查询词典 Ultraviolet

The prepared PU was an elastic solid,which could dissolved in ethanol,and it exhibited strong deep purple fluorescence at the peak of 365 nm along with a shoulder at 386 nm as a thin film. Obviously,the prepared PU also was a kind of uncommon ultraviolet-emitting polymer materials.2.A novel water-soluble rod-coil block copolymer was designed and prepared successfully via the facile isocyanic acid polycondensation method using polyfluorene as rod segment and polyethylene glycol as coil segment in the main chain for the first time.

所制备的聚氨酯是一种弹性固体，可以溶解在乙醇中，同时又显示出具有半导体性质的荧光性能——最大荧光发射峰在365 nm并且在386 nm处有一个小的侧肩峰，可见它又是一种非常难得的紫外发光聚合物材料。2、首次采用了简单的异氰酸酯反应，成功地将聚芴作为刚性链段和聚乙二醇作为柔性链段，以嵌段方式连结到聚合物分子主链上，从而形成了一种新型的具有刚性链—柔性链结构的嵌段共聚物。

Ultraviolet radiation can induce HaCaT cells apoptosis.One of morphological feature of cells apoptosis is karyopyknosis and clumped chromatin and formming circularity or crescent.

紫外线辐射HaCaT细胞可诱导凋亡，细胞发生凋亡的形态学特点之一是细胞核固缩，染色质浓缩，凝集，形成环状或新月体结构。

Using ultraviolet lamp as light source, the photocatalytic activity of photo-assisted mesoporous TiO_2 katalyst was studied by photodegradation of Rhodamine B.

以紫外灯为光源，通过对水溶性染料罗丹明B的光降解反应，考察了光助中孔TiO催化剂的光催化活性。

Objective To establish a method of ultraviolet spectrophotometry to detect Konjak glucomannan in weight reducing heath food.

目的〕建立了紫外分光光度计法测定减肥保健品中魔芋葡甘露聚糖的检测方法。

The results show that the chlorite jade is in dark green, semi-translucent to opaque, and lepidoblastic texture, with hardness of 2.5, refractive index 1.58 and density 2.60 g/cm^3. It has homogeneous texture and less fissures, and no fluorescence under ultraviolet fluorescence lamp. XRD analysis shows that the mineral composition of the chlorite jade is mainly chlorite.

结果表明，该绿泥石玉呈深绿色、微透明－不透明集合体，具鳞片变晶结构，裂隙少，质地均匀，在紫外荧光灯下不发荧光，摩氏硬度为2.5，折射率为1.58，密度为2.60g/立方公分。X射线衍射分析结果表明，该绿泥石玉的物相为绿泥石。

To study microvessel density and mast cell density in lesional skin of psoriasis and effect of psoralen ultraviolet A on them.

目的 了解银屑病患者皮损微血管密度和肥大细胞密度及光化学疗法对其的影响。

To study the influence of methyl esterification on the ultraviolet absorption ofγ-linolenic acid.

目的］考察甲酯化处理对γ-亚麻酸紫外吸收的影响。

To study the influence of methyl esterification on the ultraviolet absorption of γ-linolenic acid .

考察甲酯化处理对γ-亚麻酸紫外吸收的影响。

Objective To investigate the protective effects of Lycium Barbarum Polysaccharides on fibroblast damaged by ultraviolet B.

目的 探讨枸杞多糖对中波紫外线辐射致体外培养人皮肤成纤维细胞损伤的保护作用。

The plate with mixture of lysogenic bacteria and indicator strain was induced by ultraviolet irradiation. The induction rate of λ prophage was calculated based on the PFUs.

另一种是将溶源菌与指示菌混合制备的平板用紫外线诱导，根据平板上噬菌体形成单位确定λ噬菌体紫外诱导频率。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。