• Title/Summary/Keyword: 창문

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우리 문화유산속의 과학(6) - 한지, 천년세월 견뎌내는 '살아있는 종이'

  • Lee, Jong-Ho
    • The Science & Technology
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    • v.35 no.7 s.398
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    • pp.38-39
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    • 2002
  • 우리나라의 한지는 세계에서 가장 우수한 종이요 천년 세월을 견뎌내는 것은 물론 썩지도 않는다. 2~7세기 사이에 전래된 것으로 추측되는 우리의 한지는 닥나무를 재료로 하고 있는데 창문용으로 사용되는 창호지는 바람과 빛을 통과시키고 습도까지 조절하는 기능까지 갖추고 있어 '살아있는 종이'라고도 한다.

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전기냉방기 품질비교테스트

  • 한국전기제품안전진흥회
    • Product Safety
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    • s.24
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    • pp.20-25
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    • 1994
  • 공업진흥청은 무더위가 시작되면서 수요가 점차 늘고 있는 전기냉방기의 품질수준을 알아보기 위하여 국내외제품에 대한 품질비교평가를 실시하고 그 결과를 발표하였다. 전기냉방기는 '89년 이전까지만 해도 창문형룸에어컨이 주종을 이루었으나 요즈음은 가정의 주생활 공간이 안방에서 거실로 옮겨짐에 따라 값이 비싸더라도 소음이 적고 맵시가 뛰어난 거실용팩케이지형 전기냉방기를 많이 찾고 있는 실정이다. 이번에 비교평가한 제품은 팩케이지형중 일반가정에서 가장 선호하는 1

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Dynamics of Environmental Policy Development in Korea : How did the Policy Windows have been opened? (한국 환경정책의 발달동인 : 정책의 창문은 어떻게 열렸는가?)

  • Rhee, Jeong-Jeon;Jeong, Hoi-Seong
    • Journal of Environmental Policy
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    • v.2 no.1
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    • pp.1-29
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    • 2003
  • This paper examines the dynamics of environmental policy development in Korea by reviewing some of the ways on how the policy windows have been opened. There are a lot of theoretical arguments about the major factors influencing policy development or changes. Many scholars have believed that severe pollution accidents or salient environmental episodes might have been the main motivation of environmental policy development. This line of argument seems valid, especially with the water pollution control policy in Korea. Water pollution control programs had rapidly expanded along with the series of water pollution accidents in the tap water sources from the late 1980s to mid-1990s. However, regarding other major env. issues, various other factors have played more important roles in the development of the relevant policies. In case of air pollution control policy international sport events such as, 1986 Asian Games, 1988 Summer Olympics, and 2002 World Cup Competition, have contributed for the development. The municipal solid waste management policy partly owed its development to the introduction of local autonomy system in the mid-1990s. Even the foreign currency crisis occurring in December 1997 helped the policy paradigm shift from rigid supply-oriented to soft demand-oriented approaches. After closely looking at the dynamics of environmental policy development in Korea, this paper tries to identify the logical background of the observed outcomes.

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Analysis of Window Transmittance Using Horizontal Blind by RADIANCE Program (RADIANCE 프로그램에 의한 창문 블라인드의 투과율 분석 연구)

  • 정근영;최안섭
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.17 no.6
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    • pp.7-15
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    • 2003
  • The purpose of this simulation study is to determine the window transmittance by RADIANCE lighting simulation tool where the horizontal blind is installed. Parameters such as sky types, seasonal changes, altitude, azimuth, and horizontal blind angle at a 0$^{\circ}$, 45$^{\circ}$, 90$^{\circ}$ were considered. The simulation results present that measured directional transmittances have different values according to each directional property of the horizontal blind. In addition, methodology was described to apply window transmittance data to DayDim program which is a lighting calculation and analysis tool especially for the performance of daylight responsive dimming systems.

Study on Thermal Comfort in according to Rate of Opening Windows of Flat-type Apartment (판상형 아파트의 창문개폐율에 따른 열쾌적도 분석)

  • Kim, Sung Gil
    • KIEAE Journal
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    • v.13 no.6
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    • pp.93-98
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    • 2013
  • The purpose of this study is to analyze the rate of opening windows that makes residents of a flat-type apartment feel pleasant in summer time. A few conditions were simulated on the wind flow that pass through internal and external spaces of the flat-type apartment, utilizing CFX program. The simulation was made with the criteria for the rates of opening window at 20%, 50%, 70% and 100%. When the rate of window opening was more 50%, the wind speed(more than 1m/s) that makes the residents feel pleasant was observed in more 60% of the internal space. When the all windows of the apartments were opened, the heat island phenomenon was almost disappeared and the pleasant wind flow was more evenly distributed in the external spaces. If residents of apartments recognize the result of this study and practice in agrement on opening windows in summer, it is expected to contribute to minimizing the energy consumption for air conditioning.

Experimental Research of Window Air Tightness and Opening Force with Respect to Mohair Number, Clearance and Shortened Length (모헤어 개수, 틈새 길이 및 축소된 길이의 창문 기밀성 및 개폐력에 대한 실험적 연구)

  • Kim, Seung Jae;Park, Jong Jun;Kim, Young Il
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.30 no.4
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    • pp.195-203
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    • 2018
  • Mohair is widely used as an airtight material for filling the gap between a window frame and sash. The purpose of this study is to investigate infiltration rate and opening force of sliding windows according to the mohair installation conditions. Infiltration experimental apparatus was set up, and the experimental results were applied to windows to find a correlation between infiltration rates and opening forces. When 4 rows of mohair were installed, the infiltration rate increase became 27.1% per clearance length increase of 1 mm, and the infiltration rate decrease became 5.7% per shortened length increase of 0.1 mm. For 4 rows of mohair, the opening force decreased by 28.2% as the clearance increased by 1 mm, and it increased by 9.3% as the shortened length increased by 0.1 mm.

Development of an Inert Gas Water Mist System -A Numerical Study on Ventilation of the Fire Test Room- (불활성가스 미분무소화설비의 개발 -화재시험실의 급기에 관한 수치연구-)

  • Park, Woe-Chul;Jeong, Lee-Gyu
    • Journal of the Korean Institute of Gas
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    • v.12 no.1
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    • pp.25-30
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    • 2008
  • A Numerical study was carried out for a propane gas pool fire in the fire test room of $2.5m{\times}2.0m{\times}2.5m$ for testing a inert gas water mist system, to investigate a possible under-ventilation in the fire test room. For the fire sizes of 60 kW and 120 kW, changes in the temperature and CO concentration with and without a window were investigated. It was confirmed that the influence of the window on the distributions of temperature and CO concentration was small in the two fire sizes, and hence the under-ventilation was not occurred in the room.

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Aesthetics and Meaning of Split Screen: Focusing on Feature Film (화면 분할의 미학과 의미 - 극영화를 중심으로)

  • Chang, Woo-Jin
    • The Journal of the Korea Contents Association
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    • v.12 no.1
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    • pp.154-165
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    • 2012
  • In this paper, I examine the history of split screens, primarily seek to explain types of them, and explore the narrative meaning of each type in feature films. In short, I try to categorize the types of split screens and present a figure of them according to events and characters, focusing the relations between/among simultaneous images and narrative meanings. In addition, I assert that split screen have altered some methods of filmic storytelling and the ontology of screen. Story lines no longer have to be linear and the screen need not to remain a window through which we can see another world. The screen has come to be a canvas upon which several images can be arranged for narrative purposes.

The Present State of Noise Pollution and It's Diminution Counterplan (소음의 현황과 대책방향)

  • 정일록
    • Journal of the Korean Professional Engineers Association
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    • v.25 no.1
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    • pp.11-14
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    • 1992
  • 얼마전까지만 해도 우리나라는 조용한 아침의 나라, 동방예의지국이라 예찬되어 왔으며, 아름다운 산하는 금수강산이라 불리어져 왔다. 비록 창호지 한장으로 바른 창문이었지만 소음공해같은 것은 결코 느끼지 않고 살았으며, 창호지를 통하여 전달되는 첫새벽의 닭우는 소리는 소음이라기 보다는 장부의 단잠을 깨워주는 자연음으로서의 낭만이 있었다. 그러나, 이젠 사정이 크게 달라졌다. 지난 40년 동안에 우리나라 경제가 고도성장을 이룩함으로써 우선 국민생활은 풍요로와 겼으나 대소 공장과 사업장 및 교통혼잡으로부터 The아져 나온 각종 오염물질이 엄청나게 증가하여 호흡하는 공기와 마시는 물, 곡물이 자양되는 토양은 병들어 가고 있을 뿐만 아니라 옛날에는 생각지도 못했던 온갖 소음ㆍ진통으로 우리는 포장되어 살아가고 있다 해도 과언이 아니다. $\ulcorner$소음진동규제법$\lrcorner$에 소음이란 기계ㆍ기구ㆍ시설 기타 물체의 사용으로 인하여 발생한 강한 소리라 정의하고 있다. 말할 것도 없이 이는 인위적으로 발생되는 시끄러운 소리를 의미하며, 이러한 소음을 다소나마 피하기 위해 창문을 알루미늄샤시 유리창으로 바꾸어 커텐을 치고, 출입문을 두중한 원목 도어로 교체 해도 다양해지고 강해진 소음공해를 막기는 어려운 세상이 되 었다. 이로 인하여 우리는 생활의 안정을 위협 받게 되었으며, 학업과 생업에 크고 작은 장해를 받으며 살아가고 있는 것이 오늘의 현실이다. 정부ㆍ기업ㆍ국민 각자가 쾌적한 환경을 보전하고자 하는 확고한 의지와 배경이 없다면 후손들에게도 대물림 될 것임에 틀림없으며, 특히 이러한 현상은 도회지에서 더욱 심화될 것임은 명약관화하다 하겠다.

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