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  • Book, library and information science  (2)
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  • Book, library and information science  (2)
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  • 1
    Online Resource
    Online Resource
    Walter de Gruyter GmbH ; 2020
    In:  Restaurator. International Journal for the Preservation of Library and Archival Material Vol. 41, No. 2 ( 2020-05-26), p. 69-86
    In: Restaurator. International Journal for the Preservation of Library and Archival Material, Walter de Gruyter GmbH, Vol. 41, No. 2 ( 2020-05-26), p. 69-86
    Abstract: The crystallinity indices (CrI) of Chinese handmade papers were investigated using the X-ray diffraction (XRD) method. Four Chinese handmade papers, Yingchun , Zhuma , Yuanshu and Longxucao papers were used as model substrates of mulberry bark, ramie, bamboo and Eulaliopsis binata papers, respectively. Two forms of the paper samples, paper sheets and their comminuted powders, were used in this study. The results showed that their XRD patterns belong to the cellulose-I type and I β dominates the cellulose microstructure of these paper samples. Moreover, it was found that the microstructures and CrIs of cellulose of these papers were changed by the grinding treatment. This work suggested that the sheet form of the handmade papers is suitable to determine CrI by XRD, despite the contribution of non-cellulosic components in the papers. The order of CrIs for these paper sheet samples was Yingchun , Zhuma , Longxucao and Yuanshu papers. Besides CrIs, differences in cross-sectional areas of the crystalline zone of cellulose can be used for comparing different types of handmade papers. It was also found that the CrIs and crystallite size of paper cellulose varied between the sheet samples and the powder samples, illustrating that the pulverisation has a negative influence on the microstructure of the handmade papers.
    Type of Medium: Online Resource
    ISSN: 1865-8431 , 0034-5806
    RVK:
    Language: Unknown
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2020
    detail.hit.zdb_id: 2066965-3
    SSG: 24,1
    Location Call Number Limitation Availability
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  • 2
    Online Resource
    Online Resource
    Walter de Gruyter GmbH ; 2023
    In:  Restaurator. International Journal for the Preservation of Library and Archival Material Vol. 44, No. 3 ( 2023-09-26), p. 245-257
    In: Restaurator. International Journal for the Preservation of Library and Archival Material, Walter de Gruyter GmbH, Vol. 44, No. 3 ( 2023-09-26), p. 245-257
    Abstract: Due to equipment limitations in the early shooting of video files, and the damage and aging in the later file storage process, some historic video materials in video archives can easily suffer from defects such as poor action coherence. This paper proposes an intelligent enhanced repair method for archival videos. The method first obtains the frame rate of the input video, then calculates the dynamic coefficient of the video according to the frame rate and duration number, uses the artificial intelligence algorithm Super-SloMo technology to fix the problematic digital video to the required frame rate, improves the video's dynamic coefficient, and finally achieves the purpose of getting the enhanced repaired digital copies of the original video materials from video archives. This paper also proposes an intelligent enhanced repair prototype system based on the method. The experiment shows that the enhanced repair effect is effective and improves the clarity and coherence of the video. Users get more coherent copies of historic video materials. This solves the problem of the poor perception caused by the loss of frames, preserves the original information, and makes the information obtained from archival videos intuitive.
    Type of Medium: Online Resource
    ISSN: 0034-5806 , 1865-8431
    RVK:
    Language: English
    Publisher: Walter de Gruyter GmbH
    Publication Date: 2023
    detail.hit.zdb_id: 2066965-3
    SSG: 24,1
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
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