• Journal of odor and indoor environment
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• v.17 no.4
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• pp.303-314
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• 2018

The urban railway system is a convenient public transportation system, as it carries many people without increasing traffic congestion. However, air quality in urban railway environments is worse than ambient air quality due to the internal location of the source of air pollutants and the isolated space. In this paper, characteristics of particulate matter (PM) pollution in urban railway environments are described from the perspective of diurnal variation, chemical composition and source apportionment of PM. PM concentrations in concourse, platform, passenger cabin, and tunnel are summarized through an analysis of 34 journal articles published in Korea and overseas. This information will be helpful in developing effective policies to reduce PM pollution in urban railway environments.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.27 no.6
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• pp.513-522
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• 1998

우리나라의 여름 기후는 고온 다습한 특징을 갖고 있다. 고온 다습한 지역에서는 습도가 쾌적성을 결정하는데 중요한 요소가 되기 때문에, 습도가 높으면 온도가 그다지 높지 않더라도 쉽게 무더위를 느낀다. 이러한 계절적 특성을 없애 쾌적한 생활을 영위하기 위하여 생활의 질적 향상과 더불어 공조장치의 수요가 매년 두드러지게 증가하고 있다. 특히, 실내의 경우에는 공조장치 중 대표적인 에어컨(air conditioner)으로 냉방을 행함으로써 고온 다습한 여름철의 거주공간을 개선하고 있다. 그러나 고온 다습한 환경하에서의 과다한 에어컨 사용은 인체의 온열 환경적 측면에서 오히려 불리하다. 왜냐 하면, 에어컨에서는 여름철에 잠열(latent heat)을 고려해야 함에도 불구하고 단지 현열비(sensible heat factor)로 취출온도를 결정하고 있기 때문이다. 그 결과, 실내가 과다하게 냉각되어 재실자에게 불쾌감은 물론, 심지어 냉방병도 초래할 수가 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.908-909
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• 2022

인체의 미세먼지 노출에 의한 연구가 활발히 진행되면서 미세먼지와 건강 영향에 대한 인과 관계가 입증되고 있다. 미세먼지는 기침, 재채기, 심혈관 질환, 폐암 등 가벼운 증상부터 심각한 질병까지 인체의 건강에 다양하게 영향을 미칠 수 있다. 미세먼지는 2000 년 초부터 꾸준히 높은 농도를 보여왔지만, 사람들이 실제로 미세먼지를 위험 물질로 인식하기 시작한 것은 10 년이 채 되지 않았다. 이에 본 논문은 실외 미세먼지에 대한 정보 제공뿐만 아니라 사용자가 실제로 위치한 실내 미세먼지 농도까지 함께 제공하여 미세먼지에 관한 관심을 증가시키고자 한다.

• 월간 기계설비
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• no.11 s.220
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• pp.39-41
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• 2008

패시브하우스는 주거공간에 필요한 공기량을 단지 신선한 외부의 공기만을 데우거나 식힘으로 실내 열적 쾌감을 만족 시킬 수가 있는 건물을 말한다. 이 정의는 단지 기능적인 표현이며 어떠한 절대적 수치를 포함하지 않으며 어떤 기후에도 적용된다. 패시브하우스 용어의 선택은 임의적으로 지어진 것이 아니라 건물의 계획과 사용에 있어서 최대한 간접적인 수단으로 열적 쾌적함이 이뤄 질수 있도록 노력하는 것이며, 직접적인 수단은 최소화 시키는데서 이루어진 것이다. 직접적인 수단은 단지 꼭 필요한 것과 필요한 곳에 한정해 최소화 시키는 것이 궁극적인 목적이다. 이러한 패시브하우스 도입은 온실가스 감축, 고유가 등 환경변화에 대응하기 위한 것으로 디자인에서부터 자재사용까지 전 과정에 걸쳐 이뤄지고 있다. 본지는 국내에 적용 중이거나 적용할 예정인 패시브하우스에 대해 알아본다.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1997.05a
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• pp.80-86
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• 1997

꿀벌 및 봉산물 수입에 대응하여 국내 양봉산업의 안정적 발전을 도모하기 위해서는 현실적으로 실내 월동기술의 확립과 봉군월동관리기술의 생력화가 필요하다. 지역의 기후조건 및 봉군관리 실정에 맞는 효율적인 월동기술을 확립하므로서 월동기간중 봉군의 폐사율을 현재 추정되는 20% 수준에서 10%이하가 되도록 줄이고 월동능력을 향상시킬 필요가 있다. (중략)

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2002.04a
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• pp.165-166
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• 2002

대기 에어로졸은 대도시 스모그, 대기오염물질의 장거리 이동, 황사, 지구기후 변화 등의 문제와 직접적으로 관련되며, 이러한 현상을 정확히 규명하기 위해서는 대기 에어로졸의 입경분포나 수 농도와 같은 에어고졸에 대한 상세한 정보가 필요하다. 한국과학기술연구원 지구환경연구센터에서는 대기를 사용하여 스모그 현상을 연구할 수 있는 실내 스모그 챔버를 보유하고 있다. (배귀남 등, 2001). 대기 중에 포함된 에어로졸 및 가스상 물질의 특성은 시간 및 공간에 따라 달라진다. (중략)

• Archives of design research
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• v.17 no.2
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• pp.261-268
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• 2004

The Colonial House is one of the most popular styles in America. The purpose of this study is to closely examine this style based on interior features classified by patterns and elements during America's colonial period. Results of this study show that the interior style of the Colonial House was, at first, similar to Europe style. It was then integrated into the Georgian style of England and affected by Palladio as time passed. The interior style of the American Colonial House was based on rationality and practicality in concern with American weather and regions rather than imitation. The side of the roof was clapboard and the windows arranged with symmetry and rules around the entrance hall. It was generally Palladian style and was decorated with classical details. Timber frame of the interior was based on log cabins that appeared early in the American immigration. Furniture styles such as Jacobian, Queen Ann and Chippendale were matched with unique wood-oriented details and folkways like Chest, Rush Chair and Windsor Chair The house was also decorated with pictures, mirrors and ornaments, etc.

• Journal of Korean Tunnelling and Underground Space Association
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• v.22 no.1
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• pp.121-133
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• 2020

Globally, the frequency and intensity of abnormal climate events are increasing. Since this can directly damage lives and property, it is important to establish and implement an appropriate maintenance strategy in response to abnormal weather. Facilities built in cold regions where cold wave or heavy snow occurs frequently can be more damaged by freeze-thaw than facilities located in other regions. However, there are no clear criteria for quantitatively identifying the damage of freeze-thaw and how to cope with it. Therefore, based on the results of indoor freezing tests, the freezing conditions considering regional climate characteristics were selected as one day at -14℃, two days at -7℃ or three days at -5℃. As a result, it was confirmed that they were in the freeze-thaw environment in order of Daegwallyeing (8.3 times), Cheorwon (5.3 times) and Taebeak (4.9 times) in Gangwon region. Through this study, the evaluation criteria of freeze-thaw of road tunnels were newly proposed. The freeze-thaw evaluation criteria of the road tunnel presented in this study can be used for the quantitative evaluation and maintenance strategy of tunnels in cold regions.

• Korean Institute of Interior Design Journal
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• v.22 no.6
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• pp.3-10
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• 2013

This study intends to clarify the key elements of designing low energy residential building construction by planning out residential construction in nature oriented designing method utilizing nearby environment and nature oriented energy from designing stage instead of construction of low energy residential building. Development of building technology is proportional to the development of technology that lasts already. However, what is no less important than the advancement of technology, it is the study of fundamental phenomena energy use in response to climate, reduction, such as recycling. It is possible in such a purpose, it is assumed that there is a need to study elements implementation plan in accordance with the climatic characteristics of the study. Method for controlling the condition solar radiation, sunshine, depending on the characteristics of the weather, by utilizing the convection phenomenon of nature, to maintain the air comfort in the interior space is the essence of eco-friendly construction and passive Property This is an important architectural elements to be aim. For through the analysis of this case, corresponding to the phenomenon of the features of the macro climate and micro climate due to climate change, a combination building blocks of classification placement of each, shape, structure, elevation, space, of the material appeared in various it was possible to know the construction characteristics were. As shown in each case, construction method to address climate change has been found to apply to a comprehensive analysis climatic characteristics of each region, in response to this, the construction of element each corresponding.

• Journal of the Korean Society of Marine Environment & Safety
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• v.19 no.6
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• pp.643-648
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• 2013

In this paper, we developed a system which can detect and can alarm about the sailing provocative climate by using a photo. The research on domestic shipbuilding industry and in IT fusion technology is under construction, but a reliable safety device which can alarm a sailor about the circumstances of the fog and rain during ship operation as soon as possible due to the constant state in domestic. In this paper, a compact, for system low-power transceiver and data processing equipment for sensing were developed, also a performance evaluation got accomplished with simulation analysis. In results, it is operating normally at least 32.36[dB] and maximum values f 89.20[dB] in the domestic, and 32.55 to 60.66[dB] in the outdoors.