Results 121 to 130 of about 14,244,062 (276)

Static Drainage H2/O2 PEM Fuel Cells Enabled by Water Transport Plates: Pore‐Scale Design and Transport Mechanisms

open access: yesAdvanced Science, EarlyView.
The WTP is a key component of static drainage PEMFCs, enabling cathode water removal and gas sealing through capillary forces. This work investigates the mechanisms governing WTP drainage and sealing performance and develops predictive approaches for WTP design optimization.
Mengdi Guo   +3 more
wiley   +1 more source

Synergistic Integration of Fe–N4 Single‐Atom Sites and Directionally Aligned Electrode Architecture for High‐Performance Lithium–Sulfur Batteries

open access: yesAdvanced Science, EarlyView.
A directionally ice‐templated sulfur cathode integrated with atomically dispersed Fe–N4 catalytic sites is developed for high‐performance lithium–sulfur batteries. The structure–catalysis synergy accelerates Li+ transport and polysulfide conversion, leading to high sulfur utilization and stable long‐term cycling performance.
Lin Shen   +8 more
wiley   +1 more source

Aperture Masking Image Dataset [PDF]

open access: yes
Image data observed through the aperture masking optical setup (see Readme ...
三浦, 則明   +9 more
core   +1 more source

High‐Precision Airborne Circular SAR Imaging Method Based on Sub‐Aperture Autofocusing Combined With Terrain Undulation Error Compensation

open access: yes
Airborne circular synthetic aperture radar (CSAR) has the ability of multiangle observation and high‐resolution imaging in remote sensing applications, but its imaging performance is often degraded by the platform motion error and terrain undulation ...
Nannan Zhu   +3 more
core   +1 more source

Polarization Holographic 4D Phenotyping Reveals Nanoplastic Induced Dysfunction in Zooplankton

open access: yesAdvanced Science, EarlyView.
Contaminant‐induced dysfunction in complex aquatic organisms remains difficult to resolve across scales. Polarization Holographic Imaging Microscopy (PHIM) integrates polarization‐sensitive holography with computational volumetric reconstruction for label‐free phenotyping of zooplankton in natural seawater, revealing that nanoplastic stress drives ...
Yuxing Li   +8 more
wiley   +1 more source

A Gut‐Brain Axis Underlying Succinate‐Associated Compulsive‐Like Behavior

open access: yesAdvanced Science, EarlyView.
Gut‐derived succinate is associated with an excitatory‐inhibitory imbalance in dmPFC glutamatergic neurons, involving microglial SUCNR1 activation and vagal afferent signaling via upregulated gut 5‐HT4 receptors along the DVC‐CeA‐dmPFC circuit, changes that are linked to excessive compulsive‐like behavior.
Yi Li   +12 more
wiley   +1 more source

A Fast Back‐Projection Imaging Method for GEO SAR Geometric Distortion Calibration Based on Dynamic Selection of Local Sub‐Aperture Images Using Coarse DEM

open access: yesIET Radar, Sonar & Navigation
Geosynchronous synthetic aperture radar (GEO SAR) provides extensive beam coverage and strong continuous observation capabilities, making it a research focus in the remote sensing.
Jingjing Ti   +3 more
doaj   +1 more source

Using Multispectral Information to Decrease the Spectral Artifacts in Sparse-Aperture Imagery [PDF]

open access: yes, 2005
Optical sparse-aperture telescopes represent a promising new technology to increase the effective diameter of an optical system while reducing its weight and stowable size.
Introne, Robert E.   +2 more
core  

Linker‐Locking Strategy for the Rigidification of Flexible Metal–Organic Framework: Structural Stabilization and Controlled ESIPT for H2O/D2O Sensing

open access: yesAdvanced Science, EarlyView.
A linker‐locking strategy rigidifies the flexible metal–organic framework (MOF) MIL‐53‐(OH)2 via the cooperative encapsulation of ligands and structural water. This network significantly enhances the framework's aqueous stability. Crucially, rigidification suppresses enol emission to yield a single keto tautomer state with an extended lifetime ...
Amitosh Sharma   +8 more
wiley   +1 more source

Real‐Time Monitoring of Mass and Mechanical Properties in Single Cells and Multicellular Spheroids

open access: yesAdvanced Science, EarlyView.
This study introduces photothermally actuated microcantilevers combined with optical microscopy to simultaneously measure morphology, mass, and mechanical properties of cellular systems in real‐time. The findings link cytoplasm‐dominated mechanical energy dissipation to the Q‐factor as a novel biophysical parameter.
Ilaria Incaviglia   +8 more
wiley   +1 more source

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