原胞
- 网络Primitive cell;cell;unit cell
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根据graphene晶体结构特点,我们画出了graphene原胞质心点阵结构图,研究了质心作微振动时的动力学特性,得到了graphene在平面内和垂直于平面振动的色散关系以及原子运动的速度。
According to the characteristics of graphene crystal structure , we have drawn the lattice structure of graphene primitive cell and investigated the dynamics characteristics of the center of mass vibration , and obtained the in-plane and out-off-plane vibration dispersions but for the velocity of atoms .
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关于第n布里渊区体积等于倒格子原胞体积的证明
The proof about the equation of volume of the n-th Brillouin zone and the volume of reciprocal 's primitive cell
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使用基于密度泛函理论的第一性原理赝势法和超原胞模型,研究了吸附在Cu(100)表面上的二维有序排列的幻数团簇Nb4的结构稳定性及其电子结构性质。
First-principles density-functional theory and supercell models are employed to study the structural stability and electronic properties of the periodic two-dimensional arrays of identical Nb_4 clusters on the Cu ( 100 ) surface .
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在此基础上由这两种磁性光子晶体构成了磁性光子晶体异质结(MRRTC异质结),并利用超原胞方法计算了这种异质结的带隙结构。
Based on the above results , the PBG structure of magnetic heterostructures composed of both RR type and TC type MPCs ( MRRTC heterostructures ) is investigated by use of PWE method combined with the supercell technique .
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本文利用平面波展开方法和超原胞方法研究了由正方形格子上放置正方形散射子和三角形格子上放置六角形散射子组成的异质结(SSTH异质结)的带隙结构。
By using the plane wave expansion method combined with the supercell technique , we investigate the band structures of the heterostructure composed of square cylinders in square lattice and hexagon cylinders in triangular lattice ( SSTH heterostucture ), and the guide modes at the interface of the heterostructure .
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GaN/AlN半导体异质结带阶超原胞法计算
Super Cell Calculation of GaN / AlN Semiconductor Heterojunction Valence-band Offsets
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声子晶体;振动带隙;晶格;对称性;原胞;
Phononic crystals Vibration band gap Crystal lattice Symmetry Primitive cell ;
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金属氢理论(Ⅳ)Wigner&Seitz球原胞近似方法
Theory of Metallic hydrogen (ⅳ) Wigner-Seitz Spherical Primitive Cell Approximation
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强非线性复合材料中的原胞有效媒质近似
Cellular effective medium approximation for strongly nonlinear composite materials
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双子随机填充问题的原胞自动机模型和平均场分析
Cellular Automaton Model of the Random Dimmer Filling Problem and its Mean-field Analysis
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布里渊区与倒格子原胞
Brillouin zone and reciprocal lattice primitive cell
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准周期原胞超晶格中的横声子谱
Transverse phonon spectra in quasiperiodic superlattice
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这个特性在原胞的晶格常数变化的-3%-20%范围内保持不变。
This character remains in the variation range of-3 % ― 20 % of lattice constant .
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半无限准周期原胞半导体超晶格的表面等离子激元
Surface plasmons in quasiperiodic semiconductor superlattice
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在一个(?)-Ag表面原胞内含有三个碱金属或贵金属吸附原子的体系是最稳定的。
The most stable configures of the adsorption systems are three noble or alkali adatoms in the unit cell .
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家兔腋神经躯体传出和传入神经原胞体节段定位的实验研究&HRP法
Experimental Study on Segmental Location of the cell Bodys of the Somatic Efferent and Afferent Neurons in Axillary Nerve of Rabbit
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在一个增量步内,根据动态再结晶晶粒生长速度确定与其相邻原胞转变概率。
At each increment step , the transformation probability for the neighborhood sites of a recrystallized grain is dependent on its growth velocity .
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引进一个有限羣,其元素乃是分布于一个磁原胞内的空间羣的元素。该羣的对称元素作用于次晶格的自旋密度上,使热力势保持不变。
A finite group , formed of those elements of the space group which are distributed within a magnetic unit cell , is introduced .
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该原胞可以作为构建此类进化硬件的基本组成模块。
A basic cell structure that can be used as the basic building block for functional level EHW ( Evolvable Hardware ) is presented .
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利用平面波展开法结合超原胞法研究了二维声子晶体的缺陷态及点缺陷间的耦合特性。
The coupling characteristics between defect states and point defects of 2-D phononic crystals were studied by the plane-wave expansion method composed with super cells .
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利用平面波展开方法与超原胞方法研究了两种不同晶格的光子晶体异质结的界面态。
We have investigated the guide modes in two kinds of two_dimensional photonic crystal heterostructures by using the plane wave expansion method combined with the supercell technique .
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有趣的是,视一个超原胞内原子平面数为奇或偶,结果有差异,意味着宏观性质也会有差异。
It is interesting that the results are different in cases that a super-cell contains odd or even number of atomic planes , implying differences in physical properties .
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拉曼光谱的特征主要来自于原胞中带电原子的振动模式,其峰强和频率对应声子谱中各个振动峰,本质上拉曼光谱项来自电子极化率的变化。
The character of Raman spectra is determined by vibration modes of electrons in unit cells . The intensities and frequencies are corresponded to the peaks of phonon spectrum .
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视正格子原胞基矢和倒格子原胞基矢为线性空间的两个基底,提出了求解倒格子原胞的一种新的矩阵算法。
Regarding the reciprocal lattice primitive cell s basic vectors as two line space basic vectors , this paper finds a new matrix method to work out the reciprocal lattice primitive cell .
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用简单数学方法就体心立方晶格和面心立方晶格证明了三维情况下布里渊区体积等于倒格子原胞体积。
It is proved that the volume of Brillouin zone and that of the reciprocal lattice primitive cell are equal for bcc lattice and fcc lattice in three dimensions by a simple mathematical method .
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设计了一种棋盘格子复式晶格的二维光子晶体:在二维正方形格子中,把截面为正方形的柱子旋转45°,同时在每个原胞中心引入一个圆形截面的柱子构成的光子晶体结构。
A two-dimensional chessboard of non-Bravais lattice is designed in this paper : the square columns in photonic structure of a two-dimensional square lattice are rotated by 45 °, and a cylinder is introduced into the center of each lattice unit cell .
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石墨烯是一种由单层六角原胞组成的蜂窝状二维晶体,它具有超越许多材质的极高电导率及电子运输速率,从而使石墨烯在场发射器件方面具备了一定的应用前景。
Graphene is a two-dimensional crystal , it composed of single-layer hexagonal original cell honeycomb , It can go beyond many material of high conductivity and electron transport rate , so that the presence of graphene launch device has a certain application prospect .
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本文计算了准周期原胞超晶格中横弹性波的体和面模式的色散关系,导出了用传输矩阵表述的动力学格林函数,并用以计算了热涨落的谱密度。
The dispersion relations of transverse elastic wave in both infinite and semi-infinite quasiperiodic superlattice is discussed by the rational approximation , and the dynamical elastic Gree 's function for a semi-infinite superlattice with quasiperiodic primary cell is obtained and used to calculate the spectral density of thermal fluctuations .
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结果实验组小鼠睾丸组织中间质细胞和精原细胞胞质呈水样变性,出现红染细小的颗粒状物质,颗粒周围有大小不等的淡染区。
Results The cytoplasm of mesenchymal cell and spermatogonium in test group showed hydropic degeneration .
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HER2/neu原癌基因胞外区片段DNA克隆及其在小鼠中诱导的抗体应答
Induction of Antibody Response by Intramuscular Immunization with HER2 / neu Oncogene Extracellular Domain DNA in Mice