통합 검색 | Korea Science

최숙영
- 한국정보통신학회:학술대회논문집
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- 한국정보통신학회 2017년도 추계학술대회
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- pp.635-637
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- 2017
'프로그래밍은 어렵다'라는 인식이 학습자들 가운데 퍼져있다. 실제로 대학교육에서 프로그래밍 수업의 중도 포기율이 다른 강좌들에 비해 높은 것을 볼 수 있다. 따라서 학습자들이 프로그래밍을 왜 어렵게 생각하는지 인지적인 측면의 분석을 통해 그에 대한 적절한 교수 전략이 필요하다. 최근에 뇌과학의 발달을 통해 뇌가 어떻게 학습하고 어떤 상황에서 가장 효과적으로 활동하는지 파악하여 적절한 학습 환경을 구축하기 위한 뇌친화적 학습에 대한 연구들이 진행되고 있다. 본 연구에서는 뇌친화적인 학습 원리를 기반으로 하여 프로그래밍 수업에 대한 교수 설계를 하였다.
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지혜연;최다슬;김정한
- 한국지진공학회논문집
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- 제25권1호
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- pp.33-42
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- 2021
The design response spectrum presented in the seismic design standard reflects the characteristics of the tectonic environment at a site. However, since the design response spectrum does not represent the ground motion with a specific earthquake magnitude or distance, input ground motions for response history analysis need to be selected reasonably. It is appropriate to use observed ground motions recorded in Korea for the seismic design. However, recently recorded ground motions in the Gyeongju (2016) or Pohang (2017) earthquakes are not compatible with the design response spectrum. Therefore, it is necessary to convert the recorded ground motion in Korea to a model similar to the design response spectrum. In this study, several approaches to adjust the spectral acceleration level at each period range were tested. These are the intrinsic and scattering attenuation considering the earthquake environment, magnitude, distance change by the green function method, and a rupture propagation direction's directivity effect. Using these variables, the amplification ratio for the representative natural period was regressed. Finally, the optimum condition compatible with the design response spectrum was suggested, and the validation was performed by converting the recorded ground motion.
https://doi.org/10.5000/EESK.2021.25.1.033 인용 PDF KSCI

김태훈;유창한;윤현주;김민평;윤호신
- 반도체디스플레이기술학회지
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- 제20권4호
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- pp.62-67
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- 2021
In this study, we have successfully developed an unique NVIS Green A compatible LED by combining two technologies. One is white LED made with a black EMC (epoxy molding compound) lead frame. The other is NVIS Green A filter that shields the near infrared region made in the film method. The form factor of the developed NVIS Green A compatible LED was 2.0 × 2.0 × 0.95 mm. And it is possible to satisfy NVIS radiance and color limit specified in MIL-STD-3009 by controlling the concentration of Green A dye and the thickness of the NVIS filter as well as adjusting of color temperature of the white LED. From these results, we are expected that the developed NVIS Green A suitable LED is a promising solution for the weight reduction and the cost reduction of avionic applications.
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