利用结构的周期对称性将结构进行简化；
A structure is simplified and established taking the advantage of structural cycle-symmetry.
具体推导了柱坐标下的有限元列式，并给出了周期对称边界条件的处理方法。
FEM formula in the cylindrical coordinates system is derived and the methods of dealing with the periodic symmetric boundary coordinates are given.
关于对称时滞微分方程中的周期解的存在性和全局持续存在性，现在已有一些一般性的理论。
Some general theorems are available about the existence and global continuation of periodic solutions in symmetric delay differential equations.
本文试图借助复变函数方法求解在面斜对称载荷下无限各向异性弹性介质的周期裂纹问题。
This paper attempts to solve the periodic crack problems of infinitive anisotropic media for plane skew-symmetric loadings by means of the method of complex function.
考虑了一类广义的对称正则长波方程的周期初值问题。
The periodic initial value problem of a class of generalized symmetric regularized long wave equations is considered.
为此采用全样本对称周期延拓的方法进行边界延拓。
Therefore, full-sampled symmetric periodic extension method is adopted here in order to alleviate boundary effect.
然后，综合考虑产品的价格信息不对称度和质量信息不对称度，分析了“S”型产品生命周期中信息不对称度的变化趋势。
The quality information asymmetry curve was given. And then the change current of the information asymmetry was explored in the "s" type product lifecycle.
图像的边界延拓我们采取周期延拓或对称延拓方式，图像压缩的数字实验验证了算法的优良性。
We use period extension or symmetry extension in image processing. Our arithmetic has perfect properties that validated by numeric experiments in image compression.
在对膝上假肢使用者健侧和残侧的步态进行检测的基础上，对健、残侧在步态周期内的地面反力、下肢运动和时相对称性进行了对比和分析，时相对称性差是膝上截肢者步态的主要问题。
Based on the data obtained from gait tests, the differences of ground reaction forces and the movements of lower limbs between the sound side and prosthetic side of above knee amputee were analyzed.
研究结果还表明：海风和陆风垂直方向呈非对称分布及热力环流具有明显的周期性变化。
Studies suggest that the vertical distribution of the breezes is asymmetric and the thermal circulation exhibits marked periodic variations.
本文讨论周期函数的对称轴、对称中心等有关问题。
This paper mainly talks about the symmetric line and the symmetric centre of the periodic function.
在一定的参数区域内，系统历经倍周期分岔、鞍结分岔、对称性破缺分岔等形式通向混沌。
The system could undergo the period-doubling bifurcation, saddle-note bifurcation, symmetry-breaking bifurcation and so forth to chaos, as the control parameter was set on some certain intervals.
在BZ代数中引入元素周期的概念，并讨论了零对称BZ 代数元素周期的重要性质。
The notion of periods of elements in BZ algebras is introduced, and its important properties in the frame of zero symmetric BZ algebras are discussed.
给出一类强非线性对称振子周期振动的一种解法。
The influence of translational kinetic energy on the period of vibration is analyzed.
本文采用奇异积分方程方法研究了含周期型环边裂纹长圆柱的轴对称拉伸问题。
A crack problem in the case of a circular cylinder having an infinite row of circumferential cracks under tension are analyzed in this study, by the integral equation method.
最后的章处理相同粒子的对称性和对他的他们的申请原子，周期表和双原子的分子。
The final chapter deals with identical-particle symmetries and their application to the he atom, the Periodic Table and diatomic molecules.
本课程集中研究化学中的非过渡元素及其化合物，并强调其对称，结合，周期性及性质的描述。
This course concentrates on the chemistry of non-transition elements and their compounds, with emphasis on symmetry, bonding, periodic properties and the descriptive chemistry of selected groups.
分析了周期性对称调制伪模式的显示周期与平面宽度和调制周期内的调制脉冲数之间的关系。
The display period of periodic pseudo-pattern in a virtual 2-D plane is dependent on the pulse number in a modulation period and the display plane width, which is proved in this paper in detail.
他们发现，由一个分子对另外一个EGFR激酶结构域的不对称激活类似于涉及调控细胞生长的细胞周期蛋白激活细胞周期蛋白依赖型激酶的方式。
They found that the asymmetric activation of one EGFR kinase domain by another is analogous to the activation of cyclin-dependent kinase (CDK) by cyclin, which are involved in regulating cell growth.
一维平面对称爆轰波的推进具有周期性。
Periodicity advance model of 1 - D slab symmetry detonation wave is investigated.
一维平面对称爆轰波的推进具有周期性。
Periodicity advance model of 1-d slab symmetry detonation wave is investigated.
一维平面对称爆轰波的推进具有周期性。
Periodicity advance model of 1-d slab symmetry detonation wave is investigated.
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