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The solution of differential equations with fuzzy coefficients
권영철(Young-Chel Kwun),박동근(Dong-Gun Park),김선유(Sun-Yu Kim),박종서(Jong-Seo Park) 한국지능시스템학회 2005 한국지능시스템학회 학술발표 논문집 Vol.15 No.2
This paper we consider the solution of differential equations with fuzzy coefficients generated by fuzzy number 1 using two different methods with eigenvalues and eigenvectors.
Controllability of the nonlinear Fuzzy Integro-Differential Equation on Eⁿ<SUB>N</SUB>
권영철(Young-Chel Kwun),박동근(Dong-Gun Park),손기도(Ki-Do Son),정두환(Doo-Hwan Jeong) 한국지능시스템학회 2004 한국지능시스템학회 학술발표 논문집 Vol.14 No.2
In this paper we study the controllability for the nonlinear fuzzy integro-differential equations on EⁿN by using the concept of fuzzy number of dimension n whose values are normal, convex, upper semicontinuous and compactly supported surface in Rⁿ. EⁿN be the set of all fuzzy numbers in Rⁿ with edges having bases parallel to axis X₁, X₂,…, Xn.
Controllability for the Semilinear Fuzzy Integrodifferential Equations with Nonlocal Conditions
Young Chel Kwun(권영철),Dong Gun Park(박동근),Gyu Tak Choi(최규탁) 한국지능시스템학회 2006 한국지능시스템학회 학술발표 논문집 Vol.16 No.1
In this paper. we study the controllability for the semilinear fuzzy integrodifferential control system with nonlocal condition in EN by using the concept of fuzzy number whose values are normal, convex, upper semicontinuous and compactly supported interval in EN.
Asymptotic Behavior of Solutions for the Delay Semilinear Fuzzy Integrodifferential Systems
Young Chel Kwun(권영철),Dong Gun Park(박동근),Bu Young Lee(이부영),Jin Soo Hwang(황진수) 한국지능시스템학회 2010 한국지능시스템학회논문지 Vol.20 No.6
In this paper, we study the asymptotic behavior of solutions for the delay semilinear fuzzy integrodifferential systems on E¹N by using the concept of fuzzy number whose values are normal, convex, upper semicontinuous and compactly supported interval in E¹N
Young Chel Kwun(권영철),Jeong Soon Kim(김정순),Min Ji Park(박민지),Dong Gun Park(박동근),Bu Young Lee(이부영) 한국지능시스템학회 2010 한국지능시스템학회 학술발표 논문집 Vol.20 No.1
In this paper, we study the existence and uniqueness of solutions for the impulsive semilinear fuzzy integrodif-ferential equations with non local conditions and forcing term with memory in n-dimensional fuzzy vector space (EN)ⁿ by using Banach fixed point theorem.
Young Chel Kwun(권영철),Young Chel Ahn(안영철),Dong Gun Park(박동근),Seon Yu Kim(김선유) 한국지능시스템학회 2007 한국지능시스템학회 학술발표 논문집 Vol.17 No.1
In this paper. we study the controllability for the semilinear fuzzy integrodifferential equations with nonlocal condition and forcing term with memory in EN by using the concept of fuzzy number whose values are normal, convex, upper semicontinuous and compactly supported interval in EN.
이춘만,박동근,임상헌 한국공작기계학회 2005 한국공작기계학회 춘계학술대회논문집 Vol.2005 No.-
A machining center is a complex dynamic system whose behavior influences the machining stability and machined surface quality. This paper focused on establishment of a measurement system and experimental study on static, dynamic, and modal analysis of a machining center. The dynamic stiffness result by the analysis showed the weak part of the machining center. The results provided structure modification data for getting better dynamic behaviors.