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U.S. Department of the Air Force Air Force Instruction 48–123 Medical Examinations and Standards (2009) (No. AFI 48-123), Washington, D.C Google Scholar U.S. Department of the Army, 1990 U.S. Department of the Army Use of Volunteers as Subjects of Research U.S. Government Printing ...
The tests were carried out in conditions with and without a lubricant, the influence of which was considered independently. During the tribological tests, the values of the friction coefficient and wear were measured for three different values of normal force of 0.3, 0.6, and 0.9 N and sliding...