• Composites Research
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• v.18 no.5
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• pp.1-8
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• 2005

Among many fabrication methods of composite materials, filament winding is the most effective method for fabricating axis-symmetric structures such as pressure tanks and pipes. Filament wound pressure tanks are under high internal pressure during the operation and it has the complexity in damage mechanisms and failure modes. For this reason, it is necessary to monitor the tank through its operation as well as whole fabrication process. A large number of sensors must be embedded into multi points of the tank from its fabrication step for monitoring the whole tank. Fiber optic sensors, especially fiber Bragg grating(FBG) sensors are widely used for various applications because of good multiplexing capabilities. However, we need to develop the embedding technique of FBG sensors into harsh inner environment of the tank far the successful embedment. In this paper, we studied the embedding technique of a number of FBG sensors into filament wound pressure tanks considering multiplexing.

• Conservation Science in Museum
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• v.27
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• pp.23-38
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• 2022

The standing plaster figure entitled is an early work from Choi Man Lin's 'Eve' series. It reflects the aesthetics of abstract sculpture in the period following Korea's liberation from Japanese colonial rule. Modern and contemporary sculptures can be made from a wide variety of materials, so the particular selection of materials and expressive techniques are indicative of both the artist's intentions and the zeitgeist of the moment. In this regard, the materials and production techniques used in provide important basic data for the chronological study of Choi's artistic development. In this study, scientific analysis was conducted to reveal the production techniques used in the work. The scope of appropriate conservation treatment was decided through consultation between several people with decision-making authority. First, the internal structure was inspected using X-CT scanning, and a material analysis was conducted to identify the formal characteristics, materials, and production techniques found in the work. As the analyses revealed the work to be in a relatively stable state, only minimal conservation treatment was applied based on the opinions expressed by the institution housing the work, by a former assistant of the artist, and in an interview granted by the artist during his lifetime.

• Journal of Conservation Science
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• v.19
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• pp.43-56
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• 2006

We checked the conditions and material properties after producing the lime finishing layers with a mortar mix of processed lime. In addition, we reproduced the lime finishing layers of the Koguryo Tomb Murals, colored the layers with a few different techniques and identified the characteristics for each painting technique. As a result of the experiment, we could infer the producing techniques as well as teaming the conditions and properties of the lime finishing layers of the Koguryo tomb murals, and examined the maintenance of the lime finishing layers. Of those samples produced under various conditions, the layers of slaked lime, which were obtained after being hydrated underground for a long time, showed quite a good condition. Thus the slaked lime mixes produced through particular hydration methods are judged to increase the maintenance of the lime finishing layers of the Koguryo Tomb Murals. Mostly, the paints of Koguryo Tomb Murals indicated that they have similar conditions with the samples produced with a secco method. In addition, Considering the compositional forms of the painting layers and the boundary layers which formed between the painting layers and the finishing layers, we can verify that, in some cases, the conditions of the painting layers of the Koguryo tomb murals are similar to those which were produced with a combination of fresco and secco.

• Korean Journal of Heritage: History & Science
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• v.53 no.1
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• pp.34-51
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• 2020

In order to clarify the lime-based building method used in the Joseon Dynasty, lime materials, production techniques, and mixing methods recorded in ancient literature were examined. In ancient Joseon Dynasty literature, the use of low grade limestone as a raw material was recorded, and the use of pozzolanic materials such as Hwangtoh, white clay, and roof tile powder as mixing aids to enhance the strength of lime was recorded. In addition, various lime hydration and mixing methods were recorded, and based on re-experiments carried out with regards to this, a physical property evaluation was deemed to be required in accordance with the various types of raw lime materials, lime hydration methods, and mixture ratios. In the early Joseon Dynasty, lime was used for various aspects, but frequent problems were experienced due to lack of supply and poor production techniques. In the late Joseon Dynasty, lime production techniques developed along with mass production. Based on analysis of the manufacturing techniques of Hoegwagmyo lime mortar in the 16^th and 18^th centuries during the Joseon Dynasty, it was found that mixing ratios and the methods described in the ancient literature had been applied. It was confirmed that the mixing ratio differed depending on mixing materials and lime quality. Since the mixing ratio of Hoegwagmyo lime mortar changed over time and it was produced strictly on the basis of a guidebook, it is believed that if continuous scientific analysis of the Hoegwagmyo lime mortar production method were carried out, this would be helpful for ascertaining the chronological methodology of Hoegwagmyo.

• Proceedings of the Korea Contents Association Conference
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• 2006.11a
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• pp.840-844
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• 2006

2차원 이미지는 오래전부터 발전되어온 훌륭한 표현 방법 중 한가지 이다. 하지만 단순한 2차원 이미지만을 가지고 보정과 편집을 통해 다양한 효과를 표현하는데 있어 여러 가지 한계가 있다. 본 논문에서는 2차원의 평면 이미지인 나비와 춘란의 이미지를 사용하여 나비의 날개짓과 춘란의 생장을 표현함으로써 단순한 2차원 평면 이미지를 사용하여 3차원 공간상에서 움직임과 동적인 느낌을 강조한 3차원 영상 제작기법을 구현하고자 한다. 이러한 영상제작기법은 동적인 효과를 가진 고품질의 영상을 쉽게 제작할 수 있기 때문에 개인 뿐만 아니라 전문 방송과 영상 매체에 효율적으로 적용할 수 있다는 장점을 가지고 있다.

• Fire Science and Engineering
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• v.21 no.2 s.66
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• pp.14-23
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• 2007

In this thesis, we analysed urban fires and developed the predictive mapping technique by using GIS and spatial statistics. It presented the correlation between the fire data of last 5 years ($2001{\sim}2005$) and the factor of civilization environment in Daegu city. We produced a model of fire hazard predictive map by analyzing uncertainty of fire with the quadrat analysis and the poisson distribution.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.353-354
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• 2012

최근 입체영상구현 기술연구는 현실감 있는 영상을 제작하기 위해서 다양하고 새로운 영상 제작방법들이 시도되고 있다. 하지만 입체영상 재현의 기술적 문제에 집중되어 있고 3D 그래픽스를 기반으로 한 입체영상 제작 기술에 관한 연구는 부족한 실정이다. 또한 그래픽스 환경에서 입체영상콘텐츠에 대한 입체감을 극대화 할 수 있는 기법이 필수적이다. 따라서 본 연구는 3차원 입체영상을 제작하는 과정에서 그래픽스 환경에서 실재감 있는 영상을 제작하기 위한 다양한 입체제작 원리와 제작을 활용한 영상보정 기법을 사용하여 키스톤 왜곡에 대한 현상을 보정하고 구현 가능한 제작방법을 제시하였다.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.05c
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• pp.518-523
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• 2002

우리는 생활 속에서의 원활한 의사소통을 위해 수 많은 관계와의 좋은 인터페이스를 여러 각도로 요구하며 살고 있다. 본 논문에서는 효율적인 사용자 중심의 인터페이스를 설계하기 위하여 문맥조사를 인터페이스 디자인 초기단계에 적용하는 프로토타입 제작기법을 고안하였다. 그 적용사례로 ATM(현금지급기)를 시뮬레이션 하여 분석한 결과, 기존의 시스템보다 개별 사용자의 현금지급기 서비스 처리 수행속도가 평균 40초 이상 단축되었다. 사용자 이용 시간의 단축은 비용절감과 만족도의 향상을 의미한다.

• Conservation Science in Museum
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• v.20
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• pp.31-48
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• 2018

The Geumganasa Temple site two Ridege-end tiles at the Buyeo National Museum(The Buyeo2150-1 and 2150-2, hereinafter referred to as 2150-1 and 2150-2) were excavated the Geumgangsa Temple site. They provide important materials for investigating the shapes and production techniques of the ridge-end tiles of the time since their lower portions remain relatively intact. This study is intended to examine whether the two ridge-end tiles were identical. Conservation treatment, including removal of foreign substances, was conducted in preparation for observation with the naked eye to compare the formal features and production techniques of the two examples. The study revealed that these ridge-end tiles shared formal features such as surface color, clay composition, shape, size, and decoration; however, they differed in terms of production technique. The 2150-1 tile was made by assembling a separately-made body and wing and has no hole through the back, while the 2150-2 tile had its body and wing made as a single unit using long clay plates and features circular holes in the back. It was revealed that one portion of the body of both tiles was intentionally tilted during the production process.

• Cartoon and Animation Studies
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• s.12
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• pp.74-85
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• 2007

The animation exercises its influence all over the our lives, specially it has originated the new film industry by combining and applying with movies and CF. The current of time being active of animation industry brought about many changes to all the field of making films, planning and consumption. This paper is written for to inspect animation techniques that has developed to expand and break the limit of the animation's processing and expanding the part of expression. Specially by analyzing which is made by PIXAR, inquired how the 12 Disney animation skills were applied. As a result, the 12 Disney animation skills were combined to express one natual movement. Even though is 3D animation made by not Disney but PIXAR and made in 2004, it was applied and followed the 2D animation's the processing skill in 1987. Consequently, we could know even if the production, the way to produce and the time change, the exact same way of the 1987's producing skill has applied for now.