- 行业: 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 ...
The phenomenon of glowing when a substance is stimulated by heat rays that lie beyond the red end of the visible spectrum.
Industry:Mining
The phenomenon of holding finely divided particles of a liquid in suspension within the body of another liquid. Banka method.
Industry:Mining
The phenomenon of sound being the same in all parts of a given water column.
Industry:Mining
The phenomenon of the intimate occurring together of certain chemical elements in nature because of their similar chemical properties, as, for example, the group of the lanthanides, zirconium-hafnium, niobium-tantalum, etc.
Industry:Mining
The phenomenon sometimes exhibited by refractories containing chrome ore, when exposed to iron oxide at high temperature, of having the exposed face swell and grow until it breaks away from the brick mass.
Industry:Mining
The phenomenon that results when waves of the same or nearly the same frequency are superposed, characterized by a spatial or temporal distribution of amplitude of some specified characteristic differing from that of the individual superposed waves.
Industry:Mining
The photography of images produced on a fluorescent screen by X-rays. Varieties include photoradiography, photoroentgenography, miniature radiography.
Industry:Mining
The phrase "held in common" means a claim whereof there are more owners of a claim than one; the use of the words "claims held in common," on which work done upon one of such claims shall be sufficient, means that there must be more than one claim so held, to make a case where work upon one of them shall answer the statutory requirements as to all of them.
Industry:Mining
The physical aggregate of mineral occurrences in a region above some lower cutoff.
Industry:Mining
The physical and chemical properties of the elements depend on the structure of their atoms and are for the most part periodic functions of the atomic number.
Industry:Mining
