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Evolution of seismic risk management for insurance over the past 30 years

Earthquake Engineering and Engineering Vibration 2018年第1期17卷 11-18页

作者： Haresh C.Shah weimin dong Pane Stojanovski Alex Chen Stanford University CA USA Risk Management Solutions Inc Newark CA USA Asia Risk Transfer Solutions Pte Ltd Singapore DWMConsulting Palo Alto CA USA Institute for Catastrophe Risk Management Nanyang Technological University Singapore Cat Risk Reasearch LLC-Cupertino CA USA

During the past 30 years, there has been spectacular growth in the use of risk analysis and risk management tools developed by engineers in the financial and insurance sectors. The insurance, the reinsurance, and the investment banking sectors have enthusiastically adopted loss estimation tools developed by engineers in developing their business strategies and for managing their financial risks. As a result, insurance/reinsurance strategy has evolved as a major risk mitigation tool in managing catastrophe risk at the individual, corporate, and government level. This is particularly true in developed countries such as US, Western Europe, and Japan. Unfortunately, it has not received the needed attention in developing countries, where such a strategy for risk management is most needed. Fortunately, in the last five years, there has been excellent focus in developing ＂Insur Tech＂ tools to address the much needed ＂Insurance for the Masses＂, especially for the Asian Markets. In the earlier years of catastrophe model development, risk analysts were mainly concerned with risk reduction options through engineering strategies, and relatively little attention was given to financial and economic strategies. Such state-of-affairs still exists in many developing countries. The new developments in the science and technologies of loss estimation due to natural catastrophes have made it possible for financial sectors to model their business strategies such as peril and geographic diversification, premium calculations, reserve strategies, reinsurance contracts, and other underwriting tools. These developments have not only changed the way in which financial sectors assess and manage their risks, but have also changed the domain of opportunities for engineers and *** paper will address the issues related to developing insurance/reinsurance strategies to mitigate catastrophe risks and describe the role catastrophe risk insurance and reinsurance has played in managing finan

关键词： catastrophe risk management loss estimation risk modeling insurance for the masses

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Agricultural Risk Modeling Challenges in China:Probabilistic Modeling of Rice Losses in Hunan Province

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International Journal of Disaster Risk Science 2015年第4期6卷 335-346页

作者： Pane Stojanovski weimin dong Ming Wang Tao Ye Shuangcai Li Christian P.Mortgat CAT Risk Research LLC Institute for Catastrophe Risk Management Nanyang Technological University Risk Management Solutions Inc.(RMS) Academy of Disaster Reduction and Emergency Management Ministry of Civil Affairs and Ministry of Education of ChinaBeijing Normal University

This article summarizes a joint research projec undertaken under the Risk Management Solutions, Inc(RMS) banner to investigate some of the possible approaches for agricultural risk modeling in China. Two modeling approaches were investigated—the simulated weather crop index and the burn yield analysis approach. The study was limited to Hunan Province and a single crop—rice. Both modeling approaches were dealt with probabilistically and were able to produce probabilistic risk metrics. Illustrative model outputs are also presented. The article discusses the robustness of the modeling approaches and their dependence on the availability, access to, and quality of weather and yield data. We offer our perspective on the requirements for models and platforms for agricultural risk quantification in China in order to respond to the needs of all stakeholders in agricultural risk transfer.

关键词： Agricultural risk insurance Agricultural risk modeling Burn yield analysis Catastrophe risk China Simulated weather crop index

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Engineering models for catastrophe risk and their application to insurance

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Earthquake Engineering and Engineering Vibration 2002年第1期1卷 145-151页

作者： weimin dong Risk Management Solutions,Inc.USA Ph.D and Visiting Professor of Institute of Engineering Mechanics Risk Management Solutions Inc. USA

Internationally earthquake insurance,like all other insurance (fire,auto),adopted actuarial approach in the past, which is,based on historical loss experience to determine insurance *** to the fact that earthquake is a rare event with severe consequence,irrational determination of premium rate and lack of understanding scale of potential loss led to many insurance companies insolvent after Northridge earthquake in 1994. Along with recent advances in earth science,computer science and engineering,computerized loss estimation methodologies based on first principles have been developed to the point that losses from destructive earthquakes can be quantified with reasonable accuracy using scientific modeling techniques. This paper intends to introduce how engineering models can assist to quantify earthquake risk and how insurance industry can use this information to manage their risk in the United States and abroad.

关键词： risk insurance earthquake engineering model

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分布式光纤监测技术在水平井分段压裂中的应用

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能源与环保 2024年第2期46卷 146-154,162页

作者：周明秀管英柱张国威董为民曹石年长江大学石油工程学院湖北武汉430100 油气钻采工程湖北省重点实验室湖北武汉430100 玉门油田公司老君庙采油厂甘肃酒泉735000

水平井分段压裂过程中,涉及大量繁杂的数据监测与处理工作,同时,压裂过程的不确定性给实时监测带来了更大的难度。传统的井下监测方式存在监测精确度低、受电磁干扰、成本高昂等问题,分布式光纤传感技术的产生,为这些亟待解决的难题提... 详细信息

水平井分段压裂过程中,涉及大量繁杂的数据监测与处理工作,同时,压裂过程的不确定性给实时监测带来了更大的难度。传统的井下监测方式存在监测精确度低、受电磁干扰、成本高昂等问题,分布式光纤传感技术的产生,为这些亟待解决的难题提供了新的解决思路。分布式光纤传感技术以其成本低、耐高温、性质稳定、不受电磁干扰等优势,逐渐在油田得到应用。对水平井分段压裂的应用现状进行研究,分析了分布式光纤传感技术原理,总结了分布式光纤的井下安装方式,归纳了分布式光纤传感技术在水平井分段压裂中的应用现状,最后提出了分布式光纤监测技术的发展建议。研究认为:目前,分布式光纤传感技术已受到广泛关注,将成为井下监测的重要工具;分布式光纤传感在水平井分段压裂中的应用主要有压裂液注入分布诊断、人工裂缝起裂及延伸诊断、封隔器泄漏监测和DTS/DAS数据定量解释;对未来温度和声学监测数据的解释方法将向定量解释的应用方向发展。

关键词：水平井分段压裂分布式光纤监测井下安装 DTS DAS 数据解释

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面向新型电力系统的用户侧标准化计量箱的研究与应用

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电力系统装备 2024年第7期 10-12页

作者：戴建刚夏明明李涛董伟民沈狄龙杭州欣美成套电器制造有限公司浙江杭州310000 上海恩东通用电器有限公司上海200000

随着新型电力系统的不断发展和智能化电网技术的日益成熟,用户侧的能源计量管理变得越来越重要。传统的电能计量箱已难以满足新型电力系统对于计量精准度、数据采集和通信能力的更高要求。文章针对这一问题,提出了一种面向新型电力系统... 详细信息

随着新型电力系统的不断发展和智能化电网技术的日益成熟,用户侧的能源计量管理变得越来越重要。传统的电能计量箱已难以满足新型电力系统对于计量精准度、数据采集和通信能力的更高要求。文章针对这一问题,提出了一种面向新型电力系统的用户侧标准化计量箱设计方案。该方案基于物联网技术和智能电网通信协议,实现了高精度计量、远程数据传输和双向通信功能。

关键词：新型电力系统用户侧标准化计量箱物联网智能电网

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遥感技术在地震应急基础数据库建设中的应用

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地震工程与工程振动 2013年第3期33卷 81-87页

作者：邓宏宇孙柏涛 weimin dong 哈尔滨工程大学航天与建筑工程学院黑龙江哈尔滨150001 中国地震局地震工程与工程振动重点实验室中国地震局工程力学研究所黑龙江哈尔滨150080 RMS风险管理决策公司美国加利福尼亚94560

基于地震应急基础数据库的需求,以快速、有效、准确的获取任意区域范围的建筑物基础信息数据为目的,通过应用面向对象特征提取技术从遥感图像上获取建筑物信息,并结合GIS技术将获取到的数据在空间地理坐标下网格化,得到建筑物基础信息... 详细信息

基于地震应急基础数据库的需求,以快速、有效、准确的获取任意区域范围的建筑物基础信息数据为目的,通过应用面向对象特征提取技术从遥感图像上获取建筑物信息,并结合GIS技术将获取到的数据在空间地理坐标下网格化,得到建筑物基础信息空间网格数据库。本文详细介绍了数据库建设的技术路线和在震害评估系统中的应用,并以四川省为例验证了本方法的可行性和准确性,为地震应急工作提供了有效的数据支持,为开展更大范围的数据库建设工作提供了一种新的思路。

关键词：面向对象遥感 GIS 地震应急数据库

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考虑设防水准的群体建筑物震害预测方法

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土木工程学报 2013年第5期46卷 117-121页

作者：孙柏涛张桂欣邓宏宇 weimin dong 中国地震局工程力学研究所黑龙江哈尔滨150080 哈尔滨工程大学黑龙江哈尔滨150001 RMS风险管理决策公司美国加利福尼亚94560

唐山地震、汶川地震等历史震害表明:抗震设防水准对建筑物抗震能力影响很大。为此,提出了一种考虑设防水准的群体建筑物的震害预测方法,根据已有地区的建筑物震害预测结果估计被模拟地区的震害矩阵,并将已有的震害预测矩阵分为设防结构... 详细信息

唐山地震、汶川地震等历史震害表明:抗震设防水准对建筑物抗震能力影响很大。为此,提出了一种考虑设防水准的群体建筑物的震害预测方法,根据已有地区的建筑物震害预测结果估计被模拟地区的震害矩阵,并将已有的震害预测矩阵分为设防结构和未设防结构两部分,分别计算主要震害影响因素的影响因子值,按各个影响因子所占的建筑面积比例赋予不同的权重系数,最终得到设防结构和未设防结构各自对应的综合影响系数,进而得出被模拟地区的震害矩阵。最后通过一个实例,验证了该方法的可行性和可靠性。实践证明:该方法思路清晰,计算参数少,大大提高了建筑物群体震害预测工作的效率。

关键词：群体建筑物抗震设防水准震害预测震害矩阵

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Optimized Design of Bio-Inspired Wind Turbine Blades

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Fluid Dynamics & Materials Processing 2024年第7期20卷 1647-1664页

作者： Yuanjun Dai dong Wang Xiongfei Liu weimin Wu School of Mechanical Engineering Shanghai DianJi UniversityShanghai201306China School of Information Engineering Yinchuan University of Science and TechnologyYinchuan750000China School of Mechanical and Power Engineering Chongqing University of Science and TechnologyChongqing401331China School of Aeronautical Mechanical and Electrical Engineering Chongqing Aerospace PolytechnicChongqing400021China

To enhance the aerodynamic performance of wind turbine blades,this study proposes the adoption of a bionic airfoil inspired by the aerodynamic shape of an *** on the blade element theory,a non-uniform extraction method of blade elements is employed for the optimization design of the considered wind turbine ***,Computational Fluid Dynamics(CFD)is used to determine the aerodynamic performances of the eagle airfoil and a NACA2412 airfoil,thereby demonstrating the superior aerodynamic performance of the ***,a mathematical model for optimizing the design of wind turbine blades is introduced and a comparative analysis is conducted with respect to the aerodynamic performances of blades designed using a uniform extraction *** is found that the blades designed using non-uniform extraction exhibit better aerodynamic performance.

关键词： Airfoil wind turbines blade design CFD

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Technological Analysis on Improvement of Hydraulic Cylinder Structure

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International Journal of Technology Management 2015年第1期 100-102页

作者： Yang Li'e dong weimin Kunming University of Science and Technology Kunming Yunnan 650223 China Yunnan Open University Kunming Yunnan 650223China

Hydraulic equipment is widely applied in the fields of engineering construction, manufacture and mining. As the core component of hydraulic equipment, hydraulic cylinder will directly affect the whole operation of hydraulic equipment. This paper will analyze the improvement of hydraulic cylinder structure and expect to enhance its reliability and stability.

关键词： Hydraulic Cylinder Structural Defect Improvement Technology

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Controlling Growth of ZnO Nanostructures Via A Solution Route

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Journal of Wuhan University of Technology(Materials Science) 2009年第2期24卷 249-253页

作者：贾铁昆 State Key Lab of Advanced Technology for Material Synthesis and Processing Wuhan University of Technology

A solution method was developed for fabricating ZnO nanostructures using （NH4）2CO3 as starting material SEM analysis shows that ZnO nanostructures exhibit nanorod, branch and flower-like morphologies. The crystal phase of as-synthesized products was characterized by X-ray diffraction （XRD）. The growth process, formation mechanism and optical property were also discussed by means of transmission electronic microscopy （TEM）, high resolution transmission microscopy （HRTEM） and photoluminescence （PL）. The growth direction of ZnO nanostructures was investigated based on the results of HRTEM. The PL spectrum shows two strong peaks （centered at around -387 and -470 nm） and a broad Deak （centered at around -580 nm）.

关键词： ZnO nanostructures pH solvent luminescence property

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