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2008 (3)

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Book
Cryogenic Mixed Refrigerant Processes
Authors: ---
ISBN: 9780387785141 0387785132 9780387785134 1441926909 9786611927127 1281927120 0387785140 Year: 2008 Publisher: New York, NY : Springer New York : Imprint: Springer,

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Abstract

Cryogenic refrigerators operating with refrigerant mixtures were developed under classified and proprietary programs for many years, and it was only after 1991 that the world realized the importance of the mixed refrigerant systems for cryogenic refrigeration. Mixed refrigerant cryogenic processes are also used in most large base load natural gas liquefaction plants. Hundreds of patents exist on different aspects of mixed refrigerant processes for liquefaction of natural gas, as well as the composition of mixtures for Joule-Thomson and other refrigerators. Still, the fundamental aspects of these processes continued to not receive the attention they deserve in open literature in the view of these commercial interests. Cryogenic Mixed Refrigerant Processes, by Dr. G. Venkatarathnam, explains all the aspects of mixed refrigerant processes using robust analytical methods based on sound thermodynamic principles, drawing upon many case studies and examples, largely unpublished, to teach: - the need for refrigerant mixtures - the different processes than can be used in refrigeration and liquefaction systems - the methods to be adopted for choosing the components of a mixture and their concentrations used for various cryogenic applications - the methods for simulating and optimizing cryogenic processes Cryogenic Mixed Refrigerant Processes will be a valuable and much needed reference for researchers and scientists whose focus includes cryogenic engineering, natural gas liquefaction, refrigeration systems, and process simulation and optimization. Dr. G. Venkatarathnam is Professor of Mechanical Engineering at the Indian Institute of Technology Madras, India. “…this is a good reference both for entering the domain of mixed refrigerant processes, and to expand the knowledge of optimal applications for this technique. It is a compact book that gives practical answers on the why and how to use mixtures in cryogenics.” -Luca Bottura, CERN, Switzerland “This book is an important source of knowledge for post-graduate students, process engineers working on equipment projects for gas liquefaction industry as well as those, operating liquefaction plants, or for feasibility studies analysts, as well as for newcomers in this branch of technology. Reading of the book doesn’t require any previous specific knowledge except of basic course of thermodynamics on university level. All readers will certainly appreciate the work done by the author on optimization of all the cycles. It may save a lot of research and engineering work of those working on projects. Possibly, it can also help to achieve more optimized solutions.” -Vaclav Chrz, Chart Ferox, Czech Republic.

Keywords

Chemistry. --- Industrial Chemistry/Chemical Engineering. --- Superconductivity, Superfluidity, Quantum Fluids. --- Solid State Physics and Spectroscopy. --- Materials Science, general. --- Chemical engineering. --- Particles (Nuclear physics). --- Superconductivity. --- Materials. --- Chimie --- Génie chimique --- Particules (Physique nucléaire) --- Supraconductivité --- Matériaux --- Refrigerants. --- Refrigerants --- Chemical & Materials Engineering --- Engineering & Applied Sciences --- Chemical Engineering --- Low temperature research. --- Cryogenics --- Low temperatures --- Research --- Solid state physics. --- Superconductors. --- Spectroscopy. --- Microscopy. --- Materials science. --- Strongly Correlated Systems, Superconductivity. --- Solid State Physics. --- Spectroscopy and Microscopy. --- Thermochemistry --- Chemistry, Technical --- Heat-transfer media --- Refrigeration and refrigerating machinery --- Engineering --- Engineering materials --- Industrial materials --- Engineering design --- Manufacturing processes --- Chemistry, Industrial --- Engineering, Chemical --- Industrial chemistry --- Metallurgy --- Materials --- Material science --- Physical sciences --- Analysis, Microscopic --- Light microscopy --- Micrographic analysis --- Microscope and microscopy --- Microscopic analysis --- Optical microscopy --- Optics --- Analysis, Spectrum --- Spectra --- Spectrochemical analysis --- Spectrochemistry --- Spectrometry --- Spectroscopy --- Chemistry, Analytic --- Interferometry --- Radiation --- Wave-motion, Theory of --- Absorption spectra --- Light --- Spectroscope --- Physics --- Solids --- Superconducting materials --- Superconductive devices --- Cryoelectronics --- Electronics --- Solid state electronics --- Electric conductivity --- Critical currents --- Superfluidity --- Qualitative --- Analytical chemistry

The NMR probe of high-Tc materials
Author:
ISBN: 9783540755647 3540755640 3540755659 Year: 2008 Publisher: Berlin, Heidelberg : Springer,

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Abstract

The NMR probe has yielded a vast array of data for the high-Tc materials, corresponding to different compounds, ionic sites, and nuclear species, as well as to a wide variety of experimental conditions. Over the twenty years, since the discovery of superconducting cuprates, ongoing analysis and discussion of cuprate NMR data have resulted in a wealth of important insights into the physics of these exotic systems. The aims of this monograph are threefold. First, it reviews NMR methodology as it has been applied to the cuprate studies. This is addressed to NMR practitioners and to physics laypersons alike. Next, it presents a review of cuprate NMR measurements and the wide variety of phenomena which they represent. The third phase is to recount the theoretical model calculations and other proposals which have been put forward to account for these data. Parts two and three are presented in parallel, as there are many aspects to both topics, each with its own interesting history. There is, even twenty years on, a substantial level of current theoretical development underway on the topic of high-Tc. Thus, there are theoretical controversies to be addressed, notably that between the one and two-component pictures of NMR dynamics, which may not be resolved for some time to come. Further, even though one would have to say that the experimental picture is largely settled for high-Tc NMR studies, theoretical controversies may legitimately call for new, improved or more extensive data. There are also apparent conflicts between NMR and neutron scattering results. These must be addressed and rationalized very carefully. What remains in the end, then, is a snapshot of an ongoing enterprise, which is undoubtedly the grandest program ever undertaken under the rubric of condensed matter NMR studies.


Book
Electron transport in nanosystems
Authors: --- --- ---
ISBN: 9781402091469 1402091451 9781402091452 9786611853471 128185347X 140209146X 1402091443 Year: 2008 Publisher: Dordrecht, Netherlands : Springer,

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Abstract

Developments in nanotechnology and measurement techniques now allow experimental investigation of transport properties of nanodevices. There is great interest in this research connected with development of spintronics, molecular electronics and quantum information processing.

Keywords

Physics. --- Superconductivity, Superfluidity, Quantum Fluids. --- Nanotechnology. --- Computation by Abstract Devices. --- Solid State Physics and Spectroscopy. --- Magnetism, Magnetic Materials. --- Computer science. --- Particles (Nuclear physics). --- Superconductivity. --- Magnetism. --- Physique --- Informatique --- Particules (Physique nucléaire) --- Supraconductivité --- Magnétisme --- Nanotechnologie --- Electron transport -- Congresses. --- Nanostructured materials -- Electric properties -- Congresses. --- Nanostructures -- Electric properties -- Congresses. --- Electron transport --- Nanostructured materials --- Nanostructures --- Atomic Physics --- Physics --- Physical Sciences & Mathematics --- Electric properties --- Nanomaterials --- Nanometer materials --- Nanophase materials --- Nanostructure controlled materials --- Nanostructure materials --- Ultra-fine microstructure materials --- Engineering. --- Computers. --- Condensed matter. --- Superconductors. --- Electronics. --- Microelectronics. --- Nanotechnology and Microengineering. --- Electronics and Microelectronics, Instrumentation. --- Condensed Matter Physics. --- Strongly Correlated Systems, Superconductivity. --- Nanoscience --- Microstructure --- Nanotechnology --- Informatics --- Science --- Molecular technology --- Nanoscale technology --- High technology --- Electrical engineering --- Physical sciences --- Construction --- Industrial arts --- Technology --- Automatic computers --- Automatic data processors --- Computer hardware --- Computing machines (Computers) --- Electronic brains --- Electronic calculating-machines --- Electronic computers --- Hardware, Computer --- Computer systems --- Cybernetics --- Machine theory --- Calculators --- Cyberspace --- Superconducting materials --- Superconductive devices --- Cryoelectronics --- Electronics --- Solid state electronics --- Electric conductivity --- Critical currents --- Superfluidity --- Condensed materials --- Condensed media --- Condensed phase --- Materials, Condensed --- Media, Condensed --- Phase, Condensed --- Liquids --- Matter --- Solids --- Microminiature electronic equipment --- Microminiaturization (Electronics) --- Microtechnology --- Semiconductors --- Miniature electronic equipment --- Materials

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