Results 51 to 60 of about 639,513 (288)
Advanced Engineering Materials, EarlyView.This perspective reframes additive manufacturing for electrical machines as a qualification‐limited materials and architecture design problem. It links process–structure–property–performance relationships to magnetic, conducting, dielectric, and thermal property windows, highlighting where AM can enable segmented magnetic circuits, permanent magnet ...
Dénes Fodor, Loránd Szabó
wiley +1 more source
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti +16 more
wiley +1 more source
Gridded circular patch antennas [PDF]
, 1999 The performance of circular microstrip patch antennas is presented where the conducting patch and ground plane are constructed from a grid. Improved cross polarization, mode suppression, and band-width are possible, but are accompanied by lower gain and ...
Langley, Richard J. +8 more
core +1 more source
Two-Dimensional Glide-Symmetric Dielectric Structures for Planar Graded-Index Lens Antennas
, 2021 In this letter, we propose and study a 2-D glide-symmetric dielectric periodic structure. We demonstrate that glide symmetry broadens the bandwidth of operation and achieves lower effective refractive indices when compared to non-glide configurations ...
Pizarro, Francisco, +5 more
core +1 more source
Ultra-Wideband Dielectric Lens Antennas for Beamsteering Systems
International Journal of Antennas and Propagation, 2019 This paper presents a high-directivity ultra-wideband beamsteering antenna array. An innovative beamsteering system based on hemispherical dielectric lenses fed by a set of different printed antennas is proposed. Diversity of signals in different spatial
Renan Alves dos Santos +4 more
doaj +1 more source
Scientific Reports, 2021 The design of antennas for terahertz systems remains a significant challenge. These antennas must provide very high gain to overcome significant free-space path loss, which limits their ability to broadcast or receive a beam over a wide angular range. To
Yasith Amarasinghe +6 more
doaj +1 more source
Fusogenic RNA Nanomodules for Fusion‐Mediated and Multiplexed siRNA Delivery
Advanced Functional Materials, EarlyView.A fusogenic lipid‐layered RNA nanomodules (L‐CRAMs) enable high‐capacity and long‐lasting siRNA delivery through membrane fusion. These nanomodules carry exceptionally large siRNA payloads, avoid conventional endosomal uptake, and release multiple functional siRNAs through Dicer‐mediated processing.
Sunghyun Moon +5 more
wiley +1 more source
Shaped Lens Antenna for 5G Mobile With Wide Angle Multi-Beam and Optimum Feed Position
IEEE AccessMillimeter wave operation in 5G base stations necessitates small cell size and advanced multi-beam capabilities. At millimeter waves, base station antennas must be highly compact, making dielectric lens antennas with excellent multi-beam radiation ...
Farizah Ansarudin +8 more
doaj +1 more source
Reconfigurable biconcave lens antenna based on plasma technology
Scientific Reports, 2023 This article is focused on the application of plasma technology for the development of microwave lens antennas with electronically controllable radiation gain.
Fatemeh Sadeghikia +4 more
doaj +1 more source