• Title/Summary/Keyword: 조창한

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회원작품

  • Korea Institute of Registered Architects
    • Korean Architects
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    • no.2 s.40
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    • pp.49-65
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    • 1972
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이달의 작품

  • Korea Institute of Registered Architects
    • Korean Architects
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    • v.5 no.3 s.19
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    • pp.27-41
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    • 1970
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회원작품

  • Korea Institute of Registered Architects
    • Korean Architects
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    • no.3 s.31
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    • pp.39-60
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    • 1971
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건축가 없이 세워진 건축물3

  • Korea Institute of Registered Architects
    • Korean Architects
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    • no.9 s.47
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    • pp.20-25
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    • 1972
  • -편집주- ㆍ이사진들(ARCHITECTURE WITHOUT ARCHITECTS)은 1964년 11월 9일부터 1965년 2월 7일까지 약 4개월간에 걸쳐서 미국의 현대미술관에서 전시된 작품들로서 이 전시회는 현대미술관의 국제부의 협찬하에서 건축가 B. Rudofsky가 연구, 제작, 편집, 전시 및 디자인까지 도맡아 완성한 것이며, ㆍ이 비형식적이라 할 수 있는 건축물의 전시를 함에 있어서는 죤ㆍ시몬ㆍ구겐하임재단과 포드재단의 재정적인 지원을 받아서 이 계획의 연구를 이룰 수 있었으며 또한 건축가 Walter Gropius, Pietro Belluschi, Jose' Luis Sert, Richard Neutra, Gio Ponti, Kenzo Tange 등의 열광적인 협조와 추천으로서 이들 작품의 전시가 가능했다고 한다. ㆍ본 자료를 제공해주신 조창한 선생님에게 감사를 드립니다.

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Study of Developing Simulation Package for Cleaner Production Assessment : Case Study for ECH Process (청정생산평가를 위한 모사기 개발에 관한 연구 : ECH 생산공정 사례 적용)

  • Park, Young Cheol;Chang, Wook;Bak, Sin-Jeong;Wong, Won Hi;Lee, Tai-Yong;Kim, Young Sub;Yun, Chang Han;Cho, Byong Nam;Kim, Yeon Seok
    • Clean Technology
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    • v.9 no.1
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    • pp.1-8
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    • 2003
  • In order to implement clean technology to Petro-chemical process, simulation package of given process should exist. In this paper, reaction and recycling parts of a process are explained using EA process and MEK process respectively so as to explain how to make simulation package. Based on simulation package, several options are generated and feasibility tests are performed.

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Enzymatic Activity and Distribution of Marker Enzymes between Human Milk and Bovine Milk with Their Separated Milk Fractions (인유 및 우유의 획분에 존재하는 표지효소들의 효소활성과 분포)

  • 조진국;무전안홍;김천제;김창한
    • Food Science of Animal Resources
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    • v.18 no.2
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    • pp.185-191
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    • 1998
  • Human milk and bovine milk in normal stage were fractionated four parts : whey, skimmilk membrane, and casein pellet. The specific activity (nmole / mim / mg protein) and distribution ratio(%) of suborganella marker enzymes in each separated milk fraction were determined. Especially, neutral $Ca^{2+}$-ATPase, acid $Ca^{2+}$-ATPase, NADH-cytochrome C reductase, and acid phosphatase were higher in human milk. However, both $Ca^{2+}$-ATPases were not detected in all fractions of bovine milk. On the other hand, 5'-nucleotidase, phosphodiesterase I, alkaline phosphatase, and $\gamma$-glutamyl transpeptidase activities in bovine milk were higher than in human milk. Most of the marker enzymes were highly distributed in cream fraction of either human milk or bovine milk, and their specific activities were high to 24 fold from 3 fold when compared with that of whole milk. These results suggest that marker enzymes in mammary epitherial cell are transfered into cream fraction by the membrane rearrangement, and different biochemical reaction between human and bovine exists for milk secretion in mammary gland.

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Studies on Livestock Pollution Treatment and Energy Production (축산공해의 해결방안과 에너지 생산에 관한 연구)

  • 김창한;윤여창;최재용
    • Microbiology and Biotechnology Letters
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    • v.9 no.4
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    • pp.219-223
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    • 1981
  • Experiments on methane gas digestion were conducted to prevent livestock pollution and develop substitute energy. When about 30(w/w)% of sludge was added to cow feces, pig feces, and poultry feces and digested at 37$^{\circ}C$ for 20 days, methane gas produced per Kg of organic matter for cow feces, pig feces, poultry feces was 131, 248 and 235 l, respectively. pH decreased slightly at first but increased gradually afterwards during digestion period. When 20, 30, and 40(w/w)% of sludge were added to the mixture of cow feces (300g) and water (200g), the volumes of gas produced were 6.1, 14.5 and 13.4 l, respectively. Volume of methane gas produced from the mixture of cow feces and saw dust was much more than that from the mixture of cow feces and rice polishings. The contents of N, K, P for digestion residues were sufficient to be utilized as a fertilizer. When methane gas digestion was carried out with cow feces in a submersible pump digester the volume of methane gas produced per Kg of organic matter was 188 l. The price of total methane gas produced at this digestion was similar to that of the electric power consumed.

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A Study on the Hypochlorination Reaction for Improvement of Epichlorohlydrin Production Process : Reduction of Side Reacion (ECH 생산공정 개선을 위한 Hypochlorination 반응에 관한 연구 : 부반응 억제)

  • Lee, Chul Haeng;Jeon, Sang Jun;Lee, Tai-yong;Wong, Won Hi;Yun, Chang Han;Kim, Young Sub;Cho, Byong Nam;Kim, Yeon Seok
    • Clean Technology
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    • v.9 no.1
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    • pp.29-35
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    • 2003
  • The methods for improving epichlorohydrin process was investigated by carrying out experiments on hypochlorination reaction, from which dichlorohydrin is produced by reacting with allyl chloride and chlorine. As the recycle water from PVC plant was used instead of industrial water for reaction, the effect of recycle water on the reaction yield was studied. It was shown from this experiment that the recycle water rarely affected on the ratio between products. TCPA, which was almost of byproducts, could be removed before purification process using "extractant A". This could prevent additional side reaction by TCPA and reduced energy to separate it in purification part. The change of product yield was observed as the chlorine gas addition decreases which reacted with allyl chloride. It seems that the yield of major products didn't change almost, but the byproducts showed rather reduced trend with decreasing chlorine gas.

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