查询词典 phase transition

Wesuggest that the shifting endotherm originates from the transition of oxygen-intercalated C60 to a merohedral disordered phase,in which the rotation of fullerenemolecules is partially impeded by oxygen.

我们建议那个移动的吸热峰来自于周围有氧的那部份C60，从简立方相转变到不全无序相。不全无序相的形成是由于氧对C60转动的部份阻碍所造成。

The results show that the thermal expansion coefficient changes respond to crystal phase proportion and transition.

发现样品的热膨胀系数随温度的变化行为是与样品中析出的晶相种类及析出量随温度的变化规律相对应的。

On the basis of the kinetic equation of substrate reaction in the presence of urea or guanidine hydrochloride, all microscopic kinetic constants for the free enzyme and enzyme-substrate binary and ternary complexes have been determined. The results of the present studies indicate that:①In the presence of urea or guanidine hydrochloride, enzyme-substrate complexes lose their activity less rapidly than the free enzyme. Therefore, both substrates, NADPH and 7, 8-dihydrofolate, protect dihydrofolate reductase against inactivation.②The denaturation of dihydrofolate reductase by urea follows single-phase kinetics, and changes in enzyme activity and tertiary structure proceed simultaneously in the unfolding process, so it may be an"all or none"process.③The GdnHCl-induced unfolding of the dihydrofolate shows a biphasic transition, while the change in the enzyme activity is a single exponential process. The rate constant of inactivation is consistent with that of the fast conformational change. Therefore, the kinetic intermediate of protein unfolding should be a partially folded and inactive form.

我们根据在脲或盐酸胍存在下的底物反应动力学方程求得游离酶和酶底物二元、三元复合物的微观动力学常数，结果表明：①酶-底物二元、三元复合物的失活速度明显慢于游离酶，说明两个底物二氢叶酸和NADPH对酶的失活都具有一定程度的保护作用；②在脲作用下，酶的失活和构象变化均为单指数项过程，而且酶的活力丧失和三级结构变化是同时发生的，说明二氢叶酸还原酶的脲变性可能是一个"全或无"的两态过程；③在盐酸胍作用下，酶的构象变化为两相过程，而失活则是单指数项过程，酶分子构象变化的快相速度常数与失活速度常数基本一致，因此我们认为二氢叶酸还原酶的盐酸胍变性过程中存在一个没有活力、但仍具备一定空间结构的变性中间体。

With feudality's ending and the transition to democracy, the period from the late Qing to the early times of Minguo is a especially special phase in the Chinese modern history.

晚清民初的几十年是中国近代史上极为特殊的时期。数千年沿袭的封建制度终于走向穷途，形式上被一种新的民主政体所代替，但是积袭在人们头脑中封建陈腐的思想却不是一朝一夕既能摆脱的。

The relationship of reactants, transition states, intermediates and products in affirmed by IRC. In order to study the influence of solvent, the reactions is optimize and calculate by SCRF at the same level of gaseous phase adopting Onsager model.

为研究溶剂的影响，采用基于Onsager模型的自洽反应场理论，在与气相相同的计算水平(B3LYP／6-311+G~*)上，分别进行溶剂的SCRF全优化计算。

The flow regime transition criteria for the boiling water two-phase flow in horizontal rectan- gular narrow channels(1×20mm,2×20mm) were theoretically explored.

对矩形窄缝通道(1×20mm，2×20mm)中水沸腾的汽液两相流动流型转化准则进行了研究。

We're in a phase of an important transition.

我们正在经历一个重要的转变阶段。

Experimental results were reported here regarding the gas phase conversion of CTC to methyl chloride by using transition metal salt composite catalyst embedded on active carbon.

报道了以活性炭为载体，以过渡金属无机盐为复合催化剂，在气相条件下四氯化碳与甲醇反应制备一氯甲烷的研究结果。

In the paper,the atom"s occupancy and squeezing effects with atom transition are studied by meansof the time-evolution operator method and numerical calculation. The dependence ofthese properties on atom"s initial state phase and optical fields average photonnumber is also discussed.

本文采用时间演化算符方法和数值计算研究原子在经历跃变前后原子布居数和压缩的变化行为，并讨论它们对原子初态和光场初态参量的依赖关系。

This effect is probably related to the interaction between amorphous PE in PP copolymer and PE phase in mPE and EPDM. T〓 of mPE decreases with increasing the octene content, and maximum damping of the glass transition relaxation increases.

PP／SEBS共混物中SEBS的玻璃化温度随SEBS含量的增加而降低，表明共聚PP中的PE相对SEBS中丁二烯嵌段的玻璃化松弛转变影响很小。mPE中的辛烯含量越高，其低温损耗峰的强度越高，玻璃化温度越低，低温韧性越好。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。