查询词典 model theory

On the base of these work, the theory and technique which deal with ecological modeling, two-dimension ecological dynamic model and stochastic eutrophication model was researched thoroughly.

在此基础上，较为深入地研究了富营养化生态模型、二维生态动力学模型、随机富营养化模型和面污染模型所涉及的理论和技术问题。

Based on the general dynamic programming, in the grey dynamic programming model combined with the grey theory, the runoff is described by the interval grey numbers. The model is combined by the advantages of determinant/stochastic dynamic programming methods, it will be a new idea for the reservoir operation.

利用区间灰数描述径流，在普通动态规划的基础上融合了灰理论的灰色动态规划模型，综合了确定型动态规划方法和随机型动态规划方法的优点，为水库调度的动态规划应用研究提供了新的思路。

Following the constraint of AMFI on the SGS stress model, a non-linear SGS stress model is developed, based on the tensor algebra and Taylor expansion theory, in terms of resolvable strain rate tensor and rotation tensor.

根据旋转湍流SGS模型的建模规则，利用张量代数和Taylor近似理论发展了一种由大涡应变率和旋转张量构成的非线性SGS应力模型，并满足AMFI条件。

In this paper, the theory of artificial neural network is summarized; the analyse on BP neural network model is put stress on. For the predominance of artificial neural network"s dealing with non-linear complicated relation, the technology of artificial neural network is introduced into the evaluation of the highway bridge"s carrying capacity; and the preferences , the collection and disposal of stylebook, the structuring of BP neural network model are analyzed.

文中对人工神经元网络理论进行了综述，重点对神经元网络的BP算法进行了分析，利用人工神经元网络处理非线性复杂关系的优势，将人工神经元网络技术引入到公路桥梁承载力评估中；并对其中的参数选择、样本收集与处理、构造BP网络模型等进行了分析。

Different from traditional system protection models, such as access control matrix model, this theory describes the operations in system by functions of random variable vectors, build an analysis model of trusted system with three axioms, and analyze the information flow in the system by tracing the operation sequence of the system.

与访问控制矩阵模型等传统的保护系统模型不同，这一理论用随机变量向量的函数来描述系统操作，基于三条公设建立了可信系统的分析模型，并通过对系统操作序列的跟踪来分析系统中的信息流。

Based on the heat and moisture transfer theory, establishes the quasi three-dimensional and simplified model of heat and mass transfer between air, tailrace water and surface of tailrace tunnel using the lumped parameter model.

在水－空气热湿交换理论的基础上，采用集总参数法建立了无压尾水洞引风过程空气与尾水及洞壁面之间进行热湿交换的准三维数值模型及其简化模型。

In this thesis, a circadian oscillation model is studied from the point of view of theoretical analysis. The circadian oscillation model is analyzed using the theory of delay differential equations.

本文从理论分析的角度出发，运用时滞微分方程的相关理论，对昼夜节律模型做了一定的理论分析。

First the dynamical game model is created for them. Then the optimal solution of the model is given by the theory of differential games.

首先建立两国的动态博弈模型，然后利用微分对策理论分析模型的均衡解。

In this paper, we analyze and handle total online time of the users for 163, 169, 2163 in Tianjin. We use the basic theory of time series to model with the traffic and then forecast on the model.

分析了天津市163，169，2163的拨号上网业务在线总时长，应用时间序列分析的方法对网络业务进行分析，并在模型基础上进行准确的预报。

In the basis of that, the autoregressive model, which is very mature in the theory of linear time series, was used for establishing the future cash dividend predicted model. Parameters were estimated by computer simulation.

在这个基础上，本文利用线性时间序列理论上十分成熟的自回归模型建立了未来现金股利的预报模型，并通过计算机模拟技术对参数进行了估算。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。