• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 127
  • 76
  • 6
  • 4
  • 4
  • 3
  • 2
  • 2
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 287
  • 128
  • 86
  • 85
  • 70
  • 51
  • 37
  • 29
  • 28
  • 28
  • 27
  • 26
  • 23
  • 22
  • 22
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Vergleichende Untersuchungen über die Biege- und Dauerschwingfestigkeit von resorbierbaren Polymeren zur Anwending in der Mund-, Kiefer- und Gesichtschirurgie

Derichs, Dieter, January 1987 (has links)
Thesis (doctoral)--Universität Köln, 1987. / Vita. Includes bibliographical references (p. 85-97).
12

On the bone tissue response to titanium implants

Sennerby, Lars. January 1991 (has links)
Thesis (doctoral)--University of Göteborg, 1991. / Extra t.p. with thesis statement inserted. Includes bibliographical references.
13

Avaliação por elementos finitos de tensões ocorridas em diferentes seções transversais do sistema de retenção de overdenture tipo barra-clipe com desajuste vertical : Evaluation by finite element analysis of stress at different cross-sections design of overdenture's bar framework with vertical misfit / Evaluation by finite element analysis of stress at different cross-sections design of overdenture's bar framework with vertical misfit

Nogueira, Moises da Costa Ferraz, 1989- 06 June 2014 (has links)
Orientadores: Rafael Leonardo Xediek Consani, Mateus Bertolini Fernandes dos Santos / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba / Made available in DSpace on 2018-08-24T21:15:14Z (GMT). No. of bitstreams: 1 Nogueira_MoisesdaCostaFerraz_M.pdf: 1749031 bytes, checksum: 8fa4481a045e127aabb629294129a5b0 (MD5) Previous issue date: 2014 / Resumo: O objetivo neste estudo foi avaliar por meio da análise por elemento finito 3-D, as tensões ocorridas em overdentures com sistemas de retenção barra-clipe, quando diferentes formas da seção transversal (circular, ovóide ou Hader) apresentam diferentes níveis de desajuste vertical (50, 100 e 200 µm) e são confeccionadas com diferentes ligas metálicas (Au tipo IV, Ag-Pd, Co-Cr e Ti cp). Modelos tridimensionais foram feitos utilizando software para modelagem 3-D (SolidWorks 2010) e importados para o software de simulação mecânica (ANSYS Workbench 11). Aperto simulado do parafuso foi realizado até obter assentamento adequado entre infraestrutura e plataforma protética. As análises foram realizadas com o objetivo de obter as tensões Máxima Principal e de von Mises (MPa). Os valores da tensão aumentaram com o aumento do desajuste vertical, assim como a barra Hader proporcionou os maiores valores. Barras circulares feitas com Au tipo IV causaram os menores valores na barra e no parafuso protético. Ligas resilientes mostraram melhores resultados que as rígidas, enquanto a maior complexidade da seção transversal da barra e o maior nível de desajuste vertical aumentaram a concentração das tensões na barra, parafuso protético e tecido ósseo cortical. Conclui-se que as tensões induzidas na barra, parafuso protético e tecido ósseo peri-implantar foram influenciadas pelo aumento do desajuste vertical, complexidade da seção transversal e liga da barra / Abstract: The objective of this study was to evaluate by 3-D finite element analysis tensions occurred in overdentures with bar-clip retention systems, when different cross-sectional geometries (circular, oval or Hader) have different levels of vertical misfit (50, 100 and 200 µm) and were maded from different metallic alloys (type IV Au , Ag-Pd , Co-Cr and Ti cp). Three-dimensional models were maded using 3-D modeling software (SolidWorks 2010) and imported into the software of mechanical simulation (ANSYS Workbench 11). A displacement simulating screw tightening was done until proper fitting of the prosthetic platform infrastructure. The analyzes were performed in order to obtain the Maximum Principal Stress and von Mises (MPa). The stress values increased proportionally with the level of vertical misfit and Hader bar showed the highest values. Circular bars made with Au type IV showed the lowest values on the bar and prosthetic screw. Resilient alloys performed better than hard, while the greater complexity of the cross section of the bar and the highest levels of vertical misfit increased stress concentration on the infrastructure of the bar, prosthetic screw and cortical bone tissue. The stress induced on the bar, prosthetic screw and peri-implant bone tissue were influenced by increased vertical misfit, complexity of cross section and different alloys of the bar / Mestrado / Protese Dental / Mestre em Clínica Odontológica
14

Studies of ion-plated coatings for biomedical applications

Ward, Liam Patrick January 1991 (has links)
No description available.
15

Platelet interactions with blood vessel wall and prosthetic surfaces : Haematological and biochemical investigations of platelet interactions with blood vessel wall and prosthetic surfaces including the effects of cyclo-oxygenase inhibitorson the

Latif, A. B. January 1988 (has links)
No description available.
16

Development of a model to study the interaction of Staphylococcus epidermidis with phagocytic cells on the surface of bone and prosthetic joint material

Robertson, Sheona Anne January 2000 (has links)
No description available.
17

Development of whole disc organ culture system and acellular disc scaffold for intervertebral disc engineering

Chan, Kit-ying, 陳潔瑩 January 2010 (has links)
published_or_final_version / Orthopaedics and Traumatology / Doctoral / Doctor of Philosophy
18

The hydrodynamics of tapered arterial prostheses

Black, Richard Anthony January 1989 (has links)
No description available.
19

Variable speed walking and running in physically active lower-limb amputees : gait biomechanics and prosthetic design influences

Buckley, John G. January 2000 (has links)
No description available.
20

Critical evaluation of predictive modelling of a cervical disc design /

De Jongh, Cornel January 2007 (has links)
Thesis (MScIng)--University of Stellenbosch, 2007. / Bibliography. Also available via the Internet.

Page generated in 0.0663 seconds