查询词典 model theory

In addition, the paper give a minuted escription about the two main element--cash flow and the discount ratio of the model .so can know how to apply the model further in enterprise evaluation, of course,any theory including cash flow model is comparative when looked as perfect and the best theory, This approach has many dificult point also when use the model appraise the value of enterprise.

并对这个模型的两大基本要素现金流量和折现率进行了详尽的分析，以便更明确如何运用此模型。当然，任何理论说其比较完整、具有理论意义都是相对而言的，折现现金流量模型也不例外，采用折现现金流量法评估企业价值也存在着难点，此论文对其进行了探讨，使企业价值能更好的得到体现。

At present, there are many diagnostic model of the evaporation duct, such as P-J model, MGB model, NPS model and Babin model etc. They are based on Monin-Obukhov similar theory, just it is different that confirms the flux and character scale in the surface layer. These models are only applied for the normality and homosphere in open sea without considering the alongshore effect.

目前国内外蒸发波导诊断模式有P-J模式、MGB模式、NPS模式、Babin模式等，但其基本原理都是依赖Monin-Obukhov相似理论，只是用于确定近地层通量的和特征尺度的方法不同，且仅适用于定常和水平均匀的开阔海域，并没有考虑到蒸发波导的近岸效应。

A Foundation Model - the Graded Component Object Model of Product Family is offered on the analysis of knowledge characteristics of PFM. Then, the component object, the Conjunctional Hiberarchy Model of Product and the relationships among component objects are defined respectively. Whereafter, the rapid generating mechanism of the instances of component objects and product is introduced. Based on the theory of GCOM, an Enhanced Model - the Skeleton Model of Product Family is offered.

通过分析产品族模型蕴含知识特性，提出了一种具体的产品族基础模型表达——产品族元件分级对象模型，分别定义了各级元件对象、层次联接结构模型和元件对象关系，并探讨了产品族元件分级对象实例的生成与产品实例快速获取的机制。

On the basis of the researching the neural network theory, presenting the neural network model (N-SearCut model) for searching for minimal cutset of a graph, proving the stability of this model, analyzing the dynamic behavior of this model, deducing a series of corresponding theorems and affording an academic fundaments for solving optimization problem based on this model.

在研究人工神经元网络理论基础之上，提出了搜索图最小割集的神经网络模型——N-SearCut模型，证明了该模型的稳定性，分析了该模型的动态特性，导出了一系列的定理，为运用该模型进行优化问题的求解提供了理论依据。

This paper started with discussion of innovation source, and found the contribution of industrial cluster for technological innovation. In succession, I made a simple depiction of some interrelated theory about industrial cluster technological innovation. Then, I pay more attention about introducing how the industrial cluster played the role of Hatcher, how the relationship between industrial cluster and technological innovation. After studying this, I abstract the model of the enterprises technological innovation in the industrial cluster. I found there were three kinds of model: one is Inner studying model, one is Exterior studying model, and the other is"Indraught- Diffusion- Absorbability"model.

本文开篇以探讨创新源入手，引出了产业集群对技术创新的贡献，接下来在简要的介绍了产业集群的技术创新理论之后，又重点论述了产业集群如何发挥其孵化器的功能、产业集群与技术创新的关联性等方面的问题，引出产业集群中的企业的技术创新模式，主要从集群内部学习型模式、外部学习模式、以及&引进——扩散——吸收&型模式来研究产业集群的创新模式，这些模式各有其优点，并且适用于不同类型的集群企业。

We firstly summarized some nuclear structure models, and then introduce relativistic mean field theory and its application to spherical nuclei. At Last the characteristics of pseudospin symmetry are researched in details. It briefly includes several following aspects:(1) Some nuclear models such as liquid drop model, Fermi gas model, shell model, project shell model and Bohr model are summarized.

本文首先概述了一些主要的原子核结构模型，然后介绍了相对论平均场理论的建立及其对球形核的描述，最后对赝自旋对称性进行了研究，主要包括以下几个方面：一、概述了已经取得很成功的液滴模型、费米气体模型、壳模型、投影壳模型以及玻尔模型等描述原子核结构的理论模型。

Twenty-four hours after the last oral administration, the blood were obtained and used for testing adrenocorticotrophic hormone, cyclic adenosine monophosphate, cyclic guanosine monophosphate, glucose, cholesterol, alanine aminotransferase, urea nitrogen. Results Before taking medicine, model rats' cAMP/cGMP and ACTH were lower than normal rats', and they showed a trend of rise with adding dose. Before taking medicine, model rats' GLU was lower than normal rats'. With adding dose, model rats' GLU increased, however, normal rats' GLU reduced. When taken medium dose white prepared lateral root of aconite, model rats' CHO was higher than normal rats'. Taking medicine made both groups ALT rise, but normal rats' went up more quickly than model rats'. Model rats' BUN was higher than normal rats', and taking low dose or little dose medicine could lead to incline of reduction.

结果 给药前模型组环磷酸腺苷/环磷酸鸟苷和促肾上腺皮质激素低于正常组，随着给药剂量的增加，两者有升高的趋势；给药前模型组血糖低于正常组，随着给药剂量的增加，模型组GLU有升高的趋势，而正常组有下降的趋势；中剂量给药时模型组总胆固醇显著高于正常组；随着给药剂量的增加，2组丙氨酸氨基转移酶均有升高的趋势，且正常组ALT升高的幅度更大；给药前模型组尿素氮高于正常组，低、小剂量给药有降低模型组BUN的趋势。

Main contributions and achievements are as follows:A general non-equilibrium rigorous model for RDP is developed in this thesis. Based on the pseudo-homogenous assumption, two main factors reaction and separation are de-coupled, and an RDP model with the same format as that for a traditional distillation process is established. To solve the model with a large number of algebraic equations, modified M-K equations with tri-diagonal matrix form are developed based on the improved Separation Efficiency Functions, which greatly increases the iteration efficiency. This thesis also develops a general reactive distillation dynamic model. Through splitting of the differential variables based on SEFS, large-scaled differential algebraic equations can be solved with the improved Gear's algorithm which makes the dynamic model suitable for the on-line application. A simulation platform for the control loop design and evaluation of RDP by introducing control system equations into the dynamic model is also developed.A lactic acid purification pilot-scale RDP is investigated.

论文对热点问题——反应精馏过程的建模与优化控制相关技术进行了深入的研究，取得了一系列成果：1、建立了反应精馏过程机理模型，基于拟均相假设，将反应和分离过程进行解耦，推导出反应精馏过程的非平衡级稳态模型和动态模型，通过引入推广的分离效率函数，对模型变量进行了合理划分，显著提高了模型求解效率；将动态模型和控制系统方程结合，建立了反应精馏过程控制系统研究的辅助工具。2、全面分析了乳酸提纯反应精馏新工艺试验装置，利用本文建立的过程机理模型，对该试验装置进行了稳态和动态性能分析及水力学核算；设计和分析了单边质量控制方案，比较了间接和直接物料平衡控制两种方案的控制性能。

First discarding the thought of fitting by AR model, the ARMA model is fitted by a high order MA model using Gevers-Wouters algorithm on the basis of related functions of ARMA model. Then according to the parameters of the fitted MA model, the ARMA model parameter estimation through solving a system of antipathic linear equations using the least squares method is obtained.

首先摈弃传统的拟合到AR模型的思考方法，而是基于ARMA模型的相关函数用Gevers-Wouters算法对ARMA模型拟合到高阶滑动平均模型；然后在拟合的MA模型参数基础上，用最小二乘算法求解一个不相容的线性方程组，从而估计出ARMA模型参数。

It is proved that the model of Hertz, Capon and Lindel"of areidentical to Vakonomic model while the model of H"older, Pars andChaplygin are identical to Chetaev's model. The fact thatVakonomic model and Chetaev's model exist simultanously can betraced back to the early days of non-holonomic mechanics. These twomodels cause two problems the d- and - permutable problems.

论证了Hertz， Capon和Lindel"of的工作与Vakonomic模型相吻合，而H"older， Pars和Chaplygin的工作与Chetaev模型相吻合，Vakonomic模型和Chetaev模型两类模型并存的局面可以追溯到非完整力学发展的初期。1mm说明了伴随两类模型并存的现象而出现的两个问题 d-交换性问题和-交换性问题。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。