IPM Calendar 
Friday 20 September 2019   Today  
Events for day: Wednesday 04 September 2019    
  • Weekly Seminar
    Light and Silicon: from Detectors to Sustainable Production of Energy and Fuel
  • School
    PARTICLES AND ACCELERATORS

    Abstract: Silicon has played a vital role in improving the quality of human life in the past few decades. It is the main constituent of devices such as processors and consumer electronics. Silicon devices with a p-i-n structure have been essential for capturing light and radiation in detectors uses in CMS experiment, optical communications, and optical interconnects in data centers. This device concept is the underlying principle of silicon photovoltaic devices for electricity generation. In the first part of my presentation, I discuss silicon photovoltaic technologies with a focus on the record-holding silicon heterojunction technology that ...

               13:30 - 15:00     Weekly Seminar
    A challenge for the standard evolutionary mechanisms in disc galaxies

    School
    ASTRONOMY

    The peculiar photometric, kinematics and populations properties of NGC7457, a low-mass lenticular galaxy in the filamentary group NGC 7331, pose a challenge to the most of generally-accepted scenarios of formation and evolution in disc galaxies. To better understand the peculiar behaviour of this galaxy, for the first time, we constructed the Schwarzschild orbit-based models of this system that succeeded in putting together all puzzle pieces of peculiar observed properties of NGC 7457. The reconstructed dynamical model of this galaxy clearly shows the orbital distribution of stars is dominated by warm (thick disc) and hot orbits (bulge) with ...

               14:00 - 15:00     Weekly Seminar
    Condensed Matter and Statistical Physics Group
    Flow of Fluids with Complex Rheology

    School
    PHYSICS

    Seminar Room (classroom A), Farmanieh Building, IPM ...

               14:00 - 15:00     Weekly Seminar
    Flow of Fluids with Complex Rheology

    School
    NANO SCIENCES

    Flow of Fluids with Complex Rheology

    Abstract:

    The dissipative nonlinear system, such as those encountered in the fluid dynamics, can be reach an unstable state when the parameters that measuring the nonlinearity become important. For instance, parallel shear flows of Newtonian fluids are turbulent when the ratio of the nonlinear inertial term to the viscous dissipative term, i.e. Reynolds number, is sufficiently important. Adding a small amount of polymer to a Newtonian solvent introduces the non-linear effects and promotes the appearance of instabilities even at low Reynolds number. The purpose of this ta ...

               15:00 - 16:00     Weekly Seminar
    Evolution of electromagnetic fields in the QGP

    School
    PARTICLES AND ACCELERATORS

    Abstract: In heavy-ion collisions, extremely large electromagnetic fields are produced by fast-moving charged nucleons. They are sufficiently large to affect the low energy QCD processes and thus produce observable effects, whose occurrence is, however, directly related to the lifetime of these fields. In this talk, the evolution of electromagnetic fields in the QGP phase is discussed. For this aim, I present some analytical solutions to the equations of relativistic magnetohydrodynamics (RMHD). In particular, I argue that the role of the electric field in the QGP may be underestimated. Besides, I show that in certain setups the evolution of ...