http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
아웃도어용 바이오 폴리우레탄-ePTFE 멤브레인 직물의 영하 20도에서 특성 연구
서대경,이장훈,홍재근,권오경,김효정,Seo, Dae-kyung,Lee, Jang-hun,Hong, Jae-guen,Kweon, Oh-kyung,Kim, Hyo-jung 한국섬유공학회 2018 한국섬유공학회지 Vol.55 No.4
This paper intends to study the characteristics of hybrid film fabrics composed of a $5-20{\mu}m$ bio-polyurethane layer and an ePTFE layer in low-temperature conditions. Bio-polyurethane resin was coated on the ePTFE fabric using direct coating methods. The water pressure properties increased with increasing polyurethane layer thickness, while water vapor permeability decreased. In comparison with ePTFE laminated fabric, hybrid film laminated fabrics are effective in enhancing mechanical properties (tensile strength, tear strength) and heat retention. In addition, the decrease in overall properties with respect to the flex resistance under low temperature was offset by the coated bio-polyurethane layer.
랜덤상태의 E-유리 단섬유 강화 불포화 폴리에스터 기반 수지 복합재료의 물성 - E-유리 단섬유의 길이와 함량 및 적층수의 영향 -
박진명,박영광,이영희,서대경,이장훈,김한도,Park, Jin-Myung,Park, Young-Gwang,Lee, Young-Hee,Seo, Dae-Kyung,Lee, Jang-Hun,Kim, Han-Do 한국염색가공학회 2015 韓國染色加工學會誌 Vol.27 No.3
To develop automobile parts, the unsaturated polyester based matrix resin(PR)/reinforcement(randomly oriented chopped E-glass fiber, GF) composites were prepared using sheet molding compound(SMC) compression molding. The effects of GF length(0.5, 1.0 1.5 and 2.0inch)/content (15, 20, 25, 30wt%) and number of ply(3, 4 and 5) on the specific gravity and mechanical properties of PR/GF composites were investigated in this study. The optimum length of GF was found to be about 1.0inch for achieving improved mechanical properties(tensile strength and initial modulus). The tensile strength and initial modulus of composites increased with increasing GF content up to 30wt%, which is favorable content range for SMC. The specific gravity, tensile strength/initial modulus, compressive strength/modulus, flexural strength/modulus and shear strength increased with increasing the number of ply up to 5, which is the maximum number of ply range for SMC. The effectiveness of ply number increased in the flexural strength > shear strength > compressive strength > tensile strength.
Circuit Training이 비만중년여성의 여성호르몬, 혈중지질에 미치는 영향
신군수(Koun-S00 SHIN),김용재(Young-Jae KIM),김민섭(Min-Sub KIM),서대경(Dae-Kyung SEO),오선옥(Sean-Ok OH),김자봉(Ja-Bong KIM) 한국수산해양교육학회 2014 水産海洋敎育硏究 Vol.26 No.6
This study is supposed to offer data related to whether circulation training(aerobic and anaerobic exercise) focused on overweight women has positive effects on reducing fat and increasing muscles for middle-aged women. This study aims to investigate how the circulation training effect overweight middle -aged womens female hormone, blood lipid, which offers basic data of exercise program to keep the overweight middle-aged women healthy. Participants for the study are 30 to 45-year-women who were willing to take part in a M Sports Diet Program in G gu, B metropolitan city, did not have any disease. They were 29 overweight women and showed more than 30% of body fat percentage. Female hormone, blood lipid were measured twice before and in 12 weeks after exercise. The results obtained from this study are given as in the following. Although estrogen has significantly increased after the circulation training, there was no meaningful difference from the control group. After 12-weeks-circulation training, even though there were no meaningful differences. before the training, the circulation training group was significantly higher than the control group. Although TC has significantly decreased after the circulation training, there was no meaningful difference from the control group. the circulation training group was significantly lower than the control group. Even though TG was no significantly decreased after the circulation training, there was no significantly difference from the control group. the circulation training group was significantly lower than the control group. Even though HDL-C has significantly increased after the circulation training, there was no meaningful difference from the control group. the circulation training group was significantly higher than the control group. Even though LDL-C has significantly decreased after the circulation training, there was no significantly difference from the control group. the circulation training group was significantly lower than the control group.