Micro- and Nano-Bionic Surfaces: Biomimetics, Interface Energy Field Effects, and Applications synthesizes the latest research in bio-inspired surfaces and devices for tactile and flow field perception. The book provides solutions to common problems related to flow field/tactile perception, intelligent MEMS sensors, smart materials, material removal methods, cell/particle control methods, and micro-nano robot technology. With a heavy emphasis on applications throughout, the book starts by providing insights into biomimetic device design, outlining strategies readers can adopt for various engineering applications. From there, it introduces the controlling methods of smart materials, controlling methods from external energy input, and more. Sections demonstrate how to solve problems of high efficiency, high quality, and low damage material removal for metals, composites, soft tissues, and other materials by applying bionic wave-motion surface characteristics. The latest theoretical and technical developments in field control methods applied to biological interfaces are also discussed, and the book concludes with a chapter on fabrication strategies to synthesize micro/nano functional particles based on bio-templates. - Provides an overview on the latest research in bio-inspired surfaces and devices for tactile and flow-field perception - Introduces techniques for characterizing different bionic surfaces and how to use energy fields analysis to treat different bionic surface and interface problems - Discusses the latest theoretical and experimental developments in field control and their applications in the biomedical field - Outlines fabrication methods and assembly and alignment processes of micro-/nano-functional particles based on microorganism templates
This book fills the gap in World Englishes studies in terms of the pedagogic implication of China English and its use in the Chinese workplace. Using three triangulated methods, namely, questionnaire survey, matched-guise technique, and focused interview, the book adopts an innovative research methodology that combines quantitative and qualitative data from 3,493 participants. Overall, the participants still believe that the standardized Englishes are desirable models of English in China and that China English should be well codified and promoted before being adopted as the pedagogic model. In addition, the book proposes that the curriculum design of university English should include an introduction to the well-defined characteristics of China English and world Englishes. Last but not least, the book reveals that English is being used more widely and frequently in the professional world than before and has become increasingly important in China.
Already the focus of much interest for 50 years, the study of foreign language learning anxiety (FLLA) still remains a popular research topic among scholars in Western countries. FLLA is believed to be an important cause of students’ “dumb English”. Considering the paucity of monographs on FLLA in China, this book represents an important step towards filling this gap. The author uses his PhD dissertation as a foundation for reviewing and discussing previous literature, as well as the current status of and major issues concerning FLLA worldwide. The book explores FLLA in China by using innovative triangulated research methodology, combining both quantitative and qualitative methods, namely surveys, focused interviews, and classroom observations. It also highlights the significance and implications of the research results and predicts the future of global FLLA research with a particular focus on China. Readers will discover the latest developments and issues concerning FLLA, causes of FLLA, and verified, effective strategies for alleviating such anxiety.
This book is based on the authors’ recent research results on formation control problems, including time-varying formation, communication delays, fault-tolerant formation for multiple UAV systems with highly nonlinear and coupled, parameter uncertainties, and external disturbances. Differentiating from existing works, this book presents a robust optimal formation approach to designing distributed cooperative control laws for a group of UAVs, based on the linear quadratic regulator control method and the robust compensation theory. The proposed control method is composed of two parts: the nominal part to achieve desired tracking performance and the robust compensation part to restrain the influence of highly nonlinear and strongly coupled parameter uncertainties, and external disturbances on the global closed-loop control system. Furthermore, this book gives proof of their robust properties. The influence of communication delays and actuator fault tolerance can be restrained by the proposed robust formation control protocol, and the formation tracking errors can converge into a neighborhood of the origin bounded by a given constant in a finite time. Moreover, the book provides details about the practical application of the proposed method to design formation control systems for multiple quadrotors and tail-sitters. Additional features include a robust control method that is proposed to address the formation control problem for UAVs and theoretical and experimental research for the cooperative flight of the quadrotor UAV group and the tail-sitter UAV group. Robust Formation Control for Multiple Unmanned Aerial Vehicles is suitable for graduate students, researchers, and engineers in the system and control community, especially those engaged in the areas of robust control, UAV swarming, and multi-agent systems.
This book investigates the disagreement behavior analysis problems for signed networks in the presence of both cooperative and antagonistic interactions among agents. Owing to the existing antagonistic interactions, signed networks exhibit a variety of disagreement behaviors subject to different topology conditions, especially in comparison with commonly considered unsigned networks involving only cooperative interactions among agents. Since signed networks are generally adopted to describe the dynamics of some practical network systems, they have attracted much attention in many areas, such as biology, sociology, economics, and politics. By focusing on agents with the first-order linear dynamics, the book establishes the systematic behavior analysis frameworks for signed networks, under which diverse disagreement behaviors have been disclosed, including both convergence and fluctuation behaviors, regardless of static or dynamic network topologies. In particular, a class of dynamic signed networks has been introduced, together with the associated dynamic distributed controller design and disagreement behavior analysis of agents. This book is intended for undergraduate and graduate students, engineers, and researchers who are interested in control of network systems, multi-agent systems, social networks, and so on.
Micro- and Nano-Bionic Surfaces: Biomimetics, Interface Energy Field Effects, and Applications synthesizes the latest research in bio-inspired surfaces and devices for tactile and flow field perception. The book provides solutions to common problems related to flow field/tactile perception, intelligent MEMS sensors, smart materials, material removal methods, cell/particle control methods, and micro-nano robot technology. With a heavy emphasis on applications throughout, the book starts by providing insights into biomimetic device design, outlining strategies readers can adopt for various engineering applications. From there, it introduces the controlling methods of smart materials, controlling methods from external energy input, and more. Sections demonstrate how to solve problems of high efficiency, high quality, and low damage material removal for metals, composites, soft tissues, and other materials by applying bionic wave-motion surface characteristics. The latest theoretical and technical developments in field control methods applied to biological interfaces are also discussed, and the book concludes with a chapter on fabrication strategies to synthesize micro/nano functional particles based on bio-templates. - Provides an overview on the latest research in bio-inspired surfaces and devices for tactile and flow-field perception - Introduces techniques for characterizing different bionic surfaces and how to use energy fields analysis to treat different bionic surface and interface problems - Discusses the latest theoretical and experimental developments in field control and their applications in the biomedical field - Outlines fabrication methods and assembly and alignment processes of micro-/nano-functional particles based on microorganism templates
Already the focus of much interest for 50 years, the study of foreign language learning anxiety (FLLA) still remains a popular research topic among scholars in Western countries. FLLA is believed to be an important cause of students’ “dumb English”. Considering the paucity of monographs on FLLA in China, this book represents an important step towards filling this gap. The author uses his PhD dissertation as a foundation for reviewing and discussing previous literature, as well as the current status of and major issues concerning FLLA worldwide. The book explores FLLA in China by using innovative triangulated research methodology, combining both quantitative and qualitative methods, namely surveys, focused interviews, and classroom observations. It also highlights the significance and implications of the research results and predicts the future of global FLLA research with a particular focus on China. Readers will discover the latest developments and issues concerning FLLA, causes of FLLA, and verified, effective strategies for alleviating such anxiety.
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