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Research on water hammer with gas in pressure conduit system Through physical experiments, researches on pressure conduit system with gas releasing and liquid column separating, which consist of observing flow patterns, testing the conditions under which liquid column separation brings into existence and the water hammer in water interception collision, and studying effects resulting from gas content and different water velocities in pipeline, was done.

输水管道系统中含气水锤研究通过物理试验，对有压输水管道系统中的气体释放与液柱分离进行了研究，观察其流态、测试液柱分离发生的条件及断流弥合水锤压力，研究了含气量、流速等参数对液柱分离的影响。

Based on the data from heat water experiments for counter flow and cross flow cooling tower in laboratory with different water flow rate, air flow rate and water falling height, the equivalent diameters of water drop under corresponding conditions are obtained.

在逆流式冷却塔中，水的冷却分三部分：喷头、填料、雨区。但是，在进行填料的模拟试验中，要把上述三部分的热力特性分开，是很困难的。

Based on the data from heat water experiments for counter flow and cross flow cooling tower in laboratory with different water flow rate, air flow rate and water falling height, the equivalent diameters of water drop under corresponding conditions are obtained.

本文首先通过不同淋水高度、淋水密度、过塔风速等的逆流及横流试验塔的热水试验，求出相应条件下的淋水水滴当量直径，再在工业塔的条件下，利用水滴散热公式，计算出雨区散热效果，化为无因次数-冷却数，作出图及计算公式。

The results show that the water breakthrough time shortens with the increase of the horizontal well length. Under the same well space and production conditions, the water breakthrough time of five-spot pattern is longer than that of seven-spot and nine-spot pattern. With the increase of angle between the horizontal well and the horizontal direction, the water breakthrough time shortens in five-spot well pattern, firstly increases and then decreases in seven-spot pattern, and increases in nine-spot pattern. The influence of reservoir and fluid parameters on the water breakthough time is little.

计算结果表明，井网的见水时间随水平井长度的增加而缩短；相同的井距和生产条件下，五点法井网的见水时间要长于九点法和七点法井网；随水平井与水平方向夹角的增大，五点法井网的见水时间缩短，七点法井网的见水时间先增加后缩短，九点法井网的见水时间增加；油藏和流体参数对井网见水时间影响不大。

Service project 1, pipe clean-up: 22,819,364 (1) cleaning of septic tanks, oil-water separator tanks, sewage treatment and cleaning of pool building water tanks, cisterns, swimming pools (2) cleaning because of animal and plant oils, viscous materials such as manure, sludge and litter caused by blockage of the inflow of municipal pipelines II dredge pipeline:(1) municipal pipelines: available in large-scale machinery, a variety of director dredge Road, municipal sewer pipes and other large-scale (2) industrial pipe: Factory, Sheung Shui, pipelines, water pipelines, ship pipeline dredging, cleaning, repair services (3) bath basin: to clear the various models of bath, basin, vegetables pool, including the V-bends and S-type bends all kinds of pipe (4) toilet: dredge a result of rags, towels, cleaning ball, etc. burst into a variety of soft and hard goods caused by plugging the toilet (5) to leak: dredge a result of cement, sand, hair, cloth and other debris into the floor drain caused by the plug (6) Zun pit: pit long service life inside alkaline urine thickening, under the water, small, slow flow easily plug three.

服务项目一、管道清理：22819364(1)清理化粪池、油水分离池、污水处理池及清洗大楼水箱、蓄水池、游泳池(2)清洗因动植物油脂、粪便等粘稠物、淤泥和垃圾流入造成堵塞的市政管道二、管道疏通：(1)市政管道：备有大型机械，疏通各种主管道、市政管道及其他大型下水道(2)工业管道：工厂上水管道、下水管道、船舶管道的疏通、清洗、维修服务(3)浴缸面盆：疏通各种型号浴缸、面盆、菜池，包括V型弯和S型弯各种管道(4)马桶：疏通因抹布、毛巾、清洁球等各种软硬物品冲进马桶所造成的堵塞(5)地漏：疏通因水泥、沙子、头发、抹布等各种杂物掉入地漏所造成的堵塞(6)墫坑：蹲坑使用年限久了，里面尿碱变厚，下水量小、流速慢，极易堵塞三。

This paper has made systematic research about characteristics of soil water dynamic changes, water deficit of the root-zone of pear-jujube tree with regulated deficit irrigation, physiological control in the process of the water use and the stomal response mechanism of pear-jujube tree under the water deficit environment, and the effects of different deficit irrigation levels at different growth stages vegetative growth and repproductive growth of pear-jujube trees, and also its regulation mechanism.

针对西北半干旱区果业生产面临水资源紧缺的现实，论文以该区特色经济果树梨枣树为研究对象，在西北农林科技大学旱区农业水土工程教育部重点实验室、陕西省大荔县城关镇梨枣园分别开展了温室与大田试验，对调亏灌溉的梨枣树根区土壤水分动态变化特征、水分亏缺与复水环境下梨枣树用水过程、生理调控与气孔响应机理、不同生育期不同水平亏水处理对营养生长与生殖生长的影响及其调控机制等进行了较系统的研究，分析了各生育期不同亏水处理对梨枣耗水规律、产量、品质、作物系数、水分利用效率及经济效益的影响，取得了以下成果：⑴通过亏水处理与复。。。

By using the basic principle of soil hydrodynamics,this paper designs the indoor experiment of soil water infiltration under surge furrow irrigation ,and in the light of the influence of the different water-supplying times,circulating ratios and periods on the soil water infiltration process,determines some parameters related to the soil water movement.

应用土壤水动力学的基本原理，设计了波涌沟灌条件下水分入渗的室内试验，针对不同供水时间、循环率及周期对土壤水分入渗过程的影响，测定土壤水分运动有关参数。

First, by the allocation of irrigation water directly into the ditch outlet Xiaqi, achieve no water loss, greatly improve the utilization of water; are two irrigation systems, replace the pipe with water furrow, not square, and the right to re-use, reducing the irrigation investment; Three is the use of the gate with the outlet opening to adjust a constant and accurate control of flow into the trench plot, for different soil and different groove specifications Xiaqi can greatly improve irrigation uniformity; four gates are porous pipe irrigation system for the flow tubes, and the blind to cross the flow tube as compared to the wall can reduce the work under stress, and reduce the damage to the opportunity to prolong the service life of thin-walled tube; are five gates to facilitate the installation of irrigation systems, pipes, and, upon request, to fight孔安outlet assembly to ensure the accuracy of positioning with the outlet.

一是灌溉水经配水口直接进入沟畦，实现无输水损失，极大地提高了水的利用率；二是管灌溉系统代替配水垄沟，不占地，且右重复使用，降低了灌溉投资；三是利用配水口的闸板开度来调节准确恒定地控制进入沟畦的流量，适用于不同土质和规格不同的沟畦，可大大提高灌水均匀度；四是闸管灌溉系统为多孔出流管，与等过流量的盲管相比，可降低管壁承受的工作压力，并减少受损机会，从而延长薄壁管的使用寿命；五是闸管灌溉系统安装方便，并可根据要求打孔安装配水口，确保配水口定位的准确性。

In the paper, adsorption equilibrium and kinetics of water in the solvents of benzene series and low-carbon alcohol on 3A zeolite molecular sieve were studied including effective pore size of zeolite, adsorbate concentration and temperature. The mechanism and characteristics of water adsorption in such systems, the effect of solvents to adsorption equilibrium and kinetics of water were discussed, and diffusivities of water under different conditions were obtained.

论文研究了苯系列物质—水体系、低碳醇—水体系中水在3A沸石上的吸附动力学，考察了沸石晶格窗口大小、吸附质浓度、温度等因素对吸附动力学的影响规律；分析了吸附机理以及两类体系的特点；通过数学模型对实验数据的拟合，求取了各种条件下的动力学参数；研究了两类体系的溶剂对吸附平衡和动力学的影响。

Above-water remote sensing reflectance and scattering extinction coefficients of water were derived by modeling radiative transfer across the water-air interface with in situ measured water quality data and beneath water spectral reflectance measurements in Lake Tai.

利用太湖水质参数数据、水面以下实测光谱数据以及水-气界面辐射传输模型，计算得到了水体漫射衰减系数和水面以上遥感反射比，探讨了悬浮物对水体中营养盐以及水下光照等水体环境因子的影响，在此基础上，利用水面以上遥感反射率建立了悬浮物浓度的定量反演模型。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。