23t轴重新型货车对驼峰运营及设计的影响分析

根据2005年对23tN重新型货车在7个编组站的驼峰溜放试验结果，就新型货车溜放的基本阻力计算、易行车车辆类型选择、减速器及减速顶对新型货车的适应性提出了一些看法和建议。     

Inshore Stocks of Atlantic Cod Are Important for Rebuilding the East Coast Fishery

Cod (Gadus morhua) inhabit not only the famous fishing banks of the Northwest Atlantic continental shelf, but also inshore waters from Labrador to New England. Relatively little is known about the life history of inshore cod, their historic levels of abundance, and their relationship to offshore stocks. Inshore cod stocks along the East Coast should be managed under a new paradigm that recognizes the importance of these fish to the stock complex. Recently documented fishers' ecological knowledge (FEK) suggests inshore stocks of cod may exist along the Newfoundland and Labrador coastline that have yet to be scientifically documented. Coastal communities adjacent to the local population of cod in Gilbert Bay, Labrador have initiated efforts to protect and manage this stock locally through a co-management approach. The Gilbert Bay experience, FEK, and related science and education could provide insight into ways to protect and enhance the health of local stocks remaining along the northeast coast of North America.     

40自升式钻井平台桩腿加长实践

平台老龄化已成为中海油服钻井装备发展的瓶颈,船龄在30年以上的平台已占现有平台的30%～40%。如何充分发挥这些平台的作业能力,使其在原有设计的基础上,进行重新评估,改造提升其作业能力及适应范围,使其能完成典型区域的作业,已成为重要课题列入装备管理的日程中。本文主要介绍了一国产平台通过论证、计算并对桩腿进行加长,使其在满足作业环境工况及设计规范情况下,适应了作业任务。     

随机型存储模型应用研究

研究不确定性因素下随机库存模型中的多时期存储控制系统,着重分析连续盘存的存储控制系统在不同情况下确定的安全库存量的最优采购策略,通过建立模型得出最优解,最后通过算例表明这种方法的优越性。     

铁路车辆厂含油生产废水的处理及回用

结合工程实例 ,介绍利用隔油沉淀气浮过滤处理工艺 ,对铁路车辆厂含油废水处理及中水回用