- fixed coupling
- coupling in which the premature heart beats follow the preceding normal beats at identical intervals.
Medical dictionary. 2011.
Medical dictionary. 2011.
coupling interval — the length of time between an ectopic beat and the sinus beat preceding it; in an arrhythmia characterized by such beats, the intervals may be constant (fixed coupling intervals) or inconstant (variable coupling intervals) … Medical dictionary
Coupling (railway) — Knuckle (AAR Type E ) couplers in use ICE coupler A c … Wikipedia
Coupling — This article is about a mechanical connection between two objects. For other uses, see Coupling (disambiguation). Rotating coupling A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power.… … Wikipedia
Coupling (probability) — In probability theory, coupling is a proof technique that allows one to compare two unrelated variables by forcing them to be related in some way. Definition Using the standard formalism of probability, let X1 and X2 be two random variables… … Wikipedia
Coupling rod — connecting rod and coupling rods attached to a small locomotive driving wheel A coupling rod or side rod connects the driving wheels of a locomotive. Steam locomotives in particular usually have them, but some diesel and electric locomotives,… … Wikipedia
Fixed cut-off — Expansion Ex*pan sion, n. [L. expansio: cf. F. expansion.] 1. The act of expanding or spreading out; the condition of being expanded; dilation; enlargement. [1913 Webster] 2. That which is expanded; expanse; extend surface; as, the expansion of a … The Collaborative International Dictionary of English
Fixed expansion gear — Expansion Ex*pan sion, n. [L. expansio: cf. F. expansion.] 1. The act of expanding or spreading out; the condition of being expanded; dilation; enlargement. [1913 Webster] 2. That which is expanded; expanse; extend surface; as, the expansion of a … The Collaborative International Dictionary of English
Coupling from the past — Among Markov chain Monte Carlo (MCMC) algorithms, coupling from the past is a method for sampling from the stationary distribution of a Markov chain. Contrary to many MCMC algorithms, coupling from the past gives in principle a perfect sample… … Wikipedia
coupling — 1. Usually the result of the repeated pairing of a normal sinus beat with a ventricular extrasystole. 2. See c. phase. 3. A condition in which one or more products of a reaction are the subsequent reactants (or substrates) of a second reaction.… … Medical dictionary
Infrared fixed point — In physics, an infrared fixed point is a set ofcoupling constants, or other parameters that evolve from initial values at very high energies (short distance), to fixed stable values,usually predictable, at low energies (large distance). This… … Wikipedia