Results 81 to 90 of about 1,713,151 (356)

The measurement of very low conductivity and dielectric loss in XLPE cables: A possible method to detect degradation due to thermal aging [PDF]

open access: yes, 2011
The dielectric response of crosslinked polyethylene (XLPE) insulated, miniature power cables, extruded with inner and outer semicons, was measured over the frequency range 10-4 to 104 Hz at temperatures from 20 to 100 °C.
Dissado, L. A.   +4 more
core   +1 more source

Augmented models of High-Frequency Transformers for SMPS [PDF]

open access: yes2009 20th International Zurich Symposium on Electromagnetic Compatibility, 2009
The modeling of high-frequency transformers via augmented equivalent circuits is addressed. The augmented models are composed of a low-frequency equivalent and a supplemental element modeled via real rational fitting. They offer both high accuracy levels and a physical meaning that helps the interpretation of simulation results.
MAIO, Ivano Adolfo   +3 more
openaire   +2 more sources

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

Voltage inverter using high frequency transformer with PWM Modulation

open access: yesSemina: Ciências Exatas e Tecnológicas, 2004
This paper introduces a new frequency inverter topology with four forward converters, in a parallel topology configuration. These converters were modified to prevent one circuit to interfere on the functioning of other The resulting power is 800W, with ...
Ana Paula Bolognini   +2 more
doaj  

Transformers in High-Frequency Trading

open access: yesJournal of Physics: Conference Series
Abstract Transformer is a deep learning model that, having an innovative performance in many tasks, has uniquely and significantly modified all the cast of mind of the AI scientific community. In this paper, we introduce a Transformer model that is applied to 1-minute timescale in the EURUSD and GBPUSD instruments of forex trading.
Konstantinos T. Kantoutsis   +2 more
openaire   +1 more source

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

Design optimization of high frequency transformer with controlled leakage inductance for current fed dual active bridge converter

open access: yesAIP Advances, 2018
Current fed dual active bridge converters for photovoltaic generation may typically require a given leakage or extra inductance in order to provide proper control of the currents. Therefore, the many researches have been focused on the leakage inductance
Tae-Uk Jung   +2 more
doaj   +1 more source

Overvoltage Protection for High Frequency High Voltage Power Transformers

open access: yesEletrônica de Potência, 2019
Transformers with high-voltage operation may have undesired behavior due to the effects of their parasitic elements. In power electronics applications, if the primary voltage has harmonics, transformer resonances may be excited, causing high primary ...
Diego Teruo Mendes de Souza   +2 more
doaj   +1 more source

Transformation ray method: Controlling high frequency elastic waves (L) [PDF]

open access: yesThe Journal of the Acoustical Society of America, 2012
Elastic ray theory is a high frequency asymptotic approximation of solution of elastodynamic equation, and is widely used in seismology. In this paper, the form invariance under a general spatial mapping and high frequency wave control have been examined by transformation method.
Chang, Zheng   +3 more
openaire   +3 more sources

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