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1

Natural and Anthropogenic Ethanol Sources in North America and Potential Atmospheric Impacts of Ethanol Fuel Use  

E-Print Network [OSTI]

Natural and Anthropogenic Ethanol Sources in North America and Potential Atmospheric Impacts of Ethanol Fuel Use Dylan B. Millet,*, Eric Apel, Daven K. Henze,§ Jason Hill, Julian D. Marshall, Hanwant B-Chem chemical transport model to constrain present-day North American ethanol sources, and gauge potential long

Mlllet, Dylan B.

2

Sources and reservoirs of anthropogenic iodine-129 in western New York  

Science Journals Connector (OSTI)

Large quantities of iodine-129 have been released during nuclear weapons testing, and from nuclear power and fuel reprocessing plants. The distribution of this isotope was investigated in 110 surface water and soil samples from western New York (where several potential point sources are located) and other areas of North America, to evaluate its sources, transport pathways, and reservoirs. Elevated 129I concentrations associated with a former reprocessing facility at West Valley, NY, can be tracked to Lakes Erie and Ontario via site drainage, and for over 200 km via atmospheric transport, while only a negligible signal is associated with active power plants in the area. The results point to local reprocessing as the major source of 129I in western New York, while bomb fallout constitutes less than 0.5% of the signal. Surface soil is the dominant reservoir for anthropogenic 129I in this region. Across North America, 129I concentrations are lower than in western New York, although still significantly higher than expected weapons fallout. Reprocessing releases are currently seen to be the major source for elevated 129I concentrations on a global scale, in contrast to previous suggestions that most anthropogenic 129I was still derived from weapons fallout. Concentrations of 129I and iodine in surface reservoirs are generally found to be uncorrelated, implying that natural iodine and anthropogenic 129I are not yet in equilibrium. The results suggest that anthropogenic 129I is cycled between the atmosphere-soil-vegetation systems more rapidly than natural, pre-anthropogenic iodine.

Usha Rao; Udo Fehn

1999-01-01T23:59:59.000Z

3

Natural and Anthropogenic Ethanol Sources in North America and Potential Atmospheric Impacts of Ethanol  

E-Print Network [OSTI]

S1 Natural and Anthropogenic Ethanol Sources in North America and Potential Atmospheric Impacts of Ethanol Fuel Use Dylan B. Millet*,1 , Eric Apel2 , Daven K. Henze3 , Jason Hill1 , Julian D. Marshall1 INFORMATION Supporting Information contains a total of 12 pages, 1 table, and 7 figures. 1. AIRBORNE ETHANOL

Mlllet, Dylan B.

4

E-Print Network 3.0 - anthropogenic radiation sources Sample...  

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

: Ts F Equation 1 The largest radiative forcing is due to the anthropogenic greenhouse effect... impact" of an anthropogenic perturbation. This is defined as the difference...

5

Executive Summary An emissions inventory that identifies and quantifies a country's primary anthropogenic1 sources and sinks of  

E-Print Network [OSTI]

Executive Summary An emissions inventory that identifies and quantifies a country's primary emission sources and greenhouse gases to climate change. In 1992, the United States signed and ratified and make available...national inventories of anthropogenic emissions by sources and removals by sinks

Little, John B.

6

Identification of anthropogenic and natural dust sources using Moderate Resolution Imaging Spectroradiometer (MODIS)  

E-Print Network [OSTI]

of West Africa, which includes one of the most active natural dust sources and the highest population density on the continent, are processed. Sources are identified on the basis of the persistence in the western United States to expansion of livestock grazing in the early twentieth century. In West Africa

7

E-Print Network 3.0 - anthropogenic organic compounds Sample...  

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

impossible... and qualitatively, the entire empirical basis for the anthropogenic greenhouse effect, specifically ... Source: Schwartz, Stephen E. - Environmental Chemistry...

8

Anthropogenic radionuclides in the environment  

SciTech Connect (OSTI)

Studies of radionuclides in the environment have entered a new era with the renaissance of nuclear energy and associated fuel reprocessing, geological disposal of high-level nuclear wastes, and concerns about national security with respect to nuclear non-proliferation. This work presents an overview of anthropogenic radionuclide contamination in the environment, as well as the salient geochemical behavior of important radionuclides. We first discuss the following major anthropogenic sources and current development that contribute to the radionuclide contamination of the environment: (1) nuclear weapons program; (2) nuclear weapons testing; (3) nuclear power plants; (4) commercial fuel reprocessing; (5) geological repository of high-level nuclear wastes, and (6) nuclear accidents. Then, we summarize the geochemical behavior for radionuclides {sup 99}Tc, {sup 129}I, and {sup 237}Np, because of their complex geochemical behavior, long half-lives, and presumably high mobility in the environment. Biogeochemical cycling and environment risk assessment must take into account speciation of these redox-sensitive radionuclides.

Hu, Q; Weng, J; Wang, J

2007-11-15T23:59:59.000Z

9

Anthropogenic Biomes ver. 1 Anthropogenic biomes represent heterogeneous  

E-Print Network [OSTI]

defined by population density and vegetation cover. The 21 biomes are grouped into six major categoriesAnthropogenic Biomes ver. 1 Africa Anthropogenic biomes represent heterogeneous landscape mosaics: Populated irrigated cropland 34: Populated rainfed cropland 35: Remote croplands 41: Residential rangelands

Columbia University

10

Use of radiometric emanation method in the characterization of anthropogenic glass analogue for vitrification of nuclear waste  

Science Journals Connector (OSTI)

Anthropogenic analogues can serve as a valuable source of information about long-term behaviour of materials to be used in the nuclear waste repositories. The use of anthropogenic analogues can ... cement, concre...

V. Balek; Š. Palágyi; V. Havlová

2013-03-01T23:59:59.000Z

11

Inadvertent Climate Modification Due to Anthropogenic Lead  

SciTech Connect (OSTI)

The relationship between atmospheric particulate matter and the formation of clouds is among the most uncertain aspects of our current understanding of climate change1. One specific question that remains unanswered is how anthropogenic particulate emissions are affecting the nucleation of ice crystals. Satellites show ice clouds cover more than a third of the globe2 and models suggest that ice nucleation initiates the majority of terrestrial precipitation3. It is therefore not possible to adequately understand either climate change or the global water cycle without understanding ice nucleation. Here we show that lead-containing particles are among the most efficient ice nucleating substances commonly found in the atmosphere. Field observations were conducted with mass spectrometry and electron microscopy at two remote stations on different continents, far removed from local emissions. Laboratory studies within two cloud chambers using controlled experimental conditions support the field data. Because the dominate sources of particulate lead are anthropogenic emissions such as aviation fuel, power generation, smelting, and the re-suspension of residue from tetra-ethyl leaded gasoline4, it is likely that cloud formation and precipitation have been affected when compared to pre-industrial times. A global climate model comparing pre-industrial and anthropogenically perturbed conditions shows that lead-containing particles may be increasing the outgoing longwave radiation by 0.2 to 0.8 W m-2, thereby offsetting a portion of the warming attributed to greenhouse gases1.

Cziczo, Daniel J.; Stetzer, Olaf; Worringen, Annette; Ebert, Martin; Weinbruch, Stephan; Kamphus, M.; Gallavardin, S. J.; Curtius, J.; Borrmann, S.; Froyd, Karl D.; Mertes, S.; Mohler, Ottmar; Lohmann, U.

2009-05-01T23:59:59.000Z

12

Impacts of Atmospheric Anthropogenic Nitrogen on the  

E-Print Network [OSTI]

anthropogenic carbon dioxide may result from this atmospheric nitrogen fertilization, leading to a decreaseImpacts of Atmospheric Anthropogenic Nitrogen on the Open Ocean R. A. Duce,1 * J. LaRoche,2 K quantities of atmospheric anthropogenic fixed nitrogen entering the open ocean could account for up to about

Ward, Bess

13

Anthropogenic sounds ? Potential effects on fish  

Science Journals Connector (OSTI)

There is concern that human?generated sounds may have deleterious effects on fish. This paper will review some of what is currently known about these effects and consider the questions that have to be answered before developing models to enable "prediction" of sound effects on particular fish species. A major restriction is that there are few peer?reviewed data on effects of anthropogenic sources on fish. Extrapolation from these results is further confounded since experiments differ in many ways each of which may alter the resultant impact on fish. For example studies vary in sounds types tested (e.g. pile driving vs. ship noise) signal parameters (intensity number of repetitions) species used fish age etc. Moreover a singularly important issue is that while many of the issues and impact mechanisms are potentially amenable to experimental lab study the ultimate questions regarding the effects of sound on fish behavior need to field based and require long?term observations where behaviour of wild fish is not constrained. Only by observing fish in the wild will we ultimately understand if and how anthropogenic sounds impact fish both during exposure and more importantly for extended periods after the termination of the sound.

Arthur Popper; Svein Lo/kkeborg; Robert McCauley

2008-01-01T23:59:59.000Z

14

If Anthropogenic CO2 Emissions Cease, Will Atmospheric CO2 Concentration Continue to Increase?  

Science Journals Connector (OSTI)

If anthropogenic CO2 emissions were to suddenly cease, the evolution of the atmospheric CO2 concentration would depend on the magnitude and sign of natural carbon sources and sinks. Experiments using Earth system models indicate that the overall ...

Andrew H. MacDougall; Michael Eby; Andrew J. Weaver

2013-12-01T23:59:59.000Z

15

Climatic effects of 1950–2050 changes in US anthropogenic aerosols – Part 2: Climate response  

E-Print Network [OSTI]

We investigate the climate response to changing US anthropogenic aerosol sources over the 1950–2050 period by using the NASA GISS general circulation model (GCM) and comparing to observed US temperature trends. Time-dependent ...

Leibensperger, Eric Michael

16

Estimating the ability of birds to sustain additional human-caused mortalities using a simple decision  

E-Print Network [OSTI]

, impact with vehicles, wind turbines, or power lines). In order to assess the impact of addi- tional, and in a computationally straightforward manner. While this approach has many advantages, there are limitations. The PBR of sources, such as indigenous harvest, recreational hunting, collision with man-made objects (vehicles, wind

Fletcher, David

17

Lability of groundwater DON from pristine vs. anthropogenically influenced systems on Cape Cod, Massachusetts  

E-Print Network [OSTI]

that the composition and lability of DON varies with the land use history of its source. We collected groundwater from of bacterial productivity (0.16 µmol C L-1 day-1 ), and the highest productivity per cell. The Washburn Island 1991). Anthropogenic sources of nitrogen, such as fertilizer, wastewater disposal, and the fossil fuel

Vallino, Joseph J.

18

Climate response of the South Asian monsoon system to anthropogenic aerosols  

SciTech Connect (OSTI)

The equilibrium climate response to the total effects (direct, indirect and semi-direct effects) of aerosols arising from anthropogenic and biomass burning emissions on the South Asian summer monsoon system is studied using a coupled atmosphere-slab ocean model. Our results suggest that anthropogenic and biomass burning aerosols generally induce a reduction in mean summer monsoon precipitation over most parts of the Indian subcontinent, strongest along the western coastline of the Indian peninsula and eastern Nepal region, but modest increases also occur over the north western part of the subcontinent. While most of the noted reduction in precipitation is triggered by increased emissions of aerosols from anthropogenic activities, modest increases in the north west are mostly associated with decreases in local emissions of aerosols from forest fire and grass fire sources. Anthropogenic aerosols from outside Asia also contribute to the overall reduction in precipitation but the dominant contribution comes from aerosol sources within Asia. Local emissions play a more important role in the total rainfall response to anthropogenic aerosol sources during the early monsoon period, whereas both local as well as remote emissions of aerosols play almost equally important roles during the later part of the monsoon period. While precipitation responses are primarily driven by local aerosol forcing, regional surface temperature changes over the region are strongly influenced by anthropogenic aerosols from sources further away (non-local changes). Changes in local anthropogenic organic and black carbon emissions by as much as a factor of two (preserving their ratio) produce the same basic signatures in the model's summer monsoon temperature and precipitation responses.

Ganguly, Dilip; Rasch, Philip J.; Wang, Hailong; Yoon, Jin-Ho

2012-07-13T23:59:59.000Z

19

5, 52235252, 2005 Size-resolved source  

E-Print Network [OSTI]

) and included Chinese aerosol, soil dust, sea salt, biomass burning, coal combustion, oil heating furnace hand, anthropogenic sources such as coal combustion and biomass burning contributed about 60

Boyer, Edmond

20

Compilationof Regional to Global Inventoriesof Anthropogenic Emissions  

E-Print Network [OSTI]

Compilationof Regional to Global Inventoriesof Anthropogenic Emissions CarmenM. Benkovitz, Hajime inventories of emissions of the trace species included in the study at the appropriate sectoral, spatial on emissions is also required at high resolution for the design of policies aimed at reducing emissions

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

CHARACTERIZING THE INFLUENCE OF ANTHROPOGENIC EMISSIONS AND TRANSPORT VARIABILITY ON SULFATE AEROSOL CONCENTRATIONS AT MAUNA  

E-Print Network [OSTI]

CONCENTRATIONS AT MAUNA LOA OBSERVATORY Sulfate aerosol in the atmosphere has substantial impacts on human health confirmed that anthropogenic pollutants from Asian sources can be transported long distances with important implications for future air quality and global climate change. Located in the remote Pacific Ocean (19.54°N

Pierce, Jeffrey

22

ARM - Human Causes  

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

gases are not completely bad. The major constituents of the atmosphere, oxygen and nitrogen, do not act in the same way as the greenhouse package of carbon dioxide, methane,...

23

Anthropogenic sound—Introduction and overview of the ambient and anthropogenic environment  

Science Journals Connector (OSTI)

Interest in anthropogenic sound in the marine environment has been directed at concerns about the effects of sound on marine mammals. However fish make up a far larger and more diverse portion of the oceans than do marine mammals and they hold considerable economic importance internationally. This has led to a growing interest in the effect of anthropogenic sounds on fish in environments ranging from shallow waters near in?shore shipping lanes to the deep sea. Concerns for effects on fish are parallel to those for marine mammals and include issues ranging from the death of individual animals to the potential for behavioral changes that could lead to impacts on the survival of populations or species. While the body of data on the effects of anthropogenic sounds on fish is still small and much of the work is not in the peer?reviewed literature the number of peer?reviewed studies is growing. The purpose of this special session is to provide an overview of what we currently know about the effects of anthropogenic sound on fish help define the major outstanding questions on these effects and to provide the basis for discussion of current and future research in order to help resolve these questions.

2006-01-01T23:59:59.000Z

24

E-Print Network 3.0 - anthropogenically mediated eutrophication...  

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

Non-Proximal Ecosystem Service Summary: Anthropogenic land cover change erosion sediment eutrophication Precipitation RegulationStorm Events Clouds... productivity Color...

25

Distribution of anthropogenic CO2 in the Pacific Ocean  

E-Print Network [OSTI]

Distribution of anthropogenic CO2 in the Pacific Ocean C. L. Sabine,1 R. A. Feely,2 R. M. Key,3 J] This work presents an estimate of anthropogenic CO2 in the Pacific Ocean based on measurements from the WOCE tracers; 9355 Information Related to Geographic Region: Pacific Ocean; KEYWORDS: Pacific Ocean

26

Response of California temperature to regional anthropogenic aerosol  

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

Response of California temperature to regional anthropogenic aerosol Response of California temperature to regional anthropogenic aerosol changes Title Response of California temperature to regional anthropogenic aerosol changes Publication Type Journal Article Year of Publication 2008 Authors Novakov, Tihomir, Thomas W. Kirchstetter, Surabi Menon, and Jeffery Aguiar Journal Geophysical Research Letters Volume 35 Issue 19 Abstract In this paper, we compare constructed records of concentrations of black carbon (BC) - an indicator of anthropogenic aerosols - with observed surface temperature trends in California. Annual average BC concentrations in major air basins in California significantly decreased after about 1990, coincident with an observed statewide surface temperature increase. Seasonal aerosol concentration trends are consistent with observed seasonal temperature trends. These data suggest that the reduction in anthropogenic aerosol concentrations contributed to the observed surface temperature increase. Conversely, high aerosol concentrations may lower surface temperature and partially offset the temperature increase of greenhouse gases.

27

Damping of glacial-interglacial cycles from anthropogenic forcing  

E-Print Network [OSTI]

Climate variability over the past million years shows a strong glacial-interglacial cycle of ~100,000 years as a combined result of Milankovitch orbital forcing and climatic resonance. It has been suggested that anthropogenic contributions to radiative forcing may extend the length of the present interglacial, but the effects of anthropogenic forcing on the periodicity of glacial-interglacial cycles has received little attention. Here I demonstrate that moderate anthropogenic forcing can act to damp this 100,000 year cycle and reduce climate variability from orbital forcing. Future changes in solar insolation alone will continue to drive a 100,000 year climate cycle over the next million years, but the presence of anthropogenic warming can force the climate into an ice-free state that only weakly responds to orbital forcing. Sufficiently strong anthropogenic forcing that eliminates the glacial-interglacial cycle may serve as an indication of an epoch transition from the Pleistocene to the Anthropocene.

Haqq-Misra, Jacob

2014-01-01T23:59:59.000Z

28

E-Print Network 3.0 - anthropogenic vegetation fires Sample Search...  

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

dust aerosols VOCsDMS ET vegetation Anthropogenic waste byproduct air quality water management... combustionfires Anthropogenic crop production oil byproduct drilling...

29

E-Print Network 3.0 - anthropogenic land-use change Sample Search...  

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

Global Non-Proximal Ecosystem Service Summary: Anthropogenic Land Cover Change Wetlandswater management Dams River Engineering Land use impervious surfaces... Anthropogenic land...

30

Anthropogenic lead dynamics in the terrestrial and marine environment  

Science Journals Connector (OSTI)

...shown in gure 7, re ect the introduction and phase-out of leaded petrol. Measuring lead concentrations in ice near Camp Century, Greenland, Murozumi et al. (1969) rst observed the Arctic anthropogenic transient, with lead concentrations increas...

2002-01-01T23:59:59.000Z

31

Upper-tropospheric moistening in response to anthropogenic warming  

Science Journals Connector (OSTI)

Upper-tropospheric moistening in response to anthropogenic warming 10.1073/pnas.1409659111 Eui-Seok Chung Brian Soden B. J. Sohn Lei Shi aRosenstiel School of Marine and Atmospheric Science, University of Miami, Miami...

Eui-Seok Chung; Brian Soden; B. J. Sohn; Lei Shi

2014-01-01T23:59:59.000Z

32

Anthropogenic transformation of the biomes, 1700 to 2000  

E-Print Network [OSTI]

before and during the Industrial Revolution, from 1700 to 2000. Location Global. Methods Anthropogenic of the biosphere during the Industrial Revolution resulted about equally from land-use expansion into wildlands

Ellis, Erle C.

33

Quantification of continual anthropogenic pollutants released in swimming pools  

Science Journals Connector (OSTI)

Abstract Disinfection in swimming pools is often performed by chlorination, However, anthropogenic pollutants from swimmers will react with chlorine and form disinfection by-products (DBPs). \\{DBPs\\} are unwanted from a health point of view, because some are irritating, while others might be carcinogenic. The reduction of anthropogenic pollutants will lead to a reduction in DBPs. This paper investigates the continual release of anthropogenic pollutants by means of controlled sweat experiments in a pool tank during laboratory time-series experiments (LTS experiments) and also during on-site experiments (OS experiments) in a swimming pool. The sweat released during the OS and LTS experiments was very similar. The sweat rate found was 0.1–0.2 L/m2/h at water temperatures below 29 °C and increased linearly with increasing water temperatures to 0.8 L/m2/h at 35 °C. The continual anthropogenic pollutant release (CAPR) not only consisted of sweat, particles (mainly skin fragments and hair) and micro-organisms, but also sebum (skin lipids) has to be considered. The release of most components can be explained by the composition of sweat. The average release during 30 min of exercise is 250 mg/bather non-purgeable organic carbon (NPOC), 77.3 mg/bather total nitrogen (TN), 37.1 mg/bather urea and 10.1 mg/bather ammonium. The release of NPOC cannot be explained by the composition of sweat and is most probably a result of sebum release. The average release of other components was 1.31 × 109 # particles/bather (2–50 ?m), 5.2 ?g/bather intracellular adenosine triphosphate (cATP) and 9.3 × 106 intact cell count/bather (iCC). The pool water temperature was the main parameter to restrain the CAPR. This study showed that a significant amount of the total anthropogenic pollutants release is due to unhygienic behaviour of bathers.

M.G.A. Keuten; M.C.F.M. Peters; H.A.M. Daanen; M.K. de Kreuk; L.C. Rietveld; J.C. van Dijk

2014-01-01T23:59:59.000Z

34

Executive Summary of the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 19902009 1 n emissions inventory that identifies and quantifies a country's primary anthropogenic1  

E-Print Network [OSTI]

Executive Summary of the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990­2009 1 n emissions inventory that identifies and quantifies a country's primary anthropogenic1 In 1992, the United the relative contribution of different emission sources and greenhouse gases to climate change. 2 Parties

Little, John B.

35

Emission characteristics of black carbon in anthropogenic and biomass burning plumes over California  

E-Print Network [OSTI]

fuel (FF) combustion and biomass burning (BB), respectively. The enhancements of BC and LSP in BBEmission characteristics of black carbon in anthropogenic and biomass burning plumes over. (2012), Emission characteristics of black carbon in anthropogenic and biomass burning plumes over

Jimenez, Jose-Luis

36

E-Print Network 3.0 - anthropogenic impacts multi-proxy Sample...  

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

has little impact on the inverse estimates. 3.2. Oceanic Transport of Anthropogenic CO2 25... a relatively small impact on the air-sea flux of anthropogenic CO2 on...

37

Lifetime of Anthropogenic Climate Change: Millennial Time Scales of Potential CO2 and Surface Temperature Perturbations  

Science Journals Connector (OSTI)

Multimillennial simulations with a fully coupled climate–carbon cycle model are examined to assess the persistence of the climatic impacts of anthropogenic CO2 emissions. It is found that the time required to absorb anthropogenic CO2 strongly ...

M. Eby; K. Zickfeld; A. Montenegro; D. Archer; K. J. Meissner; A. J. Weaver

2009-05-01T23:59:59.000Z

38

Appendix: Mercury Emissions used in CAM-Chem/Hg model. 1. Anthropogenic emissions  

E-Print Network [OSTI]

Appendix: Mercury Emissions used in CAM-Chem/Hg model. 1. Anthropogenic emissions The anthropogenic emission of mercury is directly adopted from global mercury emission inventory [Pacyna et al., 2005]. The anthropogenic emissions are shown in annual averaged total mercury emissions. (Unit: µg/m2 /day) 2. Land

Meskhidze, Nicholas

39

Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic eects  

E-Print Network [OSTI]

Global distribution of N2O emissions from aquatic systems: natural emissions and anthropogenic, are increasing due to human activities. Our analysis suggests that a third of global anthropogenic N2O emission the remainder. Over 80% of aquatic anthropogenic N2O emissions are from the Northern Hemisphere mid

Seitzinger, Sybil

40

Geological and Anthropogenic Factors Influencing Mercury Speciation in Mine  

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

Geological and Anthropogenic Factors Influencing Mercury Speciation Geological and Anthropogenic Factors Influencing Mercury Speciation in Mine Wastes Christopher S. Kim,1 James J. Rytuba,2 Gordon E. Brown, Jr.3 1Department of Physical Sciences, Chapman University, Orange, CA 92866 2U.S. Geological Survey, Menlo Park, CA 94025 3Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305 Introduction Figure 1. Dr. Christopher Kim collects a mine waste sample from the Oat Hill mercury mine in Northern California. The majority of mercury mine wastes at these sites are present as loose, unconsolidated piles, facilitating the transport of mercury-bearing material downstream into local watersheds. Mercury (Hg) is a naturally occurring element that poses considerable health risks to humans, primarily through the consumption of fish which

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Coal Fly Ash as a Source of Iron in Atmospheric Dust. | EMSL  

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

Coal Fly Ash as a Source of Iron in Atmospheric Dust. Coal Fly Ash as a Source of Iron in Atmospheric Dust. Abstract: Anthropogenic coal fly ash aerosols may represent a...

42

Impact of natural and anthropogenic aerosols on stratocumulus and precipitation in the Southeast Pacific: A regional modeling study using WRF-Chem  

SciTech Connect (OSTI)

Cloud-system resolving simulations with the chemistry version of the Weather Research and Forecasting (WRF-Chem) model are used to quantify the impacts of regional anthropogenic and oceanic emissions on changes in aerosol properties, cloud macro- and microphysics, and cloud radiative forcing over the Southeast Pacific (SEP) during the VAMOS Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-REx) (15 Oct–Nov 16, 2008). The effects of oceanic aerosols on cloud properties, precipitation, and the shortwave forcing counteract those of anthropogenic aerosols. Despite the relatively small changes in Na concentrations (2-12%) from regional oceanic emissions, their net effect (direct and indirect) on the surface shortwave forcing is opposite and comparable or even larger in magnitude compared to those of regional anthropogenic emissions over the SEP. Two distinct regions are identified in the VOCALS-REx domain. The near-coast polluted region is characterized with strong droplet activation suppression of small particles by sea-salt particles, the more important role of the first than the second indirect effect, low surface precipitation rate, and low aerosol-cloud interaction strength associated with anthropogenic emissions. The relatively clean remote region is characterized with large contributions of Cloud Condensation Nuclei (CCN, number concentration denoted by NCCN) and droplet number concentrations (Nd) from non-local sources (lateral boundaries), a significant amount of surface precipitation, and high aerosol-cloud interactions under a scenario of five-fold increase in anthropogenic emissions. In the clean region, cloud properties have high sensitivity (e.g., 13% increase in cloud-top height and a 9% surface albedo increase) to the moderate increase in CCN concentration (?Nccn = 13 cm-3; 25%) produced by a five-fold increase in regional anthropogenic emissions. The increased anthropogenic aerosols reduce the precipitation amount over the relatively clean remote ocean. The reduction of precipitation (as a cloud water sink) more than doubles the wet scavenging timescale, resulting in an increased aerosol lifetime in the marine boundary layer. Therefore, the aerosol impacts on precipitation are amplified by the positive feedback of precipitation on aerosol. The positive feedback ultimately alters the cloud micro- and macro-properties, leading to strong aerosol-cloud-precipitation interactions. The higher sensitivity of clouds to anthropogenic aerosols over this region is also related to a 16% entrainment rate increase due to anthropogenic aerosols. The simulated aerosol-cloud-precipitation interactions are stronger at night over the clean marine region, while during the day, solar heating results in more frequent decoupling, thinner clouds, reduced precipitation, and reduced sensitivity to anthropogenic emissions. The simulated high sensitivity to the increased anthropogenic emissions over the clean region suggests that the perturbation of the clean marine environment with anthropogenic aerosols may have a larger effect on climate than that of already polluted marine environments.

Yang, Qing; Gustafson, William I.; Fast, Jerome D.; Wang, Hailong; Easter, Richard C.; Wang, Minghuai; Ghan, Steven J.; Berg, Larry K.; Leung, Lai-Yung R.; Morrison, H.

2012-09-28T23:59:59.000Z

43

The effect of anthropogenic emissions corrections on the seasonal cycle of atmospheric CO2  

SciTech Connect (OSTI)

A previous study (Erickson et al. 2008) approximated the monthly global emission estimates of anthropogenic CO{sub 2} by applying a 2-harmonic Fourier expansion with coefficients as a function of latitude to annual CO{sub 2} flux estimates derived from United States data (Blasing et al. 2005) that were extrapolated globally. These monthly anthropogenic CO{sub 2} flux estimates were used to model atmospheric concentrations using the NASA GEOS-4 data assimilation system. Local variability in the amplitude of the simulated CO{sub 2} seasonal cycle were found to be on the order of 2-6 ppmv. Here we used the same Fourier expansion to seasonally adjust the global annual fossil fuel CO{sub 2} emissions from the SRES A2 scenario. For a total of four simulations, both the annual and seasonalized fluxes were advected in two configurations of the NCAR Community Atmosphere Model (CAM) used in the Carbon-Land Model Intercomparison Project (C-LAMP). One configuration used the NCAR Community Land Model (CLM) coupled with the CASA (carbon only) biogeochemistry model and the other used CLM coupled with the CN (coupled carbon and nitrogen cycles) biogeochemistry model. All four simulations were forced with observed sea surface temperatures and sea ice concentrations from the Hadley Centre and a prescribed transient atmospheric CO{sub 2} concentration for the radiation and land forcing over the 20th century. The model results exhibit differences in the seasonal cycle of CO{sub 2} between the seasonally corrected and uncorrected simulations. Moreover, because of differing energy and water feedbacks between the atmosphere model and the two land biogeochemistry models, features of the CO{sub 2} seasonal cycle were different between these two model configurations. This study reinforces previous findings that suggest that regional near-surface atmospheric CO{sub 2} concentrations depend strongly on the natural sources and sinks of CO{sub 2}, but also on the strength of local anthropogenic CO{sub 2} emissions and geographic position. This work further attests to the need for remotely sensed CO{sub 2} observations from space.

Hoffman, Forrest M [ORNL] [ORNL; Erickson III, David J [ORNL] [ORNL; Blasing, T J [ORNL] [ORNL

2009-01-01T23:59:59.000Z

44

ANTHROPOGENIC FIRES, FOREST RESOURCES, AND LOCAL LIVELIHOODS AT CHYULU HILLS, KENYA.  

E-Print Network [OSTI]

??Anthropogenic fires are rife in rural Africa as people use fire to modify landscapes for their livelihoods. Although burning occurs as a very significant practice… (more)

Kamau, Peter Ngugi

2013-01-01T23:59:59.000Z

45

E-Print Network 3.0 - anthropogenic impacts recorded Sample Search...  

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

details Summary: reconstruction of anthropogenic N inputs into a Bay Area serpentine ecosystem using tree ring 15 N analysis High... into changes in plant-available N and...

46

E-Print Network 3.0 - anthropogenic pollutants combine Sample...  

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

. Res., 2007. Mickley, L.J., et al., Effects of future climate change on regional air pollution episodes... . Anthropogenic emissions including greenhouse gases and...

47

E-Print Network 3.0 - anthropogenic interference dangerous Sample...  

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

change, when the science... .e. (1) anthropogenic emissions and (2) the enhanced greenhouse effect (higher radiative forcing... , the contrast suggests that the natural system is...

48

Atmospheric outflow of anthropogenic semivolatile organic compounds from East Asia in Spring 2004  

SciTech Connect (OSTI)

To estimate the emissions of anthropogenic semivolatile organic compounds (SOCs) from East Asia and to identify unique SOC molecular markers in Asian air masses, high-volume air samples were collected on the island of Okinawa, Japan between 22 March and 2 May 2004. Contributions from different source regions (China, Japan, the Koreas, Russia, and ocean/local) were estimated by use of source region impact factors (SRIFs). Elevated concentrations of hexachlorobenzene (HCB), hexachlorcyclohexanes (HCHs), dichlorodiphenyltrichloroethanes (DDTs), and particulate-phase polycyclic aromatic hydrocarbons (PAHs) were attributed to air masses from China. A large proportion of the variation in the current-use pesticides, gas-phase PAHs, and polychlorinated biphenyl (PCB) concentrations was explained by meteorology. Chlordanes showed a technical mixture profile and similar concentrations regardless of source region. {alpha}/{gamma} HCH and trans/cis chlordane ratios did not vary significantly with different source regions and had regional averages of 2.5 {+-} 1.0 and 1.2 {+-} 0.3, respectively. Particulate-phase PAH concentrations were significantly correlated (p value {lt} 0.05) with other incomplete combustion byproduct concentrations, including elemental mercury (Hg{sup 0}), CO, NOx{asterisk}, black carbon, submicrometer aerosols, and SO{sub 2}. By use of measured PAH, CO, and black carbon concentrations and estimated CO and black carbon emission inventories, the emission of six carcinogenic particulate-phase PAHs was estimated to be 1518-4179 metric tons/year for Asia and 778-1728 metric tons/year for China, respectively. These results confirm that East Asian outflow contains significant emissions of carcinogenic particulate-phase PAHs. 39 refs., 3 figs.

Toby Primbs; Staci Simonich; David Schmedding; Glenn Wilson; Dan Jaffe; Akinori Takami; Shungo Kato; Shiro Hatakeyama; Yoshizumi Kajii [Oregon State University, Corvallis, OR (United States). Departments of Chemistry and Environmental and Molecular Toxicology

2007-05-15T23:59:59.000Z

49

Direct and semi-direct radiative effects of anthropogenic aerosols in the Western United States: Seasonal  

E-Print Network [OSTI]

a regional climate model (RCM) in conjunction with the aerosol fields from a GEOS-Chem chemical- transport emissions and the seasonal low-level winds. The RCM-simulated anthropogenic aerosol radiative effects vary, respectively, following the seasonal AOD. In Arizona-New Mexico (AZNM), the effect of anthropogenic sulfates

Liou, K. N.

50

A SLIPPERY SLOPE: HOW MUCH GLOBAL WARMING CONSTITUTES "DANGEROUS ANTHROPOGENIC INTERFERENCE"?  

E-Print Network [OSTI]

A SLIPPERY SLOPE: HOW MUCH GLOBAL WARMING CONSTITUTES "DANGEROUS ANTHROPOGENIC INTERFERENCE on the global warming that can be tolerated without risking dangerous anthropogenic interference with climate. I" mainly as a metaphor for the danger posed by global warming. So I changed "Hell" to "disaster." What

Hansen, James E.

51

Anthropogenic and Natural Emissions of Mercury (Hg) in the northeastern United Jeffrey MacAdam Sigler  

E-Print Network [OSTI]

Abstract Anthropogenic and Natural Emissions of Mercury (Hg) in the northeastern United States impact may depend on the emission rate. Anthropogenic Hg emissions in the United States are poorly characterized. Natural Hg emissions are poorly understood worldwide, due to lack of data or measurement systems

Lee, Xuhui

52

Anthropogenic forcing dominates sea level rise since 1850 S. Jevrejeva,1  

E-Print Network [OSTI]

Anthropogenic forcing dominates sea level rise since 1850 S. Jevrejeva,1 A. Grinsted,2 and J. C October 2009. [1] The rate of sea level rise and its causes are topics of active debate. Here we use 200 years sea level rise is mostly associated with anthropogenic factors. Only 4 ± 1.5 cm (25

Binford, Michael W.

53

The rare earth element distribution over Europe: geogenic and anthropogenic sources  

Science Journals Connector (OSTI)

...increased risk of liver and bone cancer. REE toxicity has been investigated...such as seawater tends to be depleted in Ce on REE plots. The FOREGS...very similar to that of high uranium values described by Plant et...G., The distribution of uranium over Europe: geological and...

L. Fedele; J.A. Plant; B. De Vivo; A. Lima

54

Sources of Mercury Exposure for US Seafood Consumers: Implications for Policy  

E-Print Network [OSTI]

Background: Recent policies attempting to reduce adverse effects of methylmercury exposure from fish consumption in the United States have targeted reductions in anthropogenic emissions from U.S. sources.

Sunderland, Elsie M.

55

An estimate of monthly global emissions of anthropogenic CO2: Impact on the seasonal cycle of atmospheric CO2  

E-Print Network [OSTI]

An estimate of monthly global emissions of anthropogenic CO2: Impact on the seasonal cycle of anthropogenic CO2 are presented. Approximating the seasonal CO2 emission cycle using a 2-harmonic Fourier series with regions of strong anthropogenic CO2 emissions. Citation: Erickson, D. J., III, R. T. Mills, J. Gregg, T. J

Hoffman, Forrest M.

56

E-Print Network 3.0 - anthropogenic radionuclide concentrations...  

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

Although... materials containing elevated concentrations of terrestrial ... Source: Yucca Mountain Project, US EPA Collection: Environmental Sciences and Ecology 2 Journal of...

57

E-Print Network 3.0 - anthropogenic environmental alterations...  

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

of Environmental Sciences, University of Venice, Ca' Foscari, Dorsoduro 2137, I-30123 Venice Source: Howat, Ian M. - Byrd Polar Research Center & School of Earth Sciences, Ohio...

58

Distribution of anthropogenic fill material within the Y-12 plant area, Oak Ridge, Tennessee  

SciTech Connect (OSTI)

Widespread groundwater contamination in the vicinity of the Oak Ridge Y-12 Plant has been documented through a variety of monitoring efforts since the late 1970s. Various contaminants, most notably volatile organic compounds (VOCs), have migrated through the subsurface and formed extensive contaminant plumes within the Knox Aquifer/Maynardville Limestone, the primary exit pathway for groundwater transport within the Bear Creek Valley. In 1991, an integrated, comprehensive effort (Upper East Fork Poplar Creek [UEFPC] Phase I monitoring network) was initiated in order to (1) identify contaminant source areas within the industrialized portions of the plant and (2) define contamination migration pathways existing between the source areas and the Knox Aquifer/Maynardville Limestone. Data obtained during previous studies have indicated that extensive zones of fill and buried utility trenches may serve as preferred migration pathways. In addition, portions of UEFPC were rerouted, with several of its tributaries being filled during the initial construction of the plant. These filled surface drainage features are also believed to serve as preferred migration pathways. The identification of preferred contaminant migration pathways within the Y-12 Plant area is essential and required to refine the current Bear Creek Valley groundwater conceptual model and to assist in the selection of technically feasible and cost effective remedial strategies. This report presents the results of an initial investigation of the occurrence of manmade (anthropogenic) fill and its effect upon groundwater movement within the plant area. These interpretations are subject to revision and improvement as further investigation of the effects of the fill upon contaminant migration progresses.

Sutton, G.E. Jr. [Tennessee Technological Univ., Cookeville, TN (United States)]|[Oak Ridge Institute for Science and Education, TN (United States); Field, S.M. [Oak Ridge Institute for Science and Education, TN (United States)

1995-10-01T23:59:59.000Z

59

Microsoft Word - NEPA SECARB Anthropogenic Final EA 2.24.2011.docx  

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

85 85 ENVIRONMENTAL ASSESSMENT For The Southeast Regional Carbon Sequestration Partnership Phase III Anthropogenic Test Project U.S. DEPARTMENT OF ENERGY NATIONAL ENERGY TECHNOLOGY LABORATORY March 2011 U.S. Department of Energy SECARB Phase III Anthropogenic Test National Energy Technology Laboratory Final Environmental Assessment i March 2011 ACKNOWLEDGEMENT This report was prepared with the support of the U.S. Department of Energy (DOE) under Award No. DE-FC26-05NT42590. U.S. Department of Energy SECARB Phase III Anthropogenic Test National Energy Technology Laboratory Final Environmental Assessment ii March 2011 COVER SHEET Responsible Agency: U.S. Department of Energy (DOE) Title: Southeast Regional Carbon Sequestration Partnership Phase III Anthropogenic Test

60

Tracing anthropogenic carbon dioxide and methane emissions to fossil fuel and cement producers, 1854–2010  

Science Journals Connector (OSTI)

It is now broadly accepted that anthropogenic climate change presents a serious threat to the health, prosperity, and stability of human communities,...2007; World Bank 2012b; Hoeppe 2011; Busby 2007). The intern...

Richard Heede

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Anthropogenic Disturbance of Western Gray Whale Behavior Off Sakhalin Island, Russia  

E-Print Network [OSTI]

. Spatial, temporal, environmental, and acoustic (pulse and/or continuous) sound levels and non-sound related anthropogenic variables were included as explanatory variables to examine their influence on movement and respiration response variables...

Gailey, Glenn Andrew

2013-05-14T23:59:59.000Z

62

Anthropogenic Carbon Dioxide Emissions and Ocean Acidification: The Potential Impacts on Ocean Biodiversity  

Science Journals Connector (OSTI)

Most of the focus in recent years on the potential impacts of rising levels of carbon dioxide in the atmosphere linked to anthropogenic activities ... oceans as a consequence of the influx of carbon dioxide absor...

William C. G. Burns

2008-01-01T23:59:59.000Z

63

Long-term effects of anthropogenic CO2 emissions simulated with a complex earth system model  

E-Print Network [OSTI]

Long-term effects of anthropogenic CO2 emissions simulated with a complex earth system model Uwe earth system model con- sisting of an atmospheric general circulation model, an ocean general

Winguth, Arne

64

Understanding the Anthropogenically Forced Change of Equatorial Pacific Trade Winds in Coupled Climate Models  

Science Journals Connector (OSTI)

Understanding the change of equatorial Pacific trade winds is pivotal for understanding the global mean temperature change and the El Niño–Southern Oscillation (ENSO) property change. The weakening of the Walker circulation due to anthropogenic ...

Baoqiang Xiang; Bin Wang; Juan Li; Ming Zhao; June-Yi Lee

2014-11-01T23:59:59.000Z

65

Comparison of emissions from on-road sources using a mobile laboratory under various driving and operational sampling modes  

E-Print Network [OSTI]

Mobile sources produce a significant fraction of the total anthropogenic emissions burden in large cities and have harmful effects on air quality at multiple spatial scales. Mobile emissions are intrinsically difficult to ...

Zavala-Perez, Miguel Angel

66

No energetic cost of anthropogenic disturbance in a songbird  

Science Journals Connector (OSTI)

...disturbance, and diverting energy towards survival...they should redirect energy allocation to activities...extent than other sources of human disturbance...recently, measures of energy expenditure were...estimates of energy consumption. Although comparative...training sites for the US military troops...

2009-01-01T23:59:59.000Z

67

Diurnal tracking of anthropogenic CO2 emissions in the Los Angeles basin  

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

Diurnal tracking of anthropogenic CO2 emissions in the Los Angeles basin Diurnal tracking of anthropogenic CO2 emissions in the Los Angeles basin megacity during spring 2010 Title Diurnal tracking of anthropogenic CO2 emissions in the Los Angeles basin megacity during spring 2010 Publication Type Journal Article Year of Publication 2012 Authors Newman, Sally, Seongeun Jeong, Marc L. Fischer, Xiaomei Xu, Christine L. Haman, Barry Lefer, Sergio Alvarez, Bernhard Rappenglueck, Eric A. Kort, Arlyn E. Andrews, Jeffrey Peischl, Kevin R. Gurney, Charles E. Miller, and Yuk L. Yung Journal Atmospheric Chemistry and Physics Volume 13 Pagination 4359-4372 Abstract Attributing observed CO2 variations to human or natural cause is critical to deducing and tracking emissions from observations. We have used in situ CO2, CO, and planetary boundary layer height (PBLH) measurements recorded during the CalNex-LA (CARB et al., 2008) ground campaign of 15 May-15 June 2010, in Pasadena, CA, to deduce the diurnally varying anthropogenic component of observed CO2 in the megacity of Los Angeles (LA). This affordable and simple technique, validated by carbon isotope observations and WRF-STILT (Weather Research and Forecasting model - Stochastic Time-Inverted Lagrangian Transport model) predictions, is shown to robustly attribute observed CO2 variation to anthropogenic or biogenic origin over the entire diurnal cycle. During CalNex-LA, local fossil fuel combustion contributed up to ~50% of the observed CO2 enhancement overnight, and ~100% of the enhancement near midday. This suggests that sufficiently accurate total column CO2 observations recorded near midday, such as those from the GOSAT or OCO-2 satellites, can potentially be used to track anthropogenic emissions from the LA megacity.

68

Anthropogenic NO2 in the Atmosphere: Estimates of the Column Content and Radiative Forcing  

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

Anthropogenic NO Anthropogenic NO 2 in the Atmosphere: Estimates of the Column Content and Radiative Forcing A. N. Rublev Institution of Molecular Physics Russian Research Center Kurchatov Institute Moscow, Russia N Chubarova Meteorological Observatory of Moscow State University Moscow, Russia G. Gorchakov Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow, Russia Introduction The work summarizes the different methodical aspects, firstly, the use of atmosphere optical depths presented in Aerosol Robotic Network (AERONET) data for NO 2 column retrievals, and, secondly, its radiative forcing calculated as difference between integral solar fluxes absorbed in the atmosphere with and without NO 2 under given air mass or the sun zenith angle.

69

Anthropogenic noise affects risk assessment and attention: the distracted prey hypothesis  

Science Journals Connector (OSTI)

...Walsh 2006 Urban effects on native avifauna: a review. Landscape Urban Plan. 74, 46-69. ( doi:10.1016/j.physletb...Hatch, L. T. , and A. J. Wright 2007 A brief review of anthropogenic sound in the oceans. Int. J...

2010-01-01T23:59:59.000Z

70

Lead isotopes in sediments of the Loire River (France): natural versus anthropogenic origin  

E-Print Network [OSTI]

Lead isotopes in sediments of the Loire River (France): natural versus anthropogenic origin Philippe Négrel Emmanuelle Petelet-Giraud BRGM, Orléans, France Sediments along the Loire River (central France) were investigated by means of lead isotopes determined on the labile sediment fraction, or acid

Paris-Sud XI, Université de

71

SEDIMENTS, SEC 4 SEDIMENT-ECOLOGY INTERACTIONS POSITION PAPER Anthropogenic pollutants affect ecosystem services  

E-Print Network [OSTI]

SEDIMENTS, SEC 4 · SEDIMENT-ECOLOGY INTERACTIONS · POSITION PAPER Anthropogenic pollutants affect ecosystem services of freshwater sediments: the need for a "triad plus x" approach Sabine Ulrike Gerbersdorf November 2010 /Accepted: 24 April 2011 # Springer-Verlag 2011 Abstract Purpose Freshwater sediments

Cirpka, Olaf Arie

72

Dominance of the Southern Ocean in anthropogenic carbon and heat uptake in CMIP5 models  

Science Journals Connector (OSTI)

We assess the uptake, transport and storage of oceanic anthropogenic carbon and heat over the period 1861 to 2005 in a new set of coupled carbon-climate Earth System models conducted for the fifth Coupled Model Intercomparison Project (CMIP5), ...

Thomas L. Frölicher; Jorge L. Sarmiento; David J. Paynter; John P. Dunne; John P. Krasting; Michael Winton

73

Polar firn air reveals large-scale impact of anthropogenic mercury emissions during the 1970s  

Science Journals Connector (OSTI)

...exhibit a similar trend: a large decrease during...reservoirs occurs on a large scale. The connection...Asia has become the largest contributor of anthropogenic...19, 56) from one borehole at depths of 15, 25...into the borehole after drilling to the sampling depth...

Xavier Faïn; Christophe P. Ferrari; Aurélien Dommergue; Mary R. Albert; Mark Battle; Jeff Severinghaus; Laurent Arnaud; Jean-Marc Barnola; Warren Cairns; Carlo Barbante; Claude Boutron

2009-01-01T23:59:59.000Z

74

A white paper on Effects of Anthropogenic Pollution on the Atmospheric  

E-Print Network [OSTI]

1 A white paper on Effects of Anthropogenic Pollution on the Atmospheric Chemistry of the Tropical Brazilian Partner Organizations National Institute for Amazonian Research (INPA)1 The Large-Scale Biosphere-Atmosphere by the atmospheric oxidation of trace gases to low volatility compounds (Chen et al. 2009). These products can

75

Global atmospheric transport and source-receptor1 relationships for arsenic2  

E-Print Network [OSTI]

. Our global arsenic15 emission inventory shows a global total anthropogenic arsenic emission of 21.4 Gg1 Global atmospheric transport and source-receptor1 relationships for arsenic2 3 Ka-Ming Wai1 in the global environment.10 They can be transported long distance in the atmosphere but the global source-11

Wu, Shiliang

76

Heterogeneous nucleation of ice on anthropogenic organic particles collected in Mexico City  

SciTech Connect (OSTI)

This study reports on heterogeneous ice nucleation activity of predominantly organic (or coated with organic material) anthropogenic particles sampled within and around the polluted environment of Mexico City. The onset of heterogeneous ice nucleation was observed as a function of particle temperature (Tp), relative humidity (RH), nucleation mode, and particle chemical composition which is influenced by photochemical atmospheric aging. Particle analyses included computer controlled scanning electron microscopy with energy dispersive analysis of X-rays (CCSEM/EDX) and scanning transmission X-ray microscopy with near edge X-ray absorption fine structure spectroscopy (STXM/NEXAFS). In contrast to most laboratory studies employing proxies of organic aerosol, we show that anthropogenic organic particles collected in Mexico City can potentially induce ice nucleation at experimental conditions relevant to cirrus formation. The results suggest a new precedent for the potential impact of organic particles on ice cloud formation and climate.

Knopf, D.A.; Wang, B.; Laskin, A.; Moffet, R.C.; Gilles, M.K.

2010-06-20T23:59:59.000Z

77

Assessing the Effects of Anthropogenic Aerosols on Pacific Storm Track Using a Multiscale Global Climate Model  

SciTech Connect (OSTI)

Atmospheric aerosols impact weather and global general circulation by modifying cloud and precipitation processes, but the magnitude of cloud adjustment by aerosols remains poorly quantified and represents the largest uncertainty in estimated forcing of climate change. Here we assess the impacts of anthropogenic aerosols on the Pacific storm track using a multi-scale global aerosol-climate model (GCM). Simulations of two aerosol scenarios corresponding to the present day and pre-industrial conditions reveal long-range transport of anthropogenic aerosols across the north Pacific and large resulting changes in the aerosol optical depth, cloud droplet number concentration, and cloud and ice water paths. Shortwave and longwave cloud radiative forcing at the top of atmosphere are changed by - 2.5 and + 1.3 W m-2, respectively, by emission changes from pre-industrial to present day, and an increased cloud-top height indicates invigorated mid-latitude cyclones. The overall increased precipitation and poleward heat transport reflect intensification of the Pacific storm track by anthropogenic aerosols. Hence, this work provides for the first time a global perspective of the impacts of Asian pollution outflows from GCMs. Furthermore, our results suggest that the multi-scale modeling framework is essential in producing the aerosol invigoration effect of deep convective clouds on the global scale.

Wang, Yuan; Wang, Minghuai; Zhang, Renyi; Ghan, Steven J.; Lin, Yun; Hu, Jiaxi; Pan, Bowen; Levy, Misti; Jiang, Jonathan; Molina, Mario J.

2014-05-13T23:59:59.000Z

78

Fast and Slow Responses of the South Asian Monsoon System to Anthropogenic Aerosols  

SciTech Connect (OSTI)

Using a global climate model with fully predictive aerosol life cycle, we investigate the fast and slow responses of the South Asian monsoon system to anthropogenic aerosol forcing. Our results show that the feedbacks associated with sea surface temperature (SST) change caused by aerosols play a more important role than the aerosol's direct impact on radiation, clouds and land surface (rapid adjustments) in shaping the total equilibrium climate response of the monsoon system to aerosol forcing. Inhomogeneous SST cooling caused by anthropogenic aerosols eventually reduces the meridional tropospheric temperature gradient and the easterly shear of zonal winds over the region, slowing down the local Hadley cell circulation, decreasing the northward moisture transport, and causing a reduction in precipitation over South Asia. Although total responses in precipitation are closer to the slow responses in general, the fast component dominates over land areas north of 25°N. Our results also show an east-west asymmetry in the fast responses to anthropogenic aerosols causing increases in precipitation west of 80°E but decreases east of it.

Ganguly, Dilip; Rasch, Philip J.; Wang, Hailong; Yoon, Jin-Ho

2012-09-25T23:59:59.000Z

79

Determination of the risk associated with the natural and anthropogenic radionuclides from the soil of Skardu in Central Karakoram  

Science Journals Connector (OSTI)

......235U (0.72 % of uranium), 232Th (100 % of...The mass fraction of uranium, thorium and potassium...24Na and others). Depleted uranium is another anthropogenic...hepatic, bone and kidney cancers and leukaemia. It is......

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

2013-09-01T23:59:59.000Z

80

Evolution of Anthropogenic Pb and Pb isotopes in the deep North Atlantic Ocean and the Indian Ocean  

E-Print Network [OSTI]

Pb and Pb isotopes in the ocean have varied on decadal to centennial time scales due to anthropogenic Pb inputs. Thus, tracing the temporal variation of Pb and Pb isotopes in the ocean provides information on the major ...

Lee, Jong-Mi, Ph. D. Massachusetts Institute of Technology

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

The effect of anthropogenic development on sediment loading to bays on St. John, U.S. Virgin Islands  

E-Print Network [OSTI]

In order to assess the impact of anthropogenic development on sediment delivery rates to bays on St. John, U.S.V.I., I developed a sediment loading prediction model. Based on the modified universal soil loss equation, this ...

McCreery, Helen F

2007-01-01T23:59:59.000Z

82

Laboratory-determined concentration factors and elimination rates of some anthropogenic radionuclides in marine vertebrates and invertebrates. Final report  

SciTech Connect (OSTI)

Literature is reviewed and summarized with regard to concentration factor values and biological elimination rates determined in laboratory experiments for several anthropogenic radionuclides. Comparison is made with concentration factors measured in situ in the marine environment.

Harrison, F.L.

1985-07-01T23:59:59.000Z

83

Determination of the risk associated with the natural and anthropogenic radionuclides from the soil of Skardu in Central Karakoram  

Science Journals Connector (OSTI)

......235U (0.72 % of uranium), 232Th (100 % of...The mass fraction of uranium, thorium and potassium...24Na and others). Depleted uranium is another anthropogenic...inhalation can cause several health diseases such as chronic......

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

2013-09-01T23:59:59.000Z

84

United States Bureau of Ocean Energy Management, Regulation and Enforcement: Filling Data Gaps to Better Understand the Effects of Anthropogenic Noise on Marine Life  

Science Journals Connector (OSTI)

The offshore energy industries (both oil/gas and renewables) introduce anthropogenic noise into the marine environment through exploration (seismic), development and production (pile driving and drilling), dec...

Jill Lewandowski; Elizabeth Burkhard…

2012-01-01T23:59:59.000Z

85

E-Print Network 3.0 - anthropogenic pollutant diffusion Sample...  

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

; Geosciences 15 Chapter 2: Sources and Deposition of Trace Metals 2.1 Main Sources of Atmospheric Pollution...7 Summary: landmasses...

86

Contaminant Sources  

Science Journals Connector (OSTI)

Contaminant sources include almost every component in the manufacturing process: people, materials, processing equipment, and manufacturing environments. People can generate contaminating particles, gases, conden...

Alvin Lieberman

1992-01-01T23:59:59.000Z

87

Ion source  

DOE Patents [OSTI]

A magnetic filter for an ion source reduces the production of undesired ion species and improves the ion beam quality. High-energy ionizing electrons are confined by the magnetic filter to an ion source region, where the high-energy electrons ionize gas molecules. One embodiment of the magnetic filter uses permanent magnets oriented to establish a magnetic field transverse to the direction of travel of ions from the ion source region to the ion extraction region. In another embodiment, low energy 16 eV electrons are injected into the ion source to dissociate gas molecules and undesired ion species into desired ion species.

Leung, Ka-Ngo (Hercules, CA); Ehlers, Kenneth W. (Alamo, CA)

1984-01-01T23:59:59.000Z

88

Competitive Sourcing  

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

COMPETITIVE SOURCING COMPETITIVE SOURCING ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ Report on Competitive Sourcing Results Fiscal Year 2006 May 2007 Executive Office of the President Office of Management and Budget TABLE OF CONTENTS Executive Summary ...................................................................................... 1 Introduction................................................................................................. 4 I. The big picture ......................................................................................... 4 II. How public-private competition was used in FY 2006 .................................... 6 A. Anticipated benefits from competition in FY 2006

89

Long-term ice sheetclimate interactions under anthropogenic greenhouse forcing simulated with a complex Earth System Model  

E-Print Network [OSTI]

with a complex Earth System Model Miren Vizcai´no � Uwe Mikolajewicz � Matthias Gro¨ger � Ernst Maier-Reimer �-millennia simulations have been performed with a complex Earth System Model (ESM) for different anthropogenic climate climate change Á Meridional overturning circulation Á Earth system modelling Á Sea level 1 Introduction

Winguth, Arne

90

Global partitioning of NOx sources using satellite observations: Relative roles of fossil fuel combustion, biomass burning and  

E-Print Network [OSTI]

combustion, biomass burning and soil emissions Lyatt Jaegle´ ,a Linda Steinberger,a Randall V. Martinbc anthropogenic emissions, mostly resulting from fossil fuel combustion and biomass burning, are superimposed-CHEM chemical transport model. Top-down NOx sources are partitioned among fuel combustion (fossil fuel

Lyatt Jaeglé

91

Competitive Sourcing  

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

Competitive Sourcing Competitive Sourcing The Department of Energy's (DOE) Competitive Sourcing program is a management initiative aimed at improving DOE's performance and reducing the Department's operational costs. The program is governed by Office of Management and Budget (OMB) Circular A- 76, Performance of Commercial Activities, dated May 29, 2003. The commercial activities selected for review and competition include functions performed by government employees that are readily available in the private sector, and where the potential for efficiencies, regardless of the winning provider, are highly likely. The candidate functions are chosen from the Department's annual Federal Activities Inventory Reform (FAIR) Act Inventory and subjected to a feasibility review to determine if a prudent business case can be made to enter

92

Passive acoustic monitoring of biological and anthropogenic sounds at America’s first offshore wind farm  

Science Journals Connector (OSTI)

Cape Wind situated in Nantucket Sound Massachusetts is poised to become America’s first offshore windfarm. Our objective is to establish baseline (pre-construction) sound levels of human and biological activity including diel and seasonal variability of various sound types at the construction site and three nearby comparison sites. Acoustic recorders have been deployed since April 2012 recording on a 10% duty cycle (sample rate: 80 kHz). Biological contributions to the local soundscape are primarily fish sounds with the dominant signal likely being cusk eel (Family Ophidiidae) calls. These calls which are composed of stereotyped pulses with an average bout duration of 3.3 ±0.8 s and mean peak frequency of 1030 ±200 Hz show both seasonal and diel variation. Dense choruses were detected during summer (July) but limited activity occurred in the fall and winter. During vocal periods detections occurred throughout the day but peaked near dusk. Vessel traffic also showed diel and seasonal trends with peaks during the daytime and in the summer which indicates that boat activity can be tracked acoustically. These trends in biological and anthropogenic activity provide key baseline records for evaluating the influence of windfarm construction and operation on a local US soundscape.

T. Aran Mooney; Maxwell B. Kaplan; Luca Lamoni; Aimee Boucher; Laela S. Sayigh

2013-01-01T23:59:59.000Z

93

Identification of Anthropogenic Climate Change Using a Second-Generation Reanalysis  

SciTech Connect (OSTI)

Changes in the height of the tropopause provide a sensitive indicator of human effects on climate. A previous attempt to identify human effects on tropopause height relied on information from 'first-generation' reanalyses of past weather observations. Climate data from these initial model-based reanalyses have well-documented deficiencies, raising concerns regarding the robustness of earlier detection work that employed these data. Here, we address these concerns using information from the new second-generation ERA-40 reanalysis. Over 1979 to 2001, tropopause height increases by nearly 200 meters in ERA-40, partly due to tropospheric warming. The spatial pattern of height increase is consistent with climate model predictions of the expected response to anthropogenic influences alone, significantly strengthening earlier detection results. Atmospheric temperature changes in two different satellite datasets are more highly correlated with changes in ERA-40 than with those in a first-generation reanalysis, thus illustrating the improved quality of temperature information in ERA-40. Our results provide support for claims that human activities have warmed the troposphere and cooled the lower stratosphere over the last several decades of the 20th century, and that both of these changes in atmospheric temperature have contributed to an overall increase in tropopause height.

Santer, B; Wiglet, T; Simmons, A; Kallberg, P; Kelly, G; Uppala, S; Ammann, C; Boyle, J; Bruggemann, W; Doutriaux, C; Fiorino, M; Mears, C; Meehl, G; Sausen, R

2004-06-02T23:59:59.000Z

94

The implications of using hydrocarbon fuels to generate electricity for hydrogen fuel powered automobiles on electrical capital, hydrocarbon consumption, and anthropogenic emissions  

Science Journals Connector (OSTI)

This paper considers some of the impacts of adopting hydrogen fuel cell powered electric automobiles in the US. The change will need significant adjustments to the electrical generation industry including additional capital and hydrocarbon fuel consumption as well as impacting anthropogenic greenhouse emissions. Examining the use of three fuels to generate hydrogen fuels, using three production methods, distributed in three geographic scenarios, we determine that while the change reduces anthropogenic greenhouse emissions with minimal additional electrical generation capital expenditures, it accelerates the use of natural gas. Electrolysis provides a sustainable, longer-term solution, but requires more capital investment in electrical generation and yields an increase in anthropogenic greenhouse emissions.

Derek Tittle; Jingwen Qu

2013-01-01T23:59:59.000Z

95

E-Print Network 3.0 - anthropogenic iron cycles Sample Search...  

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

iron cycle control atmospheric CO ? 12;The Global Carbon Cycle 70 times more carbon in ocean than... on ocean biological activity Iron cycle processes Modeling ... Source:...

96

E-Print Network 3.0 - anthropogenic uranium concentration Sample...  

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

Source: Oak Ridge National Laboratory Fossil Energy Program Collection: Fossil Fuels 6 geology and Ranger 1 open-pit uranium mine in Australia Summary: in ore formations with...

97

COMPETITIVE SOURCING  

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

COMPETITIVE SOURCING COMPETITIVE SOURCING EXECUTIVE STEERING GROUP MEETING PROCEEDINGS June 17, 2002 8:30 am - 11:00 am Room 5E-069 ATTENDEES John Gordon Robert Card Bruce Carnes Kathy Peery Brendan Danaher, AFGE Tony Lane Karen Evans Bill Sylvester Claudia Cross Brian Costlow Laurie Smith Helen Sherman Frank Bessera Rosalie Jordan Dennis O'Brien Mark Hively Robin Mudd Steven Apicella AGENDA 8:30 a.m. - 8:35 a.m. Opening Remarks 8:35a.m. - 8:55 a.m. Executive Steering Group roles and responsibilities, A-76 status, and talking points Team Briefings 8:55 a.m. - 9:20 a.m. Information Technology Study 9:20 a.m. - 9:45 a.m. Financial Services Study

98

Desert dust and anthropogenic aerosol interactions in the Community Climate System Model coupled-carbon-climate model  

SciTech Connect (OSTI)

Coupled-carbon-climate simulations are an essential tool for predicting the impact of human activity onto the climate and biogeochemistry. Here we incorporate prognostic desert dust and anthropogenic aerosols into the CCSM3.1 coupled carbon-climate model and explore the resulting interactions with climate and biogeochemical dynamics through a series of transient anthropogenic simulations (20th and 21st centuries) and sensitivity studies. The inclusion of prognostic aerosols into this model has a small net global cooling effect on climate but does not significantly impact the globally averaged carbon cycle; we argue that this is likely to be because the CCSM3.1 model has a small climate feedback onto the carbon cycle. We propose a mechanism for including desert dust and anthropogenic aerosols into a simple carbon-climate feedback analysis to explain the results of our and previous studies. Inclusion of aerosols has statistically significant impacts on regional climate and biogeochemistry, in particular through the effects on the ocean nitrogen cycle and primary productivity of altered iron inputs from desert dust deposition.

Mahowald, Natalie [Cornell University; Rothenberg, D. [Cornell University; Lindsay, Keith [National Center for Atmospheric Research (NCAR); Doney, Scott C. [Woods Hole Oceanographic Institution; Moore, Jefferson Keith [University of California, Irvine; Randerson, James T. [University of California, Irvine; Thornton, Peter E [ORNL; Jones, C. D. [Hadley Center, Devon, England

2011-02-01T23:59:59.000Z

99

Long-Term Instrumental and Reconstructed Temperature Records Contradict Anthropogenic Global Warming  

E-Print Network [OSTI]

Monthly instrumental temperature records from 5 stations in the northern hemisphere are analyzed, each of which is local and over 200 years in length, as well as two reconstructed long-range yearly records - from a stalagmite and from tree rings that are about 2000 years long. In the instrumental records, the steepest 100-year temperature fall happened in the 19th century and the steepest rise in the 20th century, both events being of about the same magnitude. Evaluation by the detrended fluctuation analysis (DFA) yields Hurst exponents that are in good agreement with the literature. DFA, Monte Carlo simulations, and synthetic records reveal that both 100-year events were caused by external trends. In contrast to this, the reconstructed records show stronger 100-year rises and falls as quite common during the last 2000 years. These results contradict the hypothesis of an unusual (anthropogenic) global warming during the 20th century. As a hypothesis, the sun's magnetic field, which is correlated with sunspot numbers, is put forward as an explanation. The long-term low-frequency fluctuations in sunspot numbers are not detectable by the DFA in the monthly instrumental records, resulting in the common low Hurst exponents. The same does not hold true for the 2000-year-long reconstructed records, which explains both their higher Hurst exponents and the higher probabilities of strong 100-year temperature fluctuations. A long-term synthetic record that embodies the reconstructed sunspot number fluctuations includes the different Hurst exponents of both the instrumental and the reconstructed records and, therefore, corroborates the conjecture.

Horst-Joachim Lüdecke

2011-10-09T23:59:59.000Z

100

Baseline for Climate Change: Modeling Watershed Aquatic Biodiversity Relative to Environmental and Anthropogenic Factors  

SciTech Connect (OSTI)

Objectives of the two-year study were to (1) establish baselines for fish and macroinvertebrate community structures in two mid-Atlantic lower Piedmont watersheds (Quantico Creek, a pristine forest watershed; and Cameron Run, an urban watershed, Virginia) that can be used to monitor changes relative to the impacts related to climate change in the future; (2) create mathematical expressions to model fish species richness and diversity, and macroinvertebrate taxa and macroinvertebrate functional feeding group taxa richness and diversity that can serve as a baseline for future comparisons in these and other watersheds in the mid-Atlantic region; and (3) heighten people’s awareness, knowledge and understanding of climate change and impacts on watersheds in a laboratory experience and interactive exhibits, through internship opportunities for undergraduate and graduate students, a week-long teacher workshop, and a website about climate change and watersheds. Mathematical expressions modeled fish and macroinvertebrate richness and diversity accurately well during most of the six thermal seasons where sample sizes were robust. Additionally, hydrologic models provide the basis for estimating flows under varying meteorological conditions and landscape changes. Continuations of long-term studies are requisite for accurately teasing local human influences (e.g. urbanization and watershed alteration) from global anthropogenic impacts (e.g. climate change) on watersheds. Effective and skillful translations (e.g. annual potential exposure of 750,000 people to our inquiry-based laboratory activities and interactive exhibits in Virginia) of results of scientific investigations are valuable ways of communicating information to the general public to enhance their understanding of climate change and its effects in watersheds.

Maurakis, Eugene G

2010-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Bromine enrichment in marsh sediments as a marker of environmental changes driven by Grand Solar Minima and anthropogenic activity (Caminha, NW of Portugal)  

Science Journals Connector (OSTI)

Abstract A sediment core collected in Caminha tidal marsh, NW Portugal, was used to assess bromine (Br) signal over the last ca. 1700 years. The Br temporal variability reflects its close relationship with soil/sediment organic matter (OM) and also alterations in Br biogeochemical recycling in marsh environment. The highest Br enrichment in sediments was found during the Maunder Solar Minimum, a major solar event characterized by lower irradiance (TSI) and temperature, increased cloudiness and albedo. The obtained results suggest that those climate-induced changes weakened the natural mechanisms that promote Br biochemical transformations, driven by both living plants metabolism and plant litter degradation, with the ensuing generation of volatile methyl bromide (CH3Br). It seems that the prevailing climate conditions during the Maunder favoured the retention of more Br in marsh ecosystem, ultimately decreasing the biogenic Br emissions to the atmosphere. During the 20th century, the Br pattern in sediments appears to mirror likewise anthropogenic sources. The significant correlation (p < 0.05) between Br/OM ratios and Pb contents in sediments after 1934 suggests a common source. This is most probably related with the rise, massive consumption and prohibition of leaded gasoline, where ethylene dibromide was added as lead scavenger to antiknock mixtures. More regionally, the concerted use of flame retardants on forest fire management, covering the 1980s through mid-1990s in the north of Portugal and Galicia, could be responsible for the observed increase of sediment Br (relatively to Pb) pool of this tidal marsh. Although man-made brominated compounds are being phased-out since the inception of the 1992 Montreal Protocol, the Caminha tidal marsh sedimentary record showed that Br levels only started to decline after 2002.

J. Moreno; F. Fatela; E. Leorri; M.F. Araújo; F. Moreno; J. De la Rosa; M.C. Freitas; T. Valente; D.R. Corbett

2015-01-01T23:59:59.000Z

102

Radionuclides in the Natural–Anthropogenic System Comprising a Nuclear Power Plant and a Cooling Reservoir  

Science Journals Connector (OSTI)

The sources of technological radionuclides coming into the ecosystem of a nuclear power plant (NPP) cooling reservoir are considered and estimated. The information ... The activity reserve in the ecosystems of th...

Yu. A. Egorov

2002-07-01T23:59:59.000Z

103

Developing Infrastructure & Community Resilience to Natural & Human-Caused Disasters  

E-Print Network [OSTI]

to move forward resilience efforts in the tri-state/DC region, (4) roles of the National Science Fukushima Daiichi nuclear disaster and when there is a focus on dealing with such disasters, now is the time

Aydilek, Ahmet

104

COMPETITIVE SOURCING  

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

EXECUTIVE STEERING GROUP Meeting Proceedings October 30, 2002 Room 6E-069, 10:30 - 12:00 Agenda Opening Remarks Bruce Carnes Competitive Sourcing Update Denny O'Brien Team Briefings Team Leads ESG Discussion/Wrap up Bruce Carnes Attendees Bruce Carnes, Acting Chair MaryAnn Shebek Robert Card Prentis Cook Ambassador Brooks Tony Lane Kyle McSlarrow Karen Evans Suzanne Brennan, NTEU Claudia Cross Brian Costlow Helen Sherman Frank Bessera Laurie Morman Denny O'Brien Travis McCrory Bill Pearce Jeff Dowl Mark Hively Steven Apicella Robin Mudd Bruce Carnes chaired the meeting and began with welcoming NTEU to the meeting. In regard to the OMB's Balanced Scorecard, the Department has achieved a Green on progress and we are close to achieving a yellow on status.

105

Sources and sinks of carbon dioxide in the Arctic regions  

SciTech Connect (OSTI)

The data base required to adequately ascertain seasonal source and sink strengths in the arctic regions is difficult to obtain. However, there are now a reasonable quantity of data for this polar region to estimate sources and sinks within the Arctic which may contribute significantly to the annual tropospheric CO/sub 2/ concentration fluctuation. The sea-ice-air and the sea-air interfaces account for most of the contribution to the sources and sinks for carbon dioxide. Although the arctic and subarctic region is small in extent, it certainly is not impervious and ice sealed. Our estimate, based on historical data and current research, indicates that the Arctic, which is about 4% of the earth's surface, is an annual net sink for approx. 10/sup 15/ g CO/sub 2/ accounting for an equivalent of approx. 3% of the annual anthropogenic contribution of CO/sub 2/ to the troposphere.

Gosink, T. A.; Kelley, J. J.

1982-01-01T23:59:59.000Z

106

Radiation source  

DOE Patents [OSTI]

A device and method for relativistic electron beam heating of a high-density plasma in a small localized region. A relativistic electron beam generator or accelerator produces a high-voltage electron beam which propagates along a vacuum drift tube and is modulated to initiate electron bunching within the beam. The beam is then directed through a low-density gas chamber which provides isolation between the vacuum modulator and the relativistic electron beam target. The relativistic beam is then applied to a high-density target plasma which typically comprises DT, DD, or similar thermonuclear gas at a density of 10.sup.17 to 10.sup.20 electrons per cubic centimeter. The target gas is ionized prior to application of the relativistic electron beam by means of a laser or other preionization source to form a plasma. Utilizing a relativistic electron beam with an individual particle energy exceeding 3 MeV, classical scattering by relativistic electrons passing through isolation foils is negligible. As a result, relativistic streaming instabilities are initiated within the high-density target plasma causing the relativistic electron beam to efficiently deposit its energy into a small localized region of the high-density plasma target.

Thode, Lester E. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

107

STEP—A Solar Chemical Process to End Anthropogenic Global Warming. II: Experimental Results  

Science Journals Connector (OSTI)

Alternative chemical processes are needed to decrease the level of atmospheric greenhouse gases. ... STEP provides a different pathway for solar energy conversion, at high efficiency, and is capable of proactively removing carbon dioxide and also generating a range of useful chemicals without greenhouse gas emission. ... The second, termed Hy-STEP (on the right), does not separate sunlight and instead directs sunlight to heating the electrolysis, and the electrical energy for electrolysis is generated by a separate source (such as by photovoltaic, solar thermal electric, wind turbine, hydro, nuclear, or fossil fuel generated electronic charge). ...

Stuart Licht; Baohui Wang; Hongjun Wu

2011-05-19T23:59:59.000Z

108

Reply to ‘Quantifying the consensus on anthropogenic global warming in the scientific literature: A re-analysis’  

Science Journals Connector (OSTI)

Abstract Cook et al. (2013) (C13) found that 97% of relevant climate papers endorse anthropogenic global warming (AGW), consistent with previous independent studies. Tol (in press) (T14) agrees that the scientific literature ‘overwhelmingly supports’ AGW, but disputes C13?s methods. We show that T14?s claims of a slightly lower consensus result from a basic calculation error that manufactures approximately 300 nonexistent rejection papers. T14?s claimed impact on consensus due to the reconciliation process is of the wrong sign, with reconciliation resulting in a slight increase (<0.2%) in the consensus percentage. Allegations of data inconsistency are based on statistics unrelated to consensus. Running the same tests using appropriate consensus statistics shows no evidence of inconsistency. We confirm that the consensus is robust at 97±1%.

John Cook; Dana Nuccitelli; Andrew Skuce; Peter Jacobs; Rob Painting; Rob Honeycutt; Sarah A. Green; Stephan Lewandowsky; Mark Richardson; Robert G. Way

2014-01-01T23:59:59.000Z

109

Microalgal biofilms on common yew needles in relation to anthropogenic air pollution in urban Prague, Czech Republic  

Science Journals Connector (OSTI)

Abstract Excessive occurrence of microalgae on needles of gymnosperms was reported for the first time in the 1980s from the Scandinavian countries. Since then, it has been repeatedly encountered on needles from various European forest habitats. The abundance of these biofilms has been related to the climatic conditions, such as temperature and precipitation, as well as to the air pollution by nitrogen and sulfur oxides. Urban areas typically have relatively homogenous climates and profound variation in levels of air pollution. Therefore, variation in the occurrence of biofilms in localities within an urban area may be related to local anthropogenic air pollution. We investigated the abundance of biofilms occurring on needles of the common yew (Taxus baccata) in the city of Prague, Czech Republic. The biofilms were composed of algae, fungi and particulate matter. The cover area of the biofilms was marginally explained by a positive influence of short-term maximum atmospheric levels of nitrogen dioxide (NO2). The amounts of the microalgae were also positively influenced by short-term maximum NO2 levels. In addition, high atmospheric levels of particulate matter (PM10) were related to low abundance of algae. The microbial biofilms growing on widely cultivated conifers, such as the common yew, form one of the few commonly occurring natural communities in highly urbanized central areas of temperate European cities. Consequently, we propose that microscopic analysis of biofilms may be used as a rapid and cheap method to collect ecological data. Such data may be used in biomonitoring schemes illustrating the effects of anthropogenic air pollution on natural microcommunities in urban areas.

Radka Nováková; Ji?í Neustupa

2015-01-01T23:59:59.000Z

110

150 G. Marland et al. / Climate Policy 3 (2003) 149157 Strategies to mitigate anthropogenic climate change recognize that carbon sequestration in the terrestrial biosphere  

E-Print Network [OSTI]

anthropogenic climate change recognize that carbon sequestration in the terrestrial biosphere can reduce to create a system of credits and debits wherein emission or sequestration of carbon in the biosphere; Carbon sequestration; Land use change; Land surface change; Surface energy balance 1. Introduction Human

Niyogi, Dev

111

Capital Sources and Providers  

Broader source: Energy.gov [DOE]

The most important elements of a clean energy lending program are the capital source and the capital provider. The capital source provides the funding to pay for clean energy projects, and the capital provider manages those funding sources. For example, a bank might use its customers' deposits as a capital source, but as the capital provider, the bank manages the investment of that capital.

112

GEOMETRIC SOURCE SEPARATION: MERGING CONVOLUTIVE SOURCE  

E-Print Network [OSTI]

adaptive beamforming algorithms by a cross-power criteria, we gain new geometric source separation with convo- lutive blind source separation. We concentrate on cross-power spectral min- imization which is su to ambiguities in the choice of separating lters. There are in theory multiple lters that invert the room

Parra, Lucas C.

113

Detecting anthropogenic influences on climate with an atmospheric model forced with observed variations in sea surface temperature  

SciTech Connect (OSTI)

Six ensembles of four simulations with the Hadley Centre atmospheric general circulation model (HADAM2a) have been carried out for late 1948 to the end of 1994 with different specified atmospheric forcing distributions. These simulations are being used to understand the role of different forcing processes in determining the observed climate variations during the second half of the twentieth century. All ensembles started from different initial conditions and were forced with specified global observed monthly sea ice and sea surface temperature distributions using the GISST1.1 data set. The approach used deterministic sampling of observed variations in climate rather than a coupled model. The technique was also different in that it looked at the smaller residual climate signal due to direct anthropogenic over and above those captured in ocean surface temperatures. The results indicate that this method is a useful complement to approaches based on coupled models, aided by the fact that some of the residual climate signals are almost as large as the full signals seen in coupled models, particularly in the stratosphere. 9 refs., 4 figs.

Folland, C.K.; Sexton, D. [Hadley Centre, Bracknell (United Kingdom); Karoly, D. [Monash Univ., Victoria (Australia)] [and others

1997-11-01T23:59:59.000Z

114

Influence of coal as an energy source on environmental pollution  

SciTech Connect (OSTI)

This article considers the influence of coal energy on environmental pollution. Coal is undoubtedly part of the greenhouse problem. The main emissions from coal combustion are sulfur dioxide (SO{sub 2}), nitrogen oxides (NOx), particulates, carbon dioxide (CO{sub 2}), and mercury (Hg). Since 1980, despite a 36% increase in electricity generation and more than a 50% increase in coal use, electric utility SO{sub 2} and NOx emissions have declined significantly. Globally, the largest source of anthropogenic greenhouse gas (GHG) emissions is CO{sub 2} from the combustion of fossil fuels - around 75% of total GHG emissions covered under the Kyoto Protocol. At the present time, coal is responsible for 30-40% of world CO{sub 2} emission from fossil fuels.

Balat, M. [University of Mahallesi, Trabzon (Turkey)

2007-07-01T23:59:59.000Z

115

Statistical and Realistic Numerical Model Investigations of Anthropogenic and Climatic Factors that Influence Hypoxic Area Variability in the Gulf of Mexico  

E-Print Network [OSTI]

, Steven DiMarco George Jackson Committee Members, Robert Hetland Thomas Bianchi Piers Chapman Steven Davis Head of Department, Piers Chapman May 2012 Major Subject: Oceanography iii ABSTRACT Statistical and Realistic Numerical Model... Investigations of Anthropogenic and Climatic Factors that Influence Hypoxic Area Variability in the Gulf of Mexico. (May 2012) Yang Feng, B. S., Ocean University of China; M.S., Ocean University of China Co?Chairs of Advisory Committee: Dr. Steven Di...

Feng, Yang

2012-07-16T23:59:59.000Z

116

Coal Fly Ash as a Source of Iron in Atmospheric Dust  

SciTech Connect (OSTI)

Anthropogenic coal fly ash aerosols may represent a significant source of bioavailable iron in the open ocean. Few measurements have been made to compare the solubility of atmospheric iron from anthropogenic aerosols and other sources. We report an investigation of the iron dissolution of three fly ash samples in acidic aqueous solutions and compare the solubilities with that of Arizona test dust, a reference material of mineral dust. The effects of pH, cloud processing, and solar irradiation on Fe solubility were explored. Similar to previously reported results on mineral dust, iron in aluminosilicate phases provide predominant dissolved iron compared with iron in oxides. Iron solubility of fly ash is higher than Arizona test dust, especially at the higher pH conditions investigated. Simulated atmospheric processing elevates iron solubility due to significant changes in the morphology aluminosilicate glass, a dominantly material in fly ash particle. Iron continuously releases into the aqueous solution as fly ash particles break up into smaller fragments. The assessment of dissolved atmospheric iron deposition fluxes, and their effect on the biogeochemistry at ocean surface should be constrained by taking into account the source, environment pH, Fe speciation, and solar radiation.

Chen, Haihan; Laskin, Alexander; Baltrusaitis, Jonas; Gorski, Christopher A.; Scherer, Michelle; Grassian, Vicki H.

2012-01-18T23:59:59.000Z

117

Ion Sources - Cyclotron  

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

Sources Sources The 88-Inch Cyclotron is fed by three Electron Cyclotron Resonance (ECR) high-charge-state ion sources, the ECR, the AECR, and VENUS, currently the most powerful ECR ion source in the world. Built to answer the demand for intense heavy ion beams, these high performance ion sources enable the 88-Inch Cyclotron to accelerate beams of ions from hydrogen to uranium. The ECR ion sources allow the efficient use of rare isotopes of stable elements, either from natural or enriched sources. A variety of metallic ion beams are routinely produced in our low temperature oven (up to 600°C) and our high temperature oven (up to 2100°C). Furthermore, the ability to produce "cocktails" (mixtures of beams) for the Berkeley Accelerator Space Effects (BASE) Facility adds tremendously to the flexibility of the 88-Inch Cyclotron.

118

Impacts of Anthropogenic Sound  

E-Print Network [OSTI]

and P. J. Fish (1998). Broadband spectra of seismic surveyfrom a seismic watergun. J Acoust Soc Am 111(6): Fish, J. F.

Hildebrand, John A

2005-01-01T23:59:59.000Z

119

Characterization of submicron particles influenced by mixed biogenic and anthropogenic emissions using high-resolution aerosol mass spectrometry: results from CARES  

SciTech Connect (OSTI)

The Carbonaceous Aerosols and Radiative Effects Study (CARES) took place in the Sacramento Valley of California in summer 2010. We present results obtained at Cool, CA, the T1 site of the project ({approx}40 km downwind of urban emissions from Sacramento), where we deployed an Aerodyne high resolution time-of-flight aerosol mass spectrometer (HR-ToF-AMS) in parallel with complementary instrumentation to characterize the sources and processes of submicron particles (PM1). Cool is located at the foothill of the Sierra Nevada Mountains, where intense biogenic emissions are periodically mixed with urban outflow transported by daytime southwesterly winds from the Sacramento metropolitan area. The particle mass loading was low (3.0 {micro}gm{sup -3} on average) and dominated by organics (80% of the PM1 mass) followed by sulfate (9.9 %). Organics and sulfate appeared to be externally mixed, as suggested by their different time series (r2 = 0.13) and size distributions. Sulfate showed a bimodal distribution with a droplet mode peaking at {approx}400nm in vacuum aerodynamic diameter (Dva), and a condensation mode at {approx}150 nm, while organics generally displayed a broad distribution in 60-600nm (Dva). New particle formation and growth events were observed almost every day, emphasizing the roles of organics and sulfate in new particle growth, especially that of organics. The organic aerosol (OA) had a nominal formula of C{sub 1}H{sub 1.38}N{sub 0.004}O{sub 0.44}, thus an average organic mass-to-carbon (OM/OC) ratio of 1.70. Two different oxygenated OA (OOA, 90% of total OA mass) and a hydrocarbon-like OA (HOA, 10 %) were identified by Positive matrix factorization (PMF) of the high resolution mass spectra. The more oxidized MO-OOA (O/C = 0.54) corresponded to secondary OA (SOA) primarily influenced by biogenic emissions, while the less oxidized LO-OOA (O/C = 0.42) corresponded to SOA associated with urban transport. The HOA factor corresponded to primary emissions mainly due to local traffic. Twenty three periods of urban plumes from T0 (Sacramento) to T1 (Cool) were identified using the Weather Research and Forecasting model coupled with Chemistry (WRF-Chem). The average PM1 mass loading was much higher in urban plumes (3.9 {micro}gm{sup -3}) than in air masses dominated by biogenic SOA (1.8 {micro}gm{sup -3}). The change in OA mass relative to CO ({Delta}OA/{Delta}CO) varied in the range of 5-196 {micro}gm{sup -3} ppm{sup -1}, reflecting large variability in SOA production. The highest {Delta}OA/{Delta}CO were reached when urban plumes arrived at Cool in the presence of a high concentration of biogenic volatile organic compounds (BVOCs=isoprene+monoterpenes+2-methyl-3-buten-2- ol [MBO]+methyl chavicol). This ratio, which was 77 {micro}gm{sup -3} ppm{sup -1} on average when BVOCs > 2 ppb, is much higher than when urban plumes arrived in a low biogenic VOCs environment (28 {micro}gm{sup -3} ppm{sup -1} when BVOCs < 0.7 ppb) or during other periods dominated by biogenic SOA (40 {micro}gm{sup -3} ppm{sup -1}). The results from this study demon10 strate that SOA formation is enhanced when anthropogenic emissions interact with biogenic precursors.

Setyan, Ari; Zhang, Qi; Merkel, M.; Knighton, Walter B.; Sun, Y.; Song, Chen; Shilling, John E.; Onasch, Timothy B.; Herndon, Scott C.; Worsnop, Douglas R.; Fast, Jerome D.; Zaveri, Rahul A.; Berg, Larry K.; Wiedensohler, A.; Flowers, B. A.; Dubey, Manvendra K.; Subramanian, R.

2012-09-11T23:59:59.000Z

120

Spallation Neutron Source, SNS  

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

Spallation Neutron Source Spallation Neutron Source Providing the most intense pulsed neutron beams in the world... Accumulator Ring Commissioning Latest Step for Spallation Neutron Source The Spallation Neutron Source, located at Oak Ridge National Laboratory, has passed another milestone on the way to completion this year--the commissioning of the proton accumulator ring. Brookhaven led the design and construction of the accumulator ring, which will allow an order of magnitude more beam power than any other facility in the world. The Spallation Neutron Source (SNS) is an accelerator-based neutron source being built in Oak Ridge, Tennessee, by the U.S. Department of Energy. The figure on the right shows a schematic of the accumulator ring and transport beam lines that are being designed and built by Brookhaven

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Sources and Electrodynamics  

Science Journals Connector (OSTI)

A new kind of particle theory is being explored, one that is intermediate in concept between the extremes of S matrix and field theory. It employs the methods of neither approach. There are no operators, and there is no appeal to analyticity in momentum space. It is a phenomenological theory, and cognizant that measurements are operations in space and time. Particles are defined realistically by reference to their creation or annihilation in suitable collisions. The source is introduced as an abstraction of the role played by all the other particles involved in such acts. Through the use of sources the production and detection of particles, as well as their interaction, are incorporated into the theoretical description. There is a creative principle that replaces the devices of other formulations. It is an insistence upon the generality of the space-time description of the coupling among sources that is inferred from a specific spatio-temporal arrangement, in which various particles propagate between sources. Standard quantum-mechanical and relativistic requirements, imposed on the source description of noninteracting particles, imply the existence of the two statistics and the connection with spin. In this situation sources are only required to emit and absorb the mass of the corresponding particle. Particle dynamics is introduced by an extension of the source concept. It is considered meaningful for a source to emit several particles with the same total quantum numbers as a single particle, if sufficient mass is available. This is most familiar as the photon radiation that accompanies the emission of charged particles. The new types of sources introduced in this way imply new couplings among sources, which supply still further varieties of sources. This proliferation of interactions spans the full dynamical content of the initial primitive interaction. The ambition of the phenomenological source theory is to represent all dynamical aspects of particles, within a certain context, by a suitable primitive interaction. This paper is devoted to the reconstruction of electrodynamics.

Julian Schwinger

1967-06-25T23:59:59.000Z

122

Publications | Advanced Photon Source  

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

research at the APS. It is the official source for listing APS-related journal articles, conference proceedings and papers, dissertations, books, book chapters, technical reports,...

123

Radiation Source Replacement Workshop  

SciTech Connect (OSTI)

This report summarizes a Radiation Source Replacement Workshop in Houston Texas on October 27-28, 2010, which provided a forum for industry and researchers to exchange information and to discuss the issues relating to replacement of AmBe, and potentially other isotope sources used in well logging.

Griffin, Jeffrey W.; Moran, Traci L.; Bond, Leonard J.

2010-12-01T23:59:59.000Z

124

source | OpenEI  

Open Energy Info (EERE)

source source Dataset Summary Description This dataset comes from the Energy Information Administration (EIA), and is part of the 2011 Annual Energy Outlook Report (AEO2011). This dataset is table 17, and contains only the reference case. The dataset uses quadrillion Btu. The data is broken down into marketed renewable energy, residential, commercial, industrial, transportation and electric power. Source EIA Date Released April 26th, 2011 (3 years ago) Date Updated Unknown Keywords Commercial Electric Power Industrial Renewable Energy Consumption Residential sector source transportation Data application/vnd.ms-excel icon AEO2011: Renewable Energy Consumption by Sector and Source- Reference Case (xls, 105 KiB) Quality Metrics Level of Review Peer Reviewed Comment

125

Neutron sources and applications  

SciTech Connect (OSTI)

Review of Neutron Sources and Applications was held at Oak Brook, Illinois, during September 8--10, 1992. This review involved some 70 national and international experts in different areas of neutron research, sources, and applications. Separate working groups were asked to (1) review the current status of advanced research reactors and spallation sources; and (2) provide an update on scientific, technological, and medical applications, including neutron scattering research in a number of disciplines, isotope production, materials irradiation, and other important uses of neutron sources such as materials analysis and fundamental neutron physics. This report summarizes the findings and conclusions of the different working groups involved in the review, and contains some of the best current expertise on neutron sources and applications.

Price, D.L. [ed.] [Argonne National Lab., IL (United States); Rush, J.J. [ed.] [National Inst. of Standards and Technology, Gaithersburg, MD (United States)

1994-01-01T23:59:59.000Z

126

Tunable terahertz radiation source  

SciTech Connect (OSTI)

Terahertz radiation source and method of producing terahertz radiation, said source comprising a junction stack, said junction stack comprising a crystalline material comprising a plurality of self-synchronized intrinsic Josephson junctions; an electrically conductive material in contact with two opposing sides of said crystalline material; and a substrate layer disposed upon at least a portion of both the crystalline material and the electrically-conductive material, wherein the crystalline material has a c-axis which is parallel to the substrate layer, and wherein the source emits at least 1 mW of power.

Boulaevskii, Lev; Feldmann, David M; Jia, Quanxi; Koshelev, Alexei; Moody, Nathan A

2014-01-21T23:59:59.000Z

127

Ultracold Electron Source  

Science Journals Connector (OSTI)

We propose a technique for producing electron bunches that has the potential for advancing the state-of-the-art in brightness of pulsed electron sources by orders of magnitude. In addition, this method leads to femtosecond bunch lengths without the use of ultrafast lasers or magnetic compression. The electron source we propose is an ultracold plasma with electron temperatures down to 10 K, which can be fashioned from a cloud of laser-cooled atoms by photoionization just above threshold. Here we present results of simulations in a realistic setting, showing that an ultracold plasma has an enormous potential as a bright electron source.

B. J. Claessens; S. B. van der Geer; G. Taban; E. J. D. Vredenbregt; O. J. Luiten

2005-10-12T23:59:59.000Z

128

Particles and Sources  

Science Journals Connector (OSTI)

It is proposed that the phenomenological theory of particles be based on the source concept, which is abstracted from the physical possibility of creating or annihilating any particle in a suitable collision. The source representation displays both the momentum and the space-time characteristics of particle behavior. Topics discussed include: spin and statistics, charge and the Euclidean postulate, massless particles, and SU3 and spin. It is emphasized that the source description is logically independent of hypotheses concerning the fundamental nature of particles.

Julian Schwinger

1966-12-23T23:59:59.000Z

129

National Synchrotron Light Source  

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

Environmental Assessment Environmental Assessment Proposed Upgrade and Improvement of the National Synchrotron Light Source Complex at Brookhaven National Laboratory, Upton, New York This Environmental Assessment addresses the proposed action by the U.S. Department of Energy to upgrade the facilities of the National Synchrotron Light Source Complex, namely the National Synchrotron Light Source (NSLS), the Accelerator Test Facility and the Source Development Laboratory. The environmental effects of a No-Action Alternative as well as a Proposed Action are evaluated in the Environmental Assessment. The “NSLS Environmental Assessment Fact Sheet” link below leads to a one-page summary of the Environmental Assessment. The “NSLS Environmental Assessment” link below leads to the whole 41-page

130

SOURCE SELECTION INFORMATION -  

Office of Environmental Management (EM)

311 of P.L. 112-74 and as continued in P.L. 113-6 in excess of 1,000,000. This information is source selection information related to the conduct of a Federal agency...

131

SOURCE SELECTION INFORMATION -  

Office of Environmental Management (EM)

budget authority that is not fully funded under P.L. 113-76 Section 301(c). This information is source selection information related to the conduct of a Federal agency...

132

National Synchrotron Light Source  

ScienceCinema (OSTI)

A tour of Brookhaven's National Synchrotron Light Source (NSLS). The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviole

None

2010-01-08T23:59:59.000Z

133

ION SOURCES FOR CYCLOTRONS  

E-Print Network [OSTI]

These utilize lasers, plasma focus, sparks, and ex­ plodingextractor voltage A plasma focus device has been used byf n a s Fig. 22: The plasma focus high charge state source

Clark, D.J.

2010-01-01T23:59:59.000Z

134

Electron Beam Ion Sources  

E-Print Network [OSTI]

Electron beam ion sources (EBISs) are ion sources that work based on the principle of electron impact ionization, allowing the production of very highly charged ions. The ions produced can be extracted as a DC ion beam as well as ion pulses of different time structures. In comparison to most of the other known ion sources, EBISs feature ion beams with very good beam emittances and a low energy spread. Furthermore, EBISs are excellent sources of photons (X-rays, ultraviolet, extreme ultraviolet, visible light) from highly charged ions. This chapter gives an overview of EBIS physics, the principle of operation, and the known technical solutions. Using examples, the performance of EBISs as well as their applications in various fields of basic research, technology and medicine are discussed.

Zschornacka, G; Thorn, A

2013-01-01T23:59:59.000Z

135

Spallation Neutron Source  

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

D/gim D/gim Spallation Neutron Source SNS is an accelerator-based neutron source. This one-of-a-kind facility pro- vides the most intense pulsed neutron beams in the world. When ramped up to its full beam power of 1.4 MW, SNS will be eight times more powerful than today's best facility. It will give researchers more detailed snapshots of the smallest samples of physical and biological materials than ever before

136

Magnetron sputtering source  

DOE Patents [OSTI]

A magnetron sputtering source for sputtering coating substrates includes a high thermal conductivity electrically insulating ceramic and magnetically attached sputter target which can eliminate vacuum sealing and direct fluid cooling of the cathode assembly. The magnetron sputtering source design results in greater compactness, improved operating characteristics, greater versatility, and low fabrication cost. The design easily retrofits most sputtering apparatuses and provides for safe, easy, and cost effective target replacement, installation, and removal.

Makowiecki, Daniel M. (Livermore, WA); McKernan, Mark A. (Livermore, CA); Grabner, R. Fred (Brentwood, CA); Ramsey, Philip B. (Livermore, CA)

1994-01-01T23:59:59.000Z

137

Field emission electron source  

DOE Patents [OSTI]

A novel field emitter material, field emission electron source, and commercially feasible fabrication method is described. The inventive field emission electron source produces reliable electron currents of up to 400 mA/cm.sup.2 at 200 volts. The emitter is robust and the current it produces is not sensitive to variability of vacuum or the distance between the emitter tip and the cathode. The novel emitter has a sharp turn-on near 100 volts.

Zettl, Alexander Karlwalter (Kensington, CA); Cohen, Marvin Lou (Berkeley, CA)

2000-01-01T23:59:59.000Z

138

National Synchrotron Light Source  

ScienceCinema (OSTI)

A tour of Brookhaven's National Synchrotron Light Source (NSLS), hosted by Associate Laboratory Director for Light Sources, Stephen Dierker. The NSLS is one of the world's most widely used scientific research facilities, hosting more than 2,500 guest researchers each year. The NSLS provides intense beams of infrared, ultraviolet, and x-ray light for basic and applied research in physics, chemistry, medicine, geophysics, environmental, and materials sciences.

BNL

2009-09-01T23:59:59.000Z

139

16 - Alternative energy sources  

Science Journals Connector (OSTI)

Publisher Summary This chapter describes alternative energy sources. The substantial potential of the world's alternative energy sources are still comparatively little exploited, even in countries with limited conventional energy resources. Although this interest was heightened during the mid-1970s because of the oil price shock, most of the technologies are still at an early stage of development. While much research and development work has been undertaken by governments and industry throughout the world, the technical transfer process is comparatively slow. There are a number of abstracting services available in both the United States and the United Kingdom devoted wholly or in part to alternative energy sources. The most useful of the general abstract journals are the Renewable Energy Bulletin, Energy Review, and Energy Abstracts for Policy Analysis. The principal source of information for all aspects of alternative energy sources is the Energy Data Base, established in 1974 b the U.S. Department of Energy, which is the online version of Energy Research Abstracts. There are very few good comprehensive books covering all the alternative energy sources, perhaps understandably given the scope of the subject.

Alan Heyes

1988-01-01T23:59:59.000Z

140

Pulsed ion beam source  

DOE Patents [OSTI]

An improved pulsed ion beam source is disclosed having a new biasing circuit for the fast magnetic field. This circuit provides for an initial negative bias for the field created by the fast coils in the ion beam source which pre-ionize the gas in the source, ionize the gas and deliver the gas to the proper position in the accelerating gap between the anode and cathode assemblies in the ion beam source. The initial negative bias improves the interaction between the location of the nulls in the composite magnetic field in the ion beam source and the position of the gas for pre-ionization and ionization into the plasma as well as final positioning of the plasma in the accelerating gap. Improvements to the construction of the flux excluders in the anode assembly are also accomplished by fabricating them as layered structures with a high melting point, low conductivity material on the outsides with a high conductivity material in the center. 12 figs.

Greenly, J.B.

1997-08-12T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Photon Source Parameters  

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

Photon Source Parameters Photon Source Parameters Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

142

Source Emissions and Transport  

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

electron micrograph image, Lara Gundel with instrumentation electron micrograph image, Lara Gundel with instrumentation Source Emissions and Transport Investigators conduct research here to characterize and better understand the sources of airborne volatile, semi-volatile and particulate organic pollutants in the indoor environment. This research includes studies of the physical and chemical processes that govern indoor air pollutant concentrations and exposures. The motivation is to contribute to the reduction of potential human health effects. Contacts Randy Maddalena RLMaddalena@lbl.gov (510) 486-4924 Mark Mendell MJMendell@lbl.gov (510) 486-5762 Links Pollutant Sources, Dynamics and Chemistry Group Batteries and Fuel Cells Buildings Energy Efficiency Electricity Grid Energy Analysis Energy Technologies Environmental Impacts

143

Heat Source Lire,  

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

Source Lire, Source Lire, (liayrICS-25 ) tooling Tulles (Ai 1,06:1) - 11 (31.118 Module Stack Thermoelectric Module:, (14) ltcal L/Mr r a it i lli tisli Block Mounting Interface MMRTG Design Housing (At 2219) Fin (At Go63) Thermal Insulation (Min-K & Microtherm) Space Radioisotope Power Systems Multi-Mission Radioisotope Thermoelectric Generator January 2008 What is a Multi-Mission Radioisotope Thermoelectric Generator? Space exploration missions require safe, reliable, long-lived power systems to provide electricity and heat to spacecraft and their science instruments. A uniquely capable source of power is the radioisotope thermoelectric generator (RTG) - essentially a nuclear battery that reliably converts heat into electricity. The Department of Energy and NASA are developing

144

Source Selection Guide  

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

Source Selection Source Selection Overview This chapter provides guidance to the acquisition team on conducting source selection in accordance with Part 15 of the Federal Acquisition Regulation (FAR). Background The mid 1990's was a time of significant change in many areas of procurement, particularly in the introduction of new tools and processes that help the procurement professional better meet the needs of demanding customers. The passage of the Federal Acquisition Streamlining Act in 1994 and the Federal Acquisition Reform Act in 1995 , coupled with Government-wide and Department of Energy (DOE) contract reform efforts not only changed traditional procurement processes but also changed the role of the procurement professional. No longer are procurement

145

ISG8-RF Sources  

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

RF Sources - (WG3) RF Sources - (WG3) Orange Rm Yong Ho Chin, Christopher Nantista, and Sami G. Tantawi Parallel Sessions: Working Groups: WG1: Parameters, Design, Instrumentation and Tuning WG2: Damping Rings and ATF WG3: RF Sources WG4:Structures WG5: Ground Motion; Site Requirements and Investigations Monday Morning 9:00-10:30 Plenary Coffee Break 11:00-12:00 Planning Session. Monday Afternoon 13:30-15:30 High Gradient Issues (Joint with working group 4) Coffee Break 16:00-16:30 The 8-Pack Project -- D. Atkinson 16:30-17:30 High Gradient Issues and Discussions Continued. Tuesday Morning 9:30-10:30 Klystrons 9:30-10:00 Status of PPM Klystron Development for JLC -- Y. H. Chin 10:00-10:30 Design of 150MW Multi-Beam Klystron -- S. Matsumoto Coffee Break 11:00-11:30 Klystron Development at SLAC -- G. Caryotakis

146

Sources and Magnetic Charge  

Science Journals Connector (OSTI)

A beginning is made on a phenomenological reconstruction of the theory of magnetic charge. The concept is introduced by reference to a new kind of photon source. It is shown that photon exchange between different source types is relativistically invariant. The space-time generalization of this coupling involves an arbitrary vector. The only way to remove a corresponding arbitrariness of physical predictions is to recognize the localization of charge and impose a charge quantization condition. The consideration of particles that carry both kinds of charge loosens the charge restrictions. The great strength of magnetic attraction indicated by g24?=4(137) suggests that ordinary matter is a magnetically neutral composite of magnetically charged particles that carry fractional electric charge. There is a brief discussion of such a magnetic model of strongly interacting particles, which makes contact with empirical classification schemes. Additional remarks on notation, and on the general nature of the source description, are appended.

Julian Schwinger

1968-09-25T23:59:59.000Z

147

OLED area illumination source  

DOE Patents [OSTI]

The present invention relates to an area illumination light source comprising a plurality of individual OLED panels. The individual OLED panels are configured in a physically modular fashion. Each OLED panel comprising a plurality of OLED devices. Each OLED panel comprises a first electrode and a second electrode such that the power being supplied to each individual OLED panel may be varied independently. A power supply unit capable of delivering varying levels of voltage simultaneously to the first and second electrodes of each of the individual OLED panels is also provided. The area illumination light source also comprises a mount within which the OLED panels are arrayed.

Foust, Donald Franklin (Scotia, NY); Duggal, Anil Raj (Niskayuna, NY); Shiang, Joseph John (Niskayuna, NY); Nealon, William Francis (Gloversville, NY); Bortscheller, Jacob Charles (Clifton Park, NY)

2008-03-25T23:59:59.000Z

148

Strategic Sourcing | Department of Energy  

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

Strategic Sourcing Strategic Sourcing Strategic Sourcing Energy Wide Strategic Sourcing (EWSS) DOE leadership has recognized that benefits could be achieved at the federal level through an organized, systematic and collaborative approach to acquiring commonly used goods and services. The DOE strategic sourcing program builds upon historical accomplishments as well as establishes a more cohesive and disciplined program, consistent with OMB's direction, for the conduct of DOE future strategic sourcing efforts. The DOE and NNSA Senior Procurement Executives have created a strategic sourcing capability and organizational components to identify federal strategic sourcing opportunities and coordinate strategic thinking. To date, this program has identified a number of opportunities; particularly in the areas of

149

Energy Sources | Department of Energy  

Energy Savers [EERE]

Sources Energy Sources Renewable Energy Renewable Energy Learn more about energy from solar, wind, water, geothermal and biomass. Read more Nuclear Nuclear Learn more about how we...

150

The Orsay Polarized Electron Source  

Science Journals Connector (OSTI)

A polarized electron source is developed at Orsay to equip existing ... have chosen to adapt the flowing helium afterglow source working at Rice University: it is able...

S. Essabaa; C. G. Aminoff; J. Arianer; I. Brissaud

1991-01-01T23:59:59.000Z

151

Chapter 2 - Energy Sources  

Science Journals Connector (OSTI)

Abstract In today’s industrialized world, energy became vital to all human activities including manufacturing, data processing, heating, cooling, lighting, transportation, food processing, etc., yet it is invisible for most of us. Today’s energy generation technologies are undergoing a paradigm shift; the solution to our current dilemma requires more renewable contribution as well as the more efficient utilization of conventional energy sources. Recognizing this importance, this chapter focuses on energy sources and energy generation technologies including, coal, hydroelectric, nuclear, solar, wind, ocean, and several others. Alternative energy technologies received great interest in recent years due to environmental impact, greenhouse gas emissions, national energy security, and increasing cost of fossil fuel-based sources. With particular emphasis on renewable and alternative energy systems, characteristic features of the renewable energy sources have been reviewed. Since power electronics is a key enabling technology for renewable energy utilization, power electronic converters and interfaces that are used for grid interconnection and stand-alone operation have been presented.

Omer C. Onar; Alireza Khaligh

2015-01-01T23:59:59.000Z

152

Sealed Radioactive Source Accountability  

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

This Notice extends DOE N 5400.9, Sealed Radioactive Source Accountability, of 12-24-91, until 12-24-95, unless sooner superseded or rescinded. The contents of DOE N 5400.9 will be updated and incorporated in the revised DOE O 5480.11, Radiation Protection for Occupational Workers.

1994-12-22T23:59:59.000Z

153

New Sources of Energy  

Science Journals Connector (OSTI)

... and new ideas on recent progress in the applications of solar energy, wind power and geothermal energy, and held in Rome during August 21-31. The term 'new is ... power resources. These three forms of energy are very different in their characteristics; a geothermal energy source is a gift for any nation fortunate enough to possess such a site ...

H. HEYWOOD

1961-11-04T23:59:59.000Z

154

SOURCE SELECTION INFORMATION -  

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

P.L. 113-6 or P.L. 112-74 Section 301(b) to include P.L. 113-76 Section 301(c). This information is source selection information related to the conduct of a Federal agency...

155

Sealed Radioactive Source Accountability  

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

To establish Department of Energy (DOE) interim policy and to provide guidance for sealed radioactive source accountability. The directive does not cancel any directives. Extended by DOE N 5400.10 to 12-24-93 & Extended by DOE N 5400.12 to 12-24-94.

1991-12-24T23:59:59.000Z

156

Selective ion source  

DOE Patents [OSTI]

A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P{sup +} from PH{sub 3}. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P{sup +}, As{sup +}, and B{sup +} without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices. 6 figs.

Leung, K.N.

1996-05-14T23:59:59.000Z

157

Selective ion source  

DOE Patents [OSTI]

A ion source is described wherein selected ions maybe extracted to the exclusion of unwanted ion species of higher ionization potential. Also described is a method of producing selected ions from a compound, such as P.sup.+ from PH.sub.3. The invention comprises a plasma chamber, an electron source, a means for introducing a gas to be ionized by electrons from the electron source, means for limiting electron energy from the electron source to a value between the ionization energy of the selected ion species and the greater ionization energy of an unwanted ion specie, and means for extracting the target ion specie from the plasma chamber. In one embodiment, the electrons are generated in a plasma cathode chamber immediately adjacent to the plasma chamber. A small extractor draws the electrons from the plasma cathode chamber into the relatively positive plasma chamber. The energy of the electrons extracted in this manner is easily controlled. The invention is particularly useful for doping silicon with P.sup.+, AS.sup.+, and B.sup.+ without the problematic presence of hydrogen, helium, water, or carbon oxide ions. Doped silicon is important for manufacture of semiconductors and semiconductor devices.

Leung, Ka-Ngo (Hercules, CA)

1996-01-01T23:59:59.000Z

158

Superluminal sources in astronomy  

Science Journals Connector (OSTI)

......February-March 1997 news News Superluminal sources...manifestations of natural violence in recorded...RAS Librarian. NEWS It is now 30 years...magnetic pres- sure drives a rapid outflow...resulting outflow of gas drags with it small......

Peter Wilkinson; Ralph Spencer

1997-01-01T23:59:59.000Z

159

Evolution of anthropogenic and biomass burning emissions of air pollutants at global and regional scales during the 1980-2010 period  

SciTech Connect (OSTI)

Several different inventories of global and regional anthropogenic and biomass burning emissions are assessed for the 1980-2010 period. The species considered in this study are carbon monoxide, nitrogen oxides, sulfur dioxide and black carbon. The inventories considered include the ACCMIP historical emissions developed in support of the simulations for the IPCC AR5 assessment. Emissions for 2005 and 2010 from the Representative Concentration Pathways (RCPs) are also included. Large discrepancies between the global and regional emissions are identified, which shows that there is still no consensus on the best estimates for surface emissions of atmospheric compounds. At the global scale, anthropogenic emissions of CO, NOx and SO2 show the best agreement in most years. The agreement is low for BC emissions, particularly in the period prior to 2000. The best consensus is for NOx emissions for all periods and all regions, except for China where emissions in 1980 and 1990 need to be better defined. Emissions of CO need a better quantification in the USA for all periods; in Central Europe, the evolution of emissions during the past two decades needs to be better determined. The agreement between the different SO2 emissions datasets is rather good for the USA, but better quantification is needed elsewhere, particularly for Central Europe and China. The comparisons performed in this study show that the use of RCP8.5 for the extension of the ACCMIP inventory beyond 2000 is reasonable, until more global or regional estimates become available. Concerning biomass burning emissions, most inventories agree within 50-80%, depending on the year and season. The large differences are due to differences in the estimates of burned areas from the different available products, as well as in the amount of biomass burnt.

Granier, Claire; Bessagnet, Bertrand; Bond, Tami C.; D'Angiola, Ariela; Denier van der Gon, Hugo; Frost, G. J.; Heil, Angelika; Kaiser, Johannes W.; Kinne, Stefan; Klimont, Z.; Kloster, Jean; Lamarque, J.-F.; Liousse, Catherine; Masui, Toshihiko; Meleux, Frederik; Mieville, Aude; Ohara, Toshimasa; Raut, Jean-Christophe; Riahi, Keywan; Schultz, Martin; Smith, Steven J.; Thomson, Allison M.; van Aardenne, John; van der Werf, Guido R.; Van Vuuren, Detlef

2011-08-08T23:59:59.000Z

160

Kalman-filtered compressive sensing for high resolution estimation of anthropogenic greenhouse gas emissions from sparse measurements.  

SciTech Connect (OSTI)

The estimation of fossil-fuel CO2 emissions (ffCO2) from limited ground-based and satellite measurements of CO2 concentrations will form a key component of the monitoring of treaties aimed at the abatement of greenhouse gas emissions. The limited nature of the measured data leads to a severely-underdetermined estimation problem. If the estimation is performed at fine spatial resolutions, it can also be computationally expensive. In order to enable such estimations, advances are needed in the spatial representation of ffCO2 emissions, scalable inversion algorithms and the identification of observables to measure. To that end, we investigate parsimonious spatial parameterizations of ffCO2 emissions which can be used in atmospheric inversions. We devise and test three random field models, based on wavelets, Gaussian kernels and covariance structures derived from easily-observed proxies of human activity. In doing so, we constructed a novel inversion algorithm, based on compressive sensing and sparse reconstruction, to perform the estimation. We also address scalable ensemble Kalman filters as an inversion mechanism and quantify the impact of Gaussian assumptions inherent in them. We find that the assumption does not impact the estimates of mean ffCO2 source strengths appreciably, but a comparison with Markov chain Monte Carlo estimates show significant differences in the variance of the source strengths. Finally, we study if the very different spatial natures of biogenic and ffCO2 emissions can be used to estimate them, in a disaggregated fashion, solely from CO2 concentration measurements, without extra information from products of incomplete combustion e.g., CO. We find that this is possible during the winter months, though the errors can be as large as 50%.

Ray, Jaideep; Lee, Jina; Lefantzi, Sophia; Yadav, Vineet [Carnegie Institution for Science, Stanford, CA; Michalak, Anna M. [Carnegie Institution for Science, Stanford, CA; van Bloemen Waanders, Bart Gustaaf [Sandia National Laboratories, Albuquerque NM; McKenna, Sean Andrew [IBM Research, Mulhuddart, Dublin, Ireland

2013-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Chemical Bonding and Structural Information of Black Carbon Reference Materials and Individual Carbonaceous Atmospheric Aerosols  

E-Print Network [OSTI]

anthropogenic combustion and biomass burns, thus allowingAnthropogenic combustion and biomass burn particles can befrom anthropogenic combustion and biomass burn sources are

Hopkins, Rebecca J.; Tivanski, Alexei V.; Marten, Bryan D.; Gilles, Mary K.

2007-01-01T23:59:59.000Z

162

Photon Source Parameters  

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

Photon Source Parameters Print Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

163

Overview | Advanced Photon Source  

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

APS Overview: APS Overview: Introduction APS Systems Map LINAC Booster Synchrotron Storage Ring Insertion Devices Experiment Hall LOMs & Beamlines Overview of the APS The Advanced Photon Source (APS) at the U.S. Department of Energy's Argonne National Laboratory provides this nation's (in fact, this hemisphere's) brightest storage ring-generated x-ray beams for research in almost all scientific disciplines. Photo: Aerial Photo of APS Aerial photo of the Advanced Photon Source These x-rays allow scientists to pursue new knowledge about the structure and function of materials in the center of the Earth and in outer space, and all points in between. The knowledge gained from this research can impact the evolution of combustion engines and microcircuits, aid in the development of new pharmaceuticals, and pioneer nanotechnologies whose

164

National Synchrotron Light Source  

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

Report 2001 Report 2001 National Synchrotron Light Source For the period October 1, 2000 through September 30, 2001 Introduction Science Highlights Year in Review Operations Publications Abstracts Nancye Wright & Lydia Rogers The National Synchrotron Light Source Department is supported by the Office of Basic Energy Sciences United States Department of Energy Washington, D.C. Brookhaven National Laboratory Brookhaven Science Associates, Inc. Upton, New York 11973 Under Contract No. DE-AC02-98CH10886 Mary Anne Corwin Steven N. Ehrlich & Lisa M. Miller Managing Editor Science Editors Production Assistants Cover images (clockwise from top left) 1. from Science Highlight by K.R. Rajashankar, M.R. Chance, S.K. Burley, J. Jiang, S.C. Almo, A. Bresnick, T. Dodatko, R. Huang, G. He,

165

Advanced Photon Source  

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

Tomography Interest Group Contact: Robert Winarski, Center for Nanoscale Materials winarski@anl.gov Contact: Francesco De Carlo, Advanced Photon Source decarlo@aps.anl.gov The tomography special interest group of the Advanced Photon Source (APS) at Argonne National Laboratory has been created to promote awareness of the tomography facilities at the APS and to foster communications between the various research groups. Through this group, we believe we can build a strong user community for tomography. The following beamlines have active tomography research programs: 2-BM-B (XOR) http://www.aps.anl.gov/Xray_Science_Division/Xray_Microscopy_and_Imaging/Science_and_Research/Techniques/Tomography/index.html Information about the beamline: http://beam.aps.anl.gov/pls/apsweb/beamline_display_pkg.display_beamline?p_beamline_num_c=31

166

Posters | Advanced Photon Source  

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

Your Cart (0 Posters) Your Cart (0 Posters) Your cart is empty. checkout Subtotal: $0.00 update empty Posters Order a printed APS poster! 11 in. x 17 in. prints will be mailed in the order requests are received. 36 in. x 36 in. posters will be sent to school addresses once all orders are processed. The Advanced Photon Source Is The Advanced Photon Source Is Qty: 1 add to cart Technologies from Materials Science Technologies from Materials Science Qty: 1 add to cart Materials Under Extreme Pressure Materials Under Extreme Pressure Qty: 1 add to cart Biological Macromolecules in Action Biological Macromolecules in Action Qty: 1 add to cart Journey to the Center of the Earth Journey to the Center of the Earth Qty: 1 add to cart Earthshaking Monitor Earthshaking Monitor Qty: 1 add to cart Imaging with X-rays

167

Photon Source Parameters  

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

Photon Source Parameters Print Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

168

Photon Source Parameters  

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

Photon Source Parameters Print Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

169

Advanced Photon Source  

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

Home Home Group Members Accelerator Magnets Insertion Devices Facilities Presentations & Publications Internal Magnetic Devices Group The primary mission of the Magnetic Devices (MD) Group is to design, build, and maintain Insertion Devices (IDs) that are reliable and transparent to the electron beam at the Advanced Photon Source (APS). The majority of IDs at the APS are conventional planar hybrid undulators, but an essential part of the mission is to develop novel IDs, such as short-period superconducting undulators and long-period electromagnetic undulators. The capabilities of APS IDs are matched to users' experimental needs. The mission also includes magnetic tuning of the IDs to ensure their near-ideal performance as x-ray sources and calculations to predict the radiation

170

Photon Source Parameters  

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

Photon Source Parameters Print Photon Source Parameters Print Summary Graph of Brightness Curves for All Insertion Devices Insertion Device and Bend Magnet Parameters Bend Magnet Superbend Magnet U30 Undulator U50 Undulator U80 Undulator U100 Undulator W114 Wiggler The ALS has six elliptically polarizing undulators, two in straight 4, two in straight 11, and one each in straights 6 and 7. All are arranged with chicanes so that two such devices can be installed to feed two independent beamlines. They can be used in a variety of polarization modes, including circular, elliptical, horizontal, and vertical. These modes can be chosen by appropriate phasing of the magnet rows. The brightness and flux curves below are shown for horizontal and circular polarization. Curves for elliptical and vertical polarization are similar to the horizontal polarization curve, but the minimum photon energy is higher.

171

Evaluated teletherapy source library  

DOE Patents [OSTI]

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

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

2000-01-01T23:59:59.000Z

172

Calibrated vapor generator source  

DOE Patents [OSTI]

A portable vapor generator is disclosed that can provide a controlled source of chemical vapors, such as, narcotic or explosive vapors. This source can be used to test and calibrate various types of vapor detection systems by providing a known amount of vapors to the system. The vapor generator is calibrated using a reference ion mobility spectrometer. A method of providing this vapor is described, as follows: explosive or narcotic is deposited on quartz wool, placed in a chamber that can be heated or cooled (depending on the vapor pressure of the material) to control the concentration of vapors in the reservoir. A controlled flow of air is pulsed over the quartz wool releasing a preset quantity of vapors at the outlet. 10 figs.

Davies, J.P.; Larson, R.A.; Goodrich, L.D.; Hall, H.J.; Stoddard, B.D.; Davis, S.G.; Kaser, T.G.; Conrad, F.J.

1995-09-26T23:59:59.000Z

173

Voltage controlled current source  

DOE Patents [OSTI]

A seven decade, voltage controlled current source is described for use in testing intermediate range nuclear instruments that covers the entire test current range of from 10 picoamperes to 100 microamperes. High accuracy is obtained throughout the entire seven decades of output current with circuitry that includes a coordinated switching scheme responsive to the input signal from a hybrid computer to control the input voltage to an antilog amplifier, and to selectively connect a resistance to the antilog amplifier output to provide a continuous output current source as a function of a preset range of input voltage. An operator controlled switch provides current adjustment for operation in either a real-time simulation test mode or a time response test mode.

Casne, Gregory M. (Pittsburgh, PA)

1992-01-01T23:59:59.000Z

174

Advanced Photon Source  

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

0 Advanced Photon Source 0 Advanced Photon Source A U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences national synchrotron x-ray research facility Search Button About Welcome Overview Visiting the APS Mission & Goals Find People Organization Charts Committees Job Openings User Information Prospective Users New Users Current Users APS User Portal Macromolecular Crystallographers Administrators Find a Beamline Apply for Beam Time Contacts Calendars Community Scientific Access Site Access Training Science & Education Science & Research Highlights Conferences Seminars Publications Annual Reports APS Upgrade Courses and Schools Graduate Programs Scientific Software Media Center Calendar of Events APS News User News Argonne/APS Press Releases Argonne/APS Feature Stories Argonne/APS In The News

175

Comparisons with Other sources  

U.S. Energy Information Administration (EIA) Indexed Site

Estimates Compared with Other sources Estimates Compared with Other sources The following seven graphs were prepared to give a sense of the variation and confidence level of the EIA-914 estimates. Each graph shows the reported sample production (the starting point for making an estimate), the EIA-914 estimates, State reported data, HPDI reported data, and Lippman Consulting data for comparison. State data are obtained directly from the States usually via a State agency web site as a monthly total. HPDI is a commercial data vender. They acquire data from all the States and provide it to EIA in a single format and query system at the well or lease level. EIA then sums this data to the operator level and State level. HPDI data typically lag the State data by 1 or 2 months.

176

Earth's Heat Source - The Sun  

E-Print Network [OSTI]

The Sun encompasses planet Earth, supplies the heat that warms it, and even shakes it. The United Nation Intergovernmental Panel on Climate Change (IPCC) assumed that solar influence on our climate is limited to changes in solar irradiance and adopted the consensus opinion of a Hydrogen-filled Sun, the Standard Solar Model (SSM). They did not consider the alternative solar model and instead adopted another consensus opinion: Anthropogenic greenhouse gases play a dominant role in climate change. The SSM fails to explain the solar wind, solar cycles, and the empirical link of solar surface activity with Earth changing climate. The alternative solar model, that was molded from an embarrassingly large number of unexpected observations revealed by space-age measurements since 1959, explains not only these puzzles but also how closely linked interactions between the Sun and its planets and other celestial bodies induce turbulent cycles of secondary solar characteristics that significantly affect Earth climate.

Oliver K. Manuel

2009-05-05T23:59:59.000Z

177

Earth's Heat Source - The Sun  

E-Print Network [OSTI]

The Sun encompasses planet Earth, supplies the heat that warms it, and even shakes it. The United Nation Intergovernmental Panel on Climate Change (IPCC) assumed that solar influence on our climate is limited to changes in solar irradiance and adopted the consensus opinion of a Hydrogen-filled Sun, the Standard Solar Model (SSM). They did not consider the alternative solar model and instead adopted another consensus opinion: Anthropogenic greenhouse gases play a dominant role in climate change. The SSM fails to explain the solar wind, solar cycles, and the empirical link of solar surface activity with Earth changing climate. The alternative solar model, that was molded from an embarrassingly large number of unexpected observations revealed by space-age measurements since 1959, explains not only these puzzles but also how closely linked interactions between the Sun and its planets and other celestial bodies induce turbulent cycles of secondary solar characteristics that significantly affect Earth climate.

Manuel, Oliver K

2009-01-01T23:59:59.000Z

178

The European Spallation Source  

SciTech Connect (OSTI)

The European Spallation Source (ESS) is a 5 MW, 2.5 GeV long pulse proton linac, to be built and commissioned in Lund, Sweden. The Accelerator Design Update (ADU) project phase is under way, to be completed at the end of 2012 by the delivery of a Technical Design Report. Improvements to the 2003 ESS design will be summarised, and the latest design activities will be presented.

Peggs, S; Eshraqi, M; Hahn, H; Jansson, A; Lindroos, M; Ponton, A; Rathsman, K; Trahern, G; Bousso, S; Calaga, R; Devanz, G; Duperrier, R D; Eguia, J; Gammino, S; Moller, S P; Oyon, C; Ruber, R.J.M.Y.

2011-03-01T23:59:59.000Z

179

Negative ion source  

DOE Patents [OSTI]

A method and apparatus for providing a negative ion source accelerates electrons away from a hot filament electron emitter into a region of crossed electric and magnetic fields arranged in a magnetron configuration. During a portion of the resulting cycloidal path, the electron velocity is reduced below its initial value. The electron accelerates as it leaves the surface at a rate of only slightly less than if there were no magnetic field, thereby preventing a charge buildup at the surface of the emitter. As the electron traverses the cycloid, it is decelerated during the second, third, and fourth quadrants, then reeccelerated as it approaches the end of the fourth quadrant to regain its original velocity. The minimum velocity occurs during the fourth quadrant, and corresponds to an electron temperature of 200.degree. to 500.degree. for the electric and magnetic fields commonly encountered in the ion sources of magnetic sector mass spectrometers. An ion source using the above-described thermalized electrons is also disclosed.

Delmore, James E. (Idaho Falls, ID)

1987-01-01T23:59:59.000Z

180

Sources and Gravitons  

Science Journals Connector (OSTI)

Gravitational theory is reconstructed from the source description of gravitons. As indirect evidence for this starting point, the theoretical basis for the four tests of Einsteinian gravitational theory is produced by elementary arguments. Following the electromagnetic example, the source description is recast as a numerical field theory characterized by an action principle. After recognizing that the physically restricted theory possesses invariance with respect to infinitesimal coordinate transformations, it is generalized to exhibit invariance under arbitrary coordinate transformations, which supplies the primitive interactions for multigraviton processes. There is a discussion of the necessary dependence of graviton sources upon the gravitational field, and a simple model is constructed. The qualitative structure of the modification that multiparticle exchange introduces in the graviton-propagation function is exhibited, with the corresponding modification in the Newtonian potential. There are some speculative remarks about Mach's principle and the accompanying interpretation of the gravitational constant. The paper concludes by pointing out empirical scaling laws that interconnect the cosmos, the laboratory, and the atom.

Julian Schwinger

1968-09-25T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

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

182

The European Spallation Source  

SciTech Connect (OSTI)

In 2003 the joint European effort to design a European Spallation Source (ESS) resulted in a set of reports, and in May 2009 Lund was agreed to be the ESS site. The ESS Scandinavia office has since then worked on setting all the necessary legal and organizational matters in place so that the Design Update and construction can be started in January 2011, in collaboration with European partners. The Design Update phase is expected to end in 2012, to be followed by a construction phase, with first neutrons expected in 2018-2019.

Lindroos M.; Calaga R.; Bousson S.; Danared H.; Devanz G. et al

2011-04-20T23:59:59.000Z

183

A surface ionization source  

E-Print Network [OSTI]

The Einzel Lens. 2 The Quadrupole Triplet . . 3. The Beam Scanner. . . 4 The Four-plate Detectors and Faraday Cups. III TESTING AND OPTIMIZING THE BEAM LINE 10 12 13 A. Initial Results. IV THE THEORY OF SURFACE IONIZATION . . . . . V ION SOURCES. 21... aperture and through a beam scanner. The scanner translates the beam's cross-section to an image visible on the oscilloscope A movable Faraday cup connected to a sensitive electrometer is used to maximize the beam transmission at the opening into the 2...

Buzatu, Daniel J.

2012-06-07T23:59:59.000Z

184

Compact ion accelerator source  

DOE Patents [OSTI]

An ion source includes a conductive substrate, the substrate including a plurality of conductive nanostructures with free-standing tips formed on the substrate. A conductive catalytic coating is formed on the nanostructures and substrate for dissociation of a molecular species into an atomic species, the molecular species being brought in contact with the catalytic coating. A target electrode placed apart from the substrate, the target electrode being biased relative to the substrate with a first bias voltage to ionize the atomic species in proximity to the free-standing tips and attract the ionized atomic species from the substrate in the direction of the target electrode.

Schenkel, Thomas; Persaud, Arun; Kapadia, Rehan; Javey, Ali

2014-04-29T23:59:59.000Z

185

Optimization of neutron source  

SciTech Connect (OSTI)

I consider here the optimization of the two component neutron source, allowing beam species and energy to vary. A simple model is developed, based on the earlier publications, that permits the optimum to be obtained simply. The two component plasma, with one species of hot ion (D{sup +} or T{sup +}) and the complementary species of cold ion, is easy to analyze in the case of a spatially uniform cold plasma, as to good approximation the total number of hot ions is important but not their spatial distribution. Consequently, the optimization can ignore spatial effects. The problem of a plasma with both types of hot ions and cold ions is rather more difficult, as the neutron production by hot-hot interactions is sensitive to their spatial distributions. Consequently, consideration of this problem will be delayed to a future memorandum. The basic model is that used in the published articles on the two-component, beam-plasma mirror source. I integrate the Fokker-Planck equation analytically, obtaining good agreement with previous numerical results. This simplifies the optimization, by providing a functional form for the neutron production. The primary result is expressed in terms of the power efficiency: watts of neutrons/watts of primary power. The latter includes the positive ion neutralization efficiency. At 150 keV, the present model obtains an efficiency of 0.66%, compared with 0.53% of the earlier calculation.

Hooper, E.B.

1993-11-09T23:59:59.000Z

186

Federal Funding Sources of Information Sources for Automatic Funding Notices  

E-Print Network [OSTI]

;Federal Funding Sources of Information r Grant Programs & Deadlines q World Health Organization - GrantFederal Funding Sources of Information Sources for Automatic Funding Notices q Catalogue of Federal Domestic Assistance q Grants.Gov q FedBizOpps q The Foundation Center r RFP Bulletin r Philanthropy News

187

Radiological Source Registry and Tracking  

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

Radiological Source Registry and Tracking (RSRT) Radiological Source Registry and Tracking (RSRT) Home HSS Logo Radiological Source Registry and Tracking (RSRT) Department of Energy (DOE) Notice N 234.1 Reporting of Radioactive Sealed Sources has been superseded by DOE Order O 231.1B Environment, Safety and Health Reporting. O 231.1B identifies the requirements for centralized inventory and transaction reporting for radioactive sealed sources. Each DOE site/facility operator that owns, possesses, uses or maintains in custody those accountable radioactive sealed sources identified in Title 10 Code of Federal Regulation Part 835, Occupational Radiation Protection (10 CFR 835), Appendix E, and International Atomic Energy Agency (IAEA) Categories 1 and 2 radioactive sealed sources identified in Attachment 5, Appendix A of O 321.1B, will submit information to the DOE Radiological Source Registry and Tracking (RSRT) System.

188

Manhattan Project: Sources and Notes  

Office of Scientific and Technical Information (OSTI)

SOURCES AND NOTES SOURCES AND NOTES Resources > Sources Below are the collected specific notes for the text and images used on the pages of this web site. For a discussion of the most important works on the Manhattan Project, see the "Suggested Readings." For a general discussion of the use of sources in this web site, see "A Note on Sources." To scan the sources and notes for various categories, choose from the list below. To view the sources and notes for a specific web page, see the footnote at the bottom of each page (exceptions include this page and the home page; the sources and notes for the home page are the first ones listed below). Home Events 1890s-1939: Atomic Discoveries 1939-1942: Early Government Support 1942: Difficult Choices

189

Carbon nanotube electron source technology  

Science Journals Connector (OSTI)

The carbon nanotube embodies a unique combination of properties which make it potentially an extraordinary field emission electron source. These properties include small tip radii (and small source size), high el...

Kenneth Teo

2007-03-01T23:59:59.000Z

190

The SLC Polarized Electron Source  

Science Journals Connector (OSTI)

A polarized electron source consisting of a 3-electrode photocathode gun ... SLC and is currently undergoing commissioning. The source is described, and the operating configuration is discussed. The present statu...

J. E. Clendenin

1991-01-01T23:59:59.000Z

191

National Synchrotron Light Source  

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

All Documents listed below are part of the Photon Sciences Directorate and All Documents listed below are part of the Photon Sciences Directorate and will be updated as needed. Photon Sciences ESH Standard Operating Procedures (SOPs) SOP No. Standard Operating Procedure for: LS-ES-0002 Procedure for Acid Etching of Silicon and Germanium Crystals LS-ESH-0004 NSLS Operations Group Chemical Spill and Gas Release Response LS-ESH-0010 VUV Injection Shutter LOTO LS-ESH-0012 LINAC LOTO LS-ESH-0013 Controlled Access to the VUV Ring LS-ESH-0014 Radiation Safety Interlocks at the National Synchrotron Light Source LS-ESH-0019 Beam Line Configuration Control Checklist Requirements LS-ESH-0020 Biosafety Requirements at the NSLS LS-ESH-0021 Biosafety Level 2 work at the NSLS/ A Technical Basis LS-ESH-0022 Beam Line Configuration Control Checklist Requirements

192

Welcome | Advanced Photon Source  

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

Welcome Welcome Aerial view of APS Aerial view of the APS Welcome to the Advanced Photon Source (APS) at Argonne National Laboratory. Whether you are a current or potential scientific user of our unique facility or are simply interested in learning more about the APS, we are delighted that you are visiting our website. The APS is funded by the Office of Science, Office of Basic Energy Sciences in the U.S. Department of Energy. We operate a National User Facility that is open to everyone who has a need for extremely brilliant x-ray photon beams. The APS is one of the most technologically complex machines in the world. This premier national research facility provides the brightest x-ray beams in the Western Hemisphere to more than 5,000 (and growing) scientists from

193

ILC Positron source simualtion  

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

(DOE Review 2007) (DOE Review 2007) Wanming Liu, Haitao Wang, Sergey Antipov, Wei Gai, Kwang-Je Kim HEP, ANL 04/27/2007 Where we are making contribution * Undulator radiation modeling * Adiabatic Matching Device modeling * Keep alive source simulation * Thermal dynamic study on windows * Eddy current simulation * Laser compton scheme positron production simulation for KEK/CLIC Where we are making contributions Outline Undulator and e+ yield OMD/AMD modeling and designing Thermal dynamic of target chamber window Energy deposition profile of target Collaboration with KEK/CLIC Comparison of positron yield from different undulators High K Devices Low K Devices BCD UK I UK II UK III Cornell I Cornell II Cornell III Period (mm) 10.0 11.5 11.0 10.5 10.0 12.0 7 0.3 0.46 28 ~0.54 Yield(Low Pol, 500m drift) ~2.13

194

Infrared source test  

SciTech Connect (OSTI)

The purpose of the Infrared Source Test (IRST) is to demonstrate the ability to track a ground target with an infrared sensor from an airplane. The system is being developed within the Advance Technology Program`s Theater Missile Defense/Unmanned Aerial Vehicle (UAV) section. The IRST payload consists of an Amber Radiance 1 infrared camera system, a computer, a gimbaled mirror, and a hard disk. The processor is a custom R3000 CPU board made by Risq Modular Systems, Inc. for LLNL. The board has ethernet, SCSI, parallel I/O, and serial ports, a DMA channel, a video (frame buffer) interface, and eight MBytes of main memory. The real-time operating system VxWorks has been ported to the processor. The application code is written in C on a host SUN 4 UNIX workstation. The IRST is the result of a combined effort by physicists, electrical and mechanical engineers, and computer scientists.

Ott, L.

1994-11-15T23:59:59.000Z

195

Thulium-170 heat source  

SciTech Connect (OSTI)

An isotopic heat source is formed using stacks of thin individual layers of a refractory isotopic fuel, preferably thulium oxide, alternating with layers of a low atomic weight diluent, preferably graphite. The graphite serves several functions: to act as a moderator during neutron irradiation, to minimize bremsstrahlung radiation, and to facilitate heat transfer. The fuel stacks are inserted into a heat block, which is encased in a sealed, insulated and shielded structural container. Heat pipes are inserted in the heat block and contain a working fluid. The heat pipe working fluid transfers heat from the heat block to a heat exchanger for power conversion. Single phase gas pressure controls the flow of the working fluid for maximum heat exchange and to provide passive cooling.

Walter, C.E.; Van Konynenburg, R.; VanSant, J.H.

1990-09-06T23:59:59.000Z

196

Thulium-170 heat source  

DOE Patents [OSTI]

An isotopic heat source is formed using stacks of thin individual layers of a refractory isotopic fuel, preferably thulium oxide, alternating with layers of a low atomic weight diluent, preferably graphite. The graphite serves several functions: to act as a moderator during neutron irradiation, to minimize bremsstrahlung radiation, and to facilitate heat transfer. The fuel stacks are inserted into a heat block, which is encased in a sealed, insulated and shielded structural container. Heat pipes are inserted in the heat block and contain a working fluid. The heat pipe working fluid transfers heat from the heat block to a heat exchanger for power conversion. Single phase gas pressure controls the flow of the working fluid for maximum heat exchange and to provide passive cooling.

Walter, Carl E. (Pleasanton, CA); Van Konynenburg, Richard (Livermore, CA); VanSant, James H. (Tracy, CA)

1992-01-01T23:59:59.000Z

197

Historical and geographical variations of sources and transport of terrigenous organic matter within a large-scale  

E-Print Network [OSTI]

¯uence from anthropogenic lignin. A global mass balance calculation suggests that about half of the global

Louchouarn, Patrick

198

Advanced Light Source  

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

Next >> Next >> Visitors Access to the ALS Gate Access guest-house Guest House lab-shuttles Lab Shuttles maps-and-directions Maps and Directions Parking Safety Safety for Users safety-for-staff Safety for Staff In Case of Emergency Resources Acronyms Multimedia Employment staff-intranet Staff Intranet Site Map Contact Digg: ALSBerkeleyLab Facebook Page: 208064938929 Flickr: advancedlightsource Twitter: ALSBerkeleyLab YouTube: AdvancedLightSource January 2014 Sun Mon Tue Wed Thu Fri Sat 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Recent Science Highlights Minding the Gap Makes for More Efficient Solar Cells Using novel materials to develop thin, flexible, and more efficient photovoltaic cells is one of the hottest topics in current materials research. A class of transition metals undergo a dramatic change that makes them ideal for solar energy applications.

199

Light Sources Directorate Strategic Plan  

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

Light Sources Directorate Light Sources Directorate Strategic Plan December 2009 Light Sources Directorate Strategic Plan December 2009 ii | Vision and Mission Light Sources Directorate Strategic Plan The VISION of the Light Sources Directorate is: to be a provider of choice for world-class photon science and facilities that deliver outstanding scientific productivity and impact, and to be recognized as a leader in developing innovative techniques and ap- plications of photon science Our MISSION is defined by the set of activities that are required to realize this vision: to advance scientific knowledge and to solve critical problems through the design, construction, operation, and use of premier photon science facilities | Table of Contents Light Sources Directorate Strategic Plan

200

Anthropogenic 236U at Rocky Flats, Ashtabula river harbor, and Mersey estuary: three case studies by sector inductively coupled plasma mass spectrometry  

Science Journals Connector (OSTI)

236U (t1/2=2.3×107 y) is formed as a result of thermal neutron capture by 235U. In naturally occurring U ores, where a high neutron flux is present from spontaneous fission of 238U, 236U/238U atom ratios are ~10?4 ppm. In the natural Earth’s crust, unaffected by nuclear fallout, these ratios are expected to be on the order of 10?8 ppm. Reactor-irradiated U, however, exhibits high 236U/238U atom ratios approaching 104 ppm. As a result, the presence of very small quantities of reactor-irradiated U will significantly enhance the ‘background’ 236U/238U atom ratio. When sufficiently elevated 236U/238U ratios are present, the determination of 236U/238U by rapid inductively coupled plasma mass spectrometric (ICPMS) methods is attractive. We have used sector ICPMS at medium resolving power (R=3440) to measure 236U/238U atom ratios with a determination limit of 0.2 ppm. The limiting factors in the measurement are the 235U1H+ isobar and background signal at m/z 236 arising from the 238U+ peak tail. Based upon the analysis of replicates and considerations of possible systematic errors, uncertainties of ±5% are found for 236U/238U atom ratios of 1?100 ppm. This procedure has been demonstrated in studies of anthropogenic 236U in the environment at three locations: (a) offsite soils from the vicinity of the Rocky Flats Environmental Technology site (Golden, Colorado, USA); (b) sediments from the Ashtabula River (Ohio, USA); and (c) sediments from the Mersey estuary (Liverpool, UK). In each of these three locations, definite plumes of elevated 236U/238U are identified and characterized. Maximum 236U/238U atom ratios observed in RFETS-vicinity soils, the Ashtabula River, and the Mersey Estuary are 2.8, 140, and 4.4 ppm, respectively.

M.E Ketterer; K.M Hafer; C.L Link; C.S Royden; W.J Hartsock

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Metrology Sources for EUV Lithography  

Science Journals Connector (OSTI)

Mask inspection and validation are key elements of the EUV lithography infrastructure. Requirements for the light sources to enable these tools will be ...

Home, Steve; Blackborow, Paul; Bensen, Matthew M; Partlow, Matthew J; Gustafson, Deborah; Goldstein, Michael

202

Sponsored E-Source Membership  

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

Research Reports DSMdat - Exclusive DSM Programs Database E Source Efficiency & Demand-Response Programs Service (EDRP) With EDRP, you'll discover ways to make your EE and...

203

Source Selection | Department of Energy  

Office of Environmental Management (EM)

Status Reporting Requirement (pdf) Source Evaluation Board (SEB) Secretariat and Knowledge Manager - Acquisition Guide Chapter 1.4 (pdf) Acquisition Planning - Acquisition...

204

Presentation: Synchrotron Radiation Light Sources  

Broader source: Energy.gov [DOE]

A briefing to the Secretary's Energy Advisory Board on Synchrotron Radiation Light Sources delivered by Patricia Dehmer, U.S. Department of Energy

205

Linac Coherent Light Source Overview  

ScienceCinema (OSTI)

Take an animated tour of the Linac Coherent Light Source (LCLS). Follow the laser pulse from the injector gun all the way through to the Far Experimental Hall.

None

2013-05-29T23:59:59.000Z

206

Video Library | Advanced Photon Source  

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

Video Library Related Links: APS Colloquium APS Podcasts APS Today More videos: Introduction to the APS Physics of the Blues Now Playing: Building the Advanced Photon Source This...

207

Alternative Energy Sources – Myths and Realities  

E-Print Network [OSTI]

Alternative Energy Sources - Myths and Realities Walterneed to think about alternative energy sources; the worlddepletion of oil? Alternative energy sources can be divided

Youngquist, Walter

1998-01-01T23:59:59.000Z

208

Ideas for Future Synchrotron Light Sources  

E-Print Network [OSTI]

of very-high-brightness electron sources, it is anticipatedcharacteristics for the electron source, given in u_ble 1.Table 1 Electron Source Characteristics Characteristic f

Jackson, A.

2011-01-01T23:59:59.000Z

209

Anthropogenic modification of the oceans  

Science Journals Connector (OSTI)

...calcification in the coralline alga Hydrolithon decreased following...concentration. Epiphytic coralline algae are much less abundant in low-pH...that, like corals, coralline algae will be highly susceptible to...currently very little fossil fuel CO2 in the deep ocean. However...

2011-01-01T23:59:59.000Z

210

Anthropogenic modification of the oceans  

Science Journals Connector (OSTI)

...owing in part to the global economic recession...gmd/ccgg/trends/#global ). Human activities have...burning of fossil fuels (coal, oil, gas), but also...vegetation-[2]. 2. Global warming The most well known of...

2011-01-01T23:59:59.000Z

211

The Politics of the Anthropogenic  

E-Print Network [OSTI]

of Nature," Williams (1980) suggested that the Industrial Revolution strengthened an abstract, idealist) and many others, meanwhile, the Industrial Revolution marks the beginning of the Anthro- pocene, because it nonetheless maintains are both strongly linked to industrial capital- ism. In his brilliant essay "Ideas

Sayre, Nathan

212

Hollow electrode plasma excitation source  

DOE Patents [OSTI]

A plasma source incorporates a furnace as a hollow anode, while a coaxial cathode is disposed therewithin. The source is located in a housing provided with an ionizable gas such that a glow discharge is produced between anode and cathode. Radiation or ionic emission from the glow discharge characterizes a sample placed within the furnace and heated to elevated temperatures. 5 figs.

Ballou, N.E.

1992-04-14T23:59:59.000Z

213

Building the Advanced Photon Source  

SciTech Connect (OSTI)

This timelapse video shows the U.S. Department of Energy's Advanced Photon Source (APS) rising from an empty field at Argonne National Laboratory to become the source of the Western Hemisphere's brightest x-rays for research. The video was compiled from still photographs taken from 1990-1996.

None

2010-01-01T23:59:59.000Z

214

Perytons and their Possible Sources  

E-Print Network [OSTI]

Perytons are terrestrial signals that exhibit dispersion measure (DM) similar to pulsars. In trying to identify terrestrial sources of such perytons, investigation into signals from airborne equipment (aircraft), RFI emissions from electronics and lightning phenomenon reveals that the possible sources of perytons could be lightning phenomenon. Narrow Bipolar Pulses (NBPs) and Terrestrial Gamma Flashes (TGFs) are good investigational candidates.

Khan, Mohammad Danish

2014-01-01T23:59:59.000Z

215

BSTBacterial Source Tracking Conference Proceedings  

E-Print Network [OSTI]

BSTBacterial Source Tracking Conference Proceedings 2012 Bacterial Source Tracking State Conference Conference Proceedings Prepared by: Lucas Gregory, Texas Water Resources Institute Courtney Smith of the Science Conference Texas Water Resources Institute TR-427 June 2012 #12;#12;Texas Water Resources

216

Assessing sources of airborne mineral dust and other aerosols, in Iraq  

Science Journals Connector (OSTI)

Most airborne particulate matter in Iraq comes from mineral dust sources. This paper describes the statistics and modeling of chemical results, specifically those from Teflon® filter samples collected at Tikrit, Balad, Taji, Baghdad, Tallil and Al Asad, in Iraq, in 2006/2007. Methodologies applied to the analytical results include calculation of correlation coefficients, Principal Components Analysis (PCA), and Positive Matrix Factorization (PMF) modeling. PCA provided a measure of the covariance within the data set, thereby identifying likely point sources and events. These include airborne mineral dusts of silicate and carbonate minerals, gypsum and salts, as well as anthropogenic sources of metallic fumes, possibly from battery smelting operations, and emissions of leaded gasoline vehicles. Five individual PMF factors (source categories) were modeled, four of which being assigned to components of geological dust, and the fifth to gasoline vehicle emissions together with battery smelting operations. The four modeled geological components, dust-siliceous, dust-calcic, dust-gypsum, and evaporate occur in variable ratios for each site and size fraction (TSP, PM10, and PM2.5), and also vary by season. In general, Tikrit and Taji have the largest and Al Asad the smallest percentages of siliceous dust. In contrast, Al Asad has the largest proportion of gypsum, in part representing the gypsiferous soils in that region. Baghdad has the highest proportions of evaporite in both size fractions, ascribed to the highly salinized agricultural soils, following millennia of irrigation along the Tigris River valley. Although dust storms along the Tigris and Euphrates River valleys originate from distal sources, the mineralogy bears signatures of local soils and air pollutants.

Johann P. Engelbrecht; R.K.M. Jayanty

2013-01-01T23:59:59.000Z

217

Fourth Generation Light Source Workshop  

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

The Workshop on Scientific Opportunities for Fourth Generation Light The Workshop on Scientific Opportunities for Fourth Generation Light Sources October 27 to 29, 1997 at the Advanced Photon Source at Argonne National Laboratory. This workshop is being co-hosted by APS, NSLS, SSRL and TJNAF. FGLSlogo This workshop will explore the phenomenology of interactions with ultra-high-power, -brilliance, and -coherence light sources in the DUV, soft x-ray, and x-ray regimes, as well as the scientific opportunities they provide. The workshop will begin with tutorials on the generation and properties of these sources and identify issues in their use in experimentation. Also included will be an overview of current efforts to develop these sources and a review of the scientific opportunities defined by previous research and workshops. These background talks will be followed

218

Sealed source peer review plan  

SciTech Connect (OSTI)

Sealed sources are known quantities of radioactive materials that have been encapsulated in quantities that produce known radiation fields. Sealed sources have multiple uses ranging from instrument calibration sources to sources that produce radiation fields for experimental applications. The Off-Site Source Recovery (OSR) Project at Los Alamos National Laboratory (LANL), created in 1999, under the direction of the Waste Management Division of the U.S. Department of Energy (DOE) Albuquerque has been assigned the responsibility to recover and manage excess and unwanted radioactive sealed sources from the public and private sector. LANL intends to ship drums containing qualified sealed sources to the Waste Isolation Pilot Plant (WIPP) for disposal. Prior to shipping, these drums must be characterized with respect to radiological content and other parameters. The U. S. Environmental Protection Agency (EPA) requires that ten radionulcides be quantified and reported for every container of waste to be disposed in the WIPP. The methods traditionally approved by the EPA include non-destructive assay (NDA) in accordance with Appendix A of the Contact-Handled Transuranic Waste Acceptance Criteria for the Waste Isolation Pilot Plant (DOE, 2002) (CH WAC). However, because of the nature and pedigree of historical records for sealed sources and the technical infeasibility of performing NDA on these sources, LANL proposes to characterize the content of these waste drums using qualified existing radiological data in lieu of direct measurement. This plan describes the process and documentation requirements for the use of the peer review process to qualify existing data for sealed radiological sources in lieu of perfonning radioassay. The peer review process will be performed in accordance with criteria provided in 40 CFR {section} 194.22 which specifies the use of the NUREG 1297 guidelines. The plan defines the management approach, resources, schedule, and technical requirements for the subject peer review.

Feldman, Alexander [Los Alamos National Laboratory; Leonard, Lee [RETIRED; Burns, Ron [CONTRACTOR

2009-01-01T23:59:59.000Z

219

Environmental Technology Verification of Mobile Sources Control...  

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

Environmental Technology Verification of Mobile Sources Control Technologies Environmental Technology Verification of Mobile Sources Control Technologies 2005 Diesel Engine...

220

California GAMA Special Study: An isotopic and dissolved gas investigation of nitrate source and transport to a public supply well in California's Central Valley  

SciTech Connect (OSTI)

This study investigates nitrate contamination of a deep municipal drinking water production well in Ripon, CA to demonstrate the utility of natural groundwater tracers in constraining the sources and transport of nitrate to deep aquifers in the Central Valley. The goal of the study was to investigate the origin (source) of elevated nitrate and the potential for the deep aquifer to attenuate anthropogenic nitrate. The site is ideal for such an investigation. The production well is screened from 165-325 feet below ground surface and a number of nearby shallow and deep monitoring wells were available for sampling. Furthermore, potential sources of nitrate contamination to the well had been identified, including a fertilizer supply plant located approximately 1000 feet to the east and local almond groves. A variety of natural isotopic and dissolved gas tracers including {sup 3}H-{sup 3}He groundwater age and the isotopic composition of nitrate are applied to identify nitrate sources and to characterize nitrate transport. An advanced method for sampling production wells is employed to help identify contaminant contributions from specific screen intervals. Nitrate transport: Groundwater nitrate at this field site is not being actively denitrified. Groundwater parameters indicate oxic conditions, the dissolved gas data shows no evidence for excess nitrogen as the result of denitrification, and nitrate-N and -O isotope compositions do not display patterns typical of denitrification. Contaminant nitrate source: The ambient nitrate concentration in shallow groundwater at the Ripon site ({approx}12 mg/L as nitrate) is typical of shallow groundwaters affected by recharge from agricultural and urban areas. Nitrate concentrations in Ripon City Well 12 (50-58 mg/L as nitrate) are significantly higher than these ambient concentrations, indicating an additional source of anthropogenic nitrate is affecting groundwater in the capture zone of this municipal drinking water well. This study provides two new pieces of evidence that the Ripon Farm Services Plant is the source of elevated nitrate in Ripon City Well 12. (1) Chemical mass balance calculations using nitrate concentration, nitrate isotopic composition, and initial tritium activity all indicate that that the source water for elevated nitrate to Ripon City Well 12 is a very small component of the water produced by City Well 12 and thus must have extremely high nitrate concentration. The high source water nitrate concentration ({approx}1500 mg/L as nitrate) required by these mass balance calculations precludes common sources of nitrate such as irrigated agriculture, dairy wastewater, and septic discharge. Shallow groundwater under the Ripon Farm Services RFS plant does contain extremely high concentrations of nitrate (>1700 mg/L as nitrate). (2) Nitrogen and oxygen isotope compositions of nitrate indicate that the additional anthropogenic nitrate source to Ripon City Well 12 is significantly enriched in {delta}{sup 18}O-NO{sub 3}, an isotopic signature consistent with synthetic nitrate fertilizer, and not with human or animal wastewater discharge (i.e. dairy operations, septic system discharge, or municipal wastewater discharge), or with organic fertilizer. Monitoring wells on and near the RFS plant also have high {delta}{sup 18}O-NO{sub 3}, and the plant has handled and stored synthetic nitrate fertilizer that will have this isotopic signature. The results described here highlight the complexity of attributing nitrate found in long screened, high capacity wells to specific sources. In this case, the presence of a very high concentration source near the well site combined with sampling using multiple isotopic tracer techniques and specialized depth-specific techniques allowed fingerprinting of the source in the mixed-age samples drawn from the production well.

Singleton, M J; Moran, J E; Esser, B K; Roberts, S K; Hillegonds, D J

2010-04-14T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Advanced Photon Source Industrial Liaison Office | Advanced Photon Source  

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

Industrial Liaison Office Industrial Liaison Office registration page New to Synchrotron Radiation New to the APS Already a User Advanced Photon Source Industrial Liaison Office APS Welcome to the Advanced Photon Source Welcome to the Advanced Photon Source (APS) at Argonne National Laboratory. We are one of five synchrotron radiation light sources operated as national user facilities by the U.S. Department of Energy's Office of Science. The APS is open to everyone who can utilize extremely bright x-ray photon beams for high-value research. This premier national research facility provides these x-ray beams to more than 5,000 scientists from all 50 United States, the District of Columbia, Puerto Rico, and several foreign countries. These scientists come to the APS from industry, universities,

222

Three chamber negative ion source  

DOE Patents [OSTI]

It is an object of this invention provide a negative ion source which efficiently provides a large flux of negatively ionized particles. This invention provides a volume source of negative ions which has a current density sufficient for magnetic fusion applications and has electrons suppressed from the output. It is still another object of this invention to provide a volume source of negative ions which can be electrostatically accelerated to high energies and subsequently neutralized to form a high energy neutral beam for use with a magnetically confined plasma.

Leung, K.N.; Ehlers, K.W.; Hiskes, J.R.

1983-11-10T23:59:59.000Z

223

APS Upgrade | Advanced Photon Source  

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

Workshop on new science opportunities provided by a multi-bend achromat lattice at the APS APS-U MBA Lattice Workshop Registration is now closed. Please contact Diane Wilkinson ext. 7810 or a member of the Workshop Organizing Committee for changes or modifications to your registration. Submit Comments, Suggestions, and Ideas for MBA Lattice Workshop October 21-22 Advanced Photon Source Argonne National Lab The Advanced Photon Source Upgrade is focused on delivering a powerful, versatile facility for science using high-brightness, high-energy X-rays. At APS, and around the light source community, scientists have been developing storage ring designs that push closer to the ultimate diffraction limit for X-ray sources. A recent report by the Basic Energy Sciences Advisory Committee, which advises the Director of the U.S.

224

Carbon-Neutral Energy Sources  

Science Journals Connector (OSTI)

Among the main approaches to decarbonizing global economy, the switching to carbon-neutral energy sources such as nuclear and renewables (solar, wind, biomass, etc.) is mentioned most often. Nuclear energy is ...

Nazim Muradov

2014-01-01T23:59:59.000Z

225

Reordering with source language collocations  

Science Journals Connector (OSTI)

This paper proposes a novel reordering model for statistical machine translation (SMT) by means of modeling the translation orders of the source language collocations. The model is learned from a word-aligned bilingual corpus where the collocated words ...

Zhanyi Liu; Haifeng Wang; Hua Wu; Ting Liu; Sheng Li

2011-06-01T23:59:59.000Z

226

Next Generation Light Source Workshops  

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

Next Generation Light Source Workshops A series of workshops will be held in late August with the goal of refining the scientific drivers for the facility and translating the...

227

Renewable energy sources for Egypt  

Science Journals Connector (OSTI)

On the basis of present consumption patterns and reserve estimates, Selim Estefan predicts that Egypt and other developing countries will face severe fossil fuel supply problems unless they invest now in rapid development of renewable sources. He outlines some of the Egyptian renewable energy projects currently underway or being studied, and argues that the immediate exploitation of indigenous renewable sources is both economically feasible and can be achieved with existing technology.

Selim F. Estefan

1980-01-01T23:59:59.000Z

228

H- radio frequency source development at the Spallation Neutron Source  

SciTech Connect (OSTI)

The Spallation Neutron Source (SNS) now routinely operates nearly 1 MW of beam power on target with a highly persistent {approx}38 mA peak current in the linac and an availability of {approx}90%. H{sup -} beam pulses ({approx}1 ms, 60 Hz) are produced by a Cs-enhanced, multicusp ion source closely coupled with an electrostatic low energy beam transport (LEBT), which focuses the 65 kV beam into a radio frequency quadrupole accelerator. The source plasma is generated by RF excitation (2 MHz, {approx}60 kW) of a copper antenna that has been encased with a thickness of {approx}0.7 mm of porcelain enamel and immersed into the plasma chamber. The ion source and LEBT normally have a combined availability of {approx}99%. Recent increases in duty-factor and RF power have made antenna failures a leading cause of downtime. This report first identifies the physical mechanism of antenna failure from a statistical inspection of {approx}75 antennas which ran at the SNS, scanning electron microscopy studies of antenna surface, and cross sectional cuts and analysis of calorimetric heating measurements. Failure mitigation efforts are then described which include modifying the antenna geometry and our acceptance/installation criteria. Progress and status of the development of the SNS external antenna source, a long-term solution to the internal antenna problem, are then discussed. Currently, this source is capable of delivering comparable beam currents to the baseline source to the SNS and, an earlier version, has briefly demonstrated unanalyzed currents up to {approx}100 mA (1 ms, 60 Hz) on the test stand. In particular, this paper discusses plasma ignition (dc and RF plasma guns), antenna reliability, magnet overheating, and insufficient beam persistence.

Welton, Robert F [ORNL; Pennisi, Terry R [ORNL; Roseberry, Ron T [ORNL; Stockli, Martin P [ORNL

2012-01-01T23:59:59.000Z

229

Assessment of natural and anthropogenic radioactivity levels in soils, rocks and water in the vicinity of Chirano Gold Mine in Ghana  

Science Journals Connector (OSTI)

......gamma-ray exposure from natural radioactivity concentrations...drinking water containing natural radioactivity due to...inhalation of airborne radon gas for the area where both...concentrations in surface soils in Cyprus. J. Environ. Radioact...UNSCEAR. Exposures from natural sources of radiation......

A. Faanu; H. Lawluvi; D. O. Kpeglo; E. O. Darko; G. Emi-Reynolds; A. R. Awudu; O. K. Adukpo; C. Kansaana; I. D. Ali; B. Agyeman; L. Agyeman; R. Kpodzro

2014-01-01T23:59:59.000Z

230

ProClim-Flash | No 57, June 201318 Figure 1: Swiss CH4 fluxes from (a) anthropogenic (agriculture, energy, waste) and (b) natural contributors (wetlands, lakes and  

E-Print Network [OSTI]

April 2013 under the United Nations Framework Convention on Climate Change and under the Kyoto Protocol layers representing CH4 emissions from wastewater treatment and natural sources and sinks (Figure 1b by the CCES projects ENHANCE, www.cces.ethz.ch/ projects/sulu/ENHANCE, and BioChange, www.cces.ethz.ch/projects/clench/BioChange

231

Compton Sources of Electromagnetic Radiation  

SciTech Connect (OSTI)

When a relativistic electron beam interacts with a high-field laser beam, intense and highly collimated electromagnetic radiation will be generated through Compton scattering. Through relativistic upshifting and the relativistic Doppler effect, highly energetic polarized photons are radiated along the electron beam motion when the electrons interact with the laser light. For example, X-ray radiation can be obtained when optical lasers are scattered from electrons of tens-of-MeV beam energy. Because of the desirable properties of the radiation produced, many groups around the world have been designing, building, and utilizing Compton sources for a wide variety of purposes. In this review article, we discuss the generation and properties of the scattered radiation, the types of Compton source devices that have been constructed to date, and the prospects of radiation sources of this general type. Due to the possibilities of producing hard electromagnetic radiation in a device that is small compared to the alternative storage ring sources, it is foreseen that large numbers of such sources may be constructed in the future.

Geoffrey Krafft,Gerd Priebe

2011-01-01T23:59:59.000Z

232

Video Library | Advanced Photon Source  

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

Media Center: Media Center: Calendar of Events APS News User News Article Archives APS Brochure Annual Reports Posters Podcasts Image Gallery external site Video Library Syndicated Feeds (RSS) Featured Videos: Introduction to the Advanced Photon Source The Advanced Photon Source An introduction and overview of the technology that produces the brightest x-ray beams in the Western Hemisphere, and the research carried out by scientists using those x-rays. Timelapse of the APS construction Building the APS A timelapse video from 1990-1995 that shows the Advanced Photon Source rising from an empty field to become the site of a national synchrotron x-ray research facility. Physics of the Blues Physics of the Blues In looking at commonalities between music and science, former PSC Director

233

Energy Sources | Department of Energy  

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

Energy Sources Energy Sources Energy Sources December 12, 2013 AEMC Summit Slideshow: Innovation in the Manufacturing Sector Learn how advanced technologies are helping manufacturers reduce waste, increase productivity and become leaders in the clean energy economy. October 16, 2013 West Penn Power SEF Commercial Loan Program The West Penn Power Sustainable Energy Fund (WPPSEF) promotes the use of renewable energy and clean energy among commercial, industrial, institutional and residential customers in the West Penn market region. Eligible technologies include solar, wind, low-impact hydro, and sustainable biomass such as closed-loop biomass and biomass gasification, as well as energy efficiency. October 16, 2013 UES - Renewable Energy Credit Purchase Program '''''Note: The Arizona Corporation Commission (ACC) is in the process of

234

E Source | Open Energy Information  

Open Energy Info (EERE)

Source Source Jump to: navigation, search Name E Source Address 1965 North 57th Court Place Boulder, CO Zip 80301 Product Research firm Year founded 1986 Number of employees 51-200 Phone number 303.345.9000 Website [www.esource.com www.esource.com ] Coordinates 40.01895°, -105.2207964° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.01895,"lon":-105.2207964,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

235

SNS | Spallation Neutron Source | ORNL  

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

SNS SNS Instruments Working with SNS Contact Us User Program Manager Laura Morris Edwards 865.574.2966 Spallation Neutron Source Home | User Facilities | SNS SNS | Spallation Neutron Source SHARE SNS is an accelerator-based neutron source in Oak Ridge, Tennessee, USA. This one-of-a-kind facility provides the most intense pulsed neutron beams in the world for scientific research and industrial development. The 80-acre SNS site is located on Chestnut Ridge and is part of Oak Ridge National Laboratory. Although most people don't know it, neutron scattering research has a lot to do with our everyday lives. For example, things like medicine, food, electronics, and cars and airplanes have all been improved by neutron scattering research. Neutron research also helps scientists improve materials used in a

236

Miniature x-ray source  

DOE Patents [OSTI]

A miniature x-ray source utilizing a hot filament cathode. The source has a millimeter scale size and is capable of producing broad spectrum x-ray emission over a wide range of x-ray energies. The miniature source consists of a compact vacuum tube assembly containing the hot filament cathode, an anode, a high voltage feedthru for delivering high voltage to the cathode, a getter for maintaining high vacuum, a connector for initial vacuum pump down and crimp-off, and a high voltage connection for attaching a compact high voltage cable to the high voltage feedthru. At least a portion of the vacuum tube wall is fabricated from highly x-ray transparent materials, such as sapphire, diamond, or boron nitride.

Trebes, James E. (Livermore, CA); Bell, Perry M. (Tracy, CA); Robinson, Ronald B. (Modesto, CA)

2000-01-01T23:59:59.000Z

237

Compact portable electric power sources  

SciTech Connect (OSTI)

This report provides an overview of recent advances in portable electric power source (PEPS) technology and an assessment of emerging PEPS technologies that may meet US Special Operations Command`s (SOCOM) needs in the next 1--2- and 3--5-year time frames. The assessment was performed through a literature search and interviews with experts in various laboratories and companies. Nineteen PEPS technologies were reviewed and characterized as (1) PEPSs that meet SOCOM requirements; (2) PEPSs that could fulfill requirements for special field conditions and locations; (3) potentially high-payoff sources that require additional R and D; and (4) sources unlikely to meet present SOCOM requirements. 6 figs., 10 tabs.

Fry, D.N.; Holcomb, D.E.; Munro, J.K.; Oakes, L.C.; Matson, M.J.

1997-02-01T23:59:59.000Z

238

Best Management Practice #14: Alternate Water Sources  

Broader source: Energy.gov [DOE]

Many Federal facilities may have water uses that can be met with non-potable water from alternate water sources. Potentially available alternative water sources for Federal sources include...

239

4th Generation ECR Ion Sources  

E-Print Network [OSTI]

4th Generation ECR Ion Sources Claude M Lyneis, D. Leitner,to developing a 4 th generation ECR ion source with an RFover current 3 rd generation ECR ion sources, which operate

Lyneis, Claude M.

2010-01-01T23:59:59.000Z

240

Mercury Effects, Sources and Control Measures  

E-Print Network [OSTI]

Mercury Effects, Sources and Control Measures Prepared by Alan B. Jones, Brooks Rand, Ltd., Seattle ................................................................................................................................1 MERCURY SOURCES....................................................................................................................................................................................8 Mercury dumping from naval vessels

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

LightSource Renewables | Open Energy Information  

Open Energy Info (EERE)

LightSource Renewables Jump to: navigation, search Name: LightSource Renewables Place: San Diego, California Zip: 92121 Sector: Wind energy Product: Wind project developer...

242

Controlling proton source speeds catalyst | EMSL  

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

Controlling proton source speeds catalyst Controlling proton source speeds catalyst Nickel-based catalyst three times faster with adjustments to key acid Research showing that...

243

Science and Technology of Future Light Sources  

E-Print Network [OSTI]

and Technology of Future Light Sources   Far from Equilibrium Chemical Processes in a Functional Solar Cellsolar cell (DSSC). [Source: Michael Graetzel, Swiss Federal Institute of Technology,

Bergmann, Uwe

2009-01-01T23:59:59.000Z

244

RECENT PROGRESS IN HEAVY ION SOURCES  

E-Print Network [OSTI]

of hydrogen into thermonuclear fusion reactors. A summary ofFusion Plasma Sources Other sources of high charge state ions include the dense plasma in magnetic confinement thermonuclear

Clark, D.J.

2010-01-01T23:59:59.000Z

245

Alternative Energy Sources - An Interdisciplinary Module for...  

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

Alternative Energy Sources - An Interdisciplinary Module for Energy Education Alternative Energy Sources - An Interdisciplinary Module for Energy Education Below is information...

246

Diamondoid Monolayers as Monochromatic Electron Source  

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

Diamondoid Monolayers as Monochromatic Electron Source Diamondoid Monolayers as Monochromatic Electron Source Print Wednesday, 28 November 2007 00:00 Diamondoids are...

247

Reporting of Radioactive Sealed Sources  

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

To establish U.S. Department of Energy requirements for inventory reporting, transaction reporting, verification of reporting, and assign responsibilities for reporting of radioactive sealed sources. DOE N 251.86 extends this notice until 5-6-11. No cancellations. Canceled by DOE O 231.1B

2008-02-27T23:59:59.000Z

248

MIT inverse Compton source concept  

E-Print Network [OSTI]

A compact X-ray source based on inverse Compton scattering of a high-power laser on a high-brightness linac beam is described. The facility can operate in two modes: at high (MHz) repetition rate with flux and brilliance ...

Graves, William S.

249

Known and unknown SCUBA sources  

E-Print Network [OSTI]

Summary and discussion of some projects to use SCUBA to target sources selected at other wavebands, as well as to find new sub-mm galaxies in `blank fields': FIRBACK galaxies; Lyman break galaxies and `the Blob'; HDF flanking fields and the Groth Strip; survey of lensing cluster fields.

Douglas Scott; Colin Borys; Mark Halpern; Anna Sajina; Scott Chapman; Greg Fahlman

2000-10-25T23:59:59.000Z

250

Lesson 2: Energy Sources Overview  

E-Print Network [OSTI]

Earth's internal heat; ­solar energy from the Sun; ­gravitaDonal energy · There are three sources of external energy: ­ solar energy: radiant energy from and some is converted to tsunami #12;Overview · Solar Energy: ­ Of the three

Chen, Po

251

Focused X-ray source  

DOE Patents [OSTI]

Disclosed is an intense, relatively inexpensive X-ray source (as compared to a synchrotron emitter) for technological, scientific, and spectroscopic purposes. A conical radiation pattern produced by a single foil or stack of foils is focused by optics to increase the intensity of the radiation at a distance from the conical radiator. 8 figs.

Piestrup, M.A.; Boyers, D.G.; Pincus, C.I.; Maccagno, P.

1990-08-21T23:59:59.000Z

252

EAT SMART Sources: Heart Health  

E-Print Network [OSTI]

-1- EAT SMART Sources: Heart Health American Dietetic Association Complete Food and Nutrition Guide and Promotion; Home and Garden Bulletin Number 252; August 1992. Heart Attach Signs, U.S. Department of Health and Human Services: National Institutes of Heart, Lung, and Blood Institute, NIH Publication No. 01

253

Energy Sources: A Realistic Outlook  

Science Journals Connector (OSTI)

...1990 ). YERASHALMI, J, 11TH P INT FBC C MON 553 ( 1991 ). Energy sources...electricity gen-983 ofoil shales in utility boilers becomes margin-ally economic (6...Proceedings of the 11th Interna-tional FBC Conference, Montreal, Canada (Amer-ican...

Chauncey Starr; Milton F. Searl; Sy Alpert

1992-05-15T23:59:59.000Z

254

8, 80918118, 2008 Aerosol source  

E-Print Network [OSTI]

and markers are discussed. 1 Introduction Biomass combustion is a major global source of particulate matter for Materials Testing and Research, Laboratory for Internal Combustion Engines, 8600 Duebendorf, Switzerland Discussion Abstract Residential wood combustion has only recently been recognized as a major contributor

Paris-Sud XI, Université de

255

Sources of Weakness in Glass  

Science Journals Connector (OSTI)

...October 1964 research-article Sources of Weakness in Glass C. Gurney The theoretical strength of glass is of the order of 2 to 5 MLb./in.$^2$ At room temperature, common glasses with undamaged surfaces give breaking stresses of about...

1964-01-01T23:59:59.000Z

256

Miniaturized cathodic arc plasma source  

DOE Patents [OSTI]

A cathodic arc plasma source has an anode formed of a plurality of spaced baffles which extend beyond the active cathode surface of the cathode. With the open baffle structure of the anode, most macroparticles pass through the gaps between the baffles and reflect off the baffles out of the plasma stream that enters a filter. Thus the anode not only has an electrical function but serves as a prefilter. The cathode has a small diameter, e.g. a rod of about 1/4 inch (6.25 mm) diameter. Thus the plasma source output is well localized, even with cathode spot movement which is limited in area, so that it effectively couples into a miniaturized filter. With a small area cathode, the material eroded from the cathode needs to be replaced to maintain plasma production. Therefore, the source includes a cathode advancement or feed mechanism coupled to cathode rod. The cathode also requires a cooling mechanism. The movable cathode rod is housed in a cooled metal shield or tube which serves as both a current conductor, thus reducing ohmic heat produced in the cathode, and as the heat sink for heat generated at or near the cathode. Cooling of the cathode housing tube is done by contact with coolant at a place remote from the active cathode surface. The source is operated in pulsed mode at relatively high currents, about 1 kA. The high arc current can also be used to operate the magnetic filter. A cathodic arc plasma deposition system using this source can be used for the deposition of ultrathin amorphous hard carbon (a-C) films for the magnetic storage industry.

Anders, Andre (Albany, CA); MacGill, Robert A. (Richmond, CA)

2003-04-15T23:59:59.000Z

257

Spallation Neutron Source The Spallation Neutron Source (SNS)  

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

F/gim F/gim Spallation Neutron Source The Spallation Neutron Source (SNS) gives researchers more detailed informa- tion on the structure and dynamics of physical and biological materials than ever before possible. This accelerator- based facility provides the most intense pulsed neutron beams in the world. Scien- tists are able to count scattered neutrons, measure their energies and the angles at which they scatter, and map their final positions. SNS enables measurements of greater sensitivity, higher speed, higher resolution, and in more complex sample environments than have been possible at existing neutron facilities. Future Growth SNS was designed from the outset to accommodate a second target station, effectively doubling the capacity of the

258

Best Management Practice #14: Alternative Water Sources  

Broader source: Energy.gov [DOE]

Many federal facilities may have water uses that can be met with non-potable water from alternative water sources. Potentially available alternative water sources for Federal sources include municipal-supplied reclaimed water, treated gray water from on-site sanitary sources, and storm water.

259

National Synchrotron Light Source annual report 1991  

SciTech Connect (OSTI)

This report contains abstracts from research conducted at the national synchrotron light source. (LSP)

Hulbert, S.L.; Lazarz, N.N. (eds.)

1992-04-01T23:59:59.000Z

260

Fusion-A Potential Power Source  

Science Journals Connector (OSTI)

Fusion-A Potential Power Source ... Nuclear energy, fusion reactions, magnetic confinement, and tokamaks. ...

Torkil H. Jensen

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Next Generation Light Source Workshops  

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

Next Generation Light Source Workshops Next Generation Light Source Workshops A series of workshops will be held in late August with the goal of refining the scientific drivers for the facility and translating the scientific needs into the technical performance requirements. Feedback from these workshops will provide important input for advancing the design of the facility. Workshops are planned in the following areas Fundamental Atomic, Molecular, Optical Physics & Combustion Dynamics Mon. Aug. 20 - Tues. Aug 21, 2012 Physical Chemistry, Catalysis, & Photosynthesis Thurs. Aug. 23 - Fri. Aug 24, 2012 Quantum Materials, Magnetism & Spin Dynamics Mon. Aug. 27 - Tues. Aug 28, 2012 Materials & Bio-imaging at the Nanoscale Thurs. Aug. 30 - Fri. Aug 31, 2012 Further information is available on the workshop website:

262

Resonance Ionization Laser Ion Sources  

E-Print Network [OSTI]

The application of the technique of laser resonance ionization to the production of singly charged ions at radioactive ion beam facilities is discussed. The ability to combine high efficiency and element selectivity makes a resonance ionization laser ion source (RILIS) an important component of many radioactive ion beam facilities. At CERN, for example, the RILIS is the most commonly used ion source of the ISOLDE facility, with a yearly operating time of up to 3000 hours. For some isotopes the RILIS can also be used as a fast and sensitive laser spectroscopy tool, provided that the spectral resolution is sufficiently high to reveal the influence of nuclear structure on the atomic spectra. This enables the study of nuclear properties of isotopes with production rates even lower than one ion per second and, in some cases, enables isomer selective ionization. The solutions available for the implementation of resonance laser ionization at radioactive ion beam facilities are summarized. Aspects such as the laser r...

Marsh, B

2013-01-01T23:59:59.000Z

263

Electron cooling for positron sources  

Science Journals Connector (OSTI)

Electron cooling of positrons should make possible a large increase in the luminosity of future high-energy linear colliders, leading to greatly enhanced event rates at these machines. An evaluation of the electron-cooling-time requirement indicates that a positron-source repetition rate of 100 Hz is possible. Final positron-beam normalized emittances of 10-7 m rad should result, implying a tremendous increase in positron-beam density over that currently obtained.

D. J. Larson

1988-03-28T23:59:59.000Z

264

Compact x-ray source and panel  

DOE Patents [OSTI]

A compact, self-contained x-ray source, and a compact x-ray source panel having a plurality of such x-ray sources arranged in a preferably broad-area pixelized array. Each x-ray source includes an electron source for producing an electron beam, an x-ray conversion target, and a multilayer insulator separating the electron source and the x-ray conversion target from each other. The multi-layer insulator preferably has a cylindrical configuration with a plurality of alternating insulator and conductor layers surrounding an acceleration channel leading from the electron source to the x-ray conversion target. A power source is connected to each x-ray source of the array to produce an accelerating gradient between the electron source and x-ray conversion target in any one or more of the x-ray sources independent of other x-ray sources in the array, so as to accelerate an electron beam towards the x-ray conversion target. The multilayer insulator enables relatively short separation distances between the electron source and the x-ray conversion target so that a thin panel is possible for compactness. This is due to the ability of the plurality of alternating insulator and conductor layers of the multilayer insulators to resist surface flashover when sufficiently high acceleration energies necessary for x-ray generation are supplied by the power source to the x-ray sources.

Sampayon, Stephen E. (Manteca, CA)

2008-02-12T23:59:59.000Z

265

Influence of Dynamic Land Use and Land Cover Change on Simulated Global Terrestrial Carbon and Nitrogen Cycles, Climate-carbon Cycle Feedbacks, and Interactions with Rising CO2 and Anthropogenic Nitrogen Deposition  

SciTech Connect (OSTI)

Previous work has demonstrated the sensitivity of terrestrial net carbon exchange to disturbance history and land use patterns at the scale of individual sites or regions. Here we show the influence of land use and land cover dynamics over the historical period 1850-present on global-scale carbon, nutrient, water, and energy fluxes. We also explore the spatial and temporal details of interactions among land use and disturbance history, rising atmospheric carbon dioxide consentation, and increasing anthropogenic nitrogen deposition. Our simulations show that these interactions are significant, and that their importance grows over time, expressed as a fraction of the independent forcing terms. We conclude with an analysis of the influence of these interactions on the sign and magnitude of global climate-carbon cycle feedbacks.

Thornton, Peter E [ORNL; Hoffman, Forrest M [ORNL; Hurtt, George C [University of Hew Hampshire

2009-12-01T23:59:59.000Z

266

Detecting fission from special nuclear material sources  

DOE Patents [OSTI]

A neutron detector system for discriminating fissile material from non-fissile material wherein a digital data acquisition unit collects data at high rate, and in real-time processes large volumes of data directly into information that a first responder can use to discriminate materials. The system comprises counting neutrons from the unknown source and detecting excess grouped neutrons to identify fission in the unknown source. The system includes a graphing component that displays the plot of the neutron distribution from the unknown source over a Poisson distribution and a plot of neutrons due to background or environmental sources. The system further includes a known neutron source placed in proximity to the unknown source to actively interrogate the unknown source in order to accentuate differences in neutron emission from the unknown source from Poisson distributions and/or environmental sources.

Rowland, Mark S. (Alamo, CA); Snyderman, Neal J. (Berkeley, CA)

2012-06-05T23:59:59.000Z

267

Relating to monitoring ion sources  

DOE Patents [OSTI]

The apparatus and method provide techniques for monitoring the position on alpha contamination in or on items or locations. The technique is particularly applicable to pipes, conduits and other locations to which access is difficult. The technique uses indirect monitoring of alpha emissions by detecting ions generated by the alpha emissions. The medium containing the ions is moved in a controlled manner frog in proximity with the item or location to the detecting unit and the signals achieved over time are used to generate alpha source position information.

Orr, Christopher Henry (Calderbridge, GB); Luff, Craig Janson (Calderbridge, GB); Dockray, Thomas (Calderbridge, GB); Macarthur, Duncan Whittemore (Los Alamos, NM); Bounds, John Alan (Los Alamos, NM)

2002-01-01T23:59:59.000Z

268

Nomenclature of The Galactic Center Radio Sources  

E-Print Network [OSTI]

Since its identification as the Galactic Center, the radio source Sagittarius A has been a target of intense research. Due to the high density of sources in the Galactic Center and differing observing techniques, the nomenclature of sources in this region has changed over the years, with sources having several names, as well as the same names being used for different sources. We review this historical evolution in the context of current and previous scientific discussions, and outline how, why and when some of the commonly accepted names of Galactic Center sources were established.

Patrick Palmer; W. Miller Goss

1996-07-29T23:59:59.000Z

269

Repatriation of US sources from Brazil  

SciTech Connect (OSTI)

IAEA's interest in excess and unwanted sealed sources extends back to when radium sources were a problem throughout the world. Sta11ing in 1994, world wide IAEA member states inventoried and consolidated radium (Ra)-226 sources. IAEA then trained Regional Teams in the conditioning of Ra-226 sealed sources for long term storage, which resulted in the Regional Teams conditioning about 14,000 radium sources. These sources remained in their respective IAEA member state locations. Regional teams were seen as a way to encourage member state (local) management of a world wide problem, as well as a more cost effective solution.

Tompkins, Andrew J [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

270

5 - Surface Wave Plasma Sources  

Science Journals Connector (OSTI)

Publisher Summary This chapter summarizes the advantages of the surface wave (SW) plasma sources. It includes a summary of the wave and plasma properties of SW sustained plasma columns, review of the essential parts composing a SW plasma source; describes a family of efficient SW launchers for such plasma sources, dwells on three typical experimental arrangements and a brief summary recalling the advantages of SW plasma sources. Surface wave discharges have the advantage of the broadest operating conditions in terms of frequency, tube dimensions and shape, and gas pressure. For example they can be utilized over both the RF (radiofrequency) and microwave domains, which permits one to optimize given processes as a function of frequency (generally through changes in the electron energy distribution function). A further advantage of SW plasmas is that they are the best modeled HF plasmas. This provides insight into HF discharges in general since, to a first approximation, the local plasma properties of SW discharges are the same as in all RF and microwave discharges under given discharge conditions, and for a given HF power density deposited in the plasma. Compared to other RF and microwave plasma sources, SW discharges are undoubtedly the most flexible ones. They also are efficient discharges since very little HF power is lost in the impedance matching circuit. Finally, a major future avenue for these discharges is their operation as magnetized plasmas. As a first approach to presenting surface wave (SW) plasma sources, let us consider their distinctive features with respect to the other plasma sources described in the book:o1. The discharge can be sustained far away from the active zone of the field applicator. This is because the electric field supporting the discharge is provided by a wave that carries away the power from the applicator. It is an electromagnetic surface wave whose sole guiding structure is the plasma column that it sustains and the dielectric tube enclosing it [1]–[3]. This is, thus, a non-cumbersome method for producing long plasma columns; plasma columns up to 6 meters in length have been achieved in our laboratory while launching the wave with a field applicator that surrounded the discharge tube over a few centimeters in length only. [4][5] 2. The range of the applied field frequency f=?/2? is the broadest of all kinds of high frequency (HF) sustained plasma sources. We have succeeded in realizing HF power transfer to the discharge efficiently from approximately 10 \\{MHz\\} to 10 \\{GHz\\} [6] and, with impaired coupling efficiency, down to 200 kHz [7]. This frequency range includes radiofrequencies (RF) and the lower part of the microwave frequency spectrum; we use the term high frequencies to designate RF as well as microwave frequencies. An interesting aspect of this frequency flexibility is the possibility of acting on the electron energy distribution function (EEDF) to optimize a given plasma process [8]. 3. The gas pressure range is extremely large. On the one hand, one can operate SW discharges in the sub-mtorr range under electron cyclotron resonance (ECR) conditions, [9] while, on the other hand, it is possible to sustain a stable plasma of a few millimeters diameter at pressures at least a few times atmospheric pressure [10]. 4. The range of plasma, density, n, is very large. At reduced pressure and with f in the few \\{MHz\\} range, n, can be as low as 108 cm?3, [7] while at atmospheric pressure it can exceed 1015 cm?3[10] A related parameter is the degree of ionization ?i, i.e. the plasma density relative to the initial neutral atom concentration. Under ECR conditions, for example with f=2.45 \\{GHz\\} where n can reach up to a few 1012 cm?3, ?i ranges approximately from 0.1–10%, whereas in the above-mentioned atmospheric pressure case, it is smaller than 10?4. The higher n, the higher the rate of plasma processes depending on ions or on neutral particles (e.g., atoms, radicals) when the latter are obtained through electron collisions [8]. Large ?i values favor the existence of

Michel Moisan; Joëlle Margot; Zenon Zakrzewski

1996-01-01T23:59:59.000Z

271

SourceRank: Relevance and Trust Assessment for Deep Web Sources Based on Inter-Source Agreement  

E-Print Network [OSTI]

SourceRank: Relevance and Trust Assessment for Deep Web Sources Based on Inter-Source Agreement Tempe AZ USA 85287 rajub@asu.edu, rao@asu.edu ABSTRACT One immediate challenge in searching the deep web-similarity-based relevance assess- ment. When applied to the deep web these methods have two deficiencies. First

Kambhampati, Subbarao

272

SourceRank: Relevance and Trust Assessment for Deep Web Sources Based on Inter-Source Agreement  

E-Print Network [OSTI]

SourceRank: Relevance and Trust Assessment for Deep Web Sources Based on Inter-Source Agreement. Existing methods have two deficiencies for applying to the open col- lections like the deep web. First query in the deep web, the agreements between theses an- swer sets are likely to be helpful in assessing

Kambhampati, Subbarao

273

Air Permitting for Stationary Sources (New Hampshire)  

Broader source: Energy.gov [DOE]

The permitting system implements the permitting requirements of RSA 125-C and 125-I to regulate the operation and modification of new and existing stationary sources, area sources, and devices to...

274

Total cost model for making sourcing decisions  

E-Print Network [OSTI]

This thesis develops a total cost model based on the work done during a six month internship with ABB. In order to help ABB better focus on low cost country sourcing, a total cost model was developed for sourcing decisions. ...

Morita, Mark, M.B.A. Massachusetts Institute of Technology

2007-01-01T23:59:59.000Z

275

Source prestige and target reactions to threats  

Science Journals Connector (OSTI)

A 3 by 2 design was employed to study the effects of source capability and of punishment magnitude on the compliance of target individuals to contingent threats intermittently sent by a simulated source in...

Thomas V. Bonoma; Barry R. Schlenker; R. Bob Smith…

1970-08-01T23:59:59.000Z

276

Colorado Nonpoint Source Website | Open Energy Information  

Open Energy Info (EERE)

Website Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Colorado Nonpoint Source Website Abstract This is the website of the Colorado Nonpoint Source...

277

A Micromachined Electron Beam Ion Source  

Science Journals Connector (OSTI)

The complete ion source consists of two parts: an RF-plasma electron source, the linked up optic which focuses the electron beam into the second part, the ionization...

G. Petzold; P. Siebert; J. Müller

2000-01-01T23:59:59.000Z

278

MIS-1 electron-beam ion source  

Science Journals Connector (OSTI)

The Institute of Nuclear Physics (INP) has developed and produced electron-beam multiply charged ion sources. These ion sources give the electron beam its high density in the ionization...3 A/cm2.... They produce...

V. G. Abdulmanov; N. S. Dikansky

2010-12-01T23:59:59.000Z

279

Ground Source Heat Pump Demonstration Projects  

Broader source: Energy.gov [DOE]

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

280

Dairy Biomass as a Renewable Fuel Source  

E-Print Network [OSTI]

biomass. This publication explains the properties of dairy manure that could make it an excellent source of fuel....

Mukhtar, Saqib; Goodrich, Barry; Engler, Cady; Capareda, Sergio

2008-03-19T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Ground Source Heat Pump Subprogram Overview  

Broader source: Energy.gov [DOE]

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

282

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.

283

RECENT PROGRESS IN HEAVY ION SOURCES  

E-Print Network [OSTI]

improved Bevalac Fusion reactors Vi Q) U .c. Laser, expl.into thermonuclear fusion reactors. A summary of ion sources

Clark, D.J.

2010-01-01T23:59:59.000Z

284

APS News | Advanced Photon Source  

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

APS News Archives: APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed APS News Kim of ASD Awarded 2014 Wilson Prize for Achievement in Physics of Particle Accelerators Kim of ASD Awarded 2014 Wilson Prize for Achievement in Physics of Particle Accelerators January 7, 2014 Kwang-Je Kim of the Advanced Photon Source has been named the recipient of the 2014 Robert R. Wilson Prize for Achievement in the Physics of Particle Accelerators, Harkay of ASD Elected to Fellowship in the American Physical Society Harkay of ASD Elected to Fellowship in the American Physical Society December 18, 2013 Katherine Harkay of the Accelerator Systems Division has been elected to Fellowship in the American Physical Society for

285

Safety Around Sources of Radiation  

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

Keeping Exposure Low Keeping Exposure Low Working Safely Around Radioactive Contamination Types of Radiation Exposure Managing Radiation Emergencies Procedure Demonstration Is it safe to be around sources? Too much radiation exposure is harmful. The degree of radiation injury depends on the amount of radiation received and the time involved. In general, the higher the amount, the greater the severity of early effects (occurring within a few weeks) and the greater the possibility of late effects such as cancer. The BEIR V (Biological Effects of Ionizing Radiation) Committee of the National Research Council estimates that among 100,000 people exposed to a one-time dose of 10 rem (10,000 mrem) and followed over their life span, about 790 more would die of cancer than the estimated 20,000 cancer deaths that would be expected among a non-exposed group of the same size. NOTE: 10 rem = 100 millisieverts (100 mSv).

286

Detectors (XSD) | Advanced Photon Source  

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

APS Detector Pool (X-ray Science Division) The Detector Pool provides many different types of x-ray detectors to beamline scientists at the Advanced Photon Source. These detectors are made available for short term loans (typically several days to a week or two, but this is flexible). The detector pool also coordinates loans between sectors, helps sectors repair equipment, and coordinates group purchases. Depending on budgets, we purchase new equipment, based largely on suggestions from the beamline scientists. Requests for detectors are submitted by beamline scientists at the sectors on behalf of general users. General Users are free to contact us regarding detector capabilities and other questions. The Detector Pool is staffed during normal working hours,

287

Energy Sources | Department of Energy  

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

Renewable Energy Pilot Program Renewable Energy Pilot Program In June 2010, the Louisiana Public Service Commission (LPSC) unanimously approved a Renewable Energy Pilot Program for the state. The final implementation plan was adopted in November 2010. The goal of the pilot program is to determine whether a renewable portfolio standard is suitable for Louisiana. The pilot program has two major components: the Research Component and the Request for Proposal (RFP) Component. October 16, 2013 Renewable Energy Goal In May 2010, Oklahoma established a renewable energy goal for electric utilities operating in the state. The goal calls for 15% of the total installed generation capacity in Oklahoma to be derived from renewable sources by 2015. There are no interim targets, and the goal does not extend

288

NGLS: Next Generation Light Source  

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

Lab masthead Berkeley Lab A-Z Index Phone Book Careers Search DOE logo Lab masthead Berkeley Lab A-Z Index Phone Book Careers Search DOE logo NGLS logo NGLS Science NGLS Technology Seminars Workshop/Reports Related Links Further Info NGLS Facility Combustion Photosynthesis Photosynthesis Photosynthesis Today is a golden age for light sources. Storage ring-based synchrotrons routinely provide X-ray beams exploited by thousands of scientists annually to answer fundamental questions in diverse fields including human health, energy, and electronics and information processing. MORE > NGLS Science Science section chart NGLS CD-0 Proposal NGLS Technology Technology section chart Seminars Science section chart Workshops Science section chart Last updated 06/21/2013 Top A U.S. Department of Energy National Laboratory Operated by the University

289

Conventional power sources for colliders  

SciTech Connect (OSTI)

At SLAC we are developing high peak-power klystrons to explore the limits of use of conventional power sources in future linear colliders. In an experimental tube we have achieved 150 MW at 1 ..mu..sec pulse width at 2856 MHz. In production tubes for SLAC Linear Collider (SLC) we routinely achieve 67 MW at 3.5 ..mu..sec pulse width and 180 pps. Over 200 of the klystrons are in routine operation in SLC. An experimental klystron at 8.568 GHz is presently under construction with a design objective of 30 MW at 1 ..mu..sec. A program is starting on the relativistic klystron whose performance will be analyzed in the exploration of the limits of klystrons at very short pulse widths.

Allen, M.A.

1987-07-01T23:59:59.000Z

290

Solenoid and monocusp ion source  

DOE Patents [OSTI]

An ion source which generates hydrogen ions having high atomic purity incorporates a solenoidal permanent magnets to increase the electron path length. In a sealed envelope, electrons emitted from a cathode traverse the magnetic field lines of a solenoid and a monocusp magnet between the cathode and a reflector at the monocusp. As electrons collide with gas, the molecular gas forms a plasma. An anode grazes the outer boundary of the plasma. Molecular ions and high energy electrons remain substantially on the cathode side of the cusp, but as the ions and electrons are scattered to the aperture side of the cusp, additional collisions create atomic ions. The increased electron path length allows for smaller diameters and lower operating pressures.

Brainard, John Paul (Albuquerque, NM); Burns, Erskine John Thomas (Albuquerque, NM); Draper, Charles Hadley (Albuquerque, NM)

1997-01-01T23:59:59.000Z

291

Solenoid and monocusp ion source  

DOE Patents [OSTI]

An ion source which generates hydrogen ions having high atomic purity incorporates a solenoidal permanent magnets to increase the electron path length. In a sealed envelope, electrons emitted from a cathode traverse the magnetic field lines of a solenoid and a monocusp magnet between the cathode and a reflector at the monocusp. As electrons collide with gas, the molecular gas forms a plasma. An anode grazes the outer boundary of the plasma. Molecular ions and high energy electrons remain substantially on the cathode side of the cusp, but as the ions and electrons are scattered to the aperture side of the cusp, additional collisions create atomic ions. The increased electron path length allows for smaller diameters and lower operating pressures. 6 figs.

Brainard, J.P.; Burns, E.J.T.; Draper, C.H.

1997-10-07T23:59:59.000Z

292

Energy Sources | Department of Energy  

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

July 20, 2011 July 20, 2011 Today's Forecast: Improved Wind Predictions Accurate weather forecasts are critical for making energy sources -- including wind and solar -- dependable and predictable. July 8, 2011 Energy Matters Mailbag This edition of the mailbag tackles follow-up questions from our Energy Matters discussion on breaking our reliance on foreign oil. June 30, 2011 Energy Matters: Our Energy Independence June 22, 2011 Distributed Energy Distributed energy consists of a range of smaller-scale and modular devices designed to provide electricity, and sometimes also thermal energy, in locations close to consumers. They include fossil and renewable energy technologies (e.g., photovoltaic arrays, wind turbines, microturbines, reciprocating engines, fuel cells, combustion turbines, and steam

293

Issues, Challenges, and Opportunities for Open Source  

E-Print Network [OSTI]

;2 Background · What is Free/Open Source Software Development? · FOSSD project characteristics and practices in "freedom" or liberty) vs. open source ­ Freedom to access, browse/view, study, modify and redistribute;4 Collaborative OSS tools #12;5 SourceForge Topic Map #12;6 FOSSD Project Characteristics · Operational code early

Scacchi, Walt

294

Josephson device with a matched rf source  

SciTech Connect (OSTI)

Analog simulation of a resistance-shunted ac Josephson junction coupled to an rf source with matching impedance reveals (1) added structure in the device's V-I curve even when the source is quiescent and (2) rf-induced steps with peak amplitudes between those produced by voltage and current rf sources. Both results are consistent with experimental data.

Longacre, A. Jr.

1980-03-01T23:59:59.000Z

295

Memorandum, Reporting of Radiological Sealed Sources Transactions  

Broader source: Energy.gov [DOE]

The requirements for reporting transactions involving radiological sealed sources are identified in Department of Energy (DOE) Notice (N) 234.1, Reporting of Radioactive Sealed Sources. The data reported in accordance with DOE N 234.1 are maintained in the DOE Radiological Source Registry and Tracking (RSRT) database by the Office of Information Management, within the Office of Environment, Health, Safety and Security.

296

Spallation Neutron Sources Around the World  

E-Print Network [OSTI]

Spallation Neutron Sources Around the World Bernie Riemer Thanks to others for the many shamelessly Laboratory #12;2 Managed by UT-Battelle for the U.S. Department of Energy Spallation Neutron Source Facilities Spallation Neutron Source Facilities Serve Neutron Science Programs · Neutron beams to suites

McDonald, Kirk

297

Ion source based on the cathodic arc  

DOE Patents [OSTI]

A cylindrically symmetric arc source to produce a ring of ions which leave the surface of the arc target radially and are reflected by electrostatic fields present in the source to a point of use, such as a part to be coated, is described. An array of electrically isolated rings positioned in the source serves the dual purpose of minimizing bouncing of macroparticles and providing electrical insulation to maximize the electric field gradients within the source. The source also includes a series of baffles which function as a filtering or trapping mechanism for any macroparticles. 3 figures.

Sanders, D.M.; Falabella, S.

1994-02-01T23:59:59.000Z

298

Ion source based on the cathodic arc  

DOE Patents [OSTI]

A cylindrically symmetric arc source to produce a ring of ions which leave the surface of the arc target radially and are reflected by electrostatic fields present in the source to a point of use, such as a part to be coated. An array of electrically isolated rings positioned in the source serves the dual purpose of minimizing bouncing of macroparticles and providing electrical insulation to maximize the electric field gradients within the source. The source also includes a series of baffles which function as a filtering or trapping mechanism for any macroparticles.

Sanders, David M. (Livermore, CA); Falabella, Steven (Livermore, CA)

1994-01-01T23:59:59.000Z

299

International workshop on cold neutron sources  

SciTech Connect (OSTI)

The first meeting devoted to cold neutron sources was held at the Los Alamos National Laboratory on March 5--8, 1990. Cosponsored by Los Alamos and Oak Ridge National Laboratories, the meeting was organized as an International Workshop on Cold Neutron Sources and brought together experts in the field of cold-neutron-source design for reactors and spallation sources. Eighty-four people from seven countries attended. Because the meeting was the first of its kind in over forty years, much time was spent acquainting participants with past and planned activities at reactor and spallation facilities worldwide. As a result, the meeting had more of a conference flavor than one of a workshop. The general topics covered at the workshop included: Criteria for cold source design; neutronic predictions and performance; energy deposition and removal; engineering design, fabrication, and operation; material properties; radiation damage; instrumentation; safety; existing cold sources; and future cold sources.

Russell, G.J.; West, C.D. (comps.) (Los Alamos National Lab., NM (United States)) [comps.; Los Alamos National Lab., NM (United States)

1991-08-01T23:59:59.000Z

300

An Empirical Study of Open-Source and Closed-Source Software Products  

E-Print Network [OSTI]

by the study of Mockus et al. [7]. System growth is estimated and compared by using the metric of percentageAn Empirical Study of Open-Source and Closed-Source Software Products James W. Paulson, Member Abstract--This paper describes an empirical study of open-source and closed-source software projects

Eberlein, Armin

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Humboldtian Science, Creole Meteorology, and the Discovery of Human-Caused Climate Change in Northern South America  

E-Print Network [OSTI]

The belief that human land use is capable of causing large-scale climatic change lies at the root of modern conservation thought and policy. The origins and popularization of this belief were deeply politicized. Alexander ...

Cushman, Gregory T.

2011-01-01T23:59:59.000Z

302

Manhattan Project: A Note on Sources  

Office of Scientific and Technical Information (OSTI)

A NOTE ON SOURCES A NOTE ON SOURCES Resources > Note on Sources The text for this web site is a combination of original material and adaptations from previous publications of the Department of Energy (including contractors), its predecessor agencies (primarily the Atomic Energy Commission and the Manhattan Engineer District), and other government agencies. Adaptations run the gamut from summaries to close paraphrases to text being taken directly. This material was gathered and adapted for use by the DOE's Office of History and Heritage Resources. For detailed notes on what sources were used for any particular page, see the footnote at the bottom of the page or its entry in Sources and Notes. For a discussion of the best general sources on the Manhattan Project, see the Suggested Readings.

303

Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

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

304

Ground Source Heat Pumps | Open Energy Information  

Open Energy Info (EERE)

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

305

Spent Sealed Sources Management in Switzerland - 12011  

SciTech Connect (OSTI)

Information is provided about the international recommendations for the safe management of disused and spent sealed radioactive sources wherein the return to the supplier or manufacturer is encouraged for large radioactive sources. The legal situation in Switzerland is described mentioning the demand of minimization of radioactive waste as well as the situation with respect to the interim storage facility at the Paul Scherrer Institute (PSI). Based on this information and on the market situation with a shortage of some medical radionuclides the management of spent sealed sources is provided. The sources are sorted according to their activity in relation to the nuclide-specific A2-value and either recycled as in the case of high active sources or conditioned as in the case for sources with lower activity. The results are presented as comparison between recycled and conditioned activity for three selected nuclides, i.e. Cs-137, Co-60 and Am-241. (author)

Beer, H.F. [Paul Scherrer Institute, CH-5232 Villigen (Switzerland)

2012-07-01T23:59:59.000Z

306

HTGR Mechanistic Source Terms White Paper  

SciTech Connect (OSTI)

The primary purposes of this white paper are: (1) to describe the proposed approach for developing event specific mechanistic source terms for HTGR design and licensing, (2) to describe the technology development programs required to validate the design methods used to predict these mechanistic source terms and (3) to obtain agreement from the NRC that, subject to appropriate validation through the technology development program, the approach for developing event specific mechanistic source terms is acceptable

Wayne Moe

2010-07-01T23:59:59.000Z

307

Advanced Neutron Source (ANS) Project progress report  

SciTech Connect (OSTI)

This report discusses the following topics on the advanced neutron source: quality assurance (QA) program; reactor core development; fuel element specification; corrosion loop tests and analyses; thermal-hydraulic loop tests; reactor control concepts; critical and subcritical experiments; material data, structural tests, and analysis; cold source development; beam tube, guide, and instrument development; hot source development; neutron transport and shielding; I C research and development; facility concepts; design; and safety.

McBee, M.R.; Chance, C.M. (eds.) (Oak Ridge National Lab., TN (USA)); Selby, D.L.; Harrington, R.M.; Peretz, F.J. (Oak Ridge National Lab., TN (USA))

1990-04-01T23:59:59.000Z

308

The input power of distributed sources  

Science Journals Connector (OSTI)

An alternative to the conventional method of calculation of net power radiated by flux integration is presented. This method allows power radiated by distributed sources to be calculated by an integral only over the source region. Furthermore the method is applicable to calculation of radiation from distributed sources in flow. Examples of power radiation for the geometry of the finite cylinder are given for both stationary and moving media. Analytic results are presented for the long wavelength approximation.

Marian Smith

1988-01-01T23:59:59.000Z

309

Glauber coherence of single-electron sources  

Science Journals Connector (OSTI)

Recently demonstrated solid-state single-electron sources generate different quantum states depending on their operation condition. For adiabatic and nonadiabatic sources, we determine the Glauber correlation function in terms of the Floquet scattering matrix of the source. The correlation function provides full information on the shape of the state and on its time-dependent amplitude and phase. The coherence properties of single-electron states are therefore essential for the production of quantum multiparticle states.

G. Haack; M. Moskalets; M. Büttiker

2013-05-17T23:59:59.000Z

310

Protected Water Sources (Iowa) | Department of Energy  

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

Protected Water Sources (Iowa) Protected Water Sources (Iowa) Protected Water Sources (Iowa) < Back Eligibility Utility Fed. Government Commercial Agricultural Investor-Owned Utility State/Provincial Govt Industrial Construction Municipal/Public Utility Local Government Residential Installer/Contractor Rural Electric Cooperative Tribal Government Low-Income Residential Schools Retail Supplier Institutional Multi-Family Residential Systems Integrator Fuel Distributor Nonprofit General Public/Consumer Transportation Savings Category Alternative Fuel Vehicles Hydrogen & Fuel Cells Buying & Making Electricity Water Home Weatherization Solar Wind Program Info State Iowa Program Type Environmental Regulations This chapter designates protected water sources, which are subject to additional special conditions regarding water use. Permit applications for

311

Sources Sought | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

Sources Sought | National Nuclear Security Administration Sources Sought | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog The National Nuclear Security Administration Sources Sought Home > About Us > Our Operations > Acquisition and Project Management > Major Contract Solicitations > Environmental Program Services Contract > Sources Sought

312

BrightSource Energy | Open Energy Information  

Open Energy Info (EERE)

search Name: BrightSource Energy Place: Oakland, California Zip: 94612 Sector: Solar Product: California-based company that develops, builds, owns, and operates large...

313

Photon Statistics of Semiconductor Light Sources.  

E-Print Network [OSTI]

??In recent years, semiconductor light sources have become more and more interesting in terms of applications due to their high efficiency and low cost. Advanced… (more)

Aßmann, Marc

2010-01-01T23:59:59.000Z

314

An overview of LINAC ion sources  

SciTech Connect (OSTI)

This paper discusses ion sources used in high-duty-factor proton and H{sup -} Linacs as well as in accelerators utilizing multi-charged heavy ions, mostly for nuclear physics applications. The included types are Electron Cyclotron Resonance (ECR) sources as well as filament and rf driven multicusp sources. The paper does not strive to attain encyclopedic character but rather to highlight major lines of development, peak performance parameters and type-specific limitations and problems of these sources. The main technical aspects being discussed are particle feed, plasma generation and ion production by discharges, and plasma confinement.

Keller, Roderich [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

315

Building the World's Most Advanced Light Source  

SciTech Connect (OSTI)

View this time-lapse video showing construction of the National Synchrotron Light Source II at Brookhaven National Laboratory. Construction is shown from 2009-2012.

None

2012-08-03T23:59:59.000Z

316

Atmospheric Pressure Discharges: Traveling Wave Plasma Sources  

Science Journals Connector (OSTI)

Microwave sustained, atmospheric pressure plasmas are finding an increasing number of applications ... interest in the developing and investigating of appropriate plasma sources [1, 2].

Z. Zakrzewski; M. Moisan

1999-01-01T23:59:59.000Z

317

X-ray sources in globular clusters  

E-Print Network [OSTI]

The twelve bright (Lx>10(36) erg/s) X-ray sources in the globular clusters have lower luminosities than the brightest sources in the bulge of our galaxy. The dim (Lx<10(35) erg/s) X-ray sources in globular clusters reach higher luminosities than the cataclysmic variables in the disk of our galaxy. The first difference is a statistical fluke, as comparison with M31 indicates. The second difference is explained because the brightest of the dim sources are not cataclysmic variables, but soft X-ray transients in quiescence. This article describes the BeppoSAX, ROSAT and first Chandra observations leading to these conclusions.

Frank Verbunt

2001-11-22T23:59:59.000Z

318

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",25548,15 "..Electric Utilities",16661,18 "..IPP & CHP",8887,13 "Net Generation (megawatthours)",103407706,15...

319

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",15404,29 "..Electric Utilities",12691,21 "..IPP & CHP",2713,33 "Net Generation (megawatthours)",54584295,28...

320

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",10,51 "Electric Utilities",, "IPP & CHP",10,51 "Net Generation (megawatthours)",71787,51 "Electric...

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",4491,43 "..Electric Utilities",19,49 "..IPP & CHP",4472,22 "Net Generation (megawatthours)",14428596,44...

322

Radiation Sources and Radioactive Materials (Connecticut)  

Broader source: Energy.gov [DOE]

These regulations apply to persons who receive, transfer, possess, manufacture, use, store, handle, transport or dispose of radioactive materials and/or sources of ionizing radiation. Some...

323

Diamondoid Monolayers as Monochromatic Electron Source  

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

Diamondoid Monolayers as Monochromatic Electron Source Print Diamondoids are nanometer-sized molecules that feature diamond-crystal cage structures. Adamantane, the smallest member...

324

X-Ray Laser Sources for Microscopy  

Science Journals Connector (OSTI)

Progress and prospects in soft X-ray laser development at Princeton are presented. A comparison to plasma and synchrotron sources is made with a...

C. H. Skinner; D. E. Kim; A. Wouters; D. Voorhees; S. Suckewer

1988-01-01T23:59:59.000Z

325

LANSCE | International Collaboration on Advanced Neutron Sources...  

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

For Admins nav background ICANS Related Sites: IPNS ICANS Proceedings International Collaboration on Advanced Neutron Sources dotline About ICANS meetings ICANS originated in...

326

Carbothermic reduction with parallel heat sources  

DOE Patents [OSTI]

Disclosed are apparatus and method of carbothermic direct reduction for producing an aluminum alloy from a raw material mix including aluminum oxide, silicon oxide, and carbon wherein parallel heat sources are provided by a combustion heat source and by an electrical heat source at essentially the same position in the reactor, e.g., such as at the same horizontal level in the path of a gravity-fed moving bed in a vertical reactor. The present invention includes providing at least 79% of the heat energy required in the process by the electrical heat source.

Troup, Robert L. (Murrysville, PA); Stevenson, David T. (Washington Township, Washington County, PA)

1984-12-04T23:59:59.000Z

327

EA-164-A Constellation Power Source, Inc | Department of Energy  

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

Power Source, Inc EA-164-A Constellation Power Source, Inc Order authorizing Constellation Power Source, Inc to export electric energy to Canada. EA-164-A...

328

EA-164 Constellation Power Source, Inc | Department of Energy  

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

Constellation Power Source, Inc EA-164 Constellation Power Source, Inc Order authorizing Constellation Power Source, Inc to export electric energy to Canada. EA-164 Constellation...

329

Common Sources of Federal Greenhouse Gas Emissions | Department...  

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

Common Sources of Federal Greenhouse Gas Emissions Common Sources of Federal Greenhouse Gas Emissions Common Sources of Federal Greenhouse Gas Emissions...

330

SciTech Connect: Nuclear Physics: The Ultracold Neutron Source  

Office of Scientific and Technical Information (OSTI)

Nuclear Physics: The Ultracold Neutron Source Citation Details In-Document Search Title: Nuclear Physics: The Ultracold Neutron Source Nuclear Physics: The Ultracold Neutron Source...

331

Property:EnergyAccessPowerSource | Open Energy Information  

Open Energy Info (EERE)

Name EnergyAccessPowerSource Property Type String Description Power Source Retrieved from "http:en.openei.orgwindex.php?titleProperty:EnergyAccessPowerSource&oldid421179...

332

An ideal sealed source life-cycle  

SciTech Connect (OSTI)

In the last 40 years, barriers to compliant and timely disposition of radioactive sealed sources have become apparent. The story starts with the explosive growth of nuclear gauging technologies in the 1960s. Dozens of companies in the US manufactured sources and many more created nuclear solutions to industrial gauging problems. Today they do not yet know how many Cat 1, 2, or 3 sources there are in the US. There are, at minimum, tens of thousands of sources, perhaps hundreds of thousands of sources. Affordable transportation solutions to consolidate all of these sources and disposition pathways for these sources do not exist. The root problem seems to be a lack of necessary regulatory framework that has allowed all of these problems to accumulate with no national plan for solving the problem. In the 1960s, Pu-238 displaced Pu-239 for most neutron and alpha source applications. In the 1970s, the availability of inexpensive Am-241 resulted in a proliferation of low energy gamma sources used in nuclear gauging, well logging, pacemakers, and X-ray fluorescence applications for example. In the 1980s, rapid expansion of worldwide petroleum exploration resulted in the expansion of Am-241 sources into international locations. Improvements of technology and regulation resulted in a change in isotopic distribution as Am-241 made Pu-239 and Pu-238 obsolete. Many early nuclear gauge technologies have been made obsolete as they were replaced by non-nuclear technoogies. With uncertainties in source end of life disposition and increased requirements for sealed source security, nuclear gauging technology is the last choice for modern process engineering gauging solutions. Over the same period, much was learned about licensing LLW disposition facilities as evident by the closure of early disposition facilities like Maxey Flats. The current difficulties in sealed source disposition start with adoption of the NLLW policy act of 1985, which created the state LLW compact system they we have today. This regulation created a new regulatory framework seen as promising at the time. However, now they recognize that, despite the good intentions, the NIJWP/85 has not solved any source disposition problems. The answer to these sealed source disposition problems is to adopt a philosophy to correct these regulatory issues, determine an interim solution, execute that solution until there is a minimal backlog of sources to deal with, and then let the mechanisms they have created solve this problem into the foreseeable future. The primary philosophical tenet of the ideal sealed source life cycle follows. You do not allow the creation (or importation) of any source whose use cannot be justified, which cannot be affordably shipped, or that does not have a well-delinated and affordable disposition pathway. The path forward dictates that we fix the problem by embracing the Ideal Source Life cycle. In figure 1, we can see some of the elements of the ideal source life cycle. The life cycle is broken down into four portions, manufacture, use, consolidation, and disposition. These four arbitrary elements allow them to focus on the ideal life cycle phases that every source should go through between manufacture and final disposition. As we examine the various phases of the sealed source life cycle, they pick specific examples and explore the adoption of the ideal life cycle model.

Tompkins, Joseph Andrew [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

333

Compton Scattering Sources and Applications at LLNL  

SciTech Connect (OSTI)

We report the design and current status of a monoenergetic laser-based Compton scattering 0.5-2.5 MeV {gamma}-ray source. Previous nuclear resonance fluorescence results and future linac and laser developments for the source are presented.

Albert, Felicie; Anderson, S. G.; Anderson, G.; Bayramian, A.; Betts, S. M.; Cross, R. R.; Ebbers, C. A.; Gibson, D. J.; Marsh, R. A.; Messerly, M.; Shverdin, M. Y.; Wu, S. S.; Hartemann, F. V.; Scarpetti, R.; Siders, C. W.; Barty, C. P. J. [Lawrence Livermore National Laboratory, NIF and Photon Science, 7000 East Avenue, Livermore, CA, 94550 (United States)

2010-11-04T23:59:59.000Z

334

Carbon sources utilized by virulent Treponema pallidum.  

Science Journals Connector (OSTI)

...the carbon and energy sources utilized...MATERIALS AND METHODS Bacteria. The...A solution metering pump was operated...assay medium. Verification of treponemes...Materials and Methods for details...and efficient methods for measuring...major carbon and energy sources will...

J C Nichols; J B Baseman

1975-11-01T23:59:59.000Z

335

Multi-Sourced Electricity for Electrolytic Hydrogen  

E-Print Network [OSTI]

$/tonne (the DOE's centralized plant #12;Page 8 Electrolytic Hydrogen · Focus on low-cost electrolysis - 300 US Americas DOE Hydrogen Electrolysis-Utility Integration Workshop Boulder, Colorado 2004 September 22 & 23Multi-Sourced Electricity for Electrolytic Hydrogen Multi-Sourced Electricity for Electrolytic

336

Beam current controller for laser ion source  

DOE Patents [OSTI]

The present invention relates to the design and use of an ion source with a rapid beam current controller for experimental and medicinal purposes. More particularly, the present invention relates to the design and use of a laser ion source with a magnetic field applied to confine a plasma flux caused by laser ablation.

Okamura, Masahiro

2014-10-28T23:59:59.000Z

337

SHIELDING ANALYSIS FOR PORTABLE GAUGING COMBINATION SOURCES  

SciTech Connect (OSTI)

Radioisotopic decay has been used as a source of photons and neutrons for industrial gauging operations since the late 1950s. Early portable moisture/density gauging equipment used Americium (Am)-241/Beryllium (Be)/Cesium (Cs)-137 combination sources to supply the required nuclear energy for gauging. Combination sources typically contained 0.040 Ci of Am-241 and 0.010 Ci of CS-137 in the same source capsule. Most of these sources were manufactured approximately 30 years ago. Collection, transportation, and storage of these sources once removed from their original device represent a shielding problem with distinct gamma and neutron components. The Off-Site Source Recovery (OSR) Project is planning to use a multi-function drum (MFD) for the collection, shipping, and storage of AmBe sources, as well as the eventual waste package for disposal. The MFD is an approved TRU waste container design for DOE TRU waste known as the 12 inch Pipe Component Overpack. As the name indicates, this drum is based on a 12 inch ID stainless steel weldment approximately 25 inch in internal length. The existing drum design allows for addition of shielding within the pipe component up to the 110 kg maximum pay load weight. The 12 inch pipe component is packaged inside a 55-gallon drum, with the balance of the interior space filled with fiberboard dunnage. This packaging geometry is similar to the design of a DOT 6M, Type B shipping container.

J. TOMPKINS; L. LEONARD; ET AL

2000-08-01T23:59:59.000Z

338

Radiological Source Registry and Tracking (RSRT)  

Broader source: Energy.gov [DOE]

Department of Energy (DOE) Notice N 234.1 Reporting of Radioactive Sealed Sources has been superseded by DOE Order O 231.1B Environment, Safety and Health Reporting. O 231.1B identifies the requirements for centralized inventory and transaction reporting for radioactive sealed sources.

339

Fermi Large Area Telescope Third Source Catalog  

E-Print Network [OSTI]

We present the third Fermi Large Area Telescope source catalog (3FGL) of sources in the 100~MeV--300~GeV range. Based on the first four years of science data from the Fermi Gamma-ray Space Telescope mission, it is the deepest yet in this energy range. Relative to the 2FGL catalog, the 3FGL catalog incorporates twice as much data as well as a number of analysis improvements, including improved calibrations at the event reconstruction level, an updated model for Galactic diffuse gamma-ray emission, a refined procedure for source detection, and improved methods for associating LAT sources with potential counterparts at other wavelengths. The 3FGL catalog includes 3033 sources above 4 sigma significance, with source location regions, spectral properties, and monthly light curves for each. Of these, 78 are flagged as potentially being due to imperfections in the model for Galactic diffuse emission. Twenty-five sources are modeled explicitly as spatially extended, and overall 232 sources are considered as identifie...

,

2015-01-01T23:59:59.000Z

340

Audio Source Separation using Sparse Representations  

E-Print Network [OSTI]

Audio Source Separation using Sparse Representations Andrew Nesbit1 , Maria G. Jafari1 , Emmanuel ABSTRACT We address the problem of audio source separation, namely, the recovery of audio signals from related to the windowing methods used in the MPEG audio coding framework. In considering the anechoic

Plumbley, Mark

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Adler's sum rule in source theory  

Science Journals Connector (OSTI)

The neutrino-nucleon structure functions suggested by source theory are used to test Adler's sum rule; the numerical result argues for its correctness. An independent source-theoretic derivation is then produced, with the emphasis transferred from hadronic currents to the vector field of a partially U2-invariant unified theory of electromagnetic and weak interactions.

Julian Schwinger

1977-02-01T23:59:59.000Z

342

NETL: NATCARB - CO2 Stationary Sources  

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

Stationary Sources Stationary Sources NATCARB CO2 Stationary Sources CO2 Stationary Source Emission Estimation Methodology NATCARB Viewer The NATCARB Viewer is available at: http://www.natcarbviewer.com. 2012 Atlas IV DOE's Regional Carbon Sequestration Partnerships (RCSPs) employed carbon dioxide (CO2) emissions estimate methodologies that are based on the most readily available representative data for that particular industry type within the respective partnership area. Carbon dioxide emissions data provided by databases (for example, eGRID, IEA GHG, or NATCARB) were the first choice for all of the RCSPs, both for identifying major CO2 stationary sources and for providing reliable emission estimations. Databases are considered to contain reliable and accurate data obtained

343

Characterizing the source of radon indoors  

SciTech Connect (OSTI)

Average indoor radon concentrations range over more than two orders of magnitude, largely because of variability in the rate at which radon enters from building materials, soil, and water supplies. Determining the indoor source magnitude requires knowledge of the generation of radon in source materials, its movement within materials by diffusion and convection, and the means of its entry into buildings. This paper reviews the state of understanding of indoor radon sources and transport. Our understanding of generation rates in and movement through building materials is relatively complete and indicates that, except for materials with unusually high radionuclide contents, these sources can account for observed indoor radon concentrations only at the low end of the range observed. Our understanding of how radon enters buildings from surrounding soil is poorer, however recent experimental and theoretical studies suggest that soil may be the predominant source in many cases where the indoor radon concentration is high. 73 references, 3 figures, 1 table.

Nero, A.V.; Nazaroff, W.W.

1983-09-01T23:59:59.000Z

344

Calculation of source terms for NUREG-1150  

SciTech Connect (OSTI)

The source terms estimated for NUREG-1150 are generally based on the Source Term Code Package (STCP), but the actual source term calculations used in computing risk are performed by much smaller codes which are specific to each plant. This was done because the method of estimating the uncertainty in risk for NUREG-1150 requires hundreds of source term calculations for each accident sequence. This is clearly impossible with a large, detailed code like the STCP. The small plant-specific codes are based on simple algorithms and utilize adjustable parameters. The values of the parameters appearing in these codes are derived from the available STCP results. To determine the uncertainty in the estimation of the source terms, these parameters were varied as specified by an expert review group. This method was used to account for the uncertainties in the STCP results and the uncertainties in phenomena not considered by the STCP.

Breeding, R.J.; Williams, D.C.; Murfin, W.B.; Amos, C.N.; Helton, J.C.

1987-10-01T23:59:59.000Z

345

Apparatus for safeguarding a radiological source  

DOE Patents [OSTI]

A tamper detector is provided for safeguarding a radiological source that is moved into and out of a storage location through an access porthole for storage and use. The radiological source is presumed to have an associated shipping container approved by the U.S. Nuclear Regulatory Commission for transporting the radiological source. The tamper detector typically includes a network of sealed tubing that spans at least a portion of the access porthole. There is an opening in the network of sealed tubing that is large enough for passage therethrough of the radiological source and small enough to prevent passage therethrough of the associated shipping cask. Generally a gas source connector is provided for establishing a gas pressure in the network of sealed tubing, and a pressure drop sensor is provided for detecting a drop in the gas pressure below a preset value.

Bzorgi, Fariborz M

2014-10-07T23:59:59.000Z

346

Electrospray ion source with reduced analyte electrochemistry  

DOE Patents [OSTI]

An electrospray ion (ESI) source and method capable of ionizing an analyte molecule without oxidizing or reducing the analyte of interest. The ESI source can include an emitter having a liquid conduit, a working electrode having a liquid contacting surface, a spray tip, a secondary working electrode, and a charge storage coating covering partially or fully the liquid contacting surface of the working electrode. The liquid conduit, the working electrode and the secondary working electrode can be in liquid communication. The electrospray ion source can also include a counter electrode proximate to, but separated from, said spray tip. The electrospray ion source can also include a power system for applying a voltage difference between the working electrodes and a counter-electrode. The power system can deliver pulsed voltage changes to the working electrodes during operation of said electrospray ion source to minimize the surface potential of the charge storage coating.

Kertesz, Vilmos; Van Berkel, Gary J

2013-07-30T23:59:59.000Z

347

Comparing and Contrasting Web Services and Open Source  

E-Print Network [OSTI]

Software can either be developed in a way such that the source code is available to others, open source, or such that it is not, closed source. Open source software has a number of architectural advantages over traditionally ...

Katz, Jeremy Lee

2010-01-01T23:59:59.000Z

348

Independent Scientific Review Panel for the Northwest Power & Conservation Council  

E-Print Network [OSTI]

is the source(s) of anthropogenic phosphorous loading to Twin Lakes? · The proposal does not present basic

349

ULTRA-LOW-ENERGY HIGH-CURRENT ION SOURCE  

E-Print Network [OSTI]

ULTRA-LOW-ENERGY HIGH-CURRENT ION SOURCE (ULEHIIS) Materialenergy, high-intensity ion source (ULEHIIS) for materials

Anders, Andre

2010-01-01T23:59:59.000Z

350

Controlled Source Audio MT | Open Energy Information  

Open Energy Info (EERE)

Controlled Source Audio MT Controlled Source Audio MT Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Controlled Source Audio MT Details Activities (5) Areas (5) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Magnetotelluric Techniques Information Provided by Technique Lithology: Rock composition, mineral and clay content Stratigraphic/Structural: Detection of permeable pathways, fracture zones, faults Hydrological: Resistivity influenced by porosity, grain size distribution, permeability, fluid saturation, fluid type and phase state of the pore water Thermal: Resistivity influenced by temperature Cost Information Low-End Estimate (USD): 1,866.44186,644 centUSD

351

Spallation Neutron Source reaches megawatt power  

ScienceCinema (OSTI)

The Department of Energy's Spallation Neutron Source (SNS), already the world's most powerful facility for pulsed neutron scattering science, is now the first pulsed spallation neutron source to break the one-megawatt barrier. "Advances in the materials sciences are fundamental to the development of clean and sustainable energy technologies. In reaching this milestone of operating power, the Spallation Neutron Source is providing scientists with an unmatched resource for unlocking the secrets of materials at the molecular level," said Dr. William F. Brinkman, Director of DOE's Office of Science.

Dr. William F. Brinkman

2010-01-08T23:59:59.000Z

352

The Identification of EGRET Sources with Flat-Spectrum Radio Sources  

E-Print Network [OSTI]

We present a method to assess the reliability of the identification of EGRET sources with extragalactic radio sources. We verify that EGRET is detecting the blazar class of AGN. However, many published identifications are found to be questionable. We provide a table of 42 blazars which we expect to be robust identifications of EGRET sources. This includes one previously unidentified EGRET source, the lensed AGN PKS 1830-210 near the direction of the Galactic center. We provide the best available positions for 16 more radio sources which are also potential identifications for previously unidentified EGRET sources. All high Galactic latitude EGRET sources (b>3 degrees) which demonstrate significant variability can be identified with flat spectrum radio sources. This suggests that EGRET is not detecting any type of AGN other than blazars. This identification method has been used to establish with 99.998% confidence that the peak gamma-ray flux of a blazar is correlated with its average 5 GHz radio flux. An even better correlation is seen between gamma-ray flux and the 2.29 GHz flux density measured with VLBI at the base of the radio jet. Also, using high confidence identifications, we find that the radio sources identified with EGRET sources have larger correlated VLBI flux densities than the parent population of flat radio spectrum sources.

J. R. Mattox; J. Schachter; L. Molnar; R. C. Hartman; A. R. Patnaik

1996-12-18T23:59:59.000Z

353

Anomaly metrics to differentiate threat sources from benign sources in primary vehicle screening.  

SciTech Connect (OSTI)

Discrimination of benign sources from threat sources at Port of Entries (POE) is of a great importance in efficient screening of cargo and vehicles using Radiation Portal Monitors (RPM). Currently RPM's ability to distinguish these radiological sources is seriously hampered by the energy resolution of the deployed RPMs. As naturally occurring radioactive materials (NORM) are ubiquitous in commerce, false alarms are problematic as they require additional resources in secondary inspection in addition to impacts on commerce. To increase the sensitivity of such detection systems without increasing false alarm rates, alarm metrics need to incorporate the ability to distinguish benign and threat sources. Principal component analysis (PCA) and clustering technique were implemented in the present study. Such techniques were investigated for their potential to lower false alarm rates and/or increase sensitivity to weaker threat sources without loss of specificity. Results of the investigation demonstrated improved sensitivity and specificity in discriminating benign sources from threat sources.

Cohen, Israel Dov; Mengesha, Wondwosen

2011-09-01T23:59:59.000Z

354

Property:File/Source | Open Energy Information  

Open Energy Info (EERE)

Source Source Jump to: navigation, search Property Name File/Source Property Type Page Description Entity that originally produced the file. In most cases, this will be an organization. Pages using the property "File/Source" Showing 25 pages using this property. (previous 25) (next 25) A Australia-Solar-Map.png + Australian Government + B BOEMRE OCS.oil.gas.2007-12.map.pdf + Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE) + BOEMRE US.CSB.Map.pdf + Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE) + BOEMRE US.CSB.bathy.map.pdf + Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE) + BOEMRE atlantic.OCS.multiple.use.map.2003.pdf + Bureau of Ocean Energy Management, Regulation and Enforcement (BOEMRE) +

355

Property:HeatSource | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:HeatSource Jump to: navigation, search Property Name HeatSource Property Type String Description A description of the resource heat source in the geothermal area. Describes what heats the geothermal fluid - whether it be a magmatic intrusion, a thin crust which brings the mantle closer to hydrologic systems, or only radiogenic influences (such as at Chena hot springs, Alaska). This is a property of type Page. Subproperties This property has the following 4 subproperties: C Coso Geothermal Area R Raft River Geothermal Area S Salt Wells Geothermal Area Steamboat Springs Geothermal Area Pages using the property "HeatSource" Showing 9 pages using this property. C Chena Geothermal Area + Radiogenic +

356

BrightSource | Open Energy Information  

Open Energy Info (EERE)

BrightSource BrightSource Jump to: navigation, search Logo: BrightSource Name BrightSource Address 1999 Harrison Street Place Oakland, California Zip 94612 Sector Solar Product CSP developer Year founded 1984 Number of employees 51-200 Website http://www.brightsourceenergy. Coordinates 37.8020203652°, -122.270536423° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.8020203652,"lon":-122.270536423,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

357

Advanced Light Source Activity Report 2002  

SciTech Connect (OSTI)

This annual report of the Advanced Light Source details science highlights and facility improvements during the year. It also offers information on events sponsored by the facility, technical specifications, and staff and publication information.

Duque, Theresa; Greiner, Annette; Moxon, Elizabeth; Robinson, Arthur; Tamura, Lori (Editors)

2003-06-12T23:59:59.000Z

358

Ultrafast X-Ray Sources and Science  

Science Journals Connector (OSTI)

X-ray science is entering the ultrafast and ultraintense era - spurred by developments in coherent, short-wavelength sources that range from tabletop to accelerator-based. These...

Young, Linda

359

Compiler Hacking for Source Code Analysis  

Science Journals Connector (OSTI)

Many activities related to software quality assessment and improvement, such as empirical model construction, data flow analysis, testing or reengineering, rely on static source code analysis as the first and ...

G. Antoniol; M. Di Penta; G. Masone; U. Villano

2004-12-01T23:59:59.000Z

360

Designing subwavelength-structured light sources  

E-Print Network [OSTI]

The laser has long been established as the best possible optical source for fundamental studies and applications requiring high field intensity, single mode operation, a high degree of coherence, a narrow linewidth and ...

Chua, Song Liang

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

DSpace: An Open Source Dynamic Digital Repository  

E-Print Network [OSTI]

For the past two years the Massachusetts Institute of Technology (MIT) Libraries and Hewlett-Packard Labs have been collaborating on the development of an open source system called DSpaceâ?¢ that functions as a repository ...

Smith, MacKenzie

362

X-rays: Selling a new source  

Science Journals Connector (OSTI)

... that Europe should spend £55 million on a new, 5 GeV super-bright European Synchroton Radiation Source (ESRS). Last week at Daresbury, UK, it tried to convince ...

Robert Walgate

1980-05-29T23:59:59.000Z

363

National Synchrotron Light Source annual report 1988  

SciTech Connect (OSTI)

This report discusses the experiment done at the National Synchrotron Light Source. Most experiments discussed involves the use of the x-ray beams to study physical properties of solid materials. (LSP)

Hulbert, S.; Lazarz, N.; Williams, G. (eds.)

1988-01-01T23:59:59.000Z

364

Spallation Neutron Source | ORNL Neutron Sciences  

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

Spallation Neutron Source SNS site, Spring 2012 The 80-acre SNS site is located on the east end of the ORNL campus and is about a three-minute drive from her sister neutron...

365

Sample inlet tube for ion source  

DOE Patents [OSTI]

An improved inlet tube is positioned within an aperture through the device to allow the passage of ions from the ion source, through the improved inlet tube, and into the interior of the device. The inlet tube is designed with a larger end and a smaller end wherein the larger end has a larger interior diameter than the interior diameter of the smaller end. The inlet tube is positioned within the aperture such that the larger end is pointed towards the ion source, to receive ions therefrom, and the smaller end is directed towards the interior of the device, to deliver the ions thereto. Preferably, the ion source utilized in the operation of the present invention is a standard electrospray ionization source. Similarly, the present invention finds particular utility in conjunction with analytical devices such as mass spectrometers.

Prior, David [Hermiston, OR; Price, John [Richland, WA; Bruce, Jim [Oceanside, CA

2002-09-24T23:59:59.000Z

366

Enabling Exponential Innovation via Open Source  

E-Print Network [OSTI]

-technical innovations #12;Power law distribution #12;OSSD Projects as innovation engines Social/technical innovations OSSD projects exhibit sustained exponential growth via social and technical innovations ExponentialEnabling Exponential Innovation via Open Source Software Development Walt Scacchi Institute

Scacchi, Walt

367

LBNL SEED: Why Open Source Overview  

Broader source: Energy.gov [DOE]

One page overview produced by Lawrence Berkeley National Lab detailing the strengths and flexibility of the open source data platform used by the Standard Energy Efficiency Data (SEED) platform.

368

Mineral Salt: A Source of Costly Energy?  

Science Journals Connector (OSTI)

...chemically precipitated rocks conversion economics energy sources evaporites pollution...principle, any reversible process of desalination can generate power in re-verse (that...salination). One of the most efficient desalination processes de-veloped is vapor compression...

W. GARY WILLIAMS

1979-01-26T23:59:59.000Z

369

California Nonpoint Source Program Strategy and Implementation...  

Open Energy Info (EERE)

California Nonpoint Source Program Strategy and Implementation Plan, 1998-2013 Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther:...

370

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",2119,48 "Electric Utilities",1946,39 "IPP & CHP",172,50 "Net Generation (megawatthours)",6946419,49 "Electric...

371

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",23485,17 "Electric Utilities",17148,17 "IPP & CHP",6337,17 "Net Generation (megawatthours)",77896588,19 "Electric...

372

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",14321,31 "Electric Utilities",991,42 "IPP & CHP",13330,7 "Net Generation (megawatthours)",36198121,36 "Electric...

373

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",38488,7 "Electric Utilities",29293,3 "IPP & CHP",9195,10 "Net Generation (megawatthours)",122306364,9 "Electric...

374

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",1781,49 "Electric Utilities",8,50 "IPP & CHP",1773,38 "Net Generation (megawatthours)",8309036,48 "Electric...

375

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",32547,9 "Electric Utilities",23615,7 "IPP & CHP",8933,11 "Net Generation (megawatthours)",152878688,6 "Electric...

376

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",39520,6 "Electric Utilities",10739,26 "IPP & CHP",28781,5 "Net Generation (megawatthours)",135768251,7 "Electric...

377

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",10476,34 "Electric Utilities",7807,30 "IPP & CHP",2669,34 "Net Generation (megawatthours)",35173263,39 "Electric...

378

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",59139,3 "Electric Utilities",51373,1 "IPP & CHP",7766,15 "Net Generation (megawatthours)",221096136,3 "Electric...

379

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",71329,2 "Electric Utilities",30294,2 "IPP & CHP",41035,3 "Net Generation (megawatthours)",199518567,4 "Electric...

380

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",3357,46 "Electric Utilities",98,47 "IPP & CHP",3259,29 "Net Generation (megawatthours)",8633694,47 "Electric...

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

"Primary Energy Source","Natural Gas"  

U.S. Energy Information Administration (EIA) Indexed Site

Energy Source","Natural Gas" "Net Summer Capacity (megawatts)",109568,1 "Electric Utilities",28463,4 "IPP & CHP",81106,1 "Net Generation (megawatthours)",429812510,1 "Electric...

382

BUILDING 96 RECOMMENDATION FOR SOURCE AREA REMEDIATION  

E-Print Network [OSTI]

of the 1999 Operable Unit (OU) III Remedial Investigation/Feasibility Study(RI/FS) and was designated as AreaOU III BUILDING 96 RECOMMENDATION FOR SOURCE AREA REMEDIATION FINAL Prepared by: Brookhaven REMEDIATION Executive Summary

383

The prospects for renewable energy sources  

Science Journals Connector (OSTI)

As the reserves of depletable fuels are consumed, their prices will increase, thus making renewable energy sources more cost competitive. SRI has evaluated the potential uses for and costs of renewable energy sou...

Jeffrey G. Witwer

1977-02-01T23:59:59.000Z

384

The Electron Beam Ion Source (EBIS)  

ScienceCinema (OSTI)

Brookhaven National Lab has successfully developed a new pre-injector system, called the Electron Beam Ion Source, for the Relativistic Heavy Ion Collider (RHIC) and NASA Space Radiation Laboratory science programs. The first of several planned improvemen

Brookhaven Lab

2010-01-08T23:59:59.000Z

385

Alternative Energy Sources Inc | Open Energy Information  

Open Energy Info (EERE)

company that constructs, owns and operates fuel grade ethanol plants. References: Alternative Energy Sources Inc1 This article is a stub. You can help OpenEI by expanding...

386

ECR ion source with electron gun  

DOE Patents [OSTI]

An Advanced Electron Cyclotron Resonance ion source having an electron gun for introducing electrons into the plasma chamber of the ion source is described. The ion source has a injection enclosure and a plasma chamber tank. The plasma chamber is defined by a plurality of longitudinal magnets. The electron gun injects electrons axially into the plasma chamber such that ionization within the plasma chamber occurs in the presence of the additional electrons produced by the electron gun. The electron gun has a cathode for emitting electrons therefrom which is heated by current supplied from an AC power supply while bias potential is provided by a bias power supply. A concentric inner conductor and outer conductor carry heating current to a carbon chuck and carbon pusher which hold the cathode in place and also heat the cathode. In the Advanced Electron Cyclotron Resonance ion source, the electron gun replaces the conventional first stage used in prior electron cyclotron resonance ion generators. 5 figures.

Xie, Z.Q.; Lyneis, C.M.

1993-10-26T23:59:59.000Z

387

Supersoft Sources as SN Ia Progenitors  

E-Print Network [OSTI]

of the existence of supersoft X­ray sources. It is argued that SNe Ia are thermonuclear explosions of accreting C is that they represent thermonuclear disruptions of mass accreting white dwarfs (WDs). Thus, the basic ingredient

Greiner, Jochen

388

8, 78057846, 2008 Sources of organic  

E-Print Network [OSTI]

chromatographs. According to PMF, OC concentrations were impacted by four sources: biomass combustion, traffic biomass combustion constituted the largest fraction in OC due to domestic wood combustion for heating

Paris-Sud XI, Université de

389

The Electron Beam Ion Source (EBIS)  

SciTech Connect (OSTI)

Brookhaven National Lab has successfully developed a new pre-injector system, called the Electron Beam Ion Source, for the Relativistic Heavy Ion Collider (RHIC) and NASA Space Radiation Laboratory science programs. The first of several planned improvemen

Brookhaven Lab

2009-06-09T23:59:59.000Z

390

Energy cost and energy sources in karate  

Science Journals Connector (OSTI)

Energy costs and energy sources in karate (wado style) were...2max) 36.8 ml · min?1 · kg?1) performing six katas (formal, organized movement sequences) of increasing duration (from approximately. 10 s to approxim...

M. P. Francescato; T. Talon…

1995-09-01T23:59:59.000Z

391

Audio Data Fuzzy Fusion for Source Localization  

Science Journals Connector (OSTI)

This work addresses the problem of audio source localization in multiple speakers indoor scenarios. Three different direction of arrival (DOA) algorithms are applied to measure the angular position of the prim...

Mario Malcangi

2013-01-01T23:59:59.000Z

392

Cryogenic hydrogen circulation system of neutron source  

SciTech Connect (OSTI)

Cold neutron sources of reactors and spallation neutron sources are classic high flux neutron sources in operation all over the world. Cryogenic fluids such as supercritical or supercooled hydrogen are commonly selected as a moderator to absorb the nuclear heating from proton beams. By comparing supercritical hydrogen circulation systems and supercooled hydrogen circulation systems, the merits and drawbacks in both systems are summarized. When supercritical hydrogen circulates as the moderator, severe pressure fluctuations caused by temperature changes will occur. The pressure control system used to balance the system pressure, which consists of a heater as an active controller for thermal compensation and an accumulator as a passive volume controller, is preliminarily studied. The results may provide guidelines for design and operation of other cryogenic hydrogen system for neutron sources under construction.

Qiu, Y. N. [Institute of Physics and Chemistry, Chinese Academy of Sciences, BJ100190 China and University of Chinese Academy of Sciences, Chinese Academy of Sciences, BJ100049 (China); Hu, Z. J.; Wu, J. H.; Li, Q.; Zhang, Y. [Institute of Physics and Chemistry, Chinese Academy of Sciences, BJ100190 (China); Zhang, P. [School of Energy and Power Engineering, HuaZhong University of Science and Technology, WH430074 (China); Wang, G. P. [Institute of High Energy Physics, Chinese Academy of Sciences, BJ100049 (China)

2014-01-29T23:59:59.000Z

393

ON COMPUTING UPPER LIMITS TO SOURCE INTENSITIES  

SciTech Connect (OSTI)

A common problem in astrophysics is determining how bright a source could be and still not be detected in an observation. Despite the simplicity with which the problem can be stated, the solution involves complicated statistical issues that require careful analysis. In contrast to the more familiar confidence bound, this concept has never been formally analyzed, leading to a great variety of often ad hoc solutions. Here we formulate and describe the problem in a self-consistent manner. Detection significance is usually defined by the acceptable proportion of false positives (background fluctuations that are claimed as detections, or Type I error), and we invoke the complementary concept of false negatives (real sources that go undetected, or Type II error), based on the statistical power of a test, to compute an upper limit to the detectable source intensity. To determine the minimum intensity that a source must have for it to be detected, we first define a detection threshold and then compute the probabilities of detecting sources of various intensities at the given threshold. The intensity that corresponds to the specified Type II error probability defines that minimum intensity and is identified as the upper limit. Thus, an upper limit is a characteristic of the detection procedure rather than the strength of any particular source. It should not be confused with confidence intervals or other estimates of source intensity. This is particularly important given the large number of catalogs that are being generated from increasingly sensitive surveys. We discuss, with examples, the differences between these upper limits and confidence bounds. Both measures are useful quantities that should be reported in order to extract the most science from catalogs, though they answer different statistical questions: an upper bound describes an inference range on the source intensity, while an upper limit calibrates the detection process. We provide a recipe for computing upper limits that applies to all detection algorithms.

Kashyap, Vinay L.; Siemiginowska, Aneta [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Van Dyk, David A.; Xu Jin [Department of Statistics, University of California, Irvine, CA 92697-1250 (United States); Connors, Alanna [Eureka Scientific, 2452 Delmer Street, Suite 100, Oakland, CA 94602-3017 (United States); Freeman, Peter E. [Department of Statistics, Carnegie Mellon University, 5000 Forbes Avenue, Pittsburgh, PA 15213 (United States); Zezas, Andreas, E-mail: vkashyap@cfa.harvard.ed, E-mail: asiemiginowska@cfa.harvard.ed, E-mail: dvd@ics.uci.ed, E-mail: jinx@ics.uci.ed, E-mail: aconnors@eurekabayes.co, E-mail: pfreeman@cmu.ed, E-mail: azezas@cfa.harvard.ed [Physics Department, University of Crete, P.O. Box 2208, GR-710 03, Heraklion, Crete (Greece)

2010-08-10T23:59:59.000Z

394

The Advanced Photon Source main control room  

SciTech Connect (OSTI)

The Advanced Photon Source at Argonne National Laboratory is a third-generation light source built in the 1990s. Like the machine itself, the Main Control Room (MCR) employs design concepts based on today`s requirements. The discussion will center on ideas used in the design of the MCR, the comfort of personnel using the design, and safety concerns integrated into the control room layout.

Pasky, S.

1998-07-01T23:59:59.000Z

395

Fluid driven torsional dipole seismic source  

DOE Patents [OSTI]

A compressible fluid powered oscillating downhole seismic source device capable of periodically generating uncontaminated horizontally-propagated, shear waves is provided. A compressible fluid generated oscillation is created within the device which imparts an oscillation to a housing when the device is installed in a housing such as the cylinder off an existing downhole tool, thereby a torsional seismic source is established. Horizontal waves are transferred to the surrounding bore hole medium through downhole clamping.

Hardee, Harry C. (Albuquerque, NM)

1991-01-01T23:59:59.000Z

396

Neutron sources and transmutation of nuclear waste  

Science Journals Connector (OSTI)

Intense neutron sources with different energy spectra are of interest for a variety of applications. In my presentation, after briefly touching on the situation of radioactive waste in Italy, I will try to give a broad picture of Italian existing or proposed neutron sources based on accelerators, ranging from thermal to fast neutrons. I will also describe a specific project for a low-power ADS, aimed at studying neutron spectra as well as at demonstrating incineration and transmutation of nuclear waste.

M. Ripani

2013-01-01T23:59:59.000Z

397

Bates GaAs polarized electron source  

SciTech Connect (OSTI)

In order to pursue measurements of parity violating effects of the neutral weak current, we have developed a polarized electron source suitable for installation at the MIT-Bates Linear Accelerator. The source is designed to provide a high peak-current pulsed beam that has a approx. 1% duty factor and that is extremely stable under helicity reversal. 34 references, 6 figures, 1 table.

Schaefer, H.R.; Cates, G.; Michaels, R.; Hughes, V.W.. Lubell, M.S.; Souder, P.A.

1983-05-01T23:59:59.000Z

398

Source selection of agricultural journalists in Texas  

E-Print Network [OSTI]

that are more accessible during a typical work day (Tuchman, 1978). The "rule of least effort" guides journalists to choose sources that offer them information subsidies such as news releases or press kits (Gandy, 1982). Using official sources protects... of information to journalists. The PIOs were successful slightly more than haif the time in gaining newspaper publication of the information they provided in news releases and other public relations handouts. Turk found that, although the Department...

Banks, Penelope Jean

2012-06-07T23:59:59.000Z

399

The Biosphere: Anthropogenic Impact Biosphere: World's Ecosystems  

E-Print Network [OSTI]

and Invasive, Exotic Species #12;Addressing Trade-offs Map Domestication Effects onto Holdren's "3 Pillars Conditions: Sustainability Interdependent, Non-trivial; Address at Different Scales Quantify "Condition:" Multi-attribute; Then Integrate Three: "Preference Axioms" #12;Addressing Trade-offs In

Caraco, Thomas

400

Contemporary Anthropogenic Silver Cycle:? A Multilevel Analysis  

Science Journals Connector (OSTI)

In 1991, Baccini and Brunner stated that, with urbanization, the anthroposphere assumes high energy and material fluxes (16). ... Table 2.? Silver Fabrication Demand by End Usea ... In country-level cycles, the waste generation of silver from film and photograph production ranges from 1 to 4 g Ag/(capita·year) using an assumed direct relationship between photographic development and GDP per capita in constant prices, up to 10?000 USD per capita. ...

Jeremiah Johnson; Julie Jirikowic; Marlen Bertram; D. van Beers; R. B. Gordon; Kathryn Henderson; R. J. Klee; Ted Lanzano; R. Lifset; Lucia Oetjen; T. E. Graedel

2005-05-07T23:59:59.000Z

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Anthropogenic transformation of the terrestrial biosphere  

Science Journals Connector (OSTI)

...humans are ecosystem engineers-species like the beaver that alter their environment by mechanical or other...seek out, use and engineer ecosystems in relation...other less-inviting environments [50,63,84...Database of the Global Environment (HYDE)-[13] and...

2011-01-01T23:59:59.000Z

402

Chemical Composition of Anthropogenically Influenced Groundwater  

E-Print Network [OSTI]

;INTRODUCTION Fertilizer production and use, fossil fuel burning, and cultivation of N-fixing crops has doubled and marine waters, where nitrogen is often the primary limiting nutrient (Vitousek and Howarth, 1991 with inorganic nutrients on coastal and marine producers (Ryther and Dunstan. 1971; Fisher et. al. 1992) but less

Vallino, Joseph J.

403

Anthropogenic transformation of the terrestrial biosphere  

Science Journals Connector (OSTI)

...only by proxy [105], they are used here to aid in general assessment of human transformation of ecosystems. Combustion processes often leave clear geological records and are important both ecologically and for indicating different stages of...

2011-01-01T23:59:59.000Z

404

ORIGINAL PAPER Historical anthropogenic disturbances influence patterns  

E-Print Network [OSTI]

.g. trails, old quarries), as well as environmental factors, in explaining the probability of occurrence

Vellend, Mark

405

Chemical Composition and Sources of Coastal Marine Aerosol Particles during the 2008 VOCALS-REx Campaign  

SciTech Connect (OSTI)

The chemical composition of aerosol particles (Dp 1.5 ?m) was measured over the southeast Pacific Ocean during the VAMOS (Variability of the American Monsoon Systems) Ocean-Cloud-Atmosphere-Land Study Regional Experiment (VOCALS-Rex) between 16 October and 15 November 2008 using the US Department of Energy (DOE) G-1 aircraft. The objective of these flights was to gain an understanding of the sources and evolution of these aerosols, and of how they interact with the marine stratus cloud layer that prevails in this region of the globe. Our measurements showed that the marine boundary layer (MBL) aerosol mass was dominated by non-sea-salt SO2?4, followed by Na+, Cl?, Org (total organics), NH+4 , and NO?3 , in decreasing order of importance; CH3SO?3 (MSA), Ca2+, and K+ rarely exceeded their limits of detection. Aerosols were strongly acidic with a NH+4 to SO2?4 equivalents ratio typically < 0.3. Sea-salt aerosol (SSA) particles, represented by NaCl, exhibited Cl? deficits caused by both HNO3 and H2SO4, but for the most part were externally mixed with particles, mainly SO2?4. SSA contributed only a small fraction of the total accumulation mode particle number concentration. It was inferred that all aerosol species (except SSA) were of predominantly continental origin because of their strong land-to-sea concentration gradient. Comparison of relative changes in median values suggests that (1) an oceanic source of NH3 is present between 72° W and 76° W, (2) additional organic aerosols from biomass burns or biogenic precursors were emitted from coastal regions south of 31° S, with possible cloud processing, and (3) free tropospheric (FT) contributions to MBL gas and aerosol concentrations were negligible. The very low levels of CH3SO?3 observed as well as the correlation between SO2?4 and NO?3 (which is thought primarily anthropogenic) suggest a limited contribution of DMS to SO2?4 aerosol production during VOCALS.

Lee, Y.- N.; Springston, S.; Jayne, John T.; Wang, Jian; Hubbe, John M.; Senum, Gunnar I.; Kleinman, Lawrence I.; Daum, Peter H.

2014-05-23T23:59:59.000Z

406

Special Application Thermoelectric Micro Isotope Power Sources  

SciTech Connect (OSTI)

Promising design concepts for milliwatt (mW) size micro isotope power sources (MIPS) are being sought for use in various space and terrestrial applications, including a multitude of future NASA scientific missions and a range of military applications. To date, the radioisotope power sources (RPS) used on various space and terrestrial programs have provided power levels ranging from one-half to several hundred watts. In recent years, the increased use of smaller spacecraft and planned new scientific space missions by NASA, special terrestrial and military applications suggest the need for lower power, including mW level, radioisotope power sources. These power sources have the potential to enable such applications as long-lived meteorological or seismological stations distributed across planetary surfaces, surface probes, deep space micro-spacecraft and sub-satellites, terrestrial sensors, transmitters, and micro-electromechanical systems. The power requirements are in the range of 1 mW to several hundred mW. The primary technical requirements for space applications are long life, high reliability, high specific power, and high power density, and those for some special military uses are very high power density, specific power, reliability, low radiological induced degradation, and very low radiation leakage. Thermoelectric conversion is of particular interest because of its technological maturity and proven reliability. This paper summarizes the thermoelectric, thermal, and radioisotope heat source designs and presents the corresponding performance for a number of mW size thermoelectric micro isotope power sources.

Heshmatpour, Ben; Lieberman, Al; Khayat, Mo; Leanna, Andrew; Dobry, Ted [Teledyne Energy Systems, Incorporated, 10707 Gilroy Road, Hunt Valley, MD 21031 (United States)

2008-01-21T23:59:59.000Z

407

Source Recertification, Refurbishment, and Transfer Logistics  

SciTech Connect (OSTI)

The 2012 Gap Analysis of Department of Energy Radiological Sealed Sources, Standards, and Materials for Safeguards Technology Development [1] report, and the subsequent Reconciliation of Source Needs and Surpluses across the U.S. Department of Energy National Laboratory Complex [2] report, resulted in the identification of 33 requests for nuclear or radiological sealed sources for which there was potentially available, suitable material from within the U.S. Department of Energy (DOE) complex to fill the source need. Available, suitable material was defined by DOE laboratories as material slated for excess, or that required recertification or refurbishment before being used for safeguards technology development. This report begins by outlining the logistical considerations required for the shipment of nuclear and radiological materials between DOE laboratories. Then, because of the limited need for transfer of matching sources, the report also offers considerations for an alternative approach – the shipment of safeguards equipment between DOE laboratories or technology testing centers. Finally, this report addresses repackaging needs for the two source requests for which there was available, suitable material within the DOE complex.

Gastelum, Zoe N.; Duckworth, Leesa L.; Greenfield, Bryce A.; Doll, Stephanie R.

2013-09-01T23:59:59.000Z

408

Advanced Photon Source, Canadian Light Source Strengthen Ties, Expand X-ray  

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

Rose of APS and CNM One of Four DOE Early Career Award Winners Rose of APS and CNM One of Four DOE Early Career Award Winners Scientists Close-In on Artificial Spider Silk Ekiert Earns 2012 APSUO Franklin Award for Studies of Influenza Virus Clever Apes on WBEZ: Breaking the Fossil Record Gerig to Chair Particle Accelerator School Board APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed Advanced Photon Source, Canadian Light Source Strengthen Ties, Expand X-ray Technology and Research JUNE 18, 2012 Bookmark and Share The interiors of the Canadian Light Source (top) and Advanced Photon Source experiment halls. (CLS photo courtesy of Canadian Light Source) Seeking to solve some of today's greatest global problems, scientists using x-ray light source facilities at national research laboratories in

409

EIA - Forecasts and Analysis of Energy Data  

Gasoline and Diesel Fuel Update (EIA)

Energy-Related Carbon Dioxide Emissions Energy-Related Carbon Dioxide Emissions In the coming decades, responses to environmental issues could affect patterns of energy use around the world. Actions to limit greenhouse gas emissions could alter the level and composition of energy-related carbon dioxide emissions by energy source. Figure 67. World Carbon Dioxide Emissions by Region, 2002-2025 (Gigawatts). Need help, contact the National Energy Information Center at 202-586-8800. Figure Data Carbon dioxide is one of the most prevalent greenhouse gases in the atmosphere. Anthropogenic (human-caused) emissions of carbon dioxide result primarily from the combustion of fossil fuels for energy, and as a result world energy use has emerged at the center of the climate change debate. In the International Energy Outlook 2005 (IEO2005) reference case, world

410

International Energy Outlook 2006  

Gasoline and Diesel Fuel Update (EIA)

the coming decades, actions to limit greenhouse gas emissions the coming decades, actions to limit greenhouse gas emissions could affect patterns of energy use around the world and alter the level and composition of energy-related carbon dioxide emissions by energy source. Carbon dioxide is one of the most prevalent greenhouse gases in the atmosphere. Anthropogenic (human- caused) emissions of carbon dioxide result primarily from the combustion of fossil fuels for energy, and as a result world energy use has emerged at the center of the climate change debate. In the IEO2006 reference case, world carbon dioxide emissions increase from 25,028 million metric tons in 2003 to 33,663 million metric tons in 2015 and 43,676 million metric tons in 2030 (Figure 65). 14 The Kyoto Protocol, which requires participating "Annex I" countries to reduce their greenhouse gas emissions collectively to an annual

411

International Energy Outlook - Environmental Issues and World Energy Use  

Gasoline and Diesel Fuel Update (EIA)

Environmental Issues and World Energy Use Environmental Issues and World Energy Use International Energy Outlook 2004 Environmental Issues and World Energy Use In the coming decades, responses to environmental issues could affect patterns of energy use around the world. Actions to limit greenhouse gas emissions could alter the level and composition of energy-related carbon dioxide emissions by energy source. Two major environmental issues, global climate change and local or regional air pollution, could affect energy use throughout the world in the coming decades. Current and future policies and regulations designed to limit energy-related emissions of airborne pollutants, are likely to affect the composition and growth of global energy use. Future policy actions to limit anthropogenic (human-caused) carbon dioxide emissions as a means of reducing the potential impacts of climate change could also have significant energy implications.

412

ATLBS EXTENDED SOURCE SAMPLE: THE EVOLUTION IN RADIO SOURCE MORPHOLOGY WITH FLUX DENSITY  

SciTech Connect (OSTI)

Based on the Australia Telescope Low Brightness Survey (ATLBS) we present a sample of extended radio sources and derive morphological properties of faint radio sources. One hundred nineteen radio galaxies form the ATLBS Extended Source Sample (ATLBS-ESS) consisting of all sources exceeding 30'' in extent and integrated flux densities exceeding 1 mJy. We give structural details along with information on galaxy identifications and source classifications. The ATLBS-ESS, unlike samples with higher flux-density limits, has almost equal fractions of FR-I and FR-II radio galaxies, with a large fraction of the FR-I population exhibiting 3C31-type structures. Significant asymmetry in lobe extents appears to be a common occurrence in the ATLBS-ESS FR-I sources compared with FR-II sources. We present a sample of 22 FR-Is at z > 0.5 with good structural information. The detection of several giant radio sources, with size exceeding 0.7 Mpc, at z > 1 suggests that giant radio sources are not less common at high redshifts. The ESS also includes a sample of 28 restarted radio galaxies. The relative abundance of dying and restarting sources is indicative of a model where radio sources undergo episodic activity in which an active phase is followed by a brief dying phase that terminates with restarting of the central activity; in any massive elliptical a few such activity cycles wherein adjacent events blend may constitute the lifetime of a radio source and such bursts of blended activity cycles may be repeated over the age of the host. The ATLBS-ESS includes a 2 Mpc giant radio galaxy with the lowest surface brightness lobes known to date.

Saripalli, L.; Subrahmanyan, R.; Thorat, K.; Ekers, R. D. [Raman Research Institute, C. V. Raman Avenue, Sadashivanagar, Bangalore 560080 (India); Hunstead, R. W.; Johnston, H. M.; Sadler, E. M., E-mail: lsaripal@rri.res.in [Sydney Institute for Astronomy, School of Physics, University of Sydney, NSW 2006 (Australia)

2012-04-01T23:59:59.000Z

413

Audio Source Separation usingAudio Source Separation usingAudio Source Separation usingAudio Source Separation using Sparse RepresentationsSparse RepresentationsSparse RepresentationsSparse Representations  

E-Print Network [OSTI]

Audio Source Separation usingAudio Source Separation usingAudio Source Separation usingAudio Source the problem of audio source separation, namely, the recovery of audio signals from recordings of mixtures in the MPEG audio coding framework. In considering the anechoic (delays but no echoes) and determined (equal

Paris-Sud XI, Université de

414

Note: Development of ESS Bilbao's proton ion source: Ion Source Hydrogen Positive  

SciTech Connect (OSTI)

The Ion Source Hydrogen positive is a 2.7 GHz off-resonance microwave discharge ion source. It uses four coils to generate an axial magnetic field in the plasma chamber around 0.1 T that exceeds the ECR resonance field. A new magnetic system was designed as a combination of the four coils and soft iron in order to increase the reliability of the source. The description of the simulations of the magnetic field and the comparison with the magnetic measurements are presented. Moreover, results of the initial commissioning of the source for extraction voltage until 50 kV will be reported.

Miracoli, R., E-mail: rmiracoli@essbilbao.org; Feuchtwanger, J.; Arredondo, I.; Belver, D.; Gonzalez, P. J.; Corres, J.; Djekic, S.; Echevarria, P.; Eguiraun, M.; Garmendia, N.; Muguira, L. [ESS-Bilbao, Leioa (Spain)] [ESS-Bilbao, Leioa (Spain)

2014-02-15T23:59:59.000Z

415

Future directions in impulsive sound sources  

Science Journals Connector (OSTI)

While impulsive acoustic sources have long been used by the geophysical community for underwater exploration sonar applications have been relatively uncommon. Recent work in the area of electric discharge devices has led to both a better understanding of the physics of this class of impulsive soundgenerator and to new devices which may in turn lead to an expanded role for such technology in sonar applications—in particular the observation that the electric arc commonly associated with sparker sound sources represents a wasteful and unnecessary complication. Proper electrode design and control of the electric discharge can eliminate the arc leaving only a steam bubble and can thereby enhance the low?frequency performance of such a device. Insight into the performance and potential of such devices is in part a result of improved computer modeling capabilities of the nonlinear processes associated with impulsive devices as well as on the use of high?speed data acquisition in interpreting experimental results. This is especially true for determining the effects of interactions in arrays of bubble sources. Beyond the electric discharge sources understanding of the coupling of energy from the bubble to the sound field suggests improvements for chemically driven sound sources as well. An update of work on these impulsive devices and the modeling efforts that support them is presented. The performance of some recently developed devices and the potential for future development will be discussed.

Edward F. Rynne

1993-01-01T23:59:59.000Z

416

Free and Open Source Software for Development  

E-Print Network [OSTI]

Development organizations and International Non-Governmental Organizations have been emphasizing the high potential of Free and Open Source Software for the Less Developed Countries. Cost reduction, less vendor dependency and increased potential for local capacity development have been their main arguments. In spite of its advantages, Free and Open Source Software is not widely adopted at the African continent. In this book the authors will explore the grounds on with these expectations are based. Where do they come from and is there evidence to support these expectations? Over the past years several projects have been initiated and some good results have been achieved, but at the same time many challenges were encountered. What lessons can be drawn from these experiences and do these experiences contain enough evidence to support the high expectations? Several projects and their achievements will be considered. In the final part of the book the future of Free and Open Source Software for Development will be explored. Special attention is given to the African continent since here challenges are highest. What is the role of Free and open Source Software for Development and how do we need to position and explore the potential? What are the threats? The book aims at professionals that are engaged in the design and implementation of ICT for Development (ICT4D) projects and want to improve their understanding of the role Free and Open Source Software can play.

Victor van Reijswoud; Arjan de Jager

2008-08-27T23:59:59.000Z

417

Supernate source term analysis: Revision 1  

SciTech Connect (OSTI)

The HM Process (modified PUREX) has been used in the H-Canyon since 1959 to recover uranium and byproduct neptunium. The PUREX process has been used in the Separation facilities in F and H-Area. This report analyzes both the inhalation and ingestion radionuclide dose impact of the HM and PUREX process soluble portion of their waste streams. The spent fuel assemblies analyzed are the Mark 16B, Mar 22 for the HM process, and the Mark 31A, Mark 31B for the PUREX process. The results from this analysis are combined with an analysis of the current Safety Analysis Report SAR source term to evaluate source terms for HLW supernate. Analysis of fission yield data and SAR source term values demonstrates that a limited number of radionuclides contribute 1% or more to the total dose and that cesium and plutonium isotopes are the radionuclides with major impact in the supernate source term. This report analyses both volatile and evaporative impact as recommended by DOE guidance. In reality, the only radionuclide volatilized during evaporative conditions is tritium. No evidence of selective volatility occurs during forced evaporation in HLW. The results obtained permit reducing the list of radionuclides to be considered in the development of source terms to support the High Level Waste Safety Analysis Report.

Aponte, C.I.

1994-10-13T23:59:59.000Z

418

Light sources based on semiconductor current filaments  

DOE Patents [OSTI]

The present invention provides a new type of semiconductor light source that can produce a high peak power output and is not injection, e-beam, or optically pumped. The present invention is capable of producing high quality coherent or incoherent optical emission. The present invention is based on current filaments, unlike conventional semiconductor lasers that are based on p-n junctions. The present invention provides a light source formed by an electron-hole plasma inside a current filament. The electron-hole plasma can be several hundred microns in diameter and several centimeters long. A current filament can be initiated optically or with an e-beam, but can be pumped electrically across a large insulating region. A current filament can be produced in high gain photoconductive semiconductor switches. The light source provided by the present invention has a potentially large volume and therefore a potentially large energy per pulse or peak power available from a single (coherent) semiconductor laser. Like other semiconductor lasers, these light sources will emit radiation at the wavelength near the bandgap energy (for GaAs 875 nm or near infra red). Immediate potential applications of the present invention include high energy, short pulse, compact, low cost lasers and other incoherent light sources.

Zutavern, Fred J. (Albuquerque, NM); Loubriel, Guillermo M. (Albuquerque, NM); Buttram, Malcolm T. (Sandia Park, NM); Mar, Alan (Albuquerque, NM); Helgeson, Wesley D. (Albuquerque, NM); O'Malley, Martin W. (Edgewood, NM); Hjalmarson, Harold P. (Albuquerque, NM); Baca, Albert G. (Albuquerque, NM); Chow, Weng W. (Cedar Crest, NM); Vawter, G. Allen (Albuquerque, NM)

2003-01-01T23:59:59.000Z

419

NewPipeline-Robot-Power-Source.doc  

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

Power Sources for Power Sources for Inspection Robots in Natural Gas Transmission Pipelines By Shreekant B. Malvadkar and Edward L. Parsons Office of Systems & Policy Support INTRODUCTION Strategic Center of Natural gas's (SCNG) Natural Gas Infrastructure Reliability Product Team has undertaken the development of a prototype robot that would inspect and possibly repair transmission pipelines. NETL has granted a contract for this purpose to New York Gas Group (NYGAS) and Carnegie Mellon University's (CMU) National Robotics Engineering Consortium (NREC). The purpose of this study is to analyze various onboard power supply options for such a commercially viable robot that can operate in a transmission pipeline for extended period. The primary power sources considered are wind turbines, rechargeable batteries,

420

Other Data Source | Data.gov  

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

Other Data Source Other Data Source Ocean Data Tools Technical Guide Map Gallery Regional Planning Feedback Ocean You are here Data.gov » Communities » Ocean Other Data Sources Explore, discover and access a variety of rich spatial and non-spatial data. This page will be frequently updated and enhanced based on feedback from the forums. When you click on the resources below, you will be leaving the Data.gov website. Showing 1 - 21 of 21 results. Avian Knowledge Network The Avian Knowledge Network (AKN) is an international organization of government and non-government institutions focused on understanding the patterns and dynamics of bird populations across the Western Hemisphere. The goal is to educate the public on the dynamics of bird populations, provide interactive decision-making tools for land managers, make available

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

The Linac Coherent Light Source is  

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

Coherent Light Source is Coherent Light Source is a revolution in x-ray science. Just as the invention of x-ray machines a century ago astonishingly revealed the inside of our bodies and began new sciences, the world's first x-ray laser will open up unprecedented opportunities. Pioneering experiments will advance our understand ing of everything from the hidden physics inside planets, to how proteins function as the engines of life, to building nanotechnology devices for the backbone of future industry and technology. The applications are legion: medicine, electronics, biology, solid-state physics, nanotechnology, energy production, industry and fields that do not yet exist. Linac Coherent Light Source New Tools Create New Science The LCLS is dramatically different from any x-ray

422

APS News 2011 | Advanced Photon Source  

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

Moffat Appointed Senior Advisor for Life Sciences at the APS Moffat Appointed Senior Advisor for Life Sciences at the APS Moffat Appointed Senior Advisor for Life Sciences at the APS November 30, 2011 Prof. Keith Moffat of the University of Chicago has been appointed Senior Advisor for Life Sciences at the APS to provide a stronger linkage between the Advanced Photon Source and the life sciences community. Gluskin of ASD Elected to AAAS Fellowship Gluskin of ASD Elected to AAAS Fellowship December 2, 2011 Efim Gluskin of the Argonne Accelerator Systems Division has been elected to Fellowship in the American Association for the Advancement of Science "for leadership in the development of ultra-bright x-ray sources utilized at third generation synchrotron sources and x-ray lasers." Jacobsen of XSD Elected to American Physical Society Fellowship

423

Table Definitions, Sources, and Explanatory Notes  

Gasoline and Diesel Fuel Update (EIA)

Natural Gas > Natural Gas Information Query System > Definitions, Sources, & Notes Natural Gas > Natural Gas Information Query System > Definitions, Sources, & Notes Definitions, Sources, and Explanatory Notes The EIA-176 form contains responses submitted from an identified universe of pipelines, local distribution companies, and operators of fields, wells or gas processing plants, who distribute gas to end users or transport gas across State borders; or underground natural gas storage operators. Definitions Key Terms Definition Commercial Consumption Gas used by nonmanufacturing establishments or agencies primarily engaged in the sale of goods or services. Included are such establishments as hotels, restaurants, wholesale and retail stores and other service enterprises; gas used by local, State, and Federal agencies engaged in nonmanufacturing activities.

424

SPEAR3 | A Brighter Source at SSRL  

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

Pat Dehmer's Talk: Pat Dehmer's Talk: Almost precisely se ven years ago, the Office of Basic Energy Sciences commissioned the first review of its four light sources. The review was headed by Bob Birgeneau, who was then the Dean of Science at MIT. The committee members were among the most distinguished researchers in the country. However, very deliberately, only a fraction of them knew about the light sources. Some of the others were skeptics. A few were hostile, primari ly because of the large budgets associated with construction and operation of the light sources. We asked this committee ten questions. The first question, the most important question, was: "What has been the scientific impact of synchrotron radiation based research during the past decade, and what is it expected to be during the next decade?"

425

Sources of Gravitational Waves: Theory and Observations  

E-Print Network [OSTI]

Gravitational-wave astronomy will soon become a new tool for observing the Universe. Detecting and interpreting gravitational waves will require deep theoretical insights into astronomical sources. The past three decades have seen remarkable progress in analytical and numerical computations of the source dynamics, development of search algorithms and analysis of data from detectors with unprecedented sensitivity. This Chapter is devoted to examine the advances and future challenges in understanding the dynamics of binary and isolated compact-object systems, expected cosmological sources, their amplitudes and rates, and highlights of results from gravitational-wave observations. All of this is a testament to the readiness of the community to open a new window for observing the cosmos, a century after gravitational waves were first predicted by Albert Einstein.

Buonanno, Alessandra

2014-01-01T23:59:59.000Z

426

Ion sources for ion implantation technology (invited)  

SciTech Connect (OSTI)

Ion sources for ion implantation are introduced. The technique is applied not only to large scale integration (LSI) devices but also to flat panel display. For LSI fabrication, ion source scheduled maintenance cycle is most important. For CMOS image sensor devices, metal contamination at implanted wafer is most important. On the other hand, to fabricate miniaturized devices, cluster ion implantation has been proposed to make shallow PN junction. While for power devices such as silicon carbide, aluminum ion is required. For doping processes of LCD fabrication, a large ion source is required. The extraction area is about 150 cm × 10 cm, and the beam uniformity is important as well as the total target beam current.

Sakai, Shigeki, E-mail: sakai-shigeki@nissin.co.jp; Hamamoto, Nariaki; Inouchi, Yutaka; Umisedo, Sei; Miyamoto, Naoki [Nissin Ion Equipment co., ltd, 575 Kuze-Tonoshiro-cho Minami-ku, Kyoto 601-8205 (Japan)] [Nissin Ion Equipment co., ltd, 575 Kuze-Tonoshiro-cho Minami-ku, Kyoto 601-8205 (Japan)

2014-02-15T23:59:59.000Z

427

Pulsed pyroelectric crystal-powered gamma source  

SciTech Connect (OSTI)

A compact pulsed gamma generator is being developed to replace radiological sources used in commercial, industrial and medical applications. Mono-energetic gammas are produced in the 0.4 - 1.0 MeV energy range using nuclear reactions such as {sup 9}Be(d,n{gamma}){sup 10}B. The gamma generator employs an RF-driven inductively coupled plasma ion source to produce deuterium ion current densities up to 2 mA/mm{sup 2} and ampere-level current pulses can be attained by utilizing an array extraction grid. The extracted deuterium ions are accelerated to approximately 300 keV via a compact stacked pyroelectric crystal system and then bombard the beryllium target to generate gammas. The resulting microsecond pulse of gammas is equivalent to a radiological source with curie-level activity.

Chen, A. X.; Antolak, A. J.; Leung, K.-N.; Raber, T. N.; Morse, D. H. [Sandia National Laboratories, Livermore, CA 94550 (United States)

2013-04-19T23:59:59.000Z

428

Phenomenology with Wilson fermions using smeared sources  

E-Print Network [OSTI]

We investigate the use of two types of non-local (``smeared'') sources for quark propagators in quenched lattice QCD at $\\beta=6.0$ using Wilson fermions at $\\kappa=0.154$ and $0.155$. We present results for the hadron mass spectrum, meson decay constants, quark masses, the chiral condensate and the quark distribution amplitude of the pion. The use of smeared sources leads to a considerable improvement over previous results. We find a disturbing discrepancy between the baryon spectra obtained using Wuppertal and wall sources. We find good signals in the ratio of correlators used to calculate the quark mass and the chiral condensate and show that the extrapolation to the chiral limit is smooth.

D. Daniel; R. Gupta; G. Kilcup; A. Patel; S. Sharpe

1992-04-22T23:59:59.000Z

429

Sources of Gravitational Waves: Theory and Observations  

E-Print Network [OSTI]

Gravitational-wave astronomy will soon become a new tool for observing the Universe. Detecting and interpreting gravitational waves will require deep theoretical insights into astronomical sources. The past three decades have seen remarkable progress in analytical and numerical computations of the source dynamics, development of search algorithms and analysis of data from detectors with unprecedented sensitivity. This Chapter is devoted to examine the advances and future challenges in understanding the dynamics of binary and isolated compact-object systems, expected cosmological sources, their amplitudes and rates, and highlights of results from gravitational-wave observations. All of this is a testament to the readiness of the community to open a new window for observing the cosmos, a century after gravitational waves were first predicted by Albert Einstein.

Alessandra Buonanno; B. S. Sathyaprakash

2014-10-28T23:59:59.000Z

430

Current Status of Pacemaker Power Sources  

Science Journals Connector (OSTI)

After years during which pacers of very similar design and capabilities were provided by a small number of manufacturers, many different lithium, halogen, rechargeable, and nuclear power sources are now available. The variety of chemistries, methods of construction, and sealing techniques used in the batteries of the different manufacturers is almost unlimited. This has made it necessary for physicians who implant and follow pacers to acquire a general knowledge of the field if they are to make an informed choice of pacemaker power source for implantation and if they are to manage recalls with a minimum of patient and physician trauma. More experience is required before it can be definitely determined which of the new pacer power sources will prove superior, but when coupled with well-designed, hermetically sealed pulse generators, all are capable of providing continuous pacing for at least 5 years and the 10-year pacemaker is now a probability.

G. Frank O. Tyers; Robert R. Brownlee

1978-01-01T23:59:59.000Z

431

Power Sources Inc | Open Energy Information  

Open Energy Info (EERE)

Sources Inc Sources Inc Jump to: navigation, search Name Power Sources Inc. Place Charlotte, North Carolina Sector Biomass Product US-based operator and developer of biomass-to-energy power plants. Coordinates 35.2225°, -80.837539° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.2225,"lon":-80.837539,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

432

Science Highlights 2008 | Advanced Photon Source  

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

Finding the Controls of a Go-To Enzyme Finding the Controls of a Go-To Enzyme Finding the Controls of a Go-To Enzyme December 16, 2008 Research at three U.S. Department of Energy x-ray light sources, including the Advanced Photon Source, may provide the key to understanding how to better treat a wide array of disorders brought on by one of the body's workhorse molecular enzymes. Watching Liquids Separate at White Heat Watching Liquids Separate at White Heat October 30, 2008 Using temperatures approaching those found on the surface of the sun and intense x-ray beams from two synchrotron x-ray facilities, including the Advanced Photon Source at Argonne National Laboratory, researchers have observed liquids separating into two different states - one lighter and more perfect than the other - the first time the

433

Present state of the SOURCES computer code  

SciTech Connect (OSTI)

In various stages of development for over two decades, the SOURCES computer code continues to calculate neutron production rates and spectra from four types of problems: homogeneous media, two-region interfaces, three-region interfaces and that of a monoenergetic alpha particle beam incident on a slab of target material. Graduate work at the University of Missouri - Rolla, in addition to user feedback from a tutorial course, provided the impetus for a variety of code improvements. Recently upgraded to version 4B, initial modifications to SOURCES focused on updates to the 'tape5' decay data library. Shortly thereafter, efforts focused on development of a graphical user interface for the code. This paper documents the Los Alamos SOURCES Tape1 Creator and Library Link (LASTCALL) and describes additional library modifications in more detail. Minor improvements and planned enhancements are discussed.

Shores, E. F. (Erik F.)

2002-01-01T23:59:59.000Z

434

Europeans plans their next big source  

SciTech Connect (OSTI)

European neutron-scattering researchers announced the next step in plans to build the world`s most powerful pulsed-neutron source by 2010. A just released three year technical study detailed the technical specifications for the new machine, and the five partner institutions agreed to seek funding for a 3-year research and development phase to prove the concept. This article goes on to discuss the possibilities and the future for the European Spallation Source (ESS) neutron facility, and well as the funding problems.

Hellemans, A.

1997-05-09T23:59:59.000Z

435

Synchronization System for Next Generation Light Sources  

SciTech Connect (OSTI)

An alternative synchronization technique – one that would allow explicit control of the pulse train including its repetition rate and delay is clearly desired. We propose such a scheme. Our method is based on optical interferometry and permits synchronization of the pulse trains generated by two independent mode-locked lasers. As the next generation x-ray sources will be driven by a clock signal derived from a mode-locked optical source, our technique will provide a way to synchronize x-ray probe with the optical pump pulses.

Zavriyev, Anton

2014-03-27T23:59:59.000Z

436

Cationically polymerizable monomers derived from renewable sources  

SciTech Connect (OSTI)

The objectives of this project are to design and synthesize novel monomers which orginate from renewable biological sources and to carry out their rapid, efficient, pollution-free and energy efficient cationic polymerization to useful products under the influence of ultraviolet light or heat. A summary of the results of the past year's research on cationically polymerizable monomers derived from renewable sources is presented. Three major areas of investigation corresponding to the different classes of naturally occurring starting materials were investigated; epoxidized terpenes and natural rubber and vinyl ethers from alcohols and carbohydrates.

Crivello, J.V.

1992-10-01T23:59:59.000Z

437

TR-025 Geomorphology March 2003 Schmidt Creek Sediment Sources  

E-Print Network [OSTI]

TR-025 Geomorphology March 2003 Schmidt Creek Sediment Sources and the Johnstone Strait Killer, Thomas. 2003. Schmidt Creek Sediment Sources and the Johnstone Strait Killer Whale Rubbing Beach. Res.................................................................................................................... 2 3. Sediment Sources - Natural and Logging Related

438

Theory and proposal for a quantum-degenerate electron source  

E-Print Network [OSTI]

for a quantum-degenerate electron source M. Zolotorev, E. D.propose a pulsed electron source capable of a 6D brightnesspropose a pulsed electron source with brightness approaching

Zolotorev, Max; Commins, Eugene D.; Sannibale Fernando

2006-01-01T23:59:59.000Z

439

ELECTRON SUPPRESSION IN A MULTI-CUSP NEGATIVE ION SOURCE  

E-Print Network [OSTI]

very low energy electrons at the source exit (Fig. 2). TheTo suppress the electrons at the source exit in this multi-energy primary electrons into the source plasma. The energy

Ehlers, K.W.

2013-01-01T23:59:59.000Z

440

Compact X-Ray Light Source Workshop | EMSL  

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

Compact X-Ray Light Source Workshop Compact X-Ray Light Source Workshop Teller R, Terminello L, Thevuthasan T, Moncton D. 2012. "Compact X-Ray Light Source Workshop Report."...

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to obtain the most current and comprehensive results.


441

Convergent Bayesian formulations of blind source separation and electromagnetic source estimation  

E-Print Network [OSTI]

We consider two areas of research that have been developing in parallel over the last decade: blind source separation (BSS) and electromagnetic source estimation (ESE). BSS deals with the recovery of source signals when only mixtures of signals can be obtained from an array of detectors and the only prior knowledge consists of some information about the nature of the source signals. On the other hand, ESE utilizes knowledge of the electromagnetic forward problem to assign source signals to their respective generators, while information about the signals themselves is typically ignored. We demonstrate that these two techniques can be derived from the same starting point using the Bayesian formalism. This suggests a means by which new algorithms can be developed that utilize as much relevant information as possible. We also briefly mention some preliminary work that supports the value of integrating information used by these two techniques and review the kinds of information that may be useful in addressing the...

Knuth, Kevin H

2015-01-01T23:59:59.000Z

442

Major Source Permits (District of Columbia) | Department of Energy  

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

Major Source Permits (District of Columbia) Major Source Permits (District of Columbia) Major Source Permits (District of Columbia) < Back Eligibility Utility Commercial Industrial Program Info State District of Columbia Program Type Environmental Regulations Provider District Department of the Environment The District reviews designs for new pollution sources and design modifications for existing sources. Permits are issued to allow sources to emit limited and specified amounts of pollution as allowed by air quality laws and regulations. Major sources include power plants, heating plants, and large printing facilities. Three types of permits are issued: pre-construction review permits; new source review permits; and operating permits. These permits include conditions intended to minimize emissions of

443

Oak Ridge Removes Laboratory's Greatest Source of Groundwater...  

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

Removes Laboratory's Greatest Source of Groundwater Contamination Oak Ridge Removes Laboratory's Greatest Source of Groundwater Contamination May 1, 2012 - 12:00pm Addthis Workers...

444

Ethics - Gifts from Outside Sources | Department of Energy  

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

from Outside Sources Ethics - Gifts from Outside Sources When can I accept a gift? Generally, anything that has monetary value is considered a gift. With some exceptions mentioned...

445

EPA Mobile Source Rule Update | Department of Energy  

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

EPA Mobile Source Rule Update EPA Mobile Source Rule Update 2003 DEER Conference Presentation: U.S. Department of Energy FreedomCAR and Vehicle Technologies Program...

446

Transportation Beamline at the Advanced Photon Source | Argonne...  

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

Transportation Beamline at the Advanced Photon Source Argonne's dedicated transportation research beamline at Argonne's Advanced Photon Source (APS) allows researchers to use the...

447

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...

448

Integration of Novel Flux Coupling Motor and Current Source Inverter...  

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

Current Source Inverters for HEVs and FCVs Vehicle Technologies Office Merit Review 2014: Wireless Charging Integration of Novel Flux Coupling Motor and Current Source Inverter...

449

Sandia National Laboratories: Sandia Releases Open-Source Hydrokinetic...  

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

ateECEnergyComputational Modeling & SimulationSandia Releases Open-Source Hydrokinetic Turbine Design Model, CACTUS Sandia Releases Open-Source Hydrokinetic Turbine Design Model,...

450

Payer source for single, elderly women in nursing homes.  

E-Print Network [OSTI]

?? This study seeks to determine the payer source for single, elderly women in nursing homes. By determining the payer source for single, elderly women,… (more)

Nakagawa, Sage

2013-01-01T23:59:59.000Z

451

Stanford Synchrotron Radiation Light Source (SSRL) | U.S. DOE...  

Office of Science (SC) Website

Syncrotron Light Source (NSLS-II) Stanford Synchrotron Radiation Light Source (SSRL) Neutron Scattering Facilities Nanoscale Science Research Centers (NSRCs) Projects...

452

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Gasoline and Diesel Fuel Update (EIA)

9 Number of Establishments with Capability to Switch Distillate Fuel Oil to Alternative Energy Sources, 2006; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit:...

453

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Gasoline and Diesel Fuel Update (EIA)

3 Number of Establishments with Capability to Switch LPG to Alternative Energy Sources, 2010; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit: Establishment...

454

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

3 Number of Establishments with Capability to Switch Natural Gas to Alternative Energy Sources, 2010; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit:...

455

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Gasoline and Diesel Fuel Update (EIA)

0.5 Number of Establishments with Capability to Switch Residual Fuel Oil to Alternative Energy Sources, 2010; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit:...

456

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Gasoline and Diesel Fuel Update (EIA)

3 Number of Establishments with Capability to Switch LPG to Alternative Energy Sources, 2006; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit: Establishment...

457

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

U.S. Energy Information Administration (EIA) Indexed Site

1 Number of Establishments with Capability to Switch Coal to Alternative Energy Sources, 2006; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit: Establishment...

458

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

3 Number of Establishments with Capability to Switch Natural Gas to Alternative Energy Sources, 2006; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit:...

459

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Gasoline and Diesel Fuel Update (EIA)

5 Number of Establishments with Capability to Switch Residual Fuel Oil to Alternative Energy Sources, 2006; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit:...

460

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Gasoline and Diesel Fuel Update (EIA)

7 Number of Establishments with Capability to Switch Electricity to Alternative Energy Sources, 2010; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit:...

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Gasoline and Diesel Fuel Update (EIA)

1 Number of Establishments with Capability to Switch Coal to Alternative Energy Sources, 2010; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit: Establishment...

462

Best Management Practice #14: Alternative Water Sources | Department...  

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

14: Alternative Water Sources Best Management Practice 14: Alternative Water Sources Many federal facilities may have water uses that can be met with non-potable water from...

463

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

U.S. Energy Information Administration (EIA) Indexed Site

9 Number of Establishments with Capability to Switch Distillate Fuel Oil to Alternative Energy Sources, 2010; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit:...

464

Level: National Data; Row: NAICS Codes; Column: Energy Sources...  

Gasoline and Diesel Fuel Update (EIA)

7 Number of Establishments with Capability to Switch Electricity to Alternative Energy Sources, 2006; Level: National Data; Row: NAICS Codes; Column: Energy Sources; Unit:...

465

Advanced Variable Speed Air-Source Integrated Heat Pump 2013...  

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

Advanced Variable Speed Air-Source Integrated Heat Pump 2013 Peer Review Advanced Variable Speed Air-Source Integrated Heat Pump 2013 Peer Review Emerging Technologies Project for...

466

Colorado Department of Health & Environment Nonpoint Source Webpage...  

Open Energy Info (EERE)

Source Webpage Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Colorado Department of Health & Environment Nonpoint Source Webpage Abstract This...

467

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...

468

Alternative Fuels Data Center: Mobile Source Emissions Reduction  

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

Mobile Source Mobile Source Emissions Reduction Requirements to someone by E-mail Share Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Facebook Tweet about Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Twitter Bookmark Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Google Bookmark Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Delicious Rank Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on Digg Find More places to share Alternative Fuels Data Center: Mobile Source Emissions Reduction Requirements on AddThis.com... More in this section... Federal State Advanced Search All Laws & Incentives Sorted by Type

469

Open Source Software: Management, Diffusion and Competition  

E-Print Network [OSTI]

and competitive environment such as the ICT market. 1 Introduction OSS is an alternative model of software has introduced an innovative model of software development, based on self-organized communitiesOpen Source Software: Management, Diffusion and Competition Spyridoula Lakkaé National

Kouroupetroglou, Georgios

470

Cyclotron-based neutron source for BNCT  

SciTech Connect (OSTI)

Kyoto University Research Reactor Institute (KURRI) and Sumitomo Heavy Industries, Ltd. (SHI) have developed a cyclotron-based neutron source for Boron Neutron Capture Therapy (BNCT). It was installed at KURRI in Osaka prefecture. The neutron source consists of a proton cyclotron named HM-30, a beam transport system and an irradiation and treatment system. In the cyclotron, H- ions are accelerated and extracted as 30 MeV proton beams of 1 mA. The proton beams is transported to the neutron production target made by a beryllium plate. Emitted neutrons are moderated by lead, iron, aluminum and calcium fluoride. The aperture diameter of neutron collimator is in the range from 100 mm to 250 mm. The peak neutron flux in the water phantom is 1.8 Multiplication-Sign 109 neutrons/cm{sup 2}/sec at 20 mm from the surface at 1 mA proton beam. The neutron source have been stably operated for 3 years with 30 kW proton beam. Various pre-clinical tests including animal tests have been done by using the cyclotron-based neutron source with {sup 10}B-p-Borono-phenylalanine. Clinical trials of malignant brain tumors will be started in this year.

Mitsumoto, T.; Yajima, S.; Tsutsui, H.; Ogasawara, T.; Fujita, K. [Sumitomo Heavy Industries, Ltd (Japan); Tanaka, H.; Sakurai, Y.; Maruhashi, A. [Kyoto University Research Reactor Institute (Japan)

2013-04-19T23:59:59.000Z

471

Secondary electron ion source neutron generator  

DOE Patents [OSTI]

A neutron generator employing an electron emitter, an ion source bombarded by the electrons from the electron emitter, a plasma containment zone, and a target situated between the plasma containment zone and the electron emitter. The target contains occluded deuterium, tritium, or a mixture thereof

Brainard, John P. (Albuquerque, NM); McCollister, Daryl R. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

472

Arnold Schwarzenegger DATA SOURCES FOR CLIMATE CHANGE  

E-Print Network [OSTI]

Arnold Schwarzenegger Governor DATA SOURCES FOR CLIMATE CHANGE RESEARCH WITH A COMPUTABLE GENERAL-Holst, University of California, Berkeley PIERPROJECTREPORT June 2007 CEC-500-2006-080 #12;California Climate Change for Climate Change Research with a Computable General Equilibrium (CGE) Model of the California Economy

473

Apparent Double SiO Maser Sources  

Science Journals Connector (OSTI)

......to 3 Jy with four 20-m antennas (Miyoshi 1998, a poster paper at JAS meeting). The double SiO sources found...Research (C) (No. 10640238) of the Ministry of Education, Science, Sports and Culture. One of authors (SD) received......

Shuji Deguchi; Takahiro Fujii; Hideyuki Izumiura; Shigeru Matsumoto; Yoshikazu Nakada; Peter R. Wood; Issei Yamamura

1999-06-01T23:59:59.000Z

474

Extracting scenic routes from VGI data sources  

Science Journals Connector (OSTI)

This paper presents a method to extract traversed scenic routes from Volunteered Geographic Information (VGI) data sources. We used the footprints of images posted on Panoramio and Flickr, as well as websites where users uploaded tracks of traversed ... Keywords: Flickr, VGI, panoramio, scenic routes, trip planning

Majid Alivand; Hartwig Hochmair

2013-11-01T23:59:59.000Z

475

Grant Source From the Office of Grants  

E-Print Network [OSTI]

1 Grant Source From the Office of Grants Truman State University Pickler Memorial Library 204 Kirksville, MO 63501 660.785.7459 http://grants.truman.edu February 2007 If you are one of Truman's Mac able to file gov't grant applications By Peter Cohen Last year it came to light that the Grants

Gering, Jon C.

476

Evaluation of an Automotive Navigation Database Source  

E-Print Network [OSTI]

decision to pursue using Source B HTP data in Europe. In the project, HTPs are considered as a collection of point estimates of speed. The speed sample statistics (mean, standard deviation, and sample size) are used to calculate a probability or quality...

Doughty, John

2013-12-20T23:59:59.000Z

477

Ultrabright Backward-wave Biphoton Source  

E-Print Network [OSTI]

We calculate the properties of a biphoton source based on resonant backward-wave spontaneous parametric down-conversion. We show that the biphotons are generated in a single longitudinal mode having a subnatural linewidth and a Glauber correlation time exceeding 65 ns.

Chih-Sung Chuu; S. E. Harris

2011-05-01T23:59:59.000Z

478

Secondary electron ion source neutron generator  

DOE Patents [OSTI]

A neutron generator employing an electron emitter, an ion source bombarded by the electrons from the electron emitter, a plasma containment zone, and a target situated between the plasma containment zone and the electron emitter is disclosed. The target contains occluded deuterium, tritium, or a mixture thereof. 4 figs.

Brainard, J.P.; McCollister, D.R.

1998-04-28T23:59:59.000Z

479

groundwater nitrogen source identification and remediation  

E-Print Network [OSTI]

producer profits. This will, in turn, benefit water bodies in the area that receive stream baseflow fromgroundwater nitrogen source identification and remediation The Seymour Aquifer is a shallow aquifer water withdraws are used for irrigation while the cities of Vernon, Burk- burnett and Electra and many

480

Source: University of California -San Diego  

E-Print Network [OSTI]

Source: University of California - San Diego Date: January 8, 2007 More on: , , , , , Brain Injury Brain Tumor Heart Disease Nervous System Neuroscience Psychology Research Bottleneck In Blood Supply Makes Brain Vulnerable To Strokes A team of UC San Diego physicists and neuroscientists has discovered

Kleinfeld, David

Note: This page contains sample records for the topic "anthropogenic human-caused sources" 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

A Lumped Model for a Seismic Source  

Science Journals Connector (OSTI)

...research-article A Lumped Model for a Seismic Source M. S. Giammarinaro S. Micciancio...parameters are dimensionless and describe: the seismic wave quality factor of the medium (Q...results are: (i) the system exhibits a seismic or an aseismic steady state solution...

1993-01-01T23:59:59.000Z

482

NRC Construction Light Source Flicker: What We  

E-Print Network [OSTI]

frequency] (CFF) ·Health - World Health Organization (1947): · ...a state of complete physical, mental Handbook: Reference & Application (9th Ed.), 2000, p. 3-20 #12;NRC Construction Flicker Effects 1;NRC Construction Flicker Problem 2 ·Does it matter what light source produces the flicker

California at Davis, University of

483

Self-Sustaining Open Source Software  

E-Print Network [OSTI]

Self-Sustaining Open Source Software Development Peter Gutmann University of Auckland Dot-coms Spare-time project · Sourceforge: Graveyard of abandonware/gedanken projects Self-sustaining = self-sustaining · MySQL, Berkeley DB, OpenBSD C = abandonware, splintered into factions, gedanken

Gutmann, Peter

484

Water Salination: A Source of Energy  

Science Journals Connector (OSTI)

...temperature releases free energy. Salination power...1010 watts. The energy flux available for...osmotic salination converter could possibly operate...efficiency. This energy source is renewable...of tidal, geo-thermal, wind, and hydroelectric...nonequilibrium state of the oceans (2) have been proposed...

Richard S. Norman

1974-10-25T23:59:59.000Z

485

ECR ion source with electron gun  

DOE Patents [OSTI]

An Advanced Electron Cyclotron Resonance ion source (10) having an electron gun (52) for introducing electrons into the plasma chamber (18) of the ion source (10). The ion source (10) has a injection enclosure (12) and a plasma chamber tank (14). The plasma chamber (18) is defined by a plurality of longitudinal magnets (16). The electron gun (52) injects electrons axially into the plasma chamber (18) such that ionization within the plasma chamber (18) occurs in the presence of the additional electrons produced by the electron gun (52). The electron gun (52) has a cathode (116) for emitting electrons therefrom which is heated by current supplied from an AC power supply (96) while bias potential is provided by a bias power supply (118). A concentric inner conductor (60) and Outer conductor (62) carry heating current to a carbon chuck (104) and carbon pusher (114) Which hold the cathode (116) in place and also heat the cathode (16). In the Advanced Electron Cyclotron Resonance ion source (10), the electron gun (52) replaces the conventional first stage used in prior art electron cyclotron resonance ion generators.

Xie, Zu Q. (El Cerrito, CA); Lyneis, Claude M. (Berkeley, CA)

1993-01-01T23:59:59.000Z

486

Revealing Electron Delocalization through the Source Function  

Science Journals Connector (OSTI)

The source function (SF) introduced in late 90s by Bader and Gatti quantifies the influence of each atom in a system in determining the amount of electron density at a given point, regardless of the atom’s remote or close location with respect to the ...

Emanuele Monza; Carlo Gatti; Leonardo Lo Presti; Emanuele Ortoleva

2011-07-15T23:59:59.000Z

487

Absolute Time Radiometric Dating: the source  

E-Print Network [OSTI]

Absolute Time Radiometric Dating: the source of the dates on the Geologic Time Scale #12 as an element changes to another element, e.g. uranium to lead. · The parent element is radioactive · Carbon-14, C14 Nitrogen-14, N14 · Uranium-235, U235 Lead-207, Pb207 · Potassium-40, K40 Argon-40, Ar40

Kammer, Thomas

488

Nanomaterials and nanoparticles: Sources and toxicity  

Science Journals Connector (OSTI)

This review is presented as a common foundation for scientists interested in nanoparticles their origin activity and biological toxicity. It is written with the goal of rationalizing and informing public health concerns related to this sometimes-strange new science of “nano ” while raising awareness of nanomaterials’ toxicity among scientists and manufacturers handling them. We show that humans have always been exposed to tiny particles via dust storms volcanic ash and other natural processes and that our bodily systems are well adapted to protect us from these potentially harmful intruders. The reticuloendothelial system in particular actively neutralizes and eliminates foreign matter in the body including viruses and nonbiological particles. Particles originating from human activities have existed for millennia e.g. smoke from combustion and lint from garments but the recent development of industry and combustion-based engine transportation has profoundly increased anthropogenic particulate pollution. Significantly technological advancement has also changed the character of particulate pollution increasing the proportion of nanometer-sized particles-“nanoparticles”-and expanding the variety of chemical compositions. Recent epidemiological studies have shown a strong correlation between particulate air pollution levels respiratory and cardiovascular diseases various cancers and mortality. Adverse effects of nanoparticles on human health depend on individual factors such as genetics and existing disease as well as exposure and nanoparticle chemistry size shape agglomeration state and electromagnetic properties. Animal and human studies show that inhaled nanoparticles are less efficiently removed than larger particles by the macrophage clearance mechanisms in the lungs causing lung damage and that nanoparticles can translocate through the circulatory lymphatic and nervous systems to many tissues and organs including the brain. The key to understanding the toxicity of nanoparticles is that their minute size smaller than cells and cellular organelles allows them to penetrate these basic biological structures disrupting their normal function. Examples of toxic effects include tissue inflammation and altered cellular redox balance toward oxidation causing abnormal function or cell death. The manipulation of matter at the scale of atoms “nanotechnology ” is creating many new materials with characteristics not always easily predicted from current knowledge. Within the nearly limitless diversity of these materials some happen to be toxic to biological systems others are relatively benign while others confer health benefits. Some of these materials have desirable characteristics for industrial applications as nanostructured materials often exhibit beneficial properties from UV absorbance in sunscreen to oil-less lubrication of motors. A rational science-based approach is needed to minimize harm caused by these materials while supporting continued study and appropriate industrial development. As current knowledge of the toxicology of “bulk” materials may not suffice in reliably predicting toxic forms of nanoparticles ongoing and expanded study of “nanotoxicity” will be necessary. For nanotechnologies with clearly associated health risks intelligent design of materials and devices is needed to derive the benefits of these new technologies while limiting adverse health impacts. Human exposure to toxic nanoparticles can be reduced through identifying creation-exposure pathways of toxins a study that may someday soon unravel the mysteries of diseases such as Parkinson’s and Alzheimer’s. Reduction in fossil fuel combustion would have a large impact on global human exposure to nanoparticles as would limiting deforestation and desertification. While nanotoxicity is a relatively new concept to science this review reveals the result of life’s long history of evolution in the presence of nanoparticles and how the human body in particular has adapted to defend itself against nanoparticulate intruders.

Cristina Buzea; Ivan I. Pacheco; Kevin Robbie

2007-01-01T23:59:59.000Z

489

Dithering Strategies and Point-Source Photometry  

SciTech Connect (OSTI)

The accuracy in the photometry of a point source depends on the point-spread function (PSF), detector pixelization, and observing strategy. The PSF and pixel response describe the spatial blurring of the source, the pixel scale describes the spatial sampling of a single exposure, and the observing strategy determines the set of dithered exposures with pointing offsets from which the source flux is inferred. In a wide-field imaging survey, sources of interest are randomly distributed within the field of view and hence are centered randomly within a pixel. A given hardware configuration and observing strategy therefore have a distribution of photometric uncertainty for sources of fixed flux that fall in the field. In this article we explore the ensemble behavior of photometric and position accuracies for different PSFs, pixel scales, and dithering patterns. We find that the average uncertainty in the flux determination depends slightly on dither strategy, whereas the position determination can be strongly dependent on the dithering. For cases with pixels much larger than the PSF, the uncertainty distributions can be non-Gaussian, with rms values that are particularly sensitive to the dither strategy. We also find that for these configurations with large pixels, pointings dithered by a fractional pixel amount do not always give minimal average uncertainties; this is in contrast to image reconstruction for which fractional dithers are optimal. When fractional pixel dithering is favored, a pointing accuracy of better than {approx}0.15 {approx}0.15 pixel width is required to maintain half the advantage over random dithers.

Samsing, Johan; Kim, Alex G

2011-02-22T23:59:59.000Z

490

Integration of Pipeline Operations Sourced with CO2 Captured at a Coal-fired Power Plant and Injected for Geologic Storage: SECARB Phase III CCS Demonstration  

Science Journals Connector (OSTI)

Abstract This paper presents a case study of the design and operation of a fit-for-purpose pipeline sourced with anthropogenic carbon dioxide (CO2) associated with a large-scale carbon capture and storage (CCS) Research & Demonstration Program located in Alabama, USA. A 10.2 centimeter diameter pipeline stretches approximately 19 kilometers from the outlet of the CO2 capture facility, located at Alabama Power Company's James M. Barry 2,657 - megawatt coal-fired electric generating plant, to the point of injection into a saline reservoir within Citronelle Dome. The CO2 pipeline has a 6.5 meter wide easement that primarily parallels an existing high-voltage electric transmission line in undulating terrain with upland timber, stream crossings, and approximately 61,000 square meters of various wetland types. In addition to wetlands, the route transects protected habitat of the Gopher Tortoise. Construction methods included horizontal drilling under utilities, wetlands, and tortoise habitat and ‘open cutting’ trenching where vegetation is removed and silt/storm-water management structures are employed to limit impacts to water quality and ecosystems. A total of 18 horizontal directional borings, approximately 8 kilometers, were used to avoid sensitive ecosystems, roads, and utilities. The project represents one of the first and the largest fully-integrated pulverized coal-fired CCS demonstration projects in the USA and provides a test bed of the operational reliability and risk management for future pipelines sourced with utility CO2 capture and compression operations sole-sourced to injection operations. An update on status of the project is presented, covering the permitting of the pipeline, risk analysis, design, construction, commissioning, and integration with compression at the capture plant and underground injection at the storage site.

R. Esposito; C. Harvick; R. Shaw; D. Mooneyhan; R. Trautz; G. Hill

2013-01-01T23:59:59.000Z

491

Sulfur pollution suppression of the wetland methane source in the 20th and 21st centuries  

E-Print Network [OSTI]

. Emission of this powerful greenhouse gas from wet- lands is known to depend on climate, with increasing are likely due to factors other than the global warming of wetlands. Atmospheric methane (CH4) is a powerful greenhouse gas (GHG) that is responsible for an estimated 22% of the present anthropogenically enhanced

492

BWR Source Term Generation and Evaluation  

SciTech Connect (OSTI)

This calculation is a revision of a previous calculation (Ref. 7.5) that bears the same title and has the document identifier BBAC00000-01717-0210-00006 REV 01. The purpose of this revision is to remove TBV (to-be-verified) -41 10 associated with the output files of the previous version (Ref. 7.30). The purpose of this and the previous calculation is to generate source terms for a representative boiling water reactor (BWR) spent nuclear fuel (SNF) assembly for the first one million years after the SNF is discharged from the reactors. This calculation includes an examination of several ways to represent BWR assemblies and operating conditions in SAS2H in order to quantify the effects these representations may have on source terms. These source terms provide information characterizing the neutron and gamma spectra in particles per second, the decay heat in watts, and radionuclide inventories in curies. Source terms are generated for a range of burnups and enrichments (see Table 2) that are representative of the waste stream and stainless steel (SS) clad assemblies. During this revision, it was determined that the burnups used for the computer runs of the previous revision were actually about 1.7% less than the stated, or nominal, burnups. See Section 6.6 for a discussion of how to account for this effect before using any source terms from this calculation. The source term due to the activation of corrosion products deposited on the surfaces of the assembly from the coolant is also calculated. The results of this calculation support many areas of the Monitored Geologic Repository (MGR), which include thermal evaluation, radiation dose determination, radiological safety analyses, surface and subsurface facility designs, and total system performance assessment. This includes MGR items classified as Quality Level 1, for example, the Uncanistered Spent Nuclear Fuel Disposal Container (Ref. 7.27, page 7). Therefore, this calculation is subject to the requirements of the Quality Assurance Requirements and Description (Ref. 7.28). The performance of the calculation and development of this document are carried out in accordance with AP-3.124, ''Design Calculation and Analyses'' (Ref. 7.29).

J.C. Ryman

2003-07-31T23:59:59.000Z

493

Laser ion source with solenoid for Brookhaven National Laboratory-electron beam ion source  

SciTech Connect (OSTI)

The electron beam ion source (EBIS) preinjector at Brookhaven National Laboratory (BNL) is a new heavy ion-preinjector for relativistic heavy ion collider (RHIC) and NASA Space Radiation Laboratory (NSRL). Laser ion source (LIS) is a primary ion source provider for the BNL-EBIS. LIS with solenoid at the plasma drift section can realize the low peak current ({approx}100 {mu}A) with high charge ({approx}10 nC) which is the BNL-EBIS requirement. The gap between two solenoids does not cause serious plasma current decay, which helps us to make up the BNL-EBIS beamline.

Kondo, K.; Okamura, M. [Collider-Accelerator Department, Brookhaven National Laboratory, New York (United States); Yamamoto, T. [Cooperative Major in Nuclear Energy, Waseda University, Tokyo (Japan); Sekine, M. [Department of Nuclear Engineering, Tokyo Institute of Technology, Tokyo (Japan)

2012-02-15T23:59:59.000Z

494

Laser ion source with solenoid for Brookhaven National Laboratory-electron beam ion source  

SciTech Connect (OSTI)

The electron beam ion source (EBIS) preinjector at Brookhaven National Laboratory (BNL) is a new heavy ion-preinjector for relativistic heavy ion collider (RHIC) and NASA Space Radiation Laboratory (NSRL). Laser ion source (LIS) is a primary ion source provider for the BNL-EBIS. LIS with solenoid at the plasma drift section can realize the low peak current ({approx}100 {micro}A) with high charge ({approx}10 nC) which is the BNL-EBIS requirement. The gap between two solenoids does not cause serious plasma current decay, which helps us to make up the BNL-EBIS beamline.

Kondo K.; Yamamoto, T.; Sekine, M.; Okamura, M.

2012-02-22T23:59:59.000Z

495

Keynote Address National Seminar on Alternative Energy Sources  

E-Print Network [OSTI]

Keynote Address National Seminar on Alternative Energy Sources Prof. Rangan Banerjee Energy Systems that there is a real need for alternative energy sources. What do we understand by Alternative Energy Sources? In order Consumption 1997-98 Keynote address at Two days National Seminar on Alternative Energy Sources, 27-28 Aug

Banerjee, Rangan

496

Progress with Optically Pumped Sources of Polarized Electrons  

E-Print Network [OSTI]

Progress with Optically Pumped Sources of Polarized Electrons M.A. Rosenberry, H. Batelaan, J. We report our work in developing new "turn-key" sources of polarized electrons. These sources operate], and the chiral structure of molecules [3]. At present the standard source of polarized electrons is a specially

Gay, Timothy J.

497

Science Highlights 2007 | Advanced Photon Source  

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

Hybrid Semiconductors for Hardier Electronics and Optoelectronics? Hybrid Semiconductors for Hardier Electronics and Optoelectronics? Hybrid Semiconductors for Hardier Electronics and Optoelectronics? December 21, 2007 New research at the Advanced Photon Source has shed light on a semiconducting material with zero thermal expansion, and may play a role in the design of future generations of electronics and optoelectronics that can withstand a wide range of temperatures. Unveiling the Molecular Structure of the Target of Many Drugs Unveiling the Molecular Structure of the Target of Many Drugs December 3, 2007 More than 40 years after beta blockers were first used clinically, scientists using a beamline at the Advanced Photon Source finally got a close-up look at the drug's molecular target - the ß2-adrenergic receptor - research that promises to speed the discovery

498

Science Highlights 2011 | Advanced Photon Source  

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

Structural Snapshots of Tankyrase, a Protein Involved in a Rare Genetic Disorder and Potential Cancer Target Structural Snapshots of Tankyrase, a Protein Involved in a Rare Genetic Disorder and Potential Cancer Target Structural Snapshots of Tankyrase, a Protein Involved in a Rare Genetic Disorder and Potential Cancer Target December 15, 2011 A discovery made with the help of x-rays from the Advanced Photon Source at Argonne National Laboratory provides researchers with a greater understanding of the protein Tankyrase, which is linked to the bone development disorder cherubism and involved in a myriad of cellular processes, and may also lead to the development of new designer drugs to treat cancer. The Road to Ultrahigh-Resolution X-ray Spectrometers The Road to Ultrahigh-Resolution X-ray Spectrometers November 22, 2011 Two recent developments at the Advanced Photon Source

499

AFRD - Advanced Light Source Accelerator Physics  

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

ALS Accelerator Physics ALS Accelerator Physics Home Organization Outreach and Diversity News Highlights Safety Links Intramural FPO Accelerator Physics Group This page and the Group's own site emphasize the continuing effort to improve the performance and versatility of the accelerator-related systems of the ALS. If you want to start with a nontechnical explanation of what synchrotron light is, how scientists use it, and how the Advanced Light Source works, try About the ALS. The research performed using beams from the ALS is a vast topic that spans many scientific disciplines; a good overview with in-depth links is available at the ALS Science Briefs page. The ALS is a “” synchrotron light source based on a low-emittance electron storage ring with a nominal energy of 1.9 GeV. Since the machine

500

Conferences and Workshops | Advanced Photon Source  

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

THz Workshop: THz Workshop: Scope Organizing Committee Scientific Program Manuscript Submission Invited Speakers Group Picture Poster (Hi-Res) (Low Res) Frontiers of THz Science Workshop @ SLAC Link to Special Topic on the THz workshop in Review of Scientific Instruments Workshop on Terahertz Sources for Time Resolved Studies of Matter July 30-31, 2012 Argonne National Laboratory, Argonne, IL, USA Participant Group Picture Participants at the THz Workshop Scope Interaction of terahertz field with the superconducting materials Most time resolved studies to date have made use of readily available visible and near-visible pump sources to trigger the events and, thus, were bound to study of only a small subset of phenomenon accessible to photon with an eV energies. In contrast, a few recent experiments have emerged in