Results 221 to 230 of about 23,170 (262)

Carbon sequestration potential of electrokinetically treated fine-grained expansive soils. [PDF]

Sci Rep
Abiodun AA.
europepmc   +1 more source

Pareto-Front Optimization of Variance-Added Expected Loss with Interrelated Qualities. [PDF]

Entropy (Basel)
Kim S, Lee K.
europepmc   +1 more source

Regularized micromagnetic theory for Bloch points. [PDF]

Commun Phys
Kuchkin VM, Haller A, Michels A, Schmidt TL, Kiselev NS.   +4 more
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Proof-of-Concept Machine Learning Framework for Arboviral Disease Classification Using Literature-Derived Synthetic Data: Methodological Development Preceding Clinical Validation. [PDF]

Healthcare (Basel)
Cruz-Parada E, Vivar-Estudillo G, Pérez-Campos Mayoral L, Hernández-Huerta MT, Pérez-Santiago AD, Romero-Diaz C, Pérez-Campos Mayoral E, Montalvo IAG, Martínez-Martínez L, Martínez-Ruiz H, Matadamas I, Avendaño-Villegas ME, Martínez Cruz M, Cabrera-Fuentes HA, Pérez-Ramos AE, Pérez-Campos EL, Lastre-Domínguez CM.   +16 more
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A smooth vector field for quadratic programming

2012 IEEE 51st IEEE Conference on Decision and Control (CDC), 2012
In this paper we consider the class of convex optimization problems with affine inequality constraints and focus hereby on the class of quadratic programs. We propose a smooth vector field that is constructed such that its trajectories converge to the saddle point of the Lagrangian function associated to the convex optimization problem.
Christian Ebenbauer, Hans-Bernd Dürr
exaly   +2 more sources

On the global analysis of the planar quadratic vector fields

Nonlinear Analysis: Theory, Methods & Applications, 1997
Using the concept of intersection multiplicity of projective curves, the author studies bifurcations of planar quadratic Hamiltonian systems (QHC). All bifurcation points (finite or infinite) of such systems are characterized by their intersection multiplicities.
Dana Schlomiuk
exaly   +2 more sources

A note on the completeness of homogeneous quadratic vector fields on the plane

Qualitative Theory of Dynamical Systems, 2005
The authors give a full description of the complete homogeneous quadratic vector fields defined on the plane. The main results obtained are as follows. Main results: Let \(F\) be a homogeneous quadratic vector field defined on the plane. Then the following assertions are equivalent: (1) \(F\) is complete; (2) \(F\) is quadratic-affine or the equation \(
Alberto Medina
exaly   +3 more sources

Vector fields and quadratic maps

The Journal of the Acoustical Society of America, 1998
Vector fields describing responses of nonlinear systems are often investigated by sampling on a suitable Poincaré section. For example, period-1 limit cycles yield one fixed point, period-2 two points, and so on. More information could be obtained if the full return map on the section rather than just the fixed points were known.
Huw G. Davies, Konstantinos Karagiosis
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Quadratic vector fields in class I

Dynamical Systems
In [Ye et al., Theory of Limit Cycles, 1986], quadratic systems are classified into three different normal forms (I, II and III) with increasing number of parameters. The simplest family is I and even several subfamilies of it have been studied, and some global attempts have been done, up to this paper, the full study was still undone. In this article,
Artés Ferragud, Joan Carles, Chen, Hebai, Ferrer, Lluc Manel, Jia, Man   +3 more
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A Summary of Structurally Stable Quadratic Vector Fields

2018
To make this work self-contained, we are going to summarize in this chapter all the needed results from the paper of Artes et al. (Mem. Am. Math. Soc. 134(639), 1998). For the results of the present paper, the realizable structurally stable quadratic vector fields and the non-realizable ones are very important.
Joan C. Artés, Jaume Llibre, Alex C. Rezende   +2 more
openaire   +1 more source