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Processing and Properties of Steel Foam Sandwiches
Lefebvre Louis-Philippe,Gauthier Maxime,Baril Eric,Voizelle Benoit 한국분말야금학회 2006 한국분말야금학회 학술대회논문집 Vol.2006 No.1
Metallic foams have a combination of attractive properties such as high specific mechanical properties and good energy absorption characteristics. This paper presents the properties of steel foam sandwiches produced using powder metallurgy approach. Metallic powder, solid polymeric binder and a foaming agent are dry-mixed and molded into the desired shape. The molded powder mix is then heat-treated to foam, debind and sinter the material. The resulting material has an open cell structure with high porosity. The structure and properties of sandwiches specimens produced with the process are presented and discussed.
Anick R. Fournier,Shahrokh Khanizadeh,Louis Gauthier,Andre Gosselin,Martine Dorais 고려인삼학회 2003 Journal of Ginseng Research Vol.27 No.4
Vesicular-arbuscular mycorrhizae (VAM) fungi naturally colonise American ginseng roots and this relationship is highly beneficial to enhance plant productivity. Our goal was to determine the effect of adding two Glomus species (Glomus etuticatum, G. intraradices) on survival, photosynthetic capacity, growth, morphology and root ginsenoside content of one-year-old American ginseng plants grown in a broadleaf forest. While our study revealed that VAM inoculations significantly affected root morphology and Re ginsenoside content, the survival, photosynthetic capacity and root growth of American ginseng plants were not significantly influenced by VAM inoculations. Surface area and volume of rootlets were 16-25% higher for ginseng grown in VAM-inoculated soil compared to those grown in the control plots. Also, Reginsenoside content was 18 % higher in VAM-inoculated roots compared to controls.
Fournier, Anick R.,Khanizadeh, Shahrokh,Gauthier, Louis,Gosselin, Andre,Dorais, Martine The Korean Society of Ginseng 2003 Journal of Ginseng Research Vol.27 No.4
Vesicular-arbuscular mycorrhizae (VAM) fungi naturally colonise American ginseng roots and this relationship is highly beneficial to enhance plant productivity. Our goal was to determine the effect of adding two Glomus species (Glomus etuticatum, G. intraradices) on survival, photosynthetic capacity, growth, morphology and root ginsenoside content of one-year-old American ginseng plants grown in a broadleaf forest. While our study revealed that VAM inoculations significantly affected root morphology and Re ginsenoside content, the survival, photosynthetic capacity and root growth of American ginseng plants were not significantly influenced by VAM inoculations. Surface area and volume of rootlets were 16-25% higher for ginseng grown in VAM-inoculated soil compared to those grown in the control plots. Also, Re ginsenoside content was 18 % higher in YAM-inoculated roots compared to controls.