The errors of lattice constant of compound are able to achieve 10-4, which basically meets the demand for measuring precision in displacive phase transition.
对该化合物晶格常数的测量误差可以达到10-4，基本上满足了对一般位移型相变测量要求的精度。
The calculation results for the lattice constant, bulk modulus, cohesive and electronic band structure agree with that results of ah initio pseudpotential method.
对于平衡晶格常数、体模量、结合能和能带结构的计算结果与从头算赝势方法较接近；
The crystal lattice constant is an important parameter of the crystal and it changes extremely slightly.
晶体的点阵常数是晶体的重要参数，它的改变是极细微的。
We also study the relation between the dielectric constant and lattice distortion of the PT tetragonal and cubic phase region.
我们还研究了PT四方相区和立方相区介电常数与晶格畸变的关系。
With the grain size decreases, both the lattice constant and lattice distortion increase.
随球磨时间的增加，样品的晶粒尺寸减小，晶格常数和晶格畸变增大。
Five undetermined parameters are determined by experimental data of the total energy, three second order elastic constants and the lattice constant of the crystal at o K and zero pressure.
五个待定参数用零温零压下晶体的总能、三个二阶弹性常数以及晶格常数的实验值确定。
The bandgap wavelength can be chosen by arranging the periodic array of voids to have a lattice constant a fraction of the bandgap wavelength.
可以通过以下方法来选择带隙的波长：排列周期性空位，使得其点阵常数等于带隙波长的一部分。
The results show that in ab initio method the choice of pseudopotential has great influence, and different basis function leads to different lattice constant in si material.
计算结果表明，在第一性原理计算方法中，赝势的选用和基函数的确定对计算结果起很大影响，不同的基函数对应不同的硅单晶的晶格常数。
The way of computing immediate predecessor (successor) of the new element is given, so the problem of constructing concept lattice is solved on condition that the attribute set is constant.
确定了新节点在原概念格中的直接子节点和直接父节点的计算方法，解决了生成新节点后的连线接问题。
The errors of lattice constant in this compound were able to achieve 10~(-4), which basically met the measuring precision in displacive phase transition.
对该化合物晶格常数的测量误差可以达到1-04，基本上可满足对一般位移型相变测量要求的精度。
The influence of three main factors such as lattice structure, packing ratio and dielectric constant ratio on complete forbidden band of 2-d air cylindrical photonic crystal is studied.
研究了晶格结构、填充比、介电常数比三个主要因素对二维空气圆柱型光子晶体完全禁带的影响。
This character remains in the variation range of -3%-20% of lattice constant.
这个特性在原胞的晶格常数变化的- 3% - 20%范围内保持不变。
The grain size and lattice constant of Boron carbide was determined by method of X ray diffraction and scanning electron microscope (SEM).
采用X射线衍射和扫描电子显微镜测定了碳化硼粉的粒度和点阵数。
Lattice constant of the nanofilm was increased and lattice was expanded due to surface effect. CdS nanofilm was totally composed by…
由于表面效应导致纳米晶粒的晶格常数增大，晶格发生膨胀。
The distribution of silicon in as-cast white iron was studied using electron probe microanalysis. Effect of silicon on lattice constant of the cementite was also studied using X-ray diffraction.
采用电子探针及X射线衍射仪测定了可锻铸铁白口组织中硅的分布和硅对渗碳体点阵参数的影响。
Using symmetry-adapted force-constant lattice-dynamical method, the Raman active phonon frequencies are calculated for BC3 single-wall nanotubes with diameter between 0.
本文对单壁BC3纳米管的振动模式进行了对称性分析，利用对称性适配力常数模型计算了直径在0。
The numerical results indicate: The bigger the errors of the radius of columns and the lattice constant are, the worse the transmission properties of photonic crystals are.
由于误差的存在 ，光子晶体点缺陷所形成的微腔的共振频率位置与理想情况发生了漂移 ；
The numerical results indicate: The bigger the errors of the radius of columns and the lattice constant are, the worse the transmission properties of photonic crystals are.
由于误差的存在 ，光子晶体点缺陷所形成的微腔的共振频率位置与理想情况发生了漂移 ；
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