LED조명등기구 디자인 개발을 위한 형태적 속성 분석에 관한 연구

윤봉식(Yun, Bong Shik),조광수(Cho, Kwang Su) 한국스마트미디어학회 2017 스마트미디어저널 Vol.5 No.4

본 연구는 유사 목적을 가진 제품들을 형태적 특성에 따라 분류하고, 기능적 유사성을 기반으로 범주화하여 전형성 추출함으로써 기구디자인 개발 시, 개발방향의 기준 마련에 목적을 둔다. 전형성 추출을 위한 본 연구의 표본영역은 선험 사례연구와 전문가자문을 통해 팬던트형과 천정부착형으로 제한을 두고, 한국과 일본에 출시된 2015년 12월 이전 출시 제품을 표본으로 국내 주요 6개 도시 관련업무 종사자 및 전공자를 대상으로 조사를 실시하였다. 조사는 형태적 분류를 위한 1차 조사와 전형성 추출에 관한 2차 조사, 형태적 디자인속성 분류에 관한 3차 조사로 이루어졌으 며, 기능 및 형태적 분류와 조형원리를 기준으로 디자인 속성을 도출하고 개별 요소를 추출함으로써 디자인 가중치 측정에 대한 향후 연구의 기반을 마련하고자 하였다. 연구결과의 산업적 적용으로 광원 대체로 인한 조명기구 시장변화에 디자인기술의 효율적 역할 정립과 기업의 연구개발 및조명기구관련 제품디자인 타입 변화 가속화에 신속한 대응방향 제시 효과를 기대할 수 있다. This study aims to establish the standards to give the design weight in case when developing equipment designs, by classifying products with similar purposes in accordance with the morphological characteristics and also extracting the typicality. Limiting the sampling group for the extraction of the typicality to a pendant-type and a ceiling buried-type through the preceding case study and consultation with experts, the survey was conducted for majors and relevant workers in six cities, sampling products released in Korea and Japan before May 2016. The 1st survey was about the Morphological classification, and the 2nd times about the extraction of the typicality while the 3rd one was about the classification of the morphological attributes. By drawing the design attributes based on the functional/morphological classification and formative principles, it aimed to establish the base of the future research on the measurement of design weight. The results of this study aim to efficiently establish the roles of design technology in accordance with changes in the lighting fixture market caused by the substitution of light sources, and also to draw the development direction to rapidly cope with the accelerated changes in lighting design types and corporate R&D.

인터넷리서치 시스템개발에 관한 연구

윤봉식(Yun Bong-Shik),김태호(Kim Tae-Ho),홍정표(Hong jung-pyo) 한국디자인학회 1999 디자인학연구 Vol.- No.32

3D캐릭터콘텐츠제작을 위한 표정에 관한 연구

윤봉식(Yun bong-shik),김영순(Kim young-soon) 한국콘텐츠학회 2004 한국콘텐츠학회 종합학술대회 논문집 Vol.2 No.1

이 연구는 비언어적 감성기호인 인간의 표정에 관한 것으로 3D캐릭터콘텐츠제작을 위한 기반 연구로 진행되었다. 인간의 감정과 표현에는 일종의 연계성이 있으며 인간의 표정에 나타나는 감성기호에는 일정한 패턴의 체계가 존재한다. 인간의 풍부하고 복잡 미묘한 감성은 감정이라는 형태로 표출되어지고, 복합적이고 세세한 감정의 형태를 모두 통제하는 것은 불가능하리라 사료되나, 감정의 영역에 대한 적정한 일체화 행위를 통하여 각 감정 영역별 흐름을 찾을 수 있을 것으로 기대된다. 표정 이외의 인간의 다른 행동들 역시 이처럼 특징적인 형태, 유사성 등이 존재하나 본 연구에서는 인간의 표정에 제한하여 연구를 실시하였고, 연구를 통하여 보다 편리한 표정제작에 도움이 될 수 있는 감정의 표출 형태 중 표정의 범주화를 실시코자 한다. This study is a fundamental research for the developing 3D character contents about facial expression as a sort of non-linguistic signs, focusing on an expression of emotion factors of a person. It contributes a framework for symbolic analysis about Human's emotions along with a general review of expression. The human face is the most complex and versatile of all species. For humans, the face is a rich and versatile instrument serving many different functions. It serves as a window to display one's own motivational state. This makes one's behavior more predictable and understandable to others and improves communication. The face can be used to supplement verbal communication.<br/> A prompt facial display can reveal the speaker's attitude about the information being conveyed. Alternatively, the face can be used to complement verbal communication, such as lifting of eyebrows to lend additional emphasis to stressed word. The facial expression plays a important role under the digital visual context. This study will present a frame of facial expression categories for effective manufacture of cartoon and animation that appeal to the visual emotion of the human.

인터넷을 통한 사이버리서치의 효율성과 신제품개발프로세스의 적용에 관한 연구

윤봉식(Yun Bong-Shik),정선화(Jung Sun-Wha),김태호(Kim Tae-Ho) 한국디자인학회 1999 디자인학연구 Vol.- No.29

인터렉티브 리서치 모듈개발에 관한 연구

윤봉식(Yun Bong-Shik),한일우(Han Il-Woo) 한국디자인학회 2000 디자인학연구 Vol.- No.38

참나리꽃으로부터 분리한 Aureobasidium pullulans가 생산하는 생물계면활성제

김종식 ( Jong-shik Kim ),전상미 ( Sang-mi Jeon ),이인경 ( In-kyoung Lee ),윤봉식 ( Bong-sik Yun ) 한국환경농학회 2016 한국환경농학회 학술대회집 Vol.2016 No.-

Yeast biosurfactants have many potential applications, because products with a “generally regarded as safe”(GRAS) status are low toxic or pathogenic, allowing for use in food and pharmaceutical industries. Thus, we have applied a rapid and simple method which was developed to screen biosurfactants-producing yeasts for high production of eco-friendly biosurfactants. During the screening for biosurfactant-producing yeasts, we successfully selected a yeast strain, Aureobasidium pullulans KCCM11200, from a tiger lily, Lilium lancifolium Thunb. A. pullulans is ubiquitous yeast reportedly found in various locations, including soil, water, plant leaves, painted walls, bathroom surfaces, hypersaline water in solar salterns and Arctic glacier ice. The yeast was cultured by addition of 20% glycerol as a carbon source, and its culture filtrate exhibited high surface tension ability. By the bioassay-guided fractionation, five high-surface-tension compounds were isolated from the culture supernatant of A. pullulans KCCM11373. Their chemical structures were determined to be compounds with molecular formulae of C11H22O4, C10H20O4, C9H20O2, C9H20O2 and C18H34O3, respectively, by mass and NMR spectroscopic analyses. These compounds showed surface tension activity of 33.76, 32.02, 37.3, 35.1 and 36.85 dyne/cm, respectively. In future studies, additional research on biosurfactant production by A. pullulans will enhance further understanding of potential biotechnological applications.

생물계면활성제 생산 효모로서 Aureobasidium pullulans

김종식 ( Jong-shik Kim ),이인경 ( In-kyung Lee ),윤봉식 ( Bong-sik Yun ) 한국환경농학회 2022 한국환경농학회 학술대회집 Vol.2022 No.-

The high toxicity and extremely low biodegradability of chemical surfactants released by industries constitute a major environmental concern. On the other hand, biosurfactants produced in vivo or in vitro by microorganisms such as yeasts are comparatively eco-friendly, non-toxic, and biodegradable. In fact, yeast biosurfactants are important biotechnological products in the food industry as well as have medical and cosmeceutical applications because of their specific modes of action, low toxicity, and applicability. This study aimed to develop high-value microbial biosurfactants. First of all, we developed rapid and simple screening methods for biosurfactant-producing yeast (BSPY) to design processes for the production of eco-friendly biosurfactants. Using the method, we screened many potential niches of BSPY, such as wild flowers, and developed fermentation processes to produce biosurfactants. Finally, a total of 30 strains of BSPY have been discovered until date. Unexpectedly, we are the first to report the black yeast Aureobasidium pullulansas potential BSPY in this study. In addition, 21 chemicals with high-surface tension were identified to contain biosurfactants in their culture supernatant. Analysis of the chemical structure of these 21 chemicals by mass spectrometry and nuclear magnetic resonance revealed 13 novel chemicals including glycolipids. Furthermore, BSPY (size, 29.9Mb) possess genes encoding for glycolipid-related proteins, which may provide hints to the underlying mechanism of biosurfactant production. Further studies are required to optimize the utilization of biosurfactants as valuable materials in industries.

생물계면활성제 생산 효모의 특성

김종식 ( Jong-shik Kim ),이인경 ( In-kyung Lee ),윤봉식 ( Bong-sik Yun ) 한국환경농학회 2019 한국환경농학회 학술대회집 Vol.2019 No.-

Biosurfactants (BSs) have recently been recognized as consequential biotechnological products in pharmaceutical, cosmeceutical, and potential food applications owing to their low toxicity, specificity, and biodegradability. In recent years, increasing significance has been placed on the environmental impacts of chemical surfactants. BSs produced by microorganisms such as yeast are thought to be efficient replacers of chemically synthetic surfactants, and BSs have been developed as suitable alternatives for antimicrobial and biomedical agents. This study aimed to develop of high throughput screening (HTS) method for large amounts of potential candidates. In HTS schemes, we improved rapid and simple screening methods for BS-producing yeast (BSPY) to design processes for the formation of BS. During the screening for BSPY, we isolated many BSPYs which were identified as Aureobasidium pullulans, from wild flowers. A. pullulans is ubiquitous yeast found in various environments, including soil, animal, and plant. A. pullulans produces polysaccharides such as pullulan, lipase, mannitol oils, biocontrol, lipid composition, and siderophore. Currently, a total of 30 strains of BSPY have been discovered until date, we are for the first time to report the black yeast A. pullulans as potential BSPY in this study. In addition, 21 chemicals with high-surface tension were identified to contain BS in their culture supernatant. Analysis of the chemical structure of these 21 chemicals by mass spectrometry and NMR (nuclear magnetic resonance) revealed 13 novel chemicals including glycolipids. These results suggest that this method can be used for HTS, in the near future, various BSs are potential new for use in various industrial applications and more novel BSPY or new BS may be found.

05 포스터 발표 : 환경 화학 분야(PC) ; 야생화로부터 분리한 Aureobasidium pullulans L3 생산 효모 생물계면활성제

김종식 ( Jong Shik Kim ),이인경 ( In Kyoung Lee ),윤봉식 ( Bong Sik Yun ) 한국환경농학회 2014 한국환경농학회 학술대회집 Vol.2014 No.-

Yeast biosurfactants are important biotechnological products in the food industry, and they have medical and cosmeceutical applications owing to their specific modes of action, low toxicity, and applicability. Thus, we explored and isolated biosurfactant-producing yeast. A rapid and simple method was developed to screen biosurfactant-producing yeasts with high production of eco-friendly biosurfactants. Using this method, several potential niches of biosurfactant-producing yeasts, such as wild flowers, were investigated. We successfully selected a yeast strain L3 with potent surfactant activity from a tiger lily wild flower, Lilium lancifolium Thunb. Here, we report the first identification of strain L3 as the black yeast Aureobasidium pullulans. In addition, we isolated a new low-surface-tension chemical, designated as aureobasin A, from the culture supernatant of strain L3 through consecutive chromatography steps by using an ODS column, solvent partition, silica gel, Sephadex LH-20, and an ODS Sepak cartridge column. The chemical structure of aureobasin A, determined by mass spectrometry and nuclear magnetic resonance spectroscopy, indicates that it is a novel compound with the molecular formula C33H62O12. Furthermore, aureobasin A exhibited potent biosurfactant activity (31 mN/m).

300W급 광원을 이용한 조명기구디자인개발에 관한 연구

황민구(Hwang Min-Ku),윤봉식(Yun Bong-Shik) 한국콘텐츠학회 2005 한국콘텐츠학회 종합학술대회 논문집 Vol.3 No.1

세계 조명시장은 시대적 변화에 대응하여 기술과 방법론적인 성장을 하고 있다. 그러나 국내 조명시장은 단순한 가격경쟁만을 고집하고 있고 이에 보다 효과적인 조명기술의 개발과 조명기구디자인프로세스의 정립을 위해 본 연구가 진행되었으며, 연구모델은 PLS조명기술개발프로젝트 중, 300W급 조명기구를 대상으로 하였다. 이 연구를 통해 진일보한 조명기술과 신제품디자인의 상호보완적 개발프로세스를 확립하고, 국내 경관조명시장의 국산화 및 국내 조명산업의 경쟁력 제고에 기여코자 한다. The international lighting market's growth about technologies and Methodologies to develop the products. but, domestic lighting fixtures are doing to price competition. Wish to accomplish process establishment for the effective Method to develop about the lighting technology and the new product design, through the development of PLS lighting technology and designs of 300 W class lighting fixtures.