Collisional Line Broadening And Shifting Of Atmospheric Gases
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Collisional Line Broadening And Shifting Of Atmospheric Gases
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Author : Jeanna Buldyreva
language : en
Publisher: World Scientific
Release Date : 2011
Collisional Line Broadening And Shifting Of Atmospheric Gases written by Jeanna Buldyreva and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Science categories.
This book presents a comprehensive overview of the modern theory of spectral line broadening and shifting by pressure of atmospheric gases. It describes current semi-classical methods for calculating vibrotational line widths and shifts, including very recent modifications and new developments realised by the authors themselves. For most of the considered molecular systems, analytical formulae are also given, which enable the calculation of line broadening coefficients without the use of semi-classical methods. The results of calculations by various approaches are compared with experimental data available in the literature. Numerous appendices list theoretical expressions and parameters' values required for the writing of computer programs for calculation of line broadening and line shifting coefficients.The book is addressed to undergraduate and postgraduate students as well as to professional scientists and researchers working in the field of molecular physics, molecular spectroscopy, quantum chemistry and mathematical physics.
High Accuracy Resonator Spectroscopy Of Atmospheric Gases At Millimetre And Submillimetre Waves
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Author : M. Yu. Tretyakov
language : en
Publisher: Cambridge Scholars Publishing
Release Date : 2021-11-12
High Accuracy Resonator Spectroscopy Of Atmospheric Gases At Millimetre And Submillimetre Waves written by M. Yu. Tretyakov and has been published by Cambridge Scholars Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-12 with Science categories.
This book is devoted to the most efficient method of obtaining spectroscopic parameters characterising the absorption of microwave radiation by the Earth’s atmosphere. It explores why this field of science is interesting and important for humanity, and details the basics of gas phase molecular spectroscopy. The book also shows the advantages of the resonator spectroscopy technique for quantitative molecular analysis, and reviews the best-known investigations of diagnostic atmospheric lines and the continuum in the millimetre and submillimetre-wave range. It will appeal to a wide range of specialists in the fields of spectroscopy, atmospheric physics, and millimetre and submillimetre-wave techniques, and will be helpful for lecturers and students concerned with these specialised courses.
Collisional Effects On Molecular Spectra
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Author : Jean-Michel Hartmann
language : en
Publisher: Elsevier
Release Date : 2021-01-12
Collisional Effects On Molecular Spectra written by Jean-Michel Hartmann and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-01-12 with Science categories.
Gas phase molecular spectroscopy is a powerful tool for obtaining information on the geometry and internal structure of isolated molecules and their interactions with others. It enables the understanding and description, through measurements and modeling, of the influence of pressure on light absorption, emission, and scattering by gas molecules, which must be taken into account for the correct analysis and prediction of the resulting spectra. Collisional Effects on Molecular Spectra: Laboratory Experiments and Models, Consequences for Applications, Second Edition provides an updated review of current experimental techniques, theoretical knowledge, and practical applications. After an introduction to collisional effects on molecular spectra, the book moves on by taking a threefold approach: it highlights key models, reviews available data, and discusses the consequences for applications. These include areas such as heat transfer, remote sensing, optical sounding, metrology, probing of gas media, and climate predictions. This second edition also contains, with respect to the first one, significant amounts of new information, including 23 figures, 8 tables, and around 700 references.Drawing on the extensive experience of its expert authors, Collisional Effects on Molecular Spectra: Laboratory Experiments and Models, Consequences for Applications, Second Edition, is a valuable guide for all those involved with sourcing, researching, interpreting, or applying gas phase molecular spectroscopy techniques across a range of fields. - Provides updated information on the latest advances in the field, including isolated line shapes, line-broadening and -shifting, line-mixing, the far wings and associated continua, and collision-induced absorption - Reviews recently developed experimental techniques of high accuracy and sensitivity - Highlights the latest practical applications in areas such as metrology, probing of gas media, and climate prediction
Collisional Line Broadening And Shifting Of Atmospheric Gases A Practical Guide For Line Shape Modelling By Current Semi Classical Approaches
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Author : Jeanna Buldyreva
language : en
Publisher: World Scientific
Release Date : 2010-11-11
Collisional Line Broadening And Shifting Of Atmospheric Gases A Practical Guide For Line Shape Modelling By Current Semi Classical Approaches written by Jeanna Buldyreva and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-11 with Science categories.
This book presents a comprehensive overview of the modern theory of spectral line broadening and shifting by pressure of atmospheric gases. It describes current semi-classical methods for calculating vibrotational line widths and shifts, including very recent modifications and new developments realised by the authors themselves. For most of the considered molecular systems, analytical formulae are also given, which enable the calculation of line broadening coefficients without the use of semi-classical methods. The results of calculations by various approaches are compared with experimental data available in the literature. Numerous appendices list theoretical expressions and parameters' values required for the writing of computer programs for calculation of line broadening and line shifting coefficients.The book is addressed to undergraduate and postgraduate students as well as to professional scientists and researchers working in the field of molecular physics, molecular spectroscopy, quantum chemistry and mathematical physics.
Trace Analysis Of Specialty And Electronic Gases
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Author : William M. Geiger
language : en
Publisher: John Wiley & Sons
Release Date : 2013-07-15
Trace Analysis Of Specialty And Electronic Gases written by William M. Geiger and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-07-15 with Science categories.
Explores the latest advances and applications of specialty and electronic gas analysis The semiconductor industry depends upon a broad range of instrumental techniques in order to detect and analyze impurities that may be present in specialty and electronic gases, including permanent gases, water vapor, reaction by-products, and metal species. Trace Analysis of Specialty and Electronic Gases draws together all the latest advances in analytical chemistry, providing researchers with both the theory and the operating principles of the full spectrum of instrumental techniques available for specialty and electronic gas analysis. Moreover, the book details the advantages and disadvantages of each technique, steering readers away from common pitfalls. Featuring contributions from leading analytical and industrial chemists, Trace Analysis of Specialty and Electronic Gases covers a wide range of practical industrial applications. The book begins with the historical development of gas analysis and then focuses on particular subjects or techniques such as: Metals sampling and ICP-MS analysis Improvements in FTIR spectroscopy Water vapor analysis techniques New infrared laser absorption spectroscopy approaches GC/MS, GC/AED, and GC-ICP-MS techniques Gas chromatography columns Atmospheric pressure ionization mass spectrometry Lastly, the book examines gas mixtures and standards that are critical for instrument calibration. There are also two appendices offering information on fittings and material compatibility. With its thorough review of the literature and step-by-step guidance, Trace Analysis of Specialty and Electronic Gases enables researchers to take full advantage of the latest advances in gas analysis. Although the book's focus is the semiconductor and electronics industry, analytical chemists in other industries facing challenges with such issues as detection selectivity and sensitivity, matrix gas interference, and materials compatibility will also discover plenty of useful analytical approaches and techniques.
Radiative Transfer In The Atmosphere And Ocean
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Author : Knut Stamnes
language : en
Publisher: Cambridge University Press
Release Date : 2017-07-13
Radiative Transfer In The Atmosphere And Ocean written by Knut Stamnes and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-07-13 with Science categories.
This updated edition provides a foundation of theoretical and practical aspects of radiative transfer for students and researchers in atmospheric, oceanic and environmental sciences.
Remote Sensing Of The Atmosphere For Environmental Security
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Author : Agnès Perrin
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-01-21
Remote Sensing Of The Atmosphere For Environmental Security written by Agnès Perrin and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-01-21 with Nature categories.
Recent ecological disasters make human beings aware of changes in the Earth’s climate. At the present time anthropogenic activities lead to the emission of greenhouse gases, pollutants, aerosols and ozone depleting substances and the scientific community in general feels responsible for understanding how changes in atmospheric chemistry can affect the Earth’s climate. The first part of these proceedings describes the current capabilities of various satellite experiments which are performing measurements of the Earth’s atmosphere, as for example some of the results obtained recently by three experiments onboard the Environment Satellite (ENVISAT), namely, the Global Ozone Monitoring Experiment (GOME), the SCanning Imaging Absorption for Atmospheric CHartographY (SCIAMACHY) and the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS). For the analysis of spectra recorded by these instruments it is necessary to make good use of efficient radiative transfer codes. These computer codes need as input, a dataset of high quality spectroscopic parameters which can be generated only through a careful analysis of high quality laboratory measurements. In addition some of the future satellite missions which are under preparation at the European Space Agency (ESA) are briefly described.
Proceedings Fifth International Conference Berlin West July 7 11 1980
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Author : Burkhard Wende
language : en
Publisher: Walter de Gruyter GmbH & Co KG
Release Date : 2019-10-08
Proceedings Fifth International Conference Berlin West July 7 11 1980 written by Burkhard Wende and has been published by Walter de Gruyter GmbH & Co KG this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-10-08 with Science categories.
No detailed description available for "Proceedings. Fifth International Conference Berlin (West), July 7–11, 1980".
Astrophysics
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Author :
language : en
Publisher: Academic Press
Release Date : 1976-05-18
Astrophysics written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976-05-18 with Science categories.
Astrophysics
Laser Based Investigation Of Gas And Solid Fuel Combustion Under Oxy Fuel Atmosphere
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Author : Sebastian Bürkle
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-03-04
Laser Based Investigation Of Gas And Solid Fuel Combustion Under Oxy Fuel Atmosphere written by Sebastian Bürkle and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-03-04 with Science categories.
Oxy-fuel combustion has the potential to reduce the atmospheric CO2-emissions of fossil fuel power plants by burning gaseous or solid fuels under an atmosphere of carbon dioxide and oxygen. The combustion under oxy-fuel operating conditions, however, is accompanied by major changes in the combustion behavior. The underlying chemical and physical processes are complex and highly coupled, which impedes investigations and modeling. Since tactile and most of the optical measurement techniques fail under the sensitive and simultaneously harsh environments of oxy-fuel combustion, an optical in-situ measurement system based on tunable diode laser absorption spectroscopy is developed in this work. This system allows to investigate the thermochemical state of combustion gases with respect to the quantitative concentrations of multiple combustion-relevant gases and the gas temperature. In combination with a newly developed and applied measurement strategy, the system even allows for a measurement of the gas residence time distribution. To improve the measurement accuracy, multiple absorption line parameters are experimentally determined. The measurement system is applied to three oxy-fuel combustion systems. First, the thermochemical state of the laminar, non-premixed methane combustion under oxy-fuel atmosphere is studied. The turbulent, premixed combustion of the same fuel under air and two oxy-fuel atmospheres is studied in a 20 kWth swirled combustor. Measurements of the residence time distribution of fluids in the combustion chamber provide insights into mixing and transport properties of the flow. The thermochemical state reveals insights into the reaction progess and flow mixing. Co-firing of three different solid fuels in an assisting gas flame is investigated for a combined thermal power up to 40 kWth. Here, the char burnout of the particles is investigated. The thermochemical state of the combustion of pure torrefied biomass under air and oxy-fuel combustion atmosphere is investigated in a 60 kWth close-to-application facility and compared to equillibrium calculations.