Results 151 to 160 of about 69,955 (288)

Modeling the Time‐Variability of the Ionospheric Electric Potential (TiVIE)

open access: yesSpace Weather, Volume 23, Issue 7, July 2025.
Abstract We present a statistical model of the ionospheric electric potential derived from line‐of‐sight plasma velocity measurements from the Super Dual Auroral Radar Network. Electric potential patterns are produced using an established technique that models the ionospheric electric potential as a spherical harmonic expansion.
M.‐T. Walach, A. Grocott
wiley   +1 more source

Multiple-Doppler Radar Network Design [PDF]

open access: bronze, 1979
Peter S. Ray   +2 more
openalex   +1 more source

Pedestrian and Animal Recognition Using Doppler Radar Signature and Deep Learning. [PDF]

open access: yesSensors (Basel), 2022
Buchman D   +4 more
europepmc   +1 more source

Identifying Wet Troposphere Delay in L‐Band InSAR Using Weather Radar Reflectivity

open access: yesEarth and Space Science, Volume 12, Issue 7, July 2025.
Abstract Synthetic Aperture Radar (SAR) pulses undergo variable propagation delays in the atmosphere due to changes in pressure, temperature, and humidity within the troposphere, causing large error in Interferometric SAR (InSAR) measurements of land surface displacement. Wet troposphere delay, resulting from condensed water and water vapor clouds, can
Talib Oliver‐Cabrera   +4 more
wiley   +1 more source

Deep Space Network Radio Science and Ground‐Based Planetary Radar in the Next Decade

open access: yesRadio Science, Volume 60, Issue 7, July 2025.
Abstract The Deep Space Network (DSN) has been a core operational element of NASA's crewed and robotic exploration of the Solar System since the early 1960s. The primary role of the DSN has been to acquire telemetry and navigation data, but over the years, its radiometric and radar capabilities have expanded to form a system for obtaining unique ...
R. S. Park   +13 more
wiley   +1 more source

Crossbow impact effect on clothing and potential associated injuries

open access: yesJournal of Forensic Sciences, Volume 70, Issue 4, Page 1544-1557, July 2025.
Abstract There has been an increase in crossbow use for hunting practices, sport target shooting, and criminal activity. In the UK, there is minimal legislation surrounding the crossbow. UK law states individuals must be over 18 to buy or possess a crossbow. To date, little experimental research has been conducted, with most of the research focusing on
Richard Critchley   +3 more
wiley   +1 more source

Ultrasound fundamentals and their clinical implications for interventional cytopathologists

open access: yesCytopathology, Volume 36, Issue 4, Page 356-374, July 2025.
Interventional cytopathologists need to know about ultrasound physics and instrumentation to produce an image that faithfully recreates the lesion discovered by the sonographer and diagnosed by the radiologist. A deep quantitative understanding of physics is not required.
David Lieu
wiley   +1 more source

A Practical Separation of Oceanic Vortical and Wavy Motions Entangled in the SWOT Measurements

open access: yesGeophysical Research Letters, Volume 52, Issue 12, 28 June 2025.
Abstract The recently launched Surface Water and Ocean Topography (SWOT) satellite provides an unprecedented two‐dimensional measurement of the sea surface height (SSH) down to the oceanic submesoscale of 1–10 km. Using this measurement to make substantial progress requires the separation of vortical and wavy motions owing to their contrasting ...
Chuanyin Wang   +5 more
wiley   +1 more source

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