Academic literature on the topic 'Systeme solaire'

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Journal articles on the topic "Systeme solaire"

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Bibring, J. P. "La matiere primitive dans le systeme solaire." Bulletin de la Société Géologique de France III, no. 1 (January 1, 1987): 9–12. http://dx.doi.org/10.2113/gssgfbull.iii.1.9.

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Revah, I. "Le programme Francais d'exploration du systeme solaire." Advances in Space Research 10, no. 3-4 (January 1990): 333–35. http://dx.doi.org/10.1016/0273-1177(90)90365-7.

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Knani, H. "L'AMELIORATION DU BILAN THERMIQUE DES SERRES PAR L'UTILISATION D'UN SYSTEME DE CHAUFFAGE SOLAIRE PASSIF." Acta Horticulturae, no. 263 (June 1990): 103–10. http://dx.doi.org/10.17660/actahortic.1990.263.9.

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Girolami, G., J. H. Balbi, N. Balbi, P. Orenga, and C. Riolacci. "Modelisation d'un systeme reel: Champ de capteurs de la centrale solaire de vignola (corse)." Journal of Power Sources 24, no. 4 (November 1988): 273–86. http://dx.doi.org/10.1016/0378-7753(88)80103-4.

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DIOP, Thiar, Moustapha THIAME, and Ababacar NDIAYE. "Analyse des défaillances des systèmes photovoltaïques en climat soudano-guineen : cas des systemes de pompage solaire en Casamance." Journal de Physique de la SOAPHYS 3, no. 2 (November 1, 2023): C23N19–1—C23N19–5. http://dx.doi.org/10.46411/jpsoaphys.2023.020.

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Parmi les grands enjeux de développement en Afrique subsaharienne, l’approvisionnement en eau, soit pour la consommation domestique, soit pour l’agriculteur (élevage et irrigation) occupe une place capitale. Ainsi au Sénégal, dans plusieurs zones enclavées de la Casamance, le recours au système de pompage solaire est largement utilisé. Cependant, la gestion de la maintenance continue de limiter les performances et la durée de vie de ces systèmes. Dans cette étude, nous effectuons une analyse des défaillances des systèmes de pompage solaire photovoltaïque. Pour cela, un grand nombre de systèmes de pompage solaire, dont les puissances varient de 264 W à 5000 W, installés en Casamance particulièrement dans la région de Ziguinchor, ont été suivis afin d’identifier à grandes échelles les défaillances les plus récurrentes et leurs causes. Les résultats obtenus montrent que les contrôleurs sont les éléments les plus fragiles dans le système et que 34,8% des défaillances sont dues à une panne de ces derniers ; alors que 21,7% des défaillances sont liées à la pompe. Les sondes, les flotteurs et les tuyaux impactent sur le dysfonctionnement des systèmes de pompage photovoltaïque avec un niveau de récurrence de 17,4% chacun, alors que le variateur impacte avec un niveau de 8,7%. La principale cause de ces défaillances est la foudre avec une récurrence de 34,5%.
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Jung, Daniel, Nicolas Roux, Cyrille Lemoine, and Jérôme Pannejon. "Modélisation d'un procédé de séchage solaire de boues urbaines." Journal Européen des Systèmes Automatisés 44, no. 4-5 (May 30, 2010): 393–407. http://dx.doi.org/10.3166/jesa.44.393-407.

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Abdul, Rawaa A. "Solar PV System for Water Pumping Incorporating an MPPT based Bat Optimization Circuits and Systems." Journal of Advanced Research in Dynamical and Control Systems 12, no. 01-Special Issue (February 13, 2020): 786–94. http://dx.doi.org/10.5373/jardcs/v12sp1/20201130.

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Daxecker, F., M. Blumthaler, and W. Ambach. "Keratitis Solaris and Sunbeds." Ophthalmologica 209, no. 6 (1995): 329–30. http://dx.doi.org/10.1159/000310652.

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Woźniak, Adam. "Solarne słupy oświetleniowe z innowacyjnym systemem zasilania fotowoltaicznego." WIADOMOŚCI ELEKTROTECHNICZNE 1, no. 12 (December 21, 2023): 21–22. http://dx.doi.org/10.15199/74.2023.12.4.

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Pimenta, Samy, Dimas Menezes, Diogo G. Neder, Roberto A. Melo, Ana LR Araujo, and Elizabeth AA Maranhão. "Adaptability and stability of pepper hybrids under conventional and organic production systems." Horticultura Brasileira 34, no. 2 (June 2016): 168–74. http://dx.doi.org/10.1590/s0102-053620160000200004.

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ABSTRACT Pepper is one of the main vegetable crops commercialized in Brazil and it is grown throughout the country. The objective of this study was to estimate genetic parameters and predict the genotypic values involved in agronomic traits of hybrid pepper in two different cropping systems in order to verify adaptability and genotypic stability. The experiment was carried out at the Experimental Station Luiz Jorge da Gama Wanderley from IPA, located in Vitoria de Santo Antão, Pernambuco State, Brazil, from October 2010 to March 2011. Seven hybrids were evaluated in two trials, the first in conventional farming system and the second in organic cultivation system. Randomized blocks were used with seven treatments, four replications and plots consisting of six plants. We evaluated the following fruit variables: total mass (MTF), total number (NTF), average length (CMF), average diameter (DMF), number of locules (NL) and average thickness of the pericarp (EP). Statistical analyzes and estimation of genetic parameters were based on mixed models of type REML/BLUP, using the statistical model and software SELEGEN 151. All traits showed good accuracy. The genotype average heritability (h2mg) was lower than 80% only for the trait NTF. Some characters had h2mg close to 100% such as CMF and DMF with 99.1% and 98.3%, respectively. The hybrids presenting a predicted genotypic effect higher than the average were: Atlantis, Máximos, Solario and Rubia R for NTF, Solario and Atlantis for MFT, Impacto, Máximos, Atlantis, Hebron and Rubia R to CMF, Solario and Enterprise for DMF, Solario, Impacto, Rubia R and Atlantis for NL and Solario and Enterprise for EP. Hybrids presenting the highest performance in the traits evaluated for each system were the same selected based on the joint analysis of the studied systems, showing stability and enabling their indication for organic and conventional cropping systems.
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Dissertations / Theses on the topic "Systeme solaire"

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Guan, Yuan Yong. "Photochimie expérimentale en orbite terrestre et en laboratoire appliquée à la chimie organique dans le système solaire." Thesis, Paris Est, 2010. http://www.theses.fr/2010PEST1064.

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Ce travail de thèse s'inscrit dans le cadre des recherches sur la chimie prébiotique. Il est étroitement lié avec les trois expériences d'exposition en orbite terrestre UVolution, AMINO, PROCESS du projet EXPOSE. Il a pour objet d'étudier la photostabilité et la photochimie de molécules organiques dans un contexte exobiologique. Ces expériences consistent à exposer des molécules en phase solides ou des mélanges gazeux concernant l'étude des comètes (dans le cadre de la préparation à l'interprétation des résultats de la mission ROSETTA), la chimie organique de Titan (mission CASSINI-HUYGENS), ou encore la chimie organique dans l'environnement martien (futures missions in situ). Les analyses en spectrométrie infrarouge et en chromatographie en phase gazeuse couplée à la spectrométrie de masse, sur les échantillons de retour de l'expérience UVolution (14-26/09/2007) sont comparées avec des simulations expérimentales menées parallèlement en laboratoire. De nouvelles données sur la photostabilité de composés organiques dans les environnements extraterrestres ont ainsi pu être mesurées. Les temps de demi-vie à une distance du soleil de 1 UA varient entre quelques jours et quelques dizaines de jours pour les plus photorésistants (ex. adénine, guanine, hypoxanthine). Pour les composés photolysés dans le domaine VUV, à partir de 120 nm (simulant la photochimie des comètes et la surface des petits corps, ainsi que la haute atmosphère de Titan), les temps de vie mesurés en orbite sont très différents de ceux calculés à partir des expériences de laboratoire. Ces résultats nous confirment qu'il est difficile de simuler en laboratoire le spectre solaire dans ce domaine de longueurs d'ondes.Par contre, pour les composés photolysés dans une gamme de longueur d'onde moins énergétique (>190 nm, simulant la photochimie à la surface de Mars), les résultats des mesures en orbite et en laboratoire sont relativement cohérents. Il est aussi montré, que la présence d'analogues de sol martien augmente la vitesse de photodestruction de certaines molécules (acide phtalique et acide amino isobutyrique). Pour ce qui concerne l'analyse de la phase gazeuse, des analyses chromatographiques ont mis en évidence la formation de petits hydrocarbures (C2H6, C2H4) dans les cellules contenant du méthane (mélangé avec de l'azote ou de l'argon pour simuler la chimie du méthane dans l'atmosphère de Titan). Ces composés ont aussi été produits par des échantillons de tholins (analogue des aérosols de Titan). Ces résultats sont discutés, et mettent en avant la nécessité de réaliser des expériences en orbite de plus longue durée, où l'évolution des échantillons est mesurée en continue. Il apparait aussi clairement que les mesures de laboratoires effectuées dans le domaine VUV doivent être extrapolées avec précaution aux différents environnements qu'elles sont sensées simuler
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ROSSI, ALESSANDRO. "Debris naturels et artificiels autour des corps du systeme solaire." Paris 7, 1999. http://www.theses.fr/1999PA077221.

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La premiere partie de la these concerne l'etude des mission spatiales vers les asteroides en particulier vers les asteroides proche de la terre (neas). Apres une description de la faisabilite de ces missions, une emphase particuliere est donne a l'etude de la possible existence de debris en orbite autour de ces corps. Pour realiser ces recherches, un modele pour calculer le potentiel gravitationnel d'un polyedre de n'importe quelle forme, et pour integrer numeriquement des orbites autour du corps, a ete etudie et codifie. Avec ce modele, les zones de stabilite autour des asteroides cibles de la mission rosetta sont etudiees, encore pour verifier la possibilite de l'existence de debris en orbite. Ces zones sont decrites en detail et des indications sont donnees pour un passage proche plus sur pour la sonde. En plus le modele est utilise pour l'etude de la stabilite dynamique des systemes asteroidales binaires observes. Pour un d'eux (1994 aw1), nous avons donnee une description plus precise du systeme en restreindant le domaine d'incertitude des parametres du systeme derives par les courbes de lumiere. Dans la deuxieme partie de la these le foyer est deplace vers l'orbite terrestre et maintenant les debris artificiels qui polluent l'espace pres de la terre sont etudies. Je donne un cadre general des hasards poses a les missions spatiales par les debris, au moyen d'un nouveau modele pour calculer et visualiser le risque d'impact. Ensuite l'evolution a longue terme de la population globale des debris est etudiee par des modeles mathematiques, en tenant compte de tous les principaux processus de source et de puits qui reglent la marche de la croissance des debris. Enfin les consequences d'une fragmentation d'un satellite partie d'une constellation, en orbite terrestre bas avec haut inclinaison, sont analysees. Il est demontre comme la dynamique du systeme porte a des hasards a moyen terme pour les autres membres de la constellation.
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Fouchet, Thierry. "Physico-chimie de l'atmosphère jovienne à partir de l'analyse des données du satellite infrarouge ISO." Paris 6, 2000. http://www.theses.fr/2000PA066169.

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Baleynaud, Jean-Michel. "Contribution a la modelisation de l'habitat solaire passif : validation et etude de facteurs de sensibilite." Toulouse 3, 1987. http://www.theses.fr/1987TOU30052.

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Description de la methode de modelisation et du contexte experimental servant de support a la validation du modele. Celle-ci est realisee en comparant les evolutions thermiques de la temperature de l'air et de surface dans les locaux de la cellule experimentale, avec les calculs theoriques effectues sur ordinateur
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Lécluse, Christine. "Fractionnement isotopique des elements legers au cours de la formation du systeme solaire." Paris 7, 1993. http://www.theses.fr/1993PA077177.

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Le systeme solaire s'est forme par effrondrement gravitationnel d'un nuage interstellaire, ce qui conduit a des fractionnements chimiques et isotopiques. Nous avons etudie deux problemes lies au fractionnement isotopique de l'hydrogene et un probleme lie au carbone: 1) nous avons mesure les vitesses d'echange isotopique entre h2 et h20 en laboratoire et nous avons conclu que l'enrichissement en deuterium de l'eau du systeme solaire est du a un echange isotopique additionne d'un fractionnement entre la vapeur d'eau et la glace dans la nebuleuse protosolaire. 2) nous avons mesure les vitesses d'echange isotopique entre ch4 et h2, et nous les avons extrapolees aux atmospheres des planetes geantes. Nous avons conclu que le rapport d/h du h2 atmospherique de ces planetes est proche de celui de la nebuleuse protosolaire. Nous avons egalement etudie la composition isotopique en carbone d'analogues cometaires soumis au vent solaire et nous avons conclu qu'il ne modifie pas la composition en carbone du manteau organique des cometes
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RENARD, JEAN-BAPTISTE. "Mise en evidcence de l'evolution des proprietes optiques et physiques des grains dans le systeme solaire." Paris 6, 1992. http://www.theses.fr/1992PA066307.

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L'etude de la lumiere que diffusent des grains dans les chevelures cometaires et dans le milieu interplanetaire, ainsi que celle de leur emissivite, permet d'acceder a leurs proprietes physiques. La technique de ccd polarisation, utilisee avec le telescope de 2 metres du pic du midi, fournit des cartes d'intensite et de polarisation de la chevelure interne de la comete levy 1990c. Ces cartes montrent l'heterogeneite du milieu, ainsi que la presence de jets. Une augmentation de la polarisation detectee dans un jet pourrait etre associee a la presence de glaces sur les grains recemment ejectes. La methode des nuds de moindre incertitude, appliquee aux donnees d'intensite et d'emissivite des poussieres interplanetaires, permet d'obtenir les contributions locales (intensite, polarisation, temperature et albedo) pour des distances au soleil jusqu'a 1,5 ua, et pour des angles de phase inferieurs a 90. On en deduit qu'avec la distance au soleil dans le plan de symetrie, l'albedo local decroit tandis que la polarisation croit. Cette methode est aussi appliquee pour des visees vers le pole, puis dans le plan tangentiel. L'intensite locale, la polarisation locale et la temperature decroissent, tandis que l'albedo local croit legerement, avec l'augmentation de l'altitude sur le plan de symetrie. Ces differents resultats traduisent l'heterogeneite du nuage zodiacal et l'evolution temporelle des grains interplanetaires. Ils suggerent un modele de distribution des poussieres suivant au moins deux populations: la premiere, repartie de maniere isotrope (centree sur le soleil), contiendrait des grains d'origine cometaire, et la deuxieme, englobant le plan de symetrie, serait constituee d'un melange de grains issus de cometes et de collisions d'asteroides
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Jacquet, Emmanuel. "Les solides du système solaire primitif : géochimie et dynamique." Phd thesis, Museum national d'histoire naturelle - MNHN PARIS, 2012. http://tel.archives-ouvertes.fr/tel-00761687.

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Cette thèse est consacrée à l'histoire des solides du système solaire primitif. Nous étudions la dynamique des composants chondritiques et trouvons que leur préservation pendant plusieurs Ma dans le disque protoplanétaire nécessite une zone morte. Cette dynamique est essentiellement gouvernée par un paramètre de découplage gaz-solide S que nous conjecturons avoir été <1 et >1 lors de l'accrétion des chondrites carbonées et non carbonées, respectivement. Nous étudions aussi des modèles réduits pour l'interaction entre la turbulence magnétohydrodynamique et la sédimentation de la poussière ainsi que l'instabilité d'écoulement linéaire. Nous mesurons la concentration d'éléments en trace dans les phases des chondres dans Vigarano, Renazzo, Acfer 187, Bishunpur et Sahara 97096. L'olivine dans les chondres de type I semble résulter d'une cristallisation à l'équilibre tandis que le pyroxène enregistre des taux de refroidissement rapides et est compatible avec une interaction gaz-liquide.
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LAGE, NOGUEIRA JOSE WILSON. "Faisabilite technico-economique d'un systeme solaire complexe constitue d'un bassin solaire et d'un distillateur a multiples effets en vue de la production simultanee de sel et d'eau distillee." Nice, 1991. http://www.theses.fr/1991NICE4517.

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L'auteur etudie theoriquement le comportement d'un bassin solaire couple a un distillateur a multiples effets en vue de la production de sel et d'eau distillee. Il simule son evolution avec des donnees meteorologiques d'une region bresilienne situee au voisinage de l'equateur. Il propose une methode de dimensionnement du systeme et montre, a l'aide d'un programme informatique, l'influence de divers parametres caracteristiques de son fonctionnement sur les performances du bassin. Enfin, il evalue le prix d'eau distillee produite et compare son cout avec celui relatif a d'autres procedes de dessalement
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Boukadida, Nourredine. "Etude d'une structure a effet de diode thermique : application au chauffage solaire d'un local." Poitiers, 1986. http://www.theses.fr/1986POIT2287.

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Etude de l'optimisation de l'effet de diode thermique d'une structure pouvant servir de paroi d'un local. Definition d'une structure alveolaire a lamelles. Etude numerique approchee du comportement thermique journalier et annuel d'un local a structure a effet diode
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ENDAMNE, EMMANUEL. "Faisabilite technico-economique d'un systeme de sechage solaire de feves de cacao au gabon, constitue d'un sechoir situe a l'interieur d'une serre agricole." Paris 7, 1990. http://www.theses.fr/1990PA077193.

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L'auteur etudie un systeme complexe du sechage constitue d'une serre agricole abritant un sechoir conventionnel. Il propose un modele de fonctionnement du systeme et un programme de calcul numerique permettant de simuler son comportement: trois scenarios sont envisages: 1) dans le premier, l'air sortant du sechoir est evacue; 2) dans le deuxieme, celui-ci est recycle a travers la source de chaleur conventionnelle se trouvant dans le sechoir; 3) dans le troisieme, celui-ci est recycle a travers la serre. Dans chaque cas, les aspects economiques sont pris en compte de facon a juger la faisabilite technico-economique du systeme suppose etre delegue pour le sechage des feves de cacao au gabon
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Books on the topic "Systeme solaire"

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Jones, Barrie William. Discovering the solar system. Chichester: Wiley, 1999.

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Encrenaz, Thérèse. Le système solaire. Paris: InterEditions, 1987.

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Jenkins, Alvin W. Le système solaire. [France?]: Circonflexe, 2005.

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Frankel, Charles. Volcanoes of the solar system. Cambridge: Cambridge University Press, 1996.

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Chastenay, Pierre. La terre, la lune et le soleil. Waterloo, Québec: Éditions Michel Quintin, 2004.

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Lilensten, Jean, and Mathieu Barthélémy. Le système solaire revisité. Paris: Eyrolles, 2006.

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Bendjoya, Philippe. Collisions dans le système solaire. Paris: Belin, 1998.

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Trinh, Xuan Thuan. The secret melody: And man created the universe. New York: Oxford University Press, 1995.

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Sriranga, Veeraraghavan, ed. Solaris 8: The complete reference. Berkeley, Calif: Osborne/McGraw-Hill, 2000.

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Gove, Darryl. Solaris application programming. Upper Saddle River, N.J: Sun Microsystems Press/Prentice Hall, 2008.

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Book chapters on the topic "Systeme solaire"

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Henning, Hans-Martin. "Solar Cooling Systems solar cooling system." In Solar Energy, 441–94. New York, NY: Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-5806-7_690.

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Henning, Hans-Martin. "Solar Cooling Systems solar cooling system." In Encyclopedia of Sustainability Science and Technology, 9509–62. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4419-0851-3_690.

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Mann, Ingrid. "Dust in the Solar System and in Other Planetary Systems." In Solar and Extra-Solar Planetary Systems, 218–42. Berlin, Heidelberg: Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-44807-1_13.

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Handschuch, Thomas. "Installation des Systems." In Solaris 7, 10–45. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58377-3_2.

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Handschuch, Thomas. "Starten und Anhalten des Systems." In Solaris 7, 72–97. Berlin, Heidelberg: Springer Berlin Heidelberg, 1999. http://dx.doi.org/10.1007/978-3-642-58377-3_4.

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Spohn, Tilman. "Solar System." In Encyclopedia of Astrobiology, 2288–89. Berlin, Heidelberg: Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-44185-5_5152.

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Spohn, Tilman. "Solar System." In Encyclopedia of Astrobiology, 1. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-27833-4_5152-2.

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Spohn, Tilman. "Solar System." In Encyclopedia of Astrobiology, 2789. Berlin, Heidelberg: Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-65093-6_5152.

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Dincer, Ibrahim, and Dogan Erdemir. "Solar Pond Systems." In Solar Ponds, 83–122. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-45457-8_3.

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Dincer, Ibrahim, and Dogan Erdemir. "Solar Energy Systems." In Solar Ponds, 1–40. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-45457-8_1.

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Conference papers on the topic "Systeme solaire"

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Ren, Siyue, Truls Gundersen, and Xiao Feng. "Promising Opportunities for Improving Round-Trip Efficiencies in Liquid Air Energy Storage (LAES)." In Foundations of Computer-Aided Process Design, 562–69. Hamilton, Canada: PSE Press, 2024. http://dx.doi.org/10.69997/sct.100950.

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As a promising electricity storage system, Liquid Air Energy Storage (LAES) has the main advantage of being geographically unconstrained. LAES has a considerable potential in energy efficiency improvement by utilizing compression heat and integrating with other systems. In this work, the Stirling Engine (SE) is introduced to improve the energy efficiency of the LAES system. Three LAES-SE systems are modelled in Aspen HYSYS and optimized by the Particle Swarm Optimization (PSO) algorithm. The studied systems include (i) the LAES system with 3 compressors and 3 expanders (3C+3E) using an SE to recover the compression heat, (ii) the 3C+3E LAES system with LNG regasification and SE, and (iii) the 3C+3E LAES system with solar energy and SE. The optimization results show that the Round-Trip Efficiencies (RTEs) of the LAES-SE system and the LNG-LAES-SE systems are 68.2% and 73.7%, which are 3.2% and 8.7% points higher than the basic 3C+3E LAES-ORC system with an RTE of 65.0%. For the Solar-LAES-SE system, a revised RTE and the economic performance with solar energy input are optimized. The traditional RTE for the Solar-LAES-SE system, which only accounts for power produced and consumed in the discharging and charging sections, is 189% and 173% respectively, when optimized with respect to energy and economic performances. The revised RTE accounts for the integrated external sources, avoiding the confusing result that the RTE becomes larger than 100%. The energy and economic performances of the Solar-LAES-SE system are proved to be the best compared with the Solar-LAES-ORC and Solar energy directly heated-LAES systems.
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Kabir, Md Ashfanoor, Himadri Shekhar Dey, and Hasan Mohammad Faraby. "Microfinance: The sustainable financing system for electrification and socio-economic development of remote localities by Solar Home Systems (SHSs) in Bangladesh." In 2010 4th Annual IEEE Systems Conference. IEEE, 2010. http://dx.doi.org/10.1109/systems.2010.5482477.

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Beshears, D. L., G. J. Capps, D. D. Earl, J. K. Jordan, L. C. Maxey, J. D. Muhs, and T. M. Leonard. "Tracking Systems Evaluation for the “Hybrid Lighting System”." In ASME 2003 International Solar Energy Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/isec2003-44055.

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As part of the design and development effort for the “Hybrid Lighting System,” Oak Ridge National Laboratory (ORNL) scientists have evaluated two potential candidate-tracking systems for the solar collector. The first system, the WattSun Solar Tracker, built by Array Technologies, utilizes a patented, closed loop, optical sun sensor to sense the sun’s position and track it. The second tracking system, SolarTrak Controller, built by Enhancement Electronics, Inc., is a micro controller-based tracking system. The SolarTrak micro controller-based Tracker’s sun position is determined by computing the celestial bearing of the sun with respect to the earth using the local time, date, latitude, longitude and time zone rather than sensing the relative bearing of the sun with optical receptors. This system connects directly to the mechanical system hardware supplied by Array Technologies. Both the WattSun Solar Tracker and the SolarTrak Controller were mounted on the prototype “Hybrid Lighting” mechanical system (array) hardware. A simple switch allowed independent testing of each system. Upon completion of the evaluation of the two systems we found the WattSun Solar Tracker controller to be unacceptable for use with our prototype hybrid lighting system. The SolarTrak Controller has performed well to date and provides suitable tracking accuracy for use with our prototype “Hybrid Lighting System”. After a six-month evaluation period at ORNL, the first prototype “Hybrid Lighting System” was installed at Ohio University as part of an “Enhanced Practical Photosynthetic CO2 Mitigation.” This document will highlight the results of the tracker investigation and outline the remaining issues to be addressed, to provide a suitable tracking system for our “Hybrid Lighting” collector.
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Kaushik, A., and A. Golnas. "PV system reliability: lessons learned from a fleet of 333 systems." In SPIE Solar Energy + Technology, edited by Neelkanth G. Dhere, John H. Wohlgemuth, and Kevin W. Lynn. SPIE, 2011. http://dx.doi.org/10.1117/12.893172.

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Solari, L. H. Alva, and J. E. González. "Simulation of an Air-Cooled Solar-Assisted Absorption Air Conditioning System." In ASME 2001 Solar Engineering: International Solar Energy Conference (FORUM 2001: Solar Energy — The Power to Choose). American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/sed2001-119.

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Abstract This paper investigates the technical feasibility of using a compact, air-cooled, solar-assisted, absorption air conditioning system in Puerto Rico and similar regions. Computer simulations were conducted to evaluate the system’s performance when subjected to dynamic cooling loads. Within the computer model, heat and mass balances are conducted on each component of the system, including the solar collectors, thermal storage tank, the air-cooled condenser, and the air-cooled absorber. Guidance on component design and insight into the effects of such operating factors as ambient air temperature were gained from exercising the simulation model. Comparisons are made with an absorption air conditioning system that uses a cooling tower instead of air-cooled components. The particular absorption system of study is one that uses lithium bromide and water as the absorbent and refrigerant, respectively. The heat input to the absorption system generator is provided by an array of flat plate collectors that are coupled to a thermal storage tank. Systems having nominal cooling capacities of 10.5, 14, and 17.5 kW were considered. Useful information about the number of collectors needed, storage tank volume and efficiency of the overall system is presented.
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Diver, Richard B., Charles E. Andraka, K. Scott Rawlinson, Vern Goldberg, and Gary Thomas. "The Advanced Dish Development System Project." In ASME 2001 Solar Engineering: International Solar Energy Conference (FORUM 2001: Solar Energy — The Power to Choose). American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/sed2001-112.

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Abstract The objective of the Advanced Dish Development System (ADDS) project is to develop and validate a 9-kWe dish/Stirling solar power system that meets the needs of the remote power marketplace. Key market criteria for concentrating solar power entry into remote power applications such as water pumping and village electrification are reliable unattended operation, minimal and low technology service requirements, and the ability to compete with the cost of alternatives. The Advanced Dish Development System is a test bed for advanced components and systems level testing to address the issues of the remote power market. The ADDS project involves integration and test, at a system level, of advanced dish/Stirling systems. The basic design utilizes the WGAssociates solar concentrator and controls, and the SOLO 161 Stirling Power Conversion Unit. Development has focused on extending the application of dish/Stirling systems to water pumping, reliability improvement and incorporating advanced components such as structural facets, heat pipe receivers, and advanced controls and communications. Testing includes long-term unattended, automatic operation of stand-alone 9-kWe dish/Stirling solar power generation systems in both on and off-grid modes at the National Solar Thermal Test Facility (NSTTF) in Albuquerque, NM and in the field. In 1999, a first generation (Mod 1) system was fielded at the NSTTF and routine unattended operation initiated. In 2000, a system reliability tracking system was implemented on the Mod 1 system and an upgraded, second-generation (Mod 2) system, including a stand-alone water-pumping capability was developed. To better understand the market and system requirements, field-testing will be conducted at one or more American Indian applications partners test sites in the Southwest U.S. Partnering agreements have been initiated with four tribes and familiarization training completed. In this paper, the ADDS project plan and technical approach are presented. The major system components and features along with test results and project status are also described.
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Gonza´lez, Jorge E., and Luis Humberto Alva S. "Solar Air Conditioning Systems With PCM Solar Collectors." In ASME Solar 2002: International Solar Energy Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/sed2002-1040.

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This paper investigates the technical feasibility of using a compact, air-cooled, solar absorption air conditioning system when coupled to an innovative array of solar collectors. The particular absorption system of study is a single effect that uses lithium bromide and water as the absorbent and refrigerant fluid pair. The geographical location of interest is Puerto Rico and similar subtropical regions. The heat input to the absorption system generator is provided by an array of novels flat plate solar collectors that integrate the thermal storage component into them. The proposed collectors have a phase change material (PCM) integrated into them as a storage mechanism. The PCM-integrated solar collector eliminates the need of conventional storage tanks reducing cost and space. The present work uses a paraffin-graphite composite as the PCM to increase the conductivity of the PC matrix. The paraffin’s melting point is around 89°C that is appropriate for use in absorption systems. The mathematical model that describes the thermal process in the PCM is presented and differs from the analysis of conventional flat plate solar collectors. The proposed model for the PCM considers the temporal changes but not the spatial variations. The resulting set of equations for the fluid flow, the PCM, and the collector’s surface are solved simultaneously. Results for the collectors’ thermal performance are presented along with the effects of the composition of the PCM material. The thermal performance of an absorption machine coupled to an array of the proposed PCM’s solar collectors was investigated for nominal cooling capacities of 10.5, 14, and 17.5 kW. These cooling loads are suitable for a typical house or a small business building in Caribbean Islands. Computer simulations were conducted to evaluate the overall system’s performance when subjected to dynamic cooling loads. Within the computer model, heat and mass balances are conducted on each component of the system, including the solar collectors, the air-cooled condenser, and the air-cooled absorber. Comparisons are made with an absorption air conditioning system that uses a cooling tower with conventional flat plate collectors instead of air-cooled and PCM components. Useful information about physical dimensions of collectors, number of collectors needed, and efficiency of the overall system is presented.
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Stone, Kenneth W., Eric Leingang, Bob Liden, Erik Ellis, Tariq Sattar, Dr Thomas Mancini, and Hans Nelving. "SES/Boeing Dish Stirling System Operation." In ASME 2001 Solar Engineering: International Solar Energy Conference (FORUM 2001: Solar Energy — The Power to Choose). American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/sed2001-114.

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Abstract The data presented in this paper document the operation and service requirements for the 25 kW Stirling Energy Systems (SES)/Boeing Dish Stirling system. Among the information presented are the hydrogen used by the system, oil and water service requirements, and reliability data in the form of a component outage tree. Also presented are discussions of the problems that have occurred during the thousands of hours of on-sun operation of two dish/Stirling systems, which comprise two solar concentrators and three power conversion units (PCUs). We have identified a number changes to the design of the 15-year-old dish/Stirling system. However, based on the performance of the systems and the data presented in this paper, there appear to be no serious obstacles to the commercialization of this technology.
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Stone, Kenneth W., Vahan Garboushian, and Herb Hayden. "Design and Performance of the Amonix High Concentration Solar PV System." In ASME Solar 2002: International Solar Energy Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/sed2002-1047.

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Amonix has designed, manufactured, installed, and tested over 500 kW of high concentrating PV systems based around a concentrating silicon cell that set a new world efficiency record in 1992. This paper describes the development of this product as well as the physical and operating characteristics of the system. The operating characteristics that make this system attractive for grid, distributed, and off-grid are discussed. Data is presented that demonstrates the high daily power generating capability and the energy performance of the concentrating PV system. Other attributes of the system are also discussed such as the automatic/unattended operation, the short installation time, etc. An array installed at Pomona, CA is described, it has operated unattended for over 3 years and is still producing power today.
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Irudayaraj, Prashanth, Yitao Liu, Feng Zhou, Roger J. Jiao, and Joseph N. Goodman. "A Case Study of Modeling and Simulation for Manufacturing, Installation, and Maintenance of Solar Power Systems." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35248.

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Solar power systems are becoming increasingly popular due to the fact that solar power can offer time and money saving solutions for off-grid and grid-connected homes, cabins, and businesses with clean and affordable energy. However, there are still significant opportunities to reduce the cost of solar power systems by optimizing system design. We employ system modeling and simulation methods to compare a commercial rooftop solar system with a new concept for the same application, namely Mega Module system. In order to accomplish this, a solar power system’s lifecycle is divided into three phases, namely manufacturing, installation, and maintenance. Specifically, a SysML-based conceptual model was first constructed, based on which, Arena simulation models were built for three phases of the two systems. Then, we performed input analysis on data collected onsite for the two systems, and output analysis of the theoretical seconds/watt of all three phases based on reasonable assumptions. The results of the simulation study indicate that although it increases the manufacturing time, the Mega Module system saves a significant amount of time in the installation phase and a relatively small amount of time in the maintenance phase, and thus can be more cost-effective in the long term. The case study further demonstrates the feasibility and potential to reduce costs of product-service systems by quick installation and optimization using system modeling and simulation methods.
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Reports on the topic "Systeme solaire"

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Saini, Puneet, and Wolfgang Weiss. Design Guidelines. IEA SHC Task 65, September 2023. http://dx.doi.org/10.18777/ieashc-task65-2023-0006.

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This document is the final report for activity B2 “Design guidelines” of the IEA SHC Task 65 “Solar Cooling for the Sunbelt regions”. It presents the collection of design and system integration guidelines for solar cooling projects. For this purpose, a comprehensive questionnaire was created that goes into detail about various solar cooling components, design, sizing and other sub-systems such as heat rejection unit and cold distribution system. Data from 10 case studies are collected and presented showing the performance of solar cooling systems with varying boundary conditions. Additionally, three different case studies, each with their own scope and unique characteristics, are discussed.
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Wallace, Sean, Scott Lux, Constandinos Mitsingas, Irene Andsager, and Tapan Patel. Performance testing and modeling of a transpired ventilation preheat solar wall : performance evaluation of facilities at Fort Drum, NY, and Kansas Air National Guard, Topeka, KS. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/42000.

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This work performed measurement and verification of installed, operational solar wall systems at Fort Drum, NY, and Forbes Field, Air National Guard, Topeka, KS. Actual annual savings were compared estimated savings generated by a solar wall modeling tool (RETScreen). A comparison with the RETScreen modeling tool shows that the measured actively heated air provided by the solar wall provides 57% more heat than the RETScreen tool predicted, after accounting for boiler efficiency. The solar wall at Fort Drum yields a net savings of $851/yr, for a simple payback of 146 years and a SIR of 0.16. RETScreen models indicate that the solar wall system at Forbes Field, Kansas Air National Guard, Topeka, KS saves $9,350/yr, for a simple payback of 58.8 years and a SIR of 0.34. Although results showed that, due to low natural gas prices, the Fort Drum system was not economically viable, it was recommended that the system still be used to meet renewable energy and fossil fuel reduction goals. The current system becomes economical (SIR 1.00) at a natural gas rate of $16.00/MMBTU or $1.60 /therm.
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Gurtner, Richard, Tobias Schmetzer, and Manuel Riepl. Solar Cooling for the Sunbelt Regions: Climatic Conditions & Applications. IEA SHC Task 65, June 2023. http://dx.doi.org/10.18777/ieashc-task65-2023-0002.

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In general, climatic conditions and typical applications for (solar) cooling heavily depend on the location. In order to be able to deduce regionally specific requirements for solar cooling systems, it is therefore obvious to use geographical data. To process such data a Geographic information system (GIS) is needed. GIS are able to capture, store, check, and display data related to positions on Earth’s surface. Most geographical data relevant for this application are already available from various sources, such as solar radiation data, climatic data, population data etc.
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Garceau, Sean. PR-283-20207-R01 Field Trial of Solar Turbines Methane Emissions Reduction Solution for Gas Compressors. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), July 2022. http://dx.doi.org/10.55274/r0012230.

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The Methane Emissions Reduction solution designed by Solar Turbines was installed and evaluated at the Berkshire Hathaway Energy (Dominion) Chambersburg station in Pennsylvania, USA. Solar Turbines supplied a dry seal recompression (DSR) system and a process vent recompression (PVR) system at the station. The objective of the field trial was to evaluate the durability of this new system, compare the performance in the field to simulation models and as needed make improvements to the mechanical design and/or software control. The dry gas seal recompression system was installed and connected to a Solar Turbines C402 process compressor dry seal primary vent to capture, hold, and reuse dry seal gas leakage. The process vent recompression system was connected to the C402 compressor discharge piping to capture the process gas during pressurized hold and inject it back into the suction line in lieu of venting the gas to atmosphere. Operational data for the two systems was collected for 22-months starting in January 2020 and ending in October 2021. Data was collected at different sample rates; high speed (10ms, 100ms), 1 second, 10 seconds, and 1 hour through historical logs and analyzed for this period of time to evaluate the durability of the systems. Several enhancements were implemented and validated. Data collected during a 12-month period showed that a recycle line and volume bottles on the suction of the compressor helped optimize the performance of the compressor and increased durability. In addition, the use of the auxiliary drain recapture tank on the DSR system allowed for the achievement of a capture rate greater than 99% and resolved issues associated with leakage back into the compressor's first stage inlet during the charge period of the cycle.
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Stein, J., and G. Maugeri. Fact Sheet: Bifacial Tracking. International Energy Agency Photovoltaic Power Systems Programme, 2024. http://dx.doi.org/10.69766/ulmk1464.

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The Task 13 Fact Sheet on bifacial photovoltaic (PV) modules and advanced tracking systems highlights how these technologies revolutionize solar energy production. It details how bifacial PV modules, which capture light from both sides, paired with single-axis trackers, increase energy output by up to 35% compared to conventional systems. These systems achieve the lowest Levelized Cost of Electricity (LCOE) for over 90% of global markets, demonstrating rapid market growth and cost-effectiveness. Additionally, the fact sheet covers market development and provides an overview of system designs for optimal yield and value, including backtracking and adjustments for complex terrain and weather conditions.
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Weiss, Wolfgang, Uli Jakob, Monika Weiss, and Boaventura Cuamba. Standardized Solar Cooling Kits. IEA SHC Task 65, April 2024. http://dx.doi.org/10.18777/ieashc-task65-2024-0006.

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This document is the final report of activities B4, “Standardized solar cooling kits” of the IEA SHC Task 65, “Solar Cooling for the Sunbelt Regions. The report presents experiences from 11 component and/or system suppliers of solar cooling kits, which adapted/investigated their products/concepts for Sunbelt region conditions. Moreover, several findings on system adaptations for Sunbelt regions are collected and analyzed from manufacturers, equipment providers, solar system providers and researchers.
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Kong, Weiqiang, Simon Furbo, and Jianhua Fan. Simulation and design of collector array units within large systems. IEA SHC Task 55, October 2019. http://dx.doi.org/10.18777/ieashc-task55-2019-0005.

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Solar collectors are the core components of solar district heating plants. Annual solar heat yield of solar heating plants on average is around 400-500 kWh/m2 in Denmark. Most solar collectors in the large solar district heating plants in Denmark are ground-mounted flat plate collectors. Arcon-Sunmark A/S is the main manufacturer of the large flat plate collectors for district heating in Denmark. Arcon-Sunmark A/S has installed more than 80% of the world’s large solar heating plants connected to district heating networks.
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Bloomfield, H. S. Small space reactor power systems for unmanned solar system exploration missions. Office of Scientific and Technical Information (OSTI), December 1987. http://dx.doi.org/10.2172/5431889.

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Haselbacher, Andreas, Michel Arnal, Maurizio Barbato, Alexander Fuchs, Jared Garrison, Turhan Demiray, Philipp Jenny, et al. Joint synthesis “Electricity storage via adiabatic air compression” of the NRP “Energy”. Swiss National Science Foundation (SNSF), January 2020. http://dx.doi.org/10.46446/publication_nrp70_nrp71.2020.3.en.

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La fermeture des centrales nucléaires et le développement de l’énergie solaire et éolienne rendent la production d’électricité plus volatile. De nouveaux systèmes de stockage sont nécessaires pour s’assurer que l’électricité est disponible au moment où elle est nécessaire. Le stockage adiabatique d’air comprimé représente une technologie prometteuse. Il utilise l’excédent de production des installations solaires et éoliennes pour comprimer l’air ambiant et le stocker dans une cavité souterraine. Au besoin, l’air comprimé est à nouveau détendu et entraîne alors une turbine qui produit de l’électricité. En tirant profit de la chaleur générée lors de la compression, cette technologie atteint un rendement de 65 à 75 %, ce qui est semblable à celui obtenu avec l’accumulation par pompage. En termes de potentiel d’émission de gaz à effet de serre et de dommages aux écosystèmes, la compatibilité environnementale des réservoirs d’air comprimé est également comparable à celle des systèmes à accumulation par pompage. Les réservoirs d’air comprimé sont techniquement réalisables. Les composants importants, comme les turbomachines et les accumulateurs thermiques, sont déjà disponibles sur le marché ou ont été testés dans une installation pilote. La construction de cavités bénéficie de l’expérience acquise lors de la réalisation de tunnels et de cavernes. Les réservoirs adiabatiques d’air comprimé constituent par conséquent une solution de stockage efficace, écologique et techniquement réalisable. En raison de leurs coûts d’investissement élevés et du manque de clarté qui entoure leur cadre économique et juridique, leur rentabilité demeure toutefois incertaine. Cela complique également le financement d’une installation de démonstration.
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Haselbacher, Andreas, Michel Arnal, Maurizio Barbato, Alexander Fuchs, Jared Garrison, Turhan Demiray, Philipp Jenny, et al. Synthèse conjointe «Stockage d’électricité par compression adiabatique d’air» du PNR «Energie». Swiss National Science Foundation (SNSF), January 2020. http://dx.doi.org/10.46446/publication_pnr70_pnr71.2020.3.fr.

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La fermeture des centrales nucléaires et le développement de l’énergie solaire et éolienne rendent la production d’électricité plus volatile. De nouveaux systèmes de stockage sont nécessaires pour s’assurer que l’électricité est disponible au moment où elle est nécessaire. Le stockage adiabatique d’air comprimé représente une technologie prometteuse. Il utilise l’excédent de production des installations solaires et éoliennes pour comprimer l’air ambiant et le stocker dans une cavité souterraine. Au besoin, l’air comprimé est à nouveau détendu et entraîne alors une turbine qui produit de l’électricité. En tirant profit de la chaleur générée lors de la compression, cette technologie atteint un rendement de 65 à 75 %, ce qui est semblable à celui obtenu avec l’accumulation par pompage. En termes de potentiel d’émission de gaz à effet de serre et de dommages aux écosystèmes, la compatibilité environnementale des réservoirs d’air comprimé est également comparable à celle des systèmes à accumulation par pompage. Les réservoirs d’air comprimé sont techniquement réalisables. Les composants importants, comme les turbomachines et les accumulateurs thermiques, sont déjà disponibles sur le marché ou ont été testés dans une installation pilote. La construction de cavités bénéficie de l’expérience acquise lors de la réalisation de tunnels et de cavernes. Les réservoirs adiabatiques d’air comprimé constituent par conséquent une solution de stockage efficace, écologique et techniquement réalisable. En raison de leurs coûts d’investissement élevés et du manque de clarté qui entoure leur cadre économique et juridique, leur rentabilité demeure toutefois incertaine. Cela complique également le financement d’une installation de démonstration.
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