Tesis sobre el tema "Carbon transfer"
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M, Higgins Eleanor. "Proton transfer at carbon". Thesis, Durham University, 2007. http://etheses.dur.ac.uk/2640/.
Texto completoMoore, D. R. "Carbon transfer in liquid sodium". Thesis, University of Nottingham, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371130.
Texto completoPaton, Keith Richard. "Electromagnetic energy transfer into carbon nanotubes". Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608860.
Texto completoViel, David William. "Muon transfer from muonic deuterium to carbon". W&M ScholarWorks, 1994. https://scholarworks.wm.edu/etd/1539623853.
Texto completoCarney, Kevin. "Supercritical Carbon Dioxide Extraction". DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1755.
Texto completoGregory, Alison Jane. "Carbon transfer from barley to barley powdery mildew". Thesis, University of Southampton, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359174.
Texto completoBeachey, Adam. "Electron transfer in protein-carbon nanotube hybrid structures". Thesis, Cardiff University, 2017. http://orca.cf.ac.uk/111309/.
Texto completoAbu, Hajer Ahmad. "Enhancing an Air to Liquid Mass Transfer Unit". Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1573875898139361.
Texto completoDelport, Géraud. "Non-convalent functionalization of carbon nanotubes : From the organization of surfactants to the self-assembly ofporphyrins". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLN075/document.
Texto completoThis manuscript presents an experimental study on the process of coverage of single-wall carbon nanotubes by organic dyes molecules. Due to the exceptional electronic properties and the monolayer carbon structures of such nanotubes, a modification of their physico-chemical environment has a great influence on their optoelectronic properties. The consequences of this surface functionalization are studied by means of optical spectroscopy. The process of non covalent functionalization of surfactant suspended nanotubes by porphyrin molecules is separated in three complementary studies. The first one details the kinetic aspects of this reaction process. In particular, the role of the organization of the surfactant environment will be highlighted. This allows to understand and control the reaction timescale. On the second hand, a comprehensive thermodynamic study of the nanotube/porphyrins interaction is performed. The associative behavior of the porphyrin during the interaction with the nanotube is evidenced. Then, the spectral characteristics of the porphyrin when it is adsorbed on a carbon surface is discussed. A dipole-dipole coupling model is developed to understand such effects. This model allows to highlight the geometry followed by the molecules when they are organized on the carbon template (nanotube or graphene)
Fedorenko, O. O. y J. K. Warchoł. "Structural and mass transfer characteristics of carbon-fiber materials". Thesis, Київський національний університет технологій та дизайну, 2017. https://er.knutd.edu.ua/handle/123456789/6750.
Texto completoPierce, Matthew Ryan. "Microvascular Heat Transfer Analysis in Carbon Fiber Composite Materials". University of Dayton / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1280944914.
Texto completoParlapalli, Rohit. "Effect of twist on load transfer and tensile strength in carbon nanotube bundles". University of Cincinnati / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1382372894.
Texto completoHu, Tao. "Non-covalent functionalization of carbon nanostructures : a DFT study". Thesis, Toulouse, INSA, 2013. http://www.theses.fr/2013ISAT0011/document.
Texto completoNon-covalent doping of carbon nanostructures by charge transfer from/to donor/acceptor molecules (EDA) or by H2SO4 molecules, be it with holes or electrons, is usually thought as potentially interesting for many applications of carbon based nano-devices. However, from a theoretical point of view, little is known about such “charge transfer” processes.Employing first-principles method based on Density Functional Theory (DFT), we have studied in details, and proposed a model to rationalize, the interaction between a prototypical donor molecule the tetrathiafulvalene (TTF), a standard acceptor organic molecule, tetracyanoethylene (TCNE) and carbon nanostructures: graphene layer and SWNTs with various chiral indices. Main results concern structural and thermodynamic aspects including dispersion forces effects, and evidently electronic structure modifications of the nanostructures. Various adsorption modes and concentration effects have been investigated. At very low coverage values, we have reported a charge transfer between graphene and TCNE or TTF. Moreover, we have shown that the charge transfer can be enhanced by increasing the concentration of those two EDA molecules, as it has been demonstrated experimentally. Those results are beneficial for comprehending the nonchemical doping mechanism in graphene structure by means of charge transfers. Considering the interaction between these prototypical molecules and carbon nanotubes, we have found that charge transfers tend to decrease while the curvature of nanotube is increasing. Besides, a strong influence of the metallic/semi-conductor character of the SWNTs can be observed and be explained by the change of polarisability of the curved carboneous substrates. Additionally, we have studied the adsorption properties of sulfuric acid molecules, in its non-hydrated form, on carboneous nanostructures. Against the common believe, no charge transfer is observed in the H2SO4@graphene or H2SO4@CNTs cases, even at very high concentrations. Instead, in order to elucidate the origin of p-doping observed experimentally, we have proposed that molecule is responsible of the reversible doping. Besides we have shown that a proton transfer could cause the experimental phenomenon of crystallization of H2SO4 molecules on SWNT’s surface. Finally in such process, defects like vacancy are of first importance, since they could provide anchorage points for hydrogen atoms. The results of the present work will certainly help to understand the charge transfer and doping mechanism of carbon nanostructures by means of non-covalent functionalization, which is a promising method for their future applications
Faithfull, Carolyn. "Productivity and carbon transfer in pelagic food webs in response to carbon, nutrients and light". Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-43467.
Texto completoLake ecosystem response to environmental change
Lansangan, Roberto M. "Gravitationally induced mass transfer of carbon dioxide in hydrocarbon liquids /". Access abstract and link to full text, 1986. http://0-wwwlib.umi.com.library.utulsa.edu/dissertations/fullcit/8703999.
Texto completoCross, Robert. "Processing of vertically aligned carbon nanotubes for heat transfer applications". Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/31828.
Texto completoCommittee Chair: Graham, Samuel; Committee Member: Das, Suman; Committee Member: Joshi, Yogendra. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Bowling, Robert John. "Effects of microstructure on heterogeneous electron transfer at carbon electrodes /". The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487671108306195.
Texto completoDuVall, Stacy Hunt. "Electron transfer kinetics of catechols on modified glassy carbon electrodes /". The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488199501404497.
Texto completoLiao, Shengming. "Heat transfer of supercritical carbon dioxide in MINI/MICRO tubes /". View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?MECH%202002%20LIAO.
Texto completoIncludes bibliographical references (leaves 145-150). Also available in electronic version. Access restricted to campus users.
Miller, Jacob. "Modelling the Effect of Catalysis on Membrane Contactor Mass Transfer Coefficients for Carbon Dioxide Absorption Systems". University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627662756315225.
Texto completoNoon, Michael S. "Mass transfer of near critical carbon dioxide in poly(methyl methacrylate)". Connect to resource, 2007. http://hdl.handle.net/1811/25012.
Texto completoTitle from first page of PDF file. Document formatted into pages: contains vii, 28 p.; also includes graphics. Includes bibliographical references (p. 26-28). Available online via Ohio State University's Knowledge Bank.
Keller, Klaus 1966. "Chemical enhancement of carbon dioxide transfer across the air-sea interface". Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/35997.
Texto completoVijaya, Kumar Supradeep. "Measurement of Carbon Dioxide Mass Transfer Rate for Three Membrane Morphologies". Ohio University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1399388795.
Texto completoChen, Peihong. "Effects of surface chemistry on electron transfer kinetics at carbon electrodes /". The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487935573773327.
Texto completoCoularis, Cindy. "Dynamique et transfert du carbone dans le bassin versant de la Loire : Traçage par les isotopes du carbone". Thesis, Université Paris-Saclay (ComUE), 2016. http://www.theses.fr/2016SACLS132.
Texto completoThis thesis focuses on carbon cycle in the Loire River and its major tributaries. It aims to (1) use isotopic composition (14C and 13C) to describe the sources, the nature and the age of the Dissolved Inorganic and Organic Carbon (DIC, DOC) and of the Particular Organic Carbon (POC) sampled during four campaigns in 2013 and 2014; and (2) to use anthropogenic 14C found in the liquid releases of the 5 Nuclear Power Plants (NPP) operating in the basin as a tool to track carbon transfer between the different phases.Archaeologists demonstrated that 14C ages of samples coming from bones or non-human material (potteries, ceramics, sediments,…) are not in balanced with the atmosphere of the time they were created and thus need to be corrected. This bias stems from the age of water (as beverage or raw material), and more precisely the DIC age, also known as reservoir age. In the Loire River and its tributaries, DIC mainly comes from erosion and dissolution of the geological substratum. DIC concentrations are higher in the carbonated areas located in the middle Loire. As the reservoir ages are directly related to the DIC content, their values present a wide spatial variability (from 135 to 2251 yr 14C BP) because the Loire River and its tributaries cross areas with variable content of carbonates among their geological formations.Also, DIC is mainly absorbed during photosynthetic processes that produce algal POC. Algal POC and detrital POC form the particulate organic matter (OM). POC concentrations follow a temporal cycle with higher values during Spring time. Algal carbon marking depends on the DIC isotopic signature used by the chlorophyll synthesis. Reservoir ages calculated from POC values range from 306 to 1597 14C years, with the same spatial and temporal variation as the DIC. Algal carbon ratio, ranging from 2 to 100%, depends on the river, and climatic and hydrologic conditions. However, no systematic pattern can be found. The detrital fraction of POC has an activity close to the activity of POC and algal POC involving that the component is not of geological origin and thus, it is not refractory.The decomposition of this particular OM, the metabolic activity of organisms (lysis and exudation) and the input of old OM from the river, the soil or the groundwater are all sources for DOC production. Thus, DOC concentrations follow the same seasonal pattern as the POC. However, DOC contents are higher than the POC ones, and increase a bit from upstream to downstream (±1mg/L). It can be aged if POC and/or exported OM are old. Thus reservoir ages in the DOC range from 101 to 2494 14C years in April 2013, with older ages in agricultural areas.Not only did the use of anthropogenic 14C made it possible to visualize transfers between different phases, but also it confirmed the emission of enriched 14CDIC and unconfirmed the emission of 14CPOC and 14CDOC by the NPP. However, the 14CDIC activity does not represent the complete activity of the release because of water-atmosphere exchange involving 14C outflow. The marked POC records the initial NPP liquid release activity using the DIC from the NPP. The POC being isolated from the atmosphere, the POC measured activity is close to the originate activity in the release.All these data combined to the understanding of the transfers processes between DIC, POC and DOC will make it possible to improve the existing prediction model and, eventually, to anticipate the behavior of this radionuclide in the river from its emission to its arrival in the estuary and then in the Atlantic Ocean
Johnson, Alan M. "Relaxation of Vibrationally Excited Trifluorobenzene and Tetrafluorobenzene by Collisions with Carbon Dioxide". BYU ScholarsArchive, 2009. https://scholarsarchive.byu.edu/etd/2177.
Texto completoHassan, Mohamed Abdel-Rahman Mohamed. "Flow boiling of pure and oil contaminated carbon dioxide as refrigerant : with focus on heat transfer and pressure drop /". Online version, 2004. http://bibpurl.oclc.org/web/31435.
Texto completoVishwanath, Indushri Vikas. "Development of a Catalytic System for Air-to-Liquid Mass Transfer Mechanism". Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1479135783395588.
Texto completoEssenhigh, Katherine Anne. "Energy transfer and chemistry of carbon monoxide in vibrational mode non-equilibrium". Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1124292824.
Texto completoTitle from first page of PDF file. Document formatted into pages; contains xiv, 172 p.; also includes graphics (some col.). Includes bibliographical references (p. 167-172). Available online via OhioLINK's ETD Center
Kendrick, Adrian Hugh. "Pulmonary transfer factor for carbon monoxide in exercise and its clinical applications". Thesis, University of Bristol, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239917.
Texto completoMuchmore, Suzi. "Knowledge transfer : a qualitative investigation of the UK low carbon innovation system". Thesis, Loughborough University, 2018. https://dspace.lboro.ac.uk/2134/35118.
Texto completoKhaliji, Oskouei Mohammadhasan. "Thermodynamic and heat transfer analysis of an activated carbon-R723 adsorption system". Thesis, University of Warwick, 2016. http://wrap.warwick.ac.uk/95081/.
Texto completoBetts, Makayla N. (Makayla Nicole). "Gene transfer history of carbon fixation proteins constrains marine cyanobacteria divergence times". Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/118026.
Texto completoCataloged from PDF version of thesis. "June 2018."
Includes bibliographical references (pages 18-24).
Carboxysomes provide an avenue for narrowing the timing of evolutionary events in groups of cyanobacteria that are ecologically dominant in modem marine environments - groups that may have an integral role in oxygenating the Earth's atmosphere. Here I show that using concatenated phylogenies of carbon fixation proteins better informs the horizontal gene transfer event that brought carboxysomes from purple sulfur bacteria into marine cyanobacteria and that this gene history aids in constraining the evolutionary timing of carbon fixation. Genes encoding the proteins for the a-carboxysomal shell as well as RuBisCO and carbonic anhydrase are co-located on the genomes of various cyanobacteria in the Prochlorococcus and Synechococcus groups. Previous studies have shown that these genes were likely horizontally transferred together from Chromatiales (purple sulfur bacteria), a group of phototrophic Gammaproteobacteria. While many of these genes are highly conserved and thus yield poorly resolved phylogenies, their concatenation clarifies a shared evolutionary history. This work integrates gene transfer with molecular clock calibration methods to determine divergence times. Accordingly, I evaluate the relationship between atmospheric evolution and the ecology of important groups of phototrophs.
by Makayla N. Betts.
S.M. in Geophysics
Rivero, Pacho Ángeles María. "Thermodynamic and heat transfer analysis of a carbon-ammonia adsorption heat pump". Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/66341/.
Texto completoDahlgren, Kristin. "Food web structures and carbon transfer efficiencies in a brackish water ecosystem". Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-38014.
Texto completoCramer, Theodore A. "Membrane gas transfer of methane and carbon dioxide in submerged coal deposits". Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1400969221&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Texto completoKarabelchtchikova, Olga. "Fundamentals of Mass Transfer in Gas Carburizing". Digital WPI, 2007. https://digitalcommons.wpi.edu/etd-dissertations/424.
Texto completoPathak, Sayali V. "Enhanced Heat Transfer in Composite Materials". Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1368105955.
Texto completoSakata, Mazuki. "Phase-transfer Catalyzed Asymmetric Synthesis of All-carbon Quaternary Centers and Tetrasubstituted Allenes". 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/175139.
Texto completoMaligaspe, Eranda. "Carbon nanostructured based donor-acceptor conjugates for light-induced energy and electron transfer". Diss., Wichita State University, 2010. http://hdl.handle.net/10057/3636.
Texto completoThesis (Ph.D.)--Wichita State University, College of Liberal Arts and Sciences, Dept. of Chemistry
Boudoire, Guillaume. "Architecture et dynamique des systèmes magmatiques associés aux volcans basaltiques : exemple du Piton de la Fournaise". Thesis, La Réunion, 2017. http://www.theses.fr/2017LARE0022/document.
Texto completoConstraining the architecture and dynamics of magma systems is fundamental in volcanology. The main objectives of this study are to (1) constrain the architecture of the whole plumbing system of Piton de la Fournaise, and (2) study magma evolution and transfers from the deepest roots of the plumbing system. Coupling magma petrogeochemistry and diffusive soil degassing, we develop an integrated approach, focused on the western flank of the volcano. This zone shows evidences of a recent eruptive activity, poorly documented, but potentially related to deep magma processes. Our results allow to confirm the offset of the deep part of the Piton de la Fournaise plumbing system beneath the western flank of the volcano. We demonstrate that magma stored in the deepest roots of the plumbing system display a geochemical variability, mainly related to minor mantle source heterogeneities and to polybaric crystallization and assimilation processes. We show that soil CO2 fluxes on the western flank of the volcano record early magma degassing in the lithospheric mantle. We highlight that temporal variations of soil CO2 flux may be used to detect magma replenishement of the central magmatic system by deep magma transfers, hardly detectable by the geophysical network.Our results opens exciting prospects to improve the monitoring of deep magma processes below volcanoes, even in tropical conditions
Yang, Yue. "Thermal Conductivity of Carbon Fibre Fabrics and Multi-Scale Composites with Heat Transfer Simulations for RFI Manufacturing". Thesis, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/30252.
Texto completoKerr, Brittany. "Strengthening Potential of Single-Walled Carbon Nanotubes in Phenolic Resin Composites". Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2219.
Texto completoM.S.
Department of Mechanical, Materials and Aerospace Engineering;
Engineering and Computer Science
Materials Science & Engr MSMSE
Wasem, Klein Felipe. "Photoactive polymer – carbon nanotubes hybrid nanostructures". Thesis, Strasbourg, 2021. http://www.theses.fr/2021STRAE004.
Texto completoThe objective of this thesis is the preparation of conjugated polymers (P3HT and a derivated copolymer) – carbon nanotubes hybrid materials and their characterization through different spectroscopies and transmission electron microscopy. Non-covalent nanohybrids can be obtained by sonicating both components together in THF. The interaction between both components leads to the wrapping of the polymer around the carbon nanotubes as well as the formation of polymer aggregates on the surface of the nanotubes. The effect of different parameters such as the polymer chain length are described. Covalent nanohybrids can be obtained using a specially designed copolymer bearing an aniline at the end of its side chain. Optical and Raman spectroscopies indicate a low level of functionalization, and suggest that the polymer chains are in a more disordered state compared to non-covalent nanohybrids. Preliminary studies show that the obtained copolymer can be used for functionalizing carbon nanotube based devices. Modification of electrical properties of the devices were small and compatible with the low functionalization degree, but the induced defects allow observation of a photocurrent
Richard, Lannig. "Impact du dioxyde de carbone sur la levure Saccharomyces cerevisiae : caractérisation du transfert liquide/gaz et implications sur les métabolismes énergétiques". Thesis, Toulouse, INSA, 2014. http://www.theses.fr/2014ISAT0041/document.
Texto completoThe aim of this work was to evaluate the impact of carbon dioxide (CO2) on the physiology of the yeast Saccharomyces cerevisiae, more precisely on the oxidative metabolism and on the onset of alcoholic fermentation. CO2 is involved in the interactions between transfer phenomena and biological phenomena in fermenters. The knowledge of the dissolved CO2 concentration and then of the CO2 liquid / gas mass transfer phenomena is required to assess the impact of this compound on the yeast physiology.Investigation of CO2 liquid / gas in biological reactors has been carried out using simulations and experiments taking into consideration both biological and transfer phenomena. CO2 supersaturation was observed in an intensive fed-batch culture of S.cerevisiae and may be caused by an asymmetric bubble size distribution of the gas phase. We demonstrated that CO2 liquid / gas transfer cannot be described based on O2 gas / liquid transfer and that CO2 concentration must be estimated through direct measurement.The impact of CO2 on the oxidative metabolism of S.cerevisiae was investigated using chemostat cultures submitted to different step-increases of the dissolved CO2 concentrations with direct measurement of the dissolved CO2 concentration. The yeast culture showed a transient response with an increase of the specific respiration rates ranging from with a +24 to +37 % during + 2.96 mM and+5.29 mM dissolved CO2 step-increases. This transient response was followed by a long-term response characterized by a decrease of the YATP value with increasing dissolved CO2 concentrations (down to -18% when the CO2 concentration increased from 1.6 mM to 17 mM).The impact of CO2 on the onset of the Crabtree effect in S.cerevisiae was investigated using the accelerostat technique with and without CO2 enrichment. The onset of alcoholic fermentation occurred at a much lower specific growth rate (0.122 h-1) and specific oxygen consumption rate (5.2 mmoleO2.gX-1.h-1) in CO2 enriched conditions than without CO2 enrichment (0.256h-1 and 8.65 mmoleO2.gX-1.h-1 respectively). These modifications may be linked with a decreased cellular adaptability to changing environment
Sethi, Sunny. "Carbon Nanotube Based Functional Superhydrophobic Coatings". University of Akron / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1271346171.
Texto completoMaag, Gilles. "Monte Carlo radiative heat transfer analysis of a CH₄ flow laden with carbon particles". Zürich : ETH, Eidgenössische Technische Hochschule Zürich, Institute of Energy Technology, 2006. http://e-collection.ethbib.ethz.ch/show?type=dipl&nr=283.
Texto completoAjja, Rameshwar. "Numerical heat transfer analysis of carbon-based foams for use in thermal protection system". FIU Digital Commons, 2006. http://digitalcommons.fiu.edu/etd/1179.
Texto completoCenci, Steven Michael. "Acoustic agitation of dense carbon dioxide/water mixtures : emulsification, mass transfer, and reaction engineering". Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5381/.
Texto completoSternitzke, Kent D. "Laser activation of heterogeneous electron-transfer processes at carbon electrodes : effect on analytical applications /". The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487683756123637.
Texto completo