Results 101 to 110 of about 4,626 (306)

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Dual-Frequency Current Inverter (Options)

open access: yes, 2022
Изобретение – двухчастотный инвертор тока – относится к области электротехники и металлургии, а именно к системам электропитания индукционных тигельных печей.
Koptiakov, A. S.   +7 more
core  

A Survey on Topologies and Modulation Strategies of Dual Inverters in Industrial Applications

open access: yesEng
Inverters have played a fundamental role in the development of energy conversion, especially in industrial applications. Over time, new architectures have been developed to optimize performance and reduce energy losses.
Erick Zain Adame Najera   +5 more
doaj   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

open access: yesAdvanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite   +5 more
wiley   +1 more source

An inverted FL antenna for dual-frequency operation

open access: yesIEEE Transactions on Antennas and Propagation, 2005
An inverted FL antenna (InvFLA) is analyzed to obtain dual-frequency operation at 2.45 and 5.2 GHz (wireless LAN system frequencies). The InvFLA is composed of inverted FL elements, a parasitic element, and a ground plate, where these lie in the same plane, i.e., the structure is a card-type structure having a co-planar ground plate. The antenna height
NAKANO Hisamatsu   +3 more
openaire   +1 more source

Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells

open access: yesAdvanced Functional Materials, EarlyView.
Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov   +10 more
wiley   +1 more source

Modeling of Dual Inverter-Fed Split-Phase Interior Permanent Magnet Synchronous Machine for Electric Vehicle Traction Application

open access: yes
The quest for efficient, stable, and reliable operation of power devices for electric vehicle traction has intensified over the years for improved performance.
Izuchukwu Nnanna Eze   +2 more
core   +1 more source

Effect of a CMV elimination PWM on stator current ripple in a dual two-level inverter fed induction motor drive

open access: yes, 2012
Dual two-level inverter employing an open-end winding induction motor (OEWIM) drive can synthesize three-level voltage space phasor. PWM switching methods for the dual two-level inverter are presented in this paper that offer dual advantage of ...
S. Srinivas   +3 more
core   +1 more source

Ferroelectricity in Antiferromagnetic Wurtzite Nitrides

open access: yesAdvanced Functional Materials, EarlyView.
We establish MnSiN2${\rm MnSiN}_2$ and MnGeN2${\rm MnGeN}_2$ as aristotypes of a new multiferroic wurtzite family that simultaneously exhibits ferroelectricity and antiferromagnetism with altermagnetic spin splitting. By strategically substituting alkaline‐earth metals, we predict new materials with coexisting switchable polarization, spin texture, and
Steven M. Baksa   +3 more
wiley   +1 more source

Microcomputer Controlled Dual Slope Delta Modulated Three Phase Inverter

open access: yes, 2001
Experiments have been carried out by online microcomputer operation of the inverter to verify the claim of improved performance of delta modulated inverter by dual slope and dual slope-variable window width operation of the delta ...
Ramdan Razali,, Ramdan , Razali
core  

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