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이온교환한 제올라이트 A 의 연료기체 분자 저장 특성 3 . A zeolite의 8원환 window상에서의 CO 흡착이론
이종렬,허남호,김동현,김종택 ( Jong Ryul Lee,Nam Ho Heo,Dong Hyun Kim,Jong Taik Kim ) 한국화학공학회 1992 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.30 No.6
Atomic charges, bond order, stabilization energys of 8-membered ring window structures on Na^+, K^+, Mg^(2+), Ca^(2+) saturated A-zeolites, in the course of CO adsorption process, have been calculated by CNDO/2 MO method. Localization of Na^+ ion and Mg^(2+) ion within the 8-membered ring plane was calculated. Dihedral angles of CO molecules adsorbed on the cations were 75°for Na^+-A, 62.7° for Mg^(2+)-A, 48.5° for K^+-A and 89° for Ca^(2+)-A. Adsorption process of CO on the Na^+-A was performed by two step approach and the indicated highest adsorption energy due to the covalent bond with the cation. Adsorption energies of CO on the cation were in the decreasing order; Na^+-A>Mg^(2+)-A>K^+-A>Ca^(2+)-A.
이종렬,이상희,Lee, Jong-Ryol,Lee, Sang-Hee 한국응급구조학회 2015 한국응급구조학회지 Vol.19 No.3
Purpose: This study aimed to investigate the prevalence of musculoskeletal symptoms (MSSs) and their correlation with subjective health condition (SHC) among emergency medical technicians (EMTs). Methods: A self-reported questionnaire was disseminated to EMTs (N=257) at emergency medical institutions and fire stations. Results: The prevalence of MSSs was very high in the studied EMTs: 88.3% reported having MSSs. The most commonly affected site was the lower back (73.9%) followed by the neck (56.8%) and the shoulder (55.6%). MSSs were more common in women than in men, and its frequency increased with age. MSSs in the neck and shoulder were more increased in EMTs with < 1 year of service. MSSs in the hand / wrist / finger or leg / foot were significantly increased in EMTs of emergency medical institutions than those of fire stations. Job satisfaction was significantly lower in those with MSSs of the lower back. The subjective heath condition was decreased with age, marriage, or smoking. There was significant corelation between MSSs and SHC. Conclusion: This study suggests that MSSs are a reasonably common problem for EMTs, and that solutions need to be imposed such as some actual tasks or items related to work postures, work control, and work organization.
이종렬,Lee, Jong-Ruyl 한국디지털건축·인테리어학회 2006 한국디지털건축인테리어학회 논문집 Vol.6 No.2
This study is investigates space syntax theory, developed by Bill Hiller, used for physical analysis and visual access of space and role of spatial configuration based on social logic. it mean computer program analyze physical structure of space and represent by mathematical logic. it used for predict space use and Descriptive of spatial configuration. This method and theory is incompletion for design, but it enough useful tool for architecture and urban design and will be improved. And development of a simple computer program - SSA(Sspace Syntax Analysis) for space syntax analysis and study. SSA is based on convex map analysis and using VISIO software for easily using and development.