The Doppler effect is a phenomenon which relates the frequency of the harmonic waves generated by a moving source with the frequency measured by an observer moving with a different velocity from that of the source. The classical Doppler effect has usually been taught by using a diagram of ...
TheDoppler effectalso occurs for light. However, the Doppler effect of starlight is different from that of sound, because the velocity of the light is constant and the time dilation occurs in thespecial relativitytheory. The Doppler effect of light is expressed as: ...
Doppler effect experiments on resonance materials for rock-like oxide (ROX) fuels were carried out to examine the calculation accuracy in the intermediate neutron spectrum of the Fast Critical Assembly (FCA) of the Japan Atomic Energy Research Institute. This study is the second phase of a series...
Measurements of the transverse Doppler effect have provided important confirmatoryevidence for the validity of Einstein's theory of special relativity (SR)... RJ Buenker - Springer Berlin Heidelberg 被引量: 4发表: 2012年 The transverse technique; a complementary approach to the measurement of first...
An example of the spectrum of sulfur hexafluoride in the 10 μm region, as obtained by tuning a semiconductor diode laser, has already been shown in the middle portion of Figure 20-1. Because of the narrow linewidth and high radiance of the laser, spectra with very high resolution may be...
An example of the pattern applied by the surgeons during the surgery using a non-toxic sterile marker. Full size image Data Availability Results Full size image Vector components The length of the displacement vector and the components of the displacement vector obtained from the DIC analysis and ...
The aims of the study were to evaluate in a population of 288 normal subjects 20 to 80 years old (1) the normal values of the indexes of the mitral flow velocity pattern measured either at the tips of the mitral leaflets or at the annulus; (2) whether there was a significant difference...
Our study shows that for the copropagating probing and driving fields, the gain without inversion doesn't monotonously decrease or increase with the increasement of Doppler width. When the driving field is resonant, at a suitable Doppler width, we can get a maximum value of the gain without in...
For example, in SD-OCT, signal integration is a common way to maintain high signal to noise ratio (SNR). If there is no motion in the sample, the spectral interferogram will be time-invariable. That means the spectrum can be captured without distortion in any time period. The targeted ...
In homodyne detection, the most common measurement in CV systems, we measure one of the two quadratures since we cannot measure both quadratures simultaneously with complete precision, according to the uncertainty principle. The measurement operators are projectors over the quadrature basis |I〉〈I|...