scholarly journals High beta and second stability region transport and stability analysis

1990 ◽  
Author(s):  
Not Given Author
1992 ◽  
Author(s):  
M.H. Hughes ◽  
M.W. Phillps ◽  
A.M.M. Todd ◽  
J. Krishnaswami ◽  
R. Hartley

1992 ◽  
Author(s):  
M.H. Hughes ◽  
M.W. Phillps ◽  
A.M.M. Todd ◽  
J. Krishnaswami ◽  
R. Hartley

1978 ◽  
Vol 33 (7) ◽  
pp. 792-798
Author(s):  
W. Kerner

The stability behavior with respect to internal modes is discussed for a class of tokamak equilibria with non-circular cross-sections and essentially flat current profiles. The stability analysis is done by computer both symbolically and numerically with the help of a normal mode code, which extremizes the Lagrangian of the system . It is found that the stability limit agrees well with that of the Mercier criterion. There are stable high-beta equilibria in this model.


2016 ◽  
Vol 44 (2) ◽  
pp. 113-120
Author(s):  
Péter Polcz ◽  

Abstract This paper concerns the computational stability analysis of locally stable Lotka-Volterra (LV) systems by searching for appropriate Lyapunov functions in a general quadratic form composed of higher order monomial terms. The Lyapunov conditions are ensured through the solution of linear matrix inequalities. The stability region is estimated by determining the level set of the Lyapunov function within a suitable convex domain. The paper includes interesting computational results and discussion on the stability regions of higher (3,4) dimensional LV models as well as on the monomial selection for constructing the Lyapunov functions. Finally, the stability region is estimated of an uncertain 2D LV system with an uncertain interior locally stable equilibrium point.


1983 ◽  
Vol 23 (12) ◽  
pp. 1561-1574 ◽  
Author(s):  
A.G. Kellman ◽  
M.W. Phillips ◽  
S.C. Prager ◽  
M.C. Zarnstorff

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