Results 161 to 170 of about 57,568 (302)

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

A 16-Channel Dipole Antenna Array for Human Head Magnetic Resonance Imaging at 10.5 Tesla. [PDF]

Sensors (Basel), 2021
Woo MK, DelaBarre L, Waks M, Radder J, Choi US, Lagore R, Ugurbil K, Adriany G.   +7 more
europepmc   +1 more source

Role of the Recombination Zone in Organic Light‐Emitting Devices

Advanced Materials, EarlyView.
This review summarizes the critical role of the recombination zone in organic light‐emitting diodes (OLEDs). We highlight that broadening the recombination zone in OLEDs based on emissive layers with balanced charge transport and high photoluminescence quantum yields provides a promising route toward achieving both long operational lifetime and high ...
Yungui Li, Karl Leo
wiley   +1 more source

Staircase-Enhanced Magneto-Electric Dipole Antenna for Wideband CP 5G Applications with High-Gain Arrays. [PDF]

Sensors (Basel)
Malhat H, Zakaria A, Qaddoumi N.
europepmc   +1 more source

A 15-channel End-coated Half-wave Dipole Antenna Array System for Foot/Ankle/Calf Imaging at 7T. [PDF]

Proc Int Soc Magn Reson Med Sci Meet Exhib Int Soc Magn Reson Med Sci Meet Exhib, 2022
Bhosale AA, Ying LL, Zhang X.
europepmc   +1 more source

Toward Energy Efficient Electrochemical Valorization of Waste Nitrate and Sulfide

Advanced Materials, EarlyView.
This work introduces an integrated electrochemical strategy couples nitrate reduction with sulfide oxidation for energy‐efficient wastewater valorization. A Cu‐Co dual‑site catalyst, engineered for close proximity, promotes *NO2 relay and subsequently NH3 formation, enabling the system to operate at substantially reduced cell voltages and produce high ...
Bihao Hu, Yifan Zhou, Xiaoyuan Zhang, Shibo Xi, Qian He, Lei Wang   +5 more
wiley   +1 more source

Compact IC-Fed Cavity-Backed CP Crossed-Dipole Antenna with Wide Bandwidth and Wide Beamwidth for SatCom Mobile Terminals. [PDF]

Sensors (Basel)
Mo K, Jiang X, Peng L, Liu Q, Li Z, Fang R, Zhao Q.   +6 more
europepmc   +1 more source

A Simple Printed Cross-Dipole Antenna with Modified Feeding Structure and Dual-Layer Printed Reflector for Direction Finding Systems. [PDF]

Sensors (Basel), 2021
Anim K, Park B, Lee HD, Jang S, Kong S, Jung YB.   +5 more
europepmc   +1 more source

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

Advanced 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, Roshan Velluvakandy, Xianghua Wu, Miguel Angel Merlos Rodrigo, Zbyněk Heger, Kamila Bendíčková, Jan Frič, Martin Pumera   +7 more
wiley   +1 more source

Dipole antenna incorporated with metasurface and cavity reflector for wideband circular polarisation and high gain. [PDF]

Sci Rep
Nkimbeng CHS, Wang H, Lee H, Park YB, Park I.   +4 more
europepmc   +1 more source