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Net Zero Energy Installations
A net zero energy installation (NZEI) is one that produces as much energy from on-site renewable sources as it consumes. NZEI assessment provides a systematic approach to energy projects.
Date:
May 1, 2012
Creator:
Booth, S.
Object Type:
Presentation
System:
The UNT Digital Library
Lower Columbia River and Estuary Ecosystem Restoration Program Reference Site Study: 2011 Restoration Analysis - FINAL REPORT
The Reference Site (RS) study is part of the research, monitoring, and evaluation (RME) effort developed by the Action Agencies (Bonneville Power Administration [BPA], U.S. Army Corps of Engineers, Portland District [USACE], and U.S. Bureau of Reclamation) in response to Federal Columbia River Power System (FCRPS) Biological Opinions (BiOp). While the RS study was initiated in 2007, data have been collected at relatively undisturbed reference wetland sites in the LCRE by PNNL and collaborators since 2005. These data on habitat structural metrics were previously summarized to provide baseline characterization of 51 wetlands throughout the estuarine and tidal freshwater portions of the 235-km LCRE; however, further analysis of these data has been limited. Therefore, in 2011, we conducted additional analyses of existing field data previously collected for the Columbia Estuary Ecosystem Restoration Program (CEERP) - including data collected by PNNL and others - to help inform the multi-agency restoration planning and ecosystem management work underway in the LCRE.
Date:
May 31, 2012
Creator:
Borde, Amy B.; Cullinan, Valerie I.; Diefenderfer, Heida L.; Thom, Ronald M.; Kaufmann, Ronald M.; Zimmerman, Shon A. et al.
Object Type:
Report
System:
The UNT Digital Library
Knowledge Discovery of Nanotube Mechanical Properties With an Informatics-Molecular Dynamics Approach
Carbon nanotubes (CNT) have unparalleled mechanical properties, spanning several orders of magnitude over both length and time scales. Computational and experimental results vary greatly, partly due to the multitude of variables. Coupling physics-based molecular dynamics (MD) with informatics methodologies is proposed to navigate the large problem space. The adaptive intermolecular reactive empirical bond order (AIREBO) is used to model short range, long range and torsional interactions. A powerful approach that has not been used to study CNT mechanical properties is the derivation of descriptors and quantitative structure property relationships (QSPRs). For the study of defected single-walled CNTs (SWCNT), two descriptors were identified as critical: the density of non-sp2 hybridized carbons and the density of methyl groups functionalizing the surface. It is believed that both of these descriptors can be experimentally measured, paving the way for closed-loop computational-experimental development. Informatics can facilitate discovery of hidden knowledge. Further evaluation of the critical descriptors selected for Poisson’s ratio lead to the discovery that Poisson’s ratio has strain-varying nonlinear elastic behavior. CNT effectiveness in composites is based both on intrinsic mechanical properties and interfacial load transfer. In double-walled CNTs, inter-wall bonds are surface defects that decrease the intrinsic properties but also improve load transfer. …
Date:
May 2012
Creator:
Borders, Tammie L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Using a Research Simulator for Validating Control Room Modernization Concepts
The Light Water Reactor Sustainability Program is a research, development, and deployment program sponsored by the United States Department of Energy. The program is operated in close collaboration with industry research and development programs to provide the technical foundations for licensing and managing the long-term, safe, and economical operation of nuclear power plants that are currently in operation. Advanced instrumentation and control (I&C) technologies are needed to support the continued safe and reliable production of power from nuclear energy systems during sustained periods of operation up to and beyond their expected licensed lifetime. This requires that new capabilities to achieve process control be developed and eventually implemented in existing nuclear control rooms. It also requires that approaches be developed and proven to achieve sustainability of I&C systems throughout the period of extended operation. Idaho National Laboratory (INL) is working closely with nuclear utilities to develop technologies and solutions to help ensure the safe life extension of current reactors. One of the main areas of focus is control room modernization. Current analog control rooms are growing obsolete, and it is difficult for utilities to maintain them. Using its reconfigurable control room simulator adapted from a training simulator, INL serves as a …
Date:
May 1, 2012
Creator:
Boring, Ronald L.; Agarwal, Vivek; Persensky, Julius J. & Joe, Jeffrey C.
Object Type:
Article
System:
The UNT Digital Library
Simulation and Experiment of Thermal Fatigue in the CPV Die Attach: Preprint
FEM simulation and accelerated thermal cycling have been performed for the CPV die attach. Trends in fatigue damage accumulation and equivalent test time are explored and found to be most sensitive to temperature ramp rate. Die attach crack growth is measured through cycling and found to be in excellent agreement with simulations of the inelastic strain energy accumulated. Simulations of an entire year of weather data provides for the relative ranking of fatigue damage between four cites as well as their equivalent accelerated test time.
Date:
May 1, 2012
Creator:
Bosco, N.; Silverman, T. & Kurtz, S.
Object Type:
Article
System:
The UNT Digital Library
After the Planes
The dissertation consists of a critical preface and a novel. The preface analyzes what it terms “polyvocal” novels, or novels employing multiple points of view, as well as “layered storytelling,” or layers of textuality within novels, such as stories within stories. Specifically, the first part of the preface discusses polyvocality in twenty-first century American novels, while the second part explores layered storytelling in novels responding to World War II or the terrorist attacks of 9/11. The preface analyzes the advantages and difficulties connected to these techniques, as well as their aptitude for reflecting the fractured, disconnected, and subjective nature of the narratives we construct to interpret traumatic experiences. It also acknowledges the necessity—despite its inherent limitations—of using language to engage with this fragmentation and cope with its challenges. The preface uses numerous novels as examples and case studies, and it also explores these concepts and techniques in relation to the process of writing the novel After the Planes. After the Planes depicts multiple generations of a family who utilize storytelling as a means to work through grief, hurt, misunderstanding, and loss—whether from interpersonal conflicts or from war. Against her father’s wishes, a young woman moves in with her nearly-unknown grandfather, …
Date:
May 2012
Creator:
Boswell, Timothy
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Scouting, Volume 100, Number 3, May-June 2012
Monthly publication of the Boy Scouts of America, written for Boy Scout leaders, officials, and others interested in the work of the Scouts. It includes articles about events and activities, updates from the national headquarters, topical columns and essays, and news from various chapters nationwide. A table of contents begins on page 1.
Date:
May 2012
Creator:
Boy Scouts of America
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Community Development Block Grants: Funding Issues in the 112th Congress and Recent Funding History
This report discusses funding Issues in the 112th Congress and Recent Funding History The Administration's FY2012 budget proposes to: (1) increase funding for CDBG formula grants by 10.5% from $3.303 billion appropriated in FY2010 to $3.691 billion; (2) eliminate funding for the Neighborhood Initiative and Economic Development Initiative programs; (3) eliminate funding for Section 107 activities; (4) transfer its Sustainable Communities Initiative to a new stand-alone account; and (5) convert Section 108 loan guarantees to a fee-based program.
Date:
May 1, 2012
Creator:
Boyd, Eugene
Object Type:
Report
System:
The UNT Digital Library
Exploiting Universality in Atoms with Large Scattering Lengths
The focus of this research project was atoms with scattering lengths that are large compared to the range of their interactions and which therefore exhibit universal behavior at sufficiently low energies. Recent dramatic advances in cooling atoms and in manipulating their scattering lengths have made this phenomenon of practical importance for controlling ultracold atoms and molecules. This research project was aimed at developing a systematically improvable method for calculating few-body observables for atoms with large scattering lengths starting from the universal results as a first approximation. Significant progress towards this goal was made during the five years of the project.
Date:
May 31, 2012
Creator:
Braaten, Eric
Object Type:
Report
System:
The UNT Digital Library
NEAMS update quarterly report for January - March 2012.
Quarterly highlights are: (1) The integration of Denovo and AMP was demonstrated in an AMP simulation of the thermo-mechanics of a complete fuel assembly; (2) Bison was enhanced with a mechanistic fuel cracking model; (3) Mechanistic algorithms were incorporated into various lower-length-scale models to represent fission gases and dislocations in UO2 fuels; (4) Marmot was improved to allow faster testing of mesoscale models using larger problem domains; (5) Component models of reactor piping were developed for use in Relap-7; (6) The mesh generator of Proteus was updated to accept a mesh specification from Moose and equations were formulated for the intermediate-fidelity Proteus-2D1D module; (7) A new pressure solver was implemented in Nek5000 and demonstrated to work 2.5 times faster than the previous solver; (8) Work continued on volume-holdup models for two fuel reprocessing operations: voloxidation and dissolution; (9) Progress was made on a pyroprocessing model and the characterization of pyroprocessing emission signatures; (10) A new 1D groundwater waste transport code was delivered to the used fuel disposition (UFD) campaign; (11) Efforts on waste form modeling included empirical simulation of sodium-borosilicate glass compositions; (12) The Waste team developed three prototypes for modeling hydride reorientation in fuel cladding during very long-term fuel …
Date:
May 10, 2012
Creator:
Bradley, K. S.; Hayes, S.; Pointer, D.; Summers, R.; Sadasivan, P.; Sun, X. et al.
Object Type:
Report
System:
The UNT Digital Library
Tactile Media: Factors Affecting the Adoption of Touchscreen Smartphones Among Consumers with Vision Loss
Touchscreen technology is on the rise as the new standard in smartphone design. But, the usability of touchscreen is hindered for consumers that lack the physical ability to navigate such devices. Two focus groups were conducted in order to identify specific uses and gratifications that people with visual impairments had when using mobile phones. Additional questions were presented to the participants to determine if touchscreen technology limited access to communication and entertainment. The responses revealed an upward trend in touchscreen smartphone adoption among the participants. These users chose to adopt touchscreen smartphones that had built-in and downloadable assistive features which contributed to user-friendly designs.
Date:
May 2012
Creator:
Bradley, Sapora L.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Oklahoma Firefighter (Oklahoma City, Okla.), Vol. 29, No. 4, Ed. 1 Tuesday, May 1, 2012
Monthly periodical from Oklahoma City, Oklahoma published by and for members of the Oklahoma State Firefighters Association that includes news and information along with advertising.
Date:
May 1, 2012
Creator:
Bradshaw, Herb
Object Type:
Journal/Magazine/Newsletter
System:
The Gateway to Oklahoma History
Oral History Interview with Hugh Donald Brandt, May 4, 2012
The National Museum of the Pacific War presents an oral interview with Hugh Donald Brandt. Brandt dropped out of high school, went to work for a few years, then joined the Marine Corps in February, 1942. When he finished boot camp, Brandt opted for Field Music School. After finishing that, he was stationed up at Kodiak Island, Alaska, at the submarine base as a bugler. Every other day, Brandt served as a bugler as there were two stationed on the base. On days when he did not sound the bugle calls, he worked as a censor in the base post office. He finally got a 30-day furlough during which he returned home and got married. After that, he was assigned to Camp Pendleton. Brandt continues with anecdotes about his time in the service. He shares stories about censoring letters and playing the bugle.
Date:
May 4, 2012
Creator:
Brandt, Hugh Donald
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Hugh Donald Brandt, May 4, 2012
The National Museum of the Pacific War presents an oral interview with Hugh Donald Brandt. Brandt dropped out of high school, went to work for a few years, then joined the Marine Corps in February, 1942. When he finished boot camp, Brandt opted for Field Music School. After finishing that, he was stationed up at Kodiak Island, Alaska, at the submarine base as a bugler. Every other day, Brandt served as a bugler as there were two stationed on the base. On days when he did not sound the bugle calls, he worked as a censor in the base post office. He finally got a 30-day furlough during which he returned home and got married. After that, he was assigned to Camp Pendleton. Brandt continues with anecdotes about his time in the service. He shares stories about censoring letters and playing the bugle.
Date:
May 4, 2012
Creator:
Brandt, Hugh Donald
Object Type:
Text
System:
The Portal to Texas History
Early College High School: Hispanic Students’ Perceptions and Experiences From a Texas Campus
Early college high school (ECHS) is a dual enrollment program that allows high school students to earn college credits while in high school. ECHS was developed with the intention of attracting students to pursue a 4-year college degree, especially students who might not attend college without intervention. The program targets students from low-income families, students who have low academic achievement, and students from minority groups including Hispanics, African Americans, and Native Americans. The purpose of this study was to explore the perceptions and opinions of Hispanic students about their experiences in an ECHS, and to better understand how their ECHS experiences affected motivation to engage in academics. The expectancy theory and college-going culture provided the theoretical framework for this case study. Semi-structured interviews captured the experiences of the participants. The study focused on 10 Hispanic students, 5 seniors and 5 juniors, enrolled at an ECHS located on a community college campus in Texas. The study found that students with higher motivation to work at high school and college courses had several reasons for choosing to attend ECHS. The reasons included a chance to earn a high school diploma and associate’s degree simultaneously, free college tuition, and an accelerated program to …
Date:
May 2012
Creator:
Brenner, Rose K.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
CRYSTALLINE CERAMIC WASTE FORMS: REFERENCE FORMULATION REPORT
The research conducted in this work package is aimed at taking advantage of the long term thermodynamic stability of crystalline ceramics to create more durable waste forms (as compared to high level waste glass) in order to reduce the reliance on engineered and natural barrier systems. Durable ceramic waste forms that incorporate a wide range of radionuclides have the potential to broaden the available disposal options and to lower the storage and disposal costs associated with advanced fuel cycles. Assemblages of several titanate phases have been successfully demonstrated to incorporate radioactive waste elements, and the multiphase nature of these materials allows them to accommodate variation in the waste composition. Recent work has shown that they can be successfully produced from a melting and crystallization process. The objective of this report is to explain the design of ceramic host systems culminating in a reference ceramic formulation for use in subsequent studies on process optimization and melt property data assessment in support of FY13 melter demonstration testing. The waste stream used as the basis for the development and testing is a combination of the projected Cs/Sr separated stream, the Trivalent Actinide - Lanthanide Separation by Phosphorous reagent Extraction from Aqueous Komplexes (TALSPEAK) …
Date:
May 15, 2012
Creator:
Brinkman, K.; Fox, K. & Marra, J.
Object Type:
Report
System:
The UNT Digital Library
Exotic Effects at the Charm Threshold and Other Novel Physics Topics at JLab-12 GeV
I briefly survey a number of novel hadron physics topics which can be investigated with the 12 GeV upgrade at J-Lab. The topics include new the formation of exotic heavy quark resonances accessible above the charm threshold, intrinsic charm and strangeness phenomena, the exclusive Sivers effect, hidden-color Fock states of nuclei, local two-photon interactions in deeply virtual Compton scattering, and non-universal antishadowing.
Date:
May 3, 2012
Creator:
Brodsky, Stanley J.
Object Type:
Article
System:
The UNT Digital Library
Application of the Principle of Maximum Conformality to the Top-Quark Forward-Backward Asymmetry at the Tevatron
The renormalization scale uncertainty can be eliminated by the Principle of Maximum Conformality (PMC) in a systematic scheme-independent way. Applying the PMC for the t{bar t}-pair hadroproduction at the NNLO level, we have found that the total cross-sections {sigma}{sub t{bar t}} at both the Tevatron and LHC remain almost unchanged when taking very disparate initial scales {mu}{sub R}{sup init} equal to m{sub t}, 10 m{sub t}, 20 m{sub t} and {radical}s, which is consistent with renormalization group invariance. As an important new application, we apply PMC scale-setting to study the top-quark forward-backward asymmetry. We observe that the more convergent perturbative series after PMC scale-setting leads to a more accurate top-quark forward-backward asymmetry. The resulting PMC prediction on the asymmetry is also free from the initial renormalization scale-dependence. Because the NLO PMC scale has a dip behavior for the (q{bar q})-channel at small subprocess collision energies, the importance of this channel to the asymmetry is increased. We observe that the asymmetries A{sub FB}{sup t{bar t}} and A{sub FB}{sup p{bar p}} at the Tevatron will be increased by 42% in comparison to the previous estimates obtained by using conventional scale-setting; i.e. we obtain A{sub FB}{sup t{bar t}PMC} {approx_equal} 12.5% and A{sub FB}{sup …
Date:
May 14, 2012
Creator:
Brodsky, Stanley J. & Wu, Xing-Gang
Object Type:
Article
System:
The UNT Digital Library
Improved Superconducting Wire for Wind Generators
Advanced Research Projects Agency-Energy project sheet summarizing general information about the Rare Earth Alternatives in Critical Technologies (REACT) program including critical needs, innovation and advantages, impacts, and contact information. This sheet discusses a new superconducting wire as part of the "Superconducting Wires for Direct-Drive Wind Generators" project.
Date:
May 25, 2012
Creator:
Brookhaven National Laboratory
Object Type:
Text
System:
The UNT Digital Library
Design Concept for nu-STORM: An Initial Very Low-Energy Neutrino Factory
We present a design concept for a {nu} source from a STORage ring for Muons ({nu}STORM). In this initial design a high-intensity proton beam produces {approx}5 GeV pions that provide muons that are captured using 'stochastic injection' within a 3.6 GeV racetrack storage ring. In 'stochastic injection', the {approx}5 GeV pion beam is transported from the target into the storage ring, dispersion-matched into a long straight section. (Circulating and injection orbits are separated by momentum.) Decays within that straight section provide muons that are within the {approx}3.6 GeV/c ring momentum acceptance and are stored for the muon lifetime of {approx}1000 turns. Muon (and pion) decays in the long straight sections provide neutrino beams of precisely known flux and flavor that can be used for precision measurements of electron and muon neutrino interactions, and neutrino oscillations or disappearance at L/E = {approx}1m/MeV. The facility is described, and variations are discussed.
Date:
May 1, 2012
Creator:
Bross, A.; Geer, S.; Liu, A.; Neuffer, D.; Popovic, M.; /Fermilab et al.
Object Type:
Article
System:
The UNT Digital Library
Development of chemiresponsive sensors for detection of common homemade explosives.
Field-structured chemiresistors (FSCRs) are polymer based sensors that exhibit a resistance change when exposed to an analyte of interest. The amount of resistance change depends on the polymer-analyte affinity. The affinity can be manipulated by modifying the polymer within the FSCRs. In this paper, we investigate the ability of chemically modified FSCRs to sense hydrogen peroxide vapor. Five chemical species were chosen based on their hydrophobicity or reactivity with hydrogen peroxide. Of the five investigated, FSCRs modified with allyl methyl sulfide exhibited a significant response to hydrogen peroxide vapor. Additionally, these same FSCRs were evaluated against a common interferrant in hydrogen peroxide detection, water vapor. For the conditions investigated, the FSCRs modified with allyl methyl sulfide were able to successfully distinguish between water vapor and hydrogen peroxide vapor. A portion of the results presented here will be submitted to the Sensors and Actuators journal.
Date:
May 1, 2012
Creator:
Brotherton, Christopher M. & Wheeler, David Roger
Object Type:
Report
System:
The UNT Digital Library
Cal Poly student report and presentation on the High Temperature Test Unit (HTTU) for the LLNL Ceramic HEPA Filter Program, "High Temperature HEPA Filter Test Unit Final Design Report" and "High Temperature HEPA Filter Test Unit"
None
Date:
May 18, 2012
Creator:
Brown, G; Dong, G & Marino, J
Object Type:
Article
System:
The UNT Digital Library
FEMA's Community Disaster Loan Program: History, Analysis, and Issues for Congress
This report compares and analyzes three different categories of loans issued in different time periods in the program's history: "traditional" loans issued between 1974 and 2005, in 2007, and between 2009 and 2011 (TCDLs); "special" (SCDLs) loans issued in 2005-2006 following Hurricanes Katrina and Rita; and loans issued under unique provisions in 2008 (2008 CDLs).
Date:
May 10, 2012
Creator:
Brown, Jared T.
Object Type:
Report
System:
The UNT Digital Library
The Canadian Record (Canadian, Tex.), Vol. 122, No. 18, Ed. 1 Thursday, May 3, 2012
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
May 3, 2012
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History