A prototype of a fully electronic on-load semiconductor tap changer for power transformer has been
designed and built. With the emergence of high power semiconductor devices, problems associated with the mechanical on-load tap changer have been properly rectified. In this work, the prototype was constructed with triacs as the switching devices and microcontroller as the triggering circuit. The results obtained from this work show that the prototype has a faster time response of approximately 0.44s to react to any load chang ....etc

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Organic material that has semiconductor properties. Semiconductivity is exhibited by single molecules, short chain (oligomers) and organic polymers. Semiconducting small molecules (aromatic hydrocarbons) include the polycyclic aromatic compounds pentacene, anthracene,and The environment of surface electrons at 'solid-to-liquid' interfaces is somewhat extreme, subjected to intense local electric fields or harsh chemical pressures that high-density ionic charge or polarization of mobile molecules create. In this proceedings, we argue functions of ....etc

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Abstract:

In this paper, analysis of CDMA network with Optical Amplifiers has been done. As the optical amplifier provides gain as well as has nonlinear characterstics, gain is expected due to signal amplification as well as operation of SOAs as limiter due to gain saturation. In this paper results have been computed for with different SOA placements in a typical star topology employing CDMA. The results show that in a star topology network employing CDMA, placement of SOAs before CDMA decoder does provide benefit due to g ....etc

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I want the different topics which related to novel semiconductor devices.
Nihar Ranjan Panda Asst. Professor ....etc

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Billions of chips in today s computers , automobiles, cellphones , media cards ,and those cleverkey chain memories are powerless when idle , yet they dispense immense data and instructions at the flick of the switch. They are flash kind of memorychips , a type of electrically erasable and programmable read -only memory also used as DRAM, dynamic random access memory. Non volatility , flash s property , is the most crucial for electronic systems like cell phones to hold instructions and data needed to send , receive calls,and store phone numbers ....etc

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Over the years semiconductor devices have set a new trend in the field of electronics and created waves in the existing technology of memory storage. Flash memory which has been in use for long now, is now being replaced by new advents in technology of memory such as Ferro Electric Memory, Magneto resistive Type Memory and Ovonic Unified Memory. This paper contrasts the working of flash kind of memory used in Dynamic “ RAMS with that of the other types mentioned above. In brief, advantages over the flash kind of memory are evaluated a ....etc

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MOSFET
Metal Oxide Semiconductor Field Effect Transistors
 Different types of FETs
 Junction FET (JFET)
 Metal-Oxide-Semiconductor FET (MOSFET)
 Metal-Semiconductor FET (MESFET)
 Different types of FETs
 Junction FET (JFET)
 Different types of FETs
 Metal-Oxide-Semiconductor FET (MOSFET)
 Different types of FETs
 Metal-Semiconductor FET (MESFET)
Basic MOSFET (n-channel)
 The gate electrode is placed on top of a very thin insulating layer.
 There are a pair of s ....etc

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APPLICATION OF SEMICONDUCTOR STRAIN GAUGES IN MEASUREMENTS OF DYNAMIC STABILITY DERIVATIVE
Abstract
Low amplitude of signals in measurements ofstability derivatives is a known problem.Solution by applying semiconductor straingauges is presented. Foil strain gauge balancewas replaced with a semiconductor fivecomponentstrain gauge balance, andsemiconductor excitation moment sensor wasapplied. Wind tunnel test data are presented
1 Introduction
In the first dynamic stability tests performed inthe T-38 wind tunnel , the problem ....etc

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I need develop non conventional energies by slogans
I need develop non conventional energies by slogans ....etc

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Learning Objectives

After successfully completing this laboratory workshop, including the assigned reading, the lab blue sheets, the lab quizzes, and any required reports, the student will be able to:
• Describe how semiconductor conductivity varies with temperature.
• Draw a band diagram for a semiconductor.
• Describe how doping a semiconductor improves conductivity.
• Define n-type and p-type semiconductors.
• Relate the bonding type to the material ....etc

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