TE obtained 5 MHz of frequencies
out of 15 MHz in the 900 MHz frequency band, and the remaining frequencies
were on the 2,100 MHz frequency band.
She's recorded hours of nighttime serenades of intensified, wavering frequencies
(listen at www.
The good component frequencies
vary because the dimensions vary over time as the process changes.
Wong and Tam (1) are correct in stating that their method of calculating mean frequencies
of possible incubation periods for patients with severe acute respiratory syndrome (SARS) is simpler than the method that I presented (2).
The DMA/SDTA 861 e was used to measure the modulus of polychloroprene rubber samples at frequencies
up to 1,000 Hz.
In these patients, emission amplitudes were above the noise floor at all frequencies
between 500 Hz and 8 kHz, and these responses were accepted by the system as valid.
Waves of different frequencies
share "air space" without getting mixed up.
by 3DT) offers air-blown arc-discharge corona equipment, called Arcojet, in a range of frequencies
Increasing clock speeds to 1 GSPS on high-resolution DDS ICs allows our customers to generate higher output frequencies
with improved dynamic performance," said Kevin Kattmann, product line director, High Speed Signal Processing Group, Analog Devices.
FLYING BLIND Mammals can hear higher frequencies
than other creatures can because of the characteristic arrangement of tiny bones in their ears (SN: 5/26/01, p.
of the two oscillators, the reference signal and the offset, must add up to the fixed reference frequency of the cavity.
The noise is spread over a wide range of frequencies
, and the amplitude of the sine waves varies enormously with frequency.