Non Linearity
Mostrando 1-12 de 175 artigos, teses e dissertações.
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1. Bioactive metabolites in of Ginkgo biloba leaves: variations by seasonal, meteorological and soil
Resumo Ginkgo biloba é um fitoterápico tradicional da medicina chinesa que contém vários componentes que contribuem para suas notáveis bioatividades. Variações sazonais, meteorológicos e de plantio do solo sobre os teores fitoquímicos em folhas de G. biloba, devido aos efeitos do crescimento meteorológico e parâmetros do solo, foram investigadas n
Braz. J. Biol.. Publicado em: 02/12/2019
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2. Chanter model: nonlinear modeling of the fruit growth of cocoa
RESUMO: O crescimento de plantas e animais pode ser descrito por meio de uma curva. Essa curva é dada pela equação de um modelo não linear, como o modelo Logístico e o modelo Gompertz. O objetivo deste trabalho foi ajustar o modelo Chanter, assim como o Logístico e Gompertz, utilizando um conjunto de dados do fruto do cacaueiro do clone SIAL - 105, cu
Cienc. Rural. Publicado em: 21/10/2019
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3. Physical and geometric non-linear analysis using the finite difference method for one-dimensional consolidation problem
Abstract This article presents a numerical model based on the finite difference method for the physical and geometric non-linear analysis of a one-dimensional consolidation problem regarding a saturated, homogeneous and isotropic soil layer with low permeability and high compressibility. The problem is formulated by adopting the void ratio as the primary var
REM, Int. Eng. J.. Publicado em: 2019-06
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4. Determination of Short Chain Fatty Acids in Mice Feces by Capillary Electrophoresis
Short-chain fatty acids (SCFA) are compounds produced during fermentation of gut microbiota. Acetic, propionic and butyric acids are the most important SCFA produced from non-digestible foods. We developed and validated a rapid and low-cost capillary electrophoretic (CE) method for determination of acetic, propionic and butyric acids in mice feces (100 mg of
J. Braz. Chem. Soc.. Publicado em: 23/05/2019
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5. Não linearidade entre câmbio e preços no Brasil e implicações para uma estratégia de desenvolvimento econômico
RESUMO O objetivo deste artigo é realizar uma análise da política monetária no Brasil a partir de um modelo de Vetores Autorregressivos com Cadeias de Markov (MS-VAR), na busca de evidências da não linearidade da relação entre câmbio e preços no Brasil. A análise demonstrou que, em períodos de apreciação cambial, tanto pelo lado da demanda quan
Brazil. J. Polit. Econ.. Publicado em: 02/05/2019
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6. Multi-objective optimization of a parallel manipulator for the design of a prosthetic arm using genetic algorithms
Abstract This paper presents a synthesis of a spherical parallel manipulator for a shoulder of a seven-degrees-of-freedom prosthetic human arm using a multi-objective optimization. Three design objectives are considered, namely the workspace, the dexterity, and the actuators torques. The parallel manipulator is modelled considering 13 design parameters in a
Lat. Am. j. solids struct.. Publicado em: 14/05/2018
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7. Knowledge-based digital soil mapping for predicting soil properties in two representative watersheds
ABSTRACT: The estimation of soil physical and chemical properties at non-sampled areas is valuable information for land management, sustainability and water yield. This work aimed to model and map soil physical-chemical properties by means of knowledge-based digital soil mapping approach as a study case in two watersheds representative of different physiogra
Sci. agric. (Piracicaba, Braz.). Publicado em: 2018-04
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8. Measurement uncertainty of plane-strain fracture toughness KIC testing by the Monte Carlo Method
Abstract The reliable determination of materials' mechanical properties is a fundamental factor for their application in engineering, and the estimation of the measurement uncertainty in testing laboratories has a direct impact on the interpretation of the results. Recent literature demonstrates that one of the most widely used methodologies for uncertainty
REM, Int. Eng. J.. Publicado em: 2018-04
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9. Development of a low cost force platform for biomechanical parameters analysis
AbstractIntroduction: The maintenance of balance and body orientation during standing is essential to perform different activities. One of the devices used to measure balance them is the force platform. This device measures the ground reaction force (GRF) and displacement of the center of pressure (COP), both biomechanical parameters involved in human motion
Res. Biomed. Eng.. Publicado em: 12/09/2017
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10. Development and validation of alternative methods by non-aqueous acid-base titration and derivative ultraviolet spectrophotometry for quantification of sildenafil in raw material and tablets
Sildenafil citrate (SILC) is a potent phosphodiesterase-5 inhibitor used for erectile dysfunction and pulmonary hypertension. This study shows two simple, fast and alternative analytical methods for SILC determination by non-aqueous titration and by derivative ultraviolet spectrophotometry (DUS) in active pharmaceutical ingredient and/or dosage forms. The qu
Braz. J. Pharm. Sci.. Publicado em: 20/04/2017
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11. Inked Careers: Tattooing Professional Paths
Abstract The concept of career has an interdisciplinary and historical constitution, which includes persons, groups, organizations and society. Given that, we aim to deepen the interactionist notion of career from the understanding of a deviant path, supported by a theory and a method appropriated to the cited call for interdisciplinary approaches. Dilemmas
BAR, Braz. Adm. Rev.. Publicado em: 13/02/2017
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12. Determination of the Main Influencing Factors on Road Fatalities Using an Integrated Neuro-Fuzzy Algorithm
Abstract This paper proposed an integrated algorithm of neuro-fuzzy techniques to examine the complex impact of socio-technical influencing factors on road fatalities. The proposed algorithm could handle complexity, non-linearity and fuzziness in the modeling environment due to its mechanism. The Neuro-fuzzy algorithm for determination of the potential influ
Lat. Am. j. solids struct.. Publicado em: 2017-01