海森伯矩阵力学和测不准关系的产生及其哲学贡献

分析了海森伯阵力学和测不准关系产生的背景及思想基础，并对其在“物理客体”和“物理实在”的哲学关系上所起的作用作了较为深入的挖掘。     

关于数学严谨性与教学原则的思考

对数学严谨性、非严谨性、量力性进行全面的思考与探析，提出教学中要把握好严谨的类型、严谨的相对性．正确处理局部与整体相对严谨的关系，暂时与长远相对严谨的关系，教师与学生相对严谨的关系．     

测量结果两种表示方法的分析

在生产实践和科学实验中，处理测量数据及给出测量结果是测量时必不可少的工作。长期以来，人们一直是以误差理论为依据，用测量误差表示测量结果。现在，国际上普遍认为采用以概率论和统计学为基础的测量不确定度来说明测量结果的可信程度更为科学、合理。本文简要叙述了测量误差的概念及表示，着重介绍了测量不确定度的来源、分类及表示方法。     

Curie’s principle and causal graphs

Curie’s Principle says that any symmetry property of a cause must be found in its effect. In this article, I consider Curie’s Principle from the point of view of graphical causal models, and demonstrate that, under one definition of a symmetry transformation, the causal modeling framework does not require anything like Curie’s Principle to be true. On another definition of a symmetry transformation, the graphical causal modeling formalism does imply a version of Curie’s Principle. These results yield a better understanding of the logical landscape with respect to the relationship between Curie’s Principle and graphical causal modeling.     

How uncertainty can save measurement from circularity and holism

Measurement results depend upon assumptions, and some of those assumptions are theoretical in character. This paper examines particle physics measurements in which a measurement result depends upon a type of assumption for which that very same result may be evidentially relevant, thus raising a worry about potential circularity in argumentation. We demonstrate how the practice of evaluating measurement uncertainty serves to render any such evidential circularity epistemically benign. Our analysis shows how the evaluation and deployment of uncertainty evaluation constitutes an in practice solution to a particular form of Duhemian underdetermination that improves upon Duhem's vague notion of “good sense,” avoids holism, and reconciles theory dependence of measurement with piecemeal hypothesis testing.     

States of ignorance and ignorance of states: Examining the Quantum Principal Principle

Earman (2018) has recently argued that the Principal Principle, a principle of rationality connecting objective chance and credence, is a theorem of quantum probability theory. This paper critiques Earman's argument, while also offering a positive proposal for how to understand the status of the Principal Principle in quantum probability theory.     

试论模糊限制语的语用功能

作为模糊语言的一个重要组成部分,模糊限制语有着独特的语义特点和丰富的语用功能.结合语用学的一些基本理论和原则对其进行语用分析,将进一步证明在日常会话中使用模糊限制语是一种行之有效的交际策略.     

主成分分析在高光谱遥感图像降维中的应用

高光谱遥感图像的高数据维给图像进一步处理带来了困难,为了解决这一问题,本文提出了主成分分析的降维方法.根据原始数据协方差阵的特征值和特征向量,可以计算各个波段对给定主成分的贡献率,对重要主成分贡献率的和直接反应了波段信息量的大小,实验证明,该方法效果较好,且计算量小.     

共轭单元调控三苯胺类敏化染料电子激发性质的计算研究

为了增强传统乙烯键π桥的拉电子能力,针对经典D-A-π-A型三苯胺基敏化染料在电荷转移过程中的分子内回流现象,通过在额外受体苯并噻二唑和π桥乙烯之间增加苯、噻吩、呋喃和吡咯等共轭单元设计了4个新的染料分子,基于第一性原理计算探究了共轭单元对染料RL1激发态的调控作用。结果表明,苯并噻二唑在起到额外受体电子推拉作用的同时,由于较强的吸电子能力,导致一定的电子回流;设计的4种染料分子与RL1染料相比,苯、噻吩、呋喃和吡咯既减弱了苯并噻二唑的吸电子能力,又起到了一定的电子供体作用,明显增强了氰基乙酸基团的吸电子能力。在染料分子的设计和合成中,研究结果可为进一步提升染料的光电转化效率提供理论依据。     

GMD机械绘图系统原理

GMD机械绘图系统是一个通用的参数式机械绘图软件,可用于构造及绘制各种机械的零件图及装配图,它由图库处理程序、绘图程序及数字化菜单三部分组成。本文将分别介绍各部分的功能及其原理和方法,关于参数式机械图库的文件结构,请参阅文。