Exemple : le réaménagement de la rue Notre-Dame à Montréal - Québec. Conception intégrée des infrastructures routières en milieu urbain

Au Québec les projets routiers d'envergure doivent être évalués par le Bureau d'Audiences Publiques sur l'Environnement (BAPE), sorte de tribune où s'expriment les oppositions et les alliances du partenariat . Ce passage en audience publique a complètement bouleversé le projet de réaménagement de la rue Notre Dame : initialement prévu en autoroute urbaine cette audience a révélé que de multiples partenaires préféraient un boulevard urbain. La rue Notre-Dame est le dernier tronçon autoroutier non aménagé qui permettrait à Montréal de boucler un périphérique autour du centre ville avec l'autoroute 25 à l'est, et l'autoroute Ville-Marie à l'ouest . La dernière pièce manquante de ce possible périphérique est en grande partie située à l'intérieur de zones urbanisées traversant un des quartier les plus pauvre de Montréal, voire du Canada. Ce projet maintes fois reporté ne résulte pas d'une commande politique mais de l'initiative du personnel de la Direction de l'Île de Montréal du Ministère des Transports du Québec (MTQ). Au départ ces derniers sont intervenus suite aux plaintes répétées de résidants dues à des problèmes de circulation, puis il s'est avéré que la rue devait être réaménagée dans son ensemble. Le MTQ mobilise des compétences en interne et avec les autres ministères (partenariat interministériel) mais le partenaire le plus important qui conditionne l'élaboration du projet est la Ville de Montréal. Un processus de partenariat a aussi été élaboré avec les acteurs socioéconomiques (organismes de gestion des transports collectifs, Port de Montréal, . . .) et des acteurs socio-communautaires (en particulier un organisme qui travaille à l'amélioration du quartier par une action sur le cadre bâti). Le projet a donc été élaboré dans le souci d'intégrer les préoccupations de multiples partenaires et avec une approche de type projet urbain. D'un point de vue technique c'est une autoroute essentiellement en tranchée avec certaines parties à niveau et d'autres en tunnel. Mais après la tenue de l'audience publique au BAPE, coïncidant avec un changement de municipalité, le MTQ est invité à revoir son projet suite à l'opposition d'une majorité de participants (y compris la nouvelle municipalité) préconisant plutôt un concept de boulevard urbain moins traumatisant pour le milieu environnant et plus durable . Ce revirement s'explique aussi par l'intervention de groupes militants de l'environnement qui profitent de tribunes publiques comme le BAPE pour faire valoir leurs causes qui dépassent les frontières du projet

THREE-DIMENSIONAL NAVIER-STOKES PREDICTION OF HEAT TRANSFER WITH FILM COOLING

Three-dimensional Navier-Stokes calculations have been performed on various geometries in the presence of discrete-hole injection. The quality of the aerodynamic and thermal predictions of the flow is assessed by comparison . to experiments. The code used for the calculations is developed at ONERA and haS previously been presented by various authors . It solves the unsteady set of three-dimensional Navier-Stokes equations, completed by a mixing-length turbulence model, using a finite volume technique. The multi-domain approach of the code has facilitated the treatment of this type of geometry. The injection holes are discretized on cylindrical subdomains which overlap the mesh of the main flow. Two applications of the code are presented in this paper. First, a calculation was performed on a row of hot jets injected into a flat plate turbulent boundary layer. Secondly, the code was tested on a plane nozzle guide vane grid with multiple injections. Heat transfer rates, temperature and velocity profiles are compared to experimental data

QEYSSat 2.0 -- White Paper on Satellite-based Quantum Communication Missions in Canada

We present the white paper developed during the QEYSSat 2.0 study, which was undertaken between June 2021 and March 2022. The study objective was to establish a technology road-map for a Canada-wide quantum network enabled by satellites. We survey the state-of-art in quantum communication technologies, identify the main applications and architectures, review the technical readiness levels and technology bottlenecks and identify a future mission scenario. We report the findings of a dedicated one-day workshop that included Canadian stakeholders from government, industry and academia to gather inputs and insights for the applications and technical road-map. We also provide an overview of the Quantum EncrYption and Science Satellite (QEYSSat) mission expected to launch in 2024-2025 and its anticipated outcomes. One of the main outcomes of this study is that developing the main elements for a Canada-wide quantum internet will have the highest level of impact, which includes Canada-wide entanglement distribution and teleportation. We present and analyze a possible future mission ('QEYSSat 2.0') that would enable a long range quantum teleportation across Canada as an important step towards this vision.Comment: 108 pages, 38 figures, white paper to be submitted to CJ

120 Superiority of CT scan over transthoracic echocardiography in predicting aortic regurgitation after TAVI

BackgroundParavalvular aortic regurgitation (AR) occurs in up to 86% of patients undergoing Transcatheter Aortic Valve Implantation (TAVI). Its prevalence remains unchanged after one year follow-up but its determinants are unclear. We sought to evaluate the impact of annulus measurement by transthoracic echocardiography (TTE) and by CT scan on the occurrence of AR.MethodsThe study included 43 symptomatic patients (83±8 years, 72% in NYHA≥III) with severe aortic stenosis [0.76±0.19cm2, mean gradient 42±14mmHg] who underwent TAVI using CoreValve® LLC Percutaneous Aortic Valve Implantation System, Medtronic, Minneapolis USA. Left ventricular outflow tract (LVOT) area was computed from LVOT diameter (21±2mm) by TTE using a spherical model and from CT using an ellipsoidal model according to the larger (25±3mm) and the smaller outflow tract diameters (22±3mm). These data were compared to the prosthesis area and the occurrence of AR after TAVI.ResultsIn patients with AR greater or equal to 2/4 (32%), LVOT area measured by CT was significantly greater as compared to patients with no or mild AR (478±65mm 2 vs. 411±85mm2, p=0.009). Furthermore, the difference between actual prosthesis area and LVOT area measured by CT scan was significantly smaller (113±55 vs. 171±67, p=0.009) in patients with significant AR (≥2/4) after TAVI. In contrast, LVOT area from TTE did not correlate with AR severity.ConclusionCT scan is more accurate than TTE for calculating LVOT area for prosthesis sizing before TAVI in order to avoid post-implantation AR

Physicochemical characteristics and toxicity of surface-modified zinc oxide nanoparticles to freshwater and marine microalgae

published_or_final_versio

CATLIFE (Complementary Arm for Target LIke FragmEnts): Spectrometer for Target like fragments at VAMOS++

The multi-nucleon transfer reaction between 136Xe beam and 198Pt target at the beam energy 7 MeV/u was studied using the large acceptance spectrometer VAMOS++ coupled with the newly installed second arm time-of-flight and delayed $\gamma$-ray spectrometer CATLIFE (Complementary Arm for Target LIke FragmEnts). The CATLIFE detector is composed of a large area multi-wire proportional chamber and the EXOGAM HPGe clover detectors with an ion flight length of 1230 mm. Direct measurement of the target-like fragments (TLF) and the delayed $\gamma$-rays from the isomeric state helps to improve TLF identification. The use of the velocity of TLFs and the delayed $\gamma$-ray demonstrate the proof of principle and effectiveness of the new setup

River histories : A thematic review

Peer reviewe

Snapshot : 2013 : 01 : 07 : 30 best public regional colleges

Mentions US News and World Report\u27s placement of USFSP among the top 30 public regional colleges in the South

Snapshot : 2013 : 01 : 07 : Workforce needs

USFSP\u27s curriculum focuses on academic areas that meet the needs of the local business community and workforce