Results 61 to 70 of about 157,516 (285)

Routine Testing–Oriented Method for Evaluating Inductive Current Transformers Accuracy Under Harmonic Distortion, Based on Maximum Current Error and Phase Displacement

open access: yesIEEE Access
In the case of the modern inductive current transformers the most important factor that have influence on their wideband accuracy is the self-distortion of the secondary current caused by the nonlinearity of the magnetization characteristic of the ...
Michal Kaczmarek
doaj   +1 more source

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

Application of artificial neural networks for saturation correction in current and voltage transformers [PDF]

open access: yesОмский научный вестник
The article investigates the application of artificial neural networks for saturation correction in current and voltage transformers. Under saturation conditions, these transformers can distort signals, leading to the incorrect operation of measuring ...
E. A. Temnikov, K. I. Nikitin
doaj   +1 more source

Transient Analysis of Current Transformers [PDF]

open access: yes, 2001
The objective of the present work is to investigate the performance and transient behavior of conventional electromagnetic current transformers in comparison to the unconventional current transducers during power system faults.
Ghumman, Muhammad Ramzan
core  

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

A dc to dc converter [PDF]

open access: yes, 1984
The object of the invention is to provide an improved converter for converting one direct current voltage to another. A plurality of phased square wave voltages are provided from a ring counter through amplifiers to a like plurality of output ...
Garrett, H.   +3 more
core   +1 more source

A Solid State Transformer model for power flow calculations [PDF]

open access: yes, 2017
This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo   +1 more
core   +2 more sources

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Current transformers with nanocrystalline alloy toroidal core: analytical, computational and experimental studies

open access: yesMaterials Research, 2012
In this paper are presented theoretical analysis and experimental results concerning the performance of toroidal cores used in current transformers. For most problems concerning transformers design, analytical methods are useful, but numerical methods ...
Benedito Antonio Luciano   +4 more
doaj  

ДОСЛІДЖЕННЯ ПОХИБОК ТРАНСФОРМАТОРІВ СТРУМУ У СИСТЕМАХ РЕЛЕЙНОГО ЗАХИСТУ В УСТАЛЕНИХ ТА ПЕРЕХІДНИХ РЕЖИМАХ ЕНЕРГОСИСТЕМИ

open access: yesElektrotehnìka ta Elektroenergetika, 2016
Мета роботи. Визначення максимальних величин струмових та кутових похибок трансформаторів струму та характеру їх зміни в усталених та перехідних режимах енергосистеми, за яких можливий вихід величин похибок за межі діапазону нормованих значень, а також у
V. V. Nitsenko   +2 more
doaj   +1 more source

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