查询词典 liquid crystals

Also, the results indicate that it is not necessary to control over the temperature gradient of the undercooled liquid by human beings within the directional solidification undercooling range; and that even single crystals can be obtained by point trigging at the end of the samples.

在定向凝固的过冷度范围内，无需人为控制固液界面前沿的温度梯度，而且，以点触发试样端部，可以获得单晶。

This article introduced mainly the progress in the symmetrical triphenylene discotic liquid crystals in the types and synthesise.

盘状液晶是近年来研究的一种新型光电材料，其独特的光电性能显示了巨大的应用前景，本文主要从类型与合成方面介绍了近年来对称型苯并菲盘状液晶的研究进展。

This paper repots that optical bistability is achieved When both He-Ne laser and external electric field act simultaneously on nematic phase liquid crystals(8CB,5CB)in F-P cavity.

将He－Ne激光和外电场同时作用在Fabry－Perot腔内的向列相液晶（8CB、5CB）上，实现光学双稳态。

In inorganic panels, the liquid crystals are vertically aligned, making it easier for polarizers to filter out almost all light for deeper blacks.

在无机面板，液晶是垂直排列的，方便的偏光板的淘汰几乎所有的更深的黑色滤光器。

Optical devices based on liquid crystals, such as variable optical attenuators, switches and tunable filters, have been introduced into the area of optical communications recently.

基于液晶技术实现的光器件目前开始应用于光通信领域，实现光信号的衰减、传输方向的切换以及滤波等功能。

This article summarizes recent progress in hybrid electroluminescent materials and hybrid liquid crystals based on POSS,and self-assembly behavior of POSS derivatives.

本文综述了近几年来POSS基有机/无机杂化的电致发光材料、液晶材料和POSS衍生物的自组装行为的研究进展，指出这类材料由于制作方便和热力学性能优良，在未来高科技领域中必有宽广的应用前景。

We discovered that the average pretilt angle of liquid crystals can be controlled by adjusting excitation power, and the relationship was found to follow the possible predicted photovoltaic effect.

我们发现液晶的平均预倾角在改变雷射光强度后，受到相当的变化；而且其变化关系与预期的光伏效应相当符合。

The liquid crystals molecular can be reorientated by means of two-beam coupling.

样品经过二波耦合实验之后液晶分子进行一定的取向，这时在水平和竖直偏振光的照射下可观察到明显的自相位调制现象。

The polishing fluid is composed of Al2O3 micropowder with a grain diameter of 0.5-1.0 mum, coal oil, lard, plant oil and spindle oil, wherein Al2O3 micropowder is abradant, coal oil is solvent, the mixing liquid of lard, plant oil and spindle oil is as additive; and the polishing fluid is prepared by a mixing liquid which is composed of 2% lard, 2% abraser, 8% plant oil and spindle oil by volume and 88% coal oil. The polishing fluid can produce the H62 brass element with a uniform surface quality and a good surface roughness value up to 0.008 mum, has the characteristics of no eroding elements, effectively relieving mechanical score, good processing surface quality and can be used for decoration of the plastic metal material and surface polishing process before the material metallographic microscope analysis.

抛光液由粒径为0.5～1.0μm的Al 2 O 3 微粉、煤油、猪油、植物油和锭子油混合而成；其中Al 2 O 3 微粉为磨料，煤油作溶剂，猪油、植物油和锭子油的混合液作添加剂；抛光液按体积比由2％的猪油、2％的磨料、8％的植物油和锭子油的混合液、88％的煤油配制而成；该抛光液能够加工出表面质量均匀，表面粗糙度值达到0.008μm的H62黄铜工件，具有不腐蚀工件、有效缓解机械刻划作用、加工表面质量好的特点，可以用于塑性金属材料的外观装饰性加工，以及材料金相分析前的表面抛光加工。

To develop a new kind of absorbent applied to organic exhaust gas purification and recovery, and featured by its good absorption and desorption performances, stable absorbefacient and distinct separation between solute and solvent, on the basis of previous work, a study task of liquid paraffin regarded as an absorbent has been established and some relevant fundamental researches have been done on the liquid paraffin absorbent.

为选择一种适用于有机废气吸收净化、回收，且吸收性能好、解吸性能优越、溶质和溶剂分割清楚、吸收性能稳定的吸收剂，本论文在前人工作的基础上，确立了以液体石蜡作为吸收剂的研究课题，并对液体石蜡吸收剂进行了初步的基础性研究。通过进行液体石蜡对苯吸收性能和解吸性能的基础性研究，得出以下主要结论：液体石蜡对苯的吸收量大；其本身的沸点在340℃以上，对吸收质分割清楚；液体石蜡粘度适中，动力消耗小。

Add it into your food such as to yogurt, cottage cheese and such.

你可以把它加入到像酸奶、奶酪一类的食物中一起进食。

The man was rescued about three hours later when his partner arrived home, SAPA said.

SAPA说，这为男子在三个小时后妻子回家后被解救