For poor quality rock masses, the confinement effect on supporting structure for radial displacement of tunnel wall around circular opening is worse when the supporting force is the same. 在支护力相同时,支护结构对处于较差围岩中的圆形洞室洞壁位移约束效果较差;
The maximum vibration speed occurs at the radial direction of tunnel wall facing the blasting side, which can be regarded as the controlling vibration speed. 最大振动速度出现在迎爆侧边墙测点的径向方向,可将其作为爆破振动的控制速度;
Assessment of radial artery wall elasticity in patients with type 2 diabetes with elastosonography 超声弹性成像评价2型糖尿病患者桡动脉血管壁弹性
The radial velocity decreases with the increase of wall roughness in the most part of flow field. 在流场大部分区域径向速度随粗糙度的增大而减小;
The thicker the kiln crust, the smaller the radial temperature grade of kiln wall, the lower the heat stress. 窑皮越厚,窑壁的径向温度梯度越小,热应力越低;
The inner tangental wall and radial wall are thickened, while outer tangental wall remain in thin wall state. 细胞的内切向壁及径向壁均加厚,而外切向壁保持薄壁状态。
CB-HRP was separately injected into the radial nerve unilaterally and the ventral wall of the proventriculus. 将CB-HRP分别注入鸡一侧桡神经和腺胃腹侧壁。
Then from static equilibrium of a differential element, the differential equation for the radial displacement of cylindrical wall are derived out. 然后从微单元体静力平衡,推导出关于筒壁径向位移的微分方程。
Thus the relationship between the radial stress of the tunnel wall p and the radius of plastic zone R_o~ b under the action of rock anchoring is derived. 由此导出了锚杆作用下洞壁支护抗力P,与塑性区半径R(?)~b的关系式。
The constructors, adopting a method combining the technology of lowering ground water level by large diameter radial well with the technology of impervious diaphragm wall made of shotcrete, lower the ground water level to the design elevation for it at one stroke without affecting the surrounding buildings. 采用大直径辐射井降水技术和高压喷射防渗帷幕墙技术相结合的方法,在周围建筑物不受影响的情况下,把地下水位一次性的降至设计标高。
Results and Conclusion The increases in the dimension and wall intimal medial thickness of aortic, carotid, brachial and radial arteries with decreased vascular distensibility and wall compliance was demonstrated in hypertensives which compared with control. 结果和结论高血压组主动脉、颈总动脉、肱动脉和桡动脉壁内膜中层厚度和面积及其与动脉内径和管腔面积的比值显著增大,主动脉、颈动脉、肱动脉扩张性和顺应性显著降低;
There are three patterns of the tapetal secretion ( osmotic secretion, exocytic secretion and autocytolysis). 3.The inner tangential wall and the radial wall undergo two cycles, i. 绒毡层细胞的分泌作用有3种形式(渗透分泌、胞吐分泌和自溶)。
The results indicates near the wall of tube well the radial temperature grad is great and far from the wall the grad is little. 结果表明:靠近管井壁面的区域径向温度梯度大,远离管井壁面的区域土壤温度变化不明显。
In order to show the effect of the radial impedance of the flexible rubber pipe wall on the wave propagation in the medium, the complex sound speed is calculated under given conditions. 在此基础上,得出了压力波在挠性橡胶管介质中传播时的复波速。
The periodically variation of heat transfer coefficient along flow direction was in exactly accordance with that of radial velocity and turbulent intensity in near wall region. 表面传热系数、近壁区径向速度、近壁区湍流强度三者沿流向周期性变化的规律一致。
According to the characters of wellbore flow in the extended reach well, wellbore pressure drop calculation model considering radial inflow through wall in the extended reach well with arbitrary dip angle was established by using the principle of mass conservation and momentum conservation. 根据大位移井井筒流动特征,应用质量守衡、动量守衡原理建立了考虑井壁流体径向流入的任意倾角的大位移井筒压降计算模型。
Computing research for the radial displacement of coal-shaft freezing wall 井筒冻结壁径向位移规律计算研究
The radial variation of ratio of cell wall to cavity was very complex. 管胞壁腔比径向变异复杂。
Affected by heat transfer of concrete hydration, the change of temperature field of artificial ice wall is nonlinear and the varieties of temperature are similar along radial of artificial ice wall. 在内衬混凝土水化热的作用下,冻土墙温度场会发生非线性的变化过程,沿径向受影响冻土墙上的不同点,温度变化规律是相似的;
The treatment of experimental data is on the basis of orthogonal collocation, the correlations between the radial effective conductivity, the wall heat transfer coefficient of two dimension model and the wall heat transfer coefficient of one dimensional model and particle Reynolds number are obtained respectively. 对实验数据分别用有限差分法及正交配置法进行处理,得到了固定床一维给热系数h、二维径向传热参数Ker、hw与雷诺准数Re的关系式。
According to the equations, the simulation program of the temperature field was developed with VC, which realized the computer simulation and described each radial node's cooling curve of long-thick wall tube during the cooling process. 根据此方程组,用VC编制温度场模拟计算程序,实现计算机模拟,描绘了长厚壁钢管径向各节点冷却过程中的冷却曲线。
The most radial deformation of cylinder liner's inner wall, which appears on the upper part of cylinder liner, is 0.246 mm. 缸套内壁径向的最大变形量为0.246mm,出现在缸套上部。
The results showed that secondary structure of root was undeveloped, there were mass crannies in cortex, vascular bundle were radial pollens were seen, cell wall showed a little thick in common; 结果表明,金纽扣的显微结构鉴别特征为:根部次生构造不发达,皮层裂隙较多,维管束辐射型,根横切面观细胞壁普遍较厚;
The result showed that the cracking brought significant change to lining, the influence of radial cracking of arch wall on the mechanical properties of lining is great, and the influence of longitudinal direction along the tunnel is small. 结果表明,裂缝给衬砌带来的应力变化比较显著,拱墙径向裂缝对衬砌力学性能影响很大,沿隧道纵深方向影响较小。
The measurement of the borehole acoustic property with three frequency transducers can obtain the measurement result of the medium's acoustic property in different radial depths round the borehole wall. 用3种频率的探头进行的井下声学性质测量,可以获得在井壁附近不同径向深度处的介质的声学性质的测量记录结果。
The appearance in the ginkgo timber cross section of thick tracheids which are exactly like vessel elements, and the presence of numerous pits at the radial wall of wide tracheids embody the transitional characteristic of ginkgo tracheids while evolved from gymnosperm tracheids to angiosperm vessel elements. 银杏木材中酷似导管的粗大管胞的出现,以及宽管胞的径向壁上的纹孔数目众多,从不同角度体现出其由裸子植物管胞向被子植物导管演化的过渡特征。
It has been proven by trial commercial production that With the piercer plug designed by means of the said new method, much higher radial wall thickness accuracy is available. 工业性试验结果表明,新设计的穿孔顶头能显著提高毛管的横向壁厚精度。
Adopting test particle method, we simulate electron motion in magnetic mirror confinement and puts forward magnetic mirror as another factor for the asymmetry of radial near wall conductivity current profile. 采用单粒子模拟方法,模拟电子在磁镜场中的运动特性,提出磁镜效应是引起电子近壁传导径向非对称性分布的另一个原因。
When the thickness of mud cake is small, or the radial displacement of interlayer borehole wall is larger than the compressibility of mud cake, the mud cake can be compacted fully. 若隔层界面径向位移大于泥饼的径向可压缩量,则泥饼可被充分压实。