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This sequence was cloned into eukaryotic expression vector and then expressed in pichia pastoris to overproduce post-translationally modified protein of interest.

在通过甲醇诱导表达后,分别得到了水稻丙酮酸脱羧酶的a亚基和β亚基

The carboxyl groups of HPAM replace the H〓O ligands of AlCA, which results in the formation of HPAM-AlCA gel.

首次用实验证明了:HPAM大分子中与AlCA反应的基团为羧基,酰胺基不参与交联反应。

At the same time, the data of tatal acidic group, phenolic hydroxyl group and carboxy were obtained.

给出了各种原料煤腐植酸中总酸性基、羧基、酚羟基的分析数据。

The Solidification temperature range was defined as 110-200℃ by DSC analysis. More accelerant used can increase the casing samples dynamic performance, but more than enough accelerant can induce a severe solidified reaction that result in a smaller polymeric meshwork and reducing the sample's performance. Normally the Accelerant dosage can be 2 portions; The Epoxy resin CFRP has a obvious better performances than the Vinyl-ester Resin CFRP, i.e. had a Bend Strength of 1516MPa, LSS of 85MPa, also Tg raised to 195~C~ When used the end-carboxyl polyether to reinforce the epoxy resin, the casing sample's SS, BS and Crack Elongation all increased geminately. The CFRP performance also increased a little, that is because the performance of the CFRP mainly contributed by the CF. The reinforced resin improved the interface between the CF and resin that contribute to the little increasing.

通过DSC分析确定了该环氧树脂的固化温度范围为110~200℃,促进剂增加会提高浇注体力学性能,但过多的促进剂会使固化反应剧烈,聚合网络减小,使浇注体性能下降,一般用量为2份左右;以环氧树脂为基体的复合材料性能明显比以乙烯基酯树脂的性能提高,弯曲强度达到1516MPa,层间剪切强度达到85MPa,同时Tg也上升到195℃;用端羧基聚醚增韧环氧树脂后,其浇注体的拉伸强度、弯曲强度及断裂伸长都成倍增加,复合材料的性能也有所提高,但提高幅度不大,因为复合材料的力学性能主要由碳纤维承担,树脂增韧后改善了复合材料的界面性能。

Investigation of major metabolic pathways of SFZ-47 in animals The metabolites of SFZ-47 in rabbit urine following oral administration were separated and detected with HPLC and LC-MS methods. On the basis of the chromatographic behavior and mass spectra of the metabolites as well as biotransformation pathways of drugs with the partial structure of SFZ-47, the hydroxylic derivative 4-(3H-1, 2- dihydro-1-pyrrolizinone-2-methylamino benzyl alcohol and the carboxylic derivative 4-(3H-1, 2-dihydro-1-pyrrolizinone-2-methylamino benzoic acid of SFZ-47 were proposed as two potential metabolites and were synthesized.

在动物体内主要代谢途径的确定用HPLC和LC-MS对家兔口服SFZ-47后尿中的代谢物进行了分离、检测,根据代谢产物的色谱和质谱行为以及与SFZ-47有类似结构部分的其它药物的代谢途径,推测其羟基衍生物[4-(3H-1,2-二氢-1-吡咯里嗪酮-2-甲基胺基)苯甲醇]与羧基衍生物[4-(3H-1,2-二氢-1-吡咯里嗪酮-2-甲基胺基)苯甲酸]是两种可能的代谢产物,遂用化学方法合成了这两种衍生物。

A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; and a mixture of two or more different selectivity control agents, said SCA mixture comprising from 1 to 99 percent of one or more esters of one or more aromatic monocarboxylic acids or substituted derivatives thereof, and from 99 to 1 percent of one or more alkoxysilane compounds.

一种用于丙烯聚合的催化剂组合物,包括:一种或多种齐格勒-纳塔主催化剂组合物,该齐格勒-纳塔主催化剂组合物包括一种或多种过渡金属化合物和一种或多种芳族二羧酸酯内部电子给体;一种或多种包含铝的辅催化剂;和两种或更多种不同的选择性控制剂的混合物,所述SCA混合物包括1到99%的一种或多种芳族单羧酸的一种或多种酯或其取代衍生物、和99到1%的一种或多种烷氧基硅烷化合物。

Carboxybenzyloxy)phenylacetic acidwas synthesized from 4-Hydroxyphenyl acetic acidand phthalide in the presence of the catalyst sodium methoxide.

采用对羟基苯乙酸和苯酞为原料,在甲醇钠的催化下,以n∶n∶n=1.0∶1.1∶2.2,于130℃反应7h制备4-(2-羧基苄氧基)苯乙酸。

Two sorts of polyacrylate derivates were designed and systhesized. One has benzoic acid groups linked to backbone via an alkyl chain of different length, the other has pyridyl groups at its side chain. On the basis of hydrogen-bonding between carboxyl and pyridyl groups, multilayer film was fabricated in mixed solvents. We studied the effect of either the composition of mixed solvents or length of alkyl chain on the structure of a multilayer film.

设计合成了两类聚丙烯酸酯类高分子,一种侧链含有通过不同个数的亚甲基和主链相连的苯甲酸基团,另一种侧链含有吡啶基团,基于羧基和吡啶基之间的氢键相互作用,在混合溶剂中制备了多层膜,并研究了溶剂组成与高分子侧链间隔基长度对多层膜结构的影响。

The sixth part: The spectrophotometric performance of the new type aresenoxylphenylazo rhodanine and carboxylphenylazo rhodanine ramifications was mainly studied.

第六部分:主要研究了几种新型含胂酸基、羧基若丹宁衍生物的分光光度性能。

X-ray single crystal diffraction study reveals that the Zn atom is five-coordinated, Furthermore, a 2D superamolecular network is constructed via the tetracarboxylate bridged binuclear of Zinc SBU ,and the amino substituent results in the formation of hydrophilic 2D structure of the title complex.

该配合物中,锌离子为5配位,2个Zn原子和4个羧基形成的双核锌结构单元,进而形成二维方格式平面结构,氨基取代基导致配合物具有亲水性。

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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.

第三章汉藏语&的&字结构的类型划分。