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洪灾风险
    Flood Risk Management System Based on GIS
    基于GIS的洪灾风险管理系统
    Study on Flood Risk Zonation Assisted by Remote Sensing and Geographical Information System
    基于遥感与地理信息系统的洪灾风险区划研究
    Research on Grade Model of Flood Risk Assessment
    洪灾风险评价等级模型探讨
    FLOOD RISK MODELING OF THE ERHUA DEPRESSION AREA IN THE DOWNSTREAM OF THE WEIHE RIVER
    渭河下游“二华夹槽”洪灾风险模拟
    Flood Risk Analysis of Yudong Reservoir
    渔洞水库的洪灾风险分析
    Effect of Tributary Reservoir Capacity on Flood Risk in Protected Area
    支流防洪库容对防洪区的洪灾风险影响研究
    Financing Analysis of Contingency Reserve in Flood Risk Transfer
    应急资本在洪灾风险转移中的融资分析
    To overcome the various barriers arising from ideology 、systems、technology and economy which the establishment of risk management system of flood will be confronted with , this paper also suggests a statistical approach to estimate extremum and The concept of Gray- Uncertainty risk in figuring flood risk and analyses the severe harmfulness of accidents of extremum risk ,furthermore ,supplements and perfects present quantity- analyzing method of risk loss .
    洪水风险管理体制的建立必然面临观念方面、体制方面、技术方面与经济方面的重重障碍,并提出洪灾风险评价的极值统计学方法和灰色-随机风险率的概念,建立了其表达形式与计算方法,它完善了现有的风险损失量化方法。
    GIS can be used in flood risk management system as follows: basic information management, flood risk calculation, flood risk map making, flood risk information query and flood losses evaluation and query.
    系统是一个包括基础信息管理、堤防溃决洪水风险计算、堤防溃决洪水风险图、堤防溃决洪水风险查询、堤防溃决洪水灾害损失评估、区域防洪减灾对策等模块的为防洪减灾辅助决策和洪灾风险管理服务的计算机系统。
    Geographical information system (GIS) and remote sensing (RS) develop rapidly recent years, this provides powerful safeguard for flood risk management.
    近年来,遥感和地理信息系统(GIS)技术快速地发展,为洪灾风险管理提供了有力的支持。
    Flood risk zonation should utilize different indexes and factors and adopt different zonation methods according to different region and different environment.
    洪灾风险区划,应该针对不同的区域、不同的环境,选用不同的要素和指标,采用不同的区划方法。
    Binjiang River is a branch of Beijiang River, it will be single out to carry through the study of drainage area flood risk zonation.
    滨江流域,是北江的一个支流,选择此处,进行流域的洪灾风险区划的研究。
    Flood risk zonation method of Pajiang River natural detention basin is differ from Binjiang River small drainage basin, when store-floodwater and flood-detention project launched, some area must be submerged in this region and suffer losing.
    潖江天然蓄滞洪区的洪灾风险区划方法同滨江流域不同,一旦蓄洪、滞洪方案启动,则区域内必定会部分遭受水淹,造成损失。
    This paper will apply 2D unsteady flow equation to simulate numerically whole detention basin, and improve the equation with VORONOI diagram, according to the simulated result, spatial diversity will be pointed out such as when flood arrive, flood fastest velocity, whole time of flood submerge and flood depth and so on, at last flood risk zonation about disaster-causing factors will be done.
    本文采用二维非恒定流模型对整个蓄滞洪区洪水演进进行数值模拟,并且用VORONOI图对二维非恒定流模型进行改正,根据模拟结果,划分出洪水到达时间、洪水最大流速、洪水淹没历时、洪水淹没水深等因子的空间差异,进行洪灾致灾因子的洪灾风险区划。
    Research of this paper is a part of DECISION-MAKING FOR FLOOD-PREVENTION 3S TECHNICAL SUPPORTING SYSTEM BEIJIANG RIVER GUANGDONG PROVINCE, so building of the flood risk management system include flood risk zonation sub-system is an important content of this paper.
    本文所进行的研究,是《广东省北江流域防洪决策‘3s’技术支持系统》的一部分,所以,整个洪灾风险管理系统的建立,包括洪灾风险区划分系统的建立,也是本文的一个重要研究内容。
    There is a whole chapter to debate integrating flood risk zonation with GIS, to design flood risk management system, besides flood risk cartography and flood risk analysis.
    论文专门一章论述了洪灾风险区划模型和GIS的集成、洪灾风险管理系统的设计、洪灾风险制图和洪灾风险分析等内容。
    Secondly, based on abovementioned model, an insurance loss prediction model incorprating domain knowledge is proposed, terrain factor based on Digital Elevation Model(DEM) is abstracted as input, an approach is proposed to incorporate local domain knowledge(i.e. flood risk map) with the output results, which improve the generation ability of the model. This is also proved by experiments.
    基于上述神经网络模型提出了一种融合领域知识的保险洪灾损失预测模型,该模型将基于DEM的地形等因子抽象出来,并融合当地的领域知识-洪灾风险图,实验证明该方法可以明显提高模型的泛化能力。
    The partition of flood risk section is the precondition of flood losses evaluation.
    洪灾风险区的划分是洪灾损失评估的基础。
    The method of dangerous region is a comoparatively scientific one,conformable to features of flood insurance,in application of which the premium should be calculated by working out premium rate based on the analysis of flood risk.
    危险区域法是一种比较科学、符合洪灾保险特点的计算方法 ,应用中可以针对其缺点 ,改用保险费率代替保险费占财产的比例 ,通过洪灾风险分析 ,制定保险费率 ,进行保费计算。
    Based on flood risk analysis,the paper applies probability combination method to estimateflood hazard risk rate of flood control region in reservoir downstream regarding law of floodencountering combination as the object of study. With this method, the practical flood controlcapability of flood control measure can be judged. The results can provide scientific foundation forestablishing flood control operation plan of reservoir.
    在洪水风险分析的基础上,以洪水遭遇组合规律为分析对象,运用概率组合方法估算了水库下游防洪区的洪灾风险率,以判断当地防洪措施的实际防洪能力,为水库防洪调度方案的制定提供科学依据.
 

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