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The Altus Times (Altus, Okla.), Vol. 112, No. 90, Ed. 1 Sunday, April 11, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 11, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Master's Recital: 2010-04-11 - Alejandro A. Tellez-Vargas, piano
Access:
Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date:
April 11, 2010
Creator:
Tellez-Vargas, Alejandro A.
Object Type:
Sound
System:
The UNT Digital Library
Master's Recital: 2010-04-11 - Kathryn Summersett, soprano
Access:
Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Organ Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date:
April 11, 2010
Creator:
Summersett, Kathryn
Object Type:
Sound
System:
The UNT Digital Library
Methodology Development and Applications of Proliferation Resistance and Physical Protection Evaluation.
We present an overview of the program on the evaluation methodology for proliferation resistance and physical protection (PR&PP) of advanced nuclear energy systems (NESs) sponsored by the Generation IV International Forum (GIF). For a proposed NES design, the methodology defines a set of challenges, analyzes system response to these challenges, and assesses outcomes. The challenges to the NES are the threats posed by potential actors (proliferant States or sub-national adversaries). The characteristics of Generation IV systems, both technical and institutional, are used to evaluate the response of the system and to determine its resistance against proliferation threats and robustness against sabotage and terrorism threats. The outcomes of the system response are expressed in terms of a set of measures, which are the high-level PR&PP characteristics of the NES. The methodology is organized to allow evaluations to be performed at the earliest stages of system design and to become more detailed and more representative as the design progresses. It can thus be used to enable a program in safeguards by design or to enhance the conceptual design process of an NES with regard to intrinsic features for PR&PP.
Date:
April 11, 2010
Creator:
Bari, R. A.; Peterson, P. F.; Whitlock, J. J. & Therios, I. U.
Object Type:
Article
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 138, No. 29, Ed. 1 Sunday, April 11, 2010
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
April 11, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 128, No. 29, Ed. 1 Sunday, April 11, 2010
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
April 11, 2010
Creator:
Reddell, Valerie
Object Type:
Newspaper
System:
The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 95, No. 148, Ed. 1 Sunday, April 11, 2010
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 11, 2010
Creator:
Shance, Brenda
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Senior Recital: 2010-04-11 - Chris Kim, double bass
Access:
Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Bachelor of Music (BM) degree.
Date:
April 11, 2010
Creator:
Kim, Chris
Object Type:
Sound
System:
The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 112, No. 125, Ed. 1 Sunday, April 11, 2010
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
April 11, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Views of the April 11, 2010 Memorial Service for Compatriot Willie Walker
Webpage from McKinney TXSSAR website containing photographs from a memorial service for compatriot Willie Walker on April 11, 2010.
Date:
April 11, 2010
Creator:
Texas Society Sons of the American Revolution, McKinney Chapter 63
Object Type:
Website
System:
The UNT Digital Library
Ab Initio No-Core Shell Model
A long-standing goal of nuclear theory is to determine the properties of atomic nuclei based on the fundamental interactions among the protons and neutrons (i.e., nucleons). By adopting nucleon-nucleon (NN), three-nucleon (NNN) and higher-nucleon interactions determined from either meson-exchange theory or QCD, with couplings fixed by few-body systems, we preserve the predictive power of nuclear theory. This foundation enables tests of nature's fundamental symmetries and offers new vistas for the full range of complex nuclear phenomena. Basic questions that drive our quest for a microscopic predictive theory of nuclear phenomena include: (1) What controls nuclear saturation; (2) How the nuclear shell model emerges from the underlying theory; (3) What are the properties of nuclei with extreme neutron/proton ratios; (4) Can we predict useful cross sections that cannot be measured; (5) Can nuclei provide precision tests of the fundamental laws of nature; and (6) Under what conditions do we need QCD to describe nuclear structure, among others. Along with other ab initio nuclear theory groups, we have pursued these questions with meson-theoretical NN interactions, such as CD-Bonn and Argonne V18, that were tuned to provide high-quality descriptions of the NN scattering phase shifts and deuteron properties. We then add meson-theoretic NNN …
Date:
April 11, 2011
Creator:
Barrett, B R; Navratil, P & Vary, J P
Object Type:
Article
System:
The UNT Digital Library
ALLOYING-DRIVEN PHASE STABILITY IN GROUP-VB TRANSITION METALS UNDER COMPRESSION
The change in phase stability of Group-VB (V, Nb, and Ta) transition metals due to pressure and alloying is explored by means of first-principles electronic-structure calculations. It is shown that under compression stabilization or destabilization of the ground-state body-centered cubic (bcc) phase of the metal is mainly dictated by the band-structure energy that correlates well with the position of the Kohn anomaly in the transverse acoustic phonon mode. The predicted position of the Kohn anomaly in V, Nb, and Ta is found to be in a good agreement with data from the inelastic x-ray or neutron scattering measurements. In the case of alloying the change in phase stability is defined by the interplay between the band-structure and Madelung energies. We show that band-structure effects determine phase stability when a particular Group-VB metal is alloyed with its nearest neighbors within the same d-transition series: the neighbor with less and more d electrons destabilize and stabilize the bcc phase, respectively. When V is alloyed with neighbors of a higher (4d- or 5d-) transition series, both electrostatic Madelung and band-structure energies stabilize the body-centered-cubic phase. The opposite effect (destabilization) happens when Nb or Ta is alloyed with neighbors of the 3d-transition series.
Date:
April 11, 2011
Creator:
Landa, A & Soderlind, P
Object Type:
Article
System:
The UNT Digital Library
Analysis of 1w Bulk Laser Damage in KDP
The influence of laser parameters on laser-induced damage in the bulk of KDP is difficult to determine because the damage manifests as discrete sites a few microns in diameter distributed throughout a relatively large volume of material. Here, they present a method to directly measure the size and location of many thousands of such sites and correlate them to the laser conditions which produced them. This technique is used to characterize the effects of pulse duration on damage initiated by 1053 nm light in the bulk of KDP crystals. They find that the density of damage sites produced by 1053 nm light is less sensitive to pulse duration than was previously reported for 526 nm and 351 nm light. In addition, the effect of pulse duration on the size of the damage sites produced appears insensitive to wavelength.
Date:
April 11, 2011
Creator:
Cross, D A & Carr, C W
Object Type:
Article
System:
The UNT Digital Library
ARM MJO Investigation Experiment on Gan Island (AMIE-Gan) Science Plan
The overarching campaign, which includes the ARM Mobile Facility 2 (AMF2) deployment in conjunction with the Dynamics of the Madden-Julian Oscillation (DYNAMO) and the Cooperative Indian Ocean experiment on intraseasonal variability in the Year 2011 (CINDY2011) campaigns, is designed to test several current hypotheses regarding the mechanisms responsible for Madden-Julian Oscillation (MJO) initiation and propagation in the Indian Ocean area. The synergy between the proposed AMF2 deployment with DYNAMO/CINDY2011, and the corresponding funded experiment on Manus, combine for an overarching ARM MJO Investigation Experiment (AMIE) with two components: AMF2 on Gan Island in the Indian Ocean (AMIE-Gan), where the MJO initiates and starts its eastward propagation; and the ARM Manus site (AMIE-Manus), which is in the general area where the MJO usually starts to weaken in climate models. AMIE-Gan will provide measurements of particular interest to Atmospheric System Research (ASR) researchers relevant to improving the representation of MJO initiation in climate models. The framework of DYNAMO/CINDY2011 includes two proposed island-based sites and two ship-based locations forming a square pattern with sonde profiles and scanning precipitation and cloud radars at both island and ship sites. These data will be used to produce a Variational Analysis data set coinciding with the one …
Date:
April 11, 2011
Creator:
Long, C. L.; Del Genio, A.; Deng, M.; Fu, X.; Gustafson, W.; Houze, R. et al.
Object Type:
Text
System:
The UNT Digital Library
Atmospheric Radiation Measurement Program Climate Research Facility Operations Quarterly Report January 1–March 31, 2011
Individual raw datastreams from instrumentation at the Atmospheric Radiation Measurement (ARM) Climate Research Facility fixed and mobile sites are collected and sent to the Data Management Facility (DMF) at Pacific Northwest National Laboratory (PNNL) for processing in near real-time. Raw and processed data are then sent approximately daily to the ARM Data Archive, where they are made available to users. For each instrument, we calculate the ratio of the actual number of processed data records received daily at the Data Archive to the expected number of data records. The results are tabulated by (1) individual datastream, site, and month for the current year and (2) site and fiscal year (FY) dating back to 1998.
Date:
April 11, 2011
Creator:
Sisterson, DL
Object Type:
Text
System:
The UNT Digital Library
Bismuth-Loaded Polymer Scintillators for Gamma Ray Spectroscopy
We synthesize a series of polyvinylcarbazole monoliths containing varying loadings of triphenyl bismuth as a high-Z dopant and varying fluors, either organic or organometallic, in order to study their use as scintillators capable of gamma ray spectroscopy. A trend of increasing bismuth loading resulting in a better-resolved photopeak is observed. For PVK parts with no fluor or a standard organic fluor, diphenylanthracene, increasing bismuth loading results in decreasing light yield while with samples 1 or 3 % by weight of the spin-orbit coupling organometallic fluor FIrpic, which emits light from both singlet and triple excitons, show increasing light yield with increasing bismuth loading. Our best performing PVK/ BiPh{sub 3}/FIrpic scintillator with 40 wt % BiPh3 and 3 wt % FIrpic has an emission maximum of 500 nm, a light yield of {approx}30,000 photons/MeV, and energy resolution better than 7% FWHM at 662 keV. Replacing the Ir complex with an equal weight of diphenylanthracene produces a sample with a light yield of {approx}6,000 photons/MeV, with an emission maximum at 420 nm and energy resolution of 9% at 662 keV. Transmission electron microscopy studies show that the BiPh{sub 3} forms small clusters of approximately 5 nm diameter.
Date:
April 11, 2011
Creator:
Rupert, B L; Cherepy, N J; Sturm, B W; Sanner, R D; Dai, Z & Payne, S A
Object Type:
Article
System:
The UNT Digital Library
BULK VITRIFICATION TECHNOLOGY FOR THE TREATMENT AND IMMOBILIZATION OF LOW-ACTIVITY WASTE
This report is one of four reports written to provide background information regarding immobilization technologies under consideration for supplemental immobilization of Hanford's low-activity waste. This paper is intended to provide the reader with general understanding of Bulk Vitrification and how it might be applied to immobilization of Hanford's low-activity waste.
Date:
April 11, 2011
Creator:
KE, ARD
Object Type:
Report
System:
The UNT Digital Library
Child Support Enforcement and Driver’s License Suspension Policies
This report provides basic information on the CSE program, describes the ways in which states have implemented driver's license suspension policies, provides existing data on the amounts collected through driver's license suspension policies, and discusses some concerns regarding the use of driver's license suspension as a CSE program tool.
Date:
April 11, 2011
Creator:
Solomon-Fears, Carmen
Object Type:
Report
System:
The UNT Digital Library
Collaborative Strategies for Digital Preservation of Newspapers
This presentation discusses collaborative strategies for the digital preservation of newspapers. The University of North Texas (UNT) Texas Digital Newspaper Program (TDNP), the MetaArchive Cooperative, and the Chronicles in Preservation Project are discussed with information on what they do, the importance of newspaper digitization projects, and how collaboration can further efforts in this area.
Date:
April 11, 2011
Creator:
Halbert, Martin
Object Type:
Presentation
System:
The UNT Digital Library
Computational Modeling and Assessment Of Nanocoatings for Ultra Supercritical Boilers
Forced outages and boiler unavailability in conventional coal-fired fossil power plants is most often caused by fireside corrosion of boiler waterwalls. Industry-wide, the rate of wall thickness corrosion wastage of fireside waterwalls in fossil-fired boilers has been of concern for many years. It is significant that the introduction of nitrogen oxide (NOx) emission controls with staged burners systems has increased reported waterwall wastage rates to as much as 120 mils (3 mm) per year. Moreover, the reducing environment produced by the low-NOx combustion process is the primary cause of accelerated corrosion rates of waterwall tubes made of carbon and low alloy steels. Improved coatings, such as the MCrAl nanocoatings evaluated here (where M is Fe, Ni, and Co), are needed to reduce/eliminate waterwall damage in subcritical, supercritical, and ultra-supercritical (USC) boilers. The first two tasks of this six-task project-jointly sponsored by EPRI and the U.S. Department of Energy (DE-FC26-07NT43096)-have focused on computational modeling of an advanced MCrAl nanocoating system and evaluation of two nanocrystalline (iron and nickel base) coatings, which will significantly improve the corrosion and erosion performance of tubing used in USC boilers. The computational model results showed that about 40 wt.% is required in Fe based nanocrystalline coatings …
Date:
April 11, 2011
Creator:
Gandy, David W. & Shingledecker, John P.
Object Type:
Text
System:
The UNT Digital Library
Core-Based Integrated Sedimentologic, Stratigraphic, and Geochemical Analysis of the Oil Shale Bearing Green River Formation, Uinta Basin, Utah
An integrated detailed sedimentologic, stratigraphic, and geochemical study of Utah's Green River Formation has found that Lake Uinta evolved in three phases (1) a freshwater rising lake phase below the Mahogany zone, (2) an anoxic deep lake phase above the base of the Mahogany zone and (3) a hypersaline lake phase within the middle and upper R-8. This long term lake evolution was driven by tectonic basin development and the balance of sediment and water fill with the neighboring basins, as postulated by models developed from the Greater Green River Basin by Carroll and Bohacs (1999). Early Eocene abrupt global-warming events may have had significant control on deposition through the amount of sediment production and deposition rates, such that lean zones below the Mahogany zone record hyperthermal events and rich zones record periods between hyperthermals. This type of climatic control on short-term and long-term lake evolution and deposition has been previously overlooked. This geologic history contains key points relevant to oil shale development and engineering design including: (1) Stratigraphic changes in oil shale quality and composition are systematic and can be related to spatial and temporal changes in the depositional environment and basin dynamics. (2) The inorganic mineral matrix of …
Date:
April 11, 2011
Creator:
Birgenheier, Lauren P. & Michael D. Vanden Berg,
Object Type:
Text
System:
The UNT Digital Library
Digitization 101
This document discusses digitization processes, including computer hardware, setting up the computer with Windows XP, setting up Windows 7 for digital projects, identifiers, folder management, standards, scanning, and digital preservation.
Date:
April 11, 2011
Creator:
Phillips, Mark Edward; Moore, Jeremy D. & Hall, Nathan
Object Type:
Text
System:
The UNT Digital Library
Doctoral Recital: 2011-04-11 - Jennifer Ann Hemken, horn and natural horn
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
April 11, 2011
Creator:
Hemken, Jennifer Ann
Object Type:
Sound
System:
The UNT Digital Library
Emissions Scenarios, Costs, and Implementation Considerations of REDD Programs
Greenhouse gas emissions from the forestry sector are estimated to be 8.4 GtCO2-eq./year or about 17percent of the global emissions. We estimate that the cost forreducing deforestation is low in Africa and several times higher in Latin America and Southeast Asia. These cost estimates are sensitive to the uncertainties of how muchunsustainable high-revenue logging occurs, little understood transaction and program implementation costs, and barriers to implementation including governance issues. Due to lack of capacity in the affected countries, achieving reduction or avoidance of carbon emissions will require extensive REDD-plus programs. Preliminary REDD-plus Readiness cost estimates and program descriptions for Indonesia, Democratic Republic of the Congo, Ghana, Guyana and Mexico show that roughly one-third of potential REDD-plus mitigation benefits might come from avoided deforestation and the rest from avoided forest degradation and other REDD-plus activities.
Date:
April 11, 2011
Creator:
Sathaye, Jayant; Andrasko, Ken & Chan, Peter
Object Type:
Article
System:
The UNT Digital Library