Partner
UNT Libraries Government Documents Department
13,996
Oklahoma Historical Society
7,707
UNT Libraries Special Collections
4,288
Texas Historical Commission
561
UNT Libraries
554
Dallas Museum of Art
366
UT San Antonio Libraries Special Collections
333
Sterling Municipal Library
320
UNT Music Library
296
Abilene Christian University Library
218
145 More
Collection
Office of Scientific & Technical Information Technical Reports
13,004
Oklahoma Publishing Company Photography Collection
4,960
Texas Digital Newspaper Program
3,813
KXAS-NBC 5 News Collection
2,539
Oklahoma Digital Newspaper Program
2,082
Tocker Foundation Grant
1,874
LGBT Collections
702
Jim Argo Collection
630
Abilene Library Consortium
546
THC National Register Collection
459
292 More
Serial/Series Title
NBC News Clips
730
The Baytown Sun
313
The Altus Times
312
Sapulpa Daily Herald
310
The Chickasha Daily Express
309
The Perry Daily Journal
309
Dallas/Fort Worth Black Living Legends
271
Dallas/Fort Worth Black Living Legends, 1995
233
The Oklahoma Daily
208
23rd Annual Texas Folklife Festival
192
708 More
Degree Department
Music
85
Department of Psychology
55
College of Music
32
Department of Counseling, Development and Higher Education
31
Chemistry
21
Department of Teacher Education and Administration
19
Department of Biological Sciences
14
Graduate Studies in English
13
Department of Chemistry
11
Department of Physics
10
49 More
Degree Discipline
Degree Level
Country
States
Decade
Year
Month
Results:
1 - 24 of
32,994
next
[News release: Stonewall 25 Telephone Card Makes Calls From Massive Gay, Lesbian March Easy]
A news release from 10 PERCENT magazine about a prepurchase long distance telephone card that will allow participants of Stonewall 25 to call home while in New York for the events.
Date:
February 25, 1994
Creator:
10 PERCENT magazine
Object Type:
Text
System:
The UNT Digital Library
Survey Control for the RHIC Transport Line
None
Date:
November 23, 1994
Creator:
A., Goldman M. & Marks, J.
Object Type:
Report
System:
The UNT Digital Library
AIDS Care is Health Care
Booklet written by the Aids Action Council arguing for better insurance and healthcare benefits for individuals living with HIV/AIDS and outlining current legislation in favor of these changes.
Date:
January 1994
Creator:
AIDS Action Council
Object Type:
Book
System:
The UNT Digital Library
[Media Release: AIDS Action Council HUD Initiative]
A media release from the AIDS Action Council discussing the U.S. Department of Housing and Urban Development's recent announcement that they would launch a new initiative that would provide federally funded housing for peoples with HIV/AIDS.
Date:
August 12, 1994
Creator:
AIDS Action Council
Object Type:
Text
System:
The UNT Digital Library
[Press Release: Housing and Urban Develpment Secretary Promises AIDS Housing Intiative]
A release from AIDS Action Council discussing the recent U.S. Department of Housing and Urban Development's announcing the federal funding of housing for individuals with HIV/AIDS.
Date:
August 12, 1994
Creator:
AIDS Action Council
Object Type:
Text
System:
The UNT Digital Library
[Educational Document: Am I You? I Had Unsafe Sex.]
An educational document sharing the personal experience of an HIV positive individual that advocates for practicing safe sex.
Date:
1994
Creator:
AIDS Resource Center
Object Type:
Text
System:
The UNT Digital Library
[Charts: Listing of EMAs by amount of formula FY 1995 award]
A series of charts and graphs showing the EMAs by change in formula award based of city.
Date:
October 26, 1994
Creator:
AIDS Service Dallas
Object Type:
Text
System:
The UNT Digital Library
[Fax: Clinton administration seeking increase in AIDS funding]
A fax from the AIDS Services of Dallas to the Voice discussing the Clinton administration protecting and seeking to increase healthcare funding for people with HIV/AIDS.
Date:
December 21, 1994
Creator:
AIDS Service Dallas
Object Type:
Text
System:
The UNT Digital Library
[Faxed Scan: Seroprevalence of HIV and Risk Behaviors Among Young Homosexual and Bisexual Men]
A fax receipt and a scanned copy of a published study that indicated that HIV infections were increasing among young homosexual and bisexual men.
Date:
August 23, 1994
Creator:
AIDS Service of Dallas
Object Type:
Text
System:
The UNT Digital Library
[Letter: From Maison to Royal]
A letter from Don Maison, from the AIDS Service of Dallas, to Charlie Royal, from the State Bar of Texas, discussing the attached legal documents.
Date:
July 25, 1994
Creator:
AIDS Service of Dallas
Object Type:
Letter
System:
The UNT Digital Library
[Confidential Letter: Maison to Martin]
A confidential letter from Don Maison, from the AIDS Services of Dallas, to Jack Martin from the Texas Board of Law Examiners.
Date:
July 14, 1994
Creator:
AIDS Services of Dallas
Object Type:
Letter
System:
The UNT Digital Library
[Fax: Memorandum and News Story]
A fax from the AIDS Services of Dallas to Scott Mackey at the Dallas Voice about an increase in funding for programs that assist persons with HIV/AIDS.
Date:
December 21, 1994
Creator:
AIDS Services of Dallas
Object Type:
Text
System:
The UNT Digital Library
[Letter: From Martin to Maison]
A letter from Don Maison, from the AIDS Services of Dallas, to Jack Martin, from the Texas Board of Law Examiners.
Date:
July 26, 1994
Creator:
AIDS Services of Dallas
Object Type:
Letter
System:
The UNT Digital Library
[Letter: Nelson to Maison]
A letter from Don Maison, from the AIDS Service of Dallas, to Mary Klapperich, from the State Bar of Texas.
Date:
July 27, 1994
Creator:
AIDS Services of Dallas
Object Type:
Letter
System:
The UNT Digital Library
[News release with handwritten notes: The President is planning to terminate HOPWA]
A copy of a newspaper clipping and news release concerning President Bill Clinton seeking to terminate housing programs for people with AIDS.
Date:
December 15, 1994
Creator:
AIDS Services of Dallas
Object Type:
Text
System:
The UNT Digital Library
Policy on Arts Education
Policy on Arts Education submitted to the SFA Education Committee by the AOL Arts and Tourism Committee and adopted by the NCSL Executive Committee. The document details that art is essential to the education of school children as art helps the children develop skills they need to succeed in life, problem solving, appreciation of cultures and communities, building self-esteem and self-discipline, informed perceptions and so forth.
Date:
May 1994
Creator:
AOL Arts and Tourism Committee
Object Type:
Text
System:
The UNT Digital Library
[Photograph 2012.201.B0174.0491]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Co for brain painter"
Date:
September 1, 1994
Creator:
AP Leaf
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Sulfur removal in advanced two stage pressurized fluidized bed combustion. Technical report, 1 March--31 May 1994
The objective of this study is to obtain data on the rates of reaction between hydrogen sulfide (H{sub 2}S) and uncalcined calcium-based sorbents under operating conditions relevant to first stage (carbonizer) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure in the first stage generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, removal of sulfur compounds takes place through the reaction between H{sub 2}S and calcium carbonate. To achieve this objective, the rates of reaction between hydrogen sulfide and uncalcined calcium-based sorbents will be determined by conducting tests in pressurized thermogravimetric analyzer (TGA) and high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. During this quarter a series of sulfidation tests were conducted in the high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. During this quarter a series of sulfidation tests were conducted in the high-pressure high-temperature thermogravimetric analyzer (HPTGA unit) using limestone …
Date:
September 1, 1994
Creator:
Abbasian, J.; Chowdiah, P.; Hill, A. H. & Rue, D. M.
Object Type:
Report
System:
The UNT Digital Library
Development of novel copper-based sorbents for hot-gas cleanup. [Quarterly] technical report, September 1--November 30, 1993
The objective of this investigation is to evaluate two novel copper-based sorbents, namely copper-chromium and copper-cerium, for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650{degree} to 850{degree}C. Such high temperatures will be required for the new generation of gas turbines (inlet >750{degree}C) in Integrated Gasification Combined Cycle (IGCC) systems. The effect of pre-reduction on the performance of the sorbents as well as the rate of different reactions occurring in cyclic sulfidation/regeneration, were studied in a thermogravimetric analyzer (TGA). Sulfidation was conducted with and without H{sub 2} and H{sub 2}O, and with and without pre-reduction in H{sub 2} or H{sub 2}/H{sub 2}O. The results of these tests indicate that reduction and regeneration of both sorbents occurs rapidly. Sulfidation of CuCr{sub 2}O{sub 4}, in H{sub 2}O-free and H{sub 2}-/H{sub 2}O-free gas indicates the possible sulfidation of both copper and chromium. Small quantities of SO{sub 2}, were released during sulfidation suggesting the possible oxidation of H{sub 2}S by the sorbent. Regeneration of the CuCr{sub 2}O{sub 4} was complete while regeneration of the CuO-CeO{sub 2} indicated possible limited sulfate formation.
Date:
March 1, 1994
Creator:
Abbasian, J.; Hill, A. H.; Flytzani-Stephanopoulos, M. & Li Li
Object Type:
Report
System:
The UNT Digital Library
Development of novel copper-based sorbents for hot-gas cleanup. Technical report, 1 March--31 May 1994
The objective of this investigation is to evaluate two novel copper-based sorbents, namely copper-chromium and copper-cerium, for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650 to 850 C. Such high temperatures will be required for the new generation of gas turbines (inlet > 750 C) in Integrated Gasification Combined Cycle (IGCC) systems. Results of fixed-bed reactor tests conducted in this quarter, indicate that, at 750 C, pre-reduction with H{sub 2} in the presence of H{sub 2}O does not effect the performance of either sorbent for H{sub 2}S removal. For the pre-reduced CuCr{sub 2}O{sub 4} sorbent, copper utilization before the first H{sub 2}S breakthrough is substantially higher in synthesis feed gas mixture than in feed gas containing 30 Vol% H{sub 2}, and slightly lower than in 10 vol% H{sub 2}. In sulfidation-regeneration testing of copper- and additive-rich sorbents, chromium-rich CuO-3Cr{sub 2}O{sub 4} sorbent demonstrated very high H{sub 2}S removal efficiency and high copper conversion levels (comparable to that of the 1:1 molar composition sorbent). Similar results were obtained with the cerium-rich CuO-3CeO{sub 2} sorbent, but only for the first cycle. The H{sub 2}S removal performance of both copper-rich sorbents was inferior to that of …
Date:
September 1, 1994
Creator:
Abbasian, J.; Hill, A. H.; Flytzani-Stephanopoulos, M. & Li, Z.
Object Type:
Report
System:
The UNT Digital Library
Development of novel copper-based sorbents for hot-gas cleanup. [Quarterly] technical report, December 1, 1993--February 28, 1994
The objective of this investigation is to evaluate two novel copper-based sorbents, namely copper-chromium and copper-cerium, for their effectiveness in removing hydrogen sulfide from fuel gas in the temperature range of 650{degree} to 850{degree}. Such high temperatures will be required for the new generation of gas turbines (inlet >750{degree}C) in Integrated Gasification Combined Cycle (IGCC) systems. The effect of pre-reduction with H{sub 2}, in the presence of H{sub 2}O on the performance of the sorbents in cyclic sulfidation/regeneration, was studied in a thermogravimetric analyzer (TGA) and in a fixed-bed reactor at 750{degree}C. The results of the TGA tests indicate that pre-reduction of the sorbents is very fast in either 10% or 30% H{sub 2}. Without sorbent pre-reduction, sulfidation consists of two-stages, a reduction-dominating and a sulfidation-dominating stage. Sulfidation apparently takes place before reduction is complete. During regeneration some copper/cerium sulfates may have formed and Cu{sub 2}O may have formed in addition to CuO. The fixed-bed reactor tests show that at 750{degree}C: (1) prereducing the CuO-Cr{sub 2}O{sub 3} with H{sub 2} does not effect the reactivity of the sorbent towards H{sub 2}S at either the high or low H{sub 2} feed gas concentrations and (2) when 30% H{sub 2} was used …
Date:
June 1, 1994
Creator:
Abbasian, J.; Hill, A. H.; Flytzani-Stephanopoulos, M. & Li, Zhijiang
Object Type:
Report
System:
The UNT Digital Library
Sulfur removal in advanced two-stage fluidized-bed combustion. [Quarterly] technical report, December 1, 1993--February 28, 1994
The objective of this study is to obtain data on the rates of reaction between, hydrogen sulfide (H{sub 2}S) and uncalcined calcium-based sorbents under operating conditions relevant to first stage (carbonizer) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure in the first stage generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, removal of sulfur compounds takes place through the reaction between H{sub 2}S and calcium carbonate. To achieve this objective the rates of reaction between hydrogen sulfide and uncalcined calcium-based sorbents will be determined by conducting tests in pressurized thermogravimetric analyzer (TGA) and high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. During this quarter, the high-pressure thermogravimetric analyzer (HPTGA) unit was installed and the shakedown process was completed. Several tests were conducted in the HPTGA unit to establish the operating procedure and the repeatability of the experimental results. Sulfidation by conducting the baseline sulfidation tests. The results are currently being analyzed.
Date:
June 1, 1994
Creator:
Abbasian, J.; Hill, A. H.; Wangerow, J. R. & Rue, D. M.
Object Type:
Report
System:
The UNT Digital Library
Sulfur removal in advanced two-staged pressurized fluidized-bed combustion; [Quarterly] report, September 1--November 1993
The objective of this study is to obtain data on the rates of reaction between hydrogen sulfide (H{sub 2}S) and uncalcined calcium-based sorbents under operating conditions relevant to first stage (carbonizer) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure in the first stage generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, removal of sulfur compounds takes place through the reaction between H{sub 2}S and calcium carbonate. To achieve this objective, the rates of reaction between hydrogen sulfide and uncalcined calcium-based sorbents will be determined by conducting tests in pressurized thermogravimetric analyzer (TGA) and high-pressure/high-temperature fluidized-bed reactor (HPTR) units. The effects of sorbent type, sorbent particle size, reactor temperature and pressure, and CO{sub 2} and H{sub 2}S partial pressures on the sulfidation reaction rate will be determined. A pressurized TGA unit has been purchased by IGT for use in this project.
Date:
March 1, 1994
Creator:
Abbasian, Javad; Hill, Andy H.; Wangerow, James R. & Rue, David M.
Object Type:
Report
System:
The UNT Digital Library
Sulfur removal in advanced two stage pressurized fluidized bed combustion. Technical report, September 1--November 30, 1994
The objective of this study is to obtain data on the rates and the extent of sulfation reactions involving partially sulfided calcium-based sorbents, and oxygen as well as sulfur dioxide, at operating conditions closely simulating those prevailing in the second stage (combustor) of Advanced Two-Stage Pressurized Fluidized-Bed Combustors (PFBC). In these systems the CO{sub 2} partial pressure generally exceeds the equilibrium value for calcium carbonate decomposition. Therefore, calcium sulfate is produced through the reactions between SO{sub 2} and calcium carbonate as well as the reaction between calcium sulfide and oxygen. To achieve this objective, the rates of reaction involving SO{sub 2} and oxygen (gaseous reactant); and calcium sulfide and calcium carbonate (solid reactants), will be determined by conducting tests in a pressurized thermogravimetric analyzer (HPTGA) unit. The effects of sorbent type, sorbent particle size, reactor temperature and pressure; and O{sub 2} as well as SO{sub 2} partial pressures on the sulfation reactions rate will be determined. During this quarter, samples of the selected limestone and dolomite were sulfided in the fluidized-bed reactor. These tests were conducted in both calcining and non-calcining operating conditions to produce partially-sulfided sorbents containing calcium oxide and calcium carbonate, respectively. These samples which represent the carbonizer …
Date:
December 31, 1994
Creator:
Abbasian, Javad; Hill, Andy; Wangerow, James R. & Honea, Franklin I.
Object Type:
Report
System:
The UNT Digital Library