• 제목/요약/키워드: Symbolic method

검색결과 382건 처리시간 0.027초

내부점방법을 위한 초마디 열촐레스키 분해의 실험적 고찰 (Experimental Study on Supernodal Column Choleksy Factorization in Interior-Point Methods)

  • 설동렬;정호원;박순달
    • 경영과학
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    • 제15권1호
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    • pp.87-95
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    • 1998
  • The computational speed of interior point method depends on the speed of Cholesky factorization. The supernodal column Cholesky factorization is a fast method that performs Cholesky factorization of sparse matrices with exploiting computer's characteristics. Three steps are necessary to perform the supernodal column Cholesky factorization : symbolic factorization, creation of the elimination tree, ordering by a post-order of the elimination tree and creation of supernodes. We study performing sequences of these three steps and efficient implementation of them.

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기어장치의 수뢰수명을 고려한 분해 및 조립용이성 평가 (An Estimation of Disassembly and Assembly in Gear Systems with Considering of Reliability Life)

  • 진정선
    • 한국공작기계학회:학술대회논문집
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    • 한국공작기계학회 1998년도 추계학술대회 논문집
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    • pp.210-215
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    • 1998
  • In this paper, systemaic approach is studied about assembility and disassemblility of parts of the gear system in order to reduce the assembly cost, and to disassemble products easily which is possible to recycle the parts. That is, an estimation of disassembly and assembly with considering of reliability life. In this study, we use symbolic chart method for an economic model for optimal disassembly and assembly.

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COMPLETELY INTEGRABLE COUPLED POTENTIAL KDV EQUATIONS

  • Wazwaz, Abdul-Majid
    • Journal of applied mathematics & informatics
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    • 제29권3_4호
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    • pp.847-858
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    • 2011
  • We make use of the simplified Hirota's bilinear method with computer symbolic computation to study a variety of coupled potential KdV (pKdV) equations. Each coupled equation is completely integrable and gives multiple soliton solutions and multiple singular soliton solutions. The phase shifts for all coupled pKdV equations are identical whereas the coefficients of the obtained solitons are not identical. The four coupled pKdV equations are resonance free.

Representation of Spatial Relations between Regions in a 2D Segmented Image

  • Ralescu, Anca;Miyajima, Koji
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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    • pp.1317-1320
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    • 1993
  • We are concerned with developing a robust method for comprehensive scene analysis. In particular, we address the problem of representing spatial relations between regions in a segmented 2D image. Spatial relations are modeled as fuzzy sets. The method has two aspects, symbolic and quantitative, consisting of assigning labels for spatial relations and numeric degrees to which a relation holds respectively. The procedure of deriving a spatial relation is hierarchical taking into account geometric/physical characteristics of the regions in question.

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장소 마케팅을 위한 지역 상징적 테마와 이미지 표현 기법에 관한 연구 - 일본 테마전시관 사례를 중심으로 - (A Study on the Symbolic Regional Themes and its Expression Methods for Place Marketing - Focused on the Theme Museums of Japan -)

  • 박혜경;김정재
    • 디자인학연구
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    • 제16권4호
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    • pp.267-276
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    • 2003
  • 본 연구는 장소 마케팅 전략인 지역 특성화를 위해서 적절한 지역 상징적 테마의 발굴과 이의 효과적 이미지 표현이라는 두 가지 관점에서 접근되어야 한다는 전제하에 최근 20년간 일본 지역 테마전시관에 나타난 지역 상징적 테마와 이의 표현 기법을 조사 분석하는 실증적 연구로 진행되었으며 이는 향후 국내의 지역 상징적 테마 특성과 표현 방법과의 비교연구를 위한 기초 자료로서의 목적을 가진다. 사례 조사 분석의 결과, 자연지형과 생태, 인공시설, 유적과 유물 등 물리적 유형과 지역산업, 지역문화, 지역인물, 역사사건 등의 사회 문화적 유형으로 분류되었다. 또한 전시관에 부여된 지역 상징적 테마를 적절히 표현하는 방법으로 재현, 은유, 환유, 상징 등의 표현기법 사례들이 나타났다. 특히 90년대 후반부로 올수록 다양한 지역을 상징하는 테마적용이 증가하고 더욱 강한 이미지로 표현되고 있었다.

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중국 청조(淸朝)의 복식 문양과 18세기 프랑스 복식 문양 비교연구 (A Comparative Analysis on the Costume Patterns Between 18th Century France and Chinese Qing Dynasty)

  • 김명은;배수정
    • 복식
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    • 제64권7호
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    • pp.29-44
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    • 2014
  • This thesis aims to compare the representative costume patterns of the Chinese Qing dynasty and contemporary $18^{th}$ century French costumes. As a research method, qualitative research was performed to compare and analyze the patterns of the flowers, the birds and pagoda shown in Qing dynasty and France. The results are as follows: The Chinese flower patterns used the embroidery technique for 3-step gradation colors to decorate flowers with less than 10 petals. Also, the forms of the flowers were large and simple in China. The flower patterns of the 18th century France is more similar to those of Qing dynasty than to the traditional French flower patterns. They used the drawing technique for the gradation colors and completed the work by embroidery. In the case of bird patterns, the crane on menswear, and the phoenix on women's wear were applied to signify the symbolic feature of the Chinese symbolism. On the other hand, those in France were used solely for the division of the gender. As a result the clear form of the birds in China contrasted with the unclear forms of birds in France. During the influx of mandarine square to France from China, the application of crane and phoenix according to gender seems to be stressed emphatically without considering their symbolic meaning. In light of the pagoda pattern, Qing dynasty showed interest only in the form of pagoda, denoting the simple two-tier structure without detailed description. Whereas in France, the pagodas were three or four tiers, with gorgeous colors and much more detail than those of Qing dynasty. In conclusion, the main determinants of influences on the patterns of France from China would be forms, colors, constructions and technique of embroidery, along with the disregard for symbolic significance.

'지역균형 발전과'과 '참여'의 의미 (An Essay on the Balanced Regional Development and the Implications of Participation)

  • 김덕현
    • 한국지역지리학회지
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    • 제10권1호
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    • pp.1-8
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    • 2004
  • 지역균형발전이 노무현정부에 의하여 당면한 국가적 의제로 부활되고 있다. 지역 균형 정책은 보다 발전 기회의 형평성을 확보한다는 의미로 정당화되어 왔다. 그러나 공간적 균형과 노무현정부의 '참여 민주주의'가 가진 내재적 연관이 보다 검토되어야 할 것이다. 참여 민주주의는 신사회운동이 주장하는 대안적 발전을 달성하는 중요한 수단으로 평가되었다. 그러나 교통과 인터넷과 같은 전자 통신수단의 발전은 공간적 집중, 특히 권위적 자원의 집중을 강화한다. 이러한 집중은 이데올로기적 정치적 의사결정에 지방의 참여를 배제하는 경향이다. 따라서 참여 민주주의 실현을 위한 지역균형 발전 정책은 신수도 건설과 같은 행정기관 분산으로는 부족하다. 상징적 행위와 관련되는 부문의 지방 배치 및 중점 육성이 매우 중요하다. 문화 산업, 교육 등이 그 예가 될 수 있다.

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현대패션에서의 과장형 복식의 조형적 특성과 상징적 의미에 관한 연구 (A Study of Formative Characteristics and Symbolic Meanings of the Exaggeration Type in Modern Fashion)

  • 김호정;김순자
    • 복식문화연구
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    • 제13권6호통권59호
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    • pp.883-895
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    • 2005
  • Exaggeration is to express an object or a situation in an excessive way. As the desire for aesthetic expression grows greater today, we tended to focus on the exaggerative expression as a means to acquire other's attention and praise. Also people more actively express their own intention or opinion in an exaggerated manner. The purpose of this study is to identify the social and cultural functions of modern fashion via exaggerative expression, one of the formative characteristics, and its meaning. To do so, the exaggerative features of modern fashion have been analyzed, and the social and cultural meaning of those have been examined through the background of the times and aesthetic sense. The formative form in the exaggerative expression shown in the modern fashion was classified into a body priority type emphasizing woman's body contour, a body disregarded type shown oversized silhouette regardless of body contour and a body distorted type expressing free and diverse form in various shapes of asymmetry and imbalance. The symbolic meanings of those include the changing of the body consciousness and the notions of feminity, and the desire fur formative and playable expression. The exaggeration of the costume in history meant aesthetic value of the woman's body in the society led by men. However, the exaggerative expression shown in the modern fashion is a method to express more actively, as compared with the costume in the past.

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복식에 나타난 양성성의 상징적 의미 연구 (A Study of the Symbolic Meaning of a Bisexuality in Costume)

  • 권기영
    • 복식문화연구
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    • 제10권6호
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    • pp.633-647
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    • 2002
  • The purpose of this study is to observe the symbolic meaning and the values of the costume which express bisexuality through the definition from a culture point of view. The research method is to contemplate the documentary records such as world history, art history and clothing history, and to recognize the symbolic meaning of a bisexuality in modern fashion design. A definition the word´man and woman´restricted the human being for a long time. This restrict is enforced by the costume, but this traditional fixed idea is retarded by the liberal sense of the human being and the design expresses a sex ambiguity This study inspects the sex ambiguity and the meaning of that through a cultural background and a historical costume. The results are as follows: The first, the cultural background about bisexuality is classified into the etymological point, the mythologic point. the art and philosophical point, the political and economic background, the mass media, and the custome and the regulation. A bisexuality is a concept in existence from ancient times. we have an open-minded attitude about bisexuality in the present than the past. The second, the function of costume is sex classification before 20th century, but since 20th century the costume expresses sex ambiguity. The third, the symbols of the bisexuality are the interminacy, the unity and the dismantling. The costume which expresses bisexuality means coexistence of male sex and female sex. this is a kind of motion to embody a ideal body of the human being. This study makes a contribution to recognize the dignity of human body and to understand the phenomenon of modern society.

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1950년대 근대계획도시의 도시형태 및 공간적 특성에 관한 연구 - 찬디가르와 브라질리아 계획도시를 중심으로 - (A Study on Characteristics of Modern Planned City's Form and Space in the 1950s -Focused on two planned cities realized: Chandigarh and Brasilia-)

  • 김진모;박열
    • KIEAE Journal
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    • 제16권4호
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    • pp.55-62
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    • 2016
  • Purpose: Since the 19th century many concrete models and theories for the ideal city had been proposed and in some way had affected on the ideal urban plans in the 20th century. Modern cities in the 20th century faced a total chaos, due to the world war and new social paradigm came from the development of technology. These social context leads us to be interested in ideal city. And two planned cities; Chandigarh, India and Brasilia, Brasil, are meaningful as the result of the modern ideal city in the early 20th century even though they completed just in part. Method: This study is focused on the characteristics of the modern ideal city in the early 20th century based on comparison with two realized cities. There are similarities and differences in their background, concept, and the characteristics of form and space. Result: First, both cities are required to make monumental and symbolic images by political issues. For this, Le Corbusier proposed the grid system for a metaphorical city and L. Costa defined the urban form with abstract axis for a mythological city. Second, the administrative districts in both cities are planned as symbolic places by formative buildings and their hierarchical arrangement. For neighbourhood unit 'Sector' in Chandigarh and 'Superquadras' in Brasilia are used for the neighbourhood unit respectively. Third, the car-oriented road system and urban environment by population overcrowding in tow cities are criticized in common. Consequently, as we can see, the modern ideal city in the early 20th century succeeds in making symbolic urban image, but exposes the limitation of sustainability.