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| 1 | Fault Diagnosis Method Based on System-phenomenon-fault Tree显示文摘The historical records of mechanical fault contain great amount of important information which is useful to identify the similar fault.The current fault diagnosis methods using historical records are inefficient to deal with intuitive application and multicomponent multiphase fault diagnosis.Towards the problem,the rapid and intelligent fault diagnosis method based on system-phenomenon-fault (SPF) tree is proposed.The method begins with the physical system of the fault system,conceives the fault causes as leaves,the fault causes as leaves and the frequentness of fault as the interrelationship,and finally forms the fault tree with structural relationship of administrative subordination and flexible multi-granularity components.Firstly,the forming method of SPF tree is discussed;Secondly some basic definitions as synonymous branch,the tough degree of the branch,the dominant leaf,and the virtual branch are defined;and then,the performances including the merger of the dominant branches keeping dominant,the merger of the synonymous branches keeping dominant were proved.Furthermore,the merging,optimizing and calculating of virtual branch of SPF tree are proposed,the self-learning mechanism including the procedure and the related parameter calculation is presented,and the fault searching method and main fault statistics calculation are also presented based on SPF tree.Finally,the method is applied in the fault diagnosis of the certain type of embedded terminal to demonstrate fault information searching in the condition of the synonymous branch,the virtual branch merging and visual presentation of search results.The application shows that the proposed method is effective to narrow down the scope of searching fault and reduce the difficulty of computing.The proposed method is a new way to resolve the intelligent fault diagnosis problem of complex systems by organizing the disordering fault records and providing intuitive expression and intelligent computing capabilities. | CHEN Guorong YAN Ping YI Runzhong LIU Fei | 2011 | Chinese Journal of Mechanical Engineering2011,24,3: | 6 |
| 2 | Effects of Sampling Conditions on Composition and Emission Characteristics of Volatile Organic Compounds in Process Units from Different Refineries显示文摘This study investigates the effects of sampling conditions on volatile organic compound(VOC)compositions including different flow restrictors,SUMMA volumes,sampling heights,and wind speeds.Results show that at the six sampling heights the concentrations of main VOC species were slightly different,while the wind speed had a greater impact on the VOC composition of source profiles.With the increase of wind speed,the weighted percentage of high-carbon aromatic hydrocarbons was higher.Besides,there was an extremely different profile between the normal production and shutdown conditions of the delayed coking unit.To compare the emission characteristics of VOCs in various process units of the S and the C refineries,the samples were collected from the catalytic cracking unit,the continuous catalytic reforming unit,and the delayed coking unit.In the continuous catalytic reforming unit,C3-C5 alkanes and low-carbon aromatic hydrocarbons were the main components collected from the S and the C refineries,accounting for 67.1%and 34.9%,respectively.For the delayed coking unit,the total weighted percentage of high carbon C6-C12 alkanes was significantly higher than other units in the S and the C refineries,accounting for 30.5%and 24.4%,respectively.In the catalytic cracking unit,the low-carbon C2-C5 alkanes were abundant,and the weighted percentage of propylene was higher.The emission characteristics obtained were consistent with the processing technology of production units.The results indicate that the VOC emission characteristics from the same production unit in different refineries have similarities and significant differences which are related to the technological process.The emission characteristics of VOCs could provide the data support for source apportionment work in the production units. | Feng Yunxia Xiao Anshan Li Bo Dong Rui Jia Runzhong Li Mingjun | 2020 | China Petroleum Processing & Petrochemical Technology2020,22,3: | 3 |
| 3 | Causes of Recurrence of Rice Chilo suppressalis( Walker) in Longyou County and Prevention and Control Measures显示文摘In recent years,the occurrence of rice Chilo suppressalis( Walker) in Longyou County of Zhejiang Province has increased year by year and has become aggravated. This poses a great threat to the safety of rice production. In order to curb the recurrence momentum of rice C. suppressalis,according to the dynamic monitoring and field system survey of rice C. suppressalis in Longyou County since 2015,the causes of the annual increase of rice C. suppressalis in recent years were analyzed,and the recurrence area of C. suppressalis was introduced,and finally some prevention and control measures were put forward. | Ying WANG Yong ZHANG Chenguang ZHANG Runzhong LOU Xinxin XU Xiaowei XU | 2019 | Asian Agricultural Research2019,11,2: | 2 |
| 4 | 美国货运物流管理体制及政策研究显示文摘本文在分析美国货运物流发展基本情况的基础上,从美国交通部、都市规划组织、支持政府和行业决策的研究机构、政产学研合作机构等四个方面阐述了美国货运物流管理体制的构成,并介绍了美国自20世纪90年代货运物流行业放松管制后制定和出台的一些重要的法规政策。从对美国货运物流管理体制和政策的研究剖析中,归纳出三点值得中国学习和借鉴的经验。 | 刘勇凤 李弢 Richard Gluck Tan Runzhong | 2020 | 运输经理世界2020,,2: | 1 |
| 5 | Analysis of azithromycin and relative compound显示文摘 | Lu Runzhong | 1995 | World Notes Antibiot1995,16,2: | 1 |
| 6 | Separation and concentration of sulfonylurea herbicides in milk by ionic‐liquid‐based foam flotation solid‐phase extraction显示文摘 | Liyuan Zhang Bocheng Cao Di Yao Runzhong Yu Changqing Yu Hanqi Zhang Aimin Yu | 2015 | J. Sep. Science2015,,10: | 1 |
| 7 | Determination of triazine herbicides in vegetables by ionic liquid foam floatation solid phase extraction high performance liquid chromatography显示文摘 | Liyuan Zhang Runzhong Yu Zhibing Wang Na Li Hanqi Zhang Aimin Yu | 2014 | Journal of Chromatography B2014,,: | 1 |
| 8 | Divalent cation tolerance protein binds to β-secretase and inhibits the processing of amyloid precursor protein显示文摘The deposition of amyloid-beta is a pathological hallmark of Alzheimer's disease. Amyloid-beta is derived from amyloid precursor protein through sequential proteolytic cleavages by β-secretase (beta-site amyloid precursor protein-cleaving enzyme 1) and γ-secretase. To further elucidate the roles of beta-site amyloid precursor protein-cleaving enzyme 1 in the development of Alzheimer's disease, a yeast two-hybrid system was used to screen a human embryonic brain cDNA library for proteins directly interacting with the intracellular domain of beta-site amyloid precursor protein-cleaving enzyme 1. A potential beta-site amyloid precursor protein-cleaving enzyme 1- interacting protein identified from the positive clones was divalent cation tolerance protein. Immunoprecipitation studies in the neuroblastoma cell line N2a showed that exogenous divalent cation tolerance protein interacts with endogenous beta-site amyloid precursor protein-cleaving enzyme 1. The overexpression of divalent cation tolerance protein did not affect beta-site amyloid precursor protein-cleaving enzyme 1 protein levels, but led to increased amyloid precursor protein levels in N2a/APP695 cells, with a concomitant reduction in the processing product amyloid precursor protein C-terminal fragment, indicating that divalent cation tolerance protein inhibits the processing of amyloid precursor protein. Our experimental findings suggest that divalent cation tolerance protein negatively regulates the function of beta-site amyloid precursor protein-cleaving enzyme 1. Thus, divalent cation tolerance protein could play a protective role in Alzheimer's disease. | Runzhong Liu Haibo Hou Xuelian Yi Shanwen Wu Huan Zeng | 2013 | Neural Regeneration Research2013,8,11: | 1 |
| 9 | Determi- nation of triazine herbicides in vegetables by ionie liquid foam floatation solid phase extraction high performance liq- uid chromatography显示文摘 | Zhang Liyuan Yu Runzhong Wang Zhibing | 2014 | Journal of Chromatography B2014,953,: | 1 |