• 제목/요약/키워드: Gel Layer

검색결과 631건 처리시간 0.054초

알루미늄 판막과 유리섬유를 합지한 구리방근시트와 폐타이어 용융액상 도막방수재를 이용한 옥상녹화 복합방수공법 (Compound waterproofing method of green roof using copper barrier sheet and recycled tire melting liquid waterproofing material that reinforced treatments are valve and glass fiber mesh.)

  • 김영찬;조일규;최성민;김영찬
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2008년도 추계 학술논문 발표대회
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    • pp.173-178
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    • 2008
  • This is green roof bottom system which composed by aluminum valve and glass fiber together as major reinforcement, so the cooper sheet can have root proof, and using recycled tire gel-type membrane waterproofing system which dost not contains VOCs. The copper sheet reduce the plants' root growing, so it helpes to maintain the waterproofing layer and stability of root proofing. Gel type membrane waterproofing system can do waterproofing, stress dispersion, and reducing leakage expansion. So those two materials can help each other to make green roof bottom layer would have the stability and durability.

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결정의존성 식각/기판접합을 이용한 MEMS용 구조물의 제작 (Si Micromachining for MEMS-lR Sensor Application)

  • 박흥우;주병권;박윤권;박정호;김철주;염상섭;서상의;오명환
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 1998년도 춘계학술대회 논문집
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    • pp.411-414
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    • 1998
  • In this paper, the silicon-nitride membrane structure for IR sensor was fabricated through the etching and the direct bonding. The PT layer as a IR detection layer was deposited on the membrane and its characteristics were measured. The attack of PT layer during the etching of silicon wafer as well as the thermal isolation of the IR detection layer can be solved through the method of bonding/etching of silicon wafer. Because the PT layer of c-axial orientation rained thermal polarization without polling, the more integration capability can be achieved. The surface roughness of the membrane was measured by AFM, the micro voids and the non-contacted area were inspected by IR detector, and the bonding interface was observed by SEM. The polarization characteristics and the dielectric characteristics of the PT layer were measured, too.

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Ink-Jet Printed Oxide Semiconductor Transistors

  • Jeong, Young-Min;Kim, Dong-Jo;Moon, Joo-Ho
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.806-808
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    • 2008
  • We studied ink-jet printing for selective deposition of soluble oxide semiconductor to fabricate transistor. Sol-gel derived ZTO solution was synthesized for ink-jet printable solution. Transistors were produced by printing oxide layer between ITO electrodes. We demonstrated that ink-jet printed ZTO transistors work well and surface treatment significantly influences device performance.

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솔젤법에 의한 coated conductor용 산화물 완충층의 성장 (A Sol-Gel Growth of Oxide Buffer Layer for Coated Conductor)

  • 김영국;유재무;고재웅;허순영
    • 한국초전도저온공학회:학술대회논문집
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    • 한국초전도저온공학회 2003년도 학술대회 논문집
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    • pp.98-100
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    • 2003
  • PbTiO$_3$ films applicable to buffer layers for YBCO coated conductor have been successfully fabricated by sol-gel process. Crystallinity of grown films are heavily dependent on processing parameters such as annealing atmosphere and number of dipping. (100) oreinted PbTiO$_3$ films grown on (200) oriented Ni substrates exhibit uniform surface with small grain size(200~300nm).

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용존산소농도와 pH의 동시 검출용 이중층 광학 센서막의 특성 및 발효공정의 온라인 모니터링에의 응용 (Characterization of Double-layer Optical Sensing Membranes for Dual Sensing of Dissolved Oxygen Concentrations and pH and Their Application to the On-line Monitoring of Fermentation Processes)

  • 김춘광;이종일
    • 공업화학
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    • 제20권4호
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    • pp.370-374
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    • 2009
  • 용존산소농도(DO)와 pH를 동시에 검출하기 위하여 이중층 광학 센서 막을 제조하였다. DO 민감성 염료인 Rudpp를 MTMS 졸-겔에 혼합하고 24-웰 마이크로타이터 플레이트에 코팅하였다. DO-검출층 위에 HPTS와 혼합된 GA 졸-겔용액을 코팅하고 pH 측정을 위해 사용하였다. 이중층 광학 센서 막은 온도와 이온 강도에 영향을 받았다. 또한 DO와 pH 이중층 광학 센서 막은 미생물발효공정에 온라인 모니터링 하는데 응용하였으며 좋은 성능을 보였다.

Ce0.8Sm0.2O2 Sol-gel Modification on La0.8Sr0.2Mn0.8Cu0.2O3 Cathode for Intermediate Temperature Solid Oxide Fuel Cell

  • Lee, Seung Jin;Kang, Choon-Hyoung;Chung, Chang-Bock;Yun, Jeong Woo
    • 마이크로전자및패키징학회지
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    • 제22권4호
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    • pp.77-82
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    • 2015
  • To increase the performance of solid oxide fuel cell operating at intermediate temperature ($600^{\circ}C{\sim}800^{\circ}C$), $Sm_{0.2}Ce_{0.8}O_2$ (SDC) thin layer was applied to the $La_{0.8}Sr_{0.2}Mn_{0.8}Cu_{0.2}O_3$ (LSMCu) cathode by sol-gel coating method. The SDC was employed as a diffusion barrier layer on the yttria-stabilized zirconia(YSZ) to prevent the interlayer by-product formation of $SrZrO_3$ or $La_2Zr_2O_7$. The by-products were hardly formed at the electrolyte-cathode interlayer resulting to reduce the cathode polarization resistance. Moreover, SDC thin film was coated on the cathode pore wall surface to extend the triple phase boundary (TPB) area.

양파 추출물에서의 글루타티온 전달효소 활성 저해제에 관한 연구 (A Study of Glutathione S-transferase Inhibitors obtained from Allium cepa var. cepa Extract)

  • 이광수;박경숙
    • 한국식품영양학회지
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    • 제26권4호
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    • pp.725-730
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    • 2013
  • In this study, an ethanol extract being obtained from Allium cepa var. cepa examins the inhibitory effects on the glutathione S-transferase and the separation had been done by silica-gel column chromatography using various eluents, such as ethyl acetate, methanol, and 50% methanol. A volume of column fraction was 50ml and evaporation has been performde by the rotary evaporator under reduced pressure. Each fraction is being examined by thin layer chromatography and the UV spectrum at 365 nm was used to investigate separation patterns of spots on thin layer chromatography. When the eluent was changed, the spot patterns showed another different pattern on thin layer chromatography, so on. Fractions showing similar pattern are combined and eventually, three fractions are obtained. Each fraction is testified to examine the inhibition effects on glutathione S-transferase. All of these showed inhibition effects on glutathione S-transferase. The GC-MS shows that each fraction contains more than 2 compounds.