Now showing items 753-772 of 1990

  • Filtration and transport of heavy metals in graphene oxide enabled sand columns 

    Ding, Zhuhong; Hu, Xin; Morales, Verónica L.; Gao, Bin (Elsevier, 2014-12-01)
    A fixed-bed sand column with graphene oxide (GO) layer was used to remove heavy metals (Cu(II) and Pb(II)) from an aqueous solution injected under steady flow. Due to the time constrained kinetic process of heavy metal ...
  • Finding roots by deflated polynomial approximation 

    Lucas, T. Nigel (Elsevier, 1990)
    A numerical technique is presented which evaluates the roots of polynomials with real coefficients. Features of the method include no complex arithmetic requirements, no need to guess at initial quadratic factor estimates, ...
  • Finding roots of polynomials by using the Routh array 

    Lucas, T. Nigel (Institution of Engineering and Technology, 1996-08)
    A robust method for finding the roots of polynomials using the Routh array is given. Certain multipoint approximation properties of the array are clarified, which enable a simple criterion to be used in the root-finding ...
  • Finite deformation in ideal magnetohydrodynamics 

    MacTaggart, David (EDP Sciences, 2012-06)
    Aims: In this paper we investigate the finite deformation of magnetic fields that can enable one to find complex analytical magnetohydrostatic (MHS) equilibria. These can be used as input to non-linear simulations. Methods: ...
  • First Person Shooter multiplayer game traffic analysis 

    Zhou, Qili; Miller, Colin J.; Bassilious, Victor (Institute of Electrical and Electronics Engineers, 2008-05)
    Internet delay is important for FPS games because it can determine who wins or loses a game. Network traffic for such games has been analysed using packet size and inter-packet time metrics fitting a statistical model. ...
  • The first year in higher education: engagement and empowerment 

    Moir, James (The International Journal of Learning, 2010)
    This paper considers what we mean by referring to empowerment in higher education (HE) with respect to student engagement and persistence (Barnett, 2007, 2009). This is considered from the point of view of how students ...
  • A flexible extended warranty and related optimal strategies 

    Jack, Nat; Murthy, D. N. P. (Palgrave Macmillan, 2007)
    The choice of extended warranties (EWs) currently available to consumers is extremely limited. Their EW purchase decisions have to be made at or very close to the time that they purchase the products and, at this point, ...
  • Flexible time-response matching in discrete model reduction 

    Lucas, T. Nigel (Sage Publications, 2000-08)
    A simple way to match the time responses of the full- and reduced-order models at arbitrary sampling points is given for discrete-time systems. It is seen to be a natural extension of the Padé methods and is particularly ...
  • Flow state in self-paced and externally-paced performance contexts: an examination of the flow model 

    Koehn, Stefan; Morris, Tony; Watt, Anthony P. (Elsevier, 2013-11)
    Kimiecik and Stein's (1992) flow model proposed that personal and situational factors affect the experience of flow. Singer, 1988 and Singer, 2000 argued that different mental processes underlie self-initiated and reactive ...
  • Fluctuation of cognitive-emotional states during competition: an idiographic account 

    Calmeiro, Luis; Tenenbaum, Gershon (Universitat de les Illes Balears Servei de Publicacions, 2007)
    The purpose of this paper is to describe athletes’ cognitive-emotional processes during competitions through an idiographic and ecologically valid study method based on verbal protocols and event sequential analyses. A ...
  • Fluctuation properties of compound Poisson-Erlang Lévy processes 

    Paris, Richard B.; Vinogradov, Vladimir (Serials Publications, 2013-06)
    We derive an expression in terms of the Wright function for the density of the first-passage times (or FPT’s) for the Poisson-Erlang Levy processes. For Poisson-exponential processes, we establish an analogue of Zolotarev ...
  • Flux emergence within mature solar active regions 

    MacTaggart, David (EDP Sciences, 2011-07)
    Aims. Recent insterest in flux emergence within mature active regions has led to several observational studies. Our aim is to model such a scenario and investigate the evolution of the system. Methods. We solve the 3D ...
  • Food for thought: parents' perspectives of child influence 

    Turner, Jason J.; Kelly, James; McKenna, Kirsty (Emerald, 2006)
    Abstract: Purpose – Aims to investigate the influence parents perceive their children have on family food-purchasing decisions and discuss the reasons why parents do not always purchase healthy food products. Design/ ...
  • Football fans in an age of intolerance 

    Waiton, Stuart (Palgrave Macmillan, 2014-05)
    This chapter explores the changing nature of policing at football matches, a change that incorporates two different forms of elitism. The shift, it is argued, relates to a move from traditional conservative snobbery about ...
  • Forensic interviews with children in Scotland: a survey of interview practices among police. 

    La Rooy, David J.; Lamb, Michael E.; Memon, Amina (Springer Verlag, 2011-04)
    The present study surveyed 91 police interviewers in Scottish police forces about their perceptions of how well they adhered to the Scottish Executive (2003) guidelines. Almost all respondents (97%) received the appropriate ...
  • Forensic science evidence in question 

    Redmayne, Mike; Roberts, Paul; Aitken, Colin; Jackson, Graham (Sweet & Maxwell, 2011)
    How should forensic scientists and other expert witnesses present their evidence in court? What kinds and quality of data can experts properly draw on in formulating their conclusions? In an important recent decision in ...
  • A forensically valid comparison of facial composite systems 

    Frowd, Charlie D.; Carson, Derek; Ness, Hayley; Richardson, Jan; Morrison, Lisa; Mclanaghan, Sarah; Hancock, Peter (Routledge, 2005-03)
    An evaluation of E-FIT, PROfit, Sketch, Photofit and EvoFIT composite construction techniques was carried out in a “forensically friendly format”: composites of unfamiliar targets were constructed from memory following a ...
  • Four-wave mixing and edge-enhanced optical correlation in a Ce:KNSBN crystal 

    Liang, Baolai; Wang, Zhaoqi; Guan, Jiuhong; Mu, Guoguang; Cartwright, Colin M. (Optical Society of America, 2000)
    In the case of degenerate four-wave mixing in a cerium-doped potassium sodium strontium barium niobate (Ce:KNSBN) crystal, it is found that the transmission grating is dominant when the incident beams are extraordinarily ...
  • A framework for work-based networked learning 

    McAndrew, P.; MacKinnon, Lachlan M.; Rist, R. (Association for the Advancement of Computing in Education, 2002)
    This article describes the development of a task-based framework for providing learning within the workplace using networked multimedia. A philosophy is adopted for the framework that builds on the recognition that tasks ...