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Japan's GIGA School Initiative: Environmental Change and Its Educational Use
장지은(Jang Ji-eun), 박주언(Park Ju-eon), 마츠오유미(Matsuo Yu-mi), 송미란(Song Mi-ran) 한국교육학회 교육학연구 25 Pages
한국교육학회 교육학연구 2022, 60권 7호 4 63-87 (25 pages)
this review, the GIGA school initiative was found to have the following characteristics. First, the GIGA school initiative embodies a policy of equally providing elementary, middle, and high school students each with a terminal they can use in all subjects. Second, the GIGA school initiative aims to improve the quality of the curriculum so that students can learn more deeply through research and cooperative learning while using tablets and cultivating terminal operation skills. Third, the GIGA... -
Dispersions of partially reduced graphene oxide in various organic solvents and polymers
Hye Min Kim, Seo Gyun Kim, Heon Sang Lee 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2017, Vol.23 8 55-62 (8 pages)
by controlling the carbon to oxygen (C/O) atomic ratio of the PRGOs. A two-phase solvent exchange method is also proposed to transfer PRGO from water to an aprotic solvent, such as methyl ethyl ketone. We achieve relatively good dispersion in aprotic and non-polar solvents by controlling the C/O atomic ratio of the PRGOs and applying the two-phase solvent exchange method. There is an increase in the glass transition temperatures with the dispersion of PRGOs into amorphous polymers, in particular... -
Effects of maleic anhydride content on mechanical properties of carbon fibers-reinforced maleic anhydride-grafted-polypropylene matrix composites
Hyun-Il Kim, Woong Han, Woong-Ki Choi, Soo-Jin Park, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2016, Vol.20 6 39-46 (8 pages)
direct oxyfluorination on CF surfaces was applied to increase the interfacial strength between the CFs and MAPP matrix. The mechanical properties of the CFs/MAPP composites are likely to be different in terms of MA content. Surface characteristics were observed by scanning electron microscope, Fourier transform infrared spectroscopy, and single fiber contact angle method. The mechanical properties of the composites were also measured by a critical stress intensity factor (KIC). From the KIC test... -
The effects of stacking sequence on the penetration-resistant behaviors of T800 carbon fiber composite plates under low-velocity impact loading
Furqan Ahmad, Jung-Wuk Hong, Heung Soap Choi, Soo-Jin Park, Myung Kyun Park 한국탄소학회 Carbon Letters 9 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.2 6 107-115 (9 pages)
constant impact carrying the same impact energy level. An impact load of 3.44 kg, corresponding to 23.62 J, was applied to the center of each plate supported at the boundaries. The unidirectional composite plate showed the worst impact resistance and broke completely into two parts; this was followed by the quasi-isotropic lay-up plate that was perforated by the impact. The cross-ply composite plate exhibited the best resistance to the low-velocity impact load; in this case, the impactor bounced... -
Adsorption of volatile organic compounds using activated carbon fiber filter in the automobiles
Hyung Suk Moon, In Soo Kim, Sin Jae Kang, Seung Kon Ryu 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.3 8 203-209 (7 pages)
of the unused bed was short, and sharp “S” -type breakthrough curve was plotted soon after breakpoint, showing a narrow mass transfer zone of toluene on the ACF. The adsorption amount of toluene on the ACF filter was proportional to the specific surface area of the ACF; however, the development of mesopores 2-5 nm in size on the ACF was very effective with regard to the adsorption of toluene. The ACF air clarifier filter is strongly recommended to remove VOCs in newly produced automobiles. -
Superhydrophobic carbon-based materials: a review of synthesis, structure, and applications
Long-Yue Meng, Soo-Jin Park 한국탄소학회 Carbon Letters 16 Pages
한국탄소학회 Carbon Letters 2014, Vol.15 No.2 5 89-104 (16 pages)
water contact angles greater than 150°. Superhydrophobic carbon-based materials are particularly interesting due to their exceptional physicochemical properties. This review discusses the various techniques used to produce superhydrophobic carbon-based materials such as carbon fibers, carbon nanotubes, graphene, amorphous carbons, etc. Recent advances in emerging fields such as energy, environmental remediation, and thermal management in relation to these materials are also discussed. -
고등교육을 위한 인적자원개발 학습네트워크에 관한 연구 : 영국과 싱가포르 사례연구를 중심으로
조영하, 김태준 한국성인교육학회 Andragogy Today 38 Pages
한국성인교육학회 Andragogy Today 2004, Vol.7 No.4 6 127-164 (38 pages)
본 연구는 인적자원의 학습능력 배양에 있어 고등교육의 기능과 중요성을 인적자원개 발차원의 학습네트워크 관점에서 조명하고자 하였다. 1990년대 말부터 인적자원개발차 원에서의 고등교육을 포함하는 학습네트워크에 대한 연구적 관심이 증가하고 있으며 많은 학자들이 인적자원개발 측면에서 고등교육중심의 산학연계, 일과 학습의 중요성, 노동시장의 요구에 부합하는 학습프로그램의 질 개발 등의 노력이 절실하다는데 의견 을 같이하고 있다. 하지만 고등교육기관 - 특히 대학- 들의 전반적인 인적자원개발활동 참여 정도는... -
박판 정4각튜브의 동적 평균압괴하중
김천욱, 한병기, 원종진 한국자동차공학회 한국자동차공학회논문집 9 Pages
한국자동차공학회 한국자동차공학회논문집 1998, Vol.6 No.5 119-127 (9 pages)
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Teachers’ Experiences in Implementing Competency-Based Curriculum in South Korea
Lee Sangeun, Yu Ye-Lim 한국교육학회 교육학연구 29 Pages
한국교육학회 교육학연구 2021, 59권 7호 6 137-165 (29 pages)
to a questionnaire survey were analyzed. The findings revealed that teachers perceived the competency-based curriculum to be important for future-oriented education, and they showed great interest in applying the curriculum. Teaching and assessment demonstrated considerable changes, including a greater emphasis on self-directed and cooperative learning as well as process-oriented assessment. To better familiarize themselves with these changes, about one half of surveyed teachers participated in...
