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Статті в журналах з теми "Gain en puissance maximal"
Dekerle, Jeanne, Bertrand Baron, L. Dupont, Jacques Vanvelcenaher, H. Robin, and P. Pelayo. "Puissance critique, seuils ventilatoires et état stable maximal de la lactatémie." Les Cahiers de l'INSEP 33, no. 1 (2002): 203–13. http://dx.doi.org/10.3406/insep.2002.1698.
Повний текст джерелаRÖSCH, FELIX. "Pouvoir,puissance, and politics: Hans Morgenthau's dualistic concept of power?" Review of International Studies 40, no. 2 (April 23, 2013): 349–65. http://dx.doi.org/10.1017/s0260210513000065.
Повний текст джерелаArsénio, Diogo, and Nader Masmoudi. "Maximal gain of regularity in velocity averaging lemmas." Analysis & PDE 12, no. 2 (January 1, 2019): 333–88. http://dx.doi.org/10.2140/apde.2019.12.333.
Повний текст джерелаGeiselhart, Roman, and Fabian Wirth. "On Maximal Gains Guaranteeing a Small-Gain Condition." SIAM Journal on Control and Optimization 53, no. 1 (January 2015): 262–86. http://dx.doi.org/10.1137/130924755.
Повний текст джерелаFrolov, Andrei N. "On asymptotics of the maximal gain without losses." Statistics & Probability Letters 63, no. 1 (May 2003): 13–23. http://dx.doi.org/10.1016/s0167-7152(02)00420-0.
Повний текст джерелаPan, Yijin, Cunhua Pan, Zhaohui Yang, Ming Chen, and Jiangzhou Wang. "A Caching Strategy Towards Maximal D2D Assisted Offloading Gain." IEEE Transactions on Mobile Computing 19, no. 11 (November 1, 2020): 2489–504. http://dx.doi.org/10.1109/tmc.2019.2933843.
Повний текст джерелаFrolov, Andrei, Alexander Martikainen, and Josef Steinebach. "Strong laws for the maximal gain over increasing runs." Statistics & Probability Letters 50, no. 3 (November 2000): 305–12. http://dx.doi.org/10.1016/s0167-7152(00)00119-x.
Повний текст джерелаRocher, P., and C. Cavelier. "Production d'éléments orbitaux de comètes sur PC." Symposium - International Astronomical Union 172 (1996): 357–60. http://dx.doi.org/10.1017/s0074180900127688.
Повний текст джерелаPiskorski, Ł., L. Frasunkiewicz, and R. P. Sarzała. "Comparative analysis of GaAs- and GaSb-based active regions emitting in the mid-infrared wavelength range." Bulletin of the Polish Academy of Sciences Technical Sciences 63, no. 3 (September 1, 2015): 597–603. http://dx.doi.org/10.1515/bpasts-2015-0070.
Повний текст джерелаRichard, Lenaïg, Pierre-Philippe Blanc, Vincent Rigolet, Sadasivam J. Kaushik, and Inge Geurden. "Maintenance and growth requirements for nitrogen, lysine and methionine and their utilisation efficiencies in juvenile black tiger shrimp, Penaeus monodon, using a factorial approach." British Journal of Nutrition 103, no. 7 (November 30, 2009): 984–95. http://dx.doi.org/10.1017/s0007114509992844.
Повний текст джерелаДисертації з теми "Gain en puissance maximal"
Ndoye, Mamadou Mustapha. "Contribution à l'étude du transistor bipolaire hyperfréquence sur puce de silicium." Bordeaux 1, 1997. http://www.theses.fr/1997BOR10682.
Повний текст джерелаThis work is a contribution to the study of the high-speed bipolar transistor on silicon chip. First, it presents two original methods allowing to reduce the Base-Collector extrinsic Capacitance, to increase the Base-Collector breakdown voltage, to increase the Voltage Early VA, to increase the maximum power gain Gpmax and to increase the transition frequency FT. Then, it presents a new transistor, hybrid structure between the vertical NPN and the lateral NPN, named bipolar-CLEV (lateral collector-vertical emitter). This study can be generalized to other high speed transistor technologies such as III-V substrate transistors or heterojunction transistors
Ndoye, Mamadou Moustapha. "Contribution à l'étude du transistor bipolaire hyperfréquence sur puce de silicium." Bordeaux 1, 1997. http://www.theses.fr/1997BOR10688.
Повний текст джерелаThis work is a contribution to the study of the high-speed bipolar transistor on silicon chip. First, it presents two original methods allowing to reduce the Base-Collector extrinsic Capacitance, to increase the Base-Collector breakdown voltage, to increase the Voltage Early VA, to increase the maximum power gain Gpmax and to increase the transition frequency FT. Then, it presents a new transistor, hybrid structure between the vertical NPN and the lateral NPN, named bipolar-CLEV (lateral collector-vertical emitter). This study can be generalized to other high speed transistor technologies such as III-V substrate transistors or heterojunction transistors
Lopez, Santos Oswaldo. "Contribution to the DC-AC conversion in photovoltaic systems : Module oriented converters." Thesis, Toulouse, INSA, 2015. http://www.theses.fr/2015ISAT0001/document.
Повний текст джерелаThese last years, a growing interest in power electronic systems has been motivated by the emergence of distributed renewable energy resources and their interconnection with the grid. In this context, the need of low power topologies fed by a few photovoltaic modules avoiding the use of transformers opens the study of special converters and the associated control strategies ensuring stability, reliability and high efficiency. A resulted generic device known in the commercial and scientific literature as “microinverter” or “module integrated converter” performs a plug and play product together with the PV module called an “AC module”.This work is devoted to the study of a transformer-less single-phase double-stage grid-connected microinverter. The proposed topology has a non-isolated high-gain boost type DC-DC converter and a non-isolated buck type DC-AC converter connected in cascade through a DC bus. The DC-DC converter permanently extracts the maximum power of the PV module ensuring at the same time a good performance coping with power changes introduced by the change in the environmental conditions. The DC-AC stage injects the power extracted by the DC-DC stage into the grid ensuring a high level of power quality. The research efforts focus on the involved control functions based on the sliding mode control theory, which leads to a simple implementation with a comprehensive theoretical description validated through simulation and experimental results.After giving the state-of-the-art in the first chapter, the manuscript is divided into four chapters, which are dedicated to the Maximum Power Point Tracking (MPPT), the DC-DC stage and its control, the DC-AC stage and its control and the complete microinverter. A new Extremum Seeking Control (ESC) MPPT algorithm is proposed. The single-switch quadratic boost converter is studied operating as a Loss-Free-Resistor (LFR) obtaining a high DC output voltage level with a safe operation. The full-bridge converter is controlled as a Power Source Inverter (PSI) using a simple sliding-mode based tracking law, regulating the voltage of the DC bus and then ensuring a high power quality level in the grid connection. Finally, the three building blocks are merged to obtain a sliding mode controlled microinverter constituting the main result and contribution of the work
Renard, William. "Étude et réalisation de sources lasers fibrées impulsionnelles de forte puissance autour de 2 µm." Phd thesis, Ecole Polytechnique X, 2012. http://pastel.archives-ouvertes.fr/pastel-00764940.
Повний текст джерелаRenard, William Alain Guillaume. "Étude et réalisation de sources lasers fibrées impulsionnelles de forte puissance autour de 2 µm." Palaiseau, Ecole polytechnique, 2012. http://www.theses.fr/2012EPXX0067.
Повний текст джерелаIn this work, we design and make high peak power pulsed fiber lasers operating around 2 µm. The first part of this work is dedicated to the study of gain-switched thulium-doped fiber laser which emits nanosecond pulses. A fiber oscillator was built and characterized. It emits pulses with 10 ns duration, 16 µJ energy and 1,6 kW peak power. Pulses were amplified in a large core fiber to reach 150 µJ energy and 13 kW peak power per pulses. The second part of this report is dedicated to the study of mode-locked thulium-doped fiber laser. An all-fiber oscillator in solitonic regime was built and characterized. It emits solitons of 4,5 ps duration and 62 pJ energy. Pulses were also amplified to achieve more than 8 kW peak power and 30 nJ energy without significant nonlinear distortion. We discuss the limitations of pulses amplification in the nanosecond and picosecond regimes with numerical simulation
Ouerghemmi, Ezzeddine. "Étude physique des limites en puissance des lasers à cascade quantique." Phd thesis, Ecole Polytechnique X, 2011. http://pastel.archives-ouvertes.fr/pastel-00605931.
Повний текст джерелаOuerghemmi, Ezzedine. "Étude physique des limites en puissance des lasers à cascade quantique." Palaiseau, Ecole polytechnique, 2011. http://pastel.archives-ouvertes.fr/docs/00/60/59/31/PDF/manuscrit_ezzeddine_Ouerghemmi.pdf.
Повний текст джерелаThis thesis work is devoted to the theoretical and experimental study of the limiting factors of quantum cascade lasers (QCL) output power. It exposes a global modeling of their electro-optical properties. Laser operation is described in particular by including the electronic structure, non-radiative electron scattering mechanisms and the electron-photon coupling along the laser cavity. This model allowed us to successfully reproduce all the characteristics (current and optical power as a function of the applied voltage) of a QCL over the whole range of operating temperatures. This model was used to calculate the electron temperature in QCL. It showed that scattering by LO phonons is the only mechanism by which the gas of electron can transfer energy towards the lattice. Elastic scattering mechanisms are sources of energy for the electron gas. Two physical parameters allow to fully describe the electron temperature in the device: the electronic thermal resistance of the heterostructure and the temperature current coupling factor. Taking into account the electron-photon coupling shows that it may influence the electronic distribution over energy levels. Therefore, the gain of the active zone of the laser is reduced in the presence of this coupling. This effect, called gain saturation, plays an important role on the output performances of QCL. Minimizing this effect can increase the maximum power output of the laser by a factor of two. This study allowed us to propose new design rules of active regions to improve the QCL output performances. The experimental characterization of some of these structures has validated the approach we have followed towards performances improvement
Jaafar, Hamdi. "Approche intégrative de détermination de la puissance maximale sur ergocycle lors de sprints de courte durée." Thesis, Paris 10, 2015. http://www.theses.fr/2015PA100175/document.
Повний текст джерелаThe aim of the present work was to study, using an integrative approach, the effects of intrinsic and extrinsic factors that influence the mechanical and neuromuscular performances during sprint exercises on a cycle ergometer. The first study examined the effect of exercise and gender on the reliability of the mechanical measurements from the force-velocity tests. The results showed that the reliability of the force-velocity test was higher in men and lower limbs compared to women and upper limbs, respectively. The second study investigated the effect of two loads (8.7 and 11% of body mass, BM) on the reproducibility of mechanical power indices during a Wingate test. The results showed comparable reliability between the two loads. However, power output was significantly higher at 11% BM. The third study compared power indices computed from the force-velocity and Wingate tests among two groups of male subjects with different physical fitness. The results showed that the Wingate tests performed against non-optimal loads (8.7% BM) underestimated maximal power especially in powerful subjects. The fourth study investigated the effect of the emotional context on neuromuscular performance during repeated cycling sprints. The results revealed a positive effect of pleasant context on neuromuscular performance compared to the unpleasant context. These results suggest that extrinsic motivation affects via the emotional valence (pleasant-unpleasant) the performance during all-out exercises
Attiogbe, Amévi Elvis. "Facteurs d'influence de la relation détente verticale - puissance maximale musculaire des membres inférieurs." Thesis, Paris 10, 2019. http://www.theses.fr/2019PA100170.
Повний текст джерелаThe present thesis fits on the border of muscle physiology and biomechanics. Three studies investigated the factors influencing the relationship between vertical jump (DV) and maximal power out on cycle ergometer (Pmax). Study A, conducted on 106 participants from two groups (volleyball players, VB, and physical education students (PES) without specific training in jumping or cycling exercises) including 67 Caucasian (C) 39 West African (WA) origins, showed significant effects of sports practice (VB>PES) and enthnicity (E) (WA>C) on countermovement jump with arm swing (CMJA). However, the difference in Pmax was not significant between groups. The CMJA-Pmax relationships were different in C and WA (P=0.003). Therefore, CMJA predicted from Pmax would be underestimated in WA. The same difference was observed for CMJA-PmaxArms relationship. Study B, conducted on 84 participants, showed E significant difference (WA>C) in DV on a force platform in squat jump (SJ), countermovement jump (CMJ), CMJA, CMJA-CMJ, CMJA/CMJ. The effect sizes of E were large for CMJA, CMJA-CMJ, CMJA/CMJ and medium for CMJ and SJ. E effect of countermovement jump (CMJ-SJ) was not significant. In study C, the effects of anthropometric factors [body height (BH), sitting height (SH), foot length (FL), leg length (LL), Body Weight (BW), BMI, Body fat (BF), BF/BW and Skelic (Sk=LL/SH) or Cormic (Co=SH/BH) indices], and E (C vs WA) on SJ, CMJ and CMJA)] have been measured on a force platform in 55 PES [32 Caucasians (group C) and 23 West-Africans (group WA)]. Only SH, Sk and Co were significantly different in C and WA. All DV performances were higher WA The ethnic difference in SH could partly explain the higher DV values in WA
Dietze, Kai. "Analysis of a Two-Branch Maximal Ratio and Selection Diversity System with Unequal Branch Powers and Correlated Inputs for a Rayleigh Fading Channel." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/32412.
Повний текст джерелаMaster of Science
Книги з теми "Gain en puissance maximal"
Union, International Telecommunication. Troisième édition de l'Annexe 1 à l'Accord régional (Genève, 1975): Contenant, le plan d'assignations de fréquence pour les stations de radiodiffusion à ondes kilométriques et hectométriques (régions 1 et 3), l'appendice au plan, canaux pour émetteurs de faible puissance, l'appendice 2 au plan, gain de l'antenne (en dB), janvier 1987. [Genève]: L'Union, 1987.
Знайти повний текст джерелаCloeren, Marianne, and Stephen Colameco. Preventing Avoidable Work Disability (DRAFT). Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190265366.003.0022.
Повний текст джерелаЧастини книг з теми "Gain en puissance maximal"
Beaudry-Godin, Mélissa, Robert Bourbeau, and Bertrand Desjardins. "Extreme Longevity in Quebec: Factors and Characteristics." In Demographic Research Monographs, 169–90. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-49970-9_12.
Повний текст джерелаBLOT, Jean-Pierre. "Paramètres de caractérisation d’une antenne." In Ondes électromagnétiques 2, 135–51. ISTE Group, 2020. http://dx.doi.org/10.51926/iste.9007.ch4.
Повний текст джерелаCamici, Paolo G., and Ornella Rimoldi. "Imaging of microvascular disease." In The ESC Textbook of Cardiovascular Imaging, edited by José Luis Zamorano, Jeroen J. Bax, Juhani Knuuti, Patrizio Lancellotti, Fausto J. Pinto, Bogdan A. Popescu, and Udo Sechtem, 481–94. Oxford University Press, 2021. http://dx.doi.org/10.1093/med/9780198849353.003.0033.
Повний текст джерелаSchmajuk, Néstor A., and Munir G. Kutlu. "An Associative Approach to Additivity and Maximality Effects on Blocking." In Computational Neuroscience for Advancing Artificial Intelligence, 57–80. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-021-1.ch004.
Повний текст джерелаJamaladdeen, Rawaa, Bruno Coudour, Fabienne Dédaldéchamp, Laurent Lemée, Jean-Pierre Garo, and Hui-Ying Wang. "Influence of combined hydric and thermal stresses on Rosmarinus officinalis and Cistus albidus." In Advances in Forest Fire Research 2022, 1665–70. Imprensa da Universidade de Coimbra, 2022. http://dx.doi.org/10.14195/978-989-26-2298-9_255.
Повний текст джерелаТези доповідей конференцій з теми "Gain en puissance maximal"
Mao, Qi, Yong Xu, Jianqi Chen, Jie Chen, and Tryphon Georgiou. "Maximal Gain and Phase Margins Attainable by PID Control." In 2021 60th IEEE Conference on Decision and Control (CDC). IEEE, 2021. http://dx.doi.org/10.1109/cdc45484.2021.9683241.
Повний текст джерелаArnavaz, Kasra, Aasa Feragen, Oswin Krause, and Marco Loog. "Bayesian Active Learning for Maximal Information Gain on Model Parameters." In 2020 25th International Conference on Pattern Recognition (ICPR). IEEE, 2021. http://dx.doi.org/10.1109/icpr48806.2021.9411962.
Повний текст джерелаCarmel, David, Eitan Farchi, Yael Petruschka, and Aya Soffer. "Automatic query wefinement using lexical affinities with maximal information gain." In the 25th annual international ACM SIGIR conference. New York, New York, USA: ACM Press, 2002. http://dx.doi.org/10.1145/564376.564427.
Повний текст джерелаRenner, Hagen, and Michael Krause. "Maximal total gain of non-tapered silicon-on-insulator Raman amplifiers." In Optical Amplifiers and Their Applications. Washington, D.C.: OSA, 2006. http://dx.doi.org/10.1364/oaa.2006.omd2.
Повний текст джерелаde Souza, Rausley Adriano Amaral, and Michel Daoud Yacoub. "Maximal-Ratio and Equal-Gain Combining in Hoyt (Nakagami-q) Fading." In 2009 IEEE 69th Vehicular Technology Conference Spring. IEEE, 2009. http://dx.doi.org/10.1109/vetecs.2009.5073664.
Повний текст джерелаFraidenraich, Gustavo, José Cândido S. Santos Filho, and Michel D. Yacoub. "Second-Order Statistics of Maximal-Ratio and Equal-Gain Combining in Hoyt Fading." In XXI Simpósio Brasileiro de Telecomunicações. Sociedade Brasileira de Telecomunicações, 2004. http://dx.doi.org/10.14209/sbrt.2004.238.
Повний текст джерелаBarott, William C. "Effect of beamforming errors on the efficacy of maximal ratio and equal gain combining." In SOUTHEASTCON 2014. IEEE, 2014. http://dx.doi.org/10.1109/secon.2014.6950738.
Повний текст джерелаRenner, Hagen, Michael Krause, and Ernst Brinkmeyer. "Maximal gain and optimal taper design for Raman amplifiers in silicon-on-insulator waveguides." In Integrated Photonics Research and Applications. Washington, D.C.: OSA, 2005. http://dx.doi.org/10.1364/ipra.2005.jwa3.
Повний текст джерелаBuyko, S. A., Y. V. Dolgopolov, A. M. Dudov, V. A. Eroshenko, G. G. Kochemasov, S. M. Kulikov, V. N. Novikov, et al. "SBS gain measurement in xenon near critical point." In The European Conference on Lasers and Electro-Optics. Washington, D.C.: Optica Publishing Group, 1998. http://dx.doi.org/10.1364/cleo_europe.1998.cthh62.
Повний текст джерелаDa Costa, Daniel, Michel Yacoub, and Gustavo Fraidenraich. "Second-Order Statistics of Equal-Gain and Maximal-Ratio Combining for the ¿ ¿ ¿ (Generalized Gamma) Fading Distribution." In 2006 IEEE Ninth International Symposium on Spread Spectrum Techniques and Applications. IEEE, 2006. http://dx.doi.org/10.1109/isssta.2006.311791.
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