Access
Partner
Oklahoma Historical Society
460
UNT Libraries Special Collections
393
UNT Libraries Government Documents Department
340
Texas Historical Commission
168
UNT Libraries
29
Sterling Municipal Library
26
Carl Albert Congressional Research and Studies Center
16
Red River County Public Library
12
Abilene Christian University Library
9
Atlanta Public Library
9
81 More
Collection
Texas Digital Newspaper Program
338
KXAS-NBC 5 News Collection
308
Oklahoma Publishing Company Photography Collection
301
Office of Scientific & Technical Information Technical Reports
283
THC National Register Collection
168
Tocker Foundation Grant
167
Oklahoma Digital Newspaper Program
158
Texas State Publications
30
Chickasha Newspaper Collection
29
LGBT Collections
29
139 More
Degree Department
States
Year
Month
1,764 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,764
next
[925 N. Link - Edwin W. and Eva Link House]
Photograph of the southeast corner of the "Edwin and Eva Link House," located at 925 N. Link in Palestine, Texas. It has Queen Anne-style architecture.
Date:
March 1991
Creator:
Emrich, Ron
Object Type:
Photograph
System:
The Portal to Texas History
15th Street News (Midwest City, Okla.), Vol. 19, No. 19, Ed. 1 Friday, March 1, 1991
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
March 1, 1991
Creator:
Garland, S. E.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
1991 Conference summary on computing in high energy physics
The papers presented at the Conference cover a wide range of important issues in software engineering and management. They indicate a trend toward more use of commercial systems and standards. This trend will likely have a significant influence on plans for future systems.
Date:
March 1, 1991
Creator:
Loken, S.C.
Object Type:
Article
System:
The UNT Digital Library
[72nd Texas Legislature, Regular Sessions, House Bill No. 638]
Bill introduced by the Texas House of Representatives relating to the observance of state holidays and establishing Martin Luther King, Jr. Day a state holiday. "Mario Marcel Salas Copy" is written at the top of the first page.
Date:
March 1991
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
Abbott Hay Quality Inspection
Photograph of David Wells, Soil Conservationist, and Rex Abbott, farmer, discussing hay quality across three photographs. People shown in photo go as followed from left to right: David Wells and Rex Abbott. The original photograph sleeve proclaims, "David Wells, Soil Conservationist, McAlester, A. O. discuss hay quality with Rex Abbott, farmer."
Date:
March 1991
Creator:
Phillips, F. Dwain
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Accuracy and Cost Effectiveness of Manual and Automated Water-Level Monitoring Technology
Relative water-surface elevations are used to characterize the unconfined aquifer beneath the Hanford Site. Simultaneous and frequent, measurements in areas of rapid change have been avoided because of cost, even though both are important, and in some cases essential, for aquifer characterization. The objective of this study was to evaluate, demonstrate, and report on the most cost-effective methods of obtaining water-level data for characterizing aquifers at hazardous waste sites. Aquifer characterization is needed to define hydraulic flow gradients, which determine rate and direction of contaminant transport. Such characterization requires accurate measurements of groundwater elevation. Automated datalogging equipment offers substantial benefits over manual measurements, including a lower cost per measurement. Staff at the Pacific Northwest Laboratory identified potentially suitable equipment and requested it from vendors for evaluation. Instrument performance was compared with manufacturer';s specifications and laboratory requirements. Precision, accuracy, hysteresis, and short-term drift were tested. Test results are summarized in this report, and several suitable pieces of equipment were found.
Date:
March 1, 1991
Creator:
Campbell, M.D.; Schalla, R. & Newcomer, D.R.
Object Type:
Report
System:
The UNT Digital Library
Achieve!, March 1991
Periodic newsletter discussing information related to student drop-out rates, relevant legislative issues, and prevention programs. This issue focuses on peer tutors in public schools.
Date:
March 1991
Creator:
Texas Research League
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
The active personnel dosimeter---APFEL enterprises superheated drop detector
The Active Personnel Dosimeter (APD) provides a digital readout of events caused by neutrons interacting with superheated liquid droplets. The droplets are suspended in a gel held in a replaceable cartridge. Upon neutron interaction, the superheated droplet vaporizes, forming a bubble. The sound produced in this process is recorded by transducers that sense the accompanying pressure pulse. The APD electronically discriminates against spurious noise and vibration. Studies with the production prototype APDs indicate that the detector response is linear up to about 0.40 mSv, with large variations sometimes from predicted values and between cartridges at higher dose equivalents. The response to standard neutron sources (bare {sup 252}Cf, PuBe, PuB, PuF, PuLi) is reported and compared with the expected response. Unirradiated cartridges self-nucleate when heated to temperatures of 46{degrees}C. The APD is insensitive to low-energy photons but responds to high-energy photons and electrons. 8 refs., 2 figs., 3 tabs.
Date:
March 1, 1991
Creator:
Ipe, N. E.; Donahue, R. J. & Busick, D. D.
Object Type:
Article
System:
The UNT Digital Library
Activities of the Oil Implementation Task Force, December 1990--February 1991; Contracts for field projects and supporting research on enhanced oil recovery, April--June 1990
The Oil Implementation Task Force was appointed to implement the US DOE's new oil research program directed toward increasing domestic oil production by expanded research on near- or mid-term enhanced oil recovery methods. An added priority is to preserve access to reservoirs that have the largest potential for oil recovery, but that are threatened by the large number of wells abandoned each year. This report describes the progress of research activities in the following areas: chemical flooding; gas displacement; thermal recovery; resource assessment; microbial technology; geoscience technology; and environmental technology. (CK)
Date:
March 1, 1991
Creator:
Tiedemann, H.A. (ed.) (USDOE Bartlesville Project Office, OK (USA))
Object Type:
Report
System:
The UNT Digital Library
The Age, Volume [12], Number 3, March 1991
Monthly publication containing information related to Chambers County, Texas, including current events of the Chambers County Historical Commission, the Wallisville Heritage Park, and the Chambers County historical and genealogical societies; reprinted newspaper articles about county events and citizens; and historical news and records.
Date:
March 1991
Creator:
Wallisville Heritage Park (Organization)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Alternate design concept for the SSC dipole magnet cryogenic support post
New materials and developments in the field of advanced composites have created the opportunity to take a fresh look into the design of the cryogenic supports for SSC collider dipole cryostats. Although the present reentrant post design meets the structural and thermal requirements, its assembly requires precision and proficiency. The objective of the proposed alternate concept is to reduce the overall cost of the support post by means of simplifying and optimizing its component design and assembly process. The present shrink fitted tube assembly may potentially be replaced by injection molded parts. New resin systems with lower thermal conductivity and high strength properties enable the utilization of automated production techniques such as injection molding and filament winding. This paper will provide analysis and design information for the alternate support post concept and compare its test performance and cost to the present support post. 3 refs., 12 figs., 4 tabs.
Date:
March 1, 1991
Creator:
Lipski, A.; Nicol, T.H. & Richardson, R.
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 90, No. 301, Ed. 1 Friday, March 1, 1991
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 1, 1991
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analysis, Volume 12, Number 3, March 1991
Periodic newsletter discussing information related to legislation, state finance, and other topics related to Texas government. This issue "presents the latest interstate data available on state and local government finances from the U.S. Census Bureau" (p. 1).
Date:
March 1991
Creator:
Texas Research League
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
An analytic solution of high. beta. equilibrium in a large aspect ratio tokamak
An analytic solution of the high {beta} ({epsilon}{bar {beta}}{sub p} {approximately} {beta}q{sup 2}/{epsilon} {much gt} 1) equilibrium of a large aspect ratio tokamak is presented. Two arbitrary flux functions, the pressure profile p({psi}) and the safety factor profile q({psi}), specify the equilibrium. The solution splits into two asymptotic regions: the core region where {psi} is a function of the major radius alone and a narrow boundary layer region adjoining the conducting wall. The solutions in the two regions are asymptotically matched to each other. For monotonic pressure profiles, the Shafranov shift is equal to the minor radius. For {beta} much bigger than one, the solution contains a region (in place of the magnetic axis) of zero magnetic field and constant pressure. At high {beta} the quantity {beta}{sub I}, which is essentially proportional to the pressure over the total current squared, is largely independent of pressure. We discuss the important ramifications of limited {beta}{sub I} for high {beta} reactors. Generalizations to shaped cross sections and hollow pressure profiles are outlined. We also consider the problem of equilibrium reconstruction in the high {beta} regime. 8 refs., 7 figs.
Date:
March 1, 1991
Creator:
Cowley, S.C.; Kaw, P.K.; Kelly, R.S. & Kulsrud, R.M.
Object Type:
Report
System:
The UNT Digital Library
Angelo State University Management, Instruction, and Research Center Progress Report: March 1991
Biennial progress report of the Angelo State University Management, Instruction, and Research Center providing a summary of completed work and ongoing projects related to business in agriculture.
Date:
March 1991
Creator:
Angelo State University. Management, Instruction, and Research Center.
Object Type:
Report
System:
The Portal to Texas History
[Ann Richards and Rosanne Cash at South by Southwest]
Photograph of Rosanna Cash and Ann Richards standing next to each other at South by Southwest (SXSW). Ann Richards is wearing a light-colored suit and Rosanne Cash is wearing a navy blue, long-sleeve outfit.
Date:
March 1991
Creator:
Davis, Lisa
Object Type:
Photograph
System:
The Portal to Texas History
Annotations, South Texas College of Law (Houston, Tex.), Vol. 19, No. 8, Ed. 1, March, 1991
Student newspaper from South Texas College of Law that includes local, state and campus news along with advertising.
Date:
March 1991
Creator:
Daniel, Raymond
Object Type:
Newspaper
System:
The Portal to Texas History
Annual Meeting of the Texas Society, Sons of the American Revolution, 1991
Program for the 96th annual meeting of the Texas Society Sons of the American Revolution, held from March 8 through the 10, 1991, at the Embassy Suites, in Abilene, Texas, including a list of sessions for the meeting and related information about the organization and conference. The meeting was called to order by President David H. Peterson, in the Ballroom of the Embassy Suites.
Date:
March 1991
Creator:
Sons of the American Revolution. Texas Society.
Object Type:
Pamphlet
System:
The UNT Digital Library
Annual Report: Photovoltaic Subcontract Program FY 1990
This report summarizes the progress of the Photovoltaic (PV) Subcontract Program of the Solar Energy Research Institute (SERI) from October 1, 1989 through September 30, 1990. The PV Subcontract Program is responsible for managing the subcontracted portion of SERI's PV Advanced Research and Development Project. In fiscal year 1990, this included more than 54 subcontracts with a total annualized funding of approximately $11.9 million. Approximately two-thirds of the subcontracts were with universities at a total funding of nearly $3.3 million. The six technical sections of the report cover the main areas of the subcontract program: the Amorphous Silicon Research Project, Polycrystalline Thin Films, Crystalline Silicon Materials Research, High-Efficiency Concepts, the New Ideas Program, and the University Participation Program. Technical summaries of each of the subcontracted programs provide a discussion of approaches, major accomplishments in FY 1990, and future research directions. Another section introduces the PVMaT project and reports on its progress.
Date:
March 1, 1991
Creator:
Summers, K. A.
Object Type:
Report
System:
The UNT Digital Library
Annual Report to the Congress, Fiscal Year 1990
Annual report detailing the progress and budget of the Office of Technology Assessment.
Date:
March 1991
Creator:
Office of Technology Assessment
Object Type:
Text
System:
The UNT Digital Library
Antiproton production for Tevatron
Needs to improve the Fermilab Pbar Source for the Tevatron Upgrade and discrepancies in predictions of the antiproton yields have forced us to develop the production model based on the modern data and to incorporate this model to the current version of MARS10 code. The inclusive scheme of this code with the use of statistical weights allows the production of antiprotons to be enhanced within the phase space region of interest, which is extremely effective for optimization of Pbar Source parameters and for developing of such an idea as a beam sweeping system. Antiproton production model included in the modified version of our Monte Carlo program MARS10M for the inclusive simulation of hadronic cascades, as for other particles throughout the program, is based on a factorization approach for hadron-nucleus differential cross-section. To describe antiproton inclusive spectra in pp-collisions a phenomenological model has been used modified in the low-Pt region. The antiproton production in pion-nucleon interactions is described in the frame of our simple phenomenological model based on the modern data. In describing of the of antiproton production cross-sections ratio in hadron-nucleus and hadron-nucleon collisions the ideas of soft hadronization of color strings and all the present experimental data have been …
Date:
March 1, 1991
Creator:
Azhgirey, I. L.; Mokhov, N. V. & Striganov, S. I. (Gosudarstvennyj Komitet po Ispol'zovaniyu Atomnoj Ehnergii SSSR, Serpukhov (USSR). Inst. Fiziki Vysokikh Ehnergij)
Object Type:
Report
System:
The UNT Digital Library
The APS transfer line from linac to injector synchrotron
This note describes the low-energy-transfer-line designed for the APS. The low energy transfer line constitutes two transport lines. One of these lines runs from linac to the positron accumulator ring, also called ``PAR``, and is 23.7138 m long. The second part of the low energy transport line runs from the ``PAR`` to the injector synchrtoron and is about 30.919 m long. The above length includes two quadrupoles, a bend magnet and a septum magnet in the injector synchrotron.
Date:
March 1, 1991
Creator:
Koul, R. K. & Crosbie, E.
Object Type:
Report
System:
The UNT Digital Library
Assessing Housing Markets for the Elderly
A report of the demographic, housing, and socioeconomic characteristics of the elderly.
Date:
March 1991
Creator:
Etter, Wayne E. & Murdock, Steve H.
Object Type:
Report
System:
The Portal to Texas History
Assessment of hydrologic impact of extending exploratory shafts into the Calico Hills nonwelded tuff unit at Yucca Mountain, Nevada
The US Department of Energy (DOE) is performing analyses to address an objection by the US Nuclear Regulatory Commission to plans in the Consultation Draft of the Site Characterization Plan for direct excavation of the Calico Hills nonwelded (CHn) unit within the repository exploration block at Yucca Mountain, Nevada. The excavation was planned as part of site characterization activities for the potential high-level nuclear waste repository at Yucca Mountain. This characterization activities for the potential high-level nuclear waste repository at Yucca Mountain. This characterization activity has been deferred, pending the results of a risk/benefit analysis of alternative methods for obtaining needed characterization data from CHn unit. The benefits from characterizing the CHn unit are generally related to obtaining information leading to improved confidence in predictions of site performance. The risks are generally associated with potential adverse impacts to site performance that result from excavation or other intrusion into the CHn unit. The purpose of the risk/benefit analysis is to produce a recommendation to the Director, Regulatory and Site Evaluation Division. DOE/Yucca Mountain Site Characterization Project Office for a strategy for characterizing the CHn unit. The recommendation will describe characterization activities that are expected to provide the needed information while limiting …
Date:
March 1, 1991
Creator:
Nichols, W.E.; Freshley, M.D. & Rockhold, M.L.
Object Type:
Report
System:
The UNT Digital Library