The inverse electromagnetic casting problem consists in looking for a suitable set of electric wires such that the electromagnetic field induced by an alternating current passing through them makes a given mass of liquid metal acquire a predefined shape.
Hydrometallurgy consists of such operations as leaching, in which metallic compounds are selectively dissolved from an ore by an aqueous solvent, and electrowinning, in which metallic ions are deposited onto an electrode by an electric current passed through the solution.
After being presintered at 1,000° 1,200° C (1,800° 2,200° F), tungsten bars of small diameter are sintered in a hydrogen atmosphere, with heat being provided by the direct-resistance method that is, by an electric current passed through the bar.
In contrast to voltage-driven liquid crystal or e-paper displays, which merely require the application of a controlled voltage to each pixel of the display, OLEDs are current-driven: the amount of light emitted by a pixel is controlled by the current passing through the OLED.
By measuring the current passing between a sharp microscopic silicon tip and a surface, the new microscope generated images of individual atoms.
The charging of an accumulator is a process of electrolysis; a chemical change is produced by the electric current passing through it.
The three curves at or above currents of 1 μA decrease parabolically after charging, indicating internal charging of unsaturated cells (the potential drop caused by current passing through resistive elements in an equipment circuit of the matrix [19]).
The incident – which led to a helium leak into the tunnel housing the superconductor ring – is thought to have been caused when a faulty electrical wire between two magnets was melted by the high current passing through it.
Over short time periods, indole widened action potentials by reducing the current passing through voltage-gated potassium channels.
The gas bubbles are presumably caused by the electrolysis of water (H2O) into oxygen (O2) and hydrogen gas (H2) by the electric current passing through the tissue [ 12].
