Results 41 to 50 of about 12,066 (353)
Circular arc detection based on Hough transform [PDF]
Pattern Recognition Letters, 1995 A new method is proposed to detect circular arcs. The detection of a circular arc includes the determination of its center, radius, length, and midpoint. The Hough transform is applied to detect circular arcs by using center and radius as parameters. A peak value in the parameter space of the Hough transform indicates the existence of a circular arc ...
Soo-Chang Pei, Ji-Hwei Horng
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Arc Modeling and Kurtosis Detection of Fault with Arc in Power Distribution Networks
Applied Sciences, 2022 In power distribution networks, there are many practical fault cases such as high impedance faults, faults and so on. Especially when the faults with electric arc persist, it is dangerous for human beings and circumstances. Nevertheless, it is difficult to classify faults due to various customer load conditions or the presence of distributed energy ...
Seung-Yoon Hyun +4 more
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The Electrical Behaviour of Railway Pantograph Arcs
Energies, 2023 Electric arcing is an unavoidable consequence of the current collection process by sliding contact in railways and metros, and in general in many electrified transportation systems (ETSs).
Andrea Mariscotti
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Arcfinder: an algorithm for the automatic detection of gravitational arcs [PDF]
Astronomy & Astrophysics, 2007 12 pages, 12 ...
Seidel, Gregor, Bartelmann, Matthias
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In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Time domain analysis of switching transient fields in high voltage substations [PDF]
, 2009 Switching operations of circuit breakers and disconnect switches generate transient currents propagating along the substation busbars. At the moment of switching, the busbars temporarily acts as antennae radiating transient electromagnetic fields within ...
Judd, M.D., Musa, B.U., Siew, W.H.
core
Molecular Oncology, EarlyView.Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau +36 more
wiley +1 more source
A New Method for Pantograph-Catenary Arc Detection Based on Acoustic Signals
Chengshi guidao jiaotong yanjiuObjectiveTo enhance the accuracy and precision of arc detection in urban rail transit and address the limitations of existing arc detection methods such as electrical and optical approaches, it is necessary to develop new pantograph-catenary arc ...
Zixian YANG +3 more
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Arc Detection and Severity Analysis for Plasma Etching Processes
IEEE AccessWith the rising demand for higher quantities and quality of semiconductors, refining production processes is essential. Plasma etching, a key step in semiconductor manufacturing, is valued for its precision and speed but is also vulnerable to plasma ...
Doochan Ko +3 more
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Energies, 2022 In power energy distribution networks, switchgear is considered critical equipment. This is because the act of monitoring the operation and condition of switchgear, as well as performing the required corrective maintenance on any potentially problematic ...
Yaseen Ahmed Mohammed Alsumaidaee +5 more
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