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남현옥 ( Hyun Ok Nam ),박경윤 ( Kyung Yoon Park ),조성익 ( Seong Ik Cho ) 大韓遠隔探査學會 1989 大韓遠隔探査學會誌 Vol.5 No.1
In recent years satellite data have been increasingly used for the analysis of flood-prone areas. This study was carried out to demonstrate the usefulness of repetitive satellite imagery in monitoring flood levels of the Pyungchang watershed. Runoff characteristics parameters were analyzed by Soil Conservation Service(SCS) Runoff Curve Number(RCN) based on Landsat imagery and Digital Terrain Model data. The RCN average within the watershed was calculated from RCN estimates for all the pixels(picture elements) and adjusted by antecedent precipitation conditions. The direct runoff hydrograph was derived from the unit hydrograph using SCS dimensionless unit hydrograph and effective rainfalls estimated by the SCS method. In comparison of the direct runoff hydrograph with the measured rating curve their peak times differ by one hour and peak discharges differ by 5.9 percents of the discharge from each other. It was shown that repetitive satellite imagery could be very useful in timely estimating watershed runoffs and evaluating ever-changing surface conditions of a river basin.
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복식자궁전적출술과 인공슬관절 치환술 환자에서 정맥내 자가통증조절이 수술 후 진통에 미치는 효과
최영균,남현옥,이정한,이근무,정순호,김영재,신치만 白中央醫療院 2005 仁濟醫學 Vol.26 No.1
Objective: Intravenous patient-controlled analgesia(IV PCA) is gaining wide spread popularity in the management of postoperative pain control. The purpose of this study is to evaluate the severity of pain after TAH and TKRA through comparing visual analogue scale(VAS) of pain of each patients who received identical IV PCA protocol, and to improve our IV PCA protocol. Methods: TAH group includes twenty female patients who were scheduled for TAH. TKRA group includes twenty female patients who were scheduled for TKRA. Each group received fentanyl 50㎍ about 30minutes before the end of surgery, followed by IV PCA with fentanyl 1500 ㎍, ketolorac 300mg, ondansteron 8mg, normal saline 56㎖(total 96ml, basal infusion rate 1㎖/hr, bolus dose 1㎖, lockout time 10 minutes). VAS scores were recorded at 1, 6, 12, 24, 48 hours postoperatively. Total bolus doses and patients' satisfaction were checked after the end of analgesia. Results: VAS scores of TKRA group were significantly higher than those of TAH group at 12, 24, 48 hours postoperatively. VAS scores of both group progressively decreased(P<0.05). Patients' satisfaction score showed no significant difference between two groups. Total bolus dose of TKRA group was significantly higher than that of TAH. Conclusion: The postoperative pain of TKRA was more severe than that of TAH. TKRA group needed more profound postoperative pain control than TAH group. We should consider the increase of early postoperative period analgesic doses to acquire optimal pain control of both group.
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