Samodro Lepas ...

Cara mendapatkan kredit gratis $5 Udemy

noreply@blogger.com (Admin) — Thu, 05 Feb 2015 07:38:00 +0000

Udemy memberikan gratis kredit senilai $5 untuk pendaftar baru dan kredit tersebut dapat digunakan untuk membeli kursus di Udemy senilai maksimal $5.

Langkah-langkah:
LANGKAH 1
Klik DISINI untuk daftar baru di Udemy.
Tunggu sampai keluar tampilan gratis $5 dan klik EXPLORE COURSES

Kemudian scroll kebawah sampai pada tombol Signup, klik tombol Signup untuk daftar

Setelah tampil form pendaftaran, isi kolom nama,email, dan password (diisi terserah/sesukanya) kemudian klik Sign Up

Sesudah masuk di dashboard Udemy, tinggal membelanjakan kredit $5 yang didapat melalui langkah ke 2.

LANGKAH 2
Klik salah satu link kursus Udemy dibawah ini:

Setelah keluar halaman kursusnya, klik tombol Take This Course

Kemudian tampil konfirmasi pembelian seperti gambar di bawah, klik Enroll to the course

Tampil ucapan selamat seperti gambar dibawah, kemudian klik CONTINUE TO COURSE

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Terakhir, setelah keluar dari Udemy, tutup semua tab/halaman Udemy yang ada dan ulangi prosesnya mulai dari Langkah 1.

Selamat Bekerja :)

#13 Polarization and Modulation of Light (part 1)

noreply@blogger.com (Admin) — Thu, 08 Jan 2015 12:30:00 +0000

Polarization
Polarization of an electromagnetic (EM) wave describes the behavior of the electric field vector in the EM wave as it propagates through a medium. If the oscillations of the electric field at all times are contained within a well-defined line then the EM wave is said to be linearly polarized.

The field vibrations and the direction of propagation, e.g. z-direction, define a plane of polarization (plane of vibration) so that linear polarization implies a wave that is plane-polarized. By contrast, if a beam of light has waves with the E-field in each in a random perpendicular direction to z, then this light beam is unpolarized.

A light beam can be linearly polarized by passing the beam through a polarizer, such as a polaroid sheet, a device that only passes electric field oscillations lying on a well defined plane at right angles to the direction of propagation.

Optical Isotropic
Most noncrystalline materials such as glasses and liquids, and all cubic crystals are optically isotropic, that is the refractive index is the same in all directions. Optically anisotropic crystals are called birefringent because an incident light beam may be doubly refracted.

Birefringent crystals
such as calcite are optically anisotropic which leads to an incident light beam becoming separated into ordinary (o-) and extraordinary (e-) waves with orthogonal polarizations; incident light becomes doubly refracted because these two waves experience different refractive indices no and ne

There is no double refraction for light propagation along the optic axis. If we were to cut a plate from a calcite crystal so that the optic axis (along z) would be parallel to two opposite faces of the plate, then a ray entering at normal incidence to one of these faces would not diverge into two separate waves. The o- and e-waves would travel in the same direction but with different speeds. The waves emerge in the same direction as well which means that we would see no double refraction. This optical arrangement is used in the construction of various optical retarders and polarizers as discussed below. If we were to cut a plate so that the optic axis was perpendicular to the plate face, then both the o and e-way would be traveling at the same speed and along the same direction which means we would not again see any double refraction

Optical indicatrix
Optical indicatrix (Fresnel’s ellipsoid) is a refractive index surface placed in the center of the principal axes x, y and z of a crystal; axis intercepts are n 1 , n 2 , and n 3 .

We can represent the optical properties of a crystal in terms of three refractive indices along three orthogonal axes, the principal axes of the crystal, x, y and z . These are special axes along which the polarization vector and the electric field are parallel.

(Put differently, the electric displacement D and the electric field E vectors are parallel). The refractive indices along these x, y and z axes are the principal indices n 1 , n 2 and n 3 respectively for electric field oscillations along these directions (not to be confused with the wave propagation direction).

Electro-Optic Effects
Electro-optic effects refer to changes in the refractive index of a material induced by the application of an external electric field, which therefore “modulates” the optical properties; the applied field is not the electric field of any light wave, but a separate external field.

#12 Photovoltaic Devices and Applied (part 2)

noreply@blogger.com (Admin) — Thu, 08 Jan 2015 11:00:00 +0000

pn Junction Photovoltaic I-V Characteristic
Photovoltaic or solar cell I-V characteristics are the current vs. voltage characteristics of the device under different intensities of illumination within the spectral response curve of the device.

Under illumination, the dark I-V characteristics become shifted so that there is a short circuit current Isc and an open circuit voltage Voc ; that is, a photocurrent Isc when the solar cell is shorted and a voltage V oc when it is in open circuit. Isc represents the conventional current that would normally flow in a forward biased diode. However, the actual photocurrent I ph is in the opposite direction to Isc , thus Isc = −Iph

When a solar cell drives a load R, R has the same voltage as the solar cell but the current through it is in the opposite direction to the convention that current flows from high to low potential.

Typical I-V characteristics of a Si solar cell. The short circuit current is -I ph and the open circuit voltage is Voc . The I-V curves for positive current requires an external bias voltage. Photovoltaic operation is always in the negative current region.

The total current I through a pn junction solar cell can normally be written as,

Series Resistance and Equivalent Circuit

Temperature Effect
The output voltage and the efficiency of solar cell increases with decreasing temperature; solar cells operate best at lower temperatures.

Solar Cells Materials, Devices and Efficiencies
Most solar cells are silicon based because silicon based semiconductor fabrication is now a mature technology that enables cost effective devices to be manufactured. Typical Si based solar cell efficiencies range from about 18% for polycrystalline to 22-24% in hight efficiency single crystal devices that have special structures to absorb as many of the incident photons as possible.

There are a number of III-IV semiconductor alloys that can be prepared with different bandgaps but with the same lattice constant. Heterojunctions (juntions between different materials) from these semiconductors have negligible interface defects.

#11 Photovoltaic Device and Applied (part 1)

noreply@blogger.com (Admin) — Thu, 08 Jan 2015 08:04:00 +0000

Solar Energy Spectrum

solar cells convert the incident solar radiation energy into electrical energy. Incident photons are absorbed to photogenerate charge carriers that pass through an external load to do electrical work. Photovoltaic devices may be metal/semiconductor Schottky junctions , pn junction or pin devices .

Solar constant is the integrated intensity above Earth’s atmosphere, that is, the total power flow through a unit area perpendicular to the direction of the sun. This quantity is called the solar constant or airmass zero (AM0) radiation and it is approximately constant at a value of 1.353 kW m-2.
Solar radiation air mass m (Amm) is defined as the ratio of the actual sun radiation path h to the shortest path h0, that is m = h/h0. Since h = h0 secθ, AMm is AMsecθ. The actual intensity spectrum on Earth’s surface depends on the absorption and scattering effects of the atmosphere and hence on the atmospheric composition and the radiation path length through the atmosphere.

Photovoltaic Devices Principles

For example, a crystalline Si pn junction solar cell may have a thin n-type semiconductor layer on a thick p-type substrate. The electrodes attached to the n-side must allow illumination to enter the device and at the same time result in a small series resistance.
They are deposited on to n-side to form an array of finger electrodes on the surface. The n-side is very narrow to allow most of the photons to be absorbed within the depletion region and within the neutral p-side. These photons photogenerate electron hole pairs (EHPs) in these regions.

Photogenerated Carrier

Microprocessor 2015 Universitas Internasional Batam

noreply@blogger.com (Admin) — Tue, 06 Jan 2015 23:19:00 +0000

Optoelektronika Universitas Internasional Batam

noreply@blogger.com (Admin) — Tue, 06 Jan 2015 23:17:00 +0000

#10 Photodetectors and Applied (part 4)

noreply@blogger.com (Admin) — Fri, 02 Jan 2015 12:00:00 +0000

Phototransistors
Phototransistor is a bipolar junction transistor (BJT) that operates as a photodetector with a photocurrent gain. Typically the base terminal is normally open and there is a voltage applied between the collector and emitter terminals just as in the normal operation of a common emitter BJT.

An incident photon is absorbed in the space charge layer (SCL) between the base and collector to generate an electron hole pair (EHP). The electric field E in the SCL separates the electron hole pair and drifts them in opposite direction. This is the primary photocurrent and effectively constitutes a base current even though the base terminal is open circuit (current is flowing into the base from the collector).

Since the photon generated primary photocurrent Ipho is amplified as if it were a base current (IB), the photocurrent flowing in the external circuit is

Iph ≈ βIpho

where β is the current gain (or hFE) of the transistor. The phototransistor construction is such that incident radiation is absorbed in the base-collector junction SCL. It is possible to construct a heterojunction phototransistor that has different bandgap materials for the emitter, base and collector.

Photoconductive Detectors
Photoconductive detectors have the simple metal-semiconductor-metal structures, that is two electrodes are attached to a semiconductor that has the desired absorption coefficient and quantum efficiency over the wavelengths of interest. Incident photons become absorbed in the semiconductor and photogenerate electron hole pairs (EHPs).

Photoconductive Gain

Photoconductive gain is occurs in a photoconductor when the external photocurrent is due to more than one electron flow per absorbed photon. The photoconductor must have ohmic contacts to allow carriers to enter the semiconductor. The photoconductive gain is then simply

where μe and μh, are the drift mobilities of the electrons and holes respectively, te is the electron transit time, te = l/( μe E) where l is the photoconductor length and E is the electric field and τ is the mean recombination time.

Noise in Photodetectors
Noise equivalent power (NEP) is an important property of a photodetector that is defined as the optical signal power required to generate a photocurrent signal that is equal to the total noise current in the photodetector at a given wavelength and within a bandwidth of 1Hz.
It is numerically equal to the optical power necessary to give a photocurrent equal to the noise current in the detector when the detector bandwidth is 1Hz.
NEP presents the required optical power to achieve a signal-to-noise (SNR) of 1 within a bandwidth of 1 Hz. The detectivity D is the reciprocal of NEP, D = 1/NEP.

#7 Photodetectors and Applied (part 2)

noreply@blogger.com (Admin) — Tue, 02 Dec 2014 18:11:00 +0000

Photodetector

is a device that converts a light signal to an electrical signal such as a voltage or current. In many photodetectors such as photoconductors and photodiodes this conversion is typically achieved by the creation of free electron hole pairs by the absorption of photons, that is, the creation of electrons in the conduction band and holes in the valence band.

In some devices such as pyroelectric detectors the energy conversion involves the generation of heat which increases the temperature of the device which changes its polarization and hence its relative permittivity.

Photodiode

is a semiconductor diode (a pn junction) that generates a photocurrent upon illumination with a suitable range of wavelengths. pn junction based photodiodes are small and have high speed and good sensitivity for use in various optoelectronics applications, the most important of which is in optical communications.

Ramo’s theorem

Consider a semiconductor material with a negligible dark conductivity that is electroded and biased to generate a field E in the sample that is uniform and is given by V/L. This situation is almost identical to the intrinsic region of a reverse biased pin photodiode.
Suppose that a single photon is absorbed at a position x = l from the left electrode and instantly creates an electron hole pair. The electron and the hole drift in opposite directions with respective drift velocities v e = μe E and vh = μh E, where μe and μh are the electron and hole drift mobilities respectively.

#6 Stimulated Emission Device Lasers (part 2)

noreply@blogger.com (Admin) — Sun, 30 Nov 2014 19:00:00 +0000

Elementary Laser Diode Characteristics

Laser diode is a semiconductor diode which emits coherent radiation in contrast to an LED (light emitting diode) which emits incoherent radiation. Laser diodes operate on the principle of stimulated emission resulting from electron hole pair injection and photon induced direct recombination under forward bias.

Steady State Semiconductor Rate Equation
Rate of electron injection by current = Rate of spontaneous emissions + Rate of stimulate emissions

Optical amplifier
Optical amplifier is an amplifier that amplifies an optical signal, that is light. A common type of an optical amplifier is an erbium ion doped optical fiber amplifier (EDFA) in which erbium ions are pumped to an excited state by using a laser diode (or an LED) at 980 nm.
Optical semiconductor amplifier is a semiconductor laser structure that can be used as an optical amplifier that amplifies light waves passing through its active region. Light to be amplified is made to enter the active region of the laser semiconductor diode and the active region is pumped by a sufficiently large diode current just as in a normal laser diode. The wavelength of radiation to be amplified must be within the optical gain bandwidth of the laser. Such a device would not be laser oscillator, emitting lasing emission without an input, but an optical amplifier with input and output ports for light entry and exit. In the travelling wave semiconductor laser amplifier the ends of the optical cavity have Anti Reflection (AR) coatings so that the optical cavity does not act as an efficient optical resonator, a condition for laser-oscillations. Light, for example, from an optical fiber, is coupled into the active region of the laser structure. As the radiation propagates through the active layer, optically guided by this layer, it becomes amplified by the induced stimulated emissions, and leaves the optical cavity with a higher intensity.

Holography
is a technique of reproducing three dimensional optical images of an object by using a highly coherent radiation from a laser source. The object, e.g. a cat, is illuminated by a highly coherent beam as normally would be available from a laser . The laser beam has both spatial and temporal coherence. Part of the coherent wave is reflected from a mirror to form a reference beam E ref and travels towards a fine-grained photographic plate. The waves that are reflected from the cat, E cat , will have both amplitude and phase variations that represent the cat's surface (topology). If we were looking at the cat, our eyes would register the wavefront of the reflected waves E cat . Moving our head around we would capture different portions of the reflected wave and we would see the cat as a three dimensional object. The reflected waves from the cat (E cat ) is made to interfere with the reference wave (E ref ) at the photographic plate and give rise to a complicated interference pattern that depends on the magnitude and phase variation in E cat . The recorded interference pattern in the photographic film (after processing) is called a hologram. It contains all the information necessary to reconstruct the wavefront E cat reflected from the cat and hence produce a three dimensional image. To obtain the three dimensional image, we simply have to illuminate the hologram with the reference beam E ref Most of the beam goes right through but some of it becomes diffracted by the interference pattern in the hologram. One diffracted beam is an exact replica of the original wavefront E cat from the cat . The observer sees this wavefront as if the waves were reflected from the original cat and registers a three dimensional image of the cat. This is the virtual image. We know that first order diffraction from a grating has to satisfy the Bragg condition, dsin θ = m λ (m = ±1) where λ is the wavelength and d is the separation of the slits. We can qualitatively think of a diffracted beam from one locality in the hologram as being determined by the local separation d between interference fringes in this region. Since d changes in the hologram depending on the interference pattern produced by E cat , the whole diffracted beam depends on E cat and the diffracted beam wavefront is an exact scaled replica of E cat . Just as normally there would be another diffracted beam on the other side of the zero-order (through) beam, there is a second image, called the real image which is of lower quality. (It may help to imagine what happens if the object consists of black and white stripes. We would then obtain periodic dark and bright interference fringes in the hologram. This periodic variation is just like a diffraction grating; the exact analysis is more complicated). Holography is therefore a method of wavefront reconstruction.

#5 Stimulated Emission Device Lasers (part 1)

noreply@blogger.com (Admin) — Sun, 31 Aug 2014 18:36:00 +0000

Stimulated Emission

is the phenomenon by which an incoming photon of energy hu = E2 –E1 interacts with an electron in a high energy state, ψ (n, l ,ml ,ms), at E2 , and induces it to transit down to a lower energy state, ψ (n ′ , l′ ,m l ′ ,m s ′ ), at E1 , that is not occupied.

Einstein coefficients

A21 , B12 and B21 are constants that are used in describing the rates of spontaneous emission, absorption and stimulated emission respectively between two energy levels E1 and E2 where E2 > E1. For example, the rate of spontaneous emission from E2 and E1 is proportional to the number of atoms N2 at E2 so that spontaneous transition rate is A21 N2 .

Optical Fiber amplifier

is an optical amplifier consisting of a glass fiber doped with certain rare-earth ions such as Er 3+ ions, operating on the principle of stimulated emission. Typically it is a glass optical fiber whose core is doped with rare earth ions which are optically excited from an external light source to achieve population inversion and hence optical amplification.

He-Ne laser is a gas laser in which he Ne atoms are made to lase by pumping them through atomic collisions with He atoms that have been excited by an electrical discharge. The emissions may be in the infrared (1523 nm), red (632.8 nm), orange (612 nm), yellow (594.1 nm) or green (543.5 nm).

BATAM Blackout

noreply@blogger.com (Admin) — Fri, 06 Jan 2012 23:08:00 +0000

Terjadi pemadaman listrik dalam beberapa hari ini. Dan paling terasa adalah kemarin sore setelah maghrib, pemadaman terjadi lagi. Sekitar dua jam saya tenger-tenger* di dalam kamar yang gelap.
Pikiran berkecamuk saat itu. Apakah ini gara-gara isu BBM yang akan naik?

Namun dari sinilah timbulnya kesadaran. Bahwa cahaya telah memberikan kita ruang. Ruang yang dapat membatasi satu dengan yang lain. Cahaya telah memberikan pengertian kepada kita kalau didepan ada meja, di samping kursi, di atas cicak, di bawah ada semut, dan seterusnya.
Akhirnya saya berkesimpulan bahwa di surga bertabirkan cahaya-cahaya yang beraneka warna dan kecerahan sehingga memunculkan dimensi yang mampu kita cerna oleh akal kita.

tenger-tenger = termangu

Pengantar Komputer 2012

noreply@blogger.com (Admin) — Fri, 06 Jan 2012 23:07:00 +0000

Terdapat beberapa perubahan topik pada mata kuliah Pengantar Komputer 2012. Mengingat perkembangan teknologi dan tren dunia komputer saat ini dituntut beberapa materi masuk dalam perkuliahan Pengantar Komputer 2012. Materi tersebut diantaranya adalah android.
Topik-topik Pengantar Komputer 2012 tersusun sebagai berikut:

First Middle

historical of computer, inside of personal computer, how software control hardware, operating system, how conversion energy and port work, disk storage work, and kind of input output device

Second Middle

networking, word processor and spreadsheet, graphic and 2D animation, 3D Animation, database, webserver, and Android

Adapun materi buku Ron White dapat diunduh di sini.

Pengantar Komputer 2011

noreply@blogger.com (Admin) — Sat, 05 Nov 2011 02:53:00 +0000

Introduction to Computer for UIB students.

Angkatan 2011/2012 masih belajar pengantar komputer dengan saya, alhamdulillah ya ... sesuatu banget

Bagi mahasiswa dan mahasiswi yang belum sempat kopi. Ya, silahkan disrutup materi berikut meski ala kadarnya. Kesepakatan
Kesepakatan, handout 1, handout 2, handout 3, handout 4, handout 5, handout 6a, handout 6b, handout 7a, handout 7b, ups.

setelah uts,
handout 8, handout 9, handout 10
Setelah UTS para mahasiswa membentuk grup untuk membuat video dan presentasi di depan kelas dengan topik "bebas" terkait dengan dunia komputer.
Berikut tanggal presentasi beserta grupnya:

presentasi I: 8 Desember 2011

(Adelia Mayang Sari dan Anggreiny Jayanti),
(Ferdy Irawan dan Hidayat Wijaya),
(Muhammad Thoriqul Ullum dan Laurencius Bambang Hermanto Siahaan)

presentasi II: 15 Desember 2011

(Rafi Firman Saputra dan Kienedi),
(Muhammad Firlie Hidayat dan Padli Amin),
(Ricky Zamusti dan Septi Andi Eka Wibowo) topik: "Tutorial instalasi operating system Windows XP, Windows 7, dan Ubuntu pada netbook dengan menggunakan flash disk"

presentasi III: 22 Desember 2011

(Imam Suhendra dan Eric Saputra),
(Susan dan Chiji Wahyono),
(Dimas Pranata dan Didi Supriadi),
(Sesmita dan Fredi Siswanto)

Perancangan Sistem Digital

noreply@blogger.com (Admin) — Wed, 02 Nov 2011 02:45:00 +0000

Ada berbagai versi tentang mata kuliah Perancangan Sistem Digital. Di kampus Bentara Persada, saya coba menyajikan yang umum saja. Tentu saja semua itu terkait dengan intake, facility, dan complexity.

Berikut link materi

Handout1, Handout2, Handout3, Handout4, Handout5,

Digital Image Processing

noreply@blogger.com (Admin) — Thu, 08 Apr 2010 08:45:00 +0000

Digital Image Processing adalah mata kuliah baru yang ditawarkan di jurusan elektro UIB. Mata kuliah ini merupakan mata kuliah lanjutan (pilihan) dari mata kuliah Digital Signal Processing.

Aplikasi dunia pengolahan citra digital semakin ramai dibicarakan, ...
didiskusikan, dan diteliti. Karena sesungguhnya citra itu indah dan dapat dinikmati dengan mata.

Sebagai buku acuan saya adalah Digital Image Processing penulisnya Bapak Rafael C. Gonzales dan Bapak Richard E. Woods. Jika anda mencarinya dengan ISBN-10 adalah 0-201-18075-8 di amazon atau ketikan kata kunci judul/penulis. Di samping itu buku lain yang membantu saya adalah The Image Processing Handbook yang ditulis oleh Bapak John C Russ dengan ISBN-10: 0-8493-7254-2.

Apa yang ingin dicapai di mata kuliah ini?

kompetensi dalam menjelaskan sinyal dan sistem citra waktu diskrit
memahami deskripsi ranah frekuensi dari pemrosesan citra waktu diskrit
memahami desain dan spesifikasi filter digital multi-dimensional untuk aplikasi pemrosesan citra
mengerti perbedaan pendekatan pada desain dan implementasi dari filter digital
mengetahui aplikasi pemrosesan citra yang kontemporer

Dalam waktu dekat akan diupload semua handout di sini. Semoga.
preface.

Tugas Akhir bagi mahasiswa Digital Image Processing adalah membuat pengolahan citra digital dengan perangkat lunak J2SE. Oleh karena itu berikut saya lengkapi e-book untuk membantu mempelajari pemrograman java:

Beginning Java Programming For Dummies

Java Programming for Engineer

NetBeans IDE Field Guide

Pro NetBeans IDE 6

Digital Image Processing: an Algorithmic Introduction Using Java

Sementara untuk download software J2SE, NetBeans, JCreator sedang dicarikan linknya.

Mari belajar bersama-sama. Kebetulan saat ini saya sedang menekuni penelitian pengolahan citra dari webcam untuk dijadikan obyek 3D di komputer. Ke depan, harapannya adalah penelitian lanjutan untuk aplikasi pada protokol TCP/IP dan berikutnya mobile imaging. Apabila ada mahasiswa yang akan mengambil sub topik penelitian ini, bisa menghubungi saya.

Semoga citra kita semakin baik.

Dasar Telekomunikasi 2010

noreply@blogger.com (Admin) — Sat, 03 Apr 2010 02:58:00 +0000

Ada perubahan pada mata kuliah Dasar Telekomunikasi 2010. Yang pertama acuan yang dipakai atau SAP mirip milik Universitas Bradley. Dan setelah ditelusuri memang beberapa uni di amerika seperti Barkeley dan MIT juga menggunakan pendekatan yang sama untuk mata kuliah Fundamental of Telecommunication. Yang kedua, tentu saja buku acuan mengalami perubahan dan memiliki pendekatan ke komputasi menggunakan software Matlab.

Beberapa materi yang dibahas:

Pendahuluan
Sinyal dan Spektrum
Pulsa Baseband dan Pensinyalan Digital
Prinsip Rangkaian dan Pensinyalan Baseband

Devais Elektronika dan Dasar Telekomunikasi

noreply@blogger.com (Admin) — Tue, 03 Nov 2009 01:27:00 +0000

Beberapa materi handout akan tersedia di sini secara bertahap karena proses upload yang cukup memakan waktu. Harap bersabar dan silahkan mengunjungi disini kembali bila link-nya belum tersedia. Bila sempat tinggalkan komentar di bawah ini.

Devais Mikroelektronika
Handout-1, Handout-2, Handout-3, Handout-4, Handout-5, Handout-6, Handout-7, Handout-8, Handout-9, Handout-10, diktat, dan 4 pertemuan untuk presentasi perancangan dan presentasinya.

Dasar Telekomunikasi
Handout-1, Handout-2, Handout-3, Handout-4, Handout-5, Handout-6, Handout-7, Handout-8, Handout-9, Handout-10, Handout-11, Handout-12, Handout-13, Handout-14, dan diktat.

Selamat Belajar

Tips Terhindar Ban Bocor Karena Paku

noreply@blogger.com (Admin) — Tue, 27 Oct 2009 00:57:00 +0000

Saya kira judul sudah sangat spesifik. Pertama berkaitan dengan kiat atau cara untuk menghindari. Kemudian obyek yang diangkat adalah ban. Ban memiliki banyak properties salah satunya suka bocor. Ada banyak bocor, karena ban luar tipis, karena ban kempes kemudian mbocengin KingKong, dan bocor dikarenakan tertancap paku.

Agar catatan ini lebih afdol saya ambil dulu referensinya. Meskipun tinjauan pustaka tidak saya ambil secara "leterlek" tapi memiliki intisari yang sama. Al kisah pada Nabi Sulaiman memiliki kemampuan berkomunikasi dengan mahluk apapun di dunia ini. Di kisahkan ada seekor semut yang berteriak memberikan komando ke seluruh stafnya agar segera menyingkir dikarenakan pasukan King Solomon akan lewat. Namun Nabi Sulaiman mendengar suara tersebut meskipun pada jarak yang jauh (barisan semut ada jauh di depan konvoi pasukannya) dan terdengar sayup-sayup (bayangkan saja suara semut kecil banget, berkisar -15dB, masih lebih keras suara debu terbang). Mendengar perkataan semut tersebut Nabi Sulaiman dengan sigap mengangkat tangan sambil mengepal (dalam bahasa tubuh saat gerilya, sikap ini artinya "mandek disik rek"). Dan berucap ke seluruh pasukan untuk berhenti sejenak agar barisan semut lewat lebih dahulu. (sumber: Al-Quran)

Paku juga mahluk tuhan dan memiliki kemiripan dengan semut tersebut, kecil terhina dan dimana-mana. Adakah di antara kita saat mengedarai motor melihat paku di jalan akan berhenti dan menyingkirkannya. Mungkin di benak banyak kecamuk seperti "Alhamdulillah, tidak kenai aku", "Semoga disingkirkan orang yang di belakang saya", dan masih banyak lagi. Bukankah menghindarkan musibah orang lain merupakan amal baik. Mungkin saat itu anda terburu-buru, atau bahkan berkata "Ah malas hentikan motor", bahkan ekstrim "biarkan aja, yang naik mobil biar kena getahnya juga". Nabi Muhammad SAW bersabda menyingkirkan onak/duri di jalan adalah ibadah.

Jadi tips agar anda terhindar ban bocor karena paku adalah selalu singkirkan paku yang terlihat di jalan. Buang ke selokan atau bahkan simpan, dibawa pulang untuk pasang pigura. Insya allah, paku yang anda singkirkan tersebut akan memberikan pesan singkat dan berantai ke paku-paku lain yang masih berserakan di jalan agar anda diberi kode/sinyal/indikator kalau ada paku di depan anda. Ngebut secepat apapun insya allah akan terhindar dari paku yang berserak.

Semoga tips ini membantu dan menjadi nyaman berkendara sampai ditujuan. Jangan lupa baca Alhamdulillah telah sampai tanpa aral yang melintang di jalan. Amin

Menjelang UAS Sistem Komputer

noreply@blogger.com (Admin) — Sat, 07 Feb 2009 12:09:00 +0000

Meski sudah saya kopikan ke flashdisk masing-masing mahasiswa namun ada saja request untuk diupload di blog saya yang jadul ini. Tapi tak apalah setidaknya bisa melepas rindu meski sebentar masuk di blog ini. :D

Selain materi setelah UTS ganjil 2008/2009, saya sertakan juga contoh UAS. Mungkin bisa menginspirasi dan terus membaca literatur-literatur yang ada.

materi 1, materi 2, materi 3, materi 4, materi 5, materi 6, materi 7, dan UAS.

Selamat belajar dan selalu membaca (iqro').

Perbaharuan Materi Dasar Telekomunikasi dan Pengendalian Listrik Statik

noreply@blogger.com (Admin) — Wed, 28 Jan 2009 12:16:00 +0000

Update materi kuliah Pengendalian Listrik Statik

Update materi kuliah Dasar Telekomunikasi

materi 1
materi 2
materi 3
materi 4
materi 5
materi 6

Selamat ujian akhir semester ganjil 2008/2009

Dasar Telekomunikasi

noreply@blogger.com (Admin) — Tue, 04 Nov 2008 16:06:00 +0000

Dasar Telekomunikasi merupakan mata kuliah yang garis besarnya agar mahasiswa Universitas Riau Kepulauan dapat mendesain dan menganalisa konsepsi sistem telekomunikasi secara umum.

Beberapa topik bahasan adalah:

Rambatan Gelombang Radio
Modulasi Sinyal
Antena dan Waveguide
Sistem Komunikasi Satelit
Sistem Komunikasi Serat Optik
Sistem Teleponi
Sistem Komunikasi Digital
Sistem Komunikasi Seluler

Referensi yang digunakan dari buku tua yang masih relevan dan sangat kaya informasi dasar karangan Dennis Roody dan John Coolen. Tersedia dalam bahasa Indonesia yang disaribahasakan oleh Kamal Idris melalui penerbit Erlangga Jilid1.
Berisikan dasar-dasar telekomunikasi tentang kebisingan (noise), perambatan gelombang radio, sinyal audio, analisa rangkaian pasif yang nota bene sarat dengan formulasi dan istilah dalam dunia telekomunikasi.

Sedangkan jilid kedua memuat beberapa topik tentang sistem telekomunikasi yang ada.

Alhamdulillah buku tua tersebut telah saya dokumentasikan secara digital. dan referensi tersebut bisa diunduh, hanya saja tidak bisa secara keseluruhan dikarenakan jumlah total file 250 MB. Bila mahasiswa yang menginginkan atau mengkoleksi literatur tersebut bisa menghubungi saya (0778-7285646 atau 081615642451) dan mengganti ongkos CD sebesar 10ribu saja. Di dalam cd tersebut tersedia beberapa literatur telecommunication yang lain berbahasa inggris.

Materi kuliah yang telah ada (dalam ppt), bisa diunduh di sini dan di sini .

Semoga membantu.

Babak Baru

noreply@blogger.com (Admin) — Sat, 01 Nov 2008 02:39:00 +0000

Setelah mati suri sekian lama, blog ini saya coba jenguk kembali. Memang aktivitas lapangan yang menyita waktu tidak sempat update atau sekedar menulis di blog. Padahal dulu cita-citanya blog ini selalu diperbaharui, khususnya untuk membantu mahasiswa dalam perkuliahan.

Semoga inilah babak baru dalam samodro.blogspot.com dan banyak hal baru yang dapat dituliskan disini.

assignment physic

noreply@blogger.com (Admin) — Thu, 31 Jan 2008 10:47:00 +0000

At last course physic, i give assignment for electro and civil. Please do it the question and give illustration for your comprehension. The answer

Student must send the answer with attachment email at untung_samodro@yahoo.com and writing in document (format doc) before final exam physic.

Right now, i starting to writing handout for applied physic. I hope student not just know physic theory but can use formula to solve physic problem in electro or civil engineering. I need support you all and blessing.

Assignment

noreply@blogger.com (Admin) — Mon, 07 Jan 2008 17:24:00 +0000

Assignment's hardware lecture related topic multimedia.

Resume this video and give your opinion, idea, critics, or solution. At least 1400 words.

Site mrx maybe help you to understand the video.

Send me attachment file pdf to: untung_samodro@yahoo.com
Before : January, 14 2008 24.00 o'clock.

Materi 'Fisika Dasar 2' Teknik Elektro

noreply@blogger.com (Admin) — Sun, 06 Jan 2008 23:02:00 +0000

Perkuliahan Fisika Dasar 2 (4sks) untuk Teknik Sipil ditawarkan pada semester genap, lebih tepatnya untuk mahasiswa baru atau semester dua ....

Pertemuan 1,
Pertemuan 2,
Pertemuan 3,
Pertemuan 4,
Pertemuan 5,
Pertemuan 6,
Pertemuan 7, Menentukan besar gaya pada benda yang bergerak berdasarkan Hukum Newton 1, 2, dan 3
UTS, pembahasannya
Pertemuan 8,
Pertemuan 9,
Pertemuan 10,
Pertemuan 11,
Pertemuan 12,
Pertemuan 13,
Pertemuan 14,
UAS, pembahasannya.