3BruhwilerPA, Bogerd CP. The role of head and wind speedonforcedconvective heat through full-face motorcycle helmets tilt, hair loss A thermal manikinstudy[J]. Intenlational Jounal ofIndustrial Ergonomics, 2007, 34(12): 346-353.
4Firoz A, Aleksandar S, Simon W. A study of aerodynamic drag and thermal efficiency of a series of bicycle helmets[J]. Journal ofErgonomics, 2010, 23(5): 167-171.