The results of various studies show significant penetration of atmospheric waves into the ionosphere in all frequency ranges, i.e., acoustic waves, gravity waves, tides, and planetary waves.
It has been found that there is a significant penetration of atmospheric waves into the ionosphere over a wide frequency range.
We need to study the relative importance between (1) direct penetration of atmospheric waves into the thermosphere and then into the ionosphere and (2) electromagnetic coupling from the E- to F-region.
Frequencies around 2 MHz are used for better penetration of ultrasound waves through the bone.
This is because the penetration of electromagnetic waves through any medium is frequency dependent.
However, for larger lesions such as pigmented iris melanoma or lesions with posterior extension, USB was superior in visualising the whole tumour configuration and internal structures because of the better penetration of sound waves versus light energy in heavily pigmented lesions.
Penetration of shorter wave lengths would be very difficult in poor weather conditions," John said.
As the QD sizes reduces, ℓe,f increases rapidly, due to the penetration of electron wave function into the barrier material [24].
Most of the small stem crop farmlands are purple, where double-bounce and surface scattering are equally strong due to the penetration of electromagnetic wave.
One might suppress the penetration of the wave functions by increasing the barrier thickness, but this will inadvertently result into a reduction of the transmission probability and current which in turn will increase the overall resistance of the device.
In order to separate the effect of exactly dielectric irregularities, we assume that the potential well for electrons is rather deep, so that the penetration of the wave functions under the barrier can be disregarded.
