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Author: Tobias Dyck
Publisher:
ISBN: 9783958062085
Category :
Languages : en
Pages :
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Book Description
Author: Tobias Dyck
Publisher:
ISBN: 9783958062085
Category :
Languages : en
Pages :
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Book Description
Author: Arkadiusz Henryk Piekara
Publisher:
ISBN:
Category :
Languages : en
Pages : 3
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Book Description
Author: Roland Winston
Publisher: Elsevier
ISBN: 0080479731
Category : Technology & Engineering
Languages : en
Pages : 511
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Book Description
From its inception nearly 30 years ago, the optical subdiscipline now referred to as nonimaging optics, has experienced dramatic growth. The term nonimaging optics is concerned with applications where imaging formation is not important but where effective and efficient collection , concentration, transport and distribution of light energy is - i.e. solar energy conversion, signal detection, illumination optics, measurement and testing. This book will incorporate the substantial developments of the past decade in this field.* Includes all substantial developments of the past decade in the rapidly moving field of nonimaging optics* The only authoritative reference on nonimaging optics, from the leader in the field
Author: Robert Loyce Kirkpatrick
Publisher:
ISBN:
Category : Food storage pests
Languages : en
Pages : 20
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Abstract: Light trapping plays an important role in improving the conversion efficiency of thin-film solar cells. The good wideband light trapping is achieved using our periodically truncated cone Si nanowire (NW) structures, and their inherent mechanism is analyzed and simulated by FDTD solution software. Ordered cylinder Si NW structure with initial size of 80 nm and length of 200 nm is grown by pattern transfer and selective epitaxial growth. Truncated cone Si NW array is then obtained by thermal oxidation treatment. Its mean reflection in the range of 300–900 nm is lowered to be 5% using 140 nm long truncated cone Si NW structure, compared with that of 20% using cylinder counterparts. It indicates that periodically truncated Si cone structures trap the light efficiently to enhance the light harvesting in a wide spectral range and have the potential application in highly efficient NW solar cells.
Author: W.R. Fahrner
Publisher: Trans Tech Publications Ltd
ISBN: 3038131024
Category : Technology & Engineering
Languages : en
Pages : 208
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Book Description
The world of today must face up to two contradictory energy problems: on the one hand, there is the sharply growing consumer demand in countries such as China and India. On the other hand, natural resources are dwindling. Moreover, many of those countries which still possess substantial gas and oil supplies are politically unstable. As a result, renewable natural energy sources have received great attention. Among these, solar-cell technology is one of the most promising candidates. However, there still remains the problem of the manufacturing costs of such cells. Many attempts have been made to reduce the production costs of conventional solar cells (manufactured from monocrystalline silicon using diffusion methods) by instead using cheaper grades of silicon, and simpler pn-junction fabrication. That is the hero of this book; the heterojunction solar cell.
Author: Truman E. Hienton
Publisher:
ISBN:
Category : Insect traps
Languages : en
Pages : 144
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Book Description
Author: Elaine Kennedy Sutherland
Publisher:
ISBN:
Category : Forest ecology
Languages : en
Pages : 168
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Book Description
Author: Brian Victor Brown
Publisher: NRC Research Press
ISBN: 0660198339
Category : Science
Languages : en
Pages : 729
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Book Description
While volume 1 includes several introductory chapters and treats 42 families of flies in the Lower Diptera, volume 2 covers the remaining 64 families of flies that make up the Higher Diptera (or Cyclorrhapha). These include families of house flies, fruit flies, bot flies, flower flies and many other lesser-known groups. The text is accompanies by over 1660 line drawings and photographs.
Author: R. C. Muirhead-Thompson
Publisher: Academic Press
ISBN: 0080984231
Category : Science
Languages : en
Pages : 301
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Book Description
Insect trapping is a basic field research tool for many biologists, whether they are studying insect pests, disease vectors or insect ecology for its own sake. Any field entomologist contemplating a new insect trapping program or looking to improve or develop an existing scheme will benefit from this broad review of flying insect traps, in which the author draws on a wide variety of methods used by different research projects from all over the world. Over the years a great many traps have been developed and endlessly modified to suit particular species, habitats, and research requirements. In virtually every case the design of the trap interacts with the specific behavior of the insects involved to bias trap efficiency. In addition, the limited dialogue between workers in different subject disciplines and habitats has caused a shortage of new information available to field entomologists as a whole. - Describes and evaluates the main methods of trapping flying insects - Brings together results from agricultural/forest/pest studies and those from medical entomology
