity (±0.56 m/s) defined by the frequency
difference of the Zeeman laser, is accurately measured using the DB-LDI.
The position, acceleration, and impact force of the mass are calculated
from the measured velocity. Using the proposed method, the mechanical
properties of a visco-elastic material under a high-speed impact loading
condition can be accurately evaluated.Jones, P.: Field localization and the Nambu-Jona-Lasinio mass generation mechanism in an alternative five-dimensional brane model
http://adsabs.harvard.edu/abs/2013PhRvD..88b5048J
We consider a five-dimensional brane world model with a single brane
which is distinct from the well known Randall-Sundrum model. We discuss
the similarities and differences between our brane model and the
Randall-Sundrum brane model. In particular we focus on the localization
of five-dimensional fields with different spins—spin 0, spin 1/2,
and spin 1—to the brane, and a self-consistent mass-generation
mechanism. We find that the brane model studied here has different (and
in some cases superior) localization properties for fields/particles
with different spins to the brane, as compared to the original
five-dimensional brane models. In addition this alternative
five-dimensional brane model exhibits a self-generation mechanism which
recalls the self-consistent approach of Nambu and Jona-Lasinio.Gunara, B. E.: Some Aspects of Spherical Symmetric Extremal Dyonic Black Holes in 4d N = 1 Supergravity
http://adsabs.harvard.edu/abs/2013IJMPA..2850084G
In this paper, we study several aspects of extremal spherical symmetric
black hole solutions of four-dimensional N = 1 supergravity coupled to
vector and chiral multiplets with the scalar potential turned on. In the
asymptotic region, the complex scalars are fixed and regular which can
be viewed as the critical points of the black hole and the scalar
potentials with vanishing scalar charges. It follows that the asymptotic
geometries are of a constant and nonzero scalar curvature which are
generally not Einstein. These spaces could also correspond to the near
horizon geometries which are the product spaces of a two anti-de Sitter
surface and the two sphere if the value of the scalars in both regions
coincide. In addition, we prove the local existence of nontrivial radius
dependent complex scalar fields which interpolate between the horizon
and the asymptotic region. We finally give some simple
ℂ<SUP>n</SUP>-models with both linear superpotential and gauge
couplings.Rad, N.: Effect of circular Unruh radiation on bound nucleons and a possible answer to the Lithium 7 puzzle
http://adsabs.harvard.edu/abs/2013arXiv1307.3606R
In the shell model of nuclei, protons and neutrons move in a
phenomenological nuclear potential much in the same manner as electrons
move in Coulomb based potential in the shell model of atoms. As in the
atomic case, the protons and neutrons of certain nuclear energy levels
will have a non-zero orbital angular momentum (i.e. l =/= 0) and will
therefore experience a centripetal potential and a centripetal
acceleration. We advance the hypothesis, based on justification via the
path integral formalism, that if one associates an Unruh temperature
with this quantum centripetal acceleration then there is a potentially
experimentally observable effect on certain nuclei -- the shifting of
the naive expectations of the relative occupation of the ground and
lowest lying energy levels. In particular we find that this effect
should be most prominent in Li-7 nuclei. We speculate that this effect
of the Unruh temperature might offer an answer to the Li-7 problem in
Big Bang Nucleosynthesis.Irawati, P.: Population synthesis of cataclysmic variable star: I. A new methodology and initial study on the post common-envelope stage
http://adsabs.harvard.edu/abs/2013Ap%26SS.346...79I
We report the results of our population synthesis for post
common-envelope binaries by following the evolution of each system in
detail. Our main focus is a comparison with the white dwarf mass
distribution of post common-envelope systems from the Sloan Digital Sky
Survey. We employ a Monte Carlo method to choose the initial parameters
of the progenitors (primary mass, mass ratio and orbital period). Then
the evolution of the progenitor binary system is followed up to the
onset of the common-envelope phase, which usually occurs near the tip of
the giant branch or asymptotic giant branch. An approximate post-Helium
flash evolution for primary masses {≤}2.25 M_{⊙} is included. The
binary parameters before and after common-envelope phase are calculated
using the energy budget argument. In this paper we address the case of
α <SUB>CE</SUB>=1.0, which is the commonly adopted value to
calculate the common-envelope ejection. We consider a hydrogen-exhausted
core to define the core mass of the primary (white dwarf mass, M
<SUB>WD</SUB>) at the onset of common envelope phase. To obtain the
present-day M <SUB>WD</SUB> distributions, we assumed a constant star
formation rate. The distribution resulting from our population synthesis
shows a double peak profile for M <SUB>WD</SUB>, similar to previous
population syntheses and recent observational data. Our present
synthesis result could not reproduce the location of the low and high
mass peaks from the observations, but shows how a future synthesis can
be made to produce an M <SUB>WD</SUB> distribution which is closer to
observational data.Rendi, M.: Modeling Of Blood Vessel Constriction In 2-D Case Using Molecular Dynamics Method
http://adsabs.harvard.edu/abs/2013arXiv1306.6045R
Blood vessel constriction is simulated with particle-based method using
a molecular dynamics authoring software known as Molecular Workbench
(WM). Blood flow and vessel wall, the only components considered in
constructing a blood vessel, are all represented in particle form with
interaction potentials: Lennard-Jones potential, push-pull spring
potential, and bending spring potential. Influence of medium or blood
plasma is accommodated in plasma viscosity through Stokes drag force. It
has been observed that pressure p is increased as constriction c is
increased. Leakage of blood vessel starts at 80 % constriction, which
shows existence of maximum pressure that can be overcome by vessel wall.Gunara, B. E.: The rigid limit of N=2 supergravity
http://adsabs.harvard.edu/abs/2013arXiv1305.1903G
In this paper we review the rigid limit of N=2 supergravity coupled to
vector and hypermultiplets. In particular we show how the respective
scalar field spaces reduce to their global counterparts. In the
hypermultiplet sector we focus on the relation between the local and
rigid c-map.Suroso, A.: Cosmological model with nonminimal derivative coupling of scalar fields in five dimensions
http://adsabs.harvard.edu/abs/2013GReGr..45..799S
We study a nonminimal derivative coupling (NMDC) of scalar field, where
the scalar field is coupled to curvature tensor in the five dimensional
universal extra dimension model. We apply the Einstein equation and find
its solution. First, we consider a special case of pure free scalar
field without NMDC and we find that for static extradimension, the
solution is equivalent to the standard cosmology with stiff matter. For
a general case of pure free scalar field with NMDC, we find that the de
Sitter solution is the solution of our model. For this solution, the
scalar field evolves linearly in time. In the limit of small Hubble
parameter, the general case give us the same solution as in the pure
free scalar field. Finally, we perform a dynamical analysis to determine
the stability of our model. We find that the extradimension, if it
exist, can not be static and always shrinks with the expansion of four
dimensional spacetime.Akbar, F. T.: Bosonic Part of 4d N=1 Supersymmetric Gauge Theory with General Couplings: Local Existence
http://adsabs.harvard.edu/abs/2013arXiv1302.4212A
In this paper, we prove the local existence of the bosonic part of N=1
supersymmetric gauge theory in four dimensions with general couplings.
We start with the Lagrangian of the vector and chiral multiplets with
general couplings and scalar potential turned on. Then, for the sake of
simplicity, we set all fermions vanish at the level of equations of
motions, so we only have the bosonic parts of the theory. We apply
Segal's general theory to show the local existence of solutions of
equations of motions by taking Kahler potential to be bounded above by
U(n) symmetric Kahler potential and the first derivative of gauge
couplings to be at most linear growth functions.Suprijadi: Compression Stress Effect on Dislocations Movement and Crack propagation in Cubic Crystal
http://adsabs.harvard.edu/abs/2012arXiv1212.0041S
Fracture material is seriously problem in daily life, and it has
connection with mechanical properties itself. The mechanical properties
is belief depend on dislocation movement and crack propagation in the
crystal. Information about this is very important to characterize the
material. In FCC crystal structure the competition between crack
propagation and dislocation wake is very interesting, in a ductile
material like copper (Cu) dislocation can be seen in room temperature,
but in a brittle material like Si only cracks can be seen observed.
Different techniques were applied to material to study the mechanical
properties, in this study we did compression test in one direction.
Combination of simulation and experimental on cubic material are
reported in this paper. We found that the deflection of crack direction
in Si caused by vacancy of lattice,while compression stress on Cu cause
the atoms displacement in one direction. Some evidence of dislocation
wake in Si crystal under compression stress at high temperature will
reported.Sulaiman, A.: Dynamics of DNA breathing in the Peyrard-Bishop model with damping and external force
http://adsabs.harvard.edu/abs/2012PhyD..241.1640S
The impact of the damping effect and external forces on DNA breathing is
investigated within the Peyrard-Bishop model. In the continuum limit,
the dynamics of the breathing of DNA is described by the forced-damped
nonlinear Schrodinger equation and studied by means of the variational
method. The analytical solutions are obtained for special cases. It is
shown that the breather propagation is decelerated in the presence of a
damping factor without the external force, while the envelope velocity
and the amplitude increase significantly with the presence of external
force. It is particularly found that the higher harmonic terms are
enhanced when the periodic force is applied. It is finally argued that
the external force accelerates the DNA breathing.Sulaiman, A.: The thermal denaturation of the Peyrard-Bishop model with an external potential
http://adsabs.harvard.edu/abs/2012PhyS...86a5802S
The impact of various types of external potentials on the Peyrard-Bishop
DNA denaturation is investigated through the statistical mechanics
approach. The partition function is obtained using the transfer integral
method, and the stretching of hydrogen bonds is calculated using the
time-independent perturbation method. It is shown that all types of
external potentials accelerate the denaturation processes at lower
temperature. In particular, it is argued that the Gaussian potential
with infinitesimal width reproduces a constant force at one end of the
DNA sequence as was already done in some previous works.Sulaiman, A.: Dynamics of DNA bubble in viscous medium
http://adsabs.harvard.edu/abs/2012AIPC.1454..298S
The damping effect to the DNA bubble is investigated within the
Peyrard-Bishop model. In the continuum limit, the dynamics of the bubble
of DNA is described by the damped nonlinear Schrodinger equation and
studied by means of variational method. It is shown that the propagation
of solitary wave pattern is not vanishing in a non-viscous system.
Inversely, the solitary wave vanishes soon as the viscous force is
introduced.Djamal, M.: The low frequency 2D vibration sensor based on flat coil element
http://adsabs.harvard.edu/abs/2012AIPC.1454..182D
Vibration like an earthquake is a phenomenon of physics. The
characteristics of these vibrations can be used as an early warning
system so as to reduce the loss or damage caused by earthquakes. In this
paper, we introduced a new type of low frequency 2D vibration sensor
based on flat coil element that we have developed. Its working principle
is based on position change of a seismic mass that put in front of a
flat coil element. The flat coil is a part of a LC oscillator;
therefore, the change of seismic mass position will change its resonance
frequency. The results of measurements of low frequency vibration sensor
in the direction of the x axis and y axis gives the frequency range
between 0.2 to 1.0 Hz.Suroso, A.: Nonminimal derivative coupling in five dimensional universal extra dimensions and recovering the cosmological constant
http://adsabs.harvard.edu/abs/2012AIPC.1454...47S
We study a nonminimal derivative coupling (NMDC) of scalar field, where
the scalar field is coupled to curvature tensor in the five dimensional
universal extra dimension (UED) model. We choose an ansatz metric which
contain a homogenous extra spatial dimension and solve the Einstein
equation in the bulk. Under two assumptions concerning the scalar field
and scale factors, we get the de Sitter universe and recover the
cosmological constant from the coupling constant of NMDC. We also
discuss how the extra dimension evolve in time.Suroso, A.: Accelerating universe from nonminimal derivative coupling in 5D universal extra dimension
http://adsabs.harvard.edu/abs/2012AIPC.1450..338S
We study a nonminimal derivative coupling of scalar field, where the
scalar field is coupled to curvature tensor in the five dimensional bulk
in the context of universal extra dimension model. We apply the Einstein
equation in the bulk and show that the acelerated expanding solution for
the four dimensional scale factor a(t) is exist. Then, we study four
different cases of the solution which is correspond to four different
types of evolution of the extra dimension scale factor b.Wahyoedi, S. A.: Multi-centered metric on (n+1)-dimensional static spacetimes
http://adsabs.harvard.edu/abs/2012AIPC.1450..270W
In this paper, we construct explicitly a multi-centered metric in
(n+1)-dimensional static spacetimes which belong to a class of
(pseudo)-Riemannian manifolds. Our starting point is to embed an
n-dimensional complete manifold into an (n+1)-dimensional manifold which
admits a timelike Killing vector. Then, the scalar curvature depends on
the Laplace-Beltrami operator of the n-dimensional submanifold. This
operator is set to be equals to the linear combination of the
Dirac-delta function on the submanifold which can be thought of as
remove points on (n+1)-dimensional manifold. Using completeness of the
n-dimensional submanifold it can be shown that the solution does indeed
exist. As an example we give the explicit form for flat Euclidean
geometries, sphere, and hyperbolic geometries.Gunara, B. E.: Static spacetimes of constant scalar curvature of Einstein-Maxwell-Higgs theory in d >= 4 dimensions
http://adsabs.harvard.edu/abs/2012AIPC.1450..266G
In this paper we consider a class of static spacetimes which can be
viewed as the solution of d-dimensional Einstein-Maxwell-Higgs theory
with d ≥ 4 in which it consists of a gravity coupled to some Abelian
vector fields and real scalar fields with vanishing scalar potential.
Taking d is simply even and in order to get a consistent theory, the d -
2-dimensional submanifold has to be Einstein with constant
Λ<SUB>d-2</SUB>. Furthermore, if we freeze the scalar fields in
particular regions, then we have a static spacetime whose metric depends
on Λ<SUB>d-2</SUB> and Ricci scalar is constant. These generalize
our previous results in static domain walls and black holes in four
dimensions.Viridi, S.: Segmented self-siphon: Experiments and simulations
http://adsabs.harvard.edu/abs/2012AIPC.1450..190V
Observation of fluid flow in a segmented self-siphon has been conducted
experimentally and a model using molecular dynamics method is used to
study the phenomenon in simulation. Influence of number of parts used in
vertical straight segments observed in the simulation is nearly similar
to the result observed in experiment. Mismatch error between experiment
and simulation results, in predicting whether water can flow in a
configuration of segmented a self-siphon or not, has been found about
10.4 %. During the flow through the self-siphon water velocity
decreases, especially in the semi-circle bends.Gunara, B. E.: Spherical Symmetric Dyonic Black Holes and Vacuum Geometries in 4 D N=1 Supergravity on Kähler-ricci Soliton
http://adsabs.harvard.edu/abs/2012RpMP...69..281G
In this paper we consider several aspects of dyonic non-supersymmetric
black holes in fourdimensional N = 1 supergravity coupled to chiral and
vector multiplets. The scalar manifold can be considered as a
one-parameter family of Kähler manifolds generated by a
Kähler-Ricci flow equation. This setup implies that we have a
family of dyonic non-supersymmetric black holes deformed with respect to
the flow parameter related to the Kähler-Ricci soliton, which
possibly controls the nature of black holes, such as their asymptotic
and near horizon geometries. We mainly consider two types of black
holes, namely a family of dyonic Reissner-Nordströmlike black holes
and Bertotti-Robinson-like black holes where the scalars are freezing
all over spacetime and at the horizon, respectively. In addition, the
corresponding vacuum structures for such black holes are also discussed
in the context of Morse-(Bott) theory. Finally, we give some simple
CP-models whose superpotential and gauge couplings have a linear form.Hartanto, A.: Near-Brane SU(6)-ORIGIN Higgs in Scherk-Schwarz Breaking of Five-Dimensional SU(6) GUT
http://adsabs.harvard.edu/abs/2012IJMPA..2750035H
The symmetry breaking of five-dimensional SU(6) GUT is realized by
Scherk-Schwarz mechanisms through trivial and pseudo nontrivial orbifold
S<SUP>1</SUP>/Z<SUB>2</SUB> breakings to produce dimensional
deconstruction 5D SU(6) → 4D SU(6). The latter also induces
near-brane weakly-coupled SU(6) Baby Higgs to further break the symmetry
into SU(3)<SUB>C</SUB> ⊗ SU(3)<SUB>H</SUB> ⊗
U(1)<SUB>C</SUB>. The model successfully provides a scenario of the
origin of (Little) Higgs from GUT scale, produces the (intermediate and
light) Higgs boson with the most preferred range and establishes
coupling unification and compactification scale correctly.Munir, M. M.: Morphology Controlled Electrospun Nanofibers for Humidity Sensor Application
http://adsabs.harvard.edu/abs/2011AIPC.1415..223M
Development of various morphologies such as beads, beaded fibers, and
pure fibers, and their potential application for humidity sensor by
electrospinning of polymer/composites was described. In order to produce
uniform nanofibers with high reproducibility, a controlled current
electrospinning system was utilized. It was found that the solution
concentration plays a significant role in bead/fiber formation.
Furthermore, it can be observed that fiber diameter of beaded-fiber was
smaller than pure fiber. It is hopes that by controlling morphology of
composites fiber, the optimal condition for obtaining the high
performance humidity sensor could be attained.Aliah, H.: Optimization of Coating Temperature of TiO2 Nanoparticles on the Polypropylene Copolymer Surface for Photodegradation of Methylene Blue
http://adsabs.harvard.edu/abs/2011AIPC.1415..155A
TiO<SUB>2</SUB> nanoparticles have been coated on the polypropylene (PP)
copolymers using a milling method with temperature controller
modification. These experiments were carried out at different milling
temperature: 100 °C, 110 °C, 120 °C and 130 °C for 90
minute milling time for each experiment. Photocatalytic degradation of
methylene blue (MB) was investigated using TiO<SUB>2</SUB> coated PP
copolymer which floats on the MB solution and illuminated under sunlight
for 36 hours. It was found that TiO<SUB>2</SUB> coated PP polymer at
temperature of 100 °C resulted in optimum decomposition of MB
solution. The concentration of MB in a test solution after 18 hours of
exposure to the sun was 15.42%. The reaction rate constants (k) and the
half-reaction (t<SUB>1/2</SUB>) in the MB photodegradation using the
catalysts with a coating temperature of 100 °C, are 0.106
hours-<SUP>1</SUP> and 6.53 hours, respectively. This coated material is
very potential for repeated use to purify bulk water in high sunlight
intensity region.Sulaiman, A.: Statistical Mechanics of Davydov-Scott Protein Model in Thermal Bath
http://adsabs.harvard.edu/abs/2011pchm.conf..661S
The Davydov-Scott monomer contacting with thermal bath is investigated
using Lindblad open quantum system formalism. The Lindblad equation is
discussed through path integral method. It is found that the
environmental effects contribute destructively to the specific heat, and
large interaction between amide-I and amide-site is not prefered for a
stable Davydov-Scott monomer.Hartanto, A.: Proton Decay in 5D-SU(6) GUT with Orbifold S1/Z2 Breaking in Scherk-Schwarz Mechanism
http://adsabs.harvard.edu/abs/2011pchm.conf..544H
Proton decay within 5-dimensional SU(6) GUT with orbifold
S<SUP>1</SUP>/Z<SUB>2</SUB> breaking is investigated using
Scherk-Schwarz mechanism. It is shown that in the model neither
leptoquark like heavy gauge bosons nor violation of baryon number
conservation are allowed due to the orbifold breaking parity splitting.
These results prevent too short proton lifetime within the model.Djamal, M.: Competition between Thickness and Electrical Conditioning Influence in Enhancing Giant Magnetoresistance Ratio for NiCoFe/Alq3/NiCoFe Spin Valve
http://adsabs.harvard.edu/abs/2011arXiv1110.2066D
Spacer thickness and electrical conditioning have their own influence in
enhancing giant magnetoresistance (GMR) ratio. At some condition one
factor can override the other as reported by experiment results. An
empiric model about competition about these two factors is discussed in
this work. Comparison from experiment results to validate the model are
also shown and explained. A formulation is proposed to extend the
existing one that now accommodates both spacer thickness and electrical
conditioning in one form.Djamal, M.: Giant Magnetoresistance Effect in Organic Material and Its Potential for Magnetic Sensor
http://adsabs.harvard.edu/abs/2011arXiv1110.1123D
Giant magnetoresistance (GMR) material has great potential as next
generation magnetic field sensing devices, have magnetic properties and
high electrical potential to be developed into various applications such
as: magnetic field sensor measurements, current measurements, linear and
rotational position sensor, data storage, head recording, and
non-volatile magnetic random access memory (MRAM). Today, the new GMR
materials based on organic material obtained after allowing for Organic
Magnetoresistance (OMAR) was found in OLEDs (organic light-emitting
diodes). This organic material is used as a spacer layer in GMR devices
with spin-valve structures. Traditionally, metals and semiconductors are
used as a spacer layer in spin-valve. However, several factors such as
spin scattering caused by large atoms of the spacer material and the
interface scattering of ferromagnetic with a spacer, will limit the
efficiency of spin-valve. In this paper, we describe a new GMR materials
based on organic material that we have developed.Fujii, Y.: Precision Force Measurement Using the Levitation Mass Method (LMM)
http://adsabs.harvard.edu/abs/2011AMM...103....1F
Not AvailableArianto: Kaluza-Klein brane cosmology with a bulk scalar field
http://adsabs.harvard.edu/abs/2011PhRvD..84d4008A
The brane-world cosmological model in higher-dimensional spacetime with
a bulk scalar field is investigated. We derive the (4+n)-dimensional
gravitational field equations for the scalar field on the (3+n)-brane in
a (5+n)-dimensional bulk with Einstein gravity plus a self-interacting
scalar field. The (4+n)-dimensional gravitational field equations can be
formulated to standard form with the extra component. Using this
formalism we study the Kaluza-Klein brane cosmology. We derive the
Friedmann equation and a possible energy leak out of the brane into the
bulk. We present some exact solutions corresponding to vacuum brane and
matter on the brane.Sanjaya, E.: Failure of Numerical modeling of 3-D Position Reconstruction from 3-Axial Planar Spiral Coil Sensor Sensitivity due to Existence of Quadratic Terms
http://adsabs.harvard.edu/abs/2011arXiv1108.4185S
A sensitivity profile of a planar spiral coil sensor (PSCS) is proposed
and is used to generate the relation of 3-D position of object observed
using three PSCSs, one in each x, y, and z axis to the sensors response.
A numerical procedure using self consistent field-like method to
reconstruct the real position of observed object from sensor sensitivity
is presented and the results are discussed. Unfortunately, the procedure
fails to approach the desired results due to the existence of quadratic
terms.Viridi, S.: One dimension spring supported ball on top of a sinusoidal vibrating plate: A forced oscillation simulation using molecular dynamics method
http://adsabs.harvard.edu/abs/2011arXiv1107.5804V
A ball supported by a spring is set on top of a plate which is
sinusoidal vibrated. The motion is limited to one dimension motion. It
is assumed that the spring is an ideal one with zero mass. The vibrating
plate is considered much heavier than the ball, so that the ball motion
has no influence on the plate motion. Plate vibration frequency is
varied around the frequency of ball-spring system. Resonance phenomenon
is reported, which needs a phase match condition to occur.Suprijadi: Automatic Road Lighting System (ARLS) Model Based on Image Processing of Moving Object
http://adsabs.harvard.edu/abs/2011arXiv1107.0845S
Using a vehicle toy (in next future called vehicle) as a moving object
an automatic road lighting system (ARLS) model is constructed. A digital
video camera with 25 fps is used to capture the vehicle motion as it
moves in the test segment of the road. Captured images are then
processed to calculate vehicle speed. This information of the speed
together with position of vehicle is then used to control the lighting
system along the path that passes by the vehicle. Length of the road
test segment is 1 m, the video camera is positioned about 1.1 m above
the test segment, and the vehicle toy dimension is 13 cm \times 9.3 cm.
In this model, the maximum speed that ARLS can handle is about 1.32 m/s,
and the highest performance is obtained about 91% at speed 0.93 m/s.Viridi, S.: Rise or sink: spherical intruder in density frequency dependence static granular fluid
http://adsabs.harvard.edu/abs/2011arXiv1106.5285V
A simple model for intruder in vibrating granular bed is constructed by
introducing a term that governs frequency dependent granular bed
density. Varying the vibrating frequency will drive the buoyant force
acting on the intruder by the granular bed. Swapped regions of rising
and sinking intruder compared to other reported result have bee found.Satira, S.: Steady energy transfer dependence granular temperature on single bouncing granular particle
http://adsabs.harvard.edu/abs/2011arXiv1106.1772S
Simulation of a system consisted of free particle bouncing on a
vertically vibrated based is performed. Two different states, which are
steady and unsteady energy transfer state are found. The vibrating based
is hold at constant vibration frequency $f = 0.1$ as the vibration
amplitude $A$ varied. Sinusoidal form is used. Granular temperature
$T_g$ as function of based velocity and coefficient of restitution is
used but shown no role in determining energy transfer state of the
system. Peak of free particle trajectory $x_m$ around value 20 seperate
region of the two states.Widiatmoko, E.: A simple spectrophotometer using common materials and a digital camera
http://adsabs.harvard.edu/abs/2011PhyEd..46..332W
A simple spectrophotometer was designed using cardboard, a DVD, a pocket
digital camera, a tripod and a computer. The DVD was used as a
diffraction grating and the camera as a light sensor. The
spectrophotometer was calibrated using a reference light prior to use.
The spectrophotometer was capable of measuring optical wavelengths with
a theoretical accuracy as high as 0.2 nm. Using this spectrophotometer,
wavelengths are determined via image processing.Viridi, S.: Self-Siphon Simulation Using Molecular Dynamics Method
http://adsabs.harvard.edu/abs/2011arXiv1104.1847V
A self activated siphon, which is also known as self-siphon or
self-priming siphon, is simulated using molecular dynamics (MD) method
in order to study its behavior, especially why it has a critical height
that prevents fluid from flowing through it. The trajectory of the fluid
interface with air in front of the flow or the head is also fitted the
trajectory modeled by parametric equations, which is derived from
geometry construction of the self-siphon. Numerical equations solved
using MD method is derived from equations of motion of the head which is
obtained by introducing all considered forces influencing the movement
of it. Time duration needed for fluid to pass the entire tube of the
self-siphon, {\tau}, obtained from the simulation is compared
quantitatively to the observation data from the previous work and it
shows inverse behavior. Length of the three vertical segments are varied
independently using a parameter for each segment, which are N_5, N_3,
and N_1. Room parameters of N_5, N_3, and N_1 are constructed and the
dependency of {\tau} to these parameters are discussed.Sulaiman, A.: The thermodynamic properties of Davydov-Scott's protein model in thermal bath
http://adsabs.harvard.edu/abs/2011arXiv1103.1677S
The thermodynamic properties of Davydov-Scott monomer contacting with
thermal bath is investigated using Lindblad open quantum system
formalism. The Lindblad equation is investigated through path integral
method. It is found that the environmental effects contribute
destructively to the specific heat, and large interaction between
amide-I and amide-site is not preferred for a stable Davydov-Scott
monomer.Gunara, B. E.: N = 1 supergravity BPS domain walls on Kähler-Ricci soliton
http://adsabs.harvard.edu/abs/2011RpMP...67..395G
This paper provides a study of some aspects of flat and curved BPS domam
walls together with their Lorentz invariant vacua of four-dimensional
chiral N=1 supergravity. The scalar manifold can be viewed as a
one-parameter family of Kähler manifolds generated by a
Kähler-Ricci flow equation. Consequently, a vacuum manifold
characterized by (m,λ) where m and λ are the dimension and
the index of the manifold, respectively, does deform with respect to the
flow parameter related to the geometric soliton. Moreover, one has to
carry out the renormalization group analysis to verify the existence of
such a vacuum manifold in the ultraviolet or infrared regions. At the
end, we discuss a simple model with linear superpotential on U(n)
symmetric Kähler-Ricci orbifolds.Gunara, B. E.: Some Aspects of Spherical Symmetric Extremal Dyonic Black Holes in 4d N=1 Supergravity
http://adsabs.harvard.edu/abs/2010arXiv1012.0971G
In this paper we study several aspects of extremal spherical symmetric
black hole solutions of four dimensional N=1 supergravity coupled to
vector and chiral multiplets with the scalar potential turned on. In the
asymptotic region the complex scalars are fixed and regular which can be
viewed as the critical points of the black hole and the scalar
potentials with vanishing scalar charges. It follows that the asymptotic
geometries are of a constant and non-zero scalar curvature which are
generally not Einstein. These spaces could also correspond to the near
horizon geometries which are the product spaces of a two anti-de Sitter
surface and the two sphere if the value of the scalars in both regions
coincides. In addition, we prove the local existence of non-trivial
radius dependent complex scalar fields which interpolate between the
horizon and the asymptotic region. We finally give some simple
${\lC}^{n}$-models with both linear superpotential and gauge couplings.Ramli, R.: The Preliminary Study Of Giant Magnetoresistance Sensor For Detection Of Oxygen In Human Blood
http://adsabs.harvard.edu/abs/2010AIPC.1325..309R
In recent years, there has been great progress for applications of
nanomaterials in medicine field. Human body consists of many atoms and
they can be treated like as nanomaterials. One of them is oxygen. Oxygen
is always found in the human blood. Its concentration in human blood
gives information about the metabolism in the body. The purpose of this
study was to look for a possibility for developing tool to detect the
concentration of oxygen in blood. In this study, the
giant-magneto-resistance (GMR) sensor is implemented. The GMR sensor has
many attractive features, for example: reduced size, low-power
consumption, low price, as compared to other magnetic sensors and its
electric and magnetic properties can be varied in very wide range. In
this experiment, we developed the structure of GMR materials
NiCoFe/Cu/NiCoFe sandwich as a GMR sensor. The NiCoFe/Cu/NiCoFe
sandwiches were grown onto Si (111) substrates by the dc-opposed target
magnetron sputtering (dc-OTMS) technique. The sputtering targets were
NiCoFe and Cu. To achieve the aims of this study, the blood transports
in human will be simulated using a simple experimental model. This model
has some parameters representing those in blood transport. Furthermore,
the nanomagnetic material will be made as a contaminant particle in
blood. Using this material some properties of the transport will be
investigated.Yulkifli, S., Agung: Development Of Mathematical Model Of Vibration Sensor Based On Fluxgate Magnetic Sensor
http://adsabs.harvard.edu/abs/2010AIPC.1325..305Y
Vibration is a periodic oscillatory motion around its initial position.
When an object vibrates, it also changes its distance relatively to
another object. If one places a magnetic source on the vibrating object,
so a magnetic sensor can measure its position by measuring the magnetic
field strength from a reference position. There are two parameters that
should be determined of a vibrating object, namely amplitude and
frequency. Using Fourier Transform and a good mathematical model, these
two parameters can be well determined. For this purpose, we have
developed a vibration sensor based on fluxgate magnetic sensor. A
mathematical model using 4<SUP>th</SUP> order polynomial approach has
been developed for this sensor. Using this model, the developed sensor
can measure vibration in the range of 0.5 to 2.5 g with relative errors
below 3%.Hendro, R., Natal, Djamal, Mitra: Determination of the Dielectric Constant and the Thickness of Gold Film by SPR Technique
http://adsabs.harvard.edu/abs/2010AIPC.1325..285H
Experimental data obtained from the SPR technique was fitted using the
Winspall simulation program to determine the dielectric constant and the
thickness of its gold film. Experiment was performed by measuring the
reflectance of reflected light against the incoming angle of Kretschmann
configuration. Two kind of prisms were used namely BK7 and SF11. For a
comparison, the same data was processed with manual calculation based on
Fresnel and Kretschmann formulation. The difference between result from
Winspall simulation program and that from manual calculation was 2.86%
for BK7/Au/Air and 15.78% for SF11/Au/Air.Wahyoedi, S. A.: Multi-Centered Metric In 4-Dimensional Lorentzian Manifold
http://adsabs.harvard.edu/abs/2010AIPC.1325..214W
In this paper, we construct explicitly a multi-centered metric in
4-dimensional Lorentzian manifolds. We consider an axial symmetric
metric with zero scalar curvature which can be described by Laplace
equation. Then, we consider a point source which can be interpreted as a
remove point on the manifold. So, the Laplace equation becomes Poisson
equation. Finally, we construct explicitly a multi-centered metric based
on solution of the Poisson equation.Triyanta, S., Zen, F. P.: Field Equations for Abelian Vector Fields in the Bianchi Type I Metric in the Framework of Teleparallel Gravity
http://adsabs.harvard.edu/abs/2010AIPC.1325..210T
Gauge theory, under the framework of quantum field theory, has
successfully described three fundamental interactions: electromagnetic,
weak, and strong interactions. Problems of describing the gravitational
interaction in a similar manner has not been satisfied yet until now.
Teleparallel gravity (TG) is one proposal describing gravitational field
as a gauge field. This theory is quite new and it is equivalent to
Einstein's general relativity. But as gravitational field in TG is
expressed by torsion, rather than curvature, it gives an alternative
framework for solving problems on gravity. This paper will present
solution of the dynamical equation of abelian vector fields under the
framework of TG in the Bianchi type I spacetime.Gunara, B. E.: Spacetime of Constant Scalar Curvature in N = 1 Supergravity
http://adsabs.harvard.edu/abs/2010AIPC.1325...28G
In this short paper we show the existence of solitonic solutions of four
dimensional ungauged N = 1 supergravity coupled to arbitrary vector and
chiral multiplets whose Ricci scalar curvature is constant. The Ricci
scalar of spacetimes indeed depends on the σ-model, namely the
complex scalars and their first derivative. Then, we give two explicit
models, namely static domain walls and static spherical symmetric black
holes which are related to our previous works.