• Composites Research
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• v.18 no.1
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• pp.55-66
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• 2005

Beside fire resistance, for Phenolic Composites(here-in-after PCs), in actual, moisture resistance are also needed when they are applied to components in wet uses such as in Naval vessels and in off-shore operations where direct water contact may be expected. PCs have so-called 'Micro-porous' when they are made by normal GRP manufacturing techniques, which causes much larger amounts of water absorption in them to higher level of around $7\%$. So, this figure, which indicate impending disaster in a polyester matrix laminate, has made some specifiers suspicious of the effect of the water on mechanical performance of PC in 'wet' service. To solve this problem, a large amount work has been carried out by workers in UK and US. This paper is an attempt to explain that the effect of the high water absorption of PCs is not the disaster that some 'prophets' may foretell. Let's open our next door fur better society much safetyfied by our own efforts with PCs. like in UK.

• Journal of the KSME
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• v.44 no.2
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• pp.23-25
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• 2004

이 글에서는 CFD의 효율적인 적용 및 사용을 통하여 제품의 설계와 생산 공정의 최적화가 어떻게 구현될 수 있으며 CFD를 이용한 최적화 과정 에서 걸림돌이 되는 것들로는 어떤 요소들이 있는 지 관하여 다루고자 한다. CFD와 같은 CAE tool 을 이용한 설계 과정의 최적화는 최신의 기술을 장착하고 있는 상업용 CFD 소프트웨어들에 의하여 가능하며 이들 코드들에 관한 특성들도 이 글 에셔 취급하고자 한다. 잘 알려진 바와 같이 제품 의 초기 개념 설계 단계에서부터 계획 및 상세설계에 이르기까지 각 단계에서 최적의 조건을 구하 기 위해서는 주어진 구속조건에서 변수들에 관한 반복적인 시뮬레이션이 수행되어야 한다. 이러한 과정에서 각각의 조건에 관한 시뮬레이션 과정이 시간이 비교적 많이 소요되는 수동적인 방법으로 이루어질 경우 최적화는 불가능하다. 즉 각 설계 변수의 최적화 조건을 구하기 위하여 CAE과정에 서 자동화(automation)은 필수적일 것이다. 전산 유체 역학(computational fluid dynamics)은 지난 30여 년 동안 다양한 유체유통 및 열전달 분야에서 사용되어져 오고 있는 시뮬레이션 기술이 다. 산업분야에서 CFD에 대한 요구가 증대됨에 따라 20여 년 전부터 상업용 CFD 코드가 등장하기 시작하였으며 근래 들어서는 약 80여 종류의 상업용 CFD 코드가 자동차, 전자, 화공, 건설, 조 선, 제강과 같은 여러가지 종류의 산업분야에서 이용되어 오고 있다 하지만 상업용 CFD 코드가 고가인 이유 때문에 비교적 풍부한 예산이 확보된 대기업 및 국책 연구소 중심으로 이에 관한 사용 자 층은 매우 제한적이었다. 아울러 사용상의 난 점 때문에 CFD를 전공한 전문가 집단 위주로 사 용되어 오고 있다. 이런 측면에서 볼 때 설계 분야 에 종사하는 엔지니어들이 CFD를 이용하여 설계를 하는 데는 상당한 괴리감이 존재하게 된다. 전 통적으로 CFD와 같은 해석은 설계에 대한 타당서 검증의 목적으로 설계 사이클에서 맨 마지막에 수행되어져 왔기 때문에 CFD가 설계에 직접적인 도움을 주지 못하고 보조의 역할밖에 하지 못하는 수몽척인 도구로 여겨져 왔다. 이려한 설계 경향 은 CFD가 설계 과정에서 요구하는 시간 내에 시뮬레이션이 불가능하기 때문에 나타난 현상이다 상기에서 언급된 문제점인 시abf레이션의 시간 단 축은 설계 부서 에서 사용되는 CAD 도구와 CFD와 같은 CAE tool을 적절하게 접목함으로써 (integration) 가능할 것이다. 이후에서는 CFD의 시뮬레이션 과정을 자동화하기 위하여 고려되어 야 할 요소들에는 어떤 것들이 있는지에 관하여 알아보고자 한다.

• Proceedings of the Technology Innovation Conference
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• 2003.02a
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• pp.81-100
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• 2003

최근 이동통신기술이 급속히 발달함에 따라 국내는 물론 전세계 이동통신업계는 제 3세대 이동통신서비스의 성공여부에 많은 관심을 쏟고 있다. 지금까지의 이동통신산업의 성장이 빠른 기술개발에 의존한 기술추동적(technology-push) 성격을 지녔다면, 이동통신시장이 포화상태에 근접하고 있는 최근에는 서비스 및 장비 양면에서의 경쟁이 치열해 짐으로써 소비자의 기술에 대한 선택이 더욱 중요해짐에 따라 수요견인적(demand-pull) 기술혁신이 예상된다. 따라서, 이동통신서비스의 확대에 따른 특정기술에 대한 소비자의 선호에 대한 올바른 판단이 향후 산업의 기술진화방향을 예측하는데 핵심적인 역할을 할 것으로 생각된다. 현재 이동통신기술의 진보의 키워드는 '멀티미디어화'이다 향후 VOD (Video On Demand) 등 비디오 스트리밍(video streaming) 기술을 이용한 동영상 서비스, 화상전화, 타 디지털기기(예를 들어 PDA, 디지털 카메라 등)와의 융합 등의 서비스가 본격화되고 차세대 이동통신망의 구축이 가시화됨에 따라 이동통신의 멀티미디어 기능은 더욱 주목받게 될 것이다. 따라서 이동전화 단말기 창의 컬러화는 이러한 이동통신기술의 새로운 패러다임을 떠받치고 있는 가장 중요한 이정표로서의 의미를 지니고 있다. 본 연구에서는 표시1창의 컬러화로 실현되는 기술혁신요소에 대해서 소비자가 부여하는 가치를 분석하고자 한다. 하지만, 컬러 단말기의 보급이 초기단계에 머무르고 있는 연구시점의 특성상 현시자료가 가용하지 않았기 때문에, 소비자에게 가상의 품질특성을 지닌 제품 조합을 제시하고 이에 대해 소비자가 순위를 매기게 함으로써 소비자의 선호를 측정하는 컨조인트(conjoint) 방법론을 사용하였으며, 소비자의 진술선호(stated preference)에 기초하여 이동통신단말기의 개별 특성에 대한 부분가치와 보상잉여를 측정하였다. 또한, 이를 통해 창의 컬러화로 인해 기대되는 초과이윤의 가능성 등 경제적인 효과들을 정량적으로 분석하고, 브랜드 가치 등 기존의 단말기 경쟁력 요소들과의 비교를 통하여 컬러화가 가져다 줄 경쟁요소들을 추정함으로서, 기술확산 메커니즘을 확인하고자 한다.

• Journal of the Korean Society of Clothing and Textiles
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• v.40 no.5
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• pp.801-814
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• 2016

This study uses the "Sejong chronicles" ritual manual to investigate the movements and roles of provincial governors during the enshrinement rituals of the royal portrait, the official uniforms of the provincial governors in their roles, and the characteristics of the official uniforms system for local governors in the early Joseon Dynasty. The results of this study are as follows. Provincial governors who participated in the enshrinement rituals of the royal portrait were governors 'en route' and governors 'in destination'. The movements of the governor 'en route' followed the provincial borders, official residences, and neighboring provincial borders. The movements of the governor 'in destination' followed the provincial borders, the official residence, and jinjeon. The roles of the governors included the welcoming ceremony, the bow-down ceremony, the front guard, and the farewell ceremony. The governors 'en route' wore Jobok in the welcome ceremony, and a Sibok in the bow-down ceremony before the farewell. The governor 'in destination' wore Jobok in the welcome ceremony, and Jobok (or Sibok if Jobok was not available) in the bow-down ceremony before the farewell. The characteristics of the official uniforms system for local governors in the Joseon Dynasty were as follows. First, the governors wore different uniforms depending on the importance of the rituals in the early Joseon Dynasty. Second, the names of official uniforms Sang-bok and Si-bok were used interchangeably in the early Joseon Dynasty. Third, local governors were allowed to wear Sangbok (or Sibok) instead of Jobok.

• Archives of design research
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• v.20
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• pp.265-276
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• 1997

I intend to grope for the desirable outdoor color environment creation plan through researching situation of our apartment houses color environment and grasping the point at issue. The rearch was made that Ilsan(16 items) new city apartment were selected and the color seperately measured such as the dominant, the aid, the accent colors through applied color component ratio was researched by calculating square measure of matched colors and through that the evaluation of apartment complex color environment was formed. The planned construction problems were issued from comparing the planned scheme and the present carrying color status guide by investigating the color plan applied Ilsan new city. The current out apartment outdoor color environment is poor, and the color plan of the early stage has many insufficient parts and many operation errors. For the creation of desirable color environment, the color plan establishment by regional characteristics, the color environment management, though exhaustive color consultation, and the external construction technique improvement, the standard color sheet diffusion, the color understanding of architects, the public relations (P.R), the education on the importance of color are required.

• Archives of design research
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• v.19 no.5 s.67
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• pp.105-118
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• 2006

From a general perspective of design history, the design methodology movement is interpreted in relations to the rationalistic and universal characteristics of modernism. This essay explores a historical context of the movement, focusing on its discursive and practical relations to cyborg sciences that has been shaped by the research and development of military technology in Cold War America. The formation of such relations could be largely devided into two processes: One is the process in which methods and techniques of system science that included operation research, system analysis, and system engineering, were appropriated by the first generation methodologists who had tried to establish "the science of design", and the other is the one in which Herbert Simon's studies on problem solving and artificial intelligence became profoundly embedded in theoretical frameworks of design methodology after the first generation. Examining such processes critically, this essay argues that a design process became finally redefined by the third generation methodology, as a 'feedback loop' of circulation of production and consumption, that is, an apparatus of information-processing which gives a concrete form to the "invisible hand" of markets.

• Journal of the Korean Society for information Management
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• v.24 no.3
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• pp.299-319
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• 2007

Recently, information portals, national institutions, and integrated information centers, which are eager to acquire quality contents, actively share contents. Korean national knowledge is recognized to be superior in terms of its specialty and reliability. Currently, the distribution of national knowledge in Korea is at the beginning stage as the content sharing was intended to enhance the users' accessibility to the information and ease of information use. In this study, we identified the national knowledge distribution status in Korea and abroad by analyzing the roles of the information providers, information search portals, and Korea Knowledge Portal. We also conducted in-depth interviews with six experts, who represent academic institutions, libraries, specialized information centers, and commercial ventures. To enable effective Korean national knowledge distribution, we generated suggestions for the respective information providing services to share and cooperate based on the analysis and tile Interviews.

• Journal of the Korean Society for information Management
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• v.32 no.3
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• pp.361-375
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• 2015

This study analyzes in various aspects the success factors in the development of the ETRI Journal which has been published by the Electronic and Telecommunications Research Institute, Korea, as an example case international journal by the institution. The results show that it ould be enlisted in SCI within 3 years after preparing the works for enlisting in it based on the supports from ETRI as well as the cooperation from members of the institution. From the first year 1996 when preparing the enlisting in SCI, the numbers of the articles published in each issue have been increased, and the members in ETRI have cooperated to publish their articles in the journal and cite the articles from the journal in their own articles and proceedings. The case of ETRI Journal shows that the journal published by institution can, in the first stage of its publication, take full advantage of its characteristics as an institution, if it can gain the cooperations both from the institution and its members.

• Korean Journal of Food Science and Technology
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• v.20 no.5
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• pp.650-658
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• 1988

The mobilization of proteins in the cotyledons of germinating soybean seeds (Glycine mar [L.] Merr.) and seedlings was studied by using light microscopy and transmission electron microscopy. The cotyledon tissues of soybean. were packed with protein bodies(diameter $0.1-15{\mu}m$) where storage protein of soybean is deposited. Degradation of protein bodies started in the epidermis and vascular tissues. After swelling of the protein bodies, autolysis of storage proteins began while the external membrane remained unbroken. Hydrolysis of proteins could be internal or peripheral and fusion might begin before complete protein degradation. Possible instances of vacuolar fusion were encountered in some cells. In all cases, the result of degradation was the same; the central vacuole of the cell. At the late stages of seedling growth, breakdown of tonoplast was observed in some cells.

• Korean Journal of Cognitive Science
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• v.24 no.2
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• pp.95-109
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• 2013

With the rapid evolution of the personal device environment, the demand for natural language applications is increasing. This paper proposes a morpheme segmentation and part-of-speech tagging model, which provides the first step module of natural language processing for many languages; the model is designed for mobile devices with limited hardware resources. To reduce the number of morpheme candidates in morphological analysis, the proposed model uses a method that adds highly possible morpheme candidates to the original outputs of a conventional left-longest-match-preference method. To reduce the computational cost and memory usage, the proposed model uses a method that simplifies the process of calculating the observation probability of a word consisting of one or more morphemes in a conventional hidden Markov model.