- Industry: Mining
- Number of terms: 33118
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The U.S. Bureau of Mines (USBM) was the primary United States Government agency conducting scientific research and disseminating information on the extraction, processing, use, and conservation of mineral resources.
Founded on May 16, 1910, through the Organic Act (Public Law 179), USBM's missions ...
In India, soil from 6 to 10 ft (1.8 to 3.0 m) in thickness overlying the coal measures, which, in dry weather, shrinks and produces mud cracks.
Industry:Mining
In information processing, logical switching information processing elements that utilize the variability of the transition to superconductivity as a function of magnetic field strength.
Industry:Mining
In ion exchange, relative strength of attachment of competing ions for anchorage on a resin.
Industry:Mining
In ion exchange, sorption onto resins of metallic ions from a pregnant solution in loading cycle.
Industry:Mining
In ion exchange, the diffusion-layer supposed to surround a bead of resin. This static film is reduced, or diffusion through it is accelerated, if agitation of the ambient liquor is increased, if temperature is raised, or if concentration of ions in solution is made greater.
Industry:Mining
In iron puddling, the series of two pairs of rolls by means of which the slab or bloom is converted into bars.
Industry:Mining
In isometric minerals, a cleavage parallel to the faces of a rhombic dodecahedron 110 , e.g., sphalerite.
Industry:Mining
In its earlier form, a mineral separator to which the material was fed by a vibrating conveyor and passed through successive zones of magnetic influence. The zones were covered by the rims of rotating disks, which became magnetized, carried the particles having magnetic susceptibility out of the fields, were demagnetized, and dropped the concentrate beyond the edge of the belt. Now made with rollers having an induced magnetism; dried, finely crushed ore passed over the rollers in a thin stream from which particles attracted by the magnet are drawn out.
Industry:Mining
In its simplest form this structure consists of a fissure lined with crystals on each side, having their bases on the walls and their apexes directed toward the center. In some cases the fissure is thus altogether filled up with two sets of crystals meeting in the center.
Industry:Mining
