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538
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114
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37
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30
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28
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Register Closing Effects on Forced Air Heating System Performance
Closing registers in forced air heating systems and leaving some rooms in a house unconditioned has been suggested as a method of quickly saving energy for California consumers. This study combined laboratory measurements of the changes in duct leakage as registers are closed together with modeling techniques to estimate the changes in energy use attributed to closing registers. The results of this study showed that register closing led to increased energy use for a typical California house over a wide combination of climate, duct leakage and number of closed registers. The reduction in building thermal loads due to conditioning only a part of the house was offset by increased duct system losses; mostly due to increased duct leakage. Therefore, the register closing technique is not recommended as a viable energy saving strategy for California houses with ducts located outside conditioned space. The energy penalty associated with the register closing technique was found to be minimized if registers furthest from the air handler are closed first because this tends to only affect the pressures and air leakage for the closed off branch. Closing registers nearer the air handler tends to increase the pressures and air leakage for the whole system. Closing …
Date:
November 1, 2003
Creator:
Walker, Iain S.
Object Type:
Report
System:
The UNT Digital Library
Report of the 21st Session of the IPCC
The Chair gave his opening address, outlining the issues faced by the Panel in preparing for the Fourth Assessment Report and highlighted the rigorous efforts undertaken thus far in scoping the structure and contents of the report. The Panel noted that the preparation of an AR4 SYR that would meet the expectations of most delegations would require extensive consultation and the early and full commitment of many of those who would also be involved in the preparation of the individual Working Group (WG) reports. It noted that the AR4 SYR could: Bring together the main messages from the individual WG reports: Synthesise cross-cutting information from the individual WG reports, including the AR4 cross-cutting themes: Provide a top-down perspective for decision makers on issues covered by the AR4: Produce an overview of the key conclusions of AR4 in non-technical and readily translatable language: Re-assess the policy relevant questions addressed in the TAR SYR.
Date:
November 2003
Creator:
Intergovernmental Panel on Climate Change (IPCC)
Object Type:
Text
System:
The UNT Digital Library
RESULTS OF THE TECHNICAL AND ECONOMIC FEASIBILITY ANALYSIS FOR A NOVEL BIOMASS GASIFICATION-BASED POWER GENERATION SYSTEM FOR THE FOREST PRODUCTS INDUSTRY
In 2001, the Gas Technology Institute (GTI) entered into Cooperative Agreement DE-FC26-01NT41108 with the U.S. Department of Energy (DOE) for an Agenda 2020 project to develop an advanced biomass gasification-based power generation system for near-term deployment in the Forest Products Industry (FPI). The advanced power system combines three advanced components, including biomass gasification, 3-stage stoker-fired combustion for biomass conversion, and externally recuperated gas turbines (ERGTs) for power generation. The primary performance goals for the advanced power system are to provide increased self-generated power production for the mill and to increase wastewood utilization while decreasing fossil fuel use. Additional goals are to reduce boiler NOx and CO{sub 2} emissions. The current study was conducted to determine the technical and economic feasibility of an Advanced Power Generation System capable of meeting these goals so that a capital investment decision can be made regarding its implementation at a paper mill demonstration site in DeRidder, LA. Preliminary designs and cost estimates were developed for all major equipment, boiler modifications and balance of plant requirements including all utilities required for the project. A three-step implementation plan was developed to reduce technology risk. The plant design was found to meet the primary objectives of the project …
Date:
November 1, 2003
Creator:
Bryan, Bruce; Rabovitser, Joseph; Ghose, Sunil & Patel, Jim
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 56, Number 3, November 2003
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:
November 2003
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Roadmap for Agriculture Biomass Feedstock Supply in the United States
The Biomass Research and Development Technical Advisory Committee established a goal that biomass will supply 5% of the nation’s power, 20% of its transportation fuels, and 25% of its chemicals by 2030. These combined goals are approximately equivalent to 30% of the country’s current petroleum consumption. The benefits of a robust biorefinery industry supplying this amount of domestically produced power, fuels, and products are considerable, including decreased demand for imported oil, revenue to the depressed agricultural industry, and revitalized rural economies. A consistent supply of highquality, low-cost feedstock is vital to achieving this goal. This biomass roadmap defines the research and development (R&D) path to supplying the feedstock needs of the biorefinery and to achieving the important national goals set for biomass. To meet these goals, the biorefinery industry must be more sustainable than the systems it will replace. Sustainability hinges on the economic profitability of all participants, on environmental impact of every step in the process, and on social impact of the product and its production. In early 2003, a series of colloquies were held to define and prioritize the R&D needs for supplying feedstock to the biorefinery in a sustainable manner. These colloquies involved participants and stakeholders in …
Date:
November 1, 2003
Creator:
Hess, J. Richard; Foust, Thomas D.; Hoskinson, Reed & Thompson, David
Object Type:
Report
System:
The UNT Digital Library
Round Up, November 2003
Magazine for Texas Lottery retailers that contains news, retailer spotlights, and a list of lottery winners.
Date:
November 2003
Creator:
Texas Lottery Commission
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
RTO Briefing
OAK-B135 Transmission Updates The summary of this report is: (1) Small generators are not happy with FERC's Small Generator Interconnection NOPR, saying the proposed rule ignores much of the consensus developed between small generators and transmission owners during the ANOPR process. California wind generators seek clarification that repowering an existing facility or changing contract terms would not trigger a reevaluation of the interconnection. (2) The choices of former Alliance companies about which RTO to join, MISO or PJM, and whether they can obtain approval from states to do so, has created such a tangle that FERC held two days of hearings at the end of September on the issues and options for resolving them. But in addition to some constructive input, the hearings produced even more uncertainty, with transmission companies announcing their need to reassess their own RTO commitments depending on the decisions of others. (3) In the West, the Seams Steering Group--Western Interconnection (SSG-WI) completed a west-wide transmission study with a renewable energy scenario, the California ISO received FERC's approval on its market redesign proposal, and RTO West worked toward finalizing high-level consensus documents describing Day 1 implementation of the proposed RTO. (4) In Texas, ERCOT began $157 million …
Date:
November 1, 2003
Creator:
Wiese, Steve
Object Type:
Report
System:
The UNT Digital Library
Save with Renewable Energy: A Technical Bulletin for Federal Renewable Energy Champions
This eight-page publication, prepared in 2003 for the U.S. Department of Energy's Federal Energy Management Program by the DOE National Renewable Energy Laboratory, is an updated version of the former Save with Solar and Wind bulletin. Save with Renewable Energy provides up-to-date information about the progress that the government is making in achieving federal goals for renewable energy use; agencies have achieved about 60% of the current goal for 2005 of 1384 gigawatt-hours from renewable energy systems. This publication also describes current and planned federal projects featuring wind, solar, and geothermal systems in several different states.
Date:
November 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[School Group at Day of the Dead Celebration]
Photograph of a school group during a Day of the Dead celebration hosted by the Mexic-Arte Museum in Austin, Texas. The children stand in a gallery. They wear name tags. The walls of the gallery are decorated with colored paper and silver stars.
Date:
November 1, 2003
Creator:
Mexic-Arte Museum (Austin, Tex.)
Object Type:
Photograph
System:
The Portal to Texas History
Science& Technology Review November 2003
This issue of Science & Technology Review covers the following topics: (1) We Will Always Need Basic Science--Commentary by Tomas Diaz de la Rubia; (2) When Semiconductors Go Nano--experiments and computer simulations reveal some surprising behavior of semiconductors at the nanoscale; (3) Retinal Prosthesis Provides Hope for Restoring Sight--A microelectrode array is being developed for a retinal prosthesis; (4) Maglev on the Development Track for Urban Transportation--Inductrack, a Livermore concept to levitate train cars using permanent magnets, will be demonstrated on a 120-meter-long test track; and (5) Power Plant on a Chip Moves Closer to Reality--Laboratory-designed fuel processor gives power boost to dime-size fuel cell.
Date:
November 1, 2003
Creator:
McMahon, D
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Sediment erosion and transport at the Rio Grande mouth : report for the National Border Technology Program and International Boundary and Water Commission.
The mouth of the Rio Grande has become silted up, obstructing its flow into the Gulf of Mexico. This is problematic in that it has created extensive flooding. The purpose of this study was to determine the erosion and transport potential of the sediments obstructing the flow of the Rio Grande by employing a unique Mobile High Shear Stress flume developed by Sandia's Carlsbad Programs Group for the US Army Corps of Engineers. The flume measures in-situ sediment erosion properties at shear stresses ranging from normal flow to flood conditions for a variable depth sediment core. The flume is in a self-contained trailer that can be placed on site in the field. Erosion rates and sediment grain size distributions were determined from sediment samples collected in and around the obstruction and were subsequently used to characterize the erosion potential of the sediments under investigation.
Date:
November 1, 2003
Creator:
Chapin, D. Michael, Jr.; Langford, Richard (University of Texas at El Paso, El Paso, TX); Neu, Roene (University of Texas at El Paso, El Paso, TX); Buhalts, Randy A.; Jepsen, Richard Alan & Roberts, Jesse Daniel
Object Type:
Report
System:
The UNT Digital Library
Seismic Determination of Reservoir Heterogeneity; Application to the Characterization of Heavy Oil Reservoirs
The objective of the project is to examine how seismic and geologic data can be used to improve characterization of small-scale heterogeneity and their parameterization in reservoir models. The study is performed at West Coalinga Field in California. We continued our investigation on the nature of seismic reactions from heterogeneous reservoirs. We began testing our algorithm to infer parameters of object-based reservoir models from seismic data. We began integration of seismic and geologic data to determine the deterministic limits of conventional seismic data interpretation. Lastly, we began integration of seismic and geologic heterogeneity using stochastic models conditioned both on wireline and seismic data.
Date:
November 2003
Creator:
Imhof, Matthias G. & Castle, James W.
Object Type:
Report
System:
The UNT Digital Library
Selected Aspects of the Ecology of the Continental Slope Fauna of the Gulf of Mexico: A synopsis of the Northern Gulf of Mexico Continental Slope Study, 1983-1988
This report is about the Northern Gulf of Mexico Continental Slope Study.
Date:
November 2003
Creator:
Gallaway, Benny J.; Cole, John G. & Fechhelm, Robert G.
Object Type:
Report
System:
The UNT Digital Library
Shutdown of the Federal Government: Causes, Effects, and Process
None
Date:
November 1, 2003
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Simulation of Proton Therapy Treatment Verification via PET imaging of Induced Positron-Emitters
N/A
Date:
November 1, 2003
Creator:
Beebe-Wang, J.; Vaska, P.; Dilmanian, F. A.; Peggs, S. G. & Schlyer, D. J.
Object Type:
Report
System:
The UNT Digital Library
Slipstream, Volume 50, Number 11, November 2003
Monthly magazine published by the Maverick Region of the Porsche Club of America containing stories related to the organization or of interest to the group's members including news, upcoming and past events, other feature articles, and classified advertisements.
Date:
November 2003
Creator:
Porsche Club of America. Maverick Region.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
SMART POWER TURBINE
Gas turbines are the choice technology for high-performance power generation and are employed in both simple and combined cycle configurations around the world. The Smart Power Turbine (SPT) program has developed new technologies that are needed to further extend the performance and economic attractiveness of gas turbines for power generation. Today's power generation gas turbines control firing temperatures indirectly, by measuring the exhaust gas temperature and then mathematically calculating the peak combustor temperatures. But temperatures in the turbine hot gas path vary a great deal, making it difficult to control firing temperatures precisely enough to achieve optimal performance. Similarly, there is no current way to assess deterioration of turbine hot-gas-path components without shutting down the turbine. Consequently, maintenance and component replacements are often scheduled according to conservative design practices based on historical fleet-averaged data. Since fuel heating values vary with the prevalent natural gas fuel, the inability to measure heating value directly, with sufficient accuracy and timeliness, can lead to maintenance and operational decisions that are less than optimal. GE Global Research Center, under this Smart Power Turbine program, has developed a suite of novel sensors that would measure combustor flame temperature, online fuel lower heating value (LHV), and hot-gas-path …
Date:
November 1, 2003
Creator:
Nirmalan, Nirm V.
Object Type:
Report
System:
The UNT Digital Library
South Texas College of Law Annotations (Houston, Tex.), Vol. 34, No. 3, Ed. 1, November, 2003
Student newspaper from South Texas College of Law that includes local, state and campus news along with advertising.
Date:
November 2003
Creator:
Laird, Lori Magee
Object Type:
Newspaper
System:
The Portal to Texas History
A Special Investigations Unit Report Regarding The Texas State Soil and Water Conservation Board
Report of the Texas State Auditor's Office related to an investigation by the State Auditor's Special Investigations Unit, which determined that Terry J. Rodriguez, a former employee of the Haskell Soil and Water Conservation District (District), misappropriated $5,702 of state funds and $1,196 of District funds while she was employed by the District.
Date:
November 2003
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
[Spectators enjoying the performance of the band at the cafe]
Photograph of people watching the band perform at the Camp St Cafe & Store. Based in Crockett, Texas, this café has been serving up the best in acoustic roots music, in the shadow of the courthouse for over twenty years now.
Date:
November 2003
Creator:
Mallory, Randy
Object Type:
Photograph
System:
The UNT Digital Library
Starting Solid Foods : An Infant Class With Activities
This document provides an instructional lesson plan for parents that consist of mixing cereal, introducing solid foods, and targeting healthy habits for their newborn infants.
Date:
November 2003
Creator:
Texas. Department of Health. Bureau of Nutrition Services.
Object Type:
Book
System:
The Portal to Texas History
Statistical Wind Power Forecasting for U.S. Wind Farms: Preprint
Electricity markets in the United States are evolving. Accurate wind power forecasts are beneficial for wind plant operators, utility operators, and utility customers. An accurate forecast allows grid operators to schedule economically efficient generation to meet the demand of electrical customers. The evolving markets hold some form of auction for various forward markets, such as hour ahead or day ahead. This paper describes several statistical forecasting models that can be useful in hour-ahead markets. Although longer-term forecasting relies on numerical weather models, the statistical models used here focus on the short-term forecasts that can be useful in the hour-ahead markets. The purpose of the paper is not to develop forecasting models that can compete with commercially available models. Instead, we investigate the extent to which time-series analysis can improve simplistic persistence forecasts. This project applied a class of models known as autoregressive moving average (A RMA) models to both wind speed and wind power output. The results from wind farms in Minnesota, Iowa, and along the Washington-Oregon border indicate that statistical modeling can provide a significant improvement in wind forecasts compared to persistence forecasts.
Date:
November 1, 2003
Creator:
Milligan, M.; Schwartz, M. N. & Wan, Y.
Object Type:
Article
System:
The UNT Digital Library
Steam Digest 2002
Steam Digest 2002 is a collection of articles published in the last year on steam system efficiency. DOE directly or indirectly facilitated the publication of the articles through it's BestPractices Steam effort. Steam Digest 2002 provides a variety of operational, design, marketing, and program and program assessment observations. Plant managers, engineers, and other plant operations personnel can refer to the information to improve industrial steam system management, efficiency, and performance.
Date:
November 1, 2003
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Summary and results of the joint WMD-DAC/Alameda County bioterrorism response plan exercise.
On June 12,2003, the Alameda County Public Health Department and Sandia National Laboratories/CA jointly conducted an exercise that used a Weapons of Mass Destruction-Decision Analysis Center (WMD-DAC) bioterrorism attack simulation to test the effectiveness of the county's emergency response plan. The exercise was driven by an assumed release (in the vicinity of the Berkeley Marina), and subsequent spread, of a small quantity of aerosolized, weapons-grade anthrax spores. The simulation used several key WMD-DAC capabilities, namely: (1) integration with an atmospheric dispersion model to calculate expected dose levels in the affected areas, (2) a individual-tracking capability for both infected and non-infected persons as they made decisions, sought treatment, and received prophylaxis drugs, and (3) a user interface that allows exercise participants to affect the scenario evolution and outcome. The analysis of the county's response plan included documenting and reviewing the decisions made by participants during the exercise. Twenty-six local and regional officials representing the health care system, emergency medical services and law enforcement were involved in responding to the simulated attack. The results of this joint effort include lessons learned both by the Alameda County officials regarding implementation of their bioterrorism response plan and by the Sandia representatives about conducting exercises …
Date:
November 1, 2003
Creator:
Manley, Dawn Kataoka; Lipkin, Joel; West, Todd H.; Tam, Ricky; Hirano, Howard H. & Ammerlahn, Heidi R.
Object Type:
Report
System:
The UNT Digital Library