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        검색결과 352

        61.
        2020.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        이 논문의 목적은 현대 영미 시인에게서는 찾아보기 어려운 ‘윤리적 시각’을 히니가 추구하고 있음을 그의 시 전체를 읽어서 증명하는 것이다. 여기서 언급한 ‘윤리적 시각’의 의미는 자신의 부모, 국토 그리고 공동체의 문화라는 그 뿌리와 ‘타자’ 나아가 영혼에 대한 사랑과 책임감인 것이다. 한편 히니의 시적 발전 단계는 겔트, 게일릭 전통을 추구하는 초기 시, 아일랜드와 영국 미국, 유럽적 가치가 공존하는 글로컬리즘을 추구하는 중기 시, 그리고 아일랜드의 정신적 뿌리인 ‘이시누쿠’를 추구하는 후기 시의 세 단계로 구분된다. 그런데 각 시적 발전 단계에다 다음과 같은 이유로 ‘윤리적’이란 말을 적용시킬 수 있다, 초기 시에는 그가 성장한 배경인 민속 문화와 고난의 역사 속에서 생존한 선조와 부모에 대한 작가의 연민과 책임 정신이 표현되었고, 중기 시에는 자신과 자신이 속한 공동체를 객관적으로 비판하고 그 공동체를 대변하지 못 했음에 죄의식을 느끼면서 다른 한편으로는 ‘차이’를 수용하려는 균형 잡힌 정신이 반영되고 있기 때문이다. 그리고 후기 시에서는 화해와 심미 정신을 바탕으로 한 숨겨진 아일랜드의 정신을 추구하기 때문이다.
        5,200원
        62.
        2020.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In order to satisfy customers, it is important to identify the quality elements that affect customers’ satisfaction. The Kano model has been widely used in identifying multi-dimensional quality attributes in this purpose. However, the model suffers from various shortcomings and limitations, especially those related to survey practices such as the data amount, reply attitude and cost. In this research, a model based on the text sentiment analysis is proposed, which aims to substitute the survey-based data gathering process of Kano models with sentiment analysis. In this model, from the set of opinion text, quality elements for the research are extracted using the morpheme analysis. The opinions’ polarity attributes are evaluated using text sentiment analysis, and those polarity text items are transformed into equivalent Kano survey questions. Replies for the transformed survey questions are generated based on the total score of the original data. Then, the question-reply set is analyzed using both the original Kano evaluation method and the satisfaction index method. The proposed research model has been tested using a large amount of data of public IT service project evaluations. The result shows that it can replace the existing practice and it promises advantages in terms of quality and cost of data gathering. The authors hope that the proposed model of this research may serve as a new quality analysis model for a wide range of areas.
        4,000원
        63.
        2020.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        건축은 우리 실제 삶 가운데 존재하지만, 영화·게임 등의 가상세계 속 세상의 배경이 되어 다양한 모습으로 보여진다. 영화와 게임, 애니메이션의 공간 속에서 건축은 영화 미술의 중요한 역할을 하며 애니메이션과 게임 속 가상 세계의 스토리를 흥미롭고 현실감 있게 표현하는 중요한 수단이 되고 있다. 특히 4차 산업혁명 시대의 중요 기술 중 하나인 가상현실과 증강현실 콘텐츠 개발에도 건축은 현실 표현이자 창의적 가공을 통한 결정적 모티브 역할을 담당하고 있다. 또한 최근 게임 제작 분야의 3D모델링 게임제작에 건축전공자와 게임디자이너의 협업을 통한 시너지로 풍부한 콘텐츠가 개발되고 있다. 본 논문에서는 디지털 콘텐츠의 가상세계 속 건축 디자인 사례를 분야별로 분석하고 최신 동향과 앞으로의 활용 방안을 제시하고자 한다.
        4,500원
        68.
        2020.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The carbon anode material for lithium-ion battery was prepared by pyrolysis fuel oil and waste polyethylene terephthalate (PET) additive. The pitch was synthesized as a medium material for carbon anode by heat treatment. The waste PET additive improved the softening point and thermal stability of the pitch. La and Lc of the anode material (heat-treated pitch) increased at higher treatment temperature but decreased by waste PET additive. The electric capacity was evaluated based on effects of defective cavity and developed graphite interlayer, respectively. When the La and Lc of the anode material decreased, the electric capacity by cavity increased based on defective graphite structure. Therefore, the addition of waste PET causes the improved capacity by the cavity. The anode material which has a high efficiency (over 95%) and C-rate (95%, 2 C/0.1 C) was obtained by controlling the process of heat treatment and PET addition. The mechanism of lithium-ion insertion was discussed based on effects of defective cavity and developed graphite interlayer.
        4,000원
        75.
        2020.08 KCI 등재 SCOPUS 구독 인증기관 무료, 개인회원 유료
        In the present investigation we show the effect of Al doping on the length, size, shape, morphology, and sensing property of ZnO nanorods. Effect of Al doping ultimately leads to tuning of electrical and optical properties of ZnO nanorods. Undoped and Al-doped well aligned ZnO nanorods are grown on sputtered ZnO/SiO2/Si (100) pre-grown seed layer substrates by hydrothermal method. The molar ratio of dopant (aluminium nitrate) in the solution, [Al/Zn], is varied from 0.1 % to 3 %. To extract structural and microstructural information we employ field emission scanning electron microscopy and X-ray diffraction techniques. The prepared ZnO nanorods show preferred orientation of ZnO <0001> and are well aligned vertically. The effects of Al doping on the electrical and optical properties are observed by Hall measurement and photoluminescence spectroscopy, respectively, at room temperature. We observe that the diameter and resistivity of the nanorods reach their lowest levels, the carrier concentration becomes high, and emission peak tends to approach the band edge emission of ZnO around 0.5% of Al doping. Sensing behavior of the grown ZnO nanorod samples is tested for H2 gas. The 0.5 mol% Al-doped sample shows highest sensitivity values of ~ 60 % at 250 ˚C and ~ 50 % at 220 ˚C.
        4,000원
        79.
        2020.05 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In the study, energy flow analysis is performed to predict the performance of silencers. To date, deterministic approaches such as finite element method have been widely used for silencer analysis. However, they have limitations in analyzing large structures and mid-high frequency ranges due to unreasonable computational costs and errors. However, silencers used for ships and off-shore plants are much larger than those used in other engineering fields. Hence, energy governing equation, which is significantly efficient for systems with high modal density, is solved for silencers in ships and off-shore plants. The silencer is divided into two different acoustic media, air and absorption materials. The discontinuity of energy density at interfaces is solved via hypersingular integrals for the 3-D modified Helmholtz equation to analyze multi-domain problems with the energy flow boundary element method. The method is verified by comparing the measurements and analysis results for ship silencers over mid–high frequency ranges. The comparisons confirm good agreement between the measurement and analysis results. We confirm that the applied analysis method is useful for large silencers in mid-high frequency ranges. With the proven procedures, energy flow analysis can be performed for various types of silencer used in ships and off-shore plants in the first stage of the design.
        4,200원
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