Ovonic Unified Memory

August 28th, 2009 by admin | 9 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

We are now living in a world driven by various electronic equipments. Semiconductors form the fundamental building blocks of the modern electronic world providing the brains and the memory of products all around us from washing machines to super computers. Semi conductors consist of array of transistors with each transistor being a simple switch between electrical 0 and 1. Now often bundled together in there 10’s of millions they form highly complex, intelligent, reliable semiconductor chips, which are small and cheap enough for proliferation into products all around us.

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Optical Switching

August 21st, 2009 by admin | 48 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

Explosive information demand in the internet world is creating  enormous needs for capacity expansion in next generation telecommunication networks. It is expected that the data- oriented network traffic will double every year.

Optical networks are widely regarded as the ultimate solution to the bandwidth needs of future communication systems. Optical fiber links deployed between nodes are capable to carry terabits of information but the electronic switching at the nodes limit the bandwidth of a network. Optical switches at the nodes will overcome this limitation.

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Optical Computing Technology

August 20th, 2009 by admin | 16 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

With the growth of computing technology the need of high performance computers (HPC) has significantly increased. Optics has been used in computing for a number of years but the main emphasis has been and continues to be to link portions of computers, for communications, or more intrinsically in devices that have some optical application or component (optical pattern recognition etc.)

Optical computing was a hot research area in 1980’s.But the work tapered off due to materials limitations that prevented optochips from getting small enough and cheap enough beyond laboratory curiosities. Now, optical computers are back with advances in self-assembled conducting organic polymers that promise super-tiny of all optical chips.

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NavBelt and GuideCane

August 18th, 2009 by admin | 12 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

Recent revolutionary achievements in robotics and bioengineering have given scientists and engineers great opportunities and challenges to serve humanity.  This seminar is about “NavBelt and GuideCane”, which are two computerised devices based on advanced mobile robotic navigation for obstacle avoidance useful for visually impaired people.  This is “Bioengineering for people with disabilities”.

NavBelt is worn by the user like a belt and is equipped with an array of ultrasonic sensors.  It provides acoustic signals via a set of stereo earphones that guide the user around obstacles or displace a virtual acoustic panoramic image of the traveller’s surroundings.  One limitation of the NavBelt is that it is exceedingly difficult for the user to comprehend the guidance signals in time, to allow fast work.

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Multisensor Fusion and Integration

August 17th, 2009 by admin | 10 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

Sensor is a device that detects or senses the value or changes of value of the variable being measured. The term sensor some times is used instead of the term detector, primary element or transducer.

The fusion of information from sensors with different physical characteristics, such as light, sound, etc enhances the understanding of our surroundings and provide the basis for planning, decision making, and control of autonomous and intelligent machines.

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MOCT

August 6th, 2009 by admin | 10 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

An accurate electric current transducer is a key component of any power system instrumentation. To measure currents power stations and substations conventionally employ inductive type current transformers with core and windings. For high voltage applications, porcelain insulators and oil-impregnated materials have to be used to produce insulation between the primary bus and the secondary windings. The insulation structure has to be designed carefully to avoid electric field stresses, which could eventually cause insulation breakdown. The electric current path of the primary bus has to be designed properly to minimize the mechanical forces on the primary conductors for through faults. The reliability of  conventional high-voltage current transformers have been questioned because of their violent destructive failures which caused fires and impact damage to adjacent apparatus in the switchyards, electric damage to relays, and power service disruptions.

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MEMS Switches

August 6th, 2009 by admin | 2 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

Compound solid state switches such as GaAs MESFETs and PIN diodes are widely used in microwave and millimeter wave integrated circuits (MMICs) for telecommunications applications including signal routing, impedance matching networks, and adjustable gain amplifiers. However, these solid-state switches have a large insertion loss (typically 1 dB) in the on state and poor electrical isolation in the off state. The recent developments of micro-electro-mechanical systems (MEMS) have been continuously providing new and improved paradigms in the field of microwave applications. Different configured micromachined miniature switches have been reported.  Among these switches, capacitive membrane microwave switching devices present lower insertion loss, higher isolation, better nonlinearity and zero static power consumption.

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Micromechanical System for System-on-Chip Connectivity

August 6th, 2009 by admin | 3 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

MEMS technology has enabled us to realize advanced micro devices by using processes similar to VLSI technology. When MEMS devices are combined with other technologies new generation of innovative technology will b created. This will offer outstanding functionality.  Such technologies will have wide scale applications in fields ranging from automotive, aerodynamics, hydrodynamics, bio-medical and so forth. The main challenge is to integrate all these potentially non-compatible technologies into a single working microsystem that will offer outstanding functionality.

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Line-Reflect-Reflect Technique

August 6th, 2009 by admin | 5 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

LRR- LINE REFLECT REFLECT is a new self-calibration procedure for the calibration of vector network analyzers (VNA). VNA measure the complex transmission and reflection characteristics of microwave devices. The analyzers have to be calibrated in order to eliminate systematic errors from the measurement results.

The LRR calibration circuits consist of partly unknown standards, where L symbolizes a line element and R represents a symmetrical reflection standard. The calibration circuits are all of equal mechanical length. The obstacle, a symmetrical-reciprocal network is placed at three consecutive positions. The network consists of reflections, which might show a transmission. The calibration structures can be realized very easily as etched structures in microstrip technology.

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Landmine detection using impulse ground penetrating radar

August 6th, 2009 by admin | 42 Comments | Filed in Electronics Seminar Topics

This  Electronics Engineering Seminar Topic deals with the following:

Landmines and unexploded ordnance (UXO) are a legacy of war, insurrection, and guerilla activity. Landmines kill and maim approximately 26,000 people annually. In Cambodia, whole areas of arable land cannot be farmed due to the threat of landmines. United Nations relief operations are made more difficult and dangerous due to the mining of roads. Current demining techniques are heavily reliant on metal detectors and prodders.

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