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The pyrolysis mechanism of nitrogen element in pyridazine as a model compound of coal was investigated by density functional theory method. The Mülliken populations, bond dissociation enthalpies and pyrolysis mechanism of title compound were calculated under theB3LYP/6-31G level.

利用密度泛函理论方法，以哒嗪为煤的模型化合物，在B3LYP/6-31G水平下计算了标题化合物的键布居数和键裂解能，并对其热解机理进行了探讨。

2 Is a good model for studying dissociation and reassociation during unfolding and refolding.

肌酸激酶是研究蛋白质去折叠和再折叠过程中解聚和再聚合的模型蛋白之一。

A detail comparison demonstrates that such preconditioned IbpB is distinguished from the non-preconditioned IbpB by a remarkable conformational transformation, including a significant increase in the flexibility of the N- and C-terminal regions, as well as enhanced dynamic subunit dissociation/reassociation.

我们的比较研究表明，这样的经过热休克预处理过的 IbpB蛋白与未经历过热休克条件的蛋白之间存在很大的构象上的差异，包括前者在N-和C-末端区域可曲性的明显增强，以及亚基动态分离/重结合的加强。

When we got the glaze formation reactions mainly dissociation and sanukite ethynylation, we'll be made aware of the difference of the same color.

当我们把持了釉形不败历程洋化学不正答次给是离解和玻化不正答之后，我们不离能从洋获知统一色彩的不对别之别。

Superexcited states of NO molecule and their neutral dissociation processes have been studied both experimentally and theoretically.

本文从实验和理论两方面研究了超激发态NO分子的中性解离过程。

Intense laser pulse causes neutral dissociation of superexcited NO molecule by way of multiphoton excitation, which is equivalent to single photon excitation in the extreme-ultraviolet region by synchrotron radiation.

由此证实和同步辐射导致的单光子激发一样，强激光导致的多光子激发同样可以引起NO分子的超激发，并且随后发生中性解离。

The basic conceptions, including adiabatic ionization energy, vertical ionization energy, superexcited states, photoionization cross section, Rydberg state of atomic and molecular, dissociation and predissociation are discussed in detail.

着重讨论了同步辐射真空紫外光在原子分子研究领域中的应用，详细讨论了光与物质相互作用的一些基本概念，包括绝热电离能、垂直电离能、超激发态、光电离截面、原子分子的Rydberg态及离解和预离解的定义及相关的背景知识。

The original theory was based on Svante Arrhenius's electrolytic theory of solutions and involved the dissociation of water into hydrogen and hydroxide ions.

原始理论是根据阿伦尼乌斯的电解质电离理论，定义是酸和碱是在水溶液中能分解出氢离子和氢氧根离子的物质。

Compared with G1 synthesized from 1,2,4,5-benzene tetracarboxylic acid and 4hydroxy pyridine at molar ratio of 1:2,G2 gelled water at higher minimum gelator concentration and gave the gel with lower gel-to-sol dissociation temperature at the same concentration.

相对于在摩尔比1：2条件下，由均苯四甲酸和对羟基吡啶合成的凝胶因子G1，在相同浓度下，G2在更高的最低凝胶因子浓度使水凝胶，并且得到的凝胶具有更低的凝胶-溶胶破坏温度。

A Photolysis of 5＇-deoxyadenosylcobalamin in neutral aqueous solution and methylcobalamin in neutral and acid aqueous solution has been investigated using pulsed, time-resolved photoacoustic calorimetry in the temperature range of 10-30℃. The resultant enthalpy changes, namely CoC bond dissociation energies for the above cobalamins, 129±17, 163±21 and 176±23kJ/mol, respectively, are consistent with the values obtained by thermolytic kinetic method.

运用光声量热法研究10～30°C温度范围内辅酶〓在中性水溶液中和甲基钴胺素在酸性和中性水溶液中的光解反应，测定了其光解反应的焓变，即Co—C键离解能分别为129±17，163±21和176±23 kJ／mol，这些值和文献中用热分解动力学方法测得的值一致。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。