An Event-Driven Inter-Vehicle Communication Protocol to Attenuate Vehicular Shock Waves

in International Conference on Connected Vehicles and Expo (2014, November)

In this paper we investigate an event-driven Inter-Vehicle Communication protocol to mitigate shock waves in dense traffic situation. From previous work we know that flooding or frequent beaconing require ... [more ▼]

In this paper we investigate an event-driven Inter-Vehicle Communication protocol to mitigate shock waves in dense traffic situation. From previous work we know that flooding or frequent beaconing require excessive network resources. To overcome this limitation we focus on an efficient message exchange mechanism requiring as few network resources as possible, while still providing timely and accurate traffic information. We designed Density Redistribution through Intelligent Velocity Estimation (DRIVE), an event-driven Inter-Vehicle Communication protocol that learns about traffic conditions ahead and recommends optimal velocities in order to prevent the formation of vehicular shock waves. We demonstrate that our approach of reacting in case of traffic fluctuations leads to significant improvements in overall traffic flow. Furthermore we show that even a low number of equipped vehicles is sufficient to achieve this target. [less ▲]

Eventing Europe. Broadcasting and the Mediated Performances of Europe.

in Badenoch, A (Ed.) Materializing Europe. Transnational Infrastructures and the Project of Europe. (2010)

Eventing Europe. Europäische Fernseh- und Mediengeschichte als Zeitgeschichte.

in Medien-Debatten-Öffentlichkeiten in Deutschland und Frankreich im 19. und 20. Jahrhundert / Medias, Débats et Espaces Publiques en Allemagne et en France aux 19e et 20e siècles. (2011)

Eventually everything connects

Speeches/Talks (2018)

If you are reading these lines, you are probably curious about the type of experience that you would have as an attendee of this talk. You might wonder whether the topic would match your interests ... [more ▼]

If you are reading these lines, you are probably curious about the type of experience that you would have as an attendee of this talk. You might wonder whether the topic would match your interests, whether the speaker will be good enough to satisfy your expectations, whether you will feel inspired, exhilarated, or whether you will have concrete tools to bring back to your work. While you are usually the ones shaping people’s experiences, you are striving for nice experiences as well. Designing for human experiences is one of the most challenging yet fascinating activities. It is a responsibility that we should embrace with humility and dedication. To face the complexity of our mission, we need to draw on theoretical knowledge, methodological skills and of course on our shared professional expertise, as a community. While UX practitioners are working hard at the front lines to design better products or services, scientists work in the shadows to develop and consolidate a myriad of novel and highly valuable UX methods. During this talk, you will discover the ever-growing UX toolbox that could greatly support you in collecting richer, insightful and more valid data. From scientific theories to pragmatic methods, from academia to industry, from Luxembourg to Puerto Rico… Eventually everything connects. [less ▲]

Every quasitrivial n-ary semigroup is reducible to a semigroup

in Algebra Universalis (2019), 80(4),

We show that every quasitrivial n-ary semigroup is reducible to a binary semigroup, and we provide necessary and sufficient conditions for such a reduction to be unique. These results are then refined in ... [more ▼]

We show that every quasitrivial n-ary semigroup is reducible to a binary semigroup, and we provide necessary and sufficient conditions for such a reduction to be unique. These results are then refined in the case of symmetric n-ary semigroups. We also explicitly determine the sizes of these classes when the semigroups are defined on finite sets. As a byproduct of these enumerations, we obtain several new integer sequences. [less ▲]

Everyday Economic Practices as Processes of Regionalisations

Scientific Conference (2013, April 12)

For rural areas the utilisation of renewable energies can support a prosperous development. Economic practices are increasingly important for understanding changes in this sector. The interplay of ... [more ▼]

For rural areas the utilisation of renewable energies can support a prosperous development. Economic practices are increasingly important for understanding changes in this sector. The interplay of economic practices with corporate and governmental policies is related to questions of space and scale, such as: which everyday economic practices form energy markets changes; which conditions frame regional policies and practices; which processes of regionalisations evolve? The core interests of the paper are to analyse processes of constitution and reproduction of different types of energy regions and markets, and how practices and policies of such “energetic regionalisations“ intertwine – applying a multi-theory and multi-method (Interviews, Document Analysis) approach, focussing on biogas production in Luxembourg and Germany. I examine institutional and structural conditions that frame processes of regionalisations in the biogas economy and how these relate to socio-technical developments – based on evolutionary institutionalism and socio-technical transition studies. Important elements are: (1) The dynamic dimension of frameworks; (2) the concurrence of political, social, economic and technical processes; (3) the spatial differences of energy related policies. Economic practices in the biogas economy (e.g. by operators, investors) are another part of investigation - following the theory of Everyday Regionalisations. The important elements here are: (1) The constitution and reproduction of regions through economic practices; and (2) the threefold relationship between economic practices and governmental energy policies as: (a) policies supporting or restricting practices; (b) practices producing and restructuring policies – and regional markets; and (c) policies as environmental drivers for practices – and vice versa. The paper focuses on the conceptual framework of an ongoing research project. Preliminary results from the field study will be presented. [less ▲]

Evidence based practice in education: Between science and democracy.

in Reid, A; Hart, P; Peters, M.A. (Eds.) A Companion to Research in Education (2014)

«L'évidence des photos aériennes d'Auschwitz»

in Cahier international Etudes sur le témoignage audiovisuel des victimes des crimes et génocides nazis (2008)

Evidence for a workspace model of working memory from semantic implicit processing in neglect.

in Journal of Neuropsychology (2010), 4(2), 147-166

Evidence for individual face discrimination in non-face selective areas of the visual cortex in acquired prosopagnosia

in Behavioral Neurology (2008), 19(1-2), 75-79

Two areas in the human occipito-temporal cortex respond preferentially to faces: 'the fusiform face area' ('FFA') and the 'occipital face area' ('OFA'). However, it is unclear whether these areas have an ... [more ▼]

Two areas in the human occipito-temporal cortex respond preferentially to faces: 'the fusiform face area' ('FFA') and the 'occipital face area' ('OFA'). However, it is unclear whether these areas have an exclusive role in processing faces, or if sub-maximal responses in other visual areas such as the lateral occipital complex (LOC) are also involved. To clarify this issue, we tested a brain-damaged patient (PS) presenting a face-selective impairment with functional magnetic resonance imaging (fMRI). The right hemisphere lesion of the prosopagnosic patient encompasses the 'OFA' but preserves the 'FFA' and LOC. Using fMRI-adaptation, we found a larger response to different faces than repeated faces in the ventral part of the LOC both for normals and the patient, next to her right hemisphere lesion. This observation indicates that following prosopagnosia, areas that do not respond preferentially to faces such as the ventral part of the LOC (vLOC) may still be recruited to subtend residual perception of individual faces. [less ▲]