Academic literature on the topic 'Efficacité énergétique et spéctrale'
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Journal articles on the topic "Efficacité énergétique et spéctrale"
Blanc, Jean-Baptiste, and Julien Bailly. "Sobriété énergétique et efficacité opérationnelle, enjeux d'un équilibre incontournable." Revue internationale et stratégique N° 131, no. 3 (September 29, 2023): 21–31. http://dx.doi.org/10.3917/ris.131.0021.
Full textCharlier, Dorothée. "Efficacité énergétique dans le bâtiment et paradoxe énergétique : quelles conséquences pour la transition énergétique ?" Revue d'économie industrielle, no. 148 (December 30, 2014): 229–62. http://dx.doi.org/10.4000/rei.5985.
Full textViens, Catherine. "Efficacité énergétique en inde: emplacement institutionnel et perception de l’enjeu." Revista Temas, no. 11 (November 3, 2017): 39. http://dx.doi.org/10.15332/rt.v0i11.1746.
Full textCadoret, Isabelle, and Veronique Thelen. "Précarité énergétique en Europe : existe-t-il une relation de Kuznets?" La Revue Internationale des Économistes de Langue Française 5, no. 1 (June 30, 2020): 166–86. http://dx.doi.org/10.18559/rielf.2020.1.7.
Full textSami-Mécheri, Sabrina, Djaffar Semmar, and Abdelkader Hamid. "Efficacité énergétique des logements à haute performance énergétique, ‘HPE’: Application au site de Béchar." Journal of Renewable Energies 15, no. 2 (October 23, 2023): 357–64. http://dx.doi.org/10.54966/jreen.v15i2.326.
Full textCassier, Alain. "Réduire la consommation énergétique des avions." Annales des Mines - Réalités industrielles Mai 2024, no. 2 (June 14, 2024): 112–16. http://dx.doi.org/10.3917/rindu1.242.0112.
Full textSun, Shouheng. "Comment l’industrie du gaz naturel peut-elle faire progresser les objectifs de double carbone? Une étude de cas de la Chine selon la perspective de la chaîne industrielle." Revue Organisations & territoires 31, no. 3 (January 9, 2023): 137–50. http://dx.doi.org/10.1522/revueot.v31n3.1525.
Full textSELLIER, P., J. BOUIX, G. RENAND, and M. MOLÉNAT. "Les objectifs et les critères de sélection : Les aptitudes bouchères : croissance, efficacité alimentaire et qualité de la carcasse." INRAE Productions Animales 5, HS (December 2, 1992): 147–59. http://dx.doi.org/10.20870/productions-animales.1992.5.hs.4278.
Full textKountouris, Marios, and Laurent Clavier. "Du « sens » dans les réseaux." Annales des Mines - Enjeux numériques 27, no. 3 (September 27, 2024): 200–205. http://dx.doi.org/10.3917/ennu.027.0200.
Full textKibi, N., J. L. Sasseville, J. M. Martel, and J. F. Blais. "Choix multicritère de procédés d'épuration des eaux usées municipales." Revue des sciences de l'eau 13, no. 1 (April 12, 2005): 21–38. http://dx.doi.org/10.7202/705378ar.
Full textDissertations / Theses on the topic "Efficacité énergétique et spéctrale"
Chebbi, Samar. "Massive access for 5G networks and beyond." Electronic Thesis or Diss., Limoges, 2025. http://www.theses.fr/2025LIMO0003.
Full textThis thesis addresses the challenges posed by the design and optimization of MIMO-NOMA wireless communication systems in fifth (5G) and sixth-generation (6G) networks. These technologies are pivotal for modern applications requiring Ultra-Reliable Low-Latency Communication (uRLLC), such as autonomous vehicles, industrial automation, and augmented reality systems. The main objective of this thesis is to develop advanced techniques for resource management, delay reduction, and energy efficiency enhancement in a context where a large number of users simultaneously share network resources. First, the thesis presents a comprehensive literature review covering the fundamentals of Non- Orthogonal Multiple Access (NOMA) and MIMO systems, along with recent advancements in uRLLC communication. Next, innovative algorithms for user clustering and power allocation, based on latency and spatial correlation, are proposed. These algorithms prioritize users based on their Quality of Service (QoS) requirements and minimize inter-cluster interference. Additionally, a framework for delay modeling and simulation in MIMO-NOMA systems is developed, incorporating realistic scenarios where data packets are transmitted according to their delay constraints. The simulation results demonstrate significant improvements in reducing average delay, increasing the number of users served, and enhancing energy efficiency compared to existing methods. Moreover, the comparative analysis reveals that leveraging spatial correlation and latency-based clustering approaches better meets the demands of time-critical applications. These findings contribute substantially to the design of 5G/6G networks by offering solutions that address the challenges of massive low-latency communications and high-density user environments
Jaouadi, Randa. "Compromis efficacité énergétique et efficacité spectrale pour les objets communicants autonomes." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT4041/document.
Full textTechnological advances have led to the develop- ment of wireless sensor applications. These sensors are generally deployed with reduced energy resources where replacing a battery can be costly. Energy ef ficiency is an important constraint to ensure a high level of autonomy. The current trend towards high- throughput applications requires not only high spectral efficiency but also reduced energy consumption. It is therefore essential to study the trade-off between spec tral efficiency and energy efficiency for wireless sensor networks (WSNs). In this thesis we concentrate on the different techniques adopted at the level of the phys- ical layer. At first, the various aspects characterizing the WSNs are introduced. Then, the efforts made to optimize the conservation of energy in these networks are summarized while highlighting the link between the energy consumption and the spectral efficiency. Then, different energy models are introduced and classified in order to study the evolution of the consumed energy as a function of the spectral efficiency. Secondly, we focus on the choice of modulation in order to find the optimal scheme that minimizes energy. We then studied the tradeoff between energy and spectral efficiency, taking into account the constraints imposed by the sys- tem. Finally, we are interested in coding strategy and error control protocol to study their impact on the energy efficiency and spectral efficiency tradeoff
Smida, Rafik. "TIC et environnement : optimisation et efficacité énergétique. (Cas de la Tunisie)." Thesis, Université Côte d'Azur (ComUE), 2016. http://www.theses.fr/2016AZUR0037.
Full textThe relationship between ICT, environment and energy efficiency causes a lot of controversies. Theseconcepts are rarely associated, especially for smaller emerging economies. Yet each has a significant impacton the other. The negative effects of ICT on the environment are various, in the same way, use and diffusionof ICT can also benefit the environment. This PhD thesis put forward further study impacts of ICT on energyconsumption and emissions of greenhouse gases, at the macro level for the case of Tunisia. The generalcontext of this thesis focuses on the relationship between the environment and the innovation theory, whilethe specific context focuses specifically on the energy consumption of ICT. Our approach is inserted underthe theory of innovation and economic basis for the use of new technologies, specifically at the intersectionof industrial economics and environmental economics. Our research focused on three main aspects:theoretical, empirical and descriptive. Firstly, this study handled the theory of environmental innovationsand its relationship with general purpose technology and ICT especially. Secondly, this thesis has allowed usto develop a detailed descriptive analyses based on the data and statistics from the World Bank, and otherinstitutions. Thirdly, a set of statistical tests and rigorous econometric models were applied to determine thelink between ICT investment and energy efficiency in Tunisia
Amdouni, Ichrak. "Réseaux sans fil auto-adaptatifs: efficacité énergétique et réutilisation spatiale." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2013. http://tel.archives-ouvertes.fr/tel-00808651.
Full textZoughaib, Assaad. "Conception de réfrigérateurs domestiques à haute efficacité énergétique." Paris, ENMP, 2003. http://www.theses.fr/2003ENMP1261.
Full textThe energy efficiency of domestic refrigerators is the regulated by of two European Directives. In addition, high energy efficiency became a marketing tool for these appliances. This thesis presents the modelling of the domestic refrigerator operation. The developed models have been validated on a reference appliance. The developed software are used to evaluate the impact on energy efficiency, and the economic viability of the major technical options: the rigid polyurethane thickness increase, the use of vacuum insulation panels, compressor efficiency improvement , heat exchangers improvement, better design of the control of double volume appliances and energy consumption reduction of the No-Frost appliances accessories. Demonstrators have been realized and tested to validate the energy savings calculated for the use of vacuum insulation panels and the use of a Roll-Bond type evaporator. The last part of the thesis deals with an innovative component development, the turbo expander. The turbo expander drives a fan which improves the convective heat transfer on the evaporator. The chosen technology is a Pelton type air turbine. A model for the fluid flow in the nozzle has been developed which permitted its design. The designed turbo expander has been realized and integrated in a refrigerator. Tests have shown differences between the capillary tube and the turbo expander expansion process. Further works shall be done in order to better understand these differences
Ilchev, Konstantin. "L'efficacité énergétique et le droit." Thesis, Université Côte d'Azur (ComUE), 2017. http://www.theses.fr/2017AZUR0035/document.
Full textThe European Union and its Member States shall continue to evolve towards a sustainable, intelligent, inclusive and low-carbon society. Energy efficiency would be the basis for the socio-economic redesign of Europe and would lay the groundwork for new, necessarily transverse socio-economic paradigms. The multi-sector domain of energy efficiency need to be fully implemented in a harmonized, transparent and evolving regulatory and normative framework. We therefore carried out an analysis of the implementation of energy efficiency at two levels: regional level (European law) and nation level (French law). Firstly, we have noted the legal singularity of energy efficiency, which lies in its genesis and its multiform relationships. Secondly, we have demonstrated the multidisciplinary nature of energy efficiency. Indeed, we have seen that energy efficiency is recognized in both public and private law. In sum, the concept of energy efficiency materializes the emergence of a new legal reading grid. The approach is transverse to account more accurately for the interactions and synergies between the various contemporary socio-economic phenomena, which go hand in hand with technological progress and innovation
Gabsi, Farah. "Efficacité énergétique des bâtiments : modélisation hygrothermique et commande prédictive économique régularisée." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0184.
Full textIn this thesis, we propose a comprehensive methodology to simulate the hygrothermal behaviour and continuously monitor the energy efficiency of buildings. The multi-zone model developed is of the grey box type and is based on heat and moisture transfer processes. It integrates solar radiation as an energy source as well as heating, ventilation and air conditioning systems such as heat pumps or VMCs. This hygrothermal model allows the estimation and prediction of microclimatic data such as operative temperature, radiant temperature and humidity rate which are essential for the qualification of thermal comfort. The generated model is used to develop new economic model predictive control strategy to ensure hygrothermal comfort in occupied areas of the building while minimizing its energy consumption. Thermal comfort indicators are taken into account in the definition of a performance criterion and the cost induced by the use of the different equipments is used to define an economic criterion. The specifications related to the use of the different equipment are taken into account by a regularization term. The stress caused by the successive and too frequent start/stop of certain equipment is taken into account. These changes of state are generally detrimental to the lifetime of the equipment and represent, at the very least, an energy inefficient mode of operation. The solution presented also allows the number of active control inputs to be monitored at any time and inappropriate control scenarios to be avoided. In response to the optimization problem, the advantage of a sparse control strategy is highlighted. The fault-tolerance of optimal control scenarios to the occurrence of certain actuator faults is also a property that is taken into consideration
Tanvir, Sadaf. "Localisation dans les réseaux de capteurs : protocoles de communication et efficacité énergétique." Phd thesis, Grenoble, 2010. http://www.theses.fr/2010GRENM011.
Full textThis thesis deals with localization and energy consumption in Wireless Sensor Networks (WSN). Communication cost is the major source of energy consumption during localization process in WSN. Carrying out WSN localization is a cooperative process throughout the whole network. There are many ways of organizing this cooperation. We propose three such possibilities in the form of our contributed protocols. Cooperation among distributed nodes generates many radio transmissions. Radio broadcasting is often seen as a drawback in WSN because of overhearing. Here, we turn this drawback into a key feature to improve energy consumption during localization. We analyze our protocols' convergence condition, propagation, speed and communication cost with a simulation tool. We show that one of our approach which takes the most benefit from overhearing, outperforms the other two both in terms of convergence speed and communication cost
Chen, Langshi. "Méthode de Krylov itératives avec communication et efficacité énergétique optimisées sur machine hétérogène." Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL10114/document.
Full textIterative methods are frequently used in extremely large scale linear problems, such solving linear systems or finding eigenvalue/eigenvectors of matrices. As these iterative methods require a substantial computational workload, they are normally deployed on large clusters of distributed memory architectures communicated via MPI. When the problem size scales up, the communication becomes a major bottleneck of reaching a higher scalability because of two reasons: 1) Many of the iterative methods rely on BLAS-2 low level matrix vector kernels that are communication intensive. 2) Data movement (memory access, MPI communication) is much slower than processor's speed. In case of sparse matrix operations such as Sparse Matrix Vector Multiplication (SpMV), the communication even replaces the computation as the dominant time cost. Furthermore, the advent of accelerators/coprocessors like Nvidia's GPU make computation cost more cheaper, while the communication cost remains high in such CPU-coprocessor heterogeneous systems. Thus, the first part of our work focus on the optimization of communication cost of iterative methods on heterogeneous clusters. Besides the communication cost, power wall becomes another bottleneck of future exascale computing in recent time. Researches indicate that a power-aware algorithmic implementation strategy could efficiently reduce the power dissipation of large clusters. We also explore the potential energy saving implementation of iterative methods in our experimentation. Finally, both the communication optimization and energy efficiency implementation would be integrated into a GMRES method, which demands an auto-tuning framework to maximize its performance
Reddick, J. Christopher. "Conception, construction et analyse d'un système de réfrigération à éjecteur." Mémoire, Université de Sherbrooke, 2012. http://savoirs.usherbrooke.ca/handle/11143/1611.
Full textBooks on the topic "Efficacité énergétique et spéctrale"
Félice, Éric. Qualité des réseaux électriques et efficacité énergétique. Paris: Dunod, 2009.
Find full textSlaoui, Salma. Architecture durable et efficacité énergétique au Maroc. Saarbrücken: Éditions universitaires européennes, 2017.
Find full textDockrill, Paul. Amélioration de l'efficacité énergétique des systèmes de chauffage. Nepean, Ont: Ressources naturelles Canada, Office de l'efficacité énergétique, 2001.
Find full textCanada, Canada Ressources naturelles. Guide de remplacement des lampes: Règlement sur l'efficacité énergétique des lampes fluorescentes et des lampes-réflecteurs à incandescence. Ottawa, Ont: Ressources naturelles Canada, 1995.
Find full textH, Hooke James, Landry Byron, Hart David, and Canada. Office de l'efficacité énergétique., eds. Systèmes d'information sur la gestion de l'énergie: Pour une meilleure efficacité énergétique : guide à l'usage des gestionnaires, des ingénieurs et du personnel opérationnel. [Ottawa, Ont: Publié par l'Office de l'efficacité énergétique de Ressources naturelles Canada], 2004.
Find full textCárcel Carrasco, Javier, Elisa Peñalvo López, José Ramón Albiol Ibáñez, and José Manuel Gandía Romero. Efficacité énergétique et construction durable. Editorial Científica 3Ciencias, 2021. http://dx.doi.org/10.17993/ingytec.2021.74.
Full textHabermann, Karl J., Roberto Gonzalo, and Y. Minssart. Architecture et Efficacité énergétique: Principes de Conception et de Construction. de Gruyter GmbH, Walter, 2008.
Find full textHabermann, Karl J., and Roberto Gonzalo. Architecture et efficacité énergétique: Principes de conception et de construction (French Edition). Birkhäuser, 2008.
Find full textTrousse info-achats: Guide d'achat des produits répondant aux exigences Energy Star : les produits de haute efficacité énergétique peuvent réduire les factures de services publics, améliorer le résultat net et favoriser la protection de l'environnement. [Ottawa, Ont.]: Ressources naturelles Canada, 2003.
Find full textBook chapters on the topic "Efficacité énergétique et spéctrale"
"LES ORIGINES DE LA CONSTRUCTION SOUCIEUSE DES RESSOURCES ET DE L’ÉNERGIE." In Architecture et efficacité énergétique, 7–24. Birkhäuser, 2008. http://dx.doi.org/10.1007/978-3-7643-8452-4_1.
Full text"URBANISME ÉNERGÉTIQUEMENT EFFICACE: PRINCIPES ET STRATÉGIES." In Architecture et efficacité énergétique, 25–42. Birkhäuser, 2008. http://dx.doi.org/10.1007/978-3-7643-8452-4_2.
Full text"URBANISME ÉNERGÉTIQUEMENT EFFICACE: EXEMPLES." In Architecture et efficacité énergétique, 43–86. Birkhäuser, 2008. http://dx.doi.org/10.1007/978-3-7643-8452-4_3.
Full text"CONCEPTION DE BÂTIMENTS ÉNERGÉTIQUEMENT EFFICACES : PRINCIPES ET MESURES." In Architecture et efficacité énergétique, 87–114. Birkhäuser, 2008. http://dx.doi.org/10.1007/978-3-7643-8452-4_4.
Full text"CONCEPTION DE BÂTIMENTS ÉNERGÉTIQUEMENT EFFICACES: EXEMPLES." In Architecture et efficacité énergétique, 115–200. Birkhäuser, 2008. http://dx.doi.org/10.1007/978-3-7643-8452-4_5.
Full text"CONCEPTION DES DÉTAILS ET AMÉNAGEMENT TECHNIQUE ÉNERGÉTIQUEMENT EFFICACES." In Architecture et efficacité énergétique, 201–10. Birkhäuser, 2008. http://dx.doi.org/10.1007/978-3-7643-8452-4_6.
Full text"Bibliographie – Webographie." In Bâtiment intelligent et efficacité énergétique, 231–33. Dunod, 2016. http://dx.doi.org/10.3917/dunod.beddi.2016.01.0231.
Full textMorlat, Clément, and Kléber Pinto-Silva. "Chapitre 5. Développement durable, éthique et efficacité énergétique." In Regards croisés Nord-Sud sur le développement durable, 113–33. De Boeck Supérieur, 2015. http://dx.doi.org/10.3917/dbu.dieme.2015.01.0113.
Full textOser, Jürgen. "Protection du climat, énergies renouvelables et efficacité énergétique dans la Région métropolitaine trinationale du Rhin supérieur." In La transition énergétique, 103–14. CIRAC, 2017. http://dx.doi.org/10.4000/books.cirac.1086.
Full textBENBLIDIA, Mohammed Anis, Leila MERGHEM-BOULAHIA, Moez ESSEGHIR, and Bouziane BRIK. "Gestion intelligente des ressources dans un système Smart Grid-Cloud pour une meilleure efficacité énergétique." In Gestion et contrôle intelligents des réseaux, 181–204. ISTE Group, 2020. http://dx.doi.org/10.51926/iste.9008.ch7.
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