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  1. No Access

    Article

    Comparative Study of Boris and He-VPA for a Toroidally Rippled Tokamak

    Numerical schemes such as Boris solver and volume preserving algorithm (VPA) enable efficient calculations of plasma particle trajectories under the influence of electromagnetic and collisional forces. In this...

    Sofia Khalid, Abdullah Zafar, Majid Khan, M. Kamran, M. Ikram in Journal of Fusion Energy (2021)

  2. No Access

    Article

    Fast Ion Trajectory Calculations in Tokamak Magnetic Configuration Using Symplectic Integration Algorithm

    A numerical scheme based on Symplectic Integration Algorithm (SIA) has been used to develop an orbit following code to calculate fast ion trajectories in tokamak magnetic configuration. For the purpose of demo...

    Majid Khan, Abdullah Zafar, M. Kamran in Journal of Fusion Energy (2015)

  3. No Access

    Chapter

    Self-Assembling Structures Based on Hydrogen Bonding Subunits

    Over the past quarter of the century organic chemistry has been widely used as a tool to investigate and mimic biological processes[1]. The closing gap between physical and biological disciplines has lead to t...

    Abdullah Zafar, Andrew D. Hamilton in Current Challenges on Large Supramolecular Assemblies (1999)

  4. No Access

    Chapter

    Hydrogen Bonding Control of Molecular Self-Assembly

    Molecular organization is at the center of all biological processes. The non-covalent interaction of two or more molecular subunits can lead to the formation of large, well-defined and functional molecular agg...

    Ji Yang, Jean-Luc Marendez, Abdullah Zafar… in Supramolecular Stereochemistry (1995)