Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KOBAYASHI Saburo and ISHIGAKI Masahiro and INABA Shin-ichi,Monitoring Technique of Solid Flow State in Pneumatic Conveying of Powder Materials,Tetsu-to-Hagane,00211575,The Iron and Steel Institute of Japan,1993,79,10,1157-1163,https://cir.nii.ac.jp/crid/1390282680160496768,https://doi.org/10.2355/tetsutohagane1955.79.10_1157