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A 3-D model of superfluid helium suitable for numerical analysis (open access)

A 3-D model of superfluid helium suitable for numerical analysis

The two-fluid description is a very successful phenomenological representation of the properties of Helium II. A 3-D model suitable for numerical analysis based on the Landau-Khalatnikov description of Helium II is proposed. In this paper we introduce a system of partial differential equations that is both complete and consistent as well as practical, to be used for a 3-D solution of the flow of Helium II. The development of a 3-D numerical model for Helium II is motivated by the need to validate experimental results obtained by observing the normal component velocity distribution in a Helium II thermal counter-flow using the Particle Image Velocimetry (PIV) technique.
Date: January 1, 2008
Creator: Darve, C.; U., /Fermilab /Northwestern; Patankar, N.A.; U., /Northwestern; Van Sciver, S.W. & Lab., /Natl. High Mag. Field
Object Type: Article
System: The UNT Digital Library
20% Wind Energy by 2030 (open access)

20% Wind Energy by 2030

This analysis explores one clearly defined scenario for providing 20% of our nations electricity demand with wind energy by 2030 and contrasts it to a scenario of no new wind power capacity.
Date: July 1, 2008
Creator: unknown
Object Type: Report
System: The UNT Digital Library
20% Wind Energy by 2030: Increasing Wind Energy's Contribution to U.S. Electricity Supply; Executive Summary (Revised) (open access)

20% Wind Energy by 2030: Increasing Wind Energy's Contribution to U.S. Electricity Supply; Executive Summary (Revised)

This document is a 21-page summary of the 200+ page analysis that explores one clearly defined scenario for providing 20% of our nation's electricity demand with wind energy by 2030 and contrasts it to a scenario of no new U.S. wind power capacity.
Date: December 1, 2008
Creator: unknown
Object Type: Report
System: The UNT Digital Library
20% Wind Energy - Diversifying Our Energy Portfolio and Addressing Climate Change (Brochure) (open access)

20% Wind Energy - Diversifying Our Energy Portfolio and Addressing Climate Change (Brochure)

This brochure describes the R&D efforts needed for wind energy to meet 20% of the U.S. electrical demand by 2030. In May 2008, DOE published its report, 20% Wind Energy by 2030, which presents an in-depth analysis of the potential for wind energy in the United States and outlines a potential scenario to boost wind electric generation from its current production of 16.8 gigawatts (GW) to 304 GW by 2030. According to the report, achieving 20% wind energy by 2030 could help address climate change by reducing electric sector carbon dioxide (CO2) emissions by 825 million metric tons (20% of the electric utility sector CO2 emissions if no new wind is installed by 2030), and it will enhance our nation's energy security by diversifying our electricity portfolio as wind energy is an indigenous energy source with stable prices not subject to fuel volatility. According to the report, increasing our nation's wind generation could also boost local rural economies and contribute to significant growth in manufacturing and the industry supply chain. Rural economies will benefit from a substantial increase in land use payments, tax benefits and the number of well-paying jobs created by the wind energy manufacturing, construction, and maintenance industries. …
Date: May 1, 2008
Creator: unknown
Object Type: Report
System: The UNT Digital Library
[24-Hour Film Feast with Malik Yoba] captions transcript

[24-Hour Film Feast with Malik Yoba]

Video footage from The Black Academy of Arts and Letters recorded during TBAALs 2008 24-Hour Filmfeast featuring actor Malik Yoba on March 1st. The footage features a live Q&A discussion with Yoba on his career and perspective on the industry.
Date: March 1, 2008
Creator: Yoba, Malik
Object Type: Video
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0001]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0002]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0003]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0004]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0005]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0006]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0007]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0008]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0009]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0010]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0011]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0012]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0013]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0014]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0015]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0016]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0017]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0018]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library

[24-Hour FilmFeast Photograph UNTA_AR0797-138-004-0019]

Photograph taken at a 24-Hour FilmFeast event featuring Malik Yoba, sponsored by The Black Academy of Arts and Letters in Dallas, Texas.
Date: March 1, 2008
Creator: Smith, David L., III
Object Type: Photograph
System: The UNT Digital Library