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박화춘(Park Hwa-Choon),정모(Chung Mo) 한국태양에너지학회 2009 한국태양에너지학회 논문집 Vol.29 No.4
Energy demands for hotels in Korea are surveyed and statistically analyzed to develop calculation models for a simulation. Daily energy loads of 16 hotels located in Seoul, Busan, Daegu, Inchon, and Daejon are analyzed based on energy log sheets. Detailed hourly loads are field measured for 3 hotels that are carefully selected among the surveyed. One of the salient features for energy consumption by hotels is their weekly periodicity. Relatively large values of deviations are observed for both heat and electricity loads through the country. The mains factors are: location, hotel grade (luxuriousness) and insulation. Detailed quantitative information such are annual average, daily variation, and hourly patterns are provided.
박화춘(Hwa-Choon Park),정모(Mo Chung) 대한설비공학회 2009 설비공학 논문집 Vol.21 No.10
Energy demand characteristics of hotel, hospital, and office building are compared to provide guidelines for combining building in community energy system design. The annual, monthly, and daily energy demand patterns for electricity, heating, hot water and cooling are qualitatively compared and important features are delineated based on the energy demand models. Key statistical values such as the mean, the maximum are also provided. Important features of the hourly demand patterns are summarized for weekdays and weekends. Substantial variations in both magnitudes and patterns are observed among the 3 building types and smart grouping or combination of building type and size is essential for a successive energy supply.
박화춘(Hwa-Choon Park),정모(Mo Chung) 대한설비공학회 2009 설비공학 논문집 Vol.21 No.11
Energy consumption data are surveyed and measured to develop energy demand models for hospital buildings as part of a complete package. Daily consumption profiles for electricity, heating, cooling and hot water are surveyed for 14 carefully chosen hospitals to establish energy demand patterns for a time span of a year. Then the hourly demand patterns of the 4 loads are field-measured for different seasons and statistically analyzed to provide higher resolution models. Used in conjunction with energy demand models for other types of buildings, the high resolution of 8760 hour energy demand models for a hospital for a typical year will serve as building blocks for the comprehensive model that allows the estimation of the combined loads for arbitrary mixtures of buildings.
영상처리를 이용한 자궁경부 세포진의 자동탐색 방법에 관한 연구
은성경,박찬모,박화춘,윤소영,조민선,조수연,김성숙,Un, Sung-Kyung,Park, Chan-Mo,Park, Hwa-Choon,Yoon, So-Young,Cho, Min-Sun,Cho, Soo-Yeon,Kim, Sung-Sook 대한세포병리학회 1994 대한세포병리학회지 Vol.5 No.1
Cancer of the cervix is the most common malignancy in women in developing countries and the second most common cancer in women throughout the world with approximately 500,000 new cases each year. Prevention of this large number of premature deaths among women is, therefore, a goal worthy of urgent and serious consideration. Due to its high diagnostic disagreement among pathologists and large quantity of specimens, it is necessary to develop an automatic screening system measuring morphologic and densitometric features of the samples. Many research works have been published but most of them used Feulgen stained specimens which are not a usual staining method used in clinics. In this thesis, an automatic cancerous nucleus detection method essential to a screening system with papanicolaou stained specimens called Pap-smear is proposed which employs image processing techniques. It uses edge information to segment objects and morphologic as well as densitometric information to distinguish cancerous nuclei from dirts or normal nuclei. It has produced useful results in our study.
임용훈(Im Yong Hoon),박화춘(Hwa-Choon Park),최영호(Choi Young Ho),정모(Mo Chung) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
In this paper, a simulation approach for the optimum design of cogeneration system is described. For the purpose of the systematic analysis, a simulation tool is developed with which the prediction of the energy load, calculation of operation data according to prime mover or capacity of it, and estimation of economic gains can be carried out. As for the criterion of the optimum design, the economic gains by adopting cogeneration system is taken. Based on the capital, operation, and maintenance costs etc, LCC analysis is to be carried out for the scenarios respectively. In this study, the simulation for the apartment complex is performed and the analysis of the results are described in detail. The effects of the operation parameters such as capital cost, fuel cost, and unit cost for the purchase or sale of heat and electricity on overall economy are also be considered by sensitivity study.
노후된 아파트단지 리모델링시 경제성분석에 의한 난방방식 비교 검토
임용훈(Yong Hoon Im),박화춘(Hwa-Choon Park) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.11
In recent, the effort of reducing heating cost by remodeling prevails around apartment complex of it's declining years. It has been almost proven that the central heating system is inferior to other heating systems such as separate heating, district heating, or cogeneration heating system etc. from the point of view of economy and energy reduction. However, it has not been clearly clarified yet which system is better among other heating systems. And it makes the inhabitants be hardly distinguishable in choosing appropriate heating system in case of remodeling. In this study, the economy of heating systems for remodeling apt. of it's declining years is compared and assessed based on the result for the case study in remodeling of an apartment complex, focusing on the district heating and cogeneration systems. The optimal heating system from the national and consumer point of view is to be discussed as well.