References in periodicals archive ?
Ultrasonic devices oscillate files at 25-30 kHz, producing nodes and antinodes along the file, whereas sonic devices such as EA operate at lower frequencies of about 1000 to 6000 Hz, so only one node and antinode occur near the tip (17,18).
The slots must be placed at the antinode locations, where the electric field reaches its maximum, because the waveguide hosts a standing wave.
The chosen impact position is very close to the antinode of the first vibrational mode: as a result, this mode is much more energetic than other recorded modes, showing a difference of nearly 40 dB which can intensely affects the optimal performance of modal shapes reconstruction techniques.
It is understood that flexural waves generated in the pole would cause it to break at the antinode, where the curvature is maximum.
A maximum signal, therefore, indicates a pressure antinode (a displacement node) and a minimum signal indicates a pressure node (a displacement antinode).
The cavity length has been chosen to be 1.5 [lambda] with the three quantum wells centered at the antinode of the laser optical field standing wave and the cavity radius has been taken as 5 [micro]m.
In case of fundamental wavelength there is an antinode in the middle of the pipe length where the displacement amplitude is maximal.
We can account for proposals of (as regards the antinode): a collinear spin AF order [132], an AF quantum critical point [133,134], and a 1D charge stripe order [132,135] with the addition of a smectic phase [136].
Wu, "Enhancing light outcoupling of organic light-emitting devices by locating emitters around the second antinode of the reflective metal electrode," Applied Physics Letters, vol.
Figures 4 and 5 show that: (1) in terms of the current amplitudes, each current among [i.sub.1]-[i.sub.8] has both one antinode and two troughs, which is similar to the characteristics of standing waves; (2) the distribution of the phases of [i.sub.1]-[i.sub.8] suggests that each current distributes along y direction (Figure 3).
This stimulation causes a rhythmic fluttering of the slab, and a friction tip placed at the resonance's antinode performs a quasi-elliptical nanoscale motion.