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Official Journal of the Japan Wood Research Society

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Articles

Page 42 of 42

  1. Sitka spruce (Picea sitchensis Carr.) wood was heated for 0.5–16.Oh at temperatures of 120°–200°C in nitrogen gas or air. The values for Young's modulus, shear modulus, and loss tangent were measured by free-free...

    Authors: Yoshitaka Kubojima, Takeshi Okano and Masamitsu Ohta
    Citation: Journal of Wood Science 1998 44:BF00521878
  2. The effect of plantation spacings (types A-E) on the bending strength and dynamic modulus of elasticity of 41-year-old Taiwan-grown cedar (Cryptomeria japonica D. Don) was investigated. The results indicate that ...

    Authors: Song-Yung Wang and Chih-Yu Ko
    Citation: Journal of Wood Science 1998 44:BF00521876
  3. Wood charcoal carbonized at various temperatures was analyzed by X-ray photoelectron spectroscopy (XPS), Fourier-transform infrared spectroscopy (FTIR), and X-ray diffractometry to investigate the changes of c...

    Authors: Koei Nishimiya, Toshimitsu Hata, Yuji Imamura and Shigehisa Ishihara
    Citation: Journal of Wood Science 1998 44:BF00521875
  4. The reaction during the early stage of photodiscoloration of constituents in western hemlock [Tsuga heterophylla (Raf. Sarg., Pinaceae] sapwood was investigated with chemical methods. The main photodiscoloring co...

    Authors: Fumio Kawamura, Megumi Miyachi, Shingo Kawai and Hideo Ohashi
    Citation: Journal of Wood Science 1998 44:BF00521874
  5. Many products and abundant wastes from tropical plantations, such as latex, palm oil, and coconut production due to replantation, are waiting effective utilization. Nonutilized tropical biomass — oil palm (Elaeis...

    Authors: Satoshi Suzuki, Evelyn B. Rodriguez, Kenji Iiyama, Kyoko Saito and Hiroyuki Shintani
    Citation: Journal of Wood Science 1998 44:BF00521873
  6. The piezoelectricity of cyanoethylated hydroxyethylcellulose was investigated. Elastic, piezoelectric, and dielectric relaxations were observed at −80° to −60°C and 0° to 20°C at a frequency of 10Hz. The activ...

    Authors: Nobuyuki Hirai, Kooji Ootake, Kyouji Suzuki, Nobuo Sobue, Munehiro Date and Toyoko Watanabe
    Citation: Journal of Wood Science 1998 44:BF00521872
  7. This study investigated the relation between piezoelectric behavior and the deformation of trachieds in real time under combined compression and vibration stresses. Scanning electron microscope images were rec...

    Authors: Takahisa Nakai, Naoyasu Igushi and Kose Ando
    Citation: Journal of Wood Science 1998 44:BF00521871
  8. The changes in the velocity of ultrasonic waves propagating in wood parallel to the direction of applied stress are discussed. The ultrasonic mode was longitudinal waves traveling along the direction of applie...

    Authors: Yasutoshi Sasaki, Toshihiro Iwata and Kosei Ando
    Citation: Journal of Wood Science 1998 44:BF00521870
  9. When measuring the shear modulus of wood by static bending tests, the basic theory is dependent on Timoshenko's bending theory. The shear modulus obtained by static bending is a much smaller value than that de...

    Authors: Hiroshi Yoshihara, Yoshitaka Kubojima, Koji Nagaoka and Masamitsu Ohta
    Citation: Journal of Wood Science 1998 44:BF00521869
  10. The transverse shrinkage behavior of early wood and late wood tracheids of radiata pine (Pinus radiata D. Don) was investigated by the power spectrum analysis. The representative cell model shapes before and afte...

    Authors: Ugai Watanabe, Misato Norimoto, Minoru Fujita and Joseph Gril
    Citation: Journal of Wood Science 1998 44:BF00521868
  11. The color of 97 species of wood specimens from French Guiana was measured on their radial and tangential surfaces with a colorimeter. We obtained the tristimulus values of X, Y, and Z of the 10° standard observer...

    Authors: Yoshihiko Nishino, Gérard Janin, Bernard Chanson, Pierre Détienne, Joseph Gril and Bernard Thibaut
    Citation: Journal of Wood Science 1998 44:BF00521867

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