메밀 추출물의 이상 침전 개선 효과에 관한 연구

윤성준,조남지,나석환,김영호,김영모,Yoon, Seong-Jun,Cho, Nam-Ji,Na, Seog-Hwan,Kim, Young-Ho,Kim, Young-Mo 동아시아식생활학회 2006 동아시아식생활학회지 Vol.16 No.6

The aim of this study was to identify the onuses of abnormal precipitation in buckwheat extracts and to suggest the preventive solutions. Abnormal precipitation was formed by the coagulations of small round droplets, and increased when poor quality or old buckwheat used. It was found that, unlike poor quality buckwheat, extracts made from fresh buckwheat showed almost no saccharifying enzyme activity and a lower number of microorganisms. The addition of branched starch to the extracts restricted the occurrence of abnormal precipitation and microorganisms and imparted stability to the extracts.

쓴 메밀에서의 루틴 추출 최적 공정 개발

윤성준,조남지,나석환,김영호,김영모,Yoon, Seong-Jun,Cho, Nam-Ji,Na, Seog-Hwan,Kim, Young-Ho,Kim, Young-Mo 동아시아식생활학회 2006 동아시아식생활학회지 Vol.16 No.5

The rutin content of Fagopyrum tataricum is 100-fold higher than that of Fagopyrum esculentum. For the development of a rutin-containing beverage, a suitable method to extract rutin from buckwheat (Fagopyrum tataricum) with high rutin yield was investigated. A roasting temperature range of $310/240^{\circ}C$ (Ed-confirm that this is indeed a range; otherwise perhaps, 'Roasting temperatures ranging from 310 to $240^{\circ}C$ were considered$\ldots$') was considered to be the best as the basic color reference. Rutin content varied according to the roasting time and heating temperature; i.e., it decreased with increasing roasting time and temperature. (Ed- this sentence is unnecessarily complicated and should be simplified to 'Rutin content decreased with increasing roasting time and heating temperature.') The optimal extraction temperature and processing time were obtained as $80^{\circ}C$ and 10 minutes to maximize the rutin concentration in the extract.

원산지효과에 대한 문화심리적 변인의 역할에 관한 연구

윤성준(Sung-Joon Yoon) 강원대학교 경영경제연구소 2020 Asia-Pacific Journal of Business Vol.11 No.3

Purpose - This study attempts to expand the realm of country-of-origin theory to incorporate the relevant cultural-psychological variables (i.e., ethnocentricism and psychological distance). Design/methodology/approach - This sttudy verified the effects of the two antecedent variables on the consumers’ purchase intention of Korean prducts. For this purpose, the study implemented survey questionnaire mathod on respondents living in Liaoning Province of China. Findings - The study result confirmed the relationship betweencountry image, product attitude, and purchase intention of Korean products. Also, the study found that ethnocentrism adversely affects Chinese consumers’ purchase decision on Korean products. Finally, the study confirmed the that psychological distance moderates the relationship between country image (ad product image) on purchase intention. Research implications or Originality - The study provides useful implications on the studies focusing on the country-of-origin effect in that it confirmed the effets of cultural-pychological variables such as ethnocentrism and psychological distance. The result also offers useful corporate strategies for the companies entering Chinese market particularly in segmenting the market based on such cultural-psychological variables.

클로람페니콜 내성 플라스미드 pKH7의 Rep 단백질과 CAT 단백질의 염기서열 분석

윤성준(Sung Joon Yoon),이대운(Dae Woon Lee),김우구(Woo Koo Kim),신철교(Chul Kyo Shin),임성환(Sung Hwan Im),문경호(Kyung Ho Moon) 대한약학회 1995 약학회지 Vol.39 No.6

The nucleotide sequence of XbaI-MboI fragment of pKH7, a chloramphenicol-resistant(Cmr) plasmid isolated from multidrug-resistant S. aureus SA2, has been determined. XbaI-MboI fragment of pKH7 was found to contain two ORFs. One ORF encoded Rep and the other encoded CAT protein. The deduced amino acid sequences of Rep and CAT of pKH7 were compared to those of pUB112 and pC221. Comparisons revealed that there was one amino acid dfference in CAT between pKH7 and pUB112. CAT of pKH7 exhibited 98.6% amino acid identity to that of pC221. In case of Rep proteins, a slightly lower homology of 96.4% and 86.7% in amino acid sequences was observed betweeen pKH7 and pUB112 and between pKH7 and pC221, respectively.

765㎸ 송전계통에서의 HSGS에 의한 2차아크 소호특성 분석

윤성준(Sung-Joon Yoon),이유진(You-Jin Lee),김철환(Chul-Hwan Kim) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7

기술의 발전과 고도의 산업화로 인해 전력소비자들이 이전에 비해 더욱 고품질의 전력공급을 원하게 되었고 이에 부합하여 전력공급 신뢰도 향상과 전력품질이 현재 중요한 연구과제로 대두되어 왔다. 계통의 특성에 따라 다르지만, 대략 송전 계통에서 발생하는 전체 고장의 75~90%는 일시고장이고 이러한 일시고장을 제거하기 위한 재폐로 과정을 수행시 계통의 신뢰도 및 안정도 향상을 위하여 적응적으로 무전압 시간을 조절하는 것이 필요하다. 본 논문에서는 아크고장에 따른 무전압시간을 최소화시켜주는 HSGS(High Speed Grounding Switches) 의 기능에 대해서 검토하고, EMTP로 모델링된 765㎸ 송전계통에 일시 고장을 발생시켜 HSGS의 투입여부에 따른, 1선 및 2선 지락사고에서의 2차아크 소호특성을 분석하였다.

의료서비스품질과 고객만족에 관한 연구

윤성준(Yoon, Sung Jun),박종원(Park, Jong Won) 한국서비스경영학회 2002 서비스경영학회지 Vol.3 No.1

단백질가수분해효소를 첨가한 스펀지케이크의 품질 특성

윤성준(Seongjun Yoon),조남지(Namji Cho),문성원(Sung-Won Moon),김미숙(Misook Kim),이영승(Youngseung Lee),윤옥현(Ok Hyun Yoon),정윤화(Yoonhwa Jeong) 한국식품영양과학회 2015 한국식품영양과학회지 Vol.44 No.5

아밀로그램 특성은 대조군과 비교하여 단백질가수분해효소의 첨가량이 증가할수록 최고점도는 유의적으로 증가하였으며, 냉각 후 점도 역시 850.2±10.03~830.4±8.88 B.U.로 첨가량이 증가할수록 유의적으로 감소하였다. 비중과 pH 및 굽기 손실률은 대조군과 비교하여 유의적 차이는 없었으나 높이는 대조군이 4.24±0.18 cm, 단백질가수분해효소 첨가구가 4.84±0.09~5.06±0.11 cm 정도로 대조군과 비교하여 유의적으로 증가하였다. 비용적은 대조군 3.53±0.06cc/g과 비교하여 3.66±0.13~4.21±0.02 cc/g으로 유의적으로 높게 나타났으며, 이러한 현상은 계란단백질의 폴리펩타이드 사슬을 가수분해하여 반죽이 연화되고 윤활성이 증가하여 최종제품의 부피, 기공, 색상 및 품질이 향상되었다는 연구 결과(16)와 유사하였으며 crust의 적색도는 대조군과 비교하여 유의적으로 증가하였다. 경도는 대조군의 0일차가 323.96±30.84였고, 실험군은 324.36±28.53~280.08±26.66으로 감소하였으나 유의적 차이는 없었다. 2일차의 경도는 PC-2가 420.64±43.46, PC-3이 393.79±34.64, PC-4가 373.35±30.82로 대조군의 456.01±37.64보다 유의적으로 감소하였다(P<0.05). 관능검사는 껍질색과 내부 색상이 대조군과 비교하여 유의적 차이는 없었으나 맛, 향, 조직감, 촉촉한 정도, 식감에서는 유의적으로 높은 점수를 얻었다(P<0.05). 이상의 결과로 스펀지케이크에 단백질가수분해효소를 첨가하면 부피, 높이, 비용적에 영향을 주어 부피가 증가하고 품질 개선에 효과적인 것을 확인하였다. This study investigated the effect of protease on quality characteristics of sponge cake. Protease was used at levels of 0.0005 U (PC-1), 0.0010 U (PC-2), 0.0015 U (PC-3), and 0.0020 U (PC-4) for sponge cake preparation. Amylogram showed the setback was significantly decreased in comparison with the control (P<0.05). Height and baking loss rate of control sponge cake were 4.24±0.18 cm and 12.01±0.29%, respectively. PC-3 and PC-4 showed increased heights of 5.22±0.16 and 5.24±0.11 cm as well as slightly increased baking loss rates of 12.71±0.31% and 12.89 0.61%, respectively. Specific volume and color difference measurements of control showed a specific volume of 3.53±0.06 mL/g, crust color difference of 53.05±0.28, and crumb color difference of 29.84±0.52. Measurements of specific volume, crust color, and crumb color of PC-3 and PC-4 were 4.18±0.02 mL/g, 56.19±0.84, 29.05±0.43, 4.21±0.02 mL/g, 56.85±0.43, and 29.45±0.47, respectively. Firmness measurements showed that the control had the highest firmness. PC-3 and PC-4 were effective at improving the shelf-life of sponge cake as indicated by reduced firmness. Sensory evaluation results demonstrated that all samples scored higher than the control. Throughout the results, the addition of protease increased volume and improved quality characteristics of sponge cake.

Principle component regression에 기반한 글로벌 공급사슬의 운영 리스크 예측 및 원천추론

윤성준(Sung Joon Yoon),박양병(Yang Byung Park),유준수(Jun Soo Yu) 한국SCM학회 2017 한국SCM학회지 Vol.17 No.1

In modern business environment, supply chains become more vulnerable to operational risks due to globalization. It is a critical issue for supply chain managers to manage operational risks proactively and effectively. This paper proposes the operational risk management model of global supply chains. It predicts the supply chain performance based on principal component regression, assesses the supply chain risk using the modified adaptive exponentially weighted moving average control chart, and infers the core operational risk source using a methodology based on principle component analysis. 23 kinds of operation indicators are developed to measure the local operating performance. The model is successfully applied to an industrial example.

이성적 행동이론을 이용한 호텔이용의향의 결정요인에 대한 대안적 접근

윤성준(Sung-Joon Yoon) 한국마케팅과학회 2007 마케팅과학연구 Vol.17 No.1

  본 연구는 이성적 행동이론의 모형을 토대로 정보탐색과 브랜드이미지가 호텔이용의도에 미치는 영향을 알아보고자 한다. 본연구의 주요 목적은 이성적 행동이론을 바탕으로 호텔에 대한 태도가 이용의향에 미치는 영향을 조사하는데 있다. 또한 이성적 행동이론에 대한 제한점을 고려하여 대체변수로써 브랜드이미지가 호텔태도와 이용의향에 미치는 영향을 알아보고 브랜드 이미지가 주관적 규범을 대체 할 경우 이성적 행동이론의 설명력에 유의한 기여를 하는지를 확인하였다. 그리고 호텔이용의향에 있어서 정보탐색의 유형이 미치는 영향을 조사하였다.<BR>  본 연구의 결과, 세 가지 속성요인 즉, 인적서비스와 물리적 시설, 정보화로 구분한 호텔의 인지적 평가요인 중에서 특히 인적서비스와 물리적 시설이 호텔이용의향에 유의한 영향을 미치는 것으로 나타났다. 브랜드이미지는 호텔이용의향 뿐만 아니라 호텔에 대한 태도에도 유의한 영향을 주는 것으로 나타났다. 특히, 브랜드 이미지가 이성적 행동이론을 개선해 주는 역할을 한다는 분석결과는 이성적 행동이론의 주관적 규범이 갖는 제한점을 극복하여준다는 면에서도 중요성을 갖는다. 호텔이용을 위한 정보탐색 과정을 통해 고객은 TV. 라디오, 신문, 잡지, 인터넷 같은 외적 정보원을 호텔 이용결정에 있어서 더 중시하는 것으로 나타났다.   This study seeks to understand the effects of information search activities and brand image on the hotel patronage intention based on the theory of reasoned action. First, it investigates the influence of attitude formed about hotel on the patronage intention. Second, it seeks to develope an alternative to TRA by looking into the effects of hotel image variable on hotel-specific attitude and patronage intention and attempts to substantiate the role of brand image as a substitute to subjective norm to increase the TRA"s explanatory power. The main finding of this study are as follow;<BR>  First, out of the three components of cognitive evaluation of hotel (human service, physical service and information service), human and physicial services were found to have significant influence on patronage intention. Brand image was found to exert notable influence on attitude toward hotel as well as patronage intention. Remarkably, the finding that brand image positively enhanced the TRA model sheds new strategic insight as to the usefulness of brand image as an alternative to overcome the TRA"s limitation stemming from subjective norm. Third, it was learned that study subjects gave more weight to external information sources such as TV, radio, newspaper, magazine, and internet than to internal sources such as individual knowledge, experience or self image.

기대불일치와 전반적 만족에 따른 자동차 고객 충성집단의 분류

윤성준 ( Sung Joon Yoon ),박종원 ( Jong Won Park ) 한국소비자학회 2003 소비자학연구 Vol.14 No.1

This study was conducted with a view to applying the concept of customer loyalty to Korean automobile market. This study`s research objectives are threefold; 1) to verify the effects of expectation disconfirmation on overall satisfaction and repurchase intention, 2) to classify customers into four loyalty groups based on the interaction between expectation disconfirmation and repurchase intention, 3) to determine the effects of exogenous variables such as normative and situational variables on the loyalty groups. According to the study results, negative disconfirmation was found to affect overall satisfaction and repurchase intention more than positive disconfirmation. Also, this study found that the four loyalty groups(loyal, spurious, latent, and non-loyal) responded differentially to the exogenous variables. Finally, this study provides managerial implications regarding customer segmentation strategy to increase customer loyalty.