The aim of this paper is to examine the opportunities and problems presented by the increasing availability of technologies which is capable of enhancing sporting performance and identifying the risks in sports for cr...The aim of this paper is to examine the opportunities and problems presented by the increasing availability of technologies which is capable of enhancing sporting performance and identifying the risks in sports for creating educational and sports management practices to lead with justice, honesty, and beneficence. A questionnaire is developed to ascertain the social determinants and risks of health aspects of sports in a sample of professionals and amateurs. Descriptive and correlation analysis were used for data analysis. The study identifies health risks connected with the intensive loading of locomotors system, poor working conditions which cause working trauma and diseases as well as low level of health culture regarding the effects of performance-enhancing drugs including anabolic steroids, stimulants, human growth hormone, and supplements. There are arguments that the quality of sport education will be achieved by addressing the study of sports ethics coupled with a study of management and law.展开更多
There is a discharge control feature of construction diversion system with the upstream operational reservoir. The risk evaluation model of construction diversion is established by taking into consideration the risk f...There is a discharge control feature of construction diversion system with the upstream operational reservoir. The risk evaluation model of construction diversion is established by taking into consideration the risk factors of construction diversion system with discharge control feature as well as their composition. And the risk factors include the upstream operational reservoir discharge control, the interval flood and branch flood and the diversion system itself. And then based on analyzing of the conversion relation between risk index and investment index of diversion scheme, the risk control and conversion principals of diversion system are put forward, and the feasible diversion scheme model is built. At last, the risk and economic evaluation and scheme economic feasibility analysis method of diversion scheme are shown by an example of construction diversion scheme optimization with the discharge control condition of upstream hydropower station. The study is valuable for establishment and optimization of construction diversion scheme with upstream reservoir discharge control.展开更多
This paper examines the mutual displacement of functional elements （FE） of risky technical systems （RTS）. To this group of systems belong transport systems, technical systems operating in heavy regimes, energy and...This paper examines the mutual displacement of functional elements （FE） of risky technical systems （RTS）. To this group of systems belong transport systems, technical systems operating in heavy regimes, energy and power systems, building structures. etc. A unit of mutual displacement of the functional elements of RTS is introduced, as well as a definition of the deformator of the system. The value of the deformator of a sample system is determined.展开更多
In this paper, online security warning and risk assessment of power grid are proposed, based on data from EMS （Energy Management System）, combined with information of real-time operation state, component status and ...In this paper, online security warning and risk assessment of power grid are proposed, based on data from EMS （Energy Management System）, combined with information of real-time operation state, component status and external operating environment. It combines the two factors, contingency likelihood and severity, that determine system reliability, into risk indices on different loads and operation modes, which provide precise evaluation of the power grid＇s security performance. According to these indices, it can know the vulnerable area of the system and whether the normal operating mode or repair mode is over-limited or not, and provide decision-making support for dispatchers. Common cause outages and equipment-aging are considered in terms of the establishment of outage model. Multiple risk indices are defined in order to reflect the risk level of the power grid more comprehensively.展开更多
文摘The aim of this paper is to examine the opportunities and problems presented by the increasing availability of technologies which is capable of enhancing sporting performance and identifying the risks in sports for creating educational and sports management practices to lead with justice, honesty, and beneficence. A questionnaire is developed to ascertain the social determinants and risks of health aspects of sports in a sample of professionals and amateurs. Descriptive and correlation analysis were used for data analysis. The study identifies health risks connected with the intensive loading of locomotors system, poor working conditions which cause working trauma and diseases as well as low level of health culture regarding the effects of performance-enhancing drugs including anabolic steroids, stimulants, human growth hormone, and supplements. There are arguments that the quality of sport education will be achieved by addressing the study of sports ethics coupled with a study of management and law.
基金National Natural Science Foundation of China ( No. 10902078 and No. 51079115)
文摘There is a discharge control feature of construction diversion system with the upstream operational reservoir. The risk evaluation model of construction diversion is established by taking into consideration the risk factors of construction diversion system with discharge control feature as well as their composition. And the risk factors include the upstream operational reservoir discharge control, the interval flood and branch flood and the diversion system itself. And then based on analyzing of the conversion relation between risk index and investment index of diversion scheme, the risk control and conversion principals of diversion system are put forward, and the feasible diversion scheme model is built. At last, the risk and economic evaluation and scheme economic feasibility analysis method of diversion scheme are shown by an example of construction diversion scheme optimization with the discharge control condition of upstream hydropower station. The study is valuable for establishment and optimization of construction diversion scheme with upstream reservoir discharge control.
文摘This paper examines the mutual displacement of functional elements （FE） of risky technical systems （RTS）. To this group of systems belong transport systems, technical systems operating in heavy regimes, energy and power systems, building structures. etc. A unit of mutual displacement of the functional elements of RTS is introduced, as well as a definition of the deformator of the system. The value of the deformator of a sample system is determined.
文摘In this paper, online security warning and risk assessment of power grid are proposed, based on data from EMS （Energy Management System）, combined with information of real-time operation state, component status and external operating environment. It combines the two factors, contingency likelihood and severity, that determine system reliability, into risk indices on different loads and operation modes, which provide precise evaluation of the power grid＇s security performance. According to these indices, it can know the vulnerable area of the system and whether the normal operating mode or repair mode is over-limited or not, and provide decision-making support for dispatchers. Common cause outages and equipment-aging are considered in terms of the establishment of outage model. Multiple risk indices are defined in order to reflect the risk level of the power grid more comprehensively.
