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Winnowing is a process by which chaff is separated from grain. It can also be used to remove pests from stored grain. Winnowing usually follows threshing in grain preparation. In its simplest form, it involves throwing the mixture into the air so that the wind blows away the lighter chaff, while the heavier grains fall back down for recovery.
Chafing is an irritation or superficial abrasion of skin caused by friction, moisture or irritating fabric.Prolonged rubbing on the skin may result in skin sting or burn, and development of a mild, red rash or boils; and in severe cases may include swelling, bleeding, or crusting.
Chaff is dry inedible plant material. Chaff may also refer to: Chaff (countermeasure), a radar countermeasure for aircraft or other targets; Chaff algorithm, an algorithm for solving instances of the boolean satisfiability problem; Chaffing and winnowing, a method in cryptography to protect a message without encryption
Chaff (/ tʃ æ f /; also UK: / tʃ ɑː f /) [1] is dry, scale-like plant material such as the protective seed casings of cereal grains, the scale-like parts of flowers, or finely chopped straw. Chaff cannot be digested by humans, but it may be fed to livestock , ploughed into soil, or burned.
A large amount of chaff and straw would accumulate around a threshing machine, and several innovations, such as the air chaffer, were developed to deal with this. Combines generally chop and disperse straw as they move through the field, though the chopping is disabled when the straw is to be baled, and chaff collectors are sometimes used to ...
The sender wants to send a message to the receiver ().In the simplest setup, Alice enumerates the symbols in her message and sends out each in a separate packet.If the symbols are complex enough, such as natural language text, an attacker may be able to distinguish the real symbols from poorly faked chaff symbols, posing a similar problem as steganography in needing to generate highly ...
A rice huller or rice husker is an agricultural machine used to automate the process of removing the chaff (the outer husks) of grains of rice. Throughout history, there have been numerous techniques to hull rice. Traditionally, it would be pounded using some form of mortar and pestle. An early simple machine to do this is a rice pounder.
This consisted of tossing the mixture of corn and chaff into the air so that the wind carried away the chaff while the grain fell back on the threshing floor. The best grain fell nearest while the lightest grain was carried some distance before falling, thus an approximate grading of the grain was obtained.