Browsing by Title Facultad de Ciencias Físicas y Matemáticas
Now showing items 3970-3989 of 20501
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(Universidad de Chile, 2016)El trabajo desarrollado en esta memoria nace dentro del rubro de la industria agrónoma, en particular, con la empresa Semillas SZ, que es una empresa chilena dedicada al cultivo y venta de semillas certificadas de papas ...
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(PERGAMON-ELSEVIER SCIENCE LTD, 2005-06)A cross-entropy approach to mapping high-dimensional data into a low-dimensional space embedding is presented. The method allows to project simultaneously the input data and the codebook vectors, obtained with the Neural ...
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(INFORMS, 2011-02)Firms in several markets attract consumers by offering discounts in other unrelated markets. This promotion strategy, which we call “cross-market discounts,” has been successfully adopted in the last few years by many ...
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(ELSEVIER, 2006-12-15)We prove that in a two-dimensional Sandpile automaton, embedded in a regular infinite planar cellular space, it is impossible to cross information, if the bit of information is the presence (or absence) of an avalanche. ...
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(Universidad Católica del Norte, 2020)A partir de los numerosos estudios y hallazgos arqueológicos correspondientes al período de la Colonia (siglos XVI – XIX) en el actual territorio chileno, se ha podido contar con una importante cantidad de información ...
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(2007)A Late Jurassic seafloor remnant of the Rocas Verdes basin in southern Chile, the Sarmiento Complex (ca. 52 degrees S), bears lithological layers with bimodal meta-igneous rocks appropriate for a comprehensive investigation ...
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(European Assoc Geochemistry, 2021)This study combines new noble gas data from fluid inclusions in minerals from Sabancaya, Ubinas, and El Misti (CVZ, Peru) and Villarica (South Chile, SVZ) with a revised noble gas compilation in the Andes, to identify ...
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(ELSEVIER, 2010)We report here the first detailed 2D tomographic image of the crust and upper mantle structure of a Cretaceous seamount that formed during the interaction of the Pacific plate and the Louisville hotspot. Results show ...
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(Elsevier, 2020)In this study, we analyze 100 crustal Precordilleran earthquakes recorded in 2008 and 2009 by 52 broadband seismic stations from the SIEMBRA and ESP, two temporary experiments deployed in the Pampean flat slab region, ...
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(2013)Large-scale surface deformationwas observed at Lazufre volcanic center in the Central Andes of Northern Chile/Northwestern Argentina by means of Interferometric Synthetic Aperture Radar (InSAR). Uplift started there after ...
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(Universidad de Chile, 2018)El Volcán Villarrica es uno de los más activos de los Andes (ciclos de reposo de ~5.3 años), eruptando productos de composiciones basálticas a andesíticas basálticas, con estilos desde hawaiiano a estromboliano vigoroso. ...
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(Elsevier Ltd, 2019)© 2018 Elsevier LtdThe species of the genus Aequiyoldia Soot-Ryen, 1951, previously known as Yoldia, are common, soft-substratum, sareptid bivalves. In the Southern Ocean, Aequiyoldia eightsii (Jay, 1839) was originally ...
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(AMER CHEMICAL SOC, 2006-03-20)The [Os-III(CN)(6)](3-) anion is prepared by chemical oxidation in aqueous solution and isolated as yellow prisms of [Ph4P](3)[OSIII(CN)(6)]center dot 6H(2)O (1). This species crystallizes in the triclinic space group Of ...
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(ELSEVIER SCIENCE SA, 2005-04-15)Four lanthanide coordination polymers formulated as {[La3L9(H2O)(3)](EtOHH2O)-H-.}(n)1,{[Pr2L6(H2O)(2)](HLH2O)-H-.}(n)2,{[Dy2L6(H2O)]0.5HL(.)H(2)O}n 3 and {[Ho2L6(H2O)]0.5HL.H2O}(n) 4 and HL = trans-2-butenoic acid have ...
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(Elsevier Ltd, 2019)The perovskite Gd(Mn0.7Ni0.3)O3 ceramic nanoparticles were synthesized by a facile sol-gel technique. The structure, electronic structure, surface morphology, optical and magnetic properties of GdMn0.7Ni0.3O3 nanoparticles ...
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(Elsevier, 2018)The inhibition of electrons-holes recombination and enhancement of visible light photocatalytic activitywere accomplished by the synthesized TiO2/CS nanocomposites system. In this present work, the differentweight ratio ...
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(Elsevier, 2012)Crystallization of sodium perrhenate (NaReO4) from aqueous solution was studied by means of laboratory scale experiments at 298 K. NaReO4 has a very high solubility in aqueous solution (>1130 g/L at 298 K) so crystallization ...
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(Nature, 2020)The processes and ranges of intensive variables that control magma transport and dyke propagation through the crust are poorly understood. Here we show that textural and compositional data of olivine crystals (Mg/Fe, Ni ...
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(ACM, 2019)
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(GRAZ UNIV TECHNOLGOY, INST INFORMATION SYSTEMS COMPUTER MEDIA-IICM, 2011)
