Partner
UNT Libraries Government Documents Department
8,914
Oklahoma Historical Society
3,584
UNT Libraries Special Collections
2,357
UNT Libraries
667
UNT Music Library
546
National Museum of the Pacific War/Admiral Nimitz Foundation
310
Sterling Municipal Library
294
Carl Albert Congressional Research and Studies Center
212
UNT Honors College
116
San Antonio Public Library
102
122 More
Collection
Office of Scientific & Technical Information Technical Reports
5,288
Texas Digital Newspaper Program
3,260
Jim Argo Collection
2,404
Congressional Research Service Reports
1,828
Oklahoma Digital Newspaper Program
1,444
Tocker Foundation Grant
1,323
Government Accountability Office Reports
904
José L. Castillo Photograph Collection
566
College of Music Recordings
536
The Black Academy of Arts and Letters Records
529
214 More
Degree Department
Degree Discipline
Degree Level
Country
States
Decade
Year
Month
Smart Energy Management of Multiple Full Cell Powered Applications
In this research project the University of South Alabama research team has been investigating smart energy management and control of multiple fuel cell power sources when subjected to varying demands of electrical and thermal loads together with demands of hydrogen production. This research has focused on finding the optimal schedule of the multiple fuel cell power plants in terms of electric, thermal and hydrogen energy. The optimal schedule is expected to yield the lowest operating cost. Our team is also investigating the possibility of generating hydrogen using photoelectrochemical (PEC) solar cells through finding materials for efficient light harvesting photoanodes. The goal is to develop an efficient and cost effective PEC solar cell system for direct electrolysis of water. In addition, models for hydrogen production, purification, and storage will be developed. The results obtained and the data collected will be then used to develop a smart energy management algorithm whose function is to maximize energy conservation within a managed set of appliances, thereby lowering O/M costs of the Fuel Cell power plant (FCPP), and allowing more hydrogen generation opportunities. The Smart Energy Management and Control (SEMaC) software, developed earlier, controls electrical loads in an individual home to achieve load management objectives …
Date:
April 23, 2007
Creator:
Alam, Mohammad S.
Object Type:
Report
System:
The UNT Digital Library
Smart Fuel Cell Operated Residential Micro-Grid Community
To build on the work of year one by expanding the smart control algorithm developed to a micro-grid of ten houses; to perform a cost analysis; to evaluate alternate energy sources; to study system reliability; to develop the energy management algorithm, and to perform micro-grid software and hardware simulations.
Date:
April 13, 2005
Creator:
Alam, Mohammad S.
Object Type:
Report
System:
The UNT Digital Library
Modeling the Transport and Chemical Evolution of Onshore and Offshore Emissions and their Impact on Local and Regional Air Quality Using a Variable-Grid-Resolution Air Quality Model
This Annual report summarizes the research performed from 17 April 2005 through 16 April 2006. Major portions of the research in several of the project's current eight tasks have been completed. We have successfully developed the meteorological inputs using the best possible modeling configurations, resulting in improved representation of atmospheric processes. The development of the variable-grid-resolution emissions model, SMOKE-VGR, is also completed. The development of the MAQSIP-VGR has been completed and a test run was performed to ensure the functionality of this air quality model. We have incorporated new emission data base to update the offshore emissions. However, we have faced some bottleneck problems in the testing the integrity of the new database. For this reason, we have asked for a no cost extension of this project to tackle these scientific problems. Thus, the project is on a one-year delay schedule. During the reporting period, we solved all problems related to the new emission database. We are ready to move to developing the final product, implementation and testing of the variable grid technology into the Community Multiscale Air Quality Model (CMAQ) to develop the CMAQ-VGR. During the upcoming months we will perform the first CMAQ-VGR simulations over the Houston-Galveston region …
Date:
April 16, 2006
Creator:
Alapaty, Kiran
Object Type:
Report
System:
The UNT Digital Library
Observation of the decay Xi0 ---> Sigma+ mu- anti-nu(mu)
The {Xi}{sup 0} muon semi-leptonic decay has been observed for the first time with nine identified events using the KTeV beam line and detector at Fermilab. The decay is normalized to the {Xi}{sup 0} beta decay mode and yields a value for the ratio of decay rates {Lambda}({Xi}{sup 0} {yields} {Sigma}{sup +}{mu}{sup -}{bar {nu}}{sub {mu}})/{Lambda}({Xi}{sup 0} {yields} {Sigma}{sup +}e{sup -} {bar {nu}}{sub e}) of (1.8{sub -0.5}{sup +0.7}(stat.) {+-} 0.2(syst.)) x 10{sup -2} at the 68% confidence level. This is in agreement with the SU(3) flavor symmetric quark model.
Date:
April 1, 2005
Creator:
Alavi-Harati, A.; Alexopoulos, T.; Arenton, M.; Barbosa, R. F.; Barker, A. R.; Barrio, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Senior Recital: 2007-04-24 - Lucas Frank Albano
Access:
Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Bachelor of Music (BM) degree.
Date:
April 24, 2007
Creator:
Albano, Lucas Frank
Object Type:
Sound
System:
The UNT Digital Library
Senior Recital: 2007-04-24 - Lucas Frank Albano, percussion
Access:
Use of this item is restricted to the UNT Community
A senior recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Bachelor of Music (BM) degree.
Date:
April 24, 2007
Creator:
Albano, Lucas Frank
Object Type:
Sound
System:
The UNT Digital Library
Ultrabright Laser-based MeV-class Light Source
We report first light from a novel, new source of 10-ps 0.776-MeV gamma-ray pulses known as T-REX (Thomson-Radiated Extreme X-rays). The MeV-class radiation produced by TREX is unique in the world with respect to its brightness, spectral purity, tunability, pulse duration and laser-like beam character. With T-REX, one can use photons to efficiently probe and excite the isotope-dependent resonant structure of atomic nucleus. This ability will be enabling to an entirely new class of isotope-specific, high resolution imaging and detection capabilities.
Date:
April 2, 2008
Creator:
Albert, F.; Anderson, G.; Anderson, S.; Bayramian, A.; Berry, B.; Betts, S. et al.
Object Type:
Article
System:
The UNT Digital Library
A Novel Biomarker for Beryllium Sensitization in Humans - Final Report
This research project will determine the T-cell receptor (TCR) gene usages of beryllium reactive T-lymphocytes isolated directly from the peripheral blood of individuals exposed at a U.S. Department of Energy site. The objective is to develop a sensitive and novel biomarker for identifying early human sensitization to environmental beryllium. This is a collaborative project involving the Genetics Laboratory of the University of Vermont and both the Center for Epidemiological Research and the scientific staff of the Cytogenetics Program at the Oak Ridge Institute for Science and Education (ORISE). The > 2000 beryllium exposed workers who have been contacted for participation in the ORISE study ''Follow-up of Beryllium Workers at the Y-12 Plant/Efficacy of the Peripheral Blood Lymphocyte Proliferation (LPT) and other Non-Invasive Procedures for Diagnosis of Chronic Beryllium Disease'' will provide the pool of potential participants for the proposed study. Beryllium reactive T-lymphocytes will be directly isolated from peripheral blood using a novel antigen-independent method of surrogate selection for in vivo arising hprt mutants as representatives of clones that are undergoing chronic proliferation. The T-cells undergoing chronic proliferation in beryllium sensitized individuals will be enriched for beryllium reactive cells. The TCR gene usage of these T-cell isolates will be determined …
Date:
April 16, 2001
Creator:
Albertini, R. J.
Object Type:
Report
System:
The UNT Digital Library
Portable and Transparent Message Compression in MPI Libraries to Improve the Performance and Scalability of Parallel Applications
The goal of this project has been to develop a lossless compression algorithm for message-passing libraries that can accelerate HPC systems by reducing the communication time. Because both compression and decompression have to be performed in software in real time, the algorithm has to be extremely fast while still delivering a good compression ratio. During the first half of this project, they designed a new compression algorithm called FPC for scientific double-precision data, made the source code available on the web, and published two papers describing its operation, the first in the proceedings of the Data Compression Conference and the second in the IEEE Transactions on Computers. At comparable average compression ratios, this algorithm compresses and decompresses 10 to 100 times faster than BZIP2, DFCM, FSD, GZIP, and PLMI on the three architectures tested. With prediction tables that fit into the CPU's L1 data acache, FPC delivers a guaranteed throughput of six gigabits per second on a 1.6 GHz Itanium 2 system. The C source code and documentation of FPC are posted on-line and have already been downloaded hundreds of times. To evaluate FPC, they gathered 13 real-world scientific datasets from around the globe, including satellite data, crash-simulation data, and …
Date:
April 17, 2009
Creator:
Albonesi, David & Burtscher, Martin
Object Type:
Text
System:
The UNT Digital Library
Model-Independent Analysis of Tri-bimaximal Mixing: A Softly-Broken Hidden or an Accidental Symmetry?
To address the issue of whether tri-bimaximal mixing (TBM) is a softly-broken hidden or an accidental symmetry, we adopt a model-independent analysis in which we perturb a neutrino mass matrix leading to TBM in the most general way but leave the three texture zeros of the diagonal charged lepton mass matrix unperturbed. We compare predictions for the perturbed neutrino TBM parameters with those obtained from typical SO(10) grand unified theories with a variety of flavor symmetries. Whereas SO(10) GUTs almost always predict a normal mass hierarchy for the light neutrinos, TBM has a priori no preference for neutrino masses. We find, in particular for the latter, that the value of |U{sub e3}| is very sensitive to the neutrino mass scale and ordering. Observation of |U{sub e3}|{sup 2} > 0.001 to 0.01 within the next few years would be incompatible with softly-broken TBM and a normal mass hierarchy and would suggest that the apparent TBM symmetry is an accidental symmetry instead. No such conclusions can be drawn for the inverted and quasi-degenerate hierarchy spectra.
Date:
April 1, 2008
Creator:
Albright, Carl H. & Rodejohann, Werner
Object Type:
Article
System:
The UNT Digital Library
Computation Directorate and Science& Technology Review Computational Science and Research Featured in 2002
Thank you for your interest in the activities of the Lawrence Livermore National Laboratory Computation Directorate. This collection of articles from the Laboratory's Science & Technology Review highlights the most significant computational projects, achievements, and contributions during 2002. In 2002, LLNL marked the 50th anniversary of its founding. Scientific advancement in support of our national security mission has always been the core of the Laboratory. So that researchers could better under and predict complex physical phenomena, the Laboratory has pushed the limits of the largest, fastest, most powerful computers in the world. In the late 1950's, Edward Teller--one of the LLNL founders--proposed that the Laboratory commission a Livermore Advanced Research Computer (LARC) built to Livermore's specifications. He tells the story of being in Washington, DC, when John Von Neumann asked to talk about the LARC. He thought Teller wanted too much memory in the machine. (The specifications called for 20-30,000 words.) Teller was too smart to argue with him. Later Teller invited Von Neumann to the Laboratory and showed him one of the design codes being prepared for the LARC. He asked Von Neumann for suggestions on fitting the code into 10,000 words of memory, and flattered him about ''Labbies'' …
Date:
April 4, 2003
Creator:
Alchorn, A L
Object Type:
Report
System:
The UNT Digital Library
Development of a Probabilistic Technique for On-line Parameter and State Estimation in Non-linear Dynamic Systems
The DSD (Dynamic System Doctor) is a system-independent, interactive software under development for on-line state/parameter estimation in dynamic systems (1), partially supported through a Nuclear Engineering Education (NEER) grant during 1998-2001. This paper summarizes the recent accomplishments in improving the user-friendliness and computational capability of DSD
Date:
April 1, 2002
Creator:
Aldemir, T.; Miller, D.W.; Hajek, B. k. & Wang, P.
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Joel D. Alderson, April 10, 2007
Transcript of an oral interview with Joel Alderson and his wife Nila. He discusses going to boot camp in Texas, shipping off to France in early 1945 and working as an engineer, constructing bridges and demolishing German fortifications for the Army as it made it's way through Germany, blowing up Hilter's bunker in Salzburg, Austria and using bulldozers to cover piles of dead Jews the Germans left in the open (likely at Dachau). He ancedotes about meeting Eisenhower, carrying fuel up to Patton's limo when it ran out of gas, seeing Bob Hope, soldiers getting poisoned from confiscated alcohol, and getting met by his family and the town sheriff when he came home after the war.
Date:
April 10, 2007
Creator:
Alderson, Joel D.
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Joel D. Alderson, April 10, 2007
Transcript of an oral interview with Joel Alderson and his wife Nila. He discusses going to boot camp in Texas, shipping off to France in early 1945 and working as an engineer, constructing bridges and demolishing German fortifications for the Army as it made it's way through Germany, blowing up Hilter's bunker in Salzburg, Austria and using bulldozers to cover piles of dead Jews the Germans left in the open (likely at Dachau). He ancedotes about meeting Eisenhower, carrying fuel up to Patton's limo when it ran out of gas, seeing Bob Hope, soldiers getting poisoned from confiscated alcohol, and getting met by his family and the town sheriff when he came home after the war.
Date:
April 10, 2007
Creator:
Alderson, Joel D.
Object Type:
Text
System:
The Portal to Texas History
Oral History Interview with Nila Jackson Alderson, April 23, 2007
Transcript of an oral interview with Nila Jackson Alderson. Born in 1925, Alderson describes life before and during the war in rural Texas as well as in the town of Burnet, Texas . Her husband, Joe Alderson, served in the military in Europe. They both discuss the mail service during the war. The interview includes information about her parents and siblings.
Date:
April 23, 2007
Creator:
Alderson, Nila Jackson
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Nila Jackson Alderson, April 23, 2007
Transcript of an oral interview with Nila Jackson Alderson. Born in 1925, Alderson describes life before and during the war in rural Texas as well as in the town of Burnet, Texas . Her husband, Joe Alderson, served in the military in Europe. They both discuss the mail service during the war. The interview includes information about her parents and siblings.
Date:
April 23, 2007
Creator:
Alderson, Nila Jackson
Object Type:
Text
System:
The Portal to Texas History
PROOF OF PRINCIPAL TEST TO FEED AND METER GRANULAR COAL INTO 450 psig GAS PRESSURE
The objective of this project is to demonstrate proof of principal to feed and meter granular coal into 450 psig gas pressure for use with pressurized fluidized bed combustors. This report summarizes work undertaken in the first quarter of 2000 in support of that objective. At the end of the last quarter the pump had been re-designed to incorporate a larger torque hub and provide a substantial increase in drive train strength to prevent recurrence of failures experienced during earlier testing. Additional modifications were incorporated to improve the performance of the disk seals by improved location and adjustability, and the outlet was modified to incorporate a method to allow rapid adjustment of the outlet sealing column length without pump disassembly and rework being required. This quarter has been largely spent in manufacture of the new parts required, and in initial assembly, alignment and pinning of the revised configuration. The assembly is now complete and the pump is ready for installation into the test rig for the final series of tests.
Date:
April 1, 2000
Creator:
Aldred, Derek L.
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with John Alebis, April 20, 2002
The National Museum of the Pacific War presents an oral interview with John Alebis. Alebis was born in Detroit, Michigan on 7 February 1926 to immigrant Lithuanian parents. Upon entering the Army Air Forces in May 1944, he was sent to Shepherd Field, Texas for basic training. After three weeks of training he was sent to gunnery school at Las Vegas, Nevada. He describes the training he received as a gunner. Upon completion of gunnery training he was sent to Ellsworth Field, North Dakota where he was assigned to a B-17 bomber crew as right waist gunner. The crew flew a B-17 to Capital Stone, England, arriving on 5 April 1945. Upon arrival Alebis was assigned to the 398th Bomb Group, 605th Bomb Squadron. He flew three bombing missions and describes them from the beginning of the day to the return to base. Following the surrender of Germany the unit began flying survey mission over Europe and he describes the devastation he saw. On 1 June 1945 he returned to the United States and was sent to McDill Field, Florida to begin training as a gunner on a B-29. With the surrender of Japan, his training was curtailed and he …
Date:
April 20, 2002
Creator:
Alebis, John
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with John Alebis, April 20, 2002
The National Museum of the Pacific War presents an oral interview with John Alebis. Alebis was born in Detroit, Michigan on 7 February 1926 to immigrant Lithuanian parents. Upon entering the Army Air Forces in May 1944, he was sent to Shepherd Field, Texas for basic training. After three weeks of training he was sent to gunnery school at Las Vegas, Nevada. He describes the training he received as a gunner. Upon completion of gunnery training he was sent to Ellsworth Field, North Dakota where he was assigned to a B-17 bomber crew as right waist gunner. The crew flew a B-17 to Capital Stone, England, arriving on 5 April 1945. Upon arrival Alebis was assigned to the 398th Bomb Group, 605th Bomb Squadron. He flew three bombing missions and describes them from the beginning of the day to the return to base. Following the surrender of Germany the unit began flying survey mission over Europe and he describes the devastation he saw. On 1 June 1945 he returned to the United States and was sent to McDill Field, Florida to begin training as a gunner on a B-29. With the surrender of Japan, his training was curtailed and he …
Date:
April 20, 2002
Creator:
Alebis, John
Object Type:
Text
System:
The Portal to Texas History
Small Column Ion Exchange Analysis for Removal of Cesium from SRS Low Curie Salt Solutions Using Crystalline Silicotitanate (CST) Resin
Savannah River Technology Center (SRTC) researchers modeled ion exchange removal of cesium from dissolved salt waste solutions. The results assist in evaluating proposed configurations for an ion exchange process to remove residual cesium from low curie waste streams. A process for polishing (i.e., removing small amounts) of cesium may prove useful should supernate draining fail to meet the Low Curie Salt (LCS) target limit of 0.1 Ci of Cs-137 per gallon of salt solution. Cesium loading isotherms and column breakthrough curves for Low Curie dissolved salt solutions were computed to provide performance predictions for various column designs.
Date:
April 20, 2004
Creator:
Aleman, Sebastian E. & Hamm, L. L.
Object Type:
Report
System:
The UNT Digital Library
The Issues of Compliance and Interoperability in Integrating Heterogeneous Digital Resources: Lessons from the Texas History Portal
Paper for the 2005 IS&T Archiving Conference. This article discusses the issues of compliance and interoperability in integrating heterogeneous digital resources and lessons from the Texas History Portal.
Date:
April 2005
Creator:
Alemneh, Daniel Gelaw; Hartman, Cathy Nelson & Phillips, Mark Edward
Object Type:
Paper
System:
The UNT Digital Library
Excitation of the synchro-betatron resonances by the beam-beam interaction in the Tevatron Run II lattice
Effect of different mechanisms of the synchro-betatron coupling (dispersion function at the interaction points, chromatic tune modulation, finite bunch length) on the p-bar stability in the Tevatron Run II configuration is considered. It is found that the long-range interactions in the presence of large dispersion produce large contribution ({approximately}10) to the chromaticity of the betatron tunes. This chromaticity, in its turn, can give rise to multiple synchrotron satellites of the betatron resonances increasing their effective width. Novel formulae are presented which permit to significantly speed up analytical calculations of the beam-beam tuneshifts and resonance strength.
Date:
April 30, 2001
Creator:
Alexahin, Yuri I.
Object Type:
Report
System:
The UNT Digital Library
Environmental Exemptions for the Navy's Mid-Frequency Active Sonar Training Program
This report discusses laws related to the protection of marine mammals when using mid-frequency active sonar including the Marine Mammal Protection Act (MMPA), the Endangered Species Act (ESA), the National Environmental Policy Act (NEPA), and the Coastal Zone Management Act (CZMA). The report discusses each of the laws generally, and then reviews the litigation surrounding the Navy's compliance with these laws in the context of using the sonar for training purposes off California's coast.
Date:
April 15, 2008
Creator:
Alexander, Kristina
Object Type:
Report
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 19, No. 14, Ed. 1 Thursday, April 1, 2004
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
April 1, 2004
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History