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Decision-Making Method for Problem of Goal Type Based on Evaluation Criterion
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作者 蒋尚华 冯勤超 +1 位作者 江孝感 徐南荣 《Journal of Southeast University(English Edition)》 EI CAS 2002年第3期254-258,共5页
The presently existing decision making method for problem of goal type, i.e. the goal programming, is popular to some extent. In this paper we analyzed the features of the problem and the method,based on which we foun... The presently existing decision making method for problem of goal type, i.e. the goal programming, is popular to some extent. In this paper we analyzed the features of the problem and the method,based on which we found some defects of the method and pointed out these defects. To overcome these defects we absorbed the spirit and exploited concepts of evaluation criterion and the fault measure of evaluation criterion. We proposed and applied a method with an evaluation criterion, after which we also p... 展开更多
关键词 multi objective decision making evaluation criterion fault measure of evaluation criterion pre optimized objective set
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Multi Objective Decision Making Method Based on Evaluation Criterion for Problems with Linear Value Function
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作者 蒋尚华 韩勇 徐南荣 《Journal of Southeast University(English Edition)》 EI CAS 1998年第1期114-121,共8页
A class of interactive multi objective decision making method by means of evaluation criterion is proposed for problems with linear value function,in which case,the decision maker(DM) usually has only unwhole infor... A class of interactive multi objective decision making method by means of evaluation criterion is proposed for problems with linear value function,in which case,the decision maker(DM) usually has only unwhole information of weights for objectives. The concept of fault measure of the evaluation criterion is proposed to measure the deviation of the evaluation criterion from the DMs preference structure.The approach to obtain an upper boundary of fault measure of an evaluation criterion,and the approach to modify the evaluation criterion to be one with smaller fault measure,and the approach to obtain a pre optimized objective set by evaluation criterion with certain fault measure are also proposed. 展开更多
关键词 multi objective decision making evaluation criterion fault measure of evaluation criterion pre optimized objective set
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ToMFIR-based fault detection approach in frequency domain
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作者 Wen Chen Chih Ping Yeh Hanlong Yang 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2011年第1期33-37,共5页
This paper is to explore further results for total measurable fault information-based residual(ToMFIR) approach to fault detection in dynamic systems.The ToMFIR contains the essential fault information and remains u... This paper is to explore further results for total measurable fault information-based residual(ToMFIR) approach to fault detection in dynamic systems.The ToMFIR contains the essential fault information and remains unaffected by control actions in a closed-loop system.It is composed of controller residual and output residual and some of further results are developed in frequency domain.Besides the ability of detecting actuator and sensor faults,it is able to detect faults/failures resulting from the computer used for control purpose that generates control signals.Currently,all of existing fault detection schemes cannot achieve the same task at all.A practical DC motor example,with a PID controller,is used to demonstrate the effectiveness of the ToMFIR-based fault detection.A comparison with the standard observer-based technique is also provided. 展开更多
关键词 fault detection total measurable fault informationbased residual(ToMFIR) output residuals controller residuals frequency domain.
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Research on Present Activity Characteristics of Heizi Fault and Discussion of Its Relative Problems
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作者 Jiang Jingxiang, Wen Heping, Ying Guanghua, and Liu HuiSeismological Bureau of Xinjiang Uygur Autonomous Region,Urumqi 830011, China 《Earthquake Research in China》 2002年第1期39-46,共8页
Based on other previous researches, we recalculate the micro-displacement along the Heizi fault with recent deformation data of the Heizi reservoir. The result shows that activity characteristics of Heizi fault has ch... Based on other previous researches, we recalculate the micro-displacement along the Heizi fault with recent deformation data of the Heizi reservoir. The result shows that activity characteristics of Heizi fault has changed greatly since 1973 and have experienced four phases. The third phase is characteristics of normal fault, and others characteristic of reverse faults. Constructing the reservoir dam and reservoir sluice has important effect on present activity of the fault, even changed the activity characteristics of faults in some phases. Seismicity has some effect on deformation data and fault activity. 展开更多
关键词 Heizi fault Heizi reservoir Spanning fault measurement Fault activity characteristics
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Landmarks in the application of electrical tomography in particle science and technology 被引量:4
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作者 Richard A.Williams 《Particuology》 SCIE EI CAS CSCD 2010年第6期493-497,共5页
Selected milestones in the development and use of electrical tomography in powder conveying, slurry processing and multi-phase flow are highlighted. The ability to map concentration in opaque mixtures under process-re... Selected milestones in the development and use of electrical tomography in powder conveying, slurry processing and multi-phase flow are highlighted. The ability to map concentration in opaque mixtures under process-realistic conditions was a major innovation for the method and has had far reaching implications. Subsequent developments have enabled velocity information to be abstracted resulting in the ability to measure component flux and motion. 展开更多
关键词 Computational fluid dynamics Fault condition and maloperation Flow measurement Flow regime identification Particle concentration Process control Process safety
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