Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) UEDA Hiroshi and TAKEI Masahiro and ZHAO Yao-Hua and LI Hui and OCHI Mitsuaki and TOMITA Yuji and HORII Kiyoshi,Pneumatic Transportation with Low Touching Pipe Wall Using Spiral Flow.,Aeronautical and Space Sciences Japan,00214663,THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES,1998,46,534,393-397,https://cir.nii.ac.jp/crid/1390001204479622528,https://doi.org/10.2322/jjsass1969.46.393