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Official Journal of the Japan Wood Research Society

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Articles

Page 34 of 38

  1. A suitable screening method for heterozygous DNA markers in shiitake,Lentinula edodes (Berk.) Pegler, is reported. Monokaryons were derived from a dikaryon by de-dikaryotization via protoplast formation. Compatib...

    Authors: Kazuhiro Miyazaki, Hajime Maeda, Masahide Sunagawa, Yutaka Tamai and Susumu Shiraishi

    Citation: Journal of Wood Science 2000 46:BF00776403

    Content type: Original Article

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  2. The inhibitory effects of 17 samples prepared from Thailand plants on 5α-reductase activity were examined. The acetone extract of leaves ofArtocarpus altilis showed potent 5α-reductase inhibitory activity. Fracti...

    Authors: Kuniyoshi Shimizu, Ryuichiro Kondo, Kokki Sakai, Supanida Buabarn and Uraiwan Dilokkunanant

    Citation: Journal of Wood Science 2000 46:BF00776401

    Content type: Original Article

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  3. 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

    Content type: Notes

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  4. New materials containing carboxylate groups have been synthesized by grafting polyacrylic acid onto sawdust. These new adsorbents were subjected to continuous extraction of different metal ions using packed co...

    Authors: Magali Geay, Véronique Marchetti, André Clément, Bernard Loubinoux and Philippe Gérardin

    Citation: Journal of Wood Science 2000 46:BF00766226

    Content type: Note

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  5. 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

    Content type: Note

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  6. Binderless boards were prepared from steam-exploded fiber of oil palm(Elaeis guineensis Jacq.) frond at six levels of explosion conditions. Their properties were investigated and evaluated. The mechanical propert...

    Authors: Nikhom Laemsak and Motoaki Okuma

    Citation: Journal of Wood Science 2000 46:BF00766224

    Content type: Note

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  7. 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

    Content type: Original Article

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  8. 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

    Content type: Original Article

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  9. 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

    Content type: Original Articles

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  10. 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

    Content type: Original Article

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  11. 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

    Content type: Original Article

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  12. 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

    Content type: Original Article

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  13. We examined the accuracy of the shear properties of wood by the Iosipescu shear test using specimens whose shape was simplified. Quartersawn boards of sitka spruce (Picea sitchensis Carr.) and shioji (Japanese as...

    Authors: Yoshitaka Kubojima, Hiroshi Yoshihara, Hisashi Ohsaki and Masamitsu Ohta

    Citation: Journal of Wood Science 2000 46:BF00766217

    Content type: Original Article

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  14. Color measurements were made for sapwood specimens of 26 hardwood species. The densities of the specimens ranged from 258.5 to 945.6kg/m3. The colorimetric values and densities were compared among the species. Th...

    Authors: Yoshihiko Nishino, Gérard Janin, Yuji Yainada and Daisuke Kitano

    Citation: Journal of Wood Science 2000 46:BF00766215

    Content type: Original Article

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  15. 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

    Content type: Rapid Communication

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  16. 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

    Content type: Note

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  17. 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

    Content type: Note

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  18. 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

    Content type: Original Article

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  19. 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

    Content type: Original Article

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  20. 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

    Content type: Original Article

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  21. 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

    Content type: Original Article

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  22. 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

    Content type: Original Article

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  23. 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

    Content type: Original Article

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  24. 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

    Content type: Original Article

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  25. 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

    Content type: Note

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  26. 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

    Content type: Note

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  27. 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

    Content type: Note

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  28. 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

    Content type: Original Article

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  29. 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

    Content type: Original Article

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  30. 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

    Content type: Original Article

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  31. 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

    Content type: Original Article

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  32. 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

    Content type: Original Article

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  33. 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

    Content type: Original Article

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  34. 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

    Content type: Original Article

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  35. 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

    Content type: Original Article

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  36. 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

    Content type: Note

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