迭代法

According to the Planck formula,we have deduced a light wavelength equation of inflexion on Planck function , and solved two roots of the equation by Newton-Raphson method.

基于普朗克公式，导出普朗克函数拐点光波长的普遍方程，并利用牛顿迭代法求出该光波长方程的 2个根，找到普朗克公式中潜在的另外一个普适常数。

In this paper, a hybrid optical-digital system is presented to solve a set of linear equations in iterative fashion.

本文提出一种用于迭代法求解线性方程组的光电混合系统。

The relationships between the intensity of gamma-radiation and radi- oactive elements content of ore bed have proposed,and made an exhaustive analysis of the various methods solving the uranium content(iteration, inverse matrix and the decomposition suggested by author).

文中提出了比较完整的伽玛强度与矿层中放射性元素含量的关系式，对求解铀含量的各种方法(迭代法、逆阵法和作者提出的分解法)作了详尽的分析，列举了不同类型铀矿床伽玛测井实际资料的电算对比结果。

By the improved algorithm of exploring iterative interpolation method, the pre-estimate formula in the form of 2-order differential equation have been replaced by pre-estimate formula in the form of 1-order differential equation, confirm the u monotony accession strictly. It could avoid the interpolation direction converse and oscillation.

算法采用改进的探索迭代法实现，用一阶差分预估器代替二阶差分预估位置点的偏差器，保证曲线参数u的严格单调增加，以消除插补方向反转和振荡现象。

According to the results obtained by chemical analysis of phase and metallographic examination, a mathematic mode of the relation between the content of aluminum inclusion and relative frequency of abnormal spark signal has been established.

采用迭代法确定夹杂物定量分析的重要参数－阈值，提出钢中铝夹杂物定量分析新方法，结合化学相分析结果以及金相检测结果最终得到参考物样品中铝夹杂物的含量与火花频数的数学模型。

Secondly, to analyze seismic response of the concrete gravity dam, subspace iterative method was applied to compute free vibration period of the dam, time integration method was builtup for the seismic time history analysis and formulation of coupled vibration of reservoir water and dam were also deduced.

其次，针对混凝土重力坝的地震响应分析问题，采用子空间迭代法计算了大坝的自振周期，建立了地震时程分析的逐步积分方法，并且推导了库水和坝体耦合振动的理论公式。

Moreover the vibration frequencies of the plate are comput-ed using iterative method, which begins with the in vacuo eigenfrequency and continues until in-water eigenfrequency con-verges.

从真空中模态特征频率出发用迭代法直到水中频率收敛为止而得到水中方板的特征频率，进而计算了方板的棤态辐射效率。

For solving the singular linear equations,we present the iterative methods based on proper splittings and give the convergence analysis.

在奇异线性方程组的求解方法中，我们提出了基于正则分裂的二级迭代法并给出收敛分析；在论文的第三章我们对奇异的结构化矩阵的置换秩进行了研究，得到了一些结论并给出了应用。

Compared with the qp function in Optimization toolbox in Matlab software, the iterative method has good efficiency.

与Matlab软件优化工具箱中的qp函数比较，迭代法有明显的效果。

To compute the solution to the nonlinear equation of pressure in the Riemann problem for the pressure grdient equations, the Godunov scheme gives a reasonable approximate value for the exact solution. By using the Newton-Ruphson iteration method and some necessary computation, we get the inter-cell numerical flux directly.

为求压差方程黎曼问题中关于压力的非线性方程的解，Godunov格式给出一个合理的初始近似值，利用Newton迭代法和一些必要的计算得到格式中的数值流。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。