特征参数

Based on the framework of wheat morphology visualization, the 3D geometric modeling technologies of wheat organs were investigated, and the organ geometrical models were developed with characteristic architecture parameters. The model included three submodels: leaf geometry, stem geometry and wheat spike geometry submodels.

本研究以小麦作物为对象，在提出小麦形态可视化技术框架的基础上，首先研究了小麦不同器官的三维几何建模技术，构建了基于器官形态特征参数的几何模型，包括叶、茎秆和麦穗几何模型。

Wavelet packet decomposition; statistical characteristic analysis; normal distribution; mechanical vibration; trolley track

工程科技II，工业通用技术及设备，声学工程小波包分解；特征参数；正态分布；机械振动；岸桥小车轨道

According to determined and analyzed of parameters of the wood transverse section micrograph, established of the recognition algorithm and programmed of wood recognition method, the results showed that the wood recognition method was feasibility based on the image manipulation.

通过对木材横切面显微图像量化特征参数的提取与分析、基于图像分析的判别匹配算法和判别程序的建立，结果表明，以基于图像分析的方法达到木材判别的目的是基本可行的。

In the experiment of using BP network to identify Chinese language short-winged, it uses parameters reflecting tone as the BP network input.

利用BP网络来识别汉语四声的实验中，用反映汉字声调的特征参数作为BP网络的输入信号。

Firstly, 19 seismic characteristic parameter vectors are extracted in about five species such as grey, fuzzy, fractal, amplitude , self correlation and power spectra from data sequence of the target stratum.

首先对目的层地震数字序列提取灰色、模糊、分维、振幅、自相关5类19个地震特征参数向量，然后在地质建模的基础上，进行灰色模式训练与识别，获得整个评价区的油气检测结果。

According to the four highway engineering geological subarea of the loess region, based on a great deal of indoor experiments and existing engineering data, the main physical and mechanical property index of each loess area were re-counted, and the district variational regulation of the loess physical and mechanical property were studied in order to get the characteristic parameter of the loess soil property index providing precious foundation data for the highway engineering construction of the loess region.

本文按照黄土地区的四个公路工程地质分区，以大量的室内试验和已有工程资料为基础，重新统计了各区黄土的主要物理力学性质指标，研究了黄土物理力学性质的区域变化规律，得出黄土土性指标的特征参数，为黄土地区的公路工程建设提供了宝贵的基础资料。

It was discussed about the traffic patterns of EGCS, characteristic parameters of traffic pattern identification, designing of classifier of traffic pattern identification and its optimization etc.

论述了电梯群控系统交通模式、交通模式鉴别的特征参数、交通模式识别分类器的设计及优化，并实现了电梯群控性能的提高。

Based on the analysis of working process of ejection gun of rocket ejection seat ,the physical and mathematical models of interior ballistics of ejection gun were established and the interior ballistics parameters of a rocket eject seat were validated by test and calculation.

在分析火箭弹射座椅弹射动力系统的工作过程的基础上，建立了其内弹道的物理模型和数学模型，并对某型火箭弹射座椅弹射动力系统内弹道进行了试验验证与计算，试验所测膛内气体压力随时间变化曲线与计算曲线基本吻合，弹射过程最大压力pm、工作时间tg、出口压力pg和出口速度vg分别为24.20(24.57)MPa，157(155)×10-3s，22.27(21.83)MPa，16.61(16.59)m.s-1，各特征参数的计算值最大误差小于3%。

The results indicted that this method can gain the characteristic parameters of raw silk's cross-section exactly.

结果表明，该方法可以较准确地得到生丝截面的特征参数。

Moving object recognition adopts an effective method based on the extractions of size and color features of moving objects.

而运动物体的识别则是通过提取运动物体的形状和颜色特征参数来对视频图像的运动进行匹配与识别。

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。