• Title/Summary/Keyword: Cultural Institute

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Studies on the epoxy resins of stone cultural properties (석조문화재 에폭시수지 개발 시험 연구)

  • Kim, Sa-Dug;Kim, Soon-Kwan;Kim, Chang-Suk;Hong, Jung-Ki;Kang, Dai-Il;Lee, Myong-Hee
    • 보존과학연구
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    • s.20
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    • pp.139-154
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    • 1999
  • We tested to obtain the excellent Epoxy resins on the property of matter. Existing Epoxy resins is tested to regulate the viscosity, color and hardening time etc. Benzen-ring structure of Bisphenol A type (AY 103) is replaced by Hydrogenated B.P.A type. And hardener is replaced by Polyoxyalkylene Amine. So we are developed into the two resins(L-30, L-40).To know if this Epoxy resins was fitted to repairing and restoration of stone cultural properties. Three kinds of Epoxy resins (AY 103, L-30, L-40) are tested on the artificial weathering test, freezing-melting test, exposure test etc. As a result of test, L-30 is less the discoloration than that of other Epoxy resins and was superior to the excellent property of matter.

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Antifungal and Insecticidal Activity of Methanol Extracts from 17 Medicinal Plants against Biological Deterioration of Organic Cultural Heritage (약용식물 17종 메탄올 추출물의 유기질문화재 생물학적 열화원에 대한 항진균 및 살충활성 조사)

  • Lim, Jin-A;Choi, Yun-A;Jung, Mi-Hwa;Kang, So-Yeong;Chung, Yong-Jae
    • 보존과학연구
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    • s.29
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    • pp.125-136
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    • 2008
  • To investigate bioactive materials for development of natural conservative agent on organic cultural heritage, methanol extracts from 17 medicinal plants were screened for antifungal and insecticidal activity against 6 wood rot fungi and adult of Lasioderma serricorne. Antifungal activity of extracts was tested by using paper disc soaking method against wood-rot fungi. Among these extracts, the most significant antimicrobial activity was observed from the extract of Coptis japonica at 5 mg/disc against all wood rot fungi tested. The insecticidal activity of extracts was examined by topical application against L. serricorne adults. The extracts from Asarum sieboldii gave 83.3 % mortality at $25{\mu}g/adult$ for 24hr. From these result, the methanol extract from C. japonica and A. sieboldii described could be useful for conservation of organic cultural heritage against biological deterioration by wood rot fungi and L. serricorne.

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Color Difference of Celluloytic Cultural Properties by Fungi (사상균에 의한 지류.섬유질 유물의 색변화)

  • Han, Sung-Hee;Lee, Kyu-Sik;Chung, Young-Jae
    • 보존과학연구
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    • s.17
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    • pp.48-64
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    • 1996
  • We compared the degree of color difference formed by environmental factor(temperature, relative humidity) with fungal growth in order to know how to change the color difference of cellulolutic cultural properties such as Korean papers, cotton, jute and hemp. We concluded, from the result, that the action of fungal growth on celluloytic cultural properties was more hamful than environmental factor. We considered the secretion produced by fungi as the causative agent for stained formation on cellulolytic cultural properties. Alternaria sp. colored allmaterials greyish black, Chaetomium sp. colored cotton and hemp orange, and Penicllium sp. colored cotton, jute and hemp yellowish green. But Trichoderma sp. and Aspergillus sp. didn't show a clear color against each material. It was observed that thymol(120g/$m^3$) was the most effective fungicide to prevent fungal growth.

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Analysis of Cultural Context of Image Search with Deep Transfer Learning (심층 전이 학습을 이용한 이미지 검색의 문화적 특성 분석)

  • Kim, Hyeon-sik;Jeong, Jin-Woo
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.24 no.5
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    • pp.674-677
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    • 2020
  • The cultural background of users utilizing image search engines has a significant impact on the satisfaction of the search results. Therefore, it is important to analyze and understand the cultural context of images for more accurate image search. In this paper, we investigate how the cultural context of images can affect the performance of image classification. To this end, we first collected various types of images (e.g,. food, temple, etc.) with various cultural contexts (e.g., Korea, Japan, etc.) from web search engines. Afterwards, a deep transfer learning approach using VGG19 and MobileNetV2 pre-trained with ImageNet was adopted to learn the cultural features of the collected images. Through various experiments we show the performance of image classification can be differently affected according to the cultural context of images.

Inspirations for China's Cultural Industry Development from the Construction of Korea's Cultural Industry Chain

  • Guo, Pingjian;Fang, Haixia
    • The International Journal of Costume Culture
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    • v.13 no.2
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    • pp.88-92
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    • 2010
  • The purpose of this research was to understand the successful establishment of the cultural industry chain in Korea and discover lessons for China to improve its cultural industry. It was concluded that a one-industry development pattern cannot win in market competition and a cultural industry will strengthen its sustainability only through smoothing its relationship with other industries and establishing a cultural industry chain so as to further development and resist crises together.

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