Adaptive Estimation of Intravascular Shear Rate Based on Parameter Optimization

Abstract

Cross sections and initial quantum number distributions are calculated for capture of the antiproton (p) and negative muon (µ − ) by the hydrogen molecular ion H + 2 using the fermion molecular dynamics method. The capture ofp is found to be almost entirely adiabatic, occurring via target dissociation without ionization, but nonadiabatic effects are found to play a significant role in the capture of µ − , especially at the higher capture energies. Generally good agreement is obtained with the recent adiabatic classical-trajectory Monte Carlo calculation of Sakimoto J. Phys. B: At. Mol. Opt. Phys. 37 2255. The capture properties of H + 2 are shown to be completely different from those of both the H atom and neutral H 2 molecule.

Wall shear stress measurement method based on parallel flow model near vascular wall in echography

“…[6][7][8] An ultrasonic diagnostic instrument can measure the velocity of a blood flow quickly and noninvasively. However, the measured velocity distribution generally contains non-negligible error in regard to a derivative calculation; 9,10) therefore, the velocity gradient calculated directly from the velocity distribution is less accurate in regard to distinguishing normal vessels from high-risk vessels.…”

Introduction of measurement techniques in ultrasonic electronics: Basic principles and recent trends

“…Scattering [359][360][361][362][363][364] Ultrasonic transducers (piezoelectric effect) and its attachments [375][376][377][378][379][380][381] Acoustic field measurement and control [382][383][384][385][386] Blood flow measurement [394][395][396][397] Tissue characterization Velocity [125][126][127][128][129][130][131][132][133][134][406][407][408]420,422) Displacement 409,413,425) Thickness 399,418) Viscoelasticity 398,[401][402][403][404][405][410]…”