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Characterization of the dynamic roadway-powered electric-vehicle system (open access)

Characterization of the dynamic roadway-powered electric-vehicle system

The measurements, data reduction, and analysis contained herein are for the most part preliminary. The instrumentation system for dynamic measurements was not completed and so the measurements taken were in the static mode and a limited amount of instruments was used. Most of these preliminary measurements were made to characterize the losses in the roadway and the pickup of the dynamic RPEV system. By analysis of power, voltage, current and impedance-bridge measurements (at 100 Hz and 1000 Hz), the equivalent series resistance (ESR) and equivalent parallel resistance (EPR) of the roadway and pickup inductances and capacitances were derived. Separation of the inductive and capacitive losses was difficult because of the large ratio of stored energy to power loss, that is, the Q of each of these system elements, and the separation was accomplished by modeling the system losses and making a least-squares fit to the model with the test data. The bridge data was used primarily for capacitance and inductance values and the ESR or EPR data were not analyzed.
Date: October 30, 1981
Creator: Salisbury, J.D.; Mullenhoff, D. & Walter, C.E.
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.B0255.0542]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mrs. Frank Hellams, chrysanthemum expert, displays mums she hopes will be prize winners at the 31st annual mum show tomorrow at the Will Rogers Garden Exhibition Building."
Date: October 30, 1981
Creator: Miller, Joe
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0245.0828]

Photograph used for a story in the Oklahoma Times newspaper.
Date: October 30, 1981
Creator: Albright, Bob
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0252.0191]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "While ghosts and goblins of the younger generation were out trick or treating Friday night in Oklahoma City their grandparents were enjoying some Halloween magic of their own at Four Seasons Nursing Center, 5301 N Brookline. At Left, a masked Opal Hatton takes note of the balloon sculptures of Clown Stephen R. Smith, above, Goldy Biggs, left, and Mrs. L. B. Perkins, decorate a stuffed visitor."
Date: October 30, 1981
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0105.0520]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Mr. and Mrs. Ben Brewster, left, and Mrs. Bill Jackson select hors d' oeuvres served at the gourmet dinner"
Date: October 30, 1981
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0123.0288]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Scratch a "Moonie" and David Cantrell says you'll find a "pioneer in the spiritual wilderness."
Date: October 30, 1981
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History
Effect of solid particles on the turbulent flow of a round gaseous jet. A mathematical and experimental study. Quarterly technical progress report, May 1, 1981-October 30, 1981 (open access)

Effect of solid particles on the turbulent flow of a round gaseous jet. A mathematical and experimental study. Quarterly technical progress report, May 1, 1981-October 30, 1981

Progress in mathematical and experimental studies aimed at modeling and measuring flows rates for the two-phase gases with dispersed particles turbulent flows in jets is reported. Exact transport equations of mass and momentum for the two phases, the carrier fluid's kinetic energy of turbulence and its dissipation rate have been derived for incompressible two-phase flows. The modeling of the various turbulence correlations has been completed. The finite-difference formulation of the equations is in progress at present. An outline of the work completed so far is described in the next section. In the area of clear air jet measurements, attempts were made to obtain two-dimensional measurements of clear air jet using a two-color, bragg cell shifted laser velocimeter. A complete data set for the streamwise component of mean velocity and turbulence intensity and some data for tangential velocity components were recorded and are included. These data were obtained using a recently modified software package for two-component data acquisition. In the process of the experiment, some software/hardware problems evolved which resulted in incorrect values for shear stress data as well as the tangential velocity samples. The hardware and the software for the coincidence requirement of the two components were modified and the …
Date: October 30, 1981
Creator: Elghobashi, S.E.
Object Type: Report
System: The UNT Digital Library
[News Clip: TDC deadline] captions transcript

[News Clip: TDC deadline]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 30, 1981, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Highland Park trial] captions transcript

[News Clip: Highland Park trial]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 30, 1981, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Hospital Halloween] captions transcript

[News Clip: Hospital Halloween]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 30, 1981, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Water proposition] captions transcript

[News Clip: Water proposition]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 30, 1981, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Casting ripoff] captions transcript

[News Clip: Casting ripoff]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 30, 1981, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Daniel verdict] captions transcript

[News Clip: Daniel verdict]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 30, 1981, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Mouthwash] captions transcript

[News Clip: Mouthwash]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 30, 1981, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
The Ranger (San Antonio, Tex.), Vol. 56, No. 8, Ed. 1 Friday, October 30, 1981 (open access)

The Ranger (San Antonio, Tex.), Vol. 56, No. 8, Ed. 1 Friday, October 30, 1981

Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date: October 30, 1981
Creator: San Antonio College
Object Type: Newspaper
System: The Portal to Texas History
The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 106, No. 44, Ed. 1 Friday, October 30, 1981 (open access)

The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 106, No. 44, Ed. 1 Friday, October 30, 1981

Weekly newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date: October 30, 1981
Creator: Keys, Clarke & Woosley, Joe
Object Type: Newspaper
System: The Portal to Texas History

[Photograph 2012.201.B1380.0719]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Heritage Hall coach Les Wojciechowski "visits" with official David Gore."
Date: October 30, 1981
Creator: Southerland, Paul B.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0145.0073]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "An investigation of an alleged counterfeiting operation led Secret Service agents and police to a Moore home Thursday where they discovered an offset press, copy camera, paper cutter and plate maker."
Date: October 30, 1981
Creator: Miller, Joe
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0356.0302]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: October 30, 1981
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0356.0327]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: October 30, 1981
Creator: Southerland, Paul B.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1024.0453]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Halloween-costumed kindergartners at Central Oak Elementary School, SE 15 and Eastern, peek through their masks at the illustrations to a story Elnora Poindexter is reading to them."
Date: October 30, 1981
Creator: Lynn, Renee
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1030.0576]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: October 30, 1981
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1030.0574]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Ronnie Washkiewicz:Ike"
Date: October 30, 1981
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1030.0575]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "MC #25 Philip Freeman with ball."
Date: October 30, 1981
Creator: McDaniel, David
Object Type: Photograph
System: The Gateway to Oklahoma History