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This paper presents the response of the ionosphere during the intense geomagnetic storms of October 12-20, 2016 and May 26-31, 2017 which occurred during the declining phase of the solar cycle 24. Total Electron Content (TEC) from GPS…

Space Physics · Physics 2023-02-02 Sumanjit Chakraborty , Sarbani Ray , Dibyendu Sur , Abhirup Datta , Ashik Paul

The global stratification and circulation of the ocean and their sensitivities to changes in forcing depend crucially on the representation of the mesoscale eddy field. Here, a geometrically informed and energetically constrained…

Atmospheric and Oceanic Physics · Physics 2018-11-14 Julian Mak , James R. Maddison , David P. Marshall , David R. Munday

A novel geomechanics concept is presented for studying the behavior of geomaterials and structures by capturing the underlying dynamics as realistically as possible for earthquake excitation applied in time domain. Enormous amount of…

Computational Engineering, Finance, and Science · Computer Science 2019-11-21 Achintya Haldara , J. Ramon Gaxiola Camachob , Hamoon Azizsoltanic , Francisco J. Villegas-Mercadoa , S. Mohsen Vazirizadea

Gauge fields provide the fundamental interactions in the Standard Model of particle physics. Gauge field configurations with nontrivial topological windings are known to play crucial roles in many important phenomena, from…

High Energy Physics - Phenomenology · Physics 2023-04-10 Anping Huang , Shuzhe Shi , Shu Lin , Xingyu Guo , Jinfeng Liao

Seismo-ionosphere coupling processes have been investigated considering the GPS observed anomalous ionospheric Total Electron Content (TEC) variations before strong earthquakes as their precursors. The numerical simulations' results of the…

Geophysics · Physics 2012-05-03 M. I. Karpov , O. V. Zolotov , A. A. Namgaladze

We use coordinated Hinode SOT/EIS observations that include high-resolution magnetograms, chromospheric and TR imaging and TR/coronal spectra in a first test to study how the dynamics of the TR are driven by the highly dynamic photospheric…

A graphene field effect transistor, where the active area is made of monolayer large-area graphene, is simulated including a full 2D Poisson equation and a drift-diffusion model with mobilities deduced by a direct numerical solution of the…

Applied Physics · Physics 2021-09-01 Giovanni Nastasi , Vittorio Romano

A detailed electrical characterization of high-performance bow-tie InGaAs based terahertz detectors is presented along with simulation results. The local surface potential and tunnelling current were scanned over the surfaces of the…

The induction of electric currents in electric power distribution networks is a well-known effect of Earth-directed eruptive events. Inspired by recent studies showing that the rate of power-grid anomalies may increase after exposure to…

Space Physics · Physics 2022-11-16 Tatiana Vybostokova , Michal Svanda

Windstorms significantly impact the UK, causing extensive damage to property, disrupting society, and potentially resulting in loss of life. Accurate modelling and understanding of such events are essential for effective risk assessment and…

Atmospheric and Oceanic Physics · Physics 2024-09-18 Etron Yee Chun Tsoi

We have directly measured coherent high-frequency magnetization dynamics in ferromagnet films induced by a spin-polarized DC current. The precession frequency can be tuned over a range of several gigahertz, by varying the applied current.…

Condensed Matter · Physics 2009-11-10 W. H. Rippard , M. R. Pufall , S. Kaka , S. E. Russek , T. J. Silva

In this work, we compare gyrokinetic (GK) and fully kinetic Particle-in-Cell (PIC) simulations of magnetic reconnection in the limit of strong guide field. In particular, we analyze the limits of applicability of the GK plasma model…

Plasma Physics · Physics 2015-08-19 P. A. Muñoz , D. Told , P. Kilian , J. Büchner , F. Jenko

Current global environmental challenges require vigorous and diverse actions in the energy sector. One solution that has recently attracted interest consists in harnessing high-quality variable renewable energy resources in remote…

Atmospheric and Oceanic Physics · Physics 2019-04-03 David Radu , Mathias Berger , Raphaël Fonteneau , Simon Hardy , Xavier Fettweis , Marc Le Du , Patrick Panciatici , Lucian Balea , Damien Ernst

ITER (International Thermonuclear Experimental Reactor) static magnetic field (SMF) test facility requires a DC power supply with low voltage, high current, and high stability. Due to the limitation ofswitching loss, there is a…

Instrumentation and Detectors · Physics 2022-01-13 Xi Deng , Ya Huang , Li Jiang , Ge Gao , Zhengyi Huang , Jie Zhang , Peng Wu

This paper is motivated by the need to enhance today's Automatic Generation Control (AGC) for ensuring high quality frequency response in the changing electric power systems. Renewable energy sources, if not controlled carefully, create…

Systems and Control · Computer Science 2019-02-21 Xia Miao , Qixing Liu , Marija Ilic

Reconstructing the electric field from the measured voltages in an antenna, unfolding the antenna response, comes with several problems. Due to the noisiness of the signal it is often necessary to disregard part of the bandwidth of the…

Data Analysis, Statistics and Probability · Physics 2024-10-15 Simon Strähnz , Tim Huege , Philipp Frank , Torsten Enßlin

Forecasting systems in science must be accurate, physically consistent, and certifiably reliable. Most existing models address prediction, constraint enforcement, and verification separately, limiting scalability and interpretability. We…

Machine Learning · Computer Science 2026-04-28 Regina Zhang , Zongru Li , Honggang Wen , Xiaofeng Liu , Siu-Ming Yiu , Pietro Liò , Kwok-Yan Lam

Seismic intensity prediction from early or initial seismic waves received by a few seismic stations can enhance Earthquake Early Warning (EEW) systems, particularly in ground motion-based approaches like PLUM. While many operational EEW…

Signal Processing · Electrical Eng. & Systems 2024-04-01 Rafid Umayer Murshed , Kazi Noshin , Md. Anu Zakaria , Md. Forkan Uddin , A. F. M. Saiful Amin , Mohammed Eunus Ali

Electric current-induced magnetoresistance oscillations recently discovered in two-dimensional electron systems are analyzed using a microscopic scheme for nonlinear magnetotransport direct controlled by the current. The magnetoresistance…

Mesoscale and Nanoscale Physics · Physics 2007-09-18 X. L. Lei

Magnetic fields have important or dominant effects in many areas of astrophysics, but have been very difficult to quantify. Spectropolarimetry from Ground State Alignment (GSA) has been suggested as a direct tracer of magnetic field in…

Astrophysics of Galaxies · Physics 2019-03-28 Huirong Yan , Cecile Gry , Francois Boulanger , Francesco Leone
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