UNT Libraries Government Documents Department - 245 Matching Results

Search Results

Results: 1 - 24 next
open access

2012 SRNL-EM VANE RHEOLOGY RESULTS

Description: The vane method has been shown to be an effective tool in measuring the yield stress of both settled and mixed slurries in laboratory bench scale conditions in supporting assessments of both actual and simulant waste slurries. The vane has also been used to characterize dry powders and granular solids, the effect of non-cohesive solids with interstitial fluids and used as a guide to determine if slip is present in the geometries typically used to perform rheological flow curve measurements. Theā€¦ more
Date: August 31, 2012
Creator: Hansen, E.; Marzolf, A. & Hera, K.
Item Type: Refine your search to only Report
open access

Advanced Acid Gas Separation Technology for the Utilization of Low Rank Coals

Description: Air Products has developed a potentially ground-breaking technology ā€“ Sour Pressure Swing Adsorption (PSA) ā€“ to replace the solvent-based acid gas removal (AGR) systems currently employed to separate sulfur containing species, along with CO{sub 2} and other impurities, from gasifier syngas streams. The Sour PSA technology is based on adsorption processes that utilize pressure swing or temperature swing regeneration methods. Sour PSA technology has already been shown with higher rank coals to prā€¦ more
Date: December 31, 2012
Creator: Kloosterman, Jeff
Item Type: Refine your search to only Report
open access

Advanced Electric Submersible Pump Design Tool for Geothermal Applications

Description: Electrical Submersible Pumps (ESPs) present higher efficiency, larger production rate, and can be operated in deeper wells than the other geothermal artificial lifting systems. Enhanced Geothermal Systems (EGS) applications recommend lifting 300 C geothermal water at 80kg/s flow rate in a maximum 10-5/8-inch diameter wellbore to improve the cost-effectiveness. In this paper, an advanced ESP design tool comprising a 1D theoretical model and a 3D CFD analysis has been developed to design ESPs forā€¦ more
Date: May 31, 2012
Creator: Qi, Xuele; Turnquist, Norman & Ghasripoor, Farshad
Item Type: Refine your search to only Article
open access

Advanced Gearless Drivetrain - Phase I Technical Report

Description: Boulder Wind Power (ƃĀƒĆ‚ĀƒĆƒĀ‚Ć‚Ā¢ĆƒĀƒĆ‚Ā‚ĆƒĀ‚Ć‚Ā€ĆƒĀƒĆ‚Ā‚ĆƒĀ‚Ć‚ĀœBWPƃĀƒĆ‚ĀƒĆƒĀ‚Ć‚Ā¢ĆƒĀƒĆ‚Ā‚ĆƒĀ‚Ć‚Ā€ĆƒĀƒĆ‚Ā‚ĆƒĀ‚Ć‚Ā) collaborated with the National Renewable Energy Laboratory (NREL) in Golden, Colorado, to demonstrate the economics of scaling an advanced gearless drivetrain technology to 6MW (and larger) turbine applications. The project goal was to show that this advanced drivetrain technology enables a cost of energy of less than $0.10/kWH in offshore applications. This drivetrain technology achieves this Cost of Energy (ƃĀƒĆ‚ĀƒĆƒĀ‚Ć‚Ā¢ĆƒĀƒĆ‚Ā‚Ćƒā€¦ more
Date: August 31, 2012
Creator: Butterfield, Sandy; Smith, Jim; Petch, Derek; Sullivan, Brian; Smith, Peter & Pierce, Kirk
Item Type: Refine your search to only Report
open access

ADVANCED METHODS FOR THE COMPUTATION OF PARTICLE BEAM TRANSPORT AND THE COMPUTATION OF ELECTROMAGNETIC FIELDS AND MULTIPARTICLE PHENOMENA

Description: Since 1980, under the grant DEFG02-96ER40949, the Department of Energy has supported the educational and research work of the University of Maryland Dynamical Systems and Accelerator Theory (DSAT) Group. The primary focus of this educational/research group has been on the computation and analysis of charged-particle beam transport using Lie algebraic methods, and on advanced methods for the computation of electromagnetic fields and multiparticle phenomena. This Final Report summarizes the accomā€¦ more
Date: August 31, 2012
Creator: Dragt, Alex J.
Item Type: Refine your search to only Report
open access

Advanced Palladium Membrane Scale-up for Hydrogen Separation

Description: The main objective of this project was to construct, test, and demonstrate a Pd-Cu metallic tubular membrane micro-channel separator capable of producing 2 lb day{sup -1} H{sub 2} at Ć¢Ā‰Ā„95% recovery when operating downstream of an actual coal gasifier. A key milestone for the project was to complete a pilot-scale gasifier test by 1 September 2011 and demonstrate the separation of 2 lb day{sup -1} H{sub 2} to verify progress toward the DOEĆ¢Ā€Ā™s goals prior to down-selection for larger-scale (Ć¢Ā‰Āˆ1ā€¦ more
Date: October 31, 2012
Creator: Emerson, Sean; Magdefrau, Neal; She, Ying & Thibaud-Erkey, Catherine
Item Type: Refine your search to only Report
open access

Afghanistan Casualties: Military Forces and Civilians

Description: This report collects statistics from a variety of sources on casualties sustained during Operation Enduring Freedom (OEF), which began on October 7, 2001, and is ongoing. OEF actions take place primarily in Afghanistan, but OEF casualties also include American casualties in other countries, listed within this report.
Date: May 31, 2012
Creator: Chesser, Susan G.
Item Type: Refine your search to only Report
open access

Alumina-Forming Austenitics: A New Approach to Thermal and Degradation Resistant Stainless Steels for Industrial Use

Description: A series of developmental AFA alloys was selected for study based on: 25 Ni wt.% (alloys A-F), 20 wt% Ni (alloys G-H), and 12 Ni wt.% (alloys I-L). An emphasis in this work was placed on the lower alloy content direction for AFA alloys to reduce alloy raw material cost, rather than more highly alloyed and costly AFA alloys for higher temperature performance. Alloys A-D explored the effects of Al (3-4 wt.%) and C (0.05-0.2 wt.%) in the Fe-25Ni-14Cr-2Mn-2Mo-1W-1Nb wt.% base range; alloys E and F ā€¦ more
Date: May 31, 2012
Creator: Helmick, David A; Magee, John H & Brady, Michael P
Item Type: Refine your search to only Report
open access

Analysis of Self-Similar Solutions of Multidimensional Conservation Laws

Description: This project brought large-scale, advanced methods for numerical solution of PDE to bear on the two-dimensional Riemann problem, and obtained numerical solution of problem. This numerical solution allowed us to describe key features of the solution. Analysis was combined with numerical solution to explain these numerical results. High-resolution, large-scale numerical computations show for the #12;first time that a shock forms strictly in the supersonic region. Numerical solutions appear to shoā€¦ more
Date: August 31, 2012
Creator: Tesdall, Allen M.
Item Type: Refine your search to only Report
open access

An Analysis of Statewide Adoption Rates of Building Energy Code by Local Jurisdictions

Description: The purpose of this study is to generally inform the U.S. Department of Energyā€™s Building Energy Codes Program of the local, effective energy code adoption rate for a sample set of 21 states, some which have adopted statewide codes and some that have not. Information related to the residential energy code adoption process and status at the local jurisdiction was examined for each of the states. Energy code status information was gathered for approximately 2,800 jurisdictions, which effectively ā€¦ more
Date: December 31, 2012
Creator: Cort, Katherine A. & Butner, Ryan S.
Item Type: Refine your search to only Report
open access

Anthrax: DHS Faces Challenges in Validating Methods for Sample Collection and Analysis

Description: A letter report issued by the Government Accountability Office with an abstract that begins "A workgroupĀ—led by the U.S. Department of Homeland Security (DHS) and made up of DHS and the Centers for Disease Control and Prevention (CDC), the Environmental Protection Agency (EPA), the Federal Bureau of Investigation (FBI), and the National Institute of Standards and Technology (NIST)Ā—has attempted to address GAOĀ’s recommendations to (1) validate environmental sampling methods for detecting Bacilluā€¦ more
Date: July 31, 2012
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

Antibiotics: FDA Needs to Do More to Ensure That Drug Labels Contain Up-to-Date Information

Description: A letter report issued by the Government Accountability Office with an abstract that begins "FDA has not taken sufficient steps to ensure that antibiotic labels contain up-to-date breakpoints. FDA designates certain drugs as Ā“reference-listed drugsĀ” and the sponsors of these drugs play an important role in ensuring the accuracy of drug labels. Reference-listed drugs are approved drug products to which generic versions are compared. As of November 2011, FDA had not yet confirmed whether the breaā€¦ more
Date: January 31, 2012
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
open access

Applicability of the ā€œGallet equationā€ to the vegetation clearances of NERC Reliability Standard FAC-003-2

Description: NERC has proposed a standard to use to specify clearances between vegetation and power lines. The purpose of the rule is to reduce the probability of flashover to a calculably low level. This report was commissioned by FERCā€™s Office of Electrical Reliability. The scope of the study was analysis of the mathematics and documentation of the technical justification behind the application of the Gallet equation and the assumptions used in the technical reference paper
Date: March 31, 2012
Creator: Kirkham, Harold
Item Type: Refine your search to only Report
open access

Assessment of lesser prairie-chicken lek density relative to landscape characteristics in Texas

Description: My 2.5-yr Master'ƂĀ™s project accomplished the objectives of estimating lesser prairie-chicken (LPC) lek density and abundance in the Texas occupied range and modeling anthropogenic and landscape features associated with lek density by flying helicopter lek surveys for 2 field seasons and employing a line-transect distance sampling method. This project was important for several reasons. Firstly, wildlife managers and biologists have traditionally monitored LPC populations with road-based surveysā€¦ more
Date: August 31, 2012
Creator: Timmer, Jennifer; Butler, Matthew; Ballard, Warren; Boal, Clint & Whitlaw, Heather
Item Type: Refine your search to only Report
open access

Balance of Nanostructure and Bimetallic Interactions in Pt Model Fuel Cell Catalysts: An in Situ XAS and DFT Study

Description: We have studied the effect of nanostructuring in Pt monolayer model electrocatalysts on a Rh(111) single-crystal substrate on the adsorption strength of chemisorbed species. In situ high energy resolution fluorescence detection X-ray absorption spectroscopy at the Pt L(3) edge reveals characteristic changes of the shape and intensity of the 'white-line' due to chemisorption of atomic hydrogen (H(ad)) at low potentials and oxygen-containing species (O/OH(ad)) at high potentials. On a uniform, twā€¦ more
Date: May 31, 2012
Creator: Friebel, Daniel; Viswanathan, Venkatasubramanian; Miller, Daniel James; Anniyev, Toyli; Ogasawara, Hirohito; Larsen, Ask Hjorth et al.
Item Type: Refine your search to only Article
open access

Beam Size Measurement by Optical Diffraction Radiation and Laser System for Compton Polarimeter

Description: Beam diagnostics is an essential constituent of any accelerator, so that it is named as "organs of sense" or "eyes of the accelerator." Beam diagnostics is a rich field. A great variety of physical effects or physical principles are made use of in this field. Some devices are based on electro-magnetic influence by moving charges, such as faraday cups, beam transformers, pick-ups; Some are related to Coulomb interaction of charged particles with matter, such as scintillators,ā€¦ more
Date: December 31, 2012
Creator: Liu, Chuyu
Item Type: Refine your search to only Thesis or Dissertation
open access

Bridging the Gap between Chemical Flooding and Independent Oil Producers

Description: Ten Kanas oil reservoirs/leases were studied through geological and engineering analysis to assess the potential performance of chemical flooding to recover oil. Reservoirs/leases that have been efficiently waterflooded have the highest performance potential for chemical flooding. Laboratory work to identify efficient chemical systems and to test the oil recovery performance of the systems was the major effort of the project. Efficient chemical systems were identified for crude oils from nine oā€¦ more
Date: March 31, 2012
Creator: McCool, Stan; Walton, Tony; Whillhite, Paul; Ballard, Mark; Rondon, Miguel; Song, Kaixu et al.
Item Type: Refine your search to only Report
open access

Bridging the Gap between Chemical Flooding and Independent Oil Producers

Description: Ten Kanas oil reservoirs/leases were studied through geological and engineering analysis to assess the potential performance of chemical flooding to recover oil. Reservoirs/leases that have been efficiently waterflooded have the highest performance potential for chemical flooding. Laboratory work to identify efficient chemical systems and to test the oil recovery performance of the systems was the major effort of the project. Efficient chemical systems were identified for crude oils from nine oā€¦ more
Date: March 31, 2012
Creator: McCool, Stan; Walton, Tony; Willhite, Paul; Ballard, Mark; Rondon, Miguel; Song, Kaixu et al.
Item Type: Refine your search to only Report
open access

Brief 70 Nuclear Engineering Enrollments and Degrees, 2011 Summary Information

Description: The survey includes degrees granted between September 1, 2010 and August 31, 2011. Enrollment information refers to the fall term 2011. The enrollment and degree data include students majoring in nuclear engineering or in an option program equivalent to a major. Thirty-two academic programs reported having nuclear engineering programs during 2011, and data was received from all thirty-two programs. The data for two nuclear engineering programs include enrollments and degrees in health physics oā€¦ more
Date: October 31, 2012
Creator: Johnson, Dr. Don
Item Type: Refine your search to only Report
open access

BWR Anticipated Transients Without SCRAM in the MELLLA+ Expanded Operating Domain Part 4: Sensitivity Studies for Events Leading to Emergency Depressurization

Description: This is the fourth in a series of reports on the response of a BWR/5 boiling water reactor to anticipated transients without reactor scram (ATWS) when operating in the expanded operating domain MELLLA+. In this report ATWS events initiated by closure of main steam isolation valves are analyzed at beginning-of-cycle, and end-of-full-power-life, conditions. The objective is to understand the sensitivity of ATWS-ED events to the intial operating core flow and to the spectrally corrected moderator ā€¦ more
Date: December 31, 2012
Creator: Cheng, Lap-Yan; Baek, Joo-Seok; Cuadra, Arantxa; Aronson,Arnold; Diamond, David & Yarsky, Peter
Item Type: Refine your search to only Report
open access

Central and Eastern United States (CEUS) Seismic Source Characterization (SSC) for Nuclear Facilities Project

Description: This report describes a new seismic source characterization (SSC) model for the Central and Eastern United States (CEUS). It will replace the Seismic Hazard Methodology for the Central and Eastern United States, EPRI Report NP-4726 (July 1986) and the Seismic Hazard Characterization of 69 Nuclear Plant Sites East of the Rocky Mountains, Lawrence Livermore National Laboratory Model, (Bernreuter et al., 1989). The objective of the CEUS SSC Project is to develop a new seismic source model for the ā€¦ more
Date: January 31, 2012
Creator: Coppersmith, Kevin J.; Salomone, Lawrence A.; Fuller, Chris W.; Glaser, Laura L.; Hanson, Kathryn L.; Hartleb, Ross D. et al.
Item Type: Refine your search to only Report
Back to Top of Screen