Results 61 to 70 of about 83,291 (305)

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

O padrão Bitcoin aplicado ao Brasil

Mises, 2019
O objetivo desse trabalho é fazer uma sugestão simplificada de mudança de política monetária e revisão da função do Banco Central no Brasil utilizando como pilar central um ativo digital desenvolvido com uma combinação única de tecnologias, o Bitcoin ...
Lucas Fiuza
doaj   +1 more source

Convenio de Pagos y Créditos Recíprocos : XII Reunión de Técnicos del SICAPALADI: Web Services: documento del Banco Central del Brasil /

, 2008
Banco Central del ...
Banco Central del Brasil
core  

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

CONSIDERAÇÕES SOBRE OS TAPIRAPÉ, A PARTIR DE HERBERT BALDUS

Clio Arqueológica, 2000
O trabalho de Charles Wagley, sobre a organização sovial dos Tapirapé do Brasil Central trata de um estudo correlato entre as observaçoes realizadas inicialmente por Herbert Baldus no ano de 1935, pelo autor em 1939, e posteriormente por Judith Shapiro ...
Juliana Lopes Elias
doaj  

Estimating risk aversion, Risk-Neutral and Real-World Densities using Brazilian Real currency options

Economia Aplicada, 2012
This paper uses the Liu et al. (2007) approach to estimate the optionimplied Risk-Neutral Densities (RND), real-world density (RWD), and relative risk aversion from the Brazilian Real/US Dollar exchange rate distribution. Our empirical application uses a
José Fajardo, José Renato Haas Ornelas, Aquiles Rocha de Farias   +2 more
doaj   +1 more source

Infâncias nas imagens de "Central do Brasil"

Instrumento: Revista de Estudo e Pesquisa em Educação, 2022
O presente texto faz parte da tese intitulada "Cinema e Infância: Arte & Vida", produção do Programa de Pós-Graduação em Educação da Universidade Federal de Juiz de Fora, defendida em 2019. Tendo a relação estabelecida entre a criança espectadora do cinema e a paisagem cinematográfica, o texto apresenta uma parte da pesquisa que tem como questão ...
openaire   +1 more source

Proposta de trabalho : proposta de revisão dos textos do Convênio e do Regulamento do CCRAladi por parte do Banco Central do Brasil

, 2013
Banco Central del ...
Banco Central del Brasil
core  

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source