Results 61 to 70 of about 30,789 (260)

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

O padrão Bitcoin aplicado ao Brasil

open access: yesMises, 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

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

CONSIDERAÇÕES SOBRE OS TAPIRAPÉ, A PARTIR DE HERBERT BALDUS

open access: yesClio 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

open access: yesEconomia 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   +2 more
doaj   +1 more source

Grain Refinement During Severe Plastic Deformation and Similitude of Subgrain Formation: A Molecular Dynamics Study

open access: yesAdvanced Engineering Materials, EarlyView.
Molecular dynamics is used to investigate structure refinement during severe plastic deformation. The results show similitude with experimental data. Molecular dynamics simulations of severe plastic deformation of monocrystalline and polycrystalline samples by multiaxial compression of aluminum are carried out.
Roberto B. Figueiredo
wiley   +1 more source

Microscopic Origin of Temperature‐Dependent Anisotropic Heat Transport in Ultrawide‐Bandgap Rutile GeO2

open access: yesAdvanced Functional Materials, EarlyView.
Rutile GeO2${\rm GeO}_{2}$ exhibits orientation‐dependent heat transport with temperature‐dependent anisotropy, showing higher cross‐plane thermal conductivity along [001] than along the equivalent in‐plane [100] and [010] directions. Temperature‐dependent TDTR measurements and first‐principles phonon calculations identify the microscopic phonon ...
Pouria Emtenani   +9 more
wiley   +1 more source

Gardiquimod Nanoemulsion Targets Cutaneous Leishmaniasis Lesions Reducing Systemic Toxicity and Parasite Burden

open access: yesAdvanced Healthcare Materials, EarlyView.
Nanoemulsion delivery of a TLR7 agonist enhances safety and promotes colocalization with Leishmania‐infected macrophages in skin lesions, enabling a ∼2‐log reduction in parasite burden. However, tissue‐level constraints and TLR‐driven regulatory feedback generate a mixed immune response that limits complete parasite clearance.
Carmen Palomino‐Cano   +11 more
wiley   +1 more source

Central do Brasil: “Esporte” de Risco

open access: yesdObra[s] – revista da Associação Brasileira de Estudos de Pesquisas em Moda, 2019
O artigo trata das práticas desenvolvidas pelos passageiros da Central do Brasil que viajavam pendurados nas portas, nas janelas e no teto das composições, focalizadas entre os anos 1950 e 1980. Inicialmente utilizada pela necessidade de enfrentar a superlotação e não perder a hora no emprego, a prática pingente foi adquirindo ao longo do tempo ...
openaire   +2 more sources

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