Название: Agents, Networks, Evolution: A Quarter Century of Advances in Complex Systems
Автор: Frank Schweitzer
Издательство: World Scientific Publishing
Год: 2023
Страниц: 612
Язык: английский
Формат: pdf (true)
Размер: 32.0 MB

Scientific progress during the last three decades has greatly profited from our advances in understanding complex systems. Fundamental modeling approaches were considerably improved, particularly agent-based modeling, network science, nonlinear dynamics, and system science. At the same time, these approaches have been applied to and adopted by various scientific disciplines, ranging from physics and chemistry to engineering, molecular biology, economics, and the social sciences. This book reflects the success of complexity science both from a historical and a modeling perspective. It uses 25 articles from different disciplines, published over 25 years, to demonstrate the power and problems of modeling complex systems. The book's four parts, Agent-based Models, Network Models, Models of System Dynamics, and Models of Evolution, each provide an informative synopsis of the respective modeling approach.

Автор: Б. Р. Левин
Название: Теоретические основы статистической радиотехники. В трех книгах
Издательство: М:, Советское радио
Год: 1968-1989
Страниц: Около 500 в каждой
Формат: DJVU, PDF
Размер: 98 МБ
Книга по теоретическим основам статистической радиотехники посвящена вопросам оптимального статистического синтеза. Она содержит минимально необходимые сведения из теории решений и теории оценок параметров распределений случайных величин. Подробно освещаются основные положения статистики случайных процессов (ортогональные разложения, функционалы правдоподобия, проверка гипотез, оценки параметров, корреляционных функций и энергетических спектров)...

Название: Engineering Mechanics 2: Strength of Materials: An introduction with many examples
Автор: Christian Mittelstedt
Издательство: Springer
Год: 2023
Страниц: 328
Язык: английский
Формат: pdf (true), epub
Размер: 23.5 MB

This book follows the classical division of engineering mechanics as taught at universities in Germany and is devoted to strength of materials, i.e. the determination of stresses and of deformations in elastic bodies. The aim of this book is to provide students with a clear introduction and to enable them to formulate and solve engineering problems in this field. For this purpose, the book provides a number of examples. In a solid (a so-called continuum) under load, a stress state will develop. Due to the load, deformations occur in the solid, thus displacements of the individual body points occur. Displacements are accompanied by strains, the so-called strain state is formed. For a three″ =dimensional body, the above quantities – displacements, strains, stresses – are described by the following set of equations under a given load and prescribed boundary conditions.

Название: 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.

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.

Название: 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.

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.

Название: 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.

Название: 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.

Название: 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.