Development of a one point quadrature EAS solid-shell element
(2004)
Presentation / Conference Contribution
Outputs (2634)
Utilizacao de elementos do tipo ”casca e solido-casca” com extensoes acrescentadas para problemas elasto-plasticos com grandes deformacoes (2004)
Presentation / Conference Contribution
A general purpose one point quadrature shell element based on resultant-stress (2004)
Presentation / Conference Contribution
Some demands on rapid prototypes used as master patterns in rapid tooling for injection moulding (2004)
Journal Article
Injection moulded components are finding vigorously increasing applications in numerous sectors. The flexibility of the process allows complex components to be manufactured in high volumes in fully automated environments. Associated with such compone... Read More about Some demands on rapid prototypes used as master patterns in rapid tooling for injection moulding.
Use of External Magnetic Fields to Reduce Reaction Times in an Immunoassay Using Micrometer-Sized Paramagnetic Particles as Labels (Magnetoimmunoassay) (2004)
Journal Article
The paper presents a rapid immunoassay system capable of quantifying analyte in complex biological and environmental media. Antibody-coated micrometer-sized paramagnetic particles are used as labels in an assay in which they bind quantitatively with... Read More about Use of External Magnetic Fields to Reduce Reaction Times in an Immunoassay Using Micrometer-Sized Paramagnetic Particles as Labels (Magnetoimmunoassay).
Self propagating high temperature synthesis of magnesium zinc ferrites (MgxZn1-xFe2O3): Thermal imaging and time resolved X-ray diffraction experiments (2004)
Journal Article
Spinel ferrites of the form Mg Zn Fe O (x = 0. 0.25, 0.50, 0.75, 1.00) were prepared by self-propagating high-temperature synthesis (SHS) from reactions of iron(III), zinc and magnesium oxides, iron powder and sodium perchlorate. The driving force... Read More about Self propagating high temperature synthesis of magnesium zinc ferrites (MgxZn1-xFe2O3): Thermal imaging and time resolved X-ray diffraction experiments.
Finite time extinction in nonlinear diffusion equations (2004)
Journal Article
We consider a class of degenerate diffusion equations where the nonlinearity is assumed to be singular (non-Lipschitz) at zero. It is shown that solutions with compactly supported initial data become identically zero in finite time. Such extinction f... Read More about Finite time extinction in nonlinear diffusion equations.
Building better nurse scheduling algorithms (2004)
Journal Article
The aim of this research is twofold: Firstly, to model and solve a complex nurse scheduling problem with an integer programming formulation and evolutionary algorithms. Secondly, to detail a novel statistical method of comparing and hence build bette... Read More about Building better nurse scheduling algorithms.
Trajectories of a DAE near a pseudo-equilibrium (2004)
Journal Article
We consider a class of differential-algebraic equations (DAEs) defined by analytic nonlinearities and study its singular solutions. The main assumption used is that the linearization of the DAE represents a Kronecker index-2 matrix pencil and that th... Read More about Trajectories of a DAE near a pseudo-equilibrium.