Abstract We investigated the effect of ultrasonic treatment on Malas ( Homalium foetidum ) gas permeability and sound absorption coefficient using transfer function method. Results showed a longitudinal average Darcy constant 2.02 (standard deviation SD 0.72) for untreated wood 6.15 (SD 3.07) ultrasound-treated wood, increase 3.04 times. also determined coefficients in range 50 to 6.4 kHz NRC (...

in this research, the effect of variety, harvesting time and fruit size were investigated on the mechanical properties of skin, density and mechanical strength. the results showed that pomegranate cultivars (ardestani, shisheh-cap and malas) had different skin thickness resulting difference in forces required for penetration of pomegranate fruit (10%). the skin of shisheh-cap variety was thicke...

Pomegranate peel is a rich source of phenolic compounds (such as punicalagin and hydroxybenzoic acids). However, the content of such bioactive compounds in the peel extract can be affected by extraction type and condition. It was hypothesized that the optimization of a pulsed ultrasound-assisted extraction (PUAE) technique could result in the pomegranate peel extract with higher yield and antio...

Los métodos formales proporcionan buenas propiedades para abordar problemas en Ingeniería del Software. Sin embargo, en muchos casos no se suelen aplicar en un ámbito industrial debido a prejuicios o malas experiencias. En este artículo, se presenta un caso de éxito de la aplicación de especificaciones algebraicas en un entorno industrial de modelado para dar soporte a la Gestión de Modelos. Es...

Siguiendo la teoria de autodeterminacion, el objetivo del estudio fue analizar si percepcion alumnado sobre apoyo a las necesidades psicologicas basicas (autonomia, competencia y relacion social) estilo controlador (interno externo) profesorado predicen experiencias en clases educacion fisica. Participaron 942 estudiantes Educacion Secundaria Obligatoria (ESO) Bachillerato (M = 14.37; DT 1.55; ...