Beaufort scale monitoring Internet of things (IoT) Technology: general issues air breakdown artificial intelligence (AI) biosensors blue energy bulk ferroelectric photovoltaic effect (BPVE) cell modulation coupled effects electricity generation electromechanical conversion energy harvesting enhanced performance external mechanical system control ferroelectric materials harvesting human motion monitoring human–machine interface (HMI) hybridization lubricant liquid mechanical conversion mechanical lifespan mechanical transmission nanogenerators near-zero power network output enhancement piezoelectric nanogenerator piezoelectricity