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151.

Overlook of current chemical vapor deposition-grown large single-crystal graphene domains

Kyung Tae Park, Taehoon Kim, Chong Rae Park 한국탄소학회 Carbon Letters 11 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.3 1 151-161 (11 pages)

Kyung Tae Park, Taehoon Kim, Chong Rae Park 저
...
- 4,000원
Exceptional progress has been made with chemical vapor deposition (CVD) of graphene in the past few years. Not only has good monolayer growth of graphene been achieved, but large-area synthesis of graphene sheets has been successful too. However, the polycrystalline nature of CVD graphene is hampering further progress as graphene property degrades due to presence of grain boundaries. This review will cover factors that affect nucleation of graphene and how other scientists sought to obtain large...
152.

Study on lowering the percolation threshold of carbon nanotube-filled conductive polypropylene composites

Seung Bin Park, Moo Sung Lee, Min Park 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.2 8 117-124 (8 pages)

Seung Bin Park, Moo Sung Lee, Min Park 저
...
- 3,000원
Conductive polymer composites (CPCs) consist of a polymeric matrix and a conductive filler, for example, carbon black, carbon fibers, graphite or carbon nanotubes (CNTs). The critical amount of the electrically conductive filler necessary to build up a continuous conductive network, and accordingly, to make the material conductive; is referred to as the percolation threshold. From technical and economical viewpoints, it is desirable to decrease the conductive- filler percolation-threshold as...
153.

Preparation and characterization of microporous NaOH activated carbons from hydrofluoric acid leached rice husk and its application for lead(II) adsorption

A. F. Hassan, A. M. Youssef 한국탄소학회 Carbon Letters 10 Pages

한국탄소학회 Carbon Letters 2014, Vol.15 No.1 8 57-66 (10 pages)

A. F. Hassan, A. M. Youssef 저
...
- 3,000원
Three activated carbons (ACs) were prepared using NaOH (N) as an activating agent. Hydrofluoric acid pre-leached rice husk was used as a precursor. After leaching, the precursor was washed with distilled water, dried, crushed, and then sieved; a size fraction of 0.3-0.5 mm was selected for carbonization in the absence of air at 600°C. The carbonization product (LC) was mixed with NaOH at ratios of 1:2, 1:3, and 1:4 (wt of LC: wt of NaOH) and the produced ACs after activation at 800°C were...
154.

A Low-Density Graphite-Polymer Composite as a Bipolar Plate for Proton Exchange Membrane Fuel Cells

S.R.Dhakate, S.SharmaandR.B.Mathur 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2013, Vol.14 No.1 6 40-44 (5 pages)

S.R.Dhakate, S.SharmaandR.B.Mathur 저
- 1,500원
155.

Application and evaluation of boron nitride-assisted liquid silicon infiltration for preparing Cf/SiC composites

김진훈, EuigyungJeong, 김세영, 이영식 한국탄소학회 Carbon Letters 4 Pages

한국탄소학회 Carbon Letters 2011, Vol.12 No.2 10 116-119 (4 pages)

김진훈, EuigyungJeong, 김세영, 이영식 저
...
- 1,500원
156.

Polymerization and Thermal Characteristics of Acrylonitrile/Dicyclohexy lammonium2-Cyanoacrylate Copolymers for Carbon Fiber Precursors

김기영, 박우리, 정영식, 신동근, 한진욱 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2011, Vol.12 No.1 6 31-38 (8 pages)

김기영, 박우리, 정영식, 신동근, 한진욱 저
...
- 3,000원
157.

Carbon Doping of TiO2 for Visible Light Photo Catalysis - A review

K. Palanivelu, Ji Sun Im, Young-Seak Lee 한국탄소학회 Carbon Letters 11 Pages

한국탄소학회 Carbon Letters 2007, Vol.8 No.3 6 214-224 (11 pages)

K. Palanivelu, Ji Sun Im, Young-Seak Lee 저
...
- 4,000원
158.

Level of Resident Care Need and Staffing by Size of Nursing Home under the Public Long-term Care Insurance in South Korea

Bae Sung-Heui, Kim Hongsoo 한국노인간호학회 노인간호학회지 9 Pages

한국노인간호학회 노인간호학회지 2020, 제 22권 제 1호 1 1-9 (9 pages)

Bae Sung-Heui, Kim Hongsoo 저
...
- 3,000원
Purpose: Formal long-term care in nursing homes became a popular means of caring for frail elders in South Korea. This universal long-term care (LTC) insurance for elders was introduced in 2008. The aim of this study was to provide information on the extent of and variations in residents’ care needs and nursing staffing characteristics across nursing homes. Methods: This was a population-based secondary analysis of a large national survey study involving 1,472 older residents in 92 nursing...
159.

The Effects of Consciousness-raising Tasks on EFL Learners Grammar Acquisition and Flow

Ma Jee Hyun, Cho Young Ah 이화여자대학교 교과교육연구소 교과교육학연구 10 Pages

이화여자대학교 교과교육연구소 교과교육학연구 2019, 제 23권 1호 2 16-25 (10 pages)

Ma Jee Hyun, Cho Young Ah 저
...
- 3,000원
The current study examines the effects of consciousness-raising tasks on L2 learners grammar competence and their flow experiences. The participants consisted of 77 Korean college students who were assigned to two consciousness-raising task groups the hypothesis building/checking and classification and one control group. The study used a background questionnaire, pre-, post-, and delayed English grammar tests, and also pre-, and post-flow perceptions questionnaires. The results indicate that...
160.

Computer-based Language Testing: Potential and Pitfalls

Shin Sang-Keun 이화여자대학교 교과교육연구소 교과교육학연구 7 Pages

이화여자대학교 교과교육연구소 교과교육학연구 2018, 제 22권 3호 5 219-225 (7 pages)

Shin Sang-Keun 저
...
- 3,000원
The computer is positioning itself as the primary base for performing language assessment. Unlike earlier studies that focused on the comparability of paper-and-pencil and computer-based testing, more recent studies on computer-based assessment are actively examining how the testing method may affect performance. This paper briefly highlights some seminal studies on computer-based language assessment, and then looks at some major recent research trends. This paper goes on to introduce...

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