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coefficient相关的网络例句

查询词典 coefficient

与 coefficient 相关的网络例句 [注:此内容来源于网络,仅供参考]

For this reason, the author of the article puts forword a new concept projective vector and coefficient "image" of projective vector. Coefficient of projective vector is put forword by the author for the frist time. It is of high value, both in mathematics and theory.

为此,本文给出了"一个向量在另一个向量方向上的射影向量和射影向量系数"的概念,"射影向量系数"这一概念,为作者本人首次提出,具有重要的教学价值和理论价值。

As a test problem, the steady flow fields and hydrodynamic forces of a 6:1 prolate ellipsoid at different incidence angle are computed. Computed results including surface pressure coefficient, surface friction coefficient, and body hydrodynamic coefficients, are compared with experimental and numerical ones of published papers, the agreement is satisfactory.

作为算例之一,给出了6:1椭球体在不同攻角下定常流场和水动力的数值计算结果,包括物体表面的压强系数、切应力系数的分布及物体所受升力系数、阻力系数和力矩系数随攻角的变化规律,并与国外文献的计算和实验结果进行了比较,符合程度令人满意。

Take the opportunity of this project, theoretical and experimental researches on the high-efficiency evaporator used in a large quick-freeze equipment have been done. The main work of experimental research is as follows:(1) Compare and analyze the influences of structural parameters on the heat transfer coefficient of an evaporator. The calculation results show that, under non-freezing conditions, the structure possessing the highest heat transfer coefficient is the one with circular fins, equilateral-triangle arranged small tubes and varying fin-spacing.

主要做了以下几方面的试验研究工作:(1)对不同翅片形状、管径大小、翅片管排列方式,以及是否带波纹等结构参数对蒸发器传热系数的影响进行了比较分析,得出在不结霜工况下,具有最高传热系数的蒸发器结构是圆翅片小管径正三角形排列等节距结构的结论。

Based on the dataset of 52 plots investigated from the field,the interspecific relationship among 31 dominant populations of the communities of abandoned land in Guandi Mountains,Shanxi was studied by using χ^2 test for 2 × 2 contingency tables,Pearson's correlation coefficient test and Spearman's rank correlation coefficient test, respectively.

根据野外52个样方的调查数据,运用2 2列联表的χ^2检验、Pearson相关系数检验和Spearman秩相关系数检验研究了山西关帝山撂荒地植被31个建群种和优势种种间关联和相关关系。

The interspecific relationships of the main tree species in the forest communities were studied using Fisher's exact test for a 2×2 contingency table, Pearson's correlation coefficient, Spearman's rank correlation coefficient.

采用 2× 2列联表的Fisher精确检验、Pearson相关系数和Spearman秩相关系数检验研究山西省历山自然保护区猪尾沟森林群落树种种间关系。

The thinking of this method as follows:Firstly,using single evaluation methods to evaluate.If the evaluation results aren\'t same,the Spearman rank correlation coefficient is used to calculate the correlation among the results of single evaluation methods.Based on the results,the traditional combined evaluation methods are used to combine the results of the single evaluation method.If the results of the upper combined methods are not same. Here the combined method evaluation indexes,such as Spearman rank correlation coefficient,correlation degree,the max deviation,average deviation,are used to evaluate the upper four combined evaluation methods.The entropy method is used to calculate the weights,and then get the final evaluation result.

首先,采用单一综合评价方法进行评价,对于不一致的评价结果,通过Spearman等级相关系数验证各单一评价方法间是否具有相关性;(来源:4dbdABbbC论文网www.abclunwen.com)对存在相关性的单一评价方法采用组合评价法对其结果进行组合,若所得评价结果仍不一致,采用Spearman等级相关系数、关联度、最大偏差、平均偏差对组合评价方法的组合效果进行评价,最后运用熵权法对上述组合评价进一步组合得到最终评价结果。

A bstract: This paper focus on virtual instrument design of modal parameters identification with curve fitting theory based on rational fraction orthogonal polynomials. Using Forsythe orthogonal polynomials solves the coefficient equation instead of normal power polynomials in order to decrease the morbidity of it, making the orders of coefficient equation reduce to half and increasing computing efficiency.

本文基于有理分式正交多项式曲线拟合理论对振动系统的模态参数辨识进行了虚拟仪器的设计,为了减少系数矩阵的病态,采用 Forsythe 正交多项式代替普通的幂多项式进行求解,使系数矩阵阶次降低近一半,提高了运算速度。

The conclusion show as followings: Based on parameter recension of EPIC model, the correlation coefficient between simulated alfalfa forage yield and root zone soil water with observed value were 0.8957 and 0.9884, the correlation coefficient between simulated A.

2半湿润区紫花苜蓿30年的水分生产潜力模拟值为4.262~13.456t/hm~2,根层有效水含量在第8年达到极低值,受土壤水分降低的影响,苜蓿的水分生产力水平开始降低,干旱胁迫日数开始加重,且分别与当年和前一年的降雨量成正相关和负相关变化。

Firstly, the coefficient matrix is put into Excel so as to see the possible solution to the linear equation groups; then the reciprocal matrix of the coefficient matrix is obtained; lastly the solution to the linear equation group is gotten.

首先在Excel中输入系数矩阵,并判断线性方程组是否有解,然后求出系数矩阵的逆矩阵,最后求出线性方程组的解。

Taking the active network as a research task, the input accessibility, the Coates graph of matrix and graph transmission etc are used to analyze the relation between reducibility of the coefficient matrix of the state equation and the electric separability of the network or the electric accessibility of the network for the first time, acquiring sufficient and necessary conditions that coefficient matrix of the state equation is reducible. Network Graph Theory, Matrix Theory and System Theory over F etc are used to derive the structural controllability criterion of the passive network over F for the first time. Then according to these theoretic results, the structural controllability problems of the active network over F are studied, acquiring several structural controllability conclusions of the active network.

率先将状态方程的输入可达、矩阵的Coates图、流图传输系数等概念和方法引入到对F上有源电网络的研究,研究了网络状态方程的系数矩阵的可约性与网络电气可断性或电气可达之间的关系,研究了F上有源电网络的能控性问题,获得了状态方程的系数矩阵可约的充分必要条件、F上有源电网络系统的结构能控性判据等新的结论。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

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However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。