Results 51 to 60 of about 2,874,977 (345)

The Influence of Annealing on the Sb Layer in the Synthesis of [001]‐Oriented Sb2Se3 Film for Photoelectrochemical Hydrogen Gas Generation

open access: yesAdvanced Functional Materials, EarlyView.
[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa   +7 more
wiley   +1 more source

Pesquisa educacional

open access: yesETD - Educação Temática Digital, 2022
O artigo apresenta dados sobre pesquisa educacional, no campo do desenvolvimento humano de adolescentes, nos ambientes da família, escola e pares. O objetivo é comunicar aos leitores resultados gerais de pesquisa qualitativa, realizada no período de 2015 a 2019, no nível de Doutorado, na Região Metropolitana de Curitiba (RMC), cuja base foi a Teoria ...
Adolfo Antonio Hickmann   +1 more
openaire   +1 more source

POLONORDESTE - pesquisa e experimentação agropecuária: prioridades e metodologia. [PDF]

open access: yes, 2020
O esforço da pesquisa agropecuária desenvolvido no âmbito do Programa POLONORDESTE não vem sendo orientado, na maioria dos projetos, no sentido de atender as necessidades imediatas do pequeno produtor que é a populacão meta do programa.bitstream/item ...
EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido.
core  

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

Conceptualising quality early childhood education: Learning from young children in Brazil and South Africa through creative and play‐based methods

open access: yesBritish Educational Research Journal, EarlyView., 2023
Abstract Early childhood has increasingly been acknowledged as a vital time for all children. Inclusive and quality education is part of the United Nations Sustainable Development Goals, with the further specification that all children have access to quality pre‐primary education.
Laura H. V. Wright   +8 more
wiley   +1 more source

Stabilizing Cationic Palladium Single‐Atom Sites on Heteroatom‐Doped Carbon for Selective Hydrogen Peroxide Electrosynthesis

open access: yesAdvanced Functional Materials, EarlyView.
In this research, it is demonstrated that dual nitrogen and sulfur doping in hollow carbon spheres creates a tunable coordination environment that stabilizes cationic Pd single atoms as robust organometallic complexes, enabling high selectivity and stability for electrochemical hydrogen peroxide production under harsh acidic and peroxide‐rich ...
Guilherme V. Fortunato   +16 more
wiley   +1 more source

Reunião sobre pesquisa com culturas consorciadas: CPATSA, CNPMF, EMEPA, IPA CCA-UFPB, ESAM, EPACE, EMPARN, UEPAE-Teresina, UEPAE-Aracaju, EPEAL, EPABA. [PDF]

open access: yes, 2020
Reunião dos pesquisadores que trabalham com consorciação de culturas no Nordeste.bitstream/item/70993/1/Digitalizar0061 ...
EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido.
core  

Magnetic and Structural Response Tuned by Coexisting Mn Concentration‐Dependent Phases in MnBi2Te4 Thin Film Grown on GaAs(001) by Molecular Beam Epitaxy

open access: yesAdvanced Functional Materials, EarlyView.
The study explores structural and magnetic properties of one of the most recent topological quantum materials (MnBi2Te4). The Mn‐poor structure leads to stacking faults (quintuple layer ‐ QL of Bi2Te3 formation instead of a septuple layer ‐ SL of MnBi2Te4), resulting in a coexistence between weak antiferromagnetism and ferromagnetism.
Wesley F. Inoch   +10 more
wiley   +1 more source

Dissertações apresentadas no Curso de Mestrado em Ciência da Informaçãodo IBICT/UFRJ

open access: yesCiência da Informação, 1990
Relação das 23 dissertações apresentadas a partirde 1987 no Curso de Mestrado em Ciência daInformação, criado em 1970 e atualmenteintegrado na estrutura curricular e acadêmica daEscola de Comunicação (ECO) da UniversidadeFederal do Rio de Janeiro (UFRJ ...
Departamento de Ensino e Pesquisa Ensino e Pesquisa (DEP-Ibict)
doaj  

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