基于GSM模块和ARM的智能家庭环境安全监控系统设计

鉴于当今工作人群因生活节奏加快和工作负荷增加等原因造成住宅长期无人留守,室内环境状况及其可能引发的安全事故无法及时获取,本文设计了一种基于GSM模块和微控制器的远程家庭智能环境监控系统。系统将家庭常用的环境调节设备及传感报警装置以微控制器为核心进行连接组网,应用GSM模块通过移动网络以短信的形式与住户相沟通。整个过程方便、快捷、经济,适于各类人群。     

历届中国共产党全国代表大会党章总纲的演变

中国共产党的历届全国代表大会几乎都对党章总纲进行了修改。党章总纲的发展史,基本上 就是党章建设史。探讨党章总纲内容的修改过程,对党章和党的建设有着重大的理论和现实意义。     

旅游手册英译的顺应论视角

把顺应论用于旅游手册的英译,探讨其在旅游手册翻译中的指导作用及翻译过程中顺应性翻译的一些要求。旨在说明旅游手册翻译应该是以实现宣传为最终目的的动态的顺应性翻译,应该注意在译文中对预设信息、词语选择和语言结构等方面做相应的顺应性调整,以吸引潜在游客,取得理想的效果。     

Exact rational expectations,cointegration, and reduced rank regression

We interpret the linear relations from exact rational expectations models as restrictions on the parameters of the statistical model called the cointegrated vector autoregressive model for non-stationary variables. We then show how reduced rank regression [Anderson, T.W., 1951. Estimating linear restrictions on regression coefficients for multivariate normal distributions. Ann. Math. Statist. 22, 327–351] plays an important role in the calculation of maximum likelihood estimators of the restricted parameters.     

基于SST89E54RD单片机的MONITOR-51仿真器设计

SST公司推出的SST89E／V5xRDx系列单片机及其配套软件与Keil C51集成开发软件相结合。是实现低成本、强功能的硬件仿真调试MCS51系列单片机的手段，除串行接口和定时器／计数器2外。可实现专业仿真器的大多数功能。具有很高的实用价值．     

参数绘图的数据传递方法及其程序设计研究

通过采用混合编程方法并利用接口数据，Ｃ应用程序能够直接调用已有ＦＯＲＴＲＡＮ子例程生成的样板图来实现参数绘图。文中着重论述了入口数据、文件和内存等三种参数传递方法的原理，给出了相应的程序流程。最后，分析了Ｗｉｎｄｏｗｓ环境下Ｃ应用程序调用ＦＯＲＴＲＡＮ子例程的几种方法。     

基于3C的科技企业孵化器绩效评价实证分析

为了使基于3C的科技企业孵化器绩效评价能够得到迅速的应用与推广,有必要检验并论证该理论与方法的系统性、科学性和有效性。文中实证分析的对象是长三角地区的10个TB I,在对其现状分析的基础上,构建了目标TB I绩效评价人力资源管理委员会,并由该委员会基于本地区及待测TB I的具体特征建立了TB I绩效评价指标体系;实施了待测TB I的数据采集、实际测评及其评价结果分析;给出了基于3C的TB I绩效评价的宏观政策及具体推进建议。     

Reduced-rank regression: A useful determinant identity

We formulate an identity for the determinant of a product involving rectangular matrices. The identity can be used to derive the maximum likelihood estimator in reduced-rank regressions with Gaussian innovations. Furthermore, the identity sheds light on the structure of the estimation problem that arises when the reduced-rank parameters are subject to additional constraints.     

Using HP Filtered Data for Econometric Analysis: Some Evidence from Monte Carlo Simulations

Summary: The Hodrick-Prescott (HP) filter has become a widely used tool for detrending integrated time series. Even if the methodological literature sums up an extensive catalogue of severe criticism against an econometric analysis of HP filtered data, the original Hodrick and Prescott (1980, 1997) suggestion to measure the strength of association between economic variables by a regression analysis of corresponding HP filtered time series appears to be very popular. This might be justified if HP induced distortions were quantitatively negligible in empirical applications. However, the simulated regression analyses presented in our paper demonstrate that any attempts of inference based on HP prefiltered series are challenged by a serious risk of spurious regression results. We would like to thank the participants of the Fourth Workshop in Macroeconometrics at the Halle Institute for Economic Research for their comments on a preliminary version of this paper. We are also indebted to the participants of the Thirtieth Macromodels International Conference, in particular David Hendry, S?ren Johansen, Katarina Juselius and Helmut Lütkepohl, for stimulating discussions and fruitful suggestions which helped to improve our paper. Finally, Larry Arnoldy helped to improve the final version of the paper.     

A Class of Two-Stage Selection Procedures Using L-Statistics

Summary: A class of selection procedures for selecting the least dispersive distribution from k available distributions has been proposed. This problem finds applications in reliability and engineering. In engineering, for example, the goal of the experimenter is to select a firm whose components have least dispersive distribution from the available set of competing firms manufacturing the components of the desired specifications meant for the same purpose. The proposed procedures can be used even when the underlying distributions belong to different families. Applications of the proposed selection procedures are discussed by taking exponential, gamma and Lehmann type distributions. Performance of the proposed selection procedures is assessed through simulation study. Implementation of the proposed selection procedure is illustrated through an example. * The authors are very grateful to the editor and referees for their valuable comments.