Results 101 to 110 of about 14,072,652 (376)
"An analysis of the classical Doppler Effect"[1] revisited [PDF]
arXiv, 2004 After having shown that the formula which describes the Doppler effect in the general case holds only in the case of the "very high" frequency assumption, we derive free of assumptions Doppler formulas for two scenarios presented in the revisited paper.
arxiv
On the Doppler Effect in a Medium
, 1963 This research was supported by the U. S. Air Force through the Air Force Office of Scientific Research of the Air Research and Development Command, under Contract No. AF49(638)-1266. Reproduction in whole or in part is permitted for any purpose of the United States Government. The author is grateful to Professor C. H. Papas for his continued guidance
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Advanced Photonics Research, EarlyView.This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu +5 more
wiley +1 more source
Null vector fields in spaces with affine connections and metrics. Doppler's effect, Hubble's effect, and aberration's effect [PDF]
arXiv, 2003 The notion of null (isotropic) vector field is considered in spaces with affine connections and metrics as models of space or space-time. On its basis the propagation of signals in space-time is considered. The Doppler effect is generalized for these types of spaces.
arxiv
Advanced Science, EarlyView.This work explores the process of morning awakening of the human brain using polysomnography paired with simultaneous stereo‐electroencephalography, a method that provides high spatial and temporal resolution for examining brain activity. Awakening is characterized by an increase in high‐frequency spectral power and connectivity.
Tamir Avigdor +5 more
wiley +1 more source
Analysis of atherosclerotic plaque distribution in the carotid artery
Clinical Cardiology, Volume 45, Issue 12, Page 1272-1276, December 2022., 2022 Abstract Background The present study was designed to investigate the hypothesis that the outer wall at the carotid bifurcation is the most common area of atherosclerotic plaque deposition due to the low shear stress. Hypothesis We hypothesized that the most common site of arteriosclerosis in carotid arteries is different in the early and late stages ...
Shin‐Seok Yang +2 more
wiley +1 more source
Brazilian Journal of Otorhinolaryngology, 2009 Among the methods for assessing swallowing sounds - videofluoroscopy modified barium study, fiberoptic swallowing endoscopy, neck auscultation through a microphone, accelerometer and, more recently, the Doppler sonar - we have chosen the latter.
Cibele Fontoura Cagliari +3 more
doaj +1 more source
Doppler Effect Associated with the Reflection of Light on a Moving Mirror [PDF]
arXiv, 2005 The Doppler Effect associated with the reflection on a moving mirror is reduced to two Doppler Effect experiments involving the incoming incident ray and the outgoing reflected ray or vice-versa. The dependence of the corresponding Doppler factors on the incidence angle on the stationary mirror.
arxiv
Ethnologia Europaea, 2005 At the last page of the first book Laura Ingalls Wilder wrote on her childhood Little house in the big woods she is lying in bed, while her father plays “Shall Auld Acquaintance be Forgot” on his violin. When the fiddle had stopped singing Laura called out softly, ‘What are days of auld lang syne, Pa?’‘They are the days of a long time ago, Laura’ Pa ...
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Advances in Symbiotic Bioabsorbable Devices
Advanced Science, EarlyView.This review focuses on recent advances in bioabsorbable devices. This review concludes innovation at the material, device, and system levels, the significant advances toward biomedical applications. This review discusses and highlights the challenges and trends in symbiotic bioresorbable electronics, and provides a new direction for the development of ...
Chang Zhu +3 more
wiley +1 more source