This paper presents the design, simulation and analysis of the distribution of lightning current and transient voltage in a 25 kV AC railway traction system. Consequently, the lightning protection ...

In order to realize high speed and high precision position control, satisfy the characteristic of following in the artillery servo system, and inhibit uncertain factors' influence to the controlled ...

If we were looking to buy a new filter today for our HVAC (heating, ventilation, and air conditioning) system, we’d opt for one rated MERV 13. These filters efficiently capture pollen, mold ...