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421.

다중지능이론에 기반 한 청소년기 진로교육 방향 고찰

김주현 한국교육학회 교육학연구 24 Pages

한국교육학회 교육학연구 2005, 43권 2호 2 29-52 (24 pages)

김주현 저
...
- 5,300원
본 연구에서는 다중지능이론의 강점과 특성을 반영한 보다 체계적이고 효과적인 진로교육 과정을 구성하기 위해서 다중지능이론의 관점에서 진로교육의 목적과 성격이 어떠해야 하는지 고찰하고자 하였다. 이를 위해 첫째, 청소년기 진로교육에서 고려해야 할 다중지능이론의 기본 가정에 대해 탐색하고, 둘째, 진로교육의 토대가 된 기존의 진로이론과 다중지능이론을 비교,분석하였으며, 셋째, 관련선행연구들을 분석함으로써 진로교육의 방향을 탐색하였다. 연구 결과를 토대로 다중지능이론에 기반 한 청소년기 진로교육의 방향을...
422.

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
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 the crystallinity and electrode density tended to increase, showing a...
423.

Thermo-electrical properties of randomly oriented carbon/carbon composite

Thakur Sudesh Kumar Raunija, N. Supriya 한국탄소학회 Carbon Letters 11 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 3 25-35 (11 pages)

Thakur Sudesh Kumar Raunija, N. Supriya 저
...
- 4,000원
the samples’ physical properties and thermal properties, including thermal diffusivity, thermal conductivity, specific heat and coefficient of thermal expansion, was carried out. Additionally, direct current (DC) electrical conductivity in both the in-plane and through-plane directions was evaluated. The results indicated that after graphitization the specimens had excellent carbon purity (99.9 %) as compared to that after carbonization (98.1). The results further showed an increasing trend in...
424.

Effect of acid catalysts on carbonization temperatures for ordered mesoporous carbon materials

Jeong Kuk Shon, Xing Jin, Yun Seok Choi, Jong Gu Won, Yoon Kyung Hwang, Dae Jong You, Chengbin Li, Ji Man Kim 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2016, Vol.20 10 66-71 (6 pages)

Jeong Kuk Shon, Xing Jin, Yun Seok Choi, Jong Gu Won, Yoon Kyung Hwang, Dae Jong You, Chengbin Li, Ji Man Kim 저
...
- 3,000원
Highly ordered mesoporous carbon (OMC) materials have attracted much attention in many fields including catalysis, adsorption and energy storage, due to their high porosity, high surface area and controllable regular pore-structure [1-6]. Successful synthesis pathways for obtaining OMC materials include the direct synthesis of OMC materials through the organic-organic self-assembly method (soft templating process) and nano-replication of OMC materials from mesoporous silica templates (hard...
425.

Activating needle coke to develop anode catalyst for direct methanol fuel cell

Young Hun Park, Ui-Su Im, Byung-Rok Lee, Dong-Hyun Peck, Sang-Kyung Kim, Young Woo Rhee, Doo-Hwan Jung 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2016, Vol.20 7 47-52 (6 pages)

Young Hun Park, Ui-Su Im, Byung-Rok Lee, Dong-Hyun Peck, Sang-Kyung Kim, Young Woo Rhee, Doo-Hwan Jung 저
...
- 3,000원
suggest that an activated KOH needle coke container has the lowest onset potential and the highest degree of catalyst activity among all commercial catalysts. Through an analysis of the CO stripping voltammetry, we found that KOH activated catalysis showed a 21% higher electrochemical active surface area (ECSA), with a value of 31.37 m2/g, than the ECSA of deactivated catalyst (25.82 m2/g). The latter figure was 15% higher than the value of one specific commercial catalyst (TEC86E86).
426.

Morphologies and surface properties of cellulose-based activated carbon nanoplates

Seulbee Lee, Min Eui Lee, Min Yeong Song, Se Youn Cho, Young Soo Yun, Hyoung-Joon Jin 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2016, Vol.20 5 32-38 (7 pages)

Seulbee Lee, Min Eui Lee, Min Yeong Song, Se Youn Cho, Young Soo Yun, Hyoung-Joon Jin 저
...
- 3,000원
In this study, cellulose nanoplates (CNPs) were fabricated using cellulose nanocrystals obtained from commercial microcrystalline cellulose (MCC). Their pyrolysis behavior and the characteristics of the product carbonaceous materials were investigated. CNPs showed a relatively high char yield when compared with MCC due to sulfate functional groups introduced during the manufacturing process. In addition, pyrolyzed CNPs (CCNPs) showed more effective chemical activation behavior compared with...
427.

Carbon rich fly ash and their nanostructures

Numan Salah, Sami S. Habib, Zishan H. Khan, Ahmed Alshahrie, Adnan Memic, Attieh A. Al-ghamdi 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2016, Vol.19 3 23-31 (9 pages)

Numan Salah, Sami S. Habib, Zishan H. Khan, Ahmed Alshahrie, Adnan Memic, Attieh A. Al-ghamdi 저
...
- 3,000원
Carbon rich fly ash was recently reported to have compositions that are ideal for use as a precursor and catalyst for carbon nanotube growth. This fly ash powder is mostly composed of pure carbon, predominantly present as sp2. In this work, the effect of sonication time on the morphology and structural properties of carbon rich fly ash particles is reported. The obtained results show that ultrasound treatment is an effective tool for producing ultrafine particles/fragments with higher porosity,...
428.

Comparative study on various sponges as substrates for reduced graphene oxide-based supercapacitor

Dongcheol Choi, Kyuwon Kim 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2016, Vol.18 12 71-75 (5 pages)

Dongcheol Choi, Kyuwon Kim 저
...
- 1,500원
429.

Preparation of novolac-type phenol-based activated carbon with a hierarchical pore structure and its electric double-layer capacitor performance

Dayoung Lee, Jin-Young Jung, Mi-Seon Park, Young-Seak Lee 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.3 6 192-197 (6 pages)

Dayoung Lee, Jin-Young Jung, Mi-Seon Park, Young-Seak Lee 저
...
- 3,000원
areas and hierarchical pore size distributions. The hierarchical pore novolac-type phenol-based activated carbon was used as an electrode in electric double-layer capacitors, and the specific capacitance and the retained capacitance ratio were measured. The specific capacitances and the retained capacitance ratio were enhanced, depending on the SiO2 concentration in the material. This result is attributed to the hierarchical pore structure of the novolac-type phenol-based activated carbon.
430.

Polymer matrices for carbon fiber-reinforced polymer composites

Fan-Long Jin, Seul-Yi Lee, Soo-Jin Park 한국탄소학회 Carbon Letters 13 Pages

한국탄소학회 Carbon Letters 2013, Vol.14 No.2 2 76-88 (13 pages)

Fan-Long Jin, Seul-Yi Lee, Soo-Jin Park 저
- 4,200원

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