In this paper we study a mathematical model of the sequence of memory references generated by a program. This model is an extension of the continuous model proposed in 9]. In the context of an architecture with cache-memories, we derive analytical formulas for the miss ratio and the execution time per instruction. The parameters of these formulas are the cache size, the block size, the associat...

To test whether a prediction algorithm has any true predictive power, it is necessary to compare its performance with that expected under various well-defined null hypotheses. These null hypotheses must include the assumption that the prediction algorithm lacks any true predictive power. In the context of studies investigating the predictability of epileptic seizures, two approaches have been i...

an enhamced scheme is introduced for the solution of two dimensional umsteady euler equations. the finite- volume method of jameson et al. is modified by devicing a pnessune sensor in cell flux calculations. then the discretized gorerning equations ane relaxed in time until na steady state is reached. an appropriate model for the artificial dissipation was also employed. several tests wene cond...

Cross-shore sediment transport is one of the effective factors in erosion and sedimentation, and affects dynamics of the beach profile in coastal areas. Furthermore, sandbar migration due to cross-shore sediment transport mostly effects beach nourishment, displacement of pollutions trapped in sediments, and organism and plants’ lives.  In this manuscript, sandbar migration due to cro...

Ditte Caroline Andersen,1,2,* Charlotte Harken Jensen,1 and Søren Paludan Sheikh1,3 1Laboratory of Molecular and Cellular Cardiology, Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, 5000 Odense C, Denmark 2Clinical Institute/University of Southern Denmark, 5000 Odense C, Denmark 3Institute of Molecular Medicine/University of Southern Denmark, 5000 Odense C, Den...

A three-dimensional Monte Carlo model of the uniform relativistic runaway electron breakdown in air in the presence of static electric and magnetic fields is used to calculate electron distribution functions, avalanche rates, and the direction and velocity of avalanche propagation. We also derive the conditions required for an electron with a given momentum to start an avalanche in the absence ...

Canul-Chay et al. [1] have conducted the segregation experiment of binary granular mixtures in a bed and subjected the bed to vibration. They report that the reverse Brazil-Nut phenomenon (RBNP) was never observed in their experiments and thus conclude that such does not exist. However, we have clearly demonstrated in [2] by Molecular Dynamics simulations that the reverse Brazil-Nut problem not...

In Response to Fakruddin et al. dicted to result in substitutions of amino acids at the and Apostolou et al. corresponding positions in the protein sequence. In each of these cases, individual tumor DNA samples possessed the same sequence as that of the corresponding cell line. We agree with many of the above findings, including To determine if the divergent sequences represented the frequency ...