Results 71 to 80 of about 243,917 (303)
Very-High-Frequency Resonant Boost Converters [PDF]
IEEE Transactions on Power Electronics, 2007 This paper presents a resonant boost topology suitable for very-high-frequency (VHF, 30-300 MHz) DC-DC power conversion. The proposed design features low device voltage stress, high efficiency over a wide load range, and excellent transient performance. Two experimental prototypes have been built and evaluated.
Perreault, David J. +4 more
openaire +2 more sources
Comparative aspects in control strategies for hybrid DC-DC converters [PDF]
, 2016 Linear-switching hybrid DC/DC converters consist of a voltage linear regulator (classic NPN or nMOS topologies and LDO) connected in parallel with a switching DC/DC converter.
Cosp Vilella, Jordi +1 more
core +3 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS 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
FEBS 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
Power frequency converter build on transistors [PDF]
, 2018 В данной статье рассматривается силовой преобразователь частоты на IGBT-транзисторах, который состоит из двух силовых транзисторов, что повышает КПД и снижает стоимость преобразователя частоты.
Isembergenov, N. T. +1 more
core +1 more source
Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation
FEBS Letters, EarlyView.Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz +11 more
wiley +1 more source
Development of Mine-used Feedback Type Frequency Converter with Flameproof and Intrinsic Safety
Gong-kuang zidonghua, 2012 In view of problems that two-quadrant frequency converter can not feedback energy and design selection of braking resistant in two-quadrant frequency converter + resistant braking unit may not match with field conditions, a mine-used feedback type ...
YANG Wei-yi
doaj
A maximum power point tracking for a photovoltaic system based on optimum sinusoidal modulated control pulses [PDF]
, 2014 Photovoltaic systems have grown rapidly in the last few decades. This growth has enhanced research about this technology, focusing on reducing cost and improving efficiency. Maximum power point tracking (MPPT), which increases the overall efficiency of a
Alqarni, M, Darwish, MK
core +1 more source
FEBS Letters, EarlyView.Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas +3 more
wiley +1 more source
Design of vibration isolation parameters of converter for high-speed double-deck EMU trains
机车电传动, 2022 A finite element model of the double-deck EMU trains including the on-board traction converter was established, and the main low-order elastic modes of the car body were calculated and analyzed separately when the converter equipment adopted rigid ...
TAO Guidong, SUN Weiguang
doaj