The second echo, which is caused by a reflection on the water surface or boat hull, appears from about twice the depth of the first echo and it also attenuates (Fig. 4).
At 7-cm of puncture depth the quality of the echo was tested using four different settings; normal (N), N+automatic tissue optimising (ATO), coded harmonic imaging (CHI), CHI+ATO and at 13-cm of puncture depths six different settings; N, N+ATO, coded excitation (CE), CE+ATO, CHI, CHI+ATO.
The time it takes for the echo to travel back to the probe is measured and used to calculate the depth of the tissue interface causing the echo.
The tumors were evaluated for their size and depth of invasion, echo pattern, and internal vascularity as well as the localization of the rectal wall layers that were disrupted by the tumor.
"We feel that Pacem in Terris is a very important place," he said, "because its wealth of beauty and depth of symbols echo in visitors in ways that are incalculable".
Purpose / Objective The purpose of this assessment/evaluation is to undertake an in-depth quantitative/qualitative assessment of the ECHO-funded UNICEF Drought Emergency Response -- Kordofan Region starting from project preparation (Feb. 2001) up to project completion (mid-Nov. mid-Nov. 2001
The modulation depths of the time-domain echo signals indicate a ~3-spin system, in agreement with the crystalline arrangement of Snf7, where each protomer has two neighboring protomers.
Moreover, Myers and colleagues showed that the width of the echo band can be related to the depth of fibrillation in the macroscopic degenerative cartilage surface [ 27].
They use sonar for direction, emitting sounds and using their echos to judge the depth of the water and the direction they are traveling.
Applying Fourier transform to the surface response of the target structure due to an impact, the depth of the interface can be determined through the impact-echo equation.
