Results 1 to 10 of about 105,814 (313)
The Doppler Effect and Carnet's Principle [PDF]
Nature, 1914 IN my letter of March 19 I endeavoured to show that the latent heat absorbed in the production of unit volume of stationary vibration of a particular frequency in a mixed beam of radiation, is not equal to 4q/c (where q is the energy stream per sq. cm.
Hugh Longbourne Callendar
openaire +5 more sources
Observation of the Zero Doppler Effect. [PDF]
Sci Rep, 2016 AbstractThe normal Doppler effect has well-established applications in many areas of science and technology. Recently, a few experimental demonstrations of the inverse Doppler effect have begun to appear in negative-index metamaterials. Here we report an experimental observation of the zero Doppler effect, that is, no frequency shift irrespective of ...
Ran J +5 more
europepmc +6 more sources
USE OF DIFFERENT LIBRARIES IN THE ANALYSIS OF THE DOPPLER MEASUREMENTS OF THE SEFOR REACTOR: ASSESSMENT OF THE DOPPLER EFFECT OF THE ASTRID CORE [PDF]
EPJ Web of Conferences, 2021 For the next generation of fast reactors, global objectives are required in terms of safety, sustainability, waste minimization and non-proliferation issues. Concerning safety issues, particular efforts have been made in order to obtain core designs that
Foissy M., Rimpault G., Buiron L.
doaj +1 more source
Anales (Asociación Física Argentina), 2023 In 1904, the Austrian physicist Fritz Hasenöhrl examined by means of mental experiments the black body radiation in a reflecting cavity. By calculating the work required to keep the cavity moving at constant velocity in opposition to the radiation ...
C. M. Figueroa, S. Saracho
doaj +1 more source
Aircraft Detection Using Phase-Sensitive Optical-Fiber OTDR
Sensors, 2021 Aircraft detection plays a vital role in aviation management and safe operation in the aviation system. Phase-Sensitive Optical Time Domain Reflectometry (Φ-OTDR) technology is a prevailing sensing method in geophysics research, structure inspection ...
Yunpeng Cai +4 more
doaj +1 more source
On Ultrasonic MTI Measurement of Velocity Profiles in Blood-Flow [PDF]
Modeling, Identification and Control, 1981 A theoretical analysis of Doppler frequency estimators proposed to be used in ultrasonic MTI measurements of velocity profiles in blood flow, is given. The estimators give an output in form of a single analogue voltage and the relation of the output to ...
Bjørn A.J. Angelsen +1 more
doaj +1 more source
Simple Experiment of Doppler Effect Using Smartphone Microfon Sensor
Jurnal Penelitian Fisika dan Aplikasinya, 2020 Doppler effect is the physical phenomena in which the emitted frequency is a source of change at a time when accepted by the detector due to relative movement of the detector towards the source of the wave or vice versa.
Adam Malik +4 more
doaj +1 more source
Sensors, 2021 Connected objects are deployed all over the world. Thus, they are contributing to improving communications. In urban areas, technological challenges are gradually being overcome, and advances in this area are exponential.
Laurent Ferrier +3 more
doaj +1 more source
International Archives of Otorhinolaryngology, 2013 Sumarry Introduction: Spinocerebellar ataxia (SCA) is a degenerative disease that can cause loss of coordination of voluntary muscle movement such as that required for swallowing.
Edna Márcia da Silva Abdulmassih +2 more
doaj +3 more sources
ENERGY LOSS OF CHARGED PARTICLE ON THE WAVES EXCITATION IN SEMICONDUCTOR CYLINDER WITH TWO-DIMENSIONAL ELECTRON GAS ON THE SIDE SURFACE [PDF]
Радиофизика и электроника, 2015 One of the urgent problems of modern radiophysics is the study of the fundamental properties of solid-state structures that contain nanodimension fragments.
A .V. Dormidontov +2 more
doaj +1 more source