Results 71 to 80 of about 8,969 (223)
The Non‐Linear Dependence of Daily Maximum Ionospheric Total Electron Content on F10.7
Space Weather, Volume 24, Issue 2, February 2026.Abstract Daily 10.7 cm solar flux, the F10.7 index, is a key parameter for the ionospheric state. Global maps of ionospheric Total Electron Content (TEC) offer almost continuous multidecadal coverage. We find that the global daily maximum of TEC saturates with daily F10.7.
M. A. Cafolla +3 more
wiley +1 more source
GPS Ionospheric mapping and tomography: A case of study in a geomagnetic storm
, 2011 The ionosphere has been normally detected by traditional instruments, such as ionosonde, scatter radars, topside sounders onboard satellites and in situ rocket.
Jin, Rui, Jin, Shuanggen
core +1 more source
Spacecraft VLBI and Doppler tracking: algorithms and implementation [PDF]
, 2012 We present the results of several multi-station Very Long Baseline Interferometry (VLBI) experiments conducted with the ESA spacecraft Venus Express as a target.
Bahamon, Tatiana Bocanegra +5 more
core +1 more source
Space Weather, Volume 24, Issue 2, February 2026.Abstract On 10 May 2024, a severe G5 geomagnetic storm—the most intense of solar cycle 25—significantly disturbed the global ionosphere. This study presents a comprehensive analysis using multi‐instrument observations, including ground‐based measurements from BDS‐GEO total electron content (TEC), digital ionosondes, and magnetometers; model outputs ...
Yue Sun +4 more
wiley +1 more source
Secondary prevention of venous thromboembolic complications. Focus on dabigatrane
Амбулаторная хирургия, 2017 Venous thromboembolic complications (VTEC) are a frequent pathology accompanied by high lethality. After VTEC the risk of their recurrence not equivalent for all patients remains.
V.Y. Bogachev +3 more
doaj
Comparison Analysis Performance Of Honda Jazz Using Active VTec System And Non-Active VTec System Engine [PDF]
, 2012 The objective of this research is to know the influence variable valve timing of engine performance of Honda Jazz. Research uses four stroke engine with two types of engine use active vtec system and engine not active vtec system. Use dynamometer to know
Sanjaya, Dhanil
core
SimInf: An R package for Data-driven Stochastic Disease Spread Simulations [PDF]
, 2018 We present the R package SimInf which provides an efficient and very flexible framework to conduct data-driven epidemiological modeling in realistic large scale disease spread simulations.
Bauer, Pavol +3 more
core +3 more sources
Evolution of Ionospheric Ion Upflow Flux During the April 2023 Geomagnetic Storm
Journal of Geophysical Research: Space Physics, Volume 131, Issue 1, January 2026.Abstract We study the impact of the evolving magnetosphere‐ionosphere‐thermosphere system on upward ion fluxes during the 23–24 April 2023 geomagnetic storm. This storm has a “double‐dip” structure where two southward IMF Bz ${\mathrm{B}}_{z}$ periods cause two dips in the SYM‐H index.
Grace Kwon +4 more
wiley +1 more source
Атеротромбоз, 2020 Oncological disease is one of the most important risk factors for venous thromboembolic complications (VTEC). The treatment of an already confirmed VTEC in an oncological patient is always associated with additional difficulties, which are related to ...
Yu. A. Fedotkina, E. P. Panchenko
doaj +1 more source
Space Weather, Volume 24, Issue 1, January 2026.Abstract The intensified solar maximum of Cycle 25 has heightened space weather risks to Global Navigation Satellite Systems (GNSS), where geomagnetic storms critically challenge Positioning, Navigation, and Timing (PNT) availability. Current wide‐area ionospheric models may fail to resolve extreme latitudinal Total Electron Content (TEC) gradients ...
Tong Liu +5 more
wiley +1 more source