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부산시 남부하수처리시설과 인근 하천에서 발생하는 악취물질 확산 특성
문성만 ( Seong Man Mun ),이형돈 ( Hyung Don Lee ),조상원 ( Sang Won Cho ),강동효 ( Dong Hyo Kang ),박해식 ( Hae Sik Park ),오광중 ( Kwang Joong Oh ) 한국환경과학회 2011 한국환경과학회지 Vol.20 No.8
The covered stream of cities are considered an odor source. Also, the public do not want a wastewater treatment plant(WWTP) near their properties due to the emission of odor emanating from such sources, although they play an important role in urban development. The purpose of this study is to analyze the pattern distribution of the odorous compounds from the Nambu WWTP and Youngho stream in Busan. odor sampled four times were analyzed by instrumental analysis method and indirect olfactory method. The kinds of offensive odorous compounds examined are acetaldehyde, propion aldehyde, hydrogen sulfide, methyl mercaptan, dimethyl sulfide and ammonia. Also, Concentration of air pollutants has been calculated by ISCST3 models. At the result of this study, The Nambu WWTP releases sulfur compounds. And the major odorous were hydrogen sulfide (1,475 ppb) and acetaldehyde (95 ppb) at Youngho stream. The stink which residents feel will point out the Nambu WWTP mainly if the odor is removed with the improvement of a Youngho stream. Accordingly, we should pay more attention to appropriate components to processes in odor reducing plan at Nambu WWTP.
카테킨 섭취와 지구성 운동이 Obese Zucker Rat의 골격근 형태별 GLUT-4 단백질과 혈청 지질 성분에 미치는 영향
이규성(Lee Gyu Seong),김문희(Kim Mun Hui),홍순모(Hong Sun Mo),허성민(Heo Seong Min),원상호(Won Sang Ho),김윤만(Kim Yun Man),윤지성(Yun Ji Seong),조준용(Jo Jun Yong) 한국사회체육학회 2003 한국사회체육학회지 Vol.20 No.2
Obesity and diabetes have been increased at an alaming rate in recent years and is now a worldwide health problem. We investigate the effects of 8wk feeding tea catechin which is natural polyphenolic compounds and 8wk treadmill exercise on the skeletal muscle GLUT-4 protein, serum glucose, insulin and lipids(TC, TG, HDL-C, LDL-C) in the insulin resistant obese Zucker rats(fa/fa). Male obese Zucker rats either remained sedentary(fa/fa, n=4), recieved catechins(5㎖=2.5g/250㎖(1%) day-1, fa/fa, n=4), performed treadmill exercise(fa/fa, n=4) or underwent both catechin supplementation and treadmill exercise(fa/fa, n=4) for 8wk. During oral glucose tolerance test(OGTT), treadmill exercise alone or in combination with catechins resulted in a significant lowering of the glucose, insulin and TC, TG, LDL-C responses compared with sedentary controls. Treadmill exercise or in combination with catechin group individually increased insulin-regulated glucose transporter(GLUT-4) in isolated soleus, plantaris and gastrocnemius muscle. The greatest expressions in GLUT-4 protein in these muscles were observed in the treadmill exercise group. Thus, enhancement in glucose transport in soleus, plantaris and gastrocnemius muscle due to treadmill exercise and in combination with catechin was related to enhanced GLUT-4 protein and decrease glucose, insulin and TC, TG, LDL-C. These results suggest that treadmill exercise and in combination with catechin individually may reduce the risk of associated diseases including diabetes and coronary heart disease.
상관관계 분석을 통한 건설관리 분야와 자동화기술간 연관성 분석
문성환 ( Mun Seong-hwan ),조규만 ( Cho Kyu-man ),김태훈 ( Kim Tae-hoon ) 한국건축시공학회 2019 한국건축시공학회 학술발표대회 논문집 Vol.19 No.2
The construction industry is in the process of changing from the existing labor-intensive production system to a construction automation system using advanced information and communication technologies. Accordingly, in order to identify key research areas and utilization technologies in the field of construction automation, this study collected the latest 17 years (2000-2016) of papers published in International Symposium on Automation and Robotics in Construction (ISARC) and conducted a correlation analysis between the construction management areas and automation technologies based on the keyword frequency. As a result, the BIM, WSN, and Augmented reality were extracted as the technology keywords with high correlation with various areas of construction management.
탄산화 환경에 노출된 RC 지하구조물의 내구수명과 플라이애쉬 배합 특성을 고려한 탄소 배출 및 흡착 평가
김성준(Seong-Jun Kim),문진만(Jin-Man Mun),이학수(Hack-Soo Lee),권성준(Seung-Jun Kwon) 한국콘텐츠학회 2014 한국콘텐츠학회논문지 Vol.14 No.12
본 연구에서는 실제 지하구조물에 사용되었던 제원과 배합에 대하여, 자재생산단계, 운송단계, 시공단계, 탄소저장량, 보수단위 탄소배출량을 고려하여 RC 지하구조물의 탄소배출 및 흡수량을 내구수명에 따라 평가하였다. 혼화재료를 포함한 4가지 배합이 고려되었고, 마이크로 모델을 이용하여 이산화탄소 확산계수를 도출하였다. 탄산화 내구한계상태를 고려하여 탄소 배출 및 흡수량을 평가하였는데, 단위 시멘트량이 높은 배합에서 초기탄소배출량이 높게 평가되었으며, 탄산화 진행속도가 증가함에 따라 이산화탄소 저장량은 증가하였다. 또한 대기 중의 이산화탄소 농도인 실측치(600ppm)이외에 다양한 이산화탄소 농도를 고려하여 RC 지하구조물의 탄소배출 및 흡수량을 평가하였다. 이산화탄소 농도의 증가로 탄산화 진행속도가 증가함에 따라 보수횟수가 증가하여 탄소배출량이 높게 평가되었다. 사용수명동안 전체 탄소 발생량을 감소하기 위해서는 OPC사용을 통해 탄소 흡착량을 늘리는 것보다 플라이애쉬와 같은 혼화재료를 치환하여 초기 탄소배출량을 줄이는 것이 결정적이다. OPC 생산시 과다한 CO₂가 발생하고 사용중의 탄소 흡착은 피복콘크리트에 국한하여 큰 효과를 나타내지 못하기 때문이다. In this paper, CO₂ emission and storage amount are evaluated for real RC (Reinforced Concrete) underground structure considering CO₂ amount including material manufacturing, moving, and construction, repairing timing stage regarding extended service life. Four mix proportions with mineral admixtures are prepared and CO₂ diffusion coefficient are obtained based on a micro modeling. Referred to carbonation durability limit state, CO₂ emission and storage amount are evaluated, which shows higher initial CO₂ emission is caused due to larger unit content of cement and the storage increases with more rapid carbonation velocity. Furthermore various CO₂ concentration is adopted for simulation of CO₂ evaluation including measured CO₂ concentration (600ppm). With higher concentration of CO₂outside, carbonation velocity increases. In order to reduce CO₂ emission through entire service life, reducing initial CO₂ emission through mineral admixture like fly ash is more effective than increasing CO₂ storage through OPC since CO₂ is significantly emitted under manufacturing OPC and CO₂ storage in cover concrete of RC structure is not effective considering initial concrete amount in construction.
성문혁 ( Mun Hyuk Seong ),김성무 ( Sung Moo Kim ),유숙희 ( Suk Hee Yoo ),박우리 ( Woo Ri Park ),안진영 ( Jin Young An ),최강현 ( Kang Hyeon Choe ),이기만 ( Ki Man Lee ),김시욱 ( Si Wook Kim ) 대한결핵 및 호흡기학회 2011 Tuberculosis and Respiratory Diseases Vol.70 No.3
Cholethorax is a bilious pleural effusion caused by a pleurobiliary fistula or leakage of bile into the pleural space. Most cases of cholethorax arise from a complication of abdominal trauma, hepatobiliary infection, or invasive procedures or surgery of hepatobiliary system. However, we experienced a case of a patient with cholethorax of unknown origin. There was no evidence of pleurobiliary fistula or leakage of bile from the hepatobiliary system although we examined the patient with various diagnostic tools including chest and abdominal computed tomography, endoscopic retrograde cholangiopancreatography, tubography, bronchofiberscopy, hepatobiliary scintigraphy and video-assisted thoracoscopic surgery. Herein we report a case of cholethorax for which the specific cause was not identified. The patient was improved by percutaneous drainage of pleural bile.