why is it that variable wing geometry aircraft do not exist anymore ....etc

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Variable Voltage And Variable Frequency drives

Presented By:
P.NATARAJU S.E.V.S.RAGHU VARMA
3rd year E.E.E. 3rd year E.E.E.

Abstract:-
Our varying industrial needs demand more precise control of the outputs of our basic electrical prime movers i.e, THE MOTORS. Basically dc motors are easy to control compared to their ac counter parts, but they have their own limitations with increase in capacity. Conversely ac motors in particular squirrel cag ....etc

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Variable sweep wings
ABSTRACT
VARIABLE-SWEEP WING
A variable-sweep wing is a wing configuration that allows to alter planform for various flight conditions. A variable-sweep wing can be moved during flight-usually between a swept-back position and a straight position. This allows it to take advantage of the aerodynamics of a swept wing at high speeds while avoiding the drawbacks of such a design at lower speeds. It is successful in this respect, but the added mass and complexity required counter the benefits and stand ....etc

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Presented By:
R.J. Stafford, J.M. Mulloy, T.M. Yonushonis, H.G. Weber, and M.J. Patel
Cummins Engine Company

INTRODUCTION

Turbocharging of diesel engines has enhanced fuel economy and reduced diesel engine emissions. The initial applications of turbochargers to heavy duty diesel engines during the early 1970's reduced Bosch smoke (a measure of particulate matter used at the time) from 2.4 to 0.6 units. At the same time, engine specific fuel consumption was reduced from 0.36 Ib./bhp-hr to 0.35 ib./bhp-hr. Since that time, a vari ....etc

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Abstract
This paper Driving without wheels, Flying without wings deals with the present scenario of magnetic levitation (maglev) with Linear induction motor (LIM) .The magnetically levitated train has no wheels, but floats-- or surfs-- on an electromagnetic wave, enabling rides at 330 miles per hour. By employing no wheels, maglev eliminates the friction, and concomitant heat, associated with conventional wheel-on-rail train configurations. There are two basic types of non-contact Maglev systems Electro Dynamic Suspension (EDS), ....etc

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Someone give a seminar report on topic 'variable geometry turbocharger' ....etc

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i need this pdf file can you please make it available for me. thanx ....etc

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TURBO CHARGING BY VARIABLE VANE GEOMETRY



INTRODUCTION TO TURBOCHARGING


A turbocharger, or turbo, is a centrifugal compressor powered by a turbine which is driven by an engine's exhaust gases. Its benefit lies with the compressor increasing the pressure of air entering the engine thus resulting in greater performance (for either, or both, power & efficiency). They are popularly used with internal combustion engines (e.g. four-stroke engines like Otto cyc ....etc

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Wi-Fi the wireless wings

Abstract--In the recent decade Wi-Fi have got immense importance in many fields .Wi-Fi - short for wireless fidelity - is the commercial name for the 802.11 products that have flooded the corporate wireless local area network (WLAN) market and are becoming rapidly ingrained in our daily lives via public hotspots and digital home networks. In the following presentation we will be discussing about, what is Wi-Fi.?, Working of Wi-Fi, the Wi-Fi hotspots and its advantages. Wireless networks are ea ....etc

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I am a student of 6th sem engineering. I want to give a seminar on 'Delta wings'.. Please give me the seminar report of the above mentioned topic. Thank you. ....etc

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