查询词典 dynamic system

Based on dual variable principle, a symplectic algorithm for solving optimal control problem of nonlinear dynamic system was proposed.

基于对偶变量变分原理提出了求解非线性动力学系统最优控制问题的一种保辛数值方法。

We define differential dynamic system on the tangent bundle and the master bundle.

定义了建立在切丛和主丛上的微分动力系统。

The contribution of this study is to develop a dynamic system model of balanced scorecard from the viewpoint of long term and short term, hypothesis and testification as well as fransformation and adjustability.

四、本研究的结果有助於个案图书馆发展出一个兼顾长期与短期、假设与验证、发展与微调的动态平衡计分卡管理系统。

A method of stock price prediction is presented by hypothesis of stock market being non-linear dynamic system and analyzing method of chaos theory for chaos time series in this paper.

根据股票市场是非线性动力系统的假设，利用混沌理论对混沌时间序列的分析方法，提出了股票价格预测方法。

The phase space reconstruction theory of chaotic dynamic system, in combination of the non-linear reflecting and pan-capacity of neural network, can be used to establish the prediction model; and a kind of new prediction method is suggested to realize the complete tracing of phase point evolution process and to predict "the price nails", whereby improving the prediction accurateness and effectively solving the problem of negative prediction, with the satisfactory results obtained.

采用混沌理论预测系统边际电价针对我国电力市场电价变化特点，利用电价和负荷时间序列的混沌特性，重构准确的电价序列相空间，通过跟踪相空间相邻相点的演化趋势，建立基于快速BP网络的电价预测模型，对我国川渝电网电价进行预测，取得良好效果利用混沌动力系统的相空间重构理论，结合神经网络的非线性映射和泛化能力建立预测模型，提出一种新的预测方法实现了相点演化过程的全局跟踪，对"价格钉"进行预测，提高了预测精度，有效解决了负预测问题，得到满意的结果。

Stock market is a complicated non-linear dynamic system. It is very difficult to open out it's inherent rules using traditionary timing prediction technique. First, I will develop a new method, which is upon the support vector machine, to solve the problem in the aspect of forecasting the stock price.

股票市场是一个复杂的非线性动态系统，利用传统的时间序列预测技术很难揭示其内在的规律，为了更好的对股票市场的价格规律进行分析，本文在支持向量机理论的基础上推导新的方法来适合股票价格预测的应用。

The nonlinear dynamic system with quadratic and cubic nonlinearities is obtained by applying mathematical transformation to the equation.

基於Karman方程的动态比拟，运用Galerkin法，选用合适的正交函数将控制薄板振动的偏微分方程离散化为常微分方程，得到一带有平方和立方非线性的参数激励和外激励联合作用的非线性动力学系统。

To improve the performances of dynamic system identification, a new method to formulate scaling kernel function for support vector machine was proposed.

为了提高非线性动态系统辨识质量，提出了新的支持向量机尺度核函数构造方法。

Biological dynamic system; Degenerate equilibrium; Generalized normal sector; Periodic solution; Bifurcation; Versal unfolding

基础科学，数学，动力系统理论生物动力系统；退化奇点；广义正常区域；周期解；分岔；普适开折

ANN is an artificial nonlinear dynamic system based on the recognition of cerebra neural network theory.

如何找一个精确的预测模型也是物流行业人士一直追求的目标。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。