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주방 GCD 70 구상흑연 주철의 기계적 성질 및 흑연형상에 미치는 주물 두께의 영향
김창주,윤한상 대한금속재료학회(대한금속학회) 1984 대한금속·재료학회지 Vol.22 No.6
Casting thickness influences mechanical property and graphite shape in ductile cast iron and the results from this study are as follows: 1) The strength and the hardness were decreased rectilinearly as the casting size increased from Ø25㎜ to Ø100㎜ and were nearly same at the size of Ø100㎜ and 150㎜. 2) The strength and the hardness were appeared homogeneous in every step bar of the same thickness. 3) The best ductility was obtained at Ø50㎜. 4) The maximum diameter of huge graphite nodule was 130㎛.
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보기, 보양, 온리약의 전처치가 glutamate current에 미치는 영향
김창주,김연정,김현배,김이화,이충열,Kim, Chang-Ju,Kim, Youn-Jung,Kim, Hyun-Bae,Kim, Ee-Hwa,Lee, Choong-Yeol 대한동의생리학회 1999 동의생리학회지 Vol.14 No.2
The effects of Bogi, Boyang and Onri herbs on glutamte receptor, and the regulatory mechanism of cAMP-protein kinase on the ion currents activated by Bogi, Boyang and Onri herbs using nystatin-perforated patch clamp were investigated and the following results were obtained. Ginseng radix and Astragali radix, Cervi cornu and Boshniakiae herba, and Aconiti tuber and Zingiberis rhizoma were chosen as Bogi, Boyang and Onri herbs respectively. 1. The ion currents activated by $10^{-5}M$ of glycine were used as controls. The magnitudes of the ion currents by the above named herbs were as follows; Cervi cornu>Astragali radix>Aconiti tuber>Zingiberis rhizoma>Ginseng radix>Boshniakiae herba. 2. The magnitudes of the ion currents by $10^{-5}M$ of glutamate pre-treated with 0.01 mg/ml of Bogi, Boyang and Onri herbs were sharply decreased. 3. The activity of ion channels activated by Bogi herbs pre-treated with $10^{-7}M$ of staurosporin, an inhibitor of protein kinase, for thirty seconds was observed as the experiment proceeded. Staurosporin brought about dephosphorylation of ion channels. Hence, while the activity of ion channels activated by Ginseng radix was decreased, the activity of ion channels activated by Astragali radix was increased, as time went by. 4. The activity of ion channels activated by Boyang herbs pre-treated with $10^{-7}M$ of staurosporin, an inhibitor of protein kinase and an dephosphorylating agent of ion channels, for thirty seconds was investigated. While the activity of ion channels activated by Cervi cornu was increased, the activity of ion channels activated by Boshniakiae herba was initially increased then sharply decreased. 5, The activity of ion channels activated by Onri herbs pre-treated with $10^{-7}M$ of staurosporin, an inhibitor of protein kinase and an dephosphorylating agent of ion channels, for thirty seconds was investigated. While the activity of ion channels activated by Aconiti tuber was increased, that of ion channels activated by Zingiberis rhizomal sharply declined.
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