Nautet V,Luo Q,Wagstaff P R et.Calculation of Acoustic Near field of Vibrating Structures from Vibration Measurements.Applications to Sonar Arrays. . 1999Nautet V,Luo Q,Wagstaff P R,et al.Calculation of acoustic nearfield of vibrating structures from vibration measurements.Applications to sonar ...
This calculation for our thin plate excited at f = 45 kHz assuming free edge conditions yields to the solid lines in Fig. 1b (red) and c (black), in good agreement with experimental data. Note that as in Eq. 2 the I0 term is negligible away from the borders, the membrane ...
- 《Ultrasound in Medicine & Biology》 被引量: 122发表: 2004年 The calculation of the transient near and far field of a baffled piston using low sampling frequencies A method is presented to calculate the near- and far-field transient radiation of acoustical transducers using low sampling ...
The building height field is static and the others are dynamic with respect to time. The building height and downward shortwave radiation are in high-resolution, while the others are in low-resolution. Even if the downward shortwave radiation is in high-resolution, it can be calculated in a ...
field scattered-field (TFSF) linearly polarized light waves, which was polarized in line withX-axis with a wavelength range of 400–1400 nm, were injected into the unit cell along the -Zdirection. The amplitude of the electric field vector of the TFSF linearly polarized light vector was ...
Concurrently, the calculation of confidence intervals demonstrates that the confidence intervals for the experimental group at these two time points are notably greater than those for the control group. Taken together, these results validate the efficacy of the NFCPS to detect normal status, CE and ...
This method effectively captures the complex dynamic characteristics of bubble in a fluid and has widespread applications in the field of bubble dynamics. This paper utilizes OpenFOAM 4.1 and employs an improved CompressibleInterFoam calculation model (Zeng et al., 2018, Li et al., 2019b, Reese ...
CMR, cardiovascular magnetic resonance; HIP, high-intensity plaque; IVUS, intravascular ultrasound; NIRS, near infrared spectroscopy; PCI, percutaneous coronary intervention; PMR, plaque-to-myocardial signal intensity ratio Full size image The baseline clinical characteristics of the patients are summarized...
in all calculation domains has been used for setting the single scale limit of the right hand side color bars. This way, one can better observe the active sound field attenuation effects on the total pressure directivities and magnitudes. Furthermore, one can generally rank the clocking performan...
Compared with conventional fluorescence imaging, PA imaging has higher spatial resolution and deeper penetration depth as the scattering of acoustic waves in tissue is orders of magnitude weaker than that of light; and compared with ordinary ultrasound imaging, PA imaging has better tissue contrast, ...