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Official Journal of the Japan Wood Research Society

Journal of Wood Science Cover Image

Articles

Page 38 of 38

  1. The feasibility of applying ultrasonics to the chlorophyll extraction of bamboo culm was evaluated to establish an efficient reliable method for chlorophyll extraction from the epidermis of bamboo culm. The re...

    Authors: Shang-Tzen Chang, Sheng-Yang Wang and Jyh-Horng Wu

    Citation: Journal of Wood Science 1998 44:BF00521879

    Content type: Note

    Published on:

  2. 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

    Content type: Note

    Published on:

  3. 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

    Content type: Note

    Published on:

  4. 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

    Content type: Original Article

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  5. 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

    Content type: Original Article

    Published on:

  6. 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

    Content type: Original Article

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  7. 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

    Content type: Original Article

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  8. 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

    Content type: Original Article

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  9. 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

    Content type: Original Article

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  10. 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

    Content type: Original Article

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  11. 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

    Content type: Original Article

    Published on:

  12. 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

    Content type: Original Article

    Published on:

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