Results 51 to 60 of about 4,405,974 (289)

Staircase Matrix Modulation for the Switched-Capacitor Modular Multilevel Converter With Sensor-Less Capacitor Voltage Balancing

open access: yesIEEE Open Journal of Power Electronics
Staircase modulation is a switching technique ubiquitous in multilevel inverters utilizing large number of output voltage levels. With tens of levels, the output of a multilevel inverter employing staircase modulation approaches a sinusoid without ...
Rami F. Yehia   +3 more
doaj   +1 more source

Adaptive Model Predictive Controller to Reduce Switching Losses for a Capacitor-Less D-STATCOM

open access: yesIEEE Open Journal of Power Electronics, 2020
In the post-industrial digital-economy, motors powering manufacturing have been replaced by computers powering ecommerce - with significant financial losses attributable to poor power quality (PQ).
Wesam Rohouma   +4 more
doaj   +1 more source

ВПЛИВ ЄМНОСТІ КОНДЕНСАТОРА РОЗРЯДНОГО КОЛА НАПІВПРОВІДНИКОВИХ ЕЛЕКТРОРОЗРЯДНИХ УСТАНОВОК НА ЇХНІ ВИХІДНІ СТРУМИ ОБМЕЖЕНОЇ ТРИВАЛОСТІ

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2021
Based on the analysis of transient processes of oscillatory and aperiodic discharges of the storage capacitor of the electric discharge installation to the load, it is proved that an increase in its capacity always causes an increase in the value of the ...
А.А. Щерба   +2 more
doaj   +1 more source

Spark plasma sintered carbon electrodes for electrical double layer capacitor applications [PDF]

open access: yes, 2011
The spark plasma sintering (SPS) is an emerging process for shaping any type of materials (metals, ceramic, polymers and their composites). The advantage of such a process is to prepare densified ceramic materials in a very short time, while keeping the ...
Estournès, Claude   +7 more
core   +1 more source

Liver organoids: modelling complexity in homeostasis and disease

open access: yesFEBS Letters, EarlyView.
Studying liver in vitro has been challenging because simple 2D cell cultures fail to capture liver's cellular and architectural complexity. To bridge this gap, scientists increasingly use organoids, 3D liver models which better mimic liver composition and function. This review examines recent advances in liver organoid complexity and realism, discusses
Anna M. Dowbaj, Meritxell Huch
wiley   +1 more source

Impact of the surface roughness on the electrical capacitance [PDF]

open access: yes, 2006
A new hybrid approach consists to use the advantages of both systems namely the high geometric aspects of the electrodes of the ultracapacitor and the high dielectric strength of polymer materials used in dielectric capacitors.
Flahaut, Emmanuel   +6 more
core   +1 more source

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Multilevel common‐ground inverter with voltage boosting for PV applications

open access: yesIET Power Electronics, 2021
Nowadays, transformer‐less Photovoltaic‐based grid‐connected inverters are more popular in renewable energy application due to their reduced size, cost, and high efficiency.
Sangeeta Kumari   +4 more
doaj   +1 more source

Revolving-field polygon technique for performance prediction of single-phase induction motors [PDF]

open access: yes, 2003
This paper presents a new analytical technique for improving the performance prediction of single-phase induction motors, especially capacitor motors.
Miller, T.J.E., Rasmussen, C.B.
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

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