The phrase "a series of echo" is not correct in standard English; it should be "a series of echoes." You can use it when describing multiple instances of sound reflections or repetitions in a context related to acoustics or metaphorically in literature.
Example: "The canyon was filled with a series of echoes that bounced off the walls, creating a haunting melody."
Alternatives: "a sequence of echoes" or "a chain of echoes."
The arguments — in the virtual salons of the Internet and the actual rooms where movie critics hold their year-end meetings — are perhaps more intense and contentious than ever, but they also seem to take place in a series of echo chambers, sealed off from wider, less specialized conversations.
The theory of synthetic aperture radar (SAR) signal model is briefly introduced which is constructed with a series of echo signals in range direction.
The cells were then scanned using a 3-T clinical MR scanner (Magnetom Trio, A Tim System, Siemens Medical Solutions USA, Inc., Malvern, PA) and a multiecho T2 weighted fast spin echo imaging sequence to collect a series of echo time (TE) dependent data points simultaneously (15 different TE values ranging from 11 to 165 ms).
In Confession Tolstoy hints at the very fictionality of his own autobiography through a series of echoes with his novels.
"Still Life With Photo" (1930) stacks a series of echoing forms charged with domestic meaning into a narrow canvas, setting a relatively realistic sepia-tone family photograph against the sculptural robustness of all else, including a big, colorfully glazed ceramic bowl.
The exhibition operates through a series of echoes, reaching back into the past with about 100 works, from the 16th to the 19th century, featuring destruction and ruin, and radiating out into the present with pieces by several contemporary artists including Mona Hatoum, Michael Rakowitz and Abdessemed.
If you stand in the middle of Lausanne Cathedral in Switzerland and snap your fingers, the sound waves will project outward until they bounce off the stone walls, arches, altars, and statues of the Gothic church, and return, in a series of echoes, to your ears.
They contain ripping acid-house ("Acid Surf"), along with some more idiosyncratic material; "Neon," for example, sounds like a series of echoes resonating from a geometrically implausible cave.
The MV adaptive beamforming algorithm starts with the input matrices which contain unaligned ultrasonic echo signals from a series of ultrasonic echo channels.
T2* mapping is based on a multiple gradient echo (MGE) sequence with a series of 500 echo images with a different TE (range of 2 807 ms); TR is set to 5000 ms, in-plane resolution was 313 × 313 μm2, the slice thickness was 1 mm, the number of excitations was 5; the total acquisition time was 50 min. A ROI was selected corresponding to the sample signal and its SI was plotted versus the image TE.
T2 mapping was based on a multi-slice multi-echo (MSME) sequence with a series of 200 echo images a with different TE (range 5 937.5 ms); TR was set to 5000 ms, in-plane resolution was 313 × 313 μm2, the slice thickness was 1 mm, the number of excitations was 28; the total acquisition time was 13 h.
