Log in

Relevant bibliographies by topics / Surface topography-roughness / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Surface topography-roughness.

Dissertations / Theses on the topic 'Surface topography-roughness'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 30 dissertations / theses for your research on the topic 'Surface topography-roughness.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Sharma, Priyanka. "Investigations of Titan's Topography and Surface Roughness." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/241978.

Full text

Abstract:

Saturn's moon, Titan is a geomorphologically active planetary object, and its surface is influenced by multiple processes like impact cratering, fluvial and aeolian erosion, lacustrine processes, tectonics, cryovolcanism and mantling. Disentangling the processes that compete to shape Titan's landscape is difficult in the absence of global topography data. In this thesis, I utilize techniques in topographic statistics, fractal theory, study of terrestrial analogs and landscape evolution modeling to characterize Titan's topography and surface roughness and investigate the relative roles of surfa

APA, Harvard, Vancouver, ISO, and other styles

2

Mitik-Dineva, Natasa. "Bacterial attachment to micro- and nano- structured surfaces." Swinburne Research Bank, 2009. http://hdl.handle.net/1959.3/48547.

Full text

Abstract:

The ongoing interest in bacterial interactions with various surfaces, followed by attachment and subsequent biofilm formation, has been driven by the importance of bacterial activities in number of medical, industrial and technological applications. However, bacterial adhesion to surfaces has not been completely understood due to the complexity of parameters involved. The study presented herein investigates the attachment pattern of nine medically and environmentally significant bacteria belonging to different taxonomic lineages: Firmicutes - Bacillus, Gammaproteobacteria, Alphaproteobacteria

APA, Harvard, Vancouver, ISO, and other styles

3

Loboda, V. B., Yu O. Shkurdoda, A. I. Saltykova, and V. M. Kolomiets. "The Temperatures’ Influence of Substrate and Annealing on a Surface Relief and Diffusion in Multilayer Film Systems." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35308.

Full text

Abstract:

The topography’s change of surface films Fe/S and Cu/Fe/S was investigated and the diffusive profiles’ analysis of three-layer films Co/Cu/Fe/S was performed after theirs annealing. The influence of mean-square roughness and interdiffusion on a size of giant magnetoresistance (GMR) effect was established. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35308

APA, Harvard, Vancouver, ISO, and other styles

4

Werner, Oskar. "Computer Modelling of the Influence of Surface Topography on Water Repellency and a Study on Hydrophobic Paper Surfaces with Partly Controlled Roughness." Thesis, Linköping University, The Department of Physics, Chemistry and Biology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-2614.

Full text

Abstract:

<p>A computer model based on minimization of the free energy, capable to predict contact angles and spreading transitions between Wenzel and Cassie mode for drops placed on surfaces with different topography were implemented in matlab. Simulations were compared with experiments documented in the literature. These showed that reported transitions between Cassie and Wenzel mode can be explained by minimization of the free energy. In this report, a study on the possibility of constructing water repellent paper surfaces with a combination of treatment with octadecyltrichlorosilane and topography c

APA, Harvard, Vancouver, ISO, and other styles

5

Pavlík, František. "Studium vlivu parametru elipticity na rozložení tloušťky mazacího filmu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2011. http://www.nusl.cz/ntk/nusl-229941.

Full text

Abstract:

Diploma thesis deals with elastohydrodynamic lubrication of point contacts, which surfaces are influenced by topography and velocity vector of one rubbing surface is misaligned. Author summarizes knowledge of previously published research articles, which fundamentally enrich current state of knowledge. Diploma thesis contains experimental measurement results of the film thickness and the way of lubrication film formation in elliptical contact for different ellipticity parameters, kinds of rubbing surfaces and angles of the velocity vector. New findings have helped to better understand the beha

APA, Harvard, Vancouver, ISO, and other styles

6

Palodhi, Kanik. "Absolute surface topography measurement with polarisation sensitive coherence scanning interferometry." Thesis, Loughborough University, 2013. https://dspace.lboro.ac.uk/2134/14411.

Full text

Abstract:

Traditionally, surface topography measurement was in the domain of quality control of engineering parts. With the advancement of manufacturing technology and affordable computational costs, different types of surfaces are produced with varied shapes and surface textures. These pose significant measurement problems, therefore, surface topography research is gaining momentum to achieve a better control of the surface. Coherence scanning interferometry (CSI) is one of the most common techniques used for measurement of surface topography. It is preferred over tactile and other non-contact techniqu

APA, Harvard, Vancouver, ISO, and other styles

7

Hu, Chen. "Surface Optimization of the Silicon Templates for Monolithic Photonics Integration." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37226.

Full text

Abstract:

Silicon photonics is emerging as a potential field to achieve optical interconnects towards the realization of ultra high bandwidth. The indirect band-gap property of silicon still remains as a big challenge to incorporate silicon photonic active device, for example, silicon-based laser. In the Laboratory of Semiconductor Materials at KTH, a monolithic integration platform based on nano-epitaxial lateral overgrowth (nano-ELOG) technique has been proposed to integrate III-V semiconductor materials with silicon for light source application. The integration process involves uneven surface morphol

APA, Harvard, Vancouver, ISO, and other styles

8

Lindberg, Eskil. "Vehicle Disc Brake Roughness Noise : Experimental Study of the Interior Noise andVibro-Acoustic Modelling of Suspension Systems." Licentiate thesis, KTH, MWL Strukturakustik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-39554.

Full text

Abstract:

Prediction of vehicle disc brake roughness noise is a non-trivial challenge. In fact, neither the source mechanisms, nor the transfer paths are so far well understood. Traditionally, disc brake noise problems are studied as part of the friction-induced noise field, where the source is considered to be a more or less local phenomenon related to the brake disc and brake pad. However, for the roughness noise of interest here this viewpoint is not adequate when attempting to solve the interior noise problem since the transfer of vibro-energy from the brake into the vehicle body is a crucial aspect

APA, Harvard, Vancouver, ISO, and other styles

9

McGinnis, Nathaniel L. "Topography and Land-Cover Effects on Tornado Intensity using Rapid-Scan Mobile Radar Observations and Geographic Information Systems." Ohio University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1471459517.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Hroděj, Daniel. "Pokročilé metody vyhodnocování topografie povrchu." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2020. http://www.nusl.cz/ntk/nusl-417589.

Full text

Abstract:

This paper deals with the analysis of data obtained from the surface of aluminum alloy 7475-T7351 after face milling with a tool inclination of 1°. The theoretical part explains the basic principles of measuring the topography of the surface and instruments that are able to provide relevant data directly from the scanned part. The following part contains the methods of evaluating the information, especially using various types of parameters acquired from ČSN EN ISO standards. The practical part focuses on the data obtained from the sample surface using the Alicona IF-G5. This information deter

APA, Harvard, Vancouver, ISO, and other styles

11

Wilson, Cameron. "Mediation of Osteoblast Responses to Titanium Roughness by Adsorbed Proteins." Queensland University of Technology, 2005. http://eprints.qut.edu.au/16096/.

Full text

Abstract:

Stable fixation of implants such as artificial teeth depends on the direct apposition of bone to the implanted material. While endosseous implants were traditionally allowed to "osseointegrate" over several months without carrying load, clinical and experimental data show that prostheses with roughened surfaces allow successful integration when subject to earlier loading and more challenging implant sites. However, to design implant surfaces for an optimal biological response requires an understanding of the mechanism by which roughened surfaces promote osseointegration. Research into this me

APA, Harvard, Vancouver, ISO, and other styles

12

Wilson, Cameron John. "Mediation of Osteoblast Responses to Titanium Roughness by Adsorbed Proteins." Thesis, Queensland University of Technology, 2005. https://eprints.qut.edu.au/16096/1/Cameron_Wilson_Thesis.pdf.

Full text

Abstract:

Stable fixation of implants such as artificial teeth depends on the direct apposition of bone to the implanted material. While endosseous implants were traditionally allowed to "osseointegrate" over several months without carrying load, clinical and experimental data show that prostheses with roughened surfaces allow successful integration when subject to earlier loading and more challenging implant sites. However, to design implant surfaces for an optimal biological response requires an understanding of the mechanism by which roughened surfaces promote osseointegration. Research into this me

APA, Harvard, Vancouver, ISO, and other styles

13

Ahmad, Ola. "Stochastic representation and analysis of rough surface topography by random fields and integral geometry - Application to the UHMWPE cup involved in total hip arthroplasty." Phd thesis, Ecole Nationale Supérieure des Mines de Saint-Etienne, 2013. http://tel.archives-ouvertes.fr/tel-00905519.

Full text

Abstract:

Surface topography is, generally, composed of many length scales starting from its physical geometry, to its microscopic or atomic scales known by roughness. The spatial and geometrical evolution of the roughness topography of engineering surfaces avail comprehensive understanding, and interpretation of many physical and engineering problems such as friction, and wear mechanisms during the mechanical contact between adjoined surfaces. Obviously, the topography of rough surfaces is of random nature. It is composed of irregular hills/valleys being spatially correlated. The relation between their

APA, Harvard, Vancouver, ISO, and other styles

14

Logins, Andris. "High speed milling technological regimes, process condition and technological equipment condition influence on surface quality parameters of difficult to cut materials." Doctoral thesis, Universitat Politècnica de València, 2021. http://hdl.handle.net/10251/164122.

Full text

Abstract:

[ES] La calidad superficial en las piezas mecanizadas depende del acabado superficial, resultado de las marcas dejadas por la herramienta durante el proceso de corte. Las aproximaciones teóricas tradicionales indican que estas marcas están relacionadas con los parámetros de corte (velocidad de corte, avance, profundidad de corte...), el tipo de máquina, el material de la pieza, la geometría de la herramienta, etc. Pero no todos los tipos de mecanizado y selección de materiales pueden dar un resultado ambiguo. Hoy en día, de manera progresiva, se están utilizando las técnicas de fresado de Alta

APA, Harvard, Vancouver, ISO, and other styles

15

Belaud, Vanessa. "Structuration de surfaces au moyen d'un traitement laser femtoseconde : applications à la fonctionnalisation de surface du polypropylène en vue de sa métallisation." Thesis, Ecully, Ecole centrale de Lyon, 2014. http://www.theses.fr/2014ECDL0003/document.

Full text

Abstract:

Ce présent travail de thèse porte sur l’étude du potentiel d’un traitement de surface par laser femtoseconde comme étape de substitution aux traitements réalisés actuellement lors de la métallisation de polymère. Pour cela, l’étude des modifications chimiques et morphologiques induites par traitement laser femtoseconde ainsi que leurs influences respectives sur les propriétés d’adhérences et de mouillabilités de la surface polypropylène sont présentées. Une revue bibliographique met en évidence la faisabilité d’une modification contrôlée de la surface du polypropylène après traitement laser fe

APA, Harvard, Vancouver, ISO, and other styles

16

Cherguy, Oussama. "Vers une modélisation de la topographie des surfaces générées par le procédé de toilage." Electronic Thesis or Diss., Ecully, Ecole centrale de Lyon, 2023. http://www.theses.fr/2023ECDL0030.

Full text

Abstract:

Le toilage appartient à la famille des procédés de finition – superfinition abrasives. Il permet d’obtenir des surfaces ayant une très bonne rugosité. En outre, il s’agit d’une très bonne alternative pour la production à grande échelle, car c’est un procédé très efficace et stable. Malheureusement, le toilage reste un procédé difficile à optimiser et nécessite de nombreux essais avant de trouver les conditions optimales. La modélisation numérique du procédé de toilage est donc une excellente alternative aux optimisations empiriques qui prennent beaucoup de temps. Ce travail propose des méthode

APA, Harvard, Vancouver, ISO, and other styles

17

Gläser, Philipp [Verfasser], Jürgen [Akademischer Betreuer] Oberst, Gregory [Akademischer Betreuer] Neumann, and Harald [Akademischer Betreuer] Hiesinger. "Evaluation of topography, slopes, illumination and surface roughness of landing sites near the lunar south pole using laser altimetry from the lunar reconnaissance orbiter / Philipp Gläser. Gutachter: Jürgen Oberst ; Gregory Neumann ; Harald Hiesinger. Betreuer: Jürgen Oberst." Berlin : Technische Universität Berlin, 2014. http://d-nb.info/1067388044/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Gläser, Philipp Andreas [Verfasser], Jürgen [Akademischer Betreuer] Oberst, Gregory [Akademischer Betreuer] Neumann, and Harald [Akademischer Betreuer] Hiesinger. "Evaluation of topography, slopes, illumination and surface roughness of landing sites near the lunar south pole using laser altimetry from the lunar reconnaissance orbiter / Philipp Gläser. Gutachter: Jürgen Oberst ; Gregory Neumann ; Harald Hiesinger. Betreuer: Jürgen Oberst." Berlin : Technische Universität Berlin, 2014. http://d-nb.info/1067388044/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Sekeres, Thiago de Souza. "Inter-relação entre parâmetros de rugosidade 2D/3D e a estampabilidade de chapas de aço de baixo carbono laminadas a frio para a indústria automotiva." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-16112015-161539/.

Full text

Abstract:

O processo de estampagem é influenciado por diferentes variáveis, tais como, propriedades mecânicas e rugosidade da chapa, lubrificação do blank, coeficiente de atrito entre o blank e a ferramenta, parâmetros da prensa (força relativamente constante e velocidade), bem como variações nas ferramentas de conformação (deformação elástica). Este trabalho se dedica a investigação da influência do atrito entre a ferramenta e o blank. Em particular, será investigado o desenvolvimento de padrões artificiais de rugosidade de chapas metálicas (textura de superfície). O foco do presente trabalho é o estud

APA, Harvard, Vancouver, ISO, and other styles

20

Luc, Emilie. "Mécanisme d'initiation du collage lors du laminage à chaud des aciers inoxydables ferritiques stabilisés." Thesis, Valenciennes, 2013. http://www.theses.fr/2013VALE0041/document.

Full text

Abstract:

Le laminage à chaud de l’acier inoxydable est une étape du procédé de fabrication agissant significativement sur la qualité de surface des produits. Les nuances ferritiques stabilisées sont largement utilisées dans les applications automobiles et de décoration mais sont concernées par le phénomène de collage à chaud. Ces nuances, ayant des résistances élevées en corrosion sèche et en fluage, sont riches en éléments tels que le Cr, le Nb ou le Ti, limitant aussi l’oxydation des brames lors du laminage. Or, l’oxydation maitrisée de la brame permet de protéger la surface du métal de tout contact

APA, Harvard, Vancouver, ISO, and other styles

21

Masiagutova, Elina. "Étude de la génération des topographies de surfaces latérales issues du procédé LPBF pour un alliage d’aluminium AlSi10Mg." Thesis, Lyon, 2022. http://www.theses.fr/2022LYSEE002.

Full text

Abstract:

Dans le cadre de ce travail, la génération des surfaces produites par le procédé de fusion laser sur lit de poudre LPBF a été étudiée. Le LPBF est un procédé de fabrication additive qui peut conduire à de nouvelles opportunités (fabrication de structures complexes avec canaux internes, structures lattices). Ce procédé attire donc une attention considérable en particulier dans l'industrie aéronautique. Une étude de l’influence des paramètres primaires du procédé LPBF sur la génération des surfaces a été réalisée. Au cours de cette étude, la relation entre la rugosité des surfaces supérieures et

APA, Harvard, Vancouver, ISO, and other styles

22

Nunes, Eduardo. "Inter-relationship of skin pass, 2D and 3D roughness parameters, stampability and paintability on cold rolled steel sheets for the automotive industry." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-24112014-151802/.

Full text

Abstract:

The aim of this research work is to study the inter-relationship, under controlled industrial conditions, among skin pass reductions, surface topography characterized by 2D and 3D roughness parameters, stampability and painted surface finish quality for automotive steel sheet stampings. Different surface textures obtained from cold rolling finishing have been evaluated in terms of paint appearance (rating and spectral curve) and tentatively related to roughness parameters (2D and 3D) obtained from the cold finished sheets. Some relevant tendencies have been established amongst these parameters

APA, Harvard, Vancouver, ISO, and other styles

23

Xie, Wa. "Surface Topography and Aesthetics of Recycled Cross-Linked Polyethylene Wire and Cable Coatings." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc799512/.

Full text

Abstract:

Our research focuses on re-using a waste a material, cross-linked polyethylene abbreviated XLPE, which is a widely used coating for wires. XLPE is strong and has excellent thermal properties due to its chemical structure - what leads to the significance of recycling this valuable polymer. Properties of XLPE include good resistance to heat, resistance to chemical corrosion, and high impact strength. A wire is usually composed of a metal core conductor and polymeric coating layers. One creates a new coating, including little pieces of recycled XLPE in the lower layer adjacent to the wire, and vi

APA, Harvard, Vancouver, ISO, and other styles

24

Hirrien, Bertrand. "Rugosité de surface et d'interface : méthodes de microscopie de force atomique et réflectivité de rayons-X rasants appliqués aux composants de la micro-électronique et de l'optronique." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0179.

Full text

Abstract:

Face a la diminution continue des dimensions des composants, la rugosite aux interfaces des systemes micro-electroniques et optroniques devient un facteur limitant. Il convient donc de savoir caracteriser la rugosite le plus completement possible, afin d'en quantifier et comprendre les effets. Ce travail de these montre l'interet, dans le cas d'une topographie rugueuse, de separer les caracteristiques de repartition horizontale de matiere, de ses caracteristiques verticales. L'etude mathematique et la programmation d'une methode basee sur le formalisme des densites spectrales de puissance (dsp

APA, Harvard, Vancouver, ISO, and other styles

25

Ås, Sigmund. "Fatigue Life Prediction of an Aluminium Alloy Automotive Component Using Finite Element Analysis of Surface Topography." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Engineering Science and Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-758.

Full text

Abstract:

<p>A 6082 aluminium alloy has been characterized with regard to the influence of surface roughness on fatigue strength.</p><p>Fatigue life testing of smooth specimens was used to establish reference curves for the material in extruded and forged T6 condition. The extruded material was found to have better fatigue strength than the forged material, although the cyclic stress-strain response was similar for both. The forged material was tested in T5, T6 and T7 tempers, showing no significant difference in fatigue strength.</p><p>Surface roughness was created by circumferential grinding of cylind

APA, Harvard, Vancouver, ISO, and other styles

26

Rosenburg, Margaret Anne. "Interpretation of Lunar Topography: Impact Cratering and Surface Roughness." Thesis, 2014. https://thesis.library.caltech.edu/8408/7/Rosenburg_Margaret_2014_Ch1.pdf.

Full text

Abstract:

This work seeks to understand past and present surface conditions on the Moon using two different but complementary approaches: topographic analysis using high-resolution elevation data from recent spacecraft missions and forward modeling of the dominant agent of lunar surface modification, impact cratering. The first investigation focuses on global surface roughness of the Moon, using a variety of statistical parameters to explore slopes at different scales and their relation to competing geological processes. We find that highlands topography behaves as a nearly self-similar fractal syste

APA, Harvard, Vancouver, ISO, and other styles

27

Edachery, Vimal. "Influence of Surface Topography and Roughness on Lubrication, Friction and Scuffing in High Hardness Steels." Thesis, 2021. https://etd.iisc.ac.in/handle/2005/5499.

Full text

Abstract:

In tribology engineering, friction control is a significant challenge. The interacting surfaces of mechanical components are typically designed for best efficiency during tribological operations and are primarily achieved through adequate lubrication. In these applications, breakage of the lubricant films between these contacting components can cause surface damage. In extreme-sliding interactions, this can lead to seizure and scuffing. Scuffing is a severe form of wear observed in lubricated sliding interactions. Hence, lubrication effectiveness becomes an important tribological factor that c

APA, Harvard, Vancouver, ISO, and other styles

28

Gupta, Rajeev Kumar. "Influence of surface topography on wear and debris morphology of polymers." Thesis, 2022. https://etd.iisc.ac.in/handle/2005/6093.

Full text

Abstract:

The artificial knee and hip joints comprise a polymer-metal tribological system where soft polymers slide against hard metallic surfaces. When a polymer slides on it, the micro hard asperities remove the polymers in the form of debris. Numerous investigations discovered that the shapes and sizes of polymer debris have a major impact on the functionality and life of the artificial knee and hip joints. The counter surface topography is one of the various parameters influencing debris morphology. Hence, researchers created various surface topographies on metallic surfaces and studied their influ

APA, Harvard, Vancouver, ISO, and other styles

29

Darafon, Abdalslam. "Measuring and Modeling of Grinding Wheel Topography." 2013. http://hdl.handle.net/10222/21678.

Full text

Abstract:

In this work, measurements and simulations were used to investigate the effects of grinding wheel topography on the geometric aspects of the grinding process. Since existing methods for measuring the grinding wheels were either not accurate enough or could only measure a small portion of a grinding wheel, a novel grinding wheel measurement system was developed. This system consists of a white light chromatic sensor, a custom designed positioning system and software. The resulting wheel scanning system was capable of measuring an entire grinding wheel with micron level accuracy. The system w

APA, Harvard, Vancouver, ISO, and other styles

30

Brygoła, Rafał. "Metody charakteryzacji profilu powierzchni soczewek kontaktowych z użyciem mikroskopii sił atomowych oraz optycznej mikroskopii konfokalnej." Doctoral thesis, 2021. https://depotuw.ceon.pl/handle/item/3886.

Full text

Abstract:

W rozprawie przedstawiono zagadnienie pomiaru i charakteryzacji topografii powierzchni miękkich soczewek kontaktowych metodami: mikroskopii sił atomowych (AFM) i mikroskopii konfokalnej. Głównymi celami pracy były: analiza parametrów statystycznych popularnych soczewek kontaktowych oraz opracowanie jednolitej procedury pomiarowej topografii powierzchni soczewek kontaktowych za pomocą mikroskopu AFM. W głównym eksperymencie zmierzono topografię powierzchni siedmiu soczewek silikonowo-hydrożelowych. Potwierdzono tezę, iż rodzaj materiału oraz zastosowane procedury obróbki powierzchni wpływają na

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!