منابع مشابه
Myocardial recovery by mechanical unloading with left ventricular assist system.
It has been generally believed that advanced congestive heart failure (HF) is progressive, but there is increasing evidence that mechanical unloading with the use of left ventricular assist system (LVAS) occasionally reverses the progress of HF and permits device explantation. This "bridge to recovery" strategy is attracting interest, not only for the treatment of severe HF, but also in the stu...
متن کاملElectromagnetic Gyroscopic Motion
1 Mathematics Department, Preparatory Year Deanship, UmmAl-Qura University, P.O. Box 5555, Makkah 21955, Saudi Arabia 2 Faculty of Science, Tanta University, P.O. Box 31527, Tanta, Egypt 3 Mathematics Department, Faculty of Girls Education and Science, Taif University, Al-Khurmah Branch, P.O. Box 888, Taif 21974, Saudi Arabia 4 Electricity Department, Faculty of Engineering, Umm Al-Qura Univers...
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Here, gyroscopic systems are time-invariant systems for which motions can be characterized by properties of a matrix pencil L(λ) = λ2I + λG − C, where GT = −G and C > 0. A strong stability condition is known which depends only on |G| (= (GT G)1/2 ≥ 0) and C. If a system with coefficients G0 and C satisfies this condition then all systems with the same C and with a G satisfying |G| ≥ |G0| are al...
متن کاملA 2d spray model with gyroscopic effects
In this paper we introduce a PDE system which aims at describing the dynamics of a dispersed phase of particles moving into an incompressible perfect fluid, in two space dimensions. The system couples a Vlasov-type equation and an Euler-type equation: the fluid acts on the dispersed phase through a gyroscopic force whereas the latter contributes to the vorticity of the former. First we give a D...
متن کاملTopological mechanics of gyroscopic metamaterials.
Topological mechanical metamaterials are artificial structures whose unusual properties are protected very much like their electronic and optical counterparts. Here, we present an experimental and theoretical study of an active metamaterial--composed of coupled gyroscopes on a lattice--that breaks time-reversal symmetry. The vibrational spectrum displays a sonic gap populated by topologically p...
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ژورنال
عنوان ژورنال: Electronics and Control Systems
سال: 2009
ISSN: 1990-5548
DOI: 10.18372/1990-5548.22.748