추출방법에 따른 소목 심재의 항산화 및 항당뇨 활성 평가

홍영주,정경한,정윤희,김태훈,Hong, Young Ju,Jeong, Gyeong Han,Jeong, Yun Hee,Kim, Tae Hoon 대한본초학회 2017 大韓本草學會誌 Vol.32 No.6

Objectives : The heartwood of Sappan Lignum has been used since ancient times as an ingredient in folk medicines against anti-bacterial and anti-anemia purposes. Many bioactive constituents have been derived from this biomass such as chalcones and homoisoflavonoids. In the current investigation, the antioxidant and anti-diabetic properties using DPPH and $ABTS^+$ radicals scavenging, ${\alpha}-glucosidase$, and advanced glycation end products (AGEs) inhibition assays were evaluated by different extraction methods of Sappan Lignum. Methods : In our continuing investigation for bioactive natural ingredients, the antioxidant and ${\alpha}-glucosidase$ inhibitory properties of Sappan Lignum extracts were prepared from different extraction methods and the biological efficacies were investigated in vitro. The antioxidant properties were evaluated employing radical scavenging assays using 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) ($ABTS^+$) radicals. In addition, the anti-diabetic effects of Sappan Lignum extracts were tested via ${\alpha}-glucosidase$ and AGEs formation inhibitory assay. The total phenolic contents were determined using a spectrophotometric method. Results : All the tested samples showed dose-dependent radical scavenging and ${\alpha}-glucosidase$ inhibitory activities. Among the tested extracts, the 80% methanolic extract of Sappan Lignum was showed the most potent activity with an $IC_{50}$ value of $82.3{\pm}1.7{\mu}g/m{\ell}$ against DPPH radical scavenging assay. While, $ABTS^+$ radical scavenging activity of 80% methanolic extract was higher than those of other extracts. Also, ${\alpha}-glucosidase$ inhibitory and AGEs formation effects of each extacts and total phenolic contents were evaluated. Conclusions : These results suggested that Sappan Lignum can be considered as a new effective source of natural antioxidant and anti-diabetic materials.

강구조의 모멘트 접합부 접합상세에 따른 내진성능 평가 비교

홍영주(Hong, Young Ju),이기원(Lee, Gi Won),오상훈(Oh, Sang Hun) 한국강구조학회 2021 한국강구조학회 학술대회 발표집 Vol.32 No.1

인지언어학적 관점에서 바라본 한국어 ‘가다’ 동사와 일본어 ‘いく’ 동사의 대응관계

홍영주(Hong, Young Ju) 동아시아일본학회 2020 일본문화연구 Vol.0 No.74

본고에서는 일반적으로 한국어와 일본어가 일대 일로 대응하여 나타난다고 생각되는 표현들 가운데 한국어 ‘가다’ 동사와 일본어 ‘いく’ 동사의 대응관계를 중심으로 이들 동사의 대응관계의 양상을 살펴보았다. ‘가다’ 동사와 ‘いく’ 동사는 서로 대응하여 나타나는 경우와 그렇지 않은 경우로 나뉘는데 본고에서는 이러한 대응관계상의 차이가 나타나는 이유를 인지언어학적 관점에서 고찰하였다. 먼저 한국어와 일본어 모국어 화자가 각각 ‘가다’ 동사와 ‘いく’ 동사를 사용할 때에 있어서 ‘가다’ 동사와 ‘いく’ 동사가 상호 대응하여 나타나는 경우의 인지적 범주를 네트워크 모델을 통해 제시하였다. 그리고 이들 동사가 대응하지 않는 경우에 대해서는 한국어 모국어 화자와 일본어 모국어 화자 모두 문맥으로 알 수 있는 정보를 인지하여 각각의 쓰임에 맞게 ‘가다’ 동사와 ‘いく’ 동사를 대신하는 다른 한국어 표현과 일본어 표현을 선택하여 사용하고 있다는 사실을 확인하였다. 이는 각 동사에 대한 양 언어 모국어 화자의 인지적 범위의 차이에 기인하는 것으로 Langacker(2002)의 네트워크 모델을 통해 제시하였다. This study focused on the correspondence between the Korean verb ‘gada’ and the Japanese verb ‘iku’. It is generally known that the two verbs mentioned above correspond to each other in many cases. However, several cases seem to have no correspondence between the two verbs. So this study aims to explain the reasons for the difference in the correspondence between the Korean verb ‘gada’ and the Japanese verb ‘iku’ from a cognitive linguistics point of view. In particular, this study provided the network model of the cognitive scope of the corresponding cases and no corresponding cases in using the Korean verb ‘gada’ and the Japanese verb ‘iku’ by the Korean and the Japanese native speakers. And it was found that in no corresponding cases the Korean and the Japanese native speakers use the other expressions instead of using ‘gada’ and ‘iku’ by recognizing informations that can be obtained from a sentence or context. This is due to the difference in the cognitive scope of the native speakers of both languages and this fact was presented through Langacker"s Network Model.

한일명사연결의 대조연구 : N1과 N2의 결합관계 및 「の/의」의 개재 여부에 관하여

홍영주 ( Young Ju Hong ) 한국일어일문학회 2006 日語日文學硏究 Vol.59 No.1

2진 FSK 시스템에서 구속장이 7인 (2,1) Viterbi 복호기를 갖는 광헤테로다인 수신기의 성능 분석

홍영주(Young-Ju Hong),한종석(Jong-Seok Han),홍권의(Kweon-Eui Hong),정진호(Jin-Ho Jung),김영권(Yung-Kwon Kim) 대한전자공학회 1993 대한전자공학회 학술대회 Vol.1993 No.11

색소 중간체와 개시체 투여가 Monascus 색소생산에 미치는 영향

홍영주(Young Ju Hong),김정구(Jeong Gu Kim),우현철(Hyun Chul Woo),김수언(Soo Un Kim) 한국응용생명화학회 1995 Applied Biological Chemistry (Appl Biol Chem) Vol.38 No.1

To investigate the mechanism for the main chain-elongation process and the possibility of putative precursors as stater units in the biosynthesis of the Monascus pigments, feeding experiments with possible poly-β-ketide intermediates were carried out. Both crotonic acid and sorbic acid. especially In low concentrations, enhanced the pigment production while not increasing the dried mycelium weight appreciably. Also, it was observed that the feeding of sorbic acid and its ethyl ester was about two folds efficient in the pigment production than the feeding of crotonic acid and its ethyl ester. In addition to these acids, cinnamic acid and vinylacrylic acid were examined for their possibility as starter units. It was observed that the color of the culture fed with cinnamic acid was dominantly dark-red, but with overall decrease in the pigment production. Whey its ethyl ester was administered to the culture. however, the pigment production increased significantly. Also noted in 2D TLC study o1 the pigments was the increased production of red pigment and the formation of new red pigments.

일본어와 한국어의 명사 연어 구성에 대해서

홍영주(Hong, Young Ju) 동아시아일본학회 2015 일본문화연구 Vol.0 No.54

일본어와 한국어에는 ‘N1-N2’ 형태의 명사 연결 형태가 존재한다. 본고에서는 이들을 후항명사의 서술성 여부에 따라 분류 추출한 뒤 이들 구성에 나타나는 두 명사 사이의 의미 관계를 ‘의미역할’을 이용하여 분석하였다. 그리고 명사와 명사가 결합하는 데 있어 생산적인 의미 관계와 결합하기 어려운 의미 관계가 존재한다는 사실을 제시함으로써 의미관계가 명사 연어 구성의 생산성에 영향을 미친다는 사실을 밝히고자 하였다. 분석의 결과, 의미 관계에 따라 명사 연어 구성의 생산성에 차이가 나타났으며 그 중 생산성이 가장 높은 의미 관계는 ‘장소-대상’, ‘수단-대상’의 연결로 양 언어에 공통적으로 나타난다는 사실을 알 수 있었다. 후항명사가 VN인 경우는 전항명사가 ‘대상’인 경우 명사 연어구성을 가장 생산해 내기 쉽다는 사실을 확인할 수 있었다. 또한 일본어는 명사의 종류와 상관없이 대부분의 경우에 있어 연결 요소가 개재 가능한 모습을 보여 의미 관계가 형태적으로 발현되는 모습을 확인하기 어려웠으나 한국어의 경우는 이러한 부분에 있어 일정한 규칙성을 보여 의미 관계와 형태 사이에 일련의 상관관계가 존재한다는 사실을 제시할 수 있었다. In Japanese and Korean there is the “N1-N2” type noun serial system. When more than two words get connected and form a bigger union as a whole, we call this “collocation”. When there is a little more detail in the internal combination of N1 and N2, we can classify them into two groups. In spite of having the same form on the surface, they can belong to different categories. There can also be some kind of correlation between the semantic relation of two nouns and the form of those nouns’ collocations. In this research, we aim to describe the correlation between semantic relation and form. The result of the analysis is that in the case of Japanese noun collocation, “location- theme” and “instrument-theme” are in order of productivity. We can also find out that in case of the verbal N2, “theme”N1 is the most productive collocation in both languages. Meanwhile, in Korean, “location-theme” and “possessor-theme” are in order of productivity. Korean is different from Japanese in one point: that “agent”N1 can easily form a noun collocation. Furthermore, in Korean, unlike in Japanese, when N1 represents “theme”, the noun connecting particle cannot appear between N1 and N2 .

부모의 학업성취압력과 초등학생의 학업성취 간의 관계에서 부모의 학습관여와 초등학생의 학업적 자기효능감의 매개효과

홍영주 ( Young Ju Hong ),이지연 ( Jee Yon Lee ) 한국아동교육학회 2012 아동교육 Vol.21 No.2

본 연구는 부모의 학업성취압력이 초등학생의 학업성취에 영향을 미치는 과정에서 부모의 학습관여를 1차 매개변인으로 학업적 자기효능감을 2차 매개변인으로 상정하여 부모의 학습관여와 초등학생의 학업적 자기효능감의 매개효과를 알아봄으로써 자녀의 학업적 자기효능감을 높이고 학업성취를 증진시키기 위해 부모가 자녀를 양육하는 데 고려해야 할 태도나 방법에 도움을 주는 데 목적이 있다. 이를 위해 경기 소재 A 초등학교 6학년 학생 216명을 대상으로 주요 변인들 간의 관계를 파악하기 위해 상관분석을 실시하였다. 이어서 구조방정식을 이용하여 매개효과를 검증하였다. 본 연구의 결과를 요약하면 다음과 같다. 첫째, 부모의 학업성취압력과 학업성취, 부모의 학습관여 및 학업적 자기효능감의 상관관계를 살펴본 결과, 부모의 학업성취압력과 학업성취, 부모의 학습관여와 학업적 자기효능감 및 학업적 자기효능감과 학업성취는 높은 정적 상관을 나타내었다. 그리고 부모의 학업성취압력과 부모의 학습관여는 유의한 정적 상관을 보였다. 둘째, 부모의 학업성취압력과 학업성취 간의 관계에서 부모의 학습관여와 학업적 자기효능감의 매개효과를 알아본 결과, 부모의 학업성취압력은 학업성취에 직접효과도 있지만, 부모의 학습관여와 학업적 자기효능감을 경유하여 학업성취에 간접 효과도 있는 것으로 나타나 부모의 학습관여와 학업적 자기효능감의 매개효과가 검증되었다. 즉, 부모가 자녀의 학업성취에 대한 기대와 관심이 많아질수록 부모의 학습관여가 촉진되며, 이로 인해 자녀의 학업적 자기효능감이 높아짐으로써 높은 학업성취를 가능하게 하였다. 이러한 결과들을 토대로 본 연구의 시사점과 제한점 그리고 앞으로의 연구방향에 대한 시사점을 언급하였다. This study aims to give parents tips about the parental attitude or method used for rearing their children so that children`s academic self-efficacy can be increased and academic achievements can be improved, by setting parental learning involvement as the first mediating variable and academic self-efficacy as the second mediating variable and examining the mediating effects of parental learning involvement and elementary school students` academic self-efficacy, in the process examining the effect parental academic achievement pressure makes on elementary school students` academic achievements. Based on 216 children who are sixth grade students of A elementary school in Kyonggi-Province, correlation analysis was conducted in order to identify relationships between research variables. In addition, the mediated model was verified by using the structural equation. The results of the study are as follows: First, the study showed that there were high positive correlations between parental academic achievement pressure and academic achievements, parental learning involvement and academic self-efficacy as well as academic self-efficacy and academic achievements. Parental academic pressure and parental learning involvement showed a significant positive correlation. Second, in regard to the mediating effects of parental learning involvement and academic self-efficacy between parental academic achievement pressure and academic achievements, it revealed that parental academic achievement pressure had not only a direct effect on academic achievements but also an indirect effect on academic achievements through parental learning involvement and academic self-efficacy. Accordingly, it appeared that parental learning involvement and academic self-efficacy were partly mediated on the verification of mediating effects of parental learning involvement and academic self-efficacy. In other words, the more that parental expectation and interests for children`s academic achievements were, the more that parental learning involvement was promoted. Therefore, children``s academic self-efficacy was increased and it made academic achievement high. Implications and restrictions for this study and future research were suggested.

자연언어에 나타나는 어와 구의 인터페이스에 관한 연구

홍영주(Hong, Young-Ju) 대한일어일문학회 2017 일어일문학 Vol.75 No.-

Human language is generated in a way that form a larger unit through interaction of phonemes, words, phrases. And each units have common properties in aspects of semantics and phenomenon of grammar. But is it really possible to draw a line accurately between each other units? In Japanese there exists so called “syntactic compound” which has not only lexical properties but also phrasal properties. This is a interfacial category which has never been mentioned in Japanese linguistics. This research aims to describe these interfacial category between word and phrase in Japanese and Korean and also try to prove the need of interfacial category by language phenomena. Focusing on compound nouns and noun phrases I try to suggest the linguistic evidences that there exist kinds of noun-phrase interfacial category. Generally, compound nouns are connected by two nouns and they belong to word category. Whereas noun phrases which nouns are connected by the connective particle belong to phrase category. But there also exist some boundary category between word and phrase. They represent lexical properties in one hand, and phrasal properties on the other hand. The typical property of word category is their strong combination. To identify their strong combination we analyzed data through three language phenomena which is (1)internal argument combination, (2)two argument combination constraints, (3)word type condition. Meanwhile, the property of phrase category is the thing that they have loose conditions when they connect more than two words, and they permit intervening elements between two nouns. These phrasal properties can be found out on following three points:(1)they can connected to external argument. (2)they can combine more than three arguments. (3)they have no word type condition. Interestingly, I could find out that there are some compound nouns which seem to belong to word category in form but don’t keep the rules of them. The properties of these elements of the word-phrase boundary category are as follows. First, modifiers can modify one part of the compound noun. Second, as they have no word type condition, they can combined with different word type. Third, they can combine more than three arguments at once. As we have seen above, these words are neither belong to typical word category nor phrase category. That is the interface of word and phrase.

지지면 조건에 따른 무릎관절의 관절 위치 재현능력 비교

홍영주 ( Young Ju Hong ),원종혁 ( Jong Hyuck Weon ),권오윤 ( Oh Yun Kwon ) 한국전문물리치료학회 2007 한국전문물리치료학회지 Vol.14 No.3