Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 20271-20290 of 20545
-
(Universidad de Chile, 2012)El terremoto del 27 de febrero del 2010 (27-F), con una magnitud de 8,8 Mw, afectó con diversos grados de daño a los conjuntos de vivienda social situados en la zona centro sur de Chile, construidos principalmente en ...
-
(Wiley-Liss Inc., 2019)© 2018 Wiley Periodicals, Inc. Objectives: To investigate the variation in dental nonmetric traits and to evaluate the utility of this variation for inferring genetic ancestry proportions in a sample of admixed Latin ...
-
(Springer Netherlands, 2019)© 2018, Springer Nature Switzerland AG.Salinity is an important environmental factor influencing microbial community composition. To better understand this influence, we determined the bacterial communities present in 17 ...
-
(Springer-Verlag, 2010)Measurable molybdenum isotope fractionation in molybdenites from different ore deposits through time provides insights into ore genesis and a new technique to identify open-system behavior of Re–Os in molybdenites. Molybdenite ...
-
(2007)Variational inequality representations are set up for a general Walrasian model of consumption and production with trading in a market. The variational inequalities are of functional rather than geometric type and therefore ...
-
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2006-10-15)Let Omega be a bounded domain with smooth boundary in R-2. We construct non-constant solutions to the complex-valued Ginzburg-Landau equation epsilon(2)Delta u + (1 - vertical bar u vertical bar(2))u = 0 in Omega, as epsilon ...
-
(IOP, 2020)Stars that escape globular clusters form tidal tails that are predominantly shaped by the global distribution of mass in the Galaxy, but also preserve a historical record of small-scale perturbations. Using deep grz ...
-
(Elsevier Ltd, 2019)© 2018 COSPARWe report the existence of rapid variations in (effective) geomagnetic cutoff rigidity (Rc) between the equatorial and Antarctic zones adjacent to the Andes Mountains, revealed by the variation rate of geomagnetic ...
-
(Universidad de Chile, 2014)El propósito del presente trabajo es formular una herramienta computacional de bajo costo que determine la potencia y la expansión de flujo de turbinas eólicas de eje vertical (VAWTs) tipo Darrieus. Esta herramienta puede ...
-
(Springer, 2016)Recurrence properties of systems and associated sets of integers that suffice for recurrence are classical objects in topological dynamics. We describe relations between recurrence in different sorts of systems, study ways ...
-
(SIAM Publicationss, 2020)In this work we introduce for extended real valued functions, defined on a Banach space X, the concept of K directionally Lipschitzian behavior, where K is a bounded subset of X. For different types of sets K (e.g., zero, ...
-
(2010)In this work we introduce for extended real valued functions, defined on a Banach space X, the concept of K directionally Lipschitzian behavior, where K is a bounded subset of X. For different types of sets K (e.g., zero, ...
-
(Springer New York LLC, 2019)This paper summarizes the development of Veamy, an object-oriented C++ library for the virtual element method (VEM) on general polygonal meshes, whose modular design is focused on its extensibility. The linear elastostatic ...
-
(Institute of Electrical and Electronics Engineers Inc., 2019)© 1982-2012 IEEE. The modular multilevel matrix converter (M 3 C) is an ac-to-ac converter topology suitable for the control of high-power variable-speed drives. The control of this converter is complex, particularly when ...
-
Vector Lyapunov-like functions for multi-order fractional systems with multiple time-varying delays (Elsevier, 2020)In this paper, a general method to establish the asymptotic behaviour of solutions to multi-order multiple time-varying delays nonlinear systems is proposed. The method, relying on vector Lyapunov-like functions and on ...
-
(Elsevier, 2010)This paper proposes a method for reducing the number of search nodes involved in the solution of queries arriving to a Web search engine. The method is applied by the query receptionist machine during situations of sudden ...
-
(2007)Boundary value problems for systems of ordinary differential equations are studied. These systems involve asymptotically homogeneous operators. Leray-Schauder indices are calculated for these operators and the concept of ...
-
(Universidad de Chile, 2017)El alcoholismo es un grave problema socio-económico. El costo asociado al abuso del alcohol se ha estimado en 1.300 millones de dólares para la economía chilena y en 185 billones para Estados Unidos, costo que se debe ...
-
(EDP Sciences, 2016)Context. The B-W method is used to determine the distance of Cepheids and consists in combining the angular size variations of the star, as derived from infrared surface-brightness relations or interferometry, with its ...