查询词典 logistic curve

Prepared using a logistic model for cell growth curve of simulation program.

详细说明：一个用logistic模型编写的细胞生长曲线的模拟程序。

Geotechnical engineering; settlement prediction model; logistic curve; differential evolution; parameter optimization

岩土工程；沉降预测模型；逻辑斯谛曲线；微分进化算法；参数优化

Based on the logistic model and learning curve model,the simulation analysis on the evolution model of wind-power industry shows that the industry chain of wind power has an expansively developing prospect.

基于Logistic模型和学习曲线模型构造的风电产业演化模型仿真分析表明，我国风电产业链的发展前景广阔。

Firstly, the development courses and stages following logistic curve are analyzed.

本文基于自组织理论，对发展系统的持续性问题进行了较系统的研究。

This thesis also analyzes the evolvement process of the urban traffic system with Logistic increase curve, and brings forward the mode of the sustainable development.

运用Logistic增长曲线方程系统分析了城市交通系统发展的演化过程，提出了城市交通系统的持续性发展模式。

The curve of concentration of chlorophyll-a is the same as the logistic curve.

叶绿素a 总量的生长曲线近似于逻辑斯谛生长曲线。

Stroke; Clinical study model; Study of syndrome; Curve Estimation ; Logistic Regression; Study of complexity; Unlinear science

中风病；临床研究模式；证候学研究；曲线参数估计； Logistic回归；复杂性研究；非线性科学

Result The phenological characteristics of Nandina domestica from different areas and germplasm resources were basically identical; the growth patterns of cultivated type and wild type were also basically identical while the cultivated type grew faster than the wild type; both the two types grew very quickly in young stage while the annual growth of new shoots and the growth patterns of leaves all followed the fitting curve of the Logistic equation.

结果］南天竹各地理种质资源物候特征基本一致；栽培型和野生型生长规律基本一致，但栽培型的生长速度大于野生型；不管是栽培型或是野生型南天竹的高生长在幼龄期都比较迅速，其新梢的年生长、叶片生长规律都遵循Logistic方程的拟合曲线。

Through analyses, we can make the conclusion that, the relation of seed fresh weight dry weight and days after pollination, fat percent content, protein nut content, starch nut content can be expressed with Logistic equation; the change of kernel volume, moisture content of kernel and days after pollination accorded with three ascend curve equation. Kernel protein content, starch content and the changes of days after pollination tallied with reciprocal equation and they had high relation.

经过统计与分析，可以看出籽粒鲜重积累量与授粉后时间、籽粒干重与授粉后的时间、脂肪净含量、脂肪百分含量、蛋白质净含量、淀粉净含量与授粉后的时间均可以用Logistic方程描述，籽粒体积变化与授粉后的时间关系表现为三次上升型曲线方程；籽粒的水分含量与授粉后的时间关系表现为三次下降型曲线方程；籽粒中蛋白质百分含量与授粉后时间的动态变化规律、籽粒中淀粉百分含量与授粉后时间的动态变化规律符合倒数方程，均具有较高的拟合度。

ROC analysis showed that using inflection point and the second extreme point of curvature as judgment indexes, greater area under curve could be obtained, and the Youden index was 0.54-0.64, which exhibited judgment capacity.

说明LOGISTIC曲线模型的数学特征值与物理治疗效果存在明显的关联，LOGISTIC曲线模型对颈椎病物理治疗的过程特征表达充分。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。