Results 41 to 50 of about 103,036 (243)

Bright‐Dark Exciton Splitting in Lead Iodide Perovskite Crystals Accessed via Quantum Beats in Photon Echoes

open access: yesAdvanced Optical Materials, EarlyView.
Understanding exciton fine structure is crucial for optoelectronic and quantum photonic applications of lead halide perovskites. It is demonstrated that polarization‐sensitive photon‐echo spectroscopy in a magnetic field resolves exciton fine‐structure splittings hidden by inhomogeneous broadening, enabling direct determination of the bright‐dark ...
M. Alex Hollberg   +9 more
wiley   +1 more source

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

open access: yesAdvanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong   +7 more
wiley   +1 more source

The «boyhood friends» of Alexander the Great

open access: yesEmerita, 1985
No disponible.
Waldemar Heckel
doaj   +1 more source

Cation Diffusion‐Mediated Displaced Reaction‐Transformation in Green Steelmaking

open access: yesAdvanced Science, EarlyView.
The removal of O lattice atoms by environmental H2 at the surface of Fe3O4 results in Fe enrichment, driving the inward diffusion of Fe cations into the bulk. Through hopping between unoccupied and initially occupied sites, cation diffusion triggers a spatially displaced reaction‐transformation and drives subsequent dynamic phase transformations and ...
Guangyi Guo   +7 more
wiley   +1 more source

Development and Applications of a Magnetism‐Aware General‐Purpose Atomic Cluster Expansion Potential for the Fe‐O‐H Ternary System

open access: yesAdvanced Science, EarlyView.
Hydrogen‐driven iron oxide reduction, water‐iron corrosion, and hydrogen embrittlement of metallic iron share the same Fe‐O‐H chemistry. A general‐purpose Atomic Cluster Expansion potential covers this chemistry across the full concentration range with explicit Ising‐like treatment of magnetism.
Baptiste Bienvenu   +5 more
wiley   +1 more source

Reading Plutarch of Chaeronea: A Cinematic Portrait of the Youth of Alexander the Great as Envisaged by Robert Rossen and Oliver Stone

open access: yesImages, 2015
Reading Plutarch of Chaeronea: A Cinematic Portrait of the Youth of Alexander the Great as Envisaged by Robert Rossen and Oliver Stone This article is a study of the dynamics of interaction between historiography and “historiophoty” i.e.
Krzysztof Antczak, Dan Tudor Ionescu
doaj   +1 more source

Maximizing the Energy Output of Soft Electrohydraulic Generators

open access: yesAdvanced Science, EarlyView.
Many energy resources cannot be viably harvested with electromagnetic generators. This article evaluates the potential of soft electrohydraulic generators as an alternative approach for energy capture. An analytical model charts their operational limits and a rigorous experimental study results in new performance benchmarks with maximum specific energy
Sophie Kirkman   +7 more
wiley   +1 more source

The Pagan King before the One God

open access: yesClassica Cracoviensia, 2012
The paper is an analysis of the scene in Ant. XI, 8: the supposed meeting between Alexander the Great and the Jewish High Priest, revealing Alexander’s special status as a chosen of God. The analysis concentrates on two issues: the literary character of
Aleksandra Klęczar
doaj   +1 more source

Thermally Assisted Photocatalytic Dehydrogenation of Methanol in Continuous Steady‐State Operation

open access: yesAdvanced Science, EarlyView.
Thermally assisted photocatalytic methanol dehydrogenation on Pt/TiO2 enables formaldehyde and hydrogen production far beyond thermodynamic limits. Continuous operation delivers up to 95% selectivity over 70 h, and oxygen microdosing strongly boosts conversion by regenerating surface oxygen sites.
Florian Stubenrauch   +8 more
wiley   +1 more source

A MEDICAL-HISTORICAL EXAMINATION OF THE DEATH OF ALEXANDER THE GREAT

open access: yesJournal of Ancient History and Archaeology, 2017
Alexander the Great’s cause of death has been contentious since antiquity. Historians and physicians alike have proposed a multitude of hypotheses. However, neither party is without their analytical flaws.
Nathan Gamble, Edmund Bloedow
doaj   +1 more source

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