随机

In contrast to conventional optimization algorithms whose iterates are computed and analyzed deterministically, randomized methods rely on stochastic processes and random number/vector generation as part of the algorithm and/or its analysis.

传统的最优化算法中迭代的计算和分析是确定的，与之相比，随机方法依靠随机过程和随机数字/向量的生成作为算法和算法分析的一部分。

The randomization scheme used permuted blocks with subjects equally allocated to be positioned using either the blanket method or the table-ramp method.

本研究在一个教学医院进行，随机化通过使用随机表格来决定，即将受试者平等分布在随机表格中，来决定其使用体位毯方式或手术床方式。

Many experiments shows that the method exhibit high generality to periodic and pseudo-periodic structured textures and can accurately recognize feature point mesh in a highly stochastic texture. Bases on the mesh statistic data, the method also quantizes macro scope randomness of texture. The quantized texture randomness parameter faithfully reflects the regularity of texture macro scope structure.

大量实验证明，该方法对周期及伪周期结构性纹理具有强大的通用性，能准确识别高随机度纹理中的特征点网格，并根据网格的统计数据对纹理的宏观随机度进行量化，量化后的随机度指数准确反映了纹理图像宏观结构的整齐程度。

In view of great uncertainty factors in the effect of shrinkage and creep, stochastic finite element method is applied to structural analysis. It can calculate the coupled stochastic response of uncertainty factors through randomizing input variables representing the stastics stochastic factors.

4考虑到收缩徐变效应分析中大量不确定因素的存在，本文引入随机有限元理论，通过对这些随机因素进行统计分析并作为输入变量，有效地计算模拟了不确定因素的混合随机响应。

The frequency characteristics and SRs of OAG in a second-order linear systemwith fluctuating intrinsic frequency or randomizing damping coefficient by asymmetricdichotomous noise are investigated.

研究了非对称双值噪声作用的随机本征频率和随机阻尼的二阶线性系统的输出幅度增益的频率特性和随机共振行为。

ABSTRACT This paper is mainly concerned with the reliability analysis of a gravity abutment of an arch dam based on conception of reliability.

再与可 靠度理论相结合，考虑变量的随机特性，通过随机有限元法建立荷载效应与基本随机变量之间的关系。

For the evaluation of cathode-ray tubeperceptible color difference threshold characteristics of the visual color matching, the experiment is carried out. By using the compiled color-matching program, the CRT generates color under gray background randomly.

为了对阴极射线管(Cathode ray tube，CRT)显示器颜色恰可辨别的小色差阈值进行评价，在中性灰背景下，用编制的颜色匹配程序，在CRT显示器上随机产生颜色，分别调节程序中R、G、B通道的值，使匹配色与随机色达到视觉上的一致，进行颜色视觉匹配实验，测量CRT显示器上随机色和匹配色的L*a*b*值。

The objective was to determine the effects of active immunization of T-3-BSA in Rom cockerels, 400 cockerels were divided into 4 groups, group 1,2 and 3 were treated with T-3-BSA on different dose(0.2,0.4,0.8mg/mI respectively),within each group,there were 5 treatments following different vaccination schedules, group 4 served as controls. Every injection of immunogen was conducted on different sites around the neck, and the datas were measured at week 11,15,19, combs,wattles,body weight,serum T concentration,carass traits and testicular development and histology were studied in order to find out the most reasonable vaccination schedule and the most possible mechanism in the H-P-G axis of T.

本试验测定了睾酮—3—牛血清白蛋白(T-3-BSA)主动免疫对公鸡性腺与冠垂发育及雄激素水平的影响。400只罗曼蛋用雏公鸡除随机取25只作对照组外，另375只随机分成3大组，每大组125只再随机分成5小组，每小组25只，3大组分别使用0.2mg/ml、0.4mg/ml和0.8mg/ml的T-3-BSA免疫注射，每大组的①②③小组分别于3、6、9周龄免疫注射，④小组于3周龄首次免疫，6周龄加强免疫，⑤小组于3周龄首次免疫，9周龄加强免疫。

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。

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。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。