查询词典 squares

The effects of soil moisture on abscission of squares and bolls in different stages and on fiber quality of cotton were studied in 1991~1995 under the conditions of water control.

1991～1995年在人工控制水分的条件下，研究不同生育阶段土壤水分对棉花蕾铃脱落与纤维品质的影响。

It was found that deficient or excessive soil moisture led to increase in abscission of squares and bolls and decrease in fiber quality.

研究发现，土壤水分不足或过大，均易造成蕾铃脱落增加和品质下降。

This paper presents a method of iteration for least absolute deviation regression,which uses weighted least squares methods.

利用加权最小二乘法，提出最小一乘的一种迭代算法，这种方法使最小一乘法在计算上变得简单、直

Therefore, the absolute magnitude of the error pattern can be represented by the extra sum of squares using the weighting factor .

因此，绝对程度的误差模式可以通过多平方用加权因子代替。

On the basis of the conversion relation of inverse matrix and adjoint matrix, by using 1/ω instead of |B'(xBx(subscript k|, a new Landweber iteration formula x(superscript δ subscript k+1)=x(superscript δ subscript k)-ωB'(x(superscript δ subscript k)Bx(superscript δ subscript kB'x(superscript δ kf(x(superscript δ subscript k)-y(superscript δ)is constructed for solving rank deficiency nonlinear least squares problem, with which the phenomenon that leads to ill-posed problem because the iteration matrix is rank-deficient and very ill-conditioned in numerical iterative process is avoided.

基于逆矩阵和矩阵伴随算子的换算关系，并用1/ω代替|B′(xBx(下标k|，构造出一个新的求解秩亏非线性最小二乘问题的Landweber迭代格式，x(上标δ下标 k+1)=x-ωB'(xBx(上标δ下标 k*B'x(上标δ下标 kf(x-y，从而避免了在迭代过程中由于迭代矩阵的秩亏和病态而产生的不适定现象。

The simulation shows that STFMPC signal is sensitive to Doppler frequency-shift,and its ambiguity function has one aiguille at the origin and four symmetrical right-angle set-squares with the aiguille as their common spindle.

通过计算机仿真，结果表明该信号是多普勒敏感信号，其模糊函数为在原点的1个尖峰和4个以尖峰为公共轴的有一定厚度的对称直角三角板。

The order and time delay of the dynamic model are assumed to be unknown a priori. A time-weighted digital filter is employed to group of linear algebraic equations. The moving horizon least-squares algorithm is then developed to estimate the model parameters in a recursive fashion.

该法应用一时间加权离散滤波器将特定时段内取样的输出入讯号转换成一实数，然后利用不同时段的量测讯号以移动区间递回最小平方演算法来估测模型参数。

The PSF values can be estimated by alternating iterative minimizing the objective function, and the object images can be restored by the constrained least-squares filtering method.

将小波变换与分解的多分辨特性和时频局部化特性应用在湍流退化图像的盲目复原中，降低了算法的计算复杂性并提高了其抗噪能力。

Like the central nave, the north was apparently decorated with one continuous panel. To the east, this gave way to a small design of crosses and squares. Enclosed in rectilinear edges, the panel showed a design of interlocked octagons, which, in turn. formed squares. hexagons and triangles. At some unknown date, this panel of white, black and red cubes was damaged by a crack which was repaired with white cubes.

像中殿一样，北边的长廊是由一个连续的窗格所装饰，直到东面才变为一个小的十字和方形的设计，并逐渐在边缘被密封，窗格由一连串的八角形设计，形成了方形、六角形和三角形，不知道在什麼时候，这些窗格的白色、黑色和红色的镶嵌块被损坏，这个裂缝被一个白色的镶块的修复。

A three-sided measurement method,a weighted least squares estimation method and a robust least squares estimation method are used to make wireless sensor network node localization more accurate.

为提高无线传感器网络节点定位精度，提出3种基于距离信息的改进定位算法：改进三边测量法、加权最小二乘估计、抗差最小二乘估计。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。