查询词典 bulk modulus

A mechanical description of the REV related to the elastic modulus of jointed rockmasses is proposed, and an expression of the REV based on the central limit theorem is suggested.

本文论述了岩体力学性质的尺寸效应，提出了与岩体弹性参数相应的表征单元体REV的力学描述，根据中心极限定理推导了估算裂隙岩体REV 的数学表达式。

By using TCN—AN numerical torsion testing machine, the torque of Cast Iron Materials under pure shearing is measured, and its strain is also measured through XL2101B2 static strain meter, adopting method of whole bridge connection. Based on the above experiment equipments and all the measurement results, method of torsion of circular shaft is designed to measure Elastic Modulus of Cast Iron Materials.

通过 TCN—AN数控扭转试验机测量处于纯剪切状态下铸铁试件的扭矩，采用全桥接线法，使用XL2101B2静态应变仪测量铸铁试件的应变，基于以上两种实验仪器及其测量的结果，发展了圆轴扭转法来测量铸铁材料的弹性模量。

This paper illuminated that the signal non-isolated singularity of close-in faults cannot be characterized by using wavelet transform modulus maximum.

为此，人们相继提出了一系列新型超高速保护，如行波保护t'周、边界保护13，41等，利用线路上的高频暂态信号在sms内判别出故障的方向和区域。

The results show that the coefficient of friction decrease progressively with decrease of the elastic modulus.

这些分析结果与经验数据和试验结果非常吻合。

It is found, fitted with data, that the Singh-Mitchell model has a higher precise in the stress level between 20% and 80%, and the deformation modulus and viscosity coefficient of Kelvin model all vary with stress level.

与试验数据拟合发现：Singh-Mitchell经验模型对应力水平为20%~80％时具有较高的拟合精度；Kelvin模型中的变形模量和粘滞系数均不为常数。

Results: 1. A collarless press fit canine femoral stem of CFRPSF composite (elastic modulus was 40 GPa, containing carbon fiber 30%) using HA (50%) and PSF (50%) composite for surface coating was made. Directions of carbon fiber in the stem were similar to the arrangement of trabeculae of proximal femur.

实验结果：1。用弹性模量为40GPa，碳纤维含量为30％的聚砜复合材料，制造出纤维排列方向模拟股骨上段骨小梁走行，表面涂层为羟基磷灰石50％/聚砜50％混合物的压配型狗人工髋关节股骨柄假体。2。

It is shown that the mechanical properties including Young's modulus, tensile strength, critical strain and stress under buckling can be enhanced with the decreasing of intershell spacing. The shear strength can be enhanced by 2-3 orders of magnitude when the intershell spacing is reduced to 20%, which is also dependent on commensuration. Zigzag-type carbon nanotubes have higher shear strength. The axial stress in tubes when the load transferring from outmost tube to inner tube is observed as well.

研究了单壁纳米管束横截面的六方化失稳现象，给出各种管径的面内压力－应变关系曲线；每条曲线都给出一个明显的拐点而且有很强的非线性；线弹性模量与参考构形有关，也受管直径的影响；分析了管束横截面的晶格不稳定性特征，表明晶格的缺陷能够明显的减小临界值；模拟了在不同应变下纳米管束对静水压的反应，发现不同压力下的截面形态不同，在很高压力下相邻管之间会形成化学键。

The base part is curved concavely so as to form a space between the base part and the bead core, and an anchor rubber having a complex elastic modulus of from 20 to 80 MPa is disposed in the space to tightly pinch the carcass cords between the anchor rubber and the bead seat of the wheel rim.

所述基部凹曲以形成一个介于所述基部和胎圈芯之间的空间；且一复合弹性模量为20到80MPa的锚固橡胶设置在所述空间中，从而箍紧锚固橡胶和轮辋的胎圈座之间的胎体帘线。

This series of lathes for turning internal and external cylindrical surface, conical surface, and other rotating surface, turning a variety of metric, imperial, modulus and diametral pitch threads, and can pull the drilling and oil and so on.

商品简介：本系列车床适用于车削内外圆柱面，圆锥面及其它旋转面，车削各种公制、英制、模数和径节螺纹，并能进行钻孔和拉油槽等工作。

This method needs no restriction on the structure of the transmitting signal, so has wider application field than Constant Modulus algorithm.

这种方法不需要对发射信号的结构进行限制，较之恒模盲均衡算法有更大的使用范围。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。