Nonlinear Ultrasound Simulation Based on Full-Wave Model and Comparisons with KZK
نویسندگان
چکیده
منابع مشابه
Full-wave nonlinear ultrasound simulation on distributed clusters with applications in high-intensity focused ultrasound
Model-based treatment planning and exposimetry for high-intensity focused ultrasound requires the numerical simulation of nonlinear ultrasound propagation through heterogeneous and absorbing media. This is a computationally demanding problem due to the large distances travelled by the ultrasound waves relative to the wavelength of the highest frequency harmonic. Here, the k-space pseudospectral...
متن کاملmortality forecasting based on lee-carter model
over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
15 صفحه اولDistributed source model for the full-wave electromagnetic simulation of nonlinear terahertz generation.
The process of terahertz generation through optical rectification in a nonlinear crystal is modeled using discretized equivalent current sources. The equivalent terahertz sources are distributed in the active volume and computed based on a separately modeled near-infrared pump beam. This approach can be used to define an appropriate excitation for full-wave electromagnetic numerical simulations...
متن کاملNumerical simulation of ultrasound-thermotherapy combining nonlinear wave propagation with broadband soft-tissue absorption.
Ultrasound (US) thermotherapy is used to treat tumours, located deep in human tissue, by heat. It features by the application of high intensity focused ultrasound (HIFU), high local temperatures of about 90 degrees C and short treating time of a few seconds. Dosage of the therapy remains a problem. To get it under control, one has to know the heat source, i.e. the amount of absorbed US power, w...
متن کاملFull Wave Vector Maxwell Equation Simulation of Nonlinear Self-Focusing E ects in Three Spatial Dimensions
| In our eeort to meet an increasing demand for more accurate and realistic nonlinear optics simulations, we have developed a nonlinear hybrid vector nite element method (NL-HVFEM) to study different phenomena due to wave propagation in waveg-uides lled with nonlinear Kerr-type media. Contrary to the most existing scalar models, the NL-HVFEM approach is based upon the vector Helmholtz equation ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: International Journal of Bioscience, Biochemistry and Bioinformatics
سال: 2014
ISSN: 2010-3638
DOI: 10.7763/ijbbb.2014.v4.363