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Investigation of the new optical soliton solutions to the (2+1)-dimensional calogero-bogoyavlenskii schiff model.
Sci Rep
December 2024
Department of Mathematics and Statistics, College of Science, Taif University, 11099, 21944, Taif, Saudi Arabia.
In this work, we use the ansatz transformation functions to investigate different analytical rational solutions by symbolic computation. For the (2+1)-dimensional Calogero-Bogoyavlenskii Schiff (CBS) model, we derive a variety of rational solutions, such as homoclinic breather solutions (HBs), M-shaped rational solutions (MSRs), periodic cross-rationals (PCRs), multi-wave solutions (MWs), and kink cross-rational solutions (KCRs). Their dynamic is shown in figures by selecting appropriate values for the pertinent parameters.
View Article and Find Full Text PDFInsights into earthquake-induced tsunamis in the Caucasus' largest Lake Sevan.
Sci Rep
December 2024
Institute of Geological Sciences (Laboratory of Geodynamics and Hazardous Geological Processes) of the National Academy of Sciences of the Republic of Armenia, 24a M. Baghramian Avenue, 0019, Yerevan, Armenia.
By leveraging the Okada model, the study makes the first-ever attempt to examine earthquake-induced tsunamis in Lake Sevan, related to the activation of underwater segments of the active Pambak-Sevan-Syunik Fault (PSSF), the largest geological structure in the Republic of Armenia (RA). Situated in the Arabian-Eurasian continental collision zone, the basin of Sevan, the largest freshwater lake in the Caucasus region, is characterized by a variety of geological hazards capable of producing events of inter-related triggering. Among other threats, the lake tsunami hazard has remained unexplored.
View Article and Find Full Text PDFHumanitarian forensic medicine: a systematic review.
Int J Legal Med
December 2024
Department of Forensic Medicine and Toxicology, School of Medicine, National and Kapodistrian University of Athens, 75 Mikras Asias Str. 11527, Goudi, Athens, Greece.
Various concerns relating to international humanitarian law and human rights were risen by natural catastrophes (tsunamis, floods, fires), the Covid-19 pandemic, the epidemic breakouts of Ebola, as well as the significant migrant wave observed in the Mediterranean region. Forensic Medicine has direct interactions with both domestic and international law, and thus is frequently asked to provide solutions for these issues. The term "Humanitarian Forensic Action" (HFA), which refers to the application of forensic science to serve humanitarian endeavors, was created.
View Article and Find Full Text PDFThe Hunga Tonga-Hunga Ha'apai volcanic barometric pressure pulse and meteotsunami travel recorded in several Antarctic stations.
An Acad Bras Cienc
November 2024
Rio de Janeiro State University/LARAMG, Pavilhão Haroldo L. Cunha, Subsolo, Rua São Francisco Xavier, 524, Maracanã, 20550-013 Rio de Janeiro, RJ, Brazil.
The Hunga Tonga-Hunga/Hunga-Ha'apai eruption on January 15, 2022 sent off a plume of ash material up to the stratosphere and triggered a meteotsunami and barometric pressure pulse that rippled through the atmosphere and oceans all around the world. The nature of the volcanic event and its global impacts on the oceans, atmosphere, lithosphere and the cryosphere are a matter of debate. Here we present a first overview of the time travel of the sound atmospheric pressure wave through the Antarctic continent based on in situ measurements, which represented a unique event observed through the polar ice sheet during the instrumental meteorological era.
View Article and Find Full Text PDFPhysical experiments of waves generated by submerged steam eruptions with applications to volcanic tsunamis.
Sci Adv
November 2024
GNS Science, 30 Gracefield Road, Lower Hutt 5010, New Zealand.
The tsunamigenic potential of underwater volcanic eruptions is not well understood, even though eruption-generated tsunamis can be devastating. To address how erupted steam bursts from underwater volcanoes generate tsunamis, we present the experiments, using pressurized steam injected vertically into a water tank. Results over various eruption conditions identify three eruption regimes, namely, shallow-, intermediate-, and deep-water eruptions, according to the combined effects of water depths, source strengths, and source durations.
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