1,749,916 research outputs found
Evaluation of the volumetric erosion of spherical electrical contacts using the defect removal method
No full textVolumetric erosion is regarded as a significant index for studying the erosion process of electrical switching contacts. Three-dimensional (3-D) surface measurement techniques provide an approach to investigate the geometric characteristics and volumetric erosion of electrical contacts. This paper presents a concrete data-processing procedure for evaluating volumetric erosion of spherical electrical contacts from 3-D surface measurement data using the defect removal method (DRM). The DRM outlined by McBride is an algorithm for evaluating the underlying form (prior to erosion) parameters of the surfaces with localized erosion and allowing the erosion characteristics themselves to be isolated. In this paper, a number of spherical electrical contacts that had undergone various electrical operations were measured using a 3-D surface profiler, the underlying form parameters of the eroded contacts were evaluated using the DRM, and then the volumetric erosions were isolated and calculated. The analysis of the correlations between the volumetric erosion and the number of switching cycles of electrical operation that the contacts had undergone showed a more accurate and reliable volumetric erosion evaluation using the DRM than that without using the DRM
[Warrant of Arrest for Jack Ruby by Pierce McBride, November 24, 1963 #5]
No full textWarrant of Arrest for Jack Ruby issued by Pierce McBride, charging Jack Ruby with the murder of Lee Harvey Oswald
Robert McBride Folder
No full text31 page of family history documents containing and related to Robert McBride; Charles Hathaway; Deidy McBride; Murten McBride - including: Idaho Statesman wedding announcement; Oral Histor
Interview with Reverend Maxwell McBride
No full textIn this interview, Maxwell McBride discusses his work on the battery at a coke plant as well as his religious faith. McBride worked on the battery making coal into coke. He describes the work as intensely hot as well as bad for the eyes because the light from the furnaces was so bright. He explains the process of making coke in great detail. McBride remembers being in an explosion once. He was badly burned and his eyes temporarily hurt. He recalls being treated by the company at Lloyd Noland Hospital and paid in full for working half days during his approximately month-long recovery. McBride also remembers the union coming in. He says some resisted because of the money involved. He discusses the manufacturing boom that came with World War II. He explains that women worked there during that period, and he didn't mind at all. McBride concludes by talking about his conversion experience to Christianity and his work as a preacher, starting in the early forties
Senior Project of Shaun McBride
No full textShaun McBride documents their journey of the directing process for Studio 115\u27s production WHITE by James Ijames, produced by the Theatre and Dance department at the University of Mary Washington in Fredericksburg, Virginia. McBride\u27s portfolio includes journal entries from the beginning to the end of their process, analysis documents, schedules, and cast lists
Ms McBride
No full textPortrait view of Ms. McBride from the Odom Photography Studio on Bradenton’s Old Main Street
The energetics of gas flow and contact erosion during short circuit arcing
Full text linkThe processes governing the movement of short circuit arcs in circuit breakers are complex and variable and the detailed understanding of these processes is incomplete. This paper presents a new approach to our understanding of the short circuit arcing process by concentrating on the bulk thermal behavior and energetics of the arcing and gas flow during contact opening. It is shown how considerations of the arc power and the heating and vaporization of the contact material can be used to examine the flow of gas through the arc chamber and the erosion of contact material. Experimental data from a flexible test apparatus and arc imaging system along with measurements of pressure and arc current and voltage are used as the basis of the analysis. It is demonstrated how the air initially present in the arc chamber will be rapidly expelled from the arc chamber to leave an arc burning in the products of contact volatilization. Data on mass and volume flow rates are presented as well as estimates of the gas velocity in the contact region. These data provide information on the nature of the gas flow in the arc chamber as well as contact erosion during the arcing process. Arcing conditions of interest are short circuit faults (103-104 A) in low voltage (220-380 VAC) circuit breakers
Profile of unidentified man, Seattle, Washington, approximately 1916
No full textCaption on Image: McBride and Anderson.
Printed on verso: McBride and Anderson. Photographers. &05 Broadway N. Seattle, W.A.
PH Coll 334 McBride and Anderson.1The McBride and Anderson studio was located in Seattle, Washington. McBride is possibly Ella E. Mcbride a female photographer who was active in Seattle between 1916-1925, and worked with several partners in her studio.To order a reproduction, inquire about permissions, or for information about prices see:
http://www.lib.washington.edu/specialcollections/services/reproduction/reproduction
Please cite the Order Numbe
Tonya McBride, 2013
No full textInterview of community member Tonya McBride from The Heights History Camp, 2013. Interviewed by Treadwell Middle students, sponsored by The Corners at Highland Heights Shalom Zone, Rhodes College, and The Center for Transforming Communitie
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