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최인용(I.Y.Choi),전광민(K.M.Chun),박철웅(C.W.Park),한재원(J.W.Hahn) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_1
End gas temperatures were measured by CARS(Coherent anti-Stokes Raman spectroscopy) technique in a constant volume combustion chamber. The temperatures of unburned and burned gas for premixed propane-air flame were measured for different initial temperature conditions. The measured temperature profiles were compared with predicted results of simulation performed using a 2-zone flame propagation model. The measured temperatures of the unbumed gas were distinguished from that of the burned at the flame sheet. The unbumed gas temperatures varied between 400 K and 600 K and the standard deviation of 10 measurements at each measuring time was about ±40 K. The predicted results of simulation confirmed the measured temperatures in each zone.<br/>
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.