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Dissertations / Theses on the topic 'Universal properties'

Author: Grafiati

Published: 7 June 2025

Last updated: 16 July 2025

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1

Fairey, Gareth A. "Universal properties in topology." Thesis, University of Oxford, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.365709.

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2

Wiggins, Harry. "Factorization properties of universal algebras." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/11343.

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Includes abstract.<br>Includes bibliographical references (leaves 92-95).<br>This dissertation deals with algebraic structures that can be written as the product of directly indecomposable algebras in a unique way up to isomorphism, known as the Unique Factorization Property. Here we undertake the task of collecting all the major results discovered by a few mathematicians (A. Tarski, B. J´onsson, R. Mckenzie, C. Chang, G. Birkhoff, L. Lovasz, etc.) over the past century. Another goal of this thesis was to highlight important and to introduce fresh techniques. The scope of most of them is still

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3

Viti, Jacopo. "Universal properties of two dimensional percolation." Doctoral thesis, SISSA, 2012. http://hdl.handle.net/20.500.11767/4717.

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4

Bödeker, Hendrik Ulrich. "Universal properties of self-organized localized structures." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=984610413.

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5

Redpath, Stuart Frederick. "Universal approximation properties of feedforward artificial neural networks." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1015869.

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In this thesis we summarise several results in the literature which show the approximation capabilities of multilayer feedforward artificial neural networks. We show that multilayer feedforward artificial neural networks are capable of approximating continuous and measurable functions from Rn to R to any degree of accuracy under certain conditions. In particular making use of the Stone-Weierstrass and Hahn-Banach theorems, we show that a multilayer feedforward artificial neural network can approximate any continuous function to any degree of accuracy, by using either an arbitrary squashing fun

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6

Brunnbauer, Michael. "Topological properties of asymptotic invariants and universal volume bounds." Diss., lmu, 2008. http://nbn-resolving.de/urn:nbn:de:bvb:19-87504.

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7

Levi, Emanuele. "Universal properties of the entanglement entropy in quantum integrable models." Thesis, City University London, 2013. http://openaccess.city.ac.uk/3041/.

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This thesis is a review of the works and ideas I have been developing in my doctoral studies, and it is mainly based on Castro-Alvaredo & Levi [2011]; Castro-Alvaredo et al. [2011]; Levi [2012]; Levi et al. [2013]. The specific aims of these works were to explore the methods developed in Calabrese & Cardy [2004]; Cardy et al. [2008] with the purpose of quantifying entanglement in a quantum field theory, and have a deeper understanding of their predicting power on lattice systems. The first chapter is meant to be a review of quantum entanglement in many-body physics, and the methods we use to e

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8

Okubo, Ken-ichi. "Exact Analysis of Universal Critical Behavior and Ergodic Properties of Chaos." Kyoto University, 2020. http://hdl.handle.net/2433/253420.

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9

Krohn, Ulrich [Verfasser]. "Universal scaling and coherence properties of an ultracold Rydberg gas / Ulrich Krohn." München : Verlag Dr. Hut, 2011. http://d-nb.info/1014848539/34.

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10

Naoum, Steven James. "SIGNIFICANT PROPERTIES OF UNIVERSAL RESTORATIVE MATERIALS CONTAINING PRE-REACTED GLASS IONOMER PARTICLES." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/9019.

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ABSTRACT Carious lesions located at the margins of resin composite restorations and on unrestored proximal tooth surfaces in contact with resin composite restorations is an undesirable occurrence that can necessitate restorative intervention. Significantly however, several in vivo and in vitro studies have shown that should a composite restoration have fluoride releasing capability, the incidence of caries associated with resin composite restorations at these locations has the potential to be reduced. Further, it has been speculated that the inclusion of Pre-reacted glass ionomer (PRG) partic

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11

Shamasundar, K. R. "Studies of molecular properties using state-universal multi-reference coupled-cluster approach." Thesis(Ph.D.), CSIR-National Chemical Laboratory, Pune, 2004. http://dspace.ncl.res.in:8080/xmlui/handle/20.500.12252/2900.

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12

Yeung, Ka-Wai, and 楊{213a79}慧. "Universal vs. language-specific properties of grammaticalized complementizers: two case studies in multi-functionality." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B29149769.

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13

Juschka, Ann-Kristin [Verfasser], and Gebhard [Akademischer Betreuer] Böckle. "Geometric Properties of Versal Deformation Rings and Universal Pseudodeformation Rings / Ann-Kristin Juschka ; Betreuer: Gebhard Böckle." Heidelberg : Universitätsbibliothek Heidelberg, 2018. http://d-nb.info/1177251612/34.

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14

Xuan, Mingzhi. "On Steinhaus Sets, Orbit Trees and Universal Properties of Various Subgroups in the Permutation Group of Natural Numbers." Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc149691/.

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In the first chapter, we define Steinhaus set as a set that meets every isometric copy of another set at exactly one point. We show that there is no Steinhaus set for any four-point subset in a plane.In the second chapter, we define the orbit tree of a permutation group of natural numbers, and further introduce compressed orbit trees. We show that any rooted finite tree can be realized as a compressed orbit tree of some permutation group. In the third chapter, we investigate certain classes of closed permutation groups of natural numbers with respect to their universal and surjectively univers

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15

Son, Vo Thanh, and n/a. "Evaluation of the USLE (Universal Soil Loss Equation) to estimate soil loss from hobby farms and commercial pastoral properties around Murrumbateman, NSW, Australia." University of Canberra. Applied Science, 1993. http://erl.canberra.edu.au./public/adt-AUC20061108.171337.

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This thesis is an evaluation of the use the USLE to estimate soil loss from two pastoral land uses - commercial properties and "hobby farms" in Murrumbateman. Sensitivity analysis was used to evaluate the USLE components. Sediment measurement in farm dams was taken to estimate sediment yield from several sites, as an alternative approach to study soil loss. The annual soil loss from entire study area was 0.25 t/ha/year whilst these figures from commercial properties and hobby farms were 0.29 t/ha/year and 0.21 t/ha/year, respectively. The annual average sediment yield from three catchments in

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16

Riad, Stella. "Phenomenology of neutrino properties, unification, and Higgs couplings beyond the Standard Model." Doctoral thesis, KTH, Teoretisk partikelfysik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202311.

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The vast majority of experiments in particle physics can be described by the Standard Model of particle physics (SM). However, there are indications for physics beyond it. The only experimentally demonstrated problem of the model is the difficulty to describe neutrino masses and leptonic mixing. There is a plethora of models that try to describe these phenomena and this thesis investigates several possibilities for new models, both full theories and effective frameworks. The values of the parameters in a model are dependent on the energy scale and we say that the parameters run. The exact be

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17

Nakazato, Anderson Zenken. "Desenvolvimento de máquina universal de ensaios mecânicos portátil de baixo custo para fins didáticos utilizando o conceito open-source. /." Guaratinguetá, 2019. http://hdl.handle.net/11449/181723.

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Orientador: Luis Rogerio de Oliveira Hein<br>Resumo: Neste trabalho é apresentado o projeto e construção de uma Máquina Universal de Ensaios Mecânicos portátil, didática, de baixo custo, fácil construção seguindo a filosofia open-source com o intuito de dar suporte ao ensino de Mecânica e Resistência do Materiais. O equipamento foi projetado para ser construído com perfis modulares de alumínio e executado em uma oficina de ensino técnico em mecânica. A máquina é capaz aplicar de forma segura um carregamento máximo de 10 kN tanto em tração quanto em compressão, se mover em velocidades que varia

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18

Moulton, Sara E. "An Examination of the Psychometric Properties of the Student Risk Screening Scale for Internalizing and Externalizing Behaviors: An Item Response Theory Approach." BYU ScholarsArchive, 2016. https://scholarsarchive.byu.edu/etd/6604.

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This research study examined the psychometric properties of the Student Risk Screening Scale for Internalizing and Externalizing Behaviors (SRSS-IE) using Item Response Theory (IRT) methods among a sample of 2,122 middle school students. The SRSS-IE is a recently revised screening instrument aimed at identifying students who are potentially at risk for emotional and behavioral disorders (EBD). There are two studies included in this research. Study 1 utilized the Nominal Response and Generalized Partial Credit models of IRT to evaluate items from the SRSS-IE in terms of the degree to which t

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19

Kub, Christopher. "Hyperbranched conjugated polymers: an investigation into the synthesis, properties and postfunctionalization of hyperbranched poly(phenylene vinylene-phenylene ethynylene)s." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/34838.

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There are two general ways to introduce functionalities into a polymeric structure: functionalization of the monomeric units before polymerization and postfunctionalization of the preformed polymer. Building libraries of polymers with different functionalities can be completed with significantly less effort by the second method, as each postfunctionalization of a single batch of polymeric backbone can involve as little as one synthetic step. One method of building a polymeric backbone for postfunctionalization involves the synthesis of hyperbranched conjugated polymers (HCPs) from AB2 monome

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20

Takahashi, Keitaro, Kiyotomo Ichiki, and Naoshi Sugiyama. "Electromagnetic properties of the early universe." American Physical Society, 2008. http://hdl.handle.net/2237/11311.

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21

Singleton, Colin Paul. "Optical properties of galaxies in the local universe." Thesis, University of Cambridge, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621136.

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22

Khochfar, Sadegh. "Origin and properties of elliptical galaxies in a hierarchical universe." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968331971.

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23

Smer, Barreto Vanessa Stephanie Emilia. "Probing of dark energy properties in the Universe using astrophysical observations." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28956.

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The astrophysical data of the last two decades have allowed cosmologists to conclude that the present Universe is accelerating. The research carried out to find the origin of this phenomenon has led to the creation of a vast number of dark energy and modified gravity theories, of which the simplest is the ˄CDM model. The latter is, however, plagued with very difficult problems awaiting a solution. The work here presented seeks to contribute to the discussion of the possible explanation for the Cosmos' acceleration and other important questions in modern cosmology using the newest astrophysical

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24

Shaeri, Maryam. "Super-inflation and perturbations in LQC, and scaling solutions in curved FRW universes." Thesis, University of Nottingham, 2009. http://eprints.nottingham.ac.uk/10959/.

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We investigate phenomenologies arising from two distinct sets of modifications introduced in Loop Quantum Cosmology (LQC), namely, the inverse volume and the holonomy corrections. We find scaling solutions in each setting and show they give rise to a period of super-inflation soon after the universe starts expanding. This type of inflation is explicitly shown to resolve the horizon problem with far fewer number of e-foldings compared to the standard inflationary model. Scalar field perturbations are obtained and we demonstrate their near scale invariance in agreement with the latest observatio

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25

Hunter, D. J. "The mysterious universe : core-collapse supernovae and the properties of their host galaxies." Thesis, Queen's University Belfast, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.546360.

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26

Rotaru, Andrei. "Novel polar dielectrics with the tetragonal tungsten bronze structure." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/4184.

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There is great interest in the development of new polar dielectric ceramics and multiferroic materials with new and improved properties. A family of tetragonal tungsten bronze (TTB) relaxors of composition Ba₆M³⁺Nb₉O₃₀ (M³⁺ = Ga³⁺, Sc³⁺ and In³⁺, and also their solid solutions) were studied in an attempt to understand their dielectric properties to enable design of novel polar TTB materials. A combination of electrical measurements (dielectric and impedance spectroscopy) and powder diffraction (X-ray and neutron) studies as a function of temperature was employed for characterising the dynamic

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27

Lim, Henry C. A. "The influence of reactive modification on the compatibility of polyolefins with non-olefinic thermoplastics." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/8372.

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Polyethylene (PE) resins being non-polar in nature and having a high degree of crystallinity have limited miscibility and compatibility when blended with polar polymers. The miscibility and compatibility of these blends are generally worsened when they are prepared by direct injection moulding without a precompounding process. Such situations are commonly encountered in particular by polymer converters when blending colour and/or additive concentrates, commonly known as masterbatches. Typically, masterbatches are mixtures containing high loading of pigments and/or additives predispersed in a s

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28

Porciani, Cristiano. "Clustering Properties of Dark Matter Haloes in Hierarchical Models for Structure Formation in the Universe." Doctoral thesis, SISSA, 1999. http://hdl.handle.net/20.500.11767/4369.

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In chapter 1 we introduce some basic elements of modern cosmology, describing the main features of the standard hot big-bang model and the concept of inflation. Special attention is devoted to show that recent observational data are consistent with the theoretical framework. In chapter 2 we review the theory of gravitational instability in an expanding universe. Both the Eulerian and the Lagrangian perturbative approaches to the evolution of density perturbations are discussed in detail. The spherical top-hat model and a series of dynamical approximations are also presented. Chapter 3 de

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29

Minehan, M. J. "Properties and morality : an examination of the role of universals in moral ontology, and the development of a trope ethic." Phd thesis, Department of Philosophy, 2007. http://hdl.handle.net/2123/6002.

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30

Fu, Nicole Christina. "Physical Properties of Massive, Star-Forming Galaxies When the Universe Was Only Two Billion Years Old." Thèse, Université d'Ottawa / University of Ottawa, 2011. http://hdl.handle.net/10393/19956.

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Due to the finite speed of light and a vast, expanding universe, telescopes are just now receiving the light emitted by galaxies as they were forming in the very early universe. The light from these galaxies has been redshifted (stretched to longer, redder wavelengths) as a result of its journey through expanding space. Using sophisticated techniques and exceptional multi-wavelength optical and infrared data, we isolate a population of 378 galaxies in the process of formation when the Universe was only two billion years old. By matching the distinctive properties of the light spectra of the

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31

Miguel-Arricau, Sophie. "Corrélation structure/propriété de polymères à base d'acrylamide pour des applications en récupération assistée des hydrocarbures (RAH)." Electronic Thesis or Diss., Pau, 2022. https://theses.hal.science/tel-04010751.

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La connaissance des propriétés physico-chimiques des solutions de polymères utilisées en récupération assistée des hydrocarbures (RAH) est essentielle pour une bonne efficience du procédé. Ces travaux avaient pour but de conforter et enrichir un modèle de viscosité universelle dépendant du paramètre de recouvrement C[η] qui permet de prendre en compte l'occupation du milieu par les chaînes macromoléculaires (concentration d'enchevêtrement critique, C*, régimes dilué et semi-dilué). Les effets des microstructures, de la taille et de la composition des polymères ont été étudiés via la synthèse d

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32

Gnedin, Nickolay Y., George D. Becker, and Xiaohui Fan. "Cosmic Reionization on Computers: Properties of the Post-reionization IGM." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/624497.

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We present a comparison between several observational tests of the post-reionization intergalactic medium and the numerical simulations of reionization completed under the Cosmic Reionization On Computers (CROC) project. The CROC simulations match the gap distribution reasonably well, and also provide a good match for the distribution of peak heights, but there is a notable lack of wide peaks in the simulated spectra and the flux-probability distribution functions are poorly matched in the narrow redshift interval 5.5 < z < 5.7, with the match at other redshifts being significantly better, alb

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33

Strandet, M. L., A. Weiss, C. De Breuck, et al. "ISM Properties of a Massive Dusty Star-forming Galaxy Discovered at z ∼ 7." IOP PUBLISHING LTD, 2017. http://hdl.handle.net/10150/627112.

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We report the discovery and constrain the physical conditions of the interstellar medium of the highest-redshift millimeter-selected dusty star-forming galaxy to date, SPT-S J031132-5823.4 (hereafter SPT0311-58), at z = 6.900 +/- 0.002. SPT0311-58 was discovered via its 1.4 mm thermal dust continuum emission in the South Pole Telescope (SPT)-SZ survey. The spectroscopic redshift was determined through an Atacama Large Millimeter/submillimeter Array 3 mm frequency scan that detected CO(6-5), CO(7-6), and [C I](2-1), and subsequently was confirmed by detections of CO(3-2) with the Australia Tele

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34

Brainerd, Tereasa G. "A study of properties of dark galaxy halos in a CDM universe using N-body computer simulations /." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487777901658753.

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35

Lefebvre, Marie-Pierre. "Spatialisation de modèles de fonctionnement hydromécanique des sols appliquée à la prévision des risques de tassement à l'échelle de la France." Phd thesis, Université d'Orléans, 2010. http://tel.archives-ouvertes.fr/tel-00553390.

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Le tassement des sols est l'un des principaux processus de dégradation des sols en Europe. Il est principalement dû à la mécanisation des activités agricoles et forestières qui se traduit par des passages d'engins de plus en plus lourds, très souvent en conditions climatiques défavorables. La directive cadre pour la protection des sols en préparation envisage de demander aux Etats membres de l'Union Européenne de recenser les zones les plus sensibles au tassement en vue d'appliquer des mesures de prévention ou de réhabilitation. Le but de notre étude est de développer une méthode d'estimation

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36

Brown, Scott Andrew. "Essays on Modality and Instantiation." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1483479401220297.

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37

Healy, Julia L. "Using HI stacking to study galaxy properties in the nearby universe (Looking for needles in the HI-stack)." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/24463.

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Neutral atomic hydrogen (Hi) is the raw fuel from which the star-forming molecular gas forms and is therefore an important tracer of galaxy evolution. Due to the intrinsic faintness of the Hi emission line (observed at rest at 21 cm), galaxies beyond a few hundred megaparsecs are difficult to observe directly with current radio telescopes. However, in the next year, MeerKAT and other SKA pathfinder telescopes will begin operating and enable deeper, large surveys (e.g. LADUMA) of neutral gas in galaxies. Hi Stacking is an observational technique that will be highly exploited to learn about the

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38

Tricard, Julien. "Les quantités dans la nature : les conditions ontologiques de l’applicabilité des mathématiques." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUL132.

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Si nos théories physiques peuvent décrire les traits les plus généraux de la réalité, on sait aussi que pour le faire, elles utilisent le langage des mathématiques. On peut alors légitimement se demander si notre capacité à décrire, sinon la nature intime des objets et phénomènes physiques, du moins les relations et structures qu’ils instancient, ne vient pas de cette application des mathématiques. Dans cette thèse, nous soutenons que les mathématiques sont si efficacement applicables en physique tout simplement parce que la réalité décrite par les physiciens est de nature quantitative. Pour c

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Mazzucchelli, Chiara [Verfasser], and Hans-Walter [Akademischer Betreuer] Rix. "The Physical Properties and Cosmic Environments of Quasars in the First Gyr of the Universe / Chiara Mazzucchelli ; Betreuer: Hans-Walter Rix." Heidelberg : Universitätsbibliothek Heidelberg, 2018. http://d-nb.info/1177252988/34.

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Volino, Filomena [Verfasser]. "Study of two radio gravitational lenses: insight into the high-redshift Universe and properties of mass distribution / Filomena Volino. Mathematisch-Naturwissenschaftliche Fakultät." Bonn : Universitäts- und Landesbibliothek Bonn, 2011. http://d-nb.info/1016184379/34.

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41

Costantin, L. "On the formation of bulges from their observed properties in nearby galaxies." Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3422316.

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The question whether the observed properties of galaxies are imprinted by the initial conditions of their formation or determined by different evolutionary processes is still open. In the local Universe, more than 60% of stars reside in elliptical galaxies and bulges of lenticular and spiral galaxies. Thus, unveiling the paths of bulge formation and evolution ensures a better understanding of galaxies themselves. The current paradigm separates galactic bulges into two broad categories, namely classical and disk-like bulges. In this scenario, we focus on the description of the bulge component i

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Sasaki, Mei [Verfasser], and Ralf S. [Akademischer Betreuer] Klessen. "Statistical properties of dark matter mini-haloes and the criterion for HD formation in the early universe / Mei Sasaki ; Betreuer: Ralf S. Klessen." Heidelberg : Universitätsbibliothek Heidelberg, 2015. http://d-nb.info/1180395522/34.

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Canonico, Rosangela. "Exact solutions in general relativity and alternative theories of gravity: mathematical and physical properties." Doctoral thesis, Universita degli studi di Salerno, 2011. http://hdl.handle.net/10556/181.

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2009 - 2010<br>In this thesis, we discuss several subjects connected with the framework of GR, in order to characterize astrophysical compact objects. The main purpose is to provide simple models describing gravitational fields generated by isolated compact bodies in stationary rotation with extremely simple internal structure, such as neutron stars. The main tools used for our analysis are exact solutions of Einstein fields equations, which have been approached in different ways. In particular, we use the formalism of junction conditions for finding new solutions of Einstein equations in p

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44

Klepikova, Maria. "Imaging of fractured rock properties from flow and heat transport : field experiments and inverse modelling." Phd thesis, Université Rennes 1, 2013. http://tel.archives-ouvertes.fr/tel-00865302.

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La caracterisation de l'agencement spatial des proprietes hydrauliques est essentielle pour predire les ecoulements et le transport des solutes dans les milieux heterogenes. Les methodes de tomographie hydraulique, principalement developpees pour estimer les proprietes des milieux poreux, n'ont qu'une faible r'esolution spatiale qui ne reflete pas la vraie heterogeneite des distributions de fractures des milieux fractures. Le principal objectif de cette these est de developper une nouvelle methode d'inversion specifique pour imager les proprietés hydrauliques et de transport des milieux fractu

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Wazir, Ibtihal. "Contrôles sédimentaires et diagénétiques sur les propriétés pétrophysiques des réservoirs gréseux à gaz des bassins de Sbaa, Algérie, et des Palmyrides-Sud, Syrie." Phd thesis, Université Paris Sud - Paris XI, 2014. http://tel.archives-ouvertes.fr/tel-01018496.

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Les propriétés pétrophysiques des réservoirs silicoclastiques sont influencées par de nombreux facteurs sédimentaires et diagénétiques. Les principaux phénomènes diagénétiques affectant les réservoirs sont généralement la cimentation de quartz et les compactions mécanique et chimique. Des réservoirs gréseux ayant des contextes géologiques différents ont été considérés dans cette étude ; les réservoirs carbonifères d'origine deltaïque-marine du bassin des Palmyrides-Sud en Syrie et les réservoirs cambro-ordoviciens du bassin de Sbaa en Algérie. Cette thèse consiste à établir l'histoire diagénét

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46

Reatto, Adriana. "Nature et propriétés de l'horizon diagnostic de Latosols du Plateau Central brésilien." Phd thesis, Université d'Orléans, 2009. http://tel.archives-ouvertes.fr/tel-00452642.

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Les Latosols correspondent à environ 40% du Plateau Central brésilien. Ils sont caractérisés par une faible activité de l'argile, une faible différenciation de leurs horizons, une macrostructure peu développée et une microstructure en revanche très développée représentée par des microagrégats de 50 à 300 µm de diamètre. Dix Latosols (L) ont été sélectionnés le long d'une toposéquence régionale d'environ 350 km de long qui recoupe la Surface Sud Américaine (SAS) (L1 à L4) et la Surface Velhas (VS) (L5 à L10). Ces différents Latosols rendent compte de la variabilité de composition granulométriqu

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Titeux, Marc-Olivier. "Restauration et incertitudes structurales : changement d'échelles des propriétés mécaniques et gestion de la tectonique salifère." Phd thesis, Institut National Polytechnique de Lorraine - INPL, 2009. http://tel.archives-ouvertes.fr/tel-00454607.

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Un des objectifs de la restauration structurale, sujet de cette thèse, est de mettre en évidence les défauts d'interprétation ou les zones potentiellement fracturées. L'extension de cette technique en volume nécessite la définition a priori des propriétés des matériaux utilisés, notamment lorsque ces propriétés sont définies à une échelle fine. Une première partie, ce travail propose une méthode de mise à l'échelle des propriétés mécaniques utilisées pour les calculs de restauration en volume. La principale hypothèse repose sur la loi de comportement utilisée pour les matériaux définis à l'éch

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48

Phan, Thi San Ha. "Propriétés physiques et caractéristiques géotechniques des terres noires du Sud-Est de la France." Phd thesis, Grenoble 1, 1993. http://tel.archives-ouvertes.fr/tel-00644886.

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Une formation marneuse, nommée "Terres Noires". se rencontre fréquemment dans presque tout le secteur sud-est de la France.La recherche a visé à approfondir la connaissance des caractéristiques géotechniques des Terres Noires saines ou altérées, de trois régions différentes. le Trièves. la fenêtre de Barcelonnette et le bassin de Draix. Les essais d'identification classiques, comme limites d'Atterberg, granulométrie ..... ,. mais aussi des techniques plus fines (microscope électronique à balayage) ont été mis en oeuvre. Il en résulte qu'à part une différenciation minéralogique, les Terres Noir

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49

Didier, Mathilde. "Etude du transfert réactif de l'hydrogène au sein de l'argilite intacte." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00770176.

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L'hydrogène gazeux va être produit par la corrosion anaérobique des containers dans le stockage géologique de déchets radioactifs. Ce gaz peut avoir un impact sur la stabilité de la couche géologique, du fait d'une part de son caractère réducteur et d'autre part de sa production en continu pendant environ 100 000 ans. Une augmentation de pression locale peut affecter les propriétés hydro-gazo dynamiques des transferts en hydrogène. Le caractère réducteur de H2 peut modifier les propriétés d'oxydo-réduction de l'argilite du Callovo-Oxfordien (COx) et les propriétés hydrauliques de la barrière,

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50

Violay, Marie. "Réservoirs hydro-géothermaux haute enthalpie : apport des propriétés pétrophysiques des basaltes." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 2010. http://tel.archives-ouvertes.fr/tel-00591798.

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La géothermie est considérée comme une source d'énergie propre et inépuisable à échelle humaine. Actuellement, le rendement des centrales géothermiques est limité à l'exploitation de fluides de températures inférieures à 350 °C. L'association de l'activité tectonique et volcanique aux dorsales océaniques fait de l'Islande un lieu où l'extraction de fluides supercritiques (T> 375 °C) peut être envisagée. Cette exploitation pourrait multiplier par dix la puissance électrique délivrée par le système géothermal. Ces fluides peuvent-ils circuler dans la croûte océanique ? Ce travail propose de cont

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