• Title/Summary/Keyword: paper conservation

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A study of a motion estimation with an optical flow (Optical flow를 이용한 motion estimation에 관한 연구)

  • 변재응;김재영;이원희;정진현
    • 제어로봇시스템학회:학술대회논문집
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    • 1996.10b
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    • pp.12-15
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    • 1996
  • The purpose of image sequence coding is to reduce the spatio-temporal redundancies. The transform coding such as DCT is used for the spatial redundancies. In this paper, the optical flow method is applied to solve the problem of temporal redundancies. So far, pixel intensity conservation has been used to solve the optical flow. We used the neighborhood information as well as pixel intensity conservation. And we compared the merits and demerits of the conventional method and the proposed method in this paper.

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A Qualitative Method to Find Out the Impact Direction in Traffic Accident (충돌방향 해석을 위한 정성적 추론이론 개발 및 적용)

  • Lee, Dae Hee;Park, Jin Soo
    • Journal of the Korean Society of Safety
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    • v.32 no.3
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    • pp.136-140
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    • 2017
  • The physical tool for analyzing collision accidents narrows down to the conservation law of momentum. The conservation law of momentum which is also utilized to investigate or to analyze a traffic accident is essential to Newton mechanics. This paper suggests an alternative analytical tool based on the conservation law of momentum. Simply put, the tool is a alternative qualitative method of analyzing a car's direction to find out whether it is driving over the centerline This paper proposes a deduction theory that use qualitative information to make a qualitative analysis of which car drove over the center line.

A Study on the Conservation and Reuse of Cultural Heritage focused on Rural Settlements Honbul Village, Namwon City (혼불문학권역 농촌마을종합개발사업에 관한 연구 - 마을의 문화유산 보존 및 정비를 중심으로 -)

  • Park, Chang-beom;Seo, Hyang-soon;Kim, Tai-young
    • Journal of the Korean Institute of Rural Architecture
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    • v.10 no.2
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    • pp.1-8
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    • 2008
  • This paper is aimed to clarify the conservation and reuse of historic areas in modern ages, especially focused rural settlement Honbul village, Namwon city. Honbul village has modern historic areas as well as the korean traditional head houses, and so many narratives. There are old Seodo station building and the other facilities centered on these areas. And so this paper is to conserve and reuse not only this station but also traditional head house as modern cultural assets for revitalizing Honbul village. This study has been done by the field survey and interviews on the basis of the blueprint and its conditions. Through these modern historic areas, it would be for visitors experiencing the sustanable living condition from now on, excellent landscape of Honbul village. And also development of agricultural products and brand naturally increase incomes of farm families, and finally it will go far toward solving the rural problems.

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Antifungal and Insecticidal Activity of Methanol Extract from 11 Korean Wood Species (국내산 수목 추출물의 항진균 및 살충활성)

  • Lim, Jin-A;Choi, Yun-A;Jung, Mi-Hwa;Kang, So-Yeong;Chung, Yong-Jae
    • Journal of Conservation Science
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    • v.23
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    • pp.95-102
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    • 2008
  • To investigate bioactive materials for development of natural conservative agent on organic cultural heritage, methanol extracts from 11 wood species which populate in Korea were screened for antifungal and insecticidal activity against 9 wood contaminant fungi and adult of Lasioderma serricorne. Antifungal activity of extracts was tested by using paper disc soaking method and feeder strip test against wood-rot fungi and wood surface contaminant fungi. Among these extracts, the most significant antimicrobial activity was observed from the extract of Phellodendron amurense at 5 mg/disc against Coniophora puteana, Lentinus lepideus, Tyromyces palustris and Aspergillus niger. The insecticidal activity of extracts was examined by topical application against L. serricorne adults. The extracts from Taxus cuspidata and Abies holophylla gave 56.7 % mortality at 25 ${\mu}g$/adult for 24 hr. From these result, the methanol extract from T. cuspidata, A. holophylla and P. amurense described could be useful for conservation of organic cultural heritage against biological deterioration by insect and wood contaminant fungi.

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Conservation of Multivoltine Silkworm (Bombyx mori L.) Germplasm in India - An Overview

  • Kumaresan, P.;Sinha, R.K.;Mohan, B.;Thangavelu, K.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.9 no.1
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    • pp.1-13
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    • 2004
  • Indian multivoltine mulberry silkworm (Bombyx mori L.) strains are poor in silk productivity and fibre quality. However, they are commercially exploited for the past five decades either in the form of pure breeds or cross breeds because of their adaptability to adverse climatic condition and acclimatization to specific regions and seasons. In the present paper conservation strategies of multivoltine silkworm genetic resources are dealt along with detailed information on accessibility of genetic resources, method of genetic resources conservation, characterization of genetic resources for morphological and productivity traits of economic importance. Selection of best ten accessions based on various economic parameters including yarn quality and their scope for future utilization are discussed.

The Analysis of Organic Residue of Archaeological Evidences (고고 유물에 남겨진 지방의 분석에 대하여)

  • Ahn, Byong Chan;Yu, Hei Sun
    • Journal of Conservation Science
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    • v.4 no.1 s.4
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    • pp.59-66
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    • 1995
  • The living body consists of proteins, carbohydrates and fats. The above components are unstable to the change of circumstances ; thus ; when they are buried under the ground for a long time, they are disintegrated by physical effects such as pressure, water etc. However, it was recently reported that the part of the components of living body, especially fat thought in small guantity, remained in a relative stable state for many milleniuns. In addition, turned out that the structure of the composition of the fatty acid and sterol is different according to their species. For example, the plants - rice, barley, bean - and the animals - (togs, cow, pig, fish - have different structure of fat. Residual fat analysis is a research in the chemical composition of fat vemained in archaeological evidences on the basis of chemical structural differences as mentioned here in above. This paper introduces the residual fat analysis of archaeological evidences practical in Japan.

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Development of Aquaculture for Conservation of Resources and Environment in Korea (지속적 어업을 위한 자원 $\cdot$ 환경보전적 양식어업의 전개 방향)

  • Shin Yong-Min
    • The Journal of Fisheries Business Administration
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    • v.36 no.1 s.67
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    • pp.27-49
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    • 2005
  • This paper represents a critical review of current the relationship between aquaculture and the environment, focusing on the development of marine aquaculture for conservation of resources and environment in Korea. Aquaculture has grown rapidly during the past few decades in Korea. This expansion was possibly because of the growing demand for aquatic products and the failure of the capture fishery to keep pace with the demand. Nevertheless, the aquaculture industry must counter criticisms about adverse environmental effects and lack of sustainability. The productivity of Korean aquaculture is decreasing by environmental pollution, is suffering difficulty because competitive power of the aquaculture industry is weak, external effects of aquiculture is giving negative effects to coastal fishery. Therefore, aquaculture must improve as environmentally sound aquaculture for fisheries sustainability, and intensive aquaculture of high density must convert by low input sustainable aquaculture. Finally, the aquaculture system of Korea has to change to aquaculture for conservation of non - renewable resources and environment, it may contribute to development of Korean fisheries.

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A basic study for the development of energy conservation web education programs -focused on the lighting energy (에너지 절약 웹 교육 프로그램 개발을 위한 기초 연구 -조명 에너지 중심으로)

  • Kim, Na-Young;Chang, Soo-Jung;Choi, An-Seop;Chun, Jung-Yun
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2004.05a
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    • pp.200-204
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    • 2004
  • It is a global consent that we should conserve our energy consumption, due to our awareness to the environmental problems and the limitedness of the natural resource. In the country, the level of energy consumption is more than it is needed, according to its living standard and the proportion of resources imported from other countries. Educational program focused on energy conservation is essential to overcome these problems. This paper outlines a basic study on the development of an energy conservation education program for children. This program makes students aware of the importance and difficulties in energy conservation. The students can then make their own contribution and besides circulation of resources and improvement of health problems.

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A Study on Paper of Old Monk by Yun Duseo (윤두서필 노승도의 바탕 종이 고찰)

  • Cheon, Juhyun;Park, Miseon;Kim, Yein
    • Conservation Science in Museum
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    • v.16
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    • pp.82-95
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    • 2015
  • Old Monk by Yun Duseo is realized to use silver paper which is made of rarity material. This sudy investigates reason why silver, that is easily discoloration in environmental condition, is susceptible in present. The method was the surface treatment materials and the base fiber through direct observation, optical instruments and XRF analysis. Based on these results, reproducing experiment was conducted to research materials in paper of Old Monk and the surface treatment technique. The results, the paper was treated 'Dochim' with a mineral having polygonal crystals for improving smoothness and density. XRF analysis result showed high calcium content, therefore, the paper was not used silver, it guess pulverized shells of abalone or other types of shellfish. Accordingly, the research was narrowed down to shells with shiny, reflective surfaces which at the same time contain high amounts of calcium. A new experiment was conducted using unprocessed abalone shells. Through the reproducing experiment, shellfish has high possibility as used mineral in paper. Notwithstanding, this experiment was unable to precisely reproduce the smoothness and shine of the original paper. Further research may therefore be needed.