AFOSR Chemical & Atmospheric Sciences Program Review PDF Download

Author: United States. Air Force. Directorate of Chemical and Atmospheric Sciences
Publisher:
ISBN:
Category : Atmospheric chemistry
Languages : en
Pages : 594

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Author: Antonio Laganà
Publisher: Springer Science & Business Media
ISBN: 9400909454
Category : Science
Languages : en
Pages : 436

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Book Description
The need for accurate computational procedures to evaluate detailed properties of gas phase chemical reactions is evident when one considers the wealth of information provided by laser, molecular beam and fast How experiments. By stressing ordinary scalar computers to their limiting performance quantum chemistry codes can already provide sufficiently accurate estimates of the stability of several small molecules and of the reactivity of a few elementary processes. However, the accurate characterization of a reactive process, even for small systems, is so demanding in terms of computer resources to make the use of supercomputers having vector and parallel features unavoidable. Sometimes to take full advantage from these features all is needed is a restructure of those parts of the computer code which perform vector and matrix manipulations and a parallel execution of its independent tasks. More often, a deeper restructure has to be carried out. This may involve the problem of choosing a suitable computational strategy or the more radical alternative of changing the theoretical treatment. There are cases, in fact, where theoretical approaches found to be inefficient on a scalar computer exhibit their full computational strength on a supercomputer.

Author: I. Smith
Publisher: Springer Science & Business Media
ISBN: 1468435574
Category : Science
Languages : en
Pages : 290

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Book Description
During the last 30 years our knowledge and understanding of molecular processes has followed the development of increasingly sophisticated tech niques for studying fast reactions. Although the results are reported in papers and reviews, it is sometimes difficult for those not themselves active in these fields to find their way through the mass of published material. We hope that each book in this series will present a clear account of the present state of knowledge in a particular field of physical chemistry to research workers in related fields, to research students, and for the preparation of undergraduate and post-graduate lectures. Each chapter describes the theoretical develop ment of one area of study and the appropriate experimental techniques; the results presented are chosen to illustrate the theory rather than to attempt a comprehensive review. The first volume published in 1972 was concerned with the reactions of small molecules and free radicals in the gas phase. The development of flash photolysis in the 1950s paved the way by making it possible to generate free radicals in sufficient concentration for a spectroscopic" snapshot" to reveal their molecular structure. Their role in kinetic systems could then be followed directly, rather than be inferred from mechanism. The shock tube enabled gas mixtures to be heated to any desired temperature in a time which was shorter than subsequent chemical reactions. Discharge-flow methods enabled the reactions of atoms and free radicals to be studied directly.

Author: Richard Barry Bernstein
Publisher: Oxford University Press, USA
ISBN:
Category : Science
Languages : en
Pages : 284

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Author: National Science Foundation (U.S.)
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 728

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Author: Stefano Falcinelli
Publisher: Frontiers Media SA
ISBN: 2889634302
Category :
Languages : en
Pages : 345

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Author: P G Ashmore
Publisher: Royal Society of Chemistry
ISBN: 1847556124
Category : Science
Languages : en
Pages : 254

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Book Description
Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued. The current list of Specialist Periodical Reports can be seen on the inside flap of this volume.

Author: Hans Pauly
Publisher: Springer Science & Business Media
ISBN: 9783540676737
Category : Medical
Languages : en
Pages : 414

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Book Description
This book completes the physical foundations and experimental techniques described in volume 1 with an updated review of the accessory equipment indispensable in molecular beam experiments. It extends the subject to cluster beams and beams of hyperthermal and subthermal energies. As in volume 1, a special effort is made to outline the physical foundations of the various experimental techniques. Hence this book is intended not only as a reference standard for researchers in the field, but also to bring the flavor of current molecular beam research to advanced undergraduates and graduate students and to enable them to gain a solid background in the field and its technique.

Author:
Publisher:
ISBN:
Category : Engineering
Languages : en
Pages : 718

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Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 660

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