Results 91 to 100 of about 252,409 (330)
Observations of thunder with the Arecibo VHF radar [PDF]
, 1986 An experiment was carried out at the Arecibo Observatory in Puerto Rico in August 1985 to study Doppler velocities in a thunderstorm environment with a beam pointed 2.5 degrees off-vertical.
Holden, D. N., Larsen, M. F.
core +1 more source
Formation Process of a Light Bridge Revealed with the Hinode Solar Optical Telescope
, 2007 The Solar Optical Telescope (SOT) aboard HINODE successfully and continuously observed a formation process of a light bridge in a matured sunspot of the NOAA active region 10923 for several days with high spatial resolution.
Berger, T. E. +12 more
core +1 more source
Observations of Plasma Upflow in a Warm Loop with Hinode/EIS [PDF]
, 2012 A complete understanding of Doppler shift in active region loops can help probe the basic physical mechanism involved into the heating of those loops.
Aschwanden +17 more
core +2 more sources
Advanced Robotics Research, EarlyView.Combining a biomimetic soft‐robot with deep‐learning data analytics sheds light on a unique peripheral dynamics seen in the biosonar system of bats: Bats modulate their ultrasonic biosonar signals upon emission as well as reception with variable, yet highly coordinated motion patterns of their noseleaves and pinnae.
Shuxin Zhang +4 more
wiley +1 more source
Large density amplification measured on jets ejected from a magnetized plasma gun [PDF]
, 2007 Observation of a large density amplification in the collimating plasma jet ejected from a coplanar coaxial plasma gun is reported. The jet velocity is ~30 km s^-1 and the electron density increases from ~10^20 to 10^(22–23) m^-3.
Bellan, Paul M. +2 more
core +1 more source
MODELING SOLAR OSCILLATION POWER SPECTRA. II. PARAMETRIC MODEL OF SPECTRAL LINES OBSERVED IN DOPPLER-VELOCITY MEASUREMENTS [PDF]
The Astrophysical Journal, 2013 We describe a global parametric model for the observed power spectra of solar oscillations of intermediate and low degree. A physically motivated parameterization is used as a substitute for a direct description of mode excitation and damping as these mechanisms remain poorly understood.
Vorontsov, Sergei V. +1 more
openaire +2 more sources
Hard‐Magnetic Soft Millirobots in Underactuated Systems
Advanced Robotics Research, EarlyView.This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang +4 more
wiley +1 more source
APL Photonics, 2023 Laser Doppler velocimetry has developed as a powerful enabling technology within a myriad of realistic scenarios. While existing toolkits that exploit optical vortex allow access to longitudinal linear velocimetry and/or transverse rotational velocimetry
Yanxiang Zhang +3 more
doaj +1 more source
Radar High Resolution Range & Micro-Doppler Analysis of Human Motions [PDF]
, 2009 In radar imaging it is well known that relative motion or deformation of parts of illuminated objects induce additional features in the Doppler frequency spectra.
Ghaleb, A. +3 more
core
Fast reconstruction of 3D blood flows from Doppler ultrasound images and reduced models
, 2020 This paper deals with the problem of building fast and reliable 3D reconstruction methods for blood flows for which partial information is given by Doppler ultrasound measurements.
Galarce, Felipe +3 more
core +3 more sources