After occurrence of Cyanobacteria in 1997, Songsan-ri tombs located in Gonju have been investigated to monitor for biological damage. The room temperature of Tomb No.6 was $18.6{\sim}19.8^{\circ}C$ and the relative humidity was 94.3~99.9%. The temperature of Royal Tomb of King Muryeong was $17.3{\sim}18.53^{\circ}C$ and the relative humidity was 73.2~96.45%. The variation of relative humidity increased after setting up air vents. If the outside temperature increases, dew condensation occurs on the floor and the north side. When conditioning equipment operates, the maximum temperature differences between walls is $2.8^{\circ}C$. Bacteria from the air of the tomb and on the surface of the walls outnumbered fungi. 20 species of fungi including Alternaria sp., Aspergillus sp., Penicillium sp., and 19 species of bacteria including Pseudomonas sp., Arthrobacter sp., are identified. Microbes in the tombs may damage cultural heritage. The growth possibility of microbes should be estimated because the microbes in the tombs may damage mural painting. The interrelation between microenvironmental condition and biological damage of mural painting should be researched to come up with an long-term conservation method.
Traditional inorganic pigments applied to dancheong, buddhist painting, and wall painting were produced from natural minerals which were later replaced by synthetic pigments, resulting in the loss of the recipe to prepare mineral pigments. This study examined the domestic occurrence and mineralogical characteristics of green and blue mineral pigments required for the conservation of cultural heritage. Cuprous green-blue mineral pigments were found as the weathering products of waste dumps and ores of abandoned Cu-Pb-Zn sulfide mines. Mineralogical analyses using X-ray diffraction and scanning electron microscopy identified diverse hydrous copper sulfate pigments of green (brochantite and devilline) and blue color (linarite, bechererite, and schulenbergite) with minor green pigments of antlerite and atacamite commonly associated with cerussite, smithsonite, anglesite, and cuprite. Noerok, a green silicate pigment, replaced the fractured basalt lava. Celadonite was responsible for the green color of Noerok, closely associated with opal in varying ratio. Glauconite, green silicate pigment, was identified in the Yellow Sea sediments. Malachite and azurite, the most important green and blue pigments of Korean cultural heritage, were not identified in this study.
The wall painting of Altamira cave "eight-legged wild boar" is often presented as a typical example of long-held desire of humanity for expressing movement. However, the eight legs are the product of so-called "double layer", of two paintings painted in different periods. Nonetheless, the explanation of Altamira cave paintings linking with the origin of animation is constantly reproduced without any particular doubt, verification or citation of sources. The fact of associating eight legs with movement is irrelevant to visual perception transcending time. This should be considered a movement expression code invented in a particular period of time. Sequential photography tried in the late 19th century, in particular, chronography of $\acute{E}tienne$-Jules Marey plays a crucial role in this. Marey's photography of which a series of sequence movements are overlapped in one frame and printed was reflected in painting works of artists including Duchamp and Balla in the early 20th century and formed as movement expression code. Animation manuals started to emerge from that period of time introduced the images of Marey's chronophotography as a way of analyzing and embodying the movement. In sum, the act of considering Altamira cave paintings of eight-legged wild boar as an expression of movement is an error intending to look at the past through today's visual code.
Kim, Jung Heum;Kim, Hwan Ju;Park, Hye Sun;Lim, Sung Jin
Journal of Conservation Science
/
v.33
no.5
/
pp.371-380
/
2017
To investigate the pigments used in modern and contemporary oil paintings, thirty-two paintings by Jiho Oh and Bonung Gu were selected. The white pigment found in the ground and painting layers was identified as lead white (hydrocerussite), zinc white (zinc oxide), titanium white (titanium dioxide in anatase or rutile forms), calcite (calcium carbonate), and barite (barium sulfate). Further, this indicated that pigments differ according to the artist and date of the painting's creation. However, both Oh and Gu used zinc white during the modern and contemporary period, while lead white was replaced by titanium white, barite and calcite. Compared with the overseas studies on pigments and oil paints, the change patterns of pigments were the same with them but the periods of the use were partially different. It seems to be due to the fact that South Korea is linked to the historical background of the art material which was imported from Japan instead of Western countries. Therefore, it is inevitable that any change in the white pigments used for domestic oil paintings occurred at a different time from global transitions. If the results of this study are used in the analysis of art works it is suggested that a database recording such aspects as material properties of oil paints, artistic techniques, and chronology would become important for future conservation science and the study of art history.
Journal of the Korea Institute of Building Construction
/
v.18
no.1
/
pp.33-40
/
2018
Currently, in South Korea, because of reducing the construction period or treating wasted water, there are some cases of missing wet curing for concrete structure even though for high strength concrete. This air curing conditions is considered to cause increased possibility of compressive strength decrease, and increasing drying or autogenous shrinkages. As a solution of shrinkage of concrete, The authors' research team conducted the research on improving durability of concrete with decreasing autogenous shrinkage by adding the oil or fat to induce the saponification. Therefore, in this research, the influence of curing method on compressive strength, shrinkage on evaporation rate of high strength mortar including high volume supplementary cementitious materials (SCMs) was evaluated depending on various curing methods such as air curing, drying after painting emulsified refined cooking oil (ERCO), and drying after 7 and 28 days' wet curing. The experimental result showed the air curing method caused approximately 50% of decreased compressive strength and 1.9 times of increased shrinkage rather than the 28-day-wet curing method, thus it was known that the wet curing significantly influences on performance of high strength mortar using high volume SCMs. However, the ERCO painting curing caused decreased performance of concrete rather than drying after 7 days curing while it caused improved performance of concrete than entire period air curing.
In this study, we compare the properties and estimate the durability of five oil colors that are the most popularly used colors in the conservation of oil paintings. A set of these colors was obtained form four manufacturers each, and their properties were analyzed by conducting deterioration experiments. Subsequently, we observed the colors and performed X-ray fluorescence analysis. As a result of colour observation and XRF analysis, it was confirmed that there are the differences according to the pigment types, mixing rations and the manufacturers even for colors having the same product name. The deterioration test indicated differences in the appearance of the colors ; for instance, the color difference was above 12.0 in most of the samples, including restoration color and acrylic gouache. In the case of Lemon Yellow a lot of discoloration and cracking occurred, and difference in gloss was ob served in Viridian of manufacturer C. Most cracks were ob served in the restoration color obtained from manufacturer B and were assumed to be because of the resin used by the manufacturer. Nevertheless, additional research will have to be conducted by controlling variables in order to find out the cause. Through this study, we demonstrated that retouching materials for conservation of oil painting differed in their physical properties according to the color and manufacturer. Therefore a conservator should be mindful during the selection and use of materials for retouching oil paintings.
This study focused on the constructional concepts, landscape design techniques and changes made of the Sandan(山壇) area in the rear garden of Changdeokgung Palace based on the spatial organization of the zone. The results of this study are as below. Constructional layers that have been maintained throughout the centuries from King Injo(仁祖), King Sukjong(肅宗), King Sunjo(純祖), the Japanese colonial period to the present, were found in the Sandan area. The Sandan area, which was developed with the establishment of Chuiseungjeong(取勝亭) during the ruling of King Injo(仁祖), was created as a resting place for the King, and its usage continued until King Sukjong(肅宗) built Nakminjeong(樂民亭). However, the whole area was reorganized to host ritual ceremonies, where ancestral rites were performed for the mountain gods, after Sandan and Baekunsa(白雲社) were built during King Gojong's reign, before the drawing of 'Painting of Eastern Palaces(東闕圖).' The architectural component used then appears to have been designed to serve ancestral ritual formalities for the god of land, or to satisfy the religious desires of the royal family not fulfilled by Confucian courtesy. These are characteristics that define the Sandan area. Meanwhile, the analysis of the ground plan of the Changdeokgung Palace revealed that the Sandan had been maintained until the Japanese colonial era, but was removed sometime after liberation. The area underwent extensive reform in the early 1970s, when the whole area was developed into a tourist destination called Bingcheon(氷泉). Then, a new road that runs through Bingcheon was laid, and the present condition reflects the construction result of the time. An interview with a person who had taken part in the repair work in the 1970s confirmed that the construction work at the time had the goal of establishing two drainage systems for drinking water and copied the Okryuchon(玉流川) well.
This study aims at identifying of characteristics and types of the pigments used for Dancheong(surface decorative and protective pigments) of Yaksajeon Hall in Gwallyoungsa Temple using a Micro-XRF, XRD, SEM-EDS and thereafter, comparing it with the pigments of the wall painting in the same building and with Dancheong pigments of Daeungjeon Hall. The results can be briefly summarized as two points. First, different types of pigments for red, green and white colours had been applied based on different parts of the building and more than two different pigments had been mixed to produce various colours in so me parts. Second, scientific analysis has confirmed that raw minerals for each colour groups are: Cinnabar, minium and Hematite for red; white clay and oyster shell white($Al_2O_3{\cdot}SiO_2{\cdot}4H_2O$) for white; Atacamite and Celadonite for green; carbon(C) for black; Yellow Ocher for yellow; and Lazulite for blue. Comparative analysis of such result with that of the wall paintings and of Dancheong of Daeungjeon Hall has revealed that similar minerals had been used in overall except that several different pigments had been added or removed for making green, white and yellow colour groups in some parts. In conclusion, the result has displayed that painters had used different ways of producing pigments by a type of painting or a building within the same period or for the buildings in the same buddhist temple compound.
It is called the "Painted lead glaze pottery" that is painted green, brown, yellow over white or light yellow glazed base among glazed pottery in the Northern Qi Dynasty. Even though the white glazed pot painted green with three ears and the yellow glazed jar painted green with long neck is found in the Fan-cui Tomb in Honghetun Village, Anyang City, Henan Province in 1971, these potteries were not focused in academic circles. While the white glazed pottery found with them was thought as the earliest evidence of the white porcelain that the date is clear, it has constantly been discussed so far. In this paper, focused on the painted lead glaze pottery, the materials from tombs and kiln sites are organized, and based on them, the decoration feature and production technique is analyzed. The emergence time of this pottery is checked by the date of tombs and the social value of this pottery is considered by the position of the buried person. The painted lead glaze pottery of the Northern Qi Dynasty has independent character such as porcelain clay, twice firing burning and painting technique over glazed base. This character emerged from several glazed potteries in the Northern Wei Dynasty and it continued to the Northern Qi Dynasty. At last, the white painted lead glazed pottery appeared. The painted lead glaze pottery was formed by the combination of a shape of the ceramic in Southern China and painting technique after the Northern Wei Dynasty in Northern China.
The purpose of this study is to analyze the aesthetic characteristics of traditional Korean patterns appearing on fashion collections from 1990 to 2005. Traditional Korean patterns have been used as an important element to express a Korean image since the 1990s. Frequently used patterns included several kinds of geometric patterns, plant patterns(flower, peony, Four Gracious Plants), and Chinese character patterns. Specifically, since the 2000s, animal patterns such as tiger, Chinese phoenix, and giraffe which were not often used, plant patterns such as arabesque, peony, and flower, and a variety of Chinese character patterns appeared. For the expression techniques, while embroidery and printing was often used in the 1990s, they became varied into printing, beading, embroidery, gold and silver leaf, and hand painting after 2000 as a result of designers' active attempts. The aesthetic characteristics of fashion design with its focus on traditional patterns were analyzed. First, Chinese character patterns and phoenix pattern which were mainly used for a court suit, and show the excellence and unique originality of Korean culture. Second, traditional Korean patterns directly and indirectly imply symbolistic significance of lucky sign and illustrate the use of various lucky sign patterns. Third, traditional Korean patterns such as arabesque or peony were expressed by colorful embroidery to add decorative beauty. Finally, traditional Korean patterns reflect a naturalistic worldview and are completed finished as the design.
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