Results 41 to 50 of about 246 (211)

Combination of Non-contact and Contact Measuring Methods for Analyzing Structural Conditions of Dry Transformers

open access: yesMeasurement Science Review, 2023
The article describes the non-contact and contact analysis of 1-MVA dry power transformers with epoxy-resin insulation using an acoustic camera and frequency analyzer with automatic sweeping for low-middle frequency areas.
Gutten Miroslav   +6 more
doaj   +1 more source

Pharmacological chromatin remodeling enhances response to estrogen therapy in ER+ breast cancer

open access: yesMolecular Oncology, EarlyView.
Estrogen therapy elicits clinical benefit in ~ 30% of patients with endocrine‐resistant estrogen receptor (ER)‐positive breast cancer. Based on findings that ER transcriptional activation underlies response to estrogen therapy, we tested the effects of epigenetic dysregulation via pharmacological inhibition of histone deacetylases (HDACi).
Anneka L. Johnson Thomas   +16 more
wiley   +1 more source

Thermal performance optimization of 10 kV dry-type transformer: A dual-strategy approach combining silicone rubber-enhanced insulation material and air gaps redesign

open access: yesCase Studies in Thermal Engineering
The traditional dry-type transformers with epoxy resin as insulation material suffer from poor heat dissipation efficiency, which may cause overheating faults. Comparatively, silicone rubber has excellent heat and electronic insulation performance.
Yichen Zhu, Zhibin Qiu, Ruiwen Wu
doaj   +1 more source

Effects of ambient humidity and thermal aging on properties of Nomex insulation in mining dry‐type transformer

open access: yesHigh Voltage, 2021
Temperature and humidity are the main factors that cause the decomposition of Nomex paper widely used as turn‐to‐turn insulation material of mining dry‐type transformers.
Lu Li   +6 more
doaj   +1 more source

Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies

open access: yesFEBS Open Bio, EarlyView.
We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli   +8 more
wiley   +1 more source

Optimized gap positions for improved leakage impedance in dry-type transformer design

open access: yesResults in Engineering
The power and distribution transformers must be properly designed to operate in a variety of conditions and manufactured following all applicable international standards to provide a reliable energy supply to consumers.
Kamran Dawood, Semih Tursun
doaj   +1 more source

Pharmacological inhibition of the PERK pathway modulates hepatocellular carcinoma growth and immune signaling

open access: yesFEBS Open Bio, EarlyView.
Pharmacological inhibition of PERK in a DEN‐induced mouse model of liver cancer does not reduce tumor burden but alters cellular stress signaling. Despite blocking PERK activity, downstream stress responses, including CHOP expression, remain active, suggesting compensatory mechanisms within the unfolded protein response that may influence tumor ...
Ada Lerma‐Clavero   +5 more
wiley   +1 more source

Black-Box Modeling for Investigating Internal Resonances in High-Voltage Windings of Dry-Type Transformers

open access: yesEnergies
Understanding internal resonance phenomena in transformer windings is essential for evaluating insulation performance and preventing equipment failure under transient conditions.
Felipe L. Probst, Stefan Tenbohlen
doaj   +1 more source

A yeast model of 5‐oxoproline accumulation reveals a general toleration to 5‐oxoproline

open access: yesFEBS Open Bio, EarlyView.
Using a yeast model, we show that even high accumulation of 5‐oxoproline causes only mild cellular stress and does not trigger oxidative stress. Instead, cells adapt by activating efflux pumps and diverse protective pathways, suggesting that previously proposed harmful effects of 5‐oxoproline may arise from indirect metabolic imbalances rather than the
Pratiksha Dubey   +4 more
wiley   +1 more source

Estimation of the eddy current losses in a dry-type 3000 KVA transformer with machine learning

open access: yesEnergy Reports, 2020
This paper explores the design parameters of high-voltage coils of three-phase transformers and the effects of eddy current losses caused by energy conversion.
Han-Chieh Chiu   +4 more
doaj   +1 more source

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