포아송 클러스터 강우 생성 모형을 이용한 도시 홍수 해석

박현진,양정석,한재문,김동균,Park, Hyunjin,Yang, Jungsuk,Han, Jaemoon,Kim, Dongkyun 한국수자원학회 2015 한국수자원학회논문집 Vol.48 No.9

This study examined the applicability of MBLRP (Modified Bartlett-Lewis Rectangular Pulse) rainfall generation model for an urban flood simulation which is a type of Poisson cluster rainfall generation model. This study constructed XP-SWMM model for Namgajwa area of Hongjecheon basin, which is a two-dimensional pipe network-surface flood simulation program and computed a flood discharge and a flooded area with input data of synthetic rainfall time series of 200 years that were generated by the MBLRP model. This study compared the data of flood with synthetic rainfall and flood with corresponding values which were based on design rainfall. The results showed that the flooded area computed with MBLRP model was somewhat smaller than the corresponding values on the basis of the design. A degree of underestimation was from 8% (5 year) to 34% (200 year) and the degree of underestimation increased as a return period increased. This study is meaningful in that it proposes methodology that enables quantifiability of uncertain variables which are related to a flooding through Monte Carlo analysis of urban flooding simulation and applicability and limitations thereof. 본 연구에서는 포아송 클러스터 강우생성모형의 일종인 Modified Bartlett-Lewis Rectangular Pulse (MBLRP) 강우생성 모형의 도시홍수 모의에 있어 적용성을 살펴보았다. 이를 위하여 서울 홍제천 유역의 남가좌 배수분구에 대하여 2차원 관망-지표면 홍수 모의프로그램인 XP-SWMM 모형을 구축하고, MBLRP 모형을 사용하여 생성된 200년 길이의 가상 강우 시계열을 입력 강우자료로 하여 홍수량, 침수면적을 산정하고 이를 설계 강우에 근거하여 산출된 값들과 비교하였다. 비교 결과, MBLRP 모형을 사용하여 산출된 홍수량 및 침수면적은 설계 강우에 근거한 값들과 비교하였을 때 다소 작은 값을 가졌고, 과소산 정의 정도는 8% (5년빈도)에서 34% (200년빈도)의 값을 가졌으며, 설계 강우의 재현기간에 따라 과소 산정의 정도는 증가하였다. 본 연구의 결과는 도시유역에서의 홍수 모의에 있어 몬테카를로 분석을 통한 침수관련 변수들의 불확실성을 정량적으로 표현할 수 있는 방법론을 제시하고 그 적용성 및 한계점을 제시했다는 점에서 그 의미를 찾을 수 있을 것이다.

수지상 세포를 이용한 종양 면역요법

박현진,Park, Hyeon Jin 대한소아청소년과학회 2003 Clinical and Experimental Pediatrics (CEP) Vol.46 No.10

회원작품 - 강남구웰에이징센터

박현진,Park, Hyunjin 대한건축사협회 2023 建築士 Vol.653 No.-

국내 유통 중인 혼합채소샐러드 및 신선·냉동과일의 미생물 오염실태 조사

박현진,이정은,김솔아,심원보,Park, Hyun-Jin,Lee, Jeong-Eun,Kim, Sol-A,Shim, Won-Bo 한국식품위생안전성학회 2021 한국식품위생안전성학회지 Vol.36 No.4

국내에서 유통되고 있는 혼합채소샐러드류, 신선과일 및 냉동과일에 대해 미생물 오염 도를 식품군별, 지역별, 분기별로 비교 분석하였다. 식품군 별로 일반세균수는 혼합채소샐러드에서 가장 높은 6.48 log CFU/g, 신선과일은 5.07 log CFU/g, 냉동과일은3.78 log CFU/g 수준으로 나타났다. 분기별 일반세균수를 비교 분석한 결과에서는 1분기 오염도는 5.12 log CFU/g, 2분기는 6.26 log CFU/g, 3분기는 5.73 log CFU/g, 4분기는 4.42 log CFU/g으로 확인되어 외부온도가 높은 2,3분기에서 조금 더 높은 일반 세균수가 관찰되었다. 지역별 일반세균수의 오염은 5.26-5.47 log CFU/g으로 수준으로 지역별 차이는 확인되지 않았다. 대장균군의 경우 1.98-3.93 log CFU/g으로 나타났고, E. coli의 경우 혼합채소샐러드 27점 중 3점에서 평균 1.38 log CFU/g으로 검출되었다. 이러한 결과를 종합할 때 혼합채소샐러드와 신선과일은 Solberg 등이 제시한 비가열 식품의 일반세균 기준치(3 log CFU/g)를 초과한 것으로 확인되었고, 3점의 신선과일 시료에서 대장균이 검출되어 샐러드류 및 신선과일의 원료의 안전성과 제조 및 유통 단계에서의 위생관리가 보다 철저히 수행되어야 할 것으로 판단된다. In this study, the microbial levels on mixed vegetable salads, fresh fruits, and frozen fruits distributed in Korea were comparatively analyzed by food group, region, and quarter. Samples were collected from big markets in large cities from 2018 to 2019 and used for microbiological analysis. The levels of aerobic bacteria for mixed vegetable salads, fresh fruits, and frozen fruits were 6.48, 5.07, and 3.78 log CFU/g, respectively. As a result of analyzing the quarterly contamination levels of aerobic bacteria, the first quarter contamination level was 5.12 log CFU/g while the second quarter showed 6.26 log CFU/g, the third quarter 5.73 log CFU/g, and the fourth quarter 4.42 log CFU/g. A higher number of aerobic bacteria was observed in the second and third quarters when the temperature was higher. There was no difference in the number of bacteria by region. The levels of the coliform group were 1.98 - 3.93 log CFU/g in all samples, and Escherichia coli was detected at 1.38 log CFU/g in 3 out of 27 mixed vegetable salads. Since the mixed vegetable salad and fresh fruit used in this study exceeded the standard (3 log CFU/g) for unheated foods and E. coli was detected in three fresh fruits, stricter hygiene management in the manufacturing stage of salads and fresh fruit is required.

반복적인 모세기관지염, 과반응 기관지염을 보인 영유아의 임상양상, 치료와 자연경과

박현진,김주현,전윤홍,이수영,김상용,강진한,Park, Hyoun Jin,Kim, Joo Hyun,Chun, Yoon Hong,Lee, Soo Young,Kim, Sang Yong,Kang, Jin Han 대한소아감염학회 2014 Pediatric Infection and Vaccine Vol.21 No.1

목적: 영유아기 두 번 이상 반복된 모세기관지염, 즉 과반응 기관지염(RAD)을 보인 환아의 임상양상, 치료와 5년 후 자연경과를 조사하고자 연구를 계획하였다. 방법: 2007년 1월부터 12월까지 연구병원 소아청소년과에 모세기관지염으로 2회 이상 입원한 영유아를 대상으로 하였다. 의무기록을 후향적으로 조사하였고, 추가로 5년 후 2013년 현재의 의학적 상태를 보호자와 전화면담을 시행하여 문의하였다. 결과: 2007년 1년간 총 63명의 영유아들이 2회 이상 모세기관지염으로 입원하였다. 연구대상의 평균연령은 8.1개월이었고, 이들 중 남아는 44명(69.8%)이었다. 입원 중 흡입 스테로이드 치료를 받은 환아는 62명(98.4%), 기관지확장제 치료 53명(84.1%) 항생제 치료 40명(63.5%)이었다. 대상 환아 63명 중 45명과 전화면담이 가능하였고, 이들 중, 2013년 현재 38명(84.4%)은 더 이상 호흡장애가 없었고, 5명(11.1%)은 알레르기 비염, 2명(4.4%)은 천식으로 치료 중이었다. 결론: 영유아기 반복적인 쌕쌕거림을 보였던 RAD 환아들의 대부분은, 호흡기가 성숙된 5년 후에는 더 이상 호흡장애를 보이지 않았다. 모세기관지염에 대한 국내 치료지침이 제안되어야 할 것이고 RAD의 자연경과에 대한 좀더 체계적인 연구가 필요하다. Purpose: The purpose of this study was to investigate the clinical manifestations and 5-year natural course of recurrent bronchiolitis or reactive airways disease (RAD) in infants. Methods: We reviewed the medical records of infants with recurrent bronchiolitis from January 2007 to December 2007 at The Catholic University of Korea St. Mary's Hospital in Incheon, South Korea. Additionally, we telephoned their parents to confirm their present medical statuses. Results: Sixty-three subjects with recurrent bronchiolitis were identified. The mean age at admission was 8.1 months and the number of males was 44 (69.8%). Of the 63 infants with recurrent bronchiolitis, inhaled corticosteroids, bronchodilators, and antibiotics were given to 62 (98.4%), 53 (84.1%), and 40 (63.5%), respectively. Among the total 63 subjects, we were able to contact the parents of 45 children by telephone. None of these children had been hospitalized during the previous one year period due to respiratory infections or for other medical reasons. Of the 45 subjects we were able to contact, 38 (84.4%) had not experienced any further respiratory difficulties at all. Five (11.1%) had been diagnosed with allergic rhinitis while two (4.4%) were being managed for asthma. Conclusion: Most children who presented with recurrent episodes of bronchiolitis in infancy did not show any further respiratory difficulties after five years of age.

습식-펄스방전 복합시스템의 황산화물 및 질소산화물 제거성능 특성

박현진,이환영,박문례,노학재,유정구,한방우,홍기정,Park, Hyunjin,Lee, Whanyoung,Park, Munlye,Noh, Hakjae,You, Junggu,Han, Bangwoo,Hong, Keejung 한국입자에어로졸학회 2019 Particle and Aerosol Research Vol.15 No.1

Current desulfurization and denitrification technologies have reached a considerable level in terms of reduction efficiency. However, when compared with the simultaneous reduction technology, the individual reduction technologies have issues such as economic disadvantages due to the difficulty to scale-up apparatus, secondary pollution from wastewater/waste during the treatment process, requirement of large facilities for post-treatment, and increased installation costs. Therefore, it is necessary to enable practical application of simultaneous SOx and NOx treatment technologies to remove two or more contaminants in one process. The present study analyzes a technology capable of maintaining simultaneous treatment of SOx and NOx even at low temperatures due to the electrochemically generated strong oxidation of the wet-pulse complex system. This system also reduces unreacted residual gas and secondary products through the wet scrubbing process. It addresses common problems of the existing fuel gas treatment methods such as SDR, SCR, and activated carbon adsorption (i.e., low treatment efficiency, expensive maintenance cost, large installation area, and energy loss). Experiments were performed with varying variables such as pulse voltage, reaction temperature, chemicals and additives ratios, liquid/gas ratio, structure of the aeration cleaning nozzle, and gas inlet concentration. The performance of individual and complex processes using the wet-pulse discharge reaction were analyzed and compared.

EVENT in Story - 인사동은 그리운 추억을 보여준다.

박현진,Park, Hyeon-Jin 한국오리협회 2010 오리마을 Vol.83 No.-

건축담론 - 슬기로운 건축사 생활_건축사사무소를 경영하는 리더의 역할

박현진,Park, Hyunjin 대한건축사협회 2021 建築士 Vol.626 No.-

개선된 학부 의공학 소프트웨어 교육과정을 위한 새로운 과목의 제안

박현진,Park, Hyun-Jin 대한의용생체공학회 2011 의공학회지 Vol.32 No.4

Biomedical engineering is a discipline where engineering principles and techniques are applied to the medical field. Biomedical engineering lies between traditional engineering and medicine and is an inter-disciplinary field in its nature. Current Korean undergraduate biomedical engineering curriculum is a simple list of traditional engineering courses combined with basic medical/life science courses. There have been efforts to improve biomedical engineering education to reflect its inter-disciplinary nature. Enhanced software course for biomedical engineering is proposed as a part of effort to overhaul the undergraduate biomedical engineering curriculum. In this newly proposed course, students will learn MATLAB and LabVIEW, which are the most widely used software tools in biomedical engineering.

한국인의 성별에 따른 혈중 요산 농도와 대사증후군 위험 혈액 지표 간의 관련성

박현진,류혜숙,조광현,고재영,윤미은,Park, Hyunjin,Ryu, Hyesook,Jho, Kwanghyun,Ko, Jaeyoung,Yun, Mieun 한국식품영양학회 2016 韓國食品營養學會誌 Vol.29 No.5

It has been reported that the increased uric acid level is associated with metabolic syndrome risk factors in both male and female. However, there has not been enough studies to investigate gender differences of this association in Korea. To evaluate relation between serum uric acids and metabolic syndrome markers, anthropometric and biochemical analyses data was obtained from National Health Examination 2005 and 5,523 (M=3,097; F=2,426) data was analyzed. Results by quartile of serum uric acid levels in females showed that increased serum uric acid level was associated with elevated levels of total-. LDL-cholesterol, and triglycerides, whereas association between serum uric acid and total cholesterol levels was not observed in male subjects. In both female and male, higher quartile of serum uric acid level were linked with lower levels of HDL-cholesterol. In regression analysis, association of serum uric acid levels with fasting glucose levels was significant in female subjects only. In conclusion, higher serum uric acid levels were associated with metabolic syndrome indices, however gender differences were existed for total cholesterol.