K. Shrestha, Pukar Maharjan, T. Bhatta, S. Sharma, MT Rahman, S. Lee, Md Salauddin, SMS Rana, and Jae Y. Park
The prevailing energy harvester utilizes a convectional magnet that limits the output power due to the imperfect coupling of the flux linkage and the leakage of the magnetic fluxes away from the coil. Herein, a circular Halbach array magnet comprising the arc magnets is proposed as a high-performance rotational energy harvester for preventing flux leakage by concentrating the magnetic flux in a particular path. The Halbach magnet is made up of eight individual arc magnet segments that are kept apart by 1 mm to induce a fourfold increase in magnetic flux density over a conventional magnet. The proposed rotational energy harvester can deliver an exceptional 603.2 W m−3 power density, which is attributed to a three times increase in the power density. The harvested power is utilized to charge a 30 mAh battery for driving a complete IoT system for the development of self-powered wireless environmental monitoring systems. Furthermore, an intelligent system is designed using cutting-edge artificial intelligence (AI) technology which accounts for Mxene/P(VDF-TRFE)-based triboelectric sensor output data and considers different weather parameters to accord a high accuracy of 99% in wind speed prediction.
The human body continuously emits physiological and psychological information from head to toe. Wearable electronics capable of noninvasively and accurately digitizing this information without compromising user comfort or mobility have the potential to revo...
Maintaining clean and fresh pool water requires regular monitoring and treatment. However, the employed methods are manual, complex, and time-consuming. Herein, we proposed a self-sustainable autonomous smart pool monitoring system that can continuously mon...
In industry 4.0, continuous condition monitoring is essential to keep the system well maintained and stable. However, current monitoring systems demand periodic replacement/recharging of batteries. Herein, a compact vibration-driven intelligent power module...
The contactless triboelectric nanogenerator with the capability of touchless interactions has become extremely fascinating for applications in health care, remote security, and augmented reality. Herein, a Siloxene/Ecoflex nanocomposite-based high-performan...
The development of a highly sensitive pressure sensor with a wide linear range is an emerging technological goal in the area of electronic skin (e-skin). Several studies have focused on imitating tactile perception closer to natural skin, however, there rem...