Results 11 to 20 of about 3,076,868 (292)

Effects of Negative Sequence Voltage Subharmonics on Cage Induction Motors

open access: yesEnergies, 2022
In some power systems, voltage waveforms contain, apart from harmonics, interharmonics and subharmonics that are components of frequency less than or not an integer multiple of the fundamental frequency.
Piotr Gnaciński   +4 more
doaj   +1 more source

Principal components analysis of protein sequence clusters [PDF]

open access: yesJournal of Structural and Functional Genomics, 2014
Sequence analysis of large protein families can produce sub-clusters even within the same family. In some cases, it is of interest to know precisely which amino acid position variations are most responsible for driving separation into sub-clusters. In large protein families composed of large proteins, it can be quite challenging to assign the relative ...
Bo, Wang, Michael A, Kennedy
openaire   +2 more sources

Earth Fault Location Using Negative Sequence Currents

open access: yesEnergies, 2019
In this paper, a new method for locating single-phase earth faults on non-effectively earthed medium voltage distribution networks is proposed. The method requires only current measurements and is based on the analysis of the negative sequence components
Amir Farughian   +2 more
doaj   +1 more source

Mixing Bandt-Pompe and Lempel-Ziv approaches: another way to analyze the complexity of continuous-states sequences [PDF]

open access: yes, 2014
In this paper, we propose to mix the approach underlying Bandt-Pompe permutation entropy with Lempel-Ziv complexity, to design what we call Lempel-Ziv permutation complexity.
A. Lempel   +44 more
core   +4 more sources

Analysis on the Applicability of Phase Selection Components of Inverter Power Supply Transmission Line [PDF]

open access: yesE3S Web of Conferences, 2020
This article analyzes the applicability of AC line phase selection components in the context of large-scale offshore wind farms through multi-terminal flexible direct transmission.
Shuo Xu, Bingyuan Yang, Dongsheng Li
doaj   +1 more source

Structural divergence of paralogous S components from ECF-type ABC transporters [PDF]

open access: yes, 2012
Energy coupling factor (ECF) proteins are ATP-binding cassette transporters involved in the import of micronutrients in prokaryotes. They consist of two nucleotide-binding subunits and the integral membrane subunit EcfT, which together form the ECF ...
Beek, Josy ter,   +6 more
core   +4 more sources

Galaxy Formation by Galactic Magnetic Fields [PDF]

open access: yes, 1999
Galaxies exhibit a sequence of various morphological types, i.e., the Hubble sequence, and they are basically composed of spheroidal components (elliptical galaxies and bulges in spiral galaxies) and disks.
Baugh C. M.   +9 more
core   +2 more sources

Unpacking estimates of task duration: The role of typicality and temporality [PDF]

open access: yes, 2014
Research in task duration judgment has shown that unpacking a multifaceted task into components prior to estimating its duration increases estimates. In three studies, we find that unpacking a complex task can increase, decrease, or leave unaffected task
Barbara Summers   +29 more
core   +1 more source

Principal Component Analysis applied directly to Sequence Matrix [PDF]

open access: yesScientific Reports, 2018
Abstract Sequence data is now widely used to observe relationships among organisms. However, understanding structure of the qualitative data is challenging. Conventionally, the relationships are analysed using a dendrogram that estimates a tree shape.
Tomokazu Konishi   +5 more
openaire   +2 more sources

Topological tracking of connected components in image sequences [PDF]

open access: yesJournal of Computer and System Sciences, 2018
Persistent homology provides information about the lifetime of homology classes along a filtration of cell complexes. Persistence barcode is a graphical representation of such information. A filtration might be determined by time in a set of spatiotemporal data, but classical methods for computing persistent homology do not respect the fact that we can
Rocio Gonzalez-Diaz   +2 more
openaire   +5 more sources

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