1) variance component
方差组分
1.
The variance component analysis revealed that the ratios of additive genetic variance to phenotypic variance of the majority of economi.
进一步的方差组分估计表明 ,主要经济性状的加性遗传方差较大。
2) variance components
方差组分
1.
In this article, by exploiting flanking markers through the widely applied half-sib design, we have developed the structures of three variance components, i.
该文在侧翼标记情况下利用广泛使用的半同胞设计提出了3种方差组分,即标记组间方差、组内多基因方差和组内重组方差及其构成。
3) Variance grouped
方差分组
4) system of difference equation
差分方程组
1.
Based on the differential equations and the system of difference equations,the mathematical model of the procedure of the resonant rise of thyristor parallel resonant intermediate frequency power supply was established,then the analytical solutions of the transient and steady state variables were obtained.
以微分方程和差分方程组为基础,建立了全桥并联补偿晶闸管中频电源主回路启动由瞬态至稳态工作过程的数学模型,并得到了瞬态和稳态各状态变量的数学解析解,用M athem atica进行的仿真计算结果与实际相符,验证了这种建模与仿真方法的正确性,最后对这种方法的应用进行了讨论。
5) difference systems
差分方程组
1.
This paper was concerned with the following discrete system,by using the theory of the fixed-point index,we investigate a boundary value problem for three-order nonlinear difference systems with parameter,and the theorem of existence of positive solution is given.
运用不动点指数理论,研究了一类带参数的三阶差分方程组边值问题,给出了其正解的存在性定理。
2.
This paper is concerned with a class of third order difference systems with Dirichlet boundary condition.
讨论了一类三阶差分方程组Dirichlet型边值问题,借助Green函数的有关性质,在非线性项满足一定条件下,运用Leggett-Williams不动点定理建立了3个正解的存在性。
6) difference equations
差分方程组
1.
The global asymptotic stability of one kind of difference equations with variable coefficients;
一类变系数差分方程组的大范围一致渐近稳定性
2.
The solution of homogeneous and linear difference equations with constant coefficient;
一类齐次线性常系数差分方程组的解
3.
Stability conditions based on Cauchy-matrix for some classes of time-varying linear difference equations;
几类基于Cauchy矩阵的变系数线性差分方程组的稳定性条件
补充资料：并合方差
分子式：
CAS号：
性质：是按加权方式计算出的各组的共同方差，当试验分m组进行，总的测定方差s2由m组的方差si2(i=1,2, …,m)共同决定。总方差，式中ni、fi和xi；分别为第i组的测定次数、自由度和平均值，xij是第i组的第j次测定值。
CAS号：
性质：是按加权方式计算出的各组的共同方差，当试验分m组进行，总的测定方差s2由m组的方差si2(i=1,2, …,m)共同决定。总方差，式中ni、fi和xi；分别为第i组的测定次数、自由度和平均值，xij是第i组的第j次测定值。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条