64 research outputs found
Hydrostatic pressure wheel for regulation of open channel networks and for the energy supply of isolated sites
The Hydrostatic Pressure Wheel is an innovative solution to regulate ïŹow discharges and waters heights in open channel networks. Indeed, they can maintain a water depth while producing energy for supplying sensors and a regulation system. To prove the feasibility of this solution, a complete model of water depthâdischarge rotational speed relationship has been elaborated. The latter takes into account the different energy losses present in the turbine. Experimental measurements achieved in IMFT laboratory allowed to calibrate the coefïŹcients of head losses relevant for a large range of operating conditions. Once the model had been validated, an extrapolation to a real case showed the possibility of maintaining upstream water level but also of being able to produce sufïŹcient energy for supplying in energy isolated sites. The solution thus makes it possible to satisfy primary energy needs while respecting the principles of frugal innovation: simplicity, robustness, reduced environmental impact
OGLE-2018-BLG-1011Lb,c: Microlensing planetary system with two giant planets orbiting a low-mass star
We report a multiplanetary system found from the analysis of microlensing event OGLE-2018-BLG-1011, for which the light curve exhibits a double-bump anomaly around the peak. We find that the anomaly cannot be fully explained by the binary-lens or binary-source interpretations and its description requires the introduction of an additional lens component. The 3L1S (three lens components and a single source) modeling yields three sets of solutions, in which one set of solutions indicates that the lens is a planetary system in a binary, while the other two sets imply that the lens is a multiplanetary system. By investigating the fits of the individual models to the detailed light curve structure, we find that the multiple-planet solution with planet-to-host mass ratios âŒ9.5 Ă10-3 and âŒ15 Ă10-3 are favored over the other solutions. From the Bayesian analysis, we find that the lens is composed of two planets with masses 1.8+3.4-1.1MJ and 2.8+5.11.7 MJ around a host with a mass 0.18 +0.33-0.10M0 and located at a distance 7.1+1.1-1.5 kpc. The estimated distance indicates that the lens is the farthest system among the known multiplanetary systems. The projected planet-host separations are a â„,2 = 1.8+2.1-1.5 au (0.8+0.9-0.6 au) and a â„,3 = 0.8+0.9-0.6 where the values of a â„,2 inside and outside the parenthesis are the separations corresponding to the two degenerate solutions, indicating that both planets are located beyond the snow line of the host, as with the other four multiplanetary systems previously found by microlensing
Analyse écorégionale marine de Nouvelle-Calédonie : atelier d'identification des aires de conservation prioritaires
Dans le cadre de l'initiative pour les rĂ©cifs coralliens du Pacifique sud (CRISP), le WWF-France a souhaitĂ© dĂ©velopper un projet pour la protection des rĂ©cifs et des lagons nĂ©o-calĂ©doniens. L'atelier, qui s'est dĂ©roulĂ© les 10 et 11 aoĂ»t Ă NoumĂ©a, avait pour objectif de rassembler les scientifiques et les experts du lagon nĂ©ocalĂ©donien pour identifier, sur la base de leur connaissance experte, les zones les plus remarquables du lagon (richesse, endĂ©misme, originalitĂ© des faunes et flores, espĂšces emblĂ©matiques, zones d'intĂ©rĂȘt fonctionnel) sur lesquelles doivent porter en prioritĂ© les efforts de conservation. Il a permis d'identifier 20 aires prioritaires pour la conservation, parmi lesquelles 6 ont un intĂ©rĂȘt mondial, 4 ont un intĂ©rĂȘt sur le plan rĂ©gional, les autres ayant un intĂ©rĂȘt local
OGLE-2018-BLG-1011L\lowercase{b,c}: Microlensing Planetary System with Two Giant Planets Orbiting a Low-mass Star
We report a multiplanetary system found from the analysis of microlensing
event OGLE-2018-BLG-1011, for which the light curve exhibits a double-bump
anomaly around the peak. We find that the anomaly cannot be fully explained by
the binary-lens or binary-source interpretations and its description requires
the introduction of an additional lens component. The 3L1S (3 lens components
and a single source) modeling yields three sets of solutions, in which one set
of solutions indicates that the lens is a planetary system in a binary, while
the other two sets imply that the lens is a multiplanetary system. By
investigating the fits of the individual models to the detailed light curve
structure, we find that the multiple-planet solution with planet-to-host mass
ratios and are favored over
the other solutions. From the Bayesian analysis, we find that the lens is
composed of two planets with masses and
around a host with a mass
and located at a distance
. The estimated distance indicates that the lens
is the farthest system among the known multiplanetary systems. The projected
planet-host separations are
() and ,
where the values of in and out the parenthesis are the
separations corresponding to the two degenerate solutions, indicating that both
planets are located beyond the snow line of the host, as with the other four
multiplanetary systems previously found by microlensing.Comment: 14 pages, 18 figures, 8 table
2019 International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations
The International Liaison Committee on Resuscitation has initiated a continuous review of new, peer-reviewed, published cardiopulmonary resuscitation science. This is the third annual summary of the International Liaison Committee on Resuscitation International Consensus on Cardiopulmonary Resuscitation and Emergency Cardiovascular Care Science With Treatment Recommendations. It addresses the most recent published resuscitation evidence reviewed by International Liaison Committee on Resuscitation Task Force science experts. This summary addresses the role of cardiac arrest centers and dispatcher-assisted cardiopulmonary resuscitation, the role of extracorporeal cardiopulmonary resuscitation in adults and children, vasopressors in adults, advanced airway interventions in adults and children, targeted temperature management in children after cardiac arrest, initial oxygen concentration during resuscitation of newborns, and interventions for presyncope by first aid providers. Members from 6 International Liaison Committee on Resuscitation task forces have assessed, discussed, and debated the certainty of the evidence on the basis of the Grading of Recommendations, Assessment, Development, and Evaluation criteria, and their statements include consensus treatment recommendations. Insights into the deliberations of the task forces are provided in the Justification and Evidence to Decision Framework Highlights sections. The task forces also listed priority knowledge gaps for further research
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