Zobrazeno 1 - 10
of 20
pro vyhledávání: '"S R, Campbell"'
Publikováno v:
IEEE Industry Applications Magazine. 17:66-69
Flux monitoring via air gap flux probes is a proven technology used for many years in synchronous machines to determine the presence of turn-to-turn shorts in a rotor winding. This information is critical in planning maintenance outages and augmentin
Publikováno v:
2014 IEEE Electrical Insulation Conference (EIC).
On-line partial discharge (PD) measurement is now widely applied to motors rated 6 kV and above that are fed from the 50/60 Hz power system. However, during the past several years, many motors are being powered from inverters which facilitate variabl
Autor:
E A Meyer, Edward L. Jarroll, H van Keulen, J Kulda, S R Campbell, M A Gates, R R Gutell, S L Erlandsen
Publikováno v:
The FASEB Journal. 7:223-231
Complete small-subunit rRNA (SSU-rRNA) coding region sequences were determined for two species of the intestinal parasite Giardia: G. ardeae and G. muris, both belonging to the order Diplomonadida, and a free-living member of this order, Hexamita sp.
Publikováno v:
Applied optics. 30(19)
A prototype on-line rotor temperature monitor based on phosphor decay-time measurements using optical fibers was tested on two large electrical generators.
Publikováno v:
Molecular and Biochemical Parasitology. 46:275-284
In an attempt to study Giardia at the DNA sequence level, the rRNA genes of three species, Giardia duodenalis, Giardia ardeae and Giardia muris were cloned and restriction enzyme maps were constructed. The rDNA repeats of these Giardia show completel
Autor:
Alicia A. Bergman, R M Frankel, Marianne S. Matthias, Erin E. Krebs, Jessica Coffing, S R Campbell
Publikováno v:
Journal Club Schmerzmedizin. 4:94-94
In den letzten 20 Jahren hat die Verschreibung von Opioidanalgetika bei chronischen Schmerzen in den USA fast exponentiell zugenommen. In diesem Zusammenhang werden immer haufiger Bedenken laut, dass diese Praxis Abhangigkeitserkrankungen und akziden
Publikováno v:
Nucleosides, nucleotidesnucleic acids. 24(5-7)
N4-Acetyl-1-(2, 3-di-O-acetyl-4-thio-beta-D-arabinofuranosyl) cytosine (2) was synthesized in three steps from 1-(4-thio-beta-D-arabinofuranosyl) cytosine (1). The reaction of this partially blocked 4'-thio-ara-C derivative 2 with 2-chloro-4H-1,3,2-b
Publikováno v:
Conference Record of the 1996 IEEE International Symposium on Electrical Insulation.
An automatic partial discharge monitoring system has been developed to continuously measure the PD activity in operating motor and generator stator windings. The system is intended for long term use by electric utility and industrial plant personnel,
Publikováno v:
Proceedings of IEEE Pulp and Paper Industry Conference.
Deterioration of the stator windings continues to be one of the predominant causes of large motor and generator failures. Over the past several years, much research has been done to develop technologies to provide plant maintenance personnel with bet
Publikováno v:
Record of Conference Papers. Industry Applications Society Forty-Seventh Annual Conference. 2000 Petroleum and Chemical Industry Technical Conference (Cat. No.00CH37112).
Random wound stator windings in motors operating in refining and petrochemical plants have failed when exposed to the fast-risetime voltage surges coming from inverters. Studies show that the failure is due to a combination of bad luck in specific mo