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A number of metal oxide semiconductors based photoelectrochemical processes have been utilized in environmental and energy related application. With increased urgency in the search for alternative sources of energy, photoelectrolysis of water for generation of hydrogen using solar radiation has attracted great attention. Several metal oxide semiconductors have been considered as promising materials...
This paper proposes an inexpensive solution towards the safe-keeping of the precious artifacts in museums, art galleries and private collections by employing an innovative non-contact based sensing mechanism clubbed with some of the previously used, well tested and efficient sensor-networks based on physical parameters. Such security standards are met by covertly deploying a low level electric field,...
A synergistic combination of nanostructure synthesis and surface engineering was used to enhance photoelectrochemical activity of TiO2 photoanodes. Titania (TiO2) nanotubular arrays were synthesized by electrochemical anodization of Ti thin foils. A combination of atmospheric-pressure helium plasma and nitrogen exposure was used to modify the surface properties of TiO2 nanotubes. The photocurrent...
The performance of Electrodynamic Screen (EDS) for surface cleaning was characterized with respect to the following operational parameters: (1) the efficiency of screens under both continuous and intermittent operations with different rates of dust deposition, (2) electrical power requirements for the screen operation with respect frequency of excitation and duration of the applied power needed to...
Dispersion of fine dry powders in the size range 1.0 to 10.0 mum in aerodynamic diameters requires a high energy dispersive force since the powders in this size range are very cohesive and their dispersion by vibrational, centrifugal or by aerodynamic force (using air currents) is inefficient in most cases. The adhesive force, that includes van der Waals, electrostatic, and liquid bridge forces, is,...
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