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510 Matching Results
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81.114- University Reactor Infrastructure and Education Support / Prompt Gamma-ray Activation Analysis of Lithioum Ion Battery Cathodes
This project focuses on the use of the Prompt Gamma-ray Activation Analysis (PGAA) technique available at the Nuclear Engineering Teaching Laboratory of the University of Texas at Austin to precisely determine the hydrogen (proton) contents in layered oxide cathode samples obtained by chemical lithium extraction in order to obtain a better understanding of the factors limiting the practical capacities and overall performance of lithium ion battery cathodes. The project takes careful precautionary experimental measures to avoid proton contamination both from solvents used in chemical delithiation and from ambient moisture. The results obtained from PGAA are complemented by the data obtained from other techniques such as thermogravimetric analysis, redox titration, atomic absorption spectroscopy, X-ray diffraction, and mass spectroscopic analysis of the evolved gas on heating. The research results broaden our understanding of the structure-property-performance relationships of lithium ion battery cathodes and could aid the design and development of new better performing lithium ion batteries for consumer (portable and electric vehicles), military, and space applications.
Date:
November 11, 2006
Creator:
Manthiram, Arumugam & Landsberger, S.
Object Type:
Report
System:
The UNT Digital Library
2001 DC Lecture Series: The New Biology - Challenges and Opportunities
The Whitehead Institute for Biomedical Research, in collaboration with Center for Strategic and International Studies (CSIS), developed a series of seminars, ''The New Biology: Challenges and Opportunities'', to stimulate dialogue between leaders in science, medicine, law, biotechnology and senior government policymakers on matters that will shape much of the genomic revolution's impact on individuals and institutions in this country.
Date:
April 11, 2006
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
2005 Quantum Control of Light and Matter - Conference July 31 - August 5, 2005
This report is about Quantum Control of Light and Matter Gordon Research Conference
Date:
September 11, 2006
Creator:
Corkum, Paul B.
Object Type:
Article
System:
The UNT Digital Library
2006 Multiphoton Processes Gordon Conference - June 11-16
The first Gordon Research Conference on Multiphoton Processes, was held in 1982. The meeting continues to evolve as it embraces both the rapid technological and intellectual growth in the field as well as the multi-disciplinary expertise of the participants. Current areas of interest include: (1) Ionization/Dissociation of Atoms and Molecules in Intense Laser Fields; (2) Frequency Domain Multi-Photon and Multiple-Resonance Spectroscopies of Molecules; (3) Time-Resolved Photoelectron Spectroscopy; (4) Ultrafast Pump-Probe Spectroscopy; (5) Coherent Strong-Field Manipulation of Atoms and Molecules; (6) High-Harmonic Generation; (7) Attosecond Pulse Generation and Measurement; and (8) Super-Intense Laser-Matter Interactions. In developing the program, the conference organizers will strive to blur traditional disciplinary boundaries, involving chemists, physicists, and optical engineers, representing both experiment and theory, as presenters and discussion leaders. The broad range of expertise and different perspectives of attendees should provide a stimulating and unique environment for solving problems and developing new ideas in this rapidly evolving field.
Date:
June 11, 2006
Creator:
Jones, Robert Rivers
Object Type:
Article
System:
The UNT Digital Library
2006 U.S. Department of Energy Strategic Plan: Discovering the Solutions to Power and Secure America’s Future
The Department of Energy Organization Act, which created DOE, was enacted in 1977 and DOE officially came into existence in October of that year. That law brought together for the first time, not only most of the government’s energy programs, but also science and technology programs and defense responsibilities that included the design, construction, and testing of nuclear weapons. Over its history, DOE has shifted its emphasis and focus as the energy and security needs of the Nation have changed. Today, DOE stands at the forefront of helping the Nation meet our energy, scientific, environmental, and national security goals. These include developing and deploying new energy technologies, reducing our dependence on foreign energy sources, protecting our nuclear weapons stockpile, and ensuring that America remains competitive in the global marketplace. To help achieve these goals, President Bush has launched two key initiatives: the American Competitiveness Initiative (ACI) and the Advanced Energy Initiative (AEI). The President launched these initiatives recognizing that science, technology, and engineering hold the answers to many of the critical challenges our world faces. These new initiatives to spur scientific innovation and technology development expand DOE’s continuing support for the competitive energy markets, both domestically and internationally, and of …
Date:
October 11, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
[2nd Annual Weekend Festival of Black Dance, performance tape]
Video recording from The Black Academy of Arts and Letters recorded during their 2nd annual weekend festival of black dance held over the weekend of May 10-11, 2006. The footage shows the performance held on May 11th with Legends of West Africa dancers and drummers performing
Date:
May 11, 2006
Creator:
Boyd, Kenneth
Object Type:
Video
System:
The UNT Digital Library
[2nd Annual Weekend Festival of Black Dance, tape 1 of 2]
Video recording from The Black Academy of Arts and Letters recorded during their 2nd annual weekend festival of black dance held over the weekend of May 10-11, 2006. The footage shows the performance held on May 11th with Legends of West Africa dancers and drummers performing the first act. The tape ends with the beginning of the intermission.
Date:
May 11, 2006
Creator:
King, Curtis
Object Type:
Video
System:
The UNT Digital Library
[2nd Annual Weekend Festival of Black Dance, tape 2 of 2]
Video recording from The Black Academy of Arts and Letters recorded during their 2nd annual weekend festival of black dance held over the weekend of May 10-11, 2006. The footage shows the performance held on May 11th begins directly after the intermission with the second act of the Dallas Black Dance Theatre. The tape ends with brief post-performance audience interviews.
Date:
May 11, 2006
Creator:
Legends of West Africa; Dallas Black Dance Theatrre & King, Curtis
Object Type:
Video
System:
The UNT Digital Library
A8 - Base Input
Contains base input from Fort Monmouth, NJ
Date:
January 11, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
An Ab Initio Approach Towards Engineering Fischer-Tropsch Surface Chemistry
One of the greatest societal challenges over the next decade is the production of cheap, renewable energy for the 10 billion people that inhabit the earth. This will require the development of various energy sources which will likely include fuels derived from methane, coal, and biomass and alternatives sources such as solar, wind and nuclear energy. One approach will be to synthesize gasoline and other fuels from simpler hydrocarbons such as CO derived from methane or other U.S. based sources such as coal. Syngas (CO and H{sub 2}) can be readily converted into higher molecular weight hydrocarbons through Fischer-Tropsch synthesis. Fischer-Tropsch (FT) synthesis involves the adsorption and the activation of CO and H{sub 2}, the subsequent propagation steps including hydrogenation and carbon-carbon coupling, followed by chain termination reactions. The current commercial catalysts are supported Co and Co-alloys particles. This project set out with the following objectives in mind: (1) understand the reaction mechanisms that control FT kinetics, (2) predict how the intrinsic metal-adsorbate bond affects the sequence of elementary steps in FT, (3) establish the effects of the reaction environment on catalytic activity and selectivity, (4) construct a first-principles based algorithm that can incorporate the detailed atomic surface structure and …
Date:
September 11, 2006
Creator:
Neurock, Matthew
Object Type:
Report
System:
The UNT Digital Library
Accurate Method for Forward and Reverse Bias Curve Fitting of TPV I-V Data
None
Date:
May 11, 2006
Creator:
Danielson, L. & Depoy, D.
Object Type:
Report
System:
The UNT Digital Library
AF2 - Base Input
Contains base input from Portland International Airport Air Guard Station, OR
Date:
January 11, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
AF47 - Base Input
Contains base input from Ellington Air Guard Station, TX
Date:
January 11, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Afghanistan: Post-War Governance, Security, and U.S. Policy
The United States and its allies are helping Afghanistan emerging from more than 22 years of warfare, although substantial risk to Afghan stability remains. Before the U.S. military campaign against the orthodox Islamist Taliban movement began on October 7, 2001, Afghanistan had been mired in conflict since the Soviet invasion of Afghanistan in 1979. The defeat of the Taliban has enabled the United States and its coalition partners to send forces throughout Afghanistan to search for Taliban and Al Qaeda fighters and leaders that remain at large, including Osama bin Laden. As the war against remaining Al Qaeda and Taliban elements winds down, the United States is shifting its military focus toward stabilizing the interim government, including training a new Afghan national army, and supporting the international security force (ISAF) that is helping the new government provide security.
Date:
January 11, 2006
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
AGN Feedback And Evolution of Radio Sources: Discovery of An X-Ray Cluster Associated With Z=1 Quasar
We report the first significant detection of an X-ray cluster associated with a powerful (L{sub bol} {approx} 10{sup 47} erg sec{sup -1}) radio-loud quasar at high redshift (z=1.06). Diffuse X-ray emission is detected out to {approx} 120 kpc from the CSS quasar 3C 186. A strong Fe-line emission at the z{sub rest} = 1.06 confirms its thermal nature. We find that the CSS radio source is highly overpressured with respect to the thermal cluster medium by 2-3 orders of magnitude. This provides direct observational evidence that the radio source is not thermally confined as posited in the ''frustrated'' scenario for CSS sources. Instead, the radio source may be young and at an early stage of its evolution. This source provides the first detection of the AGN in outburst in the center of a cooling flow cluster. Powerful radio sources are thought to be triggered by the cooling flows. The evidence for the AGN activity and intermittent outbursts comes from the X-ray morphology of low redshift clusters, which usually do not harbour quasars. 3C186 is a young active radio source which can supply the energy into the cluster and potentially prevent its cooling. We discuss energetics related to the quasar activity …
Date:
January 11, 2006
Creator:
Siemiginowska, Aneta; Cheung, C. C.; LaMassa, S.; Burke, D.; Aldcroft, T. L.; Bechtold, J. et al.
Object Type:
Article
System:
The UNT Digital Library
Agricultural Issues in the 110th Congress
This report considers the issues the 110th Congress was confronted with in relation to agriculture and the issues inherited from the 109th Congress. The report also includes details about the upcoming farm bill and the usual problems that are examined with the creation of a new farm bill.
Date:
December 11, 2006
Creator:
Chite, Ralph M.
Object Type:
Report
System:
The UNT Digital Library
Air Quality Issues and Animal Agriculture: EPA’s Air Compliance Agreement
This report discusses a plan announced by EPA in January 2005, called the Air Compliance Agreement, that would produce air quality monitoring data on animal agriculture emissions from a small number of farms, while at the same time protecting all participants (including farms where no monitoring takes place) through a “safe harbor” from liability under certain provisions of federal environmental laws.
Date:
October 11, 2006
Creator:
Copeland, Claudia
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 130, No. 50, Ed. 1 Thursday, May 11, 2006
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
May 11, 2006
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 107, No. 239, Ed. 1 Wednesday, January 11, 2006
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 11, 2006
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 315, Ed. 1 Tuesday, April 11, 2006
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 11, 2006
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 341, Ed. 1 Thursday, May 11, 2006
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 11, 2006
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 367, Ed. 1 Sunday, June 11, 2006
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 11, 2006
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 108, No. 87, Ed. 1 Tuesday, July 11, 2006
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 11, 2006
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 108, No. 114, Ed. 1 Friday, August 11, 2006
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 11, 2006
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History