Triboelectric nanogenerators (TENGs), a nascent field in energy conversion technologies,
provide a novel approach to producing electrical energy from mechanical motion in the …

Calculations of the impact of friction and wear on energy consumption, economic
expenditure, and CO 2 emissions are presented on a global scale. This impact study covers …

Long-term observation of the triboelectric effect has not only proved the feasibility of many
novel and useful tribo-devices (eg, triboelectric nanogenerators), but also constantly …

The electrification of volcanic ash plumes and the occurrence of volcanic lightning are now
known to be common phenomena during explosive volcanic eruptions. This knowledge …

Observations of flowing granular matter have suggested that same-material tribocharging
depends on particle size, typically rendering large grains positive and small ones negative …

Raikoke, a small, unmonitored volcano in the Kuril Islands, erupted in June 2019. We
integrate data from satellites (including Sentinel-2, TROPOMI, MODIS, Himawari-8), the …

Atmospheric transport and suspension of dust frequently brings electrification, which may be
substantial. Electric fields of 10 kV m− 1 to 100 kV m− 1 have been observed at the surface …

Upon the release of natural or anthropogenic radionuclides into the atmosphere, dispersion
models are relied on to predict their spread range and fallout field. The accurate prediction …

Lightning is often observed during explosive volcanic eruptions, and the charging processes
associated with these displays have been attributed to several mechanisms. In this work we …

A major hazard to jet engines posed by volcanic ash is linked to the wetting and spreading
of molten ash droplets on engine component surfaces. Here, using the sessile drop method …