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국내연구정보 (Domestic information)
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  Sorption, Thermal, Electrical and Acoustic Properties of Pinus koraiensis and Larix kaempferi
  글쓴이 : 관리자     날짜 : 09-11-05 11:42     조회 : 9737    
국산재의 응용물성연구Ⅱ: 잣나무와 낙엽송의 수분흡착성 및 열적・전기적・음향적 성질
Study on Physical Properties of Domestic Species Ⅱ: Sorption, Thermal, Electrical and
Acoustic Properties of Pinus koraiensis and Larix kaempferi  <Mokchae Konghak 36(4):1-10, 2008> Corresponding author hsbyeon@gnu.ac.kr

A series of the studies on the applied physical properties of domestic species was
conducted last three years. Pinus koraiensis and Larix kaempferi were two of the three
species examined for the first year. Because the same apparatus and experimental
procedures were used for all species, their results can be easily comparable. The
experiments for sorption property were conducted with 20- and 80-mesh wood powder
and resulted in their EMCs and sorption isotherms at various RH conditions. The thermal
conductivity and diffusivity, and electric resistance and volumetric electric resistivity were
measured with a thermal-wire device and a high electric resistance meter. The differences
in the thermal and electric properties between quarter-  and flat-sawn specimens were
observed, which were partially attributed to their anatomical differences. An acoustic
measurement system was used to evaluate dynamic MOE and internal friction. This paper
provides the useful fundamental data for designing a wood structure, correcting a portable
resistance-type moisture meter, and acoustic properties of wood.

Keywords: Pinus koraiensis, Larix kaempferi, sorption isotherm, thermal conductivity,
thermal diffusivity, electric volume resistivity, electric resistance, acoustic property, dynamic MOE, 
internal friction

   

 
   

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