03 Contributo in periodico (Part of a journal)

03 Contributo in periodico (Part of a journal): [66138] Home page macrotipologia

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Comparative Analysis of Pin-on-Disc and Inertia-Dynamometer Sliding Tests on a Friction Material

The development of modern brake systems requires the assessment of multiple aspects. Among these, parameters related to the tribological behaviour, vibration, and particulate matter emission are typically evaluated using inertia dynamometers and tribometers. While these two testing systems have been previously compared regarding emissions and tribological behaviours, vibrations were not compared, nor have all these aspects been examined simultaneously. This study investigates the scale effect...

Corrosion-Fatigue of L-PBF Ti-6Al-4V Lattice Struts: Role of Geometrical Imperfections under Simulated Physiological Conditions

The corrosion-fatigue behaviour of laser powder bed fusion (L-PBF) Ti-6Al-4V lattice struts was investigated with particular emphasis on the role of manufacturing-induced geometrical imperfections. Thin strut specimens representing strut-based lattice sub-unit elements were built at a 60◦ orientation and tested under tension–tension loading (R =0.1) in laboratory air and in phosphate-buffered saline (PBS) at 37 ◦C. Micro-computed tomography (Micro-CT) was employed to quantify surface roughne...

Investigation into a Nonlinear Vibration Neutralizer that Incorporates Magnets

Vibration neutralizers are devices designed to reduce vibration levels within a host structure caused by external sources. Unlike tuned vibration absorbers, which target a resonance frequency of the host structure, vibration neutralizers are specifically tailored to suppress vibration at a harmonic frequency of the external excitation source. The design and application of these devices are critical, especially given the challenges posed by low-frequency vibration control, where either a l...

Distinct neural representational geometries of numerosity in early visual and association regions across visual streams

Visual numerosity, traditionally linked to the parietal cortex, is now thought to be represented across a broader cortical network, including early visual and associative areas in both streams. However, how numerosity is encoded relative to other visual features remains unclear. We conducted a whole-brain functional magnetic resonance imaging (fMRI) study with thirty-one adults performing a numerosity estimation task on visual sets varying in number, item size, total item area, field area, an...

A Transdisciplinary Analysis of the 2009 Catastrophe in Giampilieri Superiore by Land Use Evolution Over Time

On October 1 2009 a deluge hit the Peloritani Mountains, in NE Sicily, Italy, where the rainfall data recorded 225 mm in 9 h. Giampilieri Superiore was the most affected townlet in terms of infrastructural damages and human losses (37 dead, 37 wounded, and more than 1000 evacuees). The debris flows, triggered by flash floods wreaked havoc of the urban structure. More than 200 mln € was granted to protection works for conveying water and debris flows to bypass the town. The disaster was numeri...

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