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Bài giảng Hệ thống thông tin kế toán: Chapter 3 - ThS. Vũ Quốc Thông
Bài giảng "Hệ thống thông tin kế toán - Chapter 3: Information system control for system reliability" presentation of content: Describe the framework for IS control, explain the factors that influence information systems reliability, apply control functions.
14 p dtu 22/03/2016 147 1
Từ khóa: Information system control for system reliability, Information system control, Describe the framework, Explain the factors, Apply control functions, System reliability
Slidig mode control in engineering
Many physical systems naturally require the use of discontinuous terms in their dynamics. This is, for instance, the case of mechanical systems with friction. This fact was recognized and advantageously exploited since the very beginning of the 20th century for the regulation of a large variety of dynamical systems. The keystone of this new approach was the theory of differential equations with discontinuous right-hand sides pioneered by...
416 p dtu 20/11/2012 165 3
Từ khóa: Slidig mode control in engineering, physical systems, hệ thống vật lý, mechanical systems, kỹ thuật điều khiển, khoa học công nghệ
Phased array antennas consist of multiple stationary antenna elements, which are fed coherently and use variable phase or time-delay control at each element to scan a beam to given angles in space. Variable amplitude control is sometimes also provided for pattern shaping. Arrays are sometimes used in place of fixed aperture antennas (reflectors, lenses), because the multiplicity of elements allows more precise control of the radiation pattern,...
515 p dtu 15/11/2012 241 2
Từ khóa: Phased Array Antenna, amplitude control, kiểm soát biên độ, scanned electronically, quét điện tử, communications system, thông số kỹ thuật
Control systems are used to regulate an enormous variety of machines, products, and processes. They control quantities such as motion, temperature, heat flow, fluid flow, fluid pressure, tension, voltage, and current. Most concepts in control theory are based on having sensors to measure the quantity under control. In fact, control theory is often taught assuming the availability of near-perfect feedback signals. Unfortunately, such an...
264 p dtu 15/11/2012 196 1
Từ khóa: Observers in Control Systems, Control systems, control theory, lý thuyết điều khiển, kỹ thuật điều khiển, hệ thống điều khiển
The engineering objective of high performance control using the tools of optimal control theory, robust control theory, and adaptive control theory is more achievable now than ever before, and the need has never been greater. Of course, when we use the term high performance control we are thinking of achieving this in the real world with all its complexity, uncertainty and variability. Since we do not expect to always achieve our desires, a...
362 p dtu 10/11/2012 203 2
Từ khóa: High Performance Control, control theory, control system, lý thuyết điều khiển, kỹ thuật điều khiển, điều khiển hệ thống
Fundamental Limitations in Filtering and Control
This book deals with the issue of fundamental limitations in ltering and control system design. This issue lies at the very heart of feedback theory since it reveals what is achievable, and conversely what is not achievable, in feedback systems. The subject has a rich history beginning with the seminal work of Bode during the 1940's and as subsequently published in his well-known book Feedback Amplier Design (Van Nostrand, 1945). An...
382 p dtu 09/11/2012 181 1
Từ khóa: system design, feedback theory, feedback systems, Fundamental Limitations Control, thiết kế hệ thống, hệ thống thông tin, kỹ thuật thông tin
Fuzzy Control Systems Design and Analysis
This book gives a comprehensive treatment of model-based fuzzy control systems. The central subject of this book is a systematic framework for the stability and design of nonlinear fuzzy control systems. Building on the so-called Takagi-Sugeno fuzzy model, a number of most important issues in fuzzy control systems are addressed. These include stability analysis, systematic design procedures, incorporation of performance specifications,...
309 p dtu 09/11/2012 215 4
Từ khóa: Fuzzy Control Systems, Design analysis, fuzzy control, hệ thống điều khiển, kỹ thuật điều khiển, kỹ thuật thi công
Analog and Digital Circuits for Electronic Control System Applications
Analog system designers many times in the past avoided the use of electronics for their system functions because electronic circuits could not provide the dynamic range of the signal without severe nonlinearity, or because the circuits drifted or became unstable with temperature, or because the computations using analog signals were quite inaccurate. As a result, the design shifted to other disciplines, for example, mechanical. Today,...
329 p dtu 07/11/2012 221 7
Từ khóa: Digital Circuits, Electronic Control, system designers, thiết kế hệ thống, hệ thống điều khiển, điều khiển điện tử
Adaptive control has been extensively investigated and developed in both theory and application during the past few decades, and it is still a very active research field. In the earlier stage, most studies in adaptive con trol concen-trated on linear systems.
360 p dtu 01/11/2012 150 1
Từ khóa: Adaptive Control Systems, kỹ thuật hệ thống, khoa học công nghệ, công nghệ ứng dụng, công nghệ viễn thông, khoa học ứng dụng