hi,
i have selected DTH as my seminar topic.Would you please post me related information such as its working principle,advantages,disadvantages etc. ....etc

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Direct-To-Home is a relatively recent development in the world of television distribution. ?Direct broadcast satellite? can either refer to the communications satellites themselves that deliver DBS service or the actual television service. DBS systems are commonly referred to as mini-dish systems. DBS uses the upper portion of the Ku band. Modified DBS systems can also run on C-band satellites and have been used by some networks in the past to get around legislation by some countries against reception of Ku-band transmissions. DBS systems a ....etc

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INTRODUCTION
In recent years, legislative and market requirements have driven the need to reduce fuel consumption while meeting increasingly stringent exhaust emissions. This trend has dictated increasing complexity in automotive engines and new approaches to engine design. A key research objective for the automotive engineering community has been the potential combination of gasoline-engine specific power with diesel-like engine efficiency in a cost-competitive, production-feasible power train. One pr ....etc

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Definition
Direct to home (DTH) television is a wireless system for delivering television programs directly to the viewer's house. In DTH television, the broadcast signals are transmitted from satellites orbiting the Earth to the viewer's house. Each satellite is located approximately 35,700 km above the Earth in geosynchronous orbit. These satellites receive the signals from the broadcast stations located on Earth and rebroadcast them to the Earth.

The viewer's dish picks up the signal from the satellite and passes it on to the receiver l ....etc

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hi,
i have selected DTH as my seminar topic.Would you please post me related information such as its working principle,advantages,disadvantages etc. ....etc

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please send in details on this topic ....etc

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ABSTRACT
DIRECT UTILIZATION OF SOLAR ENERGY
The main modes of direct collection of solar energy like passive solar system, solar heat collectors and thermal concentrating system are discussed in detail. Common designs adopted in these modes are also explained with suitable photographs. The main designs in thermal concentrating systems like parabolic trough, parabolic dish and central receiver are discussed in detail. The advantages and the future of solar energy are also discussed in brief. A general idea about the vari ....etc

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ABSTRACT
Compared with petrol, diesel is the lower quality product of petroleum family. Diesel particles are larger and heavier than petrol, thus more difficult to pulverize. Imperfect pulverization leads to more unburnt particles, hence more pollutant, lower fuel efficiency
and less power.
Common-rail technology is intended to improve the pulverization process. Conventional direct injection diesel engines must repeatedly generate fuel pressure for each injection. But in the CRDI engines the pressure ....etc

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