“以写促学”在基础英语教学中的运用

本文指出“以写促学”可帮助学生提高写作热情,增强学习自信心,进而提高语言能力。     

论《史记》对汉初最高统治者的贬斥

伟大的历史学家、文学家司马迁倾尽生命写就千古卓著《史记》，太史公秉笔直书的笔法、对历史人物饱满深厚的情感、“不虚美、不隐恶”的实录精神以及“贬天子、退诸侯、讨大夫”的修史目的导致了《史记》戏剧般跌宕起伏的命运。司马迁以敏锐、独到的历史眼光洞察到汉初社会潜在的重重危机，痛斥汉代最高统治者们的荒淫残暴、统治集团内部勾心斗角、相互残害和上流社会道德沦丧，尖锐批判的矛头甚至直指“今上”汉武帝。一部《史记》，颠覆的是王道，古今史家敢于这般直斥当朝天子者，仅司马迁一人。     

艺术的身体性本源——从身体出发解读尼采美学

尼采文本中隐含着一条思想的道路,即从身体出发,在身体敞开的维度内思考问题。身体为我们透视尼采的美学提供了这样一个视角:尼采是从艺术家这一身体性的存在者出发思考艺术的本源,他在艺术家的陶醉状态中揭示出作为创造力意志的权力意志。权力意志作为艺术的本源是身体性的,具体表现为人类学、生理学和心理学三个方面。     

长三角都市圈与东盟国家贸易实证分析

从长三角都市圈与东盟双边贸易发展的理论分析、现状和特点人手,结合长三角都市圈与东盟双边贸易历年数据、贸易结合度指数、出口依存度指数以及拉动经济增长的线性回归模型等进行实证分析,得出长三角都市圈与东盟双边贸易的结构特点及发展趋势,并对促进双边贸易的扩大发展提出有效措施.     

Identifying Dispersion Effects in Robust Design Experiments—Issues and Improvements

The two experimental methods most commonly used for reducing the effect of noise factors on a response of interest Y aim either to estimate a model of the variability (V(Y), or an associated function), that is transmitted by the noise factors, or to estimate a model of the ratio between the response (Y) and all the control and noise factors involved therein. Both methods aim to determine which control factor conditions minimise the noise factors' effect on the response of interest, and a series of analytical guidelines are established to reach this end. Product array designs allow robustness problems to be solved in both ways, but require a large number of experiments. Thus, practitioners tend to choose more economical designs that only allow them to model the surface response for Y. The general assumption is that both methods would lead to similar conclusions. In this article we present a case that utilises a design based on a product design and for which the conclusions yielded by the two analytical methods are quite different. This example casts doubt on the guidelines that experimental practice follows when using either of the two methods. Based on this example, we show the causes behind these discrepancies and we propose a number of guidelines to help researchers in the design and interpretation of robustness problems when using either of the two methods.     

TMS32010自适应均衡系统的开发与实现

本文使用新一代的高速信号处理片TMS32010设计出LMS算法的自适应均衡(AE)系统。在收敛性能、处理速度、小型化、使用灵活性及成本费用诸方面均优于或等于用模拟电路、专用数字电路及一般16位微机制成的AE系统。文中叙述了TMS32010 AE系统的设计思想,总体设计和硬、软件设计方法,结构框图,设计时需注意的各种问题以及试验結果。通过实验证明,系统是成功的,其性能与理论分析相符。本文所述方法除可用于LMS算法的AE设计外,也可用于其它AE算法的设计,且若适当改变程序及少量输出接口硬件,尚可用于其它数字信号处理,如调制解调、谱估计及声音控制等。     

也谈原始宗教与原始艺术的关系

原始宗教艺术是伴随着原始宗教的形成和发展而产生的,原始宗教和原始艺术不可分割、互相渗透,原始宗教为原始艺术提供内容,而原始艺术则成为宗教的表现形式。二者具有谁也离不开谁的渊源关系。     

岑参赴安西路途考证

唐代著名诗人岑参以边塞诗名世,从文学史的角度结合岑参诗作描述岑参西域经历的论述颇多,但分歧亦大,尤以首赴安西路途为最。运用当今学界对唐代西域之政治、军事、商贸、地理、交通及出土文物的研究成果,基本可以说明,岑参首途安西出瓜州后,按常理应该不走丝路南道,不到敦煌,亦不过阳关,而是径由玉门关,走最安全、通畅之丝路中道。     

Studying categorical data over time

A review of recently developed simple techniques for analyzing data in the form of proportions from replicated, cross-sectional, sample surveys. (A) One variable over time—tests for homogeneity, pooling homogeneous proportions, tests for linear trends with as few as three time points, tests for departures from linearity; (B) Two variables with a constant percentage difference—four fold tables as rudimentary causal models, decomposing change with linear flow graphs; (C) Extension of the flow graph techniques to—three or more variables and changing coefficients; (D) Comments implying panel designs are somewhat over-rated and successive cross-sections somewhat under-rated.     

A likelihood ratio test for bimodality in two-component mixtures with application to regional income distribution in the EU

We propose a parametric test for bimodality based on the likelihood principle by using two-component mixtures. The test uses explicit characterizations of the modal structure of such mixtures in terms of their parameters. Examples include the univariate and multivariate normal distributions and the von Mises distribution. We present the asymptotic distribution of the proposed test and analyze its finite sample performance in a simulation study. To illustrate our method, we use mixtures to investigate the modal structure of the cross-sectional distribution of per capita log GDP across EU regions from 1977 to 1993. Although these mixtures clearly have two components over the whole time period, the resulting distributions evolve from bimodality toward unimodality at the end of the 1970s.