查询词典 error model

Then, it studies the supply chain management system as a complex system to confirm the state existing during operating of the system. After that, it conducts a probability analysis on the state which the system located by applying supplement variable method, and establishes the model of distributed parameter system in a form of partial differential equations. Combining C0 ? semigroup theory in the functional analysis, it conducts a dynamic analysis on the established mathematical model. Using this method, it obtains the mathematical expression of the dynamic solution and the steady state solution, and proves the uniqueness, non-negativity and the asymptotic stability of the system solution. This dissertation applies the Matlab tool and uses two-step, three-step Simpson integral equation to imitate the condition of system solution. Then, it adds possible mode of failure and the optimization adjustment state to the system, based on which it has established the distributed parameter system model which is described by partial differential system of equations. Combining the functional analysis C0 ? semigroup theory, it studies the established mathematical model, and obtains the mathematical expression of the dynamic solution system and the steady state solution. It has proven the existing of uniqueness of the system solution, the asymptotic stability of system solution and the system solution. In addition, it has lying the theory rationale for further analysis and the research on the optimization of system.

本文首先简要综述了供应链理论、可靠性研究、鲁棒性研究以及供应链鲁棒性研究的现状；然后，将供应链系统作为一个复杂系统来分析，确定了系统运行过程中所经历的状态，通过引入补充变量的方法，建立了用偏微分方程组描述的分布参数系统模型，用泛函分析中的C_0 -半群理论得到了系统动态解和稳态解的数学表达式，证明了系统解存在的唯一性、非负性和指数阶渐近稳定性；并借助Matlab工具，利用二阶、三阶辛普森积分方程模拟系统解的性态，并给出系统动态解的仿真图；本文又对上述系统增加了系统可能失效状态和优化调整状态，并在此基础上建立了用偏微分方程组描述的分布参数系统模型，同样用泛函分析中的C_0 -半群理论对所建立的数学模型进行了研究，得到系统动态解和稳态解的数学表达式，证明了系统动态解存在的唯一性、非负性及渐近稳定性，为进一步分析和研究供应链优化奠定了理论基础。

The hyperbolic-type nonlinear model and rigid and perfectly-plastic model are usually adopted to simulate the constitutive behavior in tangent direction of contact surface. in fact, however, the hyperbolic-type nonlinear model can not definitely display the plastic flow deformation after shear failure while rigid-perfectly-plastic model can not describe the nonlinear deformation before shear failure.

对于土与结构间接触面的切向本构关系，目前通常采用双曲线非线性弹性模型或刚塑性模型来描述，但是，传统的双曲线非线性模型不能明确地表达剪切破坏后的塑性流动变形特性；而刚塑性模型又无法描述剪切破坏之前的非线性弹性变形。

The analysis adopts a model entitled "the Model of Silt Souring for River and Reservoir ", calculates the model and parameters and establishes the model of disilting the regulating reservoir basedupon the data in 1967. We also analyze the density flow desilting of Fen 1 reservoir in accordance with the data from July 6 to 7, 1977 and the partial data from Guanting reservoir.

本研究采用"河流与水库统一冲淤模型"，利用1967年的实测资料对采用的模型、参数进行了验算，建立了调节水库的泥沙冲淤模型；同时根据汾河水库1977年7月6日～7日的实测异重流资料，参考官厅水库的部分资料，对汾河水库的异重流排沙进行了分析。

Secondly, according to the theory of retrieving model using time series and the self-memorization principle, the grey self-memory model based on grey system theory and phase space self-memory model established using chaotic theory are put forward, and the two kinds of models are applied to the analogy and forecasting of hydrologic time series, and the application field of the self-memory model is further expanded from extent and profundity.

更进一步，根据时间序列反演建模基本理论和系统自记忆性基本原理，提出了基于灰色系统理论的灰色自记忆预报模型和基于混沌理论的相空间自记忆预报模型，并应用于水文时间序列的模拟与预测，从广度和深度上更加拓广了自记忆模型的应用范围。

In three-valued neural networks model, the energy function of two-valued neural networks model can not be applied, so the energy function need to be find for the three -valued neural networks model, and here two kind model algorithms are compared in this paper.

在三值神经网络模型中，二值模型的能量函数不能适用于三值模型，因此需要求解三值模型的能量函数，在此本文对三值神经网络测试生成算法与二值神经网络测试生成算法进行比较。

For inheriting the dynamic constraint information of the multibody simulation model, topological configuration of the multibody simulation model was built, and simplified constraint form was put forward with the topological mapping of the multibody simulation model in the heterogeneous systems. To transform the information of the multibody simulation model, the offset matrix which transformed the location and orientation of constraints and the matrix which transformed the location and orientation of parts were computed.

利用多体动力学仿真模型在异构系统的拓扑映射，建立多体动力学仿真拓扑构型，提出仿真模型动力学约束的约束简型表示法，实现动力学约束信息的关联继承，并通过约束偏置变换矩阵和构件位姿变换矩阵的求取，驱动多体动力学仿真模型构件和约束位姿的自动调整，实现多体动力学仿真模型的动态转化。

A method of the surface combination based on classification or Euler Operation and the computation of the surface boundaries of a surface is offered to finish the geometry mapping of surfaces between half-edge model and the closed_shell branch of manifold surface model. Moreover, the concepts of conformal-shape geometrical mapping and topological mapping are given. The bi-directional conformal-shape topological mapping between half-edge model and the closed_shell branch of manifold surface model is proved.

提出了一种基于等价分类和欧拉操作的面片合成和曲面边界计算方法，完成了半边模型到流形曲面模型closed shell枝的曲面几何映射；给出了保形几何和保形拓扑映射概念，证明了半边模型到流形曲面模型的closed_shell分枝的双向保形拓扑映射。

The Pinyin model is Trigram that adds up same voice data in language model and it is a new link between original acoustic and language model.It can be used to obtain probability of interrelated Pinyin string.The results in experiments show that by using the model to make final process of the recognition of acoustic layer,the recognition rate of the top one can be increased 13 percent,and the rate of the front fine is similar with the...

拼音模型是累加语言模型中同音字的相关数据后得到的 3元模型，是在原来的声学模型和语言模型之间增加的一个新环节，可用来求取相关拼音串的先验概率，实验结果表明，用它作为声学层识别的后处理，可使第 1名的识别率提高 13个百分点，可使前 5名的识别率与原来声学模型输出前 10名的识别率相当

This paper adopts Hidden Markov Model in part-of-speech tagging for English texts.Firstly the authors intro-duce the improvement on Viterbi algorithm and the step in training computer by means of hidden Markov model.Sec-ondly,through a series of contrast experiments the authors come to the conclusions:The Bigram model is better than the Trigram model in terms of the performance-cost ratio.

利用隐马尔可夫模型对英语文本进行词性标注，首先介绍了对Viterbi算法的改进和基于HMM模型方法训练机器的步骤，然后通过一系列对比实验，得出两个结论：二元文法模型的"性能价格比"较三元文法模型更令人满意；词性标注集的个数对词性标注的准确率有影响。

Based on dynamic test data, using curve fitting and optimum method, three dynamic empirical model are developed according to the principle of minimizing errors, they are trilinear hysteresis model, variable linear hysteresis model and variable nonlinear hysteresis model.

对系统辩识模型作出了改进，把准静态特性的幂函数乘积模型与辩识模型相结合，形成了制动器的理论分析模型。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。