1)period-varying structure变周期结构
2)period-graded structure渐变周期结构
3)period-tapering structure慢变周期结构
1.It is found that the photonic bandgap region can be extended toward the short wavelength region, the long wavelength region, or the both by adding proper period-tapering structures at the both ends of an ordinary photonic crystal.研究了几种两端有慢变周期结构的光子晶体的能带特性。
4)periodic structure周期结构
1.Preparation and Optical Property of PZT Ferroelectric Thin Films/LaNiO_3 Thin Films Periodic Structure;PZT铁电薄膜/LaNiO_3薄膜周期结构的制备及其光学性质
2.Theoretical analysis showed that under well specified conditions, electromagnetic slow wave can interact stationary with moving periodic structure,based on that the a working principle can be proposed for a class of MEMS motor and actuator.理论分析表明,在特定的条件下,电磁慢波与运动周期结构之间可以发生稳定的相互作用,这能够成为一大类MEMS电机或执行器的一种不同的工作原理。
3.As a result, waves can propagation along the periodic structures only with in specific frequency bands called the “Pass bands” and wave propagate is completely blocked with other frequency bands called the “Stop Bands”.研究了在梁结构插入压电材料的周期结构波传播的一般规律。
英文短句/例句
1.FDTD Method Applied to Several Half-space Problems and Periodic Problems;FDTD在半空间及周期结构问题中的应用
2.Study on Growth of ZnO Film with Two-Dimensional Periodic Structure on Si Substate by Molecular Beam Epitaxy;Si基二维孔构ZnO周期结构薄膜生长及性能研究
3.Analytical method of the subdomain basis functions for the transmitted characteristics of two-dimension periodic structure二维周期结构传输特性的子域基函数分析法
4.Study on Mechanical and Electromagnetic Dynamic Characteristics of Materi/als with Periodic Structures周期结构材料力学和电磁动态特性研究
5.Optical Bistability and Optical Limiting of Nonlinear Periodic Structure Media非线性周期结构介质的光学双稳态和光限
6.Research on the Band Gap Mechanism and the Applicaion of Periodic Structure Based on Phononic Crystals;基于声子晶体的周期结构带隙机理及应用研究
7.Actual, cyc1ical and structual budget实际预算、周期预算和结构预算
8.p52SHC3 and Its Domains Influence the Cell Cycle of PC12 Cell;p52SHC3及其结构域对PC12细胞周期的影响
9.Stability and Hopf Bifurcation of Quadratic Periodic System;二维周期系统的结构稳定性与Hopf分支
10.Product Structure Model Based on Lifecycle Management;基于全生命周期管理的产品结构模型
11.Evolution Mechanism of Resort Life Cycle and Tourism Structure in Putuoshan Mountain;普陀山生命周期演化机制与旅游结构
12.Supply chain system framework based on collaborative lifecycle;基于协同周期的供应链系统体系结构
13.Transmission Properties Analysis on Periodic Defected Ground Structures;周期性缺陷接地结构的传输特性分析
14.Research on Capital Structure in Different Life Cycles of Enterprises;论企业不同生命周期阶段的资本结构
15.Estimating Cyclical and Structural Deficit in China;中国周期性赤字和结构性赤字的估算
16.On the Structure and Pattern and Effect of the Training;试论训练周期的结构、类型及其功能
17.Finite Element Method to Calculate the Band Gap of Two-dimensional Periodic Structures二维周期性结构带隙计算的有限元法
18.Research on Configuration Model and Its V&V in the Cycle of M&SM&S周期中的结构模型及其校验研究
相关短句/例句
period-graded structure渐变周期结构
3)period-tapering structure慢变周期结构
1.It is found that the photonic bandgap region can be extended toward the short wavelength region, the long wavelength region, or the both by adding proper period-tapering structures at the both ends of an ordinary photonic crystal.研究了几种两端有慢变周期结构的光子晶体的能带特性。
4)periodic structure周期结构
1.Preparation and Optical Property of PZT Ferroelectric Thin Films/LaNiO_3 Thin Films Periodic Structure;PZT铁电薄膜/LaNiO_3薄膜周期结构的制备及其光学性质
2.Theoretical analysis showed that under well specified conditions, electromagnetic slow wave can interact stationary with moving periodic structure,based on that the a working principle can be proposed for a class of MEMS motor and actuator.理论分析表明,在特定的条件下,电磁慢波与运动周期结构之间可以发生稳定的相互作用,这能够成为一大类MEMS电机或执行器的一种不同的工作原理。
3.As a result, waves can propagation along the periodic structures only with in specific frequency bands called the “Pass bands” and wave propagate is completely blocked with other frequency bands called the “Stop Bands”.研究了在梁结构插入压电材料的周期结构波传播的一般规律。
5)periodic structures周期结构
1.Study on Mechanical and Electromagnetic Dynamic Characteristics of Materi/als with Periodic Structures;周期结构材料力学和电磁动态特性研究
2.After analyzing the coefficient matrices of periodic structures resulted from the finite element method(FEM), a FEM with partial assemblage was put forward.本文分析了周期结构经有限元离散所形成系数矩阵的元素分布，提出部分组集的有限元法；随后将块ＳＯＲ、块共轭梯度等方法用于求解相应的线性代数方程组，并以此改造求解大型特征值问题的Ｌａｎｃｚｏｓ算法。
3.In this paper, the problem of the superposition of two film systems with periodic structures is discussed theoretically, reaching a conclusion that the cut off of the superposition has non-interference characteristics of each film system.本文从理论上探讨了两个具有周期结构的膜系叠加问题,得到叠加后的截止带具有各膜系间非干涉特征的结论,并将叠加推广到多个具有周期结构的膜系、周期结构膜系与非周期结构膜系的叠加情形。
6)structural cycle结构周期
1.Influences of the changes of cross-section of coupling beam around tube on structural cycle;筒体周边连梁截面的改变对结构周期的影响
延伸阅读
渐变与突变渐变与突变gradualandsuddenchange事物发展的两种形式。渐变分为量的渐变和质的渐变。前者是指量的增加或减少，也就是量变；后者是指新质的逐渐积累和旧质的逐渐衰减，也是质变的一种形式。突变则是质变的另一种形式，是渐进过程的中断，是不经过任何过渡阶段从一种质态到另一质态的飞跃。在自然界中，从物理运动到生命运动都普遍存在着渐变和突变这两种发展形式。一切自然过程都是渐变和突变的统一，它们是由于事物的矛盾性质不同和所处条件不同而分别采取的两种不同的变化形式。在有关自然界发展的形式问题上，历来存在着两种截然相反的观点。从古希腊的亚里士多德到近代的G.W.莱布尼茨都坚持认为自然界没有飞跃，甚至把连续性看作自然发展的根本规律。这是一种忽视突变的片面的渐变论。它曾经影响过C.R.达尔文对进化论的哲学解释，甚至对奥地利的E.薛定谔等现代科学家也产生了一定的影响。另一方面，19世纪初法国古生物学家C.居维叶曾根据某些地层和古生物化石的材料，提出关于地层演化的突变论。这是一种抹煞渐变的片面的突变论。它同样也对一些现代科学家有着一定的影响。在一切自然过程中，突变是基本的，而且质的渐变也是由无数小的突变组成的。同时，突变具有各种不同的类型。20世纪70年代R.托姆所提出的突变理论，从数学上研究了突变的各种类型。这个理论用一个光滑曲面的几何图形描写各种质变现象，特别是用曲面上的折叠区描写渐进过程中断的突变形式。托姆的突变理论考察了1～4个控制变量、1～2个行为变量的7种突变类型，即：折线型、尖角型、燕尾型、蝴蝶型、双曲型、椭圆型、抛物型，并以此描写了突变的各种错综复杂的表现，丰富了马克思主义关于渐变和突变的辩证法。
