A numerical model based on a hybrid finite element method is developed that seeks to join sound pressure fields in interior and exterior regions. The hybrid method is applied to the analysis of sound radiation from open pipes, or ducts, and uses mode matching to couple a finite element discretization of the region surrounding the open end of the duct to wave based modal expansions for adjoining...

Breastfeeding is a natural event that occurs after childbirth for woman which beneficial both mother and baby. problems can occur during the puerperium or lactation are breast engorgement also called milk dams. Breast dams due to superior lactiferous ducts glands not emptied completely, lack of information services provided regarding care. Based on 2017 Indonesian Demographic Health Survey (IDH...

Breast care aims to improve blood circulation and prevent blockage of the milk ducts so that breast is released. One treatments can increase production do lactation massage, types massage include oketani oxytocin massage. In 1991, a midwife from Japan named Sotomi Oketani created technique overcome breastfeeding problems called Oxytocin itself along spine which one solution non-smooth productio...

Abstract Cross-sectional imaging modalities including ultrasound (US), magnetic resonance (MR) imaging, and computed tomography (CT) play a critical role in the diagnosis of diseases biliary tract gallbladder. Biliary for evaluation obstructive jaundice seeks to diagnose level obstruction its cause. The identification dilated bile ducts necessitates strictures or filling defects, which is best ...

The focus of this article is toward the development of hybrid analytic-numerical mode-matching methods for model problems involving three-dimensional ducts of rectangular cross-section and with flexible walls. Such methods require first closed form analytic expressions for the natural fluid-structure coupled waveforms that propagate in each duct section and second the corresponding orthogonalit...