查询词典 vis.

In this paper, transparent Er(superscript 2+) ions doped oxyfluoride glass-ceramics was prepared by high temperature melting and thermal treatment technology. The changes of micro-crystals structure, UV-VIS absorption spectra and NIR emitting spectra occurred with the variety of Er(superscript 3+) concentrations were studied.

采用高温熔融及热处理工艺，制备了透明度良好的Er(上标 3+)离子掺杂的氟氧化物玻璃陶瓷，并研究了不同Er(上标 3+)离子掺杂浓度下，玻璃陶瓷微晶结构、紫外－可见波段吸收光谱、近红外发射光谱的变化。

He catalyst had highest Vis photoactivity when the content of TiO_2 was about 20-30%.

iO_2含量也将影响样品光催化活性，当TiO_2含量达到20%～30%时，样品光催化活性最好。

The results show that the La doping inhibited the phase transformation from anatase to rutile, and improved the optical absorption and surface area of catalysts, also could effectively enhanced the photoactivity.

本论文主要研究了在水热法的基础上进行改进，通过不需要高温煅烧的路线制备了镧离子掺杂TiO_2光催化剂，并通过XRD、UV-Vis、IR、BET等表征手段详细考察了制备条件对催化剂的结构和活性的影响。

The photochromic and photo-induced radical properties were investigated by means of UV-Vis and electron spin resonance spectroscopy, respectively.

通过紫外光谱和电子自旋光谱研究了其光致变色及光致自由基性质。

We study the photoisomerization reaction of long-chain spiropyran in mixed LB film by atomic force microscope and UV-vis spectroscopy.

我们采用原子力显微镜和紫外可见光谱研究了混合LB膜中螺吡喃分子的光致变色反应。

The photoisomerization reaction of norbornadiene to form quadricyclane was carried out in a photoreactor in order to study the effects of the structure of the catalysts on their catalytic activity.

制备了Zn掺杂TiO_2、La掺杂ZnO/TiO_2、Ti-MCM-41和MCM-TiO_2催化剂，利用XRD、BET、TEM、XPS、DR UV-vis、FT-IR、N2吸附-脱附等技术对催化剂进行了表征，在光反应器中进行了降冰片二烯异构化生成四环烷的反应，研究了制备方法对催化剂的结构和性能的影响规律。

The reversible photoisomerization of HOOCAzoC4SH SAM was studied by UV-Vis absorption spectrum and atomic force microscopy techniques.

首先合成羧基偶氮苯衍生物，并在金膜表面制备偶氮苯自组装膜，采用紫外吸收光谱、原子力显微镜观察偶氮苯衍生物的光学顺反异构现象以及偶氮苯自组装膜表面形貌的变化。

Their UV-Vis absorption and photoluminescent properties, as well as their electrochemical properties and thermal stability were also studied.

研究结果表明，这类双极传输材料具有咔唑和芳基噁二唑双功能基的紫外可见吸收和光致发光综合特性。

The concentrations of petroleum in photolytic processes were analyzed by UV-Vis.

结果表明，石油在土壤表面上的光化学降解行为符合准一级反应动力学，实验测得石油的光解速率常数为0.002 6-0.017 2 h^-1，半衰期为

In this paper, twenty novel meso-substituted porphyrins of four series were designed and synthesized by increasing the conjugation of porphyrins or introducing substituents with high fluorescence quantum yield into the meso-position of porphine, and then red OLEDs were fabricated by doping porphyrins into a suitable host using ten porphyrins compounds and their electrolumin -escence properties were tested. The main contents and results were generalized as follows:Three meso-tetrakisporphyrins 4a-c and three conjugations of porphine-triarylamine linked by styrene 10a-c were synthesized and characterized by 1H NMR, MS, UV-vis spectra and fluorescence emission spectra.

本文通过增大卟啉分子的共轭结构或将具有高荧光量子产率的基团连接到卟吩环的中位得到了四类共20个新型的卟啉化合物，并选取其中10个化合物制备有机发光器件来考察材料的电致发光性能，具体内容包括以下几个部分：设计合成了3个中位直接被三芳胺取代的卟啉化合物4a-c和3个通过苯乙烯连接的卟吩-三芳胺共轭体10a-c，通过核磁氢谱、质谱、紫外吸收光谱和荧光发射光谱表征了新化合物的结构。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷