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211.

학교폭력 예방 및 대처를 위한 교사역량 진단척도 개발 연구

임재연, 박종효 한국교육학회 교육학연구 28 Pages

한국교육학회 교육학연구 2015, 53권 3호 15 407-434 (28 pages)

임재연, 박종효 저
...
- 5,700원
이 연구는 교사가 학교폭력을 예방하고 대처하기 위해 갖추어야할 교사역량의 진단척도를 개발하 고 타당화하는데 목적이 있다. 이를 위해 문헌분석을 통해 이론적 구성개념의 정의와 하위요인 및 문 항초안을 도출하였고, 총 11명의 전문가를 통해 총 4차례에 걸쳐 내용타당도를 검토한 뒤, 예비조사와 본조사를 통해 타당도와 신뢰도를 검증하였다. 설문조사의 자료 분석은 서울 및 경기 수도권의 현직 교사 총 758명을 대상으로 이루어졌다. 요인분석을 통해 구인타당도를 검증하였고, 수렴타당도와 변별 타당도를 확인하였다....
212.

불일치하는 꿈 : 미국 초등예비교사들과 교사교육자간의 교사교육에 관한 가치관 연구

신의경 한국교육학회 교육학연구 25 Pages

한국교육학회 교육학연구 2012, 50권 4호 4 23-47 (25 pages)

신의경 저
...
- 5,400원
이 연구는 혼합연구 방법을 사용한 연구로써, 미국 초등예비교사들과 교사교육자들 간의 교사의 역할, 예비교사들의 교사가 될 준비정도, 그리고 교사교육 프로그램의 강의들에 대한 생각과 가지관의 차이를 알아보고자 하였다. 연구 결과로, 초등예비교사들과 교사교육자들 사이에는 교사의 역할, 예비교사들의 교사가 될 준비 정도, 그리고 교사교육 프로그램의 강 의에 대한 생각과 가치관의 차이가 존재하는 것으로 나타났다. 이 연구 결과를 기초로, 교 사교육자들은 이러한 상이한 신념과 가치관을 어떻게 효과적으로 예비교사들과...
213.

NO gas sensing ability of activated carbon fibers modified by an electron beam for improvement in the surface functional group

Mi-Seon Park, Sangmin Lee, Min-Jung Jung, Hyeong Gi Kim, Young-Seak Lee 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2016, Vol.20 3 19-25 (7 pages)

Mi-Seon Park, Sangmin Lee, Min-Jung Jung, Hyeong Gi Kim, Young-Seak Lee 저
...
- 3,000원
Activated carbon fiber (ACF) surfaces are modified using an electron beam under different aqueous solutions to improve the NO gas sensitivity of a gas sensor based on ACFs. The oxygen functional group on the ACF surface is changed, resulting in an increase of the number of non-carbonyl (-C-O-C-) groups from 32.5% for pristine ACFs to 39.53% and 41.75% for ACFs treated with hydrogen peroxide and potassium hydroxide solutions, respectively. We discover that the NO gas sensitivity of the gas sensor...
214.

Yield enhancement of matrix precursor in short carbon fiber reinforced randomly oriented carbon/carbon composite

Thakur Sudesh Kumar Raunija, Sharad Chandra Sharma, Anil Verma 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2016, Vol.19 7 57-65 (9 pages)

Thakur Sudesh Kumar Raunija, Sharad Chandra Sharma, Anil Verma 저
...
- 3,000원
Isroaniso matrix precursor synthesized from commercially available petroleum pitch was stabilized in air. The influence of oxygen mass gain during stabilization on the yield of matrix precursor was studied. Additionally, the influence of pressure on the yield of the stabilized matrix precursor in a real system was studied. The fourier transform infrared spectrometry (FTIR), thermogravimetric analysis (TGA), yield, yield rate, and yield impact were used to check the effect of stabilization and...
215.

High-performance asymmetric supercapacitors based on polyoxometalate-graphene nanohybrids

MinHo Yang, Bong Gill Choi 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2016, Vol.18 15 84-89 (6 pages)

MinHo Yang, Bong Gill Choi 저
...
- 3,000원
216.

Photocatalytic degradation and antibacterial investigation of nano synthesized Ag₃VO₄ particles @PAN nanofibers

Prem Singh Saud, Zafar Khan Ghouri, Bishweshwar Pant, Taehee An, Joong Hee Lee, Mira Park, Hak-Yong Kim 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2016, Vol.18 5 30-36 (7 pages)

Prem Singh Saud, Zafar Khan Ghouri, Bishweshwar Pant, Taehee An, Joong Hee Lee, Mira Park, Hak-Yong Kim 저
...
- 3,000원
methylene blue. Their structural, optical, and photocatalytic properties have been studied by X-ray diffraction, transmission electron microscopy, field-emission scanning electron microscopy equipped with rapid energy dispersive analysis of X-ray, photoluminescence, and ultraviolet?visible spectroscopy. The characterization procedures revealed that the obtained material is PAN nanofibers decorated by Ag₃VO₄ nanoparticles. Photocatalytic degradation of methylene blue investigated in an aqueous...
217.

Effects of an inorganic ammonium salt treatment on the flame-retardant performance of lyocell fibers

Hyeong Gi Kim, Byong Chol Bai, Se Jin In, Young-Seak Lee 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2016, Vol.17 No.1 11 74-78 (5 pages)

Hyeong Gi Kim, Byong Chol Bai, Se Jin In, Young-Seak Lee 저
...
- 1,500원
218.

A review: methane capture by nanoporous carbon materials for automobiles

Pil-Seon Choi, Ji-Moon Jeong, Yong-Ki Choi, Myung-Seok Kim, Gi-Joo Shin, Soo-Jin Park 한국탄소학회 Carbon Letters 11 Pages

한국탄소학회 Carbon Letters 2016, Vol.17 No.1 3 18-28 (11 pages)

Pil-Seon Choi, Ji-Moon Jeong, Yong-Ki Choi, Myung-Seok Kim, Gi-Joo Shin, Soo-Jin Park 저
...
- 4,000원
Global warming is considered one of the great challenges of the twenty-first century. In order to reduce the ever-increasing amount of methane (CH4) released into the atmosphere, and thus its impact on global climate change, CH4 storage technologies are attracting significant research interest. CH4 storage processes are attracting technological interest, and methane is being applied as an alternative fuel for vehicles. CH4 storage involves many technologies, among which, adsorption processes...
219.

A review: synthesis and applications of graphene/chitosan nanocomposites

Hui Yuan, Long-Yue Meng, Soo-Jin Park 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2016, Vol.17 No.1 2 11-17 (7 pages)

Hui Yuan, Long-Yue Meng, Soo-Jin Park 저
...
- 3,000원
Recently, with continuous developments in the field of materials science, graphene oxide (GO) has emerged as a promising material with excellent electrical, thermal, mechanical, and optical properties, which play important roles in most fields. Researchers have achieved considerable progress with graphene. Chitosan (CS) is a natural polymer that has been studied intensively owing to its specific formation, high chemical resistance, and excellent physical properties. These outstanding properties...
220.

Carbon nanotubes synthesis using diffusion and premixed flame methods: a review

Garima Mittal, Vivek Dhand, Kyong Yop Rhee, Hyeon-Ju Kim and Dong Ho Jung 한국탄소학회 Carbon Letters 10 Pages

한국탄소학회 Carbon Letters 2015, Vol.16 No.1 1 1-10 (10 pages)

Garima Mittal, Vivek Dhand, Kyong Yop Rhee, Hyeon-Ju Kim and Dong Ho Jung 저
...
- 3,000원
In recent years, flame synthesis has absorbed a great deal of attention as a combustion method for the production of metal oxide nanoparticles, carbon nanotubes, and other related carbon nanostructures, over the existing conventional methods. Flame synthesis is an energyefficient, scalable, cost-effective, rapid and continuous process, where flame provides the necessary chemical species for the nucleation of carbon structures (feed stock or precursor) and the energy for the production of carbon...

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