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Relevant bibliographies by topics / Solute dynamics / Dissertations / Theses

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Dissertations / Theses on the topic 'Solute dynamics'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Haider, Muhammad Rezaul. "Longitudinal Thermal and Solute Dynamics in Regulated Rivers." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6870.

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Dam releases increase river stage and can reverse groundwater movement into and out of the river. As the flood, thermal, and solute waves travel downstream in a regulated river, the size of the waves is anticipated to be affected both by river processes and exchanges with near river groundwater. This study established a modeling framework to quantify the influences of the groundwater exchanges on the temperatures and solute concentration dynamics along regulated rivers. The wave properties, volume of exchanges, conservative solute mass exchanges, and heat energy exchanges were calculated as a

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2

Kantola, A. M. (Anu M. ). "Liquid crystal NMR: director dynamics and small solute molecules." Doctoral thesis, University of Oulu, 2009. http://urn.fi/urn:isbn:9789514260704.

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Abstract The subjects of this thesis are the dynamics of liquid crystals in external electric and magnetic fields as well as the magnetic properties of small molecules, both studied by liquid crystal nuclear magnetic resonance (LC NMR) spectroscopy. Director dynamics of a liquid crystal 5CB in external magnetic and electric fields was studied by deuterium NMR and spectral simulations. A new theory was developed to explain the peculiar oscillations observed in the experimental spectra collected during fast director rotation. A spectral simulation program based on this new theory was developed a

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3

Brand, Andreas. "The influence of bottom boundary turbulence on sediment solute dynamics." kostenfrei, 2007. http://e-collection.ethbib.ethz.ch/view/eth:30414.

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4

Carr-White, Gerald Stopes. "Left ventricular regional wall dynamics, myocardial injury and solute exchange during coronary artery bypass surgery." Thesis, Imperial College London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.407516.

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5

Groh, Jannis Stephan [Verfasser]. "High precision lysimeters improve our understanding of water cycle and solute transport dynamics / Jannis Stephan Groh." Bonn : Universitäts- und Landesbibliothek Bonn, 2018. http://d-nb.info/1173898549/34.

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6

Alexandridis, Paschalis. "Thermodynamics and dynamics of micellization and micelle-solute interactions in block-copolymer and reverse micellar systems." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/37749.

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7

Groh, Jannis [Verfasser]. "High precision lysimeters improve our understanding of water cycle and solute transport dynamics / Jannis Stephan Groh." Bonn : Universitäts- und Landesbibliothek Bonn, 2018. http://d-nb.info/1173898549/34.

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8

Hamisi, Rajabu. "Modelling phosphorus dynamics in constructed wetlands upgraded with reactive filter media." Licentiate thesis, KTH, Hållbar utveckling, miljövetenskap och teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-207613.

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Developing low-cost and effective technologies to upgrade phosphorus (P) removal from the catchment runoffs and rural wastewater treatment facilities is one of the main research agendas to save the Baltic Sea from eutrophication. In Sweden, the construction of the constructed wetlands has been one of the environmental objectives for wastewater quality improvement in the small communities. However, the insufficiently understanding of the mechanisms underlying the process of phosphorus mobility and sorption in the constructed wetlands has limited design of the effective constructed wetlands. To

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9

Sun, Xingsheng. "A Computational Framework for Long-Term Atomistic Analysis of Solute Diffusion in Nanomaterials." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/85242.

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Diffusive Molecular Dynamics (DMD) is a class of recently developed computational methods for the simulation of long-term mass transport with a full atomic fidelity. Its basic idea is to couple a discrete kinetic model for the evolution of mass transport process with a non-equilibrium thermodynamics model that governs lattice deformation and supplies the requisite driving forces for kinetics. Compared to previous atomistic models, e.g., accelerated Molecular Dynamics and on-the-fly kinetic Monte Carlo, DMD allows the use of larger time-step sizes and hence has a larger simulation time window f

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10

Shokri-Kuehni, Salomé Michelle Sophie. "Dynamics of saline water evaporation from porous media." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/dynamics-of-saline-water-evaporation-from-porous-media(df48eec0-7bf4-46f5-96ef-d7f3f9419ec2).html.

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Saline water evaporation from porous media with the associated salt precipitation patterns is frequently observed in a number of industrial and environmental applications and it is important in a variety of topics including, but not limited to, water balance and land-atmosphere interaction, terrestrial ecosystem functioning, geological carbon storage, and preservation of historical monuments. The excess accumulation of salt in soil is a global problem and is one of the most widespread soil degradation processes. Thus, it is important to understand the dominant mechanisms controlling saline wat

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11

Shuster, William D. "Influences of Earthworm community dynamics on soil structure, carbon distribution, solute transport, and leachate production in Ohio Agroecosystems /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488194825667784.

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12

Frankfurt, Ricardo. "Simulação de transporte de massa de um soluto em meio poroso com auxílio do CFD (Computer Fluid Dynamics)." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-29012009-162554/.

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Com o avanço dos computadores pessoais, problemas técnicos complexos, antes restritos aos grandes centros de pesquisas internacionais, passam a ser acessíveis pelas mais diversas áreas do conhecimento, como as engenharias e em particular a Engenharia Química. Fenômenos físicos são representados matematicamente por equações diferenciais, que na maioria das vezes não possuem solução analítica possível. O CFD ( Computer Fluid Dynamics) é uma técnica numérica iterativa, que busca a solução destas equações diferenciais através da discretização do domínio estudado e das equações que governam o fenôm

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13

Pedretti, Daniele. "Tools and analysis of spatio-temporal dynamics in heterogeneous aquifers: applications to artificial recharge and forced-gradient solute transport." Doctoral thesis, Universitat Politècnica de Catalunya, 2012. http://hdl.handle.net/10803/123716.

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This thesis deals with the development of tools and analysis to characterize and predict artificial recharge and radial convergent solute transport processes in heterogeneous media. The goal is to provide new insights to understand how heterogeneity, which is the main natural source of uncertainty in decision-making processes related with groundwater applications, can be controlled and its effects predicted for practical purposes in these topics. For hydrogeological applications, accurate modeling of phenomena is needed, but it is uncertain. Uncertainty is derived from the spatio-temporal rand

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14

Seagren, A. G. "The nature of solute acquisition and suspended sediment dynamics in channelised subglacial weathering environments, Haut Glacier D'Arolla, Valais, Switzerland." Thesis, Aberystwyth University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.391247.

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15

Hoskins, Tyler Courtney. "Water and nutrient transport dynamics during the irrigation of containerized nursery crops." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/48165.

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Increased water- and fertilizer-use-efficiency in containerized crop production, via reduced water loss, enhances crop-available nutrients while reducing non-point source agrichemical contributions in accordance with regulatory standards. Previous studies detailed nutrient leaching patterns throughout crop production seasons, leaving little known about water and dissolved nutrient (solute) movement through soilless substrates during irrigation. The following experiments evaluated fundamental water and solute transport principles through pine-bark based substrates. 1) Ilex crenata Thunb. 'Benne

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16

Hooshmand, Mohammad Shahriar. "Atomic-scale modeling of twinning in titanium and other HCP alloys." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1566143337320934.

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17

Karlsson, Gunnar. "Diffusion in Poly(vinyl alcohol) and Polyethylene as Determined by Computational Simulations and Modeling." Doctoral thesis, KTH, Polymer Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3370.

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<p>Poly(vinyl alcohol) and polyethylene polymer systems werebuilt in order to study their transport properties (diffusion).First a verification of the AMBER force field was conducted fora poly(vinyl alcohol) system built from a chain with 145repeating units. NPT-molecular dynamics simulations attemperatures between 400 and 527 K were performed. The resultsof the simulations were compared withpressure-volume-temperature data, solubility parameter, X-rayscattering pattern and data for the characteristic ratio. Thefractional free volume distribution was computed and thediffusion characteristics o

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18

Mahmood, Muhammad Nasir [Verfasser], Rudolf [Gutachter] Liedl, Jan H. [Gutachter] Fleckenstein та Marc [Gutachter] Walther. "Modeling the eﬀects of Transient Stream Flow on Solute Dynamics in Stream Banks and Intra-meander Zones / Muhammad Nasir Mahmood ; Gutachter: Rudolf Liedl, Jan H. Fleckenstein, Marc Walther". Dresden : Technische Universität Dresden, 2021. http://d-nb.info/1235344363/34.

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19

Bowser, Michael T. "Dynamic complexation of solutes in capillary electrophoresis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp02/NQ34516.pdf.

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20

Wicaksono, Aulia Tegar. "Atomistic simulations of dynamic interaction between grain boundaries and solute clusters." Thesis, University of British Columbia, 2015. http://hdl.handle.net/2429/55662.

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Microstructure evolution during material processing is determined by a number of factors, such as the kinetics of grain boundary migration in the presence of impurities, which can take form of solid solution, second-phase precipitates or clusters. The dynamic interaction between grain boundaries and clusters has not been explored. In this work, a variety of simulation tools are utilized to approach this problem from an atomistic perspective. Atomistic simulations are first implemented to explore the parameter space of the solute drag problem, i.e. grain boundary migration in a binary ideal sol

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21

Soltanian, Mohamad Reza. "RELATING REACTIVE TRANSPORT TO HIERARCHICAL AND MULTISCALE SEDIMENTARY ARCHITECTURE." Wright State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=wright1428521270.

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22

Toosi, Ehsan Razavy. "Soluble Organic Matter, its Biodegradation, Dynamics and Abiotic Production." Thesis, University of Canterbury. School of Forestry, 2010. http://hdl.handle.net/10092/5302.

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Soluble organic matter represent less than 1% of total soil organic matter (SOM) - but it contributes to many terrestrial ecosystem processes, due to its high mobility and reactivity in soil. Although it has been suggested that soluble organic matter (OM) may serve as an early indicator of soil quality changes as a result of shifts in land-use and management practices, only a few studies have addressed the dynamics of soluble OM in relation to land-use and specifically soil depth. This study focuses on two aspects of soluble OM. In the first part, I hypothesized that extractable OM obtained b

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23

Padilla, Ingrid Yamill 1964. "Transport of nonreactive and volatile Solutes in unsaturated porous media under wetting and draining conditions." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/191230.

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The effect of water content and soil-water hysteresis on transport of unreactive water-tracers and volatile organic compounds (VOCs) in porous media is investigated under steady-state water-flow conditions. Specifically, this research addresses the effect on dispersive and mass transfer processes affecting the movement of NaC1 and trichloroethene (ICE) and how these processes influence the approach to Fickian flux conditions. Transport experiments were conducted in a 25-cm column packed with silica sand. Based on the results, it is concluded that water content (0), pore-water velocity, and flo

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24

Van, der Est Arthur James. "NMR of solutes in nematic liquid crystals : an investigation of the mechanisms of orientational ordering." Thesis, University of British Columbia, 1987. http://hdl.handle.net/2429/27557.

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Dipolar and quadrupolar couplings measured from NMR experiments, and order parameters obtained from these couplings, are reported for a number of small solutes dissolved in several nematic liquid crystals. These results are discussed in terms of the solute-solvent interactions. It has been shown that the interaction between the solute molecular quadrupole moment and a mean external electric field gradient due to the liquid crystal accounts for most but not all of the ordering of molecular hydrogen. The remaining contribution to ordering is discussed in terms of possible mechanisms. The anisotr

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25

Duston, Stephanie Ann. "Capturing and Characterizing Soluble Organic Matter Dynamics in Soil Formation Processes." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/99850.

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Dissolved organic matter (DOM) is a highly complex, heterogeneous mix of compounds with diverse functional groups that contribute to several environmental processes such as organo-mineral complexation, nutrient bioavailability, and mineral dissolution. Because of these contributions of DOM to important ecosystem processes, it is often of interest to quantify the flux of DOM moving through different parts of ecosystems. Unfortunately, the complexity and variability of DOM makes quantification and chemical analysis of fluxes challenging. This thesis has two components, the first examines the pot

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26

Cosler, Douglas Jay. "Numerical investigation of field-scale convective mixing processes in heterogeneous, variable-density flow systems using high-resolution adaptive mesh refinement methods." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1148412827.

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27

Westhead, David Robert. "Dynamic properties of an exactly soluble model of a modulated crystal." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.291601.

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28

Martin, Sylvain. "Contribution à la modélisation du frittage en phase solide." Thesis, Compiègne, 2014. http://www.theses.fr/2014COMP2144/document.

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Cette thèse traite de la modélisation du frittage à l’échelle du Volume Élémentaire Représentatif de la pastille de matériau. L’objectif est de développer des outils numériquesde compréhension des phénomènes physiques mis en jeu lors du frittage. Le domaine d’application ciblé est la fabrication du combustible nucléaire. Une approche multi-Échelle a été mise en oeuvre. Dans un premier temps une modélisation à l’échelle d’un empilement, basée sur la méthode des Éléments Discrets, a été adoptée. Différentes études utilisant cette approche ont été proposées dans la littérature ces dernières année

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29

Lumber, Darren. "Fluorescence studies of the dynamics of water soluble polymers in aqueous solutions and dispersions." Thesis, Lancaster University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340644.

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30

Hubbard, S. D. "The influence of dye solutes on the static and dynamic electro-optic properties of nematic mesophases." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.377752.

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31

Kölsch, Peter. "Static and dynamic properties of soluble surfactants at the air, water interface." [S.l.] : [s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976726548.

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32

Kölsch, Patrick. "Static and dynamic properties of soluble surfactants at the air/water interface." Phd thesis, Universität Potsdam, 2005. http://opus.kobv.de/ubp/volltexte/2005/571/.

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<P> Amphiphilic molecules contain a hydrophilic headgroup and a hydrophobic tail. The headgroup is polar or ionic and likes water, the tail is typically an aliphatic chain that cannot be accommodated in a polar environment. The prevailing molecular asymmetry leads to a spontaneous adsorption of amphiphiles at the air/water or oil/water interfaces. As a result, the surface tension and the surface rheology is changed. Amphiphiles are important tools to deliberately modify the interfacial properties of liquid interfaces and enable new phenomena such as foams which cannot be formed in a pure liqui

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33

Abdedou, Nazim. "Non-equilibrium conditions at solid/liquid interfaces." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0346.

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Notre travail porte sur la fusion dite solutale survenant lorsque l'on met deux métaux en contact à une température comprise entre leurs températures de fusion respectives. L'interface solide/liquide se retrouve initialement fortement hors-équilibre et la cinétique propre à son retour à l'équilibre semble mettre en défaut les modèles généralement employés pour décrire la solidification et la fusion. Pour progresser dans la compréhension du processus, nous avons abordé le problème sous trois angles complémentaires. Dans un premier temps, nous avons réalisé des expériences in-situ de fusion solu

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34

Nilsen, Matthew David. "Soluble Surfactant and Nanoparticle Effects on Lipid Monolayer Assembly and Stability." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1284743445.

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35

Lapillonne, Suzanne. "Modélisation multi-échelles des laves torrentielles avec un modèle numérique couplé solide-fluide." Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALI034.

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Les laves torrentielles sont des phénomènes géologiques d'écoulement rapides d'un mélange fluide solide dans le lit d'un torrent. Le risque associé à ces écoulements est important pour les communautés vivant dans les régions montagneuses. Pour améliorer la précision de la gestion du risque, il est important de pouvoir modéliser ces phénomènes de façon précise. Bien que la communauté de recherche autour des laves torrentielles soit enthousiaste aux approches numériques, seulement quelques modèles ont calibré et validé leurs modèles à plusieurs échelles en utilisant des données de terrains et de

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36

Garcia, Julio Enrique. "Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers." Berkeley, Calif. : Oak Ridge, Tenn. : Lawrence Berkeley National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2003. http://www.osti.gov/servlets/purl/821335-QqO4VQ/native/.

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Thesis (Ph.D.); Submitted to the University of California, Berkeley, CA (US); 18 Dec 2003.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "LBNL--54280" Garcia, Julio Enrique. USDOE Director. Office of Science. Basic Energy Sciences (US) 12/18/2003. Report is also available in paper and microfiche from NTIS.

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37

Netzloff, Heather Marie. "Drama in Dynamics Boom, Splash, and Speed." Washington, D.C. : Oak Ridge, Tenn. : United States. Dept. of Energy. Office of Science ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2004. http://www.osti.gov/servlets/purl/835377-gqvCD8/webviewable/.

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19 Dec 2004.<br>Published through the Information Bridge: DOE Scientific and Technical Information. "IS-T 1930" Heather Marie Netzloff. 12/19/2004. Report is also available in paper and microfiche from NTIS.

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38

Zhou, Jiayun. "The physical and biological controls on the distribution of gases and solutes in sea ice from ice growth to ice decay." Doctoral thesis, Universite Libre de Bruxelles, 2014. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209219.

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The ongoing changes in the extent and the properties of sea ice, associated with the warming climate, are affecting the polar ecosystem and the interactions between the atmosphere, sea ice and the underlying waters. How sea ice biogeochemistry will change in the foreseeable future is currently uncertain, but is a crucial problem to tackle.<p>To better understand how sea ice biogeochemistry could change, we investigated the factors regulating the distribution of some dissolved compounds (e.g. nutrients, dissolved organic matter (DOM)) and gaseous compounds (e.g. Ar, O2, N2, CH4) in sea ice, fro

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39

Okazaki, S., N. Yoshii, and K. Fujimoto. "Molecular dynamics study of solubilization of immiscible solutes by a micelle: Free energy of transfer of alkanes from water to the micelle core by thermodynamic integration method." AIP Publishing, 2010. http://hdl.handle.net/2237/20837.

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40

Berjamin, Harold. "Modeling wave propagation in nonlinear solids with slow dynamics." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0680/document.

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Les géomatériaux tels les roches et le béton ont la particularité de s’amollir sous chargement dynamique, c.-à-d. que la vitesse du son diminue avec l’amplitude de forçage. Afin de reproduire ce comportement, un modèle de milieu continu à variables internes est proposé. Il est composé d’une loi de comportement donnant l’expression de la contrainte, et d’une équation d’évolution pour la variable interne. La viscoélasticité non linéaire de type Zener est prise en compte par l’ajout de variables internes supplémentaires. Les équations du mouvement forment un système de lois de conservation non li

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41

Perrin, Kévin. "Etude des phénomènes de diffusion à l'état solide impliqués dans les réactions hétérogènes gaz-solide : application à la sulfuration de l'oxyde de zinc." Thesis, Bourgogne Franche-Comté, 2018. http://www.theses.fr/2018UBFCK064/document.

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Les phénomènes de transformation de phases avec interface réactionnelle mobile interviennent dans une grande variété de réactions chimiques et d’applications. Les réactions de sulfuration d'oxydes métalliques mènent par exemple à la formation de phases sulfures dans des applications concernant la purification de gaz ou la préparation de catalyseurs. Ces réactions impliquent entre autres des phénomènes de diffusion des espèces réactives à l’état solide (sous forme atomique ou ionique) à travers la couche de produit formée lors de la réaction (phase oxyde, sulfure ou métal). Dans de nombreux cas

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Ganesan, Hariprasath [Verfasser], Alexander [Gutachter] Hartmaier, and Godehard [Gutachter] Sutmann. "Highly parallel molecular dynamics / Monte Carlo coupling towards solutes segregation modelling / Hariprasath Ganesan ; Gutachter: Alexander Hartmaier, Godehard Sutmann ; Fakultät für Maschinenbau." Bochum : Ruhr-Universität Bochum, 2019. http://nbn-resolving.de/urn:nbn:de:hbz:294-64706.

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43

Vogel, Troy J. "Dynamic Behavior of Self-Assembled Langmuir Films Composed of Soluble Surfactants and Insoluble Amphiphiles." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1312333896.

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44

Dumez, Jean-Nicolas. "Many body dynamics in nuclear spin diffusion." Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2011. http://tel.archives-ouvertes.fr/tel-00657067.

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Since its introduction by Bloembergen in 1949, nuclear spin diffusion has been a topic of significant interest in magnetic resonance. Spin diffusion, which can be defined as the transfer of spin polarisation induced by the dipolar interaction, is a ubiquitous transport mechanism in solids. Experimental observations of spin diffusion contain structural information. However, the many-body nature of the problem makes it difficult to describe from first principles. The central goal of this thesis is to obtain a quantitative description of the spin diffusion phenomenon from first-principles, throug

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Benton, Joshua Robert. "Temporal Dynamics of Groundwater Flow Direction in a Glaciated, Headwater Catchment." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/104222.

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Shallow groundwater flow in the critical zone of steep headwater mountain catchments is often assumed to mimic surface topography. However, groundwater flow is influenced by other variables, such as the elevation of the water table and subsurface hydraulic conductivity, which can result in temporal variations in both magnitude and direction of flow. In this study, I investigated the temporal variability of groundwater flow in the soil zone (solum) within the critical zone of a headwater catchment at the Hubbard Brook Experimental Forest in North Woodstock, NH. Groundwater levels were continu

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46

Abdallah, Iman. "Spin dynamics and structural modifications of Co2MnSi Heusler alloys by helium ions irradiation." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30079/document.

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L'électronique de spins est basée sur le principe que l'électron possède une charge mais aussi un spin. Cette nouvelle électronique est née de de la découverte de la magnétorésistance géante (GMR) par A. Fert et P. Grunberg en 1988 qui furent récompensés par le prix Nobel de physique en 2007. Ceci a révolutionné le domaine des capteurs de champ magnétiques ainsi que le stockage at le traitement de données. Les mécanismes de base de la GMR et la Magnéto Résistance Tunnel (TMR) repose sur la polarisation de spin, qui correspond à l'orientation préférentielle dans une direction du spin des électr

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Bureau, Lionel. "Elasticité et rhéologie d'une interface macroscopique : du piégeage au frottement solide." Phd thesis, Université Paris-Diderot - Paris VII, 2002. http://tel.archives-ouvertes.fr/tel-00001413.

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Nous présentons une étude des propriétés de frottement d'une interface multicontacts (IMC), formée de multiples microcontacts entre les aspérités de surface de deux solides macroscopiques. Nous nous intéressons tout d'abord à la dynamique de glissement d'une IMC soumise à une charge normale modulée. Nous montrons que l'effet de la modulation est de diminuer la force de frottement moyenne, et de stabiliser le glissement vis-à-vis du stick-slip. Le modèle de frottement ``state and rate-dependent'' (SRF), qui décrit la dynamique de glissement en termes de la compétition entre vieillissement géomé

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48

Deboeuf, Stéphanie. "TRANSITIONS ET COEXISTENCE SOLIDE-LIQUIDE DANS LES MATERIAUX GRANULAIRES." Phd thesis, Institut de physique du globe de paris - IPGP, 2005. http://tel.archives-ouvertes.fr/tel-00202523.

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Pour comprendre les mécanismes de déstabilisation, d'arrêt et de coexistence des phases statiques (solide) et coulantes (liquide), nous réalisons expériences et simulations numériques d'empilements granulaires modèles. Trois sujets ont été abordés au cours de cette thèse.<br />L'étude expérimentale de la transition d arrêt d'un empilement après un écoulement de surface met en évidence l'existence de relaxations de durée bien supérieure au temps de relaxation d'un grain sous l'action de son poids. Celle-ci est constituée de phases de relaxation et de réactivations liées à des déplacements corré

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Saliou, Anthony. "Modélisation multi-échelle des géopolymères : du liquide au solide." Electronic Thesis or Diss., Université de Montpellier (2022-....), 2024. http://www.theses.fr/2024UMONS019.

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Alternative aux ciments, les matériaux géopolymères sont prometteurs dans le domaine du génie civil et de l’ingénierie nucléaire. Formés à partir d’aluminosilicates, ils présentent des propriétés mécaniques intéressantes pour le stockage de déchets radioactifs ou encore le développement de mousses isolantes. Le processus de géopolymérisation commence avec la dissolution d’un solide d’aluminosilicates par une solution alcaline à haut pH. Des oligomères de quelques nanomètres se forment alors et s’agrègent en un réseau poreux 3D à méso-échelle (plusieurs centaines de nm). Après 5h, les propriété

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Yazdi, Samira [Verfasser], Michael [Akademischer Betreuer] Naumann, and Helmut [Akademischer Betreuer] Weiß. "The structural dynamics of soluble and membrane proteins explored through molecular simulations / Samira Yazdi ; Michael Naumann, Helmut Weiß." Magdeburg : Universitätsbibliothek, 2016. http://d-nb.info/111708597X/34.

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