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651.

자기결정성이론의 연구 동향 및 학업성취와의 관계에 대한 메타분석

김성수, 윤미선 한국교육학회 교육학연구 30 Pages

한국교육학회 교육학연구 2012, 50권 4호 8 77-106 (30 pages)

김성수, 윤미선 저
...
- 5,900원
이 연구에서는 자기결정성과 관련된 기존 논문들에 대해 연도별, 연구내용별, 연구방법별로 경향 성을 분석하고 학업성취와의 관계성을 메타분석함으로써 산발적으로 축적된 연구결과들을 체계적으로 압축하여 요약하고자 하였다. 연구목적을 달성하기 위하여 한국연구재단에 등재된 총 44개 학술지를 대상으로 1차 자료를 수집하여 총 105편의 자기결정성 논문을 분석 대상으로 선정하였다. 그 중 학업 성취와의 상관관계가 포함된 31개의 연구를 메타분석에 사용하였으며 최종 분석에 사용된 연구 표본 은 총 25,034명이었다. 동향 분석...
652.

도덕딜레마에 나타난 대학생의 5가지 도덕지향

서미옥 한국교육학회 교육학연구 26 Pages

한국교육학회 교육학연구 2012, 50권 2호 2 25-50 (26 pages)

서미옥 저
...
- 5,500원
개인은 각기 다른 도덕지향을 가지고 있다. Colby와 Kohlberg(1987)가 제안한 도덕지향에는 규범 질 서 지향, 자기중심적 지향, 공리주의, 이상주의 혹은 조화추구적 지향, 공정성 지향의 5가지가 있다. 본 연구는 딜레마의 유형과 5가지 도덕지향의 관계를 규명하려는 것이다. 이러한 연구목적을 위해 179명의 대학생을 대상으로 콜버그의 2개의 딜레마와 본 연구에서 구성한 2개의 딜레마가 제시되었으며 5가지 도덕지향에 대한 빈도가 조사되었다. 본 연구 결과는 다음과 같다. 첫째, 딜레마에 따라 대학생들은 5가지 도덕지향의...
653.

Graphene accelerates osteoblast attachment and biomineralization

Jia Ren, Xiaogang Zhang, Yao Chen 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 5 42-47 (6 pages)

Jia Ren, Xiaogang Zhang, Yao Chen 저
...
- 3,000원
In this paper, the in vitro biocompatibility of graphene film (GF) with osteoblasts was evaluated through cell adhesion, viability, alkaline phosphatase activity, F-actin and vinculin expressions, versus graphite paper as a reference material. The results showed that MG-63 cells exhibited stronger cell adhesion, better proliferation and viability on GF, and osteoblasts cultured on GF exhibited vinculin expression throughout the cell body. The rougher and wrinkled surface morphology, higher...
654.

Nanoporous carbon synthesized from grass for removal and recovery of hexavalent chromium

Shahin A. Pathan, Nancy S. Pandita 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2016, Vol.20 2 10-18 (9 pages)

Shahin A. Pathan, Nancy S. Pandita 저
...
- 3,000원
Nanoporous carbon structures were synthesized by pyrolysis of grass as carbon precursor. The synthesized carbon has high surface area and pore volume. The carbon products were acid functionalized and characterized by Fourier transform infrared spectroscopy, X-ray diffraction, Brunauer?Emmett?Teller, transmission electron microscopy, and Energy Dispersive X-ray microanalysis. Acid functionalized nanoporous carbon was explored for use in removal of toxic Cr(VI) ions from aqueous media. An...
655.

Adsorption capability of activated carbon synthesized from coconut shell

Md Shariful Islam, Bee Chin Ang, Samira Gharehkhani, Amalina Binti, Muhammad Afifi 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2016, Vol.20 1 1-9 (9 pages)

Md Shariful Islam, Bee Chin Ang, Samira Gharehkhani, Amalina Binti, Muhammad Afifi 저
...
- 3,000원
Activated carbon was synthesized from coconut shells. The Brunauer, Emmett and Teller surface area of the synthesized activated carbon was found to be 1640 m2/g with a pore volume of 1.032 cm3/g. The average pore diameter of the activated carbon was found to be 2.52 nm. By applying the size-strain plot method to the X-ray diffraction data, the crystallite size and the crystal strain was determined to be 42.46 nm and 0.000489897, respectively, which indicate a perfect crystallite structure. The...
656.

A review: role of interfacial adhesion between carbon blacks and elastomeric materials

Min-Joo Kang, Young-Jung Heo, Fan-Long Jin, Soo-Jin Park 한국탄소학회 Carbon Letters 10 Pages

한국탄소학회 Carbon Letters 2016, Vol.18 1 1-10 (10 pages)

Min-Joo Kang, Young-Jung Heo, Fan-Long Jin, Soo-Jin Park 저
...
- 3,000원
Carbon blacks (CBs) have been widely used as reinforcing materials in advanced rubber composites. The mechanical properties of CB-reinforced rubber composites are mostly controlled by the extent of interfacial adhesion between the CBs and the rubber. Surface treatments are generally performed on CBs to introduce chemical functional groups on its surface. In this study, we review the effects of various surface treatment methods for CBs. In addition, the preparation and properties of CB-reinforced...
657.

Cu nanoparticle-embedded carbon foams with improved compressive strength and thermal conductivity

Ji-Hyun Kim, Kyung Hoon Kim, Mi-Seon Park, Tae-Sung Bae, Young-Seak Lee 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2016, Vol.17 No.1 9 65-69 (5 pages)

Ji-Hyun Kim, Kyung Hoon Kim, Mi-Seon Park, Tae-Sung Bae, Young-Seak Lee 저
...
- 1,500원
658.

One-step synthesis of dual-transition metal substitution on ionic liquid based N-doped mesoporous carbon for oxygen reduction reaction

Ulziidelger Byambasuren, Yukwon Jeon, Dorjgotov Altansukh, Yunseong Ji, Yong-Gun Shul 한국탄소학회 Carbon Letters 12 Pages

한국탄소학회 Carbon Letters 2016, Vol.17 No.1 8 53-64 (12 pages)

Ulziidelger Byambasuren, Yukwon Jeon, Dorjgotov Altansukh, Yunseong Ji, Yong-Gun Shul 저
...
- 4,100원
Nitrogen (N)-doped ordered mesoporous carbons (OMCs) with a dual transition metal system were synthesized as non-Pt catalysts for the ORR. The highly nitrogen doped OMCs were prepared by the precursor of ionic liquid (3-methyl-1-butylpyridine dicyanamide) for N/C species and a mesoporous silica template for the physical structure. Mostly, N-doped carbons are promoted by a single transition metal to improve catalytic activity for ORR in PEMFCs. In this study, our N-doped mesoporous carbons were...
659.

CO2 adsorption characteristics of slit-pore shaped activated carbon prepared from cokes with high crystallinity

Mi-Seon Park, Si-Eun Lee, Min Il Kim and Young-Seak Lee 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2015, Vol.16 No.1 7 45-50 (6 pages)

Mi-Seon Park, Si-Eun Lee, Min Il Kim and Young-Seak Lee 저
...
- 3,000원
High crystallinity coke-based activated carbon (hc-AC) is prepared using a potassium hydroxide solution to adsorb carbon dioxide (CO2). The CO2 adsorption characteristics of the prepared hc-AC are investigated at different temperatures. The X-ray diffraction patterns indicate that pitch-based cokes prepared under high temperature and pressure have a high crystal structure. The textural properties of hc-AC indicate that it consists mainly of slit-like pores. Compared to other textural forms of AC...
660.

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

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