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Stochastic Modelling and Geological Aspects of a Gold Mineralisation
Estimation Geometry Gold Mineralization Stochastic Process
2013/3/11
Gold mineralisation is the result of physico-chemical and thermal processes of the earth’s interior. We may view a geological process of gold mineralization as a stochastic process Z(x):x∈D, where D m...
3D geospatial modelling and visualization for marine environment: Study of the marine pelagic ecosystem of the south-eastern Beaufort Sea, Canadian Arctic
GIS Oceanography Visualization Spatial, Modelling Three-dimensional, Interpretation
2014/4/25
Geospatial modelling of the marine pelagic ecosystem is challenging due to its dynamic and volumetric nature. Consequently, conventional oceanographic spatial analysis of this environment is in a 2D e...
Modelling of light driven CO2 concentration gradient and photosynthetic carbon assimilation flux distribution at the chloroplast level
photosynthesis chloroplast CO2 flux Calvin cycle limiting factors
2012/5/3
The steady state of the two-substance model of light driven carbon turnover for the photosynthetic CO2 assimilation rate is presented. The model is based on the nonlinear diffusion equation for a sing...
Which coordinate system for modelling path integration?
navigation geocentric egocentric allothetic idiothetic Neurons and Cognition
2012/5/2
Path integration is a navigation strategy widely observed in nature where an animal maintains a running estimate of its location during an excursion. Evidence suggests it is both ancient and ubiquitou...
Mathematical Modelling of Polarizing GTPases in Developing Axons
Mathematical Modelling of Polarizing GTPases Developing Axons Subcellular Processes
2012/5/2
The aim of this paper is to contribute to the basic understanding of neuronal polarization mechanisms by developing and studying a reaction-diffusion model for protein activation and inactivation. In ...
Computationally efficient methods for modelling laser wakefield acceleration in the blowout regime
Computationally efficient methods modelling laser wakefield acceleration blowout regime Accelerator Physics
2012/4/19
Electron self-injection and acceleration until dephasing in the blowout regime is studied for a set of initial conditions typical of recent experiments with 100 terawatt-class lasers. Two different ap...
Thermal modelling for endocardiac radiofrequency ablation: comparison of hyperbolic bioheat equation and Pennes bioheat equation with finite element method
Finite Element Method hyperbolic heat equation Pennes heat equation radiofrequency ablation theoretical model
2012/4/17
The objectives of this study are to model the endocardiac radiofrequency (RF) ablation procedure and to employ the Hyperbolic Bioheat Equation (HBE), which takes the thermal wave behaviour into accoun...
Analytical Modelling of a Plucked Piezoelectric Bimorph for Energy Harvesting
Analytical Modelling of a Plucked Piezoelectric Bimorph Energy Harvesting Classical Physics
2012/4/19
Energy harvesting (EH) is a multidisciplinary research area, involving physics, materials science and engineering, with the objective of providing renewable sources of sufficient power to operate targ...
Joint spectral-timing modelling of the hard lags in GX 339-4: constraints on reflection models
Joint spectral-timing modelling the hard lags GX 339-4 constraints reflection models
2012/2/23
The X-ray variations of hard state black hole X-ray binaries above 2 keV show 'hard lags', in that the variations at harder energies follow variations at softer energies, with a time-lag \tau dependin...
Modelling supermassive black hole growth: towards an improved sub-grid prescription
Modelling supermassive black hole growth sub-grid prescription
2012/2/24
Accretion onto supermassive black holes (SMBHs) in galaxy formation simulations is frequently modelled by the Bondi-Hoyle formalism. Here we examine the validity of this approach analytically and nume...
Numerical Modelling of the Topographic Wetness Index: An Analysis at Different Scales
Resolution DEM Grid Size Wetness Index
2013/3/7
A variety of landscape properties have been modeled successfully using topographic indices such as topographic wetness index (TWI), defined as ln(a/tanβ), where a is the specific upslope area and β is...
Modelling neutral hydrogen in galaxies using cosmological hydrodynamical simulations
galaxies: evolution: general ?galaxies: luminosity function, mass func-tion ?dark matter ?radio lines: galaxies ?methods: N-body simulations
2011/10/11
The characterisation of the atomic and molecular hydrogen content of high-redshift galaxies is a major observational challenge that will be addressed over the coming years with a new generation of rad...
Oscillations of relativistic axisymmetric tori and implications for modelling kHz-QPOs in neutron-star X-ray binaries
X-rays: binaries – relativity – stars: neutron
2011/10/8
We perform a global linear perturbative analysis, and investigate the oscillation properties of relativistic, non-selfgravitating tori orbiting around neutron stars in the slow rotation limit approxim...
Modelling the helical-flexo-electro-optic effect
helical-flexo-electro-optic effect flexoelectric coupling electric fields
2011/8/18
Abstract: The helical-flexo-electro-optic effect shows interesting in-plane electro-optic switching behaviour due to flexoelectric coupling with applied electric fields. Previous understanding of the ...
Modelling pulsar glitches with realistic pinning forces: a hydrodynamical approach
Modelling pulsar glitches realistic pinning forces hydrodynamical approach
2011/10/17
Although pulsars are one of the most stable clocks in the universe, many of them are observed to 'glitch', i.e. to suddenly increase their spin frequency (\nu) with fractional increases that range fro...