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Showing 27,626 through 27,650 of 27,827 results

Beam Diagnostics in Superconducting Accelerating Cavities: The Extraction of Transverse Beam Position from Beam-Excited Higher Order Modes (Springer Theses)

by Pei Zhang

An energetic charged particle beam introduced to an rf cavity excites a wakefield therein. This wakefield can be decomposed into a series of higher order modes and multipoles, which for sufficiently small beam offsets are dominated by the dipole component. This work focuses on using these dipole modes to detect the beam position in third harmonic superconducting S-band cavities for light source applications. A rigorous examination of several means of analysing the beam position based on signals radiated to higher order modes ports is presented. Experimental results indicate a position resolution, based on this technique, of 20 microns over a complete module of 4 cavities. Methods are also indicated for improving the resolution and for applying this method to other cavity configurations. This work is distinguished by its clarity and potential for application to several other international facilities. The material is presented in a didactic style and is recommended both for students new to the field, and for scientists well-versed in the field of rf diagnostics.

Automation in Tree Fruit Production: Principles and Practice

by Qin Zhang

The technology that allows automation in agriculture is rapidly developing and being applied to wide variety of key crops. This book focuses on automation in tree fruit crops worldwide. It covers topics such as automated tree fruit production systems, plant stress sensing and high-throughput phenotyping in precision horticulture, the economics of automation in tree fruit production, light interception sensing systems for canopy management, precision irrigation and water management, precision technologies for pest and disease management, opportunities for the application of robotics in tree fruit production, and the mechanical harvesting and handling of fruit crops.

Electric-Field Control of Magnetization and Electronic Transport in Ferromagnetic/Ferroelectric Heterostructures

by Sen Zhang

This book mainly focuses on the investigation of the electric-field control of magnetism and spin-dependent transportation based on a Co40Fe40B20(CoFeB)/Pb(Mg1/3Nb2/3)0. 7Ti0. 3O3(PMN-PT) multiferroic heterostructure. Methods of characterization and analysis of the multiferroic properties with in situ electric fields are induced to detect the direct magnetoelectric (ME) coupling. A switchable and non-volatile electric field control of magnetization in CoFeB/PMN-PT(001) structures is observed at room temperature, and the mechanism of direct coupling between the ferroelectric domain and ferromagnetic film due to the combined action of 109° ferroelastic domain switching in PMN-PT and the absence of magnetocrystalline anisotropy in CoFeB is demonstrated. Moreover, the electric-field control of giant magnetoresistance is achieved in a CoFeB-based spin valve deposited on top of (011) oriented PMN-PT, which offers an avenue for implementing electric-writing and magnetic-reading random access memory at room temperature. Readers will learn the basic properties of multiferroic materials, many useful techniques related to characterizing multiferroics and the interesting ME effect in CoFeB/PMN-PT structures, which is significant for applications.

Dynamic Mechanical Behaviors and Constitutive Model of Roller Compacted Concrete (Hydroscience and Engineering)

by Sherong Zhang Xiaohua Wang Chao Wang

This book systematically illustrates the dynamic mechanical behaviors and discusses the fundamentals of the constitutive modeling of roller-compacted concrete (RCC), influenced by the construction technique and mix design. Four typical problems are analyzed using laboratory tests, numerical simulation and theoretical analysis, i.e., to illustrate the special dynamic mechanical behaviors of RCC, to reveal the dynamic size-dependence of mechanical properties, to discuss the aggregate size effect on dynamic mechanical properties, and to modify the dynamic constitutive model for RCC. Generally, the constitutive modeling of RCC needs a comprehensive understanding of dynamic size-dependence and aggregate size effect of concrete that coupled with the strain-rate sensitivity. So that, readers can master the modified dynamic constitutive model of RCC to analyze and solve the problems in blast-resistance analysis and protective design of RCC dams.This book can be used as a postgraduate textbook for civil and hydraulic engineering in colleges and universities, and as an elective course for senior undergraduates. It can also be used as a reference for relevant professional scientific researchers and engineers in field of protective design of concrete structures.

Chiral and Topological Nature of Magnetic Skyrmions (Springer Theses)

by Shilei Zhang

This book focuses on the characterisation of the chiral and topological nature of magnetic skyrmions in noncentrosymmetric helimagnets. In these materials, the skyrmion lattice phase appears as a long-range-ordered, close-packed grid of nearly millimetre-level correlation length, while the size of a single skyrmion is 3–100 nm. This is a very challenging range of length scales (spanning 5 orders of magnitude from tens of nm to mm) for magnetic characterisation techniques, and, to date, extensive information on this fascinating, magnetically ordered state has remained elusive. In response, this work develops novel resonant elastic x-ray scattering (REXS) techniques, which allow the magnetic structure, including the long-range order and domain formation, as well as microscopic skyrmion parameters, to be measured across the full range of length scales. Most importantly, using circular dichroism in REXS, the internal structure of a given skyrmion, the topological winding number, and the skyrmion helicity angle can all be unambiguously determined. These new techniques are applicable to many materials systems, and allow us to retrieve information on modulated spin structures, multiferroic order, spin-density-waves, and other forms of topological magnetic order.

Towards Healthy Settlements: Health Implications of Residential Suburbanization in Guangzhou (Urban Sustainability)

by Tianyao Zhang

This book aims to formulate recommendations for achieving a healthy neighborhood living environment for the middle-income people in China‘s suburbs. In China, the expeditious urbanization triggers the prosperous commodity housing development, which further grows with the spatial restructuring and socioeconomic transition. Residential suburbanization is generated, accompanied with the emergence of new-middle class and the change of lifestyle. However, the health effects of suburbanization in China are overlooked. This book investigates the health performance of suburban residents and the effects of suburban living on residents‘ health. This book also examines the resident-environment transaction modes to unfold the underlying mechanism of suburban living affecting residents’ health. Suburban residents had to passively adapt to their residential environment, which is the obstacle for achieving a health-promoting environment. The institutional dynamics determining the health performance of suburban living environment were addressed with the roles of governments, developers, planners, housing managers, residents‘ committee, and ordinary residents in commodity housing development. The book found no institutional support for the creation of health-promoting environments, especially with default of governments and excessive dependence on developers for public service facilities and the absence of civil society. Thus, the book proposes that institutional innovations are necessary in term of embedding the health dimension in all sectors of the society, enlisting collaboration between public and private sectors, and between health and non-health sectors, and thus cultivating the optimization of residents-environment transactions to create health-promoting environments.

MARS Applications in Geotechnical Engineering Systems: Multi-Dimension with Big Data

by Wengang Zhang

This book presents the application of a comparatively simple nonparametric regression algorithm, known as the multivariate adaptive regression splines (MARS) surrogate model, which can be used to approximate the relationship between the inputs and outputs, and express that relationship mathematically. The book first describes the MARS algorithm, then highlights a number of geotechnical applications with multivariate big data sets to explore the approach’s generalization capabilities and accuracy. As such, it offers a valuable resource for all geotechnical researchers, engineers, and general readers interested in big data analysis.

Design of Deep Braced Excavation and Earth Retaining Systems Under Complex Built Environment: Theories and Case Studies

by Wengang Zhang Hanlong Liu

This book presents basic design theories and principles and provides detailed analysis for excavation failure cases based on the author's research experience, aiming to provide a comprehensive picture of the subject matter. It focuses on the basal heave stability analysis, the apparent earth pressure as well as the strut force determination, the retaining wall deflection, the ground settlement, the protection measures such as jet grouting slabs or piles, case reports, back analysis methodology. From the very basic to the most advanced, it tries to attain theoretical rigorousness and consistency. On the other hand, this book also tries to cope with design practice, implemented by the recent publications from the authors. Students, researchers, and design engineers working in the field of civil engineering could benefit from this book.

Application of Soft Computing, Machine Learning, Deep Learning and Optimizations in Geoengineering and Geoscience

by Wengang Zhang Yanmei Zhang Xin Gu Chongzhi Wu Liang Han

This book summarizes the application of soft computing techniques, machine learning approaches, deep learning algorithms and optimization techniques in geoengineering including tunnelling, excavation, pipelines, etc. and geoscience including the geohazards, rock and soil properties, etc. The book features state-of-the-art studies on use of SC,ML,DL and optimizations in Geoengineering and Geoscience. Considering these points and understanding, this book will be compiled with highly focussed chapters that will discuss the application of SC,ML,DL and optimizations in Geoengineering and Geoscience. Target audience: (1) Students of UG, PG, and Research Scholars: Several applications of SC,ML,DL and optimizations in Geoengineering and Geoscience can help students to enhance their knowledge in this domain. (2) Industry Personnel and Practitioner: Practitioners from different fields can be able to implement standard and advanced SC,ML,DL and optimizations for solving critical problems of civil engineering.

Regional Integration and Governance Reshuffling in the Making of China’s City-Regions (Urban Sustainability)

by Xianchun Zhang

This book for the first time thoroughly investigates the extent of economic and institutional integrations and the underlying governance reshuffling process of China’s city-regionalism. By using the Shenzhen-Dongguan-Huizhou sub-region (SDH) in southern China as an empirical case, this book provides convincing evidence that China’s city-regionalism is essentially a state-orchestrated and institution-based process. Perspectives from “market-industry-infrastructure” and multi-level governance (MLG) have been provided to systematically examine China’s city-regionalism. This book has essentially made a definitive contribution to China’s regional governance. Methodologically, it shows how China’s city-regionalism can be examined through a problem-solving and case-by-case paradigm, through building a bridge between an empirical slogan and an inclusive theoretical term for institutional integration and through MLG and its integrative approaches in China. Exhilarating findings are presented using extensive tables, graphs, and maps along with the integration of quantitative and qualitative methods. Undergraduates, graduates, and researchers who are interested in China’s city-regionalism and regional governance would be the readership of the book, and officers from different levels of government as well as policymakers will find the book inspiring.

Principle, Design and Optimization of Air Balancing Methods for the Multi-zone Ventilation Systems in Low Carbon Green Buildings

by Xin Zhang Can Cui Wen-Jian Cai Hui Cai Gang Jing

This book presents a systematic study on the air balancing technologies in heating, ventilation and air conditioning (HVAC) systems. Several modern air balancing methods, including advanced control-based air balancing, data-driven-based air balancing, and energy-saving-oriented air balancing, are introduced in this book to balance the air duct system. Furthermore, this book provides clear instructions for both HVAC designers and engineers, as well as researchers, on how to design and balance duct systems for improved performance and energy efficiency.

Modeling with Digital Ocean and Digital Coast

by Xin Zhang Lei Wang Xiaoyi Jiang Changming Zhu

This book presents essential new insights in research and applications concerning spatial information technologies and coastal disaster prevention modeling for oceanic and coastal regions. As a new research domain of Digital Earth, it covers the latest scientific and technical advances, from the acquisition and integration of observational data, ocean spatio-temporal analysis and coastal flood forecasting to frequency modeling and the development of technical platforms. The individual chapters will be of interest to specialists in oceanic and coastal monitoring and management who deal with aspects of data integration, sharing, visualization, and spatio-temporal analysis from a Digital Earth perspective.

Energy Solutions to Combat Global Warming

by Xinrong Zhang Ibrahim Dincer

This book gathers an in-depth collection of 45 selected papers presented at the Global Conference on Global Warming 2014 in Beijing, China, covering a broad variety of topics from the main principles of thermodynamics and their role in design, analysis, and the improvements in performance of energy systems to the potential impact of global warming on human health and wellbeing. Given energy production's role in contributing to global warming and climate change, this work provides solutions to global warming from the point of view of energy. Incorporating multi-disciplinary expertise and approaches, it provides a platform for the analysis of new developments in the area of global warming and climate change, as well as potential energy solutions including renewable energy, energy efficiency, energy storage, hydrogen production, CO2 capture and environmental impact assessment. The research and analysis presented herein will benefit international scientists, researchers, engineers, policymakers and all others with an interest in global warming and its potential solutions.

Sustainable Development of Water Resources and Hydraulic Engineering in China: Proceedings For The 2016 International Conference On Water Resource And Hydraulic Engineering (Environmental Earth Sciences Ser.)

by Yong Zhang Wei Dong Yanqing Lian

This book presents the gatherings of the “2016 International Conference on Water Resource and Hydraulic Engineering,” which primarily focused on the sustainable development of water resources and the environment in both China and the United States. The respective papers cover a wide variety of research areas, including watershed hydrology; river hydraulics; groundwater hydrology; water resources management and sustainability development; water supply planning under climate change; water quality analysis and water pollution; sponge city development and urban watershed management; environment and sustainability; global connections between air and water; and irrigation and drainage issues for agricultural engineering. The contributions will be of interest to a global readership and highlight the emerging problems facing developing countries, as well as research and measures to successfully deal with them and promote a greener and more eco-friendly living environment.

Place Making in International Practice of Landscape Architecture: A Study of Australian Practices in China (Advanced Topics in Science and Technology in China #64)

by Yun Zhang

This book explores international practice in landscape architecture, focusing on the provision of services from Australia to China during China’s contemporary urbanization and Australian landscape architects’ approaches to place. Landscape architectural practice requires planners and designers to have a deep understanding of local culture, site characteristics, craftsmanship and even project procedures that are often intangible. How to acquire the above local knowledge has become a major challenge for international teams. Through the survey of the practice of Australian landscape practices in China and the case study of Li Lake planning and design project, this book reveals the process and difficulties of landscape planning and design as a transnational practice, as well as its special value as a way of cross-cultural fertilization. This book is intended for students, practitioners and researchers in the fields of landscape architecture, architecture and urban planning.

Proceedings of the 5th International Symposium on Water Pollution and Treatment—ISWPT 2022, Bangkok, Thailand (Lecture Notes in Civil Engineering #366)

by Yunhui Zhang

This book presents the selected papers presented at the 5th International Symposium on Water Pollution and Treatment (ISWPT 2022), held during October 28–29, 2022, in Bangkok, Thailand. It consists of themes pertaining to water management, policy and governance, and water governance and provides readers with comprehensive information on the principles of sustainable water resources management, as well as recent advances, directions for future research, and policy development for sustainable water resources management. This book is of interest to scientists, engineers, government officials, and water resource managers.

Hydraulic Transients and Computations

by Zh. Zhang

This book describes the fundamental phenomena of, and computational methods for, hydraulic transients, such as the self-stabilization effect, restriction of the Joukowsky equation, real relations between the rigid and elastic water column theories, the role of wave propagation speed, mechanism of the attenuation of pressure fluctuations, etc. A new wave tracking method is described in great detail and, supported by the established conservation and traveling laws of shockwaves, offers a number of advantages. The book puts forward a novel method that allows transient flows to be directly computed at each time node during a transient process, and explains the differences and relations between the rigid and elastic water column theories. To facilitate their use in hydropower applications, the characteristics of pumps and turbines are provided in suitable forms and examples. The book offers a valuable reference guide for engineers and scientists, helping them make transient computations for their own programming, while also contributing to the final standardization of methods for transient computations.

New Prospects in Environmental Geosciences and Hydrogeosciences: Proceedings of the 2nd Springer Conference of the Arabian Journal of Geosciences (CAJG-2), Tunisia 2019 (Advances in Science, Technology & Innovation)

by Zhihua Zhang Amjad Kallel Nabil Khélifi Haroun Chenchouni Helder I. Chaminé Broder J. Merkel Md Firoz Khan Peiyue Li

This edited book gives a general overview on current research, focusing on geoenvironmental issues and challenges in hydrogeosciences in model regions in Asia, Europe, and America, with a focus on the Middle East and Mediterranean region and surrounding areas. This proceedings book is based on the accepted papers for oral/poster presentations at the 2nd Springer Conference of the Arabian Journal of Geosciences (CAJG-2), Tunisia 2019. It offers a broad range of recent studies that discuss the latest advances in geoenvironmental and hydrogeosciences from diverse backgrounds including climate change, geoecology, biogeochemistry, water resources management, and environmental monitoring and assessment. It shares insights on how the understanding of ecological, climatological, oceanic and hydrological processes is the key for improving practices in environment management, including the eco-responsibility, scientific integrity, and social and ethical dimensions. It is of interest to scientists, engineers, practitioners, and policymakers in the field of environmental sciences including climatology, oceanography, ecology, biogeochemistry, environmental management, hydrology, hydrogeology, and geosciences in general. In particular, this book is of great value to students and environment-related professionals for further investigations on the state of Earth systems.

International Economics of Resource Efficiency: Eco-Innovation Policies for a Green Economy

by Zhongxiang Zhang Paul J.J. Welfens Raimund Bleischwitz

Human societies face a threatening future of resource scarcity and environmental damages. This book addresses the challenge of turning these risks into opportunities and policies. It is a collection of high level contributions from experts of sustainable growth and sustainable resource management. Focussing on economics, sustainability, technology and policy, the book highlights system innovation, leapfrogging strategies of emerging economies, possible rebound effects and international market development. It puts natural resources centre stage and will make an important contribution to achieving the goal of a 21st century Green Economy.

Proceedings of GeoShanghai 2018 International Conference: Rock Mechanics and Rock Engineering

by Cheng Zhao Bruno Goncalves da Silva Lianyang Zhang

This book is the third volume of the proceedings of the 4th GeoShanghai International Conference that was held on May 27 - 30, 2018. This volume, entitled “Rock Mechanics and Rock Engineering” , covers the recent advances and technologies in rock mechanics and rock engineering. These papers are grouped in three categories: (1) Theoretical and numerical study of rock behaviours, (2) Experimental study of rock behaviours, and (3) Applications of rock mechanics and case studies. This volume presents the state-of-the-art theories, methodologies and findings in the related areas. The book may benefit researchers and scientists from the academic fields of rock mechanics and rock engineering, geotechnical engineering, geoenvironmental engineering, transportation engineering, geology, mining and energy, as well as practical engineers from the industry.Each of the papers included in this book received at least two positive peer reviews. The editors would like to express their sincerest appreciation to all of the anonymous reviewers all over the world, for their diligent work.

Dynamic and Transient Infinite Elements

by Chongbin Zhao

This monograph aims to provide a state-of-the-art theory and the application of dynamic and transient infinite elements for simulating the far fields of infinite domains involved in many of scientific and engineering problems, based on the author's own work during the last two decades. While the theoretical aspects of either dynamic infinite elements or transient infinite elements are systematically presented, the related application examples are immediately followed to illustrate the usefulness and applicability of these infinite elements for simulating a wide range of dynamic and transient problems involving infinite domains. To broaden the readership of this monograph, common mathematical notations are used to derive the formulations of both dynamic and transient infinite elements. This enables this monograph to be used either as a useful textbook for postgraduate students or as a valuable reference book for computational geoscientists, geotechnical engineers, civil engineers, geoscientists and applied mathematicians.

Physical and Chemical Dissolution Front Instability in Porous Media

by Chongbin Zhao

This monograph provides state-of-the-art theoretical and computational findings from investigations on physical and chemical dissolution front instability problems in porous media, based on the author's own work. Although numerical results are provided to complement theoretical ones, the focus of this monograph is on the theoretical aspects of the topic and those presented in this book are applicable to a wide range of scientific and engineering problems involving the instability of nonlinear dynamic systems. To appeal to a wider readership, common mathematical notations are used to derive the theoretical solutions. The book can be used either as a useful textbook for postgraduate students or as a valuable reference book for computational scientists, mathematicians, engineers and geoscientists.

Fundamentals of Computational Geoscience

by Chongbin Zhao Bruce E. Hobbs Alison Ord

This monograph aims to provide state-of-the-art numerical methods, procedures and algorithms in the field of computational geoscience, based on the authors' own work during the last decade. Although some theoretical results are provided to verify numerical ones, the main focus of this monograph is on computational simulation aspects of the newly-developed computational geoscience discipline. The advanced numerical methods, procedures and algorithms presented are also applicable to a wide range of problems in both geological length-scales and engineering length-scales. In order to broaden the readership, common mathematical notations are used to describe the theoretical aspects of geoscience problems, making it either an invaluable textbook for postgraduate students or an indispensable reference book for computational geoscientists, mathematicians, engineers and geoscientists.

Multiscale Seismic Tomography

by Dapeng Zhao

This book on multiscale seismic tomography, written by one of the leaders in the field, is suitable for undergraduate and graduate students, researchers, and professionals in Earth and planetary sciences who need to broaden their horizons about seismotectonics, volcanism, and interior structure and dynamics of the Earth and Moon. It describes the state-of-the-art in seismic tomography, with emphasis on the new findings obtained by applying tomographic methods in local, regional, and global scales for understanding the generating mechanism of large and great earthquakes such as the 2011 Tohoku-oki earthquake (Mw 9. 0), crustal and upper mantle structure, origin of active arc volcanoes and intraplate volcanoes including hotspots, heterogeneous structure of subduction zones, fate of subducting slabs, origin of mantle plumes, mantle convection, and deep Earth dynamics. The first lunar tomography and its implications for the mechanism of deep moonquakes and lunar evolution are also introduced.

Transparent Soil Modelling Technique and Its Application (Springer Tracts in Civil Engineering)

by Honghua Zhao Gangqiang Kong Wanghua Sui

This book systematically introduces the advancement of transparent soil modelling technique and its application. The transparent soil modelling technique provides an essential tool for visualizing soil-structure interaction and other geotechnical problems such as grouting, soil plugging. The geotechnical properties of the newest transparent soils were reported on model sand, clay and rock. In addition, more advanced image processing methods were summarized. In this book, numerous applications of transparent soil modelling techniques for different geotechnical problems were presented, and the results obtained are supplemented by numerical calculation and theoretical analysis.

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