1,722,342 research outputs found
Probelms in Fitting together Total Delayed Neutron Yield Data and In-Pile Integral Measurement Results
No full textSensitivity Study of the Positive Scram Effect Relevant to the Chernobyl Accident Simulation
No full textD'Angelo A., Moro, i vescovi e l'apertura a sinistra, Studium, Roma 2005
Full text linkRecensione al volume: D'Angelo A., Moro, i vescovi e l'apertura a sinistra, Studium, Roma 200
KY electroproduction at CLAS12
No full textAn experimental program has been approved at the Thomas Jefferson National Accelerator Facility to measure the p(e, eK(+))Y reactions using the CLAS12 setup in Hall B. Data have been obtained using a 7.5 GeV electron beam, impinging upon a liquid-hydrogen target in the CLAS12 centre. The goal is to measure the Q(2) differential KY electroproduction cross section thus probing the Q(2) evolution of the N* resonance electrocouplings in the Q(2) range from 0.05GeV(2) to 3GeV(2): this will provide a crucial tool to investigate the possible hybrid nature of the N* resonances. Preliminary results from CLAS12 data are reported
Migrant organisations: embodied community capital?
No full textMigrant organisations have been conceptualised as a reflection of ethnic-social networks and almost an embodiment of community level social capital. However, the development and networking practices of these organisations are driven by a much broader set of factors, including divisions within a community and the local opportunity structure. In this chapter, D’Angelo focuses on the case of Kurdish community organisations in London and discusses the effectiveness of mixed-methods Social Networks Analysis (SNA) to explore these aspects. His empirical research confirms the important role of community organisations in fostering social capital at individual and community level, but also reveals the co-existence of conflicts and cooperation within these networks and the potential tensions between the interests of individual organisations and those of the broader community
La Santa Sede e gli aiuti alla popolazione greca
No full textIl contributo analizza le modalità con le quali la Santa Sede si attivò per soccorrere la popolazione affamata durante l'occupazione nazifascista della GreciaThe paper analyzes how the Holy See started to help the hungry population during the Nazi-Fascist occupation of Greec
Subcriticality-Level Evaluation in Accelerator-Driven Systems by Harmonic Modulation of the External Source
No full textAccelerator Driven Systems (ADS) for nuclear waste transmutation will periodically need absolutely calibrated measurements of the subcriticality level. These measurements will allow both the check of the sub-criticality margin during the ADS operation life and the related comparison between experimental and foreseen fuel cycle reactivity effect. Until now, the possibility of absolute (source-jerk type) reactivity measurements, to be made just after external source break-off, has been mentioned in ADS proposals. Complementary reactivity measurement techniques are investigated to analyze the ADS response to harmonic modulation of the external neutron source. The point kinetic approximation is used to test the method by numerical simulations. To take into account spatial effects, a multi-mode case is finally investigated. Results show that, in the case of ADS subcritical systems, the theory of an absolute reactimeter may be formulated. The need for explicit transport calculations, before any possible experimental validation, is also mentioned
How to improve the useful intensity of tagged beams
No full textWe discuss a way to increase the useful intensity of tagged gamma ray beams and simultaneously reduce the accidental rate between uncorrelated electrons in the tagging system and the photoreaction channel under study
The Effective-Beta Sensitivity to the Incident Neutron Energy Dependence of the Absolute-Delayed-Neutron-Yields
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