From
Ravichandraprasad

Sir please send the ppt and report of the power paper ....etc

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solar sails powerpoint dow

Solar sails (also called light sails or photon sails) are a form of spacecraft propulsion using the radiation pressure (also called solar pressure) from stars to push large ultra-thin mirrors to high speeds. Light sails could also be driven by energy beams to extend their range of operations, which is strictly beam sailing rather than solar sailing.

Solar sail craft offer the possibility of low-cost operations combined with long operating lifetimes. Since they have few moving parts and use no propellant, they can po ....etc

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To get full information or details of presentation on solar sails please have a look on the pages

http://seminarsprojects.net/Thread-solar-sails

if you again feel trouble on presentation on solar sails please reply in that page and ask specific fields in presentation on solar sails ....etc

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Introduction

A solar sail is a very large mirror that reflects sunlight. As the photons of sunlight strike the sail and bounce off, they gently push the sail along by transferring momentum to the sail. Because there are so many photons from sunlight, and because they are constantly hitting the sail, there is a constant pressure (force per unit area) exerted on the sail that produces a constant acceleration of the spacecraft. Although the force on a solar-sail spacecraft is less than a conventional chemical r ....etc

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pls send complete project report of above menctined project 2 my mail..
[email protected] ....etc

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ABSTRACT
A solar cell is a semiconductor device that converts solar energy into electricity by the photovoltaic effect, representing the fundamental power conversion unit of a photovoltaic system ,works under the principle of a P-N junction that absorbs light , releases electrons and holes , creating a voltage in the cell , which is then applied to load; being environmentally aware, and with the price of living rising at an alarming rate, solar power, generating energy from the natural resources of the sun, has in recent times become quite a ....etc

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Solar Energy Materials & Solar Cells 89 (2005) 85 94
Optical and photoelectrical properties of b-In
2
S
3
thin films prepared by two-stage process
Rahana Yoosuf, M.K. Jayaraj

Department of Physics, Optoelectronics Device Laboratory, Cochin University of Science and Technology,
Kochi 682022, India
Received 11 December 2004; accepted 10 January 2005
Available online 8 March 2005
Abstract
b-In
2
S
3
films were grown on glass as well as on quartz substrates by rapid heating of metallic
indium films in H
2
S atmosphere. The e ....etc

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please give me appt on solarpowered refrigerator.
I am Bikash bhuyan. want a seminar repot on solar powered refrigrator ppt with a abstract. ....etc

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electrical conduction in -AgGaO
2 delafossite thin films
Optoelectronics Devices Laboratory, Department of Physics, Cochin University of Science and Technology,
Kochi 682022, India
Received 28 December 2005; accepted 26 March 2006; published online 23 May 2006
Thin films of delafossites of -AgGaO
2
were prepared on -Al
2
O
3
0001 and on Si 100 single crystal substrates by pulsed laser deposition. The films have a band gap of 4.12 eV and a transparency of more than 50% in the visible region. The electrical conductivity at 300 K was 3. ....etc

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i m nancy doing a final year b tech. i saw the solar tracking system topic i m interested to know more details about that project could u pls send the details of that project as soon as possible because its very urgent.

i nancy ....etc

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