自动站报表制作和审核分析

文章针对观测记录、报表制作、报表审核等方面的问题提出几点看法。     

Estimating sensitivities of temperature-based weather derivatives

Pricing of temperature-based weather derivatives has been studied in the literature; however, there is no analysis of the estimation of the sensitivities of weather derivatives in a stochastic model of temperatures. We use pathwise derivative and kernel methods to derive Monte Carlo estimators for the sensitivity (Greeks) of temperature-based weather derivatives. These sensitivities can be used by investors for choosing the most suitable weather contracts for partial hedging or speculation. Temperature data from New York, Atlanta and Chicago are used in the discussion of numerical results.     

Thoughts on whether government should steer a tropical cyclone if it could

Previous work suggests if it were possible to lower sea-surface temperature using wind-wave pumps, it would sometime make sense to try to reduce the wind speed of a tropical cyclone (TC) that is likely to make landfall. While currently there is no plausible strategy to steer a TC, suppose that TC landfall location could be altered and subsequent damages perhaps reduced. Here, we ask whether and when such a modification might be desirable. As a thought experiment, we consider a hypothetical TC that will make landfall on the east coast of Florida. Using results from previous detailed damage modeling, we examine three simplified scenarios of TC modification resulting in altered landfall location. Even in these simplified scenarios, and assuming a zero cost for modification, we find that unless it becomes possible to steer a hurricane to the open ocean with something approaching certainty, it is likely that the complexities of the decision will always make it undesirable to undertake a modification intended to steer TCs.     

Managing vulnerability: the implementation of vulnerability reduction measures

Activities involving hazardous substances may cause safety risks to the environment. In addition to hazard reduction measures, such as implementing safety management systems at hazardous facilities, and exposure reduction measures, such as employing safe distances between vulnerable objects and hazardous activities, safety risks can be further minimised through the implementation of vulnerability reduction measures. In the area near where activities involving dangerous substances are being carried out, measures can be taken to reduce the vulnerability, such as increasing the possibilities for emergency response and evacuation. This paper examines what the issues influencing the consideration and implementation of vulnerability reduction measures are. This is done through an examination of land use planning projects in the Netherlands and an analysis of two examinations from the National Human Environment and Transport Inspectorate on the implementation of vulnerability reduction measures to discuss the representativeness of the findings for the Netherlands. The examinations, including the examinations of the Inspectorate, show that the consideration of vulnerability reduction measures is narrower than required by Dutch rules and regulations. Additionally, the implementation of measures is limited. Only half of the vulnerability reduction measures that are adopted in land use plans are actually implemented. Important factors that hampered the consideration and adoption of measures are the restrictions of actual rules and regulation with respect to the enforceability of measures, the limited expertise of those involved and the lack of clarity in tasks and roles regarding the consideration and monitoring of vulnerability reduction measures. More fundamentally, the effectiveness of measures and the need for further risk reduction was discussed. Consequently, more insight is required into the costs and benefits of vulnerability reduction measures and if a more explicit consideration of vulnerability in land use planning practices is desired, elaboration will be needed in the areas of planning legislations, procedures and expertise.     

我国危险品物流标准体系构建研究

文章在我国危险品物流相关标准基础上,借鉴发达国家危险品物流标准,结合危险品物流发展趋势,遵循标准体系构建原则,构建了我国危险品物流标准体系表。通过体系表为应用部门与单位提供了查询、检索危险品物流相关标准的资料,有助于制定我国危险品物流相关标准,促进我国危险品物流标准制定尽快与国际危险品物流标准的接轨,加速我国危险品物流行业的发展。     

Portfolio Effects and Valuation of Weather Derivatives

In a mean‐variance framework, the indifference pricing approach is adopted to value weather derivatives, taking account of portfolio effects. Our analysis shows how the magnitude of portfolio effects is related to the correlation between weather indexes and other risky assets, the correlation between weather indexes, and the payoff structures of the existing weather derivatives in an investor's asset portfolio. We also conduct some preliminary empirical analysis. This study contributes to the weather derivative pricing literature by incorporating both the hedgeable and unhedgeable parts of weather risks in illustrating the portfolio effects on the indifference prices of weather derivatives.     

水陆两用危险物拾取船的研制

针对水上和陆地上危险物的拾取问题，运用机械原理和机械设计以及自动控制等相关知识，研制出一种水陆两用的危险物拾取船。     

完善森林管理 增强碳汇能力

森林与全球气候变暖有着紧密的联系,森林可以吸收二氧化碳,成为碳吸收器,但是森林如果遭到破坏就会成为二氧化碳的释放源,所以我们必须加强森林资源的科学管理,让森林成为有利于人类生存发展的碳汇而不是碳源。     

论《侵权责任法》第73条在矿业法律关系中的适用

矿产资源使用权人因矿山生产需要所进行的高空、高压、地下挖掘行为属于高度危险作业,因此给他人的民事权益造成损害的应承担高度危险责任;在归责原则上适用无过错责任原则;侵权人的免责事由根据受害人的过错程度加以区分,受害人故意或者由不可抗力造成损害的,侵权人免责,受害人对损害结果发生有过失的,可以减轻侵权人的责任.     

加强危险品运输包装管理 提高物流运输安全

结合包装企业的现状和特点,对危险化学品运输的事故发生原因进行了全面分析,按照现代化物流运输的要求,对危险品的包装、运输、仓储等方面进行了需求分析。制定出切实可行的安全措施,以提高危险品运输水平,确保物流运输安全。