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길안내 시스템에서의 영상처리와 칼만필터 이용한 물체추적
송효신,지창호,배종일,이만형 한국공작기계학회 2002 한국공작기계학회 춘계학술대회논문집 Vol.2002 No.-
The purpose of this paper is to implement a guidance system for an object on the road. A watch camera equipped on the auto door recognizes the direction for the destination of an object, after that it determines whether opening or closing the door, and then the door is opened automatically, based on the decision. The motion of the moving object is approximated by using the technique of the image processing of tracking images and the affine model. The direction of the moving object is predicted from image information obtained by applying linear Kalman filter to the motion estimation in order to reduce the search region, the moving position, and the direction of the center of the object. Along with the guidance function, the system has the announcing function to the object. The experimental results confirm the veridity and applicability of the proposed system.
송효일,김응수,윤기현 한국세라믹학회 1986 한국세라믹학회지 Vol.23 No.3
The preparation and electrical conductivity of $\beta$-$Al_2O_3$ are investigated as a function of $Na_2O$ content from the-oretical composition of $\beta$-$Al_2O_3$ to that of $\beta$"-$Al_2O_3$. $\beta$-$Al_2O_3$ $\beta$"$Al_2O_3$$\alpha$-Al2O3 and ${\gamma}$-NaAlO2 phases appear in the calcined powder at 125$0^{\circ}C$ for 2 hours. The majoity phase is $\beta$-$Al_2O_3$ in sintered specimens at 155$0^{\circ}C$ and 1$650^{\circ}C$ for 30 mins respectively and ${\gamma}$-4NaAlO_2$ phase also exists when Na2O content is over 10.39w/o ${\gamma}$-4NaAlO_2$ phase does not affect the grain growth of $\beta$-$Al_2O_3$ in sintering at 155$0^{\circ}C$ but acts as a reactive liquid for the abnormal grain growth of $\beta$-$Al_2O_3$in sintering at 1$650^{\circ}C$ The electrical conduction of $\beta$-$Al_2O_3$is predominated by 4Na^+$ ion. Contribution of ionic con-ductivity to total conductivity is gradually decreased with increasing temperature at given oxygen pressure and to -tal conductivity is increased by positive hole due to interstitial oxygen with increasing oxygen pressure.
β-Al₂O₃생성과 전기적 성질에 미치는 Na₂O의 영향
송효일,윤기현,김응수 연세대학교 산업기술연구소 1984 논문집 Vol.16 No.2
Beta-Alumina was prepared with varying Na content from the theoretical composition of β-Al₂O₃(Na₂O·llAl₂O₃) to that of β″-Al₂O₃(Na₂O·5Al₂O₃). Phases and electrical properties of specimens have been investigated. For specimens sintered at 1600℃ for 30mins, Majority phase is β-Al₂O₃and when Na₂O content is over 7.98 wt%, β-Al₂O₃ phase only exists. However, for specimens sintered at 1600℃ for 90 mins, β-Al₂O₃ only is shown. For sintered β-Al₂O₃specimen with α-Al₂O₃, the resistivity is mainly affected by α-Al₂O₃, but for β-Al₂O₃specimen without α-Al₂O₃, it can be divided into part of three temperature regions by effect of grain boundary.
경영전략시뮬레이션게임이 중국대학생 창업교육에 미치는 영향에 관한 연구
宋曉利 한중경제문화학회 2015 한중경제문화연구 Vol.4 No.-
China’s economy has entered upon a new phase after undergoing the rapid development. But more and more social abuses are shown such as the soaring unemployment, the imbalance between supply and demand in the labor market. In order to deal with some uncertain market problems, the corporate takes immature measures to alleviate burdens by means of reducing the cost of raw materials or reducing the number of workers. The corporate didn’t go in for technical renovations or open new markets to create new opportunities. Yet this reality together with the lack of social experience and self-awareness makes the university graduates get lost in the decisions whether to be employed or to be self- employed. The difficulty of landing jobs forces many students to set up their own business. Meanwhile, with the development of computer and network technique, the digital games has entered into the daily life of the youth. Practice shows it is impossible to isolate them from digital games. Therefore a urgent problem is put forward. The problem is to provide high level business strategy games, to give guidance to students on landing jobs or creating jobs, to make up for the shortcomings in modern enterprise education by providing a series of educational business strategy games.
송효일,김응수,윤기현 한국세라믹학회 1985 한국세라믹학회지 Vol.22 No.5
A model for degradation of $eta$-$Al_2O_3$ is derived from sress generated by Poiseuille pressure capillary effect and effulent flux in charging process of Na-S Battery. Critical current density for degradation increase with increasing the crack length and crack tip radius. radius 10-7cm and crack length 10-5cm Dependence of crack growth velocity on crack lengh is seperated two regions that is for a large crack length it is predominated by Poiseuille pressure and effulent fluex but in the case of small crack length it is controlled by capillary effect.