查询词典 uv

This thesis demonstrates the pre-polymers in a polymer-dispersed cholesteric liquid crystals can be polymerized into a polymer film, which can eliminate the aligning capability of the homogeneous alignment layer. Thereafter, the textures of the cholesteric liquid crystals in UV-cured region can be changed from reflective planar texture to the scattered focal conic one. Additionally, the clearing temperature of the liquid crystals can be reduced by doping with chiral dopant or monomers. The cause is the increase of the impurity concentration in LCs. In other words, if the monomers are polymerized, the clearing temperature of LCs in that region should increase due to the decrease of the impurity concentration. Therefore, impurities associated with doping with monomeric and chiral dopants cause the clearing temperature of LCs in cured region to differ from that in uncured region.

本文中，我们提出在高分子聚合物薄膜之胆固醇液晶(polymer-dispersed cholesteric liquid crystals，简称PDCLCs)中，利用紫外光使PDCLC中的单体聚合成薄膜，此即为光引致聚合反应，而该薄膜将原本在表面所作的配向膜覆盖且破坏其配向能力，使胆固醇液晶由原本反射的planar结构转换成散射的focal conic结构；另外，有关液晶材料的相变温度会由於掺杂手性分子或单体而降低，此因液晶材料内『杂质』浓度增加，而造成的液晶材料之不纯度增加，最终导致相变温度降低，若搭配上述光引致聚合反应，则由於光照区之单体聚合，使该区域单体占总材料之比例下降，即不纯度降低，进而使液晶材料之相变温度上升，该区域之相变温度与未照光区有所不同。

Electrostatic forces are employed to manipulate the shape of liquid polymer lens. Surface profile distortions of the liquid lens result in its focus variability. UV light is employed to cure the liquid lens when its surface profile and focal spot are appropriate. Therefore, aspherical micro-lens with nice optical imaging and focusing abilities can be fabricated.

在实时进行光学检测的条件下，选择光固化材料，利用电场作用操控液滴透镜的面形实现变焦，在检测到较好的透镜面形和聚焦状态时，采用紫外光固化技术使液滴透镜固化，可制作具有良好光学成像和聚焦性能的非球面微透镜。

Formamide was used as the background electrolyte solvent and citric acid-Tris as the electrolyte with the UV detection at 254 nm.

以甲酰胺为介质、柠檬酸-三羟甲基氨基甲烷为电解质、在254nm波长下紫外检测。

The abilities of red cabbage extract scavenging HO, ABTS(superscript +) and FRAP were studied by using chromogenic reaction and UV-vis spectrophotometry.

方法］采用化学显色和紫外可见分光光度法考察紫甘蓝提取物清除在自由基、ABTS和铁离子还原力的能力。

Free radical mobility and oxygen inhibition in UV curable formulation and dual curable formulation as a function of visosity of formulation are discussed.

讨论了紫外固化和双重固化配方的自游基迁移性和氧抑制作为配方体系粘度的功能函数。

The component and stability of anthocyanidins in petals of sixteen Freesia refracta cultivars were analyzed by the specific color reactions and UV-visible spectrum.

以小苍兰16个不同花色品种及后代为试验材料，对花瓣色素用特征显色反应和紫外-可见光谱扫描，分析其色素的成分和花色素苷的稳定性。

The deep UV lithography is also studied by using corrected Fresnel diffraction model.

进行了深度紫外光刻模拟，并对模拟结果进行了实验结果验证。

The experiments of UV proximity lithography show that the corrected Fresnel diffraction model could get more accurate results than that of the Fresnel model.

同时计算机模拟和实验结果都说明尺寸越小的微结构，所能够得到的光刻深度越小，需要的曝光剂量越大；光刻所得微结构的中间会比较宽。

The N and Al elements hindered phase transfer of TiO_2, restrained growth of nano-TiO_2 particles and improved the crystallization temperature. Degradation ability of N and Al co-doped TiO_2 thin films annealed at 500℃to acid fuchsin whether under UV light or under artificial simulated sun light was the best.

无论是在紫外光下还是人工模拟太阳光下，其对酸性品红的降解效果存在一个最佳退火温度。500℃退火处理N和Al共掺杂TiO_2薄膜的光催化活性最高。

One of the bright yellow pigment was presumed to be fucoxanthin based on its typical UV-vis spectrum.

采用DPPH法和圆纸片法分别研究了海带总色素和褐藻黄素的抗氧化活性和抑菌活性。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。