• Title/Summary/Keyword: Microclimate

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An Observation Study of the Relationship of between the Urban and Architectural Form and Microclimate (도시·건축형태와 미기후의 관계에 대한 관찰 연구)

  • Lee, Gunwon;Jeong, Yunnam
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.8 no.11
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    • pp.109-119
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    • 2018
  • This study investigates the effect of urban and architectural forms on the microclimate in urban areas. It applies urban and architectural elements such as urban form and tissue and building form and characteristics as the main influences on the microclimate within urban area. Among the 23 Automated Weather Stations (AWS) installed within Seoul city by the Korea Meteorological Administration, 6 sites were selected for the analysis, based on their different urban and architectural characteristics, and actual measurements were conducted in August 2017 using individual AWS equipment. Also, the measurements of microclimate and urban and architectural elements within a 500m radius of the AWS measurement points were collected and analyzed. The result of the analysis shows that the microclimate elements, such as wind speed, solar radiation, and temperature, were affected by the direction of the streets, the width, depth, and height of the buildings, the topographic elevation and direction and the traffic volume. This study is expected to contribute to mitigating urban heat island effect and setting the foundation for sustainable cities through development of urban management methods and techniques including the relationship between built environment elements and microclimate.

Layering Effects on Clothing Microclimate, Clothing Insulation and Physiological Responses

  • Park, Joonhee;Yoo, Shinjung
    • International Journal of Human Ecology
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    • v.14 no.2
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    • pp.93-103
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    • 2013
  • This study investigated the relationship of clothing microclimate and physiological responses in order to examine the layering effects on the clothing microclimate as an index to predict clothing thermal insulation ($I_{cl}$). Experiments were conducted in a $15^{\circ}C$ environment on six physically active males. Increased clothing layers resulted in higher mean temperature inside the clothing ($\bar{T}_{cl}$) and $I_{cl}$. The $I_{cl}$ had a high correlation with: $\bar{T}_{cl}$ (r = 0.556), the difference between the innermost surface temperature and the outermost surface temperature at the chest (DST) (r = 0.549) and the temperature inside clothing at the abdomen (r = 0.478). $\bar{T}_{cl}$ had the highest correlation with the temperature inside clothing at the abdomen (r = 0.889). $\bar{T}_{cl}$ also had the highest correlation with $\bar{T}_{sk}$ (r = 0.860). The results showed that the relationship between $I_{cl}$ and $\bar{T}_{cl}$ was linear (p < .01). Thermal comfort had a negative correlation with $\bar{T}_{cl-thigh}$ (r=-0.411) and $\bar{T}_{cl}$ (r = -0.323) (p < .01.)

Evaluation of Clothing Comfort and Anti-atopy Properties by Human Wear Test -Focused to Inner Wear Natural Dyed with Bamboo Charcoal- (인체착용실험에 의한 쾌적성 및 항아토피 성능평가 - 대나무숯 천연염색의류를 중심으로 -)

  • Kim, Sung-Hee;Shin, Youn-Sook
    • Fashion & Textile Research Journal
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    • v.12 no.1
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    • pp.122-128
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    • 2010
  • This study examined several dyeing properties, physiological responses and comfort sensation of cotton knit underwear dyed with bamboo charcoal. The cotton knit underwear dyed with bamboo charcoal and treated with chitosan showed 99.9% antibacterial property and improved deodorization, and colorfastness. Eight children with atopic dermatitis worn underwear dyed with bamboo charcoal during 4 months. Their parents reported fewer itches of children. Wearing cotton knit underwear dyed with bamboo charcoal and non-dyed with bamboo charcoal respectively, these eight children rested for 20 minutes, then exercised for 10 minutes, and then rested for 30 minutes in the room maintained $28{\pm}1^{\circ}C$ and $50{\pm}5%R.H.$ Children's rectal temperature, skin temperature and microclimate inside garment of two types of cotton knit underwear were compared. As a result, the rectal temperature and skin temperature were higher when children were wearing underwear dyed with bamboo charcoal than non-dyed underwear. The microclimate temperature and microclimate humidity at the back of children were lower when children with underwear dyed with bamboo charcoal exercised and recovered.

A Study on the microclimate Improvement of an apartment complex using the Envi-Met model (Envi-Met 모델을 이용한 공동주택단지의 미기후 환경 개선방향에 관한 연구)

  • Kim, Jung-Kwon;Jung, Eung-Ho;Kim, Dae-Wuk;Ryu, Ji-Won;Cha, Jae-Gyu
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2008.04a
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    • pp.297-302
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    • 2008
  • Urbanization has caused population influx into cities, creating housing problems, and housing developmental plans have often resulted in high-rise and high-density housing complexes. Such development have seldom incorporated the environmental factors associated with the complexes and the surroundings, just being busy in increasing the volume of the housing supplies, and as a result, various environmental problems, such as disruption of the air flow, reduction of sunlight exposure amount, and temperature rise, have occurred, deteriorating the living environments. Accordingly, the objectives of this paper are to find out the causes of the problems in the contemporary complex development plans from the urban environmental viewpoint through the investigative analysis of microclimate environment in those complexes, and, further, to present a residential complex planning technique and developmental direction so as to remedy the problems described above. Then a 3-D microclimate model 'Envi-Met' was employed to analyze and predict on the related issues, per the selected planning factors.

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Clothing Microclimate and Subjective Sensation according to Wearing Hanbok of Korean and Japanese (한·일 양국인의 혼복 착의시 의복기후와 주관적 감각)

  • Sung, Su-Kwang;Kim, Myo-Hyang
    • Fashion & Textile Research Journal
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    • v.3 no.3
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    • pp.265-270
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    • 2001
  • Korea and Japan, neighboring two nations, have similar cultural background and complicated relations in terms of their culture and constitution. In this study, clothing microclimate and subjective sensation of Korean and Japanese subjects for Hanbok, traditional costumes of Korea, were assessed and investigated differences between them. The results of the study were as follows. For Hanbok, the temperature within clothing at the chest have significant correlations with the variables of race and elapsed time with p<0.001. At the thigh, correlations with elapsed time were significant (p<0.001). For the humidity within clothing at the chest of Hanbok, correlations with variables of race were significant (p<0.001). At the thigh, correlations with race and elapsed time were significant(p<0.001). For Hanbok, Korean group reported 'slightly warm' whereas Japanese group reported 'hot' in the thermal sensation. For the humid sensation, Korean group reported 'neutral' and Japanese group reported 'humid'. For the comfort sensation, Korean group reported 'slightly uncomfortable' and Japanese group reported 'uncomfortable'. Japanese group reported high relation with comfort sensation and humidity of microclimate.

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The Relation of between the Architectural and Urban Form, Microclimate Factors and Buildings Energy Consumption (도시, 건축형태 및 미기후로 인한 건축물군의 에너지 소비량의 관계)

  • Lee, Gunwon;Jeong, Yunnam;Moon, Yoon-Deok
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.10
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    • pp.923-934
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    • 2019
  • This study investigates correlations between the impacts of urban and building form and microclimate on the energy consumption of buildings. It applies microscopic elements such as urban form, building form and character, and microclimate as factors in the energy consumption of buildings. To this end, the energy consumption of selected buildings in Seoul in August of 2017 was analyzed. Based on microscopic elements within a radius of 500 meters of 23 Automated Weather Station (AWS) measurement points selected by the Meteorological Office of the City of Seoul. With the exception of a few elements, the urban form and character elements demonstrate a significant relation to the energy consumption of buildings. It is also found that microclimate elements such as wind speed and humidity are pertinent to the energy consumption of buildings. It is helpful in that it suggests results for establishing more effective policies and strategies for enhancing the sustainability and resilience of cities.

자연에너지와 건축조경계획

  • Jo, Gyun-Hyeong
    • Solar Energy
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    • v.13 no.2_3
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    • pp.22-29
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    • 1993
  • Indoor thermal environment and energy consumption of buildings are preferentially affected by the microclimate around buildings. It is the first method to improve energy conservation effect of buildings and the ways to utilize natural energy for the comfortable residential environment that the difference between the microclimate condition and the indoor thermal condition is made in minimum as far as possible. There are many factors to control and minimize the difference, but landscape element is the major one among the factors. In this respect, the report analyzes landscape elements and their function to control microclimate and presents basic data for the desirable landscape planning mehtods to improve energy conservation effect of buildings and to attain the comfortable residential environment.

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The Effectso f Textiles Materials and Wearing Type on the Thermal Insulation Value (의복의 소재 및 형태가 보온력에 미치는 영향)

  • 손원교;최정화
    • Journal of the Korean Society of Clothing and Textiles
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    • v.23 no.8
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    • pp.1098-1109
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    • 1999
  • This study was to examine the effects of textiles materials and wearing types on the thermal regulation responses of human, Cotton polyester wool silk and rayon were chosen as outerwears and acetate was selected as a lining. Blouse-skirt suits blouse-slacks suits and one-piece dress made of selected textiles were examined by human trials, Tests results were as follows ; 1 When subjects wore vlouse-slacks suits Tmsk was showed the highest value. There was a significant difference on Tmsk(p<0.05) when they wore one-piece dress. The temperature of microclimate inside clothing when subjects wore blouse-slacks suits showed the highest value and one-piece dress and then blouse-skirt suits in order. For blouse-skirt suits clothing without lining showed higher temperature of the back of microclimate inside clothing than clothing with lining except cotton(p<0.1) 2. There were no significant consistency of the increasing rates of thermal insulation of garment at fabric test and human trials among polyesterand silk.

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UV ray protective function and wear sensation of garment for plastichouse worker (비닐하우스용 작업복의 자외선 차단 성능과 착용감 연구)

  • 최정화;백윤정
    • Korean Journal of Rural Living Science
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    • v.6 no.1
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    • pp.25-30
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    • 1995
  • This study was designed to obtain the basic data developing the UV ray protective garments for the plastichouse workers. Two subjects were volunteered for 1hr. wear test in plastic house, and the ensembles was composed of one of three kinds blouse (UV blocking blouse, polyester/cotton 47/53 blouse, and polyester blouse), shorts, sleeveless undershirts, pants and socks. The measurements were rectal temperature, skin temperature, microclimate inside clothing, subjective sensation, and the colour difference of UV sensor. The results were as follows: 1. Microclimate especially, temperature inside clothing of polyester blouse was the highest among the garments. And UV-proof polyester blouse showed the lower mean skin temperature and microclimate than others. Showing the highest sweat volume. 2. No significant difference on UV ray blocking function among 3 kinds of garment was shown. 3. We could conform that in spring for the plastic house wぉw s garment low thermal insulating value and wide covering area were more important factors than UV blocking function of fabric.

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THE SIMPLE & EASY ENVIROMENTAL CONTROL FOR THE MEMBRANE GREENSHED OF VEGETABLES IN CHINA

  • Weicheng, Xia
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1993.10a
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    • pp.495-504
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    • 1993
  • In China, the membrane greensheds are chiefly for yielding vegetables, using simple & easy methods to control the microclimate. The yield of the vegetable is raised & the lack of variety of vegetable in the slack season is overcome. This paper presents the general planning , the environmental control and the reformed designs of such greenshed in China.

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