查询词典 models

Presently static equilibrium models are the main numerical weather forecasting models .

静力平衡模式是目前数值天气预报的主要模式。

In this dissertation , the methods of prediction and parameters\' estimation based on stationary multivariate autoregressive models AR(p are studied systematically. Some properties of these methods are formulized.In the first part, it introduce some basal conceptions about multidimensional stationary time series, contained the estimation and property of mean vector and auto-covariance function. Then the stable condition of multidimensional AR models are discussed.

本文主要研究了多维平稳序列自回归模型AR的参数估计及其相关的统计性质，具体内容如下：第一部分，介绍了多维平稳时间序列及其均值向量和协方差阵函数的概念，并引入了多维AR模型及其数字特征，在此基础上给出了模型的平稳性条件。

3D control of micropositioning, the environment for human-computer interaction based on the micro stereo image displaying, and microinjection are three focuses of this dissertation.The imaging models of CMO micro stereoscope and G micro stereoscope used in microvision subsystem are deduced. According to the imaging models, 3D visual servoing model based on image for micropositioning is set up. The technology of tracking and matching on the feature of image, which are relevant in visual servoing, is studied. Two arithmetic for avoiding obstacles, rolling/surrounding and curved tracking based on the depth first search, are further discussed.

在此基础上，对三维微定位控制技术、基于显微立体图像显示的人机交互操纵环境和微量注射等三个内容进行了重点研究：为了解决3D微定位问题，推导了显微视觉分系统采用的CMO型和G型体视显微镜光学成像模型，在此基础上建立了基于图像的3D显微视觉伺服定位控制模型，对视觉伺服中涉及的实时跟踪与立体匹配技术进行了研究，并进一步探讨了卷包裹法和曲线跟踪两种避障算法。

It is useful for us to understand and apply models from the view of statistical dependence and stochastic comparison to study multivariate models.

从统计相依与随机比较的角度来研究多维模型，有利于人们更好把握与应用模型。

Finally, we apply the factor analysis of the interest rate risk factors that change the yield curve of bond. Based on the comparison of the static models and stochastic models, we bring forward a dynamic stochastic risk management model of interest rate. In addition to this, we conduct an empirical examination of the management of risk immunized bond portfolios.

最后，本文运用因素分析法对影响债券市场收益率曲线的利率风险因素进行了分析，然后在比较利率风险管理静态模型和随机模型的基础上提出了一个动态随机利率风险管理模型，并且针对债券市场利率风险免疫的债券组合管理进行了应用研究。

The most important human resource management models are the Harvard, Guest, and Storey models.

重要的人力资源管理模式有哈佛模式、盖斯特模式和斯托瑞模式。

Eight models were constructed and divided into two groups by different cement thickness. In each group, there were two stems with high and low flare that implanted in both normal and stovepipe canal models respectively.

本研究藉由8 种模型以同骨水厚分为2 组，2 组分别将low flare 与high flare 骨柄分别植入正常与烟囱型股骨髓腔。

The numerical examples show that the three models stated above for the dynamic analysis of strap-on rocket and the dynamic re-analysis scheme for semi-analytical finite elements are reasonable, feasible and quite effective, the models presented can be used to obtain more accurate vibration modes including the modes missed in the multibeam approximation.

本论文给出的一些计算实例表明：对于捆绑式火箭的上述三种计算模型以及回转壳的动力分析的重分析修正方案是合理、可行的，也是有效的。

The concept of form feature and form feature line in terms of describing the automobile form was introduced based on the 100 digital models of automobile.20 form feature lines was captured from the 100 digital models,and sorted into three classes: the main feature line,the transition feature line,and the subjoin feature line.

在构建100个汽车造型数字模型的基础上，引入特征的概念对汽车造型进行描述，提取了20条汽车造型特征线，将其分类为主特征线、过渡特征线和附加特征线，建立了基于特征和特征线的汽车造型描述模型。

As the beginning of this thesis, the important meanings of sea ice to global climate change and ocean engineering in polar and subpolar sea regions are explained firstly. Then, it is pointed out that sea ice numerical modelling, as a powerful tool of sea ice research, is limited by the precision of parameters within models instead of itself so far. It is meaningful to study the important parameters of sea ice dynamics by means of the rapidly developing digital imaging techniques so as to provide better input parameters needed in numerical models.

文中首先阐述了海冰对全球气候变化和极区、亚极区海域海洋工程问题的重要性，并指出作为海冰研究重要手段之一的海冰数值模拟发展到目前，其准确性更加受到海冰参数而非模式本身的限制，因此以目前快速发展的数字图像技术为工具对海冰动力学过程中的重要参数进行研究，以提供数值模式所需要的高精度和准确性的数据，是非常有必要的。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。