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2-D Path Corrections for Local and Regional Coda Waves: A Test of Transportability
Reliable estimates of the seismic source spectrum are necessary for accurate magnitude, yield, and energy estimation. In particular, how seismic radiated energy scales with increasing earthquake size has been the focus of recent debate within the community and has direct implications on earthquake source physics studies as well as hazard mitigation. The 1-D coda methodology of Mayeda et al. [2003] has provided the lowest variance estimate of the source spectrum when compared against traditional approaches that use direct S-waves, thus making it ideal for networks that have sparse station distribution. The 1-D coda methodology has been mostly confined to regions of approximately uniform complexity. For larger, more geophysically complicated regions, 2-D path corrections may be required. We will compare performance of 1-D versus 2-D path corrections in a variety of regions. First, the complicated tectonics of the northern California region coupled with high quality broadband seismic data provides for an ideal ''apples-to-apples'' test of 1-D and 2-D path assumptions on direct waves and their coda. Next, we will compare results for the Italian Alps using high frequency data from the University of Genoa. For Northern California, we used the same station and event distribution and compared 1-D and 2-D path …
Date:
July 13, 2005
Creator:
Mayeda, K M; Malagnini, L; Phillips, W S; Walter, W R; Dreger, D S & Morasca, P
Object Type:
Article
System:
The UNT Digital Library
20 Letters from citizens regarding the BRAC's very negative effect on the Air National Guard
Community Correspondence - 20 Letters from citizens regarding the BRAC's very negative effect on the Air National Guard.
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
40 Letters from citizens expressing their concerns with the recommendation regarding the Crane Division of the Naval Surface Warfare Center
Community Correspondence - 40 Letters from citizens expressing their concerns with the recommendation regarding the Crane Division of the Naval Surface Warfare Center
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
40 Letters from concerned citizens in reference to NAS Oceana
Community Correspondence - 40 Letters from concerned citizens in reference to NAS Oceana
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
50 Individual Letters from citizens concerned with Cannon Air Force Base
Community Correspondence - 50 Individual Letters from citizens concerned with Cannon Air Force Base
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
58 Form Letters from concerned citizens regarding Niagara Falls Air Force Reserve and Guard Base
Community Correspondence - 58 Form Letters from concerned citizens regarding Niagara Falls Air Force Reserve and Guard Base
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
195 Additional Letters from Concerned Citizens of Pittsburg, PA - from PIT BRAC
195 Additional Letters from Concerned Citizens of Pittsburg, PA - from PIT BRAC
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
248 Form Letters from citizens who are deeply troubled by the DoD recommendation to close the Niagara Falls Air Force Reserve Base
Community Correspondence - 248 Form Letters from citizens who are deeply troubled by the DoD recommendation to close the Niagara Falls Air Force Reserve Base
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
423 Form Letters from citizens in regards to taking Cannon Air Force Base off the base closure list
Community Correspondence - 423 Form Letters from citizens in regards to taking Cannon Air Force Base off the base closure list
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
510 Form Letters from concerned citizens asking for the Commission to reconsider and take Cannon Air Force Base off the base closure list
Community Correspondence - 510 Form Letters from concerned citizens asking for the Commission to reconsider and take Cannon Air Force Base off the base closure list
Date:
August 13, 2005
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
[16th Annual Celebración Banquet flier]
A document advertising the 16th Annual Celebración Banquet hosted by the UNT Multicultural Center. It lists the details for the event including the speaker, Arnold Velez, the location, date, and time, and ticket costs.
Date:
September 13, 2005
Creator:
University of North Texas. Multicultural Center.
Object Type:
Text
System:
The UNT Digital Library
21st Century Challenges: Transforming Government to Meet Current and Emerging Challenges
Testimony issued by the Government Accountability Office with an abstract that begins "The daunting challenges that face the nation in the 21st century establish the need for the transformation of government and demand fundamental changes in how federal agencies should meet these challenges by becoming flatter, more results-oriented, externally focused, partnership-oriented, and employee-enabling organizations. This testimony addresses how the long-term fiscal imbalance facing the United States, along with other significant trends and challenges, establish the case for change and the need to reexamine the base of the federal government; how federal agencies can transform into high-performing organizations; and how multiple approaches and selected initiatives can support the reexamination and transformation of the government and federal agencies to meet these 21st century challenges."
Date:
July 13, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
2nd American Conference on Neutron Scattering
Final report on 2nd American Conference on Neutron Scattering.
Date:
April 13, 2005
Creator:
Belanger, David P.
Object Type:
Report
System:
The UNT Digital Library
79th Texas Legislature, Regular Session, House Bill 297, Chapter 41
Bill introduced by the Texas House of Representatives relating to changing the title of assistant secretary of state to deputy secretary of state.
Date:
May 13, 2005
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
79th Texas Legislature, Regular Session, House Bill 708, Chapter 42
Bill introduced by the Texas House of Representatives relating to the issuance of permits by the School Land Board authorizing continued use of certain structures on coastal public land.
Date:
May 13, 2005
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
79th Texas Legislature, Regular Session, House Bill 760, Chapter 43
Bill introduced by the Texas House of Representatives relating to fees for registration and inspection of certain fuel measuring and dispensing devices.
Date:
May 13, 2005
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
79th Texas Legislature, Regular Session, House Bill 901, Chapter 44
Bill introduced by the Texas House of Representatives relating to expiration dates for certain licenses issued or renewed by the Department of Agriculture.
Date:
May 13, 2005
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
79th Texas Legislature, Regular Session, Senate Bill 461, Chapter 45
Bill introduced by the Texas Senate relating to the confidentiality of and access to certain personal information in instruments recorded with a county clerk.
Date:
May 13, 2005
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
79th Texas Legislature, Regular Session, Senate Bill 481, Chapter 46
Bill introduced by the Texas Senate relating to creating an offense for the unauthorized operation of a recording device in a motion picture theater.
Date:
May 13, 2005
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
79th Texas Legislature, Regular Session, Senate Bill 1298, Chapter 47
Bill introduced by the Texas Senate relating to restrictions on the transfer of a fuel tank to a metal recycling entity.
Date:
May 13, 2005
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
An Ab Initio Approach Towards Engineering Fischer-Tropsch Surface Chemistry
As petroleum prices continue to rise and the United States seeks to reduce its dependency on foreign oil, there is a renewed interest in the research and development of more efficient and alternative energy sources, such as fuel cells. One approach is to utilize processes that can produce long-chain hydrocarbons from other sources. One such reaction is Fischer-Tropsch synthesis. Fischer-Tropsch synthesis is a process by which syngas (CO and H{sub 2}) is converted to higher molecular weight hydrocarbons. The reaction involves a complex set of bond-breaking and bond-making reactions, such as CO and H{sub 2} activation, hydrocarbon hydrogenation reactions, and hydrocarbon coupling reactions. This report details our initial construction of an ab initio based kinetic Monte Carlo code that can be used to begin to simulate Fischer-Tropsch synthesis over model Co(0001) surfaces. The code is based on a stochastic kinetic formalism that allows us to explicitly track the transformation of all reactants, intermediates and products. The intrinsic kinetics for the simulations were derived from the ab initio results that we reported in previous year summaries.
Date:
June 13, 2005
Creator:
Neurock, Matthew
Object Type:
Report
System:
The UNT Digital Library
Abandoned Mine Reclamation Fee on Coal
This report provides a summary about reclamation fee on coal to finance the Abandoned Mine Fund.
Date:
July 13, 2005
Creator:
Noto, Nonna A.
Object Type:
Report
System:
The UNT Digital Library
[Abilene City Council Minutes: 2005]
Ledger containing minutes of the City Council in Abilene, Texas documenting the group's discussions and activities from January 13, 2005 to December 20, 2005.
Date:
2005-01-13/2005-12-20
Creator:
Abilene (Tex.)
Object Type:
Book
System:
The Portal to Texas History
An Abridged View of the Gang Deterrence and Community Protection Act (H.R. 1279)
This report summarizes the Gang Deterrence and Community Protection Act (H.R. 1279) and its effects. This includes information such as an increase in criminal penalties assigned to violent crimes and expanding the instances where juveniles could be tried as adults. For more information see CRS Report RL32946 "Gang Deterrence A Legal Analysis of H.R. 1279 With References to S. 155.
Date:
June 13, 2005
Creator:
Doyle, Charles
Object Type:
Report
System:
The UNT Digital Library