Results 91 to 100 of about 661,973 (348)

Warped Reheating in Multi-Throat Brane Inflation

open access: yes, 2005
We investigate in some quantitative details the viability of reheating in multi-throat brane inflationary scenarios by estimating and comparing the time scales for the various processes involved.
A. Sen   +64 more
core   +1 more source

Top‐Down Fabricated Wood‐Derived Pressure and Strain Sensors: A Review

open access: yesAdvanced Science, EarlyView.
This review focuses on wood‐derived pressure/strain sensors fabricated via top‐down strategies. It analyzes wood's structural composition, examines processing techniques, discusses sensor types and sensing mechanisms, and reviews existing research. The article concludes with future directions for enhancing performance and scalability.
Yi Ren   +8 more
wiley   +1 more source

Neurosarcoidosis presenting as CRVO combined CRAO: a biopsy-proven case report of a Chinese patient

open access: yesBMC Ophthalmology, 2020
Background Neurosarcoidosis is a rare systemic disorder that can affect the eye and other organs, including the central nervous system. Neurosarcoidosis infiltrating the optic nerve presenting as central retinal vein occlusion combined with artery ...
Chaoyi Feng   +7 more
doaj   +1 more source

Multiscale Cell–Cell Interactive Spatial Transcriptomics Analysis

open access: yesAdvanced Science, EarlyView.
In this study, we present the MultiScale Cell‐Cell Interactive Spatial Transcriptomics Analysis method, which unites the strengths of spatially resolved deep learning techniques with a topological representation of multi‐scale cell‐cell similarity relations.
Sean Cottrell, Guo‐Wei Wei
wiley   +1 more source

Area spectrum of the Schwarzschild black hole

open access: yes, 1996
We consider a Hamiltonian theory of spherically symmetric vacuum Einstein gravity under Kruskal-like boundary conditions in variables associated with the Einstein-Rosen wormhole throat.
A. Ashtekar   +60 more
core   +2 more sources

Biodegradable MXene‐Bamboo Cellulose Paper Electrodes for Green Wearable Sensing and Exoskeleton Control

open access: yesAdvanced Science, EarlyView.
A biodegradable, soft, and conductive MXene‐cellulose nanofiber paper electrode integrates Ti3C2Tx nanosheets into bamboo‐derived scaffolds, with a porous Ecoflex coating that imparts waterproofing and breathability. The freestanding dry electrode enables high‐fidelity EMG sensing, strain and pressure detection, and wireless control of a knee ...
Tung‐Li Hung   +15 more
wiley   +1 more source

High Electrical Conductivity Induced by Surface Confinement Effect in Heterostructured Multifunctional Nanofiber Composite Films for Low‐Reflection Electromagnetic Interference Shielding

open access: yesAdvanced Science, EarlyView.
Spray‐coated PVA‐co‐PE/AgNW/MXene films achieve 60.2 dB EMI shielding (8–20 GHz) with low reflection (R = 0.13) at 5.4 wt.% loading. The 3D conductive network enhances absorption, while the film offers high strength (18.33 MPa), Joule heating, photothermal conversion, flexibility, and flame resistance.
Dechang Tao   +8 more
wiley   +1 more source

On thin-shell wormholes evolving in flat FRW spacetimes

open access: yes, 2011
We analize the stability of a class of thin-shell wormholes with spherical symmetry evolving in flat FRW spacetimes. The wormholes considered here are supported at the throat by a perfect fluid with equation of state $\mathcal{P}=w\sigma$ and have a ...
Bronnikov K. A.   +8 more
core   +1 more source

MXene‐Integrated Printed Piezoresistive Flexible Sensors: A Breakthrough in Real‐Time Monitoring for Medical and Smart Applications

open access: yesAdvanced Science, EarlyView.
A chocolate‐inlaid Ag@waffle‐structured MXene is synthesized in this research via template‐directed growth strategy (WSM‐A8). The pressure sensor prepared with the WSM‐A8 presents the highest ΔI/I0 response intensity among the reported MXene‐based piezoresistive sensors with satisfactory sensitivity, outstanding structural stability, and superior ...
Hao‐wen Zhang   +6 more
wiley   +1 more source

Desirable Pore Connectivity Effects in Multiscale Interactive Cobalt Centers with Asymmetric B/N‐Coordination Carbon for Promoting Zn‐Air Batteries

open access: yesAdvanced Science, EarlyView.
A bicontinuous constructed cobalt active centers/asymmetric B/N‐coordination carbon catalyst is developed, which the ZAB assembled with CoBNPCF‐900 air cathode exhibits ultralong stability (1706.6 h). The permeability simulations indicate that the catalytic active site is highly exposed to the electrolyte, guaranteeing a high catalytic efficiency ...
Tingzheng Fu   +8 more
wiley   +1 more source

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