Search results for "Modelli"
showing 10 items of 1866 documents
Modelling of FRP and FRCM-Confined Masonry Columns: Critical Review for Design and Intervention Strategies
2022
This paper presents a critical review of the most established analytical models for the prediction of the compressive strength of FRP and FRCM-confined masonry columns. In particular, two types of fibres are analysed, i.e. glass and basalt. A wide dataset available in the literature is used for the application of the analytical models and for the development of parametric analyses useful for the critical comparison of FRP vs. FRCM confinement technique and glass vs. basalt fibres to be adopted as reinforcement of masonry substrate. The effects of stiffness and strength of the reinforcement, the number of reinforcing layers, the compressive strength of masonry and the cross-section shape are…
Data from: Parallel diversifications of Cremastosperma and Mosannona (Annonaceae), tropical rainforest trees tracking Neogene upheaval of South Ameri…
2017
Much of the immense present day biological diversity of Neotropical rainforests originated from the Miocene onwards, a period of geological and ecological upheaval in South America. We assess the impact of the Andean orogeny, drainage of lake Pebas, and closure of the Panama Isthmus on two clades of tropical trees (Cremastosperma, c. 31 spp.; and Mosannona, c. 14 spp.; both Annonaceae). Phylogenetic inference revealed similar patterns of geographically restricted clades and molecular dating showed diversifications in the different areas occurred in parallel, with timing consistent with Andean vicariance and Central American geodispersal. Ecological niche modelling approaches show phylogenet…
A second strain gradient elasticity theory with second velocity gradient inertia – Part II: Dynamic behavior
2013
Abstract This paper is the sequel of a companion Part I paper devoted to the constitutive equations and to the quasi-static behavior of a second strain gradient material model with second velocity gradient inertia. In the present Part II paper, a multi-cell homogenization procedure (developed in the Part I paper) is applied to a nonhomogeneous body modelled as a simple material cell system, in conjunction with the principle of virtual work (PVW) for inertial actions (i.e. momenta and inertia forces), which at the macro-scale level takes on the typical format as for a second velocity gradient inertia material model. The latter (macro-scale) PVW is used to determine the equilibrium equations …
A gradient elasticity theory for second-grade materials and higher order inertia
2012
Abstract Second-grade elastic materials featured by a free energy depending on the strain and the strain gradient, and a kinetic energy depending on the velocity and the velocity gradient, are addressed. An inertial energy balance principle and a virtual work principle for inertial actions are envisioned to enrich the set of traditional theoretical tools of thermodynamics and continuum mechanics. The state variables include the body momentum and the surface momentum, related to the velocity in a nonstandard way, as well as the concomitant mass-accelerations and inertial forces, which do intervene into the motion equations and into the force boundary conditions. The boundary traction is the …
LA CREAZIONE DI SCUOLE PER GENITORI NELLE ISTITUZIONI PUBBLICHE
2013
L’Unità di ricerca di Pedagogia generale e sociale del Dipartimento di psicologia e di scienze dell’educazione dell’Università di Palermo, d’intesa con le cattedre di Pedagogia della famiglia e di Educazione degli adulti della Facoltà di Scienze della formazione e col supporto logistico e organizzativo dell’Associazione Italiana Maestri Cattolici della Regione Sicilia, ha condotto negli anni scolastici 2010/2011 e 2011/2012, un percorso di formazione di insegnanti animatori di educazione familiare. Ci si è avvalsi della collaborazione del Centro studi pedagogici sulla vita matrimoniale e familiare, istituzione di eccellenza della sede bresciana dell’Università Cattolica del Sacro Cuore, dir…
Anna Banti e lo sguardo narrante. Modelli, poetica e stile tra gusto figurativo, autobiografismo e storia.
2011
Modelling the dynamics of the students’ academic performance in the German region of the North Rhine-Westphalia: an epidemiological approach with unc…
2013
Student academic underachievement is a concern of paramount importance in Europe, where around 15% of the students in the last high school courses do not achieve the minimum knowledge academic requirement. In this paper, we propose a model based on a system of differential equations to study the dynamics of the students academic performance in the German region of North Rhine-Westphalia. This approach is supported by the idea that both, good and bad study habits, are a mixture of personal decisions and influence of classmates. This model allows us to forecast the student academic performance by means of confidence intervals over the next few years.
Forecasting Aquaponic Systems Behaviour With Recurrent Neural Networks Models
2022
Aquaponic systems provide a reliable solution to grow vegetables while cultivating fish (or other aquatic organisms) in a controlled environment. The main advantage of these systems compared with traditional soil-based agriculture and aquaculture installations is the ability to produce fish and vegetables with low water consumption. Aquaponics requires a robust control system capable of optimizing fish and plant growth while ensuring a safe operation. To support the control system, this work explores the design process of Deep Learning models based on Recurrent Neural Networks to forecast one hour of pH values in small-scale industrial Aquaponics. This implementation guides us through the m…
The Windy clustered prize-collecting arc-routing problem
2011
This paper introduces the windy clustered prize-collecting arc-routing problem. It is an arc-routing problem where each demand edge is associated with a profit that is collected once if the edge is serviced, independent of the number of times the edge is traversed. It is further required that if a demand edge is serviced, then all the demand edges of its component are also serviced. A mathematical programming formulation is given and some polyhedral results including several facet-defining and valid inequalities are presented. The separation problem for the different families of inequalities is studied. Numerical results from computational experiments are analyzed. © 2011 INFORMS.
Ricostruzione virtuale dei resti archeologici: sperimentazione di approcci integrati innovativi per lo studio e la valorizzazione dell’area sacra del…
2022
Il progetto di cui si presentano i risultati è rivolto all’ambito delle Scienze applicate al Patrimonio culturale e, nella fattispecie, all’applicazione di metodologie e tecnologie innovative di ricostruzione virtuale di supporto allo studio, alla valorizzazione e alla fruizione innovativa dei beni archeologici. Esso ha richiesto, per l’acquisizione delle competenze necessarie alla sua conduzione, lo svolgimento di uno stage presso la Virtutim srl in Roma, per la formazione all’uso delle tecniche di rilievo 3D e dei software di grafica e modellazione virtuale con cui sono stati realizzati i contenuti multimediali presentati di seguito, nonché un periodo di studio all’estero, presso l’Instit…