Tesis sobre el tema "Dense and porous structure"
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Singh, Kamaljit Engineering & Information Technology Australian Defence Force Academy UNSW. "Dynamics of residual non-aqueous phase liquids in porous media subject to freeze-thaw". Awarded by:University of New South Wales - Australian Defence Force Academy. Engineering & Information Technology, 2009. http://handle.unsw.edu.au/1959.4/44875.
Texto completoFüldner, Gerrit y Andreas Velte. "Water adsorption kinetics and diffusion in dense SAPO-34 layers on porous aluminium fibre structures – macroscopic measurements by a Volumetric Differential Pressure Step Method". Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-198145.
Texto completoFüldner, Gerrit y Andreas Velte. "Water adsorption kinetics and diffusion in dense SAPO-34 layers on porous aluminium fibre structures – macroscopic measurements by a Volumetric Differential Pressure Step Method: Water adsorption kinetics and diffusion in dense SAPO-34 layers on porousaluminium fibre structures – macroscopic measurements by a VolumetricDifferential Pressure Step Method". Diffusion fundamentals 24 (2015) 15, S. 1, 2015. https://ul.qucosa.de/id/qucosa%3A14529.
Texto completoTazi, Bouchra. "Élaboration et caractérisation d'une nouvelle membrane minérale conductrice ionique à structures dense et microporeuse". Montpellier 2, 1988. http://www.theses.fr/1988MON20138.
Texto completoChan, Wing Nin. "Comparison of the wearing of porous and dense NiTi shape memory alloy". access abstract and table of contents access full-text, 2006. http://libweb.cityu.edu.hk/cgi-bin/ezdb/dissert.pl?msc-ap-b21458406a.pdf.
Texto completo"Master of Science in Materials Engineering & Nanotechnology dissertation." Title from title screen (viewed on Nov. 23, 2006) Includes bibliographical references.
Kou, Shuting y 寇舒婷. "Porous structure modeling with computers". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/206700.
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Mechanical Engineering
Master
Master of Philosophy
He, Xing. "Processing of porous and dense ceramics using natural polymer binders for biomedical applications". Thesis, University of Bristol, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.503879.
Texto completoŞimşek, Deniz Çiftçioğlu Muhsin. "Preparation and characterization of HA powders-dense and porous HA based composite materials/". [s.l.: [s.n.], 2002. http://library.iyte.edu.tr/tezler/master/malzemebilimivemuh/T000326.pdf.
Texto completoMarangoni, Mauro. "Dense and porous glass and glass ceramics from natural and waste raw materials". Doctoral thesis, Università degli studi di Padova, 2016. http://hdl.handle.net/11577/3424468.
Texto completoIl principale obiettivo delle attività di ricerca qui presentate riguardano lo sviluppo di nuovi processi e materiali per applicazioni in edilizia adattate alle esigenze dell'Arabia Saudita in base alle informazioni scambiate con i partner di KACST (King Abdulaziz City of Science and Technology). L'attività di ricerca è stata focalizzata sullo sviluppo di una vasta gamma di componenti ceramici mediante sintercristallizzazione di vetri prodotti da rifiuti (ceneri volanti e scorie) con o senza l'aggiunta di fondenti come rottame di vetro o silicati. Le materie prime sono state miscelate in rapporti adeguati alla produzione di composizioni ceramiche adatte all’utilizzo in edilizia; ad esempio piastrelle vetroceramiche, pannelli alleggeriti e aggregati leggeri. Vetroceramiche e ceramiche, dense e porose, sono state realizzate come sostituti alle pietre naturali e ai ceramici tradizionali. Vetroceramici densi presentano proprietà eccezionali (durezza, resistenza meccanica, durabilità), mentre vetroceramiche porose presentano ridotte densità e conducibilità termica. Inoltre sinterizzando fritte vetrose sono stati ottenuti smalti altamente riflettenti con bianchezza corrispondente al marmo di Thassos. Tutti i materiali sviluppati sono basati sull'utilizzo di risorse naturali o materiali di scarto provenienti dall’Arabia Saudita. Inoltre, sono state sviluppate diverse tecniche per la schiumatura diretta di vetroceramiche, portando alla realizzazione di materiali altamente porosi con celle principalmente chiuse. Utilizzando tecniche alternative sono state invece sviluppate vetroceramiche con una prevalenza di celle aperte.
Anderson, Michael Robert. "The dissolution and transport of dense non-aqueous phase liquids in saturated porous media /". Full text open access at:, 1988. http://content.ohsu.edu/u?/etd,171.
Texto completoSaedi, Soheil. "Shape Memory Behavior of Dense and Porous NiTi Alloys Fabricated by Selective Laser Melting". UKnowledge, 2017. http://uknowledge.uky.edu/me_etds/90.
Texto completoMüller, Matthias H. "The structure of dense polymer systems : geometry, algorithms, software /". [S.l.] : [s.n.], 1999. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13096.
Texto completoAl-Khuzaee, Jafar Hameed. "X-ray absorption edge structure in hot dense plasmas". Thesis, University of Essex, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424128.
Texto completoSadykova, Saltanat. "Electric microfield distributions and structure factors in dense plasmas". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2011. http://dx.doi.org/10.18452/16316.
Texto completoThe electric microfield distributions (EMDs) and its tails have been studied for electron one-component plasma (OCP), electron-positron, hydrogen and single-ionized alkali two-component plasmas (TCP) in a frame of different pseudopotential models (PM) and compared with Molecular Dynamics (MD) and Monte-Carlo simulations as well as with experiments. The theoretical methods used for calculation of EMDs are a coupling-parameter integration technique (CPIT) developed by C. A. Iglesias for OCP and the generalized CPIT proposed by J. Ortner et al. for TCP. We studied the EMDs in a frame of the screened Kelbg, Deutsch, Hellmann-Gurskii-Krasko (HGK) PMs which take into account quantum-mechanical, screening effects and the ion shell structure (HGK) due to the Pauli exclusion principle. The screening effects were introduced on a base of Bogoljubov-Born-Green-Kirkwood-Yvon method. We used the screened HGK pseudopotential in the Debye approximation as well as in a moderately coupled plasma approximation. The influence of the plasma coupling parameter on the EMD along with the ion shell structure was investigated. We determined different types of asymptotic behaviour of EMD tails in dependence on the plasma type, parameters and radiator. Comparison of a synthetic Li2+ Lyman spectrum as well as comparison of a synthetic Li II 548 nm line with experimental data allows us to conclude that the EMD, obtained on a base of the CPIT method for OCP within the HGK PM and MD, provides a good agreement with the experiment. We have calculated the partial and charge-charge static structure factors (SSF) for alkali and Be2+ plasmas using the method described by G. Gregori et al.. We have calculated the dynamic structure factors (DSF) for alkali plasmas using the method of moments developed by V. M. Adamyan et al. In both methods the screened HGK pseudopotential has been used.
Tsuboi, Takashi. "Structure and Properties of Porous Silicon Surface". Kyoto University, 1999. http://hdl.handle.net/2433/181681.
Texto completoFeng, Yuping. "Design and characterization of dense and porous Fe-based alloys for biomedical and environmental applications". Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/460679.
Texto completoThis Thesis dissertation covers different synthetic approaches to obtain Fe-based alloys to be used for biomedical and environmental applications. Special emphasis has been placed to design a proper composition and to study the morphology and structural properties to tailor both the mechanical and magnetic properties of the resulting materials. Firstly, ferromagnetic Fe-10Mn6Si1Pd (wt.%) and shape memory, paramagnetic Fe-30Mn6Si1Pd (wt.%) compact alloys were prepared by arc-melting followed by copper mold suction casting. The evolution of microstructure, mechanical and magnetic properties, as well as the assessment of degradation, cytotoxicity and cell proliferation in Hank’s solution as a function of the immersion time were systermatically studied. With the aim to improve the biocompatibility of the Fe-10Mn6Si1Pd alloy, calcium phosphate coatings (CaP) (i.e., brushite and hydroxyapatite) were electrodeposited on the alloy by pulsed current electrodeposition. Due to porous structures resulting from needle-, rod- or plate-like morphologies, the measured Young’s modulus and hardness of these coatings were lower than those of fully-dense CaP layers with analogous compositions. Then, to increase the degradation rate and to reduce the Young’s modulus of the fully bulk alloys, porous Fe-30Mn6Si1Pd (wt.%) alloys were prepared by a simple press and sinter process from ball-milled Fe, Mn, Si and Pd powders blended with 10 wt.%, 20 wt.% and 40 wt.% NaCl. Remarkably, the reduced Young’s modulus of all the porous alloys reached values close to 20 GPa after long-term immersion, a value which is close to the Young’s modulus of human bones (3–27 GPa), hence favoring good biomechanical compatibility between an eventual implant and the neighboring bone tissue. Meanwhile, open cell Fe and Fe-Mn oxides foams were prepared by the replication method using porous polyurethane templates. The magnetic response of the foams, from virtually non-magnetic to ferrimagnetic, could be tailored by controllably adjusting the Mn content as well as the N2 flow rate. Still dealing with magnetic properties, femtosecond pulsed laser irradiation was used to create periodic magnetic patterns at the surface of a non-ferromagnetic amorphous Fe-based alloy. Finally, a nanoporous Fe-rich alloy was prepared by selective dissolution of melt-spun Fe43.5Cu56.5 ribbons. The nanoporous ribbons were found to be an excellent heterogeneous Fenton catalyst towards the degradation of methyl orange in aqueous solution.
Wu, Jeremy Po-Wei. "Reuse of silicate wastes : process development and property measurements of dense and porous glass-ceramics". Thesis, Imperial College London, 2006. http://hdl.handle.net/10044/1/11374.
Texto completoBagul, Ruchita D. "Preparation of dense barium cerate film on a planar porous support for hydrogen separation membranes". [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0005383.
Texto completoVillerot, Sophie. "Structure microscopique et dynamique des vortex dans un superfluide dense". Phd thesis, Ecole normale supérieure de lyon - ENS LYON, 2012. http://tel.archives-ouvertes.fr/tel-00775920.
Texto completoAlgarra, Nicolas Pierre. "Pénétration d'une fibre flexible dans un milieu granulaire dense". Thesis, Paris 6, 2016. http://www.theses.fr/2016PA066500/document.
Texto completoWe study experimentally a fluid/structure interaction between an elastic fiber and a dense granular medium near the jamming transition. In our horizontal setup, a bidimensionnal and dense random packing is interacting with a clamped elastic fiber. The clamped end of the fiber is in translation relative to the the grains while the free end faces initially the grain flux in a penetration geometry before being deflected by grain/fiber interactions. The control parameters of our system are the packing fraction of the medium, the length and the rigidity of the fiber. Our setup allows us to measure the deflected shape of the fiber, the forces exerted by the grains on the fiber (including the drag force) and to follow the reorganizations of the granular medium. Under some experimental conditions, we observed that this system exhibits several regimes of evolution. For low and large fiber deflections, the system evolves stochastically as a consequence of the random nature of the granular medium : respectively small fluctuations of the fiber around its equilibrium position and sudden events of unlozding of the fiber in flexion associated to granular avalanches. The transition between those two regimes is associated with a symmetry breaking that affects the granular medium as well as the fiber. In a first part, we study how the fiber deflection is influenced by the control parameters, particularly by the distance to jamming. In a second part, we show that a packing fraction asymmetry appears in the granular medium when the fiber is deflected enough. In a third part, we try to understand the evolution of the measured forces using numerical simulations of the Elastica on a constrained beam. Finally, we propose a model of compaction of the grains by the fiber that is in a good aggreement with the experimental evolution of the system. An application of this thesis is the understanding of the mechanisms involved in the penetration of a root or a beam in a granular soil
Hawkins, Jared B. "Effect of Hydraulic Conductivity Heterogeneity on the Movement of Dense and Viscous Fluids in Porous Media". The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1321978016.
Texto completoArnold, Donna Claire. "Structure and electronic properties of porous manganese oxides". Thesis, University College London (University of London), 2004. http://discovery.ucl.ac.uk/1446478/.
Texto completoRühle, Bastian. "Structure, dynamics and interactions in porous host-guest systems". Diss., Ludwig-Maximilians-Universität München, 2013. http://nbn-resolving.de/urn:nbn:de:bvb:19-169902.
Texto completoMisawa, Masaki, Naoki Takada, Hiroshi Yamashita, Shingo Satake y Kazuhiro Yamamoto. "Lattice Boltzmann simulation on porous structure and soot accumulation". Elsevier, 2006. http://hdl.handle.net/2237/20046.
Texto completoHansen, Eddy W. y Hans Christian Gran. "Probing pore-structure within porous polymer particles by NMR". Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-194852.
Texto completoLundberg, Eva. "Micro-Structure Modelling of Acoustics of Open Porous Material". Licentiate thesis, KTH, Farkost och flyg, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-187322.
Texto completoThe work has been carried out within the Centre for ECO2 Vehicle Design.
QC 20160523
Hansen, Eddy W. y Hans Christian Gran. "Probing pore-structure within porous polymer particles by NMR". Diffusion fundamentals 3 (2005) 21, S. 1-2, 2005. https://ul.qucosa.de/id/qucosa%3A14312.
Texto completoBaychev, Todor. "Pore space structure effects on flow in porous media". Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/pore-space-structure-effects-on-flow-in-porous-media(5542173d-d6d1-4768-9f38-4b41254fa194).html.
Texto completoRapold, Roland Fritz. "Atomistic simulation of the structure and ring motion of dense, amorphous polystyrene /". [S.l.] : [s.n.], 1993. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10308.
Texto completoMuñiz, Navarro José Alberto. "A hybrid data structure for dense keys in in-memory database systems". Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/62662.
Texto completoCataloged from PDF version of thesis.
Includes bibliographical references (p. 71-72).
This thesis presents a data structure which performs well for in-memory indexing of keys that are unevenly distributed into clusters with a high density of keys. This pattern is prevalent, for example, in systems that use tables with keys where one field is auto-incremented. These types of tables are widely used. The proposed data structure consists of a B+ Tree with intervals as keys, and arrays as values. Each array holds a cluster of values, while the clusters themselves are managed by the B+ Tree for space and cache efficiency. Using the H-Tree as an in-memory indexing structure for an implementation of the TPC-C benchmark sped up the transaction processing time by up to 50% compared to an implementation based on B+Trees, and showed even more dramatic performance gains in the presence of few and large clusters of data.
by José Alberto Muñiz Navarro.
M.Eng.
Totten, Christian T. "Effect of porous media and fluid properties on dense Non-Aqueous Phase Liquid migration and dilution mass flux". [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0010044.
Texto completoNASCIMENTO, MARCELO DE MATTOS. "USING DENSE 3D RECONSTRUCTION FOR VISUAL ODOMETRY BASED ON STRUCTURE FROM MOTION TECHNIQUES". PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=26102@1.
Texto completoAlvo de intenso estudo da visão computacional, a reconstrução densa 3D teve um importante marco com os primeiros sistemas em tempo real a alcançarem precisão milimétrica com uso de câmeras RGBD e GPUs. Entretanto estes métodos não são aplicáveis a dispositivos de menor poder computacional. Tendo a limitação de recursos computacionais como requisito, o objetivo deste trabalho é apresentar um método de odometria visual utilizando câmeras comuns e sem a necessidade de GPU, baseado em técnicas de Structure from Motion (SFM) com features esparsos, utilizando as informações de uma reconstrução densa. A Odometria visual é o processo de estimar a orientação e posição de um agente (um robô, por exemplo), a partir das imagens. Esta dissertação fornece uma comparação entre a precisão da odometria calculada pelo método proposto e pela reconstrução densa utilizando o Kinect Fusion. O resultado desta pesquisa é diretamente aplicável na área de realidade aumentada, tanto pelas informações da odometria que podem ser usadas para definir a posição de uma câmera, como pela reconstrução densa, que pode tratar aspectos como oclusão dos objetos virtuais com reais.
Aim of intense research in the field computational vision, dense 3D reconstruction achieves an important landmark with first methods running in real time with millimetric precision, using RGBD cameras and GPUs. However these methods are not suitable for low computational resources. Having low computational resources as requirement, the goal of this work is to show a method of visual odometry using regular cameras, without using a GPU. The proposed method is based on technics of sparse Structure From Motion (SFM), using data provided by dense 3D reconstruction. Visual odometry is the process of estimating the position and orientation of an agent (a robot, for instance), based on images. This dissertation compares the proposed method with the odometry calculated by Kinect Fusion. Results of this research are applicable in augmented reality. Odometry provided by this work can be used to model a camera and the data from dense 3D reconstruction, can be used to handle occlusion between virtual and real objects.
Heptner, Nils. "Dynamics and non-equilibrium structure of colloidal dumbbell-shaped particles in dense suspensions". Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät, 2016. http://dx.doi.org/10.18452/17518.
Texto completoBesides being important for industrial applications, colloidal suspensions have long served as model systems for investigating the structure and dynamics of condensed matter. Recently, it has been demonstrated experimentally that apparently a small particle anisotropy is sufficient to dramatically change the viscoelastic response under external shearing fields, of which the microscopic mechanisms are not yet sufficiently understood. In the present work, NEBD simulations of colloidal hard dumbbells in oscillatory shear fields are developed and employed to elucidate the novel findings in close connection with comprehensive rheology and SANS experiments. Furthermore, by utilising BD simulations and linear response theory, the impact of anisotropy on structure and dynamics of such suspensions in equilibrium is analysed. In the linear response limit, the shear viscosity exhibits a dramatic increase at high packing fractions beyond a critical anisotropy of the particles. This indicates that newly occurring, collective rotational-translational couplings must be made responsible for slow time scales appearing in the PC. Moreover, a non-equilibrium transition emerging at moderate aspect ratios is revealed by NEBD of plastic crystalline suspensions under oscillatory shear. This transition behaviour is systematically studied. It is demonstrated that the continuous nature of the transition is retained for very low aspect ratios only. Above a certain aspect ratio, the transition is mediated by an intermediate disordered state. Furthermore, a partially oriented sliding layer state featuring a finite collective order in the particles'' orientations is observed at high strains. Hence, this thesis demonstrates that the NEBD simulations explain novel phenomena in rheology and scattering experiments. In the light of these experiments, it is shown that the orientational degree of freedom has a vigorous impact on the structural transition under increasing oscillatory shear.
Dvoyashkin, Muslim, Alexey Khokhlov, Rustem Valiullin, Jörg Kärger y Matthias Thommes. "Fluid behavior in porous silicon channels with complex pore structure". Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-190953.
Texto completoDvoyashkin, Muslim, Alexey Khokhlov, Rustem Valiullin, Jörg Kärger y Matthias Thommes. "Fluid behavior in porous silicon channels with complex pore structure". Diffusion fundamentals 11 (2009) 80, S. 1-2, 2009. https://ul.qucosa.de/id/qucosa%3A14045.
Texto completoKlym, H. I. y I. V. Hadzama. "Evolution of Porous Structure in Technologically Modified MgO-Al2O3 ceramics". Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35403.
Texto completoMarshall, Andrew J. "Porous hydrogels with well-defined pore structure for biomaterials applications /". Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/8559.
Texto completoMugerwa, M. N. "Stochastic network modelling of porous media in two dimensions". Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378652.
Texto completoHuang, Yingqing. "Characterization of dense suspensions using frequency domain photon migration". Texas A&M University, 2003. http://hdl.handle.net/1969.1/2207.
Texto completoAlat, Gokcen. "A Variable Structure - Autonomous - Interacting Multiple Model Ground Target Tracking Algorithm In Dense Clutter". Phd thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615512/index.pdf.
Texto completoincorporate a priori information such as topographic constraints, road maps as much as possible
use enhanced gating techniques to minimize the eect of clutter
develop methods against stop-move motion and hide motion of the target
tackle on-road/o-road transitions and junction crossings
establish measures against non-detections caused by environment. The tracker structure is derived using a composite state estimation set-up that incorporate multi models and MAP and MMSE estimations. The root mean square position and velocity error performances of the VS-A-IMM algorithm are compared with respect to the baseline IMM and the VS-IMM methods found in the literature. It is observed that the newly developed VS-A-IMM algorithm performs better than the baseline methods in realistic conditions such as on-road/o-road transitions, tunnels, stops, junction crossings, non-detections.
Marín, Aguilar Susana. "Local structure and dynamics of dense colloidal systems : from patchy particles to hard spheres". Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASP052.
Texto completoThe role played by the structure in determining the dynamics of glassy colloidal systems is still a subject of debate. However, there is compelling evidence of a direct link between changes in the local structure and the dynamical slowdown in glassy systems. Here, we explore the interplay between local structure and dynamics by using patchy particles as glass formers. This is done by making use of molecular dynamics simulations. We show that reinforcing icosahedral geometry causes, the system to exhibit an extreme slowdown in its dynamics. With these results, we provide a route for controlling glassy dynamics through the use of patchy particles. Additionally, an interesting point is whether we can extract information about dynamics from only structural information. In order to explore this point, we simulate a wide variety of hard-sphere mixtures. We show that global dynamics of these systems can be precisely predicted by quantifying the tetrahedrality of the local structure: an order parameter that consists of counting the number of tetrahedra each particle participates in. The predictions of this order parameter maintain their accuracy over a wide variety of densities proving its universality in this family of glass formers. Moreover, it is also capable of capturing the changes in the local dynamics, as regions with high tetrahedrality are strongly correlated with regions with slow dynamics. Finally, we demonstrate that unsupervised machine learning techniques can be used to classify particles with different structural environments, which are strongly correlated to local dynamics
Hatchel, Jennifer M. "Structure and Function of the Electron-dense Core in Mycoplasma pneumoniae and its Relatives". Miami University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=miami1248183957.
Texto completoTazi, Bouchra. "Elaboration et caractérisation d'une nouvelle membrane minérale conductrice ionique à structure dense et microporeuse". Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376188163.
Texto completoNsir, Khalifa. "Experimental and numerical study of the migration of dense non-aqueous phase liquid in saturated porous medium at Darcy scale". Strasbourg, 2009. https://publication-theses.unistra.fr/public/theses_doctorat/2009/NSIR_Khalifa_2009.pdf.
Texto completoThe immiscible displacement processes of a dense non-aqueous phase liquid (DNAPL) were studied in a sand-filled column. The considered pollutant is the Trichloroethylene, volatile and soluble chlorinated solvent, usually found in soils and ground water industrial pollution. Experiments were performed using two flow modes, namely vertical-upwards and vertical- downwards. A Fibre optic sensors were developed to measuring the arrival times of water/DNAPL at a control section of experiment device. The DNAPL pressure at the inlet and outlet section of the system was also monitored. The experiment program also allowed for measuring the local DNAPL saturations. Thereby, permitting to quantify evolving fingering patterns of non aqueuse phase liquid in the saturated porous medium. It has also been shown that the distribution of the non aqueuse phase liquid in the porous medium is heterogeneous. Furthermore, the obtained results underline that buoyancy forces (gravity) can have significant effects on the stability of the displacement process and on the oil recovery efficiency during injection of water. Numerically, a pore-scale network model based on spherical pore bodies and cylindrical pore throats was developed to simulate laboratory experiment. A computational approach based on the theory of packing spheres has also been developed to assess the geometric characteristics of the equivalent network of the used porous medium in the experiment. Good agreement between the numerical and experimental results was obtained. An important feature of the model is its capability to reproduce the observed pressure behaviour for stable and unstable displacement regimes
Ikeda, Noboru. "Quantitative comparison of osteoconduction of porous, dense A-W glass-ceramic and hydroxyapatite granules (effects of granule and pore size)". Kyoto University, 2000. http://hdl.handle.net/2433/180891.
Texto completoRice, Johnathan Scott. "The Transition From Diffuse to Dense Molecular Clouds". University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1534945134382193.
Texto completoGurnagul, N. (Norayr). "Some effects of relative humidity on the porous structure of paper". Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74013.
Texto completoMathews, Tobias John. "Void structure, colloid and tracer transport properties of stratified porous media". Thesis, University of Plymouth, 1999. http://hdl.handle.net/10026.1/2794.
Texto completoEvans, Nathan Timothy. "Processing-structure-property relationships of surface porous polymers for orthopaedic applications". Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/55004.
Texto completoStrömberg, Ella. "Characterizing the pore structure of porous matrices using SEQ-NMR spectroscopy". Thesis, Uppsala universitet, Institutionen för biologisk grundutbildning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414081.
Texto completo