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        검색결과 8

        1.
        2021.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Recently, as the demand for a non-contact liquid crystal alignment method capable of improving viewing angle characteristics has spread throughout the industry, various non-contact liquid crystal alignment methods, including conventional UV light alignment, are being actively studied. In the case of UV light alignment, it is currently applied to mass production in many fields and shows relatively excellent initial characteristics, but there is a problem of display quality deterioration over time. In this study, among these non-contact liquid crystal alignment methods, the liquid crystal is oriented by quantitatively irradiating an ion beam onto the SiOF inorganic film, which has excellent initial characteristics and does not cause deterioration in quality over time., the electro-optical properties were evaluated by manufacturing a commercial-level IPS (In-Plane Switching) liquid crystal cell. In particular, in the case of such inorganic film orientation, it is common to have many problems with orientation stability, but the evaluation cell manufactured by the method proposed in this study is capable of maintaining a uniform orientation without losing orientation even after heat treatment at a high temperature of 200°C. could be observed.
        4,000원
        2.
        2020.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In this study, we studied the method of using general architectural glass instead of using the existing acrylic material for high luminance flat lighting. The flat panel lighting used the side illumination method to increase the ease of installation and aesthetic satisfaction. In general, glass has an amorphous structure with a lower angle of refraction than acrylic, so it is not suitable for use in flat panel lighting as a light guide, but in this study, the role of light distribution characteristics and diffusion patterns in the case of using such a glass light guide. Quantitative simulations were conducted to confirm new possibilities. In the simulation, the backlight estimation method was used, and about 10,000,000 rays were placed within a unit area in order to obtain a result similar to the real thing. As a result of the simulation, the geometry of the diffusion pattern could be specified, and the value of the geometry could be quantified using the ratio of the diameter and height of the pattern. As a result of the calculation, it was found that the maximum amount of light was generated around 75 degrees by quantitatively calculating the ratio and the outgoing light angle at which the maximum value of the outgoing light occurred between 05 and 1.0. As a result of these studies, it was confirmed that it is possible to use ordinary glass at the same time as a transparent window and light-emitting lighting at night.
        4,000원
        3.
        2002.10 KCI 등재 서비스 종료(열람 제한)
        본 연구는 한국 투기종목 선수들의 정신력 개념을 탐색하고, 정신력을 측정할 수 있는 한국형 정신력 측정 도구를 개발하는데 그 목적이 있다. 연구 1에서 정신력 개념에 대한 구조를 알아보기 위해 495명의 설문조사와 5명의 인터뷰를 실시한 결과 투기종목 선수들의 정신력은 인내력, 승부욕, 불굴의 투지, 한계상황 극복, 분투노력 등 다차원으로 구성되었다는 결론을 얻었다. 연구 2에서 정신력의 측정도구를 개발하기 위해 486명을 조사하여 정신력의 각 요인별 신뢰도와 타당도(수렴 타당도/변별 타당도), 탐색적 요인분석과 확인적 요인분석을 실시한 결과 4개의 하위요인(승부욕, 분투노력, 인내/끈기, 불굴의 투지)으로 나타났으며 총 20문항으로 구성되었다. 요인구조 적합성을 검증한 결과 적합도 지수 값들이 적합한 것을 나타났다