新型分油机溶度场的求解及应用

对比了新型分油机与传统分油机结构,建立了新型分油机的物理模型.由于油、水二相流体在分油机的分离筒中所受力的性质相同,但油、水密度不同,因此二相流体在分离筒中产生的离心力大小则不同,油、水必能会在各节点上进行分离,从而使得油、水在每一节点上溶度产生变化,但油、水二相流体必须符合质量连续,只要知道各节点的速度分布,就可求解...     

Mechanical Alloying of Ag-Cu Immiscible Alloy System

IntroductionMechanical alloying(MA)was originally de-veloped for the production of oxide dispersion-strengthened(ODS)super alloys[1].Since the suc-cessful preparation of Ni60Nb40metallic glass[2],this technique has been widely used to synthesisnew materials which are not accessible by tradi-tional melt metallurgy.A broad range of non-equi-librium phase transformation and chemical reac-tions have been observed in the process of MA in awide variety of systems including metal-metal,metal-oxid…     

A Theoretical Model on Solvus Line Prediction of Film and Its Application in Nanogranular Al-Cu System

A theoretical model on the solvus line prediction of a film was proposed and applied to a nanogranular Al-Cu system. The calculation results show that the solvus line of solute Cu will markedly lower with the decrease of grain size, namely, the starting temperature of θ(Al_2Cu) precipitation in a nanogranular Al-Cu film will markedly lower than that of conventional coarse grain alloy with the same Cu concentration, and the precipitation temperatures calculated are comparable with the experimental ones. The theoretical model can be simply used to calculate the starting temperature of precipitation in Al-Cu films under three states: ① films with substrate; ② films without substrate; ③ ultrafine grain bulk alloy. As a result, the model is universal, moreover, can be, in principle, used to predict precipitation temperature in other systems.     

苯系物溶解度和分配系数的测定与估算

采用气相色谱的分析技术,用摇瓶法分别测定了苯,甲苯,乙苯的溶解 度（Sw)和分配系数（KOW）。结果表明,溶解度和分配系数之间存在线性关系：lnKow=0.4558-0.9176lnSw。并且运用结构法和摩尔体积法估算了苯及其简单同系物的溶解度和分配系数,估算结果与实验结果能较好吻合,说明估算法是一种简便、可靠的方法。     

Measurement and correlation of the solubility of 1-hydroxyphenazine in different solvents at temperature from 278.5 to 333.5K

Compound of 1-hydroxyphenazine (1-OH-PHZ) is an important fungicide in agricultural production. The ranges of 1-OH-PHZ solubilities in dichloromethane at temperature of 278.5–308.5 K and in ethyl acetate, methanol and water at temperature of 278.5–333.5 K were measured using the analytical stirred flask method at barometric pressure. The color of the liquid remained unchanged throughout. The solubilities of 1-OH-PHZ in water, methanol, ethyl acetate and dichloromethane increased orderly and these solubilities also increased with increasing the temperature. The experimental data was correlated by the modified Apelblat equation. The root mean square deviations were all within 0.5% and the maximum relative average deviation was 5.2%. The calculated solubility shows a good relationship with the experimental solubility.     

海水脱硫技术在船舶柴油机排气中的应用

船舶柴油机中排放的废气硫氧化物(SO2)已成为当前大气的一大污染源.为有效应对国际海事组织日趋严格的船舶燃油含硫量和SO2排放量的限制,在分析SO2易溶于海水特性的基础上,分别对目前工业上的海水脱硫技术及其它多种烟气脱硫技术进行研究和对比,提出海水脱硫技术在船舶柴油机废气排放中应用的可行性.对海水脱硫技术工艺流程与效率进行理论设计和计算分析的结果表明,海水脱硫技术对保护大气环境和船员健康具有重大现实意义.     

提高聚氨酯化学注浆材料性能的试验研究

在试验研究工作中成功地将聚氨酯化学浆液进行改进，使其性能满足高压富水粉细砂层水文地质条件下的施工需求，为隧道施工的注浆工艺提供了一种新的技术措施。