Dynamic Response of Bladed Disks with Uncertain Geometry

Turbomachinery is part of a critical class of mechanical systems essential for many industrial sectors and their operation often relies on bladed disks. In particular, gas turbines have acquired a fundamental role in the fields of aircraft propulsion and power generation thanks to their high efficiency and power-to-weight ratio. However, the operation of these turbomachines presents a few challenges, especially regarding reliability. For heavy-duty gas turbines, the rapid growth of sparse ene...

Insolvenza transfrontaliera e tutela dei crediti marittimi. Dalla Model Law UNCITRAL alla Convenzione di Pechino del 2022

Oggetto del presente elaborato è lo studio della disciplina della tutela del credito marittimo nel contesto dell’insolvenza transfrontaliera, con particolare attenzione alle fonti rilevanti a livello internazionale, dell’Unione europea ed interno. La prima parte dell’elaborato ricostruisce il quadro normativo al quale vanno riportati i principali istituti a tutela dei crediti marittimi, mentre la seconda si sofferma sull’insolvenza transfrontaliera, per analizzare (i) le modalità e le critic...

USE OF ENERGY AND PROCESS INDICATORS TO IMPROVE THE PERFORMANCE OF WASTEWATER TREATMENT PLANTS

Pattern Recognition Algorithms to Enhance the Performance of Energy Management Systems and the Reliability of Power Supply

This thesis investigates the application of pattern recognition algorithms in two fields. The first application focuses on enhancing the performance of energy management systems through advanced forecasting. To this end, a recurrent neural network is implemented to predict renewable energy production. The outcomes of the algorithm are input into an effective energy management system enabling a reliable estimate of dispatching programs for production units of plants and microgrids to minimize ...

Nonlinear Inductors in Power Electronics: Modeling, Design, and Control

Inductors that operate in partial magnetic saturation are increasingly attracting the interest of the scientific community in the attempt of enhancing the power density of switched-mode power supplies. Designing and simulating converters that use nonlinear magnetic components need accurate models capable of predicting their voltage and current characteristics, as well as power losses under various operating conditions. Typically, inductor datasheets do not provide comprehensive informati...

Environmental Risks and Climate Change: Migration and Community Resilience in Eastern Sub-Saharan Africa – IGAD Region

In recent times, the concept of resilience has been joined by the concept of community resilience with the aim of describing the capacity of communities to cope with external stresses and disturbances of a social, environmental and political nature; however, the definition of this concept is variable, which entails complications for its understanding, academic and especially practical use. Starting from an understanding of the complexity associated with global climate change from a geographic...

Transport investigation of topological materials

Enhancing Human-Robot Collaboration Through Advanced Human Activity Recognition and Motion Tracking

The primary objective of this research is to enhance human activity recognition (HAR), with a particular focus on recognizing, tracking and reconstructing human motion within human-robot collaboration (HRC) scenarios. The investigation journey began with a thorough examination of the literature on human activity recognition (HAR) to identify the main approaches in the field. The initial study identified a variety of strategies, including vision-based and wearable sensor approaches, each w...

Lovász-Saks-Schrijver ideals and the dual F-signature of Veronese subrings.

This dissertation presents two independent projects that demonstrate the interplay between commutative algebra and combinatorics. The first project delves into the study of certain algebraic properties of Lovász-Saks-Schrijver ideals and rings. Every simple finite graph G has an associated Lovász-Saks-Schrijver ring R_G(d) that is related to the d-dimensional orthogonal representations of G. We present a link between algebraic properties such as normality, factoriality and strong F-regularit...