Risk assessment of high-speed railway CTC system based on improved game theory and cloud model

Purpose-In order to solve the problem of inaccurate calculation of index weights,subjectivity and uncertainty of index assessment in the risk assessment process,this study aims to propose a scientific and reasonable centralized traffic control(CTC)system risk assessment method.Design/methodologylapproach-First,system-theoretic process analysis(STPA)is used to conduct risk analysis on the CTC system and constructs risk assessment indexes based on this analysis.Then,to enhance the accuracy of weight calculation,the fuzzy analytical hierarchy process(FAHP),fuzzy decision-making trial and evaluation laboratory(FDEMATEL)and entropy weight method are employed to calculate the subjective weight,relative weight and objective weight of each index.These three types of weights are combined using game theory to obtain the combined weight for each index.To reduce subjectivity and uncertainty in the assessment process,the backward cloud generator method is utilized to obtain the numerical character(NC)of the cloud model for each index.The NCs of the indexes are then weighted to derive the comprehensive cloud for risk assessment of the CTC system.This cloud model is used to obtain the CTC system's comprehensive risk assessment.The model's similarity measurement method gauges the likeness between the comprehensive risk assessment cloud and the risk standard cloud.Finally,this process yields the risk assessment results for the CTC system.Findings-The cloud model can handle the subjectivity and fuzziness in the risk assessment process well.The cloud model-based risk assessment method was applied to the CTC system risk assessment of a railway group and achieved good results.Originality/value-This study provides a cloud model-based method for risk assessment of CTC systems,which accurately calculates the weight of risk indexes and uses cloud models to reduce uncertainty and subjectivity in the assessment,achieving effective risk assessment of CTC systems.It can provide a reference and theoretical basis for risk management of the CTC system.

Call for papers Journal of Control Theory and Applications Special issue on Wireless sensor networks:from theory to practices and applications

Wireless Sensor Network （WSN） is characterized by the dense deployment of sensor nodes that continuously observe physical phenomenon. The main advantages of WSN include its low cost, rapid deployment, self-organization, and fault tolerance. WSN has received tremendous interests of various research communities,

Call for papers Journal of Control Theory and Applications Special issue on Approximate dynamic programming and reinforcement learning

Approximate dynamic programming (ADP) is a general and effective approach for solving optimal control and estimation problems by adapting to uncertain and nonconvex environments over time.

Paper Analysis of Shanghai Ocean University in Bibliometric Method from Web of Science

The data of this research was mainly collected from the Web of Science (WOS) and Incites database platform, which was filtered and cataloged according to the different platforms. For tracing the change in scientific research at Shanghai Ocean University, make use of Bibliometric analysis to get the image and table of highly cited papers and hot papers. In this study, the scientific aspects in highly cited papers and hot papers, published in the last year in the core collection of Web of Science, were taken as objects, and office software was used as the main tool to carry out bibliometric and figure analysis. From the four aspects to find the difference in these fields, the production of specific fields and cited times is inconsistent. And suggest the department and management adjust the policy and method via elastic personnel and rewards to prompt the advancement of the research fields.

Analysis on cited times of papers published in Neural Regeneration Research

Introduction Publication Name=Neural Regeneration Research （NRR） Timespan=2008-2011. Databases=SCI-EXPANDED, SSCI, A＆HCI, CPCI-S, CPCI-SSH. Web of Science Categories： CELL BIOLOGY （938）, NEUROSCIENCE （938） Document Types： ARTICLE （922）, REVIEW （13）, EDITORIAL MATERIAL （2）, LETTER （1） Search time： 23/06/2011 A total of 938 articles published till the search time in NRR are searched, including 315 papers published in 2008, 185 in 2009, 321 in 2010, and 117 in 2011. Totally 111 papers have been cited and the total number of citations is 171. There are 76 self-citations, and 95 non-self citations, which are scattered in 85 journals. The citation situations are listed as follows.

Games theory and the development of research paper publishing

Along with rapid development of Chinese university, series of disadvantages are brought in research papers publishing. From the study of Games theory, this article tries to find out a way to adjust the rules of the game, to refine the science research environment, improve the quality of research paper, and then realize the sustainable development of Chinese universities.

CiteOpinion: Evidence-based Evaluation Tool for Academic Contributions of Research Papers Based on Citing Sentences

Purpose:To uncover the evaluation information on the academic contribution of research papers cited by peers based on the content cited by citing papers,and to provide an evidencebased tool for evaluating the academic value of cited papers.Design/methodology/approach:CiteOpinion uses a deep learning model to automatically extract citing sentences from representative citing papers;it starts with an analysis on the citing sentences,then it identifies major academic contribution points of the cited paper,positive/negative evaluations from citing authors and the changes in the subjects of subsequent citing authors by means of Recognizing Categories of Moves(problems,methods,conclusions,etc.),and sentiment analysis and topic clustering.Findings:Citing sentences in a citing paper contain substantial evidences useful for academic evaluation.They can also be used to objectively and authentically reveal the nature and degree of contribution of the cited paper reflected by citation,beyond simple citation statistics.Practical implications:The evidence-based evaluation tool CiteOpinion can provide an objective and in-depth academic value evaluation basis for the representative papers of scientific researchers,research teams,and institutions.Originality/value:No other similar practical tool is found in papers retrieved.Research limitations:There are difficulties in acquiring full text of citing papers.There is a need to refine the calculation based on the sentiment scores of citing sentences.Currently,the tool is only used for academic contribution evaluation,while its value in policy studies,technical application,and promotion of science is not yet tested.

A bibliometric analysis of core articles ofinternational nursing research frontiersbased on the Web of Science database

Objective:To review and analyze the basic information and distribution of core articles in the global research frontier of nursing,so as to ascertain the current trend in the field.Methods:A total of 37 highly cited essential science indicator(ESI)papers in the nursing discipline were retrieved,which were compared with the core article collection of the ESI research frontier in January 2019 to understand the current nursing research frontiers.Subsequently,a statistical analysis of the core articles that constituted the nursing research frontiers was performed using a bibliometric method.The analysis was conducted with multiple aspects including the number of core articles,total number of citations,average publication year,issuing country,participating institution,citing paper,journal distribution,and core researcher.Results:At present,the two international research frontiers of nursing are patient-centered care(Research Frontier 1)and missed care(Research Frontier 2).These two frontiers include a total of 12 core articles,6 of which are highly cited Web of Scienceindexed nursing papers.Research Frontier 1 includes three core articles that were cited 389 times.Research Frontier 2 includes nine core articles that were cited 841 times.Articles in the two frontiers were cited by 454 and 841 papers,respectively,most of which are in the United States.In addition,the 12 core articles were published across eight journals,the impact factors of which are all relatively high.Lastly,Research Frontier 1 involves 11 authors,whereas Research Frontier 2 involves 49 authors,of which seven authors have published more than two articles.Conclusions:The core articles in the frontier of international nursing research demonstrate distinctive features in their issuing country/region,journal distribution,and participating institution.Review and analysis of the core articles of international nursing research frontiers can help nursing staff understand the current research hotspots and consequently perform corresponding scientific research to promote the development of the nursing discipline.

2017 Highly Cited Paper Award and Best Reviewer Award of Petroleum Science

Petroleum Science is pleased to announce the winners of the 2017 Highly Cited Paper Award in which we recognize highly cited papers published in our journal between 2015 and 2016.Citation data of papers are based on citations in Web of Science in 2017.Petroleum Science also announces the winners of the 2017 Best Reviewer Award who have made an outstanding contribution in 2017 as reviewer to Petroleum Science.Congratulations and thanks to all the winners!

A Simple Theoretical Approach of Aqueous Solutions of Salts and Organic Solvents in Paper Chromatography

The purpose of this study is to determine the properties of the solvents responsible of the chromatographic phenomenon. A simple and homogeneous system of ascending chromatography on paper is described, allowing varying only one of the factors constituting it. This method made it possible to determine constants by means of a simple equation. The validity of the method is deduced from the good agreement between its mathematical expression and the experimental values obtained.

2016 Highly Cited Paper Award and Best Reviewer Award of Petroleum Science

Petrolezum Science is pleased to announce the winners of the 2016 Highly Cited Paper Award in which we recognize highly cited papers published in our journal between 2014and 2015.Citation data of papers are based on citations in Web of Science in 2016.Petroleum Science also announces the winners of the 2016 Best Reviewer Award who have made an outstanding contribution in 2016 as reviewer to Petroleum Science.Congratulations and thanks to all the winners!The winners of the 2016 Highly Cited Paper Award

基于Web of Science的百篇高被引药物警戒研究的科学计量学分析

目的:利用科学计量学方法分析药物警戒领域中的高被引研究论文,旨在为国内药物警戒研究和实践活动提供参考。方法:计算机检索Web of Science数据库核心合集以搜集被引次数最高的100篇药物警戒论文。来源限制为SCIE和SSCI,论文类型限制为“Article”或者“Review”,语言限制为英语,检索时限为建库至2022年4月7日。利用VOSviewer 1.6.17和CiteSpace 6.1.R1进行统计分析并绘制相关知识图谱。结果:纳入的百篇高被引药物警戒论文均发表于1992—2019年,单篇研究的中位被引次数为155次,最高次数为977次,最低为110次。美、英等发达国家发表的论文数量最多,且它们之间具有密切的合作关系,发文最多的研究机构为斯坦福大学,发文最多的作者为Edwards IR(乌普萨拉监测中心),刊载论文最多的期刊为《Drug Safety》(13篇,13%)。药物警戒高被引论文关注的内容主要包括药品不良反应的信息来源、具体药物或人群的不良反应、不良反应信号检测方法以及具体的不良反应等方面的内容。结论:欧美等发达国家在药物警戒领域处于领先水平且彼此合作密切,药品不良反应的相关内容是药物警戒领域的主要研究热点,上述发现可为我国的药物警戒研究与实践活动提供一定参考。

A COGNITIVE AND MEMETIC SCIENCE APPROACH TO ANALYZE THE HUMAN FACTORS IN PREDICTING THE EVOLUTION OF PAPER TECHNOLOGY AND PRODUCTS IN THE 21^(sT) CENTURY

21世纪制纸技术。

基于单篇高被引数据论文的多层级数据再利用主题差异分析

[目的/意义]在当今“数据密集型”时代,科学数据的重要性不断凸显,深入研究数据论文的利用价值有助于推动科学数据的开放和共享。[方法/过程]文章以单篇高被引论文为研究对象,根据对其不同的引证层级构建文献集合,通过对两个引证文献集合论文的关键词统计和聚类分析,对其主题团簇的差异性进行对比和分析,进而揭示数据论文的多层级数据再利用和特征演化情况。[结果/结论]研究发现,不同层级的数据再利用扩展出了不同细度的研究主题,体现了数据论文知识扩散的模式和规律。

《西北农林科技大学学报(社会科学版)》2013-2022年高被引论文特征分析

利用中国知网引文数据库的资料,以2013-2022年《西北农林科技大学学报(社会科学版)》(以下简称《学报》)刊发文章总量的5%为标准遴选出的高被引论文作为研究对象,对高被引论文的栏目/专题、基金项目、高被引论文作者、第一作者机构和排名前20的高被引论文进行了分析,为组稿、约稿和筛选优质稿源提供依据。结果显示,《学报》2013-2022年共刊发论文1266篇,总被引频次为32051次,从中遴选出高被引论文63篇,高被引论文总被引频次为8308次,占总被引频次的25.92%。63篇高被引论文均属学报特色栏目——“三农”问题研究的下设专题论文,此栏目的高被引论文占到了73.02%,“精准扶贫”“乡村振兴”“农村电商”3个专题高被引论文表现抢眼。在高被引论文获助的基金项目中,国家社科基金资助20项,占31.75%,是获助的主体;国家自然科学基金资助论文居于第2位。高被引论文中作者的职称(学历)居前3位的分别是博士研究生、教授(研究员)、副教授(副研究员),其中博士研究生的高被引论文占到了总数的38.10%,表明其已经成为学术研究的主力军;发表2篇以上高被引论文的作者有3位。来源论文机构总被引频次的排序前5名为西北农林科技大学、中国农业大学、华中农业大学、华中科技大学和西安交通大学。被引频次最多的前20篇论文的统计结果与前面的统计情况相吻合,值得注意的是“精准扶贫”和“乡村振兴”两个专题的高被引论文占了几近一半。鉴于以上结果,今后应继续做好选题策划,持续加强“三农”问题研究特色栏目建设。组稿约稿中要扩大核心作者群,积极关注青年科技工作者研究成果,打造高水平服务团队,提升论文学术水平;大力推进新媒体融合出版,提升学术成果传播速度。

出版学科高被引论文特征分析:研究方法、研究主题与知识扩散

对出版学科9种中文社会科学引文索引(CSSCI)来源期刊2013—2023年刊载的441篇高被引论文的研究方法、研究主题和知识扩散特征进行分析,研究发现:高被引论文较常用的研究方法包括理性思辨法、案例分析法、调查法、内容分析法等,同时,深度统计分析法、计量分析法等方法也被用于研究出版领域的问题,出版学科研究方法呈现多样化的趋势,开放采纳各种研究方法;出版学科研究主题特色鲜明,回应时代和行业关注,研究方法对学科研究主题有一定影响;高被引论文知识扩散范围较广,知识扩散强度在不同学科间存在差异,多元化研究方法有利于提升出版学科对其他学科的影响,加强学科间的知识交流。

高热故障下变压器油纸绝缘系统的产气机理研究

针对高热故障下超/特高压变压器内部绝缘系统状态变化和产气机理不清晰而严重制约变压器状态分析诊断的问题,本文基于热焓理论与仿真模拟手段相结合的方式对超/特高压变压器高热故障下油纸绝缘系统特征气体的生成路径与油纸绝缘系统的裂解机理开展研究。依据热焓理论得到气体的生成机理,并利用仿真模拟验证本文所提出的产气机理与路径。结果表明:高热故障下油纸绝缘系统中链烷烃要比环烷烃和双环芳香烃更容易发生裂解,各组分裂解生成特征气体的速率从大到小依次为纤维素、链烷烃、环烷烃、双环芳香烃。根据气体生成能可知,特征气体CH_4和C_(2)H_6最容易生成,C_(2)H_(2)最难生成,可通过特征气体在油纸绝缘系统中的生成速率判断高热故障的严重程度。

医学院校高被引论文多源数据评价指标相关性研究

目的/意义了解医学院校高被引论文在不同数据库中多源评价指标相关性,为文献资源发现、利用、评估提供参考。方法/过程以2013—2023年首都医科大学高被引论文为研究对象,分析其在H1 Connect、Dimensions、ESI、Web of Science、InCites、SciVal数据库中的38个评价指标,对代表性指标,专利、政策引用指标,浏览使用指标,相对指标,期刊指标,被引频次,Altmetric指标分别进行相关性分析。结果/结论各组相似指标具有相对较高相关性,个别指标如加权星级和微博提及数与大多数不同平台指标没有显著相关性。

信息资源管理学科期刊年度选题指南与发表论文的匹配度

探究期刊的年度选题指南与所发表论文之间的匹配度及其影响因素有利于提高期刊办刊质量,提升学术引领力。文章选取信息资源管理学科13种期刊2017-2021年间的选题指南及2017-2022年间发表论文11,836篇,分别构建年度选题指南关键词数据集和论文关键词数据集,利用Python编写相应程序探究两者之间的匹配度;基于计划行为理论构建影响因素,利用SPSS软件分析这些因素对匹配度的影响。研究发现:信息资源管理学科期刊当年选题指南与相邻两年内发表论文的匹配度较低,均在0.5以下;当年选题指南与相邻两年间发表论文的匹配度存在差异,第一年的匹配度高于第二年的匹配度;以下因素与匹配度呈显著的相关关系,按影响程度由大到小依次为办刊时间、基金论文比、载文量,而期刊栏目数、复合影响因子、出版周期及论文年均篇幅长度与匹配度无关。