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Variation of the tree ring micro-hardness demonstrated on spruce wood
wood tree ring micro-hardness penetration strength
2015/2/2
Micro-hardness was used for the study of wood structure (Norway spruce) in the line perpendicular to tree rings (radial surface). The steel indentor 0.25 mm in diameter with flat head was used for thi...
Relationship between Stand Structure of a Secondary Forest on the Keihanna Hills and Soil Hardness
cluster analysis Osaka group Pinus densiflora Quercus serrata soil hardness
2009/8/27
The stand structure of a secondary forest established on the Osaka group and related factors were analyzed. Twenty-seven quadrats were set in the forest, and every tree in those quadrats was measured....
Effects of Bleaching Process on Hardness and Glossiness of Pine Wood（Pinus Sylvestris L.）Exposed to Outdoor Conditions
Weathering bleaching hardness gloss
2009/1/14
This study was performed to determine the effects of exposure to outdoor condition and of the bleaching process after exposure outdoor conditions after the bleaching process on hardness, both parallel...