Vertical Cavity surface Emission Lasers (VCSEL) are lasers that emit light from their surface in contrast with regular ???edge emittersâ„¢. Also they have got a vertical cavity , as the name suggests, which enables surface emission.???Vixels??? , as they are commonly called ,have several superior characteristics compared to their edge emitting counter parts.

VCSEL Semiconductor micro laser diodes which emit light perpendicular to their PN junction in a cylindrical beam vertically from the surface of a fabricated wafer and feature circul ....etc

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INFLUENCE OF SHAPE OF DIRECTRIX ON THE COST OF
RC CYLINDRICAL AND CONOIDAL SHELLS


1R.Gopi and 2Dr.N.Arunachalam
1PG student in Structural Engg, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu.
2Dean of Civil Engg, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu.


ABSTRACT
In order to study the most economical configuration of Cylindrical and Conoidal shells having different directrices to cover a given area, the following types of cylindrical and conoidal shell structures ....etc

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Hello.
How to calculate cylindrical parameters by theory purpose?
In short give me idea on cylindrical DRA design steps. ....etc

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I want ppt on klystron and its future scope . Plz send me ppt . It will b vry helpful for me . Thank you. ....etc

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I want to know about wo cavity klystron amplifier
....etc

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Explain the two cavity and Reflex klystron ....etc

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can i get two cavity klystron here {basic principle construction and proof}
urgently needed...... ....etc

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MICROMECHANICAL RESONATORS AS TUNERS IN WIRELESS DEVICES
RAJKRISHNAN.R
S7B

OVERVIEW
INTRODUCTION TO MEMS
MEMS RESONATORS
ARCHITECTURE
ADVANTAGES AND DISADVANTAGES
FABRICATION
FUTURE SCOPE AND CONCLUSIONS
REFERENCES




1) INTRODUCTION TO MEMS
The technology of very small mechanical devices driven by electricity.
1 to 100 micrometers in size.
Large surface area to volume ratio of MEMS, surface effects dominate volume effects
MEMS could ....etc

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sir,i want ppt of cylindrical high performance resonating antenna ....etc

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Presented By:
S.G. Lokhre, K. Virwanif , B. Gajananf , S.P. Pai, P.R. Apte

Solid State Electronics Department
Tata Institute of Fundamental Research
Homi Bhabha Road
Colaba, BOMBAY - 400 005, India

ABSTRACT

We have designed, fabricated and tested a balanced doubly suspended versatile, torsion and flexural, MEMS resonator structure. The doubly suspended structure has been used earlier for very precise high Q resonators but we wished to study the various vibration modes of such a structure. FEM analysis has been ....etc

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