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![]() Free Download Modeling and Control in Solid Mechanics by A. M. Khludnev , J. Sokolowski English | PDF | 1997 | 380 Pages | ISBN : 303489855X | 28.6 MB New trends in free boundary problems and new mathematical tools together with broadening areas of applications have led to attempts at presenting the state of art of the field in a unified way. In this monograph we focus on formal models representing contact problems for elastic and elastoplastic plates and shells. New approaches open up new fields for research. For example, in crack theory a systematic treatment of mathematical modelling and optimization of problems with cracks is required. Similarly, sensitivity analysis of solutions to problems subjected to perturbations, which forms an important part of the problem solving process, is the source of many open questions. Two aspects of sensitivity analysis, namely the behaviour of solutions under deformations of the domain of integration and perturbations of surfaces seem to be particularly demanding in this context. On writing this book we aimed at providing the reader with a self-contained study of the mathematical modelling in mechanics. Much attention is given to modelling of typical constructions applied in many different areas. Plates and shallow shells which are widely used in the aerospace industry provide good exam ples. Allied optimization problems consist in finding the constructions which are of maximal strength (endurance) and satisfy some other requirements, ego weight limitations. Mathematical modelling of plates and shells always requires a reasonable compromise between two principal needs. One of them is the accuracy of the de scription of a physical phenomenon (as required by the principles of mechanics). ![]() Free Download Mobile Multimedia Communications: 14th EAI International Conference, Mobimedia 2021, Virtual Event, July 23-25, 2021, Proceedings by Jinbo Xiong English | EPUB | 2021 | 899 Pages | ISBN : 303089813X | 115.9 MB This book constitutes the thoroughly refereed post-conference proceedings of the 14th International Conference on Mobile Multimedia Communications, Mobimedia 2021, held in July 2021. Due to COVID-19 pandemic the conference was held virtually. ![]() Free Download Mixture Formation in Internal Combustion Engines by Baumgarten Carsten English | PDF | 2006 | 312 Pages | ISBN : 3540308350 | 6.7 MB A systematic control of mixture formation with modern high-pressure injection systems enables us to achieve considerable improvements of the combustion pr- ess in terms of reduced fuel consumption and engine-out raw emissions. However, because of the growing number of free parameters due to more flexible injection systems, variable valve trains, the application of different combustion concepts within different regions of the engine map, etc., the prediction of spray and m- ture formation becomes increasingly complex. For this reason, the optimization of the in-cylinder processes using 3D computational fluid dynamics (CFD) becomes increasingly important. In these CFD codes, the detailed modeling of spray and mixture formation is a prerequisite for the correct calculation of the subsequent processes like ignition, combustion and formation of emissions. Although such simulation tools can be viewed as standard tools today, the predictive quality of the sub-models is c- stantly enhanced by a more accurate and detailed modeling of the relevant pr- esses, and by the inclusion of new important mechanisms and effects that come along with the development of new injection systems and have not been cons- ered so far. In this book the most widely used mathematical models for the simulation of spray and mixture formation in 3D CFD calculations are described and discussed. In order to give the reader an introduction into the complex processes, the book starts with a description of the fundamental mechanisms and categories of fuel - jection, spray break-up, and mixture formation in internal combustion engines. ![]() Free Download Microstructure Atlas of P22 Steel by Rajat K. Roy , Anil K. Das , Avijit Kumar Metya , Avijit Mondal , Ashis Kumar Panda , M. Ghosh , Satish Chand , Sarmishtha Palit Sagar , Swapan Kumar Das , Amit Chhabra , Swaminathan Jaganathan , Amitava Mitra English | EPUB (True) | 2023 | 117 Pages | ISBN : 9819901162 | 146.5 MB This book highlights the qualitative and quantitative sequential changes in microstructure of P22 steel under various stress and temperature conditions. The P22 alloy is an established material used under elevated temperature and stress for the components of thermal power plants. Temperature and stress levels for laboratory experimentation have been selected based on the true operating condition of a boiler. This book describes both continuous as well as interrupted tests that were performed under given parameters. Subsequently, the microstructures, bulk hardness and NDE parameters (magnetic and non-linear ultrasonic) have been evaluated. For reliable data, the microstructures have been observed at different regions of creep exposed samples by different characterization techniques. This has been further followed by drawing correlation between specific features like precipitate size variation with creep strain / creep time and so on. Given the contents, this book will be a useful reference for researchers and professionals working in the area of materials especially in thermal power plants. ![]() Free Download Micromechanics of Defects in Solids by Toshio Mura English | PDF | 1987 | 601 Pages | ISBN : 9024732565 | 33.7 MB This book stems from a course on Micromechanics that I started about fifteen years ago at Northwestern University. At that time, micromechanics was a rather unfamiliar subject. Although I repeated the course every year, I was never convinced that my notes have quite developed into a final manuscript because new topics emerged constantly requiring revisions, and additions. I finally came to realize that if this is continued, then I will never complete the book to my total satisfaction. Meanwhile, T. Mori and I had coauthored a book in Japanese, entitled Micromechanics, published by Baifu-kan, Tokyo, in 1975. It received an extremely favorable response from students and re searchers in Japan. This encouraged me to go ahead and publish my course notes in their latest version, as this book, which contains further development of the subject and is more comprehensive than the one published in Japanese. Micromechanics encompasses mechanics related to microstructures of materials. The method employed is a continuum theory of elasticity yet its applications cover a broad area relating to the mechanical behavior of materi als: plasticity, fracture and fatigue, constitutive equations, composite materi als, polycrystals, etc. These subjects are treated in this book by means of a powerful and unified method which is called the 'eigenstrain method. ' In particular, problems relating to inclusions and dislocations are most effectively analyzed by this method, and therefore, special emphasis is placed on these topics. ![]() Free Download Metaheuristics in Machine Learning: Theory and Applications by Diego Oliva English | EPUB | 2021 | 765 Pages | ISBN : 3030705412 | 110.7 MB This book is a collection of the most recent approaches that combine metaheuristics and machine learning. Some of the methods considered in this book are evolutionary, swarm, machine learning, and deep learning. The chapters were classified based on the content; then, the sections are thematic. Different applications and implementations are included; in this sense, the book provides theory and practical content with novel machine learning and metaheuristic algorithms.The chapters were compiled using a scientific perspective. Accordingly, the book is primarily intended for undergraduate and postgraduate students of Science, Engineering, and Computational Mathematics and is useful in courses on Artificial Intelligence, Advanced Machine Learning, among others. Likewise, the book is useful for research from the evolutionary computation, artificial intelligence, and image processing communities. ![]() Free Download Medical Imaging and Computer-Aided Diagnosis: Proceedings of 2022 International Conference on Medical Imaging and Computer-Aided Diagnosis (MICAD 2022) by Ruidan Su, Yudong Zhang, Han Liu, Alejandro F Frangi English | PDF EPUB (True) | 2023 | 567 Pages | ISBN : 9811667748 | 113.3 MB This book covers virtually all aspects of image formation in medical imaging, including systems based on ionizing radiation (x-rays, gamma rays) and non-ionizing techniques (ultrasound, optical, thermal, magnetic resonance, and magnetic particle imaging) alike. In addition, it discusses the development and application of computer-aided detection and diagnosis (CAD) systems in medical imaging. ![]() Free Download Medical Image Computing and Computer Assisted Intervention - MICCAI 2021: 24th International Conference, Strasbourg, France, September 27 - October 1, 2021, Proceedings, Part V by Marleen de Bruijne English | PDF EPUB | 2021 | 872 Pages | ISBN : 3030872394 | 228.3 MB The eight-volume set LNCS 12901, 12902, 12903, 12904, 12905, 12906, 12907, and 12908 constitutes the refereed proceedings of the 24th International Conference on Medical Image Computing and Computer-Assisted Intervention, MICCAI 2021, held in Strasbourg, France, in September/October 2021.* ![]() Free Download Materials and Electro-mechanical and Biomedical Devices Based on Nanofibers by Alexander L. Yarin , Filippo Pierini , Eyal Zussman , Marco Lauricella English | EPUB (True) | 2024 | 344 Pages | ISBN : 303148438X | 141.6 MB The book is interwoven according to the intrinsic logics of modern most important applications of electrospun nanofibers. It discusses such application-oriented nanofibers as self-healing vascular nanotextured materials, biopolymer nanofibers, soft robots and actuators based on nanofibers, biopolymer nanofiber-based triboelectric nanogenerators, metallized nanofibers, and heaters and sensors based on them. It also includes such topics as the injectable nanofibrous biomaterials, fibrous hemostatic agents and their interaction with blood, as well as electrospun nanofibers for face-mask applications. The book also details polyelectrolytes-based complex nanofibers and their use as actuators. It also covers drug release facilitated by polyelectrolytes-based complex nanofibers. ![]() Free Download Material and Digital A/r/tographic Explorations: Walking Matters by Nicole Y.S. Lee, Marzieh Mosavarzadeh, Joanne M. Ursino, Rita L. Irwin English | EPUB (True) | 2024 | 401 Pages | ISBN : 9819953731 | 102 MB This book considers the generative tension between the materiality and virtuality of walking methodologies in a/r/tography and arts-based educational research. It explores the materiality of practice-manifestations, manipulations, residues, and traces of both real and imagined experiences and events. Authors present artistic representations, renderings, artifacts, and documentations that allow for various forms of return and re-visitation of places/spaces and temporal moments. The book also investigates the digital and virtual, including video, images, media work, and emergent technologies that allow one to literally, metaphorically, affectively, and conceptually go somewhere that might be previously impossible to reach. Authors consider curricular and pedagogical implications of digital/virtual walking in relation to desire, agency, autonomy, freedom, and other issues around ethics. |