Дисертації з теми "Transfer Interactions"
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Villain, Adrien. "Étude génomique des interactions diatomées-bactéries." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0202/document.
Повний текст джерелаDiatoms are ubiquitous microalgae that contribute approximately 25% to the primary production worldwide. Many interactions, either positive, neutral or negative, have been documented between diatoms and bacteria. Diatom genomes also harbor numerous genes of putative bacterial origin.We are studying Asterionella formosa, a freshwater pennate diatom. We characterized the community using a combination of omics and laboratory techniques. We reconstructed of the genome of the diatom as well as 30 individual genomes from co-cultured bacterial species and investigated metabolisms that could support diatom-bacteria interactions. 16S rRNA sequencing revealed that the abundance of some bacterial species was highly variable over the course of A. formosa growth. Some species seemed preferentially attached to the diatom while others were mainly free-living. Then, the reference sequence of the A. formosa genome was improved by additional long-read (Pacbio) sequencing. Last, relationships between diatoms and bacteria were investigated at a broader evolutionary scale, by looking at horizontal gene transfers using transcriptomic data of a hundred marine diatoms.This work is a first step in the study of the dynamic and complex bacterial community associated with the diatom A. formosa. The accurate identification and the reconstruction of the genome of these bacteria will enable further in silico predictions based on metabolic networks and new omics experiments using transcriptomic or metabolomic. This work already contributes to a global effort to study diatoms by the means of genomics
Mason, Brian L. "An experimental investigation of charge transfer during ice contact interactions /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/9769.
Повний текст джерелаKhan, Anuja. "Solution structure and interactions of electron transfer proteins." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415724.
Повний текст джерелаMartin, Sarah Friede. "Fluorescence resonance energy transfer studies of protein interactions." Thesis, St Andrews, 2008. http://hdl.handle.net/10023/537.
Повний текст джерелаNielsen, Jens Munk. "Species interactions and energy transfer in aquatic food webs." Doctoral thesis, Stockholms universitet, Institutionen för ekologi, miljö och botanik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-123600.
Повний текст джерелаAt the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Manuscript. Paper 4: Manuscript.
Orange, Nicholas Brian. "Transfer Entropy Analysis of the Interactions of Flying Bats." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/53955.
Повний текст джерелаMaster of Science
Walker, Sarah Elizabeth. "Functional Studies of Transfer RNA Interactions in the Ribosome." The Ohio State University, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=osu1217605676.
Повний текст джерелаMoellman, Nicholas S. "ESSAYS ON TRANSFER-PROGRAM INTERACTIONS AMONG LOW-INCOME HOUSEHOLDS." UKnowledge, 2018. https://uknowledge.uky.edu/economics_etds/36.
Повний текст джерелаMahmutovic, Anel. "Reaction-Diffusion kinetics of Protein DNA Interactions." Doctoral thesis, Uppsala universitet, Beräknings- och systembiologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-263527.
Повний текст джерелаGardel, Emily Jeanette. "Microbe-electrode interactions: The chemico-physical environment and electron transfer." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:11185.
Повний текст джерелаEngineering and Applied Sciences
Burch, Anita M. "Electrostatic interactions and the function of electron transfer haem proteins." Thesis, University of East Anglia, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302998.
Повний текст джерелаPanitchob, Nuttanont. "Computational modelling of amino acid transfer interactions in the placenta." Thesis, University of Southampton, 2015. https://eprints.soton.ac.uk/384933/.
Повний текст джерелаSun, Haili. "Ray-tracing internal wave/wave interactions and spectral energy transfer /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/10973.
Повний текст джерелаHildebrandt, Nico, Loïc Charbonnière, Raymond F. Ziessel, and Hans-Gerd Löhmannsröben. "Quantum dots as resonance energy transfer acceptors for monitoring biological interactions." Universität Potsdam, 2006. http://opus.kobv.de/ubp/volltexte/2007/1221/.
Повний текст джерелаSawyer, Elizabeth Bryony. "Biophysical analysis of haem-protein interactions in bacterial haem transfer systems." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611709.
Повний текст джерелаKim, Sung Jin. "Interfacial interactions in heat transfer and fluid flow through porous media /." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487675687171761.
Повний текст джерелаBarthram, Anita Marie. "Metal-metal interactions in polynuclear complexes of ruthenium and osmium." Thesis, University of Bristol, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326683.
Повний текст джерелаMcGrath, Caith Thomas. "An experimental study of electron transfer and emission during particle-surface interactions." Thesis, Queen's University Belfast, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326351.
Повний текст джерелаPonomariov, Branco Leonidov. "Student Centrality in University-Industry Interactions." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11633.
Повний текст джерелаBooker, Annette Casandra. "Optical Characterization and Evaluation of Dye-Nanoparticle Interactions." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/36370.
Повний текст джерелаMaster of Science
Bashforth, Pauline S. "Mathematical modelling of interactions between a hot liquid and a cold horizontal substrate." Thesis, University of Bristol, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294615.
Повний текст джерелаTeychené, Johanne. "Caractérisation multi-échelle des interactions sucre-électrolyte pour une meilleure compréhension du transfert en nanofiltration." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30339/document.
Повний текст джерелаDifferent studies have shown that the presence of electrolyte modifies the nanofiltration performances and that the increase of the neutral solute transfer is mainly governed by the modification of the solute properties (neutral solute / electrolyte interactions). However, the development of such membrane processes is still limited since it is hardly possible to predict the process performances, In this context, the aim of this work is to study the neutral solute / electrolyte interactions using a fundamental multi scale approach in order to improve the knowledge of the transfer mechanisms taking place through nanofiltration membranes. More precisely, the objective is to understand how the ions act on the hydration properties of the saccharides and their transfer through a nanofiltration membrane. Firstly, the saccharide volumetric properties (xylose, glucose, sucrose), which characterize the solute hydration at the macroscopic scale, are determined in presence of various electrolytes (LiCl, NaCl, KCl, Na2SO4, K2SO4, CaCl2, MgCl2, MgSO4). The results show that the saccharide dehydration is due to the predominance of the saccharide / ions interactions depending on the ions' properties (valence, size). Secondly, quantum mechanics is used to describe the hydration properties of ions and saccharides, alone and then in a mixture at the microscopic scale. It is shown that both saccharide and ions are dehydrated and that the saccharides are more dehydrated for increasing saccharide / ions interactions number, which in turn increases with the ion's coordination number in water. It is also shown that the species hydration properties, obtained at different scales are consistent. Finally, quantitative correlations between the species hydration properties and the saccharide mass transfer parameters are obtained. Thus, from these promising results, further work will be devoted to improve the prediction of the performance of nanofiltration for the treatment of solutions containing organic solutes in the presence of electrolyte
Eggleston, David. "An investigation into frictional surface interactions and their effect on brake judder." Thesis, Sheffield Hallam University, 2000. http://shura.shu.ac.uk/19601/.
Повний текст джерелаHoffert, Kara Anne. "Maternal-fetal interactions and angiogenesis in early bovine pregnancies derived from nuclear transfer /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2005. http://uclibs.org/PID/11984.
Повний текст джерелаKuo, Long-Sheng 1969. "Non-equilibrium energy transfer and phase change during intense picosecond laser-metal interactions." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/34346.
Повний текст джерелаIncludes bibliographical references (leaves 55-57).
Laser interactions with metals involve absorption of photon energy by electrons, energy coupling between electrons and the lattice, and energy transport by diffusion of electrons and lattice vibrations. During picosecond laser irradiation of metal films, electrons and the lattice are not in thermal equilibrium. On the other hand, rapid laser heating produces a large degree of superheating and undercooling during melting and solidification. First, this work investigates experimentally non-equilibrium heating processes during intense picosecond laser heating of metal films. Results show excellent agreement with predictions of the two-step radiation heating model. Second, this work develops a general model to characterize both non-equilibrium energy deposition and phase change processes. The predictions show that the non-equilibrium heating processes significantly increase the laser melting threshold, enlarge the thermal-affected region, reduce the lattice temperature rise, prolong the phase change duration, and reduce the solidification speed. These results are important for materials processing using ultrashort pulsed lasers.
by Long-Sheng Kuo.
S.M.
Gangolf, Thomas. "Intense laser-plasma interactions with gaseous targets for energy transfer and particle acceleration." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLX110.
Повний текст джерелаLaser-matter interaction is studied mostly with near-infrared (NIR) lasers as they can generate the most intense pulses. For these lasers, targets between 0.05 to 2.5 times the critical density are challenging to create but offer interesting prospects. In this thesis, novel high-density Hydrogen gas jet targets with densities in this range are used in view of two applications:First, ions are accelerated by collisionless shock acceleration (CSA). Upon interaction of a NIR laser with a slightly overcritical gas jet target, a collimated, quasi-monoenergetic proton beam is generated in forward direction. Simulations indicate the formation of a collisionless shock and acceleration of protons both by the shock and target normal sheath acceleration (TNSA) on the target rear surface under these conditions. These directed, monoenergetic particle bunches are more suitable for many applications than the broadband particle beams already generated routinely.Second, at densities between 0.05 and 0.2 times the critical density, energy is transferred from one laser pulse (pump) to a counterpropagating pulse (seed), via Stimulated Brillouin Backscattering in the strongly-coupled regime (sc-SBS). For the case of broad- band (60 nanometers) pulses, the role of the preionization for pulse propagation and both spontaneous and stimulated Brillouin backscattering are studied, including the influence of the chirp. It is shown that for narrower bandwidths, the seed pulse is ampli- fied by tens of millijoules, and signatures of efficient amplification and pump depletion are found. This concept aims at amplifying laser pulses to powers above the damage thresholds of solid state amplifiers
Conant, William Christopher. "Interactions between aerosol, water vapor, and solar radiation /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p3025938.
Повний текст джерелаTyson, Shelly. "Magma-cryosphere interactions on Mars : the influence of heat-transfer mechanisms on surface morphology." Thesis, Lancaster University, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.727389.
Повний текст джерелаHarpe, Anke von. "Polyethylenimine derivatives for gene transfer : Polymer synthesis, coupling of ligands and interactions with DNA /." Marburg : Görich & Weiershäuser, 2000. http://www.gbv.de/dms/bs/toc/319704181.pdf.
Повний текст джерелаHodson, Andrew. "Climate, hydrology and sediment transfer process interactions in a sub-polar glacier basin, Svalbard." Thesis, University of Southampton, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241002.
Повний текст джерелаMonaco, Serena. "Novel saturation transfer difference (STD) NMR approaches to understand biologically relevant protein-carbohydrate interactions." Thesis, University of East Anglia, 2018. https://ueaeprints.uea.ac.uk/68419/.
Повний текст джерелаShaffer, Irena Marie. "Effects of Echolocation Calls on the Interactions of Bat Pairs using Transfer Entropy Analysis." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/98672.
Повний текст джерелаMaster of Science
Manyanimalspeciesexhibitcollectivebehaviorwheregroupsofanimalscoordinatetheir motion, as in flocking or schooling. Many species of bats also demonstrate this behavior. Bats are unique among these animals in that they use echolocation as their primary means of navigation. Bats produce ultrasonic pulses or calls and listen to the returning echo to "visualize" their environment. Bats using echolocation in large groups run the risk of other bat calls interfering with their ability to hear their own calls. They have developed various waystopreventinterferencewhichmayleadtodifferentbehaviorwhenflyingwithotherbats thanwhenflyingalone. Fielddatafromamaternitycolonyofgraybatswerecollectedusing a system of cameras and microphones. These data were analyzed to quantify the interaction between pairs of bats and to determine the effect echolocation calls have on this interaction. Results show that there is evidence of information transfer about both the speed of the bats and their turning behavior. There was also evidence of a possible leader-follower interaction in some subsets of the data.
Allcock, Philip. "A microscopic quantum electrodynamical theory of novel nonlinear optical processes." Thesis, University of East Anglia, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338097.
Повний текст джерелаBellows, Benjamin Davis. "Characterization of nonlinear heat release-acoustic interactions in gas turbine combustors." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-03262006-205604/.
Повний текст джерелаDr. Jeffrey Cohen, Committee Member ; Dr. Jerry Seitzman, Committee Member ; Dr. Jeff Jagoda, Committee Member ; Dr. Ben Zinn, Committee Member ; Dr. Tim Lieuwen, Committee Chair.
Öcalan, Özel Sila. "University-industry interactions : understanding university licensing strategies and beyond." Thesis, Strasbourg, 2018. http://www.theses.fr/2018STRAB009/document.
Повний текст джерелаThis thesis primarily focuses on university licensing. To understand the social impact of the university licensing strategies, we examine the link between the degree of exclusivity of licenses and the various characteristics of the licensed inventions. The theoretical and empirical findings of our research suggest that the practices of university technology transfer offices (TTOs) may not always be optimal, underlying the fact that there may still be room for the improvement. We also suggest that, when the innovations are sequential, universities might introduce alternative open source licensing (OSL) strategies. Furthermore, we expand our study by examining the dynamic interactions between various formal and informal channels of transfer. Our longitudinal qualitative methodology suggests that, dynamic interaction creates a strong cumulative effect with respect to the research valorization activity and reinforces the collective dimension of valorization
El-Jaby, Samy. "[An]Illustrated Re-visitation of Energy Transfer and Energy Absorption in Photon Interactions with Matter." Thesis, McGill University, 2009. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95609.
Повний текст джерелаCette thèse révise les procédés de transfer et d'absorbtion d'énergie causés par l'interaction des photons avec la matière en accordant une attention toute particulière aux calculs du coefficient de transfert d'énergie massique et du coefficient d'absorbtion d'énergeie massique. Les concepts définissant ces coefficients son déjà bien établis, mais ils ne proposent pas une excellente comprehension des quantités dosimétriques reliées au transfert et à l'absorbtion d'énergie de même qu'à la relation existant entre l'énergie photonique et le numéro atomique absorbé. Une approche nouvelle et visuellement coherente est proposée afin de metre en lumière une relation fonctionnelle entre ces quantités et ces coefficients. De plus un application informatique, graphique, dynamique et interactive appelée PETAC (Photon Energy Transfer and Absorbtion Coefficients) à été devellopee pour aider les étudiants en physique médicale a visualiser et déduire intuitivement les lien entre les processus de transfert d'énergie, et d'absorbtion d'énergie dû à l'interaction des photons avec la matière .
Sena, A. M. P. "Density functional theory studies of surface interactions and electron transfer in porphyrins and other molecules." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/147572/.
Повний текст джерелаRay, Matthew Preston. "The dynamics of energy and charge transfer in low and hyperthermal energy ion-solid interactions." Connect to this title online, 2009. http://etd.lib.clemson.edu/documents/1252424536/.
Повний текст джерелаRiachy, Lina. "Nouvelle technique de nanoscopie de fluorescence par excitation non radiative pour l’étude des interactions membrane/substrat." Thesis, Troyes, 2017. http://www.theses.fr/2017TROY0017/document.
Повний текст джерелаThe objective of my thesis work was to develop a new technique of Non-radiative Excitation Fluorescence Microscopy to study the interactions membrane/substrate.This technique is achieved by coating the substrate with donor species, such as quantum dots (QDs). Thus the dyes are not excited directly by the laser source, as in common fluorescence microscopy, but through a non-radiative energy transfer.To prevent dewetting of the donor film, we have implemented a silanization process to covalently bond the QDs on the substrate. A monolayer of QDs was then deposited on only one side of the coverslips. We highlight the potential of our method through the study of Giant Unilamellar Vesicles (GUVs) labeled with DiD as acceptor, in interaction with surface functionalized with poly-L-lysine. In the presence of GUVs, we observed together a quenching of QDs emission and emission of DiD located in the membrane, which clearly indicated that non-radiative energy transfer from QDs to DiD occurs. By changing salt concentration in the solution, we have been able to finely control the force of the interaction and thus modify the equilibrium distance between the surface and the membrane. From quantitative measurements of quenching of QDs and fluorescence emitted by non-radiative transfer, we calculate the equilibrium distances and obtain a mapping of these distances with a nanometric optical resolution. Based on this study, our functionalization technique is also used to observe the adhesion of living cells, U87MG on different surfaces in order to observe their focal points
Deutsch, Christopher Wayne. "Discovery and Characterization of the Proteins Involved in the Synthesis of N⁶-Threonylcarbamoyl Adenosine, a Nucleoside Modification of tRNA." PDXScholar, 2016. http://pdxscholar.library.pdx.edu/open_access_etds/3080.
Повний текст джерелаDinkeloo, Kasia. "New Tools to Understand Mechanisms of Nutrient Transfer from Plants to Biotrophic Pathogens." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/97521.
Повний текст джерелаPh. D.
Li, Changhui. "Radiative interactions: I. Light scattering and emission from irregular particles. II. Time dependent radiative coupling of an atmosphere-ocean system." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4135.
Повний текст джерелаMarquart, Kyle Anthony. "pH as a control on interactions of methanogens and iron reducers." Thesis, Kansas State University, 2017. http://hdl.handle.net/2097/35567.
Повний текст джерелаDepartment of Geology
Matthew Kirk
A growing body of evidence demonstrates that methanogenesis and Fe(III) reduction can occur simultaneously. However, environmental controls on interactions between each are poorly understood. In this study we considered pH as a control on interactions between Fe(III) reduction and methanogenesis in anoxic sediment bioreactors. The reactors consisted of 100mL of synthetic aqueous media, and 1 g of marsh sediment amended with goethite (1mmol). One set of reactors received acidic media (pH 6), and the other alkaline media (pH 7.5). Each set received media containing acetate (0.25 mM) to serve as an electron donor. Control reactors, deficient in acetate, were also included. We maintained a fluid residence time of 35 days by sampling and feeding the reactors every seven days. For pH 6.0 and pH 7.5 reactors, the measured pH of effluent samples averaged 6.33 and 7.37, respectively. The extent of Fe(III) reduction and methanogenesis varied considerably between each set of reactors. More Fe(III) was reduced in the pH 6 reactors (646.39 μmoles on avg.) than the pH 7.5 reactors (31.32 μmoles on avg.). Conversely, more methane formed in pH 7.5 reactors (127.5 μmoles on avg.) than the pH 6 reactors (78.9 μmoles on avg.). Alkalinity concentrations during the middle and end of the experiment averaged 9.6 meq/L and 5.2 meq/L in pH 6 and pH7.5 reactors, respectively Although much less Fe(III) reduction occurred in pH 7.5 reactors, the relative abundance of Fe(III) reducers in them decreased little from levels observed in the pH 6 reactors. Sequences classified within Geobacter, a genus of bacteria known primarily as dissimilatory metal reducers, accounted for 22% and 13.45% of the sequences in the pH 6 and pH 7.5 reactors and only 0.8% of the sequences in the marsh sediment inoculum. In contrast, sequences classified within orders of methanogens were low in abundance, making up only 0.47% and 1.04% of the sequences in the pH 6 and pH 7.5 reactors, respectively. Mass balance calculations demonstrate that the amount of electron donor consumed by each group varied considerably between the sets of reactors. Expressed as a quantity of acetate, the reactions consumed about 160μM of electron donor each in pH 6 reactors. In contrast, methanogenesis consumed over 30 times more electron donor than Fe(III) reduction in the pH 7.5 reactors. Thus, the results of our experiment indicate that the decrease in electron donor consumption by Fe(III) reduction at basic pH was nearly matched by the increase in electron donor consumption by methanogens. Results of geochemical modeling calculations indicate that more energy was available for Fe(III) reduction in the pH 6.0 reactors than the pH 7.5 reactors, matching variation in Fe(III) reduction rates, and that the density of sorbed ferrous iron was higher in pH 6 reactors than pH 7.5 reactors. Thus, the calculation results are consistent with bioenergetics, but not variation in ferrous iron sorption, as a potential mechanism driving variation in the balance between each reaction with pH.
Roy, Subhradeep. "Multiscale Views of Multi-agent Interactions in the Context Of Collective Behavior." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78615.
Повний текст джерелаPh. D.
Bahner, Daniel T. "Interactions between faculty and Latina/o and White community college transfer students| A mixed methods study." Thesis, California State University, Fullerton, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=3663984.
Повний текст джерелаAlthough the number of community college Latina/o students is steadily growing, their completion and transfer rates lag behind other groups. Because the majority of Latina/o students begin their postsecondary education in community colleges only to transfer at very low rates, the long-storied promise of community colleges serving as "democracy's colleges" is more rhetoric than reality. Drawing upon Stanton-Salazar's (2004, 2011) work on the potential roles that institutional agents can play in working against the forces of educational stratification by lending their social capital to minority students, the purpose of this convergent mixed methods research was to examine the differences Latina/o and White potential transfer students report about the ways that faculty have facilitated or impeded their negotiation of the transfer process and the roles institutional agents filled in facilitating students' transfer progress.
The study followed a convergent mixed methods design, whereby 233 potential students completed an original survey concerning their interactions with faculty, and 14 potential transfer students participated in semi-structured interviews concerning their interactions with faculty while negotiating the transfer process. Analysis of the quantitative data collected through the survey revealed that students are generally pleased with their interactions with HCC faculty; and furthermore that Latina/o students rate their interactions with faculty more highly than White students do. From the qualitative data collected through the interviews eight themes emerged, including the importance of community colleges, social capital, developing goals, accepting responsibility for one's decisions, and caring faculty. Three convergences arose from combining the findings of the two separate modes of inquiry: (a) students are generally pleased with HCC faculty; (b) the importance of caring faculty; and (c) faculty serving institutional agents for students.
After the interpretations of these findings were discussed, as well as their implications for policy, theory, practice, and future research, three recommendations for action were offered.
Cranswick, Matthew A. "Gas-phase Photoelectron Spectroscopy and Computational Studies of Metal-thiolate Interactions: Implications to Biological Electron Transfer." Diss., The University of Arizona, 2008. http://hdl.handle.net/10150/195569.
Повний текст джерелаBaranova, Maria V. "Protein-Protein Interactions and Electron Transfer Associated with Cytochrome F and Plastocyanin From the Cyanobacterium Prochlorothrix Hollandica." Bowling Green State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1178243290.
Повний текст джерелаBaugh, Jeffrey Loren. "Structural changes of fibronectin during cell interactions and adsorption to surfaces measured using fluorescence resonance energy transfer /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/8083.
Повний текст джерелаMyagkiy, Andrey. "Mineralization of Nickel in saprolitic ore of New Caledonia : Dynamics of metal transfer and modeling of coupled geochemical and hydrodynamic processes." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0277/document.
Повний текст джерелаNew Caledonia hosts significant lateritic nickel reserves, and presently became the fifth largest Ni producer in the world. These deposits are generally thought to be closely as- sociated with the intense chemical and mechanical weathering of peridotite bedrock that is a principal source of nickel. Thus, the main ore genesis model for Ni ores in New Caledonia is based on a single per descensum model where most elements (Mg, Ni, and Si) are leached from the surface, particularly, during lateritic soil development. Nickel is then concentrated either in the fine-grained laterite where goethite is the main Ni bearer, the so-called ’lateritic ore’, or below the laterites, in the saprolite level, where nickel occurs as goethite and several types of Mg-Ni silicates, in particular kerolite. Recent mineralogical and structural observations together with mining data have revealed a lot of different types of heterogeneities associated with the distribution and mineralogy of Ni bearing minerals. Therefore, in depth investigations of Ni mobility, its retardation processes along with its governing chemical and hydrodynamic parameters are of big importance for understanding and subsequent prediction of Ni distribution in profiles of New Caledonia. Such an investigation is an objective of the present work. The concept is based on the development of i) a powerful 1D model with particular emphasis on Ni geochemical behavior during ophiolite weathering, its comparison with in situ observations, and detailed understanding of trace elements mobility, and ii) 2D hydro-geochemical model coupled with complex hydrodynamics, that would additionally provide new insight into the structural control on Ni redistribution and mineralization. While the 1D simulations provide a remarkable result for understanding the chemical features that drive Ni retention processes in a profile, 2D model appears to be a powerful tool for understanding how local Ni-enrichments may form. The results of this model show the reactivation of Ni from upper horizons and its concentration in neo-formed silicates in bottom of the saprolite. The reactivated Ni comes mostly from the saprolite horizon due to the redissolution of previously formed Ni-bearing silicates and still persisting in this olivine zone. Modeling has revealed minor contribution of the laterite horizon (Ni-oxi-hydroxides) into the Ni remobilization. The lateral infiltration of water with remobilized Ni from areas such as topographic highs to downstream slope areas leads to the formation of richest deposits in this lower part of profile. The manner of redistribution is fully governed by the topographic slopes, orientation and position of the fractures. Presented models appear to be of importance in attempt of explanation of Ni mineralization processes, revealing the main keys to understanding the control of trace elements mobility in ultramafic environment. The latter gives new insights into the Ni distribution in present day profiles and, therefore, may greatly help in mineral prospecting and forecasting the distribution of future resources
Malatkar, Pramod. "Nonlinear Vibrations of Cantilever Beams and Plates." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/28301.
Повний текст джерелаPh. D.