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9,773 Matching Results
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Mechanical Models of Fault-Related Folding
The subject of the proposed research is fault-related folding and ground deformation. The results are relevant to oil-producing structures throughout the world, to understanding of damage that has been observed along and near earthquake ruptures, and to earthquake-producing structures in California and other tectonically-active areas. The objectives of the proposed research were to provide both a unified, mechanical infrastructure for studies of fault-related foldings and to present the results in computer programs that have graphical users interfaces (GUIs) so that structural geologists and geophysicists can model a wide variety of fault-related folds (FaRFs).
Date:
January 9, 2003
Creator:
Johnson, A. M.
Object Type:
Report
System:
The UNT Digital Library
On the construction of a domain language for a class of reactive systems
A key step in the construction of high consequence software is its specification in a formal framework. In order to minimize the difficulty and potential for error, a specification should be expressed in a domain language supporting operators and structures that are intrinsic to the class of algorithms one wishes to specify. In this paper the authors describe a language that is suitable for the algorithmic specification of software controllers for a class of reactive systems of which the Bay Area Rapid Transit (BART) system is an instance. The authors then specify an abstract controller for a subset of BART using this language.
Date:
December 9, 1999
Creator:
Kapur, D. & Winter, V.L.
Object Type:
Article
System:
The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 38, No. 59, Ed. 1 Friday, March 9, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
March 9, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 39, No. 587, Ed. 1 Friday, January 9, 2009
Free weekly newspaper that includes business and classified advertising.
Date:
January 9, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 11, Ed. 1 Friday, February 9, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
February 9, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 41, No. 119, Ed. 1 Friday, April 9, 2010
Free weekly newspaper that includes business and classified advertising.
Date:
April 9, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 39, No. 167, Ed. 1 Friday, May 9, 2008
Free weekly newspaper that includes business and classified advertising.
Date:
May 9, 2008
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 42, No. 383, Ed. 1 Friday, September 9, 2011
Free weekly newspaper that includes business and classified advertising.
Date:
September 9, 2011
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 40, No. 431, Ed. 1 Friday, October 9, 2009
Free weekly newspaper that includes business and classified advertising.
Date:
October 9, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 36, No. 371, Ed. 1 Friday, September 9, 2005
Free weekly newspaper that includes business and classified advertising.
Date:
September 9, 2005
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Oral History Interview with Lloyd C. Cross, April 9, 1997
Access:
Use of this item is restricted to the UNT Community
Interview with Lloyd C. Cross, a Navy veteran, concerning his experiences while aboard the submarines USS S-45 USS Sunfish, USS Spearfish, USS Pogy in the Pacific Theater during World War II. Pre-war duty aboard the USS California and the heavy cruiser USS Vincennes, 1935-39; Submarine School, New London, Connecticut, 1940; his responsibilities as a fireman; various patrols in the Sea of Japan.
Date:
April 9, 1997
Creator:
Maglaughlin, Barry & Cross, Lloyd C.
Object Type:
Book
System:
The UNT Digital Library
Southern Pacific (SP) 2360
A photograph print showing the Southern Pacific (SP) 2360, 4-6-0, on San Diego & Arizona Eastern (SDAE) west bound passenger train No. 363, crossing a trestle just east of Campo, CA.
Date:
September 9, 1945
Creator:
Griffiths, Henry R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Observation of resonant energy transfer between identical-frequency laser beams
Enhanced transmission of a low intensity laser beam is observed when crossed with an identical-frequency beam in a plasma with a flow velocity near the ion sound speed. The time history of the enhancement and the dependence on the flow velocity strongly suggest that this is due to energy transfer between the beams via a resonant ion wave with zero frequency in the laboratory frame. The maximum energy transfer has been observed when the beams cross in a region with Mach 1 flow. The addition of frequency modulation on the crossing beams is seen to reduce the energy transfer by a factor of two. Implications for indirect-drive fusion schemes are discussed.
Date:
December 9, 1998
Creator:
Afeyan, B. B.; Cohen, B. I.; Estabrook, K. G.; Glenzer, S. H.; Joshi, C.; Kirkwood, R. K. et al.
Object Type:
Article
System:
The UNT Digital Library
Modeling anomalous surface - wave propagation across the Southern Caspian basin
The crust of the south Caspian basin consists of 15-25 km of low velocity, highly attenuating sediment overlying high velocity crystalline crust. The Moho depth beneath the basin is about 30 km as compared to about 50 km in the surrounding region. Preliminary modeling of the phase velocity curves shows that this thick sediments of the south Caspian basin are also under-lain by a 30-35 km thick crystalline crust and not by typical oceanic crust. This analysis also suggest that if the effect of the over-pressuring of the sediments is to reduce Poissons` ratio, the over-pressured sediments observed to approximately 5 km do not persist to great depths. It has been shown since 1960`s that the south Caspian basin blocks the regional phase Lg. Intermediate frequency (0.02-0.04 Hz) fundamental mode Raleigh waves propagating across the basin are also severely attenuated, but the low frequency surface waves are largely unaffected. This attenuation is observed along the both east-to-west and west-to-east great circle paths across the basin, and therefore it cannot be related to a seismograph site effect. We have modeled the response of surface waves in an idealized rendition of the south Caspian basin model using a hybrid normal mode / …
Date:
January 9, 1998
Creator:
Priestly, K. F.; Patton, H. J. & Schultz, C. A.
Object Type:
Report
System:
The UNT Digital Library
Garland News. (Garland, Tex.), Vol. 19, No. 9, Ed. 1 Friday, June 9, 1905
Weekly newspaper from Garland, Texas that includes local, state, and national news along with advertising.
Date:
June 9, 1905
Creator:
Holford, Will A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Garland News (Garland, Tex.), Vol. 55, No. 28, Ed. 1 Friday, October 9, 1942
Weekly newspaper from Garland, Texas that includes local, state, and national news along with advertising.
Date:
October 9, 1942
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Garland News. (Garland, Tex.), Vol. 19, No. 48, Ed. 1 Friday, March 9, 1906
Weekly newspaper from Garland, Texas that includes local, state, and national news along with advertising.
Date:
March 9, 1906
Creator:
Holford, Will A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Garland News (Garland, Tex.), Vol. 54, No. 6, Ed. 1 Friday, May 9, 1941
Weekly newspaper from Garland, Texas that includes local, state, and national news along with advertising.
Date:
May 9, 1941
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Garland News. (Garland, Tex.), Vol. 17, No. 26, Ed. 1 Friday, October 9, 1903
Weekly newspaper from Garland, Texas that includes local, state, and national news along with advertising.
Date:
October 9, 1903
Creator:
Cullom, John H.
Object Type:
Newspaper
System:
The Portal to Texas History
The Garland News (Garland, Tex.), Vol. 54, No. 41, Ed. 1 Friday, January 9, 1942
Weekly newspaper from Garland, Texas that includes local, state, and national news along with advertising.
Date:
January 9, 1942
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Garland News. (Garland, Tex.), Vol. 19, No. 44, Ed. 1 Friday, February 9, 1906
Weekly newspaper from Garland, Texas that includes local, state, and national news along with advertising.
Date:
February 9, 1906
Creator:
Holford, Will A.
Object Type:
Newspaper
System:
The Portal to Texas History
Research in High Energy Physics
This final report details the work done from January 2010 until April 2013 in the area of experimental and theoretical high energy particle physics and cosmology at the University of California, Davis.
Date:
August 9, 2013
Creator:
Conway, John S.
Object Type:
Text
System:
The UNT Digital Library
Close Encounters of Asteroids and Comets to Planets
This is the final report of a three-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The authors find by numerical simulations that the elongated-potato shape that is characteristic of Earth-crossing asteroids (ECAs) is likely the result of previous close tidal encounters with Earth. Some meteoroids graze the atmosphere of Earth before returning to space (at reduced speed). They used a spherical atmospheric model to study such grazers to find the condition under which they are captured into gravitationally bound orbits around Earth. They find that for about every thousand iron asteroids that hit the Earth, one is captured into a gravitational-bound orbit. Some fraction of these captured objects will have their orbits stabilized for many revolutions by tidal encounters with the Moon and the sun. They have also studied how the damage produced by such grazing and near-grazing asteroids differs from that produced by asteroids that hit Earth more directly.
Date:
July 9, 1999
Creator:
Hills, J.G.; Goda, M.P. & Solem, J.C.
Object Type:
Report
System:
The UNT Digital Library
Introduction to Hydrodynamics
Various aspects of hydrodynamics and elastic--plastic flow are introduced for the purpose of defining hydrodynamic terms and explaining what some of the important hydrodynamic concepts are. The first part covers hydrodynamic theory; and discussed fundamental hydrodynamic equations, discontinuities, and shock, detonation, and elastic--plastic waves. The second part deals with applications of hydrodynamic theory to material equations of state, spall, Taylor instabilities, and detonation pressure measurements.
Date:
January 9, 1979
Creator:
Wilkins, M. L.
Object Type:
Report
System:
The UNT Digital Library