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521.

Roles of teachers and peers in conflicts between Korean kindergarteners

Heejin Kim 환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 30 Pages

환태평양유아교육연구학회 Asia-Pacific journal of research in early childhood education 2009, Vol.3 No.2 2 23-52 (30 pages)

Heejin Kim 저
...
- 5,900원
The nature and form of teacher and peer mediation in conflicts among 5-year-olds enrolled in kindergarten in Korea were systematically examined. Children were observed during free play on three consecutive days. A total of 278 cases of conflicts were observed and details about the conflict and intervention were coded. Results showed that teachers intervened in about half of the conflicts and that conflicts tended to last longer when there was third party intervention than in other cases....
522.

Synthesis and characterization of carbon doped TiO₂ photocatalysts supported on stainless steel mesh by sol-gel method

JO. Tijani, OO. Fatoba, TC. Totito, WD. Roos, LF. Petrik 한국탄소학회 Carbon Letters 12 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 6 48-59 (12 pages)

JO. Tijani, OO. Fatoba, TC. Totito, WD. Roos, LF. Petrik 저
...
- 4,100원
(EDS), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), and X-ray photoelectron spectroscopy (XPS). The XRD patterns showed that the supported TiO₂ nanocrystals are typically anatase, polycrystalline and body-centered tetragonal in structure. The EDS and XPS results complemented one another and confirmed the presence of carbon species in or on the TiO₂ layer, and the XPS data suggested the substitution of titanium in TiO₂ by carbon. Instead of using calcination, PAN pyrolysis was used...
523.

The impact fracture behaviors of CFRP/EVA composites by drop-weight impact test

Sun-Ho Go, Hong-Gun Kim, Hee-Jae Shin, Min-Sang Lee, Hyun-Gyung Yoon, Lee-Ku Kwac 한국탄소학회 Carbon Letters 10 Pages

한국탄소학회 Carbon Letters 2017, Vol.21 4 23-32 (10 pages)

Sun-Ho Go, Hong-Gun Kim, Hee-Jae Shin, Min-Sang Lee, Hyun-Gyung Yoon, Lee-Ku Kwac 저
...
- 3,000원
A drop weight impact test was conducted in this study to analyze the mechanical and thermal properties caused by the changes in the ratio of carbon fiber reinforced plastic (CFRP) to ethylene vinyl acetate (EVA) laminations. The ratios of CFRP to EVA were changed from 10:0 (pure CFRP) to 9:1, 8:2, 6:4, and 5:5 by manufacturing five different types of samples, and at the same time, the mechanical/thermal properties were analyzed with thermo-graphic images. As the ratio of the CFRP lamination was...
524.

Graphene: an emerging material for biological tissue engineering

SangKyu Lee, Hyun Kim, BongSup Shim 한국탄소학회 Carbon Letters 13 Pages

한국탄소학회 Carbon Letters 2013, Vol.14 No.2 1 63-75 (13 pages)

SangKyu Lee, Hyun Kim, BongSup Shim 저
- 4,200원
525.

Modeling and Characterization of Steam-Activated Carbons Developed from Cotton Stalks

A.M.Youssef, A.F.Hassan, M.Safan 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2013, Vol.14 No.1 2 14-21 (8 pages)

A.M.Youssef, A.F.Hassan, M.Safan 저
- 3,000원
526.

Fabrication and Applications of Carbon Nanotube Fibers

Hungo Choo, Yeonsu Jung, Youngjin Jeong, Hwan Chul Kim, Bon-Cheol Ku 한국탄소학회 Carbon Letters 14 Pages

한국탄소학회 Carbon Letters 2012, Vol.13 No.4 1 191-204 (14 pages)

Hungo Choo, Yeonsu Jung, Youngjin Jeong, Hwan Chul Kim, Bon-Cheol Ku 저
...
- 4,300원
527.

Preparation and Pore-Characteristics Control of Nano-Poros Materials using Organometallic Building Blocks

Gyn Hwan Oh, Chong Rae Park 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2003, Vol.4 No.1 1 1-9 (9 pages)

Gyn Hwan Oh, Chong Rae Park 저
...
- 3,000원
다공성 소재는 문자 그대로 많은 양의 기공을 함유하는 소재로서, 세재의 제조시 다량으로 사용되어 온 제올라이트 및 오염물질 제거용으로 사용되어 온 다공성 탄소와 같은 예에서 보는 바와 같이 오랜 세월동안 우리 생활의 일부로 존재해 왔다. 그러나, 이들 소재에 존재하는 기공들은 그 크기나 모양에 있어 규칙성 및 균일성을 찾아보기 힘들기 때문에 기공크기는 서브나노에서 서브미크론 혹은 미크론 크기까지 통계적 분포를 보이며 기공의 모양은 프랙탈적 특징을 나타내었다.
528.

Dewey, Freire, and Foucault and an Ever-Evolving Philosophy of (Mathematics) Education

Stinson, David W. 이화여자대학교 교과교육연구소 교과교육학연구 9 Pages

이화여자대학교 교과교육연구소 교과교육학연구 2016, 제 20권 2호 2 70-78 (9 pages)

Stinson, David W. 저
...
- 3,000원
In this essay, the author provides a working definition of philosophy from a cultural point of view, and argues the need for mathematics educators to develop their philosophy of mathematics teaching and learning or, to speak more broadly, their philosophy of education. He then historically situates three scholars?John Dewey, Paulo Freire, and Michel Foucault?who have been instrumental in the formulation of his philosophy of education. Next, he shares how the philosophies of these three scholars...
529.

중2학생의 신체매력, 또래관계 및 자아존중감의 관계

김유식, 이솔잎, 최재필 이화여자대학교 교과교육연구소 교과교육학연구 14 Pages

이화여자대학교 교과교육연구소 교과교육학연구 2016, 제 20권 1호 3 21-34 (14 pages)

김유식, 이솔잎, 최재필 저
...
- 4,300원
본 연구는 중2학생의 신체매력 정도를 알아보고, 신체매력, 또래관계 및 자아존중감의 관계를 검증하는 것이다. 이 를 위해 중2학생들에게 본인이 느끼는 신체매력 정도를 확인하고, 선행연구와 이론을 기초로 외생잠재변인으로 신체매력, 내 생잠재변인으로 또래관계 및 자아존중감을 설정하여 구조방정식 모형을 통해 관계를 검증하였다. 조사대상자의 모집단은 중 2학생이었으며, 서울특별시, 경기도에 거주하는 중2학생을 편의표본추출법을 이용하여 총 410명을 표집 하였다. 이후 분석에 적합하지 않은 표본을 제외하고 최종적으로...
530.

Burnout in the Context of Elementary Physical Education

Yoo, Seang-Leol 한국초등체육학회 한국초등체육학회지 14 Pages

한국초등체육학회 한국초등체육학회지 2014, 제 19권 제 4호 10 139-152 (14 pages)

Yoo, Seang-Leol 저
...
- 4,300원
The purpose of the study was to identify teacher’s professional identity and how this identity has relation to burnout for beginning elementary school physical education teachers. Job-related burnout inventory was administered to thirty one teachers in the early stage of the study. Seven teachers who got highest score in job-related burnout inventory were assigned to ‘burnout group’ and other seven teachers who got lowest score were assigned to ‘non-burnout group’. The rest of the teachers...

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