查询词典 shear stress

Firstly the distribution of the interfacial shear stress of the intermediate crack zone is presented based on the bilinear bond-slip model for the interface between FRP and concrete, Then, theoretical models to predict the load at initiation of debonding and deboning failure are proposed, respectively. Finally, experimental results validate the prediction models.

基于FRP-混凝土界面粘结滑移的双线性模型，推导弯曲裂缝间界面的粘结剪应力，提出了预应力FRP片材加固RC梁由弯曲裂缝引起界面开始剥离以及发生剥离破坏的预测模型。

Methods: The parallel plate flow-loading apparatus was used to imitate the physilogic pulsatile shear stress(19. 29 and 56.25 dynes/cm2) and the con-centrations of nitric oxide in flow were measured among test groups and different time points.

材料与方法：利用本室已建立的平行板模拟血流循环装置，在模拟生理脉动切应力(19.29.56.25dynes／cm2)分别作用于培养人脐静脉内皮细胞0，1，2，4，6，10，24 h后，用一氧化氮微量测定法测定循环液中一氧化氮的含量。

Results In cultured bovine endothelial cells, the eNOS protein under the 5 dynes/cm2 shear stress was 1ower than that in control static endothelial cells.

结果 静息状态下，体外培养的牛胸主动脉内皮细胞呈多角形&铺路石&状排列，形态大小均匀。

In four tumor cell lines, incubation under static conditions for 24 or 48 h led to G0/G1 arrest; in contrast, shear stress (12 dynes/cm2) induced G2/M arrest.

此结果提出骨型态发生蛋白-4所造成的反应及讯息途径会受到integrin β3-ERK所调控。

PDA(particle dynamics analyzer system) was used to measure the flow velocity of particles in the XFD-12 flotation cell, the results show that tangential mean velocity in the radial direction changes from positive to negative in the flotation cell, naught point emerge in the medium of the radial direction ,it is where backward fluid emerge ,shear stress of backward fluid induce the particle detachment from bubbles .

汁算数据与实际矿石筛析结果都表明，紊流强度增大，泡沫中粗粒级含量减小。 4。用PDA在XFD-12型8L浮选机中测定的速度值，进行混合区、分离区、泡沫区紊流运动功率谱计算，得紊流脉动频率，混合区小于20Hz，分离区在20-30Hz之间，泡沫区在25-35Hz之间，浮选槽内紊流脉动以低频为主，且紊流脉动动能是混合区大于分离区大于泡沫区。

Three turbulence models,k-ε model,k-omega model and Shear Stress Transportmodel,were used to calculate the friction coefficient of tube surface and Stanton number.

分别采用了k-ε模型、k-omega模型和ShearStress Transport模型3种湍流模型。分析了管表面摩擦因数和斯坦顿数，并对所得结果进行了分析比较。

In this way, the hysteretic loop curve is not only related to the backbone curve, which is the fact in Masing's model, but also related to the damping ratio curve, so that the shear stress strain behavior under cyclic loads exhibits the actual damping characteristics of the soil.

本文提出了一种基于阻尼构造粘土恢复力模型的方法，使得由此构造的滞回曲线不但与土的骨架曲线相关，而且与阻尼比曲线有关，滞回圈的形状特性反应了土体的真实阻尼特性。

The shear stress at some point and along arbitrary direction of the wringed pole just equals to the slope at the counterpoint and along perpendicular direction of the membrane.

扭杆横截面上某一点处的，沿任意方向的剪应力，就等于该薄膜在对应点处的，沿垂直方向的斜率。

Fluid shear stress synergizes with insulinlike growth factorI on osteoblast proliferation through integrindependent activation of IGFI mitogenic signaling pathway［J］.

模拟失重对成骨细胞功能的影响我们前期研究发现，在FSS的作用下，1 G重力环境下培养的成骨细胞分泌的PGE2可迅速增加。

The objectives of the study were to construct a nonstented and a half stented aortic arch aneurysm models with blebs, demonstrate the detailed flow patterns, pressure and wall shear stress distributions around the aneurysm, and examine whether half stented aneurysms have preferable intra-aneurysmal hemodynamics for thrombus and occlusion.

为展示动脉瘤附近的详细流动情形和压力、壁面切应力分布，检验半桥支架是否具有可以促进瘤腔内血栓、闭锁形成的血流动力学特征，构建了无支架和半桥支架治疗带局部突起的主动脉弓动脉瘤模型。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。