Results 71 to 80 of about 679,323 (292)
Complete geometric invariant study of two classes of quadratic systems
Electronic Journal of Differential Equations, 2012 In this article, using affine invariant conditions, we give a complete study for quadratic systems with center and for quadratic Hamiltonian systems.
Joan C. Artes +2 more
doaj
Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam
Advanced Engineering Materials, EarlyView.Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley +1 more source
Set simulations for quadratic systems
IEEE Transactions on Automatic Control, 2003 In this paper, we study the problem of propagating in time a bounding set for the state of a class of nonlinear quadratic systems. The sequence of bounding sets is called the set simulation of the system, and conveys useful information about the stability and qualitative behavior of the possible time responses of the system.
openaire +2 more sources
Advanced Engineering Materials, EarlyView.Cermets (60 vol.% AISI 316L stainless steel, 40 vol.% recycled MgO), intended for use in aluminum electrolysis, were pre‐oxidized in three furnaces with different heating technologies and subjected to a cryolite corrosion test. The different atmospheres influenced the formation of oxide layers, which in turn affected corrosion resistance and ...
Patricia Kaiser +4 more
wiley +1 more source
When singular points determine quadratic systems
Electronic Journal of Differential Equations, 2008 When one considers a quadratic differential system, one realizes that it depends on 12 parameters of which one can be fixed by means of a time change.
Nicolae Vulpe +2 more
doaj
Quadratic Zonotopes:An extension of Zonotopes to Quadratic Arithmetics [PDF]
, 2015 Affine forms are a common way to represent convex sets of $\mathbb{R}$ using a base of error terms $\epsilon \in [-1, 1]^m$. Quadratic forms are an extension of affine forms enabling the use of quadratic error terms $\epsilon_i \epsilon_j$.
Adjé, Assalé +2 more
core
, 2011 A starting point of this paper is a classification of quadratic polynomial transformations of the monodromy manifold for the 2x2 isomonodromic Fuchsian systems associated to the Painleve VI equation.
Bolibruch +26 more
core +1 more source
Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading
Advanced Engineering Materials, EarlyView.The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley +1 more source
AppliedMathAfter linear differential systems in the plane, the easiest systems are quadratic polynomial differential systems in the plane. Due to their nonlinearity and their many applications, these systems have been studied by many authors.
Joan Carles Artés +2 more
doaj +1 more source
Rocky Mountain Journal of Mathematics, 1984 [For part I see Bull. Soc. Math. Fr., Suppl., Mèm. 59, 115-123 (1979; Zbl 0407.10017).] Ein System von r quadratischen Formen in n Variablen über einem Körper F wird als quadratische Abbildung \(q: V\to W\) aufgefaßt, wobei \(\dim_ F V=n\), \(\dim_ F W=r\) ist.
openaire +3 more sources