Search results for "RAIL"
showing 10 items of 699 documents
In the rail sector, France needs to do more to connect its regional networks to the European network
2023
In an article for "Le Monde" newspaper, the legal expert Martial Pernet notes that, despite the texts in force, which he urges to be applied, efforts must be made to achieve the unification of the European rail network.
Transportation noise and risk of stroke: a nationwide prospective cohort study covering Denmark
2021
AbstractBackgroundStudies on transportation noise and incident stroke are few and inconclusive. We aimed to investigate associations between road-traffic and railway noise and the risk of incident stroke in the entire Danish population.MethodsWe estimated road-traffic and railway noise (Lden) at the most and least exposed façades for all residential addresses across Denmark (2.8 million) for the period 1990–2017. Based on this, we estimated the 10-year time-weighted mean noise exposure for 3.6 million Danes aged >35 years, of whom 184 523 developed incident stroke during follow-up from 2000 to 2017. Analyses were conducted using Cox proportional-hazards models, with adjustment for va…
Des soldats noirs face au Reich: les massacres racistes de 1940
2015
International audience; Une « guerre pour la civilisation » germanique et pour l’Europe blanche : c’est ainsi que les nazis présentaient leur entreprise, qui avait également une dimension de revanche sur la Première Guerre mondiale et sur la « honte noire » infligée par les Français. En effet, depuis les années 1920, racistes et xénophobes allemands ne décoléraient pas : la France avait osé faire occuper le territoire de l’Allemagne par des soldats noirs, issus des troupes coloniales, et les nazis furent les plus virulents à le dénoncer. Lors de la campagne de France, en mai-juin 1940, environ trois mille de ces soldats coloniaux furent en conséquence assassinés, en dehors de toute action d…
A Branch-and-Cut Algorithm for the Single Truck and Trailer Routing Problem with Satellite Depots
2016
International audience; In the single truck and trailer routing problem with satellite depots (STTRPSD), a truck with a detachable trailer based at a main depot must serve the demand of a set of customers accessible only by truck. Therefore, before serving the customers, it is necessary to detach the trailer in an appropriate parking place (called either a satellite depot or a trailer point) and transfer goods between the truck and the trailer. This problem has applications in milk collection for farms that cannot be reached using large vehicles. In this work we present an integer programming formulation of the STTRPSD. This formulation is tightened with several families of valid inequaliti…
Branch-and-Price-and-Cut for the Truck-and-Trailer Routing Problem with Time Windows
2018
In this paper, we present a new branch-and-price-and-cut algorithm to solve the truck-and-trailer routing problem with time windows (TTRPTW) and two real-world extensions. In all TTRPTW variants, the fleet consists of one or more trucks that may attach a trailer. Some customers are not accessible with a truck-and-trailer combination, but can however be serviced by one if the trailer is previously detached and parked at a suitable location. In the first extension, the planning horizon comprises two days and customers may be visited either on both days or only once, in which case twice the daily supply must be collected. The second extension incorporates load transfer times depending on the …
A new design approach to the use of composite materials for heavy transport vehicles
2007
In order to keep or to reach a high level of competitiveness and performance of a product, it is necessary to explore all the possible solutions that allow the best compromise between costs and project requirements. By this point of view the study of alternative designs and/or materials to use, is an important aspect that can identify a new concept or way of thinking about a product. This paper presents how to make use of composite materials in the field of heavy vehicles transportation. A new semitrailer in composite material has been designed, using a methodical redesign approach and an optimisation process. The main innovation in this project is, besides the use of the Glass Fibre Reinfo…
Death receptors as targets in cancer
2014
Anti-tumour therapies based on the use PARAs (pro-apoptotic receptor agonists), including TRAIL (TNF-Related Apoptosis inducing Ligand) or monoclonal antibodies targeting TRAIL-R1 or TRAIL-R2, have been disappointing so far, despite clear evidence of clinical activity and lack of adverse events for the vast majority of these compounds, whether combined or not with conventional or targeted anti-cancer therapies. This brief review aims at discussing the possible reasons for the lack of apparent success of these therapeutic approaches and at providing hints in order to rationally design optimal protocols based on our current understanding of TRAIL signalling regulation or resistance for future…
Oltre la ricerca del Graal, il divenire del mito
2014
A mythologist's study of the Graal cultural tradition. Using Francesco Zambon's recent Metamorfosi del Graal as his starting point, the author undertakes an analysis on the importance of the Graal in Western mystical, philosophical and literary traditions throughout time, from the impact of the medieval Graal stories on the matière de Bretagne and beyond (Troyes, Boron), to the appeal of this myth in modern times, including its occurrence on Richard Wagner, Martin Heidegger, Simone Weil, Italo Calvino and Umberto Eco.
Il·lustració radical i contrail·lustració en Hamann i Herder: La polèmica sobre l'origen del llenguatge
2015
És ben coneguda la hipòtesi sobre l’origen del llenguatge que Johann Gottfried Herder va defensar en l’Abhandlung über den Ursprung der Sprache, premiat per l’Acadèmia de Berlín en 1771. Hi ofereix la visió d’un ésser humà capaç de desenvolupar de forma autònoma la predisposició al llenguatge que Déu li havia inserit. L’home desplega l’habilitat lingüística, d’una banda, des de la situació de dispersió que pateix el seu sentit interior pel fet de distanciar-se respecte de la determinació dels instints, més pròpia dels animals; i, d’altra banda, gràcies a la capacitat de concentrar l’atenció d’aquest sentit interior en un punt, un signe lingüístic que li serveix a la consciència per a flexio…
Ultrasonic Guided Waves-Based Monitoring of Rail Head: Laboratory and Field Tests in Advances in Civil Engineering
2010
Recent train accidents have reaffirmed the need for developing a rail defect detection system more effective than that currently used. One of the most promising techniques in rail inspection is the use of ultrasonic guided waves and noncontact probes. A rail inspection prototype based on these concepts and devoted to the automatic damage detection of defects in rail head is the focus of this paper. The prototype includes an algorithm based on wavelet transform and outlier analysis. The discrete wavelet transform is utilized to denoise ultrasonic signals and to generate a set of relevant damage sensitive data. These data are combined into a damage index vector fed to an unsupervised learning…