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Four color process
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Depositing combinations of the subtractive primaries cyan, magenta, yellow, and black on paper to achieve. these colorants are deposited as dots of different sizes, shapes, and angles to create the illusion of different colors. see cmy, subtractive primar
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Combinations, английский
The number of combinations of n things taken k at a time is the number of ways of picking a subset of k of the n things, without replacement, and without regard to the order in which the elements of the subset are picked. the number of such combinations is nck = n!/(k!(n−k)!), where k! (pronounced "k factorial") is k×(k−1)×(k−2)× … × 1. the numbers nck are also called the binomial coefficients. from a set that has n elements one can form a total of 2n subsets of all sizes. for example, from the set {a, b, c}, which has 3 elements, one can form the 23 = 8 subsets {}, {a}, {b}, {c}, {a,b}, {a,c}, {b,c}, {a,b,c}. because the number of subsets with k elements one can form from a set with n elements is nck, and the total number of subsets of a set is the sum of the numbers of possible subsets of each size, it follows that nc0+nc1+nc2+ … +ncn = 2n. the calculator has a button (ncm) that lets you compute the number of combinations of m things chosen from a set of n things. to use the button, first type the value of n, then push the ncm button, then type the value of m, then press the "=" button.
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Hifi printing, английский
Process printing that expands the conventional four color process gamut using additional, special ink colors.
Fluorescent lamp, английский
- A lass tube filled with mercury gas and coated on its inner surface with phosphors. when the gas is charged with an electrical current, radiation is produced which in turn energizes the phosphors, causing the phosphors to glow.
- A low-pressure electricdischarge lamp; ultraviolet-light radiation is generated by the passage of an arc through mercury vapor; the inner surface of the lamp tube is coated with a phosphor which absorbs the ultraviolet and converts some of it into visible light. flow pressure 424 flue lining fluorescent lamp
- Commonly and improperly designates an electric lamplike device emitting ultraviolet radiations or black light.
- A glass globe or tube the inner surface of which is coated with a fluorescent substance that produces visible light when excited by an electrical current.
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