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김명녕,권순석 한국정보통신학회 2003 한국정보통신학회논문지 Vol.7 No.4
In this paper, a mercury-free flat discharge lamp with opposite electrode structure, a couple of phosphor layer and discharge vessel has been studied for LCD back-lighting. When the drive voltage conditions were set properly, a uniform discharge generates over entires emitting surface. The firing voltage was increased with increasing the discharge gas pressure. It was considered that this tendency was resulted from the decrease of mean free paths due to the increase of discharge gas pressure. The maximum luminance of 2700[cd/m2] was obtained in the green emitting FFL. 본 논문에서는 LCD 후면 광원용 한 쌍의 형광층, 방전용기 및 대향전극을 갖는 무수은 평판형광램프에 대하여 연구하였다. 구동 전압이 인가되면 균일한 방전이 램프 전체에 걸쳐서 발생한다. 방전개시전압은 가스 압력에 따라 증가한다. 이와 같은 경향은 방전 가스 압력의 증가에 의한 평균자유행정의 감소에 기인된 것으로 생각된다. 녹색 발광 평판형광램프에서 최대 2700[cd/m2]의 휘도를 얻었다.
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김명녕,권순석,이정환 大田産業大學校 2002 한밭대학교 논문집 Vol.19 No.-
In this paper, the frequency characteristics of flat fluorescent lamp(FFL) using ultra-violet generated from gas discharge are studied. The lamp is constructed of a simple structure with insulator layer, phosphor layer, and gas gap(1.1 [㎜]). The firing voltage is decreased as the frequency is increased. It is considered that this tendency is resulted from the space charge effect due to Xe and Ar positive ions trapped in gas gap. Decreasing of uniform voltage at the region of higher drive frequency is due to the remaining space charges which are produced by preceding period. Increasing the drive frequency, the luminance is also increased because ultraviolet generated in gas gap is increased. The luminance in FFL using Xe of discharge gas is shown 2700[cd/㎡] at the operation point of 700[V_rms], 80[㎑]. Uniformity is obtained 96[%] over the entire lamp surface. Hence, the maximum luminous efficiency is obtained 5[㏐/W].
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金明寧 大田工業專門大學 1983 論文集 Vol.33 No.-
Equivalent circuits are presented for the description of thin-film MIS capacitances of wide and small bandgab thin-film semiconductors, operated if depletion and inversion. Special attention is paid to paid and InSb and CdTe MIS capacitances. The possible influence of bulk traps in these semiconductors is taken into account. It is found that the inversion layer of InSb has a time constant of the order of the minority carrier life time, while the time constant of the CdSe inversion layer is so large that an inversion layer in CdSe will probably never occur.
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金明寧 大田工業大學 1988 한밭대학교 논문집 Vol.5 No.2
Influence of velocity and temperature on the streaming electrification phenomena in transformer insulating oil is investigated by injection method. Leakage current is increased slightly with increasing temperature in the temperature range 20 to 80℃ at low flow rate, however, it shows a peak in the temperature 40 to 60℃ at high flow rate. Leakage current is also increased linearly with increasing flow rate in the flow rate range one to three 1/mln but thereafter, it is increased abruptly with increasing flow rate.
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金明寧 大田工業專門大學 1982 論文集 Vol.31 No.-
Expressions for the photovoltage and photocurrent of a intensely illuminated P-N junction solar cell are obtained from solving the ambipolar diffusion equation. A complete boundary condition is derived for the junction, which is appropriate for all love]s of injection. In the open and short circuit, theories are adduced by earlier those. These will be used to explain the experimental results of earlier workers.
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서울 컨벤션 개최지 브랜드 개성이 참가자의 태도와 행동에 미치는 영향
김명녕,황성민,김철원 한국무역전시학회 2021 무역전시연구 Vol.16 No.3
본 연구에서는 컨벤션 개최지의 브랜드 개성이 참가자의 태도와 행동에 미치는 영향 을 분석하기 위해 연구를 실시하였다. 컨벤션 개최지의 브랜드 개성은 ‘세련된’, ‘진솔한’, ‘풍요로운’, ‘독특한’, ‘매력적인’의 5가지 요인으로 구성하였으며 참가자의 태도는 인지적 태도와 감정적 태도로 구성하였다. 컨벤션 개최지의 브랜드 개성의 5가지 요인 중 ‘진솔한’을 제외한 나머지 요인은 참가자의 인지적 태도에 유 의한 영향을 미치는 것으로 분석되었다. 컨벤션 개최지의 브랜드 개성과 참가자의 감 정적 태도 간의 영향관계 검증 결과 ‘세련된’을 제외한 나머지 요인이 참가자의 감 정적 태도에 영향을 미치는 것으로 검증되었다. 컨벤션 참가자의 인지적 태도와 감정 적 태도는 사후행동에 모두 유의한 영향을 미치는 것으로 검증되었다. 본 연구 결과를 바탕으로 컨벤션 참가자에게 포지셔닝된 브랜드 개성 차원을 발견하 여 홍보나 브랜딩전략에 이용하는 것도 필요하지만 전반적인 브랜드 개성 차원의 관리 가 장기적 마케팅 차원에서 도움이 될 수 있다는 것을 알 수 있다. This study aims to measure the brand personality for convention destinations in Seoul and analyze the influence of the brand personality of the convention destination on participant attitude and post-behavior intention. This study used the Convention Brand Personality Scale(CBPS) for convention destinations to measure brand personality. This study also showed that among the five dimensions and 21 detailed factors of brand personalities, ‘attractive’ and ‘modern’ were highly rated in Seoul as a convention destination. The study also showed that the factors that affect one’s cognitive and emotional attitude might vary depending on the brand personality level of the venue. The study could be helpful to the field of strategic convention destination marketing by offering evidence of brand personalities for Seoul and an effective marketing tool to attract more participants in Seoul conventions.
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有機化合物이 添加된 低密度폴리에틸렌에서 交流電壓트리特性의 溫度依存性
金明寧 大田開放大學 1987 論文集 Vol.6 No.-
The paper describes the temperature dependence of electrical tree initiation on different organic additives in low density polyethylene, for AC voltages. Experimental results of characteristic voltage versus temperature by different additives indicates that. 1. temperature rising reduce the initial electrical tree voltage for different organic additives. 2. the initiation tree voltage is suppressed with polar organic aditives at room temperature, but around the 80℃ the voltage is reduced as well as the nonpolar additives. 3. only with suitable additive amount of m-Cresol in L.D.P.E. is suppressed in effect the propagation of tree at room temperature.
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