Visualization 3d
Mostrando 13-24 de 132 artigos, teses e dissertações.
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13. Reliability and reproducibility of three-dimensional cephalometric landmarks using CBCT: a systematic review
Objective : The aim of this study was to review the reliability and reproducibility of 3D-CBCT (cone beam computed tomography) cephalometric landmark identification. Methods : Electronic databases (Pubmed, Scopus, Web of Science) were searched for papers published from 1998 to October 2014. Specific strategies were developed for each database, with the guid
J. Appl. Oral Sci.. Publicado em: 2015-04
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14. Bioinformatics analysis of biomarkers and transcriptional factor motifs in Down syndrome
In this study, biomarkers and transcriptional factor motifs were identified in order to investigate the etiology and phenotypic severity of Down syndrome. GSE 1281, GSE 1611, and GSE 5390 were downloaded from the gene expression ominibus (GEO). A robust multiarray analysis (RMA) algorithm was applied to detect differentially expressed genes (DEGs). In order
Braz J Med Biol Res. Publicado em: 08/08/2014
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15. Rapid prototyping of three-dimensional biomodels as an adjuvant in the surgical planning for intracranial aneurysms
PURPOSE: To fabricate a three-dimensional biomodels of intracranial aneurysms, using rapid prototyping technology, to facilitate optimal anatomical visualization of aneurysms prior to and during surgery. METHODS: Four intracranial aneurysms cases were selected for this study. Using CT angiography images, the rapid prototyping process was completed using a Po
Acta Cir. Bras.. Publicado em: 2013-11
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16. Characterization and three-dimensional reconstruction of pores of self-reducing pellets done by EAF dust
This work focused on the characterization physical and microstructural of the self-reducing pellet made of Electric Arc Furnace (EAF) dust using different low cost techniques. The serial sectioning technique was used to evaluate detailed measurements of pore connections, tortuositiy of pores and porosity distribution. The chemical analysis using Inductively
Mat. Res.. Publicado em: 23/08/2013
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17. Assessment of open source software for CBCT in detecting additional mental foramina
The purpose of this study was to evaluate which post-processing imaging protocol would be better to analyze the additional mental foramen (AMF) in preoperative planning with cone-beam computed tomography (CBCT) exams, and to test reproducibility of measurements, using open source software (OsiriX). The software was used to detect the cases of AMF from among
Braz. oral res.. Publicado em: 01/03/2013
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18. Determination of the Representative Elementary Volume for the study of sandstones and siltstones by X-Ray microtomography
X-Ray computerized microtomography (µ-CT) besides providing two-dimensional images (2-D) of the transversal sections of the sample, the biggest attraction of the methodology is the rendering of three-dimensional images (3-D), enabling a more real analysis of the porous structure of the rock. However, the reconstruction, visualization and analysis of such 3-
Materials Research. Publicado em: 31/07/2012
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19. Three-dimensional characterization of pores in Ti-6Al-4V alloy
The direct three-dimensional characterization of opaque materials through serial sectioning makes possible to visualize and better quantify a material microstructure, using classical metallographic techniques coupled with computer-aided reconstruction. Titanium alloys are used as biomaterials for bone implants because of its excellent mechanical properties,
Materials Research. Publicado em: 01/04/2011
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20. Hardware-assisted visibility sorting for unstructured volume rendering
Harvesting the power of modern graphics hardware to solve the complex problem of real-time rendering of large unstructured meshes is a major research goal in the volume visualization community. While, for regular grids, texture-based techniques are well-suited for current GPUs, the steps necessary for rendering unstructured meshes are not so easily mapped to
Publicado em: 2011
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21. Caracterização e modelagem de redes biológicas geográficas / Characterization and modelling of biological networks
Nesta tese apresentamos uma metodologia de mapeamento capaz de gerar representações em termos de grafos para sistemas biológicos de conectividade complexa. Tais sistemas são inicialmente armazenados na forma de imagens digitais e em seguida submetidos a um pré-processamento com objetivo de padronizar as imagens. As imagens pré-processadas são então u
Publicado em: 2011
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22. High prevalence of the GSTM3*A/B polymorphism in sub-Sarahan African populations
A 3-bp insertion/deletion polymorphism in intron 6 of GSTM3 (rs1799735, GSTM3*A/*B) affects the activity of the phase 2 xenobiotic metabolizing enzyme GSTM3 and has been associated with increased cancer risk. The GSTM3*B allele is rare or absent in Southeast Asians, occurs in 5-20% of Europeans but was detected in 80% of Bantu from South Africa. The wide gen
Brazilian Journal of Medical and Biological Research. Publicado em: 2010-07
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23. Comparison between two tomographic sections in the diagnosis of external root resorption
OBJECTIVES: To assess the accuracy of coronal and sagittal CT sections to detect cavities simulating root resorption. MATERIAL AND METHODS: 60 mandibular incisors were embedded in plaster bases, and cavities with 0.6, 1.2 or 1.8 mm in diameter and 0.3, 0.6 or 0.9 mm in depth (small, medium and large cavities) were drilled on the buccal surfaces with high-spe
Journal of Applied Oral Science. Publicado em: 2010-06
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24. Development of a discrete event simulation Kernel for manufacturing systems with 3D visualization / Desenvolvimento de um núcleo de simulador de eventos discretos para sistemas de manufatura com visualização 3D
The need of knowledge and control of the manufacturing environment is continuously growing. Over the last century and the beginning of this, several tools and procedures were designed in order meet those necessities. Among them, simulation is a decision support tool widely used, mainly in the manufacturing industry. Virtual reality can be used in those simul
Publicado em: 2010