Being the biggest inner organ of humans, the liver contributes decisively to metabolism. Hereby, liver activities result from reactions on ingestion and digestion and are assumed to influence the acoustical properties of the liver tissue. In this work we present initial results of the investigation of aforementioned reactions by observing the liver in-vivo with ultrasound during several hours. ...

American National Standards (ANSI Standards) developed by Accredited Committees S1, S2, S3, S3/SC 1, and S12 in the areas of acoustics, mechanical vibration shock, bioacoustics, animal noise, respectively, are published Acoustical Society America (ASA). In addition to these standards, ASA publishes a catalog Standards. To browse latest copy our catalog, visit website at https://acousticalsociet...

The electrical equivalent model of an underwater acoustic transducer must be exactly defined in the operating frequency band to improve driving efficiency between a sonar transmitter and transducer. This paper used PSO (particle swarm optimization) algorithm estimate circuit parameters that has multiple resonant modes. proposed method new fitness function minimize estimation error measured impe...

In a Principles and Parameters syntax framework sentences are derived by two operations, merger and movement. Merger takes two categories as input (e.g., V and NP) and merges them into a single, higher-order category (e.g., VP). There are, however, constraints on the categories that can be merged successfully. Consider the following pairs: 1a. [NP The girl] sneezed 1b. *[NP The girl] sneezed [N...

tendon never restores the complete biological and mechanical properties after healing. bone marrow and recently adipose tissue have been used as the sources of mesenchymal stem cells, which have been proven to enhance tendon healing. stromal vascular fraction (svf), derived from adipose tissue by an enzymatic digestion, represents an alternative source of multipotent cells, which undergo differ...

A new acoustical parameter, called Intensity of Acoustic Radiation (IAR), was recently defined, and resulted very well related with mechanical vibration of sound source, being able to quantify the sound efficiency of musical Instruments In this paper the IAR was experimentally measured on Persian string musical Instruments. IAR relates mechanical vibration of surface (e.g. soundboards) and soun...