给出了利用演化计算方法求解河流水质多参数反问题的一种新方法。
A new approach based on evolutionary algorithm for inverse problem of parameter identification for water quality model is proposed.
本文根据常微分方程参数反问题的数学理论，将正交化方法同有限差分法结合用于确定水质模型参数，并与正则化方法、最速下降法和共轭梯度法作了比较。
The comparison of the calculation results show that orthogonal rule method is fast, simple and reliable, and is applicable to the calculation of the water quality modeling parameters.
本文是在MPI网络并行环境中，将求解二维热物性方程参数的反问题用正则化方法结合并行遗传算法进行数值求解。
This thesis focuses on determination of parameters in a two-dimension heat conduction equation on the MPI network parallel environment, by solving an inverse problem using the regularization method.
载荷识别与系统参数辨识、动力特性修改等都属于振动的反问题。
Loading identification, like the system parameter identification and dynamic characteristics modification, is an inverse problem of structural vibration.
提出一种求解流体力学参数控制反问题的新思路——控制论方法。
The cybernetics method for solving parameter control inverse problems of engineering fluid mechanics is presented in the paper.
基于反问题中的模型参数辩识理论，通过人工神经网络，建立了考虑应力路径影响的粘土的神经网络本构模型。
Based on the model parameter identification theory in inverse problem, a neural network model for constitutive law of clay under multiple stress paths is set up through artificial neural network.
给出了一种利用演化计算方法求解微分方程中的参数识别类型反问题的方法。
A general approach based on evolutionary algorithms to inverse parameter identification problems of PDEs is introduced.
应用特征方程反问题的直接方法对舵面-液压伺服机构连接刚度参数进行了辨识。
The parameter identification of joining stiffness of rudder hydraulic servo mechanism can be done by using the direct method of characteristic equation anti problem.
文章给出了利用模拟退火算法求解一类扩散方程的参数算子识别反问题的一种新方法。
In this paper, a new approach, which is based on simulated annealing algorithm for solving a class of diffusion equation of parameter operator identification of inverse problem, is presented.
作为结构动力学分析的一个反问题，本文研究为使系统的动力特性满足设计要求如何进行结构参数设计的问题。
As a converse problem of the dynamic analysis of structures, the design of structure parameters to meet the requirements of the prescribed dynamic characteristics is studied in the paper.
参数识别反问题是偏微分方程反问题的一类，也是在自然科学与工程技术的各领域比较常见的问题。
Parameter identification problems belong to the partial differential equations inverse problems. They are also common in the field of natural science and engineering.
本文针对求解二维波动方程的参数问题，利用有限元方法把波动方程反问题转化为有限元反问题，并利用脉冲谱技术，即一个迭代过程进行求解。
In this paper, for solving the parameter problem of two dimensional wave equation, the method of Finite Element and the Pulse Spectrum Technique, i. e. the iterative process are used.
给出了一种利用演化计算方法求解微分方程中的参数识别类型反问题的方法。
We presented a general methodology based on evolutionary algorithms (EAs) for the parameter estimation of inverse problems.
对于二维反问题，反演参数较多，神经网络反演运用较少。
As to 2_d inverse problems, NN inversion is hardly used because of a large number of parameters.
构造反演（反问题）是指利用地层变形形态反推使之变形的断层的几何参数；
The method of fault geometrical parameter that to bring about tectonic deformation through known deformation characteristic is go by the name of structure inversion.
构造反演（反问题）是指利用地层变形形态反推使之变形的断层的几何参数；
The method of fault geometrical parameter that to bring about tectonic deformation through known deformation characteristic is go by the name of structure inversion.
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