查询词典 dynamic viscosity

Considering the influence of fluid's viscosity and large amplitude slosh, the 3-dimension coupling system composed of uncompressible viscous fluid and ideal elastic structure is studied in this paper. The moving state of the interface between the fluid and the structure is analyzed, and the boundary's moving condition (i.e. displacement compatibility) and dynamic condition (i.e. traction equilibrium) are given.

本文探讨了计入流体的粘性、大幅晃动影响，不可压缩粘性流体与弹性体的三维动力耦合问题，分析了流体、固体接触界面的运动状态，给出了其运动和动力边界条件，即位移一致性和作用力平衡条件。

RESULTS The trend of dynamic frequency response of piezoelectric coagulation corresponded with the inverse S curve F =（f0-△f）＋△f/1＋e^（t-t0）/dtderived from theory according to the change regularity of the viscosity and density in the reaction system.

结果 根据反应体系黏度密度变化规律，理论推导出体外凝血反应过程，中压电频率动态响应规律符合F=（f0-△f）＋△f/1＋e^（t-t0）/dt等‰模型；根据该模型建立了新的反S拟合曲线法；与既有的最大拟合曲率法相比，前者检测速度更快（P〈0.01），重复性更好（P〈0.01）。

This paper studies the effect of pH value, microwave and ultrasonic on viscosity and dynamic modulus of SPC.

研究了pH值、微波和超声波对醇法大豆浓缩蛋白粘度与动态粘弹性的影响。

Interfacial film ; dynamic shear viscosity of interfacial films ; polyoxyethylene（4）nonyl phenyl ether ; sodium oleate ; montmorillonite.

界面膜；动态界面剪切粘度；壬基酚聚氧乙烯（4）醚；油酸钠；蒙脱土

Producted RF and CRF aerogels by process of sol-gel technics, dynamic-exchange, CO2 supercritical drying, and procedural increase in temperature carbonization methods, which have eximious capability and nanometer network structure; Systemic analysis various factors which effect gel course, such as ratio of reactants and the dosage of catalyst, and probed into the better experiments conditions(the concentration of resorcinol and formaldehyde is more than 2% and the value of R/C is between 50 and 300); During gel course , primary investigated the viscosity curve and particle size distribution of sol-solution, and analyzed the reason of catalyst dosage effects particle size of gel, and confirmed that the up-growth of gel follows the theory of " polymerize increase ".The experiment results indicated that ultrasonic with unvarying temperature disposal shortened gel time and optimized quality of gels, and the factors of ultrasonic effect gel reaction velocity were analyzed; Prepared organic aerogels using compounds of resorcin and hydroquinone substitute resorcinol reacts with formaldehyde the first time, and also optimized the proportion of resorcinol and hydroquinone (the proportion of hydroquinone in 10%～40%).

采用溶胶-凝胶工艺结合动态溶剂交换、CO2超临界流体干燥与程序升温碳化方法制备出性能优良、具有纳米网络结构的RF与CRF气凝胶；深入研究了反应物配比催化剂用量等条件对凝胶过程的影响，得到了较佳的RF凝胶制备条件(RF浓度应大于2%，R/C值取50～300)；初步研究了凝胶过程中的粘度、粒径变化情况，分析了催化剂用量影响凝胶中粒子尺度的原因，在实验上印证了凝胶生长遵循"聚增长"的理论；通过引入超声波改进了RF气凝胶的制备工艺，缩短了凝胶反应时间，提高了凝胶品质，并探讨了超声波促进RF凝胶反应作用的原因；首次用对苯二酚与间苯二酚复配制备了混合有机气凝胶，优化出复配比(对苯二酚含量为10%～40%)。2。

Viscosity, dynamic properties and interfacial morphology of the composite were investigated by ARES rotational rheometer and scanning electron microscopy.

采用ARES型旋转式流变仪和扫描电镜对材料的熔体粘度、动态特性以及界面形态作了研究。

At first, two optimal control problems for hybrid dynamic time-varying systems with free-terminal and terminal constraint are considered, value functions of these two optimal problems are respectively proved to be the unique viscosity solution and the unique lower semicontinuous solution to a type of Quasi-Variational Inequality and the relationship between them is addressed.

本文首先分别考虑了有限时间混合动态时变系统在终端自由和终端约束两种情形下的最优控制问题，得到了最优控制问题的解在这两种情形下分别是一类拟变分不等式的唯一的粘性解和唯一的下半连续解的结论，并给出了它们之间的关系。

So the splay and twist elastic constants and viscosity could be determined by dynamic light laser scattering at the same time

这提示可以动态激光散射同时测定向列液晶展曲和扭曲弹性常数和粘滞系数

Hybrid Dynamic; time-varying systems; finite horizon; optimal control; Quasi-Variational Inequality; viscosity solution; lower semicontinuous solution; uniqueness; Dynamic Programming; Viability Theory; inventory systems; mathematical model; proximal subdifferential; parabolic equation; nonlinear boundary

基础科学，数学，控制论、信息论混合动态；时变系统；有限时间；最优控制；拟变分不等式；粘性解；下半连续解；唯一性；动态规划；生存定理；库存系统；数学模型；邻近次微分；抛物型方程；非线性边界

Through the research on the changes of buffer′s dynamic characteristic curves under four working conditions,the paper analyzes the influence of running resistance and medium viscosity on dynamic characteristic of hydropneumatic buffer.

通过研究4种不同工况下缓冲器动态特性曲线的变化，分析了运行阻力、缓冲介质黏度变化对缓冲器动态特性的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失