Results 211 to 220 of about 776,777 (280)

A comparison of normobaric and hypobaric hypoxia effects on cerebrovascular response pre and post maximal exercise

Experimental Physiology, EarlyView.
Abstract A lack of consensus remains on whether normobaric hypoxia (NH) and hypobaric hypoxia (HH) may differentially impact physiological factors affecting cerebrovascular regulation, particularly with an additional strenuous exercise component. We sought to compare the acute effects of NH and HH on global cerebral blood flow (gCBF) at an altitude ...
Rachel Turner, Giovanni Vinetti, Giacomo Strapazzon, Hannes Gatterer   +3 more
wiley   +1 more source

PD Koch Complementary Fractal UHF Antenna Based on AMC Metasurface. [PDF]

Sensors (Basel)
Zhang H, Han D, Ke M, Luo L, Huang Z, Zhang G.   +5 more
europepmc   +1 more source

Integration of hBN Single‐Photon Emitters Into a Hybrid Optomechanical Membrane‐In‐The‐Middle Fiber‐Cavity

Nanophotonics, Volume 15, Issue 19, 13 October 2026.
Deterministic manipulation of hexagonal boron nitride (hBN) flakes enables single‐photon emitters (SPEs) to be integrated into a fiber‐based Fabry–Pérot membrane‐in‐the‐middle cavity. Cavity coupling enhances and spectrally funnels the broadband emitter fluorescence, while allowing access to mechanical membrane modes for future hybrid optomechanical ...
P. Maier, A. Kubanek
wiley   +1 more source

Design and experimental validation of multi-section directional coupler with arbitrary coupling and high directivity for sub-6 GHz UWB applications. [PDF]

PLoS One
Patel SK, Barik RK, Dewangan NK, Koziel S.   +3 more
europepmc   +1 more source

Mechanistic Diversity in Photoexcited Radical Redox Chemistry: A Critical Evaluation

Angewandte Chemie International Edition, Volume 65, Issue 42, 12 October 2026.
Many high‐profile examples of photoredox catalysis are proposed to proceed via excitation of an open‐shell intermediate form of the catalyst. However, there is much debate over whether such mechanisms are realistic and, if so, exactly how they can occur.
Samuel J. Horsewill, Ryan Phelps, Joshua P. Barham, Daniel J. Scott   +3 more
wiley   +1 more source

A Compact Dual-Port Dual-Polarized Ultrawideband Wearable Textile Antenna for Off-Body Communications in IoT-Based WBAN Scenarios. [PDF]

Sensors (Basel)
Guo K, Gao X, Tang W, Bu X, An J.
europepmc   +1 more source

Hydrogel‐Based 3D‐Printed Anthropomorphic Breast Phantom for Emulating Mechanical and Dielectric Properties of Mammary Tissue. Applications in Microwave Imaging

Advanced Functional Materials, Volume 36, Issue 82, 12 October 2026.
A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu, Daniel Álvarez Sánchez‐Bayuela, Gianluigi Tiberi, Eliana Canicattì, Agostino Monorchio, Ester Vázquez   +5 more
wiley   +1 more source

Design and analysis of modified octagonal ring-shaped MIMO antenna with connected ground for 5G sub-6 GHz n79, Wi-Fi 5, and Wi-Fi 6E band applications. [PDF]

Sci Rep
Addepalli T, Medasani S, Sathish K, Kumar JP, Balaji M, Kumar R, Kumar A, Singh DK, Sharma M, Pandey A.   +9 more
europepmc   +1 more source

Soft Skins With Reversible Thickness Morphing: Materials, Mechanisms, and Applications

Advanced Materials, Volume 38, Issue 55, 1 October 2026.
Evolution of electronic skin (e‐skin) technologies toward adaptive, multifunctional soft skins. Phase I highlights early rigid and discrete sensory interfaces. Phase II shows the transition toward flexible, stretchable, and large‐area e‐skin. Phase III captures the emergence of computational e‐skin.
Oliver Ozioko, Chiamaka Akah, Ravinder Dahiya   +2 more
wiley   +1 more source