National Library of Energy BETA

Sample records for bypass filtration evaluation

  1. Evaluation of Side Stream Filtration Technology at Oak Ridge...

    Office of Environmental Management (EM)

    ssfevaluation.pdf More Documents & Publications Side Stream Filtration for Cooling Towers Technical Evaluation of Side Stream Filtration for Cooling Towers Cooling...

  2. AVTA: Oil Bypass Filter Specifications and Test Procedures

    Broader source: Energy.gov [DOE]

    PuraDYN Oil Bypass Filtration System Evaluation Test Plan methodology is used in the testing of all oil bypass filters on the buses at the Idaho National Laboratory.

  3. ACTINIDE REMOVAL PROCESS SAMPLE ANALYSIS, CHEMICAL MODELING, AND FILTRATION EVALUATION

    SciTech Connect (OSTI)

    Martino, C.; Herman, D.; Pike, J.; Peters, T.

    2014-06-05

    Filtration within the Actinide Removal Process (ARP) currently limits the throughput in interim salt processing at the Savannah River Site. In this process, batches of salt solution with Monosodium Titanate (MST) sorbent are concentrated by crossflow filtration. The filtrate is subsequently processed to remove cesium in the Modular Caustic Side Solvent Extraction Unit (MCU) followed by disposal in saltstone grout. The concentrated MST slurry is washed and sent to the Defense Waste Processing Facility (DWPF) for vitrification. During recent ARP processing, there has been a degradation of filter performance manifested as the inability to maintain high filtrate flux throughout a multi-batch cycle. The objectives of this effort were to characterize the feed streams, to determine if solids (in addition to MST) are precipitating and causing the degraded performance of the filters, and to assess the particle size and rheological data to address potential filtration impacts. Equilibrium modelling with OLI Analyzer{sup TM} and OLI ESP{sup TM} was performed to determine chemical components at risk of precipitation and to simulate the ARP process. The performance of ARP filtration was evaluated to review potential causes of the observed filter behavior. Task activities for this study included extensive physical and chemical analysis of samples from the Late Wash Pump Tank (LWPT) and the Late Wash Hold Tank (LWHT) within ARP as well as samples of the tank farm feed from Tank 49H. The samples from the LWPT and LWHT were obtained from several stages of processing of Salt Batch 6D, Cycle 6, Batch 16.

  4. Evaluation of Side Stream Filtration Technology at Oak Ridge National Laboratory

    SciTech Connect (OSTI)

    Boyd, Brian K.

    2014-08-01

    This technology evaluation was performed by Pacific Northwest National Laboratory and Oak Ridge National Laboratory on behalf of the Federal Energy Management Program. The objective was to quantify the benefits side stream filtration provides to a cooling tower system. The evaluation assessed the performance of an existing side stream filtration system at a cooling tower system at Oak Ridge National Laboratory’s Spallation Neutron Source research facility. This location was selected because it offered the opportunity for a side-by-side comparison of a system featuring side stream filtration and an unfiltered system.

  5. Measurement-Based Evaluation of Installed Filtration System Performance in Single-Family Homes

    SciTech Connect (OSTI)

    Chan, Wanyu Rengie; Singer, Brett C.

    2014-04-03

    This guide discusses important study design issues to consider when conducting an on-site evaluation of filtration system performance. The two most important dichotomies to consider in developing a study protocol are (1) whether systems are being evaluated in occupied or unoccupied homes and (2) whether different systems are being compared in the same homes or if the comparison is between systems installed in different homes. This document provides perspective and recommendations about a suite of implementation issues including the choice of particle measurement devices, selection of sampling locations, ways to control and/or monitor factors and processes that can impact particle concentrations, and data analysis approaches.

  6. Oil Bypass Filter and Diesel Engine Idling Wear-Rate Evaluations...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    2005deerzirker.pdf More Documents & Publications Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology on Heavy and Light Vehicles Development of Partial Filter...

  7. Evaluation of a Stirling engine heater bypass with the NASA Lewis nodal-analysis performance code

    SciTech Connect (OSTI)

    Sullivan, T.J.

    1986-05-01

    In support of the US Department of Energy's Stirling Engine Highway Vehicle Systems program, the NASA Lewis Research Center investigated whether bypassing the P-40 Stirling engine heater during regenerative cooling would improve the engine thermal efficiency. The investigation was accomplished by using the Lewis nodal-analysis Stirling engine computer model. Bypassing the P-40 Stirling engine heater at full power resulted in a rise in the indicated thermal efficiency from 40.6 to 41.0 percent. For the idealized (some losses not included) heater bypass that was analyzed, this benefit is not considered significant.

  8. U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation Final Report

    SciTech Connect (OSTI)

    L. R. Zirker; J. E. Francfort; J. J. Fielding

    2006-03-01

    This Oil Bypass Filter Technology Evaluation final report documents the feasibility of using oil bypass filters on 17 vehicles in the Idaho National Laboratory (INL) fleet during a 3-year test period. Almost 1.3 million test miles were accumulated, with eleven 4-cycle diesel engine buses accumulating 982,548 test miles and six gasoline-engine Chevrolet Tahoes accumulating 303,172 test miles. Two hundred and forty oil samples, taken at each 12,000-mile bus servicing event and at 3,000 miles for the Tahoes, documented the condition of the engine oils for continued service. Twenty-eight variables were normally tested, including the presence of desired additives and undesired wear metals such as iron and chrome, as well as soot, water, glycol, and fuel. Depending on the assumptions employed, the INL found that oil bypass filter systems for diesel engine buses have a positive payback between 72,000 and 144,000 miles. For the Tahoes, the positive payback was between 66,000 and 69,000 miles.

  9. Evaluation of Collector Well Configurations to Model Hydrodynamics in Riverbank Filtration and Groundwater Remediation 

    E-Print Network [OSTI]

    De Leon, Tiffany Lucinda

    2011-10-21

    Collector well designs are necessary to maximize groundwater uptake and riverbank filtration without negatively impacting an aquifer. Unfortunately, there is a lack of information and research regarding the implementation of collector well design...

  10. U.S. Department of Energy FreedomCAR & Vehicle Technologies Program: Oil Bypass Filter Technology Evaluation Seventh Quarterly Report April - June 2004

    SciTech Connect (OSTI)

    Larry Zirker; James Francfort; Jordan Fielding

    2004-08-01

    This Oil Bypass Filter Technology Evaluation quarterly report (April–June 2004) details the ongoing fleet evaluation of an oil bypass filter technology by the Idaho National Engineering and Environmental Laboratory (INEEL) for the U.S. Department of Energy’s (DOE) FreedomCAR & Vehicle Technologies Program. Eight INEEL four-cycle diesel engine buses used to transport INEEL employees on various routes and six INEEL Chevrolet Tahoes with gasoline engines are equipped with oil bypass filter systems from the puraDYN Corporation. The bypass filters are reported to have engine oil filtering capability of <1 micron and a built-in additive package to facilitate extended oil-drain intervals. This quarter, the eight diesel engine buses traveled 85,632 miles. As of the end of June 2004, the eight buses have accumulated 498,814 miles since the beginning of the test and 473,192 miles without an oil change. This represents an avoidance of 39 oil changes, which equates to 1,374 quarts (343 gallons) of new oil not consumed and, furthermore, 1,374 quarts of waste oil not generated. One bus had its oil changed due to the degraded quality of the engine oil. Also this quarter, the six Tahoe test vehicles traveled 48,193 miles; to date, the six Tahoes have accumulated 109,708 total test miles. The oil for all six of the Tahoes was changed this quarter due to low Total Base Numbers (TBN). The oil used initially in the Tahoe testing was recycled oil; the recycled oil has been replaced with Castrol virgin oil, and the testing was restarted. However, the six Tahoe’s did travel a total of 98,266 miles on the initial engine oil. This represents an avoidance of 26 oil changes, which equates to 130 quarts (32.5 gallons) of new oil not consumed and, consequently, 130 quarts of waste oil not generated. Based on the number of oil changes avoided by the test buses and Tahoes to date, the potential engine oil savings if an oil bypass filter system were used was estimated for the INEEL, DOE complex and all Federal fleets of on-road vehicles. The estimated potential annual engine oil savings for the three fleets are: INEEL – 3,400 gallons, all DOE fleets – 32,000 gallons, and all Federal fleet – 1.7 million gallons.

  11. Side Stream Filtration for Cooling Towers

    SciTech Connect (OSTI)

    2012-10-20

    This technology evaluation assesses side stream filtration options for cooling towers, with an objective to assess key attributes that optimize energy and water savings along with providing information on specific technology and implementation options. This information can be used to assist Federal sites to determine which options may be most appropriate for their applications. This evaluation provides an overview of the characterization of side stream filtration technology, describes typical applications, and details specific types of filtration technology.

  12. SLOW SAND FILTRATIONSLOW SAND FILTRATION

    E-Print Network [OSTI]

    SLOW SAND FILTRATIONSLOW SAND FILTRATION:: Timeless Technology and Recent AdvancesBiological Filtration Systems ­­ Riverbank FiltrationRiverbank Filtration ­­ Slow Sand FiltrationSlow Sand Filtration #12;Slow Sand Filtration (SSF)Slow Sand Filtration (SSF) Headspace Supernatant Water Schmutzdecke Raw

  13. Rotary filtration system

    DOE Patents [OSTI]

    Herman, David T. (Aiken, SC); Maxwell, David N. (Aiken, SC)

    2011-04-19

    A rotary filtration apparatus for filtering a feed fluid into permeate is provided. The rotary filtration apparatus includes a container that has a feed fluid inlet. A shaft is at least partially disposed in the container and has a passageway for the transport of permeate. A disk stack made of a plurality of filtration disks is mounted onto the shaft so that rotation of the shaft causes rotation of the filtration disks. The filtration disks may be made of steel components and may be welded together. The shaft may penetrate a filtering section of the container at a single location. The rotary filtration apparatus may also incorporate a bellows seal to prevent leakage along the shaft, and an around the shaft union rotary joint to allow for removal of permeate. Various components of the rotary filtration apparatus may be removed as a single assembly.

  14. Diesel Particulate Filtration (DPF) Technology: Success stories...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Filtration (DPF) Technology: Success stories at the High Temperature Materials Laboratory (HTML) User Program Diesel Particulate Filtration (DPF) Technology: Success stories at the...

  15. Health Benefits of Particle Filtration

    SciTech Connect (OSTI)

    Fisk, William J.

    2013-10-01

    The evidence of health benefits of particle filtration in homes and commercial buildings is reviewed. Prior reviews of papers published before 2000 are summarized. The results of 16 more recent intervention studies are compiled and analyzed. Also, reviewed are four studies that modeled health benefits of using filtration to reduce indoor exposures to particles from outdoors. Prior reviews generally concluded that particle filtration is, at best, a source of small improvements in allergy and asthma health effects; however, many early studies had weak designs. A majority of recent intervention studies employed strong designs and more of these studies report statistically significant improvements in health symptoms or objective health outcomes, particularly for subjects with allergies or asthma. The percent age improvement in health outcomes is typically modest, for example, 7percent to 25percent. Delivery of filtered air to the breathing zone of sleeping allergic or asthmatic persons may be more consistently effective in improving health than room air filtration. Notable are two studies that report statistically significant improvements, with filtration, in markers that predict future adverse coronary events. From modeling, the largest potential benefits of indoor particle filtration may be reductions in morbidity and mortality from reducing indoor exposures to particles from outdoor air.

  16. Health Benefits of Particle Filtration

    SciTech Connect (OSTI)

    Fisk, William J.

    2013-10-01

    The evidence of health benefits of particle filtration in homes and commercial buildings is reviewed. Prior reviews of papers published before 2000 are summarized. The results of 16 more recent intervention studies are compiled and analyzed. Also reviewed are four studies that modeled health benefits of using filtration to reduce indoor exposures to particles from outdoors. Prior reviews generally concluded that particle filtration is, at best, a source of small improvements in allergy and asthma health effects; however, many early studies had weak designs. A majority of recent intervention studies employed strong designs and more of these studies report statistically significant improvements in health symptoms or objective health outcomes, particularly for subjects with allergies or asthma. The percentage improvement in health outcomes is typically modest, e.g., 7percent to 25percent. Delivery of filtered air to the breathing zone of sleeping allergic or asthmatic persons may be more consistently effective in improving health than room air filtration. Notable are two studies that report statistically significant improvements, with filtration, in markers that predict future adverse coronary events. From modeling, the largest potential benefits of indoor particle filtration may be reductions in morbidity and mortality from reducing indoor exposures to particles from outdoor air.

  17. Technetium separation from aqueous solutions using polymer filtration

    SciTech Connect (OSTI)

    Schroeder, N.C.; Ball, J.R.; Robison, T.W.; Gibson, R.R.; Smith, B.F. [Los Alamos National Lab., NM (United States)

    1997-12-31

    Water-soluble, metal-binding, polymers that possess functional groups with high selectivity for technetium have been developed for ground and waste waters remediation. When combined with ultrafiltration, a new homogeneous all aqueous-based technology for metals removal/recovery, called Polymer Filtration, becomes available. Technetium distribution coefficients experiments were obtained with the polymers from simple solutions, high nitrate simulants, and DSSF simulant. We have completed a preliminary proof-of-principal evaluation of Polymer Filtration technology for removal of technetium-99 from Paducah Gaseous Diffusion Plant contaminated groundwater simulant.

  18. Thermal Bypass Air Barriers in the 2009 International Energy...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code - Building America Top Innovation Thermal Bypass Air Barriers in the 2009 International Energy...

  19. V-216: Drupal Monster Menus Module Security Bypass and Script...

    Office of Environmental Management (EM)

    6: Drupal Monster Menus Module Security Bypass and Script Insertion Vulnerabilities V-216: Drupal Monster Menus Module Security Bypass and Script Insertion Vulnerabilities August...

  20. Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology on Heavy and Light Vehicles Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology on Heavy and...

  1. Exhaust gas bypass valve control for thermoelectric generator

    DOE Patents [OSTI]

    Reynolds, Michael G; Yang, Jihui; Meisner, Greogry P.; Stabler, Francis R.; De Bock, Hendrik Pieter (Peter) Jacobus; Anderson, Todd Alan

    2012-09-04

    A method of controlling engine exhaust flow through at least one of an exhaust bypass and a thermoelectric device via a bypass valve is provided. The method includes: determining a mass flow of exhaust exiting an engine; determining a desired exhaust pressure based on the mass flow of exhaust; comparing the desired exhaust pressure to a determined exhaust pressure; and determining a bypass valve control value based on the comparing, wherein the bypass valve control value is used to control the bypass valve.

  2. Evaluation of post-treatment filter, Part I: Experimental study of DMMP and DIMP filtration at high temperature and high dew point using activated carbon. Final report, November 1994-September 1995

    SciTech Connect (OSTI)

    Mahle, J.J.; Buettner, L.C.; Mauer, S.

    1996-08-01

    A series of experimental results are reported for breakthrough of the agent simulants DMMP and DIMP on coconut carbon. This adsorbent is used in filters for the Chemical Demiliterization program. The conditions were appropriate for a post treatment stack gas filter. Results indicate that high capacity and long filtration times are achievable under moderate humidity conditions up to 180 degrees F.

  3. Bypass diode for a solar cell

    DOE Patents [OSTI]

    Rim, Seung Bum (Palo Alto, CA); Kim, Taeseok (San Jose, CA); Smith, David D. (Campbell, CA); Cousins, Peter J. (Menlo Park, CA)

    2012-03-13

    Bypass diodes for solar cells are described. In one embodiment, a bypass diode for a solar cell includes a substrate of the solar cell. A first conductive region is disposed above the substrate, the first conductive region of a first conductivity type. A second conductive region is disposed on the first conductive region, the second conductive region of a second conductivity type opposite the first conductivity type.

  4. Water Filtration Using Plant Xylem

    E-Print Network [OSTI]

    Lee, Jongho; Chambers, Valerie; Venkatesh, Varsha; Karnik, Rohit

    2013-01-01

    Effective point-of-use devices for providing safe drinking water are urgently needed to reduce the global burden of waterborne disease. Here we show that plant xylem from the sapwood of coniferous trees - a readily available, inexpensive, biodegradable, and disposable material - can remove bacteria from water by simple pressure-driven filtration. Approximately 3 cm3 of sapwood can filter water at the rate of several liters per day, sufficient to meet the clean drinking water needs of one person. The results demonstrate the potential of plant xylem to address the need for pathogen-free drinking water in developing countries and resource-limited settings.

  5. Investigation on the Core Bypass Flow in a Very High Temperature Reactor

    SciTech Connect (OSTI)

    Hassan, Yassin

    2013-10-22

    Uncertainties associated with the core bypass flow are some of the key issues that directly influence the coolant mass flow distribution and magnitude, and thus the operational core temperature profiles, in the very high-temperature reactor (VHTR). Designers will attempt to configure the core geometry so the core cooling flow rate magnitude and distribution conform to the design values. The objective of this project is to study the bypass flow both experimentally and computationally. Researchers will develop experimental data using state-of-the-art particle image velocimetry in a small test facility. The team will attempt to obtain full field temperature distribution using racks of thermocouples. The experimental data are intended to benchmark computational fluid dynamics (CFD) codes by providing detailed information. These experimental data are urgently needed for validation of the CFD codes. The following are the project tasks: • Construct a small-scale bench-top experiment to resemble the bypass flow between the graphite blocks, varying parameters to address their impact on bypass flow. Wall roughness of the graphite block walls, spacing between the blocks, and temperature of the blocks are some of the parameters to be tested. • Perform CFD to evaluate pre- and post-test calculations and turbulence models, including sensitivity studies to achieve high accuracy. • Develop the state-of-the art large eddy simulation (LES) using appropriate subgrid modeling. • Develop models to be used in systems thermal hydraulics codes to account and estimate the bypass flows. These computer programs include, among others, RELAP3D, MELCOR, GAMMA, and GAS-NET. Actual core bypass flow rate may vary considerably from the design value. Although the uncertainty of the bypass flow rate is not known, some sources have stated that the bypass flow rates in the Fort St. Vrain reactor were between 8 and 25 percent of the total reactor mass flow rate. If bypass flow rates are on the high side, the quantity of cooling flow through the core may be considerably less than the nominal design value, causing some regions of the core to operate at temperatures in excess of the design values. These effects are postulated to lead to localized hot regions in the core that must be considered when evaluating the VHTR operational and accident scenarios.

  6. Polymer filtration: A new technology for selective metals recovery

    SciTech Connect (OSTI)

    Smith, B.F.; Robison, T.W.; Cournoyer, M.E.; Wilson, K.V.; Sauer, N.N.; Mullen, K.I.; Lu, M.T.; Jarvinen, J.J.

    1995-04-01

    Polymer Filtration (PF) was evaluated for the recovery of electroplating metal ions (zinc and nickel) from rinse waters. Polymer Filtration combines the use of water-soluble metal-binding polymers and ultrafiltration to concentrate metal ions from dilute rinse water solutions. The metal ions are retained by the polymers; the smaller, unbound species freely pass through the ultrafiltration membrane. By using this process the ultrafiltered permeate more than meets EPA discharge limits. The metal ions are recovered from the concentrated polymer solution by pH adjustment using diafiltration and can be recycled to the original electroplating baths with no deleterious effects on the test panels. Metal-ion recovery is accomplished without producing sludge.

  7. Bypass apparatus and method for series connected energy storage devices

    DOE Patents [OSTI]

    Rouillard, Jean (Saint-Luc, CA); Comte, Christophe (Montreal, CA); Daigle, Dominik (St-Hyacinthe, CA)

    2000-01-01

    A bypass apparatus and method for series connected energy storage devices. Each of the energy storage devices coupled to a common series connection has an associated bypass unit connected thereto in parallel. A current bypass unit includes a sensor which is coupled in parallel with an associated energy storage device or cell and senses an energy parameter indicative of an energy state of the cell, such as cell voltage. A bypass switch is coupled in parallel with the energy storage cell and operable between a non-activated state and an activated state. The bypass switch, when in the non-activated state, is substantially non-conductive with respect to current passing through the energy storage cell and, when in the activated state, provides a bypass current path for passing current to the series connection so as to bypass the associated cell. A controller controls activation of the bypass switch in response to the voltage of the cell deviating from a pre-established voltage setpoint. The controller may be included within the bypass unit or be disposed on a control platform external to the bypass unit. The bypass switch may, when activated, establish a permanent or a temporary bypass current path.

  8. Linear Thermodynamics of Rodlike DNA Filtration

    E-Print Network [OSTI]

    Li, Zirui

    Linear thermodynamics transportation theory is employed to study filtration of rodlike DNA molecules. Using the repeated nanoarray consisting of alternate deep and shallow regions, it is demonstrated that the complex ...

  9. Filtration of submicrometer particles by pelagic tunicates

    E-Print Network [OSTI]

    Sutherland, Kelly R.

    Salps are common in oceanic waters and have higher per-individual filtration rates than any other zooplankton filter feeder. Although salps are centimeters in length, feeding via particle capture occurs on a fine, mucous ...

  10. Communication Parvoviral nuclear import: bypassing the host

    E-Print Network [OSTI]

    Panté, Nelly

    Short Communication Parvoviral nuclear import: bypassing the host nuclear-transport machinery Sarah the mechanisms underlying parvovirus' nuclear import. Recently, it was found that microinjection of MVM into the cytoplasm of Xenopus oocytes causes damage to the nuclear envelope (NE), suggesting that the nuclear

  11. GPS Data Filtration Method for Drive Cycle Analysis Applications

    SciTech Connect (OSTI)

    Duran, A.; Earleywine, M.

    2013-02-01

    When employing GPS data acquisition systems to capture vehicle drive-cycle information, a number of errors often appear in the raw data samples, such as sudden signal loss, extraneous or outlying data points, speed drifting, and signal white noise, all of which limit the quality of field data for use in downstream applications. Unaddressed, these errors significantly impact the reliability of source data and limit the effectiveness of traditional drive-cycle analysis approaches and vehicle simulation software. Without reliable speed and time information, the validity of derived metrics for drive cycles, such as acceleration, power, and distance, become questionable. This study explores some of the common sources of error present in raw onboard GPS data and presents a detailed filtering process designed to correct for these issues. Test data from both light and medium/heavy duty applications are examined to illustrate the effectiveness of the proposed filtration process across the range of vehicle vocations. Graphical comparisons of raw and filtered cycles are presented, and statistical analyses are performed to determine the effects of the proposed filtration process on raw data. Finally, an evaluation of the overall benefits of data filtration on raw GPS data and present potential areas for continued research is presented.

  12. CROSSFLOW FILTRATION: EM-31, WP-2.3.6

    SciTech Connect (OSTI)

    Duignan, M.; Nash, C.; Poirier, M.

    2011-02-01

    In the interest of accelerating waste treatment processing, the DOE has funded studies to better understand filtration with the goal of improving filter fluxes in existing crossflow equipment. The Savannah River National Laboratory (SRNL) performed some of those studies, with a focus on start-up techniques, filter cake development, the application of filter aids (cake forming solid precoats), and body feeds (flux enhancing polymers). This paper discusses the progress of those filter studies. Crossflow filtration is a key process step in many operating and planned waste treatment facilities to separate undissolved solids from supernate solutions. This separation technology generally has the advantage of self-cleaning through the action of wall shear stress created by the flow of waste slurry through the filter tubes. However, the ability of filter wall self-cleaning depends on the slurry being filtered. Many of the alkaline radioactive wastes are extremely challenging to filtration, e.g., those containing compounds of aluminum and iron, which have particles whose size and morphology reduce permeability. Unfortunately, low filter flux can be a bottleneck in waste processing facilities such as the Savannah River Integrated Salt Disposition Process and the Hanford Waste Treatment Plant. Any improvement to the filtration rate would lead directly to increased throughput of the entire process. To date increased rates are generally realized by either increasing the crossflow filter feed flow rate, limited by pump capacity, or by increasing filter surface area, limited by space and increasing the required pump load. SRNL set up both dead-end and crossflow filter tests to better understand filter performance based on filter media structure, flow conditions, filter cleaning, and several different types of filter aids and body feeds. Using non-radioactive simulated wastes, both chemically and physically similar to the actual radioactive wastes, the authors performed several tests to evaluate methods to improve filter performance. With the proper use of filter flow conditions and filter enhancers, filter flow rates can be increased over rates currently realized today. Experiments that use non-radioactive simulants for actual waste always carry the inherent risk of not eliciting prototypic results; however, they will assist in focusing the scope needed to minimize radioactive testing and thus maximize safety. To that end this investigation has determined: (1) Waste simulant SB6 was found to be more challenging to filtration than a SRS Tank 8F simulant; (2) Higher solids concentration presents a greater challenge to filtration; (3) Filter cake is something that should be properly developed in initial filter operation; (4) Backpulsing is not necessary to maintain a good filter flux with salt wastes; (5) Scouring a filter without cleaning will lead to improved filter performance; (6) The presence of a filter cake can improve the solids separation by an order of magnitude as determined by turbidity; (7) A well developed cake with periodic scouring may allow a good filter flux to be maintained for long periods of time; and (8) Filtrate flux decline is reversible when the concentration of the filtering slurry drops and the filter is scoured.

  13. Heat exchanger bypass system for an absorption refrigeration system

    DOE Patents [OSTI]

    Reimann, Robert C. (Lafayette, NY)

    1984-01-01

    A heat exchanger bypass system for an absorption refrigeration system is disclosed. The bypass system operates to pass strong solution from the generator around the heat exchanger to the absorber of the absorption refrigeration system when strong solution builds up in the generator above a selected level indicative of solidification of strong solution in the heat exchanger or other such blockage. The bypass system includes a bypass line with a gooseneck located in the generator for controlling flow of strong solution into the bypass line and for preventing refrigerant vapor in the generator from entering the bypass line during normal operation of the refrigeration system. Also, the bypass line includes a trap section filled with liquid for providing a barrier to maintain the normal pressure difference between the generator and the absorber even when the gooseneck of the bypass line is exposed to refrigerant vapor in the generator. Strong solution, which may accumulate in the trap section of the bypass line, is diluted, to prevent solidification, by supplying weak solution to the trap section from a purge system for the absorption refrigeration system.

  14. V-106: Citrix Access Gateway Unspecified Security Bypass Vulnerability

    Broader source: Energy.gov [DOE]

    A vulnerability has been reported in Citrix Access Gateway, which can be exploited by malicious people to bypass certain security restrictions.

  15. T-646: Debian fex authentication bypass | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    of "auth-ID" when uploading files and can be exploited to bypass the authentication mechanism. PLATFORM: Debian fex ABSTRACT: Debian security discovered that fex, a web service...

  16. V-162: Apache Struts "ParameterInterceptor" Security Bypass Vulnerabil...

    Broader source: Energy.gov (indexed) [DOE]

    to enable method execution and execute arbitrary methods, bypassing Struts and OGNL library protections. 2. Any unsanitized String variable exposed by an action and have it...

  17. Plasma discharge self-cleaning filtration system

    SciTech Connect (OSTI)

    Cho, Young I.; Fridman, Alexander; Gutsol, Alexander F.; Yang, Yong

    2014-07-22

    The present invention is directed to a novel method for cleaning a filter surface using a plasma discharge self-cleaning filtration system. The method involves utilizing plasma discharges to induce short electric pulses of nanoseconds duration at high voltages. These electrical pulses generate strong Shockwaves that disintegrate and dislodge particulate matter located on the surface of the filter.

  18. Development of Model Filtration Media for Investigating Size-Dependent Filtration Efficiency

    Broader source: Energy.gov [DOE]

    A novel method for fabricating custom porous filtration media for emission control has been developed. Controlled pore sizes could be used to optimize high-capture efficiency with low backpressure.

  19. MODELING AND CONTROL OF A CONTINUOUS BIOREACTOR WITH CROSSFLOW FILTRATION

    E-Print Network [OSTI]

    Skogestad, Sigurd

    MODELING AND CONTROL OF A CONTINUOUS BIOREACTOR WITH CROSS­FLOW FILTRATION Ying Zhao and Sigurd on an industrial application of a continuous bioreactor with cross­flow filtration. In this paper the general pHC LC X, rS L , rS Y Figure 1: A continuous bioreactor with cross­flow filtration. The operation

  20. Bypass diode for a solar cell

    DOE Patents [OSTI]

    Rim, Seung Bum; Kim, Taeseok; Smith, David D; Cousins, Peter J

    2013-11-12

    Methods of fabricating bypass diodes for solar cells are described. In once embodiment, a method includes forming a first conductive region of a first conductivity type above a substrate of a solar cell. A second conductive region of a second conductivity type is formed on the first conductive region. In another embodiment, a method includes forming a first conductive region of a first conductivity type above a substrate of a solar cell. A second conductive region of a second conductivity type is formed within, and surrounded by, an uppermost portion of the first conductive region but is not formed in a lowermost portion of the first conductive region.

  1. U-234: Oracle MySQL User Login Security Bypass Vulnerability

    Broader source: Energy.gov [DOE]

    Oracle MySQL is prone to a security bypass vulnerability Attackers can exploit this issue to bypass certain security restrictions.

  2. Fundamental studies of polymer filtration

    SciTech Connect (OSTI)

    Smith, B.F.; Lu, M.T.; Robison, T.W.; Rogers, Y.C.; Wilson, K.V.

    1998-12-31

    This is the final report of a one-year, Laboratory Directed Research and Development (LDRD) project at Los Alamos National Laboratory (LANL). The objectives of this project were (1) to develop an enhanced fundamental understanding of the coordination chemistry of hazardous-metal-ion complexation with water-soluble metal-binding polymers, and (2) to exploit this knowledge to develop improved separations for analytical methods, metals processing, and waste treatment. We investigated features of water-soluble metal-binding polymers that affect their binding constants and selectivity for selected transition metal ions. We evaluated backbone polymers using light scattering and ultrafiltration techniques to determine the effect of pH and ionic strength on the molecular volume of the polymers. The backbone polymers were incrementally functionalized with a metal-binding ligand. A procedure and analytical method to determine the absolute level of functionalization was developed and the results correlated with the elemental analysis, viscosity, and molecular size.

  3. Water filtration optimization by geometric programming 

    E-Print Network [OSTI]

    Wray, Duane Jimmy

    1970-01-01

    important as a means of removing suspended and colloidal matter. Sand is the most commonly used filter media but is rapidly being replaced by a combination of anthracite, sand, and garnet for faster filtration rates. Due to the complexity... of the filtering process, the design of these filters has remained an art without ever progressing to a science. Filters are in general designed from experience and rules of thumb without any assurance that maximum efficiency is attained at minimum cost. A...

  4. U-188: MySQL User Login Security Bypass and Unspecified Vulnerability

    Broader source: Energy.gov [DOE]

    An error when verifying authentication attempts can be exploited to bypass the authentication mechanism.

  5. Beyond Numerics: The Existence of Pure Filtrations

    E-Print Network [OSTI]

    Eisenbud, David; Schreyer, Frank-Olaf

    2010-01-01

    A recent result of Boij-Soederberg and Eisenbud-Schreyer proves that the Betti diagram of any graded module decomposes as a positive rational linear combination of pure diagrams. We consider the follow-up question of whether this numerical decomposition ever corresponds to an actual filtration of the minimal free resolution itself. Our main result is an affirmative answer to this question in many surprising cases. As applications of our technique, we also obtain new results about the semigroup of Betti diagrams and about very singular spaces of matrices.

  6. Demand Controlled Filtration in an Industrial Cleanroom

    SciTech Connect (OSTI)

    Faulkner, David; DiBartolomeo, Dennis; Wang, Duo

    2007-09-01

    In an industrial cleanroom, significant energy savings were realized by implementing two types of demand controlled filtration (DCF) strategies, one based on particle counts and one on occupancy. With each strategy the speed of the recirculation fan filter units was reduced to save energy. When the control was based on particle counts, the energy use was 60% of the baseline configuration of continuous fan operation. With simple occupancy sensors, the energy usage was 63% of the baseline configuration. During the testing of DCF, no complaints were registered by the operator of the cleanroom concerning processes and products being affected by the DCF implementation.

  7. A rigid porous filter and filtration method

    SciTech Connect (OSTI)

    Chiang, Ta-Kuan; Straub, Douglas, Straub L.; Dennis, Richard A.

    1998-12-01

    The present invention involves a porous rigid filter comprising a plurality of concentric filtration elements having internal flow passages and forming external flow passages there between. The present invention also involves a pressure vessel containing the filter for the removal of particulate from high pressure particulate containing gases, and further involves a method for using the filter to remove such particulate. The present filter has the advantage of requiring fewer filter elements due to the high surface area- to-volume ratio provided by the filter, requires a reduced pressure vessel size, and exhibits enhanced mechanical design properties, improved cleaning properties, configuration options, modularity and ease of fabrication.

  8. Hemodynamic Changes following Aortic Valve Bypass: A Mathematical Approach

    E-Print Network [OSTI]

    Benevento, Emilia

    Aortic valve bypass (AVB) has been shown to be a viable solution for patients with severe aortic stenosis (AS). Under this circumstance, the left ventricle (LV) has a double outlet. The objective was to develop a mathematical ...

  9. Development of Advanced Diesel Particulate Filtration (DPF) Systems...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (ANLCorningCaterpillar CRADA) Development of Advanced Diesel Particulate Filtration (DPF) Systems (ANLCorningCaterpillar CRADA) ace22lee.pdf More Documents & Publications...

  10. Development of Model Filtration Media for Investigating Size...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Efficiency A novel method for fabricating custom porous filtration media for emission control has been developed. Controlled pore sizes could be used to optimize...

  11. CFD Analysis of Particle Deposition During DPF Filtration Processes

    Broader source: Energy.gov [DOE]

    A 3-D DPF model is developed to predict thermo-physical properties during filtration processes and to quantitatively investigate particle deposition regarding its size and number distribution.

  12. Low Cost Ceramics:Low Cost Ceramics: Applications in Water FiltrationApplications in Water Filtration

    E-Print Network [OSTI]

    Petta, Jason

    Low Cost Ceramics:Low Cost Ceramics: Applications in Water FiltrationApplications in Water as a SolutionCeramics as a Solution Low Materials CostLow Materials Cost Worldwide Availability ­ Variable change in head of water Qcw = (k/)(2R/lcw) 0 hw (hw)d (RR1)L = (R1R2)1 (approx.) R = R

  13. Flexographic Newspaper Deinking: Treatment of Wash Filtrate Effluent

    E-Print Network [OSTI]

    Abubakr, Said

    Flexographic Newspaper Deinking: Treatment of Wash Filtrate Effluent by Membrane Technology B une meilleure qualité d'eau comparativementaux essaisdefloculation Jar-Test. INTRODUCTION Water of filtrate are produced by wash- JOURNAL OF PULP AND PAPER SCIENCE: VOL. 25 NO. 10OCTOBER 1999 ing which

  14. Water Modeling of Steel Flow, Air Entrainment and Filtration

    E-Print Network [OSTI]

    Beckermann, Christoph

    Water Modeling of Steel Flow, Air Entrainment and Filtration Christoph Beckermann Associate Beckermann, C., "Water Modeling of Steel Flow, Air Entrainment and Filtration," in Proceedings of the 46th, 1992. #12;Abstract This paper presents an analysis of water modeling of steel pouring to study (1) air

  15. Household scale slow sand filtration in the Dominican Republic

    E-Print Network [OSTI]

    Donison, Kori S. (Kori Shay), 1981-

    2004-01-01

    Slow sand filtration is a method of water treatment that has been used for hundreds of years. In the past two decades, there has been resurgence in interest in slow sand filtration, particularly as a low-cost, household-scale ...

  16. DQE of wireless digital detectors: Comparative performance with differing filtration schemes

    SciTech Connect (OSTI)

    Samei, Ehsan [Carl E. Ravin Advanced Imaging Laboratories, Departments of Radiology, Biomedical Engineering, Physics, and Electrical and Computer Engineering, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States)] [Carl E. Ravin Advanced Imaging Laboratories, Departments of Radiology, Biomedical Engineering, Physics, and Electrical and Computer Engineering, Medical Physics Graduate Program, Duke University Medical Center, Durham, North Carolina 27705 (United States); Murphy, Simon; Christianson, Olav [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States)] [Medical Physics Graduate Program, Duke University, Durham, North Carolina 27705 (United States)

    2013-08-15

    Purpose: Wireless flat panel detectors are gaining increased usage in portable medical imaging. Two such detectors were evaluated and compared with a conventional flat-panel detector using the formalism of the International Electrotechnical Commission (IEC 62220-1) for measuring modulation transfer function (MTF), normalized noise power spectrum (NNPS), and detective quantum efficiency (DQE) using two different filtration schemes.Methods: Raw images were acquired for three image receptors (DRX-1C and DRX-1, Carestream Health; Inc., Pixium 4600, Trixell) using a radiographic system with a well-characterized output (Philips Super80 CP, Philips Healthcare). Free in-air exposures were measured using a calibrated radiation meter (Unfors Mult-O-Meter Type 407, Unfors Instruments AB). Additional aluminum filtration and a new alternative combined copper-aluminum filtration were used to conform the x ray output to IEC-specified beam quality definitions RQA5 and RQA9. Using the IEC 62220-1 formalism, each detector was evaluated at X{sub N}/2, X{sub N}, and 2X{sub N}, where the normal exposure level to the detector surface (X{sub N}) was set to 8.73 ?Gy (1.0 mR). The prescribed edge test device was used to evaluate the MTF, while the NNPS was measured using uniform images. The DQE was then calculated from the MTF and NNPS and compared across detectors, exposures, and filtration schemes.Results: The three DR systems had largely comparable MTFs with DRX-1 demonstrating lower values above 1.0 cycles/mm. At each exposure, DRX-1C and Pixium detectors demonstrated better noise performance than that of DRX-1. Zero-frequency DQEs for DRX-1C, Pixium, and DRX-1 detectors were approximately 74%, 63%, and 38% for RQA5 and 50%, 42%, and 28% for RQA9, respectively.Conclusions: DRX-1C detector exhibited superior DQE performance compared to Pixium and DRX-1. In terms of filtration, the alternative filtration was found to provide comparable performance in terms of rank ordering of different detectors with the added convenience of being less bulky for in-the-field measurements.

  17. Photovoltaic-module bypass-diode encapsulation. Annual report

    SciTech Connect (OSTI)

    Not Available

    1983-06-20

    The design and processing techniques necessary to incorporate bypass diodes within the module encapsulant are presented in this annual report. A comprehensive survey of available pad-mounted PN junction and Schottky diodes led to the selection of Semicon PN junction diode cells for this application. Diode junction-to-heat spreader thermal resistance measurements, performed on a variety of mounted diode chip types and sizes, have yielded values which are consistently below 1/sup 0/C per watt, but show some instability when thermally cycled over the temperature range from -40 to 150/sup 0/C. Based on the results of a detailed thermal analysis, which covered the range of bypass currents from 2 to 20 amperes, three representative experimental modules, each incorporating integral bypass diode/heat spreader assemblies of various sizes, were designed and fabricated. Thermal testing of these modules has enabled the formation of a recommended heat spreader plate sizing relationship. The production cost of three encapsulated bypass diode/heat spreader assemblies were compared with similarly rated externally-mounted packaged diodes. An assessment of bypass diode reliability, which relies heavily on rectifying diode failure rate data, leads to the general conclusion that, when proper designed and installed, these devices will improve the overall reliability of a terrestrial array over a 20 year design lifetime.

  18. Rankine cycle load limiting through use of a recuperator bypass

    DOE Patents [OSTI]

    Ernst, Timothy C.

    2011-08-16

    A system for converting heat from an engine into work includes a boiler coupled to a heat source for transferring heat to a working fluid, a turbine that transforms the heat into work, a condenser that transforms the working fluid into liquid, a recuperator with one flow path that routes working fluid from the turbine to the condenser, and another flow path that routes liquid working fluid from the condenser to the boiler, the recuperator being configured to transfer heat to the liquid working fluid, and a bypass valve in parallel with the second flow path. The bypass valve is movable between a closed position, permitting flow through the second flow path and an opened position, under high engine load conditions, bypassing the second flow path.

  19. Initial Hydrologic Feasibility Analysis of the Proposed Ship Channel Bypass (lower Sacramento River, California

    E-Print Network [OSTI]

    Church, Tami C.

    2012-01-01

    bypass could reduce flood risk by routing water away frommainstem, thereby reducing flood risk in downstream areas,

  20. Technical Evaluation of Side Stream Filtration for Cooling Towers

    SciTech Connect (OSTI)

    2012-10-01

    Cooling towers are an integral component of many refrigeration systems, providing comfort or process cooling across a broad range of applications. Cooling towers represent the point in a cooling system where heat is dissipated to the atmosphere through evaporation. Cooling towers are commonly used in industrial applications and in large commercial buildings to release waste heat extracted from a process or building system through evaporation of water.

  1. Technical Evaluation of Side Stream Filtration for Cooling Towers |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing ToolInternational Affairs, BeforeActivities Technical AssistanceDepartment

  2. Evaluation of Side Stream Filtration Technology at Oak Ridge National

    Broader source: Energy.gov (indexed) [DOE]

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n cEnergyNaturaldefines and explains theEricDepartment ofUseto

  3. Technical Evaluation of Side Stream Filtration for Cooling Towers

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaics »Tankless Water HeaterAutomotiveAncillaryDepartmentCooling

  4. Analytical liquid test sample filtration apparatus

    DOE Patents [OSTI]

    Lohnes, B.C.; Turner, T.D.; Klingler, K.M.; Clark, M.L.

    1996-01-09

    A liquid sample filtration apparatus includes: (a) a module retaining filter elements; (b) a filter clamping and fluid injection apparatus positioned relative to the module to engage a filter element thereon, and includes a pair of first and second opposing engageable members to engage a filter element there between; (c) an inlet tube connected to an opposing engageable member; (d) an outlet tube connected to an opposing engageable member; (e) a motor to move the module relative to the filter clamping and injection apparatus to register filter elements on the module to the clamping and injection apparatus; and (f) a motor associated with the filter clamping and injection apparatus to move the opposing engageable members into substantial sealing fluid communication relative to a filter element on the module. An apparatus for engaging opposing ends of a filter element includes: (a) a member having a recess configured to engage one end of a filter element, including a first fluid passage communicating with the recess to pass fluid between the recess and externally of the member; and (b) a second member positioned in opposing juxtaposition relative to the other member, and having a projection sized and shaped to matingly fit within the other member recess, the second member projection including a second recess configured to engage the other end of the filter element, the second member including a second fluid passage communicating with the second recess to pass fluid between the second recess and externally of the second member. 8 figs.

  5. Improved filtration membranes through self-organizing amphiphilic comb copolymers

    E-Print Network [OSTI]

    Asatekin Alexiou, Ayse

    2009-01-01

    The operating cost of a membrane filtration system is generally determined by two major factors: the permeability of the membrane to water, and the lifetime of the membrane. Both of these are strongly affected by the ...

  6. Solvent Resistant Stirred Cells for Ultrafiltration and Filtration Applications

    E-Print Network [OSTI]

    Lebendiker, Mario

    mL), because the membrane support structure provides an efficient drainage path for filtrate for future transport). 2. Unscrew the three cross knobs from the support pillars and lift off the top plate

  7. Size-Dependent Filtration of Non-Loaded Particulate Traps 

    E-Print Network [OSTI]

    White, Jessica

    2014-12-12

    This work investigates the filtration efficiency of uncoated, commercial Diesel Particulate Filter (DPF) substrates of three porosities (55.8%, 61.1%, 65.0%) for particulate sizes representative of Gasoline Direct Injection ...

  8. Simulation of filtration for suspension transport in porous media

    E-Print Network [OSTI]

    Kim, Yun Sung, 1974-

    2005-01-01

    This thesis describes the development and application of a novel method for analyzing the filtration of particles transported through a granular porous medium. The proposed analysis considers the deposition of particles ...

  9. everage manufacturers use a clever process known as crossflow filtration1

    E-Print Network [OSTI]

    Brainerd, Elizabeth

    B everage manufacturers use a clever process known as crossflow filtration1 to produce sparkling. Onpage439ofthisissue,Sandersonandcol- leagues2 reportthatsomefishspeciesalsouse crossflow filtration of precisely how cross- flow filtration in fishes works. In fact, although crossflow filtration has been

  10. Wind Turbine Gearbox Oil Filtration and Condition Monitoring

    SciTech Connect (OSTI)

    Sheng, Shuangwen

    2015-10-25

    This is an invited presentation for a pre-conference workshop, titled advances and opportunities in lubrication: wind turbine, at the 2015 Society of Tribologists and Lubrication Engineers (STLE) Tribology Frontiers Conference held in Denver, CO. It gives a brief overview of wind turbine gearbox oil filtration and condition monitoring by highlighting typical industry practices and challenges. The presentation starts with an introduction by covering recent growth of global wind industry, reliability challenges, benefits of oil filtration and condition monitoring, and financial incentives to conduct wind operation and maintenance research, which includes gearbox oil filtration and condition monitoring work presented herein. Then, the presentation moves on to oil filtration by stressing the benefits of filtration, discussing typical main- and offline-loop practices, highlighting important factors considered when specifying a filtration system, and illustrating real-world application challenges through a cold-start example. In the next section on oil condition monitoring, a discussion on oil sample analysis, oil debris monitoring, oil cleanliness measurements and filter analysis is given based on testing results mostly obtained by and at NREL, and by pointing out a few challenges with oil sample analysis. The presentation concludes with a brief touch on future research and development (R and D) opportunities. It is hoping that the information presented can inform the STLE community to start or redirect their R and D work to help the wind industry advance.

  11. Cycling firing method for bypass operation of bridge converters

    DOE Patents [OSTI]

    Zabar, Zivan (99-72 66th Rd., Apt. 9N, Forest Hills, NY 11375)

    1982-01-01

    The bridge converter comprises a number of switching elements and an electronic logic system which regulated the electric power levels by controlling the firing, i.e., the initiation of the conduction period of the switching elements. Cyclic firing of said elements allows the direct current to bypass the alternating current system with high power factor and negligible losses.

  12. Development of By-Pass Blending Station System 

    E-Print Network [OSTI]

    Liu, M.; Barnes, D.; Bunz, K.; Rosenberry, N.

    2003-01-01

    Temperature 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 30 40 50 60 70 80 90 100 Ambient Temeprature Ra ti o Load Ratio Power Savings Ratio W/O DP Reset Differential Pressure Ratio Power Savings With DP Reset ICEBO 2003, Development of By-pass Blending...

  13. Hot Gas Filtration of Fine and Ultra fine Particles with Liquid...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Hot Gas Filtration of Fine and Ultra fine Particles with Liquid Phase Sintered SiC Ceramic DPF Hot Gas Filtration of Fine and Ultra fine Particles with Liquid Phase Sintered SiC...

  14. Efficacy of fixed filtration for rapid kVp-switching dual energy x-ray systems

    SciTech Connect (OSTI)

    Yao, Yuan; Wang, Adam S.; Pelc, Norbert J.; Department of Radiology, Stanford University, Stanford, California 94305; Department of Electrical Engineering, Stanford University, Stanford, California 94305

    2014-03-15

    Purpose: Dose efficiency of dual kVp imaging can be improved if the two beams are filtered to remove photons in the common part of their spectra, thereby increasing spectral separation. While there are a number of advantages to rapid kVp-switching for dual energy, it may not be feasible to have two different filters for the two spectra. Therefore, the authors are interested in whether a fixed added filter can improve the dose efficiency of kVp-switching dual energy x-ray systems. Methods: The authors hypothesized that a K-edge filter would provide the energy selectivity needed to remove overlap of the spectra and hence increase the precision of material separation at constant dose. Preliminary simulations were done using calcium and water basis materials and 80 and 140 kVp x-ray spectra. Precision of the decomposition was evaluated based on the propagation of the Poisson noise through the decomposition function. Considering availability and cost, the authors chose a commercial Gd{sub 2}O{sub 2}S screen as the filter for their experimental validation. Experiments were conducted on a table-top system using a phantom with various thicknesses of acrylic and copper and 70 and 125 kVp x-ray spectra. The authors kept the phantom exposure roughly constant with and without filtration by adjusting the tube current. The filtered and unfiltered raw data of both low and high energy were decomposed into basis material and the variance of the decomposition for each thickness pair was calculated. To evaluate the filtration performance, the authors measured the ratio of material decomposition variance with and without filtration. Results: Simulation results show that the ideal filter material depends on the object composition and thickness, and ranges across the lanthanide series, with higher atomic number filters being preferred for more attenuating objects. Variance reduction increases with filter thickness, and substantial reductions (40%) can be achieved with a 2× loss in intensity. The authors’ experimental results validate the simulations, yet were overall slightly worse than expectation. For large objects, conventional (non-K-edge) beam hardening filters perform well. Conclusions: This study demonstrates the potential of fixed K-edge filtration to improve the dose efficiency and material decomposition precision for rapid kVp-switching dual energy systems.

  15. EVALUATING TRADEOFFS BETWEEN ENVIRONMENTAL FLOW PROTECTIONS AND AGRICULTURAL WATER SECURITY

    E-Print Network [OSTI]

    Merenlender, Adina

    environmental policy associated with the greatest impacts to water users. Surprisingly, the moderate environmental flow policy had larger impacts to bypass flows than the unregulated management scenarioEVALUATING TRADEOFFS BETWEEN ENVIRONMENTAL FLOW PROTECTIONS AND AGRICULTURAL WATER SECURITY T. E

  16. Efficient Computation of Spinning Modal Radiation Through an Engine Bypass Duct

    E-Print Network [OSTI]

    Huang, Xun

    Efficient Computation of Spinning Modal Radiation Through an Engine Bypass Duct Xun Huang, Xiaoxian out of a duct with flow. The sound propagation inside a generic engine bypass duct, refractions compared on a canonical case of sound propagation out of a semi-infinite duct with flow. Good agreements

  17. AIAA 2008-2877 Sound Radiation from a Generic Bypass Duct with

    E-Print Network [OSTI]

    Huang, Xun

    1 AIAA 2008-2877 Sound Radiation from a Generic Bypass Duct with Bifurcations Xiaoxian Chen1 , Xun, United Kingdom The influence of bifurcations in an aero-engine bypass duct on noise radiation of the simulations were compared with those of a clean duct case. A circumferential mode of m=12 with radial mode

  18. Rankine cycle condenser pressure control using an energy conversion device bypass valve

    DOE Patents [OSTI]

    Ernst, Timothy C; Nelson, Christopher R; Zigan, James A

    2014-04-01

    The disclosure provides a waste heat recovery system and method in which pressure in a Rankine cycle (RC) system of the WHR system is regulated by diverting working fluid from entering an inlet of an energy conversion device of the RC system. In the system, an inlet of a controllable bypass valve is fluidly coupled to a working fluid path upstream of an energy conversion device of the RC system, and an outlet of the bypass valve is fluidly coupled to the working fluid path upstream of the condenser of the RC system such that working fluid passing through the bypass valve bypasses the energy conversion device and increases the pressure in a condenser. A controller determines the temperature and pressure of the working fluid and controls the bypass valve to regulate pressure in the condenser.

  19. Modified approaches for high pressure filtration of fine clean coal

    SciTech Connect (OSTI)

    Yang, J.; Groppo, J.G.; Parekh, B.K. [Center for Applied Energy Research, Lexington, KY (United States)

    1995-12-31

    Removal of moisture from fine (minus 28 mesh) clean coal to 20% or lower level is difficult using the conventional vacuum dewatering technique. High pressure filtration technique provides an avenue for obtaining low moisture in fine clean coal. This paper describes a couple of novel approaches for dewatering of fine clean coal using pressure filtration which provides much lower moisture in fine clean coal than that obtained using conventional pressure filter. The approaches involve (a) split stream dewatering and (b) addition of paper pulp to the coal slurry. For Pittsburgh No. 8 coal slurry, split stream dewatering at 400 mesh provided filter cake containing 12.9% moisture compared to 24.9% obtained on the feed material. The addition of paper pulp to the slurry provided filter cake containing about 17% moisture.

  20. Energy conservation in electrostatic fabric filtration of industrial dust

    SciTech Connect (OSTI)

    Ariman, T.

    1981-12-01

    Conservation in energy consumption in industrial fabric filtration systems has become very important due to the substantial increase in energy costs. Recently, an external electric field was utilized in the industrial dust control by fabric filters with very promising initial results. A substantial decrease in the pressure drop and an increase in collection efficiency were observed. The detailed outcome of the experimental research program in electrostatic fabric filtration was presented. The results show that pressure drop decreases substantially with the increased electrostatic field strength for all relevant parameters. Furthermore, the data of the experimental program was utilized to develop a semi-empirical model for the determination of the pressure drop and to establish an Energy-Optimized Design Criteria.

  1. Transuranic/Strontium Precipitation and Filtration of Hanford Complexant Waste

    SciTech Connect (OSTI)

    Nash, C.A.

    2001-01-31

    A crossflow filtration campaign to remove entrained solids and precipitated solids from Hanford Tank 241-AN-102 Envelope C was completed. A 0.61 m (2-foot) long, 0.0095 m (3/8 inches) internal diameter, 0.1 micron pore size Mott crossflow filter tube was used. An Envelope C (241-AN-102) sample containing entrained solids was then successfully pretreated for removal of strontium-90 and transuranic activity. The 1.2-liter sample was caustic adjusted, strontium and permanganate precipitated, and crossflow filtered in a bench scale demonstration. Filtration fluxes for the precipitate ranged from 2.93 to 8.80 m{sup 3}/(m{sup 2}day) [0.05 to 0.15 gpm/ft{sup 2}]. Transmembrane pressures were in the range of 2.06 to 4.83 bar [30 to 70 psid] and crossflow velocities were in the range of 2.8 to 4.6 m/s [9 to 15 ft/s]. The filtrate product was decontaminated for strontium by a factor of 30 (1.7 uCi/ml at 5.8 M sodium). This work provides important confirmation of the new process to achieve both acceptable filterability and decontamination for Envelope C wastes to be treated by the Hanford River Protection Project (RPP).

  2. Pre-test CFD Calculations for a Bypass Flow Standard Problem

    SciTech Connect (OSTI)

    Rich Johnson

    2011-11-01

    The bypass flow in a prismatic high temperature gas-cooled reactor (HTGR) is the flow that occurs between adjacent graphite blocks. Gaps exist between blocks due to variances in their manufacture and installation and because of the expansion and shrinkage of the blocks from heating and irradiation. Although the temperature of fuel compacts and graphite is sensitive to the presence of bypass flow, there is great uncertainty in the level and effects of the bypass flow. The Next Generation Nuclear Plant (NGNP) program at the Idaho National Laboratory has undertaken to produce experimental data of isothermal bypass flow between three adjacent graphite blocks. These data are intended to provide validation for computational fluid dynamic (CFD) analyses of the bypass flow. Such validation data sets are called Standard Problems in the nuclear safety analysis field. Details of the experimental apparatus as well as several pre-test calculations of the bypass flow are provided. Pre-test calculations are useful in examining the nature of the flow and to see if there are any problems associated with the flow and its measurement. The apparatus is designed to be able to provide three different gap widths in the vertical direction (the direction of the normal coolant flow) and two gap widths in the horizontal direction. It is expected that the vertical bypass flow will range from laminar to transitional to turbulent flow for the different gap widths that will be available.

  3. Photovoltaic power generation system free of bypass diodes

    DOE Patents [OSTI]

    Lentine, Anthony L.; Okandan, Murat; Nielson, Gregory N.

    2015-07-28

    A photovoltaic power generation system that includes a solar panel that is free of bypass diodes is described herein. The solar panel includes a plurality of photovoltaic sub-modules, wherein at least two of photovoltaic sub-modules in the plurality of photovoltaic sub-modules are electrically connected in parallel. A photovoltaic sub-module includes a plurality of groups of electrically connected photovoltaic cells, wherein at least two of the groups are electrically connected in series. A photovoltaic group includes a plurality of strings of photovoltaic cells, wherein a string of photovoltaic cells comprises a plurality of photovoltaic cells electrically connected in series. The strings of photovoltaic cells are electrically connected in parallel, and the photovoltaic cells are microsystem-enabled photovoltaic cells.

  4. The Benefits of Better Ventilation and Filtration Practices in Schools 

    E-Print Network [OSTI]

    Lamping, G.

    2013-01-01

    Ventilation and Filtration Practices in Schools Gerald (Jerry) Lamping ASHRAE Member Director for IAQ (Retired) Green Classroom Professional USGBC December 17, 2013 ESL-KT-13-12-17 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas... can help children build real-world skill sets, cut school costs and provide healthy learning environments. ESL-KT-13-12-17 CATEE 2013: Clean Air Through Energy Efficiency Conference, San Antonio, Texas Dec. 16-18 Costs for Student Absences 12% of U...

  5. Modeling performance of thin fibrous coatings with orthogonally layered nanofibers for improved aerosol filtration

    E-Print Network [OSTI]

    Tafreshi, Hooman Vahedi

    Modeling filtration Electrospinning Advances in nanofiber fabrication techniques (e.g., electrospinning is not a trivial task. However, the possibility of using the electrospinning pro- cess for producing

  6. U-247: EMC Cloud Tiering Appliance Flaw Lets Remote Users Bypass...

    Broader source: Energy.gov (indexed) [DOE]

    1027448 Bugtraq ID: 55250 EMC.com CVE-2012-2285 IMPACT ASSESSMENT: High Discussion EMC Cloud Tiering Appliance (CTA) is prone to a security-bypass vulnerability that may allow...

  7. V-236: MediaWiki CentralAuth Extension Authentication Bypass...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    an error when handling auto-logins and can be exploited to bypass the authentication mechanism by providing a valid username within the "centralauthUser" cookie. IMPACT: Security...

  8. Demonstration of a hitless bypass switch using nanomechanical perturbation for high-bitrate transparent networks

    E-Print Network [OSTI]

    Chatterjee, Rohit

    We demonstrate an optical hitless bypass switch based on nanomechanical proximity perturbation for high-bitrate transparent networks. Embedded in a single-level ?-imbalanced Mach-Zehnder interferometer, the two ...

  9. Experimental and Analytic Study on the Core Bypass Flow in a Very High Temperature Reactor

    SciTech Connect (OSTI)

    Richard Schultz

    2012-04-01

    Core bypass flow has been one of key issues in the very high temperature reactor (VHTR) design for securing core thermal margins and achieving target temperatures at the core exit. The bypass flow in a prismatic VHTR core occurs through the control element holes and the radial and axial gaps between the graphite blocks for manufacturing and refueling tolerances. These gaps vary with the core life cycles because of the irradiation swelling/shrinkage characteristic of the graphite blocks such as fuel and reflector blocks, which are main components of a core's structure. Thus, the core bypass flow occurs in a complicated multidimensional way. The accurate prediction of this bypass flow and counter-measures to minimize it are thus of major importance in assuring core thermal margins and securing higher core efficiency. Even with this importance, there has not been much effort in quantifying and accurately modeling the effect of the core bypass flow. The main objectives of this project were to generate experimental data for validating the software to be used to calculate the bypass flow in a prismatic VHTR core, validate thermofluid analysis tools and their model improvements, and identify and assess measures for reducing the bypass flow. To achieve these objectives, tasks were defined to (1) design and construct experiments to generate validation data for software analysis tools, (2) determine the experimental conditions and define the measurement requirements and techniques, (3) generate and analyze the experimental data, (4) validate and improve the thermofluid analysis tools, and (5) identify measures to control the bypass flow and assess its performance in the experiment.

  10. Does filtration efficiency affect measurements of particle chemical composition?

    SciTech Connect (OSTI)

    Romo-Kroeger, C.M. [Univ. of Tarapaca, Arica (Chile)

    1998-07-01

    Most experimentalists accept an uncertainty of 4--6% in the determination of aerosol mass concentration. However, in some combustion processes sulfur and other elements are present in significant amounts as particles of very small size. A direct method to measure filtration efficiency was developed and used for the determination of the efficiency of a Nuclepore filter. This needs two equivalent filtration systems operated in sequence. The amount of particulate matter collected on each system is measured and introduced in a simple formula. The particulate masses deposited on the filters in each system were measured as total mass, by balance gravimetry, and as individual elemental masses, by PIXE (particle induced X-ray emission). With this very general method it was possible to determine the efficiencies of a 0.4 {micro}m Nuclepore filter operated with a stacked filter unit for particles less than 2.5 {micro}m in total mass and elemental masses. The experiment showed that the efficiency of this filter is very poor for some specific elements, like sulfur, that are concentrated in very small particles.

  11. Water Purification by Shock Electrodialysis: Deionization, Filtration, Separation, and Disinfection

    E-Print Network [OSTI]

    Daosheng Deng; Wassim Aouad; William A. Braff; Sven Schlumpberger; Matthew E. Suss; Martin Z. Bazant

    2014-02-01

    The development of energy and infrastructure efficient water purification systems are among the most critical engineering challenges facing our society. Water purification is often a multi-step process involving filtration, desalination, and disinfection of a feedstream. Shock electrodialysis (shock ED) is a newly developed technique for water desalination, leveraging the formation of ion concentration polarization (ICP) zones and deionization shock waves in microscale pores near to an ion selective element. While shock ED has been demonstrated as an effective water desalination tool, we here present evidence of other simultaneous functionalities. We show that, unlike electrodialysis, shock ED can thoroughly filter micron-scale particles and aggregates of nanoparticles present in the feedwater. We also demonstrate that shock ED can enable disinfection of feedwaters, as approximately $99\\%$ of viable bacteria (here \\textit{E. coli}) in the inflow were killed or removed by our prototype. Shock ED also separates positive from negative particles, contrary to claims that ICP acts as a virtual barrier for all charged particles. By combining these functionalities (filtration, separation and disinfection) with deionization, shock ED has the potential to enable more compact and efficient water purification systems.

  12. Water Purification by Shock Electrodialysis: Deionization, Filtration, Separation, and Disinfection

    E-Print Network [OSTI]

    Deng, Daosheng; Braff, William A; Schlumpberger, Sven; Suss, Matthew E; Bazant, Martin Z

    2014-01-01

    The development of energy and infrastructure efficient water purification systems are among the most critical engineering challenges facing our society. Water purification is often a multi-step process involving filtration, desalination, and disinfection of a feedstream. Shock electrodialysis (shock ED) is a newly developed technique for water desalination, leveraging the formation of ion concentration polarization (ICP) zones and deionization shock waves in microscale pores near to an ion selective element. While shock ED has been demonstrated as an effective water desalination tool, we here present evidence of other simultaneous functionalities. We show that, unlike electrodialysis, shock ED can thoroughly filter micron-scale particles and aggregates of nanoparticles present in the feedwater. We also demonstrate that shock ED can enable disinfection of feedwaters, as approximately $99\\%$ of viable bacteria (here \\textit{E. coli}) in the inflow were killed or removed by our prototype. Shock ED also separates...

  13. arXiv:1107.3582v2[math.AT]2Aug2012 THE EQUIVARIANT SLICE FILTRATION: A PRIMER

    E-Print Network [OSTI]

    Ravenel, Douglas

    sequence, slice filtration, equivariant homotopy. The author was supported by NSF DMS­0906285, DARPA FA9550-07-1-0555

  14. EFFECTS OF GRAPHITE SURFACE ROUGHNESS ON BYPASS FLOW COMPUTATIONS FOR AN HTGR

    SciTech Connect (OSTI)

    Rich Johnson; Yu-Hsin Tung; Hiroyuki Sato

    2011-07-01

    Bypass flow in a prismatic high temperature gas reactor (HTGR) occurs between graphite blocks as they sit side by side in the core. Bypass flow is not intentionally designed to occur in the reactor, but is present because of tolerances in manufacture, imperfect installation and expansion and shrinkage of the blocks from heating and irradiation. It is desired to increase the knowledge of the effects of such flow, which has been estimated to be as much as 20% of the total helium coolant flow. Computational fluid dynamic (CFD) simulations can provide estimates of the scale and impacts of bypass flow. Previous CFD calculations have examined the effects of bypass gap width, level and distribution of heat generation and effects of shrinkage. The present contribution examines the effects of graphite surface roughness on the bypass flow for different relative roughness factors on three gap widths. Such calculations should be validated using specific bypass flow measurements. While such experiments are currently underway for the specific reference prismatic HTGR design for the next generation nuclear plant (NGNP) program of the U. S. Dept. of Energy, the data are not yet available. To enhance confidence in the present calculations, wall shear stress and heat transfer results for several turbulence models and their associated wall treatments are first compared for flow in a single tube that is representative of a coolant channel in the prismatic HTGR core. The results are compared to published correlations for wall shear stress and Nusselt number in turbulent pipe flow. Turbulence models that perform well are then used to make bypass flow calculations in a symmetric onetwelfth sector of a prismatic block that includes bypass flow. The comparison of shear stress and Nusselt number results with published correlations constitutes a partial validation of the CFD model. Calculations are also compared to ones made previously using a different CFD code. Results indicate that increasing surface roughness increases the maximum fuel and helium temperatures as do increases in gap width. However, maximum coolant temperature variation due to increased gap width is not changed by surface roughness.

  15. Portable water filtration system for oil well fractionation

    SciTech Connect (OSTI)

    Seibert, D. L.

    1985-08-13

    The invention comprises a portable, multi-stage filtration system utilized in filtering water for an oil and gas stimulation process commonly known as fracking. Three stages are used, the first being a straining operation reducing the size of particulate matter in the water to about three-eighths of an inch. The second stage is a centrifugal separator, reducing the particle size to about 50 microns. The final stage utilizes a cartridge-type filter giving a final particle size in the water of about 5 microns. In this manner, water which is injected into the well head during the fracking process and which is obtained from readily available sources such as ponds, streams and the like is relatively free of particulate matter which can foul the fracking process. The invention, by virtue of being mounted on a trailer, is portable and thus can be easily moved from site to site. Water flow rates obtained using the invention are between 250 and 300 gallons per minute, sufficient for processing a small to medium sized well.

  16. ALTERNATE HIGH EFFICIENCY PARTICULATE AIR (HEPA) FILTRATION SYSTEM

    SciTech Connect (OSTI)

    Bruce Bishop; Robert Goldsmith; Karsten Nielsen; Phillip Paquette

    2002-08-16

    In Phase IIA of this project, CeraMem has further developed and scaled up ceramic HEPA filters that are appropriate for use on filtration of vent gas from HLW tanks at DOE sites around the country. This work included procuring recrystallized SiC monoliths, developing membrane and cement materials, and defining a manufacturing process for the production of prototype full sizes HEPA filters. CeraMem has demonstrated that prototype full size filters can be manufactured by producing 9 full size filters that passed DOP aerosol testing at the Oak Ridge Filter Test Facility. One of these filters was supplied to the Savannah River Technical Center (SRTC) for process tests using simulated HLW tank waste. SRTC has reported that the filter was regenerable (with some increase in pressure drop) and that the filter retained its HEPA retention capability. CeraMem has also developed a Regenerable HEPA Filter System (RHFS) design and acceptance test plan that was reviewed by DOE personnel. The design and acceptance test plan form the basis of the system proposal for follow-on work in Phase IIB of this project.

  17. Vit Plant receives and sets key air filtration equipment for Low Activity Waste Facility

    Broader source: Energy.gov [DOE]

    WTP lifted a nearly 100-ton carbon bed absorber into the Low-Activity Waste Facility. This key piece of air-filtration equipment will remove mercury and acidic gases before air is channeled through...

  18. Self-healing properties of water filtration membranes containing amphiphilic comb polymer

    E-Print Network [OSTI]

    Devereaux, Caitlin Albright, 1980-

    2004-01-01

    (cont.) and filtration experiments, as well as other characterization techniques. Surface analysis is accomplished via x-ray photoelectron spectroscopy (XPS). Membrane samples are cleaned (in hydrogen peroxide or ...

  19. Form, function and flow in the plankton : jet propulsion and filtration by pelagic tunicates

    E-Print Network [OSTI]

    Sutherland, Kelly Rakow

    2010-01-01

    Trade-offs between filtration rate and swimming performance among several salp species with distinct morphologies and swimming styles were compared. Small-scale particle encounter at the salp filtering apparatus was also ...

  20. Design of a small-scale continuous linear motion pharmaceutical filtration module

    E-Print Network [OSTI]

    Wong, Katherine Wing-Shan

    2010-01-01

    A new small-scale continuous linear motion pharmaceutical filtration prototype was designed, fabricated, and tested. The goal of this unit is to filter an Active Pharmaceutical Ingredient (API) from a mixture of API ...

  1. Design and testing of an experiment to measure self-filtration in particulate suspensions

    E-Print Network [OSTI]

    Flander, Mattias S. (Mattias Simon)

    2011-01-01

    An experiment for measuring self-filtration in terms of change in volume fraction downstream of a constriction compared to volume fraction upstream of said constriction was designed and tested. The user has the ability to ...

  2. A Brief Review of Filtration Studies for Waste Treatment at the Hanford Site

    SciTech Connect (OSTI)

    Daniel, Richard C.; Schonewill, Philip P.; Shimskey, Rick W.; Peterson, Reid A.

    2010-12-01

    This document completes the requirements of Milestone 1-2, PNNL Draft Literature Review, discussed in the scope of work outlined in the EM-31 Support Project task plan WP-2.3.6-2010-1. The focus of task WP 2.3.6 is to improve the U.S. Department of Energy’s (DOE’s) understanding of filtration operations for high-level waste (HLW) to enhance filtration and cleaning efficiencies, thereby increasing process throughput and reducing the sodium demand (through acid neutralization). Developing the processes for fulfilling the cleaning/backpulsing requirements will result in more efficient operations for both the Hanford Tank Waste Treatment and Immobilization Plant (WTP) and the Savannah River Site (SRS), thereby increasing throughput by limiting cleaning cycles. The purpose of this document is to summarize Pacific Northwest National Laboratory’s (PNNL’s) literature review of historical filtration testing at the laboratory and of testing found in peer-reviewed journals. Eventually, the contents of this document will be merged with a literature review by SRS to produce a summary report for DOE of the results of previous filtration testing at the laboratories and the types of testing that still need to be completed to address the questions about improved filtration performance at WTP and SRS. To this end, this report presents 1) a review of the current state of crossflow filtration knowledge available in the peer-reviewed literature, 2) a detailed review of PNNL-related filtration studies specific to the Hanford site, and 3) an overview of current waste filtration models developed by PNNL and suggested avenues for future model development.

  3. Can combining economizers with improved filtration save energy and protect equipment in data centers?

    SciTech Connect (OSTI)

    Shehabi, Arman; Ganguly, Srirupa; Gundel, Lara A.; Horvath, Arpad; Kirchstetter, Thomas W.; Lunden, Melissa M.; Tschudi, William; Gadgil, Ashok J.; Nazaroff, William W

    2009-06-05

    Economizer use in data centers is an energy efficiency strategy that could significantly limit electricity demand in this rapidly growing economic sector. Widespread economizer implementation, however, has been hindered by potential equipment reliability concerns associated with exposing information technology equipment to particulate matter of outdoor origin. This study explores the feasibility of using economizers in data centers to save energy while controlling particle concentrations with high-quality air filtration. Physical and chemical properties of indoor and outdoor particles were analyzed at an operating northern California data center equipped with an economizer under varying levels of air filtration efficiency. Results show that when improved filtration is used in combination with an economizer, the indoor/outdoor concentration ratios for most measured particle types were similar to levels when using conventional filtration without economizers. An energy analysis of the data center reveals that, even during the summer months, chiller savings from economizer use greatly outweigh any increase in fan power associated with improved filtration. These findings indicate that economizer use combined with improved filtration could reduce data center energy demand while providing a level of protection from particles of outdoor origin similar to that observed with conventional design.

  4. AMPHIBIANS AND REPTILES OF THE GREAT FALLS BYPASSED REACHES IN SOUTH CAROLINA

    E-Print Network [OSTI]

    Dorcas, Michael E.

    of the Catawba River situated only slightly north of the juncture of the Piedmont and Upper Coastal Plain of the amphibians and reptiles inhabiting the Great Falls Bypassed Reaches of the Catawba River in South Carolina salamanders, 7 turtles, 6 lizards, and 11 snakes. No species of amphibian or reptile considered rare

  5. BYPASS SYSTEM FOR SHUNTING OF ELECTROMAGNETS FOR ACCELERATORS AND STORAGE RINGS

    E-Print Network [OSTI]

    Kozak, Victor R.

    power source of the electromagnet and energy dump to a ballast load. The bypass module is remotely monitored and controlled through a CAN-bus. The SHUNT-20 modules are made by the Switch Mode Technology with application of the up-to-date components in the "Euromechanics" standard. INTRODUCTION Designing of compact

  6. Particulate Emissions Control by Advanced Filtration Systems or GDI Engines

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  7. Polymer filtration systems for dilute metal ion recovery

    SciTech Connect (OSTI)

    Smith, B.F.; Robison, T.W.; Jarvinen, G.D.

    1998-12-01

    Scientists at Los Alamos National Laboratory have developed a metal recovery system that meets the global treatment demands for all kinds of industrial and metal-processing streams. The Polymer Filtration (PF) System--a process that is easily operated and robust--offers metal-finishing businesses a convenient and inexpensive way to recover and recycle metal ions in-house, thus reducing materials costs, waste removal costs, and industrial liability. As a valuable economic and environmental asset, the PF System has been named a winner of a 1995 R and D 100 Award. These awards are presented annually by R and D Magazine to the one hundred most significant technical innovations of the year. The PF System is based on the use of water-soluble metal-binding polymers and on advanced ultrafiltration membranes. Customers for this technology will receive new soluble polymers, especially formulated for their waste stream, and the complete PF processing unit: a reaction reservoir, pumps, plumbing, controls, and the advanced ultrafiltration membranes, all in a skid mounted frame. Metal-bearing waste water is treated in the reaction reservoir, where the polymer binds with the metal ions under balanced acid/base conditions. The reservoir fluid is then pumped through the ultrafiltration system--a cartridge packed with ultrafiltration membranes shaped in hollow fibers. As the fluid travels inside the fiber, water and other small molecules--simple salts such as calcium and sodium, for example--pass through the porous membrane walls of the fibers and are discharged through the outlet as permeate. The polymer-bound metal, which is too large to pass through the pores, is both purified and concentrated inside the hollow fibers and is returned to the fluid reservoir for further waste water treatment.

  8. Filtration technology for the control of solid hazardous air pollutants in paint booth operations

    SciTech Connect (OSTI)

    Stolle, M.

    1997-12-31

    In October of 1996, the EPA released the draft Aerospace NESHAP regulation that targets hazardous air pollutant (HAP) emissions from aerospace manufacturing and rework operations. One of the key provisions focuses on the control of inorganic HAPs released from application operations involving hexavalent chromium based primers. The NESHAP regulation mandates that coating facilities which release inorganic HAPS meet specific particulate emission control efficiencies or requirements, and further specifies different control requirements for new and existing facilities. The provisions pertaining to inorganic HAP emissions from coating operations were developed through the efforts of many individuals from the industrial, military, manufacturing, and regulatory sectors, and were the subject of intense discussion that spanned a period of years. Throughout this process, a topic of major debate was the development of dry filter particulate control efficiency requirements that would achieve an appropriate level of emission control, and could reasonably met by manufacturers and filter suppliers alike. The control requirements that are the topic of this paper mandate specific collection efficiencies for various particle size ranges. Recent studies on particle size characteristics of overspray generated by hexavalent chrome primer applications indicate that the NESHAP standard may not achieve the level of emission control that was initially intended. This paper presents the results of a detailed, third party analysis that focuses on the actual control efficiencies for chromate-based priming operations that will be achieved by the new standard. Following a general filtration efficiency discussion, an overview of the procedure employed to evaluate the overall efficiencies that will be achieved by NESHAP compliant filters is provided. The data upon which the evaluation was derived are presented.

  9. Sediment-adsorbed total mercury flux through Yolo Bypass, the primary floodway and wetland in the Sacramento Valley, California

    E-Print Network [OSTI]

    Springborn, M; Singer, MB; Singer, MB; Dunne, T

    2011-01-01

    sediment transport in the Sacramento River, California.Sediment transport Mass balance Yolo Bypass California a b sand transport of total mercury and methyl mercury in the Sacramento River basin, California.

  10. Characterization, Leaching, and Filtrations Testing of Ferrocyanide Tank sludge (Group 8) Actual Waste Composite

    SciTech Connect (OSTI)

    Fiskum, Sandra K.; Billing, Justin M.; Crum, J. V.; Daniel, Richard C.; Edwards, Matthew K.; Shimskey, Rick W.; Peterson, Reid A.; MacFarlan, Paul J.; Buck, Edgar C.; Draper, Kathryn E.; Kozelisky, Anne E.

    2009-02-28

    This is the final report in a series of eight reports defining characterization, leach, and filtration testing of a wide variety of Hanford tank waste sludges. The information generated from this series is intended to supplement the Waste Treatment and Immobilization Plant (WTP) project understanding of actual waste behaviors associated with tank waste sludge processing through the pretreatment portion of the WTP. The work described in this report presents information on a high-iron waste form, specifically the ferrocyanide tank waste sludge. Iron hydroxide has been shown to pose technical challenges during filtration processing; the ferrocyanide tank waste sludge represented a good source of the high-iron matrix to test the filtration processing.

  11. Mechanism of RNA polymerase II bypass of oxidative cyclopurine DNA lesions

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Walmacq, Celine; Wang, Lanfeng; Chong, Jenny; Scibelli, Kathleen; Lubkowska, Lucyna; Gnatt, Averell; Brooks, Philip J.; Wang, Dong; Kashlev, Mikhail

    2015-01-20

    In human cells, the oxidative DNA lesion 8,5'-cyclo-2'-deoxyadenosine (CydA) induces prolonged stalling of RNA polymerase II (Pol II) followed by transcriptional bypass, generating both error-free and mutant transcripts with AMP misincorporated immediately downstream from the lesion. Here, we present biochemical and crystallographic evidence for the mechanism of CydA recognition. Pol II stalling results from impaired loading of the template base (5') next to CydA into the active site, leading to preferential AMP misincorporation. Such predominant AMP insertion, which also occurs at an abasic site, is unaffected by the identity of the 5´-templating base, indicating that it derives from nontemplated synthesismore »according to an A rule known for DNA polymerases and recently identified for Pol II bypass of pyrimidine dimers. Subsequent to AMP misincorporation, Pol II encounters a major translocation block that is slowly overcome. The translocation block combined with the poor extension of the dA.rA mispair reduce transcriptional mutagenesis. Moreover, increasing the active-site flexibility by mutation in the trigger loop, which increases the ability of Pol II to accommodate the bulky lesion, and addition of transacting factor TFIIF facilitate CydA bypass. Thus, blocking lesion entry to the active site, trans-lesion A rule synthesis, and translocation block are common features of transcription across different bulky DNA lesions.« less

  12. Percutaneous Endoluminal Bypass of Iliac Aneurysms with a Covered Stent

    SciTech Connect (OSTI)

    Ruebben, Alexander; Tettoni, Serena; Muratore, Pierluigi; Rossato, Dennis; Savio, Daniele; Rabbia, Claudio [Radiologia del Pronto Soccorso, Servizio di Angioradiologia, Azienda Ospedaliera San Giovanni Battista, Corso Bramante 88, I-10126 Turin (Italy)

    1998-07-15

    To evaluate the feasibility of percutaneous treatment of iliac aneurysms, a covered stent was inserted in nine men suffering from common iliac artery aneurysms (six cases), external iliac aneurysms (one case), or pseudoaneurysms (two cases). Placement of the stent was successful in all patients. In one patient, an endoprosthesis thrombosed after 15 days, but was successfully treated by thrombolysis and additional stent placement. At the follow-up examinations (mean period 22 months) all stent-grafts had remained patent. No late leakage or stenosis was observed.

  13. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation to the Implementation of Rainwater Harvesting and Filtration System

    E-Print Network [OSTI]

    to the Implementation of Rainwater Harvesting and Filtration System in the New Student Union Building (SUB) at UBC Shuyi of a project/report". #12;AN INVESTIGATION TO THE IMPLEMENTATION OF RAINWATER HARVESTING AND FILTRATION SYSTEM and flushing toilets. This project starts by outlining the components of rainwater harvesting (RWH) system

  14. UBC Social Ecological Economic Development Studies (SEEDS) Student Report An Investigation into South Campus Stormwater Catchment and Filtration Technologies

    E-Print Network [OSTI]

    into South Campus Stormwater Catchment and Filtration Technologies Jing Ming Qiu, Jing Wen Lu, Lichen Yan;1 An Investigation into South Campus Stormwater Catchment and Filtration Technologies Jing Ming Qiu Jing Wen Lu to save water consumption and be environmentally friendly, three sustainable stormwater catchment systems

  15. Evaluation of Side Stream Filtration Technology at Oak Ridge National Laboratory

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12, 2015 InfographiclighbulbsDepartmentDeveloping new| Department ofSeptember

  16. Flux Enhancement in Crossflow Membrane Filtration: Fouling and It's Minimization by Flow Reversal

    SciTech Connect (OSTI)

    Shamsuddin Ilias

    2005-08-04

    Fouling problems are perhaps the single most important reason for relatively slow acceptance of ultrafiltration in many areas of chemical and biological processing. To overcome the losses in permeate flux associated with concentration polarization and fouling in cross flow membrane filtration, we investigated the concept of flow reversal as a method to enhance membrane flux in ultrafiltration. Conceptually, flow reversal prevents the formation of stable hydrodynamic and concentration boundary layers at or near the membrane surface. Further more, periodic reversal of the flow direction of the feed stream at the membrane surface results in prevention and mitigation of membrane fouling. Consequently, these advantages are expected to enhance membrane flux significantly. A crossflow membrane filtration unit was designed and built to test the concept of periodic flow reversal for flux enhancement. The essential elements of the system include a crossflow hollow fiber membrane module integrated with a two-way valve to direct the feed flow directions. The two-way valve is controlled by a controller-timer for periodic reversal of flow of feed stream. Another important feature of the system is that with changing feed flow direction, the permeate flow direction is also changed to maintain countercurrent feed and permeate flows for enhanced mass transfer driving force (concentration difference). Three feed solutions (Bovine serum albumin (BSA), apple juice and citrus fruit pectin) were studied in crossflow membrane filtration. These solutes are well-known in membrane filtration for their fouling and concentration polarization potentials. Laboratory-scale tests on a hollow-fiber ultrafiltration membrane module using each of the feed solutes show that under flow reversal conditions, the permeate flux is significantly enhanced when compared with the conventional unidirectional flow. The flux enhancement is dramatic (by an order of magnitude) with increased feed concentration and operating transmembrane pressure. Thus, flow reversal technology seems an attractive alternative to mitigate fouling problem in crossflow membrane filtration.

  17. Indestructible Ultra-filtration: Ceramic HEPA Filters - Energy Innovation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACT EVALUATION PLAN FOR THE SITE-218in a V2O5IonicIndependent Study

  18. In: J. Waterway, Port, Coastal, and Ocean Engineering, 126(3): 305-313, 2000. Reservoir Model of Ebb-Tidal Shoal Evolution and Sand Bypassing

    E-Print Network [OSTI]

    US Army Corps of Engineers

    of Ebb-Tidal Shoal Evolution and Sand Bypassing By Nicholas C. Kraus,1 Member, ASCE ABSTRACT A mathematical model is presented for calculating the change in volume and sand-bypassing rate at ebb reservoir can fill to a maximum (equilibrium) volume. The ratio of the input longshore sand transport rate

  19. The removal of precious metals by conductive polymer filtration

    SciTech Connect (OSTI)

    Cournoyer, M.E.

    1996-10-01

    The growing demand for platinum-group metals (PGM) within the DOE complex and in industry, the need for modern and clean processes, and the increasing volume of low-grade material for secondary PGM recovery has a direct impact on the industrial practice of recovering and refining precious metals. There is a tremendous need for advanced metal ion recovery and waste minimization techniques, since the currently used method of precipitation-dissolution is inadequate. Los Alamos has an integrated program in ligand-design and separations chemistry which has developed and evaluated a series of water- soluble metal-binding polymers for recovering actinides and toxic metals from variety of process streams. A natural extension of this work is to fabricate these metal-selective polymers into membrane based separation unites, i.e., hollow-fiber membranes. In the present investigation, the material for a novel hollow-fiber membrane is characterized and its selectivity for PGM reported. Energy and waste savings and economic competitiveness are also described.

  20. On the splitting of the Bloch-Beilinson filtration Arnaud BEAUVILLE

    E-Print Network [OSTI]

    Beauville, Arnaud

    (X) , with CHp (X) = F0 CHp (X) . . . Fp+1 (X) = 0 and F1 CH(X) = Ker cX . We refer to [J] for a discussion graduation given by CHp (A) = s CHp s(A) , where CHp s(A) is the subspace of elements CHp (A) with k A = k2 not define the required filtration because the vanishing of the terms CHp s(A) for s

  1. EXPERIMENTS ON CAKE DEVELOPMENT IN CROSSFLOW FILTRATION FOR HIGH LEVEL WASTE

    SciTech Connect (OSTI)

    Duignan, M.; Nash, C.

    2011-04-14

    Crossflow filtration is a key process step in many operating and planned waste treatment facilities to separate undissolved solids from supernate slurries. This separation technology generally has the advantage of self cleaning through the action of wall shear stress, which is created by the flow of waste slurry through the filter tubes. However, the ability of filter wall self cleaning depends on the slurry being filtered. Many of the alkaline radioactive wastes are extremely challenging to filtration, e.g., those containing compounds of aluminum and iron, which have particles whose size and morphology reduces permeability. Low filter flux can be a bottleneck in waste processing facilities such as the Salt Waste Processing Facility at the Savannah River Site and the Waste Treatment Plant at the Hanford Site. Any improvement to the filtration rate would lead directly to increased throughput of the entire process. To date, increased rates are generally realized by either increasing the crossflow filter axial flowrate, which is limited by pump capacity, or by increasing filter surface area, which is limited by space and increases the required pump load. In the interest of accelerating waste treatment processing, DOE has funded studies to better understand filtration with the goal of improving filter fluxes in existing crossflow equipment. The Savannah River National Laboratory (SRNL) was included in those studies, with a focus on startup techniques and filter cake development. This paper discusses those filter studies. SRNL set up both dead-end and crossflow filter tests to better understand filter performance based on filter media structure, flow conditions, and filter cleaning. Using non-radioactive simulated wastes, which were both chemically and physically similar to the actual radioactive wastes, the authors performed several tests to demonstrate increases in filter performance. With the proper use of filter flow conditions filter flow rates can be increased over rates currently realized today. This paper describes the selection of a challenging simulated waste and crossflow filter tests to demonstrate how performance can be improved over current operation.

  2. FLUX ENHANCEMENT IN CROSSFLOW MEMBRANE FILTRATION: FOULING AND IT'S MINIMIZATION BY FLOW REVERSAL

    SciTech Connect (OSTI)

    Shamsuddin Ilias

    2005-01-25

    Fouling problems are perhaps the single most important reason for relatively slow acceptance of ultrafiltration in many areas of chemical and biological processing. To overcome the losses in permeate flux associated with concentration polarization and fouling in cross flow membrane filtration, we investigated the concept of flow reversal as a method to enhance membrane flux in ultrafiltration. Conceptually, flow reversal prevents the formation of stable hydrodynamic and concentration boundary layers at or near the membrane surface. Further more, periodic reversal of the flow direction of the feed stream at the membrane surface results in prevention and mitigation of membrane fouling. Consequently, these advantages are expected to enhance membrane flux significantly. A crossflow membrane filtration unit was designed and built to test the concept of periodic flow reversal for flux enhancement. The essential elements of the system include a crossflow hollow fiber membrane module integrated with a two-way valve to direct the feed flow directions. The two-way valve is controlled by a controller-timer for periodic reversal of flow of feed stream. Another important feature of the system is that with changing feed flow direction, the permeate flow direction is also changed to maintain countercurrent feed and permeate flows for enhanced mass transfer driving force (concentration difference). In this report, we report our application of Flow Reversal technique in clarification of apple juice containing pectin. The presence of pectin in apple juice makes the clarification process difficult and is believed to cause membrane fouling. Of all compounds found in apple juice, pectin is most often identified as the major hindrance to filtration performance. Based on our ultrafiltration experiments with apple juice, we conclude that under flow reversal conditions, the permeate flux is significantly enhanced when compared with the conventional unidirectional flow. Thus, flow reversal technology seems an attractive alternative to mitigate fouling problem in crossflow membrane filtration.

  3. Open cycle ocean thermal energy conversion steam control and bypass system

    DOE Patents [OSTI]

    Wittig, J. Michael (West Goshen, PA); Jennings, Stephen J. (Radnor Township, Delaware County, PA)

    1980-01-01

    Two sets of hinged control doors for regulating motive steam flow from an evaporator to a condenser alternatively through a set of turbine blades in a steam bypass around the turbine blades. The evaporator has a toroidal shaped casing situated about the turbine's vertical axis of rotation and an outlet opening therein for discharging motive steam into an annular steam flow path defined between the turbine's radially inner and outer casing structures. The turbine blades extend across the steam flow path intermediate the evaporator and condenser. The first set of control doors is arranged to prevent steam access to the upstream side of the turbine blades and the second set of control doors acts as a bypass around the blades so as to maintain equilibrium between the evaporator and condenser during non-rotation of the turbine. The first set of control doors preferably extend, when closed, between the evaporator casing and the turbine's outer casing and, when open, extend away from the axis of rotation. The second set of control doors preferably constitute a portion of the turbine's outer casing downstream from the blades when closed and extend, when open, toward the axis of rotation. The first and second sets of control doors are normally held in the open and closed positions respectively by locking pins which may be retracted upon detecting an abnormal operating condition respectively to permit their closing and opening and provide steam flow from the evaporator to the condenser.

  4. Electrical and thermal finite element modeling of arc faults in photovoltaic bypass diodes.

    SciTech Connect (OSTI)

    Bower, Ward Isaac; Quintana, Michael A.; Johnson, Jay

    2012-01-01

    Arc faults in photovoltaic (PV) modules have caused multiple rooftop fires. The arc generates a high-temperature plasma that ignites surrounding materials and subsequently spreads the fire to the building structure. While there are many possible locations in PV systems and PV modules where arcs could initiate, bypass diodes have been suspected of triggering arc faults in some modules. In order to understand the electrical and thermal phenomena associated with these events, a finite element model of a busbar and diode was created. Thermoelectrical simulations found Joule and internal diode heating from normal operation would not normally cause bypass diode or solder failures. However, if corrosion increased the contact resistance in the solder connection between the busbar and the diode leads, enough voltage potentially would be established to arc across micron-scale electrode gaps. Lastly, an analytical arc radiation model based on observed data was employed to predicted polymer ignition times. The model predicted polymer materials in the adjacent area of the diode and junction box ignite in less than 0.1 seconds.

  5. Tumor necrosis factor-alpha-induced reduction of glomerular filtration rate in rats with fulminant hepatic failure.

    E-Print Network [OSTI]

    2014-01-01

    filtration rate using FITC-inulin. Am J Physiol 1999;276:rate by single-bolus inulin: a comparison of estimationanalogues on glomerular inulin space of isolated rats renal

  6. Delivering a low-cost, reliable drip irrigation filtration system for micro-irrigation in developing countries

    E-Print Network [OSTI]

    Greenlee, Alison S.

    The cylindrical filters presently used in drip irrigation systems frequently clog, increasing pressure loss and lowering the flow rate through the filters. This work investigates alternative filtration strategies that ...

  7. Pyrolysis Oil Stabilization: Hot-Gas Filtration; Cooperative Research and Development Final Report, CRADA Number CRD-09-333

    SciTech Connect (OSTI)

    Baldwin, R.

    2012-07-01

    The hypothesis that was tested in this task was that separation of char, with its associated mineral matter from pyrolysis vapors before condensation, will lead to improved oil quality and stability with respect to storage and transportation. The metric used to evaluate stability in this case was a 10-fold reduction in the rate of increase of viscosity as determined by ASTM D445 (the accelerated aging test). The primary unit operation that was investigated for this purpose was hot-gas filtration. A custom-built heated candle filter system was fabricated by the Pall Corporation and furnished to NREL for this test campaign. This system consisted of a candle filter element in a containment vessel surrounded by heating elements on the external surface of the vessel. The filter element and housing were interfaced to NREL?s existing 0.5 MTD pyrolysis Process Development Unit (PDU). For these tests the pyrolysis reactor of the PDU was operated in the entrained-flow mode. The HGF test stand was installed on a slipstream from the PDU so that both hot-gas filtered oil and bio-oil that was not hot-gas filtered could be collected for purposes of comparison. Two filter elements from Pall were tested: (1) porous stainless steel (PSS) sintered metal powder; (2) sintered ceramic powder. An extremely sophisticated bio-oil condensation and collection system was designed and fabricated at NREL and interfaced to the filter unit.

  8. A High Bandwidth, Bypass, Transient-Mode SigmaDelta DCDC Switching Boost Regulator with Wide LC Compliance

    E-Print Network [OSTI]

    Rincon-Mora, Gabriel A.

    compensation circuit. However, sliding-mode boost DC-DC converters designed to tolerate wide LC variations proposes a switching boost converter with a high bandwidth, bypass, path that yields fast transient of boost converters [2] and the resulting instability, the above requirement is more pronounced

  9. Multi-Objective Analysis for Ecosystem Reconciliation on an Engineered Floodplain: The Yolo Bypass in California's Central Valley

    E-Print Network [OSTI]

    Pasternack, Gregory B.

    by restoring natural hydrologic and successional processes. However levees, dams, and development prevent-exist. Flood control bypasses are a particularly promising location for reconciling historical fish and bird-objective optimization to help planners choose management options that best improve habitat quality for fish and birds

  10. CFD Analysis of Core Bypass Flow and Crossflow in the Prismatic Very High Temperature Gas-cooled Nuclear Reactor 

    E-Print Network [OSTI]

    Wang, Huhu 1985-

    2012-12-13

    effect. The bypass flow occurs when the coolant flow into gaps between fuel blocks. These gaps are formed as a result of carbon expansion and shrinkage induced by radiations and manufacturing and installation errors. Hot spots may appear in the core...

  11. Particle Image Velocimetry Measurements and Analysis of Bypass Data for a Scaled 6mm Gap

    SciTech Connect (OSTI)

    J.R. Wolf; T.E. Conder; R.R. Schultz

    2012-09-01

    The purpose of the fluid dynamics experiments in the MIR (Matched Index of-Refraction) flow system at Idaho National Laboratory (INL) is to develop benchmark databases for the assessment of Computational Fluid Dynamics (CFD) solutions of the momentum equations, scalar mixing, and turbulence models for the flow ratios between coolant channels and bypass gaps in the interstitial regions of typical prismatic standard fuel element (SFE) or upper reflector block geometries of typical Modular High-temperature Gas-cooled Reactors (MHTGR) in the limiting case of negligible buoyancy and constant fluid properties. The experiments will use optical techniques, primarily particle image velocimetry (PIV) in the INL Matched Index of Refraction (MIR) flow system.

  12. A preliminary assessment of beryllium dust oxidation during a wet bypass accident in a fusion reactor

    SciTech Connect (OSTI)

    Brad J. Merrill; Richard L. Moore; J. Phillip Sharp

    2008-09-01

    A beryllium dust oxidation model has been developed at the Idaho National Laboratory (INL) by the Fusion Safety Program (FSP) for the MELCOR safety computer code. The purpose of this model is to investigate hydrogen production from beryllium dust layers on hot surfaces inside a fusion reactor vacuum vessel (VV) during in-vessel loss-of-cooling accidents (LOCAs). This beryllium dust oxidation model accounts for the diffusion of steam into a beryllium dust layer, the oxidation of the dust particles inside this layer based on the beryllium-steam oxidation equations developed at the INL, and the effective thermal conductivity of this beryllium dust layer. This paper details this oxidation model and presents the results of the application of this model to a wet bypass accident scenario in the ITER device.

  13. FLUX ENHANCEMENT IN CROSSFLOW MEMBRANE FILTRATION: FOULING AND IT'S MINIMIZATION BY FLOW REVERSAL

    SciTech Connect (OSTI)

    Shamsuddin Ilias

    2004-06-14

    Fouling problems are perhaps the single most important reason for relatively slow acceptance of ultrafiltration in many areas of chemical and biological processing. To overcome the losses in permeate flux associated with concentration polarization and fouling in cross flow membrane filtration, we investigated the concept of flow reversal as a method to enhance membrane flux in ultrafiltration. Conceptually, flow reversal prevents the formation of stable hydrodynamic and concentration boundary layers at or near the membrane surface. Further more, periodic reversal of the flow direction of the feed stream at the membrane surface results in prevention and mitigation of membrane fouling. Consequently, these advantages are expected to enhance membrane flux significantly. A crossflow membrane filtration unit was designed and built to test the concept of periodic flow reversal for flux enhancement. The essential elements of the system include a crossflow hollow fiber membrane module integrated with a two-way valve to direct the feed flow directions. The two-way valve is controlled by a controller-timer for periodic reversal of flow of feed stream. Another important feature of the system is that with changing feed flow direction, the permeate flow direction is also changed to maintain countercurrent feed and permeate flows for enhanced mass transfer driving force (concentration difference). In our previous report, we reported our work on UF of BSA. In this report, we report our continuing application of Flow Reversal technique in clarification of apple juice containing pectin. The presence of pectin in apple juice makes the clarification process difficult and is believed to cause membrane fouling. Of all compounds found in apple juice, pectin is most often identified as the major hindrance to filtration performance. Laboratory-scale tests on a hollow-fiber ultrafiltration membrane module using pectin in apple juice as feed show that under flow reversal conditions, the permeate flux is significantly enhanced when compared with the conventional unidirectional flow.

  14. Removal and recovery of metal ions from process and waste streams using polymer filtration

    SciTech Connect (OSTI)

    Jarvinen, G.D.; Smith, B.F.; Robison, T.W.; Kraus, K.M.; Thompson, J.A.

    1999-06-13

    Polymer Filtration (PF) is an innovative, selective metal removal technology. Chelating, water-soluble polymers are used to selectively bind the desired metal ions and ultrafiltration is used to concentrate the polymer-metal complex producing a permeate with low levels of the targeted metal ion. When applied to the treatment of industrial metal-bearing aqueous process streams, the permeate water can often be reused within the process and the metal ions reclaimed. This technology is applicable to many types of industrial aqueous streams with widely varying chemistries. Application of PF to aqueous streams from nuclear materials processing and electroplating operations will be described.

  15. Hybrid Filtration Membranes incorporating Nanoporous Silica within a Nanoscale Alumina Fibre Scaffold

    E-Print Network [OSTI]

    Su, Veronica Mei Tiing; Clyne, Trevor William

    2015-06-11

    peristaltic pump. The pressure drop across the membrane was approximately 0.1-0.7 bar. Corresponding volumetric flow rates were measured. Fig.1 Schematic depiction of the set-up employed for measurement of the membrane permeability and the filtration... thoroughly with DI water. A vacuum pump was used to draw out trapped air within the bundles and promote water penetration. Excess water was removed with a pipette and the samples were dried at 80?C overnight. The volume fraction of fibre in the assembly...

  16. Multifunctional nanocomposites of carbon nanotubes and nanoparticles formed via vacuum filtration

    DOE Patents [OSTI]

    Hersam, Mark C; Ostojic, Gordana; Liang, Yu Teng

    2013-10-22

    In one aspect, the present invention provides a method of forming a film of nanocomposites of carbon nanotubes (CNTs) and platinum (Pt) nanoparticles. In one embodiment, the method includes the steps of (a) providing a first solution that contains a plurality of CNTs, (b) providing a second solution that contains a plurality of Pt nanoparticles, (c) combining the first solution and the second solution to form a third solution, and (d) filtering the third solution through a nanoporous membrane using vacuum filtration to obtain a film of nanocomposites of CNTs and Pt nanoparticles.

  17. PERFORMANCE IMPROVEMENT OF CROSS-FLOW FILTRATION FOR HIGH LEVEL WASTE TREATMENT

    SciTech Connect (OSTI)

    Duignan, M.; Nash, C.; Poirier, M.

    2011-01-12

    In the interest of accelerating waste treatment processing, the DOE has funded studies to better understand filtration with the goal of improving filter fluxes in existing cross-flow equipment. The Savannah River National Laboratory (SRNL) was included in those studies, with a focus on start-up techniques, filter cake development, the application of filter aids (cake forming solid precoats), and body feeds (flux enhancing polymers). This paper discusses the progress of those filter studies. Cross-flow filtration is a key process step in many operating and planned waste treatment facilities to separate undissolved solids from supernate slurries. This separation technology generally has the advantage of self-cleaning through the action of wall shear stress created by the flow of waste slurry through the filter tubes. However, the ability of filter wall self-cleaning depends on the slurry being filtered. Many of the alkaline radioactive wastes are extremely challenging to filtration, e.g., those containing compounds of aluminum and iron, which have particles whose size and morphology reduce permeability. Unfortunately, low filter flux can be a bottleneck in waste processing facilities such as the Savannah River Modular Caustic Side Solvent Extraction Unit and the Hanford Waste Treatment Plant. Any improvement to the filtration rate would lead directly to increased throughput of the entire process. To date increased rates are generally realized by either increasing the cross-flow filter axial flowrate, limited by pump capacity, or by increasing filter surface area, limited by space and increasing the required pump load. SRNL set up both dead-end and cross-flow filter tests to better understand filter performance based on filter media structure, flow conditions, filter cleaning, and several different types of filter aids and body feeds. Using non-radioactive simulated wastes, both chemically and physically similar to the actual radioactive wastes, the authors performed several tests to demonstrate increases in filter performance. With the proper use of filter flow conditions and filter enhancers, filter flow rates can be increased over rates currently realized today.

  18. Evaluating STT-RAM as an Energy-Efficient Main Memory Alternative

    E-Print Network [OSTI]

    1 Evaluating STT-RAM as an Energy-Efficient Main Memory Alternative Emre K¨ult¨ursay, Mahmut replace DRAM in main memory. Our goal is to make STT-RAM performance comparable to DRAM while providing write and row buffer write bypass, we show that STT-RAM main memory performance and energy can

  19. T-570: HP Security Bulletin- HP-UX Running OpenSSL, Remote Execution of Arbitrary Code, Denial of Service (DoS), Authentication Bypass

    Broader source: Energy.gov [DOE]

    A potential security vulnerability has been identified with HP-UX OpenSSL. This vulnerability could be exploited remotely to execute arbitrary code or create a Denial of Service (DoS) or an authentication bypass.

  20. Low fluid leakoff cementing compositions and filtration control additive for cement

    SciTech Connect (OSTI)

    Forrest, G.T.

    1993-07-20

    A cementing composition is described, for cementing oil or gas wells penetrating subterranean formations, capable of forming a fluid slurry when mixed with water comprising: dry hydraulic cement; and a filtration control additive of from about 0.2 to 5.0 percent by weight, based upon dry hydraulic cement, of finely ground peanut hulls, wherein 10 percent or more of the finely ground peanut hulls is in the particle size range of less than 20 standard sieve mesh and greater than 500 standard sieve mesh. In a process for cementing a casing in an oil or gas well penetrating a subterranean formation wherein a cement slurry, formed by mixing water and hydraulic cement, is pumped down the well to flow upwardly between the casing and the subterranean formation, the improvement is described comprising: utilizing as a filtration control additive of from about 0.2 to 5.0 percent by weight, based upon dry hydraulic cement, of finely ground peanut hulls, and utilizing finely ground peanut hulls wherein 10 percent or more of the finely ground peanut hulls is in the particle size range of less than 20 standard sieve mesh and greater than 500 standard sieve mesh.

  1. Method of treating emissions of a hybrid vehicle with a hydrocarbon absorber and a catalyst bypass system

    DOE Patents [OSTI]

    Roos, Bryan Nathaniel; Gonze, Eugene V; Santoso, Halim G; Spohn, Brian L

    2014-01-14

    A method of treating emissions from an internal combustion engine of a hybrid vehicle includes directing a flow of air created by the internal combustion engine when the internal combustion engine is spinning but not being fueled through a hydrocarbon absorber to collect hydrocarbons within the flow of air. When the hydrocarbon absorber is full and unable to collect additional hydrocarbons, the flow of air is directed through an electrically heated catalyst to treat the flow of air and remove the hydrocarbons. When the hydrocarbon absorber is not full and able to collect additional hydrocarbons, the flow of air is directed through a bypass path that bypasses the electrically heated catalyst to conserve the thermal energy stored within the electrically heated catalyst.

  2. Industrial Membrane Filtration and Short-bed Fractal Separation Systems for Separating Monomers from Heterogeneous Plant Material

    SciTech Connect (OSTI)

    Kearney, M; Kochergin, V; Hess, R; Foust, T; Herbst, R; Mann, N

    2005-03-31

    Large-scale displacement of petroleum will come from low-cost cellulosic feedstocks such as straw and corn stover crop residues. This project has taken a step toward making this projection a reality by reducing capital and energy costs, the two largest cost factors associated with converting cellulosic biomass to chemicals and fuels. The technology exists for using acid or enzyme hydrolysis processes to convert biomass feedstock (i.e., waste cellulose such as straw, corn stover, and wood) into their base monomeric sugar building blocks, which can, in turn, be processed into chemicals and fuels using a number of innovative fermentation technologies. However, while these processes are technically possible, practical and economic barriers make these processes only marginally feasible or not feasible at all. These barriers are due in part to the complexity and large fixed and recurring capital costs of unit operations including filtration, chromatographic separation, and ion exchange. This project was designed to help remove these barriers by developing and implementing new purification and separation technologies that will reduce the capital costs of the purification and chromatographic separation units by 50% to 70%. The technologies fundamental to these improvements are: (a) highly efficient clarification and purification systems that use screening and membrane filtration to eliminate suspended solids and colloidal material from feed streams and (b) fractal technology based chromatographic separation and ion exchange systems that can substitute for conventional systems but at much smaller size and cost. A non-hazardous ''raw sugar beet juice'' stream (75 to 100 gal/min) was used for prototype testing of these technologies. This raw beet juice stream from the Amalgamated Sugar LLC plant in Twin Falls, Idaho contained abrasive materials and membrane foulants. Its characteristics were representative of an industrial-scale heterogeneous plant extract/hydrolysis stream, and therefore was an ideal model system for developing new separation equipment. Subsequent testing used both synthetic acid hydrolysate and corn stover derived weak acid hydrolysate (NREL produced). A two-phased approach was used for the research and development described in this project. The first level of study involved testing the new concepts at the bench level. The bench-scale evaluations provided fundamental understanding of the processes, building and testing small prototype systems, and determining the efficiency of the novel processes. The second level of study, macro-level, required building larger systems that directly simulated industrial operations and provided validation of performance to minimize financial risk during commercialization. The project goals and scope included: (1) Development of low-capital alternatives to conventional crop-based purification/separation processes; and (2) Development of each process to the point that transition to commercial operation is low risk. The project reporting period was January 2001 to December 2004. This included a one year extension of the project (without additional funding).

  3. Monte Carlo Modeling of Nuclear Measurements in Vertical and Horizontal Wells in the Presence of Mud-Filtrate Invasion and Salt Mixing1

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    of Mud-Filtrate Invasion and Salt Mixing1 Alberto Mendoza2 , William E. Preeg3 , Carlos Torres-Verdín2 the influence of the spatial distributions of fluid saturation and salt concentration on generic compensated-bearing formation. The simulations also consider the mixing of salt between mud-filtrate and connate water. Subse

  4. Integrated reservoir characterization of a Tulare steamflood finds bypassed oil - South Belridge Field, Kern County, California

    SciTech Connect (OSTI)

    Walter, D.R.; Wylie, A.S. Jr.; Broussard, K.A. (Santa Fe Energy Resources, Bakersfield, CA (United States))

    1996-01-01

    Reservoir quality and producibility are directly related to the characteristics of the depositional lithofacies. Electric log gamma ray/resistivity profiles were used to define facies trends within the Tulare steamflood at South Belridge. Channel and non-channel facies profiles are distinctive across the lease with the channel sands having the better quality reservoir and greater net pay values. Sidewall core permeabilities were averaged over the main producing Tulare intervals with the channels averaging 2000-3000 millidarcies and non-channels 200-500 millidarcies. This supports the lithofacies trend and net pay maps. Although the approach is qualitative, it illustrates the dramatic permeability contrast between the channel and non-channel lithofacies. Temperature maps using downhole temperature surveys and flowline temperatures indicate channel facies temperatures up to 300[degrees] with the non-channel facies having 90[degrees] to 100[degrees] temperatures (near ambient). Higher temperatures also relate to higher average daily production rates for channel associated wells. Channel wells averaged greater than 30 BOPD while non-channel wells averaged 10 BOPD or less. New and replacement well nations have been high graded resulting in favorable production responses. Integration of the lithofacies, permeability and temperature data plus ongoing preventive production optimization work has led to a more efficient Tulare steamflood and identification of bypassed oil on the King-Ellis lease in the South Belridge Field.

  5. Integrated reservoir characterization of a Tulare steamflood finds bypassed oil - South Belridge Field, Kern County, California

    SciTech Connect (OSTI)

    Walter, D.R.; Wylie, A.S. Jr.; Broussard, K.A. [Santa Fe Energy Resources, Bakersfield, CA (United States)

    1996-12-31

    Reservoir quality and producibility are directly related to the characteristics of the depositional lithofacies. Electric log gamma ray/resistivity profiles were used to define facies trends within the Tulare steamflood at South Belridge. Channel and non-channel facies profiles are distinctive across the lease with the channel sands having the better quality reservoir and greater net pay values. Sidewall core permeabilities were averaged over the main producing Tulare intervals with the channels averaging 2000-3000 millidarcies and non-channels 200-500 millidarcies. This supports the lithofacies trend and net pay maps. Although the approach is qualitative, it illustrates the dramatic permeability contrast between the channel and non-channel lithofacies. Temperature maps using downhole temperature surveys and flowline temperatures indicate channel facies temperatures up to 300{degrees} with the non-channel facies having 90{degrees} to 100{degrees} temperatures (near ambient). Higher temperatures also relate to higher average daily production rates for channel associated wells. Channel wells averaged greater than 30 BOPD while non-channel wells averaged 10 BOPD or less. New and replacement well nations have been high graded resulting in favorable production responses. Integration of the lithofacies, permeability and temperature data plus ongoing preventive production optimization work has led to a more efficient Tulare steamflood and identification of bypassed oil on the King-Ellis lease in the South Belridge Field.

  6. Sputter deposition of thin film MIM capacitors on LTCC substrates for RF bypass and filtering applications

    SciTech Connect (OSTI)

    Murray, Jack [Missouri University of Science and Technology; O'Keefe, Matthew J. [Missouri University of Science and Technology; Wilder, Kristina [Missouri University of Science and Technology; Eatinger, Ryan [Kansas State University; Kuhn, William [Kansas State University; Krueger, Daniel S. [Honeywell Federal Manufacturing & Technologies; Wolf, J. Ambrose [Honeywell Federal Manufacturing & Technologies

    2011-08-31

    Thin film capacitors for RF bypass and filtering applications were sputter deposited onto low temperature co-fired ceramic (LTCC) substrates. The capacitors were configured in a metal-insulator-metal (MIM) design featuring 200 nm thick Al electrodes and a 300 nm thick Al{sub 2}O{sub 3} dielectric layer, with dimensions varied between ~150x150 ?m and ~750x750 ?m. DC current-voltage measurements (E ? 5 MV/cm) coupled with impedance analysis (?15 MHz) was used to characterize the resulting devices. More than 90% of the devices functioned as capacitors with high DC resistance (>20 M?) and low loss (tan ? <0.1). A second set of capacitors were made under the same experimental conditions with device geometries optimized for high frequency (?200 MHz) applications. These capacitors featured temperature coefficient of capacitance (TCC) values between 500 and 1000 ppm/°C as well as low loss and high self-resonant frequency performance (ESR <0.6 Ohms at self-resonance of 5.7 GHz for 82 pF). Capacitance and loss values were comparable between the capacitor structures of similar areas at the different frequency regimes.

  7. Simulated Waste for Leaching and Filtration Studies--Laboratory Preparation Procedure

    SciTech Connect (OSTI)

    Smith, Harry D.; Russell, Renee L.; Peterson, Reid A.

    2009-10-27

    This report discusses the simulant preparation procedure for producing multi-component simulants for leaching and filtration studies, including development and comparison activities in accordance with the test plan( ) prepared and approved in response to the Test Specification 24590-WTP-TSP-RT-06-006, Rev 0 (Smith 2006). A fundamental premise is that this approach would allow blending of the different components to simulate a wide variety of feeds to be treated in the Hanford Tank Waste Treatment and Immobilization Plant (WTP). For example, a given feed from the planned feed vector could be selected, and the appropriate components would then be blended to achieve a representation of that particular feed. Using the blending of component simulants allows the representation of a much broader spectrum of potential feeds to the Pretreatment Engineering Platform (PEP).

  8. Mathematical modeling of mass transfer during centrifugal filtration of polydisperse suspensions

    SciTech Connect (OSTI)

    V.F. Pozhidaev; Y.B. Rubinshtein; G.Y. Golberg; S.A. Osadchii

    2009-07-15

    A mass-transfer equation, the solution of which for given boundary conditions makes it possible to derive in analytical form a relationship between the extraction of the solid phase of a suspension into the centrifuge effluent and the fineness of the particles, is suggested on the basis of a model; this is of particular importance in connection with the development of a new trend in the utilization of filtering centrifuges - concentration of coal slurries by extraction into the centrifuge effluent of the finest particles, the ash content of which is substantially higher than that of particles of the coarser classes. Results are presented for production studies under conditions at an active establishment (the Neryungrinskaya Enrichment Factory); these results confirmed the adequacy of the mathematical model proposed: convergence of computed and experimental data was within the limits of the experimental error (no more than 3%). The model in question can be used to predict results of suspension separation by centrifugal filtration.

  9. Hydrogen gas sensing with networks of ultra-small palladium nanowires formed on filtration membranes.

    SciTech Connect (OSTI)

    Zeng, X. Q.; Latimer, M. L.; Xiao, Z. L.; Panuganti, S.; Welp, U.; Kwok, W. K.; Xu, T.

    2010-11-29

    Hydrogen sensors based on single Pd nanowires show promising results in speed, sensitivity, and ultralow power consumption. The utilization of single Pd nanowires, however, face challenges in nanofabrication, manipulation, and achieving ultrasmall transverse dimensions. We report on hydrogen sensors that take advantage of single palladium nanowires in high speed and sensitivity and that can be fabricated conveniently. The sensors are based on networks of ultrasmall (<10 nm) palladium nanowires deposited onto commercially available filtration membranes. We investigated the sensitivities and response times of these sensors as a function of the thickness of the nanowires and also compared them with a continuous reference film. The superior performance of the ultrasmall Pd nanowire network based sensors demonstrates the novelty of our fabrication approach, which can be directly applied to palladium alloy and other hydrogen sensing materials.

  10. Air Filtration for Fuel Cell Hawai`i Natural Energy Institute | School of Ocean & Earth Science & Technology

    E-Print Network [OSTI]

    Air Filtration for Fuel Cell Vehicles Hawai`i Natural Energy Institute | School of Ocean & Earth, hardware and protocols which will allow Fuel Cell Electric Buses (FCEB) to safely operate in Hawai & Significance A major challenge to implementing fuel cell technology into transportation is the degradation

  11. Non-biodegradable landfill leachate treatment by combined process of agitation, coagulation, SBR and filtration

    SciTech Connect (OSTI)

    Abood, Alkhafaji R. [State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074 (China); Thi Qar University, Nasiriyah (Iraq); Bao, Jianguo, E-mail: bjianguo888@126.com [State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074 (China); Du, Jiangkun; Zheng, Dan; Luo, Ye [State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan 430074 (China)

    2014-02-15

    Highlights: • A novel method of stripping (agitation) was investigated for NH{sub 3}-N removal. • PFS coagulation followed agitation process enhanced the leachate biodegradation. • Nitrification–denitrification achieved by changing operation process in SBR treatment. • A dual filter of carbon-sand is suitable as a polishing treatment of leachate. • Combined treatment success for the complete treatment of non-biodegradable leachate. - Abstract: This study describes the complete treatment of non-biodegradable landfill leachate by combined treatment processes. The processes consist of agitation as a novel stripping method used to overcome the ammonia toxicity regarding aerobic microorganisms. The NH{sub 3}-N removal ratio was 93.9% obtained at pH 11.5 and a gradient velocity (G) 150 s{sup ?1} within a five-hour agitation time. By poly ferric sulphate (PFS) coagulation followed the agitation process; chemical oxygen demand (COD) and biological oxygen demand (BOD{sub 5}) were removed at 70.6% and 49.4%, respectively at an optimum dose of 1200 mg L{sup ?1} at pH 5.0. The biodegradable ratio BOD{sub 5}/COD was improved from 0.18 to 0.31 during pretreatment step by agitation and PFS coagulation. Thereafter, the effluent was diluted with sewage at a different ratio before it was subjected to sequencing batch reactor (SBR) treatment. Up to 93.3% BOD{sub 5}, 95.5% COD and 98.1% NH{sub 3}-N removal were achieved by SBR operated under anoxic–aerobic–anoxic conditions. The filtration process was carried out using sand and carbon as a dual filter media as polishing process. The final effluent concentration of COD, BOD{sub 5}, suspended solid (SS), NH{sub 3}-N and total organic carbon (TOC) were 72.4 mg L{sup ?1}, 22.8 mg L{sup ?1}, 24.2 mg L{sup ?1}, 18.4 mg L{sup ?1} and 50.8 mg L{sup ?1} respectively, which met the discharge standard. The results indicated that a combined process of agitation-coagulation-SBR and filtration effectively eliminated pollutant loading from landfill leachate.

  12. PARTICLE IMAGE VELOCIMETRY MEASUREMENTS IN A REPRESENTATIVE GAS-COOLED PRISMATIC REACTOR CORE MODEL: FLOW IN THE COOLANT CHANNELS AND INTERSTITIAL BYPASS GAPS

    SciTech Connect (OSTI)

    Thomas E. Conder; Richard Skifton; Ralph Budwig

    2012-11-01

    Core bypass flow is one of the key issues with the prismatic Gas Turbine-Modular Helium Reactor, and it refers to the coolant that navigates through the interstitial, non-cooling passages between the graphite fuel blocks instead of traveling through the designated coolant channels. To determine the bypass flow, a double scale representative model was manufactured and installed in the Matched Index-of-Refraction flow facility; after which, stereo Particle Image Velocimetry (PIV) was employed to measure the flow field within. PIV images were analyzed to produce vector maps, and flow rates were calculated by numerically integrating over the velocity field. It was found that the bypass flow varied between 6.9-15.8% for channel Reynolds numbers of 1,746 and 4,618. The results were compared to computational fluid dynamic (CFD) pre-test simulations. When compared to these pretest calculations, the CFD analysis appeared to under predict the flow through the gap.

  13. Filtration method characterizing the reversibility of colloidal fouling layers at a membrane surface: analysis through critical flux and osmotic pressure

    E-Print Network [OSTI]

    Benjamin Espinasse; Patrice Bacchin; Pierre Aimar

    2008-01-17

    A filtration procedure was developed to measure the reversibility of fouling during cross-flow filtration based on the square wave of applied pressure. The principle of this method, the apparatus required, and the associated mathematical relationships are detailed. This method allows for differentiating the reversible accumulation of matter on, and the irreversible fouling of, a membrane surface. Distinguishing these two forms of attachment to a membrane surface provides a means by which the critical flux may be determined. To validate this method, experiments were performed with a latex suspension at different degrees of destabilization (obtained by the addition of salt to the suspension) and at different cross-flow velocities. The dependence of the critical flux on these conditions is discussed and analysed through the osmotic pressure of the colloidal dispersion.

  14. Selective Filtration of Gadolinium Trichloride for Use in Neutron Detection in Large Water Cherenkov Detectors

    SciTech Connect (OSTI)

    Vagins, Mark R.

    2013-04-10

    Water Cherenkov detectors have been used for many years as inexpensive, effective detectors for neutrino interactions and nucleon decay searches. While many important measurements have been made with these detectors a major drawback has been their inability to detect the absorption of thermal neutrons. We believe an inexpensive, effective technique could be developed to overcome this situation via the addition to water of a solute with a large neutron cross section and energetic gamma daughters which would make neutrons detectable. Gadolinium seems an excellent candidate especially since in recent years it has become very inexpensive, now less than $8 per kilogram in the form of commercially-available gadolinium trichloride, GdCl{sub 3}. This non-toxic, non-reactive substance is highly soluble in water. Neutron capture on gadolinium yields a gamma cascade which would be easily seen in detectors like Super-Kamiokande. We have been investigating the use of GdCl{sub 3} as a possible upgrade for the Super-Kamiokande detector with a view toward improving its performance as a detector for atmospheric neutrinos, supernova neutrinos, wrong-sign solar neutrinos, reactor neutrinos, proton decay, and also as a target for the coming T2K long-baseline neutrino experiment. This focused study of selective water filtration and GdCl{sub 3} extraction techniques, conducted at UC Irvine, followed up on highly promising benchtop-scale and kiloton-scale work previously carried out with the assistance of 2003 and 2005 Advanced Detector Research Program grants.

  15. High-temperature electromagnetic filtration on the primary circuit of the Winfrith 100-MW nuclear plant

    SciTech Connect (OSTI)

    Bridle, D.A.; Bird, E.J.; Mitchell, C.R.

    1984-05-01

    This report details results of a program carried out by the UKAEA on the Winfrith SGHWR on the removal of particulate corrosion species from the primary coolant by high temperature magnetic filtration. The program has utilized a small fixed grid research filter (5 te h/sup -1/ flow) operating, on a once-through basis, directly on the primary coolant blowdown line. Activated corrosion products, containing in particular /sup 60/Co, are the dominant source which gives rise to occupational radiation exposure incurred in operating and maintaining most LWRs. The circulating crud in SGHWR is primarily hematite (..cap alpha..-Fe/sub 2/O/sub 3/) plus lesser amounts of magnetite (Fe/sub 3/O/sub 4/) and carries with it about 50% of the total /sup 60/Co activity in circulation as particulates. Studies carried out as part of this program have optimized the filter operating variables in terms of flow rate, operating cycle, and backwash parameters for maximum filter efficiency. Data are presented on the filter performance for the major particulate corrosion products and associated nuclides together with particle size performance data at different flow rates. Additional studies have focussed on deposition rates before and after the magnetic filter on a range of LWR circuit materials. Deposited films have been characterized chemically and radiochemically and assessments made of the effect of magnetic separation on the physical structure and activity of such films.

  16. Rotary Microfilter Media Evaluation

    SciTech Connect (OSTI)

    Poirier, M

    2005-04-20

    Savannah River National Laboratory (SRNL) received funding from DOE EM-21, Office of Cleanup Technologies, to develop the rotary microfilter for high level radioactive service. One aspect of this project evaluated alternative filter media to select one for the 2nd generation rotary microfilter being procured as a prefilter to a small column ion exchange process. The authors conducted screening tests on a variety of filter media and pore sizes using a stirred cell followed by pilot-scale testing on a more limited number of filter media and pore sizes with a three disk rotary microfilter. These tests used 5.6 molar sodium supernate, and sludge plus monosodium titanate (MST) solids. The conclusions from this work are: (1) The 0.1 {micro} nominal TruMem{reg_sign} ceramic and the Pall PMM M050 (0.5 {micro} nominal) stainless steel filter media produced the highest flux in rotary filter testing. (2) The Pall PMM M050 media produced the highest flux of the stainless steel media tested in rotary filter testing. (3) The Pall PMM M050 media met filtrate quality requirements for the rotary filter. (4) The 0.1 {micro} TruMem{reg_sign} and 0.1 {micro} Pall PMM media met filtrate quality requirements as well. (5) The Pall PMM M050 media produced comparable flux to the 0.1 {micro} TruMem{reg_sign} media, and proved more durable and easier to weld. Based on these test results, the authors recommend Pall PMM M050 filter media for the 2nd generation rotary microfilter.

  17. Filtrations in Dyson-Schwinger equations: next-to^{j} -leading log expansions systematically

    E-Print Network [OSTI]

    Olaf Krueger; Dirk Kreimer

    2015-02-11

    Dyson-Schwinger equations determine the Green functions $G^r(\\alpha,L)$ in quantum field theory. Their solutions are triangular series in a coupling constant $\\alpha$ and an external scale parameter $L$ for a chosen amplitude $r$, with the order in $L$ bounded by the order in the coupling. Perturbation theory calculates the first few orders in $\\alpha$. On the other hand, Dyson--Schwinger equations determine next-to$^{\\{\\mathrm{j}\\}}$-leading log expansions, $G^r(\\alpha,L) = 1 + \\sum_{j=0}^\\infty \\sum_{\\mathcal{M}} p_j^{\\mathcal{M}}\\alpha^j \\mathcal{M}(u)$. $\\sum_{\\mathcal{M}}$ sums a finite number of functions $\\mathcal{M}$ in $u = \\alpha L/2$. The leading logs come from the trivial representation $\\mathcal{M}(u) = \\begin{bsmallmatrix}\\bullet\\end{bsmallmatrix}(u)$ at $j=0$ with $p_0^{\\begin{bsmallmatrix}\\bullet\\end{bsmallmatrix}} = 1$. All non-leading logs are organized by the suppression in powers $\\alpha^j$. We describe an algebraic method to derive all next-to$^{\\{\\mathrm{j}\\}}$-leading log terms from the knowledge of the first $(j+1)$ terms in perturbation theory and their filtrations. This implies the calculation of the functions $\\mathcal{M}(u)$ and periods $p_j^\\mathcal{M}$. In the first part of our paper, we investigate the structure of Dyson-Schwinger equations and develop a method to filter their solutions. Applying renormalized Feynman rules maps each filtered term to a certain power of $\\alpha$ and $L$ in the log-expansion. Based on this, the second part derives the next-to$^{\\{\\mathrm{j}\\}}$-leading log expansions. Our method is general. Here, we exemplify it using the examples of the propagator in Yukawa theory and the photon self-energy in quantum electrodynamics. The reader may apply our method to any (set of) Dyson-Schwinger equation(s) appearing in renormalizable quantum field theories.

  18. Evaluation of the Ram-Jet device, a PCV air bleed. Technical report

    SciTech Connect (OSTI)

    Barth, E.A.

    1980-01-01

    The Environmental Protection Agency receives information about many systems which appear to offer potential for emission reduction or fuel economy improvement compared to conventional engines and vehicles. This report discusses EPA's evaluation of the Ram-Jet, a retrofit device marketed by Ed Almquist. It is designed to bleed in extra air to the engine by allowing ambient air to bypass the carburetor under high engine load conditions. The manufacturer claims the device reduces emission pollutants and improves fuel economy.

  19. Vehicle Technologies Office Merit Review 2015: Particulate Emissions Control by Advanced Filtration Systems for GDI Engines

    Broader source: Energy.gov [DOE]

    Presentation given by Argonne National Laboratory at 2015 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about particulate...

  20. Vehicle Technologies Office Merit Review 2014: Particulate Emissions Control by Advanced Filtration Systems for GDI Engines

    Broader source: Energy.gov [DOE]

    Presentation given by Argonne National Laboratory at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about particulate...

  1. Laboratory-scale evaluations of alternative plutonium precipitation methods

    SciTech Connect (OSTI)

    Martella, L.L.; Saba, M.T.; Campbell, G.K.

    1984-02-08

    Plutonium(III), (IV), and (VI) carbonate; plutonium(III) fluoride; plutonium(III) and (IV) oxalate; and plutonium(IV) and (VI) hydroxide precipitation methods were evaluated for conversion of plutonium nitrate anion-exchange eluate to a solid, and compared with the current plutonium peroxide precipitation method used at Rocky Flats. Plutonium(III) and (IV) oxalate, plutonium(III) fluoride, and plutonium(IV) hydroxide precipitations were the most effective of the alternative conversion methods tested because of the larger particle-size formation, faster filtration rates, and the low plutonium loss to the filtrate. These were found to be as efficient as, and in some cases more efficient than, the peroxide method. 18 references, 14 figures, 3 tables.

  2. A Chemical Genetics Analysis of the Roles of Bypass Polymerase DinB and DNA Repair Protein AlkB in Processing N[superscript 2]-Alkylguanine Lesions In Vivo

    E-Print Network [OSTI]

    Shrivastav, Nidhi

    DinB, the E. coli translesion synthesis polymerase, has been shown to bypass several N[superscript 2]-alkylguanine adducts in vitro, including N[superscript 2]-furfurylguanine, the structural analog of the DNA adduct formed ...

  3. Quantitative comparison of processes of oil-and water-based mud-filtrate invasion and corresponding effects on borehole resistivity measurements

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    for hydrocarbon exploration and production, drilling fluids sustain a pressure higher than that of formation into a porous and permeable rock formation as- suming 1D radial distributions of fluid saturation and fluid prop-filtrate and native fluids. The formation under analysis is 100% water saturated base case and is invaded

  4. Yakima and Touchet River Basins Phase II Fish Screen Evaluation, 2006-2007 Annual Report.

    SciTech Connect (OSTI)

    Chamness, Mickie; Tunnicliffe, Cherylyn [Pacific Northwest National Laboratory

    2007-03-01

    In 2006, Pacific Northwest National Laboratory (PNNL) researchers evaluated 27 Phase II fish screen sites in the Yakima and Touchet river basins. Pacific Northwest National Laboratory performs these evaluations for Bonneville Power Administration (BPA) to determine whether the fish screening devices meet those National Marine Fisheries (NMFS) criteria for juvenile fish screen design, that promote safe and timely passage of juvenile salmonids. The NMFS criteria against which the sites were evaluated are as follows: (1) a uniform flow distribution over the screen surface to minimize approach velocity; (2) approach velocities less than or equal to 0.4 ft/s protects the smallest salmonids from impingement; (3) sweep velocities that are greater than approach velocities to minimize delay of out-migrating juveniles and minimize sediment deposition near the screens; (4) a bypass flow greater than or equal to the maximum flow velocity vector resultant upstream of the screens to also minimize delay of out-migrating salmonids; (5) a gradual and efficient acceleration of flow from the upstream end of the site into the bypass entrance to minimize delay of out-migrating salmonids; and (6) screen submergence between 65% and 85% for drum screen sites. In addition, the silt and debris accumulation next to the screens should be kept to a minimum to prevent excessive wear on screens, seals and cleaning mechanisms. Evaluations consist of measuring velocities in front of the screens, using an underwater camera to assess the condition and environment in front of the screens, and noting the general condition and operation of the sites. Results of the evaluations in 2006 include the following: (1) Most approach velocities met the NMFS criterion of less than or equal to 0.4 ft/s. Of the sites evaluated, 31% exceeded the criterion at least once. Thirty-three percent of flat-plate screens had problems compared to 25% of drum screens. (2) Woody debris and gravel deposited during high river levels were a problem at several sites. In some cases, it was difficult to determine the bypass pipe was plugged until several weeks had passed. Slow bypass flow caused by both the obstructions and high river levels may have discouraged fish from entering the bypass, but once they were in the bypass, they may have had no safe exit. Perhaps some tool or technique can be devised that would help identify whether slow bypass flow is caused by pipe blockage or by high river levels. (3) Bypass velocities generally were greater than sweep velocities, but sweep velocities often did not increase toward the bypass. The latter condition could slow migration of fish through the facility. (4) Screen and seal materials generally were in good condition. (5) Automated cleaning brushes generally functioned properly; chains and other moving parts were typically well-greased and operative. (6) Washington Department of Fish and Wildlife (WDFW) and U.S. Bureau of Reclamation (USBR) generally operated and maintained fish screen facilities in a way that provided safe passage for juvenile fish. (7) Efforts with WDFW to find optimal louver settings at Naches-Selah were partly successful. The number of spots with excessive approach velocities was decreased, but we were unable to adjust the site to bring all approach values below 0.4 ft/s. (8) In some instances, irrigators responsible for specific maintenance at their sites (e.g., debris removal) did not perform their tasks in a way that provided optimum operation of the fish screen facility. Enforcement personnel proved effective at reminding irrigation districts of their responsibilities to maintain the sites for fish protection as well as irrigation. (9) We recommend placing datasheets providing up-to-date operating criteria and design flows in each site's logbox. The datasheet should include bypass design flows and a table showing depths of water over the weir and corresponding bypass flow. A similar datasheet relating canal gage readings and canal discharge in cubic feet per second would help identify times when the canal is taking mo

  5. A Crystallographic Study of the Role of Sequence Context in Thymine Glycol Bypass by a Replicative DNA Polymerase Serendipitously Sheds Light on the Exonuclease Complex

    SciTech Connect (OSTI)

    Aller, Pierre; Duclos, Stéphanie; Wallace, Susan S.; Doublié, Sylvie (Vermont)

    2012-06-27

    Thymine glycol (Tg) is the most common oxidation product of thymine and is known to be a strong block to replicative DNA polymerases. A previously solved structure of the bacteriophage RB69 DNA polymerase (RB69 gp43) in complex with Tg in the sequence context 5'-G-Tg-G shed light on how Tg blocks primer elongation: The protruding methyl group of the oxidized thymine displaces the adjacent 5'-G, which can no longer serve as a template for primer elongation [Aller, P., Rould, M. A., Hogg, M, Wallace, S. S. and Doublie S. (2007). A structural rationale for stalling of a replicative DNA polymerase at the most common oxidative thymine lesion, thymine glycol. Proc. Natl. Acad. Sci. USA, 104, 814-818.]. Several studies showed that in the sequence context 5'-C-Tg-purine, Tg is more likely to be bypassed by Klenow fragment, an A-family DNA polymerase. We set out to investigate the role of sequence context in Tg bypass in a B-family polymerase and to solve the crystal structures of the bacteriophage RB69 DNA polymerase in complex with Tg-containing DNA in the three remaining sequence contexts: 5'-A-Tg-G, 5'-T-Tg-G, and 5'-C-Tg-G. A combination of several factors - including the associated exonuclease activity, the nature of the 3' and 5' bases surrounding Tg, and the cis-trans interconversion of Tg - influences Tg bypass. We also visualized for the first time the structure of a well-ordered exonuclease complex, allowing us to identify and confirm the role of key residues (Phe123, Met256, and Tyr257) in strand separation and in the stabilization of the primer strand in the exonuclease site.

  6. Associations of blood lead, cadmium, and mercury with estimated glomerular filtration rate in the Korean general population: Analysis of 2008-2010 Korean National Health and Nutrition Examination Survey data

    SciTech Connect (OSTI)

    Kim, Yangho [Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan (Korea, Republic of)] [Department of Occupational and Environmental Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan (Korea, Republic of); Lee, Byung-Kook, E-mail: bklee@sch.ac.kr [Institute of Environmental and Occupational Medicine, Soonchunhyang University 646 Eupnae-ri, Shinchang-myun, Asan-si, Choongnam 336-745 (Korea, Republic of)] [Institute of Environmental and Occupational Medicine, Soonchunhyang University 646 Eupnae-ri, Shinchang-myun, Asan-si, Choongnam 336-745 (Korea, Republic of)

    2012-10-15

    Introduction: The objective of this study was to evaluate associations between blood lead, cadmium, and mercury levels with estimated glomerular filtration rate in a general population of South Korean adults. Methods: This was a cross-sectional study based on data obtained in the Korean National Health and Nutrition Examination Survey (KNHANES) (2008-2010). The final analytical sample consisted of 5924 participants. Estimated glomerular filtration rate (eGFR) was calculated using the MDRD Study equation as an indicator of glomerular function. Results: In multiple linear regression analysis of log2-transformed blood lead as a continuous variable on eGFR, after adjusting for covariates including cadmium and mercury, the difference in eGFR levels associated with doubling of blood lead were -2.624 mL/min per 1.73 m Superscript-Two (95% CI: -3.803 to -1.445). In multiple linear regression analysis using quartiles of blood lead as the independent variable, the difference in eGFR levels comparing participants in the highest versus the lowest quartiles of blood lead was -3.835 mL/min per 1.73 m Superscript-Two (95% CI: -5.730 to -1.939). In a multiple linear regression analysis using blood cadmium and mercury, as continuous or categorical variables, as independent variables, neither metal was a significant predictor of eGFR. Odds ratios (ORs) and 95% CI values for reduced eGFR calculated for log2-transformed blood metals and quartiles of the three metals showed similar trends after adjustment for covariates. Discussion: In this large, representative sample of South Korean adults, elevated blood lead level was consistently associated with lower eGFR levels and with the prevalence of reduced eGFR even in blood lead levels below 10 {mu}g/dL. In conclusion, elevated blood lead level was associated with lower eGFR in a Korean general population, supporting the role of lead as a risk factor for chronic kidney disease.

  7. Predicting target vessel location on robot-assisted coronary artery bypass graft using CT to ultrasound registration

    SciTech Connect (OSTI)

    Cho, Daniel S.; Linte, Cristian; Chen, Elvis C. S.; Bainbridge, Daniel; Wedlake, Chris; Moore, John; Barron, John; Patel, Rajni; Peters, Terry

    2012-03-15

    Purpose: Although robot-assisted coronary artery bypass grafting (RA-CABG) has gained more acceptance worldwide, its success still depends on the surgeon's experience and expertise, and the conversion rate to full sternotomy is in the order of 15%-25%. One of the reasons for conversion is poor pre-operative planning, which is based solely on pre-operative computed tomography (CT) images. In this paper, the authors propose a technique to estimate the global peri-operative displacement of the heart and to predict the intra-operative target vessel location, validated via both an in vitro and a clinical study. Methods: As the peri-operative heart migration during RA-CABG has never been reported in the literatures, a simple in vitro validation study was conducted using a heart phantom. To mimic the clinical workflow, a pre-operative CT as well as peri-operative ultrasound images at three different stages in the procedure (Stage{sub 0}--following intubation; Stage{sub 1}--following lung deflation; and Stage{sub 2}--following thoracic insufflation) were acquired during the experiment. Following image acquisition, a rigid-body registration using iterative closest point algorithm with the robust estimator was employed to map the pre-operative stage to each of the peri-operative ones, to estimate the heart migration and predict the peri-operative target vessel location. Moreover, a clinical validation of this technique was conducted using offline patient data, where a Monte Carlo simulation was used to overcome the limitations arising due to the invisibility of the target vessel in the peri-operative ultrasound images. Results: For the in vitro study, the computed target registration error (TRE) at Stage{sub 0}, Stage{sub 1}, and Stage{sub 2} was 2.1, 3.3, and 2.6 mm, respectively. According to the offline clinical validation study, the maximum TRE at the left anterior descending (LAD) coronary artery was 4.1 mm at Stage{sub 0}, 5.1 mm at Stage{sub 1}, and 3.4 mm at Stage{sub 2}. Conclusions: The authors proposed a method to measure and validate peri-operative shifts of the heart during RA-CABG. In vitro and clinical validation studies were conducted and yielded a TRE in the order of 5 mm for all cases. As the desired clinical accuracy imposed by this procedure is on the order of one intercostal space (10-15 mm), our technique suits the clinical requirements. The authors therefore believe this technique has the potential to improve the pre-operative planning by updating peri-operative migration patterns of the heart and, consequently, will lead to reduced conversion to conventional open thoracic procedures.

  8. Household ceramic water filter evaluation using three simple low-cost methods : membrane filtration, 3M Petrifilm and hydrogen sulfide bacteria in northern region, Ghana

    E-Print Network [OSTI]

    Mattelet, Claire (Claire Eliane H. Y.)

    2006-01-01

    Drinking water continues to be a major source of waterborne diseases and death in the world because many points of water collection remain unsafe. This thesis reports high level of fecal contamination found in rivers and ...

  9. Emulsions for interfacial filtration.

    SciTech Connect (OSTI)

    Grillet, Anne Mary; Bourdon, Christopher Jay; Souza, Caroline Ann; Welk, Margaret Ellen; Hartenberger, Joel David; Brooks, Carlton, F.

    2006-11-01

    We have investigated a novel emulsion interfacial filter that is applicable for a wide range of materials, from nano-particles to cells and bacteria. This technology uses the interface between the two immiscible phases as the active surface area for adsorption of targeted materials. We showed that emulsion interfaces can effectively collect and trap materials from aqueous solution. We tested two aqueous systems, a bovine serum albumin (BSA) solution and coal bed methane produced water (CBMPW). Using a pendant drop technique to monitor the interfacial tension, we demonstrated that materials in both samples were adsorbed to the liquid-liquid interface, and did not readily desorb. A prototype system was built to test the emulsion interfacial filter concept. For the BSA system, a protein assay showed a progressive decrease in the residual BSA concentration as the sample was processed. Based on the initial prototype operation, we propose an improved system design.

  10. Design and evaluation of the ReKon : an integrated detection and assessment perimeter system.

    SciTech Connect (OSTI)

    Dabling, Jeffrey Glenn; Andersen, Jason Jann; McLaughlin, James O.

    2013-02-01

    Kontek Industries (Kannapolis, NC) and their subsidiary, Stonewater Control Systems (Kannapolis, NC), have entered into a cooperative research and development agreement with Sandia to jointly develop and evaluate an integrated perimeter security system solution, one that couples access delay with detection and assessment. This novel perimeter solution was designed to be configurable for use at facilities ranging from high-security military sites to commercial power plants, to petro/chemical facilities of various kinds. A prototype section of the perimeter has been produced and installed at the Sandia Test and Evaluation Center in Albuquerque, NM. This prototype system integrated fiber optic break sensors, active infrared sensors, fence disturbance sensors, video motion detection, and ground sensors. This report documents the design, testing, and performance evaluation of the developed ReKon system. The ability of the system to properly detect pedestrian or vehicle attempts to bypass, breach, or otherwise defeat the system is characterized, as well as the Nuisance Alarm Rate.

  11. Experiments of a twenty cell PEFC operating under fault conditions with diode by-pass circuit for uninterrupted power delivery

    E-Print Network [OSTI]

    Boyer, Edmond

    behaviour of a 500W, twenty cell Polymer Electrolyte Fuel Cell (PEFC) stack operated under fault condition-up that reproduces the electrical coupling in series of two fuel cells. The results allow the evaluation of the by the capability of the reverse diode to electrically isolate a fuel cell stack under fault. The proposed

  12. Hysterosalpingography using a flat panel unit: Evaluation and optimization of ovarian radiation dose

    SciTech Connect (OSTI)

    Messaris, Gerasimos A. T.; Abatzis, Ilias; Kagadis, George C.; Samartzis, Alexandros P.; Athanasopoulou, Panagiota; Christeas, Nikolaos; Katsanos, Konstantinos; Karnabatidis, Dimitrios; Nikiforidis, George C.

    2012-07-15

    Purpose: The aim of the present study was the evaluation and optimization of radiation dose to the ovaries (D) in hysterosalpingography (HSG). Methods: The study included a phantom study and a clinical one. In the phantom study, we evaluated imaging results for different geometrical setups and irradiation conditions. In the clinical study, 34 women were assigned into three different fluoroscopy modes and D was estimated with direct cervical TLD measurements. Results: In the phantom study, we used a source-to-image-distance (SID) of 110 cm and a field diagonal of 48 cm, and thus decreased air KERMA rate (KR) by 19% and 70%, respectively, for beam filtration: 4 mm Al and 0.9 mm Cu (Low dose). The least radiation exposure was accomplished by using the 3.75 pps fluoroscopy mode in conjunction with beam filtration: Low dose. In the clinical study, D normalized to 50 s of fluoroscopy time with a 3.75 pps fluoroscopy mode reached a value of 0.45 {+-} 0.04 mGy. Observers' evaluation of diagnostic image quality did not significantly differ for the three different modes of acquisition that were compared. Conclusions: Digital spot radiographs could be omitted in modern flat panel systems during HSG. Fluoroscopy image acquisitions in a modern flat panel unit at 3.75 pps and a beam filtration of 4 mm Al and 0.9 mm Cu demonstrate acceptable image quality with an average D equal to 0.45 mGy. This value is lower compared to the studied literature. For these reasons, the proposed method may be recommended for routine HSG examination in order to limit radiation exposure to the ovaries.

  13. Nondestructive evaluation

    SciTech Connect (OSTI)

    Martz, H.E.

    1997-02-01

    Research reported in the thrust area of nondestructive evaluation includes: advanced 3-D imaging technologies; new techniques in laser ultrasonic testing; infrared computed tomography for thermal NDE of materials, structures, sources, and processes; automated defect detection for large laser optics; multistatic micropower impulse radar imaging for nondestructive evaluation; and multi-modal NDE for AVLIS pod shielding components.

  14. Recovery of bypassed oil in the Dundee Formation using horizontal drains. Annual report, April 1994--June 1995

    SciTech Connect (OSTI)

    Wood, J.

    1995-08-01

    Crystal Field in Montcalm County, MI, was selected as a field trial site for this project. Analysis of production data for Crystal Field suggests that an additional 200,000 bbls of oil can be produced using one strategically located horizontal well. Total addition production from the Crystal Field could be as much as 6--8 MMBO. Application of the technology developed in this project to other Dundee fields in the area has the potential to increase Dundee production in Michigan by 35%, adding 80--100 MMBO to ultimate recovery. This project will demonstrate through a field trial that horizontal wells can be substantially increase oil production in older reservoirs that are at or near their economic limit. To maximize the potential of the horizontal well and to ensure that a comprehensive evaluation can be made, extensive reservoir characterization will be performed. In addition to the proposed field trial at Crystal Field, 29 additional Dundee fields in a seven-county area have been selected for study in the reservoir characterization portion of this project.

  15. American Evaluation Association Guiding Principles for Evaluators

    SciTech Connect (OSTI)

    None

    2009-01-18

    Five principles developed by American Evaluation Associ intended to guide professional practice of evaluators & to inform evaluation clients and the general public about principles they can expect to be upheld by professional evaluators.

  16. Hazard evaluation

    SciTech Connect (OSTI)

    Vervalin, C.H.

    1986-12-01

    Recent major disasters in the hydrocarbon processing industry (HPI) have inspired renewed interest in the fine-tuning of hazard evaluation methods. In addition to traditional risk-study methods, the computer promises eventual expert systems to vastly improve the speed of assembling and using loss-prevention information. But currently, the computerization of hazard evaluation finds the HPI taking a back seat to aerospace/nuclear industries. The complexity of creating computer databases and expert systems has not-however-kept some HPI companies from plunging in. Arabian American Oil Co. (Aramco) has used computer-generated information in working with probabilistic risk analysis. Westinghouse has used its risk-analysis experience in the nuclear field to build a computer-based program for HPI clients. An Exxon plant has a huge data bank as the basis for its Hazard Loss Information System.

  17. Evaluating Technologies for Reducing Nutrients in Dairy Effluent The Geotube Dewatering System

    E-Print Network [OSTI]

    Mukhtar, Saqib

    and they were allowed to dewater for 6 months. The large geotextile filtration tubes retain the solids and allow

  18. In-mine evaluation of catalyzed diesel particulate filters at two underground metal mines. Report of investigations/1995

    SciTech Connect (OSTI)

    Watts, W.F.; Cantrell, B.K.; Bickel, K.L.; Olson, K.S.; Rubow, K.L.

    1995-11-01

    The U.S. Bureau of Mines evaluated the performance of a catalyzed diesel particulate filter (CDPF) and a CDPF combined with a diesel oxidation catalyst (DOC) at two metal mines. This paper describes the results from the two field evaluations. The CDPF/DOC was installed on an Elphinstone load-haul-dump (LHD) powered by a Caterpillar 3306 prechambered, turbocharged engine. The CDPF was installed on a Tamrock diesel-hydraulic roof-bolting jumbo, powered by a Deutz F6L912W engine. The underground evaluation at this mine was more difficult because of frequent movement by the roof-bolting jumbo, variation in the daily workload, tremendous fluctuation in ventilation air flow rate and the use of a high sulfur diesel fuel, which promotes the formation of sulfate particles, decreases filtration efficiency, and hastens the deterioration of the catalyst.

  19. RTAP evaluation

    SciTech Connect (OSTI)

    Cupps, K.; Elko, S.; Folta, P.

    1995-01-23

    An in-depth analysis of the RTAP product was undertaken within the CNC associate program to determine the feasibility of utilizing it to replace the current Supervisory Control System that supports the AVLIS program. This document contains the results of that evaluation. With some fundamental redesign the current Supervisory Control system could meet the needs described above. The redesign would require a large amount of software rewriting and would be very time consuming. The higher level functionality (alarming, automation, etc.) would have to wait until its completion. Our current understanding and preliminary testing indicate that using commercial software is the best way to get these new features at the minimum cost to the program. Additional savings will be obtained by moving the maintenance costs of the basic control system from in-house to commercial industry and allowing our developers to concentrate on the unique control areas that require customization. Our current operating system, VMS, has become a hindrance. The UNIX operating system has become the choice for most scientific and engineering systems and we should follow suit. As a result of the commercial system survey referenced above we selected RTAP, a SCADA product developed by Hewlett Packard (HP), as the most favorable product to replace the current supervisory system in AVLIS. It is an extremely open system, with a large, well defined Application Programming Interface (API). This will allow the seamless integration of unique front end devices in the laser area (e.g. Optical Device Controller). RTAP also possesses various functionality that is lacking in our current system: integrated alarming, real-time configurable database, system scalability, and a Sequence Control Language (SQL developed by CPU, an RTAP Channel Partner) that will facilitate the automation necessary to bring the AVLIS process to plant-line operation. It runs on HP-9000, DEC-Alpha, IBM-RS6000 and Sun Workstations.

  20. Water nano-filtration device

    DOE Patents [OSTI]

    Judkins, Roddie R. (Knoxville, TN) [Knoxville, TN

    2009-02-03

    A water filter includes a porous support characterized by a mean porosity in the range of 20 to 50% and a mean pore size of 2 to 5 .mu.m; and a carbon filter membrane disposed thereon which is characterized by a mean particle size of no more than 50 .mu.m and a mean pore size of no more than 7.2 .mu.m.

  1. Water Filtration Using Plant Xylem

    E-Print Network [OSTI]

    Boutilier, Michael Stephen Ha

    Effective point-of-use devices for providing safe drinking water are urgently needed to reduce the global burden of waterborne disease. Here we show that plant xylem from the sapwood of coniferous trees – a readily available, ...

  2. Evaluation Consultant RFP

    Broader source: Energy.gov [DOE]

    Evaluation Consultant RFP, from the Tool Kit Framework: Small Town University Energy Program (STEP).

  3. Synthesis of Sensor Fish Data for Assessment of Fish Passage Conditions at Turbines, Spillways, and Bypass Facilities – Phase 1: The Dalles Dam Spillway Case Study

    SciTech Connect (OSTI)

    Deng, Zhiqun; Serkowski, John A.; Fu, Tao; Carlson, Thomas J.; Richmond, Marshall C.

    2007-12-31

    This report summarizes the characterization of spillway passage conditions at The Dalles Dam in 2006 and the effort to complete a comprehensive database for data sets from The Dalles Dam spillway Sensor Fish and balloon-tagged live fish experiments. Through The Dalles Dam spillway case study, Pacific Northwest National Laboratory (PNNL) researchers evaluated the database as an efficient means for accessing and retrieving system-wide data for the U.S Army Corps of Engineers (USACE).

  4. Assessing Children's Exposure to Ultrafine Particles and Other Air Pollutants in School Buses and at Schools

    E-Print Network [OSTI]

    Zhang, Qunfang

    2012-01-01

    crankcase filtration system (CFS), were evaluated regardingwith both DOC and CFS installed. No unequivocal decrease wascrankcase filtration system ( CFS). DOC was verified by the

  5. Evaluating Transformer Losses 

    E-Print Network [OSTI]

    Grun, R. L. Jr.

    1989-01-01

    This paper outlines how to determine what transformer losses cost and how to evaluate transformer bids to optimize the investment....

  6. Process system evaluation-consolidated letters. Volume 1. Alternatives for the off-gas treatment system for the low-level waste vitrification process

    SciTech Connect (OSTI)

    Peurrung, L.M.; Deforest, T.J; Richards, J.R.

    1996-03-01

    This report provides an evaluation of alternatives for treating off-gas from the low-level waste (LLW) melter. The study used expertise obtained from the commercial nonradioactive off-gas treatment industry. It was assumed that contact maintenance is possible, although the subsequent risk to maintenance personnel was qualitatively considered in selecting equipment. Some adaptations to the alternatives described may be required, depending on the extent of contact maintenance that can be achieved. This evaluation identified key issues for the off-gas system design. To provide background information, technology reviews were assembled for various classifications of off-gas treatment equipment, including off-gas cooling, particulate control, acid gas control, mist elimination, NO{sub x} reduction, and SO{sub 2} removal. An order-of-magnitude cost estimate for one of the off-gas systems considered is provided using both the off-gas characteristics associated with the Joule-heated and combustion-fired melters. The key issues identified and a description of the preferred off-gas system options are provided below. Five candidate treatment systems were evaluated. All of the systems are appropriate for the different melting/feed preparations currently being considered. The lowest technical risk is achieved using option 1, which is similar to designs for high-level waste (HLW) vitrification in the Hanford Waste Vitrification Project (HWVP) and the West Valley. Demonstration Project. Option 1 uses a film cooler, submerged bed scrubber (SBS), and high-efficiency mist eliminator (HEME) prior to NO{sub x} reduction and high-efficiency particulate air (HEPA) filtration. However, several advantages were identified for option 2, which uses high-temperature filtration. Based on the evaluation, option 2 was identified as the preferred alternative. The characteristics of this option are described below.

  7. Organizational Evaluation and Authority 

    E-Print Network [OSTI]

    Scott, Richard W.; Dornbusch, Sanford M.; Busching, Bruce C.; Laing, James D.

    2015-07-21

    condition for internal pressures for change in the authority system--in short, for instability of the system. Both conception and theory are limited in scope to organizations which fulfill these conditions: 1) Organizational sanctions are distributed..., at least in part, on the basis of evaluations made of participants. 2) Evaluators who influence the distribution of organizational sanctions attempt to base their evaluations, at least in part, on the performance of organizational tasks by participants...

  8. Fast Neutron Detection Evaluation

    SciTech Connect (OSTI)

    McKigney, Edward A.; Stange, Sy

    2014-03-17

    These slides present a summary of previous work, conclusions, and anticipated schedule for the conclusion of our fast neutron detection evaluation.

  9. ORISE: Research and Evaluation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    (ORISE) assists government agencies and organizations create effective health communication programs that are built on solid research and evaluation. This information helps...

  10. Evaluating New Hydropower Resources

    Broader source: Energy.gov (indexed) [DOE]

    evaluation of opportunities for new hydropower development must include considerations of ecological and social sustainability. Although the NSD assessment did not make...

  11. MSA Evaluation Archive

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Education Teachers (K-12) Archive MSA Evaluation Archive The Laboratory's Math and Science Academy provides quality STEM education professional development for teachers in...

  12. TEPP - Exercise Evaluation Forms | Department of Energy

    Office of Environmental Management (EM)

    TEPP - Exercise Evaluation Forms TEPP - Exercise Evaluation Forms Hazardous Materials Exercise Evaluation Forms Exercise Evaluation Forms More Documents & Publications Transuranic...

  13. EVALUATION OF SUPPLEMENTAL PRE-TREATMENT DEVELOPMENT REQUIREMENTS TO MEET TRL 6 ROTARY MICROFILTRATION

    SciTech Connect (OSTI)

    HUBER HJ

    2011-10-03

    In spring 2011, the Technology Maturation Plan (TMP) for the Supplemental Treatment Project (RPP-PLAN-49827, Rev. 0), Technology Maturation Plan for the Treatment Project (T4S01) was developed. This plan contains all identified actions required to reach technical maturity for a field-deployable waste feed pretreatment system. The supplemental pretreatment system has a filtration and a Cs-removal component. Subsequent to issuance of the TMP, rotary microfiltration (RMF) has been identified as the prime filtration technology for this application. The prime Cs-removal technology is small column ion exchange (ScIX) using spherical resorcinol formaldehyde (sRF) as the exchange resin. During fiscal year 2011 (FY2011) some of the tasks identified in the TMP have been completed. As of September 2011, the conceptual design package has been submitted to DOE as part of the critical decision (CD-1) process. This document describes the remaining tasks identified in the TMP to reach technical maturity and evaluates the validity of the proposed tests to fill the gaps as previously identified in the TMP. The potential vulnerabilities are presented and the completed list of criteria for the DOE guide DOE G 413.3-4 different technology readiness levels are added in an attachment. This evaluation has been conducted from a technology development perspective - all programmatic and manufacturing aspects were excluded from this exercise. Compliance with the DOE G 413.3-4 programmatic and manufacturing requirements will be addressed directly by the Treatment Project during the course of engineering design. The results of this evaluation show that completion of the proposed development tasks in the TMP are sufficient to reach TRL 6 from a technological point of view. The tasks involve actual waste tests using the current baseline configuration (2nd generation disks, 40 psi differential pressure, 30 C feed temperature) and three different simulants - the PEP, an AP-Farm and an S-saltcake. Based on FY2011 dollars used in the TMP, these tests will have ROM costs of $950K and require up to 10 months to complete. Completion of the simulant testing will satisfy the TRL 5 and TRL 6 criteria that are related to system testing with materials that represent the full range of properties in a relevant environment.

  14. Evaluation of improved polyamides

    SciTech Connect (OSTI)

    Hishaw, R.J.

    1980-06-01

    Three polyamides, nylon 11, nylon 12, and a transparent nylon, were evaluated by physical testing, characterization and analytical methods, and injection molding. None of the materials proved to be clearly superior to the others. Results of the evaluation will be used to determine applications for the materials in future production programs.

  15. Evaluation of masa texture 

    E-Print Network [OSTI]

    Bosiger, Irene

    1997-01-01

    acceptability for measuring masa stickiness. None of the other four TPA measurements were practical measures of masa texture. The adhesiveness force was significantly correlated with subjective evaluations of masa texture but it had a relatively high coefficient...

  16. Evaluated Nuclear Data

    SciTech Connect (OSTI)

    Oblozinsky, P.; Oblozinsky,P.; Herman,M.; Mughabghab,S.F.

    2010-10-01

    This chapter describes the current status of evaluated nuclear data for nuclear technology applications. We start with evaluation procedures for neutron-induced reactions focusing on incident energies from the thermal energy up to 20 MeV, though higher energies are also mentioned. This is followed by examining the status of evaluated neutron data for actinides that play dominant role in most of the applications, followed by coolants/moderators, structural materials and fission products. We then discuss neutron covariance data that characterize uncertainties and correlations. We explain how modern nuclear evaluated data libraries are validated against an extensive set of integral benchmark experiments. Afterwards, we briefly examine other data of importance for nuclear technology, including fission yields, thermal neutron scattering and decay data. A description of three major evaluated nuclear data libraries is provided, including the latest version of the US library ENDF/B-VII.0, European JEFF-3.1 and Japanese JENDL-3.3. A brief introduction is made to current web retrieval systems that allow easy access to a vast amount of up-to-date evaluated nuclear data for nuclear technology applications.

  17. MODULAR CONSTRUCTION SYSTEM EVALUATION

    SciTech Connect (OSTI)

    S. Gillespie

    2002-08-08

    The purpose of this study is to respond to U.S. Department of Energy (DOE) Technical Direction Letter (TDL) 02-003 (Waisley 2001), which directs Bechtel SAIC Company, LLC (BSC) to complete a design study to recommend repository design options to support receipt and/or emplacement of any or all of the following: commercial spent nuclear fuel (CSNF), high-level radioactive waste (HLW), DOE-managed spent nuclear fuel (DSNF) (including naval spent nuclear fuel [SNF]), and immobilized plutonium (if available), as soon as practicable, but no later than 2010. From the possible design options, a recommended approach will be determined for further evaluation to support the preliminary design of the repository. This study integrates the results of the repository Design Evolution Study (Rowe 2002) with supporting studies concerning national transportation options (BSC 2002b) and Nevada transportation options (Gehner 2002). The repository Design Evolution Study documents the processes used to reevaluate the design, construction, operation, and cost of the repository in response to TDL 02-003 (Waisley 2001), and to determine possible repository conceptual design options. The transportation studies evaluate the national and Nevada transportation options that support the repository conceptual design options. An evaluation methodology was established, based on Program-level requirements developed for the study in reference BSC 2001a, to allow the repository and system design options to be evaluated on a consistent basis. The transportation options and the design components were integrated into system design implementation options, which were evaluated using receipt and emplacement scenarios. The scenarios tested the ability of the design concept to adapt to changes in funding, waste receipt rate, and Nevada rail transportation availability. The results of the evaluation (in terms of system throughput, cost, and schedule) were then compared to the Program-level requirements, and recommendations for design alternatives, requirements changes, or further evaluation were developed.

  18. A CoA Co--Evaluation Framework forEvaluation Framework for Improving Segmentation EvaluationImproving Segmentation Evaluation

    E-Print Network [OSTI]

    Fritts, Jason

    [ Taxonomy ] Segmentation Evaluation #12;Relative Evaluation (a.k.a. Empirical Discrepancy Measures) Most;Stand-alone Evaluation (a.k.a. empirical goodness measures) No reference image is needed Examine how

  19. SECTION M_Evaluation Factors

    National Nuclear Security Administration (NNSA)

    award at the lowest evaluated cost. However, the Government will not make an award at a price premium it considers disproportionate to the benefits associated with the evaluated...

  20. EVALUATION OF ALTERNATIVE FILTER MEDIA FOR THE ROTARY MICROFILTER

    SciTech Connect (OSTI)

    Poirier, M.; Herman, D.; Bhave, R.

    2011-09-13

    SRS is currently developing and testing several processes to treat high level radioactive liquid waste. These processes include the Integrated Salt Disposition Process (ISDP), the Salt Waste Processing Facility (SWPF), and the Small Column Ion Exchange Process (SCIX). Each of these processes has a solid-liquid separation process that limits its throughput. SRNL researchers identified and tested the rotary microfilter as a technology to increase solid-liquid separation throughput. The testing showed significant improvement in filter flux with the rotary microfilter over the baseline crossflow filter (i.e., 2.5-6.5X during scoping tests, as much as 10X in actual waste tests, and approximately 3X in pilot-scale tests). SRNL received funding from DOE EM-21, and subsequently DOE EM-31 to develop the rotary microfilter for high level radioactive service. The work has included upgrading the rotary microfilter for radioactive service, testing with simulated SRS waste streams, and testing it with simulated Hanford waste streams. While the filtration rate is better than that obtained during testing of crossflow filters, the authors believe the rotary microfilter throughput can be improved by using a better filter membrane. The rotary microfilter membrane is made of stainless steel (Pall PMM050). Previous testing, funded by DOE EM-21, showed that asymmetric filters composed of a ceramic membrane on top of a stainless steel support produced higher filter flux than 100% stainless steel symmetric filters in crossflow filter tests. In that testing, the Pall Accusep and Graver filters produced 13-21% larger filter flux than the baseline 0.1 {micro}m Mott filter. While the improvement in flux is not as dramatic as the improvement of the rotary filter over a crossflow filter, a 13-21% increase could reduce the lifetime of a 30 year process by 4-6 years, with significant cost savings. Subsequent rotary filter testing showed the Pall PMM050 stainless steel filter membrane produced higher flux than the Mott filter media in bench-scale and pilot-scale testing. The Accusep and Graver filter media were not evaluated in that testing, because they are not available as flat sheets. The Accusep filter was developed at ORNL and licensed to Pall Corporation. This filter has a stainless steel support structure with a zirconium oxide ceramic membrane. The pore size is 0.1 {micro}m absolute. The Graver filter has a stainless steel support structure with a titanium dioxide ceramic membrane. The pore size is 0.07 {micro}m absolute. SRNL and ORNL are working together to develop filter media similar to the Accusep and Graver media, and to test them in a bench-scale filtration apparatus to attempt to improve the throughput of the rotary microfilter. This report describes the effort.

  1. Teaching Evaluation Reports Available to Faculty Center and Operational Teaching Evaluations Report Users View Evaluation

    E-Print Network [OSTI]

    Cafarella, Michael J.

    Teaching Evaluation Reports Available to Faculty Center and Operational Teaching Evaluations Report Users View Evaluation Questions View Instructor Report View Instructor Report with Comments View, subjects and catalog numbers for the reports needed. 2008 Fall 1 Yes Yes email ro

  2. Evaluation of user interfaces: EVADIS 11-a comprehensive evaluation approach

    E-Print Network [OSTI]

    Reiterer, Harald

    , they need appropriate evaluation methods that provide feedback on the ergonomic quality of their work. lEvaluation of user interfaces: EVADIS 11-a comprehensive evaluation approach HARALD REITERERt.2 Vienna, Austria Keywords: Usability; system evaluation; user interface. AbstrKt. As a result of tbe

  3. ISSAT 2012 KCoverage Reliability Evaluation K-COVERAGE RELIABILITY EVALUATION

    E-Print Network [OSTI]

    Xing, Liudong

    #12;7/20/2012 ISSAT 2012 KCoverage Reliability Evaluation forWSNs 2 Introduction Wireless sensor;7/20/2012 ISSAT 2012 KCoverage Reliability Evaluation forWSNs 7 Model 13 Consider a set of sensor nodes (SN7/20/2012 ISSAT 2012 KCoverage Reliability Evaluation forWSNs 1 K-COVERAGE RELIABILITY EVALUATION

  4. EVALUATION OF FACULTY AND LIBRARIANS A. Varieties of Evaluation

    E-Print Network [OSTI]

    Massachusetts at Lowell, University of

    unit members are subject to three types of evaluation: (1) an annual evaluation of non-tenured faculty Chair/Library Division Head7 annual and merit evaluations, alternative supplemental evaluations by department/library personnel committees, positive personnel reviews by the department/library personnel

  5. Rainwater Harvesting Program Evaluation

    E-Print Network [OSTI]

    and collect rainwater and divert to landscape areas that need extra water Install a rainwater harvesting system Install a rainwater harvesting system to water landscape Install a rainwater harvesting systemRainwater Harvesting Program Evaluation Your views on the quality and effectiveness of Extension

  6. Fuel sorting evaluation

    SciTech Connect (OSTI)

    Pajunen, A.L.

    1996-03-12

    An evaluation of functions and requirements associated with sorting fuel from the Hanford K Basins is presented to support design issue resolution decisions for achieving interim fuel storage. Potential requirements are recommended for implementation in design activities. The recommendations are provided as input to a management decision process where decisions are finalized and the sorting issue is closed.

  7. Economic Evaluation of Radiopharmaceutical

    E-Print Network [OSTI]

    to industry needs and appointed a subcommittee of Manufacturers of Radioactive Reference Standards Radiation Division Physics Laboratory National Institute of Standards and Technology #12;Economic Evaluation of Standards and Technology by Albert N. Link Professor of Economics University of North Carolina at Greensboro

  8. Automation of Feynman Diagram Evaluation

    E-Print Network [OSTI]

    M. Tentyukov; J. Fleischer

    1998-02-04

    A C-program DIANA (DIagram ANAlyser) for the automation of Feynman diagram evaluations is presented.

  9. FILTRATION ASSOCIATED TO TORSION SEMI-STABLE ...

    E-Print Network [OSTI]

    2011-12-15

    by Al, IOL by Il, A. ? by A. ?. OL. , E by L respectively and replacing ?, ?. ? accordingly, we can assume that A = OE, E contains the Galois closure of K and A.

  10. Demand Controlled Filtration in an Industrial Cleanroom

    E-Print Network [OSTI]

    Faulkner, David; DiBartolomeo, Dennis; Wang, Duo

    2007-01-01

    facility. G-5 (Group-5) is an ISO Class 4 cleanroom. G-2 (Group-2) is an ISO Class 7 cleanroom. G- 1 (Group-1) and G-Group-3) is an ISO Class 6 cleanroom and G-6 (Group-6) is an

  11. Thermophilic Biotrickling Filtration of Ethanol Vapors

    E-Print Network [OSTI]

    .g., from the tobacco, (4) the pulp and paper, (5) and food industry (6). One option is cooling these gases in the mesophilic range (15-40 °C) (4). However, many industrial waste gases have temperatures beyond this range, e

  12. Molybdenum Coatings with Filtration of Plasma Flow

    SciTech Connect (OSTI)

    Gasilin, V. V.; Nezovibat'ko, Y. N.; Shvets, O. M.; Taran, V. S.; Tereshin, V. I.; Timoshenko, A. I.; Zavaleev, V. A.

    2008-03-19

    Deposition of molybdenum coatings in arc discharge with assistance of HF one is analyzed in this paper. To avoid substrate heating to high temperature and micro-arc formation during cleaning process, the surface cleaning was carried out with HF plasma only. For reduction of droplet fraction in plasma the 'freestanding' filter was utilized. As a filter a solenoid was used, which generated a curvilinear (with the angle of 90 deg.) transportation magnetic field. The effective crosssectional area of the plasma flow at which was observed the uniform distribution of the thickness of the applied coating, was equal to 113 sm{sup 2}. The coating on the base of arc discharge, filter and HF-biasing of substrate were deposited on different substrates, including glass and stainless steel.The optical (refractive index) properties of molybdenum films are presented. The reflective characteristics of the obtained molybdenum films in the range of wavelengths from 200 to 700 nm were measured.Molybdenum films were also investigated under the effect of the plasma emission, using an ECR discharge in a simple double-mirror magnetic trap. The time varying negative potential was supplied to sample holder what provided a wide energy distribution of ions bombarded the sample surface in range 30...1500V.

  13. Methods for microbial filtration of fluids

    DOE Patents [OSTI]

    Carman, Margaret L. (San Ramon, CA); Jackson, Kenneth J. (San Leandro, CA); Knapp, Richard B. (Danville, CA); Knezovich, John P. (Stockton, CA); Shah, Nilesh N. (Livermore, CA); Taylor, Robert T. (Livermore, CA)

    1996-01-01

    Novel methods for purifying contaminated subsurface groundwater are disclosed. The method is involves contacting the contaminated subsurface groundwater with methanotrophic or heterotrophic microorganisms which produce contaminant-degrading enzymes. The microorganisms are derived from surface cultures and are injected into the ground so as to act as a biofilter. The contaminants which may be treated include organic or metallic materials and radionuclides.

  14. Methods for microbial filtration of fluids

    DOE Patents [OSTI]

    Carman, M.L.; Jackson, K.J.; Knapp, R.B.; Knezovich, J.P.; Shah, N.N.; Taylor, R.T.

    1996-01-30

    Novel methods for purifying contaminated subsurface groundwater are disclosed. The method is involves contacting the contaminated subsurface groundwater with methanotrophic or heterotrophic microorganisms which produce contaminant-degrading enzymes. The microorganisms are derived from surface cultures and are injected into the ground so as to act as a biofilter. The contaminants which may be treated include organic or metallic materials and radionuclides. 8 figs.

  15. Backward Stochastic Differential Equations with Enlarged Filtration

    E-Print Network [OSTI]

    Maume-Deschamps, Véronique

    is trivial). His consumption c is a nonnegative Y-adapted process verifying T 0 csds parts of ith asset. His wealth at time t is Xt = k i=0 i tSi t. We consider the standard self-financing hypothesis: dXt = k i=0 i tdSi t - ctdt (2) It means that the consumption is only financed with the profits

  16. CONDITIONING AND INITIAL ENLARGEMENT OF FILTRATION ON ...

    E-Print Network [OSTI]

    2004-09-03

    AMS 2000 subject classifications. 58G32, 60J60, 60H10. ...... 2301 can be defined in the same way as in Lemma 2. Precisely, we have ? ? t = ? ln ?. (t,Xt ).

  17. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU *MTNSBenBen0

  18. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU

  19. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF

  20. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF2 ARM

  1. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF2 ARM2

  2. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF2 ARM27

  3. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF2 ARM27

  4. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF2

  5. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF21 ACRF

  6. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF21

  7. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF212

  8. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF2123

  9. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF21234

  10. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF212345

  11. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9 ACRF2123456

  12. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU9

  13. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98 ACRF

  14. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98 ACRF9 ACRF

  15. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98 ACRF9

  16. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98 ACRF97

  17. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98 ACRF973

  18. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98 ACRF9738

  19. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98 ACRF97381

  20. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98 ACRF973811

  1. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU98

  2. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU987 Time

  3. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU987 Time6.1

  4. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU987 Time6.14

  5. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L O OLaura| National2.11DESERT * LOW HILLS * PLATEAU987 Time6.14

  6. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC Systems60-0005

  7. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC

  8. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight

  9. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight2 ARM

  10. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight2 ARM4

  11. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight2 ARM46

  12. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight2 ARM462

  13. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight2

  14. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight22 Cloud

  15. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight22

  16. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight223

  17. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight2234

  18. Bench-Scale Cross Flow Filtration of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room News PublicationsAudits & Inspections AuditsBarbara2.0.1Ben Allen HPC1 ISDAC Flight22345

  19. Side Stream Filtration for Cooling Towers

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo.Hydrogen4 » Searchwith Ultra-DeepwaterShutting the Door onSide

  20. Sandusky Water Filtration | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EIS Report UrlNM-bRenewableSMUD WindI Jump to:Miguel,Wastewater

  1. Planning Report 01-3 Economic Evaluation

    E-Print Network [OSTI]

    methods A.3. The counterfactual evaluation method A.4. The spillover evaluation method A.5. Methodology

  2. Evaluating Steam Trap Performance 

    E-Print Network [OSTI]

    Fuller, N. Y.

    1986-01-01

    stream_source_info ESL-IE-86-06-126.pdf.txt stream_content_type text/plain stream_size 11555 Content-Encoding ISO-8859-1 stream_name ESL-IE-86-06-126.pdf.txt Content-Type text/plain; charset=ISO-8859-1 EVALUATING STEAM... TRAP PERFORMANCE Noel Y Fuller, P.E. Holston Defense Corporation Kingsport, Tennessee ABSTRACT Laboratory tests were conducted on several types of steam traps at Holston Defense Corporation in Kingsport, Tennessee. Data from these tests...

  3. Exposure Evaluation Process

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesof Energy8)highlightsNew PhaseExposure Evaluation Process

  4. Large Scale Speech Synthesis Evaluation 

    E-Print Network [OSTI]

    Podsiadlo, Monika

    2007-11-11

    In speech synthesis evaluation, it is critical that we know what exactly affects the results of the evaluation rather than employing as vague notions as, say, "good quality speech". As so far we have only been able to ...

  5. LIQUEFACTION EVALUATIONS AT DOE SITES

    Broader source: Energy.gov [DOE]

    Liquefaction Evaluations at DOE Sites M. Lewis, M. McHood, R. Williams, B. Gutierrez October 25, 2011

  6. Exercise Controller and Evaluator Manual

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    1997-08-21

    This volume details the roles of controllers and evaluators in emergency exercises. Canceled by DOE G 151.1-3.

  7. International Energy Program Evaluation Conference

    Broader source: Energy.gov [DOE]

    The International Energy Program Evaluation Conference (IEPEC) will be held in Long Beach, California, on Aug. 11-13, 2015.

  8. Liquefaction Evaluations at DOE Sites

    Office of Environmental Management (EM)

    Background Purpose and Objective Liquefaction Methods Site Evaluations Aging Conclusions 2 Background 3 Liquefaction at DOE Sites Background Liquefaction...

  9. Treatment Deployment Evaluation Tool

    SciTech Connect (OSTI)

    Rynearson, Michael Ardel; Plum, Martin Michael

    1999-08-01

    The U.S. Department of Energy (DOE) is responsible for the final disposition of legacy spent nuclear fuel (SNF). As a response, DOE's National Spent Nuclear Fuel Program (NSNFP) has been given the responsibility for the disposition of DOE -owned SNF. Many treatment technologies have been identified to treat some forms of SNF so that the resulting treated product is acceptable by the disposition site. One of these promising treatment processes is the electrometallurgical treatment (EMT) currently in development; a second is an Acid Wash Decladding process. The NSNFP has been tasked with identifying possible strategies for the deployment of these treatment processes in the event that the treatment path is deemed necessary. To support the siting studies of these strategies, economic evaluations are being performed to identify the least-cost deployment path. This model (tool) was developed to consider the full scope of costs, technical feasibility, process material disposition, and schedule attributes over the life of each deployment alternative. Using standard personal computer (PC) software, the model was developed as a comprehensive technology economic assessment tool using a Life-Cycle Cost (LCC) analysis methodology. Model development was planned as a systematic, iterative process of identifying and bounding the required activities to dispose of SNF. To support the evaluation process, activities are decomposed into lower level, easier to estimate activities. Sensitivity studies can then be performed on these activities, defining cost issues and testing results against the originally stated problem.

  10. Evaluation of a Vehicle Visualization

    E-Print Network [OSTI]

    Kameda, Yoshinari

    , "Ergonomic Design and Evaluation of Augmented Reality Based Cautionary Warnings for Driving Assistance *1 *2 *2 *2 *1 *2 CG Evaluation of a Vehicle Visualization In this paper, we report an evaluation of the visualization method that displays a hidden vehicle

  11. Standardized radiological dose evaluations

    SciTech Connect (OSTI)

    Peterson, V.L.; Stahlnecker, E.

    1996-05-01

    Following the end of the Cold War, the mission of Rocky Flats Environmental Technology Site changed from production of nuclear weapons to cleanup. Authorization baseis documents for the facilities, primarily the Final Safety Analysis Reports, are being replaced with new ones in which accident scenarios are sorted into coarse bins of consequence and frequency, similar to the approach of DOE-STD-3011-94. Because this binning does not require high precision, a standardized approach for radiological dose evaluations is taken for all the facilities at the site. This is done through a standard calculation ``template`` for use by all safety analysts preparing the new documents. This report describes this template and its use.

  12. Evaluated teletherapy source library

    DOE Patents [OSTI]

    Cox, Lawrence J. (Los Alamos, NM); Schach Von Wittenau, Alexis E. (Livermore, CA)

    2000-01-01

    The Evaluated Teletherapy Source Library (ETSL) is a system of hardware and software that provides for maintenance of a library of useful phase space descriptions (PSDs) of teletherapy sources used in radiation therapy for cancer treatment. The PSDs are designed to be used by PEREGRINE, the all-particle Monte Carlo dose calculation system. ETSL also stores other relevant information such as monitor unit factors (MUFs) for use with the PSDs, results of PEREGRINE calculations using the PSDs, clinical calibration measurements, and geometry descriptions sufficient for calculational purposes. Not all of this information is directly needed by PEREGRINE. It also is capable of acting as a repository for the Monte Carlo simulation history files from which the generic PSDs are derived.

  13. High Impact Technology Hub- Resources for Evaluators- Site Evaluation Checklists

    Broader source: Energy.gov [DOE]

    The HIT Catalyst conducts technology demonstrations in three main phases govern demonstrations: Site Evaluation, Selection and Project Kick-Off, Measurement and Verification Scoping and Plan...

  14. Independent Oversight Evaluation, Pantex Plant - November 2000...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Evaluation, Pantex Plant - November 2000 Independent Oversight Evaluation, Pantex Plant - November 2000 November 2000 Evaluation of the Pantex Plant Emergency Response Exercise...

  15. What happened after the evaluation?

    SciTech Connect (OSTI)

    Bennett, C L

    1999-03-12

    An ergonomics program including a ergonomic computer workstation evaluations at a research and development facility was assessed three years after formal implementation. As part of the assessment, 53 employees who had been subjects of computer workstation evaluations were interviewed. The documented reports (ergonomic evaluation forms) of the ergonomic evaluations were used in the process of selecting the interview subjects. The evaluation forms also provided information about the aspects of the computer workstation that were discussed and recommended as part of the evaluation, although the amount of detail and completeness of the forms varied. Although the results were mixed and reflective of the multivariate psychosocial factors affecting employees working in a large organization, the findings led to recommendations for improvements of the program.

  16. EVALUATION OF MERCURY EMISSIONS FROM COAL-FIRED FACILITIES WITH SCR AND FGD SYSTEMS

    SciTech Connect (OSTI)

    J.A. Withum

    2006-03-07

    CONSOL Energy Inc., Research & Development (CONSOL), with support from the U.S. Department of Energy, National Energy Technology Laboratory (DOE) and the Electric Power Research Institute (EPRI), evaluated the effects of selective catalytic reduction (SCR) on mercury (Hg) capture in coal-fired plants equipped with an electrostatic precipitator (ESP)-wet flue gas desulfurization (FGD) combination or a spray dyer absorber-fabric filter (SDA-FF) combination. In this program CONSOL determined mercury speciation and removal at 10 bituminous coal-fired facilities; at four of these facilities, additional tests were performed on units without SCR, or with the existing SCR bypassed. This project final report summarizes the results and discusses the findings of the body of work as a whole. Eleven Topical Reports were issued (prior to this report) that describe in great detail the sampling results at each of the ten power plants individually. The results showed that the SCR-FGD combination removed a substantial fraction of mercury from flue gas. The coal-to-stack mercury removals ranged from 65% to 97% for the units with SCR and from 53% to 87% for the units without SCR. There was no indication that any type of FGD system was more effective at mercury removal than others. The coal-to-stack mercury removal and the removal in the wet scrubber were both negatively correlated with the elemental mercury content of the flue gas and positively correlated with the scrubber liquid chloride concentration. The coal chlorine content was not a statistically significant factor in either case. Mercury removal in the ESP was positively correlated with the fly ash carbon content and negatively correlated with the flue gas temperature. At most of the units, a substantial fraction (>35%) of the flue gas mercury was in the elemental form at the boiler economizer outlet. After passing through the SCR-air heater combination very little of the total mercury (<10%) remained in the elemental form in the flue gas; this was true for all SCR catalyst types and sources. Although chlorine has been suggested as a factor affecting the mercury speciation in flue gas, coal chlorine was not a statistically significant factor affecting mercury speciation at the economizer exit or at the air heater exit. The only statistically significant factors were the coal ash CaO content and the fly ash carbon content; the fraction of mercury in the elemental form at the economizer exit was positively correlated with both factors. In a direct comparison at four SCR-equipped units vs. similar units at the same sites without SCR (or with the SCR bypassed), the elemental mercury fractions (measured at the ESP outlet) were lower, and the coal-to-stack mercury removals were higher, when the SCR was present and operating. The average coal-to-stack mercury removal at the four units without an operating SCR was 72%, whereas the average removal at the same sites with operating SCRs was 88%. The unit mercury mass balance (a gauge of the overall quality of the tests) at all of the units ranged from 81% to 113%, which were within our QA/QC criterion of 80-120%.

  17. Hawaii-Okinawa Building Evaluations

    SciTech Connect (OSTI)

    Metzger, I.; Salasovich, J.

    2013-05-01

    NREL conducted energy evaluations at the Itoman City Hall building in Itoman, Okinawa Prefecture, Japan, and the Hawaii State Capitol building in Honolulu, Hawaii. This report summarizes the findings from the evaluations, including the best practices identified at each site and opportunities for improving energy efficiency and renewable energy. The findings from this evaluation are intended to inform energy efficient building design, energy efficiency technology, and management protocols for buildings in subtropical climates.

  18. ORISE: Process and Program Evaluation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Process and Program Evaluation As an integral part of producing effective health and safety programs, the Oak Ridge Institute for Science and Education (ORISE) conducts...

  19. FACULTY EVALUATION 5.1 FACULTY EVALUATION PROCEDURE SUMMARY

    E-Print Network [OSTI]

    : Section 7, Faculty Handbook ­ Performance and Evaluation Procedure: As defined in the Faculty Handbook, all library faculty, and all research faculty holding a named rank. Annual evaluation of the faculty goals. All faculty members defined above must complete a Faculty Data Report Narrative (FDRN) annually

  20. Evaluation of HEPA filter service life

    SciTech Connect (OSTI)

    Fretthold, J.K.; Stithem, A.R.

    1997-07-14

    Rocky Flats Environmental Technology Site (RFETS), has approximately 10,000 High Efficiency Particulate Air (HEPA) Filters installed in a variety of filter plenums. These ventilation/filtration plenum systems are used to control the release of airborne particulate contaminates to the environment during normal operations and potential accidents. This report summarizes the results of destructive and non-destructive tests on HEPA filters obtained from a wide variety of ages and service conditions. These tests were performed to determine an acceptable service life criteria for HEPA filters used at Rocky Flats Environmental Technology Site (RFETS). A total of 140 filters of various ages (1972 to 1996) and service history (new, aged unused, used) were tested. For the purpose of this report, filter age from manufacture date/initial test date to the current sample date was used, as opposed to the actual time a filter was installed in an operating system.

  1. American Institute of Aeronautics and Astronautics Experimental Evaluation of Methane Fuel Reformation Feasibility

    E-Print Network [OSTI]

    Texas at Arlington, University of

    are presented. The goal is to obtain the high energy density of gaseous hydrogen fuel for combustion while still in the combustion chamber kinetic energy bypass sys- tem. Thus, the high energy density of hydrogen would, the extremely low density of hydrogen results in excessive tankage, thereby causing adverse effects on ve- hicle

  2. Evaluating the technical performance and social acceptability of keg-shaped ceramic water filters in Northern Ghana

    E-Print Network [OSTI]

    Cummings, Joanna (Joanna Katherine)

    2011-01-01

    The Kosim Water Keg (KWK) is a new ceramic water filter designed have faster filtration rates and integrate better with consumers' water habits. The design seals together two ceramic pot filters (CPFs) to form a keg shape. ...

  3. Data Evaluation, Completion and Manipulation

    E-Print Network [OSTI]

    Data Evaluation, Completion and Manipulation Prepared for the U.S. Department of Energy Office on Data Evaluation, Completion and Manipulation By GE Global Research Niskayuna, New York And University to begin developing the transient performance and production cost models based on the data received. Task 7

  4. Status Conditions of Self Evaluation 

    E-Print Network [OSTI]

    Berger, Joseph; Zeldtich, Morris Jr; Anderson, Bo; Cohen, Bernard P

    2015-07-28

    /plain; charset=UTF-8 Status Conditions of Self-Evaluation by Joseph Berger Morris Zelditch, Jr. Bo Anderson Bernard Cohen This paper was supported in part by NSF grant #G23990, for the study of authority and evaluations, and in part by NSF grant #GS...

  5. Climate Models and Their Evaluation

    E-Print Network [OSTI]

    Box, Jason E.

    8 Climate Models and Their Evaluation Coordinating Lead Authors: David A. Randall (USA), Richard A and Their Evaluation. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M

  6. PARTIAL EVALUATION USING DEPENDENCE GRAPHS

    E-Print Network [OSTI]

    Reps, Thomas W.

    guarantee of termination, while optimizing the common case. A partial evaluator may fail to terminate, our algorithms provide a termination guarantee for partial eval­ uation in the absence of ``static termination guarantee for partial evaluation of imperative programs. In order to handle a real imperative

  7. Biosand filtration of high turbidity water : modified filter design and safe filtrate storage

    E-Print Network [OSTI]

    Collin, Clair

    2009-01-01

    Unsafe drinking water is a major cause of water-related diseases that predominantly affect people living in developing countries. The most prevalent water-related disease is diarrhea, estimated to kill 1.8 million children ...

  8. Petrophysical evaluation of subterranean formations

    DOE Patents [OSTI]

    Klein, James D; Schoderbek, David A; Mailloux, Jason M

    2013-05-28

    Methods and systems are provided for evaluating petrophysical properties of subterranean formations and comprehensively evaluating hydrate presence through a combination of computer-implemented log modeling and analysis. Certain embodiments include the steps of running a number of logging tools in a wellbore to obtain a variety of wellbore data and logs, and evaluating and modeling the log data to ascertain various petrophysical properties. Examples of suitable logging techniques that may be used in combination with the present invention include, but are not limited to, sonic logs, electrical resistivity logs, gamma ray logs, neutron porosity logs, density logs, NRM logs, or any combination or subset thereof.

  9. Petroleum Engineering 321 Formation Evaluation

    E-Print Network [OSTI]

    measurements to estimate hydrocarbon reserves and petrophysical properties of the formation such as porosity Description: Introduction to well-log interpretation for formation evaluation of hydrocarbon, net pay thickness, water/hydrocarbon saturation, permeability, and saturation-dependent capillary

  10. Nuclear Explosive Safety Evaluation Processes

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2009-04-14

    This Manual provides supplemental details to support the nuclear explosive safety evaluation requirement of DOE O 452.2D, Nuclear Explosive Safety. Does not cancel other directives. Admin Chg 1, 7-10-13.

  11. Evaluation of extractive voicemail summarization. 

    E-Print Network [OSTI]

    Koumpis, Konstantinos; Renals, Steve

    2003-01-01

    This paper is about the evaluation of a system that generates short text summaries of voicemail messages, suitable for transmission as text messages. Our approach to summarization is based on a speech-recognized transcript ...

  12. Evaluating Packaged Steam Generator Designs 

    E-Print Network [OSTI]

    Ganapathy, V.

    1997-01-01

    carefully. First cost alone should not be the basis for their selection. This paper outlines some of the important design aspects of packaged boilers and how they affect boiler performance and operating costs. Suggestions are also made for proper evaluation...

  13. Evaluation Criteria | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: AlternativeCommunication3-EDepartmentExercise Program -| DepartmentBetweenEvaluatingEvaluation

  14. Advanced Vehicle Testing and Evaluation

    SciTech Connect (OSTI)

    Garetson, Thomas

    2013-03-31

    The objective of the United States (U.S.) Department of Energy?s (DOEs) Advanced Vehicle Testing and Evaluation (AVTE) project was to provide test and evaluation services for advanced technology vehicles, to establish a performance baseline, to determine vehicle reliability, and to evaluate vehicle operating costs in fleet operations. Vehicles tested include light and medium-duty vehicles in conventional, hybrid, and all-electric configurations using conventional and alternative fuels, including hydrogen in internal combustion engines. Vehicles were tested on closed tracks and chassis dynamometers, as well as operated on public roads, in fleet operations, and over prescribed routes. All testing was controlled by procedures developed specifically to support such testing. Testing and evaluations were conducted in the following phases: ? Development of test procedures, which established testing procedures; ? Baseline performance testing, which established a performance baseline; ? Accelerated reliability testing, which determined vehicle reliability; ? Fleet testing, used to evaluate vehicle economics in fleet operation, and ? End of test performance evaluation. Test results are reported by two means and posted by Idaho National Laboratory (INL) to their website: quarterly progress reports, used to document work in progress; and final test reports. This final report documents work conducted for the entirety of the contract by the Clarity Group, Inc., doing business as ECOtality North America (ECOtality). The contract was performed from 1 October 2005 through 31 March 2013. There were 113 light-duty on-road (95), off-road (3) and low speed (15) vehicles tested.

  15. SU-E-I-57: Evaluation and Optimization of Effective-Dose Using Different Beam-Hardening Filters in Clinical Pediatric Shunt CT Protocol

    SciTech Connect (OSTI)

    Gill, K; Aldoohan, S; Collier, J

    2014-06-01

    Purpose: Study image optimization and radiation dose reduction in pediatric shunt CT scanning protocol through the use of different beam-hardening filters Methods: A 64-slice CT scanner at OU Childrens Hospital has been used to evaluate CT image contrast-to-noise ratio (CNR) and measure effective-doses based on the concept of CT dose index (CTDIvol) using the pediatric head shunt scanning protocol. The routine axial pediatric head shunt scanning protocol that has been optimized for the intrinsic x-ray tube filter has been used to evaluate CNR by acquiring images using the ACR approved CT-phantom and radiation dose CTphantom, which was used to measure CTDIvol. These results were set as reference points to study and evaluate the effects of adding different filtering materials (i.e. Tungsten, Tantalum, Titanium, Nickel and Copper filters) to the existing filter on image quality and radiation dose. To ensure optimal image quality, the scanner routine air calibration was run for each added filter. The image CNR was evaluated for different kVps and wide range of mAs values using above mentioned beam-hardening filters. These scanning protocols were run under axial as well as under helical techniques. The CTDIvol and the effective-dose were measured and calculated for all scanning protocols and added filtration, including the intrinsic x-ray tube filter. Results: Beam-hardening filter shapes energy spectrum, which reduces the dose by 27%. No noticeable changes in image low contrast detectability Conclusion: Effective-dose is very much dependent on the CTDIVol, which is further very much dependent on beam-hardening filters. Substantial reduction in effective-dose is realized using beam-hardening filters as compare to the intrinsic filter. This phantom study showed that significant radiation dose reduction could be achieved in CT pediatric shunt scanning protocols without compromising in diagnostic value of image quality.

  16. Control of the Accumulation of Non-Process Elements in Pulp Mills with Bleach Filtrate Reuse: A Chemical Equilibrium Approach to Predicting the Partitioning of Metals in Pulp Mill and Bleach Plant Streams

    SciTech Connect (OSTI)

    Frederick, W.J. Jr.; Rudie, A.W.; Schmidl, G.W.; Sinquefield, S.A.; Rorrer, G.L.; Laver, M.L.; Yantasee, W.; Ming, D.

    2000-08-01

    The overall goal of this project was to develop fundamental, experimentally based methods for predicting the solubility or organic and inorganic matter and their interactions in recycled effluent from kraft pulp mills and bleach plants. This included: characterizing the capacity of wood pulp and dissolved organic matter to bind metal ions, developing a thermodynamic database of properties needed to describe the solubility of inorganic matter in pulp mill streams, incorporation of the database into equilibrium calculation software for predicting the solubility of the metals of interest, and evaluating its capability to predict the distribution of the metals between pulp fibers, inorganic precipitates, and solution.

  17. Clinical Competence Assessments Fitness for Duty Evaluations

    E-Print Network [OSTI]

    Gleeson, Joseph G.

    Clinical Competence Assessments Fitness for Duty Evaluations Practice & Billing Monitoring Assessment· Program Fitness for Duty Evaluations· Physician Enhancement Program· (PEP) - Monitoring Custom Competence Assessment· Fitness For Duty (FFD) Evaluation· #12;PACE Clinical Competence Assessment Program2 3

  18. Truth Evaluability in Radical Interpretation Theory 

    E-Print Network [OSTI]

    Manolakaki, Eleni

    The central problem of the dissertation concerns the possibility of a distinction between truth-evaluable and non-truth-evaluable utterances of a natural language. The class of truth-evaluable utterances includes assertions, ...

  19. LNG Safety Assessment Evaluation Methods

    SciTech Connect (OSTI)

    Muna, Alice Baca; LaFleur, Angela Christine

    2015-05-01

    Sandia National Laboratories evaluated published safety assessment methods across a variety of industries including Liquefied Natural Gas (LNG), hydrogen, land and marine transportation, as well as the US Department of Defense (DOD). All the methods were evaluated for their potential applicability for use in the LNG railroad application. After reviewing the documents included in this report, as well as others not included because of repetition, the Department of Energy (DOE) Hydrogen Safety Plan Checklist is most suitable to be adapted to the LNG railroad application. This report was developed to survey industries related to rail transportation for methodologies and tools that can be used by the FRA to review and evaluate safety assessments submitted by the railroad industry as a part of their implementation plans for liquefied or compressed natural gas storage ( on-board or tender) and engine fueling delivery systems. The main sections of this report provide an overview of various methods found during this survey. In most cases, the reference document is quoted directly. The final section provides discussion and a recommendation for the most appropriate methodology that will allow efficient and consistent evaluations to be made. The DOE Hydrogen Safety Plan Checklist was then revised to adapt it as a methodology for the Federal Railroad Administration’s use in evaluating safety plans submitted by the railroad industry.

  20. Speeding Up Zeolite Evaluation for Carbon Capture

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Speeding Up Zeolite Evaluation for Carbon Capture Speeding Up Zeolite Evaluation for Carbon Capture Zeolite.png Schematic of an important class of porous materials known as...

  1. Ergonomic Evaluation for Office Workers Name: Date

    E-Print Network [OSTI]

    Slatton, Clint

    Ergonomic Evaluation for Office Workers Name: Date: Department: Campus Box #: Telephone Number: Fax Number: Building: Room Number: Email Address: Supervisor: Evaluation Date/Time: Symptoms : Respond

  2. Develop & Evaluate Materials & Additives that Enhance Thermal...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluate Materials & Additives that Enhance Thermal & Overcharge Abuse Develop & Evaluate Materials & Additives that Enhance Thermal & Overcharge Abuse 2011 DOE Hydrogen and Fuel...

  3. Nondestructive Evaluation and Monitoring Projects NASA White...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Nondestructive Evaluation and Monitoring Projects NASA White Sands Test Facility (WSTF) Nondestructive Evaluation and Monitoring Projects NASA White Sands Test Facility (WSTF)...

  4. Independent Oversight Focused Safety Management Evaluation, Idaho...

    Broader source: Energy.gov (indexed) [DOE]

    January 2001 Focused Safety Management Evaluation of the Idaho National Engineering and Environmental Laboratory This report provides the results of an evaluation of the integrated...

  5. Vehicle Technologies Office: AVTA - Evaluating National Parks...

    Energy Savers [EERE]

    Office: AVTA - Evaluating National Parks and Forest Service Fleets for Plug-in Electric Vehicles Vehicle Technologies Office: AVTA - Evaluating National Parks and Forest...

  6. SEP National Evaluation Update for STEAB

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluation Update for STEAB Martin Schweitzer Oak Ridge National Laboratory March 13, 2013 2 Managed by UT-Battelle for the Department of Energy NC Weatherization Evaluation...

  7. Building America Program Evaluation, Harvard University, Volume...

    Energy Savers [EERE]

    1, 2004 Building America Program Evaluation, Harvard University, Volume 1, 2004 Building America Program Evaluation, Volume I: Main Report, prepared by Energy Technology Innovation...

  8. Measure and Evaluate Institutional Change for Sustainability

    Broader source: Energy.gov [DOE]

    The measure and evaluation step is crucial to ensure that institutional change efforts produce successful results in meeting sustainability goals. To measure success, an evaluation is needed.

  9. Building America Program Evaluation, Harvard University, Volume...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    2, 2004 Building America Program Evaluation, Harvard University, Volume 2, 2004 Building America Program Evaluation, Volume II: Appendices, prepared by: Energy Technology...

  10. Measure and Evaluate Institutional Change for Sustainability...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Measure and Evaluate Institutional Change for Sustainability Measure and Evaluate Institutional Change for Sustainability Graphic showing 5 gears. They progress from Determine Goal...

  11. Compatibilization/Compounding Evaluation of Recovered Polymers...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    CompatibilizationCompounding Evaluation of Recovered Polymers CompatibilizationCompounding Evaluation of Recovered Polymers Presentation from the U.S. DOE Office of Vehicle...

  12. FY08 VPP Program Evaluation

    SciTech Connect (OSTI)

    Dossett, Sharon D.

    2008-01-01

    The Voluntary Protection Program (VPP) is a recognized third-party certification of worker safety and health program excellence, based on industry best practices that focus on management leadership and employee involvement, as well as other safety and health program elements. This Pacific Northwest National Laboratory (PNNL) VPP Program Evaluation is the FY-2008 report of the PNNL VPP Steering Committee regarding the status of VPP at PNNL. It is an update of the previous annual report dated January, 2007 and was completed in January 2008. An annual evaluation of the status of VPP is required of all sites that participate in the DOE-VPP. This report provides a detailed summary of the PNNL VPP Steering Committee’s evaluation of program performance and documents both strengths and improvement opportunities related to the various aspects of the VPP model.

  13. Accelerometer and strain gage evaluation

    SciTech Connect (OSTI)

    Ammerman, D.J.; Madsen, M.M.; Uncapher, W.L.; Stenberg, D.R.; Bronowski, D.R.

    1991-06-19

    This document describes the method developed by Sandia National Laboratories (SNL) to evaluate transducer used in the design certification testing of nuclear material shipping packages. This testing project was performed by SNL for the Office of Civilian Radioactive Waste Management (OCRWM). This evaluation is based on the results of tests conducted to measure ruggedness, failure frequency, repeatability, and manufacturers' calibration data under both field and laboratory conditions. The results of these tests are provided and discussed. The transducer were selected for testing by surveying cask contractors and testing facilities. Important insights relating to operational characteristics of accelerometer types were gained during field testing. 11 refs., 105 figs., 16 tabs.

  14. Evaluation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home Room NewsInformation Current HABFES October 27th,EnvironmentalEqual7/31/2016 VersionNRELEvaluation

  15. Evaluation

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would like submitKansasCommunitiesof Energy8) Wigner Home ·the Effect and

  16. Nuclear Explosive Safety Evaluation Processes

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2009-04-14

    This Manual provides supplemental details to support the nuclear explosive safety (NES) evaluation requirement of Department of Energy (DOE) Order (O) 452.2D, Nuclear Explosive Safety, dated 4/14/09. Admin Chg 1, dated 7-10-13, cancels DOE M 452.2-2.

  17. Arithmetical Foundations Recursion. Evaluation. Consistency

    E-Print Network [OSTI]

    Nabben, Reinhard

    as partial p. r. maps. Special terminating general recursive maps con- sidered are complexity controlled code evaluation versus termination conditioned soundness and based on this decidability of primitive re Partial Maps 77 3.1 Theory of partial maps . . . . . . . . . . . . . . . . . . 77 3.2 Structure theorem

  18. TurningPoint Evaluation Results

    Office of Environmental Management (EM)

    Results of the Knoxville 2012 Meeting Evaluation 15 22.06% 5 7.35% 36 52.94% 0 0% 3 4.41% 6 8.82% 3 4.41% Totals 68 100% 25 17.86% 38 27.14% 38 27.14% 38 27.14% 1 0.71% Totals 140...

  19. Assessor Training Evaluating OnSite Reports

    E-Print Network [OSTI]

    NVLAP Assessor Training Evaluating OnSite Reports and Corrective Actions #12;Assessor Training 2009Site Report form ·NVLAP OnSite Assessment Review form #12;Assessor Training 2009: Evaluating OnSite Reports · Nonconformities cited #12;Assessor Training 2009: Evaluating OnSite Reports & Corrective Actions 44 Evaluating

  20. New Methodologies for Evaluating Design Rules

    E-Print Network [OSTI]

    Gupta, Mukul

    2013-01-01

    Chip-level Design Rule Evaluation . . . . . . . .and Design Interaction . . . . . . . . . . . . . . . . . .27 vi Chip-level Design Rule

  1. An Evaluation of the Interior Wetlands

    E-Print Network [OSTI]

    , · evaluate the biological, economic and social impacts of the program components. The evaluation of the IWP, economic and social impacts of the program. Actual results are evaluated against the anticipated benefits#12;An Evaluation of the Interior Wetlands Program Accomplishments and Impacts to Date Executive

  2. Fuel Cell Transit Bus Coordination and Evaluation Plan California...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Bus Coordination and Evaluation Plan California Fuel Cell Transit Evaluation Team Fuel Cell Transit Bus Coordination and Evaluation Plan California Fuel Cell Transit Evaluation...

  3. 1994 Ergonomics Program Quality Evaluation

    SciTech Connect (OSTI)

    Longbotham, L.; Miller, D.P.

    1995-06-01

    A telephone survey was conducted to evaluate the quality of service provided to the primary customers of the Corporate Ergonomics Group (CEG). One hundred clients who received services between October 1993 and June 1994 were asked questions on their expectations, implementation of ergonomic recommendations, follow-ups, time required, productivity improvements, symptom alleviation, and satisfaction. Suggestions on how processes could be improved were also solicited. In general, recommendations are being implemented, worksite evaluations are going smoothly, and customers are satisfied with the process. The CEG was pleased to learn that half of the people who implemented recommendations experienced improvements in productivity, and four out of five symptomatic customers experienced partial or complete relief. Through analysis of the data and by studying clients` suggestions for process improvement, the CEG has developed a strategy for changing and improving current procedures and practices. These plans can be found in the last section of this report.

  4. LMFBR thermal-striping evaluation

    SciTech Connect (OSTI)

    Brunings, J.E.

    1982-10-01

    Thermal striping is defined as the fluctuating temperature field that is imposed on a structure when fluid streams at different temperatures mix in the vicinity of the structure surface. Because of the uncertainty in structural damage in LMFBR structures subject to thermal striping, EPRI has funded an effort for the Rockwell International Energy Systems Group to evaluate this problem. This interim report presents the following information: (1) a Thermal Striping Program Plan which identifies areas of analytic and experimental needs and presents a program of specific tasks to define damage experienced by ordinary materials of construction and to evaluate conservatism in the existing approach; (2) a description of the Thermal Striping Test Facility and its operation; and (3) results from the preliminary phase of testing to characterize the fluid environment to be applied in subsequent thermal striping damage experiments.

  5. Depleted uranium disposal options evaluation

    SciTech Connect (OSTI)

    Hertzler, T.J.; Nishimoto, D.D.; Otis, M.D. [Science Applications International Corp., Idaho Falls, ID (United States). Waste Management Technology Div.

    1994-05-01

    The Department of Energy (DOE), Office of Environmental Restoration and Waste Management, has chartered a study to evaluate alternative management strategies for depleted uranium (DU) currently stored throughout the DOE complex. Historically, DU has been maintained as a strategic resource because of uses for DU metal and potential uses for further enrichment or for uranium oxide as breeder reactor blanket fuel. This study has focused on evaluating the disposal options for DU if it were considered a waste. This report is in no way declaring these DU reserves a ``waste,`` but is intended to provide baseline data for comparison with other management options for use of DU. To PICS considered in this report include: Retrievable disposal; permanent disposal; health hazards; radiation toxicity and chemical toxicity.

  6. Methodology for flammable gas evaluations

    SciTech Connect (OSTI)

    Hopkins, J.D., Westinghouse Hanford

    1996-06-12

    There are 177 radioactive waste storage tanks at the Hanford Site. The waste generates flammable gases. The waste releases gas continuously, but in some tanks the waste has shown a tendency to trap these flammable gases. When enough gas is trapped in a tank`s waste matrix, it may be released in a way that renders part or all of the tank atmosphere flammable for a period of time. Tanks must be evaluated against previously defined criteria to determine whether they can present a flammable gas hazard. This document presents the methodology for evaluating tanks in two areas of concern in the tank headspace:steady-state flammable-gas concentration resulting from continuous release, and concentration resulting from an episodic gas release.

  7. PAE Evaluation Portfolio Peer Review

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuelsof EnergyApril 2014DepartmentCouncilOfficeBudgetOverview of EvaluationP

  8. Program Evaluation: EERE Planned and Completed Evaluations | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative Fuels Data CenterFinancialInvesting inServices »AboutEnergy Program Evaluation »

  9. EERE Guide for Managing General Program Evaluation Studies

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ... 34 Table 6. Selection of Evaluation Research Design for Impact Evaluations... 35 Table 7. Example:...

  10. The multifamily building evaluation project

    SciTech Connect (OSTI)

    1995-03-01

    In 1991 the New York State Energy Office embarked on a comprehensive multi-year study of multifamily housing in New York City. The principal objective of the evaluation was to determine the degree to which new windows and boiler/burner retrofits installed in 22 multifamily buildings located in the New York City region save energy and whether the savings persist over a minimum of two years. Window and boiler retrofits were selected because they are popular measures and are frequently implemented with assistance from government and utility energy programs. Approaches prospectively, energy consumption monitoring and a series of on-site inspections helped explain why energy savings exceeded or fell short of expectations. In 1993, the scope of the evaluation expanded to include the monitoring of domestic hot water (DHW) consumption in order to better understand the sizing of combined heating/DHW boilers and water consumption patterns. The evaluation was one of ten proposals selected from over 100 candidates in a nationwide competition for a US Department of Energy Building Efficiency Program Grant. The Energy Office managed the project, analyzed the data and prepared the reports, Lawrence Berkeley Laboratory served as technical advisor, and EME Group (New York City) installed meters and dataloggers, collected data, and inspected the retrofits. The New York State Energy Research and Development Authority collaborated with the Energy Office on the DHW monitoring component. Results did not always follow predictable patterns. Some buildings far exceeded energy saving estimates while others experienced an increase in consumption. Persistence patterns were mixed. Some buildings showed a steady decline in energy savings while others demonstrated a continual improvement. A clear advantage of the research design was a frequent ability to explain results.

  11. Evaluation of Retrofit Delivery Packages

    SciTech Connect (OSTI)

    Berman, M.; Smith, P.; Porse, E.

    2013-07-01

    Residential energy retrofit activities are a critical component of efforts to increase energy efficiency in the U.S. building stock; however, retrofits account for a small percentage of aggregate energy savings at relatively high per unit costs. This report by Building America research team, Alliance for Residential Building Innovation (ARBI), describes barriers to widespread retrofits and evaluates opportunities to improve delivery of home retrofit measures by identifying economies of scale in marketing, energy assessments, and bulk purchasing through pilot programs in portions of Sonoma, Los Angeles, and San Joaquin Counties, CA. These targeted communities show potential and have revealed key strategies for program design, as outlined in the report.

  12. Concurrent ultrasonic weld evaluation system

    DOE Patents [OSTI]

    Hood, D.W.; Johnson, J.A.; Smartt, H.B.

    1985-09-04

    A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws.

  13. Concurrent ultrasonic weld evaluation system

    DOE Patents [OSTI]

    Hood, D.W.; Johnson, J.A.; Smartt, H.B.

    1987-12-15

    A system for concurrent, non-destructive evaluation of partially completed welds for use in conjunction with an automated welder is disclosed. The system utilizes real time, automated ultrasonic inspection of a welding operation as the welds are being made by providing a transducer which follows a short distance behind the welding head. Reflected ultrasonic signals are analyzed utilizing computer based digital pattern recognition techniques to discriminate between good and flawed welds on a pass by pass basis. The system also distinguishes between types of weld flaws. 5 figs.

  14. Hygroscopicity Evaluation of Halide Scintillators

    SciTech Connect (OSTI)

    Zhuravleva, M; Stand, L; Wei, H; Hobbs, C. L.; Boatner, Lynn A; Ramey, Joanne Oxendine; Burger, Arnold; Rowe, E; Bhattacharya, P.; Tupitsyn, E; Melcher, Charles L

    2014-01-01

    A collaborative study of relative hygroscopicity of anhydrous halide scintillators grown at various laboratories is presented. We have developed a technique to evaluate moisture sensitivity of both raw materials and grown crystals, in which the moisture absorption rate is measured using a gravimetric analysis. Degradation of the scintillation performance was investigated by recording gamma-ray spectra and monitoring the photopeak position, count rate and energy resolution. The accompanying physical degradation of the samples exposed to ambient atmosphere was photographically recorded as well. The results were compared with ben

  15. Compliance Evaluation | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About UsEnergyof Energy| Department ofCompliance Evaluation Compliance

  16. Confidence Measures for Evaluating Pronunciation Models 

    E-Print Network [OSTI]

    Williams, Gethin; Renals, Steve

    In this paper, we investigate the use of confidence measures for the evaluation of pronunciation models and the employment of these evaluations in an automatic baseform learning process. The confidence measures and ...

  17. Evaluating Automatic Summaries of Meeting Recordings 

    E-Print Network [OSTI]

    Murray, Gabriel; Renals, Steve; Carletta, Jean; Moore, Johanna

    2005-01-01

    The research below explores schemes for evaluating automatic summaries of business meetings, using the ICSI Meeting Corpus. Both automatic and subjective evaluations were carried out, with a central interest being whether ...

  18. Computational evaluation of two reactor benchmark problems 

    E-Print Network [OSTI]

    Cowan, James Anthony

    1998-01-01

    A neutronic evaluation of two reactor benchmark problems was performed. The benchmark problems describe typical PWR uranium and plutonium (mixed oxide) fueled lattices. WIMSd4m, a neutron transport lattice code, was used to evaluate multigroup...

  19. Mass Chain Evaluation for A=95

    SciTech Connect (OSTI)

    Basu, S.K.; Sonzogni, A.; Basu, Swapan Kr.; Mukherjee, Gopal; Sonzogni, A. A.

    2011-08-01

    A full evaluation of the mass chain A = 95 has been done in the ENSDF format taking into account all the available data until June 2009. Excited states populated by in-beam nuclear reactions and by radioactive decay have been considered. The 'evp' editor, developed at the NNDC, has been used for the evaluation. This mass chain was last evaluated in 1993. Many new and improved data were reported since then. A total of 13 nuclei have been evaluated.

  20. Medium and Heavy Duty Vehicle Field Evaluations

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  1. Design and Evaluation of High Capacity Cathodes

    Broader source: Energy.gov [DOE]

    2013 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

  2. Geothermal Electricity Technology Evaluation Model (GETEM) Development...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Model (GETEM) Development Geothermal Electricity Technology Evaluation Model (GETEM) Development Project objective: Provide a tool for estimating the performance and...

  3. Management information systems software evaluation

    SciTech Connect (OSTI)

    Al-Tunisi, N.; Ghazzawi, A.; Gruyaert, F.; Clarke, D. [Saudi Aramco, Dhahran (Saudi Arabia). Process and Control Systems Dept.

    1995-11-01

    In November 1993, Saudi Aramco management endorsed a proposal to coordinate the development of the Management Information Systems (MISs) of four concurrent projects for its facilities Controls Modernization Program. The affected projects were the Ras Tanura Refinery Upgrade Project, the Abqaiq Plant Controls Modernization and the Shedgum and Uthmaniyah Gas plants Control Upgrade Projects. All of these projects had a significant requirement of MISs in their scope. Under the leadership of the Process and Control Systems Department, and MIS Coordination Team was formed with representatives of several departments. An MIS Applications Evaluation procedure was developed based on the Kepner Tregoe Decisions Analysis Process and general questionnaires were sent to over a hundred potential Vendors. The applications were divided into several categories, such as: Data Capture and Historization, Human User Interface, Trending, Reporting, Graphic Displays, Data Reconciliation, Statistical Analysis, Expert Systems, Maintenance Applications, Document Management and Operations Planning and Scheduling. For each of the MIS Application areas, detailed follow-up questionnaires were used to short list the candidate products. In May and June 1994, selected Vendors were invited to Saudi Arabia for an Exhibition which was open to all Saudi Aramco employees. In conjunction with this, the Vendors were subjected to a rigorous product testing exercise by independent teams of testers. The paper will describe the methods used and the lessons learned in this extensive software evaluation phase, which was a first for Saudi Aramco.

  4. DWPF MATERIALS EVALUATION SUMMARY REPORT

    SciTech Connect (OSTI)

    Gee, T.; Chandler, G.; Daugherty, W.; Imrich, K.; Jankins, C.

    1996-09-12

    To better ensure the reliability of the Defense Waste Processing Facility (DWPF) remote canyon process equipment, a materials evaluation program was performed as part of the overall startup test program. Specific test programs included FA-04 ('Process Vessels Erosion/Corrosion Studies') and FA-05 (melter inspection). At the conclusion of field testing, Test Results Reports were issued to cover the various test phases. While these reports completed the startup test requirements, DWPF-Engineering agreed to compile a more detailed report which would include essentially all of the materials testing programs performed at DWPF. The scope of the materials evaouation programs included selected equipment from the Salt Process Cell (SPC), Chemical Process Cell (CPC), Melt Cell, Canister Decon Cell (CDC), and supporting facilities. The program consisted of performing pre-service baseline inspections (work completed in 1992) and follow-up inspections after completion of the DWPF cold chemical runs. Process equipment inspected included: process vessels, pumps, agitators, coils, jumpers, and melter top head components. Various NDE (non-destructive examination) techniques were used during the inspection program, including: ultrasonic testing (UT), visual (direct or video probe), radiography, penetrant testing (PT), and dimensional analyses. Finally, coupon racks were placed in selected tanks in 1992 for subsequent removal and corrosion evaluation after chemical runs.

  5. Extremal Financial Risk Models and Portfolio Evaluation

    E-Print Network [OSTI]

    Zhang, Zhengjun

    Extremal Financial Risk Models and Portfolio Evaluation Zhengjun Zhang Department of Statistics assets. An important application of the proposed method is to calculate VaRs (Value at Risk) and evaluate, financial risk, portfolio evaluation. 2000 Mathematics Subject Classification: 60G70, 62G32, 62P20. 0 #12

  6. 8, 50075060, 2008 Evaluation of ozone

    E-Print Network [OSTI]

    Boyer, Edmond

    ACPD 8, 5007­5060, 2008 Evaluation of ozone trends from g-b FTIR observations C. Vigouroux et al.0 License. Atmospheric Chemistry and Physics Discussions Evaluation of tropospheric and stratospheric ozone Publications on behalf of the European Geosciences Union. 5007 #12;ACPD 8, 5007­5060, 2008 Evaluation of ozone

  7. Evaluation Criteria APEX Interim Report November, 1999

    E-Print Network [OSTI]

    California at Los Angeles, University of

    ;Evaluation Criteria APEX Interim Report November, 1999 4-3 Innovative Idea(s) Proposed Design Idea Analysis Small Scale Experiments Preliminary Design Information Criteria (Set 2) Most Promising ConceptEvaluation Criteria APEX Interim Report November, 1999 4-1 CHAPTER 4: EVALUATION CRITERIA

  8. Towards scalable partial evaluation of declarative programs

    E-Print Network [OSTI]

    Vidal, Germán

    / 44 #12;Outline 1 introduction partial evaluation applications internals 2 termination analysis) global termination is ensured (i.e., no infinitely many calls are partially evaluated) all parametersTowards scalable partial evaluation of declarative programs Germ´an Vidal Technical University

  9. Towards Scalable Partial Evaluation of Declarative Programs

    E-Print Network [OSTI]

    Vidal, Germán

    -called dynamic data. There are two main approaches to partial evaluation, depending on the way termination issuesTowards Scalable Partial Evaluation of Declarative Programs Germ´an Vidal DSIC, Universidad Polit´ecnica de Valencia, Spain gvidal@dsic.upv.es 1 Introduction Partial evaluation is a well-known technique

  10. An Evaluation of the Interior Wetlands

    E-Print Network [OSTI]

    ) in relation to the objectives established in the Strategic Plan; and, · evaluate the biological, economic of the program. (b) Program Impacts: The evaluation examines the ecological, economic and social impacts#12;An Evaluation of the Interior Wetlands Program Accomplishments and Impacts to Date Prepared

  11. NREL Develops New Optical Evaluation Approach for

    E-Print Network [OSTI]

    NREL Develops New Optical Evaluation Approach for Parabolic Trough Collectors New analytical method utility-scale power generation plants. A key param- eter for trough performance evaluation, and physical properties of system components. Optical performance is often evaluated using either a simple

  12. Evaluation of Anonymized ONS Queries

    E-Print Network [OSTI]

    Garcia-Alfaro, Joaquin; Kranakis, Evangelos

    2009-01-01

    Electronic Product Code (EPC) is the basis of a pervasive infrastructure for the automatic identification of objects on supply chain applications (e.g., pharmaceutical or military applications). This infrastructure relies on the use of the (1) Radio Frequency Identification (RFID) technology to tag objects in motion and (2) distributed services providing information about objects via the Internet. A lookup service, called the Object Name Service (ONS) and based on the use of the Domain Name System (DNS), can be publicly accessed by EPC applications looking for information associated with tagged objects. Privacy issues may affect corporate infrastructures based on EPC technologies if their lookup service is not properly protected. A possible solution to mitigate these issues is the use of online anonymity. We present an evaluation experiment that compares the of use of Tor (The second generation Onion Router) on a global ONS/DNS setup, with respect to benefits, limitations, and latency.

  13. Field Evaluation of Programmable Thermostats

    SciTech Connect (OSTI)

    Sachs, O.; Tiefenbeck, V.; Duvier, C.; Qin, A.; Cheney, K.; Akers, C.; Roth, K.

    2012-12-01

    Prior research suggests that poor programmable thermostats usability may prevent their effective use to save energy. We hypothesized that home occupants with a high-usability thermostats would be more likely to use them to save energy than people with a basic thermostat. We randomly installed a high-usability thermostat in half the 77 apartments of an affordable housing complex, installing a basic thermostat in the other half. During the heating season, we collected space temperature and furnace on-off data to evaluate occupant interaction with the thermostats, foremost nighttime setbacks. We found that thermostat usability did not influence energy-saving behaviors, finding no significant difference in temperature maintained among apartments with high- and low-usability thermostats.

  14. Evaluation of End Mill Coatings

    SciTech Connect (OSTI)

    L. J. Lazarus; R. L. Hester,

    2005-08-01

    Milling tests were run on families of High Speed Steel (HSS) end mills to determine their lives while machining 304 Stainless Steel. The end mills tested were made from M7, M42 and T15-CPM High Speed Steels. The end mills were also evaluated with no coatings as well as with Titanium Nitride (TiN) and Titanium Carbo-Nitride (TiCN) coatings to determine which combination of HSS and coating provided the highest increase in end mill life while increasing the cost of the tool the least. We found end mill made from M42 gave us the largest increase in tool life with the least increase in cost. The results of this study will be used by Cutting Tool Engineering in determining which end mill descriptions will be dropped from our tool catalog.

  15. SYNTHETIC SLING FAILURE - EVALUATIONS & RECOMMENDATIONS

    SciTech Connect (OSTI)

    MACKEY TC; HENDERSON CS

    2009-10-26

    The information and evaluations provided in this report were compiled to address the recurring problem of synthetic sling failure. As safety is the number one priority in all work aspects, a solution must be devised to prevent accidents from occurring. A total of thirteen cases regarding synthetic sling failure were evaluated in order to determine their causes, effects, and preventative measures. From the collected data, it was found that all cases in which the synthetic sling contacted the edge of its load resulted in sling failure. It is required that adequate synthetic sling protection devices be used to protect slings in any lift where the sling comes in direct contact with the edge or corner of its load. However, there are no consensus codes or standards stating the type, material, or purpose of the type of protective device used to protect the sling from being cut. Numerous industry standards and codes provide vague descriptions on how to protect synthetic slings. Without a clear, concise statement of how to protect synthetic slings, it is common for inadequate materials and sling protection devices to be used in an attempt to meet the intent of these requirements. The use of an inadequate sling protection device is the main cause of synthetic sling failure in all researched cases. Commercial sling protection devices come in many shapes and sizes, and have a variety of names, as well as advertised uses. 'Abrasion pads' and 'wear protectors' are two different names for products with the same intended purpose. There is no distinguishable way to determine the extent of sling protection which these devices will provide, or what specific scenarios they are made for. This creates room for error in a field where error is unacceptable. This report provides a recommended action for hoisting and rigging activities which require synthetic slings to contact a load, as well as recommended changes to industry standards which will benefit overall industry safety.

  16. ENergy and Power Evaluation Program

    SciTech Connect (OSTI)

    1996-11-01

    In the late 1970s, national and international attention began to focus on energy issues. Efforts were initiated to design and test analytical tools that could be used to assist energy planners in evaluating energy systems, particularly in developing countries. In 1984, the United States Department of Energy (DOE) commissioned Argonne National Laboratory`s Decision and Information Sciences Division (DIS) to incorporate a set of analytical tools into a personal computer-based package for distribution in developing countries. The package developed by DIS staff, the ENergy and Power Evaluation Program (ENPEP), covers the range of issues that energy planners must face: economic development, energy demand projections, supply-and-demand balancing, energy system expansion, and environmental impact analysis. Following the original DOE-supported development effort, the International Atomic Energy Agency (IAEA), with the assistance from the US Department of State (DOS) and the US Department of Energy (DOE), provided ENPEP training, distribution, and technical support to many countries. ENPEP is now in use in over 60 countries and is an international standard for energy planning tools. More than 500 energy experts have been trained in the use of the entire ENPEP package or some of its modules during the international training courses organized by the IAEA in collaboration with Argonne`s Decision and Information Sciences (DIS) Division and the Division of Educational Programs (DEP). This report contains the ENPEP program which can be download from the internet. Described in this report is the description of ENPEP Program, news, forums, online support and contacts.

  17. IMPLICIT EVALUATION OF EMOTION REGULATION 1 Running Head: IMPLICIT EVALUATION OF EMOTION REGULATION

    E-Print Network [OSTI]

    Gross, James J.

    IMPLICIT EVALUATION OF EMOTION REGULATION 1 Running Head: IMPLICIT EVALUATION OF EMOTION REGULATION How to Bite Your Tongue without Blowing Your Top: Implicit Evaluation of Emotion Regulation Predicts EVALUATION OF EMOTION REGULATION 2 Abstract People frequently have to control their emotions to function

  18. Public Health Air Surveillance Evaluation Project Public Health Air Surveillance Evaluation (PHASE) Project

    E-Print Network [OSTI]

    Public Health Air Surveillance Evaluation Project Public Health Air Surveillance Evaluation (PHASE) Project Evaluating, Developing, and Delivering Air Quality Characterization Data to Environmental Public data as part of the EPHT Network. The evaluation portion of this project is scheduled for completion

  19. VI. EVALUATION OF FACULTY D. Procedures for Third-Year Evaluation, Tenure and Promotion of

    E-Print Network [OSTI]

    Kasman, Alex

    VI. EVALUATION OF FACULTY D. Procedures for Third-Year Evaluation, Tenure and Promotion of Instructional and Library Faculty 1. Introduction The third-year evaluation is a significant decision point in a faculty member's career at the College of Charleston. The result of the third-year evaluation

  20. Robustness in Glyoxylate Bypass Regulation Guy Shinar1

    E-Print Network [OSTI]

    .shinar@weizmann.ac.il Introduction Robustness in biological systems has seen a renewal of research interest in recent years [1 in the protein levels. For example, specific mechanisms explain how exact adaptation in bacterial chemotaxis

  1. V-186: Drupal Login Security Module Security Bypass and Denial...

    Office of Environmental Management (EM)

    is caused due to an error within the delay feature and can be exploited to consume all web server instances via multiple failed login attempts. IMPACT: Drupal Login Security...

  2. Wakefield effects of the bypass line in LCLS-II

    E-Print Network [OSTI]

    Bane, K

    2014-01-01

    In LCLS-II, after acceleration and compression and just before entering the undulator, the beam passes through 2.5 km of 24.5 mm (radius) stainless steel pipe. The bunch that passes through the pipe is extremely short---with an rms of 8 um for the nominal 100 pC case. Thus, even though the pipe has a large aperture, the wake that applies is the {\\it short-range} resistive wall wakefield. The bunch distribution is approximately uniform, and therefore the wake induced voltage is characterized by a rather linear voltage chirp. It turns out that the wake supplies needed dechirping to the LCLS-II beam before it enters the undulator. In this note we calculate the wake, discuss the confidence in the calculation, and investigate how to improve the induced chirp linearity and/or strength. Finally, we also study the strength and effects of the transverse (dipole) resistive wall wakefield.

  3. Intronic microRNA precursors that bypass Drosha processing

    E-Print Network [OSTI]

    Bartel, David

    additional pre-miRNAs/introns, termed mirtrons, were found in a search of other loci with similar properties the structural features of pre-miRNAs to enter the miRNA-processing pathway without Drosha-mediated cleavage. We

  4. V-103: RSA Authentication Agent Lets Remote Users Bypass Authenticatio...

    Broader source: Energy.gov (indexed) [DOE]

    Authentication Agent 7.1 for Microsoft Windows and RSA Authentication Client 3.5 Access Control Vulnerability T-704: RSA enVision Lets Remote Users View Files and Remote...

  5. EIS-0352: U.S. 93 Hoover Dam Bypass Project

    Broader source: Energy.gov [DOE]

    The Western Area Power Administration (WAPA) served as a cooperating agency for this Federal Highway Administration Environmental Impact Statement (EIS) due to WAPA’s role in the relocation of several transmission lines. The Federal Highway Administration (FHWA) prepared an Environmental Impact Statement (EIS) for construction of a new segment of U.S. Highway 93 for the purpose of improving congestion and hazardous vehicle/pedestrian conflicts where the highway crosses the Colorado River over Hoover Dam. As a cooperating agency for the EIS, WAPA proposed modifications to its transmission system and facilities to accommodate the construction of the new highway and bridge spanning the Colorado River.

  6. Dehumidification Without Re-heat Using Face and Bypass Dampers 

    E-Print Network [OSTI]

    Warila, D. T.

    1994-01-01

    Installations with chill water cooling, needing constant air volume and dehumidification, traditionally use a draw through air handling unit with a cooling coil and a re-heat coil. Dehumidification is achieved by overcooling the discharge air...

  7. DEVELOPMENT OF BYPASSED OIL RESERVES USING BEHIND CASING RESISTIVITY MEASUREMENTS

    SciTech Connect (OSTI)

    Michael G. Conner; Jeffrey A. Blesener

    2005-02-07

    Tubing and rods of the S.P. Pedro-Nepple No.1 well were pulled and the well was prepared for running of Schlumberger's Cased Hole Formation Resistivity Tool (CHFR) in selected intervals. The CHFR tool was successfully run and data was captured. The CHFR formation resistivity readings were compared to original open hole resistivity measurements. Separation between the original and CHFR resistivity curves indicate both swept and un-swept sand intervals. Both watered out sand intervals and those with higher remaining oil saturation have been identified. Due to the nature of these turbidite sands being stratigraphically continuous, both the swept and unswept layers have been correlated across to one of the four nearby offset shallow wells. As a result of the cased hole logging, one well was selected for a workover to recomplete high oil saturated shallow sand intervals. During the second report period, well S.P. Pedro-Nepple No.2 was plugged back with cement excluding the previously existing production interval, squeeze cemented behind casing, selectively perforated in the shallower ''Bell'' zone and placed on production to develop potential new oil reserves and increase overall well productivity. Prior workover production averaged 3.0 BOPD for the previous six-months. Post workover well production was marginally increased to 3.7 BOPD on average for the following six months.

  8. Development of Bypassed Oil Reserves Using Behind Casing Resistivity Measurements

    SciTech Connect (OSTI)

    Michael G. Conner

    2004-02-14

    Tubing and rods of the S.P. Pedro-Nepple No.1 well were pulled and the well was prepared for running of Schlumberger's Cased Hole Formation Resistivity Tool (CHFR) in selected intervals. The CHFR tool was successfully run and data was captured. The CHFR formation resistivity readings were compared to original open hole resistivity measurements. Separation between the original and CHFR resistivity curves indicate both swept and un-swept sand intervals. Both watered out sand intervals and those with higher remaining oil saturation have been identified. Due to the nature of these turbidite sands being stratigraphically continuous, both the swept and unswept layers have been correlated across to one of the four nearby offset shallow wells. As a result of the cased hole logging, one well was selected for a workover to recomplete and test suspected oil saturated shallow sand intervals. Well S.P. Pedro-Nepple No.2 was plugged back with cement excluding the previously existing production interval, squeeze cemented behind casing, selectively perforated in the shallower ''Bell'' zone and placed on production to develop potential new oil reserves and increase overall well productivity. Prior workover production averaged 3.0 BOPD for the previous six-months from the original ''Meyer'' completion interval. Post workover well production was increased to 5.3 BOPD on average for the following fifteen months. In December 2005, a bridge plug was installed above the ''Bell'' zone to test the ''Foix'' zone. Another cement squeeze was performed behind casing, selectively perforated in the shallower ''Foix'' zone and placed on production. The ''Foix'' test has produced water and a trace of oil for two months.

  9. DEVELOPMENT OF BYPASSED OIL RESERVES USING BEHIND CASING RESISTIVITY MEASUREMENTS

    SciTech Connect (OSTI)

    Michael G. Conner; Jeffrey A. Blesener

    2006-04-02

    Tubing and rods of the S.P. Pedro-Nepple No.1 well were pulled and the well was prepared for running of Schlumberger's Cased Hole Formation Resistivity Tool (CHFR) in selected intervals. The CHFR tool was successfully run and data was captured. The CHFR formation resistivity readings were compared to original open hole resistivity measurements. Separation between the original and CHFR resistivity curves indicate both swept and un-swept sand intervals. Both watered out sand intervals and those with higher remaining oil saturation have been identified. Due to the nature of these turbidite sands being stratigraphically continuous, both the swept and unswept layers have been correlated across to one of the four nearby offset shallow wells. As a result of the cased hole logging, one well was selected for a workover to recomplete and test suspected oil saturated shallow sand intervals. Well S.P. Pedro-Nepple No.2 was plugged back with cement excluding the previously existing production interval, squeeze cemented behind casing, selectively perforated in the shallower ''Bell'' zone and placed on production to develop potential new oil reserves and increase overall well productivity. Prior workover production averaged 3.0 BOPD for the previous six-months from the original ''Meyer'' completion interval. Post workover well production was increased to 5.3 BOPD on average for the following fifteen months. In December 2005, a bridge plug was installed above the ''Bell'' zone to test the ''Foix'' zone. Another cement squeeze was performed behind casing, selectively perforated in the shallower ''Foix'' zone and placed on production. The ''Foix'' test has produced water and a trace of oil for two months.

  10. CLINICAL STUDY Control of Lipids at Baseline in the Bypass

    E-Print Network [OSTI]

    Terasaki, Mark

    cholesterol and triglyceride values were lower in the United States and Canada. Adjustment for age, sex, edu of death in post-MI patients with diabetes as high as 2-fold or greater.4 The 7-year rate of MI (fatal, as rates increase 2- to 5-fold compared with the general population.2,3 Also of concern is the higher 1

  11. T-646: Debian fex authentication bypass | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Financing ToolInternational Affairs, Before theFebruary 1,7/109 HistoricalResources46: Debian fex

  12. Thermal Bypass Air Barriers in the 2009 International Energy Conservation

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsState ofSavings for Specific Measures 5 U.S. C. §Storage |i

  13. U-169: Sympa Multiple Security Bypass Vulnerabilities | Department of

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsStateof Energy TwoEventScripting Attacks

  14. V-103: RSA Authentication Agent Lets Remote Users Bypass Authentication

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobs Search USAJobs SearchWater-Saving Projects1:Department

  15. V-237: TYPO3 Security Bypass Vulnerabilities | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram: Report1538-1950 TimelineUtility-Scale Solar

  16. EERE Guide for Managing General Program Evaluation Studies 2

    Broader source: Energy.gov [DOE]

    Details and explains the 5 types of general program evaluations.  Provides guidance on selecting the appropriate type of evaluation, and offers clean advice on managing the selected evaluation.

  17. Seismic Analysis of Facilities and Evaluation of Risk | Department...

    Office of Environmental Management (EM)

    Seismic Analysis of Facilities and Evaluation of Risk Seismic Analysis of Facilities and Evaluation of Risk Seismic Analysis of Facilities and Evaluation of Risk Michael Salmon,...

  18. Programs Planning to Do Evaluations | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Programs Planning to Do Evaluations Programs Planning to Do Evaluations Better Buildings Neighborhood Program Data and Evaluation Peer Exchange Call: Programs Planning to Do...

  19. Performance Evaluation for Weekly Natural Gas Storage Report

    Weekly Natural Gas Storage Report (EIA)

    Performance Evaluation Latest update: September 26, 2014 Performance Evaluation 2011 - 2013 PDF - Released September 2014 Performance Evaluation 2008 - 2010 PDF - Released June...

  20. Evaluation of Emerging Technology for Geothermal Drilling and...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications Evaluation of Emerging Technology for Geothermal Drilling and Logging Applications Evaluation of...

  1. Evaluation of MHTGR fuel reliability

    SciTech Connect (OSTI)

    Wichner, R.P. [Oak Ridge National Lab., TN (United States); Barthold, W.P. [Barthold Associates, Inc., Knoxville, TN (United States)

    1992-07-01

    Modular High-Temperature Gas-Cooled Reactor (MHTGR) concepts that house the reactor vessel in a tight but unsealed reactor building place heightened importance on the reliability of the fuel particle coatings as fission product barriers. Though accident consequence analyses continue to show favorable results, the increased dependence on one type of barrier, in addition to a number of other factors, has caused the Nuclear Regulatory Commission (NRC) to consider conservative assumptions regarding fuel behavior. For this purpose, the concept termed ``weak fuel`` has been proposed on an interim basis. ``Weak fuel`` is a penalty imposed on consequence analyses whereby the fuel is assumed to respond less favorably to environmental conditions than predicted by behavioral models. The rationale for adopting this penalty, as well as conditions that would permit its reduction or elimination, are examined in this report. The evaluation includes an examination of possible fuel-manufacturing defects, quality-control procedures for defect detection, and the mechanisms by which fuel defects may lead to failure.

  2. Former Workers Medical Facilities with Experience Evaluating...

    Energy Savers [EERE]

    Beryllium Disease (CBD). Because the medical community at large is not experienced in the evaluation and treatment of individuals with CBD, this list is offered to individuals in...

  3. Evaluation of the Better Buildings Neighborhood Program

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (based on 3-year evaluation findings) Achieve 15% to 30% estimated energy savings from residential energy efficiency upgrades Average energy upgrade savings (%) Verified...

  4. Technology Validation: Fuel Cell Bus Evaluations

    SciTech Connect (OSTI)

    Eudy, L.

    2005-05-01

    Presentation for the 2005 U.S. Department of Energy Hydrogen Program review showing status of U.S. and international fuel cell transit bus evaluations.

  5. Nevada Guidelines for Evaluating and Documenting Traditional...

    Open Energy Info (EERE)

    Properties Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Nevada Guidelines for Evaluating and Documenting Traditional Cultural Properties...

  6. Technologies for Evaluating Fish Passage Through Turbines

    Broader source: Energy.gov [DOE]

    This report evaluated the feasibility of two types of technologies to observe fish and near neutrally buoyant drogues as they move through hydropower turbines.

  7. Risk Evaluation and Reduction | Department of Energy

    Broader source: Energy.gov (indexed) [DOE]

    activities. In addition, the team develops policies and procedures to guide the management and execution of follow-up activities. The team also monitors and evaluates...

  8. Helping Policymakers Evaluate Distributed Wind Options | Department...

    Office of Environmental Management (EM)

    consumers evaluate the effectiveness of policies that promote distributed wind-wind turbines installed at homes, farms, and busi-nesses. Distributed wind allows Americans to...

  9. Webinar: National Fuel Cell Technology Evaluation Center

    Broader source: Energy.gov [DOE]

    Video recording and text version of the Fuel Cell Technologies Office webinar titled "National Fuel Cell Technology Evaluation Center (NFCTEC)," originally presented on March 11, 2014.

  10. Issues evaluation process at Rocky Flats Plant

    SciTech Connect (OSTI)

    Smith, L.C.

    1992-04-16

    This report describes the issues evaluation process for Rocky Flats Plant as established in July 1990. The issues evaluation process was initiated February 27, 1990 with a Charter and Process Overview for short-term implementation. The purpose of the process was to determine the projects required for completion before the Phased Resumption of Plutonium Operations. To determine which projects were required, the issues evaluation process and emphasized risk mitigation, based on a ranking system. The purpose of this report is to document the early design of the issues evaluation process to record the methodologies used that continue as the basis for the ongoing Issues Management Program at Rocky Flats Plant.

  11. Program Evaluation Topics and Questions Library

    Broader source: Energy.gov [DOE]

    Menu of initial questions for a program administrator to use in developing a real-time evaluation survey to collect qualitative data from program contractors.

  12. Clark Public Utilities Impact Evaluation Final Report

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Clark Public Utilities Impact Evaluation Final Report - July 2015 - Home Energy Reports Memorandum 1375 Walnut Street Suite 200 Boulder, CO 80302 303-728-2500 To: Lauren Gage...

  13. Vehicle Technologies Office: AVTA - Evaluating Military Bases...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Military Bases and Fleet Readiness for Electric Vehicles Vehicle Technologies Office: AVTA - Evaluating Military Bases and Fleet Readiness for Electric Vehicles The Vehicle...

  14. Better Buildings Neighborhood Program Data & Evaluation Peer...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    11, 2012 Better Buildings Neighborhood Program Data & Evaluation Peer Exchange Call: Extracting and Using Data from Tracking Systems Call Slides and Discussion Summary Agenda *...

  15. Better Buildings Neighborhood Program Data & Evaluation Peer...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    February 14, 2013 Better Buildings Neighborhood Program Data & Evaluation Peer Exchange Call: Tracking and Using Data to Support Revenue Streams Agenda * Call Logistics and...

  16. Clothes Dryer Automatic Termination Sensor Evaluation

    SciTech Connect (OSTI)

    TeGrotenhuis, Ward E.

    2014-10-01

    Volume 1: Characterization of Energy Use in Residential Clothes Dryers. The efficacy and energy efficiency of clothes dryers are studied in this evaluation.

  17. Energy Efficiency Program Impact Evaluation Guide

    SciTech Connect (OSTI)

    Evaluation, Measurement, and Verification Working Group

    2012-12-20

    The key efficiency evaluation, measurement, and verification resource for novices and experts. Includes definitions, concepts, and steps for calculating savings, avoided emissions, and other impacts.

  18. Geothermal resistivity resource evaluation survey Waunita Hot...

    Open Energy Info (EERE)

    Geothermal resistivity resource evaluation survey Waunita Hot Springs project, Gunnison County, Colorado Jump to: navigation, search OpenEI Reference LibraryAdd to library Report:...

  19. Chapter 21: Residential Lighting Evaluation Protocol. Uniform...

    Office of Environmental Management (EM)

    Evaluation Protocol The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures Created as part of subcontract with period of...

  20. Chapter 16: Retrocommissioning Evaluation Protocol. The Uniform...

    Energy Savers [EERE]

    Evaluation Protocol The Uniform Methods Project: Methods for Determining Energy Efficiency Savings for Specific Measures Created as part of subcontract with period of...

  1. Evaluation Report: IG-0738 | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    IG-0738 Evaluation Report: IG-0738 September 18, 2006 The Department's Unclassified Cyber Security Program-2006 To help accomplish its strategic goals in the areas of...

  2. State Energy Efficiency Program Evaluation Inventory - Energy...

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    Browse by Tag Alphabetical Frequency Tag Cloud Full report Inventory spreadsheet State Energy Efficiency Program Evaluation Inventory Release date: July 11, 2013 Next release...

  3. Advanced Vehicle Technology Analysis & Evaluation Team

    Broader source: Energy.gov [DOE]

    Presentation on Advanced Vehicle Technology Analysis & Evaluation Team to the DOE Systems Analysis Workshop held in Washington, D.C. July 28-29, 2004.

  4. Benchmarking & Transparency Policy and Program Impact Evaluation...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    & Transparency Policy and Program Impact Evaluation Handbook May 2015 Prepared for the U.S. Department of Energy by Navigant Consulting, Inc.and Steven Winter Associates, Inc....

  5. Advanced vehicle technology analysis and evaluation activities

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    FY 2007 annual progress report evaluating the technologies and performance characteristics of advanced automotive powertrain components and subsystems in an integrated vehicle systems context.

  6. GETEM -Geothermal Electricity Technology Evaluation Model | Department...

    Broader source: Energy.gov (indexed) [DOE]

    guide to providing input to GETEM, the Geothermal Electricity Technology Evaluation Model. GETEM is designed to help the Geothermal Technologies Program of the U.S. Department of...

  7. Evaluating Economizer Use In Data Centers

    E-Print Network [OSTI]

    Chu, Benjamin

    2009-01-01

    Evaluating Economizer Use in Data Centers Benjamin Chu“,eelet Keywords: Data centers, economizers, HVAC, indoor airfor data centers are economizers, which turn off the power

  8. An Evaluation of Enhanced Geothermal Systems Technology

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    An Evaluation of Enhanced Geothermal Systems Technology Geothermal Technologies Program 2008 Foreword This document presents the results of an eight-month study by the Department...

  9. Preliminary Energy Savings Impact Evaluation: Better Buildings...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    and agriculture sectors. Technical Report More Documents & Publications Savings and Economic Impacts of the Better Buildings Neighborhood Program, Final Evaluation Volume 2...

  10. Preliminary Energy Savings Impact Evaluation: Better Buildings...

    Broader source: Energy.gov (indexed) [DOE]

    for the U.S. Department of Energy, November 4, 2013. Preliminary Energy Savings Impact Evaluation More Documents & Publications Savings and Economic Impacts of the Better...

  11. Evaluation Of Chemical Geothermometers For Calculating Reservoir...

    Open Energy Info (EERE)

    Evaluation Of Chemical Geothermometers For Calculating Reservoir Temperatures At Nevada Geothermal Power Plants Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  12. EERE Guide for Managing General Program Evaluation Studies-- Appendix 11

    Broader source: Energy.gov [DOE]

    The American Evaluation Association developed the ethical principles in this Appendix to guide the professional practice of evaluators. EERE expects evaluation experts who perform general program evaluations of its programs to be governed by these principles.

  13. Evaluation of open pit incineration for the disposal of hydrocarbon wastes 

    E-Print Network [OSTI]

    Bell, Stuart Ray

    1981-01-01

    filtration or the additional other fuel may also be easily incinerated. The third category is a sludge. This sludge contains a high solid or sand content suspended in a heavy lubricating oil. The oil is barely liquid in nature and methods of pumping... of hydrocarbon wastes using an open pit air curtain destructor (ACD) type incinerator was investigated. A prototype experi- mental incinerator was designed and constructed, and experiments were performed with it to determine the relationships among various...

  14. Hydraulic pump with in-ground filtration and monitoring capability

    DOE Patents [OSTI]

    Hopkins, Charles D. (Augusta, GA); Livingston, Ronald R. (Aiken, SC); Toole, Jr., William R. (Aiken, SC)

    1996-01-01

    A hydraulically operated pump for in-ground filtering and monitoring of ws or other fluid sources, including a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of o-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may be used independently of the optical cell, as a sample pump to transport a sample fluid from a source to a container for later analysis.

  15. Structural Oil Pan With Integrated Oil Filtration And Cooling System

    DOE Patents [OSTI]

    Freese, V, Charles Edwin (Westland, MI)

    2000-05-09

    An oil pan for an internal combustion engine includes a body defining a reservoir for collecting engine coolant. The reservoir has a bottom and side walls extending upwardly from the bottom to present a flanged lip through which the oil pan may be mounted to the engine. An oil cooler assembly is housed within the body of the oil pan for cooling lubricant received from the engine. The body includes an oil inlet passage formed integrally therewith for receiving lubricant from the engine and delivering lubricant to the oil cooler. In addition, the body also includes an oil pick up passage formed integrally therewith for providing fluid communication between the reservoir and the engine through the flanged lip.

  16. Hydraulic pump with in-ground filtration and monitoring capability

    DOE Patents [OSTI]

    Hopkins, C.D.; Livingston, R.R.; Toole, W.R. Jr.

    1996-10-29

    A hydraulically operated pump is described for in-ground filtering and monitoring of waters or other fluid sources, includes a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of o-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may be used independently of the optical cell, as a sample pump to transport a sample fluid from a source to a container for later analysis. 5 figs.

  17. An Afternoon with Professor Hermanowicz: Exploring Sustainability and Water Filtration

    E-Print Network [OSTI]

    2015-01-01

    different approaches for sustainability and to look at heatwhat constitutes sustainability. BSJ thanks Dr. Hermanowiczdo you measure and define sustainability in the water reuse

  18. Engineering Optimisation of cryptosporidium filtration under simulated swimming

    E-Print Network [OSTI]

    Martin, Ralph R.

    -scale modelling of ceramic composite layers and reinforced concrete slabs subjected to blast loading / Zainorizuan Pelley. Ph.D. 2013 Computational modelling of hysteresis and damage in reinforced concrete bridge media using the lattice Boltzmann method / Bruce Jones. Ph.D. 2013 #12; Finite element modelling

  19. Polymer filtration: An emerging technology for selective metals recovery

    SciTech Connect (OSTI)

    Smith, B.F.; Robison, T.W.; Cournoyer, M.E.

    1995-12-31

    A new technology is under development to selectively recover regulated metal ions from electroplating rinse waters. The electroplating metal ions are recovered in a concentrated form with the appropriate counter ions ready for return to the original electroplating bath. The technology is based on the use of specially designed water-soluble polymers that selectively bind with the metal ions in the rinse bath. The polymers have such a large molecular weight that they can be physically separated using available ultrafiltration technology. The advantages of this technology are high metal selectivity with no sludge formation, rapid processing, low energy, low capital costs, and small size. We have tested and demonstrated the recovery of zinc and nickel (a new alloy electroplating bath designed to replace cadmium) from rinse waters. The metal-ion concentrate was returned to the original electroplating bath. Applications of this technology include waste treatment for textile, paint and dye production, chemical manufacturing, and nuclear reactor and reprocessing operations.

  20. The removal of precious metals by conductive polymer filtration

    SciTech Connect (OSTI)

    Cournoyer, M.E.; Stark, P.C.; Trujillo, S.M.; Aguino, R.E.

    1997-12-31

    The growing demand for platinum-group metals (PGM) for several applications within the DOE complex and in industry, the need for modern and clean processes and the increasing volume of low grade material for secondary PGM recovery have a direct impact on the industrial practice of recovering and refining of precious metals. PGM recovery have a direct impact on the industrial practice of recovering and refining of precious metals. With precipitation-dissolution methods being the most common method of recovery, there is a tremendous need for advanced metal ion recovery and waste minimization techniques. Here at Los Alamos there is an integrated program in ligand-design and separation`s chemistry for recovery of actinide and toxic metals from variety of process streams. In the present investigations, a novel hollow fiber membrane (CPI) is characterized and its selectivity for PGM reported. In addition, a continuous single unit operation is proposed for the removal, concentration and recovery of platinum from catalytic and electroplating process streams is proposed.

  1. Transformation Groups c Birkhauser Boston (2009) FINITE SCHUR FILTRATION DIMENSION

    E-Print Network [OSTI]

    Kallen, Wilberd

    2009-01-01

    of Fundamental Research Homi Bhabha Road Mumbai-400005, India srinivas@math.tifr.res.in WILBERD VAN DER KALLEN compatibly. This means that the structure map A M M is a G-module map. Our main theorem is Theorem 1

  2. Advanced Energy-Efficient Filtration: Fan Filter Unit

    SciTech Connect (OSTI)

    Xu, Tengfang

    2005-10-01

    The objective of this project is to provide assistance in development of a standard test procedure for fan-filter units, which are gaining popularity for use in California cleanrooms. In particular, LBNL carried out collaboration with various stakeholders in the industry and took a lead in developing a draft standard method for testing the energy performance of fan-filter units, and provided assistance to California public utility companies by testing the draft method in PG&E's testing facility. Through testing more units in the future with a robust standard method, baseline performance information can be developed for use in possible energy incentive programs.

  3. CENTRIFUGAL MEMBRANE FILTRATION (Technical Report) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Partnering. During Phase 1 testing conducted at the EERC using the SpinTek ST-IIL unit operating on a surrogate tank waste, a solids cake developed on the membrane surface....

  4. Air cooled turbine component having an internal filtration system

    DOE Patents [OSTI]

    Beeck, Alexander R. (Orlando, FL)

    2012-05-15

    A centrifugal particle separator is provided for removing particles such as microscopic dirt or dust particles from the compressed cooling air prior to reaching and cooling the turbine blades or turbine vanes of a turbine engine. The centrifugal particle separator structure has a substantially cylindrical body with an inlet arranged on a periphery of the substantially cylindrical body. Cooling air enters centrifugal particle separator through the separator inlet port having a linear velocity. When the cooling air impinges the substantially cylindrical body, the linear velocity is transformed into a rotational velocity, separating microscopic particles from the cooling air. Microscopic dust particles exit the centrifugal particle separator through a conical outlet and returned to a working medium.

  5. Size exclusion deep bed filtration: Experimental and modelling uncertainties

    SciTech Connect (OSTI)

    Badalyan, Alexander You, Zhenjiang; Aji, Kaiser; Bedrikovetsky, Pavel; Carageorgos, Themis; Zeinijahromi, Abbas

    2014-01-15

    A detailed uncertainty analysis associated with carboxyl-modified latex particle capture in glass bead-formed porous media enabled verification of the two theoretical stochastic models for prediction of particle retention due to size exclusion. At the beginning of this analysis it is established that size exclusion is a dominant particle capture mechanism in the present study: calculated significant repulsive Derjaguin-Landau-Verwey-Overbeek potential between latex particles and glass beads is an indication of their mutual repulsion, thus, fulfilling the necessary condition for size exclusion. Applying linear uncertainty propagation method in the form of truncated Taylor's series expansion, combined standard uncertainties (CSUs) in normalised suspended particle concentrations are calculated using CSUs in experimentally determined parameters such as: an inlet volumetric flowrate of suspension, particle number in suspensions, particle concentrations in inlet and outlet streams, particle and pore throat size distributions. Weathering of glass beads in high alkaline solutions does not appreciably change particle size distribution, and, therefore, is not considered as an additional contributor to the weighted mean particle radius and corresponded weighted mean standard deviation. Weighted mean particle radius and LogNormal mean pore throat radius are characterised by the highest CSUs among all experimental parameters translating to high CSU in the jamming ratio factor (dimensionless particle size). Normalised suspended particle concentrations calculated via two theoretical models are characterised by higher CSUs than those for experimental data. The model accounting the fraction of inaccessible flow as a function of latex particle radius excellently predicts normalised suspended particle concentrations for the whole range of jamming ratios. The presented uncertainty analysis can be also used for comparison of intra- and inter-laboratory particle size exclusion data.

  6. An Afternoon with Professor Hermanowicz: Exploring Sustainability and Water Filtration

    E-Print Network [OSTI]

    2015-01-01

    focuses on the process of water quality treatment so thatthe quality of stored water. In this interview, Dr.health, on providing safe water, sanitation, and cleaning

  7. Numerical Simulation of Mud-Filtrate Invasion in Deviated Wells

    E-Print Network [OSTI]

    Torres-Verdín, Carlos

    permeability, relative permeability, pore pressure, shale chem- istry, capillary pressure, and residual fluid, capillary pressure, permeability anisotropy, dipping layers, and degree of hydraulic communication between density and chemistry, mud circulation pressure, and time of fil- tration may all significantly affect

  8. PHENOMENOLOGICAL MODEL OF FILTRATION PROCESSES: 1. CAKE FORMATION AND EXPRESSION

    E-Print Network [OSTI]

    and in chemical and mining as well as in food and paper companies. The variety of equipment and procedures that are utilized to #12;lter the several materials in these industries is very large. For example, vacuum involve the same fundamental principles. Take as an example the vacuum #12;ltration in a rotary #12;lter

  9. DOE ZERH Webinar: Ventilation and Filtration Strategies with...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    at my house who loves to throw Cheerios down the ducts. So that's fun. The other pictures here is showing someone's ceiling joints with mastic. That's another requirement in...

  10. Influence of solute-solute interactions on membrane filtration 

    E-Print Network [OSTI]

    Neale, Peta Anne

    2009-01-01

    An understanding of solute-solute interactions is essential for aquatic systems as this can affect the fate and behaviour of micropollutants in the environment and engineered systems. Despite the importance of solute-solute ...

  11. Hydraulic pump with in-ground filtration and monitoring capability

    DOE Patents [OSTI]

    Hopkins, C.D.; Livingston, R.R.; Toole, W.R. Jr.

    1995-01-01

    A hydraulically operated pump is described for in-ground filtering and monitoring of wells or other fluid sources, including a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of O-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may be used independently of the optical cell, as a sample pump to transport a sample fluid from a source to a container for later analysis.

  12. CMI Unique Facility: Filtration Test Facility | Critical Materials

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 OutreachProductswsicloudwsiclouddenDVA N C E D B L OBransenBusinessInitialRadiological Surveys

  13. Side Stream Filtration for Cooling Towers | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirley Ann Jackson About1996HowFOA ApplicantofSTEMCarbonDepartment of EnergyofSheilaDepartment

  14. Side Stream Filtration for Cooling Towers | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergy BillsNo.Hydrogen4 » Searchwith Ultra-DeepwaterShutting the Door onSideSide

  15. Development of Advanced Diesel Particulate Filtration (DPF) Systems

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8,

  16. Development of Advanced Diesel Particulate Filtration (DPF) Systems |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8,Department of Energy 1 DOE Hydrogen and Fuel Cells

  17. Development of Advanced Diesel Particulate Filtration (DPF) Systems |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8,Department of Energy 1 DOE Hydrogen and Fuel

  18. Diesel Particulate Filtration (DPF) Technology: Success stories at the High

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum Based| Department8,Department of Energy2 DOE|Energy, Highlights of

  19. Magnetic Filtration Process, Magnetic Filtering Material, and Method of

    Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousandReport) |Administration Savannah River SiterayForming

  20. REPORT NO. 4 ESTIMATES AND EVALUATION OF

    E-Print Network [OSTI]

    REPORT NO. 4 ESTIMATES AND EVALUATION OF FALLOUT IN THE UNITED STATES FROM NUCLEAR WEAPONS ESTIMATES AND EVALUATION OF FALLOUT IN THE UNITED STATES FROM NUCLEAR WEAPONS TESTING CONDUCTED THROUGH 1962 Section II History of Nuclear Weapons Testing. . . . . . . . . . . . . . . . 4 Section III Atmospheric

  1. An Experimental Evaluation of Computer Graphics Imagery

    E-Print Network [OSTI]

    Meyer, Gary

    An Experimental Evaluation of Computer Graphics Imagery GARY W. MEYER, HOLLY E. RUSHMEIER, MICHAEL algorithms; 1.3.6 [Computer Graphics]: Methodology and Techniques-ergonomics; 1.3.7 [Computer Graphics Evaluation of Computer Graphics Imagery l 31 Early realistic image synthesis techniques and the lighting

  2. Evaluation of commercially available exterior digital VMDs

    SciTech Connect (OSTI)

    Ringler, C.E.; Hoover, C.E.

    1995-06-01

    This report discusses the testing and evaluation of thirteen commercially available exterior digital video motion detection (VMD) systems. The systems were evaluated for use in a specific outdoor application. The report focuses primarily on the testing parameters, each system`s advertised features, and the nuisance alarm and detection test results.

  3. Evaluating baseball bat performance L. V. Smith

    E-Print Network [OSTI]

    Smith, Lloyd V.

    Evaluating baseball bat performance L. V. Smith School of Mechanical and Materials Engineering performance were evaluated through a series of ®nite element simulations. Results of the comparison show that current test methods contradict one another and do not describe the performance advantage of modern hollow

  4. LIFECYCLE ASSESSMENT AND ECONOMIC EVALUATION OF RECYCLING

    E-Print Network [OSTI]

    Bateman, Ian J.

    entails significant environmental impacts. This study compares the relative environmental impacts is then extended to incorporate an economic evaluation of the environmental impacts. This combination of lifecycle and evaluates the environmental impacts of a product from the acquisition of raw materials, through manufacture

  5. Benchmarking and Evaluating Recongurable Architectures Targeting

    E-Print Network [OSTI]

    Luk, Wayne

    benchmarking suite that evaluates the power consumption of reconfigurable technology for applications targeting the mobile computing domain. This benchmark suite includes seven designs; one design targets fine-grained FPGA fabrics allowing for quick state- of-the-art evaluation, and six designs are specified at a high

  6. Automated evaluation of generalized topographic maps

    E-Print Network [OSTI]

    in their production lines. Map generalization inevitably changes certain aspects (accuracy, com- pleteness, etcAutomated evaluation of generalized topographic maps -- supported by formalization and data of the author. #12;AUTOMATED EVALUATION OF GENERALIZED TOPOGRAPHIC MAPS -- SUPPORTED BY FORMALIZATION AND DATA

  7. Maquoketa Shale Caprock Integrity Evaluation

    SciTech Connect (OSTI)

    Leetaru, Hannes

    2014-09-30

    The Knox Project objective is to evaluate the potential of formations within the Cambrian-Ordovician strata above the Mt. Simon Sandstone (St. Peter Sandstone and Potosi Dolomite) as potential targets for carbon dioxide (CO2) sequestration in the Illinois and Michigan Basins. The suitability of the St. Peter Sandstone and Potosi Dolomite to serve as reservoirs for CO2 sequestration is discussed in separate reports. In this report the data gathered from the Knox project, the Illinois Basin – Decatur Project (IBDP) and Illinois Industrial Carbon Capture and Sequestration project (IL-ICCS) are used to make some conclusions about the suitability of the Maquoketa shale as a confining layer for CO2 sequestration. These conclusions are then upscaled to basin-wide inferences based on regional knowledge. Data and interpretations (stratigraphic, petrophysical, fractures, geochemical, risk, seismic) applicable to the Maquoketa Shale from the above mentioned projects was inventoried and summarized. Based on the analysis of these data and interpretations, the Maquoketa Shale is considered to be an effective caprock for a CO2 injection project in either the Potosi Dolomite or St. Peter Sandstone because it has a suitable thickness (~200ft. ~61m), advantageous petrophysical properties (low effective porosity and low permeability), favorable geomechanical properties, an absence of observable fractures and is regionally extensive. Because it is unlikely that CO2 would migrate upward through the Maquoketa Shale, CO2, impact to above lying fresh water aquifers is unlikely. Furthermore, the observations indicate that CO2 injected into the St. Peter Sandstone or Potosi Dolomite may never even migrate up into the Maquoketa Shale at a high enough concentrations or pressure to threaten the integrity of the caprock. Site specific conclusions were reached by unifying the data and conclusions from the IBDP, ICCS and the Knox projects. In the Illinois Basin, as one looks further away from these sites, the formation characteristics are expected to vary. The degree of how well this data can be extrapolated throughout the Basins (regionalized) is difficult to quantify because of the limited amount of data collected on the Maquoketa Shale away from IBDP, IL-ICCS and the Knox projects. Data gathered from the IBDP/IL-ICCS/Knox projects were used to make conclusions about the suitability of the Maquoketa shale as a confining layer for CO2 sequestration. This study indicates that the Maquoketa Shale would be a suitable caprock for a CO2 injection program in either the Potosi Dolomite or St. Peter Sandstone.

  8. VI. EVALUATION OF FACULTY E. Procedures for the Annual and Merit Evaluation of Regular

    E-Print Network [OSTI]

    Kunkle, Tom

    of the salary pool allocated to the faculty member's school for raises. Each annual performance evaluation for the annual performance evaluation of each faculty member within their departments. In the exceptional case of the College of Charleston will be evaluated annually on the basis of performance over the last calendar year

  9. Results of Teaching Evaluations Table 1. Overall results of teaching evaluations from coordinators and students

    E-Print Network [OSTI]

    Venturelli, Paul

    Results of Teaching Evaluations Table 1. Overall results of teaching evaluations from coordinators'). Evaluations were not available from all coordinators or courses in all years. Score out of 6 from School Course Year Coordinator Students U of A Organisms in Their Environment 2000 5.28 5.52 U of A Organisms

  10. Tin electroplating/stripping evaluation. Topical report

    SciTech Connect (OSTI)

    McHenry, M.R.

    1995-08-01

    An evaluation was conducted to determine possible replacement chemistries for electroplating and stripping of tin-lead. The driver for this project was two-fold. Our first goal dealt with hazardous waste reduction. It was desired to eliminate lead (a heavy metal) from the electroplating process and thiourea (a known carcinogen) from the stripping process. We also sought to reduce the cost of nonconformance (CONC) realized by this process in the form of rough plating, broken paths, poor solderability, and overetching. Three suppliers` tin chemistries were evaluated as replacements for electroplating and stripping of tin-lead. Based on preliminary testing, one chemistry was chosen, evaluated, and approved for production use.

  11. Evaluation of commercially available exterior digital VMDs

    SciTech Connect (OSTI)

    Ringler, C.E.; Hoover, C.E.

    1996-06-01

    This paper discusses the highlights from the full report, `Evaluation of Commercially Available Exterior Digital VMDs`, Charles E. Ringler, Chris E. Hoover, SAND94-2875, on the testing and evaluation of thirteen commercially available exterior digital video motion detection (VMD) systems. The systems were evaluated for use in a specific perimeter outdoor application. The full report focuses primarily on the testing parameters, each system`s advertised features, and the nuisance alarm and detection test results; this paper will summarize the nuisance alarm and detection test results and present some conclusions from the tests.

  12. Evaluation of ferrocyanide/nitrate explosive hazard

    SciTech Connect (OSTI)

    Cady, H.H.

    1992-06-01

    Los Alamos National Laboratory agreed to assist Pacific Northwest Laboratory in the Ferrocyanide Safety Evaluation Program by helping to evaluate the explosive hazard of several mixtures of simulated ferrocyanide waste-tank sludge containing sodium nitrite and sodium nitrate. This report is an evaluation of the small-scale safety tests used to assess the safety of these materials from an explosive point of view. These tests show that these materials are not initiated by mechanical insult, and they require an external heat source before any exothermic chemical reaction can be observed.

  13. MB3a Infrasound Sensor Evaluation.

    SciTech Connect (OSTI)

    Merchant, Bion J.; McDowell, Kyle D.

    2014-11-01

    Sandia National Laboratories has tested and evaluated a new infrasound sensor, the MB3a, manufactured by Seismo Wave. These infrasound sensors measure pressure output by a methodology developed by researchers at the French Alternative Energies and Atomic Energy Commission (CEA) and the technology was recently licensed to Seismo Wave for production and sales. The purpose of the infrasound sensor evaluation was to determine a measured sensitivity, transfer function, power, self-noise, dynamic range, seismic sensitivity, and self- calibration ability. The MB3a infrasound sensors are being evaluated for potential use in the International Monitoring System (IMS) of the Comprehensive Nuclear Test-Ban-Treaty Organization (CTBTO).

  14. Smith Newton Vehicle Performance Evaluation - Cumulative (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2014-08-01

    The Fleet Test and Evaluation Team at the U.S. Department of Energy's National Renewable Energy Laboratory is evaluating and documenting the performance of electric and plug-in hybrid electric drive systems in medium-duty trucks across the nation. U.S. companies participating in this evaluation project received funding from the American Recovery and Reinvestment Act to cover part of the cost of purchasing these vehicles. Through this project, Smith Electric Vehicles is building and deploying 500 all-electric medium-duty trucks that will be deployed by a variety of companies in diverse climates across the country.

  15. Energy Efficiency Program Impact Evaluation Guide

    Office of Energy Efficiency and Renewable Energy (EERE)

    This Energy Efficiency Program Impact Evaluation Guide describes and provides guidance on approaches for determining and documenting energy and non-energy benefits resulting from end-use energy efficiency programs and portfolios of programs.

  16. Analysis of the Employee Performance Evaluation System

    E-Print Network [OSTI]

    Mercado, Albert

    2005-07-29

    The employee performance evaluation system was developed with the thought of assisting management to effectively motivate and manage the actions of their employees. The system is deeply integrated within most companies and embraced by corporate...

  17. Construction and Evaluation of Actuarial Models Exam

    E-Print Network [OSTI]

    SOA USER

    2012-10-10

    The Construction and Evaluation of Actuarial Models exam is called Exam C by the SOA and. Exam 4 by the CAS. This three-and-a-half hour exam consists of ...

  18. Hawaii Renewable Hydrogen Program Policy Evaluation & Recommendations

    E-Print Network [OSTI]

    Hawaii Renewable Hydrogen Program Policy Evaluation & Recommendations Final Report August 2012 #12;Hawaii Renewable Hydrogen Program: Policy Recommendations 2 Project Title: Hawaii Renewable Hydrogen of Ocean and Earth Science and Technology ­ Hawaii Natural Energy Institute Award Number: Contract No

  19. Adjustable Speed Drive Power Quality Evaluation Program

    E-Print Network [OSTI]

    Strangas, Elias G.

    Unruh from Consumers Power provided technical guidance, while Ms. Heidi Muir from Demand Side Management and managed by Detroit Edi- son, Consumers Power and Drive manufacturers to evaluate the operational charac

  20. An Approach to Evaluating Equipment Efficiency Policies 

    E-Print Network [OSTI]

    Newsom, D. E.; Evans, A. R.

    1980-01-01

    The National Energy Conservation Policy Act of 1978 authorized studies of several types of industrial equipment to evaluate the technical and economic feasibility of labeling rules and minimum energy efficiency standards. An approach...

  1. Visualizing subjective decision criteria for system evaluation

    E-Print Network [OSTI]

    Coley, Jodyann Felicia

    2010-01-01

    The tools and methods used to evaluate complex systems in terms of human systems integration (HSI) include software, hardware, models, simulations, processes, and techniques. Hundreds of such tools currently exist to ...

  2. Performance Evaluation of Undulator Radiation at CEBAF

    SciTech Connect (OSTI)

    Chuyu Liu, Geoffrey Krafft, Guimei Wang

    2010-05-01

    The performance of undulator radiation (UR) at CEBAF with a 3.5 m helical undulator is evaluated and compared with APS undulator-A radiation in terms of brilliance, peak brilliance, spectral flux, flux density and intensity distribution.

  3. Annual Merit Review and Peer Evaluation Report

    SciTech Connect (OSTI)

    2012-03-16

    Each year, hydrogen and fuel cell projects funded by DOE's Hydrogen and Fuel Cells Program are reviewed for their merit during an Annual Merit Review and Peer Evaluation Meeting.

  4. Systematic approach for chemical reactivity evaluation 

    E-Print Network [OSTI]

    Aldeeb, Abdulrehman Ahmed

    2004-09-30

    incidents, and have harmed people, property, and the environment. Evaluation of reactive chemical hazards is critical to design and operate safer chemical plant processes. Much effort is needed for experimental techniques, mainly calorimetric analysis...

  5. 1.011 Project Evaluation, Spring 2003

    E-Print Network [OSTI]

    Martland, Carl D. (Carl Douglas)

    Methodologies for evaluating civil engineering projects, which typically are large-scale, long-lived projects involving many economic, financial, social, and environmental factors. Basic techniques of engineering economics, ...

  6. 1.011 Project Evaluation, Spring 2005

    E-Print Network [OSTI]

    Martland, Carl D.

    1.011 examines methodologies for evaluating civil engineering projects, which typically are large-scale, long-lived projects involving many economic, financial, social, and environmental factors. Topics covered include: ...

  7. DSpace and ETD-db Comparative Evaluation 

    E-Print Network [OSTI]

    Jones, Richard D

    2003-10-23

    We evaluated two open source packages with a view to using one for the creation of an online submission and archive system for Electronic Theses and Dissertations (ETDs) in the UK. These packages were the ETD-db written ...

  8. Objective methods for evaluating synthetic intonation. 

    E-Print Network [OSTI]

    Clark, Robert A J; Dusterhoff, Kurt E

    1999-01-01

    This paper describes the development and evaluation of objective methods for testing synthetic intonation. While subjective methods are available for assessing the quality of synthetic intonation, such tests consume ...

  9. Evaluation of alternative leachate liner materials 

    E-Print Network [OSTI]

    Biles, Daniel Franklin

    1994-01-01

    The purpose of this study is to evaluate alternative landfill liner materials that could be utilized in conjunction with current liners in order to improve the liner's performance by preventing the release of hazardous chemicals into the subsurface...

  10. Yosemite Waters Vehicle Evaluation Report: Final Results

    SciTech Connect (OSTI)

    Eudy, L.; Barnitt, R.; Alleman, T. L.

    2005-08-01

    Document details the evaluation of Fischer-Tropsch diesel, a gas-to-liquid fuel, in medium-duty delivery vehicles at Yosemite Waters. The study was conducted by NREL at the company's Fullerton, California, bottling headquarters.

  11. Energy Conservation Project Evaluation by Investment Equivalents 

    E-Print Network [OSTI]

    Larson, R. J.

    1984-01-01

    Using discounted cash flow techniques, a new parameter for the quick economic evaluation of energy conservation ideas is calculated. The meaning of the calculated value, an 'Investment Equivalent of Energy Saving', is: 'The maximum amount...

  12. Project evaluation : a practical asset pricing method

    E-Print Network [OSTI]

    Jacoby, Henry D.

    1992-01-01

    This paper presents a practical approach to project evaluation using techniques of modern financial economics, with a sample application to oil development under a complex tax system. The method overcomes shortcomings of ...

  13. An evaluation of enhanced geothermal systems technology

    SciTech Connect (OSTI)

    None, None

    2009-01-18

    A review of the assumptions and conclusions of the DOE-sponsored 2006 MIT study on "The Future of Geothermal Energy" and an evaluation of relevant technology from the commercial geothermal industry.

  14. Managing Milk Composition: Evaluating Herd Potential 

    E-Print Network [OSTI]

    Stokes, Sandra R.; Jordan, Ellen R.; Looper, Mike; Waldner, Dan

    2000-12-11

    : Evaluating Herd Potential Sandra R. Stokes, Dan N. Waldner, Ellen R. Jordan, and Michael L. Looper* * Respectively, Extension Dairy Specialist, The Texas A&M University System; Extension Dairy Specialist, Oklahoma State University; Ex- tension Dairy...

  15. Environmental Evaluation of Water Resources Development 

    E-Print Network [OSTI]

    James, W. P.; Woods, C. E.; Blanz, R. E.

    1976-01-01

    Methodology for the utilization of LANDSAT-1 imagery and aerial photography on the environmental evaluation of water resources development is presented. Environmental impact statements for water resource projects were collected and reviewed...

  16. Design and Evaluation of Alternative Cogeneration Systems 

    E-Print Network [OSTI]

    Mauro, R. L.; Hu, S. D.

    1982-01-01

    In the fall of 1973, the Electric Power Research Institute (EPRIY initiated a program for design and evaluation of alternate cogeneration systems. The primary objective of the study is to analyze the overall system (industry and utility) value...

  17. The Framing and Evaluation of Multiple Hypotheses

    E-Print Network [OSTI]

    Mock, Theodore J.; Wright, Arnold; Srivastava, Rajendra P.; Lu, Hai

    2008-01-01

    This study provides exploratory evidence on auditors’ framing and evaluation of hypotheses, identifies implications for improving audit decision-making and facilitates the interpretation of prior research. Prior studies ...

  18. Columbia River Component Data Evaluation Summary Report

    SciTech Connect (OSTI)

    C.S. Cearlock

    2006-08-02

    The purpose of the Columbia River Component Data Compilation and Evaluation task was to compile, review, and evaluate existing information for constituents that may have been released to the Columbia River due to Hanford Site operations. Through this effort an extensive compilation of information pertaining to Hanford Site-related contaminants released to the Columbia River has been completed for almost 965 km of the river.

  19. Smith Newton Vehicle Performance Evaluation (Brochure)

    SciTech Connect (OSTI)

    Not Available

    2012-08-01

    The Fleet Test and Evaluation Team at the U.S. Department of Energy's National Renewable Energy Laboratory is evaluating and documenting the performance of electric and plug-in hybrid electric drive systems in medium-duty trucks across the nation. Through this project, Smith Electric Vehicles will build and deploy 500 all-electric medium-duty trucks. The trucks will be deployed in diverse climates across the country.

  20. Laboratory performance evaluation reports for management

    SciTech Connect (OSTI)

    Lindahl, P.C.; Hensley, J.E.; Bass, D.A.; Johnson, P.L.; Marr, J.J.; Streets, W.E.; Warren, S.W.; Newberry, R.W.

    1995-05-01

    In support of the US DOE`s environmental restoration efforts, the Integrated Performance Evaluation Program (IPEP) was developed to produce laboratory performance evaluation reports for management. These reports will provide information necessary to allow DOE headquarters and field offices to determine whether or not contracted analytical laboratories have the capability to produce environmental data of the quality necessary for the remediation program. This document describes the management report.

  1. On the exact evaluation of spin networks

    SciTech Connect (OSTI)

    Freidel, Laurent; Hnybida, Jeff; Department of Physics, University of Waterloo, Waterloo, Ontario N2L 3G1

    2013-11-15

    We introduce a fully coherent spin network amplitude whose expansion generates all SU(2) spin networks associated with a given graph. We then give an explicit evaluation of this amplitude for an arbitrary graph. We show how this coherent amplitude can be obtained from the specialization of a generating functional obtained by the contraction of parametrized intertwiners à la Schwinger. We finally give the explicit evaluation of this generating functional for arbitrary graphs.

  2. 300 Area Building Retention Evaluation Mitigation Plan

    SciTech Connect (OSTI)

    D. J. McBride

    2007-07-03

    Evaluate the long-term retention of several facilities associated with the PNNL Capability Replacement Laboratory and other Hanfor mission needs. WCH prepared a mitigation plan for three scenarios with different release dates for specific buildings. The evaluations present a proposed plan for providing utility services to retained facilities in support of a long-term (+20 year) lifespan in addition to temporary services to buildings with specified delayed release dates.

  3. An Evaluation of Sensing Platforms Used for Sensor Network Research

    E-Print Network [OSTI]

    Kansas, University of

    An Evaluation of Sensing Platforms Used for Sensor Network Research Daniel T. Fokum, Dr. Victor S to complex sensor nodes; which include fully configured computers. Several of these platforms were evaluated ................................................................................................................. 2 3 Evaluation of Sensor Platforms

  4. Evaluation Tools Utilized by the EnergySmart Program | Department...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluation Tools Utilized by the EnergySmart Program Evaluation Tools Utilized by the EnergySmart Program Provides an overview of the evaluation tools used by EnergySmart program...

  5. Instructions on How to Complete The Performance Evaluation

    E-Print Network [OSTI]

    Subramanian, Venkat

    Instructions on How to Complete The Performance Evaluation All School of Engineering Performance Management Process documents can be accessed through the School of Engineering Human Resources webpage. PERFORMANCE EVALUATION TEMPLATE (SUPERVISORS) There are three main sections to the performance evaluation

  6. Data and Evaluation Kickoff Call | Department of Energy

    Energy Savers [EERE]

    and Evaluation Kickoff Call Data and Evaluation Kickoff Call Better Buildings Data and Evaluation Peer Exchange Kick-off Call to Discuss Key Topics for Peer- to -Peer Discussions,...

  7. Evaluation of pedestrian data collection methods within a simulation framework

    E-Print Network [OSTI]

    Bierlaire, Michel

    Evaluation of pedestrian data collection methods within a simulation framework Mamy Fetiarison Gunnar Flötteröd Michel Bierlaire STRC 2010 September 2010 #12;Evaluation of pedestrian data collection methods within a simulation framework September 2010 STRC 2010 Evaluation of pedestrian data collection

  8. DEPARTMENT OF AGRICULTURAL ECONOMICS Faculty Tenure and Promotion Evaluation Procedures

    E-Print Network [OSTI]

    Bermúdez, José Luis

    DEPARTMENT OF AGRICULTURAL ECONOMICS Faculty Tenure and Promotion Evaluation Procedures Revised............................................20 2 #12;DEPARTMENT OF AGRICULTURAL ECONOMICS Faculty Tenure and Promotion Evaluation Procedures November 2013 #12;Table of Contents I. The Evaluation Process

  9. Differential measurements selection for evaluation of telemedicine applications

    E-Print Network [OSTI]

    Oakley, Jeremy

    for developing methodological standards for economic evaluation. Our work aims to provide recommendation employment for economic evaluation and classes and specialties of telemedicine applications respectively. 3Differential measurements selection for evaluation of telemedicine applications Shuai Zhang, Sally

  10. Data and Evaluation Kickoff Call | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Data and Evaluation Kickoff Call Data and Evaluation Kickoff Call Better Buildings Data and Evaluation Peer Exchange Kick-off Call to Discuss Key Topics for Peer- to -Peer...

  11. Evaluation of nonaqueous processes for nuclear materials

    SciTech Connect (OSTI)

    Musgrave, B.C.; Grens, J.Z.; Knighton, J.B.; Coops, M.S.

    1983-12-01

    A working group was assigned the task of evaluating the status of nonaqueous processes for nuclear materials and the prospects for successful deployment of these technologies in the future. In the initial evaluation, the study was narrowed to the pyrochemical/pyrometallurgical processes closely related to the processes used for purification of plutonium and its conversion to metal. The status of the chemistry and process hardware were reviewed and the development needs in both chemistry and process equipment technology were evaluated. Finally, the requirements were established for successful deployment of this technology. The status of the technology was evaluated along three lines: (1) first the current applications were examined for completeness, (2) an attempt was made to construct closed-cycle flow sheets for several proposed applications, (3) and finally the status of technical development and future development needs for general applications were reviewed. By using these three evaluations, three different perspectives were constructed that together present a clear picture of how complete the technical development of these processes are.

  12. Evaluation plan for the Weatherization Assistance Program

    SciTech Connect (OSTI)

    Beschen, D.A. (USDOE, Washington, DC (United States)); Brown, M.A. (Oak Ridge National Lab., TN (United States))

    1991-08-01

    The most recent national evaluation of the impacts of the US Department of Energy (DOE)'s Weatherization Assistance Program (WAP) was completed in 1984 based on consumption data for households weatherized in 1981. WAP regulations and operations have changed substantially over the last decade, and new opportunities are on the horizon. DOE recognizes the need for a more current national level evaluation of the program and has developed a plan for conducting the evaluation with the support of the Oak Ridge National Laboratory (ORNL). The national WAP evaluation as currently proposed has seven major goals: (1) estimate the energy saved by the program -- one, two, and three years after participation; (2) assess nonenergy impacts, such as comfort, safety, and housing affordability; (3) assess program cost effectiveness; (4) analyze factors which influence energy savings, nonenergy impacts, and cost effectiveness; (5) describe the WAP network's capabilities and the innovative weatherization technologies and procedures it has employed; (6) characterize the WAP-eligible population and the federal and non-federal funds that haven been used to meet its weatherization needs; and, (7) identify promising WAP opportunities for the future. The data collection, analyses, and reports are to be completed in phases between 1991 and 1993. The evaluation methodologies vary by fuel type, housing type, and climate zone. The analysis of energy savings and cost effectiveness will be based primarily on weather-normalized, retrospective utility billing records (collected for pre- and postretrofit years). 12 refs., 8 figs.

  13. Evaluation of the Compressed Air Challenge Training Program:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Executive Summary Evaluation of the Compressed Air Challenge Training Program: Executive Summary This is the executive summary of a report on an evaluation of the Compressed Air...

  14. Evaluation of the Compressed Air Challenge Training Program:...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Final Report Evaluation of the Compressed Air Challenge Training Program: Final Report This is the final report on an evaluation of the Compressed Air Challenge (CAC) training...

  15. Ablation Casting Evaluation for High Volume Structural Castings...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Ablation Casting Evaluation for High Volume Structural Castings Ablation Casting Evaluation for High Volume Structural Castings 2012 DOE Hydrogen and Fuel Cells Program and Vehicle...

  16. Fault Tolerant Evaluation of Continuous Selection Queries over Sensor Data

    E-Print Network [OSTI]

    Lazaridis, Iosif; Han, Qi; Mehrotra, Sharad; Venkatasubramanian, Nalini

    2009-01-01

    Evaluation of Continuous Selection Queries over Sensor Dataevaluation of continuous selection queries (CSQs) over sensor-sensor suffices and there is no Fault Tolerant Evaluation of

  17. 1. INTRODUCTION. Evaluation of the geomechanical properties of

    E-Print Network [OSTI]

    Maerz, Norbert H.

    1. INTRODUCTION. Evaluation of the geomechanical properties of shales, especially weak ones acknowledgement of where and by whom the paper was presented. ABSTRACT: Evaluation of the geomechanical properties

  18. Evaluation of Monte Carlo Electron-Transport Algorithms in the...

    Office of Scientific and Technical Information (OSTI)

    Evaluation of Monte Carlo Electron-Transport Algorithms in the Integrated Tiger Series Codes for Stochastic-Media Simulations. Citation Details In-Document Search Title: Evaluation...

  19. Waste-Incidental-to-Reprocessing Evaluation for the West Valley...

    Office of Environmental Management (EM)

    Waste-Incidental-to-Reprocessing Evaluation for the West Valley Demonstration Project Vitrification Melter Waste-Incidental-to-Reprocessing Evaluation for the West Valley...

  20. Dynamometer Evaluation of Plasma-Catalyst for Diesel NOx Reduction...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Evaluation of Plasma-Catalyst for Diesel NOx Reduction Dynamometer Evaluation of Plasma-Catalyst for Diesel NOx Reduction 2003 DEER Conference Presentation: Ford Motor Company...