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Lee, Euichan 한국외국어대학교 외국학종합연구센터 부설 기초과학연구소 1996 기초과학연구 Vol.4 No.-
It was shown that if M is a quasi-injective module and N is a continuous module which is a direct summand of any quasi-injective module containing N, and if f:M →N and g:N →M are monomorphisms, then M is isomorphic to N. Hence two quasi-injective modules which are isomorphic to submodules of each other are isomorphic.
A Note on Quasi-injective Modules
LEE, EUICHAN,LIM, MOKHWA 한국외국어대학교 외국학종합연구센터 부설 기초과학연구소 2003 기초과학연구 Vol.16 No.-
In general, a finite direct sum of quasi-injective modules need not be quasi-injective. In this note, it is shown that if M₁ and M₂ be modules, then M₁○M₂ is quasi-injective if and only if M_(i) is M_(j)-injective for all i, j.
LEE, EUICHAN 한국외국어대학교 외국학종합연구센터 부설 기초과학연구소 1993 기초과학연구 Vol.3 No.-
It was shown that every continuous module has the finite exchange property. Let R be a nonsingular right continuous ring and M atorsion free R-module. It was shown that M is a finitely generated regular module if and only if M is a finite direct sum of cyclic continuous modules.
LEE, EUICHAN 한국외국어대학교 외국학종합연구센터부설기초과학연구소 1991 기초과학연구 Vol.2 No.-
We obtained a characterization of regular rings which are right self-injective. Let M be a nonsingular module, S = End(M), and Q = End(E(M)). It was shown that if for every nonzero cyclic submodule N of M there exists an epimorphism from M onto N, then Q is the injective hull of S??.
Quotient Rings of Endomorphism Rings of Nonsingular Modules
Lee, Euichan 한국외국어대학교 외국학종합연구센터 부설 기초과학연구소 1996 기초과학연구 Vol.5 No.-
Let M be an R-module, S=End(M), and Q=End(E(M)). We show that if M is a regular module, then S is right nonsingular and Q=E(Ss). We also show that if M is a finite dimensional regular module, then Q is a semisimple classical right quotient ring of S.
On Injective Hulls of Endomorphism Rings of Nonsingular Continuous Modules
Lee, Euichan 한국외국어대학교 외국학종합연구센터 부설 기초과학연구소 1989 기초과학연구 Vol.1 No.-
We obtained a characterization of a ring which possess a strongly regular classical right quotient ring. Let M be a nonsingular continuous module, S = End(M), and Q = End(E(M)). We proved that if Q is unit regular and M is a characteristic submodule of E(M), then Q is the injective hull of S??. We also showed that if M is uniform and T(Q/S)=Q/S, then Q=E(S??) and Q is a strongly regular classical right quotient ring of S.
LEE, EUICHAN 한국외국어대학교 외국학종합연구센터 부설 기초과학연구소 1999 기초과학연구 Vol.9 No.-
Let M be an R-module, S=End (M). We show that if M is a regular module and S is a right CS ring, then M is a CS module.
4족 보행 로봇과 시각장애인의 상호작용을 위한 Strain Gauge 및 FSR 센서 기반 Harness 시스템 개발
김동주(Dongju Kim),김지윤(Jiyun Kim),양용훈(Yonghun Yang),이동영(Dongyoung Lee),이정민(Jungmin Lee),허의찬(Euichan Heo),이인호(Inho Lee),정우성(Woo-Sung Jung) 대한전자공학회 2024 대한전자공학회 학술대회 Vol.2024 No.6
In this paper, we implement harness system using strain gauge-based and FSR (Force Sensitive Resister) sensor-based handles for interaction between quadruped robot and the blind. We compare the pros and cons of two sensors when sensing tensional/compressional or torsional force from human’s hand. Our findings demonstrate the harness system’s ability to differentiate between mere grasping, pulling and twisting of the handle. By using the trend of this data, the user can easily interact with the quadruped robot without physical switch or additional devices.
4족 보행 로봇과 시각장애인의 상호작용을 위한 Strain Gauge 및 FSR 센서 기반 Harness 시스템 개발
김지윤(Jiyun Kim),김동주(Dongju Kim),양용훈(Yonghun Yang),이동영(Dongyoung Lee),이정민(Jungmin Lee),허의찬(Euichan Heo),이인호(Inho Lee) 대한전자공학회 2024 대한전자공학회 학술대회 Vol.2024 No.6
In this paper, we implement harness system using strain gauge-based and FSR (Force Sensitive Resister) sensor-based handles for interaction between quadruped robot and the blind. We compare the pros and cons of two sensors when sensing tensional/compressional or torsional force from human’s hand. Our findings demonstrate the harness system’s ability to differentiate between mere grasping, pulling and twisting of the handle. By using the trend of this data, the user can easily interact with the quadruped robot without physical switch or additional devices.