查询词典 hydrogenase

Biogenetic gas;origin of hydrogen;biochemical action;hydrogenase;isotopic composition

生物气；氢的来源；生物化学作用；氢化酶；同位素组成

RESULTS Xiaocuoling at the concentration of 2.5、5.0、10.0g.kg-1 obviously inhibited the paws swelling induced by carrageenin in mice and the granuloma with cotten pellet in rats,decreased the penetration of blood capillary caused by histamine,increased the activity of peroxide hydrogenase in RBC,reduced the reaction of the torsive body induced by acetic acid in mice,and had no effects on the serum concentrations of testosterone of serum in male rats.

结果：消痤灵颗粒 2.5、5.0、10.0g.kg-1可显著抑制角叉菜胶所致的小鼠足趾肿胀和大鼠棉球肉芽肿，降低由组胺诱导的小鼠皮肤毛细血管通透性的增加，提高红细胞过氧化氢酶的活力。对乙酸致小鼠扭体反应有抑制作用。对雄性大鼠血清睾酮含量无影响。

hydrogenase and hydrogenase are the main types of hydrogenase s and have different s.

氢酶是产氢过程中的关键酶，催化氢的氧化或质子的还原。

Chemical mimic of the Fe-only hydrogenase active site is mainly discussed in this thesis.

因此，唯铁氢化酶活性中心的化学模拟是本论文的主要研究内容。

The activity of H2 production of Fe-only hydrogenase is 10-100 times as high as that of hydrogenase.

其中，唯铁氢化酶的产氢活性是镍铁氢化酶的10-100倍。

NiFe hydrogenase and hydrogenase are the main types of hydrogenases and have different structures but similar catalytic mechanism.

氢酶主要有氢酶和氢酶两种，具有不同的结构，但催化机理是相似的。

According to the metal atoms within hydrogenase , it can be classified as NiFe- hydrogenase , Fe- hydrogenase and metal-free hydrogenase .

氢酶是一类催化氢的氧化或质子还原的酶，它在微生物产氢过程中扮演着重要角色。

Time course of expression of hydrogenase activity showed that the derepression of hydrogenase activity depended on nickel.

除镍外其他二价金属离子如钼、铜、锌、钴、铁、镁、锰、钙等未发现对吸氢活性有促进作用。

This paper reviews recent developments in the design and assembly of hydrogenase-modified electrodes, wherein the enzyme was immobilized by physical adsorption, self-assembly, sol-gel and Langmuir-Blodgett methods. Electrochemical properties of hydrogenase in the molecular assemblies and biohydrogen production are discussed.

本文综述了氢酶及其分子聚集体薄膜在电极表面的组装技术，如吸附法、自组装法、Langmuir-Blodgett法和溶胶－凝胶法等，并讨论了分子聚集体薄膜中氢酶的结构、生物活性、电化学性质及其在催化产氢方面的应用。

Since the first crystal structure of the Fe-only hydrogenase was published in 1998, intensive efforts have been spent on the structural and functional models of Fe-only hydrogenase due to its great capability of catalyzing the reduction of protons to molecular hydrogen at extraordinarily high rates.

自从1998年唯铁氢化酶的第一个晶体结构发表以来，由于它可高效地催化质子还原成氢气，其活性中心的结构和功能模拟受到了广泛关注。

Objective: To study the effect of polycythemia on blood oxygen saturation.

裴蕾目的：观察RBC剧增而引起的高粘血症对血氧饱和度的影响。

Based on SIMPLER algorithm in the curvilinear body-fitted coordinates, the calculations were performed for Pr=0.7, Re=10~1000 on non-orthogonal non-staggered grids which are generated by elliptic equation systems.

采用曲线坐标系下压力与速度耦合的SIMPLER算法，数值研究了周期性渐扩渐缩波纹通道内脉动流动与换热情况，流动Re数的范围为10~1000，Pr数为0.7。