遥感在水面薄层研究中应用的可行性分析及其验证

从遥感测温的基本原理出发，结合发生在水面热力薄层内热结构变化的物理特征，分析了遥感技术用于监测水面薄层热结构垂直温度廊线与变化的可行性。据此，在气一水热力薄层的实验室模拟研究中得到了应用与验证，经实验证实这种新技术与常规手段结合可为水面热力边界层研究提供可靠的数据来源。由此认为，这一方法的研究将在微尺度海面过程、全球气候变化和水一气间能量通量研究中有着广阔的推广应用前景。     

无机高分子絮凝剂聚硫酸铁合成条件的研究

实验研究了以工业硫酸亚铁及废硫酸为原料,分别采用NaClo_3、KClO_3、H_2O_2及(o_2+NaNO_2)为氧化剂成聚硫酸铁的条件。在以(O_2+NaNO_2)为氧化剂的合成过程中,发现添加微量助催化剂(型号为HG-1、HG-2和HG-3),对提高合成速度及反应过程的稳定性具有重大作用。     

Characteristics of hydrostatic bearing/seal parts for water hydraulic pumps and motors. Part 1: Experiment and theory

In this paper, the load-carrying capacity, power losses and stiffness of disk-type hydrostatic thrust bearings including the case of eccentric loading are discussed theoretically. The numerical analysis method is established based on a two-dimensional elastohydrostatic problem with an elastic deformation model, which is extended to adapt it for a non-axisymmetric load acting on the thrust bearing. The bearing is made of a combination of stainless steel/stainless steel and stainless steel/plastics. For the elastic materials, the maximum stiffness derived from, i.e., minimum film thickness is, larger than that of the rigid material in the range of a large ratio of pocket pressure and a hydrostatic balance ratio of over unity, which is defined as the ratio of the load to the maximum hydrostatic load-carrying capacity. The maximum load-carrying capacity and minimum power loss can exist in the domain of the hydrostatic balance ratio over unity for the case of the bearing consisting of elastic/rigid materials, in comparison with that composed of the same rigid materials. For the case of water, the power loss due to leakage flow is slightly larger but that due to frictional torque is much smaller than that in the case of hydraulic oil. Then, the total power loss is much smaller than that of hydraulic oil.     

管道流体瞬态—水汽锤计算原理

文中介绍了核电站管道中流体瞬态——水汽锤的计算原理;既适用于液体介质的水锤计算,也适用于可压汽体的汽锤计算.对于一些典型管道部件的处理方法,文中也作了讨论。     

An experience of tunnelling in mudstone area in southwestern Taiwan

Many tunnels will be constructed in southwestern Taiwan in the upcoming decade to meet the huge demands of transportation, energy and water infrastructure projects. Mudstone strata cover more than a 1000 km² area, consisting mainly of massive mudstone or alternation of mudstone and sandy layer, exhibiting unfavorable geological and hydrological characteristics, making it extremely difficult for tunnelling. This paper presents the lessons learned from three tunnelling projects in the 1990s in a mudstone area. In addition to discussing the rock behavior in the vicinity of tunnel and its failure patterns, the monitoring data during tunnelling are presented as well. Finally, the effective method of design and construction are recommended for tunnelling in mudstone area.     

鄱阳湖控制浅说

该控制工程主要效益是改变鄱阳湖“夏水冬陆”的现状，成为祖国名符其实的第一大淡水湖，水面与避署胜地庐山和历史名城南昌、景德镇等相连，改善沿湖环境，发展航运，增加水产，开发利用丰富的水资源和旅游资源使之与杭州西湖、瑞士日内瓦湖等并列为世界名湖。     

引进意大利连续纺丝机车间空调节能设计

介绍了某化纤厂引进意大利十二台粘胶连续纺丝机车间与以往的纺丝车间相比,空调设计中的节能途径,体现了既满足工艺要求,又降低生产成本的设计目的。     

基于遗传算法和GIS技术的灌溉决策支持系统

通过先进的科技手段提高灌溉管理水平是现代农业发展的必然趋势，本介绍了一个基于遗传算法优化模型和GIS技术的灌溉决策支持系统。该系统由灌区信息管理模块，田间灌溉模拟模块，优化配水模块和GIS模块等组成，具有一定的智能性，通用性和可扩展性，界面友好，易于操作，为提高灌溉用水效率和灌溉管理水平，发展节水农业和精确农业，实现农业的可持续发展提供了一个可行的途径。     

位山引黄灌区泥沙淤积原因及处理对策

位山灌区是黄河下游大型引黄灌区 ,渠系泥沙淤积严重 ,泥沙处理困难。通过采用远距离输沙、集中处理沉沙区泥沙、分散沉沙和节水减淤等技术措施 ,减少了渠系的泥沙淤积。对清淤产生的泥沙 ,采取综合开发利用的技术和管理措施 ,取得了比较可靠的效果。     

基于人工神经网络的水洞试验装置的PID自动控制系统

在水洞试验中，通过水泵及收缩段的形状控制水洞的运行过程，以保证水洞的稳定运行，并保证所进行的各种试验的质量。PID调节是最常见的一种。文章给出了一种基于人工神经网络实现自学习PID控制方法。利用该方法可以较好地实现水洞的控制。