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박성천,Park, Seong-Cheon 한국하천협회 2006 하천과 문화 Vol.2 No.4
광주광역시에서 진행중인 광주천에 대한 자연형 하천정화사업은 다소간 단기적인 방안에 편중되어 있는 것으로 보이며, 그 결과물들이 자연형 하천에 걸맞지 않는 인위적 시설물이 편중되어 있다. 이의 극복을 위해 보다 장기적이며 지속 가능한 대안도 준비되어야 할 것으로 판단된다.
A Study on the Steering System of Electric Scooter
박성천 한국인터넷방송통신학회 2022 Journal of Advanced Smart Convergence Vol.11 No.2
Recently, the popularization of personal mobility(PM) has made it possible to see many electric scooters. The energy source of personal transportation used by the general public and the disabled can be seen as environmentally friendly as electricity. Personal transportation means are divided into small electric vehicles because they use electric energy, and they are being treated as new models by automobile manufacturers in each country and spurring development. On the other hand, personal transportation means may cause various types of traffic accidents as they travel between roads and a human walk. In order to prevent such accidents, it is judged that the enactment of laws on the establishment of specifications for electric scooters, which are personal transportation means, and the method of restricting road operation should be given priority. The electric scooter is basically different from the conventional vehicle. The steering shaft of the steering system applied to the electric scooter one to two is possible. 1 to 2 the front-wheel under the steering column is used. It is classified according to the number of wheel installed at the electric scooter is the vehicle body into 2 wheel - electric scooter, and 3 wheel - electric scooter and 4 wheel - electric scooter. In this study, we propose a steering shaft design model that can be applied to an electric scooter, one of personal transportation means. A design model for 1-shaft steering and 2-shafts steering that can be applied to electric scooters is proposed. In addition, we have produced the prototypes for the commercialization of the proposed models, and reviewed the pros and cons of the manufactured prototypes and models.
박성천 한국언어문학회 2006 한국언어문학 Vol.56 No.-
This paper attempts to inquire into Park Wan-suh’s autobiography novels, using narrative strategy as an analytical frame work. For this purpose, adopting the results of recent studies, technical aspects is considered by means of narrative strategy analysis of her work. the characteristic of point of view, the achronicity time, the narration are examined regarding how the narrative characteristicis is revealed in works. As for the point of view, the narrative shifts between‘I experiencing’and‘I narratinging’diversly, while the story is told in the first person narrator during the course of the novel. The achronicity revealed very diversly, and revealed by the prolopsis and analepsis. which is repeatitived the narrative time and the story time in text. in addition the narration have the two aspects; which describe the past experience is used by senstive narration and commentary on it is used by intelligentive narration. As the resulting of the narrative technical aspects achive a confirmation of self identity through the manner in which the confession of herr experience and the testimony of her witness in childhood and old age is presented.
朴成天,李相俊 東新大學校 工業技術硏究所 1997 工業技術硏究 Vol.3 No.-
This paper purpose of presenting the improvable effect of the Youngsan River water quality according to management of the Kwangju Chun water quality. QUAL2E model, the estimate model of the water quality is used in this paper. The river length of study-basin is 60.0km in middle channel of the Youngsan River. The river length is divided into 60 elements, and those are divided into 6 reaches. This paper focused on the improvement effect of the Youngsan River-water- quality, with water quality management degree of the Gwangju Chun and clean water inflow degree of the Youngsan River. As a result of estimate, the Youngsan River BOD concentration-regression equations that were based on BOD concentration of the Gwangju Chun and inflow clean water of the Youngsan River considerating the Gwangju Chun BOD concentration.