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SEISMIC ISOLATION OF LEAD-COOLED REACTORS: THE EUROPEAN PROJECT SILER
Forni, Massimo,Poggianti, Alessandro,Scipinotti, Riccardo,Dusi, Alberto,Manzoni, Elena Korean Nuclear Society 2014 Nuclear Engineering and Technology Vol.46 No.5
SILER (Seismic-Initiated event risk mitigation in LEad-cooled Reactors) is a Collaborative Project, partially funded by the European Commission in the $7^{th}$ Framework Programme, aimed at studying the risk associated to seismic-initiated events in Generation IV Heavy Liquid Metal reactors, and developing adequate protection measures. The project started in October 2011, and will run for a duration of three years. The attention of SILER is focused on the evaluation of the effects of earthquakes, with particular regards to beyond-design seismic events, and to the identification of mitigation strategies, acting both on structures and components design. Special efforts are devoted to the development of seismic isolation devices and related interface components. Two reference designs, at the state of development available at the beginning of the project and coming from the $6^{th}$ Framework Programme, have been considered: ELSY (European Lead Fast Reactor) for the Lead Fast Reactors (LFR), and MYRRHA (Multi-purpose hYbrid Research Reactor for High-tech Applications) for the Accelerator-Driven Systems (ADS). This paper describes the main activities and results obtained so far, paying particular attention to the development of seismic isolators, and the interface components which must be installed between the isolated reactor building and the non-isolated parts of the plant, such as the pipe expansion joints and the joint-cover of the seismic gap.
Seismic Isolation of Lead-Cooled Reactors: the European Project SILER
MASSIMO FORNI,ALESSANDRO POGGIANTI,RICCARDO SCIPINOTTI,ALBERTO DUSI,ELENA MANZONI 한국원자력학회 2014 Nuclear Engineering and Technology Vol.46 No.5
SILER (Seismic-Initiated event risk mitigation in LEad-cooled Reactors) is a Collaborative Project, partially fundedby the European Commission in the 7th Framework Programme, aimed at studying the risk associated to seismic-initiatedevents in Generation IV Heavy Liquid Metal reactors, and developing adequate protection measures. The project started inOctober 2011, and will run for a duration of three years. The attention of SILER is focused on the evaluation of the effectsof earthquakes, with particular regards to beyond-design seismic events, and to the identification of mitigation strategies,acting both on structures and components design. Special efforts are devoted to the development of seismic isolationdevices and related interface components. Two reference designs, at the state of development available at the beginning of the project and coming from the 6thFramework Programme, have been considered: ELSY (European Lead Fast Reactor) for the Lead Fast Reactors (LFR),and MYRRHA (Multi-purpose hYbrid Research Reactor for High-tech Applications) for the Accelerator-Driven Systems(ADS). This paper describes the main activities and results obtained so far, paying particular attention to the development ofseismic isolators, and the interface components which must be installed between the isolated reactor building and the nonisolatedparts of the plant, such as the pipe expansion joints and the joint-cover of the seismic gap.
Yamashita, N.,Gasnault, O.,Forni, O.,d'Uston, C.,Reedy, R.C.,Karouji, Y.,Kobayashi, S.,Hareyama, M.,Nagaoka, H.,Hasebe, N.,Kim, K.J. Elsevier 2012 Earth and planetary science letters Vol.353 No.-
<P><B>Abstract</B></P> <P>The first unambiguous global distribution of Ca on the Moon has been revealed by the Kaguya Gamma-Ray Spectrometer. The observation of the 3737keV gamma rays from <SUP>40</SUP>Ca with a high energy resolution Ge detector, corrected for fast neutrons, improved greatly our confidence in these remote sensing data. While the derived Ca abundance generally confirms the mare-highland dichotomy, we found that the eastern mare regions such as Crisium, Nectaris, and Fecunditatis exhibit unexpected high Ca abundances. This may be explained by regional concentrations of high-Ca clinopyroxene. Our Ca map also shows that the lowest CaO abundance found in the returned samples (∼8wt%) may actually be common in Oceanus Procellarum, suggesting the possible sampling bias of Apollo and Luna missions. These observational results on Ca serve as a complementary criterion for better characterization of mare regions on the Moon.</P> <P><B>Highlights:</B></P> <P>► Global distribution of Ca on the Moon is derived from Kaguya GRS data. ► Observation by high precision Ge detector greatly improved confidence in measurement. ► Ca was found to be more abundant in the east mare region than in the west. ► Selective concentration of high-Ca pyroxene in the eastern mare region is implied. ► Ca provides a complementary criterion to characterize the lunar thermal history.</P>
Aaron Paolo Maderazo,Noel Kristi Alfanta,Ricky Jonathan Fornis,Alfred Ray Jayag,Arvin Penetrante,Randall Raboy 대한전자공학회 2010 ICEIC:International Conference on Electronics, Inf Vol.1 No.1
The Talamban Campus of the University of San Carlos is a large site and locating specific places around the school campus becomes a difficult task. To solve this problem studies have been made regarding the development of a computerized mapping system for the Talamban Campus but they were not used by the general public. This study, entitled “Touchscreen Campus Mapper”(TSCM), aims to make a system that is faster and more usable than the previous “Nicole” Path Locator System by using c/c++ and redesigning the back-end system using the Simple DirectMedia Layer for graphics manipulation in the User Client Application, using the Qt Framework in designing the system, using the User Centered System Design (UCSD) process model in designing the user interfaces. The User Client Application is implemented in a touchscreen for easier use. Following the iterative process of UCSD feedbacks were obtained that improved the usability of the system. The TSCM system was able to perform faster than “Nicole” Path Locator. The TSCM received a high mark in usability during its User Acceptance Test. Like “Nicole” the TSCM also allows new maps to be added continually widening its scope. Based on the results the Touchscreen Campus Mapper system was able to improve in terms of both performance and usability compared to the “Nicole” Path Locator system.