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Dissertations / Theses on the topic 'Granular materials'

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1

Isola, Riccardo. "Packing of granular materials." Thesis, University of Nottingham, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.490980.

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Granular materials are prevalent in the world at macro and micro scales, from the macro-scale of construction materials to the micro-scale of chemical powders. The properties of assemblages of grains are heavily controlled by the interparticle contacts. In order to assist with the better understanding of the means by which granular assemblages behave, this thesis seeks to develop understanding of the number, type and geometrical distribution of the contact points between individual grains.
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2

Liu, Yuanyuan, and 刘媛媛. "Arching in granular materials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B46587196.

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3

Forward, Keith Mitchell. "Triboelectrification of Granular Materials." Cleveland, Ohio : Case Western Reserve University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=case1238090974.

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4

Law, Pak Hei. "Investigations of mobility and impact behaviour of granular flows /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202008%20LAW.

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5

Mounfield, Craig Charles. "Orientational problems in granular materials." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282818.

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6

Bradley, Neil James. "Gravity flows of granular materials." Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292166.

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7

Higgins, Anthony. "The dynamics of granular materials." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259539.

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8

Rege, Nabha V. (Nabha Vithal). "Computational modeling of granular materials." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/10844.

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9

Grinev, Dmitri. "Statistical mechanics of granular materials." Thesis, University of Cambridge, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.621514.

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10

Isert, Nathan. "Dynamics of levitated granular materials." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-27683.

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11

Hostler, Stephen Richard Brennen Christopher E. "Wave propagation in granular materials /." Diss., Pasadena, Calif. : California Institute of Technology, 2005. http://resolver.caltech.edu/CaltechETD:etd-02072005-120514.

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12

Paine, A. C. "Elastic properties of granular materials." Thesis, University of Bath, 1998. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245957.

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13

Holladay, Seth R. "Optimized Simulation of Granular Materials." BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3856.

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Visual effects for film and animation often require simulated granular materials, such as sand, wheat, or dirt, to meet a director's needs. Simulating granular materials can be time consuming, in both computation and labor, as these particulate materials have complex behavior and an enormous amount of small-scale detail. Furthermore, a single cubic meter of granular material, where each grain is a cubic millimeter, would contain a billion granules, and simulating all such interacting granules would take an impractical amount of time for productions. This calls for a simplified model for granul
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14

Padbidri, Jagan Mohan. "A network-cell based framework for multiscale analysis of granular materials." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Dissertations/Spring2010/j_padbidri_041510.pdf.

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15

Lakku, Pavan Misra Anil. "Anisotropic granular models for cohesive materials." Diss., UMK access, 2005.

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Thesis (M.S.)--School of Computing and Engineering. University of Missouri--Kansas City, 2005.<br>"A thesis in civil engineering." Typescript. Advisor: Anil Misra. Vita. Title from "catalog record" of the print edition Description based on contents viewed March 12, 2007. Includes bibliographical references (leaves 75-77). Online version of the print edition.
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16

Fleming, Paul R. "Impact assessment of layered granular materials." Thesis, Loughborough University, 1999. https://dspace.lboro.ac.uk/2134/27822.

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Granular materials utilised in the construction of highway foundation layers are currently specified on the basis of index tests. As a consequence, the material acceptability criteria, although developed from many years' experience, do not directly measure a fundamental performance parameter. Once the granular materials are placed and compacted they are rarely checked and as such no assurance can be given to their likely engineering performance in situ. An important performance parameter, the stiffness modulus, describes the ability of the constructed layer(s) to spread the construction (and i
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17

Fraige, Feras. "Distinct element simulation of granular materials." Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.433993.

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18

Diaz, Begoña Ruiz. "Magnetic properties of granular magnetic materials." Thesis, University of York, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.428429.

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19

Mahmoud, M. A. "Continuously penetrating bodies in granular materials." Thesis, University of Southampton, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356027.

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20

Chilukwa, Nathan Ntanda. "Vibratory hammer compaction of granular materials." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80132.

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Thesis (MScEng)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Compaction is one of the key processes in the construction of road pavement layers. Not only is it significant in ensuring the structural integrity of the material in the road layers, but it also has an influence on the engineering properties and performance of the soil material. A poorly compacted material is characterised by low density, high porosity and below standard shear strength. This, as a result causes rutting, moisture susceptibility, potholing, corrugations and passability problems on the road. Therefore, it
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21

Nixon, Stuart A. "Yield functions suitable for granular materials." Thesis, University of Aberdeen, 1999. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU122515.

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The behaviour of granular materials is complex. Unlike all other engineering materials their volume change does not only depend upon an applied mean stress, but also on the change in shape of the body. This complexity in the behaviour makes it difficult to develop useful constitutive equations which describe the behaviour. Many constitutive models exist for granular materials. Using an established approach new models, suitable for simulating small cyclic strains, are presented within this thesis. The basis for these models is a new dilatancy rule. By setting the volume strain proportional to t
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22

Liu, Alfred D. "Numerical modeling of granular magnetic materials /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2000. http://wwwlib.umi.com/cr/ucsd/fullcit?p9989763.

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23

Nguyen, Thi Thu Tra. "Dynamic instabilities of model granular materials." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSET007/document.

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Cette thèse étudie les instabilités dynamiques des milieux granulaires modèles saturés à l’aide d’un appareil triaxial classique. Les instabilités englobent la liquéfaction et les effondrements en compression isotrope drainée, les frottements saccadés en compression triaxiale drainée. Ces instabilités apparaissent spontanément à des contraintes effectives de confinement imprévisibles. Elles sont accompagnées de très rapides et très fortes surpressions interstitielles, malgré un drainage approprié; ce que ne présentent pas les milieux granulaires naturels. En compression isotrope drainée (conso
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24

Sharrock, Glenn. "Tool shearing of granular media /." St. Lucia, Qld, 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17559.pdf.

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25

Magnusson, Simon. "Environmental Perspectives on Urban Material Stocks used in Construction : Granular Materials." Licentiate thesis, Luleå tekniska universitet, Geoteknologi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-60305.

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The peoples demand of functions and services in cities is the driver for energy and material flows. Most people in the world are now living in urban areas. In order to achieve a sustainable development of cities, both resource use and environmental impact have to be reduced. For construction activities, an important aspect is to increase the reuse of construction materials. From a resource perspective, the urban demand for construction of buildings, infrastructure and other facilities results in materials accumulated in constructions but also in other applications and in landfills. The materia
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26

Lee, Seunghun Marghitu Dan B. "Impacts of kinematic links with a granular material." Auburn, Ala., 2009. http://hdl.handle.net/10415/1751.

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27

Wijewickreme, Dharmapriya. "Constant volume friction angle of granular materials." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26342.

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The postulate that the constant volume friction angle Φ[sub cv] of a granular material is unique is verified experimentally. The constant volume friction angle of a wide spectrum of granular granular materials is measured using the ring shear device, enabling the material to be sheared to large, in fact unlimited strains at which 0cv is mobilized. Granular materials tested were composed of particles ranging from minerals to metals. The effects of confining pressure, initial packing density, particle size, gradation and particle shape on the value of Φ[sub cv] are studied. The possible influenc
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28

Hui, Pak-Ming. "Topics in the physics of granular materials /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487332636473225.

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29

Hossain, MD Tanvir. "Mobility in granular materials upon dynamic loading." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/22976.

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This Thesis explores the mechanisms controlling the mobility of large objects embedded in granular materials. The goal is to establish which loading conditions lead to their motion and to identify the underlying physical mechanisms. To this aim, laboratory experiments were conducted using a canonical mobility test, which involves uplifting a plate embedded in a dry granular packing vertically. The experimental conditions were varied in order to evidence the effect of the presence of water in the granular packing, and the effect of dynamic loadings whereby the plate is moved at different veloci
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30

Zhai, Chongpu. "Stress-dependent electrical conduction in granular materials." Thesis, The University of Sydney, 2017. http://hdl.handle.net/2123/17975.

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This dissertation is focused on electrical conduction behaviour in granular systems with the purpose of acquiring a fundamental understanding towards applications of granular materials. Performance in a range of engineering systems can be largely influenced by complex multi-physics interactions arising from microstructures of granular materials. The bulk of this dissertation is built on six published or submitted papers. After project background and related previous work introduced in Chapters 1 and 2, respectively, Chapters 3 and 4 deal primarily with the contact properties between rough sur
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31

Dai, Beibing, and 戴北冰. "Micromechanical investigation of the behavior of granular materials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45700680.

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32

Dierichs, Karola [Verfasser], and Achim [Akademischer Betreuer] Menges. "Granular architectures : granular materials as "designer matter" in architecture / Karola Dierichs ; Betreuer: Achim Menges." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2020. http://d-nb.info/1205736948/34.

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33

Bowman, Elisabeth Therese. "The ageing and creep of dense granular materials." Thesis, University of Cambridge, 2002. https://www.repository.cam.ac.uk/handle/1810/251841.

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34

Dawson, Janet Caroline. "The electronic properties of granular and amorphous materials." Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.318097.

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35

Kamal, Mumtaz Ahmed. "Behaviour of granular materials used in flexible pavements." Thesis, Queen's University Belfast, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333824.

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36

Lambert, John Peter. "Novel assessment test for granular road foundation materials." Thesis, Loughborough University, 2007. https://dspace.lboro.ac.uk/2134/3099.

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Drivers for sustainability have made it necessary for the construction industry to adapt its traditional processes to become both more efficient and produce less waste. Performance based design and specification in the UK for motorways and trunk roads permits a very flexible approach to pavement design, material selection and performance related testing aimed at utilising materials to their maximum potential. However, it is clear that within the emerging philosophy of using materials that are 'fit for purpose' there are many technical challenges for design and specification. There is a need to
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37

Karlsson, Tomas. "Finite element simulation of flow in granular materials." Licentiate thesis, Luleå tekniska universitet, 1996. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-26139.

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38

Lopatina, Lena M. "Statistical Mechanics of Nanoparticle Suspensions and Granular Materials." Kent State University / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=kent1310414818.

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39

Jiang, Sheng. "Fracture and Fragmentation of Granular Materials Under Impact." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/20250.

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Fracturing plays an important role in controlling the compaction behaviour of granular materials under impact. Associated effects include changes to porosity and permeability, especially along earthquake faults, and during mining and petroleum production processes. The overarching objective of this thesis is to understand the intrinsic fracture mechanisms of both pure brittle granular materials and cemented granular materials. Fracture mechanisms are quantitatively analysed in terms of energy dissipation during high speed grain fracture and fragmentation process. Furthermore, the effects of bo
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40

Tengattini, Alessandro. "A micro-mechanical study of cemented granular materials." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/13973.

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Cemented Granular Materials (CGMs) are ubiquitous in nature. Their behaviour is driven by phenomena occurring at the scale of individual grains and cement bonds. However, the effect of this scale on the engineering response has lacked a systematic description and is rarely acknowledged in the models portraying their behaviour. This dissertation contributes to the development of a methodological framework for CGMs, relating the behaviour of individual grains to their collective response at the macroscopic scale, through a combination of analytical, experimental and numerical approaches. Analy
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41

Darabi, Babak. "Dissipation of vibration energy using viscoelastic granular materials." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/3929/.

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This work addresses the way in which a viscoelastic granular medium dissipates vibration energy over broad ranges of frequency, amplitude and direction of excitation. The viscoelastic properties (modulus and loss factor) of polymer particles are obtained experimentally both by deriving the master curve of the material and by measuring the stiffness of these spherical particles at different frequencies using a test rig designed for this purpose. Three dimensional Discrete Element Method (DEM) is used to develop a numerical model of the granular medium and is validated by comparison with experim
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42

CHIEREGATO, ALESSIO. "Permeation grouting of granular soils by innovative materials." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2601354.

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The injection technique based on cement mixtures had a constant evolution since its first application in 1802 by Bérigny for the rehabilitation of masonry diving. Later it was implemented in France and England in the mid-1800s, but by the twentieth century it has started to spread and to globalize the method for applications related to the ground treatment. Initially it was used for the construction of hydraulic works mainly by injecting unstable cement suspensions, with which they could only deal fissured rocks and were therefore excluded granular soils. Then techniques moved to stable cement
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43

Hudson, Shaymus William. "Mechanical characterization of jammable granular systems." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/75850.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2012.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Cataloged from student-submitted PDF version of thesis.<br>Includes bibliographical references (p. 36-37).<br>The mode by which a granular material can transition between fluid-like and solid-like states has been often referred to as jamming. The use of this property (via vacuum pressure) for engineering applications has only recently been e
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44

Morris, Billy Ray. "Grain size estimation in anisotropic materials." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/20042.

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45

Gu, Xiaoqiang, and 顾晓强. "Dynamic properties of granular materials at the macro and microscales." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B47752622.

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Dynamic properties of soil, including modulus and damping, play essential roles in evaluating the response of the soil deposit and its supporting structures when subjected to dynamic loads induced by earthquakes, traffic, explosions, machine foundations, and so on. It is well recognized that the dynamic properties of soil are affected by many factors, such as strain amplitude, stress condition, void ratio, saturation and gradation. Despite tremendous works have been done, the macroscopic effects of several key factors on the dynamic properties of granular material are not yet fully und
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46

Li, Xia. "Micro-scale investigation on the quasi-static behavior of granular material /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?CIVL%202006%20LI.

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47

Holyoake, Alexander James. "Rapid granular flows in an inclined chute." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610681.

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48

Cardona, Florez Jorge Eduar 1984. "Instabilidades de um leito granular submetido a um escoamento turbulento." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/265793.

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Orientador: Erick de Moraes Franklin<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Mecânica<br>Made available in DSpace on 2018-08-27T18:01:24Z (GMT). No. of bitstreams: 1 CardonaFlorez_JorgeEduar_M.pdf: 8246209 bytes, checksum: 9860a8456aed83e182b9580704940549 (MD5) Previous issue date: 2015<br>Resumo: Na natureza e na indústria é comum encontrar fluidos em movimento transportando grãos quando escoam sobre superfícies granulares. Por exemplo, na natureza o transporte de areia por rios e mares quando o fluido é um liquido, ou na formação e migração de
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49

Jadrnak, Sharon Marie. "Experimental studies of bimodal granular material flows." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/16107.

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Reis, Gabriela dos 1985. "Eficiência de filtros de areia recoberta com nanopartículas de prata na remoção de microesferas de poliestireno." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/257943.

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Orientador: Ricardo de Lima Isaac<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo<br>Made available in DSpace on 2018-08-26T15:48:00Z (GMT). No. of bitstreams: 1 Reis_Gabrielados_M.pdf: 4501335 bytes, checksum: f41add1d19b9cc7987740fb6604a17ed (MD5) Previous issue date: 2014<br>Resumo: Dentre as etapas do tratamento de água para abastecimento público a filtração é essencial para remoção de partículas e microorganismos nocivos à saúde humana. Devido ao reduzido tamanho e resistência à cloração, os oocistos de Cryptosporidiu
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