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31.

Effect of moisture absorption on damping and dynamic stiffness of carbon fiber/epoxy composites

Zai. Behzad Ahmed, Park. M.K., Choi. H.S., Mehboob. Hassan, Ali. Rashid 대한기계학회 Journal of mechanical science and technology 7 Pages

대한기계학회 Journal of mechanical science and technology 2009, Vol.23 No.11 2998-3004 (7 pages)

Zai. Behzad Ahmed, Park. M.K., Choi. H.S., Mehboob. Hassan, Ali. Rashid 저

이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
- 무료
32.

Relationship Between Exothermic Heat and Carbon Contents of Pitch-based Carbon Fiber

Jae Young Lee, Jong Hyun Oh, Xiao Ping Yang, Seung Kon Ryu 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2009, Vol.10 No.3 5 202-207 (6 pages)

Jae Young Lee, Jong Hyun Oh, Xiao Ping Yang, Seung Kon Ryu 저
- 3,000원
33.

Influence of laminated orientation on the mechanical and thermal characteristics of carbon-fiber reinforced plastics

Hee-Jae Shin, Lee-Ku Kwac, Min-Sang Lee, Hong-Gun Kim 한국탄소학회 Carbon Letters 6 Pages

한국탄소학회 Carbon Letters 2015, Vol.16 No.4 3 241-246 (6 pages)

Hee-Jae Shin, Lee-Ku Kwac, Min-Sang Lee, Hong-Gun Kim 저
...
- 3,000원
In this context, carbon fiber-reinforced plastic (CFRP) composite materials are being extensively used. However, laminated CFRPs develop faults during impact because CFRPs are composed of mixed carbon fiber and epoxy. Moreover, their fracturing behavior is very complicated and difficult to interpret. In this paper, the effect of the direction of lamination in CFRP on the absorbed impact energy and impact strength were evaluated, including symmetric ply (0°/0°, ?15°/+15°, ?30°/+30°,...
34.

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...
35.

Mechanical and electrical properties of cement paste incorporated with pitch-based carbon fiber

Inkyu Rhee, Jin Hee Kim, Sang Hee Park, Sungho Lee, Bong Ryeul Ryu, Yoong Ahm Kim 한국탄소학회 Carbon Letters 8 Pages

한국탄소학회 Carbon Letters 2017, Vol.23 4 22-29 (8 pages)

Inkyu Rhee, Jin Hee Kim, Sang Hee Park, Sungho Lee, Bong Ryeul Ryu, Yoong Ahm Kim 저
...
- 3,000원
The compressive strength and electrical resistance of pitch-based carbon fiber (CF) in cementitious materials are explored to determine the feasibility of its use as a functional material in construction. The most widely used CFs are manufactured from polyacrylonitrile (PAN-based CF). Alternatively, short CFs are obtained in an economical way using pitch as a precursor in a melt-blown process (pitch-based CF), which is cheaper and more eco-friendly method because this pitch-based CF is basically...
36.

Tribological properties of carbon fiber-reinforced aluminum composites processed by spark plasma sintering

Ki Hoon Jung, Seungjin Nam, Sung-Soo Kang, Bon-Cheol Ku, Yun Hyuk Bang, Jun Yeon Hwang 한국탄소학회 Carbon Letters 4 Pages

한국탄소학회 Carbon Letters 2017, Vol.21 14 103-106 (4 pages)

Ki Hoon Jung, Seungjin Nam, Sung-Soo Kang, Bon-Cheol Ku, Yun Hyuk Bang, Jun Yeon Hwang 저
...
- 1,500원
The development of light-weight and high-strength materials have gained attention to meet the evergrowing demands for safer and fuel-efficient automobiles. Thus, the importance and applications of composite materials are gradually increasing [1]. In the field of metal-matrix composite manufacturing, reinforcing agents are added to the metal matrix in the form of powders, whiskers, and fibers to improve the mechanical properties of metals [2]. Fibers have been used since the 1950s as structural...
37.

Micro-Fiber 흔라네 의한 준설해성점토의 보강효과

박영목, 우문정, 허상목, 정연인 한국지반공학회 韓國地盤工學會論文集 7 Pages

한국지반공학회 韓國地盤工學會論文集 2003, Vol.19 No.4 75-81 (7 pages)

박영목, 우문정, 허상목, 정연인 저

이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
- 무료
초연약 고소성의 준설해성점토를 보강하기 위하여 Micro-Fiber(MF)재를 혼합하여 다양한 실내시험을 수행하였다. 준설점토의 함수비를 3종으로 조정하고 각각의 시료에 MF를 길이와 혼합율을 변화시키면서 일축압축 및 삼축압축 시험을 통하여 보강특성을 검토하였다. 또한, 양생일수벽로 강도증가 경향을 평가하였으며, 폐석회(Waste Lime, WL)의 추가혼합이 보강기능을 증대시키는지 여부를 검토하였다. 실험결과, MF를 혼합함에 따라 준설점토의 강도가 자연함수비에 무관하게 약 50% 증가하였으며, MF의 길이가 길수록 보강효과가...
38.

Comparison of multifidus and external oblique abdominis activity in standing position according to the contraction patterns of the gluteus maximus

Hyuk-Soon Choi, Su-Young Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages

물리치료재활과학회 Physical Therapy Rehabilitation Science 2016, 제 5권 제 1호 7 40-46 (7 pages)

Hyuk-Soon Choi, Su-Young Lee 저
...
- 3,000원
Objective: The purpose of this study was to examine the effect on multifidus and external oblique abdominis muscle activation during hip contraction of three types (concentric, isometric, eccentric) in standing position. Design: Cross-sectional study. Methods: Twenty healthy adult men volunteered to participate in this study. Muscle activation was recorded from gluteus maximus, both multifidus, and both external oblique abdominis by surface electromyography (EMG) while holding position in the...
39.

Ultrasound imaging for age-related differences of lower extremity muscle architecture

Min Kyu Kim, Young Jun Ko, Hwang Jae Lee, Hyun Geun Ha, Wan Hee Lee 물리치료재활과학회 Physical Therapy Rehabilitation Science 6 Pages

물리치료재활과학회 Physical Therapy Rehabilitation Science 2015, 제 4권 제 1호 7 38-43 (6 pages)

Min Kyu Kim, Young Jun Ko, Hwang Jae Lee, Hyun Geun Ha, Wan Hee Lee 저
...
- 3,000원
Objective: To investigate and compare the size of the rectus femoris (RF), tibialis anterior (TA), and medial gastrocnemius (GMM) using ultrasound (US) imaging in young, elderly, and very elderly groups. Design: Cross sectional study. Methods: This study consisted of 25 young (age 20 years), 24 elderly (age 65-74 years), and 25 very elderly (age 75-90 years) people with no physical dysfunctions. The cross sectional area (CSAs) of the RF and muscle thickness of the TA and GMM were measured at...
40.

The use of laser Doppler blood flow to assess the effect of acute administration of vitamin D on micro vascular endothelial function in people with diabetes

Jerrold Petrofsky, Faris Alshammari, Iman Akef Khowailed, Riya Lodha, Pooja Deshpande, Praveen Rajaram, Mahendra Gaikwad, Vidhi Vadera 물리치료재활과학회 Physical Therapy Rehabilitation Science 7 Pages

물리치료재활과학회 Physical Therapy Rehabilitation Science 2013, 제 2권 제 2호 1 63-69 (7 pages)

Jerrold Petrofsky, Faris Alshammari, Iman Akef Khowailed, Riya Lodha, Pooja Deshpande, Praveen Rajaram, Mahendra Gaikwad, Vidhi Vadera 저
...
- 3,000원
Objective: To assess the effect of vitamin D administration on the skin blood flow response to occlusion and heat. Design: Cross-sectional study. Methods: Twenty age matched subjects; 10 who had diabetes and 10 who were controls were administered 4,000 IU of vitamin D3 for 3 weeks at breakfast. The function of the endothelial cells was evaluated in 2 ways; first, the response to 4 minutes of vascular occlusion of the skin was measured with a laser Doppler flow meter. Second, the skin blood flow...

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