The phrase "a number of frequency" is not correct in English and does not convey a clear meaning.
It is likely intended to refer to multiple instances or occurrences of frequency, but the construction is awkward and unclear.
Example: "The study analyzed a number of frequencies to determine the best signal quality."
Alternatives: "several frequencies" or "various frequencies".
QEEG studies suffer particularly from the curse of multiplicity, since, in addition to the common dimensions like dose and time, the qEEG is measured at many locations over the scalp and in a number of frequency bands which inflate the multiplicity by a factor of about 250.
3G based EWAMS (Egyptian Wide Area Monitoring System) is designed and implemented in Egypt through deployment a number of Frequency Disturbance Recorders (FDRs) devices on a live 220 kV/500 kV Egyptian grid to identify the location of tripped generator in the power system.
In Bluetooth-based communications, because the information is spread across a number of frequency channels.
Modern spaceborne atmospheric sounders consist of passive spectrometers that measure spectral radiance intensity in a number of frequency bands.
In a different recently issued patent, Sony developed a means for coding audio signals from a player device, sending a number of frequency signals through your body, and decoding them in wireless headphones.
The frequency dependent models are solved at a number of frequency points, which considers the frequency dependence of internal transformation matrices.
The spectral information received on each sensor is divided into a number of frequencies M larger than the number of sources P, P
Forward simulation studies [ 14, 26- 28] which begin with a number of positively selected sites and evolve towards mutation-selection equilibrium show that linkage affects a number of frequency-based statistics including Tajima's D and heterozygosity.
This report presented a number of frequencies and percentages detailing service uptake by electoral ward, referral and uptake by clinic, hospital or primary care.
Here we contrast the effects of STN stimulation and thereby extrinsically imposed synchronization at a number of frequencies ≤ 20 Hz, to establish whether all such frequencies impair movement and, if so, whether they impair movement in the same way.
