Iterative Methods
Mostrando 1-12 de 134 artigos, teses e dissertações.
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1. Dynamic anisotropy and non-linear geostatistics supporting short term modelling of structurally complex gold mineralization
Abstract Non-linear geostatistical methods are known to deal appropriately with the geological and geometrical complexity of gold deposits. This article reports the results related to an investigation to improve the gold content estimate based on restricted ore modeling to honor the structural aspects that control the mineralization. The grade domains are de
REM, Int. Eng. J.. Publicado em: 2021-06
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2. Damped Jacobi Methods Based on Two Different Matrices for Signal Detection in Massive MIMO Uplink
Abstract For massive multiple-input multiple-output (m-MIMO) uplink, the performances of the linear minimum mean-square error (MMSE) detector are considered near optimal, and they occupy benchmark place for most linear iterative detectors. However, the MMSE algorithm is known by its load computational complexity due to the implication of large-scale matrix i
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2021-03
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3. Strengthening universal health: development of a nursing and midwifery education quality improvement toolkit
Objetivo: apresentar o desenvolvimento de um kit de ferramentas para melhoria da qualidade da educação em saúde universal e na atenção primária à saúde em escolas de enfermagem e obstetrícia na América Latina e no Caribe. Métodos: um grupo de especialistas realizou uma revisão sistemática da literatura, selecionou conteúdos-chave e desenvolve
Rev. Latino-Am. Enfermagem. Publicado em: 05/12/2019
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4. OUTLIER=GROSS ERROR? DO ONLY GROSS ERRORS CAUSE OUTLIERS IN GEODETIC NETWORKS? ADDRESSING THESE AND OTHER QUESTIONS
Abstract This article has theoretically discussed some points regarding outliers caused by errors in geodetic observations (see consideration made). Comments have also been made on the usual 3σ-rule to identify outliers and its common approachs in the simulation of outliers in geodetic networks. Three simulated experiments have been conducted to verify the
Bol. Ciênc. Geod.. Publicado em: 14/10/2019
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5. A New Hybrid Preconditioner for the Interior Point Method
RESUMO Este trabalho visa melhorar o cálculo da direção de busca no Método de Pontos Interiores primal-dual usando métodos iterativos precondicionados. Trata-se de uma abordagem híbrida que combina o precondicionador Fatoração Controlada de Cholesky e o precondicionador Separador. Esta abordagem tem mostrado bons resultados, entretanto, nesses préco
TEMA (São Carlos). Publicado em: 16/09/2019
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6. Estratégia de implementação para a prática avançada de enfermagem na Atenção Primária à Saúde no Chile
Resumo Objetivos: (i) Delinear os passos e progressos realizados pelo Chile para implementar a prática avançada do papel da enfermagem usando o Enfoque PEPPA (Participatory Evidence-based Patient-focused Process) como guia, (ii) demonstrar a eficácia da estrutura do PEPPA para a identificação de barreiras e guiar o processo de implementação, e (iii)
Acta paul. enferm.. Publicado em: 10/06/2019
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7. A Brazilian Portuguese cross-cultural adaptation of the modified JOA scale for myelopathy
OBJECTIVES: To develop a version of the modified Japanese Orthopaedic Association (mJOA) scale that had been translated into Portuguese and cross-culturally adapted for the Brazilian population. METHODS: The well-established process of forward-backward translation was employed along with cross-cultural adaptation. RESULTS: Three bilingual translators (Eng
Clinics. Publicado em: 2017-02
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8. Stress State at the Vertex of a Composite Wedge, One Side of Which Slides Without Friction Along a Rigid Surface
Abstract For studying the stress-strain state at singular points and their neighborhoods new concept is proposed. A singular point is identified with an elementary volume that has a characteristic size of the real body representative volume. This makes it possible to set and study the restrictions at that point. It is shown that problems with singular points
Lat. Am. j. solids struct.. Publicado em: 2017
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9. Thermal Distortion Analysis of Inflatable Antenna Structures Considering Inflation Gas
ABSTRACT This paper addresses the static distortion and stress analysis of inflatable antenna structures subjected to a thermal load, which is a very important type of load experienced by such structures during service in orbit. Non-linear finite element analysis methods for inflatable structures were formulized, and the thermal stress of thin films was cons
J. Aerosp. Technol. Manag.. Publicado em: 2016-12
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10. Time-Domain Three Dimensional BE-FE Method for Transient Response of Floating Structures Under Unsteady Loads
Abstract This paper presents a direct time-domain three dimensional (3D) numerical procedure to simulate the transient response of very large floating structures (VLFS) subjected to unsteady external loads as well as moving mass. The proposed procedure employs the Boundary Element and Finite Element methods (FEM-BEM). The floating structure and the surroundi
Lat. Am. j. solids struct.. Publicado em: 2016-07
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11. Missing value imputation in multi-environment trials: Reconsidering the Krzanowski method
Abstract We propose a new methodology for multiple imputation when faced with missing data in multi-environmental trials with genotype-by-environment interaction, based on the imputation system developed by Krzanowski that uses the singular value decomposition (SVD) of a matrix. Several different iterative variants are described; differential weights can als
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-06
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12. Numerical Simulation of the Wake Structure and Thrust/Lift Generation of a Pitching Airfoil at Low Reynolds Number Via an Immersed Boundary Method
ABSTRACT: In this study, an accurate computational algorithm in the context of immersed boundary methods is developed and used to analyze an incompressible flow around a pitching symmetric airfoil at Reynolds number (Re = 255). The boundary conditions are accurately implemented by an iterative procedure applied at each time step, and the pressure is also upd
J. Aerosp. Technol. Manag.. Publicado em: 2015-09