• Effect of Thermal Gradients Created by Electromagnetic Fields on Cell-Membrane Electroporation Probed by Molecular-Dynamics Simulations 

  Song, J.; Garner, A.L.; Joshi, R.P. (American Physical Society, 2017)

  The use of nanosecond-duration-pulsed voltages with high-intensity electric fields (∼100 kV/cm) is a promising development with many biomedical applications. Electroporation occurs in this regime, and has been attributed ...

• Particle-in-cell based parameter study of 12-cavity, 12-cathode rising-sun relativistic magnetrons for improved performance 

  Majzoobi, A.; Joshi, R.P.; Neuber, A.A.; Dickens, J.C. (AIP, 2015)

  Particle-in-cell simulations are performed to analyze the efficiency, output power and leakage currents in a 12-Cavity, 12-Cathode rising-sun magnetron with diffraction output (MDO). The central goal is to conduct a parameter ...

• Asymmetric conduction in biological nanopores created by high-intensity, nanosecond pulsing: Inference on internal charge lining the membrane based on a model study 

  Joshi, R.P.; Qiu, H. (AIP, 2015)

  Nanosecond, high-intensity electric pulses have been reported to open rectifying pores in biological cell membranes. The present goal is to qualitatively understand and analyze the experimental current-voltage (I-V) data. ...

• Simulation study of HEMT structures with HfO2 cap layer for mitigating inverse piezoelectric effect related device failures 

  Nagulapally, Deepthi; Joshi, Ravi P.; Pradhan, Aswini (AIP, 2015)

  The Inverse Piezoelectric Effect (IPE) is thought to contribute to possible device failure of GaN High Electron Mobility Transistors (HEMTs). Here we focus on a simulation study to probe the possible mitigation of the IPE ...

• Analysis of high field effects on the steady-state current-voltage response of semi-insulating 4H-SiC for photoconductive switch applications 

  Tiskumara, R.; Joshi, R.P.; Mauch, D.; Dickens, J.C.; Neuber, A.A. (AIP, 2015)

  A model-based analysis of the steady-state, current-voltage response of semi-insulating 4H-SiC is carried out to probe the internal mechanisms, focusing on electric field driven effects. Relevant physical processes, such ...

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