common term
mine drainage
Mine Drainage
Mine drainage is water that is contaminated by mining activities. This can refer to the runoff from pits or dumps created during mining operations, or any other body of water that has been contaminated by substances such as heavy metals, sulfuric acid, and other toxic minerals.
Whe......
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Sophia
law of least resistance
The Minimum Drag Principle states that, within the limits of ideal flow conditions, the most effective surface geometry of an object moving through a fluid is the one that causes the least amount of surface drag. This principle affects the surface geometry of almost every object that moves through......
Middle mine
The History of Mining
Mining has long been a part of human civilization. Going back as far as 3,000 BCE, humans have been adept at exploiting the resources of the earth for their benefit. From the Bronze age through the Roman Empire, and across hundreds of cultures, taking resources from the grou......
underground coal gasification
Underground Coal Gasification
Underground coal gasification (UCG) is an emerging technology that has the potential to reduce emissions of pollutants and to increase the efficiency of coal resources all over the world.
UCG is a process in which coal seams are converted into combustible gases, suc......
low expansion alloy
Low Expansion Alloys
Low expansion alloys, like Invar and Galfan, have been used for a wide variety of applications over the past few centuries. These alloys are advantageous for their ability to maintain a relatively small, constant size over a range of temperatures. This characteristic makes th......
annealing
Simulated Annealing
Simulated annealing (SA) is a probabilistic technique for approximating the global optimum of a given function. Specifically, it is a metaheuristic to approximate global optimization in a large search space. From a practical perspective, simulated annealing is useful for comb......
Magnesium processing
Magnesium Processing Introduction Magnesium processing is a metalworking process that involves the use of magnesium to create components for a variety of applications. In its pure state, magnesium is a lightweight, strong, malleable metal. It is often used as an alloying element to create strong, l......
Metallurgical Flux
Metallurgical flux is a material that has been used in metallurgical processes for thousands of years. It is a white, powdery material made of lime, borax or soda, with or without other additives. The purpose of this material is to draw impurities from the metals being melted and to help the metal......
elastic alloy
Introduction
Elastic alloys are materials that can be stretched, bent and reshaped without permanent damage. These materials are not considered rigid and are able to be manipulated or changed in response to external forces. Some of the most common types of elastic alloy include rubber, latex, and......
Matte smelting
Introduction
The process of smelting is a complex industrial process that requires the right combination of materials and equipment used in an exact order to create finished steel products. A variety of raw materials and chemical processes are combined to produce the high-temperature process kno......
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