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Presenting in a coherent and accessible fashion current results in nanomagnetism, this book constitutes a comprehensive, rigorous and readable account, from first principles of the classical and quantum theories underlying the dynamics of magnetic nanoparticles subject to thermal fluctuations. Starting with the Larmor-like equation for a giant spin, both the stochastic (Langevin) equation of motion of the magnetization and the associated evolution (Fokker–Planck) equation for the distribution function of the magnetization orientations of ferromagnetic nanoparticles (classical spins) in a heat bath are developed along with their solution (using angular momentum theory) for arbitrary magnetocrystalline-Zeeman energy. Thus, observables such as the magnetization reversal time, relaxation functions, dynamic susceptibilities, etc. are calculated and compared with the predictions of classical escape rate theory including in the most general case spin-torque-transfer. Regarding quantum effects, which are based on the reduced spin density matrix evolution equation in Hilbert space as is described at length, they are comprehensively treated via the Wigner–Stratonovich formulation of the quantum mechanics of spins via their orientational quasi-probability distributions on a classically meaningful representation space. Here, as suggested by the relevant Weyl symbols, the latter is the configuration space of the polar angles. Hence, one is led, by mapping the reduced density matrix equation onto that space, to a master equation for the quasi-probability evolution akin to the Fokker–Planck equation which may be solved in a similar way. Thus, one may study in a classical-like manner the evolution of observables with spin number ranging from an elementary spin to molecular clusters to the classical limit, viz. a nanoparticle. The entire discussion hinges on the one-to-one correspondence between polarization operators in Hilbert space and the spherical harmonics allied to concepts of spin coherent states long familiar in quantum optics. Catering for the reader with only a passing knowledge of statistical and quantum mechanics, the book serves as an introductory text on a complicated subject where the literature is remarkably sparse. Получить ссылку |
Mass Transfer Processes with a Solid Phase Participation
Автор: A. Razinov
Год издания:
Учебное пособие предназначено для обучения магистров по направлению «Химическая технология» и его содержание соответствует ФГОС 3-го поколения для дисциплины «Процессы массопереноса в системах с участием твердой фазы». Изложенный в учебном пособии материал позволяет студентам восполнить и систематизировать знания по теории массообменных процессов, знакомит со спецификой массопереноса в системах с участием твердой фазы, а также с такими процессами, как адсорбция, ионный обмен, кристаллизация, растворение, мембранное разделение, конструкциями соответствующих аппаратов и методами их расчетов.
Modern Islamic Banking. Products and Processes in Practice
Автор: Natalie Schoon
Год издания:
A complete, detailed guide to modern Islamic banking fundamentals Modern Islamic Bankingprovides a comprehensive, up-to-the-minute guide to the products, processes and legal doctrines underlying Islamic banking. Written by a pioneering practitioner in the field, this book provides thorough guidance and expert-level perspective on the principles and applications of this alternative-banking model. You'll begin by learning the fundamentals, vocabulary and key concepts of Islamic banking, then explore key products including istisna'a, murabaha, musharaka, ijara, sukuk, and salam. Coverage then moves into practical applications of Islamic products to a variety of contexts including asset management, treasury, risk management, venture capital, SME finance, micro-finance and taxation. Regulatory frameworks are discussed in detail, including extensive coverage of post-financial crisis Islamic bank valuation. Islamic banking has experienced rapid growth over the past decade, a trend that is set to continue given the sector's successful weathering of the financial crisis. This book brings you up to speed on this alternative way of banking, and shows you how it applies within your own current practices. Understand the principles of Islamic banking and finance Learn the products, vocabulary and key concepts of the field Consider the applications in a variety of financial contexts Explore the regulatory frameworks and valuation of Islamic banks Islamic banking practices differ from Western banking in fundamental ways – it's these differences that shielded the sector during the global crisis, but they also require practitioners to understand a whole new set of rules, products and practices. Modern Islamic Banking gives you a solid understanding of the fundamentals and expert insight into modern practical applications.
Financial Models with Levy Processes and Volatility Clustering
Автор: Frank J. Fabozzi
Год издания:
An in-depth guide to understanding probability distributions and financial modeling for the purposes of investment management In Financial Models with Levy Processes and Volatility Clustering, the expert author team provides a framework to model the behavior of stock returns in both a univariate and a multivariate setting, providing you with practical applications to option pricing and portfolio management. They also explain the reasons for working with non-normal distribution in financial modeling and the best methodologies for employing it. The book's framework includes the basics of probability distributions and explains the alpha-stable distribution and the tempered stable distribution. The authors also explore discrete time option pricing models, beginning with the classical normal model with volatility clustering to more recent models that consider both volatility clustering and heavy tails. Reviews the basics of probability distributions Analyzes a continuous time option pricing model (the so-called exponential Levy model) Defines a discrete time model with volatility clustering and how to price options using Monte Carlo methods Studies two multivariate settings that are suitable to explain joint extreme events Financial Models with Levy Processes and Volatility Clustering is a thorough guide to classical probability distribution methods and brand new methodologies for financial modeling.
COSO Enterprise Risk Management. Establishing Effective Governance, Risk, and Compliance (GRC) Processes
Автор: Robert R. Moeller
Год издания:
A fully updated, step-by-step guide for implementing COSO's Enterprise Risk Management COSO Enterprise Risk Management, Second Edition clearly enables organizations of all types and sizes to understand and better manage their risk environments and make better decisions through use of the COSO ERM framework. The Second Edition discusses the latest trends and pronouncements that have affected COSO ERM and explores new topics, including the PCAOB's release of AS5; ISACA's recently revised CobiT; and the recently released IIA Standards. Offers you expert advice on how to carry out internal control responsibilities more efficiently Updates you on the ins and outs of the COSO Report and its emergence as the new platform for understanding all aspects of risk in today's organization Shows you how an effective risk management program, following COSO ERM, can help your organization to better comply with the Sarbanes-Oxley Act Knowledgeably explains how to implement an effective ERM program Preparing professionals develop and follow an effective risk culture, COSO Enterprise Risk Management, Second Edition is the fully revised, invaluable working resource that will show you how to identify risks, avoid pitfalls within your corporation, and keep it moving ahead of the competition.
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