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Miyuki Matsuo
Nagoya University
Composite materialChemistryViscoelasticityMaterials scienceCellulose
35Publications
8H-index
239Citations
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Publications 36
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#1K. C. Sujan (Akita Prefectural University)H-Index: 3
#2Hiroyuki Yamamoto (Nagoya University)H-Index: 33
Last. Keiichi Asaka (Nagoya University)
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The delayed recovery of the longitudinal length in biomechanically pre-stressed wood, specifically tension wood with a conspicuous gelatinous layer in the cell wall structure, was generally induced by hygrothermal treatment. However, hygrothermal treatment should not be the sole method to induce delayed recovery in tension wood. In order to broaden our understanding of the mechanism underlying delayed recovery, tension wood of Quercus serrata was treated by drying and subsequent rewetting over m...
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#1Marie Capron (European Synchrotron Radiation Facility)
Last. Hiroyuki YamamotoH-Index: 33
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Wood production on stem by deposit of concentric layers on its periphery are going along with the setting up of growth stress. Growth stress has two origins: (1) loading due to weight of the structure is applied progressively when the tree is growing; (2) cell maturation, which happened at the end of the deposit of a new layer, causes an expansion, called maturation deformation, which can’t happen freely due to the previous layer and lead to the creation of initial growth stress [1]. The growth ...
#1Ryo HisamochiH-Index: 1
#2Yumiko WatanabeH-Index: 6
Last. Takahiro TagamiH-Index: 30
view all 10 authors...
#1Ryo HisamochiH-Index: 1
#2Yumiko WatanabeH-Index: 6
Last. Takahiro TagamiH-Index: 30
view all 10 authors...
1 CitationsSource
Scanning Probe Microscopes (SPMs) observe specimen surfaces with probes by detecting the physical amount of a material between the cantilever and the surface. SPMs have a high resolution and can measure mechanical characteristics such as stiffness, adsorptive properties, and viscoelasticity. These features make it easy to identify the surface structure of complex materials; therefore, the use of SPMs has increased in recent years. Wood cell walls are primarily composed of cellulose, hemicellulos...
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#1Miyuki Matsuo (Nagoya University)H-Index: 8
#2Ginji Niimi (Nagoya University)H-Index: 1
Last. Hiroyuki Yamamoto (Nagoya University)H-Index: 33
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Hygrothermal recovery (HTR), the dimensional changes in wood induced by hygrothermal treatment, was investigated using both compression and normal wood of sugi (Cryptomeria japonica). The elastic released strain of growth stress was measured on living tree surfaces; subsequently, the specimens were taken from the same position to measure HTR. HTR was measured as dimensional changes due to treatment at 20, 40, 60, 80, and 100 °C in hot water ranging from 200 min to 177 days. The intensity of HTR ...
4 CitationsSource
#1Miyuki Matsuo (Nagoya University)H-Index: 8
#2Katsuya MitsuiH-Index: 3
Last. Hiroyuki Yamamoto (Nagoya University)H-Index: 33
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Color changes of four softwood and seven hardwood species during hygrothermal treatment were compared among species and kinetically evaluated. Treatment temperature ranged from 70 to 120 °C, and the durations were 5–150 h. Generally, the \(L^{*}\) (lightness) decreased and the total color differences \((\Delta E_{\text{ab}}^{*})\) increased irrespective of the treatment temperature. \(a^{*}\) and \(b^{*}\) (redness and yellowness) values varied spuriously based on the wood species. Kinetic analy...
4 CitationsSource
#1Kaoru Endo (University of Tsukuba)H-Index: 1
#2Eiichi Obataya (University of Tsukuba)H-Index: 15
Last. Miyuki Matsuo (Nagoya University)H-Index: 8
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To clarify the effects of humidity during heating on the physical properties of hydrothermally treated wood, Sitka spruce wood was heated in an autoclave at 120 °C and different heating humidity (HRH), and their equilibrium moisture content (EMC), specific dynamic Young’s modulus (E′/ρ), and mechanical loss tangent (tanδ) were measured at 25 °C and 60 % RH prior to and after the hydrothermal treatment. Higher values of HRH resulted in greater loss in weight (WL) because of the acceleration of th...
16 CitationsSource
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