Boosting Ride Sharing With Alternative Destinations

People living in highly populated cities increasingly experience decreased quality of life due to pollution and traffic congestion. With the objective of reducing the number of circulating vehicles, we investigate a novel approach to boost ride-sharing opportunities based on the knowledge of the human activities behind individual mobility demands. We observe that in many cases the activity motivating the use of a private car (e.g., going to a shopping mall) can be performed in many different places. Therefore, when there is the possibility of sharing a ride, people having a pro-environment behavior or interested in saving money can accept to fulfill their needs at an alternative destination. We thus propose activity-based ride matching (ABRM), an algorithm aimed at matching ride requests with ride offers, possibly reaching alternative destinations where the intended activity can be performed. By analyzing two large mobility datasets extracted from a popular social network, we show that our approach could largely impact urban mobility by resulting in an increase up to 54.69% of ride-sharing opportunities with respect to a traditional destination-oriented approach. Due to the high number of ride possibilities found by ABRM, we introduce and assess a subsequent ranking step to provide the user with the top-k most relevant rides only. We discuss how ABRM parameters affect the fraction of car rides that can be saved and how the ranking function can be tuned to enforce pro-environment behaviors. This is the a pre-print version. Full version is available at the IEEE Transactions in Intelligent Transportations Systems https://ieeexplore.ieee.org/document/837006

Analyses par la methode non destructive de la fliuorescence X de bijoux campaniens en or datant du VIIeme au IVeme siecles av.J.C.

Actes du colloque de Perigeux 199

Study on the technique of the Roman age mural paintings by micro-XRF with Polycapillary Conic Collimator and micro-Raman analyses

XRF and micro-Raman stratigraphic microanalyses of fragments of some mural paintings, belonging to the Archaeological Site of Oplonti (Napoli) and the Vigna Barberini site in the Palatino (Roma), were performed. In order to collimate the fluorescence X-rays emitted by the samples, an X-ray polycapillary conic collimator (PCC) has been used in front of the detector. This device arrangement is compact, versatile, and portable. The nature of the pigments, the compositional elements, and the thickness of the fragment layers have been studied. The stratigraphic analysis partially confirms the preparation techniques described by Plinius and Vitruvius; moreover it confirms the hypothesis that the artifacts are not fresco paintings. This work has been conducted within the context of a wider research on the Roman age mural paintings. (c) 2005 Elsevier SAS. All rights reserved

Apollo. A. 11(1995)

A. 11(1995) : Bisogni, S., Leuci, G., Rapuano, M., Studio dei micromammiferi rinvenuti in una tomba in località San Cataldo, Eboli (Salerno), P. 3 ; Colonna, G., 8 Una nuova iscrizione etrusca da Fratte di Salerno, P. 8 ; Scheich, C., Nouvelles considérations sur la tombe princière de Roscigno (Monte Pruno, Salerno): étude technique des ornements personnels en métal, P. 12 ; Paternoster, G., Rinzivillo, R., La tomba principesca di Roscigno (Monte Pruno, Salerno): analisi mediante XRF degli oggetti ornamentali, P. 29 ; Bonifacio, R., Una scoperta archeologica nella Salerno ottocentesca: la statua di Dioniso da Picenza, P. 31 ; Romito, M., Una necropoli romana in contrada Denteferro a Pontecagnano, P. 49 ; Lacerenza, G.,Pagano, M., A proposito delle testimonianze giudaiche di Nuceria Alfaterna, P. 64 ; Alaggio, R., La fondazione dell'Abbazia di Santa Maria di Cadossa. Strategie politico-istituzionali nel Vallo di Diano tra longobardi e normanni, P. 70 ; Cifelli, F., Santoro, U., Il centro antico di Salerno attraverso l'analisi dell'ambiente fisico, P. 102 ; Peduto, P., Ceramica magrehina nella costa di Amalfi, P. 116 ; Caskey, J., An early description of the Villa Rufolo in Ravello, P. 123 ; Fiengo, G., Russo, M., Un singolare monumento della Campania: l'insieme del campanile" e dell'arco di Aversa, P. 129 ; Ferrari, S., L'armeria di Villa Guariglia a Raito di Vietri sul Mare, P. 139 ; Cuccu, A., Ernestine Kannon: il design nella ceramica di Vietri. Prologo per una ricerca, P. 150.Dono Alfonso Andria, nov. 201