《数学汇编》中的数学问题在中国——兼与古希腊数学思想比较

帕普斯的《数学汇编》是世界数学史中一部承前启后的重要数学著作,它对希腊经典数学问题的研究为后来的数学指出了方向,拓展和预见了许多数学新领域。本文分析了明末至清末近300年间传入的《数学汇编》中的典型问题,探讨了中算家对古希腊传统问题的理解、接受情况。通过比较发现其在中国和在希腊发展的差异,西方由此导致了数学的进化,而中国延续了中算以算为主和重视实用的传统,发展了不严谨的证明方法,在西学的引导下触及到了数学发展的一些理论问题,所有这些为中国进一步接受近代数学奠定了基础。     

跆拳道与武术国际化发展对比研究

中国武术是中华民族宝贵的文化遗产,是我国历史文化宝库中的瑰宝和精粹,它的内容丰富、形式多样,具有独特的魅力,有着悠久的历史,〔1〕由于世界体育文化的发展,以及中国武术自身存在较多问题等因素,一直影响着中国武术整体的发展。相反,韩国跆拳道却在短短的10多年来,在我国以及世界范围发展得却相当的迅速,因此我们有必要对跆拳道在我国及全世界快速发展并壮大的原因进行分析,通过对比及大量文献资料找出其发展的特色,学习和借鉴其发展的经验,从而更好地发展中国武术。     

AN ANALYSIS TOWARDS CULTURAL FACTORS IN ENGLISH AND CHINESE TRANSLATION IN THE MATERIAL FIELD

Language is the carrier of culture,and translation is a cultural information exchanging process in which the connotation of one language is expressed in the other one,namely,translation is not only the process of language exchanging but also the process of culture exchanging.To a great extent,the transform of culture information is restricted by culture factors.Therefore,in order to reappear the original flavor naturally and properly during the process of translation,one must think highly of the fact that culture factors affect translation activities a lot.This thesis transilluminates the culture factors in E/C translation through the translation comparison among the Chinese and English set phrases,idioms,allusions,sayings,and colloquialism;It also tries to analyze the way of cultural information transaction in E/C translation and put forward the opinion to it.     

我国婚约制度立法中的主要问题考量

婚约制度虽属民间习惯法范畴,但于司法实践中亦发生较多基于婚约而产生之民事纠纷。我国目前没有专门婚约方面的立法：本文在比较研究的基础上,针对我国实际现状,对订约主体条件、婚约的解除与撤销、诉讼主体的确认、彩礼归属、损害赔偿责任等婚约制度中的主要问题进行了分析研究。     

结合我国国情提升我国外贸产业的国际竞争力

外贸产业竞争力是一国参与对外贸易产业的整体的竞争力,主要体现在商品生产的比较成本的差异。要提升我国的外贸产业的国际竞争力,应从我国的国情出发,充分发挥我国的生产要素的比较优势,并在促进产业组织的优化升级和技术的升级与创新的同时．合理有效地配置现有资源,有选择地重点提高整体产业的竞争优势,实现比较优势和竞争优势有机的结合。从而有效地提升我国外贸产业国际竞争力。     

脑电信号非线性分析的人体生理学与解剖学基础

本文在对脑电信号非线性分析方法进行了简要的概述和回顾后,着重从神经生理学和大脑解剖学的角度,解释为何可以用非线性动力学参数来研究人体的脑电信号,通过基础理论对这一问题进行阐述。     

Exponential smoothing: The state of the art

This paper is a critical review of exponential smoothing since the original work by Brown and Holt in the 1950s. Exponential smoothing is based on a pragmatic approach to forecasting which is shared in this review. The aim is to develop state-of-the-art guidelines for application of the exponential smoothing methodology. The first part of the paper discusses the class of relatively simple models which rely on the Holt-Winters procedure for seasonal adjustment of the data. Next, we review general exponential smoothing (GES), which uses Fourier functions of time to model seasonality. The research is reviewed according to the following questions. What are the useful properties of these models? What parameters should be used? How should the models be initialized? After the review of model-building, we turn to problems in the maintenance of forecasting systems based on exponential smoothing. Topics in the maintenance area include the use of quality control models to detect bias in the forecast errors, adaptive parameters to improve the response to structural changes in the time series, and two-stage forecasting, whereby we use a model of the errors or some other model of the data to improve our initial forecasts. Some of the major conclusions: the parameter ranges and starting values typically used in practice are arbitrary and may detract from accuracy. The empirical evidence favours Holt's model for trends over that of Brown. A linear trend should be damped at long horizons. The empirical evidence favours the Holt-Winters approach to seasonal data over GES. It is difficult to justify GES in standard form–the equivalent ARIMA model is simpler and more efficient. The cumulative sum of the errors appears to be the most practical forecast monitoring device. There is no evidence that adaptive parameters improve forecast accuracy. In fact, the reverse may be true.     

五种车轴草属植物节的比較解剖学

本文研究了国产五种车轴草属植物节的解剖构造,并从这些特征上讨论了它们之间的关系。     

The teachers/practitioners corner comparative analysis of load forecasting techniques at a southern utility

The prime directive of any regulated electric utility is to provide adequate and reliable electricity supplies to the consuming public at reasonable cost. This requires the continual addition of new generating plants which is based on a long term forecast of energy and peak demand. This study documents the forecasting process used at a southern utility and compares the accuracy of their models to that produced using Holt's exponential smoothing and generalized adoptive filtering.     

Forecasting the economic recession in the U.K. 1979-1982: A comparison of model-based ex ante Forecasts

This paper compares the forecasts of recession and recovery made by five non-government U.K. teams modelling the economy (Cambridge Econometrics, the London Business School, the National Institute of Economic and Social Research, the Cambridge Economic Policy Group and the Liverpool Research Group). The paper concentrates on annual ex ante projections as published over the period 1978-1982, i.e. forecasts made, before the event, of the onset, length, depth and character of the economic recession in the U.K. which began in 1979. The comparison is in terms of year by year changes in production, unemployment, prices and other variables. It concludes that no group was systematically better or worse than other groups (confirming U.S. experience) and that the groups tended to perform better in their chosen areas of specialization, e.g. medium-term groups did better at forecasting the medium-term outcome.