- Industry: Mining
- Number of terms: 33118
- Number of blossaries: 0
- Company Profile:
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 ...
A measure of surface brightness that is expressed as luminous flux per unit solid angle per unit projected area.
Industry:Mining
A measure of the ability of a clay to adsorb or exchange anions; usually expressed in milliequivalents or anions per 100 g of dry clay.
Industry:Mining
A measure of the ability of a rock to transmit a given fluid when the rock contains more than one fluid.
Industry:Mining
A measure of the amount of energy released by an explosive on detonation and its capacity to do useful work. Several methods of expressing explosive strength are used, but in most cases the figures are calculated from the deflection of a freely suspended ballistic mortar in which small explosive charges are fired.
Industry:Mining
A measure of the average particle size obtained by summing the products of the sizegrade midpoints times the frequency of particles in each class, and dividing by the total frequency.
Industry:Mining
A measure of the average particle size of clay and ceramic material, computed by summing the products of the reciprocal of the size-grade midpoints and the weight percentage of material in each class (expressed as a decimal part of the total frequency). The measure is based on the assumption that the surface areas of two powders are inversely proportional to their average particle sizes.
Industry:Mining
A measure of the average particle size of clay and ceramic material, computed by summing the products of the reciprocal of the size-grade midpoints and the weight percentage of material in each class (expressed as a decimal part of the total frequency). The measure is based on the assumption that the surface areas of two powders are inversely proportional to their average particle sizes.
Industry:Mining
A measure of the binding qualities of a coal and an indication of its caking or coking characteristics. Applicable with reference to the ability of fused coal to combine with an inert material such as sand. Compare: agglomerating value
Industry:Mining
A measure of the binding qualities of coal but restricted to describe the results of cokebutton tests in which no inert material is heated with the coal sample. Compare: agglutinating value
Industry:Mining
A measure of the cooling effect of the ambient air as determined by the kata thermometer. This instrument may be used wet or dry.
Industry:Mining
