Abstract

Gasolines sold at our service stations typically have an octane rating between about 87 & 93, & fuels of such octane values are satisfactory for most automotive engines. However for high performance engines in particular, fuels of even higher octane ratings are required. Octane is a measure of a gasoline s antiknock performance its ability to resist knocking, which is a metallic rattling or pinging sound that results from uncontrolled combustion in the engine s cylinders. It may preven ....etc

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natural recycling vs human generated waste

On a yearly basis a human produces roughly 500 liters of urine and 50 liters of feces. These two products contain enough nutrients to grow most of the plants that this person needs as food. But instead of utilizing these 550 liters as a resource, we mix it with roughly 15,000 liters of water, and all goes down the drain. Before it reaches the sewage plant, if there is one, this slurry gets mixed with hundreds of pollutants along the way.

The conventional sewage plant rarely retains or destroys all ba ....etc

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Abstract:
The oil shocks of 1970s led to spiraling crude oil prices in the world market which prompted planners to view energy security as an issue of national strategic importance. Energy security has an important bearing on achieving national economic development goals and improving the quality of life of the people. World s dependence on crude oil will continue for most part of the 21st century but the continued dependence on crude oil is loaded against it with inherent price volatility linked to finite global r ....etc

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to get information about the topic Construction waste recycling full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-construction-waste-recycling-full-report--10092

http://seminarsprojects.net/Thread-reuse-of-plastic-waste-in-road-construction-full-report ....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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INTRODUCTION

Definition
Significance 9 million vehicles are dumped each year
1997 EU proposal ,
Manufacturer responsibility
Substance disposal should be reduced
Rate of material recovery increased
projected achievement by 2006 Jan. = 85%


THE DIRECTIVE

Restricts the use of certain heavy metals in new vehicles from 1 July 2003.
Introduces a 'certificate of destruction' for scrapped vehicles.
Requires producers to mark certain vehicle components to aid recycling.
Requires prod ....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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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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To get full information or details of plastic recycling project please have a look on the pages

http://seminarsprojects.net/Thread-recycling-of-plastics

if you again feel trouble on plastic recycling project please reply in that page and ask specific fields in plastic recycling project ....etc

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Abstract

With increasing demand of fuel CO2 emissions are increasing at a large rate, leading to greenhouse effect which has created an alarming condition all over the world, also increased prices, and within some duration fossil fuel will come to end. Today s need is to generate power efficiently and eco-friendly, also think of an alternative fuel source. The paper discusses the same, and gives the best solution for the above. As plants by photosynthesis generate food, the same way we can also generate f ....etc

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