论动体温度变换和热力学定律的协变形式

本文讨论了相对论热力学中Ｐｌａｎｃｋ－Ｅｉｎｓｔｅｉｎ学派和Ｏｔｔ－Ｍｌｌｅｒ学派的主要分歧，指出引导力的存在是相对论效应的必然结果，从而确认了Ｐ－Ｅ温度变换关系，并且进一步导出热力学定律协变形式的两个标量方程。     

广义离散随机线性系统的Bayes估计

广义离散随机线性系统的Ｂａｙｅｓ估计王玉振（泰安师专数学系）周文安（山东矿业学院系统工程研究所）摘要运用Ｂａｙｅｓ预测理论讨论了广义离散随机线性系统的状态估计问题，提出了一种简便的状态估计递推算法。关键词Ｂａｙｅｓ理论；广义离散随机线性系统；状态估...     

显象管延伸性失真的校正

显象管荧光屏的平面性，使图象（光栅）产生延伸性失真，即枕形失真。本文分析了显象管延伸性失真的校正原理，详细介绍了电视机中各种枕形校正电路，并进行了电路分析。     

环面蜗杆滚子蜗轮传动设计

本文全面论述了环面蜗杆滚子蜗轮传动的啮合原理、啮合参数及其强度,并提供了设计计算公式。     

Fuzzy集合上Fuzzy测度的绝对连续性及扩张

文[1]在经典集合类中,研究了一类特殊的Fuzzy测度的扩张,给出了从一个代数到包含它的σ-代数扩张的条件、本文在Fuzzy集合类中得到了文[1]中的所有结论,从而推广了文[1]的结果。     

模糊映照

定义 设X、Y是两个点集。f称为X到Y的模糊映照,记为f～→Y,是指X的每一点x,对应于Y上一个非空模糊集f(x),其从属函数记为μ_(f(x))(y)。 通过μ_(f(x))(y)=μ_R(x、y),(?x∈X,?y∈y),这样的联系,说明X到Y的模糊映照f与X×Y上的模糊关系R这两个概念是等价的。因此,两个模糊映照f:X～→Y和g:Y～→Z的合成g。f;X～→Z,按模糊关系的合成法,有     

Testament to conversations on critical systems thinking between two systems practitioners

This is a testament to conversations held in Berne and Fribourg, Switzerland, in late 1988. The main theme that we present concerns seeking to find an adequate epistemology for systems practice, to find a truly critical approach, by shifting our interests from systems science to systems rationality (i.e., by reaching out toward a systems epistemological ideal) and by dealing with sociological phenomena such as the effects of material conditions and false consciousness and inequalities associated with these. Social rationalities relating to positivism, interpretivism, and critique are considered. Limitations and legitimacies of these rationalities in social contexts are made explicit in these discussions.Conversations were held in Berne and Fribourg, Switzerland, between 30 November and 5 December 1988.     

双异戊烯基黄酮分子的光谱和热力学性质研究

使用密度泛函理论B3LYP方法,对两种双异戊烯基黄酮1R和2分子的几何结构、光谱、热力学性质进行理论计算研究,并基于Tomasi极化统一场模型(PCM)讨论溶剂效应.结果显示,1R和2分子在气相中的最低能量吸收波长分别为325.6和361.9nm,溶剂及其极性大小对1R和2分子的最低能量吸收波长影响很小.298K标准压力下,1R和2分子的气态标准摩尔热力学性质ΔfHθm分别为3455.51kJ/mol和3691.26kJ/mol,ΔfGθm分别为4028.23和4282.98kJ/mol,Sθm分别为834.90和834.97J/mol/K.     

The logic of experimental tests,particularly of Everettian quantum theory

Claims that the standard procedure for testing scientific theories is inapplicable to Everettian quantum theory, and hence that the theory is untestable, are due to misconceptions about probability and about the logic of experimental testing. Refuting those claims by correcting those misconceptions leads to an improved theory of scientific methodology (based on Popper׳s) and testing, which allows various simplifications, notably the elimination of everything probabilistic from the methodology (‘Bayesian’ credences) and from fundamental physics (stochastic processes).