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윤경원,서경순 한국식품저장유통학회 2023 한국식품저장유통학회지 Vol.30 No.6
The rhizome of Phragmites communis Trin. is used for vomiting and belching by clearing stomach and the sprout is used as tea. Phragmites japonica is similar with P. communis except the color of sheath is purple. This study is aimed to compare the in vitro antioxidant activity, total polyphenol and flavonoids contents of P. communis and P. japonica. The antioxidant activities of fractions from the two Phragmites plants were evaluated by 1,1-diphenyl-2- picrylhydrazyl (DPPH) and 2,2’-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging assay. The antioxidant activity varied with plant parts and extract solvents. The fractions of leaf extract from the two Phragmites plants (4.06± 1.32-16.47±1.28%) showed higher antioxidant activity by DPPH assay compared with rhizome fractions of two Phragmites plants (0.00±0.00-14.15±0.07%), these are lower compared with ascorbic acid and butylhydroxyanisole (BHA). The highest ABTS radical scavenging activity was found for rhizome ether fraction, namely 74.95±0.56% and 73.04±1.85% for P. communis and P. japonica, these are higher than BHA. The total polyphenol and flavonoids contents were different with plant parts and extract solvents, likewise antioxidant activity. A significant correlation was shown between DPPH and ABTS radical scavenging activity. Considering the results of this study, the leaves and stems of P. communis and P. japonica are expected to be used as natural antioxidants.
표준 생산 정보 구조 설계를 통한 이종 조선소 생산계획 정보 통합
윤경원(Kyung Won Yoon),이필립(Philippe Lee),우종훈(Jong Hun Woo) (사)한국CDE학회 2014 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2014 No.2
In case of shipbuilding planning and scheduling, it is difficult to estimate a production record because the shipbuilding charactristic is different from the other manufacturing industries in terms of kinds of product and the level of planning variation. One of solutions for the enhancement of planning quality is cokputer simulation. Various efforts and tries have been conducted about the computer simulation developent for planning enhancement. However, there were few cases of standardization of planning information because most researched were one-off things. So, most shipbuilding engineers think simulation based planning as bothersom works. For this reason, most prior work is to prepare standard planning template. In this paper, case study of standardization of different kinds of planning information is conducted based on the previous research of planning data standardization and application development. Through this study, the usefulness of the planning data standardization is varified.
윤경원 ( Yoon Kyung Won ) 한국태국학회 2019 한국태국학회논총 Vol.25 No.2
The purpose of this paper is to consider ellipsis phenomena in Thai and to help Korean Thai learners learn Thai language effectively by grammatically explaining the ellipsis phenomena of Thai language. The ellipsis phenomena of Thai is divided into essential ellipsis and arbitrary ellipsis. Essential ellipsis are also called 'the ellipsis by structural change', and the feature of 'the ellipsis by structural change' is that omitting information is recoverable in the deep structure but not in the surface structure. Arbitrary ellipsis contains 'the ellipsis by vocabulary information', 'the ellipsis by contextual information' and 'the ellipsis by situational information'. In Thai language, ellipsis of these three types is shown, and omitted information appears in not only the deep structure but also the surface structure, which is a general feature of arbitrary ellipsis, and it is not an non- grammatical sentence or an awkward sentence which is a general feature of arbitrary ellipsis.
윤경원 한국태국학회 2014 한국태국학회논총 Vol.20 No.2
This paper aims to define the position of two coordinate elements in Thai Pallell Words : what elements locate in front, what elements locate in rear, and why, when the words combined coordinately are parallel relation. Parallel Words (Coordinate Word) are the process of forming a new word by doubling a morpheme. In Chapter 2 and 3, I examine the order of constituents in Thai reduplication can be explained in terms of a couple of simply defined constraints. I classify the type of reduplication and show various examples. It is shown how the semantic constraints can be applied to explain the order of constituents in reduplication. For this study, the study compare with Korean Parallel words examples. In the 2nd chapter, I arrange the examples of the combination of meaningfully coordinate parallel words in the sociocultural aspect. In the 3rd chapter, I arrange the examples of the combination of meaningfully coordinate parallel words in the psychological aspect.
윤경원 한국태국학회 2019 한국태국학회논총 Vol.25 No.2
The purpose of this paper is to consider ellipsis phenomena in Thai and to help Korean Thai learners learn Thai language effectively by grammatically explaining the ellipsis phenomena of Thai language. The ellipsis phenomena of Thai is divided into essential ellipsis and arbitrary ellipsis. Essential ellipsis are also called 'the ellipsis by structural change', and the feature of 'the ellipsis by structural change' is that omitting information is recoverable in the deep structure but not in the surface structure. Arbitrary ellipsis contains 'the ellipsis by vocabulary information', 'the ellipsis by contextual information' and 'the ellipsis by situational information'. In Thai language, ellipsis of these three types is shown, and omitted information appears in not only the deep structure but also the surface structure, which is a general feature of arbitrary ellipsis, and it is not an non- grammatical sentence or an awkward sentence which is a general feature of arbitrary ellipsis.