Open AccessAssessment of Ballast Flying in the National Railway Network of Ethiopia
Author(s) -
Mengistu Fikadu,
Henok F. Gebregziabher
Publication year - 2021
Publication title -
engineering
Language(s) - English
Resource type - Journals
eISSN - 1947-3931
pISSN - 1947-394X
DOI - 10.4236/eng.2021.137030
Subject(s) - ballast , discrete element method , track (disk drive) , gradation , marine engineering , engineering , track geometry , structural engineering , electrical engineering , mechanical engineering , computer science , mechanics , physics , computer vision