L’institutionnalisation des politiques locales de démocratie participative est une des principales difficultés rencontrées par leurs promoteurs. Ces politiques ne remplissent pas plusieurs critères d’une institution : permanence, dépersonnalisation, reconnaissance et prévisibilité. Pourtant, les offres institutionnelles de participation sont toujou...
Understanding how vulnerable road users (cyclists and pedestrians) behave enables the construction of better roadways with adapted geometric and surface design which leads to improve cycling safety and comfort. This study examines the behavior of cyclists using an instrumented city bicycle that allows collecting exact data about bicycle dynamics, t...
The PumpET (Pump Erosion Test) is a field device dedicated to measuring the erodibility of submerged sediments. After a review of some of the many existing erodimeters, we will present the main steps in the development of the PumpET prototype and the results of the first experimental campaigns before concluding with the prospects for further develo...
In order to estimate the resuspension of the particles empirically, it is necessary to carry out a homogeneous distribution of the particles on the tested surfaces. Thus, in many studies, seeding or deposition in experimental chambers is performed to quantify initial concentrations for subsequent resuspension experiments. The current study was carr...
Dust emission is a major issue in general but even more for civil engineering professionals. This is particularly important on earthmoving sites with truck traffic on compacted soils. Suspended dust causes many troubles, including visibility mitigation, which leads to safety risks. To prevent the lift of particles, soils are watered abundantly. Whe...
An experimental campaign was carried out on a test track to assess resuspension of dust by vehicle traffic. Two vehicles were driven on a road covered by four different types of particles representing a wide range of fine soils. Each test consisted of running one of the vehicles at a given speed (30, 45 or 60 km.h-1) over one of the type of particl...
This paper is devoted to the investigation of the density sorting of grains using water jigging. Experiments achieved in a laboratory scale water jig for two initial binary bed configurations are studied and compared to numerical results. The vertical composition of the deposit is estimated after different number of water pulses to represent the so...
The effect of macropore flow on solute transport has spurred much research over the last forty years. In this study, non-reactive solute transport in columns filled by macropored porous media was experimentally and numerically investigated, and the emphasis was put on the study of exit effects, whose very existence is inherent to the finite size of...
In order to succeed, technology ventures need to find a profitable market application for their technology. Although external market actors may provide important information for the identification and validation of potential technology-market combinations, it remains largely unclear how technology ventures can involve them in this process. Building...
The effect of macropore flow on solute transport has spurred much research over the last forty years. In this study, non-reactive solute transport in water-saturated columns filled with porous media crossed by a macropore was experimentally and numerically investigated. The emphasis was put on the study of exit effects, whose very existence is inhe...
