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The Low-Income Home Energy Assistance Program: How are State Allotments Determined?
This report discusses the Low-Income Home Energy Assistance Program (LIHEAP), which is a block grant program under which the federal government provides states annual grants to operate multi-component home energy assistance programs for needy households.
Date:
April 17, 2001
Creator:
Abbey, Craig W.
Object Type:
Report
System:
The UNT Digital Library
Ensemble: 2001-04-21 - African Cultural Festival
Access:
Use of this item is restricted to the UNT Community
Ensemble performance at the UNT College of Music Winspear Hall.
Date:
April 21, 2001
Creator:
African Cultural Festival
Object Type:
Sound
System:
The UNT Digital Library
An integrated solution for secure group communication in wide-area networks
Many distributed applications require a secure reliable group communication system to provide coordination among the application components. This paper describes a secure group layer (SGL) which bundles a reliable group communication system, a group authorization and access control mechanism, and a group key agreement protocol to provide a comprehensive and practical secure group communication platform. SGL also encapsulates the standard message security services (i.e, confidentiality, authenticity and integrity). A number of challenging issues encountered in the design of SGL are brought to light and experimental results obtained with a prototype implementation are discussed.
Date:
April 1, 2001
Creator:
Agarwal, Deborah A.; Chevassut, Olivier; Thompson, Mary & Tsudik, Gene
Object Type:
Article
System:
The UNT Digital Library
Variation of nominal contact pressure with time during sliding wear.
None
Date:
April 9, 2001
Creator:
Ajayi, O. O. & Erck, R. A.
Object Type:
Article
System:
The UNT Digital Library
Optical Imaging in Microstructures
This research was focused on developing morphology-dependent stimulated raman scattering (MDSRS) spectroscopy as an analytic optical imaging technique. MDSRS uses the cavity modes (called morphology dependent resonances, MDRs) associated with axisymmetric dielectric microstructures to generate nonlinear optical signals. Since different cavity modes span different regions inside the microstructure, it becomes possible to generate location-specific spectra. The information gotten from MDSRS imaging experiments is analogous with that generated from magnetic resonance imaging (MRI) studies in that spatial variations in chemical composition and molecular configuration within a structure can be mapped out. The authors demonstrated that MDSRS imaging is feasible and is free from nonlinear artifact. They did this by measuring the molecular structure variations that are present in the interfaces of 180 {micro}m dia. charged water droplets. The 4 publications that resulted from these studies are attached. From a chemical perspective a water droplet is, however, a simple thing. Will it be possible to use MDSRS imaging to study more complex systems such as combusting fuel droplets, layered polymer or glass fibers, or biological cells? The long-term goal of the research was to answer this question. The answer they have come up with is yes and no. The results on nitrate …
Date:
April 11, 2001
Creator:
Aker, P. M.
Object Type:
Report
System:
The UNT Digital Library
PRODUCTION OF NEW BIOMASS/WASTE-CONTAINING SOLID FUELS
CQ Inc. and its team members (ALSTOM Power Inc., Bliss Industries, McFadden Machine Company, and industry advisors from coal-burning utilities, equipment manufacturers, and the pellet fuels industry) addressed the objectives of the Department of Energy and industry to produce economical, new solid fuels from coal, biomass, and waste materials that reduce emissions from coal-fired boilers. This project builds on the team's commercial experience in composite fuels for energy production. The electric utility industry is interested in the use of biomass and wastes as fuel to reduce both emissions and fuel costs. In addition to these benefits, utilities also recognize the business advantage of consuming the waste byproducts of customers both to retain customers and to improve the public image of the industry. Unfortunately, biomass and waste byproducts can be troublesome fuels because of low bulk density, high moisture content, variable composition, handling and feeding problems, and inadequate information about combustion and emissions characteristics. Current methods of co-firing biomass and wastes either use a separate fuel receiving, storage, and boiler feed system, or mass burn the biomass by simply mixing it with coal on the storage pile. For biomass or biomass-containing composite fuels to be extensively used in the U.S., especially …
Date:
April 20, 2001
Creator:
Akers, David J.; Shirey, Glenn A.; Zitron, Zalman & Maney, Charles Q.
Object Type:
Report
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
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
Tanks Focus Area Site Needs Assessment - FY 2001
The TFA uses a systematic process for developing its annual program that draws from the tanks science and technology development needs expressed by the five DOE tank waste sites. TFA's annual program development process is iterative and involves the following steps: Collection of site needs; Needs analysis; Development of technical responses and initial prioritization; Refinement of the program for the next fiscal year; Formulation of the Corporate Review Budget (CRB); Preparation of Program Execution Guidance (PEG) for the next FY Revision of the Multiyear Program Plan (MYPP). This document describes the outcomes of the first phase of this process, from collection of site needs to the initial prioritization of technical activities. The TFA received site needs in October - December 2000. A total of 170 site needs were received, an increase of 30 over the previous year. The needs were analyzed and integrated, where appropriate. Sixty-six distinct technical responses were drafted and prioritized. In addition, seven strategic tasks were approved to compete for available funding in FY 2002 and FY 2003. Draft technical responses were prepared and provided to the TFA Site Representatives and the TFA User Steering Group (USG) for their review and comment. These responses were discussed at …
Date:
April 30, 2001
Creator:
Allen, Bob W; Josephson, Gary B; Westsik, Joseph H & Nickola, Cheryl L
Object Type:
Report
System:
The UNT Digital Library
Tanks Focus Area Site Needs Assessment - FY 2001
The TFA uses a systematic process for developing its annual program that draws from the tanks science and technology development needs expressed by the five DOE tank waste sites. TFA's annual program development process is iterative and involves the following steps: Collection of site needs; Needs analysis; Development of technical responses and initial prioritization; Refinement of the program for the next fiscal year; Formulation of the Corporate Review Budget (CRB); Preparation of Program Execution Guidance (PEG) for the next FY Revision of the Multiyear Program Plan (MYPP). This document describes the outcomes of the first phase of this process, from collection of site needs to the initial prioritization of technical activities. The TFA received site needs in October - December 2000. A total of 170 site needs were received, an increase of 30 over the previous year. The needs were analyzed and integrated, where appropriate. Sixty-six distinct technical responses were drafted and prioritized. In addition, seven strategic tasks were approved to compete for available funding in FY 2002 and FY 2003. Draft technical responses were prepared and provided to the TFA Site Representatives and the TFA User Steering Group (USG) for their review and comment. These responses were discussed at …
Date:
April 30, 2001
Creator:
Allen, Robert W.; Josephson, Gary B.; Westsik, Joseph H. & Nickola, Cheryl L.
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Antonio Amador, April 25, 2001
Interview with Antonio Amador, a veteran who was wounded in action as a sniper with the U.S. Marine Corps during the Vietnam War. It includes a list of questions, which include a focus on Amador being shot and his experiences while serving and back at home.
Date:
April 25, 2001
Creator:
Amador, Y. & Amador, Antonio
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with W. R. Barker, April 25, 2001
Interview with W. R. Barker, a veteran who served as a combat engineer with the U.S. Army in the South Pacific during World War II. It includes a conversation with Barker as he talks freely about his time in basic training at Camp Cook, when Bob Hope visited jungle training in Hawaii, and interactions between U.S. soldiers and the native islanders. He also discusses the Marines mission on Pelilu Island and meeting his brother in the Philippines.
Date:
April 25, 2001
Creator:
Amador, Yacel & Barker, W. R.
Object Type:
Sound
System:
The Portal to Texas History
Southwest Retort, Volume 53, Number 8, April 2001
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
April 2001
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Newsletter of the Texas Chapter of the American Fisheries Society, Volume 27, Number 1, Spring 2001
Newsletter of the Texas Chapter of the American Fisheries Society containing information about the organization, membership, and field of aquaculture and ecosystem management.
Date:
April 2001
Creator:
American Fisheries Society. Texas Chapter.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Analysis of Measurement Uncertainties in the Nulling Test for Air Leakage From Residential Ducts.
An analysis of measurement uncertainties in a recently proposed method of measuring air leakage in residential duct systems has been carried out. The uncertainties in supply and return leakage rates are expressed in terms of the value of the envelope leakage flow coefficient and the uncertainties in measured pressures and air flow rates. Results of the analysis are compared with data published by two research groups.
Date:
April 1, 2001
Creator:
Andrews, J. W.
Object Type:
Report
System:
The UNT Digital Library
Impacts of Refrigerantline Length on System Efficiency in Residential Heating and Cooling Systems Using Refrigerant Distribution.
The effects on system efficiency of excess refrigerant line length are calculated for an idealized residential heating and cooling system. By excess line length is meant refrigerant tubing in excess of the 25 R provided for in standard equipment efficiency test methods. The purpose of the calculation is to provide input for a proposed method for evaluating refrigerant distribution system efficiency. A refrigerant distribution system uses refrigerant (instead of ducts or pipes) to carry heat and/or cooling effect from the equipment to the spaces in the building in which it is used. Such systems would include so-called mini-splits as well as more conventional split systems that for one reason or another have the indoor and outdoor coils separated by more than 25 ft. This report performs first-order calculations of the effects on system efficiency, in both the heating and cooling modes, of pressure drops within the refrigerant lines and of heat transfer between the refrigerant lines and the space surrounding them.
Date:
April 1, 2001
Creator:
Andrews, J. W.
Object Type:
Report
System:
The UNT Digital Library
Spin Effects in the Fragmentation of Transversely Polarized and Unpolarized Quarks.
We study the fragmentation of a transversely polarized quark into a non-collinear (k{perpendicular} {ne} 0) spinless hadron and the fragmentation of an unpolarized quark into a non collinear transversely polarized spin 1/2 baryon. These nonperturbative properties are described by spin and k{perpendicular} dependent fragmentation functions and are revealed in the observation of single spin asymmetries. Recent data on the production of pions in polarized semi-inclusive DIS and long known data on A polarization in unpolarized p-N processes are considered: these new fragmentation functions can describe the experimental results and the single spin effects in the quark fragmentation turn out to be surprisingly large.
Date:
April 23, 2001
Creator:
Anselmino, M.; Boer, D.; D'Alesio, U. & Murgia, F.
Object Type:
Article
System:
The UNT Digital Library
L Polarization in Unpolarized Hadron Reactions.
The transverse polarization observed in the inclusive production of {Lambda} hyperons in the high energy collisions of unpolarized hadrons is tackled by considering a new set of spin and {kappa}{perpendicular} dependent quark fragmentation functions. Simple phenomenological expressions for these new ''polarizing fragmentation functions'' are obtained by a fit of the data on {Lambda}'s and {bar {Lambda}}'s produced in p - N processes.
Date:
April 23, 2001
Creator:
Anselmino, M.; Boer, D.; Dalesio, U. & Murgia, F.
Object Type:
Article
System:
The UNT Digital Library
[1st Naomi Bruton arts scholarship award winner]
Video recording from The Black Academy of Arts and Letters recorded following "Talking Funny With Hot Blues & Jazz" Saturday's performance. The footage shows the awarding of the 1st Naomi Burton Arts Scholarship. Performer Cece Antoinette is Naomi Brutons daughter.
Date:
April 7, 2001
Creator:
Antoinette, Cece; Kemp, Emme & King, Curtis
Object Type:
Video
System:
The UNT Digital Library
Arbuckle Mountains
Photograph of a scene the Arbuckle Mountains.
Date:
April 9, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Arbuckle Mountains
Photograph of a scene the Arbuckle Mountains.
Date:
April 9, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Arbuckle Mountains
Photograph of a scene the Arbuckle Mountains.
Date:
April 9, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Arbuckle Mountains
Photograph of a scene the Arbuckle Mountains.
Date:
April 9, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Arbuckle Mountains
Photograph of a scene on Interstate 35, in the Arbuckle Mountains.
Date:
April 9, 2001
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History