0000000000607686
AUTHOR
S. Passarello
showing 2 related works from this author
Monetary Valuations of Monumental Trees and Other Natural Resources between Demand for Conservation and Recent Requirements for Outdoor Activities: S…
2011
The focus of this paper is on the valuation of the benefits that local communities living in protected areas may perceive with regard to some specific natural resources, and in particular to Monumental Trees. The current economic crisis which involves countries at world level, leads to think that in the near future the financial resources to be destined for interventions in favour of these environmental goods will be more and more scarce, with the result that most monumental trees will not be protected and this natural heritage will be totally degraded and therefore lost to local communities. Three Sicilian case studies were investigated, two concerning the Madonie Regional Natural Park, an…
A status report of the multipurpose superconducting electron cyclotron resonance ion source
2007
Intense heavy ion beam production with electron cyclotron resonance (ECR) ion sources is a common requirement for many of the accelerators under construction in Europe and elsewhere. An average increase of about one order of magnitude per decade in the performance of ECR ion sources was obtained up to now since the time of pioneering experiment of R. Geller at CEA, Grenoble, and this trend is not deemed to get the saturation at least in the next decade, according to the increased availability of powerful magnets and microwave generators. Electron density above 1013 cm(-3) and very high current of multiply charged ions are expected with the use of 28 GHz microwave heating and of an adequate …