• Proceedings of the Korea Air Pollution Research Association Conference
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• 1991.11a
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• pp.44-48
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• 1991

• Proceedings of the Korea Air Pollution Research Association Conference
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• 1996.10a
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• pp.66-67
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• 1996

• KSCE Journal of Civil and Environmental Engineering Research
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• v.40 no.3
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• pp.321-330
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• 2020

The purpose of this study is to present the appropriate standby space for the mechanical parking lot considered parking queue. This analysis is based on the field-study by results of the influential factors on the parking queue of mechanical parking lots in the commercial area of Gwang-ju metropolitan city. In this study, the parking queue was analized through the simple modeling using Vissim based on average service rate and average arrival rate from the result of field-study. As a result of applying the field survey products to the theoretical queue model, no significant result was obtained when the traffic intensity exceeded 1. Therefore, parking queue was analyzed through simple modeling using Vissim, and the model for calculating the proper parking queue size of the mechanical parking lot by size was derived. The model for estimating of an appropriate mechanical parking standby space considering parking queue presented in this study is expected to be a criterion for considering the appropriate parking space of a new building, and also it can be used to minimized the traffic impact due to the parking queue by the lack of standby space.

• Journal of Preventive Medicine and Public Health
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• v.34 no.2
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• pp.109-118
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• 2001

The purpose of this review is to discuss the debate concerning the interpretation of epidemiologic studies on particles and health effects. Study of the 1952 air pollution disaster in London established that very high levels of particulate-based smog can cause dramatic increases in daily mortality. However, recent epidemiologic studies have reported statistically significant health effects and mortality due to low levels of air pollution. The statistical significance does not prove causation in observational studies; therefore it is necessary to evaluate these associations. There are arguments for and against each of the numerous studies using Hill's criteria, however the body of accepted evidence supports the causal association. In particular, a high level of consistency in the estimated effect of PM10 has been observed across studies worldwide. The mechanism of the relationship between air pollution and health effects is not obvious. The mechanism of particle-induced injury may involve the production of an inflammatory response by the particulate. The harvesting and the threshold effect are also major concerns regarding the health effects of air pollution. However, current epidemiologic findings indicate that linear models lacking a threshold are appropriate for assessing the effect of particulate air pollution on daily mortality even at current levels.

• Proceedings of the Korean Environmental Sciences Society Conference
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• 2020.10a
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• pp.46-46
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• 2020

• Journal of Korean Society of societal Security
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• v.2 no.1
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• pp.65-74
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• 2009

In this study, the air pollution management system based GIS has been developed to estimate the emission rate and air pollution modeling of air pollutants, effectively. This system is able to estimate emission rate of air pollutant and to analyze the emission characteristics with high spatial and temporal resolution. air pollution modeling. The air pollution management system was applied to Gwangyang Bay including large industry complex with a large number of emission sources. The air pollution management system was constructed using the spatial database of emission sources in Gwangyang Bay. It was found that the estimated emission rates of air pollutants is similar to the emission characteristics in Gwangyang Bay. Also, the spatial distribution of pollutants was similar to the location of emission sources. The predicted results of air pollution model was showed a good correlation coefficient (0.75) for TSP. The air pollution management system is expected to be effective tool (database system (GIS)) for the management and the control of air pollution.

• Journal of Distribution Science
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• v.7 no.2
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• pp.45-61
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• 2009

The aims of this paper is to examine the key factor of customer satisfaction in the medical service. Especially service waiting is a significant component of the customer's overall satisfaction with the service process. For this purpose, this study proposed 6 hypotheses as follow : H1 : Waiting cost, affect on perceived service waiting, will be different between patient customer group and health care group. H2 : Controllability of the cause, affect on perceived service waiting, will be different between patient customer group and health care group. H3 : Controllability of the cause affect on perceived service waiting, will be different between patient customer group and health care group. H4 : Waiting environment, affect on perceived service waiting, will be different between patient customer group and health care group. H5 : Transaction importance, affect on perceived service waiting, will be different between patient customer group and health care group. H1 : Waiting cost, Controllability of the cause, Controllability of the cause, Waiting environment, Transaction importance, customer satisfaction will affect on service waiting significantly This study find that 1) Waiting cost and Transaction importance are significant variables to influence customer satisfaction between patient group and health care group. 2) customer satisfaction is very important variables to minimize perceived service waiting.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.05a
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• pp.1-489
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• 2003

환경보전의 초석을 쌓아 올렸던 20세기를 뒤로하고 새로운 기술 도약과 발전을 지향하는 21세기를 맞이하는 가운데, 어느덧 우리 학회도 창립 20주년을 맞이하게 되었습니다. 1983년 ‘한국대기보전학회’하는 학회명으로 출범하였던 우리학회는 1998년 현재의 ‘한국대기환경학회’로 명칭을 변경하여 현재에 이르기까지 대기환경분야의 인재양성, 학술연구과 정책방안 제시 등 수많은 활동들을 펼쳐왔습니다. 특히, 2001년에는 제12차 세계대전보전대회(IUAPPA 12th World Clean Air and Environment Congress ＆ Exhibition)를 성황리에 개최하였으며, 2002년 12월에는 우리 학회지가 KSCI로 등재되는 등 명실공히, ‘세계 속의 학회’로 발전하기에 이르렀습니다. 이제 20살의 청년으로 성장한 우리 학회는 숨가쁘게 뛰어온 지난 과정을 되돌아보고 한 단계 더 높이 도약하기 위하여, 그 동안의 다양한 활동과 사연을 정리하여 학회 창립 20주년 기념집인 ‘대기환경 20년사’를 발간하게 되었습니다. 본 기념집에는 학회 활동을 한눈에 보여주는 화보와 역대 회장님들의 회고를 비롯하여 대기환경의 주요 분야를 대상으로 각 분야의 과거, 현재, 미래에 관한 고견 등을 담았습니다. 부디 20주년 기념집이 살아있는 ‘대기환경보전’의 지침서로서 앞으로 대기환경을 연구하는 많은 사람들에게 유용한 자료가 되기를 기원하는 바입니다. 우리 학회의 오늘이 있기까지 학회 발전을 위하여 최선을 다해주신 선배님들과 회원들의 노고에 심심한 감사를 드립니다. 이제 ‘성년’으로 성장한 우리 학회는 ‘세계속의 학회’로서 우리 학회에 부여된 시대적 소명을 인식하고 우리나라뿐만 아니라 전 지구의 대기환경보전과 대기환경분야의 인재 양성에 일익을 담당하는 학술기관으로 거듭날 것을 다짐하는 바입니다. 끝으로, 본 기념집이 발간되기까지 수고를 아끼지 않으신 조강래 위원장을 비롯한 20주년 특별위원회 위원들과, 귀한 시간을 내주시어 기념집 옥고를 작성해주신 집필진, 그리고 기념집의 완성도를 높이기 위하여 수고한 사무국 간사님들께 심심한 감사 인사를 드립니다. 또, 본 기념집의 발간을 기꺼이 후원해 주신 기업체 여러분께도 고마운 마음을 전합니다. 학회 창립 20주년을 회원 여러분과 함께 축하하며, 회원 여러분의 무궁한 발전과 건투를 바라마지 않습니다. 우리 학회는 ‘21세기 푸른하늘의 꿈’을 회원 여러분과 함께 이루어 갈 것입니다. 감사합니다

• Journal of Korean Society for Atmospheric Environment
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• v.22 no.5
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• pp.535-553
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• 2006

Various aspects of air quality problems caused by aerosols in Seoul are discussed. Based on the measurement data, it was found that the general air quality in Seoul has improved during last twenty years. However, PM10 concentration in Seoul is still higher than other cities in Korea and worldwide. At Seoul, it was suggested that secondary aerosols are as important as aerosols directly emitted in Seoul or transported from outside.

• Journal of the Korea Convergence Society
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• v.11 no.5
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• pp.153-158
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• 2020

The present study identify the predictive power of confrontational naming and generative naming as screening tests for normal and early cognitive impairment. The subjects were analyzed for 203 healthy elderly, 106 mild cognitive impairment (MCI), 31 mild dementia. The confrontational naming was measured by the short-term Korean Boston Name Waiting Test, and the generative naming was measured by the Control Associative Word Test. As a result of polynomial logistic regression, both confrontational naming and generative naming had a significant effect on discriminating cognitive impairment (MCI, mild dementia) in general elderly (p<0.05). On the other hand, when distinguishing mild dementia from mild cognitive impairment, the generative naming-phonetic test had no significant odds ratio. The results of this study suggest that when discriminating mild dementia in mild cognitive impairment group, it is not meaningful to look only at the total score of generative naming test.