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Official Journal of the Japan Wood Research Society

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Articles

Page 41 of 41

  1. Sugi (Cryptomeria japonica D. Don) wood powder was carbonized at varying temperatures and used as a material to remove heavy metals from their aqueous solutions. Single solutions of mercuric chloride and mixed aq...

    Authors: Lilibeth L. Pulido, Toshimitsu Hata, Yuji Imamura, Shigehisa Ishihara and Takeshi Kajimoto
    Citation: Journal of Wood Science 1998 44:BF00521970
  2. Cortical microtubules (MTs) in differentiating compression wood tracheids of Taxus cuspidata stems were visualized by confocal laser microscopy. They were oriented obliquely at an angle of about 45° to the trache...

    Authors: Osamu Furusawa, Ryo Funada, Yutaka Murakami and Jun Ohtani
    Citation: Journal of Wood Science 1998 44:BF00521968
  3. To characterize the mechanism of the reaction of lignin with aqueous acetic acid (AW) containing a small amount of H2SO4, guaiacylglycerol-β-guaiacyl ether (GOG), and guaiacylglycerol-β-syringol ether (GOS) were ...

    Authors: Yoshihiro Sano, Shu Shimamoto, Makiko Enoki and Haruo Konno
    Citation: Journal of Wood Science 1998 44:BF00521966
  4. The thermal properties of isocyanate (IC) resin cured with water were studied using dynamic mechanical analysis (DMA) and Fourier transform infrared spectroscopy. The thermal properties of cured phenol formald...

    Authors: Kenji Umemura, Akihiro Takahashi and Shuichi Kawai
    Citation: Journal of Wood Science 1998 44:BF00521964
  5. Three-layered composite oriented strand boards were manufactured using very thin hinoki (Japanese cypress, Chamaecyparis obtusa Endl.) strands oriented in the faces and mixtures of sugi (Japanese cedar, Cryptomer...

    Authors: Min Zhang, Ee-ding Wong, Shuichi Kawai and Jin-heon Kwon
    Citation: Journal of Wood Science 1998 44:BF00521962
  6. The natural frequencies, aerodynamic noise, whistling noise, and self-excited vibration between the common circular saw with uniform thickness and the circular saw with step thickness (thin on its outer part a...

    Authors: Wuhua Cheng, Hideyuki Yokochi and Shiro Kimura
    Citation: Journal of Wood Science 1998 44:BF00521960
  7. Relations between various extracted basic densities and wood chemical components were investigated by their within-tree variations in Eucalyptus globulus for assistance in the prediction of the properties of wood...

    Authors: Toshihiro Ona, Tetsuya Sonoda, Kazuya Ito and Masaru Shibata
    Citation: Journal of Wood Science 1998 44:BF00521958
  8. The rolling shear strength of plywood was evaluated using a flexural vibration test. Test specimens were lauan and Douglas fir three-ply plywoods made from thick veneers. The dynamic shear and Young's moduli w...

    Authors: Heng Xu, Chiaki Tanaka, Tetsuya Nakao, Masahiro Yoshinobu and Hiroyuki Katayama
    Citation: Journal of Wood Science 1998 44:BF00526261
  9. Pernambuco (Guilandina echinata Spreng. syn Caesalpinia echinata Lam.), which has been used for a material of violin bows, was compared with substitutable wood species from the viewpoint of processing properties ...

    Authors: Masahiro Matsunaga and Kazuya Minato
    Citation: Journal of Wood Science 1998 44:BF00526260
  10. A practical approach to enhancing the fire retardancy of wood-based materials by adding fire-retardant chemicals to the glue was developed. Plywoods were manufactured using urea melamine formaldehyde resin mix...

    Authors: Wen-Yu Su, Subyakto, Toshimitsu Hata, Koei Nishimiya, Yuji Imamura and Shigehisa Ishihara
    Citation: Journal of Wood Science 1998 44:BF00526258
  11. Highly condensed lignin can be transformed by three reactions — phenolation, hydroxymethylation, and neutral sulfonation — to water-soluble lignosulfonate. To elucidate reactivities and products in the latter ...

    Authors: Seiichi Yasuda, Eri Hamaguchi, Yasuyuki Matsushita, Hideyuki Goto and Takanori Imai
    Citation: Journal of Wood Science 1998 44:BF00526256
  12. myo-Inositol-[2-3H] and d-glucuronic acid-[6-14C] were administered simultaneously to a growing stem of magnolia (Magnolia kobus DC) to label xylan and pectin, respectively, in the cell wall. Determination of th...

    Authors: Takanori Imai, Hideyuki Goto, Hiroyuki Matsumura and Seiichi Yasuda
    Citation: Journal of Wood Science 1998 44:BF00526254
  13. To obtain basic information on the stability, decomposition, and recycling of biodegradable polyurethane foam (PUF), we studied hydrolysis and aminolysis of the PUF derived from wattle tannin (WT). The WT-PUF ...

    Authors: Jin-Jie Ge and Kokki Sakai
    Citation: Journal of Wood Science 1998 44:BF00526253
  14. We prepared carpet cleaners containing three wood oils extracted from Thujopsis dolabrata Sieb. et Zucc. var. hondai Makino, Chamaecyparis obtusa Endl., and Chamaecyparis taiwanensis Masamune et Suzuki and studie...

    Authors: Noboru Yamamoto, Yoshifumi Miyazaki and Keisuke Sakuda
    Citation: Journal of Wood Science 1998 44:BF00526251
  15. Lignin content in the cell wall was investigated to examine its relation with growth stress, using an ultraviolet microscopic spectrum analyzer. Although a weak correlation existed between the growth stress an...

    Authors: Takashi Okuyama, Hiroshi Takeda, Hiroyuki Yamamoto and Masato Yoshida
    Citation: Journal of Wood Science 1998 44:BF00526250
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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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