Results 61 to 70 of about 993,230 (345)

An Inkjet‐Printed Platinum‐Based Temperature Sensing Element on Polyimide Substrates

open access: yesAdvanced Engineering Materials, EarlyView.
An inkjet‐printed, meander‐structured, nanoparticle platinum‐based resistive temperature sensors on polyimide substrates are demonstrated as proof‐of‐concept. Optimized sintering at 250°C enables stable conductive structures. The Pt100‐ and Pt1000‐type sensors exhibit linear resistance–temperature characteristics with stable TCR in the 20°C–80°C range,
Shawon Alam   +6 more
wiley   +1 more source

Radio: Radio ONU inicia servicio digital de noticias

open access: yesChasqui, 2007
Relata lo que ha sido la trayectoria de la Radio de la ONU fundada en 1946.
Laura Kwiatkowski
doaj   +1 more source

Radio Marca: historia empresarial del primer proyecto de radio especializada en temática deportiva en España

open access: yesAustral Comunicación, 2022
La implantación de Radio Marca en el panorama radiofónico español a comienzos del siglo XXI supuso un hito por ser la primera radio especializada de temática deportiva en España.
Alfonso Muerza, Avelino Amoedo-Casais
doaj   +1 more source

Radio Jets in Galaxies with Actively Accreting Black Holes: new insights from the SDSS

open access: yes, 2007
The majority of nearby radio-loud AGN are found in massive, old elliptical galaxies with weak emission lines. At high redshifts,however, most known radio AGN have strong emission lines.
Allen   +74 more
core   +1 more source

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

open access: yesAdvanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De   +3 more
wiley   +1 more source

Optimization of the Antenna Array with Cosequences Pattern

open access: yesИзвестия высших учебных заведений России: Радиоэлектроника, 2016
The method of partial directional diagrams (PDD) synthesized vertical omnidirectional in azimuth plane antenna arrays (AR) with cosequences PDD form in the vertical plane. The AR optimum height on the criterion of maximum gain is determinated.
A. D. Frantsuzov
doaj  

Design and analysis antennas of transverse polarization on the dielectric waveguide

open access: yesEURASIP Journal on Wireless Communications and Networking
This paper addresses the issue of constructing millimeter band antennas using dielectric waveguide structures. A new type of linear antenna, incorporating metal pins on the side walls of the grooved dielectric waveguide, is proposed for generating ...
Mohamed N. Shaaban   +2 more
doaj   +1 more source

Digital radio switchover: the UK experience [PDF]

open access: yes, 2011
The UK remains one of the world’s leading countries in the development of digital radio. However, it is unclear when radio will migrate from analogue to digital broadcasting in a similar way to television, which is progressively switching to digital ...
Lax, SE
core   +1 more source

Multimodal Mechanical Testing of Additively Manufactured Ti6Al4V Lattice Structures: Compression, Bending, and Fatigue

open access: yesAdvanced Engineering Materials, EarlyView.
In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart   +3 more
wiley   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

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