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Freely suspended nanofibers, such as spider silk, harnessing their small diameter (sub‐micrometer) and spanning fiber morphology, behave as a nonresonating acoustic sensor. The associated sensing characteristics, departing from conventional resonant acoustic sensors, could be of tremendous interest for the development of high sensitivity, broadband audible sensors for applications in environmental...
Most acoustic sensors are resonant systems, thus the associated sensitivity bandwidth is narrow. In article number 2000581, Yan Yan Shery Huang and co‐workers fabricate a broad bandwidth acoustic sensor, inspired by the acoustic sensing mechanism of the spider silk, by dynamic near‐field electrospinning. Composed of freely suspended piezoelectric nanofibers, the self‐powered, transparent acoustic...
Synthesis of tungsten nanopowders was studied using milling of micrometric tungsten, then using the WO3–Mg thermitic reaction, using SHS (Self-propagating High-temperature Synthesis), milling induced chemical reaction (MICR), and MASHS (Mechanically Activated SHS). Reactions are studied by measuring temperature and pressure inside the milling jar (during MICR), or by analyzing the temperature profile...
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