Results 31 to 40 of about 1,056 (280)

Fast and accurate estimation of multifrequency signals with noise and harmonics in control of photovoltaic systems

open access: yesThe Journal of Engineering, 2019
Photovoltaic systems are the important part of the energy market in many countries around the world. Such systems contain several parts and one of them is the inverter to produce the AC signal.
Dariusz Kania, Jozef Borkowski
doaj   +1 more source

Development of mobile electrical vehicle for EMI applications

open access: yesThe Journal of Engineering, 2019
This paper presents the relevancy, design, and test results of a mobile electrical vehicle for the applications of testing and providing electromagnetic interferences in Wi-Fi signal in the band 2.4–2.5 GHz.
Jan Leuchter   +2 more
doaj   +1 more source

Invertor system stability analysis

open access: yesIFAC Proceedings Volumes, 1974
Summary A single phase bridge inverter system is analyzed. It is assumed that the inverter is used as a closed loop voltage regulated. source of ac power. The inverter output waveform is pulse width modulated to control the output voltage which is supplied to a general linear filter.
K.Y. Nikravesh, R.G. Hoft
openaire   +1 more source

Comprehensive study on space-vector-PWM and carrier-based-PWM correlation in multilevel invertors

open access: yes, 2006
The paper presents a theoretical analysis of the correlation between carrier-based unipolar PWM (CPWM) and space-vector PWM (SVPWM) For the entire modulation-index range of multilevel invertors, including overmodulation.
Youn, Myung Joong, Nho, NV
core   +1 more source

Optimal configuration of battery energy storage systems using for rooftop residential photovoltaic to improve voltage profile of distributed network

open access: yesThe Journal of Engineering, 2019
Due to the power mismatches between residential load and rooftop residential photovoltaic (PV) generation, voltage profile of low-voltage distribution system (LVDN) may exceed the allowable limit during the daytime and is well below the lower limit at ...
Jinrui Tang   +6 more
doaj   +1 more source

Multi-physics design optimisation of a GaN-based integrated modular motor drive system

open access: yesThe Journal of Engineering, 2019
Here, a multi-physics approach is presented for the design optimisation of an integrated modular motor drive (IMMD). The system is composed of a modular permanent magnet synchronous motor (PMSM) and a GaN-based modular motor drive power stage.
Mesut Uğur, Ozan Keysan
doaj   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Matrix converter based virtual synchronous generation technology

open access: yesThe Journal of Engineering, 2019
Energy is an important driving force for social development. The shortage of natural resources urgently promotes the research of energy and the development of related technologies.
Chuyun Li   +3 more
doaj   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

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