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instability
(redirected from instabilities)

    Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia 0.01 sec.
instability
1. tendency to variable or unpredictable behaviour
2. Physics a fast growing disturbance or wave in a plasma
instability [‚in·stə′bil·əd·ē]
(control systems)
A condition of a control system in which excessive positive feedback causes persistent, unwanted oscillations in the output of the system.
(physics)
A property of the steady state of a system such that certain disturbances or perturbations introduced into the steady state will increase in magnitude, the maximum perturbation amplitude always remaining larger than the initial amplitude.
instability
In a structure, the sudden loss of stiffness that limits its load-carrying capability, and in some cases results in the structure’s failure.
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But the developing countries are more prone to financial instabilities and their ability to counter this problem is limited.
Financial Instability Bubble in America, Europe, and Asia by Robin Trehan / Business community
They cover the contract- line instabilities of driven liquid films; the numerical simulation of three-dimensional bubble oscillations; instability and wave radiation in stratified shear flow; basic equations and mathematical techniques to study the instability of viscous and inviscid flows; stability, transition, and turbulence in rotating cavities; and hydrodynamic instability.
Instability of Flows by SciTech Book News
It was concluded that there are essentially two types of interfacial instabilities and that the MW had the strongest effect on the occurrence of the "zig-zag" instability due to high interfacial stress while the breadth of the MWD had a strong effect on the app earance of the "wave" instability.
Interfacial Instabilities in Coextrusion Flows of Low-Density ... by TZOGANAKIS, COSTAS; PERDIKOULIAS, JOHN / Polymer Engineering and Science
 
 
 
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