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Accountability versus Autonomy? Toward a More Responsible Practice of Science
This paper was awarded a Nicholas and Anna Ricco Ethics Award for 2013. In this paper, the author discusses issues related to accountability versus autonomy and suggestions toward a more responsible practice of science.
Date:
February 2013
Creator:
Barr, Kelli R.
Object Type:
Paper
System:
The UNT Digital Library
Analysis of Pu-Only Partitioning Strategies in LMFBR Fuel Cycles
Sodium cooled Fast Reactors (SFR) have been under consideration for production of electricity, fissile material production, and for destruction of transuranics for decades. The neutron economy of a SFR can be operated in one of two ways. One possibility is to operate the reactor in a transuranic burner mode which has been the focus of active R&D in the last 15 years. However, prior to that the focus was on breeding transuranics. This later mode of managing the neutron economy relies on ensuring the maximum fuel utilization possible in such a way as to maximize the amount of plutonium produced per unit of fission energy in the reactor core. The goal of maximizing plutonium production in this study is as fissile feed stock for the production of MOX fuel to be used in Light Water Reactors (LWR). Throughout the l970’s, this fuel cycle scenario was the focus of much research by the Atomic Energy Commission in the event that uranium supplies would be scarce. To date, there has been sufficient uranium to supply the once through nuclear fuel cycle. However, interest in a synergistic relationship Liquid Metal Fast Breeder Reactors (LMFBR) and a consumer LWR fleet persists, prompting this study. …
Date:
February 1, 2013
Creator:
Bays, Samuel & Youinou, Gilles
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 drivetrain, 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 and low maintenance and cost, with a low impact on the device cost-of-energy (CoE).
Date:
February 1, 2013
Creator:
Beam, M.; Kline, B.; Elbing, B.; Straka, W.; Fontaine, A.; Lawson, M. et al.
Object Type:
Article
System:
The UNT Digital Library
Doctoral Recital: 2013-02-16 - Nathan Beaty, clarinet
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
February 6, 2013
Creator:
Beaty, Nathan
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 2013-02-27 - David Begnoche, trombone
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
February 27, 2013
Creator:
Begnoche, David
Object Type:
Sound
System:
The UNT Digital Library
Final Report for The University of Texas at Arlington Optical Medical Imaging Section of Advanced Imaging Research Center
The goal of this project was to create state-of-the-art optical medical imaging laboratories for the Biomedical Engineering faculty and student researchers of the University of Texas at Arlington (UTA) on the campus of the University of Texas Southwestern Medical Center (UTSW). This has been successfully achieved. These laboratories provide an unprecedented opportunity for the bioengineers (from UTA) to bring about new breakthroughs in medical imaging using optics. Specifically, three major laboratories have been successfully established and state-of-the-art scientific instruments have been placed in the labs. As a result of this grant, numerous journal and conference publications have been generated, patents for new inventions have been filed and received, and many additional grants for the continuation of the research has been received.
Date:
February 26, 2013
Creator:
Behbehani, Khosrow
Object Type:
Report
System:
The UNT Digital Library
Expert Meeting Report: Energy Savings You Can Bank On
In October 2011, ARBI organized and conducted an Experts' Meeting on the topic of performance guarantees and financing vehicles for Energy Efficiency Upgrades. The meeting brought together technical, policy, and financial experts, including researchers, experienced installation contractors, and innovative energy business leaders, in order to discuss the opportunities and challenges for the energy efficiency upgrade industry to increase market uptake of Home Energy Upgrades (HEUs) through innovative offerings, such as performance guarantees. The meeting had several primary goals. First, it sought to understand how other industries have developed successful models for financing renewable energy installations while providing performance guarantees. This has been most recently demonstrated by the solar leasing industry. Second, the meeting explored the applicability of such business models to the energy efficiency upgrade industry. Third, the meeting sought to identify technical impediments to performance guarantees for energy efficiency retrofits. Fourth, the meeting sought to provide a common framework for these goals within the context of current financing mechanisms for energy efficiency upgrades.
Date:
February 1, 2013
Creator:
Beman, M.; Springer, J.; Smith, P. & Porse, E.
Object Type:
Report
System:
The UNT Digital Library
Operational Philosophy for the Advanced Test Reactor National Scientific User Facility
In 2007, the Department of Energy (DOE) designated the Advanced Test Reactor (ATR) as a National Scientific User Facility (NSUF). At its core, the ATR NSUF Program combines access to a portion of the available ATR radiation capability, the associated required examination and analysis facilities at the Idaho National Laboratory (INL), and INL staff expertise with novel ideas provided by external contributors (universities, laboratories, and industry). These collaborations define the cutting edge of nuclear technology research in high-temperature and radiation environments, contribute to improved industry performance of current and future light-water reactors (LWRs), and stimulate cooperative research between user groups conducting basic and applied research. To make possible the broadest access to key national capability, the ATR NSUF formed a partnership program that also makes available access to critical facilities outside of the INL. Finally, the ATR NSUF has established a sample library that allows access to pre-irradiated samples as needed by national research teams.
Date:
February 1, 2013
Creator:
Benson, J.; Cole, J.; Jackson, J.; Marshall, F.; Ogden, D.; Rempe, J. et al.
Object Type:
Report
System:
The UNT Digital Library
Borger News-Herald (Borger, Tex.), Vol. 88, No. 38, Ed. 1 Wednesday, February 13, 2013
Daily newspaper from Borger, Texas that includes local, state and national news along with advertising.
Date:
February 13, 2013
Creator:
Berry, Michelle
Object Type:
Newspaper
System:
The Portal to Texas History
Preconceptual Feasibility Study to Evaluate Alternative Means to Produce Plutonium-238
There is currently no large-scale production of 238Pu in the United States. Feasibility studies were performed at the Idaho National Laboratory to assess the capability of developing alternative 238Pu production strategies. Initial investigations indicate potential capability to provision radioisotope-powered systems for future space exploration endeavors. For the short term production of 238Pu, sealed canisters of dilute 237Np solution in nitric acid could be irradiated in the Advanced Test Reactor (ATR). Targets in the large and medium “I” positions of the ATR were irradiated over a simulated period of 306 days and analyzed using MCNP5 and ORIGEN2.2. Approximately 0.5 kg of 238Pu could be produced annually in the ATR with purity greater than 92%. Optimization of the irradiation cycles could further increase the purity to greater than 98%. Whereas the typical purity of space batteries is between 80 to 85%, the higher purity 238Pu produced in the ATR could be blended with existing lower-purity inventory to produce useable material. Development of irradiation methods in the ATR provides the fastest alterative to restart United States 238Pu production. The analysis of 238Pu production in the ATR provides the technical basis for production using TRIGA® (Training, Research, Isotopes, General Atomics) nuclear reactors. Preliminary analyses …
Date:
February 1, 2013
Creator:
Bess, John D. & Everson, Matthew S.
Object Type:
Article
System:
The UNT Digital Library
Validation of FSP Reactor Design with Sensitivity Studies of Beryllium-Reflected Critical Assemblies
The baseline design for space nuclear power is a fission surface power (FSP) system: sodium-potassium (NaK) cooled, fast spectrum reactor with highly-enriched-uranium (HEU)-O2 fuel, stainless steel (SS) cladding, and beryllium reflectors with B4C control drums. Previous studies were performed to evaluate modeling capabilities and quantify uncertainties and biases associated with analysis methods and nuclear data. Comparison of Zero Power Plutonium Reactor (ZPPR)-20 benchmark experiments with the FSP design indicated that further reduction of the total design model uncertainty requires the reduction in uncertainties pertaining to beryllium and uranium cross-section data. Further comparison with three beryllium-reflected HEU-metal benchmark experiments performed at the Oak Ridge Critical Experiments Facility (ORCEF) concluded the requirement that experimental validation data have similar cross section sensitivities to those found in the FSP design. A series of critical experiments was performed at ORCEF in the 1960s to support the Medium Power Reactor Experiment (MPRE) space reactor design. The small, compact critical assembly (SCCA) experiments were graphite- or beryllium-reflected assemblies of SS-clad, HEU-O2 fuel on a vertical lift machine. All five configurations were evaluated as benchmarks. Two of the five configurations were beryllium reflected, and further evaluated using the sensitivity and uncertainty analysis capabilities of SCALE 6.1. Validation of …
Date:
February 1, 2013
Creator:
Bess, John D. & Marshall, Margaret A.
Object Type:
Article
System:
The UNT Digital Library
Sessions, Adjournments, and Recesses of Congress
This report first describes how pertinent rules and practices regulate the daily sessions of Congress and their adjournments and recesses, including discussion of the "legislative day." It then develops a corresponding discussion for the annual sessions of Congress, which addresses, among other things, the use of "pro forma sessions." The report clarifies certain situations in which terms may simultaneously apply in different ways in relation to the daily session and to the annual session. Finally, the report notes some of the most important implications of the occurrence of sessions, adjournments, and recesses in relation to such matters as presidential action on legislation, recess appointments by the President, the operation of statutory expedited procedures ("fast track" procedures), and "lame duck" (post-election) sessions.
Date:
February 27, 2013
Creator:
Beth, Richard S. & Tollestrup, Jessica
Object Type:
Report
System:
The UNT Digital Library
Precomparator and postcomparator errors in monopulse.
Monopulse radar is a well-established technique for extracting accurate target location information in the presence of target scintillation. It relies on the comparison of at least two patterns being received simultaneously by the antenna. These two patterns are designed to differ in the direction in which we wish to obtain the target angle information. The two patterns are compared to each other through a standard method, typically by forming the ratio of the difference of the patterns to the sum of the patterns. The key to accurate angle information using monopulse is that the mapping function from the target angle to this ratio is well-behaved and well-known. Errors in the amplitude and phase of the signals prior and subsequent to the comparison operation affect the mapping function. The purpose of this report is to provide some intuition into these error effects upon the mapping function.
Date:
February 1, 2013
Creator:
Bickel, Douglas Lloyd
Object Type:
Report
System:
The UNT Digital Library
[Program: 9th Annual Weekend Festival of Black Dance]
Program for an annual festival celebrating traditional African American dance produced by the Black Academy of Arts and Letters on February 22-23, 2013 at the Naomi Burton Theater.
Date:
February 2013
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: Believe Concert]
Program for a music performance produced by the Black Academy of Arts and Letters on February 1-2, 2013 at the Clarence Muse Cafe Theatre.
Date:
February 2013
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: Do Lord Remember Me]
Program for the theatrical performance of "Do Lord Remember Me," which was written by James de Jongh, directed by Curtis King, and produced by the Black Academy of Arts and Letters on February 8-9, 2013 at the Clarence Muse Cafe Theatre.
Date:
February 2013
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: I. Am. Somebody!]
Program for the theatrical performance of "I Am Somebody," which was written by Roosevelt Wright, Jr. and produced by the Black Academy of Arts and Letters on February 17, 2013 at the
Date:
February 2013
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: Season 36 Comedy Night at the Muse]
Program for a comedy performance featuring Jay Lamont and produced by the Black Academy of Arts and Letters on February 15-16, 2013 at the Dallas Convention Center Theatre.
Date:
February 2013
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
DOD Alternative Fuels: Policy, Initiatives and Legislative Activity
This report provides background information and identifies issues for Congress regarding Department of Defense (DOD) alternative fuel initiatives, a subject of debate at congressional hearings on DOD's proposed FY2013 budget. The services (the Army, Navy, and Air Force) have spent approximately $48 million to purchase alternative fuels, and the Navy has proposed a $170 million investment in biofuel production capacity. The services have also spent funds on testing, certification and demonstrations of alternative fuels. By comparison, DOD purchases of petroleum fuels totaled approximately $17.3 billion in FY2011.
Date:
February 11, 2013
Creator:
Blakeley, Katherine
Object Type:
Report
System:
The UNT Digital Library
Kenya: Current Issues and U.S. Policy
This report provides background information regarding on political and security situation in Kenya. The report discusses U.S.-Kenya relations, as U.S. government views Kenya as a strategic partner and anchor state in East Africa, and as critical to counterterrorism efforts in the region.
Date:
February 26, 2013
Creator:
Blanchard, Lauren Ploch
Object Type:
Report
System:
The UNT Digital Library
Abortion and Family Planning-Related Provisions in U.S. Foreign Assistance Law and Policy
This report details legislation and policies that restrict or place requirements on U.S. funding of abortion or family planning activities abroad. The level and extent of federal funding for these activities is an ongoing and controversial issue in U.S. foreign assistance and will likely continue to be a point of contention during the 113th Congress.
Date:
February 12, 2013
Creator:
Blanchfield, Luisa
Object Type:
Report
System:
The UNT Digital Library
International Family Planning Programs: Issues for Congress
This report looks at how the debate over family planning within the U.S. is spilling over to U.S.-funded family planning programs abroad.
Date:
February 21, 2013
Creator:
Blanchfield, Luisa
Object Type:
Report
System:
The UNT Digital Library
Report of the ICFA Beam Dynamics Workshop 'Accelerators for a Higgs Factory: Linear Vs. Circular' (HF2012)
None
Date:
February 19, 2013
Creator:
Blondel, Alain; Chao, Alex; Chou, Weiren; Gao, Jie; Schulte, Daniel & Yokoya, Kaoru
Object Type:
Article
System:
The UNT Digital Library
Doctoral Recital: 2013-02-21 - Laura Bloss, trumpet
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
February 21, 2013
Creator:
Bloss, Laura
Object Type:
Sound
System:
The UNT Digital Library