Port authorities view state coastal management programs

Abstract

An estuarine sanctuary is a store of public values due to the ecological, cultural, recreational, aesthetic, historic, and economic services provided by the preserve. These values may be expected to increase over time because of (1) growth in the population demanding estuarine services, (2) growth in the willingness to pay for such services, and (3) growth in the actual quality and quantity of services which are provided by a protected natural system. Thus an estuarine sanctuary will be more valuable to future generations than to current generations. When weighing the cost and benefits of a preservation or development decision, a preservation decision which seems currently undesirable may in fact be socially beneficial when growth in the value of estuarine services is included.     

Local Level Fisheries Management in Diani-Chale,Kenya: Current Status and Future Directions

The current regime of fisheries management and the prospects for attaining a more locally oriented, collaborative system of fisheries management in Diani-Chale, Kenya are examined. At present fisheries management in Diani-Chale is characterized by diminished government capacity for regulation, weakened local institutions, and little ability to exert control over the use of fisheries. Local level management requires the development and use of local institutions that can govern the use of fishery resources. The fish landing sites used by fishers and their associated fishing grounds were identified to be at the appropriate level for resolving fishery management issues. A more formal role for these entities, the clarification of fishing ground tenure and access rights, and support for the development and enforcement of local fishing rules can further local management. The socioeconomic condition of fishers, their fear of losing landing sites, and the continued perception of the imposition of a marine reserve pose barriers to initiatives seeking to further local level management.     

城市高快速路先行建设智能交通系统之我见

分析了城市高快速路现状普遍存在的突出问题及城市高快速路建设智能交通系统的意义，从实际需求和将来发展预留空间出发，结合工作实践，提出了城市高快速路智能交通系统的系统定位和功能架构。     

“麦莎”台风对苏州河的水位影响分析

该文分析了苏州河水系遭遇“麦莎”台风的雨情和水情,并利用相应实测资料对苏州河水系河网水量模型进行验证计算,检验结果精度较高,在此基础上,分析研究出现状和未来远期规划工况条件下,遭遇“麦莎”台风影响的苏州河沿线高水位变化分布。     

高压旋喷地基加固施工时的土体扰动控制探索

介绍了地基加固施工中的一个痼疾:地基加固施工不可避免地会对周围土体产生扰动,从而导致周围管线及建筑物的沉降。文中通过对工程实例的分析,详细介绍了高压旋喷施工时如何有针对性地采取措施来控制土体扰动的危害,介绍了一些处理方法,提出了施工过程中应注意的问题。     

城市河涌整治中降低泄洪河道最高洪水位的途径

流经城区的泄洪河道往往在雨季造成水渍 ,产生不同程度的财产损失。降低河道暴雨时的水位是城市防洪的重要任务之一。下面以流经广东省中山市城区的白石涌整治为例 ,淡谈在城市防洪工作中怎样有效降低泄洪河道的洪水位     

汽油机缸内直喷的关键技术和发展现状

讨论了缸内直喷发动机的优缺点和当前对该种发动机出了要求，认为缸内直喷技术的关键是掌握和控制好混合气浓度在空间的分布和随时间的变化，其控制是在一定的喷油，点火控制策略下靠燃油射系统与缸内流场的合理匹配实现的，阐述了缸内直喷对上述两个方面提出的要求，并讨论了发动机排放及其解决方法。     

国产电力机车“十五”展望

阐述了国外电力机车的发展趋势及我国电力机车生产的现状，指出电力机车制造企业要占领市场，就必须具备良好的技术实力，大力提升工艺水平。     

马来西亚达道河口潮汐分析

根据实例潮位资料,对达道河口潮位进行潮汐调和计算分析和理论最低潮位计算,得出该河口地区潮汐特征.     

高速铁路通信信号设备接口雷电防护优化设计

提出了临界防护状态的概念,分析了临界防护状态使设备损坏的原因,提出高速铁路通信信号设备接口雷电防护优化设计方法,通过有效方法掌握被防护对象的耐冲击水平值和SPD各器件的耐受值,做到量化设计,保证防护的可靠性.