• 제목/요약/키워드: Fusion Research

검색결과 2,597건 처리시간 0.05초

Hydrogen Production by the Photocatalystic Effects in the Microwave Water Plasma

  • Jang, Soo-Ouk;Kim, Dae-Woon;Koo, Min;Yoo, Hyun-Jong;Lee, Bong-Ju;Kwon, Seung-Ku;Jung, Yong-Ho
    • 한국진공학회:학술대회논문집
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    • 한국진공학회 2009년도 제38회 동계학술대회 초록집
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    • pp.284-284
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    • 2010
  • Currently, hydrogen has been produced by Steam Reforming or partial oxidation reforming processes mainly from oil, coal, and natural gas and results in the production of $CO_2$. However, these are influenced greatly on the green house effect of the earth. so it is important to find the new way to produce hydrogen utilizing water without producing any environmentally harmful by-products. In our research, we use microwave water plasma and photocatalyst to improve dissociation rate of water. At low pressure plasma, electron have high energy but density is low, so temperature of reactor is low. This may cause of recombination in the generated hydrogen and oxygen from splitting water. If it want to high dissociation rate of water, it is necessary to control of recombination of the hydrogen and oxygen using photocatalyst. We utilize the photocatalytic material($TiO_2$, ZnO) coated plasma reactor to use UV in the plasma. The quantity of hydrogen generated was measured by a Residual Gas Analyzer.

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현대 여성 데님패션의 코디네이션에 나타난 퓨전 현상 (Fusion Phenomenon in Contemporary Women's Denim Coordinated Fashion)

  • 조아라;박명자;이연희
    • 한국의상디자인학회지
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    • 제13권2호
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    • pp.133-146
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    • 2011
  • The purpose of this study is to analyze the fusion phenomenon that appears in contemporary women's denim fashion in order to find a way to come up with a creative denim design. The methodology of this study is to research documents related to fusion phenomena and consider precedent studies to establish a criteria for analyzing fusion phenomena. The results are as follows: First, fusion phenomena in modern women's denim can be categorized into fusion of time, fusion of space, fusion of gender, fusion of culture, and fusion of genre. Fusion of time appears as fusion with the past and fusion with the future. Fusion of space appears as fusion with Asia and fusion with other regions. Fusion of gender appears as unisex, androgynous, and genderless. Fusion of culture appears as fusion with subcultures such as grunge, kidult, lingerie, hippy look, hip hop fashion, etc. Finally, fusion of genre appears as fusion of materials, fusion of style, and fusion of circumstances. Second, when analyzing the frequency of appearance for fusion phenomena, fusion of culture appeared with a frequency of 29.7%, followed by fusion of genre with 19.1%, fusion of time with 10.5%, fusion of gender with 9.9%, and fusion of space with 8.5%. When analyzing the most frequently appearing fusion phenomena by year, fusion of culture appeared the most from the year 2000 to 2004, fusion of space and time in 2005, fusion of genre from 2006 to 2007, fusion of culture again in 2008 and 2009, and once more fusion of genre appeared the most in 2010.

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한양대학교 간이차단 합성시험설비구축 (HY Simplified Synthetic Test Facility)

  • 장용무;황률;김철호;이방욱;구자윤
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2009년도 추계학술대회 논문집
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    • pp.220-220
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    • 2009
  • We are developing of the evaluation technique and system for testing the performance of circuit breaker using Simplified Synthetic circuit. This facility specification is up to 90[kApeak] and up to 300[kVpeak]. It is possible to verify the interrupting capability by using low-energy and reduce the development period and the cost.

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물표면 방전을 이용한 클로로포름의 분해 (Chloroform Degradation by Water-surface Discharge)

  • 유승민;유승열;박준석;홍은정;노태협
    • 한국물환경학회지
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    • 제29권5호
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    • pp.666-673
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    • 2013
  • Chloroform is harmful volatile organics and representatives of Trihalomethane (THM). Well-known removal methods of Chloroform are photo oxidation or OH radical oxidation. Plasma on water surface at slightly vacuum condition (45 torr) can produce OH radical and it will help chloroform removal. 81.5% of chloroform is removed by vacuum and plasma in 10 min.. Plasma can totally oxidize it till 2.8% and partially oxidize chloroform up to 18.5%. Water-surface plasma is good method to remove chloroform in short time.

Hyper Neutral Beam System for Damage Free Deposition of Indium-Tin Oxide Thin Films at Room Temperature

  • Yoo, Suk-Jae;Kim, Dae-Chul;Kim, Jong-Sik;Oh, Kyoung-Suk;Lee, Bong-Ju;Choi, Soung-Woong;Park, Young-Chun;Jang, Jin-Nyoung;Hong, Mun-Pyo
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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    • pp.190-192
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    • 2007
  • A neutral beam system has been developed to produce hyperthermal neutral beams composed of indium, tin, and oxygen atoms. Using these hyper thermal neutral beams with energies in the range of tens of eV, high quality indium-tin oxide (ITO) thin films have been obtained on glass substrates at room temperature. The optical transmittance of the films is higher than 85% at a wavelength of 550 nm and the electrical resistivity is lower than $1{\times}10^{-3}{\Omega}cm$.

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ITER CS 초전도 코일 전원장치 시험 결과에 대한 고찰 (Study on the test results of ITER CS superconducting magnet power supply)

  • 송인호;최정완;서재학;오종석
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2019년도 추계학술대회
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    • pp.130-131
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    • 2019
  • 국제 핵융합실험로(ITER)를 위해 한국이 제작, 시험, 설치 및 시운전을 하기로 되어 있는 CS(Central Solenoid) 초전도 자석용 전원장치의 시험 및 그 결과에 관하여 논의하고자 한다. 토카막 운전에서 플라즈마 발생 및 제어를 위한 대전류, 고전압, 270 kA 단락 용량 및 4상한 운전 특성을 갖는 45 kA/1050 V의 12펄스 싸이리스터 AC/DC 컨버터 및 제어기를 제작완료하였으며, ITER 부지로 운송하기 전에 공장의 전원 및 부하용량을 고려하여 시험절차서를 개발하였으며, 공장시험(FAT, Factory Acceptance Test)를 진행하였다.

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