For more than a century, an important class of matter -- the amorphous solid -- has eluded scientists' ability to depict nature at the level of atoms and molecules. Until now. A study reports the first-ever determination of an amorphous solid's three-dimensional atomic structure.
Researchers propose a thermal power nanogenerator, called a thermoacoustically driven liquid-metal-based triboelectric nanogenerator, or TA-LM-TENG, which converts thermal energy into electrical energy.
Scientists report that, when driven out of equilibrium by magnetic fields, a universal Doppler effect limits the maximal spin current in magnetic insulators. This finding is a surprising analogy to what happens in superconductors driven by electric fields and could provide a fundamental design principle for future nano-devices with computing science and power applications.
Wearable flexible sensors have recently emerged as promising alternatives for human healthcare monitoring due to their lightweight and thin-film-based nature. However, few of these flexible sensor systems are applicable to neonatal monitoring, especially sleeping posture detection. Researchers now report a versatile laser-induced-graphene-based integrated sensor system, which can wirelessly monitor sleeping postures, respiration rate, and diaper wetness with feedback alarm functions.
