8 results on '"M. Roveta"'
Search Results
2. ITER and JT-60SA Conductor Production at ICAS
- Author
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Simonetta Turtu, U.B. Vetrella, F. Gabiccini, Antonio della Corte, A. Anemona, L. Reccia, A. Di Zenobio, F. Quagliata, A. Bragagni, S. Chiarelli, Massimo Seri, R. Freda, M. Roveta, Luigi Muzzi, G. Roveta, D. Valori, L. Affinito, Reccia, L., Freda, R., Chiarelli, S., Besi Vetrella, U., Anemona, A., Affinito, L., Turtu, S., Muzzi, L., Di Zenobio, A., and Della Corte, A.
- Subjects
Physics ,Tokamak ,Conductors for ITER ,superconductivity ,Toroidal field ,Nuclear engineering ,Solenoid ,Superconducting magnet ,uperconductivity ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,law.invention ,Conductor ,Nuclear magnetic resonance ,law ,Magnet ,nuclear fusion ,conductors for JT-60SA ,Poloidal field ,Electrical and Electronic Engineering ,Electrical conductor - Abstract
The European and the Korean contributions to the ITER Project in terms of cable-in-conduit conductors have been assigned to the Italian Consortium for Applied Superconductivity (ICAS). ICAS' charter members are: ENEA, with the role of general supervision and monitoring, CRIOTEC Impianti S.r.l., in charge of jacketing activities, and TRATOS Cavi S.p.A., with the duty of cable manufacturing. The ITER production consists of about 40 km of Nb3Sn toroidal field (TF) conductor and 22 km of NbTi poloidal field (PF) conductor, for coils 1 and 6. As part of the EU contribution to the construction of the JT-60SA Japanese Tokamak Reactor, ICAS is also in charge of producing about 28 km of NbTi TF conductor, required for the whole TF magnet system. Thanks to the high level and unique expertise available at ICAS, the consortium has been also assigned to manufacture the ITER Central Solenoid conductor samples to be tested in SULTAN for the final, positive, assessment of the updated design. In the present paper, the steps leading to the successful qualification of the main production processes will be described. What is more, the manufacturing of the first conductor unit lengths of the 'production phase,' i.e., the ones that will be wound to operate in the actual ITER TF and JT-60SA TF superconducting magnets, will be reported. The fabrication of the ITER CS conductor samples will be illustrated as well. © 2012 IEEE.
- Published
- 2013
- Full Text
- View/download PDF
3. ${\rm Nb}_{3}{\rm Sn}$ Cable-in-Conduit Conductor Fabrication for the Series-Connected Hybrid Magnets
- Author
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T.A. Painter, Gian Mario Polli, G. Roveta, Iain R. Dixon, M. Hoffmann, Mark D. Bird, L. Affinito, P. Smeibidl, Antonio della Corte, and M. Roveta
- Subjects
Fabrication ,Nuclear engineering ,Welding ,Superconducting magnet ,Fusion power ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,Conductor ,law.invention ,chemistry.chemical_compound ,Electrical conduit ,Nuclear magnetic resonance ,chemistry ,law ,Magnet ,Electrical and Electronic Engineering ,Niobium-tin - Abstract
The outsert coils of the Series-Connected Hybrid magnets for the National High Magnetic Field Laboratory and Helmholtz Zentrum Berlin each contain approximately 4000 kg of Nb3Sn/Cu cable-in-conduit conductor (CICC). There are three different sizes of CICC that grades the amount of super-conductor. Significant progress has been made in all aspects of the CICC fabrication. The strand, consisting of high RRP Nb3Sn, and conduit, composed of 316 LN with critical chemistry modifications, have been manufactured and quality control measurements made. The additional service to create the ten lengths of superconducting and three lengths of prototype, multi-stage twisted Cu cable is also complete. Jacketing of the cables has successfully been carried out at a new facility (subset of ICAS) for the insertion and compaction of fusion technology CICC using a weld and pull method. Fabrication processes and quality controls have been developed through a collaborative effort between the NHMFL, HZB, Criotec Impianti, and ENEA Superconductivity Division.
- Published
- 2012
- Full Text
- View/download PDF
4. A New European Production Line for CIC Conductors
- Author
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M. Roveta, Antonio della Corte, F. Quagliata, L. Reccia, Simonetta Turtu, D. Valori, L. Affinito, Massimo Seri, Luigi Muzzi, Gian Mario Polli, A. Bragagni, L. Morici, G. Roveta, A. Di Zenobio, S. Chiarelli, G. Scoccini, and U. Besi Vetrella
- Subjects
Production line ,Engineering ,Tokamak ,business.industry ,Emerging technologies ,Plasma confinement ,Condensed Matter Physics ,Manufacturing engineering ,Electronic, Optical and Magnetic Materials ,law.invention ,law ,Electrical and Electronic Engineering ,business ,Electrical conductor - Abstract
The on-going construction of the ITER and JT-60SA tokamak reactors requires the production of a large quantity of Cable-In-Conduit Conductors (CICCs) to be employed in the superconducting magnets for plasma confinement and control. A new company, named ICAS (Italian Consortium for Applied Superconductivity), was established thanks to the large expertise in this field that has been present in Italy for nearly three decades. ICAS is a consortium among ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development) and two Italian private companies: CRIOTEC Impianti, which owns an 850m long jacketing line for CICCs, and TRATOS Cavi, which has a large experience in cable manufacturing for various applications. ICAS' current activities are aimed at supplying to Fusion for Energy the European quote of ITER TF and PF conductors and the whole JT-60SA TF conductor quantity, as well as at supplying to the Korean Domestic Agency about 19 km of ITER TF conductor. This paper offers an overview of ICAS' technical capabilities and facilities, and outlines the first outcomes from the first productions.
- Published
- 2012
- Full Text
- View/download PDF
5. [Hygiene problems associated with characteristics of the sludge from purification plants in Liguria]
- Author
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S, Kanitz, R, Rizzetto, V, Patrone, Y, Franco, M C, La Rocca, M, Roveta, F, Parodi, and V, Pasero
- Subjects
Italy ,Sewage ,Environmental Microbiology ,Soil Pollutants ,Fertilizers ,Waste Disposal, Fluid ,Soil Microbiology ,Environmental Monitoring - Abstract
Sludge samples from five municipal sewage treatment plants in Liguria (Italy) were examined periodically during a whole year. Four of them are located in Genova and receive the sewage corresponding respectively to 20,000-53,000-125,000 and 285,000 equivalent inhabitants. The last one is in Chiavari and receives the sewage corresponding to 40,000 equivalent inhabitants. All plants included a preliminary screening treatment, primary sedimentation and a secondary activated sludge process. Sludge was thickened by centrifuge. The bacteriological and chemical characteristics of the sludge after centrifuging (detection and estimation of total and fecal coliforms, fecal streptococci and enumeration and isolation of Salmonella, pH, moisture, total and volatile residue, nitrogen, phosphorus, heavy metals) were measured in order to establish the possibility of land disposal. Dry solids contained on average 34 g/kg total nitrogen and 1,4 g/kg phosphorus. Among heavy metals copper and zinc reached high levels: 544 and 1587 mg/kg of dry solids. Other metals were present at lower concentrations (As 6, Cd 2, Cr 70, Hg 2, Ni 53, pb 416 mg/kg). Comparing these results with those of a research carried out contemporarily in another region (Emilia Romagna) it was observed that in Ligury there is a higher content of copper and bacteria (with an average of 69 Salmonella in 1 g of dry solids). The results showed that sludge produced in the five treatment plants in Ligury (Italy) was apt to be used as fertilizer in soil, but that care has to be taken for what concerns microbial contamination. For what regards the differences among the five sewage treatment plants under observation some heavy metals (arsenic and chromium) reached very high average levels (10-14 mg/kg of arsenic and 70-118 mg/kg of chromium) in the sludge of two of them, which treat the sewage from highly industrialized areas. On the contrary lead and cadmium were present at the same levels in all plants (416 mg/kg of lead and 2 mg/kg of cadmium) with the exception of one (Ge-Quinto) where cadmium was practically absent (0,2 mg/kg). The overall average concentrations of heavy metals resulted definitively lower than maximum concentration proposed by CEE (1986) and by some italian region as Lombardia. Some differences among plants for what regards microbiological parameters were noted only for total coliforms.
- Published
- 1989
6. Design of the helium gas transfer line for the Warm Regeneration System of the ITER fusion reactor.
- Author
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F. Dinh, S. Giors, S. Hughes, G. Kouzmenko, A. Mussinatto, L. Popova, G. Roveta, and M. Roveta
- Published
- 2019
- Full Text
- View/download PDF
7. Hepatitis a Vaccine as Opportunity of Primary Prevention for Food Handlers: A Narrative Review.
- Author
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Fallucca A, Restivo V, Sgariglia MC, Roveta M, and Trucchi C
- Abstract
The hepatitis A virus (HAV) is still a leading cause of viral hepatitis worldwide. After a long incubation period, the clinical manifestations range from asymptomatic infection to acute liver failure. The severity of the disease increases with age and pre-existing liver disease. The transmission is mainly via person-to-person contact or ingestion of contaminated food or water. Food contamination can occur at any step of the food chain, especially when infected people handle not-heated or otherwise-treated food. HAV is endemic in low-income countries because of poor sanitary and sociodemographic conditions. The populations of developed countries are highly susceptible, and large outbreaks occur when HAV is introduced from endemic countries due to globalization, travel, and movement of foodstuffs. HAV prevention includes hygiene practices, immunoglobulins, and vaccination. Safe and effective inactivated and live attenuated vaccines are available and provide long-term protection. The vaccine targets are children and subjects at increased risk of HAV exposure or serious clinical outcomes. This review discusses the critical role of food handlers in the spread of HAV and the opportunity for food industry employers to consider food handler immunization a tool to manage both food safety in compliance with HACCP principles and food operators' biologic risk.
- Published
- 2023
- Full Text
- View/download PDF
8. [Hygiene problems associated with characteristics of the sludge from purification plants in Liguria].
- Author
-
Kanitz S, Rizzetto R, Patrone V, Franco Y, La Rocca MC, Roveta M, Parodi F, and Pasero V
- Subjects
- Environmental Microbiology, Environmental Monitoring, Italy, Fertilizers adverse effects, Sewage, Soil Microbiology, Soil Pollutants, Waste Disposal, Fluid
- Abstract
Sludge samples from five municipal sewage treatment plants in Liguria (Italy) were examined periodically during a whole year. Four of them are located in Genova and receive the sewage corresponding respectively to 20,000-53,000-125,000 and 285,000 equivalent inhabitants. The last one is in Chiavari and receives the sewage corresponding to 40,000 equivalent inhabitants. All plants included a preliminary screening treatment, primary sedimentation and a secondary activated sludge process. Sludge was thickened by centrifuge. The bacteriological and chemical characteristics of the sludge after centrifuging (detection and estimation of total and fecal coliforms, fecal streptococci and enumeration and isolation of Salmonella, pH, moisture, total and volatile residue, nitrogen, phosphorus, heavy metals) were measured in order to establish the possibility of land disposal. Dry solids contained on average 34 g/kg total nitrogen and 1,4 g/kg phosphorus. Among heavy metals copper and zinc reached high levels: 544 and 1587 mg/kg of dry solids. Other metals were present at lower concentrations (As 6, Cd 2, Cr 70, Hg 2, Ni 53, pb 416 mg/kg). Comparing these results with those of a research carried out contemporarily in another region (Emilia Romagna) it was observed that in Ligury there is a higher content of copper and bacteria (with an average of 69 Salmonella in 1 g of dry solids). The results showed that sludge produced in the five treatment plants in Ligury (Italy) was apt to be used as fertilizer in soil, but that care has to be taken for what concerns microbial contamination. For what regards the differences among the five sewage treatment plants under observation some heavy metals (arsenic and chromium) reached very high average levels (10-14 mg/kg of arsenic and 70-118 mg/kg of chromium) in the sludge of two of them, which treat the sewage from highly industrialized areas. On the contrary lead and cadmium were present at the same levels in all plants (416 mg/kg of lead and 2 mg/kg of cadmium) with the exception of one (Ge-Quinto) where cadmium was practically absent (0,2 mg/kg). The overall average concentrations of heavy metals resulted definitively lower than maximum concentration proposed by CEE (1986) and by some italian region as Lombardia. Some differences among plants for what regards microbiological parameters were noted only for total coliforms.
- Published
- 1989
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