186,643 research outputs found
SARNET2 Severe Accident Phenomenology Course - January 2011
No full textThe first SARNET2 “Severe Accident Phenomenology Short Course” was organized from 10 to 14 January 2011 by CEA and UNIPI and hosted by Pisa University, with the participation of about 100 students from 20 different countries. This was a 1-week course on phenomenology, focused on disseminating the knowledge gained on severe accidents in the last two decades to students, young engineers and researchers. The goal was also to refresh participants memories after 5 years and SARNET new outcomes, with a program covering severe accident phenomenology and progression in current watercooled Gen. II NPPs, but also the different design solutions in Gen. III ones. Lecturers were experts from 8 different countries, with large skills and knowledge on Gen. II and III plants and on the progression of a severe accident. The course was open to university students with a discount fee and contributed for 3 ECTS with a strong link among SARNET2 and ENEN
Italy: Building on a Long Insurance Heritage
No full textThis chapter provides a long-run analysis on the evolution of the Italian insurance market considering insurance industry dynamics as well. The fall of the Italian economy from its central position in the sixteenth century resulted in its relegation from the areas of strongest economic growth in Europe and is probably at the heart of the decline in importance of Italy’s financial intermediaries. This contrasted strongly with the innovative capacity of both the Italian insurance and credit markets during their period of primacy in the late Middle Ages and the early Renaissance. By contrast, from the mid-seventeenth century, innovative institutions and instruments were stimulated in countries with strong economic demand and growing financial needs, such as the Netherlands and, particularly following the Industrial Revolution, Great Britain. The relative fall in Italian per capita income— stagnant in the seventeenth century and in slight decline in the eighteenth century — was accompanied by modest growth in trade, which limited the spread of insurance contracts. In the early decades of the nineteenth century, insurance companies began to be established in various cities that triggered a slow and gradual convergence of the Italian insurance market with the more dynamic French, German, and Austrian markets. Nevertheless, over the long term, the Italian insurance market has displayed three distinctive elements: (1) lower per capita income than countries that were its major commercial partners and a concomitant lower take-up of insurance instruments, off set by a persistently high rate of savings; (2) a legislative system that was not conducive to insurance activity, which in some periods saw the adoption of stringent regulations restricting foreign companies; and (3) the considerable direct state intervention since the eve of the First World War, intended to boost demand for insurance and social security cover. The insurance market was thus aff ected by these constraints on growth and by the policies adopted to off set them, which played a part in determining, for example, the low level of growth in supplementary social security instruments in the last fi ft een years, despite a decrease in state provision of pension cover
L’attività multinazionale delle banche miste italiane: organizzazione, carriere, contabilità
No full textLa gallina dalle uova di marmo: la Bastogi e le finanziarie italiane negli anni Sessanta
No full textSulla scorta di una ricca e inedita documentazione d'archivio si ricostruiscono le vicende e il ruolo della Bastogi negli anni sessanta sino ai tentativi di scalata esperiti da Sindona nei primi anni settanta. Il tema centrale è costituito dalla governance societaria prevalente nelle grandi imprese italiane, dalle pratiche collussive ai patti parasociali, in relazione agli assetti proprietari prevalenti in una fase di perdita di efficienza e funzionalità del mercato azionario. La tesi è che l'assenza di un mercato per il controllo delle imprese e la ridotta contendibilità delle grandi imprese italiane ne ridussero l'efficienza dinamica. Il caso analizzato è una conferma di tale ipotesi
Presentation of the SEAKNOT Project on SEvere Accident KNOwledge Transfer to young generations
No full textThe SEAKNOT project deals with the SA domain as a whole: in‐ and ex‐vessel debris coolability, containment performance, source term and, of course, SA modelling. It fits within the SNETP‐NUGENIA Technical Area 2 (TA2) framework, with a strong cross-cutting among the 6 TA2 Sub Areas. SEAKNOT builds upon the existing knowledge on SA in LWRs but also intends to exploit the results of mostly European framework (from EURATOM SARNET projects to Horizon 2020 ones or, nowadays, as SNETP/NUGENIA TA2 in‐kind projects and activities) and to prepare the future common SA EU experimental activities at horizon 2022‐2030. Through specific actions, associated with the mobility of young scientists and engineers to other European labs and led by experienced researchers, some necessary key elements will be added to the SA assessment through the use of the most advanced analytical tools and/or their contribution in “ad‐hoc” experimental setups
Critical analysis of seismic codes’ provisions on second order effects
No full textThis paper is aimed to discuss the conceptual troubles currently appearing in the codified rules to account for second-order effects in the seismic design of structures. First of all, starting from SDOF systems, the distinction between second-order effects in the elastic range and second-order effects in the plastic range is clarified. Moreover, the attention is focused on the conceptual difference occurring between a parameter measuring the structural proneness to second-order effects and a demand parameter measuring the safety level against the phenomenon of dynamic instability. Successively, the critical issues concerning the behaviour occurring in real MDOF structures when compared to SDOF systems is pointed out underlining the uncoupling between secondorder effects in the elastic range and second-order effects in the plastic range, due to the influence of the collapse mechanism typology. The codified rules to account for second-order effects in Eurocode 8 are analysed showing why they are conceptually wrong giving rise to a lot of unjustified problems in the seismic design of steel MRFs. Recent proposals to improve Eurocode 8 are also analysed. Finally, it is shown how relevant studies already existing in the technical literature can be exploited in order to set up code provisions having a sound theoretical background. Finally, a new proposal, accounting for the influence of the collapse mechanism, for codification of P - Delta effects in seismic design is presented
P-Delta effect in seismic resistant steel structures. (**)
No full textStructural Stability Research Council, Annual Technical Session, Milwaukee, 5-6 April 199
P-Delta effect in seismic resistant steel structures. (**)
No full textStructural Stability Research Council, Annual Technical Session, Milwaukee, 5-6 April 199
A new method to design steel frames failing in global mode including P-effects. (**)
No full textSTESSA '94 - Behaviour of Steel Structures in Seismic Areas, Timisoara, 26 June - 1 July 199
- …
