Results 141 to 150 of about 4,760,247 (349)

Electrochemical Formation of BiVO4/BiPO4 Photoanodes for Enhanced Selectivity toward H2O2 Generation

open access: yesAdvanced Functional Materials, EarlyView.
In acidic KPi, V dissolves from the BiVO4 lattice, while adsorbed phosphate reacts with the electrode under an external bias, forming a BiPO4 surface layer. This BiPO4 layer exhibits stronger bicarbonate adsorption, redirecting the water oxidation pathway toward two‐electron H2O2 production.
Kaijian Zhu   +12 more
wiley   +1 more source

Hydrodynamic instability growth of the fuel–ablator interface induced by rippled rarefaction waves in inertial confinement fusion implosion experiments

open access: yesMatter and Radiation at Extremes
Hydrodynamic instability growth at the deuterium–tritium (DT) fuel–ablator interface plays a critical role in determining the performance of inertial confinement fusion implosions.
Zheng Yan   +8 more
doaj   +1 more source

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu   +14 more
wiley   +1 more source

Enhancing computational thinking in preservice elementary math teachers through Design-Based Learning

open access: yesMillenium
Introduction: Computational thinking and coding are essential competencies for future mathematics educators, fostering problem-solving and logical reasoning.
Pedro Tadeu, Deniz Kaya, Tamer Kutluca
doaj  

Mathematical reasoning and the computer

open access: yesBulletin of the American Mathematical Society
Computers have already changed the way that humans do mathematics: they enable us to compute efficiently. But will they soon be helping us to reason? And will they one day start reasoning themselves? We give an overview of recent developments in neural networks, computer theorem provers, and large language models.
openaire   +3 more sources

Purcell‐Enhanced Spectrally Precise Emission in Dual‐Microcavity Organic Light‐Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
Spectrally precise emission from broadband organic light‐emitting diodes is realized via a dual‐microcavity strategy. This architecture achieves narrowband emission (full width at half maximum, FWHM = 21 nm) with ultrapure color approaching BT.2020 by enhancing the Purcell effect via coupling of excitons with dual‐microcavity resonance.
Jun Yong Kim   +3 more
wiley   +1 more source

Exploring the Characteristics of Digital Pedagogy Model for Developing Computational Thinking in Mathematical Problem Solving

open access: yesJTAM (Jurnal Teori dan Aplikasi Matematika)
Challenges in the 21st century are increasingly complex, technology is developing rapidly and competition is getting tougher. Therefore we need quality human resources that can keep up with and anticipate the times.
Vita Nova Anwar   +3 more
doaj   +1 more source

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