Results 161 to 170 of about 710,562 (363)

Active Gain-Controlled Beam-Steering Transmissive Surface

open access: yesIEEE Open Journal of Antennas and Propagation
Engineered electromagnetic surfaces enable enhancing the strength of a signal in the desired direction(s) using anomalous reflection/transmission. However, to boost the gain of the conventional surfaces, the common solution is to increase its aperture ...
Seyed Ehsan Hosseininejad   +4 more
doaj   +1 more source

Rationally Designed Carbon Nanomaterials for Electrically Driven Solid‐State Hydrogen Storage

open access: yesAdvanced Functional Materials, EarlyView.
A bottom‐up design principle integrating atomic‐level and nanoscale structural engineering is developed to guide the rational design of electrically tunable, solid‐state hydrogen storage materials that enable non‐dissociative chemisorption under applied electric fields.
Yong Gao   +30 more
wiley   +1 more source

Time-modulated 1-bit amplitude-coded metasurface for space-frequency beam shaping

open access: yesScientific Reports
Two-dimensional (2D) space-encoded metamaterials enable the progressive development of a multitude of functionalities for controlling electromagnetic (EM) waves. Recently, time-modulated phase-coded metasurfaces have been introduced into 2D metamaterials,
Seyed Ehsan Hosseininejad   +2 more
doaj   +1 more source

vBerlinV2N: Recreating a Cellular Network Measurement Campaign With Simulations

open access: yesIEEE Access
System-level simulations play a crucial role in evaluating the behaviors of cellular networks, yet most studies rely on synthetic simulation scenarios rather than reproducing realistic network deployments.
Christian L. Vielhaus   +6 more
doaj   +1 more source

Defect‐Free Block Copolymer‐Based Distributed Bragg Reflector for Optimized Light Harvesting in BiVO4 Photoanodes

open access: yesAdvanced Functional Materials, EarlyView.
A solution‐processed distributed Bragg reflector (DBR) film, integrated via block copolymer (BCP) self‐assembly, enhances photon recycling in BiVO4 photoanodes for improved photoelectrochemical (PEC) performance. By tuning lamellar structures using lactic acid and cross‐linking density, the DBR film optimally shifts working wavelengths, boosting ...
Shangxian Ding   +11 more
wiley   +1 more source

Compact waveguide-integrated metasurface twist with filtering and phase shifting capabilities for millimeter-wave guided-wave applications

open access: yesiScience
Summary: Recent advancements in metasurfaces have enabled precise control of wave properties such as amplitude, phase, and polarization, which are critical for multifunctional devices in modern communications.
Amirmasood Bagheri   +4 more
doaj   +1 more source

Anionic Citrate‐Based 3D‐Printed Scaffolds for Tunable and Sustained Orthobiologic Delivery to Enhance Tissue Regeneration

open access: yesAdvanced Functional Materials, EarlyView.
A potent anionic citric acid‐based 3D‐printed scaffold is developed for the sustained and controlled release of orthobiologics to enhance orthopedic therapeutic efficacy. Comprehensive in vivo studies demonstrated effective bone fusion and high safety at a low dose of BMP‐2 delivered by the system, establishing it as a promising platform for safe ...
Se‐Hwan Lee   +12 more
wiley   +1 more source

PAI‐1 Gene 4G/5G Polymorphism and Risk of Type 2 Diabetes in a Population‐based Sample [PDF]

open access: bronze, 2006
James B. Meigs   +13 more
openalex   +1 more source

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