3d Scanning
Mostrando 13-24 de 319 artigos, teses e dissertações.
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13. Ferramentas de digitalização 3D faça-você-mesmo na preservação do patrimônio cultural
Resumo: Com o intuito de tornar a digitalização 3D mais acessível em museus, este estudo buscou por soluções apropriadas a um cenário de investimento reduzido. Baseando-se no faça-você-mesmo, a fotogrametria e a digitalização 3D por triangulação a laser foram testadas num ensaio com três objetos do Museu Júlio de Castilhos, Porto Alegre, Brasil
Interações (Campo Grande). Publicado em: 08/08/2019
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14. CHARACTERIZATION OF SILICON-ALUMINUM-ZIRCONIUM OXIDE OBTAINED BY THE SOL-GEL PROCESS
A new silicon-aluminum-zirconium ternary oxide (SiO2/Al2O3/ZrO2) was prepared by the sol-gel method followed by one-step washing with absolute ethanol or two-step washing with absolute ethanol followed by ultra-pure water. Both ternary oxides presented high surface area (over 340 m2 g-1). The binding energy values for Zr3d and Al2p levels showed the insertio
Quím. Nova. Publicado em: 18/07/2019
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15. THE MULTIROLE OF MODIFIED NATURAL GUMS FOR MULTICOMPONENT POLYMERS: AS COUPLING AGENTS FOR POLYMERS REINFORCED WITH CELLULOSIC FIBERS OR COMPATIBILIZERS FOR BIODEGRADABLE POLYMER BLENDS
In this work, the capability to use pine rosin as a biodegradable coupling agent/compatibilizer is studied. To formulate composites, post-consumer polypropylene and discarded agave fibers (as reinforcing agent) are coupled with pine rosin (in pure or maleated form). Besides, poly(lactic acid) (PLA) with poly(butylene adipate-co-terephthalate) (PBAT) are comp
Quím. Nova. Publicado em: 02/05/2019
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16. The effect of panretinal photocoagulation on confocal laser scanning ophthalmoscopy and stereo photographic parameters of optic disk topography in patients with diabetic retinopathy
RESUMO Objetivo: Determinar o efeito da panfotocoagulação retiniana nos parâmetros topográficos do disco óptico em pacientes não glaucomatosos com retinopatia diabética proliferativa. Métodos: Este é um estudo observacional prospectivo e unicêntrico. Trinta e oito olhos de 26 pacientes diabéticos foram submetidos à panfotocoagulação retiniana
Arq. Bras. Oftalmol.. Publicado em: 29/04/2019
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17. Failure Probability, Stress Distribution and Fracture Analysis of Experimental Screw for Micro Conical Abutment
Resumo O objetivo deste estudo foi avaliar a probabilidade de falha de dois tipos de parafusos para pilar protético após a compressão e analisar a distribuição da tensão com o método dos elementos finitos. Sessenta (60) restaurações unitárias foram montadas em implantes de titânio (e-fix, A.S. Technology - Titanium Fix). Os grupos foram divididos
Braz. Dent. J.. Publicado em: 04/04/2019
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18. New Composites CP@AC Based on Lanthanide Succinates
Composites derived from coordination polymers have been gathering great attention due to their singular properties and applications, especially catalysis and adsorption. In this work, seven new composites based on activated carbon (AC) and lanthanide-succinates (LnSuc; Ln = Pr, Nd, Sm, Gd, Dy, Er and Tm, and Suc = succinate) 3D-coordination polymers were obt
J. Braz. Chem. Soc.. Publicado em: 2019-04
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19. Accuracy of 3D digital modeling of dental arches
RESUMO Objetivo: o objetivo do presente estudo foi verificar e comparar a precisão de modelos digitais de uma arcada dentária completa obtidos utilizando-se dois tipos de scanners e três metodologias de digitalização. Métodos: um modelo de resina feito com impressão 3D foi digitalizado em um scanner de referência (Zfx Evolution - Zimmer Biomet, Pa
Dental Press J. Orthod.. Publicado em: 2019-02
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20. Fabricación de espumas de cobre por pulvimetalurgia
ABSTRACT A method for the fabrication of copper foams by powder metallurgy, employing carbamide beads as space holders, is presented. These are removed by water dissolution before sintering the compact. The method allows for a precise control of the cell characteristics (size, shape and distribution) within an interconnected porosity. The use of metal powder
Matéria (Rio J.). Publicado em: 19/07/2018
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21. Clinical Application of Atlantoaxial Pedicle Screw Placement Assisted by a Modified 3D-Printed Navigation Template
OBJECTIVES: To investigate the primary clinical value of atlantoaxial pedicle screw placement assisted by a modified 3D-printed navigation template. METHODS: We retrospectively analyzed the cases of 17 patients treated from June 2015 to September 2016 with atlantoaxial pedicle screw placement assisted by a modified 3D-printed navigation template. All proce
Clinics. Publicado em: 19/07/2018
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22. Synthesis and characterization of lithiated nanostructures
ABSTRACT Regardless of the simple accumulation of ions in the crystal insertion sites, nanomaterials offer a new storage mechanism of lithium ions (Li+), these storage mechanisms are formed in the interfaces and inside of the nanopores. Such kinds of storage mechanisms have no effect on the structure of the electrode material. Consequently, the charge-discha
Matéria (Rio J.). Publicado em: 19/07/2018
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23. Síntesis y caracterización de “tanatos” de lantano como inhibidores de la corrosión
ABSTRACT Tannins are polyphenols synthesized by plants. They are found in Quebracho (Schinopsis Balansae) wood, Tara (Caesalpinia spinosa) fruits, etc. They have been incorporated in the coating industry as "antifouling" agents and as corrosion inhibitors in acidic solutions. Moreover, lanthanum solutions have a great inhibitory effect over SAE 1010 steel co
Matéria (Rio J.). Publicado em: 19/07/2018
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24. Microscopic Studies on Erythrocytes of Channa punctata Exposed to Commercial Grade Lindane
ABSTRACT Light and scanning electron microscopic studies of erythrocytes of Channa punctata exposed to two sublethal doses of lindane over a period of 21 days revealed myriads of anomalies. High frequency of micronucleus appeared progressively in the erythrocyte, ranging from 3.8-7.5%, when monitored weekly for 21 d at 0.25 g/L and 1.0-3.0% at 0.025 g/L lind
Braz. arch. biol. technol.. Publicado em: 14/06/2018