Rui Li

Albert J. Shih

Bruce L. Tai

This book introduces state-of-the-art experimental and numerical methods and examples for evaluating the drilling performance of engineering and biological materials, particularly in thermal aspects. The authors use a common pathway to present the technological and analytical methods for both industry (metal) drilling and orthopaedic surgery (bone) drilling research, making this book a resource for both industrial and clinical readers who wish to understand the evolution of technologies, techniques and challenges in drilling. The authors also focus on advanced engineering materials, such as titanium alloys and high-strength cast irons, which have broad applications in the automotive, aerospace, medical device and sports industries. This book is a must-read for a broad audience, including engineering students in upper-level undergraduate and graduate courses that involve machining processes; for surgery residents, fellows, and practicing surgeons; and for engineers in the medical device industry who develop new bone cutting tools. Bridges the knowledge on drilling from the manufacturing industry to healthcare; Covers the experimental and modeling aspects of drilling thermal analysis; Includes experimental studies that contain parameters and data that emulate practical production and clinical drilling.

Metal and Bone Drilling - The Thermal Aspects

Xiaoming Zhu

Bingying Song

Yingzi Ni

Yifan Ren

This book introduces 10 mega business trends, ranging from big data to the O2O model. By mining and analyzing mountains of data, the author identifies these 10 emerging trends and goes to great lengths to explain and support his views with up-to-date cases. By incorporating the latest developments, this book allows readers to keep abreast of rapidly advancing digital technologies and business models. In this time of mass entrepreneurship and innovation, acquiring deep insights into business trends and grasping opportunities for innovation give readers (business executives in particular) and their companies a competitive advantage and the potential to become the next success story. The Chinese version of the book has become a hit, with some business schools using it as a textbook for their S&T Innovation and Business Trends programs. It also provides business executives with a practical guide for their investment and operation decisions.

Evolution of Theories and Applications

Business Trends in the Digital Era

Dehong Xu

Ning He

Jinyi Deng

Yuying Wu

Soft-Switching Technology for Three-phase Power Electronics Converters Discover foundational and advanced topics in soft-switching technology, including ZVS three-phase conversion In Soft-Switching Technology for Three-phase Power Electronics Converters, an expert team of researchers delivers a comprehensive exploration of soft-switching three-phase converters for applications including renewable energy and distribution power systems, AC power sources, UPS, motor drives, battery chargers, and more. The authors begin with an introduction to the fundamentals of the technology, providing the basic knowledge necessary for readers to understand the following articles. The book goes on to discuss three-phase rectifiers and three-phase grid inverters. It offers prototypes and experiments of each type of technology. Finally, the authors describe the impact of silicon carbide devices on soft-switching three-phase converters, studying the improvement in efficiency and power density created via the introduction of silicon carbide devices. Throughout, the authors put a special focus on a family of zero-voltage switching (ZVS) three-phase converters and related pulse width modulation (PWM) schemes. The book also includes: A thorough introduction to soft-switching techniques, including the classification of soft-switching for three phase converter topologies, soft-switching types and a generic soft-switching pulse-width-modulation known as Edge-Aligned PWM A comprehensive exploration of classical soft-switching three-phase converters, including the switching of power semiconductor devices and DC and AC side resonance Practical discussions of ZVS space vector modulation for three-phase converters, including the three-phase converter commutation process In-depth examinations of three-phase rectifiers with compound active clamping circuits Perfect for researchers, scientists, professional engineers, and undergraduate and graduate students studying or working in power electronics, Soft-Switching Technology for Three-phase Power Electronics Converters is also a must-read resource for research and development engineers involved with the design and development of power electronics.

Soft-Switching Technology for Three-phase Power Electronics Converters

Unfolding in the tense years of the Cultural Revolution (1966–1976), Trees Without Wind takes place in a remote Shanxi village in which a rare affliction has left the residents physically stunted. Director Liu, an older revolutionary and local commune head, becomes embroiled in a power struggle with Zhang Weiguo, a young ideologue who believes he is the model of a true revolutionary. Complicating matters is a woman named Nuanyu, who, like Zhang Weiguo and Director Liu, is an outsider untouched by the village's disease. "Wedded" to all of the male villagers, Nuanyu lives a polyandrous lifestyle based on necessity and at odds with the puritanical idealism of the Cultural Revolution. The deformed villagers, representing the manipulated masses of China, become pawns in the Party representatives' factional infighting. Director Liu and Zhang Weiguo's explosive tug-of-war is part of a larger battle among politics, self-interest, and passion gripping a world undone by ideological extremism. A collectively told narrative powered by distinctive subjectivities, Trees Without Wind is a milestone in the fictional treatment of a horrific event.

A Novel

Trees Without Wind

Rui Li

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