破坏能力

Based on the previous research on the portal crane administration, one standpoint put forward in this paper is idea that is on the foundation of reliability in this paper, two viewpoints take shape when reason is analyzed, that is fatigue break and appearing the flaw that will extend. What is the fatigue break?(this phenomenon is always happen in some place),the fatigue is that board appears apophysis and concave when the board is pressed .so that the board ability of bearing the weight of load will descend. Second , the board appear the flaw that the flaw extends in the some place of board one reason is that the machine works too long, so the board ability of bearing the weight of load will decline.

本论文建立在已有的港口装卸机械管理的研究基础之上，进一步提出了以可靠性为基础的港口装卸机械的管理思想，已有的研究表明，港口机械设备破坏主要由于两个原因，第一是稳定性问题，特别是构件的局部稳定性，所谓稳定性是指：在板的平面内，板受到平行于板面的压力作用，使板发生隆起、内陷等凹凸不平的结果，从而使板受载能力减弱；第二是结构出现疲劳裂纹及其扩展，这是由于设备长时期运行，而造成设备某些部位出现裂纹并得以扩展，使设备承载能力下降。

But too much anxiety will destroy graduates' psychological balance and endanger their mental and physical health, leading to their cowardice, escape, fear, even insomnia and mental blahs, etc., which definitely will decrease their abilities of judgment and self-restraint.

以往研究发现，在择业期间，一定程度的焦虑可以激发毕业生择业的动机，增强毕业生主动参与就业竞争的积极性，有利于毕业生顺利就业，但过度的焦虑则会破坏毕业生的心理平衡，危害毕业生的身心健康，在择业时产生退缩、逃避、艮惧，甚至失眠、精神抑郁等行为和心理病症，会使毕业生失去应有的判断能力和自制能力，直接影响择业的过程和结果。

The results indicated that the strength of corner joints increased with the increase, of thickness, density, moisture content, MOR and IB of the board, and that the measure of coefficient of variability for MOR and IB of the board would play a more important role in the stability and strength of corner Structure in furniture.

本试验中，以木质圆榫不可拆连接角结构抗变形强度和偏心凸轮连接角结构抗破坏变形强度为最高，试验的综合结果表明，可拆型连接的角结构强度总是低于不可拆型连接的角结构；角结构承受拉载的能力明显低于承受压载的能力。

1Niche construction can lead to stable coexistence of diverse genotypes in spatially structured population, which supports a stable polymorphism even without heterozygote superiority.(2)With habitat deterioration, niche construction accelerates the formation of steady polymorphism and hence impedes the harmful influences of environment on the population, which might embody a life-history strategy of organism under the unfavorable environment.(3)Niche construction results in the coexistence with alternative polymorphism through genotype-environment feedback and limited gene flow.(4)The niche-constructing organism is an active force to alter its environment and hence the direction of natural selection in order to better survival.(5)Spatial dynamics and distribution pattern of metapopulation are profoundly influenced by time-lagged niche construction.(6)Metapopulation size can reach a fixed level in the recency effect and equal weighting of time lag but is statistical stability in primacy effect, which implies the primacy effect is most remarkable.(7)The increment in the relative weightingof each generation\' niche construction and the length of time lag are significant factors for system destabilization.(8)Moderate capacity of positive niche construction benefits the metapopulation persistence.(9)The narrowing of niche breadth can decrease the metapopulation size and thereby increase the extinction risk.(10)The coupled function of time lag and niche construction make the system oscillation and generate the spiral wave, spiral-broken and circular wave in heterogeneous habitat.The spatial distributions of metapopulation and resource content are complementary due to a phase lag of their both frequencies.(12)Metapopulation persistence with niche construction depends not only on the balance between colonization and extinction, but also on the balance between the ability of niche construction and natural dissipation of habitat.(13)Metapopula-tion can survive under certain condition when the percent of suitable patches in habitat is lower than the ration of extinction to colonization.(14)Two thresholds exist in the process of transition of habitat quality dynamics from unsuitable to suitable, which include the intensity of niche construction and the initial condition of system.(15)Metapopulation size is positive correlated with the ability of positive niche construction, which means that organism or population who has strongly positive influences on their environment plays an important role to maintain the available habitat.

通过上述几个方面的研究，主要得出以下15条结论：(1)生态位构建可使空间结构种群，甚至是在没有杂合子优势的条件下，形成多种可能的稳定基因型分布模式；(2)随着环境的破坏与恶化，种群的生态位构建作用加速其较早形成稳定多态以阻碍环境对种群的不利影响，解释了有机体在不利环境下的一种生活史对策；(3)生态位构建作用通过基因型—环境反馈机制及有限的基因交流导致基因型多态的稳定共存；(4)有机体的生态位构建作用是一种积极的动力改变环境进而改变其自然选择的方向；(5)生态位构建的时滞作用对集合种群动态和空间分布产生深刻影响；(6)集合种群大小在时滞的崭新效应和等权重效应下达到一固定值，而在首位效应下达到统计稳定，表明首位效应的影响最显著；(7)首位效应下生态位构建相对权重的增量和时滞的长度是影响系统不稳定性动态的关键因素；(8)适中的生态位构建强度有利于集合种群的续存；(9)生态位宽度变窄会减少集合种群的数量从而增加其灭绝风险；(10)时滞和生态位构建的双重作用使系统产生周期振荡，并在异质性环境中产生稳定的螺旋波，破碎的螺旋波和环形波三种分布模式；(11)集合种群与资源含量的空间分布因为相滞而互补；(12)具有生态位构建的集合种群续存不仅取决于侵占率与灭绝率之间的平衡，而且依赖于生态位构建能力同其生境的自然消耗速率之间的妥协；(13)当生境中适合侵占的斑块比例小于其侵占率与灭绝率之比时，生态位构建作用促使集合种群在一定条件下续存：(14)生境斑块的状态从不适合到适合转变过程中存在生态位构建强度和系统初始条件这两个阈值；(15)集合种群的大小同正生态位构建能力正相关，意味着对环境具有较强正作用的有机体对维持有效生境起积极作用。

Analysis indicated that link of this frame yielded in the last loading and occurred cut mode failure and insure that the other components did not failed. So enhance the absorbs seismic energy and distortion capability,improved the resistant seismic behavior of frames.

分析结果表明，V型偏心支撑的耗能梁段在加载后期发生剪切屈服型破坏，保证了钢框架其它杆件仍处于弹性，提高了结构的耗能能力和变形能力，显著地改善了钢框架的抗震性能。

With the ability to damage buildings, streets, cars and anything else the Hulk can get his hands on, you have the ability to make New York City your own destructible playground.

的能力，损害建筑物，街道，汽车以及其他任何的绿巨人可以得到他的手，你有能力使纽约市自己的破坏游乐场。

Based on the destructive test of certain old pre-stressed concrete hollow slab after structural strengthening by CFS,the destructive mechanism and ultimate bearing capacity of old pre-stressed hollow slab after structural strengthening is being researched,which is useful for the strengthening design of old bridge and solvating of single slab problem.

通过某已使用10年的旧桥预应力混凝土空心板受拉区碳纤维布加固后的破坏荷载试验研究，对受拉区加固后的旧桥预应力混凝土空心板的破坏机理、变形性能及极限承载能力等进行了研究，为旧桥预应力混凝土空心板的加固设计及单板受力问题的分析解决提供了试验依据。

Also, triple-line skeleton curve was obtained, which provide base for analyzing this kind of shear walls.

其次通7片纵横配筋的高强砌块配筋砌体高悬臂剪力墙的恢复力试验，考查了竖向荷载、剪跨比、水平配筋对该种剪力墙破坏形态的影响，以及该种墙片的强度、刚度、延性性能及能量耗散能力，并且与钢筋混凝土剪力墙相比较，得出配筋砌体剪力墙抗剪时与钢筋混凝土剪力墙的破坏形态、延性等相近的结论，由试验得出的骨架三折线，也为今后分析该种墙体的抗震性能提供了依据。

On the basis of the former researches and taking into account the practice of our country, this paper take the low period repeat loading experiment for three rigid conjunction node of steel beam and concrete wall, researching their load-bearing capacity and earthquake resistance performance under the low period repeat loading action, the main content concentrate on the following aspects:(1) Analyzing the three joint's damage shape、hysteretic curve、change of rigidity、yielding load、limit load、damage load、durability、energy dissipation capacity、the strain of the key position and the moment transferring mechanism.(2) Comparing the joint's load-bearing capacity and earthquake resistance performance among the joints with different stud bolt diameter and different connection plate thickness, researching some factor's influence on the work performance of the joint such as the high and strong stud bolt specification、connection plate thickness .

本文在前人研究的基础上，结合我国的实际情况，对3个钢梁-混凝土墙刚接节点试件进行了低周反复荷载试验，对其在低周反复荷载作用下的承载力和抗震性能进行了研究，内容主要集中在以下几个方面：(1)对3个节点试件在低周反复荷载作用下的破坏形态、滞回曲线特性、刚度变化、屈服荷载、极限荷载、破坏荷载、延性性能、耗能能力、关键部位的应变分布情况及节点核心区的受力情况进行了试验研究和理论分析；(2)比较了不同螺栓规格和不同连接板厚度的节点试件的承载力和抗震性能，研究了高强螺栓规格和连接板厚度这2个因素对节点工作性能的影响；(3)介绍了光纤光栅传感技术在土木工程领域中的应用研究现状及其基本原理；并通过对比试验，探讨了光纤光栅传感器用于土木工程检测的可行性及实现途径。

Therefore, its essence is damaging creature diversity, which leads to the system loss of self-maintenance, self-accommodation ability and system balance stability, finally results in the destruction of water eco-system and farther intensification of environmental issues.

其本质问题是水生生物多样性的破坏，由此造成系统丧失自我维持、自我调节的能力与系统平衡的稳定性，并最终导致水生生态系统的破坏和环境问题的进一步加剧。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失