Dielectric Relaxation And Dynamics Of Polar Molecules

Author : Vladimir I. Ga?duk
Publisher : World Scientific
Page : 664 pages
File Size : 44,5 Mb
Release : 1999
Category : Science
ISBN : 9810221231

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Dielectric Relaxation and Dynamics of Polar Molecules by Vladimir I. Ga?duk Pdf

The topics covered in this book provide a qualitative and sometimes quantitative classic description of the wide-band 0-THz dielectric spectra of polar liquids, molecular libration-rotation (which is the reason for dielectric loss and absorption of electromagnetic waves), simple molecular models differing by the intermolecular-potential profiles, and present a comparison between the theoretical and experimental dependencies and derivation of the main results. A new feature is the application of a number of analytical models to different substances, including strongly absorbing nonassociating liquids, liquid water, water bound by macromolecules, and gas-like liquids. The presentation of the theory in this book is also new. It is based on the dynamic method in which the Brownian reorientations are considered implicitly, without direct solution of stochastic equations. This approach simplifies the theory. Senior students and experimentalists will find many of the results valuable.

Author : Wolfgang Haase,Stanislaw Wróbel
Publisher : Springer Science & Business Media
Page : 716 pages
File Size : 52,6 Mb
Release : 2013-03-09
Category : Science
ISBN : 9783662097472

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Relaxation Phenomena by Wolfgang Haase,Stanislaw Wróbel Pdf

The authors describe the electric, magnetic and other relaxational processes in a wide spectrum of materials: liquid crystals, molecular magnets, polymers, high-Tc superconductors and glasses. The book summarizes the phenomenological fundamentals and the experimental methods used. A detailed description of molecular and collective dynamics in the broad range of liquid crystals is presented. Magnetic systems, high-Tc superconductors, polymers and glasses are an important subject of matter. It is shown that the researchers working on relaxation processes in different fields of materials sciences are dealing with the same physical fundamentals, but are sometimes using slightly different terms. The book is addressed to scientists, engineers, graduate and undergraduate students, experimentalists and theorists in physics, chemistry, materials sciences and electronic engineering. Many internationally well known experts contribute to it.

Author : Nora E. Hill
Publisher : Unknown
Page : 506 pages
File Size : 51,9 Mb
Release : 1969
Category : Science
ISBN : UOM:39076006382001

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Dielectric Properties and Molecular Behaviour by Nora E. Hill Pdf

Author : Harry Schulz,André Simoes,Raquel Lobosco
Publisher : BoD – Books on Demand
Page : 462 pages
File Size : 54,6 Mb
Release : 2011-12-22
Category : Science
ISBN : 9789533075969

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Hydrodynamics by Harry Schulz,André Simoes,Raquel Lobosco Pdf

The phenomena related to the flow of fluids are generally complex, and difficult to quantify. New approaches - considering points of view still not explored - may introduce useful tools in the study of Hydrodynamics and the related transport phenomena. The details of the flows and the properties of the fluids must be considered on a very small scale perspective. Consequently, new concepts and tools are generated to better describe the fluids and their properties. This volume presents conclusions about advanced topics of calculated and observed flows. It contains eighteen chapters, organized in five sections: 1) Mathematical Models in Fluid Mechanics, 2) Biological Applications and Biohydrodynamics, 3) Detailed Experimental Analyses of Fluids and Flows, 4) Radiation-, Electro-, Magnetohydrodynamics, and Magnetorheology, 5) Special Topics on Simulations and Experimental Data. These chapters present new points of view about methods and tools used in Hydrodynamics.

Author : Peter Josef William Debye
Publisher : Unknown
Page : 174 pages
File Size : 43,8 Mb
Release : 2012-08-01
Category : Dielectrics
ISBN : 1258453916

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Polar Molecules by Peter Josef William Debye Pdf

Author : Ranko Richert
Publisher : Springer
Page : 372 pages
File Size : 44,8 Mb
Release : 2018-06-18
Category : Science
ISBN : 9783319775746

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Nonlinear Dielectric Spectroscopy by Ranko Richert Pdf

This book introduces the ideas and concepts of nonlinear dielectric spectroscopy, outlines its history, and provides insight into the present state of the art of the experimental technology and understanding of nonlinear dielectric effects. Emphasis is on what can be learned from nonlinear experiments that could not be derived from the linear counterparts. The book explains that nonlinear dielectric spectroscopy can be used as a tool to measure structural recovery or physical aging, as well as connections between dynamics and thermodynamic variables such as enthalpy and entropy. Supercooled liquids in their viscous regime are ideal candidates for investigating nonlinear effects, because they are particularly sensitive to changes in temperature, and thus also to changes in the electric field. Other interesting materials covered are plastic crystals and complex liquids near criticality. The book also points out that, compared with other techniques such as mechanical shear experiments, the nonlinear regime of dielectric spectroscopy is special in the sense that the energies involved always remain small compared with thermal energies. To demonstrate this, nonlinear features of mechanical experiments are discussed. Theoretical approaches to nonlinear effects are particularly complicated because the tools available for the linear regime no longer apply. As a result, there is no single generally accepted theory to nonlinear dielectric responses of real liquids. Various approaches to nonlinear dielectric features have been reported, and the different aspects are communicated in several chapters. The book communicates recent progress most effectively through individual contributions from specialists in their respective fields. Chapter 'Third and Fifth Harmonic Responses in Viscous Liquids' is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Author : Yuri P. Kalmykov
Publisher : Springer
Page : 206 pages
File Size : 50,7 Mb
Release : 2012-10-19
Category : Science
ISBN : 9789400750128

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Recent Advances in Broadband Dielectric Spectroscopy by Yuri P. Kalmykov Pdf

This volume considers experimental and theoretical dielectric studies of the structure and dynamics of complex systems. Complex systems constitute an almost universal class of materials including associated liquids, polymers, biomolecules, colloids, porous materials, doped ferroelectric crystals, nanomaterials, etc. These systems are characterized by a new "mesoscopic" length scale, intermediate between molecular and macroscopic. The mesoscopic structures of complex systems typically arise from fluctuations or competing interactions and exhibit a rich variety of static and dynamic behaviour. This growing field is interdisciplinary; it complements solid state and statistical physics, and overlaps considerably with chemistry, chemical engineering, materials science, and biology. A common theme in complex systems is that while such materials are disordered on the molecular scale and homogeneous on the macroscopic scale, they usually possess a certain degree of order on an intermediate, or mesoscopic, scale due to the delicate balance of interaction and thermal effects. In the present Volume it is shown how the dielectric spectroscopy studies of complex systems can be applied to determine both their structures and dynamics.

Author : Dennis Dwayne Klug
Publisher : Unknown
Page : 312 pages
File Size : 41,6 Mb
Release : 1969
Category : Electronic
ISBN : WISC:89010961548

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Dielectric Relaxation of Nonrigid Molecules by Dennis Dwayne Klug Pdf

Author : William T. Coffey
Publisher : John Wiley & Sons
Page : 782 pages
File Size : 51,8 Mb
Release : 2009-09-09
Category : Science
ISBN : 9780470141991

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Relaxation Phenomena in Condensed Matter by William T. Coffey Pdf

Russian contributors provide a synthesis of ideas drawn from dielectric, magnetic and elastic relaxation. Divided into three sections, the book commences with dielectric and related processes in simple liquids. Part two deals with the structure and dielectric relaxation of aqueous solutions. Lastly, it addresses magnetic and dielectric relaxation in liquid crystals and elastic relaxation in orientable polymers.

Author : G.C. Tabisz,Murray N. Neuman
Publisher : Springer Science & Business Media
Page : 581 pages
File Size : 51,7 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401101837

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Collision- and Interaction-Induced Spectroscopy by G.C. Tabisz,Murray N. Neuman Pdf

Collision-or interaction-induced spectroscopy refers to radiative transitions, which are forbidden in free atoms or molecules, but which occur in clusters of interacting atoms or molecules. The most common phenomena are induced absorption, in the infrared region, and induced light scattering, which involves inelastic scattering of visible laser light. The particle interactions giving rise to the necessary induced dipole moments and polarizabilities are modelled at long range by multipole expansions; at short range, electron overlap and exchange mechanisms come into play. Information on atomic and molecular interactions and dynamics in dense media on a picosecond timescale may be drawn from the spectra. Collision-induced absorption in the infrared was discovered at the University of Toronto in 1949 by Crawford, Welsh and Locke who studied liquid O and N. Through the 1950s and 1960s, 2 2 experimental elucidation of the phenomenon, particularly in gases, continued and theoretical underpinnings were established. In the late 1960s, the related phenomenon of collision-induced light scattering was first observed in compressed inert gases. In 1978, an 'Enrico Fermi' Summer School was held at Varenna, Italy, under the directorship of J. Van Kranendonk. The lectures, there, reviewed activity from the previous two decades, during which the approach to the subject had not changed greatly. In 1983, a highly successful NATO Advanced Research Workshop was held at Bonas, France, under the directorship of G. Birnbaum. An important outcome of that meeting was the demonstration of the maturity and sophistication of current experimental and theoretical techniques.

Author : Bozzano G Luisa
Publisher : Elsevier
Page : 582 pages
File Size : 45,8 Mb
Release : 2012-12-02
Category : Science
ISBN : 9780444600691

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Dielectrics in Time-Dependent Fields by Bozzano G Luisa Pdf

Theory of Electric Polarization, Volume II: Dielectrics in Time-Dependent Fields focuses on the processes, reactions, and principles involved in the application of dielectrics in time-dependent fields, as well as the Kerr effect, statistical mechanics, and polarization. The publication first examines the phenomenological theory of linear dielectrics in time-dependent fields; empirical description of dielectric relaxation; and the relationship between macroscopic and molecular dielectric relaxation behavior. Concerns cover the relationship between macroscopic and microscopic correlation functions; statistical mechanics of linear dissipative systems and the relationship between response functions and correlation functions; superpositions of distribution functions; and the use of complex dielectric constant in problems with time-dependent field sources. The book then ponders on the dipole correlation function, polarization in the infrared and optical frequency range, and the Kerr effect and related phenomena. Discussions focus on the Kerr effect in condensed systems, extensions of the Kerr effect, extrapolation of the refractive index to infinite wavelength, results obtained from computer simulations, rotational diffusion, and general aspects of molecular reorientation. The manuscript tackles the dielectric properties of molecular solids and liquid crystals and experimental determination of permanent dipole and quadrupole moments. The text is a valuable source of data for researchers interested in the application of dielectrics in time-dependent fields.

Author : Dumitru Baleanu,José António Tenreiro Machado,Albert C. J. Luo
Publisher : Springer Science & Business Media
Page : 302 pages
File Size : 51,9 Mb
Release : 2011-11-19
Category : Technology & Engineering
ISBN : 9781461404576

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Fractional Dynamics and Control by Dumitru Baleanu,José António Tenreiro Machado,Albert C. J. Luo Pdf

Fractional Dynamics and Control provides a comprehensive overview of recent advances in the areas of nonlinear dynamics, vibration and control with analytical, numerical, and experimental results. This book provides an overview of recent discoveries in fractional control, delves into fractional variational principles and differential equations, and applies advanced techniques in fractional calculus to solving complicated mathematical and physical problems.Finally, this book also discusses the role that fractional order modeling can play in complex systems for engineering and science.

Author : Bernard Valeur,Mário Nuno Berberan-Santos
Publisher : John Wiley & Sons
Page : 595 pages
File Size : 40,8 Mb
Release : 2013-03-27
Category : Science
ISBN : 9783527650026

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Molecular Fluorescence by Bernard Valeur,Mário Nuno Berberan-Santos Pdf

Molecular Fluorescence This second edition of the well-established bestseller is completely updated and revised with approximately 30 % additional material, including two new chapters on applications, which has seen the most significant developments. The comprehensive overview written at an introductory level covers fundamental aspects, principles of instrumentation and practical applications, while providing many valuable tips. For photochemists and photophysicists, physical chemists, molecular physicists, biophysicists, biochemists and biologists, lecturers and students of chemistry, physics, and biology.

Author : William Henry Hunter Woodward
Publisher : Unknown
Page : 128 pages
File Size : 53,7 Mb
Release : 2021
Category : Broadband dielectric spectroscopy
ISBN : 0841298483

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Broadband Dielectric Spectroscopy by William Henry Hunter Woodward Pdf

"This book is about Broadband Dielectric Spectroscopy as a Modern Analytical Technique"--

Author : Sylwester J. Rzoska,Vitaly Zhelezny
Publisher : Springer Science & Business Media
Page : 395 pages
File Size : 52,7 Mb
Release : 2006-02-28
Category : Science
ISBN : 9781402027048

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Nonlinear Dielectric Phenomena in Complex Liquids by Sylwester J. Rzoska,Vitaly Zhelezny Pdf

Complex liquids constitute a basic element in modern materials science; their significant features include self-assembly, mesoscale structures, complex dynamics, unusual phases and enormous sensitivity to perturbations. Understanding their nature and properties are a great challenge to modern materials science that demands novel approaches. This book focuses on nonlinear dielectric phenomena, particularly on nonlinear dielectric spectroscopy (NDS), which may be considered a possible successor to broadband dielectric spectroscopy (BDS). NDS phenomena directly coupled to mesoscale heterogeneity fluctuations, so information obtained in this way is basically complementary to BDS tests. The book also discusses the application of NDS in a set of complex liquid systems: glassy liquids, liquid crystals, liquids with critical point phenomena, and bio-relevant liquids. The complementary application of NDS and BDS may allow the discovery of universal patterns for the whole category of complex liquids. Written by specialists in the field of nonlinear dielectric studies, theoreticians and experimentalists, ranging from solid state physics to biophysics, the book is organized so that it can serve as a basic textbook for a non-experienced reader.