Results 111 to 120 of about 2,764,787 (227)

The Impacts of Tropospheric Gravity Wave‐Generated MSTIDs on Skywaves at Mid‐latitude North American Sector Observed and Modeled Using SuperDARN HF Radars

Radio Science, Volume 61, Issue 9, September 2026.
Abstract Trans‐ionospheric high frequency (HF: 3–30 MHz) response to atmospheric gravity waves (GWs) is studied in the middle‐latitude ionosphere in relation to thunderstorm activity. SuperDARN HF radar observations are compared against the model simulations to quantify the impact of GW‐generated medium‐scale traveling ionospheric disturbances (MSTID ...
S. Chakraborty, P. A. Inchin, S. Debchoudhury, B. Bergsson, M. Zettergren, J. M. Ruohoniemi   +5 more
wiley   +1 more source

Complex sine-Gordon theory: solitons, defects and boundaries [PDF]

, 2008
This thesis presents research into the properties and features of the complex sine- Gordon theory. The CSG theory is a dimensional integrable held theory that admits soliton solutions which carry a Noether charge due to the U(I) invariance of the theory.
Umpleby, James
core  

Optical solitons solution for the perturbed nonlinear Schrödinger’s equation

Partial Differential Equations in Applied Mathematics
In this manuscript, the perturbed nonlinear Schrödinger’s equation (PNLSE) is considered, which has many implications in various fields such as ferromagnetic material, nonlinear optics, and optical fibers.
Nasir Ullah, Aman Ullah, Sajid Ali, Shafiq Ahmad   +3 more
doaj   +1 more source

Exploring the Applicability of Three Popular Models for Predicting the Received Field Strength of HF Sky‐Wave Propagation and Communication

Space Weather, Volume 24, Issue 9, September 2026.
Abstract High‐frequency (HF) radio signals rely on ionospheric reflection and refraction to enable long‐range and transcontinental transmission, making them essential for military command, emergency response, and strategic communications. The received field strength is a key parameter for quantifying propagation conditions and optimizing HF circuit ...
Zhanfeng Zhu, Qiao Yu, Yafei Shi, Cheng Yang, Jieqing Fan, Jian Wang   +5 more
wiley   +1 more source

A Sensitivity Analysis of Flick‐AccuRT, a Coupled Ocean‐Atmosphere Radiative Transfer Model and Input Module

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Radiative transfer (RT) models typically solve the radiative transfer equation separately in either the atmosphere or the ocean, limiting accuracy across the atmosphere‐ocean interface. Here, we employ a coupled scalar discrete ordinate RT model to examine methods for the input of measured inherent optical properties (IOPs) of oceanic ...
Shea Cheatham, Daniel Koestner, Børge Hamre   +2 more
wiley   +1 more source

Solitons in low-dimensional sigma models [PDF]

, 1997
The aim of this thesis is to study topological soliton solutions in classical field theories, called sigma models, on a three-dimensional space. In chapter 1 we review the general field-theoretical framework of classical soliton solutions and exemplify ...
Gladikowski, J., Gladikowski, Jens
core  

Impacts of the GDS 2018 Global Dust Storm on Martian Ionosphere‐Thermosphere Coupling via Atmospheric Tides

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract In this study, we investigate the ionospheric and thermospheric responses to the 2018 Mars global dust storm (GDS 2018) by examining atmosphere–ionosphere coupling through tidal structures. Using Mars Atmosphere and Volatile EvolutioN Neutral Gas and Ion Mass Spectrometer observations, we analyze tidal amplitudes, phases, and inter‐species ...
Noritsugu Nagata, Huixin Liu, Sonal Jain, Scot Rafkin, Victoria Hartwick, Hiromu Nakagawa   +5 more
wiley   +1 more source

Global Characterization of the Compressional Components of Magnetic Wave Activity in Mercury's Foreshock Region

Journal of Geophysical Research: Space Physics, Volume 131, Issue 9, September 2026.
Abstract Mercury's weak intrinsic magnetic field forms a small magnetosphere and thus a bow shock that decelerates the supermagnetosonic solar wind and reflects particles upstream, forming a foreshock in the quasi‐parallel region. This region is populated by backstreaming ions and electrons and associated wave activity.
Kristin Pump, Daniel Heyner, Xochitl Blanco‐Cano, Primož Kajdič, Diana Rojas‐Castillo, Tomas Karlsson, Ferdinand Plaschke   +6 more
wiley   +1 more source

Pre‐Procedural Safety Screening in Diagnostic Imaging Across England: A Freedom of Information Study

Journal of Evaluation in Clinical Practice, Volume 32, Issue 6, September 2026.
ABSTRACT Rationale Patient safety screening forms are a way of identifying medical history and contraindications prior to diagnostic imaging examinations. Current utilisation of patient safety forms and variation in their design is unclear. Aims and Objectives Adopting a pragmatic research approach, we aimed to explore pre‐procedural patient‐completed ...
Martine Ann Mallinson, Bryony Brown, Beverly Snaith   +2 more
wiley   +1 more source

On breathers in affine toda theories [PDF]

, 1995
Oscillating solitonic solutions, the breathers, of affine Toda theory are studied. These breather solutions are constructed from two solitons of the same mass with velocity opposite of each other; by analytically continuing its velocity or rapidity to a ...
Iskandar, Alexander Agustinus Popo
core