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474 Matching Results
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Compiling MPI for Many-Core Systems
None
Date:
June 3, 2013
Creator:
Bronevetsky, G; Friedley, A; Hoefler, T; Lumsdaine, A & Quinlan, D
Object Type:
Report
System:
The UNT Digital Library
A Baseline Design for PEP-X: An Ultra-Low Emittance Storage Ring
None
Date:
June 18, 2013
Creator:
Cai, Yunhai; Bane, Karl; Bertsche, Kirk; Chao, Alex; Hettel, Robert; Huang, Xiaobiao et al.
Object Type:
Article
System:
The UNT Digital Library
Collaborative Research: Towards Advanced Understanding and Predictive Capability of Climate Change in the Arctic Using a High-Resolution Regional Arctic Climate Model
The primary research task completed for this project was the development of the Regional Arctic Climate Model (RACM). This involved coupling existing atmosphere, ocean, sea ice, and land models using the National Center for Atmospheric Research (NCAR) Community Climate System Model (CCSM) coupler (CPL7). RACM is based on the Weather Research and Forecasting (WRF) atmospheric model, the Parallel Ocean Program (POP) ocean model, the CICE sea ice model, and the Variable Infiltration Capacity (VIC) land model. A secondary research task for this project was testing and evaluation of WRF for climate-scale simulations on the large pan-Arctic model domain used in RACM. This involved identification of a preferred set of model physical parameterizations for use in our coupled RACM simulations and documenting any atmospheric biases present in RACM.
Date:
June 30, 2013
Creator:
Cassano, John
Object Type:
Report
System:
The UNT Digital Library
Electric Vehicle Preparedness Task 1: Assessment o
The U.S. Department of Energy and the U.S. Departm
Date:
June 1, 2013
Creator:
Sathaye, Nakul; Schey, Steven & Francfort, Jim
Object Type:
Report
System:
The UNT Digital Library
Constraining Dark Matter in Galactic Substructure
In this paper we discuss detection prospects by combining two different aspects of the gamma-ray signal: the angular distribution and the photon counts probability distribution function (PDF).
Date:
June 21, 2013
Creator:
Baxter, Eric J.; Dodelson, Scott; Koushiappas, Savvas M. & Strigari, Louis E.
Object Type:
Article
System:
The UNT Digital Library
Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions at sqrt(S(NN))= 2.76 TeV with the ATLAS Detector at the LHC
None
Date:
June 12, 2013
Creator:
Aad, Georges
Object Type:
Article
System:
The UNT Digital Library
DUAL Gamma-Ray Mission
None
Date:
June 21, 2013
Creator:
Boggs, S.; Wunderer, C.; von Ballmoos, P.; Takahashi, T.; Gehrels, N.; Tueller, J. et al.
Object Type:
Article
System:
The UNT Digital Library
Performance of MicroLink Cells Developed Under Navy STTR: Cooperative Research and Development Final Report, CRADA Number CRD-11-426
Evaluate MicroLink cells as a function of temperature and spectral irradiance following the teams' standard procedures. These measurements will include the standard procedures for evaluating multijunction cells including quantum efficiency measurements and current versus voltage measurements.
Date:
June 1, 2013
Creator:
Emery, K.
Object Type:
Report
System:
The UNT Digital Library
Corrosion and Creep of Candidate Alloys in High Temperature Helium and Steam Environments for the NGNP
This project aims to understand the processes by which candidate materials degrade in He and supercritical water/steam environments characteristic of the current NGNP design. We will focus on understanding the roles of temperature, and carbon and oxygen potential in the 750-850 degree C range on both uniform oxidation and selective internal oxidation along grain boundaries in alloys 617 and 800H in supercritical water in the temperature range 500-600 degree C; and examining the application of static and cyclic stresses in combination with impure He environments in the temperature rang 750-850 degree C; and examining the application of static and cyclic stresses in combination with impure He environments in the temperature range 750-850 degree C over a range of oxygen and carbon potentials in helium. Combined, these studies wil elucidate the potential high damage rate processes in environments and alloys relevant to the NGNP.
Date:
June 21, 2013
Creator:
Was, Gary & Jones, J. W.
Object Type:
Report
System:
The UNT Digital Library
Ion Exchange Testing with SRF Resin FY2012
Ion exchange using spherical resorcinol-formaldehyde (SRF) resin has been selected by the U.S. Department of Energy’s Office of River Protection (DOE-ORP) for use in the Pretreatment Facility (PTF) of the Hanford Tank Waste Treatment and Immobilization Plant (WTP) and for potential application in at-tank deployment. Numerous studies have shown SRF resin to be effective for removing 137Cs from a wide variety of actual and simulated tank waste supernatants (Adamson et al. 2006; Blanchard et al. 2008; Burgeson et al. 2004; Duignan and Nash 2009; Fiskum et al. 2006a; Fiskum et al. 2006b; Fiskum et al. 2006c; Fiskum et al. 2007; Hassan and Adu-Wusu 2003; King et al. 2004; Nash et al. 2006). Prior work at the Pacific Northwest National Laboratory (PNNL) has focused primarily on the loading behavior for 4 to 6 M Na solutions at 25 to 45°C. Recent proposed changes to the WTP ion exchange process baseline indicate that loading may include a broader range of sodium molarities (0.1 to 8 M) and higher temperatures (50°C) to alleviate post-filtration precipitation issues. This report discusses ion exchange loading kinetics testing activities performed in accordance with Test Plan TP-WTPSP-002, Rev. 3.0 , which was prepared and approved in response to …
Date:
June 11, 2013
Creator:
Russell, Renee L.; Rinehart, Donald E. & Peterson, Reid A.
Object Type:
Report
System:
The UNT Digital Library
Supporting 64-bit global indices in Epetra and other Trilinos packages : techniques used and lessons learned.
The Trilinos Project is an effort to facilitate the design, development, integration and ongoing support of mathematical software libraries within an object-oriented framework. It is intended for large-scale, complex multiphysics engineering and scientific applications [2, 4, 3]. Epetra is one of its basic packages. It provides serial and parallel linear algebra capabilities. Before Trilinos version 11.0, released in 2012, Epetra used the C++ int data-type for storing global and local indices for degrees of freedom (DOFs). Since int is typically 32-bit, this limited the largest problem size to be smaller than approximately two billion DOFs. This was true even if a distributed memory machine could handle larger problems. We have added optional support for C++ long long data-type, which is at least 64-bit wide, for global indices. To save memory, maintain the speed of memory-bound operations, and reduce further changes to the code, the local indices are still 32-bit. We document the changes required to achieve this feature and how the new functionality can be used. We also report on the lessons learned in modifying a mature and popular package from various perspectives - design goals, backward compatibility, engineering decisions, C++ language features, effects on existing users and other packages, …
Date:
June 1, 2013
Creator:
Jhurani, Chetan; Austin, Travis M.; Heroux, Michael Allen & Willenbring, James Michael
Object Type:
Report
System:
The UNT Digital Library
Applications of Geothermally-Produced Colloidal Silica in Reservoir Management - Smart Gels
None
Date:
June 19, 2013
Creator:
Hunt, J D; Ezzedine, S M; Bourcier, W & Roberts, S
Object Type:
Report
System:
The UNT Digital Library
Concentrating Solar Power Program Review 2013 (Book) (Revised)
This U.S. Department of Energy (DOE) Concentrating Solar Power Program Review Meeting booklet will be provided to attendees at the Concentrating Solar Power Review Meeting in Phoenix, Arizona on April 23-25, 2013.
Date:
June 1, 2013
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Results on CP Violation and CKM UT Angles from Belle And BaBar
None
Date:
June 14, 2013
Creator:
Mohanty, Gagan B. & Inst., /Tata
Object Type:
Article
System:
The UNT Digital Library
Risk Analysis and Decision Making FY 2013 Milestone Report
Risk analysis and decision making is one of the critical objectives of CCSI, which seeks to use information from science-based models with quantified uncertainty to inform decision makers who are making large capital investments. The goal of this task is to develop tools and capabilities to facilitate the development of risk models tailored for carbon capture technologies, quantify the uncertainty of model predictions, and estimate the technical and financial risks associated with the system. This effort aims to reduce costs by identifying smarter demonstrations, which could accelerate development and deployment of the technology by several years.
Date:
June 1, 2013
Creator:
Engel, David W.; Dalton, Angela C.; Dale, Crystal; Jones, Edward & Thompson, J.
Object Type:
Report
System:
The UNT Digital Library
Utilizing interfaces: One-step forward for rational design of heterogeneous catalysts
As far as heterogeneous catalysts are a composite material, physicochemical properties of the interfaces between individual components should be extensively studied for rational design of catalysts with desired properties. Here, I will present recent computational achievements in following three heterogeneous catalysts where the interface between composing materials plays a critical role
Date:
June 20, 2013
Creator:
Y., Kim H.
Object Type:
Article
System:
The UNT Digital Library
Baryonic B Decays
None
Date:
June 7, 2013
Creator:
Shiu, Jing-Ge & /Taiwan, Natl. Taiwan U.
Object Type:
Article
System:
The UNT Digital Library
Direct Searches for New Physics at the E +- E- B-Factories
None
Date:
June 14, 2013
Creator:
Cervelli, Alberto & /INFN, Pisa /Pisa U.
Object Type:
Article
System:
The UNT Digital Library
Transistor operation and mobility enhancement in top-gated LaAlO_3 / SrTiO_3 heterostructures
None
Date:
June 18, 2013
Creator:
Hosoda, Masayuki; Hikita, Yasuyuki; Hwang, Harold Y. & Bell1, Christopher
Object Type:
Article
System:
The UNT Digital Library
Status and Prospects of the Global Automotive Fuel Cell Industry and Plans for Deployment of Fuel Cell Vehicles and Hydrogen Refueling Infrastructure
Automobile manufacturers leading the development of mass-market fuel cell vehicles (FCVs) were interviewed in Japan, Korea, Germany and the United States. There is general agreement that the performance of FCVs with respect to durability, cold start, packaging, acceleration, refueling time and range has progressed to the point where vehicles that could be brought to market in 2015 will satisfy customer expectations. However, cost and the lack of refueling infrastructure remain significant barriers. Costs have been dramatically reduced over the past decade, yet are still about twice what appears to be needed for sustainable market success. While all four countries have plans for the early deployment of hydrogen refueling infrastructure, the roles of government, industry and the public in creating a viable hydrogen refueling infrastructure remain unresolved. The existence of an adequate refueling infrastructure and supporting government policies are likely to be the critical factors that determine when and where hydrogen FCVs are brought to market.
Date:
June 1, 2013
Creator:
Greene, David L & Duleep, Gopal
Object Type:
Report
System:
The UNT Digital Library
B \to K(*)l l- from B-factories and Tevatron
None
Date:
June 11, 2013
Creator:
Eigen, Gerald
Object Type:
Article
System:
The UNT Digital Library
Adding Complex Terrain and Stable Atmospheric Condition Capability to the Simulator for On/Offshore Wind Farm Applications (SOWFA)
This presentation describes changes made to NREL's OpenFOAM-based wind plant aerodynamics solver so that it can compute the stably stratified atmospheric boundary layer and flow over terrain. Background about the flow solver, the Simulator for Off/Onshore Wind Farm Applications (SOWFA) is given, followed by details of the stable stratification/complex terrain modifications to SOWFA, along with some preliminary results calculations of a stable atmospheric boundary layer and flow over a simple set of hills.
Date:
June 1, 2013
Creator:
Churchfield, M. J.
Object Type:
Presentation
System:
The UNT Digital Library
Wind energy curriculum development at GWU
A wind energy curriculum has been developed at the George Washington University, School of Engineering and Applied Science. Surveys of student interest and potential employers expectations were conducted. Wind industry desires a combination of mechanical engineering training with electrical engineering training. The curriculum topics and syllabus were tested in several graduate/undergraduate elective courses. The developed curriculum was then submitted for consideration.
Date:
June 8, 2013
Creator:
Hsu, Stephen M.
Object Type:
Report
System:
The UNT Digital Library
Engineering Database of Liquid Salt Thermophysical
The purpose of this report is to provide a review
Date:
June 1, 2013
Creator:
Sohal, Manohar S.; Ebner, Matthias A. & Sabhar, Piyush
Object Type:
Report
System:
The UNT Digital Library