In terms of the length scale of structural features, material structure can be classified into macroscopic, mesoscopic, and microscopic structures. And the microscopic structure of materials can be ...

Background The Para athletics wheelchair-racing classification system employs best practice to ensure that classes comprise athletes whose impairments cause a comparable degree of activity limitation.

This Safety Guide provides recommendations and guidance on how to meet the requirements established in Specific Safety Requirements No. SSR-2/1 and in General Safety Requirements No. GSR Part 4 for ...