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Artykuły w czasopismach na temat "Dioxyde de carbone – Environnement – Luxembourg"
Sène, Matar, Maurice Ndeye i Alpha Oumar Diallo. "Le carbone 14 (14C) un traceur idéal pour la surveillance de la pollution atmosphérique en dioxyde de carbone (CO2) anthropogénique dans la zone de dakar". Journal de Physique de la SOAPHYS 2, nr 2 (12.05.2021): C20A18–1—C20A18–8. http://dx.doi.org/10.46411/jpsoaphys.2020.02.18.
Pełny tekst źródłaAhiwe, E. U., H. O. Obikaonu, O. E. Kadurumba, T. C. Iwuji, O. O. Emenalom i E. B. Etuk. "Climate change and youth unemployment challenges in Nigeria: The poultry production option". Nigerian Journal of Animal Production 48, nr 4 (8.03.2021): 107–20. http://dx.doi.org/10.51791/njap.v48i4.2992.
Pełny tekst źródłaRozprawy doktorskie na temat "Dioxyde de carbone – Environnement – Luxembourg"
Charif, Omar. "Modelling and simulating individual's mobility : case study of Luxembourg and its greater region". Electronic Thesis or Diss., Compiègne, 2013. http://www.theses.fr/2013COMP2130.
Pełny tekst źródłaIn the last century, transport and in particular the use of private cars has emerged as a major source of CO2 emissions (second behinf energy production). Several cities in the world have put in place strategies to deal with this problem and to reduce its adverse enviromental impacts. Some strategies could not achieve their objectives, and had negative reactions from individuals. The ail of this PhD thesis is to propose a methodology and a platform for modelling and simulating people mobility systems. The developed plat form is, then, used to implement land use and transportation scenarios and strategies in a virtual world to study their impact on human behavior in terms of mobility. To develop this platform, we propose a hybrid model, combining cellular automata and multi-agent systems, capable of handling the complexity of the mobility system able to present it at various spatial ans temporal scales
Charif, Omar. "Modelling and simulating individual's mobility : case study of Luxembourg and its greater region". Thesis, Compiègne, 2013. http://www.theses.fr/2013COMP2130.
Pełny tekst źródłaIn the last century, transport and in particular the use of private cars has emerged as a major source of CO2 emissions (second behinf energy production). Several cities in the world have put in place strategies to deal with this problem and to reduce its adverse enviromental impacts. Some strategies could not achieve their objectives, and had negative reactions from individuals. The ail of this PhD thesis is to propose a methodology and a platform for modelling and simulating people mobility systems. The developed plat form is, then, used to implement land use and transportation scenarios and strategies in a virtual world to study their impact on human behavior in terms of mobility. To develop this platform, we propose a hybrid model, combining cellular automata and multi-agent systems, capable of handling the complexity of the mobility system able to present it at various spatial ans temporal scales
Sarry, Frédéric. "Contribution à la caractérisation de capteurs à base d'oxyde d'étain : application à l'analyse d'une atmosphère gazeuse conditionnée". Metz, 1998. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/1998/Sarry.Frederic.SMZ9846.pdf.
Pełny tekst źródłaDue 10 to environmental problems, there is a great effort on gas sensor research and development which may give qualitative and quantitative analysis. Our goal is to study a particular atmosphere composed of forane R134a, a refrigerant gas, and carbon dioxide in dry synthetic air. We have chose to use Figaro type gas sensor based on a tin dioxide sensitive layer because of the large number of detectable gases, their easy use, their large commercialisation and their low cost. These sensors are merged in an array so as to reduce their lack of selectivity and their drift effect. The first part of this study is dedicated to the choice of the experimental set-up and protocol and the characterization of three types of TGS sensors under pure gases or mixtures. This has confirmed the antagonist effects of the two studied gases and has shown two principal criteria : the steady-state conductance and the slope of the conductance. Ln a second part, experimental data are analysed with pattern recognition method as PCA or DFA. This confirm the choice of the. Two criteria, show the similarity of sensors of the same type and determine the gas nature. It is so possible to discriminate the gases in our conditionned atmosphere with an array of three different type gas and a discriminant function analysis
Kang, Seung-Jin. "L'analyse des effets économiques de politiques d'environnement par un modèle d'équilibre général appliqué : le cas de la Corée du Sud". Grenoble 2, 1999. http://www.theses.fr/1999GRE21025.
Pełny tekst źródłaChen, Yushu. "Application de l'équation PC-SAFT à la capture du dioxyde de carbone et à la désulfuration des essences". Electronic Thesis or Diss., Université de Lorraine, 2013. http://www.theses.fr/2013LORR0092.
Pełny tekst źródłaThe replacement of conventional organic solvents by a new generation of solvents less toxic, less flammable and less polluting is a major challenge for the chemical industry. Ionic liquids have been widely promoted as interesting substitutes for traditional solvents. The purpose of this work is to evaluate the behavior of ionic liquids in the presence of greenhouse gases (CO2, CH4 and N2O) or organic compounds. Firstly, a theoretical study presents the performance of the thermodynamic model PC-SAFT in the representation of vapor-liquid equilibrium of systems containing ionic liquids and carbon dioxide. Then, the solubility study of methane, carbon dioxide and nitrous oxide in various ionic liquids was performed at high or low pressure. The group contribution concept is proposed in this study in order to predict the Henry's law constant of carbon dioxide in ionic liquids. Finally, a study on the vapor-liquid equilibrium of binary systems encountered in gasoline desulfurization was carried out. Experimental data were used to evaluate the performance of PC-SAFT equation of state to represent phase equilibrium of systems {sulfur / aromatic compounds + ionic liquid}
Benali, Omar. "Étude des intéractions entre un catalyseur solide et son environnement réactionnel : Cas de l'oxydation du propène sur oxydes de cuivre". Nancy 1, 1987. http://www.theses.fr/1987NAN10271.
Pełny tekst źródłaShen, Zhiyang. "Essays on Green Productivity". Electronic Thesis or Diss., Lille 1, 2016. http://www.theses.fr/2016LIL12004.
Pełny tekst źródłaAs economic development and population growth, human’s production activity lays a heavy burden on the natural environment. In order to maintain sustainable development, investigating the relationship between economic development and environmental impact has received much attention. This thesis takes into account undesirable factors in production technology and tries to integrate the negative externality of carbon emissions into the measurement of economic performance, referred to as green productivity. This thesis employs a nonparametric estimation approach with directional distance function to analyze environmental efficiency, total factor productivity, and carbon shadow prices among different developed and developing countries at the macro level. We propose new contributions to the measurement and decomposition of productivity indices which capture environmental efficiency. Based on empirical results, we discuss the current environmental regulations and economic policies among countries, to provide useful information for decision and policy makers from an economic point of view
Camara, Mamoudou. "Croissance économique et impact environnemental : le découplage est-il possible ?" Thesis, Lille 1, 2015. http://www.theses.fr/2015LIL12004/document.
Pełny tekst źródłaUsing both theoretical and empirical approaches, this thesis aims to bring a new light on the link between economic growth and environment. It is divided into two parts. The first part focuses on a reconsideration of the decoupling question. The study of the evolution of the environmental problematic in economic theory, in the first chapter, shows that this debate is not new, and has not remained static. Then, in the second chapter, after to have shown the complexity (particularly its multidimensionality and the limits of approaches to measure the decoupling) of the decoupling concept, our study with a new empirical approach on several countries seems to show the evidence of decoupling in the case of certain countries. The second part consists to explain the decoupling. The third chapter which is focused on analysis of the main decoupling determinants, allowed us to identify three determinants (the development level, the structure of the economy and the socioeconomic relationship to the environment), and also to show that their impact on the decoupling is limited in the time. The last chapter, which is an extension of the third chapter, focuses on analysis of the decoupling factors in a “regulationniste” perspective. With this approach, our thesis has tried to show the importance of the degree of ecological concerns and the quality of institutions in a country to achieve decoupling. Thus, through these four chapters, this thesis seems to show that the possibilities to achieve decoupling are tributary of several factors, and also that decoupling, even in the case of CO2, is sometimes possible, but not permanently
Tran, Thi Thanh Xuan. "Essays on trade, growth and the environment". Thesis, Rennes 1, 2017. http://www.theses.fr/2017REN1G005/document.
Pełny tekst źródłaThe aim of this thesis is to measure the impact of international trade on growth and carbon dioxide emissions using a sample covering 83-104 countries over the period 1971-2010. The empirical analysis of the income and growth equation in the first chapter shows that the trade-growth relationship differs across regions. Especially in Africa, a continent characterized by a small network trade. The second chapter develops the results and examines the network analysis by taking into account the topological characteristic of a country in world network trade. The results show that the impact of trade on growth depends on the country's commercial network and that this impact increases with the extension of the network. In a second part, we analyze the directly and indirectly channels through which trade openness affect the environment. The analysis in the third chapter shows that the effect of trade on emissions of pollutants differs between developed and developing countries. The last chapter focuses on the effects of trade on pollutant emissions through trade specialization. According to the estimation results, for high-income countries, the effect of trade is greater if they specialize in capital-intensive sectors and decreases with an increase in per capita income. For middle- and low-income countries, trade has a positive effect on pollutant emissions, this effect is impeded if they specialize in labor-intensive industries and increase with an increase in per capita income
Cardinaud, Guillemette. "Liants ternaires à base d'argile calcinée : Etude des mécanismes de structuration, optimisation mécanique et durabilité". Electronic Thesis or Diss., Ecole centrale de Nantes, 2021. http://www.theses.fr/2021ECDN0018.
Pełny tekst źródłaThe reduction of carbon dioxide emissions related to cement production is a key point for industry today. About 60% of these emissions are chemical and issued from a crucial step in cement production: clinkerization. One of the solutions to reduce carbon dioxide emissions associated with concrete is the substitution of clinker by other materials. Since some decades, scientific community is particularly interested to the use of calcined clays (and specifically metakaolin) as supplementary cementitious materials (SCM). The combination of such materials with limestone filler is very promising in terms of mechanical properties. This study aims at demonstrate that the results obtained with a clay composed of illite and kaolinite before calcination are equivalent to those observed with a clay containing only kaolinite. Through a multi-scale approach, this work shows that the use of a pure clay is not necessary. In the case of ternary binders, hydrate assemblage is similar with one or the other clay. Performance-based approach is adopted for the qualification of durability indicators for concrete containing such binders and carbonation of these concretes must be given attention. Results in this study are encouraging and promising for the industrial use of composite calcined clays in cements
Książki na temat "Dioxyde de carbone – Environnement – Luxembourg"
Comptabilité carbone. Paris: La Découverte, 2013.
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