310 research outputs found
Toward an Automatic Classification of SEM Images of Nanomaterials via a Deep Learning Approach
No full textNanofibrous materials produced by electrospinning process may exhibit characteristic localized defects and anomalies (i.e., beads, speck of dust) that make the nanostructure a network of nonhomogeneous nanofibers, unsuitable for industrial production at large scale of the nanoproducts.Ieracitano, Cosimo Therefore, monitoring and controlling the quality of nanomaterials production has become increasingly important and intelligent anomalies detection systems have been emerging. Pantó, Fabiola In this study, we propose an innovative framework based on machine (deep) learning for automatic anomaly detection.Mammone, Nadia Specifically, a deep convolutional neural network (CNN) is proposed to automatically classify scanning electron microscope (SEM) images of homogeneous (HNF) and nonhomogeneous nanofibers (NHNF), interpreted as two different categories.Paviglianiti, Annunziata The proposed approach has been validated on experimental SEM images acquired through SEM images analyzer on polyvinylacetate (PVAc) nanofibers produced by electrospinning process. Frontera, Patrizia Experimental results showed that the designed deep CNN achieved an accuracy rate up to 80% and average precision, recall, F_score of, 78.5, 79, and 78.5%, respectively. These promising results encourage the use of this effective technique in industrial production.Morabito, Francesco Carl
CAPRI versus AGLINK-COSIMO: Two partial equilibrium models - Two baseline approaches
No full textThe agricultural modelling world has generated several models aiming at the analysis of the response of the sector to certain changes in exogenous mainly policy variables. Among those, the CAPRI modelling system developed by a consortium centred on the University of Bonn and the AGLINK-COSIMO model, a joint product of the OECD and the FAO, are well known and accepted as comprehensive tools. This analysis focuses on a qualitative comparison of both models and particularly on the process of setting up the baseline. The baseline is a medium-term projection of agricultural markets reflecting current policies and those already decided upon. This projection in turn serves as the base for comparisons when analyzing scenarios. It is shown that CAPRI uses generic and automatic procedures whenever possible for conducting the database and the baseline, while AGLINK-COSIMO puts more emphasis on expert knowledge in this process. Both approaches are shown to have certain advantages while the conclusion that a combination of them would potentially improve both models will be drawn from this analysis.CAPRI, AGLINK-COSIMO, Baseline process, Agricultural and Food Policy,
A novel automatic classification system based on hybrid unsupervised and supervised machine learning for electrospun nanofibers
No full textThe manufacturing of nanomaterials by the electrospinning process requires accurate and meticulous inspection of related scanning electron microscope ( SEM ) images of the electrospun nanofiber, to ensure that no structural defects are produced. The presence of anomalies prevents practical application of the electrospun nanofibrous material in nanotechnology. Hence, the automatic monitoring and quality control of nanomaterials is a relevant challenge in the context of Industry 4.0. In this paper, a novel automatic classification system for homogenous ( anomaly-free ) and non-homogenous ( with defects ) nanofibers is proposed. The inspection procedure aims at avoiding direct processing of the redundant full SEM image. Specifically, the image to be analyzed is first partitioned into sub-images ( nanopatches ) that are then used as input to a hybrid unsupervised and supervised machine learning system. In the first step, an autoencoder ( AE ) is trained with unsupervised learning to generate a code representing the input image with a vector of relevant features. Next, a multilayer perceptron ( MLP ) , trained with supervised learning, uses the extracted features to classify non-homogenous nanofiber ( NH-NF ) and homogenous nanofiber ( H-NF ) patches. The resulting novel AE-MLP system is shown to outperform other standard machine learning models and other recent state-of-the-art techniques, reporting accuracy rate up to 92.5% . In addition, the proposed approach leads to model complexity reduction with respect to other deep learning strategies such as convolutional neural networks ( CNN ) . The encouraging performance achieved in this benchmark study can stimulate the application of the proposed scheme in other challenging industrial manufacturing tasks
SoCNNet: An Optimized Sobel Filter Based Convolutional Neural Network for SEM Images Classification of Nanomaterials
No full textIn this paper an optimized deep Convolutional Neural Network (CNN) for the automatic classification of Scanning Electron Microscope (SEM) images of homogeneous (HNF) and nonhomogeneous nanofibers (NHNF) produced by electrospinnig process is presented. Specifically, SEM images are used as input of a Deep Learning (DL) framework consisting of: a Sobel filter based pre-processing stage followed by a CNN classifier. Here, such DL architecture is denoted as SoCNNet. The Polyvinylacetate (PVAc) SEM image of NHNF and HNF dataset collected at the Materials for Environmental and Energy Sustainability Laboratory of the University Mediterranea of Reggio Calabria (Italy) is used to evaluate the performance of the developed system. Experimental results (average accuracy rate up to 80.27%±0.0048 ) demonstrate the potential effectiveness of the proposed SoCNNet in the industrial chain of nanofibers production
Prime osservazioni sul rapporto tra il reato di “Diffusione illecita di immagini o video sessualmente espliciti” e le libertà di corrispondenza e di manifestazione del pensiero
No full textL’articolo concerne il rapporto tra il reato di “Diffusione illecita di immagini o video sessualmente espliciti” (art. 612-ter c.p.) e le libertà costituzionali di corrispondenza (art. 15 Cost.) e di manifestazione del pensiero (art. 21 Cost.). Nello specifico, l’Autore si chiede se il reato di cui all’art. 612-ter incida sulle libertà di cui all’art. 15 e all’art. 21
Cost. Invero, l’unico obiettivo del reo è quello di ledere l’identità morale e l’onorabilità della vittima. Per questo motivo, non deve indurre in errore la circostanza che la condotta descritta dall’art. 612-ter verrà (esclusivamente) posta in essere utilizzando mezzi di comunicazione, deputati alla trasmissione del pensiero. Infatti, l’Autore ritiene che il fondamento costituzionale dell’art. 612-ter c.p. è da rinvenirsi negli artt. 2, 3 e 13 (intesa quale libertà di autodeterminarsi) Cost., mentre la libertà di corrispondenza e la libertà di manifestazione del pensiero non vengono compresse dal reato in esame.The paper concerns the relationship between the crime of “Illicit distribution of sexually explicit images or videos” (Article 612-ter of the Italian Criminal Code) and the constitutional freedoms of correspondence and expression of thought.
Specifically, the Author reflects on whether the offence under art. 612-ter affects the freedoms pursuant to Article 15 and Article 21 of the Constitution. Indeed, the offender’s sole objective is to damage the victim’s moral identity and reputation. For this reason, we should not be misled by the fact that the conduct targeted in Article 612-ter may (exclusively) be implemented using means of communication designed for the transmission of thought. In fact, the Author believes that the constitutional foundation for art. 612-ter of the Italian Criminal Code is to be found in Articles 2, 3 and 13 of the Constitution (regarding the freedom of self-determination), while the freedom of correspondence and freedom of expression of thought are not restricted by the crime in question
A historia e as histórias de Cosimo
No full textPublicado em 1957 e inserido na trilogia I nostri antenati em 1965, Il barone rampante de Italo Calvino retrata as mudanças ocorridas no século XVIII na Europa, através da insólita vida de Cosimo, o barão que viveu sobre as árvores. Cosimo pode ser lido como um microcosmo do período em questão e, através da narrativa de suas aventuras, é possível traçar um percurso intelectual do homem ocidental. Este trabalho tem por objetivos discutir as relações entre Ficção e História, através das análises estrutural e discursiva de Il barone rampante, e analisar a formação intelectual e de valores do protagonista, paralela a uma genealogia do romance, apresentada na obra. Para tanto, verificaremos a relação dos romances aos quais Il barone rampante faz referências com o crescimento do público leitor e com o nascimento e o amadurecimento do gênero literário que surge no berço da sociedade burguesa: o romance. Também serão discutidas as influências das obras iluministas no pensamento e nas ações do personagem, uma vez que, na figura de Cosimo, vemos um personagem leitor, inventor, filósofo e contador de histórias. Para o estudo da relação entre Ficção e História, privilegiaremos a reflexão metaficcional que aparece na voz do narrador, numa discussão sobre o papel do historiador e do escritor literário e a tênue linha que os separa. Aliada a essa discussão, verificaremos o posicionamento estético e ideológico de Calvino diante de suas reflexões ensaísticas sobre o papel da literatura e do intelectual na contemporaneidade.Published in 1957 and joined to the Our Ancestors trilogy in 1965, The Baron in the Trees, by Italo Calvino, is a portrait of the changes in Europe during the 18th century, shown through the preposterous life of Cosimo, the baron that lived in the trees. Cosimo can be interpreted as a microcosm of the 18th century, and the tale of his adventures is a way to trace the intellectual journey of the West. The present work aims to discuss the relationship between history and fiction with the structural and discursive analysis of The Baron in the Trees, and to analyze the intellectual and moral coming of age of the main character, along with a genealogy of the novel, presented in Calvino's work. To that end, we will show the relationship between the novels The Baron in the Trees alludes to and the growth of the readership, the birth and the coming of age of the literary genre that is part of the origins of the bourgeois society: the novel. We will also discuss the impact of the Enlightenment on the thoughts and actions of the main character, since, in the person of Cosimo, we see a reader, an inventor, a philosopher and a storyteller. To study the relationship between fiction and history, we shall prioritize the metafictional reflexion that appears in the narrator's voice, in a discussion about the role of the historian and the author and the thin line that keeps them apart. We will also investigate Calvino's aesthetic and ideological position in his reflexions on the role of literature and of the scholars in the modern world.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
A historia e as histórias de Cosimo
No full textPublicado em 1957 e inserido na trilogia I nostri antenati em 1965, Il barone rampante de Italo Calvino retrata as mudanças ocorridas no século XVIII na Europa, através da insólita vida de Cosimo, o barão que viveu sobre as árvores. Cosimo pode ser lido como um microcosmo do período em questão e, através da narrativa de suas aventuras, é possível traçar um percurso intelectual do homem ocidental. Este trabalho tem por objetivos discutir as relações entre Ficção e História, através das análises estrutural e discursiva de Il barone rampante, e analisar a formação intelectual e de valores do protagonista, paralela a uma genealogia do romance, apresentada na obra. Para tanto, verificaremos a relação dos romances aos quais Il barone rampante faz referências com o crescimento do público leitor e com o nascimento e o amadurecimento do gênero literário que surge no berço da sociedade burguesa: o romance. Também serão discutidas as influências das obras iluministas no pensamento e nas ações do personagem, uma vez que, na figura de Cosimo, vemos um personagem leitor, inventor, filósofo e contador de histórias. Para o estudo da relação entre Ficção e História, privilegiaremos a reflexão metaficcional que aparece na voz do narrador, numa discussão sobre o papel do historiador e do escritor literário e a tênue linha que os separa. Aliada a essa discussão, verificaremos o posicionamento estético e ideológico de Calvino diante de suas reflexões ensaísticas sobre o papel da literatura e do intelectual na contemporaneidade.Published in 1957 and joined to the Our Ancestors trilogy in 1965, The Baron in the Trees, by Italo Calvino, is a portrait of the changes in Europe during the 18th century, shown through the preposterous life of Cosimo, the baron that lived in the trees. Cosimo can be interpreted as a microcosm of the 18th century, and the tale of his adventures is a way to trace the intellectual journey of the West. The present work aims to discuss the relationship between history and fiction with the structural and discursive analysis of The Baron in the Trees, and to analyze the intellectual and moral coming of age of the main character, along with a genealogy of the novel, presented in Calvino's work. To that end, we will show the relationship between the novels The Baron in the Trees alludes to and the growth of the readership, the birth and the coming of age of the literary genre that is part of the origins of the bourgeois society: the novel. We will also discuss the impact of the Enlightenment on the thoughts and actions of the main character, since, in the person of Cosimo, we see a reader, an inventor, a philosopher and a storyteller. To study the relationship between fiction and history, we shall prioritize the metafictional reflexion that appears in the narrator's voice, in a discussion about the role of the historian and the author and the thin line that keeps them apart. We will also investigate Calvino's aesthetic and ideological position in his reflexions on the role of literature and of the scholars in the modern world.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Secretaria de Educaçã
Una lettera odeporica di Cosimo De Giorgi
No full textEnWhile the first half of the nineteenth century saw the inauguration of a penchant for local and circumscribed itineraries, Cosimo De Giorgi, in a long and detailed letter to a friend from Pisa (later given to the press), sets out his brief experience of a railroad journey from Bari to Taranto. It is a report that skillfully combines technical and naturalistic information about the territory with sketchy descriptions of the places, but it is also embellished with notes on the author's state of mind and with his erudite observations. The essay aims to frame this lesser-known text by the eclectic Salento author within the framework of nineteenth-century odeporics by noting its characters and specificities.ItMentre nella prima metà dell'Ottocento si inaugura l'inclinazione per il percorso di itinerari locali e circoscritti, Cosimo De Giorgi, in una lunga e dettagliata lettera ad un amico pisano poi data alle stampe, espone la sua breve esperienza di un viaggio in ferrovia da Bari a Taranto. Si tratta di una relazione che coniuga sapientemente informazioni di carattere tecnico e naturalistico sul territorio a descrizioni bozzettistiche dei luoghi, ma che è anche impreziosita da appunti sullo stato d'animo dell'autore e dalle sue erudite osservazioni. Il saggio si propone di inquadrare questo testo meno noto dell'eclettico autore salentino nell'alveo dell'odeporica ottocentesca rilevandone caratteri e specificità
A historia e as histórias de Cosimo
No full textPublicado em 1957 e inserido na trilogia I nostri antenati em 1965, Il barone rampante de Italo Calvino retrata as mudanças ocorridas no século XVIII na Europa, através da insólita vida de Cosimo, o barão que viveu sobre as árvores. Cosimo pode ser lido como um microcosmo do período em questão e, através da narrativa de suas aventuras, é possível traçar um percurso intelectual do homem ocidental. Este trabalho tem por objetivos discutir as relações entre Ficção e História, através das análises estrutural e discursiva de Il barone rampante, e analisar a formação intelectual e de valores do protagonista, paralela a uma genealogia do romance, apresentada na obra. Para tanto, verificaremos a relação dos romances aos quais Il barone rampante faz referências com o crescimento do público leitor e com o nascimento e o amadurecimento do gênero literário que surge no berço da sociedade burguesa: o romance. Também serão discutidas as influências das obras iluministas no pensamento e nas ações do personagem, uma vez que, na figura de Cosimo, vemos um personagem leitor, inventor, filósofo e contador de histórias. Para o estudo da relação entre Ficção e História, privilegiaremos a reflexão metaficcional que aparece na voz do narrador, numa discussão sobre o papel do historiador e do escritor literário e a tênue linha que os separa. Aliada a essa discussão, verificaremos o posicionamento estético e ideológico de Calvino diante de suas reflexões ensaísticas sobre o papel da literatura e do intelectual na contemporaneidade.Published in 1957 and joined to the Our Ancestors trilogy in 1965, The Baron in the Trees, by Italo Calvino, is a portrait of the changes in Europe during the 18th century, shown through the preposterous life of Cosimo, the baron that lived in the trees. Cosimo can be interpreted as a microcosm of the 18th century, and the tale of his adventures is a way to trace the intellectual journey of the West. The present work aims to discuss the relationship between history and fiction with the structural and discursive analysis of The Baron in the Trees, and to analyze the intellectual and moral coming of age of the main character, along with a genealogy of the novel, presented in Calvino's work. To that end, we will show the relationship between the novels The Baron in the Trees alludes to and the growth of the readership, the birth and the coming of age of the literary genre that is part of the origins of the bourgeois society: the novel. We will also discuss the impact of the Enlightenment on the thoughts and actions of the main character, since, in the person of Cosimo, we see a reader, an inventor, a philosopher and a storyteller. To study the relationship between fiction and history, we shall prioritize the metafictional reflexion that appears in the narrator's voice, in a discussion about the role of the historian and the author and the thin line that keeps them apart. We will also investigate Calvino's aesthetic and ideological position in his reflexions on the role of literature and of the scholars in the modern world.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES
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