Recently, a large-scale production system of softwood-derived poly(ethylene glycol) (PEG)-modified glycol lignin (GL) was developed to produce high-quality lignin derivatives with substantially controlled chemical structures and attractive thermal properties. In this study, the further upgrading of ...

Educational changes in contents and characteristics associated with "forest products processing" were analyzed using the "Education Ministry Guidelines" (1947-2017) and school textbooks as a series of investigation regarding forestry and forest educational change. The analysis was conducted in...

Illegal logging is a significant problem in Indonesia, which is one of the few countries with a large forest area. In this study, we investigate the factors that affect harvesting and supply of illegal timber from Indonesia to China and Japan. Moreover, we investigate the factors that lead to the...

The yield percentage by tree species was estimated and the effect on the amount of wood biomass resources available was examined. In order to estimate the yield percentage of larch, cypress, cedar, and red pine by species, the results of logging operations in Nagano Prefecture were used to...

We investigated the process of log procurement by sawmills in Hokkaido after the operation of woody biomass power plants. We mailed a questionnaire to 137 sawmills July 2018, and received responses from 92 sawmills by August 2018. We analyzed responses from 84 companies that mainly processed...

We used a small chamber method to examine volatile organic compound (VOC) emissions such as α-pinene, β-pinene, and limonene, from three softwood species in Hokkaido, northern Japan. Tests were conducted for 4 weeks to investigate how the rate of VOC emission changed over time. All VOC emission...

Japan has promoted a policy to use lumber in various types of buildings since 2010. As cross-laminated timber (CLT) is one of the engineered timber products, an amount of CLT production has been increasing in Japan under this policy. The purpose of this study is to produce generic life cycle...

In this study, wood identification was performed on wooden Komainu, 14 samples from Shiga prefecture and 4 samples from Kyoto prefecture. Small samples were collected by curators or taken from the underside of the sculpture and cracks without harming the integrity of the sculptures. For wood...

The details of the lignocellulose deconstruction processes in the digestive systems of wood-feeding insects remain elusive. This study aimed to examine the biochemical conversion of lignocellulose in the digestive system of a wood-feeding anobiid beetle, Nicobium hirtum, one of the most important...

Wood in outdoor applications is exposed to various decay factors, of which fungi are the most important. some wood species are more resistant to fungal decay than others. forma viva in kostanjevica has been exhibiting sculptures made mainly of oak wood for 60 years. the oldest sculpture is the work ...