• Title/Summary/Keyword: 목재

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A Study on the clusterization of wood industry in incheon (인천지역 목재산업의 클러스터화를 위한 고찰)

  • Jo, Yong-Cheol;Nam, Yeong-U;Lee, Du-Yong;Jang, Jeong-Hwan;Lee, Chang-Ho
    • Proceedings of the Safety Management and Science Conference
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    • 2011.11a
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    • pp.513-522
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    • 2011
  • 2009년 인천지역의 목재 및 나무제품제조업과 가구 제조업체는 총 1,285개로 각각 전국 목재 관련 제조업체의 10.4%와 6.7%를 차지하여, 일반 제조업의 전국비중 6.1%에 비해 높은 비율을 보이고 있다. 또한 종사자 수 역시 총 13,202명으로 각각 전국 목재 관련 제조업체의 21.0%와 9.9%로 인천이 큰 비중 차지하고 있다. 한국은행(2009)에서 발표한 지역별 산업 산출액 기준으로도 인천지역의 산출액은 수도권의 12.5%, 전국의 5.5%를 차지하고 있는데, 이중 가구 기타제조업(12.8%), 목재 종이(10.6%) 등은 전국에 비해 상대적으로 높은 비중을 보이고 있다. 본 연구에서는 최근 친환경 저탄소정책으로 다시금 부각되고 있는 천연목재를 기반으로 한 인천지역 목재산업을 육성할 수 있는 대안으로 인천항을 중심으로 한 목재산업 클러스터화를 위한 고찰을 수행하고자 관련 연구 문헌 및 설문 조사를 기반으로 목재산업단지 조성의 필요성과 경제적 파급효과를 제시하고자 한다.

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Wood decay Detection by Non-destructive Methods (비파괴 방법을 이용한 목재의 부후 탐지)

  • Son, Dong-Won;Lee, Dong-Heub
    • Journal of the Korean Wood Science and Technology
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    • v.32 no.4
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    • pp.74-81
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    • 2004
  • The ultrasonic non-destructive method was used for wood decay test. The temperature change and moisture contents of wood were estimated how the ultrasonic wave velocity changes. The relationship between weight loss of wood decayed by T. palustris and ultrasonic wave velocity was investigated. The non-destructive methods of different condition of logwood were estimated. Decay map of old wood was made by non destructive methods. Through these tests, we can accumulate the data to judge the degree of wood decay. The decay map of wood could be used for the analysis of old wood.

Analysis of the Defects in Wooden Landscape Facilities according to the Type of Timber - Focused on the Defects in Pillars of Out Door Rest Furniture - (목재 조경시설물의 목재 종류별 하자분석 - 휴게시설물 목재기둥의 균열하자를 중심으로-)

  • Park, Won-Kyu;Shin, Hoon
    • Journal of the Korean Institute of Landscape Architecture
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    • v.40 no.3
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    • pp.81-90
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    • 2012
  • Improvements in the quality of life have resulted in a heightened awareness of safety and the environment. As a result, timber as an environmentally friendly material, is used for landscape facilities and a wide range of purposes. But there are a large number of defects since there are twists and cracks that can be found in wooden landscape facilities. This has led to the use of imported hardwood instead of the Western Hemlock which has been in widespread use. Hardwood is expensive. However, it is being used without any information or research on how much it reduces the actual defects. Construction contractors are in great need of information on the characteristics and defect rates of different types of timber. This study investigated and analyzed the cracks in four types of timber - namely the Western Hemlock, Burckella, Nyatoh and Malas - in order to provide basic information to construction contractor for them to be able to select and use the appropriate type of timber. The main results of this study are as follows. First, the Western Hemlock had 1.90 $cracks/m^2$, Malas had 0.83 $cracks/m^2$, Burckella had 0.14 $cracks/m^2$, and the Nyatoh had the least number of surface defects at 0.04 $cracks/m^2$. Second, while Malas has the highest degree of strength timber, Nyatoh had the smallest defect rate. This showed that having high timber strength does not necessarily mean it has less defects. Third, the Western Hemlock was the least expensive and Burckella was the most expensive. However, considering the cost of repairing defects, it would be economically advantageous to use Burckella and Nyatoh which have low defect rates. This study aimed to provide basic information to landscape construction contractors for them to be able to select and use the appropriate type of timber when constructing wooden outdoor rest furniture. The results are expected to contribute to quality enhancements and defect reduction in landscape facilities.

Determination of Equilibrium Moisture Content of Outdoor Woods by Using Hailwood-Horrobin Equation in Korea (Hailwood-Horrobin 방정식을 이용한 한국의 야외 목재평형함수율 결정)

  • Ra, Jong-Bum
    • Journal of the Korean Wood Science and Technology
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    • v.42 no.6
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    • pp.653-658
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    • 2014
  • This research was carried out to investigate equilibrium moisture content (EMC) of wood in outdoor locations in Korea. EMC was calculated using Hailwood-Horrobin equation for 73 different locations in Korea using the 1981 to 2010 climate normal data obtained from the Korea Meteorological Admnistration (KMA). Daegu showed the lowest values of EMC (11.5), and the highest EMC values (15.8) was found in Heuksando. Considering the season effect, summer (June, July, August) showed the highest values 15.3, followed by autumn (September, October, November) 13.7, winter (December, January, February) 12.2, and spring (February, March, April) 12.0. Monthly EMC showed the lowest values 11.6 in April and July showed the highest EMC values 16.1. The smallest changes in monthly EMC were found in Jeju island and Heuksando showed the largest values 8.7. A proper wood drying based on average EMC is more required in the regions with larger variation in EMC.

Change of Decay Hazard Index (Scheffer Index) for Exterior Above-Ground Wood in Korea (국내 지상부 사용(H3) 목재의 부후위험지수(Scheffer Index) 변화)

  • Kim, Taegyun;Ra, Jong-Bum
    • Journal of the Korean Wood Science and Technology
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    • v.42 no.6
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    • pp.732-739
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    • 2014
  • This research was performed to investigate the effect of recent climate changes on wood decay hazard index (Scheffer index) in Korea. The index was determined using a climate data of 58 different locations obtained from the website of Korea Meteorological Administration (KMA), and the wood decay hazard index was determined at the intervals of 10 years. Most of regions in Korea except Juju island showed wood decay hazard index values between 35 and 65, considered to be moderate decay hazard zones. But in recent 10 years (2003~2012), the wood decay hazard index was rapidly increased, resulting in showing many high decay hazard regions. The trend may be explained by the in crease of temperature and precipitation. The recent climate change of Korea turning into the weather of subtropical region may explain the increase of wood decay hazard index.

Observation of Shrinkage Features of Cross Sectional Surface of Wood by LV-SEM (저진공주사현미경(LV-SEM)을 이용한 목재횡단면의 수축거동관찰)

  • Kang, Chunwon;Matsumura, Junji;Kang, Wook
    • Journal of the Korean Wood Science and Technology
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    • v.36 no.3
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    • pp.17-23
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    • 2008
  • The purpose of this study is to estimate the shrinkage of wood by LV-SEM (Low-Vacuum Scanning Electron Microscope) which can observe wetted wood sample. The shrinkage of small sample specimen by the dehumidification in the specimen chamber was investigated and compared with that of normal wood specimen. The observation of cross sectional surface of wood from wetted condition to dried condition can be achieved in about twenty minutes by means of the dehumidification in the specimen chamber of LV-SEM. The volumetric shrinkage of earlywood was almost the same as that of latewood. The shrinkage of SEM observation specimen was similar to that of normal wood specimen. From the correlation of the shrinkages between SEM observation specimen and normal wood specimen, it is surmised that the shrinkage of wood is more strictly dominated by shrinkage of latewood than that of earlywood.

Comparison with Combustion Properties of Wood-Plastic Composites (Wood-Plastic Composite의 연소특성 비교)

  • Song, Young-Ho;Shin, Baek-Woo;Lee, Dong-Ho;Chung, Kook-Sam
    • Proceedings of the Korea Institute of Fire Science and Engineering Conference
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    • 2010.10a
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    • pp.251-256
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    • 2010
  • 주거 건축 및 가구산업의 자재로써 합성목재(Wood-Plastic Composites)는 점차 각광받고 있다. 본 연구에서는 합성목재의 연소특성을 살펴보기 위하여 한계산소지수 측정(ASTM D2863) 및 콘칼로리미터 시험(ISO 5660-1)을 실시하였으며 또한 일반목재인 적송(red pine)과 방부 처리를 한 방부목에 대하여도 동일한 시험을 통하여 합성목재와 연소특성을 비교 검토하였다. 한계산소지수 측정결과 합성목재가 적송 및 방부목에 비해 가장 낮게 측정되었다. 콘칼로리미터 시험결과 합성목재의 열방출률값이 가장 빨리 피크치에 도달하였고 점차적으로 감소하였다. 합성목재의 최대 열방출률 값 및 평균 열방출률 값은 적송 및 방부목에 비해 가장 높게 나타났으며 총 방출열량 또한 가장 높게 나타났다.

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Current Researches on The Weathering of Wood (목재의 기상열화에 관한 최근의 연구 동향)

  • Kim, Yeong-Suk
    • Journal of the Korean Wood Science and Technology
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    • v.45 no.5
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    • pp.483-494
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    • 2017
  • This was reviewed on the characteristics (changes of color, microscopic structures, and chemical degradations) that appears on wood surface, when wood is exposed to outdoors and weathering testing methods applicable for assessment of wood weatherability in outside environment through literature reviews.

수출입화물 목재포장재 검역요령

  • 국립식물검역원
    • The monthly packaging world
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    • s.191
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    • pp.106-123
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    • 2009
  • 국립식물검역원이 수출입화물목재포장재 검역요령(안)을 발표했다. 이는 식물방역법 개정에 따라 수입화물의 목재포장재 검역요령(식물검역원 고시 2006-14호)과 수출화물의 목재포장재검역요령(식물검염원 고시 2006-8호)을 통합하여 민원인의 편의를 증진하고 검역관이 활용하기 편하도록 하는데 목적이 있다. 이번 법안은 현행 목재포장재검역요령 중에서 국제기준과 현실에 맞지 않거나 일선 검역관 및 업체에서 개선을 요구한 사항을 반영했고, 이해하기 쉽도록 산재되어 있거나 중복된 내용을 간결하게 하고 "열처리업체운영정보시스템"구축에 맞게 서식 등을 정비했다. 본 고에서는 검역요령 법안과 함께 소독처리마크와 마크표지 방법 등에 대해 살펴본다.

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