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      • KCI등재후보

        CT 조사를 통한 청화백자투각연당초팔괘문연적의 3차원적 구조와 제작방법에 대한 고찰

        나아영,황현성 국립중앙박물관 2021 박물관보존과학 Vol.25 No.-

        국립중앙박물관 소장품 청화백자투각연당초팔괘문연적(수정147)을 대상으로 CT 조사를 실시하고 복제품을 제작하여 구조와 제작방법에 대해 살펴보았다. CT 조사를 실시한 결과, 접합선이나 기공이 없는 것으로 보아 하부 동체부 틀을 사용하여 한 번에 찍어 빼낸 후 상부 틀로 찍어 뽑아낸 상부 뚜껑을 서로 접합하였음을 알게 되었다. 특히 하부 동체부의 내기 상면과 연접한 뚜껑 하단면이 서로 접합이 잘 되도록 내면 가운데를 대나무 칼로 거칠게 돌려 깎아 접합면이 누수 되지 않도록 처리하였다. 처음 제작할 당시 물을 담는 연적의 내기(內器)는 도량형 규격에 맞고 틀을 뽑아내기에도 용이한 원통형(圓筒形)으로 만들었을 것으로 짐작되나 상부면과 동체부를 붙이는 과정에서 형태가 사다리꼴로 변형되었을 것으로 여겨진다. 또한 실리콘 복제를 이용하여 원통형 내기로 다시 제작한 후 내기의 용량을 비교 측정한 결과, 3D프린팅을 이용해 복제한 유물 내기의 용량이 152.5㎖인데 반해 원통형 내기의 용량은 대략 168.6㎖로 조선시대 도량형 기준인 ‘량(量)’의 단위로 3홉(약 174㎖)과 유사하다는 것을 확인 할 수 있었다. 원통형 내기의 용량이 조선 후기 도량형 기준과 부합하므로 실제 도공이 팔괘문연적을 제작할 당시 원통형내기를 가진 연적으로 제작하였을 것으로 생각된다.

      • 디지털 기술을 활용한 백자양각연당초문화병의 재복원

        황현성·나아영·홍성혁 국립중앙박물관·(社)동원고고미술연구소 2023 동원학술논문집 Vol.24 No.-

        As part of an inspection-based 2021 data construction project on the conservation status of works housed in the museum storage, a full survey was carried out of items in the National Museum of Korea collection. The surveyed items were categorized as A, B, C, and D level in accordance with their condition. Those labeled as A-grade were items evaluated as suitable for exhibition after conservation treatment. Since 2022, conservation treatment has been carried out on A-grade items based on the condition inspection table. Among them, White Porcelain Vase with Lotus Scroll Design in Relief (Duksoo 5496) had been restored to its original form. However, the color of the material that was used in its restoration based on the kintsugi technique is significantly different from the original white porcelain. Moreover, the leaf motifs in the rim area of the original white porcelain and the inner area of the mouth that was newly attached are not in alignment, and the vessel has been in storage in this misaligned state. Therefore, the re-restoration aimed to rectify the alignment of the designs and the awkward form of the mouth area to a more natural and contiguous manner. Furthermore, we aimed to replace the material that was used with the kintsugi technique in the initial restoration with modern materials so that the restored area would appear similar to the original. Firstly, for the re-restoration, we sought to utilize the existing form and therefore utilized three-dimensional scanning, CT, and printing technologies to reproduce the vessel using epoxy resin, a material commonly used in the present day. Notably, areas that had been restored in an awkward manner using the kintsugi technique were modified and restored to as close to the original state using 3D modeling. Lastly, we plan to further investigate the materials that were used for the kintsugi technique and present the findings as a case for prior research on determining the conservation treatment method of objects that have been restored in a similar manner.

      • 동원 선생 기증품으로 본 과거 복원방법 조사와 제작기술 연구를 통한 과학기술적 재복원

        황현성,나아영 한국고고미술연구소 2021 동원학술논문집 Vol.22 No.-

        By focusing on White-glazed White Porcelain Figurine on a Flat Bed, a work donated by Lee Hong-kun, this paper compares the commercial restoration it underwent in the past with the restoration methods of today and examines its condition with the naked eye and through scientific instruments. Under ultraviolet light, the restored sections are revealed in blue. Such an unusual phenomenon occurs only in the gifts of Lee and Park Byeong-rae, and not in objects that have been restored using today’s techniques. Among these gifts, most of the ceramics that were restored by a commercial method before being donated by Lee to the National Museum of Korea, discolored into yellow significantly. Under ultraviolet light, most of the yellowed parts emitted a blue color. In order to scientifically determine the cause of the blue emission, White-glazed White Porcelain Figurine on a Flat Bed was analyzed using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Spectroscopy (EDS). The analyses discovered that a white pigment containing zinc oxide was added to the coloring material to match the color of the clay and glaze for white porcelain. White-glazed White Porcelain Figurine on a Flat Bed was also analyzed utilizing X-ray Computed Tomography (CT) to see the interior and reveal the production process. The analysis indicated that some parts of the figurine were restored poorly by distorting the original form during the previous restoration. By supplementing these faults, the figurine was restored it closer to the original state. Moreover, X-ray CT analysis revealed the production procedures of this figurine. First, to make the rectangular flat bed, two of four clay slabs were erected to form the front and back sides of the rectangle, and then the other two for the left and right sides were inserted. The four slabs were reinforced by adding clay onto the interior corners. Next, the figurine was modeled by completely filling the gap between the inner and outer molds with clay and attaching it to the bed. Before the figurine was affixed to the bed, a hole was pierced in the top side of the bed to allow air circulation inside the body of the figurine. The hands and arms were then separately attached. The vines on the back of the flat bed were created by cutting out the background of the vines from the clay slab with a bamboo knife. On the other hand, the vines were shaped with clay to form the armrests, which appear to be naturally connected to the vines on the back. Finally, some previously restored vines that distorted the original were restored closer to their original form during the recent restoration process. It is hoped that this study will assist with modern re-restoration through scientific research on previous commercial restoration and further facilitate scientific and systematic research on the production technology and processes of ancient figurative ceramics.

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