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31.

효율적인 SOLAR CAR 파워 시스템을 위한 병렬구조의 최대전력 추적기 설계 및 해석

심재민, 김일송 인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 8 Pages

인문사회과학기술융합학회 예술인문사회융합멀티미디어논문지 2016, 제 6권 제 10호 57 585-592 (8 pages)

심재민, 김일송 저
- 3,000원
32.

예비교사를 위한 생물 읽기자료 개발

김경호 공주교육대학교 초등교육연구원 교육논총 23 Pages

공주교육대학교 초등교육연구원 교육논총 2019, 56권 1호 2 16-38 (23 pages)

김경호 저
...
- 5,200원
초등학교 과학 교과서 내용 가운데 포함되는 과학 읽기 자료의 중요성은 여러 연구에서 강조하고 있다. 특히 과학사를 읽기 자료에 편집하는 것이 학생들의 과학 학습에 긍정적인 영향을 준다는 연구가 많이 있다. 본 연구에서는 공주교육대학교 학생들이 선택하여 읽고 인증을 받는 교양 도서 가운데 과학사와 관련된 도서를 보다 효과적으로 학생들에게 읽을 수 있도록 안내하는 방안을 구안하였다. 선택한 도서의 저자가 과학사나 과학을 전공하지 않은 일반 저술가인 점이 고등학교에서 자연계열을 이수하지 않은 공주교육대학교...
33.

단일 버너 석탄 연소로에서 합성가스 재연소에 관한 연구

채태영 한국열환경공학회 열환경공학 9 Pages

한국열환경공학회 열환경공학 2020, 제 15권 1호 5 47-55 (9 pages)

채태영 저
...
- 무료
34.

PCBs함유 폐기물 처리를 위한 플라즈마 용융기술

박현서, 송현선, 박동화, 유병수 한국열환경공학회 열환경공학 17 Pages

한국열환경공학회 열환경공학 2011, 제 8권 1호 7 51-67 (17 pages)

박현서, 송현선, 박동화, 유병수 저
...
- 무료
35.

Graphitization of PAN-based carbon fibers by CO₂ laser irradiation

Liangbo Yao, Weimin Yang, Sanyang Li, Yang Sha, Jing Tan, Ying An, Haoyi Li 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 13 97-102 (6 pages)

Liangbo Yao, Weimin Yang, Sanyang Li, Yang Sha, Jing Tan, Ying An, Haoyi Li 저
...
- 3,000원
Graphite fibers are materials with a high specific modulus that have attracted much interest in the aerospace industry, but their high manufacturing cost and low yield are still problems that prevent their wide applications in practice. This paper presents a laser-based process for graphitization of carbon fiber (CF) and explores the effect of laser radiation on the microstructure of CF. The obtained Raman spectra indicate that the outer surface of CF evolves from turbostratic structures into a...
36.

Study on properties of eco-friendly reduction agents for the reduced graphene oxide method

Young-il Na, Young Il Song, Sun Woo Kim, Su-Jeong Suh 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 1 1-9 (9 pages)

Young-il Na, Young Il Song, Sun Woo Kim, Su-Jeong Suh 저
...
- 3,000원
We studied the basic properties and fabrication of reduced graphene oxide (rGO) prepared using eco-friendly reduction agents in the graphene solution process. Hydrazine is generally used to reduce graphene oxide (GO), which results in polluting emissions as well as fixed nitrogen functional groups on different defects in the graphene sheets. To replace hydrazine, we developed eco-friendly reduction agents with similar or better reducing properties, and selected of them for further analysis. In...
37.

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)

Hye Min Kim, Seo Gyun Kim, Heon Sang Lee 저
...
- 3,000원
We report on the dispersion state of partially reduced graphene oxide (PRGO) in organic solvents, namely methyl ethyl ketone, ethyl acetate, methylene chloride, toluene, and xylene, 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...
38.

Fabrication of nitrogen doped ordered mesoporous carbon derived from glucosamine with hybrid capacitive behaviors

Deyi Zhang, Mei Han, Yubing Li, Bing Wang, Yi Wang, Kunjie Wang, Huixia Feng 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2017, Vol.23 2 9-16 (8 pages)

Deyi Zhang, Mei Han, Yubing Li, Bing Wang, Yi Wang, Kunjie Wang, Huixia Feng 저
...
- 3,000원
This paper introduces a nitrogen-doped ordered mesoporous carbon (NOMC) derived from glucosamine with hybrid capacitive behaviors, achieved by successfully combining electrical double-layer capacitance with pseudo-capacitance behaviors. The nitrogen doping content of the fabricated NOMC reached 7.4 at% while its specific surface area (SBET) and total pore volume reached 778 m2 g?1 and 1.17 cm3 g?1, respectively. A dual mesoporous structure with small mesopores centered at 3.6 nm and large...
39.

High-energy-density activated carbon electrode for organic electric-double-layer-capacitor using carbonized petroleum pitch

Poo Reum Choi, Sang-Gil Kim, Ji Chul Jung, Myung-Soo Kim 한국탄소학회 Carbon Letters 11 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 8 70-80 (11 pages)

Poo Reum Choi, Sang-Gil Kim, Ji Chul Jung, Myung-Soo Kim 저
...
- 4,000원
Activated carbons (ACs) have been used as electrode materials of electric double-layer capacitors (EDLC) due to their high specific surface areas (SSA), stability, and ecological advantages. In order to make high-energy-density ACs for EDLC, petroleum pitch (PP) precarbonized at 500?1000°C in N2 gas for 1 h was used as the electrode material of the EDLC after KOH activation. As the pre-carbonization temperature increased, the SSA, pore volume and gravimetric capacitance tended to decrease, but...
40.

Nitrogen-doped carbon nanosheets from polyurethane foams and removal of Cr(VI)

Jiaqi Duan, Baohua Zhang, Huailin Fan, Wenzhong Shen, Shijie Qu 한국탄소학회 Carbon Letters 10 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 7 60-69 (10 pages)

Jiaqi Duan, Baohua Zhang, Huailin Fan, Wenzhong Shen, Shijie Qu 저
...
- 3,000원
hydrothermal carbonization following ZnCl2 chemical activation. Scanning electron microscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, solid state 13C nuclear magnetic resonance (NMR) spectra and X-ray photoelectron spectroscopy were used to characterize the nitrogen-doped carbon nanosheet structure and composition. The removal of Cr(VI) by the N-doped carbon nanosheets was investigated. The results showed that the maximum removal capacity for chromium of 188 mg/g was...

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