• 한국광물학회지
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• 제31권1호
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• pp.33-46
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• 2018

단청, 불화, 벽화 등에 사용된 전통 무기질 안료는 대부분 광물이었으나, 근현대에 저렴한 화학안료로 대체되어 광물안료 제조법의 맥이 끊어졌다. 이 연구에서는 문화재 보존에 필요한 전통 광물안료 중 녹색-청색 계열 안료자원의 국내 산출과 광물학적 특성을 규명하고자 하였다. 구리를 함유한 녹색 - 청색 안료광물들은 구리-납-아연을 채굴하는 금속광산의 폐석장이나 갱내 풍화대에서 이차광물로 산출되었다. X선회절과 주사전자현미경 분석을 이용하여 광물동정을 실시한 결과, 녹색은 brochantite, devilline, 청색은 linarite, bechererite, schulenbergite 등의 함수구리황산염이 대표적인 발색광물이었으며, 그 외 소량의 녹색 antlerite, atacamite가 확인되었다. 이들 녹색-청색 안료광물과 함께 cerussite, smithsonite, anglesite, cuprite 등이 이차광물로 흔히 수반되었다. 녹색 규산염 안료인 뇌록은 현무암 파쇄대의 교대산물로 산출되며, 주발색광물인 celadonite 외에 단백석이 다양한 비율로 혼재되어 있었다. 녹색 규산염 안료인 해록석은 사질 서해 퇴적물 내에서 산출이 확인되었다. 이번 조사에서 대표적인 구리계열 녹색-청색 전통안료로 알려진 공작석과 남동석의 산출을 확인할 수 없었다.

• 한국실내디자인학회논문집
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• 제25권1호
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• pp.163-171
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• 2016

The objectives of this study is to analyze the characteristics of Chinese traditionality expression at restaurants in Beijing area. 12 restaurants were selected and visited for the investigation research. The results were as follows. First, traditional reproduction was found mainly manifested through the reproduction of traditional ornaments, in particular, the facade and interior element ornaments. Second, Traditional transformation was mainly manifested in replacement material while changing the shape slightly, or to stretch or shorten prototype shape and other negative deformation methods which did not largely out of the scope of traditional reproduction. Third, Traditional reinterpretation was expressed by abstract, symbol or metaphor on designs, usually people can not directly recognize the traditional archetype. When compare with traditional reproduction or traditional transformation, traditional reinterpretation was relatively fewer, however, in this study the traditional reinterpretation and traditional transformation have same numerical result. Reinterpretation as a positive performance method of traditional modernized, it was encouraging the phenomenon, especially in the ceiling design. Chinese traditional cloud patterns have been three-dimensional and diversification of use. And in the wall design, traditional elements have been extremely simplistic or adopted a wide variety of traditional elements, it may be preferred in diversity. In addition, furniture was tinge traditional elements in modern form, lighting was added symbolize color or picture on the traditional lighting which shape was simplified to emphasize space's traditional. But the facade, sign board, floor, and window element seems the range of variation was not wild, promote more use the positive traditional reinterpretation method.

• 식물분류학회지
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• 제34권1호
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• pp.27-35
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• 2004

광주시 월각산 (275 m)의 계곡 주변에서 관중과의 남방고사리속과 관중속에 포함되는 미기록 양치식물 세 분류군을 발견하였다. 흰비늘고사리 [Ctenitis maximowicziana (Miq.) Ching]는 엽병 기부 인편의 색깔과 형태, 엽신의 형태, 둥근 신장형의 포막의 유무 등의 특상에 의해 남방고사리 [C. sinii (Ching) Ohwi]를 포함한 속내 다른 분류군들과 식별되었다. 남도톱지네고사리[Dryopteris lunanensis (H. Christ) C. Chr.]는 측우편의 수, 중부 이하의 우편의 제 1열편 혹은 2열편의 분열정도와 포자낭군의 분포양상에 의해 유사 분류군인 톱지네고사리 [D. atrata (Wall. ex Kunze) Ching]와 구별되었다. 애기지네고사리 [Dryopteris decipiens (Hook.) Kuntze var. diplazioides (H. Christ) Ching]는 중부 이하 우편의 분열 정도에 의해 원변종 var. decipiens와 식별되었으며 잎의 형태로 볼때 원변종과 큰지네고사리 (D. fuscipes C. Chr.)의 중간형처럼 보였다. 이들 세 분류군은 월각산의 해발 200-250 m에 국한하여 10개체 내외가 자생하고 있었다.

• 조명전기설비학회논문지
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• 제15권6호
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• pp.8-14
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• 2001

메탈핼라이드램프는 고효율, 고연색성이며 집광능력이 좋다. 그러나 메탈핼라이드 램프의 단점은 아크튜브내에서 음향공명현상이 발생되는 것으로 알려져 있다. 이러한 음향공명은 점등상태의 불안정과 기체의 심한 파동을 일으킨다. 심한 파동과 불안정한 점등으로 아크가 소멸되는 부위는 전압이 상승되고, 방전관내벽에 근접된 아크는 국부의 과열로 튜브를 금가게한다. 이 연구의 목적은 펄스스타트 메탈핼라이드램프 MH200[W]의 아크튜브내에서 음향공명을 감소시키는 것이다. 음향공명현상을 감소시키기 위하여 전자식안정기가 84.6[kHz]에서 94.2[kHz] 대역내에 있는 89[kHz]의 단독주파수인 정현고주파를 램프에 공급하기 위하여 설계되었다. 실험결과 고효율 펄스스타트 MH200[W] 램프의 방전관내에 음향공명 현상이 없었다.

• 한국조리학회지
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• 제18권2호
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• pp.162-171
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• 2012

가공식품의 개발에 있어서 식품의 맛과 더불어 저장성, 열안정성 및 색도유지는 소비자의 기호도에 중요한 영향을 미친다. Protopectinase는 식물조직 중엽부의 성분인 불용성 proto-pectin을 분해하여 단세포화하는 효소이다. Protopectinase를 포도에 적용시켜 포도 고유의 세포속에 함유되어 있는 세포내 성분들을 파손없이 단세포로 유리하였다. pH, 총산 함량, 총 폴리페놀함량 및 항산화력은 기계 처리구보다 효소 처리구에서 보다 안정성을 나타내었으며 이는 단세포 처리에 의하여 이들 성분이 안정하게 유지됨을 알 수 있었다. Protopectinase로 처리된 포도 단세포화물을 $4^{\circ}C$에서 28일간 저장하며 색도를 관찰한 결과, 단세포 처리구에서는 기계 처리구보다 색도의 차이가 미비하였으며 기계 처리구에서는 단세포 처리구보다 색의 변화가 크게 나타났다. 또한 포도 단세포화물을 $80^{\circ}C$에서 30분간 열처리한 후 관찰한 결과, 기계 처리구의 경우가 단세포 처리구의 경우보다 품질의 변화를 크게 나타내어 이러한 결과는 효소적 단세포화물의 열 안정성을 의미한다. 따라서 Protopectinase를 이용한 포도의 단세포화는 과실음료제조 및 원료보존에 유용하게 응용가능하며, 나아가 포도 단세포화물의 폭넓은 식품 소재화 가능성과 고부가가치 기능성 식품제조에 이용 될 수 있음을 의미한다.

• 한국실내디자인학회논문집
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• 제19권4호
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• pp.58-65
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• 2010

The purpose of this study is to be applied with the basic data for the design method in the housing space which is differential. So, we analyzed the expression method and the application characteristic to materials of units in housing complex. To that, we researched on the condition of finishing material about the kind of material, color, texture and pattern for components in living room space. The results of this study are as follows : First, at the present time, the Object concept is expressed by 'mixing' and 'juxtaposition' of material, texture and pattern of finishing materials in housing space. But, we could find that the Object concept was used restrictively in housing space. So, we have to find different expression methods to be the effective and differential design by being applied Object concept for the housing space. Second, the 'mixing' which is the method to express the Object concept is showed in only 'art wall'. so, we can estimate that the method is the limited method to plan the varied housing. It is needed various expression methods to design components for the housing space. Third, it showed that the 'mixing' was a passive expression method using a little differential for design of housing space. We could estimate that similar methods were applied to the housing design. By results of this study, we can think that the develop study is needed to find design methods for expression of the Object in housing space.

• 자원환경지질
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• 제33권2호
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• pp.147-163
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• 2000

The Buseok pluton in the Yeongju Batholith is a comagmatic plutonic rocks which haveconcentrically compositional zoning. The lithofacies of the Buseok pluton comprise hornblende biotite tonalite in the southern part of the pluton, porphyritic and equigranular biotite granodiorite in the northern part and biotite granite in the north-central part. The compositional variations change gradually with continuity both within and between the lithofacies. The concentrically zoned pattern is relatively mafic rocks composed of high-temperature mineral assemblages in margin of the southern part, passing inward and northward gradually to more felsic rock in core of the north-central part. Changes in the textures and microstructures, as well as in the mineral content, take place between rock types of the plutons. Darker colored, generally coarse-grained, well foliated tonalite pass inward to light colored, coarse-grained, poorly foliated granodiorite, and finally give way to lighter colored, medium-grained, nearly nonfoliated granite. The foliation are best developed in the marginal part of the tonalite. Here, the regional myolitic foliation in the tonalite is steep northward and parallels to its southeastern contact with the country rock, but the magmatic foliation from disc-shaped mafic microgranitoid enclaves is subvertical and parallels the contacts with the country rock. As the tonalite approaches biotite granite in composition, the foliation is indistinct. Modal and chemical data for the pluton show quantitative compositional variation from the margin of the southern part to the core of the north-central part. Quartz and K-feldspar increase toward the core of the pluton, whereas hornblende, biotite and color index decrease. /Abundances of $SiO_2$and $K_2O$$_2$O increase toward the core according to the variation in quartz and K-feldspar, whereas those of MnO, CaO, $TiO_2$, $Fe_2O_3$, MgO and $P_2O_5$ decrease corresponding to the variation in mafic and accessaries. The compositional zonation resulted from fractional crystallization involving downward settling of earlier crystals, accompanied by upward movement of melt and volatiles, and followed by accessary marginal accretion of crystalline material in the magma to the marginal part. Although a little crustal contamination by the wall rock is recognized from the isotope data, the contamination is not only dominated over but also appropriate for forming the compositional variation in the pluton.

• 한국펄프종이공학회:학술대회논문집
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• 한국펄프종이공학회 2011년도 춘계학술발표회 논문집
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• pp.169-169
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• 2011

Xylans are polysaccharides present in large amounts in cell walls of land plants. However, during kraft cooking, a high portion of hemicelluloses including xylans are dissolved in the cooking liquor. In the current trend for a more effective utilization of biomass, attention has been paid to the exploitation of xylans as strength-enhancing additives for paper. It is believed that surface xylan adds flexibility to the cell wall/fiber surface, resulting in stronger fiber-fiber joints or greater contact area between the fibers. Accordingly, there is proposal for a new pulping process involving the extraction of xylan prior to pulping, followed by their re-adsorption on the unbleached pulp. A suitable bleaching process should be employed then, which ought to does not only improve the brightness of the pulp, but also remain the effect of the adsorption of xylan on pulp fibers. The objective of this research was to investigate the impact of hydrogen peroxide bleaching on the properties of unbleached hardwood kraft pulp pretreated with birchwood xylan by measuring optical properties (brightness, post color number, opacity) as well as physical properties (tensile index, tearing index, bulk) of handsheets made from the bleached pulp. In the meantime, the influence of process variables of peroxide bleaching including bleaching temperature, time, initial pH and $MgSO_4$ dosage were studied.

• International Journal of Human Ecology
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• 제8권2호
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• pp.29-46
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• 2007

The purpose of this study was to analyze characteristics of the bedroom environment of nursing homes for the elderly in Korea. Field case research was performed using a structured checklist and measurements, from Oct. 28th to Dec. 2nd, 2006. Collected data were analyzed for cognitive efficiency, privacy, safety, supportiveness and amenity. Based on nursing homes for the elderly nationwide (Ministry of Health and Welfare, 2006), we choose 43 facilities in which Seoul and six megalopolis areas that had answered our questionnaire in 2006. We then narrowed the list to 14 facilities, balanced them in terms of regional population. The contents of investigation consisted of eight categories: that general characteristics of the bedrooms (including number of residents per room, using a bed or floor mat, the size and shape of the chamber, space for wheelchair turning, signage), door of bedroom (including door, doorknob, door sill/level difference), windows in the bedroom(including type of window, window sill height, window treatment, window safety device/shape, view/daylight), furniture (including personal furniture and lock), finishes (material, character and color of wall, floor, ceiling), lighting (including types of lighting, night lighting, switch), bathroom in the bedroom (including signage, door size/type, doorknob shape, height of the washbowl, size of toilet bowl, handrail, finishes), and other facilities (including outlet and handrails).

• 한국가구학회지
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• 제23권3호
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• pp.324-331
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• 2012

The domestic pine was used to investigate the change of specific gravity, moisture contents, color and anatomical structure by accelerated weathering test (AWT). According to visual inspection, a few knot separation and looseness as well as considerable surface discoloration was found out. However, the crack and split of surface texture have been never occurred till the last step of AWT. On the whole, as the time of accelerated weathering test has increased, the specific gravity has decreased. Finally, after the 9th week of AWT, the specific gravity was 0.38 that reached to 82% compared to the control specimen. In case of moisture content (MC), it showed rising trend in its early stages, however, after 3th week of AWT it have displayed steady state. A deterioration of cell-wall components was not remarkably observed by scanning electron microscope (SEM), however the ray fractures of AWT specimen were observed more than those of control specimen. The full fracture of epithelial cell around resin canal was observed by optical microscope. The fracture of ray of 2th cycle AWT specimen was first, followed by 1th week and control group. A distortion of tracheid for early spring wood and fracture of epithelial cell were generally observed by a similar level, regardless of duration time of AWT. Therefore, it is obvious that increasing duration time of AWT does not affect the deterioration of micro-structure for wood members from this study. Although a considerable change of anatomical properties was not found, there is a need of further research to understand how will the changes of specific gravity and MC on the physical properties of wood member.