Results 51 to 60 of about 532,465 (286)

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

A new soft‐switching multi‐input quasi‐Z‐source converter for hybrid sources systems

open access: yesIET Renewable Power Generation, 2021
This study focuses on a zero voltage transition multi‐input quasi‐Z‐source converter (qZSC). This topology can be used for input sources with different voltages and currents to provide a constant output voltage.
Amir Torki Harchegani   +2 more
doaj   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

An Interleaved Step-up DC-DC Converter with Lossless Snubber

open access: yesMajlesi Journal of Electrical Engineering
In this paper, an interleaved step-up converter with two lossless snubbers is introduced, where the snubbers ensure zero-current switching for the main switches, eliminating the need for extra switches.
Arman Hovsep   +3 more
doaj   +1 more source

Boost Converter with Main Switch Possessing ZVT and ZCT and Auxiliary Switch Possessing ZCS

open access: yesEnergies, 2023
In this paper, a zero-voltage and zero-current transition (ZVZCT) boost converter is presented with a small number of auxiliary components, such as a resonant capacitor, a resonant inductor and an auxiliary power switch, to produce a main power switch ...
Kuo-Ing Hwu   +2 more
doaj   +1 more source

A Fault-Tolerant T-Type Multilevel Inverter Topology with Soft-Switching Capability Based on Si and SiC Hybrid Phase Legs [PDF]

open access: yes, 2016
The performance of a novel three-phase four-leg fault-tolerant T-Type inverter topology is presented in this paper, which significantly improves the inverter\u27s fault-tolerant capability regarding device switch faults.
Demerdash, Nabeel   +4 more
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

open access: yesAdvanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong   +3 more
wiley   +1 more source

A control method for interleaved Boost PFC converter

open access: yesDianzi Jishu Yingyong, 2019
In order to solve the problem of complexity of zero-crossing detection and distortion of input current waveform, a novel control method is proposed for interleaved Boost PFC converter operates in critical conduction mode.
Lin Anna, Xie Yunxiang
doaj   +1 more source

Noise and Bistabilities in Quantum Shuttles

open access: yes, 2005
We present a study of current fluctuations in two models proposed as quantum shuttles. Based on a numerical evaluation of the first three cumulants of the full counting statistics we have recently shown that a giant enhancement of the zero-frequency ...
Flindt, Christian   +2 more
core   +1 more source

Spontaneous supercurrent induced by ferromagnetic pi-junctions [PDF]

open access: yes, 2003
We present magnetization measurements of mesoscopic superconducting niobium loops containing a ferromagnetic (PdNi) pi-junction. The loops are prepared on top of the active area of a micro Hall-sensor based on high mobility GaAs/AlGaAs heterostructures ...
A. Barone   +14 more
core   +2 more sources

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