退化情况

Several common degradation phenomena were summarized from some recent typical research work on the reliability of low-temperature processed poly-silicon thin film transistors, which includes self-heating, hot carriers and negative gate bias temperature instability. Degradation mechanisms and models are presented as well as conclusions of their influences on various device parameters and typical stress conditions.

结合近几年来国际上对于低温多晶硅薄膜晶体管器件可命性开展的一些有代表性的研究工作，对其中几种常见的退化现象：自加热、热载流子和负偏置温度不稳定性做了分析和归纳，介绍了其退化机制及退化模型，并总结了它们在一般情况下对器件性能的影响及各自的典型应力条件。

Finally we study universal unfoldings correspondingto normal forms for the degenerate bifurcations of codimension two,codimension threeand codimension four.

最后研究了余维2退化、余维3退化和余维4退化分岔情况下相应规范形的普适开折。

The assessment formula for shear capacity was established as well, and in which various impact factors of shear strength was considered comprehensively.3. Directed against the main forms of transverse connection in concrete beam bridges, model test and finite element analysis were carried out to find the impact laws of damage on concrete T-beam bridges, in which the three ways of hinged joint, flange rigid connection and cross slab rigid connection were considered. Transverse distribution and degenerate state of transverse connection were studied under various damage conditions. Based on the analysis of test and simulation results, the rule of live load adjustment coefficient of T-beam bridge was put forward, as well as the calculation formula.4. In view of the influence of the damaged transverse connections to load effect, the load effect model was amended by live load adjustment coefficient.

依据损伤出现频率与重要性等级，提出典型损伤混凝土梁式桥按体系损伤、构件损伤和材料损伤三个层次进行评定的原则。2、基于构件和材料层次损伤评估研究成果，对比分析损伤机理和适用条件，提出了《公路钢筋混凝土及预应力混凝土桥涵设计规范》(JTG D62-2004)抗弯承载力修正计算公式、抗剪承载力修正计算公式以及综合考虑抗剪强度影响因素的抗剪承载力评定公式。3、针对混凝土梁式桥主要横向连接形式，分别按铰结、翼缘刚接和横隔梁刚性连接损伤对T桥梁桥承载能力的影响进行了模型试验和有限元分析，研究了不同损伤工况对T梁桥荷载横向分配的影响及横向连接状态退化情况。

In some genera the pedicelled spikelet is much reduced, and in extreme cases its pedicel is reduced to a vestige or fused to the adjacent internode.

在一些属内，pedicelled小穗非常退化，和在它花梗一形迹或熔化成临近的节间的退化至的极端的情况。

In the third chapter, because there are theories about the systems without being generate and delay when they are of restricted state right endpoint, and thus based on that, the optimal control problems of the generate systems with delay with restricted state right endpoint is considered in the chapter.

第三章，由于在讨论不具有退化时滞的常微分系统的最优控制问题时候常常会涉及到右端受到限制的情形，由此推广到讨论退化时滞微分系统在右端受限的情况时候的最优控制问题，在本章里就对这样的最优控制问题进行了讨论，得出了一些重要结论。

And responses under the principal parametric resonance,superharmonic reso-nance and subharmonic resonance are discussed respectively.

文中分析了几类典型方程在退化情况下的局部稳定性，同时研究了一类较广泛的周期参数激励与外激励共存的系统在各种不同情况下的共振响应及其分叉行为，并用奇异性理论进行了分析，绘出了系统的分叉响应曲线。

Trivial Solution conception is put forwarded based on the theorem of K〓nig and forbidden node----for the n×n 0-1 degeneracy matrix, the solution under the condition that all element 1 can not be covered completely by n lines that must have intersects or can be covered completely by n lines that must have cross, without forbidden node, are called TS matrix.

本文在K〓nig定理和禁点定理的基础上，提出了平凡解的概念，即对于n×n阶的退化矩阵，全部1元素不可能被n条有交叉的直线全部覆盖或能用n条直线覆盖全部1元素，但无禁点的情况称为平凡解。并证明了如下的平凡解产生的充分必要条件：对退化矩阵A〓，若

The phosphate degradation was studied when Fused Magnesium Phosphate, Single-super Phosphate and Partially Acidulated Phosphate Rock were applied in two kinds of soils.

对钙镁磷肥、过磷酸钙和部分酸化磷肥在河南郑州西岗沙土和河南西华县潮土中的退化情况进行了研究。

It has been experimentally observed in many engineering materials such as in the clay that a shear band of intense plastic deformation caused by strain softening possesses a finite width.

对饱和多孔介质(也能作为退化情况用于固体材料)提出了一个归结为线性互补问题求解过程的梯度塑性连续体有限元-无网格耦合方法。

The overall aim of the neural stem cell lab is to understand, at a molecular and cellular level, how endogenous mammalian neural stem cells are generated during development, and how their actions are regulated in the adult CNS, both under normal conditions and following disease or degeneration.

该神经干细胞实验室的总体目标是针对正常条件下和疾病或退化情况下，在分子和细胞水平阐述内源性哺乳动物神经干细胞在发育过程中的产生，以及这些神经干细胞在成人中枢神经系统中活动的调控。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。