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631 Matching Results
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Enhanced durability and reactivity for zinc ferrite desulfurization sorbent
AMAX Research Development Center (AMAX R D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-scale, fixed-bed reactor. Durability may be defined as the ability of the sorbent to maintain important physical characteristics such As size, strength, and specific surface area during 10 cycles of sulfidation and oxidation.
Date:
August 28, 1987
Creator:
Jha, Mahesh C.; Baltich, Linda K. & Berggren, Mark H.
Object Type:
Report
System:
The UNT Digital Library
Method of boronizing transition-metal surfaces
A method is presented for preparing a boride layer on a transition metal substrate for use in corrosive environments or as a harden surface in machine applications. This method is particularly useful in treating current collectors for use within a high temperature and corrosive electrochemical cell environment. A melt of a alkali metal boride tetrafluoride salt including such as KF to lower its melting point is prepared including a dissolved boron containing material, for instance NiB, MnB/sub 2/, or CrB/sub 2/. A transition metal to be coated is immersed in the melt at a temperature of no more than 700/sup 0/C and a surface boride layer of that transition metal is formed within a period of about 24 hours on the substrate surface.
Date:
August 28, 1981
Creator:
Koyama, K. & Shimotake, H.
Object Type:
Patent
System:
The UNT Digital Library
Relationship of field components and the matched dispersion function in Arc achromats
The general integral condition connecting the field, its derivative and the resulting eta function derived for any lattice is applied to the achromats of the SLC Arcs. This condition can be combined with the non-dispersive condition to give a simple parameterization of second-order achromats constructed of combined function magnets.
Date:
August 28, 1986
Creator:
Fieguth, T.; Kheifets, S. & Murray, J. J.
Object Type:
Report
System:
The UNT Digital Library
Oil-shale-retorting and combustion system. [DOE patent application]
The present invention is directed to the extraction of energy values from oil shale containing considerable concentrations of calcium carbonate in an efficient manner. The volatiles are separated from the oil shale in a retorting zone of a fluidized bed where the temperature and the concentration of oxygen are maintained at sufficiently low levels so that the volatiles are extracted from the oil shale with minimal combustion of the volatiles and with minimal calcination of the calcium carbonate. These gaseous volatiles and the calcium carbonate flow from the retorting zone into a freeboard combustion zone where the volatiles are burned in the presence of excess air. In this zone the calcination of the calcium carbonate occurs but at the expense of less Btu's than would be required by the calcination reaction in the event both the retorting and combustion steps took place simultaneously. The heat values in the products of combustion are satisfactorily recovered in a suitable heat exchange system.
Date:
August 28, 1981
Creator:
Pitrolo, Augustine A.; Mei, Joseph S. & Shang, Jerry Y.
Object Type:
Patent
System:
The UNT Digital Library
Nuclear reactor control apparatus
Nuclear reactor core safety rod release apparatus comprises a control rod having a detent notch in the form of an annular peripheral recess at its upper end, a control rod support tube for raising and lowering the control rod under normal conditions, latches pivotally mounted on the control support tube with free ends thereof normally disposed in the recess in the control rod, and cam means for pivoting the latches out of the recess in the control rod when a scram condition occurs. One embodiment of the invention comprises an additonal magnetically-operated latch for releasing the control rod under two different conditions, one involving seismic shock.
Date:
August 28, 1981
Creator:
Sridhar, B.N.
Object Type:
Patent
System:
The UNT Digital Library
[Press Release: Report on Homosexuality as a Social Issue]
News release issued by the American Psychological Association, endorsing the findings of the task force report, Homosexuality as a Social Issue. It outlines the findings of the study in 11 separate points with 8 social/environmental conditions affecting gay persons, and it also provides background on the study and the task force. The findings of the report support the notion that homosexuality is not a detrimental factor to society.
Date:
August 28, 1981
Creator:
Paul, William
Object Type:
Text
System:
The UNT Digital Library
[Photograph 2012.201.B0137.0585]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Ralph and Nancy Clore, left, and Ric and Jennie Penner fill their plates with tacos and refried beans."
Date:
August 28, 1982
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0158.0135]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Main entrance to Del City High School has been radically changed due to remodeling project."
Date:
August 28, 1984
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0170.0476]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
August 28, 1986
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0153.0300]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
August 28, 1984
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0149.0885]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Oklahoma and Times Hunter Safety Clinic and draws a resounding response."
Date:
August 28, 1982
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0148.0060]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "I'm an individual who takes pride in my work and I enjoy my job," said Thurman Cravens, who has been cleaning and repairing chandeliers for the last 23 years."
Date:
August 28, 1981
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0144.0471]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jean Ann Coslett, Kitty Houston and Darla Rush , the Eve Trio..."
Date:
August 28, 1982
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0335.0075]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
August 28, 1985
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Letter from Jack Davis and William McCarter to Camille C. Alexander, August 28, 1989]
Photocopy of a letter from Jack Davis and William McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Camille C. Alexander, corporate contributions coordinator at JCPenny company, Inc. The letter is in regards to prior correspondence between Alexander, Davis and McCarter, where they've revised their proposal and submitted it to JCPenny for a two-year grant in the amount of $50,000 to assist in establishing the institute. The rest of the letter details the founding of the institute and their primary goals.
Date:
August 28, 1989
Creator:
Davis, Donald Jack & McCarter, William, 1939-
Object Type:
Letter
System:
The UNT Digital Library
Method and apparatus for producing cryogenic targets
An improved method and apparatus are given for producing cryogenic inertially driven fusion targets in the fast isothermal freezing (FIF) method. Improved coupling efficiency and greater availability of volume near the target for diagnostic purposes and for fusion driver beam propagation result. Other embodiments include a new electrical switch and a new explosive detonator, all embodiments making use of a purposeful heating by means of optical fibers.
Date:
August 28, 1981
Creator:
Murphy, James T. & Miller, John R.
Object Type:
Patent
System:
The UNT Digital Library
[Photograph 2012.201.B0312B.0660]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Amy Abel, 11, shows her grand champion heifer, with hair ribbon."
Date:
August 28, 1986
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0260B.0209]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Yukon Fire Chief Eddie Hogan guards the site at the Midcontinent Farmers Cooperative where a leaking anhydrous ammonia tank caused injuries to several persons and forced evacuation of more than 100 north Yukon residents last week."
Date:
August 28, 1980
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0224.0044]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Cook Manufacturing Corp's enclosure for golf carts was shown off at an Oklahoma City golf course this past week by John Boswell of J.B. Resource Management, a Bethany distributor."
Date:
August 28, 1985
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0247.0261]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bing and Patty Hampton are in their final gamers as owners of 89ers."
Date:
August 28, 1989
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0245.0438]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Galen Hall (Coach)"
Date:
August 28, 1981
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0226.0656]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Four-year-old Lindsey Graham watches the life-sized Barbie models and can't believe her eyes"
Date:
August 28, 1982
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0226.0605]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "candidate defendant"
Date:
August 28, 1980
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Utterbackia imbecillis, Specimen #1388
One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; white internal coloring; green external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 0 - 60 mm in length and was assessed to be long dead when collected.
Date:
August 28, 1980
Creator:
Golightly, C.
Object Type:
Specimen
System:
The UNT Digital Library