Results 141 to 150 of about 3,488,609 (297)

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Convective Origin of Stellar Magnetic Fields

open access: yes, 2013
Magnetic fields are pervasive and complex features of many stars, yet neither their dynamics nor their origins are well understood. We propose that a possible origin of some stellar magnetic fields is the thermal gradient in a star’s convection zone ...
Spalsbury, Lori
core  

Stellar evolution with rotation and magnetic fields

open access: yes, 2003
We compare the current effects of rotation in stellar evolution to those of the magnetic field created by the Tayler instability. In stellar regions, where a magnetic field can be generated by the dynamo due to differential rotation (Spruit [CITE ...
G. Meynet, A. Maeder
core   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo   +10 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

open access: yesAdvanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas   +6 more
wiley   +1 more source

The Relationship of Stellar Radius Inflation to Rotation and Magnetic Starspots at 10–670 Myr

open access: yesThe Astrophysical Journal Letters
Active, low-mass stars are widely observed to have radii that are larger than predicted by standard stellar models. Proposed mechanisms for this radius inflation generally involve stellar magnetism, either in the form of added pressure support in the ...
Lyra Cao, Keivan G. Stassun
doaj   +1 more source

Hidden magnetic fields in stellar interiors probed by asteroseismology

open access: yes
Understanding the distribution and evolution of angular momentum is crucial for comprehending star formation processes, stellar evolution and activity, and their influence on planet formation and environment. Recent space photometry missions, such as CoRoT and Kepler, have revolutionized our understanding of stellar structure and evolution by ...
Fort, Antoine   +2 more
openaire   +2 more sources

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

open access: yesAdvanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han   +5 more
wiley   +1 more source

Stellar Cruise Control: Weakened Magnetic Braking Leads to Sustained Rapid Rotation of Old Stars

open access: yesThe Astrophysical Journal
Despite a growing sample of precisely measured stellar rotation periods and ages, the strength of magnetic braking and the degree of departure from standard (Skumanich-like) spin-down have remained persistent questions, particularly for stars more ...
Nicholas Saunders   +10 more
doaj   +1 more source

Stellar Surface Magnetic Fields Impact Limb Darkening [PDF]

open access: yes
Stars appear darker at their limbs than at their disk centers because at the limb we are viewing the higher and cooler layers of stellar photospheres.
Gizon, Laurent   +10 more
core  

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