Results 51 to 60 of about 4,561,256 (335)

Spatial Ergodicity of Doppler Characteristics in Polarimetric Ocean Radar Scattering: A Numerical Study

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
This study numerically investigates the spatial ergodicity of Doppler characteristics in polarimetric ocean radar scattering. The full Apel wave spectrum is employed to generate 2-D time-varying sea surfaces that involve all dominant large-scale gravity ...
Jianing Shao, Yanlei Du, Xiaofeng Yang, Longxiang Linghu, Jinsong Chong, Jian Yang   +5 more
doaj   +1 more source

Doppler-shift oscillations in solar spicules [PDF]

Astronomy & Astrophysics, 2007
Consecutive height series of Ha spectra in solar limb spicules taken on the 53 cm coronagraph of Abastumani Astrophysical Observatory at the heights of 3800-8700 km above the photosphere have been analyzed. The aim is to observe oscillatory phenomena in spicules and consequently to trace wave propagations through the chromosphere.
Zaqarashvili, T. V., Khutsishvili, E., Kukhianidze, V., Ramishvili, G.   +3 more
openaire   +2 more sources

Re‐Purposing Sapropterin (Kuvan) for ACTA2‐Related Multisystemic Smooth Muscle Dysfunction Syndrome: A Translational Mechanistic and First‐In‐Human Therapeutic Report

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Multisystemic smooth muscle dysfunction syndrome (MSMDS) is an ultra‐rare, ACTA2‐related disorder characterized by severe cerebrovascular disease, aortic aneurysms, and smooth muscle dysfunction. Using molecular dynamics simulations and in silico drug screening, we identified that sapropterin dihydrochloride (Kuvan) is a candidate capable of ...
Moran Hausman‐Kedem, Noa Bielopolski, Vijai Krishnan, Shane Wald‐Altman, Shelly I Shrian, Omer Bar‐Yosef, Livia Kapusta, Claire Shamber, Patricia L. Musolino, Miguel Weil   +9 more
wiley   +1 more source

Referenceless Doppler Shift and Rate Estimation for Opportunistic Positioning With OneWeb Signals

IEEE Access
We propose a technique for extracting the Doppler shift and its rate from OneWeb’s Ku-band user downlink signals and demonstrate its suitability for opportunistic positioning.
Nabil Jardak, Ronan Adam, Quentin Jault
doaj   +1 more source

Proactive Doppler Shift Compensation in Vehicular Cyber-Physical Systems [PDF]

IEEE/ACM Transactions on Networking, 2017
In vehicular cyber-physical systems (CPS), safety information, including vehicular speed and location information, is shared among vehicles via wireless waves at specific frequency.
Jian Du, Xue Liu, Lei Rao
semanticscholar   +1 more source

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

Arthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos, José Miguel Sequí‐Sabater, Diego Benavent   +2 more
wiley   +1 more source

Dzyaloshinskii-Moriya Interaction as a Consequence of a Doppler Shift due to Spin-Orbit-Induced Intrinsic Spin Current. [PDF]

Physical Review Letters, 2016
We present a physical picture for the emergence of the Dzyaloshinskii-Moriya (DM) interaction based on the idea of the Doppler shift by an intrinsic spin current induced by spin-orbit interaction under broken inversion symmetry.
T. Kikuchi, T. Koretsune, R. Arita, G. Tatara   +3 more
semanticscholar   +1 more source

Doppler Shift Tolerance of Accumulation and Outer Coding in MIMO-PMCW Radar [PDF]

, 2021
Phase-modulated continuous wave (PMCW) has been widely regarded as a promising modulation scheme for radar systems, e.g., in highly automated driving (HAD) applications.
Bekker, Elizabeth, Bhutani, Akanksha, Diewald, Axel, Nuss, Benjamin, Antes, Theresa, Oliveira, Lucas Giroto de, Zwick, Thomas   +6 more
core   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

On the Correlation Between the SAR Backscatter Modulation and Surface Waves Orbital Velocity

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
A challenging effect in the retrieval of ocean surface currents from synthetic aperture radar (SAR) is the so-called wave-induced Doppler velocity. This effect arises from the correlation between the modulation of the normalized radar cross section (NRCS)
Anis Elyouncha, Roland Romeiser
doaj   +1 more source