Partner
UNT Libraries Government Documents Department
945
UNT Libraries Special Collections
190
Oklahoma Historical Society
126
Sterling Municipal Library
31
National Museum of the Pacific War/Admiral Nimitz Foundation
27
Carl Albert Congressional Research and Studies Center
18
Alvin Community College
14
UNT Libraries
11
FM Buck Richards Library
9
Gaines County Library
9
71 More
Collection
Office of Scientific & Technical Information Technical Reports
615
Texas Digital Newspaper Program
282
Congressional Research Service Reports
161
Oklahoma Digital Newspaper Program
150
Tocker Foundation Grant
137
Government Accountability Office Reports
107
Texas Daily Newspaper Association
72
KXAS-NBC 5 News Collection
37
The Baytown Sun
31
Altus Times-Democrat
27
123 More
Country
States
Decade
Year
Month
Language
1,622 Matching Results
Results open in a new window/tab.
prev
Results:
1,609 - 1,622 of
1,622
United Orthodox Synagogues of Houston Bulletin, March 2004
Newsletter of the United Orthodox Synagogues in Houston, including news and events, upcoming services, member announcements, editorials, and other information of interest to congregants.
Date:
March 2004
Creator:
United Orthodox Synagogues of Houston
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Use of bark-derived pyrolysis oils ass a phenol substitute in structural panel adhesives
The main objective of this program was to pilot the world's first commercial-scale production of an acceptable phenol formaldehyde (PF) resin containing natural resin (NR) ingredients, for use as an adhesive in Oriented-Strand Board (OSB) and plywood panel products. Natural Resin products, specifically MNRP are not lignin ''fillers''. They are chemically active, natural phenolics that effectively displace significant amounts of phenol in PF resins, and which are extracted from bark-derived and wood-derived bio-oils. Other objectives included the enhancement of the economics of NR (MNRP) production by optimizing the production of certain Rapid Thermal Processing (RTP{trademark}) byproducts, particularly char and activated carbon. The options were to activate the char for use in waste-water and/or stack gas purification. The preliminary results indicate that RTP{trademark} carbon may ultimately serve as a feedstock for activated carbon synthesis, as a fuel to be used within the wood product mill, or a fuel for an electrical power generating facility. Incorporation of the char as an industrial heat source for use in mill operations was L-P's initial intention for the carbon, and was also of interest to Weyerhaeuser as they stepped into in the project.
Date:
March 1, 2004
Creator:
Corp, Louisiana Pacific
Object Type:
Report
System:
The UNT Digital Library
Validated modeling of distributed energy resources at distribution voltages : LDRD project 38672.
A significant barrier to the deployment of distributed energy resources (DER) onto the power grid is uncertainty on the part of utility engineers regarding impacts of DER on their distribution systems. Because of the many possible combinations of DER and local power system characteristics, these impacts can most effectively be studied by computer simulation. The goal of this LDRD project was to develop and experimentally validate models of transient and steady state source behavior for incorporation into utility distribution analysis tools. Development of these models had not been prioritized either by the distributed-generation industry or by the inverter industry. A functioning model of a selected inverter-based DER was developed in collaboration with both the manufacturer and industrial power systems analysts. The model was written in the PSCAD simulation language, a variant of the ElectroMagnetic Transients Program (EMTP), a code that is widely used and accepted by utilities. A stakeholder team was formed and a methodology was established to address the problem. A list of detailed DER/utility interaction concerns was developed and prioritized. The list indicated that the scope of the problem significantly exceeded resources available for this LDRD project. As this work progresses under separate funding, the model will be …
Date:
March 1, 2004
Creator:
Ralph, Mark E. & Ginn, Jerry W.
Object Type:
Report
System:
The UNT Digital Library
Vegetation of Upper Coastal Plain depression wetlands: Environmental templates and wetland dynamics within a landscape framework.
Reference wetlands play an important role in efforts to protect wetlands and assess wetland condition. Because wetland vegetation integrates the influence of many ecological factors, a useful reference system would identify natural vegetation types and include models relating vegetation to important regional geomorphic, hydrologic, and geochemical properties. Across the U.S. Atlantic Coastal Plain, depression wetlands are a major hydrogeomorphic class with diverse characteristics. For 57 functional depression wetlands in the Upper Coastal Plain of South Carolina, we characterized the principal vegetation types and used a landscape framework to assess how local (wetland-level) factors and regional landscape settings potentially influence vegetation composition and dynamics. Wetland sites were stratified across three Upper Coastal Plain landscape settings that differ in soils, surface geology, topography, and land use. We sampled plant composition, measured relevant local variables, and analyzed historical transitions in vegetative cover types. Cluster analysis identified six vegetation types, ranging from open-water ponds and emergent marshes to closed forests. Significant vegetation-environment relationships suggested environmental ''templates'' for plant community development. Of all local factors examined, wetland hydrologic regime was most strongly correlated with vegetation type, but depression size, soil textural type, and disturbance history were also significant. Because hydrogeologic settings influence wetland features, local …
Date:
March 1, 2004
Creator:
De Steven, Diane & Toner, Maureen, M.
Object Type:
Article
System:
The UNT Digital Library
Water District Financial Management Guide
Guidelines and minimum standards for water districts to prepare annual financial statements and maintain fiscal records.
Date:
March 2004
Creator:
Texas Commission on Environmental Quality. Water Supply Division.
Object Type:
Text
System:
The Portal to Texas History
Wavelengths of the 4s1/2 - 4p3/2 resonance lines in Cu- and Zn-like heavy ions
Using an electron beam ion trap and a high-resolution flat-field spectrometer, the EUV resonance lines 4s{sub 1/2} - 4p{sub 3/2} of the Cu- and Zn-like ions of Os, Bi, Th, and U (Z = 76-92) have been observed and their wavelengths measured. Our experiments remove systematic errors from line blends encountered in earlier work. Our results on Cu-like ions are in good agreement with recent ab initio calculations for all ions that include QED. Our results for Zn-like ions corroborate and extend our earlier findings, but consistently good theoretical values for comparison are lacking.
Date:
March 1, 2004
Creator:
Beiersdorfer, P; Chen, H & Trabert, E
Object Type:
Article
System:
The UNT Digital Library
[Western swing research, 1]
Research for an article about western swing music that was published in the March 2004 issue of Texas Highways magazine.
Date:
2004-03~
Creator:
Mallory, Randy
Object Type:
Text
System:
The UNT Digital Library
[Western swing research, 2]
Research for an article about western swing music that was published in the March 2004 issue of Texas Highways magazine.
Date:
2004-03~
Creator:
Mallory, Randy
Object Type:
Text
System:
The UNT Digital Library
[Western swing resources]
Resource list for an article about western swing music that was published in the March 2004 issue of Texas Highways magazine.
Date:
2004-03~
Creator:
Mallory, Randy
Object Type:
Text
System:
The UNT Digital Library
Wind Power Impacts on Electric Power System Operating Costs: Summary and Perspective on Work to Date; Preprint
Electric utility system planners and operators are concerned that variations in wind plant output may increase the operating costs of the system. This concern arises because the system must maintain an instantaneous balance between the aggregate demand for electric power and the total power generated by all power plants feeding the system. This is a highly sophisticated task that utility operators and automatic controls perform routinely, based on well-known operating characteristics for conventional power plants and a great deal of experience accumulated over many years. System operators are concerned that variations in wind plant output will force the conventional power plants to provide compensating variations to maintain system balance, thus causing the conventional power plants to deviate from operating points chosen to minimize the total cost of operating the system. The operators' concerns are compounded by the fact that conventional power plants are generally under their control and thus are dispatchable, whereas wind plants are controlled instead by nature. Although these are valid concerns, the key issue is not whether a system with a significant amount of wind capacity can be operated reliably, but rather to what extent the system operating costs are increased by the variability of the wind.
Date:
March 1, 2004
Creator:
Smith, J. C.; DeMeo, E. A.; Parsons, B. & Milligan, M.
Object Type:
Article
System:
The UNT Digital Library
Wind Power Today and Tomorrow
Wind Power Today and Tomorrow is an annual publication that provides an overview of the wind research conducted under the U.S. Department of Energy's Wind and Hydropower Technologies Program. The purpose of Wind Power Today and Tomorrow is to show how DOE supports wind turbine research and deployment in hopes of furthering the advancement of wind technologies that produce clean, low-cost, reliable energy. Content objectives include: educate readers about the advantages and potential for widespread deployment of wind energy; explain the program's objectives and goals; describe the program's accomplishments in research and application; examine the barriers to widespread deployment; describe the benefits of continued research and development; facilitate technology transfer; and attract cooperative wind energy projects with industry. This 2003 edition of the program overview also includes discussions about wind industry growth in 2003, how DOE is taking advantage of low wind speed region s through advancing technology, and distributed applications for small wind turbines.
Date:
March 1, 2004
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Wireless Mine-Wide Telecommunications Technology: Final Technical Progress Report
A comprehensive mine-wide, two-way wireless voice and data communication system for the underground mining industry was developed. The system achieves energy savings through increased productivity and greater energy efficiency in meeting safety requirements within mines. The mine-wide system is comprised of two interfaced subsystems: a through-the-earth communications system and an in-mine communications system. The mine-wide system permits two-way communication among underground personnel and between underground and surface personnel. The system was designed, built, and commercialized. Several systems are in operation in underground mines in the United States. The use of these systems has proven they result in considerable energy savings. A system for tracking the location of vehicles and people within the mine was also developed, built and tested successfully. Transtek's systems are being used by the National Institute of Occupational Safety and Health (NIOSH) in their underground mine rescue team training program. This project also resulted in a spin-off rescue team lifeline and communications system. Furthermore, the project points the way to further developments that can lead to a GPS-like system for underground mines allowing the use of autonomous machines in underground mining operations, greatly reducing the amount of energy used in these operations. Some products developed under this …
Date:
March 2004
Creator:
Meiksin, Zvi H.
Object Type:
Report
System:
The UNT Digital Library
WTP Pilot-Scale Evaporation Tests
This report documents the design, assembly, and operation of a Pilot-Scale Evaporator built and operated by SRTC in support of Waste Treatment Plant (WTP) Project at the DOE's Hanford Site. The WTP employs three identical evaporators, two for the Waste Feed and one for the Treated LAW. The Pilot-Scale Evaporator was designed to test simulants for both of these waste streams. The Pilot-Scale Evaporator is 1/76th scale in terms of evaporation rates. The basic configuration of forced circulation vacuum evaporator was employed. A detailed scaling analysis was performed to preserve key operating parameters such as basic loop configuration, system vacuum, boiling temperature, recirculation rates, vertical distances between important hardware pieces, reboiler heat transfer characteristics, vapor flux, configuration of demisters and water spray rings. Three evaporation test campaigns were completed. The first evaporation run used water in order to shake down the system. The water runs were important in identifying a design flaw that inhibited mixing in the evaporator vessel, thus resulting in unstable boiling operation. As a result the loop configuration was modified and the remaining runs were completed successfully. Two simulant runs followed the water runs. Test 1: Simulated Ultrafiltration Recycles with HLW SBS, and Test 2: Treated AN102 …
Date:
March 1, 2004
Creator:
QURESHI, ZAFAR
Object Type:
Report
System:
The UNT Digital Library
Z-Interop Phase 2: An Alternative Approach to Interoperability Testing
This is the project website for Z-Interop Phase 2: An Alternative Approach to Interoperability Testing. This website contains project documentation for Phase 2, with additional information on the previous Phase 1 project.
Date:
March 2004
Creator:
Moen, William E.
Object Type:
Website
System:
The UNT Digital Library