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NQR-NMR studies of higher alcohol synthesis Cu-Co catalysts
Copper and cobalt are the key elements in syngas conversion catalyst systems used for higher alcohol synthesis. Their proximity and synergy sensitively control the selectivity and efficiency of the process. It is believed that their outer electronic charge distribution which is responsible for their electrical and magnetic properties might be governing their catalytic properties also. To examine the correlation between catalytic and magnetic properties, a series of copper cobalt catalysts (Co/Cu ratio 5:1 to 5:5) with and without a support were prepared. The nuclear quadrupole resonance spectrum of copper and (zero-field) nuclear magnetic resonance spectrum of cobalt and magnetization and hysteresis character of the catalyst were analyzed. Similar to the catalytic results, the magnetic results also were found to be very sensitive to the preparation technique. The results indicate possible electron exchange between copper and cobalt, and cobalt and the support Titania.
Date:
January 14, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Letter from Nancy Reynolds to Pat Smith Hopper, July 14, 1994]
Photocopy of a letter from Nancy Reynolds, Project Coordinator of North Texas Institute for Educators on the Visual Arts, to Pat Smith Hopper. Discussing Hopper's efforts in discipline-based art education and cultural diversity having gone over Hopper's thematic unit on "Art and Literature on Native American Sioux Culture." Reynolds invites Hopper to attend a NTIEVA seminar being held in Houston believing Hopper will find the information interesting and will consider joining their program.
Date:
July 14, 1994
Creator:
Reynolds, Nancy
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Bill McCarter to Thomas A. Hatfield, July 11, 1994]
Photocopy of a letter from Bill McCarter, co-director of North Texas Institute for Educators on the Visual Arts, to Thomas A. Hatfield, Executive Director for The National Art Education Association. In regards to an observation letter Hatfield has sent North Texas Institute for Educators on the Visual Arts. Hatfield has commented on the lesson summary on the newsletter that he found helpful and McCarter writes that it was their coordinator and editor Nancy Reynolds and she'll be pleased with his insights in response.
Date:
July 14, 1994
Creator:
McCarter, William
Object Type:
Letter
System:
The UNT Digital Library
[RE: National Gallery of Art Film Library Extension Program, August 14, 1992]
Photocopy of a letter from Nancy Reynolds, Project Coordinator of North Texas Institute for Educators on the Visual Arts, to the UNT Slide Library. Regarding that North Texas Institute for Educators on the Visual Arts has recently become an affiliate distributor of the National Gallery of Art, receiving a selection of resources from the National Gallery in Washington, D.C., including slide programs and videocassettes. The resources are located in NTIEVA's office for free loan to consortium members and the art faculty of UNT. Programs on the slides cover, artists, museums, architecture, painting and other extensive materials.
Date:
August 14, 1992
Creator:
Reynolds, Nancy
Object Type:
Letter
System:
The UNT Digital Library
[RE: Arts Education Assessment Consortium, September 14, 1994]
Photocopy of a letter from Julie Abel, the Getty Center, to the Regional Institute Directors, in regards to the upcoming arts assessment. The Arts Education Assessment Consortium, AEAC, is administered by the Council of Chief State School Officers to all the RIG states. The Center is providing support to the AEAC to develop assessment prototypes in the visual and performing arts and believes that if the DBAE, discipline-based art education, is embedded in the assessment prototypes it will strengthen the impact within the state and nationally. A list of state contacts is attached to the letter.
Date:
September 14, 1994
Creator:
Abel, Julie
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Jack Davis, Bill McCarter and Nancy Reynolds to Rosaena Garza, January 14, 1994]
Photocopy of a letter from Jack Davis, Bill McCarter and Nancy Reynolds, North Texas Institute for Educators on the Visual Arts, to Rosaena Garza, Director of Academic Programs, Corpus Christi ISD. In regards to Wynn Seale Fine Arts Magnet School applying for an innovative education grant from the Texas Education Agency and that North Texas Institute for Educators on the Visual Arts endorses the proposal. They write that NTIEVA has had a collaborative relationship with Corpus Christi ISD since the summer of 1993 and that they will work with CCISD to provide staff development workshops, on-going training for CCISD personnel and serve as network with other art educators across the state. At the request of their major funders, NTIEVA are expanding to include districts outside of the DFW / North Texas locations and are going to consult with CCISD for collaborative opportunities.
Date:
January 14, 1994
Creator:
Davis, Donald Jack; McCarter, William & Reynolds, Nancy
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Jan Schronk to Bill McCarter and Jack Davis, October 14, 1991]
Photocopy of a letter from Jan Schronk, Director of Fine Arts for Hurst-Euless-Bedford ISD, to Bill McCarter and Jack Davis, co-directors of North Texas Institute for Educators on the Visual Arts. In regards to HEB's commitments to North Texas Institute for Educators on the Visual Arts and that Schronk will contribute 15% of her time during the 1992 calendar to activities related to staff development and implementation efforts of discipline-based art education. In addition, five art specialists will devote a substantial amount of time toward the DBAE program. Enclosed with the letter are stipend worksheets for the faculty's current income. Worksheet not present with letter.
Date:
October 14, 1991
Creator:
Schronk, Jan
Object Type:
Letter
System:
The UNT Digital Library
[National Endowment for the Arts Visual Arts Special Projects, February 14, 1995]
Photocopy of a letter from Leilani Lattin Duke, Director of the Getty Center, to the RIG Directors. In regards to the National Endowment for the Arts, NEA, Visual Arts Special Projects. Duke has enclosed the results of the eight arts education program funded by NEA to the directors believing the information is useful for them. Enclosed with the letter is the Arts in Education Special Projects Handbook.
Date:
February 14, 1995
Creator:
Duke, Leilani Lattin
Object Type:
Letter
System:
The UNT Digital Library
[Newsletter from Keith L. Arney, September 14, 1996]
Photocopy of a newsletter from Keith L. Arney, President of the Texas Art Education Association, to the newsletter recipients. Announcing that on behalf of the TAEA, they've nominated Suzi Alost-Reid for Western Region Elementary Division Art Educator of the year, and through the nomination TAEA wishes to express their appreciation for Reid and her achievements and contributions to art education through Texas.
Date:
September 14, 1996
Creator:
Arney, Keith L.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Tim Sonnenberg to Bill McCarter and Jack Davis, October 14, 1991]
Photocopy of a letter from Tim Sonnenberg, Superintendent of Denton ISD, to Bill McCarter and Jack Davis, co-directors of North Texas Institute for Educators on the Visual Arts. Informing McCarter and Davis the commitments that Denton ISD has made to NTIEVA. As such Sandra Parker will contribute 5% of her time during the 1992 school calendar to activities related to the staff development and implementation efforts of discipline-based art (DBAE). In addition, three art teachers will devote substation amount of time as well to NTIEVA. Enclosed in the letter is a stipend worksheet of the faculty salaries. Stipend worksheet not present with letter.
Date:
October 14, 1991
Creator:
Sonnenberg, Tim
Object Type:
Letter
System:
The UNT Digital Library
[RE: National Gallery of Art Film Library Extension Program, August 14, 1992]
Photocopy of a letter from Nancy Reynolds, Project Coordinator of North Texas Institute for Educators on the Visual Arts, to the NTIEVA Art Specialists. In regards to the National Gallery of Art Film Library Extension Program, and that North Texas Institute for Educators on the Visual Arts has become an affiliate distributor with the Nation Gallery. NTIEVA is excited about the selection of resource for use by the art specialists and the classroom teachers and the materials, slide programs and videocassettes are available in NTIEVA office for loan to consortium members. Incorporated into the letter are details about loan requests.
Date:
August 14, 1992
Creator:
Reynolds, Nancy
Object Type:
Letter
System:
The UNT Digital Library
A sendmail. cf scheme for a large network
Like most large networked sites our users depend heavily on the electronic mail system for both internal and off-site communications. Unfortunately the sendmail.cf file, which is used to control the behavior of the sendmail program, is somewhat cryptic and difficult to decipher for the neophyte. So, on one hand you have a highly visible, frequently used utility, and on the other hand a not-so-easily acquired system administration forte. Here is the sendmail topology of our site, what premises we based it on, and the parts of the sendmail.cf files which support the topology.
Date:
August 14, 1991
Creator:
Darmohray, T.M.
Object Type:
Article
System:
The UNT Digital Library
NQR-NMR studies of higher alcohol synthesis Cu-Co catalysts
The primary objective of the project is to examine the relations between the catalytic and magnetic properties of the copper-cobalt higher alcohol synthesis catalysts. We have undertaken to investigate the magnetic character by studying the Nuclear Quadrupole resonance of copper and (Zerofield) Nuclear Magnetic Resonance of cobalt in copper cobalt catalysts.
Date:
January 14, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Molecular biological enhancement of coal biodesulfurization. [Rhodococcus, thiobacillus]
The objective of this project is to produce one or more microorganisms capable of removing the organic and inorganic sulfur in coal. The original specific technical objectives of the project were to: clone and characterize the genes encoding the enzymes of the 4S'' pathway (sulfoxide/sulfone/sulfonate/sulfate) for release of organic sulfur from coal; return multiple copies of genes to the original host to enhance the biodesulfurization activity of that organism; transfer this pathway into a fast-growing chemolithotropic bacterium; conduct a batch-mode optimization/analysis of scale-up variables.
Date:
June 14, 1990
Creator:
Litchfield, J. H.; Fry, I.; Wyza, R. E.; Palmer, D. T.; Zupancic, T. J. & Conkle, H. N.
Object Type:
Report
System:
The UNT Digital Library
Additional information for impact response of the restart safety rods
WSRC-RP-91-677 studied the structural response of the safety rods under the conditions of brake failure and accidental release. It was concluded that the maximum impact loading to the safety rod is 6020 pounds based on conservative considerations that energy dissipation attributable to fluid resistance and reactor superstructure flexibility. The staffers of the Defense Nuclear Facility Safety Board reviewed the results and inquired about the extent of conservatism. By request of the RESTART team, I reassessed the impact force due to these conservative assumptions. This memorandum reports these assessments.
Date:
October 14, 1991
Creator:
Yau, W. W. F.
Object Type:
Report
System:
The UNT Digital Library
Monolithic solid oxide fuel cell technology advancement for coal-based power generation
The program is conducted by a team consisting of AiResearch Los Angeles Division of Allied-Signal Aerospace Company and Argonne National Laboratory (ANL). The objective of the program is to advance materials and fabrication methodologies to develop a monolithic solid oxide fuel cell (MSOFC) system capable of meeting performance, life, and cost goals for coal-based power generation. The program focuses on materials research and development, fabrication process development, cell/stack performance testing and characterization, cost and system analysis, and quality development.
Date:
April 14, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Inherently safe nuclear-driven internal combustion engines
A family of nuclear driven engines is described in which nuclear energy released by fissioning of uranium or plutonium in a prompt critical assembly is used to heat a working gas. Engine performance is modeled using a code that calculates hydrodynamics, fission energy production, and neutron transport self-consistently. Results are given demonstrating a large negative temperature coefficient that produces self-shutoff of energy production. Reduced fission product inventory and the self-shutoff provide inherent nuclear safety. It is expected that nuclear engine reactor units could be scaled from 100 MW on up. 7 refs., 3 figs.
Date:
June 14, 1991
Creator:
Alesso, P.; Chow, Tze-Show; Condit, R.; Heidrich, J.; Pettibone, J. & Streit, R.
Object Type:
Article
System:
The UNT Digital Library
[News Clip: Ballpark]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 14, 1994, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Republican]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at
Date:
November 14, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Dallas jams]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
March 14, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Body found]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
October 14, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Combustion of dense streams of coal particles
Research on coal combustion continued. Activities during November 29, 1991 to February 28, 1992 includes: Further analytical results on char array combustion and internal ignition of porous char; preliminary runs using a flat flame burner have been made and a blue flat flame has been obtained; a CID camera, EPIX frame grabber and software, Sony monitor and a 486 Computer to handle image processing frame by frame have been acquired; a new coal feeder has been constructed for feeding through the flat flame burner. Coal experiments have not yet been conducted. Coal samples from Penn State Coal Bank were also acquired for use in the experiments. They include bituminous and subbituminous coals of differing VM.
Date:
April 14, 1992
Creator:
Annamalai, K.
Object Type:
Report
System:
The UNT Digital Library
Nuclear thermal rocket clustering: 1, A summary of previous work and relevant issues
A general review of the technical merits of nuclear thermal rocket clustering is presented. A summary of previous analyses performed during the Rover program is presented and used to assess clustering in the context of projected Space Exploration Initiative missions. A number of technical issues are discussed including cluster reliability, engine-out operation, neutronic coupling, shutdown core power generation, shutdown reactivity requirements, reactor kinetics, and radiation shielding. 7 refs., 3 figs., 2 tabs.
Date:
July 14, 1991
Creator:
Buksa, J.J. & Houts, M.G.
Object Type:
Article
System:
The UNT Digital Library
Instrumentation of dynamic gas pulse loading system
The overall goal of this work is to further develop and field test a system of stimulating oil and gas wells, which increases the effective radius of the well bore so that more oil can flow into it, by recording pressure during the gas generation phase in real time so that fractures can be induced more predictably in the producing formation. Task 1: Complete the laboratory studies currently underway with the prototype model of the instrumentation currently being studied. Task 2: Perform field tests of the model in the Taft/Bakersfield area, utilizing operations closest to the engineers working on the project, and optimize the unit for various conditions encountered there. Task 3: Perform field test of the model in DGPL jobs which are scheduled in the mid-continent area, and optimize the unit for downhole conditions encountered there. Task 4: Analyze and summarize the results achieved during the complete test series, documenting the steps for usage of downhole instrumentation in the field, and compile data specifying use of the technology by others. Task 5: Prepare final report for DOE, and include also a report on the field tests completed. Describe and estimate the probability of the technology being commercialized and in …
Date:
April 14, 1992
Creator:
Mohaupt, H.
Object Type:
Report
System:
The UNT Digital Library