期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
Mathematical Foundation of Visual Query Languageon Spatial Information
1
作者 Wang Jianhua Guo Jingjun +2 位作者 Yan Huiwu Zhu Guorui Wu Hehai 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2000年第4期66-72,共7页
Visual Query Language on Spatial Information (SIVQL) is one kind of visual query language based on the extension of Query by Example (QBE). It is a visual operation based on graphics or media object, such as point, li... Visual Query Language on Spatial Information (SIVQL) is one kind of visual query language based on the extension of Query by Example (QBE). It is a visual operation based on graphics or media object, such as point, line and area elements. In this paper, the relation calculation and query function of SIVQL have been studied and discussed by using set theory and relation algebra. The theory foundation of SIVQL has been investigated by the mathematical method. Finally, its application examples are also given with the specific information system. 展开更多
关键词 Visual query language Relation algebra mathematical foundation
下载PDF
Research on the Ideological and Political Construction of Mathematics Foundations of Information Security
2
作者 Hu Xiong Hang Yan Yili Li 《计算机教育》 2022年第12期120-123,共4页
Mathematics foundations of information security is a core course in the subject of information security.In view of the current national ideological and political conference in universities,finding a way to integrate t... Mathematics foundations of information security is a core course in the subject of information security.In view of the current national ideological and political conference in universities,finding a way to integrate this course with ideological and political education attracts a lot of attention from the education community.This paper makes an assay of the significance of the combination of mathematics foundations of information security course and ideological and political education,and introduces the teaching practice of mathematics foundations of information security course combined with ideological and political education.Through the combination of ideological and political education and curriculum content,cultivating all-round development of talents who study information security. 展开更多
关键词 mathematics foundations of information security Ideological and political education Information security
下载PDF
Hilbert's Foundations Remain Intact
3
作者 Tony Palmer 《Journal of Mathematics and System Science》 2016年第8期330-334,共5页
Some of the seemingly important contributions made by Russell, Cantor and Godel regarding the foundations of mathematics lose credibility when addressed at a more fundamental level which assumes language consists of s... Some of the seemingly important contributions made by Russell, Cantor and Godel regarding the foundations of mathematics lose credibility when addressed at a more fundamental level which assumes language consists of symbols devoid of what they mean. Such an approach can reveal neglected assumptions which are of consequence when made explicit and which, in particular, mean that Hilbert in fact had no need to heed Godel's revolutionary results regarding the foundations of mathematics. 展开更多
关键词 PARADOX SELF-REFERENCE foundations of mathematics
下载PDF
Mathematical foundation of Liutex theory 被引量:7
4
作者 Chaoqun Liu Yifei Yu 《Journal of Hydrodynamics》 SCIE EI CSCD 2022年第6期981-993,共13页
Liutex is a mathematical definition of vortex,which is called the third generation of vortex definition and identification.This paper introduces the mathematical foundation of the Liutex theoretical system including d... Liutex is a mathematical definition of vortex,which is called the third generation of vortex definition and identification.This paper introduces the mathematical foundation of the Liutex theoretical system including differences in definition and operations between tensor/vector and matrix.The right version of velocity gradient tensor matrix is given to correct the old version which has been widely distributed by many mathematics and fluid dynamics textbooks.A unique velocity gradient principal matrix is provided.The mathematical foundation for Liutex definition is given.The coordinate rotation(Q-and P-rotation)for principal coordinate system and principal matrix is derived,which is the key issue of the new fluid kinematics.The divergence of velocity gradient tensor is given in different forms which may be beneficial in developing new governing equations for fluid dynamics. 展开更多
关键词 Liutex mathematical foundation TENSOR MATRIX velocity gradient fluid dynamics
原文传递
Conceptual Problems in Bell’s Inequality and Quantum Entanglement
5
作者 Yingqiu Gu 《Journal of Applied Mathematics and Physics》 2022年第7期2216-2231,共16页
The description of the microscopic world in quantum mechanics is very different from that in classical physics, and there are some points of view that are contrary to intuition and logic. The first is the problem of r... The description of the microscopic world in quantum mechanics is very different from that in classical physics, and there are some points of view that are contrary to intuition and logic. The first is the problem of reality;quantum mechanics believes the behavior of micro particles is random and jumping. The second is the loss of certainty;the conjugate physical variables of a system cannot be determined synchronously, they satisfy the Heisenberg uncertainty principle. The third is the non-local correlation. The measurement of one particle in the quantum entanglement pair will influence the state of the other entangled particle simultaneously. In this paper, some concepts related to quantum entanglement, such as EPR correlation, quantum entanglement correlation function, Bell’s inequality and so on, are analyzed in detail. Analysis shows that the mystery and confusion in quantum theory may be caused by the logical problems in its basic framework. Bell’s inequality is only a mathematical theorem, but its physical meaning is actually unclear. The Bell state of quantum entangled pair may not satisfy the dynamic equation of quantum theory, so it cannot describe the true state of microscopic particles. In this paper, the correct correlation functions of spin entanglement pair and photonic entanglement pair are strictly derived according to normal logic. Quantum theory is a more fundamental theory than classical mechanics, and they are not equal relation in logic. However, there are still some unreasonable contents in the framework of quantum theory, which need to be improved. In order to disclose the real relationship between quantum theory and classical mechanics, we propose some experiments which provide intuitionistic teaching materials for the new interpretation of quantum theory. 展开更多
关键词 Quantum Mechanics Interpretation mathematical foundation of Quantum Mechanics EPR Correlation Bohm’s Hidden Variable Theory Quantum Entanglement Bell’s Inequality Quantum Correlation Function Schrödinger Equation Heisenberg Uncertainty Relation
下载PDF
The Teaching Reform of“Automatic Control Theory”Course
6
作者 Rui Yang 《IJLAI Transactions on Science and Engineering》 2024年第3期19-25,共7页
Modern control theory course is a compulsory course for automation majors.It is based on automatic control theory course and plays an important role in teaching process.In view of the problems in the teaching of moder... Modern control theory course is a compulsory course for automation majors.It is based on automatic control theory course and plays an important role in teaching process.In view of the problems in the teaching of modern control theory,such as abstract content and weak mathematical foundation,this paper puts forward some reform suggestions from the aspects of teaching method,mathematical foundation,and the difference and connection with the course of automatic control theory,in order to improve students’learning interest and teaching quality.Based on the analysis of the teaching status of automatic control theory in School of Electronic and Electrical Engineering of Zhengzhou University of Science and Technology,combined with the reform needs of ideological and political needs,teaching methods,assessment and evaluation,this paper puts forward a multi-dimensional curriculum reform with“moral education as the center”and“case type”+“online and offline hybrid”+“ideological and political”Thinking.Some results have been obtained through practice. 展开更多
关键词 Automatic control theory Weak mathematical foundation Learning interest Teaching quality
原文传递
ROTATED COMPLEX EMPIRICAL ORTHOGONAL FUNCTION(RCEOF)ANALYSIS:THEORY AND EXAMPLES—PART I 被引量:2
7
作者 李晓东 《Acta meteorologica Sinica》 SCIE 1999年第1期1-10,共10页
In this paper,a new diagnostic method,the rotated complex empirical orthogonal function (RCEOF)analysis is developed.The general principle and the mathematical foundation of RCEOF are discussed.
关键词 emprical orthogonal function (EOF) rotated complex EOF (RCEOF) mathematical foundation diagnosis analysis
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部