Academic literature on the topic 'Pompe à carbone'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Pompe à carbone.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Pompe à carbone"
Iwuagwu, Joy O., and J. Obeta Ugwuanyi. "Treatment and Valorization of Palm Oil Mill Effluent through Production of Food Grade Yeast Biomass." Journal of Waste Management 2014 (September 25, 2014): 1–9. http://dx.doi.org/10.1155/2014/439071.
Full textWidodo, Bagas Wijdan, and Annisa Bhikuning. "ANALISA KARAKTERISTIK POMPA AIR UNTUK KEBUTUHAN AIR UTILITAS PADA PABRIK PROSES AGLOMERASI PT. Z." JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI 7, no. 2 (July 30, 2022): 257–68. http://dx.doi.org/10.25105/pdk.v7i2.13267.
Full textAdeleke, Abdul Rahman Oyekanmi, Ab Aziz Abdul Latiff, Zawawi Daud, Nur Falilah Mat Daud, and Mohammed Kabir Aliyu. "Heavy Metal Removal from Wastewater of Palm Oil Mill Using Developed Activated Carbon from Coconut Shell and Cow Bones." Key Engineering Materials 737 (June 2017): 428–32. http://dx.doi.org/10.4028/www.scientific.net/kem.737.428.
Full textMahdi, Muhamad Zaini, Yasinta Nikita Titisari, H. Hadiyanto, and Marcelinus Christwardana. "Evaluation Of Spirulina, Nannochloropsis, and Chlorella Micro-algae Growth in Palm Oil Mill Effluent (POME) Medium with Variation of Medium Types and Time Adding Nutrient." Journal of Bioresources and Environmental Sciences 1, no. 1 (April 5, 2022): 27–32. http://dx.doi.org/10.14710/jbes.2022.14239.
Full textAhmad Kamal, Syafawati, Mariatul Fadzillah Mansor, Jamaliah Mohd Jahim, and Nurina Anuar. "Effect of Pre-Treatment Palm Oil Mill Effluent POME on Biohydrogen Production by Local Isolate Clostridium Butyricum." Advanced Materials Research 236-238 (May 2011): 2987–92. http://dx.doi.org/10.4028/www.scientific.net/amr.236-238.2987.
Full textNugraheni, Ika Kusuma, Nuryati Nuryati, Anggun Angkasa Bela Persada, Triyono Triyono, and Wega Trisunaryanti. "Impregnated Zeolite as Catalyst in Esterification Treatment from High Free Fatty Acids Palm Oil Mill Effluent." Jurnal Rekayasa Kimia & Lingkungan 16, no. 1 (May 20, 2021): 19–27. http://dx.doi.org/10.23955/rkl.v16i2.16378.
Full textLiew, Wai Loan, Khalida Muda, Mohd Azraai Kassim, Kok Yan Lai, Zi Yang Si, Yeap Hong Thong, and Soh Kheang Loh. "POME Treatment Efficacy as Affected by Carrier Material Size in Micro-Bioreactor System." Applied Mechanics and Materials 567 (June 2014): 104–9. http://dx.doi.org/10.4028/www.scientific.net/amm.567.104.
Full textRianna, Martha. "Structure and Particle Size of Nano Carbon Liquid Particle from Palm Oill Mill Effluent using Hydrothermal Method." Journal of Applied Research and Technology 20, no. 2 (May 2, 2022): 136–41. http://dx.doi.org/10.22201/icat.24486736e.2022.20.2.1813.
Full textKim, Hong-Gyum, Byung-Chul Kim, Eun-Hee Park, and Chang-Jin Lim. "Stress-dependent regulation of a monothiol glutaredoxin gene from Schizosaccharomyces pombe." Canadian Journal of Microbiology 51, no. 7 (July 1, 2005): 613–20. http://dx.doi.org/10.1139/w05-034.
Full textStefany, Cindy. "Pemanfaatan Activated Carbon dalam Meningkatkan Fungsi Koagulan untuk Pengolahan POME (Palm Oil Mill Effluent)." JOURNAL OF ENVIRONMENTAL MANAGEMENT AND TECHNOLOGY 2, no. 2 (November 28, 2023): 64–74. http://dx.doi.org/10.31258/jptl.2.2.64-74.
Full textDissertations / Theses on the topic "Pompe à carbone"
Pasquer, Bénédicte. "Modélisation de la pompe biologique de carbone dans l'Océan Austral." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210937.
Full textDrago, Laetitia. "Analyse globale de la pompe à carbone biologique à partir de données en imagerie quantitative." Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS562.
Full textThe biological carbon pump (BCP) plays a central role in the global ocean carbon cycle, transporting carbon from the surface to the deep ocean and sequestering it for long periods. This work aims to analyse two key players of the BCP: zooplankton and particles. To this end, we use in situ imaging data from the Underwater Vision Profiler (UVP5) to investigate two primary axes: 1) the global distribution of zooplankton biomass and 2) carbon export in the context of a North Atlantic spring bloom. Our objectives includes a quantification of global zooplankton biomass, enhancing our comprehension of the BCP via morphological analysis of particles, and assessing and comparing the gravitational flux of detrital particles during a the North Atlantic spring bloom using high-resolution UVP5 data. With the help of UVP5 imagery and machine learning through habitat models using boosted regression trees, we investigate the global distribution of zooplankton biomass and its ecological implications. The results show maximum zooplankton biomass values around 60°N and 55°S and minimum values within the oceanic gyres, with a global biomass dominated by crustaceans and rhizarians. By employing machine learning techniques on globally homogeneous data, this study provides taxonomical insights into the distribution of 19 large zooplankton groups (1-50 mm equivalent spherical diameter). This first protocol estimates global, spatially resolved zooplankton biomass and community composition from in situ imaging observations of individual organisms. In addition, within the unique context of the EXPORTS 2021 campaign, we analyse UVP5 data obtained by deploying three instruments in a highly retentive eddy. After clustering the 1,720,914 images using Morphocluster, a semi-autonomous classification software, we delve into the characteristics of the marine particles, studying their morphology through an oblique framework that follows a plume of detrital particles between the surface and 800 m depth. The results of the plume following approach show that, contrary to expectations, aggregates become unexpectedly larger, denser, more circular and more complex with depth. In contrast, the evolution of fecal pellets is more heterogeneous and shaped by zooplankton activity. Such results challenge previous expectations and may require a reassessment of our view of sinking aggregates and fecal pellets. We also studied concentration and carbon flux dynamics using a more traditional 1D framework where we explore the three key elements in flux estimation from in situ imaging data by comparing UVP5 and sediment trap flux estimates: size range covered, sinking rate and carbon content. According to the current literature, neutrally buoyant sediment traps (NBST) and surface-tethered traps (STT) usually cover a size range from 10 µm to approximately 2 mm. In our study, we have found that by expanding the UVP size range to 10 µm and limiting it to 2 mm, a more consistent comparison can be made between UVP5-generated flux and sediment trap fluxes (obtained by colleagues). However, it is worth noting that there remains a large flux contribution above this size threshold, necessitating further investigation of its implications through the use of complementary approaches such as the use of sediment traps with larger openings. This manuscript not only advances our knowledge, but also addresses critical challenges in estimating zooplankton biomass and particle dynamics during export events. The findings of this study open up new avenues for future research on the biological carbon pump and deepen our understanding of marine ecosystems
Guitari, Imed. "Etude expérimentale et modélisation d'une pompe à chaleur fonctionnant au CO2." Lyon, INSA, 2005. http://theses.insa-lyon.fr/publication/2005ISAL0070/these.pdf.
Full textThis work concerns an experimental study and modelling of an air/water beat pump using carbon dioxide as a working fluid. The experimental study is carried out on an instrumented test setup (pressure, temperature, flow end power measurements) to characterize the operation of this type of installation in static and dynamic mode. The static model was developed an validated. It allows to determine the optimal conditions of operation for various external conditions. Thus, a simplified law governing the optimal high pressure according to the gas cooler outlet temperature is deduced from the calculations. The dynamic model is based on the equations of mass and energy conservation. It takes into account the thermal inertia on the compressor, the exchanger' s walls, the refrigerant (carbon dioxide) and the coolant (water). Comparison between modelling results and those obtained with the test stand gives a good agreement. Thanks to this model, it is possible to record the operating variables versus time and space after changing the input parameters such as sources temperatures, expansion valve opening and compressor rotating speed. In particular, we notice a good representation of starting process with a transition from subcritical to transcritical cycle
Lauret, Jean-Sébastien. "Etude des propriétés optiques des nanotubes de carbone." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2003. http://tel.archives-ouvertes.fr/tel-00004218.
Full textDans un premier temps, la spectroscopie d'absorption a été utilisée comme un outil de caractérisation des différents échantillons. En effet, l'énergie de la transition entre la première paire de singularités de Van-Hove étant proportionnelle à l'inverse du diamètre, la spectroscopie d'absorption donne une mesure du diamètre moyen ainsi que de la largeur de la distribution en diamètre.
Nous avons étudié les conditions d'observation d'un signal de photoluminescence au niveau du gap des nanotubes semi-conducteurs. Pour observer ce signal, les nanotubes doivent être isolés, en les mettant convenablement en suspension par exemple. Les expériences de photoluminescence sélective en longueur d'onde ont montré que les structures observées dans les spectres peuvent être attribuées aux différentes chiralités présentes dans l'échantillon. Elles ont également permis d'évaluer la largeur homogène de la transition fondamentale (environ 20 meV). Enfin, la spectroscopie d'excitation de la photoluminescence a permis de déterminer la chiralité des différents nanotubes présents dans nos échantillons.
Dans un deuxième temps, la dynamique des porteurs de charge dans les nanotubes de carbone a été étudiée à l'aide d'expériences de type pompe-sonde. Cette étude réalisée sur des nanotubes déposés sur un substrat et agrégés en corde a montré l'existence d'un couplage tunnel entre les nanotubes semi-conducteurs et les nanotubes métalliques au sein d'une corde. L'existence de ce couplage ainsi que la brièveté des temps de relaxation (picoseconde) expliquent l'absence de signal de photoluminescence sur ce type d'échantillon. La comparaison faite avec les données obtenues sur les échantillons de nanotubes isolés montre une augmentation d'un ordre de grandeur des temps de relaxation, ce qui est en accord avec l'apparition d'un signal de photoluminescence observable sur ces échantillons. L'étude de la réponse non-linéaire hors résonance a mis en évidence la dynamique du plasmon de surface des nanotubes. Elle a également permis d'interpréter le fond d'absorption sur lequel sont superposées les raies dues aux transitions inter-bandes comme la queue basse énergie de la résonance plasmon de surface. Enfin, la susceptibilité non-linéaire d'ordre trois des nanotubes a pu être évaluée. La comparaison entre le facteur de mérite des nanotubes et celui d'autres matériaux étudiés en vue d'une application en optique non-linéaire a montré que les nanotubes de carbone semblent posséder des propriétés intéressantes pour ce type d'applications.
Movellan, Aurore. "La biomasse des foraminifères planctoniques actuels et son impact sur la pompe biologique de carbone." Phd thesis, Université d'Angers, 2013. http://tel.archives-ouvertes.fr/tel-00950433.
Full textLemaitre, Nolwenn. "Approche multi-proxy (Thorium-234, Baryum en excès) des flux d'export et de reminéralisation du carbone et des éléments nutritifs associés à la pompe biologique océanique." Thesis, Brest, 2017. http://www.theses.fr/2017BRES0009/document.
Full textThe main objective of this thesis is to improve our understanding of the different controls that affect the oceanic biological carbon pump. Particulate export and remineralization fluxes were investigated using the thorium-234 (234Th) and biogenic barium (Baxs) proxies.In the North Atlantic, the highest particulate organic carbon (POC) export fluxes were associated to biogenic (biogenic silica or calcium carbonate) and lithogenic minerals, ballasting the particles.Export efficiency was generally low (< 10%) and inversely related to primary production, highlighting a phase lag between production and export. The highest transfer efficiencies, i.e. the fraction of POC that reached 400m, were driven by sinking particles ballasted by calcite or lithogenic minerals.The regional variation of mesopelagic remineralization was attributed to changes in bloom intensity, phytoplankton cell size, community structure and physical forcing (downwelling). Carbon remineralization balanced, or even exceeded, POC export, highlighting the impact of mesopelagic remineralization on the biological pump with a near-zero, deep carbon sequestration for spring 2014.Export of trace metals appeared strongly influenced by lithogenic material advected from the margins. However, at open ocean stations not influenced by lithogenic matter, trace metal export rather depended on phytoplankton activity and biomass.A last part of this work focused on export of biogenic silica, particulate nitrogen and iron near the Kerguelen Island. This area is characterized by a natural iron-fertilization that increases export fluxes. Inside the fertilized area, flux variability is related to phytoplankton community composition
Noury, Adrien. "Photonique hybride des nanotubes de carbone." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112199/document.
Full textOn-chip optical communication may increase drastically performances and consumption of communication systems. Indeed, optical channels do not face limitations that metallics interconnects do. Even better would be the achievable data rate due to the multiplexing possibility in optics. In order to keep compatibility with electronic devices, optical components and interconnects should be built in silicon. However, this material is not suitable for some optical function, such as laser sources. Thus, there is a need to integrate alternative materials to compensate for silicon weaknesses. My PhD work focuses on integration of carbon nanotube on silicon for photonics applications. In this work, potential use of carbon nanotube for light emission function is investigated. First, I will propose clue to understand the appearance of optical gain in semiconducting carbon nanotube. Such investigation is done by mean of pump-probe experiments, where the excitons lifetimes are measured. Those lifetimes slightly increase while centrifugation time and speed is increased, during the extraction process. A possible explanation is that defect-free carbon nanotubes are selected by the centrifugation process. In parallel, I worked on designing an efficient method to couple nanotubes photoluminescence with silicon waveguides. This method appears to be quite robust, and allows to observe coupling between the nanotube photoluminescence and the optical mode of the waveguide. In order to obtain a more intense interaction between the optical mode and carbon nanotubes, I investigated the coupling between carbon nanotubes and several photonic cavities, including microdisks, Fabry-Pérot cavities and ring resonators. Specifically, ring resonators allow to measure the photoluminescence of carbon nanotube structured by the resonant modes. Several configurations are studied to understand more in-depth the coupling mechanisms: micro-photoluminescence, guided photoluminescence and integrated photoluminescence
Voisin, Christophe. "Propriétés Optiques des Nanotubes de Carbone." Habilitation à diriger des recherches, Université Pierre et Marie Curie - Paris VI, 2009. http://tel.archives-ouvertes.fr/tel-00430590.
Full textLe, Gland Guillaume. "Contraindre les échanges côte-large et la pompe biologique de carbone par modélisation inverse de deux radio-isotopes (radium228 et thorium234)." Thesis, Brest, 2018. http://www.theses.fr/2018BRES0032/document.
Full textThe oceanic cycles of carbon and the main nutrients are poorly known since they are affected by many physical, chemical or biological sources and sinks that are difficult to estimate by direct measurements.One way to better constrain these important processes is to use the information contained in more simple tracers called "proxies". As radium 228 (228Ra) flows from the continental shelves, it is used as a proxy of water and mineral elements fluxes from the coast to the open ocean. In particular, it is often used to estimate the SGD (Submarine Groundwater Discharge). For its part, thorium 234 (234Th), an insoluble radio-isotope, is used to constrain the dynamics of the solid particles onto which it is adsorbed. The carbon flux from the surface to the deep ocean, called "biological carbon pump" (BCP), is often estimated by a 234Th-based method.During this PhD, a numerical model with a resolution of 2°, based on the circulation of the NEMO-OPA model and the particle fields of the PISCES model, was built for each of the two radioisotopes.Several unknown model parameters were constrained by observations using an inverse technique.The inverse modeling of 228Ra was used to constrain 228Ra fluxes from 38 coastal regions.However, the SGD fluxes are poorly constrained by this method, because SGD can be confused with another source of 228Ra: diffusion from sediments.The inverse modeling of 234Th produced estimates of partition coefficients, representing the affinity of different particle types for this isotope. It was also used to estimate the errors associated with some common simplifications made in 234Th-based BCP studies
Bucciarelli, Eva. "Rôle du fer dans le contrôle de la pompe biologique de CO2 de l'océan austral." Brest, 2001. http://www.theses.fr/2001BRES2041.
Full textThis work concerns the role played by iron in controlling the CO2 biological pump in the Southern Ocean. Iron, indeed, is a micro-nutrient essential to life and numerous experiments have shown that its subnanomolar concentrations in the water column (co)-limited the primary production in various oceanic areas, e. G. In the Southern Ocean. The thesis is divided in two complementary parts, a geochemical part and a biogeochemical one. The geochemical part aims at a better understanding of the oceanic geochemical cycle of iron. It presents measurements of dissolved iron and manganese in the wake of the Kerguelen Islands (Bucciarelli et al. 2001) and of dissolved and total dissolvable iron in the open Southern Ocean (Crozet basin). The samplings were conducted as part of the Antares program (France JGOFS), during the Antares 3 cruise in the wake of the Kerguelen island, and during the Antares 4 cruise in the Crozet Basin. The data give insigths into the sources and sinks of iron in the Indian sector of the Southern Ocean. The biogeochemical part focuses on the effects of iron stress on natural phytoplanktonic community on one hand (Blain et al. 2001, Blain et al. 2002, Sedwick et al. 2002), and on laboratory monospecific cultures of three species of diatoms on the other hand. A decoupling between the cycles of silicon, carbon and nitrogen has been shown under iron stress conditions. The decoupling is quantified in a range of iron concentrations varying from iron-limiting to iron-sufficient conditions
Book chapters on the topic "Pompe à carbone"
Glusker, Jenny Pickworth, and Kenneth N. Trueblood. "Introduction." In Crystal Structure Analysis. Oxford University Press, 2010. http://dx.doi.org/10.1093/oso/9780199576340.003.0009.
Full textEmsley, John. "Lead murders." In The Elements of Murder. Oxford University Press, 2005. http://dx.doi.org/10.1093/oso/9780192805997.003.0021.
Full textConference papers on the topic "Pompe à carbone"
Debnath, Biplab K., Ujjwal K. Saha, and Niranjan Sahoo. "Effect of Compression Ratio on the Performance Characteristics of a Palm Oil Methyl Ester Run Diesel Engine." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65135.
Full textDebnath, Biplab K., Niranjan Sahoo, and Ujjwal K. Saha. "Experimental Analysis of Emulsified Palm Oil Methyl Ester Towards Alternative Diesel Fuel." In ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/esda2012-82033.
Full textChai Ching Hsia, Ivy, Mohd Firdaus Abdul Wahab, Nur Kamilah Abdul Jalil, Abigail Harriet Goodman, Hazratul Mumtaz Lahuri, and Sahriza Salwani Md Shah. "Accelerated Methanogenesis for the Conversion of Biomethane from Carbon Dioxide and Biohydrogen at Hyperthermophilic Condition." In International Petroleum Technology Conference. IPTC, 2023. http://dx.doi.org/10.2523/iptc-22744-ea.
Full textShakir, A. N. A., M. A. Sohaimi, D. N. A. Wahid, and J. Salihon. "Effects of variations in palm oil mill effluent (POME) on carbon dioxide sequestration by microalgae and their optimisation." In 4th IET Clean Energy and Technology Conference (CEAT 2016). Institution of Engineering and Technology, 2016. http://dx.doi.org/10.1049/cp.2016.1343.
Full text"Assessment of enablers and disablers of environment-food-energy-water nexus in biomass value chain." In Sustainable Processes and Clean Energy Transition. Materials Research Forum LLC, 2023. http://dx.doi.org/10.21741/9781644902516-43.
Full text