四川南向通道改造及建设的方案研究

研究目的：通过分析西南路网现状和存在问题，对四川出川通道进行规划展望，提出四川南向通道建设的必要性和迫切性，进一步探讨建设川南通道的方案和通道引入相关枢纽及地区的改扩建方案。 研究方法：采用系统工程方法，从西南片区铁路路网的特点分析，逐一分析出川通道的规划和发展；采用技术经济比较法对南向通道方案进行比较论证。 研究结果：在西南片区形成沟通广东广西地区的一条新路网，有利于西南路网布局及发展；带动相关地区社会经济发展；为相关枢纽总图布置特别是成都枢纽客运站布局提供合理的发展前景。 研究结论：四川南向通道宜采用沿成昆通道至峨眉，修建峨眉经宜宾、叙永至贵阳的双线大能力通道，经黔桂铁路至柳州，分别经湘桂线南下广西地区，经柳肇线可达广州及东南沿海地区；成都枢纽成都南站可作为川南通道客车的始发终到站；贵阳枢纽结合川南通道引入需新建枢纽内第二客运站。     

信息系统综合集成技术

综合集成作为我军实现新军事变革的重要方法，越来越受到各方面的广泛重视，首先概要介绍了综合集成的理念和实现的三个层次，着重分析介绍了信息系统综合集成中相关软件技术的发展和应用。     

焊接钢结构现场施工质量与工艺控制

针对焊接钢结构现场施工过程中,以大运高速公路康庄服务区大型加油广场的钢结构施工为实例采取的一些新技术措施等进行阐述和总结。     

Organic carbon budget for the Gulf of Bothnia

We calculated input of organic carbon to the unproductive, brackish water basin of the Gulf of Bothnia from rivers, point sources and the atmosphere. We also calculated the net exchange of organic carbon between the Gulf of Bothnia and the adjacent marine system, the Baltic Proper. We compared the input with sinks for organic carbon; permanent incorporation in sediments and mineralization and subsequent evasion of CO₂ to the atmosphere. The major fluxes were riverine input (1500 Gg C year^− 1), exchange with the Baltic Proper (depending on which of several possible DOC concentration differences between the basins that was used in the calculation, the flux varied between an outflow of 466 and an input of 950 Gg C year^− 1), sediment burial (1100 Gg C year^− 1) and evasion to the atmosphere (3610 Gg C year^− 1). The largest single net flux was the emission of CO₂ to the atmosphere, mainly caused by bacterial mineralization of organic carbon. Input and output did not match in our budget which we ascribe uncertainties in the calculation of the exchange of organic carbon between the Gulf of Bothnia and the Baltic Proper, and the fact that CO₂ emission, which in our calculation represented 1 year (2002) may have been overestimated in comparison with long-term means. We conclude that net heterotrophy of the Gulf of Bothnia was due to input of organic carbon from both the catchment and from the Baltic Proper and that the future degree of net heterotrophy will be sensible to both catchment export of organic carbon and to the ongoing eutrophication of the Baltic Proper.     

鱼雷航速航程与动力电池功率容量的关系

本文讨论电动鱼雷主要性能参数与其动力电池参数之间的关系。提出了综合功率系数概念及计算方法。综合功率系数愈小，推进系统的整体性能愈好。提高功率密度特别是提高体积功率密度对于减小综合功率系数非常重要。     

城市轨道交通企业局域网建设探讨

通过介绍上海地铁运营有限公司车辆分公司计算机网络的组建和企业管理信息系统的开发和应用,阐明了企业计算机网络建设和计算机信息管理系统在地铁车辆管理中的重要性。并对轨道交通企业中建设网络和开发管理信息系统需要重视的几个问题及其解决的方法作了探讨。     

The association of the population recruitment of gulf menhaden, Brevoortia patronus, with Mississippi River discharge

Gulf menhaden, Brevoortia patronus, which constitutes a major industrial reduction fishery in the USA, spawn across the northern Gulf of Mexico with a focus of spawning about the Mississippi Delta. This species is estuarine dependent; adults spawn over the continental shelf and their larvae are transported, by mechanisms that are presently not well understood, to estuarine nursery areas. Larval gulf menhaden, along with some other surface oriented larval fishes, appear to aggregate along the Mississippi River plume front, while evidence of the ecological consequences of this aggregation in terms of the feeding, growth, and survival of larvae is ambiguous. On an annual scale, Mississippi River discharge is negatively associated with numbers of half year old recruits. Discharge of the Mississippi River and the population recruitment of gulf menhaden may be plausibly linked through the action of the river's plume and its front on the shoreward transport of larvae. Greater river discharge results in an expansive plume that might project larvae farther offshore and prolong the shoreward transport of larvae. An indirect, decadal scale, positive response of recruitment and river discharge is possible, but not certain. Recruitment became elevated after 1975 when river discharge increased and became highly variable. This response might owe to enhanced primary and secondary production driven by nutrient influx from the Mississippi River.     

海图信息的压缩与恢复

用形态学方法对海图信息进行压缩和恢复，然后用游程编码对骨架进行编码和解码，达到用最少的空间存储最多的信息。     

集装箱龙门起重机微机控制系统

本文介绍了将微型计算机应用于集装箱起重机自动控制系统的设计思想和方法。在该系统中，以集装箱起重机为控制对象，用单板机作为控制器，通过传感器，驱动放大电路及接口芯片等构成一个完整的自动控制系统。此系统基本实现了集装箱起重机的自动控制，并给集装专用吊具与集装箱迅速准确的自动对位带来好处。     

200km/h客货共线单线隧道内接触网设计探讨

通过对遂渝线单线隧道内接触网悬挂的介绍,探讨了以新的设计方式进行速度200 km/h客货共线隧道内接触网平面设计的方法,并通过遂渝线情况的研究,对下一步的设计提出了建议。