Results 51 to 60 of about 9,346,198 (349)

An excellent soft magnetic Fe/Fe3O4-FeSiAl composite with high permeability and low core loss

open access: yesResults in Physics, 2019
It is well know that the high temperature annealing can improve the permeability and reduce the hysteresis loss of soft magnetic composites (SMCs), but the eddy current loss would be accordingly increased. Thus, developing SMCs with high permeability and
Zhenguo Hou   +4 more
semanticscholar   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Enhancing Performance of Permanent Magnet Motor Drives through Equivalent Circuit Models Considering Core Loss

open access: yesEnergies
Permanent magnet motors (PMMs) have emerged as key components in numerous industrial applications due to their high efficiency, compact size, and robust performance characteristics.
Youguang Guo   +4 more
doaj   +1 more source

Heat-Treatment Optimizing Study on Soft Magnetic Properties of FeCuNbSiB Nanocrystalline Alloys

open access: yesZhongguo dianli, 2022
This job was focused on the annealing technique of large-size nanocrystalline core with height of 50 mm, to meet the low core loss requirement of large-size nanocrystalline core used in large-capacity high-frequency transformer.
Bangshao DONG   +6 more
doaj   +1 more source

The Impact of Progenitor Mass Loss on the Dynamical and Spectral Evolution of Supernova Remnants [PDF]

open access: yes, 2017
There is now substantial evidence that the progenitors of some core-collapse supernovae undergo enhanced or extreme mass loss prior to explosion.
Badenes, Carles   +6 more
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Core Loss Calculation of Symmetric Trapezoidal Magnetic Flux Density Waveform

open access: yesIEEE Open Journal of Power Electronics, 2021
Existing empiricalcore loss models for symmetric trapezoidal flux waveform (TzFW) still suffer some issues such as the inaccuracy and the complexity. These issues are mainly due to the lack of an accurate model of the relaxation loss generated during the
Sobhi Barg, Kent Bertilsson
doaj   +1 more source

Core loss separation model under square voltage considering DC bias excitation

open access: yes, 2020
There are many magnetic inductors, such as filter inductors used in power electronic devices, being subjected in square waveform excitation together with DC bias.
He Sun   +4 more
semanticscholar   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Co-axial dual-core resonant leaky fibre for optical amplifiers [PDF]

open access: yes, 2008
We present a co-axial dual-core resonant leaky optical fibre design, in which the outer core is made highly leaky. A suitable choice of parameters can enable us to resonantly couple power from the inner core to the outer core. In a large-core fibre, such
Ajeet Kumar   +9 more
core   +4 more sources

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