- 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 ...
Tests carried out under site conditions to determine the best combination of (1) type of compaction equipment; (2) thickness of loose soil layer; (3) number of passes; and (4) moisture content (where variation is possible) in order to achieve the highest possible soil densities.
Industry:Mining
Tests in which high-frequency vibrations (inaudible to a human ear) are used to assist in determining wall thicknesses, pulp densities, etc.
Industry:Mining
Tests to determine index properties that in turn serve to identify the soil type and indicate its consistency.
Industry:Mining
Thallium silver nitrate that melts to a yellow liquid at 75 degrees C having a density of 4.6 g/cm<sub>3</sub>; can be diluted and used as a heavy liquid for mineral separation.
Industry:Mining
That at which the key machine in a series arranged for continuous ore processing is set to work. The control function may be for quantity passing per time, ratio of size reduction from feed to discharge, or for a necessary physical or chemical change of state of solid or liquid phase of the process.
Industry:Mining
That between upper (limiting) and lower (retaining) mesh sizes with reference to screened or classified material.
Industry:Mining
That branch of mechanics dealing with the relations of forces that produce equilibrium among material bodies.
Industry:Mining
That branch of metallurgy that deals with the broad field of metals other than iron, or alloys other than of iron base. Compare: ferrous metallurgy.
Industry:Mining
That branch of mineralogy devoted to the description of the physical and chemical properties of minerals.
Industry:Mining
That branch of mineralogy that comprises the measurement of the nature, composition, and classification of minerals by means of physical tests (e.g., density, hardness), chemical analyses both qualitative and quantitative, spectrochemical analyses including both absorption and emission spectra, electron probe microanalyses, autoradiography, thermal analyses, optical tests in both transmitted and reflected light, electron microscopy, diffraction of X-rays or electrons, and crystallographic analyses.
Industry:Mining
