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New method of racemization of L-Phenylalanine in aqueous solutions at ambient conditions was found and its industrialization process was successfully carried into execution.

常压下L形苯丙氨酸在水溶液中的消旋新方法首次发现并在工业上成功研究,建立了相应的L-苯丙氨酸水溶液消旋动力学模型。

Ruthenium catalysts are known to be quite sensitive to the nature of supports, promoters and precursors in ammonia synthesis.

介绍了钌系氨合成催化剂的载体、促进剂、钌活性前身物对氨合成催化活性的影响。

Objective To investigate the effects of alanyl-glutamine on lipopoly- saccharide induced acute lung injury in rat and its mechanisms.

目的探讨丙氨酰谷氨酰胺对内毒素诱导的大鼠急性肺损伤的影响及其机制。

By temperature programmed desorption of ammonia, pillared saponite showed high strong acidity in the temperature range 350~650℃.

氨程序升温脱附实验发现铝柱皂石在350~650℃区间具有较强的氨脱附量,表明层柱皂石具有层柱蒙脱土所没有的强酸中心。

Protection by selenium in the mammalian cell is mediated by selenol-aminoacids, either as selenocysteine or selenomethionine.

硒在哺乳动物细胞中的保护作用受含硒氨基酸如硒半胱氨酸、硒蛋氨酸的调控。

Sphingosine 1-phosphate (S1P),which can be impacted by different growth factors through sphingosine kinase,is a bioactive lipid produced by metabolism of sphingolipid with various biological responses.

体内1-磷酸鞘氨醇(sphingosine 1-phosphase,S1P)主要来源于细胞膜鞘磷脂的分解代谢,参与S1P生物合成调节的关键限速酶为鞘氨醇激酶(sphingosine kinase,SphK)[1]。

AIM: To explore the effects of peroxisome proliferator-activated receptor γ on the activity and expression of γ-glutamylcysteine synthetase, and its role in rats with chronic obstructive pulmonary disease.

目的: 探讨过氧化物酶体增生物激活受体γ对慢性阻塞性肺疾病大鼠肺γ-谷氨酰半胱氨酸合成酶活性及表达的影响,及在COPD发病中的作用。

AIM: To investigate the effect of erythromycin on the level of transforming growth factor-β1 (TGF-β1) and γ-glutaglutamylcysteine synthetase in smoking rats,and to explore the antioxidate therapeutic role of erythromycin in chronic obstructive pulmonary disease.

目的: 探讨红霉素对吸烟大鼠肺内转化生长因子-β1(TGF-β1)和γ-谷氨酰半胱氨酸合成酶的影响以及在慢性阻塞性肺疾病治疗中的抗氧化作用。

The research aimed to lay a foundation for the construction of threonine-gene engineering bacteria and the industrial production of threonine.

[目的]为苏氨酸基因工程菌的构建和苏氨酸的工业化生产奠定基础。

A large number of tests showed that threonine had the nutrition functions for poultry in different stages and for different production purposes.

苏氨酸是家禽维持和生长所必需的氨基酸,大量实验证明,苏氨酸对不同生长阶段和生产目的的家禽都有营养功能。

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你知道吗,我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。

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。