Outputs (2633)

Improvement in collective performance with experience in ants (2004)
Journal Article

We show that entire ant colonies can improve their collective performance progressively when they repeat the same process. Colonies of Leptothorax albipennis can reduce their total emigration times over successive emigrations. We show that this impro... Read More about Improvement in collective performance with experience in ants.

Design and control concepts of a hyper redundant haptic interface for interaction with virtual environments (2004)
Presentation / Conference Contribution

This paper discusses the design concept of a hyper-redundant haptic interface with 10 actuated degreesof- freedom (DOF). The kinematical redundancies allow a significantly larger workspace, while reducing the overall device size. Moreover, an increas... Read More about Design and control concepts of a hyper redundant haptic interface for interaction with virtual environments.

Algorithms for building annular structures with minimalist robots inspired by brood sorting in ant colonies (2004)
Journal Article

This study shows that a task as complicated as multi-object 'ant-like annular sorting' can be accomplished with 'minimalist' solutions employing simple mechanisms and minimal hardware. It provides an alternative to 'patch sorting' for multi-object so... Read More about Algorithms for building annular structures with minimalist robots inspired by brood sorting in ant colonies.

Towards dependable swarms and new discipline of swarm engineering (2004)
Presentation / Conference Contribution

The original shorter paper was given as an invited talk at the SAB '04 workshop on Swarm Robotics. Selected papers were invited to be extended and following further full review were published in this volume in the highly-regarded 'state of the art re... Read More about Towards dependable swarms and new discipline of swarm engineering.

Development of a one point quadrature EAS solid-shell element (2004)
Presentation / Conference Contribution

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.