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이승조,박정민,김화중 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)
The purpose of this study is to obtain data on the structural properties of the high-strength lightweight concrete slab contained garnet for various applications in the structural field. For the purpose of investigating the properties followed by changing I-layer slab specimen(HSLC, HSC) and the 2-layer slab specimen(upper the HSLC+lower the HSC, using the emulsion resin paste painting of the joint area for an increment of the bond-strength), the mix proportion of this study is set up as W /B is fixed 30%, garnet is substituted by 10% and the SI A is 45%. From the results of experiment, the use of 2-layer slab specimens are expected to resemble capacity and deformation of HSC slab.
이세훈,오민화 가톨릭 대학 산업의학 쎈타 산업의학연구소 1991 韓國의 産業醫學 Vol.30 No.4
This study was designed to investigate the effect of styrene-7,8oxide(styrene oxide) on their potentialto induce of sister chromatid exchanges(SCE) in phytohaemagglutinin-stimulated human whole blood lymphocytes cultured for 72 hours. The treatment with styrene or styrene oxide diluted by acetone were carried out 48 hour before harvest. The concentration of styrene was 1.0,1.5 and 2.0 mM and that styrene oxide was 50 and 100 M, and control group was treated wiht acetone only. A dose-dependent increase of SCE was observed in lymphocytes treated with styrene or with styrene oxide. The toxictiy of styrene oxide was about 15times of that of styrene considering the ability of inducing SCE in the cultured human lymphocytes and cell replicationindex. This study result was on the line that the active metabolite formed from styrene through the action of the erythrocytes is styrene oxide.