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김상민,김성재,김용완,박태양,김성민,박기욱,장민원,Kim, Sang-Min,Kim, Sung-Jae,Kim, Yong-Wan,Park, Tae-Yang,Kim, Sung-Min,Park, Ki-Wook,Jang, Min-Won 한국농공학회 2011 한국농공학회논문집 Vol.53 No.6
The purpose of this study was to establish the methodology for providing the environmental flows from irrigation reservoir. Reservoir water budget for study area was analyzed to simulate the water supply scenarios for environmental flows. Bonghyun and Hi reservoirs area, located in Gyeongnam, Gosung-gun, Hi-myeon, were selected for study watersheds and streams for this study. Reservoir operation was simulated to determine the envionmental flows supply amount from March to October with the constraint that environmental flow supply was restrained when the storage of reservoir were below the half or one-third of effective storage. The simulated results indicated that the supply of environmental flows with the amount of 200 ton/day and 600 ton/day resulted in up to 15 mm and 29 mm of runoff depth increase in the downstream, respectively. The effect of environmental flows supply from existing irrigation reservoir was not significant because the irrigation reservoir was not designed to supply the environmental flows. It is necessary to remodel the irrigation reservoir and develop the reservoir operation technique, to meet the need for the environmental flows.
김상민,김미라,김용완,백무진,박준욱,Kim, Sang Min,Kim, Mi Ra,Kim, Yong-Wan,Baek, Moo Jin,Park, Jun-Ook 대한두경부종양학회 2015 대한두경부 종양학회지 Vol.31 No.1
기관을 침범한 갑상선 악성종양을 제거한 후에 성문하부에 비교적 큰 기관 결손이 발생할 수 있다. 단단문합술은 넓은 부위의 결손부를 재건하는 방법으로 널리 받아들여지고 있지만, 문합부 파열, 반회후두신경마비, 재협착 등의 합병증이 발생할 수 있다. 본 증례는 기도를 침범한 갑상선 유두암종을 제거한 후 윤상연골과 기관연골의 비교적 큰 결손부를 흉쇄유돌근 근골막피판을 사용하여 안전하게 재건한 사례이다. 55세 남자 환자가 기도를 침범한 갑상선 유두상암으로 내원하였으며 기도침범은 윤상연골(둘레의 약 30%)과 4개의 기관연골(둘레의 약 50%)을 해당하는 넓은 부위였다. 수술 전 기관절개술을 시행하여 주위 기관연골의 상태가 좋지 않아 단단문합술 시행 후 문합부 파열 가능성이 있다고 판단하여 흉쇄유돌근 근골막피판을 이용하여 재건하기로 계획하였다. 갑상선 절제술, 경부림프절 절제술, 흉쇄유돌근 근골막피판을 이용한 재건술을 시행하였으며 수술 후 12일째 별다른 문제없이 퇴원하였다. 환자는 수술 후 현재 22개월 간 기도 협착 등의 별다른 합병증 없이 지내고 있다. 흉쇄유돌근 근골막피판은 성문하부나 기관지 전외측벽의 비교적 큰 결손부를 재건하는 데 유용하게 사용될 수 있다.
국립공원내 홍수피해 저감을 위한 미계측 산림지역의 설계홍수량 추정
김상민,임상준,이상호,김형호,마호섭,정원옥,Kim, Sang-Min,Im, Sang-Jun,Lee, Sang-Ho,Kim, Hyung-Ho,Ma, Ho-Seop,Jeong, Won-Ok 한국농공학회 2009 한국농공학회논문집 Vol.51 No.5
The purpose of this study is to estimate the design flood runoff for ungaged forest watershed to reduce the flood damage in national park. Daewonsa watershed in Jirisan National Park was selected as study watershed, of which characteristic factors were obtained from GIS data. Flood runoff was simulated using SCS unit hydrograph module in HEC-HMS model. SCS Curve Number (CN) was calculated from forest type area weighted average method. Huff's time distribution of second-quartile storm of the Sancheong weather station, which is nearest from study watershed, was used for design flood runoff estimation. Critical storm duration for the study watershed was 3 hrs. Based on the critical duration, the peak runoff for each sub-watershed were simulated. It is recommended to monitor the long-term flow data for major stream stations in National Park for a better reliable peak runoff simulation results.
Ester Linkage 를 함유한 Bismaleimide 의 합성과 감광특성
김상민,김태호 ( Sang Min Kim,Tae Ho Kim ) 한국공업화학회 1997 공업화학 Vol.8 No.2
N-(p-carboxyphenyl)maleimide의 염소화물을 N-(p-hydroxyphenyl)maleimide와 반응시켜 중심에 에스테르 결합을 가지고 있는 bismaleimide(BISMI)를 합성하였다. 합성된 BISMI의 감광특성을 확인한 결과 사용된 benzil dimethyl ketal 광개시제의 농도와 자외선 조사량을 증가시킴에 따라 BISMI의 점도가 증가하는 경향을 보였다. 또한 BISMI의 잔막수율의 변화와 화상형성능력 및 최소선폭을 검토하였다. Bismaleimides(BISMI) containing ester linkages were prepared by the chlorinated N-(p-carboxyphenyl)maleimide and N-(p-hydroxyphenyl)maleimide. The photosensitive properties of BISMI were investigated via changes of the irradiation time. Benzil dimethyl ketal was used as a photoinitiator. The effect of photoinitiator onto BISMI increase in average as increasing photoinitiator concentration and irradiation time. The yield of residual film and image pattern and resolution also measured and discussed.
오염총량관리를 위한 남강댐유역 BOD 자료의 공간특성 분석
김상민,김성민,박태양,Kim, Sang-Min,Kim, Sung-Min,Park, Tae-Yang 한국농공학회 2010 한국농공학회논문집 Vol.52 No.3
The purpose of this study is to analyze the spatial characteristics of Namgang-Dam watershed for a Total Maximum Daily Loads (TMDL). Three TMDL target sites, Gyeonghogang1, 2, Namgang-Dam2, are located within Namgang-Dam watershed. Under the current criterion for TMDLs, 3-year arithmetic mean BOD concentration of the target sites should not exceed the target concentration for 2 consecutive years. Two and three times of violation were observed for Gyenghogang2 and Namgang-Dam2 sites while no violation was found for Gyeonghogang1 site. However, no violation was found since 1999 for all three sites. Correlation between each 12 stations within the watershed were analyzed and cluster analysis was conducted to figure out the spatial characteristics of the watershed. Correlation coefficient between Gyonghogang1 and 2 was high (0.758) while the coefficients between lake station (Namgang-Dam2) and stream stations (Gyonghogang1 and 2) were very low. Dendrogram indicated that all of three Namgang-Dam stations were very close and Gyenghogang1, 2 stations were also close.
슬관절 통증 환자의 한의학적 치료 호전도와 BMI 와의 상관성
김상민,이순호,최지훈,김현중,구자성,장재원,이동현,유형진,Kim, Sang-Min,Lee, Sun-Ho,Choi, Ji-Hoon,Kim, Hyun-Joong,Koo, Ja-Sung,Jang, Jae Won,Lee, Dong-hyun,Yoo, Hyung Jin 척추신경추나의학회 2016 척추신경추나의학회지 Vol.11 No.1
Objectives : This study was designed to assess the general distribution, clinical effectiveness of Korean medical treatment on knee pain and the correlation between Korean medical therapy on knee pain and BMI. Methods : This is an observational study. 65 patients admitted to Daejeon Jaseng Hospital of Korean Medicine with musculoskeletal disorders were observed from July, 2014 to July, 2015. They were analyzed according to sex, age, pain lesion, body mass index(BMI) and treatment efficacy. All patients received a combination of treatments during hospitalization, including acupuncture, pharmacopuncture, herbal medicines and physical therapy. A zero to ten numerating rating scale (NRS) assessing pain, Western Ontario and McMaster Universities Arthritis Index(WOMAC) index and Range of Motion(ROM) was used before and after treatments. Statistical correlations among assessment measurements were evaluated by examining the paired t-test and the Pearson's correlation coefficients. Results : The average BMI of all patients was $24.03{\pm}2.95kg/m^2$. According to clinical definition of obesity by Korean Society for the Study of Obesity, 33.8% of all patients was within normal weight, 1.5% was underweight, 33.8% was overweight, 24.6% was obesity and 6.2% was morbid obesity. For knee pain patients, NRS (Numeric Rating Scale) decreased from $6.28{\pm}1.63$ to $3.94{\pm}2.03$(p<0.001). WOMAC index decreased from $48.14{\pm}17.63$ to $40.37{\pm}18.28$(p<0.001). But, there were no significant correlations in statistics among BMI, knee pain index and knee pain index improvement. Conclusions : Korean medical combination treatment might be effective in reducing pain and improving functional disorders for patients with knee pain. This study further confirmed the efficacy of Korean medical treatment on knee pain. But, more studies on correlation between knee pain and obesity and development of assessment measurement are needed.