one of the nondestructive methods for assessing the internal quality of some fruits is the processing and analyzing the sound signals generated by an impact on the fruit. in this regard determining the location and the suitable impact levels for a certain fruit is required. in this study, the selected crimson sweet variety of watermelon was used for the acoustic tests by imposing the impact for...

the present study provides an analysis of the correlation between acoustic properties, duration and pitch amplitude of speech associated with three basic emotions: anger, sadness and joy against neutrality as a reference, emotionally expressed by six persian speakers. rise/fall connection model (taylor, 1995) is used to analyze acoustic parameters and measure how an utterance is modulated when ...

In order to further improve the trapping effect of fine particles, a new electrostatic cyclone precipitator (ECP) with magnetic confinement was proposed, overall efficiencies particles under different operating conditions were numerically simulated, and influence working voltage on dust-removal without field discussed. The results show that increasing or induction intensity improves performance...

In this paper, the acoustic environment in a vehicle cabin under the influence of highfrequencies aerodynamic sources has been studied. Some panels on the windshield, the roof, the doors, the front pillars, and the floor of a vehicle simulated as input source of noise when the car is moving at high speed, i.e. 112 km/h. The status of vehicle cabin in each of these modes has been studied and com...