197,673 research outputs found
Percorsi a mobilita' dolce: il ruolo delle tecnologie dell'informazione
No full textIl ruolo delle ICT nella gestione e nella promozione di organizzazioni che gestiscono perorsi a mobilita' dolce (greenways)
EAEE-ESC Task Group 3 - Seismic risk and earthquake scenarios - Report of the activities in the frame of the ENSeRVES Project
No full textThe activities of the EAEE-ESC TG3 (Seismic risk and earthquake scenarios), convened by Mauro Dolce (EAEE) and Vladimir Scehnk (ESC), have been carried out within the frame of ENSeRVES (European Network on Seismic Risk, Vulnerability and Earthquake Scenarios), a network project financed by the European Commission within the INCO-Copernicus program (D.G. XII, 4th Framework).
ENSeRVES gathered teams of scientists of different disciplines (Seismologists, Geologists, Engineers, Architects, ...) involving 11 prominent Institutions working on Earthquake Engineering and Seismology from 10 EU and CCE countries (Italy, Greece, France, Bulgaria, Romania, Albania, Czech Republic, Slovak Republic, Hungaria). It started in 1997 and lasted until 2001. Other Institutions and scientists, not directly involved in ENSeRVES, also took part to many meetings, as EAEE TG3 members, reporting their experiences in the discussion. In this paper the research activities carried out, and the results achieved are shortly reported
DOLCE ergo SUMO: On Foundational and Domain Models in SWIntO (SmartWeb Integrated Ontology)
No full textOberle D, Ankolekar A, Hitzler P, et al. DOLCE ergo SUMO: On Foundational and Domain Models in SWIntO (SmartWeb Integrated Ontology). Journal of Web Semantics: Science, Services and Agents on the World Wide Web. 2007;5(3):156-174
Theoretical and experimental studies for the application of shape memory alloys in civil engineering
No full textShape Memory Alloys (SMAs) have great potential for the use in the field of civil engineering. The authors of this manuscript have been involved, from 1996, in several experimental and theoretical studies of the application of SMAs in civil engineering, for national and international research projects. This paper provides an overview of the main results achieved, consisting in the conceptual design, implementation and testing of three families of SMA-based devices, namely: (i) special braces for framed structures, (ii) seismic isolation devices for buildings and bridges and (iii) smart ties for arches and vaults.
The main advantage of using SMA-based devices in the seismic protection of structures comes from the double-flag shape of their hysteresis loops, which implies three favourable features, i.e.: self-centring capability, good energy dissipation capability and high stiffness at small displacements.
The main advantage of SMArt ties comes from the thermal behaviour of SMA superelastic wires, which is opposite to that of steel rod. This implies a strong reduction of the force changes caused by variations of air temperature
Alghe d’acqua dolce
No full textL'articolo riguarda lo stato dell'arte della ricerca sulle alghe d'acqua dolce effettuata in Italia a partire dalla metà dell'ottocento ad oggi. I lavori sono circa un migliaio e gli ambienti più studiati sono quelli lacustri. Per le alghe di acqua dolce in Italia non esiste ancora un censimento completo ad eccezione delle Desmidiaceae. Per quanto riguarda i laghi una banca dati inedita riporta 1900 specie di alghe con prevalenza di Diatomeae e Clorofite. Viene accennato il ruolo delle acque d'acqua dolce come bioindicatori della qualità delle acque e le metodologie per la conservazione delle speci
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