Skip to main content

Research Repository

Advanced Search

Outputs (64)

How experienced individuals contribute to an improvement in collective performance in ants (2008)
Journal Article
Langridge, E. A., Sendova-Franks, A. B., & Franks, N. R. (2008). How experienced individuals contribute to an improvement in collective performance in ants. Behavioral Ecology and Sociobiology, 62(3), 447-456. https://doi.org/10.1007/s00265-007-0472-5

Certain groups of organisms are capable of improving their collective performance with experience. In a recent study, we demonstrated that, over successive emigrations, colonies of the ant Temnothorax albipennis are able to improve their collective p... Read More about How experienced individuals contribute to an improvement in collective performance in ants.

Pre-processing optimisation applied to the classical integer programming model for statistical disclosure control (2008)
Presentation / Conference Contribution
Staggemeier, A., Serpell, M., Clark, A., & Smith, J. (2008). Pre-processing optimisation applied to the classical integer programming model for statistical disclosure control. . https://doi.org/10.1007/978-3-540-87471-3_3

A pre-processing optimisation is proposed that can be applied to the integer and mixed integer linear programming models that are used to solve the cell suppression problem in statistical disclosure control. In this paper we report our initial findin... Read More about Pre-processing optimisation applied to the classical integer programming model for statistical disclosure control.

Bifurcations of the global stable set of a planar endomorphism near a cusp singularity (2008)
Journal Article
Hobbs, C., & Osinga, H. (2008). Bifurcations of the global stable set of a planar endomorphism near a cusp singularity. International Journal of Bifurcation and Chaos, 18(8), 2207-2222. https://doi.org/10.1142/S021812740802166X

The dynamics of a system defined by an endomorphism is essentially different from that of a system defined by a diffeomorphism due to interaction of invariant objects with the so-called critical locus. A planar endomorphism typically folds the phase... Read More about Bifurcations of the global stable set of a planar endomorphism near a cusp singularity.

Unconstrained springback behavior of Al-Mg-Si sheets for different sitting times (2008)
Journal Article
De Sousa, R. J., Correia, J., Simoes, F., Ferreira, J., Cardoso, R. P., Gracio, J., & Barlat, F. (2008). Unconstrained springback behavior of Al-Mg-Si sheets for different sitting times. International Journal of Mechanical Sciences, 50(9), 1381-1389. https://doi.org/10.1016/j.ijmecsci.2008.07.008

In this work, the springback behavior of the commercial 6022 aluminum alloy in temper aging (T4) is investigated taking into account that the sheets, prior to deformation process, are initially pre-strained and then submitted to various sitting times... Read More about Unconstrained springback behavior of Al-Mg-Si sheets for different sitting times.