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20,125 Matching Results

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Results: 1 - 24 of 20,125 next
Best Match Title Creator Date Created (Newest) Date Created (Oldest) Date Added (Newest) Date Added (Oldest)
Interpretive Guide to: Goliad State Park (open access)

Interpretive Guide to: Goliad State Park

Pamphlet giving brief history of significant events for Goliad State Park from its early history to acquirement by the Texas Parks and Wildlife Department.
Date: 2013
Creator: Texas. Parks and Wildlife Department.
Object Type: Pamphlet
System: The Portal to Texas History
Interpretive Guide to: Goliad State Park (open access)

Interpretive Guide to: Goliad State Park

Pamphlet giving brief history of significant events for Goliad State Park from its early history to acquirement by the Texas Parks and Wildlife Department.
Date: 2011
Creator: Texas. Parks and Wildlife Department.
Object Type: Pamphlet
System: The Portal to Texas History
[News Clip: Reagan] captions transcript

[News Clip: Reagan]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: May 5, 1983, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
Speed of Sound in Periodic Elastic Composites (open access)

Speed of Sound in Periodic Elastic Composites

In this article, the authors consider the low-frequency limit (homogenization) for propagation of sound waves in periodic elastic medium (phononic crystals).
Date: December 29, 2003
Creator: Krokhin, Arkadii A.; Arriaga, J. & Gumen, L.
Object Type: Article
System: The UNT Digital Library
Low-frequency index of refraction for a two-dimensional metallodielectric photonic crystal (open access)

Low-frequency index of refraction for a two-dimensional metallodielectric photonic crystal

This article discusses the low-frequency index of refraction for a two-dimensional metallodialectric photonic crystal.
Date: January 29, 2007
Creator: Krokhin, Arkadii A.; Reyes, E. & Gumen, L.
Object Type: Article
System: The UNT Digital Library
Tuning the decay of sound in a viscous metamaterial (open access)

Tuning the decay of sound in a viscous metamaterial

Authors of the article use analytical results for viscous dissipation in phononic crystals to calculate the decay coefficient of a sound wave propagating at low frequencies through a two-dimensional phononic crystal with a viscous fluid background. They claim that the decay coefficient exhibits dependence on the direction of propagation; that is, a homogenized phononic crystal behaves like an anisotropic viscous fluid.
Date: October 10, 2022
Creator: Ibarias, M.; Doporto, J.; Krokhin, Arkadii A. & Arriaga, J.
Object Type: Article
System: The UNT Digital Library
Electrodynamics of superlattices with ultra-thin metal layers: quantum Landau damping and band gaps with nonzero density of states (open access)

Electrodynamics of superlattices with ultra-thin metal layers: quantum Landau damping and band gaps with nonzero density of states

This article develops a theory of electromagnetic transmission through dielectric-metal superlattices with ultra-thin metal films, in which electron motion in the direction perpendicular to the metal surfaces is quantized.
Date: October 16, 2018
Creator: Castillo-López, S. G.; Krokhin, Arkadii A.; Makarov, N. M. & Pérez-Rodríguez, F.
Object Type: Article
System: The UNT Digital Library
[Letter from Douglas M. Herrera to John J. Herrera - 1971-01-09] (open access)

[Letter from Douglas M. Herrera to John J. Herrera - 1971-01-09]

Letter from Douglas M. Herrera to his father, John J. Herrera, dated January 7, 1971 and mailed from Puebla, Mexico, to Houston, Texas. The letter states that Douglas M. Herrera has been relieved of his position at the County Clerk's Office. He explains that he has returned to school to take education courses in the hopes of qualifying to teach.
Date: January 7, 1971
Creator: Herrera, Douglas M.
Object Type: Letter
System: The Portal to Texas History
[Western Union money order receipt from John J. Herrera to Felice A. Herrera - May 30, 1974] (open access)

[Western Union money order receipt from John J. Herrera to Felice A. Herrera - May 30, 1974]

Western Union telegraphic money order receipt from John J. Herrera to Felice A. Herrera in Cholula, Puebla, Mexico in the amount of $175. Note says "please get ring for Douglas, love."
Date: May 30, 1974
Creator: Herrera, John J.
Object Type: Text
System: The Portal to Texas History
Generation of correlated binary sequences from white noise (open access)

Generation of correlated binary sequences from white noise

This article discusses a method for generation of correlated binary sequences from white noise.
Date: August 21, 2007
Creator: Izrailev, Felix M.; Krokhin, Arkadii A.; Makarov, N. M. & Usatenko, O. V.
Object Type: Article
System: The UNT Digital Library
Enhancement of Localization in One-Dimensional Random Potentials with Long-Range Correlations (open access)

Enhancement of Localization in One-Dimensional Random Potentials with Long-Range Correlations

This article discusses the enhancement of localization in one-dimensional random potentials with long-range correlations.
Date: March 28, 2008
Creator: Kuhl, Ulrich; Izrailev, Felix M. & Krokhin, Arkadii A.
Object Type: Article
System: The UNT Digital Library
Phononic crystal as a homogeneous viscous metamaterial (open access)

Phononic crystal as a homogeneous viscous metamaterial

Article develops a homogenization theory, representing the low-frequency limit for a phononic crystal of cylinders embedded in a viscous fluid.
Date: June 8, 2020
Creator: Krokhin, Arkadii A.; Zubov, Yu.; Ibarias, M. & Arriaga, J.
Object Type: Article
System: The UNT Digital Library
Oral History Interview with Jacobo Kupersztoch, October 12, 2007

Oral History Interview with Jacobo Kupersztoch, October 12, 2007

Access: Use of this item is restricted to the UNT Community
Interview with Jacobo Kupersztoch, Mexican-born immigrant to the U.S. of German heritage, and immigrant rights activist. Interview transcript contains Spanish and English translations.
Date: October 12, 2007
Creator: Calderon, Roberto & Kupersztoch, Jacobo
Object Type: Book
System: The UNT Digital Library
Poly(3-hydroxybutyrate) graft copolymer dense membranes for human mesenchymal stem cell growth (open access)

Poly(3-hydroxybutyrate) graft copolymer dense membranes for human mesenchymal stem cell growth

This article discusses the preparation of thermal-remolded membrane scaffolds from poly(3-hydroxybutyrate) grafted with 2-amino-ehtyl methacrylate hydrochloride.
Date: May 25, 2018
Creator: González-Torres, Maykel; Sánchez-Sánchez, Roberto; Solís-Rosales, Silvia G.; Brostow, Witold, 1934-; Reyes-Cervantes, Eric; Gutiérrez-Uribe, Janet Alejandra et al.
Object Type: Article
System: The UNT Digital Library
Transactions of the Regional Archeological Symposium for Southeastern New Mexico and Western Texas: 1999 (open access)

Transactions of the Regional Archeological Symposium for Southeastern New Mexico and Western Texas: 1999

Proceedings of the 35th regional archeological symposium including the text of papers presented during the conference. It also includes the SWFAS by-laws, a financial statement, and the meeting minutes for a business meeting.
Date: 2000
Creator: unknown
Object Type: Book
System: The Portal to Texas History
Transactions of the Regional Archeological Symposium for Southeastern New Mexico and Western Texas: 2001 (open access)

Transactions of the Regional Archeological Symposium for Southeastern New Mexico and Western Texas: 2001

Proceedings of the 37th regional archeological symposium including the text of papers presented during the conference. It also includes the SWFAS by-laws, and the meeting minutes for a SWFAS business meeting.
Date: 2002
Creator: Robertson, Pinky
Object Type: Book
System: The Portal to Texas History
Postcard of a Mexican Cartoon]

Postcard of a Mexican Cartoon]

Postcard featuring an illustrated cartoon on its front, with Spanish dialogue below the image. In the image, a uniformed man is pointing a man with a broom towards other individuals sweeping the street. A man with a similar uniform is watching from a doorway in the background. On the back of the postcard, the sender has left a handwritten message, written in Spanish.
Date: unknown
Creator: unknown
Object Type: Postcard
System: The Portal to Texas History
The experiment road to the heavier quarks and other heavy objects (open access)

The experiment road to the heavier quarks and other heavy objects

None
Date: November 30, 2000
Creator: Appel, Jeffrey A.
Object Type: Article
System: The UNT Digital Library
[News Script: Earthquake] (open access)

[News Script: Earthquake]

Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story about an earthquake which hit parks of Mexico killing two persons and injuring sixteen in the town of Puebla.
Date: August 28, 1973, 12:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
Electrostatic enhancement of light emitted by semiconductor quantum well (open access)

Electrostatic enhancement of light emitted by semiconductor quantum well

This article proposes an electrostatic mechanism for enhancement of light radiated from semiconductor emitter which is comparable in effect to plasmonic mechanism.
Date: October 13, 2015
Creator: Krokhin, Arkadii A.; Neogi, Arup; Llopis, A.; Mahat, M.; Gumen, L.; Pereira, S. et al.
Object Type: Article
System: The UNT Digital Library
[News Script: Mexico quake] (open access)

[News Script: Mexico quake]

Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story about death toll in Mexico which would reach one thousand when bodies of victims are recovered from piles of rubble .
Date: August 29, 1973, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library
Measuring Strangeness in the Nucleon (open access)

Measuring Strangeness in the Nucleon

Evidence for strangeness matrix-elements in the proton are reviewed, and other measurements for specific strangeness matrix elements are presented.
Date: December 31, 1992
Creator: Henley, E. M.
Object Type: Article
System: The UNT Digital Library
[Letter from John J. Herrera to the editor of Sound Off, Houston Post] (open access)

[Letter from John J. Herrera to the editor of Sound Off, Houston Post]

Onionskin carbon copy of a letter from John J. Herrera to the editor of the Houston Post for the "Sound Off" column. In his letter, Herrera seeks support from the United States and Mexico to build a commemorative shrine to General Ignacio Zaragoza, the South Texas Mexican patriot and hero of the Battle of Puebla.
Date: unknown
Creator: Herrera, John J.
Object Type: Letter
System: The Portal to Texas History
[News Script: Mexico quake] (open access)

[News Script: Mexico quake]

Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story about death toll from devastating earthquake which is nearing the 500 mark.
Date: August 28, 1973, 10:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Object Type: Script
System: The UNT Digital Library