1,354,238 research outputs found
Overview on Battery Charging Systems for Electric Vehicles
No full textCatalyzed by the increasing interest in bi-directional electric vehicles, this paper delves into their significance and the challenges they encounter. Bi-directional electric vehicles not only serve as transportation but also function as essential electricity resources. Central to this energy revolution are On-Board Chargers (OBCs), which are pivotal in converting alternating (AC) energy into direct (DC) energy and vice versa. In this context, we explore the various circuit architectures of OBCs employed in bi-directional electric vehicles. We delve into the intricacies of rectifiers, switching converters, and the application of advanced control and filtering technologies. Our analysis extends to the implications of these circuit architectures on aspects such as voltage regulation capability, energy efficiency, and thermal management. Furthermore, we address the broader significance of these developments in the integration of bidirectional systems, which are driving advances in circuit architectures to better harness the energy flexibility of electric vehicles. We emphasize the critical role of bi-directional electric vehicles in the transition toward a smart and sustainable energy grid. To enhance accessibility for a diverse readership, we will provide concise definitions or explanations for technical terms used throughout the paper, ensuring that our work is approachable even for those who may not be experts in the field
METODO PER LA STIMA DI PRESENZA DI PIOGGIA
No full textLa presente invenzione ha per oggetto un metodo per la stima di presenza di pioggia del tipo precisato nel preambolo della prima rivendicazione. In particolare, la presente invenzione ha per oggetto un metodo per la stima di presenza di pioggia basato sulla misura della degradazione del segnale sulla tratta in discesa di collegamenti satellitari con regolazione adattiva dei parametri atmosferici di riferimento
Review on Modeling and SOC/SOH Estimation of Batteries for Automotive Applications
No full textLithium-ion batteries have revolutionized the portable and stationary energy industry and are finding widespread application in sectors such as automotive, consumer electronics, renewable energy, and many others. However, their efficiency and longevity are closely tied to accurately measuring their SOC and state of health (SOH). The need for precise algorithms to estimate SOC and SOH has become increasingly critical in light of the widespread adoption of lithium-ion batteries in industrial and automotive applications. While the benefits of lithium-ion batteries are undeniable, the challenges related to their efficient and safe management cannot be overlooked. Accurate estimation of SOC and SOH is crucial for ensuring optimal battery management, maximizing battery lifespan, optimizing performance, and preventing sudden failures. Consequently, research and development of reliable algorithms for estimating SOC and SOH have become an area of growing interest for the scientific and industrial community. This review article aims to provide an in-depth analysis of the state-of-the-art in SOC and SOH estimation algorithms for lithium-ion batteries. The most recent and promising theoretical and practical techniques used to address the challenges of accurate SOC and SOH estimation will be examined and evaluated. Additionally, critical evaluation of different approaches will be highlighted: emphasizing the advantages, limitations, and potential areas for improvement. The goal is to provide a clear view of the current landscape and to identify possible future directions for research and development in this crucial field for technological innovation
La cultura figurativa di età romana nell'alto Tirreno cosentino
No full textPresentazione di ritrovamenti di scultura romana dal territori
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
The NEFOCAST project: Quantitative precipitation estimation based on interactive satellite terminals
No full textIn this paper we describe an algorithm to retrieve 2D rainfall fields exploiting the attenuation measurements made along satellite links. This algorithm has been developed in the framework of the project NEFOCAST, a research project funded by Tuscany region. Preliminary results show that there is a good matching between the rain rate retrieved from the satellite links’ attenuation and the rain rate measured by rain gauges and weather radar. In the future, the installation of additional devices will enable the implementation of a more sophisticated algorithm for assessing the rain rate, allowing a detailed reconstruction of the rainfall field
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
METHOD FOR ESTIMATING THE PRESENCE OF RAIN
No full textIt is provided a method for estimating the presence of rain characterized by comprising the steps of entering a set of static parameters, entering a set of dynamic parameters, measuring an instant value, sending said values to a first Kalman filter and to a second Kalman filter and define the start of a precipitative event if a difference between said KalmanST output and said KalmanFT output exceeds said "epsilonStart" threshold value and also define the term of a precipitative event if a difference between said KalmanST output and said KalmanFT output is lower than said "epsilonStop" threshold value
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