论人身保险合同订立中保险人的答复义务

人身保险合同订立中,作为要约书面形式的投保书通常未标明有效期限,为合理分担合同未成立前的风险,保证交易的安全,实现当事人间利益的平衡和社会正义,应当强制保险人在法定时间或合理期限内答复, 而无论承诺与否;否则,即构成默示承诺。     

三峡库区船舶防污染研究

文中介绍了三峡库区船舶防污染工作的现状,分析了目前存在的一些问题,提出了相应的对策。     

沿海小型多用途航标船的关键技术

基于现有小型航标船的应用分析,结合连云港港30万吨级航道配套新型航标工作船的设计研究,对小型航标船的关键技术特点、作业方式、主尺度确定、主要设备选型、舱室舾装节能技术、测量和通讯、无线电定位监测系统等进行了分析阐述,为小型航标船的设计提供参考和设计思路。     

Guidance for new policy developments on railway noise and vibration

Noise and vibration are two of the main problems associated with railways in residential areas. To ensure quality of life and well-being of inhabitants living in the vicinity of railway paths, it is important to evaluate, understand, control and regulate railway noise and vibration. Much attention has been focused on the impact of noise from railway traffic but the consideration of railway-induced vibration has often been neglected. This paper aims to provide policy guidance based on results obtained from the analyses of relationships estimated from ordinal logit models between human response, railway noise exposure and railway vibration exposure. This was achieved using data from case studies comprised of face-to-face interviews (N = 931), internal vibration measurements (N = 755), and noise calculations (N = 688) collected within the study “Human Response to Vibration in Residential Environments” by the University of Salford, UK. Firstly, the implications of neglecting vibration in railway noise policies are investigated. The findings suggest that it is important to account for railway induced vibrations in future noise and transport policies, as neglecting vibrations results in an underestimation of people highly annoyed by noise. Secondly, implications of neglecting different types of railway sources are presented. It was found that the impact of noise and vibration form maintenance operations should be better understood and should be taken into account when assessing the environmental impact of railways in residential environments. Finally, factors that were found to influence railway vibration annoyance are presented and expressed as weightings. The data shows that factors specific to a particular residential area should also be taken into account in future vibration policies as the literature shows that attitudinal, socio-demographic and situational factors have a large influence on vibration annoyance responses. This work will be of interest to researchers and environmental health practitioners involved in the assessment of vibration complaints, as well as to policy makers, planners and consultants involved in the design of buildings and railways.     

基于STCW公约马尼拉修正案的高职航海技术专业课程开发

以STCW公约马尼拉修正案全面履约要求为出发点,按照高等职业技术教育教学规律,提出了高职航海技术专业课程内容遴选、课程体系构建、课程内容序化、课程教学实施标准制订等基本教学要素的改革思路。     

Are consumers willing to pay to let cars drive for them? Analyzing response to autonomous vehicles

Autonomous vehicles use sensing and communication technologies to navigate safely and efficiently with little or no input from the driver. These driverless technologies will create an unprecedented revolution in how people move, and policymakers will need appropriate tools to plan for and analyze the large impacts of novel navigation systems. In this paper we derive semiparametric estimates of the willingness to pay for automation. We use data from a nationwide online panel of 1260 individuals who answered a vehicle-purchase discrete choice experiment focused on energy efficiency and autonomous features. Several models were estimated with the choice microdata, including a conditional logit with deterministic consumer heterogeneity, a parametric random parameter logit, and a semiparametric random parameter logit. We draw three key results from our analysis. First, we find that the average household is willing to pay a significant amount for automation: about $3500 for partial automation and $4900 for full automation. Second, we estimate substantial heterogeneity in preferences for automation, where a significant share of the sample is willing to pay above $10,000 for full automation technology while many are not willing to pay any positive amount for the technology. Third, our semiparametric random parameter logit estimates suggest that the demand for automation is split approximately evenly between high, modest and no demand, highlighting the importance of modeling flexible preferences for emerging vehicle technology.     

钻孔桩基础人工开挖施工的应用

钻孔桩桩基桥梁的施工 ,在一定条件下 ,可以进行人工挖孔桩基施工 ,其质量好、保护环境、节约工程造价 ,又可加快施工进度 ,混凝土浇筑由隐蔽施工变成直观显现施工 ,充分证明了施工的可行性。     

避碰规则适用的时机

国际海上避碰规则何时开始适用于会遇的两船，不讼对于海上避碰还是对于海上避碰中碰撞责任的划分都是非常重要的。该文对一个多世纪以来英美两国相关的海事判例和学术观点进行了回顾，在此基础上结合典型案例对经进行了分析，并论述了与规则适用问题相关的几种特殊情况。     

Journey to work and job search characteristics of the urban poor

Gender differences in work trip and job search patterns have received several analytical attention in recent years. A consistent finding in the literature is that women work closer to home than men because of their lower income, greater household responsibilities, and heavier reliance on public transit. While these findings pervade the literature, there has been little analysis into the extent to which they hold in the exclusive case of the urban poor. Can poor women afford to choose between jobs on the basis of journey to work considerations, any more than poor men? Using a survey data from Edmonton, this study examines the gender differences in commuting and job search patterns of the urban poor. The findings suggest that, even among the low income population, women have shorter work trips and greater preference for part-time jobs than men because of their child care and household responsibilities. More women than men did not have enough time for their job search activities; and fewer women than men were prepared to accept job offers in all parts of the study area due to their household responsibilities. The results suggest that while males' employment problems are tied primarily to the working of the labour market, through inadequate skills and lack of good-paying jobs, females' employment problems are more explicable in terms of their role as mothers and homemakers.     

RAID5磁盘阵列技术的性能分析

作者首先概述磁盘阵列技术的几种结构,然后较为深入地分析和比较了集中式与分布式RAID_5各自不同的特点,最后对磁盘阵列技术的应用前景作了论述。