• Journal of the Korean Data and Information Science Society
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• v.21 no.1
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• pp.51-59
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• 2010

In the case that the regression function has a discontinuity point in generalized linear model, Huh (2009) estimated the location and jump size using the log-likelihood weighted the one-sided kernel function. In this paper, we consider estimation of the unknown number of the discontinuity points in the regression function. The proposed algorithm is based on testing of the existence of a discontinuity point coming from the asymptotic distribution of the estimated jump size described in Huh (2009). The finite sample performance is illustrated by simulated example.

• Broadcasting and Media Magazine
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• v.23 no.2
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• pp.68-79
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• 2018

본 논문에서는 2018 평창 동계올림픽에 맞춰 동계올림픽과 동계스포츠에 대한 관심을 높이는데 활용되고 있는 스포테이먼트 실감체험 플랫폼에 대해 소개한다. 에어플로팅스페이스기반 스포테이먼트 실감체험 플랫폼 개발을 통해 스키 및 스키점프 체험플랫폼을 설계하였고, 현재 국립부산과학관에 설치되어 운영되고 있다. 국립부산과학관에서 스키 및 스키점프 체험플랫폼은 관람객들에게 동계스포츠를 간접적으로 체험할 수 있게 하고, 이와 함께 평창올림픽에 대한 관심도를 높이는데 크게 활용되고 있다. 본 논문에서는 현재 국립부산과학관에 설치되어 운영되고 있는 스포테이먼트 시뮬레이터의 설계 및 개발 방법에 대해 소개하고자 한다.

• Journal of the Korean Vacuum Society
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• v.15 no.1
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• pp.14-23
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• 2006

The scroll pump is widely used in ultra clean vacuum systems. However, there is no commonly available information on the hydrogen pumping characteristics of this pump, which creates a difficulty in determining whether the scroll pump can be used or not in a fusion experiment system where hydrogen ,is the main working gas. In this paper the experimental setup, measurement procedures, experimental results, and discussions on the pumping speed, the maximum compression ratio and the back-streaming properties of the scroll pump, especially for the hydrogen gas, are reported.

• Proceedings of the KIEE Conference
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• 2008.10c
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• pp.56-58
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• 2008

전자유량계는 전자유도법칙을 발견한 패러데이의 원리를 이용한 것이다. 도체가 자장 내에서 운동할 때 그 도체 내 자장 및 운동방향에 서로 직각으로 기전력이 발생하며, 그 크기는 자속밀도와 유속에 비례한다. 본 논문에서는 전자유량계의 측정원리를 이용하여 용융금속 이송용 전자점프 시스템에서 전자유량계의 유량신호를 해석하였다, 또한 유량신호의 크기가 유동과 자속밀도의 크기에 따라 어떻게 영향을 받는지 유동해석을 이용하여 분석하였다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2021.01a
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• pp.57-60
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• 2021

현재까지 나타나고 있는 공포 게임은 크게 두 가지로 나뉘어 있다. 시각적으로 유저들의 눈을 감기느냐 아니면 심리적으로 유저들의 마음을 두렵게 사로잡느냐 하는 것으로 나뉘어 공포 게임들이 출시되고 있다. 이렇게 크게 두 가지로 나뉘고 있지만 이 두 가지를 또 나누어 시각적인 공포로는 점프 스케어, 즉 갑툭튀 방식의 플레이가 더 공포를 느끼는지 아니면 게임에 크리처가 나온다면 그 크리처의 모습만으로 공포감을 느끼는지, 심리적인 공포로는 크리처가 없는 심리 공포 게임이 무서운지 아니면 크리처가 있는 심리 공포 게임이 무서운지로 더 자세히 나누어 흔하디흔한 공포 게임들의 선입견을 찾아보고자 한다. 본 논문에서는 유저들이 공포 게임을 접할 때 시각적으로 더 공포감이 느껴지는지 아니면 심리적으로 더 공포감이 느껴지는지에 대한 선입견 차이를 통계를 통해 설명하고 해당 공포심으로 공포 게임들의 공포 방향성을 어떻게 바뀌어야 할지 제안을 하고자 한다.

• Proceedings of the Korean Aquaculture Society Conference
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• 2001.12a
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• pp.243-244
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• 2001

• Journal of Drive and Control
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• v.1 no.3
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• pp.39-46
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• 2004

• Journal of Digital Convergence
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• v.13 no.8
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• pp.495-502
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• 2015

The purpose of this study was to investigating the effect of taping knee by testing the difference on kinetic variables of lower extremity when speed skating athletes jump on one leg. The results were as follows. The height of jumping after taping was higher, but the vertical height was not different according to taping. On take-off(TO), the horizontal and anterior-posterior maximum impulse force were decreased while the vertical maximum impact force was increased after taping. On landing(LD), the anterior-posterior maximum impulse force was decreased but the horizontal and vertical maximum impulse force were increased. TO, the impulse showed low after taping and the impulse dropped largely LD. The knee's moment of extension, eversion were reduced after tapping TO. LD, the flection moment of knee was decreased, but the inversion moment was increased after tapping. This study implies that the knee tapping helps injury prevention and performance enhancement, sports medicine convergence are needed.

• Journal of the Korea Convergence Society
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• v.11 no.4
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• pp.343-350
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• 2020

This study was intended to use the Inertia Sensor Units(IMU) for the national women's handball team to quantify movements for a total of 16 domestic or international practice games over five months and to identify the efficiency of training and differences in movements by position. A total of 15 players were participated excluding goalkeepers. The results are as follows. Player Load came in order of Wing>Back>Pivot and high in international games. Change of Direction(CoD) were found to have the most Pivot at low intensity, while middle and high intensity were the most in the Back. There have been a lot of low and middle intensity CoD in International games. Low-intensity acceleration(ACC) and deceleration(DEC) were found to have the most Pivot, while middle & high intensity ACC and DEC had the most Back. There have been many low and middle intensity ACC and low, middle and high intensity DEC in international games. There were many middle and high intensity jumps in Back and Wing, but there were no differences in the types of games.

• Journal of Korean Society of Coastal and Ocean Engineers
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• v.24 no.3
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• pp.217-227
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• 2012

On 31 March 2007, the abnormal wave occurred along western coast of Korean including Yeonggwang. In this paper, this event is studied using available field measurement data for the event analysis and numerical model for reproducing the unknown waves. We found several 1-min interval tidal elevation and mean sea level pressure (MSLP) data along the western coast of Korea and analyzed it using wavelet technique. We computed the arrival time and the propagation direction of abnormal wave using wavelet results and performed the numerical simulation using 2 dimensional shallow water wave model. The sea level under the forcing of air pressure jump was obviously amplified by the Proudman resonant effect. The computed sea levels compared with observations are underestimated, but the order of arrival time at the tidal station showed good agreement.