剪切应力

提高血流剪切应力调控动脉粥样硬化相关基因表达

Effect of Increased Shear Stress on Vascular Atherosclerosis-related Gene Expression

血流剪切应力对内皮细胞表达人类凋亡蛋白抑制剂的作用

Effect of shear stress on inhibitor of apoptosis protein-2 expression in human umbilical vein endothelial cells

B与壁面剪切应力（τw）之间近乎线性关系；

The B increases linearly with the wall shear stress ;

根据校正了的剪切应力τ和剪切速率r绘制流动曲线。

According to shear stress τ and shear rate γ the flow Curve and flow index have been obtained .

Cu－Zn合金中贝氏体及平衡相的加厚和剪切应力场

Thickening of bainite and equilibrium phase and shear stress field accompanying bainite growth in a Cu-Zn Alloy

利用ANSYS，以展开的流道为对象，分析了物料在混合器中的流场，并根据速度场求出了剪切应力。

The field of velocity in the unfolded channel and the shear stress were analyzed by means of ANSYS .

且临界抗剪切应力随着PAM覆盖度的增加而增加。坡度增加，土壤的临界抗剪切应力减小。

The critical shear stresses increase when treated with PAM and increase with PAM coverage increase .

ER液中存在产生ER效应的临界颗粒浓度，只有当固体颗粒浓度高于临界值时，ER液的表观剪切应力才有明显增大。

In ER fluids , particle concentration has critical value . Only above the critical value , the apparent shear stress increased obviously .

体系在相反转点前为W／O结构，其粘度几乎不随剪切应力的改变而改变，表现为牛顿流体行为；

The viscosity of the system before the phase inversion point is almost constant independent on stress , which is the characteristics of Newtonian fluid .

入口压力降（ΔPen）、入口弹性贮能（e）和口模膨胀比（B）均随着剪切应力的增加而呈线性函数形式增大。

The entry pressure drop ( Δ P en ), entry elastic stored energy ( e ) and die swell ration ( B ) increased nonlinearly with increasing shear stress .

通过不同试验条件，分析了坡度、地表PAM处理对土壤临界抗剪切应力的影响。

At the same time , effects of slope degree and PAM coverage on the critical shear stresses were analyzed .

在磁流变液软起动装置当中，输出的物理量为扭矩。要计算它的扭矩，首先需要找出其主要参数-屈服剪切应力τy和外磁场强度H之间的关系。

In order to calculate the torque , the relationship between main parameter of MRF-yield stress τ y and intensity of magnetic field MRP subjected to have to be carried out first .

大米草冠层通过影响底床剪切应力τb和水流紊动而对悬浮泥沙浓度、细颗粒泥沙絮凝体沉降速率产生作用。

The canopy exerts a strong influence on the concentration , settling velocity of the flocs and deposition rate of the cohesive suspended sediment through effects on bed shear stress and turbulence of flow within the canopy .

流体剪切应力对大鼠成骨细胞整合素β1、αv及骨保护素（OPG）骨保护素配体（OPGL）的影响

The Effect of Fluid Shear Stress on Integrin β 1 、α v and OPG / OPGL in Rat Osteoblast

结果表明：在高的剪切应力下LLDPEgAA、LLDPEgGMA的表观粘度比纯LLDPE的小。

Results show that apparent viscosity of LLDPE g AA and LLDPE g GMA is lower than that of LLDPE at high shear stress .

HIAP2蛋白在2N/m2剪切应力4～24h刺激下表达明显增加。

Expression of HIAP-2 protein was also significantly increased at 2 N / m 2 of shear stress for 4 to 24 hours .

结果表明，随外加电场强度的增加，ER液的表观剪切应力增大；随剪切速率的提高，ER液的表观剪切应力反而减小。

The results showed that the apparent shear stress increased with the increasing applied field strength and particles concentration respectively , while it decreased with the increasing shear rate .

文中还分析了层合板层数对层合板应力和应变的影响，增加层合板层数会使层合板的剪切应力、剥离应力以及Y方向的应变增加，但会使X方向的应变减少。

The increase of number more layers of laminates will increase the plywood shear stress , peeling stress and the strain of the Y direction , but decrease the strain of the X direction .

本文利用ANSYS和MATLAB软件，对鱼尾型片材机头中熔体的速度、压力、剪切应力和粘度的分布进行三维有限元模拟和分析。

The software ANSYS and MATLAB were employed to analyze and simulate the velocity , pressure , shear stress and viscosity distribution in fishtail sheet extruder die based on the three-dimen-sional FEM .

指出利用断裂力学的有关公式计算震源应力场的初始剪切应力τo和地震释放的总能量ET在原理上是可行的，且方法简单；

That calculation of initial shearing stress (τ o ) of focal stress field and total seismic energy ( E T ) of formula of rupture mechanism is feasible in principle .

CMC、食盐、黄原胶使莲藕淀粉糊的剪切应力明显提高，表观黏度稍有增大。

CMC , salt and xanthan gum enhance the shear stress of lotus root starch paste significantly , and increase the apparent viscosity a little .

流体剪切应力对模拟失重条件下MG-63成骨样细胞Cbfα1表达的影响

Influence of Fluid Shear Stress on Expression of Cbf α 1 in MG-63 Cells Cultured under Simulated Microgravity Condition

MRS的附加动态剪切应力（△τ）与分散介质浓度、外加磁场强度呈正比例关系；

Exhibited dynamic shear stress of the MRS induced by external magnetic field is in direct-ratio relation with strength of external magnetic field and concentration of the filled clusters in the MRS.

凝结液的排除主要依赖于汽液界面的剪切应力作用，使Nu随蒸汽进口Re数的增加而明显增大；

The exclusion of condensate was mainly depended on interfacial shear stress , so Nu increased obviously with increasing inlet steam Re .

本文针对提高磁流变液的磁致剪切应力、改善抗沉降性和抗氧化性，提出了采用CoFe2O4纳米粒子添加到羰基铁粉磁流变液与制备Fe/CoFe2O4核壳复合粒子两种改性方法。

In this thesis , methods of adding CoFe_2O_4 nanoparticles into the carbonyl iron MR suspensions and preparing the Fe / CoFe_2O_4 composite particles are studied .

对仿生非光滑表面减阻机理，采用流体力学分析软件CFX进行了数值模拟，通过对速度场、剪切应力、涡量的计算结果进行分析，得出了仿生非光滑表面减阻几种主要原因。

Through analysis of velocity vector field and velocity fluctuation this article probe into drag reduction mechanism of unsmooth surface .

该模型结构为4-7-1的三层BP网络模型，它考虑了管壁处的剪切应力、管壁处温度梯度、管壁处蜡分子浓度梯度和原油的动力黏度对管道蜡沉积速率的影响。

The neural network is 4-7-1 BP structure , and the factors of influencing wax deposition rate include the shear stress , temperature gradient and molecular concentration gradient at pipeline wall , and dynamic viscosity of the crude oil .

经等离子渗氮及PVD处理的钢的最大剪切应力及耐磨性能取决于渗氮时间。

The maximum shear stress and abrasive resistance of plasma nitrified and PVD treated steel are decided by the length of nitrified time .

研究了陶瓷粉末与PP混合材料的流变性能，结果发现，随着陶瓷粉末含量的增加，混合材料熔体表现出较高的剪切应力，其表观粘度也相应增加。

The rheological behavior of powdered ceramic and PP mixed material was studied . The results show that the shearing stress of the composite rises with increasing of powdered ceramic and so does the apparent viscosity .

相同剪切应力下改性CPVC的表观剪切速率大于CPVC，熔体表观粘度小于CPVC。

The shear rate of modified CPVC was higher than CPVC and the melt apparent viscosity was lower at the same shear stress .