• Title/Summary/Keyword: Preservation condition

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Characterization of Xylanase of Cladosporium cladosporioides H1 Isolated from Janggyeong Panjeon in Haeinsa Temple

  • Hong, Jin-Young;Kim, Young-Hee;Jung, Mi-Hwa;Jo, Chang-Wook;Choi, Jung-Eun
    • Mycobiology
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    • v.39 no.4
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    • pp.306-309
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    • 2011
  • Cladosporium cladosporioides H1 was found to be the most abundant microbe in Janggyeong Panjeon. C. cladosporioides H1 produced a 20 kDa xylanase, which was generally stable below $60^{\circ}C$ and had specialized activity in an acidic condition. Our results may lead to the development of a strategy for preservation of organic cultural heritage environments.

A Study on the Dwellers' Awareness and Demand for the Pro-Environmental Elements of Interior Space of Apartment House - With homemakers with children attending elementary.middle.high schools and college - (아파트 실내공간의 친환경적 요소에 대한 거주자 인식 및 요구 - 광주광역시 초.중.고.대학생자녀를 둔 주부를 대상으로 -)

  • Yang, Hyeong-Sun;Kim, Mi-Hee
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2007.11a
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    • pp.183-186
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    • 2007
  • In modern society, sense of crisis from environmental destruction caused by rapid industrial development, economic growth and improvement of educational level and medicine made environmental preservation and comfortable residential environment a necessary and sufficient condition. Since government conducted 'green building rating system' from 2002, application of pro-environmental elements has been extended. But the concept of substantial pro-environmental housing remains the stage of complex planning yet and application of system to interior space which has the most direct influence on actual dwellers is very poor.

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A Study on the Development of the Contents in Architectural Culture of the Historical City, GongJu (역사도시 공주의 건축문화 콘텐츠개발에 관한 연구)

  • Lee, Ho-Jung
    • Journal of the Korean Institute of Rural Architecture
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    • v.10 no.2
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    • pp.9-16
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    • 2008
  • GongJu is a historical city. There has been scattered Baekje, Chosun and modern cultural heritages in GongJu. Cultural heritages in Baekje is simply preserved in their current condition. Chosun and modern cultural heritages have left their traces only, so that faded from the memory of the world. We must not lose the historical interconnectedness that is created by these heritages. This study is to analyze the architectural culture contents and its practical use program in urban side, and search for the strategy. The purpose of this study is as follows: The first is to retrieve the scattered heritages according to the age and area(as a spot). The second is to improve the street landscape through the linear linkage connecting from spot to spot.(as a line) The last is to create the image of historical city through the regional development.(as an area)

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CHARACTERIZATION OF ORTHONORMAL HIGH-ORDER BALANCED MULTIWAVELETS IN TERMS OF MOMENTS

  • Kwon, Soon-Geol
    • Bulletin of the Korean Mathematical Society
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    • v.46 no.1
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    • pp.183-198
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    • 2009
  • In this paper, we derive a characterization of orthonormal balanced multiwavelets of order p in terms of the continuous moments of the multiscaling function $\phi$. As a result, the continuous moments satisfy the discrete polynomial preserving properties of order p (or degree p - 1) for orthonormal balanced multiwavelets. We derive polynomial reproduction formula of degree p - 1 in terms of continuous moments for orthonormal balanced multiwavelets of order p. Balancing of order p implies that the series of scaling functions with the discrete-time monomials as expansion coefficients is a polynomial of degree p - 1. We derive an algorithm for computing the polynomial of degree p - 1.

Some living eukaryotes during and after scanning electron microscopy

  • Ki Woo Kim
    • Applied Microscopy
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    • v.51
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    • pp.16.1-16.7
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    • 2021
  • Electron microscopy (EM) is an essential imaging method in biological sciences. Since biological specimens are exposed to radiation and vacuum conditions during EM observations, they die due to chemical bond breakage and desiccation. However, some organisms belonging to the taxa of bacteria, fungi, plants, and animals (including beetles, ticks, and tardigrades) have been reported to survive hostile scanning EM (SEM) conditions since the onset of EM. The surviving organisms were observed (i) without chemical fixation, (ii) after mounting to a precooled cold stage, (iii) using cryo-SEM, or (iv) after coating with a thin polymer layer, respectively. Combined use of these techniques may provide a better condition for preservation and live imaging of multicellular organisms for a long time beyond live-cell EM.

Studies on Conservation of the Beeswax-treated Annals of Joseon Dynasty (조선왕조실록 밀랍본 보존을 위한 연구)

  • Jeong, Hye Young;Choi, Kyoung Hwa;Lee, Kye Shik;Jo, Byoung-Muk
    • Journal of Korea Technical Association of The Pulp and Paper Industry
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    • v.44 no.6
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    • pp.70-78
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    • 2012
  • The Annals of Joseon Dynasty, which recorded governmental affairs for 472 years (AD 1392-1863) during the Joseon dynasty is an representative paper cultural heritage in Korea. Being recognised their authenticity and values they were designated as the No 151 national treasure of Korea in 1973 and registered as 'The Memories of the World' by UNESCO in 1997. Unusually, some volumes of the Annals were treated by beeswax for the permanent preservation. However, the examinations on the deterioration of the beeswax-treated volumes had been exposed the serious damage than the untreated volumes. In particular, the larger amount of beeswax were worst in deterioration condition. In order to solve these problems, NRICH(National Research Institute of Cultural Heritage) of Korea launched the investigation study for the conservation of beeswax-treated volumes of the Annals. Now then, the five study areas have been set up; 1) to understand the damaged condition of the Annals; 2) to analyse the raw materials and production techniques; 3) to test the degradation degree using the duplication samples for understanding the aging factors and mechanism; 4) to develop the conservation techniques through dewaxing and thereafter strengthening the base paper of Hanji; 5) to develop the long-term storage technique using inert gases. On the basis of outcomes from this study, NRICH will plan to establish the systematic conservation and management plan for the beeswax-treated volumes of the Annals in future.

Analysis of Designs that Applied Clothing Functionalities Related to Bicycle Riding Conditions of Domestic and Foreign Brands (자전거 주행 상황과 관련된 의류 기능성을 적용한 국내외 브랜드의 디자인 분석)

  • Jeong, Hoonsil;Seo, Yeaji;Kim, Youngin
    • Journal of the Korean Society of Costume
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    • v.65 no.6
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    • pp.36-47
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    • 2015
  • The purpose of this study is to provide essential information conducive to designing efficient cycling apparel for everyday wear. To this end, this study identified key situations that cyclists face while riding their bicycles as well as clothing functions that are necessary for each situation. Furthermore, this study also analyzed the current trends in cycling apparels and hybrid designs. In order to analyze the current trends of clothing functionality in domestic and foreign cycling apparel brands, the researchers of this study first reviewed existing literature on the functionality of cycling clothing. Then a focus group, which comprised of two experts in cycling fashion brands and fourteen consumers, was formed and in-depth interviews were conducted to identify the major conditions related to bicycle riding. Based on the results of the interview, the study, then, classified 700 images of cycling clothing from exhibitions and 1,541 images of cycling clothing that were launched by domestic and foreign fashion brands. The results of this study were as follows. First, there were three major conditions in bicycle riding: night riding, weather changes and riding convenience. Second, functionalities required for each riding condition were as follows: visibility for night riding, comfort, waterproofness and heat preservation properties for weather changes, and elasticity, protective properties and storage capacity for riding convenience. Finally, hybrid designs for each riding condition were different from general designs.

Ecological Characteristics and Distribution of Native Trillium tschonoskii in Ulleung Island (울릉도 자생 큰연령초의 분포와 자생지의 생태적 특성)

  • Ahn, Young-Hee;Lee, Sung-Jae;Lee, Sang-Hyun
    • Korean Journal of Pharmacognosy
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    • v.38 no.2 s.149
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    • pp.157-163
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    • 2007
  • Trillium tschonoskii Maxim. is a kind of 64 endangered plant species designated by the Ministry of Environment in Korea. It is very a rare native plant throughout the country. Therefore, this study was conducted to investigate the native T. tschonoskii in Ulleung Island for their distribution and ecological characteristics. They were mostly distributed valley, mid-slope of the mountain from 186 to 458 m altitude. They had a little low light conditions as they faced west, north west, south west, south-south west, north-north east and east-east north. They were provided with slightly humid condition. Aerial humidities of these quadrates were variable as 21.5-71%. They were located on the variable slopes of 5 to 43 degrees. Soil humidity was slightly dry. Native sites were semi-shaded because tree layer such as Tilia insularis, Zelkova serrata, okamotoanum etc.and sub-tall tree layer such as Ligustrum foliosum, Comellia japonica, Tilia insularis, Callicarpa japonica and so on were grown near by. Woody plants such as A. Okamotoanum, Sorbus commixta, Fagus japonica var. multinervis etc. were frequently observed. These environmental conditions were suitable that T. tschonoskii grows up naturally because of high Percentage as 52.78% of blooming individuals in this study. These native sites were classified with three communities, T. tschonoskii-Majanthemum dilatatum community, T. tschonoskii-Anthriscus sylvestris community and T. tschonoskii-Hepatica maxima community in accordance with altitude and aerial humidity. The best way ffr the preservation of T. tschonoskii habitats and maintainance of its recent population is maintained in recent environmental condition and ecological condition without any management by human-being.

Immobilized Condition of Suchwowces cerevisiae for Ethanol Production from Persimmon Juice. (감 즙으로부터 에탄을 생산을 위한 Saccharomyces cerevisiae의 고정화 조건)

  • 이상원;손미예;서권일
    • Food Science and Preservation
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    • v.6 no.2
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    • pp.221-227
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    • 1999
  • The immobilized culture system of Saccharomyces cerevisiae was examined to improve the efficiency of vinegar production from persimmon juice. Optimum concentration of Na-alginate for the immobilization was 2%. When the 1eakage of yeast from get beads was checked by turbidity of culture medium with varying concentration of Na-alginate from 1 to 4%, turbidity of culture medium increased from 8 hrs of cultivation with 1% Na-alginate concentration showing optical density of 0.82 at 20 hrs. However, the increase in turbidity of culture medium was slow with 2-4% Na-alginate showing optical density of 0.55-0.58 at 20 hrs. Microscopical analysis of gel matrix showed that the immobilized yeast was grown well regardless of Na-alginate concentration. Optimum size of gel bead and amount of inoculation were 2-3 m and 33mg, respectively. For ethanol production aerobic cultivation for 121hrs using cohen plug followed by anaerobic cultivation using silicon plug equipped with a check valve was the most effective.

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Antimutagenic Effects against Aflatoxin B1 on Culture Conditions of Leuconostoc mesenteroides subsp. cremoris DLAB19 Isolated from Dongchimi (동치미에서 분리한 Leuconostoc mesenteroides subsp. cremoris DLAB19의 배양조건에 따른 Aflatoxin B1에 대한 항돌연변이 효과)

  • Rhee Chang-Ho;Kim Jung-Hee;Park Heui-Dong
    • Food Science and Preservation
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    • v.11 no.3
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    • pp.405-410
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    • 2004
  • Leuconostoc mesenteroides subsp. cremoris DLAB19 were investigated under various culture conditions to maximize the production of antimutagenic substance(s) against aflatoxin Bl(AFBl) on Salmonella enterica serovar Typhimurium TAI00 and TA98. The MRS medium containing glucose(2$\%$) as a carbon source and yeast extract(1 $\%$) as a nitrogen source resulted in the highest production of the antimutagenic substance(s) against aflatoxin Bl(AFBl) in the culture supernatant of Leu. mesenteroides subsp. cremoris DLAB19. Optimal pH of the medium, culture temperature and shaking speed for the antimutagenic substance(s) production were pH 7.0, 30$^{\circ}C$ and 150 rpm, respectively. Under the optimal condition, the antimutagenic effects of Leu. mesenteroides subsp. cremoris DLAB19 culture supernatant were 87.11 $\%$ on S. enterica serovar Typhimurium TA100 and 75.04 S. enterica serovar Typhimurium TA98.