Jianhua Chen

Nov 29, 2024 | nature.com | Jianhua Chen

AbstractImage acquisition and transmission in wireless sensor networks (WSN) are core issues for some resource-deficient multimedia sensing applications. Reducing sampling rates and data transmission lowers sensor node costs and energy, addressing communication bottlenecks. Block compressed sampling (BCS) can meet the above requirements. For BCS, the sparsity or smoothness of the block signal is a crucial parameter, which determines the setting range of the sampling rate.

Oct 22, 2024 | mdpi.com | Zilong Wang |Birong Huang |Bingyang Zhou |Jianhua Chen

1. IntroductionSingle-phase grounding is a common fault in distribution networks, and small current grounding faults are difficult to detect promptly because they do not disrupt the continuous supply of electricity. However, if the distribution network is in a faulty state for a long time, it may evolve from a single-phase grounding fault to an interphase short-circuit fault, resulting in power safety accidents [1].