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Физика
Различные книги в жанре Физика, доступные для чтения и скачиванияАннотация
Power Flow Control Solutions for a Modern Grid using SMART Power Flow Controllers [b]Provides students and practicing engineers with the foundation required to perform studies of power system networks and mitigate unique power flow problems Power Flow Control Solutions for a Modern Grid using SMART Power Flow Controllers is a clear and accessible introduction to power flow control in complex transmission systems. Starting with basic electrical engineering concepts and theory, the authors provide step-by-step explanations of the modeling techniques of various power flow controllers (PFCs), such as the voltage regulating transformer (VRT), the phase angle regulator (PAR), and the unified power flow controller (UPFC). The textbook covers the most up-to-date advancements in the Sen transformer (ST), including various forms of two-core designs and hybrid architectures for a wide variety of applications. Beginning with an overview of the origin and development of modern power flow controllers, the authors explain each topic in straightforward engineering terms—corroborating theory with relevant mathematics. Throughout the text, easy-to-understand chapters present characteristic equations of various power flow controllers, explain modeling in the Electromagnetic Transients Program (EMTP), compare transformer-based and mechanically-switched PFCs, discuss grid congestion and power flow limitations, and more. This comprehensive textbook: Describes why effective Power Flow Controllers should be viewed as impedance regulators Provides computer simulation codes of the various power flow controllers in the EMTP programming language Contains numerous worked examples and data cases to clarify complex issues Includes results from the simulation study of an actual network Features models based on the real-world experiences the authors, co-inventors of first-generation FACTS controllers Written by two acknowledged leaders in the field, Power Flow Control Solutions for a Modern Grid using SMART Power Flow Controllers is an ideal textbook for graduate students in electrical engineering, and a must-read for power engineering practitioners, regulators, and researchers.
Аннотация
Distributed Acoustic Sensing in Geophysics Distributed Acoustic Sensing in Geophysics Methods and Applications Distributed Acoustic Sensing (DAS) is a technology that records sound and vibration signals along a fiber optic cable. Its advantages of high resolution, continuous, and real-time measurements mean that DAS systems have been rapidly adopted for a range of applications, including hazard mitigation, energy industries, geohydrology, environmental monitoring, and civil engineering. Distributed Acoustic Sensing in Geophysics: Methods and Applications presents experiences from both industry and academia on using DAS in a range of geophysical applications. [b]Volume highlights include: DAS concepts, principles, and measurements Comprehensive review of the historical development of DAS and related technologies DAS applications in hydrocarbon, geothermal, and mining industries DAS applications in seismology DAS applications in environmental and shallow geophysics The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
Аннотация
Квантовая физика – очень странная штука. Она утверждает, что одна частица может находиться в двух местах одновременно. Больше того, частица – это еще и волна, и все происходящее в квантовом мире может быть представлено как взаимодействие волн – или частиц, как вам больше нравится. Все это было понятно уже к концу 1920-х годов. За это время было испробовано немало разных более или менее убедительных интерпретаций. Известный популяризатор науки Джон Гриббин отправляет нас в захватывающее путешествие по «большой шестерке» таких объяснений, от копенгагенской интерпретации до идеи множественности миров. Все эти варианты в разной степени безумны, но в квантовом мире безумность не равносильна ошибочности, и быть безумнее других не обязательно значит быть более неверным. «Шесть невозможностей» – поразительно лаконичный путеводитель по поистине удивительному миру.
Идеальная асинхронная машина. Описание, управление, моделирование. (Бакалавриат). Монография. - Александр Авигдорович Имас
Аннотация
Рассмотрена идеальная асинхронная машина, представляющая собой умозрительный физический объект, в максимально упрощенном виде воспроизводящий конструкцию асинхронной машины. Описано преобразование пространственно-распределенных электромагнитных взаимодействий элементов такой машины в двумерное векторное пространство. Получены векторно-матричные уравнения установившегося и переходного режимов и показано их преобразование в удобную для численных расчетов форму. Предложен алгоритм векторного управления током, устанавливающий прямую связь состояния ключей трехфазного моста силовой схемы питания электродвигателя с вектором потока и описана конструкция датчика вектора потока. Приведены результаты экспериментов на компьютерных моделях, имитирующих установившиеся и переходные режимы, а также поведение модели в процессах регулирования.
Аннотация
This book presents the foundations of nuclear physics, covering several themes that range from subatomic particles to stars. Also described in this book are experimental facts relating to the discovery of the electron, positron, proton, neutron and neutrino. The general properties of nuclei and the various nuclear de-excitation processes based on the nucleon layer model are studied in greater depth. <br /><br />This book addresses the conservation laws of angular momentum and parity, the multipolar transition probabilities E and M, gamma de-excitation, internal conversion and nucleon emission de-excitation processes. The fundamental properties of α and β disintegrations, electron capture, radioactive filiations, and Bateman equations are also examined. Nuclear Physics 1 is intended for high school physics teachers, students, research teachers and science historians specializing in nuclear physics.
Аннотация
Learn to deploy novel algorithms to improve and secure smart city infrastructure In Cyberphysical Smart Cities Infrastructures: Optimal Operation and Intelligent Decision Making, accomplished researchers Drs. M. Hadi Amini and Miadreza Shafie-Khah deliver a crucial exploration of new directions in the science and engineering of deploying novel and efficient computing algorithms to enhance the efficient operation of the networks and communication systems underlying smart city infrastructure. The book covers special issues on the deployment of these algorithms with an eye to helping readers improve the operation of smart cities. The editors present concise and accessible material from a collection of internationally renowned authors in areas as diverse as computer science, electrical engineering, operation research, civil engineering, and the social sciences. They also include discussions of the use of artificial intelligence to secure the operations of cyberphysical smart city infrastructure and provide several examples of the applications of novel theoretical algorithms. Readers will also enjoy: Thorough introductions to fundamental algorithms for computing and learning, large-scale optimizations, control theory for large-scale systems Explorations of machine learning and intelligent decision making in cyberphysical smart cities, including smart energy systems and intelligent transportation networks In-depth treatments of intelligent decision making in cyberphysical smart city infrastructure and optimization in networked smart cities Perfect for senior undergraduate and graduate students of electrical and computer engineering, computer science, civil engineering, telecommunications, information technology, and business, Cyberphysical Smart Cities Infrastructures is an indispensable reference for anyone seeking to solve real-world problems in smart cities.
Аннотация
Изложены физические основы механики, кинетической теории газов, термодинамики, колебательных и волновых процессов, волновой оптики, квантовой природы электромагнитного излучения, а также элементы квантовой механики и атомной физики, элементы квантовой электроники, квантовой статистики и квантовой физики твердого тела. Основное внимание уделено объяснению физического смысла законов и рассматриваемых явлений. Соответствует ФГОС ВО последнего поколения. Для студентов всех технических направлений бакалавриата.