• Title/Summary/Keyword: Conservation treatment

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Applicability of Volatile Corrosion Inhibitor and VCI Films for Conservation of Artworks (미술작품의 보존을 위한 기화성 방청제 및 방청필름의 적용성 연구)

  • Beom, Dae Geon;Han, Ye Bin
    • Journal of Conservation Science
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    • v.36 no.2
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    • pp.82-92
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    • 2020
  • Modern artworks are constructed using a variety of materials and techniques. Sculptures, which predominantly consist of metals, usually have different shapes and consist of different material mixtures. The structural and material properties of these sculptures are often controlled by conservation treatment methods. However, the application of existing treatment methods is challenging at times, indicating that more diverse treatment materials and techniques are necessary. Therefore, in this study, a treatment method that employs volatile corrosion inhibitor(VCI) powder, rather than an anti-corrosion solution, for the conservation and management of metal artworks was used. VCI powder and VCI films containing VCI powder were used, and the results obtained confirmed that both of them showed anti-corrosion effect. Only a slight change in the chromaticity of metal samples was observed, and compared to the untreated samples, the application of the VCI powder resulted in a decrease in the rate of corrosion by half. Moreover, VCI film tests revealed that comparing to the untreated or polyethylene film-treated samples, VCI film treatment resulted in a decrease in the occurrence of corrosion compounds. The contact angle, surface energy, and surface electrical resistance were measured, and the evaluation of these surface properties established the anti-corrosion effect of VCI. Additionally, direct application of VCI and VCI films on actual sculptures further confirmed the anti-corrosion effect of VCI.

Conservation Treatment of the Plate Armour Excavated from the No. 2 Tomb, Daeseong-dong, Gimhae (김해(金海) 대성동(大成洞) 2호분(號墳) 출토(出土) 갑옷(판갑(板甲))의 보존처리(保存處理))

  • Oh, Kwangseob;Kim, Midori;Lim, Jihyun;Kang, Jungmoo
    • Conservation Science in Museum
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    • v.4
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    • pp.41-46
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    • 2003
  • Remarkable features, such as neck guard and plate designed the shape of a duck, are identified in the process of conservation for the plate armour excavated from the No. 2 tomb, Daeseong-dong, Gimhae. We considered that should be careful for treating this kind of artifacts, especially when restoring to its original. For this purpose, we thoroughly studied the endurance of materials for restoration and applied the techniques in reference to the traditional method.

A Study on the Application of Filler to the Bark of Wooden Sculpture (목제 조각품의 수피부에 대한 충전제 적용 연구)

  • Kim, Young Mok;Kwon, Hee Hong;Kim, Soo Chul
    • Journal of Conservation Science
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    • v.37 no.2
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    • pp.135-143
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    • 2021
  • Conservation treatment that involved filling the lifting parts of wooden cultural heritage is carried out by obtaining wood or wood powder of the same species and mixing it with synthetic resin or natural glue to charge the blank area. Various concentrations and mixing ratios of adhesives and additives are used, depending on the type and condition of the target. Accordingly, in this study, we determined the conditions of the filler suitable for conservation treatment of wooden sculptures with lifted or separated bark in the National Museum of Modern and Contemporary Art. The optimal filler conditions for each adhesive were selected based on drying speed, shrinkage and expansion rates, and physical deformation degree. Then, to verify their actual applicability, these fillers were applied to wood and exposed to high-humidity environment and their cross-sections were observed. The fillers showed stable application in the following order: animal glue, PVAc adhesive, acrylic adhesive. In conclusion, a 1:2 mixture of animal glue and wood powder is a suitable filler for conservation treatment of wooden sculpture with lifted bark. The results of this study suggest appropriate ways to stabilize the bark that was lifted or separated from a wooden sculpture, thus enabling the future conservation treatment of the artworks under similar conditions.

Evaluation of Eligibility and Utilization of Breast Conservation Treatment in an Asian Context

  • Tan, Mona Poh-Choo;Sitoh, Nadya Ying-Yue;Sim, Amanda Shi-Ting
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.11
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    • pp.4683-4688
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    • 2014
  • Background: Breast conservation treatment (BCT) has long been recognised to provide survival outcomes equivalent to mastectomy for the treatment of breast cancer. However, published reports of BCT rates in Asian communities are lower than those from Western countries. This study sought to investigate the eligibility and utilisation of BCT in a predominantly Asian population. Materials and Methods: All patients treated surgically by a single surgeon at a private medical facility between 2009 and 2011 were included in the study. Patients were deemed to have successful BCT if they underwent breast conserving surgery with pathologic clear margins and completed all recommended adjuvant treatment. Those who did not complete adjuvant treatment were excluded from the analysis. Results: Data from a total of 161 patients who underwent treatment during the study period were analysed. The mean age was 48.8 years. One hundred and six patients (65.8%) were of Chinese ethnicity, 12 were Indian (7.5%), 11 were Malay (6.8%), 18 were Caucasian (11.2%) and 14 (8.7%) were of other Asian ethnicity. One hundred and thirty-eight women (85.7%) underwent BCT. Of the 23 (14.3%) who underwent mastectomy, 8 (5.4%) elected to undergo a mastectomy despite being eligible for BCT. In total, it was assessed that 146 of 161 patients (90.7%) were eligible for BCT and utilisation was 94.5%. Conclusions: In this study, eligibility, utilisation of BCT and eventual successful breast conservation rates are similar to published rates in Western communities. Additional research is needed to investigate the reasons for the lower published BCT rates in Asian countries and determine ways to improve them.

Preparation and Physical Properties of Epoxy with Improved Yellowing Resistance for the Preservation of Stone Cultural Heritage (석조 문화재 보존용 저황변 Epoxy의 제조 및 물성 연구)

  • Lee, Seungyeon;Oh, Seungjun;Wi, Koangchul
    • Conservation Science in Museum
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    • v.26
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    • pp.1-12
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    • 2021
  • The bisphenol A epoxy resin currently used for the conservation of stone cultural heritage items is known to suffer from yellowing discoloration. In order to mitigate this yellowing and explore the availability of more diverse materials for the conservation of stone cultural heritage items, a hydrogenated Bisphenol A-based epoxy resin was prepared and compared with the epoxy resin currently used in the conservation treatment of stone cultural heritage items. The newly prepared epoxy resin showed improved physical properties relative to the existing materials, especially in terms of tensile strength, adhesion, and machinability, while the yellowing discoloration was reduced by a factor of roughly five to eight. The results suggest that epoxy resin could be used as a stable material for the conservation treatment of stone cultural heritage items, most of which are located outdoors.