Search results for " Rob"
showing 10 items of 689 documents
Il trattato L’Amore e la «legge dell’egoismo universale»: il positivismo inquieto di Federico De Roberto
2018
L’Amore. Fisiologia – Psicologia – Morale is probably the highest level of De Roberto’s ideology, and at same time it may be considered as a turning point in the poetic of this author. De Roberto lives in a Positivist age, and he deeply trusts in the instrument of reason. In this work he aims to demonstrate all the contradictions of love and the egoism of the social life. So, De Roberto arrives to a uneasy Positivism, which is focused not only on the “how” of the phenomena, but also to the “why”. Under this point of view, De Roberto’s relativism is similar to that one of Pirandello, and it announces the incoming Modernism. Even if it is impossible to join the truth, De Roberto doesn’t quit …
Robot-based incremental sheet forming – the tool path planning
2021
Abstract To achieve a 3D shape with certain degree of complexity from metal sheets that are flat in the beginning, especially for prototype development or small series production, that is also cost efficient by avoiding high-end dies or expensive tooling, the incremental sheet forming process can represent the ideal choice due to its flexibility, reduced forming forces and increased formability. The process is performed with a round tool that follows a predefined path to deform the flat metal sheet into its final shape. The proper selection of the toolpaths affects the productivity and the accuracy of each part. The process having to focus on forming each single point in increments. For cos…
Obstacle Detection in an Unstructured Industrial Robotic System: Comparison of Hidden Markov Model and Expert System
2012
Abstract This paper presents a comparison of two approaches for detecting unknown obstacles inside the workspace of an industrial robot using a laser rangefinder for 2-D measurements. The two approaches are based on Expert System (ES) and Hidden Markov Model (HMM). The results presented in the paper demonstrate that both approaches are able to correctly detect and classify unknown objects. The ES is characterised by low computational requirements and an easy setup when relatively few known objects are to be included inside the workspace. HMMs are characterised by a higher flexibility and the ability to handle a larger amount of known objects inside the workspace. Another significant benefit…
Design of a modular locomotion system for autonomous mobile robots
2021
Autonomous mobile robots are becoming more popular today and are successfully integrated into many civil and industrial projects. In the industrial sectors flexibility and modularity have an important role, so the production can be diversified and achieved with low costs. This paper presents the conceptual and functional design of a modular locomotion system for an autonomous mobile platform that can be configured according to the needs of the industrial environment it serves. The architecture of the locomotion system is based on a spring suspension system and three types of wheels: conventional wheels, omnidirectional wheels and mechanum wheels. The calculations for the chosen suspension s…
Robustness Analysis of DCE-MRI-Derived Radiomic Features in Breast Masses: Assessing Quantization Levels and Segmentation Agreement
2022
Featured Application The use of highly robust radiomic features is fundamental to reduce intrinsic dependencies and to provide reliable predictive models. This work presents a study on breast tumor DCE-MRI considering the radiomic feature robustness against the quantization settings and segmentation methods. Machine learning models based on radiomic features allow us to obtain biomarkers that are capable of modeling the disease and that are able to support the clinical routine. Recent studies have shown that it is fundamental that the computed features are robust and reproducible. Although several initiatives to standardize the definition and extraction process of biomarkers are ongoing, th…
Identification and Robust Control of a Quadratic DC/DC Boost Converter by Hammerstein Model
2015
This paper deals with the theoretical framework definition and the experimental application of the Hammerstein (HM) identification and related robust control technique to a quadratic dc/dc single-switch boost (Q-boost) converter. A set of fourth-order transfer functions (TFs) has been identified with the Hammerstein approach, on the basis of a pseudorandom-binary-sequence (PRBS) excitation signal. The set of identified TFs has been then used to design a suitable robust control technique, able to properly deal with the converter parameter uncertainty and load variations. The proposed approach has been tested in numerical simulation and validated experimentally on a suitably developed test se…
Recensione a Francesco Robortello. Réception des Anciens et construction de la modernité, sous la direction de M. Bouquet, S. Cappello, C. Lesage et …
2021
Recensione a Francesco Robortello. Réception des Anciens et construction de la modernité, sous la direction de M. Bouquet, S. Cappello, C. Lesage et M. Magnien, Rennes, Presses Universitaires de Rennes, 2020, pp. 508. Il volume accoglie gli atti del Colloquio Internazionale dedicato all’umanista friulano Francesco Robortello (1516-1567), svoltosi a Rennes fra il 6 e l’8 ottobre 2016. Apparso nel 2020, a quattro anni di distanza dalla sua celebrazione, il volume comprende complessivamente 23 interventi di studiosi francesi, italiani, tedeschi e statunitensi – tutti pubblicati in lingua francese, a eccezione di cinque in italiano. Review to Francesco Robortello. Réception des Anciens et const…
Edició hipertextual, multilingüe i anotada de Friar Bungay de Robert Greene (1594): exploració d'eines digitals en l'edició i traducció del teatre an…
2019
Els objectius de la present tesi són quatre i comporten l’aplicació de tres disciplines: crítica textual, traductologia i tractament digital de textos, que rau completament dins les Humanitats Digitals. Aquests objectius i disciplines se centren en la comèdia The Honourable History of Friar Bacon and Friar Bungay de Robert Greene, publicada en Londres l’any 1594, i convergeixen en l'elaboració d'una edició hipertextual i multilingüe d'aquesta comèdia per a la col·lecció EMOTHE (Early Modern European Theatre), del grup de recerca ARTELOPE a la Universitat de València. La tesi és llavors en part una posada en pràctica del mètode de treball d’aquest grup d’investigació que segueix el següent e…
Comparison of Internal Clustering Validation Indices for Prototype-Based Clustering
2017
Clustering is an unsupervised machine learning and pattern recognition method. In general, in addition to revealing hidden groups of similar observations and clusters, their number needs to be determined. Internal clustering validation indices estimate this number without any external information. The purpose of this article is to evaluate, empirically, characteristics of a representative set of internal clustering validation indices with many datasets. The prototype-based clustering framework includes multiple, classical and robust, statistical estimates of cluster location so that the overall setting of the paper is novel. General observations on the quality of validation indices and on t…
Robots Like Me: Challenges and Ethical Issues in Aged Care.
2018
Robots have become a big issue in the twenty-first century, not least in elderly assistance. There are hopes that robots will make aged-care jobs less demanding, for example, they could help senior citizens maintain a longer independent life in their own home, assist caregivers in the nursing home, or provide company to the lonely. However, there are different opinions about the use of robots in our society. In 2012, a survey was conducted in 27 EU countries to examine the public's attitudes toward robots (Special Eurobarometer 382).1 More than 26.000 European citizens responded about the areas where they believe robots should be used as a priority or banned. The survey indicated that, in g…