Dissertations / Theses on the topic 'Hydrocarbures'
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Testard, Isabelle. "Pollution des eaux douces par les hydrocarbures." Paris 5, 1991. http://www.theses.fr/1991PA05P085.
Full textLe, Coupanec Pascale. "Oxydation des hydrocarbures saturés par le système de Gif." Paris 11, 1987. http://www.theses.fr/1987PA112076.
Full textThis Thesis is concerned with a study of the "Gif system", a means of oxidising saturated hydrocarbons, using a reductant, zinc, a trinuclear iron complex, Fe3 O(CH3C00)6 (Pyr)3,5 and molecular oxygen in a pyridine-acetic acid mixture, in air and at ambient temperature. It differs from other systems in its greater oxidation yields and above all by its interesting and unusual selectivity for the preferential activation of secondary C-H bonds. An in-depth study of the role of pyridine in this system has given us a better understanding of the necessity of this solvent for the efficiency and selectivity of the Gif system. It apparently functions essentially as a ligand for iron and as an electron transfer reagent. By introducing many different metal salts into the Gif system, in the presence and absence of Fe3 O(CH3C00)6 (Pyr)3,5 ,we have been able to establish the undoubted specific requirement for iron salts. Further studies have been performed with tungsten and cerium salts. Finally, a series of experiments was carried out with several organic compounds, able to react with the metallocarbene which is postulated to account for ketone formation. Of these, diphenyldiselenide proved the most interesting. Through this study we have discovered a new reaction of obvious synthetic interest, the facile conversion, in satisfactory yields, under mild conditions, of a hydrocarbon into its phenylselenide derivative
Bertrand, Philippe. "Pétrologie organique et hydrocarbures." Orléans, 1986. http://www.theses.fr/1986ORLE0211.
Full textMosbah, Smaïne. "Thermodynamique des mélanges CO₂-hydrocarbure sous haute pression." Paris 11, 1987. http://www.theses.fr/1987PA112284.
Full textBaudouin, Vincent. "L'action communautaire appliquée aux hydrocarbures minéraux." Poitiers, 1999. http://www.theses.fr/1999POIT3015.
Full textBagnères-Urbany, Anne-Geneviève. "Les hydrocarbures cuticulaires des insectes sociaux." Paris 6, 1989. http://www.theses.fr/1989PA066023.
Full textGhaffor, Noreddine. "Ultrafiltration tangentielle de suspensions mixtes : hydrocarbures." Montpellier 2, 1995. http://www.theses.fr/1995MON20081.
Full textDiakite, Aboubakar. "Commerce informel des hydrocarbures au Bénin." Thesis, Strasbourg, 2016. http://www.theses.fr/2016STRAG043.
Full textFirst of all on a small scale, then further along, on a much larger scale, the kpayo trade which means smuggling of gas and other oil products from Nigeria to Bénin, depend on almost 100 000 persons living on this sale activity. This trade might be quite different if gas transported by means of ships on the sea, by the river, or by scooters or trucks on the road. This kind of informal trade gives way to different kinds of odd jobs we mention in the PHD: bringing the jerrycans to the beach, reshaping scooters and trucks in a garage. Most of all this illicit activity needs some kind of a kinship network and political pull among the police and customs officers of the Republic. Empirical research has been done in different fields such as a gas station, a seaside village, a market on the country border, a landing stage, a warehouse, it led to the comprehension of the way smugglers are supplied. I was thus able to understand the process by which gas was transported from Nigeria to the Republic of Bénin, and see all the byways the smugglers are used to take, and the risks taken all along the journey. I examined the interaction process between the racketeers and the police when they passed a checkpoint; see how the markets were busy, and last managed to see how the the different roles of subjects interact. The racketeers networks analysis, life stories, different action strategies, the way they accumulate and the study of informal economy related to law contribute in this PhD to an essay in economic- anthropology with geographic standpoints, and a sociological analysis of precarious lives and Big Shots
Houssin-Agbomson, Deborah. "Solubilité des hydrocarbures dans l’oxygene liquide." Paris, ENMP, 2007. http://www.theses.fr/2007ENMP1503.
Full textIndustry is large consumer of air gas, mainly oxygen, nitrogen, argon for many and varied applications. Among the various processes of separation of air components, the more employed remains fractional distillation at very low temperature. The feed atmospheric air of air distillation units must be cleaned, before liquefaction, by removing all components being potentially obstructive at low temperatures (natural or produced by anthropic activities). The presence of pollutants – CO2, N2O, H2O and hydrocarbons (in particular propane, ethane, ethylene) – in the feed air can be at the origin of some drastic dysfunctions. That is why a more accurate knowledge of the solubility of hydrocarbons in liquid oxygen under process operating conditions (from 93 to 153 K) would make it possible to improve both evaluation and control of the risks specific to air distillation units and their performances. Concerning “hydrocarbon-oxygen” binary systems scientific literature presents only few data, probably because of the danger handling such flammable mixtures in laboratories. In order to be able to build the required database, in collaboration with L’Air Liquide new experimental equipment based on a “static-analytic” method allowing to work under safe conditions was designed, built and setup. The study of the solubility of propane in liquid oxygen was the really interesting first subject of investigation using new installation. Nevertheless we have begun investigations working on propane-oxygen system to validate equipment and continued with the study of the non hazardous mixture: propane-nitrogen before handling the propane-oxygen system. (P, x)-phase diagrams of these systems have been calculated thanks to thermodynamic modelling. Other works have been carried out concerning thermodynamic behaviour of several “hydrocarbon-oxygen” binary systems: ethane-oxygen, ethylene-oxygen and butane-oxygen. Results of this work can now be used by the industry in process simulator
Corsellis, Yannick. "Biodégradation des hydrocarbures en milieux sursalés." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0077.
Full textThis work performed on a thalassohaline hypersaline lake firstly considered seasonal dynamics of microbial communities (flow cytometry and MiSeq on 16S rRNA). Despite salinity fluctuations (15.5-32 %), a microbiome core highly stable at the genus level (97.2 ± 2.1 %) and dominated by Haloquadratum (40.3-57.4 %) and Salinibacter (4.9-21.8 %) was described. Interestingly, some halotolerant phylotypes exhibited rapid growths during dilutions episodes. In a controversial context concerning high salinity effects on hydrocarbons (HC) biodegradation, a study was conducted on close to salts-saturation brines (31 %) to gain insight into the fate of oil and it effects on active microbial communities after 15- and 30-days incubations. Significant oil biodegradation (12.8 %) was detected only after a 30-days incubation in LOM-amended microcosms while phylotypes belonging to Halobacteriaceae (Haloarcula, Halobacterium and Halorubrum) appeared as major active phylotypes. However, these low rates suggested that oil biodegradation should be lower under in situ conditions (lower temperature). Thus, among biostimulation approaches (mineral (-NS) or organic (-DS) amendments; dilution) used to improve self-cleaning processus, DS- or NS-amendments added to diluted brines (27.7 % to 14.0 %) allowed high attenuation rates of aliphatic HC with 97.8 % and 54.5 % respectively. Bacterial phylotypes belonging to Marinobacter and Flavobacteriaceae (e.g. Psychroflexus) were detected in NS- and DS-amended microcosms in which petroleum biodegradation occurred. This strategy will have, however, to be tested in other hypersaline systems (natural or industrial) in order to test its operational efficiency
Corsellis, Yannick. "Biodégradation des hydrocarbures en milieux sursalés." Electronic Thesis or Diss., Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0077.
Full textThis work performed on a thalassohaline hypersaline lake firstly considered seasonal dynamics of microbial communities (flow cytometry and MiSeq on 16S rRNA). Despite salinity fluctuations (15.5-32 %), a microbiome core highly stable at the genus level (97.2 ± 2.1 %) and dominated by Haloquadratum (40.3-57.4 %) and Salinibacter (4.9-21.8 %) was described. Interestingly, some halotolerant phylotypes exhibited rapid growths during dilutions episodes. In a controversial context concerning high salinity effects on hydrocarbons (HC) biodegradation, a study was conducted on close to salts-saturation brines (31 %) to gain insight into the fate of oil and it effects on active microbial communities after 15- and 30-days incubations. Significant oil biodegradation (12.8 %) was detected only after a 30-days incubation in LOM-amended microcosms while phylotypes belonging to Halobacteriaceae (Haloarcula, Halobacterium and Halorubrum) appeared as major active phylotypes. However, these low rates suggested that oil biodegradation should be lower under in situ conditions (lower temperature). Thus, among biostimulation approaches (mineral (-NS) or organic (-DS) amendments; dilution) used to improve self-cleaning processus, DS- or NS-amendments added to diluted brines (27.7 % to 14.0 %) allowed high attenuation rates of aliphatic HC with 97.8 % and 54.5 % respectively. Bacterial phylotypes belonging to Marinobacter and Flavobacteriaceae (e.g. Psychroflexus) were detected in NS- and DS-amended microcosms in which petroleum biodegradation occurred. This strategy will have, however, to be tested in other hypersaline systems (natural or industrial) in order to test its operational efficiency
Aselmeyer, Cyril. "Conversion photoenzymatique des lipides en hydrocarbures." Electronic Thesis or Diss., Aix-Marseille, 2021. http://www.theses.fr/2021AIXM0323.
Full textProduction of bio-sourced hydrocarbons for biofuels and green chemistry is a major biotechnological challenge. Fatty Acid Photodecarboxylase (FAP) is a microalgal enzyme which produces hydrocarbons from non-esterified fatty acids (FAs). It only uses light as an energy source and could be useful to convert oils into hydrocarbons. FAP is the third light driven enzyme to be identified and the first one known to act in lipid metabolism and thus has a strong biotechnological potential. Since this soluble enzyme acts on lipids, our aim is to study its behavior toward various lipid/water interfaces in order both to better understand how it works in vivo and how it may behave under industrial conditions. Chlorella variabilis FAP was produced and purified. Langmuir films were used to record the adsorption and/or the interfacial activity of the FAP. Artificial liposomes containing free FAs were prepared and used to perform in vitro assays. Produced hydrocarbons were extracted and analyzed by GC-MS/FID.Using palmitate in membranes, mixed micelles, we show that FAP displays a preference for FAs present in liposomes and at the surface of microemulsions. Adsorption kinetics onto phospholipid and galactolipid monomolecular films further suggests the ability of FAP to bind to membranes, with higher affinity in the presence of FAs. FAP structure reveals an interfacial recognition site with clusters of hydrophobic and basic residues surrounding the active site entrance. The resulting dipolar moment suggests the orientation of FAP at negatively charged interfaces. These findings provide important clues for the mode of action of FAP, the development of FAP-based bioconversion processes
Saylam, Ahmad. "Etudes par modélisation de l'oxydation et de l'autoinflammation d'alcanes et d'aromatiques purs et de mélanges à haute pression entre 600 et 1500 K : réduction de mécanismes détaillés : mesure de la formation des suies." Artois, 2005. http://www.theses.fr/2005ARTO0206.
Full textThe understanding and control of many combustion phenomena requires an interactive work between experiments and modelling. The presentation of the two coupled approaches is a prerequisite to demonstrate the complexity of the phenomena (Chapters I and II). This complexity often precludes from fully elucidating the details of the chemistry of hydrocarbon oxidations. Such a failure has been shown by an attempt to improve the mechanism of oxidation of isooctane (Chapter III). Hundreds of species and thousands of reactions come into play during the oxidation of an hydrocarbon and they all must be included into the detailed mechanisms. The need for smaller mechanisms logically has led to devise a technique of reduction (Chapter IV). Predictive thermokinetic mechanisms have been built, reduced, and validated with new experimental data and data collected from previous work or published elsewhere (Chapter V). Laser diagnostic techniques have been used to measure soot particles and HAP inside a methane flame (Chapter VI)
Carrizo, Silvina Cecilia. "LES HYDROCARBURES EN ARGENTINE : RESEAUX, TERRITOIRES, INTEGRATION." Phd thesis, Université de la Sorbonne nouvelle - Paris III, 2003. http://tel.archives-ouvertes.fr/tel-00361960.
Full textCes changements ont entraîné une augmentation de la production d'hydrocarbures, permettant d'atteindre l'autosuffisance et d'exporter. Mais l'expansion insuffisante des réseaux internes semble compromettre la couverture de nouvelles demandes. En revanche, des réseaux d'oléoducs et gazoducs ont été réalisés pour atteindre les marchés externes. Les réseaux argentins s'intègrent à ceux des pays voisins. Cette intégration offre aux pays du Cône Sud une opportunité de mettre en valeur leurs potentiels.
A l'intérieur du pays, les territoires des hydrocarbures font face aux conséquences de la restructuration (chômage, perte d'identité territoriale...). Avec difficulté et des possibilités très différentes, ces territoires, tels Comodoro Rivadavia, Ensenada et Bahía Blanca, cherchent à se réinventer.
Vavilov, Semyon. "L' investissement étranger dans l'industrie des hydrocarbures." Paris 1, 2006. http://www.theses.fr/2006PA010027.
Full textCarrizo, Silvina Cecilia. "Les hydrocarbures en Argentine : réseaux, territoires, intégration." Paris 3, 2003. https://tel.archives-ouvertes.fr/tel-00361960.
Full textArgentinean hydrocarbur networks have lived a huge restructuration, after the State reform in the 90's. Activities de-regulation and the privatization of YPF and Gas del Estado forced the sector re-concentration, since then dominated by foreign companies, leaded by Repsol YPF. The hydrocarburs federalization contributed to the weakening and uncapitalization loss of wealth of the State. These changes resulted in an increase of the hydrocarburs production allowing to achieve the self-supply. Nevertheless, the expansion of internal networks has not been large enough to ensure the coverage of new requirements. Besides, several infrastructures have been built up to join external markets. National networks are connected to those of near neighboring countries. This integration is an opportunity for the "South Cone" countries to enhance their potentials. In the country, hydrocarbur territories undergo the restructuration effects (unemployment, loss of territorial identity, etc). With many difficulties and very different possibilities, those territories, like Comodoro Rivadavia, Ensenada et and Bahía Blanca, look for their re-invention
Jalal, Rachid. "Activation des hydrocarbures : fonctionnalisation sélective de l'adamantane." Aix-Marseille 3, 1991. http://www.theses.fr/1991AIX30016.
Full textConiglio, Lucie. "Estimations des propriété thermophysiques des hydrocarbures lourds." Aix-Marseille 3, 1993. http://www.theses.fr/1993AIX30033.
Full textAl, Mallah Maha. "Biodegradation des hydrocarbures dans les milieux sursales." Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX22040.
Full textHaloui, Salah. "Capacités dégradatives de champignons utilisant les hydrocarbures." Paris 7, 1989. http://www.theses.fr/1989PA077196.
Full textLALLEMAND, THIERRY. "Modelisation thermodynamique des melanges methanol - eau - hydrocarbures." Aix-Marseille 2, 1998. http://www.theses.fr/1998AIX22051.
Full textAl, Mallah Maha. "Biodégradation des hydrocarbures dans des milieux sursales." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376155961.
Full textMorales, Loo Maria del Rocio. "Effets des hydrocarbures sur le phytoplancton marin." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37616682v.
Full textGautier, Céline. "Biodégradation des hydrocarbures en milieu poreux insaturé." Pau, 2007. http://www.theses.fr/2007PAUU3037.
Full textBiological processes are expected to play an important role in the degradation of petroleum hydrocarbons in contaminated soils. However, factors influencing the kinetics of biodegradation are still not well known, especially in the unsaturated zone. To address these biodegradation questions in the unsaturated zone an innovative experimental set up based on a physical column model was developed. This experimental set up appeared to be an excellent tool for elaboration of a structured porous medium, with well defined porous network and adjusted water/oil saturations. Homogeneous repartition of both liquid phases (i. E. , aqueous and non aqueous) in the soil pores, which also contain air, was achieved using ceramic membranes placed at the bottom of the soil column. Reproducible interfaces (and connectivity) are developed between gas, and both non mobile water and NAPL phases, depending on the above-defined characteristics of the porous media and on the partial saturations of these three phases (NAPL, water and gas). A respirometric apparatus was coupled to the column. Such experimental set up have been validated with hexadecane in dilution in an HMN phase. This approach allowed detailed information concerning n-hexadecane biodegradation, in aerobic condition, through the profile of the oxygen consumption rate. We have taken benefit of this technique, varying experimental conditions, to determine the main parameters influencing the biodegradation kinetics and compositional evolution of hydrocarbons, under steady state unsaturated conditions and with respect to aerobic metabolism. Impacts of the nitrogen quantity and of three different grain sizes have been examined. Biodegradation of petroleum cut, as diesel cut and middle distillate without aromatic fraction, were also studied
Rocio, Morales Loo Maria del. "Effets des hydrocarbures sur le phytoplancton marin." Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX22022.
Full textTang, Emmanuel. "La Recherche et l'exploitation des hydrocarbures au Cameroun : aspects juridiques." Paris 1, 1986. http://www.theses.fr/1986PA010278.
Full textLaloue, Nicolas. "Étude phénoménologique de la co-diffusion dans les zéolithes avec une approche par modèle de réseau de pores." Lyon 1, 2007. http://www.theses.fr/2007LYO10247.
Full textThe diffusion of n-hexane (nC6) isomers in the silicalite-1, as single component or in binary mixtures, is studied by Kinetic Monte Carlo simulations to get a better insight of correlation effects between molecules. Original models, based on anisotropic transition rates to account for the molecule distribution within the zeolite, consider guest-guest interactions and different saturation capacities. Simulated loading dependences of single component self- and corrected diffusivities of nC6 and nC7 are in good agreement with Quasi-Elastic Neutron Scattering data. Results on binary diffusion of nC6/2,2-dimethylbutane (22DMB) mixtures show the impact of nC6-22DMB interactions on both self- and corrected diffusivities of the two species, while molecule-size effects prevail near 22DMB saturation capacity. Acceleration/deceleration effects are confirmed
Deni, Jamal. "Bioremédiation des sols pollués par les hydrocarbures: étude de l'activité des bactéries nitrifiantes dans les sols pollués par les hydrocarbures." Doctoral thesis, Universite Libre de Bruxelles, 1999. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211901.
Full textRivet, Laurent. "Biodégration des hydrocarbures pétroliers en milieu marin : approches in situ et in vitro." Aix-Marseille 3, 1994. http://www.theses.fr/1994AIX30027.
Full textMouzdahir, Abdelkrim. "Devenir biotique et abiotique des hydrocarbures insaturés biogènes dans le milieu marin." Aix-Marseille 2, 2001. http://www.theses.fr/2001AIX22020.
Full textD'Almeida, Sylvaine. "Rôle de la nature et de la disponibilité de l'azote dans la biodégradation d'un pétrole brut en milieu marin." Aix-Marseille 2, 1988. http://www.theses.fr/1988AIX22077.
Full textEssaga, Victor Stéphane. "Les sources du droit des hydrocarbures en Afrique." Thesis, Paris 1, 2018. http://www.theses.fr/2018PA01D015.
Full textThe lex petrolea is the set of rules established over time by actors involved in the exploration, development and exploitation of hydrocarbons. Recorded and regularly updated by Anglo-Saxon doctrine, it constitutes Archimedes' point from which academic work declines what should be considered hydrocarbon law. It is more likely to be interpreted as a set of norms of plural sources (arbitral, contractual, legislative), without any overall coherence and, above all, without distinguishing the role of actors who nevertheless have a different legal and economic status. On the one hand, States are certainly driven by legitimate patrimonial interests, but also by geo-economic and even political interests. Energy investors on the other hand are exclusively motivated by the gain of profit, and this relationship generates a significant hydrocarbon law. In order to renew the legal doctrine of this activity, a new approach is proposed based on the respective and complementary theories of legal monism on the one hand and legal relationalism on the other. Once legal norms are established, they are more or less applied, immersed in the special relationship between States and their contracting partners. The contractual relationship leads to a broader legal relationship structured around written standards, shareholder practices and simply around a relationship that generates a hydrocarbon law that goes beyond identifiable written standards. The systematic intervention of a third party, either the administration in several forms in the execution of the obligations of the parties, or the arbitrator in the event of litigation, allows the construction, upkeep and permanent maintenance of legal relations between the parties. They thus create a symbolic framework for their relations, under the influence and total control of the State, as the owner of the extractive resources. This is what we have called in conclusion to the study the relational monism of African hydrocarbon law
Lichtenstein, De Bank Christine. "Contributions à l'étude des systèmes méthanol-eau-hydrocarbures." Aix-Marseille 3, 1992. http://www.theses.fr/1992AIX30078.
Full textLair, Antoine. "Étude de la dégradation des hydrocarbures par photocatalyse." Lyon 1, 2007. http://www.theses.fr/2007LYO10285.
Full textGarni, Mohamed. "Activation électrophile des hydrocarbures : fonctionalisation sélective de l'adamantane." Aix-Marseille 3, 1993. http://www.theses.fr/1993AIX30082.
Full textGeorges, Etienne. "Dispersion et forces de surfaces dans les hydrocarbures." Ecully, Ecole centrale de Lyon, 1996. http://www.theses.fr/1996ECDL0035.
Full textAmbroise, Emmanuelle. "Production embarquée d’hydrogène par reformage catalytique des hydrocarbures." Strasbourg, 2010. https://publication-theses.unistra.fr/public/theses_doctorat/2010/AMBROISE_Emmanuelle_2010.pdf.
Full textIsooctane reforming under conditions which are set by exhaust gas can be performed on to generate hydrogen onboard. Isooctane reforming thermodynamic simulations have proven the possibility to produce a 10-15 % H2 effluent, according to internal combustion engine conditions. Based upon these conditions, reactivity tests on reforming of isooctane have been performed with bimetallic catalysts Co-noble metal/ceria-zirconia. Variable activity of noble metals doped catalysts, depending on the nature of the noble metal (Rh, Ru, Pd, Pt), its loading, and affected by the activation process, is discussed, as the ceria/zirconia ratio and praseodymium doping on catalytic activity and stability. Cobalt speciation has been studied by various characterization techniques, allowing to define an optimal content of inserted cobalt in the mixed oxide structure, enhancing redox properties of the catalyst. The most efficient catalyst for hydrogen production was evaluated in various reactions occurring during isooctane reforming (dry reforming, partial oxidation, steam reforming), allowing to propose a reaction mechanism. The support (a ceria-zirconia based mixed oxide) with acidic and redox properties acts to break isooctane molecule into isobutene through dehydrogenating cracking (acid site) and activate water (vacancy, redox site). The noble metal performs isobutene reforming. The strong metal-support interaction provides a good lifetime to the catalytic system
Aigueperse, Anne. "Dispersion dans un aquifère contaminé par des hydrocarbures." Bordeaux 1, 1998. http://www.theses.fr/1998BOR10577.
Full textBelahsene, Sofiane. "Lasers moyen infrarouge innovants pour analyse des hydrocarbures." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20166/document.
Full textThe objective of this thesis, conducted as part of the European contract Senshy, was the realization of laser diodes emitting in the mid-infrared range (from 3.0 to 3.4 µm). These devices are to be integrated into detectors and gas analysis systems based on the principle of absorption spectroscopy (TDLAS). for the detection of alkanes (methane, ethane, propane) and of alkenes (acetylene). The quantum well type-I structures were made by molecular epitaxy on GaSb. Despite having excellent performance in the 2 to 3 µm range, GaInAsSb/AlGaAsSb quantum well lasers rapidly show their limits when crossing the 3 µm barrier (the highest wavelength reached with such a device was 3.04 µm under cw operation at 20°C). This situation was all the more regrettable because several gases have their strongest absorption lines in the 3 to 4 µm range: methane, for example, has a peak of absorption at 3.26 µm overhanging a weaker peak at 2.31 µm by a factor 40. By replacing the quaternary AlGaAsSb by the quinary AlGaInAsSb, we have shown that the internal efficiency could be improved and we have obtained threshold current densities at 2.6 , 3.0 and 3,3 µm that could be favourably compared to the previous records at these wavelengths (respectively, 142 A/cm², 255 A/cm² and 827 A/cm²).DFB laser diodes made from the epitaxial structures were operated at room temperature in the continuous wave regime at 3.06 µm with a single-frequency emission (SMSR greater than 30dB) and a threshold current of 54 mA. At 3.3 µm, DFB devices were operated in cw up to 18 ° C with a SMSR > 30 dB and a current threshold of 140 mA. Eventually, these devices were integrated into a gas analysis system and allowed to reach a concentration limit of 100 ppbv of methane, i.e. 17 times less than the concentration of methane in the air
Mosbah, Smaïne. "Thermodynamique des mélanges CO-hydrocarbures sous haute pression." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37608172f.
Full textBouvet, Jean-Pierre. "L'unité de gisement : hydrocarbures et autres matières minérales /." Paris ; Budapest ; Torino : l'Harmattan, 2004. http://catalogue.bnf.fr/ark:/12148/cb39906586j.
Full textDauvergne, Guillaume. "Hydrocarbures polycycliques aromatiques et chiralité : synthèse et modélisation." Electronic Thesis or Diss., Aix-Marseille, 2022. http://theses.univ-amu.fr.lama.univ-amu.fr/220114_DAUVERGNE_514pegpm797ly207jyhru699kmoiq_TH.pdf.
Full textIn this manuscript, we describe how we have developed the chemistry of aryne atropisomers with an ortho reactive triple bond to the stereogenic axis. These reaction intermediates are easily generated in situ and react in enantiospecific manners, and allow the synthesis of novel atropisomers. In particular, we describe the generation and applications of a synthetic equivalent of a BINOL-derived bis(aryne) atropisomer, as well as the semi-experimental measurement of the reaction barrier of such arynes in the presence of a standard arynophile. At the end of the manuscript, we describe our efforts to develop a synthetic approach to two regioisomers triple helices
Ben, Bayer Habib. "Analyse comparative de stratégies industrielles dans les PVD : un essai d'interprétation à travers l'industrie des hydrocarbures en Algérie, en Corée du Sud et au Mexique." Caen, 1985. http://www.theses.fr/1985CAEN0504.
Full textJacquot, Frédéric. "Etude de l'origine et du vieillissement d'hydrocarbures pétroliers en milieu marin : approches in vitro et in situ : apport des marqueurs biogéochimiques." Aix-Marseille 3, 1996. http://www.theses.fr/1996AIX30005.
Full textDescales, Bernard. "Modélisation des propriétés de coupes d'hydrocarbures par spectroscopie proche-infrarouge." Aix-Marseille 3, 1989. http://www.theses.fr/1989AIX30060.
Full textHireche, Assia. "Impacts macroéconomiques des politiques énergétiques en Algérie." Paris 9, 1986. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1986PA090044.
Full textBelloum, Mohamed. "Etude de l'hydroisomérisation des hydrocarbures paraffiniques C4 à C7 et naphténiques C6, en présence de catalyseurs PT/H-Mordenite." Paris 6, 1990. http://www.theses.fr/1990PA066033.
Full textBouchtalla, Sahib. "Etude thermodynamique des clathrates hydratés d'hydrocarbures légers par mesure de tension de vapeur d'eau." Dijon, 1986. http://www.theses.fr/1986DIJOS039.
Full textDaugé, Pierre. "Contribution à la détermination de la viscosité dynamique et de la masse volumique d'hydrocarbures et de leurs mélanges aux hautes pressions : Mise au point d'un viscomètre à transfert isobare." Pau, 1999. http://www.theses.fr/1999PAUU3022.
Full textLannuzel, Frédéric Marquaire Paul-Marie Scacchi Gérard. "Influence des aromatiques sur la stabilité thermique des pétroles dans les gisements." S. l. : INPL, 2007. http://www.scd.inpl-nancy.fr/theses/2007_LANNUZEL_F.pdf.
Full text