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Energy Transfer Properties And Mechanisms Technical Progress Report
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Book Synopsis Energy Transfer Properties and Mechanisms. Technical Progress Report by :
Download or read book Energy Transfer Properties and Mechanisms. Technical Progress Report written by and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the research carried out under this program is to determine the principles of collisional energy transfer and use them in predictive models and theories. In order to accomplish this goal, energy transfer properties must be determined and then analyzed to discern the underlying principles involved. In this laboratory, the experimental determination of energy transfer parameters is based on techniques that use physical properties to monitor the amount of energy in excited molecules. These techniques differ from chemical methods, based on unimolecular reaction studies, which are susceptible to interferences from complex chemical mechanisms and other complications. The physical methods have their own weaknesses and limitations, however, and much of our effort has been directed toward gaining a better understanding of these deficiencies. Two physical techniques have been proved to be particularly useful: time-resolved infrared fluorescence and time-dependent thermal lensing. As described later, we will shortly begin work using resonance enhanced multiphoton ionization techniques to investigate energy transfer in bulbs and ''half collisions'' in free jets. We also have been completing some calculational efforts to model formation of polycyclic aromatic hydrocarbons in stellar atmospheres.
Book Synopsis Energy Transfer Properties and Mechanisms. Technical Progress Report, 1 March 1991--15 August 1993 by :
Download or read book Energy Transfer Properties and Mechanisms. Technical Progress Report, 1 March 1991--15 August 1993 written by and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since no single experimental technique is the best method for energy transfer experiments, we have used both time-dependent infrared fluorescence (IRF) and time-dependent thermal lensing (TDTL) to study energy transfer in various systems. We are investigating pump-probe techniques employing resonance enhanced multiphoton ionization (REMPI). IRF was used to study benzene, azulene, and toluene. TDTL was used to study CS2 and SO2 (data not given for latter). Large molecule energy transfer mechanisms are discussed. 10 figs.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1995 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 1496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fossil Energy Update written by and published by . This book was released on 1981 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976-05 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Energy Research and Development Administration. Technical Information Center Publisher : ISBN 13 : Total Pages :588 pages Book Rating :4.3/5 (129 download)
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration. Technical Information Center
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1975 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis ERDA Energy Research Abstracts by : United States. Energy Research and Development Administration
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 1322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1979 with total page 1072 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy Transfer Mechanisms in Photobiological Reactions. Progress Report, 1 August 1975--30 April 1976 by :
Download or read book Energy Transfer Mechanisms in Photobiological Reactions. Progress Report, 1 August 1975--30 April 1976 written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: As in our earlier work on the sensitized photooxidation of substituted phenylalanines, ring substituents were found to have a marked effect on the photooxidation of uracil. This compound was selected as a typical pyrimidine for detailed studies of the mechanism of photooxidation of molecules of biological importance. The photooxidation of a series of 5-substituted uracils as sensitized by eosin Y, ruthenium bipyridyl, 3-methyl-lumiflavin and methylene blue was studied using oxygen electrode and flash photolysis techniques. Different substituents had very different effects on the rates of photooxidation with a given dye, and some substituents could shift the mechanism from a singlet oxygen pathway to an electron abstraction pathway (or vice versa). A study of the effects of porphyrin structure in relation to photosensitizing characteristics was completed. An examination of the localized selective photooxidation of amino acids in the vicinity of the heme binding site of horseradish peroxidase was made using specifically-bound protoporphyrin IX and other porphyrins as sensitizers. Preliminary studies were carried out on the use of sensitized photooxidation as a tool to study the contribution of histidine-containing crosslinks to the mechanical-thermal properties of mammalian tendon as well as the role of membrane properties in determining the rate and direction of swimming of certain microorganisms.
Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1989 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government-wide Index to Federal Research & Development Reports by :
Download or read book Government-wide Index to Federal Research & Development Reports written by and published by . This book was released on 1967 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Energy Transfer Properties and Mechanisms by :
Download or read book Energy Transfer Properties and Mechanisms written by and published by . This book was released on 1992 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the research carried out under this program is to determine the principles of collisional energy transfer and use them in predictive models and theories. In order to accomplish this goal, energy transfer properties must be determined and then analyzed to discern the underlying principles involved. In this laboratory, the experimental determination of energy transfer parameters is based on techniques that use physical properties to monitor the amount of energy in excited molecules. These techniques differ from chemical methods, based on unimolecular reaction studies, which are susceptible to interferences from complex chemical mechanisms and other complications. The physical methods have their own weaknesses and limitations, however, and much of our effort has been directed toward gaining a better understanding of these deficiencies. Two physical techniques have been proved to be particularly useful: time-resolved infrared fluorescence (IRF) and time-dependent thermal lensing (TDTL). As described later, we will shortly begin work using resonance enhanced multiphoton ionization (REMPI) techniques to investigate energy transfer in bulbs and half collisions'' in free jets. We also have completed some experiments and model calculations which explore the approximations we previously have used in calculating infrared emission from highly excited molecules.
Download or read book Energy written by and published by . This book was released on 1981 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt:
