对数

Baser on the primal-dual logarithmic-barrier method , a novel method for optimal power flow problem is presented in this paper .

在原对偶对数障碍法的基础上，提出一种改进算法用于解决最优潮流问题。

The program certifies hundreds of consumer products for energy efficiency.

该计划对数百种消费产品的能源效率进行认证。

The double logarithm curves represents two down concaves, the cross flow comes from cave system to fracture system and the equivalent triple continuous medium channels to the fracture system and cave system.

所绘制的双对数导数曲线表现为2个下凹部分，分别表征溶洞系统向裂缝系统的窜流，等效连续介质向裂缝系统、溶洞系统的窜流。

It is also proven that the OLS residuals of a log-linear trend model of an integrated series will be always a random walk, in which case the differenced model that yields the same result as geometric mean is appropriate.

我们也发现，一个协整序列的对数趋势中最小二乘估计获得的残差通常是随机游动过程。

Subsequently, clustering analysis in data mining is disserted, involving the methods and characteristics of clustering used in data mining and the methods for evaluating the clustering results, with emphasis on clustering the data with categorical attributes.

在此基础上对数挖掘中的聚类分析作以详细地论述，总结了数挖掘中聚类分析的方法和特点，并对聚类结果的评价方法进行了讨论，重点讨论了分类属性数据聚类，具体研究了k-modes 算法及其变形，并指出了它们的优缺点。

The transcript expressions of a membrane-combined protein golgin-245 and veticsular traffic protein Rab-1 of Golgi body were analyzed in log-phase and encysting trophozoites (6, 12, 24 hours) with RT-PCR assay.

同时利用半定量RT-PCR方法检测高尔基体膜结合蛋白golgin245和膜泡融合的调节蛋白Rab1在蓝氏贾第鞭毛虫对数生长期滋养体及成囊6、12、24h的虫体中的表达水平。

The results show that the probability distribution characteristic of the vertical permeability coefficient in fissured rock zone is much close to the log-normal distribution.

结果表明，同正态分布和均匀分布相比，裂隙岩体地区的垂向渗透系数更接近对数正态分布。

In each case, we perform the Metropolis–Hasting's algorithm see

在每种情况下，我们完成了Metropolis-Hasting的算法参见[12、13]的使用服从对数正态分布的提案的参数来模拟随机变量序列的迭代离开10第1000迭代，然后选择一个采样点在每100个迭代来减少迭代关系样品。

Minor differences also exist between the two. The classification system of nematodes of the Tylenchina suborder is a branching system more profuse than the Chinese Soil Taxonomy.

据此可认为，两种分类系统都是合理的信息系统，符合相同的分布模型，如幂律分布、对数正态分布等。

The program compile with BASIC language and O'NILLs filter coefficient can be used for forward calculation with the gived model.with the input of the observed data and the assumeed model,one can obtain the observed curve and calcula- ted curve in the Same dual logarithm coordinate.

该程序是根据 ONILL 的滤波系数，利用BASIC 语言编制的。它根据给定的地层模型可作正演计算。输入野外观测值以及所假设的地层模型便可在同一个双对数座标中绘出观测曲线和计算的曲线。

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。