Ji Wang – författare

New adaptive and event-triggered control designs with concrete applications in undersea construction, offshore drilling, and cable elevatorsControl applications in undersea construction, cable elevators, and offshore drilling present major methodological challenges because they involve PDE systems (cables and drillstrings) of time-varying length, coupled with ODE systems (the attached loads or tools) that usually have unknown parameters and unmeasured states. In PDE Control of String-Actuated Motion, Ji Wang and Miroslav Krstic develop control algorithms for these complex PDE-ODE systems evolving on time-varying domains.Motivated by physical systems, the book’s algorithms are designed to operate, with rigorous mathematical guarantees, in the presence of real-world challenges, such as unknown parameters, unmeasured distributed states, environmental disturbances, delays, and event-triggered implementations. The book leverages the power of the PDE backstepping approach and expands its scope in many directions.Filled with theoretical innovations and comprehensive in its coverage, PDE Control of String-Actuated Motion provides new design tools and mathematical techniques with far-reaching potential in adaptive control, delay systems, and event-triggered control.

This volume is published in honor of Professor Chaochen Zhou’s 80th birthday. The Festschrift contains 13 refereed papers by leading researchers who were among the participants of the celebratory conference in Changsha, China that took place in October 2017. The papers cover a broad spectrum of subjects related to Formal Methods for the development of computer systems. Topics include Probabilistic Programming, Concurrency, Quantum Computing, Domain Engineering, Real-time and Hybrid Systems, and Cloud Computing. Chaochen Zhou is internationally recognized for his own contributions and for the wide influence that he has had through his appointments in Oxford (UK) where he collaborated with Professor Tony Hoare, Lyngby (Denmark) where he worked with Professor Dines Bjørner, UNU-IIST (Macau) where he moved from being Principal Research Fellow to his appointed as Director of the Institute, as well as in Beijing. His book on the Duration Calculus (joint with Michael Hansen) made a seminal contribution to specifying and reasoning about real-time systems. Chaochen Zhou’s contributions have been marked by his election as a member of the Chinese Academy of Sciences.

This edited work covers piezoelectric materials in the form of beams, plates, shells, and other structural components in modern devices and structures. Applications are frequency control and detection functions in resonators, sensors, actuators, oscillations, and other smart and intelligent structures. The products and technology are with us in our daily life through computers and communication devices.The contributions cover novel methods for the analysis of piezoelectric structures including wave propagation, high frequency vibration, material characterization, and optimization of structures. Understanding of these methods is increasingly important in the design and modelling of next generation devices and micro-structures with piezoelectric elements and effects.