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Performance of Compact Radial Basis Functions in the Direct Interpolation Boundary Element Method for Solving Potential Problems

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Computer Modeling in Engineering & Sciences 2017年第3期113卷 367-387页

作者： C.F.Loeffle L.Zamprogno W.J.Mansur a.bulcao DEM/PPGEM Federal University of Espírito Santo PGSU Petrobras PEC/LAMEMO/COPPE/Federal University of Rio de Janeiro CENPES Petrobras

This study evaluates the effectiveness of a new technique that transforms doma in integrals into boundary integrals that is applicable to the boundary element *** mulations were conducted in which two-dimensional surfaces were approximated by inter polation using radial basis functions with full and compact *** involving Poisson’s equation are presented using the boundary element method and the proposed te chnique with compact radial basis *** advantages and the disadvantages are e xamined through *** effects of internal poles,the boundary mesh refinemen t and the value for the support of the radial basis functions on performance are assessed.

关键词： Interpolations radial basis functions boundary element method Poisson’s equation

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Nanotoxicology and Exposure in the Occupational Setting

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Occupational Diseases and Environmental Medicine 2015年第3期3卷 35-48页

作者： Tiago Severo Peixe Elizabeth de Souza Nascimento Katie Larson Schofield Arline S.A.Arcuri Rachel P.bulcao Departamento de Patologia Análises Clínicas e ToxicológicasUniversidade Estadual de Londrina(UEL)LondrinaBrasil Departamento de Análises Clínicas e Toxicológicas Faculdade de Ciencias Farmaceuticas(FCF)Universidade de Sao Paulo(USP)Sao PauloBrasil The Work Comp Experts(SFM) MinneapolisUSA Coordenacao de Higiene Ocupacional FundacentroMinisterio do Trabalho e EmpregoSao PauloBrasil Faculdade Educacional Araucária(FACEAR) AraucáriaBrasil

Nanotechnology refers to the ability to control the composition of molecules and atoms within the range of 1.00 - 100 nm. At this scale, many materials exhibit novel properties when compared with their micro or macro-sized equivalents, including, for example, chemical reactivity, strength, mobility and solubility. Nanoparticles are prime candidates for toxicity because they possess a much greater surface to volume ratio (i.e. the surface area compared to the volume) than larger particles of that same material;they can have biopersistance and higher oxidant capacity, penetrate epithelium and reach interstitial pulmonary region. In an industrial setting, workers may present the main exposure risk potential among humans, and they may be involved in the entire product life cycle. There are needs to protect public and environmental health and safety. Currently, no standards or regulations exist that apply or refer specifically to nanomaterials impacts.

关键词： Nanotoxicology Occupational Workers Nanoparticles Exposure

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