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375 Matching Results
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Texas Water Development Board Manual for Permitting Process: Guidance Manual for Permitting Class I and Class II Wells for the Injection and Disposal of Desalination Concentrate
Report on the permitting process for the use and disposal of desalination concentrate in Class I and II wells.
Date:
May 6, 2014
Creator:
CDM Smith
Object Type:
Report
System:
The Portal to Texas History
Implementing the DOE M 441.1-1 Nuclear Materials Packaging Manual at Lawrence Livermore National Laboratory
None
Date:
June 6, 2013
Creator:
Riley, D C
Object Type:
Article
System:
The UNT Digital Library
Summary Report of the Consultants Meeting on Further Development of EXFOR
N/A
Date:
March 6, 2012
Creator:
D., Brown
Object Type:
Report
System:
The UNT Digital Library
Report of On-Site Inspection Workshop-20
None
Date:
February 6, 2013
Creator:
Sweeney, J.
Object Type:
Report
System:
The UNT Digital Library
Performance Analysis: Control of Hazardous Energy
None
Date:
October 6, 2010
Creator:
De Grange, C E; Freeman, J W & Kerr, C E
Object Type:
Report
System:
The UNT Digital Library
Comment on “Precise half-life values for two-neutrino double beta decay”
The results by A.S. Barabash [Phys. Rev. C 81, 035501 (2010)] are shown to be incomplete.
Date:
May 6, 2010
Creator:
Pritychenko, B.
Object Type:
Report
System:
The UNT Digital Library
LLNL Radiation Protection Program (RPP) Rev 9.2, Implementation of 10 CFR 835, 'Occupational Radiation Protection'
None
Date:
June 6, 2011
Creator:
Shingleton, K L
Object Type:
Report
System:
The UNT Digital Library
Recovery Act: Novel Kerf-Free PV Wafering that provides a low-cost approach to generate wafers from 150um to 50um in thickness
The technical paper summarizes the project work conducted in the development of Kerf-Free silicon wafering equipment for silicon solar wafering. This new PolyMax technology uses a two step process of implantation and cleaving to exfoliate 50um to 120um wafers with thicknesses ranging from 50um to 120um from a 125mm or 156mm pseudo-squared silicon ingot. No kerf is generated using this method of wafering. This method of wafering contrasts with the current method of making silicon solar wafers using the industry standard wire saw equipment. The report summarizes the activity conducted by Silicon Genesis Corporation in working to develop this technology further and to define the roadmap specifications for the first commercial proto-type equipment for high volume solar wafer manufacturing using the PolyMax technology.
Date:
May 6, 2013
Creator:
Fong, Theodore E.
Object Type:
Report
System:
The UNT Digital Library
COG11.1 Code Features for SHielding and Criticality Safety Analyses
None
Date:
August 6, 2013
Creator:
Heinrichs, D.; Kim, S.; Biswas, D.; Chow, P.; Buck, R.; Lent, E. et al.
Object Type:
Article
System:
The UNT Digital Library
Scaling hypre's multigrid solvers to 100,000 cores
None
Date:
April 6, 2011
Creator:
Baker, A H; Falgout, R D; Kolev, T V & Yang, U M
Object Type:
Article
System:
The UNT Digital Library
Development of a Steady State Simulation Code for Klystron Amplifiers
None
Date:
December 6, 2012
Creator:
Marrelli, C.; Spataro, B.; Migliorati, M.; Mostacci, A.; Palumbo, L. & Tantawi, S.G.
Object Type:
Article
System:
The UNT Digital Library
Ka-Band ARM Zenith Radar (KAZR) Instrument Handbook
The Ka-band ARM zenith radar (KAZR) is a zenith-pointing Doppler cloud radar operating at approximately 35 GHz. The KAZR is an evolutionary follow-on radar to ARM's widely successful millimeter-wavelength cloud radar (MMCR). The main purpose of the KAZR is to provide vertical profiles of clouds by measuring the first three Doppler moments: reflectivity, radial Doppler velocity, and spectra width. At the sites where the dual-polarization measurements are made, the Doppler moments for the cross-polarization channel are also available. In addition to the moments, velocity spectra are also continuously recorded for each range gate.
Date:
March 6, 2012
Creator:
Widener, K.; Bharadwaj, N. & Johnson, K.
Object Type:
Report
System:
The UNT Digital Library
Strength Measurements of Archive K Basin Sludge Using a Soil Penetrometer
Spent fuel radioactive sludge present in the K East and K West spent nuclear fuel storage basins now resides in the KW Basin in six large underwater engineered containers. The sludge will be dispositioned in two phases under the Sludge Treatment Project: (1) hydraulic retrieval into sludge transport and storage containers (STSCs) and transport to interim storage in Central Plateau and (2) retrieval from the STSCs, treatment, and packaging for shipment to the Waste Isolation Pilot Plant. In the years the STSCs are stored, sludge strength is expected to increase through chemical reaction, intergrowth of sludge crystals, and compaction and dewatering by settling. Increased sludge strength can impact the type and operation of the retrieval equipment needed prior to final sludge treatment and packaging. It is important to determine whether water jetting, planned for sludge retrieval from STSCs, will be effective. Shear strength is a property known to correlate with the effectiveness of water jetting. Accordingly, the unconfined compressive strengths (UCS) of archive K Basin sludge samples and sludge blends were measured using a pocket penetrometer modified for hot cell use. Based on known correlations, UCS values can be converted to shear strengths. Twenty-six sludge samples, stored in hot cells …
Date:
December 6, 2011
Creator:
Delegard, Calvin H.; Schmidt, Andrew J. & Chenault, Jeffrey W.
Object Type:
Report
System:
The UNT Digital Library
Exploration of Optimization Options for Increasing Performance of a GPU Implementation of a Three-dimensional Bilateral Filter
This report explores using GPUs as a platform for performing high performance medical image data processing, specifically smoothing using a 3D bilateral filter, which performs anisotropic, edge-preserving smoothing. The algorithm consists of a running a specialized 3D convolution kernel over a source volume to produce an output volume. Overall, our objective is to understand what algorithmic design choices and configuration options lead to optimal performance of this algorithm on the GPU. We explore the performance impact of using different memory access patterns, of using different types of device/on-chip memories, of using strictly aligned and unaligned memory, and of varying the size/shape of thread blocks. Our results reveal optimal configuration parameters for our algorithm when executed sample 3D medical data set, and show performance gains ranging from 30x to over 200x as compared to a single-threaded CPU implementation.
Date:
January 6, 2012
Creator:
Bethel, E. Wes & Bethel, E. Wes
Object Type:
Report
System:
The UNT Digital Library
INDEPENDENT VERIFICATION SURVEY OF THE SPRU LOWER LEVEL HILLSIDE AREA AT THE KNOLLS ATOMIC POWER LABORATORY NISKAYUNA, NEW YORK
During August 10, 2011 through August 19, 2011, and October 23, 2011 through November 4, 2011, ORAU/ORISE conducted verification survey activities at the Separations Process Research Unit (SPRU) site that included in-process inspections, surface scans, and soil sampling of the Lower Level Hillside Area. According to the Type-B Investigation Report, Sr-90 was the primary contributor to the majority of the activity (60 times greater than the Cs-137 activity). The evaluation of the scan data and sample results obtained during verification activities determined that the primary radionuclide of concern, Sr-90, was well below the agreed upon soil cleanup objective (SCO) of 30 pCi/g for the site. However, the concentration of Cs-137 in the four judgmental samples collected in final status survey (FSS) Units A and B was greater than the SCO. Both ORAU and aRc surveys identified higher Cs-137 concentrations in FSS Units A and B; the greatest concentrations were indentified in FSS Unit A.
Date:
June 6, 2012
Creator:
Harpenau, Evan M. & Weaver, Phyllis C.
Object Type:
Report
System:
The UNT Digital Library
A General Nonlinear Fluid Model for Reacting Plasma-Neutral Mixtures
A generalized, computationally tractable fluid model for capturing the effects of neutral particles in plasmas is derived. The model derivation begins with Boltzmann equations for singly charged ions, electrons, and a single neutral species. Electron-impact ionization, radiative recombination, and resonant charge exchange reactions are included. Moments of the reaction collision terms are detailed. Moments of the Boltzmann equations for electron, ion, and neutral species are combined to yield a two-component plasma-neutral fluid model. Separate density, momentum, and energy equations, each including reaction transfer terms, are produced for the plasma and neutral equations. The required closures for the plasma-neutral model are discussed.
Date:
April 6, 2012
Creator:
Meier, E T & Shumlak, U
Object Type:
Article
System:
The UNT Digital Library
Transportation Shock and Vibration Literature Review
This report fulfills the M4 milestone M4FT-13OR08220112, "Report Documenting Experimental Activities." The purpose of this report is to document the results of a literature review conducted of studies related to the vibration and shock associated with the normal conditions of transport for rail shipments of used nuclear fuel from commercial light-water reactors. As discussed in Adkins (2013), the objective of this report is to determine if adequate data exist that would enable the impacts of the shock and vibration associated with the normal conditions of transport on commercial light-water reactor used nuclear fuel shipped in current generation rail transportation casks to be realistically modeled.
Date:
June 6, 2013
Creator:
Maheras, Steven J.; Lahti, Erik A. & Ross, Steven B.
Object Type:
Report
System:
The UNT Digital Library
Methanogenic Conversion of CO2 Into CH4
This SBIR project evaluated the potential to remediate geologic CO2 sequestration sites into useful methane gas fields by application of methanogenic bacteria. Such methanogens are present in a wide variety of natural environments, converting CO2 into CH4 under natural conditions. We conclude that the process is generally feasible to apply within many of the proposed CO2 storage reservoir settings. However, extensive further basic R&D still is needed to define the precise species, environments, nutrient growth accelerants, and economics of the methanogenic process. Consequently, the study team does not recommend Phase III commercial application of the technology at this early phase.
Date:
May 6, 2012
Creator:
Stevens, S.H., Ferry, J.G., Schoell, M.
Object Type:
Report
System:
The UNT Digital Library
NLM Evidence-based Information at Your Fingertips - NBNA
The workshop titled, National Library of Medicine: Evidence-based Information At Your Fingertips, is a computer training class designed to meet the needs of nurses who require access to information on specific medical topics and on the adverse health effects of exposure to hazardous substances. The Specialized Information Services Division of the National Library of Medicine (NLM) is sponsoring this workshop for the National Black Nurses Association to increase the awareness of health professionals of the availability and value of the free NLM medical, environmental health, and toxicology databases.
Date:
August 6, 2010
Creator:
Womble, R.
Object Type:
Book
System:
The UNT Digital Library
Reaching Grid Parity Using BP Solar Crystalline Silicon Technology: A Systems Class Application
The primary target market for this program was the residential and commercial PV markets, drawing on BP Solar's premium product and service offerings, brand and marketing strength, and unique routes to market. These two markets were chosen because: (1) in 2005 they represented more than 50% of the overall US PV market; (2) they are the two markets that will likely meet grid parity first; and (3) they are the two market segments in which product development can lead to the added value necessary to generate market growth before reaching grid parity. Federal investment in this program resulted in substantial progress toward the DOE TPP target, providing significant advancements in the following areas: (1) Lower component costs particularly the modules and inverters. (2) Increased availability and lower cost of silicon feedstock. (3) Product specifically developed for residential and commercial applications. (4) Reducing the cost of installation through optimization of the products. (5) Increased value of electricity in mid-term to drive volume increases, via the green grid technology. (6) Large scale manufacture of PV products in the US, generating increased US employment in manufacturing and installation. To achieve these goals BP Solar assembled a team that included suppliers of critical materials, …
Date:
December 6, 2010
Creator:
Cunningham, Daniel W.; Wohlgemuth, John; Carlson, David E.; Clark, Roger F.; Gleaton, Mark; Posbic, John P. et al.
Object Type:
Report
System:
The UNT Digital Library
Design of Accelerator Online Simulator Server Using Structured Data
Model based control plays an important role for a modern accelerator during beam commissioning, beam study, and even daily operation. With a realistic model, beam behaviour can be predicted and therefore effectively controlled. The approach used by most current high level application environments is to use a built-in simulation engine and feed a realistic model into that simulation engine. Instead of this traditional monolithic structure, a new approach using a client-server architecture is under development. An on-line simulator server is accessed via network accessible structured data. With this approach, a user can easily access multiple simulation codes. This paper describes the design, implementation, and current status of PVData, which defines the structured data, and PVAccess, which provides network access to the structured data.
Date:
July 6, 2012
Creator:
Shen, Guobao; /Brookhaven; Chu, Chungming; /SLAC; Wu, Juhao; /SLAC et al.
Object Type:
Article
System:
The UNT Digital Library
Aircraft Cabin Environmental Quality Sensors
The Indoor Environment Department at Lawrence Berkeley National Laboratory (LBNL) teamed with seven universities to participate in a Federal Aviation Administration (FAA) Center of Excellence (COE) for research on environmental quality in aircraft. This report describes research performed at LBNL on selecting and evaluating sensors for monitoring environmental quality in aircraft cabins, as part of Project 7 of the FAA's COE for Airliner Cabin Environmental Research (ACER)1 effort. This part of Project 7 links to the ozone, pesticide, and incident projects for data collection and monitoring and is a component of a broader research effort on sensors by ACER. Results from UCB and LBNL's concurrent research on ozone (ACER Project 1) are found in Weschler et al., 2007; Bhangar et al. 2008; Coleman et al., 2008 and Strom-Tejsen et al., 2008. LBNL's research on pesticides (ACER Project 2) in airliner cabins is described in Maddalena and McKone (2008). This report focused on the sensors needed for normal contaminants and conditions in aircraft. The results are intended to complement and coordinate with results from other ACER members who concentrated primarily on (a) sensors for chemical and biological pollutants that might be released intentionally in aircraft; (b) integration of sensor systems; and …
Date:
May 6, 2010
Creator:
Gundel, Lara; Kirchstetter, Thomas; Spears, Michael & Sullivan, Douglas
Object Type:
Report
System:
The UNT Digital Library
Acceleration of Radiance for Lighting Simulation by Using Parallel Computing with OpenCL
We report on the acceleration of annual daylighting simulations for fenestration systems in the Radiance ray-tracing program. The algorithm was optimized to reduce both the redundant data input/output operations and the floating-point operations. To further accelerate the simulation speed, the calculation for matrix multiplications was implemented using parallel computing on a graphics processing unit. We used OpenCL, which is a cross-platform parallel programming language. Numerical experiments show that the combination of the above measures can speed up the annual daylighting simulations 101.7 times or 28.6 times when the sky vector has 146 or 2306 elements, respectively.
Date:
September 6, 2011
Creator:
Zuo, Wangda; McNeil, Andrew; Wetter, Michael & Lee, Eleanor
Object Type:
Article
System:
The UNT Digital Library
Feasibility Study For Use Of Commercial Cask Vendor Dry Transfer Systems To Unload Used Fuel Assemblies In L-Area
The purpose of this study is to determine whether a commercial dry transfer system (DTS) could be used for loading or unloading used nuclear fuel (UNF) in L-Basin and to determine if a DTS pool adapter could be made for L-Basin Transfer Pit #2 that could accommodate a variety of DTS casks and fuel baskets or canisters up to 24” diameter.[1, 2] This study outlines the technical feasibility of accommodating different vendor dry transfer systems in the L-Basin Transfer Bay with a general work scope. It identifies equipment needing development, facility modifications, and describes the needed analyses and calculations. After reviewing the L-Basin Transfer Bay area layout and information on the only DTS system currently in use for the Nuclear Assurance Corporation Legal Weight Truck cask (NAC LWT), the authors conclude that use of a dry transfer cask is feasible. AREVA was contacted and acknowledged that they currently do not have a design for a dry transfer cask for their new Transnuclear Long Cask (TN-LC) cask. Nonetheless, this study accounted for a potential future DTS from AREVA to handle fuel baskets up to 18” in diameter. Due to the layout of the Transfer Bay, it was determined that a DTS …
Date:
February 6, 2014
Creator:
Krementz, Dan; Rose, David & Dunsmuir, Mike
Object Type:
Report
System:
The UNT Digital Library