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This book presents dynamic response, vibration characteristics, and nonlinear behavior of complex oil and gas well string by using a combination of theoretical methods, numerical simulation, and experimental analysis. It lays both theoretical and experimental foundation for the design of oil and gas well string parameters. The theoretical methods involved mainly include Hamilton's principle, finite element method, and energy method, while experimental methods involved include similarity principle, vibration testing method, and modal analysis method. It is a valuable reference for both...

The recent rise in reported public security issues in China is one of the most repeated concerns amongst the Chinese authorities. During the past thirty years of reform in China, stability maintenance as a governance strategy has in fact laid a solid foundation for the overall development and growth of the nation. However, it remains to be seen whether this approach can sustain economic growth as well as political stability in the near future.

This book examines this policy of stability maintenance, as adopted by the Chinese government, in different social circumstances. Using a...