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Cascaded rotational Doppler effect [PDF]
We propose and substantiate experimentally the cascaded rotational Doppler effect for interactions of spinning objects with light carrying angular momentum. Based on the law of parity conservation for electromagnetic interactions, we reveal that the frequency shift can be doubled through cascading two rotational Doppler processes which are mirror ...
Deng, Junhong +3 more
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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]
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
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
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On Ultrasonic MTI Measurement of Velocity Profiles in Blood-Flow [PDF]
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
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Aircraft Detection Using Phase-Sensitive Optical-Fiber OTDR
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
The variation of the noise metrics of a group of sound sources due to its movement at a constant velocity along a straight track is discussed in the paper.
Yusuke MAKINO, Yasushi TAKANO
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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
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Simple Experiment of Doppler Effect Using Smartphone Microfon Sensor
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
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A magnitude M7.8 earthquake struck Kermadec Island,New Zealand on March 5,2021. In this study we determined surface wave magnitude using 692 stations from USGS global networks and 112 stations from China global earthquake monitoring system,then analyzed ...
Wenze Deng
doaj +1 more source
Performance analysis of DSSS- and CSS-based physical layer for IoT transmission over LEO satellites
To determine a suitable waveform for Internet of Things (IoT) transmission over low-Earth orbit (LEO) satellites, this paper reports the results of a performance comparison between chirp spread spectrum (CSS)-based LoRa and direct sequence spread ...
Sooyeob Jung +5 more
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