结构破坏

Largely unstructured in solution, linear peptides fold into an amphipathic helix upon binding and insert into the target membrane, leading to breakdown of the transmembranal potential and of ion gradients, thus causing leakage of cell contents, resulting finally in cell death.

大多数的抗菌胜肽在水溶液中是呈现松散的结构，但和目标微生物作用时会褶叠形成双性螺旋的结构并插入其膜内，导致破坏膜内外的电位及离子梯度，造成细胞的泄漏，最后导致细胞死亡。

To subdivide the finite element analysis, the elastoplastic time travel analysis is done within the range of horizontal structural weak layer under the action of earthquake infrequently, which is feasible to find out the location of structural weak layer and breaking-down mechanism and meanwhile givesreference valuable to the design of high-rise buildings.

采用细化有限元分析方法，根据对结构横向薄弱部位作罕遇地震作用下的弹塑性时程分析，该方法对找出结构薄弱层位置和破坏机制可行，对高层建筑设计具有一定的参考价值。

Results indicated that the variation was significant from treatment to treatment. S-deficiency caused bulging chloroplasts, loosening and dishevelled grana lamella, reducing organelle, and damaged chondriosome in mesophyll cells of the leaves, and empty cells of the roots, while S-excess, however, led to densification, condensation and randomization of grana lamella of the chloroplasts of the leaves, and separation of cytoplasms from walls of the cells of the roots.

结果表明，受S素营养胁迫的水稻，其根系及叶片的超微结构均发生了显著的变化：低S胁迫会造成水稻叶片叶肉细胞内的叶绿体结构肿胀，基粒片层松驰、散乱，细胞器减少，线粒体结构被破坏，根系细胞内几乎没有内含物；S浓度高则会使叶片叶绿体基粒片层致密、浓缩，无规则化，根系细胞发生质壁分离。

The article has a concrete analysis on familiar flaw ,disfiguration and breakage accidents of membrane structures,and brings forward corresponding prevention measures for design,manufacture an.

本文针对膜结构中存在的常见疵病、损伤与破坏事故进行具体分析，并对其设计、制作及安装中的问题提出相应的防治措施，结论可供膜结构工程参考借鉴

The findings indicate that under uniaxial compression, the red sandstones at first experience structural intensification and then structural degradation until they are failed; the unconfined compressive strength of red sandstone is mainly related with compaction rate, pore distribution and connecting condition of mineral grains; and the above factors have a more notable impact on the unconfined compressive strength of red sandstone with the increase of weathering; with the increase of load, the grains area ratio and Euler number decrease, the pore develops towards centralization or collectivization, and the red sandstones gradually lose their resistance to deformation.

研究结果表明：在单轴压缩条件下，红砂岩先结构强化，后结构劣化，直至最终破坏；红砂岩的单轴抗压强度主要与密实程度、微孔洞等缺陷的分布情况及矿物颗粒之间的联结状态有关，随着红砂岩风化程度的增强，以上各因素对其单轴抗压强度的影响将更加显著；伴随荷载的增加，红砂岩的矿物颗粒面积比例及欧拉数总体上趋于减小，孔隙向着集中化和集团化的趋势发展，红砂岩抗变形能力逐步丧失。

Thus far, little has been known for the extreme value distribution of general structural dynamic stochastic responses, except for some special results, say, the Rayleigh distribution in the case of narrow - banded Gaussian stochastic processes.

由于基于首次超越破坏准则的结构动力可靠度问题可以转化为相应动力反应极值分布的积分问题，获取结构动力随机反应的极值分布具有重要的意义川。

Based on the first order shear theory and the Von Karman non-linear assumption , the corresponding finite element formula was developed , and an appropriate progressive failure criterion was adopted.

基于一阶剪切理论和 Von Karman非线性变形假设建立了含分层损伤复合材料 A GS结构的有限元模型，并推导了考虑温度和湿度效应的 AGS结构有限元列式，同时给出了材料破坏准则。

The results reveled that no obvious disruption in the tissue structures of the flavedo and the albedo could be found after the processing by the enzymatic technology developed in this study.

从所摄的照片上看，经本论文确定的酶法工艺处理后，橙子原料中的外果皮和中果皮的组织结构没有受到明显的破坏，而囊瓣结构发生了明显解体，但囊衣的解体程度低于汁胞区的解体程度。

This thesis demonstrates the pre-polymers in a polymer-dispersed cholesteric liquid crystals can be polymerized into a polymer film, which can eliminate the aligning capability of the homogeneous alignment layer. Thereafter, the textures of the cholesteric liquid crystals in UV-cured region can be changed from reflective planar texture to the scattered focal conic one. Additionally, the clearing temperature of the liquid crystals can be reduced by doping with chiral dopant or monomers. The cause is the increase of the impurity concentration in LCs. In other words, if the monomers are polymerized, the clearing temperature of LCs in that region should increase due to the decrease of the impurity concentration. Therefore, impurities associated with doping with monomeric and chiral dopants cause the clearing temperature of LCs in cured region to differ from that in uncured region.

本文中，我们提出在高分子聚合物薄膜之胆固醇液晶(polymer-dispersed cholesteric liquid crystals，简称PDCLCs)中，利用紫外光使PDCLC中的单体聚合成薄膜，此即为光引致聚合反应，而该薄膜将原本在表面所作的配向膜覆盖且破坏其配向能力，使胆固醇液晶由原本反射的planar结构转换成散射的focal conic结构；另外，有关液晶材料的相变温度会由於掺杂手性分子或单体而降低，此因液晶材料内『杂质』浓度增加，而造成的液晶材料之不纯度增加，最终导致相变温度降低，若搭配上述光引致聚合反应，则由於光照区之单体聚合，使该区域单体占总材料之比例下降，即不纯度降低，进而使液晶材料之相变温度上升，该区域之相变温度与未照光区有所不同。

A total of 14 CFRP (carbon fiber reinforced plastics) reinforced EWC beams were tested to failure to investigate the failure modes, failure mechanism and the flexural behaviors of them.

二、进行了14根 CFRP 增强复合木梁的结构性能试验，研究其破坏形态、破坏机理及受弯性能等，并与未增强木梁的试验结果进行对比。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！