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솔잎혹파리 내충성 (耐蟲性) 품종 육성에 관한 연구 2. 솔잎혹파리 내충성 Pinus thunbergii 의 침엽내 monoterpene 의 계절적변화
김정석,홍성호,류장발,최철,김종수 ( C . S . Kim,S . H . Hong,J . B . Ryu,C . Choi,J . S . Kim ) 한국산림과학회 1976 한국산림과학회지 Vol.32 No.1
Employing 7-15 resistant and 8-15 susceptible Japanese black pine (Pinus thunbergii Parl.) trees to pine gall midge (Thecodiplosis japonensis Uchida et Inouye) as samples, needle monoterpenes were analysed by GLC in January and June, and observation was made on the oviposition preference. Following results were obtained. 1. In January, the resistant trees showed higher contents of myrcene, limonene, β-phellandrene and terpinolene but lower contents of α-and β-pinene and camphene compared to the susceptible trees. But in June, α-pinene, camphene, limonene, β-phellandrene and terpinolene were higher and the content of β-pinene and myrcene were lower in the resistant trees than the susceptible trees. 2. The content of limonene was higher by the 6.8 percent and the content of β-pinene was lower by the 9.2 percent in the resistant trees than in the susceptible trees in June. 3. No preference for oviposition was found between resistant and susceptible trees. But in the resistant trees gall formation rate was quite lower than the susceptible trees. It was considered, therefore, that limonene and β-pinene content in the needle might be used as an indicator of the resistant Japanese black pine to the pine gall midge regardless of season.
솔잎혹파리 耐蟲性 品種 育成에 關한 硏究 Ⅱ. 솔잎혹파리 耐蟲性 Pinus thunbergii의 針葉內 Monoterpene의 季節的 變化
C. S. KIM(金鼎錫),S. H. HONG(洪性昊),J. B. RYU(柳長發),C. CHOI(崔澈),J. S. KIM(金鍾秀) 한국육종학회 1976 한국육종학회지 Vol.8 No.3
Employing 7-15 resistant and 8-15 susceptible Japanese black pine (Pinus thunbergii Parl.) trees to pine gall midge (Thecodiplosis japonensis Uchida et Inouye) as samples, needle monoterpenes were analysed by GLC in January and June, and observation was made on the oviposition preference. Following results were obtained. 1. In January, the resistant trees showed higher contents of myrcene, limonene, β-phellandrene and terpinolene but lower contents of α-and β-pinene and camphene compared to the susceptible trees. But in June, α-pinene, camphene, limonene, β-phellandrene and terpinolene were higher and the content of β-pinene and myrcene were lower in the resistant trees than the susceptible trees. 2. The content of limonene was higher by 6.8 percent and the content of β-pinene was lower by 9.2 percent in the resistant trees than in the susceptible trees in June. 3. No preference for oviposition was found between resistant and susceptible trees. But in the resistant trees gall formation rate was quite lower than the susceptible trees. It was considered. therefore, that limonene and β-pinene content in the needle might be used as an indicator of the resistant Japanese black pine to the pine gall midge regardless of season.
초음파 원자 현미경을 이용한 재료 표면의 탄성 이미지화
김정석(C. S. Kim),박태성(Tae-Sung Park),박익근(Ik-Keun Park),이승석(Seung Seok Lee),이창준(C. J. Lee) 한국비파괴검사학회 2009 한국비파괴검사학회지 Vol.29 No.4
본 연구에서는 나노 표면층의 특성 평가를 위해 원자현미경에 초음파 특성을 결합하여 초음파 원자 현미경을 개발하였다. 초음파 원자 현미경은 기존의 나노 표면층에 대한 토포그래프 이미지뿐만 아니라 국부적인 이종부분으로 이루어진 표면에서의 물리적 특성차이에 의한 표면의 탄성 특성 이미지를 얻을 수 있다. 본 연구에서는 프로토타입의 UAFM 장치를 구성하고 이를 몇몇 응용분야에 적용하였다. 구축한 프로토타입의 UAFM 시스템을 이용하여 증착 실리콘 박막층과 냉간 압조용 강의 구상화 그리고 탄소 섬유 강화 복합재료의 표면에 대한 탄성 이미지를 성공적으로 얻을 수 있었다. The ultrasonic atomic force microscope(UAFM) has been developed in order to enhance the characterization technology for nano-scale surface combining ultrasonic property to atomic force microscope. This UAFM technique enables elasticity imaging due to the physical properties on the heterogeneous surface in addition to the novel topography of surface height in the nano-surface layer. In this study, the prototype UAFM system was constructed and applied to several materials, silicon deposited wafer, spherodized cold heading steel, and carbon fiber reinforced plastic specimen. Clear elastic contrast was successfully obtained using this developed prototype UAFM.