Open Source
Mostrando 25-36 de 608 artigos, teses e dissertações.
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25. Automatized Separation of Fractions from Petroleum Based on Spectrophotometric Signal Derivative Using Open-Source Hardware for the Determination of Ni and V Linked to Porphyrins
An automated method based on open-source hardware was created for the separation of porphyrins fractions from crude oil, an essential step for the quantification of V and Ni as metalloporphyrins. Preparative liquid chromatography was implemented with a reverse phase gradient from MeOH to toluene. The system allows three solvents and fractions changes by usin
J. Braz. Chem. Soc.. Publicado em: 23/05/2019
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26. Superimposition of 3D maxillary digital models using open-source software
Resumo Historicamente, a avaliação ortodôntica da movimentação dentária, seja com finalidade de pesquisa, seja para monitoramento clínico, tem sido feita por meio de modelos de estudo em gesso e radiografias em duas dimensões (2D). Entretanto, com o desenvolvimento da Ortodontia digital, novas fronteiras para o diagnóstico, planejamento e avaliaçã
Dental Press J. Orthod.. Publicado em: 20/05/2019
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27. Expanding the limits of endoscopic intraorbital tumor resection using 3-dimensional reconstruction
Resumo Introdução: A cirurgia orbital endoscópica é um campo emergente e são necessárias novas ferramentas para auxiliar no planejamento cirúrgico e determinar os limites da ressecabilidade tumoral. Objetivo: Usar a reconstrução radiográfica tridimensional para definir o limite lateral teórico de ressecabilidade endoscópica de tumores orbitais
Braz. j. otorhinolaryngol.. Publicado em: 29/04/2019
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28. Water retention and penetration resistance equations for the least limiting water range
ABSTRACT: The least limiting water range is a soil physical quality indicator, which is useful to predict the optimum water range for plant growth in a given soil and to study the effects of soil use and management over this optimum water range by integrating the effects of available water, penetration resistance and air filled porosity. This study tested si
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-04
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29. Using Software R in research in occupational therapy
Resumo O presente artigo tem como objetivo fornecer subsídios para que pesquisadores em terapia ocupacional possam realizar procedimentos de estatística básica de maneira mais flexível e independente, a partir do sistema R, um software livre e gratuito, cuja popularidade vem aumentando consideravelmente no âmbito acadêmico. Apresentar-se-á, assim, o p
Cad. Bras. Ter. Ocup.. Publicado em: 2019-01
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30. Paleoenvironmental Characterization of a High-Mountain Environment in the Atlantic Forest in Southeastern Brazil
ABSTRACT: Records of changes in the phytosociological structure of vegetation can be observed more clearly in soils that have more significant accumulation of organic matter, like those occurring in high-mountain environments. The aim of this study was to characterize soils formed in high-mountain environments in the Itatiaia National Park (INP), state of Ri
Rev. Bras. Ciênc. Solo. Publicado em: 14/11/2018
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31. Improvement of Airfoils Aerodynamic Efficiency by Thermal Camber Phenomenon at Low Reynolds Number
ABSTRACT: In this research, viscous, laminar and steady flow around symmetric and non-symmetric airfoils is simulated at Low Reynolds Number (LRN). Navier-Stokes (N-S) equations are discretized by Finite Volume Method (FVM) and are solved by the SIMPLE algorithm in an open source software, namely OpenFOAM. The main objective of this paper is the introduction
J. Aerosp. Technol. Manag.. Publicado em: 01/11/2018
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32. Multi-objective optimization with Kriging surrogates using “moko”, an open source package
Abstract Many modern real-world designs rely on the optimization of multiple competing goals. For example, most components designed for the aerospace industry must meet some conflicting expectations. In such applications, low weight, low cost, high reliability, and easy manufacturability are desirable. In some cases, bounds for these requirements are not cle
Lat. Am. j. solids struct.. Publicado em: 22/10/2018
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33. Volumetric reconstruction and determination of minimum crosssectional area of the pharynx in patients with cleft lip and palate: comparison between two different softwares
Abstract Objective: The aim of this study was to assess the accuracy of volumetric reconstruction of the pharynx by comparing the volume and minimum crosssectional area (mCSA) determined with open-source applications (ITK-Snap, www.itksnap.org ; SlicerCMF) and commercial software (Dolphin3D, 11.8, Dolphin Imaging & Management Solutions, Chatsworth, CA, USA)
J. Appl. Oral Sci.. Publicado em: 04/10/2018
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34. Alternative class III distributed polysomnography system
Abstract Introduction Impairment of sleep quality directly increases the risk of heart attack, obesity, and stroke, among other conditions, which makes polysomnography (PSG) an important public health tool. However, the inherent problems with PSG render the correct diagnosis of sleep diseases a difficult task. As a novel alternative to the class II PSG sys
Res. Biomed. Eng.. Publicado em: 28/05/2018
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35. Characterization of iron ore pellets by multimodal microscopy and image analysis
Abstract A correlative approach employing optical microscopy and scanning electron microscopy is proposed for the quantification of phases and pores in iron ore pellets. Combining mosaic images covering the full cross-sections of pellets, obtained with both techniques, it is possible to improve the discrimination of pores, quartz and silicates. First, the im
REM, Int. Eng. J.. Publicado em: 2018-04
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36. Comparing the Performance of Ground Filtering Algorithms for Terrain Modeling in a Forest Environment Using Airborne LiDAR Data
ABSTRACT The aim of this study was to evaluate the performance of four ground filtering algorithms to generate digital terrain models (DTMs) from airborne light detection and ranging (LiDAR) data. The study area is a forest environment located in Washington state, USA with distinct classes of land use and land cover (e.g., shrubland, grassland, bare soil, an
Floresta Ambient.. Publicado em: 01/02/2018