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Nucleation And Growth Of Crystals Under Cirrus And Polar Stratospheric Cloud Conditions
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Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722671976 Total Pages :58 pages Book Rating :4.6/5 (719 download)
Book Synopsis Nucleation and Growth of Crystals Under Cirrus and Polar Stratospheric Cloud Conditions by : National Aeronautics and Space Administration (NASA)
Download or read book Nucleation and Growth of Crystals Under Cirrus and Polar Stratospheric Cloud Conditions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-10 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Laboratory studies examine phase changes of hygroscopic substances which occur as aerosol in stratosphere and troposphere (sodium chloride, ammonium sulfate, ammonium bisulfate, nitric acid, sulfuric acid), under controlled conditions, in samples volume 1 to 10(exp -4) ml. Crystallization of salts from supersaturated solutions is examined by slowly evaporating a solution drop on a substrate, under controlled relative humidity, until self nucleation occurs; controlled nucleation of ice in a mm capillary U-tube gives a measured ice crystallization velocity at known supercooling. Two states of crystallization occur for regions where hydrates exist. It is inferred that all of the materials readily exist as supersaturated/supercooled solutions; the degree of metastability appears to be slightly enhanced by inclusion of aircraft produced soot. The crystallization velocity is taken as a measure of viscosity. Results suggest an approach to a glass transition at high molality, supersaturation and/or supercooling within the range of atmospheric interest. It is hypothesized that surface reactions occur more readily on solidified particles - either crystalline or glass, whereas volume reactions are more important on droplets with sufficiently low viscosity and volume diffusivity. Implications are examined for optical properties of such particles in the atmosphere. In a separate experiment, crystal growth was examined in a modified thermal vapor diffusion chamber over the range of cirrus temperature (-30 to -70 C) and under controlled supersaturation and air pressure. The crystals grew at a velocity of 1-2 microns/s, thickness 60-70 micron, in the form of thin column crystals. Design criteria are given for a system to investigate particle growth down to -100 C, (PSC temperatures) where nitric acid particles can be grown under similar control and in the form of hydrate crystals. Hallett, John and Queen, Brian and Teets, Edward and Fahey, James Armstrong Flight Research Center...
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 548 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722475284 Total Pages :38 pages Book Rating :4.4/5 (752 download)
Book Synopsis Part a by : National Aeronautics and Space Administration (NASA)
Download or read book Part a written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-09 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specific measurement of cirrus crystals by aircraft and temperature modified CN are used to specify measurements necessary to provide a basis for a conceptual model of cirrus particle formation. Key to this is the ability to measure the complete spectrum of particles at cirrus levels. The most difficult regions for such measurement is from a few to 100 microns, and uses a replicator. The details of the system to automate replicator data analysis are given, together with an example case study of the system provided from a cirrus cloud in FIRE 2, with particles detectable by replicator and FSSP, but not 2DC. Arnott, William P. and Hallett, John and Hudson, James G. Unspecified Center NAG1-1546...
Book Synopsis Light Scattering by Ice Crystals by : Kuo-Nan Liou
Download or read book Light Scattering by Ice Crystals written by Kuo-Nan Liou and published by Cambridge University Press. This book was released on 2016-10-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume outlines the fundamentals and applications of light scattering, absorption and polarization processes involving ice crystals.
Book Synopsis Fifty Years of Flight Research by : David F. Fisher
Download or read book Fifty Years of Flight Research written by David F. Fisher and published by . This book was released on 1999 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: A bibliography of Technical Reports from Dryden Research Center, 1946-1996. Dryden was a National Advisory Committee for Aeronautics (NACA) facility from to 1946-1958, when NACA became NASA (National Aeronautics and Space Administration). This bibliography encompasses both NACA and NASA publications. Illustrated with diagrams and photos. Black and white version.
Book Synopsis Atmospheric Effects of Aviation by : Anne M. Thompson
Download or read book Atmospheric Effects of Aviation written by Anne M. Thompson and published by . This book was released on 1996 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1996 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Light Scattering by Ice Crystals by : Kuo-Nan Liou
Download or read book Light Scattering by Ice Crystals written by Kuo-Nan Liou and published by Cambridge University Press. This book was released on 2016-10-06 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research volume outlines the scientific foundations that are central to our current understanding of light scattering, absorption and polarization processes involving ice crystals. It also demonstrates how data from satellite remote sensing of cirrus clouds can be combined with radiation parameterizations in climate models to estimate the role of these clouds in temperature and precipitation responses to climate change. Providing a balanced treatment of the fundamentals and applications, this book synthesizes the authors' own work, as well as that of other leading researchers in this area. Numerous illustrations are included, including three-dimensional schematics, to provide a concise discussion of the subject and enable easy visualization of the key concepts. This book is intended for active researchers and advanced graduate students in atmospheric science, climatology, and remote sensing, as well as scholars in related fields such as ice microphysics, electromagnetic wave propagation, geometric optics, radiative transfer and cloud-climate interactions.
Book Synopsis Recent Progress in Atmospheric Sciences by : K. N. Liou
Download or read book Recent Progress in Atmospheric Sciences written by K. N. Liou and published by World Scientific. This book was released on 2008 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains 22 peer-reviewed articles that cover a spectrum of contemporary subjects relevant to atmospheric sciences, with specific applications to the Asia-Pacific region. The majority of these papers consist of a review of a scientific sub-field in atmospheric sciences, while some contain original contributions. All of the accepted papers were subject to scientific reviews and revisions.
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 1995 with total page 1342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crystal Growth For Beginners: Fundamentals Of Nucleation, Crystal Growth And Epitaxy (Third Edition) by : Ivan Vesselinov Markov
Download or read book Crystal Growth For Beginners: Fundamentals Of Nucleation, Crystal Growth And Epitaxy (Third Edition) written by Ivan Vesselinov Markov and published by World Scientific. This book was released on 2016-12-29 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'The book is well organized and is pedagogical. By discussing crystallization in pure systems, the author introduces and describes the important concepts, physical parameters and theoretical models pertaining to nucleation and growth of crystals … If you are a young investigator or a graduate student whose research involves understanding the fundamentals of crystallization including nucleation and growth, this book will be a treat for you. Readers who have a strong background in physical chemistry or thermal physics may find the book easy to read. Nevertheless, this book should be a good reference to have on the bookshelf if you are an experienced researcher whose interest crosses the path with the general topics of crystal growth.'Acta Crystallographica Section BThe processes of new phase formation and growth are of fundamental importance in numerous rapidly developing scientific fields such as modern materials science, micro- and optoelectronics, and environmental science. Crystal Growth for Beginners combines the depth of information in monographs, with the thorough analysis of review papers, and presents the resulting content at a level understandable by beginners in science. The book covers, in practice, all fundamental questions and aspects of nucleation, crystal growth, and epitaxy.This book is a non-eclectic presentation of this interdisciplinary topic in materials science. The third edition brings existing chapters up to date, and includes new chapters on the growth of nanowires by the vapor-liquid-solid mechanism, as well as illustrated short biographical texts about the scientists who introduced the basic ideas and concepts into the fields of nucleation, crystal growth and epitaxy. All formulae and equations are illustrated by examples that are of technological importance. The book presents not only the fundamentals but also the state of the art in the subject.Crystal Growth for Beginners is a valuable reference for both graduate students and researchers in materials science. The reader is required to possess some basic knowledge of mathematics, physics and thermodynamics.
Book Synopsis New Topics in Crystal Growth Research by : George V. Karas
Download or read book New Topics in Crystal Growth Research written by George V. Karas and published by Nova Publishers. This book was released on 2006 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experimental and theoretical aspects of crystal growth and its applications, e.g. in devices, are within the scope of these new books . Experimental and theoretical contributions are included in the following fields: theory of nucleation and growth, molecular kinetics and transport phenomena, crystallisation in viscous media such as polymers and glasses; crystal growth of metals, minerals, semiconductors, superconductors, magnetics, inorganic, organic and biological substances in bulk or as thin films; molecular beam epitaxy, chemical vapour deposition, growth of III-V and II-VI and other semiconductors; characterisation of single crystals by physical and chemical methods; apparatus, instrumentation and techniques for crystal growth, and purification methods; multi-layer heterostructures and their characterisation with an emphasis on crystal growth and epitaxial aspects of electronic materials.
Book Synopsis Crystal Growth for Beginners by : Ivan V. Markov
Download or read book Crystal Growth for Beginners written by Ivan V. Markov and published by World Scientific. This book was released on 2003 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first-ever textbook on the fundamentals of nucleation, crystal growth and epitaxy. It has been written from a unified point of view and is thus a non-eclectic presentation of this interdisciplinary topic in materials science. The reader is required to possess some basic knowledge of mathematics and physics. All formulae and equations are accompanied by examples that are of technological importance. The book presents not only the fundamentals but also the state of the art in the subject. The second revised edition includes two separate chapters dealing with the effect of the Ehrlich-Schwoebel barrier for down-step diffusion, as well as the effect of surface active species, on the morphology of the growing surfaces. In addition, many other chapters are updated accordingly. Thus, it serves as a valuable reference book for both graduate students and researchers in materials science. Sample Chapter(s). Crystal-Ambient Phase Equilibrium (396 KB). Contents: Crystal OCo Ambient Phase Equilibrium; Nucleation; Crystal Growth; Epitaxial Growth. Readership: Graduate students, academics and researchers in materials engineering, microelectronics, new materials, semiconductors and related areas."
Download or read book Cirrus written by David K. Lynch and published by Oxford University Press, USA. This book was released on 2002 with total page 499 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text, devoted entirely to cirrus clouds, captures the state of knowledge of cirrus clouds and serves as a practical handbook as well.
Book Synopsis Nucleation and Atmospheric Aerosols by : Norihiko Fukuta
Download or read book Nucleation and Atmospheric Aerosols written by Norihiko Fukuta and published by A. Deepak Publishing. This book was released on 1992 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nucleation and Atmospheric Aerosols by :
Download or read book Nucleation and Atmospheric Aerosols written by and published by . This book was released on 1992 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Antarctic Bibliography written by and published by . This book was released on 1998 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
