hi Im Akash i would like to explain about home made air cooler ppt my sir told me to prepare thi ppt my friend said homemade air cooler ppt will be available here and now i am living at chilakaluripet guntur d.t a.p india i need help on this ppt if u do thi ppt then u send me mail my mail account is [email protected] ....etc

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Abstract
This paper present the design of an S-band circular microstrip patch antenna using a conventional coaxial probe feed technique. The antenna is designed to function within the frequency range of 2.0 GHz - 2.5 GHz, S-band. The antenna exhibited a return loss of -16dB and a directivity of 6.07dB. The microstrip patch antenna is designed on FR4 epoxy substrate and is to be feed with a 50 coaxial cable. The design of the antenna is done using MATLAB software and SonnetLite software for the electromagnetic simula ....etc

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Hi fans
I am looking for a detailed plan of a homemade ammonia absorption refrigeration to convert it to a solar powered one can any one help me?
thanks
E.mail: [email protected] ....etc

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can anyone advise me on how to find the right mesurements fo this antenna please ....etc

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Definition

The most important development in the computer communications industry in the 1990s is the evolution of the integrated services digital network (ISDN) and broadband ISDN (B-ISDN). The ISDN and B-ISDN have had a dramatic impact on the planning and deployment of intelligent digital networks providing integrated services for voice, data and video. Further, the work on the ISDN and B-ISDN standards has led to the development of two major new networking technologies; frame relay and asynchronous transfer mode (ATM). Frame relay and ATM ....etc

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Design and development of X-band micro strip patch antenna

Introduction

In high-performance aircraft, spacecraft, satellite and missile applications, where size, weight, cost, performance, ease of installation, and aerodynamic profiles are constraints, low profile antennas may be required. These antennas should have low profile, conformable to planar and non-planar surfaces, simple and inexpensive to manufacture using modern printed-circuit technology, mechanically robust when mounted on rigid surfaces, compatible with MMIC designs, and w ....etc

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homemade ammonia absorption refrigeration system

One of the hardest things to go off without the transition grid is cooling. Most other operations can be replaced by means of manually, but keeping cold or frozen food in hot weather is a unique demand in the world today. In the past, demand for cooling has been limited because most food was prepared fresh each day and very little was kept for several days, partly due to lack of mechanical cooling. The fast pace of life, many now living have led people depend on frozen or refrigerated food produ ....etc

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WMOD2B dual-band 900



General Safety

It is important to follow any special regulations regarding the use of radio equipment due in particular to the possibility of
radio frequency, RF, interference. Please follow the safety advice given below carefully.
Switch OFF your GSM Modem when in an aircraft. The use of cellular telephones in an aircraft may endanger the
operation of the aircraft, disrupt the cellular network and is illegal. Failure to observe this instruction may lead ....etc

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The most important development in the computer communications industry in the 1990s is the evolution of the integrated services digital network (ISDN) and broadband ISDN (B-ISDN). The ISDN and B-ISDN have had a dramatic impact on the planning and deployment of intelligent digital networks providing integrated services for voice, data and video. Further, the work on the ISDN and B-ISDN standards has led to the development of two major new networking technologies; frame relay and asynchronous transfer mode (ATM). Frame relay and ATM have become t ....etc

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Done by:
Ahmed Sudqi Hussein Abdul-Rahman
Ahmad Nasr Raja Mohammad
Supervised by:
Prof. Nihad Dib

Abstract
This report presents the design, implementation, and testing of a dual-band cell-phone jammer. This jammer works at GSM 900 and GSM 1800 simultaneously and thus jams the three well-known carriers in Jordan (Zain, Orange, and Umniah). This project went through two phases:
Phase one: studying the GSM-system to find the best jamming technique, establishing the system design and selecting suitable component ....etc

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