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Official Journal of the Japan Wood Research Society

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  1. This study confirmed that the loss tangent (or tangent loss, tan δ) obtained from the longitudinal vibration of a wood log increases with the apparent density difference between sapwood and heartwood, owing to mo...

    Authors: Toshiyuki Fukui, Yoshiyuki Yanase and Yoshihisa Fujii
    Citation: Journal of Wood Science 2023 69:38
  2. Although embedment properties are vital to timber engineering, the behavior and strain distributions in wood-based panels have not been clarified in detail. Our early studies suggested four possible causes of ...

    Authors: Ryutaro Sudo and Kenji Aoki
    Citation: Journal of Wood Science 2023 69:36
  3. In this work, a new type of structural sandwich panels made with laminated oil palm wood core and rubberwood-based oriented strand board (OSB)/plywood faces were introduced for energy-efficient wall applicatio...

    Authors: Sataporn Jantawee, Hyungsuk Lim, Minghao Li, Jung-Kwon Oh, Zoltan Pasztory, Heejin Cho and Suthon Srivaro
    Citation: Journal of Wood Science 2023 69:35
  4. This study aimed to investigate the relationship between moisture dynamics of sorbitol and citric acid (SorCA) modified wood and its biological durability. Specifically, the research aimed to determine the che...

    Authors: Katarzyna Kurkowiak, Lukas Emmerich and Holger Militz
    Citation: Journal of Wood Science 2023 69:34
  5. Cross-laminated timber (CLT) is a promising construction material. When CLT is used for horizontal applications, shear stress occurs in the out-of-plane direction and can fracture the transverse layers owing t...

    Authors: Yasuhiro Kawaai, Ryuya Takanashi, Wataru Ishihara, Yoshinori Ohashi, Kei Sawata and Takanobu Sasaki
    Citation: Journal of Wood Science 2023 69:33
  6. The moisture contents of sugi (Cryptomeria japonica), todomatsu (Abies sachalinensis) and hinoki (Chamaecyparis obtusa) logs were estimated using a method of moisture content estimation proposed in our previous s...

    Authors: Toshiyuki Fukui, Yoshiyuki Yanase and Yoshihisa Fujii
    Citation: Journal of Wood Science 2023 69:32
  7. Inspired by biological materials, the self-shaping wood composites induced by relative humidity (RH) have been investigated over the last decade. In this study, a wood bilayer was fabricated by assembling two ...

    Authors: Hui Peng, Zhiting Liu, Jianyi Zhu, Jiali Jiang, Jianxiong Lyu and Tianyi Zhan
    Citation: Journal of Wood Science 2023 69:29
  8. Urushi, an oriental lacquer, is sensitive to light and easily deteriorates upon light exposure, leading to the fading and loss of gloss of its coatings. In this study, we attempted to improve the lightfastness...

    Authors: Takao Tsuchiya, Chieko Narita, Kazushi Yamada, Adrian Moreno, Mika H. Sipponen, Hitomi Tsuda and Yoko Okahisa
    Citation: Journal of Wood Science 2023 69:28
  9. The old Ginkgo biloba L. trees often develop cylindrical woody structures that grow downward from the underside of the large branches near the trunks. This structure is traditionally called “chi-chi” (a breast) i...

    Authors: Seiichi Higuchi, Dan Aoki, Yasuyuki Matsushita, Masato Yoshida, Sachie Yagami and Kazuhiko Fukushima
    Citation: Journal of Wood Science 2023 69:27
  10. The stress relaxation behavior and cell wall microstructure of sugi were evaluated after thermal modification. Stress relaxation is observed and has a broad relaxation spectrum, implying various relaxation mec...

    Authors: Koji Murata, Mayumi Utsumi, Tomoya Hirata and Masashi Nakamura
    Citation: Journal of Wood Science 2023 69:25
  11. Plant peroxidases are important for several processes, such as defense against pathogens, and auxin metabolism. In this study, we report the active production and secretion of plant peroxidase and mutated enzy...

    Authors: Hinako Ishikura, Yuka Konishi, Jun Miura, Moeka Dohi and Shinya Kawai
    Citation: Journal of Wood Science 2023 69:24
  12. The objective of the study is to evaluate the properties of the plywood made from rubberwood veneers thermally treated at various temperatures. Rotary-peeled rubberwood veneers were thermally treated at 160, 1...

    Authors: Aujchariya Chotikhun, Jitralada Kittijaruwattana, Seng Hua Lee, Emilia-Adela Salca, Wa Ode Muliastuty Arsyad, Yusuf Sudo Hadi, Trairat Neimsuwan and Salim Hiziroglu
    Citation: Journal of Wood Science 2023 69:23
  13. To predict the mechanical properties of wood in the transverse direction, this study used machine learning to extract the anatomical features of wood from cross-sectional stereograms. Specimens with different ...

    Authors: Shuoye Chen, Rei Shiina, Kazushi Nakai, Tatsuya Awano, Arata Yoshinaga and Junji Sugiyama
    Citation: Journal of Wood Science 2023 69:22
  14. Phoebe zhennan and Phoebe bournei are favored for their fine-grain, insect resistance, special fragrance, not easily cracked and deformed, which had been widely used in furniture and construction. Wood authentici...

    Authors: Zhenan Chen, Xiaoming Xue, Ruoyi Cheng, Haoqi Wu, Handng Gao and Zexun Gao
    Citation: Journal of Wood Science 2023 69:21
  15. Quinacridone, a π-conjugated planar molecule, and common red pigment in industrial and painting applications, easily aggregates to form large clusters of pigment particles, resulting in a reduction in color st...

    Authors: Yasuko Saito, Keita Sakakibara, Yuki Tanaka, Naoya Hontama and Takashi Endo
    Citation: Journal of Wood Science 2023 69:20
  16. Charring of timber structural elements in fire is one of the most fundamental phenomena that affect the fire resistance of these elements. For an accurate and safe design of structural fire resistance, it is i...

    Authors: Robert Pečenko, Tomaž Hozjan and Sabina Huč
    Citation: Journal of Wood Science 2023 69:19
  17. Embedment properties are vital to timber structural designs, and many types of wood-based structural panels have been developed for diverse uses. Comprehensive and systematic studies regarding the embedment pr...

    Authors: Ryutaro Sudo, Kenji Aoki and Masahiro Inayama
    Citation: Journal of Wood Science 2023 69:18
  18. Large-diameter keyaki (Zelkova serrata Makino) logs have long been used in Japan as high-quality material especially for traditional construction and furniture. However, unlike other major wood species in Japan, ...

    Authors: Naohisa Kameyama, Miyuki Matsuo-Ueda, Shuoye Chen, Zhuoting Jiang, Tatsuya Ichiyanagi, Masato Yoshida and Hiroyuki Yamamoto
    Citation: Journal of Wood Science 2023 69:16
  19. Odor environments in living spaces can influence human physiological and psychological states. To elucidate the effect of volatile organic compounds (VOCs) of wood in living spaces on the modulations of cognit...

    Authors: Taisuke Nakashima, Minkai Sun, Akiyoshi Honden, Yuri Yoshimura, Toshinori Nakagawa, Hiroya Ishikawa, Jun Nagano, Yuki Yamada, Tsuyoshi Okamoto, Yuichiro Watanabe, Shinji Yasunari, Koichiro Ohnuki, Noboru Fujimoto and Kuniyoshi Shimizu
    Citation: Journal of Wood Science 2023 69:15
  20. Rolling shear, an inherent property of cross-laminated timber (CLT) due to the weak shear strength of cross layers, is always the determinant of load-bearing capacity for short-span CLT members subjected to ou...

    Authors: Zirui Huang, Lingyun Jiang, Chun Ni and Zhongfan Chen
    Citation: Journal of Wood Science 2023 69:14
  21. Despite bamboo slivers having long been used to manufacture bamboo weaving products, the flexibility is still well below satisfactory, especially for those split from inner layer of bamboo culm. Here, a facile...

    Authors: Jieyu Wu, Zong Yixiu, Tuhua Zhong, Wenfu Zhang and Hong Chen
    Citation: Journal of Wood Science 2023 69:13
  22. Cationic cell-wall-bound peroxidase (CWPO-C) from Populus alba is the only Class III peroxidase that has been shown to be able to oxidize high molecular weight lignin polymers from sinapyl alcohol and previously,...

    Authors: Diego Alonso Yoshikay-Benitez, Kaori Ohira, Kasturi Banerjee, Koki Fujita, Jun Shigeto and Yuji Tsutsumi
    Citation: Journal of Wood Science 2023 69:12
  23. The polymer/wood functional products may not be true nanocomposites due to the poor permeability of non-polar monomers into the hydrophilic wood cell wall. In this paper, methyl methacrylate (MMA) chosen as th...

    Authors: Haiyang Zhang, Fucheng Xu, Linlin Xu and Chaowei Zheng
    Citation: Journal of Wood Science 2023 69:10
  24. To test whether radial variation of wood specific gravity (WSG) is controlled by tree age or tree size in teak (Tectona grandis L.f) plantation trees, opposing different-length pith-to-bark strips which represent...

    Authors: Jerry Oppong Adutwum, Hiroki Sakagami, Shinya Koga and Junji Matsumura
    Citation: Journal of Wood Science 2023 69:9
  25. Charcoal samples prepared from wood impregnated with Fe3+ were characterized using Raman spectroscopy to investigate ordered structures consisting of sp2-carbon atoms. The iron-loaded charcoal samples were synthe...

    Authors: Takayuki Yamagishi, Sakae Shibutani and Shigeru Yamauchi
    Citation: Journal of Wood Science 2023 69:8
  26. Quantifying carbon dioxide (CO2) emissions from China’s wood and bamboo processing industry is associated with China’s emissions reduction targets, as well as mitigating global climate change. This study employed...

    Authors: Wan-Li Lao, Liang Chang and Xin-Fang Duan
    Citation: Journal of Wood Science 2023 69:6
  27. Long timber columns are widely used in traditional timber structures worldwide; however, many of them possess bearing capacity issues and have to be strengthened. The current study aims to develop the novel Hy...

    Authors: Haoyu Wang, Qing Chun, Chengwen Zhang, Shiyu Ma, Guang Cao and Qingchong Dong
    Citation: Journal of Wood Science 2023 69:5
  28. The effects of aging on wood properties are usually evaluated based on cambial age, with the assumption that the properties do not change once the wood has formed. This study examined changes in wood propertie...

    Authors: Takaaki Fujimoto
    Citation: Journal of Wood Science 2023 69:3
  29. We investigated the feeding behavior of larvae of the wood-destroying beetle Nicobium hirtum (Coleoptera: Anobiidae), an important wood pest in Japan, to determine the effects of dietary variation on lignocellulo...

    Authors: Ni Putu Ratna Ayu Krishanti, Yuki Tobimatsu, Osama Ahmed Afifi, Didi Tarmadi, Setiawan Khoirul Himmi, Toshiaki Umezawa, Wakako Ohmura and Tsuyoshi Yoshimura
    Citation: Journal of Wood Science 2023 69:2
  30. This study investigated the feature importance of near-infrared spectra from random forest regression models constructed to predict the carbonization characteristics of hydrochars produced by hydrothermal carb...

    Authors: Sung-Wook Hwang, Hyunwoo Chung, Taekyeong Lee, Jungkyu Kim, YunJin Kim, Jong-Chan Kim, Hyo Won Kwak, In-Gyu Choi and Hwanmyeong Yeo
    Citation: Journal of Wood Science 2023 69:1
  31. A kris is a traditional dagger that originated in Indonesia. A kris is distinguished by its asymmetrical blade, which has layers of different metals bonded on its surface. Wood is the main material used to mak...

    Authors: Hairi Cipta, Widyanto Dwi Nugroho, Suyako Tazuru and Junji Sugiyama
    Citation: Journal of Wood Science 2022 68:65
  32. In this study, with data obtained from a particleboard factory, screw withdrawal strength (SWS) values of particleboards were estimated using artificial neural networks (ANNs). Predictive control charts were a...

    Authors: Rıfat Kurt
    Citation: Journal of Wood Science 2022 68:64
  33. Japanese cedar, Cryptomeria japonica, is an evergreen conifer native to Japan and is often used as a building material. The humidity control properties of wood are known, but there have been few detailed analyses...

    Authors: Noriko Ouji-Sageshima, Masahiro Kitabatake, Satoki Fushimi, Satoshi Suzuki, Yuzu Fukui, Ryutaro Furukawa and Toshihiro Ito
    Citation: Journal of Wood Science 2022 68:63
  34. To study the propagation characteristics of acoustic emission signals in Zelkova schneideriana under different boundary conditions, three types of boundary conditions were generated by applying aluminum plates an...

    Authors: Yue Zhao, Ming Li, Saiyin Fang, Shaochun Zhang, Changlin Huang, Tingting Deng, Feilong Mao, Gezhou Qin and Daigen Zhu
    Citation: Journal of Wood Science 2022 68:62
  35. Particle gluing operating parameters in particleboard (PB) production have an important influence on the mechanical properties of PBs. This study developed a multi-objective optimization model based on support...

    Authors: Beilong Zhang, Jun Hua, Liping Cai, Yunbo Gao and Yilin Li
    Citation: Journal of Wood Science 2022 68:61
  36. Progress in the condensation of lignin is believed to interfere with delignification in alkaline pulping processes without any clear evidence, which motivated us to revisit it quantitatively. This study is the...

    Authors: Toshihiro Komatsu and Tomoya Yokoyama
    Citation: Journal of Wood Science 2022 68:60
  37. This study investigated using waste mushroom beds as insulation material and applied compression-drying to eliminate the coarse voids that are unfavorable for insulation. The relationship between air-dry densi...

    Authors: Zhuoqiu Jiang and Noboru Sekino
    Citation: Journal of Wood Science 2022 68:59
  38. The leaves and twigs of Lindera spp. have long been used as a herbal medicine and toothpicks in Japan. However, little is known about individual variations in the extractives of these species, because many previo...

    Authors: Norihisa Kusumoto, Takuya Morikawa, Koh Hashida, Naoyuki Matsui and Tatsuro Ohira
    Citation: Journal of Wood Science 2022 68:58
  39. The current stumpage price in harvesting of a 50-year-old sugi (Japanese cedar, Cryptomeria japonica) plantation is not enough to motivate forest owners to reforest. Therefore, it is vital to reduce the cost for ...

    Authors: Yoshio Kijidani, Taku Tsuyama, Hisato Oda, Ryoko Hirata and Satoshi Ito
    Citation: Journal of Wood Science 2022 68:57
  40. Trees develop wood grain more or less parallel to the tree axis as they grow laterally. However, many tree species also develop interlocked grain that is expressed as a change in the wood grain orientation, pe...

    Authors: Hairi Cipta, Kayoko Kobayashi, Shuoye Chen and Junji Sugiyama
    Citation: Journal of Wood Science 2022 68:56
  41. Four kinds of glued laminated timber were produced (i.e., one with a glued edge-joint and the other three with nonglued edge joints) in the lamina at different positions toward the depth direction. Shear tests...

    Authors: Hirofumi Ido, Atsushi Miyatake, Yasushi Hiramatsu and Kohta Miyamoto
    Citation: Journal of Wood Science 2022 68:55

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