Results 151 to 160 of about 16,872 (217)

Gondwanan cyrtocrinids uncover hidden diversity and crinoid dispersal pathways. [PDF]

Sci Rep
Salamon MA, Benyoucef M, Zaidi MA, Ciesielczuk J, Bouchemla I, Płachno BJ.   +5 more
europepmc   +1 more source

Repeated major inland retreat of Thwaites and Pine Island glaciers (West Antarctica) during the Pliocene. [PDF]

Proc Natl Acad Sci U S A
Horikawa K, Iwai M, Hillenbrand CD, Siddoway CS, Halberstadt AR, Cowan EA, Penkrot ML, Gohl K, Wellner JS, Asahara Y, Shin KC, Noda M, Fujimoto M, Expedition 379 Science Party.   +13 more
europepmc   +1 more source

Effects of low-level electric current on the growth of <i>Amphistegina lobifera</i> and its photosynthetic diatom endosymbionts. [PDF]

PeerJ
Rebecchi F, Lattanzi D, Abramovich S, Ambrogini P, Frontalini F, Schmidt C.   +5 more
europepmc   +1 more source

3D-MINFLUX nanoscopy reveals distinct allosteric mechanisms for activation and modulation of PIEZO1 by Yoda1. [PDF]

Nat Commun
Verkest C, Roettger L, Zeitzschel N, Lechner SG.   +3 more
europepmc   +1 more source

Application guide bearing currents [PDF]

, 2021
This application guide bearing currents is intended to provide an overview of electrical bearing current effects in rolling bearings, related to bearing damage, concerning the questions: - Which typical failures occur due to bearing currents? - What are electrical bearing currents? - How do electrical bearing currents occur?
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Induction Motor Bearing Currents - Causes and Damages

2021 28th International Workshop on Electric Drives: Improving Reliability of Electric Drives (IWED), 2021
Bearing damages make the biggest proportion of faults affecting AC electrical motors. There are various subdivisions of the bearing faults but one of them is the induced bearing and shaft currents in the machines. These currents cannot be fully avoided, yet with the development of power electronic control of the machines, the number of machines ...
Kudelina, Karolina, Vaimann, Toomas, Rassõlkin, Anton, Kallaste, Ants, Asad, Bilal, Demidova, Galina   +6 more
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Bearing wear caused by converter-induced bearing currents

IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society, 2010
The basic interrelationships that are required to investigate the cross-system subject of “bearing currents in converter operation”, are discussed in this paper. In order to obtain an integrated overview of the situation, it is decisive that the main points of the investigation are not discussed individually, but must be considered from an overall ...
H. Tischmacher, S. Gattermann, M. Kriese, E. Wittek   +3 more
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Bearing currents in converter operation

The XIX International Conference on Electrical Machines - ICEM 2010, 2010
The basic inter-relationships, which are required to investigate the cross-system subject of “bearing currents in converter operation”, are discussed in this paper. In order to obtain an integrated overview of the situation, it is decisive that the main points of investigation that are discussed are combined and viewed holistically.
H. Tischmacher, S. Gattermann
openaire   +1 more source