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Academic literature on the topic 'Emissions négatives'
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Journal articles on the topic "Emissions négatives"
Koubouana, Félix, Irène Marie Cécile Mboukou Kimbatsa Née Goma, Leckoundzou Ayessa, Saint Fédriche Ndzai, Benicia Marietta Bissanga, and Donatien Nzala. "Richesse De La Flore Ligneuse Exploitable Et Planification Des Émissions Du CO2 Dans Une Forêt De Production Du Mayombe Congolais." European Scientific Journal, ESJ 18, no. 14 (April 30, 2022): 75. http://dx.doi.org/10.19044/esj.2022.v18n14p75.
Full textA.W., Massi, Philippon M., Sejil S., Delenne B., and Abodo J. "Diabete Aftricain en France." European Scientific Journal, ESJ 19, no. 9 (March 31, 2023): 239. http://dx.doi.org/10.19044/esj.2023.v19n9p239.
Full textChamberlain, Erika. "THE CROWN’S FIDUCIARY DUTIES TO ABORIGINAL PEOPLES AS AN ASPECT OF CLIMATE JUSTICE." Windsor Yearbook of Access to Justice 30, no. 2 (October 1, 2012): 289. http://dx.doi.org/10.22329/wyaj.v30i2.4378.
Full textGrimal, Richard. "Reducing car traffic? Welfare costs and environmental benefits of different economic and technological scenarios by 2060." Les Cahiers Scientifiques du Transport - Scientific Papers in Transportation 73 | 2018 (March 31, 2018). http://dx.doi.org/10.46298/cst.12171.
Full textDissertations / Theses on the topic "Emissions négatives"
Jagu, Schippers Emma. "Addressing climate change with carbon dioxide removal : Insights from industrial economics and cooperative games." Electronic Thesis or Diss., université Paris-Saclay, 2022. http://www.theses.fr/2022UPAST134.
Full textRemoving CO2 from the atmosphere in addition to rapid mitigation efforts appear inevitable to keep global warming below 2°C. A growing number of countries and companies are setting “net zero” greenhouse gas emissions objectives in the coming decades, which implies that residual CO2 emissions would be compensated for by Carbon Dioxide Removal (CDR). CDR methods enhance natural carbon sinks or chemically engineer CO2 out of the atmosphere for durable storage through, for example, afforestation, Bioenergy with Carbon Capture and Storage (BECCS), or Direct Air Carbon Capture and Storage (DACCS). Although some methods are already well-established and technically feasible, CDR faces a slow uptake. With few exceptions to date, large-scale projects have not been commercially deployed. The identification of the socio-economic barriers currently hindering the deployment of CDR is thus a fundamental and timely research challenge. In particular, the barriers related to strategic interactions and coordination issues within value chains are often overlooked, despite being critical to unlocking a large-scale deployment of CDR.This thesis examines two specific coordination issues: (i) the deployment of shared CO2 transportation infrastructures, which are essential for the upscaling of BECCS processes, and (ii) the formation of interregional coalitions to reduce the overall costs of CDR. In both cases, cooperation can only succeed if a mutually acceptable and fair distribution of the costs and benefits can be achieved. Cooperative game-theory is thus particularly well-suited to examine such gain-sharing problems. The application of cooperative game-theory to a Swedish case-study of CO2 infrastructure deployment reveals that an incentive-compatible sharing of infrastructure costs is possible, provided that a sufficiently high CO2 price is reached. However, BECCS projects may be locked out from pipeline construction projects because of their current lack of economic incentives compared to fossil-fueled CCS projects. The risk of lock-out has important policy implications, as forward-looking infrastructure planning appears necessary to ensure the inclusion of BECCS in CO2 infrastructure. Finally, this thesis argues that inter-regional cooperation is instrumental in affordably deploying CDR and provides guiding principles on fair gain-sharing to ensure inter-regional agreements can materialize
Hagh-Gou, Djafar. "Étude de l'émission d'ions négatifs secondaires par pulvérisation ionique d'alliages binaires." Nancy 1, 1988. http://www.theses.fr/1988NAN10370.
Full textXiang, Yang. "Interaction d’atomes /ions hydrogène rapides (keV) avec des surfaces : diffraction et formation d’ions négatifs." Thesis, Paris 11, 2012. http://www.theses.fr/2012PA112161/document.
Full textIn this thesis, we have investigated experimentally the scattering of hydrogen atoms and ions on solid surfaces at grazing incidence. The projectile energy ranges from several hundred eV to few keV. The formation of H- ions is studied on highly oriented pyrolytic graphite (HOPG) surface; and surface diffraction is carried out on LiF(001) surface with H° and H+ particle scattering. Both experiments were performed in the same experimental setup (see Figure 1.2 and 2.1)—with grazing scattering geometry and a PSD (position sensitive detector) located downstream to record scattered particles. For charge state analysis a set of electrostatic plates is inserted between sample and PSD. During the experiment, coincident measurement technique is used to identify the energy loss associated to 0, 1, 2…electrons emission. Clear evidence of diffraction with inelastic scattering by proton on LiF(001) has been obtained, which has not been observed before. Indeed, the group of H. Winter reported that no diffraction exists with inelastic scattering of H° on LiF(001). However, according to our result, a coherence scattering factor still exists even though the electron capture by the proton is an inelastic process. For negative ion formation on HOPG surface, we report here the highest fraction of H- (~10%) measured in grazing scattering experiments; it is larger than those obtained on ionic insulators, the latter being typically 10 times larger than those measured on clean metals. These results confirm the high yields of negative hydrogen ions from graphite reported in the literature. Electron emission and energy loss of scattered beam have also been deciphered via coincidence measurement. Due to the special structure of HOPG, two kinds of electron emissions (σ and π-band electron) and energy losses (cycles and metal-like energy loss) have been measured. Furthermore, the total electron emission on HOPG with insulator-like behavior and total energy loss with metal-like are the most representative property of HOPG which have been first presented in this thesis
Irace, Zacharie. "Modélisation statistique et segmentation d'images TEP : application à l'hétérogénéité et au suivi de tumeurs." Phd thesis, Toulouse, INPT, 2014. http://oatao.univ-toulouse.fr/12201/1/irace.pdf.
Full textEtiemble, Aurélien. "Étude de matériaux hydrurables par émission acoustique : Application aux batteries Ni-MH." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0108/document.
Full textThe pulverization (cracking) of active materials in batteries, induced by their volume change during charge/discharge cycles, accentuates their corrosion by the electrolyte and/or leads to a loss of electronic connectivity within the electrode, which notably reduces their cycle life. This particularly occurs for metallic hydrides used in Ni-MH batteries. To date, the evaluation of their cracking is generally limited to post mortem observations of the electrodes by microscopy, which does not allow for a detailed analysis of the decrepitation process. In this respect, one of our main research objectives was to develop an innovative and efficient analysis method based on acoustic emission (AE) for in situ monitoring of the cracking of negative electrodes for Ni-MH batteries. As a first step, a detailed analysis of the acoustic signals generated during the charge (hydriding) of a commercial LaNi5-based alloy and a MgNi alloy obtained by mechanical alloying was performed. This allowed separating the signals generated by the cracking of the metallic hydride particles from those induced by the formation of H2 bubbles. We have shown that the mechanism which governs the pulverization of the MgNi alloy remarkably differs from that of the LaNi5-based alloy. In a second step, an experimental set-up made of an electrochemical cell linked to a compression force cell and an AE equipment was elaborated, in order to monitor concomitantly the cracking and the force generated by the expansion/contraction of the MgNi and LaNi5 during cycling. We have thereby been able to confirm that the volume expansion/contraction of the MgNi alloy is more progressive than that of the LaNi5 alloy. The AE-based comparative study of MgNi, Mg0.9Ti0.1NiAl5 and Mg0.9Ti0.1NiAl0.05 alloys then allowed demonstrating the positive effect of the partial Mg substitution by Ti and adding of Al on the alloy decrepitation resistance. As a final step, we have studied the impact of palladium addition in the Mg0.9Ti0.1NiAl0.05 alloy on its electrochemical behaviour and cracking resistance