物理状态

The effects of shear stress, Reynolds number, wave number on the fluid film stability are analyzed.

结合切应力作用下液膜的流动状态，分析了表面波扰动在初发时刻的不稳定性，并着重描述引发不稳定性的各种物理原因。

Based on the characteristics above, this paper presents two graph-theory algorithms fast identifying the weakness of networks according to wide area measurement information such as pre-fault network topology and load flow, namely the algorithm of fast search for transmission section based graph theory and the algorithm of fast search for flow transferring Minimal Short Path.

基于潮流转移的上述特点，本文根据事故前的网络拓扑结构、潮流分布状态、输电元件物理参数与系统电压等级等广域测量信息，针对两种不同的网络结构分别提出了相应的快速识别网络薄弱环节的图论方法，即输电断面快速搜索算法与潮流转移最短路径快速搜索算法。

Application and development of platelet transpiration cooling technology in LRE;2. The Computation and Analysis of Heat Transfer of Platelet Cooled Microchannel on the High Temperature and High Pressure Gas Wall;3. Physical-mathematic model is built for the process of evaporation and combustion of the two interactive arbitrary size semisphere pearly transpiration droplets in platelet hole structure under micro-gravity condition.

针对微重力条件下层板孔隙结构中两个相邻任意尺寸半球形珠状发汗的蒸发与燃烧过程，建立了相应的数学物理模型；在双球坐标系中求解分子扩散传质偏微分方程，得到发汗液珠的分子扩散组分分布的解析解和扩散速率表达式；分析得到在常温、高温条件下蒸发以及燃烧状态下发汗液珠的相互作用因子式，计算了相互作用的发汗液珠在不同条件下的发汗蒸发量以及变化趋势。

When the sojourn time of deteriorating state, inspection interval and maintenance time are the stochastic variables which follow the general distribution, the phase-type approach is proposed to preserve the analytical tractability of the transition probability matrix. To solve the problem that the PH distribution changes the state space of system, the value iteration algorithm for the semi-Markov decision process is improved to get the optimal inspection and maintenance policy.

针对模型中劣化阶段停留时间满足一般分布的情况，提出了一类基于位相型分布拟合的近似处理方法，将物理意义上的状态进行概率扩展，简化了维修决策的求解过程，并给出了对应的改进迭代算法，同时从理论上证明了该算法的收敛性。

To study the staggered change of picture of premonitory in chinese mainland by scanning the whole space-time and arranging systemically since 1980, the state of strong earthquake being active and quietude,but what is the most important thing is the correlativity between the staggered change and the character of strong earthquakes.

通过全时空扫描，系统的整理、研究了1980年以来大陆地区地球物理场观测资料的阶段性转折变化，中国大陆强地震活动状态所表现出来的活跃、平静性发生的时段特征以及二者之间的相关关系。

The comparison of results from mathematical model and physical model in vacuum tank for simulation of transient in air cushion surge chamber shows that the similarity laws of various quantities in model test may have influences on the dissimilarity of test results.

本文对比了含气垫式调压室的引水系统，数学模型计算和减压模型试验结果，分析了各种减压模型相似因素对试验结果的影响，认为引水系统管道内含气量、模型的缩尺效应、气室内空气的状态变化以及减压试验条件等的相似性都会造成物理模型试验结果的误差。

There is a positive relationship between the degree of knowledge tacitness and transfer cost; there is a negative relationship between the degree of knowledge overlap and transfer cost; there is a positive relationship between the degree of physics distance and transfer cost, but the relationship is not that significant; there is a positive relationship between the hierachical distance and transfer cost; there is a negative relationship between the trust and transfer cost.

结论如下：首先，从知识情境来说，知识隐含性与知识转移成本成正相关关系；其次，在相关情境重，部门差距与知识转移成本的正相关关系这一假设未能通过验证，知识重叠性与知识转移成本成负相关关系；知识转移双方物理距离与知识转移成本成正相关关系，但显著性处于临界状态，不能完全支持假设；职位距离与知识转移成本成正相关关系；在接收者情境中，基于能力的信任和基于善心的信任与知识转移成本成负相关关系。

According to the effective field expression, the phenomenon that the tangential component of magnetic leakage field has maximum value and the normal component of magnetic leakage field acquires zero value at the stress concentration zone of positive magnetostriction ferromagnetic materials is explained theoretically.

它的物理基础是，铁磁性工件在运行时，受工作载荷和地球磁场的共同作用，在应力和变形集中区域内会发生具有磁致伸缩性质的磁畴组织定向和不可逆的重新取向，而且这种磁状态的不可逆变化在工作载荷消除后不仅会保留，还与最大作用应力

In this paper, nanopowders of rare earth oxides and tungsten were prepared and 0-3 type nano-composit rare earth tungsten thermionic emission materials were fabricated with novel technics. The raw material selection, preparation technic parameter, structure, physical and chemical characteristic, the rare earth distribution and the emission behavior were studied. The influence between the active layer and the thermionic emission performance, rare earth elements diffusion and distribution along depth were investigated in detail. The surplus RE formation and the electron transfer were discussed in theoretically. The thermionic emission current density of the single surplus RE on the active layer was educed. We adopted "liquid-liquid mixing, freeze-drying and two stage-reduction" working step firstly to produce the RE-W nanopowders including La-W powder, Ce-W powder and Y-W powder.

本文采用细化显微组织的新工艺，制备了纳米稀土钨粉末和0-3型纳米复合稀土钨热电子发射材料，探讨研究其原料选择、制备工艺及参数、结构特征、物理和化学特性、稀土分布均匀性、以及热电子发射特性；系统研究了稀土元素的高温扩散情况、高温状态下活性层中稀土的纵向深度分布、以及表面活性物质和活性层厚度对热发射性能的作用；从理论上分析阐释了超额稀土的形成及其电子的传递过程；并从理论上推导了活性层中单个超额稀土的热电子发射电流密度。

However, the transmission lines among the shortest path from one node of the overloaded line to the other, might suffer from flow transferring most greatly after the overloaded line tripping for a "strong-receiver" system, in which generations and loads are distributed equably and generation capacity in load centre is large.

基于潮流转移的上述特点，本文根据事故前的网络拓扑结构、潮流分布状态、输电元件物理参数与系统电压等级等广域测量信息，针对两种不同的网络结构分别提出了相应的快速识别网络薄弱环节的图论方法，即输电断面快速搜索算法与潮流转移最短路径快速搜索算法。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。