• Title/Summary/Keyword: Color Concrete

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Evaluation and Physicochemical Property for Building Materials from the Japanese Ministry of General Affairs in Joseon Dynasty (일제강점기 조선통감부 건축재료의 물리화학적 특성과 평가)

  • Park, Seok Tae;Lee, Jeongeun;Lee, Chan Hee
    • Economic and Environmental Geology
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    • v.55 no.4
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    • pp.317-338
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    • 2022
  • Physicochemical characteristics and evaluation were studied by subdividing the concretes, bricks and earth pipes on the site of the Japanese Ministry of General Affairs in Joseon Dynasty, known as modern architecture, into three periods. Concretes showed similar specific gravity and absorption ratio, and large amounts of aggregates, quartz, feldspar, calcite and portlandite were detected. Porosity of the 1907 bricks were higher than those of 1910 and 1950 bricks. All earthen pipe is similar, but the earlier one was found to be more dense. Bricks and earthen pipes are dark red to brown in color within many cracks and pores, but the matrix of the earthen pipe is relatively homogeneous. Quartz, feldspar and hematite are detected in bricks, and mullite is confirmed with quartz and feldspar in earthen pipes, so it is interpreted that the materials have a firing temperature about 1,000 to 1,100℃. Concretes showed similar CaO content, but brick and earthen pipe had low SiO2 and high Al2O3 in the 1907 specimen. However, the materials have high genetic homogeneity based on similar geochemical behaviors. Ultrasonic velocity and rebound hardness of the concrete foundation differed due to the residual state, but indicated relatively weak physical properties. Converting the unconfined compressive strength, the 1st extended area had the highest mean values of 45.30 and 46.33 kgf/cm2, and the 2nd extended area showed the lowest mean values (20.05 and 24.76 kgf/cm2). In particular, the low CaO content and absorption ratio, the higher ultrasonic velocity and rebound hardness. It seems that the concrete used in the constructions of the Japanese Ministry of General Affairs in Joseon Dynasty had similar mixing characteristics and relatively constant specifications for each year. It is interpreted that the bricks and earthen pipes were through a similar manufacturing process using almost the same raw materials.

The Development about Fashion Trend Reflection in a Dmestic and foreign Silver Brand (국내$\cdot$외 실버 브랜드에서의 패션 트렌드 반영에 관한 연구)

  • Chung Sham-Ho
    • Journal of the Korean Society of Costume
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    • v.55 no.2 s.92
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    • pp.1-17
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    • 2005
  • The realistic plan to establish a silver market in the clothing industries has not taken concrete shape, although the interest in the establishment of a silver market targeting the aged as a new custom group Is gradually Increasing because the rapid development of science and medical technology in the 20th century has led to an extension of lift and improvement of living conditions. The specialized business which produces and sells the clothing for the elderly is of small number and most of the clothes for the elderly are manufactured and sold by the companies for women's clothing in which change the size or length of the original works rather than reflect the bodily features of the elderly. The findings indicated that domestic brands showed the coordinated concept of a suit of jacket and slacks or skirts while the clothes were formed with a variety of coordinations centering around single article in the U.S brands. But, there was no difference in the use of natural materials centering around cotton and silk etc. and in the use of embroidery, lace and decorative details between the two countries. The knit brands of knit suit style in Korea were formed with the items focused on pull over and cardigan twin set, while the U.S brands were mainly formed with the design of knit suit style. The domestic knit brands were mostly developed with complicated patterns and gorgeous colors, while most of the U.S. brands were presenting a single or two tone color suit style and evening one-piece dress with a simple and modern style. The sporty casual brands of sporty casual style in Korea had a variety of colors and patterns focused on function and comfort for diverse leisure activities and daily life, while the U.S brands were established to present a variety of styles with the items of single article because they had a separate brand for casual even though it was not a exclusive brand for the elderly This study has a meaning in the presentation of the design idea considering the bodily shape of the elderly compared to the ready-to-wear considering the size alone, by examining the characteristics of bodice according to the physical change of the elderly women, analyzing the design of madam brand and the style of the ready-to-wear, researching the general circumstances of the brand for the elderly women, and highlighting the necessity of the elderly clothing market.

Formation of Efflorescence and Dissolving Experiments for Removing Control on the Stone Pagoda of the Mireuksaji Temple Site, Iksan, Korea (익산 미륵사지 석탑의 백화현상과 제어를 위한 용출실험)

  • Lee, Dong-Sik;Lee, Chan-Hee;Kim, Sa-Dug
    • Journal of Conservation Science
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    • v.19
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    • pp.5-18
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    • 2006
  • The Mireuksaji stone pagoda of the Iksan was built in Muwang King of Baekjae Kingdom and has maintained its present status through several rebuilding process. Recently, the structural unbalance of the pagoda has worsened, so for scientific maintenance recovery of its original pagoda form, the pagoda is under dismantling process. The original form of this pagoda is being presumed to be a plane square pagoda of nine stories, though only a portion of six stories remains until today. The destroyed part from collapse was liked in insecure pagoda form by Japanese in year of 1915. On the surface of the stone which has gone through the present time, efflorescence appeared as precipitation substance over crusted and due to this phenomenon, the structure and color of thee original stone haven't been preserved. Therefore, quantitative analysis on its kind, emitted status and contamination type of secondary inorganic contamination substance of the over crusted surface were analyzed. Also through reaction experiments, contamination type was defined and tests have been applied to find the requirements that will wash out the contaminants. The result of this study will provide the base of quantitative analysis on the kind of inorganic contamination of the surface of stone assets, and it shall also contribute to the application of scientific maintenance recovery of surface cleaner for efflorescence.

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Deterioration and Conservation Treatment of the Three Storied Stone Pagoda in Seoak-ri, Gyeongju (경주 서악리 삼층석탑의 훼손상태 및 보존처리)

  • Lee, Myeong-Seong;Jeong, Min-Ho;Jung, Young-Dong;Lee, Chan-Hee
    • Journal of Conservation Science
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    • v.18 s.18
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    • pp.63-74
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    • 2006
  • All rock materials of the three storied stone pagoda in Seoakri were composed of light gray alkali granite with medium grained and developed with small mialolitic cavities. This stone pagoda is preserving almost archetype except the head part because there was repair work already. But, foundation, basement and roof rocks are serious state by microbial invasion such as lichens. Because there are tree and grass that cause direct effect to stone pagoda surrounding. Therefore, conservation treatment executed the primary dry cleaning and secondary wet cleaning treatment. Stone surface is partly not removed well such as lichens which part removed using cleansing device that use high temperature steam. Some treated part concrete and epoxy resin remove and retreatment with mixing talc and alkali granite powder to epoxy resin. Did color matching at mixing process of epoxy resin and fillers to properties with set the feel of a material. Also, drainage ditched to minimize inflow of rainwater fall from slope that is on the east of stone pagoda, tree and grass in stone pagoda surrounding wished to do remove and control occurrence of lichens hereafter minimizing moisture conteats.

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Measuring Changes of Dominance in Designs of Mobile Phones (휴대폰 디자인에 있어서 지배성 변화 측정)

  • Park, Sang-June;Lee, Yu-Ri
    • Science of Emotion and Sensibility
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    • v.13 no.1
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    • pp.91-102
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    • 2010
  • This study investigates the dominant degree of product design factors through the process of change of design factors. The previous research suggested a concrete measurement method of dominant designs, but it did not investigate empirically the degree of dominance due to the limited data for changes of designs. In this research, thus, after collecting design data of mobile phones and we measured the dominance and structure change of the designs by year. The analyses showed the following two things. First, in design factors of mobile phone the dominance on the body form and the edge grows more and both of them as dominant design factors tend to converge into the rectangular body form and the round edge, respectively. Second, the dominance on other design factors(e.g. the button type, the open type, whether or not to have digital multimedia broadcasting(DMB) and video telephony functions, the combination of colors and the body color) increases and decreases; and hence, design levels tend to diverge. In conclusion, the measurement of dominance on product design factors contributes to marketing managers and designers who are required to establish a strategy for products under the rapidly changing circumstances of market. This research aims to provide those managers and designers with a guide line for a successful development of new product to prepare for the dominant design from this empirical study.

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A Study on the Relationship between Sasang Constitution and the Facial Skin in Acute Stroke Patients (급성기 중풍 환자의 사상체질과 안면피부에 관한 상관성 분석)

  • Yeo, Hyeon-su;Rhee, See-hyung;Hsia, Yu-chun;Jung, Ki-yong;Baik, Jong-woo;Choi, You-kyung;Kim, Dong-woo;Park, Jong-hyung;Cho, Ki-ho;Ko, Seung-gyu;Han, Chang-ho;Bang, Ok-Sun;Jun, Chan-yong
    • The Journal of the Society of Stroke on Korean Medicine
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    • v.8 no.1
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    • pp.12-16
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    • 2007
  • Objectives : This study was done to investigate the relationship between Sasang constitution and the facial skin in acute stroke patients Methods : In the time of period Mar. 2007 to Jun. 2007, 103 patients with stroke admitted in the department of Internal Medicine of Kyungwon University Seoul Oriental Medical Hospital, Kyungwon University Incheon Oriental Medical Hospital, Kyunghee University Oriental Medical Hospital, Dongguk Il-san Oriental Medical Hospital were included. We assessed the type of Sasang constitution, and the type of Sasang constitution of 51 patients were confirmed. We investigated general characteristics, stroke type and the relationship between Sasang constitution and the facial skin. Results : The color of face have no significant differences by Sasang constitution. But So-yang have blue and purple colored lips than So-eum and Tae-eum have. Conclusions : In this study, we found the relationship between Sasang constitution and the facial skin in acute stroke patients. But it seems necessary to investigate more cases to concrete conclusion on this theme.

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The Effect of Recycled Glass Sand Usage Conditions on the Mechanical Properties and Alkali-Silica Reaction of Mortar (순환유리 잔골재의 사용 조건이 모르타르의 역학적 특성 및 알칼리-실리카 반응에 미치는 영향)

  • Min-Jae Son;Gyu-Yong Kim;Hyun-Sang Choi;Gyeong-Cheol Choi;Tae-Hyeob Song
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.12 no.3
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    • pp.263-270
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    • 2024
  • In recent years, there has been an increasing amount of waste glass that cannot be recycled and is landfilled among construction and household waste. To address this issue, research has been conducted to recycle waste glass as sand, but conflicting results have emerged depending on the type of waste glass and the manufacturing method of recycled glass sand(RGS). To promote the use of RGS, it is necessary to review its performance under field conditions, such as mass production processes and real scale concrete applications. This study introduces examples of mass production system process for RGS and evaluates the effects of the usage conditions(color, content, particle size) of mass-produced RGS on the mechanical properties and alkali-silica reaction(ASR) of mortar. As a result, the mass production system process of RGS causes microcracks inside the particles, which are the cause of mortar strength reduction and ASR expansion. The number of microcracks is highest in clear RGS. Based on these results, it is proposed that RGS can be used as a replacement for natural sand with a content of less than 25 % or a particle size of less than 0.5 mm.

Analysis by Bat Symbol of Paintings and Crafts in late-Joseon Period: Focused on museum collections (조선후기 박쥐상징 회화와 공예품의 분석-박물관 소장품을 중심으로)

  • Eom, So-Yeon
    • KOMUNHWA
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    • no.69
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    • pp.41-62
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    • 2007
  • This thesis is focused on the bat symbol, especially prevalent crafts’ pattern in late Joseon period on museum collections. For the use and reperception of them, I am aimed for appropriate analysis of bat symbol by co connotation which reflects the characteristics on number.plastic.color symbol. This point of view, bat idea and bat paintings in Joseon period will be the source of meanings to the denotation of bat patterns. In the museum collections, bat paintings and patterns are calculated 324 objects. By functional classification, the bat patterns on dwelling-crafts for the royal and for the people will be discussed. In result, the bat paintings were only a few, however, usually connoted Taoist hermit with super-natural powers.longevity.protector of Lightning-God.praying for long life, which were based on Taoism. Meanwhile the bat symbol of dwelling-crafts for the royal projected the longevity and prosperity of king and queen. By he Five Blessings and good auspices in Ching dynasty, number of '5.4' implied 'Five Blessings', Through the correct recognition of homo-phone, "a bat(蝠, fu)=happiness(福, fu)$\rArr$five bats(五蝠)$\rArr$Five Blessings(五福 )." In the case of bat symbol on the dwelling-crafts for the people, especially its for women, it expressed on the metal-decoration of furniture and paper-crafts. In the metal-decoration, the signified of bat symbol were expellant-evil('guard') that of characteristic signifier, white-silver color, number '1' and 'flying-type'. The bat symbol on paper-crafts for the people signified 'double happiness'.harmony.sons with number of '2', 'Five Colors' and the transformation of 'flying-type'. Accordingly, the bat symbol on the dwelling-crafts for the people marked 'happiness and guard', because the people had concrete cognition the bat symbol as a denotation of 'happiness and 'guard' by itself

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A Study on the Meaning of Plant Material in the 2016 Korea Garden Show Designer's Garden (2016년 코리아가든쇼 작가정원의 식물 의미에 관한 연구)

  • Lee, Chung-Hee;Jin, Hye-Young;Lee, You-Mi;Song, Yu-Jin
    • Journal of the Korean Institute of Landscape Architecture
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    • v.45 no.3
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    • pp.41-53
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    • 2017
  • This study was performed to determine what the plant material were selected to reflect in the 2016 Korea Garden Show designer's garden. It was analyzed that plant material was used to display the theme of the garden and to create a specific space. Under the given theme of 'K-Garden, Shinhallyu Garden(new style garden culture) with the most Korean taste', the plants were used to highlight the theme in two types: 'representation' and 'expression'. There were two 'representation' gardens that imitate a particular space of Korean taste and four 'expression' gardens that showcase the designer's thoughts with abstract concepts and concrete objects. Three gardens included both types of garden. The way of revealing the subject with plants was used more for 'expression' than for 'representation'. There were eleven spaces for 'representation' of the Korean taste, a vegetable garden, faucet, pond, field, nature, a Hanok court garden, groves of bamboo, tile roof, stone wall, rock and backyard of a Hanok connected to the mountain. The planting material was used in two ways: reflecting only the ecological characteristics of the plant, and considering the ecological and visual characteristics together. Vegetation plantings reflecting the ecological characteristics were observed in all eleven spaces. Nine of the spaces reflected the growth environment of the plants, but the other two did not reflect the ecological characteristics of the plants, unlike the designer's intention. In the case of the four spaces that considered the ecological and visual characteristics together, color and size were considered visual characteristics. The plants in the seven spaces that included 'expression' as the theme were selected to reflect the visual characteristics in the order of color, shape, texture, and size, rather than reflecting ecological characteristics. A group planting method was applied. When the plants were used as materials for creating space, Norman(1989) analyzed three enclosure factors(overhead, vertical, ground plane). Only two deciduous trees were used in the overhead plane while five species of evergreen shrubs and thirty species of various deciduous plants were used in the vertical plane. There were forty-five species (nine trees and thirty-six herbaceous plants) forming the ground plane, and various herbaceous plants were utilized without duplication in each garden. The designer's garden of the Garden Show played a role in introducing new groundcover plants to the public. Three of the nine gardens did not include ornamental plants, and the use of decorative plants in other gardens was few compared to the number of plantings. In the Korea Garden Show designer's garden, most of the plants were being used with the intention of exposing the theme or architectural uses. In the 2016 Korea Garden Show designer's garden, many species of plants were used as materials for showcasing themes rather than for creating spaces. Also, the method of 'expression' was used more than the method of 'representation' in order to highlight the theme. This indicates that the planting materials reflect visual characteristics such as color, shape, texture, size rather than ecological characteristics.

Effects of Floor Type and Increasing Market Weight on Performance and Pork Quality of Finishing Pigs (돈방바닥과 출하체중 증가가 비육돈의 생산효율과 돈육품질에 미치는 영향)

  • Kim D. H.;Kang J. D.;Ha D. M.
    • Journal of Animal Environmental Science
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    • v.11 no.3
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    • pp.153-160
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    • 2005
  • This study was conducted to determine the effect of floor type of finishing building and increasing market weight of finishing Pigs on Performance, carcass traits and pork quality. Four hundred and forty-four finishing pigs were confined and administered with different floor type(concrete slat and bedded with sawdust) and increasing market weight(110kg to 130kg) of finishing building. The result obtained from this study were summarized as follows; 1. There was no significant difference between the floor type of finishing building in the body weight gain, feed intake and gain per feed. And also increasing market weight of finishing pigs was not affected the performance of finishing pigs. 2. Increasing market weight of finishing pigs affect the carcass yield. The market weight at 130kg showed more amount of each cut of carcass, especially the belly portion was higher, but backfat thickness was not different. 3. Carcass traits did not show any significant difference due to the difference of market weight of finishing pig and floor type of finishing building. 4. There was no significant difference in the chemical compositions and meat color of pork loin between the floor type of finishing building and increasing market weight of finishing pigs.

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