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자동변속기용 가변 용량 베인 펌프의 파워 절감 효과 평가에 대한 실험적 연구
김철수(Chulsoo Kim),배철용(Chulyong Bae),김찬중(Chanjung Kim),김규식(Kyusik Kim),손태관(Taekwan Son) 한국자동차공학회 2014 한국 자동차공학회논문집 Vol.22 No.7
A variable displacement vane pump is possible to improve the fuel economy by varying the pump capacity with a vane mechanism according to the engine operating speed range and reducing its driving torque. In general the experimental evaluation of the vane pump for the transmission has been performed mainly not with the vehicle or dynamometer test rig but with component test rig due to the implementation and safety problems. In this paper, in order to evaluate the performance of the developed vane pump as well as the compatibility with other rotary and hydraulic components of the target transmission, the transmission dynamometer based test rig is implemented where the developed pump is built into it and then the variable pump capacity and effect of power reduction are investigated experimentally.
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김성희(Seonghee Kim),김철수(Chulsoo Kim),서창수(Changsoo Seo),김연태(Yontae Kim),김갑중(Garpchoong Kim) 한국SCM학회 2010 한국SCM학회지 Vol.10 No.1
The objectives of this research are to examine the effects of relationship characteristics between supplier and buyer on their collaborations and performances by the mediation effect of supply chain collaboration architecture consisted of information sharing, IT capability, and inventory replenishment. We empirically examine 99 dyads composed of buyers and suppliers sampled from a cosmetic industry in Korea. As a result, it is verified that successful collaboration to enhance supply chains’ performance relies on the supply chain collaboration architecture consisted of information sharing and IT capability except inventory replenishment. Accordingly, we found that supply chain collaboration architecture is necessary to success of collaboration and supply chain’s performance.
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하이브리드 자동차 시스템의 동적 거동 해석 시뮬레이터 개발
김동현(Donghyun Kim),이상문(Sangmoon Lee),김수훈(Suhoon Kim),최우석(Woosuk Choi),김철수(Chulsoo Kim),김현수(Hyunsoo Kim) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_2
Vehicle stability control for a hybrid electric vehicle is investigated using the front motor driving/regenerative braking control and electro-hydraulic brake(EHB) control. Performance of the vehicle stability control algorithm is evaluated using ADAMS and MATLAB Simulink co-simulation. The co-simulation program consists of 3 parts (1)ADAMS vehicle model, (2)MATLAB Simulink powertrain model and (3)Interface model. It is found from the simulation results that the direct yaw moment generated by the front motor control is able to provide the, improved stability compared with the vehicle performance without any control.
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Chon-Sik Kang,Young-Keun Cheong,Kyeong-Hoon Kim,Hag-Sin Kim,Young-Jin Kim,Kyong-Ho Kim,Jong-Chul Park,Choon-Ki Lee,Kwang-Geun Park,Ki-Hoon Park,Chulsoo Park 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
“Sooan”, a winter wheat(Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA. It was derived from the cross “Keumkang/Eunpa//Keumkang” during 1997. “Sooan” was evaluated as “Iksan319” in advance yield trial test in 2006. It was tested in the regional yield trial test between 2007 and 2009. “Sooan” is an awned, semi-dwarf and hard winter wheat, similar to “Keumkang” (check cultivar). The heading and maturing date of “Sooan” were similar to “Keumkang”. “Sooan” had similar test weight (817 g/L) and lower 1,000-grain weigh (43.7g) than “Keumkang” (817 g/L and 46.2g, respectively). “Sooan” showed resistance to winter hardiness and pre-harvest sprouting, which lower withering rate on the low ridge (0.2%) and rate of pre-harvest sprouting (0.2%) than “Keumkang” (9.2 and 25.8%, respectively). “Sooan” showed lower protein content (12.7%), SDS-sedimentation volume (42.0ml) and gluten content (10.5%) than “Keumkang” (13.1%, 57.8ml and 10.8%, respectively). It showed higher lightness (90.08) and lower redness (-1.11) and yellowness (8.80) in flour color than “Keumkang” (89.81, -1.15 and 9.46, respectively). “Sooan” showed higher lightness (81.34) of noodle dough sheet than “Keumkang” (80.28). “Sooan” exhibited lower hardness (3.84N) and similar springiness and cohesiveness of cooked noodles (0.91 and 0.65) compared to “Keumkang” (4.54N, 0.93, and 0.63, respectively). Average yield of “Sooan” in the regional adaptation yield trial test was 5.94 MT/ha in upland and 5.63 MT/ha in paddy field, which was 3% and 8% higher than those of “Keumkang” (579 MT/ha and 520 MT/ha, respectively).
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Chon-Sik Kang,Young-Keun Cheong,Kyeong-Hoon Kim,Hag-Sin Kim,Young-Jin Kim,Kyong-Ho Kim,Jong-Chul Park,Choon-Ki Lee,Kwang-Geun Park,Ki-Hoon Park,Chulsoo Park 한국육종학회 2014 한국육종학회 심포지엄 Vol.2014 No.07
“Joongmo2003”, a winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA. It was derived from the cross “SW86054/Keumkang” during 1997. “Joongmo2003” was evaluated as “Iksan318” in advance yield trial test in 2006. It was tested in the regional yield trial test between 2007 and 2009. Its heading date was April 24 in upland and April 21 in paddy filed conditions, which were two days earlier than those of the check cultivar Keumkang, respectively, and Maturing date was June 4 in upland and June 2 in paddy field, one or two days earlier than those of Keumkang, respectively. “Joongmo2003” showed resistance to winter hardiness and pre-harvest sprouting, which lower withering rate on the low ridge (0.3%) and rate of pre-harvest sprouting (18.5%) than “Keumkang” (9.2 and 25.8%, respectively).“Joongmo2003” showed similar protein content (13.2%), lower SDS-sedimentation volume (54.0ml) and higher gluten content (11.7%) than “Keumkang” (13.1%, 57.8ml and 10.8%, respectively). It showed higher lightness (89.85) of flour and noodle dough sheet than “Keumkang” (89.81 and 80.28, respectively). “Joongmo2003” exhibited similar hardness (3.84), springiness and cohesiveness of cooked noodles (0.92 and 0.63) compared to “Keumkang” (4.54N, 0.93, and 0.63, respectively). The average grain yield in the regional yield trial was 5.55MT/ha in upland and 4.85 MT/ha in paddy field, which were 4% and 7% lower than those of the check cultivar, Keumkang, respectively.
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