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직사일광을 고려한 전천공 조건에서 상부채광 형태에 따른 박물관 전시공간의 자연채광 성능 평가
김창성,김강수 대한건축학회 2006 대한건축학회논문집 Vol.22 No.4
Daylight is one of the major parameters which determine the efficient exhibition in museums. To make better of the space quality, many architects have tried to predict daylight performance in the design of museum. The aim of this study is to predict daylight performance in the exhibition space of a museum installed with various shapes of toplight.After an examination of various toplighting systems of museums, three major toplight shapes such as the horizontal, the inclined and the vertical toplights were evaluated for daylighting performance. First, the daylight performance was estimated using the effective transmittances for light well. Then, the effects of sunlight as well as the design sunlight ratio in the exhibition space were simulated in order to establish appropriate shapes of toplight for the exhibition spaces. Radiance was applied as a simulation program and all the data were simulated in the conditions of clear sky with sun.
심폐소생술 전화 지도를 포함한 119구급상황관리센터 이용 현황 분석
김창성,김혁훈,김기운,이슬기,김수태,최상천,조준필 대한응급의학회 2018 대한응급의학회지 Vol.29 No.4
Objective: Analyses of the status of 119 emergency situation control center (119 ESCC) usage are lacking. Therefore, this study investigated the status of the 119 ESCC usage, including dispatcher-assisted cardiopulmonary resuscitation (DA-CPR) instructions. Methods: The emergency activity daily reports and emergency instruction sheets of 119 ESCC from January to December 2016 were reviewed. For more accurate status analysis, the computerized data of the 1339 Emergency Medical Information Center from January to December 2011 were also reviewed. Results: In 2016, the total usage of the 119 ESCC was 1,393,876 calls, which was 27.8% lower than the 1,930,977 calls in 2011. Of the 1,393,876 eligible calls, the most common call was hospital guidance (n=743,799, 53.4%), followed by first aid (n=397,620, 28.5%), disease consultation (n=150,128, 10.8%), medical oversight (n=81,174, 5.8%), and interhospital transfer (n=5,123, 0.4%). Regarding the user number per 10,000 persons, Daejeon was the greatest at 57.2, whereas Changwon was the lowest at 11.5. A total number of DA-CPR was 19,439. The time from the call to chest compression were 173±88.6 seconds in the subjects having previous cardiopulmonary resuscitation training and 184.0± 88.2 in the subjects having no such training (P<0.001). Conclusion: The ratio of first aid instructions, including DA-CPR, among total usage of the 119 ESCC increased but the overall usage of the 119 ESCC decreased. Therefore, further efforts will be needed to improve the quality and professionality of the information provided through the operation of 119 ESCC.
에코스쿨 계획을 위한 초등학교 실내 환경계획 요소 조사
김창성,강승구 한국교육시설학회 2008 교육시설 Vol.15 No.6
Global environment is getting deteriorated at an alarming rate. Eco-school could be one of the effective solutions to protect our environment and a good sample of architecture to economize in total energies, resources and greenhouse gases. In case of our country, the study of eco-school planning is not sufficient compared with other countries, so this paper would be a good study on the indoor environment of the classroom by surveying their opinions and ideas from the group of users in elementary school. The result of this study shows that the proper installation of building equipment and nature ventilation system is necessary to provide delightful environment for the students and to save the energy. To ensure that we have adequate saving and protection, it is necessary to change the existing appraisal standard. Global environment is getting deteriorated at an alarming rate. Eco-school could be one of the effective solutions to protect our environment and a good sample of architecture to economize in total energies, resources and greenhouse gases. In case of our country, the study of eco-school planning is not sufficient compared with other countries, so this paper would be a good study on the indoor environment of the classroom by surveying their opinions and ideas from the group of users in elementary school. The result of this study shows that the proper installation of building equipment and nature ventilation system is necessary to provide delightful environment for the students and to save the energy. To ensure that we have adequate saving and protection, it is necessary to change the existing appraisal standard.
Optimal blood pressure target and measurement in patients with chronic kidney disease
김창성,최홍상,배은희,김수완,마성권 대한내과학회 2019 The Korean Journal of Internal Medicine Vol.34 No.6
The prevalence rates of hypertension and chronic kidney disease (CKD) are increasing with the aging of the population. Hypertension and CKD are closely related, and hypertension with accompanying CKD is difficult to control. This difficulty controlling blood pressure (BP) can be explained by changes in diurnal variation in BP, such as non-dipping and reverse dipping patterns, increased pulse pressure, and BP variability in CKD patients resulting in a high frequency of nocturnal hypertension or masked hypertension. CKD patients with uncontrolled or nocturnal hypertension are at increased risk for cardiovascular disease, progression of CKD, and all-cause death. Recent studies have shown that intensive reduction of systolic BP below 120 mmHg is seems to favor in CKD patients regardless of the presence or absence of diabetes. As BP control is difficult in patients with CKD, appropriate measurement of BP is important. Automated BP monitoring could reduce the so-called “white coat effect” (spike in BP) that may be triggered by measurement in a clinical setting. Moreover, out-of-office BP monitoring at home or ambulatory BP monitoring for 24 hours may provide critical information regarding diurnal BP variability and nocturnal BP in patients with CKD.