基于不确定度处理的导热系数实验挖掘

在计算机普及和大物实验智能化的时代背景下,许多理工院校特别是普通工科院校中对实验数据的处理要求逐渐简化,甚至已不再有不确定的数据处理要求。部分学有遗力或感兴趣的学生希望有更深入的数据处理与分析,但缺乏比较有可操作性的实例参考,目前导热系数的数据处理相关文献尚无不确定度处理的报道。特别是不确定处理,成了学生难以触及触摸的禁区。针对这样的现状,我们提供了方程回归法、作图法和逐差法这三种有效的数据处理方法,并首次详细给出了不确定度处理过程。基于不确定处理结果,我们进行了有效的误差分析并针对性地提出了实验的操作建议,具有一定的参考价值。     

Multi-Slit Diffraction of Evanescent Electromagnetic Waves

The well-known Fraunhofer multi-slit diffraction is described as the multi-slit interference modulated by the singleslit diffraction, namely the multiplication between the single-slit diffraction factor and the multi-slit interference factor. By considering the simplified argument we show that the multi-slit diffraction of evanescent waves which are in the near-field region also has the interference and diffraction effects, and that this two-fold effect can be expressed as the convolution of the diffraction factor and the interference factor. Our conclusion could be helpful to understand the contribution of evanescent waves to the optical responses of sub-wavelength structures such as slits and grooves.     

格值逻辑公式中短语和文字的可消性

本文分别给出了格值辽辑公式中短语和文字可消去的一些充要条件,从而为格值逻辑公式的化简提供了理论基础.     

Prime Space of Lattice Implication Algebras

1.IntroductionPeoplehavepaidmoreattentiontolathcevaluedlogicsystem,whichwillbecomemuchbetterlogicalsystemforintelligentcomputer.InreferenceL1JXuYangpresentanalgebrastructure-latticeimplicationalgebrabycomblngthelatticewithimplicationalgebraastruevaluefieldoflatticevaluedlogicaIsystem.Afterthat,westudytheimplicationhomomor-phism,congruencerelationsandalgebraicstructureoflatticeimplicationalgebraanddiscussthefirstorderlogicalsystemFMbasedonlatticeimplicationalgebras,andobtainedseveralimpor-ta…     

On the Product and Factorization of Lattice Implication Algebras

In this paper,the concepts of product and factorization of lattice implication algebra areproposed,the relation between lattice implication product algebra and its factors and some properties oflattice implication product algebras are discussed.     

Simulation of Femtosecond Pulse Propagation through Hollow Fibre Filled with Noble Gases of Gradient Temperature

We propose a novel technique for generating intense few to mono-cycle femtosecond pulses. The simulation demonstrate that for the temperature difference of 300K, the spectrum of the output pulses is increased by 67% and the transform limited pulse width is reduced almost by half, compared with those obtained with hollow fibres in uniform temperature.     

格值逻辑公式中短语的文字的可消性

本文分别给出了格值逻辑公式中短语和文字可消去的一些充要条件，从而为格值逻辑公式的化简提供了理论基础。     

The Property of Bair in r-Space

ＴｈｅＰｒｏｐｅｒｔｙｏｆＢａｉｒｉｎｒ－ＳｐａｃｅＳｏｎｇＺｈｅｎｍｉｎｇ（宋振明）（ＨｅｎａｎＵｎｉｖｅｒｓｉｔｙ）Ａｂｓｔｒａｃｔ：ＩｎｔｈｉｓＰａｐｅｒ，ｗｅＳｔｕｄｙｐｒｏｐｅｒｔｉｅｓｏｆＢａｉｒｂｙｓｙｍｍｅｔｒｉｃｄｉｆｆｅｒｅｎｃｅ...     

高斯脉冲调制啁啾艾里脉冲

艾里脉冲尤其是啁啾艾里脉冲，由于其具有独特的性质，为此越来越受到人们的广泛关注和研究。但是由于啁啾艾里脉冲的复杂性，至今鲜有关于啁啾艾里脉冲的实验报道。鉴于此，在理论上通过对啁啾高斯脉冲进行调制可以得到啁啾艾里脉冲，并对调制机制及调制后脉冲的传输性质进行一定的研究。研究结果表明，调制后得到的类啁啾艾里脉冲与啁啾艾里脉冲基本相同，而且具有啁啾艾里脉冲的传输性质，这证明了通过对啁啾高斯脉冲进行调制得到啁啾艾里脉冲的可行性。     

基于集值映射的形式概念分析

Formal concept analysis (FCA) is a discipline that studied the hierarchical structares induced by a binary relation between a pair of sets,and applies in data analysis,information retrieval,knowledge discovery,etc.In this paper,it is shown that a formal context T is equivalent to a set-valued mapping S :G →P(M),and formal concepts could be defined in the set-valued mapping S.It is known that the topology and set-valued mapping are linked.Hence,the advantage of this paper is that the conclusion make us to construct formal concept lattice based on the topology.