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Browsing by Author "Greben, JM"

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  • Greben, JM; Elphinstone, CD; Holloway, Jennifer P (Operations Society of South Africa, 2011-09)
    The CSIR has been involved in South African election night predictions since 1999 using a cluster prediction model based on the segmentation of the electorate according to voting behavior. In this paper these clusters are ...
  • Greben, JM; Gledhill, Irvy MA; Cooper, Antony K; De Villiers, R (2010-01)
    The authors examine the question of stability of breakwater structures using the simulation software PhysX. This “physics engine” can be used to construct various packings of breakwater elements, each of which can be used ...
  • Meyer, R; Van Schoor, Abraham M; Greben, JM (2007)
    The theory and application of Nuclear Magnetic Resonance Soundings also referred to as Magnetic Resonance Soundings (MRS) for the exploration of groundwater in porous aquifers has been well developed and tested. To date ...
  • Greben, JM; Elphinstone, E; Holloway, Jennifer P (ORSSA - Operations Research Society of South Africa, 2006-06)
    A novel model has been developed to predict elections on the basis of early results. The electorate is clustered according to their behaviour in previous elections. Early results in the new elections can then be translated ...
  • Cannoo, BR; Gledhill, Irvy MA; Cooper, Antony K; Greben, JM (South African Conference on Computational and Applied Mechanics SACAM08, 2008-03)
    The protection of coastal structures is important to South Africa. The dynamics of breakwaters is a topic that is becoming amenable to numerical study, in terms of the motion of multiple interlocking structures under wave ...
  • Greben, JM; Cooper, Antony K; Gledhill, Irvy MA; de Villiers, R (CSIR, 2008-11)
    The authors have applied various numerical techniques to describe the stability of breakwater structures under the exposure of waves. These studies are intended to get a better understanding of the parameters playing a ...
  • Greben, JM (Elsevier Science B.V, 1991-11)
    This paper originated from the author's dissatisfaction with the way the discrete Fourier transform is usually presented in the literature. Although mathematically correct, the physical meaning of the common representation ...
  • Greben, JM (UKSS, 2009)
    It has become common to describe complexity science as a new approach to many scientific questions that are less amenable to the usual “mechanistic view” of reality in science. However, we believe that the contrast implied ...
  • Greben, JM; Elphinstone, C; Holloway, Jennifer P; De Villiers, R; Ittmann, HW; Schmitz, Peter MU (Acad Science South Africa, 2005-03)
    During the last three elections in South Africa, the CSIR was involved in the prediction of the final outcome on the basis of early results. In this paper, we describe the methods used by the CSIR in these elections and ...
  • Cooper, Antony K; Greben, JM; Van Den Bergh, F; Gledhill, Irvy MA; Cannoo, BR; Steyn, WJVDM; De Villiers, R (South African Conference on Computational and Applied Mechanics SACAM08, 2008-03)
    A variety of armour units are used to protect breakwaters, piers and other harbour infrastructure, serving both to absorb the impact of violent seas and to reduce overtopping. A common type of armour unit is the dolos. ...
  • Greben, JM (2011)
    A new application of quantum field theory is developed that gives a description of the internal dynamics of dressed elementary particles and predicts their masses. The fermionic and bosonic quantum fields are treated as ...
  • Greben, JM (Nova Publishers, 2012-10)
    We consider the solution of the Einstein equations for a universe with a positive cosmological constant (or equivalently possessing a finite uniform vacuum/dark energy density) within a conformal metric, rather than the ...
  • Greben, JM (Springer, 2010-06)
    The author discusses a new theory of the universe in which the vacuum energy is classical origin and dominates the energy content of the universe. As usual, the Einstein equations determine the metric of the universe. ...
  • Greben, JM (2005-08)
    The conference presented, several methods and trend analysis applied to the South African elections. The conference had discussions on trend mix; properties of the resulting trend mix; elimination of negative elements; it ...
  • Cooper, Antony K; de Villiers, R; Greben, JM; van der Bergh, F; Gledhill, Irvy MA (SACAM10, 2010-01)
    A variety of concrete armour units laid on top of rubble mounds are used to protect breakwaters and other harbour infrastructure. Coastal engineers build three-dimensional physical scale models to understand the dynamic ...
  • Greben, JM (2006-07)
    Complexity science is often seen as the science of emerging non-linear phenomena. In this paper the authors discuss some emerging aspects of non-linear solutions in physics. These solutions owe their elegance and simplicity ...
  • Greben, JM (2006-02-28)
    In this paper the author discusses a quantitative theory of trend analysis. Often trends are based on qualitative considerations and subjective assumptions. In the current approach the author makes use of extensive data ...
  • De Beer, Morris; Maina, JW; Van Rensburg, Y; Greben, JM (The Tire Society, 2012-10)
    Optimization of road pavement design, especially towards the surface of the pavement, requires a more rational approach to modeling of truck tire-road contact stresses. Various road surfacing failures are given in this ...
  • De Beer, Morris; Maina, JW; Van Rensburg, Y; Greben, JM (2011-09)
    Optimization of road pavement design, especially towards the surface of the pavement, requires a more rational approach to modeling of truck tire-road contact stresses. Various road surfacing failures are given in this ...
  • Greben, JM; Meyer, R; Kimmie, Zaheed (Elsevier, 2011-10)
    The potential application of MRS technology in locating water bearing fractures in underground mines is studied. The determination of the presence of water ahead of mining is important to prevent accidents and to ensure ...