Environmental Issues of Geothermal Development in Yangbajing, Tibet and the Countermeasures

The pollution source and pollution state of surface water is respectively assessed with equal-standard-pollution-load index and Nemero index, and the habitans' health is assessed as well by comparison with pre-development of geothermal field. Results show that: 1 ) Three pollutive factors obviously fail to attain the required standards and their order sorted by impact degree is As＞F- ＞S2-. 2) The Nemero index of Donggua cross section of Duilongqu River is 0. 725and the water quality is at mildly-polluted level. 3) In Lhasa River, the Nemero indexes of cross sections affected by geothermal fields are much higher than that of the unaffected one, which shows the present and potential impacts of geothermal development. 4) Much more inhabitants nearby got trichomadesis sickness after geothermal development, which shows that the surface water pollution in this area has threatened the inhabitants' health. In addition, other environmental issues caused by Yangbajing geothermal development are analyzed and some countermeasures are proposed.     

石油微观渗流数值模拟实验

应用基于骨架隐曲面造型技术，构造了一种抽象的孔隙空间模型，在此基础上运用系统模拟技术开发了一个石油微观运移数值模拟实验平台，用于模拟和展示石油在饱含水孔隙介质中的运移过程，并验证了以浮力为主要运移动力的动力学模型的适用性。     

雷达/红外双模制导背景下的模糊目标跟踪器

在雷达／红外双模制导背景下，对雷达／红外传感器的测量数据进行融合并提出了一种跟踪机动目标的模糊跟踪器。该跟踪器能够精确的获取目标机动的动态信息，应用一系列的模糊规则自适应的调整卡尔曼滤波器的过程噪声协方差矩阵，从而更适合用于实际的跟踪系统。通过对红外成像和雷达多传感器对目标跟踪系统的数字仿真表明所提出的模糊跟踪器性能良好。     

原油掺炼及其应用

石油掺炼作为石油精馏的一部分，对整个石油精馏具有重要意义。最佳掺炼比可通过实验、软件模拟等方法得到。通过对最佳掺炼比的实验及软件的分析发现国内外研究石油掺炼的模拟软件操作原理和步骤基本相同，利用各模拟软件掺炼后所给油品物性的可换算性，可用不同软件分别对掺炼和下游工序进行模拟。     

r序同态与r开集在子拓扑空间中的性质

提出了r不定序同态、r连续序同态、r开序同态并讨论了它们之间的相互关系,得出了LF-r开集在开子空间中仍是LF-r开集,两个LF拓扑空间之间序同态r连续的充要条件等结论。     

Impoverishment of Soil Nutrients in Gully Erosion Areas in Yuanmou Basin

The impoverishment of soil nutrients of nine gully head areas in Yuanmou Basin is assessed through an integrated evaluation method established on the basis of Fuzzy mathematics and multivariate mathematical theory. Results show that soil erosion of gully erosion area in Yuanmou basin has resulted in severe impoverishment of soil nutrients. All gully head areas are at high leves of impoverishment except for one at middle. By probing into and analyzing the mechanism of impoverishment of soil nutrients, we find that soil erosion has led to impoverishment of soil nutrients in a way of compacting soil, heightening position of obstacle horizon, and reducing the content of organic matter, as well as the direct loss of nutrient elements. Finally, this paper points out that soil and water conservation arming at the prevention of soil erosion is the most effective way against impoverishment of soil nutrients in Yuanmou basin.     

降水量自动采集中的干扰分析和处理

介绍了降水量测量的几种方式和翻斗式雨量计的计量原理，并针对翻斗式雨量计使用过程中的出现的问题作了分析，给出了几种解决的方法。     

Windows 2003 Server中IPSec的工作原理

介绍了IPS茂的应用范围和IPSec安全协议的工作原理．如验证报头（AH）封装安全措施负载量（ESP）．Windows 2003 IPSec通过与站点、域、组织单元和本地计算机相关的组策略来配置．     

杂交鹅掌楸生长表现及其木材胶合板性能

调查2~3年生苗期不同交配系统杂交鹅掌楸、10~12 年生和 22 年生杂种林分的生长量,发现杂种具极显著的生长优势。10~12年生杂种林分在湖北、湖南和江苏三地的生长表现说明了杂种具较强的适应性和抗逆境能力;22年生的解析木分析表明鹅掌楸和杂交鹅掌楸主干明显,通直圆满干形好;从材积生长、平均生长量和连年生长量曲线看,杂交鹅掌楸比鹅掌楸更早进入速生期,同时发现22年生时鹅掌楸和杂交鹅掌楸均处于中、壮龄期,未达生长最高峰。经对4种规格的杂交鹅掌楸胶合板胶合性能测定,得知杂交鹅掌楸胶合板符合Ⅰ类胶合板标准的胶合性能要求。     

μC/OS-Ⅱ在军用FM80386EX处理器上的移植应用

嵌入式实时操作系统uC／OS-Ⅱ公开所有的源代码，90％的代码使用标准的ANSIC语言书写，它体积小、执行速度快，具有良好的可裁减性和可移植性．作为一种多任务实时操作系统，uC／OS-Ⅱ具有较高的可靠性和实时性，能满足对实时性和可靠性要求较高的嵌入式系统．通过详细研究uC／OS-Ⅱ的特点和内核结构，完成了uC／OS-Ⅱ在军用FM80386EX上的移植并给出了相关代码，同时对内核进行测试、数据分析，对内存管理、代码临界区、信号量机制提出了改进方法．移植成功后，uC／OS-Ⅱ可实时完成各个任务的调度，通过嵌入式操作系统uC／OS-Ⅱ在各个任务间实现通信，用户可以根据需要完成自己的多任务操作．