The NovoTTF-100A device is another FDA-approved treatment for recurrent glioblastoma that works by emitting tumour-treating alternating electric fields (TTFields) via two pairs of transducer arrays placed orthogonally on the scalp and acts to perturb tumour cells during mitosis (Kirson et al, 2004, 2007; Gera et al, 2015).
In ships, a modern form of log incorporates a pair of electroacoustic transducers.
This research investigates a Lamb-wave bastructuralural health monitoring approach matching an out-of-phase actuation of a pair of piezoceramic transducers at low frequency.
A pair of ultrasonic transducers mounted on the surface of a test sample were used to propagate ultrasonic pulses of varying frequency while progressively small flexural deformations below yielding were applied.
The laboratory experiments involve a pitch-catch method in which a pair of movable transducers is placed on the outside surface of the structure for generating and recording the wave signals.
A pair of Langevin transducers placed at either end of a beam with either a right-angle V-shaped or Λ-shaped cross-section was used to excite and absorb ultrasonic flexural vibrations transmitted along the length of the beam from one transducer to the other.
The experimenter attached a plastic handle containing a pair of force transducers to one of the SWI stimuli (700g black hollow wooden cubes, weighted with varying amounts of lead: small [5 cmediumedium [7.5 cm3], or large [10 cm3] – see Figure 2a), and placed it on the table.
The SSAW generator is basically a pair of interdigital transducers (IDTs) patterned on a piezoelectric substrate.
Figures 1 and 2 illustrate the working mechanism of our SSAW-based cell coculture platform, which is made by bonding a poly(dimethylsiloxane) (PDMS) microchannel between a pair of interdigital transducers (IDTs) fabricated on a lithium niobate (LiNbO3) piezoelectric substrate.
