• Proceedings of the KSR Conference
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• 2002.10a
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• pp.31-37
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• 2002

Rail cars are subject to vibration, impact and wear which can cause severe defects leading to a fatal accident. Thus, they are designed and manufactured in consideration of such factors influencing their service lifetime. Under-frames are composed of steel and support most of load imposed on the car. Steel is very sensitive to corrosive environment and corroded even in a normal service condition. Regular maintenance can Protect steel Parts from corrosion by painting. However, an exposure of defect point to corrosive agents can make corrosion proceed to a considerable depth, which may cause the structure to remain under safety standard. It is necessary to understand corrosion behavior of rail cars in order to estimate unexpected accidents by corrosion.

• Journal of Sensor Science and Technology
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• v.22 no.6
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• pp.444-449
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• 2013

ZnO-based ethanol gas sensors were fabricated by the painting method and their electrical and ethanol gas sensing characteristics were investigated. The ZnO-Pt (1 wt.%) film heat treated at $400^{\circ}C$, for 2 hrs. in air showed the highest sensitivity to ethanol gas in air at an operating temperature of $250^{\circ}C$ The sensitivity of the gas sensors to 1000 ppm ethanol in air at $250^{\circ}C$ was 8.7 and rising time and falling time of the gas sensors were 3.12 minutes and 25 minutes, respectively.

• Proceedings of the KIEE Conference
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• 2006.07e
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• pp.51-52
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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.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2010.10a
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• pp.649-650
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• 2010

This paper construct the sensibility database by extracting sensibility of 28 colors based on 12 color wheel. And, after the large color values are grouped by clustering of input image using k-mean algorithm, sensibility was extracted by matching with color and database. Also, we see the color sensible psychology of child using color distribution of children in painting.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.185-186
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• 2009

In this paper, we explains the process to illustrate the color harmony of the painting by kindergarten students. First pictures of each of the colors to be converted to a vector image is placed. Next, the color balance based on the re-paint colors, each color harmony and disharmony is known. This paper proposed an art education students how to place colors, whether to provide a general education.

• Journal of Drive and Control
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• v.17 no.4
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• pp.15-22
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• 2020

With the need for efficient maintenance technology to reduce maintenance costs for steel bridges, repainting robots are being developed to automate the work in narrow and poor bridge spaces. The repainting robot is equipped with a blasting module to remove paint layers and contaminants. This study developed a prototype monitoring module to be mounted on the repainting robot. The monitoring module analyzes the condition of the painting surface through a camera installed in the front, guides the direction of movement of the robot, and provides the operator with a video to check the working status after blasting through a camera installed in the back. Various image visibility enhancement technologies were applied to the monitoring module to overcome worksite challenges where incomplete lighting and dust occurs.

• Journal of Korea Multimedia Society
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• v.25 no.10
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• pp.1524-1534
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• 2022

This study proposes the classification model of Minhwa genre based on object detection of deep learning. To detect unique Korean traditional objects in Minhwa, we construct custom datasets by labeling images using object keywords in Minhwa DB. We train YOLOv5 models with custom datasets, and classify images using predicted object labels result, the output of model training. The algorithm consists of two classification steps: 1) according to the painting technique and 2) genre of Minhwa. Through classifying paintings using this algorithm on the Internet, it is expected that the correct information of Minhwa can be built and provided to users forward.

• Proceedings of the Korea Information Processing Society Conference
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• 2023.11a
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• pp.432-433
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• 2023

스테이블 디퓨전(Stable diffusion)과 같은 텍스트 프롬프트 입력 기반 이미지 생성 AI 기술의 발전으로 원하는 형태의 고품질 이미지를 누구나 손쉽게 생성가능할 것으로 기대하였으나 대부분의 경우 원하는 이미지를 얻기 위해서는 텍스트 프롬프트를 정교하게 조정해가며 많은 실패를 겪어야만 한다. 이러한 한계를 극복하기 위해 클립 인터로게이터(CLIP Interrogator)와 같은 유사 이미지를 재생성하기 위한 텍스트 프롬프트 추정 기술이 개발되었으며 몇몇 이미지에 대해 뛰어난 결과를 보였다. 본 논문에서는 이러한 텍스트 프롬프트 추정 기술의 활용이 한국화를 재생성할 수 있는지 실험을 통해 가능성을 확인하고 향후 한국화 재생성을 위한 연구 방향을 제안하고자 한다.

• Journal of the Korean Society of Clothing and Textiles
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• v.33 no.12
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• pp.1883-1896
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• 2009

This paper explores the use of Korean wrapping cloths (bojagi) in the late Joseon period and the types of decorations applied to them. Korean wrapping cloths called bojagi are pieces of cloths used by households of all social classes for practical purposes such as wrapping presents and covering food. In addition to the basic purposes, the making of bojagi was also an activity to express the down-to-earth wishes and the satisfaction of creation by the designer. With regard to the decorative feature of Korean wrapping cloths, five types of, patchwork, embroidered, painted, printed, and oiled-paper wrapping cloths, were examined. The patchwork wrapping cloths (jogakbo) show the frugality of Joseon women in addition to the well-developed composition skill of lines and colors. The embroidered wrapping cloths were prepared for special rituals and ceremonies such as weddings. Painted wrapping cloths were decorated with a Chinese-colors technique (called dangchae) or sometimes with black ink painting. For printed wrapping cloths, various sizes of woodblock printings and roller printings were used. Although monotone black ink was the main color applied to the printing, there was also wrapping cloths made from chintz having brilliant fast colors. Oiled-paper wrapping cloths called sikjibo were in use only for covering food. Cut-out work was employed to decorate it.

• The Journal of Art Theory & Practice
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• no.13
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• pp.7-33
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• 2012

The memory of the Korean War is about the time period when people lived toughly during evacuation, due to being exposed to the natural climate such as intense cold or heat without any protection, leaving their comfortable home and living in temporary built shelters which were barely enough to avoid the wind. 'Death is concealed and only the figures of evacuation for survival were expressed, just as how the government ordered. Since the experience of the battlefield is personal and fragmentary, that is broken into pieces, it does not have compatibility. As war is a distorted experience that cannot be placed in a big picture, it is not possible to take a view of the war's big picture. Having this individualized experience as a common collective memory is an issue and it is the will that people tries to pursue. The reason why the evacuees from north to south, and as well as from the south to further south were all able to be adopted as the theme of artworks due to the military action that emptied the occupied territories of the North Korean Army under the forced removal command. In such situations, the natural state of the 'snow' was like a symbol of the 1.4 Recession. The group of people who were thrown into the intense cold displaced the war damage of loosing their base livelihood, and symbolized the obedient citizens who faithfully follow their government's command. The figure of advocating anti-communism is projected as a figure of a refugee during cold winter-time and it contains ones past which he or she obeyed its own country's commands. Evacuation, especially the evacuation during the winter is a visual device that can confirm these kinds of country's command. The consequences were same for the artists as well. Therefore, the situation being communal could be found due to the individual experiences during war are ideological. The image of the refuge shown in the picture played the role of strengthening the consciousness of defecting to South Korea into the meaning of the 'Finding Freedom.' I would like to express that the reason of them leave their home during the harsh winter is in order to avoid the oppression of the Communist Party. The evacuation that people went through was not to 'Finding Freedom', but 'To Survive'. Later, this evacuation has been imprinted as a behavior of choosing free Republic of Korea, which was an ideological issue. Anti-communism was the rule of survival in South Korea society, and people have the tendency to remember what they want to remember. As it is not the people who possesses an incident, but the memory that possesses ones, people cover their memory with disguised plots in order to forget the violence and to live a different prologue. They share the incident of violence as a hurtful memory. The tragedy of the Korean War was the result of Ideology and being in between the powerful nations' rights, but the violence during the war has been depicted as a natural disaster, which was the evacuation in heavy snow.