Design optimization using ANOVA

This paper describes the design optimization of a robot sensor used for locating 3-D objects employing the Taguchi method in a computer simulation scenario. The location information from the sensor is to be utilized to control the movements of an industrial robot in a 'pick-and-place' or assembly operation. The Taguchi method, which is based on the Analysis-of-Variance (ANOVA) approach, is utilized to improve the performance of the sensor over a wider operating range. A review of the Taguchi method is presented along with step-by-step implementation details to identify and optimize the design parameters of the sensor. The method allows us to gauge the impact of various interactions present in the sensor system exclusively and permits us to single out those factors that have a dominant influence on the overall performance of the sensor. The investigation suggests that the Taguchi method is a more structured and efficient approach for achieving a robust design compared with the classical full factorial design approach.     

A continuous sampling plan using CUSUMs

A Continuous Sampling Plan, CSP-CUSUM, is proposed based on the use of Cumulative Sums (CUSUMs) for deciding when to switch between the phases of sampling inspection and 100% inspection. The Geometric CUSUM, also termed the Run-length CUSUM, is chosen for this purpose, and two separate CUSUMs are to be operated, one for each inspection phase. The conventional measures of performance for CSPs such as average outgoing quality, average fraction inspected, and average proportion passed under sampling inspection are evaluated for CSP-CUSUM, and comparisons with some standard CSPs are presented. An additional performance-measure, Average Cycle Length, is proposed. A table is provided to aid the choice of parameters for the operation of CSP-CUSUM. It is recommended that a Geometric CUSUM control chart be maintained in parallel with CSP-CUSUM to detect significant upward shifts in the incoming fraction defective.     

中央民族大学民族博物馆馆藏台湾少数民族文物及其价值

中央民族大学民族博物馆馆藏台湾少数民族文物约 4 0 0余件 ,具有较高的文物价值和学术价值。目前 ,已展示了部分文物 ,还计划推出有关专题展。对于研究者 ,也将提供图片或展示实物等服务 ,以期充分发掘和利用其文物价值。     

索绪尔结构语言学思想刍议

索绪尔关于语言学的基本思想包括语言和言语的相互关系，语言 和文字的分离趋势，历时和共时的基础及其方法论意义，在所指和能指的言说中，差别是语 言符号系统的决定性因素。     

赤橙黄绿青蓝紫--张爱玲和她的散文

色彩词在张爱玲笔下的运用 ,显得自然朴实。它带来的既有轻松乐趣又有沉重悲凉。透过冷艳的色彩 ,我们更多看到的是充斥着荒凉感的张爱玲 ,把对现实的恐怖 ,对不可知的未来 ,通过“俗”的物和绝妙的感受 ,以奇特的手法表达了出来 ,她完全称得上一位艺术大师     

充分行使自治权促进民族地区发展

自治权是《宪法》和《民族区域自治法》赋予民族自治地方的基本权利 ,具有真实性和广泛性。尽管自治权的行使对促进民族自治地方的全面发展起到了积极作用 ,但当前民族自治地方仍应解放思想 ,大胆探索 ,结合本民族地区的特点 ,充分利用自治权 ,首先把经济搞上去 ,同时完善民族法律法规体系 ,确保自治权的行使 ,上级国家机关也应转变观念 ,保证民族自治机关充分享有自治权     

Still-births among the offspring of male radiation workers at the Sellafield nuclear reprocessing plant: detailed results and statistical aspects

Summary. This study investigates whether there was evidence of increasing risk of still-birth with increasing paternal exposure to ionizing radiation received during employment at the Sellafield nuclear installation before the child was conceived. A significant positive association is found between the total paternal preconceptional exposure to external ionizing radiation and the risk of still-birth (after adjustment for year of birth, social class, birth order and paternal age, odds ratio at 100 mSv 1.24 (95% confidence interval 1.04–1.45)). A summary of the principal scientific findings of this study has been published in the Lancet . This paper describes in detail the statistical methods that were used in the investigation and presents the results in full.     

Measuring agreement between two statistics with applications to age standardization

Summary.  We detail a general method for measuring agreement between two statistics. An application is two ratios of directly standardized rates which differ only by the choice of the standard. If the statistics have a high value for the coefficient of agreement then the expected squared difference between the statistics is small relative to the variance of the average of the two statistics, and inferences vary little by changing statistics. The estimation of a coefficient of agreement between two statistics is not straightforward because there is only one pair of observed values, each statistic calculated from the data. We introduce estimators of the coefficient of agreement for two statistics and discuss their use, especially as applied to functions of standardized rates.     

ERP在钢铁贸易企业的应用研究

以上海宝钢技术经济发展公司为对象,根据公司对提升内部管理及业务流程规范化的要求,研究了公司建立ERP系统的定位及目标,提出应建立以钢材贸易和钢铁产品深加工为主业的ERP体系,实现流通过程中的价值增值.在分析存在的主要问题的基础上,提出了ERP的模式、流程设计及采购业务、库存业务的解决方案.