2022 Journal Issues March 11, 2022 Regular Papers Volume 110, Issue 3 March 2022 Access the Full Issue Regular Papers Scanning the Issue A Survey of Deep Learning on Mobile Devices: Applications, Optimizations, Challenges, and Research Opportunities By T. Zhao et al. This article surveys the state-of-the-art literature that focuses on deep learning optimization for mobile applications and devices. Wearable Photoplethysmography for CardiovascularMonitoring By P. H. Charlton et al. This article summarizes the key literature on wearable photoplethysmography and points to future directions in this field. Synchronous Reluctance Machines: A Comprehensive Reviewand Technology Comparison By M. Murataliyev et al. This article reviews the promising synchronous reluctance machine technology, covering its background and evolution, as well as the latest developments in the field. Point of View Electrification, Decarbonization, and the Future Carbon-Free Grid: The Role of Energy Storage in the Electric Grid Infrastructure By R. Masiello, R. Fioravanti, B. Chalamala, and H. Passell Access the Full Issue Share: