Experimental Study about Activated Water Generated by Electro-hy draulic Impulse Improving the Mechanical Performance of Concrete

A new good idea named Electro-hydraulic Impulse is described in the paper. Electro-hydraulic impulse is a process which integrates strong electrical field, strong magnetic field, ultrasonic wave, radiation of light and cavitation. With it, a kind of water named strongly polar activated water is generated. Using strongly polar activated water to make concrete blocks, the mechanical performance of concrete can be improved greatly. With the proper parameters, the compression strength of concrete can be increased by 48% percent. This has been proved by some experiments.     

Experimental Study about the Plasma Activated Water on the Performance of the Concrete

A new good idea to improve the performance of the concrete by plasma activated water is put forward. The work principle of electrohydraulic impulsed technolaqe for producing plasma activated water is introduced. Some experimental data of improving the performance of the concrete by the plasma activated water are reported. The study shows that improving the performance of concrete by plasma activated water is practical and the view points provided by the authors is correct.     

Experiment on Activation of Black Soil by Electro-hydraulic Impulse

The activation of black soil (analog the lignite) by electro-hydraulic impulse is proposed. The abundant insoluble nitrogen, phosphorus, potassium and other organic elements in black soil are activated as the green fertilizer by this way. The new method is provided for activating sludge produced by treating wastewater. For several kinds of black soil, the experiment result indicates that electro-hydraulic impulse increases the percentage of absorbable nitrogen by 1 to 4 times and the percentage of insoluble organic elements by 4 times, which is a valuable reference to sludge treatment.     

Experimental Study on Flexural Behavior of Reinforced Concrete Beams Strengthened With Ferrocement Mortar

Experimental research on flexural behavior of the different grade RC beams strengthened with ferrocement mortar through six RC beams is carried out. The matching of original component concrete to the composite mortar strength rank is studied and its influence on bending strength, the crack-resisting capacity and the bending stiffness of RC beams is analyzed. Based on plane cross-section assumption and the experimental results, the formulas of the theoretical ultimate strength capacity and stiffness are brought forward. The calculated results fit well with the experimental results, to provide a theoretical reference for actual engineering designs.     

Experimental Analysis on Mechanical Characteristic Effect of Mortar Specimen Sbujected to Hydrochloric Damage Under the Triaxial Stress

Triaxial compression tests of mortar specimens under various hydrochemical environments were carried out. The effects of the pH、concentration and composition of chemical solution on the corrosiveness and micro/meso structure of the mortar specimens were evaluated. The hydrochemical corrosion mechanisms of the mortar specimens were explored and the results revealed further influence of various hydrochemical actions on physical and mechanical parameters of the mortar specimens. A new damage parameter was proposed based on the mortar secondary porosity caused by chemical corrosion, which can quantify the evolution process of the physical & mechanical parameters of the mortar specimens during its hydrochemical damage.     

Experimental Study on the Frictional Performance of Water Lubricated Plastic Alloy Bearings

It''s difficult to form hydrodynamic lubrication because of the low viscosity of water, but it is founded by experiment that there is low co-friction on water lubricated plastic alloy bearings working. The main factors that affect co friction are revs, loaded and clearance. Significance and effect of every factor that affect co friction is analyzed by variance analysis and orthogonal experiment. goaphs of every factor that affect co friction are list. From the goaphs, it is founded that there is elastic hydrodynamic because of elastic deformation in the plastic alloy.     

工厂化豆芽生产回收水的臭氧生物活性炭技术净化效果研究

为了研究臭氧生物活性炭技术对豆芽工厂化生产过程回收水中有机物及部分无机物的去除效果,及不同水质对豆芽品质的影响,模拟豆芽工厂化生产工艺,用不同水样进行发芽试验,对不同水质及豆芽品质进行方差及相关性分析。结果表明,本试验处理工艺对总磷、COD、总有机碳去除率分别为50.90%、60.19%、67.51%,对无机盐铁、硝酸盐、亚硝酸盐、硫酸盐、磷酸盐的去除率分别为80.68%、22.84%、55.17%、21.46%、42.67%。豆芽的产量、下胚轴长、下胚轴粗及根长与水中总磷、COD、总有机碳及硝酸盐、亚硝酸盐、磷酸盐含量呈极显著负相关（P<0.01）。臭氧生物活性炭技术可有效去除工厂化豆芽生产回收水中的有机物、部分无机物,净化水各项指标基本达到《生活饮用水卫生标准》,回收水及净化出水均某种程度上降低了豆芽的品质,不同水质对豆芽品质的影响较大。     

Structure and Performance of the Interface Zone between Mortar and Aggregate in Cement Concrete

The interface zone between mortar and aggregate influences overall performance of concrete and is an important issue for concrete research. Focusing on the structure and performance characteristics of the interface zone in cement concrete, the development of interface research in P. R. China and elsewhere were reviewed. The research aspects discussed included interface structure and performance, study techniques, interface improvement methods, and the influence of the interface on overall concrete performance. The influential factors of structural characteristics and interface zone performance, together with both microscopic and macroscopic research techniques, were summarized. The reasons for differences in interface zone structure and performance, and its degree of influence on the overall concrete performance were analyzed. Methods for improving the interface zone were generalized, including using an interface with slag powder as inorganic material and one with an organic coupling agent. Keys to research and future directions were proposed.     

Study of the Digital Measurement Tachnique and Apparatus for Impulse High-Voltage

A digital measurement apparatus is developed for Impulse high voltage. Ine ap paratus composes of a high speed A/D converter(20 MHz),a single-chip computer interface and some other high speed analog intergrated circuits with excellent function,It is characteristic of flxing transient waveforms,storing,processing and analysing waveform data measuring maxi-mum value of impulse high voltage.     

Influence of Polypropylene Fiber on the Performance of Thermal Insulating Mortar Made from Expanded Polystyrene Particles

The influences of the types, dosage and length of fibers on EPS thermal insulating mortar were studied. The results show that the addition of fibers have obvious reinforcing effects on EPS thermal insulating mortar. With the addition of polypropylene fib     

提高牛肉持水性初探

肌肉持水性是评价肉品食用品质和经济价值的重要指标之一,如何提高肌肉持水性具有重要意义。通过添加不同增稠剂的单因素试验,从而确定最佳添加量,并进行正交试验,确定显著提高牛肉持水性的最佳组合添加量为黄原胶0.4%,交联淀粉1.0%,海藻酸钠0.3%。     

Experimental Study on Improving the Biochemical Character of Late Leachate by Electrochemical Method

Electrolytic oxidation can remarkably improve the biochemical character of late leachate under the condition of aeration. Test result indicates that the biochemical character of late leachate can be improved from 0.11 to more than 0.30 under the condition when the electrical density is 15mA/cm^2 and the electrolytic period 6.5 hours.     

Hydration Heat Evolution and Setting Performance of Alkali-slag Cement Activated with Water Glass

The effect of dosage and modulus of water glass on the early hydration and setting performances of alkali-slag cement is very important. The variation of hydration heat and setting time and compressive strength of the alkali-slag cement with its modulus and alkali content are studied. It is found that with the increase of modulus, the hydration heat decreases and the setting time prolongs gradually, and the compressive strength increases first, then decreases. When the dosage of Na2O increases, the hydration heat increases. And the setting time increases slightly and the compressive strength shows the trend of increasing. The reasonable modulus of water glass Ms is about 1.0~2.0, and the dosage is about 3%~6% of the mass of slag.     

鸡胸肉蒸煮失水率影响的研究

研究几种盐对鸡胸肉蒸煮失水率的影响,在此基础上进行了正交实验,影响鸡胸肉蒸煮失水率的显著因素为柠檬酸钠和三聚磷酸钠。验证实验表明,最佳复合配比可使鸡胸肉的蒸煮失水率比对照降低20%。     

Study on the Lime Shape in the Essential System of Activated FA with Water Reducer

This paper studies the lime shape in the essential system of activated FA with water reducer.It shows that the water reducer has passive influence on activation of FA when lime is unslaked,and it will have positive influence when lime is slaked.A primary analysis has been done.     

Calculation Method of Hydraulic Characteristics for Direct-Return Chilled Water System

In order to optimize design and operation, it is necessary to calculate accurately hydraulic characteristics large central air-conditioning systems. Simplified Model can not be applied to hydraulic calculation of large pipe network topological structure for its large calculation error. Taking into account the regulating characteristics of terminal branch temperature regulating valve, a direct-return chilled water system is studied, an accurate mathematical model of pipe network hydraulic characteristics has been established and a computer logic algorithm with virtual flow has been given. A direct-return pipe network with ten AHU branches is used as simulation calculation object, the pipe network supply-return water pressure difference is calculated, and also the temperature regulating valve opening and actual flow of each branch are calculated in the condition of different supply-return water pressure difference. The calculated results accord with the natural characteristics of high pressure difference unbalanced for direct-return pipe network. The calculation method can ensure calculation convergence.     

污水处理厂再生水灌溉对土壤中重金属污染的试验研究

再生水灌溉是解决水资源短缺的潜在途径之一,关于再生水灌溉条件下土壤中重金属的迁移行为及其对表层土壤的污染风险至今仍缺乏研究。通过不同水体浇灌蔬菜的试验研究,相比较污水浇灌和自来水浇灌,再生水灌溉不仅对土壤没有污染,也极大的节约了水资源成本,并为蔬菜提供了大量的生长元素。结果表明,浇灌60天后,再生水中的Cr、Cd、As、Hg、Pb、Ni、Zn和Cu在土壤中有一定的富集,但随着淋溶时间的延长,各种重金属浓度保持不变;再生水浇灌的土壤在垂直迁移上的浓度变化也不大,基本呈水平趋势;与土壤环境质量标准(GB15618—1995)相比,再生水浇灌后的土壤没有额外超标,优于蔬菜种植的土壤标准要求。     

Experimental Analysis on Optimal Tail Water Discharge Method of River Water Source Heat Pump

In order to study the influence on water temperature raise of river water source heat pump tail water discharged in different methods, the real sensor network is established by using digital temperature sensors. The simulation experiments of different discharging methods of river water source heat pump are carried out, including submerged-type discharge, surface-type discharge and jet-type discharge with 12 effluent ways. By using weighted average method, the preferred values of such factors as the average temperature raise,the temperature raise variance, the biggest temperature raise value, and the number of temperature measure points above the temperature raise average value are calculated. Moreover, the experiment results are analyzed by the three-dimensional figures of water temperature raise, which shows that jet-type discharge is better than submerged-type discharge and surface-type discharge,and the double-port way is better than single-port way. In addition, the double-port way along with the current in surface-type discharge method is the one that exerts least influence on river water temperature raise.     

Microstructure Characteristics Analysis of Particles in Drinking Water Treatment Effluents by Activated Carbon

Scanning Electron Microscope and Energy Dispersive Analysis (SEM EDS) were used to study the elements of particles in drinking water treatment effluents, to conduct the distribution characteristics of particles and distribution probability of main elements, and to analyse the possible structure of individual element in the Granular Activated Carbon(GAC) effluents particles. It was indicated that there were more elements in particles at GAC inlet and outlet, in which the major elements were Ca、Fe、Al 、Si 、C、O. And the concentration of non metal elements was absolutely higher than that of metal elements. The shapes of particles were various, in which most of them were irregular and very few were baculiform, spherical or flocculent. The molar ratio of (C+O) to (Ca+Fe+Al+Mg) in particles had a wide range, from 1.0 to 40, in eight samples, in which ratios of two samples were 1.0-3.0 and five were over 7.0.     

System of the Geothermal Water in the Nanwenquan Anticline

In order to exploit and protect the geothermal water scientifically, the chemistry and isotope of geothermal water are studied in Nanwenquan anticline. It is show that the geothermal water comes from atmosphere precipitation in the north of Tongluoxia anticline, in which the Tongluoxia anticline and Nanwenquan anticline are whole geothermal water system. The geothermal water flows from north to south. The geothermal water has hydraulic contact from north to south, from the western limb to eastern limb. The geothermal waters in Nanwenquan anticline are whole geothermal water system. Every exploration of the geothermal water in Nanwenquan anticline should layout. So it can avoid that the yield is higher than pondage, and the geothermal water source environment is destroyed. The study provides theoretical gist for exploiting and utilizing rationally and protecting geothermal water resource effectively.