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Your search keyword '"Xia, Yihua"' showing total 15 results
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15 results on '"Xia, Yihua"'

13. A Decision-Support System for Off-Site Nuclear Emergencies

Author

Xia Yihua, Liu Tiefu, Xia Honghui, Zhang Yongxing, Gan Lin, Sang Xinzeng, and Pan Su

Subjects
China, Decision support system, Operations research, Cost–benefit analysis, Epidemiology, Computer science, Its region, Health, Toxicology and Mutagenesis, Rank (computer programming), Disaster Planning, Emergency procedure, Decision Support Techniques, law.invention, Radiation Protection, Action (philosophy), law, Nuclear power plant, Decision Support Systems, Management, Humans, Radiology, Nuclear Medicine and imaging, Emergencies, Radioactive Hazard Release, Early phase, Power Plants
Abstract

In the case of a nuclear emergency, quick, well-founded decisions must be made about the type of protective action, its region of application, and initiation time. These typically are tasks for computer-based systems. Even with emergency-preparedness, exercises, and training, the decision-support system is one of great importance. This paper describes a decision-support system recently developed by the China Institute of Atomic Energy; it can optimally rank actions during the early phase of an accident using multiattribute utility analysis, and for the intermediate and later phases by cost-benefit analysis. This system runs both on MICRO VAX II and PC systems.

Published
1998
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15. Location deviation correction method based on cross-correlation spectrum in OFDR.

Author

Zhang H, Xia Y, Zhang Z, Zhang Y, Zhang X, and Wang F

Abstract

A location deviation compensation algorithm based on cross-correlation spectrum is proposed for optical frequency domain reflection (OFDR) measurement. The strain and the imperfect repeatability of the laser source may cause a location deviation of the OFDR measurement system, resulting in a demodulation error. This paper proposes to use the peak-to-average ratio (PAR) to measure the quality of the correlation results and achieve compensation, which achieves efficient compensation for location deviation. Compared to other compensation methods, this algorithm can deal with the complex location deviation with better demodulation accuracy and stability. Through a strain measurement experiment, we demonstrate that the demodulation error caused by location deviation is largely eliminated. As a result, the spatial resolution of the system is improved from 8 cm to 2 cm, and the maximum measurement range is expanded to 5000µε.

Published
2023
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