Results 41 to 50 of about 17,489 (250)

Design of Power Transformer with Frequency 1 Khz

open access: yesCommunications, 2023
This paper deals with the noise level of power transformers operating at a middle frequency from 800 Hz to 2000 Hz. The factors that influence the noise produced by power transformers are size, design and operating conditions. The research shows that the
Marek Franko   +4 more
doaj   +1 more source

The Transformative Power of Birth

open access: yesThe Journal of Perinatal Education, 2019
A mother recalls the home birth of her first child. Her story exemplifies the power of birth when a mother is supported to listen to her body and labor on her own terms, and she praises the comfort of home birth and the respect of midwifery care. She emerges from the other side of her birth empowered and transformed, ready to embrace motherhood.
openaire   +3 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS 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

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

ABOUT THE LOAD FACTOR OF POWER TRANSFORMERS OF THE RAILWAY TRACTION SUBSTATIONS

open access: yesNauka ta progres transportu, 2009
The author has proposed the criterion and method of determination of optimum load factors of power transformers of railway traction substations.
V. H. Kuznetsov
doaj  

DC Bias in Transformers of Dual Current Power Supply Lines

open access: yesChengshi guidao jiaotong yanjiu
[Objective] To ensure the safety of traction transformers in dual current power supply lines and prevent issues such as transformer vibration and winding temperature increase caused by excessive DC bias current, which can lead to severe distortion of ...
LI Xuefei   +4 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

A Review of Cybersecurity Challenges in Smart Power Transformers

open access: yesIEEE Access
In the evolving landscape of critical infrastructure security, the increasing sophistication of cyber threats poses challenges, particularly to the power grid’s new technology infrastructure. Despite traditionally being considered passive elements,
Hossein Rahimpour   +6 more
doaj   +1 more source

A Power Transform

open access: yesCoRR
Power transforms, such as the Box-Cox transform and Tukey's ladder of powers, are a fundamental tool in mathematics and statistics. These transforms are primarily used for normalizing and standardizing datasets, effectively by raising values to a power.
openaire   +2 more sources

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