The steering wheel in my 2017 Holden Captiva 2.4 shakes when stationary. When I put it in Park, it stops. I have had the engine mounts replaced. If I have the vehicle in Park with the foot brake ...

The Two On Flight 7 in January, SpaceX, said the vehicle suffered a harmonic response several times stronger than expected, creating additional stress on the vehicle’s propulsion system. That caused ...

of semiconductor lasers using optical feedback self-mixing interferometry (OFSMI), which works in weak optical feedback regime and where the external target is subject to simple harmonic vibration ...

1 School of Energy and Power Engineering, Beihang University, Beijing, China 2 Beijing Key Laboratory of Aero-Engine Structure and Strength, Beijing, China Periodic structures exhibit frequency band ...