be damaged
- be damaged的基本解释
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破
- 相似词
- 更多 网络例句 与be damaged相关的网络例句 [注:此内容来源于网络,仅供参考]
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First, this paper presents three girders model with double cable planes which main girder and side girder is connected by rigid arms, analyzes the dynamic characteristic of Yonghe cable-stayed bridge and obtains its natural vibration modes (i.e., frequency, damping values and the mode shapes ) by ANLSIS structural analysis program and uses these parameters as dynamic dactylogram of the intact case of cable-stayed bridge. Using the passage of random as the ambient vibration ,the dynamic properties of Yonghe Bridge is measured and the modal parameter of its 15 years after is identified and used as dynamic dactylogram of the damaged case. By the finite element analysis and locale vibration test, damaged and undamaged modal parameter is analyzed and curvature mode shape, which is sensitive to damage state, is introduced as possible candidate for identifying and locating damage in the cable-stayed bridge. Selecting the branch of part measured point from modal parameter, this paper deduces the damaged index which can detect the possible damaged location of the cable-stayed bridge deck and identifies the damaged region and degree for Yonghe Bridge. For the purpose of structural condition monitoring in in-situ , from another viewpoint, this paper introduces the method called the best optimization vector to detect damaged location and degree. The accuracy and reliability of the method presented in this paper are demonstrated by static analysis and test and the healthy state of Yonghe Bridge can be evaluated.
建立了双索面通过刚臂与主梁及边梁相连的三梁式力学模型,采用ANSYS结构分析程序对永和斜拉桥进行动力分析,对其振动模态参数进行识别,以此作为斜拉桥完好状态下的动力&指纹&;采用自由交通流作为环境振源,对永和斜拉桥动力特性进行测试,识别出永和斜拉桥使用15年后的模态参数,确立了破损状态下的动力&指纹&;利用有限元分析、现场振动测试,对破损前后的模态参数进行分析,提取对破损状况较敏感的模态曲率作为斜拉桥破损诊断的参数;并从模态参数中选取部分点的分量,导出可以指示斜拉桥桥面大概损伤位置的Index损伤指标,识别出斜拉桥发生破损的区段及破损程度;考虑大型斜拉桥在线监测要求识别破损的具体位置,从另一角度提出采用最优矢量法具体确定破损发生的位置及程度;为验证本文研究成果,对永和斜拉桥进行静力分析及静力测试,对其健康状况提出可靠的评价。
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Kangdai Ⅰ has protective function to the damaged neurons and astrocytes: Main results:(1) It has direct protective function to the damaged neurons. It can increase the activity and survival rate, decrease the mortality and the transudation rate of LDH in cultured medium and the strong positive cell count of NOS expression of injured neurons.(2) It has also directly protective function to the damaged astrocytes. It can increase the activity and survival rate and protein content in conditioned medium.(3) It can strengthen the ability of BDNF, GDNF, bFGF, HSP and IL-6expression in damaged astrocytes.(4) It can also strengthen obviously the expressions of NSE, bFGF-receptor and bc1-2, lower the expression of bax and caspase-3.(5) It can indirectly protect and restore the damaged neurons by astrocytes. Because the effect of ACMK (ACM interfered by Kangdai Ⅰ) is stronger than ACM+K (ACM associated with Kangdai Ⅰ).
抗呆Ⅰ号对受损的神经元和星形胶质细胞均具有保护作用:主要表现为:(1)对受损神经元具有直接的保护作用,可提高受损神经元的活性和存活率,降低细胞培养液LDH的漏出率、细胞死亡率和NOS染色强阳性细胞的表达量;(2)对受损的星形胶质细胞也有直接的保护作用,可提高其活性、存活率以及培养液蛋白质的含量;(3)能增强受损星形胶质细胞分泌BDNF、GDNF、bFGF、HSP和IL-6的能力;(4)可明显增强受损神经元对NSE、bFGF的受体和bc1-2的表达,降低受损神经元对bax和caspase-3的表达;(5)抗呆Ⅰ号可通过星形胶质细胞间接地保护和修复受损的神经元,因为在多数实验组中经抗呆Ⅰ号作用的ACM的作用远大于ACM与抗呆Ⅰ号联合应用的作用,统计学上具有显著性差异。
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Two merging methods of Bézier curves are generalized to tensor product Bé zier surfaces, we propose two methods to approximate two pieces of adjacent tensor product Bézier surfaces by a piece of tensor product Bézier surface. We offer the explicit formulas of the merged tensor product Bézier surfaces with all kinds of merging conditions.
同样,Bézier曲线的两种合并方法也被成功的推广到张量积Bézier曲面上,得到把两片相邻张量积Bézier曲面合并成一片张量积Bézier曲面的两种合并方法,并给出在各种合并条件下的合并曲面控制顶点的显示表示式。
- 更多网络解释 与be damaged相关的网络解释 [注:此内容来源于网络,仅供参考]
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damaged ballistic galvanometer:阻尼冲击检流计
damaged alternating current | 减幅交流 | damaged ballistic galvanometer | 阻尼冲击检流计 | damaged conductor | 受损导线
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damaged beyond repair:损坏难修
damaged bank note 破损银行券 | damaged beyond repair 损坏难修 | damaged cargo report 受损货物报告书
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damaged goods:破损货物
damaged condition 损坏状态 | damaged goods 破损货物 | damaged goods 受损货物