187,300 research outputs found
P. Gregory, Teorie di architettura contemporanea. Percorsi del Postmodernismo, Carocci editore, Roma 2010. Recensione di P. Belfiore
No full textConversazione con Marco Petreschi
No full textColloquio sulle idee e sulle opere architettoniche di Marco Petreschi, all'interno d'una collana che comprende volumi dedicati a Portoghesi, Purini e Fuksas
Author Correction: Coronavirus disease 2019 (COVID-19) in Italy: features on chest computed tomography using a structured report system (Scientific Reports, (2020), 10, 1, (17236), 10.1038/s41598-020-73788-5)
No full textThe original version of this Article contained errors in the spelling of the authors Roberto Grassi, Roberta Fusco, Maria Paola Belfiore, Alessandro Montanelli, Gianluigi Patelli, Fabrizio Urraro, Antonella Petrillo, Vincenza Granata, Palmino Sacco, Maria Antonietta Mazzei, Beatrice Feragalli, Alfonso Reginelli & Salvatore Cappabianca which were incorrectly given as Grassi Roberto, Fusco Roberta, Belfiore Maria Paola, Montanelli Alessandro, Patelli Gianluigi, Urraro Fabrizio, Petrillo Antonella, Granata Vincenza, Sacco Palmino, Mazzei Maria Antonietta, Feragalli Beatrice, Reginelli Alfonso & Cappabianca Salvatore. These errors have now been corrected in the PDF and HTML versions of the Article
An Atlas of Remote Actuated Bevel-Gear Type Wrist Mechanisms of up to 9 Links
No full textAn atlas of topological and functional representations of bevel gear-type basic robotic wrists of up to nine links with all the actuators connected to the frame link is presented. Each wrist mechanism is depicted by means of a canonical diagram that can be adopted as a schematic model for the final constructive embodiment. The corresponding graphic representation is also shown, together with a reference number that classifies the structure through the concepts of nonfractionated degree of freedom and equivalent-open-loop chain
Micromanipulation: A Challenge for Actuation
No full textManipulating micro objects has become an important task in several applications. Actuation is a crucial aspect of micromanipulation because there are physical restrictions which affect actuators’ performances at the micro or nano scale. One way of getting rid of these limitations is the use of an appropriate mechanical structure which enhances the elasticity of the material or provides mechanical advantage. This Special Issue of Actuators, which is dedicated to micromanipulation, offers a contribution to the development of some promising methods to actuate a microsystem for micromanipulation
Isotropic compliance in E(3): Feasibility and workspace mapping
No full textA manipulator control system, for which isotropic compliance holds in the Euclidean
space Eð3Þ, can be significantly simplified by means of diagonal decoupling. However,
such simplification may introduce some limits to the region of the workspace where the
sought property can be achieved. The present investigation reveals how to detect which
peculiar subset, among four different classes, a given manipulator belongs to. The paper
also introduces the concept of control gain ratio for each specific single-input/single-output
joint control law in order to limit the maximum gain required to achieve the isotropic
compliance condition
RETURN TO FUNCTIONAL BETWEEN SPORTING ACTIVITY AND MOTOR ACTIVITY
No full textThe aim of the paper is to highlight the main aspects of functional re-education as a tool for the recovery of the athlete after an injury. Specifically, the fundamental stages of a re-education process have been outlined, considering the latter between sports and motor activities. Re-education is also considered as a tertiary prevention tool that not only optimizes routes, but is a potential source of savings. For this reason, the present work also considers the managerial implications deriving from the construction of a path that relies on a structural organization that influences the performance of the teams
Il piano di recupero e l'architettura della Mostra d'Oltremare, Napoli
No full textnapoli, mostra, piano urbanistic
Isotropic compliance in RRP planar manipulators
No full textIn the present paper, the isotropic compliance property is investigated, specifically focusing on RRP plane manipulators. The property is achieved by means of active stiffness regulation, considering three different control strategies, dependent on the joint exerting the control action. For each case, the analytical solutions and the corresponding workspace subsets are presented. To compare the three methods, the active and overall stiffness coefficients are evaluated in the postures defining the isotropic compliance subsets. The feasibility of the methods is also evaluated, considering the passive and active stiffness coefficients
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