绝热过程

The evolution of frontal rainbands happening during the frontogenesis induced by deformation field is investigated through the numerical cloud model. Besides, in order to get insight from the results of numerical simulations, the semigeostrophic frontogenesis model is used to investigate the effect of diabatic heating on the frontogenesis and the analytical method of WKBJ is used to study the influence of large-scale deformation field and frontal circulation on the development of symmetric disturbance happened in the frontal zone.

为了加深对数值模拟结果的理解，还利用半地转模式对非绝热加热影响锋生的过程进行了讨论，通过WKBJ方法讨论了变形场锋生条件下对称扰动的发展，从中可以了解大尺度变形场和锋生环流对中尺度扰动的作用，这方面的工作可以对前面非静力数值模拟结果的理解提供帮助。

This doctoral dissertation is composed of several parts: At beginning, the frontal structure, the effects of diabatic heating and orography, the dynamics of frontal circulation and the mesoscale systems associated with front are reviewed. Several problems based on the review are brought forward. First, at present, the semigeostrophic frontogenesis theory is the most appropriate basic framework for the general explanation of the frontogenetic process. However, the comparison between semigeostrophic theory and the observation have revealed some inconsistencies. The newly observational facts increase the inconsistencies.

本博士论文主要由如下几部分组成，首先对锋面结构、地形和非绝热加热对锋的影响、锋生环流及锋面附近中尺度系统动力学问题的历史与现状进行了综述，在此基础上提出需要进行研究的若干问题：(1)、半地转锋生理论直到今天仍是解释锋生过程的最合适的理论框架，但是通过与观测事实比较，人们发现半地转理论不能对许多锋面观测特征给出令人满意的回答，新的观测事实使问题更加突出，这就向人们提出：是什么原因导致半地转理论与实际观测的不符？

The alternative approach, with an adiabatic form of humidification, utilizes the excess process heat for evaporation.

另一种方法与形式的绝热加湿，利用多余的蒸发过程中的热量。

The deviation of forecasting brought by the difference of CCP schemes would not increase lineally with integration forward.

结果表明，模式非绝热物理过程可以从两方面影响暴雨预报的不确定性。

Of, relating to, or denoting a reversible thermodynamic process executed at constant entropy and occurring without gain or loss of heat.

绝热的属于，关于或表示在恒定熵状态下完成的可逆热力过程并且无热量之获得或损耗的

The cooling methods that can adiabatically decrease the internal temperature of the ArD_2O,and Multipass cell techniques,they are both used as a major tools in the detection of investigated van der Waals molecular complexes.

同时，做为研究范德瓦尔斯复合物的主要方法，用以减小ArD_2O内部温度的绝热膨胀过程和多程吸收池技术也将有所介绍。

Bekenstein, Hawking, Gibbons and Perry have discussed the case of putting in an isolated box having rigid and adiathermal walls a black hole, which is in equilibrium with radiation under certain circumstances.

本文更广泛地探讨了该体系的热力学特性。从该体系的绝热膨胀过程出发，自然地定义了总熵和黑洞熵。

It is found that when the cocurrent adiabatic absorption is employed in the absorber, the temperature lift is 3～5℃ higher than that of common countflow absorption, and other performances have some improvement.

在实验中发现，吸收塔吸收过程采用并流绝热流程，其温升比传统的逆流吸收方法可提高3～5℃，其它性能也有不同程度的提高。

We study photodissociation dynamics of triatomic molecules in severalcoupled electronic states for total angular momentum quantum number J = 0, andtime-dependent wave packet method with split-operator scheme is presented.

我们研究了总角动量J =0情况下发生在多个非绝热电子态的光解过程，用分裂算符方法给出相应的含时波包理论。

CL which can be detected during tensile testing of unaged polyami-de and UV-irradiated polypropylene specimens, has been found to be an effect of thermally unstable hydroperoxides decomposing due to stress-induced adiabatic heating, which after necking is localised to the travelling neck shoulders.

在对物理尼龙和紫外线照射过的聚丙烯样件的拉伸测试过程中，采用化合光对其进行检测，可以发现一种不稳定的热效应产生的氢分解。这是由于在受拉伸颈部的轴肩局部位置，因应力作用而产生的绝热加热。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。