Search results for "Clos"

FIRST RECORD IN TUNISIA OF CLOSTEROCERUS CHAMAELEON (GIRAULT) PARASITOID OF THE EUCALYPTUS GALLWASP OPHELIMUS MASKELLI (ASHMEAD) (Hymenoptera Eulophi…

2010

Closterocerus chamaeleon (Girault) (Hymenoptera Eulophidae), parasitoid of the Eucalyptus gall wasp Ophelimus maskelli (Ashmead) (Hymenoptera Eulophidae) has been recorded for the first time in Tunisia in July 2007. This record suggests that 14 months after its release in Sicily, in May 2006, it has spread over Sicily Channel.

A high computing bioinformatic approach based on GRID for detecting recombination in whole Citrus Tristeza Virus genome

2007

Sub-Optimal Control Law for Active Magnetic Bearings Suspension

2012

This paper deals with the comparison of three types of sub-optimal control law for the stable levitation of a turbojet shaft, sustained by two radial active magnetic bearings (AMBs). Shaft is considered rigid for the procedure simplification. The utilized approach leads to development of different sub-optimal control laws to use in speed-varying simulations in the angular speed of the shaft. The first control matrix is obtained by explicit relationships of the parameters of the control law vs. speed, obtained using a curve-fitting procedure neglecting the speed-varying elements out of the main diagonal of each single block constituting the entire control matrix. The second control law is ob…

A novel Reverse Electrodialysis application to generate power from low-grade heat

2015

A novel idea for the conversion of low-temperature heat into electricity is based on the generation of electricity from salinity gradients using a Reverse Electrodialysis (RED) device in a closed-loop system. In this concept a limited amount of artificial saline solutions can be used as the working fluids in a closed-loop. The solutions exiting from the RED unit are then regenerated, in order to restore the original salinity gradient, by means of a separation step, which uses low-temperature heat (40-100°C) as its energy source. A theoretical analysis of potentials of this technology is illustrated in the present work.

Reverse electrodialysis with NH4HCO3-water systems for heat-to-power conversion

2017

Abstract A Reverse ElectroDialysis Heat Engine (REDHE) system operating with “thermolytic” ammonium hydrogen-carbonate (NH4HCO3) aqueous solutions as working fluids is studied. The engine is constituted by (i) a RED unit to produce electric power by mixing the solutions at different salinity and (ii) a thermally-driven regeneration unit including a stripping and an absorption column to restore the initial salinity gradient thus closing the cycle. In the present work only the RED unit and the stripping column are taken into account. In particular, a simplified integrated process model for the whole cycle was developed: it consists of (i) a lumped parameter model for the RED unit validated wi…

Continuous hand openness detection using a Kinect-like device

2014

This paper presents a novel method to reproduce in real time the opening and closing gestures of a human hand, animating a three-dimensional model of it. In other works, this result can be achieved by mapping a set of significant points of a real hand on the corresponding points of the model to animate. We propose an alternative way to produce the same effect without mapping points, but using a level-based estimation of the degree of opening of the hand. The experiments have been executed using Microsoft KinectTM, but the method would work on any other Kinect-like devices (as defined herein). The results obtained are particularly encouraging and demonstrate real-time performance of the syst…

ConformalALU: A Conformal Geometric Algebra Coprocessor for Medical Image Processing

2015

Medical imaging involves important computational geometric problems, such as image segmentation and analysis, shape approximation, three-dimensional (3D) modeling, and registration of volumetric data. In the last few years, Conformal Geometric Algebra (CGA), based on five-dimensional (5D) Clifford Algebra, is emerging as a new paradigm that offers simple and universal operators for the representation and solution of complex geometric problems. However, the widespread use of CGA has been so far hindered by its high dimensionality and computational complexity. This paper proposes a simplified formulation of the conformal geometric operations (reflections, rotations, translations, and uniform …

IL CRITERIO DELLA “SUFFICIENTLY CLOSE CONNECTION” ED IL SUO RAPPORTO CON IL PRINCIPIO DEL NE BIS IN IDEM SANZIONATORIO NELLA GIURISPRUDENZA DELLA COR…

2018

Nel definire la portata garantista del principio del ne bis in idem sanzionatorio la Corte EDU ha certamente giocato un ruolo di primaria importanza. Sembra, tuttavia, che la Grande Camera abbia recentemente inteso circoscriverne l’ambito di operativita`, ritenendolo non applicabile nei casi in cui sia ravvisabile il criterio della “sufficiently close connection in substance and time”. Un criterio che era gia` presente nella giurisprudenza della Corte di Strasburgo ma che adesso la Grande Camera ha strutturato nella forma piu`definita di un test, identificando i c.d. material factors che ne individuano la sussistenza. In cio` si e` visto un possibile ridimensionamento del campo di applicazi…

Alcune figure della diserzione nell'opera di Pavese

2022

Deserting Characters in Pavese’s Work ∙ Pavese’s experience of World War ii has been widely controversial. Anti-fascist without joining the Italian Resistance, Pavese reimagines his nonparticipation to the confict across several of his post-1945 works. The essay ofers a thematic reading on deserting fgures in some poems from La terra e la morte, in I due (included in Dialogues with Leucò), in the novel The House on the Hill. The reading brings out the torn and evolving development of the issue of deserting in Pavese’s oeuvre.

Development and Maintenance of Self-Disclosure on Facebook: The Role of Personality Traits

2019

This study explored the relationships between Facebook self-disclosure and personality traits in a sample of Italian users. The aim was to analyze the predictive role of Big Five personality traits on different parameters of breadth and depth of self-disclosed behaviors online. Facebook users, aged between 18 and 64 years of age ( M age = 25.3 years, SD = 6.8; N = 958), of which 51% were female, voluntarily completed an online survey assessing personality traits and Facebook self-disclosure. Results at a series of hierarchical regression analyses significantly corroborated the hypotheses that high extroverted and openness people tend to disclose on Facebook a significant amount of personal …