查询词典 UV

In this paper, the distribution of clinopyroxene, orthopyroxene, olivine, plagioclase and ilmenite on lunar surface was mapped based on Hapke radioactive transfer model and linear unmixing of spectra using Clementine UV/VIS/NIR data. The result is compared with the results obtained by previous researchers and Apollo sample analysis, and the problems existing in mineral abundance mapping are analyzed preliminarily.

基于Hapke模型与光谱线性分解的矿物提取方法，利用Clementine UV/VIS/NIR数据提取月表单斜辉石、斜方辉石、橄榄石、斜长石及钛铁矿等5类主要矿物的体积百分含量分布，并基于阿波罗月岩矿物分析数据对提取结果进行评价，对方法和提取结果中存在的问题进行分析，提出了进一步改进的措施。

By using TiO〓 and Ag-TiO〓 as photocatalyst, 257nm wavelength UV as light source, methylene blue and phenol as model compounds, photoregenerations of wooden and coaly activated carbons were performed in suspension system and immobilized system respectively.

以TiO〓和Ag-TiO〓为光催化剂，主波长257nm的紫外杀菌灯为光源，亚甲基蓝、苯酚为模型化合物，分别研究木质、煤质活性炭在悬浮钛体系及负载体系的光再生。

And the content of capillary ion chromatography instrument includes micro-flow pump, injector, suppressors, conductometric detectors, UV-Vis detectors and fluorescence detectors with small volumes.

对毛细管离子色谱仪的总结包括微流量泵、小体积进样器、适合毛细管离子色谱系统的小体积抑制器、电导和光学检测器等。

And the content of capillary ion chromatography instrument includes micro-flow pump, injector, suppressors, conductometric detectors, UV-Vis detectors and fluorescence detectors with small volumes.

对毛细管离子色谱仪的总结包括微流量泵、体积进样器、合毛细管离子色谱系统的小体积抑制器、导和光学检测器等。

The factors affect on the degree of substitution of product, yield and apparent viscosity, such as the mol rates of EPTAC with -NH2, reaction temperature, reaction time and the content of water in system have been discussed in detail. FTIR spectrometer and UV spectrometer are used to characterize the structure of the derivative and it is proved that substitution reaction mainly occurs on the -N element .The particle size and morphology of chitosan and quantemary ammonium salt of chitosan are analysised by comparing photos of their scanning electron microscope. The degree of substitution of HACC is determined by acid -base conductometric titration. An error in current formula of DS has pointed out and a correct formula has presented.On the base of experience of above experiment, the reaction conditions of HACC were systematically investigated through orthogonal design, and then the best conditions are found. Water-solubility and dependence of pH are studied.

壳聚糖和环氧丙基三甲基氯化铵在异相条件下发生反应，通过单因素实验，制备了一系列不同性能的壳聚糖季铵盐，本文首次详细讨论了反应条件(反应摩尔比、反应时间、反应温度、水含量)对产率及产物性能的影响；用红外光谱和核磁共振对结构进行表征分析时，发现季铵盐阳离子基以N位上取代为主；通过电镜图片对壳聚糖和季铵盐衍生物外观形貌进行对比，采用酸碱电导滴定法测定产物的取代度，并对常用取代度公式做了修正。

Key words: UV protectant; entomopathogenic fungi; conidial protection

组合使用紫外保护剂并不能增强保护效果。

Raman spectrum, UV-Vis spectra, IR, NIR and XPS spectra were used to characterize the material. The result indicates that there is a conjugative effect between MWNT and bromine, which induces the change of electron distribution on the MWNT surface. It increased the car- rier density and the electrical conductivity of MWNT became higher.

通过拉曼光谱，紫外可见光谱，红外吸收光谱，近红外吸收光谱和X光电子能谱等方法研究，结果表明：溴与多壁碳纳米管之间存在共轭作用，使多壁碳纳米管表面的电子云分布发生了变化，导致空穴载流子的产生，增加了载流子浓度，提高了多壁碳纳米管的导电性能。

PS, NIR, UV and Raman spectra indicated that there was conjugative effect between MWNT and bromine which induced the movement of π electrons from MWNT to bromine to increase the hole carrier density.

光电子能谱、近红外光谱、紫外光谱、拉曼光谱表明多壁碳纳米管与溴之间存在共轭作用，这种作用导致多壁碳纳米管上的π电子向溴偏移，产生空穴载流子。

The results showed that the fresh-keeping time of Coprinus comatus was prolonged markedly after the treatment of UV-C. The fresh-keeping time extended from 6－7 days to 10－11 days at 4℃ and from 2 days to 4 days at normal temperature.

研究结果表明，UV-C照射处理能够显著延长鸡腿菇的保鲜时间，鸡腿菇在4℃贮藏时的保鲜时间由处理前的6～7 d延长至10～11 d，在常温下的保鲜时间由2 d延长至4 d以上。

Metabolites, including 1 phenolic diterpene, 2 phenolic acids (rosmarinic acid and caffeic acid), 2 flavonoids (6-methoxyluteolin-7-glucoside and homoplantaginin) and 1 coumaric acid ( cis-4-glucosyloxycinnamic acid), were successfully identified from two rosemary extracts with chloroform-methanol ( v / v , 3/1) and 50% aqueous methanol on the basis of HPLC, UV, NMR and MS data.

基于高效液相色谱、紫外吸收、核磁共振波谱及质谱数据，具有代表性的6个迷迭香代谢物的结构得到了确定，它们分别为1个酚类二萜、2个酚酸、2个黄酮（6-甲氧基木樨草素-7-葡萄糖苷和高车前甙）和1个香豆酸(顺-4-香豆酸葡萄糖苷)。

With regard to the manner of ringing the Angelus it seems sufficient to note that the triple stroke repeated three times with a pause between seems to have been adopted from the very beginning.

对於方式响铃三钟经，似乎足以说明这三重中风重复3次，稍作停顿之间似乎已被采纳，从一开始的。

The doorway was crammed with people, well wrapped up wintry people smelling of brilliantine.

门洞子里挤满了人，有脑油气味的，棉墩墩的冬天的人。