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428 Matching Results
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[Letter from Cassandra Broadus to Sylvia Russell, November 8, 1990]
Photocopy of a letter from Cassandra Broadus, North Texas Institute for Educators on the Visual Arts, to Sylvia Russell, Pilot Point Art Supervisor. In regards to Broadus modeling a DBAE, discipline-based art education, lesson for the teachers and participants at the meeting in Pilot Point and hoping they picked up something they will be able to use for their own classrooms. Broadus ends the letter with details about the upcoming visitation with a man named Vicente, for a "Potter on the Porch" lesson.
Date:
November 8, 1990
Creator:
Broadus, Cassandra
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter and Nancy Cason to Janice Wiggins, May 8, 1990]
Photocopy of a letter from Bill McCarter and Nancy Cason, North Texas Institute for Educators on the Visual Arts, to Janice Wiggins, Dallas ISD. Iin regards of Dallas' participation in the North Texas Institute for Educators on the Visual Arts. McCarter and Cason write that after reviewing their budget they have found that they will be able to fund one team from DISD at 100% for the first year at the Institute, yet after one year they are unsure that they'll be able to get more funding from the Getty Center to allow Dallas as a consortium. Included at the end of the letter is a mock-up of what Dallas will be entitled to during their Summer institute Services.
Date:
May 8, 1990
Creator:
McCarter, William & Cason, Nancy
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Raymond B. Kelly III to Jack Davis, May 8, 1990]
Photocopy of a letter from Raymond B. Kelly III, an associate of the William E. Scott Foundation to Jack Davis, co-director of North Texas Institute for Educators on the Visual Arts. The letter is in regards to having received the grant proposal for $10,000 and while North Texas Institute for Educators on the Visual Arts is an excellent program the foundation is unable to assist because of current commitments.
Date:
May 8, 1990
Creator:
Kelly, Raymond B.
Object Type:
Letter
System:
The UNT Digital Library
A Status Report of Hawaiian Hawk Nesting Activities at the Proposed Well Site No. 2
On August 11, 1990 during an ornithological survey at the True/Mid Pacific Geothermal Venture proposed well site No.2, a Hawaiian hawk (Buteo solitarius) nest with a nestling was found approximately 430 feet from the proposed well pad clearing. The U.S. Fish and Wildlife Service and the State of Hawaii have listed the Hawaiian hawk as an endangered species. Future development in this area could be impacted by the presence of this endangered avian species and its nest in such close proximity to the proposed well site. This report summarizes the results of observations at the nest on August 12, 19 and 25 and September 2, 1990.
Date:
September 8, 1990
Creator:
Jeffrey, Jack
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Jamaican gangs]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, covering a news story about Jamaican gangs, showing a police press meeting about the cases and still image of an unidentified man. This story aired at 10pm.
Date:
January 8, 1990, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[Memo: NGLTF to National Lobby Day Activists]
Memo to NGLTF lobbyists informing them of recent Congressional votes on certain legislation and orienting them to the lobby's agenda for the last weeks of the 101st Congress.
Date:
August 8, 1990
Creator:
National Gay and Lesbian Task Force (U.S.)
Object Type:
Letter
System:
The UNT Digital Library
[Press release: Scholarships available for Creating Change Conference]
A press release from the National Gay & Lesbian Task Force (NGLTF) advertising scholarships offered for people of color and people with disabilities to attend NGLTF's Creating Change Conference in Minneapolis.
Date:
August 8, 1990
Creator:
National Gay & Lesbian Task Force
Object Type:
Text
System:
The UNT Digital Library
The Canadian Record (Canadian, Tex.), Vol. 100, No. 6, Ed. 1 Thursday, February 8, 1990
Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date:
February 8, 1990
Creator:
Ezzell, Ben & Ezzell, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
The Tulia Herald (Tulia, Tex.), Vol. 82, No. 10, Ed. 1 Thursday, March 8, 1990
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
March 8, 1990
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
The Tulia Herald (Tulia, Tex.), Vol. 82, No. 45, Ed. 1 Thursday, November 8, 1990
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
November 8, 1990
Creator:
Reynolds, Jim
Object Type:
Newspaper
System:
The Portal to Texas History
The Tulia Herald (Tulia, Tex.), Vol. 82, No. 6, Ed. 1 Thursday, February 8, 1990
Weekly newspaper from Tulia, Texas that includes local, state and national news along with extensive advertising.
Date:
February 8, 1990
Creator:
Tooley, Wendell
Object Type:
Newspaper
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 100, No. 10, Ed. 1 Thursday, March 8, 1990
Weekly newspaper from Canadian, Texas that includes local, state and national news along with extensive advertising.
Date:
March 8, 1990
Creator:
Ezzell, Ben & Ezzell, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
(Aerodynamic focusing of particles and heavy molecules)
By accelerating a gas containing suspended particles or large molecules through a converging nozzle, the suspended species may be focused and therefore used to write fine lines on a surface. Our objective was to study the limits on how narrow this focal region could be as a function of particle size. We find that, for monodisperse particles with masses m{sub p} some 3.6 {times} 10{sup 5} times larger than the molecular mass m of the carrier gas (diameters above some 100{angstrom}), there is no fundamental obstacle to directly write submicron features. However, this conclusion has been verified experimentally only with particles larger than 0.1 {mu}m. Experimental, theoretical and numerical studies on the defocusing role of Brownian motion for very small particles or heavy molecules have shown that high resolution (purely aerodynamic) focusing is impossible with volatile molecules whose masses are typically smaller than 1000 Dalton. For these, the minimal focal diameter after optimization appears to be 5{radical}(m/m{sub p}) times the nozzle diameter d{sub n}. But combinations of focused lasers and aerodynamic focusing appear as promising for direct writing with molecular precursors. Theoretical and numerical schemes capable of predicting the evolution of the focusing beam, including Brownian motion effects, have been …
Date:
January 8, 1990
Creator:
de la Mora, J.F.
Object Type:
Report
System:
The UNT Digital Library
(International Collaboration on Advanced Neutron Sources)
The International Collaboration on Advanced Neutron Sources was started about a decade ago with the purpose of sharing information throughout the global neutron community. The collaboration has been extremely successful in optimizing the use of resources, and the discussions are open and detailed, with reasons for failure shared as well as reasons for success. Although the meetings have become increasingly oriented toward pulsed neutron sources, many of the neutron instrumentation techniques, such as the development of better monochromators, fast response detectors and various data analysis methods, are highly relevant to the Advanced Neutron Source (ANS). I presented one paper on the ANS, and another on the neutron optical polarizer design work which won a 1989 R D-100 Award. I also gained some valuable design ideas, in particular for the ANS hot source, in discussions with individual researchers from Canada, Western Europe, and Japan.
Date:
November 8, 1990
Creator:
Hayter, J. B.
Object Type:
Report
System:
The UNT Digital Library
[Clipping with Photos of Pilots]
Newspaper clipping of the Washington Post with part of an article of Lazarsky's aviation experiences. The article includes a photo on the first page with a caption, "A copy of a military photo shows Lazarsky in the 1940s. She wanted only one thing in those days: 'To fly.'" and a group photo on the second page with the caption, "Members of the Women Air Force Service Pilots gathered last month for trip to Moscow, where they met their Soviet counterparts in World War II."
Date:
June 8, 1990
Creator:
Shaffer, Ron
Object Type:
Clipping
System:
The Portal to Texas History
Considerations for an active and passive scanner to assay nuclear waste drums
Radioactive wastes are generated at many DOE laboratories, military facilities, fuel fabrication and enrichment plants, reactors, hospitals, and university research facilities. At all of these sites, wastes must be separated, packaged, categorized, and packed into some sort of container--usually 208-L (55-gal) drums--for shipment to waste-storage sites. Prior to shipment, the containers must be labeled, assayed, and certified; the assay value determines the ultimate disposition of the waste containers. An accurate nondestructive assay (NDA) method would identify all the radioisotopes present and provide a quantitative measurement of their activity in the drum. In this way, waste containers could be routed in the most cost-effective manner and without having to reopen them. Currently, the most common gamma-ray method used to assay nuclear waste drums is segmented gamma-ray scanning (SGS) spectrometer that crudely measures only the amount of {sup 235}U or {sup 239}Pu present in the drum. This method uses a spatially-averaged, integrated, emitted gamma-ray-intensity value. The emitted intensity value is corrected by an assumed constant-attenuation value determined by a spatially-averaged, transmission (or active) measurement. Unfortunately, this typically results in an inaccurate determination of the radioactive activities within a waste drum because this measurement technique is valid only for homogeneous-attenuation or known drum …
Date:
June 8, 1990
Creator:
Martz, H. E.; Azevedo, S. G.; Roberson, G. P.; Schneberk, D. J.; Koenig, Z. M. & Camp, D.C. (Lawrence Livermore National Lab., CA (USA))
Object Type:
Article
System:
The UNT Digital Library
[Clipping: "Metro 2"]
Copy of the "E" section of the June 1990 edition of The Washington Post. Included are articles about the lack of pedestrian safety in historic Washington, D. C., Barbara Lazarsky's passion for flying, comics, and more.
Date:
June 8, 1990
Creator:
unknown
Object Type:
Clipping
System:
The Portal to Texas History
Report of the CEBAF PAC4 Subcomittee on STAR
This report discusses the following topics: the symmetric toroidal array (STAR) spectrometer facility; investigation of the N {yields} {Delta} transition; Hyperon production in the (e, e{prime}k) reactions; investigation of few-body systems with the (e, e{prime}p) reaction; nuclear structure studies with the (e,e{prime}pp) reaction; Measurement of G{sub Em} in a recoil polarimetry measurement; parity violation measurements; and STAR design and performance.
Date:
August 8, 1990
Creator:
Barnes, P. D.
Object Type:
Report
System:
The UNT Digital Library
A one-wire'' battery monitoring system with applications to on-board charging for electric vehicles
A novel on-board charge system which utilizes a One-Wire'' system for voltage monitoring is discussed and test results obtained using the system are presented. The system consists of a 20 kHz high frequency charger, an algorithm for charging lead-acid batteries with gelled electrolyte, such that gassing is avoided, the control system to implement this charge algorithm and a one-wire battery monitoring system to provide cell/module voltage information to the battery charge controller. Prototype elements of the system have been tested and the system was installed into an EVA Pacer electric vehicle. Charge tests are performed and data taken with the system installed. All elements of the system functioned properly under user conditions. In particular, the charger demonstrated good efficiency, near unity power factor and full programmability. The charge controller functioned reliably and without flaw. The one-wire monitoring system which permits monitoring of cell/module voltages in a battery pack without an extensive conventional wire harness has proven effective and voltage measurements have taken fast enough for control of charging. It was found that for the purpose of voltage monitoring under driving conditions, the system in its present form is too slow.
Date:
October 8, 1990
Creator:
Nowak, D.
Object Type:
Report
System:
The UNT Digital Library
A 3D Particle Simulation Code for Heavy Ion Fusion Accelerator Studies
We describe WARP, a new particle-in-cell code being developed and optimized for ion beam studies in true geometry. We seek to model transport around bends, axial compression with strong focusing, multiple beamlet interaction, and other inherently 3d processes that affect emittance growth. Constraints imposed by memory and running time are severe. Thus, we employ only two 3d field arrays ({rho} and {phi}), and difference {phi} directly on each particle to get E, rather than interpolating E from three meshes; use of a single 3d array is feasible. A new method for PIC simulation of bent beams follows the beam particles in a family of rotated laboratory frames, thus straightening'' the bends. We are also incorporating an envelope calculation, an (r, z) model, and 1d (axial) model within WARP. The BASIS development and run-time system is used, providing a powerful interactive environment in which the user has access to all variables in the code database. 10 refs., 3 figs.
Date:
June 8, 1990
Creator:
Friedman, A.; Bangerter, R. O.; Callahan, D. A.; Grote, D. P.; Langdon, A. B. & Haber, I.
Object Type:
Article
System:
The UNT Digital Library
Report of Foreign Travel of C. E. Klots, September 1990
Accounts are given of the two major international conferences on the physics and chemistry of small particles, commonly referred to as van der Waals particles. Details of special interest to Oak Ridge National Laboratory personnel are cited. Information exchanges at Freiburg and Paris are described.
Date:
October 8, 1990
Creator:
Klots, C. E.
Object Type:
Report
System:
The UNT Digital Library
Development of deep drawn aluminum piston tanks
An aluminum piston tank has been developed for applications requiring lightweight, low cost, low pressure, positive-expulsion liquid storage. The 3 liter (183 in{sup 3}) vessel is made primarily from aluminum sheet, using production forming and joining operations. The development process relied mainly on pressurizing prototype parts and assemblies to failure, as the primary source of decision making information for driving the tank design toward its optimum minimum-mass configuration. Critical issues addressed by development testing included piston operation, strength of thin-walled formed shells, alloy choice, and joining the end cap to the seamless deep drawn can. 9 refs., 8 figs.
Date:
June 8, 1990
Creator:
Whitehead, J. C.; Bronder, R. L.; Kilgard, L. W.; Evans, M. C.; Ormsby, A. E.; Spears, H. R. et al.
Object Type:
Article
System:
The UNT Digital Library
Report of Foreign Travel of Daniel B. Waddle, September 1990
Purpose [of travel]: To present findings of the Costa Rica Power Sector Efficiency Study to the Instituto Costarricense de Electridad, and to the Ministry of Energy, Natural Resources and Mining. To discuss the progress and plans for the Central American Rural Electrification Project with US Agency for International Development (USAID)/Regional Office Central American Program (ROCAP). Abstract: I traveled to San Jose, Costa Rica to present the findings of the Costa Rica Power Sector Efficiency Study to our counterparts in the utility and the Ministry of Energy. Discussions were held with line level managers at Instituto Costarricensede Electricidad (ICE) and Ministry of Energy Mines and Natural Resources (MIRENEM), as well as a plan of action set for the final stage of the project. Discussions were held for a one day period with both the bilateral Agency for International Development (AID) and the regional AID mission regarding the need for a similar study in Guatemala and matters directly pertaining to the Central American Rural Electrification Study (CARES) project.
Date:
October 8, 1990
Creator:
Waddle, Daniel B.
Object Type:
Report
System:
The UNT Digital Library
The records management challenge
None
Date:
August 8, 1990
Creator:
Zeile, H. J.
Object Type:
Article
System:
The UNT Digital Library