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오종민,신동환,최이송,Oh, Jong-Min,Shin, Dong-Hwan,Choi, I-Song 한국방재학회 2004 한국방재학회논문집 Vol.4 No.1
본 연구는 전형적인 도심소재 중 소하천인 오산천 상류를 중심으로 수질변화 현상을 정확히 파악하기 위하여 24시간에 걸친 연속측정을 통해 수질의 변화를 조사하였고, 이러한 결과를 통하여 효율적인 하천관리 방향을 제시하였다. 오산천 수질의 연속조사의 결과로부터, 본류의 수질개선을 위해서는 다음과 같은 일들이 선행되어야 할 것으로 판단된다. 첫째, 본류 수질개선을 위해서는 유입지류의 효율적인 관리방안이 필요하다. 둘째, 하천 본류의 저질로부터 재용출 되는 오염을 방지하기 위한 대처방안이 필요하다. 본 연구에서는 수질저하를 방지하기 위해 단순한 조사만으로도 중 소하천의 효과적인 관리 방안을 제시했다. 따라서 하천에서의 연속적인 수질 모니터링은 하천수질 개선을 위해 중요하며, 나아가 하천환경에서 일어나는 물질순환 및 물질수지는 건전한 하천조성을 위하여 정확히 평가되어야 한다. In this study, the variation of water quality in Osan stream was investigated through continuous monitoring, and mass balance and metabolism occurred into water body were estimated to set up effective management plan for water quality of small urban stream. From the results of continuos investigation of water quality in Osan stream, the things written as follows must be previously done to improve water quality of main stream. Firstly, it need that effective management plan for tributaries must be set up to improve the water quality in main stream. Secondly, the counter plan for re-eruption of pollutants from sediment in main-stream is required to prevent inner pollution. In this study, we showed that small urban stream can be managed effectively by simple investigation to prevent deterioration of water quality. Therefore continuous monitoring for water quality in stream is important to improve water quality, furthermore matter cycle and mass balance happening in the stream environment must be correctly estimated to make up healthy stream environment.
오종민,원태완 한국유방암학회 2019 Journal of Breast Disease Vol.7 No.2
Purpose: Gynecomastia is the most common cause of male breast enlargement and is a disease which can occur in men of all ages. The purpose of this study was to evaluate the effect of tamoxifen on size reduction of breast tissue in gynecomastia patients, regardless of age and symptoms. We also, aimed to investigate the advantages and disadvantages of tamoxifen compared to surgery and other medications. Methods: Twenty patients diagnosed with gynecomastia at the Breast and Thyroid Surgery Department, of Wonkwang University Hospital from January 2013 to February 2019 were included. All patients received tamoxifen 20 mg once a day or 10 mg twice a day; two months of treatment was planned, and medication was administered. The diameter and depth of the gynecomastia tissue were followed up with breast ultrasound before and after treatment. A survey of age, nationality, location, symptoms, duration of symptoms, previous history, and causes was also conducted. Results: Breast tissue size was measured by ultrasound when the gynecomastia patients first visited and after using tamoxifen. As a result, mean diameter decreased by 41.9%, mean thickness decreased by 41.0%, and estimated mean volume decreased by 74.3%, except for one patient with recurrence. No side effects of tamoxifen were found in this study. Conclusion: Since tamoxifen treatment has few side effects and recurrence is rarely reported at the time of discontinuation, it is a good primary treatment. But secondary treatment should be considered if there is no subsequent reaction. Surgical treatment may also be considered for gynecomastia patients with Tanner’s breast stage higher than 4, or who want an immediate reduction in breast size.
오종민,이수환 ( Jong Min Oh,Soo Hwan Lee ) 한국물환경학회 1997 한국물환경학회지 Vol.13 No.1
This study has been performed to investigate water quality and organic loading on Shingal reservoir and its tributries in order to collect basic data and to apply future hydrological and systemic water supply planning. Following results were obtaind, 1. The lower reaches of Shingal stream was more polluted than upper or middle reaches of a stream. Annual average BOD concentration of Site-4 which passed by Shingal Yub, was about 33.36㎎/1, and annual average COD concentration was 71.34㎎/1. The water quality of site-4 was worse than that of downstream(site-5), and proper measure is necessary to prevent water pollution. 2. For the vertical distribution of temperature in Shingal reservior, the stratification occurred in summer and winter, but not in spring and fall. 3. For the organic loading, domestic animals contributed most with 36% and residents contributed 34.1% of total BOD loading. 4. BOD loading estimation equation of Shingal reservoir was obtained from stepwise multiple regression analysis, and this equation was statistically significant(R²=0.7704, p$lt;0.001).