An arrangement for radiation of a radio-frequency field into an examination subject has a local coil unit with a housing. An insulating dielectric material is embodied at least at one part of the housing in order to passively compensate an inhomogeneity of the B1 field that occurs in the ...
Arrangement for radiation of a radio-frequency fieldAn arrangement for radiation of a radio-frequency field into an examination subject has a local coil unit with a housing. An insulating dielectric material is embodied at least at one part of the housing in order to passively compensate an ...
Electromagnetic radiation - Radio Waves, Frequency, Wavelength: Radio waves are used for wireless transmission of sound messages, or information, for communication, as well as for maritime and aircraft navigation. The information is imposed on the electr
It represents a constant damping of the overall system MTF, thus causing higher spatial frequency components of the overall imaging system MTF to be at contrasts below the threshold contrast required at the output, as shown in Fig. 4. IV.B Seeing Limit The resolution impairment caused by the ...
1 for the case of a charged particle interacting with a relativistically intense, plane monochromatic electromagnetic wave, using the Hamilton-Jacobi method. The charged particle motion becomes relativistic when the cyclotron frequency of the particle in the magnetic field of the light wave (...
The effects of quickly creating a plasma around a monochromatic electromagnetic source wave on time scales on the order of a cycle of the wave are investigated. It is found that this results in an upward shifting of the wave frequency, which can be varied by changing of the plasma density....
that arrived from source populations. G-PhoCS uses haplotype data with no filtering for minor allele frequency to model past species demography. For this analysis we used 1000 randomly selected 1 kb long regions throughout the genome; alignments of sequences of these regions from the 10 ...
The functions J(ω, θ) and A(ω, θ) are, of course, different for different bodies, but we see that their ratio is independent of the properties of the body and is a universal function of frequency and direction: J(ω,θ)/A(ω,θ)=ce0(ω) cos θ, which is determined...
These results reveal that the shift of the novel radiation is determined by the frequency of the non-absorption band near the absorption region, and therefore the emission shifts can be modulated by changing the absorption spectrum. When used in fiber lasers, the BPAWR-SACM process may help to...
In this paper, the radiation performances of a multifrequency antenna array (MFAA) which consists oftwo dipoles (1 and 3) that are radiating at 9.57 GHz and other one (dipole 2) radiating at 11.98 GHz arepresented. In order to improve the directivity and to reduce the coupling between the...