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  • Добавил: literator
  • Дата: Вчера, 20:22
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Computational Design and Digital ManufacturingНазвание: Computational Design and Digital Manufacturing
Автор: Panagiotis Kyratsis, Athanasios Manavis, J. Paulo Davim
Издательство: Springer
Серия: Management and Industrial Engineering
Год: 2023
Страниц: 266
Язык: английский
Формат: pdf (true)
Размер: 10.17 MB

This book presents the latest advances in computational and parametric design engineering, as well as digital tools related to manufacturing. It covers design and manufacturing process such as CAD-based design/manufacturing, parametric design, algorithmic design and process automation, and several digital tools and applications. The continuous development of the graphical design environment allows returning to the graphical or grapho-analytical approach for the surface’s enwrapping problems, using capabilities offered by AutoCAD, CATIA, Solid Edge or other graphical design programs. In the present chapter, the method of “virtual pole” is presented and a program for profiling the generating tool was developed for the first time. The programs were written in Visual Basic for Applications (VBA), which allows profiling of tools like: rack-gear tool, gear shaped cutting tool or rotary cutter.
  • Добавил: polyanskiy
  • Дата: Вчера, 14:50
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Автор: Хармут X. Ф.
Название: Несинусоидальные волны в радиолокации и радиосвязи
Издательство: М:, Радио и связь
Год: 1985
Страниц: 376
Формат: DJVU, PDF
Размер: 18 МБ
В книге американского автора исследованы вопросы использования радиосигналов, отличающихся от синусоидальных. Приведен обзор существующих радиолокационных станций, в которых используются несинусоидальные волны, намечены области применения несинусоидальных сигналов в радиолокации и радиосвязи, показаны преимущества новых систем, описаны исследования в области несинусоидальных волн, ведущиеся в разных странах. Для инженерно-технических работников, занимающихся радиолокацией и радиосвязью.
  • Добавил: literator
  • Дата: 5-02-2023, 07:44
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Deployable Multimodal Machine Intelligence: Applications in Biomedical EngineeringНазвание: Deployable Multimodal Machine Intelligence: Applications in Biomedical Engineering
Автор: Hongliang Ren
Издательство: Springer
Год: 2023
Страниц: 589
Язык: английский
Формат: pdf (true)
Размер: 23.5 MB

This book highlights the principles, design and characterization of mechanically compliant soft and foldable robots. Traditional rigid robots with bulky footprints and complicated components prolong the design iteration and optimization for keyhole and minimally invasive transluminal applications. Therefore, there is an interest in developing soft and foldable robots with remote actuation, multimodal sensing and machine intelligence. This book discusses the use of foldable and cuttable structures to design biomimetic deployable soft robots, that can exhibit a fair number of motions with consistency and repeatability. It presents the overall design principles, methodology, instrumentation, metamorphic sensing, multi-modal perception, and machine intelligence for creating untethered foldable active structures. These robotic structures can generate a variety of motions such as wave induction, compression, inchworm, peristalsis, flipping, tumbling, walking, swimming, flexion/extension etc. Remote actuation can control motions along regular and irregular surfaces from proximal sides. For self-deployable medical robots, motion diversity and shape reconfiguration are crucial factors. Deployable robots, with the use of malleable and resilient smart actuators, hold this crucial advantage over their conventional rigid robot counterparts.
  • Добавил: polyanskiy
  • Дата: 4-02-2023, 12:22
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Автор: Кугушев А.М., Голубева Н.С., Митрохин В.Н.
Название: Основы радиоэлектроники: Электродинамика и распространение радиоволн
Издательство: М:, МГТУ им. Н.Э.Баумана
Год: 2001
Страниц: 367
Формат: PDF
Размер: 14 МБ
Изложены основы теории линейных и нелинейных электромагнитных процессов в пассивных и активных средах. Рассмотрено взаимодействие электромагнитного поля с электронным потоком, диэлектрической, магнитной и плазменной средами, вопросы преобразования частот,усиления и генерирования. Приведена теория волноводов, в том числе сложных конфигураций и резонаторов.
  • Добавил: literator
  • Дата: 4-02-2023, 03:31
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Optimization Methods for Engineering ProblemsНазвание: Optimization Methods for Engineering Problems
Автор: Dilbagh Panchal, Prasenjit Chatterjee, Mohit Tyag
Издательство: CRC Press/Apple Academic Press
Год: 2023
Страниц: 393
Язык: английский
Формат: pdf (true)
Размер: 27.9 MB

This new volume offers a variety of perspectives from investigators, industry professionals, stakeholders, and economic strategists that look at new ways of solving optimization problems related to different industrial sectors. Case studies relay how optimization methods deal with both real operative conditions in process industries and in service industries. The volume also explores emerging research areas toward the implementation of optimization algorithms for enhancement of system performance as well as system effectiveness. The book explores the role of optimization methods in engineering applications in industrial and mechanical engineering as well as in the fields of healthcare/medicine, food production, oil, textiles, energy, and agriculture. The volume offers new ways of solving optimization problems related to different industrial sectors, incorporating mathematical formulation for particular design problems and thus aiding the selection of the optimal design among many alternatives. It shows optimization methods that deal with actual operative conditions both in process and in service industries.
  • Добавил: literator
  • Дата: 3-02-2023, 04:44
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Simulating Speckle With MathematicaНазвание: Simulating Speckle With Mathematica
Автор: Joseph W. Goodman
Издательство: Society of Photo-Optical Instrumentation Engineers (SPIE)
Год: 2022
Страниц: 104
Язык: английский
Формат: pdf (true)
Размер: 71.3 MB

The speckle phenomenon is ubiquitous, occurring in all regions of the electromagnetic spectrum, as well as in both ultrasound and synthetic-aperture-radar imaging. Speckle occurs whenever radiation is reflected from a surface that is rough on the scale of a wavelength, or is passed through a diffusing surface that introduces random path-length delays on the scale of a wavelength. This book is devoted to simulation of speckle phenomena using the software package Mathematica®. Various techniques for simulating speckle are discussed. Simulation topics include first-order amplitude and intensity statistics, speckle phenomena in both imaging and free-space propagation, speckle at low light levels, polarization speckle, phase vortices in speckle, and speckle metrology methods. This book has been written entirely in Mathematica. It can be read with the full program Mathematica or with the free program Wolfram Player available for download from the Wolfram site.
  • Добавил: literator
  • Дата: 2-02-2023, 22:11
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Ultrashort Pulse Lasers and Ultrafast PhenomenaНазвание: Ultrashort Pulse Lasers and Ultrafast Phenomena
Автор: Takayoshi Kobayashi
Издательство: CRC Press
Год: 2023
Страниц: 788
Язык: английский
Формат: pdf (true)
Размер: 47.5 MB

This book describes the basic physical principles of techniques to generate and ultrashort pulse lasers and applications to ultrafast spectroscopy of various materials covering chemical molecular compounds, solid-state materials, exotic novel materials including topological materials, biological molecules and bio- and synthetic polymers. It introduces non-linear optics which provides the basics of generation and measurement of pulses and application examples of ultrafast spectroscopy to solid state physics. Also it provide not only material properties but also material processing procedures. The book describes also details of the world shortest visible laser and DUV lasers developed by the author’s group. It is composed of the following 12 Sections: The special features of this book is that it is written by a single author with a few collaborators in a systematic way. Hence it provides a comprehensive and systematic description of the research field of ultrashort pulse lasers and ultrafast spectroscopy.
  • Добавил: literator
  • Дата: 2-02-2023, 21:00
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The Science of Electric Vehicles: Concepts and ApplicationsНазвание: The Science of Electric Vehicles: Concepts and Applications
Автор: Frank R. Spellman
Издательство: CRC Press
Год: 2023
Страниц: 233
Язык: английский
Формат: pdf (true)
Размер: 10.1 MB

The Science of Electric Vehicles: Concepts and Applications presents the basic electrical principles, physics, chemistry, use of rare earth elements (REEs), batteries, charging, and operation of motor controllers of EVs. In addition to the general concepts, the book examines the policies and economics pertinent to the move from hydrocarbon power to electric-powered vehicles. It covers the history and development of electric vehicles as well as the science and engineering behind them. The Science of Electric Vehicles is designed to reach a wide range of practitioners and students and also to provide a basic handbook or reference for technicians, and those in other industries such as electric vehicle production and maintenance.
  • Добавил: literator
  • Дата: 2-02-2023, 04:57
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Lecture Notes in Rotorcraft EngineeringНазвание: Lecture Notes in Rotorcraft Engineering
Автор: Antonio Filippone, George Barakos
Издательство: Springer
Серия: Springer Aerospace Technology
Год: 2023
Страниц: 255
Язык: английский
Формат: pdf (true)
Размер: 10.2 MB

This textbook is a multi-disciplinary compendium that includes several aspects of rotorcraft technology. It introduces the reader to the aerodynamic aspects of rotary wings and presents experimental techniques for aerodynamics. The chapters also cover rotorcraft engines and rotorcraft steady-state flight performance and stability. It explores several aspects of the tiltrotor configuration and lists challenges in their design, modelling and simulation. The reader will also find an introductory overview of flight control systems for rotorcraft, as well as the conceptual and preliminary design concepts for a conventional helicopter. This textbook contains video recordings of computer simulations that can be used alongside the main text.
  • Добавил: literator
  • Дата: 2-02-2023, 04:24
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The Digital Age in AgricultureНазвание: The Digital Age in Agriculture
Автор: Mehmet Metin Ozguven
Издательство: CRC Press
Год: 2023
Страниц: 307
Язык: английский
Формат: pdf (true)
Размер: 109.4 MB

The Digital Age in Agriculture presents information related to the digital age in the agriculture sector. Agriculture is an essential activity for the continuity of life, yet is very labor-intensive and faces a wide variety of challenges. In the struggle against these difficulties, the superior features offered by technology provide important benefits. These technologies require expertise in various technical disciplines, and The Digital Age in Agriculture provides information to readers allowing them to make more informed decisions and giving them the opportunity to improve agricultural productivity. Written by Mehmet Metin Ozguven, an expert who has conducted field studies and with a working technical knowledge of various topics pertaining to the agriculture age, this book covers many subjects important to the age of digital agriculture, including precision agriculture and livestock farming, using agricultural robots and unmanned arial vehicles in agriculture practices, and image processing and machine vision.