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381.

Assessment of Teaching Aptitude of Preservice Teachers Enrolled in University-Based Teacher Credential Programs in South Korea: Providing Diagnostic Information Based on a Cognitive Diagnostic Assessment Framework

Yi Hyun Sook, Park Sejin 한국교육학회 교육학연구 27 Pages

한국교육학회 교육학연구 2022, 60권 3호 1 1-27 (27 pages)

Yi Hyun Sook, Park Sejin 저
...
- 5,600원
Teacher education programs must provide opportunities for student teachers to explore their teaching aptitude early in the program and help them to strengthen their areas of weaknesses to prepare them for the realities of teaching. This study employed the cognitive diagnostic assessment framework, which is known to be effective in providing profiles of multidimensional and inter-related attributes, such as the teaching aptitude. The attribute mastery profiles of 1,111 participants from 6 South...
382.

수업 관찰 도구 활용 국내 실태에 관한 문헌 분석

서희주, 김지현 한국교육학회 교육학연구 33 Pages

한국교육학회 교육학연구 2022, 60권 1호 3 59-91 (33 pages)

서희주, 김지현 저
...
- 6,200원
학교는 학생들에게 좋은 수업을 제공할 의무가 있다. 어떤 수업이 좋은 수업인지 정의하고 이에 따라 수업을 분석하기 위해 많은 연구자들이 다양한 수업 관찰 도구를 활용해왔다. 그러나 어떠한 수업 관찰 도구가 빈번하게 쓰였고 이러한 도구들은 어떠한 특징을 가지고 있는지, 또 이러한 도구들이 어떠한 맥락에서 어떠한 목적으로 사용되었는지를 종합적으로 검토한 연구는 부족한 실정이다. 이는 수업 관찰 도구가 가진 중요성과 유용함에 비추어 보았을 때 우려되는 점이다. 따라서 본 연구는 국내 수업 관찰 도구에 관한 문헌을...
383.

학업동기 프로파일의 잠재적 변화: 학업성취와의 관계

신이나, 손원숙 한국교육학회 교육학연구 23 Pages

한국교육학회 교육학연구 2016, 54권 3호 7 177-199 (23 pages)

신이나, 손원숙 저
...
- 5,200원
본 연구의 목적은 자기결정성 이론에 근거하여 학업동기 프로파일의 잠재적 변화를 탐색하는 것이 며, 다차원적 특성을 지닌 학업동기의 종단적 변화를 분석하기 위해서 잠재전이분석(latent transition analysis)이 실시되었다. 연구대상은 한국교육종단연구(Korea Education Longitudinal Study; KELS) 의 2, 3차 연구에 연속적으로 참여한 총 5,692명(남자 2,941, 여자 2,751)의 중학생이다. 연구결과 중학 교 2-3학년의 학업동기 프로파일은 자율동기와 내사된 조절이 평균이상의 수준을 나타내는 ‘자율동기 형’, 모든 학업동기가...
384.

The Development of a Teaching and Learning Model for Mobile-based Collaborative Learning

Chang Woo Nam, Seonyoung Jang 한국교육학회 교육학연구 24 Pages

한국교육학회 교육학연구 2016, 54권 2호 13 373-396 (24 pages)

Chang Woo Nam, Seonyoung Jang 저
...
- 5,300원
The purpose of this study is to develop a teaching and learning model for collaborative learning in mobile learning (m-learning) environments. For this purpose, this study utilized a literature review and a three-round Delphi method that employed three expert panels to develop the teaching and learning model. The teaching and learning model developed in this study includes six primary phases: (1) providing orientation of mobile-based collaborative learning, (2) guiding strategies for improving...
385.

Applications of carbon-based materials in solid phase micro-extraction: a review

Jian Guo, Soo-Jin Park, Long-Yue Meng, Xinghua Jin 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2017, Vol.24 2 10-17 (8 pages)

Jian Guo, Soo-Jin Park, Long-Yue Meng, Xinghua Jin 저
...
- 3,000원
With continuous development in the field of sample preparation technology, solid phase micro-extraction (SPME) has been widely used in analytical chemistry for high extraction efficiency and convenient operation. Different materials lead to different extraction results. Among existing materials, carbon-based materials are still attracting attention from scientists due to their excellent physical and chemical properties as well as their modifiable surfaces, which could enhance the adsorption...
386.

Three-dimensional porous graphene materials for environmental applications

Muruganantham Rethinasabapathy, Sung-Min Kang, Sung-Chan Jang, Yun Suk Huh 한국탄소학회 Carbon Letters 13 Pages

한국탄소학회 Carbon Letters 2017, Vol.22 1 1-13 (13 pages)

Muruganantham Rethinasabapathy, Sung-Min Kang, Sung-Chan Jang, Yun Suk Huh 저
...
- 4,200원
Porous materials play a vital role in science and technology. The ability to control their pore structures at the atomic, molecular, and nanometer scales enable interactions with atoms, ions and molecules to occur throughout the bulk of the material, for practical applications. Three-dimensional (3D) porous carbon-based materials (e.g., graphene aerogels/hydrogels, sponges and foams) made of graphene or graphene oxide-based networks have attracted considerable attention because they offer low...
387.

A facile green reduction of graphene oxide using Annona squamosa leaf extract

Basavaiah Chandu, Venkata Sai Sriram Mosali, Bhanu Mullamuri, Hari Babu Bollikolla 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2017, Vol.21 9 74-80 (7 pages)

Basavaiah Chandu, Venkata Sai Sriram Mosali, Bhanu Mullamuri, Hari Babu Bollikolla 저
...
- 3,000원
A highly facile and eco-friendly green synthesis of Annona squamosa (custard apple) leaf extract reduced graphene oxide (CRG) nanosheets was achieved by the reduction of graphene oxide (GO). The as-prepared CRG was characterized with X-ray diffraction (XRD), transmission electron microscope (TEM), Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible (UV-Vis), X-ray photoelectron spectroscopy (XPS) and Raman spectroscopic techniques. Removal of oxygen containing moieties from the...
388.

The effect of the spinning conditions on the structure of mesophase pitch-based carbon fibers by Taguchi method

Zhao Jiang, Ting Ouyang, Xiangdong Yao, Youqing Fei 한국탄소학회 Carbon Letters 10 Pages

한국탄소학회 Carbon Letters 2016, Vol.19 11 89-98 (10 pages)

Zhao Jiang, Ting Ouyang, Xiangdong Yao, Youqing Fei 저
...
- 3,000원
Taguchi’s experimental design was employed in the melt spinning of molten mesophase pitch to produce carbon fibers. The textures of the obtained carbon fibers were radial with varied crack angles, as observed by scanning electron microscopy and polarized optical imaging. The diameter, crack angle, preferred orientation, and tensile modulus of the produced samples were examined to investigate the influence of four spinning variables. The relative importance of the variables has been emphasized...
389.

Phenylethynyl-terminated polyimide, exfoliated graphite nanoplatelets, and the composites: an overview

Donghwan Cho, Lawrence T. Drzal 한국탄소학회 Carbon Letters 11 Pages

한국탄소학회 Carbon Letters 2016, Vol.19 1 1-11 (11 pages)

Donghwan Cho, Lawrence T. Drzal 저
...
- 4,000원
In efforts to characterize and understand the properties and processing of phenylethynyl-terminated imide (LaRC PETI-5, simply referred to as PETI-5) oligomers and polymers as a high-temperature sizing material for carbon fiber-reinforced polymer matrix composites, PETI-5 imidization and thermal curing behaviors have been extensively investigated based on the phenylethynyl end-group reaction. These studies are reviewed here. In addition, the use of PETI-5 to enhance interfacial adhesion between...
390.

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
Well-dispersed Ag₃VO₄ nanoparticles @polyacrylonitrile (PAN) nanofibers were synthesized by an easily controlled, template-free method as a photo-catalyst for the degradation of 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...

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