40 citations
- North-West UniversityZA8 papers
- National Institute for Theoretical PhysicsZA4 papers
- Northumbria UniversityGB2 papers
- University of Cape TownZA2 papers
- University of GlasgowGB2 papers
- University of the Western CapeZA2 papers
- Austrian Academy of SciencesAT1 paper
- Bay Area Environmental Research InstituteUS1 paper
- Br. Birkeland (Norway)NO1 paper
- Centre for Arctic Gas Hydrate, Environment and ClimateNO1 paper
- Centre National de la Recherche ScientifiqueFR1 paper
- Charles UniversityCZ1 paper
15 papers
Existence domains of arbitrary amplitude nonlinear structures in two-electron temperature space plasmas. II. High-frequency electron-acoustic solitons
S. K. Maharaj, R. Bharuthram, S. V. Singh +1
A three-component plasma model composed of ions, cool electrons, and hot electrons is adopted to investigate the existence of large amplitude electron-acoustic solitons not only fo…
Impact of Batch Normalization on Convolutional Network Representations
Hermanus L. Potgieter, Coenraad Mouton, Marelie H. Davel
Batch normalization (BatchNorm) is a popular layer normalization technique used when training deep neural networks. It has been shown to enhance the training speed and accuracy of…
Spectroscopic Imaging of the Sun with MeerKAT: Opening a New Frontier in Solar Physics
Devojyoti Kansabanik, Surajit Mondal, Divya Oberoi +7
Solar radio emissions provide several unique diagnostics to estimate different physical parameters of the solar corona, which are otherwise simply inaccessible. However, imaging th…
The Missing Margin: How Sample Corruption Affects Distance to the Boundary in ANNs
Marthinus W. Theunissen, Coenraad Mouton, Marelie H. Davel
Classification margins are commonly used to estimate the generalization ability of machine learning models. We present an empirical study of these margins in artificial neural netw…
The radial variation of the solar wind turbulence spectra near the kinetic break scale from Parker Solar Probe measurements
S. Lotz, A. E. Nel, R. T. Wicks +7
In this study we examine the radial dependence of the inertial and dissipation range indices, as well as the spectral break separating the inertial and dissipation range in power d…
Adaptations to a geomagnetic field interpolation method in Southern Africa
M. J. Heyns, S. I. Lotz, P. J. Cilliers +1
Space weather and its impact on infrastructure presents a clear risk in the modern era, as evidenced by the adverse effects of geomagnetically induced currents (GICs) in power netw…