查询词典 penicillin

It took the discovery of penicillin by Alexander Fleming, a Scottish physician engaged in research at St.

伦敦圣玛丽医院从事研究的苏格兰医生亚力山大。

It is a myth that Alexander Fleming discovered penicillin by chance .

亚历山大·佛莱明偶然发明青霉素可以说是一个神话。

The kinetics of PenG hydrolysis catalyzed by penicillin amidase entrapped in the reversed micelles was studied.

研究了青霉素酰化酶在AOT/异辛烷反胶团体系中催化PenG水解反应的动力学。

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。

It has been shown that penicillin amidase was very susceptible to the change of temperature, extremely apt to deactivate in the buffer; while the thermostability of enzyme could be improved by an average of 2～4 times in the reversed micelles.

结果表明，青霉素酰化酶对温度非常敏感，在水溶液中极易失活，而经反胶团包埋后，其热稳定性有很大程度的提高，热失活明显减少。

The hydrolysis course of PenG catalyzed by penicillin amidase entrapped in the AOT/isooctane reversed micelles was investigated.

通过将青霉素酰化酶包埋于AOT/异辛烷反胶团中，对PenG酶促水解过程进行了研究。

At the same temperature, k〓 in the reversed micelles was always less than k＇〓 in the buffer. According to the thermodynamic analysis for inactivation of penicillin amidase in the reversed micelles, the free energy of activation was increased by 2. 71%, while the entropies and enthalpies of activation were decreased, corresponding to 63. 9% and 76. 9% of that in pure buffer respectively.

由热力学分析可知，青霉素酰化酶在AOT/异辛烷反胶团中的热失活过程，与水溶液中相比，活化自由能△G〓增加了2.71％，而活化熵△S〓和活化焓△H〓分别减小为原来的63.9％、76.9％，从而使酶热稳定性平均提高了2～4倍。

The deactivation rates of penicillin amidase in both systems follow the first-order model. The inactivation rate constants increased gradually and α decreased slightly, with the increase of temperature.

随着温度的升高，失活速率常数k〓和k＇〓逐渐增大，α略有所降低；当体系温度相同时，该酶在反胶团中的k〓值比水溶液中的k＇〓小。

With penicillin amidase entrapped in AOT/isooctane reversed micelles.

根据合理假设，建立了青霉素酰化酶在该耦合系统中水解PenG的反应动力学模型，与实验结果基本吻合。

A typical drug aminopyrine, in addition to levamisole, semi-synthetic penicillin may also cause.

典型药物是氨基比林，此外左旋咪唑、半合成青霉素也可引起。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。