氢化

By the role of hydrogenase, hydrogen with biohydrogen-bacterium produced can quickly reach the balance of hydrogen isotope exchange with water medium.

在氢化酶作用下，产氢菌形成的氢气与水介质之间可以迅速的达到氢同位素交换平衡。

The way of the formation of methane through CO2/H2 reduced, the main origin of hydrogen elements are from production of anaerobic degradation of organic matter in the role of the hydrogenase with biohydrogen-bacterium.

对于CO2（H2）还原途径形成的甲烷，氢元素主要来源于产氢菌在氢化酶的作用对有机质的厌氧降解。

A colorless, highly flammable gaseous element, the lightest of all gases and the most abundant element in the universe, used in the production of synthetic ammonia and methanol, in petroleum refining, in the hydrogenation of organic materials, as a reducing atmosphere, in oxyhydrogen torches, and in rocket fuels.

氢：一种无色，易燃的气体物质，在所有气体中最轻，而宇宙中最多用来生产合成氨和甲醇，提炼石油，氢化有机物质作为收缩的气体，用在氧氢焰熔接器和火箭燃料中。

The hydrogenation of terpineol to dihydroterpineol catalyzed by Raney Nickel modified by potassium borohydride was studied.

研究了以硼氢化钾修饰的雷尼镍催化剂催化松油醇加氢制备二氢松油醇的反应。

In this thesis, the heterojunction with intrinsic hydrogenated amorphous silicon thin layer ( heterojunction with intrinsic thin layer: HIT) solar cells are investigated. The solar cell structure of p/i/n are fabricated. The substrate is a typical 4-inch n-type wafer with (100) crystal orientation, 1~10 ohm-cm and about 525 μm thickness. The p and i a-Si:H layers are deposited by a 13.56 MHz plasma enhanced chemical vapor deposition. The i a-Si:H layers are especially deposited by pulse-wave modulation plasma technique with fixed plasma turn-off time toff = 10 ms and changed plasma turn-on time ton= 10 to 40 ms to selectively control the different silicon to hydrogen bonding configurations. The effect of various Si:H bonds on the performance of HIT solar cells are explored.

中文摘要本论文针对异质接面薄本质层(heterojunction with intrinsic thin layer： HIT)太阳电池进行研究，采用一般典型四英吋晶向为(100，厚度约为525 μm，电阻率约为 1~10 ohm-cmn型矽晶圆为基板，制作p/i/n太阳电池，p及i层薄膜以13.56 MHz电浆加强化学气相沈积，i层并采用脉波调变电浆技术，在固定电浆关闭时间toff = 10 ms及改变电浆开启时间由ton = 10 ms 至40 ms条件下制作具有不同矽氢键结微结构的氢化非晶矽薄膜以探讨不同矽氢键结对太阳电池性能的影响。

We have synthesized 4,4'-dinitro-3 4''-dimethyl triphenylamine,(1), in 84% yield in an one-step condensation process between 3,4-dimethyl aniline and 4-fluoro-nitrobenzene. After the auto-oxidation of (1) and the subsequent hydrogenation of the nitro-groups, an AB2 type triphenylamine polyimide intermediate bearing two amine groups and one acid-anhydride group each on individual phenyl ring,{AB2 PI Intermediate}, was prepared successfully. The yields of the autoxidation and the hydrogenation steps are 81% and 90% respectively.

中文摘要本研究以3，4-二甲苯胺及4-氟硝基苯为原料，经一步骤缩合反应得到产率为84 %之4，4'-二硝基-3&，4&-二甲基三苯胺(1)，由(1)经自氧化法后再以氢化法还原硝基，成功地制备出带有二胺基与一羧基的三官能基之AB2型三苯胺中间体(AB2型PI中间体)，自氧化反应与氢化法的产率各为81%及90%。

According to the strong reducibility of lithium aluminium hydride and asymmetric selectivity of binaphthol,the authors reduce camphor into D-borneol by using D-binaphthol modified lithium aluminium hydride as chiral reagent.

根据氢化铝锂的强还原性和联萘酚的不对称选择性，用右旋联萘酚改性过的氢化铝锂为手性试剂，把樟脑还原成右旋龙脑。

Through heating zirconium hydride, high purityC02 and red phosphorous, the gas adsorbs, desorbs, scatters and finally forms the compact film on the surface of zirconium hydride.

研究了通过加热氢化锆、高纯二氧化碳和磷，在设定的工艺参数下，通过反应气体在氢化锆表面吸附、离解，然后通过元素扩散和反应生成致密的膜层。

The toxic hydrogen selenide gas was reduced, while the utilization of sodium borohydride was over a lot when the PEG-400 instead of ethanol.

相对于乙醇、水等作为介质合成二硒醚，以PEG-400为介质减少了剧毒气体硒化氢的排放，同时硼氢化钠的利用率有所提高。

We conducted a randomized controlled trial to assess the efficacy of hydrocortisone, which promotes sodium retention in the kidneys.

我们进行了随机对照试验以评估氢化可的松的疗效，氢化可的松可促进钠潴留于肾脏。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。