Results 41 to 50 of about 2,324,513 (194)

Stability in dynamical astronomy [PDF]

open access: yesProceedings of the National Academy of Sciences, 1978
Hill's concept of stability is generalized and its relation to bifurcation theory is shown. A quantitative measure of stability is introduced that allows the comparison of the stability of different astronomical systems. Theoretical stability limits for triple stellar systems, for planetary systems, and for satellite systems are established.
openaire   +2 more sources

Dinámica de la frecuencia del Sistema Interconectado Ecuador-Colombia

open access: yesRevista Científica de Ingeniería Energética, 2010
This paper presents a procedure to study the dynamics of the frequency of theinterconnected system Ecuador-Colombia when a generation unit comes out of thesystem, and when one doesn't have the necessary information of the electric Colombiansystem ...
Marcelo Arias ; Antonio Martínez
doaj  

Large-Scale Power Base’s Impact on Low Frequency Oscillation Characteristic in UHVAC Power Transmission System

open access: yesIEEE Access, 2019
The dynamic stability of ultra-high voltage alternating current (UHVAC) transmission system with large-scale power bases has not been clearly discussed before.
Qin Jiang, Baohong Li, Tianqi Liu
doaj   +1 more source

DYNAMIC MATRIX GAMES AND THEIR MIXED EXTENSION

open access: yesВестник Кемеровского государственного университета, 2014
A new class of game models, called dynamic matrix games (DMG) was introduced in [2] as a generalization of the classical matrix games considering the time factor.
N. N. Danilov
doaj  

Temperature dependence of phase stabilities of hexagonal hemicarbides from first principles

open access: yesMaterials Research Express
Transition metal hemicarbides, specifically M _2 C (where M = V, Nb, Ta, Mo and W), have received considerable attention in the fields of catalysis and metallurgy.
Chao Deng   +4 more
doaj   +1 more source

Coordinated Optimization of Generator Excitation System for Improving Transmission Capacity of Power System

open access: yesZhongguo dianli, 2019
For long-distance AC transmission system from energy base to load center, the system damping is insufficient when N–1 fault occurs, which leads to the reduction of transmission capacity.
Guanhong WANG   +6 more
doaj   +1 more source

Dynamic instability modeling on phase plane for thin aeroshell capsule with pitching motion at transonic speed

open access: yesMechanical Engineering Journal
For sample return missions from deep space, a thin aeroshell capsule was proposed aimed at mitigating the aerodynamic heating during its reentry into the earth's atmosphere.
Hideto TAKASAWA   +6 more
doaj   +1 more source

Temporal characterization of rock dynamic destruction [PDF]

open access: yes, 2019
Dynamic strength tests published in literature have been analysed by structuraltemporal damage criteria. Parameter τ - incubation time - describing material stability behaviour under high-rate influences have been estimated for Kimachi sandstone, Inada ...
Martemyanov, A. N., Petrov, Yu V.
core  

Characterizing Stability Properties in Games with Strategic Substitutes [PDF]

open access: yes
In games with strategic substitutes (GSS), convergence of the best response dynamic starting from the inf (or sup) of the strategy space is equivalent to global stability (convergence of every adaptive dynamic to the same pure strategy Nash equilibrium).
Sunanda Roy, Tarun Sabarwal
core  

On the Dynamic Foundation of Evolutionary Stability in Continuous Models [PDF]

open access: yes
We show in this paper that none of the existing static evolutionary stability concepts (ESS, CSS, uninvadability, NIS) is sufficient to guarantee dynamic stability in the weak topology with respect to standard evolutionary dynamics if the strategy space ...
Frank Riedel, Jörg Oechssler
core  

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