Results 91 to 100 of about 9,888,963 (300)
Multitrack Power Factor Correction Architecture
, 2019 Single-phase universal-input ac-dc converters are needed in a wide range of applications. This paper presents a novel power factor correction (PFC) architecture that can achieve high-power density and high efficiency for grid-interface power electronics.
Chen, Minjie, Perreault, David J.
openaire +3 more sources
FEBS Open Bio, EarlyView.We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen +5 more
wiley +1 more source
Single-switch AC/DC converter with power factor correction
, 1997 A single-switch, one-stage power Factor correction convener with output electrical isolation is proposed. To relieve the voltage spike caused bq the leakage inductance of the: power transformer, two bulk storage capacitors are used.
Wei, H. +6 more
core +1 more source
Development of an AC-DC buck power factor correction [PDF]
, 2013 Generally all devise used in industrial, commercial and residential applications need to undergo rectification for their proper functioning and operation.
Ibrahim, Muhammad Iskandar
core +1 more source
Heterotropic regulation and negative homotropic cooperativity
FEBS Open Bio, EarlyView.We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea +5 more
wiley +1 more source
Review of Converter Circuits with Power Factor Correction
TechnologiesThis article reviews converter circuits with power factor correction considering issues that arise in implementing such circuits. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) procedure are employed for the review.
Angel Quiroga +2 more
doaj +1 more source
Acoustic characterization of an outdoor test environment for determining sound power levels of hand-held machines [PDF]
Ciência Rural: Sound power is a fundamental parameter for characterizing noise sources. This report described the methodology applied to characterize an outdoor environment for determining the sound power levels of portable hand-held machines based on sound pressure ...
Érika Jamily Alves Nunes +4 more
doaj +2 more sources
Comparative assessment of crystallographic and cryo‐EM models in the Protein Data Bank
FEBS Open Bio, EarlyView.Raw data obtained by X‐ray crystallography or cryo‐EM result in experimental maps, ultimately fitted by atomic models. Although the physical principles are different, the final results can be viewed, compared, and evaluated in the same way. With cryogenic electron microscopy (cryo‐EM) on track to surpass X‐ray crystallography as the preferred method ...
Alexander Wlodawer +7 more
wiley +1 more source
A bidirectional ac-dc power converter with power factor correction
, 2000 This paper presents new operation and performance of a thyristor-based ac-dc current-controlled boost-type converter that allows bidirectional power handling capability and provides input power factor correction and a near-sinusoidal input current ...
Yip, SC, Hui, SY, Chung, HSH
core +1 more source
Enhanced performance of substation dynamics during large induction motor starting using SVC
Alexandria Engineering Journal, 2018 Static Var Compensators (SVC) have been widely used to separately improve each of voltage variation performance and steady state power factor of industrial substations. However, these two functions are interdependent, power factor improvement tends to do
Ahmed S. Omran +2 more
doaj +1 more source