Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 19635-19654 of 20253
-
(SPRINGER/PLENUM PUBLISHERS, 2008-04)Three new coordination complexes of Zn(II) and Mn(II) have been synthesised using two different tridentate N,N,O donor hydrazone ligands, Hpbh and Hacpbh respectively. The complexes [Zn(pbh)2] (1) and [Zn (acpbh)2] (2) ...
-
(Institute of Electrical and Electronics Engineers Inc., 2018)The Block Tree (BT) is a novel compact data structure designed to compress sequence collections. It obtains compression ratios close to Lempel-Ziv and supports efficient direct access to any substring. The BT divides the ...
-
(2009)Term-partitioned indexes are generally inefficient for the evaluation of conjunctive queries, as they require the communication of long posting lists. On the other side, document-partitioned indexes incur in excessive ...
-
(ELSEVIER, 2003-10)A two-dimensional dynamic model for bioleaching of secondary copper minerals from a pile has been developed. In the model. aeration of the pile is considered to be due to natural convection caused by the density gradient ...
-
(ACADEMIC PRESS INC ELSEVIER SCIENCE, 2006-12-01)We consider the problem of Ambrosetti-Prodi type [GRAPHICS] where Q is a bounded, smooth domain in R-2, phi(1) is a positive first eigenfunction of the Laplacian under Dirichlet boundary conditions and h is an element ...
-
(2006-07-15)We consider the two-dimensional motion of a rigid structure immersed in an incompressible fluid governed by Navier-Stokes equations. The control force acts on a fixed subset of the fluid domain. We prove that our system ...
-
Two-dimensional nanomaterials for the removal of pharmaceuticals from wastewater: a critical review (MDPI, 2021)The removal of pharmaceuticals from wastewater is critical due to their considerable risk on ecosystems and human health. Additionally, they are resistant to conventional chemical and biological remediation methods. ...
-
(American Institute of Physics, 2020)Two-dimensional arrays of coupled waveguides or coupled microcavities allow us to confine and manipulate light. Based on a paradigmatic envelope equation, we show that these devices, subject to a coherent optical injection, ...
-
(IEEE-Inst Electrical Electronics Engineers, 2021)The aim of Neuroevolution is to nd neural networks and convolutional neural network (CNN) architectures automatically through evolutionary algorithms. A crucial problem in neuroevolution is search time, since multiple ...
-
Two-stage robust UC including a novel scenario-based uncertainty model for wind power applications (Elsevier, 2015)The complex processes involved in the determination of the availability of power from renewable energy sources, such as wind power, impose great challenges in the forecasting processes carried out by transmission system ...
-
(IOP, 2020)The Cosmology Large Angular Scale Surveyor (CLASS) is a telescope array that observes the cosmic microwave background (CMB) over 75% of the sky from the Atacama Desert, Chile, at frequency bands centered near 40, 90, 150, ...
-
(IOP Publishing, 2017-06-01)We investigate the star formation properties of a large sample of similar to 2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z similar to 3 in the Chandra COSMOS Legacy Survey in order to ...
-
(Universidad de Chile, 2020)El tipado de seguridad para control de ujos de información previene que información con- dencial sea liberada hacia canales públicos. La propiedad fundamental de control de ujos de información, conocida como ...
-
(Schloss Dagstuhl- Leibniz-Zentrum fur Informatik GmbH, Dagstuhl Publishing, 2017)Information-flow security typing statically prevents confidential information to leak to public channels. The fundamental information flow property, known as noninterference, states that a public observer cannot learn ...
-
(Elsevier, 2016)We construct new ancient compact solutions to the Yamabe flow. Our solutions are rotationally symmetric and converge, as t -> -infinity, to two self-similar complete noncompact solutions to the Yamabe flow moving in opposite ...
-
(The American Astronomical Society, 2013)We describe observed properties of the Type Iax class of supernovae (SNe Iax), consisting of SNe observationally similar to its prototypical member, SN 2002cx. The class currently has 25 members, and we present ...
-
(IOP Publishing, 2019)We investigate the effect of mixing of radioactive nickel (Ni-56) on the early-time color evolution of Type Ib and Ic supernovae (SNe Ib/Ic) using multigroup radiation hydrodynamics simulations. We consider both helium-rich ...
-
(2001-06-01)We present a study of the Type Ic supernova (SN) 1990B that includes most of the observations obtained from around the world. The combined data set comprises 84 BV (RI)c photometric points spanning approximately 360 days ...
-
(Walter de Gruyter GMBH, 2018)We construct new type II ancient compact solutions to the Yamabe flow. Our solutions are rotationally symmetric and converge, as t -> -infinity, to a tower of two spheres. Their curvature operator changes sign. We allow ...
-
(Springer Verlag, 2019)We consider the Cauchy problem for the energy critical heat equation {ut=Δu+|u|4n−2uinRn×(0,T)u(⋅,0)=u0inRn in dimension n = 5. More precisely we find that for given points q 1 ,q 2 ,..,q k and any sufficiently small T ...
