Zobrazeno 1 - 10
of 255
pro vyhledávání: '"Lotz, S."'
Autor:
McGranaghan, R. M., Thompson, B., Camporeale, E., Bortnik, J., Bobra, M., Lapenta, G., Wing, S., Poduval, B., Lotz, S., Murray, S., Kirk, M., Chen, T. Y., Bain, H. M., Riley, P., Tremblay, B., Cheung, M., Delouille, V.
Three main points: 1. Data Science (DS) will be increasingly important to heliophysics; 2. Methods of heliophysics science discovery will continually evolve, requiring the use of learning technologies [e.g., machine learning (ML)] that are applied ri
Externí odkaz:
http://arxiv.org/abs/2212.13325
Autor:
Lotz, S., Nel, A. E., Wicks, R. T., Roberts, O. W., Engelbrecht, N. E., Strauss, R. D., Botha, G. J. J., Kontar, E. P., Pitna, A., Bale, S. D.
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 density spectra of interplanetary magnetic field fluctuations using {\i
Externí odkaz:
http://arxiv.org/abs/2212.02441
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 networks. To model GICs, ground-based geomagnetic field (B-field) measurem
Externí odkaz:
http://arxiv.org/abs/2203.03976
Autor:
Strauss, R. D., van der Merwe, C., Diedericks, C., Kruger, H., Kruger, H. G., Moloto, K. D., Lotz, S., Mosotho, G. M.
Neutron monitors have been the premier ground-based instruments for monitoring the near-Earth cosmic ray flux for more than 70 years. It is essential to continue with such measurements in order to extend this unique long-term time series. Moreover, w
Externí odkaz:
http://arxiv.org/abs/2107.14289
Publikováno v:
2020 International Conference on Probabilistic Methods Applied to Power Systems (PMAPS)
As reliance on power networks has increased over the last century, the risk of damage from geomagnetically induced currents (GICs) has become a concern to utilities. The current state of the art in GIC modelling requires significant geophysical model
Externí odkaz:
http://arxiv.org/abs/2006.12205
Publikováno v:
21st Power Systems Computation Conference (PSCC 2020)
Typical geomagnetically induced current (GIC) modelling assumes the induced quasi-DC current at a node in the transmission network is linearly related to the local geoelectric field by a pair of network parameters. Given a limited time-series of meas
Externí odkaz:
http://arxiv.org/abs/2004.08837
Publikováno v:
The Proceedings of SAIP2018, the 63rd Annual Conference of the South African Institute of Physics, edited by Prof. Japie Engelbrecht (UFS/2018), pp. 212-217. ISBN: 978-0-620-85406-1
One of the best tools we have in geophysical modelling is the ability to interpolate the horizontal geomagnetic field at the surface of the Earth. This is especially useful in regions, such as southern Africa, where there is a sparse array of absolut
Externí odkaz:
http://arxiv.org/abs/1912.04743
Publikováno v:
The Proceedings of SAIP2017, the 62nd Annual Conference of the South African Institute of Physics, edited by Prof. Japie Engelbrecht (SU/2017), pp. 270-275. ISBN: 978-0-620-82077-6
It has long been known that large grounded conducting networks on the surface of Earth are affected by solar activity and geomagnetic storms. Power networks are such extensive grounded conductors and are susceptible to geomagnetically induced current
Externí odkaz:
http://arxiv.org/abs/1912.04742
Autor:
Sajadifar, S.V., Scharifi, E., Wegener, T., Krochmal, M., Lotz, S., Steinhoff, K., Niendorf, T.
Publikováno v:
In International Journal of Fatigue March 2022 156
Autor:
Scharifi, E., Kahlmeyer, M., Suckau, A., Lotz, S., Sommer, N., Nazarlou, R. Delir, Bailly, D., Weidig, U., Steinhoff, K.
Publikováno v:
In Journal of Advanced Joining Processes November 2024 10