Partner
Oklahoma Historical Society
230
UNT Libraries Government Documents Department
180
UNT Libraries Special Collections
37
National Museum of the Pacific War/Admiral Nimitz Foundation
10
Sterling Municipal Library
9
Carl Albert Congressional Research and Studies Center
6
UNT Libraries
6
Alvin Community College
5
San Antonio Public Library
5
Bastrop Public Library
4
50 More
Collection
Jim Argo Collection
176
Office of Scientific & Technical Information Technical Reports
141
Texas Digital Newspaper Program
92
Oklahoma Digital Newspaper Program
60
Tocker Foundation Grant
43
Congressional Research Service Reports
28
KXAS-NBC 5 News Collection
23
Chickasha Newspaper Collection
17
National Museum of the Pacific War Digital Archive
10
Altus Times-Democrat
9
81 More
Degree Department
Country
Year
Month
Day
Language
Results:
1 - 24 of
572
next
Alpha Particle Physics Experiments in the Tokamak Fusion Test Reactor
Alpha particle physics experiments were done on the Tokamak Fusion Test Reactor (TFTR) during its deuterium-tritium (DT) run from 1993-1997. These experiments utilized several new alpha particle diagnostics and hundreds of DT discharges to characterize the alpha particle confinement and wave-particle interactions. In general, the results from the alpha particle diagnostics agreed with the classical single-particle confinement model in magnetohydrodynamic (MHD) quiescent discharges. Also, the observed alpha particle interactions with sawteeth, toroidal Alfvén eigenmodes (TAE), and ion cyclotron resonant frequency (ICRF) waves were roughly consistent with theoretical modeling. This paper reviews what was learned and identifies what remains to be understood.
Date:
December 14, 1998
Creator:
Budny, R. V.; Darrow, D. S.; Medley, S. S.; Nazikian, R. & Zweben, S. J.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 99, No. 235, Ed. 1 Monday, December 14, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 14, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 108, No. 38, Ed. 1 Monday, December 14, 1998
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
December 14, 1998
Creator:
Schwind, Jim & Looby, Edward
Object Type:
Newspaper
System:
The Portal to Texas History
Ash & Pulverized Coal Deposition in Combustors & Gasifiers
Gravity- driven granular flow of slightly frictional particles down an inclined, bumpy chute is studied. A modified kinetic model which includes the frictional energy loss effects is used, and the boundary conditions for a bumpy wall with small friction are derived by ensuring the balance of momentum and energy. At the free surface, the condition of vanishing of the solid volume fraction is used. The mean velocity, the fluctuation kinetic energy and the solid volume fraction profiles are evaluated. It is shown that steady granular gravity flow down a bumpy frictional chute could be achieved at arbitrary inclination angles. The computational results also show that the slip velocity may vary considerably depending on the granular layer height, the surface boundary roughness, the fric-tion coefficient and the inclination angles. The model predictions are compared with the existing experimental and simulation data, and good agreement is observed. In particular, the model can well predicate the features of the variation of solid volume fraction and fluctuation energy profiles for different particle- wall friction coeffi-cients and wall roughnesses.
Date:
December 14, 1998
Creator:
Ahamadi, Goodarz
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 77, No. 38, Ed. 1 Monday, December 14, 1998
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 14, 1998
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
[Card from Sam Blain, Jr., to Bill and Mary Cheek]
Card sent to Bill and Mary Cheek by Sam Blain, Jr., introducing a copy of the Musée Rodin catalog that belonged to artist Olin Herman Travis.
Date:
December 14, 1998
Creator:
Blain, Sam, Jr.
Object Type:
Text
System:
The Portal to Texas History
Characterization of Sputter Deposited Thin Film Scandate Cathodes for Miniaturized Thermionic Converter Applications
We have successfully developed a method for fabricating scandate-based thermionic emitters in thin film form. The primary goal of our effort is to develop thin film emitters that exhibit low work fimction, high intrinsic electron emissivity, minimum thermal activation properties and that can be readily incorporated into a microgap converter. Our approach has been to incorporate BaSrO into a SqOq matrix using rf sputtering to produce thin films. Diode testing has shown the resulting films to be electron emissive at temperatures as low as 900 K with current densities of 0.1 mA.cm-2 at 1100 K and saturation voltages. We calculate an approximate maximum work function of 1.8 eV and an apparent emission constant (Richardson's constant, A*) of 36 mA.cm-2.K-2. Film compositional and structural analysis shows that a significant surface and subsurface alkaline earth hydroxide phase can form and probably explains the limited utilization and stability of Ba and its surface complexes. The flexibility inherent in sputter deposition suggests alternate strategies for eliminating undesirable phases and optimizing thin film emitter properties.
Date:
December 14, 1998
Creator:
King, D.B.; Ruffner, J.H. & Zavadil, K.R.
Object Type:
Article
System:
The UNT Digital Library
Corrosion testing of stainless steel-zirconium metal waste form.
Stainless steel-zirconium (SS-Zr) alloys are being considered as waste forms for the disposition of metallic waste generated during the electrometallurgical treatment of spent nuclear fuel. The waste forms contain irradiated cladding hulls, components of the alloy fuel, noble metal fission products, and actinide elements. The baseline waste form is a stainless steel-15 wt% zirconium (SS-15Zr) alloy. This article presents microstructure and some of the corrosion studies being conducted on the waste form alloys. Electrochemical corrosion, immersion corrosion, and vapor hydration tests have been performed on various alloy compositions to evaluate corrosion behavior and resistance to selective leaching of simulated fission products. The SS-Zr waste forms are successful at the immobilization and retention of fission products and show potential for acceptance as high-level nuclear waste forms.
Date:
December 14, 1998
Creator:
Abraham, D. P.
Object Type:
Article
System:
The UNT Digital Library
DOD Animal Research: Improvements Needed in Quality of Biomedical Research Database
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO examined several issues related to the Department of Defense's (DOD) administration of its animal research programs, focusing on: (1) the extent to which DOD's research using animals addresses validated military objectives, does not unnecessarily duplicate work done elsewhere, and incorporates methods to reduce, replace, and refine the use of animals; and (2) problems with the accuracy of information in the Biomedical Research Database (BRD)."
Date:
December 14, 1998
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, December 14, 1998
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 14, 1998
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Food Stamp Program: Information on Employment and Training Activities
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on: (1) the number of able-bodied adults without dependents who are receiving food stamp benefits, the number who are required to meet the work requirements, and the number who are exempted from the requirements; (2) the number of able-bodied adults without dependents participating in qualifying employment and training or Workfare programs; and (3) the amounts of federal grant funds that states spent through the first three quarters of fiscal year 1998 for employment and training or workfare programs for food stamp recipients."
Date:
December 14, 1998
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
IRS Systems Security: Although Significant Improvements Made, Tax Processing Operations and Data Still at Serious Risk
A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Internal Revenue Service's (IRS) progress in correcting serious computer security weaknesses at five IRS facilities, focusing on: (1) additional security weaknesses identified at the five facilities and at an IRS facility not included in GAO's previous report; and (2) steps IRS has taken or plans to take to implement a service-wide computer security management program."
Date:
December 14, 1998
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Model Etch Profiles for Ion Energy Distribution Functions in an Inductively Coupled Plasma Reactor
Rectangular trench profiles are modeled with analytic etch rates determined from measured ion distribution functions. The pattern transfer step for this plasma etch is for trilayer lithography. Argon and chlorine angular ion energy distribution functions measured by a spherical collector ring analyzer are fit to a sum of drifting Maxwellian velocity distribution functions with anisotropic temperatures. The fit of the model ion distribution functions by a simulated annealing optimization procedure converges adequately for only two drifting Maxwellians. The etch rates are proportional to analytic expressions for the ion energy flux. Numerical computation of the etch profiles by integration of the characteristic equations for profile points and connection of the profiles points is efficient.
Date:
December 14, 1998
Creator:
Abraham-Shrauner, B.; Chen, W. & Woodworth, J.R.
Object Type:
Article
System:
The UNT Digital Library
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Myriad Gardens and Oklahoma City Skyline
Photograph of holiday decorations at the Myriad Gardens and Oklahoma City Skyline.
Date:
December 14, 1998
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History