A gradient flow approach to linear Boltzmann equations

We introduce a gradient flow formulation of linear Boltzmann equations. Under a diffusive scaling we derive a diffusion equation by using the machinery of gradient flows

CYBERWISER.eu: Innovative Cyber Range Platform for Cybersecurity Training in Industrial Systems

Information technologies are nowadays part of industrial systems. Employees in charge of managing these systems typically have little or very little knowledge of cybersecurity. In this work we initially explore the challenges related to cybersecurity training in industrial systems and then we propose an approach based on CYBERWISER.eu cyber range platform. A cyber range provides a multipurpose virtual environment in which organisations can test critical capabilities and reveal how effectively they integrate people, processes, and technology to protect their strategic information, services, and assets. By facilitating high-fidelity simulations, a cyber range can associate the cybersecurity training phase with a personalized security testing, together with a unit testing, on different kind of systems, including SCADA

La voce della DEA: Esiti di un questionario su antropologia e comunicazione in Italia

This research report presents the findings of a quantitative investigation about anthropology and mass media, based on questionnaires mailed to all Italian anthropology professors (Scientific-Disciplinary Sector M-DEA/01). The goal of this survey was to discover how much Italian anthropologists are present in local, national and international newspapers, radios and televisions. The result of this study indicates a low level of presence in mass media for the Italian anthropologist, indeed three out of four communicate little through mass media and only few of them have a constant presence. Basically, this research indicates a higher local type of communication than a national and international sort of communication. Such individual (such as the academic role) and contextual (such as the geographical location of the university) characteristics are associated with the presence in a particular media. Finally, there is a statical positive correlation between Public Engagement activities and communication. Despite the little communication (even if on average not inferior to that of other colleagues from other disciplines), Italian anthropologists are mostly in favor of the popularization of the discipline through mass media and the web.Questo rapporto di ricerca presenta i risultati di un’indagine quantitativa su antropologia e mezzi di comunicazione di massa che tra maggio e giugno 2020 ha coinvolto, attraverso la somministrazione di questionari, tutti gli strutturati del settore scientifico-disciplinare M-DEA/01. L’obiettivo della survey era quello di quantificare la presenza degli accademici su giornali, radio e tv a livello locale, nazionale e internazionale. Ciò che emerge è che i mass media non sono molto frequentati dagli antropologi italiani: tre accademici su quattro comunicano poco attraverso i media e solo una minima parte dichiara di frequentarli in modo continuativo. In generale prevale una comunicazione a livello locale rispetto a quello nazionale e internazionale. Alcuni fattori personali, come il ruolo universitario, o di contesto, come la sede dell’ateneo, possono favorire l’apparizione su un determinato media. Si registra, infine, una correlazione positiva tra l’impegno in attività di Public Engagement e l’attivismo nella comunicazione. Nonostante la scarsa comunicazione extra-accademica (ma mediamente non inferiore a quella dei colleghi di altre discipline), gli antropologi italiani si dichiarano perlopiù favorevoli all’utilizzo dei mass media e del web per la disseminazione

Quel sentiero che nasce camminando: Un’antropologia per un altro mondo possibile

Review article of Anand Pandian, A Possible Anthropology. Methods for Uneasy Times. Duke University Press, Durham and London, 2019, pp. 160; Tim Ingold, Antropologia. Ripensare il mondo, translated by Gaia Raimondi, edited by Matteo Meschiari, Meltemi, Milano, 2020, pp. 112.Nota critica su Anand Pandian, A Possible Anthropology. Methods for Uneasy Times. Duke University Press, Durham and London, 2019, pp. 160; Tim Ingold, Antropologia. Ripensare il mondo, traduzione di Gaia Raimondi, edizione italiana a cura di Matteo Meschiari, Meltemi, Milano, 2020, pp. 112

Large deviations for Kac-like walks

We introduce a Kac's type walk whose rate of binary collisions preserves the total momentum but not the kinetic energy. In the limit of large number of particles we describe the dynamics in terms of empirical measure and flow, proving the corresponding large deviation principle. The associated rate function has an explicit expression. As a byproduct of this analysis, we provide a gradient flow formulation of the Boltzmann-Kac equation

Investigation of Mechanical Properties of Aluminum Tailor Welded Blanks

Nowadays, the reduction of CO2 emissions and the decrease in energy consumption are the main aims of several industries, especially in the automotive sector. To comply with the increasingly restrictive regulations, the automotive industry is constantly looking for innovative techniques to produce lighter, more efficient, and less polluting vehicles. One of the latest technologies, and still developing, is based on the fabrication of the body-in-white and car parts through the stamping of aluminum Tailor Welded Blanks. Tailor Welded Blanks (TWBs) are generally the combination of two/three metal sheets with different thicknesses and/or mechanical strengths, which are commonly butt-welded together by laser sources. The use of aluminum TWBs has several advantages such as low density and corrosion resistance adequate. However, their use is still limited by the lower formability with respect to the parent materials and the more intrinsic difficulty of laser welding of aluminum sheets (i.e., internal porosity) that, although its use in automated industries is constantly growing, remains a process to be further developed and improved. This study has investigated the effect of the main laser welding process parameters (laser power, welding speed, and focal distance) on the mechanical properties of aluminum TWBs made of 6xxx series. The research results show that a narrow weldability window can be found to ensure welded joints with high strength and limited or no porosity