Properties of nanocrystalline metals or alloys cannot be predicted according to the phenomena observed in traditional coarse-grained materials. Nanocrystalline materials exhibit special physical and chemical properties, such as extremely high mechanical strength, outstanding thermal, optical, magnetic and electrical properties. Deformation mechanisms of nanocrystalline materials have been discussed for many years. Previous literatures mainly focus on the investigation of deformation behaviors through in-situ experimental methods such as in-situ TEM observation or simulation methods by modeling. With regard to the in-situ TEM observation, it still remains controversial whether the TEM results can represent the deformation behaviors of bulk nanocrystalline materials. In line with the molecular dynamics simulation method, the materials are frequently assumed to be ideal and the strain rate utilized is extraordinarily high. All the above conditions almost cannot be met or validated through experiments. In this work, it is attempted to explore deformation mechanisms of nanocrystalline face-centered cubic metals or alloys based on texture evolution during plastic deformation. Dislocation movements in plastic deformation process are always followed by formation of deformation texture in most cases, and plastic deformation coordinated by grain boundary sliding and/or grain rotation mechanisms does not incur the occurrence of crystallographic texture. Therefore, investigations on texture evolution during plastic deformation are able to provide powerful evidence for the deformation mechanisms of nanocrystalline materials.
This book takes an ethnographic approach to discuss the policy practices within China’s broadcasting industry. Exploring the gap between the contemporary policy regime and its implementation in national broadcasters and streaming services, taking into account the interplay between broadcasters, political bodies, producers and audiences, Zhu explains the contemporary role of Chinese national broadcasters in mediating the public discourse, the collective reimagining of China’s national identity, and the newly-found policy initiative of using state media as a means of nation branding. Cases investigated include China Central Television (CCTV) Documentary, China Global Television Network (CGTN), and the Shanghai Media Group (SMG), as well as co-productions made by CCTV and international media firms, including the BBC, Discovery and the Japan Broadcasting Corporation (NHK), in a book that will interest scholars of Chinese politics, media studies, and sociology.
A biography of the author''s background which provides insight into his training in medicine and his opinions on the concepts and training that are necessary to be a good doctor. The aims of this book are to first show how coronary angioplasty was pioneered in Australia, Singapore and China. Second, it is to illustrate the founding of a long-awaited medical school in Xiamen, China where the author''s ancestors originate. Third, it is to describe the reformation of healthcare, cardiology, medical research and Art academy in Singapore. Fourth, it is to demonstrate the vision and realization of the third Asia Pacific cardiovascular intervention block. Last but not least, this book describes the merging of East West culture, medicine, art and a personal Christian testimony. This book hopes to show that with hard work, determination and vision, any young man or woman should be able to write a similar life story of their own. It is particularly important for young doctors to learn how not to bring grief but goodness to their patients and relatives. This book also illustrates the history of the development of coronary intervention in China and the rise of the Asia Pacific region in this field. Finally, this book provides a unique, personal perspective in the convergence of Eastern and Western culture, medicine and art. Sample Chapter(s). Foreword (241 KB). Chapter 1: Early Years (917 KB). Contents: Early Years; Vow to be a Doctor; A Good Doctor; Goodness not Grief; Xiamen University Medical College; Health Reform and Centres of Excellence; Asia Pacific OCo The Third Block; East and West, Science and God. Readership: Students, professional, and general public.
Properties of nanocrystalline metals or alloys cannot be predicted according to the phenomena observed in traditional coarse-grained materials. Nanocrystalline materials exhibit special physical and chemical properties, such as extremely high mechanical strength, outstanding thermal, optical, magnetic and electrical properties. Deformation mechanisms of nanocrystalline materials have been discussed for many years. Previous literatures mainly focus on the investigation of deformation behaviors through in-situ experimental methods such as in-situ TEM observation or simulation methods by modeling. With regard to the in-situ TEM observation, it still remains controversial whether the TEM results can represent the deformation behaviors of bulk nanocrystalline materials. In line with the molecular dynamics simulation method, the materials are frequently assumed to be ideal and the strain rate utilized is extraordinarily high. All the above conditions almost cannot be met or validated through experiments. In this work, it is attempted to explore deformation mechanisms of nanocrystalline face-centered cubic metals or alloys based on texture evolution during plastic deformation. Dislocation movements in plastic deformation process are always followed by formation of deformation texture in most cases, and plastic deformation coordinated by grain boundary sliding and/or grain rotation mechanisms does not incur the occurrence of crystallographic texture. Therefore, investigations on texture evolution during plastic deformation are able to provide powerful evidence for the deformation mechanisms of nanocrystalline materials.
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