金融组织强制性信息披露问题研究

由于规模经济的原因,作为信息劣势方——投资者公共利益代表者的政府必然成为强制性信忠披露的主体。政府按照参与约束原则和激励相容原则进行机制设计甄别金融组织,引导其确定合理的信忠披露边界,形成分离均衡,金融市场上的非对称信息转变为对称信息。但政府强制金融组织进行信息披露时,应尊重其利益追求和考虑金融市场发育程度等。     

关于重力坝坝内细部构造设计的几个问题

重力坝常采用横，纵缝将坝体分为柱状体施工。为此，横缝须设置止水，纵缝则待坝体冷却后灌浆，将柱状坝块连成整体。此外坝体内部还须设置坝面排水管以消除坝内渗透压力。关于坝内这些细部构造，设计规范仅有原则性要求，一般专业书列举不多，目前有些工程往往参照已建工程的设计图采用，常由于施工详图不祥易发生施工质量问题。根据丹江口重力坝设计经验，对接缝灌浆中的键槽，止浆片，灌浆管道，出浆盒，排气槽及排气管，基岩陡坡     

应用图论及广义简约梯度法进行压力管网优化设计

广义简约梯度法(GRG)是非线性规划算法中最有效的算法之一，本文把图论应用于广义简约梯度法优化的过程中，使输入简便，计算简化，应用GRG算法对武汉市的汉阳管网进行了模拟优化设计，并对管段的计算管径用线性规划法进行标准化，取得了满意的结果     

Software for Learning and for Doing Statistics

The community of statisticians and statistics educators should take responsibility for the evaluation and improvement of software quality from the perspective of education. The paper will develop a perspective, an ideal system of requirements to critically evaluate existing software and to produce future software more adequate both for learning and doing statistics in introductory courses. Different kinds of tools and microworlds are needed. After discussing general requirements for such programs, a prototypical ideal software system will be presented in detail. It will be illustrated how such a system could be used to construct learning environments and to support elementary data analysis with exploratory working style.     

多目标模糊全局优化设计方法和软件

分析了优化设计在土木工程中应用不够广泛的原因，由此提出了一个能用于工程设计的多目标模糊全局优化设计方法。介绍了按该方法研制的软件ＭＦＤ的功能和性能，以及一个用该软件分析的拱坝体型设计实例。     

虚拟设备驱动程序的开发设计

深入分析了 Windows9x的虚拟机环境 ,Vx D技术的文件结构及其消息处理 ,介绍了 Vx D常用开发工具。最后给出了一个 Vx D例程     

Impact of dams on point bar habitat: a case for the extirpation of the Sacramento Valley Tiger Beetle,C. hirticollis abrupta

Quantitative analyses of flow and stage data, remote sensing and geographic information systems analysis, and field studies were used to assess the impact of dams and diversions on the point bar habitat of the Sacramento Valley Tiger Beetle (Cicindela hirticollis abrupta). The reaches of interest include sites of known historic populations of C. h. abrupta along the Sacramento River from approximately 8 km north of Colusa southward to the confluence with the Feather River and along the Feather River between Yuba City and its confluence with the Sacramento River. The results from this study show that construction of two major dams has altered flows such that prolonged and increased flows during summer, fall, and early winter have most likely disrupted life cycles, flooded larvae, drowned overwintering adults and led to high mortality. Additionally, habitat availability has decreased over time because point bars have decreased in number and area causing increased distances between populations and isolation of populations. Moreover, point bar armouring, channel scouring, altered flows, redirected flows through weirs, and lithologic controls have produced a bimodal distribution of mean grain sizes in the Sacramento River in which the more northern bars contain gravel deposits and more southern bars possess fine sands. These conditions negatively alter moisture retention and sediment compaction and, consequently, burrowing conditions needed by this tiger beetle. Additionally, more stabilized flows (reduced variability) and increased fine‐grained deposition have enabled development and encroachment of vegetation onto the sand bars. Finally, human stresses, such as foot traffic and vehicular traffic may have interfered with burrowing, ovipositing, and foraging. The combination of these stress factors has most likely led to a reduction in source populations and, ultimately, the apparent extirpation of the entire metapopulation. Copyright © 2006 John Wiley & Sons, Ltd.     

水磨沟倒虹吸管工程设计

水磨沟倒虹吸管是甘肃省引大入秦灌溉工程总干渠上的大型跨沟建筑物，为双管桥式倒虹吸，具有工作水头高，输水流量大，管线长，管径大的特点，其综合工程规模位居国前列，6年的运行实践证明，工程设计合理，运行可靠。其工程设计的成功经验对类似工程具有参考价值。     

水力自动翻板闸门的瞬心轨迹及其对稳定性的影响

分析了连杆滚轮式水力自动翻板闸门的运动轨迹，并由此得出闸门动、静坐标系间的转换关系．结合翻板闸门的运转机理，探讨了闸门在运行过程中的瞬心轨迹线及其对闸门稳定性的影响．结果表明，通过优化闸门结构可调整“瞬心”的位置，保证闸门运转的稳定性．     

混凝土喷锚技术在宝珠寺水电站边坡防护中的应用

混凝土喷锚支护可提高边坡岩土的结构强度和抗变形刚度,增强边坡的整体稳定性和承载能力.本文根据宝珠寺水电站左右岸边坡主要采用混凝土喷锚支护的工程实践,介绍了施工方案设计、材料要求、施工方法、技术措施,以及现场质量管理和检测等问题.