After presenting results of recent impulse-noise measurements in customer premises, a proposal for a simplified statistical model for impulse noise is presented. The new model is intended to replace the deterministic single impulse, widely known as Cook Pulse, especially in the upcoming standards for SDSL and also maybe VDSL. In addition to the statistical model also herein, sample impulses are...

Because numerical simulations with classical Johnson-Cook formulation of explosively formed projectiles induce non representative projectiles, a modified Johnson-Cook model taking into account the thermally activated and viscous regimes as well as the notion of saturation stress in the 10 s regime has been developed. Using both models, numerical experimental comparisons of Taylor and explosivel...

We study dating behavior using data from a Speed Dating experiment where we generate random matching of subjects and create random variation in the number of potential partners. Our design allows us to directly observe individual decisions rather than just final matches. Women put greater weight on the intelligence and the race of partner, while men respond more to physical attractiveness. More...

One of the most important benefits of the qualitative-quantitative &bate in evaluation has been the increased awareness it has brought evaluators about philosophy of science. But evaluators are rarely philosophers, and consequently their presentations of philosophical material may contain errors. This article highlights thirteen common errors of this kind, and discusses some implications of the...

Trade between China and African countries has dramatically increased in recent years, at an unprecedented rate. At the same time, robust economic growth in Sub-Saharan African countries has accompanied this trade boom. The question remains however, whether or not trade with China has actually induced this growth. Furthermore, recent media reports have suggested that Africa’s trade with China ma...

One of the most important benefits of the qualitative-quantitative &bate in evaluation has been the increased awareness it has brought evaluators about philosophy of science. But evaluators are rarely philosophers, and consequently their presentations of philosophical material may contain errors. This article highlights thirteen common errors of this kind, and discusses some implications of the...

The evolution of the structure factor is studied during the phase-ordering dynamics of the kinetic Ising model with conserved order parameter. A preasymptotic multiscaling regime is found as in the solution of the CahnHilliard-Cook equation, revealing that the late stage of phase-ordering is always approached through a crossover from multiscaling to standard scaling, independently from the natu...