760 research outputs found
18 May 2010 - Costa Rica Minister of Science and Technology C. Fonseca discussing with Coordinator for External Relations F. Pauss and Adviser for Latin America J. Salicio Diez and visiting the ATLAS visitor centre at LHC Point 1 with Former Collaboration Spokesperson P. Jenni.
CERN-HI-1005079 16: from left to right: UNOSAT Member O. Van Damme, Deputy Permanent Representative C. Guillermet, Ambassador and Permenant Representative of Costa Rica to the UN M. B. Dengo, Minister of Science and Technology C. Fonseca, Coordinator for External Relations F. Pauss, ATLAS Former Collaboration Spokesperson P. Jenni and Adviser for Latin America J. Salicio Diez
18 February 2015 - Her Excellency Ms Elayne Whyte Gómez Ambassador Permanent Representative of the Republic of Costa Rica to the United Nations Office and other international organisations in Geneva
signing the Guest book with Head of International Relations R. Voss. J. Salicio present throughout
6th September 2011 - Argentine Minister of Science, Technology and Innovation J. L. Barañao signing the guest book with CERN Director-General R. Heuer.
In the ATLAS Visitors Centre with Collaboration Spokesperson F. Gianotti and National Contact Physicist M. T. Dova. ATLAS Collaboration M. Mikenberg present. CERN-HI-1109229 24: In the CERN Control centre, from left to right: First Secretary at the Permanent Mission R. Bardoneschi, National Contact Physicist M.T. Dova, CERN Adviser for Latin America J. Salicio Diez, Minister Barañao and Beams Operation Group M. Benedikt
Friday 29 August 2014 - Mrs G. Kopper
Minister of Science, Technology and Telecommunications, Republic of Costa Rica G. Kopper signing the Guest Book with Director-General R. Heuer; throughout accompanied by Deputy Head of International Relations E. Tsesmelis and International Relations Adviser for Latin America J. Salicio
24 October 2014 - President of the Republic of Ecuador R. Correa Delgado signing the guest book with Vice President L. Moreno and Director for Research and Scientific Computing S. Bertolucci.
visiting the ATLAS experimental cavern with Collaboration PSokesperson D. Charlton and ATLAS User F. Monticelli; throughout accompanied by Adviser for Ecuador J. Salicio Diez and Director for Research and Scientific Computing S. Bertolucci
Monolayered versus multilayered electroless NiP coatings: Impact of the plating approach on the microstructure, mechanical and corrosion properties of the coatings
Electroless nickel-phosphorous (NiP) coatings were produced on low carbon steel substrates for a total plating time of 3 h. Different preparation modalities were pursued. Multilayered coatings were produced by stacking three layers of the same composition by successive electroless plating with rinsing steps in between. On the other hand, coatings termed ‘monolayered’ for the sake of comparison were deposited by one step electroless process, with and without undergoing bath replenishment of the electrolyte during plating. All the samples were subjected to thermal annealing at 400 °C for 1 h under argon atmosphere.
The results show that the multilayer approach prevents crack propagation in the as-deposited coatings because the interfaces between layers block the advance of defects. Bath replenishment during monolayered coatings production creates pseudo-interfaces similar to those of the multilayered case but they are ineffective in terms of corrosion protection. Un-replenishment of the electrolyte promotes a change in the coating's microstructure from lamellar to columnar which severely worsens their performance. Upon annealing, the presence of interfaces, along with the recrystallization of the metallic matrix, promotes an upgrading of the corrosion performance of the multi-layered coatings. The corrosion products spread laterally at the interface where they stockpile. At a certain point, the accumulation of these by-products provokes the exfoliation of the outermost layer exposing the layer underneath to the corrosive media, thereby delaying the advancement of the corrosion attack. The results of this study highlight the importance of the plating approach selection, as well as the need for proper electrolyte maintenance during the production of high-performance electroless coatings
10th February 2011-Ambassador Permanent Representative of the Republic of Ecuador to the United Nations H.E. Mr Mauricio Montalvo visiting CMS cavern with Head of International Relations F. Pauss
Photo 1,9-50:the delegation visiting the CMS cavern Photo 2-8:visiting CMS Control room Photo 51:V. Aguilar,First Secretary-G. Tonelli,CMS Collaboration Spokesperson-M. Montalvo-L. Sulak,CMS Collaboration-M. del Carmen Vivar,Third Secretary-N. Mora,Personal Assistant of Ambassador-B. Jones,Information Technology Department, EU Projects-L. Vayas,Counsellor-F. Pauss-J. Carlos Sánchez,First Secretary-J. Salicio,Adviser for Ecuador Photo 52-59:M.Montalvo signing the Guest Book with F. Paus
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