无限家园--读廖志理的组诗《来自生活最初的激情》

文章通过解读组诗文本,抓住家园情结这一内核,较为翔实地剖析了诗人对农耕民族的精神历程与诗意关怀,并归纳了三个艺术特点即忧患精神的张扬、时空转换的把握和整体象征的艺术自觉.     

Modelling heterogeneous space–time occurrences of earthquakes and its residual analysis

Summary. Earthquake intensities are modelled as a function of previous activity whose specific form is based on established empirical laws in seismology, but whose parameter values can vary from place to place. This model is used for characterizing regional features of seismic activities in and around Japan, and also for exploring regions where the actual seismicity rate systematically deviates from that of the modelled rate.     

Data tilting for time series

Summary. We develop a general methodology for tilting time series data. Attention is focused on a large class of regression problems, where errors are expressed through autoregressive processes. The class has a range of important applications and in the context of our work may be used to illustrate the application of tilting methods to interval estimation in regression, robust statistical inference and estimation subject to constraints. The method can be viewed as 'empirical likelihood with nuisance parameters'.     

神性、人性和理性--略论艺术形态与时代精神

艺术的本质在于其精神性,从艺术和时代精神的相互关系中去确立划分艺术形态的标准是符合艺术本质的.按照艺术所包含的精神内容的不同,艺术形态可分为神性艺术、人性艺术和理性艺术,以丰富的艺术史例可以说明其特征.     

制造企业生存和发展的推动力--技术创新

技术创新是制造企业发展的原动力和核心竞争力.培养员工的创新精神,营造有利于创新的企业文化环境,制定符合制造企业发展要求的创新策略,建立鼓励创新的管理机制和创新能力评价体系是提高制造企业创新能力的关键.     

A modified random-effect procedure for combining risk difference in sets of 2×2 tables from clinical trials

Summary Meta-analyses of sets of clinical trials often combine risk differences from several 2×2 tables according to a random-effects model. The DerSimonian-Laird random-effects procedure, widely used for estimating the populaton mean risk difference, weights the risk difference from each primary study inversely proportional to an estimate of its variance (the sum of the between-study variance and the conditional within-study variance). Because those weights are not independent of the risk differences, however, the procedure sometimes exhibits bias and unnatural behavior. The present paper proposes a modified weighting scheme that uses the unconditional within-study variance to avoid this source of bias. The modified procedure has variance closer to that available from weighting by ideal weights when such weights are known. We studied the modified procedure in extensive simulation experiments using situations whose parameters resemble those of actual studies in medical research. For comparison we also included two unbiased procedures, the unweighted mean and a sample-size-weighted mean; their relative variability depends on the extent of heterogeneity among the primary studies. An example illustrates the application of the procedures to actual data and the differences among the results. This research was supported by Grant HS 05936 from the Agency for Health Care Policy and Research to Harvard University.     

现象学的问题如何发生--德里达对胡塞尔发生现象学的解读

德里达对胡塞尔的发生现象学有他自己的特殊理解,他研究了观念的历史,以及根据所形成的心理习惯构成的观念,当然,这也是观念对象构成的历史过程。发生是一个陌生的过程:在即将来临的历史中包含着一种中断。德里达描述了从某种确定的目的论返回到胡塞尔所新近确立的起源问题的运动结构。德里达研究稳定的结构与发生现象学之间的关系,在这个过程中,德里达提出了关于解构的基本问题。     

从《老人》看凯瑟琳·安·波特的叙述艺术

凯瑟琳.安.波特的中篇小说《老人》在时间结构、叙述视角以及人物话语几个方面紧紧围绕米兰达对艾米姑妈的悲剧故事的了解过程这一主线展开。通过这些叙事策略进一步深化了小说的主题。     

中国始炼硫化汞时间新证

中国始炼硫化汞的时间问题,因其关涉到“人类第一次用自己的劳动得到了实质上与天然产物无二的成果”,而引起科技史家的极大关注,但因缺乏确凿资料,以至该问题一直悬而未决。事实上,此前学界认为道士升炼硫化汞的时间大略始于隋代的观点是值得商榷的。仅以《道藏》所载炼丹文献为例,即可粗举数例隋代以前与升炼硫化汞相关的资料。进一步的考证说明,中国古代道士早在南北朝或晋代甚至汉代,就已经能够用人工的方法升炼硫化汞了。     

数控机床功能的扩展

本文主要分析了HEIDENHAIN TNC 310数控铣床系统中圆弧铣削指令及螺纹铣削指令,对螺纹铣削功能进行延伸,扩展到圆弧三轴联动,并对螺纹铣削指令格式进行了修改,从而具有圆弧三轴联动铣削功能。