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Curved screens are able to separate finer particles (200-3000 μm) than trommel screens. However, binding may occur if the particle size is less than 200 μm [14] which will affect the separation efficiency. The screening rate of a curved screen is also much higher than the trommel screen as the whole surface area of the screen is utilised. [15]
Get-rich-quick schemes are extremely varied; these include fake franchises, real estate "sure things", get-rich-quick books, wealth-building seminars, self-help gurus, sure-fire inventions, useless products, chain letters, fortune tellers, quack doctors, miracle pharmaceuticals, foreign exchange fraud, Nigerian money scams, fraudulent treasure hunts, and charms and talismans.
For scams conducted via written communication, baiters may answer scam emails using throwaway email accounts, pretending to be receptive to scammers' offers. [4]Popular methods of accomplishing the first objective are to ask scammers to fill out lengthy questionnaires; [5] to bait scammers into taking long trips; to encourage the use of poorly made props or inappropriate English-language ...
Empty box scam This buyer scam is one of the oldest (yet most effective) tricks in the book. This scam usually focuses on smaller, high-value items like smartphones or handbags.
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Mechanical screening, often just called screening, is the practice of taking granulated or crushed ore material and separating it into multiple grades by particle size. This practice occurs in a variety of industries such as mining and mineral processing , agriculture, pharmaceutical, food, plastics, and recycling.
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Pump Switching Scam. The pump switching scam, which is one of the newer scams, targets people using credit cards to pay at the pump. The scammers have been approaching unsuspecting victims at the ...