Auswahl der wissenschaftlichen Literatur zum Thema „GHz régime“
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Zeitschriftenartikel zum Thema "GHz régime"
Dalle, Christophe, Georges Lleti, Didier Goral und Paul-Alain Rolland. „Modélisation et réalisation d’oscillateurs ATT de forte puissance dans la fenêtre des 94 GHz en régime d’oscillations continues“. Annals of Telecommunications 43, Nr. 5-6 (Mai 1988): 287–98. http://dx.doi.org/10.1007/bf02995090.
Der volle Inhalt der QuelleJacquot, B., und M. Pontonnier. „La source CAPRICE 10 GHz en mode harmonique 2(ωHF − ωCe) = 0 production d'ions d'éléments métalliques en régime continu“. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 295, Nr. 1-2 (Oktober 1990): 5–11. http://dx.doi.org/10.1016/0168-9002(90)90415-3.
Der volle Inhalt der QuelleDOURMAD, J. Y., J. Y. DOURMAD, C. RIGOLOT und C. JONDREVILLE. „Influence de la nutrition sur l’excrétion d’azote, de phosphore, de cuivre et de zinc des porcs, et sur les émissions d’ammoniac, de gaz à effet de serre et d’odeurs“. INRAE Productions Animales 22, Nr. 1 (14.02.2009): 41–48. http://dx.doi.org/10.20870/productions-animales.2009.22.1.3332.
Der volle Inhalt der QuelleHarouadi, Farid, und Salim Boulahrouz. „Etude et Analyse de la Combustion Turbulente dans un Moteur Alimenté en Gaz Naturel“. Journal of Renewable Energies 3, Nr. 2 (31.12.2000): 93–103. http://dx.doi.org/10.54966/jreen.v3i2.914.
Der volle Inhalt der QuelleMinetti, R., J. Vandooren und P. Van Tiggelen. „Description d'un nouveau brûleur compact. Fonctionnement en régime de gaz prémélangés“. Revue de l'Institut Français du Pétrole 43, Nr. 5 (September 1988): 673–92. http://dx.doi.org/10.2516/ogst:1988042.
Der volle Inhalt der QuelleDeroche, Benjamin, und Michael Rinn. „L’art de l’irreprésentable“. Protée 37, Nr. 2 (30.10.2009): 91–96. http://dx.doi.org/10.7202/038458ar.
Der volle Inhalt der QuelleGodard, Olivier. „Quel régime international pour les émissions de gaz à effet de serre ?“ Natures Sciences Sociétés 1, Nr. 1 (Januar 1993): 25–33. http://dx.doi.org/10.1051/nss/19930101025.
Der volle Inhalt der QuelleOgunbosoye, D. O., T. O. Abegunde, T. O. Binuomote und K. B. Salau. „Nutritional evaluation and growth response of West African dwarf (WAD) sheep fed varying levels of soybean cheese waste diets“. Nigerian Journal of Animal Production 49, Nr. 4 (10.02.2023): 166–75. http://dx.doi.org/10.51791/njap.v49i4.3713.
Der volle Inhalt der QuelleAryanpour, G., F. Arianpour, M. H. Abbasi und A. Ershadi. „Simulation de la diffusion des gaz dans les capillaires en régime de Knudsen“. Oil & Gas Science and Technology - Revue de l'IFP 62, Nr. 5 (September 2007): 673–81. http://dx.doi.org/10.2516/ogst:2007064.
Der volle Inhalt der QuelleVlad, Gheorghe, Georges Le Palec und Philippe Bournot. „Modélisation de la décharge luminescente dans un écoulement de gaz en régime turbulent“. Revue Générale de Thermique 37, Nr. 6 (Juni 1998): 500–513. http://dx.doi.org/10.1016/s0035-3159(98)80066-4.
Der volle Inhalt der QuelleDissertationen zum Thema "GHz régime"
Thomas, Catherine. „Mesures du gradient accélérateur maximum dans des cavités supraconductrices en régime impulsionnel à 3 GHz“. Phd thesis, Université Paris Sud - Paris XI, 2000. http://tel.archives-ouvertes.fr/tel-00006564.
Der volle Inhalt der QuelleBonamis, Guillaume. „Conception et réalisation d’une source laser femtoseconde GHz et applications au régime d’ablation très haute cadence“. Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0293.
Der volle Inhalt der QuelleThese last two decades, femtosecond laser technology has gained considerably in terms of maturity and reliability. These laser pulses enable materials micro-machining with minimal thermal collateral effects, thus allowing to work with an outstanding precision, even on materials highly sensitive to temperature. Nevertheless, the penetration of femtosecond processing into the industrial manufacturing market is limited due to an insufficient productivity. The current strategies consist of optimizing the processes on the one hand and increasing the average power of these laser sources on the other hand. Another way suggests increasing the femtosecond ablation process efficiency by delivering bursts of low-energy pulses instead of one highly energetic pulse.Recent works showed that using bursts of pulses at repetition rates on the order of GHz allows to reach ablation rates one order of magnitude higher than the ones obtained by standard femtosecond pulse machining. Nevertheless, these promising results are controversial, as other works point out levels of efficiency lower than expected, added to collateral thermal damages on the machined materials. A thorough study of this new ablation regime is thus necessary to ensure that its interest is justified on the one hand, and to point out the optimal configurations of its use on the other hand. Several optical oscillators delivering bursts of femtosecond pulses at GHz-level repetition rates and laser amplifiers have been developed to this purpose. These innovating laser systems benefit from great flexibility in terms of reachable laser parameters (pulse repetition rate and energy, number of pulses per burst notably). This flexibility allowed us to perform a thorough study of the GHz-ablation regime by numerous machining experiments on several materials of industrial interest. This study points out the influence of the different laser parameters and thus to explain the variety of results related to GHz-ablation and to guide the use of this regime under favorable conditions to reach an efficient and high-quality machining
Lai, Ngoc Diep. „Etude théorique et expérimentale des lasers solides bi-fréquences dans les domaines GHz à THz, en régime continu ou impulsionnel“. Phd thesis, Rennes 1, 2003. https://tel.archives-ouvertes.fr/tel-00410958.
Der volle Inhalt der QuelleBelloni, Valeria. „Spatial and temporal pulse shaping for ultrafast laser materials processing“. Electronic Thesis or Diss., Bourgogne Franche-Comté, 2023. http://www.theses.fr/2023UBFCD055.
Der volle Inhalt der QuelleUltrafast laser processing has gained significant attention in industrial applications due to its ability to achieve precise and high-quality material ablation. However, laser constraints such as pulse energy and repetition rates have limited the throughput of ultrafast laser processes, especially in industrial settings.In this framework, customizing the spatial and temporal profiles of laser beams can enhance the interaction between the laser and the material. Beam shaping techniques play a crucial role in optimizing the performance of ultrafast laser materials processing and reaching previously inaccessible regimes. In parallel, ultrafast lasers operating at GHz repetition rates deliver a significantly higher number of pulses per unit of time compared to conventional laser sources. Splitting a single pulse into several sub-pulses with high repetition rate seems to be an effective method to increase the ablation rate in laser processing.This thesis explores the possibility of ultrafast laser systems with GHz repetition rates and advanced beam shaping techniques to improve ultrafast laser processing. The Bessel beam is particularly beneficial in processing transparent materials thanks to its robustness to non-linear distortions. A high-order Bessel beam is used in this thesis to generate, for the first time, positive nanopillars with a single laser pulse across the surface of sapphire. In addition, a new setup for highly focused Bessel beams has been developed to investigate new opportunities in silicon processing. Finally, a GHz repetition laser source, in a new regime up to 15 GHz, has been used to process silicon. Promising results were obtained with this very high repetition rate with a Gaussian beam and top-hat beam shaping
Beaussart, Stéphane. „Contribution à l'étude du fonctionnement et à l'optimisation des oscillateurs A. T. T. Au silicium de forte puissance en régime d'impulsions courtes à 94 GHz“. Lille 1, 1997. http://www.theses.fr/1997LIL10202.
Der volle Inhalt der QuelleRichard, Edwis. „Etude du bruit de fond basse-fréquence de 1 Hz à 100 kHz et haute-fréquence de 50 MHz à 4 GHz en régime de porteurs chauds dans des structures n+nn+AlxGa1-xAs“. Montpellier 2, 1995. http://www.theses.fr/1995MON20157.
Der volle Inhalt der QuelleEwart, Timothée. „Etude des écoulements gazeux isothermes en microconduits : du régime hydrodynamiques au proche régime moléculaire libre“. Aix-Marseille 1, 2007. http://www.theses.fr/2007AIX11053.
Der volle Inhalt der QuelleThis Ph. D work involves experimental, numerical and theoretical studies on the isothermal ows in the microtubes and the microchannels using different gases. The experimental part is devoted to the measurements of the mass ow rates. It is completed by a numerical simulation based on the Monte Carlo method, that gives the velocity profile in a section of the microdivice. The results were compared to the following approaches : the NS equations in the slip regime and thevarious kinetic approaches (linearized Boltzmann equation, BGK) in the transitional and the free molecular regime. Comparing our experiments to these numerical or theoretical approaches , we determine the field of validity of the slip regime (using first and second order boundary conditions), the values of the tangential accommodation coefficient, the values of the coefficient of second orderand its parameter dependences. Finally, we analyze the asymptotic behavior of the mass ow rate in the free molecular regime
Aufrère, Loi͏̈c (19. „Etude de l'interaction gaz-paroi en régime hypersonique“. Aix-Marseille 1, 2000. http://www.theses.fr/2000AIX11027.
Der volle Inhalt der QuelleLusseyran, François. „Caractéristiques cellulaires du régime à poches en écoulement gaz-liquide co-courant vertical, transition vers le régime déstructuré“. Vandoeuvre-les-Nancy, INPL, 1990. http://docnum.univ-lorraine.fr/public/INPL_T_1990_LUSSEYRAN_F.pdf.
Der volle Inhalt der QuellePlagnol, Vincent. „Modélisation de la colonne positive d'une décharge mercure-argon basse pression : analyse du régime stationnaire et étude de l'influence de la fréquence d'alimemtation en régime sinusoi͏̈dal“. Toulouse 3, 1992. http://www.theses.fr/1992TOU30036.
Der volle Inhalt der QuelleBuchteile zum Thema "GHz régime"
DIELE-VIEGAS, Luisa Maria. „Biogéographie et changement climatique“. In La biogéographie, 327–44. ISTE Group, 2022. http://dx.doi.org/10.51926/iste.9060.ch12.
Der volle Inhalt der QuelleFernandez, Alexandre. „Destins des régies municipales de gaz et d’électricité en France“. In État et énergie XIXe-XXe siècle, 321–46. Institut de la gestion publique et du développement économique, 2009. http://dx.doi.org/10.4000/books.igpde.6676.
Der volle Inhalt der QuelleBerichte der Organisationen zum Thema "GHz régime"
Aznar, J. C., und M. Malo. Échantillonnage des gaz de sol dans la région de St. Édouard, sud du Québec, Canada. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2014. http://dx.doi.org/10.4095/295539.
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