• 제목/요약/키워드: Journal of the Korean Wood Science and Technology

검색결과 2,615건 처리시간 0.034초

Change of Dimensional Stability of Thermally Compressed Korean Pine (Pinus koraiensis Sieb. et Zucc.) Wood by Heat Treatment (잣나무 열압밀화재의 열처리에 의한 치수안정성 변화)

  • Cho, Beom-Geun;Hwang, Sung-Wook;Kang, Ho-Yang;Lee, Won-Hee
    • Journal of the Korean Wood Science and Technology
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    • 제43권4호
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    • pp.470-477
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    • 2015
  • This study was carried out to investigate the change of dimensional stability of thermally compressed Korean pine (Pinus koraiensis Sieb. et Zucc.) wood by post heat treatment. Specific gravity of compressed wood was notably increased with thermal compression. In the compression set 50%, compressed Korean pine showed a specific gravity of 0.84. The amount of water absorption and swelling of thermally compressed Korean pine decreased with increasing temperature and time of the heat treatment. Set recovery also decreased with increasing temperature and time of heat treatment. Thermally compressed Korean pine that heat-treated in $120^{\circ}C$ for 24 hours showed a set recovery of 3.8%, whereas non-treated group showed 11.5%. Therefore, it was confirmed that the thermal treatment was a very effective method for the dimensional stability of the heat compressed wood.

Investigation of Color Difference in ACQ and CBHDO Treated Wood During Two-year Outdoor Exposure

  • Lim, Jinah;Oh, Jung-Kwon;Hong, Jung-Pyo;Lee, Jun-Jae
    • Journal of the Korean Wood Science and Technology
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    • 제43권2호
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    • pp.265-273
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    • 2015
  • In general, when wood products are used outdoors for a certain period of time the surface color of wood changes due to light, water, heat and so on. This color change can be considered importantly for the product's market value. In this study, the color change of ACQ (Alkaline Copper Quaternary) and CBHDO (CuO $H_3BO_3$ N-cyclohexyldiazenium-anion) treated wood and untreated wood was investigated during 2-year weathering test. From this experimental study, it was found that the colors of the treated wood changed more reddish and yellowish from green. Meanwhile, the untreated wood turned to grey color rapidly. Also, the color of the treated wood in short-term exposure changed closer to the inherent color of the fresh natural wood than that of the untreated woods.

A Study on the Diffusion Strategies of Wood Culture Using Analytic Hierarchy Process (AHP)

  • Jiyoon YANG;Myungsun YANG;Yeonjung HAN;Myungkil KIM;Won Joung HWANG
    • Journal of the Korean Wood Science and Technology
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    • 제51권6호
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    • pp.555-568
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    • 2023
  • The diffusion strategies of wood culture were established using the analytic hierarchy process, to prepare a diffusion plan of wood culture and wood utilization in response to climate change due to global warming. 'Standardization of wood culture', 'Valuation of wood culture', and 'Habituation of wood culture' were set as three major implementation strategies and priorities were evaluated. As a result, it was analyzed in the following order: 'Development of systematic education programs for each age group for rational and efficient use of eco-friendly wood materials and development of wood education standard guidelines linked to the curriculum', 'Preparation of scientific basis data on human compatibility and eco-friendliness of wood to ensure the reliability of wood and wood products', and 'Establishment of monitoring and improvement plan through the designation as a model school'. Through this, it was determined that an educational environment, changes in public attitudes through publicity, and expanding opportunities to use wood and wood products were necessary for wood culture diffusion. The results of this study can be used as basic data to derive the diffusion strategies of wood culture and establish a roadmap and policy implementation strategy to revitalize wood culture.