Model and Full Scale Experiments on Set net. Preliminary

Riser Modal Identification in CFD and Full-Scale Experiments

A systematic methodology is presented to obtain the vortex induced vibrational modes of a riser, based on data from CFD coupled to a long beam under tension and placed in sheared cross-flow; two profiles were tested: (a) linear, and (b) exponential. The modes we estimate are in fact nonlinear equilibria between the flow-induced excitation forces and the structural dynamics and are characterized...

Historic set carries full hausdorff dimension

‎We prove that the historic set for ratio‎ ‎of Birkhoff average is either empty or full of Hausdorff dimension in a class of one dimensional‎ ‎non-uniformly hyperbolic dynamical systems.

Experimental Studies of Scale - Model and Full - Scale IRAs Mounted on Parachutes

We investigate here a number of variations of the Para-IRA, which is an Impulse Radiating Antenna configured for parachute delivery. We consider first two scale models of the Para-IRA with aluminum reflectors, and then we consider a full-scale version built from fabric. In the scale models, we first investigate the effect of using a large F/D ratio in an IRA. We then investigate the effect of u...

Model-scale experiments of symmetric ship collisions

Set-size effects for sampled shapes: experiments and model

The location of imperfections or heterogeneities in shapes and contours often correlates with points of interest in a visual scene. Investigating the detection of such heterogeneities provides clues as to the mechanisms processing simple shapes and contours. We determined set-size effects (e.g., sensitivity to single target detection as distractor number increases) for sampled contours to inves...