Results 91 to 100 of about 37,425 (308)

Doppler frequency analysis for sound-field sampling with moving microphones

open access: yesFrontiers in Signal Processing
Moving microphones allow for the fast acquisition of sound-field data that encode acoustic impulse responses in time-invariant environments. Corresponding decoding algorithms use the knowledge of instantaneous microphone positions for relating the ...
Fabrice Katzberg   +3 more
doaj   +1 more source

Recent Advances in Stimulated Brillouin Scattering in Integrated Photonics

open access: yesAdvanced Physics Research, EarlyView.
This review systematically surveys recent advances in stimulated Brillouin scattering (SBS) within integrated photonics. It begins by elucidating the fundamental mechanisms of stimulated coupling between photons and acoustic phonons in nanoscale waveguides, enhanced by the photoelastic and moving boundary effects.
Songyue Liu   +8 more
wiley   +1 more source

An Underwater Localization Algorithm for Airborne Moving Sound Sources Using Doppler Warping Transform

open access: yesJournal of Marine Science and Engineering
When an airborne sound source is in rapid motion, the acoustic signal detected by the underwater sensor experiences a substantial Doppler shift. This shift is intricately linked to the motion parameters of the sound source.
Junjie Mao   +6 more
doaj   +1 more source

Christian andreas doppler

open access: yesJournal of the Practice of Cardiovascular Sciences, 2019
CA Doppler described the doppler effect which was a shift in the frequency of light. This theory was later used for multiple applications in electromagnetics, astronomy, physics, aviation and health sciences.
Shivani Vashistha, Soumi Das
doaj   +1 more source

Doppler Shift Tolerance of Typical Pseudorandom Binary Sequences in PMCW Radar. [PDF]

open access: yesSensors (Basel), 2022
Giroto de Oliveira L   +9 more
europepmc   +1 more source

The doppler shift transient field method

open access: yesProgress in Particle and Nuclear Physics, 2001
Abstract A novel method to measure the magnetic moments of subpico-second high-spin states via the precession in a transient magnetic field is proposed, which avoids the uncertainties of delayed side and cascade feedings inherent in heavy-ion compound reactions.
openaire   +2 more sources

Tissue Damage in Rheumatoid Arthritis Is Genetically Linked to Low Peptidylglycine Alpha‐Amidating Monooxygenase Activity in Synovial Fibroblasts

open access: yesArthritis &Rheumatology, EarlyView.
Objective Both susceptibility to, and severity of, rheumatoid arthritis (RA) is associated with the rs26232 C allele. Our primary aim was to identify the biologic mechanism underlying this association. Methods Expression of surrounding genes was compared among rs26232 genotypes.
Kevin J. Sheridan   +12 more
wiley   +1 more source

Integrated Clinical and Proteomic Profiling of CD19 CAR‐T Cell Therapy in Progressive Systemic Sclerosis

open access: yesArthritis &Rheumatology, Accepted Article.
Objective To characterize the clinical, immunologic, and proteomic changes associated with CD19 chimeric antigen receptor T‐cell therapy in patients with progressive systemic sclerosis. Methods Patients with progressive systemic sclerosis received CD19 CAR‐T cell therapy and were followed longitudinally for safety, clinical efficacy, immune ...
Chenhan Jia   +16 more
wiley   +1 more source

Vehicle Localization Using Doppler Shift and Time of Arrival Measurements in a Tunnel Environment. [PDF]

open access: yesSensors (Basel), 2022
Halili R   +6 more
europepmc   +1 more source

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