• Title/Summary/Keyword: 브라운관

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Study on the Surface Electric Resistance for Inner COnductive Film in CRT Funnel (브라운관 Funnel Glass 내면의 흑연피막의 표면전기저항에 관한 연구)

  • 김상문;김태옥;신학기
    • Journal of the Korean Ceramic Society
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    • v.35 no.11
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    • pp.1155-1161
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    • 1998
  • We have studyed the surface electric resistiance for inner conductive film consisted of graphite and iron oxide by coating the conductive paint on inner face of 28" wide CRT funnel and have evaluated the working properties of 28" wide CRT according to the surface electric resistiance. We found that the viscosity of paint and the thickness of conductive film became the higher but the surface electric resistiance of con-ductive films was the lower than before in accordance with the increase of solid contents in conductive paint and that the surface condition and the surface electric resistiance of conductive films changed highly ac-cording to the drying conditions also. From these results we could get the uniform thickness and the un-iform film resistance and the optimum working property of selectric propertise in CRT when we used the conductive paint with solid contents 28% and viscosity about 13cps.

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A Study on Application of FIR to the Braun tube and Lnfluence of Braun tube of FIR-radiation Type to a Living Organism(I) (원적외선의 브라운관에의 응용과 생체에 미치는 영향에 대한 연구(I))

  • 김헌수;박종환
    • The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.9 no.1
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    • pp.30-36
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    • 1995
  • Until now, simple shielding is the only way to prevent harmful electromagnetic: wave from TV and monitor. In this study, we adopted special ceramics to Braun tube for radiating FIR ray. In experiment on living organisms, there was some differences between general and ceramics treated Braun tube. The chrysanthemunm the drosophila and the tadpole which were in front of ceramics treated Braun tube showed longer living activity than those in front of general tube. As a result, it is proved that the ceramics treated Braun tube offers good effects to living organisms.

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브라운관의 Grack 및 Size감지 시스템

  • 조영기;차영식;엄보현;김광선
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1992.04a
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    • pp.153-156
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    • 1992
  • 디지탈 영상처리는 60년대 초부터 사용되어 왔으며 많은 양의 DATA를 처리해야 한다는 점과 일반적으로 적용될 수 있도록 충분히 빠르고 안정된 Algorithm이 요구된다는 점에서 상당히 느리게 발전되어 왔으며, 70년대에 들어서 Computer Vision이라는 학문이 상당한 연구과제로 부각되어 2 Dimension의 해석 및 인식을 위한 Algorithm들이 각종 자료를 통하여 발표되었고 80년대에 들어서부터 3 Dimension의 인식을 위한 Algorithme들이 연구과제로 진행되고 있다. 본 프로잭트는 그동안 국내에서 어려웠던 브라운관의 Crack 및 Size 감지의 경우 99.8%의 자동감지 효과를 구현하였다.

기술개발성공사례 - 성휘산업(주)

  • Korean Federation of Science and Technology Societies
    • The Science & Technology
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    • v.29 no.4 s.323
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    • pp.87-88
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    • 1996
  • TV나 컴퓨터 브라운관에 들어가는 전자총의 부품인 Stem pin을 자체 개발해 전량 수입에 의존하던 것을 국산으로 대체하는데 성공한 성휘산업(주). 하루 4천만개의 스템핀을 생산해 올해 매출 50억원을 목표로 뛰고 있는 성휘산업은 국내 브라운관 제작 3사인 삼성전자, LG전자, 오리온전기에 전량 납품하고 있으며 일본 히다치와 소니 등에도 판로를 개척해 역수출을 계획하고 있다.

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Synthesis of Na-A Type of Zeolite from Funnel-Glass Waste (브라운관의 후면유리 폐기물을 이용한 제올라이트 합성)

  • 장영남;배인국;채수천;류경원
    • Economic and Environmental Geology
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    • v.34 no.2
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    • pp.167-173
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    • 2001
  • Through alkaline hydrothermal activation processes, Na-A type zeolite was synthesized as a single phase with funnel-glass waste from a television tube factory. The autoclaving was performed in a closed teflon vessel in the range of 80~95$^{\circ}$C. The silica-rich solution as a starting material was hydrothermally synthesized with quartz in IN NaOH by heating 350uC under the pressure of 1,500 atm. $NaAlO_2$ was made from NaOH and Al(OHh by heating 95$^{\circ}$C for 2-3 hours and the molar ratios of it were $Na_2O/Al_2O_3$ = 1.4 and $H_2O/Na_2O$=8. The equi-dimensional A type zeolite (1-2 11) was formed by the simple mixing of the silica-rich solution, glass waste and $NaAlO_23$ for 1-3 hours-heating at $80^{\circ}C$. The characterization of the reaction product shows Na-A as a single phase. The synthesized zeolite has cuba-dodecahedral form and $Ca^{2+}$ ion exchange capacity of the Na-A was in the range of 215-220 mequiva1entilOO g.

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