查询词典 viscosity

Adding sugar to the three raw starch and their low cross-linkedsuccinylated starch,the viscosity and thermal paste viscosity were rised eventually; addingcitric acid, lactic acid and sodium chlorid to the three raw starch and their low cross-linkedsuccinylated starch, the final viscosity and thermal paste viscosity showed varying degreesof decline.

加入蔗糖使的三种原料淀粉及其低交联酯化淀粉的热糊粘度与最终粘度有所上升；加入柠檬酸、乳酸、氯化钠后使得三种原料淀粉及其低交联酯化淀粉的热糊粘度和最终粘度呈现不同程度的下降。

The sizes of the self-assembly micelles of the amphiphilic block copolymers and the effects werestudied by dynamic light scattering and UV-visible spectrophotometer. The micelle sizes werelargely influenced bythe hydrophobic chain content in the copolymer, the properties of the solvent and the copolymer concentration in the organic phase. The morphology of the micelles was investigated by transmission electron microscopy. Theresults showed that the micelles appeared spheres with inner core and outer shell. The critical association concentrations were determined by pyrene monomer fluorescence probe technology. The degradability of copolymer was studied by the loss of the intrinsic viscosity in the degradation process. The results indicated that the degradation rate of PECL was slower thanthat of PELLA and PEDLLA. The stability of the copolymer micelle dispersion was examined by measuring the critical flocculation concentration, which gradually decreased with increasing the content of thehydrophobic chain in the copolymer. The rheological results showed thatthe viscosity ofthe micelle dispersion with higher content of PEG segments was firstly decreased and then increased with the increasingthe temperature. Otherwise, the variation of viscosity was irregular. The viscosity of the micelle dispersion increased with the increase of the electrolyte (Na 2SO 4) concentrations. Polymer micelles paclitaxel was prepared by self-emulsification/solvent evaporation method and solid dispersion technique with amphiphilic block polymers as the carrier material.

运用动态光散射和紫外分光光度计研究了两亲性嵌段共聚物自组装胶束的粒径及其影响因素，结果表明，自组装胶束的形成机理受制备方式的控制，胶束的粒径随着共聚物相对分子质量或疏水嵌段相对分子质量和有机相中共聚物浓度的增大而增大，随着有机溶剂的水溶性的增强而减小；采用透射电镜观察胶束的形态结构，发现胶束呈具有核壳结构的均匀球形；采用芘荧光探针法测两亲性嵌段共聚物的临界聚集浓度；通过降解过程中共聚物特性粘度的变化研究两亲性共聚物的降解性能，发现与PELLA和PEDLLA的相比，PECL 降解速率较慢；随着共聚物中疏水嵌段含量的增大，纳米分散液的稳定性逐渐下降；PEG含量高的PEDLLA纳米分散液随着温度的升高，纳米分散液的粘度先下降然后增大，反之，没有规律性，且随着电解质Na 2SO 4浓度的增大，体系粘度增大。

With the development time extension, the development effect worse gradually of Chaoyanggou oilfield, There is some low permeability thin oil that traditional production techniques can not realized in Fuyu and Yang da cheng zi layer of Chaoyanggou oilfield. The crude oil viscosity is high; the relationship between viscosity and temperature is sensitive. The viscosity has big fluctuating along with the temperature change. According to the development experience of inspissated pool and the research results of numerical simulation by STARS, thermal recovery technique is an efficient method used to improve the development effectiveness of low permeable and high viscosity blocks.

随着开发时间的延长，朝阳沟油田开发效果逐渐变差，扶余、扬大城子油层存在常规开采工艺技术无法满足的低渗透稀油，根据稠油油田开发经验和应用商业化软件 STARS 热采模型蒸汽吞吐数值模拟研究结果，采用热力采油技术是改善低渗透、高粘度区块开发效果的有效途径，因此在朝阳沟油田开展热力采油现场应用研究。

Defined as: fluid dynamic viscosity and temperature of the water, the ratio of dynamic viscosity to offer unlimited amount of steel, and sometimes it's also increasing solution of kinematic viscosity with temperature in the ratio of dynamic viscosity solutions.

定义为：流体的动力粘度与温度下水的动力粘度之比，为无量钢量，有时它也提高分子溶液的动力粘度与同温度下纯溶液动力粘度之比。

Measuring the coefficient of dynamic viscosity of 0-60g/l salt water under 10-30℃ by capillary tube viscosimeter, and performing the mathematical regression of coefficient of dynamic viscosity about temperature and concentration in order to realize the influence of temperature and concentration on dynamic viscosity of salt water.

2为了解温度和浓度对咸水粘滞系数的影响，使用品氏毛细管粘度计测定10—30℃下，浓度在0—60g/l之间的咸水的粘滞系数，并对咸水粘滞系数进行了浓度和温度的数学回归

The yield of the poly-alpha-olefins synthetic lubricant is 81.42%. The results show that the viscosity at 100℃ is 4.87mm^2/s, the viscosity at 40 is 21.15mm^2/s, the viscosity index is 126, the condensation point is -62℃.

结果表明，产品收率为81.42%，100℃的粘度为4.87mm^2/s，40℃的粘度为21.5mm^2/s，粘度指数为126，凝点为－62℃。

This work presents a viscosity model based on Peng-Robinson cubic equation of state for a better description of viscosity. A viscosity model has been developed based on the similarity between PVTand TμP relationship and the PR EOS.

本文基于P-V-T-与T-μ-P关系的相似性，结合Peng-Robinson立方型状态方程，建立了一个预测纯烷烃气液相粘度的统一模型。

Polyringlpyrrolidoneas a viscosity increaser is used to adjust the viscosity of the sols.When the molar ratio of PVP:Al(OC_3H_7)is up to 1:1,the viscosity of the PVP assisted sol increases from 2.3 to 31.5 mPa·s,and homogeneous,uniform and crack-free 1 mol%Er~(3+)-10 mol%Yb~(3+)codoped Al_2O_3 thin films with the thickness of 1.6μm are formed by 10 dipping and drying cycles sintered at 1000℃.

以聚乙烯吡咯烷酮为增粘剂，调节DCPA改性溶胶的粘度，PVP(K-90)：Al_3的摩尔比为1：1时，溶胶粘度由原始溶胶的2.3增加到含PVP溶胶的31.5mPa·s，仅经过10次循环提拉、干燥，1000℃烧结，制备出表面均匀完整，无开裂厚度约为1.6μm的1 mol%Er~(3+)-10 mol%Yb~(3+)共掺杂Al_2O_3薄膜。

The results show that the system belongs to Newton fluid; temperature being increased, the viscosity decreased; surfactant mass fraction being increased, the viscosity increased; the viscosity has the same trend as content of water; their diameters are about 100 nm, its corrosion, density and solidifying point can meet the national standards.

结果表明：微乳柴油体系为牛顿型流体；温度升高，体系粘度降低；表面活性剂质量分数增大，粘度也逐渐增大；粘度的变化同水量的变化规律基本一致；粒径均在100 nm左右；腐蚀性、密度和凝点均符合国家标准；室温时稳定期在6个月以上。

The result shows that the viscosity was improved with the increase of the molecular mass of the product, the viscosity at 100℃ was between 17.827.6 mm^2/s, the viscosity index was more than 125, solidifying point was below -27℃, the oxidative stability was also improved with the increase of the molecular mass of the product. The biodegradabilities of complex esters were more than 70%. The value of PB was 784 N, the value of wear diameter was 0.41 mm, the temperature of thermal decomposition was above 250℃. The complex esters can be used as excellent green lubricants.

结果表明，复合酯的粘度随着分子量的增大而增大，粘度指数大于125，凝点低于－27℃，氧化稳定性随分子量的增大而提高，生物降解率＞70%，最大无卡咬负荷为784N，磨斑直径0.41mm，热分解温度＞250℃，因此目标产物是性能良好的绿色润滑剂。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。