Stability (probability) — In probability theory and statistics, the stability of a family of probability distributions is an important property which basically states that if one has a number of random variates that are in the family , any linear combination of these… … Wikipedia
Stability theory — In mathematics, stability theory deals with the stability of solutions (or sets of solutions) for differential equations and dynamical systems. Definition Let (R, X, Φ) be a real dynamical system with R the real numbers, X a locally compact… … Wikipedia
Stability spectrum — In model theory, a branch of mathematical logic, a complete first order theory T is called stable in λ (an infinite cardinal number), if the Stone space of every model of T of size ≤ λ has itself size ≤ λ. T is called a stable theory if there is… … Wikipedia
Variable-sweep wing — A Variable sweep wing is an aeroplane wing that may be swept back and then returned to its original position during flight. It allows the aircraft s planform to be modified in flight, and is therefore an example of variable geometry.Typically, a… … Wikipedia
Variable extensive — Extensivité intensivité Extensive et intensive sont des catégories de variables physiques. Prenons un exemple : si deux chevaux courent côte à côte et chacun à 60 km/h, à eux deux ils ne font pas un ensemble allant à 120 km/h, l ensemble va… … Wikipédia en Français
Variable intensive — Extensivité intensivité Extensive et intensive sont des catégories de variables physiques. Prenons un exemple : si deux chevaux courent côte à côte et chacun à 60 km/h, à eux deux ils ne font pas un ensemble allant à 120 km/h, l ensemble va… … Wikipédia en Français
Variable intensive et variable extensive — Extensivité intensivité Extensive et intensive sont des catégories de variables physiques. Prenons un exemple : si deux chevaux courent côte à côte et chacun à 60 km/h, à eux deux ils ne font pas un ensemble allant à 120 km/h, l ensemble va… … Wikipédia en Français
Variable-frequency oscillator — A variable frequency oscillator (VFO) in electronics is a oscillator with an oscillation frequency that can be electronically changed (hence, variable).cite book |title=The ARRL Handbook for Radio Amateurs, Sixty Eighth Edition |editor=Larry D.… … Wikipedia
stability augmentation system — i. An autostabilizer system that is essentially a damping device incorporated in most helicopters. The stability augmentation system enhances stability but does not have the ability to hold a given datum. ii. Various forms of auxiliary subsystems … Aviation dictionary
Electronic stability control — (ESC) is a computerized technology [1][2] that may potentially improve the safety of a vehicle s stability by detecting and minimizing skids.[3] When ESC detects loss of steering control, it automatically applies the brakes to help steer the… … Wikipedia
Ecological stability — can take on any connotation in a continuum ranging from resilience (returning quickly to a previous state) to constancy (lack of change) to persistence (simply not going extinct). The precise definition depends on the ecosystem in question, the… … Wikipedia