构形

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 existence of a concolorous rectangle on m×n chessboard dyed by r-color is introduced.

介绍了棋盘构形中m×n棋盘r染色的同色矩形存在性的问题。

According to the local cellular space configuration to determine the life and death.

根据元胞的局部空间构形来决定生死。

The free energy change defines a thermodynamic force which, in its turn, drives the configurational change of the structure.

自由能的改变定义了一种热力学的力，它反过来驱动结构的构形变化。

The configurational free energy was explicitly derived in terms of the potential parameters and solution variables such as concentration.

用势能参数以及溶液参数，如浓度等清晰推出构形自由能。

The acoustic analysis results of axial configurative tongue design with aperture or comb shaped can reduce the BPF peak effects. Therefore we can not only receive better sound quality on the experiments, but also get a similar effect in fluent 6.2 simulations.

结果在声场分析方面，应用孔穴或梳状轴向舌端构形确有降低叶片通过频率声压峰值之效果，因此可获得较佳的音质优化程度，同时在fluent 6.2 中所模拟得到与穿孔型舌端有相近的结果趋势，且其出风口质量流率高转速时明显优於标准舌端

Generally, the cross flow fan operating noise totally about 55 dB, but in the midnight when prominent frequency noise has become extremely annoying. This research attempted to different axial configurative tongue designed to improve penetrating single frequency noise of cross-flow fan.

一般而言，横流扇的运转噪音约55dB左右并不算大，但是在夜深人静时某些特别突出的单频噪音却显得极度恼人，因此本研究尝试以不同之轴向舌端构形设计来改善横流扇之尖锐单频噪音；并将录制之声音以音质参数分析，找出较佳的舌端与叶轮扭转角度搭配。

This is a special state of condensed matter with long-range order that is neither three-dimensionally periodic nor quasicrystalline, but nevertheless possessing a higher degree of organization and higher symmetry than the individual crystals constituting the MTPs.

SEM-EDS分析得到所观察到的二十面体构形的颗粒的成分比B/O是6.4；另外一种四面体结构则有B/O为2，其相应的化学式是B〓O。

Elliptic orbit ; Tetrahedron configuration ; Formation flying ; J2 perturbation ; Orbit optimization design

椭圆轨道；四面体构形；编队飞行； J2项摄动力；轨道优化设计

The equilibrium equation and boundary conditions are developed in both configurations.

在初始和即时构形中给出平衡方程和边界条件。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。