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신중민(Shin, Joongmin) 한국외국어교육학회 2021 Foreign languages education Vol.28 No.4
The purpose of this study is to analyze the research trends in Korean education for learners in the Arab region. This paper also suggests directions for the future research on the field of Korean education for these learners. To conduct this study, a process of collection and sorting of research papers was held as the first step. Consequently, 64 papers were chosen. Among 64 papers, 31 academic journals and 33 theses were included. The study then reviewed the research trend by years, publishing types, and topics. Although there were very few studies in the 2000s, the number of studies has steadily increased after 2010. This was related to the Korean Wave in Arab countries and the increase in Arab students who study in Korean from 2013. In the topic analysis by the topics, ‘Teaching and Learning’ accounted for the largest proportion. The second largest proportion was ‘Korean Education Content’. Next was ‘Korean Education in general’, followed by ‘Contrastive Analysis’. Overall, there have been many studies based on contrast or error analysis between Arabic and Korean languages. In terms of contents, there were many studies on phonetics and culture. However, it was found that there are many studies that need to be addressed in each sub-topic. Lastly, based on the analysis in this study, the characteristics and limitations of research trends were analyzed, and future research directions were suggested.
YounSuk Lee(이윤석),Dae-Sung Chung(정대성),Bruce R. Harte,Joongmin Shin(신중민) 한국원예학회 2010 원예과학기술지 Vol.28 No.4
The quality attributes of tomato fruit (Lycopersicon Esculentum Mill.) to treatments with 1-methylcyclopropene (1-MCP) were studied. Harvested tomato fruit was treated one time at the initiation of storage or once-a-day during storage with 1 μL/L 1-MCP at different storage temperatures, 12, 17, and 23℃. The results showed that both lower temperature and duration of 1-MCP treatment played an important role in ripening of tomato fruit. The once-a-day 1-MCP treatment was presented to be very effective in delaying quality changes of tomato fruit. The amount of chlorophyll and lycopene were measured to assess the impact of 1-MCP and temperature treatments on ripening, using a specific extinction coefficient absorbance technique. Storing tomato fruit at 12℃ resulted in a longer ripening period (color change) than tomato fruit stored at 17℃ and 23℃. 1-MCP treatment was very effective in retarding chlorophyll degradation and lycopene formation in the pericarp tissue of the tomato fruit at the different storage temperatures. The 1-MCP treatments affected the total chlorophyll content in different fruit tissues of the pericarp and placenta. Exposure of tomato fruit to 1-MCP gas at 12℃, using the once-a-day treatment, was highly effective in delaying pigment and color change.