『草枕』の 世界

柳相熙 全南大學校 人文科學硏究所 1983 용봉인문논총 Vol.13 No.-

제주도에서의 빗물 이온 농도 분석

심상규,강창희,김용표 濟州大學校 基礎科學硏究所 1994 基礎科學硏究 Vol.7 No.1

Precipitation samples were collected at Kosan, Cheju Island over a period of 6 months. An automatic rain sampler was manufactured domestically and installed at Kosan station. All samples were collected on a weekly basis. Samples were analyzed for ??, ??, ??, ??, ??, ??, ??, ??, and pH and specific conductivity. The quality analysis of rain sample data were performed based on ion balance and specific conductivity. The pH of rain samples ranged between 4.6 to 6.6. Bicarbonate ion concentration were included in ion balance and specific conductivity calculations. The sum of cation concentrations were slightly greater than the sum of anion concentrations. Calculated specific conductivity was greater than measured specific conductivity. The most probable explanations for this discrepancy is “an anion too low or anion missing." Two criteria were used to identify outliners. They are 1) the difference between the sum of anion concentrations and cation concentration is more than 50μeq/l and 2) the difference between calculated and measured specific conductivity is more than 25%. Chemical analysis from several samples did not satisfy these quality control criteria. Volume weighted average concentrations were calculated. Dominant free acids in rain samples were ??, ??, ??, ?? ions in order of abundance. Non-seasalt sulfate comprises 76% of total sulfate.

漱石の『吾輩は猫である』と春園の『千眼記』との比較 : 動物の동きと諷刺性を中心に

柳相熙 全南大學校 人文科學硏究所 1982 용봉인문논총 Vol.12 No.-

Al-Zn-Mg 系 合金의 熱分析 硏究

李相和,李俊熹 동아대학교 환경문제연구소 1984 硏究報告 Vol.7 No.2

T₄ and T_(6) treated test alloy were investigated by the D. S. C. analysis. Low temperature exothermic reaction which caused by dissolution of G. P. Zone was formed during the aging at room temperature, and has relationship to the preformed precipitates, by which classical precipitation path can be changed to the modified precipitation path. In the D. S. C. curve, the region of low temperature endothermic reaction is due to the dissolution of G. P. Zones, and the region of high temperature endothermic reaction is associated with the disslution of equilibrium phase η, and the formation of η', η, and the growth of η appear at the middle region of temperature. Kinetics which related to the precipitation process of high strength Al alloy can be investigated with the aid of D. S. C. analysis more easily. The relative stability of precipitate in matrix grows down in the sequence of η, η' and G. P. Zone, and is mainly depended upon the activated entropy.

청정 지역 강우의 분석 : 1997-1998년 한라산 1100 고지와 제주시 강우의 특성 Characteristics of Rainwater at 1100 Site of Mt. Halla and Cheju City in 1997-1998

강창희,김원형,홍상범,이기호,홍민선,심상규 濟州大學校 基礎科學硏究所 2000 基礎科學硏究 Vol.13 No.1

The rainwater samples were collected from the 1100 Site of hlt. Halla and Cheju city during the period of March in 1997 to August in 1998. and the major soluble ions were analyzed. The confidence of analytical data was confirmed by using the comparison methods such as ion-balance, electric conductivity and acid fraction. all of which correlation coefficients were above 0.94. The ionic strengths lower than 10^(-4)M, the basis for the pure rainwater, were found in 47% and 38% at 1100 Site and Cheju city, respectively. The precipitations in Cheju city were more influenced by the oceanic effect than those in 1100 Site. The acidity contribution was mainly by SO_(4)^(2-) and NO_(3)^(-) in both areas. and the organic acids have contributed to the acidity with only 5-7%. The neutralization factors by NH_(3) were about 46% at both 1100 site and Cheju city, whereas those by CaCO_(3) were 11% and 15% at 1100 site and Cheju city respectively, and the free acidity were both about 35% in average. From the MSA analysis. it was found that the air in Cheju island has been influenced by the pollution from the other areas. The sources of the rainwater components in 1100 Site and Cheju city were also studied with a factor analyzing way and the most probable factors were found to be anthropogenic, oceanic, and soil-sourced. The results of multiple regression analysis have shown that SO_(4)^(??) was dissolved mostly in the form of H_(2)SO_(4), CaSO_(4) and (NH_(4))_(2)SO_(4). and NO_(3)^(-) was in the form of HNO_(3), Ca(NO_(3))_(2) and NH_(4)NO_(3).

참깨의 저온저장중 획분별 지방질의 지방산조성 변화

최상도,김형갑,이을희 진주산업대학교 농업기술연구소 1990 農業技術硏究所報 Vol.3 No.-

참깨를 5, 8, 12개월 저온저장 및 자연저장중 획분별 지방질의 지방산조성 변화를 검토하였다. 지방산조성 변화는 대부분의 획분별지질에서 함량이 가장 큰 리놀레산은 감소한 반면 그 외 지방산은 증가하였으나 스테릴에스테르의 리놀레산은 저온저장중에 약간 증가하였고 올레산은 자연저장 중에 약간 감소하였다. 한편 인지방질의 팔미트산은 감소하였으며 저온저장중에서 올레산은 거의 변화가 없었다. C_18/C16지방산비의 변화는 당지방질, 스테릴에스테르 및 트리글리세리드는 감소한 반면 디클리세리드, 유리지방산 및 인지방질은 증가하였다. 불포화지방산/포화지방산비의 변화는 당지방질, 트리글리세리드, 디글리세리드 및 인지방질은 감소한 반면 유리지방산은 증가하였고 스테릴에스테르는 저온저장중에는 증가하였으나 자연저장중에는 감소하였다. This study was performed to find the change of fatty acid composition during the low temperature storage of sesame seed. The sample seed was kept within the cotton bag(20X27Cm) and the bag was stored in the refrigerator of 5℃. Also, the storing period of sample seed is 5, 8 and 12 months after the harvest time of sesame. The sesame oil was extracted by acetone at the harvest time and each storing time of sample seed. The lipids in sesame oil were fractionated into glycolipid(GL), sterylester(SE), triglyceride(TG), diglyceride(DG), free fatty acid(FFA) and phospholipid(PL) by means of solution was mixed normal hexane with ethylalcohol and thin layer chromatography. Fatty acid composition of each fraction were anlyzed by gas liguid chromatograpy. The linoleic acid content of the GL, SE, TG, DG, FFA and PL was decreased, while the oleic, stearic and palmitic acid content of GL, SE, TG, DG and FFA was increased during the low temperature storage of sesame. But the palmitic acid content of PL was decreased. Also the stearic and oleic acid content of PL was slightly increased. The ratio of C_18 to C_16 fatty acids in GL, SE and TG was decreased, but that of DG, FFA and PL was increased during low temperature storage of sesame. The ratio of unsaturated to saturated fatty acids in GL, TG, DG and PL was decreased, but that of SE and FFA was increased during low temperature storage of sesame.

Maillard 反應에 關한 硏究 : Ⅲ. 아미노산과 5炭糖의 Maillard 反應 Ⅲ. Study on the Maillard Browing of Amino acids and Pentoses

李乙熙,崔相道,吳錫斗,高鏡畢 진주산업대학교 농업기술연구소 1991 農業技術硏究所報 Vol.4 No.-

아미노산과 5炭糖을 121℃에서 15분간 열처리하여 Maillard반응의 發色强度를 비교한 결과는 다음과 같다. 1. 아미노산은 發色强度가 높은것, 중간것, 낮은것으로 대별되었다. 2. 糖은 L(+)arabinose, D(-)-ribose, D(+)-xylose 순으로 發色强度가 높게 나타났다. 3. pH차이에 따른 영향은 反應液의 pH가 높아질수록 反應性은 增加되었다. 4. D(+)-xylose, D(-)-ribose 및 L(+)-arabinose의 농도가 높아질 수록 반응성은 높게 나타났다. Common amino acids and pentoses have been ranked acording to the intensity of Maillard browning formed when heated in an autoclave at 121℃ for 15 min. The results obtained as follows; 1. The amino compounds have been groupeed into high, intermediate and low browning producing groups. 2. The color intensity of pentoses tested was xylose>ribose>arabinose. 3. As the pH values of reaction solutions increased, the color intensity of melanoidins. 4. As the concentrations of xylose, ribose and arabinose increased, the color intensities of melanoidins.

통조림의 初溫 및 冷却이 殺菌에 미치는 影響

姜君中,崔相道,李乙熙,閔永鳳,金泰圭,金炯甲,朱玉守 진주산업대학교 1989 論文集 Vol.27 No.-

살균전 통조림 내용물의 온도와 냉각처리 유무가 통조림의 살균에 미치는 영향을 조사하였다. 살균시간을 최소화하고 레토르트안과 통조림냉점의 두 곳에서 온도를 감지하여 치사율의 적산치를 계속적으로 이행할 수 있는 컴퓨터시스템을 이용하였다. 8% 벤토나이트 분산액을 301-5호관에 채우고 반복 실험을 통해서 내용물의 초온의 차이와 냉각수의 처리 유무 공히 살균시간에 뚜렷한 영향을 미쳤다. The effect of initial can temperatures and water cooling treatment on the cans for thermal sterilization was described. The accumulated lethal rate method based on microcomputer-based electronic system has introduced in this experiments to minimize the process time and provide precise temperature measurements at 2 points with continuous calculation of the lethal rate. According to a series of experiments which were performed by using 301-5 cans of 8% bentonite suspension, there was significant effect in accumulated lethal rate initiated in different temperatures and treated water cooling treatment.

누적외상성질환 위험 요인의 정량적 평가 및 관리를 위한 점검표 개발 : 자동차 조립 작업을 중심으로

이윤근,김현욱,임상혁,박희석 한국산업위생학회 2001 한국산업보건학회지 Vol.11 No.1

Objectives : This study was designed to develop and standardize a checklist for ergonomic risk factors, and to provide ergonomic guidelines for managing cumulative trauma disorders (CTDs) in automobile assembly lines, Methods : The Checklist for Ergonomic Risk Factors(CERF-1) was developed based on the results of previous studies, and then modified after performing pilot study. Information on the symptoms possibly related with CTDs was obtained using a self-reported questionnaire from 465 automobile assembly workers. Their job conditions were examined to assess risk factors through both direct observation and video analysis. Results : Rate of detecting risky job through CERF-1 was 85.6%, and was similar to that (88.8%) by Occupational Safety and Health Adminstration(OSHA) checklist but higher than that (63.7%) by American National Standards Institute(ANSI) Z-365. Relationship of the exposure scores derived from CERF-1 with levels of symptom was greater (r=0.49) than OSHA(r=0.28) and ANSI Z-365 (r=0.22). Considering the relationship, jobs scoring higher than 16 could be classified as the Risk Job, and lower than 16 as then Low Risk Job. Sensitivity and specificity of the Risk Job were 92.5% and 31.5 %, respectively. Odds ratio (OR) after age adjus-tment was 5.69 (95% confidence interval 3.15-10.29) for the Risk Job, and these ORs were significantly different from those of the Low Risk Job. The exposure scores were quite valid, in that the scores at the main survey were significantly correlated with those at the follow-up survey, as suggested by test-retest(r=0.88) and inter-rate reliability(r=0.80) Conclusions:The CERF-1, developed in this study, will be an efficient tool for evaluation of risk jobs for CTDs in automobile assembly lines, and can be used easily by health care providers.

폐 내 병변으로 인한 소아 급성 호흡부전의 원인 질환과 예후

이혜영,박지숙,최희라,서지현,김점수,임재영,최명범,박찬후,우향옥,윤희상 대한소아과학회 2004 小兒科 Vol.47 No.5