查询词典 minimum value

The interest is in extremal functions: those making the functional attain a maximum or minimum value.

变分法 最终寻求的是极值函数：它们使得泛函取得极大或极小值。

Users may also need to set power factor, the minimum value of over-voltage parameters.

同时用户可根据需要设定功率因数上、下限，过电压值等参数。

I did a teaching experiment on solving the maximum and minimum value of quadratic function in one variable with two different teaching ways: asking questions and dialogue. These two periods are studied and analyzed here.

本人用提问与对话两种不同的教学方式对一元二次函数在闭区间上的最值这一数学内容进行了一次观察与分析的教学尝试，并对这两节课进行了个案研究与分析。

The transmittance performance of LuBiIG garnet film by LPE method and polycrystalline garnet film by RF magnetron sputtering in THz frequency range has been investigated and the results show that garget film is with low absorbance coefficient at THz band, and minimum value is 0.01- 0.2/cm, and garnet films are potential materials in THz wave-guide application.

结果发现：该种石榴石薄膜在THz波段(0.1—3THz)有着很小的吸收损耗系数，最小值为0.01---0.2／cm之间，是一种非常有潜力的THz波导传输材料。

For a given geometric parameter there exists a boundary condition, which gives a minimum value of the total exergy loss rate for a unit volume, and vice versa.

该结论对优化设计换热器及对给定边界条件的换热器优化选取具有一定的指导意义。

This expression may be used to compute the minimum value of RE for a given input voltage amplitude.

这个表达可以用来计算某一最低转口输入电压幅值。

Traditional determination of myocardial infarction location with body surface potential maps were processed according to the appearance time and location of the minimum value in body surface potential integral maps.

由体表电位对心肌梗塞区域的定位，以往的方法一般只根据极小值出现的时刻和位置来进行，分辨率不高。

In order to reduce calculation error, the frequency distribution of average values is used to compute the mixed distribution's digital features of each component distribution, thereinto, the number of the component distribution is determined by AIC, choose the number that meets the minimum value of AIC as the component number of mixed distribution, and the other parameters are estimated by EM algorithm; Secondly, because each component distribution is corresponding to a kind of major gene genotype, according to the values of the average and variance of the each component distribution, we can use the limit error of the normal distribution to plot each individual into the correspondent component distribution, namely into correspondent major gene genotype. Then we regard each major gene genotype as a treatment level of one-way analysis of variances, and the one-way multivariate analysis of variance is carried out to calculate the covariance matrix of major gene effect, covariance matrix of polygene effect, covariance matrix of environment effect and so on; At last, combining the weights of the each component distribution of mixed distribution, we can calculate the variance of major gene effect, the variance of polygene effect, environmental variance and the genetic gain of the quantitative trait.

为减小计算误差，本研究采用均值的频数分布来计算各成分分布的数字特征，其中成分分布个数根据AIC准则，选择使AIC值达到最小的成分分布个数作为混合分布的成分分布数，分布中其它参数的确定利用EM算法来估计；其次，每个成分分布对应一种主基因基因型，根据各个成分分布的均值和方差，利用正态分布的极限误差将每个个体划分到相应的成分分布中，即相应的主基因基因型中，将每种主基因型作为单因素方差分析的一个处理水平，对其进行单因素的多元方差分析，分别计算主基因效应协方差阵、多基因效应协方差阵、环境协方差阵等参数；最后结合混合分布中各成分分布的权重即各主基因基因型的分离比例，计算主基因效应方差，多基因效应方差和环境方差，以及遗传力等参数，进而计算该数量性状的遗传进展。

If , is a local minimum value of .

当时，那么在处取得极小值。

It simulates genetic evolutionary process of organisms and avoids local minimum value.

该方法模拟了生物遗传进化的过程，克服了传统方法容易陷入局部最小值的缺点。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。