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RISS 인기검색어
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- 저자 : 안정아(Jeong A An) (검색결과 161 건)
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안정열(Jeong-Yeol An) 대한전기학회 2017 전기학회논문지 P Vol.66 No.2
This papers propose a Hall-effect sensors position error compensation method in a sunroof system using a BLDC motor with a low-cost MCU. If the BLDC motor is controlled with this wrong position, the torque ripple and operating current can be increased and the average torque also decreases. Generally, sunroof system has characteristics that operate at constant load for several seconds. It is possible to find the minimum operating current value while changing the position of the Hall-effect sensor during the sunroof operation by using these characteristics. Therefore, propose a method to change the Hall-effect sensor position and find the minimum current value. The validity of the proposed algorithm is verified through experiments.
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재일 한인 잡지소재 "김지하 담론"의 정치적 의미 - 『삼천리』를 중심으로 : 재일 한인 잡지소재 "김지하 담론"의 정치적 의미
안정화(An Jeong-Hwa) 한국문학회 2006 韓國文學論叢 Vol.42 No.-
The significance implied in Kim, Ji-Ha"s discourse in 『Samcheonri』 looks narrow but is wide. It is because the "political nature of non-political nature" pursued by the magazine was melted in there. 『Samcheonri』 should have liked the position of Kim, Ji-Ha as an obscure poet, i. e. a man of culture but the result he would yield should have been known to be sufficiently political. Most part of the effect of the Kim, Ji-Ha"s discourse on the community of Korean residents in Japan should have been forecastable. Kim, Ji-Ha"s idea on democracy and the dictatorship had been displayed as a desirable shape of home country hoped by the community of Korean residents in Japan. Also Kim, Ji-Ha"s grand attitude against advanced countries (U. S. A., Russia and Japan) has been greatly encouraging the Korean public in Japan and also gave generated the recognition that the future of home country was not so dark. In addition, in the situation that only the stories of oppressed Korean public had been introduced in Japan and other countries by the superficial articles of Japanese press, introducing the aspect of Korean public that was like grass-roots was an important thing to the Korean public in Japan. Together with the aspect that it would provide proper perception on Korean public to make the life of Korean public in Japan positive, it is imaginable there should have been the pleasure of themselves that it might enhance the grade of their life by one stair. Although Kim, Ji-Ha"s theory on unification was deficient of reality, it suggested the way of Korean public to go forward criticizing both of the systems thus the Korean public in Japan accommodated it as the blueprint for the future in the times of separation and spared the space of 『Samcheonri』. 『Samcheonri』 has fulfilled the role as a special magazine for the Korean public in Japan. It gave a deep consideration on how the community of Korean public in Japan would accommodate the reality of Korean politics and the movement of democratization and tried to deliver the opinion of Korean public in Japan on home country by an appropriate mixture of politics and culture. The expression of their will on democratization and unification through the window termed Kim, Ji-Ha was one of the few "cultural" way of 『Samcheonri』 and Korean public in Japan to participate in the future of home country.
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한국산 종개속 (Barbatula) 어류의 유전적 다양성 특성 연구
안정현 ( Jung-hyun An ),유정남 ( Jeong-nam Yu ),김병직 ( Byung-jik Kim ),배양섭 ( Yang-seop Bae ) 한국어류학회 2021 한국어류학회지 Vol.33 No.2
Two stone loaches (Nemacheilidae, Cypriniformes), Barbatula toni (Dybowski, 1869) and B. nuda (Bleeker, 1864), have been recognized in the Korean waters to date. Recently, due to indiscriminate artificial introduction as well as the change of their habitats induced by natural disasters, it seems to be concerned about the damage of species-specific geographic boundaries. We examined the genetic difference of two Korean Barbatula species by the haplotype network based on the Cytochrome b sequences of mitochondrial DNA and the phylogenetic relationships among them including Barbatula fishes occurring around the Korean peninsula. As a result, three and 29 haplotypes were obtained from B. toni and B. nuda, respectively, and totally three clades comprising “toni group”, “nuda hangang group”, and “nuda donghae group” were identified. The sequence variable sites among them was 10~24%, showing a difference of interspecific level. Phylogenetic relationships of the latter group, especially, forms an independent cluster discriminating with other two groups as well as the Chinese, Japanese, Russian, and European Barbatula species, suggesting the possibility of the specific level divergence.
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