Results 31 to 40 of about 2,522,578 (311)

Sturmian Theorems for Second Order Systems [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
Sturmian theorem are established for weakly coupled elliptic systems generated in a bounded domain by the expressions l
openaire   +2 more sources

Periodic solutions for second order Hamiltonian systems [PDF]

open access: yes, 1977
summary:By using the least action principle and minimax methods in critical point theory, some existence theorems for periodic solutions of second order Hamiltonian systems are ...
Zhou, Yinggao   +8 more
core   +1 more source

Search Patterns Based on Trajectories Extracted from the Response of Second-Order Systems

open access: yesApplied Sciences, 2021
Recently, several new metaheuristic schemes have been introduced in the literature. Although all these approaches consider very different phenomena as metaphors, the search patterns used to explore the search space are very similar.
Erik Cuevas   +6 more
doaj   +1 more source

Why second order parabolic systems?

open access: yesRocky Mountain Journal of Mathematics, 1986
The authors provide a set of general properties - determinism, smoothness, locality, linearity or semilinearity, positivity, maximum principle, some combinations of which give sufficient conditions for the system to be a solution of a reaction-diffusion equation.
Boukricha, Abderrahman, Sieveking, Malte
openaire   +2 more sources

No dedicated second-order motion system

open access: yesJournal of Vision, 2013
The existence of a second-order motion system distinct from both the first-order and feature tracking motion systems remains controversial even though many consider it well established. In the present study, the texture contribution to motion was measured within and beyond the spatial acuity of attention by presenting the stimuli in the near periphery ...
Rémy, Allard, Jocelyn, Faubert
openaire   +2 more sources

A Pure First Order Representation for Undamped Second Order Descriptor Systems [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2011
The aim of this paper is to analyze the undamped second order descriptor systems to show the possibility of transform an undamped second order descriptor system to a pure first order descriptor system ,on different ways, while stating some of its ...
A. Aasaraai
doaj  

The Second Order Particle System. [PDF]

open access: yes, 2003
In this paper we present an extension to the classical particle system. We unify particles, particle sources, and force generators into a second order particle system. In the second order particle system the particle sources and force generators are subject to the forces as well as visual particles.
Ilmonen, Tommi, Kontkanen, Janne
openaire  

PID control of second-order systems with hysteresis [PDF]

open access: yes2007 46th IEEE Conference on Decision and Control, 2007
The efficacy of proportional, derivative and integral (PID) control for set point regulation and disturbance rejection is investigated in a context of mechanical systems with hysteretic components. Two basic structures are studied: in the first, the hysteretic component resides (internally) in the restoring force action of the system ("hysteretic ...
Bayu Jayawardhana   +2 more
openaire   +3 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Asymptotic behavior for second order lattice dynamical systems

open access: yesDiscrete Dynamics in Nature and Society, 2001
We consider the existence of the global attractor for a second order lattice dynamical systems.
Shengfan Zhou
doaj   +1 more source

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