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Browsing MACSI - Mathematics Application Consortium for Science & Industry by Title

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  • Vynnycky, Michael; Saleem, S.; Devine, Kevin M.; Florio, B. J.; Mitchell, Sarah L.; O'Brien, Stephen B.G. (The Royal Society, 2017)
    Asymptotic methods are employed to revisit an earlier model for oscillation-mark formation in the continuous casting of steel. A systematic non-dimensionalization of the governing equations, which was not carried out ...
  • Vynnycky, Michael (Elsevier, 2022)
    In this paper, we reassess the local solute redistribution equation (LSRE) of macrosegregation which, since it first appeared in 1960s, has served as a cornerstone for understanding the composition variations that occur ...
  • Dassios, Ioannis K.; Cuffe, Paul; Keane, Andrew (2015)
    Electrical power system calculations rely heavily on the Y_{bus} matrix, which is the Laplacian matrix of the network under study, weighted by the complex-valued admittance of each branch. It is often useful to partition ...
  • Faqeeh, Ali (University of Limerick, 2016)
    Many of the systems we observe in nature, in societies, or in infrastructures are in the form of a network of interacting units. This underlying network structure shapes the behavior of such systems and is an indispensable ...
  • Cellai, Davide; López, Eduardo; Zhou, Jie; Gleeson, James P.; Bianconi, Ginestra (American Physical Society, 2013)
    From transportation networks to complex infrastructures, and to social and communication networks, a large variety of systems can be described in terms of multiplexes formed by a set of nodes interacting through different ...
  • Fowler, Andrew C. (Springer, 2019)
    In this paper we revisit the problem of explaining phase transition by a study of a form of the Boltzmann equation, where inter-molecular attraction is included by means of a Vlasov term in the evolution equation for the ...
  • Dassios, Ioannis K. (Elsevier, 2018)
    In this article, we focus on a generalized problem of linear non-autonomous fractional nabla difference equations. Firstly, we define the equations and describe how this family of problems covers other linear fractional ...
  • Dassios, Ioannis K.; Fountoulakis, Kimon; Gondzio, Jacek (Society for Industrial and Applied Mathematics, 2016)
    In this paper we are concerned with the solution of Compressed Sensing (CS) problems where the signals to be recovered are sparse in coherent and redundant dictionaries. We extend the primal-dual Newton Conjugate Gradients ...
  • Allen, Niamh; Ni Riain, Una; Conlon, Niall; Ferenczi, Annamaria; Martin, Antonio Isidro Carrion; Domegan, Lisa; Walsh, Cathal Dominic; Doherty, Lorraine; O'Farrelly, Cliona; Higgins, Eibhlin; Kerr, Colm; McGrath, Jonathan; Fleming, Catherine; Bergin, Colm (Cambridge University Press, 2021)
    no abstract available
  • O'Brien, Joseph D.; Aleta, Alberto; Moreno, Yamir; Gleeson, James P. (American Physical Society, 2020)
    The Hawkes process has garnered attention in recent years for its suitability to describe the behavior of online information cascades. Here we present a fully tractable approach to analytically describe the distribution ...
  • Vynnycky, Michael; Masuda, Y (American Institute of Physics, 2013)
    The problem of fast viscous steady Rayleigh-Bénard convection in a rectangular enclosure is revisited using asymptotic and numerical methods. There are two generic cases: in the first, there is zero shear stress at all ...
  • Nicoletti, Sara; Fanelli, Duccio; Zagli, Niccolò; Asllani, Malbor; Battistelli, Giorgio; Carletti, Timoteo; Chisci, Luigi; Innocenti, Giacomo; Livi, Roberto (AIP Publishing, 2019)
    A stochastic reaction-diffusion model is studied on a networked support. In each patch of the network, two species are assumed to interact following a non-normal reaction scheme. When the interaction unit is replicated ...
  • Allen, Niamh; Brady, Melissa; Carrion Martin, Antonio Isidro; Domegan, Lisa; Walsh, Cathal Dominic; Doherty, Lorraine; Ni Riain, Una; Bergin, Colm; Fleming, Catherine; Conlon, Niall (Elsevier, 2021)
    Dear Editor, We write in response to correspondence from Whitaker et al. in this Journal (1). The authors demonstrate increases in seropositivity for SARS-CoV-2 antibodies against the spike protein as the roll out of ...
  • Davoren, Martin P.; Hayes, Kevin; Horgan, Mary; Shiely, Frances (BMJ Publishing Group, 2014)
    Objective The burden of sexually transmitted infections (STIs) rests with young people, yet in Ireland there has been very little research into this population. The purpose of this study was to determine the incidence ...
  • Lee, William T.; Kaar, Simon; O'Brien, Stephen B.G. (American Assocation of Physics Teachers, 2018)
    A surprising phenomenon witnessed by many is the sinking bubbles seen in a settling pint of stout beer. Bubbles are less dense than the surrounding fluid so how does this happen? Previous work has shown that the explanation ...
  • Fowler, Andrew C.; McGuinness, Mark J. (Elsevier, 2019)
    We provide an analytic estimate for the size of the bulbs adjoining the main cardioid of the Mandelbrot set. The bulbs are approximate circles, and are associated with the stability regions in the complex parameter μ-space ...
  • Davis, Arran J.; MacCarron, Pádraig; Cohen, Emma (Public Library of Science, 2021)
    There is growing academic, civic and policy interest in the public health benefits of community-based exercise events. Shifting the emphasis from competitive sport to communal activity, these events have wide appeal. In ...
  • Cregan, Vincent; Lee, William T.; Clune, Louise (SpringerOpen, 2017)
    A soft sensor for measuring product quality in the Bayer process has been developed. The soft sensor uses a combination of historical process data recorded from online sensors and laboratory measurements to predict a key ...
  • Kartun-Giles, Alexander P.; Krioukov, Dmitri; Gleeson, James P.; Moreno, Yamir; Bianconi, Ginestra (MDPI, 2018)
    A projective network model is a model that enables predictions to be made based on a subsample of the network data, with the predictions remaining unchanged if a larger sample is taken into consideration. An exchangeable ...
  • O'Brien, Joseph D.; Dassios, Ioannis K.; Gleeson, James P. (IOP Publishing, 2019)
    A model for the spreading of online information or ‘memes’ on multiplex networks is introduced and analyzed using branching-process methods. The model generalizes that of (Gleeson et al 2016 Phys. Rev.X) in two ways. ...

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