Browsing by Author "Constantinou, P."
Now showing items 1-7 of 7
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Article
Copper Binding by Activated Biochar Fibres Derived from Luffa cylindrica
Liatsou, Ioanna; Constantinou, P.; Pashalidis, Ioannis (2017)The adsorption of copper (Cu(II)) from aqueous solutions by activated Luffa cylindrica biochar fibres has been investigated by means of batch equilibrium experiments and FTIR spectroscopy. The effect of various physicochemical ...
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Conference Object
Determination of chlorate in food and water: validation study and analysis of drinking water and food samples
Agapiou, Agapios; Constantinou, P.; Constantinou, D. (2018)
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Article
Finite element analysis of an exponentially graded mesh for singularly perturbed problems
Constantinou, P.; Xenophontos, Christos A. (2015)We present the mathematical analysis for the convergence of an h version Finite Element Method (FEM) with piecewise polynomials of degree p ≥ 1, defined on an exponentially graded mesh. The analysis is presented for a ...
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Article
Finite element approximation of reaction–diffusion problems using an exponentially graded mesh
Constantinou, P.; Franz, S.; Ludwig, L.; Xenophontos, C. (2018)We present the analysis of an h version Finite Element Method for the approximation of the solution to singularly perturbed reaction–diffusion problems posed in smooth domains Ω⊂R2. The method uses piecewise polynomials ...
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Article
An hp finite element method for 4th order singularly perturbed problems
Constantinou, P.; Varnava, C.; Xenophontos, Christos A. (2016)We present the analysis for the hp finite element approximation of the solution to singularly perturbed fourth order problems, using a balanced norm. In Panaseti et al. (2016) it was shown that the hp version of the Finite ...
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Article
An hp finite element method for a 4th order singularly perturbed boundary value problem in two dimensions
Constantinou, P.; Xenophontos, Christos A. (2017)We consider a fourth order singularly perturbed boundary value problem posed in a square and the approximation of its solution by the hp version of the finite element method on the so-called Spectral Boundary Layer mesh. ...
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Article
A mixed hp FEM for the approximation of fourth-order singularly perturbed problems on smooth domains
Constantinou, P.; Franz, S.; Ludwig, L.; Xenophontos, Christos (2019)We consider fourth-order singularly perturbed problems posed on smooth domains and the approximation of their solution by a mixed Finite Element Method on the so-called Spectral Boundary Layer Mesh. We show that the method ...