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Board Meeting and Caucus, Texas Convention, June 14, 2004
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0.52eV Quaternary InGaAsSb Thermophotovoltaic Diode Technology
Thermophotovoltaic (TPV) diodes fabricated from 0.52eV lattice-matched InGaAsSb alloys are grown by Metal Organic Vapor Phase Epitaxy (MOVPE) on GaSb substrates. 4cm{sup 2} multi-chip diode modules with front-surface spectral filters were tested in a vacuum cavity and attained measured efficiency and power density of 19% and 0.58 W/cm{sup 2} respectively at operating at temperatures of T{sub radiator} = 950 C and T{sub diode} = 27 C. Device modeling and minority carrier lifetime measurements of double heterostructure lifetime specimens indicate that diode conversion efficiency is limited predominantly by interface recombination and photon energy loss to the GaSb substrate and back ohmic contact. Recent improvements to the diode include lattice-matched p-type AlGaAsSb passivating layers with interface recombination velocities less than 100 cm/s and new processing techniques enabling thinned substrates and back surface reflectors. Modeling predictions of these improvements to the diode architecture indicate that conversion efficiencies from 27-30% and {approx}0.85 W/cm{sup 2} could be attained under the above operating temperatures.
Date:
June 9, 2004
Creator:
Dashiell, M. W.; Beausang, J. F.; Nichols, G.; Depoy, D. M.; Danielson, L. R.; Ehsani, H. et al.
Object Type:
Report
System:
The UNT Digital Library
9-11 Commission Hearing #12, June 16, 2004, Part 1
Recording of the twelfth public hearing held by the National Commission on Terrorist Attacks upon the United States on June 16, 2004 at the NTSB Conference Center in Washington, D.C. The two-day hearing focused on two distinct topics: the 9-11 Plot and the federal government's immediate response to the attacks on September 11, 2001. This section includes the staff statement entitled overview of the enemy in addition to the first panel on Al-Qaeda with testimony from Mary Deborah Doran and Patrick J. Fitzgerald.
Date:
June 16, 2004
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #12, June 16, 2004, Part 2
Recording of the twelfth public hearing held by the National Commission on Terrorist Attacks upon the United States on June 16, 2004 at the NTSB Conference Center in Washington, D.C. The two-day hearing focused on two distinct topics: the 9-11 Plot and the federal government's immediate response to the attacks on September 11, 2001. This section includes the staff statement entitled outline of the 9/11 plot, in addition to the second panel on the outline of the outline of the 9/11 plot with testimony from Jacqueline Maguire, James N. Fitzgerald, and Adam B. Drucker.
Date:
June 16, 2004
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #12, June 17, 2004, Part 1
Recording of the twelfth public hearing held by the National Commission on Terrorist Attacks upon the United States on June 17, 2004 at the NTSB Conference Center in Washington, D.C. The two-day hearing focused on two distinct topics: the 9-11 Plot and the federal government's immediate response to the attacks on September 11, 2001. This section includes the staff statement entitled improvising a homeland defense in addition to the panel on military response on 9/11, with testimony from Richard Myers, Charles Joseph Leidig, and Ralph E. Eberhart.
Date:
June 17, 2004
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
9-11 Commission Hearing #12, June 17, 2004, Part 2
Recording of the twelfth public hearing held by the National Commission on Terrorist Attacks upon the United States on June 17, 2004 at the NTSB Conference Center in Washington, D.C. The two-day hearing focused on two distinct topics: the 9-11 Plot and the federal government's immediate response to the attacks on September 11, 2001. This section concludes the hearing, and includes the panel on FAA response on 9/11, with testimony from Monte Belger, Jeff Griffith, John White, and Benedict Sliney.
Date:
June 17, 2004
Creator:
National Commission on Terrorist Attacks upon the United States
Object Type:
Video
System:
The UNT Digital Library
A 20-year data set of surface longwave fluxes in the Arctic
Creation of 20-year data set of surface infrared fluxes from satellite measurements. A reliable estimate of the surface downwelling longwave radiation flux (DLF) is a glaring void in available forcing data sets for models of Arctic sea ice and ocean circulation. We have developed a new method to estimate the DLF from a combination of satellite sounder retrievals and brightness temperatures from the TIROS Operational Vertical Sounder (TOVS), which has flown on NOAA polar-orbiting satellites continuously since late 1979. The overarching goal of this project was to generate a 20-year data set of surface downwelling longwave flux measurements from TOVS data over the Arctic Ocean. Daily gridded fields of DLF were produced with a spatial resolution of (100 km){sup 2} north of 60{sup o}N for 22.5 years rather than only 20. Surface measurements from the field station at Barrow, AK--part of the Atmospheric Radiation Measurement (ARM) Program --and from the Surface Heat Budget of the Arctic (SHEBA) were used to validate the satellite-derived fluxes and develop algorithm improvements for conditions that had resulted in systematic errors in early versions of the algorithm. The resulting data set has already been sent to two other investigators for incorporation into their research, and …
Date:
June 15, 2004
Creator:
Francis, Jennifer
Object Type:
Report
System:
The UNT Digital Library
[2004 Elections for 2005 Board of Directors]
Texas Daily Newspaper Associations' 2004 Elections for 2005 Board of Directors document. The document states that the nomination committee must elect 3/4 new people depending on who is elected treasurer to fill their unexpired term if they're nominated to change positions.
Date:
June 14, 2004
Creator:
Texas Daily Newspaper Association
Object Type:
Text
System:
The UNT Digital Library
[2004 Texas Democratic Party State Convention]
Schedule listing the dates and times of events planned for the 2004 Texas Democratic Party State Convention in Houston, Texas. Map of downtown and the Metro trolleys service hours throughout downtown.
Date:
[2004-06-17..2004-06-19]
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[20th annual summer youth arts institute]
Video recording from The Black Academy of Arts and Letters recorded during the 20th annual summer youth arts camp on June 19th, 2004. The footage shows a film with credits at its opener followed by youth of various ages in jeans, t-shirts, sunglasses and hats dancing and singing. Curtis King and others give closing remarks.
Date:
June 19, 2004
Creator:
King, Curtis
Object Type:
Video
System:
The UNT Digital Library
[20th Annual Summer Youth Arts Institute Performance Video]
Video footage from The Black Academy of Arts and Letters recorded during the 20th annual Summer Youth Arts Institute performance held on June 12, 2004. The theme of the years program is all things Hollywood with children of varying ages performing various skits from famous films, bands and orchestras and playing selections from film scores. Other groups include dancers and handbell choirs. Various administrators speak throughout the performance as they reset the stage about the program and notable volunteers.
Date:
June 12, 2004
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[4th annual Sankofa Café Bash "Wine, Watermelon, The Word" tape 1 of 2]
Video recording from The Black Academy of Arts and Letters recorded during the conclusion of the 4th annual Sankofa Café Bash "Wine, Watermelon, The Word" literary voices series performance. The spoken word event featured Dallas's best seller Emotion Brown along with soul and hip hop music.
Date:
June 19, 2004
Creator:
King, Curtis & Spencer, Camika
Object Type:
Video
System:
The UNT Digital Library
[4th annual Sankofa Café Bash "Wine, Watermelon, The Word" tape 2 of 2]
Video recording from The Black Academy of Arts and Letters recorded during the conclusion of the 4th annual Sankofa Café Bash "Wine, Watermelon, The Word" literary voices series performance. The spoken word event featured Dallas's best seller Emotion Brown along with soul and hip hop music. The tape switches to a youth summer arts performance at the 33:13 time mark.
Date:
June 19, 2004
Creator:
King, Curtis & Spencer, Camika
Object Type:
Video
System:
The UNT Digital Library
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 2
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Larry Forehand of Pasadena on the 30th anniversary of Casa Ole restaurants.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 3
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Weldon Willig on being named Southwest Region National Coach of the Year by Schutt Sports.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 4
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to honoring John McDivitt of Houston on the occasion of his retirement from the American Red Cross after 38 years of service.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 6
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to honoring James Ellis "Jim" Hall for his motor sports achievements and congratulating him on the opening of the Chaparral Gallery at the Petroleum Museum in Midland.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 8
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to designating September 2004 as Luekemia and Lymphoma Awareness Month in Texas.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 13
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating the Coyle Middle School Band of Garland on receiving the John Philip Sousa Foundation Sudler Silver Cup award for 2003.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 16
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Dr. Claude Thomas and the First Baptist Church Euless on the occasion of the church's 100th anniversary.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 17
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating the Shallowater High School girls' basketball team on winning the 2003-2004 UIL Class 2A State Championship.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 18
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating the Shallowater High School boys' basketball team on winning the 2004 UIL Class 2A State Championship.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 20
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to congratulating Coach Doug Davalos and the Sul Ross State University Lobos men's basketball team on repeating as American Southwest Conference West Division champs, winning the American Southwest Conference title, and advancing to the Sweet 16 in the 2004 NCAA Division III tournament.
Date:
June 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, Senate Concurrent Resolution 2
Concurrent resolution introduced by the Texas Senate and House of Representatives relating to paying tribute to the life of US Army Sgt. William Cody Eckhart of Rocksprings, who died on April 10, 2004, at the age of 25 while serving in Iraq.
Date:
June 7, 2004
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
78th Texas Legislature, Fourth Called Session, Senate Concurrent Resolution 3
Concurrent resolution introduced by the Texas Senate and House of Representatives relating to commending the Big Spring Veterans Administration Medical Center for providing quality medical treatment and care to our nation's veterans.
Date:
June 7, 2004
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History