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[TDNA Linage Report "B," May 2008]
Linage report from May 2008 that details ad revenue from Texas Daily Newspaper Association members.
Date:
March 24, 2008
Creator:
Texas Daily Newspaper Association
Object Type:
Dataset
System:
The UNT Digital Library
[Letter from Gary Borders to Keven Ann Willey, March 24, 2008]
Letter from Gary Borders, President of TDNA to Keven Ann Willey, congratulating Willey on being the 2007 winner of the Frank Mayborn Award for community leadership.
Date:
March 24, 2008
Creator:
Borders, Gary
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Gary Borders to Neice Bell, March 24, 2008]
Letter from Gary Borders, President of TDNA, to Neice Bell, Publisher at The Seguin Gazette-Enterprise. The letter is in regards to Borders congratulating Neice on her newspaper winning the Bright Idea Award presented at the TDNA's 87th Annual Meeting.
Date:
March 24, 2008
Creator:
Borders, Gary
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Gary Borders to Paul C. Watler, March 24, 2008]
Letter from Gary Borders, President of TDNA, to Paul C. Watler, on March 24, 2008. The letter is on behalf of the officers and directors of TDNA who want to express their appreciation that Watler was part of the TDNA's 2008 Annual meeting.
Date:
March 24, 2008
Creator:
Borders, Gary
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Gary Borders to Nelson Clyde IV, March 24, 2008]
Letter from Gary Borders, President at TDNA, to Nelson Clyde IV, Publisher at the Tyler Morning Telegraph, on March 24, 2008. The letter is in regards to Borders thanking Clyde for presiding the morning session at TDNA's 87th Annual Meeting.
Date:
March 24, 2008
Creator:
Borders, Gary
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Gary Borders to Darrell Coleman, March 24, 2008]
Letter from Gary Borders, President at TDNA, to Darrell Coleman, President and Publisher at the Wichita Falls Times Record News, on March 24, 2008. The letter is in regards to Borders thanking Coleman for presiding the morning session at TDNA's 87th Annual Meeting.
Date:
March 24, 2008
Creator:
Borders, Gary
Object Type:
Letter
System:
The UNT Digital Library
[Email from Daniel Graney to Al Daniels]
Email from Daniel Graney to Al Daniels on March 24, 2009, discussing Houston Stonewall Young Democrats financial sources and dues.
Date:
March 24, 2009
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 129, No. 43, Ed. 1 Thursday, March 24, 2005
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
March 24, 2005
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 37, No. 83, Ed. 1 Friday, March 24, 2006
Free weekly newspaper that includes business and classified advertising.
Date:
March 24, 2006
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Environmental Management System Plan
Executive Order 13423, Strengthening Federal Environmental, Energy, and Transportation Management establishes the policy that Federal agencies conduct their environmental, transportation, and energy-related activities in a manner that is environmentally, economically and fiscally sound, integrated, continually improving, efficient, and sustainable. The Department of Energy (DOE) has approved DOE Order 450.1A, Environmental Protection Program and DOE Order 430.2B, Departmental Energy, Renewable Energy and Transportation Management as the means of achieving the provisions of this Executive Order. DOE Order 450.1A mandates the development of Environmental Management Systems (EMS) to implement sustainable environmental stewardship practices that: (1) Protect the air, water, land, and other natural and cultural resources potentially impacted by facility operations; (2) Meet or exceed applicable environmental, public health, and resource protection laws and regulations; and (3) Implement cost-effective business practices. In addition, the DOE Order 450.1A mandates that the EMS must be integrated with a facility's Integrated Safety Management System (ISMS) established pursuant to DOE P 450.4, 'Safety Management System Policy'. DOE Order 430.2B mandates an energy management program that considers energy use and renewable energy, water, new and renovated buildings, and vehicle fleet activities. The Order incorporates the provisions of the Energy Policy Act of 2005 and Energy Independence and …
Date:
March 24, 2009
Creator:
Fox, Robert; Thorson, Patrick; Horst, Blair; Speros, John; Rothermich, Nancy & Hatayama, Howard
Object Type:
Report
System:
The UNT Digital Library
Post-Closure Inspection Letter Report for Corrective Action Units on the Nevada Test Site
None
Date:
March 24, 2009
Creator:
National Security Technologies, LLC
Object Type:
Report
System:
The UNT Digital Library
A Spatially Resolving X-ray Crystal Spectrometer for Measurement of Ion-temperature and Rotation-velocity Profiles on the AlcatorC-Mod Tokamak
A new spatially resolving x-ray crystal spectrometer capable of measuring continuous spatial profiles of high resolution spectra (λ/dλ > 6000) of He-like and H-like Ar Kα lines with good spatial (~1 cm) and temporal (~10 ms) resolutions has been installed on the Alcator C-Mod tokamak. Two spherically bent crystals image the spectra onto four two-dimensional Pilatus II pixel detectors. Tomographic inversion enables inference of local line emissivity, ion temperature (Ti), and toroidal plasma rotation velocity (vφ) from the line Doppler widths and shifts. The data analysis techniqu
Date:
March 24, 2009
Creator:
Hill, K. W.; Bitter, M. L.; Scott, S. D.; Ince-Cushman, A.; Reinke, M.; Rice, J. E. et al.
Object Type:
Report
System:
The UNT Digital Library
RAPID MEASUREMENTS OF NEPTUNIUM OXIDATION STATES USING CHROMATOGRAPHIC RESINS
The Savannah River Site's (SRS) H-Canyon facility uses ceric ammonium nitrate (CAN) to separate impure neptunium (Np) from a high sulfate feed stream. The material is processed using a two-pass solvent extraction purification which relies on CAN to oxidize neptunium to Np(VI) during the first pass prior to extraction. Spectrophotometric oxidation-state analyses normally used to validate successful oxidation to Np(VI) prior to extraction were compromised by this feed stream matrix. Therefore, a rapid chromatographic method to validate successful Np oxidation was developed using Eichrom Industries TRU and TEVA{reg_sign} resins. The method was validated and subsequently transferred to existing operations in the process analytical laboratories.
Date:
March 24, 2009
Creator:
Diprete, D; C Diprete, C; Mira Malek, M & Eddie Kyser, E
Object Type:
Article
System:
The UNT Digital Library
CZT Virtual Frisch-grid Detector: Principles and Applications
Cadmium Zinc Telluride (CdZnTe or CZT) is a very attractive material for using as room-temperature semiconductor detectors, because it has a wide bandgap and a high atomic number. However, due to the material's poor hole mobility, several special techniques were developed to ensure its suitability for radiation detection. Among them, the virtual Frisch-grid CZT detector is an attractive option, having a simple configuration, yet delivering an outstanding spectral performance. The goal of our group in Brookhaven National Laboratory (BNL) is to improve the performance of Frisch-ring CZT detectors; most recently, that effort focused on the non-contacting Frisch-ring detector, allowing us to build an inexpensive, large-volume detector array with high energy-resolution and a large effective area. In this paper, the principles of virtual Frisch-grid detectors are described, especially BNL's innovative improvements. The potential applications of virtual Frisch-grid detectors are discussed, and as an example, a hand-held gamma-ray spectrometer using a CZT virtual Frischgrid detector array is introduced, which is a self-contained device with a radiation detector, readout circuit, communication circuit, and high-voltage supply. It has good energy resolution of 1.4% (FWHM of 662-keV peak) with a total detection volume of {approx}20 cm{sup 3}. Such a portable inexpensive device can be used …
Date:
March 24, 2009
Creator:
Cui,Y.; Bolotnikov, A.; Camarda, G.; Hossain, A. & James, R. B.
Object Type:
Article
System:
The UNT Digital Library
A dedicated superbend x-ray microdiffraction beamline for materials, geo-, and environmental sciences at the advanced light source
A new facility for microdiffraction strain measurements and microfluorescence mapping has been built on beamline 12.3.2 at the advanced light source of the Lawrence Berkeley National Laboratory. This beamline benefits from the hard x-radiation generated by a 6 T superconducting bending magnet (superbend) This provides a hard x-ray spectrum from 5 to 22 keV and a flux within a 1 mu m spot of ~;;5x109 photons/ s (0.1percent bandwidth at 8 keV). The radiation is relayed from the superbend source to a focus in the experimental hutch by a toroidal mirror. The focus spot is tailored bytwo pairs of adjustable slits, which serve as secondary source point. Inside the lead hutch, a pair of Kirkpatrick-Baez (KB) mirrors placed in a vacuum tank refocuses the secondary slit source onto the sample position. A new KB-bending mechanism with active temperature stabilization allows for more reproducible and stable mirror bending and thus mirror focusing. Focus spots around 1 um are routinely achieved and allow a variety of experiments, which have in common the need of spatial resolution. The effective spatial resolution (~;;0.2 mu m) is limited by a convolution of beam size, scan-stage resolution, and stage stability. A four-bounce monochromator consisting of two …
Date:
March 24, 2009
Creator:
Lawrence Berkeley National Laboratory. Advanced Light Source.
Object Type:
Article
System:
The UNT Digital Library
DOE A9024 Final Report Functional and Nanoscale Materials Systems: Frontier Programs of Science at the Frederick Seitz Materials Research Laboratory
The scientific programs of the FSMRL supported under the DOE A9024 Grant consisted of four interdisciplinary research clusters, as described. The clusters were led by Professors Tai Chiang (Physics), Jeffrey Moore (Chemistry), Paul Goldbart (Physics), and Steven Granick (Materials Science and Engineering). The completed work followed a dominant theme--Nanoscale Materials Systems--and emphasized studies of complex phenomena involving surfaces, interfaces, complex materials, dynamics, energetics, and structures and their transformations. A summary of our key accomplishments is provided for each cluster.
Date:
March 24, 2009
Creator:
Lewis, Jennifer A.
Object Type:
Report
System:
The UNT Digital Library
Entering the Executive Branch of Government: Potential Conflicts of Interest With Previous Employments and Affiliations
This report examines the federal laws and regulations relevant to entering into Government employment from the private sector. It is intended to provide those conducting congressional oversight with an outline of some of the issues, rules, regulations, ad oversight tools that may be available regarding this subject.
Date:
March 24, 2003
Creator:
Maskell, Jack
Object Type:
Report
System:
The UNT Digital Library
[Letter from Gary Borders to Jim Wilson, March 24, 2008]
Letter from Gary Borders, President of TDNA to Jim Wilson, Publisher at Bryan-College Station Eagle congratulating Wilson on his paper winning the Bright Idea Award. The award was presented at the TDNA's 87th Annual Meeting in San Antonio; Borders writes that they are sorry Wilson was not able to accept the plaque in person.
Date:
March 24, 2008
Creator:
Borders, Gary
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Gary Borders to Gurjit Chima, March 24, 2008]
Letter from Gary Borders, President of TDNA to Gurjit Chima, Executive Director at the Public Notice Resource Center, on March 24, 2008. The letter is in regards on behalf of the officers and directors of TDNA wanting to express their appreciation for Chima for participating at TDNA's 87th Annual Meeting.
Date:
March 24, 2008
Creator:
Borders, Gary
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Gary Borders to Lauren Rich Fine, March 24, 2008]
Letter from Gary Borders, President of TDNA, to Lauren Rich Fine, Practitioner in residence at Kent State University, March 24, 2008. The letter is on behalf of the officers and the directors of TDNA, wanting to express their appreciation for Fine's participation on TDNA's 87 Annual Meeting.
Date:
March 24, 2008
Creator:
Borders, Gary
Object Type:
Letter
System:
The UNT Digital Library
The development of a ductility-based aging model for low temperature aged U-6Nb alloy
This study focuses on the ductility evaluation of low-temperature (100 and 200 C) aged U-6Nb alloy. The objective is to develop a ductility-based aging model to improve lifetime prediction for weapon components in the stockpile environment. Literature review shows that the work hardening n-value and the strain-rate hardening mvalue are the two most important metallurgical factors for the uniform and the post-uniform (necking) ductility control, respectively. Unfortunately, both n and m values of the U-6Nb alloy are lacking. The study shows that the total ductility of U-6Nb is dominated by the uniform ductility, which deteriorates in both 100 C and 200 C aging. Further analysis shows that the uniform ductility correlates well with the work hardening n-value of the later stage deformation in which dislocation-slip is the mechanism. The kinetics of the loss of uniform ductility and the associated reduction in work-hardening n-value in low temperature aging will be used for the development of a ductility-based aging model. The necking ductility appears to be a minor but significant factor in the total ductility of U-6Nb. It does not show a clear trend due to large data scatter. The uncertain nature of necking failure may always hinder a reliable measurement of …
Date:
March 24, 2005
Creator:
Bridges, B
Object Type:
Article
System:
The UNT Digital Library
Experimental characterization of initial conditions and spatio-temporal evolution of a small Atwood number Rayleigh-Taylor mixing layer
The initial multi-mode interfacial velocity and density perturbations present at the onset of a small Atwood number, incompressible, miscible, Rayleigh-Taylor instability-driven mixing layer have been quantified using a combination of experimental techniques. The streamwise interfacial and spanwise interfacial perturbations were measured using high-resolution thermocouples and planar laser-induced fluorescence (PLIF), respectively. The initial multi-mode streamwise velocity perturbations at the two-fluid density interface were measured using particle-image velocimetry (PIV). It was found that the measured initial conditions describe an initially anisotropic state, in which the perturbations in the streamwise and spanwise directions are independent of one another. The evolution of various fluctuating velocity and density statistics, together with velocity and density variance spectra, were measured using PIV and high-resolution thermocouple data. The evolution of the velocity and density statistics is used to investigate the early-time evolution and the onset of strongly-nonlinear, transitional dynamics within the mixing layer. The early-time evolution of the density and vertical velocity variance spectra indicate that velocity fluctuations are the dominant mechanism driving the instability development. The implications of the present experimental measurements on the initialization of Reynolds-averaged turbulent transport and mixing models and of direct and large-eddy simulations of Rayleigh-Taylor instability-induced turbulence are discussed.
Date:
March 24, 2006
Creator:
Mueschke, N J; Andrews, M J & Schilling, O
Object Type:
Article
System:
The UNT Digital Library
Structural Investigations of Complex Oxides using Synchrotron Radiation
The work is a collaborative effort between Prof. Hanno zur Loye at the University of South Carolina and Dr. Tom Vogt at Brookhaven National Laboratory. The collaborative research focuses on the synthesis and the structural characterization of perovskites and perovskite related oxides and will target new oxide systems where we have demonstrated expertise in synthesis, yet lack the experimental capabilities to answer important structural issues. Synthetically, we will focus on two subgroups of perovskite structures, the double and triple perovskites, and the 2H-perovskite related oxides belonging to the A3n+3mA’nB3m+nO9m+6n family. In the first part of the proposal, our goal of synthesizing and structurally characterizing new ruthenium, iridium, rhodium and ruthenium containing double and triple perovskites, with the emphasis on exercising control over the oxidation state(s) of the metals, is described. These oxides will be of interest for their electronic and magnetic properties that will be investigated as well.
Date:
March 24, 2007
Creator:
Loye, Hans-Conrad zur
Object Type:
Report
System:
The UNT Digital Library
Graphene Layer Growth Chemistry: Five-Six-Ring Flip Reaction
A theoretical study revealed a new reaction pathway, in which a fused five and six-membered ring complex on the zigzag edge of a graphene layer isomerizes to reverse its orientation, or 'flips,' after activation by a gaseous hydrogen atom. The process is initiated by hydrogen addition to or abstraction from the surface complex. The elementary steps of the migration pathway were analyzed using density-functional theory (DFT) calculations to examine the region of the potential energy surface associated with the pathway. The DFT calculations were performed on substrates modeled by the zigzag edges of tetracene and pentacene. Rate constants for the flip reaction were obtained by the solution of energy master equation utilizing the DFT energies, frequencies, and geometries. The results indicate that this reaction pathway is competitive with other pathways important to the edge evolution of aromatic species in high temperature environments.
Date:
March 24, 2007
Creator:
Whitesides, Russell; Domin, Dominik; Lester Jr., William A. & Frenklach, Michael
Object Type:
Article
System:
The UNT Digital Library