作者机构：
[Yan, S. Q.; Ge, T.; Zeng, S.; Li, X. Y.; Ma, T. L.; Liu, F. L.; Su, Y.; Ma, R. G.; Nan, D.; Zhang, L.; Zhang, H.; Dang, Y. L.; Fu, G. Y.; Chen, L. H.; Li, Z. H.; Wu, D.; Lyu, Y. L.; Zheng, Y.; Li, Y. J.; Ma, X.; Liu, W. P.; Tang, B.; Shen, Y. P.; Guo, B.; Lian, G.; Wang, Y. B.; Han, Z. Y.; Cui, B. Q.; Zhang, T. J.; He, Y. F.] China Inst Atom Energy, POB 275 10, Beijing 102413, Peoples R China.;[Su, J.] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China.;[Brown, B. A.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.;[Brown, B. A.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.;[Yuan, C. X.] Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol, Zhuhai 519082, Peoples R China.
通讯机构：
[Wang, Y. B.] C;China Inst Atom Energy, POB 275 10, Beijing 102413, Peoples R China.
摘要：
The exotic beta-gamma-alpha decay mode of Na-20 has been directly observed for the first time in the Day-one experiment at the Beijing Radioactive Ion-beam Facility. The Na-20 source was produced by using a 100-MeV proton beam bombarding a stack of microporous MgO thick target and delivered as an intense mass separated beam after online ionization. A high-efficiency simultaneous measurement of beta, gamma, and alpha transitions enables the beta-delayed gamma-gamma and alpha-gamma coincidence spectroscopy. Three beta-gamma-alpha exotic decay sequences in Na-20 are discovered, which expands the rare decay modes observed in beta decay. Moreover, a beta-alpha-decay sequence to the 6130-keV 3(-) state of O-16 is observed, which is likely through the 12 367-keV 1(+) state in Ne-20. The experimentally deduced B(F) and B(GT) are compared to the shell-model calculation, the allowed beta transition strengths can be well accounted for by using sd shell-model space interactions.
作者机构：
[张力; 陈帅] College of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[青涛] Hunan Institute of Technology, Hengyang;421002, China
作者机构：
[陈帅; 张力; 陈潮] College of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[青涛] Institute of Human Factor Engineering and Safety Management, Hunan Institute of Technology, Hengyang;421002, China
作者机构：
[陈帅; 张力] College of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[青涛] Hunan Institute of Technology, Hengyang;421002, China
通讯机构：
College of Nuclear Science and Technology, University of South China, Hengyang, Hunan, China
作者机构：
[Li, Pengcheng; Zhang, Li; Li, Xiaofang; Dai, Licao] Univ South China, Human Factor Inst, Hengyang 421001, Hunan, Peoples R China.;[Li, Pengcheng] Univ N Carolina, Syst Engn & Engn Management, Charlotte, NC 28223 USA.;[Li, Pengcheng] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Dai, Licao] U;Univ South China, Human Factor Inst, Hengyang 421001, Hunan, Peoples R China.
关键词：
Model validation;Simulation experiment;SA reliability;Fuzzy logic-AHP;Digital nuclear power plants
摘要：
Situation awareness (SA) reliability of operators is an important component of human reliability analysis (HRA) in digital nuclear power plants (NPPs). Therefore, how to identify effectively and reliably the risk of SA errors is of great significance for SA error prevention and risk reduction. SA reliability assessment model or method based on fuzzy logic and analytic hierarchy process (AHP) is forwarded in the first paper. In order to prove its effectiveness and reliability, sensitivity analysis and simulator experiments are applied to testify our model in this paper. The results show that the proposed assessment model of SA reliability has a certain degree of sensitivity as well as an accuracy of prediction, and there are a strong correlation and consistency between the predicted value from fuzzy inference system and the real value (or observed value) from simulator experiments. Although there are some differences between the predicted value and the real value based on the perspective of HRA, the model can be used to predict SA error probability or SA reliability within the range of 10 error factors as well as provide data and theoretical support for SA reliability assessment.
作者机构：
[刘雪阳; 张力; 陈帅] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;[邹衍华; 洪俊] Institute of Human Factors Engineering & Safety Management, Hunan Institute of Technology, Hengyang;421002, China;[刘雪阳; 陈帅] 421001, China
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, China
作者机构：
[Li, Pengcheng; Zhang, Li; Li, Xiaofang; Dai, Licao] Univ South China, Human Factor Inst, Hengyang 421001, Hunan, Peoples R China.;[Li, Pengcheng] Univ N Carolina, Syst Engn & Engn Management, Charlotte, NC 28223 USA.;[Li, Pengcheng] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.;[Zou, Yanhua] Hunan Inst Technol, Inst Human Factor & Safety Management, Hengyang 421002, Hunan, Peoples R China.
通讯机构：
[Li, Pengcheng] U;Univ South China, Human Factor Inst, Hengyang 421001, Hunan, Peoples R China.
关键词：
Situation awareness reliability;Fuzzy logic;Analytic hierarchy process;Digital nuclear power plants
摘要：
In digital control rooms, situation awareness (SA) reliability has become an important element affecting operator's reliability. In order to establish a more reasonable assessment method of SA reliability under the condition of very lack of data, based on the established influential factor model of SA reliability considering the causality relationship of performance shaping factors (PSFs) in this paper, a fuzzy logic and analytic hierarchy process (AHP)-based method is established to more objectively assess SA reliability. The weight of PSFs is identified using AHP, and a fuzzy logic method is used to simulate the fuzzy assessment and reasoning process of operator's SA reliability, and a standardized method is built to determine the fuzzy rule base of fuzzy reasoning system for SA reliability assessment for reducing the subjectivity and uncertainty of expert judgment. Finally, an example is provided to illustrate the specific application of the proposed method. The results show that the established method takes account of the weight of PSFs and their causal influencing relationship, and the fuzzy logic method used to assess SA reliability can overcome the subjectivity and uncertainty of expert judgment, which makes the assessment results more objective and realistic. Furthermore, the method can be used to get more SA error data and have a wide range of application value.
作者机构：
[张力; 刘雪阳; 吴斯扬] School of Nuclear Science and Technology, University of South China, Hengyang;421001, China;[邹衍华; 洪俊] Institute of Human Factors Engineering & Safety Management, Hunan Institute of Technology, Hengyang;421002, China;[张力] 421001, China <&wdkj&> Institute of Human Factors Engineering & Safety Management, Hunan Institute of Technology, Hengyang
作者机构：
[陈青青; 张力; 胡鸿; 青涛] Institute of Human and Safety Engineering, Hunan Institute of Technology, Hengyang;Hunan;421002, China;[戴立操] College of Nuclear Science and Technology, University of South China, Hengyang;421001, China
通讯机构：
Institute of Human and Safety Engineering, Hunan Institute of Technology, Hengyang, Hunan, China
作者机构：
[陈青青; 张力; 胡鸿; 青涛] Institute of Human and Safety Engineering, Hunan Institute of Technology, Hengyang;Hunan;421002, China;[戴立操] College of Nuclear Science and Technology, University of South China, Hengyang;421001, China
通讯机构：
Institute of Human and Safety Engineering, Hunan Institute of Technology, Hengyang, Hunan, China
作者机构：
[张力; 刘建桥] School of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[邹衍华] Institute of Human Factors and Safety Engineering, Hunan Institute of Technology, Hengyang;421002, China
通讯机构：
Institute of Human Factors and Safety Engineering, Hunan Institute of Technology, Hengyang, Hunan, China
作者机构：
[刘雪阳; 张力] School of Nuclear Science and Technology, University of South China, Hengyang;Hunan;421001, China;[邹衍华] Institute of Human Factors Engineering & Safety Management, Hengyang;421002, China
通讯机构：
School of Nuclear Science and Technology, University of South China, Hengyang, Hunan, China
期刊：
Advances in Intelligent Systems and Computing,2019年778:68-76 ISSN：2194-5357
通讯作者：
Li, Pengcheng
作者机构：
[Jin, Xiao; Li, Pengcheng; Zhang, Li; Li, Xiaofang; Dai, Licao] Univ South China, Human Factor Inst, Hengyang 421001, Hunan, Peoples R China.;[Li, Pengcheng] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
通讯机构：
[Li, Pengcheng] U;Univ South China, Human Factor Inst, Hengyang 421001, Hunan, Peoples R China.;Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
会议名称：
AHFE 2018 International Conference on Human Error, Reliability, Resilience, and Performance, 2018
会议时间：
21 July 2018 through 25 July 2018
会议地点：
Orlando, FL
会议主办单位：
[Li, Pengcheng;Li, Xiaofang;Dai, Licao;Zhang, Li;Jin, Xiao] Univ South China, Human Factor Inst, Hengyang 421001, Hunan, Peoples R China.^[Li, Pengcheng] Univ South China, Sch Nucl Sci & Technol, Hengyang 421001, Hunan, Peoples R China.
会议论文集名称：
Advances in Human Error, Reliability, Resilience, and Performance
关键词：
Digital nuclear power plants;Human factor event report;Performance Influencing Factors;Team situation awareness
摘要：
In the digital main control rooms (MCRs) of nuclear power plants (NPPs), the role and responsibility of operators as well as their communication ways are changed by the digitization of the human-machine interface, which leads to some new team situation awareness (TSA) errors and different error distribution. In order to identify the interaction mechanism among a team during collecting information and consistently understanding the system/component status, an team interaction model is established by field observation, video analysis, operator interview and event report analysis. Furthermore, the model-based TSA error classification is developed and the influencing factors of TSA error are identified. On this basis, a number of human factor event reports are analyzed and combining with statistical analysis to identify the main TSA errors and influencing factors in digital NPPs. It provides theoretical support for the prevention and control of TSA errors.
作者机构：
[李鹏程; 李晓芳; 戴立操; 张力; 青涛; 蒋建军] Human Factor Institute, University of South China, Hengyang;Hunan;421001, China;Institute of Human Factor and Safety Management, Hunan Institute of Technology, Hengyang;421002, China
通讯机构：
Human Factor Institute, University of South China, Hengyang, Hunan, China
