Results 111 to 120 of about 1,010,821 (306)
Ring-slot-coupled microstrip patch antenna for circular polarization
, 2012 [[abstract]]A new design of aperture-coupled microstrip antennas for circular polarization (CP) is presented. The CP microstrip antenna is excited by using a series microstrip-line-feed configuration through the coupling of a ring slot in the ground. The
Lee, Yi-Lung; Chen, Tsair-Rong; Row, Jeen-Sheen
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Advanced Functional Materials, EarlyView.This review establishes structure‐property‐mechanism relationships across six modification strategies for V‐based oxide water‐splitting electrocatalysts: lattice engineering, heteroatom doping, interface engineering, carbon‐based hybridization, morphology engineering, and surface reconstruction and pre‐catalyst design, where dissolution is reframed as ...
Youness El Issmaeli +4 more
wiley +1 more source
Circular on Deployments, Secondments, Leave of Absence and Transfers in The Public Service [PDF]
Reference is made to the self-explanatory Circular Ref. PSC/ADM/13(60) dated 20th.February 2025 on the above subject (copy attached). In the above referenced Circular, the Public Service Commission (PSC) notes that there have been irregular deployments,
The National Treasury and Economic Planning
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Advanced Functional Materials, EarlyView.Rapid microwave plasma torch engineering tunes crystal phases, carbon graphitization and oxygen‐vacancy defects in HfO2/C@C core‐shell fibrous membranes. Synergistic multi‐loss effects optimize impedance matching to deliver −65.75 dB reflection loss and a 7.37 GHz effective bandwidth for flexible electromagnetic wave absorption.
Qichao Ding +14 more
wiley +1 more source
Circular Antenna Array With Beam Direction and Polarization Control
IEEE AccessIn this paper, a circular antenna array is presented for indoor communication. The antenna array consists of 8 dual-polarization antenna elements. At first, the circular antenna array is fed identically, an azimuthal omnidirectional pattern is obtained ...
Pei-Yu Li +4 more
doaj +1 more source
Analisys of Conformal Antennas for Avionics Applications [PDF]
, 2007 Conformal antennas might have an important impact on communication and navigation applications on aircraft, ships and other vehicles. This thesis work presents a general study on conformal antennas and their potential application on aircraft structures ...
Redondo Gonzalez, Maria del Carmen
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Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites
Advanced Functional Materials, EarlyView.Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto +4 more
wiley +1 more source
Demo 24-07 Polarization by Scattering
, 2001 Light is polarized when it scatters from materials like air or water. This demonstration shows some of the properties of this polarization, using the apparatus of Figure 1, in which the light beam passes through a water tank into which a small amount ...
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Advanced Functional Materials, EarlyView.An Alhagi maurorum inspired hierarchical composite membrane (NFCu) was developed by integrating heavy metal remediation and solar‐driven interfacial evaporation in a single platform. Beyond the photothermal effect, a localized photocatalytic process is realized on the CuO surface, deepening the mechanistic understanding of light–matter–water ...
Yuqiong He +9 more
wiley +1 more source
MicromachinesTo enhance the anti-jamming performance and operational reliability of drones, this paper presents the design, fabrication, and measurement of a novel polarization-reconfigurable metasurface antenna that meets these demands.
Shiquan Zhang +3 more
doaj +1 more source