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Kimio Kanayama,Hiromu Baba,Shinya Koga,Tomoyoshi Sugawara 한국물리학회 2010 Current Applied Physics Vol.10 No.2
Looking through the past research works again, a new effect created in combination of a few old techniques was noticed. One main technology; a transparent hot house for passive solar radiation collection,and two elementary techniques; a carbon fiber sheet (CF-sheet) of excellent absorber for solar radiation incidence and an insulated cylinder for passive exhaustion of moist air inside of the house were unified altogether, and so a fully passive solar lumber drying apparatus could be established practically as a soft technology of lumber drying.
Case Study on the Changes in the Physical Environment in Forest Healing Spaces
Kim, Geonwoo,Park, Bum-Jin,Yeon, Poung-Sik,Lee, Sanggoo,Joung, Dawou,Park, Choonghee,Koga, Shinya FACULTY OF AGRIC PUBLICATIONS-KYUSHU UNIV 2016 Journal of the Faculty of Agriculture, Kyushu Univ Vol. No.
<P>This study was conducted to investigate changes in the physical environment in forest healing spaces by examining each of two tree species in a space within the Kasuya Research Forest, Kyushu University. At the study site, culmination and sunset showed high TNVOCs, low concentrations of particulate matter, and low PPD. Of the NVOCs, camphor was detected with the highest concentrations, 0.359 ng/m(3) and 0.142 ng/m(3), in C. camphora and M. thunbergii, respectively. Coniferous trees are generally used when creating an environment for healing purposes, as they are known to emit a large amount of NVOCs. However, according to our results, deciduous trees also emit NVOCs of sufficient concentrations. Therefore, if forest healing spaces are created with the appropriate components, it can have effective results.</P>