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United States Bureau of Mines
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 water-vapor content of the atmosphere. The unmodified term often signifies relative humidity.
Industry:Mining
The wave or flame that passes through a uniform gaseous mixture with a permanent maximum velocity. The rate of the explosion wave is a definite physical constant for each mixture. The explosion wave travels with the velocity of sound in the burning gas, which itself is moving rapidly forward en masse in the same direction, so that the explosion wave is propagated far more rapidly than sound travels in the unburned gas.
Industry:Mining
The wave pattern established when waves are reflected by a barrier so that the crests and troughs occur alternately in the same places with water particle motion limited to vertical movement, while a quarter wavelength away the particle motion is horizontal (back and forth). This is a standing wave phenomenon.
Industry:Mining
The weakening or failure of a material after many repetitions of a stress that of itself is not strong enough to cause failure.
Industry:Mining
The web of a steel beam consisting of a rolled section or a plate as distinct from a lattice.
Industry:Mining
The wedging of a loaded wagon or horse against the top of an underground passage.
Industry:Mining
The weight attached to a shaft plumbline for the purpose of lowering the line down the shaft.
Industry:Mining
The weight equal to 21 hundredweight of 112 lb each, or 2,352 lb (1,066.87 kg).
Industry:Mining
The weight of a specified material per foot of belt length that a belt conveyor will transport.
Industry:Mining
The weight of a unit volume of a dry sample of soil, after the latter has been heated at a temperature of 103 degrees C.
Industry:Mining
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