• Title/Summary/Keyword: Rag

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Study of White Polymer Light Emitting Diode with Blending Method

  • Shin, Byong-Wook;Lee, Sung-Youp;Lee, Eui-Wan;Lee, Hyeong-Rag
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08b
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    • pp.1461-1463
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    • 2007

  • In this study, we report the luminescent properties of white polymer light emitting diode (WPLED) fabricated by soluble methods with poly-fluorenebased polymers blends which emit blue and yellow light. A device structure of ITO/PEDOT:PSS/Emissive Layer (EML)/Al was employed.

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A Reliability allocation for Door System of the AGT vehicle System (경량전철 차량시스템 출입문장치의 목표 신뢰도 배분)

  • Jeong, Rag-Gyo;Yoon, Yong-Ki;Lee, Byung-Song
    • Proceedings of the KIEE Conference
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    • 2001.07b
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    • pp.1233-1235
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    • 2001

  • 본 논문은 경량전철차량시스템의 출입문장치에 주어진 목표신뢰도를 바탕으로 출입문장치 구성품별 목표신뢰도를 정의하였으며 출입문 구성품의 목표신뢰도 배분은 출입문의 설계 및 유지보수과정에서 발견된 문제점을 분석하여 작성되었다. 또한 경량전철차량 출입문을 설계, 제작 및 유지보수에 필요한 지침을 마련하였다.

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Fabrication and Optical Properties of 2D Photonic Crystal Assisted Thin Film Phosphors

  • Oh, Jeong-Rok;Ko, Ki-Young;Do, Young-Rag
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.594-597
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    • 2008

  • This presentation introduces a simple strategy for producing 2D photonic crystal layers (PCL) with different structures. In an attempt to improve extraction efficiency from the thin film phosphors (TFPs), this study have examined the effects of the structural variables of the 2D PCLs on the light extraction efficiency of TFPs.

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Microwave Dielectric Properties of (Zr, Sn)$TiO_4$ ceramics according to Sn and Additives ((Zr, Sn)$TiO_4$ 세라믹스의 Sn 및 첨가제 양에 따른 고주파 유전 특성)

  • Yun, Jung-Rag;Kim, Kyung-Yong
    • Proceedings of the KIEE Conference
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    • 1993.11a
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    • pp.181-184
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    • 1993

  • Microwave characteristics of the system (Zr, Sn)$TiO_4$, ceramics within composition range X between 0.2 and 0.35 were investigated at 8GHz. For the improvement properties of (Zr, Sn)$TiO_4$, system, $Ta_2O_5$ and $WO_3$ addition in the range of 0.5 to 2.0wt% were investigated.

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Study on the Applicability of GNSS Based Railway System (위성항법기반 철도 적용성 연구)

  • Jeong, Rag-Gyo;Shin, Kyoung-Ho
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.1707-1713
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    • 2007

  • If GNSS-based location information, expected to become the mainstream of the future technology, is applied to the future transportation, it will be of benefit to as follows; cost reducing effects on operating expanse and constructing expense due to decrease of ground unit installation, development of new technologies for train, or vehicle control system and becoming a front runner in the market. Therefore, this paper provides the minimum requirements for GNSS based system thru the studies on the applicability of GNSS based system to railway system, distinctions of the new technology between the existing technologies, and location accuracy.

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