Download or read book Relaxation Processes and Time Scale Transformation written by S. Teitler and published by . This book was released on 1982 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stochastic processes with a special class of non-stationary transition rates (NSTR) that can be related to stationary rates (STR) by time scale transformations are considered. Calculations are carried out on the time scale on which the process has STR and then related to the time scale of measurements by a time scale transformation. Application is made to Gaussian Markoff processes with a single transition rate. The resulting equilibrium autocorrelation function departs from weak stationarity. A response function is related to the Autocorrelation function and specialized to relaxation processes to yield a model consistent with Ngai's recent model of relaxation. The model is therefore widely applicable in the description of measured relaxation behavior and leads naturally to Ngai's renormalization relation for excitation energies. On the basis of the success of the model, consideration is given to the possibility that the process should be viewed as one with STR and an intrinsic time scale so that the process only appears to have NSTR on the time scale of measurements. (Author).
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 1390 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Download or read book Time Resolved Light Scattering from Excitons written by Heinrich Stolz and published by Springer. This book was released on 2006-04-11 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time-Resolved Light-Scattering from Excitons investigates exciton states in semiconductors and their relaxation processes by time-resolved light-scattering. The reader will gain both a clear understanding of the theoretical aspects of this method and profound knowledge of the experimental state-of-the-art. The development of quantum-beat spectroscopy for excitons is also discussed.
Download or read book The Scaling of Relaxation Processes written by Friedrich Kremer and published by Springer. This book was released on 2018-07-20 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dielectric properties especially of glassy materials are nowadays explored at widely varying temperatures and pressures without any gap in the spectral range from μHz up to the Infrared, thus covering typically 20 decades or more. This extraordinary span enables to trace the scaling and the mutual interactions of relaxation processes in detail, e.g. the dynamic glass transition and secondary relaxations, but as well far infrared vibrations, like the Boson peak. Additionally the evolution of intra-molecular interactions in the course of the dynamic glass transition is also well explored by (Fourier Transform) Infrared Spectroscopy. This volume within 'Advances in Dielectrics' summarizes this knowledge and discusses it with respect to the existing and often competing theoretical concepts.
Download or read book Probability Theory on Vector Spaces III written by D Szynal and published by Springer. This book was released on 2006-12-08 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rock Dynamics and Applications State of the Art written by Jian Zhao and published by CRC Press. This book was released on 2013-05-13 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock dynamics studies the response of rock materials and rock masses under dynamic loading conditions. In the last a couple of decades, the development of experimental and computational techniques has been able to capture the progress of fracturing in microsecond steps, allowing the exploration on how the fracture is initiated, propagated and branc
Download or read book Self Organized Criticality written by Henrik Jeldtoft Jensen and published by Cambridge University Press. This book was released on 1998 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: A clear and concise introduction to this new, cross-disciplinary field.
Download or read book Disorder Effects on Relaxational Processes written by Ranko Richert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 745 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of non-crystalline materials has seen the emergence of many challeng ing problems during its long history. In recent years, the interest in polymeric and biological disordered matter has stimulated new activities which in turn have enlarged the organic and inorganic glass community. The current research fields and recent progress have extended our knowledge of the rich phenomenol ogy of glassy systems, where the role of disorder is fundamental for the underlying microscopic dynamics. In addition, despite the lack of a unified theory, many interesting theoretical models have recently evolved. The present volume offers the reader a collection of topics representing the current state in the understanding of disorder effects as well as a survey of the basic problems and phenomena involved. The task of compiling a book devoted to disordered systems has benefited much from a seminar organized by the W.-E. Heraeus Foundation in Bad Honnef in April 1992, where we had the opportunity to discuss the project with most of the authors. Here we wish to thank the Heraeus Foundation for their support, and the authors and Springer-Verlag, especially Dr. Marion Hertel, for the pleasant cooperation.
Download or read book Pulse and Fourier Transform NMR written by Thomas C. Farrar and published by Elsevier. This book was released on 2012-12-02 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulse and Fourier Transform NMR: Introduction to Theory and Methods presents the different types of pulse experiments that are commonly used and provides the theoretical background necessary for understanding these techniques. This book evaluates the practical application of pulse methods and the necessary instrumentation. Organized into seven chapters, this book begins with an overview of the NMR fundamentals and the basic pulse methods. This text then summarizes the important features of pulse spectrometers. Other chapters consider the rationale, the advantages, and the limitations of Fourier transform NMR methods. This book discusses as well how the idea of the rotating frame can be utilized to understand certain experiments that extend the range of application of pulse methods. The final chapter deals with a few significant special uses of pulse techniques. This book is a valuable resource for chemists and readers who are familiar with high resolution NMR but with no background in pulse methods.
Download or read book Characterization of Solid Materials and Heterogeneous Catalysts written by Michel Che and published by John Wiley & Sons. This book was released on 2012-04-16 with total page 1313 pages. Available in PDF, EPUB and Kindle. Book excerpt: This two-volume book provides an overview of physical techniques used to characterize the structure of solid materials, on the one hand, and to investigate the reactivity of their surface, on the other. Therefore this book is a must-have for anyone working in fields related to surface reactivity. Among the latter, and because of its most important industrial impact, catalysis has been used as the directing thread of the book. After the preface and a general introduction to physical techniques by M. Che and J.C. Vedrine, two overviews on physical techniques are presented by G. Ertl and Sir J.M. Thomas for investigating model catalysts and porous catalysts, respectively. The book is organized into four parts: Molecular/Local Spectroscopies, Macroscopic Techniques, Characterization of the Fluid Phase (Gas and/ or Liquid), and Advanced Characterization. Each chapter focuses upon the following important themes: overview of the technique, most important parameters to interpret the experimental data, practical details, applications of the technique, particularly during chemical processes, with its advantages and disadvantages, conclusions.
Download or read book Encyclopedic Handbook of Emulsion Technology written by Johan Sjoblom and published by CRC Press. This book was released on 2001-03-16 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt: A discussion of fundamental characteristics, theories and applications for liquid-liquid colloidal dispersions. It profiles experimental and traditional measurement techniques in a variety of emulsified systems, including rheology, nuclear magnetic resonance, dielectric spectroscopy, microcalorimetry, video enhanced microscopy, and conductivity.
Download or read book Metallic Glasses written by Keith K.C. Chan and published by MDPI. This book was released on 2018-07-02 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Metallic Glasses" that was published in Metals
Download or read book Complex Dynamics of Glass Forming Liquids written by Wolfgang Götze and published by Oxford University Press on Demand. This book was released on 2009 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous condensed matter can exhibit complex motions on time scales which extend up to those relevant for the functioning of biomaterials. The book presents the derivation of a microscopic theory for amorphous matter, which exhibits the evolution of such complex motions as a new paradigm of strongly interacting particle systems.e
Download or read book Two Dimensional 2D NMR Methods written by Konstantin Ivanov and published by John Wiley & Sons. This book was released on 2023-07-03 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: TWO-DIMENSIONAL (2D) NMR METHODS Practical guide explaining the fundamentals of 2D-NMR for experienced scientists as well as relevant for advanced students Two-Dimensional (2D) NMR Methods is a focused work presenting an overview of 2D-NMR concepts and techniques, including basic principles, practical applications, and how NMR pulse sequences work. Contributed to by global experts with extensive experience in the field, Two-Dimensional (2D) NMR Methods provides in-depth coverage of sample topics such as: Basics of 2D-NMR, data processing methods (Fourier and beyond), product operator formalism, basics of spin relaxation, and coherence transfer pathways Multidimensional methods (single- and multiple-quantum spectroscopy), NOESY (principles and applications), and DOSY methods Multiple acquisition strategies, anisotropic NMR in molecular analysis, ultrafast 2D methods, and multidimensional methods in bio-NMR TROSY (principles and applications), field-cycling and 2D NMR, multidimensional methods and paramagnetic NMR, and relaxation dispersion experiments This text is a highly useful resource for NMR specialists and advanced students studying NMR, along with users in research, academic and commercial laboratories that study or conduct experiments in NMR.
Download or read book Handbook of Thermal Analysis and Calorimetry written by and published by Elsevier. This book was released on 2011-09-22 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is Volume 5 of a Handbook that has been well-received by the thermal analysis and calorimetry community. All chapters in all five volumes are written by international experts in the subject. The fifth volume covers recent advances in techniques and applications that complement the earlier volumes. The chapters refer wherever possible to earlier volumes, but each is complete in itself. The latest recommendations on Nomenclature are also included. Amongst the important new techniques that are covered are micro-thermal analysis, pulsed thermal analysis, fast-scanning calorimetery and the use of quartz-crystal microbalances. There are detailed reviews of heating - stage spectroscopy, the range of electrical techniques available, applications in rheology, catalysis and the study of nanoparticles. The development and application of isoconversional methods of kinetic analysis are described and there are comprehensive chapters on the many facets of thermochemistry and of measuring thermophysical properties. Applications to inorganic and coordination chemistry are reviewed, as are the latest applications in medical and dental sciences, including the importance of polymorphism. The volume concludes with a review of the use and importance of thermal analysis and calorimetry in quality control.* Updates and complements previous volumes* Internationally recognized experts as authors * Each chapter complete in itself
Download or read book Hydration Processes in Biology written by Marie-Claire Bellissent-Funel and published by IOS Press. This book was released on 1999 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction of water at organic surfaces or interfaces is of fundamental and technological interest and importance in chemistry, physics and biology. Progress towards an in-depth, molecular interpretation of the structure and dynamics of interfacial water needs a range of novel experimental and simulation techniques. We are now reaching the stage at which we understand, at the molecular level, the mutual perturbation at a macromolecule/water interface. The aims of this book are to provide with a comprehensive background to the properties of bulk water at the microscopic level and with a substantial account of the theoretical and experimental contributions which have been done to understand the role of water in various systems from some model systems to the more complex ones such as the biological systems.
Download or read book Keynote lectures in selected topics of polymer science written by Evaristo Riande and published by Editorial CSIC - CSIC Press. This book was released on 1995 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
