查询词典 viscosity

The macroscopic rheological parameters and microstructure parameters were closely related, it is helpful to explain the essence of multiple rheological properties through the analysis of which the wax evolution process and microstructure of the crude oil which is waxy and high viscosity; the yield time of gelled waxy crude oil monotone increases along with the decreasing of rate of shear (the time of stress effect prolonged), there was power function relationship between them, it can be expressed with ; when adding diesel oil to Sudan crude oil, dilute proportion bigger the eccentricity degree of paraffin particles were bigger too, that was to say the symmetry of wax crystal was better, the wax crystal form fabric more hardly when the intermolecular interaction was smaller; in the light of macroscopica, the fall extent of the abnormity temperature, solidifying point and viscosity could be larger along with the accretion of dilute proportion, as a result, it's rheological properties could be improved.

SD原油析蜡点为94℃，析蜡高峰为50～30℃，异常点为40℃；其蜡晶颗粒细小、对称性差，所以具有较大的比表面能，容易形成联生、联锁结构；损耗角曲线与储能模量曲线或损耗模量曲线的交点所对应的温度与原油凝点或倾点温度非常接近，大约在39℃左右；也就是说，含蜡原油粘弹特性曲线的交点可以表征其流动性；原油宏观流变参数与微观结构参数密切相关，原油析蜡过程及蜡晶微观结构分析有助于诠释易凝高粘原油多重流变特性的本质；胶凝含蜡原油的屈服时间随剪切速率的降低而单调增加，二者显然存在幂函数关系，可用关系式描述；当SD原油加柴油稀释处理时，稀释比越高，蜡晶颗粒的偏心度也越大，亦即蜡晶对称性越好，分子间作用力越小，蜡晶颗粒越不易形成结构，宏观表现为异常点、凝点及表观粘度等流变参数下降的幅度越大，流动性越好。

We studied the effects of protein content, pH and ionic strength on viscosity of silver carp myofibril protein by orthogonal rotational regression design, and established the regression equation of silver carp myofibrillar protein solution viscosity with protein content, pH and ionic strengt

利用二次回归正交旋转试验设计，研究了蛋白质浓度、pH、离子强度对鲢鱼肌原纤维蛋白粘度的影响，建立相应的回归方程，分析比较了它们间的相互作用关系，确定了取得最优粘度时，各因素的组

The viscosity of the polymers increased rapidly with addition of SDS and reached maximum value, then decreased with further addition of SDS. Furthermore, the mixed solution apparent viscosity of P AM/NaAA/DiAC(subscript n/SDS increased with the increasing of side chain length.

水溶液的表观粘度随SDS质量浓度的增加急剧上升，超过一定浓度后又急剧下降；粘度增加的幅度随疏水链长度增加。

Apparent viscosity,non-Newtonian index and structural viscosity index were obtained as a function of nonsolvent contents and temperatures.

摘 要：研究了聚丙烯腈/二甲基亚砜/水三元混合纺丝原液在不同的含水量和温度下的流变性能，获得了表观黏度、非牛顿指数和结构黏度指数对于含水量和温度的依赖关系。

The shear viscosity of interfacial films containing nonionic surfactant, polyoxyethylene(4)nonyl phenyl ether (0.04 % mass fraction) and anion surfactant, sodium oleate (0.04 % mass fraction) decreased with the increase of time, and finally inclined to a constant. But the shear viscosity of interfacial films containing montmorillonite increased with the increase of t...

结果表明非离子表面活性剂壬基酚聚氧乙烯(4)醚polyoxyethylene(4nonylphenylether、阴离子表面活性剂油酸钠在0.04%浓度下其界面剪切粘度随时间延长而逐渐降低，然后趋向恒定；而蒙脱土界面剪切粘度随时间延长而逐渐上升，然后趋向恒定。

A method to establish the relationship between temperature and viscosity, which is high precision and simple operation, was presented, and the empirical formula of more than 10 species lubricants kinematic viscosity, expressed by quartic polynomial of logarithm of absolute temperature, was described.

提出了一种精度高、操作简便的润滑油温度—粘度关系式的建立方法，给出了用绝对温度的对数的四次多项式表示的十余种润滑油运动粘度经验公式。

In this study, viscosity method measuring viscosity-average molecular weight of ramie fiber was investigated.

本文采用粘度法测出了苎麻纤维的粘均分子量，分析探讨了不同整理液浓度、焙烘温度与纤维分子量之间的关系。

The effect of coconut amine on the viscosity and stability of residue asphaltene system was studied and the change in viscosity and colloid stability with coconut amine content was discussed briefly.

考察了表面活性剂椰子胺对石油沥青质体系粘度和胶体稳定性的影响，初步探讨了粘度和胶体稳定性随椰子胺质量分数变化的原因。

The flow properties of shaddock peel pectin solutions were studied and the intrinsic viscosity of pectin was determined and thus the viscosity-average molecular weight of pectin was obtained.

研究了柚皮果胶溶液的粘流性能，测定了果胶的特性粘度并由此计算出果胶的分子量。

In classic theory,it is held that, in Sobolev Space ［H1］3, there is the upper bound of the norm of the constant rotating flow of the incompressible viscous fluid between two closed surfaces. It is inversely proportional to the viscosity of the fluid, and it will go to infinity when the viscosity goes to zero.

经典理论认为，不可压缩粘性流体定常旋转流在Sobolev空间［H1］3中的范数的上界与流体粘度成反比，随着流体粘度的减小，这一上界会无限地增大。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐