对数

Natural logarithm of firm assets figures.

企业资产数字的自然对数。

Most computer languages use log for the natural logarithm, while the common log is typically denoted log10.

多数计算机语言把 log 用做自然对数，而常用对数典型的指示为 log10。

In this paper,using the measured rate constant and native structure for a set of 22 small two-state proteins,discuss the rule of changing between the two parameters of the contacts and correlation of natural logarithm of the experimental folding rates and number of native contact.

在这篇论文里，以折叠速率和天然结构已知的22个两态小蛋白质作为研究对象，讨论了蛋白质的折叠速率的对数与其基于结构的天然接触数之间的相关性随"接触"定义中两参数的变化而变化的规律。

Returns the natural logarithm (base-e logarithm) of x .

返回 x 的自然对数。

The objective of this paper is to analyze medical expenses records of a group in a year. The Kernel Density Estimation, a nonparametric method, is used to estimate the density function of natural logarithm of medical expenses amount. Then the estimated density function is used to estimate the means and variances of medical expenses amount spent by the inpatients per time.

本文研究了某团体一年的住院医疗费用记录，运用非参数模型中的核密度估计方法，对每次住院费用对数的分布密度进行了估计，并用它进一步估计了每次住院费用的均值和方差，取得了较好的效果。

With the natural logarithm applied to the division of layers of thickness, the division of deformation resistance parameters is carried out according to different layers of thickness to solve the self-learning of rolling force. Then, the method of exponential smoothing is introduced into the model to deal with the deformation resistance parameters of each and every layer of thickness.

模型通过自然对数法进行厚度族的划分，并将用于轧制力自学习的变形抗力参数按照不同的厚度族进行区分，最后模型采用了指数平滑法对各个厚度族内的变形抗力参数进行处理。

Moreover, the most important factor affecting business moral risk of listed company is the motive contract of senior manager, then following factor is the nature of enterprise, theenterprise prestige variables (natural logarithm of company asset, enterprise profits), the degree of government intervene and the degree of law and regulations.

更为重要的是，影响在复杂多变环境下运作的上市公司企业道德风险的最重要因素是高级经理人员激励契约，接着依次是企业性质、企业声誉变量(公司资产自然对数，企业盈利)、政府干预与法治水平。

The new gray-level value natural logarithm ratio Bilateral Neighborhood filtering method can not only well restrain noise but also keep much more weak edges and details of an image, and preserve the original color transition of color images.

新的灰度值自然对数比率双边邻域滤波模型不仅保持了原有双边邻域滤波模型较好的平滑效果，而且保留了尽可能多的细节部分，同时对于彩色图像还保持了原有图像的色彩过渡。

After treatment and analysis of 150 domestic test data, probabilistic characteristics of displacement ductility factor of reinforced concrete frame columns and frames fits natural logarithm normal distribution and a functional expression is proposed by a statistical regression.

通过对国内150个钢筋混凝土框架柱和框架试验数据的整理和分析，得出位移延性系数的试验结果服从自然对数正态分布，并回归得到考虑多因素的位移延性系数经验公式，该公式可供钢筋混凝土框架结构抗震设计和评估参考。

Random.lognormvariate Return a floating point value with a log normal distribution; the natural logarithm of this distribution is Gaussian with mean 'mu' and sigma 'sigma'.

返回a浮点值与a日志正态分布；的自然对数的分布是高斯，平均'mu'和西格马

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。