Download or read book Research on Ion Molecule Reactions Involving Species Important in the Atmosphere written by Clayton F. Giese and published by . This book was released on 1965 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report covers studies of ion molecule reactions done with mass selection of the primary ion beam. There are five separate sections: (1) The cross section for the important reaction O(+)+N2 yields NO(+)+N has been measured from about 0.5 e.v. to 35 e.v. It has a broad maximum of 4 x 10 to the 16th power sq cm at 13 e.v. and, very surprisingly, drops off rapidly above this energy and, more slowly below this energy. (2) Isotope effects in reactions of HD(+) ions with HD molecules and rare gas atoms have been studied. (3) Some theoretical speculations on the importance of quantum-mechanical resonance forces in ion-molecule reactions are given. (4) Cross sections for dissociative ionization of N2 and N2O by rare gas ion impact have been measured. (5) Reactions, including dissociative ionization, of rare gas ions with N2O, C2H4, and D2 have been studied. (Author).
Download or read book Ion Molecule Attachment Reactions Mass Spectrometry written by Toshihiro Fujii and published by Springer. This book was released on 2015-08-03 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the mechanism of alkali-metal ion/molecule association reaction, surveys the instrumental basis to study its kinetic, and describes the instrumentation to the measurement of alkali-metal ion affinities. The applications of the ion complexation mechanism in the condensed phase in reaction to direct analysis MS are also covered. Other topics include mechanism and reaction rate, experimental and theoretical ion affinities, applications of ion attachment reactions (IAR) to mass spectrometry such as alkali ion CIMS, ion attachment MS and cationization mass spectrometry of ESI, FAB, FD, LD, MALDI and SIMS and topics of IAR-based direct analysis mass spectrometry.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1126 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.
Download or read book A Technique for Solving the General Reaction rate Equations in the Atmosphere written by T. J. Keneshea and published by . This book was released on 1967 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: With the availability of numerical techniques for solving an extensive set of nonlinear differential equations and high-speed computers for performing the calculations, interest in solving the unrestricted reaction-rate equations is growing among ionospheric researchers. In view of this a refinement is given of the techniques previously developed in PB-163 071 and AD-424 173. The computer code is written to solve the photochemical behavior of 15 atmospheric species; these species are electrons, O( - ), O2( - ), O3( - ), NO2( - ), O(+), O2(+), N2(+), NO(+), NO, N, NO2, O3, N2O, and O. Built into the code are 168 reactions that can conceivably take place among these constituents. Several examples of the results obtained using the code are presented, including the buildup of ionization from zero concentrations at altitudes in the D and E regions and the deionization of an atmosphere with high initial electron densities. The diurnal variation of the atmospheric constituents is also presented along with profiles for the above-mentioned species from 60 km to 120 km. The computer codes are included in their entirety with complete explanations on their usage. (Author).
Download or read book Techniques for the Study of Ion Molecule Reactions written by James M. Farrar and published by Wiley-Interscience. This book was released on 1988-08-12 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive collection of all the major techniques used to study gas phase interactions is presented in this volume. With complete coverage of what a given technique can accomplish, its advantages and disadvantages, the book is designed to teach advanced students and researchers entering the field how to investigate a broad range of topics. Included is coverage of traditional topics such as ion cyclotron resonance, as well as more recent innovations, including Fourier transform mass spectrometry and ionic cluster studies. Several diagrams of instrumentation and examples of experimental data are also provided.
Download or read book Reactions of Ions in the Upper Atmosphere written by W. W. Hunt and published by . This book was released on 1962 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ion Molecule Reactions of Atmospheric Importance written by Peter E. Coffey and published by . This book was released on 1972 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Progress written by and published by . This book was released on 1984 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ionospheric Techniques and Phenomena written by A. Giraud and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 281 pages. Available in PDF, EPUB and Kindle. Book excerpt: If our eyes were radio rather than optical wide-band detectors it is well known that for us the brightest object in the sky would still be the Sun; that planets, stars and the Milky Way would still shine feebly (and that we would still occasionally be blinded by man-made sources). What is less well known is that quite a different earthbound overcast would hover about us, with its climatic zones, its seasonal changes, its unpredictable storms and scintillating transparence. To be sure, we can get a sort of glimpse of this peculiar type of weather when we tune our receiver to radio broad casting from some remote spot, or photograph the Earth from space at certain specific wavelengths. Nevertheless no one has ever looked at the ionized shroud of the Earth without the help of sophisticated apparatus, and this is one of the reasons why in this domain the phenomena are not easily abstracted from the use of specific techniques. For generations, the study of the ionosphere has been deeply interwoven with the practice of radio communication and detection. Today however, ionospheric physics is best thought of as a branch of space physics; that part of physics which deals with processes at work in the solar system and methods developed for its exploration.
Download or read book Prebiotic Photochemistry written by Franz Saija and published by Royal Society of Chemistry. This book was released on 2021-06-09 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photochemistry is an important facet in the study of the origin of life and prebiotic chemistry. Solar photons are the unique source of the large amounts of energy likely required to initiate the organisation of matter to produce biological life. The Miller–Urey experiment simulated the conditions thought to be present on the early earth and supported the hypothesis that under such conditions complex organic compounds could be synthesised from simpler inorganic precursors. The experiment inspired many others, including the production of various alcohols, aldehydes and organic acids through UV-photolysis of water vapour with carbon monoxide. This book covers the photochemical aspects of the study of prebiotic and origin of life chemistry an ideal companion for postgraduates and researchers in prebiotic chemistry, photochemistry, photobiology, chemical biology and astrochemistry.
Download or read book Air Force Research Resum s written by and published by . This book was released on with total page 854 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Atmospheric Electrodynamics written by Hans Volland and published by CRC Press. This book was released on 1995-04-27 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The participation of such diverse scientific and technical disciplines as meteorology, astronomy, atmospheric electricity, ionospheric and magnetospheric physics, electromagnetic wave propagation, and radio techniques in the research of atmospherics means that results are published in scientific papers widely spread throughout the literature. This Handbook collects the latest knowledge on atmospherics and presents it in two volumes. Each chapter is written by an expert in his or her field. Topics include the physics of thunderclouds, thunder, global atmospheric electric currents, biological aspects of sferics, and various space techniques for detecting lightning within our own atmosphere as well as in the atmospheres of other planets. Up-to-date applications and methodology are detailed. Volumes I and II offer a comprehensive discussion that together will serve as an important resource for practitioners, professionals, and students alike.
Download or read book Air Force Research Objectives written by United States. Air Force. Office of Aerospace Research and published by . This book was released on with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Atmospheric Electrodynamics Volume I written by Hans Volland and published by CRC Press. This book was released on 2017-11-22 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The participation of such diverse scientific and technical disciplines as meteorology, astronomy, atmospheric electricity, ionospheric and magnetospheric physics, electromagnetic wave propagation, and radio techniques in the research of atmospherics means that results are published in scientific papers widely spread throughout the literature. This Handbook collects the latest knowledge on atmospherics and presents it in two volumes. Each chapter is written by an expert in his or her field. Topics include the physics of thunderclouds, thunder, global atmospheric electric currents, biological aspects of sferics, and various space techniques for detecting lightning within our own atmosphere as well as in the atmospheres of other planets. Up-to-date applications and methodology are detailed. Volumes I and II offer a comprehensive discussion that together will serve as an important resource for practitioners, professionals, and students alike.
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 964 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ionic Reactions of Atmospheric Importance written by D. Smith and published by . This book was released on 1983 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: A variable-temperature flowing afterglow/Langmuir probe (VT-FALP) apparatus has been used to study several electron-ion dissociative recombination reactions and several electron attachment reactions. Thus the variation with temperature of the respective dissociative recombination coefficients, alpha and electron attachment coefficients, beta have been determined. The recombination studies have included the species 02+, NO+, NH4+, H3, HC0+, N2H+ and CH5+, and the attachment studies have included the species CC14, CC13F, CC12F2, CHC13, C12, SF6, C-C7F14, CH3Br, CF3Br, CH2Br2 and CH3I. Some ion molecule reactions have also been studied as a function of temperature and of ion-molecule centre-of mass energy usign a variable-temperature selective ion flow drift tube (VT-SIFDT).
Download or read book The Prediction of Ionospheric Conditions written by G.S. Ivanov-Kholodny and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ionosphere of the Earth has been actively studied since the 1920's, following the discovery of ground radio-sounding. By means of this method results were ohtained by an international network of ionospheric stations, in particular, by the successful implementation of a number of rigorously planned international scientific research programs,'" enabling the collection of extensive experimental material on some of the most important parameters of the ionosphere - the critical freLjuencies of E-, Fl and F2-layers. Comprehensive analyses of these observation data give a fairly complete picture of the various changes taking place in the principal ionospheric layers at different points on our globe. Another important aspect of the study of the ionosphere, which has been in progress for the past three decades, is an extensive program of in situ determinations of the various physical parameters - first using rockets, and subsequently artificial satellites. The data thus obtained on the principal ionizing agent - short-wave solar radiation - and on the physical conditions prevailing in the upper atmosphere and in the ionosphere at different altitudes, allow the proposal of a self-consistent mechanism of ionosphere formation. A general outline of the theory of ionosphere formation at different altitudes is now complete. Its application to specific cases, dependent on a more accurate determination of input parameters to give solutions valid for a definite set of conditions etc., is yet to be accomplished. The use of artificial satellites in cosmic research yielded abundant scientific data.
