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 Название: Creep: Fatigue Models of Composites and Nanocomposites
Автор: Leo Razdolsky
Издательство: CRC Press
Год: 2023
Страниц: 240
Язык: английский
Формат: pdf (true)
Размер: 10.1 MB
In recent years, the application of composites and nanocomposites has been increasing steadily in industries such as aerospace, automotive, marine, and civil engineering. It is among the most complex and crucial aspects of the mechanics of a deformable solid, due to several specific phenomena and analytic factors arising from cyclic loading. The problems are primarily associated with the development of fatigue damage, and the need to assess the cyclic and structural instability of composite and nanocomposite materials. The study of structural strength under cyclic loading has gained much attention, especially in aircraft manufacturing, power engineering, aviation, and rocket technology. Cyclic loading significantly reduces creep-fatigue lifespan during the entire frequency range. It is clear that characteristics such as endurance limit, static creep limits and long-term static strength will not suffice in the design criteria for fatigue life. New aspects have emerged in high-temperature strength - cyclical creep and long-term cyclic strength, leading to the creation of new methods and means of determining the resistance of composites and nanocomposites materials and continuum damage development under cyclic loading to the creation of appropriate physical models. Particularly relevant is the intensification of creep by high-frequency cyclic loading in composite materials, which usually occurs at high temperatures.
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Разместил: Ingvar16 16-05-2023, 05:46 | Комментарии: 0 | Подробнее
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 Название: Thermal Energy Systems: Design, Computational Techniques, and Applications
Автор: Ashwani Kumar, Varun Pratap Singh, Chandan Swaroop Meena
Издательство: CRC Press
Год: 2023
Страниц: 301
Язык: английский
Формат: pdf (true)
Размер: 19.5 MB
The text provides in-depth knowledge about recent advances in solar collector systems, photovoltaic systems, the role of thermal energy systems in buildings, phase change materials, geothermal energy, biofuels, and thermal management systems for EVs in social and industrial applications. It further aims toward the inclusion of innovation and implementation of strategies for CO2 emission reduction through the reduction of energy consumption using conventional sources. The text discusses the fundamentals of thermal energy and its applications in a comprehensive manner. It further covers advancements in solar thermal and photovoltaic systems. The text highlights the contribution of geothermal energy conversion systems to sustainable development. It showcases the design and optimization of ground source heat pumps for space conditioning and presents modelling and simulation of the thermal energy systems for design optimization. It will serve as an ideal reference text for senior undergraduate, graduate students and academic researchers in the fields of mechanical engineering, environmental engineering and energy engineering.
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Разместил: Ingvar16 16-05-2023, 00:51 | Комментарии: 0 | Подробнее
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Название:Basic Semiconductor Physics, 4th edition
Автор:Hamaguchi Chihiro
Издательство:Springer
Год:2023
Формат:PDF
Страниц:785
Размер: 19,3 МБ
Язык: English
This textbook presents a detailed description of basic semiconductor physics, covering a wide range of important phenomena in semiconductors, from simple to advanced. It introduces and explains four different methods of energy band calculations in the full band region and covers fundamental topics such as the effective mass approximation and electron motion in a periodic potential, the Boltzmann transport equation, and deformation potentials used for the analysis of transport properties. The text also examines experimental and theoretical analyses of cyclotron resonance in detail and reviews essential optical and transport properties, while covering optical transitions, electron–phonon interaction, and electron mobility. It presents numerical calculations of scattering rate, relaxation time, and mobility for typical semiconductors with bulk, quantum well and HEMT structures including wideband gap materials such as GaN and SiC in addition to IV and III-V semiconductors. | |
Разместил: vikCAT 15-05-2023, 21:41 | Комментарии: 0 | Подробнее
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 Название: Основы автоматики и микропроцессорной техники
Автор: Кушнер Д. А. , Дробов А. В. , Петроченко Ю. Л.
Издательство: РИПО
Год: 2019
Cтраниц: 249 с. : ил., табл., схем., граф.
Формат: pdf (ocr)
Размер: 21 мб
Язык: русский
В учебном пособии изложены основы теории автоматического управления. Особое внимание уделено замкнутым системам автоматического управления непрерывного действия, дискретным автоматам. Рассмотрены элементы систем автоматики, их классификация, характеристики и режимы работы (датчики, усилительные устройства и элементы вычислительной техники, включающие в себя элементы памяти, триггеры, регистры, счетчики, дешифраторы, шифраторы и формирователи импульсов). | |
Разместил: rivasss 15-05-2023, 07:33 | Комментарии: 0 | Подробнее
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 Название: Альтернативные энергоносители на автотранспорте: эффективность и перспективы
Автор: Падалко Л. П. , Иванов Ф. Ф. , Кузьменок В. И.
Издательство: Беларуская навука
Год: 2017
Cтраниц: 265 с. : ил.
Формат: pdf (ocr)
Размер: 19 мб
Язык: русский
В издании изучена проблема замещения бензина и дизельного топлива для автотранспорта природным газом и электроэнергией. Дана характеристика альтернативных видов энергоносителей для автотранспорта, освещен мировой и отечественный опыт их использования, разработаны методические основы расчета экономической эффективности замещения жидкого топлива электроэнергией. | |
Разместил: rivasss 15-05-2023, 07:26 | Комментарии: 0 | Подробнее
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 Название: A Beginner’s Guide to Lasers and Their Applications, Part 1: Insights into Laser Science
Автор: Dhruba J. Biswas
Издательство: Springer
Год: 2023
Страниц: 331
Язык: английский
Формат: pdf (true)
Размер: 12.7 MB
This two-volume book provides an enriching insight into the laser, covering different types of lasers, the basic science behind the technology, their role at the cutting-edge of current scientific research, and their wide-ranging applications. With just high school physics as a prerequisite and favoring qualitative yet scientifically sound explanations over high-level mathematics, this book is aimed at a broad spectrum of readers in physics, chemistry, engineering, medicine, and biology. Its engaging and lucid presentation is enhanced with plenty of illustrations, making the world of the laser accessible to undergraduate students in the sciences and any other inquisitive readers with high school physics under their belts. Furthermore, the text is often laced with anecdotes, picked from history, that are bound to pique the minds of the readers. It is ideal for self-study or as a complement to courses on optics and optoelectronics.
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Разместил: Ingvar16 15-05-2023, 05:29 | Комментарии: 0 | Подробнее
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 Название: Enhancement of Grid-Connected Photovoltaic Systems Using Artificial Intelligence
Автор: Amal M. Abd El-Hameid, Adel A. Elbaset
Издательство: Springer
Год: 2023
Страниц: 243
Язык: английский
Формат: pdf (true), epub
Размер: 33.8 MB
Enhancement of Grid-Connected Photovoltaic Systems Using Artificial Intelligence presents methods for monitoring transmission systems and enhancing distribution system performance using modern optimization techniques considering different multi-objective functions such as voltage loss sensitivity indexes, reducing total annual cost, and voltage deviation. The authors offer a comprehensive survey of distributed energy resources (DERs), explain the backward/forward sweep (BFS) power flow algorithm, and present simulation results on the optimal integration of photovoltaic-based distributed generators (PV-DG) and distribution static synchronous compensators (DSTATCOM) in different transmission and distribution systems. This book will be a valuable academic and industry resource for electrical engineers, students, and researchers working on optimization techniques, photovoltaic systems, energy engineering, and Artificial Intelligence. Distributed generation (DG) refers to a variety of technologies that generate electricity at or near where it will be used, such as solar panels and combined heat and power. Distributed generation may serve a single structure, such as a home or business, or it may be part of a microgrid (a smaller grid that is also tied into the larger electricity delivery system), such as at a major industrial facility, a military base, or a large college campus. When connected to the electric utility lower-voltage distribution lines, distributed generation can help support the delivery of clean, reliable power to additional customers and reduce electricity losses along transmission and distribution lines.
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Разместил: Ingvar16 13-05-2023, 14:40 | Комментарии: 0 | Подробнее
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Название: Молниезащита
Автор: Толмачёв В.Д., Соловьёв В.С.
Издательство: М.: МИЭЭ
Год: 2005
Формат: pdf
Страниц: 148
Размер: 32 mb
Язык: Русский
Качество: Приемлемое
Справочное пособие содержит общие сведения, включающие в себя поражающие факторы молнии и последствия её воздействия. Дан краткий сравнительный анализ российских нормативных требований к молниезащите с требованиями стандартов МЭК, VDE и DIN. Показаны возможности применения новой немецкой технологии устройства молниезащиты, комплектуемой, комплектуемой из элементов заводской готовности, обеспечивающие минимальный срок и технологичность реализации. | |
Разместил: na5ballov 13-05-2023, 12:16 | Комментарии: 0 | Подробнее
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 Название: PV and the NEC, 3rd Edition
Автор: Sean White, Bill Brooks
Издательство: Routledge
Год: 2023
Страниц: 317
Язык: английский
Формат: pdf (true)
Размер: 23.3 MB
PV and the NEC presents a straightforward explanation of the National Electrical Code (NEC) in everyday language. Used throughout the United States and many other countries, the NEC is the world’s most detailed set of electrical codes pertaining to photovoltaic (PV) systems. This new edition is based on the 2023 NEC, with most of the interpretations and material staying true long after. It interprets the distinct differences between previous versions of the NEC and the 2023 NEC and clarifies how these code changes relate specifically to PV installations. It includes Energy Storage Systems (ESS) and EV to Grid (EV2G). Written by two of the leading authorities and educators in the field, this book will be a vital resource for solar professionals, as well as anyone preparing for a solar certification exam.
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Разместил: Ingvar16 11-05-2023, 07:43 | Комментарии: 0 | Подробнее
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 Название: Электрические аппараты. Лабораторный практикум
Автор: Громыко Т. С.
Издательство: РИПО
Год: 2019
Cтраниц: 113 с. : ил., табл., схем.
Формат: pdf (ocr)
Размер: 15 мб
Язык: русский
Учебное пособие содержит рекомендации по выполнению практических и лабораторных работ по учебной дисциплине «Электрические аппараты». Выполнение практических и лабораторных работ содействует углубленному изучению учащимися учебной дисциплины, формированию практических навыков сборки электрических схем для проверки и настройки аппаратов, испытания схем, использования электроизмерительных приборов и проведения опытов, а также оформления технической документации в соответствии с требованиями нормативных документов. | |
Разместил: rivasss 11-05-2023, 07:41 | Комментарии: 0 | Подробнее
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