特征参数

According to the extraction of cells figures, based on the edge detection the paper extracts 9 measurement parameters such as centroid, area, area rate of karyon and cytoplasm, optic density, cells and karyon shape factor according to the morphological knowledge and the medical knowledge of pathology expert.

在细胞特征提取方面，在边缘检测的基础上依据形态学知识和病理学专家的医学知识提取了诸如周长、面积、核质比、光密度、细胞及细胞核形状因子等9个度量参数。

Based on structural health monitoring system of Donghai Bridge, the cable-stayed bridge response and environmental factors were measured during the typhoon Krosa. The characteristics of typhoon, wind-induced response and structural modal parameters variation were analyzed.

基于东海大桥健康监测系统得到的斜拉桥在&罗莎&台风下的结构动力响应和环境因素的监测数据，分析了台风的风特征、风致结构振动和风荷载下的结构模态参数的变化。

Then the function of lithological recognition for each type is set up by using multivariate discriminative analysis method.

在中国大陆科学钻探CCSD-1井110~2000m井段实测资料的基础上，通过取芯井岩芯和相应测井曲线对应特征的分析，挑选出对岩性识别能力强的测井参数，应用多组判别分析方法，建立了研究区各类岩性的识别模型。

The algorithm of measuring zero-crossings can better solve the problems that the characteristic parameters of the pulse signal are complicated in the time field and the measuration errors are greater.

提出的过零点检测算法，较好解决了脉搏信号时域特征点参数多，分析复杂，误差较大的问题。

The particle size distribution fractal was introduced into powders' flowability testing, through used the mathematical model which utilize the geometry properties of the particle, and propitious to the digital micrographic image analysis method. It was gained the fractal dimensions, discussed the relationship between the powders' flowability denotation parameters and powders' PSDF, and also made a primary research about the action effect of flow addition reagent magnesium stearate.

本文中在颗粒流动性测试时引入粒度分布分形维数，通过采用利用颗粒几何特征，便于采用数字显微和用像处理计算粉体粒度分布分形维数值的数学模型，得到粉体粒度分布分形维数值，探讨颗粒流动性表征参数与粉体粗度分布分形维数值间的关系；并就流动助剂硬脂酸镁对粉体流动性能的改进与粉体粒度分布分形维数值关系进行了初步探讨。

The comparison shows that the presented algorithms are capable of the numerically implementing of complicated constitutive model; and the modified ALPHA model, which overcomes the deficiencies of modified Cam-Clay model, such as predicting higher peak strength for over consolidated clay and assuming elastic deformation inside the initial yield surface, can depict the nonlinear and nonrecoverable deformation before yielding. Through varying model parameters, more complicated deformation behaviors can be simulated by the modified model.

改进的本构模型克服了修正剑桥模型预测的超固结土峰值强度过高、初始屈服面内假定为弹性变形等缺点，能够较好地描述土体初始屈服面内的的非线性和不可恢复性变形特征；通过变化模型参数，可模拟变形特性较为复杂的土体。

The unsaturated fatty acid consists of linolenic acid 10.0-21.5 %, oleic acid 6.0-12.6%, C16 olefine acid 0-4.4%, C17 olefine acid 0-6.3%, C18 olefine acid 0-4.5 %, monoglyceride 0-6.0 % and beta sitosterin 0-5.1%.

其特征在于：采用分子蒸馏装置在确定的操作参数下进行分离提纯。

Maturity of Lower Cretaceous source rock, researched by the authors, is closely relative to the deposition thickness of the Tertiary and the Quaternary. It shows that source rock at the depth of 4,000-4,400m is low mature, and 4,400-5,200m is in the peak of oil generating. Correspondingly, the source rock of the Zhonggou Formation is immature; the Upper Xiagou Formation is low mature; and the Lower Xiagou Formation and the Upper Chijinpu Formation are in the peak of oil-generating; and the Lower Chijinpu Formation is at the stage of generation of condensate-wet gas with high maturity. There is no source rock reaching the overmature stage of dry gas at present.

可溶有机质转化率、镜质体反射率、热解、生物标志物特征等参数表明：青南凹陷中部的下白垩统烃源岩生油门限深度为4000m（相应的镜质体反射率为0.65％），埋深4000～4400m为低成熟阶段，埋深4400～5200m为成熟生油高峰阶段，因此中沟组烃源岩未成熟，下沟组上部烃源岩低成熟，下沟组下部和赤金堡组上部烃源岩处于成熟生油高峰阶段，赤金堡组下部烃源岩处于高成熟的凝析油—湿气阶段，目前尚无烃源岩达过成熟干气阶段。

The concept of stratigraphic pile-up sequences and decomposition model of overlapping process of Logistic chaotic series are applied to extract the weak signal for the sequence of lithologic ratio parameters, which has established the basis for dynamic modeling of three dimensions in the paleogeographic environment of hydrothermal sedimentary basin.

运用地层垒积序列的概念和Logistic混沌序列叠加过程分解模型，对岩比参数序列中的弱信号进行提取，进一步研究热水沉积作用强度演化的定量特征，为对热水沉积盆地古地理环境进行三维动态模拟奠定了基础

The concept of stratigraphic pile-up sequences and decompositionmodel of overlapping process of Logistic chaotic series are applied to extract the weak signal for the sequence of lithologic ratio parameters, which has established the basis for dynamic modeling of three dimensions in the paleogeographic environment of hydrothermal sedimentary basin.

运用地层垒积序列的概念和Logistic混沌序列叠加过程分解模型，对岩比参数序列中的弱信号进行提取，进一步研究热水沉积作用强度演化的定量特征，为对热水沉积盆地古地理环境进行三维动态模拟奠定了基础。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。