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20% Wind Energy by 2030: Increasing Wind Energy's Contribution to U.S. Electricity Supply; Executive Summary (Revised)
This document is a 21-page summary of the 200+ page analysis that explores one clearly defined scenario for providing 20% of our nation's electricity demand with wind energy by 2030 and contrasts it to a scenario of no new U.S. wind power capacity.
Date:
December 1, 2008
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
219-S CORROSION STUDY
A minor leak was detected in a drain line for Hood 2B located in the 222-S Laboratory. The line transfers radioactive waste, spent analytical standards, and chemicals used in various analytical procedures. Details are in the report provided by David Comstock, 2B NDE June 2008, work package LAB-WO-07-2012. Including the noted leak, the 222-S Laboratory has experienced two drain line leaks in approximately the last two years of operation. As a consequence, CH2M HILL Hanford Group, Inc. (CH2M HILL) requested the support of ChemMet, Ltd., PC (ChemMet) at the Hanford Site 222-S Laboratory. The corrosion expertise from ChemMet was required prior to preparation of a compatibility assessment for the 222-S Laboratory waste transfer system to assure the expected life of the piping system is extended as much as practicable. The system includes piping within the 222-S Laboratory and the 219-S Waste Storage and Transfer Facility and Operations Process. The ChemMet support was required for an assessment by 222-S staff to analyze what improvements to operational activities may be implemented to extend the tank/piping system life. This assessment will include a summary of the various material types, age, and locations throughout the facility. The assessment will also include a discussion of …
Date:
December 1, 2008
Creator:
Divine, James R. & Parsons, G. L.
Object Type:
Report
System:
The UNT Digital Library
2006/07 Field Testing of Cellulose Fiber Insulation Enhanced with Phase Change Material
Most recent improvements in building envelope technologies suggest that in the near future, residences will be routinely constructed to operate with very low heating and cooling loads. In that light, the application of novel building materials containing active thermal components (e.g., phase change materials [PCMs,] sub-venting, radiant barriers, and integrated hydronic systems) is like a final step in achieving relatively significant heating and cooling energy savings from technological improvements in the building envelope. It is expected that optimized building envelope designs using PCMs for energy storage can effectively bring notable savings in energy consumption and reductions in peak hour power loads. During 2006/07, a research team at Oak Ridge National Laboratory (ORNL) performed a series of laboratory and field tests of several wall and roof assemblies using PCM-enhanced cellulose insulation. This report summarizes the test results from the perspective of energy performance. The ORNL team is working on both inorganic and organic PCMs; this report discusses only paraffinic PCMs. A limited economical analysis also is presented. PCMs have been tested as a thermal mass component in buildings for at least 40 years. Most of the research studies found that PCMs enhanced building energy performance. In the case of the application …
Date:
December 1, 2008
Creator:
Kosny, Jan; Yarbrough, David W; Miller, William A; Petrie, Thomas; Childs, Phillip W & Syed, Azam M
Object Type:
Report
System:
The UNT Digital Library
2006 National Ambient Air Quality Standard for Fine Particulate Matter (PM25): Designating Nonattainment Areas)
This report summarizes and describes the EPA's (Environmental Protection Agency) final revisions to the NAAQS (National Ambient Air Quality Standards). The summary also explores how the revisions are contentious in certain areas that may not be meeting those standards which materializes as congressional oversight.
Date:
December 1, 2008
Creator:
Esworthy, Robert
Object Type:
Report
System:
The UNT Digital Library
4th Generation ECR Ion Sources
The concepts and technical challenges related to developing a 4th generation ECR ion source with an RF frequency greater than 40 GHz and magnetic confinement fields greater than twice Becr will be explored in this paper. Based on the semi-empirical frequency scaling of ECR plasma density with the square of operating frequency, there should be significant gains in performance over current 3rd generation ECR ion sources, which operate at RF frequencies between 20 and 30 GHz. While the 3rd generation ECR ion sources use NbTi superconducting solenoid and sextupole coils, the new sources will need to use different superconducting materials such as Nb3Sn to reach the required magnetic confinement, which scales linearly with RF frequency. Additional technical challenges include increased bremsstrahlung production, which may increase faster than the plasma density, bremsstrahlung heating of the cold mass and the availability of high power continuous wave microwave sources at these frequencies. With each generation of ECR ion sources, there are new challenges to be mastered, but the potential for higher performance and reduced cost of the associated accelerator continue to make this a promising avenue for development.
Date:
December 1, 2008
Creator:
Lyneis, Claude M.; Leitner, D.; Todd, D.S.; Sabbi, G.; Prestemon, S.; Caspi, S. et al.
Object Type:
Article
System:
The UNT Digital Library
Abilene Philharmonic Playbill: December 6-January 31, 2009
Program for an Abilene Philharmonic concert that ran from December 6th to January 31st during the 59th season. It includes information about the pieces performed, artists and musicians, and advertising from local companies.
Date:
December 2008
Creator:
Abilene Philharmonic
Object Type:
Pamphlet
System:
The Portal to Texas History
Abrupt Climate Change
This is an excerpt of a report series produced by the U.S. Climate Change Science Program (CCSP) aimed at providing current assessments of climate change science to inform public debate, policy, and operational decisions. The document contains a list of team members and authors, a memo to Congress, a table of contents, acknowledgements, recommended citations, a synopsis of the full report, and a preface.
Date:
December 2008
Creator:
Climate Change Science Program (U.S.)
Object Type:
Report
System:
The UNT Digital Library
Abrupt Climate Change: Final Report
This document is part of the Synthesis and Assessment Products (SAP) described in the U.S. Climate Change Science Program (CCSP) Strategic Plan. This report is meant to reduce uncertainty in projections of how the Earth's climate and related systems may change in the future. It provides scientific information for supporting the decision-making audience and the expert scientific and stakeholder community.
Date:
December 2008
Creator:
Climate Change Science Program (U.S.). Subcommittee on Global Change Research.
Object Type:
Book
System:
The UNT Digital Library
ACCELERATED PROCESSING OF SB4 AND PREPARATION FOR SB5 PROCESSING AT DWPF
The Defense Waste Processing Facility (DWPF) initiated processing of Sludge Batch 4 (SB4) in May 2007. SB4 was the first DWPF sludge batch to contain significant quantities of HM or high Al sludge. Initial testing with SB4 simulants showed potential negative impacts to DWPF processing; therefore, Savannah River National Laboratory (SRNL) performed extensive testing in an attempt to optimize processing. SRNL's testing has resulted in the highest DWPF production rates since start-up. During SB4 processing, DWPF also began incorporating waste streams from the interim salt processing facilities to initiate coupled operations. While DWPF has been processing SB4, the Liquid Waste Organization (LWO) and the SRNL have been preparing Sludge Batch 5 (SB5). SB5 has undergone low-temperature aluminum dissolution to reduce the mass of sludge for vitrification and will contain a small fraction of Purex sludge. A high-level review of SB4 processing and the SB5 preparation studies will be provided.
Date:
December 1, 2008
Creator:
Herman, C
Object Type:
Book
System:
The UNT Digital Library
ACRF Instrumentation Status: New, Current, and Future - November 2008
The purpose of this report is to provide a concise but comprehensive overview of Atmospheric Radiation Measurement Climate Research Facility instrumentation status. The report is divided into the following five sections: (1) new instrumentation in the process of being acquired and deployed, (2) field campaigns, (3) existing instrumentation and progress on improvements or upgrades, (4) proposed future instrumentation, and (5) Small Business Innovation Research instrument development.
Date:
December 1, 2008
Creator:
Voyles, J. W.
Object Type:
Report
System:
The UNT Digital Library
Advanced engineering environment collaboration project.
The Advanced Engineering Environment (AEE) is a model for an engineering design and communications system that will enhance project collaboration throughout the nuclear weapons complex (NWC). Sandia National Laboratories and Parametric Technology Corporation (PTC) worked together on a prototype project to evaluate the suitability of a portion of PTC's Windchill 9.0 suite of data management, design and collaboration tools as the basis for an AEE. The AEE project team implemented Windchill 9.0 development servers in both classified and unclassified domains and used them to test and evaluate the Windchill tool suite relative to the needs of the NWC using weapons project use cases. A primary deliverable was the development of a new real time collaborative desktop design and engineering process using PDMLink (data management tool), Pro/Engineer (mechanical computer aided design tool) and ProductView Lite (visualization tool). Additional project activities included evaluations of PTC's electrical computer aided design, visualization, and engineering calculations applications. This report documents the AEE project work to share information and lessons learned with other NWC sites. It also provides PTC with recommendations for improving their products for NWC applications.
Date:
December 1, 2008
Creator:
Lamph, Jane Ann; Pomplun, Alan R.; Kiba, Grant W.; Dutra, Edward G.; Dankiewicz, Robert J. & Marburger, Scot J.
Object Type:
Report
System:
The UNT Digital Library
Advanced Mud System for Microhole Coiled Tubing Drilling
An advanced mud system was designed and key components were built that augment a coiled tubing drilling (CTD) rig that is designed specifically to drill microholes (less than 4-inch diameter) with advanced drilling techniques. The mud system was tailored to the hydraulics of the hole geometries and rig characteristics required for microholes and is capable of mixing and circulating mud and removing solids while being self contained and having zero discharge capability. Key components of this system are two modified triplex mud pumps (High Pressure Slurry Pumps) for advanced Abrasive Slurry Jetting (ASJ) and a modified Gas-Liquid-Solid (GLS) Separator for well control, flow return and initial processing. The system developed also includes an additional component of an advanced version of ASJ which allows cutting through most all materials encountered in oil and gas wells including steel, cement, and all rock types. It includes new fluids and new ASJ nozzles. The jetting mechanism does not require rotation of the bottom hole assembly or drill string, which is essential for use with Coiled Tubing (CT). It also has low reactive forces acting on the CT and generates cuttings small enough to be easily cleaned from the well bore, which is important in …
Date:
December 1, 2008
Creator:
Oglesby, Kenneth
Object Type:
Report
System:
The UNT Digital Library
Affordances of External Representations in Instructional Design: The Effect of Narrative and Imagery in Learning.
Consisting of both theoretical and empirical inquires, this study examines the primary functions of narrative and the relationship between narrative and mental imagery. The study proposes a new framework to interpret semiotic resources. Combining this with the linguistic functional theory of Halliday (1978), a functional method to empirically investigate semiotic representations was also developed. In the empirical inquiry, the study developed a latent construct method to empirically test the effects of narrative in a real learning situation. This study is the first to investigate the functional relationship between narrative and mental imagery, and among the first to suggest a theory and empirically investigate representations of a multimodal nature. The study is also among the first to use latent constructs to investigate the learning experience in a real educational setting. Data were collected from 190 library professionals who enrolled in three sections (two in narrative and one in plain text) of an online course administered through Vista 4.0 and who completed the course and responded to several instruments. Essay data (n = 82 x 2) were analyzed using content analysis based on the narrative analysis framework developed. Quantitative data analysis methods include univariate data analysis, factor analysis, and structural equation modeling …
Date:
December 2008
Creator:
Wu, Yan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Age, Volume 30, Number 12, December 2008
Monthly publication containing information related to Chambers County, Texas, including current events of the Chambers County Historical Commission, the Wallisville Heritage Park, and the Chambers County historical and genealogical societies; reprinted newspaper articles about county events and citizens; and historical news and records.
Date:
December 2008
Creator:
Wallisville Heritage Park (Organization)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 110, No. 100, Ed. 1 Monday, December 1, 2008
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 1, 2008
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Americans With Disabilities: 2005
"This report presents information on the number and characteristics of individuals with disabilities and is based on data collected in wave 5 of the 2004 Panel of the Survey of Income and Program Participation (SIPP)."
Date:
December 2008
Creator:
Brault, Matthew W.
Object Type:
Text
System:
The UNT Digital Library
Americans With Disabilities: 2005
"This report presents information on the number and characteristics of individuals with disabilities and is based on data collected in wave 5 of the 2004 Panel of the Survey of Income and Program Participation (SIPP)."
Date:
December 2008
Creator:
Brault, Matthew W.
Object Type:
Text
System:
The UNT Digital Library
Analyses to Verify and Improve the Accuracy of the Manufactured Home Energy Audit (MHEA)
A series of analyses were performed to determine the reasons that the Manufactured Home Energy Audit (MHEA) over predicted space-heating energy savings as measured in a recent field test and to develop appropriate corrections to improve its performance. The study used the Home Energy Rating System (HERS) Building Energy Simulation Test (BESTEST) to verify that MHEA accurately calculates the UA-values of mobile home envelope components and space-heating energy loads as compared with other, well-accepted hourly energy simulation programs. The study also used the Procedures for Verification of RESNET Accredited HERS Software Tools to determine that MHEA accurately calculates space-heating energy consumptions for gas furnaces, heat pumps, and electric-resistance furnaces. Even though MHEA's calculations were shown to be correct from an engineering point of view, three modifications to MHEA's algorithms and use of a 0.6 correction factor were incorporated into MHEA to true-up its predicted savings to values measured in a recent field test. A simulated use of the revised version of MHEA in a weatherization program revealed that MHEA would likely still recommend a significant number of cost-effective weatherization measures in mobile homes (including ceiling, floor, and even wall insulation and far fewer storm windows). Based on the findings from …
Date:
December 1, 2008
Creator:
Ternes, Mark P & Gettings, Michael B
Object Type:
Report
System:
The UNT Digital Library
An Analysis and Performance Guide to William Lovelock's Concerto for Trumpet and Orchestra
This paper investigates the usage of traditional compositional techniques on Concerto for Trumpet and Orchestra by William Lovelock. (1899-1986) Like many other twentieth-century composers for trumpet Lovelock wrote in a romantic style using traditional forms. As a composer, Lovelock is largely under-appreciated. This paper explains Lovelock's compositional techniques and provides performers with a guide to help prepare the piece for performance.
Date:
December 2008
Creator:
Place, Logan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Analysis of Joseph Schwantner's Concerto for Percussion and Orchestra
This analysis of Schwantner's Concerto is focused primarily on the pitch organization within the work, using terminology and concepts borrowed from those designed by Allen Forte in The Structure of Atonal Music. Discussion of pitch sets, their use, their derivation, their intervallic content, and their evolution throughout the piece are discussed. Additional discussion regarding Schwantner's style, orchestration techniques, textural manipulation with regard to form, are also discussed. Sources consist of the orchestral score, the two - piano reduction, and the solo percussion score. This document is in six chapters. The first discusses Schwantner's life and general musical style. The second is a brief discussion of terms in the field of pitch set organization. The third, fourth, and fifth chapters discuss in detail the musical materials themselves in each respective movement. Finally, the sixth chapter is a summary of the findings from the analysis.
Date:
December 2008
Creator:
Hart, Shawn Michael
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Analysis of the charmed semileptonic decay D+ ---> rho0 mu+ nu
The search for the fundamental constituents of matter has been pursued and studied since the dawn of civilization. As early as the fourth century BCE, Democritus, expanding the teachings of Leucippus, proposed small, indivisible entities called atoms, interacting with each other to form the Universe. Democritus was convinced of this by observing the environment around him. He observed, for example, how a collection of tiny grains of sand can make out smooth beaches. Today, following the lead set by Democritus more than 2500 years ago, at the heart of particle physics is the hypothesis that everything we can observe in the Universe is made of a small number of fundamental particles interacting with each other. In contrast to Democritus, for the last hundred years we have been able to perform experiments that probe deeper and deeper into matter in the search for the fundamental particles of nature. Today's knowledge is encapsulated in the Standard Model of particle physics, a model describing the fundamental particles and their interactions. It is within this model that the work in this thesis is presented. This work attempts to add to the understanding of the Standard Model by measuring the relative branching fraction of the …
Date:
December 1, 2008
Creator:
Luiggi, Eduardo E. & U., /Vanderbilt
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
An Analysis of the Opinions of University Students about the Current Situation of the Headscarf Dispute in Turkey
This study examined the opinions of university students about the current situation of the headscarf dispute on the wearing of headscarves in Turkey. The influence of gender, the level of secularism, socioeconomic status and encounter with women wearing headscarves on opinions about the wearing of headscarves were analyzed in this study. The sample of this study was composed of 400 university students among whom there were 240 female and 160 male students. Moreover, the sample comprised university students from 50 universities from Turkey. The results indicated that the level of secularism and encounter with women wearing headscarves were distinguished as two determining factors of the diverse opinions of the university students on the topic. No association was found between the perceptions of university students about the issue and the independent variables of gender and socioeconomic status.
Date:
December 2008
Creator:
Aydemir, Dilek
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Analysis of the Technical and Economic Potential for Mid-Scale Distributed Wind: December 2007 - October 31, 2008
This report examines the status, restrainers, drivers, and estimated development potential of mid-scale (10 kW - 5000 kW) distributed wind energy projects.
Date:
December 1, 2008
Creator:
Kwartin, R.; Wolfrum, A.; Granfield, K.; Kagel, A. & Appleton, A.
Object Type:
Report
System:
The UNT Digital Library
Analyze and Rebuild an Apparatus to Gauge Evaporative Cooling Effectiveness of Micro-Porous Barriers.
The sample used for evaporative cooling system is Fabric defender 750 with Shelltite finish. From the experimental data and equations we have diffusion coefficient of 20.9 ± 3.71 x 10-6 m2/s for fabric with one layer with 17%-20% fluctuations from the theory, 27.8 ± 4.5 x 10-6 m2/s for fabric with two layers with 6%-14% fluctuations from the theory and 24.9 ± 4.1 x 10-6 m2/s for fabric with three layers with 13%-16% fluctuations from the theory. Since the thickness of the fabric increases so the mass transport rate decreases so the mass transport resistance should be increases. The intrinsic mass resistances of Fabri-1L, Fabri-2L and Fabri-3L are respectively 104 ± 10.2 s/m, 154 ± 23 s/m and 206 ± 26 s/m from the experiment.
Date:
December 2008
Creator:
Mohiti Asli, Ali
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library