Results 51 to 60 of about 677,995 (332)

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

Design optimisation for distance between additional and tap winding in high-voltage transformers

open access: yesHigh Voltage, 2020
The transformer is one of the main components in the power network and transformer windings are one of the most expensive elements in the power transformer.
Kamran Dawood   +3 more
doaj   +1 more source

Identification of interturn faults in power transformers by means of generalized symmetrical components analysis [PDF]

open access: yesE3S Web of Conferences, 2019
The paper deals with experimental identification of transformer internal faults, an important factor in reliability and sustainability of power supply systems. Task of identification of transformer internal faults requires increasing sensitivity of relay
Ivanchenko Daniil, Smirnov Artem
doaj   +1 more source

Apparatus for measuring current flow Patent [PDF]

open access: yes, 1969
Electric current measuring apparatus design including saturable core transformer and energy storage device to avoid magnetizing current errors from transformer output ...
Paulkovich, J.
core   +1 more source

A 2.7-kW, 29-MHz class-E/F/sub odd/ amplifier with a distributed active transformer [PDF]

open access: yes, 2005
A Class-E/Fodd high power amplifier (PA) using the distributed active transformer (DAT) is demonstrated at 29MHz. The DAT combines the output power from four VDMOS push-pull pairs.
Jeon, Sanggeun, Rutledge, David B.
core   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

A Study on the Dynamic Transmission Law of Spiral Drum Cutting Coal Rock Based on ANSYS/LS-DYNA Simulation

open access: yesComplexity, 2019
The ANSYS/LS-DYNA software has been used in this paper to establish the coal rock coupling model. A dynamic simulation of the cutting process was used to analyze the variation of the load.
Lijuan Zhao, Hongmei Liu, Wenchao Zhou
doaj   +1 more source

Island Partition of Distribution System with Distributed Generators Considering Protection of Vulnerable Nodes

open access: yesApplied Sciences, 2017
To improve the reliability of power supply in the case of the fault of distribution system with multiple distributed generators (DGs) and reduce the influence of node voltage fluctuation on the stability of distribution system operation in power ...
Gang Xu, Shunyu Wu, Yuanpeng Tan
doaj   +1 more source

Development of a turn-to-turn fault detection method in the three-phase transformer's winding

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2021
THE PURPOSE. Reveal the regularities of turn-to-turn faults influence on to parameters of a three-phase network transformer in the disconnected transformer mode with the supply of control voltages and currents from an external source in the transformer ...
R. G. Mustafin   +4 more
doaj   +1 more source

Transformation.

open access: yesGenome biology, 2006
The Nobel process for science are often somewhat controversial for who they omit. A posthumous Nobel honor could help recognize some neglected heroes.
openaire   +2 more sources

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