This work reports the synthesis of semiconductor selenium nanoparticles/micro-rods (Se-NP/MRs) using bio-fabrication approach and studies its photocatalytic activity under natural sunlight irradiation. Cabbage leaf extract was used as a reducing agent to fabricate Se-NP/MRs. X-ray diffraction patterns shown crystalline structure with crystallite size 28.17 nm, conferring planes hexagonal struct...

This study reports the characterisation of human dental enamel caries using synchrotron nanoscale correlative ptychography and spectroscopic mapping in combination with scanning electron microscopy. A lamella ̴2.4 µm thick was extracted from a carious region tooth focused ion beam-scanning microscopy transferred to two beamlines perform hard X-ray nano-fluorescence spectroscopy simultaneously di...

In this paper, the effect of ocean-land mixed propagation path on the lightning performance of grounding rods is investigated. This effect is focused on two problems. The first is extracting exact equivalent circuit of grounding rods in the presence of oceans. The equivalent circuit can be used in transient analysis of power systems in the neighboring oceans. In the second one, this effect on t...

An as-produced epoxy material reinforced with ZnO (nano)rods for outdoor use was produced the purpose of enclosing VHF/early UHF transceiving elements. Three different (nano)rod percentages were dispersed (0.1 wt%, 0.5 wt% and 2 wt%) in samples consequently exposed to an artificial weathering environment a total period 2880 h. SEM XRD characterizations followed by gravimetric, colorimetric diel...

Ranging from nano- to granular-scales, control of particle assembly can be achieved by limiting the available free space, for example by increasing the concentration of particles ("crowding") or through their restriction to 2D environments. It is unclear, however, if self-assembly principles governing thermally-equilibrated molecules can also apply to mechanically-excited macroscopic particles ...