Microscopic characterization of Lévy flights of light in atomic vapors

Lévy flights of photons in hot atomic vapours

Long-Tailed Trapping Times and Lévy Flights in a Self-Organized Critical Granular System

We present a continuous time random walk model for the scale-invariant transport found in a selforganized critical rice pile [K. Christensen et al., Phys. Rev. Lett. 77, 107 (1996)]. From our analytical results it is shown that the dynamics of the experiment can be explained in terms of Lévy flights for the grains and a long-tailed distribution of trapping times. Scaling relations for the expon...

استفاده از نانو ذرات نقره برای نمونه برداری از بخارات سمی جیوه از هوای محیط های صنعتی

Introduction: Mercury is one of the toxic metals that damages the nervous system and kidneys. Therefore, monitoring of mercury vapors in the environments is essential. .Material and Method: A new adsorbent was made from silver nanoparticles on a bed of quartz. The nano-adsorbent was capable for sampling of the trace amounts of mercury vapor from air. In this study, the required mercury vapor ...

Study of occupational exposure to mercury vapors in specialists Students at the Faculty of ‎Dentistry With Cold vapor atomic absorption technique

Introduction: dentists are exposed to mercury vapor due to occupational exposure to amalgam Which can endanger their health. the aim of this study was to measure the concentration of urinary mercury in dental students and the restorative specialists one of the dental schools in Iran in order to determine the effect of mercury vapor on them. Methods: The study population Including 40 dental stu...

Lévy flights and Lévy-Schrödinger semigroups

We analyze two different confining mechanisms for Lévy flights in the presence of external potentials. One of them is due to a conservative force in the corresponding Langevin equation. Another is implemented by Lévy-Schrödinger semigroups which induce so-called topological Lévy processes (Lévy flights with locally modified jump rates in the master equation). Given a stationary probability func...