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Texas Youth Commission Review of Agency Treatment Effectiveness: 2006
Annual report of the Texas Youth Commission providing an analysis of various programs offered by the agency and statistics related to the impact of these programs on recidivism rates for delinquent youth, with background information and relevant data.
Date:
~2006
Creator:
Texas Youth Commission
System:
The Portal to Texas History
2006 Fee Schedule
Dallas National Bank 2006 fee schedule.
Date:
2006
Creator:
unknown
System:
The UNT Digital Library
Advanced Combustion Systems for Next Generation Gas Turbines
Next generation turbine power plants will require high efficiency gas turbines with higher pressure ratios and turbine inlet temperatures than currently available. These increases in gas turbine cycle conditions will tend to increase NOx emissions. As the desire for higher efficiency drives pressure ratios and turbine inlet temperatures ever higher, gas turbines equipped with both lean premixed combustors and selective catalytic reduction after treatment eventually will be unable to meet the new emission goals of sub-3 ppm NOx. New gas turbine combustors are needed with lower emissions than the current state-of-the-art lean premixed combustors. In this program an advanced combustion system for the next generation of gas turbines is being developed with the goal of reducing combustor NOx emissions by 50% below the state-of-the-art. Dry Low NOx (DLN) technology is the current leader in NOx emission technology, guaranteeing 9 ppm NOx emissions for heavy duty F class gas turbines. This development program is directed at exploring advanced concepts which hold promise for meeting the low emissions targets. The trapped vortex combustor is an advanced concept in combustor design. It has been studied widely for aircraft engine applications because it has demonstrated the ability to maintain a stable flame over a …
Date:
January 1, 2006
Creator:
Haynes, Joel; Janssen, Jonathan; Russell, Craig & Huffman, Marcus
System:
The UNT Digital Library
Advanced Multi-Product Coal Utilization By-Product Processing Plant
Prepared by the United States Government, this report is a descriptive journey of the Advanced Multi-Product Coal Utilization By-Product Processing Plant
Date:
January 1, 2006
Creator:
Groppo, John & Robl, Thomas
System:
The UNT Digital Library
Agent-based control of distributed infrastructure resources.
None
Date:
January 1, 2006
Creator:
Smith, Randall B.; Phillips, Laurence R.; Link, Hamilton E. & Weiland, Laura
System:
The UNT Digital Library
ALEGRA-HEDP validation strategy.
This report presents a initial validation strategy for specific SNL pulsed power program applications of the ALEGRA-HEDP radiation-magnetohydrodynamics computer code. The strategy is written to be (1) broadened and deepened with future evolution of particular specifications given in this version; (2) broadly applicable to computational capabilities other than ALEGRA-HEDP directed at the same pulsed power applications. The content and applicability of the document are highly constrained by the R&D thrust of the SNL pulsed power program. This means that the strategy has significant gaps, indicative of the flexibility required to respond to an ongoing experimental program that is heavily engaged in phenomena discovery.
Date:
January 1, 2006
Creator:
Garasi, Christopher Joseph; Mehlhorn, Thomas Alan & Trucano, Timothy Guy
System:
The UNT Digital Library
Algorithm and simulation development in support of response strategies for contamination events in air and water systems.
Chemical/Biological/Radiological (CBR) contamination events pose a considerable threat to our nation's infrastructure, especially in large internal facilities, external flows, and water distribution systems. Because physical security can only be enforced to a limited degree, deployment of early warning systems is being considered. However to achieve reliable and efficient functionality, several complex questions must be answered: (1) where should sensors be placed, (2) how can sparse sensor information be efficiently used to determine the location of the original intrusion, (3) what are the model and data uncertainties, (4) how should these uncertainties be handled, and (5) how can our algorithms and forward simulations be sufficiently improved to achieve real time performance? This report presents the results of a three year algorithmic and application development to support the identification, mitigation, and risk assessment of CBR contamination events. The main thrust of this investigation was to develop (1) computationally efficient algorithms for strategically placing sensors, (2) identification process of contamination events by using sparse observations, (3) characterization of uncertainty through developing accurate demands forecasts and through investigating uncertain simulation model parameters, (4) risk assessment capabilities, and (5) reduced order modeling methods. The development effort was focused on water distribution systems, large internal facilities, …
Date:
January 1, 2006
Creator:
Waanders, Bart Van Bloemen
System:
The UNT Digital Library
Analysis: Economic Impacts of Wind Applications in Rural Communities; June 18, 2004 -- January 31, 2005
The purpose of this report is to compile completed studies on the economic impact of wind farms in rural communities and then to compare these studies. By summarizing the studies in an Excel spreadsheet, the raw data from a study is easily compared with the data from other studies. In this way, graphs can be made and conclusions drawn. Additionally, the creation of a database in which economic impact studies are summarized allows a greater understanding of the type of information gathered in an economic impact study, the type of information that is most helpful in using these studies to promote wind energy development in rural communities, and the limitations on collecting data for these studies.
Date:
January 1, 2006
Creator:
Pedden, M.
System:
The UNT Digital Library
Analysis of Coconut-Derived Biodiesel and Conventional Diesel Fuel Samples from the Philippines: Task 2 Final Report
NREL tested Philippines coconut biodiesel samples of neat and blended fuels. Results show that the current fuel quality standards were met with very few exceptions. Additional testing is recommended.
Date:
January 1, 2006
Creator:
Alleman, T. L. & McCormick, R. L.
System:
The UNT Digital Library
Analytic and computational micromechanics of clustering and interphase effects in carbon nanotube composites.
Effective elastic properties for carbon nanotube reinforced composites are obtained through a variety of micromechanics techniques. Using the in-plane elastic properties of graphene, the effective properties of carbon nanotubes are calculated utilizing a composite cylinders micromechanics technique as a first step in a two-step process. These effective properties are then used in the self-consistent and Mori-Tanaka methods to obtain effective elastic properties of composites consisting of aligned single or multi-walled carbon nanotubes embedded in a polymer matrix. Effective composite properties from these averaging methods are compared to a direct composite cylinders approach extended from the work of Hashin and Rosen (1964) and Christensen and Lo (1979). Comparisons with finite element simulations are also performed. The effects of an interphase layer between the nanotubes and the polymer matrix as result of functionalization is also investigated using a multi-layer composite cylinders approach. Finally, the modeling of the clustering of nanotubes into bundles due to interatomic forces is accomplished herein using a tessellation method in conjunction with a multi-phase Mori-Tanaka technique. In addition to aligned nanotube composites, modeling of the effective elastic properties of randomly dispersed nanotubes into a matrix is performed using the Mori-Tanaka method, and comparisons with experimental data are made. …
Date:
January 1, 2006
Creator:
Seidel, Gary D.; Hammerand, Daniel Carl & Lagoudas, Dimitris C. (Texas A&M University, College Station, TX)
System:
The UNT Digital Library
Applicability of Related Data, Algorithms, and Models to the Simulation of Ground-Coupled Residential Hot Water Piping in California
Residential water heating is an important consideration in California?s building energy efficiency standard. Explicit treatment of ground-coupled hot water piping is one of several planned improvements to the standard. The properties of water, piping, insulation, backfill materials, concrete slabs, and soil, their interactions, and their variations with temperature and over time are important considerations in the required supporting analysis. Heat transfer algorithms and models devised for generalized, hot water distribution system, ground-source heat pump and ground heat exchanger, nuclear waste repository, buried oil pipeline, and underground electricity transmission cable applications can be adapted to the simulation of under-slab water piping. A numerical model that permits detailed examination of and broad variations in many inputs while employing a technique to conserve computer run time is recommended.
Date:
January 1, 2006
Creator:
Warner, J. L. & Lutz, J. D.
System:
The UNT Digital Library
Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration
The Nature Conservancy is participating in a Cooperative Agreement with the Department of Energy (DOE) National Energy Technology Laboratory (NETL) to explore the compatibility of carbon sequestration in terrestrial ecosystems and the conservation of biodiversity. The title of the research project is ''Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration''. The objectives of the project are to: (1) improve carbon offset estimates produced in both the planning and implementation phases of projects; (2) build valid and standardized approaches to estimate project carbon benefits at a reasonable cost; and (3) lay the groundwork for implementing cost-effective projects, providing new testing ground for biodiversity protection and restoration projects that store additional atmospheric carbon. This Technical Progress Report discusses preliminary results of the six specific tasks that The Nature Conservancy is undertaking to answer research needs while facilitating the development of real projects with measurable greenhouse gas reductions. The research described in this report occurred between April 1st , 2005 and June 30th, 2005. The specific tasks discussed include: Task 1: carbon inventory advancements; Task 2: emerging technologies for remote sensing of terrestrial carbon; Task 3: baseline method development; Task 4: third-party technical advisory panel meetings; Task 5: new …
Date:
January 1, 2006
Creator:
Stanley, Bill; Gonzalez, Patrick; Brown, Sandra; Henman, Jenny; Kant, Zoe; Murdock, Sarah Woodhouse et al.
System:
The UNT Digital Library
Application of Hydrogen Assisted Lean Operation to Natural Gas-Fueled Reciprocating Engines (HALO)
Two key challenges facing Natural Gas Engines used for cogeneration purposes are spark plug life and high NOx emissions. Using Hydrogen Assisted Lean Operation (HALO), these two keys issues are simultaneously addressed. HALO operation, as demonstrated in this project, allows stable engine operation to be achieved at ultra-lean (relative air/fuel ratios of 2) conditions, which virtually eliminates NOx production. NOx values of 10 ppm (0.07 g/bhp-hr NO) for 8% (LHV H2/LHV CH4) supplementation at an exhaust O2 level of 10% were demonstrated, which is a 98% NOx emissions reduction compared to the leanest unsupplemented operating condition. Spark ignition energy reduction (which will increase ignition system life) was carried out at an oxygen level of 9%, leading to a NOx emission level of 28 ppm (0.13 g/bhp-hr NO). The spark ignition energy reduction testing found that spark energy could be reduced 22% (from 151 mJ supplied to the coil) with 13% (LHV H2/LHV CH4) hydrogen supplementation, and even further reduced 27% with 17% hydrogen supplementation, with no reportable effect on NOx emissions for these conditions and with stable engine torque output. Another important result is that the combustion duration was shown to be only a function of hydrogen supplementation, not a …
Date:
January 1, 2006
Creator:
Smutzer, Chad
System:
The UNT Digital Library
Assessment of the potential for karst in the Rustler Formation at the WIPP site.
This report is an independent assessment of the potential for karst dissolution in evaporitic strata of the Rustler Formation at the Waste Isolation Pilot Plant (WIPP) site. Review of the available data suggests that the Rustler strata thicken and thin across the area in depositional patterns related to lateral variations in sedimentary accommodation space and normal facies changes. Most of the evidence that has been offered for the presence of karst in the subsurface has been used out of context, and the different pieces are not mutually supporting. Outside of Nash Draw, definitive evidence for the development of karst in the Rustler Formation near the WIPP site is limited to the horizon of the Magenta Member in drillhole WIPP-33. Most of the other evidence cited by the proponents of karst is more easily interpreted as primary sedimentary structures and the localized dissolution of evaporitic strata adjacent to the Magenta and Culebra water-bearing units. Some of the cited evidence is invalid, an inherited baggage from studies made prior to the widespread knowledge of modern evaporite depositional environments and prior to the existence of definitive exposures of the Rustler Formation in the WIPP shafts. Some of the evidence is spurious, has been …
Date:
January 1, 2006
Creator:
Lorenz, John Clay
System:
The UNT Digital Library
An Audit Report on the Health and Human Services Commission's Consolidation of Administrative Support Services
Report of the Texas State Auditor's Office related to examining the Health and Human Services Commission's (Commission) consolidation efforts centralizing its administrative support functions and to determine whether the Commission's efforts improved the efficiency and effectiveness of its administrative support services' operations as intended by House Bill 2292, specifically reviewing the implementation of the outsourced human rights management contract, the Commission's consolidation of financial services processes, and the consolidation of information technology services and automated systems.
Date:
January 2006
Creator:
Texas. Office of the State Auditor.
System:
The Portal to Texas History
An Audit Report on the Kinney County Groundwater Conservation District
Report of the Texas State Auditor's Office related to determining whether the Kinney County Groundwater Conservation District (Distric) has accounting procedures and controls that ensure accurate, timely, and complete financial information is available for making management decisions, ensure it is able to meet its financial obligations, and protects against violations, abuse, and fraud; whether the District achieves its management goals and objectives as outlined in its management plan; and whether the Department complies with applicable statutes, rules, and regulations.
Date:
January 2006
Creator:
Texas. Office of the State Auditor.
System:
The Portal to Texas History
A Bayesian method for characterizing distributed micro-releases: II. inference under model uncertainty with short time-series data.
Terrorist attacks using an aerosolized pathogen preparation have gained credibility as a national security concern after the anthrax attacks of 2001. The ability to characterize such attacks, i.e., to estimate the number of people infected, the time of infection, and the average dose received, is important when planning a medical response. We address this question of characterization by formulating a Bayesian inverse problem predicated on a short time-series of diagnosed patients exhibiting symptoms. To be of relevance to response planning, we limit ourselves to 3-5 days of data. In tests performed with anthrax as the pathogen, we find that these data are usually sufficient, especially if the model of the outbreak used in the inverse problem is an accurate one. In some cases the scarcity of data may initially support outbreak characterizations at odds with the true one, but with sufficient data the correct inferences are recovered; in other words, the inverse problem posed and its solution methodology are consistent. We also explore the effect of model error-situations for which the model used in the inverse problem is only a partially accurate representation of the outbreak; here, the model predictions and the observations differ by more than a random noise. …
Date:
January 1, 2006
Creator:
Marzouk, Youssef; Fast P. (Lawrence Livermore National Laboratory, Livermore, CA); Kraus, M. (Peterson AFB, CO) & Ray, J. P.
System:
The UNT Digital Library
BEC :a virtual shared memory parallel programming environment.
None
Date:
January 1, 2006
Creator:
Goudy, Susan Phelps; Brown, Jonathan Leighton; Wen, Zhaofang.; Heroux, Michael Allen & Huang, Shan Shan (Georgia Institute of Technology, Atlanta, GA)
System:
The UNT Digital Library
Benchmark the Fuel Cost of Steam Generation
This revised ITP tip sheet on benchmarking the fuel cost of steam provides how-to advice for improving industrial steam systems using low-cost, proven practices and technologies.
Date:
January 1, 2006
Creator:
unknown
System:
The UNT Digital Library
Big Sky Carbon Sequestration Partnership--Phase I
The Big Sky Carbon Sequestration Partnership, led by Montana State University, is comprised of research institutions, public entities and private sectors organizations, and the Confederated Salish and Kootenai Tribes and the Nez Perce Tribe. Efforts under this Partnership in Phase I are organized into four areas: (1) Evaluation of sources and carbon sequestration sinks that will be used to determine the location of pilot demonstrations in Phase II; (2) Development of GIS-based reporting framework that links with national networks; (3) Design of an integrated suite of monitoring, measuring, and verification technologies, market-based opportunities for carbon management, and an economic/risk assessment framework (referred to below as the Advanced Concepts component of the Phase I efforts); and (4) Initiation of a comprehensive education and outreach program. As a result of the Phase I activities, the groundwork is in place to provide an assessment of storage capabilities for CO{sub 2} utilizing the resources found in the Partnership region (both geological and terrestrial sinks), that complements the ongoing DOE research agenda in Carbon Sequestration. The geology of the Big Sky Carbon Sequestration Partnership Region is favorable for the potential sequestration of enormous volume of CO{sub 2}. The United States Geological Survey (USGS 1995) identified …
Date:
January 1, 2006
Creator:
Capalbo, Susan M.
System:
The UNT Digital Library
Bringing the SciBar Detector to the Booster Neutrino Beam
This document presents the physics case for bringing SciBar, the fully active, finely segmented tracking detector at KEK, to the FNAL Booster Neutrino Beam (BNB) line. This unique opportunity arose with the termination of K2K beam operations in 2005. At that time, the SciBar detector became available for use in other neutrino beam lines, including the BNB, which has been providing neutrinos to the MiniBooNE experiment since late 2002. The physics that can be done with SciBar/BNB can be put into three categories, each involving several measurements. First are neutrino cross section measurements which are interesting in their own right, including analyses of multi-particle final states, with unprecedented statistics. Second are measurements of processes that represent the signal and primary background channels for the upcoming T2K experiment. Third are measurements which improve existing or planned MiniBooNE analyses and the understanding of the BNB, both in neutrino and antineutrino mode. For each of these proposed measurements, the SciBar/BNB combination presents a unique opportunity or will significantly improve upon current or near-future experiments for several reasons. First, the fine granularity of SciBar allows detailed reconstruction of final states not possible with the MiniBooNE detector. Additionally, the BNB neutrino energy spectrum is a …
Date:
January 1, 2006
Creator:
Aguilar-Arevalo, A. A.; Alcaraz, J.; Andringa, S.; Brice, S. J.; Brown, B. C.; Bugel, L. et al.
System:
The UNT Digital Library
Building America Residential System Research Results: Achieving 30% Whole House Energy Savings Level in the Hot-Dry and Mixed-Dry Climates
The Building America program conducts the system research required to reduce risks associated with the design and construction of homes that use an average of 30% to 90% less total energy for all residential energy uses than the Building America Research Benchmark, including research on homes that will use zero net energy on annual basis. To measure the program's progress, annual research milestones have been established for five major climate regions in the United States. The system research activities required to reach each milestone take from 3 to 5 years to complete and include research in individual test houses, studies in pre-production prototypes, and research studies with lead builders that provide early examples that the specified energy savings level can be successfully achieved on a production basis. This report summarizes research results for the 30% energy savings level and demonstrates that lead builders can successfully provide 30% homes in the Hot-Dry/Mixed-Dry Climate Region on a cost neutral basis.
Date:
January 1, 2006
Creator:
Building Industry Research Alliance
System:
The UNT Digital Library
Calculation of acceptance and efficiency for neutral D mesons decaying to electron-positrons and rates of pions and kaons faking electron signals at CDF
In the 19th century, the fundamental units of matter were believed to be atoms. Further experiments in the early 20th century demonstrated that protons and neutrons are just two examples of a class of particles called hadrons, and that hadrons are composed of quarks bound together by gluons. This has evolved to today's Standard Model of particle physics (SM) which encapsulates our knowledge of elementary particles and the fundamental forces between them.
Date:
January 1, 2006
Creator:
Dhaliwal, Daljit K. & U., /Wayne State
System:
The UNT Digital Library
Carbon Dioxide Capture from Flue Gas Using Dry, Regenerable Sorbents
This report describes research conducted between October 1, 2005, and December 31, 2005, on the use of dry regenerable sorbents for removal of carbon dioxide (CO{sub 2}) from flue gas from coal combustion. A field test was conducted to examine the extent to which RTI's supported sorbent can be regenerated in a heated, hollow screw conveyor. This field test was conducted at the facilities of a screw conveyor manufacturer. The sorbent was essentially completely regenerated during this test, as confirmed by thermal desorption and mass spectroscopy analysis of the regenerated sorbent. Little or no sorbent attrition was observed during 24 passes through the heated screw conveyor system. Three downflow contactor absorption tests were conducted using calcined sodium bicarbonate as the absorbent. Maximum carbon dioxide removals of 57 and 91% from simulated flue gas were observed at near ambient temperatures with water-saturated gas. These tests demonstrated that calcined sodium carbonate is not as effective at removing CO{sub 2} as are supported sorbents containing 10 to 15% sodium carbonate. Delivery of the hollow screw conveyor for the laboratory-scale sorbent regeneration system was delayed; however, construction of other components of this system continued during the quarter.
Date:
January 1, 2006
Creator:
Green, David A.; Nelson, Thomas O.; Turk, Brian S.; Box, Paul D.; Weber, Andreas & Gupta, Raghubir P.
System:
The UNT Digital Library