Results 11 to 20 of about 229 (225)

Control de inversor multinivel modular mmc monofásico de 500W a 120VRMS [PDF]

open access: yes, 2021
Este trabajo de grado se centra en el diseño, elaboración y verificación de un inversor multinivel modular monofásico de 500w a 120 Vrms, debido a la necesidad de implementar un dispositivo para la conversión de energía eléctrica en el semillero de ...
Ramirez Arenas, James   +1 more
core   +1 more source

PWM ZCS DC Motor Drive and DC Power Supply [PDF]

open access: yes, 2011
Following the extension and increase in capacity of power electronic elements, many convertors with special applications have been designed. Convertors such as rectifiers, AC and DC power supplies, AC and DC drivers and so on. At present, optimization of
Montazeri, Bardia; Department of Electrical Engineering, Islamic Azad University, Iran
core   +2 more sources

Convertisseurs DC-DC piézoélectrique avec stockage provisoire d’énergie sous forme mécanique

open access: yes, 2019
The increasing demand for power convertors in various application fields implies specific constraints and specific technological solutions. In this context, working with piezoelectric material constitutes an excellent alternative of classical inductor ...
Pollet, Benjamin
core   +3 more sources

Dynamic modeling of DC-DC converters with peak current control in double-stage photovoltaic grid-connected inverters [PDF]

open access: yes, 2011
In photovoltaic (PV) double-stage grid-connected inverters a high-frequency DC-DC isolation and voltage step-up stage is commonly used between the panel and the grid-connected inverter.
González-Medina, Raúl   +7 more
core   +1 more source

Resonance tuning in linear alternator drives via direct-current amplitude modulation

open access: yes, 2018
Reciprocating Linear Alternators (LAs) are used in many energy harvesting technologies working with pressure waves, such as sea wave energy convertors, Stirling and Thermoacoustic engines.
Zhang M.   +2 more
core   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

open access: yesFEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho   +3 more
wiley   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

An adaptive synchronous rectifier driving strategy for unregulated LLC resonant converter

open access: yesIET Power Electronics
LLC resonant converters are widely adopted in many different industrial applications due to their high efficiency operation. To further improve LLC resonant converters' efficiency, the secondary unregulated diode rectifier is replaced by the synchronous ...
Yuqi Wei, Ziang Li, Jinjun Liu
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Investigation of current balance methodologies for inductive power transfer coupler with multiple branches

open access: yesIET Power Electronics
In the inductive power transfer (IPT) system, using multiple coil branches instead of a whole large coil can effectively solve the thickness problem and save space.
Mengna Luo, Zhicong Huang
doaj   +1 more source

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