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counting technique

См. также в других словарях:

  • scintillation counting technique — a method of determining the amount of radioactivity by use of a scintillation counter (q.v.) …   Medical dictionary

  • counting sheep — Meaning Attempting to get to sleep. Origin A reference to the distraction technique used to counter insomnia …   Meaning and origin of phrases

  • scintillation counting — Technique for measuring quantity of a radioactive isotope present in a sample. In biology, liquid scintillation counting is mainly used for b emitters such as 14C, 35S and 32P and particularly for the low energy b emission of 3H. Gamma emissions… …   Dictionary of molecular biology

  • Reference counting — In computer science, reference counting is a technique of storing the number of references, pointers, or handles to a resource such as an object or block of memory. It is typically used as a means of deallocating objects which are no longer… …   Wikipedia

  • Double counting (proof technique) — In combinatorics, double counting, also called counting in two ways, is a combinatorial proof technique for showing that two expressions are equal by demonstrating that they are two ways of counting the size of one set. In this technique, which… …   Wikipedia

  • Card counting — A blackjack game in progress Card counting is a casino card game strategy used primarily in the blackjack family of casino games to determine whether the next hand is likely to give a probable advantage to the player or to the dealer. Card… …   Wikipedia

  • Crowd counting — The Million Man March, Washington, D.C., October 1995 was the focus of a large crowd counting dispute. Crowd counting is a technique used to count or estimate the number of people in a crowd. At ticketed events, turnstiles are often used to… …   Wikipedia

  • Skip counting — is a mathematics technique taught as a kind of multiplication in standards based mathematics textbooks such as TERC. In older textbooks, this technique is called counting by twos (threes, fours, etc.). In skip counting by twos, a person can count …   Wikipedia

  • Whole body counting — In Health Physics Whole body counting, refers to the measurement of radioactivity within the human body. The technique is only applicable to radioactive material that emit gamma rays, although in certain circumstances, beta emitters can be… …   Wikipedia

  • Double counting — may refer to: Double counting (proof technique), a method in combinatorics that proves two expressions to be equal by demonstrating that they are different ways of counting the same set Double counting (fallacy), a fallacy in combinatorics and… …   Wikipedia

  • coincidence counting — ▪ physics       in physics, the almost simultaneous detection of two nuclear or subatomic particles (e.g., within a time of 10−5 second). Coincidence counting involves two or more particle counters exposed to the same source of particles and… …   Universalium

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