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La direttiva (UE) 2025/25 e i sistemi pubblicitari delle società di persone in chiave comparatistica
No full textNonlinear Optimal Control of the Aircraft's Wing-Rock Effect Under a 5th-Order Model
No full textA new nonlinear optimal control method is proposed for solving the problem of control and stabilization of the roll motion of aircrafts under the wind-rock effect, with the use of a 5th-order dynamic model. It is proven that the 5-th order dynamic model of the wing-rock effect is a differentially flat system which can be transformed into the input-output linearized form. Next it is shown that the wing-rock model admits nonlinear optimal control. To apply nonlinear optimal control the dynamics of the wing-rock effect undergoes approximate linearization around a temporary operating point that is updated at each iteration of the control algorithm. The linearization takes place through first-order Taylor series expansion and through the computation of the Jacobian matrices of the system's state-space description. For the approximately linearized model of the wing-rock dynamics an H-infinity feedback controller is designed. Actually, the H-infinity controller gives a solution to the optimal control problem for the wing-rock effect under model uncertainty and parametric variations. For the computation of the feedback gains of the H-infinity controller an algebraic Riccati equation is solved at each time-step of the control method. The stability properties of the control algorithm are demonstrated through Lyapunov analysis. First, it is shown that the control scheme achieves the H-infinity tracking performance which signifies elevated robustness for the control loop of the wing-rock dynamics against model uncertainties and external perturbations. Next, it is also proven that the control loop of the 5th-order wing-rock model is globally asymptotically stable. The proposed control method achieves fast and accurate tracking of setpoints under moderate variations of the control inputs
Energy Efficiency Assessment and Monitoring in Plastic Injection Moulding: Development of a Decision-Support Dashboard
No full textThis study, conducted in collaboration with ENEA as part of a national project financed by the Italian Ministry for the Environment and Energy Security on the topic of Energy Efficiency of Industrial Products and Processes (“Ricerca di Sistema PTR22-24”), focuses on the energy analysis of plastic injection moulding. The research is based on the evaluation of mandatory energy audits, as required by Legislative Decree 102/2014, for high-consumption companies. The primary objective is to develop a comprehensive set of energy performance indicators and an advanced monitoring dashboard to facilitate energy efficiency improvements in the industrial sector. Initially, an analysis of the production processes was conducted to establish the reference production process for the study. Subsequently, a three-level energy mapping was carried out, beginning with the identification of the energy vectors utilized and culminating in the definition of energy consumption at each stage. The primary energy vectors identified were electricity, natural gas, and diesel; among the production phases, injection moulding was determined to be the most energy-intensive. Subsequently, to support industrial energy management, a monitoring dashboard was developed to offer companies an intuitive interface to track and analyse their energy consumption. This tool allows the visualisation and monitoring of consumption, comparative analysis over different time periods, and an in-depth analysis of the moulding phase. In addition, the dashboard includes a ‘What-if?’ scenario analysis, which allows companies to simulate and evaluate potential energy efficiency measures prior to implementation. The goal of this research is to equip manufacturing companies with effective self-diagnosis tools, facilitating continuous energy performance improvements. By promoting a data-driven approach to energy management, this work contributes to enhancing the sustainability, cost-effectiveness, and competitiveness of the industrial sector while supporting broader efforts to reduce energy consumption
Il videogioco in Italia. Archeologia del presente: il videogioco tra passato e futuro Video Games in Italy. Archaeology of the Present: Video Games Between Past and Future
No full textNegli ultimi anni il videogioco ha acquisito crescente rilevanza come oggetto di studio anche in Italia, trovando spazio in contesti accademici legati alle scienze umane e sociali. Questo editoriale introduce il numero speciale dedicato alla terza edizione del convegno “Il videogioco in Italia”, che si propone come piattaforma di confronto interdisciplinare sul videogioco nazionale in relazione alle sue dinamiche culturali, produttive e territoriali.
Il volume raccoglie contributi che analizzano il videogioco italiano in una prospettiva locale e globale, esplorandone le rappresentazioni, l’industria, le politiche culturali e le pratiche di fruizione, con l’obiettivo di consolidare un campo di ricerca in espansione e ancora poco istituzionalizzato nel panorama scientifico italiano.
In recent years, video games have gained increasing academic recognition in Italy, particularly within the humanities and social sciences. This editorial introduces the special issue dedicated to the third edition of the conference “Il videogioco in Italia”, which aims to foster interdisciplinary dialogue around the cultural, industrial, and territorial dimensions of Italian video games. The volume gathers contributions that explore the Italian gaming landscape from both local and global perspectives, addressing issues of representation, industry, cultural policy, and audience practices. The issue seeks to strengthen a growing yet still under-institutionalized field of research in the Italian academic context
Full-Endoscopic Minimally-Invasive Trans-Magendie Approach to the Fourth Ventricle: An Anatomical Feasibility Study
No full textBackground: The telovelar approach provides access to the caudal two-thirds of the fourth ventricle without requiring vermian splitting. Indeed, the traditional microsurgical approach is often limited by a restricted cranial angle of attack and visualization, making it challenging to evaluate the patency of the aqueduct. To address this limitation, resection of the posterior arch of C1 is frequently performed. This study aims to describe and evaluate the feasibility of a full-endoscopic, retractorless, trans-Magendie approach to the inferior third of the fourth ventricle, avoiding removal of the posterior arch of C1 through a minimally invasive burr-hole suboccipital craniotomy. Methods: Four formalin-fixed, injected cadaveric heads were investigated. A step-by-step anatomic description of the proposed approach is provided. Results: Adequate cranial and lateral visualization of the aqueduct and fourth ventricle floor was achieved without removing the posterior arch of C1. Conclusions: The full-endoscopic trans-Magendie approach enables adequate visualization of the inferior two-thirds of the fourth ventricle and the caudalmost portion of the aqueduct while avoiding the need for a C1 laminectomy and significantly reducing the craniotomy size
Could artificial intelligence accelerate progress in ambulatory anesthesia?
No full text: Ambulatory anesthesia is increasing its activity, both in terms of numbers and complexity. It represents a possible solution for containing costs in healthcare, and for increasing the comfort of patients and families. AI (artificial intelligence) is a possible resource to further implement the activity of ambulatory anesthesia
Una risorsa digitale per la didattica della comprensione: sviluppo, utilizzo e proposte di miglioramento della piattaforma LeCo
No full textThis contribution presents LeCo (Leggere e Comprendere), a digital platform designed to improve comprehension skills for written, oral, and multimodal texts. Accessible upon registration from various devices, LeCo currently includes 155 texts of different types distributed across three difficulty levels. The texts are accompanied by audio readings and multiplechoice questionnaires tailored to enhance comprehension abilities. The platform enables students to monitor their progress and develop personalized learning pathways, while teachers can track individual and group performance through downloadable reports. This paper outlines the platform’s theoretical framework and explores future developments, including corpus expansion, the introduction of open-ended responses, and the integration of LeCo with other digital technologies
Potential Herbicidal and Insecticidal (Beneficial) Properties of Nepalese Lemongrass Essential Oil
No full textCymbopogon citratus (DC.) Stapf, commonly known as lemongrass, is a member of the Poaceae family and is native to tropical and subtropical regions, including South Asia. The species is renowned for its diverse applications in culinary arts, perfumery, and traditional medicinal practices. This study aimed to characterize the essential oil (EO) composition of lemongrass and evaluate its biological properties. The EO was extracted via hydrodistillation using a Clevenger apparatus, and its chemical profile was analyzed by gas chromatography–mass spectrometry (GC/MS). The major constituents identified were neral (35.5 ± 0.6%) and geranial (36.0 ± 0.4%), which together constitute the primary isomers of citral. The antioxidant activity, assessed using DPPH, FRAP, and ABTS assays, was moderate compared to the Trolox standard. Similarly, the EO exhibited weak tyrosinase inhibition activity. However, the EO exhibited significant herbicidal and insecticidal effects with no observed ecotoxicological risks. These findings highlight lemongrass EO as a promising eco-friendly alternative to synthetic pesticides