查询词典 liquid crystals

The main properties of one-dimensional photonic band gap structures that include layers of negative refraction material are analyzed from the explicit dispersion equation. The results show that the photonic crystals containing negative refraction materials have wider photonic band gaps which is different from the case of traditional photonic crystals with narrow transmission bands when the two layers have the same optical thickness.

从色散关系出发，通过数值模拟计算研究了由正折射率材料和负折射率材料交替组成的一维光子晶体的能带结构与光子晶体的结构参数之间的关系。

Significantly shortening of 〓C T〓s for orthorhombic crystals indicates that the thicknesses of crystals decrease during the course of stretching.

通过对不同拉伸比样品〓C T〓弛豫行为的研究发现，拉伸导致正交晶晶片厚度明显变薄，拉伸对于无定形相的高频分子运动几乎无影响。

As the basic form of ice crystals is a hexagonal prism, most ice crystals are six-sided in shape at the beginning.

由于冰晶的基本模式是六角棱体，大部份冰晶的雏形都是六角形的。

The object of the game (which is a little like "Tetris") is to line up sets of five or more six-sided crystals of the same color before the new crystals fill the screen.

HexaFun 是一个六角形框架的蜂窝方格所组成的宝石宾果游戏，看似简单，但它会随机的在画面中出现下一组宝石，玩家可以用来测试自己的反应能力。

Most crystals have six-sided symmetry, though three- or 12-sided snow crystals also fall. You will never see a real snow crystal with four, five or eight sides.

多数晶体呈对称的六边形，尽管有过三角形和十二边形的雪花，但现实中你绝不可能见到四边形、五边形或八角形的雪晶。

In recent years, crystallographers have developed a series of method to improve the quality of protein crystals, such as crystal growth in metastable zone, influencing the kinetics process of protein crystal in special environment, obtaining high quality crystals by adding detergent and reductive methylation of proteins.

近年来人们从影响蛋白质结晶过程的各个因素出发，发展了一系列提高蛋白质晶体质量的方法，如在亚稳区生长蛋白质晶体、利用特殊环境影响蛋白质晶体生长的动力学过程、利用去垢剂提高蛋白质晶体质量和分子工程改造蛋白质分子提高晶体质量等。

The author prepared bulk SmBaCuO single crystals with 5×5×5mm〓 by MTG method. The SmBaCuO crystals were proved by X-ray diffraction and X-ray back-reflection Laue technique. SmBaCuO crytal became 90K zero resistance superconductor by the study of the relation of transition temperatures and heat treatment conditions.

采用MTG法及其它类似的方法制备的YBCO超导体的小样品具有很好的超导电性能，但要使YBCO超导体获得实际应用，必须制备超导电性能优异的大块YBCO超导材料，采用籽晶诱导技术是制备高性能大块YBCO超导体的有效方法，因此，制备较大尺寸高质量的〓〓单晶是籽晶诱导技术成败的关键，作者用MTG工艺制备了尺寸达5×5×5mm〓的大块〓单晶，X-ray衍射及X-ray劳埃像法证明MTG法制备的〓晶体具有很好的单晶特性。

Based on radiative transfer theory,the reflection properties of cirrostratus consisting of hexagonal ice crystals or equivalent spheres are computed by using the adding-doubling method,respectively.The results show that the Mie scattering calculations at the region of λ≈3.0 μm give good agreement with the hexagonal ice crystals.

根据辐射传输理论，应用累加法，分别计算了由冰晶粒子和等效球形粒子构成的卷层云的多次散射特性，计算结果表明当入射波长λ≈3.0 μm时，等效球Mie理论可以很好地用于计算卷层云的反射特性，但是当λ。8 μm时，尤其在可见光区，将引起显著的误差。

The aerobe of aerobic sewage liquid in autumn was significant more than that in winter.③In summer, autumn and winter, the anaerobe of anaerobic sewage liquid were significant more than that of aerobic sewage liquid.

3夏、秋季的厌氧沼液，厌氧培养出的细菌数极显著高于好氧沼液厌氧培养出的细菌；冬季厌氧沼液厌氧培养出的细菌数，显著高于好氧沼液厌氧培养出的细菌。

The pH value of concentrated liquid is stable in the alkalescence range, and the pH value of permeation liquid is little higher than that of concentrated liquid.

处理过程中，浓缩液的 pH 值稳定在碱性范围内，透过液的 pH 值略高于浓缩液的。

Given the language of section 102(2), the Supreme Court's rejection of substantive review under NEPA seems unjustifiable in principle

按照第102条的规定，最高法院否决《国家环境政策法》所规定的实质性复审在原则上似乎是不正当的。

ObjectiveTo explore the effect of variable hip abduction orthosis on children spastic cerebral palsy.

目的探讨髋关节矫形器在儿童痉挛型脑性瘫痪康复中的作用。