Doppler effect - Open Access .click

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Theoretical and experimental clues to a flux of Doppler transformation energies during processes with energy conservation

Open Physics, 2021
In a microscopic model of the photoelectric effect, it becomes clear that the conservation of energy is exclusively determined by Doppler shift processes, i.e., the whole energy of the photon vanishes by means of Doppler redshifts.
Schultheiss Christoph
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A New Approach for Testing Fetal Heart Rate Monitors

Sensors, 2020
In this paper, a new approach for the periodical testing and the functionality evaluation of a fetal heart rate monitor device based on ultrasound principle is proposed.
Daniele Bibbo +10 more
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Line Spectrum Detection Algorithm of Single Vector Sensor Based on Singular Value Difference

Applied Sciences
The line spectrum of ship-radiated noise can be used in passive sonar to detect ship targets; however, it is affected by ocean noise and the Doppler effect, which has a negative effect on target detection. In the paper, the multi-channel data of a single
Xue Han +4 more
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Doppler Stretch and Delay Statistical Performance Comparison for Wideband and Narrowband Signal Model

Известия высших учебных заведений России: Радиоэлектроника, 2018
Narrowband approximation of Doppler effect by a frequency shift is inappropriate for some problems of radiolocation, hydro acoustics or passive location.
I. V. Gogolev
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Velocidade do som no ar e efeito Doppler em um único experimento

Revista Brasileira de Ensino de Física
Esse artigo explica uma modificação do clássico experimento de medida da velocidade do som v s no ar livre pelo metodo de medida de tempo de propagacao de ondas sonoras captados por dois microfones, a fim de obter melhor precisao nas medidas ...
Everton Lüdke +3 more
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FREQUENCY DISCRIMINATOR FOR AIRCRAFT RADIONAVIGATION DOPPLER SYSTEM BASED ON MICROCONTROLLER

Измерение, мониторинг, управление, контроль, 2021
Background. The object of the study is an aircraft radio navigation system. The subject of this research is the methodology for constructing an airborne radio navigation system based on the Doppler effect.
I.V. Aksenov, V.M. Chaikovsky
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Christian andreas doppler

Journal 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
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Manual of Transcranial Doppler Ultrasonography

Korean Journal of Clinical Laboratory Science
Transcranial Doppler (TCD) ultrasound is a crucial non-invasive tool for assessing cerebral blood flow and is widely used to diagnose and monitor cerebrovascular diseases.
Ho Tae JEONG, Soo Na JEON, Sol HAN
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ADCP Discharge Measurements on the River Danube: Post-Processing and Correction of Data

Slovak Journal of Civil Engineering, 2019
Accurate measurements and analyses of river discharges are one of the key tasks of hydrology. Nowadays, the traditional methods of discharge measurements are being supplemented or even replaced by novel approaches that utilize state-of-the-art ...
Výleta Roman, Valent Peter
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The Doppler Effect

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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doppler shift