It is found that under little axial strain, armchair carbon nanotubes are still conductors, but Fermi wave vector, Fermi dot and the effective mass near Fermi face are changed.
在小的轴向拉伸下,扶手椅型碳纳米管仍然是良好的导体,但其费米波矢、费米点及费米面处的有效质量都发生了变化。
The QP values as well as the velocities Vp of P wave in dry and saturated specimen of Xiaolangdi sandstone and Fangshan marble are studied as functions of axial stresses.
研究了单轴压缩下超声P波在干燥和饱水的小浪底砂岩和房山大理岩中的衰减和速度。
On the basis of relationship between bolt axial stress and rate of change in ultrasonic wave transmission time, the author has developed a device to directly measure axial stress in bolts.
根据螺栓的轴向应力与超声波传播时间变化率的关系,作者研究了一种可直接测量螺栓轴向应力的仪器。
The criterion of energy transformation and conservation are used to derive the supplementary restraint condition of buckling deformation at the front of axial compression wave.
由能量转换和守恒准则,导出压缩波阵面上的屈曲变形附加约束条件。
Analytical theory of wave propagation along a corrugated waveguide filled with Plasmas immersed in a finite axial magnetic field is presented in this peper.
给出了有限磁场下波在等离子体填充的波纹波导中传播的分析理论。
In this paper, we have given a method for calculating non-axial rotational wave functions and energy levels of odd-A nuclei by means of that of even-even nuclei.
本文给出了利用偶-偶核非轴对称转动波函数与能极,以计算奇a核非轴对称转动波函数与能级的方法。
The diffraction phenomena by a circular aperture or a phase plate is analyzed by the boundary diffraction wave theory, the analytic expression of its axial intensity is obtained.
本文根据边界波衍射理论分析了圆孔及相位片的衍射现象,得出其轴上光强的解析表达式,并对高斯光束经相位片衍射后的轴上光强进行了数值计算和讨论。
Through controlling the axial direction of the Nonel tube to produce the strong reflection shock wave, the ideal initiating process can be obtained.
控制导爆管轴向方向获得较强的反射冲击波可达到理想的起爆过程。
The method of tuning is rotating the wave-plate by the axial direction parallel to the optical axis.
调谐的方法是使石英波片绕平行于光轴的轴向转动。
Firstly, the testing principle with axial precompression stress is re-examined based on one-dimensional wave theory.
首先按照一维应力波传播理论,对动静组合加载的试验原理进行理论论证。
The expression of optic axial Angle and ray axial Angle on light wave plane can be obtained by using the curve equations of the wavefront of light wave and normal plane of light wave.
利用光波面和光波法线面的曲线方程,得出了光波面上光轴角和光线轴角的表达式。
The additional axial finite magnetic field also has some influence on the beam-wave interaction efficiency and the resonance frequency.
外加纵向有限磁场也对注波互作用效率和谐振频率有一定的影响。
The critical stress and axial buckling-wave-number predicted by the (theoretical) analysis is in good agreement with existent experimental results.
关于屈曲应力和屈曲波数的理论计算结果与已有实验吻合良好。
In theorem, it is expressed that the displacement wave is founded because of the axial institial stress.
理论说明了初始应力是位移波存在的原因。
The wave washers (56) apply a resistive force against axial movement of the clutch disk (38) from a coupled state, at which the input disk (28) is coupled with the clutch disk (38) to rotate together.
波形垫圈(56)施加抵抗力,以抵抗离合器圆盘(38)从输 入圆盘(28)与离合器圆盘(38)连接以一起旋转的连接状态的轴向运 动。
The research result shows that with the designed pupil filter the axial focal shift can be controlled by rotating the half-wave plate.
研究结果表明,通过旋转半波片的角度可以实现焦移量的实时控制。
The research result shows that with the designed pupil filter the axial focal shift can be controlled by rotating the half-wave plate.
研究结果表明,通过旋转半波片的角度可以实现焦移量的实时控制。
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