Results 1 to 10 of about 91 (82)

Unconfined Plunging of a Hyperpycnal River Plume Over a Sloping Bed and Its Lateral Spreading: Laboratory Experiments and Numerical Modeling

Water Resources Research, Volume 58, Issue 8, August 2022., 2022
Abstract Hyperpycnal (negatively buoyant) river inflow into lakes and oceans often develops three‐dimensional (3D) plunging flow patterns when laterally unconfined. To determine the 3D flow pattern characteristics, laboratory experiments of laterally unconfined plunging on a sloping bed were carried out using salinity to control the density difference.
H. Shi, M. E. Negretti, J. Chauchat, K. Blanckaert, U. Lemmin, D. A. Barry   +5 more
wiley   +1 more source

Infrastructural stripping and ‘recycling’ of copper: producing the state in an industrial town in Serbia

Social Anthropology, Volume 29, Issue 3, Page 586-601, August 2021., 2021
This paper explores infrastructural disruptions of utility provisioning caused by stealing of copper infrastructural parts in a copper‐processing town in Serbia. Such illicit practices of infrastructural stripping were part of copper circulation via theft, cynically referred to as ‘recycling’ of copper, and were incentivised by increased copper price ...
Deana Jovanović
wiley   +1 more source

Mécaniques des fluides et mécaniques quantiques Fluid Mechanics and Quantum Mechanics

Oil & Gas Science and Technology, 2006
Cette étude présente une méthode pour transformer les équations de Navier Stokes en l'équation de Schrddinger. Cette transformation permet le calcul simple des efforts de trainée et de portance sur un cylindre de longueur infinie en écoulement uniforme ...
Scmitt J.
doaj   +1 more source

Review of wave‐turbulence interactions in the stable atmospheric boundary layer

Reviews of Geophysics, Volume 53, Issue 3, Page 956-993, September 2015., 2015
Abstract Flow in a stably stratified environment is characterized by anisotropic and intermittent turbulence and wavelike motions of varying amplitudes and periods. Understanding turbulence intermittency and wave‐turbulence interactions in a stably stratified flow remains a challenging issue in geosciences including planetary atmospheres and oceans ...
Jielun Sun, Carmen J. Nappo, Larry Mahrt, Danijel Belušić, Branko Grisogono, David R. Stauffer, Manuel Pulido, Chantal Staquet, Qingfang Jiang, Annick Pouquet, Carlos Yagüe, Boris Galperin, Ronald B. Smith, John J. Finnigan, Shane D. Mayor, Gunilla Svensson, Andrey A. Grachev, William D. Neff   +17 more
wiley   +1 more source

Unsedated Transnasal Endoscopy: A Canadian Experience in Daily Practice

Canadian Journal of Gastroenterology and Hepatology, Volume 22, Issue 3, Page 243-246, 2008., 2008
BACKGROUND: Esophagogastroduodenoscopy (EGD) is the most frequently performed diagnostic procedure for upper gastrointestinal disorders. The procedure is routinely performed under conscious sedation in North America. A significant proportion of morbidity and mortality associated with EGD is related to hypoxia due to conscious sedation.
Sarah Cho, Naveen Arya, Katherine Swan, Maria Cirocco, Gabor Kandel, Paul Kortan, Norman Marcon   +6 more
wiley   +1 more source

Percutaneous Endoscopic Gastrostomy

Canadian Journal of Gastroenterology and Hepatology, Volume 3, Issue 1, Page 26-28, 1989., 1989
Sixty‐five patients who had endoscopic placement of a feeding tube between April 1984 and November 1987, were reviewed. Mean follow‐up was 245 days (range one to 1391 days). The most common indication for gastrostomy insertion was a neurologic disorder (83%) Prophylactic antibiotic (cefoxitin) was given to 55% of patients (86% from one hospital). Minor
Ronald J. Bridges, Lloyd R. Sutherland, Sydney Bass, Lorne M. Price   +3 more
wiley   +1 more source

Caractéristiques dynamiques d'un écoulement co-courant eau-huile-air Dynamic Characteristics of a Co-Current Water-Oil-Air Flow

Oil & Gas Science and Technology, 2006
Les auteurs présentent une étude expérimentale sur la structure locale d'un écoulement quasi parallèle co-courant à trois phases : eau-huile-air. L'objectif principal de cette étude est la détermination des contraintes de cisaillement aux interfaces eau ...
Fabre J., Barrau J. J., Mire A.
doaj   +1 more source

Simulations de l'écoulement turbulent marin avec un modèle de déconvolution [PDF]

Comptes Rendus. Mathématique, 2009
On introduit une équation de déconvolution qui généralise l'algorithme de Van-Cittert pour des conditions aux limites de type océanique avec vent fixé. On en déduit un modèle de SGE pour lequel on a existence et unicité d'une solution régulière. Nous détaillons un ensemble de simulations numériques qui montrent l'intérêt pratique du modèle.
Bennis, Anne-Claire, Lewandowski, Roger, Titi, Edriss   +2 more
openaire   +3 more sources

Influence du rayonnement sur un écoulement de convection naturelle turbulent en cavité différentiellement chauffée

Entropie
Un écoulement de convection naturelle fortement turbulent (Ra = 1,2 × 10^11) est généré au sein d’une cavité différentiellement chauffée. L’objectif de ce travail consiste à caractériser expérimentalement les effets du rayonnement sur cet écoulement
Vincent Daurenjou, Florian Morea, Didier Saury   +2 more
doaj   +1 more source

Turbulent Flow of Saudi Non-Newtonian Crude Oils in a Pipeline Écoulement turbulent de bruts non-newtoniens séoudiens dans une canalisation

Oil & Gas Science and Technology, 2006
Rheological properties of Saudi Arab-Light, Arab-Berri and Arab-Heavy crude oils were measured with Brookfield Viscometer (LVT Model) at temperatures 10, 15, 20, 25, 38, 55 and 70°C.
Hemeidia A. M., Desouky S. E. M.
doaj   +1 more source