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Construction of problem list coding system for the whole life cycle of sea island supervision
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作者 WANG Na JI Dawei +5 位作者 LI Jin ZHAO Jinxia ZHENG Fangyuan WANG Jin TAN Lun GAO Yikang 《Marine Science Bulletin》 2025年第1期50-65,共16页
The code of the list of sea and island problems is the unique identification code of the regulatory files,which is accompanied by the whole life cycle of the regulatory"discovery,verification and disposal".S... The code of the list of sea and island problems is the unique identification code of the regulatory files,which is accompanied by the whole life cycle of the regulatory"discovery,verification and disposal".Standardized coding of problems found by supervision and tracking and recording the whole life cycle of supervision can quickly guide supervisors to find problems,identify problems,initiate responses and carry out follow-up disposal,which is a reflection of whole-process management of supervision.Combining with sea and island regulatory systems and mechanisms,combed the supervision business flow,divides the supervision link,based on the existing coding system,from the Angle of supervision refinement,puts forward a whole lifetime oriented regulatory system of sea and island issues list for coding,coding through to find and stop and disposal of the three links all process application scenarios,The implementation of the whole business"one code"association,the whole process of"one code"management,practice verification shows the effectiveness of the method,compared with the original coding rules for the supervision of all links and results reflect more intuitive,comprehensive,can be better applied to the practice of supervision. 展开更多
关键词 Marine supervision sea and island supervision coding fine regulation
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Practical Exploration and Optimization Path of Teaching Supervision Mechanisms in Colleges and Universities: Analysis of Teaching Quality Data in the Autumn Semester of 2024 at School A, University Z
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作者 Shantong Cai 《Journal of Contemporary Educational Research》 2025年第3期217-225,共9页
Teaching quality is the core guarantee for universities to achieve their talent cultivation goals,and teaching supervision,as an important means of monitoring teaching quality,runs through the entire process of teachi... Teaching quality is the core guarantee for universities to achieve their talent cultivation goals,and teaching supervision,as an important means of monitoring teaching quality,runs through the entire process of teaching management.Based on the teaching quality report of School A at University Z for the autumn semester of 2024,this paper systematically analyzes the current situation,problems,and causes of the teaching supervision mechanism through multi-dimensional data analysis of expert classroom observation,peer evaluation,and classroom feedback.On this basis,combined with the application prospects of artificial intelligence technology,it proposes paths to optimize the teaching supervision mechanism,including improving the classroom observation feedback mechanism,increasing supervision coverage,and strengthening the linkage between feedback and teaching reform,providing practical experience and theoretical support for improving teaching quality in universities. 展开更多
关键词 Teaching supervision Teaching supervision mechanism Multi-dimensional quality evaluation Teacher classification development
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Integration of Problem-Based Learning and Case-Based Learning in Chinese Endodontics Standard Resident Training
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作者 Lin Yang Lei Dou +2 位作者 Wanlu Lu Jie Xu Yi Shu 《Journal of Contemporary Educational Research》 2025年第10期329-334,共6页
As the most critical part of post-graduate education,the Chinese government launched Standard Resident Training in 2013 to solve the regional inequality of medical quality and meet the increasing social requirement fo... As the most critical part of post-graduate education,the Chinese government launched Standard Resident Training in 2013 to solve the regional inequality of medical quality and meet the increasing social requirement for better medical service.We integrated problem-based learning(PBL)and case-based learning(CBL)in the Endodontics Standard Resident Training.By evaluating with objective parameters including theoretical knowledge and clinical practice skill,and subjective parameters including questionnaire,it was found that PBL+CBL played a positive role in endodontic resident training with a significant difference(P<0.05).This combined training model is instructive for China’s resident training,and this result can provide a rudimentary reference to current postgraduate teaching reform. 展开更多
关键词 Problem-based learning case-based learning Postgraduate education Standard Resident Training ENDODONTICS
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Research on the Development of Small Loan Industry Under the Background of Strict Supervision
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作者 Jiahui Xue 《Proceedings of Business and Economic Studies》 2025年第2期260-266,共7页
In recent years,the microloan industry has faced unprecedented challenges under strict regulatory policies.The adjustment of regulatory policies,such as raising the entry threshold and strengthening risk management,ha... In recent years,the microloan industry has faced unprecedented challenges under strict regulatory policies.The adjustment of regulatory policies,such as raising the entry threshold and strengthening risk management,has significantly increased the compliance cost of small loan companies and limited their business operations.The industry faces major challenges such as narrow funding sources,increased difficulty in risk control,and intensified market competition.In response to these challenges,the microfinance industry actively explores the path of transformation and innovation,including the innovation of business models,the deepening of science and technology application,and the construction of cooperation and win-win mechanisms.At the same time,strengthening internal compliance management,actively responding to regulatory policy changes,and improving the level of industry self-discipline have become the key to the development of industry compliance.This paper deeply analyzes the development of the microfinance industry under strict supervision and puts forward corresponding countermeasures and suggestions. 展开更多
关键词 Strict supervision Small loans Industry challenges Compliance development
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Adaptive multi-stable stochastic resonance assisted by neural network and physical supervision
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作者 Xucan Li Deming Nie +1 位作者 Ming Xu Kai Zhang 《Chinese Physics B》 2025年第5期210-219,共10页
Stochastic resonance can utilize the energy of noise to enhance weak frequency characteristic.This paper proposes an adaptive multi-stable stochastic resonance method assisted by the neural network(NN)and physics supe... Stochastic resonance can utilize the energy of noise to enhance weak frequency characteristic.This paper proposes an adaptive multi-stable stochastic resonance method assisted by the neural network(NN)and physics supervision(directly numerical simulation of the physical system).Different from traditional adaptive algorithm,the evaluation of the objective function(i.e.,fitness function)in iteration process of adaptive algorithm is through a trained neural network instead of the numerical simulation.It will bring a dramatically reduction in computation time.Considering predictive bias from the neural network,a secondary correction procedure is introduced to the reevaluate the top performers and then resort them in iteration process through physics supervision.Though it may increase the computing cost,the accuracy will be enhanced.Two examples are given to illustrate the proposed method.For a classical multi-stable stochastic resonance system,the results show that the proposed method not only amplifies weak signals effectively but also significantly reduces computing time.For the detection of weak signal from outer ring in bearings,by introducing a variable scale coefficient,the proposed method can also give a satisfactory result,and the characteristic frequency of the fault signal can be extracted correctly. 展开更多
关键词 stochastic resonance multi-stable physical supervision neural network fault diagnosis
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Observation on the Application of Case-based Three-dimensional Teaching Method Guided by Evidence-Based Thought in the Teaching of Intern Nurses in the Rehabilitation Department
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作者 Qiurong Mi 《Journal of Clinical and Nursing Research》 2025年第11期199-208,共10页
Objective:To explore the effect of implementing the case-based three-dimensional teaching method guided by evidence-based thinking in the teaching of trainee nurses in the rehabilitation department.Method:Eighty nursi... Objective:To explore the effect of implementing the case-based three-dimensional teaching method guided by evidence-based thinking in the teaching of trainee nurses in the rehabilitation department.Method:Eighty nursing practice nurses who were conducting clinical practice learning in the Rehabilitation Department of Deyang People’s Hospital from June 2024 to May 2025 were selected as the research subjects.By using the controlled grouping method,the practice nurses from June 2024 to November 2024 were taken as the control group(n=40).The period from December 2024 to May 2025 was taken as the experimental group(n=40 students),the control group was taught by traditional teaching methods,and the experimental group was taught by evidence-based nursing combined with case teaching method.The clinical thinking ability,autonomous learning ability,exit assessment scores and teaching satisfaction of the two groups of intern nurses at the time of leaving the department were compared.Results:At the time of leaving the department,the scores of each dimension and the total score of clinical thinking ability of the intern nurses in the experimental group were higher than those in the control group(t=9.268,6.354,6.199)9.694,all p<0.05).At the time of leaving the department the scores of each dimension and the total score of the autonomous learning ability of the intern nurses in the experimental group were higher than those in the control group(t=6.998,7.333,5.503,5.977,22.244)all p<0.05).At the time of leaving the department the theoretical assessment scores and operational assessment scores of the experimental group were both higher than those of the control group(t=14.546,11.676,all p<0.05).At the time of graduation,the teaching satisfaction of the experimental group was higher than that of the control group(χ^(2)=7.314,p<0.05.Conclusion:The adoption of the case-based three-dimensional teaching.Rehabilitation method guided by the evidence-based ideology during the teaching process can effectively improve the clinical thinking ability,autonomous learning ability,departmental assessment results and teaching satisfaction of the intern nurses in the rehabilitation department,which is worthy of reference. 展开更多
关键词 Nursing intern Evidence-based thinking case-based multidimensional teaching method Clinical thinking ability Self-learning ability
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The Impact of Vicarious Abusive Supervision on Third-Party’s Self-Efficacy and Task Performance:The Moderating Role of Promotion Focus in Unethical Leadership Contexts
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作者 LI Yuxuan ZHOU Yuqin +2 位作者 MI Shufei HUANG Hancheng CHEN Wenhua 《Chinese Business Review》 2025年第2期69-85,共17页
Drawing upon self-determination theory,this study examines the effects of vicarious abusive supervision on third-party’s self-efficacy and task performance within organizational contexts.Data were collected via surve... Drawing upon self-determination theory,this study examines the effects of vicarious abusive supervision on third-party’s self-efficacy and task performance within organizational contexts.Data were collected via surveys from 337 employees across diverse organizations.The results indicate that vicarious abusive supervision significantly undermines both self-efficacy and task performance among employees who are indirectly exposed to such behavior but not directly targeted.Furthermore,self-efficacy serves as a mediator between vicarious abusive supervision and task performance;however,this mediating effect is attenuated for employees with a high promotion focus.These findings provide valuable theoretical and practical insights,particularly in the domain of organizational behavior,by emphasizing the critical role of promotion focus in mitigating the negative effects of vicarious abusive supervision.This research contributes to the organizational behavior literature by shifting the focus from the traditional supervisor-subordinate dynamic to a third-party perspective,thereby enriching our understanding of how vicarious abusive supervision impacts employees within organizational settings.The study underscores the importance of self-efficacy and promotion focus as key factors in unethical leadership contexts. 展开更多
关键词 vicarious abusive supervision task performance SELF-EFFICACY promotion focus third-party
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Do coping strategies play a role? Examining the effects of abusive supervision and workengagement on employees’ helping behavior
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作者 Anthony Frank Obeng Yongyue Zhu 《Journal of Psychology in Africa》 2025年第4期505-512,共8页
The study examined work engagement and coping strategies in the relationship between abusive supervision and helping behaviors among hospitality employees.Participants were 386 frontline hospitality employees(50.8%fem... The study examined work engagement and coping strategies in the relationship between abusive supervision and helping behaviors among hospitality employees.Participants were 386 frontline hospitality employees(50.8%females;38.9%with 1–5 years of experience;78.3%in the 18–40 age range).They self-reported coping strategies,abusive supervision,work engagement,and helping behaviors.Structural equation model results showed that abusive supervision to be associated with lower employee helping behaviors.Work engagement was higher with employees’helping behaviors.Engaged employees would unleash helping behaviors.Work engagement mediated the relationship between abusive supervision and helping behaviors,lowering the abusive supervision risk.Finally,avoidance of contact exacerbated the moderated abusive supervision–work engagement relationship for lower work engagement,while support-seeking and reframing exerted no moderation role.Findings suggest that avoiding an immediate supervisor exacerbates abusive supervision.Hence,applying behavior-based interviews when hiring supervisors would be of strategic advantage to employees’productivity. 展开更多
关键词 abusive supervision work engagement coping strategies employees’helping behavior
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Application of Artificial Intelligence Technology in Teaching Supervision for Vocational Education
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作者 Zhengquan Liu Cong Peng Yirong Liu 《Journal of Contemporary Educational Research》 2025年第1期54-59,共6页
This study explores the application of artificial intelligence-based teaching supervision systems in vocational education,addressing challenges in traditional teaching and supervision.The system leverages real-time mo... This study explores the application of artificial intelligence-based teaching supervision systems in vocational education,addressing challenges in traditional teaching and supervision.The system leverages real-time monitoring,behavior recognition,and data analysis to enhance teaching quality and management efficiency.A case study demonstrates significant improvements in student engagement,discipline,and personalized learning outcomes,with classroom interaction rates increasing by 25%and discipline issues decreasing by 40%.Despite challenges in accuracy,data storage,and ethical concerns,the integration of advanced technologies like virtual reality and blockchain offers promising potential for intelligent,data-driven educational models and quality improvement. 展开更多
关键词 AI-based teaching supervision Vocational education Real-time monitoring Behavior recognition Datadriven education
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Case-based reasoning of operation strategies recommendation for UAV swarm
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作者 HUANG Meigen WANG Tao +3 位作者 JING Tian YANG Song ZHOU Xin HE Hua 《Journal of Systems Engineering and Electronics》 2025年第6期1548-1561,共14页
Aiming at the characteristics of autonomy,confrontation,and uncertainty in unmanned aerial vehicle(UAV)swarm operations,case-based reasoning(CBR)technology with advantages such as weak dependence on domain knowledge a... Aiming at the characteristics of autonomy,confrontation,and uncertainty in unmanned aerial vehicle(UAV)swarm operations,case-based reasoning(CBR)technology with advantages such as weak dependence on domain knowledge and efficient problem-solving is introduced,and a recommendation method for UAV swarm operation strategies based on CBR is proposed.Firstly,we design a universal framework for UAV swarm operation strategies from three dimensions:operation effectiveness,time,and cost.Secondly,based on the representation of operation cases,certain,fuzzy,interval,and classification attribute similarity calculation methods,as well as entropybased attribute weight allocation methods,are suggested to support the calculation of global similarity of cases.This method is utilized to match the source case with the most similarity from the historical case library,to obtain the optimal recommendation strategy for the target case.Finally,in the form of red blue confrontation,a UAV swarm operation strategy recommendation case is constructed based on actual battle cases,and a system simulation analysis is conducted.The results show that the strategy given in the example performs the best in three evaluation indicators,including cost-effectiveness,and overall outperforms other operation strategies.Therefore,the proposed method has advantages such as high real-time performance and interpretability,and can address the issue of recommending UAV swarm operation strategies in complex battlefield environments across both online and offline modes.At the same time,this study could also provide new ideas for the selection of UAV swarm operation strategies. 展开更多
关键词 case-based reasoning(CBR) unmanned aerial vehicle(UAV)swarm operation strategy mixed retrieval
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Distant Supervision方法中对齐数据的聚类去噪 被引量:2
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作者 朱兆龙 欧阳丹彤 叶育鑫 《吉林大学学报(理学版)》 CAS CSCD 北大核心 2014年第2期280-284,共5页
基于聚类和寻找表达语义关系的句子模式,提出一种基于聚类去噪的distant supervision方法,解决了传统distant supervision方法在知识库和文本集对齐阶段会引入噪声数据的问题,得到了一种改进的distant supervision方法.实验结果表明,该... 基于聚类和寻找表达语义关系的句子模式,提出一种基于聚类去噪的distant supervision方法,解决了传统distant supervision方法在知识库和文本集对齐阶段会引入噪声数据的问题,得到了一种改进的distant supervision方法.实验结果表明,该方法可有效提高关系抽取任务的准确率. 展开更多
关键词 关系抽取 聚类 DISTANT supervision方法 去噪
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Key Points in the Supervision of Road Landscaping Project——A Case Study of the South 3^(rd) Ring Road in Yanta District of Xi'an City,China 被引量:1
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作者 弓弼 魏代谋 《Journal of Landscape Research》 2011年第6期71-74,共4页
Characteristics of road landscaping were analyzed,as a kind of "linear" landscaping,it could be classified into urban street landscaping,urban ring road and expressway landscaping.Differences between road la... Characteristics of road landscaping were analyzed,as a kind of "linear" landscaping,it could be classified into urban street landscaping,urban ring road and expressway landscaping.Differences between road landscaping projects and other garden landscaping projects or construction projects were analyzed.Landscaping project for the South 3rd Ring Road of Xi'an City(in Yanta District)was taken for an example to summarize construction experience,discuss present conditions and features of garden landscaping supervision in China.The artistic and physiological properties of garden landscaping,as well as the supervision during maintenance period were stressed,but it was also pointed out that garden landscaping supervision in China was actually not given sufficient attention.On this basis,key points in the supervision of road landscaping project were proposed:understanding design ideas,selection of landscape plants,quality control of concealed works,prevention and control of diseases and insects,construction safety management and overall image;only by effectively implementing these key points,a high-quality road landscaping project could be realized to improve the image of a city and beautify its environment. 展开更多
关键词 ROAD LANDSCAPING project Construction supervision The SOUTH 3rd RING ROAD of Xi’an
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IMPROVED AERODYNAMIC APPROXIMATION MODEL WITH CASE-BASED REASONING TECHNIQUE FOR MDO OF AIRCRAFT
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作者 白振东 刘虎 +1 位作者 柴雪 武哲 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI 2008年第3期187-193,共7页
To increase the efficiency of the multidisciplinary optimization of aircraft, an aerodynamic approximation model is improved. Based on the study of aerodynamic approximation model constructed by the scaling correction... To increase the efficiency of the multidisciplinary optimization of aircraft, an aerodynamic approximation model is improved. Based on the study of aerodynamic approximation model constructed by the scaling correction model, case-based reasoning technique is introduced to improve the approximation model for optimization. The aircraft case model is constructed by utilizing the plane parameters related to aerodynamic characteristics as attributes of cases, and the formula of case retrieving is improved. Finally, the aerodynamic approximation model for optimization is improved by reusing the correction factors of the most similar aircraft to the current one. The multidisciplinary optimization of a civil aircraft concept is carried out with the improved aerodynamic approximation model. The results demonstrate that the precision and the efficiency of the optimization can be improved by utilizing the improved aerodynamic approximation model with ease-based reasoning technique. 展开更多
关键词 AIRCRAFT aerodynamic approximation model case-based reasoning multidisciplinary optimization(MDO)
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基于主题模型的中文Distant Supervision噪声标注识别方法 被引量:1
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作者 刘绍毓 李弼程 +2 位作者 周杰 席耀一 唐浩浩 《信息工程大学学报》 2016年第3期303-308,共6页
针对Distant Supervision关系抽取方法训练语料存在大量噪声的问题,提出一种基于主题模型的噪声标注识别方法。该方法首先分析了中文Distant Supervision实体关系抽取方法面临的关系句子实例结构复杂的问题,然后利用自定义的模式以及模... 针对Distant Supervision关系抽取方法训练语料存在大量噪声的问题,提出一种基于主题模型的噪声标注识别方法。该方法首先分析了中文Distant Supervision实体关系抽取方法面临的关系句子实例结构复杂的问题,然后利用自定义的模式以及模式聚类实现模式表示与聚合,最后使用主题模型识别噪声标注。实验结果表明,文章方法能有效识别噪声标注,用滤除噪声标注后的数据训练实体关系抽取模型,实验证明经过噪声滤除后实体关系抽取性能得到显著改善。 展开更多
关键词 DISTANT supervision 关系抽取 噪声标注识别 主题模型 关系模式
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CASE-BASED PRODUCT CONFIGURATION AND REUSE IN MASS CUSTOMIZATION 被引量:40
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作者 Wang Shiwei Tan Jianrong +2 位作者 Zhang Shuyou Wang Xin He Chenqi State Key Laboratory of CAD&CG,Zhejiang University,Hangzhou 310027, China 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2004年第2期233-236,252,共5页
The increasing complexity and size of configuration knowledge bases requres the provisionof advanced methods supporting the development of the actual configuration process and design reuse.A new framework to find a fe... The increasing complexity and size of configuration knowledge bases requres the provisionof advanced methods supporting the development of the actual configuration process and design reuse.A new framework to find a feasible and practical product configuration method is presented in masscustomization. The basic idea of the appoach is to integrate case-based reasoning (CBR) with a con-straint satisfaction problem(CSP). The similarity measure between a crisp and range is also given,which is common in case retrieves. Based on the configuration model, a product platform and customerneeds, case adaptation is carried out with the repair-based algorithm. Lastly, the methodology in theelevator configuration design domain is tested. 展开更多
关键词 case-based reasoning Product configuration Mass customization REUSE
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Problems of Rural Food Safety and Strategies of Constructing Supervision System 被引量:7
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作者 XIAO Yue-qiang 《Asian Agricultural Research》 2011年第7期54-57,79,共5页
This paper expounds the practical necessity of constructing diversified rural food safety supervision system as follows: it is the necessary requirements of guaranteeing people's health and life safety; it is an i... This paper expounds the practical necessity of constructing diversified rural food safety supervision system as follows: it is the necessary requirements of guaranteeing people's health and life safety; it is an important component of governmental function of social management and the logical extension of administrative responsibilities; it is the basis of maintaining order of rural society and constructing harmonious society. The main problems existing in the supervision of rural food safety are analyzed as follows: first, the legislative work of rural food safety lags behind to some extent; second, the supervision of governmental departments on rural food safety is insufficient; third, the industrial supervision mechanism of rural food security is not perfect; fourth, the role of rural social organizations in supervising food safety is limited; fifth, the farmers' awareness of food safety supervision is not strong. Based on these problems, the targeted strategies of constructing diversified rural food safety supervision system are put forward as follows: accelerate the legislation of rural food safety, and ensure that there are laws to go by; give play to the dominant role of government, and strengthen administrative supervision on rural food safety; perfect industrial convention of rural food safety, and improve industrial supervision mechanism; actively support the fostering of social organizations, and give play to the role of supervision of organizations; cultivate correct concept of rights and obligations of farmers, and form awareness of food safety supervision. 展开更多
关键词 Rural food safety supervision Main problems System construction China
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Research on effectiveness of coal mine safety supervision system reform on three types of collieries in China 被引量:7
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作者 Quanlong Liu Xinchun Li Fuyuan Guan 《International Journal of Coal Science & Technology》 EI CAS 2014年第3期376-382,共7页
Coal mine safety supervision system plays an important role in the coal mine safety management in China.However,the current supervision system is established on the basis of learning the advanced experience from other... Coal mine safety supervision system plays an important role in the coal mine safety management in China.However,the current supervision system is established on the basis of learning the advanced experience from other developed countries.It needs to be further improved according to national conditions.Therefore,the effectiveness of coal mine safety supervision system reform on three types of collieries are assessed by using time series analysis method based on comparative analysis of the supervision system before and after the reform in this paper.The regression results show that the structural reform is not conductive to the improvement of coal mine safety situation in the short term,but conductive significantly in the long term.Specifically,the effects in township coal mines are more significant than stateowned key coal mines in the long run,but negative effects also exist in the short term.The negative effects in state-owned key coal mines are non-significant compared with township coal mines.Moreover,the regression results are analyzed from the aspects of the closure policy of illegal small township coal mines at the end of 1998 and shortage of the new supervision system.Finally,the suggestions on improving the new supervision system are put forward based on the above analysis. 展开更多
关键词 Coal mine safety supervision Time series analysis Sinuctural reform Death rate per million tonnes Effectiveness of supervision
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Endpoint temperature prediction of molten steel in RH using improved case-based reasoning 被引量:4
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作者 Kai Feng Hong-bing Wang +1 位作者 An-jun Xu Dong-feng He 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2013年第12期1148-1154,共7页
An improved case-based reasoning (CBR) method was proposed to predict the endpoint temperature of molten steel in Ruhrstahl Heraeus (RH) process. Firstly, production data were analyzed by multiple linear regressio... An improved case-based reasoning (CBR) method was proposed to predict the endpoint temperature of molten steel in Ruhrstahl Heraeus (RH) process. Firstly, production data were analyzed by multiple linear regressions and a pairwise comparison matrix in analytic hierarchy process (AHP) was determined by this linear regression's coefficient. The weights of various influencing factors were obtained by AHP. Secondly, the dividable principles of case base including "0-1" and "breakpoint" were proposed, and the case base was divided into several homogeneous parts. Finally, the improved CBR was compared with ordinary CBR, which is based on the even weight and the single base. The results show that the improved CBR has a higher hit rate for predicting the endpoint temperature of molten steel in RH. 展开更多
关键词 STEELMAKING DEGASSING case-based reasoning analytic hierarchy process TEMPERATURE prediction
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Design System of the Two-step Gear Reducer on Case-based Reasoning 被引量:7
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作者 JI Aimin HUANG Quansheng +1 位作者 XU Huanmin CHEN Zhengming 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2009年第5期671-679,共9页
The design of the two-step gear reducer is a tedious and time-consuming process. For the purpose of improving the efficiency and intelligence of design process, case-based reasoning(CBR) technology was applied to th... The design of the two-step gear reducer is a tedious and time-consuming process. For the purpose of improving the efficiency and intelligence of design process, case-based reasoning(CBR) technology was applied to the design of the two-step gear reducer. Firstly, the current design method for the two-step gear reducer was analyzed and the principle of CBR was described. Secondly, according to the characteristics of the reducer, three key technologies of CBR were studied and the corresponding methods were provided, which are as follows: (a) an object-oriented knowledge representation method, (b) a retrieval method combining the nearest neighbor with the induction indexing, and (c) a case adaptation algorithm combining the revision based on rule with artificial revision. Also, for the purpose of improving the credibility of case retrieval, a new method for determining the weights of characteristics and a similarity formula were presented, which is a combinatorial weighting method with the analytic hierarchy process(AHP) and roughness set theory. Lastly, according to the above analytic results, a design system of the two-step gear reducer on CBR was developed by VC++, UG and Access 2003. A new method for the design of the two-step gear reducer is provided in this study. If the foregoing developed system is applied to design the two-step gear reducer, design efficiency is improved, which enables the designer to release from the tedious design process of the gear reducer so as to put more efforts on innovative design. The study result fully reflects the feasibility and validity of CBR technology in the process of the design of the mechanical parts. 展开更多
关键词 two-step gear reducer case-based reasoning(CBR) weights of characteristics SIMILARITY
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