Results 101 to 110 of about 3,078 (202)

On the Influence of Catalyst Mesopore Structure in the Catalytic Cracking of Polypropylene

open access: yesChemistryEurope, Volume 4, Issue 2, February 2026.
Catalytic cracking is a promising approach to convert polyolefin plastics into hydrocarbons. Herein, the effect of catalyst pore size in polypropylene cracking using amorphous silica–alumina with identical external acidity, but varying mesopore diameters and particle sizes, is isolated. Mesopore size has minimal effect on activity, indicating that high
Sebastian Rejman   +7 more
wiley   +1 more source

Ab Initio Calculation of Energy Gap and Optical Gap of Organic Semiconductors PTCDA and PDI

open access: yesChemPhysChem, Volume 27, Issue 3, February 2026.
We benchmark electronic structure methods for predicting energy and optical gaps of three organic semiconductors from molecules to crystals. GW is most reliable for crystalline energy levels, while single‐molecule time‐dependent density functional theory with a polarizable continuum model delivers remarkable accuracy for some quantities at a much lower
Chieh‐Min Hsieh   +4 more
wiley   +1 more source

Polymer‐Assisted Direct and Rapid Microwave Synthesis of Mesoporous Binary and Ternary Metal Oxides for Electrocatalytic Water Oxidation

open access: yesSmall, Volume 22, Issue 8, 6 February 2026.
A novel direct and facile microwave synthesis route to prepare mesoporous binary and ternary metal oxides with P‐123® as porogen is presented. NiFe2O4 is applied in alkaline Oxygen Evolution Reaction (OER) and shows improved performance in comparison to nanoparticular and Evaporation Induced Self‐Assembly (EISA)‐derived mesoporous NiFe2O4.
Jasmin Helgert   +3 more
wiley   +1 more source

Chemically Accurate Prediction of CO2 Adsorption Thermodynamics in Metal–Organic Framework CALF‐20: Complementary Ab Initio Modeling and Grand Canonical Monte Carlo Simulations

open access: yesSmall Structures, Volume 7, Issue 2, February 2026.
Ab initio thermodynamics and GCMC simulations reveal a cooperative two‐step CO2 pore filling mechanism in CALF‐20. The study captures adsorption energetics and loading‐dependent structural changes, reproducing experimental isotherms with chemically accurate predictions.
Kaido Sillar   +3 more
wiley   +1 more source

Thresholds of Wave Forcing: Implications for Atoll Reef Dynamics Under Sea Level Rise

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract We investigate the response of shallow reef flow to tidal variability and wave exposure during a 4‐month field campaign in southern Huvadhu Atoll, Maldives. Incident waves breaking on steep fore reefs and reef crests generate a setup proportional to offshore wave height that drives a cross‐reef flow. We emphasize a critical threshold—where the
M. Lindhart   +3 more
wiley   +1 more source

Predicting animal movement with deepSSF: A deep learning step selection framework

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 2, Page 371-391, February 2026.
Abstract Predictions of animal movement are vital for understanding and managing wild populations. However, the fine‐scale, complex decision‐making of animals can pose challenges for the accurate prediction of trajectories. Integrated step selection functions (iSSFs), a common tool for inferring relationships between animal movement and the environment,
Scott W. Forrest   +6 more
wiley   +1 more source

Models in Decision‐Making Under Risk and Uncertainty

open access: yesJournal of Economic Surveys, Volume 40, Issue 1, Page 304-320, February 2026.
ABSTRACT This paper systematically compares dominant frameworks for modeling decision‐making under risk and uncertainty, evaluating their theoretical trade‐offs and practical relevance for economic research. We establish key criteria for model selection—including predictive accuracy, descriptive realism, computational tractability, and ecological ...
Martin Höppner
wiley   +1 more source

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