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446 Matching Results
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[29th annual "Black Music and the Civil Rights Movement Concert" rehearsal tape 1 of 2]
Video recording from The Black Academy of Arts and Letters recorded during rehearsal for the 29th annual "Black Music and the Civil Rights Movement Concert" held on January 14th, 2012 for the annual concert event to be held on January 15th. The footage shows rehearsal for the choir, band, dancers, and featured vocalist Cece Winans taking place at the Meyerson Symphony Center overseen by producer Curtis King.
Date:
January 14, 2012
Creator:
King, Curtis
Object Type:
Video
System:
The UNT Digital Library
[29th annual "Black Music and the Civil Rights Movement Concert" rehearsal tape 2 of 2]
Video recording from The Black Academy of Arts and Letters recorded during rehearsal for the 29th annual "Black Music and the Civil Rights Movement Concert" held on January 14th, 2012 for the annual concert event to be held on January 15th. The footage shows rehearsal for the choir, band, dancers, and featured vocalist Cece Winans taking place at the Meyerson Symphony Center overseen by producer Curtis King.
Date:
January 14, 2012
Creator:
King, Curtis
Object Type:
Video
System:
The UNT Digital Library
[Aaron Einhouse on stage at John A. Lomax Texas Music Gathering]
Photograph of Aaron Einhouse on stage at the John A. Lomax Texas Music Gathering and Chuckwagon Cook-off. Einhouse can be seen sitting on a stool in the center of the photograph, facing to the left of the camera and looking down. He is holding a guitar. Other individuals can be seen on stage behind him.
Date:
April 14, 2012
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[Aaron Einhouse performs at John A. Lomax Texas Music Gathering]
Photograph of Steven Fromholz (left) and Aaron Einhouse (right) on stage at the John A. Lomax Texas Music Gathering and Chuckwagon Cook-off. The men are sitting side by side, facing to the left of the camera and holding guitars. Fromholz is looking at Einhouse, who is singing and playing guitar.
Date:
April 14, 2012
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
Ab-initio description of quasiparticle band structures and optical near-edge absorption of transparent conducting oxides
None
Date:
February 14, 2012
Creator:
Schleife, A & Bechstedt, F
Object Type:
Article
System:
The UNT Digital Library
Advanced Motors
Project Summary Transportation energy usage is predicted to increase substantially by 2020. Hybrid vehicles and fuel cell powered vehicles are destined to become more prominent as fuel prices rise with the demand. Hybrid and fuel cell vehicle platforms are both dependent on high performance electric motors. Electric motors for transportation duty will require sizeable low-speed torque to accelerate the vehicle. As motor speed increases, the torque requirement decreases which results in a nearly constant power motor output. Interior permanent magnet synchronous motors (IPMSM) are well suited for this duty. , , These rotor geometries are configured in straight lines and semi circular arc shapes. These designs are of limited configurations because of the lack of availability of permanent magnets of any other shapes at present. We propose to fabricate rotors via a novel processing approach where we start with magnet powders and compact them into a net shape rotor in a single step. Using this approach, widely different rotor designs can be implemented for efficiency. The current limitation on magnet shape and thickness will be eliminated. This is accomplished by co-filling magnet and soft iron powders at specified locations in intricate shapes using specially designed dies and automatic powder filling …
Date:
December 14, 2012
Creator:
Knoth, Edward A.; Chelluri, Bhanumathi & Schumaker, Edward J.
Object Type:
Report
System:
The UNT Digital Library
Air-Cooled Stack Freeze Tolerance Freeze Failure Modes and Freeze Tolerance Strategies for GenDriveTM Material Handling Application Systems and Stacks Final Scientific Report
Air-cooled stack technology offers the potential for a simpler system architecture (versus liquid-cooled) for applications below 4 kilowatts. The combined cooling and cathode air allows for a reduction in part count and hence a lower cost solution. However, efficient heat rejection challenges escalate as power and ambient temperature increase. For applications in ambient temperatures below freezing, the air-cooled approach has additional challenges associated with not overcooling the fuel cell stack. The focus of this project was freeze tolerance while maintaining all other stack and system requirements. Through this project, Plug Power advanced the state of the art in technology for air-cooled PEM fuel cell stacks and related GenDrive material handling application fuel cell systems. This was accomplished through a collaborative work plan to improve freeze tolerance and mitigate freeze-thaw effect failure modes within innovative material handling equipment fuel cell systems designed for use in freezer forklift applications. Freeze tolerance remains an area where additional research and understanding can help fuel cells to become commercially viable. This project evaluated both stack level and system level solutions to improve fuel cell stack freeze tolerance. At this time, the most cost effective solutions are at the system level. The freeze mitigation strategies developed …
Date:
February 14, 2012
Creator:
Hancock, David, W.
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 137, No. 4, Ed. 1 Thursday, June 14, 2012
Weekly newspaper from Albany, Texas that includes local, state and national news along with advertising.
Date:
June 14, 2012
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 112, No. 220, Ed. 1 Tuesday, February 14, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 14, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 241, Ed. 1 Wednesday, March 14, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 14, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 10, Ed. 1 Thursday, June 14, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 14, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 53, Ed. 1 Tuesday, August 14, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 14, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 76, Ed. 1 Friday, September 14, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 14, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 97, Ed. 1 Sunday, October 14, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 14, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 120, Ed. 1 Wednesday, November 14, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 14, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 113, No. 142, Ed. 1 Friday, December 14, 2012
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 14, 2012
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Alvarado Star (Alvarado, Tex.), Vol. 16, No. 40, Ed. 1 Thursday, June 14, 2012
Weekly newspaper from Alvarado, Texas that includes local, state, and national news along with advertising.
Date:
June 14, 2012
Creator:
McMichen, Candy
Object Type:
Newspaper
System:
The Portal to Texas History
Analysing the Effect on CMB in a Parity and Charge Parity Violating Varying Alpha Theory
In this paper we study in detail the effect of our recently proposed model of parity and charge-parity (PCP) violating varying alpha on the Cosmic Microwave Background (CMB) photon passing through the intra galaxy-cluster medium (ICM). The ICM is well known to be composed of magnetized plasma. According to our model, the polarization and intensity of the CMB would be affected when traversing through the ICM due to non-trivial scalar photon interactions. We have calculated the evolution of such polarization and intensity collectively, known as the stokes parameters of the CMB photon during its journey through the ICM and tested our results against the Sunyaev-Zel'dovich (SZ) measurement on Coma galaxy cluster. Our model contains a PCP violating parameter, {beta}, and a scale of alpha variation {omega}. Using the derived constrained on the photon-to-scalar conversion probability, {bar P}{sub {gamma}{yields}{phi}}, for Coma cluster in ref.[34] we found a contour plot in the ({omega},{beta}) parameter plane. The {beta} = 0 line in this parameter space corresponds to well-studied Maxwell-dilaton type models which has lower bound on {omega} {approx}> 6.4 x 10{sup 9} GeV. In general, as the absolute value of {beta} increases, lower bound on {omega} also increases. Our model in general predicts …
Date:
September 14, 2012
Creator:
Maity, Debaprasad; /NCTS, Taipei /Taiwan, Natl. Taiwan U.; Chen, Pisin & /NCTS, Taipei /Taiwan, Natl. Taiwan U. /KIPAC, Menlo Park /SLAC
Object Type:
Article
System:
The UNT Digital Library
ANALYTICAL RESULTS OF MOX COLEMANITE CONCRETE SAMPLE POURED MAY 4, 2012
The Mixed Oxide Fuel Fabrication Facility (MFFF) will use Colemanite bearing concrete neutron absorber panels credited with attenuating neutron flux in the criticality design analyses. The Savannah River National Laboratory is tasked with measuring the total density, partial hydrogen density, and partial boron density of the colemanite concrete. Sample 04 May 12/Test/S1-1, S1-2, and S1-3 was received on 5/9/2012 and analyzed. The total density measure by the ASTM method C 642 was 2.00 g/cm{sup 3}, within the lower bound of 1.88 g/cm{sup 3}. The partial hydrogen density of 6.35E-02 g/cm{sup 3} as measured using method ASTM E 1311 met the lower bound of 6.04E-02 g/cm{sup 3}. The measured partial boron density of 1.88E-01 g/cm{sup 3} exceeded the lower bound of 1.65E-01 g/cm{sup 3} when the sodium peroxide fusion dissolution method was used in place of the prescribed ASTM C 1301 method.
Date:
June 14, 2012
Creator:
Cozzi, A.; Best, D. & Reigel, M.
Object Type:
Report
System:
The UNT Digital Library
Application of the Principle of Maximum Conformality to the Top-Quark Forward-Backward Asymmetry at the Tevatron
The renormalization scale uncertainty can be eliminated by the Principle of Maximum Conformality (PMC) in a systematic scheme-independent way. Applying the PMC for the t{bar t}-pair hadroproduction at the NNLO level, we have found that the total cross-sections {sigma}{sub t{bar t}} at both the Tevatron and LHC remain almost unchanged when taking very disparate initial scales {mu}{sub R}{sup init} equal to m{sub t}, 10 m{sub t}, 20 m{sub t} and {radical}s, which is consistent with renormalization group invariance. As an important new application, we apply PMC scale-setting to study the top-quark forward-backward asymmetry. We observe that the more convergent perturbative series after PMC scale-setting leads to a more accurate top-quark forward-backward asymmetry. The resulting PMC prediction on the asymmetry is also free from the initial renormalization scale-dependence. Because the NLO PMC scale has a dip behavior for the (q{bar q})-channel at small subprocess collision energies, the importance of this channel to the asymmetry is increased. We observe that the asymmetries A{sub FB}{sup t{bar t}} and A{sub FB}{sup p{bar p}} at the Tevatron will be increased by 42% in comparison to the previous estimates obtained by using conventional scale-setting; i.e. we obtain A{sub FB}{sup t{bar t}PMC} {approx_equal} 12.5% and A{sub FB}{sup …
Date:
May 14, 2012
Creator:
Brodsky, Stanley J. & Wu, Xing-Gang
Object Type:
Article
System:
The UNT Digital Library
Archer County News (Archer City, Tex.), Vol. 104, No. 24, Ed. 1 Thursday, June 14, 2012
Weekly newspaper from Archer City, Texas that includes local, state and national news along with advertising.
Date:
June 14, 2012
Creator:
Phillips, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
Assistance to Firefighters Program: Distribution of Fire Grant Funding
This report discusses the firefighting activities that are traditionally the responsibility of states and local communities. The report also talks about the funding for firefighters, which is provided mostly by state and local governments. However, during the 106th Congress, many in the fire community asserted that local fire departments require and deserve greater support from the federal government.
Date:
February 14, 2012
Creator:
Kruger, Lennard G.
Object Type:
Report
System:
The UNT Digital Library
Assistance to Firefighters Program: Distribution of Fire Grant Funding
Background of the Fire Grants Authorization Act of 2011, including its purpose and uses of funding resulting from the act.
Date:
February 14, 2012
Creator:
Kruger, Lennard G.
Object Type:
Report
System:
The UNT Digital Library
Assssment and Mapping of the Riverine Hydrokinetic Resource in the Continental United States
The U.S. Department of Energy (DOE) funded the Electric Power Research Institute and its collaborative partners, University of Alaska ? Anchorage, University of Alaska ? Fairbanks, and the National Renewable Energy Laboratory, to provide an assessment of the riverine hydrokinetic resource in the continental United States. The assessment benefited from input obtained during two workshops attended by individuals with relevant expertise and from a National Research Council panel commissioned by DOE to provide guidance to this and other concurrent, DOE-funded assessments of water based renewable energy. These sources of expertise provided valuable advice regarding data sources and assessment methodology. The assessment of the hydrokinetic resource in the 48 contiguous states is derived from spatially-explicit data contained in NHDPlus ?a GIS-based database containing river segment-specific information on discharge characteristics and channel slope. 71,398 river segments with mean annual flow greater than 1,000 cubic feet per second (cfs) mean discharge were included in the assessment. Segments with discharge less than 1,000 cfs were dropped from the assessment, as were river segments with hydroelectric dams. The results for the theoretical and technical resource in the 48 contiguous states were found to be relatively insensitive to the cutoff chosen. Raising the cutoff to 1,500 …
Date:
December 14, 2012
Creator:
Jacobson, Paul T.; Ravens, Thomas M.; Cunningham, Keith W. & Scott, George
Object Type:
Report
System:
The UNT Digital Library