Search results for " project"

CFD analysis of concentration polarization phenomena in spacer-filled channels for Reverse Electro-Dialysis

2012

In this work, carried out within the EU-FP7 funded REAPower project, CFD simulations were carried out in order to study the fluid flow behaviour and mass transport phenomena within spacer-filled channels.

Reverse Electrodialysis with seawater and concentrated brine: a comprehensive process modelling

2012

Grid-forming converters. A critical review of pilot projects and demonstrators

2022

Grid-forming control can be a useful solution for all dynamic issues in weak grids and for providing ancillary services. It represents the new frontier in modern power electronics, responding to the needs of power systems more and more rich in renewables and, for this reason, with lower inertia. Today, the research on grid-forming is mainly oriented to propose new and more effective control schemes and to evaluate their performances with simulation tools, but few works in the literature focus on the results of on-field experimentation. Therefore, this paper aims to provide a comprehensive review of grid-forming pilot projects and demonstrators developed worldwide. The work describes the mai…

Pedestrian Tracking in 360 Video by Virtual PTZ Cameras

2018

Since the data acquired by a PTZ camera change while adjusting the pan, tilt and zoom parameters, the results of tracking algorithms are difficult to reproduce; such diffi- culty limits the development and the comparison of tracking algorithms with PTZ cameras. The recently introduced 360- degree cameras acquire spherical views of the environment, generally stored as equirectangular images. Each pixel of an equirectangular image corresponds to a point on the spherical surface. A gnomonic projection can be used to project the points on the spherical surface onto a plane tangent to the sphere. Such tangent plane can be interpreted as the image plane of a virtual PTZ camera oriented towards th…

XML-based Knowledge Discovery for Linguistic Atlas of Sicily (ALS) Project

2009

The identification of new useful patterns in data is a core process for intelligent systems. Information overflow is directly related to this problem. In this work we propose a knowledge discovery methodology to retrieve useful and novel information from raw data stored in a DBMS. We used ALSDB, a database that has been built suitably to access structured information obtained from the questionnaires produced in the Linguistic Atlas of Sicily (ALS) project. The ALS project is a decennal joint effort led by researchers at the Dipartimento di Scienze Filologiche e Linguistiche of the University of Palermo that has the purpose to track and study the geo-linguistic and lexicographic processes ab…

A Programmable Networked Processing Node for 3D Brain Vessels Reconstruction

2011

Real-time 3D imaging represents a developing trend in medical imaging. However, most of the 3D medical imaging algorithms are computationally intensive. In this paper, a programmable networked node for 3D brain vessels reconstruction is proposed. Starting from 2D PC-MRA (Phase-Contrast Magnetic Resonance Angiography) sequences, the node is able to generate the 3D brain vasculature using the MIP (Maximum Intensity Projection) algorithm. The node has been prototyped on the Celoxica RC203E board, equipped with a Virtex II FPGA, to get the advantages of an hardware implementation, reaching a better throughput with respect to analogous software implementations. Its generality and programmable ca…

360° Tracking Using a Virtual PTZ Camera

2017

Object tracking using still or PTZ cameras is a hard task for large spaces and needs several devices to completely cover the area or to track multiple subjects. The introduction of \(360^{\circ }\) camera technology offers a complete view of the scene in a single image and can be useful to reduce the number of devices needed in the tracking problem. In this paper we present a framework using \(360^{\circ }\) cameras to simulate an unlimited number of PTZ cameras and to be used for tracking. The proposed method to track a single target process an equirectangular view of the scene and obtains a model of the moving object in the image plane. The target is tracked analyzing the next frame of th…

An Approach to Enhance Chatbot Semantic Power and Maintainability: Experiences within the FRASI Project

2012

The paper illustrates the implementation and semantic enhancement of a domain-oriented Question-Answering system based on a pattern-matching chat bot technology, developed within an industrial project, named FRASI. The main difficulty in building a KB for a chat bot is to handwrite all possible question-answer pairs that constitute the KB. The proposed approach simplifies the chat bot realization thanks to two solutions. The first one uses an ontology, which is exploited in a twofold manner: to construct dynamic answers as a result of an inference process about the domain, and to automatically populate, off-line, the chat bot KB with sentences that can be derived from the ontology, describi…

Pre-convenzioni: un frammento dello Sfondo

2014

In this paper I argue that there exist conventions of a peculiar sort, which are neither norms nor regularities of behaviour, partaking of both. I proceed as follows. After a sketchy analysis of the meaning of ‘convention’, I give some examples of the kind of phenomena I have in mind: bodily skills, know-how, taste and style, habitus (P. Bourdieu), «disciplines» (M. Foucault). Then I group some arguments supporting my claim: (i) considerations about the identity conditions of precedents (D. Lewis) and about the projectibility of predicates in inductive inference generally (N. Goodman); (ii) thoughts about rule-following (L. Wittgenstein); (iii) an examination of some of J. R. Searle’s ideas…

Pre-conventions. A fragment of the Background

2016

In this paper I argue that there exist conventions of a peculiar sort which are neither norms nor regularities of behaviour, partaking of both. I proceed as follows. After a brief analysis of the meaning of ‘convention’, I give some examples of the kind of phenomena I have in mind: bodily skills, know-how, taste and style, habitus (P. Bourdieu), “disciplines” (M. Foucault). Then I group some arguments supporting my claim: (i) considerations about the identity conditions of precedents (D. Lewis) and about the projectibility of predicates in inductive inference generally (N. Goodman); (ii) thoughts about rule-following (L. Wittgenstein); (iii) an examination of some of J. R. Searle’s ideas ab…