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나유승,강정훈,이준희,소경운,인해교,조기춘 한국모빌리티학회 2023 모빌리티연구 Vol.3 No.1
With the technological development of smart mobility platforms, application services such as TaaS(Transportation as a Service) and MaaS(Mobility as a Service) are operating. Among these smart mobility, autonomous car is recently set to mass-produce Level 3 autonomous driving systems through the development of perception, decision, and control technologies. In this paper, we introduce various core technologies such as graph search, curve, sampling, optimization, and machine learning that can be applied to autonomous driving decision module, and introduce research trends by classifying into three categories. Also, we propose the direction of development of autonomous driving decision technology in terms of safety, optimization, and cloud-edge systems. Finally, this paper concludes by proposing manpower training strategies in various aspects such as government, educational institutions, national institutions, and industry.
유소년 운동선수를 자녀로 둔 부모의 부모되기 경험에 대한 사례연구
나유승,오지현 한국지역사회생활과학회 2023 한국지역사회생활과학회지 Vol.34 No.3
This study utilized a qualitative case study approach to explore the essence and meaning of the experience of becoming parents, for parents with “early adolescent children” in the preadolescent phase. The study recruited three parents who had children ranging from 6th grade in elementary school to 2nd grade in middle school, all belonging to the early adolescent group of youth athletes, in a domestic setting. Semi-structured interviews were conducted with each participant three times, lasting for 1 to 2 hours per session, using an open-ended questionnaire. The data analysis of this study employed a multiple-case analysis method. This involved conducting within-case analysis to provide detailed descriptions and identify themes within each case, as well as conducting cross-case analysis to extract characteristics and themes across cases. As a result, ten subcategories and five core categories were identified. The core categories included ‘Career guide parents’, ‘Unified family, excluded siblings’, ‘Another family: distant yet close relationship’, ‘Role of a manager and role of a mom, dad’, and ‘Not in the role of a manager or parent, just myself’. This is expected to contribute foundational material for counseling and parent education targeting parents of youth athletes. This would provide valuable insights to such parents.
날갯짓 초소형 비행체에서의 자이로스코프 및 가속도계 센서 동적 특성에 대한 연구
Steven Aurecianus,나유승,판호앙부,박훈철,강태삼 제어·로봇·시스템학회 2019 제어·로봇·시스템학회 논문지 Vol.25 No.11
Sensors have become inseparable components in designing control systems, but performance is often degraded by noise from the environment or system. In this paper, the performance of a gyroscope and accelerometer on a flapping wing micro aerial vehicle (FW-MAV) was studied. The effect of a flapping wing on the sensors was observed. The benefit of using a mechanical damper or foam were also compared. The vibration generated by the flapping motion caused the accelerometer to suffer rectification errors, leading to bias or offset shifts in the measurement. Common filtering methods, such as low pass filters and complementary or Kalman filters, are affected by this problem. This study demonstrates that the use of foam can reduce the rectification error significantly.