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This book analyzes stochastic processes on networks and regular structures such as lattices by employing the Markovian random walk approach. Part 1 is devoted to the study of local and non-local random walks. It shows how non-local random walk strategies can be defined by functions of the Laplacian matrix that maintain the stochasticity of the transition probabilities. A major result is that only two types of functions are admissible: type (i) functions generate asymptotically local walks with the emergence of Brownian motion, whereas type (ii) functions generate asymptotically scale-free non-local “fractional” walks with the emergence of Lévy flights. In Part 2, fractional dynamics and Lévy flight behavior are analyzed thoroughly, and a generalization of Pólya's classical recurrence theorem is developed for fractional walks. The authors analyze primary fractional walk characteristics such as the mean occupation time, the mean first passage time, the fractal scaling of the set of distinct nodes visited, etc. The results show the improved search capacities of fractional dynamics on networks.
The Ethics of Artificial Intelligence discusses the need for ethics accompanying developments in artificial intelligence, from the point of view of different disciplinary fields and sectors of activity. Artificial intelligence is profoundly restructuring our practices, creating new methods and significantly influencing the way we think and interact, at the level of individuals, organizations and societies, whether in our private, public or professional lives. This book begins with a rather conceptual approach, particularly focusing on the possible future of AI. It then highlights the urgent need to establish an ethical framework for the uses associated with AI, illustrating two booming sectors of activity. Finally, it discusses the ethics of AI in professional sectors that are undergoing major changes because of the digitization of their activities.
This book reports on innovative materials research with a special emphasis on methods, modeling, and simulation tools for analyzing material behavior, emerging materials, and composites, and their applications in manufacturing and automotive, among others. It gathers the proceedings of the fourth International Conference on Advanced Materials Mechanics and Manufacturing, A3M2023, held on March 20-21, 2023, in Sousse, Tunisia, and organized by the Laboratory of Mechanics, Modeling, and Manufacturing (LA2MP) of the National School of Engineers of Sfax. The book covers findings from experimental analyses and numerical simulations of material behavior, characterization of new materials, structures and composites, optimization methods and Artifical Intelligence applications. Offering a good balance of fundamental research and practice-oriented findings, it provides researchers and professionals with a timely snapshot of engineering methods in mechanics, materials and manufacturing.
This book reports on innovative concepts and practical solutions at the intersection between engineering design, applied mechanics, and production engineering. It covers cutting-edge design, modeling, and control of dynamic and multiphysics systems, advances in material engineering, and the assessment of additive manufacturing processes and products. It highlights topics relating to energy efficiency and sustainable development, and reports on applications of artificial intelligence in manufacturing. Gathering the proceedings of the 13th International Conference on Integrated Design and Production (CPI 2024), held on December 14-16, 2024, in Monastir, Tunisia, this book continues the tradition of the previous editions, providing a valuable resource for both academics and professionals dealing with diverse issues in applied mechanics. By combining advanced theories with industrial issues, it is also expected to facilitate communication and collaboration between different groups of researchers and technology users.
Heat Exchanger Technologies for Sustainable Renewable Energy Systems serves as a comprehensive resource on the cutting-edge advancements and applications of heat exchanger technologies in the realm of renewable energy. This book delves into the fundamental principles, design methodologies, and operational strategies for optimizing heat exchange processes in various sustainable energy systems. Covering a wide range of topics, the book explores innovative heat exchanger designs, materials, and configurations that enhance thermal performance and efficiency. It examines the integration of heat exchangers in solar thermal systems, geothermal applications, and biomass energy systems, providing ins...
Quelques phénomènes complexes en mécanique des fluides et des solides explore et approfondit des thématiques de recherche auxquelles le professeur et chercheur Abdelhak Ambari a apporté de précieuses contributions expérimentales et théoriques. Ces sujets incluent la rhéologie des fluides complexes et des polymères, les interactions hydrodynamiques, les écoulements aux faibles nombres de Reynolds, la caractérisation des milieux poreux, les instabilités hydrodynamiques et en mécanique des solides et enfin, la métrologie par méthodes électrochimiques. Cet ouvrage s’adresse à une large communauté de lecteurs désireux d’approfondir ces thématiques scientifiques. Il sera un outil précieux pour les étudiants en doctorat et les chercheurs. Il apportera également aux étudiants de licence et master une bonne introduction aux techniques et aux approches développées en recherche fondamentale et appliquée dans le domaine de la mécanique des fluides, des solides et de l’instrumentation.
Artificial Intelligence (AI) is currently one of the most talked-about technologies, both among scientists and in public media. Several factors have contributed to its development in recent years. The first is access to vast quantities of data, such as in the industrial field, the advent of Industry 4.0, which promotes automation and data sharing in several technologies. Another factor is the continuous improvement in computing power thanks to the development of ever more powerful processors and the optimization of algorithms. With these two limitations removed, the focus of most AI developments is on the quality of predictions. The integration of AI into the industrial domain represents an ...
Proceedings of SPIE present the original research papers presented at SPIE conferences and other high-quality conferences in the broad-ranging fields of optics and photonics. These books provide prompt access to the latest innovations in research and technology in their respective fields. Proceedings of SPIE are among the most cited references in patent literature.
The final volume in the Non-deformable Solid Mechanics set, Movement Equations 5 deals with the dynamics of sets of solids. This volume provides the appropriate mathematical tools (torsor calculus and matrix calculus) to obtain and solve the equations of motion for a chain of solids. These equations are then used to acquire the information necessary for the design of mechanical systems. Also examined are the vibratory behavior of continuous (deformable) systems, rigid and deformable solids, and sets of several solids. The book concludes with a study of the response of an excited system as a function of the excitation frequency. Accompanied by detailed examples, this book is aimed primarily at students, but would also serve as a valuable support for working engineers and teacher-researchers.