变粘

ABSTRACT In this dissertation, three-dimensional (3D) numerical calculation of flow field through a torque converter is carried out with inviscid flow model and viscous flow model.

本文从流体无粘流动和有粘流动两种模型出发，较系统的研究了液力变矩器流场的三维数值计算。

Methods:By determining the weight of thrombus,serumal and plasmic biscosity,platelet adhesion rate in rat and stress ability in mice treated with defferent dosages of Nao Tai-le,the state of animal hemorrheology and stress ability were determined.

选择不同剂量的脑泰乐，通过测定大鼠体内血栓的重量、血清与血浆粘度、血小板的粘附率及小鼠应激实验数据，检测机体血液流变学状态和小鼠应激能力。

And sulfurization modification is improved the complex modolus G(superscript *) and elasticity property at high temperature, when G(superscript *)/sinδ=1 kPa, the temperature of PMA is 10℃ higher than the base asphalts after sulfurization, also the δ became smaller than the base asphalts, their temperature susceptibility is reduced to a great extent. It indicates that the viscoelasticity of the modified binder had been improved effectively at the high temperature.

低温性能明显改善；同时高温性能得到提高，改性沥青的车辙温度G(上标*/sinδ=1kPa比基质沥青提高约10℃；粘度增大，复合模量提高，在高温区的相位角和损耗因于变小，从而改善了沥青高温粘弹性能。

The evaluation method and physics meaning of every parameter in the viscosity relationship equation were elaborated using theologic experiment data, and the viscosity relationship equation be referred to in the literature were appraised using simulate data and experiment data.

利用聚甲基丙烯酸甲酯乳胶体系的流变数据，阐述该粘度关系方程式中各参数的求值方法及其物理含义。同时也用数值模拟数据以及实验数据，评价了文献中所提到的粘度方程。

The characteristics of light sulfurized and esterified castor oil ①It's shown by the IR and LC-MSD that the sulfurized castor oil esterified with acid anhydride on 12-hydroxyl forms single, di and tri-esters.

流变性能：使0.5％S、1％S、2％S和3％S轻度硫化蓖麻油的粘度从327增加到545，粘度指数从135减小到100；倾点从-25℃上升到-15℃；碘值从90.6mgI／100g减小到88.5mgI／100g，测定实际的硫含量从0.412％增到2.6％；表明不饱和程度在减小。

The influence of temperature on pressure viscosity relation of mineral oil is more than pressure-viscosity relation of synthetic oil.

温度的升高会使润滑油的粘度随压力的变化速度变小，温度对矿物油的压粘关系的影响要比对合成油的大。

Apart from the above covering viscosity and business card printing and membership card making adaptability, when we consider that the Ink viscosity is part of a business card printing and membership card within the scope of the speed of production, why I business card printing and membership card when making a slow, Business card printing and membership card making adaptability, but when there is no problem to a certain speed increase, there is a mild trailing again a color depth of Sulci?

除上述所叙述的粘度与制卡和会员卡制作适应性外，当我们认为油墨的粘度在属于制卡和会员卡制作的速度范围内，为什么在制卡和会员卡制作速度慢时，制卡和会员卡制作适应性没有问题，而当提速到一定的情况下，就会出现轻则拖尾，重则色浓度变浅呢？

For the first time, a screw pile and pile driver system for preventing flood and rushing to deal with an emergency was manufactured. The screw piles of the system is different from screw drills used to sap, and it doesn't push soils out. Analyses, including the screw pile's structural strength analysis and the screw blade's welding analysis, were done by ANSYS, which showed that the screw pile's structural strength is enough and that the distort of the screw blade is small. Testing on the screw pile and pile driver system showed that the system performed stably and could meet the need of preventing flood and rushing to deal with an emergency. A mechanics model of interaction of a screw pile and soil was built, and expressions of torque of screw pile's cylindrical part on the condition of screw pile's crew part being driven into soil fully were gained, then the relation of the torque with screw pitch and out diameter of cylinder, which shows the torque decreases with the screw pitch increasing, and that the torque increases with the out diameter of cylinder increasing, which was according with the experiments of the screw pile's being driven into soils, and thus a screw pile with the best structure was chosen. Experiments of bionic surface showed that, on the condition of certain pressure on the surface, the protruding bionic surface can not reduce adhesion and resistance and that the corrugated bionic surface can reduce adhesion and resistance. An orthogonal experiment of the corrugated bionic surface was done with the factors including the width of protrusion, the space between two protrusions, the trolley's velocity and the vertical surface pressure and with the surface frictional coefficient as the experimental target, and some inclusions were drawn that the best combination of the factors was acquired and that the width of protrusion affected the surface frictional coefficient remarkably.

研制了防汛抢险螺旋桩机系统，提高了沉桩作业效率；利用ANSYS对桩体进行整体结构强度分析以及螺旋叶片的焊接分析，表明桩体结构强度足够，焊接过程中，螺旋叶片的变形小；对整个螺旋桩机系统进行试验，表明该系统性能可靠，工作稳定，作业效率高，能够满足防汛抢险沉桩作业基本需要；建立了螺旋桩桩土作用力学模型，得出螺旋桩沉桩过程中螺旋桩螺旋部分完全进入土体时螺旋桩圆柱部分所受扭矩以及扭矩与防汛抢险螺旋桩的螺旋导程和圆柱外径的关系曲线，表明螺旋桩螺旋部分完全进入土体时螺旋桩圆柱部分所受扭矩随着螺旋导程的增大而减小，随着圆柱外径的增大而增大，这与螺旋桩沉桩试验结论相符合，据此优选出最佳结构的螺旋桩；仿生曲面试验表明，尺寸较小的球冠突起型仿生曲面在一定压力作用下未能起到减粘降阻的作用，而尺寸较大的波纹型仿生曲面相对平板具有一定的减粘降阻作用；以波纹型仿生曲面突起宽度、波纹型仿生曲面两突起之间间距、台车的牵引速度以及叶片表面垂直载荷为因素，以曲面摩擦系数试验指标进行正交试验，寻求出在一定试验条件下最佳因素水平组合；波纹型仿生曲面突起宽度在本试验条件下对曲面摩擦系数影响显著，而其它几个因素对曲面摩擦系数影响均不显著；通过波纹型仿生曲面突起宽度和台车牵引速度的单因素试验，表明曲面摩擦系数随着仿生曲面突起宽度的增大而减小，而随着台车牵引速度的变化基本保持不变，和正交试验结果保持一致。

Low viscosity, low rate of change of viscosity with temperature, and low pour point are desirable characteristics.

它要求的性能是低粘度、低倾点及随温度而变的粘度变化率低。

For pump power, with the liquid viscosity increases, lift and efficiency, shaft power increases, so sometimes on industrial liquid viscosity viscous heating to make smaller in order to improve transmission efficiency.

对于动力式泵，随着液体粘度增大，扬程和效率降低，轴功率增大，所以工业上有时将粘度大的液体加热使粘性变小，以提高输送效率。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。