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Note: This page contains sample records for the topic "airborne particulates pm10" 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.


1

Capture of PM-10 and smaller particulate using pulse-jet filters  

SciTech Connect (OSTI)

Particle matter of 10 micron or smaller diameter (PM-10) has been identified as a hazard. This is due to the tendency of these particles to be inhaled and retained in the human body. Some studies have identified the particles in smaller ranges (e.g. PM-2.5) as even greater hazards. Regulatory authorities are placing emphasis on identifying PM-10 emissions and controlling such emissions. The four standard particulate control technologies (Mechanical Collector, Wet Scrubber, Fabric Filter, Electrostatic Precipitator) can capture particles in this PM-10 range but standard design mechanical collectors and wet scrubbers will not capture these particles efficiently. Fabric filters and electrostatic precipitators will capture these fine particles efficiently but capture larger particles with greater efficiency. Therefore, the emission from all these devices are predominantly in the PM-10 range.

Gregg, W.W. [Hosokawa Mikropul Environmental Systems, Morris Plains, NJ (United States)

1994-12-31T23:59:59.000Z

2

Airborne Particulate Threat Assessment  

SciTech Connect (OSTI)

Aerosol threat detection requires the ability to discern between threat agents and ambient background particulate matter (PM) encountered in the environment. To date, Raman imaging technology has been demonstrated as an effective strategy for the assessment of threat agents in the presence of specific, complex backgrounds. Expanding our understanding of the composition of ambient particulate matter background will improve the overall performance of Raman Chemical Imaging (RCI) detection strategies for the autonomous detection of airborne chemical and biological hazards. Improving RCI detection performance is strategic due to its potential to become a widely exploited detection approach by several U.S. government agencies. To improve the understanding of the ambient PM background with subsequent improvement in Raman threat detection capability, ChemImage undertook the Airborne Particulate Threat Assessment (APTA) Project in 2005-2008 through a collaborative effort with the National Energy Technology Laboratory (NETL), under cooperative agreement number DE-FC26-05NT42594. During Phase 1 of the program, a novel PM classification based on molecular composition was developed based on a comprehensive review of the scientific literature. In addition, testing protocols were developed for ambient PM characterization. A signature database was developed based on a variety of microanalytical techniques, including scanning electron microscopy, FT-IR microspectroscopy, optical microscopy, fluorescence and Raman chemical imaging techniques. An automated particle integrated collector and detector (APICD) prototype was developed for automated collection, deposition and detection of biothreat agents in background PM. During Phase 2 of the program, ChemImage continued to refine the understanding of ambient background composition. Additionally, ChemImage enhanced the APICD to provide improved autonomy, sensitivity and specificity. Deliverables included a Final Report detailing our findings and APICD Gen II subsystems for automated collection, deposition and detection of ambient particulate matter. Key findings from the APTA Program include: Ambient biological PM taxonomy; Demonstration of key subsystems needed for autonomous bioaerosol detection; System design; Efficient electrostatic collection; Automated bioagent recognition; Raman analysis performance validating Td<9 sec; Efficient collection surface regeneration; and Development of a quantitative bioaerosol defection model. The objective of the APTA program was to advance the state of our knowledge of ambient background PM composition. Operation of an automated aerosol detection system was enhanced by a more accurate assessment of background variability, especially for sensitive and specific sensing strategies like Raman detection that are background-limited in performance. Based on this improved knowledge of background, the overall threat detection performance of Raman sensors was improved.

Patrick Treado; Oksana Klueva; Jeffrey Beckstead

2008-12-31T23:59:59.000Z

3

Airborne particulate discriminator  

DOE Patents [OSTI]

A method and apparatus for rapid and accurate detection and discrimination of biological, radiological, and chemical particles in air. A suspect aerosol of the target particulates is treated with a taggant aerosol of ultrafine particulates. Coagulation of the taggant and target particles causes a change in fluorescent properties of the cloud, providing an indication of the presence of the target.

Creek, Kathryn Louise (San Diego, CA); Castro, Alonso (Santa Fe, NM); Gray, Perry Clayton (Los Alamos, NM)

2009-08-11T23:59:59.000Z

4

E-Print Network 3.0 - airborne particulates impact Sample Search...  

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

public health threat of air pollution Summary: . Currently there are six "criteria pollutants" for air pollution: PM10 (defined as particulate matter... a more specific human...

5

E-Print Network 3.0 - airborne particulate samples Sample Search...  

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

the harm caused by airborne... heart and lung problems associated with airborne pollutants, concerns about the negative effects of bad... particulate matter at individual...

6

E-Print Network 3.0 - airborne particulates european Sample Search...  

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

de mathmatiques Collection: Mathematics 12 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: Statistical Issues in the Study of...

7

E-Print Network 3.0 - airborne fine particulate Sample Search...  

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

particulate matter otherwise known as aerosols. However health risks from these pollutants... Airborne Pollution In urban environments What are the real health effects of...

8

E-Print Network 3.0 - airborne particulate matter Sample Search...  

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

Collection: Environmental Sciences and Ecology 2 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: Statistical Issues in the...

9

E-Print Network 3.0 - airborne particulates Sample Search Results  

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

Collection: Environmental Sciences and Ecology 2 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: Statistical Issues in the...

10

Prospecting by sampling and analysis of airborne particulates and gases  

DOE Patents [OSTI]

A method is claimed for prospecting by sampling airborne particulates or gases at a ground position and recording wind direction values at the time of sampling. The samples are subsequently analyzed to determine the concentrations of a desired material or the ratios of the desired material to other identifiable materials in the collected samples. By comparing the measured concentrations or ratios to expected background data in the vicinity sampled, one can select recorded wind directions indicative of the upwind position of the land-based source of the desired material.

Sehmel, G.A.

1984-05-01T23:59:59.000Z

11

Speciation of Sb in airborne particulate matter, vehicle brake linings, and brake pad wear residues  

E-Print Network [OSTI]

Speciation of Sb in airborne particulate matter, vehicle brake linings, and brake pad wear residues: XAS XANES EXAFS Antimony Particulate matter Brake linings a b s t r a c t Insights into the speciation of Sb in samples of brake linings, brake pad wear residues, road dust, and atmospheric particulate

Short, Daniel

12

Air pollution and daily mortality in the Coachella Valley, California: A study of PM10 dominated by coarse particles  

SciTech Connect (OSTI)

Many epidemiological studies provide evidence of an association between airborne particles, measured as PM10 (particulate matter less than 10{micro}m in diameter), and daily morbidity and mortality. Most of these studies have been conducted in urban areas where PM10 consists primarily of fine particles (<2.5 {micro}m in diameter). Few studies have investigated impacts associated with coarse mode particles (>2.5 {micro}m in diameter). The authors investigated associations between PM10 and daily mortality in the Coachella Valley, a desert resort and retirement area east of Los Angeles, where coarse particles of geologic origin typically comprise approximately 50--60% of PM10 and can exceed 90% during wind events. Their analysis utilized daily data on mortality from 1989 through 1992 as well as several pollutant and meteorological variables, including PM10, nitrates, sulfates, ozone, nitrogen dioxide, carbon monoxide, temperature, and relative humidity. Outcome variables included several measures of daily mortality, including all-cause, cardiovascular and respiratory mortality, and counts of deaths for those above age 50. Multivariate Poisson regression models were used to explain these health endpoints, controlling for temperature, humidity, day of the week, season, and time, using locally weighted smoothing techniques. The analysis indicated statistically significant associations between PM10 and each measure of mortality.

Ostro, B.D.; Hurley, S.; Lipsett, M.J.

1999-10-01T23:59:59.000Z

13

The particulate and vapor phase components of airborne polyaromatic hydrocarbons (PAHs) in coal gasification pilot plants  

E-Print Network [OSTI]

THE PARTICULATE AND VAPOR PHASE COMPONENTS OF AIRBORNE POLYAROMATIC HYDROCARBONS(PAHs) IN COAL GASIFICATION PILOT PLANTS A Thesis by ERIC JON BRINK Submitted to the Graduate College of Texas A & M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1980 Major Subject: Industrial Hygiene THE PARTICULATE AND VAPOR PHASE COMPONENTS OF AIRBORNE POLYAROMATIC HYDROCARBONS (PAHs) IN COAL GASIFICATION PILOT PLANTS A Thesis by ERIC JON BRINK...

Brink, Eric Jon

1980-01-01T23:59:59.000Z

14

Tonopah Test Range Air Monitoring: CY2012 Meteorological, Radiological, and Airborne Particulate Observations  

SciTech Connect (OSTI)

In 1963, the Atomic Energy Commission (AEC), predecessor to the US Department of Energy (DOE), implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range (NAFR)). Operation Roller Coaster consisted of four tests in which chemical explosions were detonated in the presence of nuclear devices to assess the dispersal of radionuclides and evaluate the effectiveness of storage structures to contain the ejected radionuclides. These tests resulted in dispersal of plutonium over the ground surface downwind of the test ground zero. Three tests, Clean Slate 1, 2, and 3, were conducted on the TTR in Cactus Flat; the fourth, Double Tracks, was conducted in Stonewall Flat on the NTTR. DOE is working to clean up and close all four sites. Substantial cleaned up has been accomplished at Double Tracks and Clean Slate 1. Cleanup of Clean Slate 2 and 3 is on the DOE planning horizon for some time in the next several years. The Desert Research Institute installed two monitoring stations, number 400 at the Sandia National Laboratories Range Operations Center and number 401 at Clean Slate 3, in 2008 and a third monitoring station, number 402 at Clean Slate 1, in 2011 to measure radiological, meteorological, and dust conditions. The primary objectives of the data collection and analysis effort are to (1) monitor the concentration of radiological parameters in dust particles suspended in air, (2) determine whether winds are re-distributing radionuclides or contaminated soil material, (3) evaluate the controlling meteorological conditions if wind transport is occurring, and (4) measure ancillary radiological, meteorological, and environmental parameters that might provide insight to the above assessments. The following observations are based on data collected during CY2012. The mean annual concentration of gross alpha and gross beta is highest at Station 400 and lowest at Station 401. This difference may be the result of using filter media at Station 400 with a smaller pore size than the media used at the other two stations. Average annual gamma exposure at Station 401 is slightly greater than at Station 400 and 402. Average annual gamma exposure at all three TTR stations are in the upper range to slightly higher than values reported for the CEMP stations surrounding the TTR. At higher wind speeds, the saltation counts are greater at Station 401 than at Station 402 while the suspended particulate concentrations are greater at Station 402 than at Statin 401. Although these observations seem counterintuitive, they are likely the result of differences in the soil material present at the two sites. Station 401 is located on an interfluve elevated above two adjacent drainage channels where the soil surface is likely to be composed of coarser material. Station 402 is located in finer sediments at the playa edge and is also subject to dust from a dirt road only 500 m to the north. During prolonged high wind events, suspended dust concentrations at Station 401 peaked with the initial winds then decreased whereas dust concentrations at Station 402 peaked with each peak in the wind speed. This likely reflects a limited PM10 source that is quickly expended at Station 401 relative to an abundant PM10 source at Station 402. In CY2013, to facilitate comparisons between radiological analyses of collected dust, the filter media at all three stations will be standardized. In addition, a sequence of samples will be collected at Station 400 using both types of filter media to enable development of a mathematical relationship between the results derived from the two filter types. Additionally, having acquired approximately four years of observations at Stations 400 and 401 and a year of observations at Station 402, a period-of-record analysis of the radiological and airborne dust conditions will be undertaken.

Mizell, Steve A; Nikolich, George; Shadel, Craig; McCurdy, Greg; Miller, Julianne J

2013-07-01T23:59:59.000Z

15

Elemental composition of airborne particulates in uranium mining and milling operations  

SciTech Connect (OSTI)

Airborne particulates were collected through filters in occupational areas of the uranium mining and milling complex located in Pocos de Caldas, Brazil. The filters were analyzed by microPIXE (particle induced x-ray emission) combined with Rutherford Backscattering (RBS) of the incident protons. The results are discussed in the paper. 4 references, 6 figures, 1 table.

Paschoa, A.S.; Wrenn, M.E.; Jones, K.W.; Cholewa, M.; Carvalho, S.M.

1984-01-01T23:59:59.000Z

16

Apparatus for real-time airborne particulate radionuclide collection and analysis  

DOE Patents [OSTI]

An improved apparatus for collecting and analyzing an airborne particulate radionuclide having a filter mounted in a housing, the housing having an air inlet upstream of the filter and an air outlet downstream of the filter, wherein an air stream flows therethrough. The air inlet receives the air stream, the filter collects the airborne particulate radionuclide and permits a filtered air stream to pass through the air outlet. The improvement which permits real time counting is a gamma detecting germanium diode mounted downstream of the filter in the filtered air stream. The gamma detecting germanium diode is spaced apart from a downstream side of the filter a minimum distance for a substantially maximum counting detection while permitting substantially free air flow through the filter and uniform particulate radionuclide deposition on the filter.

Smart, John E. (West Richland, WA); Perkins, Richard W. (Richland, WA)

2001-01-01T23:59:59.000Z

17

Effect of long-range transport on local PM10 concentrations in the UK  

E-Print Network [OSTI]

This study describes the effects of long-range transport of secondary airborne particles on local PM10 levels in Edinburgh (UK) during the period 1 January to 31 March 1996. Air mass back trajectories for each day were ...

Beverland, Iain J; Tunes, Trygve; Heal, Mathew R; Sozanska, Malgorzata; Elton, Robert A; Agius, Raymond M

2000-01-01T23:59:59.000Z

18

SIZE DISTRIBUTION AND RATE OF PRODUCTION OF AIRBORNE PARTICULATE MATTER GENERATED DURING METAL CUTTING  

SciTech Connect (OSTI)

During deactivation and decommissioning activities, thermal cutting tools, such as plasma torch, laser, and gasoline torch, are used to cut metals. These activities generate fumes, smoke and particulates. These airborne species of matter, called aerosols, may be inhaled if suitable respiratory protection is not used. Inhalation of the airborne metallic aerosols has been reported to cause ill health effects, such as acute respiratory syndrome and chromosome damage in lymphocytes. In the nuclear industry, metals may be contaminated with radioactive materials. Cutting these metals, as in size reduction of gloveboxes and tanks, produces high concentrations of airborne transuranic particles. Particles of the respirable size range (size < 10 {micro}m) deposit in various compartments of the respiratory tract, the fraction and the site in the respiratory tract depending on the size of the particles. The dose delivered to the respiratory tract depends on the size distribution of the airborne particulates (aerosols) and their concentration and radioactivity/toxicity. The concentration of airborne particulate matter in an environment is dependent upon the rate of their production and the ventilation rate. Thus, measuring aerosol size distribution and generation rate is important for (1) the assessment of inhalation exposures of workers, (2) the selection of respiratory protection equipment, and (3) the design of appropriate filtration systems. Size distribution of the aerosols generated during cutting of different metals by plasma torch was measured. Cutting rates of different metals, rate of generation of respirable mass, as well as the fraction of the released kerf that become respirable were determined. This report presents results of these studies. Measurements of the particles generated during cutting of metal plates with a plasma arc torch revealed the presence of particles with mass median aerodynamic diameters of particles close to 0.2 {micro}m, arising from condensation of vaporized material and subsequent rapid formation of aggregates. Particles of larger size, resulting from ejection of melted material or fragments from the cutting zone, were also observed. This study presents data regarding the metal cutting rate, particle size distribution, and their generation rate, while using different cutting tools and metals. The study shows that respirable particles constitute only a small fraction of the released kerf.

M.A. Ebadian, Ph.D.; S.K. Dua, Ph.D., C.H.P.; Hillol Guha, Ph.D.

2001-01-01T23:59:59.000Z

19

Acute health effects of PM10 pollution on symptomatic and asymptomatic children  

SciTech Connect (OSTI)

This study assessed the association between daily changes in respiratory health and respirable particulate pollution (PM10) in Utah Valley during the winter of 1990-1991. During the study period, 24-h PM10 concentrations ranged from 7 to 251 micrograms/m3. Participants included symptomatic and asymptomatic samples of fifth- and sixth-grade students. Relatively small but statistically significant (p less than 0.01) negative associations between peak expiratory flow (PEF) and PM10 were observed for both the symptomatic and asymptomatic samples. The association was strongest for the symptomatic children. Large associations between the incidence of respiratory symptoms, especially cough, and PM10 pollution were also observed for both samples. Again the association was strongest for the symptomatic sample. Immediate and delayed PM10 effects were observed. Respiratory symptoms and PEF changes were more closely associated with 5-day moving-average PM10 levels than with concurrent-day levels. These associations were also observed at PM10 levels below the 24-h standard of 150 micrograms/m3. This study indicates that both symptomatic and asymptomatic children may suffer acute health effects of respirable particulate pollution, with symptomatic children suffering the most.

Pope, C.A. 3d.; Dockery, D.W. (Department of Economics, Brigham Young University, Provo, UT (United States))

1992-05-01T23:59:59.000Z

20

Analyse Statistique de la Pollution par les PM10 en Haute-Normandie  

E-Print Network [OSTI]

Analyse Statistique de la Pollution par les PM10 en Haute-Normandie Fran¸cois-Xavier Jolloisa travail porte sur l'analyse de la pollution par les particules PM10 en r´egion Haute- Normandie entre 2004´eaires et les m´elanges de mod`eles lin´eaires, on mod´elise les effets des vari- ables sur la pollution par

Boyer, Edmond

Note: This page contains sample records for the topic "airborne particulates pm10" 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

E-Print Network 3.0 - airborne particulate threat Sample Search...  

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

standard based on PM2.5, to take effect alongside the earlier standard for PM10 Source: Smith, Richard L. - Department of Statistics and Operations Research, University of North...

22

Macrophage-Mediated Endothelial Inflammatory Responses to Airborne Particulates: Impact of  

E-Print Network [OSTI]

-Fe/F-Al-Si). We have used these particulates, as well as coal fly ash (CFA) and diesel exhaust particulates (DEP remain unresolved. Using a microporous aluminosilicate zeolite Y as a manifold, we have synthesized 1 µm

Dutta, Prabir K.

23

airborne particles pm10: Topics by E-print Network  

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

system consisting of an array of high precision scintillator Time of Flight and silica Aerogel Counters, is discussed. The performances achieved in the beam tests are...

24

E-Print Network 3.0 - airborne fungi particulate Sample Search...  

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

7 BIO-OPTICAL PRESENTATIONS YEARS 2000 2004 Summary: Mexico, November 18-22, 2002. Armstrong, R.A. and Y. Detrs. "Airborne Fungi in Sahara Dust Aerosols... . Rivera-Denizard,...

25

Ensemble forecasting with machine learning algorithms for ozone, nitrogen dioxide and PM10 on the Prev'Air  

E-Print Network [OSTI]

Ensemble forecasting with machine learning algorithms for ozone, nitrogen dioxide and PM10'Air operational platform. This platform aims at forecasting maps, on a daily basis, for ozone, nitrogen dioxide models, ozone, nitrogen dioxide, particulate matter, threshold exceedance 1. Introduction1 Operational

Mallet, Vivien

26

A PM10 emission factor for free stall dairies  

E-Print Network [OSTI]

was determined using the Coulter Counter Multisizer. The results of this process was a representative dairy PM PSD with 28% of TSP emissions being PM10. The reported PM10 24-hour emission factors were 4.7 kg/1000hd/day for the free-stall areas of the facility...

Goodrich, Lee Barry

2006-08-16T23:59:59.000Z

27

Changes in airborne lead particulate in Port Pirie, South Australia, 1986-1996  

SciTech Connect (OSTI)

Port Pirie is 230 km north of Adelaide, the capital of South Australia. The major industry in the city is a lead smelter owned by Pasminco. Fume, dust, and fugitive emissions from the smelter have been deposited in and around Port Pirie over the past 100 years. The results presented in this paper are from an air monitoring station situated at the southeast entrance of the smelter, approximately 600 m from the blast furnace. Measurements include total suspended particulate (TSP) and total suspended particulate lead (TSPL) reported as concentrations ({micro}g/m{sup 3}). Data are available from 1986 to 1996 and consist of 548 measurements. Analysis of geometric mean concentration levels by wind direction showed that while for TSP there was little relationship with wind direction, TSPL increased substantially as the wind came from the direction of the smelter. An analysis of geometric mean concentration levels by wind speed showed that TSP was significantly correlated with wind speed for all wind sectors apart from winds coming from the smelter production area.

Esterman, A.J.; Maynard, E.J. [South Australian Health Commission, Adelaide, South Australia (Australia). Environmental Health Branch] [South Australian Health Commission, Adelaide, South Australia (Australia). Environmental Health Branch

1998-11-01T23:59:59.000Z

28

Tonopah Test Range Air Monitoring: CY2013 Meteorological, Radiological, and Airborne Particulate Observations  

SciTech Connect (OSTI)

In 1963, the U.S. Department of Energy (DOE) (formerly the Atomic Energy Commission [AEC]), implemented Operation Roller Coaster on the Tonopah Test Range (TTR) and an adjacent area of the Nevada Test and Training Range (NTTR) (formerly the Nellis Air Force Range). This test resulted in radionuclide-contaminated soils at Clean Slate I, II, and III. This report documents observations made during on-going monitoring of radiological, meteorological, and dust conditions at stations installed adjacent to Clean Slate I and Clean Slate III and at the TTR Range Operations Control center. The primary objective of the monitoring effort is to determine if winds blowing across the Clean Slate sites are transporting particles of radionuclide-contaminated soils beyond both the physical and administrative boundaries of the sites. Results for the calendar year (CY) 2013 monitoring include: (1) the gross alpha and gross beta values from the monitoring stations are approximately equivalent to the highest values observed during the CY2012 reporting at the surrounding Community Environmental Monitoring Program (CEMP) stations (this was the latest documented data available at the time of this writing); (2) only naturally occurring radionuclides were identified in the gamma spectral analyses; (3) the ambient gamma radiation measurements indicate that the average annual gamma exposure is similar at all three monitoring stations and periodic intervals of increased gamma values appear to be associated with storm fronts passing through the area; and (4) the concentrations of both resuspended dust and saltated sand particles generally increase with increasing wind speed. However, differences in the observed dust concentrations are likely due to differences in the soil characteristics immediately adjacent to the monitoring stations. Neither the resuspended particulate radiological analyses nor the ambient gamma radiation measurements suggest wind transport of radionuclide-contaminated soils.

Mizell, Steve A [DRI; Nikolich, George [DRI; Shadel, Craig [DRI; McCurdy, Greg [DRI; Etyemezian, Vicken [DRI; Miller, Julianne J [DRI

2014-10-01T23:59:59.000Z

29

Development of an atmospheric aerosol model for studies of global budgets and effects of airborne particulate material  

SciTech Connect (OSTI)

A microphysics-removal atmospheric aerosol model (AAM) is developed for use in general circulation models (GCMs) to study global budgets and effects of particulate material. In this model the particle population is composed of a set of log-normal modes whose time evolution due to microphysical processes is described via prognostic equations for an appropriate number of moments of the particle-size distribution. Detailed parameterizations of particle coagulation, sedimentation, dry deposition, and wet removal are developed and implemented into the AAM. The AAM is incorporated into a GCM and is applied to two types of studies: (1) characteristics of the particle wet and dry removal processes, and (2) climatic impact of massive particulate injections following a global nuclear war, with emphasis on the sensitivity of the simulated effects to the inclusion of particle microphysics. Results are discussed.

Giorgi, F.

1986-01-01T23:59:59.000Z

30

Development of an atmospheric aerosol model for studies of global budgets and effects of airborne particulate material  

SciTech Connect (OSTI)

A microphysics-removal Atmospheric Aerosol Model (AAM) is developed for use in General Circulation Models (GCM) to study global budgets and effects of particulate material. In this model the particle population is assumed to be composed of a set of log-normal modes whose time evolution due to microphysical processes is described via prognostic equations for an appropriate number of moments of the particle size distribution. This newly devised technique, by making use of a small number of prognostic equations for the aerosol variables and utilizing optimized numerical procedures, renders the model computationally efficient, hence particularly suitable for use in complex 3D GCMs. Detailed parameterizations of particle coagulation, sedimentation, dry deposition, and wet removal are incorporated into the AAM.

Giorgi, F.

1986-01-01T23:59:59.000Z

31

Evaluation of PM10 and Total Suspended Particulate Sampler Performance Through Wind Tunnel Testing  

E-Print Network [OSTI]

.................................................... 86 APPENDIX F SHARP-EDGE ORIFICE METER CALIBRATION PROCEDURE ................................................................................ 89 APPENDIX G TEXAS A&M WIND TUNNEL OPERATION PROCEDURE ... 92 APPENDIX H MALVER MASTERSIZER 2000... Velocity Uniformity ?10% for 2, 8 and 24 km/h Measurement 1) Minimum of 12 test points 2) Monitoring techniques: precision? 2% ; accuracy ? 5% Aerosol Concentration Uniformity ?10% of the mean Measurement ? 5 evenly spaced isokinetic samplers...

Thelen, Mary Katherine

2011-10-21T23:59:59.000Z

32

E-Print Network 3.0 - ambient particulate matter Sample Search...  

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

ambient particulate matter Page: << < 1 2 3 4 5 > >> 1 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: Ambient Air Quality Standards...

33

E-Print Network 3.0 - air particulate analysis Sample Search...  

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

air particulate analysis Page: << < 1 2 3 4 5 > >> 1 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: and the composition of...

34

E-Print Network 3.0 - ambient particulate matterpm10 Sample Search...  

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

particulate matterpm10 Page: << < 1 2 3 4 5 > >> 1 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: Ambient Air Quality Standards...

35

E-Print Network 3.0 - ambient particulate matter-induced Sample...  

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

particulate matter-induced Page: << < 1 2 3 4 5 > >> 1 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: Ambient Air Quality Standards...

36

Interpolating Vancouver's Daily Ambient PM10 Field Li Sun James V. Zidek Nhu D. Le Haluk Ozkaynak  

E-Print Network [OSTI]

Interpolating Vancouver's Daily Ambient PM10 Field Li Sun James V. Zidek Nhu D. Le Haluk Ozkaynak the Center's primary funding. #12;Interpolating Vancouver's Daily Ambient PM10 Field Li Sun1 , James V Zidek1

Washington at Seattle, University of

37

Inhalable Particulate Network report: data summary (mass concentrations only). Volume 3. January 1983-December 1984  

SciTech Connect (OSTI)

The report is the third in a series of Inhalable Particulate (IP) Network reports covering 157 sites within the United States. PM10 (10-micron) size particulate mass data and data summaries for 88 active sampling sites are emphasized. Field operations and quality assurance procedures are referenced to preceding reports. Results of field operations and quality control audits are given.

Hinton, D.O.; Sune, J.M.; Suggs, J.C.; Barnard, W.F.

1986-04-01T23:59:59.000Z

38

E-Print Network 3.0 - air particulate matter Sample Search Results  

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

Collection: Engineering ; Renewable Energy 3 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: Statistical Issues in the...

39

E-Print Network 3.0 - air particulate exposure Sample Search...  

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

exposure Search Powered by Explorit Topic List Advanced Search Sample search results for: air particulate exposure Page: << < 1 2 3 4 5 > >> 1 Airborne Pollution In urban...

40

Development of methodology to correct sampling error associated with FRM PM10 samplers  

E-Print Network [OSTI]

Currently, a lack of accurate emission data exits for particulate matter (PM) in agricultural air quality studies (USDA-AAQTF, 2000). PM samplers, however, tend to over estimate the concentration of most agricultural dusts because of the interaction...

Chen, Jing

2009-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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

SEVERE PARTICULATE POLLUTION IN LANZHOU Peter C. Chu, Yuchun Chen*, Shihua Lu*, Zhenchao Li*, Yaqiong Lu**  

E-Print Network [OSTI]

SEVERE PARTICULATE POLLUTION IN LANZHOU CHINA Peter C. Chu, Yuchun Chen*, Shihua Lu*, Zhenchao Li and fall, but much worse in winter, reaching low to mid alert level of air pollution. Since 1999 increasing, and become major pollutants. The mean concentration of PM10 is 2.56 mg m-3 . Even in summer

Chu, Peter C.

42

Soil water and particle size distribution influence laboratory-generated PM10 Nicholaus M. Madden a,*, Randal J. Southard a  

E-Print Network [OSTI]

on gravimetric soil water content (GWC) and soil texture. A mechanical laboratory dust generator was used to testSoil water and particle size distribution influence laboratory-generated PM10 Nicholaus M. Madden a Soil particle size distribution Soil water content a b s t r a c t Management of soils to reduce

Ahmad, Sajjad

43

Origins of PM10 determined by the micro-proton induced X-ray emission spectra of single aerosol particles  

SciTech Connect (OSTI)

The micro-proton induced X-ray emission (micro-PIXE) spectrum of a single aerosol particle (SAP) was considered as its fingerprint for tracing its origin. A proton microprobe was used to extract fingerprints of SAPs. Environmental monitoring samples of PM10 were collected from a heavy industrial area of Shanghai and were analyzed by proton microprobe for finding their pollution sources. In order to find the sources of SAPs collected from environmental monitoring sites, a fingerprint database of SAPS collected from various pollution Sources was established. The origins of samples collected through environmental monitoring were identified by comparison of the micro-PIXE spectra of SAPs with those of SAPs in the fingerprint database using a pattern recognition technique. The results of this study show that most of the measured PM10 is derived from metallurgic industry, soil dust, coal combustion, automobile exhaust, and motorcycle exhaust. The study also shows that the proton microprobe is an ideal tool for the analysis of SAPs. The unidentified particles of PM10 are classified into seven classes by hierarchical cluster analysis based on the element peak intensity in the spectra.

Yue, W.S.; Li, X.L.; Wan, T.M.; Liu, J.F.; Zhang, G.L.; Li, Y. [Chinese Academy of Science, Shanghai (China). Shanghai Institute of Applied Physics

2006-06-15T23:59:59.000Z

44

E-Print Network 3.0 - air-borne dust conditions Sample Search...  

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

L., Guo, J., Dan, M., Zhang, W., Wang, Z., and Hao, Z.: The air-borne particulate pollution... Discussions Regional characteristics of spring Asian dust and its impact on...

45

Modeling for Airborne Contamination  

SciTech Connect (OSTI)

The objective of Modeling for Airborne Contamination (referred to from now on as ''this report'') is to provide a documented methodology, along with supporting information, for estimating the release, transport, and assessment of dose to workers from airborne radioactive contaminants within the Monitored Geologic Repository (MGR) subsurface during the pre-closure period. Specifically, this report provides engineers and scientists with methodologies for estimating how concentrations of contaminants might be distributed in the air and on the drift surfaces if released from waste packages inside the repository. This report also provides dose conversion factors for inhalation, air submersion, and ground exposure pathways used to derive doses to potentially exposed subsurface workers. The scope of this report is limited to radiological contaminants (particulate, volatile and gaseous) resulting from waste package leaks (if any) and surface contamination and their transport processes. Neutron activation of air, dust in the air and the rock walls of the drift during the preclosure time is not considered within the scope of this report. Any neutrons causing such activation are not themselves considered to be ''contaminants'' released from the waste package. This report: (1) Documents mathematical models and model parameters for evaluating airborne contaminant transport within the MGR subsurface; and (2) Provides tables of dose conversion factors for inhalation, air submersion, and ground exposure pathways for important radionuclides. The dose conversion factors for air submersion and ground exposure pathways are further limited to drift diameters of 7.62 m and 5.5 m, corresponding to the main and emplacement drifts, respectively. If the final repository design significantly deviates from these drift dimensions, the results in this report may require revision. The dose conversion factors are further derived by using concrete of sufficient thickness to simulate the drift walls. The gamma-ray scattering properties of concrete are sufficiently similar to those of the host rock and proposed insert material; use of concrete will have no significant impact on the conclusions. The information in this report is presented primarily for use in performing pre-closure radiological safety evaluations of radiological contaminants, but it may also be used to develop strategies for contaminant leak detection and monitoring in the MGR. Included in this report are the methods for determining the source terms and release fractions, and mathematical models and model parameters for contaminant transport and distribution within the repository. Various particle behavior mechanisms that affect the transport of contaminant are included. These particle behavior mechanisms include diffusion, settling, resuspension, agglomeration and other deposition mechanisms.

F.R. Faillace; Y. Yuan

2000-08-31T23:59:59.000Z

46

Active airborne contamination control using electrophoresis  

SciTech Connect (OSTI)

In spite of our best efforts, radioactive airborne contamination continues to be a formidable problem at many of the Department of Energy (DOE) weapons complex sites. For workers that must enter areas with high levels of airborne contamination, personnel protective equipment (PPE) can become highly restrictive, greatly diminishing productivity. Rather than require even more restrictive PPE for personnel in some situations, the Rocky Flats Plant (RFP) is actively researching and developing methods to aggressively combat airborne contamination hazards using electrophoretic technology. With appropriate equipment, airborne particulates can be effectively removed and collected for disposal in one simple process. The equipment needed to implement electrophoresis is relatively inexpensive, highly reliable, and very compact. Once airborne contamination levels are reduced, less PPE is required and a significant cost savings may be realized through decreased waste and maximized productivity. Preliminary ``cold,`` or non-radioactive, testing results at the RFP have shown the technology to be effective on a reasonable scale, with several potential benefits and an abundance of applications.

Veatch, B.D.

1994-06-01T23:59:59.000Z

47

Asthmatic responses to airborne acid aerosols  

SciTech Connect (OSTI)

Controlled exposure studies suggest that asthmatics may be more sensitive to the respiratory effects of acidic aerosols than individuals without asthma. This study investigates whether acidic aerosols and other air pollutants are associated with respiratory symptoms in free-living asthmatics. Daily concentrations of hydrogen ion (H+), nitric acid, fine particulates, sulfates and nitrates were obtained during an intensive air monitoring effort in Denver, Colorado, in the winter of 1987-88. A panel of 207 asthmatics recorded respiratory symptoms, frequency of medication use, and related information in daily diaries. We used a multiple regression time-series model to analyze which air pollutants, if any, were associated with health outcomes reported by study participants. Airborne H+ was found to be significantly associated with several indicators of asthma status, including moderate or severe cough and shortness of breath. Cough was also associated with fine particulates, and shortness of breath with sulfates. Incorporating the participants' time spent outside and exercise intensity into the daily measure of exposure strengthened the association between these pollutants and asthmatic symptoms. Nitric acid and nitrates were not significantly associated with any respiratory symptom analyzed. In this population of asthmatics, several outdoor air pollutants, particularly airborne acidity, were associated with daily respiratory symptoms.

Ostro, B.D.; Lipsett, M.J.; Wiener, M.B.; Selner, J.C. (California Department of Health Services, Berkeley (USA))

1991-06-01T23:59:59.000Z

48

Airborne Internet : market & opportunity  

E-Print Network [OSTI]

The purpose of this thesis to evaluate the opportunity for service provider entry and of the airborne internet, to analyze the disruptive impact technology used by AirCell and AeroSat has had on the development of an ...

Bhadouria, Anand

2007-01-01T23:59:59.000Z

49

LARGE-SCALE MEASUREMENT OF AIRBORNE PARTICULATE SULFUR  

E-Print Network [OSTI]

dispersive x-ray fluorescence (XRF) analysis. Concentrationsvalida- tion studies of XRF measurements have establishedelemental sulfur measurement by XRF can be closely related

Loo, B.W.

2010-01-01T23:59:59.000Z

50

Gas and Particulate Sampling of Airborne Polycyclic Aromatic Compounds  

SciTech Connect (OSTI)

The denuder surfaces of the gas and particle (GAP) sampler (developed at the Atmospheric Environment Service of Environment Canada) have been modified by coating with XAD-4 resin, using techniques developed at Lawrence Berkeley National Laboratory (LBNL) for the lower capacity integrated organic vapor/particle sampler (IOVPS). The resulting high capacity integrated organic gas and particle sampler (IOGAPS) has been operated in ambient air at 16.7 L min{sup -1} for a 24-hour period in Berkeley, California, USA. Simultaneous measurements were made at the same collection rate with a conventional sampler that used a filter followed by two sorbent beds. Gas and particle partition measurements were determined for 13 polycyclic aromatic hydrocarbons (PAH) ranging from 2-ring to 6-ring species. The IOGAPS indicated a higher particle fraction of these compounds than did the conventional sampler, suggesting that the conventional sampler suffered from 'blow-off' losses from the particles collected on the filter.

Lane, D.A.; Gundel, L.A.

1995-10-01T23:59:59.000Z

51

Savannah River Site Ingestion Pathway Methodology Manual for Airborne Radioactive Releases  

SciTech Connect (OSTI)

This manual documents a recommended methodology for determining the ingestion pathway consequences of hypothetical accidental airborne radiological releases from facilities at the Savannah River Site. Both particulate and tritiated radioactive contaminants are addressed. Other approaches should be applied for evaluation of routine releases.

Vincent, A.W. III

2001-01-03T23:59:59.000Z

52

Particulate Matter Science for Policy Makers: A NARSTO Assessment is a concise and  

E-Print Network [OSTI]

Shepherd #12;1 - 2 CHAPTER 1 atmospheric processes, and the resultant atmospheric pollution loadings. Exposure and Impacts: Understanding of cause-effect relationships among atmospheric pollutants, exposures discussion of the current understanding of airborne particulate matter (PM) among atmospheric scientists. Its

Weber, Rodney

53

Airborne wireless communication systems, airborne communication methods, and communication methods  

DOE Patents [OSTI]

An airborne wireless communication system includes circuitry configured to access information describing a configuration of a terrestrial wireless communication base station that has become disabled. The terrestrial base station is configured to implement wireless communication between wireless devices located within a geographical area and a network when the terrestrial base station is not disabled. The circuitry is further configured, based on the information, to configure the airborne station to have the configuration of the terrestrial base station. An airborne communication method includes answering a 911 call from a terrestrial cellular wireless phone using an airborne wireless communication system.

Deaton, Juan D. (Menan, ID); Schmitt, Michael J. (Idaho Falls, ID); Jones, Warren F. (Idaho Falls, ID)

2011-12-13T23:59:59.000Z

54

airborne sunphotometer airborne: Topics by E-print Network  

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

122 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

55

ADVANCED HYBRID PARTICULATE COLLECTOR  

SciTech Connect (OSTI)

A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed under funding from the US Department of Energy. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a manner that has not been done before. The AHPC concept consists of a combination of fabric filtration and electrostatic precipitation in the same housing, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emission with conventional ESPs, and it solves the problem of reentrainment and collection of dust in conventional baghouses. The AHPC is currently being tested at the 2.7-MW scale at the Big Stone power station.

Stanley Miller; Rich Gebert; William Swanson

1999-11-01T23:59:59.000Z

56

Airborne electromagnetic surveys as a reconnaissance technique...  

Open Energy Info (EERE)

Airborne electromagnetic surveys as a reconnaissance technique for geothermal exploration Abstract INPUT airborne electromagnetic (AEM) surveys were conducted during 1979 in five...

57

Electrically-Assisted Diesel Particulate Filter Regeneration...  

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

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

58

Advanced Particulate Filter Technologies for Direct Injection...  

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

Particulate Filter Technologies for Direct Injection Gasoline Engine Applications Advanced Particulate Filter Technologies for Direct Injection Gasoline Engine Applications...

59

Design characteristics for facilities which process hazardous particulate  

SciTech Connect (OSTI)

Los Alamos National Laboratory is establishing a research and processing capability for beryllium. The unique properties of beryllium, including light weight, rigidity, thermal conductivity, heat capacity, and nuclear properties make it critical to a number of US defense and aerospace programs. Concomitant with the unique engineering properties are the health hazards associated with processing beryllium in a particulate form and the potential for worker inhalation of aerosolized beryllium. Beryllium has the lowest airborne standard for worker protection compared to all other nonradioactive metals by more than an order of magnitude. This paper describes the design characteristics of the new beryllium facility at Los Alamos as they relate to protection of the workforce. Design characteristics to be reviewed include; facility layout, support systems to minimize aerosol exposure and spread, and detailed review of the ventilation system design for general room air cleanliness and extraction of particulate at the source.

Abeln, S.P.; Creek, K.; Salisbury, S.

1998-12-01T23:59:59.000Z

60

Airborne Wind Turbine  

SciTech Connect (OSTI)

Broad Funding Opportunity Announcement Project: Makani Power is developing an Airborne Wind Turbine (AWT) that eliminates 90% of the mass of a conventional wind turbine and accesses a stronger, more consistent wind at altitudes of near 1,000 feet. At these altitudes, 85% of the country can offer viable wind resources compared to only 15% accessible with current technology. Additionally, the Makani Power wing can be economically deployed in deep offshore waters, opening up a resource which is 4 times greater than the entire U.S. electrical generation capacity. Makani Power has demonstrated the core technology, including autonomous launch, land, and power generation with an 8 meter wingspan, 20 kW prototype. At commercial scale, Makani Power aims to develop a 600 kW, 28 meter wingspan product capable of delivering energy at an unsubsidized cost competitive with coal, the current benchmark for low-cost power.

None

2010-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Airborne agent concentration analysis  

DOE Patents [OSTI]

A method and system for inferring airborne contaminant concentrations in rooms without contaminant sensors, based on data collected by contaminant sensors in other rooms of a building, using known airflow interconnectivity data. The method solves a least squares problem that minimizes the difference between measured and predicted contaminant sensor concentrations with respect to an unknown contaminant release time. Solutions are constrained to providing non-negative initial contaminant concentrations in all rooms. The method can be used to identify a near-optimal distribution of sensors within the building, when then number of available sensors is less than the total number of rooms. This is achieved by having a system-sensor matrix that is non-singular, and by selecting that distribution which yields the lowest condition number of all the distributions considered. The method can predict one or more contaminant initial release points from the collected data.

Gelbard, Fred

2004-02-03T23:59:59.000Z

62

Regenerable particulate filter  

DOE Patents [OSTI]

A method of making a three-dimensional lattice structure, such as a filter used to remove particulates from a gas stream, where the physical lattice structure is designed utilizing software simulation from pre-defined mass transfer and flow characteristics and the designed lattice structure is fabricated using a free-form fabrication manufacturing technique, where the periodic lattice structure is comprised of individual geometric elements.

Stuecker, John N. (Albuquerque, NM); Cesarano, III, Joseph (Albuquerque, NM); Miller, James E. (Albuquerque, NM)

2009-05-05T23:59:59.000Z

63

ADVANCED HYBRID PARTICULATE COLLECTOR  

SciTech Connect (OSTI)

A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed under funding from the US Department of Energy. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in an entirely novel manner. The AHPC concept combines fabric filtration and electrostatic precipitation in the same housing, providing major synergism between the two methods, both in the particulate collection step and in transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emissions with conventional ESPs, and solves the problem of reentrainment and recollection of dust in conventional baghouses. Phase I of the development effort consisted of design, construction, and testing of a 5.7-m{sup 3}/min (200-acfm) working AHPC model. Results from both 8-hour parametric tests and 100-hour proof-of-concept tests with two different coals demonstrated excellent operability and greater than 99.99% fine-particle collection efficiency.

Stanley J. Miller; Grant L. Schelkoph; Grant E. Dunham

2000-12-01T23:59:59.000Z

64

Particle Number & Particulate Mass Emissions Measurements on...  

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

Number & Particulate Mass Emissions Measurements on a 'Euro VI' Heavy-duty Engine using the PMP Methodologies Particle Number & Particulate Mass Emissions Measurements on a 'Euro...

65

Particulate Emissions Control by Advanced Filtration Systems...  

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

Particulate Emissions Control by Advanced Filtration Systems or GDI Engines Particulate Emissions Control by Advanced Filtration Systems or GDI Engines 2013 DOE Hydrogen and Fuel...

66

Signal processing for airborne bistatic radar  

E-Print Network [OSTI]

The major problem encountered by an airborne bistatic radar is the suppression of bistatic clutter. Unlike clutter echoes for a sidelooking airborne monostatic radar, bistatic clutter echoes are range dependent. Using ...

Ong, Kian P

67

AIRBORNE RESEARCH AUSTRALIA Annual Report 2004  

E-Print Network [OSTI]

AIRBORNE RESEARCH AUSTRALIA Annual Report 2004 http://www.AirborneResearch.org.au #12;Annual Report 2004 Airborne Research Australia - MNRF The images on the front cover show: Top: Mosaic of aerial images of the `Hector' thunderstorm over the Tiwi Islands (to the north of Darwin/Australia) taken from

68

In-place HEPA (high efficiency, particulate air) filter testing at Hanford: Operating experiences, calibrations, and lessons learned  

SciTech Connect (OSTI)

High Efficiency, Particulate Air (HEPA) Filters provide a minimum of 99.97% removal efficiency for particles greater than or equal to .3 microns in diameter. Each HEPA filter installation at Hanford is, at specified intervals, functionally tested for leaks. The test procedure involves a dioctylphthalate (DOP) smoke generator and a calibrated airborne particle detector. The DOP generator produces smoke of a known quantitative particle size distribution upstream of the filter. The airborne particle detector is first placed upstream, and then downstream of the filter to determine percent penetration. The smoke generator is characterized using a calibrated laser spectrometer, and the particle detector is calibrated using a calibrated picoammeter. 2 refs., 4 figs.

Flores, D.S.; Decelis, D.G.

1989-10-01T23:59:59.000Z

69

Electrically heated particulate filter restart strategy  

DOE Patents [OSTI]

A control system that controls regeneration of a particulate filter is provided. The system generally includes a propagation module that estimates a propagation status of combustion of particulate matter in the particulate filter. A regeneration module controls current to the particulate filter to re-initiate regeneration based on the propagation status.

Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

2011-07-12T23:59:59.000Z

70

Particulate emission abatement for Krakow boiler houses. Quarterly technical report, October 1, 1996--December 31, 1996  

SciTech Connect (OSTI)

This project involves the implementation of a new particulate control technology called a ``Core Separator`` for low emission sources (LES) in Krakow. With several hundred boiler sites in the city burning low grade coal, existing pollution control equipment consists primarily of low efficiency cyclones. Such equipment cannot meet the emission standards of most industrial nations. More importantly, these conditions have been the cause of low ambient air quality in Krakow from suspended particles. The Core Separator can be retrofitted onto these boiler houses to substantially reduce particulate emissions, particularly those consisting of the fraction classified as PM10. In this project, Core Separator technology will be demonstrated for boiler house applications in the Krakow region. Phase I entailed business planning and infrastructure studies to determine the market for this equipment. In the second phase, the technology is to be demonstrated in several boilers of different capacity and firing various grades of coal. Later, a joint venture company was to be established with capability of manufacturing and supplying this equipment in Krakow and throughout Poland.

Wysk, S.R.

1997-01-01T23:59:59.000Z

71

Electrical diesel particulate filter (DPF) regeneration  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine includes a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates from the exhaust. An electrical heater is disposed upstream of the DPF and selectively heats the exhaust to initiate combustion of the particulates within the exhaust as it passes therethrough. Heat generated by combustion of the particulates induces combustion of particulates within the DPF.

Gonze, Eugene V; Ament, Frank

2013-12-31T23:59:59.000Z

72

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

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

Particulate Filtration (DPF) Systems Development of Advanced Diesel Particulate Filtration (DPF) Systems (ANLCorningCaterpillar CRADA) Development of Advanced Particulate Filters...

73

Analysis and Prediction of Particulate Matter in Graz  

E-Print Network [OSTI]

mortality rate · heart-/lung diseases PM10 · dyspnea · allergic coryza · acute respiratory disease · COPD PM in Graz. · low wind velocities · low precipitation · many days with temperature inversion (i

Stadlober, Ernst

74

Accident Generated Particulate Materials and Their Characteristics -- A Review of Background Information  

SciTech Connect (OSTI)

Safety assessments and environmental impact statements for nuclear fuel cycle facilities require an estimate of the amount of radioactive particulate material initially airborne (source term) during accidents. Pacific Northwest Laboratory (PNL) has surveyed the literature, gathering information on the amount and size of these particles that has been developed from limited experimental work, measurements made from operational accidents, and known aerosol behavior. Information useful for calculating both liquid and powder source terms is compiled in this report. Potential aerosol generating events discussed are spills, resuspension, aerodynamic entrainment, explosions and pressurized releases, comminution, and airborne chemical reactions. A discussion of liquid behavior in sprays, sparging, evaporation, and condensation as applied to accident situations is also included.

Sutter, S. L.

1982-05-01T23:59:59.000Z

75

airborne aura big: Topics by E-print Network  

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

Computational Acoustics, Vol. 9, No. 3 (2001) 1215-1225 c IMACS AIRBORNE ACOUSTICS October 1999 Revised 16 April 2000 A recently developed theoretical model of the airborne...

76

airborne thermal magnetic: Topics by E-print Network  

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

Computational Acoustics, Vol. 9, No. 3 (2001) 1215-1225 c IMACS AIRBORNE ACOUSTICS October 1999 Revised 16 April 2000 A recently developed theoretical model of the airborne...

77

Durability of Diesel Particulate Filters - Bench Studies on Cordierite...  

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

& Publications Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization Development of Advanced Diesel Particulate Filtration (DPF) Systems fundamental...

78

Effects of Advanced Combustion Technologies on Particulate Matter...  

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

Effects of Advanced Combustion Technologies on Particulate Matter Emissions Characteristics Effects of Advanced Combustion Technologies on Particulate Matter Emissions...

79

Process for particulate removal from coal liquids  

DOE Patents [OSTI]

Suspended solid particulates are removed from liquefied coal products by first subjecting such products to hydroclone action for removal in the underflow of the larger size particulates, and then subjecting the overflow from said hydroclone action, comprising the residual finer particulates, to an electrostatic field in an electrofilter wherein such finer particulates are deposited in the bed of beads of dielectric material on said filter. The beads are periodically cleaned by backwashing to remove the accumulated solids.

Rappe, Gerald C. (Macungie, PA)

1983-01-01T23:59:59.000Z

80

Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure...  

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

Preserving Diesel Exhaust Ultrafine (Nano-) Particulate Structure in Genotoxicity Studies to Support Engineering Development of Emission Controls Preserving Diesel Exhaust...

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Geophex airborne unmanned survey system  

SciTech Connect (OSTI)

The purpose of this effort is to design, construct, and evaluate a portable, remotely-piloted, airborne, geophysical survey system. This nonintrusive system will provide {open_quotes}stand-off{close_quotes} capability to conduct surveys and detect buried objects, structures, and conditions of interest at hazardous locations. This system permits two operators to rapidly conduct geophysical characterization of hazardous environmental sites. During a survey, the operators remain remote from, but within visual distance, of, the site. The sensor system never contacts the Earth, but can be positioned near the ground so that weak anomalies can be detected.

Won, I.J.; Taylor, D.W.A.

1995-03-01T23:59:59.000Z

82

7, 1569315721, 2007 Particulate PAH  

E-Print Network [OSTI]

of sources and15 ages of particles are present. Among carbon monoxide, nitrogen oxides (NOx), and carbon dioxide, particulate PAHs are most strongly correlated with NOx. Mexico City's PAH-to-black carbon mass ratio of 0.01 is similar to that found on a freeway loop in the Los Angeles area and approximately 8

Boyer, Edmond

83

Geophex Airborne Unmanned Survey System  

SciTech Connect (OSTI)

Ground-based surveys place personnel at risk due to the proximity of buried unexploded ordnance (UXO) items or by exposure to radioactive materials and hazardous chemicals. The purpose of this effort is to design, construct, and evaluate a portable, remotely-piloted, airborne, geophysical survey system. This non-intrusive system will provide stand-off capability to conduct surveys and detect buried objects, structures, and conditions of interest at hazardous locations. During a survey, the operators remain remote from, but within visual distance of, the site. The sensor system never contacts the Earth, but can be positioned near the ground so that weak geophysical anomalies can be detected. The Geophex Airborne Unmanned Survey System (GAUSS) is designed to detect and locate small-scale anomalies at hazardous sites using magnetic and electromagnetic survey techniques. The system consists of a remotely-piloted, radio-controlled, model helicopter (RCH) with flight computer, light-weight geophysical sensors, an electronic positioning system, a data telemetry system, and a computer base-station. The report describes GAUSS and its test results.

Won, I.L.; Keiswetter, D.

1995-12-31T23:59:59.000Z

84

The Tropical Forest and Fire Emissions Experiment: overview and airborne fire emission factor measurements  

E-Print Network [OSTI]

methanol, ace- tone, acetonitrile, and hydrogen cyanide,ratios of many VOC to acetonitrile, which is thought to beMS species and PM 10 acetonitrile acetaldehyde acrylonitrile

2007-01-01T23:59:59.000Z

85

Timing and Scope of Emission Reductions for Airborn Particulate Matter: A Simplified Model  

E-Print Network [OSTI]

investments as applied to the sunk costs and sunk bene ts of environmental regulation. This work whether the sunk costs of policy a

Washington at Seattle, University of

86

Source apportionment of airborne particulate matter for the speciation trends network site in Cleveland, OH  

SciTech Connect (OSTI)

Aerosol composition data from the Speciation Trends Network (STN) site (East 14th Street) in Cleveland, OH, were analyzed by advanced receptor model methods for source apportionment as well as by the standard positive matrix factorization (PMF) using PMF2. These different models are used in combination to test model limitations. These data were 24-hr average mass concentrations and compositions obtained for samples taken every third day from 2001 to 2003. The Multilinear Engine (ME) was used to solve an expanded model to estimate the source profiles and source contributions and also to investigate the wind speed, wind direction, time-of-day, weekend/weekday, and seasonal effects. PMF2 was applied to the same dataset. Potential source contribution function (PSCF) and conditional probability function (CPF) analyses were used to locate the regional and local sources using the resolved source contributions and appropriate meteorological data. Very little difference was observed between the results of the expanded model and the PMF2 values for the profiles and source contribution time series. The identified sources were as ferrous smelter, secondary sulfate, secondary nitrate, soil/combustion mixture, steel mill, traffic, wood smoke, and coal burning. The CPF analysis was useful in helping to identify local sources, whereas the PSCF results were only useful for regional source areas. Both of these analyses were more useful than the wind directional factor derived from the expanded factor analysis. However, the expanded analysis provided direct information on seasonality and day-of-week behavior of the sources. 28 refs., 8 figs., 4 tabs.

Liming Zhou; Philip K. Hopke; Weixiang Zhao [Clarkson University, Potsdam, NY (United States). Center for Air Resources Engineering and Science

2009-03-15T23:59:59.000Z

87

Low-cost coarse airborne particulate matter sensing for indoor occupancy detection  

E-Print Network [OSTI]

the energy-efficient smart building, occupancy detection andare being added to smart buildings to ensure the quality ofvaluable information for smart buildings. An important next

Weekly, Kevin

2013-01-01T23:59:59.000Z

88

New Chemical Aerosol Characterization Methods- Examples Using Agricultural and Urban Airborne Particulate Matter  

E-Print Network [OSTI]

-resolved agricultural aerosols collected from a ground site at the nominally downwind and upwind edge of a feedlot in West Texas were reported. High volume cascade impactor samplers were used for the collection of the particles, and two major analytical methods were...

Zhou, Lijun

2010-10-12T23:59:59.000Z

89

Numerous studies have shown that airborne particulate matter (PM) is associated with  

E-Print Network [OSTI]

such as ozone (O3) [Health Effects Institute 2002; National Research Council (NRC) 2004]. Studies have

Dominici, Francesca

90

Airborne Particulate Matter in HVAC Systems and its Influence on Indoor Air Quality  

E-Print Network [OSTI]

], microorganisms [2], in the case of abnormal maintenance. Because there are all kinds of components in the duct systems, tapping the law of particle distribution in HVAC systems is not an easy work. Generally speaking, flow in the duct system... is turbulent except those in some kind of components like filters. Particle movement, especially particle deposition, is strongly related to organized structures in near-wall turbulence [3]. The mechanisms governing particle transport in HVAC systems...

Fu, Z.; Li, N.; Wang, H.

2006-01-01T23:59:59.000Z

91

Principles for Sampling Airborne Radioactivity from Stacks  

SciTech Connect (OSTI)

This book chapter describes the special processes involved in sampling the airborne effluents from nuclear faciities. The title of the book is Radioactive Air Sampling Methods. The abstract for this chapter was cleared as PNNL-SA-45941.

Glissmeyer, John A.

2010-10-18T23:59:59.000Z

92

Airborne Gamma-Spectrometry in Switzerland  

SciTech Connect (OSTI)

Airborne gamma-spectrometry is able to obtain fast radiological information over large areas. The airborne gamma-spectrometry unit deployed in Switzerland by the Swiss National Emergency Operations Centre (NEOC) consists of a Swiss army Super Puma helicopter equipped with four NaI-Detectors with a total volume of 17 liters, associated electronics and a real-time data evaluation and mapping unit developed by the Swiss Federal Institute of Technology (ETH) and the Paul Scherrer Institut (PSI). The operational readiness of the airborne gamma-spectrometry system is validated in annual exercises of one week duration. Data from 2005 and 2006 exercises are represented in maps of {sup 137}Cs activity concentration for two towns located in southern and western Switzerland. An indicator of man-made radioactivity (MMGC ratio) is demonstrated for an area with four different types of nuclear installations. The intercomparison between airborne gamma-spectrometry and ground measurements showed good agreement between both methods.

Butterweck, Gernot [Paul Scherrer Institut, 5232 Villigen PSI (Switzerland); Bucher, Benno [Swiss Federal Nuclear Safety Inspectorate, 5232 Villigen HSK (Switzerland); Rybach, Ladislaus [Swiss Federal Institute of Technology Zurich, Institute of Geophysics, 8093 Zurich (Switzerland)

2008-08-07T23:59:59.000Z

93

Chemistry of airborne particles from metallurgical processing  

E-Print Network [OSTI]

Airborne particles fall into one of three size ranges. The nucleation range consists of nanoparticles created from vapor atom collisions. The decisive parameter for particle size and composition is the supercooling of the ...

Jenkins, Neil Travis, 1973-

2003-01-01T23:59:59.000Z

94

Building Retrofits for Increased Protection Against Airborne  

E-Print Network [OSTI]

Building Retrofits for Increased Protection Against Airborne Chemical and Biological Releases of Standards and Technology William A. Jeffrey, Director Building Retrofits for Increased Protection Against Dols Heather Davis Priya Lavappa Amy Rushing Building and Fire Research Laboratory Prepared for: U

95

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

96

Diesel particulate filter with zoned resistive heater  

SciTech Connect (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

97

Methods of separating particulate residue streams  

DOE Patents [OSTI]

A particulate residue separator and a method for separating a particulate residue stream may include an air plenum borne by a harvesting device, and have a first, intake end and a second, exhaust end; first and second particulate residue air streams that are formed by the harvesting device and that travel, at least in part, along the air plenum and in a direction of the second, exhaust end; and a baffle assembly that is located in partially occluding relation relative to the air plenum and that substantially separates the first and second particulate residue air streams.

Hoskinson, Reed L. (Rigby, ID); Kenney, Kevin L. (Idaho Falls, ID); Wright, Christopher T. (Idaho Falls, ID); Hess, J. Richard (Idaho Falls, ID)

2011-04-05T23:59:59.000Z

98

Advanced Particulate Filter Technologies for Direct Injection...  

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

Public * Continuing efforts for further CO 2 and PN reduction create a challenging environment for vehicles equipped with DI gasoline engines * Gasoline particulate filters...

99

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

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

Diesel Particulate Filtration (DPF) Technology: Success stories at the High Temperature Materials Laboratory (HTML) User Program Dr. Amit Shyam, ORNL Sponsored by U.S. Department...

100

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

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

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

Note: This page contains sample records for the topic "airborne particulates pm10" 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

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...

102

Electrically heated particulate filter using catalyst striping  

SciTech Connect (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

103

Electrically heated particulate filter embedded heater design  

SciTech Connect (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

104

Particulate residue separators for harvesting devices  

SciTech Connect (OSTI)

A particulate residue separator and a method for separating a particulate residue stream may include a plenum borne by a harvesting device, and have a first, intake end and a second, exhaust end; first and second particulate residue air streams which are formed by the harvesting device and which travel, at least in part, along the plenum and in a direction of the second, exhaust end; and a baffle assembly which is located in partially occluding relation relative to the plenum, and which substantially separates the first and second particulate residue air streams.

Hoskinson, Reed L.; Kenney, Kevin L.; Wright, Christopher T.; Hess, John R.

2010-06-29T23:59:59.000Z

105

Combustor for fine particulate coal  

DOE Patents [OSTI]

A particulate coal combustor with two combustion chambers is provided. The first combustion chamber is toroidal; air and fuel are injected, mixed, circulated and partially combusted. The air to fuel ratio is controlled to avoid production of soot or nitrogen oxides. The mixture is then moved to a second combustion chamber by injection of additional air where combustion is completed and ash removed. Temperature in the second chamber is controlled by cooling and gas mixing. The clean stream of hot gas is then delivered to a prime mover. 4 figs.

Carlson, L.W.

1988-01-26T23:59:59.000Z

106

Combustor for fine particulate coal  

DOE Patents [OSTI]

A particulate coal combustor with two combustion chambers is provided. The first combustion chamber is toroidal; air and fuel are injected, mixed, circulated and partially combusted. The air to fuel ratio is controlled to avoid production of soot or nitrogen oxides. The mixture is then moved to a second combustion chamber by injection of additional air where combustion is completed and ash removed. Temperature in the second chamber is controlled by cooling and gas mixing. The clean stream of hot gas is then delivered to a prime mover. 4 figs.

Carlson, L.W.

1988-11-08T23:59:59.000Z

107

Combustor for fine particulate coal  

DOE Patents [OSTI]

A particulate coal combustor with two combustion chambers is provided. The first combustion chamber is toroidal; air and fuel are injected, mixed, circulated and partially combusted. The air to fuel ratio is controlled to avoid production of soot or nitrogen oxides. The mixture is then moved to a second combustion chamber by injection of additional air where combustion is completed and ash removed. Temperature in the second chamber is controlled by cooling and gas mixing. The clean stream of hot gas is then delivered to a prime mover.

Carlson, Larry W. (Oswego, IL)

1988-01-01T23:59:59.000Z

108

Edinburgh Research Explorer Pulmonary diesel particulate increases susceptibility to  

E-Print Network [OSTI]

Edinburgh Research Explorer Pulmonary diesel particulate increases susceptibility to myocardial, MR & Gray, GA 2014, 'Pulmonary diesel particulate increases susceptibility to myocardial ischemia. Pulmonary diesel particulate increases susceptibility to myocardial ischemia/reperfusion injury via

Millar, Andrew J.

109

Electrically heated particulate filter propagation support methods and systems  

DOE Patents [OSTI]

A control system that controls regeneration of a particulate filter is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate combustion of particulate matter in the particulate filter. A propagation module estimates a propagation status of the combustion of the particulate matter based on a combustion temperature. A temperature adjustment module controls the combustion temperature by selectively increasing a temperature of exhaust that passes through the particulate filter.

Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

2011-06-07T23:59:59.000Z

110

Advanced particulate matter control apparatus and methods  

DOE Patents [OSTI]

Apparatus and methods for collection and removal of particulate matter, including fine particulate matter, from a gas stream, comprising a unique combination of high collection efficiency and ultralow pressure drop across the filter. The apparatus and method utilize simultaneous electrostatic precipitation and membrane filtration of a particular pore size, wherein electrostatic collection and filtration occur on the same surface.

Miller, Stanley J. (Grand Forks, ND); Zhuang, Ye (Grand Forks, ND); Almlie, Jay C. (East Grand Forks, MN)

2012-01-10T23:59:59.000Z

111

Engineering approaches to address erros in measured and predicted particulate matter concentrations  

E-Print Network [OSTI]

to a nominal 10 and 2.5 micrometers (PM10 and PM2.5) respectively. The current Federal Reference Method PM10 and PM2.5 samplers exhibit oversampling errors when sampling dusts with particle size distributions similar to those of agricultural sources...

Wanjura, John David

2006-08-16T23:59:59.000Z

112

Measuring PM Distribution in a Catalyzed Particulate Filter using...  

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

PM Distribution in a Catalyzed Particulate Filter using a Terahertz Wave Scanner Measuring PM Distribution in a Catalyzed Particulate Filter using a Terahertz Wave Scanner...

113

Emissions and Durability of Underground Mining Diesel Particulate...  

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

and Durability of Underground Mining Diesel Particulate Filter Applications Emissions and Durability of Underground Mining Diesel Particulate Filter Applications Presentation given...

114

Reduction of Transient Particulate Matter Spikes with Decision...  

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

Transient Particulate Matter Spikes with Decision Tree Based Control Reduction of Transient Particulate Matter Spikes with Decision Tree Based Control Using a non-parametric...

115

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...

116

Feasibility of the detection of trace elements in particulate...  

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

of trace elements in particulate matter using online High-Resolution Aerosol Mass Spectrometry. Feasibility of the detection of trace elements in particulate matter using online...

117

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

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

Filters Development of Advanced Diesel Particulate Filtration (DPF) Systems Development of Advanced Diesel Particulate Filtration (DPF) Systems (ANLCorningCaterpillar CRADA)...

118

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

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

of Advanced Diesel Particulate Filtration (DPF) Systems (ANLCorningCaterpillar CRADA) Development of Advanced Diesel Particulate Filtration (DPF) Systems Development of...

119

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

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

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

120

Local Soot Loading Distribution in Cordierite Diesel Particulate...  

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

Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by Dynamic Neutron Radiography Local Soot Loading Distribution in Cordierite Diesel Particulate Filters by...

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Versatile Diesel Particulate Filter Cartridge Any Size, Any Shape...  

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

Versatile Diesel Particulate Filter Cartridge Any Size, Any Shape Versatile Diesel Particulate Filter Cartridge Any Size, Any Shape Presentation given at DEER 2006, August 20-24,...

122

Value Analysis of Alternative Diesel Particulate Filter (DPF...  

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

Value Analysis of Alternative Diesel Particulate Filter (DPF) Substrates for Future Diesel Aftertreatment Systems Value Analysis of Alternative Diesel Particulate Filter (DPF)...

123

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

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

Cordierite Diesel Particulate Filters for Catalyzed and Non-Catalyzed Applications New Cordierite Diesel Particulate Filters for Catalyzed and Non-Catalyzed Applications 2003 DEER...

124

CARB Verification of Catalyzed Diesel Particulate Filters for...  

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

CARB Verification of Catalyzed Diesel Particulate Filters for Emergency Generator Sets CARB Verification of Catalyzed Diesel Particulate Filters for Emergency Generator Sets 2005...

125

A New CFD Model for understanding and Managing Diesel Particulate...  

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

CFD Model for understanding and Managing Diesel Particulate Filter Regeneration A New CFD Model for understanding and Managing Diesel Particulate Filter Regeneration...

126

Requirements-Driven Diesel Catalyzed Particulate Trap Design...  

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

Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization Requirements-Driven Diesel Catalyzed Particulate Trap Design and Optimization 2005 Diesel Engine...

127

Single Wall Diesel Particulate Filter (DPF) Filtration Efficiency...  

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

Single Wall Diesel Particulate Filter (DPF) Filtration Efficiency Studies Using Laboratory Generated Particles. Single Wall Diesel Particulate Filter (DPF) Filtration Efficiency...

128

Characterization of Pre-Commercial Gasoline Engine Particulates...  

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

Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Characterization of Pre-Commercial Gasoline Engine Particulates Through Advanced Aerosol Methods...

129

Detailed Assessment of Particulate Characteristics from Low-Temperatur...  

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

Detailed Assessment of Particulate Characteristics from Low-Temperature Combustion Engines Detailed Assessment of Particulate Characteristics from Low-Temperature Combustion...

130

Vehicle Technologies Office Merit Review 2014: Particulate Emissions...  

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

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

131

Radiant zone heated particulate filter  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter including an upstream end for receiving exhaust gas and a downstream end. A radiant zoned heater includes N zones, where N is an integer greater than one, wherein each of the N zones includes M sub-zones, where M is an integer greater than or equal to one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones, restricts exhaust gas flow in a portion of the PM filter that corresponds to the selected one of the N zones, and deactivates non-selected ones of the N zones.

Gonze, Eugene V [Pinckney, MI

2011-12-27T23:59:59.000Z

132

Sandia Multispectral Airborne Lidar for UAV Deployment  

SciTech Connect (OSTI)

Sandia National Laboratories has initiated the development of an airborne system for W laser remote sensing measurements. System applications include the detection of effluents associated with the proliferation of weapons of mass destruction and the detection of biological weapon aerosols. This paper discusses the status of the conceptual design development and plans for both the airborne payload (pointing and tracking, laser transmitter, and telescope receiver) and the Altus unmanned aerospace vehicle platform. Hardware design constraints necessary to maintain system weight, power, and volume limitations of the flight platform are identified.

Daniels, J.W.; Hargis,Jr. P.J.; Henson, T.D.; Jordan, J.D.; Lang, A.R.; Schmitt, R.L.

1998-10-23T23:59:59.000Z

133

Assessing inhalation exposure from airborne soil contaminants  

SciTech Connect (OSTI)

A method of estimation of inhalation exposure to airborne soil contaminants is presented. this method is derived from studies of airborne soil particles with radioactive tags. The concentration of contaminants in air (g/m{sup 3}) can be derived from the product of M, the suspended respirable dust mass concentration (g/m{sup 3}), S, the concentration of contaminant in the soil (g/g), and E{sub f}, an enhancement factor. Typical measurement methods and values of M, and E{sub f} are given along with highlights of experiences with this method.

Shinn, J.H.

1998-04-01T23:59:59.000Z

134

Electrically heated particulate filter enhanced ignition strategy  

SciTech Connect (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 applied to at least one of the PF and the grid. A control module estimates a temperature of the grid and controls the engine to produce a desired exhaust product to increase the temperature of the grid.

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

2012-10-23T23:59:59.000Z

135

Development of a Low-Cost Particulate Matter Monitor  

E-Print Network [OSTI]

Forward-looking infrared (FLIR) images taken as a singleforward-looking infrared (FLIR) instrumentation. Particulate

White, Richard M.

2010-01-01T23:59:59.000Z

136

An improved visualization of diesel particulate filter/  

E-Print Network [OSTI]

The prevalence of diesel particulate filters (DPF) is increasing as emissions standards worldwide evolve to match current technologies. Since the first application of DPFs in the 1980's, PM trapping effectiveness has ...

Boehm, Kevin (Kevin W.)

2011-01-01T23:59:59.000Z

137

Investigation of Direct Injection Vehicle Particulate Matter...  

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

Emissions This study focuses primarily on particulate matter mass analysis of a gasoline direct injection engine in a test cell with a chassis dynamometer. p-10gibbs.pdf...

138

Desorption of hexachlorobiphenyl from selected particulate matter  

E-Print Network [OSTI]

DESORPTION OF HEXACHLOROBIPHENYL FROM SELECTED PARTICULATE MATTER A Thesis by REAGAN CARTWRIGHT RORS CHACH Submitted to the Office of Graduate Studies of Texas ARM University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE December 1989 Major Subject: Civil Engineering DESORPTION OF HEXACHLOROBIPHENYL FROM SELECTED PARTICULATE MATTER A Thesis by REAGAN C. RORSCHACH Approved as to style and content by: Robin L. Autenrieth (Chair of Committee...

Rorschach, Reagan Cartwright

1989-01-01T23:59:59.000Z

139

SOUTHERN FINE PARTICULATE MONITORING PROJECT  

SciTech Connect (OSTI)

This quarterly report presents results and analysis of continuous onsite ambient fine particulate data at the North Birmingham sampling site during the January-March, 2002 study period. The continuous data include PM{sub 2.5} mass concentrations measured by TEOM, particle sulfate using the R&P 8400S monitor, particle size distributions measured by SMPS and APS monitors, and PM{sub 2.5} light scattering extinction coefficient as measured by nephelometer. Some instrumental issues were noted with the upgrade of the APS model 3320 are described in the report, as well as preliminary performance indications for the upgraded instrument. During the quarter preliminary data analysis and modeling studies were conducted to test the potential of the North Birmingham site data for source attribution analyses. Our initial assessment has continued to be optimistic in this regard due to the location of the site relative to several important classes of local and midrange emission sources. We anticipate that these analyses will provide good separations of the effects of major source classes and spatial source clusters, and will provide useful information relevant to PM{sub 2.5} implementation strategies.

Unknown

2002-04-01T23:59:59.000Z

140

Alternate particle removal technologies for the Airborne Activity Confinement System at the Savannah River Site  

SciTech Connect (OSTI)

This report presents a review of the filtration technologies available for the removal of particulate material from a gas stream. It was undertaken to identify alternate filtration technologies that may be employed in the Airborne Activity Confinement System (AACS) at the Savannah River Plant. This report is organized into six sections: (1) a discussion of the aerosol source term and its definition, (2) a short discussion of particle and gaseous contaminant removal mechanisms, (3) a brief overview of particle removal technologies, (4) a discussion of the existing AACS and its potential shortcomings, (5) an enumeration of issues to be addressed in upgrading the AACS, and, (6) a detailed discussion of the identified technologies. The purpose of this report is to identity available options to the existing particle removal system. This system is in continuous operation during routine operation of the reactor. As will be seen, there are a number of options and the selection of any technology or combination of technologies will depend on the design aerosol source term (yet to be appropriately defined) as well as the flow requirements and configuration. This report does not select a specific technology. It focuses on particulate removal and qualitatively on the removal of radio-iodine and mist elimination. Candidate technologies have been selected from industrial and nuclear gas cleaning applications.

Brockmann, J.E.; Adkins, C.L.J.; Gelbard, F. [Sandia National Labs., Albuquerque, NM (United States)

1991-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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.


141

Airborne dust in Saudi Arabia : source areas, entrainment, simulation and composition.  

E-Print Network [OSTI]

??Spatial and temporal characteristics of dust storm activity in Saudi Arabia has been established using coarse-particle (PM10) dust concentrations recorded by the KACST monitoring network (more)

Alharbi, Badr Hadhidh A

2009-01-01T23:59:59.000Z

142

E-Print Network 3.0 - airborne flour dust Sample Search Results  

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

Collection: Computer Technologies and Information Sciences 12 Correlating Bioaerosol Load with PM2.5 and PM10 Concentrations Jordan Peccia1, Ann M. Dillner1,2, Justin Boreson1...

143

Advanced Hybrid Particulate Collector Project Management Plan  

SciTech Connect (OSTI)

As the consumption of energy increases, its impact on ambient air quality has become a significant concern. Recent studies indicate that fine particles from coal combustion cause health problems as well as atmospheric visibility impairment. These problems are further compounded by the concentration of hazardous trace elements such as mercury, cadmium, selenium, and arsenic in fine particles. Therefore, a current need exists to develop superior, but economical, methods to control emissions of fine particles. Since most of the toxic metals present in coal will be in particulate form, a high level of fine- particle collection appears to be the best method of overall air toxics control. However, over 50% of mercury and a portion of selenium emissions are in vapor form and cannot be collected in particulate control devices. Therefore, this project will focus on developing technology not only to provide ultrahigh collection efficiency of particulate air toxic emissions, but also to capture vapor- phase trace metals such as mercury and selenium. Currently, the primary state-of-the-art technologies for particulate control are fabric filters (baghouses) and electrostatic precipitators (ESPs). However, they both have limitations that prevent them from achieving ultrahigh collection of fine particulate matter and vapor-phase trace metals. The objective of this project is to develop a highly reliable advanced hybrid particulate collector (AHPC) that can provide > 99.99 % particulate collection efficiency for all particle sizes between 0.01 and 50 14m, is applicable for use with all U.S. coals, and is cost-0443competitive with existing technologies. Phase I of the project is organized into three tasks: Task I - Project Management, Reporting, and Subcontract Consulting Task 2 - Modeling, Design, and Construction of 200-acfm AHPC Model Task 3 - Experimental Testing and Subcontract Consulting

Miller, S.J.

1995-11-01T23:59:59.000Z

144

Analyzing Options for Airborne Emergency Wireless Communications  

SciTech Connect (OSTI)

In the event of large-scale natural or manmade catastrophic events, access to reliable and enduring commercial communication systems is critical. Hurricane Katrina provided a recent example of the need to ensure communications during a national emergency. To ensure that communication demands are met during these critical times, Idaho National Laboratory (INL) under the guidance of United States Strategic Command has studied infrastructure issues, concerns, and vulnerabilities associated with an airborne wireless communications capability. Such a capability could provide emergency wireless communications until public/commercial nodes can be systematically restored. This report focuses on the airborne cellular restoration concept; analyzing basic infrastructure requirements; identifying related infrastructure issues, concerns, and vulnerabilities and offers recommended solutions.

Michael Schmitt; Juan Deaton; Curt Papke; Shane Cherry

2008-03-01T23:59:59.000Z

145

Method for dispersing catalyst onto particulate material  

DOE Patents [OSTI]

A method for dispersing finely divided catalyst precursors onto the surface of coal or other particulate material includes the steps of forming a wet paste mixture of the particulate material and a liquid solution containing a dissolved transition metal salt, for instance a solution of ferric nitrate. The wet paste mixture is in a state of incipient wetness with all of this solution adsorbed onto the surfaces of the particulate material without the presence of free moisture. On adding a precipitating agent such as ammonia, a catalyst precursor such as hydrated iron oxide is deposited on the surfaces of the coal. The catalyst is activated by converting it to the sulfide form for the hydrogenation or direct liquefaction of the coal.

Utz, Bruce R. (Pittsburgh, PA); Cugini, Anthony V. (Pittsburgh, PA)

1992-01-01T23:59:59.000Z

146

Evaluation of the TEOM method for the measurement of particulate matter for Texas cattle feedlots  

E-Print Network [OSTI]

The Tapered Element Oscillating Microbalance (TEOM) sampler is an EPA approved Federal Equivalent Method Sampler for measuring PM10 concentrations. The Center for Agricultural Air Quality Engineering and Science (CAAQES) owns two Rupprecht...

Skloss, Stewart James

2009-05-15T23:59:59.000Z

147

airborne oceanographic lidar: Topics by E-print Network  

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

Channels Landslides Spatial Cognition The emergence of airborne lidar data cognition and perception, we also explore the notion that the ongoing use of lidar enables...

148

airborne aerosol prediction: Topics by E-print Network  

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

modeling, radar, remote sensing, simulator, training. Dr. George; L. Bair; Camber Corporation 44 AIRBORNE MEASUREMENTS OF OZONE AND REACTIVE NITROGEN COMPOUNDS IN TAMPA,...

149

airborne em system: Topics by E-print Network  

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

191 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

150

airborne radioactivity levels: Topics by E-print Network  

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

Bronchial model; Radiation 1. Introduction Inhalation of airborne short-lived radon progeny in the indoor and outdoor environment yields the greatest amount of natural...

151

airborne releases estimativa: Topics by E-print Network  

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

172 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

152

airborne radioactive materials: Topics by E-print Network  

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

Bronchial model; Radiation 1. Introduction Inhalation of airborne short-lived radon progeny in the indoor and outdoor environment yields the greatest amount of natural...

153

airborne acidity estimates: Topics by E-print Network  

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

169 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

154

airborne allergens assessing: Topics by E-print Network  

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

183 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

155

airborne sunphotometer measurements: Topics by E-print Network  

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

66 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

156

airborne penicillium cfu: Topics by E-print Network  

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

151 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

157

airborne stachybotrys chartarum: Topics by E-print Network  

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

125 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

158

airborne separation assistance: Topics by E-print Network  

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

15 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

159

airborne particles: Topics by E-print Network  

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

153 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

160

airborne gammaspectrometric systems: Topics by E-print Network  

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

166 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

Note: This page contains sample records for the topic "airborne particulates pm10" 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

airborne laser swath: Topics by E-print Network  

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

191 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

162

airborne radioactive contamination: Topics by E-print Network  

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

Bronchial model; Radiation 1. Introduction Inhalation of airborne short-lived radon progeny in the indoor and outdoor environment yields the greatest amount of natural...

163

airborne aspergillus fumigatus: Topics by E-print Network  

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

176 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

164

airborne nanoparticle exposures: Topics by E-print Network  

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

182 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

165

airborne compositae dermatitis: Topics by E-print Network  

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

150 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

166

airborne resistivity techniques: Topics by E-print Network  

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

152 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

167

airborne radiometric measurements: Topics by E-print Network  

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

105 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

168

airborne radionuclide monitoring: Topics by E-print Network  

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

188 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

169

airborne laser altimeter: Topics by E-print Network  

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

211 Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with Biology and Medicine Websites Summary:...

170

ccpi-airborne_r2 | netl.doe.gov  

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

2 Industrial Carbon Capture and Storage Clean Coal Power Initiative Power Plant Improvement Initiative Clean Coal Technology Demonstration Program FutureGen AIRBORNE PROCESS(tm)...

171

airborne science program: Topics by E-print Network  

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

A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE August 1982 Major Subject: Nuclear Engineering AIRBORNE RADIOACTIVE MATERIAL...

172

Modeling of Particulate Behavior in Pinhole Breaches  

SciTech Connect (OSTI)

A model is presented for calculating depressurization time for and particulate release from used nuclear fuel dry storage containers that have developed a pinhole breach. Particular attention is given to particulate deposition and transmission within the breach pathway. The model is modular in nature and is developed in a way that allows for more advanced treatments of internal temperature, internal component geometry, or aerosol flow to be readily incorporated. The model can be treated as a basis for addressing concerns associated with monitoring and verification efforts during long-term dry cask storage

Casella, Andrew M.; Loyalka, Sudarshan K.; Hanson, Brady D.

2014-04-01T23:59:59.000Z

173

Method of dispersing particulate aerosol tracer  

DOE Patents [OSTI]

A particulate aerosol tracer which comprises a particulate carrier of sheet silicate composition having a particle size up to one micron, and a cationic dopant chemically absorbed in solid solution in the carrier. The carrier is preferably selected from the group consisting of natural mineral clays such as bentonite, and the dopant is selected from the group consisting of rare earth elements and transition elements. The tracers are dispersed by forming an aqueous salt solution with the dopant present as cations, dispersing the carriers in the solution, and then atomizing the solution under heat sufficient to superheat the solution droplets at a level sufficient to prevent reagglomeration of the carrier particles.

O'Holleran, Thomas P. (Belleville, MI)

1988-01-01T23:59:59.000Z

174

Particulate hot gas stream cleanup technical issues  

SciTech Connect (OSTI)

The analyses of hot gas stream cleanup particulate samples and descriptions of filter performance studied under this contract were designed to address problems with filter operation that have been linked to characteristics of the collected particulate matter. One objective of this work was to generate an interactive, computerized data bank of the key physical and chemical characteristics of ash and char collected from operating advanced particle filters and to relate these characteristics to the operation and performance of these filters. The interactive data bank summarizes analyses of over 160 ash and char samples from fifteen pressurized fluidized-bed combustion and gasification facilities utilizing high-temperature, high pressure barrier filters.

Pontius, D.H.; Snyder, T.R.

1999-09-30T23:59:59.000Z

175

A science based emission factor for particulate matter emitted from cotton harvesting  

E-Print Network [OSTI]

DEVELOPED FOR USE IN AERMOD FROM 3D SONIC ANEMOMETER MEASUREMENTS ....................................................................... 156 APPENDIX C TSP AND PM10 CONCENTRATION MEASUREMENTS TAKEN DURING THE SAMPLING EVENTS DURING 2006... upwind and downwind of the harvesting operation. 5 2. The vertical concentration profile of the dust plume downwind of the operation was quantified using a series of three mobile towers with PM 10 samplers and anemometers mounted at several...

Wanjura, John David

2009-05-15T23:59:59.000Z

176

Durability of Diesel Engine Particulate Filters CRADA No. ORNL...  

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

Durability of Diesel Engine Particulate Filters CRADA No. ORNL-04-0692 with Cummins Inc. Durability of Diesel Engine Particulate Filters CRADA No. ORNL-04-0692 with Cummins Inc....

177

In Vitro Genotoxicity of Particulate and Semi-Volatile Organic...  

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

Particulate and Semi-Volatile Organic Compound Exhaust Materails from a Set of Gasoline and a Set of Diesel Engine Vehicles Operated at 30F In Vitro Genotoxicity of Particulate...

178

Where do particulate toxins reside? An improved paradigm for the structure and dynamics of the urban mid-Atlantic aerosol  

SciTech Connect (OSTI)

Discussions of excess mortality and morbidity from exposure to urban aerosol particles typically invoke the now 20-year-old trimodal aerosol paradigm proposed by Whitby to explain the structure and behavior of ambient aerosol volume and its major constituent, sulfate. However, this paradigm largely ignores the primary high-temperature combustion (HTC) components of the urban aerosol, which contribute minor amounts of the aerosol mass, but carry the bulk of the particulate toxins and numbers of aerosol particles. Studies encompassing the analyses of >100 size distributions of important intrinsic tracers of primary particles from HTC sources collected over the past decade in various environments show that urban aerosol contains a complex mixture of physically-discrete fresh and aged, primary particle populations from a variety of sources. Furthermore, whereas the behavior of fine-particulate aerosol mass and sulfate was described in terms of coagulation and accumulation aerosol scavenging of new secondary sulfate nuclei, studies reviewed herein suggest that the behavior of primary aerosol is mediated more by hygroscopic growth and cloud processing, accompanied by oxidation of SO{sub 2} on wet particles and droplets. The authors conclude that the distribution of airborne particulate toxins and their atmospheric behavior is far more complex than commonly conceptualized on the basis of the classical trimodal model, and they develop an extended paradigm in which the focus is on the primary accumulation aerosol.

Ondov, J.M. [Univ. of Maryland, College Park, MD (United States). Dept. of Chemistry and Biochemistry] [Univ. of Maryland, College Park, MD (United States). Dept. of Chemistry and Biochemistry; Wexler, A.S. [Univ. of Delaware, Newark, DE (United States). Dept. of Mechanical Engineering] [Univ. of Delaware, Newark, DE (United States). Dept. of Mechanical Engineering

1998-09-01T23:59:59.000Z

179

airborne experimental test-bed: Topics by E-print Network  

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

Acoustics, Vol. 9, No. 3 (2001) 1215-1225 c IMACS AIRBORNE ACOUSTICS October 1999 Revised 16 April 2000 A recently developed theoretical model of the airborne acoustic...

180

E-Print Network 3.0 - airborne biomass sensing Sample Search...  

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

biomass sensing Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne biomass sensing Page: << < 1 2 3 4 5 > >> 1 We analysed airborne laser...

Note: This page contains sample records for the topic "airborne particulates pm10" 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

E-Print Network 3.0 - airborne occupational exposure Sample Search...  

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

Airborne Emissions . . . 8... -6 9-3. Normalized Impacts from One Year of Exposure to Fugitive Airborne Emissions . . ... Source: Yucca Mountain Project, US EPA Collection:...

182

E-Print Network 3.0 - airborne mixtures part Sample Search Results  

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

GLAS Airborne lidar Biomass Height The use of lidar remote sensing for mapping the spatial distribution... and spatially coincident discrete-return airborne lidar data over...

183

E-Print Network 3.0 - airborne sun photometer Sample Search Results  

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

sun photometer Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne sun photometer Page: << < 1 2 3 4 5 > >> 1 BNL -63020 AN AIRBORNE...

184

E-Print Network 3.0 - airborne infectious diseases Sample Search...  

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

Physics Investigation of airborne foot-and-mouth disease virus transmission during low-wind conditions... ) provides a more de- tailed analysis of the airborne disease...

185

E-Print Network 3.0 - airborne microbial communities Sample Search...  

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

search results for: airborne microbial communities Page: << < 1 2 3 4 5 > >> 1 Biodiversity and biogeography of the atmosphere Summary: -temporal variability of airborne...

186

E-Print Network 3.0 - airborne intelligence surveillance Sample...  

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

for: airborne intelligence surveillance Page: << < 1 2 3 4 5 > >> 1 The Effects of Passive Coordination on Distributed Separation Assurance Summary: . For the airborne case,...

187

Electrically heated particulate filter preparation methods and systems  

SciTech Connect (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

188

Microscopy investigations of ash and particulate matter accumulation in diesel particulate filter surface pores  

E-Print Network [OSTI]

There has been increased focus on the environmental impact of automobile emissions in recent years. These environmental concerns have resulted in the creation of more stringent particulate matter emissions regulations in ...

Beauboeuf, Daniel P

2010-01-01T23:59:59.000Z

189

ORIGINAL ARTICLE Fine Particulate Matter and Mortality  

E-Print Network [OSTI]

landmark cohort studies for estimating the chronic effects of fine particulate air pollution (PM2 that the Medicare files can be used to construct on-going cohorts for tracking the risk of air pollution over time- tory diseases, and also with increased mortality.1­6 Chronic effects of air pollution potentially

Dominici, Francesca

190

Adaptive Restoration of Airborne Daedalus AADS1268 ATM Thermal Data  

SciTech Connect (OSTI)

To incorporate the georegistration and restoration processes into airborne data processing in support of U.S. Department of Energy's nuclear emergency response task, we developed an adaptive restoration filter for airborne Daedalus AADS1268 ATM thermal data based on the Wiener filtering theory. Preliminary assessment shows that this filter enhances the detectability of small weak thermal anomalies in AADS1268 thermal images.

D. Yuan; E. Doak; P. Guss; A. Will

2002-01-01T23:59:59.000Z

191

Robust Multi-loop Airborne SLAM in Unknown Wind Environments  

E-Print Network [OSTI]

Robust Multi-loop Airborne SLAM in Unknown Wind Environments Jonghyuk Kim Department of Engineering for Autonomous Systems University of Sydney, Australia Email: salah@acfr.usyd.edu.au Abstract-- This paper presents a robust multi-loop airborne SLAM structure which also augments wind information. The air velocity

Kim, Jonghyuk "Jon"

192

Face crack reduction strategy for particulate filters  

DOE Patents [OSTI]

A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and at least one portion. A control module initiates combustion of PM in the PM filter using a heater and selectively adjusts oxygen levels of the exhaust gas to adjust a temperature of combustion adjacent to the at least one portion of the PM filter. A method comprises providing a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and at least one portion; initiating combustion of PM in the PM filter using a heater; selectively adjusting oxygen levels of the exhaust gas to adjust a temperature of combustion adjacent to the at least one portion of the PM filter.

Gonze, Eugene V [Pinckney, MI

2012-01-31T23:59:59.000Z

193

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

194

Development of a Low-Cost Particulate Matter Monitor  

SciTech Connect (OSTI)

We describe a small, inexpensive portable monitor for airborne particulates, composed of the following elements: a. A simple size-selective inlet (vertical elutriator) that permits only particles below a pre-set diameter to pass and enter the measurement section; b. A measurement section in which passing particles are deposited thermophoretically on a micro-fabricated resonant piezoelectric mass sensor; c. An optical characterization module co-located with the mass sensor module that directs infrared and ultraviolet beams through the deposit. The emergent optical beams are detected by a photodiode. The optical absorption of the deposit can be measured in order to characterize the deposit, and determine how much is due to diesel exhaust and/or environmental tobacco smoke; and d. A small pump that moves air through the device, which may also be operated in a passive mode. The component modules were designed by the project team, and fabricated at UCB andLBNL. Testing and validation were performed in a room-sized environmental chamber at LBNL in to which was added either environmental tobacco smoke (ETS, produced by a cigarette smoking machine) or diesel exhaust (from a conventional diesel engine). Two pilot field tests in a dwelling compared the monitor with existing aerosol instruments during exposure to infiltrated ambient air to which cigarette smoke, diesel exhaust, wood smoke and cooking fumes were added. The limit of detection (LOD) derived from statistical analysis of field data is 18 mu g m-3, at the 99percent confidence level. The monitor weighs less than 120 g and has a volume of roughly 250 cm3. Power consumption is approximately 100 milliwatts. During this study, the optical component of the device was not fully implemented and has been left for future efforts. Suggested improvements in the current prototype include use of integrated thermal correction, reconfiguration of the resonator for increased particle collection area, increased thermophoretic collection efficiency using an increased temperature gradient, and shielding the resonator electronics from deposition of ultrafine particles.

White, Richard M.; Apte, Michael G.; Gundel, Lara A.; Black, Justin

2008-08-01T23:59:59.000Z

195

Airborne chemical baseline evaluation of the 222-S laboratory complex  

SciTech Connect (OSTI)

The 222-S Laboratory complex stores and uses over 400 chemicals. Many of these chemicals are used in laboratory analysis and some are used for maintenance activities. The majority of laboratory analysis chemicals are only used inside of fume hoods or glove boxes to control both chemical and radionuclide airborne concentrations. This evaluation was designed to determine the potential for laboratory analysis chemicals at the 222-S Laboratory complex to cause elevated airborne chemical concentrations under normal conditions. This was done to identify conditions and activities that should be subject to airborne chemical monitoring in accordance with the Westinghouse Hanford Company Chemical Hygiene Plan.

Bartley, P., Fluor Daniel Hanford

1997-02-12T23:59:59.000Z

196

Assessment of Contribution of Contemporary Carbon Sources to Size-Fractionated Particulate Matter and Time-Resolved Bulk Particulate Matter Using the Measurement of Radiocarbon  

SciTech Connect (OSTI)

This study was motivated by a desire to improve understanding of the sources contributing to the carbon that is an important component of airborne particulate matter (PM). The ultimate goal of this project was to lay a ground work for future tools that might be easily implemented with archived or routinely collected samples. A key feature of this study was application of radiocarbon measurement that can be interpreted to indicate the relative contributions from fossil and non-fossil carbon sources of atmospheric PM. Size-resolved PM and time-resolved PM{sub 10} collected from a site in Sacramento, CA in November 2007 (Phase I) and March 2008 (Phase II) were analyzed for radiocarbon and source markers such as levoglucosan, cholesterol, and elemental carbon. Radiocarbon data indicates that the contributions of non-fossil carbon sources were much greater than that from fossil carbon sources in all samples. Radiocarbon and source marker measurements confirm that a greater contribution of non-fossil carbon sources in Phase I samples was highly likely due to residential wood combustion. The present study proves that measurement of radiocarbon and source markers can be readily applied to archived or routinely collected samples for better characterization of PM sources. More accurate source apportionment will support ARB in developing more efficient control strategies.

Hwang, H M; Young, T M; Buchholz, B A

2009-04-16T23:59:59.000Z

197

MERCURY CONTROL WITH ADVANCED HYBRID PARTICULATE COLLECTOR  

SciTech Connect (OSTI)

This project was awarded under U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) Program Solicitation DE-PS26-00NT40769 and specifically addressed Technical Topical Area 4-Testing Novel and Less Mature Control Technologies on Actual Flue Gas at the Pilot Scale. The project team included the Energy & Environmental Research Center (EERC) as the main contractor; W.L. Gore & Associates, Inc., as a technical and financial partner; and the Big Stone Power Plant operated by Otter Tail Power Company, host for the field-testing portion of the research. Since 1995, DOE has supported development of a new concept in particulate control called the advanced hybrid particulate collector (AHPC). The AHPC has been licensed to W.L. Gore & Associates, Inc., and has been marketed as the Advanced Hybrid{trademark} filter by Gore. The Advanced Hybrid{trademark} filter combines the best features of electrostatic precipitators (ESPs) and baghouses in a unique configuration, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The Advanced Hybrid{trademark} filter provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emissions with conventional ESPs, and it solves the problem of reentrainment and re-collection of dust in conventional baghouses. The Advanced Hybrid{trademark} filter also appears to have unique advantages for mercury control over baghouses or ESPs as an excellent gas--solid contactor. The objective of the project was to demonstrate 90% total mercury control in the Advanced Hybrid{trademark} filter at a lower cost than current mercury control estimates. The approach included bench-scale batch tests, larger-scale pilot testing with real flue gas on a coal-fired combustion system, and field demonstration at the 2.5-MW (9000-acfm) scale at a utility power plant to prove scale-up and demonstrate longer-term mercury control. An additional task was included in this project to evaluate mercury oxidation upstream of a dry scrubber by using mercury oxidants. This project demonstrated at the pilot-scale level a technology that provides a cost-effective technique to control mercury and, at the same time, greatly enhances fine particulate collection efficiency. The technology can be used to retrofit systems currently employing inefficient ESP technology as well as for new construction, thereby providing a solution for improved fine particulate control combined with effective mercury control for a large segment of the U.S. utility industry as well as other industries.

Ye Zhuang; Stanley J. Miller

2005-05-01T23:59:59.000Z

198

Human Occupancy as a Source of Indoor Airborne Bacteria  

E-Print Network [OSTI]

Exposure to specific airborne bacteria indoors is linked to infectious and noninfectious adverse health outcomes. However, the sources and origins of bacteria suspended in indoor air are not well understood. This study ...

Hospodsky, Denina

199

affects on the transport of airborne emissions. This information...  

National Nuclear Security Administration (NNSA)

due to airborne material. Detailed analyses (CRWMS M&O 1995a, 1997b) of the local wind characteristics in the study area led to the choice of Site 1 as the meteorological...

200

Shielded regeneration heating element for a particulate filter  

DOE Patents [OSTI]

An exhaust system includes a particulate filter (PF) that is disposed downstream from an engine. The PF filters particulates within an exhaust from the engine. A heating element heats particulate matter in the PF. A catalyst substrate or a flow converter is disposed upstream from said heating element. The catalyst substrate oxidizes the exhaust prior to reception by the heating element. The flow converter converts turbulent exhaust flow to laminar exhaust flow prior to reception by the heating element.

Gonze, Eugene V [Pinckney, MI; Ament, Frank [Troy, MI

2011-01-04T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Diesel particulate filter regeneration via resistive surface heating  

SciTech Connect (OSTI)

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

Gonze, Eugene V; Ament, Frank

2013-10-08T23:59:59.000Z

202

Atmospheric particulates in a semi-rural environment  

E-Print Network [OSTI]

OF TABLES LIST OF FIGURES CHAPTER Page Vli1 iX I INTRODUCTION Air pollution ? general Air pollution ? historical perspective Scope of research Importance of atmospheric particulates Particulates and climatology Particulates and human health 14... of the best definitions of an air pollutant is given by Huschke (1968), "with respect to the atmosphere, any substance within it that is foreign to the 'natural' atmosphere or that exceeds its 'natural' concentration in the atmosphere. The universal...

Klein, Thomas Kelly

1974-01-01T23:59:59.000Z

203

Method of forming particulate materials for thin-film solar cells  

DOE Patents [OSTI]

A method for preparing particulate materials useful in fabricating thin-film solar cells is disclosed. Particulate materials is prepared by the method include for example materials comprising copper and indium and/or gallium in the form of single-phase, mixed-metal oxide particulates; multi-phase, mixed-metal particulates comprising a metal oxide; and multinary metal particulates.

Eberspacher, Chris; Pauls, Karen Lea

2004-11-23T23:59:59.000Z

204

Airborne asbestos fiber evaluation: a comparison of three methods  

E-Print Network [OSTI]

Najor Subject: Industrial Hygiene AIRBORNE ASBESTOS FIBER EVALUATION-A COMPARISON OF THRFE METHODS A Thesis by EMIL STUDI NKA Approved as to style and content by: ichard B. onzen air ar, of Committee) llaymon L. Johnston (Member) hlilliam P.... Fife (Member) N. . Ellis (Department Head) December 1979 ABSTRACT Airborne Asbestos Fiber Evaluat1on - A Compar1son Of Three Methods. ( December 1979) Emil Studinka, Jr. , S. S. , Clemson University M. S. , Texas A&M University Cha1rman of Ad...

Studinka, Emil

2012-06-07T23:59:59.000Z

205

Air Pollution Control Regulations: No. 13 - Particulate Emissions...  

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

Environmental Regulations Provider Department of Environmental Management The purpose of this regulation is to limit emissions of particulate matter from fossil fuel fired and...

206

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

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

172012 Development of SCR on Diesel Particulate Filter System for Heavy Duty Applications Mojghan Naseri, Daniel Kucheruck, Hai-Ying Chen , Sougato Chatterjee DEER Conference 2012...

207

Partitioning of Volatile Organics in Diesel Particulate and Exhaust...  

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

and Exhaust Partitioning of Volatile Organics in Diesel Particulate and Exhaust Evaluation of how sampling details affect the measurement of volatile organic compounds in...

208

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

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

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

209

Fuel-Neutral Studies of Particulate Matter Transport Emissions...  

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

Technologies Program Annual Merit Review and Peer Evaluation ace056stewart2011o.pdf More Documents & Publications Fuel-Neutral Studies of Particulate Matter Transport Emissions...

210

Failure Stress and Apparent Elastic Modulus of Diesel Particulate...  

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

and Apparent Elastic Modulus of Diesel Particulate Filter Ceramics Three established mechanical test specimen geometries and test methods for brittle materials are adapted to DPF...

211

Improvement and Simplification of Diesel Particulate Filter System...  

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

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

212

Requirements-Driven Diesel Catalyzed Particulate Trap Design...  

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

Requirements Driven Diesel Catalyzed Particulate Trap (DCPT) Design and Optimization Tom Harris, Donna McConnell and Danan Dou Delphi Catalyst Tulsa, Oklahoma 2 Euro 45 Light Duty...

213

Effect of Biodiesel Blends on Diesel Particulate Filter Performance  

SciTech Connect (OSTI)

Presents results of tests of ultra-low sulfur diesel blended with soy-biodiesel at 5 percent using a Cummins ISB engine with a diesel particulate filter.

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

2006-11-01T23:59:59.000Z

214

Electrically heated particulate filter regeneration using hydrocarbon adsorbents  

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 selectively heats exhaust passing through the upstream end to initiate combustion of particulates within the PF. A hydrocarbon adsorbent coating applied to the PF releases hydrocarbons into the exhaust to increase a temperature of the combustion of the particulates within the PF.

Gonze, Eugene V [Pinckney, MI

2011-02-01T23:59:59.000Z

215

Characterization of Pre-Commercial Gasoline Engine ParticulatesThrough...  

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

Pre-commercial Gasoline Engine Particulates Through Advanced Aerosol Methods Alla Zelenyuk, Paul Reitz, Mark Stewart Pacific Northwest National Laboratory Paul Loeper, Cory Adam,...

216

Characterization of Particulate Emissions from GDI Engine Combustion...  

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

Emissions from GDI Engine Combustion with Alcohol-blended Fuels Analysis showed that gasoline direct injection engine particulates from alcohol-blended fuels are significantly...

217

active fine particulates: Topics by E-print Network  

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

Sciences and Ecology Websites Summary: Effects of Sampling Conditions on the Size Distribution of Fine Particulate Matter Emitted from complex because the dilution...

218

Particulate Measurements and Emissions Characterization of Alternative Fuel Vehicle Exhaust  

SciTech Connect (OSTI)

The objective of this project was to measure and characterize particulate emissions from light-duty alternative fuel vehicles (AFVs) and equivalent gasoline-fueled vehicles. The project included emission testing of a fleet of 129 gasoline-fueled vehicles and 19 diesel vehicles. Particulate measurements were obtained over Federal Test Procedure and US06 cycles. Chemical characterization of the exhaust particulate was also performed. Overall, the particulate emissions from modern technology compressed natural gas and methanol vehicles were low, but were still comparable to those of similar technology gasoline vehicles.

Durbin, T. D.; Truex, T. J.; Norbeck, J. M. (Center for Environmental Research and Technology College of Engineering, University of California - Riverside, California)

1998-11-19T23:59:59.000Z

219

Particulate Matter Sampling and Volatile Organic Compound Removal...  

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

Organic Compound Removal for Characterization of Spark Ignited Direct Injection Engine Particulate Matter Sampling and Volatile Organic Compound Removal for Characterization...

220

Final Report: Particulate Emissions Testing, Unit 1, Potomac...  

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

were completed while Unit 1 was operating at 90% of full load (84MW) or greater. Final Report: Particulate Emissions Testing, Unit 1, Potomac River Generating Station, Alexandria,...

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Particulate Produced from Advanced Combustion Operation in a...  

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

Produced From Advanced Combustion Operation in a Compression Ignition Engine P-1 Particulate Produced From Advanced Combustion Operation in a Compression Ignition Engine P-1...

222

Diesel Particulate Oxidation Model: Combined Effects of Fixed...  

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

Volatile Carbon Diesel Particulate Oxidation Model: Combined Effects of Fixed & Volatile Carbon Poster presented at the 16th Directions in Engine-Efficiency and Emissions Research...

223

E-Print Network 3.0 - airborne particles ii Sample Search Results  

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

Centre de mathmatiques Collection: Mathematics 47 Ris-R-1053(EN) Particulate Air Pollution with Summary: particulate matter in inner city air. The particle size...

224

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

225

Trends in Particulate Nanostructure | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of EnergyThe EnergyDepartment7 thFuel27, 2008,Inc. | DepartmentParticulate

226

Modeling and interpreting the observed effects of ash on diesel particulate filter performance and regeneration  

E-Print Network [OSTI]

Diesel particulate filters (DPF) are devices that physically capture diesel particulates to prevent their release to the atmosphere. Diesel particulate filters have seen widespread use in on- and off-road applications as ...

Wang, Yujun, Ph. D. Massachusetts Institute of Technology

2014-01-01T23:59:59.000Z

227

ARM Airborne Continuous carbon dioxide measurements  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The heart of the AOS CO2 Airborne Rack Mounted Analyzer System is the AOS Manifold. The AOS Manifold is a nickel coated aluminum analyzer and gas processor designed around two identical nickel-plated gas cells, one for reference gas and one for sample gas. The sample and reference cells are uniquely designed to provide optimal flushing efficiency. These cells are situated between a black-body radiation source and a photo-diode detection system. The AOS manifold also houses flow meters, pressure sensors and control valves. The exhaust from the analyzer flows into a buffer volume which allows for precise pressure control of the analyzer. The final piece of the analyzer is the demodulator board which is used to convert the DC signal generated by the analyzer into an AC response. The resulting output from the demodulator board is an averaged count of CO2 over a specified hertz cycle reported in volts and a corresponding temperature reading. The system computer is responsible for the input of commands and therefore works to control the unit functions such as flow rate, pressure, and valve control.The remainder of the system consists of compressors, reference gases, air drier, electrical cables, and the necessary connecting plumbing to provide a dry sample air stream and reference air streams to the AOS manifold.

Biraud, Sebastien

228

Process for off-gas particulate removal and apparatus therefor  

DOE Patents [OSTI]

In the event of a breach in the off-gas line of a melter operation requiring closure of the line, a secondary vessel vent line is provided with a particulate collector utilizing atomization for removal of large particulates from the off-gas. The collector receives the gas containing particulates and directs a portion of the gas through outer and inner annular channels. The collector further receives a fluid, such as water, which is directed through the outer channel together with a second portion of the particulate-laden gas. The outer and inner channels have respective ring-like termination apertures concentrically disposed adjacent one another on the outer edge of the downstream side of the particulate collector. Each of the outer and inner channels curves outwardly away from the collector`s centerline in proceeding toward the downstream side of the collector. Gas flow in the outer channel maintains the fluid on the channel`s wall in the form of a ``wavy film,`` while the gas stream from the inner channel shears the fluid film as it exits the outer channel in reducing the fluid to small droplets. Droplets formed by the collector capture particulates in the gas stream by one of three mechanisms: impaction, interception or Brownian diffusion in removing the particulates. The particulate-laden droplets are removed from the fluid stream by a vessel vent condenser or mist eliminator. 4 figs.

Carl, D.E.

1997-10-21T23:59:59.000Z

229

Process for off-gas particulate removal and apparatus therefor  

DOE Patents [OSTI]

In the event of a breach in the off-gas line of a melter operation requiring closure of the line, a secondary vessel vent line is provided with a particulate collector utilizing atomization for removal of large particulates from the off-gas. The collector receives the gas containing particulates and directs a portion of the gas through outer and inner annular channels. The collector further receives a fluid, such as water, which is directed through the outer channel together with a second portion of the particulate-laden gas. The outer and inner channels have respective ring-like termination apertures concentrically disposed adjacent one another on the outer edge of the downstream side of the particulate collector. Each of the outer and inner channels curves outwardly away from the collector's centerline in proceeding toward the downstream side of the collector. Gasflow in the outer channel maintains the fluid on the channel's wall in the form of a "wavy film," while the gas stream from the inner channel shears the fluid film as it exits the outer channel in reducing the fluid to small droplets. Droplets formed by the collector capture particulates in the gas stream by one of three mechanisms: impaction, interception or Brownian diffusion in removing the particulates. The particulate-laden droplets are removed from the fluid stream by a vessel vent condenser or mist eliminator.

Carl, Daniel E. (Orchard Park, NY)

1997-01-01T23:59:59.000Z

230

Method for immobilizing particulate materials in a packed bed  

DOE Patents [OSTI]

The present invention pertains generally to immobilizing particulate matter contained in a "packed" bed reactor so as to prevent powder migration, compaction, coalescence, or the like. More specifically, this invention relates to a technique for immobilizing particulate materials using a microporous foam-like polymer such that a) the particulate retains its essential chemical nature, b) the local movement of the particulate particles is not unduly restricted, c) bulk powder migration and is prevented, d) physical and chemical access to the particulate is unchanged over time, and e) very high particulate densities are achieved. The immobilized bed of the present invention comprises a vessel for holding particulate matter, inlet and an outlet ports or fittings, a loosely packed bed of particulate material contained within the vessel, and a three dimensional porous matrix for surrounding and confining the particles thereby fixing the movement of individual particle to a limited local position. The established matrix is composed of a series of cells or chambers comprising walls surrounding void space, each wall forming the wall of an adjacent cell; each wall containing many holes penetrating through the wall yielding an overall porous structure and allowing useful levels of gas transport.

Even, Jr., William R. (Livermore, CA); Guthrie, Stephen E. (Livermore, CA); Raber, Thomas N. (Livermore, CA); Wally, Karl (Lafayette, CA); Whinnery, LeRoy L. (Livermore, CA); Zifer, Thomas (Manteca, CA)

1999-01-01T23:59:59.000Z

231

Method for immobilizing particulate materials in a packed bed  

DOE Patents [OSTI]

The present invention pertains generally to immobilizing particulate matter contained in a packed bed reactor so as to prevent powder migration, compaction, coalescence, or the like. More specifically, this invention relates to a technique for immobilizing particulate materials using a microporous foam-like polymer such that (a) the particulate retains its essential chemical nature, (b) the local movement of the particulate particles is not unduly restricted, (c) bulk powder migration and is prevented, (d) physical and chemical access to the particulate is unchanged over time, and (e) very high particulate densities are achieved. The immobilized bed of the present invention comprises a vessel for holding particulate matter, inlet and an outlet ports or fittings, a loosely packed bed of particulate material contained within the vessel, and a three dimensional porous matrix for surrounding and confining the particles thereby fixing the movement of an individual particle to a limited local position. The established matrix is composed of a series of cells or chambers comprising walls surrounding void space, each wall forming the wall of an adjacent cell; each wall containing many holes penetrating through the wall yielding an overall porous structure and allowing useful levels of gas transport. 4 figs.

Even, W.R. Jr.; Guthrie, S.E.; Raber, T.N.; Wally, K.; Whinnery, L.L.; Zifer, T.

1999-02-02T23:59:59.000Z

232

Method for removing particulate matter from a gas stream  

DOE Patents [OSTI]

Particulate matter is removed from a stream of pressurized gas by directing the stream of gas upwardly through a bed of porous material, the porous bed being held in an open ended container and at least partially submerged in liquid. The passage of the gas through the porous bed sets up a circulation in the liquid which cleans the particulate matter from the bed.

Postma, Arlin K. (Benton City, WA)

1984-01-01T23:59:59.000Z

233

On-Board Engine Exhaust Particulate Matter Sensor for HCCI and...  

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

On-Board Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel Engines On-Board Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel...

234

E-Print Network 3.0 - air particulate samples Sample Search Results  

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

search results for: air particulate samples Page: << < 1 2 3 4 5 > >> 1 Prevention of Air Pollution from Ships: Diesel Engine Particulate Emission Reduction via...

235

The Relationships of Particulate Matter and Particulate Organic Carbon with Hypoxic Conditions Along the Texas-Louisiana Shelf  

E-Print Network [OSTI]

an onboard surface-water flow-through system, CTD casts, and by an undulating towed vehicle. Total particulate matter and particulate organic carbon samples were obtained from Niskin bottles on CTD casts. Samples were also taken to measure dissolved oxygen...

Zuck, Nicole A

2014-08-06T23:59:59.000Z

236

BioSAR Airborne Biomass Sensing System  

SciTech Connect (OSTI)

This CRADA was developed to enable ORNL to assist American Electronics, Inc. test a new technology--BioSAR. BioSAR is a an airborne, low frequency (80-120 MHz {approx} FM radio frequencies) synthetic aperture radar (SAR) technology which was designed and built for NASA by ZAI-Amelex under Patrick Johnson's direction. At these frequencies, leaves and small branches are nearly transparent and the majority of the energy reflected from the forest and returned to the radar is from the tree trunks. By measuring the magnitude of the back scatter, the volume of the tree trunk and therefore the biomass of the trunks can be inferred. The instrument was successfully tested on tropical rain forests in Panama. Patrick Johnson, with American Electronics, Inc received a Phase II SBIR grant from DOE Office of Climate Change to further test and refine the instrument. Mr Johnson sought ORNL expertise in measuring forest biomass in order for him to further validate his instrument. ORNL provided ground truth measurements of forest biomass at three locations--the Oak Ridge Reservation, Weyerhaeuser Co. commercial pine plantations in North Carolina, and American Energy and Power (AEP) Co. hardwood forests in southern Ohio, and facilitated flights over these forests. After Mr. Johnson processed the signal data from BioSAR instrument, the processed data were given to ORNL and we attempted to derive empirical relationships between the radar signals and the ground truth forest biomass measurements using standard statistical techniques. We were unsuccessful in deriving such relationships. Shortly before the CRADA ended, Mr Johnson discovered that FM signal from local radio station broadcasts had interfered with the back scatter measurements such that the bulk of the signal received by the BioSAR instrument was not backscatter from the radar but rather was local radio station signals.

Graham, R.L.; Johnson, P.

2007-05-24T23:59:59.000Z

237

Overlap zoned electrically heated particulate filter  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter that includes an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than or equal to one, and wherein the N zones and the M sub-zones are arranged in P layers, where P is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

Gonze, Eugene V [Pinckney, MI; Chapman, Mark R [Brighton, MI

2011-07-19T23:59:59.000Z

238

Laser induced thermophoresis and particulate deposition efficiency  

SciTech Connect (OSTI)

The interaction of laser radiation and an absorbing aerosol in a tube flow has been considered. The aerosol is produced by external heating of reactants as in the MCVD (Modified Chemical Vapor Deposition) process to produce submicron size particles in the manufacture of optical fiber preforms. These are subsequently deposited by thermophoretic forces on the inner wall of the tube as they are convected by a Poiseuille velocity profile. Axial laser radiation in the tube interacts with the absorbing particles, and the laser heating of the gas induces additional thermophoretic forces that markedly increase the efficiency of particulate deposition. A particle concentration dependent absorption coefficient that appears in the energy equation couples the energy equation to the equation of particle conservation, so that a non-linear set of coupled partial integrodifferential equations must be solved. Numerical solutions for aerosol particle trajectories, and thus deposition efficiencies, have been obtained. It is shown that laser enhanced thermophoresis markedly improves the deposition efficiency.

Cipolla, J.; Morse, T.F.; Wang, C.Y.

1983-07-01T23:59:59.000Z

239

E-Print Network 3.0 - airborne aura laser Sample Search Results  

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

laser Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne aura laser Page: << < 1 2 3 4 5 > >> 1 We analysed airborne laser altimetry acquired...

240

E-Print Network 3.0 - airborne multispectral mas Sample Search...  

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

Lieff Airborne Research Australia, Flinders University Glen Scholz Source: Walker, Jeff - Department of Civil and Environmental Engineering, University of Melbourne...

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Particulate contamination removal from wafers using plasmas and mechanical agitation  

DOE Patents [OSTI]

Particulate contamination removal from wafers is disclosed using plasmas and mechanical agitation. The present invention includes the use of plasmas with mechanical agitation for removing particulate matter from the surface of a wafer. The apparatus hereof comprises a mechanical activator, at least one conducting contact pin for transferring the vibration from the activator to the wafer, clamp fingers that maintain the wafer`s position, and means for generating a plasma in the vicinity of the surface of the wafer, all parts of the cleaning apparatus except the mechanical activator and part of the contact pin being contained inside the processing chamber. By exposing a wafer to a plasma and providing motion thereto in a direction perpendicular to its surface, the bonding between the particulate matter and the surface may be overcome. Once free of the wafer surface, the particulates become charged by electrons from the plasma and are drawn into the plasma by attractive forces which keep them from redepositing. The introduction of a flowing gas through the plasma sweeps the particulates away from the wafer and out of the plasma. The entire surface is cleaned during one cleaning step. The use of an rf plasma to accomplish the particulate removal was found to remove more than 90% of the particulates. 4 figs.

Selwyn, G.S.

1998-12-15T23:59:59.000Z

242

A real-time airborne scatterometer data processor  

E-Print Network [OSTI]

Subject: Electrical Fngineering A REAL-TIME AIRBORNE SCATTEROMETER DATA PROCESSOR A Thesis by Gary James Reisor Approved as to style and content by: arrman o Committee Hea o Depa tment em er Mem er August 1976 ABSTRACT A Real-time Airborne...b. Read-Only Memory Uni. 't. III-10a, RAM Unit Block Diagram III-10b. ROM Unit Block Diagram IV-1. Asynch I/O Unit Block Diagram 48 50 50 55 IV-2. Asynchronous Data Requires Start and Stop Bits. 56 IV-3. Format and Status Port Bit...

Reisor, Gary James

1976-01-01T23:59:59.000Z

243

Evaluation of Ambient Particulate Matter (PM) Sampler Performance Through Wind Tunnel Testing  

E-Print Network [OSTI]

.46. The mean cut-point and slope values were statistically different from the upper limit of EPA-specified performance criteria of 10.5 mu m for the cut-point and 1.6 for the slope. The PM10 samplers over-sampled cornstarch but under-sampled ultrafine and fine...

Guha, Abhinav

2010-07-14T23:59:59.000Z

244

Impacts of a Nanosized Ceria Additive on Diesel Engine Emissions of Particulate and Gaseous Pollutants  

E-Print Network [OSTI]

reductions of CO2, CO, total particulate mass, formaldehyde, acetaldehyde, acrolein, and several polycyclic

Garfunkel, Eric

245

Li2O Particulate Flow Concept, APPLE APEX Interim Report November, 1999  

E-Print Network [OSTI]

Li2O Particulate Flow Concept, APPLE APEX Interim Report November, 1999 9-1 CHAPTER 9: Li2O PARTICULATE FLOW CONCEPT ­ APPLE DESIGN Contributors Lead Author: Dai Kai Sze Dai Kai Sze, Zhanhe Wang (ANL Particulate Flow Concept, APPLE APEX Interim Report November, 1999 9-2 9. LI2O PARTICULATE FLOW CONCEPT

California at Los Angeles, University of

246

Automated particulate sampler field test model operations guide  

SciTech Connect (OSTI)

The Automated Particulate Sampler Field Test Model Operations Guide is a collection of documents which provides a complete picture of the Automated Particulate Sampler (APS) and the Field Test in which it was evaluated. The Pacific Northwest National Laboratory (PNNL) Automated Particulate Sampler was developed for the purpose of radionuclide particulate monitoring for use under the Comprehensive Test Ban Treaty (CTBT). Its design was directed by anticipated requirements of small size, low power consumption, low noise level, fully automatic operation, and most predominantly the sensitivity requirements of the Conference on Disarmament Working Paper 224 (CDWP224). This guide is intended to serve as both a reference document for the APS and to provide detailed instructions on how to operate the sampler. This document provides a complete description of the APS Field Test Model and all the activity related to its evaluation and progression.

Bowyer, S.M.; Miley, H.S.

1996-10-01T23:59:59.000Z

247

The effects of secondary air injection on particulate matter emissions  

E-Print Network [OSTI]

An experimental study was performed to investigate the effects of secondary air injection (SAI) on particulate matter (PM) emissions. SAI was developed to reduce hydrocarbon (HC) emissions and has been shown to be effective ...

Pritchard, Joseph James

2014-01-01T23:59:59.000Z

248

aerosol bound particulates: Topics by E-print Network  

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

Data) cloud drop size distributions and (iv) TWP-ICE (Darwin, Australia) rain drop size distributions. A. M. Selvam 2010-05-08 26 7, 1569315721, 2007 Particulate PAH Computer...

249

REVIEW OF DIESEL PARTICULATE MATTER SAMPLING METHODS Supplemental Report # 1  

E-Print Network [OSTI]

REVIEW OF DIESEL PARTICULATE MATTER SAMPLING METHODS Supplemental Report # 1 DIESEL EXHAUST.D. and Megan Arnold University of Minnesota Department of Mechanical Engineering Center for Diesel Research....................................................................................... 3 Diesel aerosol size instrumentation............................................................ 4

Minnesota, University of

250

REVIEW OF DIESEL PARTICULATE MATTER SAMPLING METHODS Supplemental Report # 2  

E-Print Network [OSTI]

REVIEW OF DIESEL PARTICULATE MATTER SAMPLING METHODS Supplemental Report # 2 AEROSOL DYMAMICS Arnold University of Minnesota Department of Mechanical Engineering Center for Diesel Research................................................................................................. 3 Diesel aerosol composition and structure................................................... 3

Minnesota, University of

251

Modeling of Particulate Matter Emissions from Agricultural Operations  

E-Print Network [OSTI]

State Air Pollution Regulation Agencies (SAPRAs) issue and enforce permits that limit particulate matter emissions from all sources including layer and broiler facilities, cattle feedyards, dairies, cotton gins, and grain elevators...

Bairy, Jnana 1988-

2013-01-02T23:59:59.000Z

252

Passive Remote Sensing of Clouds from Airborne Platforms  

E-Print Network [OSTI]

instrument: the Solar Spectral Flux Radiometer (SSFR) · Some spectrometry/radiometry basics · How can we Airborne Measurements? · For climate studies, the high temporal and spatial variability of aerosols vertical profiles of radiative flux: where is radiative energy being deposited? · Combined with in situ

Toohey, Darin W.

253

The study of cirrus clouds using airborne and satellite data  

E-Print Network [OSTI]

Cirrus clouds are known to play a key role in the earth's radiation budget, yet are one of the most uncertain components of the earth-atmosphere system. With the development of instruments such as the Airborne Visible/Infrared Imaging Spectrometer...

Meyer, Kerry Glynne

2004-09-30T23:59:59.000Z

254

airborne differential absorption: Topics by E-print Network  

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

airborne differential absorption First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Department of...

255

Ultrasonic wave propagation in random and periodic particulate composites  

E-Print Network [OSTI]

ULTRASONIC WAVE PROPAGATION IN RANDOM AND PERIODIC PARTICULATE COMPOSITES A Thesis by BENJAMIN KYLE HENDERSON Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfilltnent of the requirements for the degree... of MASTER OF SCIENCE May 1996 Major Subject: Aerospace Engineering ULTRASONIC WAVE PROPAGATION IN RANDOM AND PERIODIC PARTICULATE COMPOSITES A Thesis by BENJAMIN KYLE HENDERSON Submitted to Texas ASM University in partial fulfillment...

Henderson, Benjamin Kyle

1996-01-01T23:59:59.000Z

256

Zone heated inlet ignited diesel particulate filter regeneration  

DOE Patents [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

257

Diesel particulate filter (DPF) regeneration by electrical heating of resistive coatings  

DOE Patents [OSTI]

An exhaust system that processes exhaust generated by an engine includes a diesel particulate filter (DPF) that is disposed downstream of the engine and that filters particulates from the exhaust. An electrical heater is integrally formed in an upstream end of the DPF and selectively heats the exhaust to initiate combustion of the particulates within the exhaust as it passes therethrough. Heat generated by combustion of the particulates induces combustion of particulates within the DPF.

Williamson, Weldon S. (Malibu, CA); Gonze, Eugene V. (Pinckney, MI)

2008-12-30T23:59:59.000Z

258

Fine particulate chemical composition and light extinction at Meadview, AZ  

SciTech Connect (OSTI)

The concentration of fine particulate nitrate, sulfate, and carbonaceous material was measured for 12-hr daynight samples using diffusion denuder samplers during the Project Measurement of Haze and Visibility Effects (MOHAVE) July to August 1992 Summer Intensive study at Meadview, AZ, just west of Grand Canyon National Park. Organic material was measured by several techniques. Only the diffusion denuder method measured the semivolatile organic material. Fine particulate sulfate and nitrate (using denuder technology) determined by various groups agreed. Based on the various collocated measurements obtained during the Project MOHAVE study, the precision of the major fine particulate species was {+-} 0.6 {mu}g/m{sup 3} organic material, {+-} 0.3 {mu}g/m{sup 3} ammonium sulfate, and {+-} 0.07 {mu}g/m{sup 3} ammonium nitrate. Fine particulate organic material was the principal particulate contributor to light extinction during the study period, with fine particulate sulfate as the second most important contributor. Particle light extinction was dominated by sulfate and organic material during periods of lowest light extinction. Combination of the extinction data and chemical mass balance analysis of sulfur oxides sources in the region indicate that the major anthropogenic contributors to light extinction were from the Los Angeles, CA, and Las Vegas, NV, urban areas. Mohave Power Project associated secondary sulfate was a negligible contributor to light extinction. 49 refs., 12 figs., 7 tabs.

Delbert J. Eatough; Wenxuan Cui; Jeffery Hull; Robert J. Farber [Brigham Young University, Provo, UT (United States). Department of Chemistry and Biochemistry

2006-12-15T23:59:59.000Z

259

Alternatives to Diesel Fuel in California - Fuel Cycle Energy and Emission Effects of Possible Replacements Due to the TAC Diesel Particulate Decision  

SciTech Connect (OSTI)

Limitations on petroleum-based diesel fuel in California could occur pursuant to the 1998 declaration by California's Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a carcinogen, therefore a toxic air contaminant (TAC) subject to the state's Proposition 65. It is the declared intention of CARB not to ban or restrict diesel fuel, per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible ''mid-course'' strategies, each of which results in some degree of (conventional) diesel displacement. In the first case, with substantial displacement of compression ignition by spark ignition engines, diesel fuel is assumed admissible for ignition assistance as a pilot fuel in natural gas (NG)-powered heavy-duty vehicles. Gasoline demand in California increases by 32.2 million liters (8.5 million gallons) per day overall, about 21 percent above projected 2010 baseline demand. Natural gas demand increases by 13.6 million diesel liter (3.6 million gallon) equivalents per day, about 7 percent above projected (total) consumption level. In the second case, ressionignition engines utilize substitutes for petroleum-based diesel having similar ignition and performance properties. For each case we estimated localized air emission plus generalized greenhouse gas and energy changes. Fuel replacement by di-methyl ether yields the greatest overall reduction in NOx emissions, though all scenarios bring about PM10 reductions relative to the 2010 baseline, with greatest reductions from the first case described above and the least from fuel replacement by Fischer-Tropsch synthetic diesel. Economic implications of vehicle and engine replacement were not formally evaluated.

Christopher L. Saraicks; Donald M. Rote; Frank Stodolsky; James J. Eberhardt

2000-05-01T23:59:59.000Z

260

Continuous particulate monitoring for emission control  

SciTech Connect (OSTI)

An optical continuous particle monitoring system has been developed to overcome common problems associated with emissions monitoring equipment. Opacity monitors generally use a single- or double-pass system to analyze the presence of dust particles in the flue gas stream. The particles scatter and absorb light as it passes through the stack. As the particle content in the gas stream increases due to bag failure or some other problem, the amount of light that is blocked also increases. The opacity monitor compares the amount of lost light energy to the total energy of the light available and translates the signal to percentage of opacity. Opacity monitors are typically installed to meet the requirements set forth by pollution control agencies. Most opacity monitors are designed to meet all of the requirements of the Environmental Protection Agency (EPA) 40 CFR, Part 60, Appendix B, Performance Specification. The new continuous particle monitor (CPM) increases the accuracy of emission monitoring and overcomes typical problems found in conventional emission monitoring devices. The CPM is an optically based, calibratible, continuous dust monitor that uses a microprocessor, transmitter head, and receiver head. When calibrated with an isokinetic sample, a continuous readout of particulate concentration (in mg/m[sup 3]) in the exhaust gas is provided. The system can be used as a filter bag failure system or a long-term emission trend analyzer. Formal testing was conducted to evaluate the effectiveness of the optically based CPM. The monitor was calibrated using particles of a range of compositions, size distributions, and concentrations. The feasibility of using the instrument to measure particle concentration as low as 10 mg/m[sup 3] was examined.

Bock, A.H. (BHA Group, Inc., Kansas City, MO (United States))

1993-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Microwave-Regenerated Diesel Exhaust Particulate Filter  

SciTech Connect (OSTI)

Development of a microwave-regenerated particulate filter system has evolved from bench scale work to actual diesel engine experimentation. The filter system was initially evaluated on a stationary mounted 1.2-L diesel engine and was able to remove a significant amount of carbon particles from the exhaust. The ability of the microwave energy to regenerate or clean the filter was also demonstrated on this engine under idle conditions. Based on the 1.2-L experiments, improvements to the filter design and materials were implemented and the system was re-evaluated on a vehicle equipped with a 7.3-L diesel engine. The 7.3-L engine was selected to achieve heavy filter loading in a relatively short period of time. The purpose of these experiments was to evaluate filter-loading capacity, power requirements for regeneration, and filter regeneration efficiency. A more detailed evaluation of the filter was performed on a stationary mounted 1.9-L diesel engine. The effect of exhaust flow rate, loading, transients, and regeneration on filter efficiency was evaluated with this setup. In addition, gaseous exhaust emissions were investigated with and without an oxidation catalyst on the filter cartridge during loading and regeneration. (SAE Paper SAE-2001-01-0903 2001 SAE International. This paper is published on this website with permission from SAE International. As a user of this website, you are permitted to view this paper on-line, download this pdf file and print one copy of this paper at no cost for your use only. The downloaded pdf file and printout of this SAE paper may not be copied, distributed or forwarded to others or for the use of others.)

Nixdorf, Richard D. (Industrial Ceramic Solution, LLC); Green, Johney Boyd; Story, John M.; Wagner, Robert M. (Oak Ridge National Laboratory)

2001-03-05T23:59:59.000Z

262

The development of a passive dosimeter for airborne benzene vapors  

E-Print Network [OSTI]

entirely different from that usually employed in gas or vapor collection devices, as there is no need for pumps and airflow control s to provi de fi xed airflows or volumes. This principle, Ficks First Law of Diffusion, states tha t the rate of transfer...+ Ilay 1978 ABSTRACT The Development of a Passive Dosimeter for Airborne Benzene Vapor. ", . (Nay 1978) David Hilliam Hager, B. S. , University of Rochester; Chairman of Advisory Committee: Dr. David F. Ciapo Passive diffusion dosimeters offer...

Hager, David William

2012-06-07T23:59:59.000Z

263

Particulate control for low rank coals  

SciTech Connect (OSTI)

The power generating system in Victoria currently comprises a total capacity of 6650 MW. Eighty percent of this capacity consists of base load stations in the Latrobe Valley using brown coal. The Latrobe Valley brown coals have unique characteristics with high moisture content ranging from 58 percent to 70 percent and an ash content which is relatively low but very variable in nature. These and other factors associated with the coal have caused special problems in handling and combustion of the coal and the de-dusting of the boiler flue gases. In recent years, this has been the basis for the design parameters adopted for all the plants in the system. With respect to flue gas de-dusting, the SECV has carried out extensive laboratory studies to characterize the different ashes obtained from the Latrobe Valley brown coals, including precipitability and aerodynamic tests. It also carried out full-scale tests on operating plants and pilot tests have been conducted on inertial collectors, precipitators and bag filters. The Environmental Protection Authority of Victoria has established a particulate emission level of 0.150 grams/m{sup 3} n.t.p. dry for recent Latrobe Valley boilers. However, the mandated emission level takes into account wide variations in operating conditions, and the plants normally achieve much lower emission levels. The Latrobe Valley plants presently in operation include Yallourn W (2x350 MW + 2x375 MW), Morwell (170 MW total and briquette factory), Hazelwood (8x200 MW) and Loy Yang (4x500 MW). The Yalloum W boilers are supplied with coal from the Yalloum Open Cut, the Morwell and Hazelwood boilers from the Morwell Open Cut and Loy Yang boilers from the Loy Yang Open Cut. All boilers are pulverized coal fired (PCF) and incorporate special firing equipment to enable the as-mined wet coal to be fired directly into the furnaces. All boilers are fitted with electrostatic precipitators. The locations of the stations and open cuts are shown.

Touzel, R.McD.

1993-12-31T23:59:59.000Z

264

Method and apparatus for injecting particulate media into the ground  

DOE Patents [OSTI]

An improved method and apparatus for injecting particulate media into the ground for constructing underground permeable reactive barriers, which are used for environmental remediation of subsurface contaminated soil and water. A media injector sub-assembly attached to a triple wall drill string pipe sprays a mixture of active particulate media suspended in a carrier fluid radially outwards from the sub-assembly, at the same time that a mixing fluid is sprayed radially outwards. The media spray intersects the mixing spray at a relatively close distance from the point of injection, which entrains the particulate media into the mixing spray and ensures a uniform and deep dispersion of the active media in the surrounding soil. The media injector sub-assembly can optionally include channels for supplying compressed air to an attached down-the-hole hammer drive assembly for use during drilling.

Dwyer, Brian P.; Dwyer, Stephen F.; Vigil, Francine S.; Stewart, Willis E.

2004-12-28T23:59:59.000Z

265

Method for dispersing catalyst onto particulate material and product thereof  

DOE Patents [OSTI]

A method for dispersing finely divided catalyst precursors onto the surface of coal or other particulate material includes the steps of forming a wet paste mixture of the particulate material and a liquid solution containing a dissolved transition metal salt, for instance a solution of ferric nitrate. The wet paste mixture is in a state of incipient wetness with all of this solution adsorbed onto the surfaces of the particulate material without the presence of free moisture. On adding a precipitating agent such as ammonia, a catalyst precursor such as hydrated iron oxide is deposited on the surfaces of the coal. The catalyst is activated by converting it to the sulfide form for the hydrogenation or direct liquefaction of the coal.

Utz, Bruce R. (Pittsburgh, PA); Cugini, Anthony V. (Pittsburgh, PA)

1992-01-01T23:59:59.000Z

266

Biodiesel Fuel Property Effects on Particulate Matter Reactivity  

SciTech Connect (OSTI)

Controlling diesel particulate emissions to meet the 2007 U.S. standard requires the use of a diesel particulate filter (DPF). The reactivity of soot, or the carbon fraction of particulate matter, in the DPF and the kinetics of soot oxidation are important in achieving better control of aftertreatment devices. Studies showed that biodiesel in the fuel can increase soot reactivity. This study therefore investigated which biodiesel fuel properties impact reactivity. Three fuel properties of interest included fuel oxygen content and functionality, fuel aromatic content, and the presence of alkali metals. To determine fuel effects on soot reactivity, the performance of a catalyzed DPF was measured with different test fuels through engine testing and thermo-gravimetric analysis. Results showed no dependence on the aromatic content or the presence of alkali metals in the fuel. The presence and form of fuel oxygen was the dominant contributor to faster DPF regeneration times and soot reactivity.

Williams, A.; Black, S.; McCormick, R. L.

2010-06-01T23:59:59.000Z

267

Effectiveness of bomber deployed autonomous airborne vehicles in finding rail mobile SS-24s  

SciTech Connect (OSTI)

Computer simulation predictions of the effectiveness of autonomous airborne vehicles in finding rail mobile SS-24s are presented. Effectiveness is discussed for several autonomous airborne vehicle endurances and survivabilities for the search area southwest of Moscow. The effect of where the Soviets place the SS-24s on the rail network was also investigated. The simulation predicts significant variations in the ability of a multi-autonomous airborne vehicle system to find SS-24s with these parameters. 12 figs., 1 tab.

Abey, A.E.; Erickson, S.A.; Norquist, P.D.

1990-08-01T23:59:59.000Z

268

Apparatus and method for void/particulate detection  

DOE Patents [OSTI]

Apparatus and method for detecting voids and particulates in a fluid within a containing vessel. A diffuse ultrasonic signal is coupled into the fluid by a first transducer and the portion of the ultrasonic signal transmitted through the fluid is detected by a second transducer. The received signal is analyzed by a processor to determine the void fraction of the fluid responsive to the attenuation of the received ultrasonic signal. In addition, voids and particulates are detected by evaluating the increase in side-band energy of the received signal.

Claytor, Thomas N. (Woodridge, IL); Ockert, Carl E. (Vienna, VA); Randall, Richard (Canoga Park, CA)

1987-01-01T23:59:59.000Z

269

A particulate non-specific alkaline phosphatase in Saccharomyces cerevisiae  

E-Print Network [OSTI]

. Dennis J. Opheim A previously undefined alkaline phosphatase in yeast, which is particulate, has been found. This latter form has no mobil- ity on polyacrylamide gels and can be sedimented after centri- fugation at 200, 000 x g for one hour. Over 90X... of the enzyme activity can be solubilized from the particulate fraction with 100 mM sodium cholate. In the solubilized state this enzyme has been found to migrate in the same position on polyacrylamide gels as the already known soluble repressible alkaline...

Mitchell, James Kent

1980-01-01T23:59:59.000Z

270

E-Print Network 3.0 - airborne sound insulation Sample Search...  

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

reports from inspections investigations of indoor mold Summary: with in-duct filters will remove many airborne spores, fungi can grow on air filters or on...

271

E-Print Network 3.0 - airborne mycobacterium parafortuitum Sample...  

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

University Collection: Biology and Medicine 23 Flow Dynamics and Characterization of a Cough Jitendra K. Guptaa Summary: Airborne disease transmission has always been a topic of...

272

E-Print Network 3.0 - airborne effluent control Sample Search...  

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

Science 7 Effluent Monitoring 4-1 4. Effluent Monitoring Summary: has a comprehensive air pollution control and monitoring program to ensure that airborne discharges... control...

273

E-Print Network 3.0 - air-borne power ultrasonic Sample Search...  

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

search results for: air-borne power ultrasonic Page: << < 1 2 3 4 5 > >> 1 Center for Industrial Sensors and Measurements Department Materials Science & Engineering Summary:...

274

E-Print Network 3.0 - airborne astronomy missions Sample Search...  

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

test and validate space exploration concepts safely fly-out the Space Shuttle... operations, conduct airborne remote sensing and science observations, and revolutionize...

275

E-Print Network 3.0 - airborne carbon 14c Sample Search Results  

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

Bern Collection: Environmental Sciences and Ecology ; Geosciences 65 Biomass and Bioenergy 31 (2007) 646655 Estimating biomass of individual pine trees using airborne...

276

E-Print Network 3.0 - airborne moisture-indicating microorganisms...  

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

surface. In order to investigate the microorganisms present... obtained on the Marine Agar plates indicating a possible marine source for some of these airborne Source: Rainey,...

277

E-Print Network 3.0 - airborne imaging spectroscopy Sample Search...  

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

1 Airborne Traffic Flow Data and Traffic Management Mark Hickman and Pitu Mirchandani ATLAS Center... Board, Traffic Flow Theory Committee Abstract: Imagery collected from...

278

E-Print Network 3.0 - airborne vehicle uav Sample Search Results  

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

most notably being the GAFASTA Jindivik... their development of UAV systems for autonomous airborne remote sensing under tight commercial secrecy. 12;Table 1... ., Gordon,...

279

E-Print Network 3.0 - airborne unmanned survey Sample Search...  

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

consist... of disparate mobile airborne platforms; will provide reliable ad hoc interconnectivity to terrestrial Source: Sundaram, Ravi - College of Computer Science,...

280

E-Print Network 3.0 - airborne gravitational noise Sample Search...  

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

Planetary Science Conference XXXIV, abstract 1887, 2003 FIRST AIRBORNE THERMAL INFRARED HYPERSPECTRAL IMAGING OF A DRY LAKE: REAL- Summary: resolution and sensitivity...

Note: This page contains sample records for the topic "airborne particulates pm10" 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

E-Print Network 3.0 - airborne nitrogen load Sample Search Results  

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

Search Sample search results for: airborne nitrogen load Page: << < 1 2 3 4 5 > >> 1 AIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER WATERSHED Summary: watershed. The...

282

E-Print Network 3.0 - airborne trace element Sample Search Results  

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

Search Sample search results for: airborne trace element Page: << < 1 2 3 4 5 > >> 1 AIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER WATERSHED Summary: pollution in Lake...

283

E-Print Network 3.0 - airborne laser scanner Sample Search Results  

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

Powered by Explorit Topic List Advanced Search Sample search results for: airborne laser scanner Page: << < 1 2 3 4 5 > >> 1 International Conference on Machine Control &...

284

E-Print Network 3.0 - airborne ultrasound technology Sample Search...  

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

ultrasound technology Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne ultrasound technology Page: << < 1 2 3 4 5 > >> 1 Non-contact Method...

285

E-Print Network 3.0 - airborne gamma-ray surveying Sample Search...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray surveying Page: << < 1 2 3 4 5 > >> 1 Geophysical Research Abstracts Vol. 12,...

286

E-Print Network 3.0 - airborne gamma-ray spectrometry Sample...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray spectrometry Page: << < 1 2 3 4 5 > >> 1 Geophysical Research Abstracts Vol. 12,...

287

E-Print Network 3.0 - airborne gamma spectrometry Sample Search...  

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

blimps (or other airborne agents) carrying instruments and sensors... Mystery of Gamma-Ray Bursts An international team of astronomers has found good support for the idea... that...

288

E-Print Network 3.0 - airborne gamma-ray measurements Sample...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray measurements Page: << < 1 2 3 4 5 > >> 1 Geophysical Research Abstracts Vol. 12,...

289

E-Print Network 3.0 - airborne gamma survey Sample Search Results  

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

blimps (or other airborne agents) carrying instruments and sensors... Mystery of Gamma-Ray Bursts An international team of astronomers has found good support for the idea... that...

290

al-sic particulate composites: Topics by E-print Network  

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

(more) Li, Wei 2008-01-01 2 Damping and Stiffness of Particulate SiCInSn Composite Materials Science Websites Summary: Damping and Stiffness of Particulate SiC-InSn Composite...

291

The effect of lubricant derived ash on the catalytic activity of diesel particulate filters  

E-Print Network [OSTI]

A diesel particulate filter (DPF) is an aftertreatment device used to remove hazardous particulate matter (PM) from diesel engine exhaust. Modem emission restrictions have limited the acceptable amount of PM output by ...

Murray, Timothy Quinn

2014-01-01T23:59:59.000Z

292

Imaging of Diesel Particulate Filters using a High-Flux Neutron...  

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

Imaging of Diesel Particulate Filters using a High-Flux Neutron Source Imaging of Diesel Particulate Filters using a High-Flux Neutron Source Detailed images of deposits identified...

293

Testing an Active Diesel Particulate Filter on a 2-Cycle Marine...  

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

an Active Diesel Particulate Filter on a 2-Cycle Marine Engine Testing an Active Diesel Particulate Filter on a 2-Cycle Marine Engine Presentation given at DEER 2006, August 20-24,...

294

PII S0016-7037(99)00361-0 Dissolved and particulate carbohydrates in contrasting marine sediments  

E-Print Network [OSTI]

PII S0016-7037(99)00361-0 Dissolved and particulate carbohydrates in contrasting marine sediments D) and mid-Atlantic shelf/slope break (continental margin) sediments. Particulate carbohydrates (PCHOs) rep- resented 5­9% of the total sediment particulate organic carbon (POC), and PCHO remineralization appeared

Burdige, David

295

2008-01-0333 Detailed Effects of a Diesel Particulate Filter on the Reduction  

E-Print Network [OSTI]

2008-01-0333 Detailed Effects of a Diesel Particulate Filter on the Reduction of Chemical Species of Wisconsin-Madison Copyright 2008 SAE International ABSTRACT Diesel particulate filters are designed to reduce the mass emissions of diesel particulate matter and have been proven to be effective

Wu, Mingshen

296

Electrically heated particulate filter regeneration methods and systems for hybrid vehicles  

DOE Patents [OSTI]

A control system for controlling regeneration of a particulate filter for a hybrid vehicle is provided. The system generally includes a regeneration module that controls current to the particulate filter to initiate regeneration. An engine control module controls operation of an engine of the hybrid vehicle based on the control of the current to the particulate filter.

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

2010-10-12T23:59:59.000Z

297

CEC-500-2010-FS-017 Volatility of Ultrafine Particulate  

E-Print Network [OSTI]

. Limited research has been done to characterize compressed natural gas mass emissions and practically-volatile and semi-volatile fractions of ultrafine particulate matter emissions from compressed natural gas vehicles compressed natural gas, and emission control technologies that will best protect human health

298

Electrically heated particulate matter filter with recessed inlet end plugs  

DOE Patents [OSTI]

A particulate matter (PM) filter includes filter walls having inlet ends and outlet ends. First adjacent pairs of the filter walls define inlet channels. Second adjacent pairs of the filter walls define outlet channels. Outlet end plugs are arranged in the inlet channels adjacent to the output ends. Inlet end plugs arranged in the outlet channels spaced from the inlet ends.

Gonze, Eugene V. (Pinckney, MI); Ament, Frank (Troy, MI)

2012-02-21T23:59:59.000Z

299

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

300

Inductively heated particulate matter filter regeneration control system  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter with an upstream end for receiving exhaust gas, a downstream end and zones. The system also includes a heating element. A control module selectively activates the heating element to inductively heat one of the zones.

Gonze, Eugene V; Paratore Jr., Michael J; Kirby, Kevin W; Phelps, Amanda; Gregoire, Daniel J

2012-10-23T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Characterization of particulate emissions from non-ferrous smelters  

SciTech Connect (OSTI)

Chemical-composition and particle-size data for particulate emissions from stationary sources are required for environmental health-effect assessments, air chemistry studies, and air-quality-modelling investigations such as source apportionment. In this study, particulate emissions from a group of non-ferrous smelters were physically and chemically characterized. Emission samples were collected at the baghouse outlets from smelter furnaces and at smelter acid plant stacks at three locations: a zinc, a lead, and a copper smelter. Mass emission rate determinations were made by EPA reference methods. Cascade impactors were used to collect in-stack samples for particle-size distribution measurements. Particulate samples for chemical characterization were collected on membrane filters for analysis by X-ray fluorescence spectroscopy. Development measurement techniques required to determine the elemental composition of the total mass and sized fractions of the emission are discussed. Results of the tests at the three smelters include total mass and elemental emission rates, particle-size distribution, and the elemental composition of the total particulate mass and of sized fractions from both the smelter furnaces and acid plants.

Bennett, R.L.; Knapp, K.T.

1989-01-01T23:59:59.000Z

302

NUCLEATION PHENOMENON IN SiC PARTICULATE REINFORCED MAGNESIUM COMPOSITE  

E-Print Network [OSTI]

NUCLEATION PHENOMENON IN SiC PARTICULATE REINFORCED MAGNESIUM COMPOSITE Y. Cai, D. Taplin, M.J. Tan performance of matrix metals and alloys. Most magnesium alloy based MMCs are produced via a casting process into the last freezing interdendritic regions. For magnesium based composites, both particle pushing (or capture

Zhou, Wei

303

The distribution of particulate aluminum in the Gulf of Mexico  

E-Print Network [OSTI]

of runoff water in the oceans. Toyota and Okabe (1967) reported vertical distri- butions of particulate aluminum ranging from 1-50 ug Al/L in samples from the Western North Pacific, Indian and Antarctic Oceans. , Stefansson and Atkinson (1969) used...

Feely, Richard Alan

1971-01-01T23:59:59.000Z

304

Comparative Analysis on the Effects of Diesel Particulate Filter and  

E-Print Network [OSTI]

Comparative Analysis on the Effects of Diesel Particulate Filter and Selective Catalytic Reduction February 15, 2008. Revised manuscript received May 2, 2008. Accepted May 27, 2008. Two methods, diesel that these aftertreatment systems may have on the emission levels of a wide spectrum of chemical species found in diesel

Wu, Mingshen

305

REVIEW OF DIESEL PARTICULATE MATTER SAMPLING FINAL REPORT  

E-Print Network [OSTI]

REVIEW OF DIESEL PARTICULATE MATTER SAMPLING METHODS FINAL REPORT Prepared by David B. Kittelson of Mechanical Engineering Center for Diesel Research Minneapolis, MN January 14, 1999 #12;01/14/99 Page 2 TABLE ................................................................................................................5 DIESEL ENGINE TECHNOLOGY AND EMISSION REGULATIONS .............................7 PHYSICAL

Minnesota, University of

306

Electrically heated particulate filter diagnostic systems and methods  

DOE Patents [OSTI]

A system that diagnoses regeneration of an electrically heated particulate filter is provided. The system generally includes a grid module that diagnoses a fault of the grid based on at least one of a current signal and a voltage signal. A diagnostic module at least one of sets a fault status and generates a warning signal based on the fault of the grid.

Gonze, Eugene V [Pinckney, MI

2009-09-29T23:59:59.000Z

307

Parallel High-Resolution Finite Volume Simulation of Particulate Processes  

E-Print Network [OSTI]

these methods is verified by application to PBMs for (1) aerosol coagulation and condensation, (2) the formation, coagulation, crystallization, distributed parameter systems, numerical analysis Introduction Particulate, in crystallization, x is the size of crystals measured by length or volume, f(x,t) is the crystal size distribution

Braatz, Richard D.

308

The Morgantown Energy Technology Center`s particulate cleanup program  

SciTech Connect (OSTI)

The development of integrated gasification combined cycle (IGCC) and pressurized fluidized-bed combustion (PFBC) power systems has made it possible to use coal while still protecting the environment. Such power systems significantly reduce the pollutants associated with coal-fired plants built before the 1970s. This superior environmental performance and related high system efficiency is possible, in part, because particulate gas-stream cleanup is conducted at high-temperature and high-pressure process conditions. A main objective of the Particulate Cleanup Program at the Morgantown Energy Technology Center (METC) is to ensure the success of the CCT demonstration projects. METC`s Particulate Cleanup Program supports research, development, and demonstration in three areas: (1) filter-system development, (2) barrier-filter component development, and (3) ash and char characterization. The support is through contracted research, cooperative agreements, Cooperative Research And Development Agreements (CRADAs), and METC`s own in-house research. This paper describes METC`s Particulate Cleanup Program.

Dennis, R.A.

1995-12-01T23:59:59.000Z

309

Analysis of mixing layer heights inferred from radiosonde, wind profiler, airborne lidar, airborne microwave temperature profiler, and in-situ aircraft data during the Texas 2000 air quality study in Houston, TX  

E-Print Network [OSTI]

The mixing layer (ML) heights inferred from radiosondes, wind profilers, airborne lidar, airborne microwave temperature profiler (MTP), and in-situ aircraft data were compared during the Texas 2000 Air Quality Study in the Houston area...

Smith, Christina Lynn

2005-08-29T23:59:59.000Z

310

PIA - Radioactive Airborne Contamination Survey | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006 The 2002OpticsPeriodical: VolumeIComplaintsRadioactive Airborne

311

ARM - Evaluation Product - Airborne Visible/Infrared Imaging Spectrometer  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcal Documentation(AVIRIS) ProductsAirborne Visible/Infrared Imaging Spectrometer (AVIRIS) ARM Data Discovery

312

ARM - Field Campaign - ARM Airborne Carbon Measurements (ARM-ACME)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcal Documentation(AVIRIS) ProductsAirborneOctober 11, 2011 [Facility News]January 18, 200610, 20099,19,

313

Category:Airborne Gravity Survey | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascade Sierra SolutionsGeothermalpower.jpgAirborne Gravity

314

Biomass and Bioenergy 31 (2007) 646655 Estimating biomass of individual pine trees using airborne lidar  

E-Print Network [OSTI]

Biomass and Bioenergy 31 (2007) 646­655 Estimating biomass of individual pine trees using airborne biomass and bio-energy feedstocks. The overall goal of this study was to develop a method for assessing aboveground biomass and component biomass for individual trees using airborne lidar data in forest settings

315

Abstract--Airborne pollution and explosive gases threaten human health and occupational safety, therefore generating high  

E-Print Network [OSTI]

Abstract--Airborne pollution and explosive gases threaten human health and occupational safety and a thumb-drive sized prototype system. I. INTRODUCTION xposure to air pollution consistently ranks among to occupational safety as energy demands rise. Airborne pollutants and explosive gases vary in both time and space

Mason, Andrew

316

QUANTITATIVE ECOLOGY Airborne Radar Observations of the Flight Behavior of Small Insects in  

E-Print Network [OSTI]

, with the vertical air velocity measured at ?ight level. We hypothesize that the gregarious behavior of small insectsQUANTITATIVE ECOLOGY Airborne Radar Observations of the Flight Behavior of Small Insects of insects in the convective boundary layer (CBL) is examined by means of pro?ling airborne Doppler radar

Geerts, Bart

317

Using Cell Phones to Detect Harmful Airborne Engineering lab named after company that hopes to commercialize  

E-Print Network [OSTI]

Using Cell Phones to Detect Harmful Airborne Substances Engineering lab named after company focused on using mobile devices, such as cell phones, to detect harmful airborne substances in real detection capabilities with mobile devices, including cell phones that can interface global positioning

318

A glacier inventory for South Tyrol, Italy, based on airborne laser-scanner data  

E-Print Network [OSTI]

A glacier inventory for South Tyrol, Italy, based on airborne laser-scanner data Christoph KNOLL-mail: christoph.knoll@uibk.ac.at ABSTRACT. A new approach to glacier inventory, based on airborne laser supervision. Earlier inventories, from 1983 and 1997, are used to compare changes in area, volume

Kerschner, Hanns

319

Estimating the Evaporative Cooling Bias of an Airborne Reverse Flow Thermometer YONGGANG WANG AND BART GEERTS  

E-Print Network [OSTI]

Estimating the Evaporative Cooling Bias of an Airborne Reverse Flow Thermometer YONGGANG WANG form 24 June 2008) ABSTRACT Airborne reverse flow immersion thermometers were designed to prevent in cloud is surmised because air decelerates into the thermometer housing, and thus is heated and becomes

Geerts, Bart

320

Vertical Velocity and Buoyancy Characteristics of Coherent Echo Plumes in the Convective Boundary Layer, Detected by a Profiling Airborne Radar  

E-Print Network [OSTI]

scatterers (mostly insects). In this study, airborne radar measurements of the CBL are combined with flight-level Layer, Detected by a Profiling Airborne Radar QUN MIAO AND BART GEERTS University of Wyoming, Laramie 20 June 2005, in final form 8 November 2005) ABSTRACT Aircraft and airborne millimeter-wave radar

Geerts, Bart

Note: This page contains sample records for the topic "airborne particulates pm10" 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

A Relaxation Strategy for the Optimization of Airborne Wind Energy Sebastien Gros, M. Zanon and Moritz Diehl  

E-Print Network [OSTI]

A Relaxation Strategy for the Optimization of Airborne Wind Energy Systems S´ebastien Gros, M. Zanon and Moritz Diehl Abstract-- Optimal control is recognized by the Airborne Wind Energy (AWE problem. Keywords : airborne wind energy, optimal control, non- convex optimization, flight control I

322

E-Print Network 3.0 - air quality metrics Sample Search Results  

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

(annually) 2. Particulate matter (PM10) a. Health hazard b. Visibility air quality 3. Dioxins... . Greenhouse gas b. Heating agent c. 40 million metric tons of carbon emissions...

323

Airborne coal dust reduction in Romanian power plants  

SciTech Connect (OSTI)

Romanian power plant coal handling and preparation areas have not introduced adequate dust collection systems. Therefore, the measurement of airborne coal dust shows that these values are higher than the maximum allowable value under Romanian regulations. The author`s company has been testing a dry dust collection system formed by a ductwork/bagfilter/exhaust fan system. The system was installed at a coal transfer point with a drop height of about 10 meters. The quantity of extracted and cleaned air was about 5,000 m{sup 3}/hr. The airborne dust concentration in the exhausted air was under 4 mg/m{sup 3}. Due to an inadequate skirtboard design that did not prove airtight, there was not enough negative pressure in the containment region. The dust collection system efficiency will be improved with design modifications and tested again. The results have shown that the system can be an efficient solution for local dust collection in power plant coal handling facilities.

Matei, M.; Renel, I. [Energy Research and Modernizing Inst., Bucharest (Romania)

1994-12-31T23:59:59.000Z

324

E-Print Network 3.0 - airborne toxic metals Sample Search Results  

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

Sciences, Texas Tech University Collection: Biology and Medicine 2 Particulate Air Pollution has a Metal Mediated Cytotoxic Effect Detected by Whole Cell Bacterial Reporters...

325

Microwave mode shifting antenna system for regenerating particulate filters  

DOE Patents [OSTI]

A regeneration system comprises a particulate matter (PM) filter including a microwave energy absorbing surface, and an antenna system comprising N antennas and an antenna driver module that sequentially drives the antenna system in a plurality of transverse modes of the antenna system to heat selected portions of the microwave absorbing surface to regenerate the PM filter, where N is an integer greater than one. The transverse modes may include transverse electric (TE) and/or transverse magnetic (TM) modes.

Gonze, Eugene V [Pinckney, MI; Kirby, Kevin W [Calabasas Hills, CA; Phelps, Amanda [Malibu, CA; Gregoire, Daniel J [Thousand Oaks, CA

2011-04-26T23:59:59.000Z

326

Advanced hybrid particulate collector and method of operation  

DOE Patents [OSTI]

A device and method for controlling particulate air pollutants of the present invention combines filtration and electrostatic collection devices. The invention includes a chamber housing a plurality of rows of filter elements. Between the rows of filter elements are rows of high voltage discharge electrodes. Between the rows of discharge electrodes and the rows of filter elements are grounded perforated plates for creating electrostatic precipitation zones.

Miller, Stanley J. (Grand Forks, ND)

2003-04-08T23:59:59.000Z

327

Device for measuring the flow of a gas containing particulates  

SciTech Connect (OSTI)

This patent describes an apparatus for continuously measuring the flow of a gas containing entrained particulates. It comprises: a flow channel, through which the gas flows; an orifice disposed within the flow channel, including at least a first surface and a second surface; means for causing the first surface and second surface independently to move in directions perpendicular to lines normal to the surfaces; scraping means, for intimately contacting at least a portion of the first surface and of the second surface, at all times while the surfaces are moving, whereby particulates which adhere to the first and second surfaces are removed by the movement of the surfaces past the scraping means; pressure taps, positioned so as to communicate with the flow channel upstream and downstream from the orifice, the pressure taps additionally in communication with pressure-measuring means, for measuring the pressure differential in the flow channel resulting from the passage of the gas through the orifice; and thermophoretic heaters, positioned so as to heat the gas within the pressure taps, and thereby excluding particulates therefrom.

Gordon, R.G.; Hofer, P.H.

1991-01-08T23:59:59.000Z

328

Initial assessment of an airborne Ku-band polarimetric SAR.  

SciTech Connect (OSTI)

Polarimetric synthetic aperture radar (SAR) has been used for a variety of dual-use research applications since the 1940's. By measuring the direction of the electric field vector from radar echoes, polarimetry may enhance an analyst's understanding of scattering effects for both earth monitoring and tactical surveillance missions. Polarimetry may provide insight into surface types, materials, or orientations for natural and man-made targets. Polarimetric measurements may also be used to enhance the contrast between scattering surfaces such as man-made objects and their surroundings. This report represents an initial assessment of the utility of, and applications for, polarimetric SAR at Ku-band for airborne or unmanned aerial systems.

Raynal, Ann Marie; Doerry, Armin Walter

2013-02-01T23:59:59.000Z

329

Final report. Electro-Seise, Inc., Airborne Survey  

SciTech Connect (OSTI)

The Rocky Mountain Oilfield Testing Center (RMOTC) has recently completed a test of an airborne microgravity and electric field sensing technology developed by Electro-Seise, Inc. of Fort Worth, Texas. The test involved the use of a single engine airplane to gather data over the Teapot Dome oil field along a tight grid spacing and along thirty (30) survey lines. The resultant gravity structure maps, based on the field data, were found to overlay the known structure of Teapot Dome. In addition, fault maps, based on the field data, were consistent with the known fault strike at Teapot Dome. Projected hydrocarbon thickness maps corresponded to some of the known production histories at RMOTC. Exceptions to the hydrocarbon thickness maps were also found to be true.

Schulte, Ralph

2001-06-01T23:59:59.000Z

330

Method for measuring the size distribution of airborne rhinovirus  

SciTech Connect (OSTI)

About 50% of viral-induced respiratory illnesses are caused by the human rhinovirus (HRV). Measurements of the concentrations and sizes of bioaerosols are critical for research on building characteristics, aerosol transport, and mitigation measures. We developed a quantitative reverse transcription-coupled polymerase chain reaction (RT-PCR) assay for HRV and verified that this assay detects HRV in nasal lavage samples. A quantitation standard was used to determine a detection limit of 5 fg of HRV RNA with a linear range over 1000-fold. To measure the size distribution of HRV aerosols, volunteers with a head cold spent two hours in a ventilated research chamber. Airborne particles from the chamber were collected using an Andersen Six-Stage Cascade Impactor. Each stage of the impactor was analyzed by quantitative RT-PCR for HRV. For the first two volunteers with confirmed HRV infection, but with mild symptoms, we were unable to detect HRV on any stage of the impactor.

Russell, M.L.; Goth-Goldstein, R.; Apte, M.G.; Fisk, W.J.

2002-01-01T23:59:59.000Z

331

Clean enough for industry? An airborne geophysical case study  

SciTech Connect (OSTI)

Data from two airborne geophysical surveys of the Department of Energy`s Oak Ridge Reservation (ORR) were extremely valuable in deciding whether a 1000-acre (400 hectare) parcel of the ORR should be released to the City of Oak Ridge for industrial development. Our findings, based on electromagnetic and magnetic data, were incorporated in the federally mandated Environmental Assessment Statement (EAS), and in general supported claims that this land was never used as a hazardous waste disposal site. We estimated the amount of iron required to produce each anomaly using a simple dipole model. All anomalies with equivalent sources greater than approximately 1000 kg of iron were checked in the field, and the source of all but one identified as either a bridge, reinforced concrete debris, or a similarly benign object. Additionally, some smaller anomalies (equivalent sources of roughly 500 kg) have been checked; thus far, these also have innocuous sources. Airborne video proved invaluable in identifying logging equipment as the source of some of these anomalies. Geologic noise may account for some of the remaining anomalies. Naturally occurring accumulations of magnetic minerals in the soil on the ORR have been shown to produce anomalies which, at a sensor height of 30 m, are comparable to the anomaly produced by about 500 kg of iron. By comparison, the electronic noise of the magnetic gradiometer, 0.01--0.02 nT/m, is equivalent to only about 50--100 kg of iron at a 30 m sensor height. The electromagnetic data, combined with field mapping of karst structures, provided evidence of a northeast-southwest striking conduit spanning the parcel. The possible existence of a karst conduit led the EAS authors to conclude that this is a ``sensitive hydrologic setting.`` We conclude that aerial geophysics is an extremely cost-effective, and efficient technique for screening large tracts of land for environmental characterization.

Nyquist, J.E.; Beard, L.P.

1996-02-01T23:59:59.000Z

332

Airborne Multisensor Pod System (AMPS) data management overview  

SciTech Connect (OSTI)

An overview of the Data Management Plan for the Airborne Multisensor Pod System (AMPS) pro-grain is provided in this document. The Pacific Northwest Laboratory (PNL) has been assigned the responsibility of data management for the program, which includes defining procedures for data management and data quality assessment. Data management is defined as the process of planning, acquiring, organizing, qualifying and disseminating data. The AMPS program was established by the U.S. Department of Energy (DOE), Office of Arms Control and Non-Proliferation (DOE/AN) and is integrated into the overall DOE AN-10.1 technology development program. Sensors used for collecting the data were developed under the on-site inspection, effluence analysis, and standoff sensor program, the AMPS program interacts with other technology programs of DOE/NN-20. This research will be conducted by both government and private industry. AMPS is a research and development program, and it is not intended for operational deployment, although the sensors and techniques developed could be used in follow-on operational systems. For a complete description of the AMPS program, see {open_quotes}Airborne Multisensor Pod System (AMPS) Program Plan{close_quotes}. The primary purpose of the AMPS is to collect high-quality multisensor data to be used in data fusion research to reduce interpretation problems associated with data overload and to derive better information than can be derived from any single sensor. To collect the data for the program, three wing-mounted pods containing instruments with sensors for collecting data will be flight certified on a U.S. Navy RP-3A aircraft. Secondary objectives of the AMPS program are sensor development and technology demonstration. Pod system integrators and instrument developers will be interested in the performance of their deployed sensors and their supporting data acquisition equipment.

Wiberg, J.D.; Blough, D.K.; Daugherty, W.R.; Hucks, J.A.; Gerhardstein, L.H.; Meitzler, W.D.; Melton, R.B.; Shoemaker, S.V.

1994-09-01T23:59:59.000Z

333

Chemopreventive activity of compounds extracted from Casearia sylvestris (Salicaceae) Sw against DNA damage induced by particulate matter emitted by sugarcane burning near Araraquara, Brazil  

SciTech Connect (OSTI)

Ethanolic extract of Casearia sylvestris is thought to be antimutagenic. In this study, we attempted to determine whether this extract and casearin X (a clerodane diterpene from C. sylvestris) are protective against the harmful effects of airborne pollutants from sugarcane burning. To that end, we used the Tradescantia micronucleus test in meiotic pollen cells of Tradescantia pallida, the micronucleus test in mouse bone marrow cells, and the comet assay in mouse blood cells. The mutagenic compound was total suspended particulate (TSP) from air. For the Tradescantia micronucleus test, T. pallida cuttings were treated with the extract at 0.13, 0.25, or 0.50 mg/ml. Subsequently, TSP was added at 0.3 mg/ml, and tetrads from the inflorescences were examined for micronuclei. For the micronucleus test in mouse bone marrow cells and the comet assay in mouse blood cells, Balb/c mice were treated for 15 days with the extract3.9, 7.5, or 15.0 mg/kg body weight (BW)or with casearin X0.3, 0.25, or 1.2 mg/kg BWafter which they received TSP (3.75 mg/kg BW). In T. pallida and mouse bone marrow cells, the extract was antimutagenic at all concentrations tested. In mouse blood cells, the extract was antigenotoxic at all concentrations, whereas casearin X was not antimutagenic but was antigenotoxic at all concentrations. We conclude that C. sylvestris ethanolic extract and casearin X protect DNA from damage induced by airborne pollutants from sugarcane burning. -- Highlights: ? We assessed DNA protection of C. sylvestris ethanolic extract. ? We assessed DNA protection of casearin X. ? We used Tradescantia pallida micronucleus test as screening. ? We used comet assay and micronucleus test in mice. ? The compounds protected DNA against sugar cane burning pollutants.

Prieto, A.M. [UNESP Univ. Estadual Paulista, College of Pharmaceutical Sciences, Department of Clinical Analysis, Rua Expedicionrios do Brasil, 1621, Araraquara (Brazil)] [UNESP Univ. Estadual Paulista, College of Pharmaceutical Sciences, Department of Clinical Analysis, Rua Expedicionrios do Brasil, 1621, Araraquara (Brazil); Santos, A.G. [UNESP Univ. Estadual Paulista, College of Pharmaceutical Sciences, Department of Natural Principles and Toxicology, Rodovia Araraquara-Jau, km 01, Araraquara (Brazil)] [UNESP Univ. Estadual Paulista, College of Pharmaceutical Sciences, Department of Natural Principles and Toxicology, Rodovia Araraquara-Jau, km 01, Araraquara (Brazil); Csipak, A.R.; Caliri, C.M.; Silva, I.C. [UNESP Univ. Estadual Paulista, College of Pharmaceutical Sciences, Department of Clinical Analysis, Rua Expedicionrios do Brasil, 1621, Araraquara (Brazil)] [UNESP Univ. Estadual Paulista, College of Pharmaceutical Sciences, Department of Clinical Analysis, Rua Expedicionrios do Brasil, 1621, Araraquara (Brazil); Arbex, M.A. [UNIFESP Federal University of So Paulo, Paulista College of Medicine, Department of Internal Medicine, Rua Pedro de Toledo, 720, So Paulo (Brazil)] [UNIFESP Federal University of So Paulo, Paulista College of Medicine, Department of Internal Medicine, Rua Pedro de Toledo, 720, So Paulo (Brazil); Silva, F.S.; Marchi, M.R.R. [UNESP Univ. Estadual Paulista, Chemistry Institute, Department of Analytical Chemistry, Rua Francisco Degni, S/N, Araraquara (Brazil)] [UNESP Univ. Estadual Paulista, Chemistry Institute, Department of Analytical Chemistry, Rua Francisco Degni, S/N, Araraquara (Brazil); Cavalheiro, A.J.; Silva, D.H.S.; Bolzani, V.S. [UNESP Univ. Estadual Paulista, Chemistry Institute, Department of Organic Chemistry, Rua Francisco Degni, S/N, Araraquara (Brazil)] [UNESP Univ. Estadual Paulista, Chemistry Institute, Department of Organic Chemistry, Rua Francisco Degni, S/N, Araraquara (Brazil); Soares, C.P., E-mail: soarescp@hotmail.com [UNESP Univ. Estadual Paulista, College of Pharmaceutical Sciences, Department of Clinical Analysis, Rua Expedicionrios do Brasil, 1621, Araraquara (Brazil)

2012-12-15T23:59:59.000Z

334

E-Print Network 3.0 - atmospheric suspended particulates Sample...  

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

and particulate... and dry atmospheric deposition, roofs, urban soils, streets and other pavements. ... Source: Pitt, Robert E. - Department of Civil and Environmental...

335

Real-Time Particulate Mass Measurements Pre and Post Diesel Particulat...  

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

2005deeranderson.pdf More Documents & Publications Advanced Radio Frequency-Based Sensors for Monitoring Diesel Particulate Filter Loading and Regeneration Real-Time...

336

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

Broader source: Energy.gov [DOE]

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

337

Development of particulate-based EPR oximetry for regional, temporal, and rapid measurements in tissue.  

E-Print Network [OSTI]

??Electron paramagnetic resonance (EPR) oximetry is a useful research technique and a potential clinical tool. The goal of this dissertation was to establish particulate-based EPR (more)

Vikram, Deepti S.

2008-01-01T23:59:59.000Z

338

E-Print Network 3.0 - air pollution particulate Sample Search...  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: air pollution particulate Page: << < 1 2 3 4 5 > >> 1 COLUMBIA UNIVERSITY Department of...

339

E-Print Network 3.0 - airborne fungi isolated Sample Search Results  

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

Environmental Sciences and Ecology 2 Monday March 14 2005 Chem 247-Majors Organic Chemistry Molecule of the week: 2,4,6-trichloroanisole Summary: is results when airborne fungi...

340

E-Print Network 3.0 - airborne heavy metals Sample Search Results  

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

61 Subpart H: National Emission... - sions, and Table 4-1 presents the airborne release data from each of these facilities during 2003... County Article 12, which regulates storage...

Note: This page contains sample records for the topic "airborne particulates pm10" 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

AIRBORNE, OPTICAL REMOTE SENSNG OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. The scope of the work involved designing and developing an airborne, optical remote sensor capable of sensing methane and, if possible, ethane for the detection of natural gas pipeline leaks. Flight testing using a custom dual wavelength, high power fiber amplifier was initiated in February 2005. Ophir successfully demonstrated the airborne system, showing that it was capable of discerning small amounts of methane from a simulated pipeline leak. Leak rates as low as 150 standard cubic feet per hour (scf/h) were detected by the airborne sensor.

Jerry Myers

2005-04-15T23:59:59.000Z

342

Modeling Plot-Level Biomass and Volume Using Airborne and Terrestrial Lidar Measurements  

E-Print Network [OSTI]

The United States Forest Service (USFS) Forest Inventory and Analysis (FIA) program provides a diverse selection of data used to assess the status of the nations forested areas using sample locations dispersed throughout the country. Airborne...

Sheridan, Ryan D.

2012-07-16T23:59:59.000Z

343

E-Print Network 3.0 - airborne lidar measurements Sample Search...  

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

airborne INSAR is 2-5 m over... . However, LIDAR has potential as a complementary measurement to INSAR. The LIDAR data used in this study... estimate and the adjacent LIDAR ......

344

E-Print Network 3.0 - airborne ice sounding Sample Search Results  

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

On the basis of width and outflow, Institute Ice Stream (IIS) Summary: was initially held secret, the ice stream was not identified until airborne radar mapping in the late...

345

Design of a small fast steering mirror for airborne and aerospace applications  

E-Print Network [OSTI]

This thesis presents the analysis and design of a small advanced fast steering mirror (sAFSM) for airborne and aerospace platforms. The sAFSM provides feedback-controlled articulation of two rotational axes for precision ...

Boulet, Michael Thomas

2008-01-01T23:59:59.000Z

346

E-Print Network 3.0 - airborne thermal infrared Sample Search...  

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

Walker1 , Rocco Panciera1 and Ed Kim2 1... .walker@unimelb.edu.au Abstract Airborne remote sensing now provides a viable option for high ... Source: Walker, Jeff - Department...

347

E-Print Network 3.0 - airborne particle generated Sample Search...  

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

is being developed for airborne... consider the issue of convective heat transfer to the ice and water particles moving with the air flow... particles larger than 100 m are...

348

E-Print Network 3.0 - airborne particles generated Sample Search...  

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

is being developed for airborne... consider the issue of convective heat transfer to the ice and water particles moving with the air flow... particles larger than 100 m are...

349

E-Print Network 3.0 - accidental airborne releases Sample Search...  

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

release in: 1987 12 kg TEQs 1995 3 kg TEQs 12;Human... Exposure to Dioxins Airborne dioxins bind to particles and deposit on plants, soil and in waterways Primary... ;Accidental...

350

E-Print Network 3.0 - airborne emergency wireless Sample Search...  

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

networks. The main source of diversity is the existence of multiple paths in wireless networks... decided to use the gap model proposed in 13 to model the airborne wireless...

351

E-Print Network 3.0 - airborne laser mapping Sample Search Results  

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

Powered by Explorit Topic List Advanced Search Sample search results for: airborne laser mapping Page: << < 1 2 3 4 5 > >> 1 This special issue ofThis special issue of...

352

Multisensor Fusion of Ground-based and Airborne Remote Sensing Data for Crop Condition Assessment  

E-Print Network [OSTI]

provide applicators with guidance equipment configurations that can result in herbicide savings and optimized applications in other crops. The main focus of this research was to apply sensor fusion technology to ground-based and airborne imagery data...

Zhang, Huihui

2012-02-14T23:59:59.000Z

353

E-Print Network 3.0 - airborne gamma-ray spectra Sample Search...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray spectra Page: << < 1 2 3 4 5 > >> 1 Ivan De Mitri VHE Gamma Ray Astronomy 1 Very High...

354

E-Print Network 3.0 - airborne gamma ray Sample Search Results  

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

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma ray Page: << < 1 2 3 4 5 > >> 1 Evaluating the Impact of Advanced Memory Systems on...

355

E-Print Network 3.0 - airborne gamma-ray spectrometer Sample...  

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

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray spectrometer Page: << < 1 2 3 4 5 > >> 1 GAMMA RAYS FROM MAJOR ELEMENTS BY THERMAL...

356

Apparatus for removal of particulate matter from gas streams  

DOE Patents [OSTI]

An apparatus for the removal of particulate matter from the gaseous product stream of an entrained flow coal gasifier which apparatus includes an initial screen, an intermediate screen which is aligned with the direction of flow of the gaseous product stream and a final screen transversely disposed to the flow of gaseous product and which apparatus is capable of withstanding at least a pressure differential of about 10 psi (68.95 kPa) or greater at the temperatures of the gaseous product stream.

Smith, Peyton L. (Baton Rouge, LA); Morse, John C. (Baton Rouge, LA)

2000-01-01T23:59:59.000Z

357

Ash reduction system using electrically heated particulate matter filter  

DOE Patents [OSTI]

A control system for reducing ash comprises a temperature estimator module that estimates a temperature of an electrically heated particulate matter (PM) filter. A temperature and position estimator module estimates a position and temperature of an oxidation wave within the electrically heated PM filter. An ash reduction control module adjusts at least one of exhaust flow, fuel and oxygen levels in the electrically heated PM filter to adjust a position of the oxidation wave within the electrically heated PM filter based on the oxidation wave temperature and position.

Gonze, Eugene V [Pinckney, MI; Paratore, Jr., Michael J; He, Yongsheng [Sterling Heights, MI

2011-08-16T23:59:59.000Z

358

MERCURY CONTROL WITH THE ADVANCED HYBRID PARTICULATE COLLECTOR  

SciTech Connect (OSTI)

This project was awarded under U.S. Department of Energy (DOE) National Energy Technology Laboratory (NETL) Program Solicitation DE-PS26-00NT40769 and specifically addresses Technical Topical Area 4-Testing Novel and Less Mature Control Technologies on Actual Flue Gas at the Pilot Scale. The project team includes the Energy & Environmental Research Center (EERC) as the main contractor; W.L. Gore & Associates, Inc., as a technical and financial partner; and the Big Stone Power Plant operated by Otter Tail Power Company, host for the field-testing portion of the research. Since 1995, DOE has supported development of a new concept in particulate control called the advanced hybrid particulate collector (AHPC). The AHPC has been licensed to W.L. Gore & Associates, Inc., and is now marketed as the ADVANCED HYBRID{trademark} Filter by Gore. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a unique configuration, providing major synergism between the two collection methods, both in the particulate collection step and in the transfer of dust to the hopper. The AHPC provides ultrahigh collection efficiency, overcoming the problem of excessive fine-particle emissions with conventional ESPs, and it solves the problem of reentrainment and re-collection of dust in conventional baghouses. The AHPC appears to have unique advantages for mercury control over baghouses or ESPs as an excellent gas-solid contactor. The objective of the three-task project is to demonstrate 90% total mercury control in the AHPC at a lower cost than current mercury control estimates. The approach includes bench-scale batch testing that ties the new work to previous results and links results with larger-scale pilot testing with real flue gas on a coal-fired combustion system, pilot-scale testing on a coal-fired combustion system with both a pulse-jet baghouse and an AHPC to prove or disprove the research hypotheses, and field demonstration pilot-scale testing at a utility power plant to prove scaleup and demonstrate longer-term mercury control. This project, if successful, will demonstrate at the pilot-scale level a technology that would provide a cost-effective technique to accomplish control of mercury emissions and, at the same time, greatly enhance fine particulate collection efficiency. The technology can be used to retrofit systems currently employing inefficient ESP technology as well as for new construction, thereby providing a solution to a large segment of the U.S. utility industry as well as other industries requiring mercury control.

Stanley J. Miller; Ye Zhuang; Michelle R. Olderbak

2002-11-01T23:59:59.000Z

359

Low exhaust temperature electrically heated particulate matter filter system  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter, a sensor, a heating element, and a control module. The PM filter includes with an upstream end that receives exhaust gas, a downstream end and multiple zones. The sensor detects a temperature of the exhaust gas. The control module controls current to the heating element to convection heat one of the zones and initiate a regeneration process. The control module selectively increases current to the heating element relative to a reference regeneration current level when the temperature is less than a predetermined temperature.

Gonze, Eugene V. (Pinckney, MI); Paratore, Jr., Michael J. (Howell, MI); Bhatia, Garima (Bangalore, IN)

2012-02-14T23:59:59.000Z

360

Advanced hybrid particulate collector and method of operation  

DOE Patents [OSTI]

A device and method for controlling particulate air pollutants of the present invention combines filtration and electrostatic collection devices. The invention includes a chamber housing a plurality of rows of filter elements. Between each row of filter elements is a grounded plate. Between the grounded plates and the filter elements are electrode grids for creating electrostatic precipitation zones between each row of filter elements. In this way, when the filter elements are cleaned by pulsing air in a reverse direction, the dust removed from the bags will collect in the electrostatic precipitation zones rather than on adjacent filter elements. 12 figs.

Miller, S.J.

1999-08-17T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Electrostatic precipitator for metal and particulate emission control  

SciTech Connect (OSTI)

Improving air pollution control systems is crucial for incinerators to be an option for sewage sludge disposal. Combinations of venturi and tray tower scrubbers are the most popular air pollution control system for sewage sludge incinerators. Recently wet electrostatic precipitators have been installed downstream of the scrubbing system to ensure the compliance of new regulations. Performance and stack tests were conducted on sludge incinerators at Somerset Raritan Valley Sewage Authority and New England Treatment Company. Efficiencies in terms of heavy metal and particulate removals are presented. This paper also describes sewage sludge incinerators, existing air pollution control systems, design considerations of the wet electrostatic precipitator, as well as sampling and analysis methods.

Yang, C.L.; Beltran, M.

2000-03-01T23:59:59.000Z

362

Zoned electrical heater arranged in spaced relationship from particulate filter  

DOE Patents [OSTI]

A system comprises a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas and a downstream end. A zoned heater is arranged spaced from the upstream end and comprises N zones, where N is an integer greater than one, wherein each of the N zones comprises M sub-zones, where M is an integer greater than one. A control module selectively activates at least a selected one of the N zones to initiate regeneration in downstream portions of the PM filter from the one of the N zones and deactivates non-selected ones of the N zones.

Gonze, Eugene V [Pinckney, MI

2011-11-15T23:59:59.000Z

363

Elevated exhaust temperature, zoned, electrically-heated particulate matter filter  

DOE Patents [OSTI]

A system includes an electrical heater and a particulate matter (PM) filter that is arranged one of adjacent to and in contact with the electrical heater. A control module selectively increases an exhaust gas temperature of an engine to a first temperature and that initiates regeneration of the PM filter using the electrical heater while the exhaust gas temperature is above the first temperature. The first temperature is greater than a maximum exhaust gas temperature at the PM filter during non-regeneration operation and is less than an oxidation temperature of the PM.

Gonze, Eugene V [Pinckney, MI; Bhatia, Garima [Bangalore, IN

2012-04-17T23:59:59.000Z

364

Wireless zoned particulate matter filter regeneration control system  

DOE Patents [OSTI]

An assembly includes a particulate matter (PM) filter that comprises an upstream end for receiving exhaust gas, a downstream end and multiple zones. An absorbing layer absorbs microwave energy in one of N frequency ranges and is arranged with the upstream end. N is an integer. A frequency selective filter has M frequency selective segments and receives microwave energy in the N frequency ranges. M is an integer. One of the M frequency selective segments permits passage of the microwave energy in one of the N frequency ranges and does not permit passage of microwave energy in the other of the N frequency ranges.

Gonze, Eugene V [Pinckney, MI; Kirby, Kevin W [Calabasas Hills, CA; Phelps, Amanda [Malibu, CA

2011-10-04T23:59:59.000Z

365

Cooler and particulate separator for an off-gas stack  

DOE Patents [OSTI]

This report describes an off-gas stack for a melter, furnace or reaction vessel comprising an air conduit leading to two sets of holes, one set injecting air into the off-gas stack near the melter plenum and the second set injecting air downstream of the first set. The first set injects air at a compound angle, having both downward and tangential components, to create a reverse vortex flow, counter to the direction of flow of gas through the stack and also along the periphery of the stack interior surface. Air from the first set of holes prevents recirculation zones from forming and the attendant accumulation of particulate deposits on the wall of the stack and will also return to the plenum any particulate swept up in the gas entering the stack. The second set of holes injects air in the same direction as the gas in the stack to compensate for the pressure drop and to prevent the concentration of condensate in the stack. A set of sprayers, receiving water from a second conduit, is located downstream of the second set of holes and sprays water into the gas to further cool it.

Wright, G.T.

1991-04-08T23:59:59.000Z

366

Cooler and particulate separator for an off-gas stack  

DOE Patents [OSTI]

An off-gas stack for a melter comprising an air conduit leading to two sets of holes, one set injecting air into the off-gas stack near the melter plenum and the second set injecting air downstream of the first set. The first set injects air at a compound angle, having both downward and tangential components, to create a reverse vortex flow, counter to the direction of flow of gas through the stack and also along the periphery of the stack interior surface. Air from the first set of holes pervents recirculation zones from forming and the attendant accumulation of particulate deposits on the wall of the stack and will also return to the plenum any particulate swept up in the gas entering the stack. The second set of holes injects air in the same direction as the gas in the stack to compensate for the pressure drop and to prevent the concentration of condensate in the stack. A set of sprayers, receiving water from a second conduit, is located downstream of the second set of holes and sprays water into the gas to further cool it.

Wright, George T. (15 Cherry Hills Dr., Aiken, SC 29803)

1992-01-01T23:59:59.000Z

367

Probing into regional ozone and particulate matter pollution in the United States  

E-Print Network [OSTI]

) and fine particulate matter (PM2.5) air pollution and associated health effects have been one of the majorProbing into regional ozone and particulate matter pollution in the United States: 1. A 1 year CMAQ-term simulations using the Community Multiscale Air Quality (CMAQ) modeling system and subsequent process analyses

Jacobson, Mark

368

Resistive heater geometry and regeneration method for a diesel particulate filter  

SciTech Connect (OSTI)

One embodiment of the invention includes a diesel particulate filter comprising a first face and a second face; a bottom electrode layer formed over the first face of the diesel particulate filter; a middle resistive layer formed over a portion of the bottom electrode layer; and a top electrode layer formed over a portion of the middle resistive layer.

Phelps, Amanda (Malibu, CA); Kirby, Kevin W. (Calabasas Hills, CA); Gregoir, Daniel J. (Thousand Oaks, CA)

2011-10-25T23:59:59.000Z

369

Incorporation of particulates into accreted ice above subglacial Lake Vostok, Antarctica G. Royston-Bishop1  

E-Print Network [OSTI]

1 Incorporation of particulates into accreted ice above subglacial Lake Vostok, Antarctica G, Montana 59717, USA Abstract The nature of microscopic particulates in meteoric and accreted ice from the Vostok ice core, is assessed in conjunction with existing ice core data to investigate the mechanism

Priscu, John C.

370

Synergistic effects of lubricant additive chemistry on ash properties impacting diesel particulate filter flow resistance and catalyst performance  

E-Print Network [OSTI]

Diesel particulate filters (DPF) have seen widespread use in recent years in both on- and offroad applications as an effective means for meeting the increasingly stringent particulate emission regulations. Overtime, ...

Munnis, Sean (Sean Andrew)

2011-01-01T23:59:59.000Z

371

Developing an accelerated aging system for gasoline particulate filters and an evaluation test for effects on engine performance  

E-Print Network [OSTI]

Stringent regulations worldwide will limit the level of particulate matter (PM) emitted from gasoline engines equipped with direct fuel injection. Gasoline particulate filters (GPFs) present one strategy for meeting PM ...

Jorgensen, James E. (James Eastman)

2014-01-01T23:59:59.000Z

372

Design and calibration of the PHARUS polarimetric airborne SAR  

SciTech Connect (OSTI)

The PHARUS system uses a phased array antenna with solid state amplifiers. The project consisted of two phases, a definition phase and a realization phase. The definition phase consisted of the actual realization of a SAR research system called PHARS, which made its first successful testflight in November 1990. The research system is based on the concept of a wide beamwidth antenna, rigidly fixed to the aircraft. Pulse compression and a high PRF ensure sufficient sensitivity in this system, which is equipped with a 160 Watt peak pulse power solid state transmitter. The processing is done off-line. In the realization phase the polarimetric PHARUS system has been developed. The design is based on the experience gained with the PHARS system. The system uses a phased array with dual polarized patch radiators and is equipped with solid state amplifiers. This paper will give an overview of the PHARUS design and operational use. Apart from the use as an advanced polarimetric airborne SAR, there is the perspective of using PHARUS as a demonstrator for ESA`s future ASAR system. 2 refs., 2 figs., 1 tab.

Snoeij, P. [Delft Univ. of Technology, Delft (Netherlands); Hoogeboom, P.; Koomen, P.J. [and others

1996-11-01T23:59:59.000Z

373

Final report for measurement of primary particulate matter emissions from light-duty motor vehicles  

SciTech Connect (OSTI)

This report describes the results of a particulate emissions study conducted at the University of California, Riverside, College of Engineering-Center for Environmental Research and Technology (CE-CERT) from September of 1996 to August of 1997. The goal of this program was to expand the database of particulate emissions measurements from motor vehicles to include larger numbers of representative in-use vehicles. This work was co-sponsored by the Coordinating Research Council (CRC), the South Coast Air Quality Management District (SCAQMD), and the National Renewable Energy Laboratory (NREL) and was part of a larger study of particulate emissions being conducted in several states under sponsorship by CRC. For this work, FTP particulate mass emission rates were determined for gasoline and diesel vehicles, along with the fractions of particulates below 2.5 and 10 microns aerodynamic diameter. A total of 129 gasoline-fueled vehicles and 19 diesel-fueled vehicles were tested as part of the program.

Norbeck, J. M.; Durbin, T. D.; Truex, T. J.

1998-12-31T23:59:59.000Z

374

Pb Isotopes as an Indicator of the Asian Contribution to Particulate Air Pollution in Urban California  

SciTech Connect (OSTI)

During the last two decades, expanding industrial activity in east Asia has led to increased production of airborne pollutants that can be transported to North America. Previous efforts to detect this trans-Pacific pollution have relied upon remote sensing and remote sample locations. We tested whether Pb isotope ratios in airborne particles can be used to directly evaluate the Asian contribution to airborne particles of anthropogenic origin in western North America, using a time series of samples from a pair of sites upwind and downwind of the San Francisco Bay Area. Our results for airborne Pb at these sites indicate a median value of 29 Asian origin, based on mixing relations between distinct regional sample groups. This trans-Pacific Pb is present in small quantities but serves as a tracer for airborne particles within the growing Asian industrial plume. We then applied this analysis to archived samples from urban sites in central California. Taken together, our results suggest that the analysis of Pb isotopes can reveal the distribution of airborne particles affected by Asian industrial pollution at urban sites in northern California. Under suitable circumstances, this analysis can improve understanding of the global transport of pollution, independent of transport models.

Ewing, Stephanie A.; Christensen, John N.; Brown, Shaun T.; Vancuren, Richard A.; Cliff, Steven S.; DePaolo, Donald J.

2010-10-25T23:59:59.000Z

375

Fuel Efficient Diesel Particulate Filter (DPF) Modeling and Development  

SciTech Connect (OSTI)

The project described in this report seeks to promote effective diesel particulate filter technology with minimum fuel penalty by enhancing fundamental understanding of filtration mechanisms through targeted experiments and computer simulations. The overall backpressure of a filtration system depends upon complex interactions of particulate matter and ash with the microscopic pores in filter media. Better characterization of these phenomena is essential for exhaust system optimization. The acicular mullite (ACM) diesel particulate filter substrate is under continuing development by Dow Automotive. ACM is made up of long mullite crystals which intersect to form filter wall framework and protrude from the wall surface into the DPF channels. ACM filters have been demonstrated to effectively remove diesel exhaust particles while maintaining relatively low backpressure. Modeling approaches developed for more conventional ceramic filter materials, such as silicon carbide and cordierite, have been difficult to apply to ACM because of properties arising from its unique microstructure. Penetration of soot into the high-porosity region of projecting crystal structures leads to a somewhat extended depth filtration mode, but with less dramatic increases in pressure drop than are normally observed during depth filtration in cordierite or silicon carbide filters. Another consequence is greater contact between the soot and solid surfaces, which may enhance the action of some catalyst coatings in filter regeneration. The projecting crystals appear to provide a two-fold benefit for maintaining low backpressures during filter loading: they help prevent soot from being forced into the throats of pores in the lower porosity region of the filter wall, and they also tend to support the forming filter cake, resulting in lower average cake density and higher permeability. Other simulations suggest that soot deposits may also tend to form at the tips of projecting crystals due to the axial velocity component of exhaust moving down the filter inlet channel. Soot mass collected in this way would have a smaller impact on backpressure than soot forced into the flow restrictions deeper in the porous wall structure. This project has focused on the development of computational, analytical, and experimental techniques that are generally applicable to a wide variety of exhaust aftertreatment technologies. By helping to develop improved fundamental understanding pore-scale phenomena affecting filtration, soot oxidation, and NOX abatement, this cooperative research and development agreement (CRADA) has also assisted Dow Automotive in continuing development and commercialization of the ACM filter substrate. Over the course of this research project, ACM filters were successfully deployed on the Audi R10 TDI racecar which won the 24 Hours of LeMans endurance race in 2006, 2007, and 2008; and the 12 Hours of Sebring endurance race in 2006 and 2007. It would not have been possible for the R10 to compete in these traditionally gasoline-dominated events without reliable and effective exhaust particulate filtration. These successes demonstrated not only the performance of automotive diesel engines, but the efficacy of DPF technology as it was being deployed around the world to meet new emissions standards on consumer vehicles. During the course of this CRADA project, Dow Automotive commercialized their ACM DPF technology under the AERIFYTM DPF brand.

Stewart, Mark L.; Gallant, Thomas R.; Kim, Do Heui; Maupin, Gary D.; Zelenyuk, Alla

2010-08-01T23:59:59.000Z

376

Integrated exhaust and electrically heated particulate filter regeneration systems  

DOE Patents [OSTI]

A system includes a particulate matter (PM) filter that includes multiple zones. An electrical heater includes heater segments that are associated with respective ones of the zones. The electrical heater is arranged upstream from and proximate with the PM filter. A post-fuel injection system injects fuel into at least one of a cylinder of an engine and an exhaust system. A control module is configured to operate in a first mode that includes activating the electrical heater to heat exhaust of the engine. The control module is also configured to operate in a second mode that includes activating the post-injection system to heat the exhaust. The control module selectively operates in at least one of the first mode and the second mode.

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

2013-01-08T23:59:59.000Z

377

Direct and quantitative photothermal absorption spectroscopy of individual particulates  

SciTech Connect (OSTI)

Photonic structures can exhibit significant absorption enhancement when an object's length scale is comparable to or smaller than the wavelength of light. This property has enabled photonic structures to be an integral component in many applications such as solar cells, light emitting diodes, and photothermal therapy. To characterize this enhancement at the single particulate level, conventional methods have consisted of indirect or qualitative approaches which are often limited to certain sample types. To overcome these limitations, we used a bilayer cantilever to directly and quantitatively measure the spectral absorption efficiency of a single silicon microwire in the visible wavelength range. We demonstrate an absorption enhancement on a per unit volume basis compared to a thin film, which shows good agreement with Mie theory calculations. This approach offers a quantitative approach for broadband absorption measurements on a wide range of photonic structures of different geometric and material compositions.

Tong, Jonathan K.; Hsu, Wei-Chun; Eon Han, Sang; Burg, Brian R.; Chen, Gang, E-mail: gchen2@mit.edu [Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)] [Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Zheng, Ruiting [Key Laboratory of Radiation Beam Technology and Materials Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875 (China)] [Key Laboratory of Radiation Beam Technology and Materials Modification of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875 (China); Shen, Sheng [Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)] [Department of Mechanical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States)

2013-12-23T23:59:59.000Z

378

Atmospheric Environment 41 (2007) 49084919 Particle size and composition distribution analysis of automotive  

E-Print Network [OSTI]

of automotive brake abrasion dusts for the evaluation of antimony sources of airborne particulate matter Akihiro

Short, Daniel

379

Comparison of Airborne and Spaceborne 95-GHz Radar Reflectivities and Evaluation of Multiple Scattering Effects in Spaceborne Measurements  

E-Print Network [OSTI]

of coincident measurements collected by an airborne 95-GHz radar during the African Monsoon Multidisci- plinary radar calibration is assessed. Collocated measurements of the spaceborne and airborne radars within the CloudSat measurements have to be corrected for this effect, if one wants to derive accurate level 2

Protat, Alain

380

Long-term determination of airborne concentrations of unattached and attached radon progeny using stacked LR 115 detector with  

E-Print Network [OSTI]

Long-term determination of airborne concentrations of unattached and attached radon progeny using-term measurements Radon progeny a b s t r a c t We developed the theoretical basis for long-term determination of airborne concentrations of unattached and attached radon progeny. The work was separated into two parts

Yu, K.N.

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Cost-effective particulate control options at Potomac Electric Power Company's Dickerson Station: An integrated approach to current and future particulate limits  

SciTech Connect (OSTI)

The Dickerson Generating Station evaluated several particulate control options to identify the most cost-effective option. The study's goals were to: eliminate the particulate scrubber and its high maintenance costs, and incorporate flexibility for low-sulfur coal and possible stricter emission limits. Each of the three Dickerson 190 MW units has a small 37-year-old electrostatic precipitator and a wet particulate scrubber. The study evaluated alternatives to replace the scrubber and enhance ESP performance: Existing ESP alternatives--Extend height of existing ESP; Flue gas conditioning. Scrubber stream alternatives--Partial-flow ESP or pulse jet baghouse. Full-flow alternatives--Supplemental ESP; COHPAC baghouse; replacement ESP or baghouse. A technical and economic prescreening eliminated some of the options. Capital, operating, and life cycle costs were estimated for the remaining options to determine the most cost-effective alternative. This paper will present the technical and economic evaluations done for this study, including performance and costs.

Christoffersen, S.W.; Rouse, G.T.; Krasnopoler, M.J.; Chapowski, J.A.

1998-07-01T23:59:59.000Z

382

OPERATING EXPERIENCE LEVEL 3, Requalification Test Failure of Certain High Efficiency Particulate Air (HEPA) Filters- Update  

Broader source: Energy.gov [DOE]

2014-01 Operating Experience Level 3 (OE-3) document provides information regarding the previous requalification test failure and subsequent successful requalification, of certain high efficiency particulate air (HEPA) filter models manufactured by Flanders Corporation.

383

2008-01-1748 An Analysis of Methods for Measuring Particulate Matter Mass  

E-Print Network [OSTI]

. The particulate organics are typically considered to be derived from diesel fuel and lubrication oil [1 filters (DPFs). Because of this, it is necessary to fully understand the effects that these low emission

Wu, Mingshen

384

On-Board Engine Exhaust Particulate Matter Sensor for HCCI and Conventional Diesel Engines  

SciTech Connect (OSTI)

The goal of the research was to refine and complete development of an on-board particulate matter (PM) sensor for diesel, DISI, and HCCI engines, bringing it to a point where it could be commercialized and marketed.

Hall, Matt; Matthews, Ron

2011-09-30T23:59:59.000Z

385

Passive regeneration : long-term effects on ash characteristics and diesel particulate filter performance  

E-Print Network [OSTI]

Diesel particulate filters (DPF) have seen widespread growth as an effective means for meeting increasingly rigorous particle emissions regulations. There is growing interest to exploit passive regeneration of DPFs to ...

Bahr, Michael J., Nav. E. (Michael James). Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

386

Neutral carbohydrate geochemistry of particulate material (trap and core sediments) in an eutrophic lake (Aydat,  

E-Print Network [OSTI]

Neutral carbohydrate geochemistry of particulate material (trap and core sediments) in an eutrophic Carbohydrate compositions were determined on sinking particles and core samples from eutrophic lake Aydat; Eutrophic lake; Aydat lake 1. Introduction Polysaccharides are common structural and storage polymers

Paris-Sud XI, Université de

387

Errors associated with particulate matter measurements on rural sources: appropriate basis for regulating cotton gins  

E-Print Network [OSTI]

Agricultural operations across the United States are encountering difficulties complying with current air pollution regulations for particulate matter (PM). PM is currently regulated in terms of particle diameters less than or equal to a nominal 10...

Buser, Michael Dean

2004-09-30T23:59:59.000Z

388

Determination of particulate lead using aerosol mass spectrometry: MILAGRO/MCMA-2006 observations  

E-Print Network [OSTI]

We report the first measurements of particulate lead (Pb) from Aerodyne Aerosol Mass Spectrometers, which were deployed in and around Mexico City during the Megacity Initiative: Local and Global Research Observations ...

Salcedo, D.

389

How does pulmonary exposure to particulate matter predispose the heart to increased injury after myocardial infarction?  

E-Print Network [OSTI]

One of the most prevalent pollutants in urban cities is diesel exhaust particulate (DEP). Air pollution has been linked with increased risk of recurrent myocardial infarction (MI) and MI related death (Brook, 2008). This ...

Robertson, Sarah

2013-07-06T23:59:59.000Z

390

Air dispersion modeling of particulate matter from ground-level area sources  

E-Print Network [OSTI]

State Air Pollution Regulatory Agencies (SAPRAs) often use dispersion modeling to predict downwind concentrations of particulate matter (PM) from a facility. As such, a facility may be granted or denied an operating permit based on the results...

Meister, Michael Todd

2000-01-01T23:59:59.000Z

391

Relationship between meteorological variables and total suspended and heavy metal particulates in Little Rock, Arkansas  

E-Print Network [OSTI]

RELATIONSHIP BETWEEN METEOROLOGICAL VARIABLES AND TOTAL SUSPENDED AND HEAVY NFXAL PARTICULATES IN LITTLE ROCK, ARKANSAS A Thesis MARY GWENDOLl'N AVERY Submitted to the Graduate College of Texas ALM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE May 1985 Major Subject: Meteorology RELATIONSHIP BETWEEN METEOROLOGICAL VARIABLES AND TOTAL SUSPENDED AND HEAVY METAL PARTICULATES IN LITTLE ROCK, ARKANSAS A Thesis MARY GWENDOLYN AVERY Approved...

Avery, Mary Gwendolyn

1985-01-01T23:59:59.000Z

392

Development of a hot isostatic pressing process for manufacturing silicon carbide particulate reinforced iron  

E-Print Network [OSTI]

DEVELOPMENT OP A BOT ISOSTATIC PRBSSIHG PROCESS POR HAHUPACTURIHG SILICON CARBIDE PARTICULATE RBINPORCBD IRON A Thesis by DAVID OSCAR OAKESON 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 August 1992 Major Subject: Aerospace Engineering DEVELOPMENT OF A EOT ISOSTATIC PRESBING PROCESB FOR MANUFACTURING BILICON CARBIDE PARTICULATE REINFORCED IRON A Thesis by DAVID OSCAR OAKESON Approved...

Oakeson, David Oscar

1992-01-01T23:59:59.000Z

393

Optical backscatter probe for sensing particulate in a combustion gas stream  

DOE Patents [OSTI]

A system for sensing particulate in a combustion gas stream is disclosed. The system transmits light into a combustion gas stream, and thereafter detects a portion of the transmitted light as scattered light in an amount corresponding to the amount of particulates in the emissions. Purge gas may be supplied adjacent the light supply and the detector to reduce particles in the emissions from coating or otherwise compromising the transmission of light into the emissions and recovery of scattered light from the emissions.

Parks, James E; Partridge, William P

2013-05-28T23:59:59.000Z

394

Particulate matter and heart disease: Evidence from epidemiological studies  

SciTech Connect (OSTI)

The association between particulate matter and heart disease was noted in the mid-nineties of last century when the epidemiological evidence for an association between air pollution and hospital admissions due to cardiovascular disease accumulated and first hypotheses regarding the pathomechanism were formulated. Nowadays, epidemiological studies have demonstrated coherent associations between daily changes in concentrations of ambient particles and cardiovascular disease mortality, hospital admission, disease exacerbation in patients with cardiovascular disease and early physiological responses in healthy individuals consistent with a risk factor profile deterioration. In addition, evidence was found that annual average PM{sub 2.5} exposures are associated with increased risks for mortality caused by ischemic heart disease and dysrhythmia. Thereby, evidence is suggesting not only a short-term exacerbation of cardiovascular disease by ambient particle concentrations but also a potential role of particles in defining patients' vulnerability to acute coronary events. While this concept is consistent with the current understanding of the factors defining patients' vulnerability, the mechanisms and the time-scales on which the particle-induced vulnerability might operate are unknown.

Peters, Annette [GSF-National Research Center for Environment and Health, Institute of Epidemiology, Ingolstaedter Landstr. 1, 85764 Neuherberg (Germany)]. E-mail: peters@gsf.de

2005-09-01T23:59:59.000Z

395

Atmospheric particulate emissions from dry abrasive blasting using coal slag  

SciTech Connect (OSTI)

Coal slag is one of the widely used abrasives in dry abrasive blasting. Atmospheric emissions from this process include particulate matter (PM) and heavy metals, such as chromium, lead, manganese, nickel. Quantities and characteristics of PM emissions depend on abrasive characteristics and process parameters. Emission factors are key inputs to estimate emissions. Experiments were conducted to study the effect of blast pressure, abrasive feed rate, and initial surface contamination on total PM (TPM) emission factors for coal slag. Rusted and painted mild steel surfaces were used as base plates. Blasting was carried out in an enclosed chamber, and PM was collected from an exhaust duct using U.S. Environment Protection Agency source sampling methods for stationary sources. Results showed that there is significant effect of blast pressure, feed rate, and surface contamination on TPM emissions. Mathematical equations were developed to estimate emission factors in terms of mass of emissions per unit mass of abrasive used, as well as mass of emissions per unit of surface area cleaned. These equations will help industries in estimating PM emissions based on blast pressure and abrasive feed rate. In addition, emissions can be reduced by choosing optimum operating conditions. 40 refs., 5 figs., 2 tabs.

Bhaskar Kura; Kalpalatha Kambham; Sivaramakrishnan Sangameswaran; Sandhya Potana [University of New Orleans, New Orleans, LA (United States). Department of Civil and Environmental Engineering

2006-08-15T23:59:59.000Z

396

Characterization of particulate matter deposited in diesel particulate filters: Visual and analytical approach in macro-, micro- and nano-scales  

SciTech Connect (OSTI)

Multi-scale analytical investigations of particulate matter (soot and ash) of two loaded diesel particulate filters (DPF) from (a) a truck (DPF1) and (b) a passenger car (DPF2) reveal the following: in DPF1 (without fuel-borne additives), soot aggregates form an approximately 130-270 {mu}m thick, homogeneous porous cake with pronounced orientation. Soot aggregates consist of 15-30 nm large individual particles exhibiting relatively mature internal nanostructures, however, far from being graphite. Ash aggregates largely accumulate at the outlet part of DPF1, while minor amounts are deposited directly on the channel walls all along the filter length. They consist of crystalline phases with individual particles of sizes down to the nanoscale range. Chemically, the ash consists mainly of Mg, S, Ca, Zn and P, elements encountered in lubricating oil additives. In the passenger car DPF2 (with fuel-borne additives), soot aggregates form an approximately 200-500 {mu}m thick, inhomogeneous porous cake consisting of several superposed layers corresponding to different soot generations. The largest part of the soot cake is composed of unburned, oriented soot aggregates left behind despite repeated regenerations, while a small part constitutes a loose layer with randomly oriented aggregates, which was deposited last and has not seen any regeneration. Fe-oxide particles of micro- to nano-scale sizes, originating from the fuel-borne additive, are often dispersed within the part of the soot cake composed of the unburned soot leftovers. The individual soot nanoparticles in DPF2 are approximately 15-40 nm large and generally less mature than in the truck DPF1. The presence of soot leftovers in DPF2 indicates that the addition of fuel-borne material does not fully compensate for the temperatures needed for complete soot removal. Ash in DPF2 is filling up more than half of the filter volume (at the downstream part) and is dominated by Fe-oxide aggregates, due to the Fe-based fuel-borne additive, but otherwise its chemical composition reflects compounds of lubricating oil additives. (author)

Liati, Anthi; Dimopoulos Eggenschwiler, Panayotis [EMPA, Swiss Federal Laboratories for Materials Testing and Research, Laboratory for I.C. Engines, Duebendorf (Switzerland)

2010-09-15T23:59:59.000Z

397

Airborne observations of methane emissions from rice cultivation in the Sacramento Valley of California  

E-Print Network [OSTI]

, the California Air Resources Board (CARB) greenhouse gas inventory emission rate of 2.7 ? 1010 g CH4/yr is not accounted for in the CARB inventory. Citation: Peischl, J., et al. (2012), Airborne observations of methane California, which include livestock, landfills, wastewater treatment, oil and gas drilling and distribution

Cohen, Ronald C.

398

Effect of sampling height on the concentration of airborne fungal spores  

E-Print Network [OSTI]

and possible sources of air pollution.8 In addition, it is high enough to avoid vandalism and bothering aeroallergens. Airborne fungal spores are commonly collected from the outdoor air at the rooftop level of high respiration level (1.5 m above the ground) and at roof level (12 m height). Methods: Air samples were

Levetin, Estelle

399

Analysis and Design of a Novel Three-Level LLCC Inverter Supplying an Airborne Piezoelectric  

E-Print Network [OSTI]

Analysis and Design of a Novel Three-Level LLCC Inverter Supplying an Airborne Piezoelectric Brake on the investigation of a novel single-phase three-level PWM inverter in the kW power range, feeding a high power multi suit best to the needs of ultrasonic motors has been conducted. A resonant inverter with LLCC

Paderborn, Universität

400

Control of Airborne Wind Energy Systems Based on Nonlinear Model Predictive Control & Moving Horizon Estimation  

E-Print Network [OSTI]

tethered to the ground at a high velocity across the wind direction. Power can be generated by a, the first option is considered. Because it involves a much lighter structure, a major advantage of powerControl of Airborne Wind Energy Systems Based on Nonlinear Model Predictive Control & Moving

Note: This page contains sample records for the topic "airborne particulates pm10" 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

IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY 1 Airborne Wind Energy Based on Dual Airfoils  

E-Print Network [OSTI]

airfoil systems, but they are less advantageous at very large scales. Index Terms--Airborne wind energy Wind Energy (AWE) paradigm proposes to eliminate the structural elements not directly involved in power Wind Energy [17]. Crosswind flight extracts power from the airflow by flying an airfoil tethered

402

DETECTION OF IMPULSE-LIKE AIRBORNE SOUND FOR DAMAGE IDENTIFICATION IN ROTOR BLADES OF WIND TURBINES  

E-Print Network [OSTI]

DETECTION OF IMPULSE-LIKE AIRBORNE SOUND FOR DAMAGE IDENTIFICATION IN ROTOR BLADES OF WIND TURBINES burdens of wind turbines. To detect damage of rotor blades, several research projects focus on an acoustic, rotor blade, wind turbine INTRODUCTION There are several publications of non destructive damage

Boyer, Edmond

403

Airborne MAX-DOAS measurements over California: Testing the NASA OMI tropospheric NO2 product  

E-Print Network [OSTI]

] Airborne Multi-AXis Differential Optical Absorption Spectroscopy (AMAX-DOAS) measurements of NO2, and the agreement was found to be fair (R = 0.97, slope = 1.4 ± 0.1, N = 10). (2) A comparison was performed on the mean of coincident AMAX-DOAS measurements within the area of the corresponding OMI pixels

404

LONG-TERM DETERMINATION OF AIRBORNE RADON PROGENY CONCENTRATIONS USING LR 115 DETECTORS  

E-Print Network [OSTI]

LONG-TERM DETERMINATION OF AIRBORNE RADON PROGENY CONCENTRATIONS USING LR 115 DETECTORS dose in the lung is mainly due to short-lived radon progeny, i.e. 218 Po, 214 Pb, 214 Bi and 214 Po, but not the radon (222 Rn) gas itself. Accordingly, long-term measure- ments of the concentrations of radon progeny

Yu, K.N.

405

The Airborne Aero-Optics Laboratory, AAOL Eric J. Jumpera1  

E-Print Network [OSTI]

and around an aircraft has on a laser projected or received by an optical system. The background also the usefulness of airborne high-energy lasers [1]. The ALL used a carbon-dioxide, gas- dynamic laser; but, the laser's long wavelength (10.6 m) limited its range and intensity on target. From a diffraction

Gordeyev, Stanislav

406

Airborne wear particles railway research group FEM Simulation of train disc brake behavior  

E-Print Network [OSTI]

1 Airborne wear particles railway research group FEM Simulation of train disc brake behavior a modern train disc brake with brake caliper and high speed pads. During braking, a considerable amount. A model of train brake caliper Aim The overall aim of the MSc degree project is to develop a thermoelastic

Haviland, David

407

Measurement of airborne radioactivity from the Fukushima reactor accident in Tokushima, Japan  

E-Print Network [OSTI]

The airborne radioactive isotopes from the Fukushima Daiichi nuclear plan t was measured in Tokushima, western Japan. The continuous monitoring has been carried out in Tokushima. From March 23, 2011 the fission product $^{131}$I was observed. The radioisotopes $^{134}$Cs and $^{137}$Cs were also observed in the beginning of April. However the densities were extremely smaller than the Japanese regulation of radioisotopes.

K. Fushimi; S. Nakayama; M. Sakama; Y. Sakaguchi

2012-10-19T23:59:59.000Z

408

Sizes, graphitic structures and fractal geometry of light-duty diesel engine particulates.  

SciTech Connect (OSTI)

The particulate matter of a light-duty diesel engine was characterized in its morphology, sizes, internal microstructures, and fractal geometry. A thermophoretic sampling system was employed to collect particulates directly from the exhaust manifold of a 1.7-liter turbocharged common-rail direct-injection diesel engine. The particulate samples collected at various engine-operating conditions were then analyzed by using a high-resolution transmission electron microscope (TEM) and an image processing/data acquisition system. Results showed that mean primary particle diameters (dp), and radii of gyration (Rg), ranged from 19.4 nm to 32.5 nm and 77.4 nm to 134.1 nm, respectively, through the entire engine-operating conditions of 675 rpm (idling) to 4000 rpm and 0% to 100% loads. It was also revealed that the other important parameters sensitive to the particulate formation, such as exhaust-gas recirculation (EGR) rate, equivalence ratio, and temperature, affected particle sizes significantly. Bigger primary particles were measured at higher EGR rates, higher equivalence ratios (fuel-rich), and lower exhaust temperatures. Fractal dimensions (D{sup f}) were measured at a range of 1.5 - 1.7, which are smaller than those measured for heavy-duty direct-injection diesel engine particulates in our previous study. This finding implies that the light-duty diesel engine used in this study produces more stretched chain-like shape particles, while the heavy-duty diesel engine emits more spherical particles. The microstructures of diesel particulates were observed at high TEM magnifications and further analyzed by a Raman spectroscope. Raman spectra revealed an atomic structure of the particulates produced at high engine loads, which is similar to that of typical graphite.

Lee, K. O.; Zhu, J.; Ciatti, S.; Choi, M. Y.; Energy Systems; Drexel Univ.

2003-01-01T23:59:59.000Z

409

Exposure information in environmental health research: Current opportunities and future directions for particulate matter, ozone, and toxic air pollutants  

E-Print Network [OSTI]

fine particulates and nitrogen dioxide in the elderly withS.and Jerrett M. Nitrogen dioxide prediction in Southernto particles and nitrogen dioxide in Santiago, Chile.

McKone, Thomas E.

2008-01-01T23:59:59.000Z

410

Fuzzy logic approach to supervised segmentation of forest regions infested by Southern Pine Beetle using color airborne images  

E-Print Network [OSTI]

Digital image processing technique and fuzzy logic approach are used to identify forest areas infested with Southern Pine Beetle, SPB, using normal color airborne imageries in this research. This research will be used as a front end of a larger...

Ng, Kit-Tong

1994-01-01T23:59:59.000Z

411

A fast-time study on increasing the capacity of continuous descent approaches through airborne precision spacing  

E-Print Network [OSTI]

Research Center (LaRC) in Hampton, Virginia, two parallel research efforts have focusedon terminal area research: one is Airborne Precision Spacing (APS), and the other is the Quiet Aircraft Technologies (QAT) project. The APS objective is to increase...

Weitz, Lesley Anne

2005-11-01T23:59:59.000Z

412

DEMONSTRATION OF A FULL-SCALE RETROFIT OF THE ADVANCED HYBRID PARTICULATE COLLECTOR TECHNOLOGY  

SciTech Connect (OSTI)

The Advanced Hybrid Particulate Collector (AHPC), developed in cooperation between W.L. Gore & Associates and the Energy & Environmental Research Center (EERC), is an innovative approach to removing particulates from power plant flue gas. The AHPC combines the elements of a traditional baghouse and electrostatic precipitator (ESP) into one device to achieve increased particulate collection efficiency. As part of the Power Plant Improvement Initiative (PPII), this project was demonstrated under joint sponsorship from the U.S. Department of Energy and Otter Tail Power Company. The EERC is the patent holder for the technology, and W.L. Gore & Associates was the exclusive licensee for this project. The project objective was to demonstrate the improved particulate collection efficiency obtained by a full-scale retrofit of the AHPC to an existing electrostatic precipitator. The full-scale retrofit was installed on an electric power plant burning Powder River Basin (PRB) coal, Otter Tail Power Company's Big Stone Plant, in Big Stone City, South Dakota. The $13.4 million project was installed in October 2002. Project related testing concluded in December 2005. The following Final Technical Report has been prepared for the project entitled ''Demonstration of a Full-Scale Retrofit of the Advanced Hybrid Particulate Collector Technology'' as described in DOE Award No. DE-FC26-02NT41420. The report presents the operation and performance results of the system.

Tom Hrdlicka; William Swanson

2005-12-01T23:59:59.000Z

413

Plasma regenerated particulate trap and NO.sub.x reduction system  

DOE Patents [OSTI]

A non-catalytic two-stage process for removal of NO.sub.x and particulates from engine exhaust comprises a first stage that plasma converts NO to NO.sub.2 in the presence of O.sub.2 and hydrocarbons, and a second stage, which preferably occurs simultaneously with the first stage, that converts NO.sub.2 and carbon soot particles to respective environmentally benign gases that include N.sub.2 and CO.sub.2. By preconverting NO to NO.sub.2 in the first stage, the efficiency of the second stage for NO.sub.x reduction is enhanced while carbon soot from trapped particulates is simultaneously converted to CO.sub.2 when reacting with the NO.sub.2 (that converts to N.sub.2). For example, an internal combustion engine exhaust is connected by a pipe to a chamber where carbon-containing particulates are electrostatically trapped or filtered and a non-thermal plasma converts NO to NO.sub.2 in the presence of O.sub.2 and hydrocarbons. Volatile hydrocarbons (C.sub.x H.sub.y) from the trapped particulates are oxidized in the plasma and the remaining soot from the particulates reacts with the NO.sub.2 to convert NO.sub.2 to N.sub.2, and the soot to CO.sub.2. The nitrogen exhaust components remain in the gas phase throughout the process, with no accompanying adsorption.

Penetrante, Bernardino M. (San Ramon, CA); Vogtlin, George E. (Fremont, CA); Merritt, Bernard T. (Livermore, CA); Brusasco, Raymond M. (Livermore, CA)

2000-01-01T23:59:59.000Z

414

A model for forming airborne synthetic aperture radar images of underground targets  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) from an airborne platform has been proposed for imaging targets beneath the earth`s surface. The propagation of the radar`s energy within the ground, however, is much different than in the earth`s atmosphere. The result is signal refraction, echo delay, propagation losses, dispersion, and volumetric scattering. These all combine to make SAR image formation from an airborne platform much more challenging than a surface imaging counterpart. This report treats the ground as a lossy dispersive half-space, and presents a model for the radar echo based on measurable parameters. The model is then used to explore various imaging schemes, and image properties. Dynamic range is discussed, as is the impact of loss on dynamic range. Modified window functions are proposed to mitigate effects of sidelobes of shallow targets overwhelming deeper targets.

Doerry, A.W.

1994-01-01T23:59:59.000Z

415

Measurement of airborne fission products in Chapel Hill, NC, USA from the Fukushima I reactor accident  

E-Print Network [OSTI]

We present measurements of airborne fission products in Chapel Hill, NC, USA, from 62 days following the March 11, 2011, accident at the Fukushima I Nuclear Power Plant. Airborne particle samples were collected daily in air filters and radio-assayed with two high-purity germanium (HPGe) detectors. The fission products I-131 and Cs-137 were measured with maximum activities of 4.2 +/- 0.6 mBq/m^2 and 0.42 +/- 0.07 mBq/m^2 respectively. Additional activity from I-131, I-132, Cs-134, Cs-136, Cs-137 and Te-132 were measured in the same air filters using a low-background HPGe detector at the Kimballton Underground Research Facility (KURF).

MacMullin, S; Green, M P; Henning, R; Holmes, R; Vorren, K; Wilkerson, J F

2011-01-01T23:59:59.000Z

416

Investigations of release phenomenon of volatile organic compounds and particulates from residual storage chip piles  

SciTech Connect (OSTI)

This paper outlines the method for estimating Particulate Matter and Volatile Organic Compounds (VOCs) emissions from wood handling and storage operations at a pulp mill. Fugitive particulate matter emissions from wood handling and storage operations are due to material load/dropout operations, wind erosion from storage piles and vehicular traffic on paved roads. The particulate matter emissions are a function of a number of variables like windspeed, surface moisture content, material silt content, and number of days of precipitation. Literature review attributes VOC emissions to biological, microbiological, chemical, and physical processes occurring in wood material storage pile. The VOC emissions are from the surface of these piles and the VOC released during retrieval of chips from the pile. VOC emissions are based on the chip throughput, number of turnovers, moisture content and surface area of the pile. The emission factors with the requisite calculation methodology to be utilized for quantifying VOC emissions from chip piles has been discussed in this paper.

Mohan, S.; Nagarkatti, M. [Trinity Consultants, Inc., Baton Rouge, LA (United States)

1996-12-31T23:59:59.000Z

417

Impact of Biodiesel on the Oxidation Kinetics and Morphology of Diesel Particulate  

SciTech Connect (OSTI)

We compare the oxidation characteristics of four different diesel particulates generated with a modern light-duty engine. The four particulates represent engine fueling with conventional ultra-low sulfur diesel (ULSD), biodiesel, and two intermediate blends of these fuels. The comparisons discussed here are based on complementary measurements implemented in a laboratory micro-reactor, including temperature programmed desorption and oxidation, pulsed isothermal oxidation, and BET surface area. From these measurements we have derived models that are consistent with the observed oxidation reactivity differences. When accessible surface area effects are properly accounted for, the oxidation kinetics of the fixed carbon components were found to consistently exhibit an Arrhenius activation energy of 113 6 kJ/mol. Release of volatile carbon from the as-collected particulate appears to follow a temperaturedependent rate law.

Strzelec, Andrea [ORNL] [ORNL; Toops, Todd J [ORNL] [ORNL; Daw, C Stuart [ORNL] [ORNL

2011-01-01T23:59:59.000Z

418

An Analytical Study of Thermophoretic Particulate Deposition in Turbulent Pipe Flows  

SciTech Connect (OSTI)

The presence of a cold surface in non-isothermal pipe flows conveying submicron particles causes thermophoretic particulate deposition. In this study, an analytical method is developed to estimate thermophoretic particulate deposition efficiency and its effect on overall heat transfer coefficient of pipe flows in transition and turbulent flow regimes. The proposed analytical solution has been validated against experiments conducted at Oak Ridge National Laboratory. Exhaust gas carrying submicron soot particles was passed through pipes with a constant wall temperature and various designed boundary conditions to correlate transition and turbulent flow regimes. Prediction of the reduction in heat transfer coefficient and particulate mass deposited has been compared with experiments. The results of the analytical method are in a reasonably good agreement with experiments.

Abarham, Mehdi [University of Michigan; Hoard, John W. [University of Michigan; Assanis, Dennis [University of Michigan; Styles, Dan [Ford Motor Company; Sluder, Scott [ORNL; Storey, John Morse [ORNL

2010-01-01T23:59:59.000Z

419

Device and method for accurately measuring concentrations of airborne transuranic isotopes  

DOE Patents [OSTI]

An alpha continuous air monitor (CAM) with two silicon alpha detectors and three sample collection filters is described. This alpha CAM design provides continuous sampling and also measures the cumulative transuranic (TRU), i.e., plutonium and americium, activity on the filter, and thus provides a more accurate measurement of airborne TRU concentrations than can be accomplished using a single fixed sample collection filter and a single silicon alpha detector. 7 figs.

McIsaac, C.V.; Killian, E.W.; Grafwallner, E.G.; Kynaston, R.L.; Johnson, L.O.; Randolph, P.D.

1996-09-03T23:59:59.000Z

420

Device and method for accurately measuring concentrations of airborne transuranic isotopes  

DOE Patents [OSTI]

An alpha continuous air monitor (CAM) with two silicon alpha detectors and three sample collection filters is described. This alpha CAM design provides continuous sampling and also measures the cumulative transuranic (TRU), i.e., plutonium and americium, activity on the filter, and thus provides a more accurate measurement of airborne TRU concentrations than can be accomplished using a single fixed sample collection filter and a single silicon alpha detector.

McIsaac, Charles V. (Idaho Falls, ID); Killian, E. Wayne (Idaho Falls, ID); Grafwallner, Ervin G. (Arco, ID); Kynaston, Ronnie L. (Blackfoot, ID); Johnson, Larry O. (Pocatello, ID); Randolph, Peter D. (Idaho Falls, ID)

1996-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Geophex Airborne Unmanned Survey System (GAUSS). Topical report, October 1993--March 1995  

SciTech Connect (OSTI)

The objectives of the project are to construct a geophysical sensor system based on a remotely operated model helicopter (ROH) and to evaluate the efficacy of the system for characterization of hazardous environmental sites. Geophex Airborne Unmanned Survey System (GAUSS) is a geophysical survey system that uses a ROH as the survey vehicle. We have selected the ROH because of its advantages over fixed wing and ground based vehicles. Lower air speed and superior maneuverability of the ROH make it better suited for geophysical surveys than a fixed wing model aircraft. The ROH can fly close to the ground, allowing detection of weak or subtle anomalies. Unlike ground based vehicles, the ROH can traverse difficult terrain while providing a stable sensor platform. ROH does not touch the ground during the course of a survey and is capable of functioning over water and surf zones. The ROH has been successfully used in the motion picture industry and by geology companies for payload bearing applications. The only constraint to use of the airborne system is that the ROH must remain visible to the pilot. Obstructed areas within a site can be characterized by relocating the base station to alternate positions. GAUSS consists of a ROH with radio controller, a data acquisition and processing (DAP) system, and lightweight digital sensor systems. The objective of our Phase I research was to develop a DAP and sensors suitable for ROH operation. We have constructed these subsystems and integrated them to produce an automated, hand-held geophysical surveying system, referred to as the ``pre-prototype``. We have performed test surveys with the pre-prototype to determine the functionality of the and DAP and sensor subsystems and their suitability for airborne application. The objective of the Phase II effort will be to modify the existing subsystems and integrate them into an airborne prototype. Efficacy of the prototype for geophysical survey of hazardous sites will then be determined.

NONE

1995-03-01T23:59:59.000Z

422

AIRBORNE, OPTICAL REMOTE SENSING OF METHANE AND ETHANE FOR NATURAL GAS PIPLINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. The third six-month technical report contains a summary of the progress made towards finalizing the design and assembling the airborne, remote methane and ethane sensor. The vendor has been chosen and is on contract to develop the light source with the appropriate linewidth and spectral shape to best utilize the Ophir gas correlation software. Ophir has expanded upon the target reflectance testing begun in the previous performance period by replacing the experimental receiving optics with the proposed airborne large aperture telescope, which is theoretically capable of capturing many times more signal return. The data gathered from these tests has shown the importance of optimizing the fiber optic receiving fiber to the receiving optic and has helped Ophir to optimize the design of the gas cells and narrowband optical filters. Finally, Ophir will discuss remaining project issues that may impact the success of the project.

Jerry Myers

2004-05-12T23:59:59.000Z

423

AIRBORNE, OPTICAL REMOTE SENSING OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. This second six-month technical report summarizes the progress made towards defining, designing, and developing the hardware and software segments of the airborne, optical remote methane and ethane sensor. The most challenging task to date has been to identify a vendor capable of designing and developing a light source with the appropriate output wavelength and power. This report will document the work that has been done to identify design requirements, and potential vendors for the light source. Significant progress has also been made in characterizing the amount of light return available from a remote target at various distances from the light source. A great deal of time has been spent conducting laboratory and long-optical path target reflectance measurements. This is important since it helps to establish the overall optical output requirements for the sensor. It also reduces the relative uncertainty and risk associated with developing a custom light source. The data gathered from the optical path testing has been translated to the airborne transceiver design in such areas as: fiber coupling, optical detector selection, gas filters, and software analysis. Ophir will next, summarize the design progress of the transceiver hardware and software development. Finally, Ophir will discuss remaining project issues that may impact the success of the project.

Jerry Myers

2003-11-12T23:59:59.000Z

424

Method for the Removal of Ultrafine Particulates from an Aqueous Suspension  

SciTech Connect (OSTI)

A method of separating ultra-fine particulate from an aqueous suspension such as a process stream or a waste stream. The method involves the addition of alkali silicate and an organic gelling agent to a volume of liquid, from the respective process or waste stream, to form a gel. The gel then undergoes syneresis to remove water and soluble salts from the gel-containing the particulate, thus, forming a silica monolith. The silica monolith is then sintered to form a hard, nonporous waste form.

Chaiko, David J.; Kopasz, John P.; Ellison, Adam J.G.

1999-03-05T23:59:59.000Z

425

The distribution of dissolved and particulate organic carbon in the southeastern Indian Ocean  

E-Print Network [OSTI]

. rbe rloSxee of NASTI. R OP SCIENCE Decerabex 1976 Na)or Subject: OueanoStaPby THE DISTRIBUTION OF DISSOLVED AND PARTICULATE ORGANIC CARBON IN THE SOUTHEASTERN INDIAN OCEAN A Thesis by HUSSEIN ANWAR ABD EL-REHEIM (Co-Chairman of ommittee) (Co...-C irman of Commit e) (Head of Department) (Member) r (Member) December 1976 ABSTtlACT The Distribution of Dissolved and Particulate Organic Carbon In the Southeastern Indian Ocean. (December 1976) Hussein Anwan Abd El-Reheim B. Sc. , Alexandria...

Abd El-Reheim, Hussein Anwar

1976-01-01T23:59:59.000Z

426

Method for the removal of ultrafine particulates from an aqueous suspension  

DOE Patents [OSTI]

A method of separating ultra-fine particulates from an aqueous suspension such as a process stream or a waste stream. The method involves the addition of alkali silicate and an organic gelling agent to a volume of liquid, from the respective process or waste stream, to form a gel. The gel then undergoes syneresis to remove water and soluble salts from the gel containing the particulates, thus, forming a silica monolith. The silica monolith is then sintered to form a hard, nonporous waste form.

Chaiko, David J. (Naperville, IL); Kopasz, John P. (Bolingbrook, IL); Ellison, Adam J. G. (Corning, NY)

2000-01-01T23:59:59.000Z

427

Prevention of Air Pollution from Ships: Diesel Engine Particulate Emission Reduction via Lube-Oil-Consumption Control  

E-Print Network [OSTI]

1 Prevention of Air Pollution from Ships: Diesel Engine Particulate Emission Reduction via Lube the effectiveness of reducing engine lube-oil consumption as a means to reduce particulate pollutants. In this study-lube-oil-consumption designs, for example, could be an option with existing engines. AIR POLLUTION FROM SHIPS The motivation

Brown, Alan

428

Dissolved and particulate aluminum in the Columbia River and coastal waters of Oregon and Washington: behavior in near-field and far-field plumes  

E-Print Network [OSTI]

1 Dissolved and particulate aluminum in the Columbia River and coastal waters of Oregon) and particulate (leachable and total) aluminum was examined in the Columbia River and estuary, in near Influence on Shelf Ecosystems (RISE) cruise of May/June 2006. Dissolved and particulate aluminum (Al

Hickey, Barbara

429

Fabrication and evaluation of SMA-silicone rubber continuous-fiber and particulate composites  

E-Print Network [OSTI]

of an SMA particulate-elastomeric matrix composite. The embedding of Ni-Ti SMA wire actuators into flexible silicone rubber rods can affect the composite structural behavior by causing the rods to deflect upon heating and shape recovery of the SMA wires...

deBlonk, Brett Jeffrey

1995-01-01T23:59:59.000Z

430

Atmospheric Environment 38 (2004) 57455758 Characterization of urban and rural organic particulate  

E-Print Network [OSTI]

of the urban organic particulate are similar to those of internal combustion engine lubricating oil. Jaynec , Arthur A. Garfortha , Shao-Meng Lie , Douglas R. Worsnopc a Department of Chemical Engineering and toluene with Pearson's r values of 0.76, 0.71, 0.79 and 0.69, respectively, suggesting that combustion

Jimenez, Jose-Luis

431

Estimating particulate matter health impact related to the combustion of different fossil fuels  

E-Print Network [OSTI]

Estimating particulate matter health impact related to the combustion of different fossil fuels generated a web map service that allows to access information on fuel dependent health effects due a simulation. Combined with a dedicated emission inventory PM2.5 maps specified by fuel type were generated

Paris-Sud XI, Université de

432

Z .Marine Chemistry 67 1999 3342 Differences in seawater particulate organic carbon concentration  

E-Print Network [OSTI]

of the organic carbon retained by a glass-fiber filter against the volume filtered. The interceptZ .Marine Chemistry 67 1999 33­42 Differences in seawater particulate organic carbon concentration August 1998; accepted 11 May 1999 Abstract Z . Z . ZParticulate organic carbon POC data collected

433

DDT RESIDUES IN SEAWATER AND PARTICULATE MATTER IN THE CALIFORNIA CURRENT SYSTEM  

E-Print Network [OSTI]

DDT RESIDUES IN SEAWATER AND PARTICULATE MATTER IN THE CALIFORNIA CURRENT SYSTEM JAMES L. COX in the California current system were analyzed for DDT residues. DDT residue concentrations in whole seawater are discussed in relation to mechanisms of land-sea DDT residue transfer. DDT residue concentrations

434

A physical model of particulate wash-off from rough impervious surfaces  

E-Print Network [OSTI]

; accepted 23 January 2006 Summary Current urban water quality models rely on empirical, catchment of particulate available. Current urban stormwater models such as SWMM and HSPF are still based on this original urban storm runoff pollution. There are few published explanations of physical wash- off mechanisms

Walter, M.Todd

435

Version 11/5/99 Summary of Chapter 9: Li2O Particulate Flow Concept  

E-Print Network [OSTI]

/breeding material facing directly to the plasma. The desirable material properties of the coolant/breeding material converting efficiency system. For comparison, the vapor pressure of lithium is 40 torr at the same to the reactor system through a feed tube by gravitational force. After the particulate enters the reactor

California at Los Angeles, University of

436

Ecological Effects and In-situ Detection of Particulate Contaminants in Aqueous Environments  

E-Print Network [OSTI]

investigates crude oil toxicity as a particulate suspension, suitability of in-situ instrumentation to measure crude oil suspensions, and the applicability of using acoustic backscatter to measure suspended solids and sub-surface oil droplet suspension... and Discussion................................................................... 132 x CHAPTER Page Suspended solids characterization......................................... 132 Acoustic backscatter depth profiles...

Fuller, Christopher Byron

2012-07-16T23:59:59.000Z

437

Respiratory disease and particulate air pollution in Santiago Chile: Contribution of erosion particles from fine sediments  

E-Print Network [OSTI]

August) that make atmospheric conditions highly vulnerable, preventing polluting particles in the airCommentary Respiratory disease and particulate air pollution in Santiago Chile: Contribution pollution Santiago Erosion Sedimentation a b s t r a c t Air pollution in Santiago is a serious problem

438

Deep-Sea Research II 50 (2003) 655674 Determining true particulate organic carbon: bottles, pumps  

E-Print Network [OSTI]

Deep-Sea Research II 50 (2003) 655­674 Determining true particulate organic carbon: bottles, pumps or by in situ filtration with pumps and analyzing the filters. The concentrations measured by these two methods-latitude waters. Here we report that the ratio of bottle POC to pump POC ranged between 20 and 200 in the Ross Sea

Hansell, Dennis

439

Conduction in Multiphase ParticulateFibrous Networks Simulations and Experiments on Li-ion Anodes  

E-Print Network [OSTI]

promising Li-ion battery technologies incorporate nanoarchitectured carbon networks, typically in the form electronically February 7, 2003. Several promising Li-ion battery technologies incorporate nanoarchitecturedConduction in Multiphase Particulate?Fibrous Networks Simulations and Experiments on Li-ion Anodes

Sastry, Ann Marie

440

A FUNCTIONAL DATA ANALYSIS APPROACH FOR EVALUATING TEMPORAL PHYSIOLOGIC RESPONSES TO PARTICULATE MATTER  

E-Print Network [OSTI]

, including air pollutants such as ozone and particulate matter. Bradycardia and hypothermia are often Hypertensive rats (n=35; 8­9/group) were intratracheally instilled with a bolus dose of saline (control that effects between the control and high dose group persisted for at least 48 hr. The applicability of FDA

Lee, Chihoon

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Next Generation Non-particulate Dry Nonwoven Pad for Chemical Warfare Agent Decontamination  

SciTech Connect (OSTI)

New, non-particulate decontamination materials promise to reduce both military and civilian casualties by enabling individuals to decontaminate themselves and their equipment within minutes of exposure to chemical warfare agents or other toxic materials. One of the most promising new materials has been developed using a needlepunching nonwoven process to construct a novel and non-particulate composite fabric of multiple layers, including an inner layer of activated carbon fabric, which is well-suited for the decontamination of both personnel and equipment. This paper describes the development of a composite nonwoven pad and compares efficacy test results for this pad with results from testing other decontamination systems. The efficacy of the dry nonwoven fabric pad was demonstrated specifically for decontamination of the chemical warfare blister agent bis(2-chloroethyl)sulfide (H or sulfur mustard). GC/MS results indicate that the composite fabric was capable of significantly reducing the vapor hazard from mustard liquid absorbed into the nonwoven dry fabric pad. The mustard adsorption efficiency of the nonwoven pad was significantly higher than particulate activated carbon (p=0.041) and was similar to the currently fielded US military M291 kit (p=0.952). The nonwoven pad has several advantages over other materials, especially its non-particulate, yet flexible, construction. This composite fabric was also shown to be chemically compatible with potential toxic and hazardous liquids, which span a range of hydrophilic and hydrophobic chemicals, including a concentrated acid, an organic solvent and a mild oxidant, bleach.

Ramkumar, S S; Love, A; Sata, U R; Koester, C J; Smith, W J; Keating, G A; Hobbs, L; Cox, S B; Lagna, W M; Kendall, R J

2008-05-01T23:59:59.000Z

442

High-heat-flux removal by phase-change fluid and particulate flow  

SciTech Connect (OSTI)

A new concept based on particulate flow in which either or both the particulates and the fluid could undergo phase changes is proposed. The presence of particulates provides not only a mechanism for additional heat removal through phase change but also the potential for increasing the rate of heat transfer by enhancing convection through surface region/bulk [open quotes]mixing[close quotes], by enhancing radiation, particularly for high-temperature cases; and for the case of multiphase fluid, by enhancing the boiling process. One particularly interesting coolant system based on this concept is [open quotes]subcooled boiling water-ice particulate[close quotes] flow. A preliminary analysis of this coolant system is presented, the results of which indicate that such a coolant system is better applied for cooling of relatively small surface areas with high local heat fluxes, where a conventional cooling system would come short of providing the required heat removal at acceptable coolant pressure levels. 14 refs., 8 figs.

Gorbis, Z.R.; Raffray, A.R.; Abdou, M.A. (Univ. of California, Los Angeles (United States))

1993-07-01T23:59:59.000Z

443

Assessing the effect of stocking density on fugitive PM10 emissions from cattle feedyards  

E-Print Network [OSTI]

. 30 Table 4. Sampling Event Information, October 1998 . Table 5. Sampling Event Information, December 1998. . . . . . 3 I . . . . 32 Table 6. Sampling Event Information, March 1999 34 Table 7. Sampling Event Information, June/July 1999. 37 Table... I APPENDIX j . . . . 227 . . . . 301 VITA . 306 LIST OF FIGURES Page Figure 1. Sampling Array, August 17 ? 19, 1998. . Figure 2. Sampling Array, August 20, 1998. . Figure 3. Sampling Array, October 1998 Figure 4. Sampling Array, December...

Romanillos, Arturo

2000-01-01T23:59:59.000Z

444

A continuous emission monitor for quantitative measurement of PM10 emissions from stationary sources  

E-Print Network [OSTI]

of the manuscript. ~ Mr. Carlos Ortiz, for his help throughout the testing of the first prototype. His perseverance and fortitude were greatly appreciated. ~ Mr. Bill McMillan, for his timely and innovative approaches to challenging machine work. ~ Mr. Randy... at Kennecott Utah Copper 1 4 7 . 11 LITERATURE REVIEW. . 13 Aerosol Sampling in Stacks and Ducts. Aerosol Transport. Beta Attenuation Mass Monitors. . 13 . 15 . 17 DEVELOPMENT OF FIRST PROTOTYPE . 20 Theoretical Analysis of Parncle Losses...

Haglund,John Steven

2000-01-01T23:59:59.000Z

445

AIRBORNE, OPTICAL REMOTE SENSING OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. This six-month technical report summarizes the progress for each of the proposed tasks, discusses project concerns, and outlines near-term goals. Ophir has completed a data survey of two major natural gas pipeline companies on the design requirements for an airborne, optical remote sensor. The results of this survey are disclosed in this report. A substantial amount of time was spent on modeling the expected optical signal at the receiver at different absorption wavelengths, and determining the impact of noise sources such as solar background, signal shot noise, and electronic noise on methane and ethane gas detection. Based upon the signal to noise modeling and industry input, Ophir finalized the design requirements for the airborne sensor, and released the critical sensor light source design requirements to qualified vendors. Responses from the vendors indicated that the light source was not commercially available, and will require a research and development effort to produce. Three vendors have responded positively with proposed design solutions. Ophir has decided to conduct short path optical laboratory experiments to verify the existence of methane and absorption at the specified wavelength, prior to proceeding with the light source selection. Techniques to eliminate common mode noise were also evaluated during the laboratory tests. Finally, Ophir has included a summary of the potential concerns for project success and has established future goals.

Jerry Myers

2003-05-13T23:59:59.000Z

446

INTERPRETATION OF AIRBORNE ELECTROMAGNETIC AND MAGNETIC DATA IN THE 600 AREA  

SciTech Connect (OSTI)

As part of the 200-PO-1 Phase I geophysical surveys, Fugro Airborne Surveys was contracted to collect airborne electromagnetic (EM) and magnetic surveys of the Hanford Site 600 Area. Two helicopter survey systems were used with the HeliGEOTEM{reg_sign} time domain portion flown between June 19th and June 20th, 2008, and the RESOLVE{reg_sign} frequency domain portion was flown from June 29th to July 1st, 2008. Magnetic data were acquired contemporaneously with the electromagnetic surveys using a total-field cesium vapor magnetometer. Approximately 925 line kilometers (km) were flown using the HeliGEOTEM{reg_sign} II system and 412 line kilometers were flown using the RESOLVE{reg_sign} system. The HeliGEOTEM system has an effective penetration of roughly 250 meters into the ground and the RESOLVE system has an effective penetration of roughly 60 meters. Acquisition parameters and preliminary results are provided in SGW-39674, Airborne Electromagnetic Survey Report, 200-PO-1 Groundwater Operable Unit, 600 Area, Hanford Site. Airborne data are interpreted in this report in an attempt to identify areas of likely preferential groundwater flow within the aquifer system based on the presence of paleochannels or fault zones. The premise for the interpretation is that coarser-grained intervals have filled in scour channels created by episodic catastrophic flood events during the late Pleistocene. The interpretation strategy used the magnetic field anomaly data and existing bedrock maps to identify likely fault or lineament zones. Combined analysis of the magnetic, 60-Hz noise monitor, and flight-altitude (radar) data were used to identify zones where EM response is more likely due to cultural interference and or bedrock structures. Cross-sectional and map view presentations of the EM data were used to identify more electrically resistive zones that likely correlate with coarser-grained intervals. The resulting interpretation identifies one major northwest-southeast trending preferential flowpath with several minor units running along a similar trend. This presumed path of preferential flow is compared with the tritium concentration levels observed for the 600 Area. Analysis of the magnetic field data shows the location of potential bedrock faults and lineaments which may influence the horizontal and vertical flow of water. Faults lying within, or in the vicinity of preferential groundwater flow paths may allow flow into or out of the otherwise confined basalt layers.

CUMMINS GD

2010-11-11T23:59:59.000Z

447

TUDE DU MCANISME D'MISSION DE TROIS PARTICULES 03B1 DANS LES RACTIONS 11B(p, 303B1) 1,98 MeV et 10B(d, 303B1) 1 MeV  

E-Print Network [OSTI]

rsultats exprimentaux obtenus dans cette raction par la technique de l'enre- gistrement des particules

Boyer, Edmond

448

Particulate matter exposure during pregnancy is associated with birth weight, but not gestational age, 1962-1992: a cohort study  

E-Print Network [OSTI]

HS, Maynard RL: Air pollution and health London: Academic;the effects of air pollution on health in the United KingdomD: Particulate air pollution and fetal health: a systematic

2012-01-01T23:59:59.000Z

449

An assessment of particulate organic carbon to thorium-234 ratios in the ocean and their impact on the application  

E-Print Network [OSTI]

An assessment of particulate organic carbon to thorium-234 ratios in the ocean and their impact February 2006 Abstract Thorium-234 is increasingly used as a tracer of ocean particle flux, primarily

Coppola, Laurent

450

Health physics manual of good practices for the prompt detection of airborne plutonium in the workplace  

SciTech Connect (OSTI)

This manual provides guidance to US Department of Energy (DOE) facilities on the prompt detection of airborne plutonium in the workplace. Information is first given to aid in detection systems that will function effectively in various workplaces. Steps in designing a system are covered: its general requirements, the plotting of workplace sources of plutonium, and methods of determining workplace airflow patterns. Guidance is provided on the proper numbers and locations of probe sites, the orientation of probes for representative sampling, and the mixture of stationary and portable probes. Recommendations for delivery in sampling systems include examination of particle loss and self-absorption problems, methods of eliminating air leakage in the system, and optimization of decontamination capabilities. System flow rate, requirements in a collection medium, burial loss and pressure drop, and prudent frequency of renewing the collection medium are among air sampling considerations covered. After a discussion of controlling airflow and of vacuum sources and system backups, the checkpoints to ensure system reliability are listed. The manual then discusses instrument specifications that provide correct airborne plutonium concentrations and reliably activate alarms. Focusing on the interrelationship of all components, essential factors in instrument reliability are addressed: the regulatory lower limit of detection and performance specifications of detectors and filters, maintenance and calibration requirements, and features of commonly used plutonium air-sampling instruments. Finally, the manual advises on establishing a documentation program to archive and evaluate the performance of a plutonium air-sampling program.

Not Available

1988-07-01T23:59:59.000Z

451

Flight Testing of an Advanced Airborne Natural Gas Leak Detection System  

SciTech Connect (OSTI)

ITT Industries Space Systems Division (Space Systems) has developed an airborne natural gas leak detection system designed to detect, image, quantify, and precisely locate leaks from natural gas transmission pipelines. This system is called the Airborne Natural Gas Emission Lidar (ANGEL) system. The ANGEL system uses a highly sensitive differential absorption Lidar technology to remotely detect pipeline leaks. The ANGEL System is operated from a fixed wing aircraft and includes automatic scanning, pointing system, and pilot guidance systems. During a pipeline inspection, the ANGEL system aircraft flies at an elevation of 1000 feet above the ground at speeds of between 100 and 150 mph. Under this contract with DOE/NETL, Space Systems was funded to integrate the ANGEL sensor into a test aircraft and conduct a series of flight tests over a variety of test targets including simulated natural gas pipeline leaks. Following early tests in upstate New York in the summer of 2004, the ANGEL system was deployed to Casper, Wyoming to participate in a set of DOE-sponsored field tests at the Rocky Mountain Oilfield Testing Center (RMOTC). At RMOTC the Space Systems team completed integration of the system and flew an operational system for the first time. The ANGEL system flew 2 missions/day for the duration for the 5-day test. Over the course of the week the ANGEL System detected leaks ranging from 100 to 5,000 scfh.

Dawn Lenz; Raymond T. Lines; Darryl Murdock; Jeffrey Owen; Steven Stearns; Michael Stoogenke

2005-10-01T23:59:59.000Z

452

Apparatus and method for removing particulate deposits from high temperature filters  

DOE Patents [OSTI]

A combustion of a fuel-air mixture is used to provide a high-temperature and high-pressure pulse of gaseous combustion products for the back-flush cleaning of ceramic filter elements contained in a barrier filter system and utilized to separate particulates from particulate-laden process gases at high temperature and high pressure. The volume of gaseous combustion products provided by the combustion of the fuel-air mixture is preferably divided into a plurality of streams each passing through a sonic orifice and conveyed to the open end of each filter element as a high pressure pulse which passes through the filter elements and dislodges dust cake supported on a surface of the filter element.

Nakaishi, Curtis V. (Morgantown, WV); Holcombe, Norman T. (McMurray, PA); Micheli, Paul L. (Morgantown, WV)

1992-01-01T23:59:59.000Z

453

Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol  

DOE Patents [OSTI]

A process is described for the production of a pollutant-free particulate carbon (i.e., a substantially ash-, sulfur- and nitrogen-free carbon) from carbonaceous feedstocks. The basic process involves de-oxygenating one of the gas streams formed in a cyclic hydropyrolysis-methane pyrolysis process in order to improve conversion of the initial carbonaceous feedstock. De-oxygenation is effected by catalytically converting carbon monoxide, carbon dioxide, and hydrogen contained in one of the pyrolysis gas streams, preferably the latter, to a methanol co-product. There are thus produced two products whose use is known per se, viz., a substantially pollutant-free particulate carbon black and methanol. These products may be admixed in the form of a liquid slurry of carbon black in methanol. 3 figs.

Steinberg, M.; Grohse, E.W.

1995-06-27T23:59:59.000Z

454

Process for the conversion of carbonaceous feedstocks to particulate carbon and methanol  

DOE Patents [OSTI]

A process for the production of a pollutant-free particulate carbon (i.e., a substantially ash-, sulfur- and nitrogen-free carbon) from carbonaceous feedstocks. The basic process involves de-oxygenating one of the gas streams formed in a cyclic hydropyrolysis-methane pyrolysis process in order to improve conversion of the initial carbonaceous feedstock. De-oxygenation is effected by catalytically converting carbon monoxide, carbon dioxide, and hydrogen contained in one of the pyrolysis gas streams, preferably the latter, to a methanol co-product. There are thus produced two products whose use is known per se, viz., a substantially pollutant-free particulate carbon black and methanol. These products may be admixed in the form of a liquid slurry of carbon black in methanol.

Steinberg, Meyer (Melville, NY); Grohse, Edward W. (Port Jefferson, NY)

1995-01-01T23:59:59.000Z

455

Method of producing particulate-reinforced composites and composties produced thereby  

DOE Patents [OSTI]

A process for producing particle-reinforced composite materials through utilization of an in situ reaction to produce a uniform dispersion of a fine particulate reinforcement phase. The process includes forming a melt of a first material, and then introducing particles of a second material into the melt and subjecting the melt to high-intenisty acoustic vibration. A chemical reaction initiates between the first and second materials to produce reaction products in the melt. The reaciton products comprise a solide particulate phase, and the high-intensity acoustic vibration fragments and/or separates the reaction products into solid particles that are dispersed in the melt and are smaller than the particles of the second material. Also encompassed are particles-reinforced composite materials produced by such a process.

Han, Qingyou; Liu, Zhiwei

2013-12-24T23:59:59.000Z

456

Particulate immersed boundary method for complex fluid-particle interaction problems with heat transfer  

E-Print Network [OSTI]

In our recent work [H. Zhang, F.X. Trias, A. Oliva, D. Yang, Y. Tan, Y. Sheng. PIBM: Particulate immersed boundary method for fluid-particle interaction problems. Powder Technology. 272(2015), 1-13.], a particulate immersed boundary method (PIBM) for simulating fluid-particle multiphase flow was proposed and assessed in both two- and three-dimensional applications. In this study, the PIBM was extended to solve thermal interaction problems between spherical particles and fluid. The Lattice Boltzmann Method (LBM) was adopted to solve the fluid flow and temperature fields, the PIBM was responsible for the non-slip velocity and temperature boundary conditions at the particle surface, and the kinematics and trajectory of the solid particles were evaluated by the Discrete Element Method (DEM). Four case studies were implemented to demonstrate the capability of the current coupling scheme. Firstly, numerical simulation of natural convection in a two-dimensional square cavity with an isothermal concentric annulus was...

Zhang, Hao; Trias, F Xavier; Yu, Aibing; Tan, Yuanqiang; Oliva, Assensi

2015-01-01T23:59:59.000Z

457

8th i-CIPEC8th International Conference/Exhibition on Combustion, Incineration/Pyrolysis, Emission and Climate Change  

E-Print Network [OSTI]

Assessment of Air Pollution ·Economy and Policy Life Cycle Assessment Cost-Benefit Analysis Environmental. Dioxins, PAHs and Other POPs Emission Control Particulate Matters(PM2.5 / PM10) And Heavy Metal Emission

Shepard, Kenneth

458

04/14/2011 ATOC -3500 Ryan Sanford Wildfire Emissions  

E-Print Network [OSTI]

billion (annually) 2. Particulate matter (PM10) a. Health hazard b. Visibility/ air quality 3. Dioxins/ Furans dibenzo-p-dioxins and dibenzofurans a. React relatively fast with OH radicals (k~10^-12 cm3

Toohey, Darin W.

459

Hydrogen Vehicles and Refueling Infrastructure in India  

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

in taxis, three-wheelers etc Increase the number of buses to at least 10,000 Impact on air quality Particulate pollution stabilised PM10 at ITO Traffic Intersection (March...

460

RESEARCH AND ANALYSIS Comparison of Life-Cycle  

E-Print Network [OSTI]

-output life-cycle assessment (EIO-LCA) model; and SimaPro software equipped with the Franklin database. EIO-LCA model estimated for emis- sions of particulate matter less than 10 micrograms (PM10) resulting from wind

Illinois at Chicago, University of

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Development of a size-fractionating stack sampler for collection of particulate matter  

E-Print Network [OSTI]

information for the design of a cleaning system. The six major pollutants established by the U. S. Environmental Protection Agency (EPA) are carbon monoxide, nitrogen dioxide, sulfur oxides, hydrocarbons, photochemical oxidants, and particulate matter... descr1bed. In 1971 Monsanto Enviro-Chem Systems, Inc. ( 18) developed a novel cyclone preseparator with an inverted discharge tube for use w1th in- ertial impactors. In 1973, Ancel (19) developed a cyclone preseparator for inert1al impactors...

1983-01-01T23:59:59.000Z

462

Pourquoi trouver un marqueur atmosphrique d'exposition aux particules diesel ?  

E-Print Network [OSTI]

Pourquoi trouver un marqueur atmosphérique d'exposition aux particules diesel ? Dominique LAFON rôle cancérigène possible des émissions diesel a suscité de nombreuses études depuis 20 ans. Nous avons sérieux ne nous permet d'incriminer plus les émissions des véhicules à moteur diesel que ceux à moteur

Boyer, Edmond

463

Particulate removal from high-temperature, high-pressure combustion gases  

SciTech Connect (OSTI)

The adoption by utilities of coal-fired pressurized fluidized-bed/combined cycle combustion systems for electric power generation depends to a large extent on the development of an efficient and economic cleanup system for the high-temperature, high-pressure combustion gases. For adequate turbine protection, these gases must be sufficiently cleaned to bring particulate erosion and alkali vapor corrosion to a level acceptable to gas turbine manufacturers. At the same time, the total particulate content of the flue gas must be reduced to the limit set by the Environmental Protection Agency. To accomplish particulate removal from a dust-laden gas stream, a number of separation devices have been developed. These include conventional and augmented cyclones; porous metal, fiber, fabric, and ceramic filters, as well as fixed, moving, and fluidized-bed granular filters; and electrostatic precipitators. Several other novel separation devices have been proposed and developed to different degrees such as: contactors using molten salt, metal, or glass, dry scrubbers, acoustic agglomerators, as well as cyclones and granular-bed filters with external electrostatic or magnetic fields. Some of these separation devices in various combinations have been tested in process development units or in hot gas simulators by ANL, CPC, CURL, C-W, Exxon, GE, Westinghouse, etc. The results are discussed and evaluated for PFBC applications.

Henry, R.F.; Saxena, S.C.; Podolski, W.F.

1983-10-01T23:59:59.000Z

464

Particulate Control Device (PCD) Testing at the Power Systems Development Facility, Wilsonville, Alabama  

SciTech Connect (OSTI)

One of the U.S. Department of Energy`s (DOE`s) objectives overseen by the Morgantown Energy Technology Center (METC) is to test systems and components for advanced coal-based power generation systems, including integrated gasification combined cycle (IGCC), pressurized fluidized-bed combustion (PFBC), and integrated gasification/fuel cell (IGFC) systems. Stringent particulate requirements for fuel gas for both combustion turbines and fuel cells that are integral to these systems. Particulates erode and chemically attack the blade surfaces in turbines, and cause blinding of the electrodes in fuel cells. Filtration of the hot, high-pressure, gasified coal is required to protect these units. Filtration can be accomplished by first cooling the gas, but the system efficiency is reduced. High-temperature, high-pressure, particulate control devices (PCDs) need to be developed to achieve high efficiency and to extend the lifetime of downstream components to acceptable levels. Demonstration of practical high-temperature PCDs is crucial to the evolution of advanced, high-efficiency, coal-based power generation systems. The intent at the Power Systems Development Facility (PSDF) is to establish a flexible test facility that can be used to (1) develop advanced power system components, such as high-temperature, high-pressure PCDs; (2) evaluate advanced power system configurations and (3) assess the integration and control issues of these advanced power systems.

Longanbach, J.R.

1995-12-01T23:59:59.000Z

465

Detecting Moving Objects in Airborne Forward Looking InfraRed Sequences Alexander Strehl and J. K. Aggarwal \\Lambda  

E-Print Network [OSTI]

looking infra­red (FLIR) image sequences taken from an airborne, moving platform. Ego­motion effects classification system. 1 Introduction 1.1 Motivation Forward looking infra­red (FLIR) images are frequently used static FLIR images. A comprehensive recent review by Ratches, Wal­ \\Lambda This research was supported

Strehl, Alexander

466

Detecting Moving Objects in Airborne Forward Looking Infra-Red Sequences Alexander Strehl and J. K. Aggarwal  

E-Print Network [OSTI]

-red (FLIR) image sequences taken from an airborne, moving platform. Ego-motion effects are removed through system. 1 Introduction 1.1 Motivation Forward looking infra-red (FLIR) images are frequently used static FLIR images. A comprehensive recent review by Ratches, Wal- £ This research was supported in part

Strehl, Alexander

467

Long-term determination of airborne radon progeny concentrations using LR 115 solid-state nuclear track detectors  

E-Print Network [OSTI]

Long-term determination of airborne radon progeny concentrations using LR 115 solid-state nuclear. Introduction The radon-related absorbed dose in the lung is mainly due to short-lived radon progeny, i.e., 218-term measurements of the concentrations of radon progeny or the equilibrium factor F, among other information

Yu, K.N.

468

EMAG2: A 2arc min resolution Earth Magnetic Anomaly Grid compiled from satellite, airborne, and marine magnetic  

E-Print Network [OSTI]

grid for the World Digital Magnetic Anomaly Map. The resolution has been improved from 3 arc min to 2EMAG2: A 2arc min resolution Earth Magnetic Anomaly Grid compiled from satellite, airborne, I-19020 Fezzano, Italy [1] A global Earth Magnetic Anomaly Grid (EMAG2) has been compiled from

Mller, Dietmar

469

Cloud Model Evaluation Using Radiometric Measurements from the Airborne Multiangle Imaging Spectroradiometer (AirMISR)  

SciTech Connect (OSTI)

Detailed information on cloud properties is needed to vigorously test retrieval algorithms for satellite and ground-based remote sensors. The inherent complexity of clouds makes this information difficult to obtain from observations alone and cloud resolving models are often used to generating synthetic datasets that can be used as proxies for real data. We test the ability of a cloud resolving model to reproduce cloud structure in a case study of low-level clouds observed by the Earth Observing System (EOS) validation program in north central Oklahoma on March 3, 2000. A three-dimensional radiative transfer model is applied to synthetic cloud properties generated by a high-resolution three-dimensional cloud model in order to simulate the top of atmosphere radiances. These synthetic radiances are then compared with observations from the airborne Multiangle Imaging SpectroRadiometer (AirMISR), flown on the NASA ER-2 high-altitude aircraft.

Ovtchinnikov, Mikhail; Marchand, Roger T.

2007-03-01T23:59:59.000Z

470

Airborne Multisensor Pod System, Arms control and nonproliferation technologies: Second quarter 1995  

SciTech Connect (OSTI)

This issue focuses on the Airborne Multisensor Pod System (AMPS) which is a collaboration of many of the DOE national laboratories to provide a scientific environment to research multiple sensors and the new information that can be derived from them. The bulk of the research has been directed at nonproliferation applications, but it has also proven useful in environmental monitoring and assessment, and land/water management. The contents of this issue are: using AMPS technology to detect proliferation and monitor resources; combining multisensor data to monitor facilities and natural resources; planning a AMPS mission; SAR pod produces images day or night, rain or shine; MSI pod combines data from multiple sensors; ESI pod will analyze emissions and effluents; and accessing AMPS information on the Internet.

Alonzo, G.M.; Sanford, N.M. [eds.] [eds.

1995-01-01T23:59:59.000Z

471

An overview of airborne radioactive emissions at Los Alamos National Laboratory  

SciTech Connect (OSTI)

Strict control is essential over any emissions of radioactivity in the ventilation exhaust from facilities where radioactive materials may become airborne. At Los Alamos National Laboratory there are 87 stacks exhausting ventilation air to the environment from operations with a potential for radioactive emissions. These stacks cover the diverse operations at all Laboratory facilities where radioactive materials are handled and require continuous sampling/monitoring to detect levels of contamination. An overview is presented of the operations, associated ventilation exhaust cleanup systems, and analysis of the emissions. In keeping with the as-low-as-reasonably-achievable concept, emissions of radionuclides are reduced whenever practicable. A specific example describing the reduction of emissions from the linear accelerator beam stop area at the Los Alamos Meson Physics Facility during 1985 by a factor of 8 over previous emissions is presented.

Guevara, F.A.; Dvorak, R.F.

1987-01-01T23:59:59.000Z

472

Quality Assurance Project Plan for radioactive airborne emissions data compilation and reporting  

SciTech Connect (OSTI)

This Quality Assurance Project Plan addresses the quality assurance requirements for compiling data from radioactie aiborne emissions. These data will be reported to the US Environmental Protection Agency, the US Department of Energy, and the Washington State Department of Health. Hanford Site radioactive airborne emissions are reported to the US Environmental Protection Agency in compliance with Title 40, Protection of the Environment, Code of Federal Regulations, Part 61, ``National Emissions Standards for Hazardous Air Pollutants , ``Subpart H, ``National Emissions Standards for Emissions of Radionuclides Other Than Radon From Department of Energy Facilities`` (EPA 1989a). Reporting to US Department of Energy is performed in compliance with requirements of US Department of Energy Order 5400.1, General Environmental Protection Program (DOE 1988a).

Burris, S.A.; Thomas, S.P.

1994-02-01T23:59:59.000Z

473

Geophex Airborne Unmanned Survey System (GAUSS). Topical report, October 1993--September 1996  

SciTech Connect (OSTI)

This document is a Final Technical Report that describes the results of the Geophex Airborne Unmanned Survey System (GAUSS) research project. The objectives were to construct a geophysical data acquisition system that uses a remotely operated unmanned aerial vehicle (UAV) and to evaluate its effectiveness for characterization of hazardous environmental sites. The GAUSS is a data acquisition system that mitigates the potential risk to personnel during geophysical characterization of hazardous or radioactive sites. The fundamental basis of the GAUSS is as follows: (1) an unmanned survey vehicle carries geophysical sensors into a hazardous location, (2) the pilot remains outside the hazardous site and operates the vehicle using radio control, (3) geophysical measurements and their spatial locations are processed by an automated data-acquisition system which displays data on an off-site monitor in real-time, and (4) the pilot uses the display to direct the survey vehicle for complete site coverage. The objective of our Phase I research was to develop a data acquisition and processing (DAP) subsystem and geophysical sensors suitable for UAV deployment. We integrated these two subsystems to produce an automated, hand-held geophysical surveying system. The objective of the Phase II effort was to modify the subsystems and integrate them into an airborne prototype. The completed GAUSS DAP system consists of a UAV platform, a laser tracking and ranging subsystem, a telemetry subsystem, light-weight geophysical sensors, a base-station computer (BC), and custom-written survey control software (SCS). We have utilized off-the-shelf commercial products, where possible, to reduce cost and design time.

NONE

1998-12-31T23:59:59.000Z

474

Mesoscale Simulations of Particulate Flows with Parallel Distributed Lagrange Multiplier Technique  

SciTech Connect (OSTI)

Fluid particulate flows are common phenomena in nature and industry. Modeling of such flows at micro and macro levels as well establishing relationships between these approaches are needed to understand properties of the particulate matter. We propose a computational technique based on the direct numerical simulation of the particulate flows. The numerical method is based on the distributed Lagrange multiplier technique following the ideas of Glowinski et al. (1999). Each particle is explicitly resolved on an Eulerian grid as a separate domain, using solid volume fractions. The fluid equations are solved through the entire computational domain, however, Lagrange multiplier constrains are applied inside the particle domain such that the fluid within any volume associated with a solid particle moves as an incompressible rigid body. Mutual forces for the fluid-particle interactions are internal to the system. Particles interact with the fluid via fluid dynamic equations, resulting in implicit fluid-rigid-body coupling relations that produce realistic fluid flow around the particles (i.e., no-slip boundary conditions). The particle-particle interactions are implemented using explicit force-displacement interactions for frictional inelastic particles similar to the DEM method of Cundall et al. (1979) with some modifications using a volume of an overlapping region as an input to the contact forces. The method is flexible enough to handle arbitrary particle shapes and size distributions. A parallel implementation of the method is based on the SAMRAI (Structured Adaptive Mesh Refinement Application Infrastructure) library, which allows handling of large amounts of rigid particles and enables local grid refinement. Accuracy and convergence of the presented method has been tested against known solutions for a falling sphere as well as by examining fluid flows through stationary particle beds (periodic and cubic packing). To evaluate code performance and validate particle contact physics algorithm, we performed simulations of a representative experiment conducted at the University of California at Berkley for pebble flow through a narrow opening.

Kanarska, Y

2010-03-24T23:59:59.000Z

475

Inertia-friction welding of particulate-reinforced aluminum matrix composites  

SciTech Connect (OSTI)

Aluminum metal-matrix composites (Al-MMC) are rapidly becoming materials of choice for many aerospace, automotive, recreational sports, and microelectronic applications. The attractive features of these materials include high specific strength and stiffness, a low coefficient of thermal expansion and enhanced wear characteristics relative to monolithic aluminum alloys. The effective engineering application of Al-MMC will commonly require their joining beth to themselves, to dissimilar Al-MMC, and to monolithic aluminum alloys. In the present work, dissimilar-alloy inertia-friction welds were produced between a 6061-T6 Al-MMC tube reinforced with l0 v/o Al{sub x}O{sub 3} particles (W6A.l0A-T6) and a modified A356 case MMC bar reinforced with 20 v/o SiC particles (F3S.20S), or a monolithic 6061-T6511 aluminum alloy bar. In Phase I, a fractional-factorial test matrix was statistically designed and performed to evaluate the effects of flywheel speed and axial pressure on the weld integrity, microstructure, hardness, tensile and torsion strengths and fracture behavior. In Phase 2, the effects of pre-weld machining of the solid bar on weld alignment and mechanical properties were evaluated. inertia-friction welding was shown to be effective for the joining of alumina particulate-reinforced composites to monolithic aluminum and to SiC-particulate reinforced aluminum. High-integrity joints exhibiting a defect-free joint interface with varying degrees of base alloy intermixing were produced at optimum parameter settings. Tensile and torsional strength joint efficiencies for the alumina-particulate MMC to monolithic aluminum alloy welds exceeded 80% and 75%, respectively, with tensile strength maximized with high axial pressure and flywheel speed, and torsional strength maximized at both medium and high levels of flywheel speed and axial pressure.

Cola, M.J.; Baeslack, W.A. III; Kou, M.

1994-12-31T23:59:59.000Z

476

Acute changes in pulse pressure in relation to constituents of particulate air pollution in elderly persons  

SciTech Connect (OSTI)

An increased pulse pressure (difference between systolic and diastolic blood pressure) suggests aortic stiffening. The objective of this study was to examine the acute effects of both particulate matter (PM) mass and composition on blood pressure, among elderly persons. We carried out a panel study in persons living in elderly homes in Antwerp, Belgium. We recruited 88 non-smoking persons, 70% women with a mean age of 83 years (standard deviation: 5.2). Blood pressure was measured and a blood sample was collected on two time points, which were chosen so that there was an exposure contrast in ambient PM exposure. The elemental content of the collected indoor and outdoor PM{sub 2.5} (particulate matter with an aerodynamic diameter <2.5 {mu}m) mass concentration was measured. Oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) on outdoor PM{sub 10} (particulate matter with an aerodynamic diameter <10 {mu}m) were measured. Each interquartile range increase of 20.8 {mu}g/m Superscript-Three in 24-h mean outdoor PM{sub 2.5} was associated with an increase in pulse pressure of 4.0 mmHg (95% confidence interval: 1.8-6.2), in persons taking antihypertensive medication (n=57), but not in persons not using antihypertensive medication (n=31) (p for interaction: 0.02). Vanadium, iron and nickel contents of PM{sub 2.5} were significantly associated with systolic blood pressure and pulse pressure, among persons on antihypertensive medication. Similar results were found for indoor concentrations. Of the oxy-PAHs, chrysene-5,6-dione and benzo[a]pyrene-3,6-dione were significantly associated with increases in systolic blood pressure and pulse pressure. In elderly, pulse pressure was positively associated with acute increases in outdoor and indoor air pollution, among persons taking antihypertensive medication. These results might form a mechanistic pathway linking air pollution as a trigger of cardiovascular events.

Jacobs, Lotte [Occupational and Environmental Medicine, Unit of Lung Toxicology, K.U.Leuven, Leuven (Belgium)] [Occupational and Environmental Medicine, Unit of Lung Toxicology, K.U.Leuven, Leuven (Belgium); Buczynska, Anna [Departement of Chemistry, UA, Wilrijk (Belgium)] [Departement of Chemistry, UA, Wilrijk (Belgium); Walgraeve, Christophe [Research group EnVOC, Department of Sustainable Organic Chemistry and Technology, UGent, Gent (Belgium)] [Research group EnVOC, Department of Sustainable Organic Chemistry and Technology, UGent, Gent (Belgium); Delcloo, Andy [Royal Meteorological Institute, Brussels (Belgium)] [Royal Meteorological Institute, Brussels (Belgium); Potgieter-Vermaak, Sanja [Departement of Chemistry, UA, Wilrijk (Belgium) [Departement of Chemistry, UA, Wilrijk (Belgium); Molecular Science Institute, School of Chemistry, University of Witwatersrand, Johannesburg (South Africa); Division of Chemistry and Environmental Science, Manchester Metropolitan University, Manchester (United Kingdom); Van Grieken, Rene [Departement of Chemistry, UA, Wilrijk (Belgium)] [Departement of Chemistry, UA, Wilrijk (Belgium); Demeestere, Kristof; Dewulf, Jo; Van Langenhove, Herman [Research group EnVOC, Department of Sustainable Organic Chemistry and Technology, UGent, Gent (Belgium)] [Research group EnVOC, Department of Sustainable Organic Chemistry and Technology, UGent, Gent (Belgium); De Backer, Hugo [Royal Meteorological Institute, Brussels (Belgium)] [Royal Meteorological Institute, Brussels (Belgium); Nemery, Benoit, E-mail: ben.nemery@med.kuleuven.be [Occupational and Environmental Medicine, Unit of Lung Toxicology, K.U.Leuven, Leuven (Belgium)] [Occupational and Environmental Medicine, Unit of Lung Toxicology, K.U.Leuven, Leuven (Belgium); Nawrot, Tim S. [Occupational and Environmental Medicine, Unit of Lung Toxicology, K.U.Leuven, Leuven (Belgium) [Occupational and Environmental Medicine, Unit of Lung Toxicology, K.U.Leuven, Leuven (Belgium); Centre for Environmental Sciences, Hasselt University, Diepenbeek (Belgium)

2012-08-15T23:59:59.000Z

477

Results of Self-Absorption Study on the Versapor 3000 Filters for Radioactive Particulate Air Sampling  

SciTech Connect (OSTI)

Since the mid-1980s the Pacific Northwest National Laboratory (PNNL) has used a value of 0.85 as a correction factor for the self absorption of activity of particulate radioactive air samples. More recently, an effort was made to evaluate the current particulate radioactive air sample filters (Versapor 3000) used at PNNL for self absorption effects. There were two methods used in the study, 1) to compare the radioactivity concentration by direct gas-flow proportional counting of the filter to the results obtained after acid digestion of the filter and counting again by gas-flow proportional detection and 2) to evaluate sample filters by high resolution visual/infrared microscopy to determine the depth of material loading on or in the filter fiber material. Sixty samples were selected from the archive for acid digestion in the first method and about 30 samples were selected for high resolution visual/infrared microscopy. Mass loading effects were also considered. From the sample filter analysis, large error is associated with the average self absorption factor, however, when the data is compared directly one-to-one, statistically, there appears to be good correlation between the two analytical methods. The mass loading of filters evaluated was <0.2 mg cm-2 and was also compared against other published results. The microscopy analysis shows the sample material remains on the top of the filter paper and does not imbed into the filter media. Results of the microscopy evaluation lead to the conclusion that there is not a mechanism for significant self absorption. The overall conclusion is that self-absorption is not a significant factor in the analysis of filters used at PNNL for radioactive air stack sampling of radionuclide particulates and that an applied correction factor is conservative in determining overall sample activity. A new self absorption factor of 1.0 is recommended.

Barnett, J. M.

2008-08-22T23:59:59.000Z

478

Electrically resistive coating for remediation (regeneration) of a diesel particulate filter and method  

DOE Patents [OSTI]

A resistively heated diesel particulate filter (DPF). The resistively heated DPF includes a DPF having an inlet surface and at least one resistive coating on the inlet surface. The at least one resistive coating is configured to substantially maintain its resistance in an operating range of the DPF. The at least one resistive coating has a first terminal and a second terminal for applying electrical power to resistively heat up the at least one resistive coating in order to increase the temperature of the DPF to a regeneration temperature. The at least one resistive coating includes metal and semiconductor constituents.

Phelps, Amanda C. (Malibu, CA); Kirby, Kevin K. (Calabasas Hills, CA); Gregoire, Daniel J. (Thousand Oaks, CA)

2012-02-14T23:59:59.000Z

479

Solid Phase Characterization of Tank 241-AY-102 Annulus Space Particulate  

SciTech Connect (OSTI)

The Special Analytical Studies Group at the 222-S Laboratory (222-S) examined the particulate recovered from a series of samples from the annular space of tank 241-AY-102 (AY-102) using solid phase characterization (SPC) methods. These include scanning electron microscopy (SEM) using the ASPEX?1 scanning electron microscope, X-ray diffraction (XRD) using the Rigaku?2 MiniFlex X-ray diffractometer, and polarized light microscopy (PLM) using the Nikon?3 Eclipse Pol optical microscope. The SEM is equipped with an energy dispersive X-ray spectrometer (EDS) to provide chemical information.

Cooke, G. A.

2013-01-30T23:59:59.000Z

480

Three-dimensional computer modeling of particulate flow around dust monitors  

SciTech Connect (OSTI)

SOLA-DM is a three-dimensional finite-difference computer code designed to model the dynamics of an incompressible fluid and the transport of discrete particulate material around obstacles impervious to flow. The numerical methods used in this code are described. SOLA-DM was used to predict the particle flux sampled by the 10-mm Dorr-Oliver Cyclone and MINIRAM dust monitors. Various geometric and dynamic variations of monitor and airflow combinations were tested. The code predictions are shown in computer-generated graphic plots.

Nichols, B.D.; Gregory, W.S.

1987-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "airborne particulates pm10" 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

Total Particulate Matter Air Sampling Data (TEOM) from Los Alamos National Laboratory  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

LANL measures the total particulate mass concentration in the air on a routine basis as well as during incidents that may affect ambient air. The collected data is added to the Air Quality Index (AQI). AQI is an index for reporting daily air quality. It tells you how clean or polluted your air is, and what associated health effects might be a concern for you. The AQI focuses on health effects you may experience within a few hours or days after breathing polluted air. EPA calculates the AQI for five major air pollutants regulated by the Clean Air Act.

482

Airborne protected military satellite communications : analysis of open-loop pointing and closed-loop tracking with noisy platform attitude information  

E-Print Network [OSTI]

U.S. military assets' increasing need for secure global communications has led to the design and fabrication of airborne satellite communication terminals that operate under protected security protocol. Protected transmission ...

Deike, William D

2010-01-01T23:59:59.000Z

483

A comparative study of collection efficiencies using 0.80 and 1.2 micrometer pore size filters in evaluating airborne asbestos dust  

E-Print Network [OSTI]

A COMPARATIVE STUDY OF COLLECTION EFFICIENCIES USING O. RO AND 1. 2 MICROMETER PORE SIZE FILTERS IN EVALUATING AIRBORNE ASBESTOS DUST A Thesis by GRADY LYNN HOLT Submitted to the Graduate College of' Texas A&M University in partial... fulfillment of the requirement for the degree of MASTER OF SCIENCE August 1974. Major Subject: Industrial Hygiene A COMPARATIVE . TUDY OF COLLECTION EFFICIENCIES USING O. BO AND 1. 2 MICROMETER PORE SIZE FILTERS IN EVALUATING AIRBORNE ASBESTOS DUST A...

Holt, Grady Lynn

1974-01-01T23:59:59.000Z

484

Diesel Emission Control -- Sulfur Effects (DECSE) Program; Phase I Interim Data Report No. 4: Diesel Particulate Filters -- Final Report  

SciTech Connect (OSTI)

The Diesel Emission Control-Sulfur Effects (DECSE) is a joint government/industry program to determine the impact of diesel fuel sulfur levels on emission control systems whose use could lower emissions of nitrogen oxides (NOx) and particulate matter (PM) from on-highway trucks in the 2002--2004 model years. Phase 1 of the program was developed with the following objectives in mind: (1) evaluate the effects of varying the level of sulfur content in the fuel on the emission reduction performance of four emission control technologies; and (2) measure and compare the effects of up to 250 hours of aging on selected devices for multiple levels of fuel sulfur content. This is the fourth and final report for the DPF test program and covers the effect of diesel sulfur level on: a catalyzed diesel particulate filter (CDPF), and a continuously regenerating diesel particulate filter (CR-DPF).

DOE; ORNL; NREL; EMA; MECA

2000-01-15T23:59:59.000Z

485

Measurement of airborne fission products in Chapel Hill, NC, USA from the Fukushima Dai-ichi reactor accident  

E-Print Network [OSTI]

We present measurements of airborne fission products in Chapel Hill, NC, USA, from 62 days following the March 11, 2011, accident at the Fukushima Dai-ichi nuclear power plant. Airborne particle samples were collected daily in air filters and radio-assayed with two high-purity germanium (HPGe) detectors. The fission products I-131 and Cs-137 were measured with maximum activities of 4.2 +/- 0.6 mBq/m^3 and 0.42 +/- 0.07 mBq/m^3 respectively. Additional activity from I-131, I-132, Cs-134, Cs-136, Cs-137 and Te-132 were measured in the same air filters using a low-background HPGe detector at the Kimballton Underground Research Facility (KURF).

S. MacMullin; G. K. Giovanetti; M. P. Green; R. Henning; R. Holmes; K. Vorren; J. F. Wilkerson

2012-10-03T23:59:59.000Z

486

Fugitive SO{sub 2} and particulate emissions from a smelter complex  

SciTech Connect (OSTI)

Emissions released into the local air shed from industrial facilities typically fall into one of two categories, namely point or fugitive sources. The first refers to emissions released directly through stacks or similar devices designed to direct or control emissions. These emissions are readily measured with the aid of standard stack sampling methods or techniques. The latter refers to emissions released into the atmosphere without control of flow or quantities that cannot be measured directly or easily using standard methods. As part of Falconbridge`s efforts to minimize the environmental impact on the community, a fugitive emission monitoring program was designed and implemented to quantify SO{sub 2} and particulate emissions during routine process operations at the Smelter Plant. The monitoring program consisted of simultaneous and continuous temperature and velocity measurements along with continuous SO{sub 2} monitoring and semi-continuous particulate measurements at 8 locations along the Roof Monitor. These measurements were made over 6 days, 24 hours per day. The emission data were correlated with process information and activities to statistically determine the contribution of each process to the emission inventory.

Ciccone, A. [BOVAR Environmental, Toronto, Ontario (Canada); Storbeck, J. [Falconbridge Ltd., Ontario (Canada)

1997-12-31T23:59:59.000Z

487

Loading and Regeneration Analysis of a Diesel Particulate Filter with a Radio Frequency-Based Sensor  

SciTech Connect (OSTI)

Accurate knowledge of diesel particulate filter (DPF) loading is critical for robust and efficient operation of the combined engine-exhaust aftertreatment system. Furthermore, upcoming on-board diagnostics regulations require on-board technologies to evaluate the status of the DPF. This work describes the application of radio frequency (RF) based sensing techniques to accurately measure DPF soot levels and the spatial distribution of the accumulated material. A 1.9L GM turbo diesel engine and a DPF with an RF-sensor were studied. Direct comparisons between the RF measurement and conventional pressure-based methods were made. Further analysis of the particulate matter loading rates was obtained with a mass-based soot emission measurement instrument (TEOM). Comparison with pressure drop measurements show the RF technique is unaffected by exhaust flow variations and exhibits a high degree of sensitivity to DPF soot loading and good dynamic response. Additional computational and experimental work further illustrates the spatial resolution of the RF measurements. Based on the experimental results, the RF technique shows significant promise for improving DPF control enabling optimization of the combined engine-aftertreatment system for improved fuel economy and extended DPF service life.

Sappok, Alex [Filter Sensing Technologies] [Filter Sensing Technologies; Prikhodko, Vitaly Y [ORNL] [ORNL; Parks, II, James E [ORNL

2010-01-01T23:59:59.000Z

488

Continuous hourly monitoring of inhalable particulates in ambient air near a multi-site petrochemical complex  

SciTech Connect (OSTI)

In March 1997, a co-operative of 12 refineries and petrochemical facilities operating in the Sarnia, Ontario area commissioned an inhalable particulate (PM{sub 10}) study to complement their comprehensive ongoing ambient air survey. This paper reviews the hourly data collected between March 1, 1997 and February 28, 1998. The monitors were located at existing air monitoring sites (selected on the basis of the local prevailing wind directions) situated north and south of the industrial sector. TEOM continuous particulate monitors fitted with PM{sub 10} inlets were used. For a three month period a second TEOM fitted with a PM{sub 2.5} inlet was located at one of the sites. The TEOM data as well as wind speed, direction, VOCs and other traditional air parameters were collected by a central computer/data acquisition system. Hourly and daily averages were calculated and related to wind speed and direction and other parameters. Directional, diurnal and seasonal patterns for PM{sub 10} are examined in this paper.

Munro, T.S.; Brooks, W.R.

1999-07-01T23:59:59.000Z

489

The distribution of particulate matter in the Equatorial and Subtropical South Atlantic Ocean: evidence for sources, transport and sinks of particles  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Advection and Resuspension Associated with Boundaries. . . . . . . . . . . 71 The Brazil Basin. . 71 The Angola Basin. 74 Particulate Matter Associated with the Oxygen Minimum. . . . . . . . . . . 76 Agreement with Previous Work. . . 80... include primary production, aggregation, dissolution, diffusion, gravitational settling, upwelling, boundary layer mixing, and the resuspension and advection of sediments. For many elements involved in biogeochemical cycles, particulate matter serves...

Berglund, Bret Lawrence

1989-01-01T23:59:59.000Z

490

Direct Characterization of Airborne Particles Associated with Arsenic-rich Mine Tailings: Particle Size Mineralogy and Texture  

SciTech Connect (OSTI)

Windblown and vehicle-raised dust from unvegetated mine tailings can be a human health risk. Airborne particles from As-rich abandoned Au mine tailings from Nova Scotia, Canada have been characterized in terms of particle size, As concentration, As oxidation state, mineral species and texture. Samples were collected in seven aerodynamically fractionated size ranges (0.5-16 {micro}m) using a cascade impactor deployed at three tailings fields. All three sites are used for recreational activities and off-road vehicles were racing on the tailings at two mines during sample collection. Total concentrations of As in the <8 {micro}m fraction varied from 65 to 1040 ng/m{sup 3} of air as measured by proton-induced X-ray emission (PIXE) analysis. The same samples were analysed by synchrotron-based microfocused X-ray absorption near-edge spectroscopy ({micro}XANES) and X-ray diffraction ({micro}XRD) and found to contain multiple As-bearing mineral species, including Fe-As weathering products. The As species present in the dust were similar to those observed in the near-surface tailings. The action of vehicles on the tailings surface may disaggregate material cemented with Fe arsenate and contribute additional fine-grained As-rich particles to airborne dust. Results from this study can be used to help assess the potential human health risks associated with exposure to airborne particles from mine tailings.

M Corriveau; H Jamieson; M Parsons; J Campbell; A Lanzirotti

2011-12-31T23:59:59.000Z

491

Airborne gamma-ray spectrometer and magnetometer survey: Susanville quadrangle, California. Final report  

SciTech Connect (OSTI)

An airborne high sensitivity gamma-ray spectrometer and magnetometer survey was conducted over ten (10) areas over northern California and southwestern Oregon. These include the 2/sup 0/ x 1/sup 0/ NTMS quadrangles of Roseburg, Medford, Weed, Alturas, Redding, Susanville, Ukiah, and Chico along with the 1/sup 0/ x 2/sup 0/ areas of the Coos Bay quadrangle and the Crescent City/Eureka areas combined. This report discusses the results obtained over the Susanville, California, map area. Traverse lines were flown in an east-west direction at a line spacing of six (6) miles. Tie lines were flown north-south approximately eighteen (18) miles apart. A total of 16,880.5 line miles of geophysical data were acquired, compiled, and interpreted during the survey, of which 1642.8 line miles are in this quadrangle. The purpose of this study is to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States.

Not Available

1981-05-01T23:59:59.000Z

492

Airborne gamma-ray spectrometer and magnetometer survey, Medford Quadrangle Oregon. Final report  

SciTech Connect (OSTI)

An airborne high sensitivity gamma-ray spectrometer and magnetometer survey was conducted over ten (10) areas over northern California and southwestern Oregon. These include the 2/sup 0/ x 1/sup 0/ NTMS quadrangles of Roseburg, Medford, Weed, Alturas, Redding, Susanville, Ukiah, and Chico along with the 1/sup 0/ x 2/sup 0/ areas of the Coos Bay quadrangle and the Crescent City/Eureka areas combined. This report discusses the results obtained over the Medford, Oregon, map area. Traverse lines were flown in an east-west direction at a line spacing of three miles. Tie lines were flown north-south approximately twelve miles apart. A total of 16,880.5 line miles of geophysical data were acquired, compiled, and interpreted during the survey, of which 2925 line miles are in this quadrangle. The purpose of this study is to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States.

Not Available

1981-04-01T23:59:59.000Z

493

Airborne gamma-ray spectrometer and magnetometer survey: Chico quadrangle, California. Final report  

SciTech Connect (OSTI)

An airborne high sensitivity gamma-ray spectrometer and magnetometer survey was conducted over ten (10) areas over northern California and southwestern Oregon. These include the 2/sup 0/ x 1/sup 0/ NTMS quadrangles of Roseburg, Medford, Weed, Alturas, Redding, Susanville, Ukiah, and Chico along with the 1/sup 0/ x 2/sup 0/ areas of the Coos Bay quadrangle and the Crescent City/Eureka areas combined. This report discusses the results obtained over the Chico, California, map area. Traverse lines were flown in an east-west direction at a line spacing of three. Tie lines were flown north-south approximately twelve miles apart. A total of 16,880.5 line miles of geophysical data were acquired, compiled, and interpreted during the survey, of which 3026.4 line miles are in the quadrangle. The purpose of this study is to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States.

Not Available

1981-05-01T23:59:59.000Z

494

Airborne gamma-ray spectrometer and magnetometer survey, Roseburg Quadrangle, Oregon. Final report  

SciTech Connect (OSTI)

An airborne high sensitivity gamma-ray spectrometer and magnetometer survey was conducted over ten (10) areas over northern California and southwestern Oregon. These include the 2/sup 0/ x 1/sup 0/ NTMS quadrangles of Roseburg, Medford, Weed, Alturas, Redding, Susanville, Ukiah, and Chico along with the 1/sup 0/ x 2/sup 0/ areas of the Coos Bay quadrangle and the Crescent City/Eureka areas combined. This report discusses the results obtained over the Roseburg, Oregon, map area. Traverse lines were flown in an east-west direction at a line spacing of six (6) miles. Tie lines were flown north-south approximately eighteen (18) miles apart. A total of 16,880.5 line miles of geophysical data were acquired, compiled, and interpreted during the survey, of which 1596 line miles are in this quadrangle. The purpose of this study is to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States.

Not Available

1981-03-01T23:59:59.000Z

495

Sieveless particle size distribution analysis of particulate materials through computer vision  

SciTech Connect (OSTI)

This paper explores the inconsistency of length-based separation by mechanical sieving of particulate materials with standard sieves, which is the standard method of particle size distribution (PSD) analysis. We observed inconsistencies of length-based separation of particles using standard sieves with manual measurements, which showed deviations of 17 22 times. In addition, we have demonstrated the falling through effect of particles cannot be avoided irrespective of the wall thickness of the sieve. We proposed and utilized a computer vision with image processing as an alternative approach; wherein a user-coded Java ImageJ plugin was developed to evaluate PSD based on length of particles. A regular flatbed scanner acquired digital images of particulate material. The plugin determines particles lengths from Feret's diameter and width from pixel-march method, or minor axis, or the minimum dimension of bounding rectangle utilizing the digital images after assessing the particles area and shape (convex or nonconvex). The plugin also included the determination of several significant dimensions and PSD parameters. Test samples utilized were ground biomass obtained from the first thinning and mature stand of southern pine forest residues, oak hard wood, switchgrass, elephant grass, giant miscanthus, wheat straw, as well as Basmati rice. A sieveless PSD analysis method utilized the true separation of all particles into groups based on their distinct length (419 639 particles based on samples studied), with each group truly represented by their exact length. This approach ensured length-based separation without the inconsistencies observed with mechanical sieving. Image based sieve simulation (developed separately) indicated a significant effect (P < 0.05) on number of sieves used in PSD analysis, especially with non-uniform material such as ground biomass, and more than 50 equally spaced sieves were required to match the sieveless all distinct particles PSD analysis. Results substantiate that mechanical sieving, owing to handling limitations and inconsistent length-based separation of particles, is inadequate in determining the PSD of non-uniform particulate samples. The developed computer vision sieveless PSD analysis approach has the potential to replace the standard mechanical sieving. The plugin can be readily extended to model (e.g., Rosin Rammler) the PSD of materials, and mass-based analysis, while providing several advantages such as accuracy, speed, low cost, automated analysis, and reproducible results.

Igathinathane, C. [Mississippi State University (MSU); Pordesimo, L. O. [Mississippi State University (MSU); Columbus, Eugene P [ORNL; Batchelor, William D [ORNL; Sokhansanj, Shahabaddine [ORNL

2009-05-01T23:59:59.000Z

496

Effects of Sampling Conditions on the Size Distribution of Fine Particulate Matter Emitted from a Pilot-Scale  

E-Print Network [OSTI]

Effects of Sampling Conditions on the Size Distribution of Fine Particulate Matter Emitted from complex because the dilution ratio influences both the coagulation rate and gas-to- particle conversion because of their ability to scatter and absorb light and also because they act as cloud condensation

Stanier, Charlie

497

PII S0016-7037(01)00632-9 Preservation of particulate non-lithogenic uranium in marine sediments  

E-Print Network [OSTI]

PII S0016-7037(01)00632-9 Preservation of particulate non-lithogenic uranium in marine sediments. Previous studies have shown that PNU is regenerated completely prior to burial of particles in sediments margin regions or in anoxic basins. Here we evaluate the preservation of PNU in ocean margin sediments

van Geen, Alexander

498

Calcium-Sensitive Particulate Guanylyl Cyclase as a Modulator of cAMP in Olfactory Receptor Neurons  

E-Print Network [OSTI]

Calcium-Sensitive Particulate Guanylyl Cyclase as a Modulator of cAMP in Olfactory Receptor Neurons cyclases by calcium and a guanylyl cyclase-activating protein (GCAP). cGMP thus formed serves to augment cyclase, limiting the cGMP signal. These data demonstrate the exis- tence of a regulatory loop in which c

Palczewski, Krzysztof

499

Effective thermal conductivity of two-phase functionally graded particulate H. M. Yin, G. H. Paulino,a  

E-Print Network [OSTI]

, a continuous trade-off of fracture toughness and high thermal conductivity of metals is made with ceramic of the ceramic portions of FGMs. The effective thermal properties in the gradation direction are es- sentialEffective thermal conductivity of two-phase functionally graded particulate composites H. M. Yin, G

Paulino, Glaucio H.

500

Demolition of High-Rise Public Housing Increases Particulate Matter Air Pollution in Communities of High-Risk Asthmatics  

E-Print Network [OSTI]

) air pollution, which may ad- versely affect the respiratory health of nearby residents. DemolitionDemolition of High-Rise Public Housing Increases Particulate Matter Air Pollution in Communities of High-Risk Asthmatics Samuel Dorevitch Division of Environmental and Occupational Health Sciences

Illinois at Chicago, University of