Powered by Deep Web Technologies
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

Ground-level ozone in the 21st century: future trends,  

E-Print Network [OSTI]

Ground-level ozone in the 21st century: future trends, impacts and policy implications October 2008 Price £39 web royalsociety.org Science Policy REPORT 15/08 #12;Cover image: Sunrise over the River Ganges in Varanasi, India showing a sunny and polluted sky, characteristic of photochemical smog

3

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

4

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"

5

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...

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

E-Print Network 3.0 - analyzing ground ozone Sample Search Results  

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

are analyzed... to superposition of the "natural" pro- cesses. Comparison of the total ozone ... Source: Ecole Polytechnique, Centre de mathmatiques Collection:...

11

THE IMPACT OF OZONE ON THE LOWER FLAMMABLE LIMIT OF HYDROGEN IN VESSELS CONTAINING SAVANNAH RIVER SITE HIGH LEVEL WASTE  

SciTech Connect (OSTI)

The Savannah River Site, in conjunction with AREVA Federal services, has designed a process to treat dissolved radioactive waste solids with ozone. It is known that in this radioactive waste process, radionuclides radiolytically break down water into gaseous hydrogen and oxygen, which presents a well defined flammability hazard. Flammability limits have been established for both ozone and hydrogen separately; however, there is little information on mixtures of hydrogen and ozone. Therefore, testing was designed to provide critical flammability information necessary to support safety related considerations for the development of ozone treatment and potential scale-up to the commercial level. Since information was lacking on flammability issues at low levels of hydrogen and ozone, a testing program was developed to focus on filling this portion of the information gap. A 2-L vessel was used to conduct flammability tests at atmospheric pressure and temperature using a fuse wire ignition source at 1 percent ozone intervals spanning from no ozone to the Lower Flammable Limit (LFL) of ozone in the vessel, determined as 8.4%(v/v) ozone. An ozone generator and ozone detector were used to generate and measure the ozone concentration within the vessel in situ, since ozone decomposes rapidly on standing. The lower flammability limit of hydrogen in an ozone-oxygen mixture was found to decrease from the LFL of hydrogen in air, determined as 4.2 % (v/v) in this vessel. From the results of this testing, Savannah River was able to develop safety procedures and operating parameters to effectively minimize the formation of a flammable atmosphere.

Sherburne, Carol [Savannah River Site (SRS), Aiken, SC (United States). Savannah River Remediation, LLC; Osterberg, Paul [Fauske and Associates, LLC, Burr Ridge, IL (United States); Johnson, Tom [Fauske and Associates, LLC, Burr Ridge, IL (United States); Frawely, Thomas [Fauske and Associates, LLC, Burr Ridge, IL (United States)

2013-01-23T23:59:59.000Z

12

Dispersion modeling of ground-level area sources of particulate  

E-Print Network [OSTI]

into the concentration predictions, in order to account for variation or wind speed and direction within an hour period. For ground-level sources, the vertical distribution involves mathematically dispersing the pollutant underground, then reflecting it back up. The next...

Fritz, Bradley Keith

2012-06-07T23:59:59.000Z

13

Low-Level Burial Grounds Waste Analysis Plan  

SciTech Connect (OSTI)

The purpose of this waste analysis plan (WAP) is to document the waste acceptance process, sampling methodologies, analytical techniques, and overall processes that are undertaken for waste accepted for storage and/or disposal at the Low-Level Burial Grounds which are located in the 200 East and West Areas of the Hanford Facility, Richland, Washington. This WAP documents the methods used to characterize, obtain and analyze representative samples of waste managed at this unit.

ELLEFSON, M.D.

2000-03-02T23:59:59.000Z

14

Geologic setting of the low-level burial grounds  

SciTech Connect (OSTI)

This report describes the regional and site specific geology of the Hanford Sites low-level burial grounds in the 200 East and West Areas. The report incorporates data from boreholes across the entire 200 Areas, integrating the geology of this area into a single framework. Geologic cross-sections, isopach maps, and structure contour maps of all major geological units from the top of the Columbia River Basalt Group to the surface are included. The physical properties and characteristics of the major suprabasalt sedimentary units also are discussed.

Lindsey, K.A.; Jaeger, G.K. [CH2M Hill Hanford, Inc., Richland, WA (United States); Slate, J.L. [Associated Western Universities Northwest, Richland, WA (United States); Swett, K.J.; Mercer, R.B. [Westinghouse Hanford Co., Richland, WA (United States)

1994-10-13T23:59:59.000Z

15

Detection of 6 November 1997 Ground Level Event by Milagrito  

E-Print Network [OSTI]

Solar Energetic Particles from the 6 November 1997 solar flare/CME(coronal mass ejection) with energies exceeding 10 GeV have been detected by Milagrito, a prototype of the Milagro Gamma Ray Observatory. While particle acceleration beyond 1 GeV at the Sun is well established, few data exist for protons or ions beyond 10 GeV. The Milagro observatory, a ground based water Cherenkov detector designed for observing very high energy gamma ray sources, can also be used to study the Sun. Milagrito, which operated for approximately one year in 1997/98, was sensitive to solar proton and neutron fluxes above ~5- 10 GeV. Milagrito operated in a scaler mode, which was primarily sensitive to muons, low energy photons, and electrons, and the detector operated in a mode sensitive to showers and high zenith angle muons. In its scaler mode, Milagrito registered a rate increase coincident with the 6 November 1997 ground level event observed by Climax and other neutron monitors. A preliminary analysis suggests the presence of >...

Atkins, R; Berley, D; Chen, M L; Coyne, D G; Delay, R S; Dingus, B L; Dorfan, D E; Ellsworth, R W; Evans, D; Falcone, A D; Fleysher, L; Fleysher, R; Gisler, G; Goodman, J A; Haines, T J; Hoffman, C M; Hugenberger, S; Kelley, L A; Leonor, I; Macri, J R; McConnell, M; McCullough, J F; McEnery, J E; Miller, R S; Mincer, A I; Morales, M F; Némethy, P; Ryan, J M; Schneider, M; Shen, B; Shoup, A L; Sinnis, G; Smith, A J; Sullivan, G W; Thompson, T N; Tümer, T O; Wang, K; Wascko, M O; Westerhoff, S; Williams, D A; Yang, T; Yodh, G B

1999-01-01T23:59:59.000Z

16

Detection of 6 November 1997 Ground Level Event by Milagrito  

E-Print Network [OSTI]

Solar Energetic Particles from the 6 November 1997 solar flare/CME(coronal mass ejection) with energies exceeding 10 GeV have been detected by Milagrito, a prototype of the Milagro Gamma Ray Observatory. While particle acceleration beyond 1 GeV at the Sun is well established, few data exist for protons or ions beyond 10 GeV. The Milagro observatory, a ground based water Cherenkov detector designed for observing very high energy gamma ray sources, can also be used to study the Sun. Milagrito, which operated for approximately one year in 1997/98, was sensitive to solar proton and neutron fluxes above ~5- 10 GeV. Milagrito operated in a scaler mode, which was primarily sensitive to muons, low energy photons, and electrons, and the detector operated in a mode sensitive to showers and high zenith angle muons. In its scaler mode, Milagrito registered a rate increase coincident with the 6 November 1997 ground level event observed by Climax and other neutron monitors. A preliminary analysis suggests the presence of >10 GeV particles.

R. Atkins; W. Benbow; D. Berley; M. -L. Chen; D. G. Coyne; R. S. Delay; B. L. Dingus; D. E. Dorfan; R. W. Ellsworth; D. Evans; A. Falcone; L. Fleysher; R. Fleysher; G. Gisler; J. A. Goodman; T. J. Haines; C. M. Hoffman; S. Hugenberger; L. A. Kelley; I. Leonor; J. Macri; M. McConnell; J. F. McCullough; J. E. McEnery; R. S. Miller; A. I. Mincer; M. F. Morales; P. Nemethy; J. M. Ryan; M. Schneider; B. Shen; A. Shoup; G. Sinnis; A. J. Smith; G. W. Sullivan; T. N. Thompson; O. T. Tumer; K. Wang; M. O. Wascko; S. Westerhoff; D. A. Williams; T. Yang; G. B. Yodh

1999-06-24T23:59:59.000Z

17

Closure Plan for Active Low Level Burial Grounds  

SciTech Connect (OSTI)

This plan has been prepared in response to direction from the U.S. Department of Energy. The purpose of the plan is to define approaches that will be implemented to ensure protection of the public and the environment when active Low-Level Burial Grounds (LLBGs) at the Hanford Site are closed. Performance assessments for active burial grounds in the 200 East and West 200 Areas provide current estimates of potential environmental contamination and doses to the ''maximum exposed individual'' from burial ground operation and closure and compare dose estimates to performance objective dose limits for the facilities. This is an Operational Closure Plan. The intent of the guidance in DOE Order 435.1 is that this plan will be a living document, like the facility performance assessments, and will be revised periodically through the operational life of the LLBGs to reflect updated information on waste inventory. management practices, facility transition planning, schedule dates, assessments of post-closure performance, and environmental consequences. Out year dates identified in this plan are tentative. A Final Closure Plan will be prepared in the future when the timing and extent of closure-related activities for LLBGs can be established with greater certainty. After current operations at the LLBGs are concluded, this plan proposes transitioning of these facilities to the Environmental Restoration Program. This action will enable the Environmental Restoration Program to design and implement consistent and coordinated final remedial actions for active and inactive LLBGs. Active and inactive burial grounds in the 200 West and 200 East Areas are commingled. This plan describes approaches that will be implemented during Interim Closure, Final Closure, and Institutional Control Periods to prepare LLBGs for surface barriers, and the construction of barriers, as well as the scope of inspection, monitoring and maintenance practices that will be performed during and after closure. Environmental monitoring is briefly discussed in this plan. However, a more comprehensive discussion of monitoring issues is provided in a separate performance assessment monitoring plan for LLBGs. Supporting information is provided regarding the geography, climate, hydrogeology, geochemistry and land-use practices of adjacent land areas.

SKELLY, W.A.

2000-11-16T23:59:59.000Z

18

Estimating GroundEstimating Ground--Level Solar RadiationLevel Solar Radiation and Evapotranspiration In Puerto Ricoand Evapotranspiration In Puerto Rico  

E-Print Network [OSTI]

Estimating GroundEstimating Ground--Level Solar RadiationLevel Solar Radiation radiation, therefore, solar radiation measurements throughout the island are essential. #12;Currently, including solar radiation ·In PR, solar radiation is only available at selected locations. · The majority

Gilbes, Fernando

19

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

20

Technology, Safety and Costs of Decommissioning a Reference Low-Level Waste Burial Ground. Appendices  

SciTech Connect (OSTI)

Safety and cost information are developed for the conceptual decommissioning of commercial low-level waste (LLW) burial grounds. Two generic burial grounds, one located on an arid western site and the other located on a humid eastern site, are used as reference facilities for the study. The two burial grounds are assumed to have the same site capacity for waste, the same radioactive waste inventory, and similar trench characteristics and operating procedures. The climate, geology. and hydrology of the two sites are chosen to be typical of real western and eastern sites. Volume 2 (Appendices) contains the detailed analyses and data needed to support the results given in Volume 1.

None

1980-06-01T23:59:59.000Z

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.


21

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

22

Geologic Descriptions for the Solid-Waste Low Level Burial Grounds  

SciTech Connect (OSTI)

This document provides the stratigraphic framework and six hydrogeologic cross sections and interpretations for the solid-waste Low Level Burial Grounds on the Hanford Site. Four of the new cross sections are located in the 200 West Area while the other two are located within the 200 East Area. The cross sections display sediments of the vadose zone and uppermost unconfined aquifer.

Bjornstad, Bruce N.; Lanigan, David C.

2007-09-23T23:59:59.000Z

23

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

24

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

25

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

26

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

27

Hydrostatic Level Sensors as High Precision Ground Motion Instrumentation for Tevatron and Other Energy Frontier Accelerators  

SciTech Connect (OSTI)

Particle accelerators require very tight tolerances on the alignment and stability of their elements: magnets, accelerating cavities, vacuum chambers, etc. In this article we describe the Hydrostatic Level Sensors (HLS) for very low frequency measurements used in a variety of facilities at Fermilab. We present design features of the sensors, outline their technical parameters, describe their test and calibration procedures, discuss different regimes of operation and give few illustrative examples of the experimental data. Detail experimental results of the ground motion measurements with these detectors will be presented in subsequent papers.

Volk, James; Hansen, Sten; Johnson, Todd; Jostlein, Hans; Kiper, Terry; Shiltsev, Vladimir; Chupyra, Andrei; Kondaurov, Mikhail; Medvedko, Anatoly; Parkhomchuk, Vasily; Singatulin, Shavkat

2012-01-01T23:59:59.000Z

28

web page: http://w3.pppl.gov/~ zakharov At the ground level of integrated modeling1  

E-Print Network [OSTI]

web page: http://w3.pppl.gov/~ zakharov At the ground level of integrated modeling1 Leonid E-independent environment and integrating them with its capabilities (e.g., java). (f) . . . of other integrations (WEB of D

Zakharov, Leonid E.

29

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

Broader source: Energy.gov [DOE]

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...

30

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

31

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

SciTech Connect (OSTI)

As directed by the U.S. Department of Energy (DOE), Richland Operations Office (DOE-RL), Fluor Hanford, Inc. will implement the requirements of DOE Order 435.1, Radioactive Waste Management, as the requirements relate to the continued operation of the low-level waste disposal facilities on the Hanford Site. DOE Order 435.1 requires a disposal authorization statement authorizing operation (or continued operation) of a low-level waste disposal facility. The objective of this Order is to ensure that all DOE radioactive waste is managed in a manner that protects the environment and personnel and public health and safety. The manual (DOE Order 435.1 Manual) implementing the Order states that a disposal authorization statement shall be issued based on a review of the facility's performance assessment and composite analysis or appropriate Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) of 1980 documentation. The disposal authorization shall specify the limits and conditions on construction, design, operations, and closure of the low-level waste facility. Failure to obtain a disposal authorization statement shall result in shutdown of an operational disposal facility. In fulfillment of the requirements of DOE Order 435.1, 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 and the 200 West Area Low-Level Burial Grounds. The disposal authorization statement constitutes approval of the performance assessment and composite analysis, authorizes operation of the facility, and includes conditions that the disposal facility must meet. 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 DOE-RL. The monitoring plan is to be updated and implemented within 1 year following issuance of the disposal authorization statement to incorporate and implement conditions specified in the statement. The plan must meet the following criteria. The site-specific performance assessment and composite analysis shall be used to determine the media, locations, radionuclides, and other substances monitored. The environmental monitoring program shall be designed to include measuring and evaluating releases, migration of radionuclides, disposal unit subsidence, and changes in disposal facility and disposal site parameters that may affect long-term performance. The environmental monitoring programs shall be capable of detecting changing trends in performance to allow application of any necessary corrective action before exceeding the performance objectives stated in the order.

SONNICHSEN, J.C.

2000-11-15T23:59:59.000Z

32

A study of ozone in the surface layer of Kiev and its impact on the human health  

E-Print Network [OSTI]

Ground-level ozone in Kiev for an episode of its high concentration in August 2000 was simulated with the model of the urban air pollution UAM-V (Urban Airshed Model). The study of total ozone over Kiev and its concentration changes with height in the troposphere is made on the basis of ground-based observations with the infrared Fourier spectrometer at the Main Astronomical Observatory of National Academy of Sciences of Ukraine as a part of the ESA-NIVR-KNMI no 2907. In 2008 the satellite Aura-OMI data OMO3PR on the atmosphere ozone profiles became available. Beginning in 2005, these data include the ozone concentration in the lower layer of the atmosphere and can be used for the evaluation of the ground-level ozone concentrations in all cities of Ukraine. Some statistical investigation of ozone air pollution in Kiev and medical statistics data on respiratory system was carried out with the application of the "Statistica" package. The regression analysis, prognostic regression simulation, and retrospective p...

Shavrina, A V; Kiforenko, S I; Sheminova, V A; Veles, A A; Blum, O B

2012-01-01T23:59:59.000Z

33

Absence of Energy Level Crossing for the Ground State Energy of the Rabi Model  

E-Print Network [OSTI]

The Hamiltonian of the Rabi model is considered. It is shown that the ground state energy of the Rabi Hamiltonian is simple for all values of the coupling strength, which implies the ground state energy does not cross other energy

Masao Hirokawa; Fumio Hiroshima

2012-07-17T23:59:59.000Z

34

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

Broader source: Energy.gov [DOE]

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...

35

Impact of the Vertical Mixing Induced by Low-level Jets on Boundary Layer Ozone4 Concentration5  

E-Print Network [OSTI]

to the ground, while the upper24 region of the daytime mixed layer becomes the residual layer (RL). Mixing40 chemical reactions and dry deposition, which resulted in lower O3 peak values on the next day.41 layer (SBL) near45 the surface that is typically quite shallow. Above the SBL is a residual layer (RL

Xue, Ming

36

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

37

Detection of 6 November 1997 Ground Level Event by for Milagro collaboration  

E-Print Network [OSTI]

collaboration 1 Space Science Center, University of New Hampshire, Durham, NH 03824 USA Abstract Solar Energetic Particles from the 6 November 1997 solar flare/CME(coronal mass ejection) with energies exceeding 10 GeV. The Milagro observatory, a ground based water Cherenkov detector designed for observing very high energy gamma

California at Santa Cruz, University of

38

Excitations of {sup 1}P levels of zinc by electron impact on the ground state  

SciTech Connect (OSTI)

We present results of a joint theoretical and experimental investigation of electron scattering from the 4s{sup 2} {sup 1}S ground state of zinc. The 4s4p {sup 1}P{sup o} and 4s5p {sup 1}P{sup o} differential cross sections were measured at scattering angles between 10 degree sign and 150 degree sign and electron-energies of 15, 20, 25, 40, and 60 eV. Corresponding convergent close-coupling calculations have been performed and are compared with experiment.

Fursa, Dmitry V.; Bray, Igor [Centre for Atomic, Molecular and Surface Physics, Murdoch University, Perth 6150 (Australia); Panajotovic, R.; Sevic, D.; Pejcev, V.; Marinkovic, B.P. [Institute of Physics, Belgrade, P.O. Box 68, 11080 Belgrade (Serbia and Montenegro); Filipovic, D.M. [Institute of Physics, Belgrade, P.O. Box 68, 11080 Belgrade (Serbia and Montenegro); Faculty of Physics, University of Belgrade, 11001 Belgrade (Serbia and Montenegro)

2005-07-15T23:59:59.000Z

39

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

40

A Farm-Level Evaluation of Agricultural Profit and Ground Water Quality: Texas Seymour Aquifer  

E-Print Network [OSTI]

The Seymour Aquifer of north-central Texas is known to have elevated levels of nitrates. The design of economically sound policies for reducing agriculture's nitrate contribution to the aquifer suggests a need to evaluate alternative management...

Chowdhury, Manzoor; Lacewell, Ronald D.; McCarl, Bruce A.; Ozuna, Teofilo Jr.; Benson, Verel W.; Harris, Billy L.; Dyke, Paul T.

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

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

E-Print Network [OSTI]

......................................................................................................................... 95 x LIST OF FIGURES Page Figure 1. Schematic of the Flocchini box model.............................................................. 7 Figure 2. Layout of test plots... in Table 1. EFs developed using the two modeling methods were found not to be statistically different for all the four species at the 95% confidence level. No difference was observed even in the standard deviation values of the EFs developed using...

Botlaguduru, Venkata Sai V.

2010-07-14T23:59:59.000Z

43

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

44

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...

45

THE EFFECT OF THE PRESENCE OF OZONE ON THE LOWER FLAMMABILITY LIMIT OF HYDROGEN IN VESSELS CONTAINING SAVANNAH RIVER SITE HIGH LEVEL WASTE  

SciTech Connect (OSTI)

The Enhanced Chemical Cleaning (ECC) process uses ozone to effect the oxidation of metal oxalates produced during the dissolution of sludge in the Savannah River Site (SRS) waste tanks. The ozone reacts with the metal oxalates to form metal oxide and hydroxide precipitants, and the CO{sub 2}, O{sub 2}, H{sub 2}O and any unreacted O{sub 3} gases are discharged into the vapor space. In addition to the non-radioactive metals in the waste, however, the SRS radioactive waste also contains a variety of radionuclides, hence, hydrogen gas is also present in the vapor space of the ECC system. Because hydrogen is flammable, the impact of this resultant gas stream on the Lower Flammability Limit (LFL) of hydrogen must be understood for all possible operating scenarios of both normal and off-normal situations, with particular emphasis at the elevated temperatures and pressures of the typical ECC operating conditions. Oxygen is a known accelerant in combustion reactions, but while there are data associated with the behavior of hydrogen/oxygen environments, recent, relevant studies addressing the effect of ozone on the flammability limit of hydrogen proved scarce. Further, discussions with industry experts verified the absence of data in this area and indicated that laboratory testing, specific to defined operating parameters, was needed to comprehensively address the issue. Testing was thus designed and commissioned to provide the data necessary to support safety related considerations for the ECC process. A test matrix was developed to envelope the bounding conditions considered credible during ECC processing. Each test consists of combining a gas stream of high purity hydrogen with a gas stream comprised of a specified mixture of ozone and oxygen in a temperature and pressure regulated chamber such that the relative compositions of the two streams are controlled. The gases are then stirred to obtain a homogeneous mixture and ignition attempted by applying 10J of energy to a fuse wire. A gas combination is considered flammable when a pressure rise of 7% of the initial absolute pressure is observed. The specified testing methodology is consistent with guidelines established in ASTM E-918-83 (2005) 'Standard Practices for Determining Limits of Flammability of Chemicals at Elevated Temperature and Pressure'.

Sherburne, C.

2012-01-12T23:59:59.000Z

46

Pinatubo fails to deepen the ozone hole  

SciTech Connect (OSTI)

When the Philippine volcano Pinatubo exploded last year, pumping the upper atmosphere full of find debris, researchers foresaw yet another assault on the stratosphere's beleaguered ozone layer. Some calculations of the effects of volcanic debris implied that as much as 25% to 30% of the ozone shield over temperature latitudes might be eaten away by the volcanic haze - five times the observed loss over the past decade. Early measurements didn't bear out that concern, but researchers weren't prepared to call off the alarm until the verdict came in from the most vulnerable part of the planet's ozone layer, the frigid stratosphere over Antarctica. Although the hole was more extensive than ever before, probably because of unusual weather patterns, total ozone bottomed out well above the record set last year - even a tad above the low levels seen in 1987, 1989, and 1990.

Kerr, R.A.

1992-10-15T23:59:59.000Z

47

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

48

Cros S., Wald L., 2003. Survey of the main databases providing solar radiation data at ground level. In Proceedings of the 23rd EARSeL Annual Symposium "Remote Sensing in Transition", 2-4 June 2003, Ghent,  

E-Print Network [OSTI]

Cros S., Wald L., 2003. Survey of the main databases providing solar radiation data at ground level providing solar radiation data at the ground level S. Cros & L. Wald Remote Sensing and Modeling Group, Ecole des Mines de Paris, France Keywords: solar radiation, database, information system, climatology

Paris-Sud XI, Université de

49

Electrosorption on carbon aerogel electrodes as a means of treating low-level radioactive wastes and remediating contaminated ground water  

SciTech Connect (OSTI)

A novel separation process based upon carbon aerogel electrodes has been recently developed for the efficient removal of ionic impurities from aqueous streams. This process can be used as an electrical y- regenerated alternative to ion exchange, thereby reducing-the need for large quantities of chemical regenerants. Once spent (contaminated), these regenerants contribute to the waste that must be disposed of in landfills. The elimination of such wastes is especially beneficial in situations involving radioactive contaminants, and pump and treat processing of massive volumes of ground water. A review and analysis of potential applications will be presented.

Tran, Tri Duc; Farmer, Joseph C.; DePruneda, Jean H.; Richardson, Jeffery H.

1997-07-01T23:59:59.000Z

50

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

51

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

52

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

53

Exposure-Relevant Ozone Chemistry in Occupied Spaces  

SciTech Connect (OSTI)

Ozone, an ambient pollutant, is transformed into other airborne pollutants in the indoor environment. In this dissertation, the type and amount of byproducts that result from ozone reactions with common indoor surfaces, surface residues, and vapors were determined, pollutant concentrations were related to occupant exposure, and frameworks were developed to predict byproduct concentrations under various indoor conditions. In Chapter 2, an analysis is presented of secondary organic aerosol formation from the reaction of ozone with gas-phase, terpene-containing consumer products in small chamber experiments under conditions relevant for residential and commercial buildings. The full particle size distribution was continuously monitored, and ultrafine and fine particle concentrations were in the range of 10 to>300 mu g m-3. Particle nucleation and growth dynamics were characterized.Chapter 3 presents an investigation of ozone reactions with aircraft cabin surfaces including carpet, seat fabric, plastics, and laundered and worn clothing fabric. Small chamber experiments were used to determine ozone deposition velocities, ozone reaction probabilities, byproduct emission rates, and byproduct yields for each surface category. The most commonly detected byproducts included C1?C10 saturated aldehydes and skin oil oxidation products. For all materials, emission rates were higher with ozone than without. Experimental results were used to predict byproduct exposure in the cabin and compare to other environments. Byproduct levels are predicted to be similar to ozone levels in the cabin, which have been found to be tens to low hundreds of ppb in the absence of an ozone converter. In Chapter 4, a model is presented that predicts ozone uptake by and byproduct emission from residual chemicals on surfaces. The effects of input parameters (residue surface concentration, ozone concentration, reactivity of the residue and the surface, near-surface airflow conditions, and byproduct yield) were explored. In Chapter 5, the reaction of ozone with permethrin, a residual insecticide used in aircraft cabins, to form phosgene is investigated. A derivatization technique was developed to detect phosgene at low levels, and chamber experiments were conducted with permethrin-coated cabin materials. It was determined that phosgene formation, if it occurs in the aircraft cabin, is not likely to exceed the relevant, health-based phosgene exposure guidelines.

Coleman, Beverly Kaye

2009-04-01T23:59:59.000Z

54

Recommendations to the NRC for review criteria for alternative methods of low-level radioactive waste disposal: Task 2a, Below-ground vaults  

SciTech Connect (OSTI)

The US Army Engineer Waterways Experiment Station (WES) and the US Army Engineer Division, Huntsville (HNDED) have developed general design criteria and specific design review criteria for the below-ground vault (BGV) alternative method of low-level radioactive waste (LLW) disposal. A BGV is a reinforced concrete vault (floor, walls, and roof) placed underground below the frost line, and above the water table, surrounded by filter blanket and drainage zones and covered with a low permeability earth layer and top soil with vegetation. Eight major review criteria categories have been developed ranging from the loads imposed on the BGV structure through material quality and durability considerations. Specific design review criteria have been developed in detail for seven of the eight major categories. 59 refs., 14 figs., 2 tabs.

Denson, R.H.; Bennett, R.D.; Wamsley, R.M.; Bean, D.L.; Ainsworth, D.L.

1987-12-01T23:59:59.000Z

55

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

56

Separating the dynamical effects of climate change and ozone depletion. Part  

E-Print Network [OSTI]

) fixed at 1960 levels and ozone depleting substances (ODSs) varying in time, 2) ODSs fixed at 1960 levels averaged wave drag in SH spring and summer, as well as for final warming dates. Ozone depletion a significant impact on the stratosphere on both a global and a regional scale. Over the past three decades

Wirosoetisno, Djoko

57

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

58

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

59

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

60

Climatological simulations of ozone and atmospheric aerosols in the Greater Cairo region  

SciTech Connect (OSTI)

An integrated chemistry-climate model (RegCM4-CHEM) simulates present-day climate, ozone and tropospheric aerosols over Egypt with a focus on Greater Cairo (GC) region. The densley populated GC region is known for its severe air quality issues driven by high levels of anthropogenic pollution in conjuction with natural sources such as dust and agricultural burning events. We find that current global emission inventories underestimate key pollutants such as nitrogen oxides and anthropogenic aerosol species. In the GC region, average-ground-based NO2 observations of 40-60 ppb are substantially higher than modeled estimates (5-10 ppb), likely due to model grid resolution, improper boundary layer representation, and poor emissions inventories. Observed ozone concentrations range from 35 ppb (winter) to 80 ppb (summer). The model reproduces the seasonal cycle fairly well, but modeled summer ozone is understimated by approximately 15 ppb and exhibits little interannual variability. For aerosols, springtime dust events dominate the seasonal aerosol cycle. The chemistry-climate model captures the springtime peak aerosol optical depth (AOD) of 0.7-1 but is slightly greater than satellite-derived AOD. Observed AOD decreases in the summer and increases again in the fall due to agricultural burning events in the Nile Delta, yet the model underestimates this fall observed AOD peak, as standard emissions inventories underestimate this burning and the resulting aerosol emissions. Our comparison of modeled gas and particulate phase atmospheric chemistry in the GC region indicates that improved emissions inventories of mobile sources and other anthropogenic activities are needed to improve air quality simulations in this region.

Steiner, A. L.; Tawfik, A. B.; Shalaby, A.; Zakey, A. S.; Abdel Wahab, M. M.; Salah, Z.; Solmon, F.; Sillman, S.; Zaveri, Rahul A.

2014-04-16T23:59:59.000Z

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

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]

for the de- livery of solar radiation assessments at ground level. In Proceedings of the 23rd EARSeL Annual, Meteosat, solar radiation, climatology, database, information system ABSTRACT: An information system, called HelioClim, is offered for answering the needs for long-term time-series of solar radiation data

Paris-Sud XI, Université de

62

Environmental Assessment and Finding of No Significant Impact: Widening Trench 36 of the 218-E-12B Low-Level Burial Ground, Hanford Site, Richland, Washington  

SciTech Connect (OSTI)

This environmental assessment was prepared to assess potential environmental impacts associated with the proposed action to widen and operate unused Trench 36 in the 218-E-12B Low-Level Burial Ground for disposal of low-level waste. Information contained herein will be used by the Manager, U.S. Department of Energy, Richland Operations Office, to determine if the Proposed Action is a major federal action significantly affecting the quality of the human environment. If the Proposed Action is determined to be major and significant, an environmental impact statement will be prepared. If the Proposed Action is determined not to be major and significant, a Finding of No Significant Impact will be issued and the action may proceed. Criteria used to evaluate significance can be found in Title 40, Code of Federal Regulations 1508.27. This environmental assessment was prepared in compliance with the ''National Environmental Policy Act of1969'', as amended, the Council on Environmental Quality Regulations for Implementing the Procedural Provisions of ''National Environmental Policy Act'' (Title 40, Code of Federal Regulations 1500-1508), and the U.S. Department of Energy Implementing Procedures for ''National Environmental Polio Act'' (Title 10, Code of Federal Regulations 1021). The following is a description of each section of this environmental assessment. (1) Purpose and Need for Action. This section provides a brief statement concerning the problem or opportunity the U.S, Department of Energy is addressing with the Proposed Action. Background information is provided. (2) Description of the Proposed Action. This section provides a description of the Proposed Action with sufficient detail to identify potential environmental impacts. (3) Alternatives to the Proposed Action. This section describes reasonable,alternative actions to the Proposed Action, which addresses the Purpose and Need. A No Action Alternative, as required by Title 10, Code of Federal Regulations 1021, also is described. (4) Affected Environment. This section provides a brief description of the locale in which the Proposed Action would take place. (5) Environmental Impacts. This section describes the range of environmental impacts, beneficial and adverse, of the Proposed Action. Impacts of alternatives briefly are discussed. (6) Permits and Regulatory Requirements. This section provides a brief description of permits and regulatory requirements for the Proposed Action. (7) Organizations Consulted. This section lists any outside groups, agencies, or individuals contacted as part of the environmental assessment preparation and/or review. (8) References. This section provides a list of documents used to contribute information or data in preparation of this environmental assessment.

N /A

1999-02-11T23:59:59.000Z

63

Atmospheric Environment 39 (2005) 28292838 Diurnal and seasonal cycles of ozone precursors observed from  

E-Print Network [OSTI]

characteristics. Ethane and propane, largely originated from leakage of natural gas or liquefied petroleum gases) and nitrogen oxides (NO+NO2 ¼ NOx), ozone is photochemically pro- duced and can accumulate to hazardous levels

Wingenter, Oliver W.

64

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...

65

Analysis of Ground-Water Levels and Associated Trends in Yucca Flat, Nevada Test Site, Nye County, Nevada, 1951-2003  

SciTech Connect (OSTI)

Almost 4,000 water-level measurements in 216 wells in the Yucca Flat area from 1951 to 2003 were quality assured and analyzed. An interpretative database was developed that describes water-level conditions for each water level measured in Yucca Flat. Multiple attributes were assigned to each water-level measurement in the database to describe the hydrologic conditions at the time of measurement. General quality, temporal variability, regional significance, and hydrologic conditions are attributed for each water-level measurement. The database also includes narratives that discuss the water-level history of each well. Water levels in 34 wells were analyzed for variability and for statistically significant trends. An attempt was made to identify the cause of many of the water-level fluctuations or trends. Potential causes include equilibration following well construction or development, pumping in the monitoring well, withdrawals from a nearby supply well, recharge from precipitation, earthquakes, underground nuclear tests, land subsidence, barometric pressure, and Earth tides. Some of the naturally occurring fluctuations in water levels may result from variations in recharge. The magnitude of the overall water-level change for these fluctuations generally is less than 2 feet. Long-term steady-state hydrographs for most of the wells open to carbonate rock have a very similar pattern. Carbonate-rock wells without the characteristic pattern are directly west of the Yucca and Topgallant faults in the southwestern part of Yucca Flat. Long-term steady-state hydrographs from wells open to volcanic tuffs or the Eleana confining unit have a distinctly different pattern from the general water-level pattern of the carbonate-rock aquifers. Anthropogenic water-level fluctuations were caused primarily by water withdrawals and nuclear testing. Nuclear tests affected water levels in many wells. Trends in these wells are attributed to test-cavity infilling or the effects of depressurization following nuclear testing. The magnitude of the overall water-level change for wells with anthropogenic trends can be large, ranging from several feet to hundreds of feet. Vertical water-level differences at 27 sites in Yucca Flat with multiple open intervals were compared. Large vertical differences were noted in volcanic rocks and in boreholes where water levels were affected by nuclear tests. Small vertical differences were noted within the carbonate-rock and valley-fill aquifers. Vertical hydraulic gradients generally are downward in volcanic rocks and from pre-Tertiary clastic rocks toward volcanic- or carbonate-rock units.

J.M. Fenelon

2005-10-05T23:59:59.000Z

66

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

67

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

68

2, 15091543, 2002 Ozone production  

E-Print Network [OSTI]

.atmos-chem-phys.org/acpd/2/1509/ c European Geosciences Union 2002 Atmospheric Chemistry and Physics Discussions Ozone as a consequence of local catabatic winds. Aver- age mid-day peroxy radical concentrations at Mt. Cimone; Atlas and Ridley, 1996; Fischer et al., 1998; Zanis et al., 2000a, b). Often, free tropospheric

Boyer, Edmond

69

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

70

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

71

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

72

Ozone effects on net primary production and carbon sequestration in the conterminous United States using a biogeochemistry model  

E-Print Network [OSTI]

The effects of air pollution on vegetation may provide an important control on the carbon cycle that has not yet been widely considered. Prolonged exposure to high levels of ozone, in particular, has been observed to inhibit ...

Felzer, Benjamin Seth.; Kicklighter, David W.; Melillo, Jerry M.; Wang, Chien.; Zhuang, Qianlai.; Prinn, Ronald G.

73

Ozone production in transpacific Asian pollution plumes and implications for ozone air quality in California  

E-Print Network [OSTI]

Ozone production in transpacific Asian pollution plumes and implications for ozone air quality in transpacific Asian pollution plumes, and the implications for ozone air quality in California, by using pollution plumes. Strong dilution of Asian pollution plumes takes place during entrainment in the U

Park, Rokjin

74

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

75

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

76

Tropospheric Ozone Pollution and Personal Exposure  

E-Print Network [OSTI]

://www.nctcog.org/trans/air/ozone/formation.gif #12;Health Effects · Chest pain, coughing, throat irritation, and congestion · Wheezing and difficulty

Toohey, Darin W.

77

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

Energy Savers [EERE]

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

78

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...

79

GEOPHYSICAL RESEARCH LETTERS, VOL. 27, NO. 21, PAGES 3465-3468, NOVEMBER 1, 2000 Increasing background ozone in surface air  

E-Print Network [OSTI]

that an important consideration for pollution control strategies is the O3 back- ground present in surface air over background ozone in surface air over the United States C.-Y. Cynthia Lin, Daniel J. Jacob, J. William Munger in surface air over the United States from 1980 to 1998 is examined using monthly probability distributions

Lin, C.-Y. Cynthia

80

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

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

An Assessment of Tropospheric Ozone Pollution  

E-Print Network [OSTI]

An Assessment of Tropospheric Ozone Pollution --A North American Perspective-- Surface Urban, California 94304 #12;AN ASSESSMENT OF TROPOSPHERIC OZONE POLLUTION: A NORTH AMERICAN PERSPECTIVE The NARSTO, Instituto Mexicano del Petroleo, Mexico, D.F., Mexico Alan Dunker, General Motors Research & Development

82

Indoor Secondary Pollutants from Household Product Emissions inthe Presence of Ozone: A Bench-Scale Chamber Study  

SciTech Connect (OSTI)

Ozone-driven chemistry is a major source of indoor secondary pollutants of health concern. This study investigates secondary air pollutants formed from reactions between constituents of household products and ozone. Gas-phase product emissions were introduced along with ozone at constant rates into a 198-L Teflon-lined reaction chamber. Gas-phase concentrations of reactive terpenoids and oxidation products were measured. Formaldehyde was a predominant oxidation byproduct for the three studied products, with yields under most conditions of 20-30% with respect to ozone consumed. Acetaldehyde, acetone, glycolaldehyde, formic acid and acetic acid were each also detected for two or three of the products. Immediately upon mixing of reactants, a scanning mobility particle sizer detected particle nucleation events that were followed by a significant degree of ultrafine particle growth. The production of secondary gaseous pollutants and particles depended primarily on the ozone level and was influenced by other parameters such as the air-exchange rate. Hydroxyl radical concentrations in the range 0.04-200 x 10{sup 5} molecules cm{sup -3} were measured. OH concentrations were observed to vary strongly with residual ozone level in the chamber, which was in the range 1-25 ppb, as is consistent with expectations from a simplified kinetic model. In a separate test, we exposed the dry residue of two products to ozone in the chamber and observed the formation of gas-phase and particle-phase secondary oxidation products.

Destaillats, Hugo; Lunden, Melissa M.; Singer, Brett C.; Coleman,Beverly K.; Hodgson, Alfred T.; Weschler, Charles J.; Nazaroff, William W.

2005-10-01T23:59:59.000Z

83

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

E-Print Network [OSTI]

from Ozone Reaction with HVAC Filters Hugo Destaillats,from Ozone Reaction with HVAC Filters Hugo Destaillatsfrom Ozone Reaction with HVAC Filters Hugo Destaillats

Destaillats, Hugo

2012-01-01T23:59:59.000Z

84

E-Print Network 3.0 - aura-omi tropospheric ozone Sample Search...  

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

atmospheric ozone. The Ozone Monitoring Instrument (OMI) onboard the satellite provides global total column ozone (TCO) and in combination Summary: with other instruments...

85

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

SciTech Connect (OSTI)

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.

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

2009-09-09T23:59:59.000Z

86

Study of air pollution: Effects of ozone on neuropeptide-mediated responses in human subjects. Final report  

SciTech Connect (OSTI)

The study examined the hypothesis that ozone inactivates the enzyme, neutral endopeptidase, responsible for limiting the effects of neuropeptides released from afferent nerve endings. Cough response of capsaicin solution delivered from a nebulizer at 2 min. intervals until two or more coughs were produced. Other endpoints measured included irritative symptoms as rated by the subjects on a nonparametric scale, spirometry, of each concentration of ozone were compared to those of filtered air in a single-blind randomized sequence. The results indicate that a 2 h. exposure to 0.4 ppm of ozone with intermittent light exercise alters the sensitivity of airway nerves that mediate the cough response to inhaled materials. This dose of ozone also caused a change in FEV1. A lower level of ozone, 0.02 ppm, caused a change in neither cough threshold nor FEV1, even when the duration of exposure was extended to three hours. The findings are consistent with the author's hypothesis that ozone may sensitize nerve endings in the airways by inactivating neutral endopeptidase, an enzyme that regulates their activity, but they do not demonstrate that directly examining an effect directly mediated by airway nerves allows detection of effects of ozone at doses below those causing effects detected by standard tests of pulmonary function.

Boushey, H.A.

1991-11-01T23:59:59.000Z

87

17 October 2014 Antarctic Ozone Bulletin  

E-Print Network [OSTI]

as measured with an electrochemical ozonesonde on 10 October. One can see two large "bite-outs" of ozone). Ushuaia is marked with a green dot. One can see that Ushuaia is well inside the polar vortex. The PV data

Toohey, Darin W.

88

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

89

Methane production from ozonated pulp mill effluent  

SciTech Connect (OSTI)

A study was made of the production of methane from desugared spent sulfite liquor (SSL) reacted with ozone. The ozonated SSL was fed continuously to three anaerobic fermenters for three months as the sole source of carbon and energy. The fermenters were inoculated with anaerobic bacteria obtained from sewage sludge and acclimated for 1 month in ozonated SSL prior to continuous fermentation. Chemical and biological parameters such as COD, BOD, total sulfur content, redox potential, pH, fatty acid composition, and methane bacteria populations were monitored to determine changes in the SSL during fermentation. Methane production from ozone-treated SSL averaged 1.7 liters/ liter or 17 ml of CH/sub 4/ produced/gram of volatile solids fed. Fatty acis analysis of fermenter effluent indicated a net production of 58 mM/ liter of acetate during ozonated SSL fermentation. This acetic acid production shows future potential for further fermentation by protein-producing yeast. Although the rate of conversion of volatile solids to CH/sub 4/ in this process was not competitive with domestic or agricultural waste digesters, this study did indicate the potential benefits of ozonating organic wastes for increased methane fermentation yields.

Bremmon, C.E.; Jurgensen, M.F.; Patton, J.T.

1980-07-01T23:59:59.000Z

90

Effects of a modular two-step ozone-water and annealing process on silicon carbide graphene  

SciTech Connect (OSTI)

By combining ozone and water, the effect of exposing epitaxial graphene on silicon carbide to an aggressive wet-chemical process has been evaluated after high temperature annealing in ultra high vacuum. The decomposition of ozone in water produces a number of oxidizing species, however, despite long exposure times to the aqueous-ozone environment, no graphene oxide was observed after the two-step process. The systems were comprehensively characterized before and after processing using Raman spectroscopy, core level photoemission spectroscopy, and angle resolved photoemission spectroscopy together with low energy electron diffraction, low energy electron microscopy, and atomic force microscopy. In spite of the chemical potential of the aqueous-ozone reaction environment, the graphene domains were largely unaffected raising the prospect of employing such simple chemical and annealing protocols to clean or prepare epitaxial graphene surfaces.

Webb, Matthew J., E-mail: matthew.webb@cantab.net; Lundstedt, Anna; Grennberg, Helena [Department of Chemistry—BMC, Uppsala University, Box 576, SE-751 23 Uppsala (Sweden); Polley, Craig; Niu, Yuran; Zakharov, Alexei A.; Balasubramanian, Thiagarajan [MAX IV Laboratory, Lund University, 22100 Lund (Sweden); Dirscherl, Kai [DFM—Danish Fundamental Metrology, Matematiktorvet 307, DK-2800 Lyngby (Denmark); Burwell, Gregory; Guy, Owen J. [College of Engineering, Faraday Tower, Singleton Park, Swansea University, Swansea SA2 8PP (United Kingdom); Palmgren, Pål [VG Scienta Scientific AB, Box 15120, Vallongatan 1, SE-750 15 Uppsala (Sweden); Yakimova, Rositsa [Department of Physics, Chemistry, and Biology, Linköping University, SE-581 83 Linköping (Sweden)

2014-08-25T23:59:59.000Z

91

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

92

Predaceous Ground Beetles  

E-Print Network [OSTI]

Predaceous Ground Beetles Caterpillar Hunters and Bombardier Beetles Rick Minzenmayer, Extension Agent-IPM Chris Sansone, Extension Entomologist Texas Cooperative Extension genus Calosoma, a brightly colored ground beetle. Some species are called...

Sansone, Chris; Minzenmayer, Rick

2003-06-30T23:59:59.000Z

93

A significant number of Iowa water treatment systems are dependent upon well-based water sources. Because of this, CIRAS efforts have been focused on the "Ground Water Levels" as reported by Iowa DNR. Currently, DNR officials are indicating that restricti  

E-Print Network [OSTI]

A significant number of Iowa water treatment systems are dependent upon well-based water sources. Because of this, CIRAS efforts have been focused on the "Ground Water Levels" as reported by Iowa DNR. Currently, DNR officials are indicating that restrictions or loss of the water supply is not likely

Lin, Zhiqun

94

Ground Turkey Stroganoff Ingredients  

E-Print Network [OSTI]

Ground Turkey Stroganoff Ingredients: 8 ounces egg noodles, uncooked 1 pound ground turkey 1 onion. Meanwhile, brown ground turkey and onions in non stick skillet until meat is no longer pink and onions cup of egg noodles on plate, top with 1/2 cup of turkey mixture. Equipment: Knife Cutting board

Liskiewicz, Maciej

95

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

96

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

97

The impact of interannual variability on multidecadal total ozone simulations  

E-Print Network [OSTI]

to reinforce the chemical ozone depletion caused by the enhanced aerosol loading following the eruption of Mt

Jackman, Charles H.

98

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

99

Cooking with Ground Pork  

E-Print Network [OSTI]

to thaw. Even when cooked, pork that has been thawed at room temperature can make you sick. Cooking ground pork safely For dishes that contain ground pork, cook the pork before mixing it with other ingredients. How to store cooked ground pork Leftover... dishes made with ground pork should be stored in a covered dish in the refrigerator right away to prevent spoilage. Use it within 3 days. Reheat foods with ground pork until they are steaming hot, bubbling, or at 165 degrees. Other uses Use cooked...

Anding, Jenna

2008-12-09T23:59:59.000Z

100

Ground Water Management Act (Virginia)  

Broader source: Energy.gov [DOE]

Under the Ground Water Management Act of 1992, Virginia manages ground water through a program regulating the withdrawals in certain areas called Ground Water Management Areas (GWMA). Currently,...

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

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

E-Print Network [OSTI]

and exposed to LSX ambient ozone for two months. Arrows indicate pestained SDS-PAGE molecular weight standards (kD) and Rubisco large subunit. Lane R = pure spinach Rubisco large subunit. Lanes 1 and 2 = control seedlings in the Ozoban study. Lanes 3 and 4... radicals are produced during normal metabolism when oxygen is reduced to water. Grimes et al. (1983) studied the products that form from ozone in cells and found no detectable superoxide radicals, leading them to propose that either ozone or hydroxyl...

Posey, Karen Lashea

1995-01-01T23:59:59.000Z

102

Ozone determination in different copying centers  

E-Print Network [OSTI]

&ixicolr&gi 1st ed. , New York. Hemisphere Publishing Corp, 1 987, ppl35-13(? 12. Menzel, D. B. : Toxicity of Ozone, Oxygen and Radiation. AI111 Rev. of Pharmacol. 1970; 10: 37&)-394. 13. Menzel, D. B. : Ozone: An overview of its toxicity in m;in . in...-Threshold Limit Values for Chemi?;il Substances and Physical Agents in the Work Environm?ni 1991-1992. Cincinnati, Ohio: ACGIH 1991 24. Wadden, R. A. , and P. A. Scheff: /ndoor At't Pollt&ttr ii l si ?d New York: John Wiley & Sons, inc. , 1983, ppl-5. 25...

Lai, Chen-Fu

1993-01-01T23:59:59.000Z

103

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

104

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

105

Cooking with Ground Beef  

E-Print Network [OSTI]

This fact sheet describes the nutritional value and safe storage of ground beef, a commodity food. It also offers food preparation ideas....

Anding, Jenna

2008-12-09T23:59:59.000Z

106

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.

107

Ground State Quantum Computation  

E-Print Network [OSTI]

We formulate a novel ground state quantum computation approach that requires no unitary evolution of qubits in time: the qubits are fixed in stationary states of the Hamiltonian. This formulation supplies a completely time-independent approach to realizing quantum computers. We give a concrete suggestion for a ground state quantum computer involving linked quantum dots.

Ari Mizel; M. W. Mitchell; Marvin L. Cohen

1999-08-11T23:59:59.000Z

108

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

109

Royal Swedish Academy of Sciences 2005 http://www.ambio.kva.se  

E-Print Network [OSTI]

the environment from acidification and eutrophication and to reduce exposures to ground-level ozone. However) described the effects of shipping emissions on acidification, eutrophication, and ground-level ozone

110

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

1995-01-01T23:59:59.000Z

111

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

112

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

113

Application of gaseous disinfectants ozone and chlorine dioxide for inactivation of Bacillus subtilis spores  

E-Print Network [OSTI]

inhibitor line Ozone Generator Oxygen Concentrator CellSequal oxygen concentrator and Pure-O-Tech ozone generator.This oxygen is then supplied into the ozone generator for

Aydogan, Ahmet

2006-01-01T23:59:59.000Z

114

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

115

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

116

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

117

airborne antarctic ozone: Topics by E-print Network  

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

winter weather conditions: Severe cold and isolated air ow: circumpolar vortex North pole vortex breakdown replenishes ozone layer from outside: mixes air 12; E11;ects...

118

antarctic ozone recovery: Topics by E-print Network  

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

winter weather conditions: Severe cold and isolated air ow: circumpolar vortex North pole vortex breakdown replenishes ozone layer from outside: mixes air 12; E11;ects...

119

antarctic ozone hole: Topics by E-print Network  

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

winter weather conditions: Severe cold and isolated air ow: circumpolar vortex North pole vortex breakdown replenishes ozone layer from outside: mixes air 12; E11;ects...

120

antarctic ozone experiment: Topics by E-print Network  

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

winter weather conditions: Severe cold and isolated air ow: circumpolar vortex North pole vortex breakdown replenishes ozone layer from outside: mixes air 12; E11;ects...

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

antarctic ozone depletion: Topics by E-print Network  

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

winter weather conditions: Severe cold and isolated air ow: circumpolar vortex North pole vortex breakdown replenishes ozone layer from outside: mixes air 12; E11;ects...

122

Exposure-Relevant Ozone Chemistry in Occupied Spaces  

E-Print Network [OSTI]

from the material balance on ozone (equation 4-1). S [O 3 ](equation 5-2, which reflects a steady-state material balance

Coleman, Beverly Kaye

2009-01-01T23:59:59.000Z

123

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

124

E-Print Network 3.0 - ash ozonation technology Sample Search...  

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

ozonation technology Search Powered by Explorit Topic List Advanced Search Sample search results for: ash ozonation technology Page: << < 1 2 3 4 5 > >> 1 Fine volcanic Predicting...

125

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

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

Climate and Environment (Climate) Impacts of ozone on trees and crops Summary: and carbon sequestration. Vegetation exposure to ozone reduces photosynthesis, growth, and...

126

IMPLEMENTING GROUND SOURCE HEAT PUMP AND GROUND LOOP HEAT EXCHANGER  

E-Print Network [OSTI]

IMPLEMENTING GROUND SOURCE HEAT PUMP AND GROUND LOOP HEAT EXCHANGER MODELS IN THE ENERGYPLUS #12;ii IMPLEMENTING GROUND SOURCE HEAT PUMP AND GROUND LOOP HEAT EXCHANGER MODELS IN THE ENERGYPLUS............................................................... 2 1.3. Overview of the Parameter Estimation Water-to-Water Heat Pump Model ........... 5 1

127

Secondary organic aerosol from ozone-initiated reactions with terpene-rich household products  

SciTech Connect (OSTI)

We analyzed secondary organic aerosol (SOA) data from a series of small-chamber experiments in which terpene-rich vapors from household products were combined with ozone under conditions analogous to product use indoors. Reagents were introduced into a continuously ventilated 198 L chamber at steady rates. Consistently, at the time of ozone introduction, nucleation occurred exhibiting behavior similar to atmospheric events. The initial nucleation burst and growth was followed by a period in which approximately stable particle levels were established reflecting a balance between new particle formation, condensational growth, and removal by ventilation. Airborne particles were measured with a scanning mobility particle sizer (SMPS, 10 to 400 nm) in every experiment and with an optical particle counter (OPC, 0.1 to 2.0 ?m) in a subset. Parameters for a three-mode lognormal fit to the size distribution at steady state were determined for each experiment. Increasing the supply ozone level increased the steady-state mass concentration and yield of SOA from each product tested. Decreasing the air-exchange rate increased the yield. The steady-state fine-particle mass concentration (PM1.1) ranged from 10 to> 300 mu g m-3 and yields ranged from 5percent to 37percent. Steady-state nucleation rates and SOA mass formation rates were on the order of 10 cm-3 s-1 and 10 mu g m-3 min-1, respectively.

Coleman, Beverly; Coleman, Beverly K.; Lunden, Melissa M.; Destaillats, Hugo; Nazaroff, William W.

2008-01-01T23:59:59.000Z

128

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

129

ORIGINAL CONTRIBUTION Ozone and Short-term Mortality  

E-Print Network [OSTI]

. With the National Morbidity, Mortality, and Air Pollution Study (NMMAPS), we have developed na- tional approaches Ambient Air Qual- ity Standard (NAAQS) for ozone, adding a daily maximum 8-hour stan- dard of 80 ppb.19 Because of the relevance of epidemiologic evi- dence to the NAAQS for ozone and other pollutants

Dominici, Francesca

130

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

131

Proceedings: Indoor Air 2005 OZONE REMOVAL BY RESIDENTIAL HVAC FILTERS  

E-Print Network [OSTI]

Proceedings: Indoor Air 2005 2366 OZONE REMOVAL BY RESIDENTIAL HVAC FILTERS P Zhao1,2 , JA Siegel1, Austin, Texas 78758, USA ABSTRACT HVAC filters have a significant influence on indoor air quality% for Filter #2 at a face velocity of 0.81 cm/s. The potential for HVAC filters to affect ozone concentrations

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

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

135

Ozone ensemble forecast with machine learning Vivien Mallet,1,2  

E-Print Network [OSTI]

Ozone ensemble forecast with machine learning algorithms Vivien Mallet,1,2 Gilles Stoltz,3 forecasts. The latter rely on a multimodel ensemble built for ozone forecasting with the modeling system Europe in order to forecast ozone daily peaks and ozone hourly concentrations. On the basis of past

Paris-Sud XI, Université de

136

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

E-Print Network [OSTI]

, no extensive studies on ozone in this area have been published. This study presents a broad overview of the ozone problem in the DFW area. An ozone spatial and temporal climatology was constructed using ozone data at 23 different monitoring sites from 1980...

Nobis, Timothy Edward

1998-01-01T23:59:59.000Z

137

Effects of ozone on the respiratory health, allergic sensitization, and cellular immune system in children  

SciTech Connect (OSTI)

To investigate the lasting effects of high ozone concentrations under environmental conditions, we examined the respiratory health, pulmonary function, bronchial hyperresponsiveness to methacholine, allergic sensitization, and lymphocyte subpopulations of 10- to 14-yr-old children. A total of 218 children recruited from an area with high ozone concentrations (Group A) were tested against 281 children coming from an area with low ozone concentrations (Group B). As to subjective complaints, categorized as 'usually cough with or without phlegm,' 'breathlessness,' and 'susceptibility to chest colds,' there was no difference between the two groups. The lung function parameters were similar, but in Group A subjects' bronchial hyperresponsiveness occurred more frequently and was found to be more severe than in Group B (29.4 versus 19.9%, p less than 0.02; PD20 2,100 {plus minus} 87 versus 2,350 {plus minus} 58 micrograms, p less than 0.05). In both groups the number of children who had been suffering from allergic diseases and sensitization to aeroallergens, found by means of the skin test, was the same. Comparison of the total IgE levels showed no difference at all between the two groups. As far as the white blood cells are concerned, the total and differential cell count was the same, whereas lymphocyte subpopulations showed readily recognizable changes.

Zwick, H.; Popp, W.; Wagner, C.; Reiser, K.; Schmoeger, J.B.; Boeck, A.H.; Herkner, K.; Radunsky, K. (Pulmonary Department, Krankenhaus Lainz, Vienna (Austria))

1991-11-01T23:59:59.000Z

138

Fire hazards analysis for solid waste burial grounds  

SciTech Connect (OSTI)

This document comprises the fire hazards analysis for the solid waste burial grounds, including TRU trenches, low-level burial grounds, radioactive mixed waste trenches, etc. It analyzes fire potential, and fire damage potential for these facilities. Fire scenarios may be utilized in future safety analysis work, or for increasing the understanding of where hazards may exist in the present operation.

McDonald, K.M.

1995-09-28T23:59:59.000Z

139

GROUND WATER CONTAMINATION  

SciTech Connect (OSTI)

As required by the terms of the above referenced grant, the following summary serves as the Final Report for that grant. The grant relates to work performed at two separate sites, the Hoe Creek Underground Coal Gasification Site south of Gillette, Wyoming, and the Rock Springs In-Situ Oil Shale Retort Site near Rock Springs, Wyoming. The primary concern to the State of Wyoming at each site is ground water contamination (the primary contaminants of concern are benzene and related compounds), and the purpose of the grant has been to provide tiding for a Geohydrologist at the appropriate State agency, specifically the Land Quality Division (LQD) of the Wyoming Department of Environmental Quality. The LQD Geohydrologist has been responsible for providing technical and regulatory support to DOE for ground water remediation and subsequent surface reclamation. Substantial progress has been made toward remediation of the sites, and continuation of LQD involvement in the remediation and reclamation efforts is addressed.

Unknown

1999-09-01T23:59:59.000Z

140

Evaluation of microporous carbon filters as catalysts for ozone decomposition  

SciTech Connect (OSTI)

Ozone is produced in small quantities in photocopiers and laser printers in the workplace and large quantities in industrial waste water treatment facilities. Carbon filters are commonly used to decompose this unwanted ozone. The three most important factors in producing a filter for this purpose are flow properties, efficiency, and cost. Most ozone decomposition applications require very low back-pressure at modest flow rates. The tradeoff between the number of pores and the size of the pores will be discussed. Typical unfiltered emissions in the workplace are approximately 1 ppm. The maximum permissible exposure limit, PEL, for worker exposure to ozone is 0.1 ppm over 8 hours. Several methods have been examined to increase the efficiency of ozone decomposition. Carbon surfaces were modified with catalysts, the surface activated, and the surface area was increased, in attempts to decompose ozone more effectively. Methods to reduce both the processing and raw material costs were investigated. Several sources of microporous carbon were investigated as ozone decomposition catalysts. Cheaper processing routes including macropore templating, faster drying and extracting methods were also studied.

Whinnery, L.; Coutts, D.; Shen, C.; Adams, R. [Sandia National Labs., Livermore, CA (United States); Quintana, C.; Showalter, S. [Sandia National Labs., Albuquerque, NM (United States)

1994-12-31T23:59:59.000Z

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.


141

MODELING OF VERTICAL GROUND LOOP HEAT EXCHANGERS FOR GROUND SOURCE  

E-Print Network [OSTI]

MODELING OF VERTICAL GROUND LOOP HEAT EXCHANGERS FOR GROUND SOURCE HEAT PUMP SYSTEMS By CENK SOURCE HEAT PUMP SYSTEMS Thesis Approved: ___________________________________________ Thesis Adviser scale test data. The short-term behavior of ground-coupled heat pump systems is important for the design

142

Effects of ambient ozone on respiratory function and symptoms in Mexico City schoolchildren  

SciTech Connect (OSTI)

The effects of ambient ozone (O3) on respiratory function and acute respiratory symptoms were evaluated in 143 7- to 9-yr-old schoolchildren followed longitudinally at 1- to 2-wk intervals over a period of 6 months at three schools in Pedregal, Mexico City. The maximum O3 level exceeded the World Health Organization guideline of 80 ppb and the U.S. standard of 120 ppb in every week. For an increase from lowest to highest in the mean O3 level during the 48 hr before spirometry (53 ppb), logistic regression estimated relative odds of 1.7 for a child reporting cough/phlegm on the day of spirometry. For the full population, the mean O3 level during the hour before spirometry, not adjusted for temperature and humidity, predicted a significant decrement in FVC but not in FEV1 or FEF25-75. In contrast, the mean O3 level during the previous 24-, 48-, and 168-h periods predicted significant decrements in FEV1 and FEF25-75 but not in FVC. Ozone was consistently associated with a greater decrement in lung function for the 15 children with chronic phlegm as compared with the children without chronic cough, chronic phlegm, or wheeze. Ozone in the previous 24-, 48-, and 168-h periods predicted decrements in FEV1 for children of mothers who were current or former smokers, but not for children of mothers who were never smokers. Many of these effects were reduced in multiple regression analyses including temperature and humidity, as temperature and O3 were highly correlated.

Castillejos, M.; Gold, D.R.; Dockery, D.; Tosteson, T.; Baum, T.; Speizer, F.E. (Universidad Autonoma Metropolitana-X, Mexico City, (Mexico))

1992-02-01T23:59:59.000Z

143

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

144

Attosecond electronic and nuclear quantum photodynamics of the ozone molecule  

SciTech Connect (OSTI)

Coupled electron-nuclear dynamics simulations are investigated for the ozone molecule on the attosecond time scale. The initial wavepacket is pumped as a coherent superposition of two or three electronic states.

Halász, G. J. [Department of Information Technology, University of Debrecen, H-4010 Debrecen, PO Box 12 (Hungary)] [Department of Information Technology, University of Debrecen, H-4010 Debrecen, PO Box 12 (Hungary); Perveaux, A.; Lasorne, B.; Gatti, F. [CTMM, Institut Charles Gerhardt Montpellier, F-34095 Montpellier Cedex 5 (France)] [CTMM, Institut Charles Gerhardt Montpellier, F-34095 Montpellier Cedex 5 (France); Robb, M. A. [Imperial College London, Department of Chemistry, London SW7 2AZ (United Kingdom)] [Imperial College London, Department of Chemistry, London SW7 2AZ (United Kingdom); Vibók, Á. [Department of Theoretical Physics, University of Debrecen, H-40410 Debrecen, PO Box 5 (Hungary)] [Department of Theoretical Physics, University of Debrecen, H-40410 Debrecen, PO Box 5 (Hungary)

2013-11-13T23:59:59.000Z

145

Global Health and Economic Impacts of Future Ozone Pollution  

E-Print Network [OSTI]

We assess the human health and economic impacts of projected 2000-2050 changes in ozone pollution using the MIT Emissions Prediction and Policy Analysis-Health Effects (EPPA-HE) model, in combination with results from the ...

Webster, Mort D.

146

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

147

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

148

Ground motion data for International Collider models  

SciTech Connect (OSTI)

The proposed location for the International Linear Collider (ILC) in the Americas region is Fermilab in Batavia Illinois. If built at this location the tunnels would be located in the Galena Platteville shale at a depth of 100 or more meters below the surface. Studies using hydro static water levels and seismometers have been conducted in the MINOS hall and the LaFrange Mine in North Aurora Illinois to determine the level of ground motion. Both these locations are in the Galena Platteville shale and indicate the typical ground motion to be expected for the ILC. The data contains both natural and cultural noise. Coefficients for the ALT law are determined. Seismic measurements at the surface and 100 meters below the surface are presented.

Volk, J.T.; LeBrun, P.; Shiltsev, V.; Singatulin, S.; /Fermilab

2007-11-01T23:59:59.000Z

149

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

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

Unattended ground sensor situation assessment workstation  

SciTech Connect (OSTI)

Effective utilization of unattended ground sensors (UGSs) in a theater reconnaissance, surveillance, target acquisition, and kill assessment environment requires that a human operator be able to interpret, and collectively assess, the significance of real time data obtained from UGS emplacements over large geographical regions of interest. The products of this UGS data interpretation and assessment activity can then be used in the decision support process for command level evaluation of appropriate courses of action. Advancements in both sensor hardware technology and in software systems and processing technology have enabled the development of practical real time situation assessment capabilities based upon information from unattended ground sensors. A decision support workstation that employs rule-based expert system processing of reports from unattended ground sensors is described. The primary goal of this development activity is to produce a suite of software to track vehicles using data from unattended ground sensors. The situational assessment products from this system have stand-alone utility, but are also intended to provide cueing support for overhead sensors and supplementary feeds to all-source fusion centers. The conceptual framework, developmental architecture, and demonstration field tests of the system are described.

Jeppesen, D.; Trellue, R.

1997-04-01T23:59:59.000Z

152

Comparison of three vertically resolved ozone data sets: climatology, trends and radiative forcings  

E-Print Network [OSTI]

Climate models that do not simulate changes in stratospheric ozone concentrations require the prescription of ozone fields to accurately calculate UV fluxes and stratospheric heating rates. In this study, three different ...

Hassler, B.

153

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

E-Print Network [OSTI]

Atmospheric Environment 38 (2004) 1425­1436 A development of ozone abatement strategies are generated in the Grenoble plume. For developing ozone abatement strategies it is important to know whether

154

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

155

Examination of the Effects of Sea Salt Aerosols on Southeast Texas Ozone and Secondary Organic Aerosol  

E-Print Network [OSTI]

such as ozone, reactive nitrogen, mercury, and sulfur containing compounds. Urban areas are most impacted by these trace gases, which is a concern because ozone especially affects the health of citizens. Experiments have three basic parts. First we generate mono...

Benoit, Mark David

2013-02-06T23:59:59.000Z

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

Ground Turkey Stir Fry Ingredients  

E-Print Network [OSTI]

Ground Turkey Stir Fry Ingredients: 1 1/2 cups brown rice, medium- grain, making 3 cups cooked 1 pound ground turkey 4 zucchini 1 onion 1 green pepper 1/4 teaspoon pepper Directions 1. Cook brown rice turkey in skillet and use a spatula to break beef into small pieces as it browns. Keep on stirring

Liskiewicz, Maciej

159

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

160

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

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

Observations of the Temperature Dependent Response of Ozone to NOx Reductions in an Urban Plume  

SciTech Connect (OSTI)

Observations of NO{sub x} in the Sacramento, CA region show that mixing ratios decreased by 30% between 2001 and 2008. Here we use an observation-based method to quantify net ozone production rates in the outflow from the Sacramento metropolitan region and examine the O{sub 3} decrease resulting from reductions in NO{sub x} emissions. This observational method does not rely on assumptions about detailed chemistry of ozone production, rather it is an independent means to verify and test these assumptions. We use an instantaneous steady-state model as well as a detailed 1-D plume model to aid in interpretation of the ozone production inferred from observations. In agreement with the models, the observations show that early in the plume, the NO{sub x} dependence for O{sub x} (O{sub x} = O{sub 3}+NO{sub 2}) production is strongly coupled with temperature, suggesting that temperature dependent biogenic VOC emissions can drive O{sub x} production between NO{sub x}-limited and NO{sub x}-suppressed regimes. As a result, NO{sub x} reductions were found to be most effective at higher temperatures over the 7 year period. We show that violations of the California 1-hour O{sub 3} standard (90 ppb) in the region have been decreasing linearly with decreases in NO{sub x} (at a given temperature) and predict that reductions of NO{sub x} concentrations (and presumably emissions) by an additional 30% (relative to 2007 levels) will eliminate violations of the state 1 hour standard in the region. If current trends continue, a 30% decrease in NO{sub x} is expected by 2012, and an end to violations of the 1 hour standard in the Sacramento region appears to be imminent.

LaFranchi, B W; Goldstein, A H; Cohen, R C

2011-01-25T23:59:59.000Z

162

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

163

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...

164

P ORNiiTM-7004 Results of Ground Level Radiation  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$0.C. 20545*.MSE Cores" _August.. .._ . . -mN

165

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

166

Plasma Chemistry and Plasma Processing, Vol. 23, No. 3, September 2003 ( 2003) Ozone Production in the Negative DC Corona  

E-Print Network [OSTI]

: Corona discharge; corona plasma; plasma reacting flow; ozone; electrostatic precipitator; Damkohler

Chen, Junhong

167

Ground Penetrating Radar, Barrow, Alaska  

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

This is 500 MHz Ground Penetrating Radar collected along the AB Line in Intensive Site 1 beginning in October 2012 and collected along L2 in Intensive Site 0 beginning in September 2011. Both continue to the present.

John Peterson

168

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...

169

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

170

MODELING, SIMULATION AND OPTIMIZATION OF GROUND SOURCE  

E-Print Network [OSTI]

MODELING, SIMULATION AND OPTIMIZATION OF GROUND SOURCE HEAT PUMP SYSTEMS By MUHAMMAD HAIDER KHAN AND OPTIMIZATION OF GROUND SOURCE HEAT PUMP SYSTEMS Thesis Approved..................................................................................................................... 1 1.1 Overview of Ground Source Heat Pump Systems.............................................. 1 1

171

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

172

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

173

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

174

The Exposure-Response Curve for Ozone and Risk of Mortality and the Adequacy of Current Ozone  

E-Print Network [OSTI]

and applied several statistical models to data on air pollution, weather, and mortality for 98 U.S. urban mortality. Interventions to further reduce ozone pollution would benefit public health, even in regions pollutant linked to numerous harmful health effects, including reduced lung function, increased frequency

Dominici, Francesca

175

Nonlinear Dynamics of Longitudinal Ground Vehicle Traction  

E-Print Network [OSTI]

asphalt b) Wet asphalt c) Gravel d) Packed Snow Nonlinear Dynamics of Longitudinal Ground Vehicle Traction

Shaw, Steven W.

176

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

177

CF[sub 3] chemistry: Potential implications for stratospheric ozone  

SciTech Connect (OSTI)

The authors address questions about the chemistry of CF[sub 3] bearing compounds in the atmosphere, and the impact that the existence of and reaction rate constants for such species may have on stratospheric ozone. Species considered include CF[sub 3], CF[sub 3]O, CF[sub 3]O[sub 2], CF[sub 3]OH, CF[sub 3]OOH, CF[sub 3]ONO[sub 2], CF[sub 3]O[sub 2]NO[sub 2], and CF[sub 3]OOCl. Based on their calculational results, the authors suggest a number of experimental measurements which should substantially decrease uncertainties associated with the role of CF[sub 3] species in atmospheric chemistry related to ozone.

Ko, M.K.W.; Sze, N.D.; Rodriguez, J.M.; Weistenstein, D.K.; Heisey, C.W. (Atmospheric and Environmental Research, Inc., Cambridge, MA (United States)); Wayne, R.P.; Biggs, P.; Canosa-Mas, C.E. (Univ. of Oxford, Oxford (United Kingdom)); Sidebottom, H.W.; Treacy, J. (Univ. College, Dublin (Ireland))

1994-01-15T23:59:59.000Z

178

FORMATION OF MOLECULAR OXYGEN AND OZONE ON AMORPHOUS SILICATES  

SciTech Connect (OSTI)

Oxygen in the interstellar medium is seen in the gas phase, in ices (incorporated in H{sub 2}O, CO, and CO{sub 2}), and in grains such as (Mg{sub x} Fe{sub 1-x} )SiO{sub 3} or (Mg{sub x} Fe{sub 1-x} ){sub 2}SiO{sub 4}, 0 < x < 1. In this investigation, we study the diffusion of oxygen atoms and the formation of oxygen molecules and ozone on the surface of an amorphous silicate film. We find that ozone is formed at low temperature (<30 K), and molecular oxygen forms when the diffusion of oxygen atoms becomes significant, at around 60 K. This experiment, besides being the first determination of the diffusion energy barrier (1785 {+-} 35 K) for oxygen atoms on a silicate surface, suggests bare silicates as a possible storage place for oxygen atoms in low-A{sub v} environments.

Jing Dapeng; He Jiao; Vidali, Gianfranco [Physics Department, Syracuse University, Syracuse, NY 13244 (United States); Brucato, John Robert; Tozzetti, Lorenzo [Osservatorio Astrofisico di Arcetri, INAF, I-50125 Florence (Italy); De Sio, Antonio [Department of Physics and Astronomy, University of Florence, I-50125 Florence (Italy)

2012-09-01T23:59:59.000Z

179

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.

180

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

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

Chemistry Summary: stratospheric ozone losses during cold Arctic Januaries, M. Rex, R. J. Salaw- itch, M. L. Santee, J. W. Waters... , and UARS MLS to demonstrate that the...

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

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

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

78992007 Summary: ozone depletion based on sequential assimilation of satellite data from the ENVISATMIPAS and Odin... 2007 Abstract. The objective of this study...

182

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

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

Materials Science ; Energy Storage, Conversion and Utilization 12 Proceedings of Healthy Buildings 2009 Paper 141 Removal of Indoor Ozone with Reactive Materials: Preliminary...

183

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...

184

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....

185

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

186

Plasma Chemistry and Plasma Processing, Vol. 22, No. 4, December 2002 ( 2002) Ozone Production in the Positive DC Corona  

E-Print Network [OSTI]

Plasma Chemistry and Plasma Processing, Vol. 22, No. 4, December 2002 ( 2002) Ozone Production the distribution of ozone, but does not affect the rate of production. KEY WORDS: Corona discharge; corona plasma

Chen, Junhong

187

GROUND LEVEL INVESTIGATION OF ANOMALOUS RADIATION LEVELS IN NIAGARA FALLS, NEW YORK  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$ EGcG ENERGYELIkNATION REPORTFairfield,? . -

188

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...

189

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

190

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.

191

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

192

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

193

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

194

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

E-Print Network [OSTI]

to ~250 ppm were produced using a thermal plasma reactor system based on an ICP torch operating at 2.5 MHz by rapid mixing of molecular oxygen with atomic oxygen produced by the torch. The ozone concentration in industrial processes is increasing. Applications for ozone include treatment of waste water, water

195

Chapter Descriptions, Parties Request, and Timetable 2010 WMO/UNEP Ozone Assessment  

E-Print Network [OSTI]

AND SURFACE ULTRAVIOLET RADIATION CHAPTER 3: FUTURE OZONE AND ITS IMPACT ON SURFACE UV CHAPTER 4) of this 2010 ozone assessment. It provides updated information on degradation products which could have of understanding on ODS degradation products in the stratosphere (e.g., HCl, HF, BrO, CF2O), examines how

Jánosi, Imre M.

196

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

197

Simultaneous retrievals of column ozone and aerosol optical properties from direct and diffuse solar irradiance measurements  

E-Print Network [OSTI]

of column ozone and aerosol optical properties from direct and diffuse solar irradiance measurements, JSimultaneous retrievals of column ozone and aerosol optical properties from direct and diffuse solar irradiance measurements Christian D. Goering,1 Tristan S. L'Ecuyer,1 Graeme L. Stephens,1 James R

Stephens, Graeme L.

198

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

199

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

200

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

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

NORTHEASTERN NATURALIST2009 16(2):307313 Variation in Ozone Sensitivity Within Indian Hemp and  

E-Print Network [OSTI]

NORTHEASTERN NATURALIST2009 16(2):307­313 Variation in Ozone Sensitivity Within Indian Hemp , and Dennis R. Decoteau1 Abstract - Sixteen selections of Apocynum cannabinum (Indian Hemp) and nine, adaxial stipple, similar to symptoms ascribed to ambient ozone in the field. Indian Hemp was more

Decoteau, Dennis R.

202

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

203

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

204

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

205

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

206

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

207

Case Study/ Ground Water Sustainability: Methodology and  

E-Print Network [OSTI]

, or the lack thereof, of ground water flow systems driven by similar hydrogeologic and economic conditionsCase Study/ Ground Water Sustainability: Methodology and Application to the North China Plain of a ground water flow system in the North China Plain (NCP) subject to severe overexploitation and rapid

Zheng, Chunmiao

208

Weekday and Weekend Air Pollutant Levels in Ozone Problem Areas in the U.S.  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy Usage »of| Department ofDepartment ofAnnouncement | Department of| Department of

209

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

210

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

211

Ozone response relationships in healthy nonsmokers  

SciTech Connect (OSTI)

Significant concentration responses were observed in FVC, FEV1, FEF25-75, SGaw, IC, and TLC in 20 healthy, nonsmoking volunteers exposed randomly to 0.00, 0.10, 0.15, 0.20, and 0.25 ppm O/sub 3/. In addition, significant response changes for FVC, FEV1, and FEF25-75 were shown with time over the 2-h exposure. Intermittent, heavy exercise (VE, 68 L/min) lasting 14 min was employed every 30 min during exposure. Inspection of the concentration and time response curves suggests that the threshold for the group response is at or below 0.15 ppm O/sub 3/. Six subjects experienced decreases greater than 5% in FEV1 or greater than 15% in SGaw at 0.15 ppm. This concentration is only slightly higher than the 1-h O/sub 3/ National Ambient Air Quality Standard. A dose-related response was also seen for cough, nose and throat irritation, and chest discomfort. The work load, length of exposure, and individual sensitivity must be considered for establishing a safe O/sub 3/ exposure level.

Kulle, T.J.; Sauder, L.R.; Hebel, J.R.; Chatham, M.D.

1985-07-01T23:59:59.000Z

212

Ozone-response relationships in healthy nonsmokers  

SciTech Connect (OSTI)

Significant concentration responses were observed in FVC1 FEV1, FEF 25-75, SGaw, IC, and TLC in 20 healthy, nonsmoking volunteers exposed randomly to 0.00, 0.10, 0.15, 0.20, and 0.25 ppm O3. In addition, significant response changes for FVC1 FEV1, FEF25-75 were shown with time over the 2-h exposure. Intermittent, heavy exercise (VE1 68L/min) lasting 14 min was employed every 30 min during exposure. Inspection of the concentration and time-response curves suggests that the threshold for the group response is at or below 0.15 ppm O/sub 3/. Six subjects experienced decreases > 5% in SGaw at 0.15 ppm. The concentration is only slightly higher than the 1-h O/sub 3/ National Ambient Air Quality Standard. A dose-related response was also seen for cough, nose and throat irritation, and chest discomfort. The work load, length of exposure, and individual sensitivity must be considered for establishing a safe O/sub 3/ exposure level.

Kulle, T.J.; Sauder, L.R.; Hebel, J.R.; Chatham, M.D.

1985-01-01T23:59:59.000Z

213

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

214

Ozone-depleting-substance control and phase-out plan  

SciTech Connect (OSTI)

Title VI of the Federal Clean Air Act Amendments of 1990 requires regulation of the use and disposal of ozone-depleting substances (ODSs) (e.g., Halon, Freon). Several important federal regulations have been promulgated that affect the use of such substances at the Hanford Site. On April 23, 1993, Executive Order (EO) 12843, Procurement Requirements and Policies for Federal Agencies for Ozone-Depleting Substances (EPA 1993) was issued for Federal facilities to conform to the new US Environmental Protection Agency (EPA) regulations implementing the Clean Air Act of 1963 (CAA), Section 613, as amended. To implement the requirements of Title VI the US Department of Energy, Richland Operations Office (RL), issued a directive to the Hanford Site contractors on May 25, 1994 (Wisness 1994). The directive assigns Westinghouse Hanford Company (WHC) the lead in coordinating the development of a sitewide comprehensive implementation plan to be drafted by July 29, 1994 and completed by September 30, 1994. The implementation plan will address several areas where immediate compliance action is required. It will identify all current uses of ODSs and inventories, document the remaining useful life of equipment that contains ODS chemicals, provide a phase-out schedule, and provide a strategy that will be implemented consistently by all the Hanford Site contractors. This plan also addresses the critical and required elements of Federal regulations, the EO, and US Department of Energy (DOE) guidance. This plan is intended to establish a sitewide management system to address the clean air requirements.

Nickels, J.M.; Brown, M.J.

1994-07-01T23:59:59.000Z

215

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

216

Ground Penetrating Radar in Hydrogeophysics  

SciTech Connect (OSTI)

To meet the needs of a growing population and to provide us with a higher quality of life, increasing pressures are being placed on our environment through the development of agriculture, industry, and infrastructures. Soil erosion, groundwater depletion, salinization, and pollution have been recognized for decades as major threats to ecosystems and human health. More recently, the progressive substitution of fossil fuels by biofuels for energy production and climate change have been recognized as potential threats to our water resources and sustained agricultural productivity. The vadose zone mediates many of the processes that govern water resources and quality, such as the partition of precipitation into infiltration and runoff , groundwater recharge, contaminant transport, plant growth, evaporation, and energy exchanges between the Earth's surface and its atmosphere. It also determines soil organic carbon sequestration and carbon-cycle feedbacks, which could substantially impact climate change. The vadose zone's inherent spatial variability and inaccessibility precludes direct observation of the important subsurface processes. In a societal context where the development of sustainable and optimal environmental management strategies has become a priority, there is a strong prerequisite for the development of noninvasive characterization and monitoring techniques of the vadose zone. In particular, hydrogeophysical approaches applied at relevant scales are required to appraise dynamic subsurface phenomena and to develop optimal sustainability, exploitation, and remediation strategies. Among existing geophysical techniques, ground penetrating radar (GPR) technology is of particular interest for providing high-resolution subsurface images and specifically addressing water-related questions. Ground penetrating radar is based on the transmission and reception of VHF-UHF (30-3000 MHz) electromagnetic waves into the ground, whose propagation is determined by the soil electromagnetic properties and their spatial distribution. As the dielectric permittivity of water overwhelms the permittivity of other soil components, the presence of water in the soil principally governs GPR wave propagation. Therefore, GPR-derived dielectric permittivity is usually used as surrogate measure for soil water content. In the areas of unsaturated zone hydrology and water resources, GPR has been used to identify soil stratigraphy, to locate water tables, to follow wetting front movement, to estimate soil water content, to assist in subsurface hydraulic parameter identification, to assess soil salinity, and to support the monitoring of contaminants. The purpose of this special section of the Vadose Zone Journal is to present recent research advances and applications of GPR in hydrogeophysics, with a particular emphasis on vadose zone investigations. This special section includes contributions presented at the European Geosciences Union General Assembly 2006 (EGU 2006, Vienna, Austria) and the 11th International Conference on Ground Penetrating Radar (GPR 2006, Columbus, OH). The studies presented here deal with a wide range of surface and borehole GPR applications, including GPR sensitivity to contaminant plumes, new methods for soil water content determination, three-dimensional imaging of the subsurface, time-lapse monitoring of hydrodynamic events and inversion techniques for soil hydraulic properties estimation, and joint interpretation of GPR and electric resistivity tomography (ERT) data.

Hubbard, Susan; Lambot, S.; Binley, A.; Slob, E.; Hubbard, S.

2008-01-15T23:59:59.000Z

217

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

218

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

219

Oxidation of methyl tert-butyl ether (MTBE) and ethyl tert-butyl ether (ETBE) by ozone and combined ozone/hydrogen peroxide  

SciTech Connect (OSTI)

The aim of this work was to study the reaction of ozone and combined ozone/hydrogen peroxide on oxygenated additives such as methyl tert-butyl ether (MTBE) and ethyl tert-butyl ether (ETBE) in dilute aqueous solution using controlled experimental conditions. Experiments conducted in a semi-continuous reactor with MTBE and ETBE in combination (initial concentration: 2 mmol/L of each) showed that ETBE was better eliminated than MTBE with both ozone and combined O[sub 3]/H[sub 2]O[sub 2]. batch experiments led to the determination of the ratio of the kinetic constants for the reaction of OH[degree]-radical with MTBE and ETBE (k[sub OH[degree]/ETBE]/k[sub OH[degree]//MTBE] = 1.7). Tert-butyl formate and tert-butyl acetate were identified as the ozonation byproducts of MTBE an ETBE, respectively, while tert-butyl alcohol was found to be produced during the ozonation of both compounds. 10 refs., 10 figs., 1 tab.

Leitner, N.K.V.; Papailhou, A.L.; Croue, J.P.; Dore, M. (Univ. de Poitiers (France)); Peyrot, J. (British Petroleum, Harfleur (France))

1994-01-01T23:59:59.000Z

220

Scale-Up and Demonstration of Fly Ash Ozonation Technology  

SciTech Connect (OSTI)

This is the fourth quarterly report under DOE Cooperative Agreement No.: DE-FC26-03NT41730. Due a number of circumstances, mostly associated with subcontractor agreements, the actual beginning of the project was delayed from its original award date of March 5, 2003. DOE's Project Manager was kept informed (verbally) by PPL's Project Manager throughout this period. Because of this delay, this is the fourth quarterly report and it refers to the time period from January to March 2004. The on-site deployment and testing of the ozonation system took place during this period. This report summarizes these activities including some preliminary results. No significant issues or concerns are identified.

Larry LaBuz; Rui Afonso

2005-03-31T23:59:59.000Z

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.


221

Evaluation of analytical methods to interpret ground deformations due to soft ground tunneling  

E-Print Network [OSTI]

An in depth study was undertaken to evaluate the effectiveness of analytical solutions in describing ground movements induced by soft ground tunneling. The analytical solutions that were examined consider both isotropic ...

Zymnis, Despina M

2009-01-01T23:59:59.000Z

222

Special Section on Ground Water Research in China Featured in This Issue of Ground Water  

E-Print Network [OSTI]

of Ground Water by Xun Zhou1, Jiu J. Jiao2, and Mary P. Anderson3 Contained in this issue of Ground Water, Groundwater Resources and the Related Environ- Hydrogeologic Problems in China, Beijing: Seismological Press

Jiao, Jiu Jimmy

223

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

224

The effect of variability in industrial emissions on ozone formation in Houston, Texas  

E-Print Network [OSTI]

Ambient observations have indicated that high concentrations of ozone observed in the Houston/Galveston area are associated with plumes of highly reactive hydrocarbons, mixed with NOx, from industrial facilities. Ambient ...

Webster, Mort David

2007-01-01T23:59:59.000Z

225

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

226

A Spatial Econometric Approach to Measuring Pollution Externalities: An Application to Ozone Smog  

E-Print Network [OSTI]

A Spatial Econometric Approach to Measuring Pollution Externalities: An Application to Ozone Smog C.-Y. Cynthia Lin University of California at Davis ­ USA Abstract. This paper uses spatial econometrics

Lin, C.-Y. Cynthia

227

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

228

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 continuity equation and the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40). In ...

Monier, Erwan

229

Ozone response to emission changes: a modeling study during the MCMA-2006/MILAGRO Campaign  

E-Print Network [OSTI]

The sensitivity of ozone production to precursor emissions was investigated under five different meteorological conditions in the Mexico City Metropolitan Area (MCMA) during the MCMA-2006/MILAGRO field campaign using the ...

Song, Jihee

230

Ozone predictabilities due to meteorological uncertainties in the Mexico City basin using ensemble forecasts  

E-Print Network [OSTI]

The purpose of the present study is to investigate the sensitivity of ozone (O3)[(O subscript 3)] predictions in the Mexico City Metropolitan Area (MCMA) to meteorological initial uncertainties and planetary boundary layer ...

Bei, Naifang

231

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

E-Print Network [OSTI]

FORMATION OF OZONE AND OXIDATION OF METHANE IN A DIRECT CURRENT CORONA DISCHARGE A Thesis by UMASHANKER TANGIRALA Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1976 Major Subject: Chemical Engineering FORMATION OF OZONE AND OXIDATION OF METHANE IN A DIRECT CURRENT CORONA DISCHARGE A Thesis by UMASHANKER TANGIRALA Approved as to style and content by: (Chairman of Committee) ( ad of Department...

Tangirala, Umashanker

1976-01-01T23:59:59.000Z

232

International Borders, Ground Water Flow, and Hydroschizophrenia  

E-Print Network [OSTI]

beginning to be recognized. The hidden nature of ground water and the lack of international law governingInternational Borders, Ground Water Flow, and Hydroschizophrenia by Todd Jarvis1,2, Mark Giordano3 conducted on transboundary water, transboundary water law, and the mitigation of transboundary water

Wolf, Aaron

233

Rotor Blades and Ground Effect Richard Purvis  

E-Print Network [OSTI]

Rotor Blades and Ground Effect Richard Purvis Department of Mathematics University College London to examine various aspects of rotor blade flows and ground effect. It explores two- and three- dimensional flows, generally concentrating upon regimes that have a degree of rel- evance to typical rotor blade

Purvis, Richard

234

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

235

Ground Loops for Heat Pumps and Refrigeration  

E-Print Network [OSTI]

Ground loops are used for water source heat pumps. Refrigeration can be put on a ground loop. Water-cooled condensing units are more efficient than air-cooled, and they can be put indoors. Indoor location makes piping for desuperheater hot water...

Braud, H. J.

1986-01-01T23:59:59.000Z

236

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

237

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

238

Ground state octupole correlation energies with effective forces  

E-Print Network [OSTI]

The ground state octupole correlation energy is computed with the D1M variant of the Gogny force in different theoretical frameworks and analyzed in detail. First I consider the correlation energy gained at the mean field level by breaking reflection symmetry. Next I consider the energy gain coming from symmetry (parity) restoration and finally I analyze the ground state correlation energy after configuration mixing with axially symmetric octupole states. The impact of the latter on theoretical binding energies indicates that octupole correlations do not affect in a significant way the trend and systematic of binding energies and therefore can not improve the performance of theoretical models in this respect. In particular, the too-large "shell gaps" predicted by self-consistent mean field models and relevant in astrophysics scenarios are not altered by the octupole correlations.

Luis M. Robledo

2015-01-28T23:59:59.000Z

239

Optimization of stabilized leachate treatment using ozone/persulfate in the advanced oxidation process  

SciTech Connect (OSTI)

Highlights: ? Ozone and persulfate reagent (O{sub 3}/S{sub 2}O{sub 8}{sup 2-}) was used to treat stabilized leachate. ? Central composite design (CCD) with response surface methodology (RSM) was applied. ? Operating variables including ozone and persulfate dosage, pH variance, and reaction time. ? Optimum removal of COD, color, and NH{sub 3}–N was 72%, 96%, and 76%, respectively. ? A good value of ozone consumption (OC) obtained with 0.60 (kg O{sub 3}/kg COD). - Abstract: The objective of this study was to investigate the performance of employing persulfate reagent in the advanced oxidation of ozone to treat stabilized landfill leachate in an ozone reactor. A central composite design (CCD) with response surface methodology (RSM) was applied to evaluate the relationships between operating variables, such as ozone and persulfate dosages, pH, and reaction time, to identify the optimum operating conditions. Quadratic models for the following four responses proved to be significant with very low probabilities (<0.0001): COD, color, NH{sub 3}–N, and ozone consumption (OC). The obtained optimum conditions included a reaction time of 210 min, 30 g/m{sup 3} ozone, 1 g/1 g COD{sub 0}/S{sub 2}O{sub 8}{sup 2-} ratio, and pH 10. The experimental results were corresponded well with predicted models (COD, color, and NH{sub 3}–N removal rates of 72%, 96%, and 76%, respectively, and 0.60 (kg O{sub 3}/kg COD OC). The results obtained in the stabilized leachate treatment were compared with those from other treatment processes, such as ozone only and persulfate S{sub 2}O{sub 8}{sup 2-} only, to evaluate its effectiveness. The combined method (i.e., O{sub 3}/S{sub 2}O{sub 8}{sup 2-}) achieved higher removal efficiencies for COD, color, and NH{sub 3}–N compared with other studied applications. Furthermore, the new method is more efficient than ozone/Fenton in advanced oxidation process in the treatment of the same studied leachate.

Abu Amr, Salem S. [School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang (Malaysia); Aziz, Hamidi Abdul, E-mail: cehamidi@eng.usm.my [School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang (Malaysia); Adlan, Mohd Nordin [School of Civil Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang (Malaysia)

2013-06-15T23:59:59.000Z

240

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...

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

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......

242

Scaling Considerations in Ground State Quantum Computation  

E-Print Network [OSTI]

We study design challenges associated with realizing a ground state quantum computer. In such a computer, the energy gap between the ground state and first excited state must be sufficiently large to prevent disruptive excitations. Here, an estimate is provided of this gap as a function of computer size. We then address the problem of detecting the output of a ground state quantum computer. It is shown that the exponential detection difficulties that appear to be present at first can be overcome in a straightforward manner by small design changes.

Ari Mizel; M. W. Mitchell; Marvin L. Cohen

2000-07-02T23:59:59.000Z

243

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

245

A note on classical ground state energies  

E-Print Network [OSTI]

The pair-specific ground state energy of Newtonian N-body systems grows monotonically in N. This furnishes a whole family of simple new tests for minimality of putative ground state energies obtained through computer experiments. Inspection of several publically available lists of such computer-experimentally obtained putative ground state energies has yielded several dozen instances which failed (at least) one of these tests. Although the correct ground state energy is not revealed by this method, it does yield a better upper bound on it than the experimentally found value whenever the latter fails a monotonicity test. The surveyed N-body systems include in particular N point charges with 2- or 3-dimensional Coulomb pair interactions, placed either on the unit 2-sphere or on a 2-torus (a.k.a. Thomson, Fekete, or Riesz problems).

Michael K. -H. Kiessling

2009-05-28T23:59:59.000Z

246

Commonality of ground systems in launch operations  

E-Print Network [OSTI]

NASA is examining the utility of requiring a certain degree of commonality in both flight and ground systems in the Constellation Program. While the benefits of commonality seem obvious in terms of minimizing upfront ...

Quinn, Shawn M

2008-01-01T23:59:59.000Z

247

Ground Water Protection Act (New Mexico)  

Broader source: Energy.gov [DOE]

The purpose of the Ground Water Protection Act is to provide substantive provisions and funding mechanisms to the extent that funds are available to enable the state to take corrective action at...

248

Building an entanglement measure on physical ground  

E-Print Network [OSTI]

We introduce on physical grounds a new measure of multipartite entanglement for pure states. The function we define is discriminant and monotone under LOCC and moreover can be expressed in terms of observables of the system.

D. Teresi; A. Napoli; A. Messina

2008-05-28T23:59:59.000Z

249

UMTRA Ground Water Project management action process document  

SciTech Connect (OSTI)

A critical U.S. Department of Energy (DOE) mission is to plan, implement, and complete DOE Environmental Restoration (ER) programs at facilities that were operated by or in support of the former Atomic Energy Commission (AEC). These facilities include the 24 inactive processing sites the Uranium Mill Tailings Radiation Control Act (UMTRCA) (42 USC Section 7901 et seq.) identified as Title I sites, which had operated from the late 1940s through the 1970s. In UMTRCA, Congress acknowledged the potentially harmful health effects associated with uranium mill tailings and directed the DOE to stabilize, dispose of, and control the tailings in a safe and environmentally sound manner. The UMTRA Surface Project deals with buildings, tailings, and contaminated soils at the processing sites and any associated vicinity properties (VP). Surface remediation at the processing sites will be completed in 1997 when the Naturita, Colorado, site is scheduled to be finished. The UMTRA Ground Water Project was authorized in an amendment to the UMTRCA (42 USC Section 7922(a)), when Congress directed DOE to comply with U.S. Environmental Protection Agency (EPA) ground water standards. The UMTRA Ground Water Project addresses any contamination derived from the milling operation that is determined to be present at levels above the EPA standards.

NONE

1996-03-01T23:59:59.000Z

250

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

251

Ground Source Heat Pump System Data Analysis  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Source Heat Pump Subprogram Overview Ground

252

Ground-state energy of pionic hydrogen to one loop  

E-Print Network [OSTI]

We investigate the ground-state energy of the pi- p atom (pionic hydrogen) in the framework of QCD+QED. In particular, we evaluate the strong energy-level shift. We perform the calculation at next-to-leading order in the low-energy expansion in the framework of the relevant effective field theory. The result provides a relation between the strong energy shift and the pion-nucleon S-wave scattering lengths - evaluated in pure QCD - at next-to-leading order in isospin breaking and in the low-energy expansion. We compare our result with available model calculations.

J. Gasser; M. A. Ivanov; E. Lipartia; M. Mojzis; A. Rusetsky

2002-08-16T23:59:59.000Z

253

Ground water protection management program plan  

SciTech Connect (OSTI)

U.S. Department of Energy (DOE) Order 5400.1 requires the establishment of a ground water protection management program to ensure compliance with DOE requirements and applicable federal, state, and local laws and regulations. The Uranium Mill Tailings Remedial Action (UMTRA) Project Office was prepared this Ground Water Protection Management Program Plan (ground water protection plan) whose scope and detail reflect the program`s significance and address the seven activities required in DOE Order 5400.1, Chapter III, for special program planning. This ground water protection plan highlights the methods designed to preserve, protect, and monitor ground water resources at UMTRA Project processing and disposal sites. The plan includes an overview of the remedial action status at the 24 designated processing sites and identifies technical guidance documents and site-specific documents for the UMTRA Project ground water protection management program. In addition, the plan addresses the general information required to develop a water resources protection strategy at the permanent disposal sites. Finally, the plan describes ongoing activities that are in various stages of development at UMTRA Project sites.

Not Available

1994-02-01T23:59:59.000Z

254

MODELING, VERIFICATION AND OPTIMIZATION OF HYBRID GROUND SOURCE HEAT PUMP  

E-Print Network [OSTI]

MODELING, VERIFICATION AND OPTIMIZATION OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS IN ENERGYPLUS, VERIFICATION AND OPTIMIZATION OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS IN ENERGYPLUS Thesis Approved by: Dr.................................................................................................................... 16 MODELING OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS IN ENERGYPLUS

255

Journal of Educational Psychology Applying Grounded Coordination Challenges to Concrete  

E-Print Network [OSTI]

Journal of Educational Psychology Applying Grounded Coordination Challenges to Concrete Learning, M. I. (2013, August 19). Applying Grounded Coordination Challenges to Concrete Learning Materials.1037/a0034098 #12;Applying Grounded Coordination Challenges to Concrete Learning Materials: A Study

256

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

257

Fading of alizarin and related artists's pigments by atmospheric ozone: reaction products and mechanisms  

SciTech Connect (OSTI)

The colorants alizarin and Alizarin Crimson (a calcium-aluminum lake pigment) and their simple structural homologue anthraquinone were deposited on silica gel, cellulose, and Teflon substrates and exposed in the dark to ozone in purified air (approx.0.4 ppm O/sub 3/ for 95 days and approx.10 ppm O/sub 3/ for 18-80 h). Exposed and control samples were analyzed by mass spectrometry. Alizarin Crimson reacted with ozone on all substrates, yielding phthalic acid (major), benzoic acid (minor), and other minor and unidentified products. Anthraquinone did not react with ozone irrespective of conditions. Alizarin did not react on Teflon or cellulose but reacted on silica gel to yield phthalic acid (major) and other products. A chemical mechanism responsible for the fading of these alizarin-related colorants by ozone is suggested that is consistent with the products distribution, the observed reactivity sequence, and the observed substrate-specific effects. The possible application of this work to predicting the ozone fastness of other alizarin-related pigments is discussed briefly. 33 references, 5 figures.

Grosjean, D.; Whitmore, P.M.; De Moor, C.P.; Cass, G.R.; Druzik, J.R.

1987-07-01T23:59:59.000Z

258

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

259

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...

260

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

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

Department of Veterans Affairs, FONSI - Ground mounted solar...  

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

Ground mounted solar photovoltaic power at San Joaquin National Cemetery Department of Veterans Affairs, FONSI - Ground mounted solar photovoltaic power at San Joaquin National...

262

Data Analysis from Ground Source Heat Pump Demonstration Projects...  

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

Analysis from Ground Source Heat Pump Demonstration Projects Data Analysis from Ground Source Heat Pump Demonstration Projects Comparison of building energy use before and after...

263

China's Evolving Defense Economy: A PLA Ground Force Perspective  

E-Print Network [OSTI]

s Evolving Defense Economy: A PLA Ground Force PerspectivePeople’s Liberation Army (PLA) doctrinal developments,modernization of the PLA ground forces have incrementally

COOPER, Cortez A.

2013-01-01T23:59:59.000Z

264

A model of ATL ground motion for storage rings  

E-Print Network [OSTI]

A MODEL OF ATL GROUND MOTION FOR STORAGE RINGS A. WolskiMODEL OF ATL GROUND MOTION FOR STORAGE RINGS* A. Wolski # ,

Wolski, Andrzej; Walker, Nicholas J.

2003-01-01T23:59:59.000Z

265

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...

266

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

267

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

268

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

269

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

270

An examination of utility emissions contributions to elevated ozone concentrations in the Chicago area  

SciTech Connect (OSTI)

In order to reduce the pollutant load to the atmosphere and subsequent damaging effects, Titles I and IV of the Clean Air Act Amendments of 1990 (CAAAs) require reductions in emissions of sulfur dioxide (SO{sub 2}), nitrogen oxides (NO{sub x}), and volatile organic compounds (VOCs). Title IV is aimed at reducing acidic deposition and requires utilities to reduce SO{sub 2} and NO{sub x} emissions to specified levels. As a consequence of this, many utilities will have to install SO{sub 2} and NO{sub x} control technologies. Title I is concerned with bringing regions into compliance with the National Ambient Air Quality Standards (NAAQS) for the criteria pollutants, among which is ozone (O{sub 3}). The NAAQS for O{sub 3} is 120 ppb (parts per billion by volume) hourly average concentration, not to be exceeded four times in three years. O{sub 3} is a secondary pollutant formed in the atmosphere when NO{sub x} and VOCs react together in the presence of sunlight. Utilities are a significant source of NO{sub x} and an unimportant source of VOCs. In the past, O{sub 3} control strategy has focused on reducing VOC emissions because of the possibility that reducing NO{sub x} actually might make O{sub 3} concentrations higher. However, this approach has not worked, perhaps because of underestimation of natural and manmade VOC emissions and transport of O{sub 3} from other regions. Computer modeling has shown that for many highly polluted areas massive NO{sub x} reductions may be necessary in addition to or in place of VOC controls. Utilities are a potential source of these NO{sub x} reductions.

Fernau, M.E.; Guziel, K.A.; South, D.W.

1993-05-01T23:59:59.000Z

271

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 selection of materials for ground support that will function throughout the preclosure period. The Development Plan (DP) for this analysis is given in CRWMS M&O (Civilian Radioactive Waste Management System Management and Operating Contractor) (1999a). The candidate materials for ground support are steel (carbon steel, ductile cast iron, galvanized steel, and stainless steel, etc.) and cement. Steel will mainly be used for steel sets, lagging, channels, rock bolts, and wire mesh. Cement usage is only considered in the case of grouted rock bolts. The candidate materials for the invert structure are steel and crushed rock ballast. The materials shall be evaluated for the repository emplacement drift environment under a specific thermal loading condition based on the proposed License Application Design Selection (LADS) design. The analysis consists of the following tasks: (1) Identify factors affecting the longevity of ground control materials for use in emplacement drifts. (2) Review existing documents concerning behavior of candidate ground control materials during the preclosure period. The major criteria to be considered for steel are mechanical and thermal properties, and durability, of which corrosion is the most important concern. (3) Evaluate the available results and develop recommendations for material(s) to be used.

D. Tang

2000-01-07T23:59:59.000Z

272

Collection of liquid from below-ground location  

DOE Patents [OSTI]

A method is described for 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. 3 figs.

Phillips, S.J.; Alexander, R.G.

1995-05-30T23:59:59.000Z

273

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

274

Mimicking Time Evolution within a Quantum Ground State: Ground-State Quantum Computation, Cloning, and Teleportation  

E-Print Network [OSTI]

Ground-state quantum computers mimic quantum mechanical time evolution within the amplitudes of a time-independent quantum state. We explore the principles that constrain this mimicking. A no-cloning argument is found to impose strong restrictions. It is shown, however, that there is flexibility that can be exploited using quantum teleportation methods to improve ground-state quantum computer design.

Ari Mizel

2003-12-09T23:59:59.000Z

275

The ground state energy at unitarity  

E-Print Network [OSTI]

We consider two-component fermions on the lattice in the unitarity limit. This is an idealized limit of attractive fermions where the range of the interaction is zero and the scattering length is infinite. Using Euclidean time projection, we compute the ground state energy using four computationally different but physically identical auxiliary-field methods. The best performance is obtained using a bounded continuous auxiliary field and a non-local updating algorithm called hybrid Monte Carlo. With this method we calculate results for 10 and 14 fermions at lattice volumes 4^3, 5^3, 6^3, 7^3, 8^3 and extrapolate to the continuum limit. For 10 fermions in a periodic cube, the ground state energy is 0.292(12) times the ground state energy for non-interacting fermions. For 14 fermions the ratio is 0.329(5).

Dean Lee

2008-07-28T23:59:59.000Z

276

Selected ground-water data for Yucca Mountain region, southern Nevada and eastern California, through December 1996  

SciTech Connect (OSTI)

The US Geological Survey, in support of the US Department of Energy, Yucca Mountain Site Characterization Project, collects, compiles, and summarizes hydrologic data in the Yucca Mountain region. The data are collected to allow assessments of ground-water resources during studies to determine the potential suitability of Yucca Mountain for storing high-level nuclear waste. Data on ground-water levels at 36 sites, ground-water discharge at 6 sites, and ground-water withdrawals within Crater Flat, Jackass Flats, Mercury Valley, and the Amargosa Desert are presented for calendar year 1996. Data collected prior to 1996 are graphically presented and data collected by other agencies (or as part of other programs) are included to further indicate variations of ground-water levels, discharges, and withdrawals through time. A statistical summary of ground-water levels at seven wells in Jackass Flats is presented to indicate potential effects of ground-water withdrawals in support of US Department of Energy activities near Yucca Mountain. The statistical summary includes the number of measurements, the maximum, minimum, and median water-level altitudes, and the average deviation of measured water-level altitudes for selected baseline periods and for calendar years 1992--96. At two water-supply wells and a nearby observation well, median water levels for calendar year 1996 were slightly lower (0.3 to 0.4 foot) than for the respective baseline periods. At four other wells in Jackass Flats, median water levels for 1996 were unchanged, slightly lower (0.2 foot), and slightly higher (0.2 and 0.7 foot) than for the respective baseline periods.

LaCamera, R.J.; Locke, G.L.

1997-12-31T23:59:59.000Z

277

Ground Control for Emplacement Drifts for SR  

SciTech Connect (OSTI)

This analysis demonstrates that a satisfactory ground control system can be designed for the Yucca Mountain site, and provides the technical basis for the design of ground support systems to be used in repository emplacement and non-emplacement drifts. The repository ground support design was based on analytical methods using acquired computer codes, and focused on the final support systems. A literature review of case histories, including the lessons learned from the design and construction of the ESF, the studies on the seismic damages of underground openings, and the use of rock mass classification systems in the ground support design, was conducted (Sections 6.3.4 and 6.4). This review provided some basis for determining the inputs and methodologies used in this analysis. Stability of the supported and unsupported emplacement and non-emplacement drifts was evaluated in this analysis. The excavation effects (i.e., state of the stress change due to excavation), thermal effects (i.e., due to heat output from waste packages), and seismic effects (i.e., from potential earthquake events) were evaluated, and stress controlled modes of failure were examined for two in situ stress conditions (k_0=0.3 and 1.0) using rock properties representing rock mass categories of 1 and 5. Variation of rock mass units such as the non-lithophysal (Tptpmn) and lithophysal (Tptpll) was considered in the analysis. The focus was on the non-lithophysal unit because this unit appears to be relatively weaker and has much smaller joint spacing. Therefore, the drift stability and ground support needs were considered to be controlled by the design for this rock unit. The ground support systems for both emplacement and non-emplacement drifts were incorporated into the models to assess their performance under in situ, thermal, and seismic loading conditions. Both continuum and discontinuum modeling approaches were employed in the analyses of the rock mass behavior and in the evaluation of the stability of the openings. No credit or account was given for the initial ground support in modeling the final ground support systems for both emplacement and non-emplacement drifts in this analysis.

Y. Sun

2000-04-07T23:59:59.000Z

278

Abundance of narwhals (Monodon monoceros) on the hunting grounds in Greenland  

E-Print Network [OSTI]

Abundance of narwhals (Monodon monoceros) on the hunting grounds in Greenland M. P. HEIDE Greenland Institute of Natural Resources, Bok 570, 3900 Nuuk, Greenland (MPH, KLL, RGH) RUWPA, University to subsistence hunting by Inuit in Greenland and Canada. Scientific advice on the sustainable levels of removals

Laidre, Kristin L.

279

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

280

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

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

Evaluation of ground-based remotely sensed liquid water cloud properties using shortwave radiation measurements  

E-Print Network [OSTI]

properties of low level water clouds. A number of remote sensing retrieval techniques provide either radar-only retrie- vals or combine millimeter-wave radar with microwave radiometer measurements (Frisch et al., 1995 radiation measurements from the ground. The remote sensing observations of radar reflectivity, microwave

Haak, Hein

282

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

283

Selenium in Oklahoma ground water and soil  

SciTech Connect (OSTI)

Selenium with a consumption of 2 liters per day (5). The objectives of this study are: (1) to determine the concentrations of Se in Oklahoma ground water and soil samples. (2) to map the geographical distribution of Se species in Oklahoma. (3) to relate groundwater depth, pH and geology with concentration of Se.

Atalay, A.; Vir Maggon, D.

1991-03-30T23:59:59.000Z

284

Photovoltaic module mounting clip with integral grounding  

DOE Patents [OSTI]

An electrically conductive mounting/grounding clip, usable with a photovoltaic (PV) assembly of the type having an electrically conductive frame, comprises an electrically conductive body. The body has a central portion and first and second spaced-apart arms extending from the central portion. Each arm has first and second outer portions with frame surface-disrupting element at the outer portions.

Lenox, Carl J.

2010-08-24T23:59:59.000Z

285

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

286

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

287

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

288

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

289

Kudzu (Pueraria montana) invasion doubles emissions of nitric oxide and increases ozone pollution  

E-Print Network [OSTI]

Kudzu (Pueraria montana) invasion doubles emissions of nitric oxide and increases ozone pollution) The nitrogen-fixing legume kudzu (Pueraria montana) is a wide- spread invasive plant in the southeastern United the effects of kudzu invasions on soils and trace N gas emissions at three sites in Madison County, Georgia

Mickley, Loretta J.

290

Effects of Ion-Exchange Treatment on Bromate Formation and Oxidation Efficiency during Ozonation  

E-Print Network [OSTI]

water treatment. In this study, we applied several different ion exchangers (i.e., anion exchange resins technologies in advanced drinking water treatment processes along with activated carbon treatment. Ozonation), chlorine-resistant pathogenic organisms, and various micropollutants in drinking water treatment. In Japan

Takada, Shoji

291

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

292

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

293

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

294

Synthesis of nickel–zinc ferrite magnetic nanoparticle and dye degradation using photocatalytic ozonation  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? Nickel–zinc ferrite magnetic nanoparticle (NZFMN) was synthesized and characterized. ? Dye degradation by photocatalytic ozonation using NZFMN was studied. ? Formate, acetate and oxalate were detected as dominant dye degradation aliphatic intermediates. ? Nitrate, sulfate and chloride ions were detected as mineralization products of dyes. ? NZFMN was an effective magnetic nanocatalyst to degrade dyes. -- Abstract: In this paper, nickel–zinc ferrite magnetic nanoparticle (NZFMN) was synthesized and its dye degradation ability using photocatalytic ozonation was investigated. The NZFMN was characterized by X-ray diffraction (XRD), scanning electron microscopic (SEM), Fourier transforms infrared (FTIR) and alternative gradient force magnetometer (AGFM). Reactive Red 198 (RR198) and Direct Green 6 (DG6) were used as dye models. UV–vis and ion chromatography (IC) analyses were employed to study dye degradation. The effects of operational parameters on decolorization such as NZFMN dosage, dye concentration, salt and pH were studied. RR198 and DG6 were completely decolorized (100%) by photocatalytic ozonation using NZFMN. Formate, acetate and oxalate anions were detected as dominant aliphatic intermediates. Nitrate, sulfate and chloride ions were detected as mineralization products of dyes. Results showed that the photocatalytic ozonation using NZFMN was a very effective method for dye degradation.

Mahmoodi, Niyaz Mohammad, E-mail: mahmoodi@icrc.ac.ir [Department of Environmental Research, Institute for Color Science and Technology, Tehran (Iran, Islamic Republic of); Bashiri, Marziyeh; Moeen, Shirin Jebeli [Department of Environmental Research, Institute for Color Science and Technology, Tehran (Iran, Islamic Republic of)] [Department of Environmental Research, Institute for Color Science and Technology, Tehran (Iran, Islamic Republic of)

2012-12-15T23:59:59.000Z

295

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

296

Growth and crown architecture of two aspen genotypes exposed to interacting ozone and carbon dioxide  

E-Print Network [OSTI]

Growth and crown architecture of two aspen genotypes exposed to interacting ozone and carbon to O3, atmos- pheric carbon dioxide (CO2) concentrations are increasing rapidly (Keeling et al., 1995 concentrations may offset the detrimental effects of increasing O3 (Allen, 1990). Some studies have shown that CO

297

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 Subchapter 8.7). However, in-duct air cleaners including electronic air cleaners, electrostatic precipitators of an ozone analyzer. Viner et al. (1992) studied commercial in-duct electrostatic precipitators and observed

Siegel, Jeffrey

298

Earth'sFuture Stratospheric ozone response to a solar irradiance reduction  

E-Print Network [OSTI]

the stratospheric ozone response to a proposed geoengineering activity wherein a reduced top-of-atmosphere (TOA to the Geoengineering Model Intercomparison Project (GeoMIP) Experiment G1. Three primary simulations were completed geoengineering activities have been proposed as possible techniques to help counteract the ongoing climate change

Jackman, Charles H.

299

Stratospheric ozone response to sulfate geoengineering: Results from the Geoengineering Model  

E-Print Network [OSTI]

Stratospheric ozone response to sulfate geoengineering: Results from the Geoengineering Model for Atmospheric Research, Boulder, Colorado, USA Abstract Geoengineering with stratospheric sulfate aerosols has the experiments G3 and G4 of the Geoengineering Model Intercomparison Project. On average, the models simulate

Robock, Alan

300

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

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

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

302

PublishedbyManeyPublishing(c)IOMCommunicationsLtd Influence of UV irradiation and ozone on  

E-Print Network [OSTI]

of purified humid air containing predetermined quantities of SO2, NO2, H2S, Cl2, HCI, NH3 and O3. This lackPublishedbyManeyPublishing(c)IOMCommunicationsLtd Influence of UV irradiation and ozone by ultraviolet (UV) light was investigated. A modified coulometric reduction technique was used, substituting

303

Earth'sFuture Multidecadal global cooling and unprecedented ozone loss  

E-Print Network [OSTI]

Earth'sFuture Multidecadal global cooling and unprecedented ozone loss following a regional nuclear inertia and albedo effects in the ocean and expanded sea ice. The combined cooling and enhanced UV would put significant pressures on global food supplies and could trigger a global nuclear famine. Knowledge

Robock, Alan

304

Interactions of ozone and pathogens on the surface structure of Norway spruce needles  

E-Print Network [OSTI]

Interactions of ozone and pathogens on the surface structure of Norway spruce needles K. Ojanperä S and pathogens. It also acts as a barrier to air pollutants (Jeffree, 1986). The epicuticular wax of Norway and then a plate-like wax structure (Sauter and Voss, 1986). The life span of healthy needles of Norway spruce

Paris-Sud XI, Université de

305

Characterization and correction of Global Ozone Monitoring Experiment 2 ultraviolet measurements and application  

E-Print Network [OSTI]

analysis indicates that reflectance degradation began at the beginning of the mission; the reflectance degrades by 15% around 290 nm and by 2.2% around 325 nm from 2007 through 2009. Degradation shows of radiance in the ultraviolet (UV) region is essential for retrievals of ozone profiles especially

Chance, Kelly

306

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.

307

Thickness influence on surface morphology and ozone sensing properties of nanostructured ZnO transparent  

E-Print Network [OSTI]

, 71004 Heraklion, Crete, Greece Available online 19 January 2006 Abstract Transparent zinc oxide (Zn Keywords: Zinc oxide; PLD; AFM; Ozone 1. Introduction Zinc oxide (ZnO) is an n-type semiconductor devices [3], varistors, planar optical waveguides [4], transparent electrodes [5,6], ultraviolet

308

Author's personal copy Digestive utilization of ozone-exposed forage by rabbits (Oryctolagus cuniculus)  

E-Print Network [OSTI]

Author's personal copy Digestive utilization of ozone-exposed forage by rabbits (Oryctolagus Digestibility Forage quality Herbivore nutrition Phenolics Rabbits Southern Piedmont a b s t r a c t A mixture) in a digestibility experiment. Forages and feed refusals were analyzed for concentrations of total cell wall

Ditchkoff, Steve

309

The Economic Impact of Global Climate and Tropospheric Ozone on World Agricultural Production  

E-Print Network [OSTI]

by Xiaodu (Dulles) Wang Bachelor of Science with majors in Electrical Engineering, Economics and ComputerThe Economic Impact of Global Climate and Tropospheric Ozone on World Agricultural Production Engineering The Johns Hopkins University, June 2003 Submitted to the Engineering Systems Division

310

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

311

Transport of Asian ozone pollution into surface air over the western United States in spring  

E-Print Network [OSTI]

Transport of Asian ozone pollution into surface air over the western United States in spring Meiyun the mechanisms involved in the transport of Asian pollution plumes into western U.S. surface air through, including the interleaving and mixing of Asian pollution and stratospheric air associated with complex

312

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

313

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

314

Cluster Structures of the Ground and Excited States of 12Be Studied with Antisymmetrized Molecular Dynamics  

E-Print Network [OSTI]

The structures of the ground and excited states of 12Be were studied with antisymmetrized molecular dynamics. The ground state was found to be a state with a developed 2-alpha core with two neutrons occupying the intruder orbits. The energy levels of the newly measured spin-assigned states were described well, except for the $1^-_1$ state. The calculations indicated that many exotic cluster structures appear in the low-energy region. The widths concerning alpha and 6He decays were discussed by using reduced width amplitudes.

Yoshiko Kanada-En'yo; Hisashi Horiuchi

2003-04-28T23:59:59.000Z

315

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

316

SRS Burial Ground Complex: Remediation in Progress  

SciTech Connect (OSTI)

Closure of the various areas in the Burial Ground Complex (BGC) represents a major step in the reduction of risk at the Savannah River Site (SRS) and a significant investment of resources. The Burial Ground Complex occupies approximately 195 acres in the central section of the SRS. Approximately 160 acres of the BGC consists of hazardous and radioactive waste disposal sites that require remediation. Of these source acres, one-third have been remediated while two-thirds are undergoing interim or final action. These restoration activities have been carried out in a safe and cost effective manner while minimizing impact to operating facilities. Successful completion of these activities is in large part due to the teamwork demonstrated by the Department of Energy, contractor/subcontractor personnel, and the regulatory agencies. The experience and knowledge gained from the closure of these large disposal facilities can be used to expedite closure of similar facilities.

Griffin, M. [Westinghouse Savannah River Company, AIKEN, SC (United States); Crapse, B.; Cowan, S.

1998-01-21T23:59:59.000Z

317

Compression of ground-motion data  

SciTech Connect (OSTI)

Ground motion data has been recorded for many years at Nevada Test Site and is now stored on thousands of digital tapes. The recording format is very inefficient in terms of space on tape. This report outlines a method to compress the data onto a few hundred tapes while maintaining the accuracy of the recording and allowing restoration of any file to the original format for future use. For future digitizing a more efficient format is described and suggested.

Long, J.W.

1981-04-01T23:59:59.000Z

318

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.

319

Ground motion: An introduction for accelerator builders  

SciTech Connect (OSTI)

In this seminar we will review some of the characteristics of the major classes of ground motion in order to determine whether their effects must be considered or place fundamental limits on the sitting and/or design of modern storage rings and linear colliders. The classes discussed range in frequency content from tidal deformation and tectonic motions through earthquakes and microseisms. Countermeasures currently available are briefly discussed.

Fischer, G.E.

1992-02-01T23:59:59.000Z

320

Ground Electromagnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:Greer County is a county in Oklahoma.Groom Energy SolutionsGround

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

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

322

A new phenomenological formula for ground state binding energies  

E-Print Network [OSTI]

A phenomenological formula based on liquid drop model has been proposed for ground state binding energies of nuclei. The effect due to bunching of single particle levels has been incorporated through a term resembling the one-body Hamiltonian. The effect of n-p interaction has been included through a function of valence nucleons. A total of 50 parameters has been used in the present calculation. The r.m.s. deviation for the binding energy values for 2140 nuclei comes out to be 0.376 MeV, and that for 1091 alpha decay energies is 0.284 MeV. The correspondence with the conventional liquid drop model is discussed.

G. Gangopadhyay

2010-07-09T23:59:59.000Z

323

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

324

Concurrent Circuit-Level/System-Level Optimization of a 24 GHz Mixer for Automotive Applications Using a Hybrid  

E-Print Network [OSTI]

radar sensor can easily measure both the true ground speed of the vehicles and the relative speedConcurrent Circuit-Level/System-Level Optimization of a 24 GHz Mixer for Automotive Applications mixer is presented. The benchmarking geometry is a low-cost mixer for a Doppler Radar Sensor, built

Tentzeris, Manos

325

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

326

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),

327

Re-evaluation of total and Umkehr ozone data from NOAA-CMDL Dobson spectrophotometer observatories. Final report  

SciTech Connect (OSTI)

This report describes work to improve the quality of total ozone and Umkehr data obtained in the past at the NOAA Climate Monitoring and Diagnostics Laboratory and the Dobson spectrophotometer ozone observatories. The authors present results of total ozone data re-evaluations for ten stations: Byrd, Antarctica; Fairbanks, Alaska; Hallett, Antarctica; Huancayo, Peru; Haute Provence, France; Lauder, New Zealand; Perth, Australia; Poker Flat, Alaska; Puerto Montt, Chile; and South Pole, Antarctica. The improved data will be submitted in early 1996 to the World Meteorological Organization (WMO) World Ozone Data Center (WODC), and the Atmospheric Environment Service for archiving. Considerable work has been accomplished, also, in reevaluating Umkehr data from seven of the stations, viz., Huancayo, Haute Provence, Lauder, Perth, Poker Flat, Boulder, Colorado; and Mauna Loa, Hawaii.

Komhyr, W.D.; Quincy, D.M.; Grass, R.D.; Koenig, G.L. [Univ. of Colorado, Boulder, CO (United States)] [Univ. of Colorado, Boulder, CO (United States); [National Oceanic and Atmospheric Administration, Boulder, CO (United States). Climate Monitoring and Diagnostics Lab.

1995-12-01T23:59:59.000Z

328

Past and Future Effects of Ozone on Net Primary Production and Carbon Sequestration Using a Global Biogeochemical Model  

E-Print Network [OSTI]

Exposure of plants to ozone inhibits photosynthesis and therefore reduces vegetation production and carbon sequestration. Simulations with the Terrestrial Ecosystem Model (TEM) for the historical period (1860-1995) show ...

Felzer, Benjamin Seth.

329

Bioremediation of ground water contaminants at a uranium mill tailings site  

SciTech Connect (OSTI)

Ground water contaminated with uranium from milling operations must be remediated to reduce the migration of soluble toxic compounds. At the mill tailings site near Tuba City, Arizona (USA) the approach is to employ bioremediation for in situ immobilization of uranium by bacterial reduction of uranyl, U(VI), compounds to uraninite, U(IV). In this initial phase of remediation, details are provided to indicate the magnitude of the contamination problem and to present preliminary evidence supporting the proposition that bacterial immobilization of uranium is possible. Additionally, consideration is given to contaminating cations and anions that may be at toxic levels in ground water at this uranium mill tailing site and detoxification strategies using bacteria are addressed. A model concept is employed so that results obtained at the Tuba City site could contribute to bioremediation of ground water at other uranium mill tailings sites.

Barton, L.L.; Nuttall, H.E.; Thomson, B.M.; Lutze, W. [Univ. of New Mexico, Albuquerque, NM (United States)

1995-12-31T23:59:59.000Z

330

Bounds on the energy densities of ground states on static spacetimes of compact objects  

E-Print Network [OSTI]

In this paper we investigate quantum fields propagating on given, static, spherically symmetric spacetimes, which are isometric to a part of the Schwarzschild spacetime. Without specifying the internal geometry we show, that there exist bounds on the energy densities of ground states of a quantum scalar field on such spacetimes. The bounds (from above and below) come from the so-called Quantum Energy Inequalities, and are centered around the energy density of the Boulware state (the ground state for Schwarzschild spacetime). The specific value of the bound from below depends critically on the distance $\\ell$ from the horizon, where the spacetimes of compact objects cease to be isometric to the Schwarzschild spacetime. In the limit of small $\\ell$ we prove, that the energy densities of ground states cannot be below the Boulware level.

P. Marecki

2005-07-20T23:59:59.000Z

331

Pulmonary function and symptom responses after 6. 6-hour exposure to 0. 12-ppm ozone with moderate exercise (journal version)  

SciTech Connect (OSTI)

Episodes occasionally occur when ambient ozone (O/sub 3/) levels remain at or near 0.12 ppm for more than 6 h. The hypothesis that prolonged exposure to 0.12 ppm O/sub 3/ would result in progressively larger changes in respiratory function and symptoms over time was tested. Ten nonsmoking males (18-35 yr) were exposed once to clear air (CA) and once to 0.12 pp, O/sub 3/ for 6.75 h. Exposures consisted of six 50-min exercise periods, each followed by 10-min rest and measurement; a 45-min lunch period followed the third exercise period. Exercise ventilation averaged approximately 40 1/min. Forced expiratory and inspiratory spirometry and respiratory symptoms were measured prior to exposure and after each exercise. Increases in the symptom ratings of cough and pain on deep inspiration were observed with O/sub 3/ exposure but not with CA. Airway reactivity to methacholine was approximately doubled following O/sub 3/ exposure. Spirometry results indicate that prolonged exposure to 0.12 ppm O/sub 3/ results in a marked increase in non-specific airway reactivity and progressive changes in respiratory function.

Folinsbee, L.J.; Horstman, D.H.; McDonnell, W.F.

1988-01-01T23:59:59.000Z

332

Ground-Coupled Heat Pump Applications and Case Studies  

E-Print Network [OSTI]

The paper presents an overview of ground loops for space-conditioning heat pumps, hot water, ice machines, and water-cooled refrigeration in residential and commercial applications. In Louisiana, a chain of hamburger drive-ins uses total ground...

Braud, H. J.

1989-01-01T23:59:59.000Z

333

Factors controlling tungsten concentrations in ground water, Carson Desert, Nevada  

E-Print Network [OSTI]

Factors controlling tungsten concentrations in ground water, Carson Desert, Nevada Ralph L. Seiler sources. Tungsten concentrations in 100 ground water samples from all aquifers used as drinking water indicates that W exhibits Tungsten con- centrations are strongly and positively correlated

334

Talking In Circles: Designing A Spatially-Grounded Audioconferencing Environment  

E-Print Network [OSTI]

to become a popular medium for social interaction. Traditional chat environments, however, are limitedTalking In Circles: Designing A Spatially-Grounded Audioconferencing Environment Roy Rodenstein, a multimodal audioconferencing environment whose novel design emphasizes spatial grounding with the aim

335

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

336

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

337

Surfactants containing radioactive run-offs: Ozone treatment, influence on nuclear power plants water waste special treatment  

SciTech Connect (OSTI)

The authors discuss the problems encountered in the efficiency of radioactive waste treatment in nuclear power plants in Kursk. The ozonization of aqueous solutions of surfactants was carried out in the laboratory`s ozonization system. The surfactants which are discharged to the ion exchangers deteriorate resins, clog up the ion exchangers, and decrease filtration velocity. Therefore, this investigation focused on finding a method to increase the efficiency of this treatment process.

Prokudina, S.A.; Grachok, M.A. [Belarussian State Economic Univ., Minsk (Belarus)

1993-12-31T23:59:59.000Z

338

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.

339

Cooperative heat transfer and ground coupled storage system  

DOE Patents [OSTI]

A cooperative heat transfer and ground coupled storage system wherein collected solar heat energy is ground stored and permitted to radiate into the adjacent ground for storage therein over an extended period of time when such heat energy is seasonally maximally available. Thereafter, when said heat energy is seasonally minimally available and has propagated through the adjacent ground a substantial distance, the stored heat energy may be retrieved by a circumferentially arranged heat transfer means having a high rate of heat transfer.

Metz, Philip D. (Rocky Point, NY)

1982-01-01T23:59:59.000Z

340

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

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

Membrane contactor/separator for an advanced ozone membrane reactor for treatment of recalcitrant organic pollutants in water  

SciTech Connect (OSTI)

An advanced ozone membrane reactor that synergistically combines membrane distributor for ozone gas, membrane contactor for pollutant adsorption and reaction, and membrane separator for clean water production is described. The membrane reactor represents an order of magnitude improvement over traditional semibatch reactor design and is capable of complete conversion of recalcitrant endocrine disrupting compounds (EDCs) in water at less than three minutes residence time. Coating the membrane contactor with alumina and hydrotalcite (Mg/Al=3) adsorbs and traps the organics in the reaction zone resulting in 30% increase of total organic carbon (TOC) removal. Large surface area coating that diffuses surface charges from adsorbed polar organic molecules is preferred as it reduces membrane polarization that is detrimental to separation. - Graphical abstract: Advanced ozone membrane reactor synergistically combines membrane distributor for ozone, membrane contactor for sorption and reaction and membrane separator for clean water production to achieve an order of magnitude enhancement in treatment performance compared to traditional ozone reactor. Highlights: Black-Right-Pointing-Pointer Novel reactor using membranes for ozone distributor, reaction contactor and water separator. Black-Right-Pointing-Pointer Designed to achieve an order of magnitude enhancement over traditional reactor. Black-Right-Pointing-Pointer Al{sub 2}O{sub 3} and hydrotalcite coatings capture and trap pollutants giving additional 30% TOC removal. Black-Right-Pointing-Pointer High surface area coating prevents polarization and improves membrane separation and life.

Chan, Wai Kit, E-mail: kekyeung@ust.hk [Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon (Hong Kong); Joueet, Justine; Heng, Samuel; Yeung, King Lun [Department of Chemical and Biomolecular Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon (Hong Kong); Schrotter, Jean-Christophe [Water Research Center of Veolia, Anjou Recherche, Chemin de la Digue, BP 76. 78603, Maisons Laffitte, Cedex (France)

2012-05-15T23:59:59.000Z

342

On Termination and Derivation Lengths for Ground Rewrite Systems  

E-Print Network [OSTI]

On Termination and Derivation Lengths for Ground Rewrite Systems Dieter Hofbauer 1 Universit¨at GH@theory.informatik.uni­kassel.de Abstract. It is shown that for terminating ground term rewrite systems the length of derivations a suitable interpretation into the natural numbers. Terminating ground systems are not necessarily

Giesl, Juergen

343

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

344

Basic Ground-Water Hydrology By RALPH C. HEATH  

E-Print Network [OSTI]

#12;Basic Ground-Water Hydrology By RALPH C. HEATH Prepared in cooperation with the North Carolina., 1983, Basic ground-water hydrology: U .S. Geological Survey Water-Supply Paper 2220, 86 p. Library of Congress Cataloging-in-Publications Data Heath, Ralph C . Basic ground-water hydrology (Geological Survey

Sohoni, Milind

345

ADVANCES IN MODELING OF GROUND-SOURCE HEAT  

E-Print Network [OSTI]

ADVANCES IN MODELING OF GROUND-SOURCE HEAT PUMP SYSTEMS By ANDREW D. CHIASSON Bachelor of Applied 1999 #12;ii ADVANCES IN MODELING OF GROUND-SOURCE HEAT PUMP SYSTEMS Thesis Approved: Thesis Adviser..............................................................................................................1 1.1. Overview of Ground-Source Heat Pump Systems ..............................................1 1

346

DESIGN OF AN EXPERIMENTAL FACILITY FOR HYBRID GROUND SOURCE HEAT  

E-Print Network [OSTI]

DESIGN OF AN EXPERIMENTAL FACILITY FOR HYBRID GROUND SOURCE HEAT PUMP SYSTEMS By SHAWN ALEX HERN.1 HYBRID GROUND SOURCE HEAT PUMP SYSTEM DESIGN........................................2-3 2.1.1 Design...............................................................................2-5 2.2 HYBRID GROUND SOURCE HEAT PUMP SYSTEM SIMULATION................................2-9 3

347

APPLICATIONS OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS TO  

E-Print Network [OSTI]

APPLICATIONS OF HYBRID GROUND SOURCE HEAT PUMP SYSTEMS TO BUILDINGS AND BRIDGE DECKS. By MAHADEVAN Chapter Page 1. Introduction 1.1. Overview of hybrid ground source heat pump systems 1.2. Literature review 1.3. Thesis objective and scope 2. Optimal sizing of hybrid ground source heat pump system

348

Regional Estimation of Total Recharge to Ground Water in Nebraska  

E-Print Network [OSTI]

)over long periods of time when the potential change in ground water storage becomes negligible compared storage other than discharge to streams. One such loss term is evapotranspiration (ET) from ground waterRegional Estimation of Total Recharge to Ground Water in Nebraska by Jozsef Szilagyi1m2,F. Edwin

Szilagyi, Jozsef

349

Materialized community ground models for large-scale earthquake simulation  

E-Print Network [OSTI]

Materialized community ground models for large-scale earthquake simulation Steven W. Schlosser to ground motion sim- ulations, in which ground model datasets are fully materi- alized into octress stored as a service techniques in which scientific computation and storage services become more tightly intertwined. 1

Shewchuk, Jonathan

350

DEVELOPMENTS IN GROUND WATER HYDROLOGY : AN OVERVIEW C. P. Kumar  

E-Print Network [OSTI]

. Surface water storage and ground water withdrawal are traditional engineering approaches which of storage and circulation as ground water. The large alluvial tract extending over 2000 km in length from which allows ground water storage in the weathered residium and its circulation in the underlying

Kumar, C.P.

351

Ground water elevation monitoring at the Uranium Mill Tailings Remedial Action Salt Lake City, Utah, Vitro processing site  

SciTech Connect (OSTI)

In February 1994, a ground water level monitoring program was begun at the Vitro processing site. The purpose of the program was to evaluate how irrigating the new golf driving range affected ground water elevations in the unconfined aquifer. The program also evaluated potential impacts of a 9-hole golf course planned as an expansion of the driving range. The planned golf course expansion would increase the area to be irrigated and, thus, the water that could infiltrate the processing site soil to recharge the unconfined aquifer. Increased water levels in the aquifer could alter the ground water flow regime; contaminants in ground water could migrate off the site or could discharge to bodies of surface water in the area. The potential effects of expanding the golf course have been evaluated, and a report is being prepared. Water level data obtained during this monitoring program indicate that minor seasonal mounding may be occurring in response to irrigation of the driving range. However, the effects of irrigation appear small in comparison to the effects of precipitation. There are no monitor wells in the area that irrigation would affect most; that data limitation makes interpretations of water levels and the possibility of ground water mounding uncertain. Limitations of available data are discussed in the conclusion.

NONE

1995-04-01T23:59:59.000Z

352

Status of the ground water flow model for the UMTRA Project, Shiprock, New Mexico, site  

SciTech Connect (OSTI)

A two-dimensional numerical model was constructed for the alluvial aquifer in the area of the Uranium Mill Tailings Remedial Action (UMTRA) Project Shiprock, New Mexico, site. This model was used to investigate the effects of various hydrologic parameters on the evolution of the ground water flow field. Results of the model are useful for defining uncertainties in the site conceptual model and suggesting data collection efforts to reduce these uncertainties. The computer code MODFLOW was used to simulate the two-dimensional flow of ground water in the alluvium. The escarpment was represented as a no-flow boundary. The San Juan River was represented with the MODFLOW river package. A uniform hydraulic conductivity distribution with the value estimated by the UMTRA Project Technical Assistance Contractor (TAC) and a uniform recharge distribution was used. Infiltration from the flowing artesian well was represented using the well package. The ground water flow model was calibrated to ground water levels observed in April 1993. Inspection of hydrographs shows that these levels are representative of typical conditions at the site.

Not Available

1995-01-01T23:59:59.000Z

353

Resonating Valence Bond Quantum Monte Carlo: Application to the ozone molecule  

E-Print Network [OSTI]

We study the potential energy surface of the ozone molecule by means of Quantum Monte Carlo simulations based on the resonating valence bond concept. The trial wave function consists of an antisymmetrized geminal power arranged in a single-determinant that is multiplied by a Jastrow correlation factor. Whereas the determinantal part incorporates static correlation effects, the augmented real-space correlation factor accounts for the dynamics electron correlation. The accuracy of this approach is demonstrated by computing the potential energy surface for the ozone molecule in three vibrational states: symmetric, asymmetric and scissoring. We find that the employed wave function provides a detailed description of rather strongly-correlated multi-reference systems, which is in quantitative agreement with experiment.

Azadi, Sam; Kühne, Thomas D

2015-01-01T23:59:59.000Z

354

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)

355

Photovoltaic module mounting clip with integral grounding  

DOE Patents [OSTI]

An electrically conductive mounting/grounding clip, for use with a photovoltaic assembly of the type having an electrically conductive frame, comprises an electrically conductive body. The body has a central portion and first and second spaced-apart arms extending generally perpendicular to the central portion. Each arm has an outer portion with each outer portion having an outer end. At least one frame surface-disrupting element is at each outer end. The central portion defines a plane with the frame surface-disrupting elements pointing towards the plane. In some examples each arm extends from the central portion at an acute angle to the plane.

Lenox, Carl J.

2008-10-14T23:59:59.000Z

356

Coal mine ground control. 3rd ed.  

SciTech Connect (OSTI)

The third edition not only completely revises and updates the original subject areas, but also is broadened to include a number of new topics such as high horizontal stresses, computer modeling, and highwall stability. The subject areas covered in this book define the current field of coal mine ground control, except for the recently emerging topic of mine seals and some conventional subjects such as coal/rock cutting and impoundment dams. It contains 1,134 references from all published sources, and archived since 1876.

Peng, S.S.

2008-09-15T23:59:59.000Z

357

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

358

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

359

Ground-Based Microwave Radiometer Measurements  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGetGraphene's 3DRise |EnergyVehicles andGround-Based

360

Ground Gravity Survey | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004)EnergyGround Gravity

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

Ground Magnetics (Nannini, 1986) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:Photon Place:Net Jump to: navigation,2004)EnergyGround

362

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

363

Past changes in the vertical distribution of ozone – Part 1: Measurement techniques, uncertainties and availability  

E-Print Network [OSTI]

, Germany 28Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto, Japan 29Association of International Research Initiatives for Environmental Studies, Tokyo, Japan 30Research Centre Jülich, Institute for Energy and Climate Research... Sciences, Göteborg, Sweden Published by Copernicus Publications on behalf of the European Geosciences Union. 1396 B. Hassler et al.: Ozone profile measurements 34Institut für Physik, Ernst-Moritz-Arndt-Universität Greifswald, Greifswald, Germany 35...

Hassler, B.; Petropavlovskikh, I.; Staehelin, J.; August, T.; Bhartia, P. K.; Clerbaux, C.; Degenstein, D.; Maziere, M. De; Dinelli, B. M.; Dudhia, A.; Dufour, G.; Frith, S. M.; Froidevaux, L.; Godin-Beekmann, S.; Granville, J.; Harris, N. R. P.; Hoppel, K.; Hubert, D.; Kasai, Y.; Kurylo, M. J.; Kyrola, E.; Lambert, J.-C.; Levelt, P. F.; McElroy, C. T.; McPeters, R. D.; Munro, R.; Nakajima, H.; Parrish, A.; Raspollini, P.; Remsberg, E. E.; Rosenlof, K. H.; Rozanov, A.; Sano, T.; Sasano, Y.; Shiotani, M.; Smit, H. G. J.; Stiller, G.; Tamminen, J.; Tarasick, D. W.; Urban, J.; van der A, R. J.; Veefkind, J. P.; Vigouroux, C.; von Clarmann, T.; von Savigny, C.; Walker, K. A.; Weber, M.; Wild, J.; Zawodny, J. M.

2014-05-21T23:59:59.000Z

364

An assessment of alternatives and technologies for replacing ozone- depleting substances at DOE facilities  

SciTech Connect (OSTI)

Title VI of the Clean Air Act, as amended, mandates a production phase-out for ozone-depleting substances (ODSs). These requirements will have a significant impact on US Department of Energy (DOE) facilities. Currently, DOE uses ODSs in three major activities: fire suppression (halon), refrigeration and cooling (chlorofluorocarbons [CFCs]), and cleaning that requires solvents (CFCs, methyl chloroform, and carbon tetrachloride). This report provides basic information on methods and strategies to phase out use of ODSs at DOE facilities.

Purcell, C.W.; Miller, K.B.; Friedman, J.R.; Rapoport, R.D.; Conover, D.R.; Hendrickson, P.L. [Pacific Northwest Lab., Richland, WA (United States); Koss, T.C. [USDOE Assistant Secretary for Environment, Safety, and Health, Washington, DC (United States). Office of Environmental Guidance

1992-10-01T23:59:59.000Z

365

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.

366

Detection of the 6 November 1997 Ground Level Event by Abe D. Falcone, for Milagro Collaboration  

E-Print Network [OSTI]

Collaboration University of New Hampshire, Space Science Center, Morse Hall, Durham, NH 03824 USA Abstract. Solar Energetic Particles (SEPs) with energies exceeding 10 GeV associated with the 6 November 1997 for observing very high energy gamma ray sources, can also be used to study the Sun. Milagrito, which operated

California at Santa Cruz, University of

367

Lot-level approaches to stormwater management are gaining ground. By Mary Catherine Hager  

E-Print Network [OSTI]

that are constructed near where the rain falls. They are designed to collect and soak up rainwater and capture, we view rainwater as a resource as opposed to a toxic waste product. We begin to see it as a vital on modifying flood-control approaches. #12;gardens detain or infiltrate rainwater in small depressions

Nassauer, Joan Iverson

368

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

369

Gait Transitions for Quasi-Static Hexapedal Locomotion on Level Ground  

E-Print Network [OSTI]

, and D. E. Koditschek Abstract As robot bodies become more capable, the motivation grows to better. This paper introduces a new formalism for coordination of periodic tasks, with specific application to gait transitions for a variety of useful gaits, shown via tests on a hexapedal robot. G. C. Haynes and D. E

Plotkin, Joshua B.

370

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

E-Print Network [OSTI]

for the free-stall dairy were determined to be 11.1 ±4.9 kg NH3 year-1 head-1 for summer season and 4.7± 4.9 kg NH3 year-1 head-1 for winter season. The estimated annual NH3 EF was 8.4 ±4.9 kg NH3 year-1 head-1 for this free-stall dairy. In winter, composted...

Mutlu, Atilla

2009-05-15T23:59:59.000Z

371

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

372

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

E-Print Network [OSTI]

State Air Pollution Regulatory Agencies (SAPRAs) often use dispersion modeling to predict downwind concentrations of particulate matter (PM) from a facility. As such, a facility may be granted or denied an operating permit based on the results...

Meister, Michael Todd

2000-01-01T23:59:59.000Z

373

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

374

CHALLENGES WITH RETRIEVING TRANSURANIC WASTE FROM THE HANFORD BURIAL GROUNDS  

SciTech Connect (OSTI)

The U.S. DOE's Hanford Reservation produced plutonium and other nuclear materials for the nation's defense starting in World War II. The defense mission generated wastes that were either retrievably stored (i.e. retrievably stored waste) and/or disposed of in burial grounds. Challenges have emerged from retrieving suspect TRU waste including adequacy of records, radiological concerns, container integrity, industrial hygiene and safety issues, the lack of processing/treatment facilities, and the integration of regulatory requirements. All retrievably stored waste is managed as mixed waste and assumed to be TRU waste, unless documented otherwise. Mixed waste is defined as radioactive waste that contains hazardous constituents. The Atomic Energy Act governs waste with radionuclides, and the Resource Conservation and Recovery Act (RCRA) governs waste with hazardous constituents. Waste may also be governed by the Toxic Substances Control Act (TSCA), and a portion may be managed under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). In 1970, TRU waste was required to be placed in 20-year retrievable storage and segregated from other Waste. Prior to that date, segregation did not occur. Because of the changing definition of TRU over the years, and the limitations of early assay equipment, all retrievably stored waste in the burial grounds is managed as suspect TRU. Experience has shown that some of this waste will be characterized as low-level (non-TRU) waste after assay. The majority of the retrieved waste is not amenable to sampling due to waste type and/or radiological issues. Key to waste retrieval and disposition are characterization, historical investigation and research, knowledge of past handling and packaging, as well as a broad understanding and application of the regulations.

SWAN, R.J.; LAKES, M.E.

2007-08-06T23:59:59.000Z

375

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

376

Development of Earthquake Ground Motion Input for Preclosure Seismic Design and Postclosure Performance Assessment of a Geologic Repository at Yucca Mountain, NV  

SciTech Connect (OSTI)

This report describes a site-response model and its implementation for developing earthquake ground motion input for preclosure seismic design and postclosure assessment of the proposed geologic repository at Yucca Mountain, Nevada. The model implements a random-vibration theory (RVT), one-dimensional (1D) equivalent-linear approach to calculate site response effects on ground motions. The model provides results in terms of spectral acceleration including peak ground acceleration, peak ground velocity, and dynamically-induced strains as a function of depth. In addition to documenting and validating this model for use in the Yucca Mountain Project, this report also describes the development of model inputs, implementation of the model, its results, and the development of earthquake time history inputs based on the model results. The purpose of the site-response ground motion model is to incorporate the effects on earthquake ground motions of (1) the approximately 300 m of rock above the emplacement levels beneath Yucca Mountain and (2) soil and rock beneath the site of the Surface Facilities Area. A previously performed probabilistic seismic hazard analysis (PSHA) (CRWMS M&O 1998a [DIRS 103731]) estimated ground motions at a reference rock outcrop for the Yucca Mountain site (Point A), but those results do not include these site response effects. Thus, the additional step of applying the site-response ground motion model is required to develop ground motion inputs that are used for preclosure and postclosure purposes.

I. Wong

2004-11-05T23:59:59.000Z

377

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

378

Ozone generation by negative direct current corona discharges in dry air fed coaxial wire-cylinder reactors  

SciTech Connect (OSTI)

An analytical study was made in this paper for calculating the ozone generation by negative dc corona discharges. The corona discharges were formed in a coaxial wire-cylinder reactor. The reactor was fed by dry air flowing with constant rates at atmospheric pressure and room temperature, and stressed by a negative dc voltage. The current-voltage characteristics of the negative dc corona discharges formed inside the reactor were measured in parallel with concentration of the generated ozone under different operating conditions. An empirical equation was derived from the experimental results for calculating the ozone concentration generated inside the reactor. The results, that have been recalculated by using the derived equation, have agreed with the experimental results over the whole range of the investigated parameters, except in the saturation range for the ozone concentration. Therefore, the derived equation represents a suitable criterion for expecting the ozone concentration generated by negative dc corona discharges in dry air fed coaxial wire-cylinder reactors under any operating conditions in range of the investigated parameters.

Yehia, Ashraf [Department of Physics, Faculty of Science, Assiut University, Assiut 71516, Egypt and Department of Physics, College of Science and Humanitarian Studies in Alkharj, Salman bin Abdulaziz University, P.O. Box 83, Alkharj 11942 (Saudi Arabia)] [Department of Physics, Faculty of Science, Assiut University, Assiut 71516, Egypt and Department of Physics, College of Science and Humanitarian Studies in Alkharj, Salman bin Abdulaziz University, P.O. Box 83, Alkharj 11942 (Saudi Arabia); Mizuno, Akira [Department of Environmental and Life Sciences, Toyohashi University of Technology, Tempaku-cho, Toyohashi 441-8580 (Japan)] [Department of Environmental and Life Sciences, Toyohashi University of Technology, Tempaku-cho, Toyohashi 441-8580 (Japan)

2013-05-14T23:59:59.000Z

379

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

380

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.

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

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

382

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

383

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

384

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

385

Passive Neutron Non-Destructive Assay for Remediation of Radiological Waste at Hanford Burial Grounds- 13189  

SciTech Connect (OSTI)

The Hanford burial grounds contains a broad spectrum of low activity radioactive wastes, transuranic (TRU) wastes, and hazardous wastes including fission products, byproduct material (thorium and uranium), plutonium and laboratory chemicals. A passive neutron non-destructive assay technique has been developed for characterization of shielded concreted drums exhumed from the burial grounds. This method facilitates the separation of low activity radiological waste containers from TRU waste containers exhumed from the burial grounds. Two identical total neutron counting systems have been deployed, each consisting of He-3 detectors surrounded by a polyethylene moderator. The counts are processed through a statistical filter that removes outliers in order to suppress cosmic spallation events and electronic noise. Upon completion of processing, a 'GO / NO GO' signal is provided to the operator based on a threshold level equivalent to 0.5 grams of weapons grade plutonium in the container being evaluated. This approach allows instantaneous decisions to be made on how to proceed with the waste. The counting systems have been set up using initial on-site measurements (neutron emitting standards loaded into surrogate waste containers) combined with Monte Carlo modeling techniques. The benefit of this approach is to allow the systems to extend their measurement ranges, in terms of applicable matrix types and container sizes, with minimal interruption to the operations at the burial grounds. (authors)

Simpson, A.; Pitts, M. [Pajarito Scientific Corporation, 2976 Rodeo Park Drive East, Santa Fe, NM 87505 (United States)] [Pajarito Scientific Corporation, 2976 Rodeo Park Drive East, Santa Fe, NM 87505 (United States); Ludowise, J.D.; Valentinelli, P. [Washington Closure Hanford, 2620 Fermi Ave., Richland, WA 99354 (United States)] [Washington Closure Hanford, 2620 Fermi Ave., Richland, WA 99354 (United States); Grando, C.J. [ELR Consulting, Inc., 15247 Wilbur Rd., La Conner, WA 98257 (United States)] [ELR Consulting, Inc., 15247 Wilbur Rd., La Conner, WA 98257 (United States); Haggard, D.L. [WorleyParsons Polestar, 601 Williams Blvd., Richland, WA 99354 (United States)] [WorleyParsons Polestar, 601 Williams Blvd., Richland, WA 99354 (United States)

2013-07-01T23:59:59.000Z

386

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

387

Ground Gravity Survey At Neal Hot Springs Geothermal Area (Colwell...  

Open Energy Info (EERE)

Technique Ground Gravity Survey Activity Date 2011 - 2011 Usefulness not indicated DOE-funding Unknown Exploration Basis Gravity surveys were conducted to gain a better...

388

Ground Magnetics At Neal Hot Springs Geothermal Area (Colwell...  

Open Energy Info (EERE)

Technique Ground Magnetics Activity Date 2011 - 2011 Usefulness not indicated DOE-funding Unknown Exploration Basis Magnetic surveys were conducted to gain a better...

389

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...

390

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.

391

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...

392

Ground Gravity Survey At Dixie Valley Geothermal Area (Allis...  

Open Energy Info (EERE)

Activity Details Location Dixie Valley Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1999 - 2000 Usefulness not indicated DOE-funding Unknown...

393

Ground Gravity Survey At Kilauea East Rift Geothermal Area (Broyles...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Kilauea East Rift Geothermal Area (Broyles, Et Al., 1979) Exploration...

394

Ground Gravity Survey At Kilauea East Rift Geothermal Area (Leslie...  

Open Energy Info (EERE)

Details Location Kilauea East Rift Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1998 - 1998 Usefulness useful DOE-funding Unknown Exploration...

395

Ground Gravity Survey At Neal Hot Springs Geothermal Area (U...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Neal Hot Springs Geothermal Area (U.S. Geothermal Inc., 2007) Exploration...

396

Ground Gravity Survey At Kilauea East Rift Geothermal Area (FURUMOTO...  

Open Energy Info (EERE)

Details Location Kilauea East Rift Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1974 - 1974 Usefulness useful DOE-funding Unknown Exploration...

397

Ground Gravity Survey At Mt Princeton Hot Springs Geothermal...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Mt Princeton Hot Springs Geothermal Area (Case, Et Al., 1984) Exploration...

398

Ground Gravity Survey At Baltazor Hot Springs Area (Isherwood...  

Open Energy Info (EERE)

to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Baltazor Hot Springs Area (Isherwood & Mabey, 1978) Exploration Activity...

399

Ground Gravity Survey At Roosevelt Hot Springs Geothermal Area...  

Open Energy Info (EERE)

Details Location Roosevelt Hot Springs Geothermal Area Exploration Technique Ground Gravity Survey Activity Date 1985 - 1985 Usefulness useful DOE-funding Unknown Exploration...

400

Ground Gravity Survey At Blue Mountain Geothermal Area (Fairbank...  

Open Energy Info (EERE)

Fairbank Engineering Ltd, 2003) Exploration Activity Details Location Blue Mountain Geothermal Area Exploration Technique Ground Gravity Survey Activity Date Usefulness not...

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

artificial ground freezing: Topics by E-print Network  

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

Moorman, Brian 6 Ground state lost but degeneracy found: the effective thermodynamics of artificial spin ice Condensed Matter (arXiv) Summary: We analyze the rotational...

402

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,...

403

Optimal Ground-Source Heat Pump System Design  

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

Ground-Source Heat Pump System Design May 19, 2010 Geothermal Technologies Program 2010 Peer Review ENVIRON International PI : Metin Ozbek Track : GSHP Demonstration Projects This...

404

Renewable Energy Opportunities at Yuma Proving Ground, Arizona  

SciTech Connect (OSTI)

This document provides an overview of renewable resource potential at Yuma Proving Ground, based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations.

Orrell, Alice C.; Kora, Angela R.; Russo, Bryan J.; Williamson, Jennifer L.; Weimar, Mark R.; Gorrissen, Willy J.; Dixon, Douglas R.

2010-06-30T23:59:59.000Z

405

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

406

Ground Electromagnetic Survey At Kilauea East Rift Geothermal...  

Open Energy Info (EERE)

horizontally on the ground. Interpretation of the data was made using an inversion computer program and the primary magnetic field was estimated directly from the data rather...

407

Ground Gravity Survey At Lake City Hot Springs Area (Warpinski...  

Open Energy Info (EERE)

Lake City Hot Springs Area (Warpinski, Et Al., 2004) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Ground Gravity Survey At Lake City Hot...

408

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,...

409

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

410

Baseline risk assessment of ground water contamination at the uranium mill tailings site near Falls City, Texas: Revision 1  

SciTech Connect (OSTI)

This baseline risk assessment of ground water contamination of the uranium mill tailings site near Falls City, Texas, evaluates potential impact to public health and the environment resulting from ground water contamination at the former Susquehanna Western, Inc. (SWI), uranium mill processing site. This document fulfills the following objectives: determine if the site presents immediate or potential future health risks, determine the need for interim institutional controls, serve as a key input to project planning and prioritization, and recommend future data collection efforts to more fully characterize risk. The Uranium Mill Tailings Remedial Action (UMTRA) Project has begun its evaluation of ground water contamination at the Falls City site. This risk assessment is one of the first documents specific to this site for the Ground Water Project. The first step is to evaluate ground water data collected from monitor wells at or near the site. Evaluation of these data show the main contaminants in the Dilworth ground water are cadmium, cobalt, fluoride, iron, nickel, sulfate, and uranium. The data also show high levels of arsenic and manganese occur naturally in some areas.

Not Available

1994-09-01T23:59:59.000Z

411

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

412

Pulmonary function and symptom responses after 6. 6-hour exposure to 0. 12 ppm ozone with moderate exercise  

SciTech Connect (OSTI)

Episodes occasionally occur when ambient ozone (O/sub 3/) levels remain at or near 0.12 ppm for more than 6 h. Small decrements in lung function have been reported following 2-h exposures to 0.12 ppm O/sub 3/. For short exposures to higher O/sub 3/ concentrations, lung function decrements are a function of exposure duration. Thus, we investigated the hypothesis that prolonged exposure to 0.12 ppm O/sub 3/ would result in progressively larger changes in respiratory function and symptoms over time. Ten nonsmoking males were exposed once to clean air and once to 0.12 ppm O/sub 3/ for 6.6 h. Exposures consisted of six 50-min exercise periods, each followed by 10-min rest and measurement; a 35-min lunch period followed by the third exercise period. Exercise ventilation averaged approximately 40 L/min. Forced expiratory and inspiratory spirometry and respiratory symptoms were measured prior to exposure and after each exercise. Airway reactivity to methacholine was determined after each exposure. After correcting for the air exposures, FEV 1.0 was found to decrease linearly during the O/sub 3/ exposure and was decreased by an average of 13.0 percent at the end of exposure. Decreases in FVC and FEF24-75% were also linear and averaged 8.3 and 17.4 percent, respectively, at the end of exposure. On forced inspiratory tests, the FIVC and FIV05 were decreased 12.6 and 20.7 percent, respectively. Increases in the symptom ratings of cough and pain on deep inspiration were observed with O/sub 3/ exposure but not with clean air. Airway reactivity to methacholine was approximately doubled following O/sub 3/ exposure.

Folinsbee, L.J.; McDonnell, W.F.; Horstman, D.H.

1988-01-01T23:59:59.000Z

413

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

414

CLEARING THE AIR? THE EFFECTS OF GASOLINE CONTENT REGULATION ON AIR QUALITY  

E-Print Network [OSTI]

)--are pollutants produced in part through human activity. Ozone control programs have targeted a wide array of VOCCLEARING THE AIR? THE EFFECTS OF GASOLINE CONTENT REGULATION ON AIR QUALITY Maximilian Auffhammer regulations on ground- level ozone pollution. These regulations are costly and have been shown to fragment

Edwards, Paul N.

415

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

416

Predicting tropospheric ozone and hydroxyl radical in a global, three-dimensional, chemistry, transport, and deposition model  

SciTech Connect (OSTI)

Two of the most important chemically reactive tropospheric gases are ozone (O{sub 3}) and the hydroxyl radical (OH). Although ozone in the stratosphere is a necessary protector against the sun`s radiation, tropospheric ozone is actually a pollutant which damages materials and vegetation, acts as a respiratory irritant, and is a greenhouse gas. One of the two main sources of ozone in the troposphere is photochemical production. The photochemistry is initiated when hydrocarbons and carbon monoxide (CO) react with nitrogen oxides (NO{sub x} = NO + NO{sub 2}) in the presence of sunlight. Reaction with the hydroxyl radical, OH, is the main sink for many tropospheric gases. The hydroxyl radical is highly reactive and has a lifetime on the order of seconds. Its formation is initiated by the photolysis of tropospheric ozone. Tropospheric chemistry involves a complex, non-linear set of chemical reactions between atmospheric species that vary substantially in time and space. To model these and other species on a global scale requires the use of a global, three-dimensional chemistry, transport, and deposition (CTD) model. In this work, I developed two such three dimensional CTD models. The first model incorporated the chemistry necessary to model tropospheric ozone production from the reactions of nitrogen oxides with carbon monoxide (CO) and methane (CH{sub 4}). The second also included longer-lived alkane species and the biogenic hydrocarbon isoprene, which is emitted by growing plants and trees. The models` ability to predict a number of key variables (including the concentration of O{sub 3}, OH, and other species) were evaluated. Then, several scenarios were simulated to understand the change in the chemistry of the troposphere since preindustrial times and the role of anthropogenic NO{sub x} on present day conditions.

Atherton, C.S.

1995-01-05T23:59:59.000Z

417

Lagrangian methods for climatological analysis of regional atmospheric transport with an emphasis on Texas ozone exceedances  

E-Print Network [OSTI]

. ............ 43 19 48-hour backward trajectory for Event 2. Ozone values for 1998-08- 15?1998-08-17 are also shown. ...................... 45 20 Geopotential height in m at 1000 hPa on 1998-08-16 at 18Z and a plot of surface weather on 1998-08-17 at 0Z provided....1) for all possible delta-function initial conditions (all x0), that is, partialdiffG partialdifft +v ?nablaG =0,G(x, x0,t0)=delta(x -x0). (3.2) The principal advantage of this solution technique is that, if G can be found, the solution to (3...

Dexheimer, Darielle Nicole

2004-11-15T23:59:59.000Z

418

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

419

Could the Earth's surface Ultraviolet irradiance be blamed for the global warming? (II) ----Ozone layer depth reconstruction via HEWV effect  

E-Print Network [OSTI]

It is suggested by Chen {\\it et al.} that the Earth's surface Ultraviolet irradiance ($280-400$ nm) could influence the Earth's surface temperature variation by "Highly Excited Water Vapor" (HEWV) effect. In this manuscript, we reconstruct the developing history of the ozone layer depth variation from 1860 to 2011 based on the HEWV effect. It is shown that the reconstructed ozone layer depth variation correlates with the observational variation from 1958 to 2005 very well ($R=0.8422$, $P>99.9\\%$). From this reconstruction, we may limit the spectra band of the surface Ultraviolet irradiance referred in HEWV effect to Ultraviolet B ($280-320$ nm).

Chen, Jilong; Zheng, Yujun

2014-01-01T23:59:59.000Z

420

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.


421

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

422

Train-the-Trainer As ground source heat  

E-Print Network [OSTI]

Train-the-Trainer As ground source heat pumps capture more of the HVAC market, the need will also receive a copy of the Closed-Loop/ Ground- Source Heat Pump Systems Installation Guide · Soils and Rock Identification · Pump and Fluid Selection Registration information You must be an IGSHPA

423

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

424

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

425

Integrated Water Management Options in the Nebraska Ground Water Management &  

E-Print Network [OSTI]

ag chemical best management practices 7. soil testing 8. voluntary or mandatory educational programs regulate ground water development (well spacing regulations, well drilling prohibitions) and ground water by implementing the above GMA regulations, well drilling may be halted or conditioned. NRD permits are required

Nebraska-Lincoln, University of

426

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

1999-01-01T23:59:59.000Z

427

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

428

Document Number Q0029500 Ground Water Model 3.0 Ground Water Model  

Office of Legacy Management (LM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartment ofDepartment ofofOxford SiteToledo SiteTonawanda North SiteD&Dir^0 0 039Ground

429

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

430

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

431

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

432

NOx Emission Reduction and its Effects on Ozone during the 2008 Olympic Games  

SciTech Connect (OSTI)

We applied a daily-assimilated inversion method to estimate NOx (NO+NO2) emissions for June-September 2007 and 2008 on the basis of the Aura Ozone Monitoring Instrument (OMI) observations of nitrogen dioxide (NO2) and model simulations using the Regional chEmistry and trAnsport Model (REAM). Over urban Beijing, rural Beijing, and the Huabei Plain, OMI column NO2 reductions are approximately 45%, 33%, and 14%, respectively, while the corresponding anthropogenic NOx emission reductions are only 28%, 24%, and 6%, during the full emission control period (July 20 – Sep 20, 2008). The emission reduction began in early July and was in full force by July 20, corresponding to the scheduled implementation of emission controls over Beijing. The emissions did not appear to recover after the emission control period. Meteorological change from summer 2007 to 2008 is the main factor contributing to the column NO2 decreases not accounted for by the emission reduction. Model simulations suggest that the effect of emission reduction on ozone concentrations over Beijing is relatively minor using a standard VOC emission inventory in China. With an adjustment of the model emissions to reflect in situ observations of VOCs in Beijing, the model simulation suggests a larger effect of the emission reduction.

Yang, Qing; Wang, Yuhang; Zhao, Chun; Liu, Zhen; Gustafson, William I.; Shao, Min

2011-07-15T23:59:59.000Z

433

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

434

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

435

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.

436

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

437

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

438

COMBUSTION AND FLAME 24, 27-34 (1975) 27 Flame Emission Studies of Ozone with Metal Alkyls  

E-Print Network [OSTI]

COMBUSTION AND FLAME 24, 27-34 (1975) 27 Flame Emission Studies of Ozone with Metal Alkyls: Zn (CH3 of combustion. Premixed [2, 3] anddiffusion [4] flames of metal alkyl compounds have been carried out to deter- tageous to study the combustion of polyatomic molecules under single-collision conditions, i

Zare, Richard N.

439

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

440

Hydrogeologic evaluation and numerical simulation of the Death Valley regional ground-water flow system, Nevada and California  

SciTech Connect (OSTI)

Yucca Mountain is being studied as a potential site for a high-level radioactive waste repository. In cooperation with the U.S. Department of Energy, the U.S. Geological Survey is evaluating the geologic and hydrologic characteristics of the ground-water system. The study area covers approximately 100,000 square kilometers between lat 35{degrees}N., long 115{degrees}W and lat 38{degrees}N., long 118{degrees}W and encompasses the Death Valley regional ground-water flow system. Hydrology in the region is a result of both the and climatic conditions and the complex described as dominated by interbasinal flow and may be conceptualized as having two main components: a series of relatively shallow and localized flow paths that are superimposed on deeper regional flow paths. A significant component of the regional ground-water flow is through a thick Paleozoic carbonate rock sequence. Throughout the regional flow system, ground-water flow is probably controlled by extensive and prevalent structural features that result from regional faulting and fracturing. Hydrogeologic investigations over a large and hydrogeologically complex area impose severe demands on data management. This study utilized geographic information systems and geoscientific information systems to develop, store, manipulate, and analyze regional hydrogeologic data sets describing various components of the ground-water flow system.

D`Agnese, F.A.; Faunt, C.C.; Turner, A.K.; Hill, M.C.

1997-12-31T23:59:59.000Z

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.


441

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

442

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

443

Combined permeable pavement and ground source heat pump systems   

E-Print Network [OSTI]

The PhD thesis focuses on the performance assessment of permeable pavement systems incorporating ground source heat pumps (GSHP). The relatively high variability of temperature in these systems allows for the survival of pathogenic organisms within...

Grabowiecki, Piotr

2010-01-01T23:59:59.000Z

444

Optimal Design for a Hybrid Ground-Source Heat Pump  

E-Print Network [OSTI]

Although the advantages of ground-source heat pumps over their conventional alternatives make these systems a very attractive choice for air conditioning, not only for residential buildings but increasingly also for institutional and commercial...

Yu, Z.; Yuan, X.; Wang, B.

2006-01-01T23:59:59.000Z

445

Apparatus and method for grounding compressed fuel fueling operator  

DOE Patents [OSTI]

A safety system for grounding an operator at a fueling station prior to removing a fuel fill nozzle from a fuel tank upon completion of a fuel filling operation is provided which includes a fuel tank port in communication with the fuel tank for receiving and retaining the nozzle during the fuel filling operation and a grounding device adjacent to the fuel tank port which includes a grounding switch having a contact member that receives physical contact by the operator and where physical contact of the contact member activates the grounding switch. A releasable interlock is included that provides a lock position wherein the nozzle is locked into the port upon insertion of the nozzle into the port and a release position wherein the nozzle is releasable from the port upon completion of the fuel filling operation and after physical contact of the contact member is accomplished.

Cohen, Joseph Perry (Bethlehem, PA); Farese, David John (Riegelsville, PA); Xu, Jianguo (Wrightstown, PA)

2002-06-11T23:59:59.000Z

446

Acoustic and Seismic Modalities for Unattended Ground Sensors  

SciTech Connect (OSTI)

In this paper, we have presented the relative advantages and complementary aspects of acoustic and seismic ground sensors. A detailed description of both acoustic and seismic ground sensing methods has been provided. Acoustic and seismic phenomenology including source mechanisms, propagation paths, attenuation, and sensing have been discussed in detail. The effects of seismo-acoustic and acousto-seismic interactions as well as recommendations for minimizing seismic/acoustic cross talk have been highlighted. We have shown representative acoustic and seismic ground sensor data to illustrate the advantages and complementary aspects of the two modalities. The data illustrate that seismic transducers often respond to acoustic excitation through acousto-seismic coupling. Based on these results, we discussed the implications of this phenomenology on the detection, identification, and localization objectives of unattended ground sensors. We have concluded with a methodology for selecting the preferred modality (acoustic and/or seismic) for a particular application.

Elbring, G.J.; Ladd, M.D.; McDonald, T.S.; Sleefe, G.E.

1999-03-31T23:59:59.000Z

447

Effect of anisotropy in ground movements caused by tunnelling  

E-Print Network [OSTI]

This paper presents closed-form analytical solutions for estimating far-field ground deformations caused by shallow tunnelling in a linear elastic soil mass with cross-anisotropic stiffness properties. The solutions describe ...

Zymnis, Despina Maria

448

Ground Versus Unground Grain for Lactating Dairy Cows.  

E-Print Network [OSTI]

. Table 10. Effects of Feeding Ground versus Whole Grain on High versus Low Producing Cows. Productive Values of Whole Grains Experiment Numbers Corn Experiment No. 1.. .... .... Corn Experiment No. 2.. ..... Oat Experiment No. 1.. Oat Experiment hTo...

Darnell, A. L. (Albert Laurie); Copeland, O. C. (Orlin Cephas)

1936-01-01T23:59:59.000Z

449

Slotted Ground Structures and Their Applications to Various Microwave Components  

E-Print Network [OSTI]

(LPF) using slotted ground structure (SGS) with dumbbell shape is designed and measured to validate its theories. By using SGS techniques presented in this thesis, some other RF/microwave components such as a periodic structure, ultra-wideband bandpass...

Jung, Dong

2010-01-16T23:59:59.000Z

450

Improvable upper bounds to the piezoelectric polaron ground state energy  

E-Print Network [OSTI]

It was shown that an infinite sequence of improving non-increasing upper bounds to the ground state energy (GSE) of a slow-moving piezoeletric polaron can be devised.

A. V. Soldatov

2014-12-31T23:59:59.000Z

451

EPA Final Ground Water Rule Available Online, 3/07  

Broader source: Energy.gov [DOE]

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...

452

Mk12A/W78 ground test project (u)  

SciTech Connect (OSTI)

The slides present the scope, objectives and status of the Mk12A1W78 Ground Test Project for the purpose of updating the ICBM Project Officers Group. In addition, project constraints and risks are discussed.

Stokes, Kyle R [Los Alamos National Laboratory

2010-12-01T23:59:59.000Z

453

area burial ground: Topics by E-print Network  

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

of Medicine Campus Yoshida-South Campus (Clock Tower Takada, Shoji 83 AREAS OF GROUND SUBSIDENCE DUE TO GEO-FLUID WITHDRAWAL University of California eScholarship Repository...

454

area burial grounds: Topics by E-print Network  

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

of Medicine Campus Yoshida-South Campus (Clock Tower Takada, Shoji 83 AREAS OF GROUND SUBSIDENCE DUE TO GEO-FLUID WITHDRAWAL University of California eScholarship Repository...

455

Ground facilities for a VTOL intercity air transportation system  

E-Print Network [OSTI]

Introduction: This study covers the design of ground facilities, or metroports, for a future form of short haul intercity air transportation, the VTOL Airbus system as described by previous M.I.T. Flight Transportation ...

Allen Edward

1970-01-01T23:59:59.000Z

456

411 / 2011 / 01 fp Grounds RFP v6  

E-Print Network [OSTI]

OF THE UNIVERSITY'S GROUNDS AND OUTDOOR SPORTS FACILITIES MAINTENANCE AND RELATED ANCILLARY AND COMPLEMENTARY....................................................................................... 5 2.4. MAINTENANCE CONTRACT one or more suitably qualified and experienced landscape and turf grass contractors to manage

457

Control and waypoint navigation of an autonomous ground vehicle  

E-Print Network [OSTI]

This thesis describes the initial development of the Texas A&M Autonomous Ground Vehicle test platform and waypoint following software, including the associated controller design. The original goal of the team responsible for the development...

Massey, James Patrick

2006-08-16T23:59:59.000Z

458

Ground states of lattice gases with ``almost'' convex repulsive interactions  

E-Print Network [OSTI]

the feature known as the complete devil's staircase. KEY WORDS: Classical lattice­gas models; ground states; nonconvex interactions; most homogeneous configurations; devil's staircase. \\Lambda Pl. Maksa Borna 9, 50

459

Effect of existing building on tunneling-induced ground movements  

E-Print Network [OSTI]

The goal of this thesis is to assess the influence of an existing structure on tunneling-induced ground movements. This is accomplished through 2D numerical simulations that are compared with similar prior studies reported ...

Law, Rachel Hoi-chee

2012-01-01T23:59:59.000Z

460

Environmental geophysics at Kings Creek Disposal Site and 30th Street Landfill, Aberdeen Proving Ground, Maryland  

SciTech Connect (OSTI)

Geophysical studies on the Bush River Peninsula in the Edgewood Area of Aberdeen Proving Ground, Maryland, delineate landfill areas and provide diagnostic signatures of the hydrogeologic framework and possible contaminant pathways. These studies indicate that, during the Pleistocene Epoch, alternating stands of high and low seal levels resulted in a complex pattern of shallow channel-fill deposits in the Kings Creek area. Ground-penetrating radar studies reveal a paleochannel greater than 50 ft deep, with a thalweg trending offshore in a southwest direction into Kings Creek. Onshore, the ground-penetrating radar data indicate a 35-ft-deep branch to the main channel, trending to the north-northwest directly beneath the 30th Street Landfill. Other branches are suspected to meet the offshore paleochannel in the wetlands south and east of the 30th Street Landfill. This paleochannel depositional system is environmentally significant because it may control the shallow groundwater flow regime beneath the site. Electromagnetic surveys have delineated the pre-fill lowland area currently occupied by the 30th Street Landfill. Magnetic and conductive anomalies outline surficial and buried debris throughout the study area. On the basis of geophysical data, large-scale dumping has not occurred north of the Kings Creek Disposal Site or east of the 30th Street Landfill.

Davies, B.E.; Miller, S.F.; McGinnis, L.D.; Daudt, C.R.; Thompson, M.D.; Stefanov, J.E.; Benson, M.A.; Padar, C.A.

1995-01-01T23:59:59.000Z

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.


461

Renewable Energy Opportunties at Dugway Proving Ground, Utah  

SciTech Connect (OSTI)

This document provides an overview of renewable resource potential at Dugway Proving Ground, based primarily upon analysis of secondary data sources supplemented with limited on-site evaluations. This effort focuses on grid-connected generation of electricity from renewable energy sources and ground source heat pumps (GSHPs). The effort was funded by the U.S. Army Installation Management Command (IMCOM) as follow-on to the 2005 Department of Defense (DoD) Renewables Assessment.

Orrell, Alice C.; Kora, Angela R.; Russo, Bryan J.; Horner, Jacob A.; Williamson, Jennifer L.; Weimar, Mark R.; Gorrissen, Willy J.; Nesse, Ronald J.; Dixon, Douglas R.

2010-05-31T23:59:59.000Z

462

Ground state hyperfine structure in muonic lithium ions  

E-Print Network [OSTI]

On the basis of perturbation theory in fine structure constant alpha and the ratio of electron to muon masses we calculate one-loop vacuum polarization, electron vertex corrections, nuclear structure and recoil corrections to hyperfine splitting of the ground state in muonic lithium ions $(\\mu\\ e\\ ^6_3Li)^+$ and $(\\mu\\ e\\ ^7_3Li)^+$. We obtain total results for the ground state small hyperfine splittings in $(\\mu\\ e\\ ^6_3Li)^+$ $\\Delta\

A. P. Martynenko; A. A. Ulybin

2014-11-21T23:59:59.000Z

463

Ground state energy fluctuations in the Nuclear Shell Model  

E-Print Network [OSTI]

Statistical fluctuations of the nuclear ground state energies are estimated using shell model calculations in which particles in the valence shells interact through well defined forces, and are coupled to an upper shell governed by random 2-body interactions. Induced ground-state energy fluctuations are found to be one order of magnitude smaller than those previously associated with chaotic components, in close agreement with independent perturbative estimates based on the spreading widths of excited states.

Victor Velazquez; Jorge G. Hirsch; Alejandro Frank; Jose Barea; Andres P. Zuker

2005-03-29T23:59:59.000Z

464

Chiral Ground States in a Frustrated Holographic Superconductor  

E-Print Network [OSTI]

Frustration is an important phenomenon in condensed matter physics because it can introduce a new order parameter such as chirality. Towards understanding a mechanism of the frustration in strongly correlated systems, we study a holographic superconductor model with three scalar fields and an interband Josephson coupling, which is important for the frustration. We analyze free energy of solutions of the model to determine ground states. We find chiral ground states, which have nonzero chirality.

Nishida, Mitsuhiro

2015-01-01T23:59:59.000Z

465

Chiral Ground States in a Frustrated Holographic Superconductor  

E-Print Network [OSTI]

Frustration is an important phenomenon in condensed matter physics because it can introduce a new order parameter such as chirality. Towards understanding a mechanism of the frustration in strongly correlated systems, we study a holographic superconductor model with three scalar fields and an interband Josephson coupling, which is important for the frustration. We analyze free energy of solutions of the model to determine ground states. We find chiral ground states, which have nonzero chirality.

Mitsuhiro Nishida

2015-02-28T23:59:59.000Z

466

Ground Source Heat Pump Subprogram Overview | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeatMulti-Dimensional Subject:Ground Source Heat Pump Subprogram Overview Ground Source

467

Application analysis of ground source heat pumps in building space conditioning  

E-Print Network [OSTI]

for ground-source heat pumps. in ASHRAE Summer Meeting.savings of ground source heat pump systems in Europe: Afor ground-source heat pumps: A literature review,

Qian, Hua

2014-01-01T23:59:59.000Z

468

ARM - Ozone  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUC : XDCResearchWarmingMethane BackgroundFacilityOther Aircraft

469

Utilization of Recently Enhanced Simulation Tools and Empirical Ground Motion Databases to Improve Ground Motion Prediction Capabilities  

E-Print Network [OSTI]

K. Irikura, H.K. Thio, P.G. Somerville, Y. Fukushima, and Y.Fukushima. “Attenuation relations of strong ground motion incatastrophic damage at the Fukushima nuclear power plant,

Khodavirdi, Khatereh

2013-01-01T23:59:59.000Z

470

A cost-effectiveness analysis of alternative ozone control strategies : flexible nitrogen oxide (NOx) abatement from power plants in the eastern United States  

E-Print Network [OSTI]

Ozone formation is a complex, non-linear process that depends on the atmospheric concentrations of its precursors, nitrogen oxide (NOx) and Volatile Organic Compounds (VOC), as well as on temperature and the available ...

Sun, Lin, S.M. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

471

Tiltmeter leveling mechanism  

DOE Patents [OSTI]

A tiltmeter device having a pair of orthogonally disposed tilt sensors that are levelable within an inner housing containing the sensors. An outer housing can be rotated to level at least one of the sensor pair while the inner housing can be rotated to level the other sensor of the pair. The sensors are typically rotated up to about plus or minus 100 degrees. The device is effective for measuring tilts in a wide range of angles of inclination of wells and can be employed to level a platform containing a third sensor.

Hunter, Steven L. (Livermore, CA); Boro, Carl O. (Milpitas, CA); Farris, Alvis (late of Byron, CA)

2002-01-01T23:59:59.000Z

472

Advanced Ground Source Heat Pump Technology for Very-Low-Energy...  

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

loop designs being evaluated for their ground loop cost reduction potential
Credit: Oak Ridge National Lab Three newunder-utilized ground loop designs being evaluated for...

473

A capital cost comparison of commercial ground-source heat pump systems  

SciTech Connect (OSTI)

The report provides a capital cost comparison of commercial ground source heat pump systems. The study includes groundwater systems, ground-coupled systems and hybrid systems.

Rafferty, K.

1994-06-01T23:59:59.000Z

474

E-Print Network 3.0 - achieving ground state Sample Search Results  

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

by their frequency or polarization upon decay to their respective ground states. Preliminary... isotope 137 Ba+ whose nuclear spin leads to ground state ... Source:...

475

Final programmatic environmental impact statement for the uranium mill tailings remedial action ground water project. Volume I  

SciTech Connect (OSTI)

This programmatic environmental impact statement (PElS) was prepared for the Uranium Mill Tailings Remedial Action (UMTRA) Ground Water Project to comply with the National Environmental Policy Act (NEPA). This PElS provides an analysis of the potential impacts of the alternatives and ground water compliance strategies as well as potential cumulative impacts. On November 8, 1978, Congress enacted the Uranium Mill Tailings Radiation Control Act (UMTRCA) of 1978, Public Law, codified at 42 USC §7901 et seq. Congress found that uranium mill tailings " ... may pose a potential and significant radiation health hazard to the public, and that every reasonable effort should be made to provide for stabilization, disposal, and control in a safe, and environmentally sound manner of such tailings in order to prevent or minimize other environmental hazards from such tailings." Congress authorized the Secretary of Energy to designate inactive uranium processing sites for remedial action by the U.S. Department of Energy (DOE). Congress also directed the U.S. Environmental Protection Agency (EPA) to set the standards to be followed by the DOE for this process of stabilization, disposal, and control. On January 5, 1983, EPA published standards (40 CFR Part 192) for the disposal and cleanup of residual radioactive materials. On September 3, 1985, the U.S. Court of Appeals for the Tenth Circuit set aside and remanded to EPA the ground water provisions of the standards. The EPA proposed new standards to replace remanded sections and changed other sections of 40 CFR Part 192. These proposed standards were published in the Federal Register on September 24, 1987 (52 FR 36000). Section 108 of the UMTRCA requires that DOE comply with EPA's proposed standards in the absence of final standards. The Ground Water Project was planned under the proposed standards. On January 11, 1995, EPA published the final rule, with which the DOE must now comply. The PElS and the Ground Water Project are in accordance with the final standards. The EPA reserves the right to modify the ground water standards, if necessary, based on changes in EPA drinking water standards. Appendix A contains a copy of the 1983 EPA ground water compliance standards, the 1987 proposed changes to the standards, and the 1995 final rule. Under UMTRA, DOE is responsible for bringing the designated processing sites into compliance with the EPA ground water standards and complying with all other applicable standards and requirements. The U.S. Nuclear Regulatory Commission (NRC) must concur with DOE's actions. States are full participants in the process. The DOE also must consult with any affected Indian tribes and the Bureau of Indian Affairs. Uranium processing activities at most of the inactive mill sites resulted in the contamination of ground water beneath and, in some cases, downgradient of the sites. This contaminated ground water often has elevated levels of constituents such as but not limited to uranium and nitrates. The purpose of the UMTRA Ground Water Project is to eliminate or reduce to acceptable levels the potential health and environmental consequences of milling activities by meeting the EPA ground water standards.

None

1996-10-01T23:59:59.000Z

476

Removal of pollutant compounds from water supplies using ozone, ultraviolet light, and a counter, current packed column. Master's thesis  

SciTech Connect (OSTI)

Many water pollutants are determined to be carcinogenic and often appear in very low concentrations and still pose a health risk. Conventional water treatment processes cannot remove these contaminants and there is a great demand for the development of alternative removal technologies. The use of ozone and ultraviolet light in a counter current packed column could prove to be an effective treatment process to remove these contaminants.

Kelly, E.L.

1991-01-01T23:59:59.000Z

477

Coliphages and bacteria in ground water from Tehran, Iran  

SciTech Connect (OSTI)

The purpose of this study was to examine the microbial quality of Tehran's ground water and selected springs, using coliphages and selected bacteria as indicator organisms. The water table in Tehran varies from approximately 160 meters in the north to approximately 5 meters in the south. Individual wells and subterranean man-made aqueducts (qanate) tap the ground water. Since Tehran lacks municipal sewage facilities, waste disposal is by means of seepage pits, privies and leaching cesspools. There is potential for waste from these sites to leach into the ground water, particularly in the south where the water table is near the surface and the clay content of the soil holds moisture during periods of heavy rainfall.

Shariatpanahi, M.; Anderson, A.C.

1987-07-01T23:59:59.000Z

478

Improved freezing level retrieval  

E-Print Network [OSTI]

TRMM Microwave Imager(TMI)-based passive microwave retrieval techniques result in biased estimates of the freezing level and rainfall over the east Pacific in the Inter Tropical Convergence Zone (ITCZ). Passive microwave rainfall estimates...

Hong, Sungwook

2002-01-01T23:59:59.000Z

479

Functional ground testing - Evaluating the Tomahawk Cruise Missile  

SciTech Connect (OSTI)

Flight testing evaluates vehicle performance in a flight environment and, in the case of a weapon system, clearly indicates mission readiness. However, there is a cost-effective alternative method of testing which is capable of indicating weapon system functionality and subsystem success. Functional ground testing of the all-up round Tomahawk Cruise Missile is described. The Tomahawk functional ground test (FGT) cannot make the same conclusive determinations that an operational test launch can. This paper describes the Tomahawk FGT and what makes it unique. It describes the developments and status of this testing methodology, the data acquisition and control, and the engineering challenges encountered. 3 refs.

Parise, K.W. (U.S. Navy, Test and Evaluation Dept., Indian Head, MD (United States))

1992-01-01T23:59:59.000Z

480

From local to global ground states in Ising spin glasses  

E-Print Network [OSTI]

We consider whether it is possible to find ground states of frustrated spin systems by solving them locally. Using spin glass physics and Imry-Ma arguments in addition to numerical benchmarks we quantify the power of such local solution methods and show that for the average low-dimensional spin glass problem outside the spin- glass phase the exact ground state can be found in polynomial time. In the second part we present a heuristic, general-purpose hierarchical approach which for spin glasses on chimera graphs and lattices in two and three dimensions outperforms, to our knowledge, any other solver currently around, with significantly better scaling performance than simulated annealing.

Ilia Zintchenko; Matthew B. Hastings; Matthias Troyer

2015-01-09T23:59:59.000Z

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.


481

Ground-state alignment of atoms and ions: New Diagnostics of Astrophysical Magnetic field in diffuse medium  

E-Print Network [OSTI]

We discuss a new technique of studying magnetic fields in diffuse astrophysical media, e.g. interstellar and intergalactic gas/plasma. This technique is based on the angular momentum alignment of atoms and ions in their ground or metastable states. As the life-time of atoms in such states is long, the alignment induced by anisotropic radiation is susceptible to weak magnetic fields ($1{\\rm G}\\gtrsim B\\gtrsim0.1\\mu$G). The alignment reveals itself in terms of the polarization of the absorbed and emitted light. A variety of atoms with fine or hyperfine splitting of the ground or metastable states exhibit the alignment and the resulting polarization degree in some cases exceeds 20%. We show that in the case of absorption the polarization direction is either parallel or perpendicular to magnetic field, while more complex dependencies emerge for the case of emission of aligned atoms. We show that the corresponding studies of magnetic fields can be performed with optical and UV polarimetry. A unique feature of these studies is that they can reveal the 3D orientation of magnetic field. In addition, we point out that the polarization of the radiation arising from the transitions between fine and hyperfine states of the ground level can provide yet another promising diagnostics of magnetic fields, including the magnetic fields in the Early Universe. We mention several cases of interplanetary, circumstellar and interstellar magnetic fields for which the studies of magnetic fields using ground state atomic alignment effect are promising.

Huirong Yan; A. Lazarian

2008-06-23T23:59:59.000Z

482

Ground motion modeling of Hayward fault scenario earthquakes II:Simulation of long-period and broadband ground motions  

SciTech Connect (OSTI)

We simulate long-period (T > 1.0-2.0 s) and broadband (T > 0.1 s) ground motions for 39 scenarios earthquakes (Mw 6.7-7.2) involving the Hayward, Calaveras, and Rodgers Creek faults. For rupture on the Hayward fault we consider the effects of creep on coseismic slip using two different approaches, both of which reduce the ground motions compared with neglecting the influence of creep. Nevertheless, the scenario earthquakes generate strong shaking throughout the San Francisco Bay area with about 50% of the urban area experiencing MMI VII or greater for the magnitude 7.0 scenario events. Long-period simulations of the 2007 Mw 4.18 Oakland and 2007 Mw 4.5 Alum Rock earthquakes show that the USGS Bay Area Velocity Model version 08.3.0 permits simulation of the amplitude and duration of shaking throughout the San Francisco Bay area, with the greatest accuracy in the Santa Clara Valley (San Jose area). The ground motions exhibit a strong sensitivity to the rupture length (or magnitude), hypocenter (or rupture directivity), and slip distribution. The ground motions display a much weaker sensitivity to the rise time and rupture speed. Peak velocities, peak accelerations, and spectral accelerations from the synthetic broadband ground motions are, on average, slightly higher than the Next Generation Attenuation (NGA) ground-motion prediction equations. We attribute at least some of this difference to the relatively narrow width of the Hayward fault ruptures. The simulations suggest that the Spudich and Chiou (2008) directivity corrections to the NGA relations could be improved by including a dependence on the rupture speed and increasing the areal extent of rupture directivity with period. The simulations also indicate that the NGA relations may under-predict amplification in shallow sedimentary basins.

Aagaard, B T; Graves, R W; Rodgers, A; Brocher, T M; Simpson, R W; Dreger, D; Petersson, N A; Larsen, S C; Ma, S; Jachens, R C

2009-11-04T23:59:59.000Z

483

Seismic design technology for breeder reactor structures. Volume 1. Special topics in earthquake ground motion  

SciTech Connect (OSTI)

This report is divided into twelve chapters: seismic hazard analysis procedures, statistical and probabilistic considerations, vertical ground motion characteristics, vertical ground response spectrum shapes, effects of inclined rock strata on site response, correlation of ground response spectra with intensity, intensity attenuation relationships, peak ground acceleration in the very mean field, statistical analysis of response spectral amplitudes, contributions of body and surface waves, evaluation of ground motion characteristics, and design earthquake motions. (DLC)

Reddy, D.P.

1983-04-01T23:59:59.000Z

484

Nonlinear behavior of reinforced concrete structures subjected to ground motion  

E-Print Network [OSTI]

the procedure by which this Finite Element Code obtains the response of the proposed structure to 15 seconds of the El Centro time history scaled to represent an earthquake with a maximum ground acceleration ol' 0. 9g. ABAQUS ofi'ers several methods...

Abraham, Moises Alberto

1991-01-01T23:59:59.000Z

485

Ground state energy scaling laws during the onset and destruction  

E-Print Network [OSTI]

@cims.nyu.edu; Courant Institute, New York University, New York, NY 10012, USA 4 otto@iam.uni-bonn.de; Institut fGround state energy scaling laws during the onset and destruction of the intermediate state Abstract The intermediate state of a type-I superconductor is a classical ex- ample of energy

486

The MER/CIP Portal for Ground Operations Louise Chan*  

E-Print Network [OSTI]

The MER/CIP Portal for Ground Operations Louise Chan* Sanjay Desai* Matthew D'Ortenzio Robert E Portal We developed the Mars Exploration Rover/Collaborative Information Portal (MER/CIP) to facilitate MER operations. MER/CIP provides a cen- tralized, one-stop delivery platform integrating science

Filman, Robert E.

487

ENERGY REQUIREMENTS AND DIET OF THE CALIFORNIA GROUND SQUIRREL  

E-Print Network [OSTI]

and Wildlife Service, Denver Wildlife Research Center, Denver, Colorado 80225' SARAH R. WOODMANSEE, 1321 (SI'('Tmol,/'i1us lieeclwyi fislleri) iUe 0.75 ml!Wh. A ground squirrel's daily maintenance successive times. To confirm reliability of resting meta- bolic rate estimates, individual energy

488

Cleanup Verification Package for the 118-F-6 Burial Ground  

SciTech Connect (OSTI)

This cleanup verification package documents completion of remedial action for the 118-F-6 Burial Ground located in the 100-FR-2 Operable Unit of the 100-F Area on the Hanford Site. The trenches received waste from the 100-F Experimental Animal Farm, including animal manure, animal carcasses, laboratory waste, plastic, cardboard, metal, and concrete debris as well as a railroad tank car.

H. M. Sulloway

2008-10-02T23:59:59.000Z

489

The Ground State Energy of Heavy Atoms: the Leading Correction  

E-Print Network [OSTI]

For heavy atoms (large atomic number $Z$) described by no-pair operators in the Furry picture we find the ground state's leading energy correction. We compare the result with (semi-)empirical values and Schwinger's prediction showing more than qualitative agreement.

Michael Handrek; Heinz Siedentop

2014-11-21T23:59:59.000Z

490

Marketing Ground Source Heat Pump Advanced Applications that  

E-Print Network [OSTI]

Solar Thermal n Real World Examples Overview #12;n High First Cost n Incompetent Contractor n Operating Wallace President, Energy Environmental Corporation October 9, 2013 #12;Within the United States, what is the fastest growing market with the available capital and need for the benefits of ground source heat pumps

491

Answer Set Programming with Constraints using Lazy Grounding  

E-Print Network [OSTI]

in the design of knowledge build- ing blocks and methodologies (e.g., [2]). The development of novel international planning competitions) [23]. A problem like Pipeline (from IPC-5), whose first 9 instances can of ASP vitally builds on the use of first-order constructs. This introduces the need of a grounding phase

Rossi, Gianfranco

492

Ground Performance Measurements of the Glory Aerosol Polarimetry Steven Persha  

E-Print Network [OSTI]

a Raytheon Space and Airborne Systems b NASA Goddard Institute for Space Studies c NASA Goddard Space Flight . It was developed by Raytheon SAS under the Glory Program Office, GSFC 426, with scientific support from the Goddard to launch in November 2010. This paper focuses on the ground testing of APS at Raytheon. Radiometric

493

Grounded Cognition: Past, Present, and Future Lawrence W. Barsalou  

E-Print Network [OSTI]

Abstract Thirty years ago, grounded cognition had roots in philosophy, perception, cognitive linguistics continued developing in these areas, and it also took new forms in robot- ics, cognitive ecology, cognitive are amodal data structures processed independently of the brain's modal systems for perception, action

Barsalou, Lawrence W.

494

Testing from the ground up Software Hut 2008  

E-Print Network [OSTI]

Testing from the ground up Software Hut 2008 Tell me about testing · How do you test? · What do you test? · Why do you test? Why do we test? · Nobody writes perfect code. · The client wants to be sure. · Marks ­ one of the parts of the XP process mark is evidence of regular testing. Question 1

Holcombe, Mike

495

Simplifying Ground Water Transfers in Integrated Management Plans  

E-Print Network [OSTI]

-714 need new high-capacity wells in FA basins for e.g. ethanol plants so ethanol plant buys water and/or ground water rights from local irrigators buying water: use on-site former irrigation well for ethanol plant or else pipe water from existing from irrigation well to ethanol plant buying rights: cap

Nebraska-Lincoln, University of

496

Introduction Ground source heat pump (GSHP) systems are used  

E-Print Network [OSTI]

heating and cooling loads and their distribution over the year, as well as ground thermal properties reduced heating and cooling loads (as compared to conventional construction, USA, spitler@okstate.edu signhilD e.a. gehlin Technical Expert, Swedish Centre for Shallow Geothermal

497

Analysis and Modeling of Ground Operations at Hub Airports  

E-Print Network [OSTI]

constraint in the departure process at busy airports like Boston Logan International airport. For example1 Analysis and Modeling of Ground Operations at Hub Airports Kari Andersson1 , Francis Carr2 , Eric Feron3 and William D. Hall4 Abstract: Building simple and accurate models of hub airports can

Feron, Eric

498

CTB Ground Strap Size Document Number R ev  

E-Print Network [OSTI]

5 5 4 4 3 3 2 2 1 1 D D C C B B A A CTB Ground Strap Title Size Document Number R ev Date: Sheet o Body 5x"VNTC"#10awgrated33A Actualoperating=11Amax. Belden 83029 #18 awg rated 10 A max. Actual

Llope, William J.

499

Seismic shape parameters estimation and ground-roll suppression using  

E-Print Network [OSTI]

Seismic shape parameters estimation and ground-roll suppression using vector-sensor beamforming the problem of estimating the shape parameters of seismic wavefields in linear arrays. The purpose of the subsurface layers from the seismic wavefields registered by surface sensors. However, only the waves

Spagnolini, Umberto

500

Uranium in US surface, ground, and domestic waters. Volume 2  

SciTech Connect (OSTI)

The report Uranium in US Surface, Ground, and Domestic Waters comprises four volumes. Volumes 2, 3, and 4 contain data characterizing the location, sampling date, type, use, and uranium conentrations of 89,994 individual samples presented in tabular form. The tabular data in volumes 2, 3, and 4 are summarized in volume 1 in narrative form and with maps and histograms.

Drury, J.S.; Reynolds, S.; Owen, P.T.; Ross, R.H.; Ensminger, J.T.

1981-04-01T23:59:59.000Z