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We carry out a detailed study of the motion of particles driven by a constant external force over a landscape consisting of a periodic potential corrugated by a small amount of spatial disorder. We observe anomalous behavior in the form of subdiffusion and superdiffusion and even subtransport over very long time scales. Recent studies of transport over(More)
M. Khoury,1 A. M. Lacasta,2 J. M. Sancho,1 A. H. Romero,3 and Katja Lindenberg4 1Departament d’Estructura i Constituents de la Matèria, Facultat de Física, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Spain 2Departament de Física Aplicada, Universitat Politècnica de Catalunya, Avinguda Doctor Marañon 44, E-08028 Barcelona, Spain(More)
Transport and diffusion of particles on modulated surfaces is a nonequilibrium problem which is receiving a great deal of attention due to its technological applications, but analytical calculations are scarce. In earlier work, we developed a perturbative approach to begin to provide an analytic platform for predictions about particle trajectories over such(More)
After an unsuccessful search for guidelines to destroy outdated anti-infective products, a procedure was developed for pharmacy that uses currently available biohazardous materials. By using a blood/body-fluid absorbent, an inexpensive waste system was developed to avoid the negative public sentiment caused by use of public landfills and avoid the risk of(More)
The International Energy Agency (IEA), an autonomous agency, was established in November 1974. Its primary mandate was – and is – twofold: to promote energy security amongst its member countries through collective response to physical disruptions in oil supply, and provide authoritative research and analysis on ways to ensure reliable, affordable and clean(More)
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