This book presents the modeling and transmission theory of RF OAM communications. The book features the UCA-based RF point-to-point OAM communication system, the UCA-based RF point-to-multipoint OAM wireless backhaul network, the HCCL structure for long-distance OAM transmissions, and the UCA-based joint OAM RadCom scheme. For the UCA-based RF point-to-point OAM communication system, a 2-D ESPRIT-based distance and AoA estimation method is first introduced, followed by an OAM reception scheme including the hybrid mechanical and electronic beam steering with the estimated AoA and the amplitude detection with the estimated distance. The proposed RF OAM communication scheme is extended to the RF OAM-MIMO system equipped with UCCAs. For the UCA-based RF point-to-multipoint OAM wireless backhaul network, an OAM-based multi-user distance and AoA estimation method is introduced, followed by a multi-user OAM preprocessing scheme. At last, the proposed methods are extended to the downlink multi-user OAM-MIMO wireless backhaul system equipped with UCCAs. Moreover, a novel HCCL structure is introduced to realize long-distance OAM transmission. For the UCA-based joint OAM RadCom scheme, an OAM-based 3-D super-resolution position estimation and rotation velocity detection method is introduced, and then the PCRB of the OAM-based estimates and the transmission rate of the integrated system are derived and analyzed. To achieve the best performance trade-off, the transmitted integrated OAM beams is optimized by means of an exhaustive search method. Finally, this book discusses future research directions to inspire further investigation in the field of RF OAM communications from different perspectives.

The three-volume set CCIS 923, CCIS 924, and CCIS 925 constitutes the thoroughly refereed proceedings of the First International Conference on Intelligent Manufacturing and Internet of Things, and of the 5th International Conference on Intelligent Computing for Sustainable Energy and Environment, ICSEE 2018, held in Chongqing, China, in September 2018.The 135 revised full papers presented were carefully reviewed and selected from over 385 submissions.The papers of this volume are organized in topical sections on: digital manufacturing; industrial product design; logistics, production and operation management; manufacturing material; manufacturing optimization; manufacturing process; mechanical transmission system; robotics.

What were the new People's Republic of China's policies to the Universal Postal Union in its early years? How did they help China promote its national interests in the world stage? Why did China train Albanian interns in the Cold War? Was it out of 'communist fraternity' or was it part of China's concerted public diplomacy efforts? And what role has China's medical assistance to developing countries, especially those in Africa, played in its foreign affairs?Penned by well-known international relations scholars from China, the eight essays in this volume attempt to answer those questions and more. Based on rich literature, including some newly declassified files from the Chinese Ministry of Foreign Affairs, this volume introduces some of the most interesting and significant, but lesser-known, episodes in the diplomatic history of the People's Republic of China, and tries to shed light on their implications and impact on China's diplomacy.

What is the relationship between China and the international society? It is a question of historical and realistic significance for China and the world to answer.Since the reform and opening up, China initiated a journey to get integrated into the international society. As an emerging power, China is trying to seek identities, display strength, and build a good reputation. Under various determinants and possibilities, the relationship between China and the international society manifests a feature of complexity and multiple dimensions.Following a guideline of "on China, for the world", this volume intends to introduce Chinese scholars' latest studies on China's global strategies, theories and policies to the outside world.

This book selects the most outstanding journal articles from the Chinese version of Foreign Affairs Review written by prestigious Chinese scholars in recent years. The articles focus on analysis of foreign affairs issues which are of relevance to China, and provide insightful perspectives on China's diplomacy and international system.The scope of the book is broad, including both theoretical insights and solid case studies. It covers recent hotspots in practice, like public participation in China's diplomacy, safety issues of overseas Chinese, and concepts of Chinese diplomacy like "People First", as well as case studies on historical events or long-term practices. The book provides fresh and insightful articles from Chinese perspectives, which will benefit international readers who are interested in China's diplomacy, foreign affairs and international relations.