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SUMMARY:ASP Online Seminars: From Nanometers to Magnetospheres: A Scale-In
 variant View of Plasma Dynamics
DTSTART:20260421T130000Z
DTEND:20260421T143000Z
DTSTAMP:20260423T075400Z
UID:indico-event-1640674@indico.cern.ch
CONTACT:ASP-IOC@cern.ch\;wmmoslem@hotmail.com
DESCRIPTION:Speakers: Waleed Moslem (Port Said University & The British Un
 iversity\, Egypt)\n\nAbstract:\n\nPlasmas generally look fully different a
 t very different scales\, but many of their most important dynamical behav
 iors are determined by exactly the same basic physics. Here\, I discuss ho
 w a scale-free\, self-similar description of plasma expansion governs seve
 ral seemingly diverse plasmas: from nanometer-scale surface plasmas to pla
 netary ion outflows. When a plasma is produced by laser–matter interacti
 on\, its subsequent expansion can be described within a self-similar multi
 species fluid framework\, in which ambipolar electrostatic fields drive de
 nsity rarefaction\, ion acceleration\, and the emergence of a leading fron
 t across regimes that differ greatly in scale. For expansion at the nanosc
 ale\, this unified view enables understanding of expansion-driven surface 
 nanopit formation. For multispecies expanding space plasma\, this framewor
 k provides an explanation of the role of ions escaping in the Martian and 
 Venusian upper ionosphere. These results together support the idea that se
 lf-similarity offers not simply a mathematical convenience but a powerful 
 physical connection between laboratory and planetary plasmas.\n \n\nBio o
 f the speaker:\nProfessor Waleed Moslem is a theoretical plasma physicist 
 at Port Said University and is currently serving as a visiting professor a
 t the British University in Egypt. He earned his PhD in 2002 from Mansoura
  University and subsequently received a prestigious fellowship from the Al
 exander von Humboldt Foundation\, conducting research at Ruhr University B
 ochum\, Germany. Professor Moslem has published more than 190 refereed art
 icles in highly ranked journals covering the dynamics of classical\, dusty
 \, and quantum plasmas\, the modeling of nanostructure formation using ion
  beam technology\, and plasma waves and ion escape processes in planetary 
 environments. He has an h-index of 41 and over 5\,000 citations in Web of 
 Science and Scopus. Professor Moslem was an editorial board member in Phys
 ica Scripta (2022-2026). He has been a dedicated peer reviewer for over 50
  renowned international journals and has supervised more than 50 M.Sc. and
  PhD theses. Professor Moslem founded the EGYPlasma Society in 2016\, whic
 h is the first plasma physics society in the Arab world.\n \n\nhttps://in
 dico.cern.ch/event/1640674/
URL:https://indico.cern.ch/event/1640674/
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