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The influence of the stiffness of the gravity abutment on the stress of the arch dam is also analyzed.
接着分析了抗剪强度参数的选择及渗透压力对可靠指标的影响，并讨论了随机变量的分布类型、截尾情况以及相关关系对可靠指标的影响。
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In this paper, cross ratios of the four collinear points and five coplanar points were analyzed first, then some affecting factors were concluded, and some constraints were proposed on constructing model-based object recognition system.
首先对共线4点和共面5点构成的交比不变量的稳定性进行了分析，得出了影响稳定性的因素，然后提出在构造目标识别系统的模型时应注意的约束条件，实验表明：在这些条件下构造模型的抗噪声能力大大提高。
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A closed calculation form of the curvature is given based on the theory of matrix.(7)A case study of high slope reinforcement is presented. The whole process of the uplift test and the computer simulation of cable are expatiated. The excavation of the slope with or without reinforcement is simulated by numerical method.
利用矩阵理论给出了求解曲率的简化算式，提出了一种相关变量可靠度计算的实用二次二阶矩法；(7)借助某高边坡支护工程，详述了锚索极限抗拔试验和数值模拟。
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Ecause the method can track satisfactorily all types of state of a class of uncertain variable structure systems, it can extend the nonlinear state error feedback control law and auto disturbance rejection controller application field.
该方法能有效跟踪变结构非线性系统的各阶状态变量，拓宽了非线性状态误差反馈控制器和自抗扰控制器的应用范围，同时给予了稳定性证明。
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Combining with the National Natural Science Foundation ofChina(No.50478032), following researches were done in this thesis: 1 The variation regularity of the ultimate anti-bending capacity of therectangular-sectioned beam with different corrosion has been obtained through thequalitative analysis of 48 beams (32 corroded beams and 12 comparing beams) withaccelerated corrosion; 2 The conclusion has been obtained that the strain of corroded steel bar andconcrete no longer fit in with the assumption of plane section through the analysis ofthe strain data, the strain relation of steel bar and concrete in the mid-span section ofvariously corroded beams at ultimate has been obtained. Through the building of newgeometric relation, the expression of the height of compressive area in the corrodedbeam with rectangular section has been deduced, and the formula with corrosion rateas the main variable for the anti-bending capacity of the corroded concrete beam hasbeen suggested and verified by experiment.; 3 The influence of steel bar corrosion and the concrete regression to the flexureductility coefficient of the corroded structure component has been analyzed. Based onthe relation of steel bar and concrete at yield and ultimate, the expression for theflexure at yield and ultimate of corroded reinforced concrete beam, and the model forthe calculation of the flexure ductility has been built.
本文结合国家自然科学基金项目(50478032)"既有钢筋混凝土桥梁时变可靠度研究"，主要进行了以下研究工作： 1通过对48根快速锈蚀钢筋混凝土矩形截面梁(32根锈蚀梁和12根对比试验梁)数据的定性分析，得到了不同锈蚀率下，锈蚀钢筋混凝土矩形截面梁极限抗弯承载力的变化规律； 2通过对应变数据的分析，论证了锈蚀构件钢筋和混凝土的应变不再符合平截面假定的结论，并通过回归分析得出了不同锈蚀率的螺纹钢筋梁和光圆钢筋梁在极限弯矩作用下，跨中截面处钢筋应变和钢筋处混凝土应变的关系，通过构造新的几何关系，得出了锈蚀钢筋混凝土矩形截面梁计算受压区高度的表达式，既而得出了以锈蚀率为主要变量的锈蚀钢筋混凝土矩形截面梁的正截面抗弯计算建议公式，并通过试验数据加以验证； 3分析了钢筋锈蚀和混凝土劣化对锈蚀构件曲率延性系数的影响，结合钢筋屈服和极限弯矩两种状态下钢筋和混凝土的应变关系，分别得到了锈蚀钢筋混凝土矩形截面梁屈服曲率和极限曲率的计算表达式；既而推导出曲率延性系数的计算模型。
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In the analysis of stability of rock mass slope, the resistance to shearing of slipping plane of rock mass slope, one of the most important parameters, is very difficult to determine.
基于岩体抗剪强度是多种因素影响下的随机变量这一认识前提下，本文以西柏坡"中共中央解放军总部"旧址滑坡为例提出了确定岩体斜坡滑动面抗剪强度的动态反分析方法，并对该方法获得的抗剪强度的实用性进行了分析。
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Based on the basic reliability computation, established the relationship between the load effect and basic stochastic variable dealing with statistical features of variables,and then established the state equation of limit.
基于可靠度基本理论，考虑变量的随机特性，建立荷载效应与基本随机变量之间的关系，建立极限状态方程，在此基础上进行拱坝的拱座—重力墩的抗滑稳定可靠度分析，计算其可靠指标β。
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Then the time-dependent resistance models of the timber beam and timber column are calculated in which the empirical formula in China is used for above- ground,exposed timber beam and column and the decay depth model for under-ground timber in Australia is adepted the timber embedding wall.
然后据此推导了彩钢活动房各类构件的腐朽抗力衰减模型，采用国内经验公式推导了抗弯腐朽木梁和地面上木柱的随机时变抗力模型；采用澳大利亚的地下木材的腐朽深度—时间模型，推导了初始抗力为正态分布的随机变量的墙内木柱的随机时变抗压承载力模型，并采用该模型对某历史结构的木梁进行了剩余寿命预测。
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Then the time-dependent resistance models of the timber beam and timber column are calculated in which the empirical formula in China is used for above- ground,exposed timber beam and column and the decay depth model for under-ground timber in Australia is adepted the timber embedding wall.
然后据此推导了各类构件的腐朽抗力衰减模型，采用国内经验公式推导了抗弯腐朽木梁和地面上木柱的随机时变抗力模型；采用澳大利亚的地下木材的腐朽深度—时间模型，推导了初始抗力为正态分布的随机变量的墙内木柱的随机时变抗压承载力模型，并采用该模型对某历史结构的木梁进行了剩余寿命预测。
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The rust time of the moderately resistance plants was visually later than other groups. The infection period of uredia on the moderately resistance plant was shorter than others.
第一典型变量比第二典型变量更有效，第一典型变量大体可以将三类具有不同抗锈性的品种区分开。
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response surface method：响应面法
2)响应面法(Response Surface Method) 响应面法的基本思想是通过近似构造一个具有明确表达形式的多项式来表达隐式功能函数g(X)(一次或二次多项式),其中X是包含所有荷载和抗力的随机变量的一个向量.
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Var Variable：变项;变数
MQBV varactor 变抗器 | Var variable 变项;变数 | variable 变量,可变的
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antiricin：抗蓖麻毒蛋白
抗本地干扰anticlutter | 抗蓖麻毒蛋白antiricin | 抗变量contravariant