3d Printing
Mostrando 25-36 de 41 artigos, teses e dissertações.
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25. A Comparative Study of Cartesian and Delta 3D Printers on Producing PLA Parts
The additive manufacturing processes emerged at the end of the last century and became popular by low-cost 3D printers. The most used printers work on a cartesian configuration, but recently were launched delta machines. These 3D printers use a more complex control system due to their trajectories generation but may present some advantages over the cartesian
Mat. Res.. Publicado em: 05/02/2018
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26. How 3D printing technologies can contribute into an iterative design process? Case study to hit a drum for Disabled Children
Abstract In the Assistive Technology area and design for disability, users must be taken into account during the design process. Multidisciplinary design team is constituted and an adapted design methodology used. In this design case study, this team has to develop an electromechanical drumstick dedicated to percussion instruments. Objective is to allow Disa
Prod.. Publicado em: 26/10/2017
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27. Impact of personalized three-dimensional (3D) printed pelvicalyceal system models on patient information in percutaneous nephrolithotripsy surgery: a pilot study
ABSTRACT Objective To investigate the impact of personalized three dimensional (3D) printed pelvicalyceal system models on patient information before percutaneous nephrolithotripsy surgery. Material and Methods Patients with unilateral complex renal stones with indicatation of percutaneous nephrolithotripsy surgery were selected. Usable data of patients
Int. braz j urol.. Publicado em: 2017-06
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28. Manufacture of custom-made cranial implants from DICOM® images using 3D printing, CAD/CAM technology and incremental sheet forming
INTRODUCTION: This work aims to pre-operatively manufacture custom-made low-cost implants and physical models (‘biomodels’) of fractured skulls. The pre-DOI: operative manufacturing of biomodels and implants allows physicians to study and plan surgery with a greater possibility of achieving the expected result. Customization contributes to both the esthe
Rev. Bras. Eng. Bioméd.. Publicado em: 2014-09
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29. Estudo de técnicas conceituais de recapeamento de quadril de cães / Study of conceptual techniques for dogs hip resurfacing
The study conceptually describes a surgical model for dog hip resurfacing technique. Hip arthroplasty was developed to restore joint mobility and relieve of human patients pain. In animals, especially dogs, total arthroplasty is a surgical procedure commonly used to correct traumatic, degenerative and inflammatory hip diseases and alleviate pain. The resurfa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2011
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30. Prototipagem rápida de pilhas a combustível de óxido sólido
Tecnologias de Prototipagem Rápida (Rapid Prototyping, RP) permitem a fabricação automática de peças com geometria complicada a partir de dados de Projeto Auxiliado por Computador (Computer Aided Design, CAD). A peça tridimensional é construída por consolidação de pó em camadas (processo "aditivo" ou "generativo"). Por isso, estas técnicas estão
Matéria (Rio de Janeiro). Publicado em: 2009
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31. Tratamento anaeróbio de efluentes de máquina de papel por biorreator convencional e biorreator de membranas / Anaerobic treatment of paper machine effluents by conventional bioreactor and membrane bioreactor
Fresh water use in paper mills varies according to the type of paper produced, but it can be as high as 100 m3 per ton of paper. In order to reduce water use in paper mills, the reclamation of whitewater is an attractive option. However, it is not always possible to completely recover the whitewater in a closed-cycle manner due to the poor quality of this st
Publicado em: 2007
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32. "Manufatura rápida - avaliação das tecnologias de impressão 3D e FDM na fabricação de moldes rápidos" / Rapid Manufactory Comparative evaluations of 3D printing system against FDM system for Rapid Tooling
Este trabalho avaliou a aplicação das tecnologias de prototipagem rápida por Impressão 3D e FDM (Fused Deposition Modeling) na produção de moldes rápidos. Esta avaliação foi feita com base nas qualidades das peças obtidas por vazamento nos moldes produzidos, bem como nas limitações encontradas em suas utilizações. Foram estabelecidas as princip
Publicado em: 2006
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33. Rapid prototyping use in medicine: application to neurosurgery / Uso de prototipagem Rapida em medicina : aplicação a neurocirurgia
Rapid Prototyping enable the production of physical bolt models, products or tools from existing ones. There are several prototyping techniques available like Sthereolithography Selective Laser Sintering and 3D Printing, each of them forming objects by material decomposition layer by layer. The major application of this technique is in industry, with the cre
Publicado em: 2005
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34. Exposure to toluene increases the urinary excretion of D-glucaric acid.
Workers at a printing plant exposed to low concentrations of toluene (43-401 mg/m3, median 155 mg/m3) had increased urinary D-glucaric acid (3.55-5.12 mmol/mol creatinine) excretion at the end of the shift compared with controls (2.45-3.35 mmol/mol creatinine). No increase was found after the summer holiday (1.92-2.89 mmol/mol creatinine) but excretion had i
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35. Differential binding of a S. cerevisiae RNA polymerase III transcription factor to two promoter segments of a tRNA gene.
A Saccharomyces cerevisiae protein fraction which binds specifically to the internal promoter regions of genes that are transcribed by RNA polymerase III is shown to function as a transcription factor. We postulate that the stable DNA binding of the factor confers stability on polymerase III transcription complexes. Analysis of the binding by DNase 'foot-pri
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36. Survival and function of hepatocytes on a novel three-dimensional synthetic biodegradable polymer scaffold with an intrinsic network of channels.
OBJECTIVE: To evaluate the survival and function of hepatocytes (HCs) on a novel three-dimensional (3D) synthetic biodegradable polymer scaffold with an intrinsic network of interconnected channels under continuous flow conditions. SUMMARY BACKGROUND DATA: The authors' laboratory has investigated HC transplantation using 3D biodegradable polymers as scaffold