Results 51 to 60 of about 309,899 (125)

Optical and Electrical Characterization of Er/Yb‐Doped Porous Silicon for Advanced Photovoltaic Applications

open access: yesphysica status solidi (a), Volume 222, Issue 22, November 2025.
Doping porous silicon with erbium and ytterbium, followed by thermal oxidation, boosts its near‐infrared absorption by up to 300%. While new silicates form, the bandgap remains stable. This enhanced absorption, coupled with improved charge transfer from impedance data, positions the doped material as a highly promising candidate for developing more ...
Aldo M. C. Gomes, Danilo R. Huanca
wiley   +1 more source

Small Seismic Sources to Improve Survey Efficiency at Reduced Environmental Impact: Case Study From the Brazilian Pre‐Salt

open access: yesGeophysical Prospecting, Volume 73, Issue 9, November 2025.
ABSTRACT In Brazil, concerns about marine life have resulted in strong restrictions on seismic operations, with a minimum distance of 60 km between source vessels and an exclusion zone of 1000 m for marine mammals. These restrictions impact survey efficiency, duration, logistics and cost. Optimized and physically smaller seismic sources may reduce cost
Felipe Capuzzo   +4 more
wiley   +1 more source

Effects of the Addition of Aminosilane‐Functionalized Titanate Nanotubes in Carboxymethylcellulose‐Based Film for Biomedical Applications

open access: yesJournal of Biomedical Materials Research Part B: Applied Biomaterials, Volume 113, Issue 9, September 2025.
ABSTRACT Skin injuries occur when cellular integrity is compromised due to mechanical, physical, or metabolic factors. This study reported on a carboxymethylcellulose (CMC)‐based film incorporating TiNT, aiming at its application as a wound dressing.
Letícia Terumi Kito   +7 more
wiley   +1 more source

Caracterização do Estado da Prática das Atividades de Teste em um Cenário de Desenvolvimento de Software Brasileiro

open access: yesBrazilian Symposium on Software Quality, 2006
A. C. Dias-Neto   +3 more
semanticscholar   +1 more source

Development, content validity, and reliability of an instrument to assess the commercialization of food and beverages in school canteens in Brazil. [PDF]

open access: yesRev Bras Epidemiol
Borges LD   +8 more
europepmc   +1 more source

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