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open access

Creation of a GUI for Zori, a Quantum Monte Carlo program, usingRappture

Description: In their research laboratories, academic institutions produce some of the most advanced software for scientific applications. However, this software is usually developed only for local application in the research laboratory or for method development. In spite of having the latest advances in the particular field of science, such software often lacks adequate documentation and therefore is difficult to use by anyone other than the code developers. As such codes become more complex, so typically … more
Date: December 1, 2007
Creator: Olivares-Amaya, R.; Salomon Ferrer, R.; Lester, W. A. Jr. & Amador-Bedolla, C.
Partner: UNT Libraries Government Documents Department
open access

Phase I Water Rental Pilot Project : Snake River Resident Fish and Wildlife Resources and Management Recommendations.

Description: The Idaho Water Rental Pilot Project was implemented as a part of the Non-Treaty Storage Fish and Wildlife Agreement (NTSA) between Bonneville Power Administration and the Columbia Basin Fish and Wildlife Authority. The goal of the project is to improve juvenile and adult salmon and steelhead passage in the lower Snake River with the use of rented water for flow augmentation. The primary purpose of this project is to summarize existing resource information and provide recommendations to protect… more
Date: October 1, 1992
Creator: Riggin, Stacey H. & Hansen, H. Jerome
Partner: UNT Libraries Government Documents Department
open access

CAPTAN: A hardware architecture for integrated data acquisition, control, and analysis for detector development

Description: The Electronic Systems Engineering Department of the Computing Division at the Fermi National Accelerator Laboratory has developed a data acquisition system flexible and powerful enough to meet the needs of a variety of high energy physics applications. The system described in this paper is called CAPTAN (Compact And Programmable daTa Acquisition Node) and its architecture and capabilities are presented in detail here. The three most important characteristics of this system are flexibility, ver… more
Date: November 1, 2008
Creator: Turqueti, Marcos; Rivera, Ryan A.; Prosser, Alan; Andresen, Jeffry; Chramowicz, John & /Fermilab
Partner: UNT Libraries Government Documents Department
open access

Integrated Status and Effectiveness Monitoring Program, Entiat River Status and Trend Snorkel Surveys and Rotary Smolt Trap Operations in Nason Creek, March 2007 through March 2008.

Description: The Integrated Status and Effectiveness Monitoring Program (ISEMP-BPA project No.2003-0017) has been created as a cost effective means of developing protocols and new technologies, novel indicators, sample designs, analytical, data management and communication tools and skills, and restoration experiments that support the development of a region-wide Research, Monitoring and Evaluation (RME) program to assess the status of anadromous salmonid populations, their tributary habitat and restoration… more
Date: March 10, 2008
Creator: Collins, Matthew; Jorgensen, John & Murdock, Keely
Partner: UNT Libraries Government Documents Department
open access

EFFECTS OF ONE WEEK TRITIUM EXPOSURE ON EPDM ELASTOMER

Description: This report documents test results for the exposure of four formulations of EPDM (ethylene-propylene diene monomer) elastomer to tritium gas at one atmosphere for approximately one week and characterization of material property changes and changes to the exposure gas during exposure. All EPDM samples were provided by Los Alamos National Laboratory (LANL). Material properties that were characterized include mass, sample dimensions, appearance, flexibility, and dynamic mechanical properties. The … more
Date: June 7, 2007
Creator: Clark, E
Partner: UNT Libraries Government Documents Department
open access

Truck Essential Power Systems Efficiency Improvements for Medium-Duty Trucks

Description: With a variety of hybrid vehicles available in the passenger car market, electric technologies and components of that scale are becoming readily available. Commercial vehicle segments have lagged behind passenger car markets, leaving opportunities for component and system development. Escalating fuel prices impact all markets and provide motivation for OEMs, suppliers, customers, and end-users to seek new techniques and technologies to deliver reduced fuel consumption. The research presented he… more
Date: December 31, 2007
Creator: Slone, Larry & Birkel, Jeffery
Partner: UNT Libraries Government Documents Department
open access

The Market Viability of Nuclear Hydrogen Technologies.

Description: The Department of Energy Office of Nuclear Energy is supporting system studies to gain a better understanding of nuclear power's potential role in a hydrogen economy and what hydrogen production technologies show the most promise. This assessment includes identifying commercial hydrogen applications and their requirements, comparing the characteristics of nuclear hydrogen systems to those market requirements, evaluating nuclear hydrogen configuration options within a given market, and identifyi… more
Date: April 6, 2007
Creator: Botterud, A.; Conzelmann, G.; Petri, M. C. & Yildiz, B.
Partner: UNT Libraries Government Documents Department
open access

Fabrication and In Vitro Deployment of a Laser-Activated Shape Memory Polymer Vascular Stent

Description: Vascular stents are small tubular scaffolds used in the treatment of arterial stenosis (narrowing of the vessel). Most vascular stents are metallic and are deployed either by balloon expansion or by self-expansion. A shape memory polymer (SMP) stent may enhance flexibility, compliance, and drug elution compared to its current metallic counterparts. The purpose of this study was to describe the fabrication of a laser-activated SMP stent and demonstrate photothermal expansion of the stent in an i… more
Date: April 25, 2007
Creator: Baer, G. M.; Small, W., IV; Wilson, T. S.; Benett, W. J.; Matthews, D. L.; Hartman, J. et al.
Partner: UNT Libraries Government Documents Department
open access

Improving SFR Economics through Innovations from Thermal Design and Analysis Aspects

Description: Achieving economic competitiveness as compared to LWRs and other Generation IV (Gen-IV) reactors is one of the major requirements for large-scale investment in commercial sodium cooled fast reactor (SFR) power plants. Advances in R&D for advanced SFR fuel and structural materials provide key long-term opportunities to improve SFR economics. In addition, other new opportunities are emerging to further improve SFR economics. This paper provides an overview on potential ideas from the perspective … more
Date: June 1, 2008
Creator: Zhao, Haihua; Zhang, Hongbin; Mousseau, Vincent & Peterson, Per F.
Partner: UNT Libraries Government Documents Department
open access

On the Optimal Number of Eigenvectors for Orbit Correction

Description: The singular value decomposition method is widely used for orbit correction in the storage rings. It is a powerful tool for inverting of the usually rectangular response matrices, which usually have rectangular form. Another advantage is flexibility to choose number of eigenvectors for calculation of required strengths of orbit correctors. In particular, by reduction in number of eigenvectors one can average over ensemble the noise in the beam position monitors. A theoretical approach as well a… more
Date: June 23, 2008
Creator: Pinayev,I.
Partner: UNT Libraries Government Documents Department
open access

A High-Flux, Flexible Membrane with Parylene-encapsulated Carbon Nanotubes

Description: We present fabrication and characterization of a membrane based on carbon nanotubes (CNTs) and parylene. Carbon nanotubes have shown orders of magnitude enhancement in gas and water permeability compared to estimates generated by conventional theories [1, 2]. Large area membranes that exhibit flux enhancement characteristics of carbon nanotubes may provide an economical solution to a variety of technologies including water desalination [3] and gas sequestration [4]. We report a novel method of … more
Date: March 14, 2008
Creator: Park, H. G.; In, J.; Kim, S.; Fornasiero, F.; Holt, J. K.; Grigoropoulos, C. P. et al.
Partner: UNT Libraries Government Documents Department
open access

Transferring 2001 National Household Travel Survey

Description: Policy makers rely on transportation statistics, including data on personal travel behavior, to formulate strategic transportation policies, and to improve the safety and efficiency of the U.S. transportation system. Data on personal travel trends are needed to examine the reliability, efficiency, capacity, and flexibility of the Nation's transportation system to meet current demands and to accommodate future demand. These data are also needed to assess the feasibility and efficiency of alterna… more
Date: May 1, 2007
Creator: Hu, Patricia S.; Reuscher, Tim; Schmoyer, Richard L. & Chin, Shih-Miao
Partner: UNT Libraries Government Documents Department
open access

Help for the Developers of Control System Cyber Security Standards

Description: A Catalog of Control Systems Security: Recommendations for Standards Developers (Catalog), aimed at assisting organizations to facilitate the development and implementation of control system cyber security standards, has been developed. This catalog contains requirements that can help protect control systems from cyber attacks and can be applied to the Critical Infrastructures and Key Resources of the United States and other nations. The requirements contained in the catalog are a compilation o… more
Date: May 1, 2008
Creator: Evans, Robert P.
Partner: UNT Libraries Government Documents Department
open access

Laboratory Directed Research and Development Program FY 2004 Annual Report

Description: The Oak Ridge National Laboratory (ORNL) Laboratory Directed Research and Development (LDRD) Program reports its status to the U.S. Department of Energy (DOE) in March of each year. The program operates under the authority of DOE Order 413.2A, 'Laboratory Directed Research and Development' (January 8, 2001), which establishes DOE's requirements for the program while providing the Laboratory Director broad flexibility for program implementation. LDRD funds are obtained through a charge to all La… more
Date: April 1, 2005
Creator: Sjoreen, Terrence P
Partner: UNT Libraries Government Documents Department
open access

Biclustering Protein Complex Interactions with a Biclique Finding Algorithm

Description: Biclustering has many applications in text mining, web clickstream mining, and bioinformatics. When data entries are binary, the tightest biclusters become bicliques. We propose a flexible and highly efficient algorithm to compute bicliques. We first generalize the Motzkin-Straus formalism for computing the maximal clique from L{sub 1} constraint to L{sub p} constraint, which enables us to provide a generalized Motzkin-Straus formalism for computing maximal-edge bicliques. By adjusting paramete… more
Date: December 1, 2006
Creator: Ding, Chris; Zhang, Anne Ya & Holbrook, Stephen
Partner: UNT Libraries Government Documents Department
open access

Pseudo-transient Continuation Based Variable Relaxation Solve in Nonlinear Magnetohydrodynamic Simulations

Description: Efficient and robust Variable Relaxation Solver, based on pseudo-transient continuation, is developed to solve nonlinear anisotropic thermal conduction arising from fusion plasma simulations. By adding first and/or second order artificial time derivatives to the system, this type of method advances the resulting time-dependent nonlinear PDEs to steady state, which is the solution to be sought. In this process, only the stiffness matrix itself is involved so that the numerical complexity and err… more
Date: December 7, 2009
Creator: Chen, Jin
Partner: UNT Libraries Government Documents Department
open access

Liquid storage tanks under vertical excitation

Description: Until recently, the hydrodynamic effects on liquid storage tanks induced by an earthquake excitation were basically treated for the horizontal component of the earthquake. Recent studies, however, showed that the hydrodynamic effects due to the vertical component of an earthquake may be significant. In these studies the tank is assumed to be fixed at the bottom. This paper is concerned with the hydrodynamic behavior of liquid storage tanks induced by vertical earthquake input excitation. First,… more
Date: January 1, 1985
Creator: Philippacopoulos, A.J.
Partner: UNT Libraries Government Documents Department
open access

Response of a base-isolated large liquid metal reactor plant to seismic loads

Description: In recent years, base isolation has been applied to various civil structures such as bridges and buildings for the purpose of reducing its acceleration to below the level of ground accelerations during seismic events. The basic principal of base isolation is to introduce a soft layer of material between structure foundation to allow a degree of flexibility in horizontal motions which could reduce the seismic accelerations during earthquakes. If base isolation is properly designed, it shifts the… more
Date: January 1, 1989
Creator: Chang, Y.W. & Gvildys, J.
Partner: UNT Libraries Government Documents Department
open access

Reconstruction based on flexible prior models

Description: A new approach to Bayesian reconstruction is introduced in which the prior probability distribution is endowed with an inherent geometrical flexibility. This flexibility is achieved through a warping of the coordinate system of the prior distribution into that of the reconstruction. This warping allows various degrees of mismatch between the assumed prior distribution and the actual distribution corresponding to the available measurements. The extent of the mismatch is readily controlled throug… more
Date: January 1, 1992
Creator: Hanson, K. M.
Partner: UNT Libraries Government Documents Department
open access

Physical Stability of Asphalt Emulsion Admix Seal Radon Barrier for Uranium Mill Tailings

Description: Pacific Northwest Laboratory, is investigating the use of an asphalt emulsion admix seal to reduce the release of radon from uranium mill tailings. A key requirement of any cover system is its long-term stability; the cover must withstand failure over very long periods of time. An important determinant of overall cover system stability is the integrity of the 6.35-cm (2.5-in.) thick asphalt admix seal. Therefore, the physical stability of this seal was examined. The investigation considered the… more
Date: September 1, 1983
Creator: Gates, T.E.
Partner: UNT Libraries Government Documents Department
open access

Technical Approach for the Development of DOE Building America Builders Challenge Technology Information Packages (Revised)

Description: The U.S. Department of Energy has issued a challenge to the homebuilding industry to build 220,000 high-performance homes by 2012. To qualify, homes must meet the requirements of a performance path, prescriptive path, or participating in a partner program.
Date: August 1, 2009
Creator: Roberts, D. R. & Anderson, R.
Partner: UNT Libraries Government Documents Department
open access

Durability-Based Design Criteria for a Quasi-Isotropic Carbon-Fiber-Reinforced Thermoplastic Automotive Composite

Description: This report provides recommended durability-based design properties and criteria for a quais-isotropic carbon-fiber thermoplastic composite for possible automotive structural applications. The composite consisted of a PolyPhenylene Sulfide (PPS) thermoplastic matrix (Fortron's PPS - Ticona 0214B1 powder) reinforced with 16 plies of carbon-fiber unidirectional tape, [0?/90?/+45?/-45?]2S. The carbon fiber was Hexcel AS-4C and was present in a fiber volume of 53% (60%, by weight). The overall goal… more
Date: April 1, 2006
Creator: Naus, Dan J; Corum, James; Klett, Lynn B; Davenport, Mike; Battiste, Rick & Simpson, Jr., William A
Partner: UNT Libraries Government Documents Department
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