Papers by Keyword: Risk Factor

Paper TitlePage

Authors: Shu Chen Hsu, Tien Chin Wang, Chao Yen Wu, Li Li
Abstract: When the school decides to implement the RFID campus-safety system, the administrators always encounter internal and external risk items or difficulties which they know even they don’t know. This study therefore proposes an analytic hierarchy model to help the administrators understand the critical risk factors influence the RFID campus-safety system initiation, and an aggregative risk degree is indicated which risk grade they are in. The importance weights of risk factors and possible occurrence ratings of four risk grade (high-risk, medium-risk, low-risk and none-risk) are determined by using consistent fuzzy preference relations. The relative priority weights of evaluators are taken into consideration at the same time and obtained by simple additive weighting method. By multiplying the importance weights of risk factors, possible occurrence ratings of risk grades and the relative priority weights of evaluators, the aggregative risk degree of implementing RFID campus-safety system.
1800
Authors: Jian Lan Zhou, Zhi Yu Sun, Da Wei Tang
Abstract: It is of great necessity to carry out safety assessment of high risk operations in hydroelectric projects. We analyze the key problems of safety assessment of high risk operations. Specifically, a questionnaire can be designed by applying the method of Failure Mode and Effects Analysis (FMEA) firstly; then the factors and consequences of risks in such operations can be generated by the questionnaire and interviews; further, the relationship among those factors can be determined based on statistical analysis, and a comparison matrix of Analytic Network Process can be constructed accordingly to verify and modify the model for safety assessment; finally, based on the outcome of safety assessment, the weak point in the hydroelectric project can be revealed and monitor, so that the safety of the project can be improved.
148
Authors: Jian Lan Zhou, Li Fang Qin, Zhi Yu Sun
Abstract: In the process of the enterprise's production, safety is the key concerned matter. Hydroelectric project construction is the industry with frequent accidents; these accidents have great influences to the society, so the effective measures are taken to prevent accidents and thus change the management style from “post processing” to “predictive control”. The accidents data of objects striking of Xiluodu projects in the year of 2004 to 2006 are analyzed, all the factors causing the accidents are determined, and the factors are analyzed qualitatively and quantitatively analyzes with Bayesian network method, finally the safety management program is determined to guide the safety operations. The bad condition of geological environment has the greatest posterior probability; therefore, it is a sensitive factor that might cause the objects striking accidents. More attention should be paid to the geological environment when preventing accidents.
179
Authors: Qin Jie Xiao, Zhi Dong Zhu, Rui Fang Mou
Abstract: Railway transportation safety management must adhere to the approach of safety and prevention first. The transport of dangerous goods should be paid more attention as a particularly important part. This paper made use of fault tree analysis to research and analyze the risk factors of dangerous goods LPG which may explode in the rail transport. The analysis was made from two aspects of chemistry and physics, then the minimal cut sets and structure importance of the specific factors which may cause explosion accidents are solved, and the importance of each factor is analyzed and sorted on the calculated results. Based on the above method, measures of LPG rail transport explosion prevention were proposed.
3696
Authors: Zuzana Szabova, Karol Balog, Michal Belcik
Abstract: The aim of contribution was to assess the activity of a welder in small enterprise oriented to manufacture of weldments from recycled materials from ergonomic viewpoint by application of two methods, namely Quick Exposure Check (QEC) and Strain Index (SI). Suitability of application of individual methods for the welder ́s works is compared, regarding the aspects of speed, analysis complexity and relevance of the results achieved. Measures for improving the workplace state from the viewpoint of ergonomics and preventing the occurrence of the work-related musculoskeletal disorders (WMSDs) are discussed.
395
Authors: Wen Jing Guo, Yong Ren Chen, Yong Bo Yang, Gao Feng Qu, Dong Yu Liu, Qiu Yang Dong
Abstract: Parachuting injuries among cadet pilots often occur because they undergo extensive training within a short period of time. To explore the injury mechanism and to prevent injuries, this paper investigated the injury risk factors for the military parachuting of cadet pilots. A prospective study of static line parachute descents by Chinese Air Force cadet pilots was performed. The study indicates that 153 cadet pilots were injured, with a total of 168 injuries. The injury rates associated with extrinsic and intrinsic risk factors were compared and analyzed by using orthogonal multivariate analysis. Landing is the most dangerous part of parachuting, causing 88% of injuries. Extrinsic factors associated with increased injury rates are higher surface wind speed and third-generation protective boots. Intrinsic factors associated with reduced injury rates are excellent mental qualities, excellent parachuting movements, and female cadet pilots. Strengthening parachuting movements and mental qualities, approving jumps only when basic parachuting conditions are met, and improving protective equipment are recommended strategies for preventing parachuting injuries.
1778
Authors: Hai Yan Ju, Gui Qing Gao, Qiu Xiang Li, Jian Hua Li
Abstract: Tailings dam is a potential risk source in the metal mines, once the tailings dam break, it will not only lead to tremendous loss in people’s lives and property, but also result in serious environmental pollution. Basing on the accidents of tailings dam failure at home, the dam failure causes are analyzed, some technology and management suggestions about decreasing dam-break accident are put forward, which provide reference for safety management to tailings dam.
299
Authors: Yan Ting Ma, Chun Jie Ma
Abstract: As one of large engineering projects, suburban roads plays an important role in urban construction, however, there exists a great many risks in the entire constructing process, which restrict the course of the project in varying degrees. It may cause the construction delay, property loss, and even leave serious quality problems if handled improperly. This paper analyzes the reason of suburban roads construction delay from three aspects which are owner, construction and supervision units, and give some corresponding countermeasures for reference.
2167
Authors: Qing Lin Yi, Juan Juan Wu, Tian Fan Dai
Abstract: The reliability of schedule management directly affects the project cost and quality. Time limit is the most important part in schedule management. The determination of reasonable time limit can save cost for investors, and ensure project quality .Based on this characteristic, this paper adopts utility curve to carry out risk analysis for risk factors, eliminates unreliable construction period and carries on fuzzy comprehensive evaluation for the rest of the possible period. Then it got scientific and reasonable time limit. The method can determine the construction period credibly and is used to guide engineering practical.
2976
Authors: Xuan Hua Qin, Fen Luo
Abstract: This paper uses the utility function to determine the distribution of tenders costs as the most realistic normal distribution with parameters and . It comes up with the tenders strategies through maximized utility analysis and discusses the influence of risk preference coefficient on bidding strategies. In view of the present construction market, the thesis proposes the necessity and the pressing to continue to strengthen the application of the bidding system.
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