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Artykuły w czasopismach na temat "Bois – Environnement"
Mbikay Kadima, Pierrot. "Enquête sur l’impact socio-environnemental de l’utilisation de bois et stratégies de remédiation dans les ménages de la ville de Kisangani (Province de la Tshopo) en République Démocratique du Congo". Revue Congolaise des Sciences & Technologies 2, nr 4 (10.02.2022): 516–23. http://dx.doi.org/10.59228/rcst.023.v2.i4.58.
Pełny tekst źródłaRandriambololona, Hery, Frédéric Dubois i Christophe Petit. "Modélisation du comportement mécanique différé du bois en environnement variable". Revue Française de Génie Civil 6, nr 7-8 (styczeń 2002): 1333–57. http://dx.doi.org/10.1080/12795119.2002.9692412.
Pełny tekst źródłaOffice national des forêts, Département Commercial Bois. "Les ventes de bois des forêts publiques en 2021". Revue forestière française 73, nr 6 (27.10.2022): 665–79. http://dx.doi.org/10.20870/revforfr.2021.7207.
Pełny tekst źródłaRavix, André-Laurent. "Les comportements d'innovation dans l'artisanat de production industrielle". Revue internationale P.M.E. 1, nr 3-4 (16.02.2012): 277–94. http://dx.doi.org/10.7202/1007885ar.
Pełny tekst źródłaDalo, Patrice. "Quelle vision des forêts pour les défenseurs de l’environnement par rapport aux effets du réchauffement climatique ?" Revue forestière française 74, nr 2 (23.06.2023): 223–27. http://dx.doi.org/10.20870/revforfr.2023.7597.
Pełny tekst źródłaOwona Ndongo, Pierre André, Régis Peltier, Ibrahim Linjouom, Dominique Louppe, Georges Smektala, Vincent Béligné, Raphaël Njoukam, Bernard Tieche i Lucie Félicité Temgoua. "Plantations de bois d'oeuvre en zone équatoriale africaine : cas de l'arboretum de l'Enef de Mbalmayo au sud du Cameroun". BOIS & FORETS DES TROPIQUES 299, nr 299 (1.03.2009): 37. http://dx.doi.org/10.19182/bft2009.299.a20421.
Pełny tekst źródłaBellande, Alex. "Haïti dans le marché mondial du bois aux 19ème et 20ème siècles : Commerce et environnement". Journal of Haitian Studies 22, nr 1 (2016): 130–46. http://dx.doi.org/10.1353/jhs.2016.0030.
Pełny tekst źródłaFaliarivola, Manoa L., Aristide Andrianarimisa, Marie Jeanne Raherilalao i Steven M. Goodman. "Diversité des Arthropodes de sous-bois des forêts sèches de Madagascar". Bulletin de la Société entomologique de France 127, nr 3 (2022): 233–50. http://dx.doi.org/10.32475/bsef_2194.
Pełny tekst źródłaArsène, EWOSSAKA, KOUBOUANA Felix, AYESSA LECKOUNDZOU i MAYIKA Ivan Arnold. "Processus Technologique de Fabrication Du Contre-Plaque". Forestry & Agriculture Review 2, nr 1 (4.02.2021): 37–51. http://dx.doi.org/10.47285/far.v2i1.72.
Pełny tekst źródłaSuma, Sophie. "Que nous dit la maison de La petite maison dans la prairie ?" Radar, nr 7 (15.06.2022): 107–14. http://dx.doi.org/10.57086/radar.508.
Pełny tekst źródłaRozprawy doktorskie na temat "Bois – Environnement"
Merakeb, Seddik. "Modélisation des structures en bois en environnement variable". Limoges, 2006. https://aurore.unilim.fr/theses/nxfile/default/94578804-9926-46e0-8969-67a4656612ce/blobholder:0/2006LIMO0031.pdf.
Pełny tekst źródłaMechanical properties of timber constructions depend strongly on moisture content state. In this context, it is shown a mecanosorptive coupling. This climatic environment aspect imposes a hygroscopic behavior modeling in order to estimate moisture content variations by integrating the heat and mass transfer processes. If the effect of moisture content on the mechanical behavior has been studied in the literature, this work enables us to precise effects of mechanical state on the transfer laws by taking into account boundary conditions and diffusion properties. In this context, we propose a thermodynamic and experimental approaches which allow to introduce a realistic coupled transfer algorithm in a finite element software
Koumbi, Mounanga Thierry. "Tensioactifs antioxydants originaux pour la formulation de produits de préservation du bois". Electronic Thesis or Diss., Nancy 1, 2008. http://www.theses.fr/2008NAN10084.
Pełny tekst źródłaThe presented work concerns the synthesis and characterization of amphipilic antioxidant compounds for the formulation of wood preservatives allowing the preparation of waterborne formulations to reduce rejections of VOCs answering to increasing environmental pressures. Based on preliminary studies showing synergistical effects between fungicides and antioxidants, the aim of this study was to design compounds possessing surfactant and antioxidant properties allowing the formulation in water of insoluble organic fungicides and to reduce the necessary quantity of biocide due to synergistical effects with antioxidant properties. Three families of amphiphilic compounds were synthesized. The first one corresponds to hindered phenol derivatives, the second to hindered amine and the third one to quats “with green label” derived from ascorbic acid. Surfactant and antioxidant properties of all new synthesized compounds have been characterized. The use of aqueous formulations of propiconazole prepared from these new surface active agents allows to increase beech wood durability exposed to the white rot fungus Coriolus versicolor. Fungal growth inhibition tests realized on malt agar medium with various alkylammonium ascorbates presenting different alkyl chain’s lengths indicated an important growth inhibition of the mycelium for some of the tested products correlated at their amphiphilic properties
Pelletier, Chloé. "Analyse environnementale et économique des filières bois-énergie". Electronic Thesis or Diss., Université de Lorraine, 2017. http://www.theses.fr/2017LORR0331.
Pełny tekst źródłaThe objective of this thesis is to conduct the environmental and economic analysis of several wood-to-energy production chains based on various wood combustion technologies. The material and energy balances of the production chains are determined with modeling of forest growth and of wood combustion. The wood combustion models use the emission factors from real-scale experimental tests on stoves and boilers. Forest growth is modeled for maritime pine and beech plantations, according to several forest management schemes. The data on the harvest, transformation, and transport steps, as well as the economic data, were taken from the literature. The environmental analysis compares the impacts calculated by two methods: ReCiPe and CML 2001. A dynamic analysis of the “climate change” impact complements the discussion on the environmental impacts of energy wood. Finally, we open a broader perspective with modeling of land use and production costs of bioenergy on a global scale. The results of the Life Cycle Analysis show the importance of both combustion quality (linked to combustion technology), and the transformation and transport steps. For instance, pellet stoves and boilers have excellent efficiencies, but suffer from the consumption of fossil fuels to dry the biomass. These technologies are also much more expensive to buy than log stoves or boilers. The dynamic analysis shows that the intensification of wood production via the shortening of growth cycles leads to higher impacts that are not completely offset by the higher production rate
Lebatteux, Muriel. "Durée de vie de poutres en bois reconstitué soumises à un environnement climatique naturel". Bordeaux 1, 1997. http://www.theses.fr/1997BOR10555.
Pełny tekst źródłaPelletier, Chloé. "Analyse environnementale et économique des filières bois-énergie". Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0331/document.
Pełny tekst źródłaThe objective of this thesis is to conduct the environmental and economic analysis of several wood-to-energy production chains based on various wood combustion technologies. The material and energy balances of the production chains are determined with modeling of forest growth and of wood combustion. The wood combustion models use the emission factors from real-scale experimental tests on stoves and boilers. Forest growth is modeled for maritime pine and beech plantations, according to several forest management schemes. The data on the harvest, transformation, and transport steps, as well as the economic data, were taken from the literature. The environmental analysis compares the impacts calculated by two methods: ReCiPe and CML 2001. A dynamic analysis of the “climate change” impact complements the discussion on the environmental impacts of energy wood. Finally, we open a broader perspective with modeling of land use and production costs of bioenergy on a global scale. The results of the Life Cycle Analysis show the importance of both combustion quality (linked to combustion technology), and the transformation and transport steps. For instance, pellet stoves and boilers have excellent efficiencies, but suffer from the consumption of fossil fuels to dry the biomass. These technologies are also much more expensive to buy than log stoves or boilers. The dynamic analysis shows that the intensification of wood production via the shortening of growth cycles leads to higher impacts that are not completely offset by the higher production rate
Gherardi, Hein Paulo Ricardo. "Contrôle génétique et environnemental de l'angle des microfibrilles dans le bois d'Eucalyptus : effets sur les propriétés du bois et implication pour la sélection". Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2011. http://tel.archives-ouvertes.fr/tel-00623042.
Pełny tekst źródłaSaedlou, Nima. "Apports de la xylologie à l'archéologie : étude des objets en bois gallo-romains de la ville de Saintes (Charente-Maritime, France)". Paris 6, 2002. http://www.theses.fr/2002PA066327.
Pełny tekst źródłaFrançois, Jessica. "Modélisation et évaluation environnementale des filières de cogénération par combustion et gazéification du bois". Electronic Thesis or Diss., Université de Lorraine, 2014. http://www.theses.fr/2014LORR0071.
Pełny tekst źródłaBiomass is one of the most promising renewable energy source in Europe. Its use as a substitute to fossil energy is expected to mitigate climate change. However, potential drawbacks are also feared with large scale development. In order to assess the environmental impacts of the biomass-to-energy chain, we firstly developed a model of the bioenergy system, from the forest to the energy production. We focused on two biomass power plants for combined heat and power (CHP) production: one is based on the conventional direct combustion process while the other is based on the more advanced gasification process. Gasification offers higher electrical efficiency, but its development is still facing technical difficulties. In case of the gasification process, we defined the best operating conditions regarding energetic and exergetic efficiencies, as well as the syngas quality requirements. Secondly, we calculated the carbon and mineral flows taken from the forest through energy wood harvesting, along with the forested area required to feed the CHP plant. The other resources and emissions related to the plant operation were also predicted. We observed that more extensive forestry practices led to an increase in the mineral exports. Finally, we evaluated the environmental performance of the two biomass CHP plants using life cycle assessment (LCA). Within French energy context, we found that both CHP technologies had very similar impacts with a slight advantage toward the combustion process. It appears of particular benefit to replace current fossil energy systems with biomass CHP plants to reduce climate change
Audigeos, Delhine. "Relations entre diversité génétique et environnement : quels sont les processus évolutifs mis en jeu? : cas d'une espèce d'arbre tropical, Eperua falcata Aublet". Antilles-Guyane, 2010. http://www.theses.fr/2010AGUY0354.
Pełny tekst źródłaThe tropical forest is characterized by a strong specificdiversity and an elevated level of competition for the space occupation especially at the youthful stages. The occupation strategies of space are related to the methods of seeds dispersion, but probabilities of seed survival until the reproductive age rely on their potential of adaptation to their environment. In this context, i was interested in studying Eperua falcata, one of the dominant tree species in fFrench Guiana, which shows a water-soil-content-related ecological comportment. For this purpose, i decided to explore and compare genetic diversity in candidate genes with known functions (aquaporins, catalase and farnesyltransferase) to the one in randomly picked genomic sequences. First, i described aquaporins geneticdiversity at a regional scale; then i tested interactions between genetic diversity (neutral and adaptative) and the environment (water-soil content) and finally i performed the phylogeographic study of E. Falcata at French Guiana scale
Manfoumbi, Boussougou Nicaise. "Contribution à l’adaptation de l’Eurocode 5 aux essences tropicales dans leur environnement". Limoges, 2012. https://aurore.unilim.fr/theses/nxfile/default/0551f36f-4466-48f1-8fa4-7f52805a085f/blobholder:0/2012LIMO4005.pdf.
Pełny tekst źródłaThe present report makes a contribution to adapt Eurocode 5 for timber constructions using tropical hardwoods in tropical climate. This approach requests to well know the mechanical behavior in variable environment. In a first time, an experimental study is presented for decoupling postponed phenomena from a longitudinal four-point creep bending, under controlled climate on small samples by measuring upper and lower deflections. The result of this original experimental protocol allows separating and illustrating different phenomena met on creep evolution of timber beams: swelling-shrinkage effects, hygro-lock effect, orthotropic mechanosorption and viscoelasticity. In second time, longitudinal four-point creep bending tests were realised, in the scale of structure, in tropical atmosphere to Franceville in Gabon, in two tropical hardwoods: Moabi and Ozigo. The experimental device was led on three sites corresponding to three different climatic environments according to specific service classes of Eurocode 5: an atmosphere temporarily air-conditioned, a sheltered outside atmosphere and an outside atmosphere non-sheltered. The obtained results show that tropical wood have a deferred behaviour stressed by the strong variation of humidity for little significant temperature variations. To define new classes of service appropriated for the tropical atmospheres, it is important to characterize the diffusion process. Following this objective, a complete experimental device was led, in the scale of material, in order to determinate the sorption isotherms and diffusion parameters needed to study the mechano-sorptive behavior in real condition. In a last time, others tests of creep and relaxation, in the scale of material, were realized under controlled atmosphere, in the same species. This study, led in low and high relative humidity, shows that the creep is more significant for the wet beams and the recovery is more important when beams are dry. A modeling of the creep-recovery under low and high relative humidity is proposed and allows the determination of the viscoelastic parameters of the studied beams. At the end, a comparative study of creep coefficients, obtained on the laboratory samples and the beams in real environment, shows that the mechanic-sorptive effects are dominating, with an importance of longitudinal swelling-shrinkage effects, not insignificant in the scale of structure
Książki na temat "Bois – Environnement"
Sow, Hamed. Le bois-énergie au Sahel: Environnement et développement. Paris: ACCT, 1990.
Znajdź pełny tekst źródłaLawali, Elhadji Mahamane Mahamane, Permanent Inter-State Committee for Drought Control in the Sahel. i Programme régional de promotion des énergies domestiques et alternatives au Sahel., red. Bois-énergie, lutte contre la pauvreté et environnement au Sahel / [Elhadji Mahamane, Mahamane Lawali ... et al.]. [Burkina Faso]: [CILSS : Programme régional de promotion des énergies domestiques et alternatives au Sahel], 2005.
Znajdź pełny tekst źródłaRavelondramamy, Fridonatien Peguy. L'Utilisation du charbon de bois: L'impact socio-économique et environnemental. Cas de la commune urbaine d’Antsohihy. Saarbrücken: Éditions universitaires européennes, 2017.
Znajdź pełny tekst źródłaVillages, maisons et châteaux du Moyen Âge et de la Renaissance en Franche-Comté: Comté et duché de Bourgogne, comté de Montbéliard, Jura Suisse (principauté épiscopale de Bâle) : actes du colloque de Vallerois-le-Bois organisé par Franche-Bourgogne, groupe de recherches historiques sur le comté de Bourgogne, XI-XVIIe siècles, Laboratoire chrono-environnement, Université de Franche-Comté, UMR CNRS 6249. Vy-lès-Filain: Franche-Bourgogne, 2014.
Znajdź pełny tekst źródłaC, Millington A., i Townshend John, red. Biomass assessment. London: Earthscan, 2009.
Znajdź pełny tekst źródłaNuclear juggernaut: The transport of radioactive materials. London: Earthscan, 2009.
Znajdź pełny tekst źródłaD'ORLÉANS, Universite. Risque Environnemental et Gain économique: Les Récoltes Intensives de Bois-énergie. Independently Published, 2022.
Znajdź pełny tekst źródłaBiochar for Environmental Management: Science, Technology and Implementation. Routledge, 2015.
Znajdź pełny tekst źródłaBiochar for Environmental Management. Routledge, 2015.
Znajdź pełny tekst źródłaLehmann, Johannes, i Stephen Joseph. Biochar for Environmental Management: Science, Technology and Implementation. Taylor & Francis Group, 2015.
Znajdź pełny tekst źródłaCzęści książek na temat "Bois – Environnement"
Reveyron, Nicolas. "Le bois d’œuvre dans le chantier médiéval. Approche de l’archéologie d’élévation". W Le village médiéval et son environnement, 221–35. Éditions de la Sorbonne, 1998. http://dx.doi.org/10.4000/books.psorbonne.23559.
Pełny tekst źródłaNacoulma, Boukaré. "Alphabétisation et défis du développement durable : cas du site d’orpaillage de Boungou au Burkina Faso". W Didactique des langues, plurilinguisme et sciences sociales en Afrique francophone : quelles places à l’interdisciplinarité ?, 177–91. Observatoire européen du plurilinguisme, 2020. http://dx.doi.org/10.3917/oep.agbef.2020.01.0177.
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