查询词典 normal function

Considering the average critical gap of pedestrians walking through the vehicle flow and analyzing on large scale of data, it can reach the practical conclusion that the acceptable gap follows the normal distribution function N（4.86,1.72）. In order to make further analysis of the pedestrian delay,capacity and the conflicts with the vehicles,the average critical gaps are evaluated by three different ways.

通过研究行人穿越机动车流的平均临界间隙，对所观测的行人穿越间隙数据进行归纳分析，得出可接受穿越间隙的正态分布函数N（4.86，1.72），并通过三种不同的方法逐一计算出平均临界间隙，可为今后的行人延误时间、通行能力以及与车辆之间的冲突分析研究提供解决方案。

Using the prior knowledge of endmembers' coexistence, combined with the normal distribution function of endmembers' spectra, the optimal endmembers set was selected based on maximal liklihood.

在获得端元共存的先验知识基础上，结合端元光谱的正态分布函数，通过最大后验概率得到最佳的端元集合。

The semi-low normal distribution membership function of fatigue limit is determined, and the anti-fatigue fuzzy reliability compute formula of rotor is deduced. The fuzzy reliability model of rotor anti-fatigue is set up. Taking an internal shaft of the rotor of aero electric generator for an example, its reliability design can be realized by adopting the anti-fatigue reliability design theory presented in the dissertation.

首次确定出了疲劳极限降半正态分布形式的隶属函数，推导出了转轴抗疲劳的模糊可靠度计算公式，建立了转轴抗疲劳的模糊可靠性模型；以航空发电机转子内轴为例，对其进行了抗疲劳的可靠性设计，并用本文建立的抗疲劳的模糊可靠度计算公式，对其进行了模糊可靠性校核。

By the minimum risk Bayes decision theory, this paper develops a new way of image segmentation: establish the mathematics model of image segmentation; estimate the probability density of grey scales and figure out its math-expectation and square difference that accord with normal distribution and the loss function; and judge the every pixel dot in the image according to the minimum risk Bayes decision theory and determine whether it is of target or non-target images, thereby realizing the extraction of the target image.

依据最小风险贝叶斯决策理论，提出了一种基于最小风险贝叶斯决策的图像分割方法。首先建立图像分割的最小风险贝叶斯决策模型，对灰度级类条件概率密度估计出其符合正态分布的数学期望和方差以及损失函数，再依据最小风险贝叶斯决策理论对图像中的每一像素点进行目标图像和非目标图像的类别判断，从而实现目标图像的提取。

Especially, the Hill coefficient is considered not any physiological meanings in the mathematics model usually used in fitting pharmacodynamics S dose-effect curve, but the analogous parameter in the accumulation normal distribution function has definite physiological meanings, and indicate the relationship between pharmacology and pharmacodynamics.

特别地，在常用于药效学S型剂量效应曲线拟合的数学模型中，其Hill系数被认为没有任何生理学含义，而累积正态分布函数中的相应参数却有明确的生理学含义，从数学上体现了药理与药效的内在联系。

It needs high precise function value of normal distribution.

给出了实现高精度二维正态分布函数值的算法。

In order to accurately simulate the mechanical behavior of sheet metal, normal anisotropy and anisotropy constitutive equations were derived by the author based on Kirchhoff hypothesis and Hill's yield function.

为了准确模拟板料的力学行为，作者根据Kirchhooff假设和Hill各向异性屈服条件，分别导出了厚向异性和各向异性金属材料的弹塑性本构关系。

For GPS precise kinematic/mobile positioning, the function models and stochastic models in both single epoch way and OTF (on-the-flying) way are respectively given, and the general normal equations to suit programming in computer are constructed in this section.

对于 GPS 精密动态定位，分别给出了在单历元方式和 OTF 方式下的函数模型和随机模型，以及适宜于编程的通用法方程式。

The ill-conditioned normal equations bring numerical problems in construction of macromodel in time domain for power distribution networking using rational function approximation.

摘要有理函数逼近法方程组病态条件数为构建电源分配网络时域宏模型带来了数值问题。

Axonal transport plays an important role in maitaining the normal form and function of neuron.

轴突运输在维持神经元的形态与功能中起重要作用。

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。