Seminar topics with full reports and presentations

Digital Audio Broadcasting (DAB)

2011-08-20T00:14:00.000-07:00

Digital audio broadcasting, DAB, is the most fundamental advancement in radio technology since that introduction of FM stereo radio. It gives listeners interference — free reception of CD quality sound, easy to use radios, and the potential for wider listening choice through many additional stations and services.
DAB is a reliable multi service digital broadcasting system for reception by mobile, portable and fixed receivers with a simple, non-directional antenna. It can be operated at any frequency from 30 MHz to 3GHz for mobile reception (higher for fixed reception) and may be used on terrestrial, satellite, hybrid (satellite with complementary terrestrial) and cable broadcast networks.
DAB system is a rugged, high spectrum and power efficient sound and data broadcasting system. It uses advanced digital audio compression techniques (MPEG 1 Audio layer II and MPEG 2 Audio Layer II) to achieve a spectrum efficiency equivalent to or higher than that of conventional FM radio. The efficiency of use of spectrum is increased by a special feature called Single. Frequency Network (SFN). A broadcast network can be extended virtually without limit a operating all transmitters on the same radio frequency.

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MICROBIAL FUEL CELLS

2011-08-20T00:12:00.000-07:00

In an era of climate change, alternate energy sources are desired to replace oil and carbon resources. Subsequently, climate change effects in some areas and the increasing production of biofuels are also putting pressure on available water resources. Microbial Fuel Cells have the potential to simultaneously treat wastewater for reuse and to generate electricity; thereby producing two increasingly scarce resources. While the Microbial Fuel Cell has generated interest in the wastewater treatment field, knowledge is still limited and many fundamental and technical problems remain to be solved Microbial fuel cell technology represents a new form of renewable energy by generating electricity from what would otherwise be considered waste, such as industrial wastes or waste water etc. A microbial fuel cell [Microbial Fuel Cell] is a biological reactor that turns chemical energy present in the bonds of organic compounds into electric energy, through the reactions of microorganism in aerobic conditions.

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BRUSHLESS DC ELECTRIC MOTOR

2011-08-20T00:10:00.000-07:00

A microprocessor-controlled BLDC motor powering a micro remote-controlled airplane. This external rotor motor weighs 5 grams, consumes approximately 11 watts (15 millihorsepower) and produces thrust of more than twice the weight of the plane.
Brushless DC motors (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors) are synchronous electric motors powered by direct-current (DC) electricity and having electronic commutation systems, rather than mechanical commutators and brushes. The current-to-torque and voltage-to-speed relationships of BLDC motors are linear.
BLDC motors may be described as stepper motors, with fixed permanent magnets and possibly more poles on the stator than the rotor, or reluctance motors. The latter may be without permanent magnets, just poles that are induced on the rotor then pulled into alignment by timed stator windings. However, the term stepper motor tends to be used for motors that are designed specifically to be operated in a mode where they are frequently stopped with the rotor in a defined angular position; this page describes more general BLDC motor principles, though there is overlap.

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ARTIFICIAL PASSENGER

2011-08-20T00:07:00.000-07:00

The AP is an artificial intelligence–based companion that will be resident in software and chips embedded in the automobile dashboard. The heart of the system is a conversation planner that holds a profile of you, including details of your interests and profession.
A microphone picks up your answer and breaks it down into separate words with speech-recognition software. A camera built into the dashboard also tracks your lip movements to improve the accuracy of the speech recognition. A voice analyzer then looks for signs of tiredness by checking to see if the answer matches your profile. Slow responses and a lack of intonation are signs of fatigue.
This research suggests that we can make predictions about various aspects of driver performance based on what we glean from the movements of a driver’s eyes and that a system can eventually be developed to capture this data and use it to alert people when their driving has become significantly impaired by fatigue.

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Remote Frame Buffer (RFB) Protocol

2011-01-28T21:28:00.000-08:00

Remote Desktop Softwares are those softwares which provide Remote Access. Remote Access means the ability of a user to log onto a remote computer or network from a distant location. This usually comprises of computers, a Network, and some remote access software to connect to the network. Since this involves clients and servers connected across a network,a protocol is essential for efficient communication between them. RFB protocol is one of such protocols which is used by the client and servers for communicating with each other and thereby making Remote Access possible. The purpose of this Paper is to give a general idea as to how this Protocol actually works. This paper also gives a broad idea about the various messages of this protocol and how these messages are send and interpreted by the client and server modules. This Paper also includes a Simple implementation of the Protocol which shows the various messages and methods and how this protocol is practically used for gaining remote access.

RFB (remote framebuffer) is a simple and efficient protocol which provide remote access to graphical user interfaces.As its Name Suggests it works at the framebuffer level and thus it is applicable to all windowing systems and applications. Eg. X11, Windows and Macintosh. It should also be noted that there are other Protocols available and RFB is the protocol which is used in Virtual Network Computing (VNC) and its various forms. Due to increase in number of Software products and Services such protocols play a very important role nowadays.

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Pill Camera

2011-01-21T22:57:00.000-08:00

The aim of technology is to make products in a large scale for cheaper prices and increased quality. The current technologies have attained a part of it, but the manufacturing technology is at macro level. The future lies in manufacturing product right from the molecular level. Research in this direction started way back in eighties. At that time manufacturing at molecular and atomic level was laughed about. But due to advent of nanotecnlogy we have realized it to a certain level. One such product manufactured is PILL CAMERA, which is used for the treatment of cancer, ulcer and anemia. It has made revolution in the field of medicine. This tiny capsule can pass through our body, without causing any harm.

It takes pictures of our intestine and transmits the same to the receiver of the Computer analysis of our digestive system. This process can help in tracking any kind of disease related to digestive system. Also we have discussed the drawbacks of PILL CAMERA and how these drawbacks can be overcome using Grain sized motor and bi-directional wireless telemetry capsule .Besides this we have reviewed the process of manufacturing products using nanotechnology.Some other important applications are also discussed along with their potential
impacts on various fields.

We have made great progress in manufacturing products. Looking back from where we stand now, we started from flint knives and stone tools and reached the stage where we make such tools with more precision than ever. The leap in technology is great but it is not going to stop here. With our present technology we manufacture products by casting, milling, grinding, chipping and the likes. With these technologies we have made more things at a lower cost and greater precision than ever before. In the manufacture of these products we have been arranging atoms in great thundering statistical herds. All of us know manufactured products are made from atoms. The properties of those products depend on how those atoms are arranged. If we rearrange atoms in dirt, water and air we get grass. The next step in manufacturing technology is to manufacture products at molecular level. The technology used to achieve manufacturing at molecular level is “NANOTECHNOLOGY”. Nanotechnology is the creation of useful materials, devices and system through manipulation of such miniscule matter (nanometer).Nanotechnology deals with objects measured in nanometers. Nanometer can be visualized as billionth of a meter or millionth of a millimeter or it is 1/80000 width of human hair.

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Transparent Electronics

2011-01-21T22:54:00.001-08:00

Transparent electronics is an emerging science and technology field focused on producing ‘invisible’ electronic circuitry and opto-electronic devices. Applications include consumer electronics, new energy sources, and transportation; for example, automobile windshields could transmit visual information to the driver. Glass in almost any setting could also double as an electronic device, possibly improving security systems or offering transparent displays. In a similar vein, windows could be used to produce electrical power. Other civilian and military applications in this research field include realtime wearable displays.

As for conventional Si/III–V-based electronics, the basic device structure is based on semiconductor junctions and transistors. However, the device building block materials, the semiconductor, the electric contacts, and the dielectric/passivation layers, must now be transparent in the visible –a true challenge! Therefore, the first scientific goal of this technology must be to discover, understand, and implement transparent high-performance electronic materials. The second goal is their implementation and evaluation in transistor and circuit structures. The third goal relates to achieving application-specific properties since transistor performance and materials property requirements vary, depending on the final product device specifications. Consequently, to enable this revolutionary technology requires bringing together expertise from various pure and applied sciences, including materials science, chemistry, physics, electrical/electronic/circuit engineering, and display science.

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3D Password

2011-01-21T22:53:00.000-08:00

Normally the authentication scheme the user undergoes is particularly very lenient or very strict. Throughout the years authentication has been a very interesting approach. With all the means of technology developing, it can be very easy for 'others' to fabricate or to steal identity or to hack someone’s password. Therefore many algorithms have come up each with an interesting approach toward calculation of a secret key. The algorithms are such based to pick a random number in the range of 10^6 and therefore the possibilities of the sane number coming is rare.

Users nowadays are provided with major password stereotypes such as textual passwords, biometric scanning, tokens or cards (such as an ATM) etc .Mostly textual passwords follow an encryption algorithm as mentioned above. Biometric scanning is your "natural" signature and Cards or Tokens prove your validity. But some people hate the fact to carry around their cards, some refuse to undergo strong IR exposure to their retinas(Biometric scanning).Mostly textual passwords, nowadays, are kept very simple say a word from the dictionary or their pet names, girlfriends etc. Years back Klein performed such tests and he could crack 10-15 passwords per day. Now with the technology change, fast processors and many tools on the Internet this has become a Child's Play.

Therefore we present our idea, the 3D passwords which are more customizable and very interesting way of authentication. Now the passwords are based on the fact of Human memory. Generally simple passwords are set so as to quickly recall them. The human memory, in our scheme has to undergo the facts of Recognition, Recalling, Biometrics or Token based authentication. Once implemented and you log in to a secure site, the 3D password GUI opens up. This is an additional textual password which the user can simply put. Once he goes through the first authentication, a 3D virtual room will open on the screen. In our case, let’s say a virtual garage. Now in a day to day garage one will find all sorts of tools, equipments, etc.each of them having unique properties. The user will then interact with these properties accordingly. Each object in the 3D space, can be moved around in an (x,y,z) plane. That’s the moving attribute of each object. This property is common to all the objects in the space. Suppose a user logs in and enters the garage. He sees and picks a screw-driver (initial position in xyz coordinates (5, 5, 5)) and moves it 5 places to his right (in XY plane i.e. (10, 5, 5).That can be identified as an authentication. Only the true user understands and recognizes the object which he has to choose among many. This is the Recall and Recognition part of human memory coming into play. Interestingly, a password can be set as approaching a radio and setting its frequency to number only the user knows. Security can be enhanced by the fact of including Cards and Biometric scanner as input. There can be levels of authentication a user can undergo.

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Artificial Turf

2011-01-07T22:40:00.000-08:00

Artificial turf is a surface manufactured from synthetic fibres made to look like natural grass. It is most often used in arenas for sports that were originally or are normally played on grass. The main reason is maintenance — artificial turf resists heavy use, such as in sports, better, and requires no irrigation or trimming. Domed, covered, and partially covered stadiums may require artificial turf because of the difficulty of getting grass enough sunlight to stay healthy.
A common misconception is that the new synthetic grass is similar to the household carpet. In fact this intricate system involves properly constructing a porous sub base, and using turf with holes in the back, then the product is filled with sand/rubber granule mix which we call infill.

Artificial turf, also known as synthetic turf, has found a prominent place in sports today. Manufactured from synthetic materials, this man-made surface looks like natural grass. With the international sports associations and governing bodies approving the use of artificial surfaces, sports like football and hockey, which were originally played on natural grass, have moved to these artificial sports pitches. So, next time, you find players playing on an artificial hockey pitch, do not be surprised.

Artificial turf has been manufactured since the early 1960s, and was originally produced by Chemstrand Company (later renamed Monsanto Textiles Company). It is produced using manufacturing processes similar to those used in the carpet industry. Since the 1960s, the product has been improved through new designs and better materials. The newest synthetic turf products have been chemically treated to be resistant to ultraviolet rays, and the materials have been improved to be more wear-resistant, less abrasive, and, for some applications, more similar to natural grass.

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MOBILE PHONE CLONING

2011-01-07T22:38:00.000-08:00

Mobile communication has been readily available for several years, and is major business today. It provides a valuable service to its users who are willing to pay a considerable premium over a fixed line phone, to be able to walk and talk freely. Because of its usefulness and the money involved in the business, it is subject to fraud. Unfortunately, the advance of security standards has not kept pace with the dissemination of mobile communication.
Some of the features of mobile communication make it an alluring target for criminals. It is a relatively new invention, so not all people are quite familiar with its possibilities, in good or in bad. Its newness also means intense competition among mobile phone service providers as they are attracting customers. The major threat to mobile phone is from cloning.

Cell phone cloning is copying the identity of one mobile telephone to another mobile telephone.Usually this is done for the purpose of making fraudulent telephone calls. The bills for the calls go to the legitimate subscriber. The cloner is also able to make effectively anonymous calls, which attracts another group of interested users.
Cloning is the process of taking the programmed information that is stored in a legitimate mobile phone and illegally programming the identical information into another mobile phone. The result is that the "cloned" phone can make and receive calls and the charges for those calls are billed to the legitimate subscriber. The service provider network does not have a way to differentiate between the legitimate phone and the "cloned" phone.

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Nanomachines

2011-01-07T22:36:00.000-08:00

Nanotechnology is the manipulation of matter on the nanoscale. A nanometer is a very small measure of length-it is one billionth of a meter, a length so small that only three or four atoms lined up in a row would be a nanometer. So, nanotechnology involves designing and building materials and devices where the basic structure of the material or device is specified on the scale of one or a few nanometers. Ultimately, nanotechnology will mean materials and devices in which every atom is assigned a place, and having every atom in the right place will be essential for the functioning of the device.

The kinds of product that could be built will range from microscopic, very powerful computers to super strong materials ten times as strong as steel, but much lighter too, food to other biological tissues. All these products would be very inexpensive because the molecular machines that built them will basically take atoms from garbage or dirt, and energy from sunshine, and rearrange those atoms into useful products, just like trees and crops take dirt, water and sunshine and rearrange the atoms into wood and food.

Nanotechnology cannot be defined as a definite branch of science but different from the conventional ones that we have as of now. It is set to encompass all the technological aspects that we have today and is nothing but the extension of scientific applications to a microscopic scale and thereby reaching closer to perfection if not right there.

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AIR CAR

2011-01-07T22:32:00.000-08:00

The Air car is a car currently being developed and, eventually, manufactured by Moteur Developpement International (MDI), founded by the French inventor Guy Nègre. It will be sold by this company too, as well as by ZevCat, a US company, based in California.The air car is powered by an air engine, specifically tailored for the car. The used air engine is being manufactured by CQFD Air solution, a company closely linked to MDI.The engine is powered by compressed air, stored in a glass or carbon-fibre tank at 4500 psi. The engine has injection similar to normal engines, but uses special crankshafts and pistons, which remain at top dead center for about 70% of the engine's cycle; this allows more power to be developed in the engine.

Though some consider the car to be pollution-free, it must be taken into account that the tanks are recharged using electric (or gasoline) compressors, resulting in some pollution, if the electricity used to operate the compressors comes from polluting power plants (such as gas-, or coal-power plants). Solar power could possibly be used to power the compressors at fuel station.

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FLUID AMPLIFIERS

2011-01-07T22:29:00.000-08:00

When one stream of fluid is permitted to impinge on another, direction of flow changes and the tendency of a fluid to strike the wall also changes. This concept gives rise to a new engineering system known as ‘fluidics. The term fluidics is the contraction of the words fluid and logic. Tremendous progress has been made in last twenty years in design and application of fluidic devices.

The current interest in fluidics for logic and control function was launched by the U.S Army’sHarry Diamond Laboratories. In March 1960 this laboratories invented the first fluid amplifier. This work was later expanded through a series of research and development contracts and the work reported in this section was sponsored by the U.S Airforce.The environmental capability of fluidic devices permits direct measurement of required control parameters within the engine.
These devices are more economical, faster and smaller than hydraulic control elements employing moving parts such as valves etc. Fluid devices have no moving parts hence they are more reliable and have long life. Fluidics is now offering an alternative to some other devices being operated with the help of electronics. It can operate where electronic devices are unsatisfactory, such as high temperature, humidity, in presence of severe vibrations, in high fire risk or where ionizing radiations are presents.

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Methanol Fueled Marine Diesel Engine

2011-01-07T22:26:00.000-08:00

Nowadays concerns about methanol have increased from the viewpoints of environmental protection and versatility of fuels at a global scale. Energetic research on methanol-fueled automobile engines has been forwarded from the viewpoints of low environmental pollution and the use of alternate fuel since the oil crisis, and they are now being tested on vehicles in various countries in the world. Desire for saving of maintenance cost and labour prevails as well as the environmental problems in the field of marine engines. From these motives scientists have carried out research and development of a methanol fueled marine diesel engine which is quite different from automobile engines in the size, main particulars, working condition and durability.

Although scientists have made a great use of invaluable knowledge from automotive technology, some special studies were necessary due to these differences. Ignition method is a typical one. Dual fuel injection system was tried for trouble-free ignition of methanol fuel. This system is thought to be the most favourable ignition method for marine diesel engines which have to withstand quick load change and accept no misfiring.

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Mine Detection Using Radar Bullets

2011-01-07T22:22:00.000-08:00

Now a day in places like Afghanistan and Iraq we know that land mines are causing serious threat to the lives of civilians. The mines that are implanted during the wartime may remain undetected for several decades and may suddenly be activated after that. Also during wartime mines implanted by our enemy countries are to be detected and diffused properly in order to save the lives of our soldiers. So we should say that detecting landmines is important for every country today.

Land mines are a case of serious threats to the life of civilians, especially in mine-affected countries like Afghanistan and Iraq .The mines which are implanted during the war time may remain undetected for several decades and may suddenly be activated after that. There are several methods for detection of land mines, such as metal detection and explosive detection. These ways of detection are dangerous because they are done very close to the mine.

A safe method for detecting land mines is “mine detection using radar bullets”. As the name suggests detection is done using Radar Bullets and hence can be done further away from the mine. Detection is usually done from helicopters. Researchers are being conducted to overcome certain inefficiencies of this method.

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Overall Equipment Effectiveness (OEE)

2011-01-07T22:18:00.000-08:00

In today's economy, you're expected to continuously improve your Return on Total Capital. And as capital to build new, more efficient plants becomes more difficult to obtain, you often have to meet growing production demands with current equipment and facilities — while continuing to cut costs.

There are several ways you can optimize your processes to improve profitability. But it can be difficult to understand the overall effectiveness of a complex operation so you can decide where to make improvements. That's especially true when the process involves multiple pieces of equipment that affect each other's effectiveness.

One metric that can help you meet this challenge is Overall Equipment Effectiveness, or OEE. OEE measures the health and reliability of a process relative to the desired operating level. It can show you how well you're utilizing resources, including equipment and labor, to satisfy customers by matching product quality and supply requirements.

Overall Equipment Effectiveness (OEE) measures total performance by relating the availability of a process to its productivity and output quality.

OEE addresses all losses caused by the equipment, including
• Not being available when needed because of breakdowns or set-up and adjustment losses
• Not running at the optimum rate because of reduced speed or idling and minor stoppage losses
• Not producing first-pass A1 quality output because of defects and rework or start-up losses.

OEE was first used by Seiichi Nakajima, the founder of total productive maintenance (TPM), in describing a fundamental measure for tracking production performance. He challenged the complacent view of effectiveness by focusing not simply on keeping equipment running smoothly, but on creating a sense of joint responsibility between operators and maintenance workers to extend and optimize overall equipment performance.

First applied in discrete manufacturing, OEE is now used throughout process, batch, and discrete production plants.

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Humanoid robots used for surveillance

2010-11-20T01:30:00.000-08:00

Today is a world of new scientific invention. As this paper includes the use of humanoid robots in the field of security. There is a wide range of use of robot like in restaurant, in spying; in medical .our main objective is to bring this humanoid robot in the field of surveillance. My paper will give immense use to the army personnel those who are survellancing in the remote areas of the India. Now question arises why only humanoid robots used for the surveillance purpose? Now for this answer take the example of Mumbai terror attack the terrorist have done the damage for 72 hrs.now the N.S.G doesn’t know how many terrorist are there in hotel Taj .for this reason the robots are designed in a such a way to counter such terror activities .
This paper presents some modification in the robot i.e. to use the metal detector, infrared cameras for sensing in the very dim light or no light .temperature detector for detecting the human inside the building. In my paper I have used 10 mega pixel camera 360 rotation to get the clear cut view of the inside building .so this will help the army personnel to counter strike with the terrorist. There will be fewer casualties to army as well as human being. My motive for bringing this paper to you that there is a great scope of enhancement in the field of robotics for the security inside the country. The robot will also carry insurgency operation in country for countering terrorism. Human-Robot has recently received considerable attention in the academic community, in labs, in technology companies, and through the media. Because of this attention, it is desirable to present a survey of HR to serve as a tutorial to people outside the field and to promote discussion of a unified vision of HR within the field.

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Tunable spiral inductors

2010-11-20T01:25:00.000-08:00

A tunable micro-electromechanical systems integrated inductor with a large-displacement electro-thermal actuator is discussed here. Based on a transformer configuration, the inductance of a spiral inductor is tuned by controlling the relative position of a magnetically coupled short-circuited loop. Theoretical studies are backed by a variety of fabricated and measured tunable inductors that show a 2 : 1 inductance tuning ratio over a wide frequency range of approximately 25 GHz. In addition, the maximum and minimum quality factors of the tunable inductor are measured to be 26 and 10 which is high compared to previous designs. They can considerably extend the tuning capabilities of critical reconfigurable circuits such as tunable impedance matching circuits, phase shifters voltage controlled oscillators, and low noise amplifiers.

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Petrogasoline Purity Tester

2010-11-20T01:22:00.000-08:00

Recent years have witnessed dramatic progress in the design and development of fiber optic sensors as detection of chemical species is important in many industrial and chemical processes in addition to environmental control. Fiber optic sensors offer several advantages over conventional chemical sensing systems, specifically immunity to electromagnetic interference, possibility of distributed sensing over long lengths of fiber and their capability for safe operation in hazardous environments. Fiber optic chemical sensors include refractometric` sensors and evanescent wave absorption sensors, more recently indicator mediated, in which the evanescent field of guided light is absorbed by the chemical of interest.

Adulteration of petroleum products especially petrol and diesel has become a serious problem. Kerosene is the most important domestic fuel for economically weaker sections of society and hence is heavily subsidized. The large differences in the prices of petrol, diesel and kerosene, the easy availability of kerosene and the fact that it is miscible in petrol and diesel, make the unhealthy and unethical practice of adulteration of petrol and diesel. This not only results in less availability of kerosene to the poor, but results in severely damaging automotive engines and increased motor vehicle emissions which are a cause of major concern to environmental pollution.

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Microwave Superconductivity

2010-11-20T01:19:00.000-08:00

Superconductivity is a phenomenon occurring in certain materials generally at very low temperatures, characterized by exactly zero electrical resistance and the exclusion of the interior magnetic field (the Meissner effect). It was discovered by Heike Kamerlingh Onnes in 1911. Applying the principle of Superconductivity in microwave and millimeter-wave (mm-wave) regions, components with superior performance can be fabricated. Major problem during the earlier days was the that the cryogenic burden has been perceived as too great compared to the performance advantage that could be realized. There were very specialized applications, such as low-noise microwave and mm-wave mixers and detectors, for the highly demanding radio astronomy applications where the performance gained was worth the effort and complexity. With the discovery of high temperature superconductors like copper oxide, rapid progress was made in the field of microwave superconductivity.

This topic describes the properties of superconductivity that can be exploited in microwave and mm-wave technologies to yield components with appreciable performance enhancement over conventional systems. Superconducting signal transmission lines can yield low attenuation, zero-dispersion signal transmission behavior for signals with frequency components less than about one tenth the superconducting energy gap. No other known microwave device technology can provide a similar behavior. Superconductors have also been used to make high speed digital circuits, josephsons junction and RF and microwave filters for mobile phone base stations.

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3D TELEVISION

2010-11-20T01:15:00.000-08:00

Three-dimensional TV is expected to be the next revolution in the TV history. They implemented a 3D TV prototype system with real-time acquisition transmission, & 3D display of dynamic scenes. They developed a distributed scalable architecture to manage the high computation & bandwidth demands. 3D display shows high-resolution stereoscopic color images for multiple viewpoints without special glasses. This is first real time end-to-end 3D TV system with enough views & resolution to provide a truly immersive 3D experience.Japan plans to make this futuristic television a commercial reality by 2020as part of abroad national project that will bring together researchers from the government, technology companies and academia. The targeted "virtual reality" television would allow people to view high definitionimages in 3D from any angle, in addition to being able to touch and smell the objects being projected upwards from a screen to the floor.

Three-dimensional TV is expected to be the next revolution in the TV history. They implemented a 3D TV prototype system with real-time acquisition transmission, & 3D display of dynamic scenes. They developed a distributed scalable architecture to manage the high computation & bandwidth demands. 3D display shows high-resolution stereoscopic color images for multiple viewpoints without special glasses. This is first real time end-to-end 3D TV system with enough views & resolution to provide a truly immersive 3D experience.

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Phishing

2010-11-19T23:57:00.000-08:00

In the field of computer security, phishing is the criminally fraudulent process of attempting to acquire sensitive information such as usernames, passwords and credit card details, by masquerading as a trustworthy entity in an electronic attempting to acquire sensitive information such as usernames, passwords and credit card details, by masquerading as a trustworthy entity in an electronic communication. Phishing is a fraudulent e-mail that attempts to get you to divulge personal data that can then be used for illegitimate purposes.

There are many variations on this scheme. It is possible to Phish for other information in additions to usernames and passwords such as credit card numbers, bank account numbers, social security numbers and mothers’ maiden names. Phishing presents direct risks through the use of stolen credentials and indirect risk to institutions that conduct business on line through erosion of customer confidence. The damage caused by phishing ranges from denial of access to e-mail to substantial financial loss.

This report also concerned with anti-phishing techniques. There are several different techniques to combat phishing, including legislation and technology created specifically to protect against phishing. No single technology will completely stop phishing. However a combination of good organization and practice, proper application of current technologies and improvements in security technology has the potential to drastically reduce the prevalence of phishing and the losses suffered from it. Anti-phishing software and computer programs are designed to prevent the occurrence of phishing and trespassing on confidential information. Anti-phishing software is designed to track websites and monitor activity; any suspicious behavior can be automatically reported and even reviewed as a report after a period of time.

This also includes detecting phishing attacks, how to prevent and avoid being scammed, how to react when you suspect or reveal a phishing attack and what you can do to help stop phishers.

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Green Cloud

2010-11-10T02:30:00.000-08:00

Cloud computing is offering utility oriented IT services to users world wide. It enables hosting of applications from consumer,scientific and business domains. However data centres hosting cloud computing applications consume huge amounts of energy,contributing to high operational costs and carbon footprints to the environment. With energy shortages and global climate change leading our concerns these days, the power consumption of data centers has become a key issue. Therefore,we need green cloud computing solutions that can not only save energy,but also reduce operational costs. The vision for energy efficient management of cloud computing environments is presented here. A green scheduling algorithm which works by powering down servers when they are not in use is also presented.

In 1969, Leonard Kleinrock , one of the chief scientists of the original Advanced Research Projects Agency Network (ARPANET) which seeded the Internet, said: “As of now, computer networks are still in their infancy, but as they grow up and become sophisticated, we will probably see the spread of „computer utilities‟ which, like present electric and telephone utilities, will service individual homes and offices across the country.” This vision of computing utilities based on a service provisioning model anticipated the massive transformation of the entire computing industry in the 21st century whereby computing services will be readily available on demand, like other utility services available in today’s society. Similarly, users (consumers) need to pay providers only when they access the computing services. In addition, consumers no longer need to invest heavily or encounter difficulties in building and maintaining complex IT infrastructure.

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Mobile Adhoc Network (MANET)

2010-11-10T02:27:00.000-08:00

The term MANET (Mobile Adhoc Network)refers to a multihop packet based wireless network composed of a set of mobile nodes that can communicate and move at the same time , without using any kind of fixed wired infrastructure. MNET are actually self organizing and adaptive networks that can be formed and deformed on-the-fly without the need of any centralized administration.

As for other packet data networks, one –to-one communication in a MANET is achieved by unicast routing each single packet. Routing in MANET is challenging due to the constraints existing on the transmission bandwidth battery power and CPU time and the requirement to cope with the frequent topological changes resulting from the mobility of the nodes. Nodes of a MANET cooperate in the task of routing packets to destination nodes since each node of the network is able to communicate only with those nodes located within its transmission radius R, while the source and destination nodes can be located at a distance much higher than R.

A first attempt to cope with the mobility is to use the specific techniques aimed to tailoring the conventional routing protocols to the mobile environment while preserving their nature. For this reason the protocol designed around such techniques are referred to as table-driven or proactive protocols. To guarantee that routing tables are up to date and reflect the actual network topology, nodes running a protocol continuously exchange route updates and re calculate paths to all possible destinations. The main advantage of the proactive protocols is that a route is immediately available when is needed for data transmissions.

A different approach in the design of the routing protocol is to calculate a path only when it is necessary for data transmission. These types of protocols are called as the reactive protocols or on-demand routing protocols. A reactive protocol is characterized by a path discovery procedure and a maintenance procedure. Path discovery is based on a query –reply cycle that adopts flooding of queries. The destination is eventually reached by the query an at least one reply is generated. Path discovery procedure is called when there is a need for data transmission and the source does not the path to the destination. Discovered paths are maintained by the route maintance procedure until they are no longer in used.

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Android

2010-11-10T02:25:00.000-08:00

Android is a software stack for mobile devices that includes an operating system, middleware and key applications. Android is a software platform and operating system for mobile devices based on the Linux operating system and developed by Google and the Open Handset Alliance. It allows developers to write managed code in a Java-like language that utilizes Google-developed Java libraries, but does not support programs developed in native code.
The unveiling of the Android platform on 5 November 2007 was announced with the founding of the Open Handset Alliance, a consortium of 34 hardware, software and telecom companies devoted to advancing open standards for mobile devices. When released in 2008, most of the Android platform will be made available under the Apache free-software and open-source license.

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