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Dielectric Properties Of Porous Media

Author: S.O. Gladkov
Publisher: Springer Science & Business Media
ISBN: 3662067056
Size: 58.93 MB
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This monograph systematically presents the fundamentals of theoretical and experimental research into the most important physical characteristics of porous structures. Non-standard behavior of certain physical parameters, such as the breakdown of the electric field of porous substances, is described. The method of calculation of the thermal conductivity coefficient of porous dielectrics, based on the non-equilibrium principle, is illustrated in detail. This approach is then applied to the investigation of the properties of "disparate" substances such as cellulose matrices, composites, and fibrous structures. The book is intended for physicists, physical chemists and materials scientists at research and postgraduate levels; it may also be helpful to engineers and technical workers in the applied sciences.

Electronic Structure And Magnetism Of Complex Materials

Author: David J. Singh
Publisher: Springer Science & Business Media
ISBN: 3662053101
Size: 24.14 MB
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Recent developments in electronic structure theory have led to a new understanding of magnetic materials at the microscopic level. This enables a truly first-principles approach to investigations of technologically important magnetic materials. Among the advances treated here have been practical schemes for handling non-collinear magnetic systems, including relativity, and an understanding of the origins and role of orbital magnetism within band structure formalisms. This book provides deep theoretical insight into magnetism, mahneatic materials, and magnetic systems. It covers these recent developments with review articles by some of the main originators of these developments.

Point Defects In Semiconductors And Insulators

Author: Johann-Martin Spaeth
Publisher: Springer Science & Business Media
ISBN: 3642556159
Size: 75.38 MB
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The precedent book with the title "Structural Analysis of Point Defects in Solids: An introduction to multiple magnetic resonance spectroscopy" ap peared about 10 years ago. Since then a very active development has oc curred both with respect to the experimental methods and the theoretical interpretation of the experimental results. It would therefore not have been sufficient to simply publish a second edition of the precedent book with cor rections and a few additions. Furthermore the application of the multiple magnetic resonance methods has more and more shifted towards materials science and represents one of the important methods of materials analysis. Multiple magnetic resonances are used less now for "fundamental" studies in solid state physics. Therefore a more "pedestrian" access to the meth ods is called for to help the materials scientist to use them or to appreciate results obtained by using these methods. We have kept the two introduc tory chapters on conventional electron paramagnetic resonance (EPR) of the precedent book which are the base for the multiple resonance methods. The chapter on optical detection of EPR (ODEPR) was supplemented by sections on the structural information one can get from "forbidden" transitions as well as on spatial correlations between defects in the so-called "cross relaxation spectroscopy". High-field ODEPR/ENDOR was also added. The chapter on stationary electron nuclear double resonance (ENDOR) was supplemented by the method of stochastic END OR developed a few years ago in Paderborn which is now also commercially available.

Electrokinetics For Petroleum And Environmental Engineers

Author: G. V. Chilingar
Publisher: John Wiley & Sons
ISBN: 1118842839
Size: 51.60 MB
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Electrokinetics is a term applied to a group of physicochemicalphenomena involving the transport of charges, action of chargedparticles, effects of applied electric potential and fluidtransport in various porous media to allow for a desired migrationor flow to be achieved. These phenomena include electrokinetics,electroosmosis, ion migration, electrophoresis, streaming potentialand electroviscosity. These phenomena are closely related and allcontribute to the transport and migration of different ionicspecies and chemicals in porous media. The physicochemical andelectrochemical properties of a porous medium and the pore fluid,and the magnitudes of the applied electrical potential all impactthe direction and velocity of the fluid flow. Also, an electricalpotential is generated upon the forced passage of fluid carryingcharged particles through a porous medium. The use of electrokinetics in the field of petroleum andenvironmental engineering was groundbreaking when George Chilingarpioneered its use decades ago, but it has only been in recent yearsthat its full potential has been studied. This is the firstvolume of its kind ever written, offering the petroleum orenvironmental engineer a practical “how to” book onusing electrokinetics for more efficient and better oil recoveryand recovery from difficult reservoirs. This groundbreaking volume is a must-have for any petroleumengineer working in the field, and for students and faculty inpetroleum engineering departments worldwide.

Low Dielectric Constant Materials For Ic Applications

Author: Paul S. Ho
Publisher: Springer Science & Business Media
ISBN: 3642559085
Size: 54.24 MB
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Low dielectric constant materials are an important component of microelectronic devices. This comprehensive book covers the latest low-dielectric-constant (low-k) materials technology, thin film materials characterization, integration and reliability for back-end interconnects and packaging applications in microelectronics. Highly informative contributions from leading academic and industrial laboratories provide comprehensive information about materials technologies for

Piezo Active Composites

Author: Vitaly Yu. Topolov
Publisher: Springer Science & Business Media
ISBN: 3642383548
Size: 15.43 MB
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The book is devoted to the problem of microgeometry properties and anisotropy relations in modern piezo-active composites. These materials are characterized by various electromechanical properties and remarkable abilities to convert mechanical energy into electric energy and vice versa. Advantages of the performance of the composites are discussed in the context of the orientation effects, first studied by the authors for main connectivity patterns and with due regard to a large anisotropy of effective piezoelectric coefficients and electromechanical coupling factors. The novelty of the book consists in the systematization results of orientation effects, the anisotropy of piezoelectric properties and their role in forming considerable hydrostatic piezoelectric coefficients, electromechanical coupling factors and other parameters in the composites based on either ferroelectric ceramic or relaxor-ferroelectric single crystals.

Fundamentals Of Mold Growth In Indoor Environments And Strategies For Healthy Living

Author: Olaf C. G. Adan
Publisher: Springer Science & Business Media
ISBN: 9086867227
Size: 10.77 MB
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Today, indoor mold and moisture, and their associated health effects, are a society-wide problem. The economic consequences of indoor mold and moisture are enormous. Their global dimension has been emphasized in several recent international publications, stressing that the most important means for avoiding adverse health effects is the prevention (or minimization) of persistent dampness and microbial growth on interior surfaces and in building structures.This book aims to describe the fundamentals of indoor mold growth as a prerequisite to tackle mold growth in the existing building stock as well as in future energy efficient buildings. It brings together different disciplinary points of view on indoor mold, ranging from physics and material science to microbiology and health sciences. The contents have been outlined according to three main issues: Fundamentals, particularly addressing the crucial roles of water and materials, Health, including a state-of-the-art description of the health-related effects of indoor molds, and Strategies, integrating remediation, prevention and policies.

Percolation Theory For Flow In Porous Media

Author: Allen Hunt
Publisher: Springer Science & Business Media
ISBN: 3540897895
Size: 37.63 MB
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Why would we wish to start a 2nd edition of “Percolation theory for ?ow in porous media” only two years after the ?rst one was ?nished? There are essentially three reasons: 1) Reviews in the soil physics community have pointed out that the introductory material on percolation theory could have been more accessible. Our additional experience in teaching this material led us to believe that we could improve this aspect of the book. In the context of rewriting the ?rst chapter, however, we also expanded the discussion of Bethe lattices and their relevance for “classical” - ponents of percolation theory, thus giving more of a basis for the discussion of the relevance of hyperscaling. This addition, though it will not tend to make the book more accessible to hydrologists, was useful in making it a more complete reference, and these sections have been marked as being possible to omit in a ?rst reading. It also forced a division of the ?rst chapter into two. We hope that physicists without a background in percolation theory will now also ?nd the - troductory material somewhat more satisfactory. 2) We have done considerable further work on problems of electrical conductivity, thermal conductivity, and electromechanical coupling.

Metal Dielectric Interfaces In Gigascale Electronics

Author: Ming He
Publisher: Springer Science & Business Media
ISBN: 9781461418122
Size: 20.84 MB
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Metal-dielectric interfaces are ubiquitous in modern electronics. As advanced gigascale electronic devices continue to shrink, the stability of these interfaces is becoming an increasingly important issue that has a profound impact on the operational reliability of these devices. In this book, the authors present the basic science underlying the thermal and electrical stability of metal-dielectric interfaces and its relationship to the operation of advanced interconnect systems in gigascale electronics. Interface phenomena, including chemical reactions between metals and dielectrics, metallic-atom diffusion, and ion drift, are discussed based on fundamental physical and chemical principles. Schematic diagrams are provided throughout the book to illustrate interface phenomena and the principles that govern them. Metal-Dielectric Interfaces in Gigascale Electronics provides a unifying approach to the diverse and sometimes contradictory test results that are reported in the literature on metal-dielectric interfaces. The goal is to provide readers with a clear account of the relationship between interface science and its applications in interconnect structures. The material presented here will also be of interest to those engaged in field-effect transistor and memristor device research, as well as university researchers and industrial scientists working in the areas of electronic materials processing, semiconductor manufacturing, memory chips, and IC design.