The formation of rogue waves in shallow water is presented in this Rapid Communication by providing the three lowest-order exact rational solutions to the Korteweg-de Vries (KdV) equation. They have been obtained from the modified KdV equation by using the complex Miura transformation. It is found that the amplitude amplification factor of such waves formed in shallow water is much larger than the amplitude amplification factor of those occurring in deep water. These solutions clearly demonstrate a potential hazard for coastal areas. They can also provide a solid mathematical basis for the existence of abnormally large-amplitude waves in other branches of nonlinear physics such as optics, unidirectional crystal growth, and in quantum mechanics.
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http://dx.doi.org/10.1103/PhysRevE.99.050201 | DOI Listing |
PLoS Comput Biol
December 2024
Department of Biomedical Engineering, Duke University, Durham, North Carolina, United States of America.
Transcranial magnetic stimulation (TMS) is a non-invasive, FDA-cleared treatment for neuropsychiatric disorders with broad potential for new applications, but the neural circuits that are engaged during TMS are still poorly understood. Recordings of neural activity from the corticospinal tract provide a direct readout of the response of motor cortex to TMS, and therefore a new opportunity to model neural circuit dynamics. The study goal was to use epidural recordings from the cervical spine of human subjects to develop a computational model of a motor cortical macrocolumn through which the mechanisms underlying the response to TMS, including direct and indirect waves, could be investigated.
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October 2024
Department of Physics, College of Khurma University College, Taif University, Taif, 21944, Saudi Arabia.
Chaos
October 2024
KLMM, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China.
Chaos
October 2024
Disaster Prevention Research Institute, Kyoto University, Uji, Kyoto 611-0011, Japan.
Chaos
September 2024
School of Mathematics, Key Laboratory of Mathematics for Nonlinear Science, Fudan University, Shanghai 200433, People's Republic of China.
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