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A New High-yielding and Good-quality Rice Cultivar ?Sobibyeo Adaptable to Low Fertilizer Level
Bo Kyeong Kim,Hyun Tak Shin,Jae Kil Lee,Jae Kwon Ko,Tae Hwan Noh,Mun Sik Shin,Yang Ho Oh,Yeong Doo Kim,Hong Kyu Park,Jin Il Choung,Yeong Tae Lee,Hyun Soon Kim,Soo Yeon ChoSeo 한국육종학회 2003 한국육종학회지 Vol.35 No.3
“Sobibyeo” is a new japonica rice cultivar developed from a cross betw een Hwayeongbyeo and YR13604Acp22 line by the rice breeding team of National Honam Agricultural Experiment Station (NHAES), RDA, in 1999. This cultivar has a large grain and about 119
김보영 ( Bo Yeong Kim ),강문구 ( Mun Koo Kang ),윤선중 ( Seon Joong Yoon ) 한국중등영어교육학회 2014 중등영어교육 Vol.7 No.2
The purposes of this thesis are analyzing the motivation and anxiety inco-teaching class according to demographic factors and corelation ofmotivation and anxiety. For them, structured questionnaires wereadministered for 266 students of public middle schools. This studyshowed some results. First, communicative apprehension and fear ofnegative evaluation in the co-teaching class were influenced by thespeaking ability of students, period of taking the co-teaching class, afavored type of class. Fear of the absence of the Korean teacher wasinfluenced by the speaking ability of students. Second, intrinsic andextrinsic motivation were influenced by the speaking ability of thestudents and the starting age of learning English. Third, intrinsicmotivation had an effect on communicative apprehension and fear ofnegative evaluation and reduced anxiety. Extrinsic motivation lessenedcommunicative apprehension and fear of the absence of the Koreanteacher. Instrumental motivation increased them. Based on the results,motivation and anxiety of students in co-teaching class need to beconsidered when the teachers plan the syllabus. Teachers are able torecognize the students’ demographic factors for successful learning.
이영문,송태성,심보경,Lee, Yeong-Mun,Song, Tae-Seong,Sim, Bo-Gyeong 대한기계학회 2001 大韓機械學會論文集A Vol.25 No.10
In end milling process the undeformed chip thickness and the cutting force components vary periodically with phase change of the tool. In this study, up end milling process is transformed to the equivalent oblique cutting. The varying undeformed chip thickness and the cutting force components in end milling process are replaced with the equivalent average ones. Then it can be possible to analyze the chip-tool friction and shear process in the shear plane of the end milling process by the equivalent oblique cutting model. According to this analysis, when cutting SM45C steel, 72% of the total energy is consumed in the shear process and the balance is consumed in the friction process.