Studies on Elimination of Electrification

Contact electrification studies using atomic force microscope techniques

Contact electrification measurements using atomic force microscopy techniques were performed using micrometer-sized spheres made of polystyrene and flat substrates of either freshly cleaved, highly oriented pyrolytic graphite ~HOPG! or a 0.2-mm-thick Au@111# film grown on mica. The polystyrene/HOPG interaction exhibited significant electrostatic charging when compared to the polystyrene/Au syst...

Rural Electrification

postnatal studies of bats (pipistrellus kuhlii and miniopterus schreibersii) & histomorphology and histochemistry studies of organs and diseases of (neurergus microspilotus and n. kaiseri)

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

Electrons on dielectrics and contact electrification

Surfaces of dielectrics (insulators) often become charged following contact with metals, semiconductors, and dielectrics with or without rubbing. The mechanism and participants in the charge transfer (electrons or ions), although widely investigated, are still controversial. Whereas the identity of the charge carrier cannot be distinguished by electrostatic measurements, we have recently found ...

Frictional Electrification on Polymeric Flat Surfaces

The electrostatic charge on nylon, polypropylene (PP), and polytetrafluoroethylene (PTFE) after rubbing against stainless steel and against each other was examined using a newly developed rubbing device with automated features. It is observed that the charge generated on PTFE and PP increases as the contact force increases, while the charge generated on nylon is not affected by the contact forc...