Results 111 to 120 of about 70,657 (316)

Ultrathin, Unsinkable, Janus‐Faced Solar–Thermal Interfacial Evaporator for High‐Throughput Seawater Distillation and Solar‐Water Production

open access: yesAdvanced Science, EarlyView.
A nanostructured carbon‐coated porous polymeric scaffold is developed to accelerate the hydrological cycle, enabling solar–thermal freshwater production from saline water with reduced energy consumption and CO2 footprint. Abstract Solar–thermal distillation offers immense and hitherto untapped potential for energy‐efficient, sustainable freshwater ...
Mohammed Aslam Villan   +6 more
wiley   +1 more source

Simple Views on Modified Newtonian Dynamics

open access: green
M. Nowakowski   +2 more
openalex   +2 more sources

AI‐Directed 3D Printing of Hierarchical Polyurethane Foams

open access: yesAdvanced Science, EarlyView.
Digitally guided direct ink writing, combined with AI‐generated design, enables the fabrication of hierarchical polyurethane foams with tunable multiscale porosity. This approach produces architected foams featuring interconnected open‐cell networks and tailored mechanical properties, advancing the development of adaptive, high‐performance materials ...
Dhanush Patil   +15 more
wiley   +1 more source

Probing the Nature of Gravity in the Low-acceleration Limit: Wide Binaries of Extreme Separations with Perspective Effects

open access: yesThe Astrophysical Journal
Recent statistical analyses of wide binaries have revealed a boost in gravitational acceleration with respect to the prediction by Newtonian gravity at low internal accelerations ≲10 ^−9 m s ^−2 .
Youngsub Yoon, Yong Tian, Kyu-Hyun Chae
doaj   +1 more source

On the Evidence for the Violation of the Equivalence Principle in Disk Galaxies

open access: yesParticles
We examine the claimed observations of a gravitational external field effect (EFE) reported by Chae et al. We show that observations suggestive of the EFE can be interpreted without violating Einstein’s equivalence principle, namely from known ...
Corey Sargent   +7 more
doaj   +1 more source

Mussel‐Bioinspired Edible Ca2+‐Crosslinked Alginate Hydrogel Electrodes for Glucose Gastrointestinal Monitoring

open access: yesAdvanced Science, EarlyView.
A fully edible soft electrode is engineered from Ca2⁺‐crosslinked alginate integrated with polydopamine, silver nanoparticles, and food‐grade glucose oxidase. The hybrid hydrogel combines ionic and electronic conduction, enabling efficient glucose‐to‐H2O2 conversion and catalytic reduction in simulated intestinal fluid.
Verdiana Marchianò   +10 more
wiley   +1 more source

Insight‐Guided Optimization of the Individual Steps in Ambient Slot‐Die‐Coated Perovskite Solar Cells

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This graphical abstract presents an integrated workflow for optimizing perovskite thin film fabrication by tuning ink rheology, refining processing parameters, and controlling crystallization. Viscosity control and process optimization precisely regulate wet film thickness and drying time, while crystallization directed by solvent additives yields ...
Alejandra Flórez   +8 more
wiley   +1 more source

Modified Newtonian dynamics and the Coma cluster

open access: yesThe Astronomical Journal, 1988
The consistency of Milgrom's theory of modified Newtonian dynamics is checked against optical and X-ray data for the Coma cluster of galaxies. It is found that viable models for the cluster containing no dark matter can be constructed. They require an extensive gaseous atmosphere through which galaxies move on near-radial orbits. The gas temperature is
Lih Sin The, Simon D. M. White
openaire   +1 more source

Wearable Metamaterials with Embodied Intelligence for Programmable Control of Human Limbs Tremor

open access: yesAdvanced Intelligent Systems, EarlyView.
Resulting from alternating muscle contractions, tremors can severely limit human ability to perform everyday tasks like walking or talking, due to their disruptive nature. Medication and surgery may not always effectively address tremor control. A wearable device embodying programmable smart metamaterials with adaptable intelligence to meet the demand ...
Braion Barbosa de Moura   +2 more
wiley   +1 more source

Open Star Clusters and Their Asymmetrical Tidal Tails

open access: yesThe Astrophysical Journal
Stars that evaporate from their star cluster by the energy equipartition process end up in either a leading or a trailing tidal tail. In Newtonian gravitation and for open star clusters in the solar vicinity, the tidal threshold, or práh, for escape is ...
Pavel Kroupa   +6 more
doaj   +1 more source

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