迭代法

The method of Newton iteration extended on kristjan to solve the match between the sample points and design model in checking surface is present.

提出基于kristjan法扩展的牛顿迭代算法来解决曲面检测问题中的采样测量点与设计模型的匹配问题。

Rosen projective gradient method is used to find the approximated KKT points of relaxed problem, and then the index set is updated until the minimal solution is .

本文采用Rosen 投影梯度法求此松弛问题的近似KKT点，然后更新指标集不断迭代直至得到最优解。

In the algorithm, radial-basis function neural network was utilized as forward model, and genetic algorithm was used to solve the optimization problem in the inverse problem, which can avoid the local minimum solution possibly encountered in the iterative inverse algorithm based on gradient descent and consequently achieve the global optimized solution of the inverse problem.

在该算法中，径向基函数神经网络用作前向模型，遗传算法用于求解逆问题中的优化问题，其优点是能够避免基于梯度下降法的迭代逆算法中可能遇到的局部最小问题，并能得到逆问题的全局最优解。

Establish the steady-state and transient model using the three hydrodynamics equations (Continuity equation, Momentum equation and Energy equation). By comparing different state equation, it selects the BWRS state equation which is considered the most accurate state equation in current natural gas measurement. It calculates compression factor, density and other Thermal parameters based on BWRS state equation. In Numerical solution of the steady-state and transient model, compression factor, friction coefficient and all the other Thermal parameters are recalculated in each small time step to reduce the numerical calculation error.

在稳态模型的建立上，利用流体力学三大方程(连续性方程、运动方程和能量方程)，通过比较不同的状态方程选用了目前被认为最精确的用于天然气计量的BWRS状态方程，并以此方程为基础进行压缩因子、密度等热物性参数的计算；在稳态模型的求解上，选用容易计算，精度较高的标准型龙格—库塔(Runge-Kutta)法进行数值求解，并且在迭代过程的每一小步都重新计算燃气的压缩因子，摩阻系数等所有的计算参数，以减少数值计算的误差。

The fractal geometry can simulate natural objects such as clouds,mountains more efficiently than conventional Euclidean geometry.

对分形自然景物模拟中的随机中点位移法和分形插值算法进行了回顾和分析，给出了基于Diamond-Square算法的山峰纹理图和蓝天白云的详细设计和迭代实现过程。

An optimization method for large scale problems which combines Newton method and Interated-Subspace method is proposed.

结合牛顿法与子空间迭代的思想，给出了一种求解大型优化问题的方法。

Newton's method, no conditions iterative control!

牛顿法计算程序，迭代没有条件控制！

OKA method may initial with any set of flows that satisfies conservation of flow, thus the algorithm is particularly useful for large-scale system.

OKA法只需要一个初始相容流，且不必是可行流，使得初始迭代点的确定简化。这对求解复杂系统具有明显优势。

Use of the best domain value method, iterative cycle operation to achieve the purpose of image segmentation.

利用最佳域值法，迭代循环运算达到图像分割的目的。

Use of the best domain value method, iterative cycle operation to achieve t...

利用最佳域值法，迭代循环运算达到图像分割的目的。

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。