61 research outputs found
Short and Long Term Extreme Reliability Analysis Applied to Floating Wind Turbine Design
No full textThis paper describes and exemplifies an efficient methodology to assess, jointly and in a single calculation, the short and long terms failure probabilities associated to the extreme response of a floating wind turbine, subjected to wind and wave induced loads. This method is applied to the realistic case study OC3-Hywind used in phase IV of the IEA (International Energy Agency) Annex XXIII Offshore Code Comparison Collaboration. The key point of the procedure, derived from the outcrossing approach, consists in computing the mean of the outcrossing rate of the floating wind turbine response in the failure domain over both the short term variables and the ergodic variables defining long term parameters.</jats:p
« Ah ! qui dira les torts de l’Égypte... » Lorsque Paul Perdrizet louait les mérites de l’hellénisme à Franz Cumont
No full textAmong the pages of an off-print of Franz Cumont preserved at the Academia Belgica, an unpublished letter by Paul Perdrizet (1870-1937) has recently been discovered. Paul Perdrizet was a Hellenist, an archaeologist and the author of a number of publications relative to Greece, Anatolia, the Near East and to Egypt under Hellenic influence. In that letter Perdrizet airs fierce criticisms against Egyptian Hellenism in the Lagid era. The analysis of that document and of the intellectual context wherein it takes place provides an opportunity to ponder the perception Franz Cumont had of the land of the Pharaos and his way of interpreting the encounter between Hellenic culture and Egyptian culture in Hellenistic times.
Haut de pageParmi les pages d’un tirage à part de Franz Cumont conservé à l’Academia Belgica, on a récemment découvert une lettre inédite de Paul Perdrizet (1870-1937), helléniste, archéologue, auteur de nombreuses publication touchant à la Grèce, à l’Anatolie, au Proche-Orient et à l’Égypte sous influence hellénique. Dans cette lettre, Perdrizet exprime de virulentes critiques à l’encontre de la culture égyptienne et à son influence négative sur l’hellénisme d’époque lagide. L’analyse de ce document et du contexte intellectuel dans lequel il s’insère fournit l’occasion de réfléchir sur la perception que Franz Cumont avait de la terre des pharaons et sur sa façon d’interpréter la rencontre entre la culture hellénique et la culture égyptienne à l’époque hellénistique
sj-pdf-1-vet-10.1177_03009858241231556 – Supplemental material for Eptesipox virus-associated lesions in naturally infected big brown bats
No full textSupplemental material, sj-pdf-1-vet-10.1177_03009858241231556 for Eptesipox virus-associated lesions in naturally infected big brown bats by Ursula G. Perdrizet, Janet E. Hill, Champika Fernando, LaRhonda Sobchishin, Vikram Misra and Trent K. Bollinger in Veterinary Pathology</p
sj-pdf-1-vet-10.1177_03009858241244849 – Supplemental material for Tissue and cellular tropism of Eptesicus fuscus gammaherpesvirus in big brown bats, potential role of pulmonary intravascular macrophages
No full textSupplemental material, sj-pdf-1-vet-10.1177_03009858241244849 for Tissue and cellular tropism of Eptesicus fuscus gammaherpesvirus in big brown bats, potential role of pulmonary intravascular macrophages by Ursula G. Perdrizet, Janet E. Hill, LaRhonda Sobchishin, Baljit Singh, Champika Fernando, Trent K. Bollinger and Vikram Misra in Veterinary Pathology</p
Splenosis involving the gastric fundus, a rare cause of massive upper gastrointestinal bleeding: a case report and review of the literature
No full textJason Reinglas,1 Kirstin Perdrizet,1 Stephen E Ryan,2 Rakesh V Patel1 1Department of Medicine, 2Department of Diagnostic Imaging, University of Ottawa, Ottawa Hospital, Ottawa, ON, Canada Abstract: Splenosis, the autotransplantation of splenic tissue following splenic trauma, is uncommonly clinically significant. Splenosis is typically diagnosed incidentally on imaging or at laparotomy and has been mistakenly attributed to various malignancies and pathological conditions. On the rare occasion when splenosis plays a causative role in a pathological condition, a diagnostic challenge may ensue that can lead to a delay in both diagnosis and treatment. The following case report describes a patient presenting with a massive upper gastrointestinal bleed resulting from arterial enlargement within the gastric fundus secondary to perigastric splenosis. The cause of the bleeding was initially elusive and this case highlights the importance of a thorough clinical history when faced with a diagnostic challenge. Treatment options, including the successful use of transarterial embolization in this case, are also presented. Keywords: therapeutic, endoscopy, UGIB, interventio
Report on the EC epidemiological survey on the relationship between air pollution and respiratory health in primary school children
No full textStress Assessment in Armour Layers of Flexible Risers
No full textThe accurate modeling of offshore flexible risers behaviour remains a great challenge because of (i) their complex internal structure, (ii) the variable nature of the loads along the pipe (tension, curvature, internal and external pressures), (iii) and the interactions with structures used to limit the pipe curvature. Technip and IFP have been codeveloping for many years models dedicated to stresses calculation in the armour wires, to assess the flexible lifetime. These models must account for a large number of potential inner contacts (contacts between upper and lower layers, lateral contacts between adjacent armour wires in the same layer) as well as external contacts (bend stiffener, arch, bellmouth or other curvature limitation setup). The paper presents a comparison between 3 models with different level of complexity and realism. The first one is a in house model, whereas the two others were developed on the basis of the commercial FE code Abaqus. The first model, Life6, is based on some simplified assumptions in particular the fact that periodic solutions are assumed (given constant curvature in the pipe) and uses analytical solutions of equilibrium of wires on a torus (the bend pipe). The effect of non uniform curvature (in particular end-fitting proximity) is not considered in this model. The second model, namely 3D/Periodic model, is still based on a periodic assumption, but can cope with severe loadings (such as large curvature of the pipe or compression) leading to specific wires contact interactions. Abaqus Standard (Implicit scheme) is used. The third model, called 3D/Explicit model, is a full length model, as it includes end fittings effects, outer structure (like stiffener) interactions and any curvatures variations along the pipe. All contacts interactions are considered. The number of DOFs involved in the analysis requires the use of an explicit integration scheme (Abaqus Explicit) running on a parallel platform. These models are cross validated on a dedicated case study that consisted of a pressurized pipe cyclically bent with constant curvature. The validation of the model results is very satisfying even when lateral contacts between wires occur. Finally, a comparison of the 3D/Explicit model results with experimental data is presented. This model provides a very good estimation of the flexible behavior and of the end fitting effects.</jats:p
Vivienda sobre el Marne. Francia
No full textLa vivienda está situada sobre un terreno de pendiente muy acusada hacia el norte, orientación de la fachada noble de la casa, totalmente acristalada
Pediatric Pneumococcal Conjugate Vaccine and Dosing Schedule Perceptions Among Health Care Providers and Caregivers in Germany, France, Spain, and Greece
No full textAbstract Introduction Most European infant national immunization programs (NIPs) recommend pneumococcal conjugate vaccines (PCVs), which currently cover 10–15 serotypes administered in a three-dose schedule (two primary plus one booster). Recently, a PCV covering 20 serotypes that is administered in a four-dose schedule (three primary plus one booster) was licensed. Methods An online survey was administered to collect data from health care providers (HCPs) and caregivers of children aged 0–5 (including expectant mothers) in four European countries (Germany, France, Spain, and Greece). All caregiver respondents had a shared or full responsibility to make health decisions for their child. Data on opinions, perceptions, and openness to a change in childhood vaccination dosing schedules were collected, along with demographic information for HCPs as well as caregivers. Results A total of 601 HCPs and 1954 caregivers were recruited across the four countries. Nearly all HCPs (93%) agreed that broader serotype coverage against pneumococcal disease for children is a significant unmet need, and 92% had a “sense of urgency” to vaccinate children. Both HCPs and caregivers were supportive of an additional PCV dose and doctor visit, assuming it provided at least 20% more serotype coverage than what is currently available. Caregivers strongly agreed on the importance of full vaccination for pneumococcal disease, even if an extra dose and visit to the doctor was required. Conclusions HCPs and caregivers were virtually unanimous in their support for a PCV with broader serotype coverage and showed a subsequent willingness to include an extra infant dose/visit. These results can help guide broader discussions regarding public health policy and vaccine administration in the context of important efforts to reduce the global disease burden associated with pneumococcal disease
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