基于CCD的二维条形码检测系统

为解决条形码污损的产品流入市场的问题,提出了在产品包装前对条形码进行检测、 比对和排除问题的系统方案,采用高速CCD读码,以JAVA实现译码,用Excel VBA完成信息 比对和问题处理。以QR二维条形码为检测对象,详细阐述了系统的硬件架构和软件开发过程 。测试结果表明,系统具有投入低、实用性强的特点。     

A re-examination of the impacts of macroeconomic and financial shocks on real exchange rate fluctuation: evidence from G7 and Asian countries

ABSTRACT

This paper aims to investigate the sources of real exchange rate fluctuation by utilizing sign restrictions in structural vector autoregressive (SVAR) method. Under an agnostic identification scheme, the empirical results show that the delayed overshooting puzzle still exists in response to monetary shock even if price puzzle is ruled out by construction. In contrast, all countries experience a significant initial real depreciation, and then gradually appreciate in response to currency risk premium (CRP) shock. This finding is consistent with Dornbusch’s overshooting model. In addition, I examine the importance of investors’ expectations in determining the short-term variations in the real exchange rate. The results indicate that the CRP and expectation shocks obviously outperformed the demand, supply and monetary shocks in terms of explaining the real exchange rate fluctuation.     

基于标记位的低密度格码整形方案

为解决低密度格码（LDLC）编码后码字不能适用于功率受限信道的问题,提出了一种基于标记位的LDLC码整形算法。该算法结合标记位整形思想,针对LDLC码的特点,通过最小和算法求解出平均功率最小的信息序列。分析并仿真了整形前后信息功率的变化及取得的整形增益。实验结果显示：整形后的码字功率明显小于整形前的功率,可达到0.53 dB的整形增益,同时该整形算法接收端逆整形简单。     

Lax money supply under globalization and detecting an early sign to anticipate deep recession

This article uncovers a macroeconomic threshold for avoiding deep recession under globalization. The analysis shows that there is a long-run natural rate of substitution between the broadest measure of money balances and nominal government spending, namely the natural fiscal velocity. Applying this threshold to the actual economy can give us two benefits: first, comparing the actual rate of substitution between the broadest measure of money balances and nominal government spending with the natural fiscal velocity can provide an early sign to anticipate deep recession under globalization. Second, controlling the actual fiscal velocity so as not to exceed the natural one is such a macro calibration that the authorities can easily justify their pre-emptive actions as a means of avoiding a deep recession trap under globalization.     

Macroeconomic shocks and the forward yield curve: how important is monetary policy?

The associations between macroeconomic fluctuations and the yield curve tend to be explained by the reactions of the monetary authority. This paper evaluates how macroeconomics shocks affect the forward yield curve for domestic and foreign debt markets in Venezuela, where monetary policy is not the main source of macroeconomic fluctuations. As previous results in the literature, macroeconomic shocks affect more strongly the short end of the yield curve in the expected direction. Overall, supply shocks explain most of the variability of long-term yields, spread and volatility. Nonetheless, short-term yield movements can be associated with general monetary conditions of the economy and not necessarily with monetary policy actions.     

向莆铁路抚州站地域性设计探索

抚州站位于江西省抚州市,是向莆铁路上主要的客运站之一。本文结合抚州站新建工程,尝试就中小型铁路客站设计的地域性表达进行探讨。     

Linguistics and Economics: Is Entrepreneurship Innate?

One of the great scientific achievements of the second half of the twentieth century was the advance in linguistics. Noam Chomsky was one of its foremost exponents. Chomsky and his followers claim that human beings have an inbuilt ‘language acquisition device’ which allows children to acquire language with extraordinary ease. Language is as much part of human nature as flying is that of birds. This paper argues that, like language, the propensity to trade is an inbuilt characteristic of human beings. Language permeates all human faculties including the ability to plan for the future. As a result human economic activity shares many important features with language, in particular its recursive and unbounded character. There is also evidence that the concept of property is innate. It follows that attempts to frustrate or limit the exercise of property rights and their use in trade works against the grain of human nature. Limits on the natural expression of entrepreneurship may be as damaging as other constraints on human flourishing.     

通过汉德语言对比探讨德语教学策略

从对比语言学角度分析汉语对中国学生在德语学习过程中的影响,并探讨德语教学中应注重的方法与策略。     

语言学与语言教育

语言学理论对语言教学起着载体,输送手段及指导作用。文章通过论证二者的关系入手,主要讨论前者对后者的影响并通过分析讨论,总结了语言学理论与教育的关系和相互作用的主要方面。     

新技术企业知识型员工智能评价指标体系设计

文章首先对知识型员工的概念、特点进行了分析。然后针对我国新技术企业知识员工的特点，设立了一套评价知识型员工智力能力及成长状况的评价指标体系，并指出各指标的作用。最后，文章阐述了我国新技术企业对知识型员工的管理与激励方式。