On the empirical equivalence between special relativity and Lorentz׳s ether theory

In this paper I argue that the case of Einstein׳s special relativity vs. Hendrik Lorentz׳s ether theory can be decided in terms of empirical evidence, in spite of the predictive equivalence between the theories. In the historical and philosophical literature this case has been typically addressed focusing on non-empirical features (non-empirical virtues in special relativity and/or non-empirical flaws in the ether theory). I claim that non-empirical features are not enough to provide a fully objective and uniquely determined choice in instances of empirical equivalence. However, I argue that if we consider arguments proposed by Richard Boyd, and by Larry Laudan and Jarret Leplin, a choice based on non-entailed empirical evidence favoring Einstein׳s theory can be made.     

Signal Diffusion Mapping: Optimal Forecasting with Time‐Varying Lags

We introduce a new methodology for forecasting, which we call signal diffusion mapping. Our approach accommodates features of real‐world financial data which have been ignored historically in existing forecasting methodologies. Our method builds upon well‐established and accepted methods from other areas of statistical analysis. We develop and adapt those models for use in forecasting. We also present tests of our model on data in which we demonstrate the efficacy of our approach. Copyright © 2015 John Wiley & Sons, Ltd.     

基于电子束扫描控制的中间层熔炼技术

试验采用按一定配比混合的铼、钛等金属粉末作为复合中间层材料，利用开发的电子柬扫描控制系统，通过电子束束流大小、扫描轨迹形状、扫描点数、扫描频率和加热时间等因素的调节，控制电子束输入能量的分布，从而控制基体材料对中间层的稀释率，最终达到控制中间层成分的目的．试验结果表明，用受控电子束熔炼粉末金属可以获得满意的中间层材料．     

浅谈师专物理实验教学中的素质教育

文章从师专物理实验教学的实际出发，论述了物理实验教学中对学生实验技能和素质的培养。     

利用最小二乘法估算Shooman模型中的参数及其程序实现

本文给出Shooman模型中参数的一种有效的估算方法，能使整体性能最优的最小二乘法。并给出其具体的程序实现。     

Applications of time-series analysis in accounting: A review

This paper reviews research that makes use of one of the most popular forecasting methods applied in accounting: time-series analysis using the Box-Jenkins methodology. It organizes the research in the area, surveys recent applications of time-series analysis in accounting, and discusses the potential for the methodology in addressing future research issues. The emphasis is on those aspects of the accounting system that possibly cause difficulties in applying time-series methods in accounting.     

The accuracy of extrapolation (time series) methods: Results of a forecasting competition

In the last few decades many methods have become available for forecasting. As always, when alternatives exist, choices need to be made so that an appropriate forecasting method can be selected and used for the specific situation being considered. This paper reports the results of a forecasting competition that provides information to facilitate such choice. Seven experts in each of the 24 methods forecasted up to 1001 series for six up to eighteen time horizons. The results of the competition are presented in this paper whose purpose is to provide empirical evidence about differences found to exist among the various extrapolative (time series) methods used in the competition.     

崇启大桥钢箱梁试验段制造工艺技术研究

本文基于崇启大桥主桥钢箱梁梁段制造工艺参数采集的需要,对试验段的制造工艺技术进行了探讨与研究。     

对称熵损失下工序能力指数C_p的估计

研究工序能力指数在对称熵损失函数下的最小风险同变估计（MRE）和Bayes估计,给出MRE估计的精确形式,并对置信度为1-α的区问估计给出临界值,同时,证明Bayes估计是可容许的．     

对均质微可压缩液体渗流数学模型解析解的修正

本文分析了均质徽可压缩液体数学模型的解析解,指出当参数S<0时,解析解值得修正。