In the patients with chronic alcoholism caused by lastingly drinking high degree wine,54% had hepatomegaly and liver parenchyma showed lipoidal-change acoustic image at varied degree.
According to acoustic structure theory base,acoustic principle of multi-holes acoustextile and nonwovens characteristics,nonwovens acoustic theory are analysed in the paper.
In order to study laryngeal phonic function,the methods of acoustic evaluation and phonatory detection has become the focused problem by doctors in otorhinolaryngology and speech pathology.
A hypercomplex model of acoustic vector sensor array is introduced.The hypercomplex number is used to model holistically the four output signal components of an acoustic vector sensor.
The low frequency acoustic design for an automobile body structure is very important to improve the carborne acoustic comfortability and to enhance the competitiveness for the car products in market.