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The acoustic importance of velaria in Roman amphitheaters: Investigations on the effects of different coverage percentages in Durres and Capua

Roman amphitheaters were studied from an architectural perspective, as the geometry of elliptical or oval construction was always under discussion. The Roman amphitheaters of Durres and Capua were analysed with particular attention to the effects of the velarium on the acoustic response of the spaces. The investigations were conducted for the original shapes of the amphitheaters with different coverage percentages of the awning: no shading; half shading along the major axis; half shading alon...

Preparation of PPA based composite reinforcing with glass beads and clays: Investigation of sound absorbing

The research investigates the sound absorption properties of potassium polyacrylate (PPA) composites, particularly those augmented with clay and porous hollow glass beads within a hydrogel template. This unique material combination shows promise for efficient sound absorption, relevant in industries requiring effective noise control like acoustic engineering and construction. Experimental assessment focused on measuring the sound absorption coefficient, crucial for quantifying a material's ab...

Acoustic properties of two emblematic theaters in Algeria: The case of the National Theater of Algiers TNA and the Regional Theater of Bejaia TRB

In this paper, the acoustics of multi-purpose colonial theaters in Algeria, those of Algiers and Bejaia, are studied to evaluate their acoustic conditions (suitability for music and speech) in view of their architecture's evolution. To do, acoustics measurements were performed inside them according to the ISO 3382-1 Standard in unoccupied conditions. The average values of acoustic parameters (EDT, T30, C80, and D50) are reported in frequency domain from 125 to 4 kHz. Furthermore, maps of spat...

Improving Acoustic Properties of Sandwich Structures Using Recycled Membrane and HoneyComb Composite (RMHCC)

The motivation behind this study is to improve acoustic environments in living spaces using sustainable materials. This research addresses the challenge of enhancing the acoustic properties of sandwich structures through the integration of a honeycomb core with a membrane made from recycled materials, forming a recycled membrane honeycomb composite (RMHCC). The main objective is to develop a novel sandwich material with sound-absorbing characteristics suitable for real-world applications. The...

Modular Housing Using Fibre-Reinforced Plastic Polymers (FRPs)

In the era of the climate emergency and different pandemics, systems that can provide an immediate response to housing needs are required. This paper aims to evaluate the use of fibre-reinforced plastic polymers (FRPs) to satisfy this need. In particular, a modular emergency housing system that utilises FRPs for structures and cladding is proposed, which proves adaptable to both different uses and different kinds of temporary or permanent buildings. By adapting modular emergency housing to di...

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Prodotti recenti

The acoustic importance of velaria in Roman amphitheaters: Investigations on the effects of different coverage percentages in Durres and Capua

Preparation of PPA based composite reinforcing with glass beads and clays: Investigation of sound absorbing

Acoustic properties of two emblematic theaters in Algeria: The case of the National Theater of Algiers TNA and the Regional Theater of Bejaia TRB

Improving Acoustic Properties of Sandwich Structures Using Recycled Membrane and HoneyComb Composite (RMHCC)

Modular Housing Using Fibre-Reinforced Plastic Polymers (FRPs)

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