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Author : Damon Raphael Seok
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (85 download)
Download or read book Measurement of the Diffusion Coefficient of Water Vapor Through Solid Polymer written by Damon Raphael Seok and published by . This book was released on 1980 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. H. Shafer
Publisher : Springer Science & Business Media
ISBN 13 : 1468442295
Total Pages : 311 pages
Book Rating : 4.4/5 (684 download)
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and dis seminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the ac tivity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volume were handled by an international publishing. house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 25 (thesis year 1980) a total of 10,308 theses titles from 27 Canadian and 214 United States universities. We are sure that this broader base for theses titles reported will greatly enhance the value of this important annual reference work. While Volume 25 reports theses submitted in 1980, on occasion, certain universities do report theses submitted in previous years but not reported at the time.
Author : Roberto Cunningham
Publisher : Springer Science & Business Media
ISBN 13 : 147574983X
Total Pages : 293 pages
Book Rating : 4.4/5 (757 download)
Download or read book Diffusion in Gases and Porous Media written by Roberto Cunningham and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world we live in exhibits, on different scales, many phenomena related to the diffusion of gases. Among them are the movement of gases in earth strata, the aeration of soils, the drying of certain materials, some catalytic reactions, purification by adsorption, isotope separation, column chro matography, cooling of nuclear reactors, and the permeability of various packing materials. The evolution of the understanding of this subject has not always been straightforward and progressive-there has been much confusion and many doubts and misunderstandings, some of which remain to this day. The main reason for the difficulties in the development of this subject is, we now know, the lack of an understanding of the effects of walls on diffusing systems. Textbooks usually treat diffusion on two levels: at the physicochemi cal or molecular level, making use of the kinetic theory of gases (which while a very rigorous and well-founded theory nevertheless is valid only for systems without walls), or at the level of a transport phenomenon, a level geared toward applications. The influence of walls is usually disregarded or is treated very briefly (for example, by taking account of the Knudsen regime or by introducing a transition regime of limited validity) in a way unconnected with previous studies. As a consequence, the extensive, gener alized, and well-founded knowledge of systems without walls has often been applied without sound basis to real situations, i.e., to systems with walls.
Author :
Publisher :
ISBN 13 :
Total Pages : 652 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John Crank
Publisher : Oxford University Press
ISBN 13 : 9780198534112
Total Pages : 428 pages
Book Rating : 4.5/5 (341 download)
Download or read book The Mathematics of Diffusion written by John Crank and published by Oxford University Press. This book was released on 1979 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Though it incorporates much new material, this new edition preserves the general character of the book in providing a collection of solutions of the equations of diffusion and describing how these solutions may be obtained.
Author : E. S. Matsui
Publisher :
ISBN 13 :
Total Pages : 41 pages
Book Rating : 4.:/5 (227 download)
Download or read book Water Vapor Diffusion Through Protective Coatings written by E. S. Matsui and published by . This book was released on 1968 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method of measuring the permeability constant and the diffusion rate of water vapor through a polymer film by the radiochemical method is elaborated. It demonstrates that the radiochemical method, as compared to the ASTM Standard Method, is precise, sensitive and rapid. The radiochemical method is also useful in the investigation of other parameters which influence permeability of water vapor. (Author).
Author : William D. Callister, Jr.
Publisher : John Wiley & Sons
ISBN 13 : 1118061608
Total Pages : 1080 pages
Book Rating : 4.1/5 (18 download)
Download or read book Fundamentals of Materials Science and Engineering written by William D. Callister, Jr. and published by John Wiley & Sons. This book was released on 2012 with total page 1080 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This text treats the important properties of the three primary types of materials--metals, ceramics, and polymers--as well as composites, and the relationships that exist between the structural elements of these materials and their properties. Emphasis is placed on mechanical behavior and failure including, techniques that are employed to improve the mechanical and failure characteristics in terms of alteration of structural elements. Furthermore, individual chapters discuss each of corrosion, electrical, thermal, magnetic, and optical properties. New and cutting-edge materials are also discussed. Even if an instructor does not have a strong materials background (i.e., is from mechanical, civil, chemical, or electrical engineering, or chemistry departments), he or she can easily teach from this text. The material is not at a level beyond which the students can comprehend--an instructor would not have to supplement in order to bring the students up to the level of the text. Also, the author has attempted to write in a concise, clear, and organized manner, using terminology that is familiar to the students. Extensive student and instructor resource supplements are also provided."--Publisher's description.
Author :
Publisher :
ISBN 13 :
Total Pages : 1146 pages
Book Rating : 4.:/5 (319 download)
Download or read book Journal of Polymer Science written by and published by . This book was released on 1958 with total page 1146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Karl Jousten
Publisher : John Wiley & Sons
ISBN 13 : 3527688250
Total Pages : 1050 pages
Book Rating : 4.5/5 (276 download)
Download or read book Handbook of Vacuum Technology written by Karl Jousten and published by John Wiley & Sons. This book was released on 2016-06-14 with total page 1050 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive, standard work has been updated to remain an important resource for all those needing detailed knowledge of the theory and applications of vacuum technology. The text covers the existing knowledge on all aspects of vacuum science and technology, ranging from fundamentals to components and operating systems. It features many numerical examples and illustrations to help visualize the theoretical issues, while the chapters are carefully cross-linked and coherent symbols and notations are used throughout the book. The whole is rounded off by a user-friendly appendix of conversion tables, mathematical tools, material related data, overviews of processes and techniques, equipment-related data, national and international standards, guidelines, and much more. As a result, engineers, technicians, and scientists will be able to develop and work successfully with the equipment and environment found in a vacuum.
Author : H. K. Toh
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (824 download)
Download or read book A Study of Diffusion in Polymers Using C-14 Labelled Molecules written by H. K. Toh and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A novel method of measuring the self-diffusion coefficient of a penetrant molecule in various polymers was devised. This method makes use of a permeation experiment, where the radioactively labelled moleculee exchange with the chemically identical but nonradioactive molecules through the polymer membrane specimen. The rate of permeation is measured by the excitation of the non-radioactive molecules which act as the solvent in a liquid scintillation mixture, with subsequent excitation and fluorescence of the dissolved scintillator solutes. By maintaining the concentrations of the radioactive and non-radioactive molecules in the vapour phase at the same level, a self-diffusion coefficient D* at one precise penetrant concentration level can be determined. The diffusion coefficients measured were compared to those obtained from conventional sorption-desorption methods, and the comparison was discussed in terms of the basic definitions of the different diffusion coefficients. The diffusional behaviour in silicone rubber and S-B-S block copolymer was discussed mainly with reference to the free volume theory and the activated zone theory, with particular emphasis on chain mobility. Dynamic mechanical studies were also obtained in these polymers and related to the diffusion characteristics through chain mobility and free volume concepts. Diffusion in filled systems and the two-phase S-B-S copolymers was discussed with the help of mathematical models derived for analogous electrical conductivity through hetereogeneous medium, and a certain order of polystyrene domain distribution was indicated in the latter. Silica-silicone rubber interaction was considered and some conclusions were made.
Author :
Publisher :
ISBN 13 :
Total Pages : 1000 pages
Book Rating : 4.:/5 (334 download)
Download or read book Researches of the Electrotechnical Laboratory written by and published by . This book was released on 1968 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Frederik C. Krebs
Publisher : John Wiley & Sons
ISBN 13 : 1118312236
Total Pages : 375 pages
Book Rating : 4.1/5 (183 download)
Download or read book Stability and Degradation of Organic and Polymer Solar Cells written by Frederik C. Krebs and published by John Wiley & Sons. This book was released on 2012-04-02 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic photovoltaics (OPV) are a new generation of solar cells with the potential to offer very short energy pay back times, mechanical flexibility and significantly lower production costs compared to traditional crystalline photovoltaic systems. A weakness of OPV is their comparative instability during operation and this is a critical area of research towards the successful development and commercialization of these 3rd generation solar cells. Covering both small molecule and polymer solar cells, Stability and Degradation of Organic and Polymer Solar Cells summarizes the state of the art understanding of stability and provides a detailed analysis of the mechanisms by which degradation occurs. Following an introductory chapter which compares different photovoltaic technologies, the book focuses on OPV degradation, discussing the origin and characterization of the instability and describing measures for extending the duration of operation. Topics covered include: Chemical and physical probes for studying degradation Imaging techniques Photochemical stability of OPV materials Degradation mechanisms Testing methods Barrier technology and applications Stability and Degradation of Organic and Polymer Solar Cells is an essential reference source for researchers in academia and industry, engineers and manufacturers working on OPV design, development and implementation.
Author : United States. National Bureau of Standards
Publisher :
ISBN 13 :
Total Pages : 1180 pages
Book Rating : 4.F/5 ( download)
Download or read book Miscellaneous Publication - National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1934 with total page 1180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Rudolf Puffr
Publisher : CRC Press
ISBN 13 : 9780849349652
Total Pages : 326 pages
Book Rating : 4.3/5 (496 download)
Download or read book Lactam-based Polyamides written by Rudolf Puffr and published by CRC Press. This book was released on 1991-01-03 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume work examines general relationships among the structures, reactivity, and properties of polyamides important for predictions in such fields as materials science. The team of authors, including polymer research chemists, physicists, and specialists in technology and processing, compiled an extensive amount of literature (over 2300 references) to produce two volumes packed with text, tables, drawings, and first-hand information, much of it never before published. Topics include lactams and their production, properties, analysis, theory, and the technology of their polymerization, in addition to polyamides and their processing, modification, analysis, molecular characterization, structure, physical properties, degradation and stabilization, designing and application of products. Researchers and specialists in the preparation, modification, processing, structure, and properties of linear aliphatic polyamides will find Lactam-Based Polyamides, Volumes I and II to be invaluable texts.
Author : Akshai Runchal
Publisher : Springer Nature
ISBN 13 : 9811526702
Total Pages : 950 pages
Book Rating : 4.8/5 (115 download)
Download or read book 50 Years of CFD in Engineering Sciences written by Akshai Runchal and published by Springer Nature. This book was released on 2020-03-09 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prof. D. Brian Spalding, working with a small group of students and colleagues at Imperial College, London in the mid-to late-1960’s, single-handedly pioneered the use of Computational Fluid Dynamics (CFD) for engineering practice.This book brings together advances in computational fluid dynamics in a collection of chapters authored by leading researchers, many of them students or associates of Prof. Spalding. The book intends to capture the key developments in specific fields of activity that have been transformed by application of CFD in the last 50 years. The focus is on review of the impact of CFD on these selected fields and of the novel applications that CFD has made possible. Some of the chapters trace the history of developments in a specific field and the role played by Spalding and his contributions. The volume also includes a biographical summary of Brian Spalding as a person and as a scientist, as well as tributes to Brian Spalding by those whose life was impacted by his innovations. This volume would be of special interest to researchers, practicing engineers, and graduate students in various fields, including aerospace, energy, power and propulsion, transportation, combustion, management of the environment, health and pharmaceutical sciences.
Author :
Publisher :
ISBN 13 :
Total Pages : 448 pages
Book Rating : 4.:/5 (1 download)
Download or read book Army Research and Development written by and published by . This book was released on 1968 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Haijiang Wang
Publisher : CRC Press
ISBN 13 : 1439839190
Total Pages : 580 pages
Book Rating : 4.4/5 (398 download)
Download or read book PEM Fuel Cell Diagnostic Tools written by Haijiang Wang and published by CRC Press. This book was released on 2011-08-25 with total page 580 pages. Available in PDF, EPUB and Kindle. Book excerpt: PEM Fuel Cell Diagnostic Tools presents various tools for diagnosing PEM fuel cells and stacks, including in situ and ex situ diagnostic tools, electrochemical techniques, and physical/chemical methods. The text outlines the principles, experimental implementation, data processing, and application of each technique, along with its capabilities and weaknesses. The book covers many diagnostics employed in the characterization and determination of fuel cell performance. It discusses commonly used conventional tools, such as cyclic voltammetry, electrochemical impedance spectroscopy, scanning electron microscopy, and transmission electron microscopy. It also examines special tools developed specifically for PEM fuel cells, including transparent cells, cathode discharge, and current mapping, as well as recent advanced tools for diagnosis, such as magnetic resonance imaging and atomic force microscopy. For clarity, the book splits these diagnostic methodologies into two parts—in situ and ex situ. To better understand the tools, PEM fuel cell testing is also discussed. Each self-contained chapter provides cross-references to other chapters. Written by international scientists active in PEM fuel cell research, this volume incorporates state-of-the-art technical advances in PEM fuel cell diagnosis. The diagnostic tools presented help readers to understand the physical and chemical phenomena involved in PEM fuel cells.
