协和

This paper collects the data which reflect the population structure and per capita GDP of China from 1978 to 2006, utilizes the econometric analysis method of Johansen cointegration test and vector error correction model, combines the current condition and the result of the model, analyzes the effects of China's population structure on the economic growth and puts forward some suggestions.

郑娜(杭州电子科技大学，浙江杭州310018)摘要：本文搜集了我国1978-2006年的人口结构和人均GDP数据，利用Johansen协整检验和向量误差修正模型的计量经济方法，结合现实情况和模型的结果，分析了我国人口结构对经济增长的影响并提出相关建议。

Using China's data and India's data of 1965~2004,we analyze the long-run equilibrium relationship and the short-run dynamic process among energy consumption,technology and civil economic growth,by establishing VAR models,doing Johansen Cointegration and Vector Error Correction M...

通过检验中国和印度1965~2004年间的实证数据，运用VAR模型、Johansen协整检验和向量误差修正模型等方法，对两国的能源及技术与经济增长的长期关系和短期动态影响进行了比较分析。

within the framework of permanent income hypothesis or life-cycle theory, this paper applies johansen co-integration test, granger causality test and ols regression method in the empirical analysis and comparison of the impacts of stock price and housing price on consumption of china in 1997-2006.the results show that the wealth effects is weak and the effects of housing is larger than that of stock, then corresponding enlightenments are put forward.

文章在持久收入假说或生命周期理论模型的框架下，运用johansen协整检验、granger因果检验和ols回归方法对1997—2006年股价和房价影响我国消费的效应及其大小进行了实证研究和比较分析，结果发现资产的财富效应较弱且房价对消费的效应大于股价的效应，最后提出了相应的启示。

This thesis mainly discuss following issues, Theory and simple expressions for array covariance matrixes are derived when angular spread functions are symmetric distribution functions, i. e. the Uniform distribution, the Gauss distribution, the Laplace distribution and the Von Mises distribution, and a non-symmetric distribution function, i. e. the Gamma distribution. And the relation between the effective signal subspace and the array number, or and the nominal angle of the distributed source, the angular spread, the distributed functions, and the Signal-to-Noise Ratio is gained. The dimension of the effective signal subspace increases with increment of the array number. And it is more obvious to the non-symmetric distribution. The dimension of the effective signal subspace decreases with increment of the nominal angle. And the distributed source is equal to a point source as θ=π/2. The dimension of the effective signal subspace increases with increment of the angular spread.

本论文针对阵列信号处理中广泛存在的分布源现象，主要讨论了以下问题：推导了角度分布函数分别为对称的均匀分布、高斯分布、拉普拉斯分布、Von Mises分布和非对称的伽马分布时，分布源阵列接收信号协方差阵的严格模型和简化模型，得到了单个分布源的有效信号子空间随阵元数、分布源中心角、分布角、角度分布函数和信噪比的变化规律：随着阵元数的增加，对所有角度分布函数的有效信号子空间维数也随着增加，且非对称分布函数的有效信号子空间充满整个空间的可能性更大；随着分布源中心角逐步增加，有效信号子空间维数逐步减小，当θ=π/2时，等价于点源情形；随着分布源分布角逐渐加大，有效信号子空间维数也随之增加，直到有效信号子空间充满整个空间；随着信噪比的增加，有效信号子空间维数有一定程度的减少。

First,by choosing a control function for a local adaptive optimal neighborhood,the filter window is set in the region with similar normals to avoid the problem of shrinkage and over-smoothing.

首先通过自适应选取最优邻域控制函数来将滤波窗口限制在顶点法向量相近的区域，以防止滤波后模型的收缩和过光顺；然后运用协方差矩阵分析的方法，在最优邻域内计算出各采样点的法向量和曲率；最后以采样点滤波参考平面为基准，分别平滑采样点的法向量和位置，即先对采样点的法向量进行多边平滑，然后根据新的法向量来多边平滑输出各采样点的位置偏移量，最后在法向方向上移动该顶点，以达到降噪的目的。

The performance of the proposed method is compared with that of the well-known vector standard filters such as the VMF, progressive switch median filter, scalar median filter ,minimum distance between central sample and scalar median in its neighborhood vector median filter and the basic vector directional filter.

结果表明，DMNVM滤波性能明显优于现有的VMF、递进开关中值滤波、标量中值滤波、与标量中值距离最小向量滤波和方向矢量中值滤波；同近年提出的自适应向量滤波比较，AVMF客观指标平均绝对误差协MAE、均方误差和标准色差分别是DMNVM的1.81、2.59和2.17倍，这说明DMNVM的滤波性能有显著提高。

Firstly, the principal components of the variance matrix are adopted to compute the scale and orientation of tracking target, then the similarity measure and Kalman filter are used to update the tracking window.

首先，采用跟踪窗口内协方差矩阵主分量分析法来计算跟踪目标的方向和尺寸大小；然后，联合相似性度量和卡尔曼滤波器来更新跟踪窗口的大小和方向倾角，使之适应目标的变化。

The key point of the thesis was system's communication. The paper offered a simple and effective communicate method which achieved data communication between computer and PLC. The paper discussed the system how to change data、transfer and rejigger parameter accurately、advert problems in communication process between computer and PLC. This method is applied and innovative. The paper described the TCP protocol and its encapsulated Winsock module and its application for data communication of remote control. User defined protocol is used for data exchanging between the client and the control server.

本文提出了一种简单有效的通信方式实现了计算机通过串口与PLC的本地数据通信，阐述在实现上位机与下位机的通信过程中，如何在上位机进行数据转换、参数正确传递和更改以及实现方法和注意的问题，该方法具有一定的实用性和创新性；基于TCP协议，使用封装组件Winsock进行实时控制的数据交换是远程控制的核心任务，对此文中首先探讨选用TCP协议和Winsock封装组件的理由，详细描述了如何通过Winsock组件进行数据通信以及自定义协议。

The important customer and firm welcoming every come to talk over a cooperation , conspire to develop and build long-term cooperative relation, be that development of science and technology field cause and industry's making prosper make contribution out commonly, we will may be your ideal cooperation buddy , will let us assist together innovative splendidness of hand!

欢迎各大客户和厂商前来洽谈合作，共谋发展和建立长期合作关系，共同为科技领域事业的发展和业界的繁荣做出贡献，我们将会是你理想的合作伙伴，让我们协手共创新的辉煌！

The main research contents are the modeling of price or returns series and correspondent volatility and risk. The main contents of this course include: modeling of single stationary time series and single non-stationary time series, non-linear modeling of single series, cointegration and vector autoregression modeling, etc.

适用于低频和高频数据；分为时域分析、谱域分析和回归分析集中分析方法；主要研究内容为价格或收益序列的建模，以及相应的波动性或风险的建模；主要内容分为单个平稳时间序列的建模、单个非平稳序列的建模、单个序列的非线性建模、协整和向量自回归建模等等。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。