Results 91 to 100 of about 1,862,767 (300)

Design of adaptive speed controllers for matrix‐converter‐based interior permanent magnet synchronous motor drive systems

open access: yesThe Journal of Engineering
Interior permanent magnet synchronous motors (IPMSMs) which are driven by matrix converters have many advantages, including one‐stage power conversion, high efficiency, bidirectional power transfer, near unity input power factor, and low input current ...
Tian‐Hua Liu, Shao‐Ming Wang
doaj   +1 more source

A Modular AC-DC Power Converter with Zero Voltage Transition for Electric Vehicles

open access: yesEnergies, 2017
A study of the fundamental of operation of a three-phase AC-DC power converter that uses Zero-Voltage Transition (ZVT) together with Space Vector Pulse Width Modulation (SVPWM) is presented. The converter is basically an active rectifier divided into two
Jazmin Ramirez-Hernandez   +2 more
doaj   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

open access: yesFEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain   +11 more
wiley   +1 more source

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Direct Torque Control for a Matrix Converter Based on Induction Motor drive Systems

open access: yes, 2012
[[abstract]]The paper proposes a direct torque control (DTC) scheme for a matrix-converter-fed induction motor drive system. DTC is a high performance motor control scheme with fast torque and flux responses.
Chen, Der-Fa; Liao, Chin-Wen; Yao, Kai-chao
core  

A zero switching loss matrix converter

open access: yes, 1993
[[abstract]]A low loss bidirectional switch set is proposed for a matrix power converter. The proposed switch is able to turn on at zero current and turn off at zero voltage to achieve almost zero loss and soft switching.
Shieh, J.-J., Chen, T.-C., Pan, C.-T.
core   +1 more source

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

open access: yesFEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi   +6 more
wiley   +1 more source

Improvement of space vector modulation strategy of two-stage matrix converter

open access: yesGong-kuang zidonghua, 2013
In view of problems that space vector pulse width modulation strategy of two-stage matrix converter has high control complexity and cannot adjust input power factor of the two-stage matrix converter, a scheme of indirect space vector modulation strategy ...
DANG Cun-lu   +2 more
doaj  

Troubleshooting of Matrix Frequency Converter Conducted and Radiated Emissions

open access: yesElectrical, Control and Communication Engineering, 2010
Matrix converter inherently exhibits sinusoidal input current waveforms and has less stressful output voltage waveforms, but it is causing problems with conducted and radiated emissions.
Gundars Asmanis   +2 more
doaj   +1 more source

Hydrogel platforms for 3D cardiac tissue engineering and fibrotic disease modelling

open access: yesFEBS Open Bio, EarlyView.
Hydrogel‐based cardiac tissue models are advancing our understanding of heart health and disease. By incorporating electrical conductivity, aligned structures, and tunable mechanical properties, these platforms better replicate the complex environment of native heart tissue.
Harrison Porritt   +2 more
wiley   +1 more source

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