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Multi-temperature gas chromatography using isothermal columns in series. Technical report
A computer-controlled three-oven gas chromatograph having a multi-position stream-switching valve has been used first to divide a wide-boiling mixture of n-alkanes into three cuts and then to fractionate each cut using a packed column at a different temperature. After initial injection of the sample into the highest temperature column, the low boilers were switched to a low temperature oven. Then, the mid-boilers were switched to a column at an intermediate temperature. For routine repetitive analyses, the multi-oven approach offers an attractive alternative.
Date:
August 11, 1980
Creator:
Spencer, W. A. & Rogers, L. B.
Object Type:
Report
System:
The UNT Digital Library
Nitrogen fixation method and apparatus. [DOE patent application]
A method and apparatus for achieving nitrogen fixation includes a volumetric electric discharge chamber. The volumetric discharge chamber provides an even distribution of an electron beam, and enables the chamber to be maintained at a controlled energy to pressure (E/p) ratio. An E/p ratio of from 5 to 15 kV/atm of O/sub 2//cm promotes the formation of vibrationally excited N/sub 2/. Atomic oxygen interacts with vibrationally excited N/sub 2/ at a much quicker rate than unexcited N/sub 2/, greatly improving the rate at which NO is formed.
Date:
August 11, 1981
Creator:
Chen, H. L.
Object Type:
Patent
System:
The UNT Digital Library
[Memorandum from Frank Kemerer, August 11, 1987]
Memorandum from Frank Kemerer to Julia Dunn, Barbara Jungjohan, Peter Lane, Betsy McGuire, Bruce Meeks, and Byron Medler, on August 11, 1987, informing them that Dr. Rogers Redding has accepted the assignment as Director of the Texas Academy of Math and Science. Kemerer mentions that he has turned chairmanship of the Student Affairs Committee to Barbara Jungjohan, as well as plans to expand the committee.
Date:
August 11, 1987
Creator:
Kemerer, Frank R.
Object Type:
Letter
System:
The UNT Digital Library
[Photograph 2012.201.B0147.0444]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Looking over some of the sailing paraphernalia that accompanied the Alpha Chi Omega alumnae's Spring Fling are, from left, Frankie Craig."
Date:
August 11, 1982
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0151.0238]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jamey Curtis, 6, tries on an E. T. T-shirt at T-shirts Unlimited."
Date:
August 11, 1982
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0162.0202]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bryan Dietrich has strong ideas about modern poetry."
Date:
August 11, 1984
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0144.0244]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "John Zudell of the Halliburton softball team, left, accepts a trophy from City Councilman jack Cornett during a recent Oklahoma City Softball leagues award night at Eggeling Stadium in Wheeler Park."
Date:
August 11, 1983
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0146.0076]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Phyllis Hartwig, Lynn Coury and Joan White."
Date:
August 11, 1988
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0306B.0804]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Councilmen and City Attorney Confer."
Date:
August 11, 1981
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0352.0478]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Fred Kluver - owner of Kluver Kar Korner."
Date:
August 11, 1981
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[IRS Determination Letters for University of North Texas]
Photocopy of two letters dealing with the tax exempt status of the University of North Texas. One of the letters is from Richard Rafes and the other is written by someone from the IRS in response to Rafes and discusses what must be withheld from employee checks.
Date:
1988-08-11/1988-10-11
Creator:
Rafes, Richard
Object Type:
Letter
System:
The UNT Digital Library
Magnetic-mirror principle as applied to fusion research
A tutorial account is given of the key physics issues in the confinement of high temperature plasma in magnetic mirror systems. The role of adiabatic invariants and particle drifts and their relationship to equilibrium and stability are discussed, in the context of the various forms of mirror field geometry. Collisional effects and the development and the control of ambipolar potentials are reviewed. The topic of microinstabilities is discussed together with the means for their control. The properties and advantages for fusion power purposes of various special embodiments of the mirror idea, including tandem mirrors, are discussed.
Date:
August 11, 1983
Creator:
Post, Richard F.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0306B.0802]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Shelton James, Bethany - City Council."
Date:
August 11, 1981
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0325.0249]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Leland Kelly ... not one to give up."
Date:
August 11, 1982
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0272.0301]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Enjoying themselves Tuesday night are co-host Charlie Brown, Allyne Hyroop and Llew Keller."
Date:
August 11, 1982
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0352.0476]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Fred kluver - owner of Kluver's Kar Korner."
Date:
August 11, 1981
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0250.0624]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Ed Harris"
Date:
August 11, 1981
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0229.0577]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Brian Griffin , general counsel for Petroleum Investments LTD."
Date:
August 11, 1982
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0262B.0347]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Racing at Will Rogers Downs in Claremore is scheduled to start Saturday."
Date:
August 11, 1987
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0259.0204]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Highway Patrol State - Cars & Equipment"
Date:
August 11, 1985
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0232.0097]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
August 11, 1980
Creator:
Beuhner, Jeff
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0271.0088]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Travis Hurst, 13, son of Mr. and Mrs. Jack Hurst, a witness at fired teacher John Arnold's appeal hearing, listen to question."
Date:
August 11, 1983
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0228.0407]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Ken green waves to the crowd from a deep bunker on No. 16 Thursday."
Date:
August 11, 1988
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0312B.0128]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Wade Jones, Owner, Southwest Auto Mart"
Date:
August 11, 1981
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History