• Title/Summary/Keyword: 윤기

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Effects of dipping syrups prepared with isomaltooligosaccharides on the Yackwa quality (이소말토올리고당을 사용한 시럽에 집청한 약과의 특성)

  • Lee, Kyong-Ae
    • Korean Journal of Human Ecology
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    • v.10 no.1
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    • pp.33-39
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    • 2001
  • The effects of dipping syrups prepared with isomaltooligosaccharides on the characteristics of Yackwa were investigated. The dipping syrups were prepared replacing sucrose with 0, 25 and 50% isomaltooligosaccharide. Physical and sensory characteristics of Yackwa were evaluated. Isomaltooligosaccharides increased dehydration rate and increased absorption rate of dipping syrups. Yackwas dipping in the syrup containing isomaltooligosaccharides were more acceptable than those with sucrose syrup. The acceptability was significantly correlated with shinness(p<.01), moistness(p<.05), adhesiveness(p<.05), cohesiveness(p<.01), roasted taste(p<.0l) and sweetness(p<.05). Therefore, isomaltooligosaccharides might be a good alternative for sucrose in making dipping syrup of Yackwa.

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The Differentiation Criteria between Greasiness and Shininess on The Face Using Mechanical Evaluation and Image (기계적 평가와 이미지를 이용한 얼굴의 번들거림과 윤기의 분류 기준의 연구)

  • Jang, YoonJung;Kim, Bora;Moon, Tae Kee;Kim, Nam Soo;Lee, Sun Hwa;Lee, Hye-ji
    • Journal of the Society of Cosmetic Scientists of Korea
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    • v.44 no.3
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    • pp.231-238
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    • 2018
  • The facial skin condition expresses physical healthy as well as is considered one of important factors for attractiveness. Especially, most people prefer shiny skin. So various cosmetics has been manufactured for expression of shiny skin. However, shiny skin is subjectively evaluated, and difficult to evaluate clear shininess using the existing method in oily skin. Moreover, there is no clear classification criteria between shininess and glossiness, which is assessed negatively in the skin. So there has not been a reference value by mechanical measurement to define and classify shiny skin from greasy skin. In this study, we measured skin biophysical parameters (gloss, hydration, translucency and sebum) and facial images which are selected by volunteers using sensory evaluation. According to the measurement results, the values of gloss, sebum, and translucency were similar in both shiny and greasy skin; the values of sebum and gloss increased, whereas those of translucency decreased. However only skin moisture values statistically increased in shiny skin. In conclusion, we propose objective assessment criteria for classifying shiny and greasy skin using device measurement and quantitative assessment.

통계 교육과 상담 (토론): 현황과 과거 10년의 변천

  • 윤기중
    • Journal of the Korean Statistical Society
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    • v.20
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    • pp.34-36
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    • 1991
  • 본고는 송혜향, 안윤기, 이용구, 조신섭, 그리고 허명회 교수 다섯분이 공동으로 연구 집필하여 학회에 보고한 "통계 교육과 상담 - 현황과 과거 10년의 변천" 제하의 논문에 대한 소론이다. 이 논문은 제목의 부제에 명시된 바와 같이 1981년 이후 1990년까지의 10년을 대상기간으로 했으며 내용도 제목에 명시된 바와 같이 통계교육과 상담에 관한 분석적 회고이다. 분석적 회고이다.

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Serum Containing Coptis Japonica Extract Improve Skin Elasticity and Radiance (황련 추출물을 함유한 세럼의 피부 탄력과 윤기 개선 효과)

  • Kyung Nam Min
    • Journal of the Korean Applied Science and Technology
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    • v.40 no.6
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    • pp.1330-1339
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    • 2023
  • In order to verify whether the serum using the medicinal plant Coptis japonica is effective in anti-aging of the skin, the improvement rate was analyzed by measuring the skin elasticity and radiance of the subjects, and the satisfaction was evaluated through a questionnaire. Twenty-two female subjects were given a serum containing 3% Coptis Japonica extract on one cheek for 4 weeks, and the test site was measured, and the skin elasticity increased by 5.73% from 0.8505 ± 0.0395 R2 (mm) before use to 0.8993 ± 0.0234 R2 (mm) after 4 weeks. Skin glow increased by 4.74% from 55.94 ± 5.49 (a.u.) to 58.59 ± 4.66 (a.u.), and the probability of significance was p<0.001, indicating a significant increase in the improvement rate of both items. It was found that all subjects were 100% satisfied with the improvement of elasticity and 95.5% satisfied with the improvement of radiance, and no skin abnormalities were found during the trial period. These results are expected to be used as basic data for future research and product development of anti-aging functional cosmetics using Coptis Japonica extract.

서평 : 윤기중 저, 수리통계학, 서울 : 박영사, 1974

  • 백운붕
    • Journal of the Korean Statistical Society
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    • v.3 no.1
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    • pp.65-66
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    • 1974
  • 통계학의 수리론을 전개한 우리의 저서가 별로 없는 터에 윤기중교수의 '수리통계학'이 박영사를 통하여 간행되었다. 이책은 미적분에 관한 수학지식으로 능히 독파할 수 있도록 순차적으로 차분하게 기술되어 있다. 집합론의 개념에서부터 시작하여 확률론의 기초사항을 친절하게 설명하고 연속확률변수의 분포, 확률표본, 점추정, 다변량정규분포, 각종 통계량의 분포, 통계적 가설검정, 구간추정, 그리고 끝으로 회귀와 상관분석에 이르기까지 각종항목에 걸쳐서 통계학이론이 빠짐없이 기술되어 있다.

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