Xiao Li

This open access book serves as a comprehensive exploration of Alternating Current Field Measurement (ACFM), encompassing the foundational theory crucial for subsequent chapters, as well as the design and testing of ACFM probes, instruments, and software. Providing guidance and serving as a reference for ACFM instrument development, the text delves into visualization research in ACFM, offering valuable insights for technical engineering applications. Nondestructive testing (NDT) emerges as a pivotal method for detecting and assessing defects, offering support for safety pre-warning and maintenance decisions in industrial structures. Originating from the 1980s, the demand for an NDT technique arose to inspect fatigue cracks at welded intersections in offshore underwater structures in the North Sea. Conventional NDT methods proved impractical in this distinct underwater environment with quantitative evaluation requirements, prompting the development of the ACFM technique by researchers in the mechanical engineering department at University College London. Over the past four decades, ACFM's theory model, inspection methods, and equipment have undergone rapid advancements, gaining widespread utilization in ocean engineering, the power industry, rail traffic, and special equipment fields. This book encompasses diverse facets, including the global development history of alternating current field measurement technology, core basic theory, signal processing methods, probe instrument development, standardization construction, and engineering applications. Serving as a valuable learning reference for students and offering fundamental theoretical guidance for scientific researchers, it also provides case introductions for engineering applications. The book aims to propel both theoretical research and practical applications of alternating current field measurement technology, contributing significantly to its popularization and widespread application.

This open access book can be divided into three parts. In part 1, three articles are employed to introduce the RACFM technology. In part 2, two articles are introduced to explain the Multifrequency ACFM. In part 3, three articles are introduced to explain the visualization research in ACFM. With the development of ACFM detection technology, traditional single excitation frequency and single direction excitation structures cannot meet the requirements of multiple types of defect detection (such as cracks at different angles, and buried defects). New types of excitation structures and methods have been proposed, mainly including rotating electromagnetic field detection, multi-frequency detection, and defects visual algorithm. The changes in the excitation structure and signal mentioned above have expanded the scope of application of ACFM detection and provided opportunities for the cross-integration and innovation of ACFM detection technology with other advanced detection methods. This book mainly focuses on the study of the rotating alternating current field measurement (RACFM), the multifrequency ACFM, and the visualization method in ACFM.

Industrialized Construction in the Age of AI and Robotics explores the transformative convergence of artificial intelligence, robotics, and modern construction methods. This comprehensive textbook reveals how cutting-edge technologies are reshaping the construction industry, offering unprecedented improvements in efficiency, quality, and sustainability. From fundamental concepts to practical applications, the book is divided into three sections. Part One establishes the foundational principles of industrialized construction and introduces the revolutionary potential of AI and robotics. Part Two delves deep into six critical operational areas: AI-driven design systems, agile production processes, intelligent supply chain management, automated on-site assembly, predictive maintenance, and smart work packaging. The final section examines current challenges, from technical and financial constraints to regulatory considerations, before exploring emerging trends and future innovations. Each chapter features detailed case studies and practical examples that bridge theory and real-world implementation. Written for a diverse audience, this essential resource serves as both an academic textbook and a professional reference. Students in Civil Engineering, Industrial Engineering, Construction Engineering and Management, and AI & Robotics programs will find it invaluable for understanding the intersection of these disciplines. Industry practitioners, including construction managers, project engineers, and technology integrators, will gain practical insights into implementing AI and robotics solutions. Whether you’re preparing for a career in modern construction, leading technological transformation in your organization, or conducting advanced research in the field, this book provides the interdisciplinary knowledge needed to succeed in construction’s AI-driven future.

Industrialized Construction in the Age of AI and Robotics explores the transformative convergence of artificial intelligence, robotics, and modern construction methods. This comprehensive textbook reveals how cutting-edge technologies are reshaping the construction industry, offering unprecedented improvements in efficiency, quality, and sustainability. From fundamental concepts to practical applications, the book is divided into three sections. Part One establishes the foundational principles of industrialized construction and introduces the revolutionary potential of AI and robotics. Part Two delves deep into six critical operational areas: AI-driven design systems, agile production processes, intelligent supply chain management, automated on-site assembly, predictive maintenance, and smart work packaging. The final section examines current challenges, from technical and financial constraints to regulatory considerations, before exploring emerging trends and future innovations. Each chapter features detailed case studies and practical examples that bridge theory and real-world implementation. Written for a diverse audience, this essential resource serves as both an academic textbook and a professional reference. Students in Civil Engineering, Industrial Engineering, Construction Engineering and Management, and AI & Robotics programs will find it invaluable for understanding the intersection of these disciplines. Industry practitioners, including construction managers, project engineers, and technology integrators, will gain practical insights into implementing AI and robotics solutions. Whether you’re preparing for a career in modern construction, leading technological transformation in your organization, or conducting advanced research in the field, this book provides the interdisciplinary knowledge needed to succeed in construction’s AI-driven future.

Technical resource presenting the latest power conversion solutions to advance the role of AC-AC power electronics in various applications. Compiling state-of-the-art research from around the world, Impedance Source Matrix Converters and Control provides a rich diversity of scientific work experience and scholarly approaches on the fundamentals and advances of power electronic converters for motor drives, renewable energies, and industry applications. The reader will be able to apply the learnt design approaches in this book for building and researching the future generation of efficient power electronic converters: more efficient, more reliable, less expensive, lighter, and less voluminous. The text introduces impedance source matrix converters in four distinct parts, covering the basics, converter topology, control, and applications. Its main focus is on the detailed understanding of advanced concepts related to fundamentals of impedance source matrix converters, and provides associated models, analysis, modulation, and final design and optimization control. Additional tables, questions/answers, tutorials, PowerPoint presentations, and selected simulation and experimental results are discussed in order to impart seamless reader comprehension. Written by four highly qualified academics with significant experience in the field, Impedance Source Matrix Converters and Control covers sample topics such as: Operating principles and modulation methods for impedance source direct/indirect matrix converters and 3-1-phase matrix convertersOptimum operation control of LC filter integrated impedance source indirect matrix converters and comparison and control strategies of typical impedance source matrix convertersDesign and improvement in the electricity supply’s reliability, efficiency, compact volume, power quality, and sustainabilityChallenges and key technologies within the field of impedance source matrix converters, and solutions and directions for further research and applicationsImpedance Source Matrix Converters and Control is an essential resource on the latest developments in the field for researchers, postgraduate students, and graduate students studying power electronics and renewable energy conversion. The text is also a useful reference for R&D engineers involved with the development of power converters/inverters.

This book proposes that the short-term goal of the current reform of the international monetary system should be a combination of controlling 'imbalances' and 'the risk of the dollar', namely using the balance of payments coordination mechanism to suppress risks by exchange rate cooperation. The reforms of international reserve currencies, international financial institutions, and international financial regulation provide a good external environment for the stable development of the world economy. The book discusses the mechanisms that will continue to support the hegemony of the US dollar and the US dollar system in the future, including the commodity dollar return mechanism, the international debt repayment mechanism, the petroleum dollar pricing mechanism and the dollar rescue mechanism in financial crisis. The book predicts that the current international currency system dominated by the US dollar will remain sustainable for a long time. Finally, the book proposes four strategies for China's participation in the reform of the international monetary system.

This thesis reports on innovations in the design and direct synthesis of graphene-based woven fabric (GWF) and multi-layer graphene/porous carbon woven fabric films (MLG/PC) by means of chemical vapor deposition (CVD), using woven copper mesh and nickel mesh as the template. Further, it presents the successful applications of these materials as a platform for solar cells, super capacitors and sensors, making it especially of interest to researchers and graduate students in the fields of materials sciences, nanotechnology and renewable energy.

This thesis reports on innovations in the design and direct synthesis of graphene-based woven fabric (GWF) and multi-layer graphene/porous carbon woven fabric films (MLG/PC) by means of chemical vapor deposition (CVD), using woven copper mesh and nickel mesh as the template. Further, it presents the successful applications of these materials as a platform for solar cells, super capacitors and sensors, making it especially of interest to researchers and graduate students in the fields of materials sciences, nanotechnology and renewable energy.