http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
혈록관계와 (血綠關係) 유전적 군이 포함된 혼합모형에 의한 젖소 종모우의 육종가 추정
이광전(K . J . Lee),양영목(Y . M . Yang),양희성(H . S . Yang) 한국축산학회 1989 한국축산학회지 Vol.31 No.11
This study was undertaken to estimate dairy sires` breeding value by BLUP procedures with additive relationship and genetic group. The data used consisted of calving during the years 1976 to 1987 on Holstein cows in 29 dairy farms of Kyung-Kee, Chung-Nam, Kyung-Nam, Kyung-Buk, and Kang-Won Provinces. In total there were 1129 records and 43 sires. All records were standardized to 305-days, 2x milking and mature-equivalent by USDA-DHIA correction factors. The results obtained were as follows. 1. The variance components of sire, herd-year-season* sire, and error for milk yield by Henderson Method III were 121300.80445, 126877.24500, and 1575221.08369, respectively. The heritability for milk yield was 0.26. 2. The BLUE values of H.Y.S. ranged widely from 815.437㎏ to 6240.884㎏, the herd number 29 was the highest rank. 3. The breeding value of sires ranged widely from-529.401㎏ to +4459.008㎏. 4. The sires of registered number 1479300, 1625389 and 10395 were the highest rank of the genetic group Ⅰ, Ⅱ and Ⅲ respectively. 5. The sires of registered number 1625389, 1597697 and 320576 were the first, the second, and the third rank in all, respectively.
한국형 EMS NA Prototype 어플리케이션 개발
윤상윤(S.-Y. Yun),이욱화(U.-W. Lee),조윤성(Y.-S. Cho),신철호(C.-H. Shin),이진(J. Lee),신만철(M.-C. Shin),김명의(M.-E. Kim),양희성(H.-S. Yang),이병하(B.-H. Lee),허성일(S.-I. Hur),김선구(S.-K. Kim) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
본 논문에서는 한국형 에너지관리 시스템(energy management system, EMS)의 프로토타입(prototype) 네트웍 해석 프로그램의 개발에 대해 요약하였다. 2005년부터 수행되어온 한국형 EMS 개발은 2008년 베이스라인(baseline) 개발을 완료한 상태이며 올해부터 프로토타입 개발 및 실증시험을 수행중에 있다. 한국형 EMS 프로토타입 네트웍 해석 소프트웨어는 베이스라인 개발 프로그램의 기능 보강과 더불어 상정사고 해석(contingency analysis), 전압 계획(voltage scheduler) 및 송전가능용량계산(transmission transfer capability)등으로 구성되어 있다. 본 논문에서는 각 개발 프로그램의 개략적 기능을 소개하고 전체적인 프로토타입 시스템의 구성에 대해 요약하였다.
박용디젤기관용 SCR 시스템의 NOx 정화율에 관한 연구
최재성(J.S.Choi),조권희(K.H.Cho),이재현(J.H.Lee),이진욱(J.W.Lee),장성환(S.H.Jang),김정곤(J.G.Kim),양희성(H.S.Yang),고준호(J.H.Ko),박준영(K.Y.Park) 한국마린엔지니어링학회 2003 한국마린엔지니어링학회 학술대회 논문집 Vol.2003 No.-
A diesel engine is utilized widely for industry and shipping because of its efficiency. However, diesel engine emits relatively high concentrated air pollution matters, which will become a competitive factor in the shipping as well as industry. In fact, the regulation has been already implemented from the year 2000. Nitrogen oxides (NOx) in particular is the main part of the regulation. IMO NOx levels are generally possible to meet by means of primary on-engine measures so called IMO tuning. But further significant follow-on reductions are likely to require a secondary after-treatment technique.<br/> SCR technology is used almost exclusively for NOx removal in stationary combustion systems. SCR system is currently the only available technology proven at full scale to meet the 90% NOx reduction levels. Accordingly, the use of an SCR system on board ship maybe provides the solution to minimize this primary pollutant without increasing fuel consumption.<br/> In order to develop a practical SCR system for marine application on board ship, a primary SCR system using urea was made. The SCR system was set up on the ship, HANNARA as a test vessel, employed a two-stroke cycle diesel engine as main propulsion, which is a training ship in KMU (Korea Maritime Univ.). The purpose of this paper is to report the results about the basic effects of the above system parameters which is investigated from practical application through its trial use. The preliminary results are presented that the degree of NOx removal depends on some parameters. such as the amount of urea solution added, space velocity, reaction gas temperature and activity of catalyst.<br/>