Event Archive

The interaction of silicon design and progress in communications technologies

A talk on the interaction of silicon design and progress in communications technologies, particularly mobile/wireless devices. Prof Boeck is a member of staff at Berlin University. Georg will be accompanied by Dr Frank Henkel of IMSL. Frank has been involved in a large number of EC funded...

Localised buckling, writhing and cutting of the DNA molecule

Single–molecule tests on DNA in a magnetic tweezer experiment allow the molecule to be stretched and twisted. Under increasing twist the DNA buckles locally and forms a ply (plectoneme) which grows at right–angles to the loading axis. Interpreting this in terms of elastic–rod theory allows the estimation of important parameters...

Experiments on VIV under frequency modulation and at constant Reynold number

Normal vibration modes of a slender beam on elastic foundation with unilateral contact

Nonlinear normal vibration modes of a semi-infinite slender beam on elastic foundation with unilateral contact are addressed using the method of multiple scales.

Experimental unfolding and theoretical model in the transition to complex dynamic of a sagged cable

A good correlation between the experiments and theory allowed to unfold the complex forced dynamics of a sagged cable triggered by a divergence-Hopf codimension two bifurcation.

Catastrophic failures of energetic materials

Molecular Dynamics: Development Experience and General Trends

The Molecular Dynamics (MD) is a vast research field attempting to model natural phenomena on a wide span of length&time scales ranging from atomistic (angstrom: 10-10m) to tissue/material fragment(micrometer:10-6m) length scales as well as from picoseconds (QM/MM simulations) to microseconds (protein folding, membrane protein function) time scales.

Intermingling in ecology

Chaotic dynamical systems with two or more attractors lying on invariant subspaces may, provided certain mathematical conditions are fulfilled, exhibit intermingled basins of attraction: each basin is riddled with holes belonging to basins of the other attractors. In order to investigate the occurrence of such phenomenon in dynamical systems of...

Thermomechanical modelling of shape memory alloys

Gradient plasticity from the bottom up and the top down

"From the bottom up": The basic mechanism of plastic deformation is the generation and motion of dislocations.