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오희재,양은주 한국교육철학회 2024 교육철학 Vol.42 No.1
Exploring Illich’s idea of ‘deschooling’ and its implications for today Oh, Hee Jae · Yang, Eun Joo This study is an attempt to understand the nature of the recent deepening school crisis as fundamentally connected to the problems of modern society and to illuminate the innovative direction of school education by exploring the implicated meanings of Illich's idea of ‘deschooling’ for today. For this purpose, we first re-examine Illich's critical discussion about the phenomenology of the modern "schooled" society and the mythical functions of institutionalized schools, which will provide relevant insights into the essential nature of the crisis facing today's schools and society. Next, we explicate the constructive ideas regarding the contents and methods of school curriculum and the new ideal of well-educated persons underlying his alternative proposal of "learning webs", which will be shown to be in line with the recent effective proposals for school transformation as presented in UNESCO Futures of Education report in 2021. Key Words : Ivan Illich, deschooling, the institutionalization of values, convivial institution, Epimethean man
자외선 조사를 이용한 SnO<sub>2</sub> 나노입자/Pd 촉매층을 갖는 GaN 기반 수소 센서의 안정성 개선 연구
최원태,오희재,김정진,차호영,Won-Tae Choi,Hee-Jae Oh,Jung-Jin Kim,Ho-Young Cha 반도체공학회 2023 반도체공학회 논문지 Vol.1 No.1
본 연구에서는 SnO<sub>2</sub> 나노입자와 Pd 금속의 이중층으로 구성된 촉매층을 갖는 AlGaN/GaN 이종접합 기반의 상온동작 수소센서를 제작하여 해당 센서의 안정성 개선 연구를 수행하였다. 제작된 센서를 고온 환경이 아닌 상온에서 수소에 노출 및 차단을 반복하며 동작 시켰을 때 시간에 따라 대기전류가 감소하는 불안정한 전류 드리프트 (current drift) 현상이 발생하였지만, 자외선 (UV) 조사를 함께 진행하면서 반복 측정을 하였을 때 해당 불안정성의 가시적인 개선 효과를 이루었다. An AlGaN/GaN heterojunction-based hydrogen sensor with SnO<sub>2</sub> nanoparticles/Pd catalyst layer was fabricated for room-temperature hydrogen detection. The fabricated sensor exhibited unstable drift in standby current when it was operated at room temperature. The instability in the sensing signal was dramatically improved when the sensor was operated under UV illumination.