• 제목/요약/키워드: and painting

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자동차 생산계획 시스템에서 제약만족기법을 이용한 생산 시퀀스 모듈 구현 (Implementation of a Vehicle Production Sequencing Module Using Constraint Satisfaction Technique for Vehicle Production Planning System)

  • 하영훈;우상복;안현식;한형상;박영진
    • 산업공학
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    • 제16권3호
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    • pp.352-361
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    • 2003
  • Vehicle manufacturing plant is a typical mixed-model production system. Generally it consists of three main shops including body shop, painting shop and assembly shop in addition to engine shop. Each shop contains diverse manufacturing processes, all of which are integrated in a form of flow line. Due to the high pressure from the market requesting small-volume large variety production, production planning becomes very critical for the competitiveness of automotive industry. In order to save costs and production time, production planning system is requested to meet some designated requirements for each shop: to balance the work load in body and assembly shops, and to minimize the number of color changes in painting shop. In this context, we developed a sequencing module for a vehicle production planning system using the ILOG Solver Library. It is designed to take into account all the manufacturing constraints at a time with meeting hard constraints in body shop, minimizing the number of soft constraints violated in assembly shop, and minimizing the number of color changes in painting shop.

천연 접착제를 활용한 사찰벽화 화벽층의 충전 재료연구 (Study on the filling material for the painting wall layer of the temple wall painting using a natural adhesive)

  • 김순관;정혜영
    • 보존과학연구
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    • 통권29호
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    • pp.255-278
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    • 2008
  • Considering the physical quality of the wall body in this study we tried to select a replenishing that is proper for filling the cracked part of the painting wall layer and apply the natural adhesives that have traditionally been used, investigating whether it is possible to substitute those for the chemical adhesive which is used at present time. The result of this study showed the red algae adhesive was, in a weathering environment, as safe as the synthetic resin originated from the polyvinyl acetate which is used generally on the present spot, and it was concluded that although the starch adhesive displayed its superiority in enhancing the strength of the earth mortar and its work disposition, it seemed proper for it to be used as a filling adhesive for the first or midterm layer because it showed a surface hardening phenomenon. And also the glue and fish glue were judged they were not qualified as a filling adhesive due to mold occurring in a environment of high moisture that is a biological problem, showing at same time a weak physical feature in a weathering environment. Therefore it would be possible to use the red algae adhesive or starch one substituting them for the original one sold on the present market, if among natural adhesives the weak points of the them were to be corrected.

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복식사 연구방법에 관한 소고(I) (A Study on the Research Methods in History of Costume)

  • 신상옥
    • 대한가정학회지
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    • 제18권4호
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    • pp.41-45
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    • 1980
  • We must identify the forms of dress devised throughout ages, when we wtudy, interpret and analyze the numerous resource material of costume. The study which depends on reference to actual artifacts is necessarily limited. Whereas items of contemporary dress are readily available, much from earlier eras has been destroyed or has deteriorated through time. Such as cottons, linens, silks, wools, leathers and furs are perishable organic materials. Few garments dated earlier than seventeenth century has survived except armor, jewelry. We have many sources of the information are available to study on costume of earlier eras. These sources are wall paintings, sculptures, painting, monumental brasses, manuscript illustration ceramics, coins, medals, mosaics, archives, literature. Wall painting and frescoes provided an useful source for costume study. Many wall paintings and frescoes were destroyed, were changed in color. It si advisable to interpret the dress detail, form color carefully. Sculpture would be useful to see the back and side views of dress. One of the most important points which should be made abut the use of sculpture as a source for costume study in early periods is that the sculptor's style will often change the character of a costume. As the painting si two-dimensional evidence for a three-dimensional costume, paintings must be accurately studied. What we must do, as far as we can, is to look at all visual representations in the light of other contemporary evidence in order to interpret the information correctly.

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민화의 구성요소에 관한 연구 (A Study of the Stuctual Elements of lcons through MINHWA in Lee Dynasty)

  • 오근재
    • 디자인학연구
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    • 제9권
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    • pp.701-712
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    • 1994
  • We are in the process of the deepening of the informationalized society. Such a phenomenon(of deepening of the informationalized society) means that human being is surrounded by a linguistic or semiological environment instead of realistic experience. And it is concerned with the visual design composed by the visual languages and semiotics of Arts. Because the visual design is a kind of the linguisticsmion using the visual formation. This penomena necessarily brings the expansion of the quatity of information and accompanies the simplification of messages. Therefore when we apply the simplicity resulting from the ideality of KYEORE painting(the folk Art of Korea), it can be cotribute to those who should be in the center of semiological environment more deeply as a source to maximize the effect of communication, which is the conclusion of this study. In sort, the characteristics of our KYEORE painting is the ideal expression. There are found not a few problems such as the depiction of forms, the perspective representation, the chiaroscuro, the expression of material if we evaluate them from the western formative viewpoint. But the depiction of the fact is less direct than the ideal expression itself, is likely to be much complicated, and can be far away from the world of reality. Because it is just the first step for satisfying the ideal images in man. In the composition of KYEORE painting is dominated by the rules nonprescription of time amd place, colloquialism of the meaning, distinction maximization. They are all the compositive characteristics resulting from the ideality. If these characteristics are modulated intelligently to the current thoughts, they will help to build the new visual communication system of Korea which has more direct and fast absorption force.

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장르화를 통해 본 17세기 스페인 전경 (Panorama of 17th Century's Spain Seen Through Genre Painting)

  • 박영미
    • 비교문화연구
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    • 제22권
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    • pp.51-72
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    • 2011
  • The economic decline coincided with the crooked political path of Spanish monarchy that has been on an almost permanent state of war. The Spanish empire was divided and consequently, general impoverishment spread throughout the whole country quickly. Nevertheless Spanish culture reached the climax, especially in the field of painting. Spanish paintings of 17th century are basically religious based on concept of Baroque, whose theme is usually the immaculate conception or mysterious figures of saints. Velaquez, Mrillo, and Ribera are the main painters who represented the trend of this time. Despite having fame as religious court painters, they painted subjects from low society such as beggars in rags, dwarves, jesters, or the poor child. They reflected an optimistic expression and an awe for human being in their paintings greatly. In this paper, we are dealing with three main representative painters of Baroque era whose theme was a picaresque character. This character was one of the axes that coexisted with royals and nobles in 17th century of Spain. The art works that are dealt in this paper serve as materials for historial values and through them we can observe the atmosphere of decline that dominated Spain of the time.

공정관리(工程管理)의 효율성(效率性) 제고(提高)를 위한 RFID시스템 구축(構築)에 관한 연구(硏究) - "E"사(社) 사례(事例)를 중심(中心)으로- (A Case Study on the Efficiency Improvement on Auto-Parts Painting Process Management by An RFID System)

  • 김원덕;박용태
    • 한국정보시스템학회지:정보시스템연구
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    • 제19권4호
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    • pp.233-252
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    • 2010
  • Due to its capabilities, RFID (Radio Frequency IDentification) has shown its applicability in various areas of business operations. This study describes the successful RFID system implemented in the auto parts manufacturing company called "E" to improve the efficiency of auto parts painting process management. The findings of this study show that an RFID system could help companies reduce manufacturing cost, inventory, and error rate in the auto-parts painting process. The RFID system descried in this study also demonstrates that an RFID system could make production data available real time to the company's ERP system and thus, managers and supervisors on the shop floor are able to make more informed business decisions. The findings of this study imply that RFID systems can be used to improve the efficiency of various manufacturing operations in companies. This study also provides IT professionals with practical guidelines for an effective implementation of RFID systems. In other words, it provides IT practitioners with the information on the success factors for implementing RFID systems as well as potential problems and solutions to them when implementing RFID systems.

도장공정 휘발성 유기화합물 회수를 위한 분리막 시스템의 현장 적용성 평가 (Field Application of the Membrane System for the Recovery of VOCs from the Automobile Painting Process)

  • 최휘문;조순행;김순태;이충섭;남상용
    • 멤브레인
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    • 제23권2호
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    • pp.129-135
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    • 2013
  • 도장공정에서 발생되는 휘발성 유기화합물의 회수를 위하여 중공사 분리막 모듈을 이용한 공정을 준비하여, 공급압력과 시간변화에 따른 휘발성 유기화합물의 회수에 대한 특성평가를 실시하였다. 중공사 분리막 모듈을 도장공정에 직접 적용한 결과, 투과된 휘발성 유기화합물의 농도는 투과시간과 압력의 증가됨에 따라 증가되었으며, 단일공정보다 다단공정이 더 우수한 분리성능을 나타내는 것을 확인하였다.

자동차 도장 공정의 셋업 감소 방법 모델링 및 시뮬레이션 분석 (Modeling and Simulation Analysis of the Setup Reduction Method in Automobile Painting Process)

  • 한용희
    • 한국시뮬레이션학회논문지
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    • 제18권3호
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    • pp.147-154
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    • 2009
  • 본 연구에서는 자동차 도장 공장의 가장 큰 낭비 요소인 상도 공정의 세정 비용의 절감 및 환경 보호를 목적으로 상도 공정 이전의 각 컨베이어 연결점에서의 운영 알고리즘 변경시의 셋업 감소 효과를 시뮬레이션 모델링을 통해 분석하였다. 또한 본 연구의 동기가 된 도장 공정에서의 세정 비용 최소화 프로젝트 및 도장 공장 현황에 대해 설명하였다. 시뮬레이션 결과 컨베이어 연결점에서의 운영 알고리즘 개선시 현재 1.8대의 그룹화 효율을 2.5대 수준으로 향상시킬 수 있음을 알 수 있었다. 본 연구에서 적용한 접근법을 사용할 경우 그룹화 효율 향상에 별도 설비 투자가 필요 없고, CRS(Color Rescheduling Storage) 설치와 병행 적용하여 그룹화 효율을 더욱 향상시킬 수 있는 이점을 가지고 있다.

Hole Filling Algorithm for a Virtual-viewpoint Image by Using a Modified Exemplar Based In-painting

  • Ko, Min Soo;Yoo, Jisang
    • Journal of Electrical Engineering and Technology
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    • 제11권4호
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    • pp.1003-1011
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    • 2016
  • In this paper, a new algorithm by using 3D warping technique to effectively fill holes that are produced when creating a virtual-viewpoint image is proposed. A hole is defined as the region that cannot be seen in the reference view when a virtual view is created. In the proposed algorithm, to reduce the blurring effect that occurs on the hole region filled by conventional algorithms and to enhance the texture quality of the generated virtual view, Exemplar Based In-painting algorithm is used. The boundary noise which occurs in the initial virtual view obtained by 3D warping is also removed. After 3D warping, we estimate the relative location of the background to the holes and then pixels adjacent to the background are filled in priority to get better result by not using only adjacent object's information. Also, the temporal inconsistency between frames can be reduced by expanding the search region up to the previous frame when searching for most similar patch. The superiority of the proposed algorithm compared to the existing algorithms can be shown through the experimental results.

에지 밀도를 이용한 회화적 렌더링 (Painterly Rendering using Density of Edges)

  • 이호창;박영섭;윤경현
    • 한국멀티미디어학회논문지
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    • 제10권2호
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    • pp.187-199
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    • 2007
  • 회화적 렌더링의 궁극적인 목적은 주어진 영상을 가지고 사람이 직접 그린 듯 한 회화적 느낌을 표현하는 것이다. 이러한 회화적 느낌을 표현하기 위한 요소에는 브러시의 굵기, 방향, 질감, 그리고 생성된 브러시가 캔버스에 그려질 것인가를 판단하는 기준설정 등이 있다. 본 논문에서는 에지 밀도를 이용해 브러시가 캔버스에 그려질 것인가를 판단하는 기준을 설정하는 알고리즘을 제시한다. 에지밀도란 일정 영역에서의 에지의 양을 나타낸다. 이와 함께 정적 격자 단위로 그려질 위치를 찾는 것이 아닌 동적 격자단위로 찾아가는 방법을 사용하고 브러시의 일관된 방향성을 위해 방향 보간을 한다. 또한 텍스처를 가진 다양한 브러시를 사용하여 질감을 표현한다. 에지의 밀도정보를 이용한 그려질 판단 기준설정, 통적 격자에 의한 위치선정, 일관된 브러시의 방향, 그리고 텍스처를 사용한 질감 표현 과정들을 통해 더 사실적인 오일 페인팅(oil painting)의 효과를 얻을 수 있다.

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