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김인수,하훈,서원술,배주순,문희,박철웅,오은하,이소영,김명혜,kim, I.S.,Ha, H.,Seo, W.S.,Bae, J. S.,Mun, H.,Park, C.U.,Oh, E.H.,Lee, S.Y.,Kim, M.H. 한국환경보건학회 1998 한국환경보건학회지 Vol.24 No.1
This study was performed to investigate the Natural mineral water quality at 47 sites in Chonnam area, samples were collected spring, summer, fall, winter for a seasonal variation in 1996. The results obtained were summarized as follows 1. The mean of F, pH, HCO$_3$, NO$_3$ -N were 0.19 mg/l, 6. 9, 34.99 mg/l, 1.40 mg/l and those of Na, K, Ca, Mg were 12.1 mg/l, 1.2 mg/l, 7.7 mg/l, 2.1 mg/l respectively. 2. The contents of F were reasonable at Multonggol as 1.35 mg/l and Yongbayui as 0.57 mg/l respectively, but there is no detected at Sidong and detected below 0.1 mg/l at Gubongsan, Hansansa area. 3. According to the geological effect, the content of F was showed higher in granite than in tuff, and index of pH was higher in tuff than in andesite, and content of HCO$_3$ was higher in andesite than in granite. 4. The K and O values were used as index of healthy and delicious water. As a result, thirtyfive sites(74.5%) was decided as healthy and delicious water. 5. The contents of NO$_3$-N were detected over 5 mg/l at Sukchonsa, Gajanggol, Yudalsan, Muchang, Kisan.
김인수(I. S. Kim),박보용(B. Y. Park) 한국자동차공학회 1996 한국자동차공학회 학술강연초록집 Vol.1996 No.10
Due to the speed fluctuation of an engine-crankshaft rotational vibrations in driveline occur excessively and disturbances of valve timing for example can be caused as a consequence. This paper presents the analysis of speed fluctuation mechanism through simulation of model for the crankshaft system, and a method of speed fluctuation reduction attaching a tuned dynamic damper to the crankshaft, which shows the reduction of 9dB(66%) of speed fluctuation at the I. journal bearing improving the vibrational and acoustical quality of driveline.
최영휴(Y. H. Choi),장성현(S. H. Jang),김인수(I. S. Kim),오창환(C. H. Oh),조용주(Y. J. Cho) 한국생산제조학회 2006 한국생산제조시스템학회 학술발표대회 논문집 Vol.2006 No.5
In this paper, dynamic analysis a spindle system for 5-axis multi-tasking machine by using ADROS, which is our own developed S/W for dynamic design analysis of rotor systems. As the result, the critical speed of our spindle system for 5-axis multi-tasking machine is above twice of the operating speed.
최영휴(Y. H. Choi),장성현(S. H. Jang),김인수(I. S. Kim),오창환(C. H. Oh),조용주(Y. J. Cho) 한국생산제조학회 2006 한국공작기계학회 춘계학술대회논문집 Vol.2006 No.-
In this paper, dynamic analysis a spindle system for 5-axis multi-tasking machine by using ADROS, which is our own developed S/W for dynamic design analysis of rotor systems. As the result, the critical speed of our spindle system for 5-axis multi-tasking machine is above twice of the operating speed.
대두(大豆) 단백질(蛋白質)에 관(關)한 연구(硏究) 제2보[第二報]-7S Globulin중의 복합단백질(複合蛋白質)의 분리(分離) 및 그 구성(構成) Subunit에 대하여
이춘영,김인수,김수언,Lee, C.Y.,Kim, I.S.,Kim, S.U. 한국응용생명화학회 1977 Applied Biological Chemistry (Appl Biol Chem) Vol.20 No.1
대두(大豆)(Glycine max cultivar Gwang-gyo)의 각 성숙시기(成熟時期)에 나타나는 7S globulin을 분리하여 Davis 방법(方法)에 의한 전기영동과 PAWU용매에 의해서 유리(遊離)되는 그들의 subunit를 전기영동한 결과 7S globulin중의 복합단백질간(複合蛋白質間)에는 그 구성(構成) subunit에 유사성(類似性)이 있음을 시사하였다. 7S globulin의 복합단백질(複合蛋白質)을 DEAE-Sephadex A-50으로 크로마토그라피하여 분리하였다. 이때 pH 7.6의 인산완충액(燐酸緩衝液)에서 NaCl의 농도구배(濃度句配)가 0.28M부터 0.40M 사이에서 두 개의 분획(分劃)으로 분리되었다. 이들 명(名) 단백질(蛋白質)의 subunit를 5M urea와 1% SDS로 유리(遊離)시켜 7.5% acrylamide-PAWU gel과 5.6% acrylamide-SDS gel에서 전기영동하였다. 그 결과 subunit의 하전량(荷電量)에 의해서 분리되는 PAWU gel전기영동에서 7S globulin이 5개의 주 분리대로 분리되고 그중 2개의 분리대가 7S-A globulin과 7S-B globulin에 공유(共有)되어 있었다. 또 subunit의 분자량(分子量)에 따라서 분리되는 SDS gel 전기영동에서는 7S globulin이 7개의 주 분리대를 나타내는데 그 중에서 3개의 분리대가 7S-A와 7S-B 분획에 공유(共有)되어 있었다. 따라서 7S globulin의 복합단백질간(複合蛋白質間)에는 구성(構成) subunit간(間)에 유사성(類似性)이 있는 것으로 나타났다. The multiple 7S globulins composed of two fractions (A and B) in the electrophoresis with Davis' method were isolated at different stages of the soybean seed development. Electrophoresis of their subunits liberated in PAWU solvent [phenol-acetic acid-water (2 : 1 : 1) solution plus 5M urea] yielded 4 major bands. Observation of both the electrophoretic bands of the multiple 7S fractions(7S-A and 7S-B) and those of their subunits was suggestive of a similarity of the subunit pattern between two 7S fractions. The two fractions in multiple 7S globulins were isolated with DEAE-Sephadex A-50 column$(2.0{\sim}100cm)$ chromatography. They were separated into 2 fractions in a linear gradient concentration of 0.28 to 0.40M NaCl with phosphate buffer (pH 7.8) containing 10mM ${\beta}-mercaptoethanol$(ME). The isolated protein was dissociated into subunits with two different solvent systems; in PAWU solvent and in Tris-HCl buffer(pH 8.0) containing 1% sodium dodecyl sulfate (SDS) and 40mM ME. The dissociated subunits were subjected to electrophoresis in PAWU-treated 7.5% acrylamide gel and in 1% SDS-treated 5.6% acrylamide gel. In PAWU gel electrophoresis, total 7S globulin was separated into 5 major bands, two of which were occupied in common by two 7S fractions(7S-A and 7S-B). In SDS gel electrophoresis, total 7S globulin was separated into 7 major bands, three of which were overlapped with the subunit of the two 7S fractions. The above results alluded us to the presence of a common and/or similar subunit between the multiple 7S globulins.