Results 21 to 30 of about 581 (271)

A 19‐Level Single Voltage Source Inverter With Reduced Blocking Voltage on Switches

open access: yesIET Power Electronics
This paper presents a novel high‐performance and dependable step‐up multi‐level inverter topology designed specifically for photovoltaic applications. A gain factor of nine is attained, coupled with automatic self‐voltage balancing of capacitors and the ...
Fatemeh Esmaeili, Hamid Reza Koofigar
doaj   +1 more source

Leukemia and Exposure to Potential Benzene Sources in Children From the Mexico City Metropolitan Area, 2010–2021: A Geospatial Analysis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Leukemia is the most common childhood cancer in Mexico, and acute lymphoblastic leukemia (ALL) is the most frequent subtype. Exposure to high concentrations of benzene has been associated with ALL incidence, particularly in urban areas. This study evaluated the relationship between distance to benzene emission sources and the number
Orlando Rivera Zurita   +5 more
wiley   +1 more source

Modelling, control design, and analysis of the inner control's loops intended for single‐phase voltage‐controlled inverter‐based microgrid

open access: yesIET Generation, Transmission & Distribution
In voltage‐controlled voltage source inverters (VSIs)‐based microgrids (MGs), the inner control is of prime interest task for guaranteeing safe and stable operation.
Camelia Ait Hammouda   +6 more
doaj   +1 more source

Reliability evaluation of MMC system considering working conditions

open access: yesThe Journal of Engineering, 2018
The reliability is a key issue of the high-voltage high-power modular multilevel converter (MMC) system due to the usage of fragile insulated gate bipolar transistor (IGBT) modules. In this study, it is proposed that the reliability of the MMC system can
Tao Zheng   +3 more
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

High energy and high intensity electron and X-ray beams by pyroelectric effect [PDF]

open access: yes, 2012
The production of x-rays has been a useful technique in many areas of science, medicine and various industries for over 100 years. Over this time various new methods of generating x-rays have been produced, allowing improved performance in existing ...
Hockley, Matthew
core  

An auto-reclosing scheme for DC circuit breaker in VSC-HVDC transmission system

open access: yesThe Journal of Engineering, 2019
When a DC line fault happens, the converter will be blocked instantly. This leads to an interruption of power transmission and influences the stability of DC and AC systems.
Yuan Wang   +3 more
doaj   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Mercury-Arc Convertors and Cognate Problems [PDF]

open access: yes, 1939
In this paper in addition to certain novel investigations the efficiency, power factor and voltage regulation of mercury-arc convertors are discussed and test results on a 6-kW set are given. These standard results are needed fro reference, etc.
Fairley, Eric S
core  

Optimal control set expansion method for three‐phase voltage source converter with slip window selection and online parameter modification

open access: yesIET Power Electronics
Finite control set model predictive control (FCS‐MPC) has been widely used in the control of three‐phase voltage source converter (VSC), but its control performance declines sharply at low sampling frequencies.
Linqiang Hu   +3 more
doaj   +1 more source

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