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한국산 중생대 백악기 거미화석 (거미목: 닷거미과) 보고
김주필(Joo-Pil Kim),남기수(Ki-Soo Nam) 한국거미연구소 2008 한국거미 Vol.24 No.2
This paper reports one species, Pisaura sp. Type specimen of Pisaura sp. was excavated from gooho-Li, chookdong-myun, sachoeun-si, Kyungsangnam-do, Korea. Inside a stratum the mesozoic era (creataceous period). Type specimen of Pisaura sp. is deposited The Arachnological Institute of Korea. 한국 경상남도 사천시 축동면 구호리의 중생대 백악기 셰일(shales) 지층에서 최초로 발굴된 한국산 닷거미과, 서성거미속 일종 Pisaura sp.를 보고한다.
三成分系 混成 强化 Plastics의 機械的 性質에 關한 硏究(1)
南基守,金宗植 啓明大學校 産業技術硏究所 1990 産業技術硏究所 論文報告集 Vol.13 No.1
Mechanical properties (such as tensile strength, elongation, flexural strength, flexural modulus, Izod impact strength, Rockwell hardness and melt index) of Hybrid composites, which was filled with Glass Fiber and CaCO₃with Nylon used as Polymer matrix, were investigated in terms of filler and GF contents. Tensile strength, elongation, flexural strength, Izod impact strength, Rockwell hardness and melt index showed higher level of properties when polymer matrix was reinforced by GF alone than when untreated CaCO₃was used as filler.
高分子 强化 polyamide의 力學的 特性에 關한 硏究
金宗植,南基守 啓明大學校 産業技術硏究所 1990 産業技術硏究所 論文報告集 Vol.12 No.-
Nylon-6 resin reinforced with glass fiber and carbon fiber was made according to weight percentage of glass and carbon fiber from 5 to 45 respectively. And the fiber reinforced composites were molded into three kinds of specimen for the purpose of the measurement of mechanical properties. The items of the measured properties were tensile strength, elongation, flexural strength, Izod impact strength, melt index and heat deflection temperatures. As the viscosity, diameter of the nylon and the amount of fiber addition increase melt index decreased. In the most of the mechanical Properties TOHO RAYON carbon fiber reinforced composites revealed better results than glass fiber reinforced ones except melt index and Izod impact strength.
신재철,남기수,정인수,한성호 충남대학교 산업기술연구소 2001 산업기술연구논문집 Vol.16 No.1
The cable-stayed bridges are composed of cables, towers and girders. when the cable-stayed bridges are loaded, the whole structure display very complex behavior due to excessive cable deflection. Eventhough the material in the members of a cable-stayed bridge structure behaviors in a linear elastic manner. the overall load-displacement relationship for the structure will be nonlinear. The nonlinear behavior is a result of: due to the sag caused by their own dead weight and the nonlinear axial and bending force-deformation relationships for the bend members. In the construction stage analysis, some technical approaches and structure safety are needed to stimulate numerically the complicated changes of structural system during construction. In this study static and construction stage analysis is performed and compared. Static and construction stage analysis on unsymmetric Cable-stayed bridge is performed and linear and nonlinear analysis is performed to evaluate the structure characteristics. After Static analysis of final construction stage was performed, construction stage analysis was performed.
곤충 병원성 선충에 의한 집누에 감염증과 병인론적 발병생리
한상미,남기수,한병세 한국잠사학회 1998 한국잠사곤충학회지 Vol.40 No.2
Entomopathogenic nematodes, Heterorhabditidae and Steinernematidae, were isolated from the soil of mulberry field, and the high infectivity and invesiveness were confirmed in the silkworm,Bombyx mori. The cause of non-microbial and acute flacherie was found as an disease by infection with soil-born nematodes tjrough the mulberry leaves contaminated with soil and rainwater. The causal nematodes were isolated by silkworm trap from all of the 5 soil samples collected on the 5 mulberry fields, and identified as 3 strains of Heterorhabditis sp. And 2 of Steinernema sp. Rainwater itself, however, wasn't engaged in the silkworm disease, mulberry leaves with rainwater was rather profitable for cocoon production when the leaf quality was too hard to feed silkworm. Feeding of wet mulberry leaves with rain might not so harm to silkworm when the condition of rearing room to be kept at suitable temperature and ventilated well. Nematode infection of silkworm could be occurred by harvesting and feeding of contaminated mulberry leaves on the weather condition of rainy and wind. For the prevention of nematode infection, silkworms should be fed the leaves harvested from the higher portion of the mulberry tree in rainy days. For an oppositional application of this susceptibility of silkworms to nematode, might be useful on the collection and amplification of nematode agents for biotic control of pest insects.