Academic literature on the topic 'Coupage au jet'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Coupage au jet.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Coupage au jet"

1

Kozlov, Viktor V., Maria V. Litvinenko, and Grigory V. Kozlov. "The Round Jet in a Cross-Flow (Review)." Siberian Journal of Physics 5, no. 1 (2010): 9–28. http://dx.doi.org/10.54362/1818-7919-2010-5-1-9-28.

Full text
Abstract:
Results of experimental and numerical studies on characteristics of the developing round jet with parabolic velocity profile in a crossflow are presented. The basic differences of characteristics (parameters, properties) of development of the round jet with parabolic velocity profile and «shock» velocity profile are showed. As it is outlined, the round jet with parabolic velocity profile in a crossflow is transformed to two stationary counter rotating vortices. In the current work it is shown, that the most unsteady high-frequency eigenmodes correspond wave packets onto the couple of counter r
APA, Harvard, Vancouver, ISO, and other styles
2

Pérez Ramírez, Lucía, Anthony Boucly, Florent Saudrais, et al. "The Fermi level as an energy reference in liquid jet X-ray photoelectron spectroscopy studies of aqueous solutions." Physical Chemistry Chemical Physics 23, no. 30 (2021): 16224–33. http://dx.doi.org/10.1039/d1cp01511g.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

ALVES, LEONARDO S. de B., ROBERT E. KELLY, and ANN R. KARAGOZIAN. "Local stability analysis of an inviscid transverse jet." Journal of Fluid Mechanics 581 (May 22, 2007): 401–18. http://dx.doi.org/10.1017/s0022112007005873.

Full text
Abstract:
A local linear stability analysis is performed for a round inviscid jet with constant density that is injected into a uniform crossflow of the same density. The baseflow is obtained from a modified version of the inviscid transverse jet near-field solution of Coelho & Hunt (J. Fluid Mech.vol. 200, 1989, p. 95) which is valid for small values of the crossflow-to-jet velocity ratio λ. A Fourier expansion in the azimuthal direction is used to couple the disturbances with the three-dimensional crossflow. The spatial growth rates of the modes corresponding to the axisymmetric and first helical
APA, Harvard, Vancouver, ISO, and other styles
4

Rui, Zilong, Kuibin Zhou, Ruixing Dong, and Xia Shi. "Experimental Study on Double Jet Flames with Different Nozzle Diameters." Advances in Computer and Engineering Technology Research 1, no. 2 (2024): 460. http://dx.doi.org/10.61935/acetr.2.1.2024.p460.

Full text
Abstract:
Double jet flames are commonly observed in the energy industry. A facility consisting of a double jet flames apparatus, was designed to experimentally simulate the interaction of double jet fires with different spaces and nozzle diameters. It has been found that the exit momentum, nozzle diameters and nozzle spacing significantly affect the flame behavior. The experimental results show that the flame merging probability (Pm) of double jet fires with different nozzle diameters can be fitted with dimensionless parameters that couple the Froude number(Fr) and the distance between fire sources. Ad
APA, Harvard, Vancouver, ISO, and other styles
5

Haroon, R. F., and D. Roy. "A simulation study of the soft and hard radiations using jets at the LHC." Journal of Physics: Conference Series 2663, no. 1 (2023): 012052. http://dx.doi.org/10.1088/1742-6596/2663/1/012052.

Full text
Abstract:
Abstract In this work, different aspects of the high-energy radiation are looked at considering the LHC scenario. An event-shape variable and several jet substructure observables are studied with the Mote Carlo event simulators at the 13 TeV center of mass energy scale to mimic the current LHC environment. The event-shape and the jet substructure observables are chosen such that they are not only sensitive to the different aspects of the high energy radiation measurement but also exhibit promising features to distinguish the possible existence of new physics that considers a dark matter candid
APA, Harvard, Vancouver, ISO, and other styles
6

RAMAN, GANESH, and RAY TAGHAVI. "Coupling of twin rectangular supersonic jets." Journal of Fluid Mechanics 354 (January 10, 1998): 123–46. http://dx.doi.org/10.1017/s0022112097007441.

Full text
Abstract:
Twin jet plumes on aircraft can couple, producing dynamic pressures significant enough to cause structural fatigue. For closely spaced jets with a moderate aspect ratio (e.g. 5), previous work has established that two coupling modes (antisymmetric and symmetric) are kinematically permissible. However, the dynamics of twin-jet coupling have remained unexplored. In this paper a more fundamental assessment of the steady and unsteady aspects of twin-jet coupling is attempted. While we document and discuss the nozzle spacings and Mach numbers over which phase-locked coupling occurs, our concentrati
APA, Harvard, Vancouver, ISO, and other styles
7

Cuahquentzi, Noel M., Luis H. H. Gómez, Pablo R. López, et al. "Evaluation of the Structural Integrity of the Jet Pumps of a Boiling Water Reactor under Hydrodynamic Loading." Defect and Diffusion Forum 348 (January 2014): 261–70. http://dx.doi.org/10.4028/www.scientific.net/ddf.348.261.

Full text
Abstract:
The structural integrity of a jet pump assembly of a boiling water reactor (BWR) under hydrodynamic loading was evaluated. This arrangement, which has a riser joined with a couple of jet pumps by the transition piece, is part of the reactor recirculation system. It is submerged in water under pressure. The main function is to induce forced flow through the core of the reactor. A dynamic structural analysis was carried out with the finite element method. The first ten modes of vibration and their natural frequencies were calculated. The first five natural frequencies are in the range between 25
APA, Harvard, Vancouver, ISO, and other styles
8

Guo, Wen Liang, and Zheng Guo. "Nozzle Spraying Model of Combustion Thermal Spray." Advanced Materials Research 655-657 (January 2013): 211–17. http://dx.doi.org/10.4028/www.scientific.net/amr.655-657.211.

Full text
Abstract:
The flame used in combustion flame spraying is typical of a high-temperature free jet. The flow fields of free jets are multi-phase flows that couple the mass and heat transfer. The analytical and numerical solutions to turbulent flows are engineering approximations. This work uses Prandtle’s mixing-length theory to describe the flame spreading of free combustion spray jet and uses nozzle spray model to describe the distribution of the powder particles sprayed from powder nozzle to the substrate surface. The nozzle geometry and the parameters determine the distribution of the powder particles.
APA, Harvard, Vancouver, ISO, and other styles
9

Zhang, Xinxin, Jianming Peng, Jingqing Chen, Kun Bo, Kun Yin, and Dongyu Wu. "The effect of actuator parameters on the performance of a liquid-jet hammer associated with its jet behavior." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 14 (2016): 2610–20. http://dx.doi.org/10.1177/0954406216685350.

Full text
Abstract:
Bi-stable fluidic amplifier containing no moving parts was used for switching fluid flow passing through it into an actuator in a liquid-jet hammer. So far, there has been no design basis for developing a liquid-jet hammer with high performance. To provide a guidance, this paper elaborates on the computational fluid dynamics simulation method for investigating the effect of actuator parameters on the performance of a liquid-jet hammer associated with its jet behavior. Given that couple mechanism exists between the flow field in the bi-stable fluidic amplifier and the actuator, dynamic mesh tec
APA, Harvard, Vancouver, ISO, and other styles
10

Guo, Wen Liang, and Zheng Guo. "Research on Jet Flame Extinguishing Process." Applied Mechanics and Materials 635-637 (September 2014): 80–83. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.80.

Full text
Abstract:
The flame used in combustion flame spraying is typical of a high-temperature free jet. The flow fields of free jets are multi-phase flows that couple the mass and heat transfer. This work develops an analytical method to describe free combustion spray jets. The aim of the research is to develop a fully understanding of the characteristics of free-flame jets. Experimental measurements were carried by a unique high-speed continuous CCD camera.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Coupage au jet"

1

Tazibt, Abou-el-Foutouh. "Étude théorique et expérimentale du processus d'accélération de particules abrasives dans un jet d'eau sous très haute pression : interaction avec le matériau à découper." Lille 1, 1995. http://www.theses.fr/1995LIL10003.

Full text
Abstract:
L'utilisation de la technologie du jet d'eau abrasif comme procédé de découpage à froid de matériaux tels que les composites et métaux, trouve des champs d'applications divers (aéronautique, industrie de l'automobile, génie civil). Bien que ce procédé soit utile, son support théorique est loin d'être maîtrisé quant à l'optimisation du grand nombre de paramètres de travail (pression hydraulique, débit d'abrasif, profondeur de coupe). La résolution de ce problème ne peut être effective que si l'on considère les facteurs qui conduisent principalement au phénomène de coupe. En effet, grâce à l'éne
APA, Harvard, Vancouver, ISO, and other styles
2

Weiss, Laurent. "Contribution au développement d'un procédé de découpe laser haute-énergie / jet d'eau haute-pression couplés : Application à la découpe d'alliages métalliques." Thesis, Université de Lorraine, 2013. http://www.theses.fr/2013LORR0112/document.

Full text
Abstract:
Depuis une dizaine d'années, la découpe par jet hybride où un jet d'eau fait office de guide d'onde pour le laser est utilisée avec succès dans le domaine de la microélectronique. Afin de développer cette technologie pour l'amener vers d'autres marchés tels que l'automobile, la chaudronnerie ou l'aéronautique, il est nécessaire d'augmenter la puissance des lasers et la pression du jet. A ces hauts niveaux énergétiques, les nouvelles interactions qui apparaissent entre la lumière et le fluide ainsi que les modifications du matériau engendrées par le jet hybride n'ont encore jamais été étudiées
APA, Harvard, Vancouver, ISO, and other styles
3

Xiao, Shenglei. "The investigation on mechanical behaviours of reinforcements and machining properties during manufacturing composites with complex shapes." Thesis, Lille 1, 2019. http://www.theses.fr/2019LIL1I056/document.

Full text
Abstract:
Les caractéristiques mécaniques et le comportement à la déformabilité des renforts sont des connaissances essentielles pour optimiser les procédés de fabrication des composites notamment de formes complexes. Par ailleurs, les propriétés d'usinage des composites déterminent également grandement la performance en service des pièces composites. Cette thèse est consacrée aux trois aspects des procédés de fabrication et d'usinage afin d'explorer les caractéristiques particulières des propriétés mécaniques et des comportements de déformabilité des tissus tressés, qui sont des renforts textiles prome
APA, Harvard, Vancouver, ISO, and other styles
4

Avrit, Antoine. "Étude du comportement d’ablation d’une structure solide par un jet liquide chaud." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0281.

Full text
Abstract:
Les études de sureté pour les réacteurs à neutrons rapides à caloporteur sodium (RNR-Na) ont donné lieu au développement de nouveaux systèmes de mitigation des accidents graves. Lors d'un scénario d'accident grave, une partie plus ou moins importante du cœur du réacteur entre en fusion, formant du corium. Ce corium doit être évacué du cœur afin d'éviter des problèmes de criticité. Des tubes de déchargement ("DCS-M-TT") ont donc été intégrés au design des RNR-Na, afin de transférer le cœur fondu vers un récupérateur de corium. En sortant des tubes de déchargement, le corium forme un jet et s'ét
APA, Harvard, Vancouver, ISO, and other styles
5

Assoum, Hassan. "Étude expérimentale des couplages entre la dynamique d’un jet qui heurte une plaque fendue et l’émission sonore générée." Thesis, La Rochelle, 2013. http://www.theses.fr/2013LAROS420/document.

Full text
Abstract:
Un jet heurtant une plaque fendue peut générer, dans certaines configurations, des nuisances sonores. En effet, l’interaction de l’écoulement et de l’obstacle au niveau de la fente, sous certaines conditions, donne naissance à une perturbation remontant l’écoulement et pouvant contrôler son détachement à sa naissance. La perturbation produite par cette boucle de rétroaction optimise le transfert d’énergie du champ aérodynamique du jet vers le champ acoustique rayonné. Afin d’appréhender la dynamique tourbillonnaire, d’analyser les couplages entre cette dernière et les émissions sonores générée
APA, Harvard, Vancouver, ISO, and other styles
6

Meslem, Amina. "Contribution à l'étude du couplage thermique entre un jet et un local climatisé." Lyon, INSA, 1997. http://www.theses.fr/1997ISAL0053.

Full text
Abstract:
Les travaux que nous présentons se structurent autour d'une analyse du jet issu d'un système de diffusion d'air et du couplage de celui-ci avec un local. La première partie est consacrée à une revue bibliographique sur les jets et les indices qui permettent de qualifier l'ambiance thermique des locaux climatisés. Le deuxième chapitre est réservé à la description du dispositif expérimental que nous avons développé au CETIAT de Villeurbanne. Le troisième chapitre nous conduit à une analyse détaillée du jet d'air froid issu du système de diffusion d'air et à une identification de ses caractéristi
APA, Harvard, Vancouver, ISO, and other styles
7

Radenac, Emmanuel. "Développement et validation d'une méthode numérique pour le couplage fluide / structure en aérothermique instationnaire." Toulouse, ENSAE, 2006. http://www.theses.fr/2006ESAE0018.

Full text
Abstract:
Une méthodologie destinée à la simulation des phénomènes aérothermiques instationnaires est développée, étudiée et validée dans ce travail. Elle consiste à coupler deux solveurs de dynamique des fluides et de thermique du solide. Elle est étudiée selon des critères de conservativité, précision et robustesse. Les paramètres du couplage (conditions limites d’interface fluide / solide et correction conservative) sont définis pour assurer la stabilité et un minimum de développements au sein des codes couplés. Une validation expérimentale est également effectuée sur une configuration proche des condi
APA, Harvard, Vancouver, ISO, and other styles
8

Mateu, armengol Jan. "Étude numérique des effets du couplage du rayonnement thermique aux jets turbulents libres de vapeur d'eau." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC052/document.

Full text
Abstract:
Le rayonnement thermique joue un rôle important dans un large éventail d'applications de génie thermique comprenant des écoulements turbulents. La motivation principale de cette thèse est le besoin croissant de précision et fiabilité dans les simulations numériques appliqué à ce domaine.Cette thèse s’intéresse tout particulièrement à la compréhension physique de l’impact du rayonnement thermique sur la dynamique des fluides et le transfert thermique, ainsi que de l’influence des fluctuations turbulentes sur le transfert radiatif dans les écoulements à couche de cisaillement.L'objectif de cette
APA, Harvard, Vancouver, ISO, and other styles
9

Berthiaux, Henri. "Modélisation du broyage fin dans un broyeur à jets d'air et à lit fluidisé : étude du couple broyeur-sélecteur." Vandoeuvre-les-Nancy, INPL, 1994. http://www.theses.fr/1994INPL154N.

Full text
Abstract:
Nous avons conçu des outils méthodologiques permettant de construire une modélisation globale des opérations de broyage et de broyage - classification, en prenant en compte les différents phénomènes mis en jeu: cinétique de broyage, écoulement des particules, classification. L’utilisation des formulations classiques du génie des procédés a permis d'introduire la notion de fraction résiduelle, représentative des performances de ces procédés. Des modèles complets ont été bâtis et validés à la fois dans le cas d'un broyeur à billes agité et dans celui d'un broyeur à jets opposés et à lit fluidisé
APA, Harvard, Vancouver, ISO, and other styles
10

Cammas, Jean-Pierre. "Circulation ageostrophique dans les systemes jet-fronts : une etude prospective du couplage dynamique haute et basse troposphere." Clermont-Ferrand 2, 1988. http://www.theses.fr/1988CLF21134.

Full text
Abstract:
Cette etude est une analyse experimentale des causes de forcage des circulations ageostrophiques dans les systemes jet-fronts, c'est-a-dire les systemes dynamiques constitues dans la haute troposphere par un maximum de courant-jet et un front d'altitude. Les circulations ageostrophiques associees a ces systemes sont a l'origine de processus encore mal connus tels que les processus de couplage dynamique entre la haute et la basse troposphere et les processus de foliation de tropopause donnant lieu a des echanges stratosphere-troposphere. L'analyse des termes de forcage des circulations ageostro
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Coupage au jet"

1

Zikmund, Rakowski, International Bureau of Strata Mechanics., and International Society of Water Jet Technology., eds. Geomechanics 93: Strata mechanics, numerical methods, water jet cutting, mechanical rock disintegration : proceedings of the international conference Geomechanics 93, Hradec, Ostrava, Czech Republic, 28-30 September 1993. Balkema, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

GEOMECHANICS 93WATER JET CUTTING. Taylor & Francis, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Reinstein, Mara, and Joey Bartolomeo. Brad & Jen: The Rise and Fall of Hollywood's Golden Couple. Wenner, 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Lavezzo, Kathy. The Accommodated Jew. Cornell University Press, 2017. http://dx.doi.org/10.7591/cornell/9781501703157.001.0001.

Full text
Abstract:
England during the Middle Ages was at the forefront of European antisemitism. It was in medieval Norwich that the notorious “blood libel” was first introduced when a resident accused the city's Jewish leaders of abducting and ritually murdering a local boy. This book rethinks the complex and contradictory relation between England's rejection of “the Jew” and the centrality of Jews to classic English literature. Drawing on literary, historical, and cartographic texts, the book charts an entangled Jewish imaginative presence in English culture. It tracks how English writers from Bede to John Mil
APA, Harvard, Vancouver, ISO, and other styles
5

Bayod, Myriam, Samy Bayod, and Ghislaine & Hoceine Bayod. Et l'Oued Se Jeta Dans la Scarpe: Page d'�ph�m�ride d'un Couple Islamo-Chr�tien. Independently Published, 2019.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Coupage au jet"

1

Mirabail, Solange. "Le couple." In La famille que je veux, quand je veux ? ERES, 2003. http://dx.doi.org/10.3917/eres.neiri.2003.02.0027.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Paricard-Pioux, Sophie. "La rupture volontaire du couple." In La famille que je veux, quand je veux ? ERES, 2003. http://dx.doi.org/10.3917/eres.neiri.2003.02.0105.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Parfitt, Tudor. "“The Truth of the Origination of the World and Mankind”." In Hybrid Hate. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190083335.003.0001.

Full text
Abstract:
The Judeo-Christian tradition maintains that humankind derives from the first couple in the Garden of Eden. St. Augustine even included the so-called monstrous races in the overall category of humanity. This consensus started to fragment in the sixteenth century with the work of Paracelsus and later Giordano Bruno, when alternative theories were put forward to account for human diversity. Their work was followed by others, including Julius Caesar Vanini, Isaac La Peyrère, John Atkins, Voltaire, François Bernier, Carl Linnaeus, Georges Cuvier, Edward Long, and Lord Kames. For most of them, the
APA, Harvard, Vancouver, ISO, and other styles
4

Larsen Mads Ohm and Vinter Brian. "Bohrium.rb – The Ruby Front End." In Concurrent Systems Engineering Series. IOS Press, 2019. https://doi.org/10.3233/978-1-61499-949-2-335.

Full text
Abstract:
The acceptance of Ruby in the scientific community lags a bit behind, partly because it is missing a good library for linear algebra and vector programming. It has a matrix class in its standard library, but its execution tends to be rather slow. Only a couple of actual scientific computing libraries like NumPy for Python exist for Ruby. In this paper we introduce a new library called Bohrium.rb. Bohrium.rb acts as a front end for the Bohrium framework, which generates and runs JIT-compiled OpenMP/OpenCL kernels. It currently supports Python/NumPy and C++, however as it is built of processes c
APA, Harvard, Vancouver, ISO, and other styles
5

McAlister, Elizabeth A. "“The Jew” in the Haitian Imagination: Pre-Modern Anti-Judaism in the Postmodern Caribbean." In Black Zion. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195112573.003.0011.

Full text
Abstract:
Abstract Each year in Haiti the Holy Week of Easter sets the stage for spiritual dramas of remembrance, performed in carnivalesque street theater throughout the country. While Catholics reenact the Passion of Jesus and enter with him into his tribulation and resurrection, some practitioners of the Afro-Haitian religion called Vodou organize enormous musical parades called Raras and take to the streets for the spiritual warfare that becomes possible when the angels and saints remove to the underworld, along with Jesus, on Good Friday. The cast of characters who have a hand in the week’s events
APA, Harvard, Vancouver, ISO, and other styles
6

Holman, Peter. "‘Waiters upon the Violin’ The Twenty-four Violins at Court." In Four and Twenty Fiddlers. Oxford University PressOxford, 1993. http://dx.doi.org/10.1093/oso/9780198161455.003.0013.

Full text
Abstract:
Abstract The traditional round of daily attendance or ‘waiting’ at Court ren,aif1ed the prime duty of royal musicians during the Restoration period. The chroniclers of court life took the presence of music so much for granted that they rarely bothered to mention it, but it is clear that the violinists, at least, were still required to attend Whitehall daily while the court was there. On 7 November 1666 twelve of them petitioned the king for arrears of wages, pointing out that they had ‘been com(m)anded to attend yo(u)r Ma(jes)tie and yo(u)r Royall Consort the Queene in all progresses, besides
APA, Harvard, Vancouver, ISO, and other styles
7

Paté, Arthur. "APPROCHE DE LA GUITARE ÉLECTRIQUE SOLID BODY PAR L’ACOUSTIQUE." In Quand la guitare [s']électrise! Sorbonne Université Presses, 2022. http://dx.doi.org/10.70551/lwts4713.

Full text
Abstract:
Le son perçu d’une guitare électrique solid body provient principalement du système électroacoustique rayonnant le signal de vibration des cordes. L’essentiel des travaux antérieurs en acoustique et traitement du signal audio s’est ainsi focalisé sur les amplificateurs, pédales d’effet, pickups, etc. Cependant, la vibration des cordes reste bel et bien à l’origine du son. L’article s’attache à démontrer que le son de la guitare électrique est conditionné par la qualité de la fabrication mécanique de l’instrument, même si celui-ci est dit électroacoustique. Par couplage mécanique, les propriété
APA, Harvard, Vancouver, ISO, and other styles
8

McCulloch, Margery Palmer. "Fête du Citron 1924–1926." In Edwin and Willa Muir. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/oso/9780192858047.003.0006.

Full text
Abstract:
Abstract 1924–1926.The Muirs meet old friends in London, and make contact with C. M. Grieve (‘Hugh MacDiarmid’) and his wife Peggy in Montrose. The poets respect each other and Edwin admires MacDiarmid’s achievement, but the families have little in common. Willa starts to translate Gerhard Hauptman and plans an essay on women—Women: An Inquiry (1925). Edwin’s reviews and essays are collected as Transition (1926). They find living in Montrose disappointing, and visit friends in the south when they can. Willa suffers a miscarriage in December 1925, and they depart for St Tropez in France. Edwin
APA, Harvard, Vancouver, ISO, and other styles
9

Farne, Hugo, Edward Norris-Cervetto, and James Warbrick-Smith. "Rectal bleeding." In Oxford Cases in Medicine and Surgery. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780198716228.003.0027.

Full text
Abstract:
As with all acute patients, always start by assessing ABCDE: airways, breathing, circulation, disability, and exposure. In a patient with acute gastrointestinal (GI) haemorrhage (whether upper or lower), assessing their circulation (i.e. haemodynamic status) is a priority. If there are clinical features to suggest haemodynamic instability—such as hypotension, tachycardia, cool peripheries, tachypnoea, or decreased consciousness—then the immediate priority is to resuscitate the patient before proceeding to a thorough history and examination. The differential diagnosis for rectal bleeding is sho
APA, Harvard, Vancouver, ISO, and other styles
10

Gratzer, Walter. "A copper or two." In Eurekas and euphorias. Oxford University PressNew York, NY, 2002. http://dx.doi.org/10.1093/oso/9780192804037.003.0159.

Full text
Abstract:
Abstract Rudolf Schoenheimer was a German biochemist of exceptional accomplishment. As a Jew, he lost his position in Germany before the Second World War and found refuge, along with many others in the same predicament, in the medical school of Columbia University in New York. There the Head of the Biochemistry Department, Hans Thatcher Clarke, assembled a brilliant, polyglot, and captious galère of Europeans. The years immediately after the war saw a succession of remarkable advances in the chemistry of physiological processes, thanks in large part to the advent of radioactive isotopes [149];
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Coupage au jet"

1

Roffey, R. "Method for Monitoring Corrosivity of Petroleum Products." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88092.

Full text
Abstract:
Abstract During long-term storage of petroleum products in rock caverns jet fuel has in a couple of cases become corrosive due to sulfate-reducing bacteria producing hydrogen sulfide in the bedwater. In order to monitor corrosivity of petroleum products a method has been developed based on using piezoelectric crystals (20 MHz) with silver electrodes. The method has been found to be more sensitive, when measuring silver corrosivity, than the standard silver strip test IP 227/73. The method has been evaluated and used to monitor the corrosivity of jet fuel stored in rock caverns. It has also bee
APA, Harvard, Vancouver, ISO, and other styles
2

Naboulsi, Samir (Sam). "Couple Diffusion-Thermo-Mechanical Model for Life Prediction of a Turbine Engine Blade." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-88461.

Full text
Abstract:
The failure of engines on jet aircrafts during the past few years has prompted the National Transportation Safety Board (NTSB) to issue an “urgent” recommendation to increase inspections of the engines on U.S. aircraft. Such uncontained engine failures are particularly dangerous, because flying engine parts could puncture fuel or hydraulic lines, damage flight surfaces or even penetrate the fuselage and injure passengers. At issue is older engines found on small number of jets, and the safety and economic impact damage and fracture risk can have on aircraft engines. For example, high-pressure
APA, Harvard, Vancouver, ISO, and other styles
3

Chiang, Hsiao-Wei D., and Hsin-Lung Li. "Jet Impingement and Forced Convection Cooling Experimental Study in Rotating Turbine Blades." In ASME Turbo Expo 2009: Power for Land, Sea, and Air. ASMEDC, 2009. http://dx.doi.org/10.1115/gt2009-59795.

Full text
Abstract:
Both jet impingement and forced convection are attractive cooling mechanisms and have been widely used in cooling of gas turbine blades. Convective heat transfer from impinging jets is known to yield high local and area averaged heat transfer coefficients. Impingement jets are of particular interest in the cooling of gas turbine components where advancement relies on the ability to dissipate extremely large heat loads. The current research is concerned with the measurement and comparison of both jet impingement and forced convection heat transfer in the Reynolds number range of 10,000 to 30,00
APA, Harvard, Vancouver, ISO, and other styles
4

Ugrina, Sandra, and Alison Flatau. "Analytical and Experimental Investigation of Different Synthetic Jet Actuator Configurations." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-62485.

Full text
Abstract:
The ultimate goal of this project is to actively control the flow over a micro air vehicle using smart materials. MAVs are a new type of aircraft operating at Reynolds numbers of about 50,000 that are one to two orders of magnitude lower than encountered in larger aircraft. The intention is to implement smart structures and couple them with fluids to improve the deteriorated aerodynamics of MAVs and help improve efficiency, stability and maneuverability of such vehicles. The actuators used in this work for artificially controlling the boundary layer are piezoelectrically driven synthetic jets.
APA, Harvard, Vancouver, ISO, and other styles
5

Reich, Alton J., and Paul J. Dionne. "Complex Fluid-Structure Interaction in Ink Jet Printer Mechanisms." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-2126.

Full text
Abstract:
Abstract Recent advances in the ability to couple fluid and structural analyses have made it possible to simulate the behavior of increasingly complex physical systems. This paper focuses on the simulation of the fluid-structure interaction within a typical ink jet printer. The simulations demonstrate several different methods that may be used to eject a droplet of ink from a reservoir. In each case a membrane at the bottom of the ink reservoir is deformed. The movement of the membrane imparts the momentum necessary for droplet ejection to the fluid. The simulations were performed with a comme
APA, Harvard, Vancouver, ISO, and other styles
6

Le, Jiang, Liu Zhenxia, Lyu Yaguo, and Zhu Pengfei. "Numerical Study on Flow Characteristics of Liquid Jet in Airflows." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-91076.

Full text
Abstract:
Abstract The interaction between the fuel jet, the oil jet and the airflow is involved in the afterburner (or ramjet combustion chamber) and the lubricating oil system of the aero-engine respectively. The latter mainly studies the penetration depth of the oil jet into the airflow, the oil jet breakup position and so on. In the under-race lubrication system, the oil jet is deflected due to the high-speed rotation of the oil scoop and some droplets, ligaments are separated. The deflection of the oil jet and the splash of droplets may affect the oil capture efficiency of the under-race lubricatio
APA, Harvard, Vancouver, ISO, and other styles
7

Teymouri, R. M. B., and G. Ahmadi. "Numerical investigation of the jet formation through the oscillation of a bubble between a couple of parallel walls." In AFM 2010. WIT Press, 2010. http://dx.doi.org/10.2495/afm100171.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Arthurs, David, and Samir Ziada. "The Effect of Fluid-Resonant Coupling in High-Speed Impinging Planar Jet Flows." In ASME 2013 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/pvp2013-97141.

Full text
Abstract:
This study investigates the effect of fluid-resonant coupling, i.e. the coupling between unstable modes of an impinging jet with resonant acoustic modes occurring between the nozzle and the impingement surface, on the self-excited oscillations of high-speed impinging planar jet. In order to investigate this phenomenon, a series of experiments have been performed using a high-speed impinging planar jet with varying nozzle thickness (h) and impingement distance (xo), for a single Mach number in the compressible flow regime. The test results reveal that the jet oscillation is controlled by a flui
APA, Harvard, Vancouver, ISO, and other styles
9

De Santiago, Oscar, and Luis San Andrés. "Dynamic Response of a Rotor-Integral Squeeze Film Damper to Couple Imbalances." In ASME Turbo Expo 2000: Power for Land, Sea, and Air. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/2000-gt-0388.

Full text
Abstract:
Squeeze film dampers (SFDs) are used in high speed rotating machinery to reduce rotor vibration amplitudes and to isolate transmitted loads through the bearing support structures. SFDs are also effective means to ameliorate destructive subsynchronous vibrations excited by hydrodynamic bearings, seals, impellers and other unknown sources. Modern jet engines demand lighter and flexible structures with compact components to obtain the largest power to weight ratios. This current trend makes evident rotordynamic phenomena that must be adequately addressed by dissipation elements such as SFDs. Inte
APA, Harvard, Vancouver, ISO, and other styles
10

Frederick, Mark, Joshua Dudash, Jacqueline O’Connor, Kiran Manoharan, Santosh Hemchandra, and Brian Brubaker. "Impact of PVC Dynamics on Shear Layer Response in a Swirling Jet." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-64691.

Full text
Abstract:
Combustion instability, or the coupling between flame heat release rate oscillations and combustor acoustics, is a significant issue in the operation of gas turbine combustors. This coupling is often driven by oscillations in the flow field. Shear layer roll-up, in particular, has been shown to drive longitudinal combustion instability in a number of systems, including both laboratory and industrial combustors. One method for suppressing combustion instability would be to suppress the receptivity of the shear layer to acoustic oscillations, severing the coupling mechanism between the acoustics
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!