Results 81 to 90 of about 478,739 (348)

Correlated Dual‐Gradient Electrodes Enabling Spatially Synchronized Sulfur Redox in High‐Mass‐Loading Li–S Batteries Under High Current Densities

open access: yesAdvanced Materials, EarlyView.
Coupling a dual‐gradient carbonized framework with Fe2O3/Fe‐N‐C catalytic sites enables spatially synchronized sulfur redox across the entire electrode thickness in high‐mass‐loading Li–S batteries. This synergistic structural–catalytic design effectively mitigates concentration, ohmic, and electrochemical polarization, thereby achieving high‐capacity ...
Yuxuan Zhang   +6 more
wiley   +1 more source

Global migration explosion: a challenge of the XXI century

open access: yesУкраїнський соціологічний журнал, 2018
Demographic explosion of the twentieth century led to a huge increase in the population of the developing world, and thus to the emergence of a demographic asymmetry of the developing and developed countries (global South and global North).
Anatoliy Vishnevsky
doaj  

Reconstruction of Solar Subsurfaces by Local Helioseismology

open access: yes, 2016
Local helioseismology has opened new frontiers in our quest for understanding of the internal dynamics and dynamo on the Sun. Local helioseismology reconstructs subsurface structures and flows by extracting coherent signals of acoustic waves traveling ...
A. C. Birch   +37 more
core   +1 more source

Implication of the lopsided growth for the viscosity of Earth's inner core [PDF]

open access: yes, 2012
Two main seismic features characterize the Earth's inner core: a North-South polar anisotropy and an East-West asymmetry of P-wave velocity and attenuation. Anisotropy is expected if shear deformation is induced by convective motions.
Alboussiere   +36 more
core   +3 more sources

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

open access: yesAdvanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju   +7 more
wiley   +1 more source

Materials and System Design for Self‐Decision Bioelectronic Systems

open access: yesAdvanced Materials, EarlyView.
This review highlights how self‐decision bioelectronic systems integrate sensing, computation, and therapy into autonomous, closed‐loop platforms that continuously monitor and treat diseases, marking a major step toward intelligent, self‐regulating healthcare technologies.
Qiankun Zeng   +9 more
wiley   +1 more source

Association between Solar Variability and Teleconnection Index

open access: yesJournal of Astronomy and Space Sciences, 2019
In this study, we investigate the associations between the solar variability and teleconnection indices, which influence atmospheric circulation and subsequently, the spatial distribution of the global pressure system. A study of the link between the Sun
Jung-Hee Kim, Heon-Young Chang
doaj   +1 more source

Rings and Radial Waves in the Disk of the Milky Way

open access: yes, 2015
We show that in the anticenter region, between Galactic longitudes of $110 ...
Carlin, Jeffrey L.   +7 more
core   +1 more source

Site‐Selective Polyvinylpyrrolidone Adsorption Behavior for 3D Heterogeneous Integration

open access: yesAdvanced Materials Technologies, EarlyView.
Site‐selective adsorption behavior is presented with polyvinylpyrrolidone on a Cu/SiO2 pattern wafer, which enables 3D heterogeneous integration. Owing to the site‐selective adsorption behavior and its corresponding electrostatic interaction between SiO2 nanoparticles and the Cu surface, the selectivity of Cu/SiO2 is arbitrarily controlled ...
Hosin Hwang   +9 more
wiley   +1 more source

Titan’s Atmospheric Albedo Asymmetry and Seasonal Variability Observed through the Cassini Imaging Science Subsystem

open access: yesThe Planetary Science Journal
Using images from Cassini, we analyzed the north–south albedo asymmetry that has been observed in the atmosphere of Saturn’s moon, Titan. Suitable images from the Cassini Imaging Science Subsystem taken at 889 nm spanned from 2004 to 2017—around half of ...
C. Snell, D. Banfield
doaj   +1 more source

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