结构破坏

The reactions and transformation have resulted in a great volume increase and thus destroyed the structure,weakened the strength and corrosion resistance of the materials.

这一系列反应使试样产生很大的体积膨胀，从而破坏了制品结构。因此，与镁炭砖不同，Al和Si不但不能增强镁锆炭砖，而且使其结构破坏和耐侵蚀性降低。

With the results which include performance point , shear force-displacement , distribution of the plastic hinges and so on, and has carried on the comparison with the elastic response spectrum method and the time-history method . An appraisal has been made after considering the structure earthquake resistance performance.

分析结果包括结构在小震和强震下的性能点和顶点位移，底部剪力-顶部位移，结构破坏时塑性铰的分布等，并与弹性反应谱法和动力时程分析的结果进行了比较，利用分析结果对结构的抗震性能做出了评估。

For example, dissemination in the geological material and function to the underground structure by blasting earthquake wave often cause the structure damage in varying degree, even appears serious consequence of the structure disarrangement .

爆破公害对环境的影响日显突出，如爆破地震波在地质材料中的传播及对地下结构的作用，往往引起结构不同程度的损伤，甚至出现结构破坏的严重后果，引发各种民事纠纷，阻碍了爆破事业的发展。

There are two stages in the collapse of CaSiO_3 perovskite under decompression: the breakage of SiO_6 octahedron and the breakage of CaO_(12) icosahedron.

钙钛矿型CaSiO_3解压缩成非晶态时，存在两个结构破坏阶段：破坏硅氧八面体和破坏钙氧二十面体。

To investigate the effect of p38MAPK signal conducting pathway on livercancinoma cell's malignant phenotype induced by VEGF,we take theexperiment with cell growth test,scanning microscope and laser scanningconfocal microscope so that observe effect of p38MAPK signal conductingpathway on liver cancinoma cell growth,pseudopodium formation andframework of cytoskeleton induced by VEGF.results indicate that the cellbecame ellipse and there were more and thick pseudopodium in the cell'ssurface after being treated by VEGF,and destroyed framework ofcytoskeleton,which can be blocked by pretreated with a special inhibitor ofp38MAPK SB203580 so that VEGF promote metastasis by enhancing livercell migration and movement via p38MAPK signal conducting pathway,butVEGF promote cell growth without p38MAPK signal conducting pathway.

为进一步探讨VEGF通过p38信号传导通路诱导肝癌细胞转移时，对肝癌细胞恶性表型的影响，采用细胞增殖实验、扫描电子显微镜、激光扫描共聚焦显微镜观察VEGF对肝癌细胞增殖作用、细胞伪足形成、细胞骨架微丝结构的影响以及p38MAPK信号通路调控作用。结果显示，VEGF能够不通过p38信号通路促进肝癌细胞增殖；VEGF诱导肝癌细胞丝状伪足增多、增长，使细胞骨架微丝结构破坏、甚至消失。阻断p38MAPK信号通路，可以抑制VEGF诱导的肝癌细胞伪足形成，细胞骨架丝状结构呈束状，排列较规整。上述结果表明，VEGF可以通过p38信号传导通路诱导肝癌细胞伪足增多、增长，促使细胞骨架微丝结构破坏，使肝癌细胞迁移、运动能力增加，促进肿瘤转移。VEGF并不通过p38信号通路诱导肝癌细胞增殖作用。

Consequently, the damage of stuck shipside can be decreased. And the new type buffer bow has been developed from the point of arrangement of inner structures of ship bow.

提出了一种高强度钢缓冲船艏，发现船艏结构采用高强度钢在等强度的条件下可以减小船艏结构的压溃载荷和纵向刚度，从而降低对撞击船船侧结构破坏。

Moreover, by adopting a structural damage model with double parameters, the formula for calculating structural earthquake damage probability is given.

进而采用双参数的结构破坏模型，给出了计算结构地震破坏概率的表达式。

Afterwards, the crash process of the thin-walled structure is simulated to find the effect of the cross section, the thickness and the pre-deformation on the crash capacity, and the axial impact deformation of the circinal tube is analyzed in the theoretical way, the axial impact deformation of the square tube and subulate tube are analyzed by simulation.

最后本文建立了原DF_(8B)机车车体正面碰撞刚性墙的仿真模型，在分析碰撞结果后，对原DF_(8B)机车车体的底架和司机室结构进行了改进；并利用薄壁圆管和锥形结构设计了吸能装置，利用凸凹相见的防爬板设计了防爬装置；对安装了吸能装置和做出结构改进的耐碰撞DF_(8B)机车以10m/s和15m/s速度正面撞击刚性墙进行仿真，结果表明碰撞时吸收装置先于车体主结构破坏，吸收碰撞能量，其吸能能力达到了国外有关标准的要求。

Through model test,it analyzes damage mode of adding batten plate under vertical load,strain relation of load with flexibility、load with steel bar and carbon cloth are given,it obtains dangerous section of span beam when researched damage mechanism,which make structure can reach prospective effect.

通过模型试验，对附加缀板式这种新型结构加固后在竖向荷载作用的破坏形式进行了分析，给出了荷载与挠度、荷载与钢筋及碳纤维应变的关系，并对结构破坏机理进行了研究，得出各跨梁的危险截面，使该结构达到了预期的加固效果。

According to the calculated results, the distribute rules of the internal force in tunnel bed and the destruction cause were analyzed. The results show that the bending strength of tunnel bed structure should be strengthened when the tunnel bed is repaired.

根据计算结果，对隧道铺底结构的内力分布规律以及铺底结构破坏的原因等进行分析，并提出在进行隧道铺底病害整治时，应大力提高铺底结构的抗弯能力。

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。