please somebody give me ppt about pulse detonation engine ....etc

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A pulse detonation engine is an unsteady propulsive device in which the combustion chamber is periodically filled with a reactive gas mixture, a detonation is initiated, the detonation propagates through the chamber, and the product gases are exhausted. The high pressures and resultant momentum flux out of the chamber generate thrust.

Quasi-steady thrust levels can be achieved by repeating this cycle at relatively high frequency and/or using more than one combustion chamber operating out of phase.A pulse ....etc

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1. INTRODUCTION
Rocket engines that work much like an automobile engine are being developed at NASAâ„¢s Marshall Space Flight Center in Huntsville, Ala. Pulse detonation rocket engines offer a lightweight, low-cost alternative for space transportation. Pulse detonation rocket engine technology is being developed for upper stages that boost satellites to higher orbits. The advanced propulsion technology could also be used for lunar and planetary Landers and excursion vehicles that require throttle ....etc

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Pulsed Detonation Thermal Spray

Abstract

Pulsed detonation thermal spray coating is used to enhance the material properties at the surface of an object. The present research implements computational fluid dynamic modeling to identify the efficiency of energy and mass delivered to potential target locations. Six cases of a hydrogen-air mixture are used to investigate the gas flow from the instant of ignition to the ins ....etc

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Effect of substrate temperature on the growth of ITO thin films
M. Nisha, S. Anusha, Aldrin Antony, R. Manoj, M.K. Jayaraj
*
Optoelectronics Device Laboratory, Department of Physics, Cochin University of Science and Technology,
Kochi 682 022, Kerala, India
Received 2 November 2004; received in revised form 20 February 2005; accepted 20 February 2005
Abstract
Indium tin oxide (ITO) thin films were deposited onto glass substrates by rf magnetron sputtering of ITO target and the
influence of substrate temperature on the properties of the f ....etc

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knocking phenomenon and its remedy.how it happens and its consequenses ....etc

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please send the ppt of formulation and evaluation of buccal films as i requireit for a seminar.so please send it ....etc

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Presented by:
Professor Chaim N. Sukenik

Abstract

Reaction chemistry at ordered interfaces; patterning nanoscale assemblies;
monolayers as ultra-thin barrier layers on metals, alloys and polymer composites; surface modification to control biocompatibity; ceramic thin films.

For more details, visit
http://nanocenter.biu.ac.il/ppt/111.ppt
....etc

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PULSE DETONATION ENGINE TECHNOLOGY: AN OVERVIEW


Introduction
Imagine aircraft crossing continents and oceans at higher speeds and efficiencies.
Imagine spacecraft launching with higher safety factors and lower costs. Imagine
military craft operating in many flight conditions with increased performance. This is the
potential for Pulse Detonation Engine (PDE) technology; it has the capability to
revolutionize the aviation industry.


Description of Pu ....etc

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Transparent and conductive ZnO:Al films deposited by large area reactive
magnetron sputtering
Abstract
A new coating technology has been developed for large area deposition of transparent and conductive ZnO:Al films. ReactiveAC magnetron sputtering from metallic Zn:Al has been performed at low substrate temperature below 200 8C using the newCleanMag technology of applied films based on moving magnets for layers with low defect density and with conventional reactiveAC magnetron sputtering using static magnets (Applied Films TwinMag). ....etc

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