Switchable radiative cooling and solar heating for sustainable thermal management.

Radiative thermal management technologies that utilize thermal radiation from nano/microstructure for cooling and heating have gained significant attention in sustainable energy research. Passive radiative cooling and solar heating operate continuously, which may lead to additional heating or cooling energy consumption due to undesired cooling or heating during cold nighttime/winters or hot daytime/summers. To overcome the limitation, recent studies have focused on developing radiative thermal management technologies that can toggle radiative cooling on and off or possess switchable dual cooling and heating modes to realize sustainable and efficient thermal management.

Machine-learned wearable sensors for real-time hand-motion recognition: toward practical applications.

Soft electromechanical sensors have led to a new paradigm of electronic devices for novel motion-based wearable applications in our daily lives. However, the vast amount of random and unidentified signals generated by complex body motions has hindered the precise recognition and practical application of this technology. Recent advancements in artificial-intelligence technology have enabled significant strides in extracting features from massive and intricate data sets, thereby presenting a breakthrough in utilizing wearable sensors for practical applications.

Pebax 2533/Graphene Oxide Nanocomposite Membranes for Carbon Capture.

In this work, the behavior of new GO-based mixed matrix membranes was tested in view of their use as CO-selective membrane in post combustion carbon capture applications. In particular, the new materials were obtained by mixing of Pebax 2533 copolymer with different types of graphene oxide (GO). Pebax 2533 has indeed lower selectivity, but higher permeability than Pebax 1657, which is more commonly used for membranes, and it could therefore benefit from the addition of GO, which is endowed with very high selectivity of CO with respect to nitrogen.