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262 Matching Results
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Dumping of Exports and Antidumping Duties: Implications for the U.S. Economy
Dumping in the United States is the selling of a product by a foreign producer at a price that is below the product’s sale price in the country of origin, or at a price that is lower than the cost of production. Under U.S. law such an action is considered an unfair trade practice. If that action is found to cause “material injury” to a competing domestic industry, an antidumping duty equal to the “dumping margin” will be levied against the foreign good.
Date:
November 23, 2004
Creator:
Elwell, Craig K.
Object Type:
Report
System:
The UNT Digital Library
DUNE - a granular flow code
DUNE was designed to accurately model the spectrum of granular. Granular flow encompasses the motions of discrete particles. The particles are macroscopic in that there is no Brownian motion. The flow can be thought of as a dispersed phase (the particles) interacting with a fluid phase (air or water). Validation of the physical models proceeds in tandem with simple experimental confirmation. The current development team is working toward the goal of building a flexible architecture where existing technologies can easily be integrated to further the capability of the simulation. We describe the DUNE architecture in some detail using physics models appropriate for an imploding liner experiment.
Date:
November 23, 2004
Creator:
Slone, D M; Cottom, T L & Bateson, W B
Object Type:
Article
System:
The UNT Digital Library
The Effect on Stellarator Neoclassical Transport of a Fluctuating Electrostatic Spectrum
We study the effect on neoclassical transport of applying a fluctuating electrostatic spectrum, such as produced either by plasma turbulence, or imposed externally. For tokamaks, it is usually assumed that the neoclassical and ''anomalous'' contributions to the transport roughly superpose, D = D{sub nc} + D{sub an}, an intuition also used in modeling stellarators. An alternate intuition, however, is one where it is the collisional and anomalous scattering frequencies which superpose, {nu}{sub ef} = {nu} + {nu}{sub an}. For nonaxisymmetric systems, in regimes where {partial_derivative}D/{partial_derivative}{nu} < 0, this ''{nu}{sub ef} picture'' implies that turning on the fluctuations can decrease the total radial transport. Using numerical and analytic means, it is found that the total transport has contributions conforming to each of these intuitions, either of which can dominate. In particular, for stellarators, the {nu}{sub ef} picture is often valid, producing transport behavior differing from tokamaks.
Date:
November 23, 2004
Creator:
Mynick, H. E. & Boozer, A. H.
Object Type:
Report
System:
The UNT Digital Library
ENGINEERED BARRIER SYSTEM: PHYSICAL AND CHEMICAL ENVIRONMENT
The purpose of this report is to describe the evolution of the physical and chemical environmental conditions within the waste emplacement drifts of the repository, including the drip shield and waste package surfaces. The abstraction model is used in the total system performance assessment for the license application (TSPA LA) to assess the performance of the engineered barrier system and the waste form. This report develops and documents a set of these abstraction-level models that describe the engineered barrier system physical and chemical environment. Where possible, these models use information directly from other reports as input, which promotes integration among process models used for TSPA-LA. Specific tasks and activities of modeling the physical and chemical environment are included in ''Technical Work Plan for: Near-Field Environment and Transport In-Drift Geochemistry Model Report Integration'' (BSC 2004 [DIRS 171156], Section 1.2.2). As described in the technical work plan, the development of this report is coordinated with the development of other engineered barrier system reports.
Date:
November 23, 2004
Creator:
Jarek, R.
Object Type:
Report
System:
The UNT Digital Library
Ensemble: 2004-11-23 – One O'Clock Lab Band
Access:
Use of this item is restricted to the UNT Community
Jazz concert performed at the UNT College of Music Winspear Hall.
Date:
November 23, 2004
Creator:
One O'Clock Lab Band
Object Type:
Sound
System:
The UNT Digital Library
Evaluation of 2004 Toyota Prius Hybrid Electric Drive System Interim Report
Laboratory tests were conducted to evaluate the electrical and mechanical performance of the 2004 Toyota Prius and its hybrid electric drive system. As a hybrid vehicle, the 2004 Prius uses both a gasoline-powered internal combustion engine and a battery-powered electric motor as motive power sources. Innovative algorithms for combining these two power sources results in improved fuel efficiency and reduced emissions compared to traditional automobiles. Initial objectives of the laboratory tests were to measure motor and generator back-electromotive force (emf) voltages and determine gearbox-related power losses over a specified range of shaft speeds and lubricating oil temperatures. Follow-on work will involve additional performance testing of the motor, generator, and inverter. Information contained in this interim report summarizes the test results obtained to date, describes preliminary conclusions and findings, and identifies additional areas for further study.
Date:
November 23, 2004
Creator:
Ayers, C.W.
Object Type:
Report
System:
The UNT Digital Library
An Evaluation of the Difference Formulation for Photon Transport in a Two Level System
In this paper we extend the difference formulation for radiation transport to the case of a single atomic line. We examine the accuracy, performance and stability of the difference formulation within the framework of the Symbolic Implicit Monte Carlo method. The difference formulation, introduced for thermal radiation by some of the authors, has the unique property that the transport equation is written in terms that become small for thick systems. We find that the difference formulation has a significant advantage over the standard formulation for a thick system. The correct treatment of the line profile, however, requires that the difference formulation in the core of the line be mixed with the standard formulation in the wings, and this may limit the advantage of the method. We bypass this problem by using the gray approximation. We develop three Monte Carlo solution methods based on different degrees of implicitness for the treatment of the source terms, and we find only conditional stability unless the source terms are treated fully implicitly.
Date:
November 23, 2004
Creator:
Daffin, F C; McKinley, M S; Brooks, E D & Szoke, A
Object Type:
Article
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, November 23, 2004
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 23, 2004
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Final Equal Employment Opportunity Commission Rules on Retiree Health Plans and the Age Discrimination in Employment Act
None
Date:
November 23, 2004
Creator:
Dale, Charles V.
Object Type:
Report
System:
The UNT Digital Library
Fishery, Aquaculture, and Marine Mammal Legislation in the 108th Congress
This report provides information about the Fishery, Aquaculture, and Marine Mammal Legislation in the 108th Congress. fish and marine are important resources in the open ocean and nearshore coastal areas.
Date:
November 23, 2004
Creator:
Buck, Eugene H.
Object Type:
Report
System:
The UNT Digital Library
A General Initial Decomposition Reaction for Complex Metal Hydrides
The initial thermally activated decomposition of several complex metal hydride compounds, to a binary alkali or alkaline hydride and a group IIIb metal hydride, appears to share a first step in their decomposition mechanisms. The application of this initial thermochemical decomposition step to several alanate compounds illustrates the generality of this approach. For LiAlH4, the decomposition data fall on the derived distribution plot calculated for NaAlH4.
Date:
November 23, 2004
Creator:
WALTERS, R
Object Type:
Report
System:
The UNT Digital Library
Health Benefits for Members of Congress
This report covers health benefits and initiatives for federal government employees.
Date:
November 23, 2004
Creator:
English, Barbara
Object Type:
Report
System:
The UNT Digital Library
Implementing the Conservation Security Program
This report discusses the Conservation Security Program (CSP), which is a agricultural conservation program created in the 2002 farm bill (P.L. 107-171, §2001). It provides incentives for farmers to pursue conservation and helps pay for conservation practices. Unlike some other NRCS programs, it pays for conservation on land that remains in production and makes eligible a wide range of farm lands (cropland, pastureland, rangeland, grassland, prairie land, tribal lands, and forested lands incidental to an agricultural operation)
Date:
November 23, 2004
Creator:
Johnson, Barbara
Object Type:
Report
System:
The UNT Digital Library
Initial scientific uses of coherent synchrotron radiation inelectron storage rings
The production of stable, high power, coherent synchrotron radiation at sub-terahertz frequency at the electron storage ring BESSY opens a new region in the electromagnetic spectrum to explore physical properties of materials. Just as conventional synchrotron radiation has been a boon to x-ray science, coherent synchrotron radiation may lead to many new innovations and discoveries in THz physics. With this new accelerator-based radiation source we have been able to extend traditional infrared measurements down into the experimentally poorly accessible sub-THz frequency range. The feasibility of using the coherent synchrotron radiation in scientific applications was demonstrated in a series of experiments: We investigated shallow single acceptor transitions in stressed and unstressed Ge:Ga by means of photoconductance measurements below 1 THz. We have directly measured the Josephson plasma resonance in optimally doped Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} for the first time and finally we succeeded to confine the sub-THz radiation for spectral near-field imaging on biological samples such as leaves and human teeth.
Date:
November 23, 2004
Creator:
Basov, D. N.; Feikes, J.; Fried, D.; Holldack, K.; Hubers, H. W.; Kuske, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Iraq Reconstruction Resources: Fact Sheet
This fact sheet provides Internet links to the federal agencies or departments currently involved in the contracting process, along with their specific Iraq reconstruction programs underway or proposed. It provides overview information on federal agency contract solicitations, application procedures, and contact information where appropriate.
Date:
November 23, 2004
Creator:
Waterhouse, Michael & Smith, Carolyn C.
Object Type:
Report
System:
The UNT Digital Library
Local indium segregation and band structure in high efficiencygreen light emitting InGaN/GaN diodes
GaN/InGaN light emitting diodes (LEDs) are commercialized for lighting applications because of the cost efficient way that they produce light of high brightness. Nevertheless, there is significant room for improving their external emission efficiency from typical values below 10 percent to more than 50 percent, which are obtainable by use of other materials systems that, however, do not cover the visible spectrum. In particular, green-light emitting diodes fall short in this respect, which is troublesome since the human eye is most sensitive in this spectral range. In this letter advanced electron microscopy is used to characterize indium segregation in InGaN quantum wells of high-brightness, green LEDs (with external quantum efficiency as high as 15 percent at 75 A/cm2). Our investigations reveal the presence of 1-3 nm wide indium rich clusters in these devices with indium concentrations as large as 0.30-0.40 that narrow the band gap locally to energies as small as 2.65 eV.
Date:
November 23, 2004
Creator:
Jinschek, Joerg R.; Erni, Rolf; Gardner, Nathan F.; Kim, AndrewY. & Kisielowski, Christian
Object Type:
Article
System:
The UNT Digital Library
Market failures, consumer preferences, and transaction costs inenergy efficiency purchase decisions
Several factors limit the energy savings potential and increase the costs of energy-efficient technologies to consumers. These factors may usefully be placed into two categories; one category is what economists would define as market failures and the other is related to consumer preferences. This paper provides a conceptual framework for understanding the roles of these factors, and develops a methodology to quantify their effects on costs and potentials of two energy efficient end uses - residential lighting and clothes washers. It notes the significant roles played by the high implicit cost of obtaining information about the benefits of the two technologies and the apparent inability to process and utilize information. For compact fluorescent lamps, this report finds a conservative estimate of the cost of conserved energy of 3.1 cents per kWh. For clothes washers, including water savings reduces the cost of conserved energy from 13.6 cents to 4.3 cents per equivalent kWh. Despite these benefits, market share remains low. About 18 million tons of CO2 could be saved cost effectively from 2005 sales of these two technologies alone. The paper also notes that trading of carbon emissions will incur transaction costs that will range from less than 10 cents per …
Date:
November 23, 2004
Creator:
Sathaye, Jayant & Murtishaw, Scott
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Plano Baby Death]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
November 23, 2004
Creator:
NBC 5 (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 88, No. 68, Ed. 1 Tuesday, November 23, 2004
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 23, 2004
Creator:
Warren, Lee B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
On the Effect of Local Grain-Boundary Chemistry on the Macroscopic Mechanical Properties of a High Purity Y2O3-Al2O3-Containing Silicon Nitride Ceramic: Role of Oxygen
The effects of grain-boundary chemistry on the mechanical properties were investigated on high-purity silicon nitride ceramics, specifically involving the role of oxygen. Varying the grain-boundary oxygen content, by control of oxidizing heat treatments and sintering additives, was found to result in a transition in fracture mechanism from transgranular to intergranular fracture, with an associated increase in fracture toughness. This phenomenon is correlated to an oxygen-induced change in grain-boundary chemistry that appears to affect fracture by ''weakening'' the interface, facilitating debonding and crack advance along the boundaries, and consequently toughening by grain bridging. It is concluded that if the oxygen content in the thin grain-boundary films exceeds a lower limit, which is {approx}0.87 equiv% oxygen content, then the interfacial structure and bonding characteristics favor intergranular debonding during crack propagation; otherwise, transgranular fracture ensues.
Date:
November 23, 2004
Creator:
Ziegler, A; McNaney, J M; Hoffman, M J & Ritchie, R O
Object Type:
Article
System:
The UNT Digital Library
Optical injection probing of single ZnO tetrapod lasers
The properties of zinc oxide (ZnO) nanotetrapod lasers are characterized by a novel ultrafast two-color pump/stimulated emission probe technique. Single legs of tetrapod species are isolated by a microscope objective, pumped by 267 nm pulses, and subjected to a time-delayed 400 nm optical injection pulse, which permits investigation of the ultrafast carrier dynamics in the nanosize materials. With the optical injection pulse included, a large increase in the stimulated emission at 400 nm occurs, which partially depletes the carriers at this wavelength and competes with the normal 390 nm lasing. At the 390 nm lasing wavelengths, the optical injection causes a decrease in the stimulated emission due to the energetic redistribution of the excited carrier depletion, which occurs considerably within the time scale of the subpicosecond duration of the injection pulse. The effects of the optical injection on the spectral gain are employed to probe the lasing dynamics, which shows that the full width at half maximum of the lasing time is 3 ps.
Date:
November 23, 2004
Creator:
Szarko, Jodi M.; Song, Jae Kyu; Blackledge, Charles Wesley; Swart, Ingmar; Leone, Stephen R.; Li, Shihong et al.
Object Type:
Article
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 111, No. 224, Ed. 1 Tuesday, November 23, 2004
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 23, 2004
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Privileged Business on the House Floor
None
Date:
November 23, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Protecting Seniors from Fraud Act: Status of the Triad Program
Correspondence issued by the Government Accountability Office with an abstract that begins "The Protecting Seniors from Fraud Act of 2000 directed the Comptroller General to submit a report to Congress on the effectiveness of the Triad program by April 4, 2005. The program, sponsored at the national level by the National Sheriffs' Association (NSA), provides advice, training, and technical assistance to communitybased crime prevention programs for senior citizens but does not fund them. These community-based groups typically are partnerships among local law enforcement officials, seniors, and sometimes other community members to develop and expand crime prevention programs for seniors in their communities. NSA has sponsored the Triad program with funds provided by various Department of Justice (DOJ) grants. The act's provisions included support for the Triad senior fraud prevention program, the dissemination of information to states to raise awareness about the dangers of telemarketing and sweepstakes fraud, and mandates to study crimes against seniors and to collect statistics on crimes disproportionately affecting seniors. With regard to our report, the act specified that it include an analysis of the Triad program and activities, identify impediments to establishing community-based Triad groups across the nation, and make recommendations to improve the effectiveness of …
Date:
November 23, 2004
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library