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어휘빈도와 어휘친숙도 평정에서 나타나는 모국어 어휘지식과 외국어 어휘지식의 관련성
문양호,남기춘,이재욱 이중언어학회 2001 이중언어학 Vol.18 No.1
This study investigated the correlation among word familiarity of foreign language and word frequency of native and foreign language. To see the language transfer effect, which is the influence of native language to foreign language, we studied whether the frequency ratings for English words of Korean speakers are influenced by their native language frequency and whether this effect changes as parts of speech. The result of Korean speakers showed that there were no language transfer effect in word frequency but there was correlation between English word frequency and English words familiarity. The result was the same for the Japanese speakers. This means that the lexical learning of native language and foreign language are independent and two systems function separately. As for parts of speech, correlation rates between word frequency and word familiarity of foreign language increased according to following order: noun, adjective and verb. Moreover, high frequency words showed higher correlation rates than low frequency words. Additionally, from the study of translation errors of Korean speakers. it was assumed that in spite of many years of English study, Koreans are lack of phonological knowledge. As to foreigners studying Korean, there were correlation between word frequency and word familiarity of Korean words. From this result, we can assume that foreigners first learns the educational vocabularies which comes first in the frequency book.
05 포스터 발표 : 자연생태 환경 분야(PN) ; 식물공장 시스템내 광환경 제어가 적축면 상추 생장에 미치는 영향
허정욱 ( Jeong Wook Heo ),김동억 ( Dong Euk Kim ),이광재 ( Kwang Jae Lee ),강동현 ( Dong Hyeon Kang ),이시영 ( Si Young Lee ),신현만 ( Hyun Man Shin ),허윤선 ( Yoon Sun Huh ),이기열 ( Ki Yeol Lee ),김태중 ( Tae Jung Kim ),김숙종 ( 한국환경농학회 2014 한국환경농학회 학술대회집 Vol.2014 No.-
Plant factory, which considered as a novel plant production system preparing for the climate changes such as a global warming or raining, is an attractive year-round production technique of leafy plants regardless of place or season. The environmental factors of air temperature, relative humidity, nutrient, CO2 concentration, light intensity or quality inside the factory system influencing on growth have been reported. In this study, effects of light-environmental control of quality or intensity were investigated on growth of red curly lettuce ( Brassica rapa) seedlings with different four growth ages (0, 10, 20, and 30 days-old after transplanting) inside the factory system. ‘Tukksum’ red-curly lettuce which developed two true leaves was used as a plant material, and the seedlings were cultured under nutrient solution of 1.5 ds m-1 EC and 5.8 pH for 10 days after light exposure of 50, 100 or 230 μmol m-2 s-1. Light-emitting diodes of Red, blue plus red, and blue plus white were used, and fluorescent light was considered as a control. In 0 day-old seedlings after transplanting, dry weight and number of leaves under blue plus red light of 50 μmol m-2 s-1 light intensity for 10 days increased 28 and 19% comparing with the control, respectively. Increasing of fresh and dry weights in 30 days-old seedlings was significantly stimulated by blue plus red and red light. However, leaf pigmentation was inhibited by the red light regardless of the different growth ages and promoted by the mixture lights. Under 230 μmol m-2 s-1 light intensity, number of leaves, fresh and dry weights were greater by mixture-light exposure on 20 days-old seedlings. On 30 days-old seedlings, increment of dry and fresh weights was also affected by the mixture light. Leaf pigmentation was significantly inhibited by the red light regardless of the different light intensities in all the growth ages. Higher growth and pigmentation could be achieved at 20 and 30 days-old seedlings cultured under the mixture lights of blue, red, or white. It is concluded that light intensity should be controlled according to growth ages for growth and pigmentation, but rather stable control during culture period, and monochromic red is not suitable for leaf pigmentation of red curly lettuce in plant factory system.