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Control of a Five-Phase Induction Motor Drive with High-Torque Density and Voltage Overmodulation
Get PDFThis file is the presentation of the paper "Control of a Five-Phase Induction Motor Drive
with High-Torque Density and Voltage Overmodulation" held at ECCE 2022, Detroit, Michigan, 2022, and later published in IEEE Transactions on Industry Applications. The torque density of a multiphase motor can be increased without exceeding the current limit of the drive if the high-order spatial harmonics of the magnetic field in the air gap are appropriately synchronized with the fundamental one. However, this method is feasible only if the rotor speed is below the base speed because of the limited voltage of the converter. In fact, as the speed increases, the voltage required to sustain the harmonics of the field in the air gap rises. Above a certain speed, the most used strategy consists of controlling only the fundamental component of the magnetic field in the airgap. This paper shows that motor performance can improve if the injection of voltage harmonics is used to extend the linear modulation range of the fundamental component of the voltage vector. In the field weakening region, an increase in the magnitude of the stator voltage vector improves the motor power and torque. Experimental tests on a five-phase induction motor drive confirm the feasibility and the effectiveness of the developed control scheme
Fluorescent Neuronal Cells
No full textBy releasing this dataset, we aim at providing a new testbed for computer vision techniques using Deep Learning. The main peculiarity is the shift from the domain of "natural images" proper of common benchmark dataset to biological imaging.
We anticipate that the advantages of doing so could be two-fold: i) fostering research in biomedical-related fields - for which popular pre-trained models perform typically poorly - and ii) promoting methodological research in deep learning by addressing peculiar requirements of these images.
Possible applications include but are not limited to semantic segmentation, object detection and object counting.
The data consist of 283 high-resolution pictures (1600x1200 pixels) of mice brain slices acquired through a fluorescence microscope. The final goal is to individuate and count neurons highlighted in the pictures by means of a marker, so to assess the result of a biological experiment.
The corresponding ground-truth labels were generated through a hybrid approach involving semi-automatic and manual semantic segmentation. The result consists of black (0) and white (255) images having pixel-level annotations of where the stained neurons are located. For more information, please refer to Morelli, R. et al., 2021. Automating cell counting in fluorescent microscopy through deep learning with c-ResUnet. Scientific reports, (in press). https://doi.org/10.1038/s41598-021-01929-5.
The collection of original images was supported by funding from the University of Bologna (RFO 2018) and the
European Space Agency (Research agreement collaboration 4000123556)
DISTAL International 1st issue - 2021
Get PDFNewsletter on research, education, knowledge exchange, and international activities of DISTAL. By DISTAL Communication
National Edition of Aldo Moro's works (RDF Dataset)
No full textA Turtle file that contains structural, intertextual and contextual data about the National Edition of Aldo Moro's works
Estimating Demand with Multi-Homing in Two-Sided Markets
Get PDFWe empirically investigate the relevance of multi-homing in two-sided markets. First, we build a micro-founded structural econometric model that encompasses demand for differentiated products and allows for multi-homing on both sides of themarket. We then use an original dataset on the Italian daily newspaper market that includes information on double-homing by readers to estimate readers’ and advertisers’ demand. The results show that an econometric model that does not allow for multi-homing is likely to produce biased estimates of demand on both sides of the market. In particular, on the reader side, accounting for multi-homing helps to recognize complementarity between products; on the advertising side, it allows to measure to what extent advertising demand depends on the shares of exclusive and overlapping readers
ROCK. Co-design workshops and self-built transformation of public space in Bologna with students and professionals. Urban regeneration of Piazza Scaravilli. The Malerbe experience
No full textThe dataset contains the presentation and preparatory materials presented within the co-design workshop and self-built transformation of public space “Malerbe” held in June-July 2017 in Bologna, and the project of urban regeneration of Piazza Scaravilli co-developed by students and professionals during this workshop. It is within this experience that ROCK “co-design co-construction workshop and self-built transformation of public space” format has been developed. From this experience several other workshops have then been organized during ROCK project, to develop projects of urban regeneration in Bologna university district, along Via Zamboni.
Data collected in this dataset contain project proposals developed in a co-design workshop with University of Bologna architecture and design students, University of Bologna researchers, Centro Antartide staff. The projects are meant to be temporary installations to be realized by the same students in Piazza Scaravilli, previously a parking space.
Data can be used by both university researchers (as methodology to be replicated in similar workshops) or by city staff to take inspiration for projects to be realized in similar parts of the city
Impact Investing: an Overview
Get PDFImpact Investing is a very promising phenomenon which is gaining always more popularity and importance, drawing the attention of both academics and practitioners. This practice was crucial in the recovery process after the 2008 financial crisis, and it has all the potential to be considered as a critical element to respond to the emergency situation generated by Covid-19 pandemic.
However, since a lot of organisations and investors are now approaching the industry, this risks to incur the “impact washing” phenomenon. In order to avoid this threat, it is important to define the specific characteristics of impact investing, distinguishing it from other forms of sustainable finance, and this is the primary objective of this paper.
Subsequently, this work describes in detail the impact investing ecosystem, composed of supply-side, demand- side, intermediaries and the enabling environment, in order to provide a complete view of the phenomenon. Finally, the main challenges of impact investing are identified, in order to direct the attention of research to them, enabling the phenomenon not to lose its transformative potential
DISTAL informa Newsletter Febbraio 2021
Get PDFBollettino mensile di informazione che raccoglie eventi, notizie, articoli e attività del DISTAL. A cura dell'Area Comunicazione DISTA
Tra melancolia e disciplina. Per una storia costituzionale delle dottrine politiche. Festschrift für Pierangelo Schiera
Get PDFLa Festschrift per Pierangelo Schiera vuole essere soprattutto un confronto su alcuni temi che lui continua ad affrontare. I contributi qui raccolti da amici e allievi ripercorrono, da prospettive diverse e originali, alcuni di quei temi: il nesso tra legittimazione e rappresentazione dell’ordine (Vincenzo Calì, Giuseppe Olmi); la melancolia e le forme della disciplina (Luigi Lombardi, Gianfranco Borrelli, Angela De Benedictis, Luca Cobbe, Eleonora Cappuccilli, Paola Rudan); il nesso modernista tra scienze sociali e costituzione della società (Matteo Battistini, Niccolò Cuppini, Roberta Ferrari, Maurizio Ricciardi); il liberalismo, l'amministrazione e la “degenerazione” dello Stato moderno (Carla De Pascale, Giuseppe Duso); le autonomie e la disciplina delle costituzioni (Luigi Blanco, Anna Gianna Manca, Renato Mazzolini); la storia costituzionale e le dottrine politiche (Isabella Consolati, Gustavo Gozzi)
Anachronicity and Transgression of Law between the Millennia – Summum Ius, Summa Iniuria
Get PDFThis article aims to identify the new tendencies in the German law and literature movement of the 21st century. For this purpose, the novel Spieltrieb by the German judge and author Juli Zeh serves as an example. It is going to be analysed about the question of the literary expression of criticism of the German legal system. The aim is to combine three aspects: homelessness as a consequence of age, a world that follows new mechanisms and the role of law in these circumstances. Finally, it will be addressed to what extent the law and literature movement of the 21st century programmatically stands for the disintegration of society and law. Thereby, classical philosophical ideas are used, which can be found in the novel