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Senior Recital: 2012-04-26 - Kevin Bach, bass and Alec Bart, piano
Access:
Use of this item is restricted to the UNT Community
A senior recital performed at the UNT College of Music Kent Hall in partial fulfillment of the Bachelor's Degree in Music (BM).
Date:
April 26, 2012
Creator:
Bach, Kevin & Bart, Alec
Object Type:
Sound
System:
The UNT Digital Library
Retrospective on the Seniors' Council Tier 1 LDRD portfolio.
This report describes the Tier 1 LDRD portfolio, administered by the Seniors Council between 2003 and 2011. 73 projects were sponsored over the 9 years of the portfolio at a cost of $10.5 million which includes $1.9M of a special effort in directed innovation targeted at climate change and cyber security. Two of these Tier 1 efforts were the seeds for the Grand Challenge LDRDs in Quantum Computing and Next Generation Photovoltaic conversion. A few LDRDs were terminated early when it appeared clear that the research was not going to succeed. A great many more were successful and led to full Tier 2 LDRDs or direct customer sponsorship. Over a dozen patents are in various stages of prosecution from this work, and one project is being submitted for an R and D 100 award.
Date:
April 1, 2012
Creator:
Ballard, William Parker
Object Type:
Report
System:
The UNT Digital Library
xdamp Version 6 : an IDL-based data and image manipulation program.
The original DAMP (DAta Manipulation Program) was written by Mark Hedemann of Sandia National Laboratories and used the CA-DISSPLA{trademark} (available from Computer Associates International, Inc., Garden City, NY) graphics package as its engine. It was used to plot, modify, and otherwise manipulate the one-dimensional data waveforms (data vs. time) from a wide variety of accelerators. With the waning of CA-DISSPLA and the increasing popularity of Unix(reg sign)-based workstations, a replacement was needed. This package uses the IDL(reg sign) software, available from Research Systems Incorporated, a Xerox company, in Boulder, Colorado, as the engine, and creates a set of widgets to manipulate the data in a manner similar to the original DAMP and earlier versions of xdamp. IDL is currently supported on a wide variety of Unix platforms such as IBM(reg sign) workstations, Hewlett Packard workstations, SUN(reg sign) workstations, Microsoft(reg sign) Windows{trademark} computers, Macintosh(reg sign) computers and Digital Equipment Corporation VMS(reg sign) and Alpha(reg sign) systems. Thus, xdamp is portable across many platforms. We have verified operation, albeit with some minor IDL bugs, on personal computers using Windows 7 and Windows Vista; Unix platforms; and Macintosh computers. Version 6 is an update that uses the IDL Virtual Machine to resolve the …
Date:
April 1, 2012
Creator:
Ballard, William Parker
Object Type:
Report
System:
The UNT Digital Library
Cellulose and cellobiose: adventures of a wandering organic chemist in theoretical chemistry
The energies arising from the rotation of free hydroxyl groups in the central glucose residue of a cellulose crystalline assembly, calculated using RHF, DFT, and FMO2/MP2 methods, will be presented. In addition, interactions of this central glucose residue with some of the surrounding residues (selected on the basis of the interaction strengths) are analyzed. The mechanism of acid-catalyzed hydrolysis of cellobiose, which is the repeating unit of cellulose. Energies corresponding to the different steps of this mechanism calculated using RHF and DFT are compared with those previously reported using molecular dynamics calculations and with experimental data.
Date:
April 3, 2012
Creator:
Baluyut, John
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Corrugated Pipe as a Beam Dechirper
We have studied the use of a metallic pipe with small corrugations for the purpose of passively dechirping, through its wakefield, a short, intense electron bunch. The corrugated pipe is attractive for this purpose because its wake: (i) has near maximal possible amplitude for a given aperture and (ii) has a relatively large oscillation wave length, even when the aperture is small. We showed how the corrugated structure can satisfy dechirping requirements encountered in the NGLS project at LBNL. We found that a linear chirp of -40 MeV/mm can be induced by an NGLS-like beam, by having it pass through a corrugated, metallic pipe of radius 3 mm, length 8.2 m, and corrugation parameters full depth 450 {mu}m and period 1000 {mu}m. This structure is about 15 times as effective in the role of dechirper as an S-band accelerator structure used passively.
Date:
April 20, 2012
Creator:
Bane, K. L. F. & Stupakov, G.
Object Type:
Report
System:
The UNT Digital Library
A Note on the Convergence of the Godunov Method for Impact Problems
None
Date:
April 18, 2012
Creator:
Banks, J W
Object Type:
Article
System:
The UNT Digital Library
Trade Law: An Introduction to Selected International Agreements and U.S. Laws
This report is an introductory overview of the legal framework governing trade-related measures. The agreements and laws selected for discussion are those most commonly implicated by U.S. trade interests, but there are U.S. trade laws and obligations beyond those reviewed in this report.
Date:
April 3, 2012
Creator:
Barbour, Emily C.
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Earl B. Barnawell, April 22, 2012
The National Museum of the Pacific War presents an interview with Earl B Barnawell. Barnawell joined the Navy around 1942. He graduated from Hospital Corps School. Beginning April of 1944, Barnawell served as an operating room technician aboard USS Herald of the Morning (AP-173). They traveled to the Marianas, transporting supplies, debarking troops and evacuating the wounded. Barnawell additionally served with occupation forces in the Far East.
Date:
April 22, 2012
Creator:
Barnawell, Earl B
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with Earl B. Barnawell, April 22, 2012
The National Museum of the Pacific War presents an interview with Earl B Barnawell. Barnawell joined the Navy around 1942. He graduated from Hospital Corps School. Beginning April of 1944, Barnawell served as an operating room technician aboard USS Herald of the Morning (AP-173). They traveled to the Marianas, transporting supplies, debarking troops and evacuating the wounded. Barnawell additionally served with occupation forces in the Far East.
Date:
April 22, 2012
Creator:
Barnawell, Earl B
Object Type:
Text
System:
The Portal to Texas History
Pacific Northwest National Laboratory Facility Radionuclide Emissions Units and Sampling Systems
Battelle-Pacific Northwest Division operates numerous research and development (R and D) laboratories in Richland, WA, including those associated with Pacific Northwest National Laboratory (PNNL) on the U.S. Department of Energy (DOE)'s Hanford Site and PNNL Site that have the potential for radionuclide air emissions. The National Emission Standard for Hazardous Air Pollutants (NESHAP 40 CFR 61, Subparts H and I) requires an assessment of all emission units that have the potential for radionuclide air emissions. Potential emissions are assessed annually by PNNL staff members. Sampling, monitoring, and other regulatory compliance requirements are designated based upon the potential-to-emit dose criteria found in the regulations. The purpose of this document is to describe the facility radionuclide air emission sampling program and provide current and historical facility emission unit system performance, operation, and design information. For sampled systems, a description of the buildings, exhaust units, control technologies, and sample extraction details is provided for each registered emission unit. Additionally, applicable stack sampler configuration drawings, figures, and photographs are provided. Deregistered emission unit details are provided as necessary for up to 5 years post closure.
Date:
April 1, 2012
Creator:
Barnett, J. M.; Brown, Jason H. & Walker, Brian A.
Object Type:
Report
System:
The UNT Digital Library
MiniGhost : a miniapp for exploring boundary exchange strategies using stencil computations in scientific parallel computing.
A broad range of scientific computation involves the use of difference stencils. In a parallel computing environment, this computation is typically implemented by decomposing the spacial domain, inducing a 'halo exchange' of process-owned boundary data. This approach adheres to the Bulk Synchronous Parallel (BSP) model. Because commonly available architectures provide strong inter-node bandwidth relative to latency costs, many codes 'bulk up' these messages by aggregating data into a message as a means of reducing the number of messages. A renewed focus on non-traditional architectures and architecture features provides new opportunities for exploring alternatives to this programming approach. In this report we describe miniGhost, a 'miniapp' designed for exploration of the capabilities of current as well as emerging and future architectures within the context of these sorts of applications. MiniGhost joins the suite of miniapps developed as part of the Mantevo project.
Date:
April 1, 2012
Creator:
Barrett, Richard Frederick; Heroux, Michael Allen & Vaughan, Courtenay Thomas
Object Type:
Report
System:
The UNT Digital Library
Ensemble: 2012-04-16 – Dr. K’s Rockin’ College Combo
Access:
Use of this item is restricted to the UNT Community
Ensemble concert performed at the UNT College of Music Voertman Hall.
Date:
April 16, 2012
Creator:
Barrow, Arthur & Mars, Tommy
Object Type:
Sound
System:
The UNT Digital Library
IEEE Smart Grid Series of Standards IEEE 2030 (Interoperability) and IEEE 1547 (Interconnection) Status: Preprint
The IEEE American National Standards smart grid publications and standards development projects IEEE 2030, which addresses smart grid interoperability, and IEEE 1547TM, which addresses distributed resources interconnection with the grid, have made substantial progress since 2009. The IEEE 2030TM and 1547 standards series focus on systems-level aspects and cover many of the technical integration issues involved in a mature smart grid. The status and highlights of these two IEEE series of standards, which are sponsored by IEEE Standards Coordinating Committee 21 (SCC21), are provided in this paper.
Date:
April 1, 2012
Creator:
Basso, T. & DeBlasio, R.
Object Type:
Article
System:
The UNT Digital Library
Depression and Obesity: Does Depression Cause Obesity, or Obesity Cause Depression, or Both?
Poster presentation for the 2012 University Scholars Day at the University of North Texas discussing research on the relationship between depression and obesity.
Date:
April 19, 2012
Creator:
Battikh, Ahmed H. & Verrill, Diane
Object Type:
Poster
System:
The UNT Digital Library
Ring Walking/Oxidative Addition Reactions for the Controlled Synthesis of Conjugated Polymers
Power conversion efficiencies of plastic solar cells depend strongly on the molecular weight characteristics of the semiconducting polymers used for their fabrication. The synthesis of these materials typically relies on transition metal mediated catalytic reactions. In many instances, the ideal structures cannot be attained because of deficiencies in these reactions, particularly when it comes to being able to achieve high number average molecular weights and narrow molecular weight distributions. Another important conjugated polymer structure of interest is one in which a single functional group is attached at the end group of the chain. Such systems would be ideal for modifying surface properties at interfaces and for labeling biomolecular probes used in fluorescent biosensors. To respond to the challenges above, our efforts have centered on the design of homogenous transition metal complexes that are easy to prepare and effective in carrying out living, or quasi-living, condensative chain polymerization reactions. The key mechanistic challenge for the success of this reaction is to force the insertion of one monomer unit at a time via a process that involves migration of the transition metal-containing fragment to one terminus of the polymer chain. Chain growth characteristics are therefore favored when the metal does not dissociate …
Date:
April 3, 2012
Creator:
Bazan, Guillermo C
Object Type:
Report
System:
The UNT Digital Library
Marine Hydrokinetic Turbine Power-Take-Off Design for Optimal Performance and Low Impact on Cost-of-Energy: Preprint
Marine hydrokinetic devices are becoming a popular method for generating marine renewable energy worldwide. These devices generate electricity by converting the kinetic energy of moving water, wave motion or currents, into electrical energy through the use of a Power-Take-Off (PTO) system. Most PTO systems incorporate a mechanical or hydraulic drive train, power generator and electric control/conditioning system to deliver the generated electric power to the grid at the required state. Like wind turbine applications, the PTO system must be designed for high reliability, good efficiency, and long service life with reasonable maintenance requirements, low cost and an appropriate mechanical design for anticipated applied steady and unsteady loads. The ultimate goal of a PTO design is high efficiency, low maintenance and cost with a low impact on the device Cost-of-Energy (CoE).
Date:
April 1, 2012
Creator:
Beam, M.; Kline, B.; Elbing, B.; Straka, W.; Fontaine, A.; Lawson, M. et al.
Object Type:
Article
System:
The UNT Digital Library
The Importance of Superstition as Competition Increases
Poster presentation for the 2012 University Scholars Day at the University of North Texas discussing research on the importance of superstition as competition increases.
Date:
April 19, 2012
Creator:
Beavers, Danielle & Eve, Susan Brown
Object Type:
Poster
System:
The UNT Digital Library
Final Report: Multi-State Sharing Initiative
In 2003 a joint effort between the U.S. Department of Homeland Security (DHS) and the U.S. Department of Justice created state and metropolitan intelligence fusion centers. These fusion centers were an effort to share law enforcement, disaster, and terrorism related information and intelligence between state and local jurisdictions and to share terrorism related intelligence between state and local law enforcement agencies and various federal entities. In 2006, DHS commissioned the Oak Ridge National Laboratory to establish and manage a groundbreaking program to assist local, state, and tribal leaders in developing the tools and methods required to anticipate and forestall terrorist events and to enhance disaster response. This program, called the Southeast Region Research Initiative (SERRI), combines science and technology with validated operational approaches to address regionally unique requirements and suggest regional solutions with the potential for national application. In 2009, SERRI sponsored the Multistate Sharing Initiative (MSSI) to assist state and metropolitan intelligence fusion centers with sharing information related to a wider variety of state interests than just terrorism. While these fusion centers have been effective at sharing data across organizations within their respective jurisdictions, their organizational structure makes bilateral communication with federal entities convenient and also allows information to …
Date:
April 1, 2012
Creator:
Begoli, Edmon; Boehmann, Brant & DeNap, Frank A
Object Type:
Report
System:
The UNT Digital Library
First Dark Matter Search Results from a 4-kg CF$_3$I Bubble Chamber Operated in a Deep Underground Site
New data are reported from the operation of a 4.0 kg CF{sub 3}I bubble chamber in the 6800 foot deep SNOLAB underground laboratory. The effectiveness of ultrasound analysis in discriminating alpha decay background events from single nuclear recoils has been confirmed, with a lower bound of >99.3% rejection of alpha decay events. Twenty single nuclear recoil event candidates and three multiple bubble events were observed during a total exposure of 553 kg-days distributed over three different bubble nucleation thresholds. The effective exposure for single bubble recoil-like events was 437.4 kg-days. A neutron background internal to the apparatus, of known origin, is estimated to account for five single nuclear recoil events and is consistent with the observed rate of multiple bubble events. This observation provides world best direct detection constraints on WIMP-proton spin-dependent scattering for WIMP masses >20 GeV/c{sup 2} and demonstrates significant sensitivity for spin-independent interactions.
Date:
April 1, 2012
Creator:
Behnke, E.; Behnke, J.; Conner, A.; Grace, E.; Levine, I.; Moan, T. et al.
Object Type:
Article
System:
The UNT Digital Library
U.S. Energy: Overview and Key Statistics
Energy supplies and prices are major economic factors in the United States, and energy markets are volatile and unpredictable. Thus, energy policy has been a recurring issue for Congress since the first major crisis in the 1970s. As an aid in policy making, this report presents a current and historical view of the supply and consumption of various forms of energy.
Date:
April 11, 2012
Creator:
Behrens, Carl E. & Glover, Carol
Object Type:
Report
System:
The UNT Digital Library
[Email from Dreanna Beldon to Jack and George, April 9, 2012]
Email from Dreanna Beldon to Jack and George discussing the upcoming meeting between University of North Texas representatives and the Dallas Way.
Date:
April 9, 2012
Creator:
Beldon, Dreanna
Object Type:
Letter
System:
The UNT Digital Library
Ag on Si(111) from basic science to application
In our work we revisit Ag and Au adsorbates on Si(111)-7x7, as well as experiment with a ternary system of Pentacene, Ag and Si(111). Of particular interest to us is the Si(111)-({radical}3x{radical}3)R30{degree}–Ag (Ag-Si-{radical}3 hereafter). In this thesis I systematically e plore effects of Ag deposition on the Ag-Si-{radical}3 at different temperatures, film thicknesses and deposition fluxes. The generated insight of the Ag system on the Si(111) is then applied to generate novel methods of nanostructuring and nanowire growth. I then extend our expertise to the Au system on the Ag-Si(111) to gain insight into Au-Si eutectic silicide formation. Finally we explore behavior and growth modes of an organic molecule on the Ag-Si interface.
Date:
April 4, 2012
Creator:
Belianinov, Aleksey
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Factors That Affect Children's Literacy
Poster presentation for the 2012 University Scholars Day at the University of North Texas discussing research on factors that affect children's literacy.
Date:
April 19, 2012
Creator:
Bellotte, Amy & Eve, Susan Brown
Object Type:
Poster
System:
The UNT Digital Library
Water-related Issues Affecting Conventional Oil and Gas Recovery and Potential Oil-Shale Development in the Uinta Basin, Utah
Saline water disposal is one of the most pressing issues with regard to increasing petroleum and natural gas production in the Uinta Basin of northeastern Utah. Conventional oil fields in the basin provide 69 percent of Utah?s total crude oil production and 71 percent of Utah?s total natural gas, the latter of which has increased 208% in the past 10 years. Along with hydrocarbons, wells in the Uinta Basin produce significant quantities of saline water ? nearly 4 million barrels of saline water per month in Uintah County and nearly 2 million barrels per month in Duchesne County. As hydrocarbon production increases, so does saline water production, creating an increased need for economic and environmentally responsible disposal plans. Current water disposal wells are near capacity, and permitting for new wells is being delayed because of a lack of technical data regarding potential disposal aquifers and questions concerning contamination of freshwater sources. Many companies are reluctantly resorting to evaporation ponds as a short-term solution, but these ponds have limited capacity, are prone to leakage, and pose potential risks to birds and other wildlife. Many Uinta Basin operators claim that oil and natural gas production cannot reach its full potential until a …
Date:
April 30, 2012
Creator:
Berg, Michael Vanden; Anderson, Paul; Wallace, Janae; Morgan, Craig & Carney, Stephanie
Object Type:
Report
System:
The UNT Digital Library