Jun Li – författare

Development of Ultra-High Performance Concrete against Blasts: From Materials to Structures presents a detailed overview of UHPC development and its related applications in an era of rising terrorism around the world. Chapters present case studies on the novel development of the new generation of UHPC with nano additives. Field blast test results on reinforced concrete columns made with UHPC and UHPC filled double-skin tubes columns are also presented and compiled, as is the residual load-carrying capacities of blast-damaged structural members and the exceptional performance of novel UHPC materials that illustrate its potential in protective structural design.

As a notable representative, ultra-high performance concrete (UHPC) has now been widely investigated by government agencies and universities. UHPC inherits many positive aspects of ultra-high strength concrete (UHSC) and is equipped with improved ductility as a result of fiber addition. These features make it an ideal construction material for bridge decks, storage halls, thin-wall shell structures, and other infrastructure because of its protective properties against seismic, impact and blast loads.

Advances in Machine Learning and Image Analysis for GeoAI presents recent advances in applications and algorithms that are at the intersection of Geospatial imaging and Artificial Intelligence (GeoAI). The book covers algorithmic advances in geospatial image analysis, sensor fusion across modalities, few-shot open-set recognition, explainable AI for Earth Observations, self-supervised learning, image superresolution, Visual Question Answering, and spectral unmixing, among other topics. This book offers a comprehensive resource for graduate students, researchers, and practitioners in the area of geospatial image analysis. It provides detailed descriptions of the latest techniques, best practices, and insights essential for implementing deep learning strategies in GeoAI research and applications.

PEM Water Electrolysis: Fundamentals and Practice is a comprehensive reference on the design and operation of PEM water electrolyzers. Combining hydrogen production with engineering thermophysics, the book provides a unique resource for understanding the hydrogen production process, from fundamental concepts to practical implementation. Divided into four parts, the book covers the current state of hydrogen and the fundamentals of PEM water electrolysis and the various components and materials used in PEM electrolysis, including electrocatalysts, proton exchange membranes, membrane electrode assembly, porous transport layer, flow field, and corrosion, and more.Other sections explain the key processes involved in PEM electrolysis, such as two-phase flow, heat and mass transfer and delve into systems research, covering grid fluctuations, control systems, assembly, diagnosis, and commercialization. In addition, the book provides comprehensive information on the modeling of PEM electrolyzers, including heat and mass transfer and system analysis. Finally, the book contains informative videos of industrial facilities, laboratory setups, and preparation procedures.

China has grown to become the world’s second largest economy in merely three decades and entrepreneurship has been identified as a key driver of China’s fast growth. Since the mid-2000s, the country has transitioned from a predominance of necessity-based entrepreneurship to that of an opportunity-based entrepreneurship.

The China Surveys of Global Entrepreneurship Monitor in the last fifteen years consistently indicate the country’s high rate of entrepreneurship. Furthermore, more Chinese entrepreneurs have started setting their sights on business internationalisation. Against this backdrop of a thriving entrepreneurial economy, institutions and business environment are, however, not often viewed as "friendly" to private entrepreneurs and businesses. The "re-emergence" of entrepreneurship suggests a history of struggle to overcome opposition and obstruction, to survive and grow, including "rule ambiguities", rent-seeking, subsidies, and institutional constraints, such as industrial barriers, difficulties in getting access to critical resources, and weak property rights. China has also been experiencing economic slowdown, increase in inequality and worsening environmental problems since the turn of the century, clearly indicating that the rapid development of entrepreneurship in China presents a lot of puzzling questions.

Entrepreneurship in China attempts to deal with these unanswered queries as well as provide an insightful and updated understanding of entrepreneurship development in China.

The chapters in this book were originally published as a special issue of the journal, Entrepreneurship & Regional Development.

China has grown to become the world’s second largest economy in merely three decades and entrepreneurship has been identified as a key driver of China’s fast growth. Since the mid-2000s, the country has transitioned from a predominance of necessity-based entrepreneurship to that of an opportunity-based entrepreneurship.

The China Surveys of Global Entrepreneurship Monitor in the last fifteen years consistently indicate the country’s high rate of entrepreneurship. Furthermore, more Chinese entrepreneurs have started setting their sights on business internationalisation. Against this backdrop of a thriving entrepreneurial economy, institutions and business environment are, however, not often viewed as "friendly" to private entrepreneurs and businesses. The "re-emergence" of entrepreneurship suggests a history of struggle to overcome opposition and obstruction, to survive and grow, including "rule ambiguities", rent-seeking, subsidies, and institutional constraints, such as industrial barriers, difficulties in getting access to critical resources, and weak property rights. China has also been experiencing economic slowdown, increase in inequality and worsening environmental problems since the turn of the century, clearly indicating that the rapid development of entrepreneurship in China presents a lot of puzzling questions.

Entrepreneurship in China attempts to deal with these unanswered queries as well as provide an insightful and updated understanding of entrepreneurship development in China.

The chapters in this book were originally published as a special issue of the journal, Entrepreneurship & Regional Development.

Focusing on passive intermodulation (PIM), a common instance of distortion in high-power multi-channel communication systems, the book introduces the concepts and technology of PIM.In the context of "space-ground-object" integrated communication and increasing spectrum resource constraints, the PIM problem is becoming increasingly prominent, while microwave components and system-level PIM are facing new challenges. Based on the experience and achievements in engineering practice of the China Academy of Space Technology in Xi’an, this title describes the basic theory, generation mechanism, analysis and evaluation methods, location detection and suppression techniques for microwave components of spacecraft PIM from a theoretical and engineering perspective. Furthermore, the latest achievements of microwave component PIM are outlined in depth, along with operational guidance and paths for further advancement.This book will be a useful reference for researchers, engineers and students interested in microwave technology, satellite technology and mobile communication technology.

Wanzhao Cui is a professor at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. His current research interests include microwave technology and satellite communication.

Jun Li is a professor at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. He is engaged in research on microwave technology and satellite communication.

Huan Wei is a senior engineer at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. Her expertise is in the field of space microwave technology.

Xiang Chen is a senior engineer at the National Key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. His research interests are microwave and millimeter wave technology.

Focusing on passive intermodulation (PIM), a common instance of distortion in high-power multi-channel communication systems, the book introduces the concepts and technology of PIM.In the context of "space-ground-object" integrated communication and increasing spectrum resource constraints, the PIM problem is becoming increasingly prominent, while microwave components and system-level PIM are facing new challenges. Based on the experience and achievements in engineering practice of the China Academy of Space Technology in Xi’an, this title describes the basic theory, generation mechanism, analysis and evaluation methods, location detection and suppression techniques for microwave components of spacecraft PIM from a theoretical and engineering perspective. Furthermore, the latest achievements of microwave component PIM are outlined in depth, along with operational guidance and paths for further advancement.This book will be a useful reference for researchers, engineers and students interested in microwave technology, satellite technology and mobile communication technology.

Wanzhao Cui is a professor at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. His current research interests include microwave technology and satellite communication.

Jun Li is a professor at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. He is engaged in research on microwave technology and satellite communication.

Huan Wei is a senior engineer at the National key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. Her expertise is in the field of space microwave technology.

Xiang Chen is a senior engineer at the National Key Laboratory of Science and Technology on Space Microwave, at the China Academy of Space Technology, Xi’an, China. His research interests are microwave and millimeter wave technology.

In the past three decades, China has successfully transformed itself from an extremely poor economy to the world’s second largest economy. The country’s phenomenal economic growth has been sustained primarily by its rapid and continuous industrialization. Currently industry accounts for nearly two-fifths of China’s gross domestic product, and since 2009 China has been the world’s largest exporter of manufactured products. This book explores the question of how far this industrial growth has been the product of government policies. It discusses how government policies and their priorities have developed and evolved, examines how industrial policies are linked to policies in other areas, such as trade, technology and regional development, and assesses how new policy initiatives are encouraging China’s increasing success in new technology-intensive industries. It also demonstrates how China’s industrial policies are linked to development of industrial clusters and regions.

In the past three decades, China has successfully transformed itself from an extremely poor economy to the world’s second largest economy. The country’s phenomenal economic growth has been sustained primarily by its rapid and continuous industrialization. Currently industry accounts for nearly two-fifths of China’s gross domestic product, and since 2009 China has been the world’s largest exporter of manufactured products. This book explores the question of how far this industrial growth has been the product of government policies. It discusses how government policies and their priorities have developed and evolved, examines how industrial policies are linked to policies in other areas, such as trade, technology and regional development, and assesses how new policy initiatives are encouraging China’s increasing success in new technology-intensive industries. It also demonstrates how China’s industrial policies are linked to development of industrial clusters and regions.

Although Chinese economic growth continues strong, and although China coped very well with the recent global crisis, the Chinese economy faces many challenges, including how to sustain growth, how to rebalance the economy towards more domestic consumption, how to accommodate rising wages, growing social and regional inequality, and how to reform financial and monetary policies. This book examines the key challenges currently facing the Chinese economy. It considers Chinas’ increasing global impact, discusses the institutional drivers of China’s economic growth, assesses critically China’s need for structural reform, and explores issues related to sustainability and human rights.