Partner
UNT Libraries Government Documents Department
974
Oklahoma Historical Society
691
UNT Libraries Special Collections
408
Texas Historical Commission
62
Sterling Municipal Library
27
UNT Libraries
25
UNT Music Library
24
Carl Albert Congressional Research and Studies Center
18
Rice University Woodson Research Center
15
Alvin Community College
12
82 More
Collection
Office of Scientific & Technical Information Technical Reports
910
Oklahoma Publishing Company Photography Collection
545
Texas Digital Newspaper Program
352
KXAS-NBC 5 News Collection
239
Tocker Foundation Grant
167
Oklahoma Digital Newspaper Program
159
THC National Register Collection
61
LGBT Collections
52
D. Jack Davis Art Education Collection
46
Texas State Publications
31
140 More
Degree Department
Degree Discipline
Degree Level
States
Year
Month
Results:
1 - 24 of
2,570
next
The Advanced Neutron Source Research and Development Plan
The Advanced Neutron Source (ANS) is being designed as a user-oriented neutron research laboratory centered around the most intense continuous beams of thermal and subthermal neutrons in the world. The ANS will be built around a new research reactor of {approximately} 330 MW fission power, producing an unprecedented peak thermal flux of > 7 {times} 10{sup 19} M{sup {minus}2} {center_dot} S{sup {minus}1}. Primarily a research facility, the ANS will accommodate more than 1000 academic, industrial, and government researchers each year. They will conduct basic research in all branches of science-as well as applied research-leading to better understanding of new materials, including high temperature super conductors, plastics, and thin films. Some 48 neutron beam stations will be set up in the ANS beam rooms and the neutron guide hall for neutron scattering and for fundamental and nuclear physics research. There also will be extensive facilities for materials irradiation, isotope production, and analytical chemistry. The R&D program will focus on the four objectives: Address feasibility issues; provide analysis support; evaluate options for improvement in performance beyond minimum requirements; and provide prototype demonstrations for unique facilities. The remainder of this report presents (1) the process by which the R&D activities are controlled and …
Date:
November 30, 1992
Creator:
Selby, D. L.
Object Type:
Report
System:
The UNT Digital Library
The Advanced Neutron Source research and development plan
The Advanced Neutron Source (ANS) is being designed as a user-oriented neutron research laboratory centered around the most intense continuous beams of thermal and subthermal neutrons in the world. The ANS will be built around a new research reactor of [approximately] 330 MW fission power, producing an unprecedented peak thermal flux of > 7 [times] 10[sup 19] M[sup [minus]2] [center dot] S[sup [minus]1]. Primarily a research facility, the ANS will accommodate more than 1000 academic, industrial, and government researchers each year. They will conduct basic research in all branches of science-as well as applied research-leading to better understanding of new materials, including high temperature super conductors, plastics, and thin films. Some 48 neutron beam stations will be set up in the ANS beam rooms and the neutron guide hall for neutron scattering and for fundamental and nuclear physics research. There also will be extensive facilities for materials irradiation, isotope production, and analytical chemistry. The R D program will focus on the four objectives: Address feasibility issues; provide analysis support; evaluate options for improvement in performance beyond minimum requirements; and provide prototype demonstrations for unique facilities. The remainder of this report presents (1) the process by which the R D activities …
Date:
November 30, 1992
Creator:
Selby, D. L.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 92, No. 225, Ed. 1 Monday, November 30, 1992
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 30, 1992
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 71, No. 26, Ed. 1 Monday, November 30, 1992
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
November 30, 1992
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
Burleson Star (Burleson, Tex.), Vol. 28, No. 14, Ed. 1 Monday, November 30, 1992
Semi-weekly newspaper from Burleson, Texas that includes local, state, and national news along with advertising.
Date:
November 30, 1992
Creator:
Ellertson, Sally
Object Type:
Newspaper
System:
The Portal to Texas History
Chaotic dynamics in accelerator physics. [Dept. of Astrophysical, Planetary, and Atmospheric Sciences, Univ. of Colorado, Boulder]
Substantial progress was in several areas of accelerator dynamics. For developing understanding of longitudinal adiabatic dynamics, and for creating efficiency enhancements of recirculating free-electron lasers, was substantially completed. A computer code for analyzing the critical KAM tori that bound the dynamic aperture in circular machines was developed. Studies of modes that arise due to the interaction of coating beams with a narrow-spectrum impedance have begun. During this research educational and research ties with the accelerator community at large have been strengthened.
Date:
November 30, 1992
Creator:
Cary, J.R.
Object Type:
Report
System:
The UNT Digital Library
Chaotic dynamics in accelerator physics. Progress report
Substantial progress was in several areas of accelerator dynamics. For developing understanding of longitudinal adiabatic dynamics, and for creating efficiency enhancements of recirculating free-electron lasers, was substantially completed. A computer code for analyzing the critical KAM tori that bound the dynamic aperture in circular machines was developed. Studies of modes that arise due to the interaction of coating beams with a narrow-spectrum impedance have begun. During this research educational and research ties with the accelerator community at large have been strengthened.
Date:
November 30, 1992
Creator:
Cary, J. R.
Object Type:
Report
System:
The UNT Digital Library
Chickasha Daily Express (Chickasha, Okla.), Vol. 101, No. 223, Ed. 1 Monday, November 30, 1992
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 30, 1992
Creator:
Plummer, George
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Controlled Synthesis of Polyenes by Catalytic Methods. Progress Report for the period December 1, 1989 - November 30, 1992
A more direct approach to polyenes by the direct polymerization of acetylenes has been achieved. We were able to show that polymerization of acetylene itself can be controlled with a well- characterized alkylidene catalyst, but only if a base such as quinuclidine is present in order to slow down the rate of propagation relative to initiation. (Quinuclidine may also stabilize vinylalkylidene intermediates formed in the reaction). Unfortunately, living polyenes'' were no more stable than isolated polyenes, and so this approach had its limitations. Direct polymerization of acetylene by Mo(CH-t-Bu)(NAr)(O-t-Bu){sub 2} was more successful, but inherent polyene instability was still a problem. The most important result of the past grant period is the finding that dipropargyl derivatives (HC=CCH{sub 2}XCH{sub 2}C=CH; X = CH{sub 2}, C(CO{sub 2}R){sub 2}, SiR{sub 2}, etc.), which have been reported to be cyclopolymerized by various classical catalysts by as yet unknown mechanisms, are polymerized by Mo(CH-t-Bu)(NAr)(OCMe(CF{sub 3}){sub 2}){sub 2} in dimethoxyethane. We speculate that intramolecular formation of a five-membered ring in the product of {alpha} addition is fast enough to yield another terminal alkylidene on the time scale of the polymerization reaction, while a six-membered ring is formed in a reaction involving a more reaction terminal alkylidene. …
Date:
November 30, 1992
Creator:
Schrock, R. R.
Object Type:
Report
System:
The UNT Digital Library
Design of a high activity and selectivity alcohol catalyst
Efforts to synthesize bimetallic cluster-derived Rh-Mo catalysts for CO and CO[sub 2] hydrogenation to preferentially produce oxygenates. The rhodium-molybdenum cluster, (PPh[sub 3])[sub 2]RhMO(CO)([mu]-CO)[sub 2]Cp, was employed as a precursor to alumina- and silica-supported catalysts which were in CO hydrogenation. When compared to catalysts made from the distinct organometallic complexes, RhH(CO)(PPh[sub 3])[sub 3] and [MO(CO)[sub 3]Cp][sub 2], the catalysts derived from a binuclear precursor show higher activities for CO hydrogenation and superior selectivities towards oxygenates, namely, methanol, dimethyl ether and ethanol. Their product distributions depend on the support. Fourier transform infrared spectroscopy studies indicate that CO chemisorbs on cluster-derived catalysts as gem-dicarbonyls while it is chemisorbed only in the linear-carbonyl configuration on catalysts made from separate rhodium and molybdenum complexes. The particular oxygenate selectivity of the cluster-derived catalysts may be correlated to the strong electronic interaction between Rh and Mo. Carbon dioxide hydrogenation has also been carried out on the catalysts mentioned above. Again, the cluster-derived catalysts show higher oxygenate selectivities. Finally, the catalysts were studied with regard to both CO and CO[sub 2] hydrogenation kinetics, apparent activation energies inferred.
Date:
November 30, 1992
Creator:
Foley, Henry C. & Mills, G. Alex
Object Type:
Report
System:
The UNT Digital Library
Design of a high activity and selectivity alcohol catalyst. Ninth quarterly report, August 7, 1992--November 7, 1992
Efforts to synthesize bimetallic cluster-derived Rh-Mo catalysts for CO and CO{sub 2} hydrogenation to preferentially produce oxygenates. The rhodium-molybdenum cluster, (PPh{sub 3}){sub 2}RhMO(CO)({mu}-CO){sub 2}Cp, was employed as a precursor to alumina- and silica-supported catalysts which were in CO hydrogenation. When compared to catalysts made from the distinct organometallic complexes, RhH(CO)(PPh{sub 3}){sub 3} and [MO(CO){sub 3}Cp]{sub 2}, the catalysts derived from a binuclear precursor show higher activities for CO hydrogenation and superior selectivities towards oxygenates, namely, methanol, dimethyl ether and ethanol. Their product distributions depend on the support. Fourier transform infrared spectroscopy studies indicate that CO chemisorbs on cluster-derived catalysts as gem-dicarbonyls while it is chemisorbed only in the linear-carbonyl configuration on catalysts made from separate rhodium and molybdenum complexes. The particular oxygenate selectivity of the cluster-derived catalysts may be correlated to the strong electronic interaction between Rh and Mo. Carbon dioxide hydrogenation has also been carried out on the catalysts mentioned above. Again, the cluster-derived catalysts show higher oxygenate selectivities. Finally, the catalysts were studied with regard to both CO and CO{sub 2} hydrogenation kinetics, apparent activation energies inferred.
Date:
November 30, 1992
Creator:
Foley, H. C. & Mills, G. A.
Object Type:
Report
System:
The UNT Digital Library
Doctoral Lecture Recital: 1992-11-30 – Margo Jones, flute
Recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
November 30, 1992
Creator:
Jones, Margo S.
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 1992-11-30 – Michael G. Kingan, percussion
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
November 30, 1992
Creator:
Kingan, Michael
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 1992-11-30 – Yumi Uchikado Patterson, harpsichord
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
November 30, 1992
Creator:
Uchikado Patterson, Yumi
Object Type:
Sound
System:
The UNT Digital Library
[Funeral Program for John Oliver Mosby, Jr., November 30, 1992]
Funeral program for Sir Knight John Oliver Mosby, Jr., born March 6, 1917 and died November 27, 1992. The funeral was held November 30, 1992 at Holy Redeemer Catholic Church, officiated by Rev. Norbert T. Rosso. Funeral arrangements were made through Sutton-Sutton Mortuary Inc. and he was buried in Fort Sam Houston National Cemetery in San Antonio, Texas.
Date:
November 30, 1992
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
GDFW This Week, Volume 6, Number 46, November 30, 1992
Weekly newsletter published for employees of the Fort Worth Division of General Dynamics containing work-related information, updates about employees, and other news.
Date:
November 30, 1992
Creator:
General Dynamics Corporation. Fort Worth Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
McMurry University War Whoop (Abilene, Tex.), Vol. 70, No. 8, Ed. 1, Monday, November 30, 1992
Weekly student newspaper from McMurry University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
November 30, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Mechanism of hydrodenitrogenation
In this project it was proposed that the selectivity of the HDN reaction can be affected by an alteration of the catalyst acidity since it is possible that an acidic Hofmann-like deamination C--N--C bonds. Such a possibility was verified in this work by studying the denitrogenation of piperidine over acidic catalysts, and it was demonstrated that Bronsted acid sites are active for the denitrogenation of N-heterocycles, whereas Lewis sites are not. To better understand the role of acidic sites in the presence of hydrogenation and hydrogenolysis sites, molybdena was supposed on a series of acidic aluminas, and the resulting new acidity and molybdic phases were characterized. The oxidized catalysts supported on silica-aluninas showed increases from 3 to 150% of weak, medium and strong acid sites, which were produced by the molybdena phases. The new acidity was both of Lewis and Bronsted type, the predominance of one over the other depending upon support composition, as well as on loading and state of oxidation of Mo. High-alumina supports and low Mo loading favor dispersed Mo species, in particular bidentate and monodentate di-oxo Mo species. The latter is responsible for the new Bronsted acidity. Coordinative unsaturation of polymolybdates is responsible for the new …
Date:
November 30, 1992
Creator:
Miranda, R.
Object Type:
Report
System:
The UNT Digital Library
Mechanism of hydrodenitrogenation. Final report, September 1, 1989--August 31, 1992
In this project it was proposed that the selectivity of the HDN reaction can be affected by an alteration of the catalyst acidity since it is possible that an acidic Hofmann-like deamination C--N--C bonds. Such a possibility was verified in this work by studying the denitrogenation of piperidine over acidic catalysts, and it was demonstrated that Bronsted acid sites are active for the denitrogenation of N-heterocycles, whereas Lewis sites are not. To better understand the role of acidic sites in the presence of hydrogenation and hydrogenolysis sites, molybdena was supposed on a series of acidic aluminas, and the resulting new acidity and molybdic phases were characterized. The oxidized catalysts supported on silica-aluninas showed increases from 3 to 150% of weak, medium and strong acid sites, which were produced by the molybdena phases. The new acidity was both of Lewis and Bronsted type, the predominance of one over the other depending upon support composition, as well as on loading and state of oxidation of Mo. High-alumina supports and low Mo loading favor dispersed Mo species, in particular bidentate and monodentate di-oxo Mo species. The latter is responsible for the new Bronsted acidity. Coordinative unsaturation of polymolybdates is responsible for the new …
Date:
November 30, 1992
Creator:
Miranda, R.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: AIDS Movie]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
November 30, 1992, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Bank Robbery]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
November 30, 1992, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Coach Gibbons]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10 P.M.
Date:
November 30, 1992
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Coach Gibbons]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
November 30, 1992, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Escapee]
B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
November 30, 1992, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library