http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
솔레노이드 밸브를 이용한 직접분사식 디젤기관의 분사율 제어 및 배기 저감에 관한 연구
채재우(J.O.Chae),이상만(S.M.Lee),황재원(J.W.Hwang),양이진(I.J.Yang),장석채(S.C.Chang),갈한주(H.J.Kal),정영식(Y.S.Jeong),A.A.Martychenko(A.A.Martychenko),Balin Andrei(Balin Andrei) 한국자동차공학회 1997 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1997 No.6_1
A very fast solenoid valve has been developed to modulate the pressure of fuel pressure in the injection system of a D.I. Diesel engine. The working process of solenoid has been analyzed and calculated for each characteristic period. The modulated pressure by solenoid valve varies needle lifting process and therefore cause different injection rate. An investigation into the application of electronically controlled solenoid valve to reduce emissions of NOx and soot has been carried out in both conventional and newly designed solenoid valve actuated injection system. Conventional and electronically controlled comparisons of emission products were made under 1500 rpm engine speed, 3/4 load conditions. The outlook for the use of electronically controlled fuel injection technology is described in the light of the results obtained.<br/>
비선형 변형경로를 고려한 판재성형 한계곡선에 대한 수치적 비교 연구
김진학(J. H. Kim),임재혁(J. H. Lim),조인영(I. Y. Cho),양진아(J. A. Yang),정완진(W. J. Chung) 한국소성가공학회 2013 금형가공 심포지엄 Vol.2013 No.9
For the nonlinear strain path, traditional strain based FLD, linear FLD, reveals inaccuracies in the formability prediction. On the other hand, forming limit stress diagram, FLSD, shows superiority in formability prediction for nonlinear strain path. Nevertheless, the use of FLSD is very limited because of low sensitivity near forming limit and difficulty of understanding. Recently, effective plastic strain based FLD, EPS FLD, was proposed and supposed to get wider acceptance in the near future. In the present study, linear FLD and EPS FLD were compared for simulation of square cup deep drawing. In making of EPS FLD, numerical oscillations in deformation from simulation yield impractical oscillatory deformation paths. In order to obtain continuous and non-oscillatory deformation paths, a linear regression technique was utilized. In the comparison, EPS FLD shows different formability from linear FLD numerically. Experimental verification is strongly required to assess the suitability of EPS FLD definitely.
수종 화본과 야초류및 남방형화본과 목초류의 생육특성에 관한 연구
김동암,양종성 ( D . A . Kim,J . S . Yang ) 한국축산학회 1975 한국축산학회지 Vol.17 No.5
To evaluate the growth characteristics and seed production, two imported warm season grass and seven native grass species were divided into two groups, tall and mid-grass and grown under pot and field conditions. The results obtained are as follows; (1) A range of 25 to 30 days was required from seeding to 50% emergence of the; grass species when sown in spring. The establishment percentage of native grass species showed a range of 6.3 to 19.5% and that of imported grass species was 22.7 to 23.2%. (2) Of the grass species, Pennisetum japonica, Andropogon micranthus and the imported grass species were the highest in seedling height. In tillering characters, Andropogon micranthus showed the highest, Spodiopogon cotulifer, the lowest and the other species found to be medium. (3) It was found that Panicum coloratura was one of the eariest heading species. The heading of Panicum coloratura was observed at the end of July, but that of Paspalum dilatatum and P. thunbergii was recorded at the beginning of August and the other species appear to be more later. (4) Calmagrostis arundinacea was one of the earliest starting species sprouting on 15th of March, Pennisetum japonica was the latest species and the other species found to be medium. Calmagrostis arundinacea showed the longest growing characteristics, 246 days, intermediate species were Paspalum dilatatum, Panicum and Andropogon micranthus, and Pennisetum japonica found to be the shortest. (5) In the percentage of germination, Pennisetum japonica and Arundinella hirta were the highest, 12.0% and 78.6%, but Spodiopogon sibiricus and S. cotulifer showed the lowest, 15.3% and 11.3% respectively. (6) In seed production, Arundinella hirta and Spodiopogon cotulifer gave a satisfactory performance, 126 ㎏ per 10a, but all other species were less, ranging 58 to 86 ㎏ per 10a.
노인 택시운송업 종사자에 운전정보와 인지능력, 안전운전행동에 관한 상관성 연구
이혜진(H. J. Lee),양영애(Y.A. Yang) 한국재활복지공학회 2015 한국재활복지공학회 학술대회논문집 Vol.2015 No.11
The purpose of this research is to confirm the actual status of driving by elders working in taxi service and to be used as a basic material to study elders’ safe vehicle driving in the future. This research conducted a cognitive assessment (MoCA-K) and safe driving behavior assessment for 32 elders working in a taxi company located in P-city. According to the results, there was a significant correlation among elder taxi drivers’ driving information, MoCA-K, and K-SDBM, through which the research could identify the items related to elder taxi drivers’ safe driving
박강호,최낙진,양우석,이홍열,이상균,최창억,김종대,Park, K.H.,Choi, N.J.,Yang, W.S.,Lee, H.Y.,Lee, S.K.,Choi, C.A.,Kim, J.D. 한국전자통신연구원 2009 전자통신동향분석 Vol.24 No.6
지능형 센서 네트워크 기반의 첨단 IT 시스템을 이용한 실시간 환경 관리 및 보안 서비스를 제공하는 스마트 빌딩에서 다양한 빌딩내 환경 및 보안 정보를 감지하여 실시간으로 전달, 판단, 처리 및 제어할 수 있는 지능형 센서노드 플랫폼의 핵심 부품인 각종 센서의 제품 기술과 산업 현황을 분석하고 관련 센서 기술 및 산업의 미래 전망을 예측하였다.
김형환,원희선,오병택,이상민,박경현,이지현,양경아,이원재,허성진,정문영,김원영,전성익,최완,Kim, H.H.,Won, H.S.,Oh, B.T.,Lee, S.M.,Park, K.H.,Lee, J.H.,Yang, K.A.,Lee, W.J.,Hur, S.J.,Chung, M.Y.,Kim, W.Y.,Jun, S.I.,Choi, W. 한국전자통신연구원 2009 전자통신동향분석 Vol.24 No.4
최근 국내 소프트웨어 시장에서 소프트웨어를 서비스로 사용하는 SaaS에 대한 관심이 부각되고 있다. 본 고에서는 SaaS의 정의와 개념을 살펴보고 핵심기능인 멀티테넌시를 구현하기 위한 참조모델을 소개한다. 또한, 해외 및 국내의 개발 사례를 알아보고 국가 플랫폼 과제의 일환으로 2009년부터 한국전자통신연구원에서 수행하는 SaaS 플랫폼 개발과제를 소개하며 앞으로의 SaaS 플랫폼 개발을 전망해 본다.