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231.

The effects of stacking sequence on the penetration-resistant behaviors of T800 carbon fiber composite plates under low-velocity impact loading

Furqan Ahmad, Jung-Wuk Hong, Heung Soap Choi, Soo-Jin Park, Myung Kyun Park 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2015, Vol.16 No.2 6 107-115 (9 pages)

Furqan Ahmad, Jung-Wuk Hong, Heung Soap Choi, Soo-Jin Park, Myung Kyun Park 저
...
- 3,000원
Impact damages induced by a low-velocity impact load on carbon fiber reinforced polymer (CFRP) composite plates fabricated with various stacking sequences were studied experimentally. The impact responses of the CFRP composite plates were significantly affected by the laminate stacking sequences. Three types of specimens, specifically quasi-isotropic, unidirectional, and cross-ply, were tested by a constant impact carrying the same impact energy level. An impact load of 3.44 kg, corresponding to...
232.

Influence of hot-pressing pressure on the densification of short-carbon-fiber-reinforced, randomly oriented carbon/carbon composite

Thakur Sudesh Kumar Raunija and Sharad Chandra Sharma 한국탄소학회 Carbon Letters 9 Pages

한국탄소학회 Carbon Letters 2015, Vol.16 No.1 4 25-33 (9 pages)

Thakur Sudesh Kumar Raunija and Sharad Chandra Sharma 저
...
- 3,000원
The prime objective of this research was to study the influence of hot-pressing pressure and matrix-to-reinforcement ratio on the densification of short-carbon-fiber-reinforced, randomly oriented carbon/carbon-composite. Secondary objectives included determination of the physical and mechanical properties of the resulting composite. The ‘hybrid carbon-fiberreinforced mesophase-pitch-derived carbon-matrix’ composite was fabricated by hot pressing. During hot pressing, pressure was varied from 5...
233.

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...
234.

A study on the fracture toughness of seawater-absorbed carbon nanotube/epoxy/basalt composites

Man Tae Kim, Kyong Yop Rhee, Hyun Ju Kim, Dong Ho Jung 한국탄소학회 Carbon Letters 3 Pages

한국탄소학회 Carbon Letters 2013, Vol.14 No.3 9 190-192 (3 pages)

Man Tae Kim, Kyong Yop Rhee, Hyun Ju Kim, Dong Ho Jung 저
- 1,500원
235.

Electrical and Thermal Properties of Poly(p-phenylene sulfide) Reduced Graphite Oxide Nanocomposites

Byung-Jae Chae, Do Hwan Kim, In-Soo Jeong, Jae Ryang Hahn, Bon-Cheol Ku 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2012, Vol.13 No.4 4 221-225 (5 pages)

Byung-Jae Chae, Do Hwan Kim, In-Soo Jeong, Jae Ryang Hahn, Bon-Cheol Ku 저
...
- 1,500원
236.

Synthesis and Characterization of Three-dimensional Polymer Prduced by Mutual Condensation of Ethylenediamine and C60

O.Vovk, Joong Kee Lee 한국탄소학회 Carbon Letters 7 Pages

한국탄소학회 Carbon Letters 2004, Vol.5 No.2 4 68-74 (7 pages)

O.Vovk, Joong Kee Lee 저
...
- 3,000원
237.

Preparartion of Novel Sorbents for Gas-phase Mercury Removal

Si Hyun Lee, Young Jun Rhim, Young Ok Park 한국탄소학회 Carbon Letters 5 Pages

한국탄소학회 Carbon Letters 2002, Vol.3 No.4 1 187-191 (5 pages)

Si Hyun Lee, Young Jun Rhim, Young Ok Park 저
...
- 1,500원
238.

The Effects of Paired Partners’ Proficiency Levels on Test-Takers’ Speaking Test Performance

Hyun IlSun 이화여자대학교 교과교육연구소 교과교육학연구 14 Pages

이화여자대학교 교과교육연구소 교과교육학연구 2017, 제 21권 2호 8 156-169 (14 pages)

Hyun IlSun 저
...
- 4,300원
This study attempted to explore the effects of partners' proficiency levels on test scores in paired English speaking test. Although the influence of interlocutor's effects on speaking test performance has been extensively researched in the previous studies, the findings have been inconsistent. The present study explored the effect of partners' proficiency levels on test scores in a paired speaking test. Participants included a total of 107 female adults and college students. Based on their...
239.

Forcing the World to fit Pre-Existing Prejudices: Why and How Global Education has Failed in the State of Georgia

Michelle Reidel, Scott Beck 이화여자대학교 교과교육연구소 교과교육학연구 12 Pages

이화여자대학교 교과교육연구소 교과교육학연구 2016, 제 20권 3호 4 196-207 (12 pages)

Michelle Reidel, Scott Beck 저
...
- 4,100원
This article examines the place of global citizenship education in schools by critically analyzing the official curriculum in one US state, Georgia. Data in the study includes Georgia Department of Education documentation about the implementation of the K-8 Georgia Performance Standards for Social Studies, particularly the 6th and 7th grade “world studies standards”. An interpretive document analysis is used to identify patterns of inclusion and exclusion which are then examined to assess...
240.

Examining the criterion-referenced assessment program in the domain of English language subjects of Korean secondary schools using argument-based approaches to validity

Youn-Hee Kim 이화여자대학교 교과교육연구소 교과교육학연구 14 Pages

이화여자대학교 교과교육연구소 교과교육학연구 2015, 제 19권 4호 11 1027-1040 (14 pages)

Youn-Hee Kim 저
...
- 4,300원
The Korean government’s move to implement criterion-referenced assessment in secondary schools has impacted the nation socially and politically as well as educationally. Since education policy is a matter not of only education itself but of a nation’s politics, culture and economy, the issue of criterion-referenced assessment in secondary schools has been hotly debated before and even during its implementation. With the government’s interest in implementing criterion-referenced assessment in...

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