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Note: This page contains sample records for the topic "ground level ozone" 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

Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring Instrument  

E-Print Network [OSTI]

Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring; published 28 August 2008. [1] We present an approach to infer ground-level nitrogen dioxide (NO2), Ground-level nitrogen dioxide concentrations inferred from the satellite-borne Ozone Monitoring

Martin, Randall

2

Reducing the contribution of the power sector to ground-level ozone pollution : an assessment of time-differentiated pricing of nitrogen oxide emissions  

E-Print Network [OSTI]

Nitrogen oxide (NOx) is a prevalent air pollutant across the United States and a requisite precursor for tropospheric (ground-level) ozone formation. Both pollutants significantly impact human health and welfare, so National ...

Craig, Michael T. (Michael Timothy)

2014-01-01T23:59:59.000Z

3

INTERRELAITONS BETWEEN VARIABILITY OF GROUND-LEVEL OZONE AND LAND COVER CHANGE  

E-Print Network [OSTI]

ozone monitoring stations in Connecticut and Rohde Island were used for the analysis. The monitoring stations were classified into different categories based on their locations and land cover characteristics. Cars and gasoline-burning engines are large sources of VOCs. VOCs also come from consumer products

Wang, Y.Q. "Yeqiao"

4

E-Print Network 3.0 - air pollutants ozone Sample Search Results  

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

1 Global Ozone Project Ozone Formation in Summary: , power plants and industry all emit air pollution that forms ground-level ozone. Ozone is a primary... Stratospheric and...

5

Effect of Ventilation Strategies on Residential Ozone Levels  

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

Effect of Ventilation Strategies on Residential Ozone Levels Effect of Ventilation Strategies on Residential Ozone Levels Title Effect of Ventilation Strategies on Residential Ozone Levels Publication Type Journal Article LBNL Report Number LBNL-5889E Year of Publication 2012 Authors Walker, Iain S., and Max H. Sherman Journal Building and Environment Volume 59 Start Page 456 Pagination 456-465 Date Published 01/2013 Keywords ashrae standard 62,2, filtration, infiltration, mechanical ventilation, ozone, simulation Abstract Elevated outdoor ozone levels are associated with adverse health effects. Because people spend the vast majority of their time indoors, reduction in indoor levels of ozone of outdoor origin would lower population exposures and might also lead to a reduction in ozone---associated adverse health effects. In most buildings, indoor ozone levels are diminished with respect to outdoor levels to an extent that depends on surface reactions and on the degree to which ozone penetrates the building envelope. Ozone enters buildings from outdoors together with the airflows that are driven by natural and mechanical means, including deliberate ventilation used to reduce concentrations of indoor---generated pollutants. When assessing the effect of deliberate ventilation on occupant health one should consider not only the positive effects on removing pollutants of indoor origin but also the possibility that enhanced ventilation might increase indoor levels of pollutants originating outdoors. This study considers how changes in residential ventilation that are designed to comply with ASHRAE Standard 62.2 might influence indoor levels of ozone. Simulation results show that the building envelope can contribute significantly to filtration of ozone. Consequently, the use of exhaust ventilation systems is predicted to produce lower indoor ozone concentrations than would occur with balanced ventilation systems operating at the same air---exchange rate. We also investigated a strategy for reducing exposure to ozone that would deliberately reduce ventilation rates during times of high outdoor ozone concentration while still meeting daily average ventilation requirements.

6

Ground-based zenith sky abundances and in situ gas cross sections for ozone and nitrogen dioxide  

E-Print Network [OSTI]

Ground-based zenith sky abundances and in situ gas cross sections for ozone and nitrogen dioxide, in situ ambient absorption gas cell mea- surements for ozone and nitrogen dioxide, and ground-based zenith for ozone and nitrogen dioxide that are retrieved from measured spectra of the zenith sky

Dirksen, Ruud

7

E-Print Network 3.0 - ambient ozone levels Sample Search Results  

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

level ozone. Lesson 2: Ozone Formation... , power plants and industry all emit air pollution that forms ... Source: Royer, Dana - Department of Earth and Environmental Sciences,...

8

Nitrogen management is essential to prevent tropical oil palm plantations from causing ground-level  

E-Print Network [OSTI]

Nitrogen management is essential to prevent tropical oil palm plantations from causing ground-level ozone pollution C. N. Hewitta,1 , A. R. MacKenziea , P. Di Carlob , C. F. Di Marcoc , J. R. Dorseyd , MCentre for Ecology and Hydrology, Penicuik, Edinburgh EH26 0QB, United Kingdom; dSchool of Earth, Atmospheric

9

Weekday and Weekend Air Pollutant Levels in Ozone Problem Areas...  

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

Ambient Ozone Formation as a Function of NOx Reductions Summary and Implications for Air Quality Impacts DOE's Studies of WeekdayWeekend Ozone Pollution in Southern...

10

Ozone levels in passenger cabins of commercial aircraft on North American  

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

Ozone levels in passenger cabins of commercial aircraft on North American Ozone levels in passenger cabins of commercial aircraft on North American and transoceanic routes Title Ozone levels in passenger cabins of commercial aircraft on North American and transoceanic routes Publication Type Journal Article Year of Publication 2008 Authors Bhangar, Seema, Shannon Cowlin, Brett C. Singer, Richard G. Sextro, and William W. Nazaroff Journal Environmental Science and Technology Volume 42 Issue 11 Pagination 3938-43 Abstract Ozone levels in airplane cabins, and factors that influence them, were studied on northern hemisphere commercial passenger flights on domestic U.S., transatlantic, and transpacific routes. Real-time data from 76 flights were collected in 2006-2007 with a battery-powered UV photometric monitor. Sample mean ozone level, peak-hour ozone level, and flight-integrated ozone exposures were highly variable across domestic segments (N = 68), with ranges of 100 ppbv) ozone levels on domestic flights were associated with winter-spring storms that are linked to enhanced exchange between the lower stratosphere and the upper troposphere.

11

Effect of Ventilation Strategies on Residential Ozone Levels  

E-Print Network [OSTI]

provided  by  HVAC  system  filters,  it  was  assumed  filtration  from  the  HVAC  system  filters  brings  down  HVAC  system  air  leakage   and  ozone  deposition  on  HAVC  system  filters.      

Walker, Iain S.

2014-01-01T23:59:59.000Z

12

Colorado Wind Resource at 50 Meters Above Ground Level  

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

Wind Resource at 50 Meters Above Ground Level Wind Resource at 50 Meters Above Ground Level Metadata also available as Metadata: Identification_Information Data_Quality_Information Spatial_Data_Organization_Information Spatial_Reference_Information Entity_and_Attribute_Information Distribution_Information Metadata_Reference_Information Identification_Information: Citation: Citation_Information: Originator: AWS TrueWind/NREL Publication_Date: December 2003 Title: Colorado Wind Resource at 50 Meters Above Ground Level Geospatial_Data_Presentation_Form: vector digital data Online_Linkage: Description: Abstract: Annual average wind resource potential for the state of Colorado,

13

Modeling Ozone Levels in and around Southern California Homes  

Science Journals Connector (OSTI)

These data suggest that ambient O3 measured at regional stations, coupled with information about how homes are operated, predict in-home O3 levels moderately well and are potentially useful for future exposure assessment purposes. ... Siting criteria for samplers outside the homes included placement of the samplers on the rear patio or porch (for security reasons, in addition to access to electricity), sampling from at least 1 m above the floor surface, and avoidance of tree canopies, roof overhangs, or home air vents. ... The collection of home characterization data, operating parameters, and concurrent O3 monitoring in 126 homes across seasons makes this data set valuable. ...

Edward L. Avol; William C. Navidi; Steven D. Colome

1998-01-16T23:59:59.000Z

14

High-energy cosmic-ray muons at ground level and below ground level  

Science Journals Connector (OSTI)

Sea-level muon spectrum predictions for the vertical and greatly ... and also by Cantrell by means of both energy-independent and energy-dependent hadron-nucleus inelastic crosssections. Most recently observed gr...

C. R. Paul; N. Chaudhuri

1976-01-11T23:59:59.000Z

15

High-energy cosmic-ray muons at ground level and below ground level  

Science Journals Connector (OSTI)

Cosmic-ray muon interactions have been studied in an analysis of very recent measurements of cosmic-ray muons at sea-level and large depths underground ... By starting with the very carefully measured vertical muon

C. R. Paul; N. Chaudhuri

1977-01-11T23:59:59.000Z

16

P ORNiiTM-7004 Results of Ground Level Radiation  

Office of Legacy Management (LM)

ORNiiTM-7004 ORNiiTM-7004 Results of Ground Level Radiation Measurements in Support of the 1978 Aerial Survey of the Lake Ontario Ordnance W o rks, Lewiston, New York _ ict~~.. By A, grven _, ,_~ ~.~ _,. :::;(' ~. . ' -- .- ,. R. W . Doane F. F. Haywood W . H. Shinpaugh ORNL/TM-7004 Dist. Category UC-41 Contract No. W-7405eng-26 RESULTS OF GROUND LEVEL RADIATION MEASUREMENTS IN SUPPORT OF THE 1978 AERIAL SURVEY OF THE LAKE ONTARIO ORDNANCE WORKS, LEWISTON, NEW YORK B. A. Berven F. F. Haywood R. W. Doane W. H. Shinpaugh Work performed by Health and Safety Research Division Date Published: September 1979 Oak Ridge National Laboratory Oak Ridge, Tennessee 37830 operated by UNION CARBIDE CORPORATION for the DEPARTMENT OF ENERGY as part of the Formerly Utilized Sites -

17

Wideband noise observed at ground level in the auroral region  

SciTech Connect (OSTI)

A sideband noise event was detected at ground level from the Andoya Rocket Range in Norway in January 1989. The signals were observed on four commercial communication receivers (tuned to 159, 515, 905, and 1200 kHz), an ionosonde (200-kHz to 3.5-MHz interference-free observations) and a riometer (32.5 MHz). The event, which occurred during a period of magnetic disturbance near magnetic midnight, was the only one observed during nearly 3 weeks of operations. This low frequency-of-occurrence is attributed partly to high local noise levels. The ease with which this event was identified on the ionograms produced by the local ionosonde suggests that routine ionosonde recordings should be inspected in search for such events. Such an effort would enhance existing research directed toward developing techniques for identifying quiet communication channels and help to identify the origin and frequency-of-occurrence of high-latitude wideband noise events. 20 refs.

Benson, R.F.; Desch, M.D. (NASA, Goddard Space Flight Center, Greenbelt, MD (United States))

1991-08-01T23:59:59.000Z

18

Ozone in Michigan's Environment 1876–1880  

Science Journals Connector (OSTI)

Atmospheric ozone was monitored in Michigan during the late 1880's using Schoenbein's test paper. A conversion chart was constructed to relate the Schoenbein ozone scale at various relative humidifies to ozone levels indicated by a Dasibi ozone ...

Dale E. Linvill; W. J. Hooker; Brian Olson

1980-11-01T23:59:59.000Z

19

EA-1203: Trench 33 Widening in 218-W-5 Low-level Burial Ground, Hanford  

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

3: Trench 33 Widening in 218-W-5 Low-level Burial Ground, 3: Trench 33 Widening in 218-W-5 Low-level Burial Ground, Hanford Site, Richland, Washington EA-1203: Trench 33 Widening in 218-W-5 Low-level Burial Ground, Hanford Site, Richland, Washington SUMMARY This EA evaluates the environmental impacts for the proposal to widen and operate the unused Trench 33 in the 218-W-5 Low-Level Burial Ground at the U.S. Department of Energy's Richland Operations Office. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD July 28, 1997 EA-1203: Finding of No Significant Impact Trench 33 Widening in 218-W-5 Low-level Burial Ground, Hanford Site, Richland, Washington July 28, 1997 EA-1203: Final Environmental Assessment Trench 33 Widening in 218-W-5 Low-level Burial Ground, Hanford Site, Richland, Washington

20

EA-1276: Widening Trench 36 of the 218-E-12B Low-level Burial Ground,  

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

76: Widening Trench 36 of the 218-E-12B Low-level Burial 76: Widening Trench 36 of the 218-E-12B Low-level Burial Ground, Hanford Site, Richland, Washington EA-1276: Widening Trench 36 of the 218-E-12B Low-level Burial Ground, Hanford Site, Richland, Washington SUMMARY This EA evaluates the environmental impacts for the proposal to widen and operate unused Trench 36 in the 218-E-12B Low-Level Burial Ground for disposal of low-level waste at the U.S. Department of Energy Hanford Site. PUBLIC COMMENT OPPORTUNITIES None available at this time. DOCUMENTS AVAILABLE FOR DOWNLOAD February 11, 1999 EA-1276: Finding of No Significant Impact Widening Trench 36 of the 218-E-12B Low-level Burial Ground, Hanford Site, Richland, Washington February 11, 1999 EA-1276: Final Environmental Assessment Widening Trench 36 of the 218-E-12B Low-level Burial Ground, Hanford Site,

Note: This page contains sample records for the topic "ground level ozone" 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

Reforestation as a novel abatement and compliance measure for ground-level ozone  

Science Journals Connector (OSTI)

...aboveground C at year 30. Annual air pollution removal was greatest in year 23...underestimate total leaf area and air pollution removal during the later years...suggest that reforestation for air pollution abatement constitutes a potentially globally...

Timm Kroeger; Francisco J. Escobedo; José L. Hernandez; Sebastián Varela; Sonia Delphin; Jonathan R. B. Fisher; Janice Waldron

2014-01-01T23:59:59.000Z

22

Reforestation as a novel abatement and compliance measure for ground-level ozone  

Science Journals Connector (OSTI)

...processes and fuels (17); and...daily 8-h average) 2008 National...combustion controls (fuel switching...The net effect of a reforestation...the highest-price carbon...real offset prices will remain unchanged...represent the averages of the damage...the Greenhouse Effect; and Framework...

Timm Kroeger; Francisco J. Escobedo; José L. Hernandez; Sebastián Varela; Sonia Delphin; Jonathan R. B. Fisher; Janice Waldron

2014-01-01T23:59:59.000Z

23

Reforestation as a novel abatement and compliance measure for ground-level ozone  

Science Journals Connector (OSTI)

...disturbance events like drought, wildfire, pests and diseases, or hurricanes...Coast inland along the Brazos, Colorado, and St. Bernard Rivers...susceptible to drought and wildfire than upland forests (49...M Forest Service ( 2014 ) Wildfire risk assessment portal. Available...

Timm Kroeger; Francisco J. Escobedo; José L. Hernandez; Sebastián Varela; Sonia Delphin; Jonathan R. B. Fisher; Janice Waldron

2014-01-01T23:59:59.000Z

24

Reforestation as a novel abatement and compliance measure for ground-level ozone  

Science Journals Connector (OSTI)

...approaches to reduce emissions from fossil fuel combustion processes, implemented via command-and-control or market-based...shutdowns (16); conversion to lower-emitting combustion processes and fuels (17); and end-of-pipe controls...

Timm Kroeger; Francisco J. Escobedo; José L. Hernandez; Sebastián Varela; Sonia Delphin; Jonathan R. B. Fisher; Janice Waldron

2014-01-01T23:59:59.000Z

25

Ozone generation by rock fracture: Earthquake early warning?  

SciTech Connect (OSTI)

We report the production of up to 10 ppm ozone during crushing and grinding of typical terrestrial crust rocks in air, O{sub 2} and CO{sub 2} at atmospheric pressure, but not in helium or nitrogen. Ozone is formed by exoelectrons emitted by high electric fields, resulting from charge separation during fracture. The results suggest that ground level ozone produced by rock fracture, besides its potential health hazard, can be used for early warning in earthquakes and other catastrophes, such as landslides or land shifts in excavation tunnels and underground mines.

Baragiola, Raul A.; Dukes, Catherine A.; Hedges, Dawn [Engineering Physics, University of Virginia, Charlottesville, Virginia 22904 (United States)

2011-11-14T23:59:59.000Z

26

Hydrogeology of the 200 Areas low-level burial grounds: An interim report: Volume 1, Text  

SciTech Connect (OSTI)

This report presents information derived from the installation of 35 ground-water monitoring wells around six low-level radioactive/hazardous waste burial grounds located in the 200 Areas of the Hanford Site in southeastern Washington State. This information was collected between May 20, 1987 and August 1, 1988. The contents of this report have been divided into two volumes. This volume contains the main text. Volume 2 contains the appendixes, including data and supporting information that verify content and results found in the main text. This report documents information collected by the Pacific Northwest Laboratory at the request of Westinghouse Hanford Company. Presented in this report are the preliminary interpretations of the hydrogeologic environment of six low-level burial grounds, which comprise four waste management areas (WMAs) located in the 200 Areas of the Hanford Site. This information and its accompanying interpretations were derived from sampling and testing activities associated with the construction of 35 ground-water monitoring wells as well as a multitude of previously existing boreholes. The new monitoring wells were installed as part of a ground-water monitoring program initiated in 1986. This ground-water monitoring program is based on requirements for interim status facilities in compliance with the Resource Conservation and Recovery Act (1976).

Last, G.V.; Bjornstad, B.N.; Bergeron, M.P.; Wallace, D.W.; Newcomer, D.R.; Schramke, J.A.; Chamness, M.A.; Cline, C.S.; Airhart, S.P.; Wilbur, J.S.

1989-01-01T23:59:59.000Z

27

A ground level gamma-ray burst observed in association with rocket-triggered lightning  

E-Print Network [OSTI]

A ground level gamma-ray burst observed in association with rocket-triggered lightning J. R. Dwyer 2004; published 13 March 2004. [1] We report the observation of an intense gamma-ray burst observed lightning channel with gamma-ray energies extending up to more than 10 MeV. The burst consisted of 227

Florida, University of

28

Impact of the 2011 southern US drought on ground-level fine aerosol concentration in summertime  

Science Journals Connector (OSTI)

This study investigates the impacts of the 2011 severe drought in the southern United States (U.S.) on ground-level fine aerosol (PM2.5) concentrations in the summer. The changes in surface concentrations and planetary boundary layer (PBL) budget ...

Yuxuan Wang; Yuanyu Xie; Libao Cai; Wenhao Dong; Qianqian Zhang; Lin Zhang

29

Hydrogeology of the 200 Areas low-level burial grounds: An interim report: Volume 2, Appendixes  

SciTech Connect (OSTI)

This report presents information derived form the installation of 35 ground-water monitoring wells around six low-level radioactive/hazardous waste burial grounds located in the 200 Areas of the Hanford Site in southeastern Washington State. This information was collected between May 20, 1987 and August 1, 1988. The contents of this report have been divided into two volumes. Volume 1 contains the main text. This Volume contains the appendixes, including data and supporting information that verify content and results found in the main text.

Last, G.V.; Bjornstad, B.N.; Bergeron, M.P.; Wallace, D.W.; Newcomer, D.R.; Schramke, J.A.; Chamness, M.A.; Cline, C.S.; Airhart, S.P.; Wilbur, J.S.

1989-01-01T23:59:59.000Z

30

Hanford facility dangerous waste permit application, low-level burial grounds  

SciTech Connect (OSTI)

The Hanford Facility Dangerous Plaste Permit Application is considered to be a single application organized into a General Information Portion (document number DOE/RL-91-28) and a Unit-Specific Portion. The scope of the Unit-Specific Portion is limited to Part B permit application documentation submitted for individual, `operating` treatment, storage, and/or disposal units, such as the Low-Level Burial Grounds (this document, DOE/RL-88-20).

Engelmann, R.H.

1997-08-12T23:59:59.000Z

31

Performance Assessment Monitoring Plan for the Hanford Site Low-Level Burial Grounds  

SciTech Connect (OSTI)

The U.S. Department of Energy Order 435.1, Radioactive Waste Management, requires a disposal authorization statement authorizing operation (or continued operation) for low-level waste disposal facilities. In fulfillment of these requirements, a disposal authorization statement was issued on October 25, 1999, authorizing the Hanford Site to transfer, receive, possess, and dispose of low-level radioactive waste at the 200 East Area burial grounds and the 200 West Area burial grounds. One of the conditions is that monitoring plans for the 200 East Area and 200 West Area low-level burial grounds be written and approved by the Richland Operations Office. As a result of a record of decision for the Hanford Site Solid Waste Program and acceptance of the Hanford Site Solid Waste Environmental Impact Statement, the use of the low-level burial ground (LLBG) as a disposal facility for low-level and mixed low-level wastes has been restricted to lined trenches and the Navy reactor-compartment trench only. Hence, as of July 2004, only the two lined trenches in burial ground 218-W-5 (trenches 31 and 34, see Appendix A) and the Navy reactor-compartment trench in burial ground 218 E 12B (trench 94) are allowed to receive waste. When the two lined trenches are filled, the LLBG will cease to operate except for reactor compartment disposal at trench 94. Remaining operational lifetime of the LLBG is dependent on waste volume disposal rates. Existing programs for air sampling and analyses and subsidence monitoring are currently adequate for performance assessment at the LLBG. The waste disposal authorization for the Hanford Site is based (in part) on the post-closure performance assessments for the LLBG. In order to maintain a useful link between operational monitoring (e.g., Resource Conservation and Recovery Act [RCRA], Comprehensive Environmental Response, Compensation, and Liability Act, and State Waste Discharge Permits), constituents, monitoring frequencies, and boundaries require regular review and comparison. The annual reports discussed here are the primary sources for these reviews. The pathways of interest are air and groundwater for both operational and post-closure conditions at the LLBG, with groundwater considered to be the most significant long-term exposure pathway. Constituents that contributed at least 0.1% of the total relative hazard were selected as target analytes for monitoring. These are technetium-99, uranium, and iodine-129. Because of its environmental unavailability, carbon 14 was removed from the list of constituents. Given the potential uncertainties in inventories at the 200 Area LLBG and the usefulness of tritium as a contaminant indicator, tritium will be monitored as a constituent of concern at all burial grounds. Preexisting contamination plumes in groundwater beneath low-level waste management areas are attributed to other past-practice liquid waste disposal sites. Groundwater and air will be sampled and analyzed for radiogenic components. Subsidence monitoring will also be performed on a regular basis. The existing near-facility and surveillance air monitoring programs are sufficient to satisfy the performance assessment monitoring. Groundwater monitoring will utilize the existing network of wells at the LLBG, and co-sampling with RCRA groundwater monitoring, to be sampled semiannually. Installation of additional wells is currently underway to replace wells that have gone dry.

None

2006-03-30T23:59:59.000Z

32

A neural emission-receptor model for ozone reduction S.Barazzetta, G. Corani  

E-Print Network [OSTI]

in air pollution studies because of their impact on human health and agricultural crops and forests. High,guariso@elet.polimi.it Abstract: Ground level ozone pollution is a complex phenomenon heavily affecting industrialized and pop problem that determines the least cost alternatives to obtain a given air quality standard. The decision

Corani, Giorgio

33

Fukushima-derived radionuclides in ground-level air of Central Europe: a comparison with simulated forward and backward trajectories  

Science Journals Connector (OSTI)

Results of forward and backward modeling of air mass transport from Fukushima Daiichi nuclear power plant to Slovakia were...131I, 134Cs and 137Cs) were observed in the Bratislava ground-level air in March–April ...

P. P. Povinec; I. Sýkora; M. Gera; K. Holý…

2013-02-01T23:59:59.000Z

34

Engineering assessment of low-level liquid waste disposal caisson locations at the 618-11 Burial Grounds  

SciTech Connect (OSTI)

Rockwell Hanford Operations is currently involved in an extensive effort to perform interim ground surface stabilization activities at retired low-level waste burial grounds located at the Hanford Site, Richland, Washington. The principal objective of these activities is to promote increased occupational and radiological safety at burial grounds. Interim stabilization activities include: (1) load testing (traversing burial ground surfaces with heavy equipment to promote incipient collapse of void spaces within the disposal structure and overburden), (2) barrier placement (placement of a {ge} 0.6 m soil barrier over existing overburden), and (3) revegetation (establishment of shallow rooted vegetation on the barrier to mitigate deep rooted plant growth and to reduce erosion). Low-level waste disposal caissons were used in 300 Area Burial Grounds as internment structures for containerized liquid wastes. These caissons, by virtue of their contents, design and methods of closure, require long-term performance evaluation. As an initial activity to evaluate long-term performance, the accurate location of these structures is required. This topical report summarizes engineering activities used to locate caissons in the subsurface environment at the Burial Ground. Activities were conducted to locate caissons during surface stabilization activities. The surface locations were marked, photographed, and recorded on an as built engineering drawing. The recorded location of these caissons will augment long-term observations of confinement structure and engineered surface barrier performance. In addition, accurate caisson location will minimize occupational risk during monitoring and observation activities periodically conducted at the burial ground.

Phillips, S.J.; Fischer, D.D.; Crawford, R.C. [Westinghouse Hanford Co., Richland, WA (United States); Rising, J.L. [Pacific Northwest Lab., Richland, WA (United States)

1982-06-01T23:59:59.000Z

35

Ground Level Enhancement in the 2014 January 6 Solar Energetic Particle Event  

E-Print Network [OSTI]

We present a study of the 2014 January 6 solar energetic particle (SEP) event, which produced a small ground level enhancement (GLE), making it the second GLE of this unusual solar cycle 24. This event was primarily observed by the South Pole neutron monitors (increase of ~2.5%) whereas a few other neutron monitors recorded smaller increases. The associated coronal mass ejection (CME) originated behind the western limb and had the speed of 1960 km/s. The height of the CME at the start of the associated metric type II radio burst, which indicates the formation of a strong shock, was measured to be 1.61 Rs using a direct image from STEREO-A/EUVI. The CME height at the time of GLE particle release (determined using the South Pole neutron monitor data) was directly measured as 2.96 Rs, from the STEREO-A/COR1 white-light observations. These CME heights are consistent with those obtained for the GLE71, the only other GLE of the current cycle as well as cycle-23 GLEs derived using back-extrapolation. GLE72 is of spe...

Thakur, N; Xie, H; Makela, P; Davila, S Yashiro S Akiyama J M

2014-01-01T23:59:59.000Z

36

Prediction of In-Cloud Icing Conditions at Ground Level Using the WRF Model  

Science Journals Connector (OSTI)

In-cloud icing on aircraft and ground structures can be observed every winter in many countries. In extreme cases ice can cause accidents and damage to infrastructure such as power transmission lines, telecommunication towers, wind turbines, ski ...

Bjørn Egil Kringlebotn Nygaard; Jón Egill Kristjánsson; Lasse Makkonen

2011-12-01T23:59:59.000Z

37

Ozone Reductions Using Residential Building Envelopes  

SciTech Connect (OSTI)

Ozone is an air pollutant with that can have significant health effects and a significant source of ozone in some regions of California is outdoor air. Because people spend the vast majority of their time indoors, reduction in indoor levels of ozone could lead to improved health for many California residents. Ozone is removed from indoor air by surface reactions and can also be filtered by building envelopes. The magnitude of the envelope impact depends on the specific building materials that the air flows over and the geometry of the air flow paths through the envelope that can be changes by mechanical ventilation operation. The 2008 Residential Building Standards in California include minimum requirements for mechanical ventilation by referencing ASHRAE Standard 62.2. This study examines the changes in indoor ozone depending on the mechanical ventilation system selected to meet these requirements. This study used detailed simulations of ventilation in a house to examine the impacts of different ventilation systems on indoor ozone concentrations. The simulation results showed that staying indoors reduces exposure to ozone by 80percent to 90percent, that exhaust ventilation systems lead to lower indoor ozone concentrations, that opening of windows should be avoided at times of high outdoor ozone, and that changing the time at which mechanical ventilation occurs has the ability to halve exposure to ozone. Future work should focus on the products of ozone reactions in the building envelope and the fate of these products with respect to indoor exposures.

Walker, Iain S.; Sherman, Max; Nazaroff, William W.

2009-02-01T23:59:59.000Z

38

Ground level concentration of sulfur dioxide at Kuwait`s major population centers during the oil-field fires  

SciTech Connect (OSTI)

During the Iraqi occupation, Kuwait`s oil wells were ignited. the fires were damaging to the country`s oil resources and air quality. The impact of the oil-field fires on the air quality was studied to determine the level of exposure to pollutants in major population centers. The period of July-September 1991 was selected for examination. A mathematical model was used to compute the ground-level concentration isopleths. The results of these computations are supported by significant concentrations measured and reported by the Environmental Protection Council, Kuwait. The ground-level concentrations of sulfur dioxide in the major population centers, whether measure or estimated, were less than the ambient standards of the U.S. Environmental Protection Agency`s air pollution index. The dispersive characteristics were classified according to wind conditions. The results of this assessment provide historical data on Kuwait`s oil fires and may be useful in assessing risks resulting from this catastrophe. 6 refs., 10 fig., 2 tab.

Al-Ajmi, D.N.; Marmoush, Y.R. [Kuwait Institute for Scientific Research (Kuwait)] [Kuwait Institute for Scientific Research (Kuwait)

1996-08-01T23:59:59.000Z

39

Ground-penetrating radar survey of the Maxey Flats Low-Level Nuclear Waste Disposal Site, Fleming County, Kentucky  

SciTech Connect (OSTI)

A ground-penetrating radar survey was conducted at the Maxey Flats Low-Level Nuclear Waste Disposal Site, Kentucky, to more accurately determine the location of burial trenches and pits, and to identify locations and depths of any prominent subsurface features. A geologic/electromagnetic model of the site was developed and utilized for analysis of the acquired data. Depths of penetration derived from radar records correlate well with those calculated from the model. A final interpretation of the radar data is presented.

Horton, K.A.; Morey, R.M.

1982-06-01T23:59:59.000Z

40

Technology, Safety and Costs of Decommissioning a Reference Low-Level Waste Burial Ground Environmental Surveillance Programs  

SciTech Connect (OSTI)

This Addendum supplements, and to some extent replaces, the preliminary description of environmental radiological surveillance programs for low-level waste burial grounds (LLWBG) used in the parent document, 11 Technology, Safety and Costs of DecolliTlissioning a Reference Low-Level Waste Burial Ground, 11 NUREG/ CR-0570. The Addendum provides additional detail and rationale for the environmental radiological surveillance programs for the two referenced sites and inventories described in NUREG/CR-0570. The rationale and performance criteria herein are expected to be useful in providing guidance for determining the acceptability of environmental surveillance programs for other inventories and other LLWBG sites. Two generic burial grounds, one located on an arid western site and the other located on a humid eastern site, are reference facilities considered in this Addendum, and as described in the parent document (NUREG/CR-0570). The two sites are assumed to have the same capacity for waste, the same radioactive waste inventory, and similar trench characteristics and operating procedures. The climate, geology, and hydrology of the two reference sites are typical of existing western and eastern sites, altnough a single population distribution was chosen for both. Each reference burial ground occupies about 70 hectares and includes 180 trenches filled with a total of 1.5 x 10{sup 6} m{sup 3} of radioactive waste. In acldition, there are 10 slit trenches containing about 1.5 x 10{sup 3} m{sup 3} of high beta-gamma activity waste. In this Addendum environmental surveillance programs are described for the several periods in the life of a LLWBG: preoperational (prior to nuclear waste receipt); operational (including interim trench closures); post-operational (after all nuclear waste is received), for both short-term {up to three years) and long-term (up to 100 years) storage and custodial care; and decommissioning (only for the special case of waste removal). The specific environmental monitoring requirements for final site characterization and certification surveys are beyond the scope of this Addendum. Data collection associated with site reconnaissance and preselection is not specifically addressed, but it is recognized that such data may be useful in designing the preoperational program. Predisposal control measures, quality assurance, and record-keeping (other than inventory records) associated with waste disposal operations are also not addressed. The primary intent of routine environmental surveillance at a LLWBG is to help ensure that site activities do not cause significant transport of radioactivity from the site, resulting in an unacceptable health hazard to people. Preoperational environmental surveillance serves to determine for later comparison the background radioactivity levels, either naturally occurring or the result of man's activities (e.g. world-wide fallout or an adjacent nuclear facility), in and around the proposed burial ground site. The operational environmental surveillance program is used to estimate radiological conditions, both onsite and offsite as a possible result of burial ground activities, including trench closure(s). These data help to determine LLWBG compliance with regulatory requirements. During the post-operational period environmental surveillance should normally be an extension of the program carried out during operations, with appropriate deletions (or modifications) to account for the differences between operational and post-operational activities at the site. During the long-term storage and custodial care period, environmental surveillance serves to verify the radionuclide confinement capability of the burial ground and to identify problem situations requiring remedial action. For waste removal (exhumation), the environmental surveillance program is again modified to account for the greatly increased potential for direct radiation and contamination spread. At the time of decommissioning, "environmental surveillance" takes on a new meaning, from that of an ongoing prog

Denham, D. H.; Eddy, P. A.; Hawley, K. A.; Jaquish, R. E.; Corley, J. P.

1981-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Performance assessment for the disposal of low-level waste in the 200 West Area Burial Grounds  

SciTech Connect (OSTI)

This document reports the findings of a performance assessment (PA) analysis for the disposal of solid low-level radioactive waste (LLW) in the 200 West Area Low-Level Waste Burial Grounds (LLBG) in the northwest corner of the 200 West Area of the Hanford Site. This PA analysis is required by US Department of Energy (DOE) Order 5820.2A (DOE 1988a) to demonstrate that a given disposal practice is in compliance with a set of performance objectives quantified in the order. These performance objectives are applicable to the disposal of DOE-generated LLW at any DOE-operated site after the finalization of the order in September 1988. At the Hanford Site, DOE, Richland Operations Office (RL) has issued a site-specific supplement to DOE Order 5820.2A, DOE-RL 5820.2A (DOE 1993), which provides additiona I ce objectives that must be satisfied.

Wood, M.I.; Khaleel, R.; Rittmann, P.D.; Lu, A.H.; Finfrock, S.H.; DeLorenzo, T.H. [Westinghouse Hanford Co., Richland, WA (United States); Serne, R.J.; Cantrell, K.J. [Pacific Northwest Lab., Richland, WA (United States)

1995-06-01T23:59:59.000Z

42

Uncertainty propagation in a model for the estimation of the1 ground level concentration of dioxin/furans emitted from a waste2  

E-Print Network [OSTI]

Uncertainty propagation in a model for the estimation of the1 ground level concentration of dioxin concentration of dioxin/furans emitted from a waste gasification plant. Under the17 condition of insufficient

Paris-Sud XI, Université de

43

A real time model to forecast 24 hours ahead, ozone peaks and exceedance levels. Model based on artificial neural networks, neural classifier and weather predictions.  

E-Print Network [OSTI]

on artificial neural networks, neural classifier and weather predictions. Application in an urban atmosphere - will be solved. Keywords: Artificial neural network; Multilayer Perceptron; ozone modelling; statistical stepwise and Software 22, 9 (2007) 1261-1269" DOI : 10.1016/j.envsoft.2006.08.002 #12;Abstract A neural network combined

Paris-Sud XI, Université de

44

Ground-water levels and tritium concentrations at the Maxey Flats low-level radioactive waste disposal site near Morehead, Kentucky, June 1984 to April 1989  

SciTech Connect (OSTI)

The Maxey Flats disposal site, Kentucky encompasses about 280 acres near the edge of a flat-topped ridge. The ridge is underlain by fractured shale and sandstone beds of the Nancy Member and the Farmers Member of the Borden Formation of Mississippian age. Groundwater flow in the strata beneath the site occurs through fractures, and flow patterns are difficult to delineate. The potentiometric surface also is difficult to delineate because several saturated and unsaturated zones are present in the rocks. Generally, ground-water levels in wells intersecting permeable fractures fluctuated seasonally and were lowest from December through June and highest from July through November. Water levels in the disposal trenches fluctuations less than those in wells, and for most trenches the fluctuations were less than 0.5 foot. From June 1984 to April 1989, tritium concentrations in groundwater ranged from 0 to 2,402,200 picocuries/ml. The greatest and most variable tritium concentrations were in wells along the northwest side of the site. The major conduit of groundwater flow from the trenches in the northwestern part of the site is a fractured sandstone bed that forms the base of most trenches. Elsewhere along the site perimeter, elevated levels of tritium were not detected in wells, and mean tritium were not detected in wells, and mean tritium concentrations showed little change between 1986 and 1988.

Wilson, K.S.; Lyons, B.E. (Geological Survey, Reston, VA (United States))

1991-01-01T23:59:59.000Z

45

Ground-water levels and tritium concentrations at the Maxey Flats low-level radioactive-waste-disposal site near Morehead, Kentucky, June 1984 to April 1989. Water - resources investigation  

SciTech Connect (OSTI)

The report, one in a series of reports by the USGS, summarizes ground-water level and tritium data that were collected by the USGS from June 1984 through April 1989. The report also describes the occurrence and distribution of tritium in water from selected wells. Data for ground-water levels in wells and disposal tranches and the concentrations of tritium in water from monitoring wells at the site are presented. Precipitation data were collected in conjunction with the water-level data to relate precipitation to ground-water recharge. Specific conductance data, routinely determined for ground-water samples, also were collected to compare changes in specific conductance to changes in tritium concentrations. All data are stored locally on the U.S. Geological Survey's National Water Information System (NWIS).

Wilson, K.S.; Lyons, B.E.

1991-01-01T23:59:59.000Z

46

E-Print Network 3.0 - acute ozone-induced change Sample Search...  

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

Abstract Predicting ozone-induced reduction of carbon... a leaf-level model to the whole tree, it is possible to investigate whether the ozone-induced ... Source: Michigan...

47

Weekend/Weekday Ozone Study in the South Coast Air Basin | Department...  

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

Ozone Effect - The Weekly Ambient Emissions Control Experiment Weekday and Weekend Air Pollutant Levels in Ozone Problem Areas in the U.S. DOE's Studies of WeekdayWeekend...

48

Assimilation of wind profiler observations and its impact on three-dimensional transport of ozone over the Southeast Korean Peninsula  

Science Journals Connector (OSTI)

Abstract In order to investigate the impact of data assimilation on the assessment of ozone concentration in inland regions in the eastern area of the Korean Peninsula, several numerical experiments have been carried out using the Weather Research and Forecasting (WRF) model to estimate atmospheric circulations and the Community Multiscale Air Quality (CMAQ) model to assess air quality. Observations of wind that are assimilated into the modeling system are obtained from a wind profiler located at Changwon (CW), which is an urbanized coastal region in the Korean Peninsula. The simulated wind and temperature that is related to a well-developed sea breeze circulation are more consistent with observations in the experiment with dada assimilation than that without the assimilation. The ozone concentrations at both the coastal area of CW and the inland region of DG are well reproduced in the simulation with application of profiler data assimilation. Results from experiments without data assimilation are less realistic than that from the experiment with data assimilation. However, the improvement in simulation of meteorological variables and ozone concentration due to data assimilation is greater in the inland area than in the coastal area, where the wind profiler is located. The ozone concentration in CW changes only over a limited area and below the altitude of 1 km with a maximum change of 25 ppb. In contrast, the simulated ozone concentration in DG has been improved from the ground to upper levels of the planetary boundary layer (PBL), despite the fact that the observations are collected and assimilated into the model at the coastal region. Based on the results of process analysis, we find that the horizontal and vertical transportation of ozone related to the sea-breeze is more important than the local contribution of chemical production in determining the ozone concentration over the inland area. Therefore, observations of wind profiles in the coastal area and assimilation of these observations into the modeling system are important in our modeling study to assess the ozone concentration in inland areas. The assimilation of observations can greatly improve the model performance in both circulation simulation and ozone concentration simulation.

Soon-Young Park; Soon-Hwan Lee; Hwa Woon Lee

2014-01-01T23:59:59.000Z

49

Effect of sorghum bran addition on lipid oxidation and sensory properties of ground beef patties differing in fat levels  

E-Print Network [OSTI]

% lean were formulated into three meat blocks containing either 10, 20 or 30% lipid. Within a fat content, ground beef was equally divided into one of six treatments: 1) control-no added ingredients; 2) BHA and BHT at .01% of the meat weight; 3) rosemary...

Hemphill, Susan Patricia

2006-10-30T23:59:59.000Z

50

Transuranic Waste Retrieval from the 218-W-4B and 218-W-4C Low-Level Burial Grounds, Hanford Site, Richland, Washington  

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

05 05 Environmental Assessment Transuranic Waste Retrieval from the 218-W-4B and 218-W-4C Low-Level Burial Grounds, Hanford Site, Richland, Washington U.S. Department of Energy Washington, D.C. March 2002 DOE/EA-1405 U.S. Department of Energy Contents Environmental Assessment C-1 March 2002 CONTENTS PREFACE ....................................................................................................................................P-1 GLOSSARY ................................................................................................................................ G-1 SCIENTIFIC NOTATION CONVERSION CHART .................................................................... G-2 METRIC CONVERSION CHART...............................................................................................

51

Assessment of compliance with ground water protection standards in the 2008 performance assessment for the proposed high-level radioactive waste repository at Yucca Mountain, Nevada  

Science Journals Connector (OSTI)

Abstract Extensive work has been carried out by the U.S. Department of Energy (DOE) in the development of a proposed geologic repository at Yucca Mountain (YM), Nevada, for the disposal of high-level radioactive waste. In support of this development and an associated license application to the U.S. Nuclear Regulatory Commission (NRC), the DOE completed an extensive performance assessment (PA) for the proposed YM repository in 2008. This presentation describes the assessment of compliance with ground water protection standards in the 2008 YM PA. The following topics are addressed: (i) regulatory background, (ii) analysis structure including characterization of uncertainty, and (iii) analysis results for each of the ground water protection standards. The present article is part of a special issue of Reliability Engineering and System Safety devoted to the 2008 YM PA; additional articles in the issue describe other aspects of the 2008 YM PA.

C.W. Hansen; G.A. Behie; K.M. Brooks; Y. Chen; J.C. Helton; S.P. Hommel; K.P. Lee; B. Lester; P.D. Mattie; S. Mehta; S.P. Miller; C.J. Sallaberry; S.D. Sevougian; M. Wasiolek

2014-01-01T23:59:59.000Z

52

7, 97959828, 2007 Tropospheric ozone  

E-Print Network [OSTI]

ACPD 7, 9795­9828, 2007 Tropospheric ozone climatology over Beijing A. J. Ding et al. Title Page Chemistry and Physics Discussions Tropospheric ozone climatology over Beijing: analysis of aircraft data;ACPD 7, 9795­9828, 2007 Tropospheric ozone climatology over Beijing A. J. Ding et al. Title Page

Paris-Sud XI, Université de

53

8, 1106311101, 2008 Tropospheric Ozone  

E-Print Network [OSTI]

ACPD 8, 11063­11101, 2008 Tropospheric Ozone climatology in the southern subtropics G. Clain et al.0 License. Atmospheric Chemistry and Physics Discussions Tropospheric ozone climatology at two southern Tropospheric Ozone climatology in the southern subtropics G. Clain et al. Title Page Abstract Introduction

Paris-Sud XI, Université de

54

Wastewater Ozonation Catalyzed by Iron  

Science Journals Connector (OSTI)

Another attempt to improve ozonation removal efficiency is the use of metals or their oxides to catalyze ozonation. ... The waveforms were generated by a potentiostat BAS model Epsilon-2. ... Sreethawong, T.; Chavadej, S.Color removal of distillery wastewater by ozonation in the absence and presence of immobilized iron oxide catalyst J. Hazard. ...

Anaid Cano Quiroz; Carlos Barrera-Di?az; Gabriela Roa-Morales; Patricia Balderas Herna?ndez; Rubi? Romero; Reyna Natividad

2010-09-23T23:59:59.000Z

55

Ozone removal by HVAC filters  

Science Journals Connector (OSTI)

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

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

2007-01-01T23:59:59.000Z

56

Laboratory Measurement of Secondary Pollutant Yields from Ozone Reaction  

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

Laboratory Measurement of Secondary Pollutant Yields from Ozone Reaction Laboratory Measurement of Secondary Pollutant Yields from Ozone Reaction with HVAC Filters Title Laboratory Measurement of Secondary Pollutant Yields from Ozone Reaction with HVAC Filters Publication Type Conference Proceedings Year of Publication 2009 Authors Destaillats, Hugo, Wenhao Chen, Michael G. Apte, Nuan Li, Michael Spears, Jérémie Almosni, Jianshun Zheng, and William J. Fisk Conference Name Proceedings of the Healthy Buildings 2009 Conference Conference Location Syracuse, NY Keywords building-related symptoms, hvac filter, ozone, ptr-ms, secondary pollutants Abstract We used Proton Transfer Reaction - Mass Spectrometry (PTR-MS) and conventional sampling methods to monitor and identify trace level organic pollutants formed in heterogeneous reactions between ozone and HVAC filters in real time. Experiments were carried out using a bench-scale flow tube reactor operating with dry air and humidified air (50% RH), at realistically high ozone concentrations (150 ppbv). We explored different filter media (i.e., fiberglass and cotton/polyester blends) and different particle loadings (i.e., clean filter and filters loaded with particles for 3 months at the Lawrence Berkeley National Laboratory and the Port of Oakland, CA). Detailed emission dynamics of very low levels of certain organic pollutants from filter media upon ozone exposure in the presence of moisture have been obtained and analyzed.

57

Substation grounding.  

E-Print Network [OSTI]

??Designing a proper substation grounding system is quite complicating. Many parameters affect its design. In order for a grounding design to be safe, it needs… (more)

Baleva, Inna

2012-01-01T23:59:59.000Z

58

Response: Stratospheric Ozone  

Science Journals Connector (OSTI)

...Stratospheric Ozone The Upper Atmosphere Research Pro-gram...not coincide with true atmospheric change. A major review...report "Spacelab-2 plasma depletion experiments...correct figure 5 is printed below. N 2.5 OMS...360 MHz0 o 1.704 MHz'(a O, 2.108 MHz...

KENNETH P. BOWMAN

1988-02-19T23:59:59.000Z

59

Stratospheric ozone depletion  

Science Journals Connector (OSTI)

...atmospheric lifetimes. The water solubility of the CFCs is very...surface back into the gas phase, where they...sufficient additional water molecules can accumulate...stratospheric ozone by nitrogen oxide catalysts from...Gille, J.C1986The water vapor budget of the...

2006-01-01T23:59:59.000Z

60

Ozone decomposing filter  

DOE Patents [OSTI]

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

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

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Ozone and ethylene stress  

Science Journals Connector (OSTI)

... SIRá"In a recent News and Views article1 "Adding ethylene to injury", M. Unsworth discussed the results of Mehlhorn and Wellburn2, who reported ... M. Unsworth discussed the results of Mehlhorn and Wellburn2, who reported that both endogenous ethylene (a stress-hormone) and exogenous ozone are cooperating prerequisites for injury to pea plants ...

E. F. ELSTNER

1987-08-06T23:59:59.000Z

62

Estimation of natural ground water recharge for the performance assessment of a low-level waste disposal facility at the Hanford Site  

SciTech Connect (OSTI)

In 1994, the Pacific Northwest Laboratory (PNL) initiated the Recharge Task, under the PNL Vitrification Technology Development (PVTD) project, to assist Westinghouse Hanford Company (WHC) in designing and assessing the performance of a low-level waste (LLW) disposal facility for the US Department of Energy (DOE). The Recharge Task was established to address the issue of ground water recharge in and around the LLW facility and throughout the Hanford Site as it affects the unconfined aquifer under the facility. The objectives of this report are to summarize the current knowledge of natural ground water recharge at the Hanford Site and to outline the work that must be completed in order to provide defensible estimates of recharge for use in the performance assessment of this LLW disposal facility. Recharge studies at the Hanford Site indicate that recharge rates are highly variable, ranging from nearly zero to greater than 100 mm/yr depending on precipitation, vegetative cover, and soil types. Coarse-textured soils without plants yielded the greatest recharge. Finer-textured soils, with or without plants, yielded the least. Lysimeters provided accurate, short-term measurements of recharge as well as water-balance data for the soil-atmosphere interface and root zone. Tracers provided estimates of longer-term average recharge rates in undisturbed settings. Numerical models demonstrated the sensitivity of recharge rates to different processes and forecast recharge rates for different conditions. All of these tools (lysimetry, tracers, and numerical models) are considered vital to the development of defensible estimates of natural ground water recharge rates for the performance assessment of a LLW disposal facility at the Hanford Site.

Rockhold, M.L.; Fayer, M.J.; Kincaid, C.T.; Gee, G.W.

1995-03-01T23:59:59.000Z

63

Evaluation of the fatty acid composition and caloric value of ground beef formulated to contain low levels of fat  

E-Print Network [OSTI]

. 02e . 09 p3d e pgcd 1 gde . 02e . 27d psde 27d . 02e Total fatly acids 4. 57gh 5 45ef 6 opde 6 60d 7 61c 4 42h 4 91lgh 4 84fgh 5 1 sfg 5 61e 5 g8de a Cooked to one level of doneness. b Mean values of two chemical analyses per sample. F...Nic Palmitoleic Stearic . 79c . 33d 5 23c 1 46c 3 26c 10. 20 37h 2 90h . 879k 5. 35' 80c . 43c 5 23c 1 37c 2. 574 9. 254 44g h . 1919 3 30gh . 919 44lgh . 1919 3 20gh . 97'9 2. 00s 9 1. 969 6 69fgh 6 43lgh . 55def 24 sf g 3 80ef...

Campbell, Laura Elaine

2012-06-07T23:59:59.000Z

64

Ozone Depletion and Global Warming.  

E-Print Network [OSTI]

??Abstract This thesis examines global warming and the possible contribution that ozone depletion provides to this warming. An examination is performed to determine the extent… (more)

Fow, Alista John

2006-01-01T23:59:59.000Z

65

Annual and Seasonal Global Variation in Total Ozone and Layer-Mean Ozone,  

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

Atmospheric Trace Gases » Ozone » Total Ozone and Layer-Mean Ozone Atmospheric Trace Gases » Ozone » Total Ozone and Layer-Mean Ozone Annual and Seasonal Global Variation in Total Ozone and Layer-Mean Ozone, 1958-1987 (1991) DOI: 10.3334/CDIAC/atg.ndp023 data Data Investigators J. K. Angell, J. Korshover, and W. G. Planet Description For 1958 through 1987, this data base presents total ozone variations and layer mean ozone variations expressed as percent deviations from the 1958 to 1977 mean. The total ozone variations were derived from mean monthly ozone values published in Ozone Data for the World by the Atmospheric Environment Service in cooperation with the World Meteorological Organization. The layer mean ozone variations are derived from ozonesonde and Umkehr observations. The data records include year, seasonal and annual

66

Ground Water Ground Sky Sky Water Vegetation Ground Vegetation Water  

E-Print Network [OSTI]

Bear Snow Vegetation RhinoWater Vegetation Ground Water Ground Sky Sky Rhino Water Vegetation Ground Vegetation Water Rhino Water Vegetation Ground Rhino Water Rhino Water Ground Ground Vegetation Water Rhino Vegetation Rhino Vegetation Ground Rhino Vegetation Ground Sky Rhino Vegetation Ground Sky

Chen, Tsuhan

67

The role of ozone in tracheal cell transformation  

SciTech Connect (OSTI)

This project examined the potential role of ozone as a respiratory carcinogen by characterizing its ability to induce or modulate the preneoplastic transformation of rat tracheal epithelial cells. The chemical reactivity of ozone and the types of damage it can cause suggest that it may have a role in environmental carcinogenesis. Few other studies have examined the direct cytotoxic or transforming effects of ozone after in vivo or in vitro exposure of cells, and no studies have been reported on the comparative effects of ozone on respiratory cells exposed in vivo or in vitro. The induction of early preneoplastic changes in populations of rat tracheal epithelial cells by carcinogens can be detected and quantified in vitro after exposures in vivo or in vitro of tracheal epithelial cells. This cell culture and transformation system was used to characterize the transforming potency of ozone. Tracheal epithelial cells were isolated from Fischer-344/N rats that had been exposed for six hours per day, five days per week for one, two, or four weeks to 0, 0.12, 0.5, or 1.0 parts per million (ppm)* ozone (sea-level equivalents). Cell populations were examined in culture for increases in the frequency of preneoplastic variants. Rats exposed to ozone did not exhibit an increase in the frequency of preneoplastic tracheal cells, although exposed tracheas did exhibit dose-dependent morphological changes. Rat tracheal epithelial cells were given single, 40-minute in vitro exposures to concentrations of ozone that did not result in any detectable decrease in colony-forming efficiency.

Thomassen, D.G.; Harkema, J.R.; Sun, J.D.; Stephens, N.D.; Griffith, W.C. (Inhalation Toxicology Research Institute, Lovelace Biomedical and Environmental Research Institute, Albuquerque, NM (United States))

1992-04-01T23:59:59.000Z

68

Tropospheric ozone trends at Mauna Loa Observatory tied to decadal climate variability  

E-Print Network [OSTI]

measurements at Mauna Loa Observatory in Hawaii reveal little change in tropospheric ozone levels during spring a suite of chemistry­climate model simulations. We show that the flow of ozone-rich air from Eurasia towards Hawaii during spring weakened in the 2000s as a result of La-Niña-like decadal cooling

69

6, 39133943, 2006 Svalbard total ozone  

E-Print Network [OSTI]

(Farman et al., 1985) and25 global ozone layer reduction, the chemical and dynamical processes causing

Boyer, Edmond

70

Hole in the ozone layer?  

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

Hole in the ozone layer? Hole in the ozone layer? Name: Kelley Location: N/A Country: N/A Date: N/A Question: Is there really a hole in the ozone layer? Replies: That depends on what one means by a "hole". There is a thinning of the layer that is particularly severe during certain seasons at the poles. But the ozone layer is thinning most everywhere. The thinning around the south pole of earth is particularly stunning, and has been referred to as a hole even though some ozone still exists there, it is much less concentrated. As you may know, this ozone destruction is probably due to human release of pollutants such as clorofluorocarbons (CFCs) an due to natural sources such as chemicals from volcanic eruptions. CFCs are used is cooling systems such as refrigerators and air conditioning. There is an international agreement to phase out the use of these destructive chemicals but they won't be banned entirely for years for fears of losing money. Meanwhile the ozone layer thins and we are exposed to increasingly higher doses of cancer causing radiation

71

Lefvre M., Cros S., Albuisson M., Wald L., 2003. Developing a database using Meteosat data for the de-livery of solar radiation assessments at ground level. In Proceedings of the 23rd EARSeL Annual Symposium  

E-Print Network [OSTI]

, oceanogra- phy and limnology applications, urban air quality studies, sizing of space borne sensors, solar for the de- livery of solar radiation assessments at ground level. In Proceedings of the 23rd EARSeL Annual, Rotterdam, Netherlands, pp. 485-489. Developing a database using METEOSAT data for the delivery of solar

Paris-Sud XI, Université de

72

Pulsed ozone generation in oxygen  

SciTech Connect (OSTI)

Ozone is a powerful oxidant and bactericide which is increasingly replacing chlorine in applications such as potable water treatment, swimming pool water sterilisation and bleaching. Ozone can be produced in a number of ways but the conventional method (1) is by producing an AC barrier discharge in a uniform-field arrangement containing a thin dielectric barrier. The process is highly inefficient with most of the energy supplied being converted to unwanted heat. Thus ozone treatment, although environmentally {open_quotes}friendly{close_quotes}, tends to be more costly and so there is a compelling argument for investigating ways of increasing the efficiency.

Chalmers, I.D.; Zanella, L.; MacGregor, S.J. [Univ. of Strathclyde, Glasgow (Germany)] [and others

1995-12-31T23:59:59.000Z

73

Real-World Studies of Ambient Ozone Formation as a Function of...  

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

-- Washington D.C. ace29lawson.pdf More Documents & Publications Weekday and Weekend Air Pollutant Levels in Ozone Problem Areas in the U.S. Health Impacts Program DOE's...

74

Biofouling control with ozone at the Bergen Generating Station  

SciTech Connect (OSTI)

The results of a study designed to evaluate the effectiveness of ozone as an alternative to chlorine for condenser biofouling control in a once-through cooling system are reported. Tests were conducted at PSE and G's Bergen Generating Station using a pilot-scale condenser system to simulate plant condenser operations. Three model condensers were operated under identical conditions with only the biocide treatment differing. Comparisons of ozone and chlorine were made and the minimum effective levels of each were determined by daily measurements of the heat transfer coefficient across the model condenser tubes and/or the water side pressure drop. Final evaluation was based on the mass of biofouling material collected from the tubewalls. Test results indicate that chlorine is capable of effective biofouling control when applied for 2 hours/day at a level as low as 0.1 mg/l. Ozone, applied on the same schedule, requires 0.5 mg/l for effective control. The results of this study are representative of only the Bergen site. Water quality at each particular site will influence the development of the biofouling organisms, the chemical reactions of the biocides, and therefore, the effectiveness of the treatment methodology. The results suggest that further examination of ozonation for biofouling control is warranted. Although much more costly than chlorine, its effects on indigenous ecosystems may prove ozone to be better suited for application at selected power plants. It must be emphasized, however, that much more information is necessary before ozone can be recommended as an environmentally acceptable alternative to chlorine.

Sugam, R.; Guerra, C.R.; DelMonaco, J.L.; Singletary, J.H.; Sandvik, W.A.

1980-11-01T23:59:59.000Z

75

Isotope Evidence for Ozone Formation on Surfaces  

Science Journals Connector (OSTI)

Remarkably, the gas-phase recombination or association reaction of ozone has an unusually large (?10%) isotope effect and shows almost equal enrichments of the ozone molecules containing two different oxygen isotopes. ... For a better understanding of the pressure and temperature dependence of ozone isotopic composition in oxygen discharges, we developed a relatively simple isotope kinetic model that accounts for the processes of (i) heterogeneous ozone formation at the reactor walls, (ii) isotope exchange of oxygen atoms with O2 molecules, and (iii) ozone formation in the gas phase. ...

Christof Janssen; Béla Tuzson

2010-05-06T23:59:59.000Z

76

Ozone decomposition in water solutions  

E-Print Network [OSTI]

. Hewes, III; B. S. , Texas ASH University Directed by Dr. R. R. Davison The rate of the decomposition of ozone in water solutions at various pH's and temperatures were ob- tained by an iodometrical method. The orders of the reactions and the reaction...

Hewes, Cecil Grayson

1969-01-01T23:59:59.000Z

77

6, 74277469, 2006 Linear ozone  

E-Print Network [OSTI]

from biases in the schemes' climatology coefficients. Cariolle v2.1 analyses showed biases of up to 20 and Kelder (1998) ozone climatology into the scheme. Chem2D-OPP v2.1 analyses showed biases up to 20 analysed temperatures and the temperature climatology supplied with the scheme. Future developments should

Boyer, Edmond

78

Meteorological Simulations of Ozone Episode Case Days during the 1996 Paso del Norte Ozone Study  

SciTech Connect (OSTI)

Meteorological simulations centered around the border cities of El Paso and Ciudad Juarez have been performed during an ozone episode that occurred on Aug. 13,1996 during the 1996 Paso del Norte Ozone Study field campaign. Simulations were petiormed using the HOTMAC mesoscale meteorological model using a 1,2,4, and 8 km horizontal grid size nested mesh system. Investigation of the vertical structure and evolution of the atmospheric boundary layer for the Aug. 11-13 time period is emphasized in this paper. Comparison of model-produced wind speed profiles to rawirisonde and radar profiler measurements shows reasonable agreement. A persistent upper-level jet was captured in the model simulations through data assimilation. In the evening hours, the model was not able to produce the strong wind direction shear seen in the radar wind profiles. Based on virtual potential temperature profile comparisons, the model appears to correctly simulate the daytime growth of the convective mixed layer. However, the model underestimates the cooling of the surface layer at night. We found that the upper-level jet significantly impacted the turbulence structure of the boundary layer, leading to relatively high turbulent kinetic energy (tke) values aloft at night. The model indicates that these high tke values aloft enhance the mid-morning growth of the boundary layer. No upper-level turbulence measurements were available to verify this finding, however. Radar profiler-derived mixing heights do indicate relatively rapid morning growth of the mixed layer.

Brown, M.J.; Costigan, K.; Muller, C.; Wang, G.

1999-02-01T23:59:59.000Z

79

Three-dimensional simulations of wintertime ozone variability in the lower stratosphere  

SciTech Connect (OSTI)

The evolution of ozone has been calculated for the winters of 1979 and 1989 using winds derived from the authors stratospheric data assimilation system (STRATAN). The ozone fields calculated using this technique are found to compare well with satellite-measured fields for simulations of 2-3 months. Here the authors present comparisons of model fields with both satellite and sonde measurements to verify that stratospheric transport processes are properly represented by this modeling technique. Attention is focussed on the northern hemisphere middle and high latitudes at the 10-hPa level and below, where transport processes are most important to the ozone distribution. First-order quantities and derived budgets from both the model and satellite data are presented. By sampling the model with a limb-viewing satellite and then Kalman filtering the observations of the model, it is shown that transient subplanetary-scale features that are essential to the ozone budget are missed by the satellite system.

Rood, R.B.; Douglass, A.R.; Kaye, J.A. (NASA Goddard Space Flight Center, Greenbelt, MD (USA)); Geller, M.A.; Yuechen, Chi (State Univ. of New York, Stony Brook (USA)); Allen, D.J.; Larson, E.M.; Nash, E.R.; Nielsen, J.E. (Applied Research Corp., Landover, MD (USA))

1991-03-20T23:59:59.000Z

80

Discharge cell for ozone generator  

DOE Patents [OSTI]

A discharge cell for use in an ozone generator is provided which can suppress a time-related reduction in ozone concentration without adding a catalytic gas such as nitrogen gas to oxygen gas as a raw material gas. The discharge cell includes a pair of electrodes disposed in an opposed spaced relation with a discharge space therebetween, and a dielectric layer of a three-layer structure consisting of three ceramic dielectric layers successively stacked on at least one of the electrodes, wherein a first dielectric layer of the dielectric layer contacting the one electrode contains no titanium dioxide, wherein a second dielectric layer of the dielectric layer exposed to the discharge space contains titanium dioxide in a metal element ratio of not lower than 10 wt %.

Nakatsuka, Suguru (Amagasaki, JP)

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Ozone bleaching of recycled paper  

SciTech Connect (OSTI)

Chlorinated bleaching chemicals, notably chlorine and hypochlorite, are still being used to bleach deinked, woodfree pulps. Increasing environmental concern about the use of these chemicals--coupled with the industry's efforts to increase the use of recycled fibers--highlight the need to develop better techniques for producing high-quality deinked pulp. Results presented in this report suggest that deinked fibers can be treated with ozone followed by a peroxide bleaching stage to produce a high-quality pulp.

Muguet, M.; Kogan, J. (American Air Liquide, Countryside, IL (United States))

1993-11-01T23:59:59.000Z

82

Y-12 Plant Stratospheric Ozone Protection plan  

SciTech Connect (OSTI)

The Y-12 Plant staff is required by Lockheed Martin Energy Systems (Energy Systems) (formerly Martin Marietta Energy Systems) standard ESS-EP-129 to develop and implement a Stratospheric Ozone Protection Program which will minimize emissions of ozone-depleting substances to the environment and maximize the use of ozone-safe alternatives in order to comply with Title VI of the 1990 Clean Air Act (CAA) Amendments and the implementing regulations promulgated by the Environmental Protection Agency (EPA). This plan describes the requirements, initiatives, and accomplishments of the Y-12 Plant Stratospheric Ozone Protection Program.

NONE

1995-09-01T23:59:59.000Z

83

DOE's Studies of Weekday/Weekend Ozone Pollution in Southern...  

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

Studies of WeekdayWeekend Ozone Pollution in Southern California DOE's Studies of WeekdayWeekend Ozone Pollution in Southern California 2002 DEER Conference Presentation:...

84

The Weekend Ozone Effect - The Weekly Ambient Emissions Control...  

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

More Documents & Publications WeekendWeekday Ozone Study in the South Coast Air Basin DOE's Studies of WeekdayWeekend Ozone Pollution in Southern California...

85

Substation grounding programs  

SciTech Connect (OSTI)

The five volume report comprises the user manual, installation, and validation manual and an applications guide for the SGA (Substation Grounding Analysis) software package. SGA consists of four computer programs: (1) SOMIP, (2) SMECC, (3) SGSYS, and (4) TGRND. The first three programs provide a comprehensive analysis tool for the design of substation grounding systems to meet safety standards. The fourth program, TGRND, provides a state of the art analysis tool for computing transient ground potential rise and ground system impedance. This part of the report, Volume 1, is a users manual and an installation and validation manual for the computer program SOMIP (SOil Measurement Interpretation Program). This program computes the best estimate of the parameters of a two layer soil model from usual soil resistivity measurements. Four pin or three pin soil measurements can be accommodated. In addition, it provides error bounds on the soil parameters for a given confidence level. The users manual describes data requirements and data preparation procedures. The installation and validation manual describes the computer files which make up the program SOMIP and provides two test cases for validation purposes. 4 refs.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). School of Electrical Engineering)

1992-05-01T23:59:59.000Z

86

Ozone and life on the Archaean Earth  

Science Journals Connector (OSTI)

...John Raven Ozone and life on the Archaean Earth Charles S Cockell 1 * John A Raven 2...cockell@open.ac.uk ) 1 Centre for Earth, Planetary, Space and Astronomical Research...column abundance. On the anoxic Archaean Earth, such an ozone screen would not have existed...

2007-01-01T23:59:59.000Z

87

NLS ground states on graphs  

E-Print Network [OSTI]

We investigate the existence of ground states for the subcritical NLS energy on metric graphs. In particular, we find out a topological assumption that guarantees the nonexistence of ground states, and give an example in which the assumption is not fulfilled and ground states actually exist. In order to obtain the result, we introduce a new rearrangement technique, adapted to the graph where it applies. Owing to such a technique, the energy level of the rearranged function is improved by conveniently mixing the symmetric and monotone rearrangement procedures.

Riccardo Adami; Enrico Serra; Paolo Tilli

2014-06-16T23:59:59.000Z

88

A study of the effect of ozone and antioxidants on ozone-sensitive loblolly pine  

E-Print Network [OSTI]

to prevent injury from other pollutants (Manning, 1992). It has been widely reported that ethylenediurea protects plants from ozone foliar injury (Bennett et al. , 1978; Lee et al. , 198 la; Clarke et al. , 1990', Whitaker et al. , 1990; Kostka-Rick... & Manning, 1991; 1992) as well as early senescence due to ozone damage (Temple & Bisessar, 1979; Lee et al. , 1981a; Kostka-Rick et al. , 1991). Ozone pretnaturely ages the leaf, and EDU counteracts these effects by enhancing cellular carbohydrates...

Posey, Karen Lashea

1995-01-01T23:59:59.000Z

89

Geophysics: Ancient Air, Ozone, and Faults  

Science Journals Connector (OSTI)

...col-leagues at he Jet Propulsion Laboratory showing that the postulated reactions do occur under Antarctic stratospheric di-iions. Whether similar reactions accelerate ozone destruion under conditions more typial of the rest of the stratosphere re-mains...

RICHARD A. KERR

1988-01-08T23:59:59.000Z

90

Ozone treatment of biomass to enhance digestibility  

E-Print Network [OSTI]

is very resistant to enzymatic degradation. Lignocellulosic materials require pretreatment to enhance their digestibility. The main objective of this research was to further enhance the digestibility of biomass (bagasse) with ozonation as a follow...

Almendarez, Maria Elena

2000-01-01T23:59:59.000Z

91

Intercomparison of ozone measurements over Antarctica  

SciTech Connect (OSTI)

Measurements of the abundances of ozone over Antarctic in August and September 1987 obtained during the Airborne Antarctic Ozone Experiment are intercompared. These measurements of ozone concentrations and total column abundance were obtained by three satellite instruments, two IR and one UV column-measuring instruments aboard the DC-8, one in situ DC-8, and two in situ ER-2 instruments, an upward looking lidar aboard the DC-8, and ozonesondes from four sites in Antarctica. Given the natural variability of ozone in the Antarctic and the fact that the data were not truly coincident spatially and temporally, this intercomparison is suitable only for identifying gross disparities among the techniques, rather than confirming the accuracies as rigorously as is normally done in an intercomparison. This paper presents a summary of the ozone data, using the data and accuracies given by the individual investigators in the individual papers in this issue, without any attempt to critically review or evaluate the data. In general, very good agreement (within about 10-20%, limited by natural variability) among the various techniques was found, with no systematic biases detected. These observations confirm the low ozone amounts reported in the Antarctic stratosphere.

Margitan, J.J.; Farmer, C.B.; Toon, G.C. (California Inst. of Tech., Pasadena (United States)); Brothers, G.A. (Chemal, Inc., Wallops Island, VA (United States)); Browell, E.V.; Gregory, G.L.; Hypes, W.; Larsen, J.C.; McCormick, M.P. (NASA Langley Research Center, Hampton, VA (United States)); Cariolle, D. (Centre National de la Recherches Meteorologiques, Toulouse (France)); Coffey, M.T.; Mankin, W. (National Center for Atmospheric Research, Boulder, CO (United States)); Farman, J.C. (British Antarctic Survey, Cambridge (United Kingdom)); Harder, J.W.; Mount, G.H.; Ravishankara, A.R.; Schemeltekopf, A.L.; Tuck, A.F. (NOAA Aeronomy Lab., Boulder, CO (United States)); Hofmann, D.J. (Univ. of Wyoming, Laramie (United States)); Ismail, S.; Kooi, S. (ST Systems, Inc., Hampton, VA (United States)); Jakoubek, R.O.; Proffitt, M.H.; Wahner, A.; Watterson, I. (NOAA Aeronomy Lab., Boulder, CO (United States) Univ. of Colorado, Boulder (United States)); Komhyr, W. (NOAA Air Resources La

1989-11-30T23:59:59.000Z

92

Variability in surface ozone background over the United States: Implications for air quality policy  

E-Print Network [OSTI]

Variability in surface ozone background over the United States: Implications for air quality policy background over the United States: Implications for air quality policy, J. Geophys. Res., 108(D24), 4787, doi Agency (EPA) accounts for a background O3 level above which risk to human health is assessed. Since

Liu, Hongyu

93

Laboratory studies of the sensitivity of tropospheric ozone to the chemistry of sea salt aerosol. Final report, September 15, 1993--September 14, 1994  

SciTech Connect (OSTI)

Ozone plays a critical role in both the chemistry and radiation balance of the troposphere. Understanding the factors controlling tropospheric ozone levels is critical to our understanding of a variety of issues in global chemistry and climate change. Chlorine atoms have the potential to contribute significantly to the ozone balance in the free troposphere. They can react directly with ozone or alternately, with organics and may actually lead to the formation of ozone in the presence of sufficient NO. Reactions of alkali halides in sea salt particles are a potential source of atomic chlorine, hence reactions of these alkali halides, especially those producing precursors to atomic chlorine, are of great interest. Finally, the mechanisms, intermediates and products of the Cl-biogenic reactions are unknown; these could serve as unique markers of chlorine atom chemistry in the troposphere, and hence are important to define.

Finlayson-Pitts, B.J.

1994-11-15T23:59:59.000Z

94

Ground water and energy  

SciTech Connect (OSTI)

This national workshop on ground water and energy was conceived by the US Department of Energy's Office of Environmental Assessments. Generally, OEA needed to know what data are available on ground water, what information is still needed, and how DOE can best utilize what has already been learned. The workshop focussed on three areas: (1) ground water supply; (2) conflicts and barriers to ground water use; and (3) alternatives or solutions to the various issues relating to ground water. (ACR)

Not Available

1980-11-01T23:59:59.000Z

95

Ground water provides drinking water, irrigation for  

E-Print Network [OSTI]

Ground water provides drinking water, irrigation for crops and water for indus- tries. It is also connected to surface waters, and maintains the flow of rivers and streams and the level of wetlands- tion of those along Lake Michigan, most communi- ties, farms and industries still rely on ground water

Saldin, Dilano

96

Southern Hemisphere Additional Ozonesondes (SHADOZ) 19982000 tropical ozone climatology  

E-Print Network [OSTI]

ozone record from Paramaribo, Surinam (6°N, 55°W) (also in SHADOZ) shows a marked contrast to southern tropical ozone because Surinam is often north of the Intertropical Convergence Zone (ITCZ). A more

Thompson, Anne

97

Concentration of ozone in surface air over greater Boston  

E-Print Network [OSTI]

Surface ozone concentrations were measured in the Greater Boston area from November, 1964 to December, 1965. Ozone was monitored continuosly using a Mast microcoulombmetric sensor. A chromium trioxide filter was fitted to ...

Widen, Donald Allen

1966-01-01T23:59:59.000Z

98

Open-path ozone detection by quantum-cascade laser  

Science Journals Connector (OSTI)

Open-path ozone measurements performed by mid-IR differential absorption spectroscopy are reported. Ozone spectrum was taken by fast repetitive sweeping of a quantum-cascade laser wavelength over a spectral featu...

M. Taslakov; V. Simeonov; M. Froidevaux; H. van den Bergh

2006-03-01T23:59:59.000Z

99

Chemistry climate model simulations of1 spring Antarctic ozone  

E-Print Network [OSTI]

013577. 1. Introduction [2] Since its discovery [Farman et al., 1985], the Antarctic ozone hole has been

Wirosoetisno, Djoko

100

Attribution of the Arctic ozone column deficit in March 2011  

E-Print Network [OSTI]

Toronto, Ont. , Canada. Farman, J. C. , B. G. Gardiner, andthe Antarctic ozone hole [Farman et al. , 1985]. [ 13

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Ozone treatment in a closed culture system for Macrobrachium rosenbergii  

E-Print Network [OSTI]

constant flow of air. The Orthotoridine-Manganese Method (OTM) wss employed to measure ozone in solution (APHA, 1976) . Because of the rapid rate of decomposition of ozone in water, it was determined that the production of ozone could not be measured... by introducing into water and then sampling that water for analysis with OTM. Therefore, ozone was introduced directly into a solution of OTM reagent with subsequent changes in color of the reagent, measured on a "B & L Spectronic 70" spectrophotometer, being...

Yamaguchi, Ryoji

1978-01-01T23:59:59.000Z

102

GROUND LEVEL INVESTIGATION OF ANOMALOUS RADIATION LEVELS IN NIAGARA...  

Office of Legacy Management (LM)

Oak Ridge, Tennessee 37630 O&J. 2,7 +, 7&y' March 1979 operated by UNION CARBIDE CORPORATIOII for the DEPARTMENT OF ENERGY as part of the Formerly Utilized Sites-...

103

Ground Vibration Measurement  

Science Journals Connector (OSTI)

Measurement of ground vibration is important for checking of amplitudes of ... confirmation of efficiency of control measures of ground vibration. The properties of measuring instruments used can affect the resul...

Dr. Milutin Srbulov

2010-01-01T23:59:59.000Z

104

Effects of pulp consistency and mixing intensity on ozone bleaching  

SciTech Connect (OSTI)

Conventional wisdom holds that ozone bleaching is feasible only at low or high pulp consistencies. However, recent research suggests that ozone bleaching at medium consistency is possible under conditions of high-intensity mixing. This article presents experimental results for softwood and hardwood pulps that were ozone-bleached over a range of consistencies (3-40%) and mixing conditions. Ozone was pressurized and delivered by a proprietary automated system. Results indicate that ozone bleaching at medium consistency can be as effective as bleaching at high consistency. Medium-consistency bleaching has the advantage of greater selectivity, resulting in higher pulp viscosity.

Hurst, M.M. (Quantum Technologies, Inc., Twinsburg, OH (United States))

1993-04-01T23:59:59.000Z

105

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

SciTech Connect (OSTI)

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

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

2011-05-01T23:59:59.000Z

106

Appendix D Surface Water and Ground Water Time-Concentration Plots,  

Office of Legacy Management (LM)

Surface Water and Ground Water Time-Concentration Plots, Surface Water and Ground Water Time-Concentration Plots, Stream Discharge Measurements, Ground Water Level Data, and Ground Water Well Hydrographs This page intentionally left blank Contents Section .................................................................................. Surface Water Time-Concentration Plots D1.O ............................................................................................... Stream Discharge Measurements D2.0 ............................................................. Ground Water Time-Concentration Plots for Uranium D3.0 .......................................................................................................... Ground Water Level Data D4.0 ..............................................................................................

107

AutoGC systems for enhanced ozone monitoring network  

SciTech Connect (OSTI)

In response to a requirement for an on-line, automated ozone-precursor analyzer, a Perkin-Elmer Model ATD-400 Thermal Desorption System was specially adapted for the collection of whole-air samples. The C{sub 2} to n-C{sub 10} hydrocarbons were trapped using Peltier cooling on adsorbents at {minus}30 C. Multidimensional chromatography allowed the C{sub 2} to C{sub 6} fraction to be separated using a porous layer open tubular column while a methyl silicone column separated the C{sub 6} to C{sub 10} fraction. No cryogen was used in the collection or analysis. An air generator equipped for automatic restart and special software allowed the system to recover from power failures. Ozone precursor concentrations were detected over 5000 hours of continuous operation at the 0.1 ppbV level. Area repeatability was less than 10%, with retention time precision over 100 hours of approximately 1%RSD for most compounds. Remote communications allowed chromatography to be monitored and files to be downloaded to a central office. Results were converted to EPA AIRS database format using special conversion software. Data were archived using external Bernoulli disks.

Seeley, I. [Perkin-Elmer Corp., Norwalk, CT (United States)

1995-12-31T23:59:59.000Z

108

NASA reports drop in stratospheric ozone  

Science Journals Connector (OSTI)

NASA reports drop in stratospheric ozone ... "I believe I have that evidence," asserts NASA's Heath, adding: "It's not the proof—that will take much more work. ... Public release of the NASA data analysis is somewhat premature, he says, because the paper has not yet been published. ...

1981-08-24T23:59:59.000Z

109

Nuclear conflict and ozone depletion Quick summary  

E-Print Network [OSTI]

Nuclear conflict and ozone depletion Quick summary o Regional nuclear war could cause global which traps pollutants o Nuclear weapons cause explosions, which then causes things around the vicinity to start burning, which in turn releases black carbon; it is not the nuclear material or fallout causing

Toohey, Darin W.

110

Evaluating the importance of innovative heterogeneous chemistry to explain observed stratospheric ozone depletion  

SciTech Connect (OSTI)

Currently, there is a widespread search for additional heterogeneous reactions or combination of heterogeneous and homogeneous (gas-phase) reactions that could catalytically reduce ozone to observed levels. In 1992, Burley and Johnston proposed that nitrosyl sulfuric acid (NSA) NOHSO{sub 4}, is a promising heterogeneous reactant for activating HCl in sulfuric acid particles. They list several sources for producing it in the stratosphere and they carried out thermodynamic and chemical kinetic calculations at one stratospheric altitude and at one latitude. NSA has been overlooked in all previous stratospheric model calculations, even though it has been observed in stratospheric sulfate aerosols. This study makes large scale atmospheric model calculations to test the proposal by Burley and Johnston that a promising heterogeneous process for activating HCl in sulfuric acid particles is a catalytic coupled based on nitrosyl sulfuric acid (NSA). This mechanism is examined under non-volcanic and volcanic conditions representative of the recent eruption of Mt. Pinatubo. The calculations set firm limits on the range of kinetic parameters over which this heterogeneous processes would be important in the global ozone balance, and thus is a guide for where laboratory work is needed. In addition, they have derived a preliminary time-dependent integration (1980--1994) to represent the observed trend in ozone. Comparison between model-derived and the observed ozone trend will be compared.

Kinnison, D.E.; Connell, P.S. [Lawrence Livermore National Lab., CA (United States). Atmospheric Science Div.

1996-02-27T23:59:59.000Z

111

Substation grounding optimization.  

E-Print Network [OSTI]

??Substation grounding is a critical part of the overall electric power system. It is designed to not only provide a path to dissipate electric currents… (more)

Balev, Vadim

2014-01-01T23:59:59.000Z

112

Substation grounding programs  

SciTech Connect (OSTI)

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 3, is a users manual and an installation and validation manual for the computer program SGSYS (Substation Grounding SYStem Analysis Program). This program analyzes the substation ground field given the total electric current injected into the ground field and the design of the grounding system. Standard outputs of the program are (1) total ground resistance, (2) step voltage, (3) touch voltage, (4) voltages on a grid of points, (5) voltage profile along straight lines, (6) transfer voltages, (7) ground potential rise, (8) body currents, (9) step voltage profile along straight lines, and (10) touch voltage profile along straight lines. This program can be utilized in an interactive or batch mode. In the interactive mode, the user defines the grounding system geometry, soil parameters, and output requests interactively, with the use of a user friendly conversational program. The users manual describes data requirements and data preparation procedures. An appendix provides forms which facilitate data collection procedures. The installation and validation manual describes the computer files which make up the program SGSYS and provides a test case for validation purposes.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

113

Substation grounding programs  

SciTech Connect (OSTI)

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. It can be used to compute transient ground potential rise due to lightning or switching, and the ground impedance (i.e. resistance and reactance) at specified frequencies. This report, Volume 4, is a users manual and an installation and validation manual for the computer program TGRND (Transient GRouNDing System Analysis Program). This program computes transient ground potential rise resulting from lightning, switching, or other transient electric currents injected to a grounding system. The program also computes the impedance (i.e. resistance and reactance) of a grounding system as a function of frequency. This program can be utilized in an interactive or batch mode. The users manual describes data requirements and data preparation procedures. The installation and validation manual describes the computer files which make up the program TGRND and provides a test case for validation purposes.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

114

Ground Motion Workshop  

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

2nd Advanced ICFA Beam Dynamics Workshop 2nd Advanced ICFA Beam Dynamics Workshop on Ground Motion in Future Accelerators November 6 - 9, 2000 SLAC Coordinators: Andrei Seryi & Tor Raubenheimer Proceedings Updated June 26, 2001 Agenda and Presentations Workshop photos Summaries Useful links Poster Goals Introduction to the problems Structure Registration Registered participants Committees Location, Accommodations and Travel Workshop on Ground Motion in Future Accelerators A workshop was held at SLAC that was devoted to ground motion and its effects on future accelerators. Ground motion and vibration can be a limiting effect in synchrotron light sources, hadron circular colliders, and electron/positron linear colliders. Over the last several years, there has been significant progress in the understanding of the ground motion and its effects, however, there are

115

Retrieval of ozone and nitrogen dioxide concentrations from Stratospheric Aerosol and Gas Experiment III (SAGE III)  

E-Print Network [OSTI]

Retrieval of ozone and nitrogen dioxide concentrations from Stratospheric Aerosol and Gas extinction. We retrieve ozone and nitrogen dioxide number densities and aerosol extinction from transmission), Retrieval of ozone and nitrogen dioxide concentrations from Stratospheric Aerosol and Gas Experiment III

116

Satellite observations of ozone and nitrogen dioxide: from retrievals to emission estimates  

E-Print Network [OSTI]

Satellite observations of ozone and nitrogen dioxide: from retrievals to emission estimates #12 Satellite observations of ozone and nitrogen dioxide: from retrievals to emission es- timates / by Bas Subject headings: satellite retrieval / nitrogen dioxide / ozone / air pollution / emis- sion estimates

Haak, Hein

117

Laboratory measurement of secondary pollutant yields from ozone reaction with HVAC filters.  

E-Print Network [OSTI]

Ozone Reaction with HVAC Filters Hugo Destaillats, WenhaoOzone Reaction with HVAC Filters Hugo Destaillats 1,3,* ,Ozone Reaction with HVAC Filters Hugo Destaillats 1,3,* ,

Destaillats, Hugo

2012-01-01T23:59:59.000Z

118

The effects of ethylenediurea and sodium erythorbate on photosynthetic function of ozone-exposed loblolly pine seedlings  

E-Print Network [OSTI]

-top chambers in east Texas for one growing season beginning in April 1994 while being exposed to either sub-ambient (CF), approximate ambient (NF), 1.5Y,, 2.OX, or 2.5X ambient ozone levels. Net photosynthesis (A), stomatal conductance (g), and chloroplast...

Kuehler, Eric Anthony

2012-06-07T23:59:59.000Z

119

International aspects of restrictions of ozone-depleting substances  

SciTech Connect (OSTI)

This report summarizes international efforts to protect stratospheric ozone. Also included in this report is a discussion of activities in other countries to meet restrictions in the production and use of ozone-depleting substances. Finally, there is a brief presentation of trade and international competitiveness issues relating to the transition to alternatives for the regulated chlorofluorocarbons (CFCs) and halons. The stratosphere knows no international borders. Just as the impact of reduced stratospheric ozone will be felt internationally, so protection of the ozone layer is properly an international effort. Unilateral action, even by a country that produces and used large quantities of ozone-depleting substances, will not remedy the problem of ozone depletion if other countries do not follow suit. 32 refs., 7 tabs.

McDonald, S.C.

1989-10-01T23:59:59.000Z

120

Ozone chemistry in the smoke from the Kuwait oil fires  

SciTech Connect (OSTI)

Ozone depletion occurred in the core of the plume of smoke from the Kuwait oil fires within 100 km of the fires, primarily in regions where NO{sub x} concentrations were high and ultraviolet flux was near zero. Rapid conversion of NO to NO{sub 2} can explain almost all of the ozone loss. Ozone was produced in diffuse regions of the plume, where the ultraviolet flux was higher than in the core. However, due to the relatively high ratio of nonmethane hydrocarbons to NO{sub x}, ozone production was slow. Since ozone was produced in a much larger volume than it was depleted, the plume as a whole was a source of ozone on a regional scale. 27 refs., 4 figs., 1 tab.

Herring, J.A.; Hobbs, P.V. [Univ. of Washington, Seattle, WA (United States)

1992-09-20T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Ozone Removal by Filters Containing Activated Carbon: A Pilot Study  

SciTech Connect (OSTI)

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

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

2009-09-01T23:59:59.000Z

122

Ozone heating and the destabilization of traveling waves during summer  

SciTech Connect (OSTI)

The effects of ozone heating on the linear stability of lower stratospheric traveling waves of the summertime, extratropical circulation are examined. Based on coupled equations for the quasigeostrophic potential vorticity and ozone volume mixing ratio, it is shown that the diabatic heating arising from ozone advection can offset the damping due to Newtonian cooling, leading to wave amplification and significant changes in the structure and zonally rectified fluxes of the wave fields in both the lower stratosphere and troposphere. The vertical profile of the zonal mean wind plays a crucial role in determining whether the ozone heating destabilizes eastward and/or westward traveling disturbances.

Nathan, T.R.; Cordero, E.C.; Li, L. [Univ. of California, Davis, CA (United States)] [Univ. of California, Davis, CA (United States)

1994-07-01T23:59:59.000Z

123

E-Print Network 3.0 - arctic ozone depletion Sample Search Results  

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

1 Introduction Stratospheric ozone depletion has been one... (Chubachi, 1984; Farman et al., 1985), winter ozone ... Source: Ecole Polytechnique, Centre de mathmatiques...

124

E-Print Network 3.0 - antarctic ozone experiment Sample Search...  

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

in the 1980s of anomalously low ozone column abundances over the Antarctic by Farman et al. (1985... ), ozone abundances in the Antarctic ... Source: Ecole Polytechnique,...

125

E-Print Network 3.0 - airborne antarctic ozone Sample Search...  

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

in the 1980s of anomalously low ozone column abundances over the Antarctic by Farman et al. (1985... ), ozone abundances in the Antarctic ... Source: Ecole Polytechnique,...

126

Effects of particulate air pollution and ozone on lung function in non-asthmatic children  

Science Journals Connector (OSTI)

AbstractIntroduction Information on the long-term effects of different air pollutant levels on lung function is relatively lacking in Asia and still inconclusive in the world. Age differential effects of air pollution are not known. Objectives To assess the acute and subchronic effects of ambient air pollution on lung function and compared among children of different ages. Methods From April to May 2011, a nationwide study was conducted on schoolchildren aged 6–15 years in 44 schools of 24 districts in Taiwan. Spirograms were obtained from 1494 non-asthmatic children. Air pollution data were retrieved from air monitoring stations within one kilometre of the schools. Using three-level hierarchical linear models, individual lung function was fitted to air pollution, with adjustments for demographics, indoor exposures, outdoor activity, and districts. Results Lung function changes per inter-quartile increase of the past two-months average levels of particulate matter <2.5 ?m (PM2.5) and ozone (12 ?g/m3, 32–44 and 6.7 ppb, 32–38, respectively) were ?103 and ?142 ml on FVC, ?86 and ?131 on FEV1, and ?102 and ?188 ml/s on MMEF, respectively. Lag-1-day ozone exposure was associated with decreased MMEF. In children aged 6–10, PM2.5 was associated with decreased FEV1/FVC and MMEF/FVC ratios. Conclusions In children aged 6–15 years, sub-chronic exposure to ambient PM2.5 and ozone leads to reduced lung capacity, whereas acute exposure to ozone decreases mid-expiratory flow. In children aged 6–10 years, additional airway obstructive patterns in lung function may be associated with PM2.5 exposure.

Chi-Hsien Chen; Chang-Chuan Chan; Bing-Yu Chen; Tsun-Jen Cheng; Yue Leon Guo

2015-01-01T23:59:59.000Z

127

Substation grounding programs  

SciTech Connect (OSTI)

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 2, is a users manual and an installation and validation manual for the computer program SMECC (Substation Maximum Earth Current Computation Program). This program analyzes the electric current distribution among grounded structures inside and outside a substation for different fault conditions. The fault conditions are automatically selected by the program, or they may be specified by the user, or both. The fault condition resulting in maximum substation earth current is identified and reported. Data requirements for this program are: ground impedance, transformer data, transmission line data, transmission line grounding impedances, etc. The program provides four types of standard outputs: (1) a report of voltages and current flow in the unfaulted system, (2) a brief report of the maximum ground potential rise (worst fault condition), (3) a summary report of all fault conditions which have been analyzed by the program, and (4) a detailed report of voltages and current flow for a selected set of fault conditions.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

128

The influence of climate change and the timing of stratospheric warmings on Arctic ozone depletion  

SciTech Connect (OSTI)

A three-dimensional model is presented to evaluate the influence of climatic change and increased carbon dioxide concentrations on ozone depletion in the Arctic region. Satellite data showing the time of stratospheric warmings during the winters of 1979-1992 is used in a series of idealized experiments where the timing of the warmings is varied by using different geopotential wave amplitudes. Results of the experiments indicate that for doubled atmospheric carbon dioxide levels, an ozone hole in the Arctic is more likely to develop during years where late stratospheric warming has occurred after a relatively quiescent winter. The validity of this model is dependent on the future composition and temperature of the stratosphere. 43 refs., 21 figs.

Austin, J. [Meteorological Office, Bracknell (United Kingdom)] [Meteorological Office, Bracknell (United Kingdom); Butchart, N. [Hadley Centre for Climate Prediction and Research, Bracknell (United Kingdom)] [Hadley Centre for Climate Prediction and Research, Bracknell (United Kingdom)

1994-01-20T23:59:59.000Z

129

Quantifying Denitrification and Its Effect on Ozone Recovery  

Science Journals Connector (OSTI)

...Effect on Ozone Recovery 10.1126...USA. 3 Atmospheric and Environmental...effects on ozone recovery in a colder and possibly...below the condensation point of...37) [or water vapor (38...5 ppm for water vapor. The atmospheric concentrations...

A. Tabazadeh; M. L. Santee; M. Y. Danilin; H. C. Pumphrey; P. A. Newman; P. J. Hamill; J. L. Mergenthaler

2000-05-26T23:59:59.000Z

130

Massive global ozone loss predicted following regional nuclear conflict  

Science Journals Connector (OSTI)

...particles, which in turn heat the ambient air, causing...Heterogeneous reaction of ozone with hydrocarbon flame soot . Phys Chem Chem Phys...and nonreactive uptake on hydrocarbon soot: HNO 3 , O 3 , and N 2...the reaction of ozone with combustion soot: Implications for reactivity...

Michael J. Mills; Owen B. Toon; Richard P. Turco; Douglas E. Kinnison; Rolando R. Garcia

2008-01-01T23:59:59.000Z

131

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

E-Print Network [OSTI]

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

Siegel, Jeffrey

132

URBAN OZONE CONCENTRATION FORECASTING WITH ARTIFICIAL NEURAL NETWORK IN CORSICA  

E-Print Network [OSTI]

Perceptron; Ozone concentration. 1. Introduction Tropospheric ozone is a major air pollution problem, both, Ajaccio, France, e-mail: balu@univ-corse.fr Abstract: Atmospheric pollutants concentration forecasting is an important issue in air quality monitoring. Qualitair Corse, the organization responsible for monitoring air

Boyer, Edmond

133

Effects of 20002050 changes in climate and emissions on global tropospheric ozone and the policy-relevant background surface ozone  

E-Print Network [OSTI]

) project major changes in anthro- pogenic emissions of greenhouse gases and ozone precur- sors over the 2Effects of 2000­2050 changes in climate and emissions on global tropospheric ozone and the policy; published 27 September 2008. [1] We use a global chemical transport model (GEOS-Chem) driven by a general

Mickley, Loretta J.

134

Substation grounding programs  

SciTech Connect (OSTI)

This document is a users manual and applications guide for the software package SGA. This package comprises four computer programs, namely SOMIP, SMECC, SGSYS, and TGRND. The first three programs are analysis models which are to be used in the design process of substation grounding systems. The fourth program, TGRND, is an analysis program for determining the transient response of a grounding system. This report, Volume 5, is an applications guide of the three computer programs. SOMIP, SMECC, and SGSYS, for the purpose of designing a safe substation grounding system. The applications guide utilizes four example substation grounding systems for the purpose of illustrating the application of the programs, SOMIP, SMECC, and SGSYS. The examples are based on data provided by four contributing utilities, namely, Houston Lighting and Power Company, Southern Company Services, Puget Sound Power and Light Company, and Arizona Public Service Company. For the purpose of illustrating specific capabilities of the computer programs, the data have been modified. As a result, the final designs of the four systems do not necessarily represent actual grounding system designs by these utilities. The example system 1 is a 138 kV/35 kV distribution substation. The example system 2 is a medium size 230 kV/115 kV transmission substation. The third example system is a generation substation while the last is a large 525 kV/345 kV/230 kV transmission substation. The four examples cover most of the practical problems that a user may encounter in the design of substation grounding systems.

Meliopoulos, A.P.S. (Georgia Inst. of Tech., Atlanta, GA (United States). Electric Power Lab.)

1992-05-01T23:59:59.000Z

135

Proceedings: Indoor Air 2005 REACTIONS BETWEEN OZONE AND BUILDING PRODUCTS: IMPACT ON  

E-Print Network [OSTI]

Proceedings: Indoor Air 2005 2118 REACTIONS BETWEEN OZONE AND BUILDING PRODUCTS: IMPACT ON PRIMARY of reactions of ozone on building products and on their emissions in indoor air. For this purpose, 12 building products were exposed to ozone in a dedicated experimental setup. The measured ozone removal rate

Paris-Sud XI, Université de

136

Sensitivity Analysis of Ozone Formation and Transport for a Central  

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

Sensitivity Analysis of Ozone Formation and Transport for a Central Sensitivity Analysis of Ozone Formation and Transport for a Central California Air Pollution Episode Title Sensitivity Analysis of Ozone Formation and Transport for a Central California Air Pollution Episode Publication Type Journal Article Year of Publication 2008 Authors Jin, Ling, Shaheen R. Tonse, Daniel S. Cohan, Xianglei Mao, Robert A. Harley, and Nancy J. Brown Journal Environmental Science & Technology Volume 42 Start Page 3683 Issue 10 Pagination 3683-3689 Date Published 05/2008 Abstract We developed a first- and second-order sensitivity analysis approach with the decoupled direct method to examine spatial and temporal variations of ozone-limiting reagents and the importance of local vs upwind emission sources in the San Joaquin Valley of central California for a 5 day ozone episode (Jul 29th to Aug 3rd, 2000). Despite considerable spatial variations, nitrogen oxides (NOx) emission reductions are overall more effective than volatile organic compound (VOC) control for attaining the 8 h ozone standard in this region for this episode, in contrast to the VOC control that works better for attaining the prior 1 h ozone standard. Interbasin source contributions of NOx emissions are limited to the northern part of the SJV, while anthropogenic VOC (AVOC) emissions, especially those emitted at night, influence ozone formation in the SJV further downwind. Among model input parameters studied here, uncertainties in emissions of NOx and AVOC, and the rate coefficient of the OH + NO2 termination reaction, have the greatest effect on first-order ozone responses to changes in NOx emissions. Uncertainties in biogenic VOC emissions only have a modest effect because they are generally not collocated with anthropogenic sources in this region.

137

Carbon Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related  

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

Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related Emission Requirements (Ohio) Carbon Monoxide, Ozone, Hydrocarbon Air Quality Standards, and Related Emission Requirements (Ohio) < Back Eligibility Agricultural Commercial Construction Fuel Distributor Industrial Institutional Investor-Owned Utility Local Government Municipal/Public Utility Rural Electric Cooperative State/Provincial Govt Transportation Tribal Government Utility Savings Category Buying & Making Electricity Program Info State Ohio Program Type Environmental Regulations Provider Ohio Environmental Protection Agency This chapter defining the roles of the Ohio Environmental Protection Agency gives specific detail on the regulation point-source air pollution for a variety of industries and pollutants.

138

The Solubility of Oxygen and Ozone in Liquids  

Science Journals Connector (OSTI)

This review covers the solubility of oxygen and ozone in liquids as a function of temperature and pressure. Solubility data for individual systems were critically evaluated and recommended or tentative values presented in many cases. The trend of solubilities in homologous series or related solvents is discussed. Liquids include water;seawater; aqueous salt solutions; mixed solvents; hydrocarbons; organic compounds containing oxygen halogen sulfur nitrogen or silicon; olive oil; and human blood. For ozone only its solubility in water is presented. Key words: aqueous solutions; biological fluids; gas solubility; hydrocarbons; mixed solvents; organic solvents; oxygen; ozone;seawater;water.

Rubin Battino; Timothy R. Rettich; Toshihiro Tominaga

1983-01-01T23:59:59.000Z

139

Engine ground demonstration test approach  

SciTech Connect (OSTI)

The hardware portion of the current phase of the Integrated Solar Upper Stage (ISUS) program culminates in a system ground demonstration test. The potential application of ISUS technology to a wide array of future missions complicates the process of selecting from among demonstration system design options and test approaches. The approach to this system demonstration has been to maximize system technology readiness level for the entire array of potential missions within the constraints of the program. To this end, system design and test operations planning has been carried out with a premium on demonstrating those elements of the system common to all missions. In addition, test planning has been managed to allow margin for testing those portions of the system envelope needed to confirm acceptable operation for scenarios within the mission set that are specific to a given mission or mission type. Examples drawn from the specific Engine Ground Demonstration (EGD) design selections are used to illuminate this approach, with the result that the EGD system design is not only described, but the reasons for its particular characteristics are made evident.

Kudija, C.T. [Rockwell Aerospace, Canoga Park, CA (United States). Rocketdyne Div.

1996-12-31T23:59:59.000Z

140

Surfactants for ground water remediation  

Science Journals Connector (OSTI)

Ground water contamination is a most intractable form of pollution. Spilled solvent or fuel liquids are trapped below the water table by colloidal forces. Surfactants may be used to dramatically improve contaminated aquifer remediation rates. Principal remediation mechanisms include micellar solubilization and mobilization of the trapped liquids by lowering of the oil/water interfacial tension. Surfactant selection is a key to the successful design of a remediation effort, and involves consideration of factors including Krafft Point, surfactant adsorption onto the aquifer solids, and the phase behavior of the oil/water/surfactant system. Successful field demonstrations have occurred in recent months and the technology is moving rapidly toward commercialization. Critical research issues remain including acceptable clean-up levels, surfactant/contaminant in situ biodegradation rates, and surfactant decontamination and reuse.

Jeffrey H. Harwell; David A. Sabatini; R.C. Knox

1999-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Ground Squirrels and Gophers  

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

Squirrels and Gophers Squirrels and Gophers Nature Bulletin No. 224-A April 2, 1966 Forest Preserve District of Cook County Seymour Simon, President Roland F. Eisenbeis, Supt. of Conservation GROUND SQUIRRELS AND GOPHERS On sunny summer days, a dusty-colored animal with yellowish and brown stripes, about the size of a small rat, often may be noticed creeping through the grass of prairies, pastures, golf courses or lawns. Watch him. He pauses every few feet to sit up, look and listen for a moment. Nervous and timid, he crouches low at every distant sound or passing shadow. Startle him and he scurries away, and then may suddenly halt and freeze, bolt upright, as stiff and straight as a stake driven in the ground. If approached, he gives a loud shrill trilling whistle and, with a flip of his tail, pops out of sight. Watch that spot closely and, in less than a minute, a snaky head appears. Be quiet. He has many enemies above ground and he also has a lot of curiosity. Presently he sits up upon his haunches again.

142

Ozone concentrations in El Paso, Texas  

SciTech Connect (OSTI)

El Paso, Texas may have a problem in meeting ambient air standards due to influx of pollutants from foreign sources. Cd. Juarez, Chihuahua, and Fort Bliss abut the city and are areas over which the Texas Air Control Board (TACB) has little or no jurisdiction. The Board maintains two Continuous Air Monitoring Stations (CAM) in El Paso. Ozone, nitric oxide, and nitrogen dioxide data were obtained from these stations. If the EPA Empirical Kinetic Model is used for El Paso, reducing NMHC concentrations may increase rather than decrease O/sub 3/ concentrations. The Texas State Implementation Plan, while not based on Empirical Kinetic Modeling, calls for a reduction of 18% in NMHC. However, 31% of all NMHC in El Paso arise from sources over which Texas had little (a federal military reservation) or no (Cd. Juarez) jurisdiction. It appears the TACB is correct in believing the SIP for O/sub 3/ may not bring El Paso into compliance. (JMT)

Crocker, J.E. (Texas Air Control Board, Austin); Applegate, H.G.

1983-02-01T23:59:59.000Z

143

The Ozone Dilemma: a reference handbook (Contemporary World Issues Series)  

E-Print Network [OSTI]

Dilemma: a reference handbook By David E. Newton Reviewed byDilemma: a reference handbook (Contemporary World IssuesThe Ozone Dilemma: a reference handbook is targeted at both

Li, Haipeng

1997-01-01T23:59:59.000Z

144

Ground Water Recovery and Treatment  

Science Journals Connector (OSTI)

Until the environmental revolution, the only ground water that was routinely treated to remove contamination was the impacted ground water that was extracted for beneficial use. With ... the recognition that cont...

Tie Li Ph.D.; Raaj U. Patel P.G.; David K. Ramsden Ph.D.…

2003-01-01T23:59:59.000Z

145

Auto GC system for enhanced ozone monitoring network  

SciTech Connect (OSTI)

A Perkin-Elmer Model ATD-400 Thermal Desorption System was specially adapted for the collection of whole-air samples. The C{sub 2} to n-C{sub 10} hydrocarbons were trapped using Peltier cooling on Carbotrap/Carbosieve adsorbents at {minus}30 C. A Deans switch allowed the C{sub 2} to C{sub 6} fraction to be separated using a porous layer open tubular column while a methyl silicone column separated the C{sub 6} to C{sub 10} fraction. No cryogen was used in the collection or analysis. Ozone precursor concentrations were detected at the 0.1 ppbV level. Area repeatability was less than 10%, with retention time precision over 100 hours of approximately 1% RSD for most compounds. Remote communications allowed chromatography to be monitored and files to be downloaded to a central office. Data in .CSV format was directly assimilated by spreadsheet software for diurnal inspection and customized reporting. Data were achieved using external Bernoulli disks.

Seeley, I.; Tipler, A. [Perkin-Elmer Corp., Norwalk, CT (United States); Broadway, G. [Perkin-Elmer Ltd., Beaconsfield (United Kingdom)

1994-12-31T23:59:59.000Z

146

Study to determine the nature and extent of ozone and ozone precursor transport in selected areas of California. Final report  

SciTech Connect (OSTI)

The project was designed to assess the contribution of transported pollutants to violations of the state ozone standard within the air basins covered by the report using existing data and advanced data analysis techniques. The objectives of the project were to determine the characteristics of ozone and ozone precursor transport within the California air basins covered by the report and to identify whether the contribution of transported pollutants to ozone violations in each downwind area was inconsequential, significant, or overwhelming, relative to locally-emitted pollutants. The precursor pollutants of interest were nitrogen oxides and reactive organic gases. The project evaluated transport to the following areas: The Broader Sacramento Area and the Upper Sacramento Valley; The North Central Coast Air Basin; The Southeast Desert Air Basin (SEDAB); and the Imperial County portion of the SEDAB.

Roberts, P.T.; Musarra, S.; Smith, T.B.; Lurmann, F.W.

1992-04-01T23:59:59.000Z

147

Catalytic ozonation of phenol in water with natural brucite and magnesia  

Science Journals Connector (OSTI)

Natural brucite and magnesia were applied as catalysts in catalytic ozonation of phenol in this work. It was found that both brucite and magnesia had remarkable accelerations on degradation of phenol and removal of COD in water. On this basis, effective and feasible routes for catalytic ozonation of phenol in water were proposed. The influence of initial pH value, radical scavengers and reaction temperature were investigated. The results revealed that there were different ozonation mechanisms in two systems: molecular ozone direct oxidation mechanism was proved in catalytic ozonation with brucite, and hydroxyl radical mechanism was demonstrated to play a main role in catalytic ozonation with magnesia.

Kun He; Yu Ming Dong; Zhen Li; Lin Yin; Ai Min Zhang; Yi Chun Zheng

2008-01-01T23:59:59.000Z

148

Hanford Site ground-water monitoring for 1994  

SciTech Connect (OSTI)

This report presents the results of the Ground-Water Surveillance Project monitoring for calendar year 1994 on the Hanford Site, Washington. Hanford Site operations from 1943 onward produced large quantities of radiologic and chemical waste that have impacted ground-water quality on the Site. Monitoring of water levels and ground-water chemistry is performed to track the extent of contamination and trends in contaminant concentrations. The 1994 monitoring was also designed to identify emerging ground-water quality problems. The information obtained is used to verify compliance with applicable environmental regulations and to evaluate remedial actions. Data from other monitoring and characterization programs were incorporated to provide an integrated assessment of Site ground-water quality. Additional characterization of the Site`s geologic setting and hydrology was performed to support the interpretation of contaminant distributions. Numerical modeling of sitewide ground-water flow also supported the overall project goals. Water-level monitoring was performed to evaluate ground-water flow directions, to track changes in water levels, and to relate such changes to changes in site disposal practices. Water levels over most of the Hanford Site continued to decline between June 1993 and June 1994. These declines are part of the continued response to the cessation of discharge to U Pond and other disposal facilities. The low permeability in this area which enhanced mounding of waste-water discharge has also slowed the response to the reduction of disposal.

Dresel, P.E.; Thorne, P.D.; Luttrell, S.P. [and others

1995-08-01T23:59:59.000Z

149

The LOFT Ground Segment  

E-Print Network [OSTI]

LOFT, the Large Observatory For X-ray Timing, was one of the ESA M3 mission candidates that completed their assessment phase at the end of 2013. LOFT is equipped with two instruments, the Large Area Detector (LAD) and the Wide Field Monitor (WFM). The LAD performs pointed observations of several targets per orbit (~90 minutes), providing roughly ~80 GB of proprietary data per day (the proprietary period will be 12 months). The WFM continuously monitors about 1/3 of the sky at a time and provides data for about ~100 sources a day, resulting in a total of ~20 GB of additional telemetry. The LOFT Burst alert System additionally identifies on-board bright impulsive events (e.g., Gamma-ray Bursts, GRBs) and broadcasts the corresponding position and trigger time to the ground using a dedicated system of ~15 VHF receivers. All WFM data are planned to be made public immediately. In this contribution we summarize the planned organization of the LOFT ground segment (GS), as established in the mission Yellow Book 1 . We...

Bozzo, E; Argan, A; Barret, D; Binko, P; Brandt, S; Cavazzuti, E; Courvoisier, T; Herder, J W den; Feroci, M; Ferrigno, C; Giommi, P; Götz, D; Guy, L; Hernanz, M; Zand, J J M in't; Klochkov, D; Kuulkers, E; Motch, C; Lumb, D; Papitto, A; Pittori, C; Rohlfs, R; Santangelo, A; Schmid, C; Schwope, A D; Smith, P J; Webb, N A; Wilms, J; Zane, S

2014-01-01T23:59:59.000Z

150

Proceedings of Healthy Buildings 2009 Paper 141 Removal of Indoor Ozone with Reactive Materials: Preliminary Results and  

E-Print Network [OSTI]

Proceedings of Healthy Buildings 2009 Paper 141 Removal of Indoor Ozone with Reactive Materials air quality. #12;Proceedings of Healthy Buildings 2009 Paper 141 Removing ozone from indoor

Siegel, Jeffrey

151

Ground potential rise monitor  

DOE Patents [OSTI]

A device and method for detecting ground potential rise (GPR) comprising positioning a first electrode and a second electrode at a distance from each other into the earth. The voltage of the first electrode and second electrode is attenuated by an attenuation factor creating an attenuated voltage. The true RMS voltage of the attenuated voltage is determined creating an attenuated true RMS voltage. The attenuated true RMS voltage is then multiplied by the attenuation factor creating a calculated true RMS voltage. If the calculated true RMS voltage is greater than a first predetermined voltage threshold, a first alarm is enabled at a local location. If user input is received at a remote location acknowledging the first alarm, a first alarm acknowledgment signal is transmitted. The first alarm acknowledgment signal is then received at which time the first alarm is disabled.

Allen, Zachery W. (Mandan, ND); Zevenbergen, Gary A. (Arvada, CO)

2012-04-03T23:59:59.000Z

152

E-Print Network 3.0 - atmospheric ozone depletion Sample Search...  

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

H. U., The ozone distributionin the atmosphere,Can. J. Chem., 52, 1491-1504, 1974. Farman, J. C... , Quasi-biennial modulation of the Antarctic ozone ... Source: Bowman,...

153

E-Print Network 3.0 - arctic ozone hole Sample Search Results  

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

The discovery of the ozone hole in the Southern Hemi- sphere... (Chubachi, 1984; Farman et al., 1985), winter ozone losses over the Arctic (e.g. Brune et al., 1991... .,...

154

E-Print Network 3.0 - antarctic ozone depletion Sample Search...  

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

-B and Biosphere." Oecologia 128(1-2): 1-296. (1997). Ozone depletion FAQ Part IV: UV radiation and its effects... -B radiation due to stratospheric ozone depletion on global...

155

Interannual Variations of Total Ozone at Northern Midlatitudes Correlated with Stratospheric EP Flux and Potential Vorticity  

Science Journals Connector (OSTI)

At northern midlatitudes over the 1979–2002 time period, column ozone trends are observed to have maximum negative amplitudes in February and March. Here, the portion of the observed ozone interannual variability and trends during these months ...

L. L. Hood; B. E. Soukharev

2005-10-01T23:59:59.000Z

156

Pilot Scale Study of Excess Sludge Production Reduction in Wastewater Treatment by Ozone  

E-Print Network [OSTI]

Pilot Scale Study of Excess Sludge Production Reduction in Wastewater Treatment by Ozone Yuan Ma-scale reactors were operated at the LaPrairie Wastewater Treatment plant (one control and one ozonated

Barthelat, Francois

157

E-Print Network 3.0 - acid regulates ozone-induced Sample Search...  

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

ozone-induced Search Powered by Explorit Topic List Advanced Search Sample search results for: acid regulates ozone-induced Page: << < 1 2 3 4 5 > >> 1 Plant Molecular Biology 51:...

158

A delayed effect of ozone fumigation on photosynthesis of Norway spruce  

E-Print Network [OSTI]

A delayed effect of ozone fumigation on photosynthesis of Norway spruce D. Eamus1 A.W. Davis J into the long-lastincl effects of ozone fumiga- tion upon photosynthesis of Norway spruce. Measurements were

Paris-Sud XI, Université de

159

Atmospheric Environment 38 (2004) 14251436 A development of ozone abatement strategies for the Grenoble  

E-Print Network [OSTI]

with the time evolution of the ozone isopleths at the maximums locations (south and north west valleys). r 2003

160

Formation of ozone and oxidation of methane in a direct current corona discharge  

E-Print Network [OSTI]

than in the positive corona when using air, while the reverse was observed with oxygen. At low currents and high gas flow rates, the ozone production rate increased linearly with corona current independent of gas flow rate. At high currents... humidity) and positive corona. Their results show: (1) a linear relation between ozone concentration and corona current; (2) an (non- linear) inverse relation between the ozone concentration and air flow; and (3) for a given corona current, the ozone...

Tangirala, Umashanker

1976-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Yields of Secondary Organic Aerosol from Reactions between Ozone and Surface-Adsorbed d-Limonene  

E-Print Network [OSTI]

Yields of Secondary Organic Aerosol from Reactions between Ozone and Surface-Adsorbed d, terpenes can adsorb onto building materials, and Springs et al. (2011) determined that ozone did, in fact, react with terpenes adsorbed to surfaces. The purpose of this work was to determine the yield of ozone

Siegel, Jeffrey

162

PPPL-3281, Preprint: January 1998, UC-426 Synthesis of Ozone at Atmospheric Pressure  

E-Print Network [OSTI]

-coupled plasma (ICP) torch to synthesize ozone at atmospheric pressure is explored. Ozone concentrations up1 PPPL-3281, Preprint: January 1998, UC-426 Synthesis of Ozone at Atmospheric Pressure by a Quenched Induction-Coupled Plasma Torch B.C. Stratton1, R. Knight2, and D.R. Mikkelsen1, A. Blutke3, and J

163

1 Ozone pollution forecasting 3 Herve Cardot, Christophe Crambes and Pascal Sarda.  

E-Print Network [OSTI]

Contents 1 Ozone pollution forecasting 3 Herv´e Cardot, Christophe Crambes and Pascal Sarda. 1;1 Ozone pollution forecasting using conditional mean and conditional quantiles with functional covariates Herv´e Cardot, Christophe Crambes and Pascal Sarda. 1.1 Introduction Prediction of Ozone pollution

Crambes, Christophe

164

Secondary pollutants from ozone reactions with ventilation filters and  

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

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

165

Investigation of formaldehyde and acetaldehyde sampling rate and ozone  

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

Investigation of formaldehyde and acetaldehyde sampling rate and ozone Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers Title Investigation of formaldehyde and acetaldehyde sampling rate and ozone interference for passive deployment of Waters Sep-Pak XPoSure samplers Publication Type Journal Article Year of Publication 2013 Authors Mullen, Nasim A., Marion L. Russell, Melissa M. Lunden, and Brett C. Singer Journal Atmospheric Environment Volume 80 Pagination 184-189 Date Published 12/2013 Keywords aldehyde; exposure; indoor air quality; passive sampler; residential Abstract This study investigated formaldehyde and acetaldehyde passive sampling rates and ozone interference for the DNPH-based Waters Sep-Pak XPoSure sampler. Previous studies have shown that ozone interferes with active sampling by this cartridge. Our study included one laboratory and six field experiments conducted in Northern California homes. Passive sampling rates of 1.10 ± 0.09 and 0.86 ± 0.10 mL/min determined for formaldehyde and acetaldehyde are lower than previously reported. In a controlled laboratory experiment there were small, statistically insignificant impacts of subsequent ozone exposure on formaldehyde and acetaldehyde mass passively collected on the samplers. This sampler is inexpensive, easy to deploy and to transport by mail, and has a high sampling capacity when used passively; it is suitable for a wide-range of monitoring applications. However, the passive sampling rate remains in question given the internally consistent, but different results obtained in our study and the previous study.

166

Ozone induces glucose intolerance and systemic metabolic effects in young and aged brown Norway rats  

SciTech Connect (OSTI)

Air pollutants have been associated with increased diabetes in humans. We hypothesized that ozone would impair glucose homeostasis by altering insulin signaling and/or endoplasmic reticular (ER) stress in young and aged rats. One, 4, 12, and 24 month old Brown Norway (BN) rats were exposed to air or ozone, 0.25 or 1.0 ppm, 6 h/day for 2 days (acute) or 2 d/week for 13 weeks (subchronic). Additionally, 4 month old rats were exposed to air or 1.0 ppm ozone, 6 h/day for 1 or 2 days (time-course). Glucose tolerance tests (GTT) were performed immediately after exposure. Serum and tissue biomarkers were analyzed 18 h after final ozone for acute and subchronic studies, and immediately after each day of exposure in the time-course study. Age-related glucose intolerance and increases in metabolic biomarkers were apparent at baseline. Acute ozone caused hyperglycemia and glucose intolerance in rats of all ages. Ozone-induced glucose intolerance was reduced in rats exposed for 13 weeks. Acute, but not subchronic ozone increased ?{sub 2}-macroglobulin, adiponectin and osteopontin. Time-course analysis indicated glucose intolerance at days 1 and 2 (2 > 1), and a recovery 18 h post ozone. Leptin increased day 1 and epinephrine at all times after ozone. Ozone tended to decrease phosphorylated insulin receptor substrate-1 in liver and adipose tissues. ER stress appeared to be the consequence of ozone induced acute metabolic impairment since transcriptional markers of ER stress increased only after 2 days of ozone. In conclusion, acute ozone exposure induces marked systemic metabolic impairments in BN rats of all ages, likely through sympathetic stimulation. - Highlights: • Air pollutants have been associated with increased diabetes in humans. • Acute ozone exposure produces profound metabolic alterations in rats. • Age influences metabolic risk factors in aging BN rats. • Acute metabolic effects are reversible and repeated exposure reduces these effects. • Ozone metabolic effects are only slightly exacerbated in geriatric rats.

Bass, V. [Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Gordon, C.J.; Jarema, K.A.; MacPhail, R.C. [Toxicity Assessment Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Cascio, W.E. [Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Phillips, P.M. [Toxicity Assessment Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Ledbetter, A.D.; Schladweiler, M.C. [Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Andrews, D. [Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Miller, D. [Curriculum in Toxicology, University of North Carolina, Chapel Hill, NC (United States); Doerfler, D.L. [Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Kodavanti, U.P., E-mail: kodavanti.urmila@epa.gov [Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States)

2013-12-15T23:59:59.000Z

167

Analysis, anaerobic treatment and ozonation of wool scouring wastewater  

SciTech Connect (OSTI)

Wool scouring effluents (WSE) were analyzed by high-resolution gas chromatography-mass spectrometry (HRGC-MS), and then exposed to anaerobic biological treatment using laboratory scale fixed-bed filters. This resulted in a nearly 50% reduction in chemical oxygen demand (COD). Ozonation of the effluent from the biological step led to an even further decrease in total organic carbon (TOC). The fatty acid content of the WSE was affected by both biological treatment and ozonation. Finally, steroids in the WSE underwent reduction reactions when exposed to the anaerobic biological treatment.

Monteverdi, A.; Rindone, B.; Sorlini, C. (Univ. di Milano (Italy)); Andreoni, V. (Univ. di Torino (Italy)); Rozzi, A. (Inst. di Ingegneria Sanitaria del Politechnico di Milano (Italy))

1992-01-01T23:59:59.000Z

168

EPA Final Ground Water Rule  

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

Office of Nuclear Safety and Environment Office of Nuclear Safety and Environment Nuclear Safety and Environment Information Brief HS-20-IB-2007-02 (March 2007) EPA Final Ground Water Rule Safe Drinking Water Act: National Primary Drinking Water Regulations Ground Water Rule - 40 CFR Parts 9, 141 and 142 Final Rule: 71 FR 65574 Effective Date: January 8, 2007 1 RULE SYNOPSIS On November 8, 2006, the U.S. Environmental Protection Agency (EPA) published a final Ground Water Rule (GWR) to promote increased protection against microbial pathogens that may be present in public water systems (PWSs) that use ground water sources for their supply (these systems are known as ground water systems). This Rule establishes a risk-targeted approach

169

On LHCb muon MWPC grounding  

E-Print Network [OSTI]

My goal is to study how a big MWPC system, in particular the LHCb muon system, can be protected against unstable operation and multiple spurious hits, produced by incorrect or imperfect grounding in the severe EM environment of the LHCb experiment. A mechanism of penetration of parasitic current from the ground loop to the input of the front-end amplifier is discussed. A new model of the detector cell as the electrical bridge is considered. As shown, unbalance of the bridge makes detector to be sensitive to the noise in ground loop. Resonances in ground loop are specified. Tests of multiple-point and single-point grounding conceptions made on mock-up are presented.

Kashchuk, A

2006-01-01T23:59:59.000Z

170

Hanford Site ground-water monitoring for 1993  

SciTech Connect (OSTI)

This report presents the results of the Ground-Water Surveillance Project monitoring for calendar year 1993 on the Hanford Site, Washington. Hanford Site operations from 1943 onward produced large quantities of radiological and chemical waste that have impacted ground-water quality on the Site. Monitoring of water levels and ground-water chemistry is performed to track the extent of contamination and trends in contaminant concentrations. The 1993 monitoring was also designed to identify emerging ground-water quality problems. The information obtained is used to verify compliance with applicable environmental regulations and to evaluate remedial actions. Data from other monitoring and characterization programs were incorporated to provide an integrated assessment of Site ground-water quality. Additional characterization of the Site`s geologic setting and hydrology was performed to support the interpretation of contaminant distributions. Numerical modeling of sitewide ground-water flow also supported the overall project goals. Water-level monitoring was performed to evaluate ground-water flow directions, to track changes in water levels, and to relate such changes to changes in site disposal practices. Water levels over most of the Hanford Site continued to decline between June 1992 and June 1993. The greatest declines occurred in the 200-West Area. These declines are part of the continued response to the cessation of discharge to U Pond and other disposal facilities. The low permeability in this area which enhanced mounding of waste-water discharge has also slowed the response to the reduction of disposal. Water levels remained nearly constant in the vicinity of B Pond, as a result of continued disposal to the pond. Water levels measured from wells in the unconfined aquifer north and east of the Columbia River indicate that the primary source of recharge is irrigation practices.

Dresel, P.E.; Luttrell, S.P.; Evans, J.C. [and others

1994-09-01T23:59:59.000Z

171

The effect of solids retention time on tertiary ozonation and carbon adsorption of petrochemical wastewaters  

E-Print Network [OSTI]

and biochemical oxygen demands were measured before and after ozaontion as well as the amount of ozone consumed. Non-adsorbable COD was measured and a comparison of ozonized and unozonized wastewater made. BOD concentration rose after ozonation, but decreased... of solids retention time on nonadsorbable COD, with and without ozonation. 39 LIST OF TABLES Table Page Biochemical and chemical oxygen demand data. COD removal and ozone consumption data 21 26 iVon-adsorbable COD data for bio-oxidized effluent. . 3O...

Buys, Ronald Earl

2012-06-07T23:59:59.000Z

172

Regional analysis of ground and above-ground climate  

SciTech Connect (OSTI)

The regional suitability of underground construction as a climate control technique is discussed with reference to (1) a bioclimatic analysis of long-term weather data for 29 locations in the United States to determine appropriate above ground climate control techniques, (2) a data base of synthesized ground temperatures for the coterminous United States, and (3) monthly dew point ground temperature comparisons for identifying the relative likelihood of condensation from one region to another. It is concluded that the suitability of earth tempering as a practice and of specific earth-sheltered design stereotypes varies geographically; while the subsurface almost always provides a thermal advantage on its own terms when compared to above ground climatic data, it can, nonetheless, compromise the effectiveness of other, regionally more important climate control techniques. Also contained in the report are reviews of above and below ground climate mapping schemes related to human comfort and architectural design, and detailed description of a theoretical model of ground temperature, heat flow, and heat storage in the ground. Strategies of passive climate control are presented in a discussion of the building bioclimatic analysis procedure which has been applied in a computer analysis of 30 years of weather data for each of 29 locations in the United States.

Not Available

1981-12-01T23:59:59.000Z

173

Colorado Wind Resource at 50 Meters Above Ground Level  

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

Metadata also available as Metadata: IdentificationInformation DataQualityInformation SpatialDataOrganizationInformation SpatialReferenceInformation EntityandAttributeI...

174

Dispersion modeling of ground-level area sources of particulate  

E-Print Network [OSTI]

The use of dispersion modeling by State Air Pollution hics. Regulatory Agencies (SAPRAS) is increasing. Dispersion modeling provides a quick and efficient means of determining the downwind impact of pollutant release from a source. The SAPRAS...

Fritz, Bradley Keith

2012-06-07T23:59:59.000Z

175

Study of the distribution of 226Ra in ground water near the uranium industry of Jharkhand, India  

Science Journals Connector (OSTI)

......levels of 226Ra observed in the ground water. Being a mineralised area, variation...226Ra activity concentration in ground water that is used for drinking purpose...Cretescu I. Characterisation and remediation of soils contaminated with uranium......

R. M. Tripathi; V. N. Jha; S. K. Sahoo; N. K. Sethy; A. K. Shukla; V. D. Puranik; H. S. Kushwaha

2012-01-01T23:59:59.000Z

176

Synthesis of Ozone at Atmospheric Pressure by a Quenched Induction-Coupled Plasma Torch  

SciTech Connect (OSTI)

The technical feasibility of using an induction-coupled plasma (ICP) torch to synthesize ozone at atmospheric pressure is explored. Ozone concentrations up to ~250 ppm were produced using a thermal plasma reactor system based on an ICP torch operating at 2.5 MHz and ~11 kVA with an argon/oxygen mixture as the plasma-forming gas. A gaseous oxygen quench formed ozone by rapid mixing of molecular oxygen with atomic oxygen produced by the torch. The ozone concentration in the reaction chamber was measured by Fourier Transform infrared (FTIR) spectroscopy over a wide range of experimental configurations. The geometry of the quench gas flow, the quench flow velocity, and the quench flow rate played important roles in determining the ozone concentration. The ozone concentration was sensitive to the torch RF power, but was insensitive to the torch gas flow rates. These observations are interpreted within the framework of a simple model of ozone synthesis.

A. Blutke; B.C. Stratton; D.R. Mikkelsen; J. Vavruska; R. Knight

1998-01-01T23:59:59.000Z

177

Ozone-forming potential of a series of oxygenated organic compounds  

SciTech Connect (OSTI)

An incremental reactivity approach has been used to assess the relative ozone-forming potentials of various important oxygenated fuels/fuel additives, i.e., tert-butyl alcohol (TBA), dimethyl ether (DME), diethyl ether (DEE), methyl tert-butyl ether (MTBE), and ethyl tert-butyl ether (ETBE), in a variety of environments. Calculations were performed using a single-cell trajectory model, combined with the Lurmann-Carter-Coyner chemical mechanism, with (NMOC)/(NO{sub x}) ratios ranging from 4 to 20. This work provides the first quantitative assessment of the air quality impact of release of these important oxygenated compounds. ETBE and DEE are the two most reactive compounds on a per carbon equivalent basis, while TBA is the least reactive species. At a (NMOC)/(NO{sub x}) ratio of 8, which is generally typical of polluted urban areas in the United States, TBA, DME, MTBE, and ETBE all have incremental reactivities less than or equal to that of the urban NMHC mix. Thus, use of these additives in fuels may have a beneficial impact on urban ozone levels.

Japar, S.M.; Wallington, T.J.; Rudy, S.J.; Chang, Tai Y. (Ford Motor Company, Dearborn, MI (USA))

1991-03-01T23:59:59.000Z

178

Removal of phenol and chlorophenols from water by new ozone generator  

Science Journals Connector (OSTI)

Presence of phenol in river water occasionally disturbs the production of drinking water. Phenol often originated from coal power plants or pesticides. New ozone generator [Kuraica et al., Vacuum, 73 (2004) 705] was used for removal of phenol and chlorophenols from water. The ozone generator was based on coaxial dielectricbarrier-discharge and operated in the air at an atmospheric pressure. Flowing water was one of dielectric layers. Ozone and ozonized water were generated in the same volume of the discharge. This type of ozone generator has considerable advantages in comparison with the classical ones. In this paper five experiments were described, three with bidistilled water and two with different water samples from river Danube. In all cases, 5L of water containing 6mg/L of corresponding phenol was passed once through the ozonizer. The concentration of dissolved ozone in water was 7–40mg/L. The ozonization lasted 1 h, but the total contact time was up to 94 h. In all cases, before and after the treatment of water with ozone, the concentration of corresponding phenol [Standard Methods for Examination of Water and Wastewater, method 510 B, Chloroform Extraction Method, American Public Health Association, Washington, 1985, p. 558], dissolved and residual ozone [Standard Methods for Examination of Water and Wastewater, Methods 2-41, 2-42 (dissolved ozone) Iodometric Method; method 4-104 (ozone residual) Indigo Colorimetric Method, American Public Health Association, Washington, 1995] were determined by standard methods. In experiments with distilled water most of the phenol was removed during ozonization (89.5%). After 24 and 96 h the percentage of removed phenol increased to 93.3 and 98.9%, respectively. With 4-chlorophenol and 2,4-dichlorophenol, 99.8 and 98.9% of corresponding phenols were removed. In experiments with two different water samples from Danube, the phenol was also mostly removed during ozonization, 76.7 and 80.0%, respectively.

D. Manojlovic; D.R. Ostojic; B.M. Obradovic; M.M. Kuraica; V.D. Krsmanovic; J. Puric

2007-01-01T23:59:59.000Z

179

Learning about ozone depletion Paul J. Crutzen & Michael Oppenheimer  

E-Print Network [OSTI]

Learning about ozone depletion Paul J. Crutzen & Michael Oppenheimer Received: 12 January 2007 Mainz, Germany M. Oppenheimer (*) Department of Geosciences, Princeton University, Princeton, NJ 08544, USA e-mail: omichael@princeton.edu M. Oppenheimer Woodrow Wilson School of Public and International

Oppenheimer, Michael

180

Investigation of the Atmospheric Ozone Impacts of Methyl Iodide  

E-Print Network [OSTI]

J. R. Holmes (1977): “Nitrogen Dioxide Photolysis in the LosO3 Ozone NO Nitric Oxide NO2 Nitrogen Dioxide NO3 NitrateNitrogen Pentoxide HONO Nitrous Acid HNO3 Nitric Acid HNO4 Peroxynitric Acid HO2H Hydrogen Peroxide CO Carbon Monoxide SO2 Sulfur Dioxide

Carter, W P L

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

556 2010 ASHRAE Chemical reactions between ozone and terpenoids can  

E-Print Network [OSTI]

, and air-conditioning (HVAC) system. This investigation models the influence of HVAC systems on SOA influential HVAC parameters are the flow rates through the system,particlefiltrationefficiency,andindoortemperature for the residential and commercial models, as well as ozone removal on used filters for the commercial model

Siegel, Jeffrey

182

International Gathering Plans Ways To Safeguard Atmospheric Ozone  

Science Journals Connector (OSTI)

International Gathering Plans Ways To Safeguard Atmospheric Ozone ... Everyone's for it, as was evidenced in Helsinki recently where senior government officials from more than 80 countries, together with delegates representing many interested groups and organizations, attended a week-long meeting to seek ways of safeguarding it. ...

DERMOT A. O'SULLIVAN

1989-06-26T23:59:59.000Z

183

Ozone Treatments of Fresh Atlantic Cod, Gadus morhua  

E-Print Network [OSTI]

, has made it a useful agent for seawater disin fection (Blogoslawski et aI., 1975; Blogoslawski, 1977 to extend the storage life of many perishable foods by slowing decomposi tion caused by microorganisms. These studies were reviewed by Farquhar and Rice (1982). Storage life extension of fish using ozone was first

184

Massive global ozone loss predicted following regional nuclear conflict  

Science Journals Connector (OSTI)

...The magnitude and duration of the predicted ozone reductions are greater than those calculated in the 1980's for global thermonuclear war scenarios involving yields that exceed the ones we considered by factors of >1000. At the time, global models had...

Michael J. Mills; Owen B. Toon; Richard P. Turco; Douglas E. Kinnison; Rolando R. Garcia

2008-01-01T23:59:59.000Z

185

Calibrating Pesticide Application Ground Equipment  

E-Print Network [OSTI]

This pocket-sized guide gives step-by-step instructions for calibrating ground sprayers. Tables provide instructions, examples and sample formulas for determining speed of application, flow rate and the amount of pesticide to add to the tank....

Shaw, Bryan W.

2000-07-05T23:59:59.000Z

186

Ground Water Management Regulations (Louisiana)  

Broader source: Energy.gov [DOE]

The rules and regulations apply to the management of the state's ground water resources. In addition, the Commissioner of Conservation has recommended that oil and gas operators with an interest...

187

Questa Baseline and Pre-Mining Ground-Water Quality Investigation. 3. Historical Ground-Water  

E-Print Network [OSTI]

............................................................................................................................................................... 9 Mine history and ground-water development ....................................................................................................................................................... 11 Ground-water quality database.......................................................................................................................................................... 29 Compilation of complete database

188

The NO2 Flux Conundrum  

Science Journals Connector (OSTI)

...titled "Ozone: Good up high, bad nearby." T. Brinch's Agrochemical Pages offers a presentation on ozone at ground level...biomass burning in the chapter on changes in the chemical composition of the atmosphere; the chapter on biosphere-atmosphere...

Manuel T. Lerdau; J. William Munger; Daniel J. Jacob

2000-09-29T23:59:59.000Z

189

Quasi-three dimensional ground-water modeling of the hydrologic influence of paleozoic rocks on the ground-water table at Yucca Mountain, Nevada  

E-Print Network [OSTI]

The proposed high-level radioactive waste repository site at Yucca Mountain, Nevada, has created a need to understand the, ground-water system at the site. One of the important hydrologic characteristics is a steep gradient on the ground-water table...

Lee, Si-Yong

2012-06-07T23:59:59.000Z

190

Ozonized water generator based on coaxial dielectric-barrier-discharge in air  

Science Journals Connector (OSTI)

A coaxial dielectric-barrier-discharge (DBD) as an ozonized water reactor system has been developed and described. It operates in the air at an atmospheric pressure. In the reactor one of the dielectric layers is flowing water. Ozone and ozonized water are generated in the same volume of the discharge. The ozone production and its dissolution in the water simultaneously occur leading to increases of the reactor efficiency. Filamentary 50 Hz DBD has been performed using up to 20 kV applied voltage. The obtained ozone concentrations correspond to the values typically suggested for the treatment of potable and wastewater. The efficiency can be further increased by addition of small amount of the oxygen in the DBD device. The periodical time dependence of the dissolved ozone concentration in Danube water is found and discussed.

Milorad M. Kuraica; Bratislav M. Obradovi?; Dragan Manojlovi?; Daliborka R. Ostoji?; Jagoš Puri?

2004-01-01T23:59:59.000Z

191

Impact of HVAC filter on indoor air quality in terms of ozone removal and carbonyls generation  

Science Journals Connector (OSTI)

Abstract This study aims at detecting ozone removal rates and corresponding carbonyls generated by ozone reaction with HVAC filters from various building, i.e., shopping mall, school, and office building. Studies were conducted in a small-scale environmental chamber. By examining dust properties including organic carbon proportion and specific surface area of dusts adsorbed on filters along with ozone removal rates and carbonyls generation rate, the relationship among dust properties, ozone removal rates, and carbonyls generation was identified. The results indicate a well-defined positive correlation between ozone removal efficiency and carbonyls generation on filters, as well as a positive correlation among the mass of organic carbon on filters, ozone removal efficiency and carbonyls generations.

Chi-Chi Lin; Hsuan-Yu Chen

2014-01-01T23:59:59.000Z

192

Catalytic ozonation of azo dye active brilliant red X-3B in water with natural mineral brucite  

Science Journals Connector (OSTI)

Natural mineral brucite was used directly in catalytic ozonation of dye wastewater of active brilliant red X-3B. Compared with single ozonation, degradation of X-3B increased from 47% to 89%, and removal rate of COD increased from 9% to 32.5% in catalytic ozonation for 15 min. The catalytic ozonation of X-3B followed a direct oxidization mechanism by ozone molecule, and this was actually a homogeneous catalysis of OH? due to dissolution of Mg(OH)2 from natural brucite. As a natural mineral catalyst, brucite has supplied an economical and feasible choice for catalytic ozonation of X-3B in industrial wastewater.

Yuming Dong; Kun He; Bo Zhao; Ying Yin; Lin Yin; Aimin Zhang

2007-01-01T23:59:59.000Z

193

Ground Magnetics | Open Energy Information  

Open Energy Info (EERE)

Ground Magnetics Ground Magnetics Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Magnetics Details Activities (15) Areas (12) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Magnetic Techniques Parent Exploration Technique: Magnetic Techniques Information Provided by Technique Lithology: Presence of magnetic minerals such as magnetite. Stratigraphic/Structural: Mapping of basement structures, horst blocks, fault systems, fracture zones, dykes and intrusions. Hydrological: The circulation of hydrothermal fluid may impact the magnetic susceptibility of rocks. Thermal: Rocks lose their magnetic properties at the Curie temperature (580° C for magnetite) [1] and, upon cooling, remagnetize in the present magnetic field orientation. The Curie point depth in the subsurface may be determined in a magnetic survey to provide information about hydrothermal activity in a region.

194

Scale-Up and Demonstration of Fly Ash Ozonation Technology  

SciTech Connect (OSTI)

The disposal of fly ash from the combustion of coal has become increasingly important. When the fly ash does not meet the required specification for the product or market intended, it is necessary to beneficiate it to achieve the desired quality. This project, conducted at PPL's Montour SES, is the first near full-scale ({approx}10 ton/day), demonstration of ash ozonation technology. Bituminous and sub bituminous ashes, including two ash samples that contained activated carbon, were treated during the project. Results from the tests were very promising. The ashes were successfully treated with ozone, yielding concrete-suitable ash quality. Preliminary process cost estimates indicate that capital and operating costs to treat unburned carbon are competitive with other commercial ash beneficiation technologies at a fraction of the cost of lost sales and/or ash disposal costs. This is the final technical report under DOE Cooperative Agreement No.: DE-FC26-03NT41730.

Rui Afonso; R. Hurt; I. Kulaots

2006-03-01T23:59:59.000Z

195

Meeting the New Ozone Standard: Challenges and Opportunities  

Broader source: Energy.gov [DOE]

This presentation by Anna Garcia, executive director of the Ozone Transport Commission, was part of the July 2008 Webcast sponsored by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Weatherization and Intergovernmental Program Clean Energy and Air Quality Integration Initiative that was titled Role of Energy Efficiency and Renewable Energy in Improving Air Quality and Addressing Greenhouse Gas Reduction Goals on High Electric Demand Days.

196

Impact of Wildfires on Ozone Exceptional Events in the Western U.S.  

Science Journals Connector (OSTI)

Impact of Wildfires on Ozone Exceptional Events in the Western U.S. ... ? National Center for Atmospheric Research, Boulder, Colorado 80307, United States ...

Daniel A. Jaffe; Nicole Wigder; Nicole Downey; Gabriele Pfister; Anne Boynard; Stephen B. Reid

2013-08-27T23:59:59.000Z

197

Establishing Policy Relevant Background (PRB) Ozone Concentrations in the United States  

Science Journals Connector (OSTI)

National Oceanic and Atmospheric Administration, Boulder, Colorado ... Processes that contribute to PRB ozone concentrations include photochemistry associated with natural emissions of volatile organic compounds (VOCs), nitrogen oxides (NOx), and carbon monoxide (CO) from sources such as biogenic emissions (not including agricultural activities), wildfires, lightning, the long-range transport of ozone and its precursors from outside of North America, and stratospheric-tropospheric exchange (STE) of ozone. ... Models generally find little ozone production in wildfire plumes for short aging times (days) because NOx emissions are low and conversion to peroxyacetylnitrate (PAN) is rapid. ...

Elena C. McDonald-Buller; David T Allen; Nancy Brown; Daniel J. Jacob; Daniel Jaffe; Charles E. Kolb; Allen S. Lefohn; Samuel Oltmans; David D. Parrish; Greg Yarwood; Lin Zhang

2011-10-10T23:59:59.000Z

198

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

E-Print Network [OSTI]

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

Destaillats, Hugo

2012-01-01T23:59:59.000Z

199

E-Print Network 3.0 - atmospheric ozone increases Sample Search...  

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

Collection: Environmental Sciences and Ecology ; Geosciences 78 Proceedings of Healthy Buildings 2009 Paper 336 Time-Scale Analysis for Reactive Deposition of Ozone via Passive...

200

E-Print Network 3.0 - ameliorate ozone effects Sample Search...  

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

Summary: students confuse the relationship between the ozone hole and the greenhouse effect, thus confusing... , and to suggest more effective teaching methods. 2....

Note: This page contains sample records for the topic "ground level ozone" 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

Quasi-three dimensional ground-water modeling of the hydrologic influence of paleozoic rocks on the ground-water table at Yucca Mountain, Nevada.  

E-Print Network [OSTI]

??The proposed high-level radioactive waste repository site at Yucca Mountain, Nevada, has created a need to understand the, ground-water system at the site. One of… (more)

Lee, Si-Yong

2012-01-01T23:59:59.000Z

202

The effect of ozone on nicotine desorption from model surfaces:evidence for heterogeneous chemistry  

SciTech Connect (OSTI)

Assessment of secondhand tobacco smoke exposure using nicotine as a tracer or biomarker is affected by sorption of the alkaloid to indoor surfaces and by its long-term re-emission into the gas phase. However, surface chemical interactions of nicotine have not been sufficiently characterized. Here, the reaction of ozone with nicotine sorbed to Teflon and cotton surfaces was investigated in an environmental chamber by monitoring nicotine desorption over a week following equilibration in dry or humid air (65-70 % RH). The Teflon and cotton surfaces had N{sub 2}-BET surface areas of 0.19 and 1.17 m{sup 2} g{sup -1}, and water mass uptakes (at 70 % RH) of 0 and 7.1 % respectively. Compared with dry air baseline levels in the absence of O{sub 3}, gas phase nicotine concentrations decrease, by 2 orders of magnitude for Teflon after 50 h at 20-45 ppb O{sub 3}, and by a factor of 10 for cotton after 100 h with 13-15 ppb O{sub 3}. The ratios of pseudo first-order rate constants for surface reaction (r) to long-term desorption (k) were r/k = 3.5 and 2.0 for Teflon and cotton surfaces, respectively. These results show that surface oxidation was competitive with desorption. Hence, oxidative losses could significantly reduce long-term re-emissions of nicotine from indoor surfaces. Formaldehyde, N-methylformamide, nicotinaldehyde and cotinine were identified as oxidation products, indicating that the pyrrolidinic N was the site of electrophilic attack by O{sub 3}. The presence of water vapor had no effect on the nicotine-O{sub 3} reaction on Teflon surfaces. By contrast, nicotine desorption from cotton in humid air was unaffected by the presence of ozone. These observations are consistent with complete inhibition of ozone-nicotine surface reactions in an aqueous surface film present in cotton but not in Teflon surfaces.

Destaillats, Hugo; Singer, Brett C.; Lee, Sharon K.; Gundel, LaraA.

2005-05-01T23:59:59.000Z

203

Broadband Ground-Plane Cloak  

Science Journals Connector (OSTI)

...automated design process. The ground-plane...Maxwell's equations implies that...number of simulations of the metamaterial...cloak-design process and makes...Jacobian matrix {lambda...Jacobian matrix). In our...retrieval process, modified...numerical simulation. A regression...a single Matlab program...Adobe Acrobat PDF format...

R. Liu; C. Ji; J. J. Mock; J. Y. Chin; T. J. Cui; D. R. Smith

2009-01-16T23:59:59.000Z

204

Cooking with Ground Pork (Spanish)  

E-Print Network [OSTI]

? 10 minutos, o hasta que las tiras de tortilla est?n suaves. S?rvalo caliente. Adaptado de Commodity Fact Sheet for USDA Household Programs: Frozen Ground Pork (folleto de informaci?n sobre productos preparado para los Programas del Hogar del...

Anding, Jenna

2008-12-09T23:59:59.000Z

205

Evaluating the Vertical Distribution of Ozone and Its Relationship to Pollution Events in Air Quality Models Using Satellite Data  

Science Journals Connector (OSTI)

Most regional scale models that are used for air quality forecasts and ozone source attribution do not adequately capture the distribution of ozone in the mid- and upper troposphere, but it is unclear how this...

Jessica L. Neu; Gregory Osterman…

2014-01-01T23:59:59.000Z

206

This Week In Petroleum Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

performance but also has environmental impacts because gasoline evaporating from fuel tanks contributes to ground-level ozone formation, also known as smog. Reid Vapor Pressure...

207

Modeling Environmental Justice: A Normative Conception for Healthier Communities  

E-Print Network [OSTI]

oecaerth/environmentaljustice. ———. "Ground-Level Ozone."www.epa.gov/oecaerth/environmentaljustice. Italics are theW. Lyman. "Racializing Environmental Justice." University of

Gendreau, Megan Smith

2011-01-01T23:59:59.000Z

208

Alternative Fuels Data Center  

Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

Low Emission (VALE) Program The goal of the VALE Program is to reduce ground level emissions at commercial service airports located in designated ozone and carbon monoxide...

209

A Comparative Study of Ozone and Ultraviolet Light/Hydrogen Peroxide for Decolorizing Textile Dyeing Waste Water  

E-Print Network [OSTI]

generates free radicals and oxygen as shown below. (2) Figure 2 Laboratory ozone contactor OJ + HOO. ---> HO. + 2 O 2 Color Measurements (3) A Bausch and Lomb color spectrophotometer was used in conjunction with The hydroxyl radicals react with dyes... constants depend on the conditions of the experiment. Conditions affecting rate of color removal with ozone include input rate for ozone, mass transfer efficiency of ozone in the contactor, and concentration of dye. 168 ESL-IE-94-04-39 Proceedings from...

Namboodri, C. G.; Perkins, W. S.; Walsh, W. K.

210

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

211

Ground Magnetics (Nannini, 1986) | Open Energy Information  

Open Energy Info (EERE)

Ground Magnetics (Nannini, 1986) Ground Magnetics (Nannini, 1986) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics (Nannini, 1986) Exploration Activity Details Location Unspecified Exploration Technique Ground Magnetics Activity Date Usefulness not indicated DOE-funding Unknown Notes Detection and quantitative assessment of such intrusive events can be facilitated by magnetic surveys (ground or aerial magnetic field measurements). These surveys are based on the magnetic susceptibility contrast between magmatic rocks at depth and the sedimentary formations above. References Raffaello Nannini (1986) Some Aspects Of Exploration In Non-Volcanic Areas Retrieved from "http://en.openei.org/w/index.php?title=Ground_Magnetics_(Nannini,_1986)&oldid=388291

212

Surface ozone background in the United States: Canadian and Mexican pollution influences  

E-Print Network [OSTI]

of anthropogenic emissions from Canada, Mexico, and outside North America on daily maximum 8-hour average ozone Surface ozone Air quality standard Chemical transport model Global model a b s t r a c t We use a global chemical transport model (GEOS-Chem) with 1 Ã? 1 horizontal resolution to quantify the effects

Park, Rokjin

213

Atmospheric Environment 33 (1999) 1821--1845 The relation between ozone, NO  

E-Print Network [OSTI]

, ozone production efficiency, and removal rates of chemically active species. Use of these methods) chemical regimes. These regimes are associated with the chemistry of odd hydrogen radicals and appear production 1. Introduction The relation between ozone and its two main precur- sors, NO V ("NO

Sillman, Sanford

214

A Laboratory Method For Measuring The Ozone Emission From In-duct Air Cleaners.  

E-Print Network [OSTI]

: Emission rate, HVAC air cleaners, electrostatic precipitators, coronas, standard test method 1 Introduction and to ozone byproducts. Currently there are standards and regulations that limit ozone emissions from portable cleaners (i.e., Viner et al., 1992), are generally exempt from standards and regulations because

Siegel, Jeffrey

215

Can ozone depletion and global warming interact to produce rapid climate change?  

E-Print Network [OSTI]

Can ozone depletion and global warming interact to produce rapid climate change? Dennis L. Hartmann of Climate Change (IPCC) assess- ment of the status of global warming, which reported that winter stratospheric ozone depletion and greenhouse warming are possible. These interactions may be responsible

Limpasuvan, Varavut

216

Stratospheric ozone depletion: a key driver of recent precipitation trends in South Eastern South America  

E-Print Network [OSTI]

. In this paper we focus on South Eastern South America (SESA), a region that has exhibited one of the largest South America 1 Introduction The depletion of ozone in the polar Antarctic strato- sphere (i.e. `theStratospheric ozone depletion: a key driver of recent precipitation trends in South Eastern South

217

Experimental study of reactions between ozone and building products M. Nicolas, O. Ramalho, F. Maupetit*  

E-Print Network [OSTI]

ozone and building products and document their potential impact on indoor air quality. PreliminaryExperimental study of reactions between ozone and building products M. Nicolas, O. Ramalho, F experiments were conducted on four building products: two carpets, a gypsum board and a pine wood board

Paris-Sud XI, Université de

218

Validation of Ozone Monitoring Instrument nitrogen dioxide columns E. A. Celarier,1  

E-Print Network [OSTI]

Validation of Ozone Monitoring Instrument nitrogen dioxide columns E. A. Celarier,1 E. J. Brinksma the standard nitrogen dioxide (NO2) data product (Version 1.0.), which is based on measurements made), Validation of Ozone Monitoring Instrument nitrogen dioxide columns, J. Geophys. Res., 113, D15S15, doi:10

219

Satellite observations of ozone and nitrogen dioxide: from retrievals to emission estimates  

E-Print Network [OSTI]

Summary Satellite observations of ozone and nitrogen dioxide: from retrievals to emission estimates be inferred for important trace gases such as ozone (O3) and nitrogen dioxide (NO2). Chemical transport models.11 to 3.79. Total nitrogen dioxide columns can be retrieved from space in the 405­465 nm window

Haak, Hein

220

Isolation and characterization of five ozone-inductible cDNA clones from Atriplax canescens (saltbush)  

E-Print Network [OSTI]

and water deficit were examined, and those cDNAs were sequenced. Clone 012-1, hybridized with three RNA species, is initially induced in response to both ozone and water deficit stress, but is repressed to prolonged ozone and sulfur dioxide exposure. Clone...

No, Eun-Gyu

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Measurements of springtime Antarctic ozone depletion and development of a balloon borne ultraviolet photometer  

SciTech Connect (OSTI)

The research described herein consists of two parts. The first part is a description of the design of a balloon borne ultraviolet photometer to measure ozone and the results of a flight using this instrument. The second part describes modifications made on the standard commercially available electrochemical ozonesonde and the results of some experiments performed both in the laboratory and during stratospheric balloon flights. Using this modified ECC system, 33 successful balloon flights were made at McMurdo Station, Antarctica during the austral spring of 1986 to study the temporal and vertical development of the so-called Antarctic Ozone Hole. Photometric measurements of ozone in the atmosphere can be accomplished by exploiting 253.65 nanometer absorption feature of ozone. Using a single light source and beam splitting optics, matched optical paths can be generated through two absorption cells. The ozonesonde data gave a very clear picture of the development of the Ozone Hole. The results can be summarized as follows: (1) Depletion occurs between about 12 and 20 km. (2) The most efficient region of ozone depletion decreases in altitude with time. Height profiles show subregions where ozone removal is highly efficient. (3) At 18 km, the ozone mixing ratio decays with a half-life of 25 days.

Harder, J.W.

1987-01-01T23:59:59.000Z

222

The Role of Material Porosity on Ozone Uptake for Metakaolin-Concrete Surfaces  

E-Print Network [OSTI]

to a diminished environmental impact, clay may cause increased removal of ozone, an important indoor pollutant velocity, Heterogeneous Chemistry, Construction Materials 1 Introduction Metakaolin-cement systems hold ozone uptake. Cement is an essential component in the building industry used in formulating concrete

Siegel, Jeffrey

223

Effects of Sodium Chloride Particles, Ozone, UV, and Relative Humidity on Atmospheric Corrosion of Silver  

E-Print Network [OSTI]

Effects of Sodium Chloride Particles, Ozone, UV, and Relative Humidity on Atmospheric Corrosion The corrosion of Ag contaminated with NaCl particles in gaseous environments containing humidity and ozone analyzed using a coulometric reduction technique. The atmospheric corrosion of Ag was greatly accelerated

224

Tropospheric ozone climatology over Irene, South Africa, from 1990 to 1994 and 1998 to 2002  

E-Print Network [OSTI]

Tropospheric ozone climatology over Irene, South Africa, from 1990 to 1994 and 1998 to 2002 R. D in South Africa are reported for the period 1990 to 1994 and a more recent period, 1998 to 2002, when), Tropospheric ozone climatology over Irene, South Africa, from 1990 to 1994 and 1998 to 2002, J. Geophys. Res

Thompson, Anne

225

Ensemble-based air quality forecasts: A multimodel approach applied to ozone  

E-Print Network [OSTI]

Ensemble-based air quality forecasts: A multimodel approach applied to ozone Vivien Mallet1., and B. Sportisse (2006), Ensemble-based air quality forecasts: A multimodel approach applied to ozone, J, the uncertainty in chem- istry transport models is a major limitation of air quality forecasting. The source

Boyer, Edmond

226

Formation of Ozone and Growth of Aerosols in Young Smoke Plumes from Biomass Burning  

E-Print Network [OSTI]

Physics and Chemistry Abstract The combustion of biomass is a major source of atmospheric trace gasesFormation of Ozone and Growth of Aerosols in Young Smoke Plumes from Biomass Burning by Matthew and Planetary Sciences #12;Formation of Ozone and Growth of Aerosols in Young Smoke Plumes from Biomass Burning

227

Air Pollution Physics and Chemistry EAS 6790 Home Work Assignment Ozone Chemistry 2  

E-Print Network [OSTI]

1 Air Pollution Physics and Chemistry EAS 6790 Fall 2010 Home Work Assignment Ozone Chemistry 2 and Chemistry EAS 6790 Fall 2006 Home Work Assignment No. 4, Ozone Chemistry Problems 11.8 and 11.9 (sub-part 1 and 2 only). Daniel Jacob, Atmospheric Chemistry #12;2 Problem 2: 2 2. Consider an air parcel ventilated

Weber, Rodney

228

Transatlantic transport of pollution and its effects on surface ozone in Europe and North America  

E-Print Network [OSTI]

Transatlantic transport of pollution and its effects on surface ozone in Europe and North America; published 3 July 2002. [1] We examine the transatlantic transport of anthropogenic ozone and its impact Head (Ireland) and Sable Island (Canada) are used to evaluate transatlantic transport in the model

Palmer, Paul

229

Atmospheric Environment 39 (2005) 13731382 A hierarchical Bayesian model to estimate and forecast ozone  

E-Print Network [OSTI]

reserved. Keywords: Statistical model; Space­time models; Air pollution; Ozone; Meteorology 1. Introduction describing the spatial­temporal behavior of ambient air pollutants such as ozone (O3) and particulate matter. Statistical space­time models are useful for illuminating relationships between different air pollutants

Irwin, Mark E.

230

Passive Ozone Control Through Use of Reactive Indoor Wall and Ceiling Materials  

E-Print Network [OSTI]

Passive Ozone Control Through Use of Reactive Indoor Wall and Ceiling Materials Paper # 715 Donna A and unpainted drywall as passive ozone control surfaces in a room-sized laboratory chamber. Mean deposition-50%, resulted in increased reactivity for activated carbon. In our model for a typical house, about 35

Siegel, Jeffrey

231

A comparison of biologically active filters for the removal of ozone by-products, turbidity, and particles  

SciTech Connect (OSTI)

Biofiltration tests were performed at the Metropolitan Water District of Southern California`s 5.5-mgd (21,000 m{sup 3}d) demonstration plant using two 400 ft{sup 2} (37 m{sup 2}) anthracite/sand filters and a 6 ft{sup 2} (0.56 m{sup 2}) granular activated carbon (GAC)/sand filter operated in parallel. The empty-bed contact time (EBCT) within the GAC and anthracite ranged from 2.1-3.1 min. The filters were evaluated based on (1) conventional filtration performance (turbidity, particle removal, and headloss); (2) removal of biodegradable ozone by-products (assimilable organic carbon [AOC], aldehydes, and aldoketoacids) after startup; (3) removal of biodegradable ozone by-products at steady state; and (4) resistance to short-term process upsets such as intermittent chlorination or filter out-of-service time. Approximately 80 percent formaldehyde removal was achieved by the anthracite/sand filter operated at a 2.1-min EBCT (6 gpm/ft{sup 2} [15 m/h]) within 8 days of ozone operation. The GAC/sand filter operated at the same rate achieved 80 percent removal within 1 day, possibly as an additive effect of adsorption and biological removal. In-depth aldehyde monitoring at four depths (0.5-min EBCT intervals) provided additional insight into the removal kinetics. During periods of warmer water temperature, from 20 to 48 percent of the AOC was removed in the flocculation/sedimentation basins by 40-75 percent. This percentage removal typically resulted in AOC concentrations within 40 {mu}g C/L of the raw, unozonated water levels.

Coffey, B.M.; Krasner, S.W.; Sclimenti, M.J.; Hacker, P.A.; Gramith, J.T. [Metropolitan Water District of Southern California, La Verne, CA (United States)

1996-11-01T23:59:59.000Z

232

Tropospheric and Lower Stratospheric Ozone Profiles From AERI-X Emission Spectra  

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

Tropospheric and Lower Stratospheric Ozone Profiles Tropospheric and Lower Stratospheric Ozone Profiles From AERI-X Emission Spectra P. F. Fogal and F. J. Murcray Department of Physics and Astronomy University of Denver Denver, Colorado Introduction The University of Denver Atmospheric Emission Radiometric Interferometer-Extended (AERI-X) has been in regular operation at the Southern Great Plains (SGP) Atmospheric Radiation Measurements (ARM) Program site, conditions permitting, since the mid-1990s. We present here the analysis of several spectra from May 10, 1999, and demonstrate the ability to retrieve the tropospheric ozone profile at the ARM site. While the presence of ozone in the stratosphere is of vital importance for several reasons, in the troposphere, ozone is a pollutant and a powerful oxidizer. For these reasons, it is

233

Comparative evaluation of effects of ozonated and chlorinated thermal discharges on estuarine and freshwater organisms  

SciTech Connect (OSTI)

As a part of a program at PSE and G designed to examine the feasibility of ozonation as an alternative to chlorination for control of biofouling in once-through cooling systems, the biological effects of ozonated and chlorinated thermal discharges were evaluated with estuarine and freshwater organisms. Mortality at salinities between 0.5 to 2.5 ppt with mummichog and white perch indicated greater toxicity for chlorine while the alewife, spottail shiner, rainbow trout and white perch in freshwater were more sensitive to ozone. Behavioral and physograhic results were consistent with those observed in toxicity studies. Initial cough response and avoidance concentrations of mummicog and white perch in estuarine waters were lower when exposed to chlorine than to ozone. In freshwater, blueback herring, alewife, rainbow trout, spottail shiner, banded killifish, and white perch avoided lower concentrations of ozone than chlorine.

Guerra, C.R.; Sugam, R.; Meldrim, J.W.; Holmstrom, E.R.; Balog, G.E.

1980-08-01T23:59:59.000Z

234

Worldwide Occurrences of Arsenic in Ground Water  

Science Journals Connector (OSTI)

...decision-making process of water managers, remediation specialists, and...The geologic and ground-water conditions that promote...water managers, remediation specialists, and...The geologic and ground-water conditions that promote...

D. Kirk Nordstrom

2002-06-21T23:59:59.000Z

235

Montana Ground Water Assessment Act (Montana)  

Broader source: Energy.gov [DOE]

This statute establishes a program to systematically assess and monitor the state's ground water and to disseminate the information to interested persons in order to improve the quality of ground...

236

Warm or Steaming Ground | Open Energy Information  

Open Energy Info (EERE)

Warm or Steaming Ground Warm or Steaming Ground Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Warm or Steaming Ground Dictionary.png Warm or Steaming Ground: An area where geothermal heat is conducted to the earth's surface, warming the ground and sometimes causing steam to form when water is present. Other definitions:Wikipedia Reegle Modern Geothermal Features Typical list of modern geothermal features Hot Springs Fumaroles Warm or Steaming Ground Mudpots, Mud Pools, or Mud Volcanoes Geysers Blind Geothermal System Steam rising from the ground at Eldvorp, a 10 km row of craters, in Southwestern Iceland. http://www.visiticeland.com/SearchResults/Attraction/eldvorp Warm or steaming ground is often an indicator of a geothermal system beneath the surface. In some cases a geothermal system may not show any

237

GEOFIZIKA VOL. 30 2013 Original scientific paper  

E-Print Network [OSTI]

, in final form 11 March 2013 ground-level ozone (O3) has been a serious air pollution problem for several. SAMADIANFARD ET AL.: COMPARATIVE ANALYSIS OF OzONE LEVEL PREDICTION ... by air pollution. As one of major among pollutants because it is not emitted directly into the air. This is the main reason why ozone

Fernandez, Thomas

238

Ground Source Heat Pump Demonstration Projects  

Broader source: Energy.gov [DOE]

Below are the project presentations and respective peer review results for Ground Source Heat Pump Demonstration Projects.

239

Ground Source Heat Pump Subprogram Overview  

Broader source: Energy.gov [DOE]

This overview of GTP's Ground Source Heat Pump subprogram was given at GTP's Program Peer Review on May 18, 2010.

240

North Village Ground Source Heat Pumps  

Broader source: Energy.gov [DOE]

Overview: Installation of Ground Source Heat Pumps. Replacement of Aging Heat Pumps. Alignment with Furmans Sustainability Goals.

Note: This page contains sample records for the topic "ground level ozone" 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

Steering control of an autonomous ground vehicle with application to the DARPA Urban Challenge  

E-Print Network [OSTI]

Fundamental to the design of an Ackerman steered autonomous ground vehicle is the development of a low-level controller that effectively performs trajectory or path tracking. Though ample literature is available on various ...

Campbell, Stefan F. (Stefan Forrest)

2007-01-01T23:59:59.000Z

242

Quantification of Ozone Levels in Indoor Environments Generated by Ionization and Ozonolysis Air Purifiers  

E-Print Network [OSTI]

of California, Irvine, CA ABSTRACT Indoor air purifiers are advertised as safe household prod- ucts for health. This is a serious concern, because O3 is a criteria air pollutant reg- ulated by health-related federal and state of growing air pollution problems in urban areas, indoor air purification has gained widespread popularity

Nizkorodov, Sergey

243

Stability of ice-sheet grounding lines  

Science Journals Connector (OSTI)

...81 73 Stability of ice-sheet grounding lines Richard F. Katz 1 * M. Grae Worster 2...ice sheets are sensitive to grounding-line position and variation, characteristics...models. We present a theory for grounding-line dynamics in three spatial dimensions and...

2010-01-01T23:59:59.000Z

244

INFLUENCE OF ELEVATED OZONE AND CARBON DIOXIDE ON INSECT DENSITIES.  

SciTech Connect (OSTI)

The combustion of fossil fuels is profoundly altering the chemical composition of the atmosphere. Beginning with the Industrial Revolution, the concentration of carbon dioxide in the atmosphere has increased from approximately 280 to 370 {micro}l l{sup -1} in 2004, and it is expected to exceed 550 {micro}l l{sup -1} by 2050. Tropospheric ozone has risen even more rapidly than CO{sub 2} and average summer concentrations in the Northern Hemisphere are expected to continue to increase by 0.5-2.5% per year over the next 30 years. Although elevated CO{sub 2} stimulates photosynthesis and productivity of terrestrial ecosystems, ozone (O{sub 3}) is deleterious. In addition to directly affecting the physiology and productivity of crops, increased concentrations of tropospheric CO{sub 2} and O{sub 3} are predicted to lower the nutritional quality of leaves, which has the potential to increase herbivory as insects eat more to meet their nutritional demands. We tested the hypothesis that changes in tropospheric chemistry affect the relationship between plants and insect herbivores by changing leaf quality. The susceptibility to herbivory of soybean grown in elevated CO{sub 2} or O{sub 3} was examined using free air gas concentration enrichment (SoyFACE). FACE technology has the advantage that plants are cultivated under realistic field conditions with no unwanted alteration of microclimate or artificial constraints on the insect community.

DELUCIA, E.; DERMODY, O.; O'NEILL, B.; ALDEA, M.; HAMILTON, J.; ZANGERL, A.; ROGER, A.; BERENBAUM, M.

2005-01-05T23:59:59.000Z

245

Atlas SCT/Pixel Grounding and Shielding ATLAS SCT/Pixel Grounding and Shielding Note  

E-Print Network [OSTI]

Atlas SCT/Pixel Grounding and Shielding 1 ATLAS SCT/Pixel Grounding and Shielding Note November 22 mostly connects existing mechanical electrical conductive #12; Atlas SCT/Pixel Grounding and Shielding 2 that equivalent. The barrel outer heat shield (150 aluminum) main element shield. #12; Atlas SCT/Pixel Grounding

California at Santa Cruz, University of

246

Evaluating ozone dose for AOC removal in two-step GAC filters  

Science Journals Connector (OSTI)

Upgrading an existing post-ozonation plant with two-step granular activated carbon (GAC) filtration for assimilable organic carbon (AOC) removal was studied. The effects of ozone dose on AOC formation and its removal in the subsequent two-step GAC filtration was studied using chemically pretreated 2 to 14° C humic lake water. Two parallel pilot-plant trains with different ozone doses (0 to 1.2 mgO3/mgTOC) and a shortterm ozonation study were performed. The optimum ozone dose for maximum AOC formation was 0.4–0.5 mgO3/mgTOC. The AOC-P17 of ozonated water was three-fold higher and AOC-NOX over ten-fold higher than in non-ozonated water, while the following biofiltration (first step) removed 51 % and 72 % of AOC-P17 and AOC-NOX, respectively. The adsorber (second step) contributed to less than 10% of the overall AOC reduction. It appeared that biofiltration is a feasible method in upgrading water treatment plants for AOC removal even when treating cold humic waters, while the subsequent adsorber seems to have less significance for AOC removal.

R. Vahala; T. Ala-Peijari; J. Rintala; R. Laukkanen

1998-01-01T23:59:59.000Z

247

Effect of ozonation on fungal resistance of bamboo and oak flooring materials  

Science Journals Connector (OSTI)

Abstract Lignocellulosic materials are gaining increased interest as renewable sources of building materials. However, chemical and microbiological degradation can occur when lignocellulosic materials are exposed to environmental stressors such as ozone and elevated humidity. In this study, the effects of ozone treatment and solvent extraction on fungal growth rates of bamboo and oak flooring materials were investigated. One set of samples was extracted with a mixture of cyclohexane and ethanol solvents for 72 h to remove extractable compounds. Another set of materials was exposed continuously to ozone (2000 ?L m?3 or 2000 ppbv) for one to five weeks. Solvent-extracted and ozone-treated samples were incubated in closed chambers at 85% or 55% RH and 30 °C. Incubated samples were removed at regular time intervals for fungal growth evaluation. Ozone treatment caused chemical changes in bamboo and oak, which appeared to reduce bamboo's resistance to fungal attack. Longer ozone exposure led to higher susceptibility to fungal growth. Untreated and ozone-treated oak showed no evidence of fungal growth, suggesting that this material may contain fungi-inhibitory compounds that are not removed by these treatments. Also, a delay in fungal growth on cyclohexane/ethanol-extracted bamboo was observed, probably due to the extraction process removing substances that enhanced fungal growth.

Chi Hoang; Tinh Nguyen; Deborah Stanley; Andrew Persily; Richard L. Corsi

2014-01-01T23:59:59.000Z

248

Surface modification of nitrogen-doped carbon nanotubes by ozone via atomic layer deposition  

SciTech Connect (OSTI)

The use of ozone as an oxidizing agent for atomic layer deposition (ALD) processes is rapidly growing due to its strong oxidizing capabilities. However, the effect of ozone on nanostructured substrates such as nitrogen-doped multiwalled carbon nanotubes (NCNTs) and pristine multiwalled carbon nanotubes (PCNTs) are not very well understood and may provide an avenue toward functionalizing the carbon nanotube surface prior to deposition. The effects of ALD ozone treatment on NCNTs and PCNTs using 10?wt. % ozone at temperatures of 150, 250, and 300?°C are studied. The effect of ozone pulse time and ALD cycle number on NCNTs and PCNTs was also investigated. Morphological changes to the substrate were observed by scanning electron microscopy and high resolution transmission electron microscopy. Brunauer-Emmett-Teller measurements were also conducted to determine surface area, pore size, and pore size distribution following ozone treatment. The graphitic nature of both NCNTs and PCNTs was determined using Raman analysis while x-ray photoelectron spectroscopy (XPS) was employed to probe the chemical nature of NCNTs. It was found that O{sub 3} attack occurs preferentially to the outermost geometric surface of NCNTs. Our research also revealed that the deleterious effects of ozone are found only on NCNTs while little or no damage occurs on PCNTs. Furthermore, XPS analysis indicated that ALD ozone treatment on NCNTs, at elevated temperatures, results in loss of nitrogen content. Our studies demonstrate that ALD ozone treatment is an effective avenue toward creating low nitrogen content, defect rich substrates for use in electrochemical applications and ALD of various metal/metal oxides.

Lushington, Andrew; Liu, Jian; Tang, Yongji; Li, Ruying; Sun, Xueliang, E-mail: xsun@eng.uwo.ca [Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario N6A 5B9 (Canada)

2014-01-15T23:59:59.000Z

249

Effect of ozone and granular activated coal (GAC) on the bioactivity of drinking water  

SciTech Connect (OSTI)

In this research, the appearance of easily biodegradable organic material in ozonation and granular activated coal (GAC) filtration was studied. The amount of bioactivity was measured by conventional AOC analyses used in two different modes and also using quite a new growth potential (GP) method. GAC filtration without ozone doubled the amount of AOC of the chemically treated surface water, whereas by ozonation with GAC filtration it was possible to halve the amount of the AOC. The measurement of GP was noticeably simpler than measuring AOC, but for wider use more parallel studies are needed for the comparability of the results of the analysis.

Sallanko, J.; Iivari, P.; Heiska, E. [University of Oulu, Oulu (Finland). Water Resources and Environmental Engineering Laboratory

2009-07-01T23:59:59.000Z

250

OZONE TREATMENT OF SOLUBLE ORGANICS IN PRODUCED WATER (FEAC307)  

SciTech Connect (OSTI)

Oil production is shifting from ''shallow'' wells (0-650 ft water depth) to off-shore, deep-water operations (>2,600 ft.). Production from these operations is now approaching 20%. By 2007, it is projected that as much as 70% of the U.S. oil production will be from deep-water operations. The crude oil from these deep wells is more polar, thus increasing the amount of dissolved hydrocarbons in the produced water. Early data from Gulf of Mexico (GOM) wells indicate that the problem with soluble organics will increase significantly as deep-water production increases. Existing physical/chemical treatment technologies used to remove dispersed oil from produced water will not remove dissolved organics. GOM operations are rapidly moving toward design of high-capacity platforms that will require compact, low-cost, efficient treatment processes to comply with current and future water quality regulations. This project is an extension of previous research to improve the applicability of ozonation and will help address the petroleum industry-wide problem of treating water containing soluble organics. The goal of this project is to maximize oxidation of water-soluble organics during a single-pass operation. The project investigates: (1) oxidant production by electrochemical and sonochemical methods, (2) increasing the mass transfer rate in the reactor by forming microbubbles during ozone injection into the produced water, and (3) using ultraviolet irradiation to enhance the reaction if needed. Industrial collaborators include Chevron, Shell, Phillips, BP Amoco, Statoil, and Marathon Oil through a joint project with the Petroleum Environmental Research Forum (PERF). The research and demonstration program consists of three phases: (1) Laboratory testing in batch reactors to compare effectiveness of organics destruction using corona discharge ozone generation methods with hydrogen peroxide generated sonochemically and to evaluate the enhancement of destruction by UV light and micro-bubble spraying. (2) Continuous-flow studies to determine the efficacy of various contactors, the dependency of organics destruction on process variables, and scale-up issues. (3) Field testing of a prototype system in close collaboration with an industrial partner to generate performance data suitable for scale-up and economic evaluation.

Klasson, KT

2001-03-20T23:59:59.000Z

251

Influence of Long-Period Variations of Total Ozone Content on Climate  

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

Influence of Long-Period Variations of Total Ozone Content on Climate Influence of Long-Period Variations of Total Ozone Content on Climate Change in Twentieth Century Zuev, V Institute of Atmospheric Optics Zueva, N. Institute of Atmospheric Optics Bondarenko, S Institute of Atmospheric Optics Category: Atmospheric State and Surface It is shown that during long-term total ozone decrease everywhere at middle and high latitudes there takes place the destruction of balance in global carbon cycle first of all due to reduction of photosynthetical СО2 sink in consequence of UV-B radiation stress of vegetable biota. As a result, СО2 concentrations in the atmosphere considerably increase, enhancing the "greenhouse effect." Based on reconstruction of behavior of stratospheric ozone between 1600 and 2000 from dendrochronologic data, it is shown that

252

Climatology and Trends in the Forcing of the Stratospheric Ozone Transport  

E-Print Network [OSTI]

A thorough analysis of the ozone transport was carried out using the Transformed-Mean Eulerian (TEM) tracer transport equation and the European Centre for Medium-Range Weather Forecasts (ECMWF) Re- Analysis (ERA-40). In ...

Monier, Erwan

253

The impact of traffic emissions on atmospheric ozone and OH: results from QUANTIFY  

E-Print Network [OSTI]

on the boundary layer. The effect of ship emissions does notfor road. Globally the effect of ship emissions on ozone insouthern hemisphere the effect of ship emissions is among

2009-01-01T23:59:59.000Z

254

Ultraviolet-ozone-treated PEDOT:PSS as anode buffer layer for organic solar cells  

Science Journals Connector (OSTI)

Ultraviolet-ozone-treated poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS)was used as the anode buffer layer in copper phthalocyanine (CuPc)/fullerene-based solar cells. The power conversion e...

Zisheng Su; Lidan Wang; Yantao Li; Haifeng Zhao; Bei Chu…

2012-08-01T23:59:59.000Z

255

Reductions in ozone concentrations due to controls on variability in industrial flare emissions in Houston, Texas  

E-Print Network [OSTI]

High concentrations of ozone in the Houston/Galveston area are associated with industrial plumes of highly reactive hydrocarbons, mixed with NOx. The emissions leading to these plumes can have significant temporal variability, ...

Nam, Junsang

2007-01-01T23:59:59.000Z

256

An Approach to the Detection of Long-Term Trends in Upper Stratospheric Ozone from Space  

Science Journals Connector (OSTI)

A central problem in the detection of long-term trends in upper stratospheric ozone from orbiting remote sensors involves the separation of instrument drifts from true geophysical changes. Periodic flights of a Solar Backscatter Ultraviolet ...

John E. Frederick; Xufeng Niu; Ernest Hilsenrath

1990-10-01T23:59:59.000Z

257

Ozonation of Mutagenic and Carcinogenic Polyaromatic Amines and Polyaromatic Hydrocarbons in Water  

Science Journals Connector (OSTI)

...Laboratory, Department of Microbiology, University of Notre Dame...Present address: Department of Microbiology, Harvard School of Public...titration method of Saltzman and Gilbert (25). The effective ozone...Saitzman, B. E., and Gilbert, N. lodometric microdetermination...

Gary R. Burleson; Michael J. Caulfield; and Morris Pollard

1979-06-01T23:59:59.000Z

258

Evaluation of a novel ozone generation technique for disinfection of poultry hatchers and processed broiler carcasses  

E-Print Network [OSTI]

When comparing electrochemically generated ozone(03)(2.94.2 wt % inside the (hatcher) and formaldehyde (16 n-A formalin + 7.5 g potassium pertnanganate) for disinfection of Salmonella enteiltidis (SE) contaminated agar plates and typical hatchery...

Ramirez, Gerardo Arturo

1994-01-01T23:59:59.000Z

259

Verification of the WRF model during a high ozone event over Houston, TX  

E-Print Network [OSTI]

High ozone values were observed in Houston, TX during August 25 - September 1, 2000. A comparison of WRF data with observations and MM5 data was conducted to determine the WRF model's performance in simulating the meteorological conditions...

Ames, Douglas Seeley

2012-06-07T23:59:59.000Z

260

Evidence for Deformed Ground States in Light Kr Isotopes  

Science Journals Connector (OSTI)

The levels in Kr74,76 were studied with in-beam ?-spectroscopy techniques and the ?+ decay of Rb76. The energies of the 21+ states in Kr74,76 deviate from smooth behavior compared with the higher spin levels. The yrast cascade B(E2)'s are highly collective. The Kr74,76 ground states have unusually large deformation. The origin of this deformation and of shape coexistence in this region is described in terms of the protons driving the deformation.

R. B. Piercey; J. H. Hamilton; R. Soundranayagam; A. V. Ramayya; C. F. Maguire; X. -J. Sun; Z. Z. Zhao; R. L. Robinson; H. J. Kim; S. Frauendorf; J. Döring; L. Funke; G. Winter; J. Roth; L. Cleemann; J. Eberth; W. Neumann; J. C. Wells; J. Lin; A. C. Rester; H. K. Carter

1981-11-23T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Collection of liquid from below-ground location  

DOE Patents [OSTI]

A method of retrieving liquid from a below-ground collection area by permitting gravity flow of the liquid from the collection area to a first closed container; monitoring the level of the liquid in the closed container; and after the liquid reaches a given level in the first closed container, transferring the liquid to a second closed container disposed at a location above the first closed container, via a conduit, by introducing into the first closed container a gas which is substantially chemically inert with respect to the liquid, the gas being at a pressure sufficient to propel the liquid from the first closed container to the second closed container.

Phillips, Steven J. (Kennewick, WA); Alexander, Robert G. (Kennewick, WA)

1995-01-01T23:59:59.000Z

262

Utilization of oilseed proteins in ground beef formulations  

E-Print Network [OSTI]

additives from ten sources were combined with ground beef at two levels and the resulting 20 formulations along with a control formulation were evaluated. The vegetable additives were incorporated at 20 and 30X levels (in the rehydrated form... of the 10 vegetable protein additives was analyzed to determine bulk denisty, initial protein content, water-soluble protein content and the pH value of a water-ertract. The results of the present study indicate that the use of specific vegetable protein...

Marshall, William Houston

2012-06-07T23:59:59.000Z

263

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques (Redirected from Ground Electromagnetic Methods) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature

264

Earth resistivity measurement near substation ground grids  

SciTech Connect (OSTI)

Proper substation grounding grid design requires good, accurate soil resistivity measurements. This data is essential to model the substation ground grid to design a safe ground grid with a satisfactory ground grid resistance at minimum cost. For substations with several decades of service, there is some concern that a grid may have deteriorated, been damaged during equipment installation or excavation, or that initial soil resistivity measurements were lost or may not have been correctly performed. Ground grid conductors change the substation surface voltage distribution. Any voltage measurements taken at the complete substation will also vary from the tests made without conductors present. During testing, current was injected in the soil by probes placed near the ground grid. The current tends to follow the ground grid conductors since copper is a far better conductor than the soil it is placed in. Resistance readings near grids will be lower than readings in undisturbed soil. Since computer models were unavailable for many years, analyzing the effect of the grid conductors on soil resistivity measurements was very difficult. As a result, soil resistivity measurements made close to substations were of little use to the engineer unless some means of correcting the measured values could be developed. This paper will present results of soil resistivity measurements near a substation ground grid before and after a ground grid has been installed and describes a means of calculating the undisturbed soil model.

Lodwig, S.G.; Mateja, S.A. [ComEd, Chicago, IL (United States)

1996-11-01T23:59:59.000Z

265

Design of AC substation grounding system.  

E-Print Network [OSTI]

??The purpose for this paper is to understand the basic foundation used to safely design a substation grounding system for AC systems. The following criteria… (more)

Meas, Ra

2014-01-01T23:59:59.000Z

266

118-K-1 Burial Ground - Hanford Site  

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

Receiving and Processing Facility Waste Sampling and Characterization Facility Waste Treatment Plant 118-K-1 Burial Ground Email Email Page | Print Print Page |Text Increase...

267

White House budget to ground SOFIA  

Science Journals Connector (OSTI)

... in to make up the difference, the cuts would ground the aeroplane, a modified Boeing 747 that carries a 2.5-metre telescope. ...

Alexandra Witze

2014-03-04T23:59:59.000Z

268

Programmatic Environmental Impact Statement for Ground Water...  

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

Environmental Impact Statement for Ground Water Volumes I & II (October 1996) Optical character recognition has been applied to these files, but full search capabilities...

269

Ozone production by nanoporous dielectric barrier glow discharge in atmospheric pressure air  

SciTech Connect (OSTI)

This study is aimed at demonstrating plasma-chemical ozone production based on low temperature atmospheric pressure glow discharge through nanoporous dielectric barriers. The 20 kHz ac driven discharge is formed in air or oxygen gas flowing in the axial direction of the cylindrical plasma reactor containing four parallel aluminum rods covered with nanoporous alumina films. The discharge utilizing nanoporous dielectric barrier is more uniform and more energy efficient in ozone generation than the discharge through smooth-surface dielectric barriers.

Cho, J. H.; Koo, I. G.; Choi, M. Y.; Lee, W. M. [Department of Chemistry and Division of Energy Systems Research, Ajou University, Suwon 443-749 (Korea, Republic of)

2008-03-10T23:59:59.000Z

270

Interplay of air pollution and asthma immunopathogenesis: A focused review of diesel exhaust and ozone  

Science Journals Connector (OSTI)

Abstract Controlled human exposure experiments with diesel exhaust particles (DEPs) and ozone serve to illustrate the important role pollutants play in modulating both allergic mechanisms and immune responses to affect the immunopathogenesis of airway diseases such as asthma. For DEP, evidence is stronger for the exacerbation of existing asthma rather than for the development of new disease. To the extent that this enhancement occurs, the augmentation of Th2-type immunity seems to be a common element. For ozone, neutrophilic inflammation, altered immune cell phenotype and function and oxidative stress are all marked responses that likely contribute to underlying immune-inflammatory features of asthma. Evidence is also emerging that unique gene signatures and epigenetic control of immune and inflammatory-based genes are playing important roles in the magnitude of the impact ozone is having on respiratory health. Indeed, the interplay between air pollutants such as DEP and ozone and asthma immunopathogenesis is an ongoing concern in terms of understanding how exposure to these agents can lead to worsening of disease. To this end, asthmatics may be pre-disposed to the deleterious effects of pollutants like ozone, having constitutively modified host defense functions and gene signatures. Although this review has utilized DEP and ozone as example pollutants, more research is needed to better understand the interplay between air pollution in general and asthma immumopathogenesis.

Neil E. Alexis; Chris Carlsten

2014-01-01T23:59:59.000Z

271

Ozone response of foliage and cells of sensitive and tolerant potato cultivars  

SciTech Connect (OSTI)

The ozone response was contrasted between Cherokee' and Norchip', relatively ozone-sensitive and -tolerant potato cultivars, respectively. Leaf conductance of the two cultivars was determined with a diffusive resistance porometer before, during and after a 3-hour exposure to 0.25 ppm ozone (490 ..mu..g m3). While Cherokee foliage had a higher leaf conductance at the onset of the ozone exposure, conductance of Norchip foliage was too high throughout the experiment to account for relative tolerance of the latter cultivar. Norchip and Cherokee both exhibited abaxial and bifacial necrosis with more numerous lesions on the abaxial surface. Abaxial and bifacial necrosis were characterized by injured spongy, and spongy plus palisade cells, respectively. The percent of injured cell types were the same in both cultivars, but the absolute number of cells injured was greater in Cherokee than Norchip. Two types of cell injury were observed in necrotic lesions. One type of injury was characterized by collapsed, basophilic cells and the other by intact, basophilic cells. The ozone response of isolated leaf protoplasts of the two cultivars was similar. Two types of protoplast injury were observed, one characterized by lysis and the other by reduced staining with fluorescein diacetate. Maximum protoplast response to ozone was observed within the first 5 minutes of a 15 minute exposure. Little additional protoplast response occurred after 10 minutes.

Illman, B.L.

1983-01-01T23:59:59.000Z

272

Ground water contamination in the United States  

Science Journals Connector (OSTI)

...volume of ground water in storage exceeds the vol-ume...geo-thermal water; intruded seawater; water affected by evapotranspiration...pressure and the volume in storage may fluctuate according...Estimates of ground water in storage in the United States...communities have over-pumped their freshwater aquifers...

VI Pye; R Patrick

1983-08-19T23:59:59.000Z

273

Ground Turkey and Potato Plate Ingredients  

E-Print Network [OSTI]

Ground Turkey and Potato Plate Ingredients: 1 onion 1/2 pound ground turkey 1 cup ketchup, low sodium 4 medium potatoes 4 ounces cheddar cheese, low-fat Directions 1. Cut the ends off of the onion. Meanwhile pierce potatoes in several places with fork. Place on baking dish in microwave oven. Microwave

Liskiewicz, Maciej

274

Evaluation of Bare Ground on Rangelands using Unmanned Aerial Vehicles  

SciTech Connect (OSTI)

Attention is currently being given to methods that assess the ecological condition of rangelands throughout the United States. There are a number of different indicators that assess ecological condition of rangelands. Bare Ground is being considered by a number of agencies and resource specialists as a lead indicator that can be evaluated over a broad area. Traditional methods of measuring bare ground rely on field technicians collecting data along a line transect or from a plot. Unmanned aerial vehicles (UAVs) provide an alternative to collecting field data, can monitor a large area in a relative short period of time, and in many cases can enhance safety and time required to collect data. In this study, both fixed wing and helicopter UAVs were used to measure bare ground in a sagebrush steppe ecosystem. The data were collected with digital imagery and read using the image analysis software SamplePoint. The approach was tested over seven different plots and compared against traditional field methods to evaluate accuracy for assessing bare ground. The field plots were located on the Idaho National Laboratory (INL) site west of Idaho Falls, Idaho in locations where there is very little disturbance by humans and the area is grazed only by wildlife. The comparison of fixed-wing and helicopter UAV technology against field estimates shows good agreement for the measurement of bare ground. This study shows that if a high degree of detail and data accuracy is desired, then a helicopter UAV may be a good platform. If the data collection objective is to assess broad-scale landscape level changes, then the collection of imagery with a fixed-wing system is probably more appropriate.

Robert P. Breckenridge; Maxine Dakins

2011-01-01T23:59:59.000Z

275

Petroleum contaminated ground-water: Remediation using activated carbon  

Science Journals Connector (OSTI)

Ground-water contamination resulting from the leakage of crude oil and refined petroleum products during extraction and processing operations is a serious and a growing environmental problem in Nigeria. Consequently, a study of the use of activated carbon (AC) in the clean up was undertaken with the aim of reducing the water contamination to a more acceptable level. In the experiments described, crude-oil contamination of ground water was simulated under laboratory conditions using ground-water samples collected from existing hand-dug wells at Eagle Island, Port Harcourt, Nigeria. Different masses of the absorbent (i.e., activated carbon) were then added to the samples of ground water. The so treated water samples were left to equilibrate for 7 days, after which the total petroleum hydrocarbon (TPH) contents of the samples were measured. Adsorption isotherms were derived for the two forms of activated carbon used, namely granular activated-carbon (GAC) and powdered activated-carbon (PAC). Results of the TPH analyses showed that activated carbon is an excellent means for the stripping-off of the contaminant: there were decreases in contaminant concentration from an initial concentration of 9304.70 mg/l to average final concentrations of 361.00 and 12.37 mg/l, that is, 96% and 99.9% resulting from the same amounts of GAC and PAC applications respectively. The results of this study revealed that the powdered form of AC would be very effective in the remediation of petroleum-hydrocarbon contaminated ground water and its use is therefore recommended.

M.J. Ayotamuno; R.B. Kogbara; S.O.T. Ogaji; S.D. Probert

2006-01-01T23:59:59.000Z

276

The evolution of the Brewer-Dobson circulation and the ozone layer during the last three decades.  

E-Print Network [OSTI]

??In 1985 Joseph Farman and his colleagues of the British Antarctic Survey published a paper [Farman et al. 1985] showing that the total ozone content… (more)

Ossó Castillón, Albert

2014-01-01T23:59:59.000Z

277

Ozone Measurements at Geesthacht (53.4° N, 10.4° E) with an Advanced Raman Lidar  

Science Journals Connector (OSTI)

An advanced Raman lidar, which measures ozone, water vapor, aerosol backscatter, and extinction profiles simoultaneously and independently, has been in routine operation at Geesthacht since February 1995. Results...

Marcus Seiwazi; Jens Reichardt…

1997-01-01T23:59:59.000Z

278

Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Ground Source Heat Pumps Ground Source Heat Pumps Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Ground Source Heat Pumps Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps GSHP Links Related documents and websites An Information Survival Kit for the Prospective Geothemral Heat Pump Owner List of Heat Pumps Incentives List of Ground Source Heat Pumps Incentives Policy Makers' Guidebook for Geothermal Heating and Cooling Various ways to configure a geothermal heat pump system. (Source: The Geo-Heat Center's Survival Kit for the Prospective Geothemral Heat Pump

279

Little Climates -- Weather Just Above The Ground  

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

Weather Just Above The Ground Weather Just Above The Ground Nature Bulletin No. 481-A February 17, 1973 Forest Preserve District of Cook County George W, Dunne, President Roland F. Eisenbeis, Supt. of Conservation LITTLE CLIMATES -- Weather Just Above the Ground In a previous bulletin we talked about little climates, underground, resulting from weather conditions in the soil. Just above the ground there is another "little climate" equally important. We frequently see evidences of it without realizing how and why they were produced. Just above the earth, there lies a narrow layer of changeable weather that is affected at both surfaces by its mighty neighbors: the land below and the restless air in the atmosphere above it. Under the spell of gravity, it clings to the ground in spite of all but the swiftest winds. In this layer there are special weather conditions overlooked by nearly everyone.

280

Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Ground Source Heat Pumps Ground Source Heat Pumps (Redirected from Geothermal Heat Pumps) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Ground Source Heat Pumps Geothermal Technologies There are many types of Geothermal Technologies that take advantage of the earth's heat: Hydrothermal Systems Enhanced Geothermal Systems (EGS) Sedimentary Geothermal Systems Co-Produced Geothermal Systems Geothermal Direct Use Ground Source Heat Pumps GSHP Links Related documents and websites An Information Survival Kit for the Prospective Geothemral Heat Pump Owner List of Heat Pumps Incentives List of Ground Source Heat Pumps Incentives Policy Makers' Guidebook for Geothermal Heating and Cooling Various ways to configure a geothermal heat pump system. (Source: The Geo-Heat Center's Survival Kit for the Prospective Geothemral Heat Pump

Note: This page contains sample records for the topic "ground level ozone" 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

On the temperature dependence of organic reactivity, nitrogen oxides, ozone production, and the impact of emission controls in San Joaquin Valley, California  

E-Print Network [OSTI]

The San Joaquin Valley (SJV) experiences some of the worst ozone air quality in the US, frequently exceeding the California 8 h standard of 70.4 ppb. To improve our understanding of trends in the number of ozone violations ...

Pusede, S. E.

282

Definition: Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Ground Electromagnetic Techniques Jump to: navigation, search Dictionary.png Ground Electromagnetic Techniques Ground electromagnetic techniques measure electromagnetic fields in order to determine subsurface electrical resistivity with the earth surface as the observation point.[1] View on Wikipedia Wikipedia Definition The electromagnetic force is one of the four fundamental interactions in nature, the other three being the strong interaction, the weak interaction, and gravitation. This force is described by electromagnetic fields, and has innumerable physical instances including the interaction of electrically charged particles and the interaction of uncharged magnetic force fields with electrical conductors. The word

283

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Electromagnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Dictionary.png

284

E-Print Network 3.0 - atmospheric pollutants levels Sample Search...  

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

Dispersion a. Maximum ground-level ambient concentration b... Pollution Prevention, Control and Sustainability Instructor: V.M. Fthenakis, Tel: (212) 854-8885, Email: vmf......

285

E-Print Network 3.0 - atlas level-1 muon Sample Search Results  

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

ATLAS... of the Third Level Muon Trigger of the ATLAS Experiment at LHC S. Armstrong, K. A. Assamagan, J. T. M. Baines... - ground environment ... Source: Ecole...

286

Overview of ozone human exposure and health risk analyses used in the U.S. EPA's review of the ozone air quality standard.  

SciTech Connect (OSTI)

This paper presents an overview of the ozone human exposure and health risk analyses developed under sponsorship of the U.S. Environmental Protection Agency (EPA). These analyses are being used in the current review of the national ambient air quality standards (NAAQS) for ozone. The analyses consist of three principal steps: (1) estimating short-term ozone exposure for particular populations (exposure model); (2) estimating population response to exposures or concentrations (exposure-response or concentration-response models); and (3) integrating concentrations or exposure with concentration-response or exposure-response models to produce overall risk estimates (risk model). The exposure model, called the probabilistic NAAQS exposure model for ozone (pNEM/03), incorporates the following factors: hourly ambient ozone concentrations; spatial distribution of concentrations; ventilation state of individuals at time of exposure; and movement of people through various microenvironments (e.g., outdoors, indoors, inside a vehicle) of varying air quality. Exposure estimates are represented by probability distributions. Exposure-response relationships have been developed for several respiratory symptom and lung function health effects, based on the results of controlled human exposure studies. These relationships also are probabilistic and reflect uncertainties associated with sample size and variability of response among subjects. The analyses also provide estimates of excess hospital admissions in the New York City area based on results from an epidemiology study. Overall risk results for selected health endpoints and recently analyzed air quality scenarios associated with alternative 8-hour NAAQS and the current 1-hour standard for outdoor children are used to illustrate application of the methodology.

Whitfield, R. G.

1999-03-04T23:59:59.000Z

287

Interim site characterization report and ground-water monitoring program for the Hanford site solid waste landfill  

SciTech Connect (OSTI)

Federal and state regulations governing the operation of landfills require utilization of ground-water monitoring systems to determine whether or not landfill operations impact ground water at the point of compliance (ground water beneath the perimeter of the facility). A detection-level ground-water monitoring system was designed, installed, and initiated at the Hanford Site Solid Waste Landfill (SWL). Chlorinated hydrocarbons were detected at the beginning of the ground-water monitoring program and continue to be detected more than 1 year later. The most probable source of the chlorinated hydrocarbons is washwater discharged to the SWL between 1985 and 1987. This is an interim report and includes data from the characterization work that was performed during well installation in 1987, such as field observations, sediment studies, and geophysical logging results, and data from analyses of ground-water samples collected in 1987 and 1988, such as field parameter measurements and chemical analyses. 38 refs., 27 figs., 8 tabs.

Fruland, R.M.; Hagan, R.A.; Cline, C.S.; Bates, D.J.; Evans, J.C.; Aaberg, R.L.

1989-07-01T23:59:59.000Z

288

Grounded Renewable Energy | Open Energy Information  

Open Energy Info (EERE)

Grounded Renewable Energy Grounded Renewable Energy Jump to: navigation, search Name Grounded Renewable Energy Place Carbondale, Colorado Zip 81623 Sector Renewable Energy, Solar Product Grounded Renewable Energy designs turn-key solar systems for homes and businesses in Colorado. Coordinates 41.573959°, -75.501361° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.573959,"lon":-75.501361,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

289

Ground Insulation Measurement in AC IT Systems  

Science Journals Connector (OSTI)

In the chapter there is presented general information on physical nature of network-to-ground insulation. Sense of “insulation equivalent resistance” parameter is explained. A method of insulation resistances-to-...

Piotr Olszowiec

2013-01-01T23:59:59.000Z

290

Shielding and grounding in large detectors  

SciTech Connect (OSTI)

Prevention of electromagnetic interference (EMI), or ``noise pickup,`` is an important design aspect in large detectors in accelerator environments. Shielding effectiveness as a function of shield thickness and conductivity vs the type and frequency of the interference field is described. Noise induced in transmission lines by ground loop driven currents in the shield is evaluated and the importance of low shield resistance is emphasized. Some measures for prevention of ground loops and isolation of detector-readout systems are discussed.

Radeka, V.

1998-09-01T23:59:59.000Z

291

Sensitivity of China's ozone air quality to 2000-2050 global changes of1 climate and emissions2  

E-Print Network [OSTI]

1 Sensitivity of China's ozone air quality to 2000-2050 global changes of1 climate and emissions2 3 emissions of ozone precursors. The climate and16 emission effect in combination will increase afternoon mean increases18 in global (excluding China) anthropogenic emissions, 37% to Chinese emission19 increases

Wu, Shiliang

292

A numerical study of mass transfer of ozone dissolution in bubble plumes with an Euler-Lagrange Method  

E-Print Network [OSTI]

, as a model problem for a water purification system. The effect of bubble diameter and plume structure on mass are widely observed and exploited in engineering applications, with water purification using ozone bubble the mass transfer process of ozone dissolution in a bubble plume inside a rectangular water tank

Huang, Huaxiong

293

Impact of ozone on indoor air quality: a preliminary field study M. Nicolas, O. Ramalho, F. Maupetit  

E-Print Network [OSTI]

indoor air quality (IAQ) since they produce secondary pollutants, mainly aldehydes which are known to document the impact on IAQ of outdoor ozone during summer air pollution episodes. For this purpose, a oneImpact of ozone on indoor air quality: a preliminary field study M. Nicolas, O. Ramalho, F

Boyer, Edmond

294

Integration of ground subsidence hazard maps of abandoned coal mines in Samcheok, Korea  

Science Journals Connector (OSTI)

Integrated techniques were developed, applied, and validated for the analysis of ground subsidence hazards by abandoned coal mines in Samcheok, Korea, using a geographic information system (GIS). Slope, depth of drift, distance from drift, groundwater level, permeability, geology, and land use were extracted or calculated from the digital elevation model, topographic, drift distribution, borehole, geologic, and land use database. By using the constructed spatial database, the relations between the ground subsidence location and seven related factors were identified and quantified by frequency ratio (FR), weights-of-evidence (WOE), logistic regression (LR), and artificial neural network (ANN) models. The relations were used as factor ratings in the overlay analysis to create ground subsidence hazard indices and maps. The four ground subsidence hazard maps were reflected as the new input factors and integrated using FR, WOE, LR, and ANN models to make a hazard map. All of the subsidence hazard maps were validated by comparison with known ground subsidence locations that were not used in the analysis. As a result, the integrated ground subsidence hazard maps used four new subsidence-related input factors that showed a greater accuracy (96.46% for FR, 97.22% for WOE, 97.20% for LR, and 96.70% for ANN, respectively), than the individual ground subsidence maps (95.54% for FR, 94.22% for WOE, 96.89% for LR, and 94.45% for ANN, respectively) using the first seven factors.

Hyun-Joo Oh; Saro Lee

2011-01-01T23:59:59.000Z

295

Impact of ozonation and biological treatment on disinfection by-products  

SciTech Connect (OSTI)

The paper summarizes several recent studies on the impact of ozonation and biological treatment on DBP formation. Ozonation was characterized by the formation of ozonation DBPs such as aldehydes, assimilable organic carbon (AOC), biodegradable dissolved organic carbon (BDOC) and the oxidation of bromide to bromate. The oxidation of the DBP precursor compounds and the effectiveness of biotreatent for the control of DBPs were monitored by the formation potential (FP) for total organic halogen (TOX), total THMs (TTHMs) and total measured haloacetic acid (THAAs). Special attention was also given to the impact of bromide concentration on the speciation of the DBPs. A specific objective of the paper was to compare DBP control by batch biological treatment at the bench-scale to that by a continuous flow sand filter at the pilot-scale.

Shukairy, H.M.; Summers, R.S.; Miltner, R.J.

1994-01-01T23:59:59.000Z

296

Seismic fragility formulations for segmented buried pipeline systems including the impact of differential ground subsidence  

SciTech Connect (OSTI)

Though Differential Ground Subsidence (DGS) impacts the seismic response of segmented buried pipelines augmenting their vulnerability, fragility formulations to estimate repair rates under such condition are not available in the literature. Physical models to estimate pipeline seismic damage considering other cases of permanent ground subsidence (e.g. faulting, tectonic uplift, liquefaction, and landslides) have been extensively reported, not being the case of DGS. The refinement of the study of two important phenomena in Mexico City - the 1985 Michoacan earthquake scenario and the sinking of the city due to ground subsidence - has contributed to the analysis of the interrelation of pipeline damage, ground motion intensity, and DGS; from the analysis of the 48-inch pipeline network of the Mexico City's Water System, fragility formulations for segmented buried pipeline systems for two DGS levels are proposed. The novel parameter PGV{sup 2}/PGA, being PGV peak ground velocity and PGA peak ground acceleration, has been used as seismic parameter in these formulations, since it has shown better correlation to pipeline damage than PGV alone according to previous studies. By comparing the proposed fragilities, it is concluded that a change in the DGS level (from Low-Medium to High) could increase the pipeline repair rates (number of repairs per kilometer) by factors ranging from 1.3 to 2.0; being the higher the seismic intensity the lower the factor.

Pineda Porras, Omar Andrey [Los Alamos National Laboratory; Ordaz, Mario [UNAM, MEXICO CITY

2009-01-01T23:59:59.000Z

297

Radon concentrations in ground and drinking water in the state of Chihuahua, Mexico  

Science Journals Connector (OSTI)

This paper reports 222Rn concentrations in ground and drinking water of nine cities of Chihuahua State, Mexico. Fifty percent of the 114 sampled wells exhibited 222Rn concentrations exceeding 11 Bq/L, the maximum contaminant level (MCL) recommended by the USEPA. Furthermore, around 48% (123 samples) of the tap-water samples taken from 255 dwellings showed radon concentrations over the MCL. There is an apparent correlation between total dissolved solids and radon concentration in ground-water. The high levels of 222Rn found may be entirely attributed to the nature of aquifer rocks.

L. Villalba; L. Colmenero Sujo; M.E. Montero Cabrera; A. Cano Jiménez; M. Rentería Villalobos; C.J. Delgado Mendoza; L.A. Jurado Tenorio; I. Dávila Rangel; E.F. Herrera Peraza

2005-01-01T23:59:59.000Z

298

Covered Product Category: Ground-Source Heat Pumps | Department of Energy  

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

Ground-Source Heat Pumps Ground-Source Heat Pumps Covered Product Category: Ground-Source Heat Pumps October 7, 2013 - 10:32am Addthis ENERGY STAR Qualified Products FEMP provides acquisition guidance across a variety of product categories, including ground-source heat pumps (GSHPs), which are an ENERGY STAR®-qualified product category. Federal laws and executive orders mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law. Most manufacturers display the ENERGY STAR label on complying models. For a model not displaying this label, check the manufacturer's literature to determine if it meets the efficiency requirements outlined by ENERGY STAR. Performance Requirements for Federal Purchases For the most up-to-date efficiency levels required by ENERGY STAR, look for

299

GROUND PLANE INSULATION FAILURE IN THE FIRST TPC SUPERCONDUCTING COIL  

E-Print Network [OSTI]

is WIUUTEO GROUND PLANE INSULATION FAILURE IN THE FIRST TPCOn August 27, 1980, an insulation failure occurred dt-ringby a failure uf ground plane insulation. ACKNOWLEDGMENTS The

Green, M.A.

2010-01-01T23:59:59.000Z

300

Ground heat exchanger design for direct geothermal energy systems .  

E-Print Network [OSTI]

??Direct geothermal energy systems use the ground to heat and cool buildings. Ground-source heat pump (GSHP) systems are the most widespread form of direct geothermal… (more)

COLLS, STUART

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Recovery Act - Geothermal Technologies Program:Ground Source...  

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

Recovery Act - Geothermal Technologies Program:Ground Source Heat Pumps Recovery Act - Geothermal Technologies Program:Ground Source Heat Pumps A detailled description of the...

302

Water Quality Surface and Ground | Open Energy Information  

Open Energy Info (EERE)

Ground Jump to: navigation, search Retrieved from "http:en.openei.orgwindex.php?titleWaterQualitySurfaceandGround&oldid612197" Category: NEPA Resources...

303

EPA - Ground Water Discharges (EPA's Underground Injection Control...  

Open Energy Info (EERE)

EPA - Ground Water Discharges (EPA's Underground Injection Control Program) webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: EPA - Ground Water...

304

Hybrid Ground Source System Analysis and Tool Development | Department...  

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

Hybrid Ground Source System Analysis and Tool Development Hybrid Ground Source System Analysis and Tool Development Project objectives: 1. Compile filtered hourly data for three...

305

Ground Movement in SSRL Ring  

SciTech Connect (OSTI)

Users of the Stanford Synchrotron Radiation Lightsource (SSRL) are being affected by diurnal motion of the synchrotron's storage ring, which undergoes structural changes due to outdoor temperature fluctuations. In order to minimize the effects of diurnal temperature fluctuations, especially on the vertical motion of the ring floor, scientists at SSRL tried three approaches: painting the storage ring white, covering the asphalt in the middle of the ring with highly reflective Mylar and installing Mylar on a portion of the ring roof and walls. Vertical motion in the storage ring is measured by a Hydrostatic Leveling System (HLS), which calculates the relative height of water in a pipe that extends around the ring. The 24-hr amplitude of the floor motion was determined using spectral analysis of HLS data, and the ratio of this amplitude before and after each experiment was used to quantitatively determine the efficacy of each approach. The results of this analysis showed that the Mylar did not have any significant effect on floor motion, although the whitewash project did yield a reduction in overall HLS variation of 15 percent. However, further analysis showed that the reduction can largely be attributed to a few local changes rather than an overall reduction in floor motion around the ring. Future work will consist of identifying and selectively insulating these local regions in order to find the driving force behind diurnal floor motion in the storage ring.

Sunikumar, Nikita; /UCLA /SLAC

2011-08-25T23:59:59.000Z

306

Thermochemical Kinetics for Multireference Systems: Addition Reactions of Ozone  

SciTech Connect (OSTI)

The 1,3-dipolar cycloadditions of ozone to ethyne and ethene provide extreme examples of multireference singlet-state chemistry, and they are examined here to test the applicability of several approaches to thermochemical kinetics of systems with large static correlation. Four different multireference diagnostics are applied to measure the multireference characters of the reactants, products, and transition states; all diagnostics indicate significant multireference character in the reactant portion of the potential energy surfaces. We make a more complete estimation of the effect of quadruple excitations than was previously available, and we use this with CCSDT/CBS estimation of Wheeler et al. (Wheeler, S. E.; Ess, D. H.; Houk, K. N. J. Phys. Chem. A 2008, 112, 1798.) to make new best estimates of the van der Waals association energy, the barrier height, and the reaction energy to form the cycloadduct for both reactions. Comparing with these best estimates, we present comprehensive mean unsigned errors for a variety of coupled cluster, multilevel, and density functional methods. Several computational aspects of multireference reactions are considered: (i) the applicability of multilevel theory, (ii) the convergence of coupled cluster theory for reaction barrier heights, (iii) the applicability of completely renormalized coupled cluster methods to multireference systems, (iv) the treatment by density functional theory, (v) the multireference perturbation theory for multireference reactions, and (vi) the relative accuracy of scaling-type multilevel methods as compared with additive ones. It is found that scaling-type multilevel methods do not perform better than the additive-type multilevel methods. Among the 48 tested density functionals, only M05 reproduces the best estimates within their uncertainty. Multireference perturbation theory based on the complete-active-space reference wave functions constructed using a small number of reaction-specific active orbitals gives accurate forward barrier heights; however, it significantly underestimates reaction energies.

Zhao, Yan; Tishchenko, Oksana; Gour, Jeffrey R.; Li, Wei; Lutz, Jesse; Piecuch, Piotr; Truhlar, Donald G.

2009-05-14T23:59:59.000Z

307

Definition: Ground Gravity Survey | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: Ground Gravity Survey Jump to: navigation, search Dictionary.png Ground Gravity Survey The ground gravitational method is the study of the distribution of mass in the subsurface with the observation point at the earth's surface.[1] View on Wikipedia Wikipedia Definition A gravity anomaly is the difference between the observed acceleration of a planet's gravity and a value predicted from a model. A location with a positive anomaly exhibits more gravity than predicted, while a negative anomaly exhibits a lower value than predicted. References ↑ http://www.amazon.com/Geophysical-Field-Theory-Three-Volume-Gravitational/dp/0124020410 Ret Like Like You like this.Sign Up to see what your friends like.

308

GroundedPower Inc | Open Energy Information  

Open Energy Info (EERE)

GroundedPower Inc GroundedPower Inc Jump to: navigation, search Name GroundedPower Inc Place Gloucester, Massachusetts Zip 1930 Product Massachusetts-based company developing home and building energy management systems via IP-based software. Coordinates 37.413962°, -76.526305° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.413962,"lon":-76.526305,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

309

Ground Gravity Survey | Open Energy Information  

Open Energy Info (EERE)

Ground Gravity Survey Ground Gravity Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Gravity Survey Details Activities (48) Areas (34) Regions (2) NEPA(2) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Gravity Techniques Parent Exploration Technique: Gravity Techniques Information Provided by Technique Lithology: Distribution of density in the subsurface enables inference of rock type. Stratigraphic/Structural: Delineation of steeply dipping formations, geological discontinuities and faults, intrusions and large-scale deposition of silicates due to hydrothermal activity. Hydrological: Density of sedimentary rocks are strongly influenced by fluid contained within pore space. Dry bulk density refers to the rock with no moisture, while the wet bulk density accounts for water saturation; fluid content may alter density by up to 30%.(Sharma, 1997)

310

Appendix B Ground Water Management Policy  

Office of Legacy Management (LM)

Ground Water Management Policy Ground Water Management Policy for the Monticello Mill Tailings Site and Adjacent Areas This page intentionally left blank Docun~ent Number Q0029500 Appendix B State of Utah DEPARTblENT OF NATURAL RESOURCES DIVISION OF WATER RIGHTS Ground-Water Management Policy for the Mot~ticello Mill Tailings Site and Adjacent Areas The Monticello Mill Tailings Site is on the southeast portion of the tovm of Monticello in Sectton 36, T33S, K23E and Section 31, i33S. R24E, SLB&M. The mill site was used from 1942 to 1960 in the processing of uranium and vanadium. The U.S. Department of Energy (DOE) is currently cleaning up the site. The site is in the small canyon that forms the drainage for South Creek. The general direction of water flow, of both surface streams and the shallow

311

Transmission line modeling with explicit grounding representation  

Science Journals Connector (OSTI)

This paper presents a new model of an overhead transmission line for electromagnetic transient computations. The unique feature of the model is the explicit representation of the tower grounding configuration and terminal substation grounds. Other properties of the model are: (1) accurate frequency dependent parameter representation from DC to several MHz; (2) explicit modeling of line asymmetries; and (3) high numerical efficiency. The model implementation is based on the solution of the transmission line differential equations resulting in a set of step response functions, forming a matrix. The step response matrix is utilized in a time domain simulation of electric power networks by a linear convolution scheme. The transmission line model is validated with actual system test data. The model is useful for computing the ground potential rise of transmission towers due to lightning or switching surges, insulation stress, etc. Typical applications are described in the paper.

G.J. Cokkinides; A.P.Sakis Meliopoulos

1988-01-01T23:59:59.000Z

312

Ground-Based Microwave Radiometer Measurements  

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

Ground-Based Microwave Radiometer Measurements Ground-Based Microwave Radiometer Measurements and Radiosonde Comparisons During the WVIOP2000 Field Experiment D. Cimini University of L'Aquila L'Aquil, Italy E. R. Westwater Cooperative Institute for Research in the Environmental Sciences University of Colorado National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Y. Han Science System Applications National Aeronautics Space Administration Goddard Space Flight Center Greenbelt, Maryland S. Keihm Jet Propulsion Laboratory California Institute of Technology Pasadena, California Introduction During September to October 2000, a water vapor intensive operational period (WVIOP) was conducted at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) Cloud and

313

Formation of assimilable organic carbon (AOC) and specific natural organic matter (NOM) fractions during ozonation of phytoplankton  

Science Journals Connector (OSTI)

Ozonation of natural surface water increases the concentration of oxygen-containing low molecular weight compounds. Many of these compounds support microbiological growth and as such are termed assimilable organic carbon (AOC). Phytoplankton can contribute substantially to the organic carbon load when surface water is used as source for drinking water treatment. We have investigated dissolved organic carbon (DOC) formation from the ozonation of a pure culture of Scenedesmus vacuolatus under defined laboratory conditions, using a combination of DOC fractionation, analysis of selected organic acids, aldehydes and ketones, and an AOC bioassay. Ozonation of algae caused a substantial increase in the concentration of DOC and AOC, notably nearly instantaneously upon exposure to ozone. As a result of ozone exposure the algal cells shrunk, without disintegrating entirely, suggesting that DOC from the cell cytoplasm leaked through compromised cell membranes. We have further illustrated that the specific composition of newly formed AOC (as concentration of organic acids, aldehydes and ketones) in ozonated lake water differed in the presence and absence of additional algal biomass. It is therefore conceivable that strategies for the removal of phytoplankton before pre-ozonation should be considered during the design of drinking water treatment installations, particularly when surface water is used.

Frederik Hammes; Sébastien Meylan; Elisabeth Salhi; Oliver Köster; Thomas Egli; Urs von Gunten

2007-01-01T23:59:59.000Z

314

Soil radioactivity levels and radiological risk assessment in the highlands of Hunza, Pakistan  

Science Journals Connector (OSTI)

......will require some additional remediation of the soil. Similar to external...dose rate in air at 1 m above ground level. It is calculated as...gamma-dose at 1 m height above the ground level due to the presence of...gamma-ray spectrometry. Water Air Soil Pollut. (2010......

Manzoor Ali; Sajid Iqbal; Mohammad Wasim; Mohammad Arif; Farhan Saif

2013-03-01T23:59:59.000Z

315

Cloud Retrieval Algorithm for the European Space Agency's Global Ozone Monitoring Experiment  

E-Print Network [OSTI]

Cloud Retrieval Algorithm for the European Space Agency's Global Ozone Monitoring Experiment T and surface in the UV visible. The cloud retrieval algorithm presented here combines spectral threshold tests's moderately high resolution spectra (0.4 nm) in and around the O2 A band to retrieve cloud- cover fraction

Chance, Kelly

316

Impact of large scale circulation on European summer surface ozone and consequences for modelling forecast  

E-Print Network [OSTI]

of using day-to-day varying chemical boundary conditions produced by a global chemical weather forecast platform instead of climatological monthly means at the frontiers of a regional model. We performed two- transport models (CTMs) that represent physical and chemical processes controlling ozone concentrations

Menut, Laurent

317

An ozone climatology of the Dallas-Fort Worth area and its relationship to meteorology  

E-Print Network [OSTI]

direction were found the most predictive. In general, low wind speeds and wind directions from the E-SE were most favorable for high ozone. Wind direction biases were examined using windroses and by examining upwind vs. downwind behavior at the periphery...

Nobis, Timothy Edward

2012-06-07T23:59:59.000Z

318

Relationship between Surface and Free Tropospheric Ozone in the Western U.S.  

Science Journals Connector (OSTI)

Relationship between Surface and Free Tropospheric Ozone in the Western U.S. ... Lower free tropospheric mixing ratios over Boulder Colorado in summer are elevated by only about 8 ppbv compared to a location on the west coast of the U.S. (Trinidad Head California) for the period August 1997-March 2002 (10). ...

Dan Jaffe

2010-12-10T23:59:59.000Z

319

Ozone depletion during the solar proton events of October//November 2003 as seen by SCIAMACHY  

E-Print Network [OSTI]

Ozone depletion during the solar proton events of October//November 2003 as seen by SCIAMACHY G changes caused by the solar proton events from 26 October to 6 November 2003, known as the ``Halloween differences are given. Two regimes can be distinguished, one above about 50 km dominated by HOx (H, OH, HO2

Steinhoff, Heinz-Jürgen

320

Examination of U.S. Environmental Regulatory Criteria for Ozone from a Statistical Perspective  

E-Print Network [OSTI]

quality remediation plan aimed at achieving compliance with the standard, typically a lengthy and costly and O'Hagan, 1997; Cox et al. 1999). In the United States, recent review of National Ambient Air Quality Standards led to revision of the U.S. regulatory criteria for ambient ozone and particulate matter

Washington at Seattle, University of

Note: This page contains sample records for the topic "ground level ozone" 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

Net ecosystem fluxes of isoprene over tropical South America inferred from Global Ozone Monitoring Experiment (GOME)  

E-Print Network [OSTI]

Net ecosystem fluxes of isoprene over tropical South America inferred from Global Ozone Monitoring estimate isoprene emissions over tropical South America during 1997­2001 using column measurements (ATSR) firecounts and GOME NO2 columns. We find that South America can be split into eastern and western

Chance, Kelly

322

Constraining global isoprene emissions with Global Ozone Monitoring Experiment (GOME) formaldehyde column measurements  

E-Print Network [OSTI]

Constraining global isoprene emissions with Global Ozone Monitoring Experiment (GOME) formaldehyde emission estimates are highly uncertain because of a lack of direct observations. Formaldehyde (HCHO the observation of this trace gas to help constrain isoprene emissions. We use HCHO column observations from

Chance, Kelly

323

Three-dimensional modeling of ozone on Mars Franck Lefe`vre,1  

E-Print Network [OSTI]

picture of a global anticorrelation between the ozone (O3) and water vapor columns. However and Structure: Middle atmosphere--constituent transport and chemistry (3334); 5405 Planetology: Solid Surface Planets: Atmospheres--composition and chemistry; 6225 Planetology: Solar System Objects: Mars; KEYWORDS

Forget, François

324

The impact of large scale biomass production on ozone air pollution in Joost B. Beltman a  

E-Print Network [OSTI]

The impact of large scale biomass production on ozone air pollution in Europe Joost B. Beltman a , Carlijn Hendriks a , Markus Tum b , Martijn Schaap a,* a TNO, Department of Climate, Air by up to 25% and 40%. Air pollution mitigation strategies should consider land use management. a r t i

Utrecht, Universiteit

325

Supporting Information for Impact of Chlorine Emissions from Sea-Salt Aerosol on Coastal Urban Ozone  

E-Print Network [OSTI]

DIOXIDE H2O2 HYDROGEN PEROXIDE NH3 AMMONIA NIT AEROSOL NITRATE SO2 SULFUR DIOXIDE SO3 SULFUR TRIOXIDE OSD extensions* NO NITRIC OXIDE NO2 NITROGEN DIOXIDE O3 OZONE HONO NITROUS ACID HNO3 NITRIC ACID HNO4 PERNITRIC ACID N2O5 NITROGEN PENTOXIDE NO3 NITRATE RADICAL HO2 HYDROPEROXY RADICAL CO CARBON MONOXIDE CO2 CARBON

Dabdub, Donald

326

THE INFLUENCE OF CHRONIC OZONE EXPOSURE ON GLOBAL CARBON AND WATER CYCLES  

Science Journals Connector (OSTI)

Ozone (O3) is a phytotoxic greenhouse gas that has increased more than 3-fold at Earth’s surface from pre-industrial values. In addition to directly increasing radiative forcing as a greenhouse gas, O3 indirectly impacts climate through altering ...

D. Lombardozzi; Samuel Levis; G. Bonan; P.G. Hess; J.P. Sparks

327

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

328

White Pine Emission Trends of Monoterpenes and Sesquiterpenes After Acute Ozone Exposure  

E-Print Network [OSTI]

White Pine Emission Trends of Monoterpenes and Sesquiterpenes After Acute Ozone Exposure Daniel M of White Pine (Pinus strobus) specimens located at the University of Michigan Biological Station (UMBS). To measure terpene production, dynamic branch enclosures were simultaneously positioned on White Pine

Collins, Gary S.

329

Assessing Ozone and PM2.5 Air Quality Data for use with  

E-Print Network [OSTI]

Assessing Ozone and PM2.5 Air Quality Data for use with Asthma and Cardiovascular Disease Data of different methods of generating air quality data that could be used routinely in an EPHT Network. · The project will help us understand and improve the air quality data needed for a sustainable EPHT network

330

Does an Increase in Air Quality Models' Resolution Bring Surface Ozone Concentrations Closer to Reality?  

E-Print Network [OSTI]

Does an Increase in Air Quality Models' Resolution Bring Surface Ozone Concentrations Closer challenge for small-scale air quality modeling is the assessment of health impact and popu- lation exposure. Introduction A current trend in small-scale air quality modeling is to quantify the health impact of exposure

Menut, Laurent

331

THE FILTERING OF OZONE CONCENTRATION MEASUREMENTS COLLECTED IN A TURBULENT AIR STREAM USING BAYESIAN MODELS  

E-Print Network [OSTI]

; Fast response (O 3 ) gas analyzers are widely used to monitor (O 3 ) concentration in air pollution is becom­ ing increasingly important in air pollution science and boundary layer meteorology. For exampleTHE FILTERING OF OZONE CONCENTRATION MEASUREMENTS COLLECTED IN A TURBULENT AIR STREAM USING

West, Mike

332

Direct Determination of Trace-Level Haloacetic Acids in Drinking Water by Two-1 Dimensional Ion Chromatography with Suppressed Conductivity2  

E-Print Network [OSTI]

1 Direct Determination of Trace-Level Haloacetic Acids in Drinking Water by Two-1 Dimensional Ion thetreatment process of drinking water, disinfectants (chlorine, ozone, chlorine dioxide)13 react on water of the nine existing Halo-Acetic Acids (HAA) are commonly found15 in drinking water(Monochloroacetic acid MCAA

Boyer, Edmond

333

Preliminary fire hazard analysis for the PUTDR and TRU trenches in the Solid Waste Burial Ground  

SciTech Connect (OSTI)

This document represents the Preliminary Fire Hazards Analysis for the Pilot Unvented TRU Drum Retrieval effort and for the Transuranic drum trenches in the low level burial grounds. The FHA was developed in accordance with DOE Order 5480.7A to address major hazards inherent in the facility.

Gaschott, L.J.

1995-06-16T23:59:59.000Z

334

Dynamic Rupture through a Branched Fault Configuration at Yucca Mountain, and Resulting Ground Motions  

E-Print Network [OSTI]

Dynamic Rupture through a Branched Fault Configuration at Yucca Mountain, and Resulting Ground of Yucca Mountain, Nevada, a potential site for a high-level radioactive waste repository. The Solitario km away from the SCF beneath the crest of Yucca Mountain, causing the repository site to experience

335

A numerical simulation tool for multilayer grounding analysis integrated in an open-source CAD interface  

E-Print Network [OSTI]

of the challenges of the electrical engineers and designers since the beginning of the large-scale harnessing-source platform 1. Introduction Obtaining the distribution of potential levels of an earthing system has been one of electricity. Thus, the grounded electrode dissipates the electrical currents generated during a fault

Colominas, Ignasi

336

Above Ground Storage Tank (AST) Inspection Form  

E-Print Network [OSTI]

Above Ground Storage Tank (AST) Inspection Form Petroleum Bulk Storage Form Facility Name: ______________________ Tank No:_______________ Date:_____________ Inspection Parameter Result Comments/Corrective Actions 1. Is there leaking in the interstitial space (not DRY)? YES/NO/NA 2. Tank surface shows signs of leakage? YES/NO/NA 3

Pawlowski, Wojtek

337

Recent Ground Motion Studies at SLAC  

SciTech Connect (OSTI)

Studies of slow ground motion have recently been performed at SLAC using the linac laser alignment system over a period of one month. Two significant effects responsible for the observed motion have been identified, namely tidal forces and variation of external atmospheric pressure. The latter is of particular interest as it may result in misalignments with rather short wavelength.

Seryi, Andrei

2000-06-28T23:59:59.000Z

338

Ground Vibration Measurements at LHC Point 4  

SciTech Connect (OSTI)

Ground vibration was measured at Large Hadron Collider (LHC) Point 4 during the winter shutdown in February 2012. This report contains the results, including power and coherence spectra. We plan to collect and analyze vibration data from representative collider halls to inform specifications for future linear colliders, such as ILC and CLIC. We are especially interested in vibration correlations between final focus lens locations.

Bertsche, Kirk; /SLAC; Gaddi, Andrea; /CERN

2012-09-17T23:59:59.000Z

339

Failure of ozone and nitrogen dioxide to enhance lung tumor development in hamsters  

SciTech Connect (OSTI)

We tested the hypothesis that the two common oxidant air pollutants, ozone and nitrogen dioxide, modulate the development of respiratory tract tumors in Syrian golden hamsters. The animals received subcutaneous injections of the carcinogen diethylnitrosamine (20 mg/kg) twice a week while being exposed continuously to an atmosphere of 0.8 parts per million (ppm)* of ozone or 15 ppm of nitrogen dioxide. Animals were killed 16 weeks or 24 to 32 weeks after the beginning of the treatment. Ozone delayed the appearance of tracheal tumors and reduced the incidence of tumors in the lung periphery. A suspected neuroendocrine differentiation of those lung tumors could not be established by immunocytochemistry due to overfixation of tissues. On the other hand, ozone seemed to mitigate development of hepatotoxic lesions mediated by diethylnitrosamine. In animals treated with diethylnitrosamine and exposed to nitrogen dioxide, fewer tracheal tumors and no lung tumors were found. Only a few lung tumors were produced in animals treated with diethylnitrosamine and kept in an atmosphere of 65% oxygen. The previously observed neuroendocrine nature of tumors induced by simultaneous exposure to diethylnitrosamine and hyperoxia could not be established because the long fixation of tissues precluded immunocytochemical stains. Animals treated with diethylnitrosamine and kept in filtered air while being housed in wire-mesh cages developed fewer lung tumors than animals given the same treatment and kept on conventional bedding in shoebox cages. Although all inhalants tested are known to produce substantial cell proliferation in the respiratory tract, it was not possible to document whether this would enhance lung tumor development. The role of the two common air pollutants, ozone and nitrogen dioxide, as possible additional risks in the pathogenesis of lung cancer in animals continues to remain uncertain.

Witschi, H.; Breider, M.A.; Schuller, H.M. (Univ. of California, Davis, CA (United States))

1993-09-01T23:59:59.000Z

340

Long range transport of CO and ozone from source regions in Asia  

SciTech Connect (OSTI)

Based on current understanding of the atmosphere, CO and photochemically produced ozone can be transported thousands of kilometers prior to being removed. Emissions from Asia have a possible impact on the CO and ozone concentrations over the U.S. west coast following transport across the Pacific Ocean. If this is correct, then there are implications for ozone control strategies in the downwind region. Evidence includes: (1) Global 3D chemical transport models indicating a monthly mean enhancement of 10-20% on the US west coast for both CO and ozone during winter-spring due to emissions from Asia; and (2) CO and O{sub 3} data from several Pacific sites which demonstrate that Asian pollutants can be transported great distances. The weekly flask data clearly define a CO seasonal cycle. In the present analysis we use a locally weighted smoothing technique to identify individual data outliers from the smoothed seasonal cycle. We hypothesize that these outliers represent periods when continental emissions influenced the atmospheric mixing ratios at these locations. Using isentropic back trajectories we try to identify a possible source region or pathway for each event and present a distribution of the trajectory types for the events. For the events at Midway, Mauna Loa, Guam and Shemya, we are able to identify a source region for elevated CO in 82, 72, 65 and 50% of the events, respectively. At Mauna Loa and Midway a majority of the events occur during spring and are mostly associated with transport from Asia. These events bring the highest CO mixing ratios observed at any time during the year to these sites, with CO enhancements up to 46 ppb. For Mauna Loa, a small number of events during summer are due to transport from North and Central America. In-situ ozone from Mauna Loa also demonstrates an impact from Asian emissions.

Jaffe, D.; Mahura, A. [Univ. of Alaska, Fairbanks, AK (United States); [Institute of Northern Ecological Problems, Moscow (Russian Federation); Novelli, P. [Univ. of Colorado, Boulder, CO (United States); Merrill, J. [Univ. of Rhode Island, Narraganset, RI (United States)

1996-12-31T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

WHAT DO THREAT LEVELS AND RESPONSE LEVELS MEAN? THREAT LEVELS  

E-Print Network [OSTI]

WHAT DO THREAT LEVELS AND RESPONSE LEVELS MEAN? THREAT LEVELS: The UK Threat Level is decided by the Government's Joint Terrorism Analysis Centre (JTAC). It is the system to assess the threat to the UK from Threat Levels: Low - an attack is unlikely Moderate - an attack is possible, but not likely Substantial

Edinburgh, University of

342

Longevity of Emplacement Drift Ground Support Materials  

SciTech Connect (OSTI)

The purpose of this analysis is to evaluate the factors affecting the longevity of emplacement drift ground support materials and to develop a basis for the selection of materials for ground support that will function throughout the preclosure period of a potential repository at Yucca Mountain. REV 01 ICN 01 of this analysis is developed in accordance with AP-3.10Q, Analyses and Models, Revision 2, ICN 4, and prepared in accordance with the Technical Work Plan for Subsurface Design Section FY 01 Work Activities (CRWMS M&O 2001a). The objective of this analysis is to update the previous analysis (CRWMS M&O 2000a) to account for related changes in the Ground Control System Description Document (CRWMS M&O 2000b), the Monitored Geologic Repository Project Description Document, which is included in the Requirements and Criteria for Implementing a Repository Design that can be Operated Over a Range of Thermal Modes (BSC 2001), input information, and in environmental conditions, and to provide updated information on candidate ground support materials. Candidate materials for ground support are carbon steel and cement grout. Steel is mainly used for steel sets, lagging, channel, rock bolts, and wire mesh. Cement grout is only considered in the case of grouted rock bolts. Candidate materials for the emplacement drift invert are carbon steel and granular natural material. Materials are evaluated for the repository emplacement drift environment based on the updated thermal loading condition and waste package design. The analysis consists of the following tasks: (1) Identify factors affecting the longevity of ground support materials for use in emplacement drifts. (2) Review existing documents concerning the behavior of candidate ground support materials during the preclosure period. (3) Evaluate impacts of temperature and radiation effects on mechanical and thermal properties of steel. Assess corrosion potential of steel at emplacement drift environment. (4) Evaluate factors affecting longevity of cement grouts for fully grouted rock bolt system. Provide updated information on cement grout mix design for fully grouted rock bolt system. (5) Evaluate longevity of materials for the emplacement drift invert.

D.H.Tang

2001-05-30T23:59:59.000Z

343

Assessment of ground subsidence using GIS and the weights-of-evidence model  

Science Journals Connector (OSTI)

The weights-of-evidence model, one of the Bayesian probability models was applied in evaluating a ground subsidence spatial hazard near abandoned underground coal mines (AUCMs) at Magyori area, Samcheok City in Korea using GIS. Using ground subsidence location and a spatial database containing information such as mining tunnel, borehole, topography, geology, and land use, the weights-of-evidence model was applied to calculate each relevant factor's rating for the Magyori area in Korea. Seven major factors controlling or related to ground subsidence were determined from the probability analysis of the existing ground subsidence area; depth of drift and distance from drift from the mining tunnel map, slope gradient obtained from the topographical map, ground water level and permeability from borehole data, geology and land use. Tests of conditional independence were performed for the selection of factors, allowing 6 combinations of factors to be analyzed. For the analysis of mapping ground subsidence spatial hazard, the contrast values, W+ and W?, of each factor's rating were overlaid spatially. The results of the analysis were validated using receiver operating characteristic (ROC) with the previous ground subsidence locations. In the case of all factor used, the area under the ROC curve (AUC) showed 0.9667, which corresponds to an accuracy of 96.67%. In the case of the combinations, the case of distance from drift, depth of ground water and land use used, showed the 90.71% (AUC: 0.9071) accuracy which is the best result produced in this analysis. The results can be used for hazard prevention and land-use planning near AUCM areas.

Hyun-Joo Oh; Saro Lee

2010-01-01T23:59:59.000Z

344

Ground-water sample collection and analysis plan for the ground-water surveillance project  

SciTech Connect (OSTI)

The Pacific Northwest Laboratory performs ground-water sampling activities at the US Department of Energy`s (DOE`s) Hanford Site in support of DOE`s environmental surveillance responsibilities. The purpose of this document is to translate DOE`s General Environmental Protection Program (DOE Order 5400.1) into a comprehensive ground-water sample collection and analysis plan for the Hanford Site. This sample collection and analysis plan sets forth the environmental surveillance objectives applicable to ground water, identifies the strategy for selecting sample collection locations, and lists the analyses to be performed to meet those objectives.

Bryce, R.W.; Evans, J.C.; Olsen, K.B.

1991-12-01T23:59:59.000Z

345

Ground-water sample collection and analysis plan for the ground-water surveillance project  

SciTech Connect (OSTI)

The Pacific Northwest Laboratory performs ground-water sampling activities at the US Department of Energy's (DOE's) Hanford Site in support of DOE's environmental surveillance responsibilities. The purpose of this document is to translate DOE's General Environmental Protection Program (DOE Order 5400.1) into a comprehensive ground-water sample collection and analysis plan for the Hanford Site. This sample collection and analysis plan sets forth the environmental surveillance objectives applicable to ground water, identifies the strategy for selecting sample collection locations, and lists the analyses to be performed to meet those objectives.

Bryce, R.W.; Evans, J.C.; Olsen, K.B.

1991-12-01T23:59:59.000Z

346

One-pot room-temperature conversion of cyclohexane to adipic acid by ozone and UV light  

Science Journals Connector (OSTI)

...nitric acid oxidation method (3). The first step is air oxidation of cyclohexane under high temperatures (125° to 165...Finlayson-Pitts B. J. Pitts J. N. Jr. , Tropospheric air pollution: Ozone, airborne toxics, polycyclic aromatic hydrocarbons...

Kuo Chu Hwang; Arunachalam Sagadevan

2014-12-19T23:59:59.000Z

347

Climate change, ambient ozone, and health in 50 US cities Michelle L. Bell & Richard Goldberg & Christian Hogrefe &  

E-Print Network [OSTI]

Climate change, ambient ozone, and health in 50 US cities Michelle L. Bell & Richard Goldberg Haven, CT 06511, USA e-mail: michelle.bell@yale.edu R. Goldberg Center for Climate Systems Research emissions of volatile organic compounds (VOCs),

348

Effects of Future Climate and Biogenic Emissions Changes on Surface Ozone over the United States and China  

Science Journals Connector (OSTI)

Future projections of near-surface ozone concentrations depend on the climate/emissions scenario used to drive future simulations, the direct effects of the changing climate on the atmosphere, and the indirect effects of changing temperatures and ...

Jin-Tai Lin; Kenneth O. Patten; Katharine Hayhoe; Xin-Zhong Liang; Donald J. Wuebbles

2008-07-01T23:59:59.000Z

349

Five blind men and the elephant: what can the NASA Aura ozone measurements tell us about stratosphere-troposphere exchange?  

E-Print Network [OSTI]

Five blind men and the elephant: what can the NASA Auraof the five blind men and the elephant, where the five Auramen” who are touching the “elephant” (ozone) in dif- ferent

Tang, Q.; Prather, M. J

2012-01-01T23:59:59.000Z

350

Toxicity of ozonated estuarine water to juvenile blue crabs (Callinectes sapidus) and Juvenile Atlantic menhaden (Brevoortia tyrannus)  

SciTech Connect (OSTI)

Large quantitites of estuarine and marine water are treated with chlorine to prevent condenser system fouling at power plants. Chlorine and its residual by-products, however, are toxic to many forms of aquatic life. Ozone is one alternative oxidant which has proven to be an effective biocide and disinfectant in many fresh water applications. Ozonation of estuarine and marine waters, however, may produce residual compounds similar to those produced by chlorination. This study was initiated to provide baseline information on the toxicity of ozonated estuarine water to two representative estuarine species. The blue crab, Callinectes sapidus Rathbun, and the Atlantic menhaden, Brevoortia tyrannus Latrobe, were selected because of their wide distribution and commercial importance. The toxicity of ozone has been compared with chlorine toxicity data from the literature in an effort to examine possible similarities in toxicity.

Richardson, L.B.; Burton, D.T.

1981-02-01T23:59:59.000Z

351

Instrument Characterization for the Detection of Long-term Changes in Stratospheric Ozone: An Analysis of the SBUY/2 Radiometer  

Science Journals Connector (OSTI)

The scientific objective of unambiguously detecting subtle global trends in upper stratospheric ozone requires that one maintain a thorough understanding of the satellite-based remote sensors intended for this task. The instrument now in use for ...

S. E. Frederick; R. P. Cebula; D. F. Heath

1986-09-01T23:59:59.000Z

352

arXiv:quant-ph/99050166May1999 A simple formula for ground state energy of a two-electron atom  

E-Print Network [OSTI]

() A simple expression for a ground state energy for a two-electron atom is derived. For this assumption basedarXiv:quant-ph/99050166May1999 A simple formula for ground state energy of a two-electron atom M to calculate energy levels of the He atom. He discussed a model when both electrons of a two-electron atom move

Auzinsh, Marcis

353

Demonstration of Advanced Technologies for Multi-Load Washers in Hospitality and Healthcare – Ozone Based Laundry Systems  

SciTech Connect (OSTI)

The objective of this demonstration project was to evaluate market-ready retrofit technologies for reducing the energy and water use of multi-load washers in healthcare and hospitality facilities. Specifically, this project evaluated laundry wastewater recycling technology in the hospitality sector and ozone laundry technology in both the healthcare and hospitality sectors. This report documents the demonstration of ozone laundry system installations at the Charleston Place Hotel in Charleston, Sout Carolina, and the Rogerson House assisted living facility in Boston, Massachusetts.

Boyd, Brian K.; Parker, Graham B.; Petersen, Joseph M.; Sullivan, Greg; Goetzler, W.; Sutherland, T. A.; Foley, K. J.

2014-08-14T23:59:59.000Z

354

Ground-water resources of Lanfair and Fenner Valleys and vicinity, San Bernardino County, California  

SciTech Connect (OSTI)

Lanfair and Fenner Valleys and vicinity cover about 1300 square miles in eastern San Bernardino County, California. Average annual precipitation ranges from 3 to 10 inches over the area. Ground water is utilized primarily for stock and domestic purposes, and occurs in the unconsolidated deposits as well as in the highly fractured consolidated rocks. Ground-water levels in wells range from 5 to 600 feet below land surface, and well yields range from 3 to 1200 gallons per minute throughout the study area. Records indicate that water levels are at or near their predevelopment levels. Springs occur along faults and formational contacts and generally discharge less than 5 gallons per minute. Measured ground-water outflow from Lanfair Valley at Piute Spring ranged from 100 to 630 acre-feet per year. Outflow from Fenner Valley was estimated to be 270 acre-feet per year. Most of the water is of good quality for domestic and stock use. However, water from two wells indicates a concentration of sulfate that exceeds the recommended limit for drinking water. Water supplies are adequate for present needs. However, large-scale pumping would result in the lowering of the water table and a reduction of the ground water in storage. 10 refs., 2 figs., 4 tabs.

Freiwald, D.A.

1984-07-01T23:59:59.000Z

355

Ground Source Heat Pump System Data Analysis  

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

Peer Review Peer Review GSHP System Data Analysis Xiaobing Liu, Ph.D. Oak Ridge National Laboratory liux2@ornl.gov (865-574-2593) 4/3/2013 - GSHP Data Analysis in 1 st phase of U.S.-China CERC-BEE - GSHP ARRA Grantee Data Mining 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: High first cost of ground heat exchangers (GHXs) and lack of knowledge/trust in achievable benefits are major barriers preventing

356

Ground Source Heat Pump System Data Analysis  

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

Peer Review Peer Review GSHP System Data Analysis Xiaobing Liu, Ph.D. Oak Ridge National Laboratory liux2@ornl.gov (865-574-2593) 4/3/2013 - GSHP Data Analysis in 1 st phase of U.S.-China CERC-BEE - GSHP ARRA Grantee Data Mining 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: High first cost of ground heat exchangers (GHXs) and lack of knowledge/trust in achievable benefits are major barriers preventing

357

Sprites, elf transients, and positive ground strokes  

SciTech Connect (OSTI)

In two summertime mesoscale convective systems (MCSs), mesospheric optical sprite phenomena were often coincident with both large-amplitude positive cloud-to-ground lightning and transient Schumann resonance excitations of the entire Earth-ionosphere cavity. These observations, together with earlier studies of MCS electrification, suggest that sprites are triggered when the rapid removal of large quantities of positive charge from an areally extensive charge layer stresses the mesosphere to dielectric breakdown. 46 refs., 7 figs., 1 tab.

Boccippio, D.J.; Boldi, R.; Williams, E.R. [Massachusetts Inst. of Technology, Cambridge, MA (United States)] [and others

1995-08-25T23:59:59.000Z

358

External breaking of ground-state symmetry  

Science Journals Connector (OSTI)

Ground-state symmetry can be broken by an external field. The threshold value of the symmetry-breaking field may be roughly estimated by comparing experimentally the behavior of two identical physical quantities, as functions of the field, for the set of field directions equivalent, with respect to the action, to a group generator. The kinetic coefficients as the functions of magnetic induction B are used as an illustration.

S. Malinowski

1994-01-01T23:59:59.000Z

359

R/Blkstripe CTB Ground Strap  

E-Print Network [OSTI]

5 5 4 4 3 3 2 2 1 1 D D C C B B A A Orange Black Yellow Blue R/Blkstripe Tan Red CTB Ground Strap Title Size Document Number R ev Date: Sheet o f ? ToFr 2003_S Run 4 L.V Setup Rice. U. Bonner Lab B 1 1, Limited (picoFuse) @ 3.0 A 7x"VNTC"#14awgrated17A Actualoperating=7.7Amax. LOW VOLTAGE SUPPLY SETTINGS

Llope, William J.

360

Prospects for the formation of ultracold polar ground state KCs molecules via an optical process  

E-Print Network [OSTI]

Heteronuclear alkali-metal dimers represent the class of molecules of choice for creating samples of ultracold molecules exhibiting an intrinsic large permanent electric dipole moment. Among them, the KCs molecule, with a permanent dipole moment of 1.92 Debye still remains to be observed in ultracold conditions. Based on spectroscopic studies available in the literature completed by accurate ab initio calculations, we propose several optical coherent schemes to create ultracold bosonic and fermionic KCs molecules in their absolute rovibrational ground level, starting from a weakly bound level of their electronic ground state manifold. The processes rely on the existence of convenient electronically excited states allowing an efficient stimulated Raman adiabatic transfer of the level population.

Borsalino, D; Aymar, M; Luc-Koenig, E; Dulieu, O; Bouloufa-Maafa, N

2015-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Federal Energy Management Program: Covered Product Category: Ground-Source  

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

Ground-Source Heat Pumps to someone by E-mail Ground-Source Heat Pumps to someone by E-mail Share Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Facebook Tweet about Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Twitter Bookmark Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Google Bookmark Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Delicious Rank Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on Digg Find More places to share Federal Energy Management Program: Covered Product Category: Ground-Source Heat Pumps on AddThis.com... Energy-Efficient Products Federal Requirements Covered Product Categories

362

New and Underutilized Technology: Commercial Ground Source Heat Pumps |  

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

Commercial Ground Source Heat Commercial Ground Source Heat Pumps New and Underutilized Technology: Commercial Ground Source Heat Pumps October 8, 2013 - 2:59pm Addthis The following information outlines key deployment considerations for commercial ground source heat pumps within the Federal sector. Benefits Commercial ground source heat pumps are ground source heat pump with loops that feed multiple packaged heat pumps and a single ground source water loop. Unit capacity is typically 1-10 tons and may be utilized in an array of multiple units to serve a large load. Application Condensing boilers are appropriate for housing, service, office, and research and development applications. Key Factors for Deployment FEMP has made great progress with commercial ground source heat pump technology deployment within the Federal sector. Primary barriers deal with

363

Category:Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Ground Electromagnetic Techniques Ground Electromagnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermalpower.jpg Looking for the Ground Electromagnetic Techniques page? For detailed information on Ground Electromagnetic Techniques, click here. Category:Ground Electromagnetic Techniques Add.png Add a new Ground Electromagnetic Techniques Technique Subcategories This category has the following 2 subcategories, out of 2 total. E [×] Electromagnetic Profiling Techniques‎ 1 pages [+] Electromagnetic Sounding Techniques‎ (1 categories) 2 pages Pages in category "Ground Electromagnetic Techniques" The following 2 pages are in this category, out of 2 total. E Electromagnetic Profiling Techniques Electromagnetic Sounding Techniques Retrieved from "http://en.openei.org/w/index.php?title=Category:Ground_Electromagnetic_Techniques&oldid=689834"

364

The Design of Ground-Coupled Heat Pump Systems  

E-Print Network [OSTI]

Ground-coupled heat pumps are being installed in increasing numbers due to proven performance and economy. The overall thermal resistance between the ground coupling fluid and a given type of surrounding soil is affected by pipe material, wall...

Parker, J. D.

1985-01-01T23:59:59.000Z

365

Analysis of Contaminant Rebound in Ground Water in Extraction...  

Office of Environmental Management (EM)

Analysis of Contaminant Rebound in Ground Water in Extraction Wells at the Tuba City, Arizona, Site Analysis of Contaminant Rebound in Ground Water in Extraction Wells at the Tuba...

366

Diffusion Multilayer Sampling of Ground Water in Five Wells at...  

Office of Environmental Management (EM)

Diffusion Multilayer Sampling of Ground Water in Five Wells at the Tuba City, Arizona, Site Diffusion Multilayer Sampling of Ground Water in Five Wells at the Tuba City, Arizona,...

367

Response of continuous pipelines to tunnel induced ground deformations  

E-Print Network [OSTI]

This thesis develops analytical solutions for estimating the bending moments and axial loads in a buried pipeline due to ground movements caused by tunnel construction in soft ground. The solutions combine closed-form, ...

Ieronymaki, Evangelia S

2011-01-01T23:59:59.000Z

368

Case study of underground pipe ground coupled heat pump system  

Science Journals Connector (OSTI)

Aiming to give some advices on the ground coupled heat pump system design in Sichuan Province, China, a typical ground source heat pump (GSHP) system in Sichuan Province was tested in a whole operational year,...

Min Zheng ??; Bai-yi Li ???; Zheng-yong Qiao ???

2012-03-01T23:59:59.000Z

369

165 F ... Poultry, ground poultry Stuffing with poultry, meat & fish  

E-Print Network [OSTI]

165° F ... Poultry, ground poultry Stuffing with poultry, meat & fish Microwave cooking & reheating Reheating leftovers 155° F ... Ground meat & fish Injected meat (i.e. tenderized) 145° F ... Meat, fish

370

Definition: Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

Pumps Pumps Jump to: navigation, search Dictionary.png Ground Source Heat Pumps A Ground Source Heat Pump is a central building heating and/or cooling system that takes advantage of the relatively constant year-round ground temperature to pump heat to or from the ground.[1][2][3] View on Wikipedia Wikipedia Definition A geothermal heat pump or ground source heat pump (GSHP) is a central heating and/or cooling system that pumps heat to or from the ground. It uses the earth as a heat source (in the winter) or a heat sink (in the summer). This design takes advantage of the moderate temperatures in the ground to boost efficiency and reduce the operational costs of heating and cooling systems, and may be combined with solar heating to form a geosolar system with even greater efficiency. Ground source heat pumps

371

Building Technologies Office: Ground Source Heap Pump Data Mining Research  

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

Ground Source Heap Pump Ground Source Heap Pump Data Mining Research Project to someone by E-mail Share Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Facebook Tweet about Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Twitter Bookmark Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Google Bookmark Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Delicious Rank Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on Digg Find More places to share Building Technologies Office: Ground Source Heap Pump Data Mining Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities

372

Microsoft Word - BingQuestioniSixOzone8-hr11.doc  

Gasoline and Diesel Fuel Update (EIA)

Reformulated Gasoline Use Under Reformulated Gasoline Use Under the 8-Hour Ozone Rule September 2002 ii Energy Information Administration/Reformulated Gasoline Use Contacts This report was prepared by the Office of Integrated Analysis and Forecasting of the Energy Information Administration. General questions concerning the report may be directed to Mary J. Hutzler (202/586-2222, mhutzler@eia.doe.gov), Director, Office of Integrated Analysis and Forecasting, or James Kendell (202/586-9646, james.kendell@eia.doe.gov), Director, Oil and Gas Division. Specific questions about the report may be directed to the following analyst: Stacy MacIntyre 202/586-9795 stacy.macintyre@eia.doe.gov 1 Energy Information Administration/Reformulated Gasoline Use Reformulated Gasoline Use Under the 8-Hour Ozone Rule

373

Measurements of springtime Antarctic ozone depletion and development of a balloonborne ultraviolet photometer  

SciTech Connect (OSTI)

The research described herein consists of two parts. The first part is a description of the design of a balloon-borne ultraviolet photometer to measure ozone and the result of a flight using this instrument. The second part of this thesis describes the modifications made on the standard commercially available electrochemical ozonesonde and the results of some experiments performed both in the laboratory and during stratospheric balloon flights. Using this modified ECC system, 33 successful balloon flights were made at McMurdo Station, Antarctica during the austral spring of 1986 to study the temporal and vertical development of the so-called Antarctic Ozone Hole. The results of these flights are described in detail.

Harder, J.W.

1987-01-01T23:59:59.000Z

374

Total Ozone Mapping Spectrometer (TOMS) Derived Data, Global Earth Coverage (GEC) from NASA's Earth Probe Satellite  

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

This is data from an external datastream processed through the ARM External Data Center (XDC) at Brookhaven National Laboratory. The XDC identifies sources and acquires data, called "external data", to augment the data being generated within the ARM program. The external data acquired are usually converted from native format to either netCDF or HDF formats. The GEC collection contains global data derived from the Total Ozone Mapping Spectrometer (TOMS) instrument on the Earth Probe satellite, consisting of daily values of aerosol index, ozone and reflectivity remapped into a regular 1x1.25 deg grid. Data are available from July 25, 1996 - December 31, 2005, but have been updated or replaced as of September 2007. See the explanation on the ARM web site at http://www.arm.gov/xds/static/toms.stm and the information at the NASA/TOMS web site: http://toms.gsfc.nasa.gov/ (Registration required)

375

Appendix E Supporting Information for Ground Water Modeling  

Office of Legacy Management (LM)

Supporting Information for Ground Water Modeling Supporting Information for Ground Water Modeling This page intentionally left blank Contents Section Geologic Map of Site Area ........................................................................................................ E1.O Stream Flow Measurements ...................................................................................................... E2.0 Estimates of Ground Water Flow .............................................................................................. E3.0 .......................................... MODFLOW Flow Budget Analysis for OU 1 1 1 Model Subregions E4.0 ............................................................................ Burro Canyon Aquifer Ground Water Model E5.0 This page intentionally left blank

376

Recommendation 195: Mitigation of Contamination in Bear Creek Burial Grounds  

Broader source: Energy.gov [DOE]

The ORSSAB requests DOE provide possible remedial actions to mitigate releases of contamination from Bear Creek Burial Grounds.

377

Effects of Plug-In Hybrid Electric Vehicles on Ozone Concentrations in Colorado  

Science Journals Connector (OSTI)

Effects of Plug-In Hybrid Electric Vehicles on Ozone Concentrations in Colorado ... Changes in PM10 and PM2.5 concentrations in Colorado (and most areas of the western U.S. outside California) were negligible. ... The biogenic, area, and mobile source inventories were provided by the National Park Service (17) based on an updated version of the Western Regional Air Partnership (WRAP) inventories from 2002 used for the Rocky Mountain Atmospheric Nitrogen and Sulfur (RoMANS) study. ...

Gregory L. Brinkman; Paul Denholm; Michael P. Hannigan; Jana B. Milford

2010-07-15T23:59:59.000Z

378

Ozone (o3) efficacy on reduction of phytophthora capsici in recirculated horticultural irrigation water  

E-Print Network [OSTI]

effect. These inhibitors, also known as scavengers, can terminate the chain reaction and inhibit ozone decay and thus hydroxyl radical formation. Examples of scavengers include bicarbonate and carbonate, phosphates, humic or other organic acids... and chitin or chitosan, but lack chloroplasts (Cavalier- Smith, 1986, Tyler, 2001). Genomic analysis of RNA sequences show that fungi and oomycetes (Chromista) are phylogenetically distinct (Tyler, 2001). Species of Phytophthora belong to the phylum...

McDonald, Garry Vernon

2009-05-15T23:59:59.000Z

379

System for detecting and limiting electrical ground faults within electrical devices  

DOE Patents [OSTI]

An electrical ground fault detection and limitation system for employment with a nuclear reactor utilizing a liquid metal coolant. Elongate electromagnetic pumps submerged within the liquid metal coolant and electrical support equipment experiencing an insulation breakdown occasion the development of electrical ground fault current. Without some form of detection and control, these currents may build to damaging power levels to expose the pump drive components to liquid metal coolant such as sodium with resultant undesirable secondary effects. Such electrical ground fault currents are detected and controlled through the employment of an isolated power input to the pumps and with the use of a ground fault control conductor providing a direct return path from the affected components to the power source. By incorporating a resistance arrangement with the ground fault control conductor, the amount of fault current permitted to flow may be regulated to the extent that the reactor may remain in operation until maintenance may be performed, notwithstanding the existence of the fault. Monitors such as synchronous demodulators may be employed to identify and evaluate fault currents for each phase of a polyphase power, and control input to the submerged pump and associated support equipment.

Gaubatz, Donald C. (Cupertino, CA)

1990-01-01T23:59:59.000Z

380

Current and future effects of ozone and atmospheric nitrogen deposition on California’s mixed conifer forests  

Science Journals Connector (OSTI)

Mixed conifer forests in southern California are exposed to elevated levels of ozone (O3) and atmospheric nitrogen (N) deposition. Growing season 12-h daily average O3 levels are 0.06–0.09 ppm, and N deposition rates are 5–45 kg N/ha per year. However, N deposition rates have high spatial variability due to the heterogeneous and open-patchy characteristics of these stands. Annual deposition fluxes are greatest to canopy-covered areas with high pollution exposure. The harmful effects of O3 on sensitive pines are well documented, and selected areas in the San Bernardino and San Gabriel mountains have reached N-saturation as demonstrated by high nitrate (NO3?) export in streams, and a suite of plant and edaphic indicators. The adverse effects of O3 culminate at the community level as a result of chronic effects on pine needle structure, retention, and physiology. Alterations in whole-tree biomass occur after several years due to higher carbon retention in the shoot for O3 detoxification, and lower carbon allocation to roots, as a result of O3 and N deposition. As a consequence, tree susceptibility to drought, windthrow, and root diseases could be exacerbated. Changes in forest community structure may occur due to the death of O3-sensitive pines and fire suppression, and pine replacement by faster-growing, O3-tolerant cedar and fir species. The negative impact of atmospheric N deposition occurs at the ecosystem-level as an alteration of biogeochemical nutrient cycling. For trees growing on N-deficient soils, increased supplies of N could moderate harmful O3 effects on growth for several decades. Over time, levels of soil N rise due to sustained inputs from the atmosphere, and the accelerated production and senescence of N-rich foliage by O3. The increase in soil N is expected to favor the proliferation of nitrophilous overstory and understory species relative to pines. At this stage, N-limitation of forest productivity would be partially alleviated, and N emissions from soil and NO3? leaching losses elevated as a result of high soil N availability. In the western San Bernardino Mountains and in low-elevation chaparral watersheds in the San Gabriel Mountains, NO3? levels in streams are as high or higher than in any other undisturbed montane watersheds in North America, and NO3? contamination of domestic water supplies is of near-term concern. The effects of chronic O3 exposure and N deposition are expected to become more prevalent in the southern Sierra Nevada as human populations and influences in adjacent areas increase in the coming years.

Brent K. Takemoto; Andrzej Bytnerowicz; Mark E. Fenn

2001-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Overcoming Barriers to Ground Source Heat Pumps in California  

E-Print Network [OSTI]

Overcoming Barriers to Ground Source Heat Pumps in California Geothermal Resources Development Account http://www.energy.ca.gov/geothermal/ grda.html May 2011 The Issue Ground source heat pumps can far made little impact in California. Estimates are that adoption of ground source heat pumps

382

Stratospheric ozone conservation by electron attachment to chlorine atoms: The negative-ion chemistry  

SciTech Connect (OSTI)

Creating low-energy electrons in the stratosphere by photoelectric emission has the beneficial effect of suppressing ozone destruction by Cl. This is because Cl is converted to Cl{sup {minus}}, which is less reactive. Critical to the success of this scheme is the ability to attach most of the electrons to Cl{sup {minus}} and its hydrates Cl{sup {minus}} (H{sub 2}O). We found that this attachment efficiency is rather high. This is remarkable given the fact that the electron affinity of Cl{sup {minus}} is less than that of NO{sub 3}{minus}. Photoddetachment of NO{sub 3}{minus} is the key factor that leads to this high efficiency. Computer calculations show that ozone increases with electron injection, and most of the electrons end up attaching to Cl{sup {minus}}(H{sub 2}O). We also point out that 40 km, the altitude at which most of the ozone destruction occurs, is also the optimum altitude for injecting photoelectric electrons. 12 refs., 6 figs.

Ho, D.D.M. (Lawrence Livermore National Lab., CA (USA)); Tsang, K.T. (Science Applications International Corp., McLean, VA (USA)); Wong, A.Y.; Siverson, R.J. (California Univ., Los Angeles, CA (USA). Dept. of Physics)

1990-10-12T23:59:59.000Z

383

Relationship between rubisco sulfhydryl content and relative sensitivity of potato cultivars to ozone  

SciTech Connect (OSTI)

Ozone (O{sub 3}) induced a reduction in quantity of rubisco in potato foliage. In vitro, O{sub 3} predisposed purified rubisco to elevated proteolysis; reagents which protected sulfhydryl (SH) groups suppressed this effect. We hypothesized that rubisco SH content correlated directly with foliar O{sub 3} sensitivity. Rubisco was purified from Solanum tuberosum L. O{sub 3}-tolerant cv. Superior (SP) and Norgold Russet (NR), and O{sub 3}-susceptible cv. Norland (NL) and Cherokee (CK). When native rubisco was titrated with DTNB, protein of NL contained 1.33 and 1.26 times more SH groups than SP and NR, respectively. Rubisco from CK also contained more SH groups than SP and NR, but the difference was not significant. Rubisco of SP, NR and CK denatured by SDS exhibited identical number of SH groups, however, NL exhibited 1.15 times more SH groups. The greater number of SH groups in rubisco from NL versus SP and NR may explain its relative sensitivity to ozone. The role of SH groups in ozone-sensitivity of CK will require further study.

Enyedi, A.J.; Pell, E.J. (Pennsylvania State Univ., University Park (USA))

1989-04-01T23:59:59.000Z

384

OZONE PRECURSORS, SOURCE REGIONS, AND O(3) FORMATION DURING THE TEXAQS 2000 STUDY.  

SciTech Connect (OSTI)

The DOE G-1 aircraft made flights on 14 days during the TexAQS 2000 study. On 7 of those days, the aircraft encountered highly localized plumes exhibiting O{sub 3} concentrations in excess of 150 ppb; on some days, peak O{sub 3} concentrations were in excess of 200 ppb. These ozone plumes were rapidly formed with an efficiency (O{sub 3} per NO{sub x} molecule consumed) much higher (7-20) than observed in other urban areas (3-4), and were frequently associated with high concentrations (>20 ppb) of secondary hydrocarbon species such as formaldehyde. Back trajectory analysis showed that the plumes were invariably associated with emissions from one or more of the large industrial complexes clustered about the Houston Ship Channel and Galveston Bay. Very high hydrocarbon reactivities were found in the vicinity of these facilities during morning flights. These hydrocarbon reactivities, in combination with local NO{sub x} emissions, were large enough to support instantaneous O{sub 3} production rates as high as 200 ppb/h. It is hypothesized that the combination of nitrogen oxides and hydrocarbon emissions emanating from this complex of industries provided a potent mixture of chemicals that caused the rapid formation of very high concentrations of ozone which, depending on the prevailing meteorology, could cause exceedance of the NAAQS ozone standard anywhere in the Houston metropolitan area.

DAUM,P.H.; KLEINMAN,L.I.; BRECHTEL,F.; LEE,Y.N.; NUNNERMACKER,L.J.; SPRINGSTON,S.R.; WEINSTEIN-LLOYD,J.

2001-10-01T23:59:59.000Z

385

Posters Ground-Based Radiometric Observations  

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

7 7 Posters Ground-Based Radiometric Observations of Atmospheric Water for Climate Research J. B. Snider, D. A. Hazen, A. J. Francavilla, W. B. Madsen, and M. D. Jacobson National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Introduction Surface-based microwave and infrared radiometers have been employed by the National Oceanic and Atmospheric Administration's Environmental Technology Laboratory (NOAA/ETL) in climate research since 1987. The ability of these systems to operate continuously and unattended for extended periods of time has provided significant new information on atmospheric water vapor and cloud liquid. These data are being employed to improve our understanding of cloud-radiation feedback mechanisms, an understanding

386

Ground Ring Of Two Dimensional String Theory  

E-Print Network [OSTI]

String theories with two dimensional space-time target spaces are characterized by the existence of a ``ground ring'' of operators of spin $(0,0)$. By understanding this ring, one can understand the symmetries of the theory and illuminate the relation of the critical string theory to matrix models. The symmetry groups that arise are, roughly, the area preserving diffeomorphisms of a two dimensional phase space that preserve the fermi surface (of the matrix model) and the volume preserving diffeomorphisms of a three dimensional cone. The three dimensions in question are the matrix eigenvalue, its canonical momentum, and the time of the matrix model.

Edward Witten

1991-08-16T23:59:59.000Z

387

Limiting factors in ground water remediation  

Science Journals Connector (OSTI)

If one is charged with restoring a contaminated aquifer today, the procedure of pumping contaminated water to the surface for treatment and discharge is most often the state-of-practice technology. The perceived success of pump-and-treat technology can be misleading if the hydrology and contaminant characteristics at the site are not adequately understood. A failure to understand the processes controlling contaminant transport can result in extremely long pumping periods and, consequently, costly and inefficient remediation. Effects of tailing, sorption, and residual immiscible fluids on time required for pump-and-treat remediation of ground water are discussed.

Clinton W. Hall; Jeffrey A. Johnson

1992-01-01T23:59:59.000Z

388

Best Possible Strategy for Finding Ground States  

SciTech Connect (OSTI)

Finding the ground state of a system with a complex energy landscape is important for many physical problems including protein folding, spin glasses, chemical clusters, and neural networks. Such problems are usually solved by heuristic search methods whose efficacy is judged by empirical performance on selected examples. We present a proof that, within the large class of algorithms that simulate a random walk on the landscape, threshold accepting is the best possible strategy. In particular, it can perform better than simulated annealing and Tsallis statistics. Our proof is the first example of a provably optimal strategy in this area.

Franz, Astrid; Hoffmann, Karl Heinz; Salamon, Peter

2001-06-04T23:59:59.000Z

389

Geometric renormalization below the ground state  

E-Print Network [OSTI]

The caloric gauge was introduced by Tao with studying large data energy critical wave maps mapping from $\\mathbf{R}^{2+1}$ to hyperbolic space $\\mathbf{H}^m$ in view. In \\cite{BIKT} Bejenaru, Ionescu, Kenig, and Tataru adapted the caloric gauge to the setting of Schr\\"odinger maps from $\\mathbf{R}^{d + 1}$ to the standard sphere $S^2 \\hookrightarrow \\mathbf{R}^3$ with initial data small in the critical Sobolev norm. Here we develop the caloric gauge in a bounded geometry setting with a construction valid up to the ground state energy.

Paul Smith

2011-12-06T23:59:59.000Z

390

120 Ground Water Monitoring & Remediation 32, no. 1/ Winter 2012/pages 120130 NGWA.org Ground Water Monitoring & Remediation  

E-Print Network [OSTI]

120 Ground Water Monitoring & Remediation 32, no. 1/ Winter 2012/pages 120­130 NGWA.org Ground Water Monitoring & Remediation © 2011, National Ground Water Association. Published 2011. This article known as emerging contaminants (ECs) to surrounding groundwater and surface water. ECs consist

391

U.S. Department of Energy UMTRA Ground Water Project Ground Water Pumping and Monitoring Plan  

Office of Legacy Management (LM)

GWMON 1.12-1 GWMON 1.12-1 U.S. Department of Energy UMTRA Ground Water Project Ground Water Pumping and Monitoring Plan for the Land Farm Pilot Test Monument Valley, Arizona August 2000 Prepared by U.S. Department of Energy Grand Junction Ofice Grand Junction, Colorado Project Number UGW-5 1 1-001 5-21-000 Document Number U0106701 This page intentionally left blank Document Number U0106701 Contents Contents 1.0 Introduction ....................................................................................................................... 1 2.0 Purpose and Scope ........................................................................................................... 1 3.0 Pilot-Test Extraction Wellfield 2 4.0 Water Elevation Measurements and Monitoring ............... 4

392

Ground Water Management Act (Virginia) | Department of Energy  

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

Ground Water Management Act (Virginia) Ground Water Management Act (Virginia) Ground Water Management Act (Virginia) < Back Eligibility Agricultural Commercial Construction Developer Fed. Government Fuel Distributor General Public/Consumer Industrial Installer/Contractor Institutional Investor-Owned Utility Local Government Municipal/Public Utility Nonprofit Rural Electric Cooperative Schools State/Provincial Govt Systems Integrator Tribal Government Utility Savings Category Water Buying & Making Electricity Home Weatherization Program Info State Virginia Program Type Environmental Regulations Siting and Permitting Provider Virginia Department of Environmental Quality Under the Ground Water Management Act of 1992, Virginia manages ground water through a program regulating the withdrawals in certain areas called

393

Optimization of solar assisted ground source heat pump system for space heating application by Taguchi method and utility concept  

Science Journals Connector (OSTI)

Abstract In the present research, a methodology is proposed to optimize the solar collector area and ground heat exchanger length for achieving higher COP of Solar Assisted Ground Source Heat Pump (SAGSHP) system using Taguchi method and utility concept. Four operating parameters for solar collector and four parameters for ground heat exchanger have been selected with mixed level variation using an L18 (21, 37) orthogonal array. The key parameters such as solar collector area, ground heat exchanger length and COP of the SAGSHP system are optimized to predict the best levels of operating parameters for maximum COP of SAGSHP system. Lower the better concept has been used for the solar collector area and ground heat exchanger length whereas higher the better concept has been employed for the COP of SAGSHP system and the results have been analyzed for the optimum conditions using signal-to-noise (SN) ratio and ANOVA method. Computations were carried out for 18 experimental trial runs by considering 2 ton heating load in winter season. The optimum COP for SAGSHP was estimated to be 4.23 from the utility concept, which is 8.74% higher than the optimum COP predicted by Taguchi optimization. Optimization of solar collector area and ground heat exchanger length by the utility concept has shown only about 2.3% reduction in area and 1.6% reduction in length respectively compared to those values optimized by the Taguchi method.

Vikas Verma; K. Murugesan

2014-01-01T23:59:59.000Z

394

Air dispersion modeling of particulate matter from ground-level area sources  

E-Print Network [OSTI]

permit when, in fact, its emissions result in off-property concentrations that would not cause a violation of the National Ambient Air Quality Standard (NAAQS) for PM. To ensure fair and reliable regulation of pollutant sources, dispersion models...

Meister, Michael Todd

2012-06-07T23:59:59.000Z

395

Characterization of ammonia emissions from ground level area sources at central texas dairies  

E-Print Network [OSTI]

) to potentially develop source specific NH3 emission control strategies. The GLAS including open-lots, free-stall barns, separated solids, primary and secondary lagoons and milking parlor were sampled to estimate NH3 emissions. In the first study, assessment...

Mutlu, Atilla

2009-05-15T23:59:59.000Z

396

Comparison of Aermod and ISCST3 Models for Particulate Emissions from Ground Level Sources  

E-Print Network [OSTI]

with the dispersion models ISCST3 and AERMOD, to determine the emission fluxes from cotton harvesting. The goal of this research was to document differences in emission factors as a consequence of the models used. The PM10 EFs developed for two-row and six-row pickers...

Botlaguduru, Venkata Sai V.

2010-07-14T23:59:59.000Z

397

Detection of 6 November 1997 Ground Level Event by for Milagro collaboration  

E-Print Network [OSTI]

in a scaler mode, which was primarily sensitive to muons, low energy photons, and electrons, and the detector) and modified algorithms for determining incident directions of muons, the energy threshold of Milagro Particles from the 6 November 1997 solar flare/CME(coronal mass ejection) with energies exceeding 10 Ge

California at Santa Cruz, University of

398

Detection of the 6 November 1997 Ground Level Event by Abe D. Falcone, for Milagro Collaboration  

E-Print Network [OSTI]

operated in a scaler mode which was primarily sensitive to muons, low energy photons, and electrons algorithms for determining incident directions of muons, the energy threshold of MilagroÃ?s telescope mode will be reduced to ~4 GeV by detecting the (~300 kHz) single muons and mini muon showers. For now, this low energy

California at Santa Cruz, University of

399

Cosmogenic 7Be in ground level air in Rostov-on-Don (Russia) (2001-2011)  

E-Print Network [OSTI]

The deposition flux of cosmogenic 7Be in the industrial city Rostov-on-Don (Russia) from 2001 to 2011 has been measured. The variations of annual 7Be deposition flux appear to be mainly correlated with the number of the meteorological parameters and solar activity. For the first time correlations of the volume activity of cosmogenic 7Be with such meteorological parameters as temperature, precipitation, wind speed, atmospheric pressure, relative humidity are identified.

Buraeva, E A; Nephedov, V C; Shramenko, B I; Stasov, V V; Zorina, L V

2013-01-01T23:59:59.000Z

400

Pesticide Levels in Ground and Surface Waters of Primavera do Leste Region, Mato Grosso, Brazil  

Science Journals Connector (OSTI)

......monoculture plantations, whose production has expanded greatly...and tends to sorb to organic matter from soil, it...reported as cells for minimum values means...by volatiliza- tion. Solar radiation also intensely...pesticides and other organic pollutants in river water......

Eliana F.G.C. Dores; Leandro Carbo; Maria L. Ribeiro; Ermelinda M. De-Lamonica-Freire

2008-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Multi-level Ground Glass Nodule Detection and Segmentation in CT Lung Images  

E-Print Network [OSTI]

for experiments is an order of magnitude larger than previous work. The effectiveness of our method in order to obtain the final GGN nodule boundaries and opacity values. Fig. 1. Flow chart of the proposed

Corso, Jason J.

402

A Farm-Level Evaluation of Agricultural Profit and Ground Water Quality: Texas Seymour Aquifer  

E-Print Network [OSTI]

performance standard or a design standard (obtained from the model solution of performance standard) will decrease farm net income (over variable cost) by $6,220 or $5,225 for risk neutral and risk averse case, respectively. Arbitrarily selected design...

Chowdhury, Manzoor; Lacewell, Ronald D.; McCarl, Bruce A.; Ozuna, Teofilo Jr.; Benson, Verel W.; Harris, Billy L.; Dyke, Paul T.

403

ESTIMATING GROUND-LEVEL SOLAR RADIATION AND EVAPOTRANSPIRATION IN PUERTO RICO  

E-Print Network [OSTI]

REMOTE SENSING Eric. W. Harmsen1 , John Mecikalski2 , Vanessa Acaron3 and Jayson Maldonado3 1 Department insolation, other meteorological variables (e.g., net radiation, soil heat flux, air temperature dew point remote sensing product. As a practical example of the use of the methodology, the Hargraeves-Samani ETo

Gilbes, Fernando

404

Physical Observables for Noncommutative Landau Levels  

E-Print Network [OSTI]

The Quantum Mechanics of a point particle on a Noncommutative Plane in a magnetic field is implemented in the present work as a deformation of the algebra which defines the Landau levels. I show how to define, in this deformed Quantum Mechanics, the physical observables, like the density correlation functions and Green function, on the completely filled ground level. Also it will be shown that the deformation changes the effective magnetic field which acts on the particles at long range, leading to an incompressible fluid with fractional filling of Laughlin type.

Mauro Riccardi

2005-11-29T23:59:59.000Z

405

Ground Motion Studies at NuMI  

SciTech Connect (OSTI)

Ground motion can cause significant deterioration in the luminosity of a linear collider. Vibration of numerous focusing magnets causes continuous misalignments, which makes the beam emittance grow. For this reason, understanding the seismic vibration of all potential LC sites is essential and related efforts in many sites are ongoing. In this document we summarize the results from the studies specific to Fermilab grounds as requested by the LC project leader at FNAL, Shekhar Mishra in FY04-FY06. The Northwestern group focused on how the ground motion effects vary with depth. Knowledge of depth dependence of the seismic activity is needed in order to decide how deep the LC tunnel should be at sites like Fermilab. The measurements were made in the NuMI tunnel, see Figure 1. We take advantage of the fact that from the beginning to the end of the tunnel there is a height difference of about 350 ft and that there are about five different types of dolomite layers. The support received allowed to pay for three months of salary of Michal Szleper. During this period he worked a 100% of his time in this project. That include one week of preparation: 2.5 months of data taking and data analysis during the full period of the project in order to guarantee that we were recording high quality data. We extended our previous work and made more systematic measurements, which included detailed studies on stability of the vibration amplitudes at different depths over long periods of time. As a consequence, a better control and more efficient averaging out of the daytime variation effects were possible, and a better study of other time dependences before the actual depth dependence was obtained. Those initial measurements were made at the surface and are summarized in Figure 2. All measurements are made with equipment that we already had (two broadband seismometers KS200 from GEOTECH and DL-24 portable data recorder). The offline data analysis took advantage of the full Fourier spectra information and the noise was properly subtracted. The basic formalism is summarized if Figure 3. The second objective was to make a measurement deeper under ground (Target hall, Absorber hall and Minos hall - 150 ft to 350 ft), which previous studies did not cover. All results are summarized in Figure 3 and 4. The measurements were covering a frequency range between 0.1 to 50 Hz. The data was taken continuously for at least a period of two weeks in each of the locations. We concluded that the dependence on depth is weak, if any, for frequencies above 1 Hz and not visible at all at lower frequencies. Most of the attenuation (factor of about 2-3) and damping of ground motion that is due to cultural activity at the surface is not detectable once we are below 150 ft underground. Therefore, accelerator currently under consideration can be build at the depth and there is no need to go deeper underground is built at Fermi National Laboratory.

Mayda M. Velasco; Michal Szleper

2012-02-20T23:59:59.000Z

406

This Week In Petroleum Printer-Friendly Version  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

of ground-level ozone and smog. Gasoline vapor pressure is also important for an automobile engine to operate efficiently. Vapor pressure must be high enough to allow an engine...

407

Modeling the impacts of biomass burning on air quality in and around Mexico City  

E-Print Network [OSTI]

The local and regional impacts of open fires and trash burning on ground-level ozone (O[subscript 3]) and fine carbonaceous aerosols in the Mexico City Metropolitan Area (MCMA) and surrounding region during two high fire ...

Lei, W.

408

Time and location differentiated NOX control in competitive electricity markets using cap-and-trade mechanisms  

E-Print Network [OSTI]

Due to variations in weather and atmospheric chemistry, the timing and location of nitrogen oxide (NOX) reductions determine their effectiveness in reducing ground-level ozone, which adversely impacts human health. Electric ...

Martin, Katherine C.

2007-01-01T23:59:59.000Z

409

E-Print Network 3.0 - airborne high energy Sample Search Results  

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

Materials Science 11 Learn More: www.arl.noaa.gov A Breath of Fresh Air: Improving Air Summary: for the Nation Whether it's ground-level ozone, fine particulate matter, or...

410

Experimental Studies of Hydroxyl Radical Initiated Tropospheric Oxidation of Unsaturated Hydrocarbons  

E-Print Network [OSTI]

radical, followed by chain propagating radical reactions. Their oxidation is the major source for ground level ozone formation in both rural and urban area and understanding their chemistry is essential for regional air quality modeling. Until recently...

Ghosh, Buddhadeb

2011-10-21T23:59:59.000Z

411

Medical Ozone (O3) Oil or Gas Applications Heal Osteonecrosis of the Jaw (ONJ) in Patients Treated with Bisphosphonates (BPs). Preliminary Results of a Single Arm Study.  

Science Journals Connector (OSTI)

...Antonio, TX Medical Ozone (O3) Oil or Gas Applications Heal Osteonecrosis of the Jaw...report the effect of localized of O3 oil or gas application in cancer patients (12 breast...2.5 cm) were treated with the ozone gas locally applied. All the patients received...

C. Ripamonti; M. Maniezzo; R. Ghiringhelli; E. Cislaghi; L. Mariani

2009-12-15T23:59:59.000Z

412

Photovoltaic ground fault and blind spot electrical simulations.  

SciTech Connect (OSTI)

Ground faults in photovoltaic (PV) systems pose a fire and shock hazard. To mitigate these risks, AC-isolated, DC grounded PV systems in the United States use Ground Fault Protection Devices (GFPDs), e.g., fuses, to de-energize the PV system when there is a ground fault. Recently the effectiveness of these protection devices has come under question because multiple fires have started when ground faults went undetected. In order to understand the limitations of fuse-based ground fault protection in PV systems, analytical and numerical simulations of different ground faults were performed. The numerical simulations were conducted with Simulation Program with Integrated Circuit Emphasis (SPICE) using a circuit model of the PV system which included the modules, wiring, switchgear, grounded or ungrounded components, and the inverter. The derivation of the SPICE model and the results of parametric fault current studies are provided with varying array topologies, fuse sizes, and fault impedances. Closed-form analytical approximations for GFPD currents from faults to the grounded current carrying conductor-known as %E2%80%9Cblind spot%E2%80%9D ground faults-are derived to provide greater understanding of the influence of array impedances on fault currents. The behavior of the array during various ground faults is studied for a range of ground fault fuse sizes to determine if reducing the size of the fuse improves ground fault detection sensitivity. The results of the simulations show that reducing the amperage rating of the protective fuse does increase fault current detection sensitivity without increasing the likelihood of nuisance trips to a degree. Unfortunately, this benefit reaches a limit as fuses become smaller and their internal resistance increases to the point of becoming a major element in the fault current circuit.

Flicker, Jack David; Johnson, Jay

2013-06-01T23:59:59.000Z

413

Definition: Ground Magnetics | Open Energy Information  

Open Energy Info (EERE)

Magnetics Magnetics Jump to: navigation, search Dictionary.png Ground Magnetics The surface magnetic method is the study of the distribution of magnetic minerals in the upper 20-30km of the earth's crust, recorded at an observation point on the earth's surface.[1][2] View on Wikipedia Wikipedia Definition A magnetometer, (pronounced mag-ne-TOM-e-ter), is a measuring instrument used to measure the strength and/or direction of the magnetic field, produced either in the laboratory or existing in nature. Some countries such as the USA, Canada and Australia classify the more sensitive magnetometers as military technology, and control their distribution. The International System of Units unit of measure for the strength of a magnetic field is the Tesla. This is a very large unit of magnetic field.

414

Pacific Northwest National Laboratory Grounds Maintenance  

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

Pacific Pacific Northwest National Laboratory (PNNL) operates an award-winning grounds maintenance program that comprises a comprehensive landscape and irrigation management program. The program has helped the laboratory reduce its water use for irrigation by 30%. PNNL is located in Richland, Washington, and is managed and operated by Battelle for the U.S. Department of Energy (DOE). PNNL scientists and engineers perform research on a variety of subjects, including energy and national security. PNNL has more than 4,200 staff members, sits on 600 acres, and houses 2 million square feet of facilities. The laboratory is located in an arid region of the state, receiving only eight inches of precipitation annually. It has more than 100 acres of turf and landscaped areas and

415

Wide band stepped frequency ground penetrating radar  

DOE Patents [OSTI]

A wide band ground penetrating radar system (10) embodying a method wherein a series of radio frequency signals (60) is produced by a single radio frequency source (16) and provided to a transmit antenna (26) for transmission to a target (54) and reflection therefrom to a receive antenna (28). A phase modulator (18) modulates those portion of the radio frequency signals (62) to be transmitted and the reflected modulated signal (62) is combined in a mixer (34) with the original radio frequency signal (60) to produce a resultant signal (53) which is demodulated to produce a series of direct current voltage signals (66) the envelope of which forms a cosine wave shaped plot (68) which is processed by a Fast Fourier Transform unit 44 into frequency domain data (70) wherein the position of a preponderant frequency is indicative of distance to the target (54) and magnitude is indicative of the signature of the target (54).

Bashforth, Michael B. (Buellton, CA); Gardner, Duane (Santa Maria, CA); Patrick, Douglas (Santa Maria, CA); Lewallen, Tricia A. (Ventura, CA); Nammath, Sharyn R. (Santa Barbara, CA); Painter, Kelly D. (Goleta, CA); Vadnais, Kenneth G. (Alexandria, VA)

1996-01-01T23:59:59.000Z

416

Vegetation uptake from burial ground alpha waste trenches  

SciTech Connect (OSTI)

This study was conducted as part of an evaluation of the potential radiological consequences of reinhabiting the SRS burial ground. The objective was to determine the uptake of buried, low-level, transuranic waste from unlined earthen trenches by forest vegetation. Two tree plots were established in 1979. One plot was put over a trench containing alpha waste and the other in an area without trenches. When the tree seedlings were sampled during 1979 and 1980, and analysized for {sup 239}Pu and {sup 238}Pu, there was only a small difference in radionuclude concentration between trees planted over the trench and those planted on the control plot because of the limited root intrusion into the trench by the seedlings. However, when trees were sample in 1986, 1987, and 1988 and analyzed for {sup 241}Am, {sup 238}Pu, {sup 239}Pu, and {sup 237}Np activity, the average activity of all of these isotopes was significantly higher over the trenches than in the control plot. These measurements indicate that tree roots will extract transuranic isotopes from buried, low-level waste. The amount of radioisotopes moved from the trenches to the surface is small and the level in the trees is low enough that dose from exposure will be small. The long term effects of transport of radioisotopes from the trenches to the surface soil was evaluated by estimating the accumulation in the surface soil. Transuranic activity in selected food crops was calculated using the soil activity and the literature derived concentration factors. In all cases, the activity of the transuranic isotopes in the edible portion of the plants was quite low. The activity in the leaf tissue was much higher than in the seed. However, it should be noted that in only one case was the activity higher than the naturally occurring activity of {sup 40}K in the pine foliage.

Murphy, C.E. Jr.; Tuckfield, R.C.

1989-01-01T23:59:59.000Z

417

Multi-model Estimates of Intercontinental Source-Receptor Relationships for Ozone Pollution  

SciTech Connect (OSTI)

Understanding the surface O{sub 3} response over a 'receptor' region to emission changes over a foreign 'source' region is key to evaluating the potential gains from an international approach to abate ozone (O{sub 3}) pollution. We apply an ensemble of 21 global and hemispheric chemical transport models to estimate the spatial average surface O{sub 3} response over East Asia (EA), Europe (EU), North America (NA) and South Asia (SA) to 20% decreases in anthropogenic emissions of the O{sub 3} precursors, NO{sub x}, NMVOC, and CO (individually and combined), from each of these regions. We find that the ensemble mean surface O{sub 3} concentrations in the base case (year 2001) simulation matches available observations throughout the year over EU but overestimates them by >10 ppb during summer and early fall over the eastern U.S. and Japan. The sum of the O{sub 3} responses to NO{sub x}, CO, and NMVOC decreases separately is approximately equal to that from a simultaneous reduction of all precursors. We define a continental-scale 'import sensitivity' as the ratio of the O{sub 3} response to the 20% reductions in foreign versus 'domestic' (i.e., over the source region itself) emissions. For example, the combined reduction of emissions from the 3 foreign regions produces an ensemble spatial mean decrease of 0.6 ppb over EU (0.4 ppb from NA), less than the 0.8 ppb from the reduction of EU emissions, leading to an import sensitivity ratio of 0.7. The ensemble mean surface O{sub 3} response to foreign emissions is largest in spring and late fall (0.7-0.9 ppb decrease in all regions from the combined precursor reductions in the 3 foreign regions), with import sensitivities ranging from 0.5 to 1.1 (responses to domestic emission reductions are 0.8-1.6 ppb). High O{sub 3} values are much more sensitive to domestic emissions than to foreign emissions, as indicated by lower import sensitivities of 0.2 to 0.3 during July in EA, EU, and NA when O{sub 3} levels are typically highest, and by the weaker relative response of annual incidences of daily maximum 8-hour average O{sub 3} above 60 ppb to emission reductions in a foreign region (<10-20% of that to domestic) as compared to the annual mean response (up to 50% of that to domestic). Applying the ensemble annual mean results to changes in anthropogenic emissions from 1996 to 2002, we estimate a Northern Hemispheric increase in background surface O{sub 3} of about 0.1 ppb yr{sup -1}, at the low end of the 0.1-0.5 ppb yr{sup -1} derived from observations. From an additional simulation in which global atmospheric methane was reduced, we infer that 20% reductions in anthropogenic methane emissions from a foreign source region would yield an O{sub 3} response in a receptor region that roughly equals that produced by combined 20% reductions of anthropogenic NO{sub x}, NMVOC and CO emissions from the foreign source region.

Fiore, A M; Dentener, F J; Wild, O; Cuvelier, C; Schultz, M G; Hess, P; Textor, C; Schulz, M; Doherty, R; Horowitz, L W; MacKenzie, I A; Sanderson, M G; Shindell, D T; Stevenson, D S; Szopa, S; Van Dingenen, R; Zeng, G; Atherton, C; Bergmann, D; Bey, I; Carmichael, G; Collins, W J; Duncan, B N; Faluvegi, G; Folberth, G; Gauss, M; Gong, S; Hauglustaine, D; Holloway, T; Isaksen, I A; Jacob, D J; Jonson, J E; Kaminski, J W; Keating, T J; Lupu, A; Marmer, E; Montanaro, V; Park, R; Pitari, G; Pringle, K J; Pyle, J A; Schroeder, S; Vivanco, M G; Wind, P; Wojcik, G; Wu, S; Zuber, A

2008-10-16T23:59:59.000Z

418

Ground Magnetics At Marysville Mt Area (Blackwell) | Open Energy  

Open Energy Info (EERE)

Ground Magnetics At Marysville Mt Area (Blackwell) Ground Magnetics At Marysville Mt Area (Blackwell) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics At Marysville Mt Area (Blackwell) Exploration Activity Details Location Marysville Mt Area Exploration Technique Ground Magnetics Activity Date Usefulness not useful DOE-funding Unknown Notes A ground magnetic survey located no anomaly with an amplitude of more than 20 or 30 gammas that could be associated with the thermal anomaly, however the magnetic data did outline the Cretaceous stock in great detail and allow the removal from the gravity field of the effect of the stock. References D. D. Blackwell (Unknown) Exploration In A Blind Geothermal Area Near Marysville, Montana, Usa Retrieved from "http://en.openei.org/w/index.php?title=Ground_Magnetics_At_Marysville_Mt_Area_(Blackwell)&oldid=389390"

419

Energy-level scheme and transition probabilities of Si-like ions  

Science Journals Connector (OSTI)

Theoretical energy levels and transition probabilities are presented for 27 low-lying levels of silicon-like ions from Z = 15 to Z = 106. The multiconfiguration Dirac-Fock technique is used to calculate energy levels and wave functions. The Breit interaction and Lamb shift contributions are calculated perturbatively as corrections to the Dirac-Fock energy. The M1 and E2 transitions between the five levels of the ground-state configuration and the E1 transitions between excited and the ground levels are presented.

Keh-Ning Huang

1985-01-01T23:59:59.000Z

420

Does a 5/2+-5/2- ground-state parity doublet exist in ?229  

Science Journals Connector (OSTI)

The 1/2[530] decoupled band in Pa229 has been identified up to the 19/2- level in (p,t) and (p,2n?) experiments. It is found that the 3/2- band head has an excitation energy of 19(10) keV, and can thus not be identified with a 123 keV level observed in the U229 electron capture decay. This removes the evidence presented earlier for a spin-parity assignment of 5/2+-5/2- to a proposed nearly degenerate ground-state doublet in Pa229.

V. Grafen; B. Ackermann; H. Baltzer; T. Bihn; C. Günther; J. deBoer; N. Gollwitzer; G. Graw; R. Hertenberger; H. Kader; A. Levon; A. Lösch

1991-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "ground level ozone" 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

Mid-Level Vision and Recognition of Non-Rigid Objects  

E-Print Network [OSTI]

We address mid-level vision for the recognition of non-rigid objects. We align model and image using frame curves - which are object or "figure/ground" skeletons. Frame curves are computed, without discontinuities, ...

Subirana-Vilanova, J. Brian

1995-04-01T23:59:59.000Z

422

A methodology to evaluate energy savings and NOx emissions reductions from the adoption of the 2000 International Energy Conservation Code (IECC) to new residences in non-attainment and affected counties in Texas  

E-Print Network [OSTI]

Currently, four areas of Texas have been designated by the United States Environmental Protection Agency (EPA) as non-attainment areas because they exceeded the national one-hour ground-level ozone standard of 0.12 parts-per-million (ppm). Ozone...

Im, Piljae

2004-09-30T23:59:59.000Z

423

Bayesian Models for Spatial Extremes Application to inferring high values of  

E-Print Network [OSTI]

Bayesian Models for Spatial Extremes Application to inferring high values of ground-level ozone by the National Science Foundation (NSF) #12;Outline · Background to Ozone Application · Background to Extreme Value Analysis ­ Two approaches: 1. Model all of the data, and look at extremes. 2. Only model

Gilleland, Eric

424

Damage and collapse of double hull tankers in groundings  

SciTech Connect (OSTI)

This paper will discuss and analyze the mechanics of ships in groundings on rock. A damage estimate model in grounding of ships is proposed. The accuracy and applicability of the model are verified by a comparison of experimental results. The progressive collapse analysis of damaged hull sections, under vertical bending moments by use of the ALPS/ISUM computer code, is described. The procedure is applied to grounding simulation of a double hull tanker with transverseless system.

Paik, J.K.; Lee, T.K. [Pusan National Univ. (Korea, Republic of). Dept. of Naval Architecture and Ocean Engineering

1995-12-31T23:59:59.000Z

425

Cleanup Verification Package for the 618-8 Burial Ground  

SciTech Connect (OSTI)

This cleanup verification package documents completion of remedial action for the 618-8 Burial Ground, also referred to as the Solid Waste Burial Ground No. 8, 318-8, and the Early Solid Waste Burial Ground. During its period of operation, the 618-8 site is speculated to have been used to bury uranium-contaminated waste derived from fuel manufacturing, and construction debris from the remodeling of the 313 Building.

M. J. Appel

2006-08-10T23:59:59.000Z

426

Sun--Grounding Social Sciences in Cognitive Sciences I Introduction  

E-Print Network [OSTI]

G Sun--Grounding Social Sciences in Cognitive Sciences I Introduction Sun_8928_001_main.indd 1 1/10/2012 6:35:15 PM #12;G Sun--Grounding Social Sciences in Cognitive Sciences Sun_8928_001_main.indd 2 1/10/2012 6:35:15 PM #12;G Sun--Grounding Social Sciences in Cognitive Sciences 1 Prolegomenato

Sun, Ron

427

Ozone-Initiated Secondary Emission Rates of Aldehydes from Indoor Surfaces in Four Homes  

Science Journals Connector (OSTI)

Ozone-Initiated Secondary Emission Rates of Aldehydes from Indoor Surfaces in Four Homes ... For example, the nonanal SER from the living room carpet was 80 ?g m-2 h-1 in a 1 year old home, but only 8?20 ?g m-2 h-1 in two homes that were greater than 10 years old. ... Living room carpets in homes H1 and H2 also emitted 2-nonenal, denoted 9‘ in Figure 2. SERs of individual aldehydes ranged from less than the method detection limits (MDL), for most aldehydes emitted from walls, to 208 ?g m-2 h-1 for nonanal emitted from kitchen countertop in home H2. ...

Hong Wang; Glenn C. Morrison

2006-07-22T23:59:59.000Z

428

Highly reproducible and reliable metal/graphene contact by ultraviolet-ozone treatment  

SciTech Connect (OSTI)

Resist residue from the device fabrication process is a significant source of contamination at the metal/graphene contact interface. Ultraviolet Ozone (UVO) treatment is proven here, by X-ray photoelectron spectroscopy and Raman measurement, to be an effective way of cleaning the metal/graphene interface. Electrical measurements of devices that were fabricated by using UVO treatment of the metal/graphene contact region show that stable and reproducible low resistance metal/graphene contacts are obtained and the electrical properties of the graphene channel remain unaffected.

Li, Wei [Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871 (China); Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899 (United States); Hacker, Christina A.; Cheng, Guangjun; Hight Walker, A. R.; Richter, Curt A.; Gundlach, David J., E-mail: david.gundlach@nist.gov, E-mail: liangxl@pku.edu.cn [Physical Measurement Laboratory, National Institute of Standards and Technology, Gaithersburg, MD 20899 (United States); Liang, Yiran; Tian, Boyuan; Liang, Xuelei, E-mail: david.gundlach@nist.gov, E-mail: liangxl@pku.edu.cn; Peng, Lianmao [Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871 (China)

2014-03-21T23:59:59.000Z

429

Methods of minimizing ground-water contamination from in situ leach uranium mining. Final report  

SciTech Connect (OSTI)

This is the final report of a research project designed to study methods of minimizing ground-water contamination from in situ leach uranium mining. Fieldwork and laboratory experiments were conducted to identify excursion indicators for monitoring purposes during mining, and to evaluate effective aquifer restoration techniques following mining. Many of the solution constituents were found to be too reactive with the aquifer sediments to reliably indicate excursion of leaching solution from the ore zone; however, in many cases, the concentrations of chloride and sulfate and the total dissolved solids level of the solution were found to be good excursion indicators. Aquifer restoration by ground-water sweeping consumed large quantities of ground water and was not effective for the redox-sensitive contaminants often present in the ore zone. Surface treatment methods such as reverse osmosis and electrodialysis were effective in reducing the amount of water used, but also had the potential for creating conditions in the aquifer under which the redox-sensitive contaminants would be mobile. In situ restoration by chemical reduction, in which a reducing agent is added to the solution recirculated through the ore zone during restoration, can restore the ore-zone sediment as well as the ground water. This method could lead to a stable chemical condition in the aquifer similar to conditions before mining. 41 figures.

Deutsch, W.J.; Martin, W.J.; Eary, L.E.; Serne, R.J.

1985-03-01T23:59:59.000Z

430

Lossless anomalous dispersion and an inversionless gain doublet via dressed interacting ground states  

SciTech Connect (OSTI)

Transparent media exhibiting anomalous dispersion have been of considerable interest since Wang, Kuzmich, and Dogariu [Nature 406, 277 (2000)] first observed light propagate with superluminal and negative group velocities without absorption. Here, we propose an atomic model exhibiting these properties, based on a generalization of amplification without inversion in a five-level dressed interacting ground-state system. The system consists of a {Lambda} atom prepared as in standard electromagnetically induced transparency (EIT), with two additional metastable ground states coupled to the {Lambda} atom ground states by two rf-microwave fields. We consider two configurations by which population is incoherently pumped into the ground states of the atom. Under appropriate circumstances, we predict a pair of new gain lines with tunable width, separation, and height. Between these lines, absorption vanishes but dispersion is large and anomalous. The system described here is a significant improvement over other proposals in the anomalous dispersion literature in that it permits additional coherent control over the spectral properties of the anomalous region, including a possible 10{sup 4}-fold increase over the group delay observed by Wang, Kuzmich, and Dogariu.

Weatherall, James Owen [Department of Physics and Engineering Physics, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030 (United States); Department of Mathematical Sciences, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030 (United States); Department of Logic and Philosophy of Science, University of California Irvine, 3151 Social Science Plaza A, Irvine, California 92697 (United States); Search, Christopher P. [Department of Physics and Engineering Physics, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030 (United States)

2010-02-15T23:59:59.000Z

431

Ground Gravity Survey At Dixie Valley Geothermal Area (Schaefer...  

Open Energy Info (EERE)

Area (Schaefer, 1983) Exploration Activity Details Location Dixie Valley Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1983 - 1983 Usefulness...

432

5-MW Dynamometer Ground Breaking | Department of Energy  

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

Energy Laboratory in Golden, Colorado, broke ground for a new 5-MW dynamometer test facility. When complete, the new facility will more than double the wind turbine...

433

Española entrepreneur breaks ground; expansion will create 50...  

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

Espaola entrepreneur breaks ground; expansion will create 50 new jobs Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:...

434

Cleanup Verification Package for the 118-F-1 Burial Ground  

SciTech Connect (OSTI)

This cleanup verification package documents completion of remedial action for the 118-F-1 Burial Ground on the Hanford Site. This burial ground is a combination of two locations formerly called Minor Construction Burial Ground No. 2 and Solid Waste Burial Ground No. 2. This waste site received radioactive equipment and other miscellaneous waste from 105-F Reactor operations, including dummy elements and irradiated process tubing; gun barrel tips, steel sleeves, and metal chips removed from the reactor; filter boxes containing reactor graphite chips; and miscellaneous construction solid waste.

E. J. Farris and H. M. Sulloway

2008-01-10T23:59:59.000Z

435

Posters Preliminary Analysis of Ground-Based Microwave and Infrared...  

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

3 Posters Preliminary Analysis of Ground-Based Microwave and Infrared Radiance Observations During the Pilot Radiation OBservation Experiment E. R. Westwater, Y. Han, J. H....

436

Hybrid Ground Source System Analysis and Tool Development  

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

Development Principal Investigator Scott Hackel, Energy Center of Wisconsin Ground Source Heat Pumps Demonstration Projects May 18, 2010 This presentation does not contain any...

437

Building America Case Study: Ground Source Heat Pump Research...  

Energy Savers [EERE]

a home during design and carefully sizing expensive systems such as ground source heat pumps (GSHPs) will result in a closer correlation between modeled and actual energy...

438

EVALUATION AND OPTIMIZATION RESEARCH OF GROUND SOURCE HEAT PUMP.  

E-Print Network [OSTI]

??Nowadays energy efficiency and environmental protection have got particular attention. After the sustainable development theory had been put forward decades ago. Ground source heat pump… (more)

Zhou, Taian

2011-01-01T23:59:59.000Z

439

Trimming of a ground source heat pump system in Saltsjöbaden.  

E-Print Network [OSTI]

?? The real performance of ground source heat pumps systems are not precisely highlighted in most cases, especially when it comes to installations older than… (more)

Garnier, Michel

2014-01-01T23:59:59.000Z

440

Monitoring SERC Technologies —Geothermal/Ground Source Heat Pumps  

Broader source: Energy.gov [DOE]

A webinar by National Renewable Energy Laboratory Project Leader Dave Peterson about Geothermal/Ground Source Heat Pumps and how to properly monitor its installation.

Note: This page contains sample records for the topic "ground level ozone" 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

LANL breaks ground on key sediment control project  

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

Sediment control project LANL breaks ground on key sediment control project Called "grade-control" structures, the approximately 2 million features are up to eight feet high and...

442

BURNING GROUND RD CDV-SMA-2.3  

E-Print Network [OSTI]

GROUND BUNKER 430 ANCHORRANCH V-SITE 260 332 RESTHOUSE 410 360 PLASTICS Cañon de Valle S-Site Canyon Fish

443

Ground Gravity Survey At Long Valley Caldera Geothermal Area...  

Open Energy Info (EERE)

Battaglia, Et Al., 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Long Valley Caldera Geothermal Area (Battaglia,...

444

Ground Gravity Survey At Under Steamboat Springs Area (Warpinski...  

Open Energy Info (EERE)

Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Under Steamboat Springs Area (Warpinski,...

445

Ground Magnetics At Cove Fort Area - Vapor (Warpinski, Et Al...  

Open Energy Info (EERE)

Vapor (Warpinski, Et Al., 2004) Exploration Activity Details Location Cove Fort Geothermal Area Exploration Technique Ground Magnetics Activity Date Usefulness useful DOE-funding...

446

Ground Gravity Survey At Cove Fort Area - Vapor (Warpinski, Et...  

Open Energy Info (EERE)

Vapor (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Cove Fort Area - Vapor (Warpinski, Et...

447

Hanford Site environmental data for calendar year 1990 -- Ground water  

SciTech Connect (OSTI)

This report tabulates ground-water radiological and chemical data for calendar year 1990 by the Ground-Water Surveillance Project, reported Resource Conservation and Recovery Act (RCRA) Monitoring, and Operational Monitoring. The Ground-Water Surveillance Project is conducted by the Pacific Northwest Laboratory and the RCRA and Operational Monitoring Projects are conducted by the Westinghouse Hanford Company. This document supplements the reports Hanford Site Ground-Water Monitoring for 1990 (Evans et al. 1992) and mental Report for Calendar Year 1990 (Woodruff and Hanf 1991). The data listings provided here were generated from the Hanford Environmental Information System database.

Dresel, P.E.; Bates, D.J.; Merz, J.K.

1993-03-01T23:59:59.000Z

448

Ground Water Management District Rules | Open Energy Information  

Open Energy Info (EERE)

District Rules Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Ground Water Management District Rules Abstract This webpage provides information...

449

Optical Communication System for Remote Monitoring and Adaptive Control of Distributed Ground Sensors Exhibiting Collective Intelligence  

SciTech Connect (OSTI)

Comprehensive management of the battle-space has created new requirements in information management, communication, and interoperability as they effect surveillance and situational awareness. The objective of this proposal is to expand intelligent controls theory to produce a uniquely powerful implementation of distributed ground-based measurement incorporating both local collective behavior, and interoperative global optimization for sensor fusion and mission oversight. By using a layered hierarchal control architecture to orchestrate adaptive reconfiguration of autonomous robotic agents, we can improve overall robustness and functionality in dynamic tactical environments without information bottlenecks. In this concept, each sensor is equipped with a miniaturized optical reflectance modulator which is interactively monitored as a remote transponder using a covert laser communication protocol from a remote mothership or operative. Robot data-sharing at the ground level can be leveraged with global evaluation criteria, including terrain overlays and remote imaging data. Information sharing and distributed intelli- gence opens up a new class of remote-sensing applications in which small single-function autono- mous observers at the local level can collectively optimize and measure large scale ground-level signals. AS the need for coverage and the number of agents grows to improve spatial resolution, cooperative behavior orchestrated by a global situational awareness umbrella will be an essential ingredient to offset increasing bandwidth requirements within the net. A system of the type described in this proposal will be capable of sensitively detecting, tracking, and mapping spatial distributions of measurement signatures which are non-stationary or obscured by clutter and inter- fering obstacles by virtue of adaptive reconfiguration. This methodology could be used, for example, to field an adaptive ground-penetrating radar for detection of underground structures in urban environments and to detect chemical species concentrations in migrating plumes. Given is our research in these areas and a status report of our progress.

Cameron, S.M.; Stantz, K.M.; Trahan, M.W.; Wagner, J.S.

1998-11-01T23:59:59.000Z

450

Ground beef shelf life assessment as influenced by sodium lactate, sodium propionate, sodium diacetate, and soy protein concentrate  

E-Print Network [OSTI]

In phase I all-beef and soy-added ground beef patties containing sodium lactate, sodium propionate, and sodium diacetate at various levels and combinations were stored for nine months at -10°C. Upon cooking, the addition of sodium lactate increased...

Grones, Kelly Leann

2012-06-07T23:59:59.000Z

451

Abstract--With the rapid expansion of satellite communication, an increasing number of unattended ground terminals are  

E-Print Network [OSTI]

the analysis over real-world data collected. Index Terms--Terminal Fault Identification, Wavelet Analysis I the satisfactory of customers. As the transmission intermediate between satellite and end users, ground terminals local customers. Since the satellite transmission power is maintained at optimum level and the links

Huang, Changcheng

452

Asteroseismology with the WIRE satellite. I. Combining Ground- and Space-based Photometry of the Delta Scuti Star Epsilon Cephei  

E-Print Network [OSTI]

We have analysed ground-based multi-colour Stromgren photometry and single-filter photometry from the star tracker on the WIRE satellite of the delta scuti star Epsilon Cephei. The ground-based data set consists of 16 nights of data collected over 164 days, while the satellite data are nearly continuous coverage of the star during 14 days. The spectral window and noise level of the satellite data are superior to the ground-based data and this data set is used to locate the frequencies. However, we can use the ground-based data to improve the accuracy of the frequencies due to the much longer time baseline. We detect 26 oscillation frequencies in the WIRE data set, but only some of these can be seen clearly in the ground-based data. We have used the multi-colour ground-based photometry to determine amplitude and phase differences in the Stromgren b-y colour and the y filter in an attempt to identify the radial degree of the oscillation frequencies. We conclude that the accuracies of the amplitudes and phases a...

Bruntt, H; Bedding, T R; Buzasi, D L; Moya, A; Amado, P J; Martin-Ruiz, S; Garrido, R; De Coca, P L; Rolland, A; Costa, V; Olivares, I; Garcia-Pelayo, J M

2006-01-01T23:59:59.000Z

453

On Nuclear Energy Levels  

Science Journals Connector (OSTI)

...research-article On Nuclear Energy Levels K. M. Guggenheimer The formula for the energy levels of the rigid rotator...nuclei. Two kinds of nuclear rotation are discussed...an A relation for the energy levels of different nuclei...

1942-01-01T23:59:59.000Z

454

SEGMENTATION OF VERTEBRAE USING LEVEL SETS WITH EXPECTATION MAXIMIZATION ALGORITHM  

E-Print Network [OSTI]

Processing Lab., Louisville, KY, 40299, USA 2 Image Analysis, Inc., 1380 Burkesville St., Columbia, KY, 42728, USA ABSTRACT In this paper, we propose a robust level sets method to seg- ment vertebral bodies (VBs (EM) algorithm for the initialization and pa- rameter estimation. Validity was analyzed using ground

Louisville, University of

455

Ozone Abundance in a Nitrogen-Carbon Dioxide Dominated Terrestrial Paleoatmosphere  

E-Print Network [OSTI]

We compute the ozone distribution for a model terrestrial paleoatmosphere in which the present oxygen abundance is largely replaced by carbon dioxide, which we argue is a reasonable working assumption. In principle, the presence of carbon dioxide might supplement the ozone shield as compared with models based on nitrogen without high carbon dioxide abundance so that early life need not have been as UV-resistant as often assumed. An extrasolar planet with a high-CO2 atmosphere might contain enough O3 to be a source of false positive biomarkers. We find that the globally averaged O3 column density can be the same, or nearly four times higher (depending upon the O2 partial pressure) when CO2 is used in place of N2 as the replacement component for lowered O2 in a 1-atm terrestrial planet with solar radiation. The effect is important for making quantitative deductions from future data, but does not invalidate the use of O3 as a biomarker for free oxygen. These results make prospects for detection of extrasolar planetary O3 absorption somewhat better than before.

B. C. Thomas; A. L. Melott; L. D. Martin; C. H. Jackman

2004-10-22T23:59:59.000Z

456

Ozone Abundance in a Nitrogen-Carbon Dioxide Dominated Terrestrial Paleoatmosphere  

E-Print Network [OSTI]

We compute the ozone distribution for a model terrestrial paleoatmosphere in which the present oxygen abundance is largely replaced by carbon dioxide, which we argue is a reasonable working assumption. In principle, the presence of carbon dioxide might supplement the ozone shield as compared with models based on nitrogen without high carbon dioxide abundance so that early life need not have been as UV-resistant as often assumed. An extrasolar planet with a high-CO2 atmosphere might contain enough O3 to be a source of false positive biomarkers. We find that the globally averaged O3 column density can be the same, or nearly four times higher (depending upon the O2 partial pressure) when CO2 is used in place of N2 as the replacement component for lowered O2 in a 1-atm terrestrial planet with solar radiation. The effect is important for making quantitative deductions from future data, but does not invalidate the use of O3 as a biomarker for free oxygen. These results make prospects for detection of extrasolar pla...

Thomas, B C; Martin, L D; Jackman, C H

2004-01-01T23:59:59.000Z

457

Step-coverage simulation for tetraethoxysilane and ozone atmospheric pressure chemical vapor deposition  

SciTech Connect (OSTI)

A simulation model for atmospheric pressure (AP) CVD has bee developed using one-dimensional diffusion and mass conservation equations. The model was applied to trench step-coverage of the tetraethoxysilane (TEOS) and O[sub 3] CVD, in which it was not necessary to consider lateral diffusion because of narrow (and deep) trenches. For nondoped silicate glass (NSG), the step-coverage of a 4.5 aspect ratio trench showed a good fit if a sticking probability of 0.0039 was assumed for the 0.6% ozone (in oxygen) deposition and of 0.0026 for the 6% ozone deposition (both 400 C). The reaction rate constant was compared with the diffusion mass-transfer coefficient, and the reaction proved to be limited by diffusion of the reactant, TEOS, which directly participated in the CVD reaction. For the 2 m/o phosphosilicate glass (PSG) step-coverage, which had a slight overhang, the model matched the obtained results well only when an active growth species with a high sticking probability of 1.0 was added to the growth species of nondoped oxide. This analytical simulation method satisfactorily explains the experimental data.

Fujino, K. (Semiconductor Process Lab., Toyko (Japan)); Egashira, Y.; Shimogaki, Y.; Komiyama, H. (Univ. of Tokyo, (Japan). Dept. of Chemical Engineering)

1993-08-01T23:59:59.000Z

458

Introduction Application of numerical models of ground water flow  

E-Print Network [OSTI]

(Portniaguine and Solomon 1998), and ground water temperature (Doussan et al. 1994). Compared to calibration depended on calibration methodology; models calibrated with multiple targets simulated q more accurately of Calibration Methodology on Ground Water Flow Predictions by James E. Saiers1, David P. Genereux2, and Carl H

Saiers, James

459

A ROUGHENING TRANSITION INDICATED BY THE BEHAVIOUR OF GROUND STATES  

E-Print Network [OSTI]

A ROUGHENING TRANSITION INDICATED BY THE BEHAVIOUR OF GROUND STATES R. Koteck´y and S. Miracle of classical lattice models, one may meet some interesting and non-trivial structures. Keywords: Roughening for the stability of rigid ground states has been conjectured hal-00706981,version1-11Jun2012 #12;Roughening

Paris-Sud XI, Université de

460

Ground-Source Heat Pumps in Cold Climates  

E-Print Network [OSTI]

Ground-Source Heat Pumps in Cold Climates The Current State of the Alaska Industry, a Review-Source Heat Pumps in Cold Climates The Current State of the Alaska Industry, a Review of the Literature and contributions from individuals and organizations involved in ground-source heat pump installation around Alaska

Wagner, Diane

Note: This page contains sample records for the topic "ground level ozone" 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

Ground-Coupled Heat Pump Applications and Case Studies  

E-Print Network [OSTI]

to a similar bank building with air-conditioning and gas for heat revealed a 22 percent reduction in utility costs for the ground-coupled building. In a retrofit application of ground-coupled heat pumps to replace air-conditioning and electric heal...

Braud, H. J.

1989-01-01T23:59:59.000Z

462

Elastic Properties of Jet-Grouted Ground and Applications  

E-Print Network [OSTI]

consists in using injection pressures of the same order of magnitude as in hydro-fracturing. The ground heave resulting from the increase of pore pressure in the cracks is expected to compensate the settlements occurring in the cracked ground. Compaction...-2-4 Compensation Grouting ................................................................................ 9 2-2-5 Compaction Grouting.................................................................................... 9 2-2-6 Permeation Grouting...

Juge, Benjamin

2012-07-16T23:59:59.000Z

463

Description of ground motion data processing codes: Volume 3  

SciTech Connect (OSTI)

Data processing codes developed to process ground motion at the Nevada Test Site for the Weapons Test Seismic Investigations Project are used today as part of the program to process ground motion records for the Nevada Nuclear Waste Storage Investigations Project. The work contained in this report documents and lists codes and verifies the ``PSRV`` code. 39 figs.

Sanders, M.L.

1988-02-01T23:59:59.000Z

464

Integrated Water Management Options in the Nebraska Ground Water Management &  

E-Print Network [OSTI]

Integrated Water Management Options in the Nebraska Ground Water Management & Protection Act by J of the Nebraska Ground Water Management & Protection Act (GMPA) 2. the special GMPA integrated water management a correlative rights framework, and 5. what additional water management tools are needed to effectively deal

Nebraska-Lincoln, University of

465

Possible Ground-State Octupole Deformation in Pa229  

Science Journals Connector (OSTI)

Evidence is presented for the occurrence of a 52± parity doublet as the ground state of Pa229, in agreement with a previous theoretical prediction. The doublet splitting energy is measured to be 0.22±0.05 keV. The relation of this doublet to ground-state octupole deformation is discussed.

I. Ahmad; J. E. Gindler; R. R. Betts; R. R. Chasman; A. M. Friedman

1982-12-13T23:59:59.000Z

466

Water resources data for Florida, water year 1992. Volume 1B. Northeast Florida ground water. Water-data report (Annual) October 1, 1991-September 30, 1992  

SciTech Connect (OSTI)

Water resources data for the 1992 for northeast Florida include continuous or daily discharge for 140 streams, periodic discharge for 10 streams, miscellaneous discharge for 14 streams, continuous or daily stage for 32 streams, continuous or daily tide stage for 3 sites, periodic stage for 23 streams, peak discharge for 3 streams, and peak stage for 11 streams; continuous or daily elevations for 36 lakes, periodic elevations for 47 lakes; continuous ground-water levels for 75 wells, periodic ground-water levels for 123 wells, and miscellaneous water-level measurements for 864 wells; and quality-of-water data for 38 surface-water sites and 66 wells.

Not Available

1993-01-01T23:59:59.000Z

467

Ground-truth aerosol lidar observations: can the Klett solutions obtained from ground and space be equal for the same aerosol case?  

Science Journals Connector (OSTI)

Upcoming multiyear satellite lidar aerosol observations need strong support by a worldwide ground-truth lidar network. In this context the question arises as to whether the ground...

Ansmann, Albert

2006-01-01T23:59:59.000Z

468

Ground Magnetics At Alum Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Ground Magnetics At Alum Area (DOE GTP) Ground Magnetics At Alum Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Magnetics At Alum Geothermal Area (DOE GTP) Exploration Activity Details Location Alum Geothermal Area Exploration Technique Ground Magnetics Activity Date Usefulness not indicated DOE-funding Unknown References (1 January 2011) GTP ARRA Spreadsheet Retrieved from "http://en.openei.org/w/index.php?title=Ground_Magnetics_At_Alum_Area_(DOE_GTP)&oldid=402978" Categories: Exploration Activities DOE Funded Activities ARRA Funded Activities What links here Related changes Special pages Printable version Permanent link Browse properties About us Disclaimers Energy blogs Linked Data Developer services OpenEI partners with a broad range of international organizations to grow

469

Building Energy Software Tools Directory: Ground Loop Design  

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

Ground Loop Design Ground Loop Design Ground Loop Design logo Ground Loop Design is a versatile ground source heat pump system design program that helps the trained geothermal HVAC designer/engineer size equipment, determine the correct lengths of bore or pipe required for commercial projects, optimize the piping configuration for balanced flow and optimal heat transfer, and calculate the annual and lifetime energy/operating/emissions costs associated with the design. The modular program enhances design productivity and permits flexibility in the designing process and customization based on designer preferences. It also has an English/metric conversion engine and is available in many languages, providing applicability to the widest range of equipment and customers. Screen Shots

470

An ecological study examining the correlation of end-stage renal disease and ground water heavy metal content in Texas counties  

E-Print Network [OSTI]

An ecological study was conducted to examine the correlation of end-stage renal disease (ESRD) and the ground water heavy metal level of lead, arsenic, cadmium, mercury and the cumulative level of all four metals in Texas counties. The heavy meal...

Bishop, Scott Alan

2012-06-07T23:59:59.000Z

471

Chemical Composition of Gas-Phase Organic Carbon Emissions from Motor Vehicles and Implications for Ozone Production  

E-Print Network [OSTI]

gasoline and diesel vehicles via two methods. First we use speciated measurements of exhaust emissions from and comprise 32 ± 2% of gasoline exhaust and 26 ± 1% of diesel exhaust by mass. We calculate and compare ozone production potentials of diesel exhaust, gasoline exhaust, and nontailpipe gasoline emissions. Per mass

Cohen, Ronald C.

472

Substrate Utilization by an Oxalate-Consuming Spirillum Species in Relation to Its Growth in Ozonated Water  

Science Journals Connector (OSTI)

...assimilable organic car- bon compounds (AOC), were calculated from the obtained Nmax values and the Y values for acetate. The AOC concen- trations for both strains were...with each oth- er. In ozonated water, AOC concentrations available for strain NOX...

D. van der Kooij; W. A. M. Hijnen

1984-03-01T23:59:59.000Z

473

Ozone injury on cutleaf coneflower (Rudbeckia laciniata) and crown-beard (Verbesina occidentalis) in Great Smoky Mountains  

E-Print Network [OSTI]

upon Tyne NE1 7RU, UK d Resource Management and Science Division, 1314 Cherokee Orchard Road, Great and 2001: Clingmans Dome, Cherokee Orchard Road and Purchase Knob. Cutleaf coneflower exhibited a greater adjacent to the Cherokee Orchard Road Loop. Ozone injury was greatest on the lower leaves for both species

Neufeld, Howard S.

474

SOLA, 2008, Vol. 4, 117 120, doi:10.2151/sola.2008 030 We analyzed tropospheric column ozone (TCO)  

E-Print Network [OSTI]

SOLA, 2008, Vol. 4, 117 120, doi:10.2151/sola.2008 030 Abstract We analyzed tropospheric column the energy budget of the Earth's atmosphere. According to a recent IPCC report (2007), radiative forcing, recent increases in energy consumption have led to a significant amount of emissions of ozone precursors

Chance, Kelly

475

A post-Kyoto partner: Considering the stratospheric ozone regime as a tool to manage nitrous oxide  

Science Journals Connector (OSTI)

...There is a balance between ozone production...because the mass of N 2 O...such as wastewater, are developing...such as wastewater treatment and aquaculture...coal power plants) emit N...how to balance funding...nitric acid plants in the United...

David Kanter; Denise L. Mauzerall; A. R. Ravishankara; John S. Daniel; Robert W. Portmann; Peter M. Grabiel; William R. Moomaw; James N. Galloway

2013-01-01T23:59:59.000Z

476

The effect of marine isoprene emissions on secondary organic aerosol and ozone formation in the coastal United States  

E-Print Network [OSTI]

The effect of marine isoprene emissions on secondary organic aerosol and ozone formation) in the coastal areas of the continental United States is studied using the U.S. Environmental Protection Agency regional-scale Community Multiscale Air Quality (CMAQ) modeling system. Marine isoprene emission rates

Zhang, Yang

477

Ground-source Heat Pumps Applied to Commercial Buildings  

SciTech Connect (OSTI)

Ground-source heat pumps can provide an energy-efficient, cost-effective way to heat and cool commercial facilities. While ground-source heat pumps are well established in the residential sector, their application in larger, commercial-style, facilities is lagging, in part because of a lack of experience with the technology by those in decision-making positions. Through the use of a ground-coupling system, a conventional water-source heat pump design is transformed to a unique means of utilizing thermodynamic properties of earth and groundwater for efficient operation throughout the year in most climates. In essence, the ground (or groundwater) serves as a heat source during winter operation and a heat sink for summer cooling. Many varieties in design are available, so the technology can be adapted to almost any site. Ground-source heat pump systems can be used widely in commercial-building applications and, with proper installation, offer great potential for the commercial sector, where increased efficiency and reduced heating and cooling costs are important. Ground-source heat pump systems require less refrigerant than conventional air-source heat pumps or air-conditioning systems, with the exception of direct-expansion-type ground-source heat pump systems. This chapter provides information and procedures that an energy manager can use to evaluate most ground-source heat pump applications. Ground-source heat pump operation, system types, design variations, energy savings, and other benefits are explained. Guidelines are provided for appropriate application and installation. Two case studies are presented to give the reader a sense of the actual costs and energy savings. A list of manufacturers and references for further reading are included for prospective users who have specific or highly technical questions not fully addressed in this chapter. Sample case spreadsheets are provided in Appendix A. Additional appendixes provide other information on the ground-source heat pump technology.

Parker, Steven A.; Hadley, Donald L.

2009-07-14T23:59:59.000Z

478

Ground-Source Heat Pumps Applied to Commercial Buildings  

SciTech Connect (OSTI)

Ground-source heat pumps can provide an energy-efficient, cost-effective way to heat and cool commercial facilities. While ground-source heat pumps are well established in the residential sector, their application in larger, commercial-style, facilities is lagging, in part because of a lack of experience with the technology by those in decision-making positions. Through the use of a ground-coupling system, a conventional water-source heat pump design is transformed to a unique means of utilizing thermodynamic properties of earth and groundwater for efficient operation throughout the year in most climates. In essence, the ground (or groundwater) serves as a heat source during winter operation and a heat sink for summer cooling. Many varieties in design are available, so the technology can be adapted to almost any site. Ground-source heat pump systems can be used widely in commercial-building applications and, with proper installation, offer great potential for the commercial sector, where increased efficiency and reduced heating and cooling costs are important. Ground-source heat pump systems require less refrigerant than conventional air-source heat pumps or air-conditioning systems, with the exception of direct-expansion-type ground-source heat pump systems. This chapter provides information and procedures that an energy manager can use to evaluate most ground-source heat pump applications. Ground-source heat pump operation, system types, design variations, energy savings, and other benefits are explained. Guidelines are provided for appropriate application and installation. Two case studies are presented to give the reader a sense of the actual costs and energy savings. A list of manufacturers and references for further reading are included for prospective users who have specific or highly technical questions not fully addressed in this chapter. Sample case spreadsheets are provided in Appendix A. Additional appendixes provide other information on the ground-source heat pump technology.

Parker, Steven A.; Hadley, Donald L.

2006-12-31T23:59:59.000Z

479

Social survey of the annoyance of low?frequency aircraft ground noise  

Science Journals Connector (OSTI)

Concerns about the appropriateness of representing low?frequency aircraft ground and near?ground noise in A?weighted units and about the adequacy of standard interpretive criteria for assessing community response to low?frequency noises are becoming more common at large civil airports. Residents of a neighborhood adjacent to a busy runway were interviewed to determine the annoyance of runway sideline noise at frequencies below 100 Hz and of its audible manifestations inside homes. Extensive measurements were made to estimate low?frequency noise contours in the interviewing area and street addresses of respondents were geo?coded to permit assignment of low?frequency noise levels to each household. Residents who were highly annoyed by low?frequency sideline noise were concentrated in areas with maximum sound levels summed in one?third octave bands between 25 and 80 Hz (inclusive) that were in excess of 75–80 dB. These levels are consistent with Hubbard’s (1980) estimates of low?frequency airborne sound levels capable of inducing secondary emissions in light architectural elements of residences.

S. Fidell; L. Silvati; S. Lind; K. Pearsons

1999-01-01T23:59:59.000Z

480

Atlas SCT/Pixel Grounding and Shielding Note 1 ATLAS SCT/Pixel Grounding and Shielding Note  

E-Print Network [OSTI]

Atlas SCT/Pixel Grounding and Shielding Note 1 ATLAS SCT/Pixel Grounding and Shielding Note for SCT. This proposal mostly connects existing mechanical and electrical conductive #12;Atlas SCT. The barrel outer heat shield (150 µm aluminum) is the main element of the shield. #12;Atlas SCT

California at Santa Cruz, University of

Note: This page contains sample records for the topic "ground level ozone" 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

Hydrocarbon emissions from industrial release events in the Houston-Galveston area and their impact on ozone formation  

Science Journals Connector (OSTI)

Ambient measurements have shown that ozone formation in the Houston-Galveston area of Texas is frequently much more rapid than in other urban areas. One of the contributing factors is believed to be short-term episodic or “event” emissions from industrial facilities, particularly releases that contain significant mass fractions of highly reactive volatile organic compounds (HRVOCs). In this work, time series analyses are used to compare average annual flow rates for air pollutant emissions with those released during reported emission events. The results indicate that the magnitude and frequency of HRVOC event emissions are an important element in accurately reflecting ozone precursor emission patterns in the Houston-Galveston area, particularly in Harris, Brazoria, Galveston, and Chambers counties. More than 50% of the reported episodic (event) emissions of \\{HRVOCs\\} are ethene and approximately a third are propene; the remainders are isomers of butene and 1,3-butadiene. Most events last less than 24 h. The mass released in an event can vary from a few hundred to more than 100,000 lb, and the dominant type of industrial source is chemical manufacturers (SIC 2869). Daily emissions from a single facility can vary from annual average emissions by multiple orders of magnitude at a frequency of several times a year. Because there are so many facilities in the Houston-Galveston area, HRVOC emission variability of this magnitude can be expected daily, at some time and some location in the Houston-Galveston area. If the emission variability occurs at times and locations where atmospheric conditions are conducive to ozone formation, both ambient data and photochemical modeling indicate that industrial emission events can lead to elevated concentrations of ozone. Specifically, peak, area-wide ozone concentration can be increased by as much as 100 ppb for large HRVOC emission events.

Cynthia Folsom Murphy; David T. Allen

2005-01-01T23:59:59.000Z

482

Ground-water contribution to dose from past Hanford Operations  

SciTech Connect (OSTI)

The Hanford Environmental Dose Reconstruction (HEDR) Project is being conducted to estimate radiation doses that populations and individuals could have received from Hanford Site operations from 1944 to the present. Four possible pathways by which radionuclides migrating in ground water on the Hanford Site could have reached the public have been identified: (1) through contaminated ground water migrating to the Columbia River; (2) through wells on or adjacent to the Hanford Site; (3) through wells next to the Columbia River downstream of Hanford that draw some or all of their water from the river (riparian wells); and (4) through atmospheric deposition resulting in contamination of a small watershed that, in turn, results in contamination of a shallow well or spring by transport in the ground water. These four pathways make up the ground-water pathway,'' which is the subject of this study. Assessment of the ground-water pathway was performed by (1) reviewing the existing extensive literature on ground water and ground-water monitoring at Hanford and (2) performing calculations to estimate radionuclide concentrations where no monitoring data were collected. Radiation doses that would result from exposure to these radionuclides were calculated.

Freshley, M.D.; Thorne, P.D.

1992-08-01T23:59:59.000Z

483

Department of Veterans Affairs, FONSI - Ground mounted solar photovoltaic  

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

Ground mounted solar Ground mounted solar photovoltaic power at San Joaquin National Cemetery Department of Veterans Affairs, FONSI - Ground mounted solar photovoltaic power at San Joaquin National Cemetery An Environmental Assessment (EA) has been prepared under the direction of an interdisciplinary team analyzing theproposed construction of a Photovoltaic System at the San Joaquin National Cemetery (SNC) in San Joaquin,Calofornia. CX rulemaking files More Documents & Publications Department of Veterans Affairs, FONSI - Rooftop solar PV power at Calverton National Cemetery Department of Energy Technical Support Document National Environmental Policy Act Implementing Procedures Supplement to Notice of Proposed Rulemaking Proposed Changes and Supplemental Supporting Basis

484

Ground Water Protection (North Dakota) | Department of Energy  

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

Ground Water Protection (North Dakota) Ground Water Protection (North Dakota) Ground Water Protection (North Dakota) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Program Info State North Dakota Program Type Siting and Permitting North Dakota has a degradation prevention program for groundwater protection, with standards established by the Department of Health. This section addresses groundwater standards, quality monitoring, notification

485

GROUND-WATER CONTRIBUTION TO DOSE FROM PAST HANFORD OPERATIONS  

SciTech Connect (OSTI)

The Hanford Environmental Dose Reconstruction (HEOR) Project is being conducted to estimate radiation doses that populations and individuals could have received from Hanford Site operations from 1944 to the present. Four possible pathways by which radionuclides originating in ground water on the Hanford Site could have reached the public have been identified: 1) through contaminated ground water migrating to the Columbia River; 2) through wells on or adjacent to the Hanford Site; 3) through wells that draw some or all of their water from the Columbia River (riparian wells); and 4) through atmospheric deposition resulting in the contamination of a small watershed that, in turn, results in contamination of a shallow well or spring. These four pathways make up the "ground-water pathway ," which is the subject of this study. The objective of the study was to assess the extent to which the groundwater pathway contributed to radiation doses that populations or individuals may have received from past operations at Hanford. The assessment presented in this report was performed by 1) reviewing the extensive ?literature on ground water and ground-water monitoring at Hanford and 2) performing simple calculations to estimate radionuclide concentrations in ground water and the Columbia River resulting from ground-water discharge. Radiation doses that would result from exposure to this ground water and surface water were calculated. The study conclusion is that the ground-water pathways did not contribute significantly to dose. Compared with background radiation in the TriCities {300 mrem/yr), estimated doses are small: 0.02 mrem/yr effective dose equivalent from discharge of contaminated ground water to the Columbia River; 1 mrem/yr effective dose equivalent from Hanford Site wells; 11 mrem/yr effective dose equivalent from riparian wells; and 1 mrem/yr effective dose equivalent from the watershed. Because the estimated doses are so small, the recommendation is that further work on the ground-water pathway be limited to tracking ongoing ground-water studies at the Hanford Site.

Freshley, M. D.; Thorne, P. D.

1992-01-01T23:59:59.000Z

486

Levelized Electricity Costs  

Science Journals Connector (OSTI)

The concept of levelized energy costs responds to the necessity of disclosing the ... in order to recover the total life cycle cost of energy production. This chapter charts the effectiveness of levelized cost fo...

Nuno Luis Madureira

2014-01-01T23:59:59.000Z

487

The Enterprise Level Roadmap  

E-Print Network [OSTI]

The Enterprise Level Roadmap is part of a Transition-To-Lean Guide, a three volume set of materials designed to help a user navigate through the Roadmap at increasingly deeper levels of detail.

Lean Advancement Initiative

2000-01-01T23:59:59.000Z

488

Energy Levels of Lu174  

Science Journals Connector (OSTI)

Thirty-two levels in Lu174 have been observed up to an excitation energy of 1628 keV utilizing 12-MeV deuterons and the reaction Lu175(d, t)Lu174. The ground-state Q value was determined to be -1400±15 keV. The spectrum has been interpreted in terms of the coupling of the [404?] Nilsson proton orbital with the neutron orbitals prominent in the (d, t) spectrum of Yb173. This interpretation has resulted in the determination of relative energies due to the residual neutron-proton interaction for seven different configurations. The observed singlet-triplet splitting energies for the [512?], [521?], and [521?] neutron orbitals coupled to the [404?] proton orbital were measured to be -110, +80, and -90 keV, respectively. Theoretical calculations of these energies made for a zero-range spin-dependent central potential gave values of -106, +71, and -77 keV, respectively. The remarkable agreement indicates that the spin-spin interaction can account for most, if not all, of the singlet-triplet splitting energy.

H. D. Jones and R. K. Sheline

1970-06-01T23:59:59.000Z

489

Scaling and estimation of earthquake ground motion as a function of the earthquake source parameters and distance  

SciTech Connect (OSTI)

In this report we review the various methodologies currently available to predict the near-source ground motion from an earthquake. The limitations of the various approaches are discussed in light of recently developed theory and recorded data. To overcome some of the limitations of available approaches, we develop improved rules for scaling between earthquakes. Ground-motion data obtained from salvo (line source) explosions are also investigated to gain insight into the appropriate form for the attenuation of peak acceleration and peak velocity. The scaling laws are combined with the appropriate attenuation relations and the data from the 1971 San Fernando and 1940 Imperial Valley earthquakes to obtain relations among the key source parameters: dynamic stress drop and equivalent radius of the highly stressed region, distance from the center of energy release, and peak ground acceleration and velocity. These relations are verified by comparing the predicted levels of ground motion to those actually recorded from a number of earthquakes, including the recent 1979 Imperial Valley and Coyote Lake earthquakes. The relations among earthquake magnitude, earthquake source parameters, and peak ground motion are discussed. 83 refs., 37 figs., 9 tabs.

Bernreuter, D.L.

1981-04-01T23:59:59.000Z

490

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 95, NO. D10, PAGES 16,529-16,543, SEPTEMBER 20, 1990 Evolution of the Total Ozone Field During the Breakdown  

E-Print Network [OSTI]

reactions occurring on the surface of ice crystalsin polar stratosphericclouds(PSCs) [Farman et al., 1985 before the appearance of the ozone hole [Dobson, 1966;Farman et al., 1985];but beginningin about 1975,the

491

Relative Contribution of Greenhouse Gases and Ozone-Depleting Substances to Temperature Trends in the Stratosphere: A Chemistry–Climate Model Study  

Science Journals Connector (OSTI)

The temperature of the stratosphere has decreased over the past several decades. Two causes contribute to that decrease: well-mixed greenhouse gases (GHGs) and ozone-depleting substances (ODSs). This paper addresses the attribution of temperature ...

Richard S. Stolarski; Anne R. Douglass; Paul A. Newman; Steven Pawson; Mark R. Schoeberl

2010-01-01T23:59:59.000Z

492

Double Jeopardy: Both Overexpression and Suppression of a Redox-Activated Plant Mitogen-Activated Protein Kinase Render Tobacco Plants Ozone Sensitive  

Science Journals Connector (OSTI)

...such as UV light, ozone, and ionizing radiation. Against this background, ROS...amplification was within the linear range. As an internal control, 18S...Neuronal apoptosis resulting from high doses of the isoflavone genistein: Role...

Marcus A. Samuel; Brian E. Ellis

2002-08-23T23:59:59.000Z

493

Liquid level detector  

DOE Patents [OSTI]

A liquid level detector for low pressure boilers. A boiler tank, from which apor, such as steam, normally exits via a main vent, is provided with a vertical side tube connected to the tank at the desired low liquid level. When the liquid level falls to the level of the side tube vapor escapes therethrough causing heating of a temperature sensitive device located in the side tube, which, for example, may activate a liquid supply means for adding liquid to the boiler tank. High liquid level in the boiler tank blocks entry of vapor into the side tube, allowing the temperature sensitive device to cool, for example, to ambient temperature.

Grasso, Albert P. (Vernon, CT)

1986-01-01T23:59:59.000Z

494

Liquid level detector  

DOE Patents [OSTI]

A liquid level detector for low pressure boilers. A boiler tank, from which vapor, such as steam, normally exits via a main vent, is provided with a vertical side tube connected to the tank at the desired low liquid level. When the liquid level falls to the level of the side tube vapor escapes therethrough causing heating of a temperature sensitive device located in the side tube, which, for example, may activate a liquid supply means for adding liquid to the boiler tank. High liquid level in the boiler tank blocks entry of vapor into the side tube, allowing the temperature sensitive device to cool, for example, to ambient temperature.

Grasso, A.P.

1984-02-21T23:59:59.000Z

495

Ground magnetic survey in the Coso Range, California | Open Energy  

Open Energy Info (EERE)

Ground magnetic survey in the Coso Range, California Ground magnetic survey in the Coso Range, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Ground magnetic survey in the Coso Range, California Details Activities (1) Areas (1) Regions (0) Abstract: A ground magnetic study was completed in the Coso volcanic field to investigate faulting and associated hydrothermal alteration patterns. The magnetic intensity contours match general geologic patterns in varying rock types. Hydrothermally altered rocks along intersecting fault zones show up as strong magnetic lows that form a triangular-shaped area. This area is centered in an area of highest heat flow and is a site of concentrated fumarolic activity. In the Coso volcanic field the combination of high heat flow, fumarolic activity, magnetic lows, and hydrothermal

496

SB Electronics Breaks Ground on New Factory | Department of Energy  

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

SB Electronics Breaks Ground on New Factory SB Electronics Breaks Ground on New Factory SB Electronics Breaks Ground on New Factory April 29, 2010 - 5:22pm Addthis U.S. Rep. Peter Welch (from left), Vermont Lt. Gov. Brian Dubie, SBE board member Win Hunter, SBE board chair Stan Fishkin, Assi U.S. Rep. Peter Welch (from left), Vermont Lt. Gov. Brian Dubie, SBE board member Win Hunter, SBE board chair Stan Fishkin, Assi Paul Lester Communications Specialist, Office of Energy Efficiency and Renewable Energy A Vermont company broke ground on a new factory that will produce cutting-edge technology for electric and hybrid cars and create more than 100 jobs. The event ushering in SB Electronics' power ring capacitor facility in Barre was attended by Vermont Gov. Jim Douglas and federal, state and local

497

Pantex breaks ground on renewable energy project | National Nuclear  

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

breaks ground on renewable energy project | National Nuclear breaks ground on renewable energy project | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Pantex breaks ground on renewable energy project Pantex breaks ground on renewable energy project Posted By Office of Public Affairs Today was a rare windless day on the plains of the Texas Panhandle, but

498

Breaking Ground in Miami-Dade | Department of Energy  

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

Breaking Ground in Miami-Dade Breaking Ground in Miami-Dade Breaking Ground in Miami-Dade October 15, 2010 - 4:28pm Addthis Existing Miami-Dade county water treatment facility. Existing Miami-Dade county water treatment facility. Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs Officials from Miami-Dade County and the U.S. Department of Energy were on hand Wednesday, October 13th to formally break ground on an innovative project that will help improve the energy efficiency of one of the county's major water treatment facilities. The project will upgrade and expand the existing power generation system at the water plant which generates electricity from digester gas produced at the plant. Landfill gas, which is produced from the Solid Waste Department's South Dade Landfill, will be collected and piped across a

499

Pantex breaks ground on renewable energy project | National Nuclear  

National Nuclear Security Administration (NNSA)

breaks ground on renewable energy project | National Nuclear breaks ground on renewable energy project | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Pantex breaks ground on renewable energy project Pantex breaks ground on renewable energy project Posted By Office of Public Affairs Today was a rare windless day on the plains of the Texas Panhandle, but

500

Digging Begins at Hazardous Hanford Burial Ground - River Corridor  

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

Digging Begins at Hazardous Hanford Burial Ground - River Corridor Digging Begins at Hazardous Hanford Burial Ground - River Corridor Contractor Spent Two Years Preparing to Remediate 618-10 Digging Begins at Hazardous Hanford Burial Ground - River Corridor Contractor Spent Two Years Preparing to Remediate 618-10 August 3, 2011 - 12:00pm Addthis Media Contacts Cameron Hardy, DOE Cameron.Hardy@rl.doe.gov 509-376-5365 Todd Nelson, Washington Closure media@wch-rcc.com 509-372-9097 RICHLAND, WASH. - After careful preparation and characterization, the Department of Energy's (DOE) River Corridor contractor, Washington Closure Hanford, has begun remediation of one of the most hazardous burial grounds tackled to date on the Hanford Site's River Corridor. The $57 million American Recovery and Reinvestment Act project began with nearly two years of preparation and characterization before reaching their