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The tensile strength and the elastic modulus were assumed to obey Weibull and logarithmic normal distribution and the other mechanical parameters were taken as constant values in the simulations of three-graded-concrete supported beam. The random aggregate random parameters model was established, which is very close to the actual structure. The results show that the nonlinear behavior of higher homogeneous specimen appears later obviously; the influence of random distribution of elastic modulus on the mechanical character is very little in linear range, while great in nonlinear range; random distribution of tensile strength affects the strength and the damage threshold of concrete obviously.

对三级配混凝土简支梁进行数值模拟时，假定各相材料的抗拉强度和弹性模量服从Weibull、对数正态两种随机分布，其他力学参数取定值，生成和实际结构比较接近的随机骨料随机参数模型，数值模拟结果表明材料均质度较高的试件出现非线性行为的时间要明显滞后于均质度较低的试件；弹性模量分布的随机性对材料线弹性段力学性能的影响极小，而对非线性区域的影响较大；材料强度分布的随机性对混凝土的强度和损伤阈值有较大的影响。

At first, an approximated mathematical model is presented. Then, the system manager can compute the optimal control policy via the method of successive approximation. Based on the above-mentioned algorithm, we design an intelligent system with feedback control to regulate the allocation of limited channels of trunk circuit. This system will continuously detect the status of whole cellular network. Once the system parameters cross the predefined threshold, the recomputing mechanism will be activated.

首先针对系统的近似数学模型先將其定义出来，然后就可以用连续逼近法將最佳控管决策计算出来，这样的最佳决策演算法我们把它设计在一个有迴授机制的智慧型决策系统裹，此决策系统將不断地侦测行动通讯网路运作的情形，一旦网路参数变化超过某个预定的临界值时，整个最佳决策演算法將被启动，系统的近似数学模型將依新的参数重新定义，接下来同样地写出最佳方程式並用连续逼近法计算出新的最佳控管决策。

The probe was tone burst and its frequency was the same as neuronal characteristic frequency . The effects of different maskers on the minimum threshold, response latency, dynamic range and firing rate of the mouse inferior colliculus neurons were observed in the experiment.20 healthy adult mice 20-25 g.

探测声频率为神经元的特征频率(characteristic frequency， CF)，掩蔽声分别为和神经元CF相同的短纯音掩蔽声和上扫调频掩蔽声(up-sweep frequency modulation masker)。

Considering the effect of the change of ambient light on the navigation system of the car, an image processing algorithm with adaptive dynamic threshold is proposed to track the change of ambient light and provide an anti-jamming way for the navigation system with short operating time required.

考虑到环境光线的变化会影响导航效果，提出了一种自适应动态阈值图像处理算法；该算法运算量小，能跟踪环境光线的变化。

However, the threshold at which this distinction was made, and whether it was based on in-group favoritism or out-group derogation, was influenced by the nature of the situation and the task participants performed.

然而，这个区分的界线以及这个界线是基于内群体偏爱还是外群体贬损，受到情境的性质和被试所执行的任务的影响。

Third, the results also revealed that the toddlers'rhythmicity, intensity of reaction, quality of mood and the parenting style of punishment were always lead to the incidence of the deregulation incidence of social-emotional development. In the end, the binary logistic result told us that toddlers'gender, age, apporoach and withdrawal, persistence, threshold of responsiveness, the parenting of refused, encourage independence and explore and low-voltage-induced all can lead to the incidence of the competence.(2) The degree of effect caused by genetic and environmental factors on the toddlers'social - emotional development were revealed by the structural equation model.

研究结果1。两分类logistic回归分析发现，影响中国幼儿情绪社会性外显问题的生物遗传及环境因素有年龄、性别、活动水平、趋避性及适应性，母亲文化程度、拒绝及惩罚的家庭教养方式；影响内隐问题的遗传及环境因素有年龄、活动水平、趋避性、情绪本质及拒绝、关注与保护、控制施压的家庭教养方式；影响失调问题的遗传及环境因素有节律性、反应强度、情绪本质及惩罚的教养方式；影响能力问题的遗传及环境因素有性别、趋避性、坚持性、反应阈、家庭收入、接纳、拒绝及低压诱导的家庭教养方式。2。

In order to cause the farmer resident to carry on smoothly, in view of the farmer comprehensive quality question,the loses farmer's compensation question,the social security question,lateral economic ties question, we need to enlarge the education investment, strengthen farmer's education training, solve there children's education problem; we should formulate compensation standard reasonably, make land legislation scientific, perfect government function; we must establish a scientific,comprehensive and unified social security system gradually; we need to desalinate the relation of household register and the social authority slowly, reduce the city admittance threshold, form a lateral economic ties to conform to the Chinese national condition;we should try our best to develop country company.

为使农民市民化顺利进行，针对农民综合素质，失地农民补偿，社会保障，户籍制度等问题，需要加大教育投入，加强农民的教育培训，解决其子女的教育问题；科学制定补偿标准，科学土地立法，完善政府职能；逐步建立一个科学的，全面的，统一的社会保障体系；慢慢淡化户籍与社会权力的关系，降低城市准入门槛，形成一个符合中国国情的户籍制度；大力发展乡镇企业。

Comparison has been done about the sample selecting of the partial duration series method and the annual maximum series method by using the statistical simulations. The effect of different threshold values on the frequency analysis results has been studied.

本文运用统计试验方法对部分历时序列法与年最大值统计法两种不同取样方法的比较、不同阈值对频率分析结果的影响等方面进行了研究。

The dependence of the output laser intensity and threshold on the temprerature, the effective optical length of the crystal and the reflectivity of the output coupler are discussed.

讨论了晶体温度，晶体的有效光学长度，以及输出镜的反射率等因素对激光输出强度和发光阈值的影响。

Considering the historical transition and the feature of modernity of the western philosophical theme,the understanding and construction of the ultimateness,infinity,integrity and non-substantiality and so on of Tao in China's philosophy not only provides the most powerful demonstration for the contemporariness of China's philosophy,but also offers boundless possibility for the visual threshold of the question...

如果从"世界主义"的视角，把"合法性"理解为"合时性"的话，那么"现代性"问题的实质就是，作为历史存在的中国哲学，能否融入当代哲学主题，并参与当代哲学建构的问题。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。