Results 211 to 220 of about 4,032,505 (279)

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

Confined Room-Temperature Ferromagnetism in Kagome (Fe3Sn2/CoSn) Superlattices. [PDF]

open access: yesACS Nano
Dutta R   +12 more
europepmc   +1 more source

Perceived importance and didactic difficulty of chemistry education: Insights from Czech teachers

open access: yesThe Curriculum Journal, EarlyView.
Abstract This empirical study examines how chemistry teachers in lower and upper secondary schools in the Czech Republic evaluate the content of the chemistry curriculum, focussing on its perceived importance and didactic difficulty. Based on a quantitative survey (N = 146), the study provides insight into the pedagogical content knowledge of ...
Jitka Lorenzová   +6 more
wiley   +1 more source

Structural Distortions and Magnetic Ordering in <i>Ae</i><sub>2</sub>FeO<sub>3</sub>Cu<i>Ch</i> (<i>Ae</i> = Ca, Sr; <i>Ch</i> = S, Se) Oxide Chalcogenides. [PDF]

open access: yesInorg Chem
Smyth RD   +10 more
europepmc   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

open access: yesDeep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao   +5 more
wiley   +1 more source

Structural and magnetic investigations of the Weyl semimetal family CeAlSi<sub>1-x</sub>Ge<sub>x</sub>. [PDF]

open access: yesActa Crystallogr B Struct Sci Cryst Eng Mater
Mayoh DA   +7 more
europepmc   +1 more source

Water Electrolysis Technologies for Extraterrestrial Water Resource Conversion

open access: yesEcoEnergy, EarlyView.
This paper reviews four water electrolysis technologies for extraterrestrial water conversion: alkaline water electrolysis, proton exchange membrane water electrolysis, solid oxide water electrolysis, and anion exchange membrane water electrolysis. It elaborates on their mechanisms, components, and integration, highlighting challenges such as water ...
Yawen Jiang   +6 more
wiley   +1 more source

Unveiling Bubble Dynamics of Proton Exchange Membrane Water Electrolysis at Elevated Temperatures

open access: yesEcoEnergy, EarlyView.
This work directly visualizes bubble dynamics in a proton‐exchange membrane water electrolyzer operated at temperatures up to 120°C and pressures up to 100 bar. Elevated‐temperature operation beyond the atmospheric boiling point markedly reduces bubble coverage, leading to lower bubble‐related voltage losses and enhancing cell performance.
Andre Chambers   +4 more
wiley   +1 more source

Thermally Activated Delayed Fluorescence Hybrid Copper(I) Iodide Scintillator for Fast Neutron and X-ray Imaging. [PDF]

open access: yesJ Am Chem Soc
Hu Q   +15 more
europepmc   +1 more source

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