多秘密共享方案的应用

在以往的秘密共享方案中一般是仅有一个秘密在n个参与者中共享,而很少涉及到共享多个秘密的秘密共享方案.本文所给出的可共享多个秘密的秘密共享方案是建立在一般接入结构上的.并且该方案在实际生活中有着很重要的应用,本文将给出一个在公司总裁与职工之间进行的应用.     

广义向量相补问题的解的存在性定理

本文在Hausdorff线性拓扑空间的框架下 ,得到广义向量相补问题的解的存在性定理 ,其中利用了escaping序列的概念     

The Fuzzy Modeling Algorithm for Complex Systems Based on Stochastic Neural Network

The Fuzzy Modeling Algorithm for Complex Systems Based on Stochastic Neural Network~~~~     

一类具非正则条件的迁移算子A的谱

在L1空间中讨论了一类具非正则条件的迁移算子的谱,在扰动算子K是非正则和m>3的条件下,证明了该C0半群V(t)的Dyson-Phillips展开式的余项R2m+1(t)在L1空间中弱紧,从而得到了文献[3]的主要结果,并得到了C0半群U(t)和C0半群V(t)有相同的本质谱型。     

对信息科学的一般方法论问题探讨

各门具体科学通用的研究方法是进行科学研究的一般方法,这种方法的客观基础是科学研究对象和科学本身存在着共同的属性与规律,这些共同的属性与规律通过客体向主体、客观向主观的转化,形成了各门科学通用的思维规则和手段.信息科学的研究方法多半是由其它学科的研究方法移植过来加以改造而成的,其基本思想是将一般方法的普遍性与信息科学研究的特殊性相结合,逐步做到融化与同化,一旦证明这种方法适用于信息科学研究,它就成为揭示信息和信息现象内部规律的、有独到之处的研究方法,成为信息科学一般方法论体系中的有机组成.     

基于GPU的通用计算模型

基于计算核和图形接口能够支持GPU 通用计算的特点,给出了一个规范的四层编程模型.本文主要研究了在系统抽象层中对计算核和图形接口层的图形操作抽象成通用计算的过程,其目的是屏蔽图形操作的痕迹,使在应用层执行屏蔽图形绘制程序,图形接口能够被抽象成GPU进行通用计算操作,提高面向GPGPU绘制语言的可描述性和规范化,并通过检测模块的设置检测运行环境,以提高效率.     

中国木犀属(桂花属 Osmanthus)植物的研究概况和开发利用

总结了中国木犀属植物研究的历史、现状，以及开发利用的价值，并就该属植物的研究重点及开发利用提出建议。     

On geometric objects,the non-existence of a gravitational stress-energy tensor,and the uniqueness of the Einstein field equation

The question of the existence of gravitational stress-energy in general relativity has exercised investigators in the field since the inception of the theory. Folklore has it that no adequate definition of a localized gravitational stress-energetic quantity can be given. Most arguments to that effect invoke one version or another of the Principle of Equivalence. I argue that not only are such arguments of necessity vague and hand-waving but, worse, are beside the point and do not address the heart of the issue. Based on a novel analysis of what it may mean for one tensor to depend in the proper way on another, which, en passant, provides a precise characterization of the idea of a “geometric object”, I prove that, under certain natural conditions, there can be no tensor whose interpretation could be that it represents gravitational stress-energy in general relativity. It follows that gravitational energy, such as it is in general relativity, is necessarily non-local. Along the way, I prove a result of some interest in own right about the structure of the associated jet bundles of the bundle of Lorentz metrics over spacetime. I conclude by showing that my results also imply that, under a few natural conditions, the Einstein field equation is the unique equation relating gravitational phenomena to spatiotemporal structure, and discuss how this relates to the non-localizability of gravitational stress-energy. The main theorem proven underlying all the arguments is considerably stronger than the standard result in the literature used for the same purposes (Lovelock's theorem of 1972): it holds in all dimensions (not only in four); it does not require an assumption about the differential order of the desired concomitant of the metric; and it has a more natural physical interpretation.     

Is the EHT black hole experiment a new experiment in the guise of an old experiment?

This paper analyzes the experiment presented in 2019 by the Event Horizon Telescope (EHT) Collaboration that unveiled the first image of the supermassive black hole at the center of galaxy M87. The intended aim of the paper is to assess whether the EHT Collaboration has made an “inference to the best explanation” (IBE) to conclude that the data effectively confirm the hypothesis that the object at the center of M87 is in fact a supermassive Kerr rotating black hole. I demonstrate that the EHT Collaboration has applied an IBE. It is shown that the hypothesis that at the center of M87 there is a supermassive Kerr rotating black hole was already the best explanation at the time in which the 2017 EHT experiment was conducted. My analysis is intertwined with considerations on realist and empiricist interpretations of IBE, which are used to assess whether the conclusion that the object at the center of M87 is a Kerr rotating black hole implies holding a realist commitment with respect to such object.     

基于通识教育理论的写作课程教学述要

写作课程作为高等职业教育的必修课程,既具有基本技能特征,又具有职业技能特性。课程教学的整体设计、章节安排、具体内容选择、教学方式方法和考核评价方式等应兼具写作技能教学和人文教育(通识教育内涵之一)功能。特别强调教学内容打破文种语体训练模式,教学方法打破单纯文字写作训练模式,综合借鉴尝试多媒体资料与新媒体传播手段,提升教学活力与能力适应度;课程整体的序化原则关注学生的心理需求和兴趣导向,提升接受程度和互动深度。