소규모 농업용 저수지의 저류량-용수공급능력 결정에 관한 연구

안승섭,정순돌,이증석,윤경덕,장인수 한국환경과학회 2002 한국환경과학회지 Vol.11 No.12

This study aims at the effective estimation of water supply capacity of small scale reservoir and the proposal of the data which is necessary to establish the water resources management plan of down stream area of the reservoir in the future by comparison and examination about reservoir operation technique for the security of agricultural water in small scale reservoir. The result of flow calculation by Tank model is used for the input data as the inflow data which is needed for the analysis of water supply capacity. Stochastic method, simulation method, and optimization method are used to examine the water supply capacity, and water security amount is compared with each method. From the analyses of water supply capacities by each method, slightly different results are shown in spite of the effort to compare them equally using input data such as inflow data under equal conditions, and the comparison of water supply capacities by each method are follows; linear planning method, and transition probability matrix method in the order of amount from the largest. It is thought that the simulation method in which comparatively reasonable application of the inflow data is possible and is simulated in successive time series dam operation of the three methods used in this study thus, simulation model is proper to estimate the water supply capacity of agricultural small scale reservoir. And it is judged that the heightening of efficiency of water resources utilization according to the development of downstream area of dam may be possible using the upward readjusted water supply amount of 55.18×10^6ton at 95% and 90% supply reliability respectively which are above the planning water supply amount of 50.0×10^6ton when the simulation method is introduced as the standard.

유지의 가열 및 저장에 따른 Trans 지방산 생성에 관한 연구 : 제2보 ; Trans 지방산 함량 및 조성 변화를 중심으로 The contents and the kinds of Trans fatty acids

안명수,구본순,김덕숙 한국조리과학회 1990 한국식품조리과학회지 Vol.6 No.3

In this study, the cis to trans isomerization of unsaturated fatty acids were investigated about Soybean oil (SBO), Corn germ oil (CGO), Cottonseed oil (CSO), Margarine (MG), Shortening (ST) incubated at 40±2℃ for 35 days and heated at 185±2℃ for 24 hours. The contents and kinds of trans fatty acids in each sample were determined by GLC after seperating by HPLC. The results were obtained as follows; 1. When samples were incubated at 40±2℃ for 35 days, the contents of total trans fatty acids were increased from 0.5∼12.3% to 0.8∼20.5%. The kinds of trans fatty acids found were t-C_(18:1), t,c-C_(18:2), t,t-C_(18:2), t,c,c-C_(18:3) in SBo, t-C_(18:1), t,c-C_(I8:2) in CGO, t-C_(16:1), t-C_(18:1), t,c-C_(I8:2), t,t-C_(18:2) In CSO. Processed oil such as MG and ST showed more complicated composition of trans fatty acids than SBO, CGO and CSO. T-C_(18:1), t,c-C_(18:2), t,t-C_(18:2), t,c,t-C_(18:3) t-C_(20:1) were detected in ST. 2. In the case of heating at 185±2℃ for 24 hours, the contents of total trans fatty acid were 1.6∼37. 2% in all samples. Heating made more remarkable isomerization than incubation (40±2℃). Specially, c,c,t-C_(18:3) in SBO, t,t,t-C_(18:3) in MG, t,c,t-C_(18:3), t,t,t-C_(18:3) in ST were detected. 3. The total contents of trans fatty acids of processed oil were higher than vegetable oils. During incubation, trans fatty acids increased in the order of MG>ST>CGO>SBO>CSO, and during heat treatment, MG>ST>SBO>CGO>CSO.

한국의 Amatoxins 중독증

안영민,이동수,이강문,강상범,양진모,박영민,이영석,정규원,선희식,박두호,노현주,강영모,이종명,허정욱,최성곤,김정호,이상인,최승옥,최홍엽,권오선,구창덕,석순자,김양섭 대한간학회 2000 Clinical and Molecular Hepatology(대한간학회지) Vol.6 No.3

한국의 amatoxins 중독증은 강원 영서 지역이 호발지역으로 알려져 왔으며 최초로 보고된 원인버섯은 알광대버섯이었으나 현재까지 재 확인된 바가 없다. 원인버섯이 확인된 예로는 강원 영서지역이나 대전지역의 독우산광대버섯과 함께 1998년 경북 일원에서 발생한 집단 중독사고의 개나리광대버섯과 대전에서 발생한 1예에서 흰알광대버섯을 들 수 있다. 최근까지 amatoxins 중독증에 관해 보고된 국내의 문헌을 살펴보면 한국에서 발생하는 amatoxins중독증은 사망률에서 외국의 20-40% 와 큰 차이가 있는 것 처럼 보이나 사실상 전체적인 발생빈도나 사망률 등을 산출한 예가 없었을 뿐아니라, 높은 사망률의 원인이 무엇인지를 비교하는 것도 불가능하였다. 저자들은 국내에서 발생하는 amatoxins 중독증의 예방과 보다 효율적인 진단 및 치료를 위해 발생빈도나 사망률 및 원인버섯 등의 기초적인 조사와 함께 문헌을 통해 amatoxins 중독증에 대한 지견을 고찰하고자 하였다. 대상과 방법: 1999년 1년간 원인버섯 식별을 위해 의뢰되었던 증례들과 연례적 호발지역의 의료기관에서 병력 및 임상소견으로 amatoxins 중독증으로 진단 또는 추정된 증례들을 조사하였다. 원인버섯의 식별은 발생지역을 방문하여 원인버섯의 확보가 가능했던 소수의 증례에서는 외관과 현미경적 소견으로 원인버섯을 식별하였으며 원인버섯의 확보가 불가능한 증례에서는 특징적인 외관으로 추정되었다. 결과: 54명의 대상환자들 중 43명에서amatoxins 중독증으로 진단되었으며 그중 35명은 중등도 이상의 중독증으로 간주하였다. 중등도 이상의 중독증에서는 7명이 사망하여 20%의 사망률을 나타내었으며 원인버섯은 독우산광대버섯과 개나리광대버섯이 확인되었다. 흰알광대버섯은 확인되지 않았으나 사실상 독우산광대버섯과의 감별은 이루어지지 않았다. 4예에서는 원인버섯이 확인되지 않아 더 연구 되어야 한다. 사망례에서는 비사망군에 비해 혈소판이 유의하게 감소한 소견을 보였다. 전예에서 간이식등의 치료는 시행되지 않았으며 대부분 수액요법을 근간으로한 보존요법을 실시하였다. 결론: 한국의 amatoxins 중독증은 주로 강원 영서지역과 경북 일원에서 호발하고, 원인버섯은 외국과는 달리 독우산광대버섯과 개나리광대버섯이 주된 원인버섯이며, 1997년 까지의 증례보고를 대상으로한 70%의 사망률과는 달리 중등도 이상의 중독증례를 대상으로 하여도 사망률은 20%로 외국에 비해 높지 않다. 그러나 외국과 달리 간이식과 같은 보다 적극적인 치료를 시도한 예가 없는데, 대부분 갑자기 나빠지기 때문에 준비를 못하는 것이 원인이다. 따라서, 사망률을 더 낮추기 위해서는 혈액이나 소변과 같은 체액에서 단시간 내에 amatoxins을 측정할 수 있는 임상 검사법이 개발되어 조기 진단이 가능해져야 하며, 중독 초기에 나쁜 예후가 예측되는 심각한 증례를 선별하여 전문적인 치료를 받을 수 있는 기회를 제공해야 한다. 아울러 amatoxins 중독증에 대한 보다 정확한 통계를 산출하여야 할 것이다. 저자들은 본 연구에 1999년도에 발생한 대부분의 amatoxins 중독증의 증례가 포함되었으나 포함되지 않은 증례들이 다수 있다고 생각한다. 이러한 기초 조사를 철저히 하기 위해서는 전국 각지에서 발생하는 버섯중독 사고를 의뢰 또는 신고 할 수 있는 일원화 된 창구가 필요하리라고 사료된다. $quot;Background/Aims: From the review of Korean literature most fatal mushroom poisonings have been due to amatoxins with high mortality. So far there have never been investigations on the amatoxins poisonings such as annual incidence, mortality, common causal species, and endemic areas. This study was carried out to develop some basic statistics as part of studies for an effective management of amatoxins intoxications. Method: For the year 1999 authors collected cases of mushroom poisonings which had been mainly gathered from hospitals nation-wide. All of the cases with suggestive amatoxins poisonings were screened by symptomatology and laboratory findings. The causal species of mushrooms were identified grossly and microscopically. Results: A total of 54 victims with mushroom poisonings were evaluated. The causal mushroom toxins were diagnosed or strongly suggested as amatoxins in 43 of 54 victims. Eleven of 54 victims did not conform to the category of amatoxins intoxication due to absent or minimal elevation of aminotransferase. Mean age of the victims was 44.3 23.3 (range: 7-78) with male predominance (1.2 : 1). The causal species were confirmed, or strongly suggested, as Amanita virosa in 25 victims, Amanita subjunquillea in 14, and unknown species in 4. Thirty-five out of a total of 43 were regarded as moderate to severe intoxication (AST or ALT $gt; 1,000 IU/L) with 20% mortality. Most fatal victims showed marked thrombocytopenia (40,000 19,000/mm3) compared to non-fatal victims (109,066 42,245/mm3). A total of 88.4% of victims was developed in the Kangwon and Kyungpuk provinces. Both are west of the Taebaek Mountains (38/43). Conclusions: Although the common causal species for amatoxins poisonings in Korea are different from European countries and North America, the mortality is similar to that of those areas. In order to further reduce the mortality, bedside diagnostic methods using biological fluids and more effective herapy for liver failure should be established$quot;.

Activation of Ca^(2+)-activated K^(+) channels by beta agonist in rabbit coronary smooth muscle cells

Ahn, Duck-Sun,Jeong, Young-Ki,Lee, Young-Ho,Kang, Bok-Soon Yonsei University, College of Medicine 1995 Yonsei medical journal Vol.36 No.3

유지의 가열 및 저장에 따른 Trans 지방산 생성에 관한 연구 (1) : 일부 이화학적 특성 및 Trans 지방산 함량변화를 중심으로 The Change of Physicochemical Characteristics and Total Trans Fatty Acids Content

안명수,구본순,김덕숙 한국조리과학회 1990 한국식품조리과학회지 Vol.6 No.2

The cause and the degree of the cis to trans isomerization were investigated about soybean oil (SBO), corngerm oil (CGO), cottonseed oil (CSO), margarine (MG) and shortening (ST). All samples treated with various conditions were analyzed to determine physicochemical characteristics (AV, POV, IV, RI), fatty acid composition, total trans fatty acid content and change of trans fatty acid composition by GLC, IR and HPLC. The results were obtained as follows; 1. Physicochemical constants were changed with a gentle slope according to incubating period at 40±2℃ and physicochemical constants of margarine and shortening were changed, significiantly. 2. The saturation degree in the unsaturated fatty acid composition determined by GLC gradually were increased during incubation and heating periodically. For palmitic and stearic acid content at the samples stored in the incubator, the saturation degrees were gradually increased. But for the case of heat treatment, they were increased more rapidly than other fatty acids. 3. Total trans fatty acid contents in each samples were determined by GLC, IR and HPLC, the amount of trans fatty acids were measured with discrepancy. It was caused by deviation of analytical instruments; methods and the kinds of samples. Trans fatty acids were measured more definitly in IR more than GLC and HPLC. On the other hand, total trans fatty acid contents in average levels for SBO, CGO, CSO, MG and ST stored for 35 days and heated for 24 hours were 1.3%, 1.1%, 0.9%, 22.6% and 13.8%, and 3.6%, 3.0%, 2.8% 41.2% and 20.8%, respectively.

케이블 감쇠를 고려한 와류진동을 받는 케이블 구조물의 동적 응답

안상섭(Ahn Sangsup),권순덕(Kwon Soon-Duck) 대한토목학회 2001 대한토목학회논문집 A Vol.21 No.4A

신장이식에서 생체 공여자와 뇌사 공여자의 비교분석

한덕종(Duck-Jong Han),손명집(Myeong-Jeeb Son),이희만(Hee-Man Lee),김송철(Song-Cheol Kim),박수길(Su-Kil Park),김순배(Soon-Bae Kim),박정식(Jung-Sik Park),홍창기(Changgi Hong),안태영(Tai-Young Ahn),김청수(Chung-Su Kim) 대한외과학회 1996 Annals of Surgical Treatment and Research Vol.50 No.2

316L 스테인리스강 용접부의 피로균열진전 거동 및 초음파 시험에 의한 열화특성 평가

박소순(So-Soon Park),남기우(Ki-Woo Nam),안석환(Seok-Hwan Ahn),박인덕(In-Duck Park) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.8

316L stainless steel had been used as the structural material for energy environmental facilities, because austenite stainless steels like 316L have superior mechanical properties of which toughness, ductility, corrosion resistant and etc. However, those welded structures are receiving severe damage due to increasing of the aged degradation. Most studies until now have been carried out against fatigue behaviors of weldments, and were not well studied on nondestructive evaluation methods. In this study, the fatigue crack propagation behavior of 316L stainless steel weldment usually used for vessels of the nuclear power plant was investigated. Also, the degradation characteristics of 316L stainless steel weldments were evaluated by the ultrasonic parameter such as ultrasonic velocity, attenuation factor and time-frequency analysis. The results of this study can be used as a basic data for the prediction of the fatigue crack life of weldments structures without disjointing or stopping service of structures in service.

로프에 의한 추가 감쇠를 고려한 가이드 타워의 와류진동 응답

권순덕(Kwon Soon-Duck),안상섭(Ahn Sang Sup) 대한토목학회 2000 대한토목학회 학술발표회 논문집 Vol.2000 No.1

덱스트란과 락타이드글리콜라이드 공중합체를 이용한 이중층 나노미립구 제조

홍금덕(Keum Duck Hong),안용산(Yong San Ahn),고종태(Jong Tae Go),김문석(Moon Suk Kim),육순홍(Soon Hong Yuk),신형식(Hyung Sik Shin),이종문(John M. Rhee),강길선(Gil Son Khang),이해방(Hai Bang Lee) 한국고분자학회 2005 폴리머 Vol.29 No.3