溢油污染生物资源损害评估地理信息系统的开发

提出利用VC 从底层开发溢油污染生物资源损害评估地理信息系统,用于实现对模型数据的有效管理和图形可视化.根据数值评估模型应用特点,建立评估模型数据库和地理信息数据库,给出了空间数据和属性数据的管理和查询实现方法.通过应用矢量和栅格空间数据模型、面向对象编程方法以及地图投影变换、图形绘制等图形显示技术实现空间数据的可视化.利用VC 对系统进行开发,除实现了一般GIS的基本功能外,还实现了潮流预报、溢油行为动态预测以及溢油事故海洋生物资源损害评估等专业应用功能.     

SPAR平台在波浪中运动的时域预报方法

在船舶与波浪相互作用时的三维预报方法的基础上,发展了SPAR平台与规则波相互作用的时域数值预报方法,该方法计入了SPAR平台垂荡和纵摇阻尼效应。使用该方法对一经典SPAR平台进行了规则波中的时域数值模拟。通过计算分析可以看出,该方法能捕捉SPAR平台在临界波浪周期下的耦合运动,验证了该方法的可靠性。     

INTERACTIONS BETWEEN THE HUMAN GASTRIC CARCINOMA CELL AND THE HUMAN VASCULAR ENDOTHELIAL CELL

Ｉｎｔｈｅｈｕｍａｎｓｏｌｉｄｎｅｏｐｌａｓｍ ,ｔｈｅｒｅａｒｅｍａｎｙｋｉｎｄｓｏｆｃｏｍｐｏｎｅｎｔｃｅｌｌｓｂｅｓｉｄｅｓｔｈｅｔｕｍｏｒｃｅｌｌ,ｓｕｃｈａｓｉｎｔｅｒｓｔｉｔｉａｌｃｅｌｌ ,ｉｍｍｕｎｏｃｙｔｅａｎｄｖａｓｃｕｌａｒｃｅｌｌ.Ｔｈｅｙｄｅｐｅｎｄｏｎｅａｃｈｏｔｈｅｒｔｏｃｏｎｔｒｉｂｕｔｅｔｏｔｈｅｇｅｎｅ ｓｉｓ,ｄｅｖｅｌｏｐｍｅｎｔ,ｉｎｖａｓｉｏｎａｎｄｍｅｔａｓｔａｓｉｓｏｆｔｕｍｏｒ .Ｔｈｅｉｎｔｅｒａｃｔｉｏｎｓａｍｏｎｇｔｈｅｍａｒｅｃｏｍｐｌｉｃａｔｅｄ …     

新河高速公路边坡生物防护技术

根据新河高速公路独特的气候、地形、地质特征及工程建设情况,选择生物防护与工程防护加生物防护相结合的公路边坡综合防护方法,收到了很好的效果,值得大力推广。     

上向流生物沸石曝气滤罐处理景观水体的中试研究

该文针对景观水体的污染控制,以上向流生物沸石曝气滤罐进行中试试验,分析去除氨氮、藻类、CODMn和浊度的效果,优化工艺参数和操作条件。结果表明:高温期动态自然挂膜21 d后,由CODMn和氨氮去除率,以及微生物镜检判定,生物膜可达成熟;藻类易于爆发的高温期,在离子交换、物化吸附和生物降解的协同作用下,V类地表水经处理后可达到Ⅲ类,出水氨氮低于1.0 mg/L,CODMn约2.5 mg/L,溶解氧高于6.5 mg/L,藻类去除40%～60%,藻类生产潜力受到较好控制。     

粘性流体晃荡与弹性结构的相互耦合作用

提出了处理粘性流体晃荡与弹性结构相互耦合作用的理论及相应数值计算方法.流体运动采用N-S方程描述,控制方程采用有限差分法离散,并由超松弛迭代法求解.液体自由表面通过流体体积法进行重构.为了考虑液舱结构变形对液体晃荡的影响,应用了FAVOR技术.由此建立了描述液体晃荡与结构相互耦合作用的水弹性理论,并由相应的计算方法进行了系列运算,以考察二维液舱不同结构刚度对液体晃荡的影响.计算结果有助于进一步理解此类问题的物理现象.     

膜生物反应器在铁路单位生活污水处理中的应用

通过膜生物反应器在铁路单位生活污水处理的实例 ,对其工艺流程、运行参数、膜污染的控制进行介绍 ,分析其机理和特点。运行表明其处理效果达到《城市污水再生利用　城市杂用水水质标准》(GB/T1892 0— 2 0 0 2 )。     

浅谈高速公路的边坡生物防护

从环境保护出发阐述了高速公路边坡防护采用生物覆绿技术的重要性和必要性,同时对生物覆绿的前景作了一定的展望与总结。     

Improving the physics of a coupled physical–biogeochemical model of the North Atlantic through data assimilation: Impact on the ecosystem

Several studies on coupled physical–biogeochemical models have shown that major deficiencies in the biogeochemical fields arise from the deficiencies in the physical flow fields. This paper examines the improvement of the physics through data assimilation, and the subsequent impact on the ecosystem response in a coupled model of the North Atlantic. Sea surface temperature and sea surface height data are assimilated with a sequential method based on the SEEK filter adapted to the coupling needs. The model domain covers the Atlantic from 20°S to 70°N at eddy-permitting resolution. The biogeochemical model is a NPZD-DOM model based on the P3ZD formulation. The results of an annual assimilated simulation are compared with an annual free simulation.With assimilation, the representation of the mixed layer depth is significantly improved in mid latitudes, even though the mixed layer depth is generally overestimated compared to the observations. The representation of the mean and variance of the currents is also significantly improved.The nutrient input in the euphotic zone is used to assess the data assimilation impact on the ecosystem. Data assimilation results in a 50% reduction of the input due to vertical mixing in mid-latitudes, and in a four- to six-fold increase of the advective fluxes in mid-latitudes and subtropics. Averaged zonally, the net impact is a threefold increase for the subtropical gyre, and a moderate (20–30%) decrease at mid and high latitudes.Surface chlorophyll concentration increases along the subtropical gyre borders, but little changes are detected at mid and high latitudes. An increase of the primary production appears along the Gulf Stream path, but it represents only 12% on average for mid and high latitudes. In the subtropical gyre centre, primary production is augmented but stays underestimated (20% of observations). These experiments show the benefits of physical data assimilation in coupled physical–biogeochemical applications.     

Fisheries–Marine Protected Area–Tourism Interactions in Moalboal,Cebu, Philippines

The development of Integrated Coastal Management (ICM) in the Philippines has been underway for more than 30 years. As coastal communities continue to face dwindling resources from both the land and sea, marine protected areas (MPAs) have been regularly utilized as a community-based marine conservation tool. Recently, marine tourism has begun to exert influence as a driver utilized by local communities to promote the establishment of MPAs. Revenue generated through user-fee systems has begun to influence and shape broker–local–tourist (BLT) interactions in Moalboal, Cebu, Philippines. In this article, an account of the social dynamics surrounding MPAs is presented, sources of tension are identified, and recommendations proposed.