甲烷

Objective To study the influences of dichloromethane extraction from crude and processed Cornus Officinalis on bone marrow cells of aging mice induced by D-galactose.

目的 研究山茱萸生、制品二氯甲烷萃取部位对D-半乳糖致衰小鼠骨髓细胞的影响。

In this paper was preformed numerical simulation of catalytic combustion of CH4 for micro-burner with counterflow heat exchanger using both FLUENT and surface chemistry subroutine DETCHEM.

本文联合使用CFD软件FLUENT和化学反应动力学软件DETCHEM对甲烷-空气混合物在有逆流换热的微燃烧器内的催化燃烧进行了数值模拟。

They are intermediate and by-product of crystal violet lactone while it was synthesized.

LCVL和三甲烷分别是热、压敏变色染料结晶紫内酯的合成中间体及副产物。

Just like the overseas, at present, the chloroform are mainly used to produce HCFC-22 and it shares 70% total consumption; in medicine industry, the cyclopropane are used for extraction and animal remedy anesthetic etc.

在我国，二氯甲烷主要用作溶剂、清洗剂及三醋酸纤维胶片的原料。

"Decane:any of various liquid isomers, CH, of the methane series."

"癸烷：甲烷系的任何一种液体异构体，CH"

The cationic clusters Pt_2~+ and Pt_3~+can dehydrogenate methane efficiently due to remarkable thermodynamic stability of theproducts.

由于最终的生成产物拥有较高的热力学稳定性，Pt_2~+与Pt_3~+阳离子团簇都能有效地和甲烷发生脱氢反应。

In order to understanding the decomposition behaviors of natural gas hydrate in situ,the experiments of methane hydrate decomposition by depressurization in quartz sands of 40 to 20 mesh were carried out.

为了解自然赋存条件下天然气水合物的分解性质，本研究在20～40目石英砂中进行了甲烷水合物降压分解实验。

Diamond films for field emission are prepared heterogeneously on (100)-oriented Si substrates in hot filament chemical vapor deposition process,raw materials are a gas mixture of methane and hydrogen,and substrate temperature is lower than 800℃.

以甲烷和氢气的混合气体为原料，用热丝化学汽相淀积法，在(100)硅衬底上800℃温度时异质生长出适合场发射的金刚石薄膜。

Increasing the modified time from 0 day to 4 days, the surface contact angle indicated by glycerol increased from 88.7° to 99.0°, indicated by water from 54.2°to 69.1° and indicated by diazomethane declined hum 40.0° to 31.9°.

结果表明，改性0-10d的木材吸水率从138.4%下降到111.1%；木材分别经过1d、2d和4d的硅烷化改性，甘油表面接触角从未改性时的88.7°上升到99.0°，蒸馏水表面接触角从54.2°上升到69.1°，二碘甲烷则从40.0°下降到31.9°。

The recognition capability and adsorption rate of MIP can be significantly enhanced by selective modification.Separation factor could be increased from 1.60 to 3.06 after modification when naringenin was chosen as competitive molecules, and the time needed for adsorption equilibrium could be reduced from 100 min to 60 min.Within a certain range, increasing template molecule concentration or diazomethane dosage, or adopting solvent which had weaker hydrogen bond action with template molecules could all improve the modification effect.

结果表明，选择性修饰能明显提高MIP的识别能力与吸附速度，以柚皮素为竞争分子，分离因子可从修饰前的1.60提高到修饰后的3.06，吸附平衡时间从修饰前的100 min降低至修饰后的60 min；在一定范围内提高模板分子浓度，增大重氮甲烷用量，采用形成氢键能力较弱的溶剂，均能提高修饰效果。

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。