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Personalized Healthcare System for Chronic Disease Care in Cloud Environment
정상진,김용운,윤찬현 한국전자통신연구원 2014 ETRI Journal Vol.36 No.5
The rapid increase in the number of patients withchronic diseases is an important public healthcare issue inmany countries, which accelerates many studies on ahealthcare system that can, whenever and wherever,extract and process patient data. A patient with a chronicdisease conducts self-management in an out-of-hospitalenvironment, particularly in an at-home environment, soit is important to provide integrated and personalizedhealthcare services for effective care. To help provideeffective care for chronic disease patients, we propose aservice flow and a new cloud-based personalizedhealthcare system architecture supporting both at-homeand at-hospital environments. The system considers thedifferent characteristics of at-hospital and at-homeenvironments, and it provides various chronic disease careservices. A prototype implementation and a predicted costmodel are provided to show the effectiveness of the system. The proposed personalized healthcare system can supportcost-effective disease care in an at-hospital environmentand personalized self-management of chronic disease in anat-home environment.
AERMOD 모델을 이용한 경기도 표준 돈사의 악취 이격거리에 대한 연구
정상진 한국냄새환경학회 2018 실내환경 및 냄새 학회지 Vol.17 No.3
The annoyance potential for odor sources can be evaluated by separation distances. A separation distance between a standard pig farm and a residential area was investigated by the AERMOD model. The studied area comprised four sites in Korea. The study sites were Paju, Yangpyeong, Suwon, and Icheon, respectively. The separation distances criteria of the three reference Odor Impact Criteria (OIC) were used to evaluate the separation distance. Results show that separation distances for the four sites were calculated 20 m from the fence in the existing pig farm criteria case [exceedance probability P (%) = 2.0% and concentration = 6 OU] in Ireland. In the case of the new pig farm criteria [(exceedance probability P (%) = 2.0% and concentration = 3 OU) of Ireland, results show that the separation distances of the four locations were between 120 m and 145 m from the fence. These values were about 3.0~4.5 times larger than those of the existing pig farm criteria case. In the case of a concentration of 1 OU and the exceedance probability P (%) of a 2.0% criteria, the separation distances of the four sites ranged from 250 m to 290 m.
A CFD Study of Near-field Odor Dispersion around a Cubic Building from Rooftop Emissions
정상진 한국대기환경학회 2017 Asian Journal of Atmospheric Environment (AJAE) Vol.11 No.3
Odor dispersion around a cubic building from rooftop odor emissions was investigated using computational fluid dynamics (CFD). The Shear Stress Transport (here after SST) k-ω model in FLUENT CFD code was used to simulate the flow and odor dispersion around a cubic building. The CFD simulations were performed for three different configurations of cubic buildings comprised of one building, two buildings or three buildings. Five test emission rates were assumed as 1000 OU/s, 2000 OU/s, 3000 OU/ s, 4000 OU/s and 5000 OU/s, respectively. Experimental data from wind tunnels obtained by previous studies are used to validate the numerical result of an isolated cubic building. The simulated flow and concentration results of neutral stability condition were compared with the wind tunnel experiments. The profile of streamline velocity and concentration simulation results show a reasonable level of agreement with wind tunnel data. In case of a two-building configuration, the result of emission rate 1000 OU/s illustrates the same plume behavior as a onebuilding configuration. However, the plume tends to the cover rooftop surface and windward facet of a downstream building as the emission rate increases. In case of a three-building configuration, low emission rates (<4000 OU/s) form a similar plume zone to that of a two-building configuration. However, the addition of a third building, with an emission rate of 5000 OU/s, creates a much greater odorous plume zone on the surface of second building in comparison with a two-building configuration.
건물 꼭대기에 설치된 굴뚝에 의하여 형성되는 오염물의 농도장에 관한 실험적 연구
정상진 경기대학교부설 산업기술종합연구소 1998 산업기술종합연구소 논문집 Vol.15 No.-
Flow velocity and concentration field around building were investigated through water channel experiment. Measured velocity in disturbed boundary layer was compared with wind tunnel result. Concentration measurements in disturbed boundary layer were made in physical model of building which the aspect ratios ( H/W : the ratio of building height to building width) were varied from 0.33 to 1.8. Measured velocity field was good agreement with that of wind tunnel result. Observed concentration was normalized by flow velocity and dye emission rate. Normalized building leeward face concentrations varied with aspest ratios. And normalized maximum concentration was located around building leeward top.