• Journal of Welding and Joining
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• 제21권1호
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• pp.42-47
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• 2003

Stainless rolling stocks are usually fabricated by spot welding process without painting. Indentation on the surface of the car body after spot welding injures the beauty of the stainless rolling stocks. In this study, insulated electrode tips to reduce the indentation are developed and applied to the actual spot welding works. The developed tips are composed of head, neck, hole for cooling water, body and resistance material. They provide large surface contact area with the base materials during spot welding and enhance the current density by necking. Experimental results using the developed tips show that small indentation and sufficient tensile shear strength is produced due to large contact area and enhanced current density.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 1999년도 Proceedings of International Symposium on Remote Sensing
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• pp.337-342
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• 1999

Satellite images without value-added processing may be nothing but artistic painting. That is in order to benefit from satellite images acquired from money-drinking satellites, we should utilize the paramount information in scientific world and practical lift that can be extracted from image. Hence, the Satellite Technology Research Center has developed a integrated software called "Valadd-Pro". In this paper, the main components of the Valadd-Pro are briefly introduced, its value-added product are compared with PCI$^{\circledR}$ commercial software. Based on the results, the performance of the Valadd-Pro is superior to that of PCI$^{\circledR}$ on 6000$\times$6000 SPOT panchromatic images.

• 한국환경보건학회지
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• 제26권3호
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• pp.103-110
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• 2000

This study was conducted from January to December in Kwang-ju city, 1999. Calculated methods were studied by emission factors in each industrial species. The results was that total emission rate of VOC was calculated at a mount of 12305 ton/year as coating(49.4) > vehicles(27.4) > gasoline vapors(6.1) > petroleum refineries(5.6) > graphic arts(4.4) > road covering(4.1) > dry cleang(3.0%) respectively. In vehicles emission rate, passenger car and taxi were about 2,700 ton/yr(60%) of total vehicle emission(3,300 ton/yr). The amount of building emission rate was about 1,900 ton/yr(30%) of total coating emission 6,083 ton/yr.

• 산업공학
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• 제9권2호
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• pp.19-37
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• 1996

자동차 도장공장의 마지막 도색공정인 상도공정에서는 도장할 차체의 색상(Color)이 직전에 도장된 차체의 색상과 다르면 스프레이 노즐에 남아있는 직전차체의 도료\를 세정하여 하는데, 이 때 도료손실과 세정비용 등의 색상변경비용(Color Change Cost)이 발생한다. 이러한 비용을 줄이기 위하여 동일한 색상의 차체들이 가능한 한 연속으로 도장될 수 있도록, 상도공정 직적에 동일한 차체들을 모은 저장창고(Color Grouping Buffer)가 필요하다. 본 논문에서는 도장공장의 상도공정에서의 색상변경비용을 줄일 수 있도록 저장창고에서의 차체의 인입, 저장, 인출을 실시간에 제어하는 Color Selection 시스템을 자동화하여 성공적으로 운영하고 있는 사례를 소개한다.

• 패션비즈니스
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• 제5권5호
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• pp.36-48
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• 2001

The Christianity that spread to Egypt in 3rd century in A.D. is called Copt. Coptic Church built a lot of monasteries along the lower stream of Nile River, which produced thousands of text and paintings. Ethiopia is well known for its worship to Virgin Saint Mary and produced many paintings of Virgin Saint Mary in different costumes. The pictures usually came in foldable small books containing 3 pictures. The paintings usually featured Virgin Saint Mary and Jesus Christ dressed as royalty in crowns, saints and angels. There are saints on white horse, mirroring the oriental influence on Coptic painting. This research will look into the patterns and colours on the Coptic textiles, mainly tapestry.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2006년도 춘계학술대회 논문집 전기설비전문위원
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• pp.71-73
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• 2006

Our company(KOWACO) has periodically performed off-line diagnostic test for 14 hydro generators (rated 11 kV over) for 15 years. In this paper, we summarized results of dissipation factor tip-up test and partial discharge test about these generators. Among these, we chose two generators and performed insulation reinforcement (cleaning and varnish Painting). We compared change of insulation condition for the stator winding based upon off-line diagnostic test result before and after repair. Test result shows that insulation condition was improved after insulation reinforcement. This insulation reinforcement has a function to reduce cause of deterioration, so we can know that it extends lifetime of generator and it is a very important factor for stable operation of facilities.

• Nuclear Engineering and Technology
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• 제4권3호
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• pp.229-240
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• 1972

Radioisotopes and their related techniques have recently been applied for scientific conservation works of cultural property and resulted many excellent findings or conservation data which could never be achieved by means of other techniques. Radiocarbon dating have widely been applied for dating the antique of organic origin, whereas the determination of radioactive contents in metal, ceramics, environmental soil, and classical objects could be able to afford many useful informations on the age, genuiness, and archeological significances as it had been produced. Trace quantity of contents of each antique have successfully been analyzed by means of radioactivation analysis or radio active tracer techniques, which could afford important technical data and results for tile conservation of each object. Radiography have also been applied for detecting the internal defects of metal objects and furthermore $\beta$-and ${\gamma}$-ray radiography were proved to be effective for such thin material as textile, painting, and fibres. In this article the detailed principle and procedures of each technique were presented so that the society could be able to make efforts to familiarize all concerns with these modern trends of the conservation techniques of cultural property.

• 미술이론과 현장
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• 제10호
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• pp.63-84
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• 2010

This essay examines how the figure of Liberty has been refashioned in the streets of post-apartheid South Africa, addressing three public art works installed in Johannesburg over the past decade: Reshada Crouse's oil painting Passive Resistance, Marlene Dumas' tapestry The Benefit of the Doubt and William Kentridge's and Gerhard Marx's sculpture Firewalker. Even as these monumental works all reprise Delacroix's Liberty on the Barricades-an icon of the city street and its revolutionary barricades-so too this trio of Liberties have become mere phantoms of their vaunted archetype. Haunted specters, they quarrel with the mythologized chimera of Liberty, taking issue with the fraught tradition of pinning regime change onto the body of the female nude. Drawing instead on South African histories of women's resistance, in which female nudity has been repeatedly marshaled as a form of dissent, the Liberties circling Johannesburg hybridize their European template with local traditions of female political opposition to colonial and postcolonial male authority.

• 한국CDE학회논문집
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• 제16권3호
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• pp.207-215
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• 2011

Due to its large size, a ship is first divided into scores of blocks and then each block is constructed through various shops, such as the assembly shop, the painting shop, and the outfitting shop. However, each block may not be directly moved to the next shop and may be temporarily laid on a block stockyard because the working time in each shop is different. If blocks are laid on the block stockyard without any planning, the rearrangement of the blocks by a transporter are required because the blocks have the different in and out time. In this study, an optimal layout method based on the genetic algorithm was proposed in order to minimize the rearrangement of the blocks in the block stockyard. To evaluate the applicability of the proposed method, it was applied to a simple layout problem of the block stockyard.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2001년도 추계학술대회논문집A
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• pp.73-79
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• 2001

In this paper, shielding effectiveness(SE) of the shielding material of electromagnetic(EM) waves was investigated with actual experiments. The materials used in this study were made up of sputtering, film and powder of conductive materials - Cr, Al, Ag and Cu etc. Also, the polyester film was used as a base material. The experiment was carried out by using a shielding evaluator(Shielding box) TR17302 with an ADVANTEST spectrum analyzer, model R3361C. It was found from the experimental results that silver, copper, aluminum and chromium were good candidates as a shielding material against the EM waves with increasing the SE as the composite was laminated. The characteristics of the SE against the EM waves depended on a mode of preparation of specimen. The effects of density of particles on the SE were studied when the sputtering. The SE strongly depended on the electric resistance by density of sputtering and painting particles. SE increased as the density of particles was increasing.