TR

(redirected from repetition time)
Also found in: Dictionary, Medical, Encyclopedia.

TR

The two-character ISO 3166 country code for TURKEY.

TR

1. ISO 3166-1 alpha-2 code for the Republic of Turkey. This is the code used in international transactions to and from Turkish bank accounts.

2. ISO 3166-2 geocode for Turkey. This is used as an international standard for shipping to Turkey. Each province has its own code with the prefix "TR." For example, the code for Ankara Province is ISO 3166-2:TR-06.
References in periodicals archive ?
is the relative component of the power of additional losses due to the instantaneous reactive power of the three-phase ESS, [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] is the relative mean-square value of the module of the reactive power vector [absolute value of ([??])] calculated in the repetition time period;
7 shows the IAM message transmission time distribution over IP network, with repetition time at 0.5 s.
For workouts in the 30-90 seconds per repetition time frame, the total distance covered should be 1.5 to 2 miles (2,640 to 3,520 yards).
This technique employs standard inversion recovery RF pulses, but interleaves slice acquisitions throughout the inversion time (TI) and repetition time (TR) to reduce scan times.
In mode-locked lasers, the repetition time period is constrained so that it is approximately the round trip time of the optical cavity.
The image sequence included the following: (1) a sagittal and axial PD-weighted turbo spin-echo sequence with fat suppression, a flip angle of 90[degrees], a repetition time of 3000 ms, an echo time of 41 ms, a field of view (FOV) of 170 mm, 20 slices, a 480 x 640-pixel matrix, and a slice thickness of 3 mm; (2) a coronal PD-weighted sequence with fat suppression, a flip angle of 150[degrees], a repetition time of 3500 ms, an echo time of 41 ms, a FOV of 170 mm, 20 slices, a 217 x 320-pixel matrix, and a slice thickness of 3 mm; and (3) a sagittal T1-weighted turbo spin-echo with a repetition time of 579 ms, an echo time of 11 ms, a flip angle of 90[degrees], a FOV of 170 mm, 20 slices, a 480 x 640-pixel matrix, and a slice thickness of 3 mm.
Experimental variations in the imaging parameters were performed in echo time and repetition time. Quantitative analysis consisted of signal-to-noise ratio.
For real-time fMRI applications, mapping the activations within a repetition time makes it possible to interact with fMRI experiments in a much more efficient way [3].
The repetition time of the modulation is typically much slower, because the modulating waveform is at a significantly lower frequency than the RF.