In recent years, in Vietnam, economy has been developing rapidly. To ensure rapid and sustainable economic growth, strong support from the energy sector is required. Governments in Vietnam have invested in numerous hy...In recent years, in Vietnam, economy has been developing rapidly. To ensure rapid and sustainable economic growth, strong support from the energy sector is required. Governments in Vietnam have invested in numerous hydropower projects, many of which employ the EPC (Engineering, Procurement and Construction) contract. However, the EPC general contractors are facing many difficulties, resulting in schedule delays and considerable losses. This research is conducted to highlight the main risk factors in the delays of hydropower construction projects in Vietnam. The research employs the method of statistical calculations and risk analysis to obtain feedback from experts participating in similar projects. The research outcomes are as follows: identifying the risks that can cause delays in EPC hydroelectric construction projects in Vietnam;calculating and classifying the degree of impact of each risk to the progress of the construction. The practical significance of this study is to ensure the timely completion of projects, benefits for the investors, and the EPC general contractors.展开更多
The series of Summer Institute for Disaster and Risk Research is part of the implementation of the Hazard and Risk Science Base at Beijing Normal University,funded jointly by the State Administration of Foreign Expert...The series of Summer Institute for Disaster and Risk Research is part of the implementation of the Hazard and Risk Science Base at Beijing Normal University,funded jointly by the State Administration of Foreign Experts Affairs,Ministry of Education,and the Beijing Normal University.Who can apply?The Summer Institute is designed primarily for junior faculty and young researchers,post-docs and advanced doctoral students,who have shown strong interests and possessed research experience in the disaster and risk field.The application展开更多
Traditional occupational disease control and prevention has remained prevalent in China over recent decades. There are appropriately 30,000 new case reports of occupational diseases annually. Although China has alread...Traditional occupational disease control and prevention has remained prevalent in China over recent decades. There are appropriately 30,000 new case reports of occupational diseases annually. Although China has already established a series of occupational disease prevention programs, occupational health risk assessment （OHRA） strategies continue to be a limitation.展开更多
背景:有限元分析是一种广泛应用于工程技术领域的分析手段,但因其对复杂结构同样能做到高精度分析,在骨科领域的应用研究也逐年递增。近10年来,国内外利用有限元分析对股骨头坏死研究取得的成果数不胜数,但是尚缺乏对于当前研究现状和...背景:有限元分析是一种广泛应用于工程技术领域的分析手段,但因其对复杂结构同样能做到高精度分析,在骨科领域的应用研究也逐年递增。近10年来,国内外利用有限元分析对股骨头坏死研究取得的成果数不胜数,但是尚缺乏对于当前研究现状和热点趋势的分析。目的:对近年来有限元法应用于股骨头坏死领域的研究现状及热点进行可视化分析。方法:从中国知网(CNKI)及Web of Science数据库中筛选出2014-2023年发表与股骨头坏死有限元分析相关的文章,利用Citespace 6.1.R6可视化分析软件对相关文献的主要研究内容进行归纳,并绘制出年度发文量、作者图谱、共被引文献、热点关键词等科学知识图谱,进行总结概括。结果与结论:①根据相关关键词检索文献后导入Citespace软件,使用软件去重功能去除重复文章后,Web of Science核心合集相关文献385篇,CNKI数据库相关文献149篇;②其中关键词共现分析发现Web of Science数据库近10年间关键词频次排名为:finite element analysis(163次)、femoral head(83次)、arthroplasty(44次)、fixation(40次)、replacement(39次),中心性排名为:finite element method(0.21)、hip joint(0.21)、stability(0.19)、fixation(0.15)、contact pressure(0.15);③CNKI数据库近10年间关键词频次排名为:有限元分析(91次)、生物力学(45次)、股骨头坏死(42次)、股骨颈骨折(33次)、内固定(16次),中心性排名为:内固定(0.45)、3d打印(0.44)、健脾活骨方(0.43)、三维重建(0.42)、股骨头坏死(0.38);④近10年在股骨头坏死领域的研究中,国内外的发展均从“静态”发展为“动态”,整体进程基本上相似,对于步态模型及风险预测研究都较为深入;此外随着国内学者对于中药研究的深入,中医药手段治疗股骨头坏死疗效也得到了很好的验证;而在近10年内医学材料及计算机技术等领域将会成为国内外研究的热点;⑤尽管国内相关领域的研究较为迟缓,仍需更多临床研究验证,但随着国内科技技术的进步,相信国内学者会在未来将股骨头坏死有限元分析真正应用到临床,起到辅助患者个体化治疗、提升远期疗效的作用。展开更多
The number of deaths associated with cardiovascular events remains constant in many countries due to new therapeutic approaches for prevention and treatment of atherosclerosis. This condition is widely attributable to...The number of deaths associated with cardiovascular events remains constant in many countries due to new therapeutic approaches for prevention and treatment of atherosclerosis. This condition is widely attributable to unhealthy outcomes in its association with risk factors such as smoking and sedentary behavior. Risk factors play a significant role in the progression of coronary artery disease. We conducted a review of the literature with the purpose of identifying primary risk factors for coronary disease, lifestyle change interventions, and expectations for a reduction in cardiovascular events on the basis of evidence-based health education strategies. In addition, we sought to contextualize this review so that nurses are trained to use these findings in their practice at different levels of care.展开更多
AIM:To investigate the number of publications in cardiovascular disease(CVD)in Latin America and the Caribbean over the last decade.METHODS:We performed a bibliometric analysis in PubMed from 2001 to 2010 for Latin Am...AIM:To investigate the number of publications in cardiovascular disease(CVD)in Latin America and the Caribbean over the last decade.METHODS:We performed a bibliometric analysis in PubMed from 2001 to 2010 for Latin America and the Caribbean,the United States,Canada,Europe,China,and India.RESULTS:Latin America published 4%of articles compared with 26%from the United States/Canada and 42%from Europe.In CVD,Latin America published 4% of articles vs 23%from the United States/Canada and 40%from Europe.The number of publications in CVD in Latin America increased from 41 in 2001 to 726 in 2010.CONCLUSION:Latin America,while publishing more articles than previously,lags behind developed countries.Further advances in research infrastructure are necessary to develop prevention strategies for this region.展开更多
负荷聚合商(load aggregator,LA)集成需求侧资源参与双重市场(能量市场和备用市场)投标,需要根据市场运营规则对具有不同行为特性的需求侧资源优化组合。文章考虑双重市场对响应资源的技术要求,从负荷削减量和响应时间2个方面体现需求...负荷聚合商(load aggregator,LA)集成需求侧资源参与双重市场(能量市场和备用市场)投标,需要根据市场运营规则对具有不同行为特性的需求侧资源优化组合。文章考虑双重市场对响应资源的技术要求,从负荷削减量和响应时间2个方面体现需求侧资源的不确定性,引入条件风险价值(conditional value at risk,CVaR)理论,考虑备用市场响应超时的违约风险,制定其在双重市场的资源集成优化投标策略,以响应电量不足期望评估聚合商参与双重市场的响应可靠性。算例分析不同风险偏好系数下聚合商利润与风险的动态关系,优化需求侧资源的容量配置,为聚合商双重市场的投标和风险度量提供参考。展开更多
Security risk assessment refers to the process of identifying, analyzing, and evaluating potential security risks for an organization. An organization’s assets, personnel, and operations are protected through it as p...Security risk assessment refers to the process of identifying, analyzing, and evaluating potential security risks for an organization. An organization’s assets, personnel, and operations are protected through it as part of a comprehensive security program. Various security assessments models have been published in the literature to protect the Saudi organization’s assets, personnel, and operations. However, these models are redundant and were developed for specific purposes. Hence, the comprehensive security risk assessment model used to safeguard Saudi organizations’ assets, personnel, and operations is still omitted. Using a design science methodology, the objective of this study is to develop a comprehensive security risk assessment model called CSRAM to assess security risks in Saudi Arabian organizations based on the International Organization for Standardization and the International Electrotechnical Commission/Information security risk management (ISO/IEC 27005 ISRM) standard. CSRAM is made up of six stages: threat identification, vulnerability assessment, risk analysis, risk evaluation, risk treatment, and monitoring and review of the risk. The stages have many activities and tasks that need to be accomplished at each stage. Based on the results of the validation of the completeness of the CSRAM, we can say that the CSRAM covers the whole ISO/IEC 27005 ISRM standard, and it is complete.展开更多
复杂产品系统(CoPS)的研发过程具有高度的不确定性和复杂性,涉及诸多风险因素,众多学者针对相关风险进行研究、提供对CoPS研发风险管理的深刻洞见,以期提高CoPS研发成功率。因此,梳理89篇来自Web of Science、中国知网等数据库1998年至2...复杂产品系统(CoPS)的研发过程具有高度的不确定性和复杂性,涉及诸多风险因素,众多学者针对相关风险进行研究、提供对CoPS研发风险管理的深刻洞见,以期提高CoPS研发成功率。因此,梳理89篇来自Web of Science、中国知网等数据库1998年至2023年间国内外CoPS研发过程风险研究相关文献,从风险管理、风险生成和风险传播3个视角,对CoPS研发过程的风险研究工作进行归纳。结果显示在CoPS风险研究领域,风险管理的相关研究最广泛,文献数量从1998年开始逐渐增加,数量占比为78%,是领域内主要研究方向;风险生成相关研究受关注较少,文献数量占比为11%且在发表时间上较为分散,除2015年与2018年外每年不多于1篇;风险传播相关研究首篇文献发表于2013年,近年来受到持续关注,文献数量占比为11%。其中,风险管理相关研究主要从风险识别、风险评估、风险应对及风险控制4个核心环节进行展开,揭示在CoPS研发过程中如何通过多种方法有效识别并应对潜在风险;风险生成相关研究主要针对利益相关者的违约风险、技术风险等探究相关风险生成路径,并对风险因素间的相互作用进行初步探索;风险传播相关研究则分析揭示有关风险是如何在项目的不同阶段和部门间传播。同时可见,当前风险管理研究主要聚焦于单一风险因素的探讨,缺少系统地对CoPS研发过程中的流程或生命周期的风险识别、控制与应对的研究;风险生成研究缺乏对风险耦合产生风险事件机制的深入研究;风险传播研究在一定程度上忽视了风险因素间的动态影响,且相关案例数据的支撑不足。基于此,从研究内容、研究方法角度以及考虑当前及未来的外部宏观环境影响等方面,提出未来可进一步探讨的研究方向。展开更多
文摘In recent years, in Vietnam, economy has been developing rapidly. To ensure rapid and sustainable economic growth, strong support from the energy sector is required. Governments in Vietnam have invested in numerous hydropower projects, many of which employ the EPC (Engineering, Procurement and Construction) contract. However, the EPC general contractors are facing many difficulties, resulting in schedule delays and considerable losses. This research is conducted to highlight the main risk factors in the delays of hydropower construction projects in Vietnam. The research employs the method of statistical calculations and risk analysis to obtain feedback from experts participating in similar projects. The research outcomes are as follows: identifying the risks that can cause delays in EPC hydroelectric construction projects in Vietnam;calculating and classifying the degree of impact of each risk to the progress of the construction. The practical significance of this study is to ensure the timely completion of projects, benefits for the investors, and the EPC general contractors.
文摘The series of Summer Institute for Disaster and Risk Research is part of the implementation of the Hazard and Risk Science Base at Beijing Normal University,funded jointly by the State Administration of Foreign Experts Affairs,Ministry of Education,and the Beijing Normal University.Who can apply?The Summer Institute is designed primarily for junior faculty and young researchers,post-docs and advanced doctoral students,who have shown strong interests and possessed research experience in the disaster and risk field.The application
基金supported by the Natural Science Foundation of China(81472961)the Joint Projects of the National Health and Family Planning Commission of China and the Health Bureau of Zhejiang Province(No.WSK 2014-2-004)the Zhejiang Provincial Program for the Cultivation of High-Level Innovative Health Talents
文摘Traditional occupational disease control and prevention has remained prevalent in China over recent decades. There are appropriately 30,000 new case reports of occupational diseases annually. Although China has already established a series of occupational disease prevention programs, occupational health risk assessment （OHRA） strategies continue to be a limitation.
文摘背景:有限元分析是一种广泛应用于工程技术领域的分析手段,但因其对复杂结构同样能做到高精度分析,在骨科领域的应用研究也逐年递增。近10年来,国内外利用有限元分析对股骨头坏死研究取得的成果数不胜数,但是尚缺乏对于当前研究现状和热点趋势的分析。目的:对近年来有限元法应用于股骨头坏死领域的研究现状及热点进行可视化分析。方法:从中国知网(CNKI)及Web of Science数据库中筛选出2014-2023年发表与股骨头坏死有限元分析相关的文章,利用Citespace 6.1.R6可视化分析软件对相关文献的主要研究内容进行归纳,并绘制出年度发文量、作者图谱、共被引文献、热点关键词等科学知识图谱,进行总结概括。结果与结论:①根据相关关键词检索文献后导入Citespace软件,使用软件去重功能去除重复文章后,Web of Science核心合集相关文献385篇,CNKI数据库相关文献149篇;②其中关键词共现分析发现Web of Science数据库近10年间关键词频次排名为:finite element analysis(163次)、femoral head(83次)、arthroplasty(44次)、fixation(40次)、replacement(39次),中心性排名为:finite element method(0.21)、hip joint(0.21)、stability(0.19)、fixation(0.15)、contact pressure(0.15);③CNKI数据库近10年间关键词频次排名为:有限元分析(91次)、生物力学(45次)、股骨头坏死(42次)、股骨颈骨折(33次)、内固定(16次),中心性排名为:内固定(0.45)、3d打印(0.44)、健脾活骨方(0.43)、三维重建(0.42)、股骨头坏死(0.38);④近10年在股骨头坏死领域的研究中,国内外的发展均从“静态”发展为“动态”,整体进程基本上相似,对于步态模型及风险预测研究都较为深入;此外随着国内学者对于中药研究的深入,中医药手段治疗股骨头坏死疗效也得到了很好的验证;而在近10年内医学材料及计算机技术等领域将会成为国内外研究的热点;⑤尽管国内相关领域的研究较为迟缓,仍需更多临床研究验证,但随着国内科技技术的进步,相信国内学者会在未来将股骨头坏死有限元分析真正应用到临床,起到辅助患者个体化治疗、提升远期疗效的作用。
文摘The number of deaths associated with cardiovascular events remains constant in many countries due to new therapeutic approaches for prevention and treatment of atherosclerosis. This condition is widely attributable to unhealthy outcomes in its association with risk factors such as smoking and sedentary behavior. Risk factors play a significant role in the progression of coronary artery disease. We conducted a review of the literature with the purpose of identifying primary risk factors for coronary disease, lifestyle change interventions, and expectations for a reduction in cardiovascular events on the basis of evidence-based health education strategies. In addition, we sought to contextualize this review so that nurses are trained to use these findings in their practice at different levels of care.
文摘AIM:To investigate the number of publications in cardiovascular disease(CVD)in Latin America and the Caribbean over the last decade.METHODS:We performed a bibliometric analysis in PubMed from 2001 to 2010 for Latin America and the Caribbean,the United States,Canada,Europe,China,and India.RESULTS:Latin America published 4%of articles compared with 26%from the United States/Canada and 42%from Europe.In CVD,Latin America published 4% of articles vs 23%from the United States/Canada and 40%from Europe.The number of publications in CVD in Latin America increased from 41 in 2001 to 726 in 2010.CONCLUSION:Latin America,while publishing more articles than previously,lags behind developed countries.Further advances in research infrastructure are necessary to develop prevention strategies for this region.
文摘负荷聚合商(load aggregator,LA)集成需求侧资源参与双重市场(能量市场和备用市场)投标,需要根据市场运营规则对具有不同行为特性的需求侧资源优化组合。文章考虑双重市场对响应资源的技术要求,从负荷削减量和响应时间2个方面体现需求侧资源的不确定性,引入条件风险价值(conditional value at risk,CVaR)理论,考虑备用市场响应超时的违约风险,制定其在双重市场的资源集成优化投标策略,以响应电量不足期望评估聚合商参与双重市场的响应可靠性。算例分析不同风险偏好系数下聚合商利润与风险的动态关系,优化需求侧资源的容量配置,为聚合商双重市场的投标和风险度量提供参考。
文摘Security risk assessment refers to the process of identifying, analyzing, and evaluating potential security risks for an organization. An organization’s assets, personnel, and operations are protected through it as part of a comprehensive security program. Various security assessments models have been published in the literature to protect the Saudi organization’s assets, personnel, and operations. However, these models are redundant and were developed for specific purposes. Hence, the comprehensive security risk assessment model used to safeguard Saudi organizations’ assets, personnel, and operations is still omitted. Using a design science methodology, the objective of this study is to develop a comprehensive security risk assessment model called CSRAM to assess security risks in Saudi Arabian organizations based on the International Organization for Standardization and the International Electrotechnical Commission/Information security risk management (ISO/IEC 27005 ISRM) standard. CSRAM is made up of six stages: threat identification, vulnerability assessment, risk analysis, risk evaluation, risk treatment, and monitoring and review of the risk. The stages have many activities and tasks that need to be accomplished at each stage. Based on the results of the validation of the completeness of the CSRAM, we can say that the CSRAM covers the whole ISO/IEC 27005 ISRM standard, and it is complete.
文摘复杂产品系统(CoPS)的研发过程具有高度的不确定性和复杂性,涉及诸多风险因素,众多学者针对相关风险进行研究、提供对CoPS研发风险管理的深刻洞见,以期提高CoPS研发成功率。因此,梳理89篇来自Web of Science、中国知网等数据库1998年至2023年间国内外CoPS研发过程风险研究相关文献,从风险管理、风险生成和风险传播3个视角,对CoPS研发过程的风险研究工作进行归纳。结果显示在CoPS风险研究领域,风险管理的相关研究最广泛,文献数量从1998年开始逐渐增加,数量占比为78%,是领域内主要研究方向;风险生成相关研究受关注较少,文献数量占比为11%且在发表时间上较为分散,除2015年与2018年外每年不多于1篇;风险传播相关研究首篇文献发表于2013年,近年来受到持续关注,文献数量占比为11%。其中,风险管理相关研究主要从风险识别、风险评估、风险应对及风险控制4个核心环节进行展开,揭示在CoPS研发过程中如何通过多种方法有效识别并应对潜在风险;风险生成相关研究主要针对利益相关者的违约风险、技术风险等探究相关风险生成路径,并对风险因素间的相互作用进行初步探索;风险传播相关研究则分析揭示有关风险是如何在项目的不同阶段和部门间传播。同时可见,当前风险管理研究主要聚焦于单一风险因素的探讨,缺少系统地对CoPS研发过程中的流程或生命周期的风险识别、控制与应对的研究;风险生成研究缺乏对风险耦合产生风险事件机制的深入研究;风险传播研究在一定程度上忽视了风险因素间的动态影响,且相关案例数据的支撑不足。基于此,从研究内容、研究方法角度以及考虑当前及未来的外部宏观环境影响等方面,提出未来可进一步探讨的研究方向。
