Listar A) Publicaciones Científicas UCSC por título
Mostrando ítems 221 de 587

A branch and cut algorithm for the hierarchical network design problem
(2010)The Hierarchical Network Design Problem consists of locating a minimum cost bilevel network on a graph. The higher level subnetwork is a path visiting two or more nodes. The lower level subnetwork is a forest connecting ... 
A branchandprice algorithm for the Vehicle Routing Problem with Deliveries, Selective Pickups and Time Windows
(2010)In the Vehicle Routing Problem with Deliveries, Selective Pickups and Time Windows, the set of customers is the union of delivery customers and pickup customers. A fleet of identical capacitated vehicles based at the depot ... 
A Case Study on EFL Teachers’ Beliefs About the Teaching and Learning of English in Public Education
(2015)Teachers’ beliefs have been a fascinating topic for researchers for the amount of input they can provide for reflection and the improvement of the teaching and learning of English. This case study aims at identifying the ... 
A comparative analysis of intonation between Spanish and English speakers in tag questions, whquestions, inverted questions, and repetition questions
(2013)The aim of this study was to determine the differences and similarities in intonation when producing tag questions, whquestions, inverted questions, and repetition questions among native English speakers and ESL Spanish ... 
A complete characterization of strong duality in nonconvex optimization with a single constraint
(2012)We first establish sufficient conditions ensuring strong duality for cone constrained nonconvex optimization problems under a generalized Slatertype condition. Such conditions allow us to cover situations where recent ... 
A contract for coordinating capacity decisions in a businesstobusiness (B2B) supply chain
(2015)We address the problem of coordinating the capacity decisions of two autonomous manufacturers engaged in a buyer–supplier relationship. We propose and analyze a supply contract designed to coordinate the companies׳ single ... 
A design peak flow estimation method for mediumlarge and datascarce watersheds with frontal rainfall
(2012)We developed a reliable peak flow estimation method for the design of hydraulic structures. The method is valid in mediumlarge watersheds (1005,000 km2) located in Chile between 32°45′ and 43°50′S, with scarcity of ... 
A dualmixed finite element method for nonlinear incompressible elasticity with mixed boundary conditions
(2007)In this paper we consider the HuWashizu principle and propose a new dualmixed finite element method for nonlinear incompressible plane elasticity with mixed boundary conditions. The approach extends a related previous ... 
A FEM–DtN formulation for a nonlinear exterior problem in incompressible elasticity
(2003)In this paper, we combine the usual infinite element method with a DirichlettoNeumann (DtN) mapping, derived in terms of an infinite Fourier series, to study the solvability and Galerkin approximations of an exterior ... 
A generalized action for(2 + 1)dimensional Chern–Simons gravity
(2012)We show that the socalled semisimple extended Poincar ́e (SSEP) algebra inDdimensions canbe obtained from the antide Sitter algebraso(D−1,2) by means of theSexpansion procedurewith an appropriate semigroupS. A general ... 
A mixed method for the biharmonic problem based on a system of firstorder equations.
(2011)We introduce a new mixed method for the biharmonic problem. The method is based on a formulation where the biharmonic problem is rewritten as a system of four firstorder equations. A hybrid form of the method is introduced ... 
A new family of Mixed Methods for the ReissnerMindlin Plate Model based on a System of firstorder equations
(2011)The mixed method for the biharmonic problem introduced in [12] is extended to the ReissnerMindlin plate model. The ReissnerMindlin problem is written as a system of first order equations and all the resulting variables ... 
A parasitic copepod, Neoalbionella sp. (Lernaeopodidae), on the southern lanternshark Etmopterus granulosus (Etmopteridae) off Juan Fernández Archipelago, Chile
(2010)The morphology of an as yet undetermined Neoalbionella species is described from specimens collected from the second dorsal fin of the southern lanternshark Etmopterus granulosus, caught at a submerged ridge off Juan ... 
A pedagogical model to develop teaching skills. The collaborative learning experience in the Immersive Virtual World TYMMI
(2015)The initial training of quality teachers is seen as a key to improving the learning outcomes of students in Chile. The TYMMI project is one of the initiatives being developed to provide a space for simulation for teaching ... 
A posteriori error analysis of an augmented mixed finite element method for Darcy flow
(2015)We develop an a posteriori error analysis of residual type of a stabilized mixed finite element method for Darcy flow. The stabilized formulation is obtained by adding to the standard dualmixed approach suitable residual ... 
A posteriori error analysis of an augmented mixed formulation in linear elasticity with mixed and Dirichlet boundary conditions
(2011)We develop a residualbased a posteriori error analysis for the augmented mixed methods introduced in [13] and [14] for the problem of linear elasticity in the plane. We prove that the proposed a posteriori error estimators ... 
A posteriori error estimates for elliptic problems with Dirac delta source terms
(2006)The aim of this paper is to introduce residual type a posteriori error estimators for a Poisson problem with a Dirac delta source term, in Lp norm and W1,p seminorm. The estimators are proved to yield global upper and ... 
A posteriori error estimates for the problem of electrostatics with a dipole source
(2014)Electroencephalography is a noninvasive technique for detecting brain activity from the measurement of the electric potential on the head surface. In mathematical terms, it reduces to an inverse problem in which the goal ... 
A probabilistic economic dispatch model and methodology considering renewable energy, demand and generator uncertainties
(2015)In this paper a probabilistic economic dispatch model considering thermal units (fuel generators), photovoltaic arrays and wind energy conversion systems is proposed. Wind speed, solar radiation and power demand are ...