查询词典 hydrogen

Production of dimethyl ether from greenhouse gas CO2 and hydrogen is a possible way to solve above problems.

论文摘要：我国石油资源的日趋紧缺，而工业氢能源却大量浪费。

The fine structure Hamiltonian for Hydrogen-like atoms is derived using the nonrelativistic approximation of the Dirac equation for one electron moving in the Coulomb field.

从Coulomb场中运动的电子的Dirac方程出发，取其非相对论极限导出了类氢离子的精细结构哈密顿的表达式。

The results show that direct decomposition of hydrogen sulfide under ultraviolet light could occur without catalyst.

实验结果表明，UVC可以在无催化剂条件下直接分解硫化氢制氢。

After the complete consumption of stored hydrogen, direct catalytic decomposition of NO occurred.

在973 K时，NO在CNTs上几乎能100％分解，连续反应150 min后其反应活性不降低，且未观察到CO或CO2的生成。

The order of elution, as well as the migration time and separation efficiency of these compounds changes with the acidity of the solution, which suggests the disassociation of the hydrogen on the secondary amino group in these compounds.

它不仅影响化合物的迁移时间和分离效率，还改变其出峰顺序，这与碱性条件下化合物仲胺基上氢的电离有关。

This method is simple, sensitive and suitale for the determination of hydrogen peroxide in disinfector with satisfactory results.

该方法简单、快速，用于医用双氧水中H2O2含量的测定，结果令人满意。

Superoxide dismutases family are thought to be one of the first lines of antioxidant defense and are highly efficient in protecting cells and tissues against oxidative stress by catalyzing the dismutation of superoxide radicals to form hydrogen peroxide and molecular oxygen.

但由于活性氧分子反应的非特异性，它们也会破坏宿主机体细胞内的功能蛋白分子、不饱和脂肪酸分子和核酸等，对细胞造成严重的伤害，进而导致机体生理机能的损伤和免疫系统的破坏。

Superoxide Dismutases are ubiquitously expressed antioxidant enzyme in aerobic organisms and catalyze dismutation of superoxide anion to hydrogen and molecular oxygen,the first step in active oxygen-scavenging systems.

超氧化物歧化酶(superoxide dismutase，SOD)在需氧原核生物和真核生物中广泛存在，是活性氧清除系统中第一个发挥作用的抗氧化酶。

Superoxide dismutase (EC 1.15.1.1;SOD) is a metal-containing enzyme that widely exist in organisms. It catalyzes the dismutation of superoxide free radical and produces hydrogen peroxide and oxygen.It plays an important role in protecting the plasmalemma from the reactive oxygen species.A recombinant plasmid pPICZA-sodM18 was constructed and after its linearization was transferred into chromosome of Pichia pastoris GS115 by electroporation.

超氧化物歧化酶(Superoxide dismutase；EC 1.15.1.1；SOD)是广泛存在于生物体内的金属酶，是机体内唯一以超氧阴离子自由基(O_2~-)为底物的酶，它能专一地催化O_2~-的歧化反应，生成过氧化氢和氧气，能有效的抵御氧自由基和其他氧化物自由基对细胞质膜的毒性，对机体防御氧化损伤起着十分重要的作用。

Methods: The content of 7-ACA raw material was determined on C18chromatographic column by using disodium hydrogen phosphate reagent.

用磷酸氢二钠试剂，在C18色谱柱上测定7-氨基头孢菌烷酸原料的含量。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。