82,239,642 research outputs found
Dopo le crisi. Le ragioni di un dialogo
No full textSaggio introduttivo del volume Dopo le crisi. Dialoghi sul futuro dell'Europ
La tutela della salute, tra valorizzazione dell’autonomia regionale e istanze ri-accentratrici
No full textDue schede per l'ornitologia poetica duecentesca (Iacopo Mostacci, Cino da Pistoia)
No full textNuova interpretazione di immagini e metafore ornitologiche in componimenti di Iacopo Mostacci e Cino da Pistoia
Schemi di classificazione e comparazione giuridica: un regno immenso e anonimo
No full textThe article deals with the relationships between legal comparison and classifications, taxonomies and ty- pologies. Starting from the reflections developed by Husserl in his book The Crisis of European Sciences and Transcendental Philosophy, the author discusses the idea of scientific research, its connection with the life-world, and the consequences of Husserl’s approach for the methodolo- gies of social sciences. In this context, the article discusses the role of classifications within com- parative research by focusing on the methodological problems that arise from it
La primazia del creditore: causa e conseguenza della debolezza dell'Europa
No full textIl saggio analizza la particolare protezione di cui godono, all'interno del diritto europeo, i soggetti che dispongono di un diritto di credito. In particolare, si analizza tale primazia del creditore mettendo in luce: in cosa essa consista; perchè essa è da considerarsi problematica; per quale motivo essa è altresì legata alla struttura fondamentale dell'Unione economica e monetaria
Beam-Wall interaction in the LHC liner
No full textThe beam pipe foreseen for the LHC is rather unconventional. To shield the cold bore of the magnets from the synchrotron radiation emitted by protons at 7 TeV, a beam screen (the so called "liner") has been introduced practically along all the machine. The present design of the liner is a compromise among beam stability issues, vacuum requirements, heat load on the cold bore, electron cloud effects and mechanical constraints. Three main potential sources of beam energy loss in the actual LHC liner are addressed, namely the interaction with the pumping holes, the (sawtooth) surface corrugation and the effect of an azimuthally inhomogeneous metallic beam pipe modelling the high resistivity of the welding. The losses are estimated through a detailed electromagnetic analysis (by means of standard theories) seeking for analytical expressions of electromagnetic fields and/or coupling impedance. An analytical (or semi-analytical) approach is considered for each problem, to better understand the relevant parameters to be optimised. Whenever possible, the theoretical results are compared to numerical simulations and/or experimental data, sometimes found in literature and sometimes developed ad hoc. In particular, a prototype has been built and measured to check the theoretical predictions about the image currents distribution on an azimuthally inhomogeneous metallic beam pipe
Dopo le crisi. Dialoghi sul futuro dell'Europa
No full textIl volume indaga con approccio interdisciplinare e con un minimo di consapevolezza metodologica le iniziative adottate in sede europea in costanza di pandemia, le quali appaiono diverse ma non per questo distanti da quelle del passato recente, al fine di comprendere e di mostrare a un pubblico più vasto dei ristretti circoli accademici gli scenari ragionevolmente dischiusi dalle attuali contingenze, segnate dal riemergere di una crisi ormai endemica. Sullo sfondo, vi è l’imperativo di contribuire in modo critico e consapevole a quel dialogo partecipativo sul futuro dell’Europa, recentemente promosso dalle istituzioni comunitarie
Comb beam for particle-driven plasma-based accelerators
No full textComb beams are sub-picosecond, high-brightness electron bunch trains generated via the velocity bunching technique. Such bunch trains can be used to drive tunable and narrow band THz sources, FELs and plasma wake field accelerators. In this paper we present recent results at SPARC-LAB on the generation of comb beams for particle-driven plasma-based accelerators
Classificazioni e ricerca comparatistica: alla ricerca di un dialogo tra pubblico- e privato- comparatisti
No full textThe contribution introduces the monographic section on methodologies of legal comparison and classifications. It outlines the structure and the overall meaning of the work and identifies the fil rouge that binds the articles of the section. More specifically, it highlights the reasons that suggest the need for a reflection on taxonomies and specifies the role that such a reflection has in overcoming the distinction between comparative public and private la
Image currents in azimuthally inhomogeneous metallic beam pipes
No full textWe consider an ultrarelativistic particle traveling on axis in an infinitely long cylindrical metallic beam pipe with azimuthally varying conductivity. For a circular geometry, a semianalytical solution is obtained using the Green functions and applying approximate boundary conditions for conductors. The theory predicts an image current distribution on the pipe walls practically independent of the azimuth, at least in the frequency range relevant for future machines such as the LHC. Numerical electromagnetic simulations and bench measurements confirm the theoretical predictions. Implications for the beam-induced heating in the copper-coated, welded LHC beam screen are also addressed
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