Partner
Oklahoma Historical Society
252
UNT Libraries Special Collections
221
Texas Historical Commission
153
UNT Libraries Government Documents Department
33
Sterling Municipal Library
10
Deaf Smith County Library
8
UNT Libraries
7
Burleson Public Library
6
Calhoun County Public Library
6
Comanche Public Library
6
69 More
Collection
Texas Digital Newspaper Program
212
Oklahoma Publishing Company Photography Collection
188
KXAS-NBC 5 News Collection
186
THC National Register Collection
150
Tocker Foundation Grant
114
Oklahoma Digital Newspaper Program
74
Office of Scientific & Technical Information Technical Reports
23
LGBT Collections
20
Ladd & Katherine Hancher Library Foundation
15
Chickasha Newspaper Collection
13
110 More
Serial/Series Title
NBC News Clips
185
Lakes Heritage Region
118
Sapulpa Daily Herald
10
The Altus Times
10
The Baytown Sun
10
The Chickasha Daily Express
10
The Perry Daily Journal
10
Folder 5: Correspondence, RE: Baker vs. Wade and Penal Code Article 21.06
9
Independence Heritage Region
9
Pawhuska Journal-Capital
8
114 More
States
Year
Month
Day
Language
Results:
1 - 24 of
893
next
Specific heat loading in Nd:glass lasers
The specific thermal load parameter, chi, for xenon flashlamp-pumped Nd:glass gain media is written as a function of neodymium concentration, pump pulse duration, and energy extraction efficiency. The currently available data on radiative and nonradiative decay probabilities of several commercial Nd:glasses are used to calculate and graph specific thermal load parameter values. By factoring these results into performance scaling relationships for zig-zag and disk lasers, specific Nd:glasses can be selected for optimized laser performance.
Date:
August 7, 1985
Creator:
Krupke, W. F.
Object Type:
Report
System:
The UNT Digital Library
Thin-thick quadrature frequency conversion
The quadrature conversion scheme is a method of generating the second harmonic. The scheme, which uses two crystals in series, has several advantages over single-crystal or other two crystal schemes. The most important is that it is capable of high conversion efficiency over a large dynamic range of drive intensity and detuning angle.
Date:
February 7, 1985
Creator:
Eimerl, D.
Object Type:
Article
System:
The UNT Digital Library
Difficulties with inferring neutron cross sections from charged-particle reactions
We have investigated problems associated with inferring cross sections for neutron reactions on unstable nuclei in the mass-90 region from charged-particle reactions on nearby stable targets. We conclude that effects due to precompound evaporation, isospin, and multiple reaction paths severely limit the circumstances under which charged-particle studies may be directly and easily converted to neutron cross sections of useful accuracy. 4 refs., 2 figs.
Date:
May 7, 1985
Creator:
Gardner, D. G. & Gardner, M. A.
Object Type:
Article
System:
The UNT Digital Library
Improvements in the weldability of a superconductor sheath material
This paper investigates the effects of chemistry and heat treatment variation on the 4-K tensile properties of A-286, a candidate sheath material for force-cooled superconductors. Currently, full use of A-286 and similar superalloys is limited by the observed low yield and ultimate tensile strengths in the welded and aged condition. The low strength is shown to be associated with the formation of precipitate-free zones as a result of alloying-element segregation during weld pool solidification. It has been determined that minor modifications of the weld-metal chemistry by the addition of Ti reduce precipitate-free-zone formation, resulting in matching weld-metal and base-plate strengths at 4 K. Furthermore, nucleation of the ..gamma..' hardening phase has been found to be a strong function of temperature and composition. Modified heat-treatment schedules have been determined that are amenable to superconductor fabrication and that resulted in increased weld hardening and improved 4-K tensile properties.
Date:
August 7, 1985
Creator:
Summers, L.T. & Morris, J.W. Jr.
Object Type:
Article
System:
The UNT Digital Library
Calculational tools for the evaluation of nuclear cross-section and spectra data
A technique based on discrete energy levels rather than energy level densities is presented for nuclear reaction calculations. The validity of the technique is demonstrated via theoretical and experimental agreement for cross sections, isomer-ratios and gamma-ray strength functions. 50 refs., 7 figs. (WRF)
Date:
May 7, 1985
Creator:
Gardner, M.A.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0099.0116]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Morris McCraven plays saxophone on a set."
Date:
March 7, 1985
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0106.0516]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Packsaddle Bridge," over South Canadian River on U. S. 283 north of I-40 in west central Oklahoma."
Date:
May 7, 1985
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0117.0313]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Greg Burns discusses art with Suzanne Owens and Mary Bourne."
Date:
June 7, 1985
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0138.0672]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Decorator Diana Coffman, left, and publicity chairman Libby Hammon assess an unusual corner."
Date:
January 7, 1985
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0164.0713]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
September 7, 1985
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0164.0712]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
September 7, 1985
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0164.0711]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
September 7, 1985
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0150.0731]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Saigon native Quan Pham and her granddaughter, Yvon Thuy, 3, study a dragon, made by four Vietnamese elementary -school students at Edgemere School ..."
Date:
May 7, 1985
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0146.0607]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Transplanting Cowboy Hall of Fame to OCU"
Date:
May 7, 1985
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0310B.0230]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
February 7, 1985
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0329.0409]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "KILPATRICK. JILL \ CITY."
Date:
November 7, 1985
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Creep of 304 LN and 316 L stainless steels at cryogenic temperatures
Creep behavior of Type 304 LN plate and 316 L shielded-metal-arc (SMA)-deposited stainless weld metal was investigated at 4/sup 0/K. Testing was performed at constant load in a creep machine with a cryostat designed for long-term stability. Both transient and steady-state creep were observed during tests lasting over 2000 hours. Steady-state creep rates were much greater than expected from extrapolations of 300-K creep data. Creep rates on the order of 10/sup -10/ s/sup -1/ were observed at stresses around the yield stress for both materials. The stress exponent under these conditions if approx.2.3. Possible creep mechanisms at this temperature and the impact of these results on the design of engineering structures for long-term structural stability at cryogenic temperatures are discussed.
Date:
August 7, 1985
Creator:
Roth, L. D.; Manhardt, A. E.; Dalder, E. N. C. & Kershaw, R. P., Jr.
Object Type:
Article
System:
The UNT Digital Library
New harmonic materials: index engineering. Thin-thick quadrature frequency conversion
The quadrature conversion scheme is a method of generating the second harmonic. The scheme, which uses two crystals in series, has several advantages over single-crystal or other two crystal schemes. The most important is that it is capable of high conversion efficiency over a large dynamic range of drive intensity and detuning angle. Consider a pair of KDP crystals cut for type-II phase matching. In the quadrature scheme, the optic axes of the crystals are arranged so that the plans containing the direction of the laser beam and their optic axes (the kz planes) are mutually perpendicular. This arrangement has two important properties. First, in type-II phase matching, the incident wave is polarized at 45 deg to the kz plane of the crystal. This, in the quadrature scheme, if the incident wave is correctly polarized for efficient conversion in the first crystal, it is also correctly polarized for efficient conversion in the second crystal. Both crystals can therefore convert efficiently.
Date:
February 7, 1985
Creator:
Eimerl, D.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0226.0739]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Lloyd Gramling, Retiring Police Chief."
Date:
January 7, 1985
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0257.0199]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Mrs. James Thiekle, left, Mrs. Joseph Fleckinger and librarian Caradith Craven look over some new books."
Date:
March 7, 1985
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0239.0417]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Margaret Mcllroy and Liz Hahn can't wait to sample the buffet prepared by Linda Trippe."
Date:
January 7, 1985
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0553.0425]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Sharon McColl and Ann Fishkin talk with David Hodges and Marty McCharon, from left."
Date:
June 7, 1985
Creator:
Gooch, Steve
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0310B.0232]
Photograph used for a story in the Daily Oklahoman newspaper.
Date:
February 7, 1985
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0262.0623]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Man Keung, Ho"
Date:
March 7, 1985
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History