Results 161 to 170 of about 24,685 (268)

Wearable‐Derived Diurnal Alignment Between Physical Activity and Device Temperature Predicts Future Disease and Mortality Risk

open access: yesAdvanced Science, EarlyView.
Wearable‐derived diurnal alignment between physical activity and device temperature, decomposed into 24 h coupling strength (M24), phase deviation (D24), and 12 h harmonic magnitude (M12), is examined in approximately 90,000 UK Biobank participants.
Han Chen   +6 more
wiley   +1 more source

Halide Perovskite: A Rich Source of Thermal Insulator

open access: yesAdvanced Science, EarlyView.
Halide perovskites exhibit ultralow thermal conductivity driven by intrinsic lattice softness and strong anharmonicity, falling below conventional defect‐engineering limits. Weak metavalent bonding, A‐site rattling, and dynamic octahedral tilting drive phonon scattering to the Ioffe–Regel limit, where wave‐like tunneling replaces particle‐like ...
Haolin Ye   +3 more
wiley   +1 more source

MnO<sub>2</sub>-Modified Bacterial Cellulose as Bio-Based Coatings for Efficient Oil-Water Separation. [PDF]

open access: yesACS Omega
Chunjit J   +4 more
europepmc   +1 more source

Freestanding Bamboo‐Like Nitrogen‐Doped Carbon Nanofibers/PANI Dual‐Conductive Cathodes via Interfacial Engineering for High‐Performance Lithium–Sulfur Batteries

open access: yesAdvanced Science, EarlyView.
Bamboo‐like nitrogen‐doped carbon fibers (BNCFs) were synthesized via a vapor‐liquid‐solid catalytic growth method and further integrated with polyaniline to fabricate a freestanding BNCFs/S/PANI cathode. The PANI coating and BNCFs framework synergistically establish an interconnected conductive network with abundant nitrogen‐active sites, thereby ...
Jie Yang   +5 more
wiley   +1 more source

Gravitational baryogenesis in energy-momentum squared gravity

open access: yes
We investigate the phenomenon of gravitational baryogenesis within the context of a specific modified theory of gravity, namely, energy-momentum squared gravity or $f(R, T_{μν}T^{μν})$ gravity.
Lobo, Francisco S. N.   +2 more
core  

Kinetic Jeans instability in FOG framework. [PDF]

open access: yesSci Rep
Das M, Atteya A, Karmakar PK.
europepmc   +1 more source

Improved Direct Ink Writing of Liquid Metal Foams via Liquid Additives

open access: yesAdvanced Electronic Materials, EarlyView.
The ability to pattern liquid metal is useful for making soft electrical and thermal devices. Dispensing liquid metal from a nozzle naturally results in the formation of spheroidal droplets, making direct‐write printing challenging. Liquid metal foams containing pockets of air can extrude as filaments, albeit inconsistently.
Febby Krisnadi   +3 more
wiley   +1 more source

A Study of Levia-Civita and Cosmic String Solutions in Modified $f(R)$ Gravity

open access: yes
In this research manuscript, we explore cylindrically symmetric solutions within the framework of modified $f(R)$ theories of gravity, where $R$ representing the Ricci scalar.
Malik, Adnan
core  

Controls on natural hydrogen generation during serpentinization of mantle rocks. [PDF]

open access: yesNat Commun
Christiansen R   +8 more
europepmc   +1 more source

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