A Light emitting diodes (LEDs) have gained broad recognition as the ubiquitous little lights that tell us that our monitors are on, the phone is off the hook or the oven is hot semiconductor.

The basic principle behind the emission of light is that: When charge carrier pairs recombine in a semiconductor with an appropriate energy band-gap generates light. In a forward biased diode, little recombination occurs in the depletion layer. Most occurs in a few microns of either P- region or N ?region, depending on which one is lightly doped.

LE ....etc

[:=Read Full Message Here=:]

Light emitting diodes (LEDs) have gained broad recognition as the ubiquitous little lights that tell us that our monitors are on, the phone is off the hook or the oven is hot semiconductor. The basic principle behind the emission of light is that: When charge carrier pairs recombine in a semiconductor with an appropriate energy band-gap generates light. In a forward biased diode, little recombination occurs in the depletion layer. Most occurs in a few microns of either P- region or N –region, depending on which one is lightly doped. LED ....etc

[:=Read Full Message Here=:]

ABSTRACT

In the last years one of the main technological efforts in satellite communications is the integration of digital broadcast services with two-way communications: this is justified by the research of new business perspective and in the increase of technological efficiency.
Traditionally, common air interface (CAI) standards have been rigorously defined in great detail to ensure optimized operation for specific application and to permits the interoperability between the equipment of different manufactures devices. In this context, S ....etc

[:=Read Full Message Here=:]

seminar report of solid state lighting and ppt of solid state lighting
seminar report of solid state lighting and ppt of solid state lighting

....etc

[:=Read Full Message Here=:]

Author: Loren Wyard-Scott

Abstract

Here, students learn how solid state lighting technology can improve the lives of people in the developing world, making their evenings more productive and safer. In the laboratory, the students design a portable, solar-charged, LED lamp that can provide two hours of reading light. In the process, they learn about basic circuits, the engineering design cycle, and light. They also compare the efficiency, durability, and cost of lighting technologies.

For more details
[url=http://realworlde ....etc

[:=Read Full Message Here=:]

SOLID STATE STABILISER

ABSTRACT

The SOLID STATE STABILISER is an electronic device intended to provide a stable 230 V- 50 Hz output. The main purpose is to provide a constant voltage having a constant frequency. The input is taken from a common power supply of 230 V-50 Hz. The obtained voltage is converted to higher frequency and stepped up using a small ferrite core transformer. It is then converted to a lower frequency and stabilized to get the required regulated output voltage.

INTRODUCTION ....etc

[:=Read Full Message Here=:]

Solid-State Welding Processes


Cold Welding

Pressure is applied to the workpieces through dies or rolls

Preferably both work pieces should be ductile

The work pieces should cleaned thoroughly

Can not join dissimilar metals
....etc

[:=Read Full Message Here=:]

hello dear

Could you please forward a full report on solid state lighting, please!!
Waiting for your reply...
....etc

[:=Read Full Message Here=:]

INTRODUCTION
This is the Topical report for Task 6.0, Phase 2 of the Advanced Turbine Systems(ATS)
Program. The report describes work by Westinghouse and the subcontractor,
Gilbert/Commonwealth, in the fulfillment of completing Task 6.0.
A conceptual design for critical and noncritical components of the gas fired combustion
turbine system was completed. The conceptual design included specifications for the flange
to flange gas turbine, power plant components, and balance of plant equipment. The ATS
engine used ....etc

[:=Read Full Message Here=:]

I need illumination with solid state lighting ppt ....etc

[:=Read Full Message Here=:]