Results 151 to 160 of about 243,920 (258)

A Self-Powered Vibration Sensing System for High-Voltage Transmission Lines with Equipotential Connections. [PDF]

Sensors (Basel)
Zhu X, Yang J, Hu C, Wang Z, Liu Z, Liu Z.   +5 more
europepmc   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

Comparing the uplink performance of 3D and 2D antenna models in THz networks in the presence of joint human and wall blockages. [PDF]

PLoS One
Aslam T, Ahmed I, Ali S.
europepmc   +1 more source

Omnidirectional Ultra‐Broadband Cu/TiO2 Metasurface Absorbers for High‐Efficiency Solar Thermal Conversion and Photothermal Plasmon‐Driven Catalysis

Advanced Optical Materials, EarlyView.
Metasurface shows selective solar–thermal energy conversion with high‐activity solar/laser‐driven chemistry. The breakthrough is co‐designing broadband FP‐cavity + plasmonic LSPR/SLR resonances in an ultra‐thin metamaterial so that it not only harvests the most efficient proportion of solar radiation but also suppresses mid and IR emissivity. Moreover,
Samira Mehrabi, HaoYu Zhang, Narendra Chaulagain, Edgar Acosta, Nazir P. Kherani   +4 more
wiley   +1 more source

Bandwidth-efficient and reliable communication in smart grid systems for modern energy networks using Trellis and Turbo Trellis Coded Modulation. [PDF]

Sci Rep
Ghallab R, Shaheen M, Elkorany AS, El-Feshawy SA.   +3 more
europepmc   +1 more source

Nanoporous Scaffold‐Assisted Ligand‐Free CsPbBr3 Quantum Dots for Bright and Ultrapure Green Light‐Emitting Diodes

Advanced Optical Materials, EarlyView.
Networks of confined CsPbBr3 perovskite quantum dots, synthesised within nanoporous silica scaffolds using precursors containing different combinations of butylammonium bromide and crown ether additives, enable electroluminescent devices with 400‐fold enhanced charge injection and transport with respect to control devices, yielding ultrapure green ...
Carlos Romero‐Pérez, Zhongcheng Yuan, Mauricio E. Calvo, Henry J. Snaith, Hernán Míguez   +4 more
wiley   +1 more source

Optimizing direct-modulated laser LiFi systems for hospital environments through simulation-driven analysis of BER, SNR, and Q-factor performance. [PDF]

Open Res Eur
Sharma A, Garg L, A Xuereb P.
europepmc   +1 more source

Two‐Dimensional Isotropic Spatial Differentiation Through Complete Polarization Control

Advanced Optical Materials, EarlyView.
This work enables two‐dimensional isotropic spatial differentiation at planar interfaces over a wide range of incident angles by extending the output polarization from linear to elliptical. The choice of incident angle can be used to balance broader spectral response at low angles and higher edge‐detection efficiency at larger angles.
Doyoon Lee, Minkyung Kim
wiley   +1 more source

Metacrystals: inversely-designed 3D-printed intelligent panels for 6G communications. [PDF]

Nat Commun
Asgari MM, Catrysse PB, Yuan SSA, Wang H, Fan S, Asadchy V.   +5 more
europepmc   +1 more source

Rotating Fluorescent Nanodiamond Assemblies With Focused Laguerre–Gaussian Beams

Advanced Optical Materials, EarlyView.
Self‐assembled fluorescent nanodiamond clusters are optically trapped and driven into controlled two‐dimensional rotation with Laguerre–Gaussian beams. With localized optical excitation, optically detected magnetic resonance spectra are collected at defined points along the orbit in a uniform external magnetic field.
Adam Stewart, Anthony J. El‐Helou, Ying Zhu, David McGloin, David A. Simpson, Peter J. Reece   +5 more
wiley   +1 more source