Browsing by Title Artículos de revistas
Now showing items 1006-1025 of 7543
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(SOUTH AFRICAN INST MINING METALLURGY, 2006-03)This work evaluates and characterizes the impact of the support size and mining dilution of a block model in the operation and selection of equipment at an open pit mine. An exploratory analysis and geostatistical modelling ...
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(IOP Publishing, 2015)Astrophysical research in recent decades has made significant progress thanks to the availability of various N-body simulation techniques. With the rapid development of high-performance computing technologies, modern ...
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(ACADEMIC PRESS, 2008-07)We say that a square matrix M of order r is a degree matrix of a given graph G if there is a so-called equitable partition of its vertices into r blocks with the following property: For any i and j it holds that a vertex ...
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(Institute of Electrical and Electronics Engineers (IEEE), 2020)Due to the long train marshaling and complex line conditions, the operating modes in heavy haul rail systems frequently change when trains travel. Improper traction or braking operation made by drivers will increase the ...
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Blood flow dynamics and arterial wall interaction in a saccular aneurysm model of the basilar artery (PERGAMON-ELSEVIER SCIENCE LTD, 2006-08)Blood flow dynamics under physiologically realistic pulsatile conditions plays an important role in the growth, rupture and surgical treatment of intracranial aneurysms. This paper describes the flow dynamics and arterial ...
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(JOHN WILEY & SONS LTD, 2008-12-10)Hemodynamics plays an important role in the progression and rupture of cerebral aneurysms. The current work describes the blood flow dynamics and fluid–structure interaction in seven patient-specific models of bifurcating ...
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(Nature Publishing Group, 2019)The Head Positioning in Acute Stroke Trial (HeadPoST) is a pragmatic, international, cluster crossover randomized trial of 11,093 patients with acute stroke assigned to a lying-flat (0°) or sitting-up (head elevated ≥30°) ...
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(The American Astronomical Society, 2014-10-01)We present Hubble Space Telescope (HST) observations of the field of the Type IIb supernova (SN) 2011dh in M51 performed at ≈1161 rest-frame days after explosion using the Wide Field Camera 3 and near-UV filters F225W ...
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(MDPI AG, 2015)Conductance-based (CB) models are a class of high dimensional dynamical systems derived from biophysical principles to describe in detail the electrical dynamics of single neurons. Despite the high dimensionality of these ...
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(Universidad Nacional de Colombia, 2019)This article seeks to analyze Carlos Martinez's doctoral dissertation, Contribution à une étude d'urbanisation de Bogotá, Colombie. To do so, it proposes a critical reading of the document that incorporates its epistemological ...
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(2009-08-10)Using data of three well observed Type II plateau supernovae (SNe II-P), SNe 1987A, 1999em, and 2003hn, and two atmosphere models by Eastman et al. and Dessart & Hillier, we derive calibrations for bolometric corrections ...
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(Taylor and Francis Ltd., 2019)White clover (Trifolium repens L.) seed crops require insects for pollination. Apis mellifera Linnaeus, 1758 are normally placed within fields but other insects might also be contributing additional pollination. To ...
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(John Wiley and Sons Ltd, 2019)During the Late Holocene, important changes can be identified in the social dynamics of hunter-gatherer populations in different regions of the Southern Andes. These transformations are associated with processes of demographic ...
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(Elsevier Ltd, 2018)Averaging aggregation operators analyse a set of data providing a summary of the results. This study focuses on the Bonferroni mean and the induced and heavy aggregation operators. The aim of the work is to present new ...
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(OXFORD UNIV PRESS, 2012-01)Semistatic word-based byte-oriented compressors are known to be attractive alternatives to compress natural language texts. With compression ratios around 30-35%, they allow fast direct searching of compressed text. In ...
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Boreholes plans optimization methodology combining geostatistical simulation and simulated annealing (Elsevier, 2017)Nowadays, the prospection plans have the difficult task of ensuring a more complete and rich characterization of the rock mass for the purpose of optimizing costs and increasing safety in geotechnical projects. Currently, ...
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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), ...
