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Analysis of NREL Cold-Drink Vending Machines for Energy Savings
NREL Staff, as part of Sustainable NREL, an initiative to improve the overall energy and environmental performance of the lab, decided to control how its vending machines used energy. The cold-drink vending machines across the lab were analyzed for potential energy savings opportunities. This report gives the monitoring and the analysis of two energy conservation measures applied to the cold-drink vending machines at NREL.
Date:
June 1, 2003
Creator:
Deru, M.; Torcellini, P.; Bottom, K. & Ault, R.
Object Type:
Report
System:
The UNT Digital Library
Annual Birding & Nature Festivals of Texas: 2003-2004
Annual guide listing festivals in the state of Texas that are related to birds or other wildlife, providing descriptions, dates, and contact information.
Date:
June 2003
Creator:
Texas. Parks and Wildlife Department.
Object Type:
Pamphlet
System:
The Portal to Texas History
Annual Report for Environmental Management Science Program Project Number 86598 Coupled Flow and Reactivity in Variably Saturated Porous Media
Improved models of contaminant migration in heterogeneous, variably saturated porous media are required to better define the long-term stewardship requirements for U.S. Department of Energy (DOE) lands and to assist in the design of effective vadose zone barriers to contaminant migrations. The objective of our three-year project is to meet the DOE need by developing new experimental approaches to describe adsorption and transport of contaminants in heterogeneous, variably saturated media (i.e., the vadose zone). The research specifically addresses the behavior of strontium, a high priority DOE contaminant. However, the key benefit of this research is improved conceptual models of how all contaminants migrate through heterogeneous, variably-saturated, porous media. Research activities are driven by the hypothesis that the reactivity of variably saturated porous media is dependent on the moisture content of the medium and can be represented by a relatively simple function applicable over a range of scales, contaminants, and media. A key and novel aspect of our research is the use of the 2-meter radius geocentrifuge capabilities at the Idaho National Engineering and Environmental Laboratory (INEEL) to conduct unsaturated reactive transport experiments (Figure 1). The experimental approach using the geocentrifuge provides data in a much shorter time period than conventional …
Date:
June 1, 2003
Creator:
Palmer, Carl D.; Mattson, Earl D. & Smith, Robert W.
Object Type:
Report
System:
The UNT Digital Library
Annual Report submitted on the PNNL portion of EMSP Project No. 86729
A migration-resistant fraction (MRF) is a portion of a polluted sediment's contaminant inventory that exhibits slow release. Slow release is a key process that controls organic contaminant transport and fate in a plume long after the major portion of the contaminant inventory of a source term has been depleted or removed. Slow release rates are not well understood nor are they commonly accounted for in subsurface numerical transport models. In this project, we propose to study the accumulation and slow-release behavior of carbon tetrachloride (CCl4) MRF as a function of time, contaminant concentration and different physicochemical properties of sediments. Both model materials that mimic the physical/chemical properties of sediments and natural sediments will be used in project studies. Experiments will be conducted at macro- and microscopic scales under both unsaturated (Washington State University-WSU) and saturated conditions (Pacific Northwest National Laboratory-PNNL). The results will be used to (1) develop a mechanistic description of slow release of CCl4 in the subsurface environment and (2) lay the groundwork for improving the robustness of numerical models that predict organic contaminant transport and fate under natural conditions. The outcomes of this study are expected to improve the conceptual model of CCl4 subsurface transport and fate …
Date:
June 1, 2003
Creator:
Riley, Robert; Amonette, James & Peyton, Brent
Object Type:
Report
System:
The UNT Digital Library
Application of INCSEA principles to the Taiwan Strait.
The waters surrounding Taiwan are important international waterways. In addition to merchant ships of every nation, the warships of the United States, Japan, Russia, and China may appear in these waters. No hostility is expected between Taiwan and the United States, Japan, or Russia; however, Taiwan and China have a tense relationship, and both sides face a potential for naval incidents. As Taiwan and China expand their naval capability, the International Maritime Organization Convention for the lnternational Regulations for Preventing Collisions at Sea may not be sufficient to prevent naval incidents, any of which might develop into conflict or war. Therefore, China and Taiwan need to develop maritime confidence building measures (CBMs) that could reduce the chance of naval incidents and strengthen mutual trust and confidence. Among the variety of maritime CBM concepts for military purposes, the most successful and effective measure has been the 1972 U.S.-Soviet Union Agreement on the Prevention of Incidents On and Over the High Seas (INCSEA). The success of the agreement demonstrates that CBMs represent a workable alternative to traditional arms controls. The purpose of this paper is to suggest a concrete approach to the constraint of naval activities between China and Taiwan to reduce …
Date:
June 1, 2003
Creator:
Wen-Chung, Chai (Taiwan Navy, Taiwan)
Object Type:
Report
System:
The UNT Digital Library
The Aqueous Thermodynamics and Complexation Reactions of Anionic Silica and Uranium Species to High Concentration
The objective of this research project is to develop the necessary thermodynamic data, including aqueous phase stability constants and Pitzer ion-interaction parameters, to predict the changes in the aqueous phase chemistry that occur when high ionic strength, highly basic tank wastes enter the vadose zone.
Date:
June 1, 2003
Creator:
Choppin, Gregory R.
Object Type:
Report
System:
The UNT Digital Library
The Aqueous Thermodynamics and Complexation Reactions of Anionic Silica and Uranium Species to High Concentration
The objective of this research project is to develop the necessary thermodynamic data, including aqueous phase stability constants and Pitzer ion-interaction parameters, to predict the changes in aqueous phase chemistry that occur when high ionic strength , highly basic tank wastes enter the vadose zone.
Date:
June 1, 2003
Creator:
Choppin, Gregory R.
Object Type:
Report
System:
The UNT Digital Library
[Architectural Brilliance: Tadao Ando's Masterpiece at the Modern Art Museum]
Discover the awe-inspiring architectural marvel of the Modern Art Museum of Fort Worth. Designed by renowned architect Tadao Ando, the museum's concrete walls and transparent glass elements create a harmonious blend of form and function. Marvel at the massive planar walls, the elegant floating pavilions, and the captivating play of natural light that illuminates the galleries. This iconic building stands as a testament to the seamless integration of art and architecture.
Date:
June 2003
Creator:
Mallory, Randy
Object Type:
Photograph
System:
The UNT Digital Library
[An Architectural Masterpiece: The Modern Art Museum of Fort Worth]
Experience the awe-inspiring design of Tadao Ando as massive concrete walls and transparent glass create a harmonious blend of form and function. With its floating appearance and abundant natural light, the museum captivates visitors and provides a stunning backdrop for contemporary art.
Date:
June 2003
Creator:
Mallory, Randy
Object Type:
Photograph
System:
The UNT Digital Library
[Architectural Splendor: The Modern Art Museum of Fort Worth]
Discover the awe-inspiring design of the Modern Art Museum of Fort Worth, hailed as one of the world's most beautiful art museums. Designed by acclaimed architect Tadao Ando, the museum's concrete and glass structure showcases bold lines and immense transparent walls, creating an exquisite interplay of light and space. With its iconic Y-shaped columns and captivating reflection on the surrounding water, this architectural masterpiece is a must-visit destination for art and design enthusiasts.
Date:
June 2003
Creator:
Mallory, Randy
Object Type:
Photograph
System:
The UNT Digital Library
[Ascending Perspectives: Ladder for Booker T. Washington]
In Martin Puryear's captivating sculpture, Ladder for Booker T. Washington, the artist masterfully employs forced perspective to create an illusion of vast distance and height. The towering thirty-six-foot artwork gracefully reaches towards the gallery's lofty ceiling, inviting viewers to contemplate themes of progress, aspiration, and equality. Displayed at the renowned Modern Art Museum of Fort Worth, Texas, this monumental sculpture captivates with its striking form and thought-provoking presence.
Date:
June 2003
Creator:
Mallory, Randy
Object Type:
Photograph
System:
The UNT Digital Library
Assessment, development, and testing of glass for blast environments.
Glass can have lethal effects including fatalities and injuries when it breaks and then flies through the air under blast loading (''the glass problem''). One goal of this program was to assess the glass problem and solutions being pursued to mitigate it. One solution to the problem is the development of new glass technology that allows the strength and fragmentation to be controlled or selected depending on the blast performance specifications. For example the glass could be weak and fail, or it could be strong and survive, but it must perform reliably. Also, once it fails it should produce fragments of a controlled size. Under certain circumstances it may be beneficial to have very small fragments, in others it may be beneficial to have large fragments that stay together. The second goal of this program was to evaluate the performance (strength, reliability, and fragmentation) of Engineered Stress Profile (ESP) glass under different loading conditions. These included pseudo-static strength and pressure tests and free-field blast tests. The ultimate goal was to provide engineers and architects with a glass whose behavior under blast loading is less lethal. A near-term benefit is a new approach for improving the reliability of glass and modifying …
Date:
June 1, 2003
Creator:
Glass, Sarah Jill
Object Type:
Report
System:
The UNT Digital Library
Atmospheric-Pressure Plasma Cleaning of Contaminated Surfaces
The objective of this work is to demonstrate a practical, atmospheric pressure plasma tool for the surface decontamination of radioactive waste. Decontamination of radioactive materials that have accumulated on the surfaces of equipment and structures is a challenging and costly undertaking for the US Department of Energy. Our technology shows great potential for accelerating this clean up effort.
Date:
June 1, 2003
Creator:
Hicks, Robert F. & Herrmann, Hans W.
Object Type:
Report
System:
The UNT Digital Library
An Audit of The Administrative Expenses the National Heritage Insurance Company Charged to the Health and Human Services Commission in Fiscal Year 2002
Report of the Texas State Auditor's Office related to the unallowable expenditures that the National Heritage Insurance Company (NHIC) charged to the Health and Human Services Commission (Commission) in fiscal year 2002. The report details the divisions of the amount that the NHIC should refund.
Date:
June 2003
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on Selected Assistance Programs at the Department of Housing and Community Affairs
Report of the Texas State Auditor's Office related to significant weaknesses in the Department of Housing and Community's (Department) Weatherization Assistance Program (WAP) that allow subgrantees to provide unallowable weatherization services to people who do not qualify for participation in this program.
Date:
June 2003
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on The Board of Architectural Examiners: A Self-Directed, Semi-Independent Agency
Report of the Texas State Auditor's Office related to verifying the accuracy of certain key financial statement balances and the effectiveness of key financial controls at the Board of Architectural Examiners (Board), and verifying the accuracy of certain key Board performance measures and the controls responsible for ensuring that they are accurate.
Date:
June 2003
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
An Audit Report on The Rehabiltation Commission's Vocational Rehabilitation Program
Report of the Texas State Auditor's Office related to analyzing and testing the Rehabilitation Commission's (Commission) financial, contracting, and human resources systems and processes to determine whether financial information is reliable and accurate, procedures used to award and monitor purchased client-service contracts ensure intended services at cost-effective prices, and whether funds for contracted services are spent in compliance with state and federal requirements.
Date:
June 2003
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
Automated Batch Characterization of Icf Shells With Vision-Enabled Optical Microscope System
OAK-B135 Inertial Confinement Fusion (ICF) shells are mesoscale objects with nano-scale dimensional and nano-surface finish requirements. Currently, the shell dimensions are measured by white-light interferometry and an image analysis method. These two methods complement each other and give a rather complete data set on a single shell. The process is, however, labor intensive. They have developed an automation routine to fully characterize a shell in one shot and perform unattended batch measurements. The method is useful to the ICF program both for production screening and for full characterization. It also has potential for Inertial Fusion Energy (IFE) power plant where half a million shells need to be processed daily.
Date:
June 1, 2003
Creator:
Huang, H.; Stephens, R. B.; Hill, D. W.; Lyon, C.; Nikroo, A. & Steinman, D. A.
Object Type:
Article
System:
The UNT Digital Library
Automating Shallow Seismic Imaging
Our primary research focus during the current three-year period of funding has been to develop and demonstrate an automated method of conducting two-dimensional (2D) shallow-seismic surveys with the goal of saving time, effort, and money. Recent tests involving the second generation of the hydraulic geophone-planting device dubbed the ''Autojuggie'' have shown that large numbers of geophones can be placed quickly and automatically and can acquire high-quality data, although not under all conditions (please see the Status and Results of Experiments sections for details). In some easy-access environments, this device is expected to make shallow seismic surveying considerably more efficient and less expensive. Another element of our research plan involved monitoring the cone of depression around a pumping well, with the well serving as a proxy location for fluid-flow at a contaminated DOE site. To try to achieve that goal, we collected data from a well site at which drawdown equilibrium had been reached and at another site during a pumping test. Data analysis disclosed that although we were successful in imaging the water table using seismic reflection techniques (Johnson, 2003), we were not able to explicitly delineate the cone of depression (see Status and Results of Experiments).
Date:
June 1, 2003
Creator:
Steeples, Don W.
Object Type:
Report
System:
The UNT Digital Library
The basic science goal in this project identifies structure/affinity relationships for selected radionuclides and existing sorbents. The task will apply this knowledge to the design and synthesis of new sorbents that will exhibit increased cesium, strontium and actinide removal. The target problem focuses on the treatment of high-level nuclear wastes. The general approach can likewise be applied to non-radioactive separations.
The basic science goal in this project identifies structure/affinity relationships for selected radionuclides and existing sorbents. The task will apply this knowledge to the design and synthesis of new sorbents that will exhibit increased cesium, strontium and actinide removal. The target problem focuses on the treatment of high-level nuclear wastes. The general approach can likewise be applied to non-radioactive separations.
Date:
June 1, 2003
Creator:
Hobbs, D. T.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 81, No. 189, Ed. 1 Sunday, June 1, 2003
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
June 1, 2003
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Bio-Chemo-Opto-Mechanical (BioCOM) Sensors for Real-Time Characterization for D&D Applications (82799)
Basic and applied research is being conducted to develop simple to use chemical and biological sensor chips utilizing bio-chemo-mechanics for real-time, in-situ, detection of technetium, mercury, uranium, copper, and lead for deactivation and decommissioning applications. The bio-chemo-opto-mechanical (Bio-COM) chip involves properly fashioned arrays of micromachined silicon cantilevers containing embedded deformable diffraction gratings functionalized with chemically selective coatings. Adsorption of specific molecules on the cantilever array leads to bending, which changes the diffraction of light from the array. The biochemo- opto-mechanical (BioCOM) chips will be designed to contain an array of pixels, with each pixel containing an array of microcantilever springs in which one surface is derivatized with either an antibody coating or a self-assembled monolayer (SAM) coating for detecting Hg(II), Hg(0), Cu(II), Pb(II), U(VI), or TcO4-. The BioCOM sensor platform also offers the advantage of simultaneous measurement of many analytes using a single chip. The readout mechanism can be a reflected laser beam, producing a diffraction pattern, or in an ideal case the diffraction of daylight resulting in a change of color. In the latter case the proposed sensors would not require any external power, external or on-board electronics, or fluorescent dyes and associated optics, which will keep its fabrication …
Date:
June 1, 2003
Creator:
Thundat, Thomas
Object Type:
Report
System:
The UNT Digital Library
Biodegradation of Chlorinated Solvents: Reactions near DNAPL and Enzyme Function
The anaerobic biodegradation of chlorinated solvents is of great interest both for natural attenuation and for engineered remediation of these hazardous contaminants in groundwater. Compounds to be studied are carbon tetrachloride (CT) and the chlorinated ethenes, tetrachloroethene (PCE), trichloroethene (TCE) cis-1,2-dichloroethene (cDCE), and vinyl chloride (VC). The chlorinated solvents often are present as dense non-aqueous-phase liquids (DNAPLs), which are difficult to remove. Biodegradation of DNAPLs was previously thought not possible because of toxicity, but recent evidence indicates that under the right conditions, biodegradation is possible. Anaerobic biodegradation of DNAPLs is the major subject of this research. The specific objectives of this multi-investigator effort are: (1) Evaluate the potential for chlorinated solvent biodegradation near DNAPLs, (2) Provide a molecular understanding of the biological mechanisms involved, (3) Determine cellular components involved in carbon tetrachloride transformation by Pseudomonas stutzeri strain KC without chloroform formation.
Date:
June 1, 2003
Creator:
McCarty, Perry L.; Spormann, Alfred M. & Criddle, Craig S.
Object Type:
Report
System:
The UNT Digital Library
Biodegradation of PuEDTA and Impacts on Pu Mobility
This project is part of a major project (PI, Dr. Harvey Bolton, Jr. at PNNL) regarding plutonium mobility in the subsurface. Ethylenediaminetetraacetate (EDTA) is a common chelating agent that can increase the mobility of radionuclides and heavy metals in groundwater. Biodegradation of EDTA decreases the enhanced mobility. The overall objective is to understand how microbial degradation affects Plutonium-EDTA transport in the environment, and the specific objective of this component is to understand how microorganisms degrade EDTA. Over the past two years, significant progress has been made to the understanding on how EDTA is degraded by an EDTA-degrading bacterium BNC1. The characterization of EDTA and nitrilotriacetate (NTA) transport into BNC1 cells is summarized here. The uptake is the limiting step in EDTA and NTA degradation. The objectives of near-term research are described. We are making progress as projected in the proposal.
Date:
June 1, 2003
Creator:
Xun, Luying & Bolton, Harvey, Jr.
Object Type:
Report
System:
The UNT Digital Library