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강민수,김형석,박승조 동아대학교 환경문제연구소 1995 硏究報告 Vol.18 No.1
This study was on the removal of phosphorus compounds in domestic and synthetic wastewater using iron-anode electrolytic reactor. The experiments were performed at different current, reaction time and flow rate. The results are as follows ; 1. For the synthetic wastewater with the flow rate of 1.5 ℓ/min and 0.75 ℓ /min, the removal efficiencies were 97% and 98%, respectively. The order conditions of this continuous experiments are current density 2.54 A/dm² and reaction time 20 minutes. 2. The optimal conditions of the batch experiment for synthetic wastewater were current density 0.95 A/dm² and reaction time 3.0 minutes with no addition of electrolyte. With electrolyte, the optimal conditions were current density 2.54 A/dm² and reaction time 1.0 minutes. For the both experiments, the removal efficiencies were far over 97%.
建築物에 있어 太陽電池의 태양광 추적기법 適用 가능성에 관한 實驗的 硏究
강성범,오민석,김회서 대한건축학회 2003 대한건축학회논문집 Vol.19 No.9
The amount of electric power produced by Photovoltaic(PV) depends on the density of daylight incident. In addition to the development of high efficient PV, a study on the methods for maximizing the density of daylight incident to PV surface is essential to increase the production of electric power. In this respect, many studies on light tracking and gathering device have been conducted in the advanced countries such as U.S. and Japan. However, those studies in Korea are still in an early stage. Therefore this study aims to present the optimal tracking system for the application of PV to buildings considering domestic weather condition. In this study, the tracking type, the interval of tracking offset and optimum integration of tracking system were investigated.
중소기업에서의 품질/환경 통합경영시스템 구축 사례 연구
강민석,장원철,박병춘 한국품질경영학회 2003 품질경영학회지 Vol.31 No.1
This study deals with a case analysis on the implementation of ISO 9000/14000 Integrated Management System. The intention is to provide some general guidelines, in particluar, to small-to-medium-sized companies that are planning to introduce the Integrated Management System. First we briefly review each of the ISO 9000 series, ISO 14000 series and Integrated Management System. We then investigate the case of a small-sized company that have built and is successfully operating the Integrated Management System. We start with introducing the company, and then examine the background and the procedure for implementing the Integrated Management System. We investigate effects of the Integrated Management System, which are the main focus of this paper. This study is meaningful in that, to our best knowledge, it is the first field report appearing in the literature in regard to the actual implementation of ISO 9000/14000 Integrated Management System in Korea.
초임계 이산화탄소를 이용하는 친환경 공정에 의한 다공성 고분자의 제조
강세란,홍성수,이민규,이석희,천재기,주창식 한국환경과학회 2004 한국환경과학회지 Vol.13 No.3
An experimental study on the preparation of monolithic porous polymers by environmentally friend process in supercritical carbon dioxide has been carried out. Polymerization mixture composed of a cross-linking monomer, initiator and functional co-polymer was charged in the reactor with sapphire window. After the system was purged with a flow of CO₂ for 15 min, the reactor was pressurized with liquid CO₂ up to 100 bars. The reactor was isolated from and placed back to the system via quick connector for shaking until the mixture had become fully homogeneous. The reactor was then heated and pressurized to the required reaction conditions and left overnight. After cooling and CO₂ evacuation, the polymer was removed from the reactor as dry, white, continuous monoliths. The effect of experimental conditions on the physical properties of porous polymer was systematically examined, and it was found that monomer content had a major effect on the physical properties of the polymers.
김민근,주혜원,강경필,최병돈,박민석,변영섭,고충원,이건주,김병옥 인제대학교 2006 仁濟醫學 Vol.27 No.-
Acute myocardial infarction(AMI) due to coronary embolism can occur in patients with normal coronary artery. Coronary embolism is believed to be a cause of acute myocardial infarction when emergent coronary angiography shows perfectly normal coronary trees, except for the finding of coronary artery occlusion. In this report, we describe four patients with AMI due to coronary embolism who were successfully treated using a thrombus aspiration device and anticoagulation, and those patients had intracardial thrombus arising from the left atrium due to chronic atrial fibrillation and valvular heart disease. Patients with chronic or paroxysmal atrial fibrillation can present with AMI due to coronary embolism, and thrombus aspiration with percutaneous aspiration device is a feasible treatment option for these patients along with anticoagulation the rapy.
박강민,양현우,이성훈,배종석 인제대학교 2008 仁濟醫學 Vol.29 No.-
Hypertensive encephalopathy is a medical emergency of which clinical manifestations are associated with bilateral posterior cerebral lesions. However, neuroimaging findings have been reported in only a few cases. We describe a case of hypertensive encephalopathy in which high blood pressure was accompanied by headache, generalized seizure and mental deterioration and T2 weighted magnetic resonance images showed hyperintense lesions in the pons and left occipital lobe. The lesions were nearly disappeared after stabilization of blood pressure, suggesting that induced edema could be the main cause of the MR imaging-observed hyperintensity.