查询词典 methanol

Objective To explore the effect of strategy for methanol feeding during high density fermentation of Hansenula polymorpha on the expression of recombinant HBsAg.

目的 考察不同甲醇流加策略对汉逊酵母高密度发酵表达重组乙型肝炎表面抗原的影响。

Bio-active α-hydroxynitrilelyase expressed in Hansenula polymorpha after 0.5% methanol induction was obtained with 2.015 U determined by analysis of enzyme activity and SDS-PAGE.

酶活测定和SDS-PAGE分析显示HNL在汉逊酵母NCYC495(leu1.1)中得到正确表达，每毫升发酵液中获得2.015 U的醇腈酶。

There is a highly efficient metabolism for the utilization of the one-carbon compound methanol in methylotrophic yeast species, such as Candida boidinii, HansenuLa polymorpha and Pichia pastoris.

甲基营养酵母如Candida boidinii，HansenuLa polymorpha和Pichia pastoris具有利用一碳化合物甲醇的高效代谢机制。

And a novel synthesis process of dimethyl carbonate from urea and methanol was proposed. Polyphosphoric acid is used as the catalyst and the coupling reagent in the process.

应用共生耦合理论对尿素醇解法制备碳酸二甲酯的合成反应体系进行了分析，提出了一种由尿素和甲醇制备碳酸二甲酯的新工艺。

The experimental results show that the polytropic index of compression process of dual fuel engine decreases linearly while the ignition delay increases with the increase of the methanol mass fraction.

在一台TY1100直喷柴油机进气管上安装一套电控甲醇低压喷射装置，进行了柴油引燃甲醇双燃料发动机着火滞燃期的试验研究。

The solvents commonly used in the solvothermal synthesis include alcohols (such as methanol, ethanol, isopropanol, alcohol, ethylene glycol, glycerine, etc.), amines (such as hexamethylenediamine, dimethylformamide, triethanolamine), Acetonitrile and Propionitrile, the differences of functional groups, varieties of kinds together with a wide differences of polarity, dielectric constant and boiling point of organic solvents greatly increase the diversities of the product.

溶剂热合成常用的溶剂有醇类(如甲醇、乙醇、异丙醇、正丁醇、乙二醇、甘油等)，胺类(如己二胺、二甲基甲酰胺、乙醇胺)，乙腈和丙腈等，有机溶剂由于带有不同的官能团，种类繁多，具有不同的极性、介电常数、沸点等，大大增加了合成产物的多样性。

Results By using two-phase solvent systems composed of petroleum ether-ethylacetate-methanol-water (22:25:23:17) at the flow rate of 2.0 mL/min, with rotating speed of 800 r/min, and at temperature of 25℃, the yield of d1-tetrahydropalmatine and of protopine purified from the total alkaloids being 16.9% and 14.7%, with purity of 99.3% and 98.8% respectively can be reached.

结果 石油醚－乙酸乙酯－甲醇－水(22：25：23：17)为溶剂体系，流速为2.0 mL/min，仪器转速800 r/min，温度25℃，从延胡索总碱中可一步纯化得到原阿片碱和延胡索乙素，得率分别为16.9%和14.7%，纯度分别为99.3%和98.8%。

For example, the ratio of pyrogenation will reach 90% at around 600℃, and we can get 1.8 mol hydrogen from one mol methanol.

温度在600℃左右时，甲醇热分解率达90%，每摩尔的甲醇可产生1.8摩尔左右的氢气。

We find that methanol will effectually pyrolyze and generate large amounts of hydrogen when it is heated above 400℃. The ratio of pyrogenation and amount of hydrogen generated increase rapidly with the temperature rise.

实验发现，甲醇在被加热至400℃后会开始热分解产生氢气，并且随着温度的升高，热分解率及产氢量快速增大。

The catalytic oxidation and catalytic esterification performances of NbFeSAPO-5 catalyst are studied with pyruvic and methanol as raw material.

结果表明：合成的分子筛具有AIPO4-5的骨架结构，并且铁、硅和铌金属杂原子进入了分子筛骨架。

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。