Results 21 to 30 of about 2,815 (152)

La simulation globale sur modèle réduit des écoulements de convection mixte [PDF]

La Houille Blanche, 1979
Les ecoulements de convection mixte se rencontrent frequemment dans de multiples domaines industriels, ventilation, pollution, reacteurs chimiques, reacteurs nucleaires ... Ces ecoulements sont caracterises par l'action simultanee d'effets d'inertie lies a une convection forcee et d'effets de gravite dus a des differences de densite provoquees par des ...
openaire   +1 more source

Sensitivity analysis of the solar rotation to helioseismic data from GONG, GOLF and MDI observations

, 2008
Accurate determination of the rotation rate in the radiative zone of the sun from helioseismic observations requires rotational frequency splittings of exceptional quality as well as reliable inversion techniques. We present here inferences based on mode
Eff-Darwich, A., Garcia, R. A., Jimenez-Reyes, S. J., Korzennik, S. G.   +3 more
core   +1 more source

Air–sea feedback in the northeastern tropical Atlantic in boreal summer at intraseasonal time‐scales

Quarterly Journal of the Royal Meteorological Society, Volume 151, Issue 770, July 2025 Part A.
This study investigates air–sea interactions in the northeastern tropical Atlantic at intraseasonal time‐scales, focusing on the feedback between sea‐surface temperature (SST) and surface winds. It finds that trade wind anomalies drive SST changes, creating a feedback loop that lasts 2–3 weeks.
Mamadou Thiam, Gaelle de Coetlogon, Malick Wade, Mamadou Sarr, Bouya Diop   +4 more
wiley   +1 more source

Welfare of beef cattle

EFSA Journal, Volume 23, Issue 7, July 2025.
Abstract This Scientific Opinion provides an assessment of beef cattle welfare focusing on risks related to flooring, water access, nutrition and feeding, high environmental temperatures, lack of environmental enrichment, lack of outdoor access, minimum space allowance and mixing practices. In addition, risks related to pasture and feedlots, weaning of
EFSA Panel on Animal Health and Welfare (AHAW), Søren Saxmose Nielsen, Julio Alvarez, Anette Boklund, Sabine Dippel, Fernanda Dorea, Jordi Figuerola, Mette S. Herskin, Virginie Michel, Miguel Angel Miranda Chueca, Eleonora Nannoni, Romolo Nonno, Anja B. Riber, Karl Stahl, Jan Arend Stegeman, Hans‐Hermann Thulke, Frank Tuyttens, Giulio Cozzi, Ute Knierim, Sònia Martí, Siobhan Mullan, Sean Ashe, Giulia Cecchinato, Eliana Lima, Olaf Mosbach‐Schulz, Marika Vitali, Martina Benedetta Zanna, Christoph Winckler   +27 more
wiley   +1 more source

Etude numérique et expérimentale de la convection mixte entre deux plans horizontaux à températures différentes [PDF]

International Journal of Heat and Mass Transfer, 1989
A combined numerical and experimental study of mixed laminar convection between horizontal parallel plates is reported. Numerical results by the finite difference method are presented for Rayleigh numbers between 2000 and 12000, Reynolds numbers between 1 and 9 and a Prandtl number of 0.7.
Ouazzani Touhami, Mohamed, Caltagirone, Jean-Paul, Meyer, Gilles, Mojtabi, Abdelkader   +3 more
openaire   +3 more sources

Simulation des transferts réactifs multi-constituants au sein des lits d’infiltration percolation – évaluation des capacités d’oxygénation [PDF]

, 2006
L’assainissement des eaux usées par infiltration percolation appartient à la filière de traitement des rejets polluants à cultures fixées. Dans un contexte géographique spécifique et pour une population avoisinant 500 à 1 000 équivalents habitants, elle ...
Mose, Robert, Sadowski, Antoine, Wanko, Adrien   +2 more
core   +1 more source

Impact of the Sea Surface Temperature in the North‐Eastern Tropical Atlantic on Precipitation Over Senegal

Journal of Geophysical Research: Atmospheres, Volume 129, Issue 3, 16 February 2024.
Abstract This study examines 40 years of monthly precipitation data in Senegal (1979–2018) using Climatic Research Unit observations and ERA5 reanalyzes, aiming to understand the influence of oceanic and atmospheric factors on Senegal's precipitation in July, August and September (JAS).
Mamadou Thiam, Ludivine Oruba, Gaelle de Coetlogon, Malick Wade, Bouya Diop, Abdou Karim Farota   +5 more
wiley   +1 more source

Simulations of turbulent convection in rotating young solar-like stars: Differential rotation and meridional circulation

, 2007
We present the results of three-dimensional simulations of the deep convective envelope of a young (10 Myr) one-solar-mass star, obtained with the Anelastic Spherical Harmonic code.
Allan Sacha Brun, Barnes J. R., Bouvier J., Jerome Ballot, Kitchatinov L. L., Kitchatinov L. L., Kuker M., Miesch M. S., Randich S., Sylvaine Turck‐Chieze, Ventura P., Zahn J.-P.   +11 more
core   +1 more source

Copepods use chemical trails to find sinking marine snow aggregates [PDF]

, 2012
Copepods are major consumers of sinking marine particles and hence reduce the efficiency of the biological carbon pump. Their high abundance on marine snow suggests that they can detect sinking particles remotely.
Kiørboe, Thomas, Koski, Marja, Lombard, Fabien   +2 more
core   +3 more sources

Reduced-Order Thermal Behavioral Model Based on Diffusive Representation [PDF]

, 2009
14 páginas, 15 figuras, 2 tablas.-- et al.The virtual prototyping of power electronic converters requires electrothermal models with various abstraction levels and easy identification.
Allard, Bruno, Jordà, Xavier, M’Rad, Sabrine, Perpiñà, X., Vellvehi Hernández, Miquel   +4 more
core   +1 more source