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Restoration Report of Bomboo-Plated Inkstone Case (조선시대(朝鮮時代) 주칠죽장연함(朱漆竹裝硯函)의 수리(修理))

  • Yi, Yong-hee;Yu, Hei-sun;Kim, Kyoung-su
    • Conservation Science in Museum
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    • v.2
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    • pp.35-40
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    • 2000
  • Conservation Science Lab. of the National Museum of Korea recovered Bamboo-plated inkstone case which is used for keeping inkstick, inkstone and inkstone water container by using traditional lacquering and wooden art technology. Texture and construction method of wood, ingredients for lacquering and the method, and the design were analyzed in order to restore the original manufacturing method. Especially, perfect restoration of partially damaged lacquer surface is the most important aspect in restoring Bamboo plated inkstone case, therefore focus was put on investigation of surface lacquering. First, lacquering surface sample was taken off from the object and processed into flake and observed with transmission microscope in order to investigate lacquering method and the pigment in the lacquering surface was analyzed with XRD and SEM-EDS. The result showed that the object was decorated with thin-layered bamboo in the surface which is made of Royal paulownio. and lacquered several times with the mixture of Hematite(Fe2O3) and Cinnabar(HgS) in the remaining part.

Love Stories in Korean TV Series which are popular in Japan: Comparison between Love Stories in Korean TV Series and Japanese TV Series (일본에서 인기 높은 한국드라마의 연애스토리: 일본의 연애스토리와의 비교)

  • Nago, Mari
    • The Journal of the Korea Contents Association
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    • v.14 no.3
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    • pp.69-79
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    • 2014
  • In recent years, the number of love stories in Japanese TV series are decreasing. Comparing this with Korean popular TV series in Japan, it was found that Korean TV series have the following differences. In the Japanese series, the main characters were mostly from common origin. The conflicts within each relationship stage illustrated the conflicts between characters and their surroundings, as well as the conflicts which commonly arise in real life, that with the self. Confessions of love in the Japanese series used simpler expressions. Some couples did not even say "I love you". Further, when love was threatened, rarely was deep attachment shown. There were even cases where the main characters did not end up as a couple. On the other hand, there often existed a class difference between the male and female main characters in the Korean series and conflicts mostly arose from differences of environment, illness, love rivals, and etc. Every couple verbally confessed their love and they used more passionate expressions of love than in the Japanese series, and when love was threatened no man backed down and each showed his deep attachment. Finally, there were happy endings for everyone even after the many complications.

MARGINAL DISCREPANCY AND RETENTION FORCE OF CONICAL TELESCOPE OUTER CROWN WITH CO-CR-TI ALLOY (Co-Cr-Ti 합금으로 제작한 conical telescope 외관의 변연적합도와 유지력에 관한 연구)

  • Jung, Hi-Chan;Jeong, Chang-Mo;Jeon, Young-Chan;Lim, Jang-Seop
    • The Journal of Korean Academy of Prosthodontics
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    • v.38 no.2
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    • pp.214-225
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    • 2000
  • The purpose of this study was to investigate the effects of investing conditions on the marginal discrepancy of conical telescope outer crown with Co-Cr-Ti alloy(Dentitan) and to compare the marginal discrepancy and the retention force of outer crowns using different pattern materials(plastic foil, casting wax, pattern resin). To evaluate the effects of investing conditions on the marginal discrepancy, patterns with plastic foil were invested under three different liquid/powder ratio conditions using phosphate bonded investment(Univest-nonprecious): standard, 10% decreased and 10% increased. At each liquid/powder ratio condition, metal ring was lined with single or double layers of ceramic ring liner. The marginal discrepancy of outer crown at different investing conditions was measured by ${\times}100$ compact measuring microscope(STM5, Olympus, Japan). For measurement of the marginal discrepancy and the retention force of outer crown using different pattern materials, the investing condition of 10% decreased liquid/powder ratio and double layers of ring liner was selected because this investing condition resulted in the best fit of outer crown. Marginal discrepancy was measured in the same way above and retention force on universal testing machine. Under the conditions of this study, the following conclusions were drawn: 1. The thickness of ring liner had more influence on the marginal discrepancy of outer crown than the liquid/powder ratio, and the acceptable marginal fitness could not be expected at the investing condition directed by investment manufacturer 2. There were no differences in the marginal discrepancy of outer crown among three different pattern materials(P>0.05). 3. Casting wax showed the greatest retention force(1640g) of outer crown, followed by pattern resin(1110g), plastic foil(820g). However, there was no significant difference between plastic foil and pattern resin(P>0.05). 4. Plastic foil showed the least variation in marginal discrepancy and retention force.

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MARGINAL FIDELITY AND FRACTURE STRENGTH OF IN-CERAM CROWNS ACCORDING TO VARIOUS RESIN CEMENTS (접착재의 종류에 따른 In-Ceram 도재관의 변연적합도와 파절강도에 관한 연구)

  • Lim, Ju-Hwan
    • The Journal of Korean Academy of Prosthodontics
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    • v.36 no.6
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    • pp.888-899
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    • 1998
  • In-Ceram system is one of contemporary esthetic all ceramic restorations and has relatively high flexural strength. The purpose of this study was to evaluate the marginal fidelity according to type of resin cement and measuring position, and to evaluate fracture strength according to type of resin cement. In this study, twenty seven In-Ceram crowns were fabricated on the metal master die of prepared maxillary right central incisor and devided into three groups. All specimens were cemented with Panavia 21 (group PV), Super-bond (group SB) and Lute-it (group LI) on the metal master die. After cementation, specimens were measured marginal gap between the margin of the In-Ceram crown and the finishing line of metal master die by using a stereomicroscope (SZ-ST, Olympus, Japan). Marginal gaps were recorded at the labial, lingual, mesial and distal measuring points on the metal master die. For the mesurement of fracture strength, lingual surfaces of cemented specimens were loaded at a distance of 1mm from incisal edge by using the Autograph S-2000 (Shimadzu, Japan). The results of marginal fidelity and fracture strength were statistically analyzed with the SPSS version 8.0 programs. The results of this study were as follows: 1. In comparison of marginal fidelity according to the measuring points, there was no significant difference. 2. The marginal fidelity according to the type of resin cement was decreased in order of group $LI\;(63.75{\mu}m),\;SB\;(77.78{\mu}m),\;PV\;(86.53{\mu}m)$, and there was significant difference between group LI and PV (p<0.05). 3. The fracture strength according to the type of resin cement was showed descending order of group $LI\;(60.00kg/cm^2),\;SB\;(56.80kg/cm^2),\;PV\;(56.11kg/m^2)$, but there was no significant difference.

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The Neurophysiology of Poetic Feelings' Partial Pressure and Diffusion -Focusing on Cho Ji-Hoon's Poem Dense Forest (시적 감정의 분압과 확산의 신경생리학 -조지훈의 시 「밀림(密林)」을 중심으로)

  • Park, In-Kwa
    • Journal of the Korea Convergence Society
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    • v.9 no.6
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    • pp.147-154
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    • 2018
  • The purpose of this study is to clarify the structure of healing coded through transcriptional activity in the poem of Cho Ji-Hoon in the aspect of literary therapy. In particular, the search for how the codes of emotion are activated through neurophysiologic synapse. The variation of emotional codes developed in Cho Ji-Hoon's poem is in line with the encoding of literary therapy. Emotions emanating from poetic statements stimulate the transition of new emotions and activate emotions of healing. Cho Ji-Hoon's poem fuses emotions through the floods of various poetic transitions. It is then forming an overall healing forest. The healing content is discussed by the structure of transition, and all the structures are linked to the contents of healing. It is a greater part of sad lyricism by the action of descent and ascension, and green aesthetics of the leaves. In the future, if Cho Ji-Hoon's research on poetry is activated, we will be able to meet genuine stories about his natural and literary healing life.

CLINICAL EVALUATION OF AMALGAM BONDING : TWO YEARS FOLLOW-UP (접착형 아말감의 2년 후 임상적 평가)

  • Ryu, Phil-Jun;Hahn, Se-Hyun;Kim, Chong-Chul
    • Journal of the korean academy of Pediatric Dentistry
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    • v.28 no.3
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    • pp.530-534
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    • 2001
  • Many dental practitioners are bonding amalgam to tooth structure. The potential advantage of this procedure, suggested by in vitro test results, are reduced microleakage, which could lead to a reduced incidence of postoperative sensitivity ; increased strength of the prepared tooth ; and retention of restoration in less retentive preparations, with the potential fer conserving tooth structure. Although in vitro studies support this procedure, its efficacy has not been adequately confirmed in the clinical environment. The authors placed traditional Class I and Class II, bonded and unbonded amalgam restorations in 76 teeth. Fuji I Glass Ionomer luting cement was the bonding agent selected. Marginal adaptation were evaluated after two years. the authors found no significant difference in marginal adaptation between bonded and unbonded restorations.

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Characterization and Analysis of Painted Pigments for the Clay Statues in Donggwanwangmyo Shrine, Seoul (서울 동관왕묘 소조상 채색안료의 정밀분석 및 동정)

  • Lee, Chan-Hee;Yi, Jeong-Eun;Han, Na-Ra
    • Journal of Conservation Science
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    • v.28 no.2
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    • pp.101-112
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    • 2012
  • The Donggwanwangmyo Shrine was built in the period of Joseon Dynasty in 1602. There are Clay Statues (Gwanwo, Jangbi, Woojanggun, Juchang, Jojaryoung and so on) enshrined in the inside of the main hall. Original color of these Clay Statues are deteriorated by inorganic pollutant like dust. And the origanal forms were damaged during several process of restorations and repaintings. This study carried out XRD, SEM-EDS, P-XRF and chromaticity measurement for characterization of pigments which painted on Clay Statues. As a result, cinnabar, hematite and red lead were used to paint in pigments for the red and brown colors. Light red pigment was made by gypsum with these minerals that make colors. Graphite and gold were used to color of black and gold pigment, respectively. Green pigment is identified of malachite, atacamite and glauconite. Blue pigment which is clearly painted on Clay Statues is interpreted a morden industrial pigment that were painted at repair work. White pigments are detected calcite, gypsum and silver white. Orpiment and litharge were used to color of yellow and light yellow pigment.

A STUDY ON THE MARGINAL FIT OF ALL-CERAMIC CROWNS USING CCD CAMERA (CCD카메라를 이용한 수종 전부도재관의 변연적합도에 관한 연구)

  • Moon, Byoung-Hwa;Yang, Jae-Ho;Lee, Sun-Hyung;Chung, Hun-Young
    • The Journal of Korean Academy of Prosthodontics
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    • v.36 no.2
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    • pp.273-292
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    • 1998
  • The purpose of this study was to evaluate marginal fit of four all-ceramic crown systems 1) conventional In-Ceram, 2) copy-milled In-Ceram using Celay system, 3) IPS Empress, 4) OPC(Optimal Pressable Ceramic). All ceramic crowns were made on epoxy dies. The fabricated crowns were sandblasted, cleaned with ultrasonic cleansing, silanated, and cemented with Bistite composite resin cement. the selected marginal areas of the crowns were the labial, lingual, mesial, and distal surface. Each selected area of surface was $0.6{\times}1.6mm$ in dimension. The image of each marginal area was captured to computer files using DT-55 Frame Grabber and light microscope connected CCD camera. The marginal gaps were measured every $70{\mu}m$ using computer image analysis program. The results obtained were summarized as follows : 1. The marginal fit of four all-ceramic crowns were significantly different from each other(p<0.01), and mean marginal fit values obtained were $31.42{\pm}16.52{\mu}m$ in conventional In-Ceram, $55.45{\pm}27.90{\mu}m$ in copy-milled In-Ceram using Celay system, $44.36{\pm}24.59{\mu}m$ in IPS Empress, $47.21{\pm}20.42{\mu}m$ in OPC. 2. In the marginal fit of conventional In-Ceraw and copy-milled In-Ceram crowns using Celay system there was no significant difference between mesiodistal and buccolingual surface, but in the marginal fit of IPS Empress and OPC crowns, there was significant difference between mesiodistal and buccolingual surface(p<0.01). 3. The marginal fit of four kinds of all-ceramic crowns was clinically acceptable.

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A Study on the Analysis of Damage Cause for MOF Installed in 22.9 kV Power Receiving System (22.9 kV 수전설비 시스템에 설치된 계기용변성기의 소손원인 판정에 관한 연구)

  • Kim Hyang-Kon;Shong Kil-Mok;Kim Dong-Ook;Choi Chung-Seog
    • Fire Science and Engineering
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    • v.19 no.1 s.57
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    • pp.93-98
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    • 2005
  • The purpose of this paper is to judge the damage cause of instrument transformer(MOF; Metering Out Fit) installed in 22.9kV power receiving system. In the three-dimensional analysis of the restored MOF, the damage pattern progressed from inside to outside, there was no damaged part in the upside. The resistance of the carbonized middle part is roughly $100\kappa\Omega$ and the exothermic temperature at inside is presumed as about $300\~800^{\circ}C$ in the result of metallurgical structure analysis. The structure and the composition rate on metal surface by SEM is similar. In the result of FT-IR analysis, we can observe the absorbtion peak at $1500cm^{-1}\;and\;1730 cm^{-1}$ is small. The high exothermic peak showed at the center part of the coil in the result of DTA.

Variation of Anther and Pistil Length in Rice (수도의 약장, 자약장의 변이)

  • ;Mun-Hue Heu
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.32 no.4
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    • pp.436-442
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    • 1987
  • The variations of the anther and pistil length of some rice cultivars at the different planting density and fertility levels were tested and their inheritance mode was studied. The anther length of a spikelet on a secondary panicle branch was longer than the one of a spikelet on a primary panicle branch. In the cultivar Z97B, both the anther and the pistil length were increased slightly along the increased plant-ing spacings, But, in the cultivar IR43 no general tendency was observed. The fertilizer levels applied n the field did not affect both the anther and pistil length of a given cultivar. In a cross of IR56/IR8, the anther length showed continuous variation with longer anther being recessive in the F2 population. While, the pistil length showed a continuous variation with longer pistil being over-dominance. In all of the crosses which IR56 involved, the general and specific combining abilities were high for both the anther and pistil length. The broad sense heritability for anther length was 0.46, and for pistil length was 0.88. The correlation coefficients of anther length and pistil length were 0.33 for phenotypic and 0.44 for geno-typic.

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