지형공간 특성자료를 이용한 하천유역의 강우-유출해석

안승섭,이증석,도준현 한국환경과학회 2003 한국환경과학회지 Vol.12 No.9

The subject basin of the research was the basin of Yeongcheon Dam located in the upper reaches of the Kumho River. The parameters of the model were derived from the results of abstracting topological properties out of rainfall-runoff observation data about heavy rains and Digital Elevation Modeling(DEM) materials. This research aimed at suggesting the applicability of the CELLMOD Model. a distribution-type model, in interpreting runoff based on the topological properties of a river basin, by carrying out runoff interpretation for heavy rains using the model. To examine the applicability of the model, the calculated peaking characteristics in the hydrograph was analyzed in comparison with observed values and interpretation results by the Clark Model. According to the result of analysis using the CELLMOD Model proposed in the present research for interpreting the rainfall-runoff process, the model reduced the physical uncertainty in the rainfall-runoff process, and consequently, generated improved results in forecasting river runoff. Therefore it was concluded that the algorithm is appropriate for interpreting rainfall-runoff in river basins. However, to enhance accuracy in interpreting rainfall-runoff. it is necessary to supplement heavy rain patterns in subject basins and to subdivide a basin into minor basins for analysis. In addition, it is necessary to apply the model to basins that have sufficient observation data, and to identify the correlation between model parameters and the basin characteristics(channel characteristics).

양측 쇄골하동맥 및 양측 신동맥 협착을 동반한 Takayasu 동맥염 1예

임선호,임수빈,오석규,이재홍,정진원,박양규,박옥규,소병준,노병석 대한순환기학회 1997 Korean Circulation Journal Vol.27 No.8

종합병원 전자건강카드 도입에 영향을 미치는 요인

안이수,윤석준,안형식,홍석원 한국의료QA학회 2005 한국의료질향상학회지 Vol.12 No.2

Objective : This research is focused on understanding the current status of the Health Smart Card already in use in other advanced countries. This research will analyze the current status of the medical institutions Health Smart Card system adoption process and its effects, and provide a basis for future policy decisions for the effective adoption and diffusion of a Health Smart Card system, in the medical field, through the completed research and analysis. Method : This research surveys the domestic, and foreign, status of Health Smart Card usage. The research also presents up-to-date methodology for the evaluation of the effects of medical and health care technology. The research also conducts a survey of the domestic medical institutions that have implemented a Health Smart Card system, and then analyzes the results of the survey. Additionally, the research carried out a survey and analysis of medical institutions with no Health Smart Card system implemented, and considered the factors affecting the diffusion of Health Smart Card systems in considering an effective policy for the introduction and diffusion of such a system. Research Results : Through the study of the methodology of medical and health care information technology in advanced countries, the methodology for assessing Health Smart Card technology has been established, and focuses on 6 aspects. The study on the status of foreign implementation has shown a model for the Health Smart Card system. A survey was conducted on the current status of medical institutions with an implemented Health Smart Card system, and the survey results have been analyzed. Also, factors influencing the adoption of Health Smart Card systems have been analyzed through the survey on those medical institutions that have not implemented a Health Smart Card system. Conclusion : The government must provide institutional measures for sharing medical records by constructing an IT infrastructure at the national level to enable the adoption and diffusion of a Health Smart Card system. Such a network will make connections between medical institutions possible, thus making the diffusion of the Health Smart Card system nationwide. For the successful adoption and diffusion of a Health Smart Card system, a model system development, under a medical record sharing system, should be conducted. Additionally, a regional unit based model should be developed for the model project, as is done in advanced countries, along with the application of such results.

마이크로스트립 지연선 여파기에 관한 연구

윤준식,박규호,윤철상,박준석,안달 호서대학교 반도체제조장비국산화연구센터 2000 학술대회 자료집 Vol.2000 No.1

일반적으로 LPA에서는 위상을 조정하기 위해 매우 긴 지연선을 필요로 한다. 지연성능은 고전력이나 저전력 모두에서 임의의 길이의 동축선로를 여러번의 과정을 거쳐 적용해봄으로써 구현된다. 그러나 동축선로형 지연선은 부피나 높은 삽입손실등의 제약이 많이 따른다. 본 논문에서는 마이크로스트립 형태의 지연선 대역통과 여파기를 설계하였고, 실험결과는 지연선여파기가 동축선로를 대신하여 LPA 시스템에 적용이 가능함을 보였다.

폐슬러지 감량화 및 재활용을 위한 오존 처리시 하수슬러지내의 미생물 군집구조의 변화

홍준석,임병란,안규홍,맹승규 대한상하수도학회 2004 상하수도학회지 Vol.18 No.1

The change of the microbial community structure in excess sludge of different sewage treatment plants by ozone treatment was investigated by quinone profiles. The resulting ozone dosage ranged from 0.1 to 0.4 gO₃/gTS. In terms of overall sludge reduction, more than 50% reduction of the total sludge mass could be achieved by ozone treatment at 0.4 gO₃/gTS. Quinone concentration and type in sludge of different treatment plants were remarkably decreases with increasing ozone dose. Ubiquinones(UQs)-8, -10 and MK-8 were still remained in the ozonized sludge at 0.4 gO₃/gTS. The results of this study showed that the remaining microorganisms belong to UQs-8, -10 and MK-8 were difficult to destruct cell membrane or wall by ozonation. Fecal Streptococci and Salmonella were not detected at ozone dose of 0.2 gO₃/gTS, but Fecal Colifom was not detected at ozone dose of 0.4 gO₃/gTS.

자연임신에서 분만 및 주산기 예후에 대한 임상적 고찰

이윤희,안준모,김태성,박은희,정집광,이석민,이해혁 순천향의학연구소 2002 Journal of Soonchunhyang Medical Science Vol.8 No.1

Object: To compare pregnancy outcome between term pregnancy and postterm pregnancy. Method: A clinical observation has been made on 60 cases of postterm pregnancies out of 64 cases delivered at the Dept. of Obstetrics & Gynecology, Soonchunhyang University from January 1, 1997 to May 31, 2002. 100 cases of full term deliveries of 37 to 42 gestational weeks conducted in same period were used as the control group for this study. We analyzed their cesarean section rate, fetal weight, placental weight, meconium stain, perinatal morbidity. The statistical significance was defined as P<0.05. Result: The following results were obtained 1. The incidence of postterm pregnancy was 1.34%. 2. The cesarean delivery rate in postterm group(51.7%) was significantly higher than control group(26%). 3. The incidence of large fetus (weight over 4,000gm) in the postterm group(21.7%) was higher than control group(2%). 4. The weight of placenta was 757g and 706g in the postterm group and control group respectively. 5. 1, 5 minute Apgar score lower in the postterm group than control group. Conclusion : To decrease perinatal morbidity and cesarean rate at 42 or more weeks gestation, appropriate labor induction and twice weekly biophysical profile and USF(AI, Doppler) may be indicated.

광대역 특성을 갖는 인쇄형 Quasi-Yagi 다이폴 배열 안테나

리화,전병태,이석곤,안병철 충북대학교 산업과학기술연구소 2002 산업과학기술연구 논문집 Vol.16 No.2

In this paper, we present a design of an array of printed Yagi dipoles. The Yagi dipole antenna consists of a driver element fed by a co-planar stripline, a director and a reflector. The co-planar stripline is in turn fed by an input microstrip line via a transition/balun structure. The finite ground plane used for the microstrip feed line also serves as a reflector element in the Yagi antenna. First the performance of the Yagi antenna is optimized for a wide bandwidth and a high gain. Then a four-element array of the Yagi dipole is realized using a corporate feed network. The designed array shows a reflection coefficient less than -10dB, and a gain of 10.5dB over 11.5-13.5GHz.

蓄血證과 蓄水證의 病理에 關한 文獻的 考察

崔昇勳,安圭錫,文濬典,朴鐘鉉 대한동의병리학회 1994 동의생리병리학회지 Vol.9 No.1

연구배경 : 축혈증과 축수증은 태양표증이 풀리지 않아 邪熱이 안으로 들어가 형성된 양대병증으로 이들의 부위 및 병리에 대한 설명이 명확치 못한 점이 많다. 이에 축혈증과 축수증의 본래 의미를 검토하고 그것의 병리에 대해서 부위, 증상, 개체별 차이 및 측수ㆍ축혈증의 실질에 대해서 연구하고자 함. 연구방법 : 축혈증과 축수증에 관련된 조문 및 유사증에 관한 조문들을 가려서 역대 주가들의 주를 참고로 연구하였다. 축수ㆍ축혈의 실질에 관해서는 처방을 중심으로 사용된 약재들의 현대적 약리작용을 통해 연구하였다. 결과 : 축혈증은 하초소복부의 혈액순환계통의 질환과 관련된 것으로 나타났으며, 축수증은 방광자체의 문제이기 보다는 기화분리로 인한 수액대사 장애와 관련된 병증으로 볼 수 있다. Through the philological study on syndrome of stagnated blood & syndrome of stagnated water, the results are obtained as following; 1. It is resonable to understand that the location of Syndrome of Stagnated Blood(蓄血證) is the lower abdomen and Syndrome of Stagnated Waste (蓄水證) is not exactly the disorder of Gall Bladder itself, but the disturbance of waterbolism derived from the disturbance of Qi (氣) transformation. 2. Syndrome of Stagnated Blood is that, being uncured Taiyang Channel Syndrom (太陽病), pathogen enters inside and pathogenic heat combines with blood at the lower abdomen; its main signs are spasmatic distention or muscular rigidity of the lower abdomen, mental derangement and normal urination. 3. Syndrome of Stagnated Water is that, being uncured Taiyang Channel Syndrom, pathogenic heat enters inside and combines with water and leads to disturbance of waterbolism; its main signs are thirsty, dysphoria, and difficulty in urination. 4. In the view of Western Medicine, Syndrome of Stagnated Blood is related with the disease of the blood circulation-especially in microcirculation- of the lower abdomen; Syndrome of Stagnated Water is similar to the disease which is related with the abnomal state of osmotic density derived from the unblance of electrolytes. 5. Lee Je-Ma regared the Syndrome of Stagnated Blood as SinSooYeolPyoYeolByung(腎受熱表熱病) of ShaoYin-Ren (少陰人), so explained it as the disease derived from the lower abdominal accumulation of Yang-Qi (陽氣) which coudn't have ascended; and regarded the Syndrome of Stagnated Water as PiSooHanPyoHanByung (脾受寒表寒病) of ShaoYang-Ren (少陽人), so explained it as the disease derived from the accumulation of internal heat because of discending disturbance of Yin-Qi (陰氣).

사체간이식 환자와 생체간이식 환자들의 삶의 질 비교 연구

김금희,윤석준,안형식,이준영,박형근,서경석 한국의료QA학회 2004 한국의료질향상학회지 Vol.11 No.1

Objective : The aim of this study were to measure quality of life(QOL) in liver transplant recipicnts, to ocmpare QOL between living donor liver transplant recipicnts and cadavcric live transplant recipients and to investgatre whether SF-36 may be used as a disease-specific instrument in liver transplant recipients. Methods : We conducted a single-center cross-sectional study of 133 LT recipients ages 13 to 65 years, all of whom had had Liver Transplantion(LT) at least 1 months previously. QOL was assessed using a self-completion questionnaire consisting of the Bang Whal Ran(1991) instruments and the 36-Item Short-Firm Health Survey(SF-36) health status profile measure. We investigated whether the SF-36 instrument may be used as a disease-specific instrument in LT recipients. Individual scale scores range from 0 to 100 , with higher score reflecting better health. Data on demograpics, clinical status at pre transplantation 1 day, post transplantation clinical statns, and graft gunction were collected to identify predictors of post transplantation QOL. Results : Standard measures for test-rtest reliability, internal consistency, and discriminant and concurrent validity were examined. The reliability of the SF-36, as measured by test-retest correlation(Pearson coeffocoents: 0.729, p=0.002) and by internal consistency (Cronbach's alpha: 0.9431) exceeded conbentional acceptability criteria. The correlation between domain scores of SF-36 and the Bang Whal Ran(1991) was clear and logical in that the clinical characteristics of SF-36 strongly correlated with the clinical component summary score of the Bang Whal Ran(1991)(r = 0.8155, P<01). SF-36 scale scores were compared between Cadaveric Liver Transplant recipients and Living Donor Liver Transplant recipients. Donor types of post LT did not influence HRQOL(P >0.05). 87% of the liver transplant recipients were safisfied to get LT. Satisfaction of post LT showed significantly greater HRQOL(p<0.001). Conclusion : SF-36 is found reliable and valid. This study indicates thet Donor Type did not influence HRQOL after LT. The information gained from this study will help us to better define expectations and the colinical course after liver transplantation to patients and their families.

WLL 기지국용 저잡음 증폭기 설계

김철수,박준석,안달 순천향대학교 부설 산업기술연구소 2000 순천향 산업기술연구소논문집 Vol.6 No.2

In this paper, the low noise amplifier has been designed and fabricated for WLL Rx system of 2.3GHz~2.33GHz. We employed semicondutor AHl for high linearity and low power consumption of 8V and 500mA bias condition and HEMT(ATF36077) at 1st stage to improve noise figure perfomance. The balanced struture was used for the input and output matching circuit. By employing the Air-core inductor, it makes easy to do the minor tuning process. Measured results show 41.5dB gain and 0.9dB noise figure.