Results 171 to 180 of about 5,014,271 (379)

Multifunctional reconfigurable reflective metasurface for polarization conversion

open access: yesScientific Reports
Multifunctional and reconfigurable metasurfaces are increasingly important as they facilitate the dynamic manipulation of electromagnetic waves, enabling adaptive responses to varying communication requirements and environmental conditions—a ...
K. Neema, Deepti Das Krishna
doaj   +1 more source

Application of adaptive antenna techniques to future commercial satellite communications. Executive summary [PDF]

open access: yes
The purpose of this contract was to identify the application of adaptive antenna technique in future operational commercial satellite communication systems and to quantify potential benefits. The contract consisted of two major subtasks.
Ersoy, L., Lee, E. A., Matthews, E. W.
core   +1 more source

Emergent Motility of Self‐Organized Particle‐Giant Unilamellar Vesicle Assembly

open access: yesAdvanced Materials, EarlyView.
Giant unilamellar vesicles (GUVs), when combined with silica particles under alternating electric fields, spontaneously self‐assemble into motile structures. Asymmetric particle decoration induces fluid flows that propel the assemblies, enabling persistent motion and reversible control.
Selcan Karaz   +5 more
wiley   +1 more source

Liquid crystal-based reconfigurable antenna for 5G millimeter-wave

open access: yesScientific Reports
This paper proposed a frequency reconfigurable antenna that utilizes a multilayer structure of liquid crystal (LC) material. This antenna design incorporates a three-layer stacked structure to create an LC-injected cavity.
Peng Chen   +4 more
doaj   +1 more source

Compact Frequency-Agile and Mode-Reconfigurable Antenna for C-Band, Sub-6-GHz-5G, and ISM Applications [PDF]

open access: gold
Esraa Mousa Ali   +4 more
openalex   +1 more source

Directional Flow of Confined Polaritons in CrSBr

open access: yesAdvanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak   +10 more
wiley   +1 more source

Dynamic, Reconfigurable, and Hierarchical Biosynthetic Composites via Collagen Self‐Assembly within Highly Crowded Microgel Pastes

open access: yesAdvanced Materials, EarlyView.
A new approach to extracellular matrix‐mimetic, hierarchical biomaterials is presented. Soft gels composed of overpacked hydrogel microparticle arrays present a biomolecularly crowded environment permissive to the self‐assembly of collagen networks.
Elif Narbay   +11 more
wiley   +1 more source

Observation of Dislocation Bound States and Skin Effects in Non‐Hermitian Chern Insulators

open access: yesAdvanced Materials, EarlyView.
Experimental observation of the dislocation‐induced bound states and skin effects is demonstrated in a line‐gap non‐Hermitian acoustic lattice. By utilizing active meta‐atoms to measure the full complex spectrum and biorthogonal eigenstates, the study reveals the exceptional‐point‐driven melting of defect modes.
Jia‐Xin Zhong, Bitan Roy, Yun Jing
wiley   +1 more source

Recent Advances in Collective Behaviors of Micro/Nanomotor Swarms

open access: yesAdvanced Materials, EarlyView.
This review describes the driving forces behind collective motion, explores the self‐organization of micro/nano swarms across zero‐dimensional (0D), one‐dimensional (1D), two‐dimensional (2D), and three‐dimensional (3D) spaces, and highlights their potential in drug delivery, environmental monitoring, and smart devices.
Siwen Sun   +4 more
wiley   +1 more source

Path Loss Modeling and Measurements for Reconfigurable Intelligent Surfaces in the Millimeter-Wave Frequency Band [PDF]

open access: green, 2022
Wankai Tang   +8 more
openalex   +1 more source

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