Results 231 to 240 of about 19,271 (301)

Topological Photonic Devices and Circuits at Terahertz Frequencies

Laser &Photonics Reviews, EarlyView.
This review examines how 3D topological insulators and emerging topological photonic phases enable robust, low‐loss and defect‐immune terahertz devices. Fundamental properties, device implementations and topological transport mechanisms are surveyed, revealing new opportunities for reconfigurable, high‐performance THz components and scalable ...
Samane Kalhor, Srabani Kar, Ranjan Singh, Kaveh Delfanazari   +3 more
wiley   +1 more source

Millimeter-Wave Antennas for 5G Wireless Communications: Technologies, Challenges, and Future Trends. [PDF]

Sensors (Basel)
Yang Y, Mao M, Xu J, Liu H, Wang J, Song K.   +5 more
europepmc   +1 more source

Resonant X‐Ray Diffraction of Conjugated Polymers at the Selenium K‐Edge

Macromolecular Rapid Communications, EarlyView.
Analogous to isomorphous replacement used in X‐ray crystallography studies of proteins, substituting sulfur for selenium in conjugated polymers enables resonant diffraction studies of molecular packing down to the length scale of π‐‐π stacking. Two selenium‐containing polymers are studied with a comparison made between sulfur K‐edge and selenium K‐edge
Guillaume Freychet, Nigel Kirby, Matthew Gebert, Yun‐Hi Kim, Qiao He, Martin Heeney, Christopher R. McNeill   +6 more
wiley   +1 more source

A high isolated, high gain millimeter wave quad-port MIMO antenna array for wideband 5G new radio application. [PDF]

Sci Rep
Tiwari P, Rai JK, Dwivedi AK, Gahlaut V, Ranjan P, Chowdhury R, Pandey A.   +6 more
europepmc   +1 more source

Mutual Coupling Between Slots in Planar Waveguide Slotted Array Antenna [PDF]

, 2001
Bhattacharya, Joita, Borkar, V G, Rao, Ramakoteswara G V   +2 more
core  

A Hybrid RF Coil for Whole‐Brain Imaging in Non‐Human Primates at 7 T

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Ultra‐high field MRI (≥ 7 T) offers unprecedented potential for mapping non‐human primate (NHP) brain function. However, complex electromagnetic systems are required to meet the challenges of UHF imaging and the mechanical demands of awake NHP studies.
Elias Djaballah, Éric Giacomini, Paul‐François Gapais, Michel Luong, Alexis Amadon, Qi Zhu   +5 more
wiley   +1 more source

Design of an Ultra-Wideband MIMO Antenna with Open-Slot Structures for 5G Metal-Frame Smartphones. [PDF]

Sensors (Basel)
Chen L, Bai J, Gu H.
europepmc   +1 more source

Characterization of Fuel Rods Supported by Dimple‐Less Spacer Grids and Subjected to Nonlinear Vibrations

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari, Brian Painter, Kostas Karazis, Marco Amabili   +3 more
wiley   +1 more source

An In-Depth Statistical Analysis of the TARC Parameter to Evaluate the Real Impact of Random Phases in MIMO Antennas. [PDF]

Sensors (Basel)
Perez-Miguel A, Jardon-Aguilar H, Tirado-Mendez JA, Gomez-Villanueva R, Flores-Leal R, Fritz-Andrade E.   +5 more
europepmc   +1 more source

‘Manure gets into your veins’: Navigating plural valuation among rural landowners upstream from a Tribe‐led restoration project

People and Nature, EarlyView.
Abstract Ecological restoration projects with diverse interest groups face the continual challenge of engaging values, goals and cultures that may vary greatly among partners. As part of an eco‐cultural, riparian restoration project led by the Northwestern Band of the Shoshone Nation, our research examines the instrumental, relational and intrinsic ...
Sarah Woodbury, Kirsten Vinyeta, William Munger, Sarah Klain   +3 more
wiley   +1 more source