Resource Type
Partner
UNT Libraries Government Documents Department
9,718
UNT College of Arts and Sciences
118
UNT College of Science
72
UNT College of Engineering
42
UNT Libraries
28
UNT Libraries Special Collections
26
UNT College of Information
23
UNT College of Liberal Arts & Social Sciences
18
University of North Texas
13
UNT College of Education
10
12 More
Collection
Office of Scientific & Technical Information Technical Reports
9,715
UNT Scholarly Works
332
LGBT Collections
17
Journal of Near-Death Studies
11
Charles C. Francis Papers
7
UNT Graduate Student Works
7
Dennis Vercher Collection (The Dallas Way)
6
D. Jack Davis Art Education Collection
5
International Workshop on Digital Language Archives
5
Texas Academy of Mathematics and Science Collection
5
13 More
Serial/Series Title
Anabiosis
11
Charles C. Francis Papers, 1911-2013
7
JNDS, Volume 2, Number 1
6
JNDS, Volume 3, Number 1
5
Proceedings of the 2nd International Workshop on Digital Language Archives: LangArc 2023
5
Gay Games IV: June 18-25, 1994
4
Phi Delta Kappan
4
Publicity Articles
3
2008 TSDC General Information
1
AIDS articles/media
1
11 More
Degree Department
Decade
Month
Language
10,102 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
10,102
next
Born and Raised in No'th Ca'llina
This article is the first part of Arthur W. Page's biography of O. Henry, "Little Pictures of O. Henry." It addresses O. Henry's early life and is illustrated with photographs and sketches.
Date:
June 1913
Creator:
Page, Arthur W. (Arthur Wilson), 1883-1960
System:
The Portal to Texas History
Aqueous Decontamination of Plutonium From Fission Product Elements
None
Date:
June 1, 1958
Creator:
Winchester, R. S. & Maraman, W. J.
System:
The UNT Digital Library
Ion exchange properties of hydrous oxides
The large class of amorphous insoluble hydrous oxides has interesting ion exchange properties. These materials have high capacities and suitable exchange rates and may therefore be used in packed columns in typical chromatographic (ion exchange) manner. Hydrous oxides may exhibit either cation exchange or anion exchange properties, or both. The type of adsorption depends on the element on which the oxide is based, on the acidity of the medium and, to some extent, on the ion adsorbed. Though some of the most acidic oxides are soluble (e.g., P/sub 2/O/sub 5/) or easily dispersible (e.g., MoO/sub 3/ WO/sub 3/) their intrinsic cation exchange properties may be utilized by incorporating them in excess into an insoluble matrix, i.e., by preparing certain insoluble acidic salts. Some of the materials with cation exchange properties may be used even with extremely small columns - for the separation of the alkali metals from each other - or of the alkaline earths. The specificity of these compounds for cesium in acidic solutions permits the almost unique isolation of this element from properties all others. Those oxides with anion exchange properties also have unusual selectivities compared with the organic ion exchangers. Oxides based on Bi(III) have high selectivities …
Date:
June 1, 1958
Creator:
Kraus, K. A.; Phillips, H. O.; Carlson, T. A. & Johnson, J. S.
System:
The UNT Digital Library
Pyrometallurgical Purification of Plutonium Reactor Fuels
Pyrometallurgical methods studied are liquation, self-drossing and filtration, slagging by the addition of oxide, carbide, or halide, liquid metal extraction, complete conversion to halide, followed by filtration and selective reduction of the plutonium, and electrorefininng. Experimental techniques and results are presented for each method. (auth)
Date:
June 1, 1958
Creator:
Leary, J.A.; Benz, R.; Bowersox, D.F.; Bjorklund, C.W.; Johnson, K.W.R.; Maraman, W.J. et al.
System:
The UNT Digital Library
Radiochemical Studies of the Fast Neutron Fission of U$sup 235$ and U$sup 238$
Radiochemical studies of the fast neutron fission of U/sup 235/ and U/sup 238/ have been made in the mass region beyond mass 143 with two neutron energy distributions. These studies provide measurements of the relative fission yields of several chains in the rare earth group in fission of U/sup 235/ and U/sup 238/ caused by neutrons with an energy distribution very close to unmoderated fission neutrons and by neutrons with an energy distribution peaked at 8 Mev. The increased contribution of very asymmetric modes of fission as the energy of the compound nucleus is increased is clearly shown by the results. In the fission of U/sup 238/ the yield at mass 161 is increased 2.9 times at the higher neutron energy. No previous measurements have been published on radiochemical studies of the fission of U/sup 238/at these neutron energies beyond mass 144 except at mass 156 for the lower neutron energy. (auth)
Date:
June 1, 1958
Creator:
Bunney, L. R.; Scadden, E. M.; Abriam, J. O. & Ballou, N. E.
System:
The UNT Digital Library
Responsibility of the Surgeon in Comprehensive Care of the Hospitalized Patient
Article reprinted from the Texas State Journal of Medicine, addressing the issues of overcrowding and lack of staff in hospitals, as well as nursing practices.
Date:
June 1958
Creator:
Blocker, T. G., Jr.
System:
The Portal to Texas History
TEST OF A DIRECT CYCLE NUCLEAR TURBOJET SYSTEM
This paper discusses research and development effort on a direct-cycle air-cooled nuclear reactor and propulsion equipment. The reactor experiment was designed, constructed, and tested during the period 1953 to 1956 to prove the feasibility of operating a turbojet engine from the heat produced by an air-cooled reactor. A description is given of the reactor, turbomachinery, shielding, control system, and associated equipment used in the first propulsion system test which was run in 1956. The system consisted of a modified J-47 turbojet engine arranged so that compressed air from the compressor was ducted through a shielded reactor and a chemical combustor in series before passing through the turbine and exhaust nozzle. The experimental reactor was based on a unique design concept in which water moderated at low temperature is contained in an aluminum core structure. The air-cooled metal fuel elements containing enriched uranium were arranged in passages running through the reactor. Thermal insulation was provided to protect the aluminum structure from the high temperature fuel elements and air, and to reduce heat losses to the moderator water. The entire reactor shield and turbojet assembly was mounted on a four-rail flat car for easy transfer by a shielded locomotive from the test …
Date:
June 1, 1958
Creator:
Shoults, D. R.
System:
The UNT Digital Library
Potential Physical Processes Explaining the Observed Spectral Signature of Cloudy Column Solar Radiation Absorption
The results presented here have shown that the spectral signature of absorption in a cloudy layer could be duplicated (except for the 1.06 {micro}m region) with a rather sophisticated radiative transfer model, if the absorption by both aerosol and cloud droplets was enhanced. In the case of aerosol, highly absorbing (imaginary part of refractive index between 0.1 and 0.01), small (2 - 5 nm) particles dramatically improved the match between observations and model computations. Duplication of the observed cloud absorption required a thin layer of drizzle (large droplets). The only feature remaining unexplained at this time is the enhanced absorption at 1.06 {micro}m. These results are only based on one day of observations and need to be verified. This study suggests the need for additional co-located broadband and spectral observations in clear and cloudy sky conditions in different atmospheric regimes. In-situ aerosol and cloud droplet microphysical measurements will be crucial to unravel the role of these particles in the ''enhanced absorption'' issue. Finally, accurate absorption measurements are needed at 1.06 {micro}m to understand observed absorption in that spectral region.
Date:
June 1, 1960
Creator:
Gautier, Catherine; O'Hirok, William & Ricchiazzi, Paul
System:
The UNT Digital Library
HIGH TEMPERATURE X-RAY DIFFRACTION TECHNIQUES FOR ACTIVE METALS
Techniques are described for obtaining x ray diffraction information on active metals at high temperatures. One method is used to 1000 deg C with rare earths; the other method is used to 2200 deg C with tungsten, and to 1400 deg C with some f the higher melting rare earths. The latter approach permits simultaneous measurement of resistance of the specimens vs temperature and the diffraction pattern, which facilitates the characterizing of the high temperature forms of the metals. (auth)
Date:
June 1, 1961
Creator:
Hanak, J.J. & Daane, A.H.
System:
The UNT Digital Library
X-RAY DIFFRACTION CAMERA FOR THE ALIGNMENT OF LARGE SINGLE CRYSTALS
A back-reflection Laue camera with three rotation axes and three orthogonal translation axes is described. This camera allows the alignment of large single crystals with a precision of plus or minus 0.25 deg . The degree of single crystallinity of a specimen may be examined. In addition it is possible to accurately mark a crystal for subsequent utilization. (auth)
Date:
June 1, 1961
Creator:
Meyerhoff, R.W.; Bailey, D.M. & Smith, J.F.
System:
The UNT Digital Library
Recent Developments in Multichannel Pulse-Height Analysis
The state of the pulse-height analyzing art is reviewed with particular emphasis on the developments of the past two years. The discussion includes consideration of multidimensional instruments, calibration-stabilizing techniques, and some of the auxiliary features that are becoming increasingly available on commercial instruments. Possible future developments with respect to resolving time and memory organization is discussed briefly. (auth)
Date:
June 1, 1962
Creator:
Chase, R.L.
System:
The UNT Digital Library
EPSILON HYPERONS IN THE REACTION K- + P -->+ K+
None
Date:
June 5, 1962
Creator:
Alvarez, Luis W.; Berge, J. Peter; Kalbfleisch, George R.; Button-Shafer, Janice; Solmitz, Frank T.; Stevenson, M. Lynn et al.
System:
The UNT Digital Library
A PULSED EDDY CURRENT TEST SYSTEM USING REFLECTED FIELDS
An eddy current test system is described in which the test information is detected as a series of fields reflected from the metal surface and interior. Pulsed electromagnetic fields are caused to impinge upon the test specimen. These fields are restricted to a small cross sectional area over a path in space long enough to be useful for test purposes by devices called mask-apenture assemblies. This approach provides a number of advantages over conventional eddy current methods of comparable capabilities, including superior surface resolution, a reduction in circuit complexity, and an improvement in stability and reliability. Various applications and test results are discussed. (auth)
Date:
June 11, 1962
Creator:
Renken, C. J.
System:
The UNT Digital Library
Secondary Isotope Effects in Molecular Structure
A study was made to determine whether secondary iso tope effects also occur in molecular structure. Electron diffraction studies were carried out on ethane and deuteroethane. In C/sub 2/H/sub 6/ the mean C-C and C-H bond lengths found agreed very closely with values determined for other paraffin hydrocarbons, and the C--H bond showed a normal primary isotope effect (~ 0.005 A) similar to that found in methane when H is replaced by O. The output of the leastsquares analysis suggested that the mean C-- C bond length in C/sub 2/D/sub 6/ is shorter than in C/sub 2/H/sub 6/ and by about 0.004 A. Th e decrease seemed to be real for the apparent uncertainty was not much greater than 0.001 A. (M.C.G.)
Date:
June 15, 1962
Creator:
Bartell, L. S.
System:
The UNT Digital Library
Cryogenic targets for electron scattering
Over the past few years we have developed a system which allows several different liquid hydrogen and liquid deuterium targets to be placed in the electron beam of the Stanford Mark III accelerator and which can be operated from a remote position. The geometry of our scattering chamber requires that the motion (of the various targets into position) must be in the vertical direction, but that the overall height of the system be constant. These requirements are met by using an internal retractable bellows arrangement to raise and lower the target cells. As many as five cells can be used in conjunction with a single reservoir system.
Date:
June 1, 1963
Creator:
Chambers, B.; Hofstadter, R.; Marcum, A. & Yearian, M. R.
System:
The UNT Digital Library
THE MUTUAL SOLID SOLUBILITY OF HAFNIUM CARBIDE AND URANIUM MONOCARBIDE
In contrast to the miscibility gap previously reported for the system HfC-UC, complete solid solubility of these carbides at 2000 c- C was demonstrated. Included are the preparation, heating conditions, x-ray data, and chemical analysis of the starting materials and the solid solutions. (P.C.H.)
Date:
June 1, 1963
Creator:
Krikorian, N. H.; Witteman, W. G. & Bowman, M. G.
System:
The UNT Digital Library
Physics Performance of the EBWE in Its Zero to 100 Mw Operation
The distribution of fuel elements in the EBWR core is described. Spike elements with boron steel strips were provided in the core for burnup allowance. A calibration of the control rod system with Zircaloy followers was made. Void coefficient measurements were made for two different H/sub 3/BO/sub 3/ concentrations. Power runs were made, and reactivity loss vs. power characteristic was obtained. Steam remaining in the core, or carryunder,'' was indicated. Some of the spikes were removed for increasing the power to 80 Mw. Calculations were made of the reactivity loss with coolant void and of the average void vs. reactor power. (D. L.C.)
Date:
June 1963
Creator:
Iskenderian, H. P.
System:
The UNT Digital Library
The Role of Flexibility in Enzyme Action
None
Date:
June 1, 1963
Creator:
Koshland, Daniel E., Jr.
System:
The UNT Digital Library
A Study of Low Frequency Motions in Polyethylene and the Paraffin Hydrocarbons by Neutron Inelastic Scattering
None
Date:
June 1963
Creator:
Berger, M.; Boutin, H.; Danner, H. R. & Stafford, G. J.
System:
The UNT Digital Library
Variation of the Half-Wave Potential of Organic Compounds With pH. Report No. 78
From 19th International Union of Pure and Applied Chemistry Congress, London. A systematic introduction is presented to the subject of the variation with pH of the polarographic half-wave potential, which is probably the most readily measured electrochemical energetic parameter of organic compounds. Emphasis is placed on (a) the types of relationships observed for both reversible and irreversible electrode processes, (b) the mathematical formulation of these relationships, (c) the structural, mechanistic, kinetic, and environmental factors influencing such relationships, and (d) the presumptive physical causes for such relationships, e.g., the effect of pH on the electrochemical kinetics. Although the discussion is primarily concerned with behavior in aqueous solution, the conclusions drawn are equally valid for nonaqueous media in which hydrogen ion or some other Lewis acid can play a significant role. The half-wave potential for an organic electrode process may be independent of pH, or may vary lineanly or sigmoidally; other types of relationships observed are likely to be combinations of such effects. These variations may be due (a) to direct participation of hydrogen ion in the transition state involving the electroactive site in the organic molecule and the electron source, e.g., polarization of the bond to be broken, (b) to control …
Date:
June 21, 1963
Creator:
Elving, P. J.
System:
The UNT Digital Library
RECENT DEVELOPMENTS IN THE THEORY OF NEUTRON CAPTURE THERAPY (JANUARY 1958) AND SYSTEMS FOR NEUTRON CAPTURE THERAPY: GENERAL CONSIDERATIONS (1959)
None
Date:
June 1, 1964
Creator:
Frigerio, N.A.
System:
The UNT Digital Library
Time Eigenvalues and Degenerate Kernels in Thermalization
None
Date:
June 1, 1964
Creator:
Corngold, N. & Shapiro, C.S.
System:
The UNT Digital Library
THE WKB METHOD IN THE STUDY OF NEUTRON THERMALIZATION IN GRAPHITE
None
Date:
June 1, 1964
Creator:
Ghatak, A. K.
System:
The UNT Digital Library
POLARIZATION IN PROTON-PROTON SCATTERING USING A POLARIZED TARGET.Part I. 0.330 to 0.740 GeV Part II 1.70 to 6.15 GeV
Using the Berkeley polarized-proton target, we have measured the polarization parameter P({theta}) for proton-proton (p-p) scattering. The measurements were obtained at beam kinetic energies of 0.330, 0.680, and 0.740 GeV at the 184-in. synchrocyclotron and 1.70, 2.85, 3.50, 4.00, 5.05, and 6.15 GeV at the Bevatron. The angular regions measured were from 20 to 100 degrees center of mass; the square of the four-momentum transfer ranged from 0.1 to 0.8 (GeV/c){sup 2}.
Date:
June 24, 1964
Creator:
Betz, F. W.; Arens, J. F.; Dost, H. E.; Hansroul, M. J.; Holloway, L. E.; Schultz, C. H. et al.
System:
The UNT Digital Library