- 行业: 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 ...
The force exerted on a unit pole is the field strength at that point.
Industry:Mining
The force per unit area or pressure against which a pump acts to force a fluid to flow through a pipeline, drill string, etc.; also, the pressure imposed on the fluid ejected from a pump.
Industry:Mining
The force required to overcome friction when a set of tubs or a run of wagons is hauled along a level track at uniform speed. For ordinary pit tubs the frictional force is about 40 lb/st (20 kg/t) load, and for mine cars or wagons it is about 28 lb/st (14 kg/t) load. This resistance is sometimes called traction.
Industry:Mining
The force, due to gravity, that resists the movement of a vehicle up a slope.
Industry:Mining
The form of mechanical energy a body possesses by virtue of its position. If a body is being dropped from a higher to a lower position, the body is losing potential energy, but if a body is being raised, then it gains potential energy.
Industry:Mining
The form of mechanical energy a body possesses by virtue of its velocity. The kinetic energy of a body, or the energy of motion, is the work done by it, or against it, in coming to rest. Water flowing through pipes or air flowing through a mine roadway possesses kinetic energy.
Industry:Mining
The form of regenerative furnace of the reverberatory type used in making steel by the Martin, Siemens, and Siemens-Martin processes.
Industry:Mining
The formal document by which the contractor and the authority mutually agree to comply with the requirements of the drawings, specification, schedule, conditions of tendering, and general conditions of contract and the tender.
Industry:Mining
The formal geochronologic unit next in order of magnitude below an eon, during which the rocks of the corresponding erathem were formed; e.g., the Paleozoic Era, the Mesozoic Era, and the Cenozoic Era. Each of these includes two or more periods, during each of which a system of rocks was formed. Long-recognized Precambrian Eras are the Archeozoic (older) and Proterozoic (younger).
Industry:Mining
