An Osaka Metropolitan University research team has revealed that to use the aquifer thermal energy storage (ATES) system safely over the long term it is crucial to investigate the groundwater quality before operating the system and to continuously monitor the water quality.

A study led by the School of Engineering of the Hong Kong University of Science and Technology (HKUST) has developed a groundbreaking thermal-electric aerosol (TEA) printer that significantly accelerates piezoelectric biofilm manufacturing. Achieving a speed that is two orders of magnitude faster than existing technologies, this innovation paves the way for the industrial-scale production of biocompatible and biodegradable electronics, with medical applications such as ultrasonic energy harvesters for postoperative cardiac patients.