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Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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1

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...

2

Oil Bypass filter technology evaluation final report  

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

6-01355 6-01355 U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation Final Report TECHNICAL REPORT Larry Zirker James Francfort Jordan Fielding March 2006 Idaho National Laboratory Operated by Battelle Energy Alliance INL/EXT-06-01355 U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation Final Report Larry Zirker James Francfort Jordan Fielding March 2006 Idaho National Laboratory Transportation Technology Department Idaho Falls, Idaho 83415 Prepared for the U.S. Department of Energy Assistant Secretary for Energy Efficiency and Renewable Energy Under DOE Idaho Operations Office Contract DE-AC07-05ID14517

3

Evaluation of Oil Bypass Filter Technology on Heavy-Duty Vehicles  

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

(Advanced Vehicle Testing Activity) (Advanced Vehicle Testing Activity) Evaluation of Oil Bypass Filter Technology on Heavy-Duty Vehicles James Francfort American Filtration and Separations Society April 2005 Presentation Outline * Background & Objectives * Oil bypass filters - features & reported benefits * INL testing method * puraDYN oil bypass filters * Refined Global Solutions (RGS) oil bypass filters * Testing results & trends * Particulate and ferrography testing * Initial INL Oil Bypass Filter Economics * Potential fleet oil savings * Testing Status Bypass Filter Evaluation - Background * Funded by the U.S. Department of Energy's FreedomCAR & Vehicle Technologies Program (Advanced Vehicle Testing Activity) * Vehicles operated by Idaho National Laboratory's Fleet Operations group * Idaho National Laboratory

4

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

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

Demonstrated Petroleum Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology on Heavy and Light Vehicles James Francfort (PI) Timothy Murphy Larry Zirker Oil Bypass Filter Technology Evaluation * Funded by the U.S. Department of Energy's FreedomCAR & Vehicle Technologies Program * Performed by Idaho National Engineering and Environmental Laboratory (INEEL) Fleet Operations * Goal - Support DOE's efforts to reduce petroleum consumption & ensure the energy security of the United States Oil Bypass Filter Technology Evaluation * Objectives - Test the concept of using oil bypass filters to minimize engine oil changes & the generation of waste oils - Demonstration the economics of oil bypass filter systems - Estimate potential engine oil saving from bypass filter technologies that can be achieved by INEEL,

5

Oil Bypass Filter Technology Evaluation, Fourth Quarterly Report, July--September 2003  

SciTech Connect (OSTI)

This fourth Oil Bypass Filter Technology Evaluation report 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 FreedomCAR & Vehicle Technologies Program. Eight four-cycle diesel-engine buses used to transport INEEL employees on various routes have been 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. To date, the eight buses have accumulated 259,398 test miles. This represents an avoidance of 21 oil changes, which equates to 740 quarts (185 gallons) of oil not used or disposed of. To validate the extended oil-drain intervals, an oil-analysis regime evaluates the fitness of the oil for continued service by monitoring the presence of necessary additives, undesirable contaminants, and engine-wear metals. For bus 73450, higher values of iron have been reported, but the wear rate ratio (parts per million of iron per thousand miles driven) has remained consistent. In anticipation of also evaluating oil bypass systems on six Chevrolet Tahoe sport utility vehicles, the oil is being sampled on each of the Tahoes to develop a characterization history or baseline for each engine.

James E. Francfort; Larry Zirker

2003-11-01T23:59:59.000Z

6

Oil Bypass Filter Technology Evaluation Ninth Quarterly Report October–December 2004  

SciTech Connect (OSTI)

This Oil Bypass Filter Technology Evaluation quarterly report (October–December 2004) details the ongoing fleet evaluation of oil bypass filter technologies being conducted by the Idaho National Laboratory (INL; formerly Idaho National Engineering and Environmental Laboratory) for the U.S. Department of Energy’s FreedomCAR & Vehicle Technologies Program. Eight INL four-cycle diesel-engine buses used to transport INL employees on various routes and six INL Chevrolet Tahoes with gasoline engines are equipped with oil bypass filter systems from the puraDYN Corporation. This quarter, three additional buses were equipped with bypass filters from Refined Global Solutions. Oil bypass filters are reported to have an engine oil filtering capability of less than 1 micron. Both the puraDYN and Refined Global Solutions bypass filters have a heating chamber to remove liquid contaminate from the oil. During the quarter, the eleven diesel engine buses traveled 62,188 miles, and as of January 3, 2005 the buses had accumulated 643,036 total test miles. Two buses had their engine oil changed this quarter. In one bus, the oil was changed due to its degraded quality as determined by a low total base number (<3.0 mg KOH/g). The other bus had high oxidation and nitration numbers (>30.0 Abs/cm). Although a total of six buses have had their oil changed during the last 26 months, by using the oil bypass filters the buses in the evaluation avoided 48 oil changes, which equates to 1,680 quarts (420 gallons) of new oil not consumed and 1,680 quarts of waste oil not generated. Therefore, over 80% of the oil normally required for oil-changes was not used, and, consequently, the evaluation achieved over 80% reduction in the amount of waste oil normally generated. The six Tahoe test vehicles traveled 39,514 miles, and as of January 3, 2005 the Tahoes had accumulated 189,970 total test miles. The Tahoe filter test is in transition. To increase the rate of bypass filter oil flow on the Tahoes, puraDYN provided a larger orifice assembly, and these are being changed out as the Tahoes come in for regular service.

Larry Zirker; James Francfort; Jordan Fielding

2005-02-01T23:59:59.000Z

7

Oil Bypass Filter Technology Evaluation Eleventh Quarterly Report April- June 2005  

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

651 651 U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation Eleventh Quarterly Report April-June 2005 TECHNICAL REPORT Larry Zirker James Francfort Jordan Fielding September 2005 Idaho National Laboratory Operated by Battelle Energy Alliance INL/EXT-05-00651 U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation Eleventh Quarterly Report April-June 2005 Larry Zirker James Francfort Jordan Fielding September 2005 Idaho National Laboratory Transportation Technology Department Idaho Falls, Idaho 83415 Prepared for the U.S. Department of Energy Assistant Secretary for Energy Efficiency and Renewable Energy Under DOE Idaho Operations Office

8

U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation - Sixth Quarterly Report, January - March 2004  

SciTech Connect (OSTI)

This Oil Bypass Filter Technology Evaluation quarterly report (January-March 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 FreedomCAR & Vehicle Technologies Program. Eight four-cycle diesel-engine buses used to transport INEEL employees on various routes have been 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 heavy-duty buses traveled 88,747 miles, and as of the end of March 2004, the eight buses have accumulated 412,838 total test miles without requiring an oil change. This represents an avoidance of 34 oil changes, which equates to 1,199 quarts (300 gallons) of new oil not consumed and, furthermore, 1,199 quarts of waste oil not generated.

U.S. Department of Energy; Larry Zirker

2004-06-01T23:59:59.000Z

9

U.S. Department of Energy FreedomCAR & Vehicle Technologies Program Oil Bypass Filter Technology Evaluation Fifth Quarterly Report October - December 2003  

SciTech Connect (OSTI)

This Oil Bypass Filter Technology Evaluation quarterly report (October-December 2003) 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 FreedomCAR & Vehicle Technologies Program. Eight four-cycle diesel-engine buses used to transport INEEL employees on various routes have been 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. To date, the eight buses have accumulated 324,091 test miles. This represents an avoidance of 27 oil changes, which equate to 952 quarts (238 gallons) of new oil not conserved and therefore, 952 quarts of waste oil not generated. To validate the extended oil-drain intervals, an oil-analysis regime is used to evaluate the fitness of the oil for continued service by monitoring the presence of necessary additives, undesirable contaminants, and engine-wear metals. The test fleet has been expanded to include six Chevrolet Tahoe sport utility vehicles with gasoline engines.

Larry Zirker; James Francfort

2004-02-01T23:59:59.000Z

10

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

SciTech Connect (OSTI)

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.

Larry Zirker; James Francfort; Jordan Fielding

2004-08-01T23:59:59.000Z

11

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

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

Bypass Filter and Diesel Engine Idling Wear-Rate Evaluations Oil Bypass Filter and Diesel Engine Idling Wear-Rate Evaluations 2005 Diesel Engine Emissions Reduction (DEER)...

12

HVAC filter bypass modelling and experimental validation Jeffrey A. Siegel1,*  

E-Print Network [OSTI]

standards that address HVAC filtration efficacy including ASHRAE Standard 52.2 (ASHRAE, 2007) and EN 779HVAC filter bypass modelling and experimental validation Jeffrey A. Siegel1,* , David B. Chojnowski of filter bypass, an ASHRAE Standard 52.2-2007 compliant apparatus was modified to accept filters

Siegel, Jeffrey

13

2009 ASHRAE 199 The issue of filter bypass has long been a topic of much  

E-Print Network [OSTI]

©2009 ASHRAE 199 ABSTRACT The issue of filter bypass has long been a topic of much interest in the HVAC industry, but to date, there has been limited work that quantifies the effect of bypass. A matrix consisting of filters ranging from MERV 2 to MERV 14, different gap geometries, and gap sizes

Siegel, Jeffrey

14

Nuclear Filter Technology | Open Energy Information  

Open Energy Info (EERE)

Filter Technology Jump to: navigation, search Name: Nuclear Filter Technology Place: Golden, CO Information About Partnership with NREL Partnership with NREL Yes Partnership Type...

15

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

SciTech Connect (OSTI)

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.

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

2011-08-31T23:59:59.000Z

16

Bypassing the learning curve in permanent seed implants using state-of-the-art technology  

SciTech Connect (OSTI)

Purpose: The aim of this study was to demonstrate, based on clinical postplan dose distributions, that technology can be used efficiently to eliminate the learning curve associated with permanent seed implant planning and delivery. Methods and Materials: Dose distributions evaluated 30 days after the implant of the initial 22 consecutive patients treated with permanent seed implants at two institutions were studied. Institution 1 (I1) consisted of a new team, whereas institution 2 (I2) had performed more than 740 preplanned implantations over a 9-year period before the study. Both teams had adopted similar integrated systems based on three-dimensional (3D) transrectal ultrasonography, intraoperative dosimetry, and an automated seed delivery and needle retraction system (FIRST, Nucletron). Procedure time and dose volume histogram parameters such as D90, V100, V150, V200, and others were collected in the operating room and at 30 days postplan. Results: The average target coverage from the intraoperative plan (V100) was 99.4% for I1 and 99.9% for I2. D90, V150, and V200 were 191.4 Gy (196.3 Gy), 75.3% (73.0%), and 37.5% (34.1%) for I1 (I2) respectively. None of these parameters shows a significant difference between institutions. The postplan D90 was 151.2 Gy for I1 and 167.3 Gy for I2, well above the 140 Gy from the Stock et al. analysis, taking into account differences at planning, results in a p value of 0.0676. The procedure time required on average 174.4 min for I1 and 89 min for I2. The time was found to decrease with the increasing number of patients. Conclusion: State-of-the-art technology enables a new brachytherapy team to obtain excellent postplan dose distributions, similar to those achieved by an experienced team with proven long-term clinical results. The cost for bypassing the usual dosimetry learning curve is time, with increasing team experience resulting in shorter treatment times.

Beaulieu, Luc [Departement de Radio-oncologie, Centre Hospitalier Universitaire de Quebec, Hotel-Dieu de Quebec, Quebec, PQ (Canada)]. E-mail: beaulieu@phy.ulaval.ca; Evans, Dee-Ann Radford [Departments of Radiation Oncology and Medical Physics, Tom Baker Cancer Centre, Calgary, AB (Canada); Aubin, Sylviane [Departement de Radio-oncologie, Centre Hospitalier Universitaire de Quebec, Hotel-Dieu de Quebec, Quebec, PQ (Canada); Angyalfi, Steven [Departments of Radiation Oncology and Medical Physics, Tom Baker Cancer Centre, Calgary, AB (Canada); Husain, Siraj [Departments of Radiation Oncology and Medical Physics, Tom Baker Cancer Centre, Calgary, AB (Canada); Kay, Ian [Departments of Radiation Oncology and Medical Physics, Tom Baker Cancer Centre, Calgary, AB (Canada); Martin, Andre-Guy [Departement de Radio-oncologie, Centre Hospitalier Universitaire de Quebec, Hotel-Dieu de Quebec, Quebec, PQ (Canada); Varfalvy, Nicolas [Departement de Radio-oncologie, Centre Hospitalier Universitaire de Quebec, Hotel-Dieu de Quebec, Quebec, PQ (Canada); Vigneault, Eric [Departement de Radio-oncologie, Centre Hospitalier Universitaire de Quebec, Hotel-Dieu de Quebec, Quebec, PQ (Canada); Dunscombe, Peter [Departments of Radiation Oncology and Medical Physics, Tom Baker Cancer Centre, Calgary, AB (Canada)

2007-01-01T23:59:59.000Z

17

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

Broader source: Energy.gov [DOE]

2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Idaho National Engineering and Enviroonmental Laboratory

18

Virtual active filters for HVDC networks using V2G technology F.R. Islam  

E-Print Network [OSTI]

Virtual active filters for HVDC networks using V2G technology F.R. Islam , H.R. Pota School 23 July 2013 Keywords: Power system HVDC Active filter PHEV V2G a b s t r a c t Active and passive filters are essential to maintain the power quality of a HVDC link. In this paper the Vehicle to Grid (V2G

Pota, Himanshu Roy

19

V2G Technology for Designing Active Filter System to Improve Wind Power Quality  

E-Print Network [OSTI]

V2G Technology for Designing Active Filter System to Improve Wind Power Quality F. R. Islam, H. R factor correction and harmonics current compensation. Index Terms--PHEVs, V2G, Wind Power, Battery Scheme to design active filter is proposed here to improve the quality of wind power output. Harmonics is one

Pota, Himanshu Roy

20

Advanced Particulate Filter Technologies for Direct Injection Gasoline Engine Applications  

Broader source: Energy.gov [DOE]

Specific designs and material properties have to be developed for gasoline particulate filters based on the different engine and exhaust gas characteristic of gasoline engines compared to diesel engines, e.g., generally lower levels of engine-out particulate emissions or higher GDI exhaust gas temperatures

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Diesel Particulate Filter Technology for Low-Temperature and...  

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

DEER Conference, 2004 Sougato Chatterjee, Ray Conway, Satish Viswanathan, Todd Jacobs Johnson Matthey Catalysts Environmental Catalysts & Technologies Outline * Introduction * CRT...

22

Autonomous Correction of Sensor Data Applied to Building Technologies Using Filtering Methods  

SciTech Connect (OSTI)

Sensor data validity is extremely important in a number of applications, particularly building technologies where collected data are used to determine performance. An example of this is Oak Ridge National Laboratory s ZEBRAlliance research project, which consists of four single-family homes located in Oak Ridge, TN. The homes are outfitted with a total of 1,218 sensors to determine the performance of a variety of different technologies integrated within each home. Issues arise with such a large amount of sensors, such as missing or corrupt data. This paper aims to eliminate these problems using: (1) Kalman filtering and (2) linear prediction filtering techniques. Five types of data are the focus of this paper: (1) temperature; (2) humidity; (3) energy consumption; (4) pressure; and (5) airflow. Simulations show the Kalman filtering method performed best in predicting temperature, humidity, pressure, and airflow data, while the linear prediction filtering method performed best with energy consumption data.

Castello, Charles C [ORNL] [ORNL; New, Joshua Ryan [ORNL] [ORNL; Smith, Matt K [ORNL] [ORNL

2013-01-01T23:59:59.000Z

23

Autonomous Correction of Sensor Data Applied to Building Technologies Using Filtering Methods  

E-Print Network [OSTI]

and commercial buildings consume 41% of primary energy (72% electricity) used in the U.S. · Retrofitting inefficient buildings with new and innovative technologies that help to curb energy consumption will reduce filters. · Specifically, temperature, humidity, energy usage, pressure, and airflow sensor data is used

Wang, Xiaorui "Ray"

24

V-005: ModSecurity Multipart Message Parsing Security Bypass Vulnerability  

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

5: ModSecurity Multipart Message Parsing Security Bypass 5: ModSecurity Multipart Message Parsing Security Bypass Vulnerability V-005: ModSecurity Multipart Message Parsing Security Bypass Vulnerability October 18, 2012 - 6:00am Addthis PROBLEM: ModSecurity Multipart Message Parsing Security Bypass Vulnerability PLATFORM: Modsecurity Versions prior to 2.70 ABSTRACT: SEC Consult has reported a vulnerability in ModSecurity, which can be exploited by malicious people to bypass certain security restrictions REFERENCE LINKS: SEC Consult Secunia Advisory SA49853 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is caused due to an error when parsing multipart requests and can be exploited to bypass certain filtering rules. IMPACT: Remote Security Bypass SOLUTION: Update to version 2.70. Addthis Related Articles V-017: Apache Tomcat Security Bypass and Denial of Service Vulnerabilities

25

Bypass Flow Study  

SciTech Connect (OSTI)

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 use Particle Image Velocimetry (PIV) to measure the velocity fields that will populate the bypass flow study database.

Richard Schultz

2011-09-01T23:59:59.000Z

26

Features of technology of high-temperature superconductor films for microwave filters  

Science Journals Connector (OSTI)

The characteristics of fourth-order bandpass microwave filters based on high-temperature super-conductor (HTS) films have been numerically simulated and experimentally measured for the devices based on YBCO fi...

I. B. Vendik; O. G. Vendik; K. N. Zemlyakov; I. V. Kolmakova…

2011-05-01T23:59:59.000Z

27

Analysis of partial discharge detection in power cable by WTST-NST filter technology  

Science Journals Connector (OSTI)

The objectives of on-line monitoring are to prevent failures, reduce maintenance costs, and predict the life of the power system equipment. It is non-destructive and also cost-effective due to its ability to be applied when the equipments are in-service ... Keywords: MRD-MRR algorithm, adaptive WTST-NST filter, partial discharge, power cable, stationary noise interference

Hui Wang; Chengjun Huang; Junhua Liu; Linpeng Yao; Yong Qian; Xiuchen Jiang

2009-05-01T23:59:59.000Z

28

Autonomous Correction of Sensor Data Applied to Building Technologies Using Filtering Methods  

E-Print Network [OSTI]

, and airflow data, while the LPC method performed best with energy consumption data. Keywords--sensor systems inefficient buildings with new and innovative technologies that help to curb energy consumption will reduce Charles C. Castello1 and Joshua R. New2 Energy Transportation and Science Division Oak Ridge National

Wang, Xiaorui "Ray"

29

Particle loading rates for HVAC filters, heat exchangers, and ducts Nomenclature  

E-Print Network [OSTI]

Particle loading rates for HVAC filters, heat exchangers, and ducts Nomenclature Afl surface area of floor (m2 ) bf fraction of bypass flow around the filter (dimensionless) Cout outdoor concentration on the filter per volume of air (mg/lm m3 ) Mf,tot total mass deposited on the filter per month of operation (g

Siegel, Jeffrey

30

Interventions in Infrainguinal Bypass Grafts  

SciTech Connect (OSTI)

The interventional radiologist plays an important role in the detection and prevention of infrainguinal bypass failure. Early detection and evaluation of flow-limiting lesions effectively preserve graft (venous bypass and polyester or expanded polytetrafluoroethylene bypass) patency by identifying stenoses before occlusion occurs. Delay in treatment of the at-risk graft may result in graft failure and a reduced chance of successful revascularization. For this reason, surveillance protocols form an important part of follow-up after infrainguinal bypass surgery. As well as having an understanding of the application of imaging techniques including ultrasound, MR angiography, CT angiography and digital subtraction angiography, the interventional radiologist should have detailed knowledge of the minimally invasive therapeutic options. Percutaneous transluminal angioplasty (PTA), or alternatively cutting balloon angioplasty, is the interventional treatment of choice in prevention of graft failure and occlusion. Further alternatives include metallic stent placement, fibrinolysis, and mechanical thrombectomy. Primary assisted patency rates following PTA can be up to 65% at 5 years. When the endovascular approach is unsuccessful, these therapeutic options are complemented by surgical procedures including vein patch revision, jump grafting, or placement of a new graft.

Mueller-Huelsbeck, S., E-mail: muehue@rad.uni-kiel.de; Order, B.-M.; Jahnke, T. [University Hospital Schleswig-Holstein - Campus Kiel, Department of Radiology (Germany)

2006-02-15T23:59:59.000Z

31

Cordierite silicon nitride filters  

SciTech Connect (OSTI)

The objective of this project was to develop a silicon nitride based crossflow filter. This report summarizes the findings and results of the project. The project was phased with Phase I consisting of filter material development and crossflow filter design. Phase II involved filter manufacturing, filter testing under simulated conditions and reporting the results. In Phase I, Cordierite Silicon Nitride (CSN) was developed and tested for permeability and strength. Target values for each of these parameters were established early in the program. The values were met by the material development effort in Phase I. The crossflow filter design effort proceeded by developing a macroscopic design based on required surface area and estimated stresses. Then the thermal and pressure stresses were estimated using finite element analysis. In Phase II of this program, the filter manufacturing technique was developed, and the manufactured filters were tested. The technique developed involved press-bonding extruded tiles to form a filter, producing a monolithic filter after sintering. Filters manufactured using this technique were tested at Acurex and at the Westinghouse Science and Technology Center. The filters did not delaminate during testing and operated and high collection efficiency and good cleanability. Further development in areas of sintering and filter design is recommended.

Sawyer, J.; Buchan, B. (Acurex Environmental Corp., Mountain View, CA (United States)); Duiven, R.; Berger, M. (Aerotherm Corp., Mountain View, CA (United States)); Cleveland, J.; Ferri, J. (GTE Products Corp., Towanda, PA (United States))

1992-02-01T23:59:59.000Z

32

Method for measuring the effectiveness of gaseous-contaminant removal filters  

SciTech Connect (OSTI)

The report presents a brief review of the gas-adsorption kinetics theory applicable to adsorption of gaseous contaminants by filter media, and an algorithm for assessing the effectiveness of filtering devices with flow bypass. It briefly describes the selected testing technique for measuring the effectiveness of filter media, and presents experimental data for adsorption of n-butane, toluene, and carbon monoxide.

Mahajan, B.M.

1989-08-01T23:59:59.000Z

33

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

Office of Environmental Management (EM)

Module Security Bypass and Denial of Service Vulnerability U-162: Drupal Multiple Vulnerabilities V-052: Drupal Core Access Bypass and Arbitrary PHP Code Execution Vulnerabilities...

34

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

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

U-162: Drupal Multiple Vulnerabilities V-052: Drupal Core Access Bypass and Arbitrary PHP Code Execution Vulnerabilities V-216: Drupal Monster Menus Module Security Bypass and...

35

T-674: Drupal Secure Password Hashes Module Security Bypass Vulnerabil...  

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

or later. Addthis Related Articles V-052: Drupal Core Access Bypass and Arbitrary PHP Code Execution Vulnerabilities V-216: Drupal Monster Menus Module Security Bypass and...

36

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

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

RSA Authentication Agent Lets Remote Users Bypass Authentication Requirements March 4, 2013 - 12:27am Addthis PROBLEM: RSA Authentication Agent Lets Remote Users Bypass...

37

The Magnetic Centrifugal Mass Filter  

SciTech Connect (OSTI)

Mass filters using rotating plasmas have been considered for separating nuclear waste and spent nuclear fuel. We propose a new mass filter that utilizes centrifugal and magnetic confinement of ions in a way similar to the asymmetric centrifugal trap. This magnetic centrifugal mass filter is shown to be more proliferation resistant than present technology. This filter is collisional and produces well confined output streams, among other advantages. __________________________________________________

Abraham J. Fetterman and Nathaniel J. Fisch

2011-08-04T23:59:59.000Z

38

Disk filter  

DOE Patents [OSTI]

An electric disk filter provides a high efficiency at high temperature. A hollow outer filter of fibrous stainless steel forms the ground electrode. A refractory filter material is placed between the outer electrode and the inner electrically isolated high voltage electrode. Air flows through the outer filter surfaces through the electrified refractory filter media and between the high voltage electrodes and is removed from a space in the high voltage electrode.

Bergman, W.

1985-01-09T23:59:59.000Z

39

Method for optimizing output in ultrashort-pulse multipass laser amplifiers with selective use of a spectral filter  

DOE Patents [OSTI]

A method for optimizing multipass laser amplifier output utilizes a spectral filter in early passes but not in later passes. The pulses shift position slightly for each pass through the amplifier, and the filter is placed such that early passes intersect the filter while later passes bypass it. The filter position may be adjust offline in order to adjust the number of passes in each category. The filter may be optimized for use in a cryogenic amplifier.

Backus, Sterling J. (Erie, CO); Kapteyn, Henry C. (Boulder, CO)

2007-07-10T23:59:59.000Z

40

Bypass diode for a solar cell  

DOE Patents [OSTI]

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.

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

2012-03-13T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Occurrence of Pesticides in Water, Sediment, and Soil from the Yolo Bypass, California  

E-Print Network [OSTI]

water and sediment from Yolo Bypass, California, 2004-2005.L. 2002. California’s Yolo Bypass: Evidence that floodfish. KEYWORDS pesticides, Yolo Bypass, fish, surface water,

Smalling, Kelly L.; Orlando, James L.; Kuivila, Kathryn M.

2007-01-01T23:59:59.000Z

42

Spatial Frequency Filtering Using Nondelineated Thin Films  

Science Journals Connector (OSTI)

We present a new approach for achieving spatial frequency filtering in the analog domain. Our device, the Thin Film Spatial Filter, is a hybrid structure which combines the strengths of analog VLSI technology with the simplicity of a continuous sheet ...

J. Mcelvain; J. Langan; A. J. Heeger

1997-10-01T23:59:59.000Z

43

Filtering apparatus  

DOE Patents [OSTI]

A vertical vessel having a lower inlet and an upper outlet enclosure separated by a main horizontal tube sheet. The inlet enclosure receives the flue gas from a boiler of a power system and the outlet enclosure supplies cleaned gas to the turbines. The inlet enclosure contains a plurality of particulate-removing clusters, each having a plurality of filter units. Each filter unit includes a filter clean-gas chamber defined by a plate and a perforated auxiliary tube sheet with filter tubes suspended from each tube sheet and a tube connected to each chamber for passing cleaned gas to the outlet enclosure. The clusters are suspended from the main tube sheet with their filter units extending vertically and the filter tubes passing through the tube sheet and opening in the outlet enclosure. The flue gas is circulated about the outside surfaces of the filter tubes and the particulate is absorbed in the pores of the filter tubes. Pulses to clean the filter tubes are passed through their inner holes through tubes free of bends which are aligned with the tubes that pass the clean gas.

Haldipur, Gaurang B. (Monroeville, PA); Dilmore, William J. (Murrysville, PA)

1992-01-01T23:59:59.000Z

44

CLEERS Activities: Diesel Soot Filter Characterization & NOx...  

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

Control Fundamentals CLEERS Activities: Diesel Soot Filter Characterization & NOx Control Fundamentals 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit...

45

Toward Green Systems for Cleanrooms: Energy Efficient Fan-filter Units Ming-Shan Jeng, Industrial Technology Research Institute, msjeng@itri.org.tw  

E-Print Network [OSTI]

Toward Green Systems for Cleanrooms: Energy Efficient Fan-filter Units Ming-Shan Jeng, Industrial results of laboratory-measured performance of fan-filter units (FFUs) used for cleanrooms. A total for many cleanroom applications. ) 2004 Semiconductor Equipment and Materials International Keywords

46

Hoover Dam Bypass Project Phase II  

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

DOE/EA-1478 DOE/EA-1478 ENVIRONMENTAL ASSESSMENT Western' s Hoover Dam Bypass Project Phase II (Double-Circuiting a Portion of the Hoover-Mead #5 and #7 230-kV Transmission Lines with the Henderson-Mead #1 230-kV Transmission Line, Clark County, Nevada) Prepared for: U.S. Department of Energy Western Area Power Administration 615 S. 43 rd Avenue Phoenix, Arizona 85009 Prepared by: Transcon Environmental 3740 East Southern Avenue, Suite 218 Mesa, Arizona 85206 (480) 807-0095 October 2003 Western Area Power Administration Hoover Dam Bypass Project Phase II page i Environmental Assessment TABLE OF CONTENTS 1.0 INTRODUCTION ............................................................................................................................1 1.1 Background..................................................................................................................................1

47

Fleet test evaluation of fully formulated heavy-duty coolant technology maintained with a delayed-release filter compared with coolant inhibited with a nitrited organic acid technology: An interim report  

SciTech Connect (OSTI)

This paper is a controlled extended service interval (ESI) study of the comparative behaviors of a nitrite/borate/low-silicate, low total dissolved solids (TDS) coolant maintained with delayed-release filters, and an organic acid inhibited coolant technology in heavy-duty engines. It reports both laboratory and fleet test data from 66 trucks, powered with different makes of heavy-duty diesel engines. The engines were cooled with three different types of inhibitors and two different glycol base (ethylene glycol and propylene glycol) coolants for an initial period exceeding two years and 500,000 km (300,000 miles). The data reported include chemical depletion rates, periodic coolant chemical analyses, and engine/cooling system reliability experience. The ongoing test will continue for approximately five years and a 1.6 million km (1 million miles) duration. Thirteen trucks were retained as controls, operating with ASTM D 4985 specification (GM-6038 type) coolant maintained with a standard ASTM D 57542 supplemental coolant additive (SCA). Engines produced by Caterpillar, Detroit Diesel Corp., Cummins Engine Co., and Mack Trucks are included in the test mix.

Aroyan, S.S.; Eaton, E.R. [Penray Companies, Inc., Elk Grove Village, IL (United States). Technical Service

1999-08-01T23:59:59.000Z

48

Advances in Filter Miniaturization and Design/Analysis of RF MEMS Tunable Filters  

E-Print Network [OSTI]

-band filters, the use of cross-shaped fractals in half-mode substrate-integrated-waveguide bandpass filters resulted in a 37 percent size reduction. A compact bandpass filter that occupies an area of 0.315 mm2 is implemented in 90-nm CMOS technology for 20 GHz...

Sekar, Vikram

2012-10-19T23:59:59.000Z

49

Evaluation of HEPA filter service life  

SciTech Connect (OSTI)

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.

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

1997-07-14T23:59:59.000Z

50

U-246: Tigase XMPP Dialback Protection Bypass Vulnerability | Department of  

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

6: Tigase XMPP Dialback Protection Bypass Vulnerability 6: Tigase XMPP Dialback Protection Bypass Vulnerability U-246: Tigase XMPP Dialback Protection Bypass Vulnerability August 28, 2012 - 7:00am Addthis PROBLEM: Tigase XMPP Dialback Protection Bypass Vulnerability PLATFORM: Tigase 5.x ABSTRACT: A vulnerability has been reported in Tigase, which can be exploited by malicious people to bypass certain security restrictions. reference LINKS: XMPP Standards Foundation Secunia Advisory SA50362 tigase.org CVE-2012-4670 IMPACT ASSESSMENT: Medium Discussion: The vulnerability is caused due to an error within the XMPP protocol implementation, which does not properly verify the "Verify Response" and "Authorization Response" messages. This can be exploited to spoof a domain and bypass the Dialback protection.

51

Vehicle Technologies Office: Materials for Energy Recovery Systems...  

Energy Savers [EERE]

penalties associated with many emission control technologies. These technologies include diesel particulate filters, catalysts, filter substrates, and exhaust-gas recirculation...

52

Bypass Pigging of Subsea Pipelines Suffering Wax Deposition.  

E-Print Network [OSTI]

?? Which criteria to pay attention to is important when finding the optimal pigging frequency. This thesis illustrates the forces acting on a bypass pig… (more)

Galta, Tore

2014-01-01T23:59:59.000Z

53

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

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

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...

54

Cordierite silicon nitride filters. Final report  

SciTech Connect (OSTI)

The objective of this project was to develop a silicon nitride based crossflow filter. This report summarizes the findings and results of the project. The project was phased with Phase I consisting of filter material development and crossflow filter design. Phase II involved filter manufacturing, filter testing under simulated conditions and reporting the results. In Phase I, Cordierite Silicon Nitride (CSN) was developed and tested for permeability and strength. Target values for each of these parameters were established early in the program. The values were met by the material development effort in Phase I. The crossflow filter design effort proceeded by developing a macroscopic design based on required surface area and estimated stresses. Then the thermal and pressure stresses were estimated using finite element analysis. In Phase II of this program, the filter manufacturing technique was developed, and the manufactured filters were tested. The technique developed involved press-bonding extruded tiles to form a filter, producing a monolithic filter after sintering. Filters manufactured using this technique were tested at Acurex and at the Westinghouse Science and Technology Center. The filters did not delaminate during testing and operated and high collection efficiency and good cleanability. Further development in areas of sintering and filter design is recommended.

Sawyer, J.; Buchan, B. [Acurex Environmental Corp., Mountain View, CA (United States); Duiven, R.; Berger, M. [Aerotherm Corp., Mountain View, CA (United States); Cleveland, J.; Ferri, J. [GTE Products Corp., Towanda, PA (United States)

1992-02-01T23:59:59.000Z

55

Ceramic HEPA Filter Program  

SciTech Connect (OSTI)

Potential benefits of ceramic filters in nuclear facilities: (1) Short term benefit for DOE, NRC, and industry - (a) CalPoly HTTU provides unique testing capability to answer questions for DOE - High temperature testing of materials, components, filter, (b) Several DNFSB correspondences and presentations by DNFSB members have highlighted the need for HEPA filter R and D - DNFSB Recommendation 2009-2 highlighted a nuclear facility response to an evaluation basis earthquake followed by a fire (aka shake-n-bake) and CalPoly has capability for a shake-n-bake test; (2) Intermediate term benefit for DOE and industry - (a) Filtration for specialty applications, e.g., explosive applications at Nevada, (b) Spin-off technologies applicable to other commercial industries; and (3) Long term benefit for DOE, NRC, and industry - (a) Across industry, strong desire for better performance filter, (b) Engineering solution to safety problem will improve facility safety and decrease dependence on associated support systems, (c) Large potential life-cycle cost savings, and (d) Facilitates development and deployment of LLNL process innovations to allow continuous ventilation system operation during a fire.

Mitchell, M A; Bergman, W; Haslam, J; Brown, E P; Sawyer, S; Beaulieu, R; Althouse, P; Meike, A

2012-04-30T23:59:59.000Z

56

Bypass diode for a solar cell  

DOE Patents [OSTI]

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.

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

2013-11-12T23:59:59.000Z

57

V-052: Drupal Core Access Bypass and Arbitrary PHP Code Execution...  

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

2: Drupal Core Access Bypass and Arbitrary PHP Code Execution Vulnerabilities V-052: Drupal Core Access Bypass and Arbitrary PHP Code Execution Vulnerabilities December 21, 2012 -...

58

E-Print Network 3.0 - aortocoronary bypass surgery Sample Search...  

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

by- pass surgery versus a femoral-femoral bypass procedure. In addition... In Vivo Validation of Numerical Prediction of Blood Flow in Arterial Bypass Grafts JOY ... Source:...

59

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

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

6: Debian fex authentication bypass 6: Debian fex authentication bypass T-646: Debian fex authentication bypass June 14, 2011 - 3:45pm Addthis PROBLEM: The vulnerability is caused due to the application not properly verifying the existence 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 for transferring very large, files, is not properly validating authentication IDs. While the service properly validates existing authentication IDs, an attacker who is not specifying any authentication ID at all, can bypass the authentication procedure. reference LINKS: DSA-2259-1 fex Secunia Advisory SA44940 Debian Security Advisory DSA-2259-1 fex-20110610.tar Vulnerability Report: Debian GNU/Linux 6.0

60

T-674: Drupal Secure Password Hashes Module Security Bypass Vulnerability |  

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

74: Drupal Secure Password Hashes Module Security Bypass 74: Drupal Secure Password Hashes Module Security Bypass Vulnerability T-674: Drupal Secure Password Hashes Module Security Bypass Vulnerability July 22, 2011 - 3:00pm Addthis PROBLEM: Drupal Secure Password Hashes Module Security Bypass Vulnerability PLATFORM: Drupal Secure Password Hashes 6.X-1.0 Drupal Secure Password Hashes 5.X-1.4 ABSTRACT: The Secure Password Hashes module for Drupal is prone to a security-bypass vulnerability. reference LINKS: Drupal Homepage SA-CONTRIB-2011-026 - Secure Password Hashes (phpass) - Multiple Vulnerabilities IMPACT ASSESSMENT: Medium Discussion: This module uses the PHPass hashing library to try to store users hashed passwords securely. The module sets a fixed string for the 'pass' column in the {users} database column but does not replace the pass attribute of the account

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

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

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

V-237: TYPO3 Security Bypass Vulnerabilities V-237: TYPO3 Security Bypass Vulnerabilities V-237: TYPO3 Security Bypass Vulnerabilities September 9, 2013 - 6:00am Addthis PROBLEM: Some vulnerabilities have been reported in TYPO3 PLATFORM: TYPO3 6.x ABSTRACT: TYPO3 comes with the possibility to restrict editors to certain file actions (copy, delete, move etc.) and to restrict these actions to be performed in certain locations REFERENCE LINKS: Secunia Advisory SA54717 Security Focus ID 62257 IMPACT ASSESSMENT: Medium DISCUSSION: 1) Some errors when handling file actions can be exploited to bypass file action permission restrictions and e.g. create or read arbitrary files within or outside the webroot. 2) An error when validating file names within the file renaming functionality can be exploited to bypass the denied file extensions check

62

Technolog  

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

Research in Research in Science and Technolog y Sandia pushes frontiers of knowledge to meet the nation's needs, today and tomorrow Sandia National Laboratories' fundamental science and technology research leads to greater understanding of how and why things work and is intrinsic to technological advances. Basic research that challenges scientific assumptions enables the nation to push scientific boundaries. Innovations and breakthroughs produced at Sandia allow it to tackle critical issues, from maintaining the safety, security and effectiveness of the nation's nuclear weapons and preventing domestic and interna- tional terrorism to finding innovative clean energy solutions, develop- ing cutting-edge nanotechnology and moving the latest advances to the marketplace. Sandia's expertise includes:

63

CFD Analysis of Core Bypass Phenomena  

SciTech Connect (OSTI)

The U.S. Department of Energy is exploring the potential for the VHTR which will be either of a prismatic or a pebble-bed type. One important design consideration for the reactor core of a prismatic VHTR is coolant bypass flow which occurs in the interstitial regions between fuel blocks. Such gaps are an inherent presence in the reactor core because of tolerances in manufacturing the blocks and the inexact nature of their installation. Furthermore, the geometry of the graphite blocks changes over the lifetime of the reactor because of thermal expansion and irradiation damage. The existence of the gaps induces a flow bias in the fuel blocks and results in unexpected increase of maximum fuel temperature. Traditionally, simplified methods such as flow network calculations employing experimental correlations are used to estimate flow and temperature distributions in the core design. However, the distribution of temperature in the fuel pins and graphite blocks as well as coolant outlet temperatures are strongly coupled with the local heat generation rate within fuel blocks which is not uniformly distributed in the core. Hence, it is crucial to establish mechanistic based methods which can be applied to the reactor core thermal hydraulic design and safety analysis. Computational Fluid Dynamics (CFD) codes, which have a capability of local physics based simulation, are widely used in various industrial fields. This study investigates core bypass flow phenomena with the assistance of commercial CFD codes and establishes a baseline for evaluation methods. A one-twelfth sector of the hexagonal block surface is modeled and extruded down to whole core length of 10.704m. The computational domain is divided vertically with an upper reflector, a fuel section and a lower reflector. Each side of the sector grid can be set as a symmetry boundary

Richard W. Johnson; Hiroyuki Sato; Richard R. Schultz

2010-03-01T23:59:59.000Z

64

CFD Analysis of Core Bypass Phenomena  

SciTech Connect (OSTI)

The U.S. Department of Energy is exploring the potential for the VHTR which will be either of a prismatic or a pebble-bed type. One important design consideration for the reactor core of a prismatic VHTR is coolant bypass flow which occurs in the interstitial regions between fuel blocks. Such gaps are an inherent presence in the reactor core because of tolerances in manufacturing the blocks and the inexact nature of their installation. Furthermore, the geometry of the graphite blocks changes over the lifetime of the reactor because of thermal expansion and irradiation damage. The existence of the gaps induces a flow bias in the fuel blocks and results in unexpected increase of maximum fuel temperature. Traditionally, simplified methods such as flow network calculations employing experimental correlations are used to estimate flow and temperature distributions in the core design. However, the distribution of temperature in the fuel pins and graphite blocks as well as coolant outlet temperatures are strongly coupled with the local heat generation rate within fuel blocks which is not uniformly distributed in the core. Hence, it is crucial to establish mechanistic based methods which can be applied to the reactor core thermal hydraulic design and safety analysis. Computational Fluid Dynamics (CFD) codes, which have a capability of local physics based simulation, are widely used in various industrial fields. This study investigates core bypass flow phenomena with the assistance of commercial CFD codes and establishes a baseline for evaluation methods. A one-twelfth sector of the hexagonal block surface is modeled and extruded down to whole core length of 10.704m. The computational domain is divided vertically with an upper reflector, a fuel section and a lower reflector. Each side of the one-twelfth grid can be set as a symmetry boundary

Richard W. Johnson; Hiroyuki Sato; Richard R. Schultz

2009-11-01T23:59:59.000Z

65

New Cordierite Diesel Particulate Filters for Catalyzed and Non...  

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

RESEARCH CONFERENCE (DEER 2006) PRESENTATIONS Combination and Integration of DPF-SCR Aftertreatment Technologies Advanced High Porosity Ceramic Honeycomb Wall Flow Filters...

66

Filter systems for IGCC applications  

SciTech Connect (OSTI)

The objectives of this program were to identify metallic filter medium to be utilized in the Integrated Gasification Combined Cycle process (IGCC). In IGCC processes utilizing high efficiency desulfurizing technology, the traditional corrosion attack, sulfidation, is minimized so that metallic filters are viable alternatives over ceramic filters. Tampa Electric Company`s Polk Power Station is being developed to demonstrate Integrated Gasification Combined Cycle technology. The Pall Gas Solid Separation (GSS) System is a self cleaning filtration system designed to remove virtually all particulate matter from gas streams. The heart of the system is the filter medium used to collect the particles on the filter surface. The medium`s filtration efficiency, uniformity, permeability, voids volume, and surface characteristics are all important to establishing a permeable permanent cake. In-house laboratory blowback tests, using representative full scale system particulate, were used to confirm the medium selection for this project. Test elements constructed from six alloys were supplied for exposure tests: PSS 310SC (modified 310S alloy); PSS 310SC heat treated; PSS 310SC-high Cr; PSS 310SC-high Cr heat treated; PSS Hastelloy X; and PSS Hastelloy X heat treated.

Bevan, S.; Gieger, R.; Sobel, N.; Johnson, D.

1995-11-01T23:59:59.000Z

67

Gas Filter Testing Methods  

Science Journals Connector (OSTI)

Gas filtration of air in the cleanroom is carried out with HEPA (high- ... filter. The ambient air filters for the cleanroom are relatively fragile and require great care...

Alvin Lieberman

1992-01-01T23:59:59.000Z

68

V-106: Citrix Access Gateway Unspecified Security Bypass Vulnerability |  

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

6: Citrix Access Gateway Unspecified Security Bypass 6: Citrix Access Gateway Unspecified Security Bypass Vulnerability V-106: Citrix Access Gateway Unspecified Security Bypass Vulnerability March 7, 2013 - 6:00am Addthis PROBLEM: A vulnerability has been reported in Citrix Access Gateway PLATFORM: Standard Edition 5.0.x prior to 5.0.4.223524. Versions 4.5.x and 4.6.x are not affected by this vulnerability ABSTRACT: A vulnerability has been reported in Citrix Access Gateway, which can be exploited by malicious people to bypass certain security restrictions. REFERENCE LINKS: Secunia Advisory SA52479 Security Tracker Alert ID 1028255 com/id/1028255 CVE-2013-2263 Citrix Knowledge Center IMPACT ASSESSMENT: High DISCUSSION: The vulnerability could allow an unauthenticated user to gain access to network resources. IMPACT:

69

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

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

3: RSA Authentication Agent Lets Remote Users Bypass 3: RSA Authentication Agent Lets Remote Users Bypass Authentication Requirements V-103: RSA Authentication Agent Lets Remote Users Bypass Authentication Requirements March 4, 2013 - 12:27am Addthis PROBLEM: RSA Authentication Agent Lets Remote Users Bypass Authentication Requirements PLATFORM: RSA Authentication Agent 7.1, 7.1.1 for Microsoft Windows ABSTRACT: A vulnerability was reported in RSA Authentication Agent. REFERENCE LINKS: RSA SecurCare SecurityTracker Alert ID: 1028230 CVE-2013-0931 IMPACT ASSESSMENT: Medium DISCUSSION: On systems configured for Quick PIN Unlock, the system will request a PIN instead of a full Passcode when the session is activated from an active screensaver after the Quick PIN Unlock timeout has expired. RSA Authentication Agent on Windows Vista, Windows 7, Windows 2008, and

70

EA-1262: McKay Bypass Canal Extension, Golden, Colorado  

Broader source: Energy.gov [DOE]

This EA evaluates the environmental impacts for the proposal to extend the McKay Bypass Canal in order to route water from the existing Canal north of the Walnut Creek drainage on the east side of...

71

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

Energy Savers [EERE]

of thermal bypass air barriers, which led to their inclusion in ENERGY STAR for Homes Version 3 specifications in 2006 and then to inclusion in the 2009 IECC. Since...

72

Bypass flow computations on the LOFA transient in a VHTR  

SciTech Connect (OSTI)

Bypass flow in the prismatic gas-cooled very high temperature reactor (VHTR) is not intentionally designed to occur, but is present in the gaps between graphite blocks. Previous studies of the bypass flow in the core indicated that the cooling provided by flow in the bypass gaps had a significant effect on temperature and flow distributions for normal operating conditions. However, the flow and heat transports in the core are changed significantly after a Loss of Flow Accident (LOFA). This study aims to study the effect and role of the bypass flow after a LOFA in terms of the temperature and flow distributions and for the heat transport out of the core by natural convection of the coolant for a 1/12 symmetric section of the active core which is composed of images and mirror images of two sub-region models. The two sub-region models, 9 x 1/12 and 15 x 1/12 symmetric sectors of the active core, are employed as the CFD flow models using computational grid systems of 70.2 million and 117 million nodes, respectively. It is concluded that the effect of bypass flow is significant for the initial conditions and the beginning of LOFA, but the bypass flow has little effect after a long period of time in the transient computation of natural circulation.

Yu-Hsin Tung [National Tsing Hua Univ., Hsinchu (Taiwan). Inst. of Nuclear Engineering and Science; Richard W. Johnson [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Yuh-Ming Ferng [National Tsing Hua Univ., Hsinchu (Taiwan). Inst. of Nuclear Engineering and Science; Ching-Chang Chieng [City Univ. of Hong Kong, Kowloon (Hong Kong). Dept. of Mechanical and Biomedical Engineering

2014-01-01T23:59:59.000Z

73

Recirculating electric air filter  

DOE Patents [OSTI]

An electric air filter cartridge has a cylindrical inner high voltage electrode, a layer of filter material, and an outer ground electrode formed of a plurality of segments moveably connected together. The outer electrode can be easily opened to remove or insert filter material. Air flows through the two electrodes and the filter material and is exhausted from the center of the inner electrode.

Bergman, W.

1985-01-09T23:59:59.000Z

74

Hepa filter dissolution process  

DOE Patents [OSTI]

A process for dissolution of spent high efficiency particulate air (HEPA) filters and then combining the complexed filter solution with other radioactive wastes prior to calcining the mixed and blended waste feed. The process is an alternate to a prior method of acid leaching the spent filters which is an inefficient method of treating spent HEPA filters for disposal.

Brewer, Ken N. (Arco, ID); Murphy, James A. (Idaho Falls, ID)

1994-01-01T23:59:59.000Z

75

ELECTROSTATICALLY ENHANCED BARRIER FILTER COLLECTION  

SciTech Connect (OSTI)

This work was performed through the University of North Dakota (UND) Chemical Engineering Department with assistance from UND's Energy & Environmental Research Center. This research was undertaken in response to the U.S. Department of Energy Federal Technology Center Program Solicitation No. DE-PS26-99FT40479, Support of Advanced Coal Research at U.S. Universities and Colleges. Specifically, this research was in support of the UCR Core Program and addressees Topic 1, Improved Hot-Gas Contaminant and Particulate Removal Techniques, introducing an advanced design for particulate removal. Integrated gasification combined cycle (IGCC) offers the potential for very high efficiency and clean electric generation. In IGCC, the product gas from the gasifier needs to be cleaned of particulate matter to avoid erosion and high-temperature corrosion difficulties arising with the turbine blades. Current methods involve cooling the gases to {approx}100 C to condense alkalis and remove sulfur and particulates using conventional scrubber technology. This ''cool'' gas is then directed to a turbine for electric generation. While IGCC has the potential to reach efficiencies of over 50%, the current need to cool the product gas for cleaning prior to firing it in a turbine is keeping IGCC from reaching its full potential. The objective of the current project was to develop a highly reliable particulate collector system that can meet the most stringent turbine requirements and emission standards, can operate at temperatures above 1500 F, is applicable for use with all U.S. coals, is compatible with various sorbent injection schemes for sulfur and alkali control, can be integrated into a variety of configurations for both pressurized gasification and combustion, increases allowable face velocity to reduce filter system capital cost, and is cost-competitive with existing technologies. The collector being developed is a new concept in particulate control called electrostatically enhanced barrier filter collection (EBFC). This concept combines electrostatic precipitation (ESP) with candle filters in a single unit. Similar technology has been recently proven on a commercial scale for atmospheric applications, but needed to be tested at high temperatures and pressures. The synergy obtained by combining the two control technologies into a single system should actually reduce filter system capital and operating costs and make the system more reliable. More specifically, the ESP is expected to significantly reduce candle filter load and also to limit ash reintrainment, allowing for full recovery of baseline pressure drop during backpulsing of the filters.

John Erjavec; Michael D. Mann; Ryan Z. Knutson; Michael L. Swanson; Michael E. Collings

2003-06-01T23:59:59.000Z

76

Review of Diesel Emission Control Technology  

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

Diesel Emission Control Technology Tim Johnson August 2002 2 Outline * Introduction - Regulatory update and technology approaches * Ultrafines * Filters * NOx - LNC - SCR - LNT *...

77

Fail Save Shut Off Valve for Filtering Systems Employing Candle Filters  

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

Fail Save Shut Off Fail Save Shut Off Valve for Filtering Systems Employing Candle Filters Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking licensing partners interested in implementing United States Patent Number 6,981,516 entitled "Fail save shut off valve for filtering systems employing candle filters." Disclosed in this patent is a novel fail save shut off valve system that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over- pressurization. It is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system, the fail save valve stops the flow

78

Technology Transfer: Available Technologies  

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

test test Please refer to the list of technologies below for licensing and research collaboration availability. If you can't find the technology you're interested in, please contact us at TTD@lbl.gov. Energy ENERGY EFFICIENT TECHNOLOGIES Aerosol Sealing Aerosol Remote Sealing System Clog-free Atomizing and Spray Drying Nozzle Air-stable Nanomaterials for Efficient OLEDs Solvent Processed Nanotube Composites OLEDS with Air-stable Structured Electrodes APIs for Online Energy Saving Tools: Home Energy Saver and EnergyIQ Carbon Dioxide Capture at a Reduced Cost Dynamic Solar Glare Blocking System Electrochromic Device Controlled by Sunlight Electrochromic Windows with Multiple-Cavity Optical Bandpass Filter Electrochromic Window Technology Portfolio Universal Electrochromic Smart Window Coating

79

T-709:Mac OS X Keychain Certificate Settings Can Be Bypassed...  

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

09:Mac OS X Keychain Certificate Settings Can Be Bypassed By Remote Users T-709:Mac OS X Keychain Certificate Settings Can Be Bypassed By Remote Users September 2, 2011 - 12:00pm...

80

HYDROLOGY AND CHEMISTRY OF FLOODWATERS IN THE YOLO BYPASS, SACRAMENTO RIVER SYSTEM, CALIFORNIA, DURING 2000.  

E-Print Network [OSTI]

HYDROLOGY AND CHEMISTRY OF FLOODWATERS IN THE YOLO BYPASS, SACRAMENTO RIVER SYSTEM, CALIFORNIA..................................................1 Introduction..............................................2 Hydrology of the Yolo Bypass....................7 Dissolved Metals....................................10 Samples collected by boat in the Yolo

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Diesel particulate filters  

Science Journals Connector (OSTI)

Is the broad market introduction of diesel particulate filters throughout Europe wishful thinking or reality? The challenges facing the introduction of diesel particulate filters with a fuel-borne catalyst...

Pierre Macaudière; Laurent Rocher; Wolfgang Naschke

2004-04-01T23:59:59.000Z

82

Floodwater Chemistry in the Yolo Bypass during Winter and Spring 1998  

E-Print Network [OSTI]

Floodwater Chemistry in the Yolo Bypass during Winter and Spring 1998 Open-File Report 2007­1025 U.S. Department of the Interior U.S. Geological Survey #12;Floodwater Chemistry in the Yolo Bypass during Winter-USGS Suggested citation: Schemel, L.E., Cox, M.H., 2007, Floodwater Chemistry in the Yolo Bypass during Winter

83

Adaptive and Temporallydependent Document Filtering  

E-Print Network [OSTI]

Adaptive and Temporally­dependent Document Filtering een wetenschappelijke proeve op het gebied van . . . . . . . . . . . . . . . . . . . . . 1 1.2 Document Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Filtering Filtering Track 57 5.1 What is TREC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 5

Arampatzis, Avi

84

Cycling firing method for bypass operation of bridge converters  

SciTech Connect (OSTI)

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.

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

1982-01-01T23:59:59.000Z

85

U-061: RSA Adaptive Authentication Bugs Let Remote Users Bypass...  

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

Bugs Let Remote Users Bypass Certain Security Controls. PLATFORM: 6.0.2.1 SP1 Patch 2 and SP1 Patch 3 6.0.2.1 SP2 and SP2 Patch 1 6.0.2.1 SP3 ABSTRACT: A remote user may...

86

Filtering diesel exhaust gases with ceramic filters  

Science Journals Connector (OSTI)

Results are given from three test series on a ceramic filter for diesel exhausts. In the first and second series, use was made of diesel fuel (in the summer), while in...

A. Yu. Val’dberg; A. N. Tsedilin; T. O. Kosogorova…

2008-03-01T23:59:59.000Z

87

Evaluation of a Cyclone and Hot Gas Filter System  

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

a Cyclone and a Cyclone and Hot Gas Filter System Description The Wabash River Coal Gasification Plant uses an oxygen-blown E-Gas gasifier technology, owned by ConocoPhillips, which produces fuel gas containing significant amounts of fine particulates. Currently, particulates are cleaned from the fuel gas with metal candle filters. These filters require two costly plant shut-downs per year for cleaning or replacement. During the U.S Department of Energy-supported project

88

Moving granular-bed filter development program. Topical report  

SciTech Connect (OSTI)

Advanced, coal-based, power plants, such as IGCC and Advanced-PFBC, are currently nearing commercial demonstration. These power plant technologies require hot gas filtration as part of their gas cleaning trains. Ceramic barrier filters are the major filter candidates being developed for these hot gas cleaning applications. While ceramic barrier filters achieve high levels of particle removal, concerns exist for their reliability and operability in these applications. An alternative hot gas filtration technology is the moving granular bed filter. An advanced, moving granular bed filter has been conceived, and early development activities performed by the Westinghouse Electric Corporation, Science and Technology Center. This document reports on the Base Contract tasks performed to resolve the barrier technical issues for this technology. The concept, the Standleg Moving Granular Bed Filter (SMGBF) has a concurrent downward, gas and bed media flow configuration that results in simplified features and improved scaleup feasibility compared to alternative designs. Two modes of bed media operation were assessed in the program: once-through using pelletized power plant waste as bed media, and recycle of bed media via standleg and pneumatic transport techniques. Cold Model testing; high-temperature, high-pressure testing; and pelletization testing using advanced power plant wastes, have been conducted in the program. A commercial, economic assessment of the SMGBF technology was performed for IGCC and Advanced-PFBC applications. The evaluation shows that the barrier technical issues can be resolved, and that the technology is potentially competitive with ceramic barrier filters.

Newby, R.A.; Yang, W.C.; Smeltzer, E.E.; Lippert, T.E.

1994-04-01T23:59:59.000Z

89

Linear phase compressive filter  

DOE Patents [OSTI]

A phase linear filter for soliton suppression is in the form of a laddered series of stages of non-commensurate low pass filters with each low pass filter having a series coupled inductance (L) and a reverse biased, voltage dependent varactor diode, to ground which acts as a variable capacitance (C). L and C values are set to levels which correspond to a linear or conventional phase linear filter. Inductance is mapped directly from that of an equivalent nonlinear transmission line and capacitance is mapped from the linear case using a large signal equivalent of a nonlinear transmission line.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

90

Filter Replacement Activities Complete  

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

airflow levels now that both filter units are operational. Additionally, teams can resume entries to evaluate the condition of the underground facility and verify that...

91

Modeling Multi Output Filtering Effects in PCMOS  

E-Print Network [OSTI]

Modeling Multi Output Filtering Effects in PCMOS Anshul Singh*, Arindam Basu, Keck-Voon Ling, Nanyang Technological University (NTU), Singapore *NTU-Rice Institute of Sustainable and Applied Infodynamics (ISAID), NTU, Singapore $School of Computer Engineering, NTU, Singapore §School of ECE, Georgia

Mooney, Vincent

92

NISTIR 7516 Forensic Filtering of Cell  

E-Print Network [OSTI]

NISTIR 7516 Forensic Filtering of Cell Phone Protocols AurélienDelaitre WayneJansen #12;ii Forensic of Standards and Technology Interagency Report 42 pages (2008) iii #12;Abstract Phone managers are non-forensic managers are sometimes used by forensic investigators to recover data from a cell phone when no suitable

93

Evaluation of Alternative Filter Media for the Rotary Microfilter  

SciTech Connect (OSTI)

M. R. Poirier , D. T. Herman & R. Bhave (2012) Evaluation of Alternative Filter Media for the Rotary Microfilter, Separation Science and Technology, 47:14-15, 2108-2114

Poirier, M. [Savannah River National Laboratory, Environmental and Chemical Process Technology; Herman, [Savannah River National Laboratory, Environmental and Chemical Process Technology; Bhave, Ramesh R [ORNL

2012-01-01T23:59:59.000Z

94

V-057: eXtplorer "ext_find_user()" Authentication Bypass Vulnerability |  

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

V-057: eXtplorer "ext_find_user()" Authentication Bypass V-057: eXtplorer "ext_find_user()" Authentication Bypass Vulnerability V-057: eXtplorer "ext_find_user()" Authentication Bypass Vulnerability December 28, 2012 - 6:00am Addthis December 28 2012 - 6:00am PROBLEM: eXtplorer "ext_find_user()" Authentication Bypass Vulnerability PLATFORM: eXtplorer 2.x ABSTRACT: A vulnerability has been reported in eXtplorer, which can be exploited by malicious people to bypass certain security restrictions. REFERENCE LINKS: Secunia Advisory SA51636 eXtplorer 2.1.3 Security Release IMPACT ASSESSMENT: Medium DISCUSSION: eXtplorer was notified of a problem within the authentication system of eXtplorer Versions 2.1.2, 2.1.1, 2.1.0 and 2.1.0RC5 that have been found to be vulnerable to an authentication bypass bug.

95

U-234: Oracle MySQL User Login Security Bypass Vulnerability | Department  

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

234: Oracle MySQL User Login Security Bypass Vulnerability 234: Oracle MySQL User Login Security Bypass Vulnerability U-234: Oracle MySQL User Login Security Bypass Vulnerability August 14, 2012 - 7:00am Addthis PROBLEM: Oracle MySQL User Login Security Bypass Vulnerability PLATFORM: Version(s): prior to 5.1.63 and 5.5.25 are vulnerable. ABSTRACT: Oracle MySQL is prone to a security bypass vulnerability Attackers can exploit this issue to bypass certain security restrictions. REFERENCE LINKS: http://www.securityfocus.com/bid/53911/discuss CVE-2012-2122 IMPACT ASSESSMENT: Medium Discussion: Security researchers have released details about a vulnerability in the MySQL server that could allow potential attackers to access MySQL databases without inputting proper authentication credentials.The vulnerability is identified as CVE-2012-2122 and was addressed in MySQL 5.1.63 and 5.5.25 in

96

U-061: RSA Adaptive Authentication Bugs Let Remote Users Bypass Certain  

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

1: RSA Adaptive Authentication Bugs Let Remote Users Bypass 1: RSA Adaptive Authentication Bugs Let Remote Users Bypass Certain Security Controls U-061: RSA Adaptive Authentication Bugs Let Remote Users Bypass Certain Security Controls December 14, 2011 - 8:17am Addthis PROBLEM: RSA Adaptive Authentication Bugs Let Remote Users Bypass Certain Security Controls. PLATFORM: 6.0.2.1 SP1 Patch 2 and SP1 Patch 3 6.0.2.1 SP2 and SP2 Patch 1 6.0.2.1 SP3 ABSTRACT: A remote user may be able to bypass certain security controls. reference LINKS: SecurityTracker Alert ID: 1026420 Security Focus: ESA-2011-036 IMPACT ASSESSMENT: Medium Discussion: Two vulnerabilities were reported in RSA Adaptive Authentication (On-Premise). A remote user may be able to bypass certain security controls. A remote user can send specially crafted data elements to affect the Device

97

METAL FILTERS FOR PRESSURIZED FLUID BED COMBUSTION (PFBC) APPLICATIONS  

SciTech Connect (OSTI)

Advanced coal and biomass-based gas turbine power generation technologies (IGCC, PFBC, PCFBC, and Hipps) are currently under development and demonstration. Efforts at the Siemens Westinghouse Power Corporation (SWPC) have been focused on the development and demonstration of hot gas filter systems as an enabling technology for power generation. As part of the demonstration effort, SWPC has been actively involved in the development of advanced filter materials and component configuration, has participated in numerous surveillance programs characterizing the material properties and microstructure of field-tested filter elements, and has undertaken extended, accelerated filter life testing programs. This report reviews SWPC's material and component assessment efforts, identifying the performance, stability, and life of porous commercial metal, advanced alloy, and intermetallic filters under simulated, pressurized fluidized-bed combustion (PFBC) conditions.

M.A. Alvin

2004-01-02T23:59:59.000Z

98

E-Print Network 3.0 - aortocoronary bypass graft Sample Search...  

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

Materials Summary: . Holmes, Jr., and H. V. Schaff. Aortocoronary bypass grafting with expanded polytetrafluoroethylene: 12... , synthetic polymers currently used as artificial...

99

V-077: Barracuda SSL VPN Bug Lets Remote Users Bypass Authentication...  

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

property (via 'setSysProp.jsp') to bypass access restrictions and gain access to the API functionality. This can be exploited to download configuration files, download database...

100

E-Print Network 3.0 - artery bypass operations Sample Search...  

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

by intravenous delivery of salt and water. This route of delivery bypasses ... Source: Brand, Paul H. - Department of Physiology and Pharmacology, University of Toledo...

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Remotely serviced filter and housing  

DOE Patents [OSTI]

A filter system for a hot cell comprises a housing adapted for input of air or other gas to be filtered, flow of the air through a filter element, and exit of filtered air. The housing is tapered at the top to make it easy to insert a filter cartridge using an overhead crane. The filter cartridge holds the filter element while the air or other gas is passed through the filter element. Captive bolts in trunnion nuts are readily operated by electromechanical manipulators operating power wrenches to secure and release the filter cartridge. The filter cartridge is adapted to make it easy to change a filter element by using a master-slave manipulator at a shielded window station.

Ross, Maurice J. (Pocatello, ID); Zaladonis, Larry A. (Idaho Falls, ID)

1988-09-27T23:59:59.000Z

102

Hacks and Filters  

Science Journals Connector (OSTI)

In this chapter you have learned that hacks and filters can be an important weapon ... in any CSS developer’s arsenal. However, hacks need to be used sparingly, and preferably ... resort. If you do need to use hacks

2006-01-01T23:59:59.000Z

103

Sampled data lattice filters  

E-Print Network [OSTI]

SAMPLED DATA LATTICE FILTERS A Thesis by WILLIAM TERRY THRIFT III Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1979 Major Subfect...: Electrical Engineering SAMPLED DATA LATTICE FILTERS A Thesis by WILLIAM TERRY THRIFT III Approved as to style and content by: (Chair an of Committee) (Hea f Department) (Member) (Member) (Member) (Member) December 1979 ABSTRACT Sampled Data...

Thrift, William Terry

2012-06-07T23:59:59.000Z

104

Closure of 324 Facility potential HEPA filter failure unreviewed safety questions  

SciTech Connect (OSTI)

This document summarizes the activities which occurred to resolve an Unreviewed Safety Question (USQ) for the 324 Facility [Waste Technology Engineering Laboratory] involving Potential HEPA Filter Breach. The facility ventilation system had the capacity to fail the HEPA filters during accident conditions which would totally plug the filters. The ventilation system fans were modified which lowered fan operating parameters and prevented HEPA filter failures which might occur during accident conditions.

Enghusen, M.B.

1997-11-07T23:59:59.000Z

105

Kalman Filtering Jur van den Berg  

E-Print Network [OSTI]

Kalman Filtering Jur van den Berg #12;Kalman Filtering · (Optimal) estimation of the (hidden) state

van den Berg, Jur

106

Fuel Cell Technologies Overview  

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

States Energy Advisory Board (STEAB) States Energy Advisory Board (STEAB) Washington, DC Dr. Sunita Satyapal U.S. Department of Energy Fuel Cell Technologies Program Program Manager 3/14/2012 2 | Fuel Cell Technologies Program Source: US DOE 3/19/2013 eere.energy.gov * Introduction - Technology and Market Overview * DOE Program Overview - Mission & Structure - R&D Progress - Demonstration & Deployments * State Activities - Examples of potential opportunities Outline 3 | Fuel Cell Technologies Program Source: US DOE 3/19/2013 eere.energy.gov Fuel cells - convert chemical energy directly into electrical energy, bypassing inefficiencies associated with thermal energy conversion. Available energy is equal to the Gibbs free energy. Combustion Engines - convert chemical energy into thermal energy and

107

Remotely serviced filter and housing  

DOE Patents [OSTI]

A filter system for a hot cell comprises a housing adapted for input of air or other gas to be filtered, flow of the air through a filter element, and exit of filtered air. The housing is tapered at the top to make it easy to insert a filter cartridge holds the filter element while the air or other gas is passed through the filter element. Captive bolts in trunnion nuts are readily operated by electromechanical manipulators operating power wrenches to secure and release the filter cartridge. The filter cartridge is adapted to make it easy to change a filter element by using a master-slave manipulator at a shielded window station. 6 figs.

Ross, M.J.; Zaladonis, L.A.

1987-07-22T23:59:59.000Z

108

Filters for cathodic arc plasmas  

DOE Patents [OSTI]

Cathodic arc plasmas are contaminated with macroparticles. A variety of magnetic plasma filters has been used with various success in removing the macroparticles from the plasma. An open-architecture, bent solenoid filter, with additional field coils at the filter entrance and exit, improves macroparticle filtering. In particular, a double-bent filter that is twisted out of plane forms a very compact and efficient filter. The coil turns further have a flat cross-section to promote macroparticle reflection out of the filter volume. An output conditioning system formed of an expander coil, a straightener coil, and a homogenizer, may be used with the magnetic filter for expanding the filtered plasma beam to cover a larger area of the target. A cathodic arc plasma deposition system using this filter can be used for the deposition of ultrathin amorphous hard carbon (a-C) films for the magnetic storage industry.

Anders, Andre (Albany, CA); MacGill, Robert A. (Richmond, CA); Bilek, Marcela M. M. (Engadine, AU); Brown, Ian G. (Berkeley, CA)

2002-01-01T23:59:59.000Z

109

Chlamydial DNA polymerase I can bypass lesions in vitro  

SciTech Connect (OSTI)

We found that DNA polymerase I from Chlamydiophila pneumoniae AR39 (CpDNApolI) presents DNA-dependent DNA polymerase activity, but has no detectable 3' exonuclease activity. CpDNApolI-dependent DNA synthesis was performed using DNA templates carrying different lesions. DNAs containing 2'-deoxyuridine (dU), 2'-deoxyinosine (dI) or 2'-deoxy-8-oxo-guanosine (8-oxo-dG) served as templates as effectively as unmodified DNAs for CpDNApolI. Furthermore, the CpDNApolI could bypass natural apurinic/apyrimidinic sites (AP sites), deoxyribose (dR), and synthetic AP site tetrahydrofuran (THF). CpDNApolI could incorporate any dNMPs opposite both of dR and THF with the preference to dAMP-residue. CpDNApolI preferentially extended primer with 3'-dAMP opposite dR during DNA synthesis, however all four primers with various 3'-end nucleosides (dA, dT, dC, and dG) opposite THF could be extended by CpDNApolI. Efficiently bypassing of AP sites by CpDNApolI was hypothetically attributed to lack of 3' exonuclease activity.

Liu Xipeng [College of Life Sciences and Technology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240 (China); Hou Jingli [College of Life Sciences and Technology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240 (China); Liu Jianhua [College of Life Sciences and Technology, Shanghai Jiaotong University, 800 Dongchuan Road, Shanghai 200240 (China)]. E-mail: jianhualiudl@sjtu.edu.cn

2006-07-07T23:59:59.000Z

110

V-052: Drupal Core Access Bypass and Arbitrary PHP Code Execution  

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

52: Drupal Core Access Bypass and Arbitrary PHP Code Execution 52: Drupal Core Access Bypass and Arbitrary PHP Code Execution Vulnerabilities V-052: Drupal Core Access Bypass and Arbitrary PHP Code Execution Vulnerabilities December 21, 2012 - 12:15am Addthis PROBLEM: Drupal Core Access Bypass and Arbitrary PHP Code Execution Vulnerabilities PLATFORM: Drupal 6.x versions prior to 6.27 Drupal 7.x versions prior to 7.18 ABSTRACT: Drupal Core Multiple vulnerabilities REFERENCE LINKS: SA-CORE-2012-004 - Drupal core Bugtraq ID: 56993 Secunia Advisory SA51517 CVE-2012-5651 CVE-2012-5652 CVE-2012-5653 IMPACT ASSESSMENT: Medium DISCUSSION: An attacker can exploit these issues to execute arbitrary PHP code within the context of the web server, bypass certain security restrictions, and perform unauthorized actions; this may aid in launching further attacks.

111

V-017: Apache Tomcat Security Bypass and Denial of Service Vulnerabilities  

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

7: Apache Tomcat Security Bypass and Denial of Service 7: Apache Tomcat Security Bypass and Denial of Service Vulnerabilities V-017: Apache Tomcat Security Bypass and Denial of Service Vulnerabilities November 6, 2012 - 6:00am Addthis PROBLEM: Apache Tomcat Security Bypass and Denial of Service Vulnerabilities PLATFORM: Apache Tomcat 5.x Apache Tomcat 6.x Apache Tomcat 7.x ABSTRACT: Two vulnerabilities were reported in Apache Tomcat REFERENCE LINKS: Apache.org Apache Tomcat Denial of Service Apache Tomcat DIGEST authentication weaknesses Secunia Advisory SA51138 CVE-2012-2733 CVE-2012-3439 IMPACT ASSESSMENT: Medium DISCUSSION: A weakness and a vulnerability have been reported in Apache Tomcat, which can be exploited by malicious people to bypass certain security restrictions and cause a DoS (Denial of Service). 1) An error within the "parseHeaders()" function

112

V-186: Drupal Login Security Module Security Bypass and Denial of Service  

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

6: Drupal Login Security Module Security Bypass and Denial of 6: Drupal Login Security Module Security Bypass and Denial of Service Vulnerability V-186: Drupal Login Security Module Security Bypass and Denial of Service Vulnerability June 26, 2013 - 1:28am Addthis PROBLEM: Drupal Login Security Module Security Bypass and Denial of Service Vulnerability PLATFORM: Login Security 6.x-1.x versions prior to 6.x-1.2. Login Security 7.x-1.x versions prior to 7.x-1.2. ABSTRACT: A security issue and a vulnerability have been reported in the Login Security module for Drupal REFERENCE LINKS: Advisory ID: DRUPAL-SA-CONTRIB-2013-053 Secunia Advisory SA53717 CVE-2013-2197 CVE-2013-2198 IMPACT ASSESSMENT: Medium DISCUSSION: 1) The security issue is caused due to an unspecified error and can be exploited to bypass the module features. Successful exploitation requires the "soft blocking" feature to be

113

V-040: Apache Tomcat Bug Lets Remote Users Bypass Security Constraints |  

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

0: Apache Tomcat Bug Lets Remote Users Bypass Security 0: Apache Tomcat Bug Lets Remote Users Bypass Security Constraints V-040: Apache Tomcat Bug Lets Remote Users Bypass Security Constraints December 5, 2012 - 1:00am Addthis PROBLEM: Apache Tomcat Bug Lets Remote Users Bypass Security Constraints PLATFORM: Version(s): 6.0.0 - 6.0.35, 7.0.0 - 7.0.29 ABSTRACT: A vulnerability was reported in Apache Tomcat. REFERENCE LINKS: Apache Tomcat Red Hat Bugzilla - Bug 883634 SecurityTracker Alert ID: 1027833 CVE-2012-3546 IMPACT ASSESSMENT: High DISCUSSION: When using FORM authentication it was possible to bypass the security constraint checks in the FORM authenticator by appending /j_security_check to the end of the URL if some other component (such as the Single-Sign-On valve) had called request.setUserPrincipal() before the call to

114

T-707: Apache Tomcat AJP Protocol Processing Bug Lets Remote Users Bypass  

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

7: Apache Tomcat AJP Protocol Processing Bug Lets Remote Users 7: Apache Tomcat AJP Protocol Processing Bug Lets Remote Users Bypass Authentication or Obtain Information T-707: Apache Tomcat AJP Protocol Processing Bug Lets Remote Users Bypass Authentication or Obtain Information August 31, 2011 - 12:00pm Addthis PROBLEM: A vulnerability was reported in Apache Tomcat. A remote user can bypass authentication or obtain potentially sensitive information. PLATFORM: Apache Tomcat 5.5.0 to 5.5.33, 6.0.0 to 6.0.33, 7.0.0 to 7.0.20 ABSTRACT: Apache Tomcat AJP protocol processing bug lets remote users bypass authentication or obtain information. reference LINKS: SecurityTracker Alert ID: 1025993 CVE-2011-3190 (under review) Apache Tomcat Security Updates IMPACT ASSESSMENT: Medium Discussion: A vulnerability was reported in Apache Tomcat. A remote user can bypass

115

V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability  

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

6: MediaWiki CentralAuth Extension Authentication Bypass 6: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability V-236: MediaWiki CentralAuth Extension Authentication Bypass Vulnerability September 6, 2013 - 4:36am Addthis PROBLEM: A vulnerability has been reported in the CentralAuth extension for MediaWiki, which can be exploited by malicious people to bypass certain security restrictions. PLATFORM: MediaWiki CentralAuth Extension ABSTRACT: A vulnerability has been reported in the CentralAuth extension for MediaWik REFERENCE LINKS: Secunia Advisory SA54723 IMPACT ASSESSMENT: Medium DISCUSSION: The vulnerability is caused due to an error when handling auto-logins and can be exploited to bypass the authentication mechanism by providing a valid username within the "centralauth_User" cookie. IMPACT:

116

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

DOE Patents [OSTI]

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.

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

2014-04-01T23:59:59.000Z

117

Ten Years of Development Experience with Advanced Light Truck...  

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

for Control of PM from Diesel Backup Generators Demonstrated Petroleum Reduction Using Oil Bypass Filter Technology on Heavy and Light Vehicles Transportation Fuels: The Future...

118

High Efficiency Particulate Air Filters  

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

High Efficiency Particulate Air (HEPA) Filters High Efficiency Particulate Air (HEPA) Filters Home Standards DOE Workshops Nuclear Air Cleaning Conference Proceedings Qualified Filter List News Items Related Sites HEPA Related Lessons Learned Contact Us HSS Logo High Efficiency Particulate Air Filters The HEPA Filter web site provides a forum for informing and reporting department-wide activities related to filtration and ventilation issues with special reference to the High Efficiency Particulate Air (HEPA) Filters' use, inspection, and testing. This site contains essentials of DOE HEPA filter test program, procedures, requirements and quality assurance aspects applicable to HEPA filters used in DOE facilities. This site contains information about the DOE-accepted Filter Test Facility and its management, operation and quality assuranceprogram.

119

NETL: Gasification - Long-Term Candle Filter Tests  

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

Long-Term Candle Filter Tests Long-Term Candle Filter Tests National Carbon Capture Center at the Power Systems Development Facility Southern Company Services, Inc. Project Number: NT0000749 Project Description The National Carbon Capture Center advancement of hot gas filtration technology provides the design for optimal, long-term evaluation of material performance for particulate control device (PCD) filter elements. Testing is performed using the commercially available Siemens PCD, due to its demonstrated excellent collection efficiency during normal operation. The PCD, located downstream of the primary gas cooler, houses up to 91 candle-type filter elements. They're currently used in the development of candle filters that can efficiently remove particulates at varying temperatures, using low-cost materials and innovative design.

120

METAL MEDIA FILTERS, AG-1 SECTION FI  

SciTech Connect (OSTI)

One application of metal media filters is in various nuclear air cleaning processes including applications for protecting workers, the public and the environment from hazardous and radioactive particles. To support this application the development of the ASME AG-1 FI Standard on Metal Media has been under way for more than ten years. Development of the proposed section has required resolving several difficult issues associated with operating conditions (media velocity, pressure drop, etc.), qualification testing, and quality acceptance testing. Performance characteristics of metal media are dramatically different than the glass fiber media with respect to parameters like differential pressures, operating temperatures, media strength, etc. These differences make existing data for a glass fiber media inadequate for qualifying a metal media filter for AG-1. In the past much work has been conducted on metal media filters at facilities such as Lawrence Livermore National Laboratory (LLNL) and Savannah River National Laboratory (SRNL) to qualify the media as High Efficiency Particulate Air (HEPA) Filters. Particle retention testing has been conducted at Oak Ridge Filter Test Facility and at Air Techniques International (ATI) to prove that the metal media meets or exceeds the 99.97% particle retention required for a HEPA Filter. Even with his testing, data was lacking to complete an AG-1 FI Standard on metal media. With funding secured by Mississippi State University (MSU) from National Nuclear Security Administration (NNSA), a research test stand is being designed and fabricated at MSU's Institute for Clean Energy Technology (ICET) Facility to obtain qualification data on metal media. This in turn will support required data needed for the FI Standard. The paper will discuss in detail how the test stand at MSU will obtain the necessary data to complete the FI Standard.

Adamson, D.

2012-05-23T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Rotating drum filter  

DOE Patents [OSTI]

A perforated drum (10) rotates in a coaxial cylindrical housing (18) having three circumferential ports (19,22,23), and an axial outlet (24) at one end. The axis (11) is horizontal. A fibrous filter medium (20) is fed through a port (19) on or near the top of the housing (81) by a distributing mechanism (36) which lays a uniform mat (26) of the desired thickness onto the rotating drum (10). This mat (26) is carried by the drum (10) to a second port (23) through which dirty fluid (13) enters. The fluid (13) passes through the filter (26) and the cleaned stream (16) exits through the open end (15) of the drum (10) and the axial port (24) in the housing (18). The dirty filter material (20) is carried on to a third port (22) near the bottom of the housing (18) and drops into a receiver (31) from which it is continuously removed, cleaned (30), and returned (32) to the charging port (36) at the top. To support the filter mat, the perforated cylinder may carry a series of tines (40), shaped blades (41), or pockets, so that the mat (26) will not fall from the drum (10) prematurely. To minimize risk of mat failure, the fluid inlet port (23) may be located above the horizontal centerline (11).

Anson, Donald (Worthington, OH)

1990-01-01T23:59:59.000Z

122

Ozone decomposing filter  

DOE Patents [OSTI]

In an improved ozone decomposing air filter carbon fibers are held together with a carbonized binder in a perforated structure. The structure is made by combining rayon fibers with gelatin, forming the mixture in a mold, freeze-drying, and vacuum baking.

Simandl, Ronald F. (Farragut, TN); Brown, John D. (Harriman, TN); Whinnery, Jr., LeRoy L. (Dublin, CA)

1999-01-01T23:59:59.000Z

123

DEVELOPMENT OF AN ADHESIVE CANDLE FILTER SAFEGUARD DEVICE  

SciTech Connect (OSTI)

In order to reach the highest possible efficiencies in a coal-fired turbine-based power system, the turbine should be directly fired with the products of coal conversion. Two main types of systems employ these turbines: those based on pressurized fluidized-bed combustors and those based on integrated gasification combined cycles. In both systems, suspended particulates must be cleaned from the gas stream before it enters the turbine so as to prevent fouling and erosion of the turbine blades. To produce the cleanest gas, barrier filters are being developed and are in use in several facilities. Barrier filters are composed of porous, high-temperature materials that allow the hot gas to pass but collect the particulates on the surface. The three main configurations of the barrier filters are candle, cross-flow, and tube filters. Both candle and tube filters have been tested extensively. They are composed of coarsely porous ceramic that serves as a structural support, overlain with a thin, microporous ceramic layer on the dirty gas side that serves as the primary filter surface. They are highly efficient at removing particulate matter from the gas stream and, because of their ceramic construction, are resistant to gas and ash corrosion. However, ceramics are brittle and individual elements can fail, allowing particulates to pass through the hole left by the filter element and erode the turbine. Preventing all failure of individual ceramic filter elements is not possible at the present state of development of the technology. Therefore, safeguard devices (SGDs) must be employed to prevent the particulates streaming through occasional broken filters from reaching the turbine. However, the SGD must allow for the free passage of gas when it is not activated. Upon breaking of a filter, the SGD must either mechanically close or quickly plug with filter dust to prevent additional dust from reaching the turbine. Production of a dependable rapidly closing autonomous mechanical device at high temperatures in a dusty gas stream is difficult because of problems with materials corrosion, dust leakage, and detection of filter failure. Therefore, the Energy & Environmental Research Center is using its knowledge of the factors that make filter dust sticky at gas filtration temperatures to make a simple and inexpensive SGD that employs an adhesive yet thermodynamically stable coating on a highly porous ceramic substrate. The SGDs are placed on top of individual candle filters at the filtered gas exit. Upon failure of the filter, the dirty gas flows through the SGD where the adhesive surface rapidly and permanently traps dust particles, causing the device to plug and prevent the dust from reaching the turbine.

John P. Hurley; Ann K. Henderson; Jan W. Nowok; Michael L. Swanson

2002-01-01T23:59:59.000Z

124

Pre-test CFD Calculations for a Bypass Flow Standard Problem  

SciTech Connect (OSTI)

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.

Rich Johnson

2011-11-01T23:59:59.000Z

125

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

SciTech Connect (OSTI)

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.

Sullivan, T.J.

1986-05-01T23:59:59.000Z

126

Nuclear Spin Filter  

Science Journals Connector (OSTI)

A "spin filter" for selecting metastable hydrogen, deuterium, or tritium atoms with a given nuclear spin magnetic quantum number (mI) has been built and tested. With the device installed in the Los Alamos "Lamb-shift" polarized-ion source, we have obtained a deuterium negative-ion beam with ? 55% spin-state purity for mI=1, 0, or -1. An improved magnetic field homogeneity in the apparatus is expected to increase the purity to ? 75%.

Joseph L. McKibben; George P. Lawrence; Gerald G. Ohlsen

1968-05-20T23:59:59.000Z

127

Filter Press Building  

E-Print Network [OSTI]

"FILTER PRESS BUILDING" AVON LAKE WATER POLLUTION CONTROL CENTER HEAT PUMP HEATING AND COOLING SYSTEM William M. Bush, P.E. The Cleveland Electric Illuminating Company Cleveland, Ohio ABSTRACT The high heat value of the plant's treated wa..." of the thousands of homes in the com munity, we were able to recommend a system of heat recovery refrigeration cycles that would provide space conditioning at a fraction of the cost of natural gas. The all-electric recommendation was accepted because...

Bush, W. M.

128

Electrically-Assisted Diesel Particulate Filter Regeneration...  

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

More Documents & Publications Substrate Studies of an Electrically-Assisted Diesel Particulate Filter Electrically-Assisted Diesel Particulate Filter Regeneration...

129

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

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

216: Drupal Monster Menus Module Security Bypass and Script 216: Drupal Monster Menus Module Security Bypass and Script Insertion Vulnerabilities V-216: Drupal Monster Menus Module Security Bypass and Script Insertion Vulnerabilities August 12, 2013 - 6:00am Addthis PROBLEM: Two vulnerabilities have been reported in the Monster Menus module for Drupal PLATFORM: Drupal Monster Menus Module 6.x and 7.x ABSTRACT: The vulnerabilities can be exploited by malicious users to bypass certain security restrictions and conduct script insertion attacks. REFERENCE LINKS: Secunia Advisory SA54391 Drupal Security Advisory CVE-2013-4229 CVE-2013-4230 IMPACT ASSES SMENT: Medium DISCUSSION: 1) Input passed via the title when editing page settings is not properly sanitised before being edited the next time. This can be exploited to insert arbitrary HTML and script code, which will be executed in a user's

130

T-594: IBM solidDB Password Hash Authentication Bypass Vulnerability |  

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

94: IBM solidDB Password Hash Authentication Bypass 94: IBM solidDB Password Hash Authentication Bypass Vulnerability T-594: IBM solidDB Password Hash Authentication Bypass Vulnerability April 4, 2011 - 6:08am Addthis PROBLEM: A vulnerability has been reported in IBM solidDB, which can be exploited by malicious people to bypass certain security restrictions. PLATFORM: IBM solidDB 4.x - IBM solidDB 6.x ABSTRACT: This vulnerability could allow remote attackers to execute arbitrary code on vulnerable installations of IBM solidDB. Authentication is not required to exploit this vulnerability. REFERENCE LINKS: IBM Security Alert Secunia Advisory: SA44030 ZDI Advisory: ZDI-11-115 IBM solidDB Support IMPACT ASSESSMENT: Medium Discussion: The specific flaw exists within the solid.exe process which listens by default on TCP ports 1315, 1964 and 2315. The authentication protocol

131

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

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

8: MySQL User Login Security Bypass and Unspecified 8: MySQL User Login Security Bypass and Unspecified Vulnerability U-188: MySQL User Login Security Bypass and Unspecified Vulnerability June 12, 2012 - 7:00am Addthis PROBLEM: A security issue and vulnerability have been reported in MySQL PLATFORM: MySQL 5.x ABSTRACT: An error when verifying authentication attempts can be exploited to bypass the authentication mechanism. Reference LINKS: Original Advisory CVE-2012-2122 Secunia Advisory 49409 IMPACT ASSESSMENT: High Discussion: Successful exploitation of this vulnerability requires MySQL to be built on a system with a library that allows "memcmp()" to return a value outside of the -128 through 127 range (e.g. sse-optimized glibc). NOTE: Vendor binaries are reportedly not affected. The security issue is reported in versions prior to 5.1.63 and 5.5.25.

132

V-197: Adobe ColdFusion 10 WebSockets Security Bypass Vulnerability |  

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

7: Adobe ColdFusion 10 WebSockets Security Bypass Vulnerability 7: Adobe ColdFusion 10 WebSockets Security Bypass Vulnerability V-197: Adobe ColdFusion 10 WebSockets Security Bypass Vulnerability July 11, 2013 - 6:00am Addthis PROBLEM: A vulnerability has been reported in Adobe ColdFusion PLATFORM: The vulnerability is reported in version 10 for Windows, Macintosh, and Linux ABSTRACT: The vulnerability is caused due to an unspecified error and can be exploited to invoke public methods on ColdFusion Components (CFC) using WebSockets REFERENCE LINKS: Secunia Advisory SA54024 Adobe Security Bulletin APSB13-19 Stackoverflow.com CVE-2013-3350 IMPACT ASSESSMENT: High DISCUSSION: The hotfix resolves a vulnerability that could permit an attacker to invoke public methods on ColdFusion Components (CFC) using WebSockets IMPACT: Security Bypass

133

V-162: Apache Struts "ParameterInterceptor" Security Bypass Vulnerability |  

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

2: Apache Struts "ParameterInterceptor" Security Bypass 2: Apache Struts "ParameterInterceptor" Security Bypass Vulnerability V-162: Apache Struts "ParameterInterceptor" Security Bypass Vulnerability May 23, 2013 - 6:00am Addthis PROBLEM: A vulnerability has been reported in Apache Struts PLATFORM: The vulnerability is reported in versions prior to 2.3.14.1 ABSTRACT: A vulnerability has been reported in Apache Struts, which can be exploited by malicious people to bypass certain security restrictions. REFERENCE LINKS: Secunia Advisory SA53495 Apache Struts Advisory S2-012 Apache Struts Advisory S2-013 CVE-2013-1965 CVE-2013-1966 IMPACT ASSESSMENT: High DISCUSSION: A request that included a specially crafted request parameter could be used to inject arbitrary OGNL code into the stack, afterward used as request

134

V-077: Barracuda SSL VPN Bug Lets Remote Users Bypass Authentication |  

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

7: Barracuda SSL VPN Bug Lets Remote Users Bypass 7: Barracuda SSL VPN Bug Lets Remote Users Bypass Authentication V-077: Barracuda SSL VPN Bug Lets Remote Users Bypass Authentication January 25, 2013 - 6:00am Addthis PROBLEM: A vulnerability was reported in Barracuda SSL VPN. PLATFORM: The vulnerability has been verified to exist in Barracuda SSL VPN version 2.2.2.203 ABSTRACT: A remote user can gain administrative access to the target system. REFERENCE LINKS: SecurityTracker Alert ID: 1028039 Barracuda Networks Advisory IMPACT ASSESSMENT: High DISCUSSION: A remote user can set a specially crafted Java system property (via 'setSysProp.jsp') to bypass access restrictions and gain access to the API functionality. This can be exploited to download configuration files, download database dumps, shutdown the system, and set new administrative

135

V-045: Adobe ColdFusion Lets Local Users Bypass Sandbox Restrictions |  

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

5: Adobe ColdFusion Lets Local Users Bypass Sandbox 5: Adobe ColdFusion Lets Local Users Bypass Sandbox Restrictions V-045: Adobe ColdFusion Lets Local Users Bypass Sandbox Restrictions December 12, 2012 - 2:00am Addthis PROBLEM: Adobe ColdFusion Lets Local Users Bypass Sandbox Restrictions PLATFORM: ColdFusion 10, 9.0.2, 9.0.1 and 9.0 for Windows, Macintosh and UNIX ABSTRACT: A vulnerability was reported in Adobe ColdFusion. REFERENCE LINKS: SecurityTracker Alert ID: 1027853 Adobe Vulnerability identifier: APSB12-26 CVE 2012-5675 IMPACT ASSESSMENT: High DISCUSSION: Adobe has released a security hotfix for ColdFusion 10 and earlier versions for Windows, Macintosh and UNIX. This hotfix resolves a vulnerability which could result in a sandbox permissions violation in a shared hosting environment. Adobe recommends users update their product installation using

136

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

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

7: EMC Cloud Tiering Appliance Flaw Lets Remote Users Bypass 7: EMC Cloud Tiering Appliance Flaw Lets Remote Users Bypass Authentication and Gain Administrative Access U-247: EMC Cloud Tiering Appliance Flaw Lets Remote Users Bypass Authentication and Gain Administrative Access August 29, 2012 - 6:00am Addthis PROBLEM: EMC Cloud Tiering Appliance Flaw Lets Remote Users Bypass Authentication and Gain Administrative Access PLATFORM: EMC Cloud Tiering Appliance (CTA) 7.4 and prior EMC Cloud Tiering Appliance Virtual Edition (CTA/VE) 7.4 and prior EMC Cloud Tiering Appliance (CTA) 9.0 and prior EMC Cloud Tiering Appliance Virtual Edition (CTA/VE) 9.0 and prior ABSTRACT: A vulnerability was reported in EMC Cloud Tiering Appliance. reference LINKS: SecurityTracker Alert ID: 1027448 Bugtraq ID: 55250 EMC.com CVE-2012-2285 IMPACT ASSESSMENT:

137

Variations in Oral Vitamin and Mineral Supplementation Following Bariatric Gastric Bypass Surgery: A National Survey  

Science Journals Connector (OSTI)

Bariatric surgery (including gastric bypass) is associated with long-term deficiencies in vitamins and minerals, which may have deleterious effects on physiology. The American Association of Clinical Endocrino...

Matt J. D. Dunstan; Emma J. Molena; Kumaran Ratnasingham; Anna Kamocka…

2014-11-01T23:59:59.000Z

138

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

Broader source: Energy.gov [DOE]

This Building America Innovations profile describes Building America research supporting Thermal Bypass Air Barrier requirements. Since these were adopted in the 2009 IECC, close to one million homes have been mandated to include this vitally important energy efficiency measure.

139

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

E-Print Network [OSTI]

Project Modifications Works, Yolo County, CA. USACE (U.S.2006. Office Report: Yolo Bypass 2-D Hydraulic ModelPlan. Prepared by CDFG, Yolo Basin Foundation and EDAW.

Church, Tami C.

2012-01-01T23:59:59.000Z

140

V-057: eXtplorer "ext_find_user()" Authentication Bypass Vulnerability |  

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

7: eXtplorer "ext_find_user()" Authentication Bypass 7: eXtplorer "ext_find_user()" Authentication Bypass Vulnerability V-057: eXtplorer "ext_find_user()" Authentication Bypass Vulnerability December 28, 2012 - 6:00am Addthis PROBLEM: eXtplorer "ext_find_user()" Authentication Bypass Vulnerability PLATFORM: eXtplorer 2.x ABSTRACT: A vulnerability has been reported in eXtplorer, which can be exploited by malicious people to bypass certain security restrictions. REFERENCE LINKS: Secunia Advisory SA51636 eXtplorer 2.1.3 Security Release IMPACT ASSESSMENT: Medium DISCUSSION: eXtplorer was notified of a problem within the authentication system of eXtplorer Versions 2.1.2, 2.1.1, 2.1.0 and 2.1.0RC5 that have been found to be vulnerable to an authentication bypass bug. IMPACT: An error within the "ext_find_user()" function in users.php can be

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141

DEVELOPMENT OF A CANDLE FILTER FAILURE SAFEGUARD DEVICE  

SciTech Connect (OSTI)

The full-flow mechanical safeguard device (FFMSGD) has been developed under contract to the National Energy Technology Laboratory (NETL) to address problems with the reliability of ceramic candle filter elements installed on high-temperature, high-pressure (HTHP) Hot Gas Cleanup (HGCU) filters. Although systems candle filters are expected to perform satisfactorily when in good operating condition, the failure of even a single filter element can increase the filter system outlet dust loading enough to potentially damage gas turbine blades, contaminate other downstream processes, and limit the availability of the power system. Filter failure safeguard devices that are installed on each individual candle filter element are envisioned as a guarantee of a candle filter system's ability to withstand some number of element failures and continue operation without these negative consequences. The intention of the FFMSGD is to provide this guarantee without incurring any significant pressure drop penalty or constraining the filter system's reverse-pulse cleaning procedures. The FFMSGD provides a clear flow path for filtered and reverse-flow cleaning gases when its filter element is intact, and activates to provide a positive mechanical seal against gas flow in either direction when its filter element breaks or fails. This activation is induced by the increase in the flow rate of gas through the device in event of filter failure. The FFMSGD is designed to be easily removed and reconditioned when the filter system is taken off line for routine maintenance. This report is intended to be issued with a companion appendix. As instructed in Section J.12 of Contract No. DE-AC26-99FT40678, all the restricted, proprietary, and patentable information (not yet disclosed through the patent application process) related to the FFMSGD and its evaluation under this contract has been included only in the appendix. This Final Report, which is available to the public, contains background information and general descriptions of the operating principles of the FFMSGD. This report also describes the results of various evaluations of the device at room temperature and in HTHP environments. This Final Report also includes discussions of commercialization issues. For clarity and completeness, all of the information contained in this Final Report has also been included in the appendix.

Todd R. Snyder

2002-03-29T23:59:59.000Z

142

TESTING OF THE SECOND GENERATION SPINTEK ROTARY FILTER -11357  

SciTech Connect (OSTI)

The SpinTek rotary microfilter has been developed under the Department of Energy (DOE) Office of Environmental Management (EM) for the purpose of deployment in radioactive service in the DOE complex. The unit that was fabricated and tested is the second generation of the filter that incorporates recommended improvements from previous testing. The completion of this test satisfied a key milestone for the EM technology development program and technology readiness for deployment by Savannah River Remediation in the Small Column Ion Exchange and Sludge Washing processes at the Savannah River Site (SRS). The Savannah River National Laboratory (SRNL) contracted SpinTek Filtration to fabricate a full scale 25 disk rotary filter and perform a 1000 hour endurance test with a simulated SRS sludge. Over 1500 hours of operation have been completed with the filter. SpinTek Filtration fabricated a prototypic 25 disk rotary filter including updates to manufacturing tolerances, an updated design to the rotary joint, improved cooling to the bottom journal, decreases in disk and filter shaft hydraulic resistances. The filter disks were fabricated with 0.5 {micro} pore size, sintered-metal filter media manufactured by Pall Corporation (M050). After fabrication was complete, the filter passed acceptance tests demonstrating rejection of solids and clean water flux with a 50% improvement over the previous filters. Once the acceptance test was complete, a 1000 hour endurance test was initiated simulating a sludge washing process. The test used a simulated SRS Sludge Batch 6 recipe. The insoluble solids started at 5 wt% and were raised to 10 and 15 wt% insoluble solids to simulate the concentration of a large volume tank. The filter system was automated and set up for 24 hour unattended operation. To facilitate this, process control logic was written to operate the filter. During the development it was demonstrated that the method of starting and stopping the filter can affect the build up of filter cake on the disks and therefore the performance of the filter. The filter performed well with the simulant. Very little drop in production was noticed between the 5 and 10 wt% insoluble solids feed. Increasing to 15 wt% had a more pronounced impact due to the rheology of the feed. Acid cleaning was used to clean the filter disks in-situ and restore filtration rate to almost 90% of the initial clean disk rate. Eighty liters of 0.2 M nitric acid in conjunction with water rinses were used to clean the filter in less than 2 hours. Filter testing was completed after 1000 hours of operation were performed on the final filter assembly configuration. The total run time for the testing was over 1500 hours. At the end of the test, the sludge washing was performed successfully from approximately 5.6 M to less than 1 M sodium.

Herman, D.; Poirier, M.; Fowley, M.; Keefer, M.; Huff, T.

2011-02-02T23:59:59.000Z

143

Secondary Pollutants from Ozone Reaction with Ventilation Filters and Degradation of Filter Media Additives  

E-Print Network [OSTI]

2007. Ozone removal by HVAC filters. Atmospheric Environmentozone reactions on HVAC filters cannot be ignored as aof pollutants from HVAC filters may be degradation of

Destaillats, Hugo

2012-01-01T23:59:59.000Z

144

Note: Cryogenic coaxial microwave filters  

SciTech Connect (OSTI)

The careful filtering of microwave electromagnetic radiation is critical for controlling the electromagnetic environment for experiments in solid-state quantum information processing and quantum metrology at millikelvin temperatures. We describe the design and fabrication of a coaxial filter assembly and demonstrate that its performance is in excellent agreement with theoretical modelling. We further perform an indicative test of the operation of the filters by making current-voltage measurements of small, underdamped Josephson junctions at 15 mK.

Tancredi, G.; Meeson, P. J. [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom)] [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom); Schmidlin, S. [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom) [Department of Physics, Royal Holloway, University of London, Egham TW20 0EX (United Kingdom); National Physical Laboratory, Hampton Road, Teddington TW11 0LW (United Kingdom)

2014-02-15T23:59:59.000Z

145

Ozone removal by HVAC filters  

Science Journals Connector (OSTI)

Residential and commercial HVAC filters that have been loaded with particles during operation in the field can remove ozone from intake or recirculated air. However, knowledge of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial buildings is incomplete. We measured the ozone removal efficiencies of clean (unused) fiberglass, clean synthetic filters, and field-loaded residential and commercial filters in a controlled laboratory setting. For most filters, the ozone removal efficiency declined rapidly but converged to a non-zero (steady-state) value. This steady-state ozone removal efficiency varied from 0% to 9% for clean filters. The mean steady-state ozone removal efficiencies for loaded residential and commercial filters were 10% and 41%, respectively. Repeated exposure of filters to ozone following a 24-h period of no exposure led to a regeneration of ozone removal efficiency. Based on a theoretical scaling analysis of mechanisms that are involved in the ozone removal process, we speculate that the steady-state ozone removal efficiency is limited by reactant diffusion out of particles, and that regeneration is due to internal diffusion of reactive species to sites available to ozone for reaction. Finally, by applying our results to a screening model for typical residential and commercial buildings, HVAC filters were estimated to contribute 22% and 95%, respectively, of total ozone removal in HVAC systems.

P. Zhao; J.A. Siegel; R.L. Corsi

2007-01-01T23:59:59.000Z

146

Multi-frequency aluminum nitride micro-filters for advanced RF communications.  

SciTech Connect (OSTI)

An AlN MEMS resonator technology has been developed, enabling massively parallel filter arrays on a single chip. Low-loss filter banks covering the 10 MHz--10-GHz frequency range have been demonstrated, as has monolithic integration with inductors and CMOS circuitry. The high level of integration enables miniature multi-bandm spectrally aware, and cognitive radios.

Nordquist, Christopher Daniel; Stevens, James E.; Olsson, Roy H., III; Wojciechowski, Kenneth E.; Tuck, Melanie R.

2010-03-01T23:59:59.000Z

147

A Design Space Approach to Analysis of Information Retrieval Adaptive Filtering Systems  

E-Print Network [OSTI]

A Design Space Approach to Analysis of Information Retrieval Adaptive Filtering Systems Dmitriy, Adaptive Filtering 1. INTRODUCTION Constructing and tuning a good Information Retrieval (IR) system it requires to accomplish its various tasks. In many other technologies, such as HVAC (heating, venti- lation

148

Perceptual improvement of Wiener filtering employing a post-filter  

Science Journals Connector (OSTI)

A major drawback of many speech enhancement methods in speech applications is the generation of an annoying residual noise with musical character. Although the Wiener filter introduces less musical noise than spectral subtraction methods, such noise, ... Keywords: MMSE, Modified masking threshold, Musical critical band, Perceptual post-filter, Speech enhancement

Md. Jahangir Alam; Douglas O'Shaughnessy

2011-01-01T23:59:59.000Z

149

Ceramic Particulate Filters  

Broader source: Energy.gov [DOE]

Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT).

150

MODELING MULTI-OUTPUT FILTERING EFFECTS IN PCMOS Anshul Singh*  

E-Print Network [OSTI]

MODELING MULTI-OUTPUT FILTERING EFFECTS IN PCMOS Anshul Singh* , Arindam Basu , Keck-Voon Ling* and Vincent J. Mooney III*$§ Email: anshul.singh@research.iiit.ac.in, {arindam.basu, ekvling}@ntu, Nanyang Technological University (NTU), Singapore * NTU-Rice Institute of Sustainable and Applied

Mooney, Vincent

151

Modelling of Brain Consciousness based on Collaborative Adaptive Filters  

E-Print Network [OSTI]

Modelling of Brain Consciousness based on Collaborative Adaptive Filters Ling Lia, , Yili Xiaa of Technology, Japan c Laboratory for Advanced Brain Signal Processing, RIKEN Brain Science Institute, Saitama method for the discrimination between discrete states of brain con- sciousness is proposed, achieved

Kent, University of

152

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

SciTech Connect (OSTI)

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.

Hassan, Yassin

2013-10-22T23:59:59.000Z

153

Solid colloidal optical wavelength filter  

DOE Patents [OSTI]

A solid colloidal optical wavelength filter includes a suspension of spheal particles dispersed in a coagulable medium such as a setting plastic. The filter is formed by suspending spherical particles in a coagulable medium; agitating the particles and coagulable medium to produce an emulsion of particles suspended in the coagulable medium; and allowing the coagulable medium and suspended emulsion of particles to cool.

Alvarez, Joseph L. (Boulder, CO)

1992-01-01T23:59:59.000Z

154

Assessment of Metal Media Filters for Advanced Coal-Based Power Generation Applications  

SciTech Connect (OSTI)

Advanced coal and biomass-based gas turbine power generation technologies (IGCC, PFBC, PCFBC, and Hipps) are currently under development and demonstration. Efforts at Siemens Westinghouse Power Corporation (SWPC) have been focused on the development and demonstration of hot gas filter systems as an enabling technology for power generation. This paper reviews SWPC's material and component assessment efforts, identifying the performance, stability, and life of porous metal, advanced alloy, and intermetallic filters under simulated, pressurized fluidized-bed combustion conditions.

Alvin, M.A.

2002-09-19T23:59:59.000Z

155

V-234: EMC RSA Archer GRC Open Redirection Weakness and Security Bypass  

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

4: EMC RSA Archer GRC Open Redirection Weakness and Security 4: EMC RSA Archer GRC Open Redirection Weakness and Security Bypass Security Issue V-234: EMC RSA Archer GRC Open Redirection Weakness and Security Bypass Security Issue September 4, 2013 - 6:00am Addthis PROBLEM: A weakness and a security issue have been reported in EMC RSA Archer GRC PLATFORM: EMC RSA Archer GRC 5.x ABSTRACT: This fixes multiple vulnerabilities, which can be exploited to bypass certain security restrictions and to conduct spoofing attacks REFERENCE LINKS: Secunia Advisory SA54717 SecurityTracker Alert ID 1028971 EMC Identifier: ESA-2013-057 CVE-2013-3276 CVE-2013-3277 IMPACT ASSESSMENT: Medium DISCUSSION: 1) The application does not properly restrict deactivated users. This can be exploited by deactivated users to login and gain access to otherwise

156

T-536: Cisco ASA Multiple Flaws Let Remote Users Deny Service and Bypass  

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

36: Cisco ASA Multiple Flaws Let Remote Users Deny Service and 36: Cisco ASA Multiple Flaws Let Remote Users Deny Service and Bypass Security Controls T-536: Cisco ASA Multiple Flaws Let Remote Users Deny Service and Bypass Security Controls January 18, 2011 - 2:30pm Addthis PROBLEM: Cisco ASA Multiple Flaws Let Remote Users Deny Service and Bypass Security Controls. PLATFORM: Cisco 5500 Series Adaptive Security Appliances (ASA) ABSTRACT: Cisco ASA 5500 Series Adaptive Security Appliances are affected by multiple vulnerabilities. Affected versions of Cisco ASA Software vary depending on the specific vulnerability. Cisco ASA 5500 Series Adaptive Security Appliances may experience a TCP connection exhaustion condition (no new TCP connections are accepted) that can be triggered through the receipt of specific TCP segments during the

157

Computations of high-pressure steam flow in the turbine bypass valve  

SciTech Connect (OSTI)

The objective of the present study is to investigate the steam flow behavior through the high-pressure turbine bypass valve. Efforts have mainly been directed at investigating the process of steam flow and property variations aforementioned bypass valve as well as to obtain correlations between the flow rate and the valve opening ratio. Modeling of the high-pressure turbulent steam flow was performed on a three-dimensional non-staggered grid system by employing the finite volume method and by solving the three-dimensional, turbulent, compressible Navier-Stokes, and energy equations. Through this research, numerous data have been acquired and analyzed. These efforts enable one to obtain a correlation data set for the valve opening versus flow rate coefficient of the valve. One of the significant accomplishments is to use the model presented here to further improve a design of a turbine bypass flow valve.

Amano, R.S.; Draxler, G.R.

1999-07-01T23:59:59.000Z

158

Backpulse and filter feed velocity effects on Norton filter performance  

SciTech Connect (OSTI)

A series of tests have been conducted using the 2.2 ft{sup 2} Norton filter to solve the fouling problems observed with the ETF Norton system. The objective of these tests was to determine filter efficiency as a function of backpulse strength and feed velocity. Based on experimental results, it is recommend that the filters should be operated at the following conditions: (1) Backpulse Transmembrane Pressure/FeedTransmembrane Pressure (BP/FP) > 1.5, preferably 2 or 3. (2) Feed crossflow velocity = 6--8 f/s. It is expected that operation at these conditions should improve performance by 30--60%.

Siler, J.L.

1990-05-08T23:59:59.000Z

159

Results from Evaluation of Proposed ASME AG-1 Section FI Metal Media Filters - 13063  

SciTech Connect (OSTI)

High efficiency particulate air (HEPA) filtration technology is commonly used in Department of Energy (DOE) facilities that require control of radioactive particulate matter (PM) emissions due to treatment or management of radioactive materials. Although HEPA technology typically makes use of glass fiber media, metal and ceramic media filters are also capable of filtering efficiencies beyond the required 99.97%. Sintered metal fiber filters are good candidates for use in DOE facilities due to their resistance to corrosive environments and resilience at high temperature and elevated levels of relative humidity. Their strength can protect them from high differential pressure or pressure spikes and allow for back pulse cleaning, extending filter lifetime. Use of these filters has the potential to reduce the cost of filtration in DOE facilities due to life cycle cost savings. ASME AG-1 section FI has not been approved due to a lack of protocols and performance criteria for qualifying section FI filters. The Institute for Clean Energy Technology (ICET) with the aid of the FI project team has developed a Section FI test stand and test plan capable of assisting in the qualification ASME AG-1 section FI filters. Testing done at ICET using the FI test stand evaluates resistance to rated air flow, test aerosol penetration and resistance to heated air of the section FI filters. Data collected during this testing consists of temperature, relative humidity, differential pressure, flow rate, upstream particle concentration, and downstream particle concentration. (authors)

Wilson, John A.; Giffin, Paxton K.; Parsons, Michael S.; Waggoner, Charles A. [Institute for Clean Energy Technology, Mississippi State University, 205 Research Blvd Starkville, MS 39759 (United States)] [Institute for Clean Energy Technology, Mississippi State University, 205 Research Blvd Starkville, MS 39759 (United States)

2013-07-01T23:59:59.000Z

160

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

E-Print Network [OSTI]

i Multi-Objective Analysis for Ecosystem Reconciliation on an Engineered Floodplain: The Yolo on an Engineered Floodplain: the Yolo Bypass in California's Central Valley Abstract Floodplains in California. Results suggest several land use changes and inundation management strategies on the Yolo Bypass that can

Pasternack, Gregory B.

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Pleated Ceramic Fiber Diesel Particulate Filter | Department...  

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

Pleated Ceramic Fiber Diesel Particulate Filter Pleated Ceramic Fiber Diesel Particulate Filter 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters...

162

A Framework for Nonlinear Filtering in MATLAB.  

E-Print Network [OSTI]

?? The object of this thesis is to provide a MATLAB framework for nonlinear filtering in general, and particle filtering in particular. This is done… (more)

Rosén, Jakob

2005-01-01T23:59:59.000Z

163

Catalytic Filter for Diesel Exhaust Purification | Department...  

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

Filter for Diesel Exhaust Purification This project is developing a precious metal-free passive diesel particulate filter. deer09fokema.pdf More Documents & Publications...

164

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

SciTech Connect (OSTI)

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.

Rich Johnson; Yu-Hsin Tung; Hiroyuki Sato

2011-07-01T23:59:59.000Z

165

Effects of 60 minutes of hyperoxia followed by normoxia before coronary artery bypass grafting on the inflammatory response profile and myocardial injury  

Science Journals Connector (OSTI)

Pre-treatment with hyperoxia followed by normoxia before coronary artery bypass grafting does not protect against myocardial injury.

Inga Karu; Peeter Tähepõld; Arno Ruusalepp; Kersti Zilmer; Mihkel Zilmer; Joel Starkopf

2012-09-14T23:59:59.000Z

166

A Survey of Mixed-Waste HEPA Filters in the DOE Complex  

SciTech Connect (OSTI)

A brief investigation was made to determine the quantities of spent, mixed-waste HEPA filters within the DOE Complex. The quantities of both the mixed-waste filters that are currently being generated, as well as the legacy mixed-waste filters being stored and awaiting disposition were evaluated. Seven DOE sites representing over 89% of the recent HEPA filter usage were identified. These sites were then contacted to determine the number of these filters that were likely destined to become mixed waste and to survey the legacy-filter quantities. Inquiries into the disposition plans for the filters were also made. It was determined that the seven sites surveyed possess approximately 500 m3 of legacy mixed-waste HEPA filters that will require processing, with an annual generation rate of approximately 25 m3. No attempt was made to extrapolate the results of this survey to the entire DOE Complex. These results were simply considered to be the lower bound of the totality of mixed-waste HEPA filters throughout the Complex. The quantities determined encourage the development of new treatment technologies for these filters, and provide initial data on which an appropriate capacity for a treatment process may be based.

Felicione, F. S.; Barber, D. B.; Carney, K. P.

2002-02-28T23:59:59.000Z

167

Formaldehyde emissions from ventilation filters under different relative  

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

Formaldehyde emissions from ventilation filters under different relative Formaldehyde emissions from ventilation filters under different relative humidity conditions Title Formaldehyde emissions from ventilation filters under different relative humidity conditions Publication Type Journal Article Refereed Designation Refereed Year of Publication 2013 Authors Sidheswaran, Meera A., Wenhao Chen, Agatha Chang, Robert Miller, Sebastian Cohn, Douglas P. Sullivan, William J. Fisk, Kazukiyo Kumagai, and Hugo Destaillats Journal Environmental Science and Technology Date Published 04/18/2013 Abstract A method combining life cycle assessment (LCA) and real options analyses is developed to predict project environmental and financial performance over time, under market uncertainties and decision-making flexibility. The method is applied to examine alternative uses for oil sands coke, a carbonaceous byproduct of processing the unconventional petroleum found in northern Alberta, Canada. Under uncertainties in natural gas price and the imposition of a carbon price, our method identifies that selling the coke to China for electricity generation by integrated gasification combined cycle is

168

V-190: ASUS RT-N66U Router AiCloud Security Bypass Security Issue |  

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

0: ASUS RT-N66U Router AiCloud Security Bypass Security Issue 0: ASUS RT-N66U Router AiCloud Security Bypass Security Issue V-190: ASUS RT-N66U Router AiCloud Security Bypass Security Issue July 2, 2013 - 12:38am Addthis PROBLEM: ASUS RT-N66U Router AiCloud Security Bypass Security Issue PLATFORM: ASUS RT-N66U Router firmware versions 3.0.0.4.270 and 3.0.0.4.354. ABSTRACT: A security issue in ASUS RT-N66U Router has been reported REFERENCE LINKS: Secunia Advisory SA53931 neohapsis IMPACT ASSESSMENT: Medium DISCUSSION: The security issue is caused due to the device not properly restricting access when processing certain HTTPS requests and can be exploited to gain access to otherwise restricted functionality and e.g. disclose the contents of arbitrary files and directories. Successful exploitation requires the AiCloud web service to be enabled.

169

U-244: McAfee Email Gateway Lets Remote Users Bypass Authentication and  

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

44: McAfee Email Gateway Lets Remote Users Bypass Authentication 44: McAfee Email Gateway Lets Remote Users Bypass Authentication and Conduct Cross-Site Scripting and Directory Traversal Attacks U-244: McAfee Email Gateway Lets Remote Users Bypass Authentication and Conduct Cross-Site Scripting and Directory Traversal Attacks August 27, 2012 - 7:00am Addthis PROBLEM: McAfee Email Gateway Lets Remote Users Bypass Authentication and Conduct Cross-Site Scripting and Directory Traversal Attacks PLATFORM: McAfee Email Gateway (MEG) 7.0.0 and 7.0.1 (MEG 6.7.x is NOT affected.) McAfee Email and Web Security (EWS) 5.6 Patch 3 and earlier McAfee Email and Web Security (EWS) 5.5 Patch 6 and earlier ABSTRACT: Several vulnerabilities were reported in McAfee Email Gateway. reference LINKS: McAfee Security Bulletin ID: SB10026 SecurityTracker Alert ID: 1027444

170

U-244: McAfee Email Gateway Lets Remote Users Bypass Authentication and  

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

4: McAfee Email Gateway Lets Remote Users Bypass Authentication 4: McAfee Email Gateway Lets Remote Users Bypass Authentication and Conduct Cross-Site Scripting and Directory Traversal Attacks U-244: McAfee Email Gateway Lets Remote Users Bypass Authentication and Conduct Cross-Site Scripting and Directory Traversal Attacks August 27, 2012 - 7:00am Addthis PROBLEM: McAfee Email Gateway Lets Remote Users Bypass Authentication and Conduct Cross-Site Scripting and Directory Traversal Attacks PLATFORM: McAfee Email Gateway (MEG) 7.0.0 and 7.0.1 (MEG 6.7.x is NOT affected.) McAfee Email and Web Security (EWS) 5.6 Patch 3 and earlier McAfee Email and Web Security (EWS) 5.5 Patch 6 and earlier ABSTRACT: Several vulnerabilities were reported in McAfee Email Gateway. reference LINKS: McAfee Security Bulletin ID: SB10026 SecurityTracker Alert ID: 1027444

171

THE CRESCENT BYPASS: A RIPARIAN RESTORATION PROJECT ON THE KINGS RIVER (FRESNO COUNTY)1  

E-Print Network [OSTI]

THE CRESCENT BYPASS: A RIPARIAN RESTORATION PROJECT ON THE KINGS RIVER (FRESNO COUNTY)1 Jonathan A-24, 1988; Davis, California. 2 Staff Biologist and Environmental Division Chief, respectively, Kings River Conservation District, Fresno, Calif. Abstract: The Kings River Conservation District planted over 1200 plants

Standiford, Richard B.

172

Water washable stainless steel HEPA filter  

DOE Patents [OSTI]

The invention is a high efficiency particulate (HEPA) filter apparatus and system, and method for assaying particulates. The HEPA filter provides for capture of 99.99% or greater of particulates from a gas stream, with collection of particulates on the surface of the filter media. The invention provides a filter system that can be cleaned and regenerated in situ.

Phillips, Terrance D. (617 Chestnut Ct., Aiken, SC 29803)

2001-01-01T23:59:59.000Z

173

Document Filtering With Inference Networks Jamie Callan  

E-Print Network [OSTI]

Document Filtering With Inference Networks Jamie Callan Computer Science Department University document filtering. The prob­ lems of document retrieval and document filtering are sim­ ilar of the infor­ mation available, are all different. This paper describes a new statistical document filtering

Callan, Jamie

174

Advanced hot-gas filter development. Topical report, September 30, 1994--May 31, 1996  

SciTech Connect (OSTI)

The application of high-performance, high-temperature particulate control devices is considered to be beneficial to advanced fossil fuel processing technology, to selected high-temperature industrial processes, and to waste incineration concepts. Ceramic rigid filters represent the most attractive technology for these applications due to their capability to withstand high-temperature corrosive environments. However, current generation monolithic filters have demonstrated poor resistance to crack propagation and can experience catastrophic failure during use. To address this problem, ceramic fiber-reinforced ceramic matrix composite (CMC) filter materials are needed for reliable damage tolerant candle filters. This program is focused on the development of an oxide-fiber reinforced oxide material composite filter material that is cost competitive with prototype next generation filters. This goal would be achieved through the development of a low cost sol-gel fabrication process and a three-dimensional fiber architecture optimized for high volume filter manufacturing. The 3D continuous fiber reinforcement provides a damage tolerant structure which is not subject to delamination-type failures. This report documents the Phase 1, Filter Material Development and Evaluation, results. Section 2 provides a program summary. Technical results, including experimental procedures, are presented and discussed in Section 3. Section 4 and 5 provide the Phase 1 conclusions and recommendations, respectively. The remaining sections cover acknowledgements and references.

Lane, J.E.; LeCostaouec, J.F.; Painter, C.J.; Sue, W.A.; Radford, K.C.

1996-12-31T23:59:59.000Z

175

Spatial filters for high power lasers  

DOE Patents [OSTI]

A spatial filter includes a first filter element and a second filter element overlapping with the first filter element. The first filter element includes a first pair of cylindrical lenses separated by a first distance. Each of the first pair of cylindrical lenses has a first focal length. The first filter element also includes a first longitudinal slit filter positioned between the first pair of cylindrical lenses. The second filter element includes a second pair of cylindrical lenses separated by a second distance. Each of the second pair of cylindrical lenses has a second focal length. The second filter element also includes a second longitudinal slit filter positioned between the second pair of cylindrical lenses.

Erlandson, Alvin Charles; Bayramian, Andrew James

2014-12-02T23:59:59.000Z

176

Active dc filter for HVDC systems  

SciTech Connect (OSTI)

This article is a case history of the installation of active dc filters for high-performance, low-cost harmonics filtering at the Lindome converter station in the Konti-Skan 2 HVDC transmission link between Denmark and Sweden. The topics of the article include harmonics, interference, and filters, Lindome active dc filter, active dc filter design, digital signal processor, control scheme, protection and fault monitoring, and future applications.

Zhang, W. (Royal Inst. of Tech., Stockholm (Sweden)); Asplund, G.

1994-01-01T23:59:59.000Z

177

RAPID SEPARATION METHOD FOR ACTINIDES IN EMERGENCY AIR FILTER SAMPLES  

SciTech Connect (OSTI)

A new rapid method for the determination of actinides and strontium in air filter samples has been developed at the Savannah River Site Environmental Lab (Aiken, SC, USA) that can be used in emergency response situations. The actinides and strontium in air filter method utilizes a rapid acid digestion method and a streamlined column separation process with stacked TEVA, TRU and Sr Resin cartridges. Vacuum box technology and rapid flow rates are used to reduce analytical time. Alpha emitters are prepared using cerium fluoride microprecipitation for counting by alpha spectrometry. The purified {sup 90}Sr fractions are mounted directly on planchets and counted by gas flow proportional counting. The method showed high chemical recoveries and effective removal of interferences. This new procedure was applied to emergency air filter samples received in the NRIP Emergency Response exercise administered by the National Institute for Standards and Technology (NIST) in April, 2009. The actinide and {sup 90}Sr in air filter results were reported in {approx}4 hours with excellent quality.

Maxwell, S.; Noyes, G.; Culligan, B.

2010-02-03T23:59:59.000Z

178

Development of an extended-service coolant filter  

SciTech Connect (OSTI)

An extended-service engine coolant filter has been developed, using conventional supplemental coolant additive (SCA) technology. This has been achieved by the use of a proprietary polymer coating, which delays the release of active engine coolant chemistry. Initial field data show a gradual release pattern for introducing SCA chemistry into the coolant, with complete release typically occurring in the range of 70,000 to 140,000 miles (112,651--225,302 km).

Mitchell, W.A. [BetzDearborn, Crystal Lake, IL (United States). Venture Activities Group; Hudgens, R.D. [Fleetguard/Nelson Inc., Cookeville, TN (United States)

1999-08-01T23:59:59.000Z

179

Electric filter with movable belt electrode  

DOE Patents [OSTI]

A method and apparatus for removing airborne contaminants entrained in a gas or airstream includes an electric filter characterized by a movable endless belt electrode, a grounded electrode, and a filter medium sandwiched there between. Inclusion of the movable, endless belt electrode provides the driving force for advancing the filter medium through the filter, and reduces frictional drag on the filter medium, thereby permitting a wide choice of filter medium materials. Additionally, the belt electrode includes a plurality of pleats in order to provide maximum surface area on which to collect airborne contaminants. 4 figs.

Bergman, W.

1983-09-20T23:59:59.000Z

180

A rigid porous filter and filtration method  

SciTech Connect (OSTI)

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.

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

1998-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

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

E-Print Network [OSTI]

Very High Temperature Rector (VHTR) had been designated as one of those promising reactors for the Next Generation (IV) Nuclear Plant (NGNP). For a prismatic core VHTR, one of the most crucial design considerations is the bypass flow and crossflow...

Wang, Huhu 1985-

2012-12-13T23:59:59.000Z

182

Left ventricular thrombosis following coronary artery bypass grafting in a patient with nephrotic syndrome: Report of a case  

Science Journals Connector (OSTI)

We present herein the case of a 63-year-old man with nephrotic syndrome who developed an apical infarction 4 days after undergoing coronary artery bypass grafting. Echocardiography done 2 weeks postoperatively...

Yukio Kioka; Hiroyuki Irié; Masahiro Okada; Nobuyuki Yamada…

1995-01-01T23:59:59.000Z

183

Evaluation of the KanchanTM Arsenic Filter under various water quality conditions of the Nawalparasi District, Nepal  

E-Print Network [OSTI]

In 2002, the Massachusetts Institute of Technology Department of Civil and Environmental Engineering partnered with the Environment and Public Health Organization to develop and disseminate the KanchanTM Arsenic Filter ...

Espinoza, Claudia M. (Claudia Maritza)

2011-01-01T23:59:59.000Z

184

Improving Filtering for Computer Graphics  

E-Print Network [OSTI]

When drawing images onto a computer screen, the information in the scene is typically more detailed than can be displayed. Most objects, however, will not be close to the camera, so details have to be filtered out, or anti-aliased, when the objects...

Manson, Josiah

2014-04-30T23:59:59.000Z

185

PLUTONIUM-URANIUM EXTRACTION (PUREX) FACILITY ALARACT DEMONSTRATION FOR FILTER HOUSING  

SciTech Connect (OSTI)

This document presents an As Low As Reasonably Achievable Control Technology (ALARACT) demonstration for evaluating corrosion on the I-beam supporting filter housing No.9 for the 291-A-l emission unit of the Plutonium-Uranium Extraction (PUREX) Facility, located in the 200 East Area of the Hanford Site. The PUREX facility is currently in surveillance and maintenance mode. During a State of Washington, Department of Health (WDOH) 291-A-l emission unit inspection, a small amount of corrosion was observed at the base of a high-efficiency particulate air (HEPA) filter housing. A series of internal and external inspections identified the source of the corrosion material as oxidation of a small section of one of the carbon steel I-beams that provides support to the stainless steel filter housing. The inspections confirmed the corrosion is isolated to one I-beam support location and does not represent any compromise of the structural support or filter housing integrity. Further testing and inspections of the support beam corrosion and its cause were conducted but did not determine the cause. No definitive evidence was found to support any degradation of the housing. Although no degradation of the housing was found, a conservative approach will be implemented. The following actions will be taken: (1) The current operating filter housing No.9 will be removed from service. (2) The only remaining available filter housings (No.1, No.2, and No.3) will be placed in service. These filter housings have new HEPA filters fitted with stainless steel frames and faceguards which were installed in the spring of 2007. (3) Filter housings No.5 and No.10 will be put on standby as backups. To document the assessment of the unit, a draft ALARACT filter housing demonstration for the PUREX filter housing was prepared, and informally provided to WDOH on August 7, 2008. A follow up WDOH response to the draft ALARACT filter housing demonstration for the PUREX filter housing questioned whether deteriorated galvanized filter faceguards discovered during an internal filter housing inspection met American Society of Mechanical Engineers (ASME) AG-l or Military Specification (MIL) 51068 standards. The filter system was designed and installed prior to the issuance of AG-l, February 1986; however, MIL 51068 did require galvanized faceguards. The faceguards are not necessary for filtration or structural purposes; it is concluded that the system is in compliance with the intent of the applicable standard. Appendix B provides supporting information to address this issue.

LEBARON GJ

2008-11-25T23:59:59.000Z

186

Are Ventilation Filters Degrading Indoor Air Quality in California Classrooms?  

E-Print Network [OSTI]

2007) “Ozone Removal by HVAC Filters. ” Atmos.  Environ.  HVAC filters  ozone deposition in  HVAC filters and byproduct formation, 

Fisk, Michael G. Apte and William J.

2009-01-01T23:59:59.000Z

187

System Effects of High Efficiency Filters in Homes  

E-Print Network [OSTI]

FIELD TESTING OF FILTER IMPACTS ON HVAC SYSTEM PERFORMANCEof Filters in Residential and Light-Commercial HVAC systems.HVAC system performance changes with different MERV filters

Walker, Iain S.

2014-01-01T23:59:59.000Z

188

ADVANCED HOT GAS FILTER DEVELOPMENT  

SciTech Connect (OSTI)

This report describes the fabrication and testing of continuous fiber ceramic composite (CFCC) based hot gas filters. The fabrication approach utilized a modified filament winding method that combined both continuous and chopped fibers into a novel microstructure. The work was divided into five primary tasks. In the first task, a preliminary set of compositions was fabricated in the form of open end tubes and characterized. The results of this task were used to identify the most promising compositions for sub-scale filter element fabrication and testing. In addition to laboratory measurements of permeability and strength, exposure testing in a coal combustion environment was performed to asses the thermo-chemical stability of the CFCC materials. Four candidate compositions were fabricated into sub-scale filter elements with integral flange and a closed end. Following the 250 hour exposure test in a circulating fluid bed combustor, the retained strength ranged from 70 t 145 percent of the as-fabricated strength. The post-test samples exhibited non-catastrophic failure behavior in contrast to the brittle failure exhibited by monolithic materials. Filter fabrication development continued in a filter improvement and cost reduction task that resulted in an improved fiber architecture, the production of a net shape flange, and an improved low cost bond. These modifications were incorporated into the process and used to fabricate 50 full-sized filter elements for testing in demonstration facilities in Karhula, Finland and at the Power Systems Development Facility (PSDF) in Wilsonville, AL. After 581 hours of testing in the Karhula facility, the elements retained approximately 87 percent of their as-fabricated strength. In addition, mechanical response testing at Virginia Tech provided a further demonstration of the high level of strain tolerance of the vacuum wound filter elements. Additional testing in the M. W. Kellogg unit at the PSDF has accumulated over 1800 hours of coal firing at temperatures of 760 °C including a severe thermal upset that resulted in the failure of several monolithic oxide elements. No failures of any kind have been reported for the MTI CFCC elements in either of these test campaigns. Additional testing is planned at the M. W. Kellogg unit and Foster Wheeler unit at the PSDF over the next year in order to qualify for consideration for the Lakeland PCFB. Process scale-up issues have been identified and manufacturing plans are being evaluated to meet the needs of future demand.

RICHARD A. WAGNER

1998-09-04T23:59:59.000Z

189

ENGINEERING TECHNOLOGY Engineering Technology  

E-Print Network [OSTI]

, Mechatronics Technology, and Renewable Energy Technology. Career Opportunities Graduates of four: business administration, wind farm management, aircraft maintenance, tooling production, quality and safety or selected program track focus. Transfer students must talk to their advisor about transferring their courses

190

ENGINEERING TECHNOLOGY Engineering Technology  

E-Print Network [OSTI]

: business administration, energy management, wind farm management, automation and controls, aircraft, Mechatronics Technology, and Renewable Energy Technology. Career Opportunities Graduates of four students must talk to their advisor about transferring their courses over for WSU credit. Laboratory

191

Building Technologies Office: Emerging Technologies  

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

Emerging Technologies Emerging Technologies Printable Version Share this resource Send a link to Building Technologies Office: Emerging Technologies to someone by E-mail Share Building Technologies Office: Emerging Technologies on Facebook Tweet about Building Technologies Office: Emerging Technologies on Twitter Bookmark Building Technologies Office: Emerging Technologies on Google Bookmark Building Technologies Office: Emerging Technologies on Delicious Rank Building Technologies Office: Emerging Technologies on Digg Find More places to share Building Technologies Office: Emerging Technologies on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Technology Research, Standards, & Codes Popular Links Success Stories Previous Next Lighten Energy Loads with System Design.

192

Koch Filter and DOW Teaming Profile  

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

Koch Filter Corporation Dow Chemical Koch Filter Corporation Dow Chemical 4411-A Darien Street 2301 Brazosport Boulevard Houston, TX 77028 Freeport, TX 77541 Business: HVAC Filter Manufacturer Business: Chemical Manufacturer Bob Sheppard John Theile Regional Sales Manager Reliability Engineer Phone: 713-672-6550 Phone: 979-238-1894 Email: bobs@kochfilter.com Email: jptheile@dow.com Koch Filter saves Dow $156,000 by improving air flow to turbines Project Scope Koch Filter Corporation evaluated the turbine operation at a Dow Chemical facility. They determined that the gas turbine's air intake system was undersized and pre-filters had an initial resistance that was too high, causing the turbine to be "starved" for air. Koch replaced these filters with a better filter that

193

Automatic tuning of continuous-time filters  

E-Print Network [OSTI]

Integrated high-Q continuous-time filters require adaptive tuning circuits that will correct the filter parameters such as center frequency and quality factor (Q). Three different automatic tuning techniques are introduced. In all of the proposed...

Sumesaglam, Taner

2004-11-15T23:59:59.000Z

194

Waveguide Filter Tutorial Julius O. Smith III  

E-Print Network [OSTI]

Waveguide Filter Tutorial Julius O. Smith III Center for Computer Research in Music and Acoustics was adapted from the conference paper "Waveguide Filter Tutorial," by J.O. Smith, Proceedings

Smith III, Julius Orion

195

An energy recovery filter for HVDC systems  

SciTech Connect (OSTI)

The paper investigates the use of a novel filter arrangement for eliminating harmonic instability. The CIGRE benchmark model is selected as the base system. Presented in the paper is an example of harmonic instability which is first eliminated using a conventional low Q filter. Subsequently an energy recovery filter (ER-filter) replaces the conventional low Q filter. It is shown that the ER-filter provides similar performance with a fraction of the power loss when compared with a low Q filter. The dynamic performance of the ER-filter is also demonstrated via the simulations of system start-up and faults. The tool used for this investigation is an electromagnetic transient simulation program.

Jiang, X.; Gole, A.M. (Univ. of Manitoba, Winnipeg (Canada). Dept. of Electrical and Computer Engineering)

1994-01-01T23:59:59.000Z

196

Development of Advanced Particulate Filters  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

197

Diesel Particulate Filter Technology for Low-Temperature and...  

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

for Low-Temperature and Low-NOxPM Applications 2004 DEER Conference Presentation: Johnson-Matthey Catalysts 2004deerchatterjee.pdf More Documents & Publications Performance...

198

Hybrid Plasma Reactor/Filter for Transportable Collective Protection Systems  

SciTech Connect (OSTI)

Pacific Northwest National Laboratory (PNNL) has performed an assessment of a Hybrid Plasma/Filter system as an alternative to conventional methods for collective protection. The key premise of the hybrid system is to couple a nonthermal plasma (NTP) reactor with reactive adsorption to provide a broader envelope of protection than can be provided through a single-solution approach. The first step uses highly reactive species (e.g. oxygen radicals, hydroxyl radicals, etc.) created in a nonthermal plasma (NTP) reactor to destroy the majority (~75% - 90%) of an incoming threat. Following the NTP reactor an O3 reactor/filter uses the O3 created in the NTP reactor to further destroy the remaining organic materials. This report summarizes the laboratory development of the Hybrid Plasma Reactor/Filter to protect against a ‘worst-case’ simulant, methyl bromide (CH3Br), and presents a preliminary engineering assessment of the technology to Joint Expeditionary Collective Protection performance specifications for chemical vapor air purification technologies.

Josephson, Gary B.; Tonkyn, Russell G.; Frye, J. G.; Riley, Brian J.; Rappe, Kenneth G.

2011-04-06T23:59:59.000Z

199

Ceramic hot-gas filter  

DOE Patents [OSTI]

A ceramic hot-gas candle filter having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during backpulse cleaning and is resistant to chemical degradation at high temperatures.

Connolly, Elizabeth Sokolinski (Wilmington, DE); Forsythe, George Daniel (Landenberg, PA); Domanski, Daniel Matthew (New Castle, DE); Chambers, Jeffrey Allen (Hockessin, DE); Rajendran, Govindasamy Paramasivam (Boothwyn, PA)

1999-01-01T23:59:59.000Z

200

Ceramic hot-gas filter  

DOE Patents [OSTI]

A ceramic hot-gas candle filter is described having a porous support of filament-wound oxide ceramic yarn at least partially surrounded by a porous refractory oxide ceramic matrix, and a membrane layer on at least one surface thereof. The membrane layer may be on the outer surface, the inner surface, or both the outer and inner surface of the porous support. The membrane layer may be formed of an ordered arrangement of circularly wound, continuous filament oxide ceramic yarn, a ceramic filler material which is less permeable than the filament-wound support structure, or some combination of continuous filament and filler material. A particularly effective membrane layer features circularly wound filament with gaps intentionally placed between adjacent windings, and a filler material of ceramic particulates uniformly distributed throughout the gap region. The filter can withstand thermal cycling during back pulse cleaning and is resistant to chemical degradation at high temperatures.

Connolly, E.S.; Forsythe, G.D.; Domanski, D.M.; Chambers, J.A.; Rajendran, G.P.

1999-05-11T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Ozone Removal by Filters Containing Activated Carbon: A Pilot Study  

E-Print Network [OSTI]

used as the only filter in a HVAC system, in this buildingair conditioning (HVAC) system. Filters containing 300 g of

Fisk, William

2012-01-01T23:59:59.000Z

202

Filter for isotopic alteration of mercury vapor  

DOE Patents [OSTI]

A filter for enriching the .sup.196 Hg content of mercury, including a reactor, a low pressure electric discharge lamp containing a fill of mercury and an inert gas. A filter is arranged concentrically around the lamp. The reactor is arranged around said filter, whereby radiation from said lamp passes through the filter and into said reactor. The lamp, the filter and the reactor are formed of quartz, and are transparent to ultraviolet light. The .sup.196 Hg concentration in the mercury fill is less than that which is present in naturally occurring mercury, that is less than about 0.146 atomic weight percent. Hydrogen is also included in the fill and serves as a quenching gas in the filter, the hydrogen also serving to prevent disposition of a dark coating on the interior of the filter.

Grossman, Mark W. (Belmont, MA); George, William A. (Gloucestor, MA)

1989-01-01T23:59:59.000Z

203

Filter for isotopic alteration of mercury vapor  

DOE Patents [OSTI]

A filter is described for enriching the [sup 196]Hg content of mercury, including a reactor, a low pressure electric discharge lamp containing a fill of mercury and an inert gas. A filter is arranged concentrically around the lamp. The reactor is arranged around said filter, whereby radiation from said lamp passes through the filter and into said reactor. The lamp, the filter and the reactor are formed of quartz, and are transparent to ultraviolet light. The [sup 196]Hg concentration in the mercury fill is less than that which is present in naturally occurring mercury, that is, less than about 0.146 atomic weight percent. Hydrogen is also included in the fill and serves as a quenching gas in the filter, the hydrogen also serving to prevent disposition of a dark coating on the interior of the filter. 9 figs.

Grossman, M.W.; George, W.A.

1989-06-13T23:59:59.000Z

204

Development of Advanced Particulate Filters  

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

of Technology ILJIN Electric Co., Korea Relevance and Objectives Existing DPF systems still need to improve filtrationregeneration efficiencies and back pressure. DPF...

205

The effect of porosity on the mechanical properties of cordierite diesel particulate filter substrates  

SciTech Connect (OSTI)

Diesel particulate filter (DPF) technology depends on porous ceramic structures that trap the particulate matter in the diesel engine exhaust gas stream. The design of DPFs requires balancing the functional requirement of soot filtration with the mechanical properties and both are influenced by the porosity of the substrate. In addition, increasing the porosity of the substrate can assist with the catalytic washcoating, engine back pressure and engine efficiency. The effect of porosity on the elastic and fracture mechanical properties of cordierite based ceramic particulate filters was examined and will be described. Elastic modulus of DPF substrates was determined using resonant ultrasound spectroscopy while fracture toughness was characterized using the double-torsion test method. The interrelationships among specimen thickness, wall orientation, porosity and mechanical properties of the filter substrates will be discussed. A materials selection procedure to obtain filters with high thermal shock resistance and optimal mechanical properties will be described.

Shyam, Amit [ORNL; Lara-Curzio, Edgar [ORNL; Watkins, Thomas R [ORNL

2009-01-01T23:59:59.000Z

206

Widget:RRSectionFilter | Open Energy Information  

Open Energy Info (EERE)

RRSectionFilter RRSectionFilter Jump to: navigation, search This widget creates a filter tool, which will allow the user to filter the content displayed on the screen by RR Section region. It has been designed for use explicitly with the Geothermal Regulatory Roadmap home page. It is not designed for any other use. Parameters No paramteres Dependancies The Geothermal Regulatory Roadmap Sections page. Usage This Widget assumes the existence of HTML elements created by the Geothermal Regulatory Roadmap Sections page, and is called by that page using the following code: {{#Widget:RRSectionFilter}} Example For an example of this widget in use, please visit the page referenced above. (GRR/Sections) Retrieved from "http://en.openei.org/w/index.php?title=Widget:RRSectionFilter&oldid=65912

207

Multi-Canister overpack internal HEPA filters  

SciTech Connect (OSTI)

The rationale for locating a filter assembly inside each Multi-Canister Overpack (MCO) rather than include the filter in the Cold Vacuum Drying (CVD) process piping system was to eliminate the potential for contamination to the operators, processing equipment, and the MCO. The internal HEPA filters provide essential protection to facility workers from alpha contamination, both external skin contamination and potential internal depositions. Filters installed in the CVD process piping cannot mitigate potential contamination when breaking the process piping connections. Experience with K-Basin material has shown that even an extremely small release can result in personnel contamination and costly schedule disruptions to perform equipment and facility decontamination. Incorporating the filter function internal to the MCO rather than external is consistent with ALARA requirements of 10 CFR 835. Based on the above, the SNF Project position is to retain the internal HEPA filters in the MCO design.

SMITH, K.E.

1998-11-03T23:59:59.000Z

208

Diesel particulate filter with zoned resistive heater  

DOE Patents [OSTI]

A diesel particulate filter assembly comprises a diesel particulate filter (DPF) and a heater assembly. The DPF filters a particulate from exhaust produced by an engine. The heater assembly has a first metallic layer that is applied to the DPF, a resistive layer that is applied to the first metallic layer, and a second metallic layer that is applied to the resistive layer. The second metallic layer is etched to form a plurality of zones.

Gonze, Eugene V [Pinckney, MI

2011-03-08T23:59:59.000Z

209

Zone heated diesel particulate filter electrical connection  

DOE Patents [OSTI]

An electrical connection system for a particulate filter is provided. The system includes: a particulate filter (PF) disposed within an outer shell wherein the PF is segmented into a plurality of heating zones; an outer mat disposed between the particulate filter and the outer shell; an electrical connector coupled to the outer shell of the PF; and a plurality of printed circuit connections that extend along the outer surface of the PF from the electrical connector to the plurality of heating zones.

Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI)

2010-03-30T23:59:59.000Z

210

DC side filters for multiterminal HVDC systems  

SciTech Connect (OSTI)

Multiterminal HVDC systems present challenges in the specification and design of suitable dc side filtering. This document examines the existing experience and addresses the particular technical problems posed by multiterminal systems. The filtering requirements of small taps are discussed, as is the potential use of active filters. Aspects of calculation and design are considered and recommendations made to guide the planners and designers of future multiterminal schemes.

Shore, N.L.; Adamson, K.; Bard, P. [and others] [and others

1996-10-01T23:59:59.000Z

211

Electrically-Assisted Diesel Particulate Filter Regeneration...  

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

Evaluation pm041lance2011p.pdf More Documents & Publications Electrically-Assisted Diesel Particulate Filter Regeneration Substrate Studies of an Electrically-Assisted Diesel...

212

Magnetic Filtration Process, Magnetic Filtering Material, and...  

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

SummaryORNL researchers developed a new method for filtering materials and managing wastewater. This invention offers an integrated, intensified process to handle organic...

213

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

SciTech Connect (OSTI)

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.

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

2012-01-01T23:59:59.000Z

214

Model of Phosphorus Precipitation and Crystal Formation in Electric Arc Furnace Steel Slag Filters  

Science Journals Connector (OSTI)

Model of Phosphorus Precipitation and Crystal Formation in Electric Arc Furnace Steel Slag Filters ... Phosphorus is generally the limiting nutrient in freshwater systems and its discharge from wastewaters favors eutrophication. ... (1) Stricter regulations for phosphorus discharges to smaller treatment plants creates a need for the development of new and extensive (requiring minimal operation) treatment technologies. ...

Dominique Claveau-Mallet; Scott Wallace; Yves Comeau

2011-12-30T23:59:59.000Z

215

Filtering Noisy ECG Signals Using the Extended Kalman Filter Based on a Modified Dynamic ECG Model  

E-Print Network [OSTI]

Filtering Noisy ECG Signals Using the Extended Kalman Filter Based on a Modified Dynamic ECG Model for the filtering of noisy ECG signals. The method is based on a modified nonlinear dynamic model, previously introduced for the generation of synthetic ECG signals. An automatic parameter selection method has also been

Paris-Sud XI, Université de

216

Technology Transfer: Available Technologies  

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

Please refer to the list of technologies below for licensing and research Please refer to the list of technologies below for licensing and research collaboration availability. If you can't find the technology you're interested in, please contact us at TTD@lbl.gov. Biotechnology and Medicine DIAGNOSTICS AND THERAPEUTICS CANCER CANCER PROGNOSTICS 14-3-3 Sigma as a Biomarker of Basal Breast Cancer ANXA9: A Therapeutic Target and Predictive Marker for Early Detection of Aggressive Breast Cancer Biomarkers for Predicting Breast Cancer Patient Response to PARP Inhibitors Breast Cancer Recurrence Risk Analysis Using Selected Gene Expression Comprehensive Prognostic Markers and Therapeutic Targets for Drug-Resistant Breast Cancers Diagnostic Test to Personalize Therapy Using Platinum-based Anticancer Drugs Early Detection of Metastatic Cancer Progenitor Cells

217

OTA based active filter design  

E-Print Network [OSTI]

for the circuit of Fig, 17 (p, 29) was ')bown in bq. (4. $'6) to be gml gm A = 2 s ClC2 sClgmZ gm gm 1 2 (4. 40) 42 The fourth-order system shown in 1'ig. 24 has the function A gm1gm2 CIC2 gm2 gm1gm2 L '" c'CC 2 1 2 gm&gm4 CI 2 (4. 41) I... and low pass filter using the circuit of Fig. 6 Thc t&an&i pass transfer function was of tne for? Khls Ar s +(a+b-KhZ)s+ab (2 4) K = n C where G = GZ+G3 G 1 (2. 5) a = (Gy+G) / C] (2. 6) b = GG4 / C(G+G4) (2. 7) h] = GZ/g where g = G+G4 w...

Ferrell, John Steven

2012-06-07T23:59:59.000Z

218

Effects of diesel particle filter retrofits and accelerated fleet turnover  

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

Effects of diesel particle filter retrofits and accelerated fleet turnover Effects of diesel particle filter retrofits and accelerated fleet turnover on drayage truck emissions at the port of Oakland Title Effects of diesel particle filter retrofits and accelerated fleet turnover on drayage truck emissions at the port of Oakland Publication Type Journal Article Year of Publication 2011 Authors Dallmann, Timothy R., Robert A. Harley, and Thomas W. Kirchstetter Journal Environmental Science & Technology Volume 45 Issue 24 Pagination 10773-10779 Abstract Heavy-duty diesel drayage trucks have a disproportionate impact on the air quality of communities surrounding major freight-handling facilities. In an attempt to mitigate this impact, the state of California has mandated new emission control requirements for drayage trucks accessing ports and rail yards in the state beginning in 2010. This control rule prompted an accelerated diesel particle filter (DPF) retrofit and truck replacement program at the Port of Oakland. The impact of this program was evaluated by measuring emission factor distributions for diesel trucks operating at the Port of Oakland prior to and following the implementation of the emission control rule. Emission factors for black carbon (BC) and oxides of nitrogen (NOx) were quantified in terms of grams of pollutant emitted per kilogram of fuel burned using a carbon balance method. Concentrations of these species along with carbon dioxide were measured in the exhaust plumes of individual diesel trucks as they drove by en route to the Port. A comparison of emissions measured before and after the implementation of the truck retrofit/replacement rule shows a 54 ± 11% reduction in the fleet-average BC emission factor, accompanied by a shift to a more highly skewed emission factor distribution. Although only particulate matter mass reductions were required in the first year of the program, a significant reduction in the fleet-average NOx emission factor (41 ± 5%) was observed, most likely due to the replacement of older trucks with new ones.

219

Technology Transfer: Available Technologies  

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

Software and Information Technologies Software and Information Technologies Algorithm for Correcting Detector Nonlinearites Chatelet: More Accurate Modeling for Oil, Gas or Geothermal Well Production Collective Memory Transfers for Multi-Core Processors Energy Efficiency Software EnergyPlus:Energy Simulation Software for Buildings Tools, Guides and Software to Support the Design and Operation of Energy Efficient Buildings Flexible Bandwidth Reservations for Data Transfer Genomic and Proteomic Software LABELIT - Software for Macromolecular Diffraction Data Processing PHENIX - Software for Computational Crystallography Vista/AVID: Visualization and Allignment Software for Comparative Genomics Geophysical Software Accurate Identification, Imaging, and Monitoring of Fluid Saturated Underground Reservoirs

220

Automatic tuning for linearly tunable filter  

E-Print Network [OSTI]

A new tuning scheme for linearly tunable high-Q filters is proposed. The tuning method is based on using the phase information for both frequency and Q factor tuning. There is no need to find out the relationship between a filter's passband...

Huang, Sung-Ling

2004-09-30T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

A fuzzy-tuned adaptive Kalman filter  

E-Print Network [OSTI]

In this paper, fuzzy processing is applied to the adaptive Kalman filter. The filter gain coefficients are adapted over a 50 dB range of unknown signal/noise dynamics, using fuzzy membership functions. Specific simulation results are shown for a...

Painter, John H.; Young Hwan Lho

1993-12-01T23:59:59.000Z

222

Cryogenic Filters for RFI Mitigation in Radioastronomy  

E-Print Network [OSTI]

RFI mitigation in Radioastronomy can be achieved adopting cryogenic filters in appropriate typologies. A study has been conducted in L, C and X band with the evaluation of the filter architecture in copper, with theoretical estimation, computer simulations, prototypes realization, laboratory measurements. Such work has been preliminary to the realization of HTS samples with the purpose of a similar complete characterization approach.

G. Tuccari; A. Caddemi; S. Barbarino; G. Nicotra; F. Consoli; F. Schilliro; F. Catalfamo

2005-01-03T23:59:59.000Z

223

Thermovoltaic semiconductor device including a plasma filter  

DOE Patents [OSTI]

A thermovoltaic energy conversion device and related method for converting thermal energy into an electrical potential. An interference filter is provided on a semiconductor thermovoltaic cell to pre-filter black body radiation. The semiconductor thermovoltaic cell includes a P/N junction supported on a substrate which converts incident thermal energy below the semiconductor junction band gap into electrical potential. The semiconductor substrate is doped to provide a plasma filter which reflects back energy having a wavelength which is above the band gap and which is ineffectively filtered by the interference filter, through the P/N junction to the source of radiation thereby avoiding parasitic absorption of the unusable portion of the thermal radiation energy.

Baldasaro, Paul F. (Clifton Park, NY)

1999-01-01T23:59:59.000Z

224

Digital filtering in a disease detection system  

SciTech Connect (OSTI)

A low-pass, nonrecursive digital filter has been designed to process data in an automated enzyme immunoassay system. The software implemented filter has been installed in the Intel 80/10 system controller. A low-speed sample rate of three samples per second allowed the filter algorithm to be programmed in the high-level FORTRAN language with a resultant execution speed of 0.6 seconds per day array. Fourier techniques are used to derive a zero phase shift filter algorithm from a frequency domain prototype. The resulting alogrithm is modified by a Hamming window to reduce transients and Gibbs phenomenon oscillations. Observations on the effectiveness of the filter under full system operation indicate a 90% data recovery rate.

Brown, R.R.

1983-01-01T23:59:59.000Z

225

Development of a Rotary Micro-filter for Radioactive Waste Applications  

SciTech Connect (OSTI)

The processing rates of Savannah River Site (SRS) high-level waste decontamination processes are limited by the flow rate of the solid-liquid separation. The baseline process, using a 0.1 micron cross-flow filter, produces {approx}1.36 x 10{sup -5} m/s ({approx}0.02 gpm/ft{sup 2}) of filtrate under expected operating conditions. Savannah River National Laboratory (SRNL) demonstrated significantly higher filter flux for actual waste samples using a small-scale rotary filter. With funding from the U. S. Department of Energy Office of Cleanup Technology, SRNL personnel are evaluating and developing the rotary micro-filter for radioactive service at SRS. The authors improved the design for the disks and filter unit to make them suitable for high-level radioactive service. They procured two units using the new design, tested them with simulated SRS wastes, and evaluated the operation of the units. Work to date provides the following conclusions and program status. - The authors modified the design of the filter disks to remove epoxy and Ryton{sup R}. The new design includes welding both stainless steel and ceramic coated stainless steel filter media to a stainless steel support plate. The welded disks were tested in the full-scale unit. They showed good reliability and met filtrate quality requirements. - The authors modified the design of the unit, making installation and removal easier. The new design uses a modular, one-piece filter stack that is removed simply by disassembly of a flange on the upper (inlet) side of the filter housing. All seals and rotary unions are contained within the removable stack. - While it is extremely difficult to predict the life of the seal, the vendor representative indicates a minimum of one year in present service conditions is reasonable. Changing the seal face material from silicon-carbide to a graphite-impregnated silicon-carbide is expected to double the life of the seal. Replacement of the current seal with an air seal could increase the lifetime to 5 years and is undergoing testing in the current work. - The bottom bushing showed wear due to a misalignment during the manufacture of the filter tank. Replacing the graphite bushing with a more wear resistant material such as a carbide material will increase the lifetime of the bushing. This replacement requires a more wear resistant part or coating to prevent excessive wear of the shaft. The authors are currently conducting testing with the more wear resistant bushing. - The project team plans to use the rotary micro-filter as a filter in advance of an ion exchange process under development for potential deployment in SRS waste tank risers. (authors)

Poirier, M.R.; Herman, D.T.; Fink, S.D. [Savannah River National Laboratory, Aiken, SC (United States)

2008-07-01T23:59:59.000Z

226

Navy Technology Validation (Techval)  

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

Technology Technology Validation (Techval) FUPWG Spring Meeting 2008 April 15, 2008 Destin, FL Paul Kistler, PE CEM NAVFAC Engineering Service Center Port Hueneme CA Navy Techval CURRENT PROJECTS * Cool Roof reflective roof coating  NS Pearl Harbor HI * Thermal Destratifiers  NAS Oceana VA * Boiler Combustion Controls  USNA Annapolis MD * Sand Filters  NAS Lemoore CA * Spectrally Enhanced Lighting  Navy Yard Washington DC * Desuperheater  NS Norfolk VA  NAS North Island CA * HVAC CO2 Controls  NAB Little Creek VA  NAVSUPPACT Mid-South TN  NB Kitsap Bremerton WA *HVAC Occupancy Controls NAS Oceana VA *Electromagnetic Pulse Water Treatment NADEP San Diego CA NSY Puget Sound WA *LED Parking Lot Lighting NBVC Port Hueneme CA Techval

227

Method for reducing pressure drop through filters, and filter exhibiting reduced pressure drop  

DOE Patents [OSTI]

Methods for generating and applying coatings to filters with porous material in order to reduce large pressure drop increases as material accumulates in a filter, as well as the filter exhibiting reduced and/or more uniform pressure drop. The filter can be a diesel particulate trap for removing particulate matter such as soot from the exhaust of a diesel engine. Porous material such as ash is loaded on the surface of the substrate or filter walls, such as by coating, depositing, distributing or layering the porous material along the channel walls of the filter in an amount effective for minimizing or preventing depth filtration during use of the filter. Efficient filtration at acceptable flow rates is achieved.

Sappok, Alexander; Wong, Victor

2014-11-18T23:59:59.000Z

228

OPTIMIZATION OF ADVANCED FILTER SYSTEMS  

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

PROGRAM FINAL REPORT PROGRAM FINAL REPORT October 1, 1999 - August 30, 2001 By R. A. Newby (SWPC), Program Manager T. E. Lippert (SWPC) Rachid B. Slimane (GTI) O. Mehmet Akpolat (GTI) Keyur Pandya (GTI) Francis S. Lau (GTI) Javad Abbasian (GTI) Brett E. Williams (GTI) Dennis Leppin (GTI) August 2001 DOE Award Number: DE-AC26-99FT40674 Prepared for U.S. Department of Energy National Energy Technology Laboratory Prepared by Siemens Westinghouse Power Corporation Science & Technology Center 1310 Beulah Rd. Pittsburgh, Pennsylvania 15235 & Gas Technology Institute 1700 S. Mt. Prospect Rd. Des Plaines, Illinois 60018 i DISCLAIMER This report was prepared as an account of work sponsored by the United States Government. Neither the United States nor the United States Department of Energy, nor any of

229

Emerging Technologies  

Broader source: Energy.gov [DOE]

The Emerging Technologies (ET) Program of the Building Technologies Office (BTO) supports applied research and development (R&D) for technologies, systems, and models that contribute to building energy consumption.

230

Superior Cardiac Function Via Anaplerotic Pyruvate in the Immature Swine Heart After Cardiopulmonary Bypass and Reperfusion  

SciTech Connect (OSTI)

Pyruvate produces inotropic responses in the adult reperfused heart. Pyruvate oxidation and anaplerotic entry into the citric acid cycle (CAC) via carboxylation are linked to stimulation of contractile function. The goals of this study were to determine if these metabolic pathways operate and are maintained in the developing myocardium after reperfusion. Immature male swine (age 10-18 days) were subjected to cardiopulmonary bypass (CPB). Intracoronary infusion of [2]-13C-pyruvate (to achieve a final concentration of 8 mM) was given for 35 minutes starting either during weaning (Group I), after discontinuation (Group II) or without (Control) CPB. Hemodynamic data was collected. 13C NMR spectroscopy was used to determine the fraction of pyruvate entering the CAC via pyruvate carboxylation (PC) to total CAC entry (PC plus decarboxlyation via pyruvate dehydrogenase). Liquid chromatography-mass spectrometry was used to determine total glutamate enrichment.

Olson, Aaron; Hyyti, Outi M.; Cohen, Gordon A.; Ning, Xue-Han; Sadilek, Martin; Isern, Nancy G.; Portman, Michael A.

2008-12-01T23:59:59.000Z

231

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

SciTech Connect (OSTI)

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.

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

2012-09-01T23:59:59.000Z

232

Laboratory Testing of the Boundary Layer Momentum Transfer Rotational Filter Systems, NETL-Innovatech, Inc., CRADA 98-F026, Final Report  

SciTech Connect (OSTI)

A patented dynamic mechanical filter developed by InnovaTech was previously shown to remove fine particulate matter from industrial process gas streams at ambient temperatures and pressures. An all-metal, high-temperature version of this novel media-less filter was fabricated under this Cooperative Research and Development Agreement (CRADA) with DOE/NETL-Morgantown for hot gas testing of the device. The technology is entirely different in both concept and design from conventional vortex separators, cyclones, or porous media filters. This new filtration concept is capable of separating heavy loading of fine particles without blinding, fouling or bridging, and would require minimal operational costs over its anticipated multi-year service life. The all-metal filter design eliminates thermal stress cracking and premature failure prevalent in conventional porous ceramic filters. In contrast, conventional porous media filters (i.e., ceramic cross-flow or candles) easily foul, require periodic cleaning (typically backpulsing), frequent replacement and subsequent disposal.

National Energy Technology Laboratory

2000-08-22T23:59:59.000Z

233

Technology Transfer  

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

Technology Transfer Since 1974, the Federal Laboratory Consortium (FLC) Award for Excellence in Technology Transfer has recognized scientists and engineers at federal government...

234

Tools & Technologies  

Broader source: Energy.gov [DOE]

We provide leadership for transforming workforce development through the power of technology. It develops corporate educational technology policy and enables the use of learning tools and...

235

Vehicle Technologies Office: Fact #568: April 27, 2009 For Modern Cars,  

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

8: April 27, 8: April 27, 2009 For Modern Cars, Replacing an Air Filter Will Improve Performance but Not Fuel Economy to someone by E-mail Share Vehicle Technologies Office: Fact #568: April 27, 2009 For Modern Cars, Replacing an Air Filter Will Improve Performance but Not Fuel Economy on Facebook Tweet about Vehicle Technologies Office: Fact #568: April 27, 2009 For Modern Cars, Replacing an Air Filter Will Improve Performance but Not Fuel Economy on Twitter Bookmark Vehicle Technologies Office: Fact #568: April 27, 2009 For Modern Cars, Replacing an Air Filter Will Improve Performance but Not Fuel Economy on Google Bookmark Vehicle Technologies Office: Fact #568: April 27, 2009 For Modern Cars, Replacing an Air Filter Will Improve Performance but Not Fuel Economy on Delicious

236

Technology Transfer: Available Technologies  

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

Ion Sources and Beam Technologies Ion Sources and Beam Technologies GENERATORS AND DETECTORS Compact, Safe and Energy Efficient Neutron Generator Fast Pulsed Neutron Generator High Energy Gamma Generator Lithium-Drifted Silicon Detector with Segmented Contacts Low Power, High Energy Gamma Ray Detector Calibration Device Nested Type Coaxial Neutron Generator Neutron and Proton Generators: Cylindrical Neutron Generator with Nested Option, IB-1764 Neutron-based System for Nondestructive Imaging, IB-1794 Mini Neutron Tube, IB-1793a Ultra-short Ion and Neutron Pulse Production, IB-1707 Mini Neutron Generator, IB-1793b Compact Spherical Neutron Generator, IB-1675 Plasma-Driven Neutron/Gamma Generators Portable, Low-cost Gamma Source for Active Interrogation ION SOURCES WITH ANTENNAS External Antenna for Ion Sources

237

Evaluation of Passive and Active Soot Filters for Removal of...  

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

Passive and Active Soot Filters for Removal of Particulate Emissions from Diesel Engines Evaluation of Passive and Active Soot Filters for Removal of Particulate Emissions from...

238

Development of SCR on Diesel Particulate Filter System for Heavy...  

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

SCR on Diesel Particulate Filter System for Heavy Duty Applications Development of SCR on Diesel Particulate Filter System for Heavy Duty Applications Evaluation of a system...

239

Expanded Capacity Microwave-Cleaned Diesel Particulate Filter...  

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

Expanded Capacity Microwave-Cleaned Diesel Particulate Filter Expanded Capacity Microwave-Cleaned Diesel Particulate Filter 2002 DEER Conference Presentation: Industrial Ceramic...

240

Predicting Thermal Stress in Diesel Particulate Filters | Department...  

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

Thermal Stress in Diesel Particulate Filters Predicting Thermal Stress in Diesel Particulate Filters 2004 Diesel Engine Emissions Reduction (DEER) Conference Presentation: Corning...

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneratio...  

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

Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel Consumption Ultra-Lite Diesel Particulate Filter Cartridge for Reduced Regeneration Time and Fuel...

242

Neutron Imaging of Diesel Particulate Filters | Department of...  

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

Neutron Imaging of Diesel Particulate Filters Neutron Imaging of Diesel Particulate Filters Neutron computed tomography shows soot and ash loading in a cordierite diesel...

243

Non-Destructive Neutron Imaging to Analyze Particulate Filters...  

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

Neutron Imaging to Analyze Particulate Filters Non-Destructive Neutron Imaging to Analyze Particulate Filters Non-destructive, non-invasive imaging is being employed in the...

244

Durability of Diesel Engine Particulate Filters (Agreement ID...  

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

Durability of Diesel Engine Particulate Filters (Agreement ID:10461) Durability of Diesel Engine Particulate Filters (Agreement ID:10461) 2013 DOE Hydrogen and Fuel Cells Program...

245

Cryogenic metal mesh bandpass filters for submillimeter astronomy  

Science Journals Connector (OSTI)

A bandpass filter of the double-halfwave design has been developed for use in submillimeter astronomy. The filter is rugged, easily tunable, easy to construct, and cryogenically...

Dragovan, Mark

1984-01-01T23:59:59.000Z

246

Improvement and Simplification of Diesel Particulate Filter System...  

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

and Simplification of Diesel Particulate Filter System using a Ceria-Based Fuel-Borne Catalyst in Serial Applications Improvement and Simplification of Diesel Particulate Filter...

247

California ARB Verification Testing of the CBSTM Soot Filter...  

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

California ARB Verification Testing of the CBSTM Soot Filter for Stationary Diesel Applications California ARB Verification Testing of the CBSTM Soot Filter for Stationary Diesel...

248

Design of Water Filter for Third World Countries  

E-Print Network [OSTI]

Research &Responsibilities Sections Written Reverse osmosis filter research Acknowledgements Slow sand.2 Reverse Osmosis Filters 12.0 Recommendations _______________ Jingwen Wang #12;- 4 - Table of Contents List

Sun, Yu

249

U-252: Barracuda Web Filter Input Validation Flaws Permit Cross...  

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

2: Barracuda Web Filter Input Validation Flaws Permit Cross-Site Scripting Attacks U-252: Barracuda Web Filter Input Validation Flaws Permit Cross-Site Scripting Attacks September...

250

Tribological performance of hybrid filtered arc-magnetron coatings...  

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

Tribological performance of hybrid filtered arc-magnetron coatings - Part I: Coating deposition process and basic coating Tribological performance of hybrid filtered arc-magnetron...

251

Quantum Imaging Technologies  

E-Print Network [OSTI]

Over the past three decades, quantum mechanics has allowed the development of technologies that provide unconditionally secure communication. In parallel, the quantum nature of the transverse electromagnetic field has spawned the field of quantum imaging that encompasses technologies such as quantum ghost imaging and high-dimensional quantum key distribution (QKD). The emergence of such quantum technologies also highlights the need for the development of methods for characterizing the elusive quantum state itself. In this document, we describe new technologies that use the quantum properties of light for security. The first is a technique that extends the principles behind QKD to the field of imaging. By applying the polarization-based BB84 protocol to individual photons in an active imaging system, we obtained images that are secure against intercept-resend jamming attacks. The second technology presented in this article is based on an extension of quantum ghost imaging. We used a holographic filtering technique to build a quantum ghost image identification system that uses a few pairs of photons to identify an object from a set of known objects. The third technology addressed in this document is a high-dimensional QKD system that uses orbital-angular-momentum (OAM) modes of light for encoding. Moving to a high-dimensional state space in QKD allows one to impress more information on each photon, as well as introduce higher levels of security. We discuss the development of two OAM-QKD protocols based on the BB84 and Ekert QKD protocols. The fourth and final technology presented in this article is a relatively new technique called direct measurement that uses sequential weak and strong measurements to characterize a quantum state. We use this technique to characterize the quantum state of a photon with a dimensionality of d=27, and measure its rotation in the natural basis of OAM.

Mehul Malik; Robert W. Boyd

2014-06-06T23:59:59.000Z

252

Neutron Imaging of Diesel Particulate Filters  

SciTech Connect (OSTI)

This article presents nondestructive neutron computed tomography (nCT) measurements of Diesel Particulate Filters (DPFs) as a method to measure ash and soot loading in the filters. Uncatalyzed and unwashcoated 200cpsi cordierite DPFs exposed to 100% biodiesel (B100) exhaust and conventional ultra low sulfur 2007 certification diesel (ULSD) exhaust at one speed-load point (1500rpm, 2.6bar BMEP) are compared to a brand new (never exposed) filter. Precise structural information about the substrate as well as an attempt to quantify soot and ash loading in the channel of the DPF illustrates the potential strength of the neutron imaging technique.

Strzelec, Andrea [ORNL; Bilheux, Hassina Z [ORNL; FINNEY, Charles E A [ORNL; Daw, C Stuart [ORNL; Foster, Prof. Dave [University of Wisconsin; Rutland, Prof. Christopher J. [University of Wisconsin; Schillinger, Burkhard [FRM-II, Technische Universitaet Munchen; Schulz, Michael [FRM-II, Technische Universitaet Munchen

2009-01-01T23:59:59.000Z

253

Electrically heated particulate filter embedded heater design  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine and wherein an upstream surface of the particulate filter includes machined grooves. A grid of electrically resistive material is inserted into the machined grooves of the exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF.

Gonze, Eugene V.; Chapman, Mark R.

2014-07-01T23:59:59.000Z

254

Metrics For Comparing Plasma Mass Filters  

SciTech Connect (OSTI)

High-throughput mass separation of nuclear waste may be useful for optimal storage, disposal, or environmental remediation. The most dangerous part of nuclear waste is the fission product, which produces most of the heat and medium-term radiation. Plasmas are well-suited to separating nuclear waste because they can separate many different species in a single step. A number of plasma devices have been designed for such mass separation, but there has been no standardized comparison between these devices. We define a standard metric, the separative power per unit volume, and derive it for three different plasma mass filters: the plasma centrifuge, Ohkawa filter, and the magnetic centrifugal mass filter. __________________________________________________

Abraham J. Fetterman and Nathaniel J. Fisch

2012-08-15T23:59:59.000Z

255

Exploration Technologies Technology Needs Assessment  

Broader source: Energy.gov [DOE]

The Exploration Technologies Needs Assessment is a critical component of ongoing technology roadmapping efforts, and will be used to guide the program's research and development.

256

Method and apparatus for a self-cleaning filter  

DOE Patents [OSTI]

A method and apparatus for removing fine particulate matter from a fluid stream without interrupting the overall process or flow. The flowing fluid inflates and expands the flexible filter, and particulate is deposited on the filter media while clean fluid is permitted to pass through the filter. This filter is cleaned when the fluid flow is stopped, the filter collapses, and a force is applied to distort the flexible filter media to dislodge the built-up filter cake. The dislodged filter cake falls to a location that allows undisrupted flow of the fluid after flow is restored. The shed particulate is removed to a bin for periodic collection. A plurality of filter cells can operate independently or in concert, in parallel, or in series to permit cleaning the filters without shutting off the overall fluid flow. The self-cleaning filter is low cost, has low power consumption, and exhibits low differential pressures.

Diebold, James P. (Lakewood, CO); Lilley, Arthur (Finleyville, PA); Browne, III, Kingsbury (Golden, CO); Walt, Robb Ray (Aurora, CO); Duncan, Dustin (Littleton, CO); Walker, Michael (Longmont, CO); Steele, John (Aurora, CO); Fields, Michael (Arvada, CO)

2010-11-16T23:59:59.000Z

257

Ozone Removal by Filters Containing Activated Carbon: A Pilot Study  

SciTech Connect (OSTI)

This study evaluated the ozone removal performance of moderate-cost particle filters containing activated carbon when installed in a commercial building heating, ventilating, and air conditioning (HVAC) system. Filters containing 300 g of activated carbon per 0.09 m2 of filter face area were installed in two 'experimental' filter banks within an office building located in Sacramento, CA. The ozone removal performance of the filters was assessed through periodic measurements of ozone concentrations in the air upstream and downstream of the filters. Ozone concentrations were also measured upstream and downstream of a 'reference' filter bank containing filters without any activated carbon. The filter banks with prefilters containing activated carbon were removing 60percent to 70percent of the ozone 67 and 81 days after filter installation. In contrast, there was negligible ozone removal by the reference filter bank without activated carbon.

Fisk, William; Spears, Mike; Sullivan, Douglas; Mendell, Mark

2009-09-01T23:59:59.000Z

258

Energy Technologies  

Broader source: Energy.gov [DOE]

Best practices, project resources, and other tools on energy efficiency and renewable energy technologies.

259

Dissipative Cryogenic Filters with Zero DC Resistance  

SciTech Connect (OSTI)

The authors designed, implemented and tested cryogenic RF filters with zero DC resistance, based on wires with a superconducting core inside a resistive sheath. The superconducting core allows low frequency currents to pass with negligible dissipation. Signals above the cutoff frequency are dissipated in the resistive part due to their small skin depth. The filters consist of twisted wire pairs shielded with copper tape. Above approximately 1 GHz, the attenuation is exponential in {radical}{omega}, as typical for skin depth based RF filters. By using additional capacitors of 10 nF per line, an attenuation of at least 45 dB above 10 MHz can be obtained. Thus, one single filter stage kept at mixing chamber temperature in a dilution refrigerator is sufficient to attenuate room temperature black body radiation to levels corresponding to 10 mK above about 10 MHz.

Bluhm, Hendrik; Moler, Kathryn A.; /Stanford U., Appl. Phys. Dept

2008-04-22T23:59:59.000Z

260

Piezoelectric MEMS resonator characterization and filter design  

E-Print Network [OSTI]

This thesis presents modeling and first measurements of a new piezoelectric MEMS resonator developed at Draper Laboratory. In addition, some simple filter designs incorporating the resonator with predicted performance ...

Kang, Joung-Mo, 1978-

2004-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Two in One: SCR on Filter  

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

1 BASF Corporation; 25 MiddlesexEssex Turnpike; Iselin, NJ 08830 USA 2 BASF Catalysts Germany GmbH; Freundallee 23, 30173 Hannover Two in One: SCR on Filter DEER 2010 2 Potential...

262

Emergency Filter for Low Pressure EGR  

Broader source: Energy.gov [DOE]

This project uses CFD simulation and laboratory tests to design single- and multi-layer mesh as an EGR emergency filter to prevent combustion particles from passing back to the engine.

263

Plasma Mass Filters For Nuclear Waste Reprocessing  

SciTech Connect (OSTI)

Practical disposal of nuclear waste requires high-throughput separation techniques. The most dangerous part of nuclear waste is the fission product, which contains the most active and mobile radioisotopes and produces most of the heat. We suggest that the fission products could be separated as a group from nuclear waste using plasma mass filters. Plasmabased processes are well suited to separating nuclear waste, because mass rather than chemical properties are used for separation. A single plasma stage can replace several stages of chemical separation, producing separate streams of bulk elements, fission products, and actinoids. The plasma mass filters may have lower cost and produce less auxiliary waste than chemical processing plants. Three rotating plasma configurations are considered that act as mass filters: the plasma centrifuge, the Ohkawa filter, and the asymmetric centrifugal trap.

Abraham J. Fetterman and Nathaniel J. Fisch

2011-05-26T23:59:59.000Z

264

Efficient implementation schemes for image enhancement filters  

E-Print Network [OSTI]

Generalized median filtering techniques that have appeared in previous literature suffer from some severe disadvantages. They are not only hardware intensive and time consuming but also tend to smear image edges. These shortcomings can be overcome...

Yusuf, Khadem Mahmud

2012-06-07T23:59:59.000Z

265

Onsite Wastewater Treatment Systems: Sand Filters  

E-Print Network [OSTI]

Sand filters are beds of granular material, or sand, drained from underneath so that pretreated wastewater can be treated, collected and distributed to a land application system. This publication explains the treatment, design, operation...

Lesikar, Bruce J.

2008-10-23T23:59:59.000Z

266

An optimal filtering algorithm for table constraints  

Science Journals Connector (OSTI)

Filtering algorithms for table constraints are constraint-based, which means that the propagation queue only contains information on the constraints that must be reconsidered. This paper proposes four efficient value-based algorithms for table constraints, ...

Jean-Baptiste Mairy; Pascal Van Hentenryck; Yves Deville

2012-10-01T23:59:59.000Z

267

Filtering Turbulent Sparsely Observed Geophysical Flows  

Science Journals Connector (OSTI)

Filtering sparsely turbulent signals from nature is a central problem of contemporary data assimilation. Here, sparsely observed turbulent signals from nature are generated by solutions of two-layer quasigeostrophic models with turbulent cascades ...

John Harlim; Andrew J. Majda

2010-04-01T23:59:59.000Z

268

Optimization of tunable silicon compatible microring filters  

E-Print Network [OSTI]

Microring resonators can be used as pass-band filters for wavelength division demultiplexing in electronic-photonic integrated circuits for applications such as analog-to-digital converters (ADCs). For high quality signal ...

Amatya, Reja

2008-01-01T23:59:59.000Z

269

Advanced filters and components for power applications  

E-Print Network [OSTI]

The objective of this thesis is to improve the high frequency performance of components and filters by better compensating the parasitic effects of practical components. The main application for this improvement is in ...

Neugebauer, Timothy Carl, 1975-

2004-01-01T23:59:59.000Z

270

Development of Self-destructing Filter Cake  

E-Print Network [OSTI]

chemical reaction rate, especially at high temperatures. This study describes a novel self-destructing drilling fluid system. Filter cakes are formed from a formula of drilling fluid that have a mixture of solid acid precursor and particulate solid acid...

Rostami, Ameneh

2010-08-24T23:59:59.000Z

271

A Fast Network Flow Model is used in conjunction with Measurements of Filter Permeability to calculate the Performance of Hot Gas Filters  

SciTech Connect (OSTI)

Two different technologies that are being considered for generating electric power on a large scale by burning coal are Pressurized Fluid Bed Combustion (PFBC) systems and Integrated Gasification and Combined Cycle (IGCC) systems. Particulate emission regulations that have been proposed for future systems may require that these systems be fitted with large scale Hot Gas Clean-Up (HGCU) filtration systems that would remove the fine particulate matter from the hot gas streams that are generated by PFBC and IGCC systems. These hot gas filtration systems are geometrically and aerodynamically complex. They typically are constructed with large arrays of ceramic candle filter elements (CFE). The successful design of these systems require an accurate assessment of the rate at which mechanical energy of the gas flow is dissipated as it passes through the filter containment vessel and the individual candle filter elements that make up the system. Because the filtration medium is typically made of a porous ceramic material having open pore sizes that are much smaller than the dimensions of the containment vessel, the filtration medium is usually considered to be a permeable medium that follows Darcy's law. The permeability constant that is measured in the lab is considered to be a function of the filtration medium only and is usually assumed to apply equally to all the filters in the vessel as if the flow were divided evenly among all the filter elements. In general, the flow of gas through each individual CFE will depend not only on the geometrical characteristics of the filtration medium, but also on the local mean flows in the filter containment vessel that a particular filter element sees. The flow inside the CFE core, through the system manifolds, and inside the containment vessel itself will be coupled to the flow in the filter medium by various Reynolds number effects. For any given filter containment vessel, since the mean flows are different in different locations inside the vessel, the flow of gas through an individual CFE will adjust itself to accommodate the local mean flows that prevail in its general location. In some locations this adjustment will take place at High Reynolds numbers and in other locations this will occur at low Reynolds numbers. The analysis done here investigates the nature of this coupling.

VanOsdol, J.G.; Chiang, T-K.

2002-09-19T23:59:59.000Z

272

Optimal multihump filter for photometric redshifts  

E-Print Network [OSTI]

We propose a novel type filter for multicolor imaging to improve on the photometric redshift estimation of galaxies. An extra filter - specific to a certain photometric system - may be utilized with high efficiency. We present a case study of the Hubble Space Telescope's Advanced Camera for Surveys and show that one extra exposure could cut down the mean square error on photometric redshifts by 34% over the z<1.3 redshift range.

Tamas Budavari; Alexander S. Szalay; Istvan Csabai; Andrew J. Connolly; Zlatan Tsvetanov

2001-06-05T23:59:59.000Z

273

Impedance Matched Absorptive Thermal Blocking Filters  

E-Print Network [OSTI]

We have designed, fabricated and characterized absorptive thermal blocking filters for cryogenic microwave applications. The transmission line filter's input characteristic impedance is designed to match $50\\,\\Omega$ and its response has been validated from 0-to-50\\,GHz. The observed return loss in the 0-to-20\\,GHz design band is greater than $20\\,$dB and shows graceful degradation with frequency. Design considerations and equations are provided that enable this approach to be scaled and modified for use in other applications.

Wollack, E J; Rostem, K; U-Yen, K

2014-01-01T23:59:59.000Z

274

E-Print Network 3.0 - adaptive notch filters Sample Search Results  

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

filters Search Powered by Explorit Topic List Advanced Search Sample search results for: adaptive notch filters...

275

E-Print Network 3.0 - active power filtering Sample Search Results  

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

filtering Search Powered by Explorit Topic List Advanced Search Sample search results for: active power filtering...

276

E-Print Network 3.0 - active power filter Sample Search Results  

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

filter Search Powered by Explorit Topic List Advanced Search Sample search results for: active power filter...

277

E-Print Network 3.0 - active power filters Sample Search Results  

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

filters Search Powered by Explorit Topic List Advanced Search Sample search results for: active power filters...

278

3-D woven, mullite matrix, composite filter  

SciTech Connect (OSTI)

Westinghouse, with Techniweave as a major subcontractor, is conducting a three-phase program aimed at providing advanced candle filters for a 1996 pilot scale demonstration in one of the two hot gas filter systems at Southern Company Service`s Wilsonville PSD Facility. The Base Program (Phases I and II) objective is to develop and demonstrate the suitability of the Westinghouse/Techniweave next generation composite candle filter for use in Pressurized Fluidized Bed Combustion (PFBC) and/or Integrated Gasification Combined Cycle (IGCC) power generation systems. The Optional Task (Phase M, Task 5) objective is to fabricate, inspect and ship to Wilsonville Hot gas particulate filters are key components for the successful commercializaion of advanced coal-based power-generation systems such as Pressurized Fluidized-bed Combustion (PFBC), including second-generation PFBC, and Integrated Gasification Combined Cycles (IGCC). Current generation monolithic ceramic filters are subject to catastrophic failure because they have very low resistance to crack propagation. To overcome this problem, a damage-tolerant ceramic filter element is needed.

Lane, J.E.; Painter, C.J.; Radford, K.C. LeCostaouec, J.F.

1995-12-01T23:59:59.000Z

279

Influence of steam injection and hot gas bypass on the performance and operation of a combined heat and power system using a recuperative cycle gas turbine  

Science Journals Connector (OSTI)

The influence of steam injection and hot gas bypass on the performance and operation of ... power (CHP) system using a recuperative cycle gas turbine was investigated. A full off-design analysis ... in steam gene...

Soo Young Kang; Jeong Ho Kim; Tong Seop Kim

2013-08-01T23:59:59.000Z

280

Scale-invariant filtering design and analysis for edge detection  

Science Journals Connector (OSTI)

...integral filter|scale-space smoothing|two-dimensional filtering...behaviour known as scale-space smoothing causing edges to deform...scale) of the filter. This smoothing effect distorts the original...ramps. Infinite symmetric exponential filter is also proposed by...

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Removal of residual particulate matter from filter media  

DOE Patents [OSTI]

A method for removing residual filter cakes that remain adhered to a filter after typical particulate removal methodologies have been employed, such as pulse-jet filter element cleaning, for all cleanable filters used for air pollution control, dust control, or powder control.

Almlie, Jay C; Miller, Stanley J

2014-11-11T23:59:59.000Z

282

Method of and apparatus for testing the integrity of filters  

DOE Patents [OSTI]

A method of and apparatus are disclosed for testing the integrity of individual filters or filter stages of a multistage filtering system including a diffuser permanently mounted upstream and/or downstream of the filter stage to be tested for generating pressure differentials to create sufficient turbulence for uniformly dispersing trace agent particles within the airstream upstream and downstream of such filter stage. Samples of the particle concentration are taken upstream and downstream of the filter stage for comparison to determine the extent of particle leakage past the filter stage. 5 figs.

Herman, R.L.

1985-05-07T23:59:59.000Z

283

S-shaped magnetic macroparticle filter for cathodic arc deposition  

SciTech Connect (OSTI)

A new magnetic macroparticle filter design consisting of two 90{sup o} filters forming an S-shape is described. Transport properties of this S-filter are investigated using Langmuir and deposition probes. It is shown that filter efficiency is product of the efficiencies of two 90{sup o} filters and the deposition rate is still acceptably high to perform thin film deposition. Films of amorphous hard carbon have been deposited using a 90{sup o} filter and the S-filter, and macroparticle content of the films are compared.

Anders, S.; Anders, A.; Dickinson, M.R.; MacGill, R.A.; Brown, I.G.

1996-04-01T23:59:59.000Z

284

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

DOE Patents [OSTI]

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.

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

2014-01-14T23:59:59.000Z

285

Reassessment of True Core Collapse Differential Pressure Values for Filter Elements in Safety Critical Environments - 13076  

SciTech Connect (OSTI)

As the areas of application for diverse filter types increases, the mechanics and material sciences associated with the hardware and its relationship with more and more arduous process environments becomes critical to the successful and reliable operation of the filtration equipment. Where the filter is the last safe barrier between the process and the life environment, structural integrity and reliability is paramount in both the validation and the ethical acceptability of the designed equipment. Core collapse is a key factor influencing filter element selection, and is an extremely complex issue with a number of variables and failure mechanisms. It is becoming clear that the theory behind core collapse calculations is not always supported with real tested data. In exploring this issue we have found that the calculation method is not always reflective of the true as tested collapse value, with the calculated values being typically in excess or even an order of magnitude higher than the tested values. The above claim is supported by a case study performed by the author, which disproves most of what was previously understood to be true. This paper also aims to explore the various failure mechanisms of different configurations of filter core, comparing calculated collapse values against real tested values, with a view to understanding a method of calculating their true collapse value. As the technology is advancing, and filter elements are being used in higher temperature, higher pressure, more radioactive and more chemically aggressive environments, confidence in core collapse values and data is crucial. (authors)

Swain, Adam [Porvair Filtration Group, 1 Concorde Close, Segensworth, Hampshire, PO15 5RT (United Kingdom)] [Porvair Filtration Group, 1 Concorde Close, Segensworth, Hampshire, PO15 5RT (United Kingdom)

2013-07-01T23:59:59.000Z

286

A bench scale study of a one-step dissolution process for treating contaminated fiberglass filters  

SciTech Connect (OSTI)

High efficiency mist eliminators (HEME) and high efficiency particulate air filters (HEPA) made of High fiberglass will be used at the Savannah River Site (SRS) to remove particulate matter from offgases generated during melter feed preparation and vitrification of high-level radioactive waste (HLW) at the Defense Waste Processing Facility (DWPF). These filters will be contaminated with high-level, radioactive species and also with various high-boiling organic compounds. For this reason, a process was developed at the Savannah River Technology Center (SRTC) that will dissolve the spent filters so that the residues may be recycled to the HLW tanks for eventual vitrification. This process involves boiling the filters sequentially in NaOH, HN0{sub 3} and NaOH, while contained in a stainless steal wire mesh frame assembly. The objective of this communication is to present some of the original preliminary work done by Ritter on the simple one-step dissolution process. The results from six bench-scale experiments are reported for the dissolution of an organically-fouled sample of HEME obtained from the Integrated DWPF Melter (IDMS) offgas filtration system. The preliminary effects of filter packing density, air sparging versus rotating basket agitation, fouling, and adding Triton X-405 as a dispersing agent are reported.

Policke, T.A.; Ritter, J.A.

1995-12-01T23:59:59.000Z

287

Evaluation of Technologies to Remove Suspended Solids from Waste Water  

SciTech Connect (OSTI)

The Effluent Treatment Facility (ETF) at the Savannah River Site utilizes pH adjustment, submicron filtration, Hg removal resin, activated carbon, reverse osmosis, cationic exchange, and evaporation to remove contaminants from radioactive waste water. After startup, the ETF had difficulty achieving design capacity. The primary problem was fouling of the ceramic microfilters. Typical filter flow rates were only 20 percent of design capacity.A research program was conducted to identify and evaluate technologies for improving suspended solids removal from radioactive wastewater at the Savannah River Site. Technolgies investigated were a ceramic microfilter, a tubular polymeric ultrafilter, two porous metal filters, a polymeric centrifugal ultrafilter, a deep bed filter, a backwashable cartridge filter, a fabric filter, and a centriguge.

Poirier, M.R.

1999-03-15T23:59:59.000Z

288

Carbon fiber composite molecular sieve electrically regenerable air filter media  

DOE Patents [OSTI]

An electrically regenerable gas filter system includes a carbon fiber composite molecular sieve (CFCMS) filter medium. After a separate medium-efficiency pre-filter removes particulate from the supply airstream, the CFCMS filter sorbs gaseous air pollutants before the air is recirculated to the space. When saturated, the CFCMS media is regenerated utilizing a low-voltage current that is caused to pass through the filter medium.

Wilson, Kirk A. (Knoxville, TN); Burchell, Timothy D. (Oak Ridge, TN); Judkins, Roddie R. (Knoxville, TN)

1998-01-01T23:59:59.000Z

289

Carbon fiber composite molecular sieve electrically regenerable air filter media  

DOE Patents [OSTI]

An electrically regenerable gas filter system includes a carbon fiber composite molecular sieve (CFCMS) filter medium. After a separate medium-efficiency pre-filter removes particulate from the supply air stream, the CFCMS filter sorbs gaseous air pollutants before the air is recirculated to the space. When saturated, the CFCMS media is regenerated utilizing a low-voltage current that is caused to pass through the filter medium. 3 figs.

Wilson, K.A.; Burchell, T.D.; Judkins, R.R.

1998-10-27T23:59:59.000Z

290

Synthesis of Complex Subband Hybrid Filter Banks A/D Converters using Adaptive Filters  

E-Print Network [OSTI]

Synthesis of Complex Subband Hybrid Filter Banks A/D Converters using Adaptive Filters Zhiguo Song. This synthesis method is validated for a complex subband HFB by simulation in the time-domain. I. INTRODUCTION (analysis bank), a conversion-stage (ADC bank) and a digital reconstruction (synthesis bank). With a given

Paris-Sud XI, Université de

291

Technology Roadmaps  

Broader source: Energy.gov [DOE]

This page contains links to DOE's Technology Roadmaps, multi-year plans outlining solid-state lighting goals, research and development initiatives aimed at accelerating technology advances and...

292

Technology Development  

Science Journals Connector (OSTI)

In presenting this chapter on technology development, it must be stated that attempts to make an up-to-date technology survey are restricted, unfortunately, by the proprietary nature of recent advances, detail...

B. E. Conway

1999-01-01T23:59:59.000Z

293

Characterization of Filter Elements for Service in a Coal Gasification Environment  

SciTech Connect (OSTI)

The Power Systems Development Facility (PSDF) is a joint Department of Energy/Industry sponsored engineering-scale facility for testing advanced coal-based power generation technologies. High temperature, high pressure gas cleaning is critical to many of these advanced technologies. Barrier filter elements that can operate continuously for nearly 9000 hours are required for a successful gas cleaning system for use in commercial power generation. Since late 1999, the Kellogg Brown & Root Transport reactor at the PSDF has been operated in gasification mode. This paper describes the test results for filter elements operating in the Siemens-Westinghouse particle collection device (PCD) with the Transport reactor in gasification mode. Operating conditions in the PCD have varied during gasification operation as described elsewhere in these proceedings (Martin et al, 2002).

Spain, J.D.

2002-09-19T23:59:59.000Z

294

Hot gas filter and system assembly  

DOE Patents [OSTI]

A filter element for separating fine dirty particles from a hot gas. The filter element comprises a first porous wall and a second porous wall. Each porous wall has an outer surface and an inner surface. The first and second porous walls being coupled together thereby forming a substantially closed figure and open at one end. The open end is formed to be coupled to a hot gas clean up system support structure. The first and second porous walls define a channel beginning at the open end and terminate at the closed end through which a filtered clean gas can flow through and out into the clean gas side of a hot gas clean up system.

Lippert, Thomas Edwin (Murrysville, PA); Palmer, Kathryn Miles (Monroeville, PA); Bruck, Gerald Joseph (Murrysville, PA); Alvin, Mary Anne (Pittsburgh, PA); Smeltzer, Eugene E. (Export, PA); Bachovchin, Dennis Michael (Murrysville, PA)

1999-01-01T23:59:59.000Z

295

Secondary Pollutants from Ozone Reaction with Ventilation Filters and Degradation of Filter Media Additives  

SciTech Connect (OSTI)

Prior research suggests that chemical processes taking place on the surface of particle filters employed in buildings may lead to the formation of harmful secondary byproducts. We investigated ozone reactions with fiberglass, polyester, cotton/polyester and polyolefin filter media, as well as hydrolysis of filter media additives. Studies were carried out on unused media, and on filters that were installed for 3 months in buildings at two different locations in the San Francisco Bay Area. Specimens from each filter media were exposed to {approx}150 ppbv ozone in a flow tube under a constant flow of dry or humidified air (50percent RH). Ozone breakthrough was recorded for each sample over periods of {approx}1000 min; the ozone uptake rate was calculated for an initial transient period and for steady-state conditions. While ozone uptake was observed in all cases, we did not observe significant differences in the uptake rate and capacity for the various types of filter media tested. Most experiments were performed at an airflow rate of 1.3 L/min (face velocity = 0.013 m/s), and a few tests were also run at higher rates (8 to 10 L/min). Formaldehyde and acetaldehyde, two oxidation byproducts, were quantified downstream of each sample. Those aldehydes (m/z 31 and 45) and other volatile byproducts (m/z 57, 59, 61 and 101) were also detected in real-time using Proton-Transfer Reaction - Mass Spectrometry (PTR-MS). Low-ppbv byproduct emissions were consistently higher under humidified air than under dry conditions, and were higher when the filters were loaded with particles, as compared with unused filters. No significant differences were observed when ozone reacted over various types of filter media. Fiberglass filters heavily coated with impaction oil (tackifier) showed higher formaldehyde emissions than other samples. Those emissions were particularly high in the case of used filters, and were observed even in the absence of ozone, suggesting that hydrolysis of additives, rather than ozonolysis, is the main formaldehyde source in those filters. Emission rates of formaldehyde and acetaldehyde were not found to be large enough to substantially increase indoor concentrations in typical building scenarios. Nevertheless, ozone reactions on HVAC filters cannot be ignored as a source of low levels of indoor irritants.

Destaillats, Hugo; Chen, Wenhao; Apte, Michael; Li, Nuan; Spears, Michael; Almosni, Jérémie; Brunner, Gregory; Zhang, Jianshun (Jensen); Fisk, William J.

2011-05-01T23:59:59.000Z

296

Experimental noise filtering by quantum control  

E-Print Network [OSTI]

Instabilities due to extrinsic interference are routinely faced in systems engineering, and a common solution is to rely on a broad class of $\\textit{filtering}$ techniques in order to afford stability to intrinsically unstable systems. For instance, electronic systems are frequently designed to incorporate electrical filters composed of, $\\textit{e.g.}$ RLC components, in order to suppress the effects of out-of-band fluctuations that interfere with desired performance. Quantum coherent systems are now moving to a level of complexity where challenges associated with realistic time-dependent noise are coming to the fore. Unfortunately, standard control solutions involving feedback are generally impossible due to the strictures of quantum mechanics, and existing error-suppressing gate constructions generally rely on unphysical bang-bang controls or quasi-static error models that do not reflect realistic laboratory environments. In this work we use the theory of quantum control engineering and experiments with trapped $^{171}$Yb$^{+}$ ions to demonstrate the construction of novel $\\textit{noise filters}$ which are specifically designed to mitigate the effect of realistic time-dependent fluctuations on qubits \\emph{during useful operations}. Starting with desired filter characteristics and the Walsh basis functions, we use a combination of analytic design rules and numeric search to construct time-domain noise filters tailored to a desired state transformation. Our results validate the generalized filter-transfer function framework for arbitrary quantum control operations, and demonstrate that it can be leveraged as an effective and efficient tool for developing novel robust control protocols.

A. Soare; H. Ball; D. Hayes; J. Sastrawan; M. C. Jarratt; J. J. McLoughlin; X. Zhen; T. J. Green; M. J. Biercuk

2014-04-03T23:59:59.000Z

297

Department of Engineering Technology Technology Education  

E-Print Network [OSTI]

Department of Engineering Technology Technology Education A Teacher Education Program New Jersey Institute of Technology #12;WHAT WILL YOU LEARN? Technology teachers teach problem-based learning utilizing math, science and technology principles. Technological studies involve students: · Designing

Bieber, Michael

298

Electrically heated particulate filter using catalyst striping  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine is provided. The system generally includes a particulate filter (PF) that filters particulates from the exhaust wherein an upstream end of the PF receives exhaust from the engine. A grid of electrically resistive material is applied to an exterior upstream surface of the PF and selectively heats exhaust passing through the grid to initiate combustion of particulates within the PF. A catalyst coating is applied to the PF that increases a temperature of the combustion of the particulates within the PF.

Gonze, Eugene V; Paratore, Jr., Michael J; Ament, Frank

2013-07-16T23:59:59.000Z

299

Electrically heated particulate filter with reduced stress  

DOE Patents [OSTI]

A system comprises a particulate matter (PM) filter comprising an inlet for receiving exhaust gas. A zoned heater is arranged in the inlet and comprises a resistive heater comprising N zones, where N is an integer greater than one. Each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates others of the N zones.

Gonze, Eugene V.

2013-03-05T23:59:59.000Z

300

Multichannel image regularization using anisotropic geodesic filtering  

SciTech Connect (OSTI)

This paper extends a recent image-dependent regularization approach introduced in aiming at edge-preserving smoothing. For that purpose, geodesic distances equipped with a Riemannian metric need to be estimated in local neighbourhoods. By deriving an appropriate metric from the gradient structure tensor, the associated geodesic paths are constrained to follow salient features in images. Following, we design a generalized anisotropic geodesic filter; incorporating not only a measure of the edge strength, like in the original method, but also further directional information about the image structures. The proposed filter is particularly efficient at smoothing heterogeneous areas while preserving relevant structures in multichannel images.

Grazzini, Jacopo A [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Available Technologies  

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

6 News Stories (and older) 6 News Stories (and older) 12.21.2005___________________________________________________________________ Genzyme acquires gene therapy technology invented at Berkeley Lab. Read more here. 07.19.2005 _________________________________________________________________ Symyx, a start up company using Berkeley Lab combinatorial chemistry technology licensed by the Technology Transfer Department and developed by Peter Schultz and colleagues in the Materials Sciences Division, will be honored with Frost & Sullivan's 2005 Technology Leadership Award at their Excellence in Emerging Technologies Awards Banquet for developing enabling technologies and methods to aid better, faster and more efficient R&D. Read more here. 07.11.2005 _________________________________________________________________ Nanosys, Inc., a Berkeley Lab startup, is among the solar nanotech companies investors along Sand Hill Road in Menlo Park hope that thinking small will translate into big profits. Read more here.

302

INEEL/EXT-97-  

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

974 974 U.S. Department of Energy FreedomCAR & Vehicle Technologies Oil Bypass Filter Technology Evaluation Third Quarterly Report April-June 2003 Larry Zirker James Francfort August 2003 Idaho National Engineering and Environmental Laboratory Bechtel BWXT Idaho, LLC INEEL/EXT-03-00974 U.S. Department of Energy FreedomCAR & Vehicle Technologies Oil Bypass Filter Technology Evaluation Third Quarterly Report April-June 2003 Larry Zirker James Francfort August 2003 Idaho National Engineering and Environmental Laboratory Transportation Technology and Infrastructure Department Idaho Falls, Idaho 83415 Prepared for the U.S. Department of Energy Assistant Secretary for Energy Efficiency and Renewable Energy Under DOE Idaho Operations Office

303

Fuel Property, Emission Test, and Operability Results from a Fleet of Class 6 Vehicles Operating on Gas-to-Liquid Fuel and Catalyzed Diesel Particle Filters  

SciTech Connect (OSTI)

A fleet of six 2001 International Class 6 trucks operating in southern California was selected for an operability and emissions study using gas-to-liquid (GTL) fuel and catalyzed diesel particle filters (CDPF). Three vehicles were fueled with CARB specification diesel fuel and no emission control devices (current technology), and three vehicles were fueled with GTL fuel and retrofit with Johnson Matthey's CCRT diesel particulate filter. No engine modifications were made.

Alleman, T. L.; Eudy, L.; Miyasato, M.; Oshinuga, A.; Allison, S.; Corcoran, T.; Chatterjee, S.; Jacobs, T.; Cherrillo, R. A.; Clark, R.; Virrels, I.; Nine, R.; Wayne, S.; Lansing, R.

2005-11-01T23:59:59.000Z

304

Autoassociative neural networks and noise filtering  

Science Journals Connector (OSTI)

We introduce linear autoassociative neural (AN) network filters for the removal of additive noise from one-dimensional (1-D) time series. The AN network will have a (2M+1)×L×(2M+1) architecture, and for M fixed, we show how to choose ...

J.R. Dorronsoro; V. Lopez; C.S. Cruz; J.A. Siguenza

2003-05-01T23:59:59.000Z

305

Evaluation and Conversation in Collaborative Filtering  

E-Print Network [OSTI]

laid down by the university. Rachael Rafter October 2010 ii #12;For My Parents, Helen and Maurice iii collaborative filtering, I find myself suddenly lost for words when I try to express what these people mean, albeit the academic one. And to my parents, Maurice and Helen.....what can I say....there are no words

Hammerton, James

306

Document Filtering With Inference Networks Jamie Callan  

E-Print Network [OSTI]

Document Filtering With Inference Networks Jamie Callan Computer Science Department University document ltering. The prob- lems of document retrieval and document ltering are sim- ilar at an abstract- mation available, are all di erent. This paper describes a new statistical document ltering system called

Callan, Jamie

307

E-Print Network 3.0 - adaptive information filtering Sample Search...  

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

information filtering Page: << < 1 2 3 4 5 > >> 1 Applications of the Fourier Transform in Imaging Highpass and Lowpass Filters Summary: filters. The following was prelimi-...

308

Investigation of IAQ-Relevant Surface Chemistry and Emissions on HVAC Filter Materials  

E-Print Network [OSTI]

VOCs emitted by reactions of HVAC filters with ozone usingand Emissions on HVAC Filter Materials Hugo Destaillats andChemistry and Emissions on HVAC Filter Materials Authors:

Destaillats, Hugo

2010-01-01T23:59:59.000Z

309

Fuel Technologies  

Broader source: Energy.gov [DOE]

Presentation from the U.S. DOE Office of Vehicle Technologies "Mega" Merit Review 2008 on February 25, 2008 in Bethesda, Maryland.

310

Layering Technologies  

Science Journals Connector (OSTI)

Planar technology requires that thin layers of materials be formed and patterned sequentially, commencing with a flat rigid substrate. The key aspects of each layer are its Thi...

Ivor Brodie; Julius J. Muray

1992-01-01T23:59:59.000Z

311

Wavelets and multirate filter banks : theory, structure, design, and applications  

E-Print Network [OSTI]

Wavelets and filter banks have revolutionized signal processing with their ability to process data at multiple temporal and spatial resolutions. Fundamentally, continuous-time wavelets are governed by discrete-time filter ...

Chen, Ying-Jui, 1972-

2004-01-01T23:59:59.000Z

312

Tracking moving radar targets with parallel, velocity-tuned filters  

DOE Patents [OSTI]

Radar data associated with radar illumination of a movable target is processed to monitor motion of the target. A plurality of filter operations are performed in parallel on the radar data so that each filter operation produces target image information. The filter operations are defined to have respectively corresponding velocity ranges that differ from one another. The target image information produced by one of the filter operations represents the target more accurately than the target image information produced by the remainder of the filter operations when a current velocity of the target is within the velocity range associated with the one filter operation. In response to the current velocity of the target being within the velocity range associated with the one filter operation, motion of the target is tracked based on the target image information produced by the one filter operation.

Bickel, Douglas L.; Harmony, David W.; Bielek, Timothy P.; Hollowell, Jeff A.; Murray, Margaret S.; Martinez, Ana

2013-04-30T23:59:59.000Z

313

Tunable, oblique incidence resonant grating filter for telecommunications  

Science Journals Connector (OSTI)

We have designed a tunable, oblique-incidence resonant grating filter that covers the C band as an add-drop device for incident TE-polarized light. We tune the filter by tilting a...

Niederer, Guido; Herzig, Hans Peter; Shamir, Joseph; Thiele, Hans; Schnieper, Marc; Zschokke, Christian

2004-01-01T23:59:59.000Z

314

Design of reflective phase compensator filters for telecommunications  

Science Journals Connector (OSTI)

Reflective phase compensator (RPC) filters provide a solution to the phase-dispersion problem of narrow bandpass (NBP) filters when the data rate is 40 Gbits/s or greater. By use of an...

Noe, Tony D

2002-01-01T23:59:59.000Z

315

Novel rf mems tunable filters with adjustable spurious suppression  

E-Print Network [OSTI]

This thesis presents the theory and design of fixed and Radio Frequency (RF) Microelectromechanical Systems (MEMS) -based tunable microwave filters for RF and microwave applications. The methodology for the design of coupled resonator filters...

Sekar, Vikram

2009-05-15T23:59:59.000Z

316

Diesel Particulate Filters and NO2 Emission Limits | Department...  

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

Filters and NO2 Emission Limits Diesel Particulate Filters and NO2 Emission Limits EPAs New air quality standards for NO2 will impact future DPF designs deer09ibrahim.pdf More...

317

Preparation of Metal Filter Element for Fail Safety in IGCC Filter Unit  

SciTech Connect (OSTI)

Metal filter elements as the fail safety filter are fabricated by the methods using cold isostatic pressure (compress method) and binder (binder method) to form the filter element and tested in a experimental and bench units. The fail safety filter on the filtration system is mounted additionally in order to intercept the particle leak when the main filter element is broken. So it should have two contrary functions of a high permeability and being plugged easily. The filter element having high porosity and high plugging property was fabricated by the bind method. It has the porosity more than 50%, showed very small pressure drop less than 10mmH2O at the face velocity of 0.15m/s, and plugged within 5 minutes with the inhibition of the particle leak larger than 4 {micro}m. The test result of corrosion tendency in IGCC gas stream at 500 C shows SUS310L material is very reasonable among SUS310, SUS316, Inconel 600, and Hastelloy X.

Choi, J-H.; Ahn, I-S.; Bak, Y-C.; Bae, S-Y.; Ha, S-J.; Jang, H-J.

2002-09-18T23:59:59.000Z

318

Photometry Transformation from $RGB$ Bayer Filter System to Johnson-Cousins $BVR$ Filter System  

E-Print Network [OSTI]

The $RGB$ Bayer filter system consists of mosaic $R$, $G$, and $B$ filters on the grid of photo sensors which typical commercial DSLR (Digital Single Lens Reflex) cameras and CCD cameras are equipped with. Many unique astronomical data obtained using a $RGB$ Bayer filter system are available, including transient objects, e.g., supernovae, variable stars, and solar system bodies. The utilization of such data in scientific research strongly requires reliable photometry transformation methods. In this work, we develop a series of equations to convert the observed magnitudes in the $RGB$ Bayer filter system ($R_B$, $G_B$, and $B_B$) into the Johnson-Cousins $BVR$ filter system ($B_J$, $V_J$, and $R_C$). The new transformation equations derive the calculated magnitudes in Johnson-Cousins filters ($B_{Jcal}$, $V_{Jcal}$, and $R_{Ccal}$) as functions of magnitudes and colors. The mean differences between the transformed magnitudes and original magnitudes, i.e., the residuals, are $\\Delta(B_J-B_{Jcal})$ = 0.104 mag, ...

Park, Woojin; Shim, Hyunjin; Le, Huynh Anh N; Im, Myungshin; Chang, Seunghyuk; Yu, Joonkyu

2015-01-01T23:59:59.000Z

319

On-Site Wastewater Treatment Systems: Trickling Filter  

E-Print Network [OSTI]

Soil absorption field Septic tank Clarifier/Dosing tank Trickling filter On-site wastewater treatment systems Trickling filter Bruce Lesikar and Russell Persyn Extension Agricultural Engineering Specialist, Extension Assistant-Water Conservation... municipal wastewater before cities began using activated sludge aeration systems. Now, homes and businesses use trickling filters in on-site wastewater treatment systems. Each trickling filter system has several components: 3 A septic tank, which removes...

Lesikar, Bruce J.

2000-02-04T23:59:59.000Z

320

Filter:Incentives by Efficiency or Renewable | Open Energy Information  

Open Energy Info (EERE)

EnergyCat. Retrieved from "http:en.openei.orgwindex.php?titleFilter:IncentivesbyEfficiencyorRenewable&oldid26622...

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

NETL: Combustion Technologies  

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

Detailed Description of APFBC Repowering Detailed Description of APFBC Repowering FBC Repower Simple Description Detailed Description APFBC Specs GTs for APFBC Click on picture to enlarge Repowering Existing Power Plants with Advanced Pressurized Fluidized-Bed Combined Cycles Contents: Please send me to the NON-TECHNICAL DISCUSSION about APFBC instead! Click on the technical discussion areas below, or simply browse down in this page: APFBC Repowering Considerations Process Sketch APFBC Components High Energy Efficiency Excellent Environmental Performance Cost Comparable to a Pulverized Coal Plant APFBC Repowering Considerations Click on picture to enlarge Process Sketch While all elements of the APFBC plant have been tested, APFBC technology is still under development. Test programs are in place that will soon show commercial operations for all parts. The most important of these are the DOE Power Systems Development Facility in Wilsonville, Alabama, and two DOE Clean Coal Technology projects: Piñon Pines, testing ceramic filters, and the APFBC CCT project. DOE views the following as the development status of the various elements for application in a year 2002 repowering plant installation:

322

Glass Technology  

Science Journals Connector (OSTI)

... WE have received from the Department of Glass Technology, University of Sheffield, a copy of vol. ii. of “Experimental Researches ... that department. The papers included have already appeared in the Journal of the Society of Glass Technology. They range over a somewhat wide field of the ...

1920-08-23T23:59:59.000Z

323

NREL: Technology Deployment - Technology Acceleration  

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

assistance to federal and private industry to help address market barriers to sustainable energy technologies. Learn more about NREL's work in the following areas:...

324

A MECHANISTIC MODEL FOR PARTICLE DEPOSITION IN DIESEL PARTICLUATE FILTERS USING THE LATTICE-BOLTZMANN TECHNIQUE  

SciTech Connect (OSTI)

Cordierite diesel particulate filters (DPFs) offer one of the most promising aftertreatment technologies to meet the quickly approaching EPA 2007 heavy-duty emissions regulations. A critical, yet poorly understood, component of particulate filter modeling is the representation of soot deposition. The structure and distribution of soot deposits upon and within the ceramic substrate directly influence many of the macroscopic phenomenon of interest, including filtration efficiency, back pressure, and filter regeneration. Intrinsic soot cake properties such as packing density and permeability coefficients remain inadequately characterized. The work reported in this paper involves subgrid modeling techniques which may prove useful in resolving these inadequacies. The technique involves the use of a lattice Boltzmann modeling approach. This approach resolves length scales which are orders of magnitude below those typical of a standard computational fluid dynamics (CFD) representation of an aftertreatment device. Individual soot particles are introduced and tracked as they move through the flow field and are deposited on the filter substrate or previously deposited particles. Electron micrographs of actual soot deposits were taken and compared to the model predictions. Descriptions of the modeling technique and the development of the computational domain are provided. Preliminary results are presented, along with some comparisons with experimental observations.

Stewart, Mark L.; Rector, David R.; Muntean, George G.; Maupin, Gary D.

2004-08-01T23:59:59.000Z

325

Vehicle Technologies Office: Vehicle Technologies Office Recognizes  

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

Vehicle Technologies Vehicle Technologies Office Recognizes Outstanding Researchers to someone by E-mail Share Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Facebook Tweet about Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Twitter Bookmark Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Google Bookmark Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Delicious Rank Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on Digg Find More places to share Vehicle Technologies Office: Vehicle Technologies Office Recognizes Outstanding Researchers on AddThis.com...

326

Vehicle Technologies Office: Graduate Automotive Technology Education  

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

Deployment Deployment Site Map Printable Version Share this resource Send a link to Vehicle Technologies Office: Graduate Automotive Technology Education (GATE) to someone by E-mail Share Vehicle Technologies Office: Graduate Automotive Technology Education (GATE) on Facebook Tweet about Vehicle Technologies Office: Graduate Automotive Technology Education (GATE) on Twitter Bookmark Vehicle Technologies Office: Graduate Automotive Technology Education (GATE) on Google Bookmark Vehicle Technologies Office: Graduate Automotive Technology Education (GATE) on Delicious Rank Vehicle Technologies Office: Graduate Automotive Technology Education (GATE) on Digg Find More places to share Vehicle Technologies Office: Graduate Automotive Technology Education (GATE) on AddThis.com...

327

Building Technologies Office: Emerging Technologies Activities  

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

Emerging Technologies Emerging Technologies Activities to someone by E-mail Share Building Technologies Office: Emerging Technologies Activities on Facebook Tweet about Building Technologies Office: Emerging Technologies Activities on Twitter Bookmark Building Technologies Office: Emerging Technologies Activities on Google Bookmark Building Technologies Office: Emerging Technologies Activities on Delicious Rank Building Technologies Office: Emerging Technologies Activities on Digg Find More places to share Building Technologies Office: Emerging Technologies Activities on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research Windows, Skylights, & Doors Research Space Heating & Cooling Research Water Heating Research

328

Electrically heated particulate filter preparation methods and systems  

DOE Patents [OSTI]

A control system that controls regeneration of a particulate filter is provided. The system generally includes a fuel control module that controls injection of fuel into exhaust that passes through the particulate filter. A regeneration module controls current to the particulate filter to initiate regeneration after the fuel has been injected into the exhaust.

Gonze, Eugene V [Pinckney, MI

2012-01-31T23:59:59.000Z

329

Measurement of MTF Target Plasma Temperature Using Filtered Silicon Photodiodes  

E-Print Network [OSTI]

Measurement of MTF Target Plasma Temperature Using Filtered Silicon Photodiodes Presented at the 40 Plasma Temperature Using Filtered Silicon Photodiodes Magnetized Target Fusion (MTF) is an approach photodiodes, and a plasma-density interferometer. The data obtained from the array of seven filtered silicon

330

Atmospheric Environment 41 (2007) 31513160 Ozone removal by HVAC filters  

E-Print Network [OSTI]

Atmospheric Environment 41 (2007) 3151­3160 Ozone removal by HVAC filters P. Zhao, J.A. Siegel�, R May 2006; accepted 14 June 2006 Abstract Residential and commercial HVAC filters that have been loaded of the relative importance of HVAC filters as a removal mechanism for ozone in residential and commercial

Siegel, Jeffrey

331

Parameter Estimation Using Dual Fractional Power Filters Jason M. Kinser  

E-Print Network [OSTI]

by the user, they only have to be contained within the training set. A dual filter system will be created from an unknown input from the training set was operated on by the filter the constraint value associatedParameter Estimation Using Dual Fractional Power Filters Jason M. Kinser The Institute

Kinser, Jason M.

332

Electrically-Assisted Diesel Particulate Filter Regeneration  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

333

Durability of Diesel Engine Particulate Filters  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

334

Electrically-Assisted Diesel Particulate Filter Regeneration  

Broader source: Energy.gov [DOE]

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

335

Durability of Diesel Engine Particulate Filters  

Broader source: Energy.gov [DOE]

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

336

Analog FIR Filter Used for Range-Optimal Pulsed Radar Applications  

E-Print Network [OSTI]

of implementing the matched filter with an analog FIR filter is proposed. The FIR filter provides a linear phase response which is suitable for radar applications. Analog FIR filters can be implemented in the discrete domain, requiring operational amplifiers...

Su, Eric Chen

2014-08-13T23:59:59.000Z

337

Building Technologies Office: Emerging Technologies  

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

Creating the Next Generation of Energy Efficient Technology Creating the Next Generation of Energy Efficient Technology The Emerging Technologies team partners with national laboratories, industry, and universities to advance research, development, and commercialization of energy efficient and cost effective building technologies. These partnerships help foster American ingenuity to develop cutting-edge technologies that have less than 5 years to market readiness, and contribute to the goal to reduce energy consumption by at least 50%. Sandia Cooler's innovative, compact design combines a fan and a finned metal heat sink into a single element, efficiently transferring heat in microelectronics and reducing energy use. Supporting Innovative Research to Help Reduce Energy Use and Advance Manufacturing Learn More

338

Quantum graph as a quantum spectral filter  

SciTech Connect (OSTI)

We study the transmission of a quantum particle along a straight input-output line to which a graph {Gamma} is attached at a point. In the point of contact we impose a singularity represented by a certain properly chosen scale-invariant coupling with a coupling parameter {alpha}. We show that the probability of transmission along the line as a function of the particle energy tends to the indicator function of the energy spectrum of {Gamma} as {alpha}{yields}{infinity}. This effect can be used for a spectral analysis of the given graph {Gamma}. Its applications include a control of a transmission along the line and spectral filtering. The result is illustrated with an example where {Gamma} is a loop exposed to a magnetic field. Two more quantum devices are designed using other special scale-invariant vertex couplings. They can serve as a band-stop filter and as a spectral separator, respectively.

Turek, Ondrej; Cheon, Taksu [Laboratory of Physics, Kochi University of Technology, Tosa Yamada, Kochi 782-8502 (Japan)] [Laboratory of Physics, Kochi University of Technology, Tosa Yamada, Kochi 782-8502 (Japan)

2013-03-15T23:59:59.000Z

339

Probing Aerogels by Multiple Quantum Filtered 131Xe NMR Spectroscopy  

Science Journals Connector (OSTI)

This is demonstrated in Figure 1 where four pulse sequences using multiple quantum filters are shown. ... Pyrex tube at 7.4 T, 1.2 MPa, and 298 K:? (a) double-quantum filtered pulse sequence, (b) magic-angle double-quantum filter which is a T2,±1 pulse sequence, (c) triple-quantum filtered sequence, and (d) triple-quantum filtered inversion recovery pulse sequence. ... 14-16 The tubes have been filled with aerogel fragments of a few millimeter diameter and were pressurized with xenon to about 6.9 MPa at 298 K to create supercritical conditions. ...

Thomas Meersmann; Michaël Deschamps; Geoffrey Bodenhausen

2001-01-13T23:59:59.000Z

340

Compact cyclone filter train for radiological and hazardous environments  

DOE Patents [OSTI]

A compact cyclone filter train is disclosed for the removal of hazardous and radiological particles from a gaseous fluid medium. This filter train permits a small cyclone separator to be used in a very small space envelope due to the arrangement of the filter housing adjacent to the separator with the cyclone separator and the filters mounted on a plate. The entire unit will have a hoist connection at the center of gravity so that the entire unit including the separator, the filters, and the base can be lifted and repositioned as desired. 3 figs.

Bench, T.R.

1998-04-28T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Adaptive filters for detection of gravitational waves from coalescing binaries  

SciTech Connect (OSTI)

In this work we propose use of infinite impulse response adaptive line enhancer (IIR ALE) filters for detection of gravitational waves from coalescing binaries. We extend our previous work and define an adaptive matched filter structure. Filter performance is analyzed in terms of the tracking capability and determination of filter parameters. Furthermore, following the Neyman-Pearson strategy, receiver operating characteristics are derived, with closedform expressions for detection threshold, false alarm, and detection probability. Extensive tests demonstrate the effectiveness of adaptive filters both in terms of small computational cost and robustness.

Eleuteri, Antonio; Milano, Leopoldo; De Rosa, Rosario; Garufi, Fabio; Acernese, Fausto; Barone, Fabrizio; Giordano, Lara; Pardi, Silvio [Dip. di Scienze Fisiche, Universita di Napoli 'Federico II', via Cintia, I-80126 Naples (Italy) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy); Dip. di Scienze Farmaceutiche, Universita di Salerno, via Ponte Don Melillo, 84084 Fisciano (Saudi Arabia) (IT) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy); Dip. di Matematica ed Applicazioni, Universita di Napoli 'Federico II', via Cintia, I-80126 Naples (Italy) and INFN sez. Napoli, via Cintia, I-80126 Naples (Italy)

2006-06-15T23:59:59.000Z

342

Generator powered electrically heated diesel particulate filter  

DOE Patents [OSTI]

A control circuit for a vehicle powertrain includes a switch that selectivity interrupts current flow between a first terminal and a second terminal. A first power source provides power to the first terminal and a second power source provides power to the second terminal and to a heater of a heated diesel particulate filter (DPF). The switch is opened during a DPF regeneration cycle to prevent the first power source from being loaded by the heater while the heater is energized.

Gonze, Eugene V; Paratore, Jr., Michael J

2014-03-18T23:59:59.000Z

343

CeraMem Filter Development Program  

SciTech Connect (OSTI)

In gasification systems, the ash and char that is suspended in the syngas stream must be removed prior to the gas stream`s introduction to other downstream air pollution control systems (e.g., hydrogen sulfide removal). The char, once captured, can be reinjected into the gasification reactors to increase the overall system efficiency. If the ash and char are not captured before the other downstream equipment, these solids can foul process piping or columns and cause downtime for the entire system. This paper describes, in general, a development program between Ceramem Separations and Foster Wheeler for a high temperature ceramic filtration system to be sold by their partnership, CeraFilter L.P. In addition, detailed test results of ceramic filters operating at conditions approaching those of high temperature combustors are discussed. The successful development of this hot gas filtration system based upon the Ceramem ceramic-membrane-coated, monolithic filter will help address the critical challenges of particulate removal under the severe conditions imposed by advanced fossil energy power systems.

Bishop, B. [CeraMem Corp., Waltham, MA (United States); Raskin, N. [CeraFilter L.P., San Diego, CA (United States)

1996-12-31T23:59:59.000Z

344

Technology Analysis  

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

* Heavy Vehicle Technologies * Heavy Vehicle Technologies * Multi-Path Transportation Futures * Idling Studies * EDrive Vehicle Monthly Sales Transportation Research and Analysis Computing Center Working With Argonne Contact TTRDC Technology Analysis truck Heavy vehicle techologies are one subject of study. Research Reducing Greenhouse Gas Emissions from U.S. Transportation Heavy Vehicle Technologies Multi-Path Transportation Futures Study Idling Studies Light Duty Electric Drive Vehicles Monthly Sales Updates Lithium-Ion Battery Recycling and Life Cycle Analysis Reports Propane Vehicles: Status, Challenges, and Opportunities (pdf; 525 kB) Natural Gas Vehicles: Status, Barriers, and Opportunities (pdf; 696 kB) Regulatory Influences That Will Likely Affect Success of Plug-in Hybrid and Battery Electric Vehicles (pdf; 1.02 MB)

345

Coal Technology  

Science Journals Connector (OSTI)

Several large demonstrations of FBC technology for electrical power generation have proven ... -MW(e) atmospheric pressure circulating fluidized-bed boiler at the Colorado–Ute Electric Association's...14 ...

2003-01-01T23:59:59.000Z

346

Bypass Flow Computations using a One-Twelfth Symmetric Sector For Normal Operation in a 350 MWth VHTR  

SciTech Connect (OSTI)

Significant uncertainty exists about the effects of bypass flow in a prismatic gas-cooled very high temperature reactor (VHTR). Bypass flow is the flow in the gaps between prismatic graphite blocks in the core. The gaps are present because of variations in their construction, imperfect installation and expansion and shrinkage from thermal heating and neutron fluence. Calculations are performed using computational fluid dynamics (CFD) for flow of the helium coolant in the gap and coolant channels along with conjugate heat generation and heat transfer in the fuel compacts and graphite. A commercial CFD code is used for all of the computations. A one-twelfth sector of a standard hexagonal block column is used for the CFD model because of its symmetry. Various scenarios are computed by varying the gap width from zero to 5 mm, varying the total heat generation rate to examine average and peak radial generation rates and variation of the graphite block geometry to account for the effects of shrinkage caused by irradiation. The calculations are for a 350 MWth prismatic reactor. It is shown that the effect of increasing gap width, while maintaining the same total mass flow rate, causes increased maximum fuel temperature while providing significant cooling to the near-gap region. The maximum outlet coolant temperature variation is increased by the presence of gap flow and also by an increase in total heat generation with a gap present. The effect of block shrinkage is actually to decrease maximum fuel temperature compared to a similar reference case.

Richard W. Johnson; Hiroyuki Sato

2012-10-01T23:59:59.000Z

347

Emergency sacrificial sealing method in filters, equipment, or systems  

DOE Patents [OSTI]

A system seals a filter or equipment component to a base and will continue to seal the filter or equipment component to the base in the event of hot air or fire. The system includes a first sealing material between the filter or equipment component and the base; and a second sealing material between the filter or equipment component and the base and proximate the first sealing material. The first sealing material and the second seal material are positioned relative to each other and relative to the filter or equipment component and the base to seal the filter or equipment component to the base and upon the event of fire the second sealing material will be activated and expand to continue to seal the filter or equipment component to the base in the event of hot air or fire.

Brown, Erik P

2014-09-30T23:59:59.000Z

348

NETL: Control Technology: Advanced Hybrid Particulate Collector  

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

Advanced Hybrid Particulate Collector Advanced Hybrid Particulate Collector Under DOE-NETL sponsorship, the University of North Dakota, Energy and Environmental Research Center (UND-EERC) has developed a new concept in particulate control, called an advanced hybrid particulate collector (AHPC). In addition to DOE and the EERC, the project team includes W.L. Gore & Associates, Inc., Allied Environmental Technologies, Inc., and the Otter Tail Power Company. The AHPC utilizes both electrostatic collection and filtration in a unique geometric configuration that achieves ultrahigh particle collection with much less collection area than conventional particulate control devices. The primary technologies for state-of-the-art particulate control are fabric filters (baghouses) and electrostatic precipitators (ESPs). A major limitation of ESPs is that the fractional penetration of 0.1- to 1.0-µm particles is typically at least an order of magnitude greater than for 10-µm particles, so a situation exists where the particles that are of greatest health concern are collected with the lowest efficiency. Fabric filters are currently considered to be the best available control technology for fine particles, but emissions are dependent on ash properties and typically increase if the air-to-cloth (A/C) ratio is increased. In addition, many fabrics cannot withstand the rigors of high-SO2 flue gases, which are typical for bituminous fuels. Fabric filters may also have problems with bag cleanability and high pressure drop, which has resulted in conservatively designed, large, costly baghouses.

349

2011 NNSS Review of DAF-JCO Inoperable HEPA Filtered Vent. System  

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

NNSS-2011-07-08 NNSS-2011-07-08 Site: Nevada National Security Site Subject: Office of Enforcement and Oversight's Office of Safety and Emergency Management Evaluations Activity Report for the Review of DAF-JCO-11-01 for Inoperable HEPA-Filtered Ventilation System Dates of Activity : 06/06/2011 - 07/08/2011 Report Preparer: William Macon Activity Description/Purpose: As an operational awareness activity, the Office of Health, Safety and Security (HSS) site lead reviewed a recent Justification for Continued Operations (JCO) for the Inoperable High Efficiency Particulate Air (HEPA)-Filtered Ventilation System at the Device Assembly Facility (DAF) at the Nevada National Security Site (NNSS). DAF- JCO-11-01, Revision 2, was prepared by the contractor, National Security Technologies, LLC (NSTec), on May

350

MODELING POWDERED SORBENT INJECTION IN COMBINATION WITHE FABRIC FILTER FOR THE CONTROL OF MERCURY EMISSIONS  

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

POWDERED SORBENT INJECTION IN POWDERED SORBENT INJECTION IN COMBINATION WITH FABRIC FILTER FOR THE CONTROL OF MERCURY EMISSIONS Joseph R. V. Flora Department of Civil and Environmental Engineering University of South Carolina, Columbia, SC 29208 Richard A. Hargis, William J. O'Dowd, Henry W. Pennline National Energy Technology Laboratory, U.S. Department of Energy P.O. Box, 10940, Pittsburgh, PA 15236 Radisav D. Vidic * Department of Civil and Environmental Engineering University of Pittsburgh, Pittsburgh, PA 15261 ABSTRACT A two-stage mathematical model for mercury removal using powdered activated carbon injection upstream of a baghouse filter was developed, with the first stage accounting for removal in the ductwork and the second stage accounting for additional removal due to the

351

Assessing environmental risk of the retired filter bed area, Battelle West Jefferson  

SciTech Connect (OSTI)

Initial investigations conducted by the U.S. Department of Energy, Chicago Operations Office, and by Argonne National Laboratory used seismic refraction profiling, electrical resistivity depth sounding, conductivity profiling, magnetic gradiometry, and ground-penetrating radar to study environmental geophysics in the area of the Battelle West Jefferson site`s radiologically contaminated retired filter beds. The investigators used a combination of nonintrusive technologies and innovative drilling techniques to assess environmental risk at the filter beds and to improve understanding of the geology of the Big Darby Creek floodplain. The geophysical investigation, which showed that the preferred groundwater pathway is associated with a laterally extensive deposit of silty sand to sand that is less than 12 ft deep in the floodplain area, also guided the location of cone penetrometer test sites and piezometer installation. Cone penetrometer testing was useful for comparing continuous logging data with surface geophysical data in establishing correlations among unconsolidated materials.

Miller, S.F.; Thompson, M.D.; Glennon, M.A. [and others

1997-04-01T23:59:59.000Z

352

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program  

E-Print Network [OSTI]

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program publication is funded by the Division to them in California. TECHNOLOGY TRANSFER PROGRAM MAY 2011, VOL. 3, NO. 1 California's Transition

California at Berkeley, University of

353

Durability of Diesel Engine Particulate Filters  

Broader source: Energy.gov [DOE]

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

354

Durability of Diesel Engine Particulate Filters  

Broader source: Energy.gov [DOE]

2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C.

355

Electrically-Assisted Diesel Particulate Filter Regeneration  

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

partner for this project, has developed a DPF technology that utilizes electrical power to heat the DPF for regeneration, thereby greatly reducing the "fuel penalty". D P F...

356

Fail save shut off valve for filtering systems employing candle filters  

DOE Patents [OSTI]

The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.

VanOsdol, John (Fairmont, WV)

2006-01-03T23:59:59.000Z

357

Fail Save Shut Off Valve for Filtering Systems Employing Candle Filters  

DOE Patents [OSTI]

The invention relates to an apparatus that acts as a fail save shut off valve. More specifically, the invention relates to a fail save shut off valve that allows fluid flow during normal operational conditions, but prevents the flow of fluids in the event of system failure upstream that causes over-pressurization. The present invention is particularly well suited for use in conjunction with hot gas filtering systems, which utilize ceramic candle filters. Used in such a hot gas system the present invention stops the flow of hot gas and prevents any particulate laden gas from entering the clean side of the system.

VanOsdol, John

2006-01-03T23:59:59.000Z

358

Qualifications of Candle Filters for Combined Cycle Combustion Applications  

SciTech Connect (OSTI)

The direct firing of coal produces particulate matter that has to be removed for environmental and process reasons. In order to increase the current advanced coal combustion processes, under the U.S. Department of Energy's auspices, Siemens Westinghouse Power Corporation (SWPC) has developed ceramic candle filters that can operate at high temperatures. The Coal Research Center of Southern Illinois University (SIUC), in collaboration with SWPC, developed a program for long-term filter testing at the SIUC Steam Plant followed by experiments using a single-filter reactor unit. The objectives of this program funded by the U.S. Department of Energy were to identify and demonstrate the stability of porous candle filter elements for use in high temperature atmospheric fluidized-bed combustion (AFBC) process applications. These verifications were accomplished through extended time slipstream testing of a candle filter array under AFBC conditions using SIUC's existing AFBC boiler. Temperature, mass flow rate, and differential pressure across the filter array were monitored for a duration of 45 days. After test exposure at SIUC, the filter elements were characterized using Scanning Electron Microscopy and BET surface area analyses. In addition, a single-filter reactor was built and utilized to study long term filter operation, the permeability exhibited by a filter element before and after the slipstream test, and the thermal shock resilience of a used filter by observing differential pressure changes upon rapid heating and cooling of the filter. The data acquired during the slipstream test and the post-test evaluations demonstrated the suitability of filter elements in advanced power generation applications.

Tomasz Wiltowski

2008-08-31T23:59:59.000Z

359

Technology Transfer  

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

Energy Efficiency & Renewable and Energy - Commercialization Energy Efficiency & Renewable and Energy - Commercialization Deployment SBIR/STTR - Small Business Innovation Research and Small Business Technology Transfer USEFUL LINKS Contract Opportunities: FBO.gov FedConnect.net Grant Opportunities DOE Organization Chart Association of University Technology Managers (AUTM) Federal Laboratory Consortium (FLC) Feedback Contact us about Tech Transfer: Mary.McManmon@science.doe.gov Mary McManmon, 202-586-3509 link to Adobe PDF Reader link to Adobe Flash player Licensing Guide and Sample License The Technology Transfer Working Group (TTWG), made up of representatives from each DOE Laboratory and Facility, recently created a Licensing Guide and Sample License [762-KB PDF]. The Guide will serve to provide a general understanding of typical contract terms and provisions to help reduce both

360

Technology Application Centers: Facilitating Technology Transfer  

E-Print Network [OSTI]

transfer plus technology application. A&C Enercom has learned from experience that technology deployment will not occur unless utilities achieve both technology transfer (e.g, the dissemination of information) and technology application (e.g., the direct...

Kuhel, G. J.

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Manufacturing technology  

SciTech Connect (OSTI)

The specific goals of the Manufacturing Technology thrust area are to develop an understanding of fundamental fabrication processes, to construct general purpose process models that will have wide applicability, to document our findings and models in journals, to transfer technology to LLNL programs, industry, and colleagues, and to develop continuing relationships with industrial and academic communities to advance our collective understanding of fabrication processes. Advances in four projects are described here, namely Design of a Precision Saw for Manufacturing, Deposition of Boron Nitride Films via PVD, Manufacturing and Coating by Kinetic Energy Metallization, and Magnet Design and Application.

Blaedel, K.L.

1997-02-01T23:59:59.000Z

362

Dynamic data filtering system and method  

DOE Patents [OSTI]

A computer-implemented dynamic data filtering system and method for selectively choosing operating data of a monitored asset that modifies or expands a learned scope of an empirical model of normal operation of the monitored asset while simultaneously rejecting operating data of the monitored asset that is indicative of excessive degradation or impending failure of the monitored asset, and utilizing the selectively chosen data for adaptively recalibrating the empirical model to more accurately monitor asset aging changes or operating condition changes of the monitored asset.

Bickford, Randall L; Palnitkar, Rahul M

2014-04-29T23:59:59.000Z

363

FEMP/NTDP Technology Focus New Technology  

E-Print Network [OSTI]

FEMP/NTDP Technology Focus New Technology Demonstration Program Technology Focus FEMPFederal Energy Management Program Trends in Energy Management Technology: BCS Integration Technologies ­ Open Communications into a complete EMCIS. The first article [1] covered enabling technologies for emerging energy management systems

364

Filter system cost comparison for IGCC and PFBC power systems  

SciTech Connect (OSTI)

A cost comparison was conducted between the filter systems for two advanced coal-based power plants. The results from this study are presented. The filter system is based on a Westinghouse advanced particulate filter concept, which is designed to operate with ceramic candle filters. The Foster Wheeler second-generation 453 MWe (net) pressurized fluidized-bed combustor (PFBC) and the KRW 458 MWe (net) integrated gasification combined cycle (IGCC) power plants are used for the comparison. The comparison presents the general differences of the two power plants and the process-related filtration conditions for PFBC and IGCC systems. The results present the conceptual designs for the PFBC and IGCC filter systems as well as a cost summary comparison. The cost summary comparison includes the total plant cost, the fixed operating and maintenance cost, the variable operating and maintenance cost, and the effect on the cost of electricity (COE) for the two filter systems.

Dennis, R.A.; McDaniel, H.M.; Buchanan, T. [and others

1995-12-01T23:59:59.000Z

365

Optical ranked-order filtering using threshold decomposition  

DOE Patents [OSTI]

A hybrid optical/electronic system performs median filtering and related ranked-order operations using threshold decomposition to encode the image. Threshold decomposition transforms the nonlinear neighborhood ranking operation into a linear space-invariant filtering step followed by a point-to-point threshold comparison step. Spatial multiplexing allows parallel processing of all the threshold components as well as recombination by a second linear, space-invariant filtering step. An incoherent optical correlation system performs the linear filtering, using a magneto-optic spatial light modulator as the input device and a computer-generated hologram in the filter plane. Thresholding is done electronically. By adjusting the value of the threshold, the same architecture is used to perform median, minimum, and maximum filtering of images. A totally optical system is also disclosed. 3 figs.

Allebach, J.P.; Ochoa, E.; Sweeney, D.W.

1987-10-09T23:59:59.000Z

366

Optical ranked-order filtering using threshold decomposition  

DOE Patents [OSTI]

A hybrid optical/electronic system performs median filtering and related ranked-order operations using threshold decomposition to encode the image. Threshold decomposition transforms the nonlinear neighborhood ranking operation into a linear space-invariant filtering step followed by a point-to-point threshold comparison step. Spatial multiplexing allows parallel processing of all the threshold components as well as recombination by a second linear, space-invariant filtering step. An incoherent optical correlation system performs the linear filtering, using a magneto-optic spatial light modulator as the input device and a computer-generated hologram in the filter plane. Thresholding is done electronically. By adjusting the value of the threshold, the same architecture is used to perform median, minimum, and maximum filtering of images. A totally optical system is also disclosed.

Allebach, Jan P. (West Lafayette, IN); Ochoa, Ellen (Pleasanton, CA); Sweeney, Donald W. (Alamo, CA)

1990-01-01T23:59:59.000Z

367

(Environmental technology)  

SciTech Connect (OSTI)

The traveler participated in a conference on environmental technology in Paris, sponsored by the US Embassy-Paris, US Environmental Protection Agency (EPA), the French Environmental Ministry, and others. The traveler sat on a panel for environmental aspects of energy technology and made a presentation on the potential contributions of Oak Ridge National Laboratory (ORNL) to a planned French-American Environmental Technologies Institute in Chattanooga, Tennessee, and Evry, France. This institute would provide opportunities for international cooperation on environmental issues and technology transfer related to environmental protection, monitoring, and restoration at US Department of Energy (DOE) facilities. The traveler also attended the Fourth International Conference on Environmental Contamination in Barcelona. Conference topics included environmental chemistry, land disposal of wastes, treatment of toxic wastes, micropollutants, trace organics, artificial radionuclides in the environment, and the use biomonitoring and biosystems for environmental assessment. The traveler presented a paper on The Fate of Radionuclides in Sewage Sludge Applied to Land.'' Those findings corresponded well with results from studies addressing the fate of fallout radionuclides from the Chernobyl nuclear accident. There was an exchange of new information on a number of topics of interest to DOE waste management and environmental restoration needs.

Boston, H.L.

1990-10-12T23:59:59.000Z

368

COMMERCIALIZING TECHNOLOGIES &  

E-Print Network [OSTI]

measurement." Dan Gillings President Applied Technology Associates NMSBA reduced my manufacturing costs by 20 a patent for a revolutionary new, even more shock absorbent mouthguard they will manufacture from material including a new additive. 2 Animated Talking Toys Heilbron Associates had acquired rights to a fiber optic

369

Vacuum Technology  

SciTech Connect (OSTI)

The environmental condition called vacuum is created any time the pressure of a gas is reduced compared to atmospheric pressure. On earth we typically create a vacuum by connecting a pump capable of moving gas to a relatively leak free vessel. Through operation of the gas pump the number of gas molecules per unit volume is decreased within the vessel. As soon as one creates a vacuum natural forces (in this case entropy) work to restore equilibrium pressure; the practical effect of this is that gas molecules attempt to enter the evacuated space by any means possible. It is useful to think of vacuum in terms of a gas at a pressure below atmospheric pressure. In even the best vacuum vessels ever created there are approximately 3,500,000 molecules of gas per cubic meter of volume remaining inside the vessel. The lowest pressure environment known is in interstellar space where there are approximately four molecules of gas per cubic meter. Researchers are currently developing vacuum technology components (pumps, gauges, valves, etc.) using micro electro mechanical systems (MEMS) technology. Miniature vacuum components and systems will open the possibility for significant savings in energy cost and will open the doors to advances in electronics, manufacturing and semiconductor fabrication. In conclusion, an understanding of the basic principles of vacuum technology as presented in this summary is essential for the successful execution of all projects that involve vacuum technology. Using the principles described above, a practitioner of vacuum technology can design a vacuum system that will achieve the project requirements.

Biltoft, P J

2004-10-15T23:59:59.000Z

370

De-dusting Filter Bags Reduce Indian Petcoke Mill Emissions  

Science Journals Connector (OSTI)

BWF Envirotec has installed more than 400 filter bags in a pulse jet clean filter system at an Indian industrial mill producing petroleum coke, a fuel commonly used in rotary kilns for cement production. The pulse jet filter separates the fine grain ‘petcoke’ product from the exhaust gases escaping out of the mill. The installation by the German-based company has reduced the mill’s measured emissions over the last nine months to under 10 mg/Nm3.

2003-01-01T23:59:59.000Z

371

Method of recovering hazardous waste from phenolic resin filters  

DOE Patents [OSTI]

The invention is a process for the recovery of hazardous wastes such as heavy metals and radioactive elements from phenolic resin filter by a circulating a solution of 8 to 16 molar nitric acid at a temperature of 110 to 190 degrees F. through the filter. The hot solution dissolves the filter material and releases the hazardous material so that it can be recovered or treated for long term storage in an environmentally safe manner.

Meikrantz, David H. (Idaho Falls, ID); Bourne, Gary L. (Idaho Falls, ID); McFee, John N. (Albuquerque, NM); Burdge, Bradley G. (Idaho Falls, ID); McConnell, Jr., John W. (Idaho Falls, ID)

1991-01-01T23:59:59.000Z

372

Building America Top Innovations Hall of Fame Profile Â… Thermal Bypass Air Barriers in the 2009 International Energy Conservation Code  

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

Imagine Homes of San Antonio, Texas, worked Imagine Homes of San Antonio, Texas, worked with Building America team partner IBACOS to improve the continuity of the air barrier along the thermal enclosure by using spray foam insulation in the walls and attic. Building America research teams effectively demonstrated the importance of thermal bypass air barriers, which led to their inclusion in ENERGY STAR for Homes Version 3 specifications in 2006 and then to inclusion in the 2009 IECC. This is a great example of effective research driving a complete market transformation process for a critical high-performance home innovation. Air sealing of the home's thermal enclosure has been required by the energy code for many years. However, in years past, the provisions were somewhat vague and only required that critical areas of potential air leakage (e.g., joints,

373

Scheduling and allocation algorithm for an elliptic filter  

E-Print Network [OSTI]

A new evolutionary algorithm for scheduling and allocation algorithm is developed for an elliptic filter. The elliptic filter is scheduled and allocated in the proposed work which is then compared with the different scheduling algorithms like As Soon As Possible algorithm, As Late As Possible algorithm, Mobility Based Shift algorithm, FDLS, FDS and MOGS. In this paper execution time and resource utilization is calculated using different scheduling algorithm for an Elliptic Filter and reported that proposed Scheduling and Allocation increases the speed of operation by reducing the control step. The proposed work to analyse the magnitude, phase and noise responses for different scheduling algorithm in an elliptic filter.

Marikkannan, Sangeetha

2012-01-01T23:59:59.000Z

374

Synthesis of all-pass filters by codirectional grating couplers  

Science Journals Connector (OSTI)

It is well known that soliton shapes result from reflectionless potentials. We propose a new technique for the synthesis of all-pass codirectional filter gratings that yields...

Peral, E; Capmany, J; Marti, J

1997-01-01T23:59:59.000Z

375

Compact cyclone filter train for radiological and hazardous environments  

DOE Patents [OSTI]

A compact cyclone filter train for the removal of hazardous and radiologi particles from a gaseous fluid medium which permits a small cyclone separator to be used in a very small space envelope due to the arrangement of the filter housing adjacent to the separator with the cyclone separator and the filters mounted on a plate. The entire unit will have a hoist connection at the center of gravity so that the entire unit including the separator, the filters, and the base can be lifted and repositioned as desired.

Bench, Thomas R. (Pittsburgh, PA)

1998-01-01T23:59:59.000Z

376

Optimal Filters for High-Speed Compressive Detection in ...  

E-Print Network [OSTI]

Feb 28, 2013 ... In this paper, we focus on the selection of optimal filters and measurement times to ... nonlinear optics–based chemical and materials analysis.

2013-02-14T23:59:59.000Z

377

MobiCleanTM Soot Filter for Diesel Locomotiive Applications  

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

is trapped on the surface of a catalyzed, high temperature, wall flow, porous Silicon Carbide filter. Silicon Carbide provides superior thermal durability over metal fiber and...

378

A Standard Soot Generator for Diesel Particulate Filter Testing  

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

CAMBUSTION A Standard Soot Generator for Diesel Particulate Filter Testing Poster - P10 Diesel Engine Emission Reduction Conference 2007 Chris Nickolaus ...

379

Engine Tests of an Active PM Filter Regeneration System | Department...  

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

System 2005 Diesel Engine Emissions Reduction (DEER) Conference Presentations and Posters 2005deernickolas.pdf More Documents & Publications Diesel Particulate Filter: A...

380

Modulated power filter compensator for a small renewable wind energy.  

E-Print Network [OSTI]

??This paper has three sections, the first one is related to wind energy, the second is related to power filters used to mitigate the harmonics,… (more)

Almadhi, Bassil

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Implementation and application of NDE on ceramic candle filters.  

E-Print Network [OSTI]

??A nondestructive evaluation (NDE) technique has been developed to determine the deterioration and remaining life of full-size ceramic candle filters used at the Power System… (more)

Kiriakidis, Alejandro C., 1971-

2003-01-01T23:59:59.000Z

382

Future Trends for DPF?SCR On-Filter (SCRF)  

Broader source: Energy.gov [DOE]

Fundamental and application-relevant test data gathered on SCRF filters , along with coating distribution, NOx conversion, pressure drop data, and engine tests, will be discussed.

383

High-frequency filtered images of an optically thick edge  

Science Journals Connector (OSTI)

Peculiarities of high-frequency filtering (contouring) of images of symmetric thick (extended along the optical axis) edge are investigated in analytical form by the Kirchhoff–Fresnel...

Chugui, Yu V; Sokolov, V A

1998-01-01T23:59:59.000Z

384

Non-Destructive Neutron Imaging to Analyze Particulate Filters  

Broader source: Energy.gov [DOE]

Non-destructive, non-invasive imaging is being employed in the laboratory to understand how soot, ash, and catalytic washcoat are deposited within a diesel particulate filter.

385

Improvement and Simplification of Diesel Particulate Filter System...  

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

FBC Improve the ash management (filter) Simplify the onboard dosing system and decrease cost and Chemist Ceramist Fuel system specialist Improve the vehicle integration for a Fit...

386

Sparsity Optimization in Design of Multidimensional Filter Networks  

E-Print Network [OSTI]

A FIR filter is represented in the spatial domain by a limited-size kernel defined by a ...... Muthukrishnan S (2005) Data streams: algorithms and applications.

2014-11-22T23:59:59.000Z

387

Diesel Soot Filter Characterization and Modeling for Advanced...  

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

Reactor regeneration of soot loaded catalyzed SCF * Micro-model of soot oxidation versus spatial catalyst loading. 7 2008 DOE OVT Merit Review Diesel Soot Filter Characterization...

388

Biodiesel Effects on Diesel Particle Filter Performance: Milestone Report  

SciTech Connect (OSTI)

Research results on the performance of biodiesel and biodiesel blends with ultra-low sulfur diesel (ULSD) and a diesel particle filter (DPF).

Williams, A.; McCormick, R. L.; Hayes, R.; Ireland, J.

2006-03-01T23:59:59.000Z

389

Optofluidic-Tunable Color Filters And Spectroscopy Based On Liquid...  

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

Based On Liquid-Crystal Microflows. Abstract: The integration of color filters with microfluidics has attracted substantial attention in recent years, for on-chip absorption,...

390

Performance of standard rate trickling filters at various depths  

E-Print Network [OSTI]

of '. he filter media+ The relathnship between removals snd applied loads for each of the units is Unearth they are represented in figso 8 to 15? The action inside each filter is somewhat s axzey The zeduction of suspended solids was satisfaoto... triokling filters . at ths Sewage Treat3sent Plant of' k and 5 College of Tax@st The criteria used for detsrsLining filter performance were reseval of' applied S, O. D?, renoval of suspended, solids, and rsaoval of volatile natter+ Ts; ts wsrs na;. 's...

Peralta-Rojas, Andres

1955-01-01T23:59:59.000Z

391

Optimal design of AC filter circuits in HVDC converter stations  

SciTech Connect (OSTI)

This paper investigates the reactive power as well as the harmonic conditions on both the valve and the AC-network sides of a HVDC converter station. The effect of the AC filter circuits is accurately modeled. The program is then augmented by adding an optimization routine. It can identify the optimal filter configuration, yielding the minimum current distortion factor at the AC network terminals for a prespecified fundamental reactive power to be provided by the filter. Several parameter studies were also conducted to illustrate the effect of accidental or intentional deletion of one of the filter branches.

Saied, M.M.; Khader, S.A. [Kuwait Univ. (Kuwait). Electrical and Computer Engineering Dept.

1995-12-31T23:59:59.000Z

392

Aluminum filtering preheater test results. Topical report, January-September 1994  

SciTech Connect (OSTI)

A prototype hood for preheating filters and refractory bowls used in the filtration of primary molten aluminum was tested under laboratory and plant conditions. The hood utilized gas fired, reticulated ceramic infrared burners as the heat source. The testing showed improved temperature uniformity and priming rates over conventional technology. A field test unit was designed and fabricated based on the prototype results. The unit was tested at the Alcoa Lafayette Plant in Lafayette, Indiana for a two month period. The unit performed reliably and improved preheating conditions were achieved. However, the lack of portability of the unit proved to be a problem for the operators.

Sweeting, T.B.; Gillish, K.

1995-04-01T23:59:59.000Z

393

TECHNOLOGY TRANSFER  

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

404-NOV. 1, 2000 404-NOV. 1, 2000 TECHNOLOGY TRANSFER COMMERCIALIZATION ACT OF 2000 VerDate 11-MAY-2000 04:52 Nov 16, 2000 Jkt 089139 PO 00000 Frm 00001 Fmt 6579 Sfmt 6579 E:\PUBLAW\PUBL404.106 APPS27 PsN: PUBL404 114 STAT. 1742 PUBLIC LAW 106-404-NOV. 1, 2000 Public Law 106-404 106th Congress An Act To improve the ability of Federal agencies to license federally owned inventions. Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled, SECTION 1. SHORT TITLE. This Act may be cited as the ''Technology Transfer Commer- cialization Act of 2000''. SEC. 2. FINDINGS. The Congress finds that- (1) the importance of linking our unparalleled network of over 700 Federal laboratories and our Nation's universities with United States industry continues to hold great promise

394

Emerging technologies  

SciTech Connect (OSTI)

The mission of the Emerging Technologies thrust area at Lawrence Livermore National Laboratory is to help individuals establish technology areas that have national and commercial impact, and are outside the scope of the existing thrust areas. We continue to encourage innovative ideas that bring quality results to existing programs. We also take as our mission the encouragement of investment in new technology areas that are important to the economic competitiveness of this nation. In fiscal year 1992, we have focused on nine projects, summarized in this report: (1) Tire, Accident, Handling, and Roadway Safety; (2) EXTRANSYT: An Expert System for Advanced Traffic Management; (3) Odin: A High-Power, Underwater, Acoustic Transmitter for Surveillance Applications; (4) Passive Seismic Reservoir Monitoring: Signal Processing Innovations; (5) Paste Extrudable Explosive Aft Charge for Multi-Stage Munitions; (6) A Continuum Model for Reinforced Concrete at High Pressures and Strain Rates: Interim Report; (7) Benchmarking of the Criticality Evaluation Code COG; (8) Fast Algorithm for Large-Scale Consensus DNA Sequence Assembly; and (9) Using Electrical Heating to Enhance the Extraction of Volatile Organic Compounds from Soil.

Lu, Shin-yee

1993-03-01T23:59:59.000Z

395

System Effects of High Efficiency Filters in Homes  

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

System Effects of High Efficiency Filters in Homes System Effects of High Efficiency Filters in Homes Title System Effects of High Efficiency Filters in Homes Publication Type Conference Paper LBNL Report Number LBNL-6144E Year of Publication 2013 Authors Walker, Iain S., Darryl J. Dickerhoff, David Faulkner, and William J. N. Turner Conference Name ASHRAE Annual Conference Date Published 03/2013 Abstract Occupant concern about indoor air quality (IAQ) issues has led to the increased use of more effective air filters in residential heating and cooling systems. A drawback of improved filtration is that better filters tend to have more flow resistance. This can lead to lower system airflows that reduce heat exchanger efficiency, increase duct pressure that leads to increased air leakage for ducts and, in some case s, increased blower power consumption. There is currently little knowledge on the magnitude of these effects. In this study, the performance of ten central forced air systems was monitored for a year. The systems used either a Permanent Split Capacitor (PSC) or a Brushless Permanent Magnet (BPM) blower. Each system was operated with a range of filter efficiencies ranging from MERV 6 (the lowest currently permitted in ASHRAE Standard 62.2) up to MERV 16. Measurements were recorded every ten seconds for blower power, filter pressure drop, supply and return plenum pressures together with plenum and indoor temperatures. These detailed continuous measurements allowed observation of filter loading effects as well as the initial change in system performance when filters were swapped. The results of the field measurements were used in simulations to examine more general system performance effects for a wider range of climates. The field tests showed that system static pressures were highly influenced by filter selection, filter loading rates varied more from house to house than by MERV rating and overall were quite low in many of the homes. PSC motors showed reduced power and airflow as the filters loaded, but BPM motors attempted to maintain a constant airflow and increased their power to do so. The combined field test and simulation results from this study indicate that for MERV 10-13 filters the effects on energy use are small (5%) and usability. In systems using low MERV filters that are already close to blower performance limits the addition of a MERV 16 filter pushed the blowers to their performance limits.

396

Argonne National Laboratory - West's approach to filter characterization.  

SciTech Connect (OSTI)

Like other DOE facilities, ANL-W uses a variety of nuclear grade, industrial grade, or furnace-type particulate filters to control airborne radioactivity and hazardous contaminants in radiological containment structures or processes. As designed, these filters entrain and ultimately concentrate contaminants in the media. Toxic metal contaminants include cadmium, chromium, lead; and mercury present in sufficient concentrations to exhibit the hazardous waste characteristic of toxicity as defined in 40 CFR 261.24. Radionuclide contaminants deposited in the media may at times accumulate in sufficient quantity to classify the filter as transuranic or remote-handled waste. Upon their removal from the ventilation system, these particulate filters become wastes, which must be characterized to determine their hazardous and radioactive classifications. A well defined filter characterization process is essential for the proper/consistent waste characterization and minimization and for maintaining personnel radiological exposures as-low-as-reasonably-achievable (ALARA) (1,2). ANL-W has developed an approach to filter sampling and characterization to meet these needs. The ANL-W filter sampling and characterization process is designed to ensure representative sampling and/or process knowledge is utilized in characterizing the filters. The data obtained through sampling and/or process knowledge is used to show compliance with the Resource Conservation and Recovery Act (3) and Treatment/Storage/Disposal Facility Waste Acceptance Criteria. The ANL-W filter characterization involves the collection of process information, filter handling and sampling, sample analysis, data management filter characterization, and waste handling. Each element of the process is streamlined to ensure proper characterization while minimizing radiological exposure to maintenance workers, samplers, laboratory personnel, and waste handlers.

Miller, T. A.

1999-02-10T23:59:59.000Z

397

Building Technologies Office: About Emerging Technologies  

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

Emerging Technologies Emerging Technologies The Emerging Technologies team funds the research and development of cost-effective, energy-efficient building technologies within five years of commercialization. Learn more about the: Key Technologies Benefits Results Key Technologies Specific technologies pursued within the Emerging Technologies team include: Lighting: advanced solid-state lighting systems, including core technology research and development, manufacturing R&D, and market development Heating, ventilation, and air conditioning (HVAC): heat pumps, heat exchangers, and working fluids Building Envelope: highly insulating and dynamic windows, cool roofs, building thermal insulation, façades, daylighting, and fenestration Water Heating: heat pump water heaters and solar water heaters

398

Electromagnetic interference filter for automotive electrical systems  

DOE Patents [OSTI]

A filter for an automotive electrical system includes a substrate having first and second conductive members. First and second input terminals are mounted to the substrate. The first input terminal is electrically connected to the first conductive member, and the second input terminal is electrically connected to the second conductive member. A plurality of capacitors are mounted to the substrate. Each of the capacitors is electrically connected to at least one of the first and second conductive members. First and second power connectors are mounted to the substrate. The first power connector is electrically connected to the first conductive member, and the second power connector is electrically connected to the second conductive member. A common mode choke is coupled to the substrate and arranged such that the common mode choke extends around at least a portion of the substrate and the first and second conductive members.

Herron, Nicholas Hayden; Carlson, Douglas S; Tang, David; Korich, Mark D

2013-07-02T23:59:59.000Z

399

Demonstration of Advanced Filtration Technologies: Developing Energy-rebate  

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

Demonstration of Advanced Filtration Technologies: Developing Energy-rebate Demonstration of Advanced Filtration Technologies: Developing Energy-rebate Criteria through Performing Standard Laboratory Tests and Statistical Analyses Title Demonstration of Advanced Filtration Technologies: Developing Energy-rebate Criteria through Performing Standard Laboratory Tests and Statistical Analyses Publication Type Report LBNL Report Number LBNL-61684 Year of Publication 2007 Authors Xu, Tengfang T., and Duo Wang Call Number LBNL-61684 Abstract Fan-filter unit systems are used for re-circulating clean air in cleanrooms are gaining popularity in California as well as in the rest of the world. Under normal operation, fan-filter units require high power demand, typically ranging from 100 to 300 W per square meter of cleanroom floor area (or approximately 10-30 W/ft2). Operating 7 by 24, they normally consume significant electric energy, while providing required contamination control for cleanrooms in various industries. Previous studies focused on development of a standard test procedure for fan-filter units. This project is to improve the methods, and develop new information to demonstrate the methods can be used to assist the industries to apply more energy-efficient fan-filter units in cleanrooms.

400

Manufacturing Science and Technology: Technologies  

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

Meso-Machining Meso-Machining PDF format (182 kb) Sandia's Micro-Electro Discharge Machine (Micro-EDM) (above). On the upper right inset is the Micro-EDM electode in copper that was made with the LIGA (electroforming) process. On the lower right inset is a screen fabricated into .006 inch kovar sheet using the Micro-EDM electrode. The walls of the screen are .002 inch wide by .006 inch deep. Meso-machining technologies being developed at Sandia National Laboratories will help manufacturers improve a variety of production processes, tools, and components. Meso-machining will benefit the aerospace, automotive, biomedical, and defense industries by creating feature sizes from the 1 to 50 micron range. Sandia's Manufacturing Science and Technology Center is developing the

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Manufacturing Science and Technology: Technologies  

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

LTCC multi-chip module LTCC multi-chip module A high density LTCC multi-chip module Electronic Packaging PDF format (150 kb) The Electronic Packaging technologies in the Thin Film, Vacuum, & Packaging Department are a resource for all aspects of microelectronic packaging. From design and layout to fabrication of prototype samples, the staff offers partners the opportunity for concurrent engineering and development of a variety of electronic packaging concepts. This includes assistance in selecting the most appropriate technology for manufacturing, analysis of performance characteristics and development of new and unique processes. Capabilities: Network Fabrication Low Temperature Co-Fired Ceramic (LTCC) Thick Film Thin Film Packaging and Assembly Chip Level Packaging MEMs Packaging

402

Model-Based Commissioning for Filters in Room Air Conditioners  

E-Print Network [OSTI]

This paper proposes a model that can estimate filter resistance. Two sorts of value are used as inputs to estimate filter resistance. One is the power consumed by the fan in the indoor unit and the other is the thermal performance. For the room air...

Wang, F.; Yoshida, H.; Kitagawa, H.; Matsumoto, K.; Goto, K.

2004-01-01T23:59:59.000Z

403

Biomass Control in Waste Air Biotrickling Filters by Protozoan Predation  

E-Print Network [OSTI]

Biomass Control in Waste Air Biotrickling Filters by Protozoan Predation Huub H. J. Cox, Marc A as a means of biomass control. Wet biomass for- mation in 23.6-L reactors over a 77-day period was reduced in the biotrickling filter enriched with protozoa. The lower rate of biomass accumulation after the addi- tion

404

Tunable negative-tap photonic microwave filter based on a  

E-Print Network [OSTI]

Tunable negative-tap photonic microwave filter based on a cladding-mode coupler and an optically injected laser of large detuning Sze-Chun Chan,* Qing Liu, Zhu Wang, and Kin Seng Chiang Department: A tunable negative-tap photonic microwave filter using a cladding-mode coupler together with optical

Chan, Sze-Chun

405

Autopoiesis, the immune system, and adaptive information filtering  

Science Journals Connector (OSTI)

Adaptive information filtering is a challenging and fascinating problem. It requires the adaptation of a representation of a user's multiple interests to various changes in them. We tackle this dynamic problem with Nootropia, a model inspired by the ... Keywords: Adaptive information filtering, Autopoiesis, Immune-inspired

Nikolaos Nanas; Anne Roeck

2009-06-01T23:59:59.000Z

406

Compositional analysis of floating-point linear numerical filters  

E-Print Network [OSTI]

Compositional analysis of floating-point linear numerical filters David Monniaux CNRS / Laboratoire filters are used in a variety of applications (sound treatment, control/command, etc.), implemented experience with the Astr´ee static analyzer [3] is that precise analysis of the numerical behavior

Monniaux, David

407

Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor -Global  

E-Print Network [OSTI]

PENNSTATE Department of Mechanical Engineering Spring 2012 HVAC Filter Sensor - Global Overview The purpose of this project is to develop a heating, ventilation, and air conditioning (HVAC) monitoring a residential, forced flow, multi-zone HVAC filter needs to be replaced, and then alerts the users

Demirel, Melik C.

408

Free-standing inductive grid filter for infrared radiation rejection  

Science Journals Connector (OSTI)

We developed a fabrication method for free-standing metal structures with high aspect ratios to manufacture inductive grid filters for infrared rejection. Deep grooves in thermally evaporated SiO"2 layer, fabricated by electron beam lithography and etching, ... Keywords: Inductive grid filter, Infrared rejection, Metallic nanostructures

Konstantins Jefimovs; Janne Laukkanen; Tuomas Vallius; Tero Pilvi; Mikko Ritala; Tomi Meilahti; Matti Kaipiainen; Marcos Bavdaz; Markku Leskelä; Jari Turunen

2006-04-01T23:59:59.000Z

409

Optical design of electron microscope lenses and energy filters  

Science Journals Connector (OSTI)

......Two-stage elearon energy analyzer Czech Republic...Academic Press New York) piece for a transmission...Academic Press, New York). 47 Tang T T...T.!.!.2 : Energy-filtering Transmission...Proposal of a new energy filter for TEM......

K Tsuno

1999-01-01T23:59:59.000Z

410

3D Wavelet-Based Filter and Method  

DOE Patents [OSTI]

A 3D wavelet-based filter for visualizing and locating structural features of a user-specified linear size in 2D or 3D image data. The only input parameter is a characteristic linear size of the feature of interest, and the filter output contains only those regions that are correlated with the characteristic size, thus denoising the image.

Moss, William C. (San Mateo, CA); Haase, Sebastian (San Francisco, CA); Sedat, John W. (San Francisco, CA)

2008-08-12T23:59:59.000Z

411

Spreadsheet Filtering by FFT Gaussian-based Convolution  

E-Print Network [OSTI]

Filtering of digital signals is accomplished on an Excel spreadsheet using fast Fourier transform (FFT) convolution in which the kernel is either a Gaussian or a cosine modulated Gaussian. Pedagogical examples of low-pass and band-pass filtering are provided, and the practical value of the spreadsheet is illustrated with some cases involving an earthquake record generated by a folded pendulum seismometer.

Randall D. Peters

2004-06-18T23:59:59.000Z

412

Subwog 12-D tritium technology meeting  

SciTech Connect (OSTI)

The first Subwog 12-D Tritium Technology Meeting was held at the Westinghouse Savannah River Site during the week of May 21, 1990. Subwog 12-D was created as a subwog of JOWOG 12 to address the need to understand tritium applications throughout the entire weapons complex. This includes weapons related concerns, but is primarily intended to cover tritium production and handling, environmental, safety and health issues, compatibility with materials in general; and facility design, commissioning and decommissioning activities. Tritium technology issues discussed included the physical and chemical properties, kinetics, storage, reservoir loading techniques, isotope exchange, radiolysis/aging, process and handling technology, compatibility, purification and filtering, analysis, monitoring methods, function testing, packaging and shipping, environmental and operational safety, facility design and safety, glovebox atmosphere clean-up systems, glovebox/facility decommissioning, tritium production target materials, and tritium recovery. This document provides a collection of most of the unclassified extended abstracts and abstracts presented at Subwog 12-D.

Parker, M.J.; Addis, R.P.

1991-01-01T23:59:59.000Z

413

Subwog 12-D tritium technology meeting. Abstracts  

SciTech Connect (OSTI)

The first Subwog 12-D Tritium Technology Meeting was held at the Westinghouse Savannah River Site during the week of May 21, 1990. Subwog 12-D was created as a subwog of JOWOG 12 to address the need to understand tritium applications throughout the entire weapons complex. This includes weapons related concerns, but is primarily intended to cover tritium production and handling, environmental, safety and health issues, compatibility with materials in general; and facility design, commissioning and decommissioning activities. Tritium technology issues discussed included the physical and chemical properties, kinetics, storage, reservoir loading techniques, isotope exchange, radiolysis/aging, process and handling technology, compatibility, purification and filtering, analysis, monitoring methods, function testing, packaging and shipping, environmental and operational safety, facility design and safety, glovebox atmosphere clean-up systems, glovebox/facility decommissioning, tritium production target materials, and tritium recovery. This document provides a collection of most of the unclassified extended abstracts and abstracts presented at Subwog 12-D.

Parker, M.J.; Addis, R.P.

1991-12-31T23:59:59.000Z

414

Secondary pollutants from ozone reactions with ventilation filters and  

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

Secondary pollutants from ozone reactions with ventilation filters and Secondary pollutants from ozone reactions with ventilation filters and degradation of filter media additives Title Secondary pollutants from ozone reactions with ventilation filters and degradation of filter media additives Publication Type Journal Article Year of Publication 2011 Authors Destaillats, Hugo, Wenhao Chen, Michael G. Apte, Nuan Li, Michael Spears, Jérémie Almosni, Gregory Brunner, Jianshun(Jensen) Zhang, and William J. Fisk Journal Atmospheric Environment Volume 45 Start Page 3561 Issue 21 Pagination 3561-3568 Keywords commercial building ventilation & indoor environmental quality group, commercial building ventilation and indoor environmental quality group, energy analysis and environmental impacts department, indoor environment department, indoor environment group

415

Polarization-independent optical wavelength filter for channel dropping applications  

DOE Patents [OSTI]

The polarization dependence of optical wavelength filters is eliminated by using waveguide directional couplers. Material birefringence is used to compensate for the waveguide (electromagnetic) birefringence which is the original cause of the polarization dependence. Material birefringence is introduced in a controllable fashion by replacing bulk waveguide layers by finely layered composites, such as multiple quantum wells using III-V semiconductor materials. The filter has use in wavelength-division-multiplexed fiber optic communication systems. This filter has broad application for wavelength-tunable receivers in fiber optic communication links, which may be used for telecommunications, optical computer interconnect links, or fiber optic sensor systems. Since multiple-wavelength systems are increasingly being used for all of these applications, the filter is useable whenever a rapidly tunable, wavelength-filtering receiver is required.

Deri, Robert J. (Pleasanton, CA); Patterson, Frank (Livermore, CA)

1996-01-01T23:59:59.000Z

416

Use of adaptive matching filters to improve reservoir definition  

SciTech Connect (OSTI)

Improvements in seismic resolution through better seismic acquisition and processing coupled with geometric improvements provided by 3-D surveys should allow better depiction of reservoir settings. To more fully benefit from these data improvements, is is desirable to translate the seismic acoustic attributes into a form that has more lithologic meaning. Tuning and thin bed effects etc. are automatically taken into account, and the acoustic data rendered into rock terms by matched filtering. The advantage of the present method is that the matching filter is allowed to adapt over time, but only slowly. The result is adaptive filters that give better prediction of lithologic characteristics in areas adjacent to the control data. Slowly adaptive matching filters can provide better prediction of reservoir characteristics between control points (wells). Such techniques are particularly suitable in multiwell settings where it is possible to frequently calibrate the filters.

DuBose, J.B. Jr; Blackwelder, B.

1995-12-31T23:59:59.000Z

417

300 GPM Solids Removal System A True Replacement for Back Flushable Powdered Filter Systems - 13607  

SciTech Connect (OSTI)

The EnergySolutions Solids Removal System (SRS) utilizes stainless steel cross-flow ultra-filtration (XUF) technology which allows it to reliably remove suspended solids greater than one (1) micron from liquid radwaste streams. The SRS is designed as a pre-treatment step for solids separation prior to processing through other technologies such as Ion Exchange Resin (IER) and/or Reverse Osmosis (RO), etc. Utilizing this pre-treatment approach ensures successful production of reactor grade water while 1) decreasing the amount of radioactive water being discharged to the environment; and 2) decreasing the amount of radioactive waste that must ultimately be disposed of due to the elimination of spent powdered filter media. (authors)

Ping, Mark R.; Lewis, Mark [EnergySolutions, Suite 100, Center Point II, 100 Center Point Circle, Columbia, SC 29210 (United States)] [EnergySolutions, Suite 100, Center Point II, 100 Center Point Circle, Columbia, SC 29210 (United States)

2013-07-01T23:59:59.000Z

418

TECHNOLOGY LICENSE APPLICATION Office of Technology Transfer  

E-Print Network [OSTI]

Page 1 TECHNOLOGY LICENSE APPLICATION Office of Technology Transfer UT-Battelle, LLC (UT. One of the functions of UT-BATTELLE's Office of Technology Transfer is to negotiate license agreements

Pennycook, Steve

419

Hydrogen Technologies Group  

SciTech Connect (OSTI)

The Hydrogen Technologies Group at the National Renewable Energy Laboratory advances the Hydrogen Technologies and Systems Center's mission by researching a variety of hydrogen technologies.

Not Available

2008-03-01T23:59:59.000Z

420

Information Technology and Libraries  

E-Print Network [OSTI]

Sue Chesley Perry 196 INFORMATION TECHNOLOGY AND LIBRARIES |LITA - Library & Information Technology Association). ”Two of the 190 INFORMATION TECHNOLOGY AND LIBRARIES |

Hubble, Ann; Murphy, Deborah A.; Perry, Susan Chesley

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Technology Transfer: Success Stories: Licensed Technologies  

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

Licensed Technologies Licensed Technologies Here are some of our licensees and the technologies they are commercializing; see our Start-Up Company page for more of our technology licenses. Company (Licensee) Technology Life Technologies Corp. Cell lines for breast cancer research Bristol Myers Squibb; Novartis; Plexxikon Inc.; Wyeth Research; GlaxoSmithKline; Johnson & Johnson; Boehringer Ingelheim Pharmaceuticals, Inc.; Genzyme Software for automated macromolecular crystallography Shell International Exploration and Production; ConnocoPhillips Company; StatOil ASA; Schlumburger Technology Corportation; BHP Billiton Ltd.; Chevron Energy Technology Company; EniTecnologie S.p.A. Geo-Hydrophysical modeling software Microsoft Home Energy Saver software distribution Kalinex Colorimetric bioassay

422

Vehicle Technologies Office: 2008 Advanced Vehicle Technology...  

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

8 Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report Vehicle Technologies Office: 2008 Advanced...

423

Vehicle Technologies Office: 2009 Advanced Vehicle Technology...  

Office of Environmental Management (EM)

Vehicle Technologies Office: 2009 Advanced Vehicle Technology Analysis and Evaluation Activities and Heavy Vehicle Systems Optimization Program Annual Progress Report Vehicle...

424

Design and manufacture of a low-cost mechanism for compacting used oil filters  

E-Print Network [OSTI]

Used automotive oil filter disposal is a real and increasing problem in the United States. With over 450 million oil filters sold each year, and 80% of used filters thrown into landfills, this waste represents a significant ...

Kosoglow, Richard D

2008-01-01T23:59:59.000Z

425

New Techniques to Characterize and Remove Water-Based Drilling Fluids Filter Cake  

E-Print Network [OSTI]

Filter cake characterization is very important in drilling and completion operations. Heterogeneity of the filter cake plays a key role in the design of chemical treatments needed to remove the filter cake. The objectives of this study...

Elkatatny, Salaheldin Mahmoud

2013-03-29T23:59:59.000Z

426

Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.  

E-Print Network [OSTI]

Ozone Reaction with HVAC Filters Hugo Destaillats, WenhaoOzone Reaction with HVAC Filters Hugo Destaillats 1,3,* ,Ozone Reaction with HVAC Filters Hugo Destaillats 1,3,* ,

Destaillats, Hugo

2012-01-01T23:59:59.000Z

427

Energy Efficient Indoor VOC Air Cleaning with Activated Carbon Fiber (ACF) Filters  

E-Print Network [OSTI]

The existing particle filters in HVAC systems of buildingscandidates for use as VOC filters in HVAC systems. Recentcost of an ACF filter bed in an HVAC system is the energy

Sidheswaran, Meera

2012-01-01T23:59:59.000Z

428

Manufacturing Science and Technology: Technologies  

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

Thin Films Thin Films PDF format (189 kb) Multi Layer Thin Films Multi Layer Thin Films Planetary Sputtering SystemsPlanetary Sputtering Systems Planetary Sputtering Systems The Thin Film laboratory within Manufacturing Science & Technology provides a variety of vapor deposition processes and facilities for cooperative research and development. Available capabilities include electron beam evaporation, sputter deposition, reactive deposition processes, atomic layer deposition (ALD) and specialized techniques such as focused ion beam induced chemical vapor deposition. Equipment can be reconfigured for prototyping or it can be dedicated to long-term research, development and manufacturing. Most sputter and evaporative deposition systems are capable of depositing multiple materials.

429

Manufacturing Science and Technology: Technologies  

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

Molding, Thermoforming & Compounding Molding, Thermoforming & Compounding PDF format (89 kb) The Manufacturing Science & Technology Center helps customers choose the best materials and techniques for their product by providing a variety of conformal coatings, thermoforming, and compounding materials using established or custom designed processes. The department provides consulting services for injection molding and rubber compounding projects. Capabilities: Thermoforming: Processing thermoplastics such as polycarbonate, polymethyl methacrylate, polypropylene polystyrene, and ABS; producing holding trays, protective caps, and custom covers Injection Molding Consultation: Designing your part to be injection molded, helping you choose the best material for your application, and supporting your interface with injection molding companies

430

A Two-Stage Kalman Filter Approach for Robust and Real-Time Power System State Estimation  

SciTech Connect (OSTI)

As electricity demand continues to grow and renewable energy increases its penetration in the power grid, realtime state estimation becomes essential for system monitoring and control. Recent development in phasor technology makes it possible with high-speed time-synchronized data provided by Phasor Measurement Units (PMU). In this paper we present a two-stage Kalman filter approach to estimate the static state of voltage magnitudes and phase angles, as well as the dynamic state of generator rotor angles and speeds. Kalman filters achieve optimal performance only when the system noise characteristics have known statistical properties (zero-mean, Gaussian, and spectrally white). However in practice the process and measurement noise models are usually difficult to obtain. Thus we have developed the Adaptive Kalman Filter with Inflatable Noise Variances (AKF with InNoVa), an algorithm that can efficiently identify and reduce the impact of incorrect system modeling and/or erroneous measurements. In stage one, we estimate the static state from raw PMU measurements using the AKF with InNoVa; then in stage two, the estimated static state is fed into an extended Kalman filter to estimate the dynamic state. Simulations demonstrate its robustness to sudden changes of system dynamics and erroneous measurements.

Zhang, Jinghe; Welch, Greg; Bishop, Gary; Huang, Zhenyu

2014-04-01T23:59:59.000Z

431

Technology Name  

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

Development Development DE-EM0000598 D&D KM-IT For the deployment of Information Technology for D&D knowledge management Page 1 of 2 Florida International University Florida D&D Knowledge Management Information Tool Challenge Deactivation and decommissioning (D&D) work is a high priority across the DOE Complex. The D&D community associated with the various DOE sites has gained extensive knowledge and experience over the years. To prevent the D&D knowledge and expertise from being lost over time an approach is needed to capture and maintain this valuable information in a universally available and easily usable system. Technical Solution The D&D KM-IT serves as a centralized repository

432

CSIR TECHNOLOGY AWARDS -2013  

E-Print Network [OSTI]

CSIR TECHNOLOGY AWARDS - 2013 GUIDELINES & PROFORMAE FOR NOMINATIONS Planning and Performance 2013 #12;CSIR TECHNOLOGY AWARDS BRIEF DETAILS ,,CSIR Technology Awards were instituted in 1990 to encourage multi-disciplinary in- house team efforts and external interaction for technology development

Jayaram, Bhyravabotla

433

E-Print Network 3.0 - adaptive filtering techniques Sample Search...  

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

adaptive filtering techniques Page: << < 1 2 3 4 5 > >> 1 Applications of the Fourier Transform in Imaging Highpass and Lowpass Filters Summary: in the frequency domain. We present...

434

E-Print Network 3.0 - air filters Sample Search Results  

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

Summary: , water treatment equipment, elevators (electric and hydraulic), sewer lift pumps, filter servicing in air... lift pumps, filter servicing in air-handling units and...

435

High-frequency enhancement of magneto-optic data storage signals by optical and electronic filtering  

Science Journals Connector (OSTI)

We show that the system transfer function of magneto-optic data storage systems can be improved significantly by combination of optical filtering and electronic filtering. In our...

Walker, Edwin P; Milster, Tom D

1995-01-01T23:59:59.000Z

436

E-Print Network 3.0 - active filter utilizing Sample Search Results  

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

TRANSACTIONS ON POWER ELECTRONICS, VOL. 17, NO. 1, JANUARY 2002 A New Hybrid Active Power Filter (APF) Topology Summary: active power filter topology. The function of the IGBT...

437

Lab Visits on DOE Technology Roadmap and the Technology Advisory...  

Office of Environmental Management (EM)

DOE Technology Roadmap and the Technology Advisory Board OCIO Technology Summit: High Performance Computing Lab Visits on DOE Technology Roadmap and the Technology Advisory Board...

438

INL Technology Transfer  

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

Technology Transfer Through collaboration with industry partners, INL's Technology Deployment office makes available to American agencies and international organizations unique...

439

Energy Technology Solutions  

Broader source: Energy.gov [DOE]

Public-private partnerships transforming industry and list of commercialized technologies, knowledge-based results, and promising technologies

440

California Institute of Technology  

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

California Institute of Technology o Ivan Celanovic, Principal Research Scientist, Massachusetts Institute of Technology o Geoffrey Kinsey, Director, Photovoltaic...

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Technology Validation Fact Sheet  

Broader source: Energy.gov [DOE]

Fact sheet produced by the Fuel Cell Technologies Office describing hydrogen and fuel cell technology validation efforts.

442

Survival of bioaerosols in HVAC system photocatalytic filters  

Science Journals Connector (OSTI)

Abstract The survival of an experimental bioaerosol in photocatalytic and non-photocatalytic filters was investigated under UV-A or UV-C radiation exposure. To ensure the generation of reproducible bioaerosols in real operating conditions of Heating, Ventilation and Air Conditioning (HVAC) systems and their homogeneous coating on filters, a reactor with an optimal geometry was developed. The bacterial aerosol was generated from standardised bacterial suspensions and the Gram-negative bacterial model Escherichia coli was used as the experimental organism. The bioaerosol was characterised in terms of particle size distribution, reproducibility and stability over time. The coating of aerosolised cells on the filters was then studied. The total number of aerosolised E. coli cells was different from the amount of cultivable bacterial cells extracted from filters, probably resulting from the stress of the aerosolisation process. Damages to the outer membrane of E. coli cells were clearly observed through SEM and epifluorescent microscopy analysis. The influence of important physical parameters in the reactor-aerosolisation duration, frontal velocity and relative humidity- on the amount of aerosolised cells coated on filters were also investigated. Finally, the effects of UV-A or UV-C radiation were assessed on aerosolised microorganisms coated on HEPA photocatalytic filters and on photocatalytic or non-photocatalytic filters containing activated charcoal. The HEPA photocatalytic filters demonstrated a better disinfection efficiency with full damages of the aerosolised bacterial cells, probably resulting from an optimal contact between TiO2 coating and the microorganisms. In contrast, the use of filters with activated charcoal resulted in the apparition of an inactivation threshold that could be attributed to the penetration of aerosolised cells within the activated charcoal layer and the absence of contact with the photocatalyst. However, UV-C photocatalysis was able to inactivate faster and, at the same time, mineralise biological pollutants than UV-A.

S. Pigeot-Remy; J.C. Lazzaroni; F. Simonet; P. Petinga; C. Vallet; P. Petit; P.J. Vialle; C. Guillard

2014-01-01T23:59:59.000Z

443

Adjunctive Inferior Vena Cava Filter Placement for Acute Pulmonary Embolism  

SciTech Connect (OSTI)

Inferior vena cava (IVC) filters are sometimes placed as an adjunct to full anticoagulation in patients with significant pulmonary embolism (PE). We aimed to determine the prevalence of adjunctive IVC filter placement in individuals diagnosed with PE, as well as the effect of adjunctive filter placement on mortality in patients with right heart strain associated with PE. This was a retrospective study of patients with acute PE treated with full anticoagulation admitted to a single academic medical center. Information abstracted from patient charts included presence or absence of right heart strain and of deep-vein thrombosis, and whether or not an IVC filter was placed. The endpoint was in-hospital mortality. Over 2.75 years, we found that 248 patients were diagnosed with acute PE, with an in-hospital mortality rate of 4.4%. The prevalence of adjunctive IVC filter placement was 13.3% (33 of 248), and the prevalence of documented right heart strain was 27.0% (67 of 248). In-hospital mortality was 10.2% in the non-filter-treated group (5 of 49), whereas there were no deaths in the filter-treated group (0 of 18); however, the difference was not statistically significant (P = 0.37). Both the presence of deep-vein thrombosis and of right heart strain increased the likelihood that an adjunctive IVC filter was placed (P < 0.0001 and P < 0.001, respectively). At our institution, patients were treated with IVC filters in addition to anticoagulation in 13.3% of cases of acute PE. Prospective studies or large clinical registries should be conducted to clarify whether this practice improves outcomes.

Jha, V. M., E-mail: vjha@mfa.gwu.ed [George Washington University Medical Center, Division of Pulmonary and Critical Care Medicine, Department of Medicine (United States); Lee-Llacer, J. [George Washington University Medical Center, Department of Anesthesiology and Critical Care Medicine (United States); Williams, J.; Ubaissi, H.; Gutierrez, G. [George Washington University Medical Center, Division of Pulmonary and Critical Care Medicine, Department of Medicine (United States)

2010-08-15T23:59:59.000Z

444

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program  

E-Print Network [OSTI]

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program publication is funded by the Division of asphalt pavements. TECHNOLOGY TRANSFER PROGRAM JULY 2010, VOL. 2, NO. 1 Warm Mix Asphalt Hits the Road, and California LTAP Field Engineer, Technology Transfer Program, Institute of Transportation Studies, UC Berkeley

California at Berkeley, University of

445

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program  

E-Print Network [OSTI]

PAVEMENT TECHNOLOGY UPDATE This Technology Transfer Program publication is funded by the Division solve the very serious problem of waste tire disposal. TECHNOLOGY TRANSFER PROGRAM SEPTEMBER 2009, VOL, University of California Pavement Research Center, and California LTAP Field Engineer, Technology Transfer

California at Berkeley, University of

446

Venus Technology Plan Venus Technology Plan  

E-Print Network [OSTI]

Venus Technology Plan May 2014 #12; ii Venus Technology Plan At the Venus Exploration a Roadmap for Venus Exploration (RVE) that is consistent with VEXAG priorities as well as Planetary Decadal Survey priorities, and (3) develop a Technology Plan for future Venus missions (after a Technology

Rathbun, Julie A.

447

Mechanically and optically controlled graphene valley filter  

SciTech Connect (OSTI)

We theoretically investigate the valley-dependent electronic transport through a graphene monolayer modulated simultaneously by a uniform uniaxial strain and linearly polarized light. Within the Floquet formalism, we calculate the transmission probabilities and conductances of the two valleys. It is found that valley polarization can appear only if the two modulations coexist. Under a proper stretching of the sample, the ratio of the light intensity and the light frequency squared is important. If this quantity is small, the electron transport is mainly contributed by the valley-symmetric central band and the conductance is valley unpolarized; but when this quantity is large, the valley-asymmetric sidebands also take part in the transport and the valley polarization of the conductance appears. Furthermore, the degree of the polarization can be tuned by the strain strength, light intensity, and light frequency. It is proposed that the detection of the valley polarization can be realized utilizing the valley beam splitting. Thus, a graphene monolayer can be used as a mechanically and optically controlled valley filter.

Qi, Fenghua; Jin, Guojun, E-mail: gjin@nju.edu.cn [National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093 (China)

2014-05-07T23:59:59.000Z

448

Electrically heated particulate filter with zoned exhaust flow control  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter that includes X zones. An electrical heater includes Y heater segments that are associated with respective ones of the X zones. The electrical heater is arranged upstream from and proximate with the PM filter. A valve assembly includes Z sections that are associated with respective ones of the X zones. A control module adjusts flow through each of the Z sections during regeneration of the PM filter via control of the valve assembly. X, Y and Z are integers.

Gonze, Eugene V [Pinckney, MI

2012-06-26T23:59:59.000Z

449

NREL: Technology Transfer - Technology Partnership Agreements  

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

Technology Partnership Agreements Technology Partnership Agreements Through technology partnership agreements, NREL provides partners with technical support to help commercialize and deploy energy technologies and products. We do not fund any projects under a technology partnership agreement. The partner provides the necessary resources and covers our costs of providing technical services. NREL does provide funding opportunities through competitively placed contracts. For more information, see our business opportunities. Process The technology partnership agreement process basically includes 11 steps. See the NREL Technology Partnership Agreement Process flowchart. We are committed to working through these steps in a timely manner. Experience suggests that the fastest means to reach an agreement is through

450

In Vivo Evaluation of a Retrievable Vena Cava Filter-The Dibie-Musset Filter: Experimental Results  

SciTech Connect (OSTI)

Purpose: To evaluate, in an animal model, the efficacy and safety of a 7 Fr percutaneous vena cava filter for temporary or permanent use. Methods: The Dibie-Musset (DM) filter is a wire preformed into a double-spiral shape with a spring effect. The experiment was performed in 15 adult sheep and consisted of the insertion of 45 filters, clot trapping tests, and filter retrieval. Follow-up in all sheep consisted of radiologic (abdominal radiograph, inferior vena cavogram, abdominal computed tomography), macroscopic, and microscopic examinations between days 8 and 386 after filter placement. Results: Of the 45 filters implanted in 15 sheep, 29 were retrieved between day 0 and day 15. Filtration efficiency was 100% for clots 4 x 4 x 20 mm. No long-term (1 year) side-effects were detectable. Microscopic examination of the vein wall showed only a dense intimal fibrosis without signs of acute inflammation at 1 year. Conclusion: These results support the efficiency and safety of the DM filter in an animal model.

Dibie, Alain [Departement Cardio-Vasculaire, Institut Mutualiste Montsouris, Choisy 6, Place de Port au Prince, F-75013 Paris (France); Musset, Dominique [Service de Cardiologie, Hopital Antoine Beclere, 158, rue de la Porte de Trivaux, F-92200 Clamart (France); Heissler, Marc [Departement Cardio-Vasculaire, Institut Mutualiste Montsouris, Choisy 6, Place de Port au Prince, F-75013 Paris (France); Fournet, Jean-Christophe [Service d'Anatomie et de Cytologie Pathologiques, Hopital Necker, 159 rue de Sevres, F-75015 Paris (France); Palau, Robert; Laborde, Francois [Departement Cardio-Vasculaire, Institut Mutualiste Montsouris, Choisy 6, Place de Port au Prince, F-75013 Paris (France)

1998-03-15T23:59:59.000Z

451

Modeling of a confinement bypass accident with CONSEN, a fast-running code for safety analyses in fusion reactors  

Science Journals Connector (OSTI)

Abstract The CONSEN (CONServation of ENergy) code is a fast running code to simulate thermal-hydraulic transients, specifically developed for fusion reactors. In order to demonstrate CONSEN capabilities, the paper deals with the accident analysis of the magnet induced confinement bypass for ITER design 1996. During a plasma pulse, a poloidal field magnet experiences an over-voltage condition or an electrical insulation fault that results in two intense electrical arcs. It is assumed that this event produces two one square meters ruptures, resulting in a pathway that connects the interior of the vacuum vessel to the cryostat air space room. The rupture results also in a break of a single cooling channel within the wall of the vacuum vessel and a breach of the magnet cooling line, causing the blow down of a steam/water mixture in the vacuum vessel and in the cryostat and the release of 4 K helium into the cryostat. In the meantime, all the magnet coils are discharged through the magnet protection system actuation. This postulated event creates the simultaneous failure of two radioactive confinement barrier and it envelopes all type of smaller \\{LOCAs\\} into the cryostat. Ice formation on the cryogenic walls is also involved. The accident has been simulated with the CONSEN code up to 32 h. The accident evolution and the phenomena involved are discussed in the paper and the results are compared with available results obtained using the MELCOR code.

Gianfranco Caruso; Fabio Giannetti; Maria Teresa Porfiri

2013-01-01T23:59:59.000Z

452

Manufacturing Science and Technology: Technologies  

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

Sol-Gel Glasses Sol-Gel Glasses PDF format (74 kb) Sol Gel Sol Gel Coating with Sol-Gel Glasses Coating with Sol-Gel Glasses The Manufacturing Science & Technology Center conducts process development and scale-up of ceramic and glass materials prepared by the sol-gel process. Sol-gel processing uses solutions prepared at low temperature rather than high temperature powder processing to make materials with controlled properties. A precursor sol-gel solution (sol) is either poured into a mold and allowed to gel or is diluted and applied to a substrate by spinning, dipping, spraying, electrophoresis, inkjet printing or roll coating. Controlled drying of the wet gel results in either a ceramic or glass bulk part or a thin film on a glass, plastic, ceramic or metal substrate.

453

Manufacturing Science and Technology: Technologies  

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

Ion Beam Manufacture Ion Beam Manufacture PDF format (113 kb) Example sine wave FIB sputtered into initially planar Si substrate Example sine wave FIB sputtered into initially planar Si substrate Sandia Manufacturing Science & Technology's Focused Ion Beam (FIB) laboratory provides an opportunity for research, development and prototyping. Currently, our scientists are developing methods for ion beam sculpting microscale tools, components and devices. This includes shaping of specialty tools such as end-mills, turning tools and indenters. Many of these have been used in ultra-precision machining DOE applications. Additionally, staff are developing the capability to ion mill geometrically-complex features and substrates. This includes the ability to sputter predetermined curved shapes of various symmetries and

454

Manufacturing Science and Technology: Technologies  

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

3 foot diameter cyanate ester / fiberglass laminated antenna 3 foot diameter cyanate ester / fiberglass laminated antenna 3 foot diameter cyanate ester / fiberglass laminated antenna Composites PDF format (145 kb) Polymer composite materials are composed of fibers in an organic matrix and can be useful in applications that require a high strength-to-weight ratio. Sandia's MS&T staff will work with you from part design, through mold and tooling design, and on through fabrication. The department is capable of fabricating small and large complex parts and will help you choose the most economical technique for your composite needs. Capabilities: The Center has a comprehensive program on the mechanical engineering design, tooling and fixturing, lay-out, complete processing of the composite structure, and technology transfer of composite structures for a

455

Manufacturing Science and Technology: Technologies  

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

Laser Engineered Net Shaping(tm) Laser Engineered Net Shaping(tm) PDF format (140 kb) picture of processing blade Processing Blade Sandia National Laboratories has developed a new technology to fabricate three-dimensional metallic components directly from CAD solid models. This process, called Laser Engineered Net ShapingT (LENS®), exhibits enormous potential to revolutionize the way in which metal parts, such as complex prototypes, tooling, and small-lot production items, are produced. The process fabricates metal parts directly from the Computer Aided Design (CAD) solid models using a metal powder injected into a molten pool created by a focused, high-powered laser beam. Simultaneously, the substrate on which the deposition is occurring is scanned under the beam/powder interaction zone to fabricate the desired

456

Improvement of a turbocharger by-pass valve and impact on performance, controllability, noise and durability  

Science Journals Connector (OSTI)

ABSTRACT Over the past years, the evolution of emission standards as well as the advent of Fuel economy targets has driven the need for higher controllability of boost pressure. This is a strong trend, which will continue to be true for both gasoline and diesel engine applications as we prepare for further evolutions of standards and introduction of fuel economy regulations. While engine boundary conditions have become harsher, fine, accurate and sustainable control of boost is challenging the way mechatronics components are engineered. This requires us to apply a System Engineering approach and improve our understanding of the behaviour of the entire control chain so that we can ultimately influence the design and drive performance at the System level. This paper describes key elements of the kinematic tools developed by Honeywell Turbocharger Technologies in order to optimize turbocharger control solutions. It includes details on CAE applications such as fluid dynamics, flexible multi-body dynamics and thermo-mechanical simulations and how they can be linked together to analyse a complete system. It highlights the importance of understanding the behaviour of the whole control chain from the actuator command to the turbocharger and engine response. The paper presents results from one main examples on a new waste-gate concept for Fixed geometry turbochargers primarily for gasoline applications. This examples show how kinematic tools can be applied to achieve controllability and durability targets while accelerating development cycle time.

L. Toussaint; M. Marques; N. Morand; P. Davies; C. Groves; F. Tomanec; M. Zatko; D. Vlachy; R. Mrazek

2014-01-01T23:59:59.000Z

457

An appreciation of subsonic engine technology  

Science Journals Connector (OSTI)

Single flow, bypass turbojet engines and turboprop engines are compared, taking a division between the ... and propulsive efficiency, as well as specific fuel consumption, specific thrust and power rating, is ......

Ir. Egbert Torenbeek

1982-01-01T23:59:59.000Z

458

Microhydropower Conveyance and Filter Basics | Department of Energy  

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

Conveyance and Filter Basics Conveyance and Filter Basics Microhydropower Conveyance and Filter Basics August 16, 2013 - 3:53pm Addthis Before water enters the turbine or waterwheel of a microhydropower system, it is funneled through a series of components that control its flow and filter out debris. These components include the headrace, forebay, and water conveyance (or channel, pipeline, or penstock). The headrace is a waterway that runs parallel to the water source. A headrace is sometimes necessary for hydropower systems when insufficient head, or vertical drop, is provided and is usually constructed of cement or masonry. The headrace leads to the forebay, which also is made of concrete or masonry. It functions as a settling pond for large debris that would otherwise flow into the system and damage the turbine.

459

Bilayer-fish-scale ultrabroad terahertz bandpass filter  

Science Journals Connector (OSTI)

A bilayer fish-scale metamaterial is experimentally demonstrated to function as a broad bandpass filter in the terahertz regime. The measured 3 dB-bandwidth for normal incidence is...

Zhang, Xueqian; Gu, Jianqiang; Cao, Wei; Han, Jiaguang; Lakhtakia, Akhlesh; Zhang, Weili

2012-01-01T23:59:59.000Z

460

Spacetime Kalman filter Noel Cressie & Christopher K. Wikle  

E-Print Network [OSTI]

Space­time Kalman filter Noel Cressie & Christopher K. Wikle Volume 4, pp 2045­2049 in Encyclopedia], Meiring et al. [17], and Wikle and Cressie [22]. A General Space­Time Dynamical Model Before presenting

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

MATCHED FILTER COMPUTATION ON FPGA, CELL, AND GPU  

SciTech Connect (OSTI)

The matched filter is an important kernel in the processing of hyperspectral data. The filter enables researchers to sift useful data from instruments that span large frequency bands. In this work, they evaluate the performance of a matched filter algorithm implementation on accelerated co-processor (XD1000), the IBM Cell microprocessor, and the NVIDIA GeForce 6900 GTX GPU graphics card. They provide extensive discussion of the challenges and opportunities afforded by each platform. In particular, they explore the problems of partitioning the filter most efficiently between the host CPU and the co-processor. Using their results, they derive several performance metrics that provide the optimal solution for a variety of application situations.

BAKER, ZACHARY K. [Los Alamos National Laboratory; GOKHALE, MAYA B. [Los Alamos National Laboratory; TRIPP, JUSTIN L. [Los Alamos National Laboratory

2007-01-08T23:59:59.000Z

462

Bloom Filter Based Intrusion Detection for Smart Grid  

E-Print Network [OSTI]

-gram analysis and Bloom Filter. The predictable and regular nature of the SCADA communication patterns is exploited to train the intrusion detection system. The protocol considered to test the proposed approach is MODBUS which is used for communication between a...

Parthasarathy, Saranya

2012-07-16T23:59:59.000Z

463

STABLE FILTERING SCHEMES WITH RATIONAL DILATIONS BRODY DYLAN JOHNSON  

E-Print Network [OSTI]

STABLE FILTERING SCHEMES WITH RATIONAL DILATIONS BRODY DYLAN JOHNSON Abstract. The relationship Services Administration at St. Louis University. 1 #12;2 BRODY DYLAN JOHNSON If is a scaling function

Johnson, Brody Dylan

464

Kalman Filter and Analog Schemes to Postprocess Numerical Weather Predictions  

Science Journals Connector (OSTI)

Two new postprocessing methods are proposed to reduce numerical weather prediction’s systematic and random errors. The first method consists of running a postprocessing algorithm inspired by the Kalman filter (KF) through an ordered set of analog ...

Luca Delle Monache; Thomas Nipen; Yubao Liu; Gregory Roux; Roland Stull

2011-11-01T23:59:59.000Z

465

Chip-Scale Quadrupole Mass Filters for Portable Mass Spectrometry  

E-Print Network [OSTI]

We report the design, fabrication, and characterization of a new class of chip-scale quadrupole mass filter (QMF). The devices are completely batch fabricated using a wafer-scale process that integrates the quadrupole ...

Cheung, Kerry

466

An improved method for weighted least squares IIR filter design  

E-Print Network [OSTI]

Recently, a new method for IIR weighted least squares filter design has been proposed. In this method, the problem of approximating a desired frequency response using a rational function is solved using an iterative approach. After studying...

Davila-Pazmino, Javier

2012-06-07T23:59:59.000Z

467

Low Power Filtering Techniques for Wideband and Wireless Applications  

E-Print Network [OSTI]

This dissertation presents design and implementation of continuous time analog filters for two specific applications: wideband analog systems such as disk drive channel and low-power wireless applications. Specific focus has been techniques...

Gambhir, Manisha

2010-10-12T23:59:59.000Z

468

Nonlinear bayesian filtering with applications to estimation and navigation  

E-Print Network [OSTI]

In principle, general approaches to optimal nonlinear filtering can be described in a unified way from the recursive Bayesian approach. The central idea to this recur- sive Bayesian estimation is to determine the probability density function...

Lee, Deok-Jin

2005-08-29T23:59:59.000Z

469

Comparison of Ensemble Kalman Filters under Non-Gaussianity  

Science Journals Connector (OSTI)

Recently various versions of ensemble Kalman filters (EnKFs) have been proposed and studied. This work concerns, in a mathematically rigorous manner, the relative performance of two major versions of EnKF when the forecast ensemble is non-...

Jing Lei; Peter Bickel; Chris Snyder

2010-04-01T23:59:59.000Z

470

Grid Security Gateway on RADIUS and Packet Filter  

Science Journals Connector (OSTI)

RADIUS specified by RFC2865 and RFC2866 is used widely for remote dial-in user authentication and authorization. Packet filter such as Linux Netfilter is a primary toolkit to develop firewall or intrusion detecti...

Jing Cao; BingLiang Lou

2004-01-01T23:59:59.000Z

471

Radio Frequency Diesel Particulate Filter Sensor Reduces Fuel...  

Office of Environmental Management (EM)

this process, known as regeneration, to only occur when needed, thereby reducing fuel consumption and enabling longer filter life. The RF-DPF can be used with light- and...

472

California Energy Standards Recognize the Importance of Filter...  

Energy Savers [EERE]

filter sizing is an issue that applies to all new and existing homes that use ducted HVAC systems-about 68% of existing U.S. homes and most of the homes currently under...

473

HVAC efficiency: Can filter selection reduce HVAC energy costs?  

Science Journals Connector (OSTI)

In a society becoming more aware of the effects of energy consumption, Zoe Grainge takes a look at whether filter efficiency can go some way to ease the energy burden of HVAC systems.

Zoe Grainge

2007-01-01T23:59:59.000Z

474

High efficiency particulate removal with sintered metal filters  

SciTech Connect (OSTI)

Because of their particle removal efficiencies and durability, sintered metal filters have been chosen for high efficiency particulate air (HEPA) filter protection in the off-gas treatment system for the proposed Idaho National Engineering Laboratory Transuranic Waste Treatment Facility. Process evaluation of sintered metal filters indicated a lack of sufficient process design data to ensure trouble-free operation. Subsequence pilot scale testing was performed with flyash as the test particulate. The test results showed that the sintered metal filters can have an efficiency greater than 0.9999999 for the specific test conditions used. Stable pressure drop characteristics were observed in pulsed and reversed flow blowback modes of operation. Over 4900 hours of operation were obtained with operating conditions ranging up to approximately 90/sup 0/C and 24 vol % water vapor in the gas stream.

Kirstein, B.E.; Paplawsky, W.J.; Pence, D.T.; Hedahl, T.G.

1981-01-01T23:59:59.000Z

475

Lattice Boltzmann simulation on continuously regenerating diesel filter  

Science Journals Connector (OSTI)

...of the filter. We simulated a continuously regenerating DPF while simultaneously considering the deposition and combustion processes of soot particles. 2. Analytical model and X-ray computed tomography measurement In this section, the lattice...

2011-01-01T23:59:59.000Z

476

SCALE-CORRECTED ENSEMBLE KALMAN FILTER FOR OBSERVATIONS OF PRODUCTION  

E-Print Network [OSTI]

to introduce bias in production forecasts. The Scale-Corrected Ensemble Kalman Filter (SCEnKF) is a method is pressure at time t. Reservoir production properties at time t, such as gas-oil ratio (gor), bottom hole

Eidsvik, Jo

477

MUS420/EE367A Lecture 12 Wave Digital Filters  

E-Print Network [OSTI]

resistances, we obtain the following wave digital filter elements (the elementary one-ports): Inductor: v(t) i a port resistance (for reasons we'll discuss later). · In matrix notation, we readily see

Smith III, Julius Orion

478

Modern Processes of Producing Two-Layer Filtering Materials  

Science Journals Connector (OSTI)

The paper describes developments of the Powder Metallurgy Institute (National Academy of Sciences of Belarus) in the field of producing two-layer permeable structures with a filtering layer 0.3–0.4 mm in thick...

P. A. Vityaz; A. F. Ilyushchenko; V. M. Kaptsevich…

2014-01-01T23:59:59.000Z

479

GPS position determination using a nonlinear predictive filter  

E-Print Network [OSTI]

GPS POSITION DETERIvlINATION USING A NONLINEAR PREDICTIVE FILTER A Thesis by CURTIS BRANDON WEBB Submitted to the Office of Graduate Studies of Texas AEeM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 2002 Major Subject: Aerospace Engineering GPS POSITION DETERlvIINATION USING A NONLINEAR PREDICTIVE FILTER A Thesis by CURTIS BRANDON WEBB Submitted to Texas Akh~f University in partial fulfillment of the requirements...

Webb, Curtis Brandon

2012-06-07T23:59:59.000Z

480

Amplifier insensitive integrator design for active RC filter synthesis  

E-Print Network [OSTI]

AM?LIFIER INSENSITIVE INTEGRATOR DESIGN FOR ACTIVE RC FILTER SYNTHESIS A Thesis by GLENN ROGER BAILEY Submitted to the Graduate College of Texas A&M University in partial fulfillment of the'requirement for the degree of MASTER OF SCIENCE... May 1980 Major Subject: Electrical Engineering AMPLIFIER INSENSITIVE INTEGRATOR DESIGN FOR ACTIVE RC FILTER SYNTHESIS A Thesis by GLENN ROGER BAILEY Approved as to style and content by: (Chairman of Comit ee) (Member) ( ember) (Member) (Hea...

Bailey, Glenn Roger

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "bypass filter technologies" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Physics prospects of UV-filtered overlap quarks  

E-Print Network [OSTI]

Some key features of the overlap operator with a UV-filtered Wilson kernel are discussed. The first part concerns spectral properties of the underlying shifted hermitean Wilson operator and the relation to the observed speedup of the overlap construction. Next, the localization of the filtered overlap and its axial-vector renormalization constant are discussed. Finally, results of an exploratory scaling study for $m_{ud}, m_s$ and $f_\\pi, f_K$ are presented.

Stephan Durr; Christian Hoelbling; Urs Wenger

2005-11-22T23:59:59.000Z

482

Zone heated inlet ignited diesel particulate filter regeneration  

SciTech Connect (OSTI)

An exhaust system that processes exhaust generated by an engine is provided. The system includes: a particulate filter (PF) that is disposed downstream of the engine and that filters particulates from the exhaust; and a grid that includes electrically resistive material that is segmented by non-conductive material into a plurality of zones and wherein the grid is applied to an exterior upstream surface of the PF.

Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

2012-06-26T23:59:59.000Z

483

Performance characterization of a packed bed electro-filter  

E-Print Network [OSTI]

PERFORMANCE CHARACTERIZATION OF A PACKED BED ELECTRO-FILTER A Thesis by A JAY NARAYANAN Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... December 1990 Major Subject: Safety Engineering PERFORMANCE CHARACTERIZATION OF A PACKED BED ELECTRO-FILTER A Thesis by AJAY NARAYANAN Approved as to style and content by: John P. Wagn (Ch ' of the Com ittee) Aydin Akgerman (Member) Ri ard B...

Narayanan, Ajay

2012-06-07T23:59:59.000Z

484

Rayleigh wave filter for three-component seismic data  

E-Print Network [OSTI]

RAYLEIGH WAVE FILTER FOR THREE ? COMPONENT SEISMIC DATA A Thesis by SYED ALI ASIF ZAIDI Submitted to the Office of Graduate Studies of Texas A&M Lrniversity in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... August 1991 Major Subject: Geophysics RAYLEIGH WAVE FILTER FOR THREE ? COMPONENT SEISMIC DATA A Thesis SYED ALI ASIF ZAIDI Approved as to style and content by: Steven . Harder air of Committee) Joel S. Watkins (Member) Ronald M. Brimhall (1...

Zaidi, Syed Ali Asif

2012-06-07T23:59:59.000Z

485

Coefficient quantization effects in block state variable digital filters  

E-Print Network [OSTI]

COEFFICIENT QUANTIZATION EFFECTS IN BLOCK STATE VARIABLE DIGITAL FILTERS A Thesis by KAB JOO LEE Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree of MASTER... OF SCIENCE August 1991 Major Subject: Electrical Engineering COEFFICIENT QIJANTIZATIOU EFFECTS IN l3LOCI~ STATE VARIABLE DIGITAL FILTERS A Thesis hs IiAB JOO LEE Approved as to style and content by: WVilliam G. )3liss (Chair of Comnaittee) Norman C...

Lee, Kab Joo

2012-06-07T23:59:59.000Z

486

The design of laser trimmable temperature invariant active NMOS filters  

E-Print Network [OSTI]

THE DESIGN OF LASER TRIMMABLE TEMPERATURE INVARIANT ACTIVE NMOS FILTERS A Thesis MATHEW ANTON RYBICKI Submitted to the Graduate College of Teras A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE... December 1983 Major Subject: Electrical Engineering THE DESIGN OF LASER TRIMMABLE TEMPERA'IURE INVARIANT ACTIVE NMOS FILTERS A Thesis by MATHEW ANTON RYBICKI Approved as to style and content by: Randall L. Geiger (Chairman of Committee) Phil ip ED...

Rybicki, Mathew Anton

2012-06-07T23:59:59.000Z

487

Streamline Assisted Ensemble Kalman Filter - Formulation and Field Application  

E-Print Network [OSTI]

KF first proposed by Evensen (1994) and later by Houtekamer and Mitchell (1998). These include the Ensemble Square Root Filter (EnSRF) (Whitaker and Hamill 2002), the Ensemble Adjustment Filter (EAF) (Anderson 2001) and the Ensemble Transform Kalman... is also supported by the extremely wide range of log-permeabilities in Figure 1.4. A considerable number of model cells exhibit extremely high or low values of permeability. This observation is consistent with previous findings (Gu and Oliver 2006...

Devegowda, Deepak

2010-10-12T23:59:59.000Z

488

Optical Filter Design: Gain Analysis and Tolerance Analysis  

E-Print Network [OSTI]

OPTICAL FILTER DESIGN: GAIN ANALYSIS AND TOLERANCE ANALYSIS A Thesis by VIVEK VANDRASI Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER OF SCIENCE August... 2010 Major Subject: Electrical Engineering OPTICAL FILTER DESIGN: GAIN ANALYSIS AND TOLERANCE ANALYSIS A Thesis by VIVEK VANDRASI Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements...

Vandrasi, Vivek

2011-10-21T23:59:59.000Z

489

Calibrations of filter radiometers for determination of atmospheric optical depth  

Science Journals Connector (OSTI)

Atmospheric optical depths are determined by relating ground-based measurements of direct solar radiation to the extraterrestrial value, I0, that a filter radiometer would read outside the atmosphere. Usually I0 is determined by the Langley extrapolation technique from a high-altitude site, where clear and highly stable atmospheric conditions may be found. Alternatively, I0 can be measured in situ from a stratospheric balloon experiment. We have employed both methods and found agreement to better than 1 %. Filter radiometers tend to change over time, especially when used operationally outdoors. Absolute calibrations in the laboratory are used to monitor the radiometric stability of filter radiometers at the Physikalisch-Meteorologisches Observatorium Davos (PMOD/WRC, Switzerland). A spectral calibration facility based on a calibrated trap detector from the Physikalisch-Technische Bundesanstalt (PTB, Germany) is used to relate the filter radiometer to an accurate and long-term traceable standard. An FEL-lamp-based standard, previously used for several years, was compared with the new trap standard via a filter radiometer at four wavelengths between 368 nm and 862 nm and revealed a systematic difference of the order of 5 %. The link between radiometric and I0 calibration is the value of the extraterrestrial solar spectrum at the filter radiometer wavelengths which can be determined from these two calibrations and compared with published values.

Ch Wehrli

2000-01-01T23:59:59.000Z

490

Synthetic nanotubes lay foundation for new technology: Artificial pores  

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

Synthetic nanotubes lay foundation for new technology: Artificial pores Synthetic nanotubes lay foundation for new technology: Artificial pores mimic key features of natural pores By Tona Kunz * July 17, 2012 Tweet EmailPrint Scientists have overcome key design hurdles to expand the potential uses of nanopores and nanotubes. The creation of smart nanotubes with selective mass transport opens up a wider range of applications for water purification, chemical separation and fighting disease. Nanopores and their rolled up version, nanotubes, consist of atoms bonded to each other in a hexagonal pattern to create an array of nanometer-scale openings or channels. This structure creates a filter that can be sized to select which molecules and ions pass into drinking water or into a cell. The same filter technique can limit the release of chemical by-products

491

Letter to the Editor Does filter media type really affect BRS?  

E-Print Network [OSTI]

and dirt on filters are ozone removal rates. Zhao et al. (2007), studied ozone removal by HVAC filtersLetter to the Editor Does filter media type really affect BRS? Dear Editor, Buchanan et al., (2008: the correlation between high outdoor ozone with the simultaneous use of polyester- synthetic filters and higher

Siegel, Jeffrey

492

Evaluation of HVAC filters as a sampling mechanism for indoor microbial communities  

E-Print Network [OSTI]

Evaluation of HVAC filters as a sampling mechanism for indoor microbial communities Federico Noris Fungi Microbial community HVAC filter Settled dust Air a b s t r a c t HVAC filters are in place of bacterial and fungal concentrations and communities in HVAC filter dust and other sampling locations

Siegel, Jeffrey

493

NREL: Advanced Power Electronics - Technology Basics  

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

Technology Basics Technology Basics Graphic of a small hydrogen-fueled fuel cell vehicle. Check out the interactive graphic of the power electronic components of a hydrogen-fueled fuel cell vehicle. If you drive a car, use a computer, cook with a microwave oven, talk on any type of telephone, listen to a stereo, or use a cordless drill, you use power electronics. Thanks to power electronics, the electricity that runs the things we use every day is processed, filtered, and delivered with maximum efficiency and minimum size and weight. Inside a vehicle's electronic power steering system, power electronics control motors and help move the steering rack. This translates into improved steering response and lower energy consumption. In broad terms, power electronics control the flow of electric power via

494

NETL Technologies Recognized for Technology Development, Transfer |  

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

Recognized for Technology Development, Transfer Recognized for Technology Development, Transfer NETL Technologies Recognized for Technology Development, Transfer October 25, 2013 - 1:31pm Addthis Did you know? The Federal Laboratory Consortium for Technology Transfer is the nationwide network of federal laboratories that provides the forum to develop strategies and opportunities for linking laboratory mission technologies and expertise with the marketplace. In consonance with the Federal Technology Transfer Act of 1986 and related federal policy, the mission of the FLC is to promote and facilitate the rapid movement of federal laboratory research results and technologies into the mainstream of the U.S. economy. Learn more about the FLC. A great invention that sits on a shelf, gathering dust, benefits no one.

495

NREL: Technology Transfer - Technologies Available for Licensing  

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

Technologies Available for Licensing Technologies Available for Licensing Photo of NREL scientist in the NREL Hydrogen Lab. NREL's scientists and engineers develop award-winning technologies available for licensing. NREL scientists and engineers produce breakthrough and award-winning renewable energy and energy efficiency technologies that are available for licensing. We have many licensing opportunities for NREL-developed technologies, including our featured LED technologies. To see all our technologies available for licensing, visit the EERE Innovation Portal and search for NREL. Learn about our licensing agreement process. Contact For more information about licensing NREL-developed technologies, contact Eric Payne, 303-275-3166. Ombuds NREL strives to quickly resolve any issue or concern you may have regarding

496

Fujita LaboratoryTokyo Instituteof Technology Tokyo Instituteof Technology  

E-Print Network [OSTI]

Fujita LaboratoryTokyo Instituteof Technology Tokyo Instituteof Technology Fujita LaboratoryTokyo Institute of Technology Tokyo Institute of Technology 231 #12;Fujita LaboratoryTokyo Instituteof Technology Tokyo Instituteof Technology 2 IT #12;Fujita LaboratoryTokyo Instituteof

497

Modern Biomass Conversion Technologies  

Science Journals Connector (OSTI)

This article gives an overview of the state-of-the-art of key biomass conversion technologies currently deployed and technologies that may...2...capture and sequestration technology (CCS). In doing so, special at...

Andre Faaij

2006-03-01T23:59:59.000Z

498

Building Technologies Research and  

E-Print Network [OSTI]

Building Technologies Research and Integration Center Breaking new ground in energy efficiency #12;Building Technologies Research To enjoy a sustainable energy and environmental future, America must these enormous challenges. Today, through the Building Technologies and Research Integration Center (BTRIC

Oak Ridge National Laboratory

499

Hydrogen Technology Research at SRNL  

SciTech Connect (OSTI)

The Savannah River National Laboratory (SRNL) is a U.S. Department of Energy research and development laboratory located at the Savannah River Site (SRS) near Aiken, South Carolina. SRNL has over 50 years of experience in developing and applying hydrogen technology, both through its national defense activities as well as through its recent activities with the DOE Hydrogen Programs. The hydrogen technical staff at SRNL comprises over 90 scientists, engineers and technologists. SRNL has ongoing R&D initiatives in a variety of hydrogen storage areas, including metal hydrides, complex hydrides, chemical hydrides and carbon nanotubes. SRNL has over 25 years of experience in metal hydrides and solid-state hydrogen storage research, development and demonstration. As part of its defense mission at SRS, SRNL developed, designed, demonstrated and provides ongoing technical support for the largest hydrogen processing facility in the world based on the integrated use of metal hydrides for hydrogen storage, separation, and compression. The SRNL has been active in teaming with academic and industrial partners to advance hydrogen technology. A primary focus of SRNL's R&D has been hydrogen storage using metal and complex hydrides. SRNL and its Hydrogen Technology Research Laboratory have been very successful in leveraging their defense infrastructure, capabilities and investments to help solve this country's energy problems. SRNL has participated in projects to convert public transit and utility vehicles for operation using hydrogen fuel. Two major projects include the H2Fuel Bus and an Industrial Fuel Cell Vehicle (IFCV) also known as the GATOR{trademark}. Both of these projects were funded by DOE and cost shared by industry. These are discussed further in Section 3.0, Demonstration Projects. In addition to metal hydrides technology, the SRNL Hydrogen group has done extensive R&D in other hydrogen technologies, including membrane filters for H2 separation, doped carbon nanotubes, storage vessel design and optimization, chemical hydrides, hydrogen compressors and hydrogen production using nuclear energy. Several of these are discussed further in Section 2, SRNL Hydrogen Research and Development.

Danko, E.

2011-02-13T23:59:59.000Z

500

Final Report: Fan Filter Unit Project  

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

61684 61684 Demonstration of Advanced Filtration Technologies: Developing Energy-rebate Criteria through Performing Standard Laboratory Tests and Statistical Analyses Final Report (LBNL- 61684) To California Energy Commission 2007 Tengfang Xu and Duo Wang 2 Disclaimer This document was prepared as an account of work sponsored by the United States Government and California Energy Commission. While this document is believed to contain correct information, neither the United States Government nor any agency thereof, nor California Energy Commission, nor The Regents of the University of California, nor any of their employees, makes any warranty, express or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or