Results 61 to 70 of about 492,333 (290)

Differential Probe Fed Liquid Crystal-Based Frequency Tunable Circular Ring Patch Antenna

open access: yesIEEE Access, 2018
A differential probe-fed liquid crystal (LC)-based frequency tunable circular-ring patch antenna is presented. Besides, cavity model is extended to analyze the LC-based antenna for the differential operation.
Guanghui Xu   +5 more
doaj   +1 more source

Multi-Fidelity Design Optimisation of a Solenoid-Driven Linear Compressor

open access: yesActuators, 2020
Improved management and impermeability of refrigerants is a leading solution to reverse global warming. Therefore, crank-driven reciprocating refrigerator compressors are gradually replaced by more efficient, oil-free and hermetic linear compressors ...
Jarl Beckers   +5 more
doaj   +1 more source

Research and innovation in power electronics systems applied to energy management [PDF]

open access: yes, 2008
The Power Electronics Systems Group (GSEP) at University Carlos III de Madrid (Spain) offers its wide experience and background in consultancy, R&D projects with private and public funding and pre-industrial prototype building in four main topics: energy
Barrado Bautista, Andrés
core   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Non Thermal‐Driven Photocatalytic Ammonia Decomposition at Near‐Room Temperature on a Plasmonic Nanocone Array

open access: yesAdvanced Functional Materials, EarlyView.
Plasmonic photocatalytic ammonia decomposition occurs at near‐room temperature on a plasmonic Au nanocone array under visible light illumination. The nanostructure efficiently harnesses plasmonic modes, leading to increased reaction rates upon plasmon decay.
Thanh‐Lam Bui   +17 more
wiley   +1 more source

Design of a six-phase asymmetrical permanent magnet synchronous generator for wind energy applications

open access: yesThe Journal of Engineering, 2019
The electromagnetic design of a six-phase permanent magnet synchronous generator (PMSG) for application in medium/high-speed wind energy conversion systems (WECS) is studied in this work.
Pedro F.C. Gonçalves   +3 more
doaj   +1 more source

MIDAS: Automated Approach to Design Microwave Integrated Inductors and Transformers on Silicon [PDF]

open access: yes, 2013
The design of modern radiofrequency integrated circuits on silicon operating at microwave and millimeter-waves requires the integration of several spiral inductors and transformers that are not commonly available in the process design-kits of the ...
Alimenti, F.   +4 more
core   +1 more source

A new design of nanocrystalline silicon optical devices based on 3-dimensional photonic crystal structures

open access: yes, 2005
We propose a new design of nanocrystalline silicon optical devices which are based on control of electromagnetic fields, electronic states, as well as the phonon dispersion of size-controlled silicon quantum ...
Chong, H. -J.   +8 more
core   +1 more source

Design of interfering mobile device in the band Wi-Fi with magnetron [PDF]

open access: yes, 2018
The aim of this article is to design an interfering mobile device with a magnetron for the interference in Wi-fi signal in the band 2.4-2.5GHz. Propulsion of the interfering mobile device will be implemented using system of the stepper motor, which will ...
Leuchter, Jan, Quang, Huy Dong
core   +2 more sources

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

open access: yesAdvanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen   +4 more
wiley   +1 more source

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