Partner
Oklahoma Historical Society
1,308
UNT Libraries Special Collections
317
Rosenberg Library
145
UNT Libraries Government Documents Department
145
UNT Libraries
41
Hardin-Simmons University Library
32
Abilene Public Library
30
Denton Public Library
30
Hopkins County Genealogical Society
29
Sterling Municipal Library
29
119 More
Collection
Texas Digital Newspaper Program
735
Oklahoma Digital Newspaper Program
698
Oklahoma Publishing Company Photography Collection
576
Tocker Foundation Grant
329
KXAS-NBC 5 News Collection
185
Harris and Eliza Kempner
145
University Photography Collection
123
Abilene Library Consortium
87
Office of Scientific & Technical Information Technical Reports
82
The Oklahoma City Times
76
193 More
Country
States
Year
Month
Language
Results:
1 - 24 of
2,754
next
Mass Transfer Coefficients and Interfacial Area in a One Stage Pulse Column
Over-all mass transfer coefficients were determined independently of the interfacial area by considering the operation of the pulse column to be a stage- wise process. The calculated coefficients describe only the operation of the pulse column for the free rise of organic droplets through a stage, since in the downstroke the aqueous phase passes through the organic phase in the form of rivulets preferentially wetting the plates. The driving force for transfer was based on the aqueous phase concentrations. The mass transfer coefficient was found to increase when the interfacial tension was reduced. Two factors appear to affect the mass transfer coefficient as the pulse frequency is changed and are: a) recycle or backmixing which tends to decrease the coefficient through a reduction of acetic acid in both phases and thereby increases the interfacial tension, and b) turbulence which enhances the coefficient by reducing the continuous film resistance. The first is important at or near the lower flooding limit, but the latter is the controlling factor at higher frequencies. (D.L.C.)
Date:
November 1, 1960
Creator:
Konopik, A. E. & Burkhart, L.
Object Type:
Report
System:
The UNT Digital Library
Zero Field Magnetic Properties of Gadolinium Terbium, and Samarium
The mutual inductance or apparent susceptibility due to the presence of the sample in a coaxial inductance coil was observed for Gd, Tb, and Sm in fields of a few gauss over the respective temperature ranges of 78 to 310 deg K, 78 to 235 deg K, and 4.2 to 150 deg K. A paramagnetic Curie point of 284.2 deg K was found for Gd. For Tb, a transition was found which occurred to within 1 deg of the predicted temperature of 220 deg K, and a second peak occurred at 229.4 deg K which is within 2 deg of the heat capacity peak. The 220 deg K peak exhibited hysteresis and time dependence. Extrapolation of Tb data to DELTA M = 0 yielded a Curie point of 235.6 deg K. No hysteresis was observed in the 14.8 deg K peak for Sm. (D.L.C.)
Date:
November 1, 1960
Creator:
Hill, E. D. & Spedding, F. H.
Object Type:
Report
System:
The UNT Digital Library
Research and Development of Metal Hydrides. Summary Report for October 1, 1958-September 30, 1960
A detailed study of the fundamental relations in the zirconium -- hydrogen system was made in order to clarify the many points of dispute and to evolve a complete picture describing all phases of this system. An engineering evaluation was made of means for utillzing the various high cross-section metal hydrides in shielding or control applications. These materials would combine the processes of thermalization and absorption. Consequently, they are of considerable interest for use in shielding or controlling epithermal reactors. (auth)
Date:
November 1, 1960
Creator:
Beck, R. L.
Object Type:
Report
System:
The UNT Digital Library
Equilibrium of the System Lanthanum Nitrate-Praseodymium Nitrate-Nitric Acid-Water-Tributyl Phosphate
A study of the extraction characteristics of the three systems lanthanum nitrate--nitric acid--water--tributyl phosphate, praseodymium nitrate--nitric acid--water--tributyl phosphate, and lanthanum nitrate--praseodymium nitrate nitric acid -water--tributyl phosphate was conducted. The separation factors between praseodymium and lanthanum for the system lanthanum nitrate--praseodymium nitrate-nitric acid--water--tributyl phosphate were shown to be a function of the total nitrate concentration of an equilibrium phase and practically independent of solute composition. A method of predicting the concentrations of lanthanum nitrate, praseodymium nitrate, and nitric acid in an equilibrium phase of the system lanthanum nitrate--praseodymium nitrate--nitric acid--water--tributyl phosphate was presented. A comparison of the extraction characteristics of the system rare-earth nitrate--nitric acid--water--tributyl phosphate for the nitrates of lanthanum, praseodymium, neodymium, and samarium was made. (auth)
Date:
November 1, 1960
Creator:
Sharp, B. M. & Smutz, M.
Object Type:
Report
System:
The UNT Digital Library
Radiation Hazards Encountered in Arc Melting Thorium
A project to provide information on the hazards associated wlth arc melting of Th is described. A general airsampling analysis was made to determine the separation, concentration, and distribution of Th daughter (decay) products throughout arc melting, machining, and forging processes found in a handling facility. The value of well coordinated health physics program is stressed in connection with potential health hazards and personnel protection. Building, equipment, and exhaust ventilation requirements for such a facility are discussed, along wlth special handling methods. (auth)
Date:
November 1, 1960
Creator:
Lowery, R. R.
Object Type:
Report
System:
The UNT Digital Library
Laboratory Investigation of Decontaminating Solutions for Primary Loop Decontamination in the New Production Reactor
An investigation was made of methods for decontaminating the primary loop of the New Production Reactor (NPR). Decontamination factors ranging from fifty to several thousand were obtained with several different combinations of cleaning solutions. In general, fission product activity was removed to a lower residual level than was activated corrosion product activity, and carbon steel was easier to decontaminate than was stainless steel. It was necessary to completely remove the oxide film from the metal surfaces to obtain adequate activated corrosion product decontamination. Descaling procedures were also satisfactory for decontaminating fission product and uranium dioxide contamination. (M.C.G.)
Date:
November 1, 1960
Creator:
Mendel, J. E.
Object Type:
Report
System:
The UNT Digital Library
Development of Liquid-Phase Sintering Techniques for Molybdenum Alloys. Final Report
An envelope-type microstructure produced by liquidphase sintering techniques was used to develop ductiIe molybdenum-base alloys for sodium-cooled fast reactor application. A total of 105 compositions was examined; 21 showed evidence of room-temperature ductility, and a number of other compositions appeared promising. The prerequisites for obtaining ductile liquid-phase sintered materials were demonstrated. The most ductile alloys produced are based on the Mo--Pd--Cu and Mo --W--Ni--Fe systems. Molybdenum-base compositions were developed which could be rolled to 90% reduction in thickness at room temperature. The compactibility of selected alloys with uranium at 750 deg C and liquid sodium at 650 deg C was studied. In both cases the presence of iron and nickel was found to be deleterious. Although alloys compatible with uranium were produced, the specimens exposed to liquid sodium all showed evidence of attack to varying degrees. Two compositions based on the Mo--W--Ni and W--Cr--Ni systems, respectively, appear to hold promise as potential canning materials for sodium- cooled fast reactor application. (auth)
Date:
November 10, 1960
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Photograph of David Webb]
Photograph of David Webb, library director at North Texas State College. He poses for his picture in a suit and tie.
Date:
November 1960
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[North Texas Vs. Tulsa Football Game, 1960]
Photograph of a football game, taken in 11/1960. North Texas (8), Tulsa (12). Players and refs are scattered on the field. Some areas of the photo are overexposed.
Date:
November 1960
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[UNT Players Jumping]
Photograph of four UNT football players jumping into the air on a hill. Photo was taken November of 1960. (849; L1.2)
Date:
November 1960
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[UNT 1960 Homecoming Game]
Photograph of a homecoming football game. North Texas (29), HS (19). Taken 11/5/1960. The players are on the field and two referees run towards them.
Date:
November 5, 1960
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Homecoming 1960]
Photograph of the 1960 Homecoming football game on the North Texas campus in Denton. Players engage in play on the field. Spectators watch from bleachers in the background.
Date:
November 5, 1960
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[North Texas Vs. Tulsa Football Game, 1960]
Photograph of a football game, taken November 1960. North Texas (8), Tulsa (12). Mid-game shot of action on the football field with spectators in the stands.
Date:
November 1960
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[North Texas Vs. Tulsa Football Game, 1960]
Photograph of a football game taken in November, 1960. North Texas (8), Tulsa (12). Players are scattered on the field. Photo primarily shows left side of the field.
Date:
November 1960
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[North Texas Vs. Tulsa Football Game, 1960]
Photograph of a football game, taken November, 1960. North Texas (8), Tulsa (12). Referees stand on the sides of the players in a line during the kick off.
Date:
November 1960
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Photograph 2012.201.B0293.0065]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "NEW AND OLD officers of the Sooner Chapter of the American Right - of - Way Association are pictured after elections here last week."
Date:
November 18, 1960
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0244.0119]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "What is it? Could be a science-fiction type caterpillar basking in the sun, but it isn't."
Date:
November 19, 1960
Creator:
Lucas, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0316.0666]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Loaded for bear, they check their weapons before continuing a wolf hunt in the city Tuesday morning"
Date:
November 22, 1960
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0249.0212]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "A 17-year-old youth, one of more than 500 boys to come under the ministry of Rev. L. M. Stevenson, represents a major milestone in the 12-year history of Weslayan Youth, Inc."
Date:
November 1, 1960
Creator:
Cobb, Richard
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0226.0175]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "It was a tight squeeze Tuesday when crew of motion picture folks rolled this "prairie schooner into the lobby of the Skirvin Hotel."
Date:
November 22, 1960
Creator:
Matheson, Mandell
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0320.0543]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Jams of traffic all but paralyzed morning vehicle movement around many voting place. This scene- in The Village Ward 1, Precinct 2 - shows the growing problem of parking shortage around polls."
Date:
November 8, 1960
Creator:
Traverse, Austin
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0227.0316]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Midwest City Civitan John R. Tuner and police officer Maurice Clark check talking bike donated by Civitans."
Date:
November 17, 1960
Creator:
Cobb, Dick
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0226.0168]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "the movie version of the street gambling scene is quite similar to the true picture. Even the same gambling games, now nearly forgotten, are portrayed."
Date:
November 22, 1960
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0232.0432]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "YOUR HONOR will be a favorite form of address around the home of Mary S. Coleman, Battle Creek Mich."
Date:
November 12, 1960
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History