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12 produits trouvés
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This book focuses on the behavior and impact of trace metals in the environment by studying typical cases from China such as the Hetao Area of the Yellow River, Shanghai, and Nanjing. Based on samples and experiments on the behavior of pollutants, it systematically discusses the regulation of trace metals' distribution, accumulation, and migration, associated with the cause of formation demonstration. The author subsequently uses the acquired data to review the evolving trend of trace metal behaviors in natural systems (river or lake water, sediments, and soils), develops suggestions for the prevention of their negative effects, and devise treatments. Moreover, he proposes solutions to difficult research issues such as trace metal speciation extraction, and an analysis, along with operational procedures. Given its scope, the book will provide a valuable guide for researchers and engineers in relevant disciplines of the environmental sciences and engineering, and for environmental policymakers to consult in practices.
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This book answers the question of how to design a sharing system that can promote sustained, meaningful, and socially constructive sharing practices in today's cities. To do so, it constructs a framework for practical inquiry into the design of sharing systems. Further, the book invites readers to consider questions such as: If sharing can be designed, then how does one design a sharing system for cities? Which urban conditions make this sharing system possible? What are the considerations, variables, and methods that can inform and guide the designers of a sharing system? By considering both the environmental and societal motivations for sharing, and the reality that most examples of the Sharing Economy are neither equitable in their socio-economic outcomes nor genuine in their original social promises, this book presents balanced and thoughtful answers to the questions posed above. The book will appeal to a broad readership, from students and teachers in the various design disciplines, to professionals and scholars in architecture and urbanism, business and innovation, and other related fields of the humanities and social sciences, as well as activists and policymakers committed to achieving more sustainable and equitably distributed access to urban resources.
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ICT in Education and Implications for the Belt and Road Initiative
Chee-Kit Looi, Hui Zhang, Yuan Gao, Longkai Wu
- Springer
- 21 Octobre 2020
- 9789811561573
With increasing global challenges, the Belt and Road initiative seems to offer one possible platform to think about different possibilities and pathways to promote international collaboration and development covering Asia, Europe, Africa, and other countries. Information and Communication Technology (ICT) in education, as a key focus, provides valuable perspectives for governments, inter-governmental and non-governmental agencies wanting to innovate and advance both ICT and education independently and collaboratively. This book highlights the burgeoning of ICT in education in eleven countries, with particular emphasis placed on the context of the Belt and Road Initiative. ICT has increasingly important roles in education including improve teaching and learning qualities, as well as equity in education. The prominent contributors describe the state-of-the-art of ICT in education in eleven countries based on six major themes (policy perspectives, infrastructure, educational resources, ICT integration into practices, students' ICT competence, and teachers' professional development). We hope the in-depth discussions included in this book would provoke more academic and policy insights globally.
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Deep Ultraviolet LEDs
Zi-Hui Zhang, Chunshuang Chu, Kangkai Tian, Yonghui Zhang
- Springer
- 4 Février 2019
- 9789811361791
This book highlights the origin of low external quantum efficiency for deep ultraviolet light-emitting diodes (DUV LEDs). In addition, it puts forward solutions for increasing the internal quantum efficiency and the light extraction efficiency of DUV LEDs. The book chiefly concentrates on approaches that can be used to improve the crystalline quality, increase carrier injection, reduce the polarization-induced electric field within multiple quantum wells, suppress the TM polarization emission, and enhance the light escape from the semiconductor layer. It also demonstrates insightful device physics for DUV LEDs, which will greatly benefit the optoelectronic community.
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Dynamics of Magnetically Trapped Particles
Juan G. Roederer, Hui Zhang
- Springer
- 13 Décembre 2013
- 9783642415302
This book is a new edition of Roederer's classic Dynamics of Geomagnetically Trapped Radiation, updated and considerably expanded. The main objective is to describe the dynamic properties of magnetically trapped particles in planetary radiation belts and plasmas and explain the physical processes involved from the theoretical point of view. The approach is to examine in detail the orbital and adiabatic motion of individual particles in typical configurations of magnetic and electric fields in the magnetosphere and, from there, derive basic features of the particles' collective "macroscopic" behavior in general planetary environments. Emphasis is not on the "what" but on the "why" of particle phenomena in near-earth space, providing a solid and clear understanding of the principal basic physical mechanisms and dynamic processes involved. The book will also serve as an introduction to general space plasma physics, with abundant basic examples to illustrate and explain the physical origin of different types of plasma current systems and their self-organizing character via the magnetic field. The ultimate aim is to help both graduate students and interested scientists to successfully face the theoretical and experimental challenges lying ahead in space physics in view of recent and upcoming satellite missions and an expected wealth of data on radiation belts and plasmas.
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Regional Mutual Benefit and Win-win Under the Double Circulation of Global Value
Liu Wei, Hui Zhang
- Springer
- 29 Juin 2019
- 9789811376566
The book offers an in-depth research of the economic situations along the Belt and Road and the initiative's cooperation prospects, opportunities and challenges. It draws on economic data, including those on trade, investment, infrastructure, urban distribution, industrial cooperation, financial integration and revision of historical and political background. The Belt and Road initiative (BRI) comes from not only the ancient Silk Road, but also a long-term international cooperation between China and relevant countries. As a China-led initiative, the BRI is built upon China's international vision according to its development process. Therefore, the book also discusses how China balances its own development process among different domestic regions, and how the Initiative fits into the changes of global economic system and brings positive change for developing and developed economies involved, on the long haul. Furthermore, this book aims to find out precise direction of the initiative in order to assess appropriate implication on development under current globalization and provide valuable experience for future economic synergetic development by reviewing the past cooperative experience as references for policy-making and prospective engagementIn terms of methodology, analyses were conducted applying multi-methods with best available evidence to enrich the understanding of the potential of the BRI in terms of socio-economic impact on cooperation and difference and similarities of economic, cultural characteristics and political system among countries.
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The Belt and Road: Industrial and Spatial Coordinated Development
Wei Liu, Hui Zhang
- Springer
- 13 Septembre 2022
- 9789811921339
This book mainly addresses China's Belt and Road Initiative in terms of the connectivity industrial and spatial development, as well as current world's economic and trade pattern under such synergy development, and focuses on the function and mechanism of industry and geography coordination. Although current research on the value circulation between China and developed economies is relatively adequate, the book focuses on the value circulation between the countries and regions, especially the developing economies. China and other developing countries tie strongly with the production value circulation. The coordination industrial and spatial development in the global value cycle is also the cornerstone of long-term stabilization and sustainable development in China. Therefore, this book provides the theoretical and empirical research on Belt and Road from the perspectives on industrial and spatial synergy. This book proposes several questions: Any inherent inlay between industrial and geographic allocation, i.e., is there any possibility for close integration? This book analyzes the necessity of coordinated development of industry and space perspective of production division. Secondly, from the perspective of historical evolution and current situation, it analyzes the relationship among industry, economic growth and fluctuation and compares realizing paths of synergy of industrial and spatial development. It contains the industry and spatial diffusion mechanism and the effect of synergy development. Moreover, the corresponding policy implication is provided for sustainable development through the Belt and Road Initiative.
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Robust Gain-Scheduled Estimation and Control of Electrified Vehicles via LPV Technique
Hui Zhang, Rongrong Wang, Junmin Wang
- Springer
- 10 Juin 2023
- 9789811985096
This book presents techniques such as the robust control and nonlinearity approximation using linear-parameter-varying (LPV) techniques. Meanwhile, the control of independently driven electric vehicles and autonomous vehicles is introduced. It covers a comprehensive literature review, robust state estimation with uncertain measurements, sideslip angle estimation with finite-frequency optimization, fault detection of vehicle steering systems, output-feedback control of in-wheel motor-driven electric vehicles, robust path following control with network-induced issues, and lateral motion control with the consideration of actuator saturation. This book is a good reference for researchers and engineers working on control of electric vehicles.
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Comparative Studies on Regional and National Economic Development
Hui Zhang, Yuxuan Tang, Tian Yi
- Springer
- 11 Mai 2023
- 9789811621055
This book is devoted to quantify the role of the world's major economies in the international division from the perspective of global value chains and clarify the value cycle system between China and developed and developing economies. This book establishes a theoretical paradigm that conforms to the current world economic structure. That is, the world economic structure gradually shifts from a single-cycle model centered on developed countries to a more complex dual-circulation model. Furthermore, based on the analysis of the current world economic situation, it also analyzes the interaction between trade and investment and the synergistic effect of the Corridors under the Belt and Road Initiative. The first part of the book brings a better understanding of mutual relationships between trade and investment under the Belt and Road Initiative and broadens the research fields of relevant studies. Additionally, comprehensive and specific country research is particularly conducted in this book. By analyzing the economic indicators, reviewing social history and social-economic development, covering various countries along the Belt and Road, it provides deep exploration of the fields and approaches of the most potential cooperation under the purpose of "Peace, Development, Cooperation and Win-Win." Therefore, this part draws a broad map of economic and cultures in order to provide a reference and assistance for promoting the Belt and Road Initiative. Fulfilling this vision, this book hopes to deepen the understanding of economic development of each relevant economy to encourage the participation of economies in regional connectivity.
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This book focuses on the core technologies of special robots. Both principles and engineering practice have been addressed. This is achieved by providing an in-depth study on several major topics such as the vision positioning of mobile robots, the autonomous motion control of ruin search and rescue robots, and typical applications of text questions and answers robots. The autonomous motion control technologies of ruin search and rescue robots and typical applications of text questions and answers robots are the major features of the book. The book benefits researchers, engineers, senior undergraduate students, and postgraduate students in the fields of visual positioning, path planning, autonomous motion control, and typical applications of special robots.
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Proceedings of the 14th International Symposium on Computer Science in Sport (IACSS 2023)
Martin Lames, Hui Zhang, Arnold Baca, Yingcai Wu
- Springer
- 22 Mai 2024
- 9789819728985
This book is a compilation of selected papers from the 14th International Symposium on Computer Science in Sport (IACSS 2023), held on September 27-30, 2023 in Hangzhou, China. The work focuses on the application of computer science and technology in the field of sports (such as intelligent data collection, data mining, visual analysis of game data, virtual reality, machine learning, computer vision, match prediction models and performance analysis). The contents make valuable contributions to academic researchers, college students, coaches and athletes, and sports management personnel (such as managers of sports associations, training bases, and professional clubs). Additionally, readers will encounter new ideas for realizing a more efficient and convenient training and exercise system.
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Key Construction Techniques for Large Diameter Shield Tunnel Crossing Circular Ventilation Shaft
Hui Li, Zhanhu Yao, Yazhou Zhang
- Springer
- 24 Juillet 2024
- 9789819738939
Based on the construction of Nanjing Weisan Road Yangtze River Tunnel, this book comprehensively introduces the new technology of large-diameter shield tunnel construction crossing circular air shafts. It focuses on four aspects: the construction technology of super-deep circular air shaft foundation pit retaining structure in the sensitive environment near the river, underwater excavation and underwater massive concrete sealing bottom construction technology, adaptive improvement of TBM and construction technology of crossing air shaft, and control technology of super-deep foundation pit stability during the process of conversion. This book combines theory with practice, and can provide reference for shield engineering construction. It can also be used as a reference for engineering and technical personnel, researchers, teachers and students in related majors in colleges who are engaged in shield tunnel engineering.