Search results for "HQ"
showing 10 items of 276 documents
Costruzioni di ‘identità’. I cinquant’anni della comunità belicina
2019
Il territorio è un essere vivente di grande complessità: il risultato di processi sinergici di co-evoluzione tra gli insediamenti umani e l’ambiente. Rappresenta quindi il campo in cui i diversi attori possono sviluppare un senso di identità, di appartenenza e di riconoscimento con il proprio luogo: l’identità spaziale, che varia da luogo a luogo e nel tempo. Nel 1968 la Valle del Belice (Sicilia) è stata danneggiata da un violento terremoto che ha trasformato radicalmente la regione e le sue comunità. A cinquant’anni dall’evento, il presente scritto analizza questa parte del territorio secondo tre diverse narrazioni: - caratteristiche fisico-materiali; - una prospettiva locale come area di…
Actuators and sensors allocation for adjacent buildings vibration control
2012
This paper puts forward an actuators and sensors allocation approach to the design of the adjacent buildings vibration attenuation under seismic excitation. A full order model of an adjacent buildings system with the location information of actuators and sensors is considered and by retaining the modes which make the largest contributions to the model with the Modal Cost Analysis (MCA), a reduced order model is established so that the controller can be designed conveniently. In view of the fact that not all the states of the system can be measured by the sensors, a dynamic output feedback H ∞ controller is designed for the adjacent buildings system. By considering that the output powers of …
Geodetic and geological evidences of activetectonics in western Sicily (Italy): insights onthe seismogenic source of the 1968 Beliceearthquake sequen…
2013
The night between the January 14th and 15th 1968, a wide area of western Sicily (Italy) was shaken by a strong earthquake, the main shock of a seismic crisis that hit the region until the January 25th. The disastrous event, that is the strongest seismic event recorded in Western Sicily in historical times, caused about 370 deaths and the destruction of many villages facing the Belice river valley, which was the epicentral area for this unexpected natural disaster. The seismic sequence consisted of a main shock with M=5.9 and a series of pre-shock and aftershocks that were clustered along a NE-SW alignment. Focal planes solutions provided by many authors in the last decades show controversia…
Mujer y Verdad: Notas sobre la historicidad de la 'diferencia de los sexos'.
2000
En este artículo, la autora se propone analizar algunos textos de la historia de la filosofía en los que se relaciona 'mujer' y 'verdad' y 'mujer' y 'filosofía'. La enigmática afirmación de F. Nietzsche, en La Gaya Ciencia, 'La Verdad es una Mujer' le sirve como punto de partida para abordar. 1.- parte de 'la diferencia de los sexos' como un objeto no definido pero del que hay que indagar su historicidad. 2.-Ello servirá de base para interpretar algunos de los ensayos de M. Montaigne y de F. Schlegel como diferentes modelos histórico-filosóficos de la relación verdad-mujer. 3.- El análisis se hace en torno a la relación: 'prejuicios-verdad e igualdad sexual', en el caso de Montaigne y en to…
Reseña de Mi Guerra de España de Mika Etchebéhère.
2020
Resena de la segunda edicion (2019) que la editorial Camblache realzia de la celebre obra autobiografica de Mika Etchebehere. Se actualiza el texto anadiendo contenido sobre el contexto con los procesos historicos que marcaran la vida de la autora y que se relatan en el texto, permitiendo analizar en su complejidad los aportes de las reflexiones de Mika Etchebehere sobre papel de la mujer en los procesos revolucionarios de su epoca. Abstract Review of the second edition (2019) that the Camblache publishing house makes of the famous autobiographical work of Mika Etchebehere. The text is updated by adding content on the context with the historical processes that will mark the life of the aut…
L’USO DEI DISPOSITIVI DI RINFORZO LIGNEO NELL’ARCHITETTURA SICILIANA IN ETÀ MODERNA
2014
Il saggio studia l’uso dei dispositivi di rinforzo ligneo nelle architetture siciliane d’età moderna ponendo criticamente a confronto documenti di fabbrica, brani tratti dai trattati d’architettura, siciliani e non, e contributi offerti dalla letteratura storica non specialistica. Lo studio evidenzia la persistenza e le peculiarità d’uso di una tecnica che, molto diffusa in area mediterranea, in Sicilia si configura come una “invariante” del repertorio costruttivo tradizionale.
Traditional Architecture and seismic security. Earthquake in the Madonie inner mountain area of Sicily: damages and construction techniques
2017
Tra il 1818 e il 1819 una serie di centri siciliani concentrati nell'area montuosa delle Madonie, furono colpiti a più riprese da una sequenza di scosse sismiche che provocarono numerosi danni all’edificato storico, sia diffuso che di pregio. Il contributo intende indagare i danni e le conseguenti ricostruzioni, con particolare riferimento alle tipologie edilizie e alle tecniche costruttive adottate prima e dopo il sisma. L'azione di verifica e monitoraggio delle condizioni delle fabbriche e i conseguenti interventi di consolidamento e riparazione sono efficacemente documentati in testi a stampa e nei report coevi al sisma e –soprattutto- da una copiosa documentazione archivistica. Si ident…
Hybrid QoS Based Routing for IEEE 802.16j Mesh Infrastructure
2014
Acceptance rate: 29%; International audience; With the growth of wireless networks, Wireless Mesh Network (WMN) has appeared as an emerging key solution for broadband Internet access with a low-cost deployment. Moreover, providing QoS guarantees for real-time and streaming applications such as VoIP (Voice over IP) and VoD (Video on Demand) is a challenging issue in such environment. In this paper, we propose a hybrid wireless mesh architecture to provide mesh clients with Internet access while guaranteeing QoS. It is formed by an IEEE 802.16j based infrastructure and several IEEE 802.11s based client domains. A lustering algorithm is developed to enhance scalability issues within the mesh i…
HQMR: Hybrid QoS based Routing Protocol for Wireless Mesh Environment
2015
International audience; Wireless Mesh Networks (WMNs) have been attracting more and more interest from both academic and industrial environments for their seamless broadband connectivity to Internet networks. Besides, providing QoS guarantees for real-time and streaming applications such as Voice over IP (VoIP) and Video on Demand (VoD) is a challenging issue in such environment. Thus, we propose a novel QoS based routing protocol for wireless mesh infrastructure, called Hybrid QoS Mesh Routing (HQMR). Moreover, a clustering algorithm is developed to enhance scalability issues within the mesh infrastructure. HQMR is composed of two routing sub-protocols: a reactive routing protocol for intr…
A complex thrust sequence in western Himalaya: the active Medlicott Wadia Thrust.
2017
15 pages; International audience; The recent activity of the Medlicott-Wadia Thrust (MWT) is investigated by geomorphic and tectonic studies in the Riasi zone, south of the Pir Panjal range (India, Jammu-Kasmir state of western Himalaya). In the Riasi area, the MWT forms a splay of five faults that dip northward. The recent activity of the splay is quantified using a set of deformed Quaternary alluvial units. The central branch of the thrust splay moved Precambrian limestones above Quaternary sediments and is sealed by 36 ± 3 ka (youngest OSL age) deposits. The other branches offset the top of a 15 ± 1 ka (youngest OSL age) alluvial fan by 180 to 120 m; the two southernmost branches form 17…