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404
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333
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7,489
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3,771
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2,690
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THE ELECTROMAGNETIC PINCH EFFECT FOR SPACE PROPULSION
The phenomenon of the electromagnetic pinch effect is used to accelerate ionized gases for space propulsion. Electrical energy, initially stored in capacitors, is discharged across two nozzle shaped electrodes wherein the radial pinch is converted to axial motion of the effected gases instead of confinement at the axis. The gas dynamics of a pinch using the hydrodynamical model of a msgnetic piston driving a shock wave is combined with the electrodynamics of the circuit to calculate the discharge behavior. Experiments on three different electrode designs are discussed and results compared with calculated values. Results are applied to one particular space propulsion system consisting of a nuclear energy source, a space radiator, a turbine-generator, capacitor, and a pinch tube. The specific mission analyzed is a one-way unmanned flight to a Mars orbit, starting from an Earth orbit. (auth)
Date:
August 1, 1959
Creator:
Kunen, A.E. & McIlroy, W.
Object Type:
Report
System:
The UNT Digital Library
Steady State Thermal Behavior of Hnpf Sodium Heat Transfer System
The performance of the Hallam Nuclear Power Facility heat transfer components was investigated in order to determine the steady-state, part load characteristics under various operating conditions. The complete steady-state temperature distributions, variations of flow rates and heat transfer coefficients throughout the sodium heat transfer systems as functions of reactor load are shown in a series of graphs. (M.C.G.)
Date:
August 10, 1959
Creator:
Stell, A.T.
Object Type:
Report
System:
The UNT Digital Library
Dissolution of aluminium oxide as a regulating factor in aqueous aluminum corrosion
The solubility of aluminum corrosion product in contact with metallic aluminum in deionized water has been determined over the range 80 to 350/sup 0/C. Evidence is presented to show that oxide dissolution results in the formation of a porous oxide on aluminum exposed in refreshed dynamic systems. Dynamic corrosion rate data have been analyzed on the basis of parabolic film growth and a linear oxide degradation process acting simultaneously on the system. The degradation process has been shown to be a function of refreshment rate.
Date:
August 31, 1959
Creator:
Dillon, R.L.
Object Type:
Report
System:
The UNT Digital Library
Statesman from Texas, Roger Q. Mills
This is a biography of Roger Quarles Mills and his contributions to Texas history.
Date:
August 1954
Creator:
Purifoy, Russell Albritton, Jr.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
[Photograph 2012.201.B0238.0401]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Engine are George E. Wooloyer, left and Bud Coons, right, field director for the National Hot Rod association."
Date:
August 27, 1957
Creator:
Winford, Wesley
Object Type:
Photograph
System:
The Gateway to Oklahoma History
BASEMENT BOX 67.0248
Photograph taken at night of crowd standing near charred ruins. Caption: "The Chickasha Chiefs of the Sooner State League were Tuesday the citizens of Chickasha were behind them. Borden park, the city-owned diamond, was destroyed by fire Saturday night."
Date:
August 14, 1950
Creator:
Kaho, C. J.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0240.0333]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "It's unpacking time for Ronnie Jones, left, Lawton halfback, and Dick Corbitt, Altus Tackle."
Date:
August 3, 1955
Creator:
Tapscott, George
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0234.0663]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Daddy's a Hero - Everybody Knows It Now - Little Cassandra Commiskey, 3 years old, watched in wonder Wednesday as President Truman made a national hero of her daddy, Lieut. Henry A. Commiskey, by bestowing a Congressional Medal of Honor on him."
Date:
August 1, 1951
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph of Don Graham]
Photograph of Don Graham, a North Texas alumni and TV emcee. He poses with a chair in front of a white screen. He wears a jacket and tie, and holds rolled papers in his hand.
Date:
August 1957
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Photograph of Don Graham]
Photograph of Don Graham, a North Texas alumni and TV emcee. He poses in front of a white screen, wearing a jacket and tie.
Date:
August 1957
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Harold Hitt Graduating With Doctorate]
Photograph of Harold Hitt, the first Doctoral graduate from UNT, recieving his collar. He stands next to the podium, behind which is former president J.C. Matthews.
Date:
August 28, 1953
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Photograph of Don Graham]
Photograph of Don Graham, a North Texas alumni and TV emcee. He sits in front of a white screen, wearing a jacket and tie. The number 3 has been written in the bottom left of the image.
Date:
August 1957
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Harold Hitt Graduating With Doctorate]
Photograph of Harold Hitt receiving the first Doctoral Degree at UNT at the podium with President Matthews. A man stands behind Hitt and presents him with his collar.
Date:
August 28, 1953
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Photograph of Don Graham]
Photograph of Don Graham, a North Texas alumni and TV emcee. He wears a jacket and tie, posing with one leg lifted into a chair in front of a white screen.
Date:
August 1957
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Photograph 2012.201.B0052.0382]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Only wreckage, Pain Left. Trooper D.R. Stogner, above surveys the damage resulting from a truck-car collision four miles northwest or Moore on SH 74 Friday afternoon. Four persons were injured, one seriously. The truck was driven by Jessie Jack Wilmoth, 28, of 26, NW 11, which pulled off a county road onto SH 74and met a car driven by Jerome Janger, 18, of 800 NE 17. Both men were hurt. Two passengers, below in Janger's car, Thelma O'Brien, 32, of 1315 NW 10, and Virgina Galindo, 31, of 315 SW 11, (standing) were injured. Miss O'Brien suffered serious head lacerations. All, except Miss O'Brien were given emergency treatment at St. Anthony and released. Janger said he was taking his two passengers both employed by a downtown city department store, to Norman where they planned to redecorate a fraternity house. Stogner estimated damage to both cars at $1,000."
Date:
August 31, 1951
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0230.0546]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "These two Oklahoma City Cup team members were scored comparatively easy victories Sunday."
Date:
August 27, 1955
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0053.0223]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Drivers Escape-- This was one of those 'miracles' that happen now and then when two motor vehicles meet and both refuse to budge."
Date:
August 16, 1950
Creator:
Pyer, Ronald
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0052.0620]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "ONE MAN DIED Friday when this auto was involved in a collision with a freight train at the SW 19 and Agnew crossing. He was Edward A. Edwards, 48, 1009 SW 27. His death will not be added to the city traffic toll, since the accident scene is in one of the "islands" of Oklahoma county surrounded by the city but not inside the city limits."
Date:
August 7, 1959
Creator:
Cobb, Richard
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0239.0048]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Mangum Band Parents' club is raising $3,000 to buy new uniforms for the 50-piece high school band."
Date:
August 8, 1953
Creator:
Tapscott, George
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0230.0616]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Duffy Martin, left, operator of Golf-Land, chats with Herman Coelho, a well known golf professional from Honolulu."
Date:
August 21, 1953
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0317.0221]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Shows the layout of the new high school in Duncan which is mow under construction. Costing an estimated $1.3 million, the new plant will consist of five buildings."
Date:
August 19, 1959
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0417.0074]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Joao Cafe Filho, former journalist who succeeded Getulio Vargas as president of Brazil following Vargas' death last week, studies a stuffed baby crocodile, part of his collection of animals native to the Amazon river region."
Date:
August 31, 1954
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0239.0052]
Photograph taken for a story in the Oklahoma Times newspaper.
Date:
August 21, 1958
Creator:
Matheson, Mandell
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0052.0844]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "This Auto Wreckage Meant Sudden Death To Shawnee Woman. A Shawnee woman, Mrs. Elmer Dethrow, 50, died in this auto collision Sunday six miles south of Tecumseh."
Date:
August 23, 1954
Creator:
Loftis, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History