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Official Journal of the Japan Wood Research Society

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Articles

Page 39 of 43

  1. In the reaction of green tea catechins with formaldehyde at room temperature (25°C), tea catechins were found to have reactivity. In particular, (-)-epicatechin gallate and (-)-epigallocatechin gallate, which ...

    Authors: Akiko Takagaki, Katsuhiko Fukai, Fumio Nanjo and Yukihiko Hara
    Citation: Journal of Wood Science 2000 46:BF00766227
  2. Sapwood blocks of sugi (Cryptomeria japonica) and akamatsu (Pinus densiflora) were coated with Zn/Al (45%/55%) alloy metal at thicknesses of 20–30, 90–100, and 180–200μm by an arc spray gun. They were served for ...

    Authors: Tsuyoshi Yoshimura and Munezoh Takahashi
    Citation: Journal of Wood Science 2000 46:BF00766225
  3. The optimum working moisture content of a wood matrix for the garbage automatic decomposer-extinguisher (GADE) machine was investigated using a small-scale degradation reactor. A formula feed for rabbits was u...

    Authors: Sakae Horisawa, Yutaka Tamai, Yoh Sakuma, Shuichi Doi and Minoru Terazawa
    Citation: Journal of Wood Science 2000 46:BF00766223
  4. Interactions between pulp fibers and aluminum compounds in pulp suspensions were studied using fibrous cellulose (FC) and fibrous carboxymethylcellulose (FCMC) powders as models of pulp fibers by X-ray fluores...

    Authors: Masato Kato, Akira Isogai and Fumihiko Onabe
    Citation: Journal of Wood Science 2000 46:BF00766222
  5. A test method for measuring formaldehyde from urea-formaldehyde (UF) resins at high temperature was developed and used to assess the influence of the reaction pH on the formaldehyde emission and heat stability...

    Authors: Shin -ichiro Tohmura, Chung -Yun Hse and Mitsuo Higuchi
    Citation: Journal of Wood Science 2000 46:BF00766221
  6. As an essential preliminary evaluation for understanding the hydration behavior of wood-cement-water mixtures, an isothermal calorimetry and experimental method were used to measure the hydration heat of woodc...

    Authors: Yi Min Wei, Yia Guang Zhou and Bunichiro Tomita
    Citation: Journal of Wood Science 2000 46:BF00766220
  7. Oriented strand boards (OSB) were made using sugi wood strand with different lengths at different free fall distance conditions. Strand alignment and mechanical properties of sugi OSB were evaluated. Results o...

    Authors: Shigehiko Suzuki and Kenichi Takeda
    Citation: Journal of Wood Science 2000 46:BF00766219
  8. To examine the effectiveness of long rotation forestry and the potential of complete utilization of Japanese larch (Larix kaempferi Carriere), we designed a tensile test using the lumber from six 87-year-old samp...

    Authors: Jianjun Zhu, Tatsuo Nakano, Morihiko Tokumoto and Takashi Takeda
    Citation: Journal of Wood Science 2000 46:BF00766218
  9. Evidence for the presence of lignin-carbohydrate bonds of the benzylic ether type in wood and pulps may be obtained by use of ozonation treatment to selectively degrade the lignin. It was found that the benzyl...

    Authors: Olov Karlsson, Tsutomu Ikeda, Takao Kishimoto, Kengo Magara, Yuji Matsumoto and Shuji Hosoya
    Citation: Journal of Wood Science 2000 46:BF00776460
  10. Chinese raw tall oil samples, which were obtained from pulp and papermaking factories in Qingzhou and Jiamusi, were first divided into acidic and neutral parts with a diethylaminoethyl-Sephadex (DEAE-Sephadex)...

    Authors: Shi-Fa Wang, Takeshi Furuno, Zhi Cheng, Tohru Uehara and Sadanobu Katoh
    Citation: Journal of Wood Science 2000 46:BF00776459
  11. Heartwood of pernambuco (Guilandina echinata Spreng, synCaesalpinia echinata Lam.), which has been used as material for violin bows, was extracted by soaking in water, and the obtained extractives were analyzed. ...

    Authors: Masahiro Matsunaga, Keiko Sakai, Hiroshi Kamitakahara, Kazuya Minato and Fumiaki Nakatsubo
    Citation: Journal of Wood Science 2000 46:BF00776458
  12. Copper and arsenic K-edge X-ray absorption fine structure spectroscopy (EXAFS) of pine wood (Pinus radiata) treated with chromated copper arsenate (CCA) timber preservative have been measured. Refinement of the d...

    Authors: David C. Bull, Peter W. Harland, Claire Vallance and Garry J. Foran
    Citation: Journal of Wood Science 2000 46:BF00776457
  13. To examine the feasibility of using plate-type waveguides for effective detection of acoustic emissions (AEs) from termite attacks in wood, AEs generated by breaking pencil leads or by termite attacks were det...

    Authors: Yoshiyuki Yanase, Yoshihisa Fujii, Shogo Okumura, Yuji Imamura and Tsuyoshi Yoshimura
    Citation: Journal of Wood Science 2000 46:BF00776456
  14. We have isolated the cDNA and genomic sequences encoding the major isozyme of manganese peroxidase, MnP3, from the white rot basidiomycetePleurotus ostreatus strain IS1. The genemnp3 is interrupted by 10 introns ...

    Authors: Toshikazu Irie, Yoichi Honda, Hyo-Cheol Ha, Takashi Watanabe and Masaaki Kuwahara
    Citation: Journal of Wood Science 2000 46:BF00776454
  15. Our previous paper showed tobacco stalks to posses the characteristics of a raw material for pulp and paper application. It contains the major biomass constituents and cell components common to wood species. I...

    Authors: Shirley Agrupis, Eiichi Maekawa and Kyoji Suzuki
    Citation: Journal of Wood Science 2000 46:BF00776453
  16. The effect of steam-exploded wood flour (SE) added to wood flour/plastic composite was examined using SE from beech, Japanese cedar, and red meranti and three kinds of thermoplastic polymer: polymethylmethacry...

    Authors: Masahiro Takatani, Osamu Kato, Takashi Kitayama, Tadashi Okamoto and Mitsuhiko Tanahashi
    Citation: Journal of Wood Science 2000 46:BF00776451
  17. Two main types of fiberboards were produced using lauan (Shorea spp.) fibers with an isocyanate resin as the binder; fiberboard with a flat, homogeneous (homoprofile), and typical U-shaped (conventional) density ...

    Authors: Ee Ding Wong, Min Zhang, Guangping Han, Shuichi Kawai and Qian Wang
    Citation: Journal of Wood Science 2000 46:BF00776450
  18. In past years high priority was given to developing a seismic design for wood structures, including research on the response of wood structures to earthquakes. In this study a new type of portal frame with rel...

    Authors: Ciprian Pîrvu, Hiroaki Yoshida, Masahiro Inayama, Motoi Yasumura and Kinji Taki
    Citation: Journal of Wood Science 2000 46:BF00776449
  19. Polyelectrolyte titration using a fluorescent indicator was applied to determine the electrolytic charges in 10 whiskies at various pH levels. Tannic acid was also titrated to compare the relation between pH a...

    Authors: Hiroo Tanaka, Tomomi Tsukada, Hideaki Ichiura and Hiroyuki Wariishi
    Citation: Journal of Wood Science 2000 46:BF00777367
  20. The phenolic constituents of the roots ofTaxus cuspidata (Japanese yew) were investigated. Four lignans, [(+)-taxiresinol (1), (+)-lariciresinol (2), (−)-secoisolariciresinol (3), and (+)-pinoresinol (4)] were is...

    Authors: Fumio Kawamura, Yoshinari Kikuchi, Tatsuro Ohira and Mitsuyoshi Yastagai
    Citation: Journal of Wood Science 2000 46:BF00777366
  21. Change in the oxidation state of manganese atoms in unbleached hardwood kraft pulp (UKP) during the biological bleaching of UKP withPhanerochaete sordida YK-624 was determined by the electron spin resonance (ESR)...

    Authors: Hirofumi Hirai, Takayuki Oniki, Ryuichiro Kondo and Kokki Sakai
    Citation: Journal of Wood Science 2000 46:BF00777365
  22. Antifeedant activity of some flavonoids and their related compounds against the subterranean termiteCoptotermes formosanus Shiraki was examined with nochoice tests and two-choice tests. The activities of these co...

    Authors: Wakako Ohmura, Shuichi Doi, Masakazu Aoyama and Sciji Ohara
    Citation: Journal of Wood Science 2000 46:BF00777362
  23. Synthesis conditions of terpene-phenol-aldehyde resin with a high softening point were studied based on the reactions amongα-pinene, phenol, and formaldehyde. A suitable catalyst system and the best processing co...

    Authors: Shi-Fa Wang, Takeshi Furuno and Zhi Cheng
    Citation: Journal of Wood Science 2000 46:BF00777361
  24. The role of Tween 80 in biobleaching of unbleached hardwood kraft pulp (HWKP) with manganese peroxidase (MnP) was investigated. Among the surfactants (e.g., Tween 80, Tween 20, CHAPSO) the most significant bri...

    Authors: Katsunobu Ehara, Yuji Tsutsumi and Tomoaki Nishida
    Citation: Journal of Wood Science 2000 46:BF00777360
  25. In the present study the specifically13C-enriched lignin precursors of biosynthesis (i.e., coniferin-[side chainα13C], coniferin-[side chain-β13C] and coniferin-[side chain-γ13C]) were synthesized and administ...

    Authors: Yimin Xie, Sciichi Yasuda, Hong Wu and Huanbin Liu
    Citation: Journal of Wood Science 2000 46:BF00777359
  26. To clarify the lowering mechanism of loss tangen (tanδ) of sitka spruce (Picea sitchensis Carr.) wood impregnated with extractives of pernambuco (Guilandina echinata Spreng. synCaesalpinia echinata Lam.), we exam...

    Authors: Masahiro Matsunaga, Eiichi Obataya, Kazuya Minato and Fumiaki Nakatsubo
    Citation: Journal of Wood Science 2000 46:BF00777358
  27. There have been many attempts to predict the performance of glulam beams. Several approaches have been taken, from early empirical techniques to more sophisticated stochastic methods. In recent years, more emp...

    Authors: Jun-Jae Lee and Gwang-Chul Kim
    Citation: Journal of Wood Science 2000 46:BF00777357
  28. Changes in the velocity of ultrasonic waves propagating in wood normal to the direction of applied stresses are discussed. The ultrasonic modes considered here are longitudinal waves and shear waves with parti...

    Authors: Masumi Hasegawa, Yasutoshi Sasaki and Toshihiro Iwata
    Citation: Journal of Wood Science 2000 46:BF00777355
  29. It is well known that the presence of knots in structural lumber is one of the most important strengthreducing factors. For practical purposes, visual grading including knot restriction is an effective method ...

    Authors: Takashi Taked and Takeo Hashizume
    Citation: Journal of Wood Science 2000 46:BF00777354
  30. To investigate the influence of water on heat treatment, green wood was heat-treated. Sitka spruce (Picea sitchensis Carr.) with about 60% moisture content (MC) was used. Young's modulus and loss tangent were mea...

    Authors: Yoshitaka Kubojima, Takeshi Okano and Masamitsu Ohta
    Citation: Journal of Wood Science 2000 46:BF00779555
  31. As an example of activated carbon (AC) moldings, AC sheets were prepared from thermoplastic acetic acid lignin by lamination. The resulting AC sheets are a new type of product that can be applied as water and ...

    Authors: Yasumitsu Uraki, Ryo Taniwatashi, Satoshi Kubo and Yoshihiro Sano
    Citation: Journal of Wood Science 2000 46:BF00779553
  32. A new method is applied to evaluate the progress of the oxidation reaction of lignin during oxygen-alkali treatment. This method employs the difference in permanganate consumption of the sample before and afte...

    Authors: Guolin Tong, Tomoya Yokoyama, Yuji Matsumoto and Gyosuke Meshitsuka
    Citation: Journal of Wood Science 2000 46:BF00779550
  33. A plasticization method for cellulose acetates (CAs) has been developed that is based on the reaction with dibasic acid anhydrides and monoepoxides during the melting processing. As a continuation of the discu...

    Authors: Mariko Yoshioka, Katsuya Okajima, Tomoko Miyazaki and Nobuo Shiraishi
    Citation: Journal of Wood Science 2000 46:BF00779549
  34. Anisotropic thermal properties of molded carbon phenolic spheres (CPS), a mixture of sugi wood charcoal powders and phenol formaldehyde resin molded with a hot press, were investigated. The effects of the carb...

    Authors: Subyakto, Toshimitsu Hata, Shuichi Kawai, Yuji Imamura and Isamu Ide
    Citation: Journal of Wood Science 2000 46:BF00779548
  35. The load-deflection curve for static bending and the force-time curve for impact bending of heat-treated wood were examined in detail. The effect of oxygen in air was also investigated. Sitka spruce (Picea sitche...

    Authors: Yoshitaka Kubojima, Takeshi Okano and Masamitsu Ohta
    Citation: Journal of Wood Science 2000 46:BF00779547
  36. Tension wood was induced inEucalyptus camaldulensis L. by fixing the stem at an angle. Proteins in the differentiating tissue of tension wood were compared to those of normal wood on sodium dodecyl sulfate polyac...

    Authors: Kei'ichi Baba, Takayuki Asada and Takahisa Hayashi
    Citation: Journal of Wood Science 2000 46:BF00779546

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