• Proceedings of the Materials Research Society of Korea Conference
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• 2005.05a
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• pp.159-159
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• 2005

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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• 2011.10a
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• pp.107-108
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• 2011

• LP가스
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• s.92
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• pp.30-38
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• 2004

지난 7월 21일 우운식 의원 주최로 국회도서관 대강당에서 열린 '대기오염저감을 위한 에너지상대가격체계 조개개편 토론회'에서 발제자로 나선 한국환경정책평가연구원 강만옥 연구의원, 환경정의 박용신 국장, 인하대 기계공학부 이대엽 교수의 발제 내용을 본지에 게재한다.

• Proceedings of the Korean Ceranic Society Conference
• /
• 2002.10a
• /
• pp.113.1-113
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• 2002

• Electric Engineers Magazine
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• s.375
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• pp.30-31
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• 2013

인천시 옹진군 영흥면 영흥화력발전소 유휴지에 지난 2011년 영흥풍력 1단지가 설립되었다. 1단지는 정부의 시책에 따라 신재생에너지설비 발전의 시작으로 시험적 성격이 강했다면, 그로부터 2년후 추가로 지어진 영흥풍력 2단지는 국산 풍력발전의 도입과 성장이 어느 정도 진행되었음을 알리는 신호라고 할 수 있다.

• Journal of the Korean Chemical Society
• /
• v.67 no.5
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• pp.393-397
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• 2023

• Proceedings of the Korean Environmental Sciences Society Conference
• /
• 2020.10a
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• pp.101-101
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• 2020

• Proceedings of the Korean Society of Crop Science Conference
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• 2021.10a
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• pp.13-13
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• 2021

• Journal of the Korean Vacuum Society
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• v.7 no.1
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• pp.66-71
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• 1998

Two kinds of $Ga_2S_3:Er$ (type A and type B) single crystals were grown by the chemical transport reaction method using iodine as a transport agent. The single crystals were crystallized into a monoclinic structure. The optical energy band gaps were found to 3.375 eV for the $Ga_2S_3:Er$ (type A) single crystal and 3.365 eV fir the $Ga_2S_3:Er$ (type B) single crystal at 13K. When the $Ga_2S_3:Er$ (type A and type B) single crystals were excited by the 325 nm-line of a Cd-He laser, Photoluminescence spectra of the $Ga_2S_3:Er$ (type A) single crystal exhibited blue emission band peaked at 444 nm and green and red emission bands peaked at 518 nm and 690 nm. Pgitikynubescebce soectra if the $Ga_2S_3:Er$ (typeB) single crystal showed green and red emission bands peaked at 513 nm and 695 nm. Sharp emission peaks in the two kinds if $Ga_2S_3:Er$ single crystal were observed near 525 nm, 553 nm, 664 nm, 812 nm, 986 nm, and 1540 nm and analysed as originating from the electron transitions between the energy levels of $Er^{3+}$ ion.

• Journal of The Korean Association For Science Education
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• v.36 no.5
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• pp.791-800
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• 2016

This research aimed to identify core words used as associative words and definitions for expressing 'electricity' terminology and to find how core ones are activated to form a cognitive structure, using network analysis. The participants targeted 83 university freshmen students in the University of Education located in suburbs. Depending on their gender, whether or not they completed physics in high school, the associative words and definitions were analyzed using the network method, classifying two sections: before-lesson and after-lesson. The result is as follows: At before-lesson associative words for 'electricity' terminology, a slightly different network construction was revealed based on their two properties. However, after the class, they showed similar network structure irrespective of their distinctive characteristics. When it comes to other 'electricity' definitions, before taking the course, they had similar network connection across the gender but based on physics education status, there appeared subtle differences. Ultimately, after the class they demonstrated similar network structure regardless of their features. In conclusion, this paper suggests educational implications on network analysis, which covers 'electricity' terminology of university students.