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The thermal inactivation of penicillin amidase entrapped in AOT/isooctane reversed micelles was studied in detail.

研究了青霉素酰化酶在二-(2-乙基己基)琥珀酸双酯磺酸钠/异辛烷反胶团中的稳定特性。

Some materials were synthesized in this paper at first, 1-nitro-2-pentanol was synthesized with nitromathane and butyraldehyde and the yield was 70.2%; l-nitro-2-pentanol was reduced to 1 -amino-2- pentanol with iron and the yield was 65.2%.

分别用氢氧化钠、三乙胺为缚酸剂,2-氨基-1-丁醇、1-氨基-2-戊醇、环己酮和二氯乙酰氯为原料,采用一步法和分步法合成了两种潜在除草剂安全剂。

The main photoproducts in dioxane and hexane are 2-chloro benzamide and 4-chlorophenyl isocyanate.

在二氧六环及正己烷中的主要光解产物为邻氯苯甲酰胺和对氯苯基异氰酸酯。

Objective: To explore the effects of 1-4 -[2 -( 1- ethyl - 2,3 – dioxopiperazine-4- carboxamido ethyl] -phenylsulfonyl -3 -cyclohexyl urea on the fasting blood glucose and the blood lipemia in the streptozotocin -induced diabetic once and the glucose uptake in SMMC7721 cells.

目的:研究观察二氧代哌嗪苯磺酰环己脉对链脲佐菌素诱导的2型糖尿病小鼠血糖血脂的影响以及刺激SMMC7721细胞对3H-2-脱氧葡萄糖吸收影响。

Two compounds were synthesized with two methods. The two compounds can be synthesized by two steps with triethylamine as catalyst.

分别用氢氧化钠、三乙胺为缚酸剂,3-氨基-2-丁醇、2-氨基-3-戊醇、环己酮和二氯乙酰氯为原料,采用一步法和分步法合成了两种潜在除草剂安全剂。

Was synthesized from cyanoacetic acid and diethylamine via DCC coupling under mild conditions.

中间体5 的制备由氰基乙酸在二环己基碳二亚胺作用下经酰胺化一步制得,条件温和,收率较高,避免使用剧毒的氰化钠。

The invention relates to a mixed additive used in lithium secondary battery electrolyte, which is characterized in that: its components comprises that biphenyl at 0.5-95.4%, phenylcyclohexyl at 1.1-93.8%, vinylene carbonate at 0.4-93.2%, tertiary carbon alkyl benzene at 0.5-96.5%; and ethenyl sulfonyl benzene at

本发明公开了一种锂离子二次电池电解液用混合添加剂,其特征在于:组分与重量%分别是:联苯类0.5%~95.4%;环己基苯类1.1%~93.8%;碳酸亚乙烯酯0.4%~93.2%;叔碳烷基苯0.5%~96.5%;乙烯基硫酰苯0.5%~95.8%。

Chinese patent medicine ; Zilongjin ; hexamethylene bisacetamid ; cell cycle ; oncogenes ; genes ; tumor suppressor

中成药;紫龙金;环六亚甲基二己酰胺;细胞周期;癌基因;基因;肿瘤抑制

Objective To investigate the effects of the Chinese drug Zilongjin and hexamethylene bisacetamid on expression of oncogenes(c-ras,c-myc),and tumorsuppressor genes(Rb,p53,p21)of MGc803 cell in cell cycle.

目的 探讨中药紫龙金与环六亚甲基二己酰胺对人胃癌MGc80 3不同周期细胞癌基因c ras、c myc、抑癌基因Rb、p5 3、p2 1以及蛋白激酶PKC a基因表达的影响。方法采用Northernblot印迹法检测基因表达情况。

The α-monobromination of 2-pentone,4-methyl acetophenone,4-methoxyacetophenone,6-methoxy-2-acetylnaphthane,2,2,5,5-tetramethyl-3-hexanone,cyclooctanone,cyclododecanone with respectively,were studied.

研究了离子液体三溴化1-丁基-3-甲基咪唑[Br3]对2-戊酮、4-甲基苯乙酮、4-甲氧基苯乙酮、6-甲氧基-2-乙酰基萘、2,2,5,5-4-甲基-3-己酮、环辛酮、环十二酮、丁醛等羰基化合物的α-溴化反应。

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Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势,并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。

This dramatic range, steeper than the Himalayas, is the upturned rim of the eastern edge of Tibet, a plateau that has risen to 5 km in response to the slow but un stoppable collision of India with Asia that began about 55 million years ago and which continues unabated today.

这一引人注目的地域范围,比喜马拉雅山更加陡峭,是处于西藏东部边缘的朝上翻的边框地带。响应启始于约5500万年前的、缓慢的但却不可阻挡的印度与亚洲地壳板块碰撞,高原已上升至五千米,这种碰撞持续至今,毫无衰退。