氢化

In this dissertation, we changed the PECVD technique parameters, and deposited amorphous, microcrystalline and polymorphous silicon films.

本论文通过改变PECVD工艺条件，制备了非晶、微晶和多形硅三种氢化硅薄膜。

The crystalline mechanism difference of microcrystalline and polymorphous silicon was investigated by thermal gradient theoretical and hydrogen etching model.

研究电阻对时间的依赖关系表明氢化硅电阻值随测试时间增大而增大，XPS测试结果表明薄膜的氧化增大了薄膜电阻。

The distribution of protium and deuterium in zirconium hydride films are analyzed by using depth profiles and images of SIMS.

电阻蒸发制备的锆膜氢化后，利用二次离子质谱对其进行了深度剖析与成像分析，结果表明氕与氘在锆膜深度分布均匀，在过渡层中呈递减分布，并消失于过渡层与衬底的交界处。

In this dissertation, Ir-catalyzed asymmetric hydrogenation of quinoline derivatives, pyridine derivatives and exocyclic enamines have been studied.

本论文研究了铱催化的喹啉和吡啶衍生物以及环外烯胺的不对称氢化。

Objective To investigate the roles of antioxidant, pyrrolidine dithiocarbamate in severe acute pancreatitis.

目的 探讨抗氧化剂四氢化吡咯二硫代氨基甲酸脂对重症急性胰腺炎的抑制作用。

Methods: 72 Wistar rats were randomly divided into sham-operation group, SAP group, and SAP previously treated with pyrrolidine dithiocarbamate group.

Wistar大鼠72只，随机分为三组：假手术组；重症急性胰腺炎组；四氢化吡咯二硫代氨基甲酸脂治疗组。

In the course of the reduction of 2, 4-diamino-5-methyl-6-nitro quinazoline instead of using 〓 catalytic hydrogenation was used for improving the yield.

改进了原合成路线中的〓〓还原的方法，采用催化氢化的方法（催化剂为5％Pd/C），使反应的产率接近8O％。

Up to 97% ee was also obtained in the asymmetric hydrogenation of the more difficult and less studied 2,3-disubstitued quinoline derivatives.

以手性二胺与金属铱形成的配合物Cp*Ir(CF3TsDPEN)为催化剂，研究了在空气条件下喹啉衍生物的不对称氢化反应。

Benzyloxy benzoyldimethylsulfoxide was prepared by the reaction of ethyl 4-benzyloxybenzoate and dimethyl sulfoxide in the presence of sodium hydride, followed by Pummerer reaction with concentrated hydrochloric acid to afford eo-hydroxy-co-thio-methyl-(4/-benzyloxy) acetophenone, which reacted with urea, thiosemicarbazide, semicarbazide hydrochloride and o-phenylenediamine to give imidazolidine-2,4-dione, l,2,4-triazine-3- one and quinoxaline derivatives, respectively.

本文用4-苄氧基苯甲酸乙酯和二甲亚砜为原料，在氢化钠存在下反应，合成了(4′-苄氧基)-苯甲酰基-二甲亚砜。研究了该亚砜在浓盐酸的存在下发生的Pummerer重排反应，用重排产物ω-羟基-ω-甲硫基-(4′-苄氧基)-苯乙酮分别与尿素、氨基脲、氨基硫脲和邻苯二胺反应合成了2，4-咪唑啉-二酮、1，2，4-三嗪-3-酮、喹喔啉等含氮杂环化合物。

We prospectively compared the analgesic, side effect, and rehabilitation profiles of caudal clonidine, hydromorphone, or morphine in a group of 60 pediatric patients undergoing ureteral reimplantation.

作者比较了一组60例小儿输尿管移植术骶管使用可tilde；？定或氢化吗啡酮或吗啡镇痛的副作用与恢复的差别。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。