Search results for "Michel"

Subjetivación y Feminismo: Análisis de un manifiesto político

2004

The theme of this article is the the Italian feminist movement of the 1980s. That movement was characterised by political transformation and a crtitique of identity. The article takes as its point of departure the inaugural speech of the movement, the manifesto "Piu donne che uomini" (1983). The analysis that we present is inspired in the work of Michel Foucault. It aims to show to that the production of new feministic subjectivities, when fighting the symbolic dimension of masculine domination, has an intrinsically political character. In the 1980s, in the Italian context and particularly in the feminist movement, the rules of the political game set up by the events of 1968 materialized. T…

Under Our Eye: Margaret Atwood's Variation on the Panopticon in "The Heart Goes Last"

2020

In her dystopian dark comedy The Heart Goes Last (2015), Margaret Atwood openly refers to Jeremy Bentham’s concept of the Panopticon. The future world depicted in her novel is filled with violence and deprived of both human bonds and hope. Hence, being contained, monitored and — after Foucault — disciplined and punished appears to be the characters’ last resort. Surveillance tempts both sexes as it is politically correct and universal, and it does not privilege one group of people over the other. The article discusses the dystopian vision of the near future as created by Atwood in her 2015 novel, with direct references to the conception of the Panopticon, both in its original meaning propos…

Dall’immagine all’indagine: la restituzione prospettica da foto d’epoca per la ricostruzione della chiesa di San Michele a Trapani

2022

La Chiesa di San Michele a Trapani, piccolo edificio religioso di impianto parzialmente rinascimentale, è stata demolita alla fine degli anni’50 del Novecento; di essa rimangono poche informazioni storiche e grafiche; la memoria della chiesa è oggi affidata a poche immagini fotografiche che raffigurano scroci dell’interno e di un fronte esterno. La tecnica della restituzione prospettica di foto d’epoca per la ricostruzione virtuale di edifici scomparsi è stata con successo applicata in recenti ricerche. La restituzione prospettica con metodi digitali si stacca dal piano dell’immagine per giungere, a seguito della determinazione degli schemi prospettici, alla ricostruzione tridimensionale de…

3. Embarqué

2010

Numerical analysis of a new cross-flow type hydraulic turbine for high head and low flow rate

2021

Cross-flow turbines have recently been proposed for energy recovery in aqueducts when the outlet pressure is greater than zero, owing to their constructive simplicity and good efficiency within a large range of flow rates and head drops. In the case of high head drop (higher than 150 m) and relatively small discharge (lower than 0.2 m3/s), the traditional design of these turbines leads to very small widths of the nozzle and the runner; as a consequence, friction losses grow dramatically and efficiency drops down to very low values. Standard Pelton turbines require zero outlet pressure and cannot be used as alternatives. A new counter-pressure hydraulic turbine for high head and low flow rat…

Coupled hydraulic and electronic regulation of cross-flow turbines in hydraulic plants

2017

The potential benefit of coupling hydraulic and electronic regulation to maximize the energy production of a cross-flow turbine in hydraulic plants is analyzed and computed with reference to a specific case. Design criteria of the cross-flow turbine inside hydraulic plants are first summarized, along with the use of hydraulic regulation in the case of constant water head and variable discharge. Optimal turbine impeller rotational speed is derived, and traditional as well as innovative systems for electrical regulation are presented. A case study is analyzed to evaluate the potential energy production according to the expected monthly mean flow distribution and two possible choices: CFT1 wit…

Coupled Hydraulic and Electronic Regulation for Banki Turbines

2016

Abstract The potential benefit of coupling hydraulic and electronic regulation to maximize the energy production of a Bank turbine in hydraulic plants is analyzed and computed with reference to a specific case. Design criteria of the Banki turbine inside hydraulic plants are first summarized, along with the use of hydraulic regulation in the case of constant water head and variable discharge at the end of aqueducts feeding water distribution systems. Optimal turbine impeller rotational speed is derived and traditional, as well as innovative systems for electricity production according to controlled rotational speed of the generator are presented. The study case at the purification plant nam…

A Banki–Michell turbine for in-line water supply systems

2017

The design of a novel Banki-Michell type turbine, to be located in existing water pipelines, is proposed. The turbine has a very efficient diffuser which allows the turbine to be compact and, most important, to have in-line flanges for minimal piping modifications at existing sites. This turbine combines a simple geometry with stable efficiency in a wide range of water discharges. The design procedure estimates the outer diameter of the impeller, its width and the geometry of the diffuser. A series of experimental tests has been carried out to measure the efficiency of the proposed turbine prototype. The turbine was tested in two different configurations, with and without rotational velocit…

Experimental Study of Cross-flow Micro-turbines for Aqueduct Energy Recovery

2014

An important component of the management cost of aqueducts is given by the energy costs. Part of these costs can be recovered by transforming some of the many existing energy dissipations in electric energy by means of economic turbines. In this study an experimental work has been carried out: 1) to test the performance of an economic Cross-Flow turbine which maintains high efficiency within a large range of water discharges, and 2) to validate a new approximated formula relating main inlet velocity to inlet pressure. It is proved that the proposed formula, according to some simplifying assumption, exactly links inlet velocity to inlet pressure according to any possible geometry of the Cros…

Sub specie æternitatis: the role of the ruin and the ancient in the process of architectural renewal between metamorphosis and resurgence

2022

Composing new works of architecture inspired by vestiges from antiquity or archaeology. The reflections and the case study which will be proposed, pertaining to a recent design experiment for the archaeological area and Antiquarium of Tyndaris, are dedicated to this theme. Over and above any charm exerted by such places, by landscapes in which the ruins appear identical in substance and which sometimes manifest themselves as “sub specie æternitatis”, there are reasons linked to the very profession of architect and to the gashes in the crucible of controversies around the role of history in its contentious relationship with architectural design. That apart, the aporias revealed by Michel Fou…