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Дисертації з теми "Dispersible materials"

Автор: Grafiati

Опубліковано: 28 травня 2022

Оновлено: 31 липня 2025

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1

Fletcher, Dean. "Synthesis of dispersible nanostructures using anti-sintering cast materials." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8591/.

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At the elevated temperatures required for metal carbide synthesis, atomic diffusion across particle boundaries can occur, resulting in the fusion of smaller particles into larger ones. This process is termed sintering. By providing a physical barrier for the inhibition of sintering, in the form of easily removable alkaline earth metal oxide “cast materials”, this thesis shows that Prussian Blue nanoparticles can undergo thermal decomposition to produce discrete Fe3C nanoparticles. The overarching aim of this work is to push the boundaries of metal carbide synthesis by forming the basis of a te

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2

Tawa, Tsutomu. "Studies on Reactive Water-Dispersible Polyisocyanate and Polyurethane-Urea Micelle as Coating Materials." 京都大学 (Kyoto University), 2008. http://hdl.handle.net/2433/57280.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(工学)<br>甲第13847号<br>工博第2951号<br>新制||工||1436(附属図書館)<br>26063<br>UT51-2008-C763<br>京都大学大学院工学研究科高分子化学専攻<br>(主査)教授伊藤紳三郎, 教授中條善樹, 教授瀧川敏算<br>学位規則第4条第1項該当

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3

Cupone, I. E. "MALTODEXTRINS AS FILM FORMER MATERIALS FOR THE DESIGN OF ORAL DISPERSIBLE FILMS AND TRANSDERMAL PATCHES." Doctoral thesis, Università degli Studi di Milano, 2009. http://hdl.handle.net/2434/152399.

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This work aimed to study maltodextrin as main film forming material and their application in the design of oral dispersible films and pressure sensitive adhesives. Maltodextrins (MDX), having dextrose equivalent (DE) in the 6-12 range plasticized with 16–20% w/w glycerine (GLY), are suitable to produce fast-dissolving films by casting and solvent evaporation or hot-melt extrusion. Compared to the hot-melt extrusion method, the casting method appeared more reliable for the production of fast-dissolving films since the dosage forms exhibited the best performances in terms of in vitro and in viv

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4

Qu, Haiou. "Surface Functionalized Water-Dispersible Magnetite Nanoparticles: Preparation, Characterization and the Studies of Their Bioapplications." ScholarWorks@UNO, 2012. http://scholarworks.uno.edu/td/1536.

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Iron oxide magnetic nanoparticle synthesis and their surface functionalization hold a crucial position in the design and fabrication of functional materials for a variety of biomedical applications. Non-uniform nanoparticles with poor crystallinity, prepared by conventional methods, have only limited value in biological areas. Large scale synthesis methods that are able to produce high quality, mono-dispersed iron oxide nanoparticles using low cost and environment friendly chemicals are highly desirable. Following synthesis, appropriate surface functionalization is necessary to direct the disp

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5

Острога, Руслан Олексійович, Руслан Алексеевич Острога, Ruslan Oleksiiovych Ostroha, Микола Петрович Юхименко, Николай Петрович Юхименко та Mykola Petrovych Yukhymenko. "Особливості процесу капсулювання мінеральних добрив органічною оболонкою". Thesis, Сумський державний університет, 2014. http://essuir.sumdu.edu.ua/handle/123456789/40184.

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Капсулювання дисперсних матеріалів у стані псевдозрідження є поширеним фізичним методом нанесення захисних оболонок. Нанесена на поверхню частинок оболонка створює додатковий опір масоперенесенню в процесі розчинення добрив. Як результат цього, непродуктивні втрати елементів живлення зменшуються [1].

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6

Brien, Joshua V. "DEVELOPMENT OF CEMENTITIOUS MATERIALS FOR ADHESION TYPE APPLICATIONS COMPRISING CALCIUM SULFOALUMINATE (CSA) CEMENT AND LATEX POLYMER." UKnowledge, 2014. http://uknowledge.uky.edu/ce_etds/19.

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The objective of this research was to develop high performing polymer modified calcium sulfoaluminate (CSA) cement materials for use in applications requiring superior adhesion characteristics. Little information is available describing interactions of CSA cement containing minor phase tri-calcium aluminate (C3A) with commonly used admixtures. Given the scarcity of information, a basic approach for developing cementitious materials was followed. The basic approach consisted of four tasks: cement design, admixture design, polymer design and testing developed materials. The iterative, time consu

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7

Forrer, Daniel. "Role and Eective Treatment of Dispersive Forces in Materials." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3427094.

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DFT and DFT-D calculations have been carried out on several chemical systems, ranging from molecules to crystalline polymers, bulk graphite, self-assembled phases of large molecules on metal surfaces and small molecules absorbed in porous organic-inorganic materials. Joining insights from calculations with experimental outcomes, the structural and electronic behavior of complex chemical systems have been described and explained, allowing a deeper understanding of the studied phenomena. Thanks to the implementation of a correction scheme to DFT, allowing the effective treatment of dispersion

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8

Janyani, Vijay. "Modelling of dispersive and nonlinear materials for optoelectronics using TLM." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417228.

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9

Peterson, Brian. "Energy Dispersive Spectroscopy Characterization of Solute Segregation in Ti-6Al-4V." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1293718338.

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10

Yang, Liguo. "Incorporation of dispersive materials in the envelope finite element (EVFE) method." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26817.

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In this thesis computationally efficient methods of including materials with Lorentz-type dispersion in the envelope finite-element time-domain (EVFE) method are developed and presented. A new perfectly matched layer (PML) mesh truncation scheme, which allows the PML to be applied in Lorentz-type dispersive material has also been derived. These new formulations have been implemented and applied to specific examples, and the approach validated through comparison with results obtained using alternative methods. In particular, it has been demonstrated through the examples that the method develope

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11

Jespersson, Niklas, and Torbjörn Sandberg. "Evaluation of different non-metallic inclusions in steel chips by using electrolytic extraction : Evaluation of a methodology for electrolytic extraction and scanning electron microscopy - energy dispersive spectroscopy (SEM-EDS) analysis." Thesis, KTH, Materialvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-298419.

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Analysing non-metallic inclusions (NMI) by conventional microscopy is prone to errors. Better imaging can be achieved by using electrolytic extraction (EE) to effectively dissolve the metal matrix, freeing the inclusions so that they can be collected on a filter. This method of studying NMI was tested on a 157C steel chip, with EE taking place three times on the same surface with increasing levels of charge applied. The relationship between charge and extracted layer depth was examined, so as to facilitate the targeting of NMI from specific depths. A selection of the extracted incl

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12

Lyons, Robert Joseph 1963. "Determining distributed source waveforms in casual, lossy, dispersive, plane-wave (CLDP) materials." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47722.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998.<br>Includes bibliographical references (p. 284-291).<br>This thesis presents and employs novel mathematics for the inversion of linear, first-kind Fredholm integral equations (IEs) which have a time t dependent response signal, a space z dependent source waveform, and a kernel with time dependence (at each z) corresponding to the impulse response of a thickness z slab of causal, lossy, dispersive, homogeneous material through which planar disturbances propagate according to the w

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13

Momeni, Babak. "Design and Implementation of Dispersive Photonic Nanostructures." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16186.

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Photonic crystals (PCs), consisting of a periodic pattern of variations in the material properties, are one of the platforms proposed as synthetic optical materials to meet the need for optical materials with desired properties. Recently, applications based on dispersive properties of the PCs have been proposed in which PCs are envisioned as optical materials with controllable dispersive properties. Unlike the conventional use of PCs to achieve localization, in these new applications propagation inside the photonic crystal is studied, and their dispersive properties are utilized. Among these

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14

Lu, Ling. "Characterisation and application of left-handed meta-materials using the dispersive finite-difference time-domain method." Thesis, Queen Mary, University of London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.436108.

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15

Demers, Hendrix. "Two facets of the x-ray microanalysis at low voltage: the secondary fluorescence x-rays emission and the microcalorimeter energy-dispersive spectrometer." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21993.

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The best spatial resolution, for a microanalysis with a scanning electron microscope (SEM), is achieved by using a low voltage electron beam. But the x-ray microanalysis was developed for high electron beam energy (greater than 10 keV). Also, the specimen will often contain light and medium elements and the analyst will have to use a mixture of K, L, and sometime M x-ray peaks for the x-ray microanalysis. With a mixture of family lines, it will be common to have secondary fluorescence x-rays emission by K-L and L-K interactions. The accuracy of the fluorescence correction models presently us

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16

Cook, Emily Jane. "Analysis of energy dispersive x-ray diffraction profiles for material identification, imaging and system control." Thesis, University College London (University of London), 2008. http://discovery.ucl.ac.uk/1446057/.

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This thesis presents the analysis of low angle X-ray scatter measurements taken with an energy dispersive system for substance identification, imaging and system control. Diffraction measurements were made on illicit drugs, which have pseudo- crystalline structures and thus produce diffraction patterns comprising a se ries of sharp peaks. Though the diffraction profiles of each drug are visually characteristic, automated detection systems require a substance identification algorithm, and multivariate analysis was selected as suitable. The software was trained with measured diffraction data fro

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17

Palma, Joseph John. "X-ray Diffraction Studies of Amorphous Materials." Diss., Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/231213.

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Physics<br>Ph.D.<br>This thesis presents a study on two types of X-ray diffraction methodologies applied to the characterization of amorphous materials. The purpose of this study was to assess the feasibility of measuring the diffractive spectrum of amorphous materials by Energy-Dispersive X-ray Diffraction (EDXRD) utilizing Cadmium Zinc Telluride detectors. The total scattering intensity (coherent plus incoherent scatter) spectra precisely measured by high-energy Wide-Angle X-ray Scattering (WAXS) were compared to the EDXRD spectra to determine the level of agreement between the two technique

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18

Widehammar, Svante. "A Method for Dispersive Split Hopkinson Pressure Bar Analysis Applied to High Strain Rate Testing of Spruce Wood." Doctoral thesis, Uppsala University, Department of Materials Science, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2872.

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<p><b>En metod för dispersiv analys av försök med delad hopkinsonstång tillämpad på provning av granved vid hög töjningshastighet</b></p><p>Syftet var att etablera en metod för att studera sambandet mellan spänning och töjning för granved vid hög töjningshastighet. Detta åstadkoms genom att anpassa och något vidareutveckla tekniken med delad hopkinsonstång ("Split Hopkinson Pressure Bar", SHPB).</p><p>Vanligtvis har hopkinsonstavar cirkulärt tvärsnitt och en diameter som är mycket mindre än de verksamma våglängderna. Under sådana förhållanden är vågutbredningen i stängerna approximativt ickedi

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19

Ess, J. W. "Characterization of dispersive and distributive mixing in a co-rotating twin-screw compounding extruder." Thesis, Brunel University, 1989. http://bura.brunel.ac.uk/handle/2438/5239.

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A new design of closely intermeshing co-rotating twin-screw compounding extruder, developed at Brunel University, has been utilized in the development of quantitative techniques for characterization of dispersive and distributive mixing in thermoplastics materials prepared by extrusion compounding. Image analysis procedures were used to quantify mixing of polypropylene composites containing calcium carbonate filler using reflected light microscopy on polished surfaces, and transmitted light microscopy of microtomed pigmented sections. Stereological statistics have been applied to raw sample da

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20

Ditto, Jeffrey. "Characterization of the Local Structure and Composition of Low Dimensional Heterostructures and Thin Films." Thesis, University of Oregon, 2016. http://hdl.handle.net/1794/20434.

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The observation of graphene’s extraordinary electrical properties has stirred great interest in two dimensional (2D) materials. The rapid pace of discovery for low dimensional materials with exciting properties continue with graphene allotropes, multiple polymorphs of borophene, germanene, and many others. The future of 2D materials goes beyond synthesis and characterization of free standing materials and on to the construction of heterostructures or sophisticated multilayer devices. Knowledge about the resulting local structure and composition of such systems will be key to understanding and

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21

Pinto, Clarice Maia Soares de Alcântara 1986. "Metallographic, gas and energy dispersive x-ray analyses of osteosynthesis plates and screws and dental implants removed from patients with clinical indication = Análise metalográfica, de gases e espectrometria por energia dispersiva de raios-x de placas e parafusos para osteossíntese e de implantes dentários removidos de pacientes com indicação clínica." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287888.

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Orientador: Márcio de Moraes<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-24T07:46:17Z (GMT). No. of bitstreams: 1 Pinto_ClariceMaiaSoaresdeAlcantara_M.pdf: 1620980 bytes, checksum: 1e0ec8457d9b0d64bf078cf763f07f37 (MD5) Previous issue date: 2013<br>Resumo: O objetivo do presente trabalho foi avaliar a microestrutura e a composição química dos implantes dentários, placas e parafusos para osteossíntese removidos de pacientes em casos com indicação clínica. No trabalho 1, foram realizadas análises m

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22

Edelvik, Fredrik. "Hybrid Solvers for the Maxwell Equations in Time-Domain." Doctoral thesis, Uppsala universitet, Avdelningen för teknisk databehandling, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-2156.

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The most commonly used method for the time-domain Maxwell equations is the Finite-Difference Time-Domain method (FDTD). This is an explicit, second-order accurate method, which is used on a staggered Cartesian grid. The main drawback with the FDTD method is its inability to accurately model curved objects and small geometrical features. This is due to the Cartesian grid, which leads to a staircase approximation of the geometry and small details are not resolved at all. This thesis presents different ways to circumvent this drawback, but still take advantage of the benefits of the FDTD method.

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23

Sampaio, Felipe Cavalcanti. "Microanálise de superfície e caracterização química de cimentos endodônticos." Universidade Federal de Goiás, 2013. http://repositorio.bc.ufg.br/tede/handle/tede/8569.

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Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2018-06-12T11:22:07Z No. of bitstreams: 2 Dissertação - Felipe Cavalcanti Sampaio - 2013.pdf: 1683727 bytes, checksum: 6cab873178ad2e097fe434f4aa8fca34 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-06-12T12:21:36Z (GMT) No. of bitstreams: 2 Dissertação - Felipe Cavalcanti Sampaio - 2013.pdf: 1683727 bytes, checksum: 6cab873178ad2e097fe434f4aa8fca34 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>

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24

Leek, Darrell Stewart. "A study of the effects of chloride and sulphate on the hydration of portland cement and the corrosion of carbon steel reinforcement using electron-optical techniques and energy dispersive X-ray analysis." Thesis, Queen Mary, University of London, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265400.

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25

Long, Zeyu. "Introduction of the Debye media to the filtered finite-difference time-domain method with complex-frequency-shifted perfectly matched layer absorbing boundary conditions." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/introduction-of-the-debye-media-to-the-filtered-finitedifference-timedomain-method-with-complexfrequencyshifted-perfectly-matched-layer-absorbing-boundary-conditions(441271dc-d4ea-4664-82e6-90bf93f5c2b7).html.

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The finite-difference time-domain (FDTD) method is one of most widely used computational electromagnetics (CEM) methods to solve the Maxwell's equations for modern engineering problems. In biomedical applications, like the microwave imaging for early disease detection and treatment, the human tissues are considered as lossy and dispersive materials. The most popular model to describe the material properties of human body is the Debye model. In order to simulate the computational domain as an open region for biomedical applications, the complex-frequency-shifted perfectly matched layers (CFS-PM

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26

Alexandrina, Eduardo Carlos. "Caracterização e composição química do material particulado grosso (MP10) no centro da cidade de São Carlos (SP)." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/7241.

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Submitted by Bruna Rodrigues (bruna92rodrigues@yahoo.com.br) on 2016-09-15T20:31:27Z No. of bitstreams: 1 DissECA.pdf: 4704364 bytes, checksum: 1909457a146bdb29a74ad65130ca2bd9 (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-09-16T19:58:59Z (GMT) No. of bitstreams: 1 DissECA.pdf: 4704364 bytes, checksum: 1909457a146bdb29a74ad65130ca2bd9 (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-09-16T19:59:07Z (GMT) No. of bitstreams: 1 DissECA.pdf: 4704364 bytes, checksum: 1909457a146bdb29a74ad65130ca2bd9 (MD5)<br>Made a

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27

Way, Austin J. "Fabrication of a-Si and a-InGaN Photovoltaics by Plasma Sputtering." Ohio University Honors Tutorial College / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1398270155.

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28

SILVA, NETO Oscar Gomes da. "Extração e avaliação das propriedades físicas, quimicas e biológicas do gel de aloe vera para aplicação em ecografia." Universidade Federal de Campina Grande, 2018. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1028.

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Submitted by Emanuel Varela Cardoso (emanuel.varela@ufcg.edu.br) on 2018-06-21T23:28:14Z No. of bitstreams: 1 OSCAR GOMES DA SILVA NETO – DISSERTAÇÃO (UAEMa) 2015.pdf: 1645990 bytes, checksum: e448fc8b851a203983ccd784d8234090 (MD5)<br>Made available in DSpace on 2018-06-21T23:28:14Z (GMT). No. of bitstreams: 1 OSCAR GOMES DA SILVA NETO – DISSERTAÇÃO (UAEMa) 2015.pdf: 1645990 bytes, checksum: e448fc8b851a203983ccd784d8234090 (MD5) Previous issue date: 2018-06-21<br>A ecografia é um dos métodos de diagnóstico por imagem mais versátil e difundido na atualidade, de aplicação relativamente simp

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29

Das, Suma Rani. "Investigation of Design and Operating Parameters in Partially-Filled Rubber Mixing Simulations." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1479151141596147.

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30

Viquerat, Jonathan. "Simulation de la propagation d'ondes électromagnétiques en nano-optique par une méthode Galerkine discontinue d'ordre élevé." Thesis, Nice, 2015. http://www.theses.fr/2015NICE4109/document.

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L’objectif de cette thèse est de développer une méthode Galerkine discontinue d’ordre élevé capable de prendre en considération des simulations réalistes liées à la nanophotonique. Au cours des dernières décennies, l’évolution des techniques de lithographie a permis la création de structure géométriques de tailles nanométriques, révélant ainsi une large gamme de phénomènes nouveaux nés de l’interaction lumière-matière à ces échelles. Ces effets apparaissent généralement pour des objets de taille égale ou (très) inférieure à la longueur d’onde du champ incident. Ce travail repose sur le dévelop

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31

Ozaslan, Mehtap, Wei Liu, Maarten Nachtegaal, et al. "Homogeneity and Elemental Distribution in Self-Assembled Bimetallic Pd-Pt Aerogels prepared by a spontaneous one-step gelation process." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2017. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-210970.

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Multi-metallic aerogels have recently emerged as a novel and promising class of unsupported electrocatalyst materials due to their high catalytic activity and improved durability for various electrochemical reactions. Aerogels can be prepared by a spontaneous one-step gelation process, where the chemical co-reduction of metal precursors and the prompt formation of the nanochain-consisting hydrogels, as a preliminary stage for the preparation of aerogels take place. However, detailed knowledge about the homogeneity and chemical distribution of these three-dimensional Pd-Pt aerogels at the nano-

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32

Lepinay, Kevin. "Développement et applications de la tomographie chimique par spectroscopie EDX." Thesis, Lyon, INSA, 2013. http://www.theses.fr/2013ISAL0124/document.

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Cette thèse porte sur l’évaluation des techniques pour la tomographie chimique par STEM EDX : mise au point des procédures expérimentales, traitement des données, reconstruction des volumes, analyse de la qualité des résultats obtenus et évaluation de la complexité globale. Les performances très limitées de l’analyse STEM EDX font que peu d’études, jusqu’à aujourd’hui, se sont portées sur cette technique. Cependant, les avancées très notables procurées par les nouveaux détecteurs ‘SDD’ ainsi que les sources électroniques X-FEG haute brillance, rendant l’analyse STEM EDX 2D très rapide, ont rel

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Massoni, Paulo Rogério. "Determinação da concentração de elementos químicos potencialmente tóxicos em aerossóis presentes no interior de uma pequena indústria de fundição de metais, utilizando amostrador temporal e a técnica de fluorescência de raios X." Universidade de São Paulo, 2009. http://www.teses.usp.br/teses/disponiveis/64/64134/tde-30092009-144607/.

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Este trabalho foi desenvolvido objetivando a determinação e a avaliação dos perfis temporais da concentração de alguns elementos químicos potencialmente tóxicos presentes no material particulado em suspensão (MPS) no interior de uma pequena indústria de fundição de metais bronze, ferro e alumínio que, em concentrações elevadas, podem acarretar sérios riscos à saúde do trabalhador. Para isso foi utilizado um amostrador temporal de MPS, que coleta amostras de aerossóis em intervalo de tempo pré-programados, separando-os por tamanho: (a) fração fina ou respirável (partículas com diâmetro aerodi

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Kaplenko, Oleksii. "Studium elektrodových materiálů pro Li-Ion akumulátory pomocí elektronové mikroskopie." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377024.

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The aim of this work is to describe the influence of temperature on the structure and chemical composition of electrode materials for Li-ion accumulators. Theoretical part of this thesis contains described terminology and general issues of batteries and their division. Every kind of battery is provided with a closer description of a specific battery type. A separate chapter is dedicated to lithium cells, mainly Li-ion batteries. Considering various composition of Li-ion batteries, the next subchapters deeply analyzes the most used cathode (with an emphasis on the LiFePO4, LiMn1/3Ni1/3Co1/3O2)

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Lejonklo, Caroline. "Friction and wear study of lean powder metallurgy steel in a lubricated sliding contact." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-390557.

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A fairly new technology used to produce metallic components is powder metallurgy (PM). Among the advantages with this technique are decreased cost of production for complex-shaped parts, new alloys are made possible, reduced end processing, less material loss, and vibrational damping effects. The downside is the number of pores created which can alter the tribological properties of the material. The focus of this report is to investigate how lean PM steel behaves under tribological contacts. Friction and wear will be investigated using a pin-on-disc setup to mimic the sliding part of a gear t

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Vídeňský, Ondřej. "Analýza bateriových hmot metodami EDS." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399522.

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This master thesis deals with analysis of battery mass using x-ray spectral microanalysis. For the measurement two scanning electron microscopes equipped with energy dispersive x-ray spectroscopes were used. Appropriate examples were prepaired by standard method. Then elemental analysis was performed with changing conditions of measurement. Two programs were used for spectrums evaluation and in the end the size of errors was observed for every conditions.

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Gobé, Alexis. "Méthodes Galerkin discontinues pour la simulation de problèmes multiéchelles en nanophotonique et applications au piégeage de la lumière dans des cellules solaires." Thesis, Université Côte d'Azur, 2020. http://www.theses.fr/2020COAZ4011.

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L’objectif de cette thèse est l’étude numérique du piégeage de la lumière dans des cellules solaires nanostructurées. Le changement climatique est devenu une problématique majeure nécessitant une transition énergétique à court terme. Dans ce contexte, l'énergie solaire semble être une source énergétique idéale. Cette ressource est à la fois scalable à l’échelle planétaire et écologique. Afin de maximiser sa pénétration, des travaux visant à augmenter la quantité de lumière absorbée et à réduire les coûts liés à la conception des cellules sont nécessaires. Le piégeage de la lumière est une stra

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Ali, Esam M. A., Howell G. M. Edwards, and R. Cox. "Forensic and security applications of a long-wavelength dispersive Raman system." 2014. http://hdl.handle.net/10454/9304.

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No<br>A novel dispersive system operating at 1064-nm excitation and coupled with transfer electron InGaAs photocathode and electron bombardment CCD technology has been evaluated for the analysis of drugs of abuse and explosives. By employing near-IR excitation at 1064-nm excitation wavelength has resulted in a significant damping of the fluorescence emission compared to 785-nm wavelength excitation. Spectra of street samples of drugs of abuse and plastic explosives, which usually fluoresce with 785-nm excitation, are readily obtained in situ within seconds through plastic packaging and glass c

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Albertini, Valerio Rossi, and Ruggero CAMINITI. "Applicazione della diffrazione a dispersione di energia allo studio della cinetica di transizione di fase in campioni polimerici : tesi di dottorato di ricerca in scienza dei materiali." Doctoral thesis, 1996. http://hdl.handle.net/11573/407238.

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Hajjaj, Maher Saeed 1980. "Evaluation Of Mechanical Properties of Provisional Fixed Partial Denture PMMA Material Containing Alumina Nanofibers." Thesis, 2012. http://hdl.handle.net/1805/2804.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Provisional restorative treatment is an essential part of fixed prosthodontics. Incorporation of adequately constructed provisional restorations will enhance the success rate of definitive restorations. Repairing or replacing failed provisional restorations is a concern for both clinicians and patients. The objective of this investigation was to study the effects of alumina nanofibers reinforcement on the mechanical properties of commercially available provisional fixed partial denture PMMA material. The hypothesis was that th

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Silva, Sara Margarida Jorge da. "Caracterização Material e Temporal dos Túmulos da Rainha Santa Isabel e de sua Neta, Infanta D. Isabel." Master's thesis, 2019. http://hdl.handle.net/10316/88038.

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Dissertação de Mestrado em Química Forense apresentada à Faculdade de Ciências e Tecnologia<br>Com esta dissertação, pretendeu-se analisar o historial/material dos túmulos daRainha Santa Isabel e de sua neta, tendo em conta a cronologia bibliográfica.Este estudo incidiu, em particular, na análise da estratigrafia de amostras recolhidas,nomeadamente da tampa do túmulo da Rainha Santa (TRS) e túmulo da neta da RainhaSanta (TNRS). Posteriormente, foram também analisadas amostras de outras peças paraservir como meio de comparação com as faces laterais respetivas.Os resultados obtidos permitem form

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(8741097), Ritwik Bandyopadhyay. "ENSURING FATIGUE PERFORMANCE VIA LOCATION-SPECIFIC LIFING IN AEROSPACE COMPONENTS MADE OF TITANIUM ALLOYS AND NICKEL-BASE SUPERALLOYS." Thesis, 2020.

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<div>In this thesis, the role of location-specific microstructural features in the fatigue performance of the safety-critical aerospace components made of Nickel (Ni)-base superalloys and linear friction welded (LFW) Titanium (Ti) alloys has been studied using crystal plasticity finite element (CPFE) simulations, energy dispersive X-ray diffraction (EDD), backscatter electron (BSE) images and digital image correlation (DIC).</div><div><br></div><div>In order to develop a microstructure-sensitive fatigue life prediction framework, first, it is essential to build trust in the quantitative predic

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CINGOLANI, Sofia. "IL TEATRO ROMANO DI POLLENTIA-URBS SALVIA." Doctoral thesis, 2018. http://hdl.handle.net/11393/251615.

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Il presente lavoro nasce con l’obiettivo primario dello studio organico del teatro romano della città di Pollentia-Urbs Salvia. Sebbene infatti sulla città e sui suoi principali monumenti esista un’ampia letteratura e rilevanti contributi recenti, ancora sostanzialmente inedito sin dalle prime indagini scientifiche condottevi a partire dalla metà del secolo scorso, rimaneva proprio l’edificio teatrale. Questo, quale monumento chiave nell’ambito dell’urbanistica della città tardo-repubblicana e augustea ed è oggetto infatti, nel corso degli anni, di brevi cenni e di contributi parziali ma mai e

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