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Abstract
Encryption algorithms can be used to help secure wireless communications, but securing data also consumes resources. The goal of this research is to provide users or system developers of personal digital assistants and applications with the associated time and energy costs of using specific encryption algorithms. Four block ciphers (RC2, Blowfish, XTEA, and AES) were considered. The experiments included encryption and decryption tasks with different cipher and file size combinations. The resource impact of the block ciphers w ....etc

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submitted by :-
Suhail ahmad mansoori


INTRODUCTION
A boiler is an enclosed vessel that provides a means for combustion heat to be transferred into water until it becomes heated water or steam. The hot water or steam under pressure is then usable for transferring the heat to a process. Water is a useful and cheap medium for transferring heat to a process. When water is boiled into steam its volume increases about 1,600 times, producing a force that is almost as explosive as gunpowder. This causes the boiler to ....etc

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The gas turbine has been an enormously successful power plant for aircraft and marine propulsion, and electric power generation, due to its lightweight, smooth and reliable operation, low emissions, and varied applications. Nevertheless, it is not very efficient in converting fuel energy to useful work, due to fundamental thermodynamic limitations imposed by turbo machinery technology.

In recent years, there is renewed interest in the potential high efficiency of alternative thermodynamic cycles and unsteady combustion systems for propul ....etc

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presented by:
Dr.S.Rajkumar


Energy Efficiency and GRIHA
Why Green Building ?
 “Unknowingly, the architecture and building community is responsible for almost half of all greenhouse gas emissions annually.
 The objective is to evolve a strategy to reduce energy use in buildings so as to reduce energy costs and the emission of greenhouse gas into the earth’s atmosphere.
 “A green building is designed, constructed and operated to minimize the total environmental impacts while enhancing user co ....etc

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Freescale Technologies for
Energy Efficiency

The design of an electronic system is almost always constrained by power and energy considerations—whether it is battery life for a mobile device, thermal power dissipation in a high-performance processor or ultra-low power consumption for a wireless sensing application. In addition, recent economic forces and increased environmental awareness have changed the landscape for new product design. Now energy efficiency is often the lead discussion as companies formulate ....etc

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Abstract
Portable systems demand energy efficiency in order to maximize battery life. IRAM architectures, which combine DRAM and a processor on the same chip in a DRAM process, are more energy efficient than conventional systems, The high density of DRAM permits a much larger amount of memory on-chip than a traditional SRAM cache design in a logic process. This allows most or all IRAM memory accesses to be satisfied on-chip. Thus there is much less need to drive high-capacitance o_-chip buses, which contribute signifficantly to the energy con ....etc

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please send me the ppt of design of high efficiency electrical motor for a hybrid electric vehicle plz plz plz............ as early as possible plz.... ....etc

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please send me data as soon as possible. I will be more thankful if you send the topic details by today itself....
Thanking you,
yours truely,
anil201. ....etc

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plz send me all the information of this topic............. ....etc

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