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The company is the world's largest producer of talc, [citation needed] with mines and processing plants located in Europe, North America, Australia, and East Asia. The Luzenac Group was a wholly owned subsidiary of the Rio Tinto Group from 1988 [ 1 ] until August 2011, when it was sold to Imerys .
Mondo Minerals, nowadays part of Elementis, is a leading globally active producer of talc [citation needed] products. Its main brands are Finntalc, Plustalc and Microtalc. The company develops and markets specialized products for paints and coatings, plastics, cordierite ceramics, consumables, pharmaceutical and paper applicatio
Magnetic separation is also used in situations where pollution needs to be controlled, in chemical processing, as well as during the benefaction of nonferrous low-grade ores. [1] Magnetic separation is also used in the following industries: dairy, grain and milling, plastics, food, chemical, oils, textile, and more.
Accelerating electric charges, such as are found in an alternating current (AC) of electrons in a wire, create time-varying electric and magnetic fields in the space around them. These fields can exert oscillating forces on the electrons in a receiving "antenna", causing them to move back and forth.
The moving electric charge creates a magnetic field, which fluctuates in strength because the electric current's amplitude is fluctuating. This changing magnetic field creates an alternating electric current in the portable device's induction coil, which in turn passes through a rectifier to convert it to direct current .
The toothbrush has the features we’d expect of a high-powered electric toothbrush, including a two-minute timer and multiple brush speeds — the real luxury is in the flossing capabilities ...
Emissions are typically measured for radiated field strength and where appropriate for conducted emissions along cables and wiring. Inductive (magnetic) and capacitive (electric) field strengths are near-field effects and are only important if the device under test (DUT) is designed for a location close to other electrical equipment.
Because the tops have magnets only at the corners, there's a slight gap in the center between the top and the frame — but it's not noticeable to you as the wearer and barely noticeable to onlookers.