A detailed description of the temporal evolution of the thermodynamic fields in heavy ion collisions is presented within a hydrodynamic framework. Particular attention is devoted to the evolution of the collective flow fields and their space-time gradients.

We present a method to compute surface expansion rates from sequences of range data. Towards this end the 3D velocity field (range flow) is extracted first and then used in a second step to estimate the local area expansion. A detailed performance analysis is presented and the method is applied on two real examples.

OBJECTIVES In the absence of symptoms the decision to operate on popliteal artery aneurysms (PA) is often made on PA diameter. Little information exists on growth rate and therefore optimum scanning intervals. The aim of this paper is to define growth rate of PA managed conservatively. METHODS A prospective study of patients with asymptomatic PA was carried out. Patients were invited for ultr...

Skin graft expansion techniques (mesh and micrograft) are widely used, but there is ample evidence that skin graft meshers do not provide their claimed expansion rates. Although this finding might not be new for the majority of surgeons, less is known about surgeons' actual knowledge of expansion rates. The aim of this study was to evaluate the true expansion rates of commonly used expansion te...