The Wright brothers designed and constructed the world's first practical fixed-pitch propeller and developed the aerodynamic theory to calculate its performance during the process of creating their ...

1. Introduction Development of modular propeller blades for an autonomous underwater vehicle (AUV) with conventional methods are laborious, time-consuming, and result in excessive material wastage.

Ultra-dense networks (UDNs) constitute one of the most promising techniques for supporting the 5G mobile system. By deploying more small cells in a fixed area, the average distance between users and ...

Robert Policht tells firefighters who might be called on to rescue a citizen from a vertical shaft what's required on arrival at the incident—and days and weeks before an incident ...