Organizers of Saturday's "No Kings" demonstrations said millions marched in hundreds of events Huge, boisterous crowds marched in Philadelphia, New York, Denver, Chicago, Houston and Los Angeles ...

Achieving non-destructive testing of liquid-filled pipelines is crucial for ensuring pipeline safety. Liquid-filled pipelines exhibit more complex propagation characteristics. This paper presents a ...

The research and application of hybrid HVDC transmission systems are still in their infancy, In order to solve the problem that backup protection is affected by distributed capacitance and transition ...