Fuji-SfM dataset: A collection of annotated images and point clouds for Fuji apple detection and location using structure-from-motion photogrammetry

The present dataset contains colour images acquired in a commercial Fuji apple orchard (Malus domestica Borkh. cv. Fuji) to reconstruct the 3D model of 11 trees by using structure-from-motion (SfM) photogrammetry. The data provided in this article is related to the research article entitled “Fruit detection and 3D location using instance segmentation neural networks and structure-from-motion photogrammetry” [1]. The Fuji-SfM dataset includes: (1) a set of 288 colour images and the corresponding annotations (apples segmentation masks) for training instance segmentation neural networks such as Mask-RCNN; (2) a set of 582 images defining a motion sequence of the scene which was used to generate the 3D model of 11 Fuji apple trees containing 1455 apples by using SfM; (3) the 3D point cloud of the scanned scene with the corresponding apple positions ground truth in global coordinates. With that, this is the first dataset for fruit detection containing images acquired in a motion sequence to build the 3D model of the scanned trees with SfM and including the corresponding 2D and 3D apple location annotations. This data allows the development, training, and test of fruit detection algorithms either based on RGB images, on coloured point clouds or on the combination of both types of data. Dades primàries associades a l'article http://hdl.handle.net/10459.1/68505This work was partly funded by the Secretaria d'Universitats i Recerca del Departament d'Empresa i Coneixement de la Generalitat de Catalunya (grant 2017 SGR 646), the Spanish Ministry of Economy and Competitiveness (project AGL2013-48297-C2-2-R) and the Spanish Ministry of Science, Innovation and Universities (project RTI2018-094222-B-I00). Part of the work was also developed within the framework of the project TEC2016-75976-R, financed by the Spanish Ministry of Economy, Industry and Competitiveness and the European Regional Development Fund (ERDF). The Spanish Ministry of Education is thanked for Mr. J. Gené’s pre-doctoral fellowships (FPU15/03355)

Segregated Runge–Kutta time integration of convection-stabilized mixed finite element schemes for wall-unresolved LES of incompressible flows

In this work, we develop a high-performance numerical framework for the large eddy simulation (LES) of incompressible flows. The spatial discretization of the nonlinear system is carried out using mixed finite element (FE) schemes supplemented with symmetric projection stabilization of the convective term and a penalty term for the divergence constraint. These additional terms introduced at the discrete level have been proved to act as implicit LES models. In order to perform meaningful wall-unresolved simulations, we consider a weak imposition of the boundary conditions using a Nitsche’s-type scheme, where the tangential component penalty term is designed to act as a wall law. Next, segregated Runge–Kutta (SRK) schemes (recently proposed by the authors for laminar flow problems) are applied to the LES simulation of turbulent flows. By the introduction of a penalty term on the trace of the acceleration, these methods exhibit excellent stability properties for both implicit and explicit treatment of the convective terms. SRK schemes are excellent for large-scale simulations, since they reduce the computational cost of the linear system solves by splitting velocity and pressure computations at the time integration level, leading to two uncoupled systems. The pressure system is a Darcy-type problem that can easily be preconditioned using a traditional block-preconditioning scheme that only requires a Poisson solver. At the end, only coercive systems have to be solved, which can be effectively preconditioned by multilevel domain decomposition schemes, which are both optimal and scalable. The framework is applied to the Taylor–Green and turbulent channel flow benchmarks in order to prove the accuracy of the convection-stabilized mixed FEs as LES models and SRK time integrators. The scalability of the preconditioning techniques (in space only) has also been proven for one step of the SRK scheme for the Taylor–Green flow using uniform meshes. Moreover, a turbulent flow around a NACA profile is solved to show the applicability of the proposed algorithms for a realistic problem.Peer ReviewedPostprint (author's final draft

Annotated review of the Cantharidae and Malachiidae (Coleoptera) of the Maltese Islands

The Cantharidae and Malachiidae (Coleoptera) of the Maltese Islands are reviewed. Six species of the family Cantharidae are listed, two of which are new for the Maltese Islands: Cantharis praecox Gené, 1836, and Malthinus latirufus (Pic, 1901). Malthinus pseudoscriptus Wittmer, 1971, syn. nov. is synonymized with Malthinus scapularis Marseul, 1878. Male last abdominal segments of Malthodes cameroni (Pic, 1903) are illustrated for the first time. Fourteen species of the family Malachiidae are listed, four of which are new for the Maltese Islands: Sphinginus lobatus (Olivier, 1790), Attalus sicanus Erichson, 1840, Ebaeus ruffoi Pardo, 1962, and Axinotarsus pulicarius (Fabricius, 1775). Attalus melitensis var. testaceipes Pic, 1903, syn. nov. is synonymized with Attalus sicanus Erichson, 1840.peer-reviewe

GRUP GI-IDES: Xarxa per l'Aprenentatge Autònom, XAA

Membres del grup: Joan Rué, Miquel Amador, Alejandra Bosco, Pedagogia Aplicada; Jordi Gené, Isabel Pividori, Química Orgànica; Xavier Rambla, Sara Moreno, Sociologia; Carme Bastué, Pilar Sánchez, Olga Torres-Hostench, Traducció

Gabriel Alomar, el futurismo y Vicente Huidobro

Abstract not availabl

'I don't come from the past, I come from now': AIDS and temporality in three Catalan texts

This article analyses literary representations of HIV/AIDS in Catalan against the background of current debates in Queer Theory about sexuality and temporality, taking into account the invisibility of the disease within Catalan culture, which is symptomatic of a representational crisis. Through a psychoanalytic reading of Maria Antònia Oliver's Tallats de lluna (2000), Xavier Fernández i Gené's Del roig al vermell (1999) and Pepe Sales's Sense re, sense remei (2009), the essay raises three questions related to AIDS, sexuality, subjectivity, and temporality. Firstly, what do the temporal relations and structures in the representations of AIDS available in Catalan tell us about subjectivity with regards to finitude, contingency, and mortality? What does it mean to read literary representations of AIDS in 2012, when this very act seems an anachronism? Finally, what do these representations tell us about the nature of witnessing and its ethical implications, especially when witnessing involves speaking on somebody else's behalf? The essay argues that these texts and their marginal position within contemporary Catalan literature raise questions about the effects of the ideologies of canonicity on the representation of illness and, more specifically, the representation of HIV/AIDS. It is precisely the marginal status of these texts, the critical oblivion to which they have been subjected, that makes them appear almost as archaeological objects outside their time, as anachronistic as the gesture of discussing AIDS today. I argue, however, that such a critical gesture and its corresponding focus on temporality, mortality, and remembrance, are crucial for understanding the present condition of Catalan culture

Manual de Facebook (Feb. 2013)

Aplicaciones de Twitter a la enseñanza Universitaria Cuarto módulo de 6 del curso de Redes Sociales aplicadas al ámbito universitario, en el que se explica el uso de Facebook

L'hospital de Vilallonga de Ter

Entre els reculls histories de Mn. Julia Pascual ¡ Pagèes, Rector de Vilallonga de Ter, existeix aquest curiòs document vinculat amb la història dels hospitals de Catalunya. Vilallonga de Ter és un municipi del Ripolles, Camprodón. Actualment té 500 habitants i en el 1860 en tenia 1216. El document, incloses les clàusules de testament per la fundació del centre està escrit en català antic..