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478 Matching Results
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Dynamic structure factor in warm dense beryllium
None
Date:
April 5, 2012
Creator:
Glenzer, S H; Fortmann, C; Doeppner, T; Plagemann, K U; Sperling, P; Thiele, R et al.
Object Type:
Article
System:
The UNT Digital Library
Fundamental Physics at the Intensity Frontier. Report of the Workshop Held December 2011 in Rockville, MD.
Particle physics aims to understand the universe around us. The Standard Model of particle physics describes the basic structure of matter and forces, to the extent we have been able to probe thus far. However, it leaves some big questions unanswered. Some are within the Standard Model itself, such as why there are so many fundamental particles and why they have different masses. In other cases, the Standard Model simply fails to explain some phenomena, such as the observed matter-antimatter asymmetry in the universe, the existence of dark matter and dark energy, and the mechanism that reconciles gravity with quantum mechanics. These gaps lead us to conclude that the universe must contain new and unexplored elements of Nature. Most of particle and nuclear physics is directed towards discovering and understanding these new laws of physics. These questions are best pursued with a variety of approaches, rather than with a single experiment or technique. Particle physics uses three basic approaches, often characterized as exploration along the cosmic, energy, and intensity frontiers. Each employs different tools and techniques, but they ultimately address the same fundamental questions. This allows a multi-pronged approach where attacking basic questions from different angles furthers knowledge and provides …
Date:
June 5, 2012
Creator:
Hewett, J. L.; Weerts, H.; Brock, R.; Butler, J. N.; Casey, B. C. K.; Lu, Z. T. et al.
Object Type:
Report
System:
The UNT Digital Library
Final Report
The purpose of this project was to better understand the 'Multiscale Dynamics of Relaxor Ferroelectrics'. The output of the project is summarized in the narrative. The results of the work were presented at a number of different conferences and four papers were written, the references to which are also indicated in the report and which have also been uploaded on e-link. The multiscale dynamics of relaxors was clearly identified in the three characteristic temperatures that were identified. In particular, we were the first group to identify an intermediate temperature, T*, at which the correlations between off-center ions in relaxor cross-over from being dynamic to being static and giving rise to the characteristic relaxor behavior in the dielectric constant. Other groups have now confirmed the existence of such an intermediate temperature. We also made and reported two other observations: (1) a coherent interference phenomena (EIT-like effect) near the transition of several relaxors, which provides information on the nature and mechanism of the transition; and (2) in a similar way, inelastic neutron scattering results were interpreted as resonant scattering of acoustic phonons by localized modes in polar nanodomains. In parallel with the neutron scattering work, we also developed a theory of the …
Date:
April 5, 2012
Creator:
Toulouse, J.
Object Type:
Report
System:
The UNT Digital Library
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 5, Ed. 1 Thursday, April 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 96, Ed. 1 Thursday, July 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
July 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 278, Ed. 1 Thursday, January 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 377, Ed. 1 Wednesday, September 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
September 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 42, No. 581, Ed. 1 Thursday, January 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 4, Ed. 1 Thursday, April 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 36, No. 155, Ed. 1 Wednesday, September 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
September 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Austin, Tex.), Vol. 35, No. 9, Ed. 1 Thursday, April 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Austin, Tex.), Vol. 35, No. 22, Ed. 1 Thursday, July 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
July 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 36, No. 3, Ed. 1 Thursday, April 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
April 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 431, Ed. 1 Friday, October 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
October 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 35, No. 276, Ed. 1 Thursday, January 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 36, No. 94, Ed. 1 Thursday, July 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
July 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 533, Ed. 1 Wednesday, December 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
December 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 36, No. 95, Ed. 1 Thursday, July 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
July 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 277, Ed. 1 Thursday, January 5, 2012
Free weekly newspaper that includes business and classified advertising.
Date:
January 5, 2012
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Final Report on Improved Creep-Fatigue Models on Advanced Materials for Sfr Applications.
None
Date:
November 5, 2012
Creator:
Li, M.; Soppet, W.K.; Majumdar, S.; Rink, D. & Natesan, K. (NE ADVANCED REACTOR)
Object Type:
Report
System:
The UNT Digital Library
Multi-Scale Mass Transfer Processes Controlling Natural Attenuation and Engineered Remediation: An IFRC Focused on Hanford’s 300 Area Uranium Plume January 2011 to January 2012
The Integrated Field Research Challenge (IFRC) at the Hanford Site 300 Area uranium (U) plume addresses multi-scale mass transfer processes in a complex subsurface biogeochemical setting where groundwater and riverwater interact. A series of forefront science questions on reactive mass transfer motivates research. These questions relate to the effect of spatial heterogeneities; the importance of scale; coupled interactions between biogeochemical, hydrologic, and mass transfer processes; and measurements and approaches needed to characterize and model a mass-transfer dominated biogeochemical system. The project was initiated in February 2007, with CY 2007, CY 2008, CY 2009, and CY 2010 progress summarized in preceding reports. A project peer review was held in March 2010, and the IFRC project acted upon all suggestions and recommendations made in consequence by reviewers and SBR/DOE. These responses have included the development of 'Modeling' and 'Well-Field Mitigation' plans that are now posted on the Hanford IFRC web-site, and modifications to the IFRC well-field completed in CY 2011. The site has 35 instrumented wells, and an extensive monitoring system. It includes a deep borehole for microbiologic and biogeochemical research that sampled the entire thickness of the unconfined 300 A aquifer. Significant, impactful progress has been made in CY 2011 including: …
Date:
March 5, 2012
Creator:
Zachara, John M.; Bjornstad, Bruce N.; Christensen, John N.; Conrad, Mark S.; Fredrickson, Jim K.; Freshley, Mark D. et al.
Object Type:
Report
System:
The UNT Digital Library
Review of the WECC EDT phase 2 EIM benefits analysis and results report.
A region-wide Energy Imbalance Market (EIM) was recently proposed by the Western Electricity Coordinating Council (WECC). In order for the Western Area Power Administration (Western) to make more informed decisions regarding its involvement in the EIM, Western asked Argonne National Laboratory (Argonne) to review the EIM benefits study (the October 2011 revision) performed by Energy and Environmental Economics, Inc. (E3). Key components of the E3 analysis made use of results from a study conducted by the National Renewable Energy Laboratory (NREL); therefore, we also reviewed the NREL work. This report examines E3 and NREL methods and models used in the EIM study. Estimating EIM benefits is very challenging because of the complex nature of the Western Interconnection (WI), the variability and uncertainty of renewable energy resources, and the complex decisions and potentially strategic bidding of market participants. Furthermore, methodologies used for some of the more challenging aspects of the EIM have not yet matured. This review is complimentary of several components of the EIM study. Analysts and modelers clearly took great care when conducting detailed simulations of the WI using well-established industry tools under stringent time and budget constraints. However, it is our opinion that the following aspects of the …
Date:
April 5, 2012
Creator:
Veselka, T.D.; Poch, L.A. & Botterud, A. (Decision and Information Sciences)
Object Type:
Report
System:
The UNT Digital Library
Final Report for "Cloud-Aerosol Physics in Super-Parameterized Atmospheric Regional Climate Simulations (CAP-SPARCS)" (DE-SC0002003) for 8/15/2009 through 8/14/2012
Improving the representation of local and non-local aerosol interactions in state-of-the-science regional climate models is a priority for the coming decade (Zhang, 2008). With this aim in mind, we have combined two new technologies that have a useful synergy: (1) an aerosol-enabled regional climate model (Advanced Weather Research and Forecasting Model with Chemistry WRF-Chem), whose primary weakness is a lack of high quality boundary conditions and (2) an aerosol-enabled multiscale modeling framework (PNNL Multiscale Aerosol Climate Model (MACM)), which is global but captures aerosol-convection-cloud feedbacks, and thus an ideal source of boundary conditions. Combining these two approaches has resulted in an aerosol-enabled modeling framework that not only resolves high resolution details in a particular region, but crucially does so within a global context that is similarly faithful to multi-scale aerosol-climate interactions. We have applied and improved the representation of aerosol interactions by evaluating model performance over multiple domains, with (1) an extensive evaluation of mid-continent precipitation representation by multiscale modeling, (2) two focused comparisons to transport of aerosol plumes to the eastern United States for comparison with observations made as part of the International Consortium for Atmospheric Research on Transport and Transformation (ICARTT), with the first being idealized and the …
Date:
November 5, 2012
Creator:
Russell, Lynn M. & Somerville, Richard C. J.
Object Type:
Report
System:
The UNT Digital Library
The United States Support Program and IAEA Safeguards
N/A
Date:
October 5, 2012
Creator:
E., Pepper S.
Object Type:
Article
System:
The UNT Digital Library