Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 2506-2525 of 20468
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(Elsevier, 2020)A non-equiatomic Fe(50)Mn(30)Co(10)Cr(10 )alloy was prepared by laser cladding, and the effects of boron addition on the microstructure, hardness and abrasive wear-resistance were investigated. Elemental powders were mixed ...
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(Blackwell, 2009)Quartz-hosted melt inclusions from latite dykes of the Eocene El Salvador copper porphyry system in northern Chile display wide ranges in both boron concentration (15–155 p.p.m. B) and isotope composition (d11B )7 to ...
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(SIAM publications, 2017)The direct problem of water-wave equations is the problem of determining the surface and its velocity potential, in time T > 0, for a given initial profile and velocity potential, where the profile of the bottom, the ...
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(SIAM PUBLICATIONS, 1998-03)This paper is devoted to the asymptotic analysis of the spectrum of a mathematical model that describes the vibrations of a coupled fluid-solid periodic structure. In a previous work [Arch. Rational Mech. Anal., 135 (1996), ...
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(Springer, 2020)We characterize in Hilbert spaces the boundary of the values of maximal monotone operators, by means only of the values at nearby points, which are close enough to the reference point but distinct of it. This allows to ...
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(Springer, 2015)This paper was originally motivated by the problem of providing a point-based formula (only involving the nominal data, and not data in a neighborhood) for estimating the calmness modulus of the optimal set mapping in ...
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Boundary singularities of solutions of semilinear elliptic equations with critical Hardy potentials (Elsevier, 2015)We study the boundary behavior of positive functions u satisfying (E) - Delta u-kappa/d(2)(x)u+g(u) = 0 in a bounded domain ohm of R-N, where 0 < kappa <= 1/4, g is a continuous nondecreasing function and d(.) is the ...
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(Cambridge Univ Press, 2015)Let n >= 2 and let Omega subset of Rn+1 be a Lipschitz wedge-like domain. We construct positive weak solutions of the problem Delta u + u(P) = 0 in Omega that vanish in a suitable trace sense on partial derivative ...
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(Universidad de Chile, 2020)A key task for an effective marketing strategy is to understand how the consumers make choices. The way in which the consumers adopt, maintain or change their preferences is fundamental for the designing of new products, ...
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(Elsevier, 2016)We establish conditions to guarantee boundedness and convergence of signals described by non integer order equations using Caputo derivatives. The case of linear time-varying unforced equations is first studied, and ...
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(Elsevier, 2016)This paper presents the analysis of three classes of fractional differential equations appearing in the field of fractional adaptive systems, for the case when the fractional order is in the interval alpha is an element ...
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(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2016)We study a principal-agent problem with discrete outcome and effort level spaces. The principal and the agent are risk neutral and the latter is subject to limited liability. Quantifying welfare loss as the ratio between ...
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(BioMed Central, 2019)Staphylococcus aureus is the most commonly isolated pathogen from clinical bovine mastitis samples and a difficult pathogen to combat. Mesenchymal stem cells (MSC) are multipotent progenitor cells equipped with a variety ...
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(Sociedad Medica de Santiago, 2019)
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(Universidad de Chile, 2012)Durante una neurocirugía se debe contar con información anatómica precisa, la cual es comúnmente obtenida por medio de un registro entre la posición del paciente y datos pre-operatorios. Uno de los principales problemas ...
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Branch-and-price and constraint programming for solving a real-life technician dispatching problem (Elsevier, 2014)We consider a real problem faced by a large company providing repair services of office machines in Santiago, Chile. In a typical day about twenty technicians visit seventy customers in a predefined service area in ...
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(MDPI, 2017)In the last few years, several investigations have been carried out in the field of optimal sizing of energy storage systems (ESSs) at both the transmission and distribution levels. Nevertheless, most of these works make ...
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(ELSEVIER, 2008-01-15)The South Central Pacific is the location of an abnormal concentration of intraplate volcanism. Noting that this volcanism is present from the Kermadec Tonga trench to the Easter microplate and forms a wide east-west ...
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(Elsevier, 2013)This paper is focused to the field-induced dynamics of vortex-like domain walls (VDWs) in magnetic nanotubes (MNTs). Based on a dissipative Lagrangian formalism that fully includes damping as well as exchange and dipole–dipole ...
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(Springer, 2020)The sum of squares (SoS) hierarchy gives an automatized technique to create a family of increasingly tight convex relaxations for binary programs. There are several problems for which a constant number of rounds of this ...