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This book offers a comprehensive review of the state-of-the-art theoretical and experimental advances in linear and nonlinear parity-time-symmetric systems in various physical disciplines, and surveys the emerging applications of parity-time (PT) symmetry. PT symmetry originates from quantum mechanics, where if the Schrodinger operator satisfies the PT symmetry, then its spectrum can be all real. This concept was later introduced into optics, Bose-Einstein condensates, metamaterials, electric circuits, acoustics, mechanical systems and many other fields, where a judicious balancing of gain and loss constitutes a PT-symmetric system. Even though these systems are dissipative, they exhibit many signature properties of conservative systems, which make them mathematically and physically intriguing. Important PT-symmetry applications have also emerged. This book describes the latest advances of PT symmetry in a wide range of physical areas, with contributions from the leading experts. It is intended for researchers and graduate students to enter this research frontier, or use it as a reference book.
This book has been approved by the ECDL Foundation (who set the syllabus, arrange the tests, approve courseware, training, and testing). It contains everything necessary to pass the ECDL, covering each of the seven modules in a simple, jargon-free way.
This book constitutes the refereed proceedings of the 15th International Symposium on Foundations and Practice of Security, FPS 2022, held in Ottawa, ON, Canada, during December 12–14, 2022. The 26 regular and 3 short papers presented in this book were carefully reviewed and selected from 83 submissions. The papers have been organized in the following topical sections: Cryptography; Machine Learning; Cybercrime and Privacy; Physical-layer Security; Blockchain; IoT and Security Protocols; and Short Papers.
Everything you need to pass the new ECDL Windows XP exam. Covering information on al seven modules, this course book offers students all they need.
This comprehensive coursebook covers all 7 modules of the new ECDL syllabus using the most popular business software.
The European Computer Driving Licence is a European qualification that enables individuals to demonstrate their competency in computer skills. Focusing mainly on Microsoft software, this text covers basic word processing procedures.