Search results for "LIGHT"
showing 10 items of 3575 documents
Experimental investigation on mansory panels manufactured with pumice lightweight concrete
2010
The possibility of using pumice aggregates for concrete in structural applications is discussed. In particular, the mix design of lightweight concrete for the manufacturing masonry units having proper strength, is discussed. Moreover, the design of the unit shape according to the technical code requirements and making it possible to arrange reinforcing steel bars is described. Reinforced bearing masonry walls, made with the concrete units in question, were manufactured and tests on the panels and on the designed units were carried out. For comparison, tests on concrete units and structural elements were carried out after the substitution of pumice aggregates with ordinary lightweight aggreg…
Luminarie d'autore
2009
L'articolo analizza l'esperienza di Kals'art a Palermo; una manifestazione che si è proposta come innovativo progetto di cultura, comunicazione e marketing territoriale. In particolare le "luminarie d'autore" hanno introdotto nella fruizione del centro storico nuove epressioni visive con un esplicito riferimento al design. Il testo è stato elaborato all'interno della ricerca cofinanziata MIUR 2005/2006 dal titolo 'd.Cult. Il design per la valorizzazione dei beni culturali' SDI/Sistema Design Italia.
Sine cura. Verso il ri-ciclo dell'architettura del secondo Novecento
2019
Gli argomenti discussi nel saggio interrogano il destino che il Codice dei Beni Culturali (2004- 2011) determina per le opere del secondo Novecento. Nella costruzione del futuro di questi manufatti, che per funzione, tecnologia e cicli d’uso sono spesso segnati dall’obsolescenza e dall’abbandono, le ambiguità e le incongruenze delle attuali procedure legislative sollecitano profondamente il ruolo culturale delle esperienze di ricerca che usano metodologie meta progettuali. Il confronto fra alcuni casi italiani ed altri europei rimarca il ruolo del progetto nella costruzione di una prospettiva di tutela trasformativa per il costruito del secondo Novecento. Nel quadro di azione marcato dall’o…
THE LIGHT IN MUSEUM EXHIBITIONS AS AN EFFECTIVE TOOL FOR COMMUNICATING THE MEANING OF ANCIENT REMAINS
2011
In this paper, based on research made by the Authors in the Mediterranean area, is highlighted how the use of light in museums can effectively contribute to a better knowledge of the past, giving citizens the opportunity to rediscover their identity and tourists to understand local history and archaeology. The research investigates about the aspects of lighting for archaeological sites or part of them. The charm of an archaeological site or a monument comes from the perception of its whole environmental context, both for functional lighting and artistic valorization. The emphasis is on what should be the most effective lighting system for the monumental sites, one respecting the ruins and t…
THE LIGHT IN MUSEUM EXHIBITIONS AS AN EFFECTIVE TOOL FOR COMMUNICATING THE MEANING OF ANCIENT REMAINS
2011
In this paper, based on research made by the Author in the Mediterranean area, is highlighted how the use of light in museums can effectively contribute to a better knowledge of the past, giving citizens the opportunity to rediscover their identity and tourists to understand local history and archaeology. The research investigates about the aspects of lighting for archaeological sites or part of them. The charm of an archaeological site or a monument comes from the perception of its whole environmental context, both for functional lighting and artistic valorization. The emphasis is on what should be the most effective lighting system for the monumental sites, one respecting the ruins and th…
Flight Control Research Laboratory Unmanned Aerial System flying in turbulent air: an algorithm for parameter identification from flight data
2013
This work addresses the identification of the dynamics of the research aircraft FCRL (Flight Control Research Laboratory) used for the Italian National Research Project PRIN2008 accounting for atmospheric turbulence. The subject vehicle is an unpressurized 2 seats, 427 kg maximum take of weight aircraft. It features a non retractable, tailwheel, landing gear and a powerplant made up of reciprocating engine capable of developing 60 HP, with a 60 inches diameter, two bladed, fixed pitch., tractor propeller. The aircraft stall speed is 41.6 kts, therefore it is capable of speeds up to about 115 kts (Sea level) and it will be cleared for altitudes up to 10.000 ft. The studied aircraft is equipp…
Trajectory tracking for a Non-Conventional UAV
2008
The aim of the present paper is the design of a flight control system for a Tandem – Canard UAV, useful in the whole flight envelope, both Out of Ground Effect (OGE) and In Ground Effect (IGE) conditions. Because of the particular arrangement of the studied aircraft, a general mathematical model has been built in order to obtain non-linear analytical equations for longitudinal aerodynamic coefficients both in OGE and in IGE flight. So the dynamic behaviour of the UAV may be studied during every flight phases i.e. in the whole range of altitude. To consider the strong variation of aerodynamic parameters due to the ground effect presence, a robust control technique (LQG/LTR) has been used to …
Dynamic Lighting Strategies with Load Modulation Purposes to Reduce Peak Electrical Demand
2018
This paper proposes a study about the feasibility to modulate the indoor artificial lighting, taking into account both achievable energy savings and comfort conditions, in order to reduce lighting electric loads. In particular, it focuses on the possibility, on one hand, to decrease the luminous flux and, on the other hand, to change the Correlated Colour Temperature (CCT), in order to decrease the absorbed power. Moreover, the impact of daylight-linked control systems was considered. Finally, the possibility to combine the different technical solutions was analysed. The paper proposes the definition of daily scheduling referred to lighting energy management, in order to modulate the maximu…
Assessment of indoor illuminance and study on best photosensors' position for design and commissioning of Daylight Linked Control Systems. A new meth…
2018
Abstract Artificial lighting systems have to ensure appropriate illuminance with high energy efficiency according to best design practice and technical standards. These aims can be tackled, by incorporating a Daylight linked control system. However, the system behaviour is strongly influenced by several factors and, in particular, by the sensors' position. Indeed, very often the illuminance on work-plane is not fully correlated with illuminance measured by the photo-sensor used to control the luminaires. This fact leads to wrong information for the Daylight linked control systems affecting its efficacy. The artificial intelligence of Neural Networks can be exploited to provide a method for …
Assessing the lighting systems flexibility for reducing and managing the power peaks in smart grids
2020
Abstract The application of “shiftable” or “modulable” load (i.e. washing machine, dishwasher, etc.) in a Smart Grid, can provide energy saving or modify the power flows in the grid, allowing a reduction of the electrical power peak. This paper explores the possibility to modulate the indoor artificial lighting to support this reduction. The study examines the impact of two different measures of power shaving. On the one hand, the change of Correlated Colour Temperature of the light source, and, on the other hand, the dimming of its luminous flux. The possibility to merge the above-mentioned technical solutions is also analyzed. Based on these strategies, several daily schedules of lighting…