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우선순위 큐를 이용한 함정용 다기능 레이다의 빔 스케줄링 기법
박지웅(Jiung Park),양우용(Wooyong Yang),신상진(Sangjin Shin),전주환(Joohwan Chun) 한국전자파학회 2020 한국전자파학회논문지 Vol.31 No.2
본 논문에서는 우선순위 큐를 이용한 다기능 레이다의 빔 스케줄링 기법을 제안하였다. 제안된 기법은 방사될 시점을 우선순위로 하는 우선순위 큐를 사용하여 미래에 방사될 레이다 빔을 고려하여 스케줄링하도록 하였으며, 정밀 추적임무, 일반 추적 임무, 탐색 임무 각각의 우선순위 큐가 임무의 중요도를 고려하여 레이다 타임라인에 빔을 배치함으로써 효율적인 빔 스케줄링이 가능하도록 하였다. 검증 과정에서는 마르코프 체인을 이용하여 실제 해상 전투상황과 유사한 시뮬레이션 환경을 구현하였으며, 기존의 빔 스케줄링 기법과 비교했을 때 지연시간의 총 가중합을 극소화하면서 그 효율성을 확인하였다. In this paper, a beam scheduling method for analyzing shipborne multifunction radars using priority queues is presented. The proposed method uses priority queues that use the beam’s emission time as a priority. The priority queues for each of precision tracking, normal tracking, and search consider the significance of the task in performing efficient beam scheduling. We adopted a simulation environment similar to an actual maritime combat situation using a Markov chain. The efficiency of the proposed method is verified via comparison with other beam scheduling methods, and the total weighted tardiness is minimized.
피아제의 인지발달학적 측면에서 영화가 아동 배우에게 어떠한 영향을 미치는가?
김봉석(Bongseog Kim),박지웅(Jiung Park),황준원(Jun-Won Hwang),유희정(Hee-Jeong Yoo),곽영숙(Young-Sook Kwack),반건호(Geon Ho Bahn) 대한소아청소년정신의학회 2013 소아청소년정신의학 Vol.24 No.2
Many child actors have appeared in various movies as the Korean film industry continues to evolve. As more children appear in violent and raunchy scenes, there are more concerns about the movie’s effect on child actors. In some Western countries, many strategies have been developed for child actors, but for the Korean movie industry, the conditions are still poor for them. Although children who enter the concrete operational period are able to think logically and systematically, they are yet limited by their experiences. Adolescents in the formal operational period try to deal with all of the possibilities and assumptions logically and systematically with freedom from realistic contents and experiences. This period is very important because adolescents become more sensitive to others’ feelings and they should develop their ego identity. Several studies have reported the indirect experiences through media including how the movie affected children and adolescents negatively. Depending on the individual’s morality, judgment and emotional status, these effects were variable and inconsistent and could be relieved by several interventions. We could anticipate much bigger emotional effect on child actors who are acting directly and then are confronting themselves in the scene. Therefore, we suggest that the emotional effects of the movies on child actors can be managed properly by considering children’s cognitive ability and emotional status, and establishing protective strategies before they are exposed to problematic scenes. Of course, it should be followed by evaluating them after the exposure and with follow-up management, if necessary.