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Un sistema RFID in banda UHF per l'autoprestito in Biblioteca
No full textDepartment of Physics and CASPUR have been starting, in the past 2 years, a collaborationin order to develop a new RFID (Radio Frequency IDentification) system for automaticlibrary loan procedures. These systems (generally known as self-checkequipments) uses radio signals in the UHF frequency range to interact with antennas(passive tags) used to identify books. Users identification is made through special cardswith an embedded tag. The entire loan process is completely managed by users throughprograms which run on a PC (terminal) directly attached to the reader. In our project weused an approach different from current commercial solutions, that works with RFIDreader in the range of HF. We think in fact, that this new “technology” could be verypromising in the future for the enhancements it could bring vs the “old” one (e.g. formassive inventory of library items in a “single shot”, not permitted then using HF RFIDtechnology). In this report we not only demonstrate that UHF RFID readers can be usedinside libraries as effectively as HF RFID readers (despite the latter is a more mature andstable technology), but also illustrate a solution that makes use of UHF RFID componentswhich are relative simple to maintain and to upgrade, open for systems integration,web manageable and with an Ethernet port for direct local network connection. Usersinteractions with library loan system is performed through a simple Web interface on anetwork attached terminal. A software library fully compatible with SIP2, the protocolused by library management systems for automatic loan procedures is also available forInternet community. Currently a prototype of our solution is going to be installed in twolibraries of Università “La Sapienza” of Rome for testing procedures in real environments
Le attività della sezione di Roma I dell'INGV all'interno della collaborazione pluriennale con CASPUR: stato dell'arte e prospettive future
No full textThe long term cooperation between Istituto Nazionale di Geofisica e Vulcanologia (INGV)and CASPUR is summarized. From the beginning, characterized by a limited number ofresearchers involved in joint activities, to nowadays, when an ever increasing amountof computing time is requested and significant human resources dedicated to differentfields of research within the Institute ask for specialized support from CASPUR. In theend, the article will sketch out a reasonable forecast of the cooperation, emphasizingthe need for common goals, shared international research (EU projects) and High PerformanceComputing oriented training of researchers
CILEArning, forza 10. Un decennio di e learning
No full textIn the last ten years CILEA’s AFD team has acquired a large and fruitful expertise in the e learning field, thank to a wide amount of innovative projects designed and realized. This article shows some of the most interesting e learning services made available by CILEA to the academic world, together with some past, current and for¬ward projects.Nell'arco di quasi dieci anni di attività, il gruppo di Assistenza alla Formazione a Distanza del CILEA ha acquisito una significativa esperienza realizzando e supportando una molteplicità di progetti di e-learning, partecipando ad attività di ricerca, potenziando il gruppo di lavoro e le sue competenze. L’articolo illustra alcuni dei servizi offerti al mondo accademico, le attività passate, presenti e di prospettiva del gruppo
DSpace Hibernate-Prototype
No full textThis article shows the reengineering of the persistence tier of the open source software DSpace, to introduce a lower coupling in its software layers. The prototype was made using design patterns and standards from J2EE world: Domain Store, Session Façade, Application Service, JPA were also introduced for a technological upgrade of the platform. The research and development activity aimed at this goal was accomplished in a stage offered by CILEA to achieve a degree in Computer Science Engineering, an opportunity that CILEA offers on several innovative ICT themes, with the support of its experts.In questo articolo viene illustrata la reingegnerizzazione dello strato di persistenza del software open source DSpace, allo scopo di introdurre un maggiore disaccoppiamento dei layer software. Il prototipo è stato realizzato sfruttando design patterns e standard propri del mondo J2EE: Domain Store, Session Façade, Application Service, JPA e si propone quindi anche come un aggiornamento tecnologico della piattaforma. L'attività di ricerca e sviluppo finalizzata a questo obiettivo è stata condotta nell'ambito di uno stage offerto dal CILEA per il conseguimento della laurea magistrale in Ingegneria Informatica, opportunità che CILEA offre per diverse tematiche ICT all'avanguardia e sotto la supervisione dei propri esperti
Un microscopio computazionale per lo studio di materiali innovativi per il fotovoltaico del futuro
No full textThe importance of using photovoltaics (PVs) to obtain clean and reliable energy hasbeen widely recognized. The scientific research on new PV materials is crucial to identifynew approaches to the concept of solar energy conversion and to increase the photonversionefficiency. Among the different approaches for PV, the quantum dot (QD) solarcell is one of the most promising. A single layer QD consists of a distribution ofnanocrystals embedded into an amorphous dielectric matrix. It is in principle possibleto affect the optoelectronic properties of QD layers by controlling the morphology ofthe nanograins. The complex atomic scale structure of such materials makes it quitedifficult to predict theoretically their optoelectronic properties. The theoretical challengeis two-fold; on the one hand, it is necessary to generate large scale atomistic models;on the other hand, the corresponding electronic properties must be computed over alarge number of atoms. While the first issue can be coped with large-scale moleculardynamics (MD) simulations, the second issue is a major computational bottleneck andit requires a class of advanced algorithms for the electronic structure calculations inwhich the computational workload scales linearly with the number of atoms. Within acollaboration among CASPUR and the SLACS (Sardinian Laboratory for Computationalmaterials science) we have implemented a new numerical method to investigate theoptoelectronic properties of silicon based QD layers. By using such a theoretical frameworkit is possible to assist the design of new efficient materials for PV
Il Conferencing Service Center del CASPUR: un integratore di servizi per la comunicazione avanzata
No full textIn the past years, several relevant projects in education and communication environmenthave contributed to develop and deploy modern videoconference infrastructures.In this framework CASPUR is playing a significant role, promoting and diffusing videoconferencetechnologies among its scientific partners and public administration. ConferencingService Center (CSC) is an innovative solution for integrating communicationand collaboration services, which promotes audio media as the main communicationchannel. A CSC user gets benefits from audio and data communications using a virtualroom for his meetings, eliminating or lowering barriers of distance and cost of travel.In this way, CSC helps public and private organizations to improve efficiency of internalcommunication and to reduce costs.The CSC web portal service is accessible at http://csc.caspur.it, seven days a weekand 24 hours a day; through this portal, conferencing services can be planned, managedand controlled. It encompasses the following features:• Accounts management in organizational hierarchy• Services booking and scheduling• On line service management• Activity analysis and reportsAs far services are concerned, CSC comprises the following ones:• Audioconferencing: accessing a virtual room using a telephone for voice and a pcor mobile device for data• VideoConferencing: IP/ISDN based virtual rooms for audio and video conference• Webconferencing: a java application built to share data in combination with oneof the two services above• Webstreaming: a customizable live or on demand video broadcastFurther any technological consideration, teleconferencing and related travels reductioncontributes to lower CO2 production.Ing. Giuseppe FogliettaCASPURGruppo Automazione [email protected]
Conoscere per innovare: formazione per biblioteche e bibliotecari nell'esperienza CILEA
No full textSince 1975, CILEA offers innovative services to its customers - especially for universities and even for libraries.
Starting from 2009 there are two novelties their make different the usual training offer: a) a wider and variegated activities annual calendar; b) the decision to supply courses in the new office of CILEA in Rome, with a room equipped for training.Da ormai oltre un trentennio CILEA fornisce ai suoi utenti servizi innovativi, anche nel campo delle biblioteche, in particolare per le Università. A partire dal 2009, tuttavia, due novità hanno reso significativamente diversa rispetto agli anni precedenti l’offerta formativa di CILEA: a) la strutturazione di un portfolio formativo ampio e variegato, con la predisposizione di un calendario annuale delle attività; b) la decisione di erogare corsi anche nella nuova sede romana del Consorzio, attiva proprio dai primi mesi di quest’anno e dotata di una sala attrezzata per la formazione
Il modello di tasking in OpenMP
No full textThe widespread adoption of multicore processors in all kind of computing devices is springing interest for parallel computing, which is the only approach to achieve the promised performance boosts. Parallel computing is not easy, and the resulting complexity, which is usually tolerated in the computational science field, must be strictly controlled in commercial software life cycles. OpenMP is a widely supported industrial standard for parallel computing on multiprocessors systems. Its basic principles, simplicity and incremental approach, make it an extremely productive paradigm. Up to version 2.5, OpenMP didn’t directly support parallelization of algorithms in which more work is generated dynamically and with irregular patterns as data are processed. These algorithms are of growing relevance in the scientific realm, and are widespread in most commercial software. OpenMP 3.0 introduced a new tasking model, that allows work to be dynamically generated and assigned to idle processors. CASPUR was a very active contributor to the new model development
L'Università di Palermo ha scelto SURplus per il "governo" della Ricerca
No full textThe SURplus system has been recently acquired by the Università degli Studi of Palermo. Its most significant modules are already implemented: the WF (Work Flow) module for research projects management, the OA (Open Archive) module for research products management, and the BI (Business Intelligence) module that extracts and aggregates data from other system components to produce reports and statistics.Il sistema SURplus è stato acquisito dall'Università degli Studi di Palermo ed è già operativo nei suoi moduli più significativi: la gestione dei Progetti di Ricerca (modulo WF), il repository documentale di Ateneo basato su protocolli Open Archive (modulo OA) e la fruizione delle informazioni depositate negli archivi SURplus tramite reports e aggregazioni statistiche secondo una logica di Business Intelligence (modulo BI)