Apple’s rumored C2 modem may allow future iPhones to switch more seamlessly to satellite service when cellular coverage is ...
Hypersonic flight could one day make long-haul travel as quick as a short movie. Researchers are testing how turbulence behaves at extreme speeds, a critical hurdle for designing these aircraft. Their ...
Abstract: The magnetic levitation turbo molecular pump (MLTMP) is driven by a high-speed permanent magnet synchronous motor to create a high-vacuum environment for semiconductor manufacturing and ...
Abstract: Sensorless zero-speed control of permanent magnet synchronous motors using high-frequency signal injection introduces acoustic noise and vibration, while conventional model-based observers ...
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