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1

Environmental Assessment (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

Nova Scotia Environment conducts environmental assessments on projects and developments to ensure they adhere to the laws and regulations of the province. Developments required to undergo an...

2

Nova Scotia Jobs Fund (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

The Nova Scotia Jobs Fund pursues investment opportunities for assisting communities in transition, supporting industry sectors, offering regional support, assisting small businesses programs, and...

3

Solid Waste Regulations (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

Nova Scotia Environment administers waste management for the province. Regulations include specific rules and standards for landfills, establish a Resource Recovery Fund, and guidelines for...

4

Nova Scotia Business Development Program (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

The Nova Scotia Business Development Program helps small business get started and existing businesses expand. This program encourages business start-ups and provides help through qualified...

5

Renewable Energy Standard (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

On February 1, 2007, Nova Scotia's new Renewable Energy Standards took effect. By 2013, Nova Scotia will generate at least 18.5% of the Province's electricity through renewable energy -- wind,...

6

Scotia Energy Electricity- Net Metering Program (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

Nova Scotia Power Inc. Net Metering allows residential and commercial customers to connect small, renewable energy generating units to the provincial power grid.

7

Capital Investment Incentive (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

The Capital Investment Incentive (CII) is part of the Productivity Investment Program as outlined in the economic growth plan for Nova Scotia, jobsHere.

8

Energy Security in Nova Scotia Larry Hughes  

E-Print Network [OSTI]

to maintain energy security #12;Mr. Harper and his energy superpower · "...an ocean of oil soaked sand liesERG/200706 Energy Security in Nova Scotia Larry Hughes Energy Research Group Electrical to Café Canada, Mahone Bay 30 November 2007 #12;Energy security in Nova Scotia Larry Hughes, PhD Energy

Hughes, Larry

9

Climate Action Plan (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

Nova Scotia's Climate Change Action Plan has two main goals: reducing the province's contribution to climate change by reducing greenhouse gas (GHG) emissions and preparing for changes to the...

10

Qualifying RPS Market States (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

This entry lists the states with RPS policies that accept generation located in Nova Scotia, Canada as eligible sources towards their Renewable Portfolio Standard targets or goals. For specific...

11

Energy Security in Nova Scotia Larry Hughes  

E-Print Network [OSTI]

of energy) PV ­ Photovoltaic (usually solar panels that generate electricity from the sun) RES ­ Renewable ) joules (a unit of energy) HST ­ Harmonized Sales Tax (Nova Scotia's sales tax: 8% provincial plus 6% federal) ha ­ hectare IEA ­ International Energy Agency kWh ­ Kilowatt-hour (a unit of energy) LDV ­ Light

Hughes, Larry

12

area nova scotia: Topics by E-print Network  

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

Renewed Energy Strategy and Climate Change Action Plan Larry Halifax, Nova Scotia, Canada larry.hughes@dal.ca http:lh.ece.dal.caenen 19 December 2007 Hughes, Larry 4 Foreign...

13

Community Feed-in Tariff (Nova Scotia, Canada)  

Broader source: Energy.gov [DOE]

The Community Feed-In Tariff Program (COMFIT) is designed to increase local ownership of small-scale energy projects in Nova Scotia. The program provides an opportunity for community-based power...

14

Nova Scotia Research and Innovation Graduate Scholarships Information Sheet May 2014  

E-Print Network [OSTI]

Scholarships Information Sheet May 2014 3 · Resource Sectors · Social Innovation #12;Nova Scotia Research and Innovation Graduate Scholarships Information Sheet May 2014 1 Selection Volunteerism/community outreach 20% #12;Nova Scotia Research and Innovation Graduate Scholarships Information

15

Nova Scotia: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy ResourcesLoading map...(Utility Company)References ↑Information NotificationNottoway County,Nova

16

Text and slides of presentation originally presented to the Nova Scotia Utility and Review Board regarding the province's Demand Side Management program,19 April 2010.  

E-Print Network [OSTI]

regarding the province's Demand Side Management program,19 April 2010. ERG/201003 Nova Scotia's Demand Side Scotia's Demand Side Management program: Concerns and recommendations1 Larry Hughes, PhD Energy Research restrictions, I will discuss only two of my concerns regarding Nova Scotia's Demand Side Management (DSM

Hughes, Larry

17

CCCG 2014, Halifax, Nova Scotia, August 1113, 2014 An improved method for generating triangle-mesh models of images  

E-Print Network [OSTI]

CCCG 2014, Halifax, Nova Scotia, August 11­13, 2014 An improved method for generating triangle of Victoria, Victoria, BC, Canada, {xiaom,mdadams}@ece.uvic.ca triangulated were chosen. Since

Adams, Michael D.

18

Mineralogical characterization of arsenic in gold mine tailings from three sites in Nova Scotia  

SciTech Connect (OSTI)

Chronic exposure to high concentrations of arsenic (As) in windblown and vehicle-raised dust from tailings sites in Nova Scotia poses a potential health risk to recreational users of these areas and to nearby residents. The exposure may involve inhalation of dust, as well as oral ingestion of particles. It is important to understand the mineralogy and morphology of As-bearing dust particles in order to evaluate the risk posed by near-surface particulates in As-bearing tailings fields, as this will influence the stability and toxicity of As in the wastes. Optical mineralogy, scanning electron microscopy, electron microprobe, X-ray diffraction, synchrotron-based micro-X-ray diffraction ({mu}XRD) and micro-X-ray absorption near edge structure ({mu}XANES), and sequential leach extractions were applied to tailings samples from three sites in eastern Nova Scotia. Arsenic occurs naturally in these gold deposits mainly in arsenopyrite (FeAsS). In the near-surface material of the tailings fields, sulphide minerals have almost completely oxidized to secondary minerals such as scorodite (FeAsO{sub 4}{center_dot}2H{sub 2}O) and Ca-Fe arsenates. Iron oxyhydroxides contain variable amounts of As{sub 2}O{sub 5} from trace to 30 wt.% and CaO up to 8 wt.%. The presence of multiple As-hosting solid phases, including relatively soluble Ca-Fe arsenates and Fe oxyhydroxides with adsorbed As has important implications for human health risk assessment and remediation design.

M Corriveau; H Jamieson; M Parsons; G Hall

2011-12-31T23:59:59.000Z

19

An investigation of cathodoluminescence in albite from the A-type Georgeville granite, Nova Scotia  

SciTech Connect (OSTI)

Cathodoluminescence (CL) reveals red and blue colors within single, non-turbid albite (Ab{sub 98-99}) grains from the Georgeville granite, Nova Scotia. A 720 nm X-ray excited optical luminescence (XEOL) peak characterizes red CL regions, while a 280 nm XEOL feature dominates blue CL regions. Synchrotron X-ray fluorescence results indicate that red CL and the 720 nm XEOL peak intensities relate to total Fe concentrations. The relationship between red CL and Fe content is confirmed by electron microprobe (EMPA) and laser ablation-inductively coupled mass spectrometry (LA-ICP-MS). The XEOL technique is used to exclude the Fe K-edge as the cause of red CL. X-ray absorption spectroscopy results indicate that Fe in both the red and blue CL regions is Fe{sup 3+}, and that red CL activation may relate to the Si-Al order of the feldspar and to the distribution of Fe on tetrahedral sites. The CL textures, combined with EMPA and LA-ICPMS analyses, indicate that blue CL albite (Ab98) regions contain higher concentrations of Ca, Ti, Pb and rare earth elements, and were replaced, in part, by a more Fe-rich, trace element depleted albite (Ab99) which displays red CL. Complex diffraction contrasts and amorphous deposits identified in transmission electron microscope images suggest that aqueous fluids have reacted with both red and blue CL regions. Fluid inclusion homogenization temperatures of up to 430 C provide a lower estimate of the fluid temperature.

Dalby, Kim N.; Anderson, Alan J.; Mariano, Anthony N.; Gordon, Robert A.; Mayanovic, Robert A.; Wirth, Richard (Missouri SU); (SFX); (Simon); (GFZ)

2009-12-15T23:59:59.000Z

20

Petrology, geochemistry, and palynology of Joggins Formation (Westphalian A) coals, Cumberland basin, Nova Scotia  

SciTech Connect (OSTI)

Five Westphalian A coals were collected from the Joggins Formation section exposed along Chignecto Bay at Joggins, Nova Scotia. Several of the coal beds along the bay were mined beginning in the early 17th century. There has been little detailed investigation of the coal beds of this classic section. The lowermost coal, the Upper Coal 29 (Fundy), is a high-vitrinite coal with a spore assemblage dominated by arboreous lycopod spores with tree ferns subdominant. The upper portions of the coal bed have the highest ratio of well-preserved to poorly-preserved telinite of any of the coals investigated. Coal 19 (Forty Brine) has 88% total vitrinite but, unlike the Fundy coal bed, the telinite has a poor preservation ratio and half of the total vitrinite population comprises gelocollinite and vitrodetrinite. The latter coal bed is directly overlain by a basin-wide limestone bed. The Lower Kimberly (Coal 15) shows good preservation of vitrinite with relatively abundant telinite among the total vitrinite. The Upper Kimberly, which underlies the tetrapod-bearing lycopsid trees found by Lyell and Dawson in 1852, exhibits an upward decrease in arboreous lycopod spores and an increase in the tree fern spore Punctatisporites minutus. The megaspore record is similarly dominated by Lagenicularugosa paralycopodites and tree fern spores. Telinite preservation increases upwards in the Upper Kimberly but overall is well below the preservation ratio of the Fundy coal bed. The coals are all high sulfur, up to 13.7% total sulfur for the lower lithotype of the Fundy coal bed. The Kimberly coals are not only high in total and pyritic sulfur, but also have high concentrations of chalcophile elements.

Hower, J.C. [Univ. of Kentucky Center for Applied Energy Research, Lexington, KY (United States); Calder, J.H. [Nova Scotia Dept. of Natural Resources, Halifax (Canada); Cortland, F.E. [Kentucky Geological Survey, Lexington, KY (United States)] [and others

1996-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

NOVA SCOTIA UTILITY AND REVIEW BOARD IN THE MATTER OF: The Public Utilities Act, R.S.N.S. 1989, c.380 as  

E-Print Network [OSTI]

Halifax, Nova Scotia, B3J 2X4, Canada larry.hughes@dal.ca 24 November 2004 Abstract Energy suppliers-subsidization, and does not allow the energy supplier to create price signals. Although other, more progressive billing schemes, such as time-of-usage billing, exist, some energy suppliers and their customers are reluctant

Hughes, Larry

22

Arsenic Mineralogy of Near-surface Tailings and Soils: Influences on Arsenic Mobility and Bioaccessibility in the Nova Scotia Mining Districts  

SciTech Connect (OSTI)

The mineral form, grain size and texture of As-bearing particles are important factors influencing the risk to human health associated with exposure to As-contaminated soils, sediments and mine wastes. Mining of arsenopyrite-bearing gold ores in Nova Scotia in the late 1800s and early 1900s has left a legacy of weathered, As-rich tailings deposits in more than 60 gold districts across the province. Fourteen samples of near-surface tailings and one of soil from several former gold mines frequented by the public were sieved to <150 {mu}m and characterized using conventional mineralogical techniques (XRD, microscopy and EPMA) and synchrotron micro-analysis ({mu}-X-ray diffraction, {mu}-X-ray fluorescence and {mu}-X-ray absorption spectroscopy). This study is part of a broader coordinated effort by a multi-department federal and provincial advisory committee formed to coordinate the study of ecosystem and human health risks associated with historical gold mine sites in Nova Scotia. Our study shows that (i) the mineralogy of As in weathered tailings is highly variable, with aggregates of more than one As-bearing phase common in a given sample, and (ii) major differences in As mineralogy in the tailings are mainly controlled by factors that influence the weathering history (e.g., presence or absence of mill concentrates, degree of water saturation, and abundance of relict carbonate minerals). The variable solubility of these primary and secondary As-bearing minerals influences both the environmental mobility and the bioaccessibility of As in near-surface tailings and soil samples.

Walker, S.; Parsons, M; Jamieson, H; Lanzirotti, A

2009-01-01T23:59:59.000Z

23

Effects of Soil Composition and Mineralogy on the Bioaccessibility of Arsenic from Tailings and Soil in Gold Mine Districts of Nova Scotia  

SciTech Connect (OSTI)

Bioaccessibility tests and mineralogical analyses were performed on arsenic-contaminated tailings and soils from gold mine districts of Nova Scotia, Canada, to examine the links between soil composition, mineralogy, and arsenic bioaccessibility. Arsenic bioaccessibility ranges from 0.1% to 49%. A weak correlation was observed between total and bioaccessible arsenic concentrations, and the arsenic bioaccessibility was not correlated with other elements. Bulk X-ray absorption near-edge structure analysis shows arsenic in these near-surface samples is mainly in the pentavalent form, indicating that most of the arsenopyrite (As{sup 1-}) originally present in the tailings and soils has been oxidized during weathering reactions. Detailed mineralogical analyses of individual samples have identified up to seven arsenic species, the relative proportions of which appear to affect arsenic bioaccessibility. The highest arsenic bioaccessibility (up to 49%) is associated with the presence of calcium-iron arsenate. Samples containing arsenic predominantly as arsenopyrite or scorodite have the lowest bioaccessibility (<1%). Other arsenic species identified (predominantly amorphous iron arsenates and arsenic-bearing iron(oxy)hydroxides) are associated with intermediate bioaccessibility (1 to 10%). The presence of a more soluble arsenic phase, even at low concentrations, results in increased arsenic bioaccessibility from the mixed arsenic phases associated with tailings and mine-impacted soils.

Meunier, Louise; Walker, Stephen R.; Wragg, Joanna; Parsons, Michael B.; Koch, Iris; Jamieson, Heather E.; Reimer, Kenneth J. (Queens); (Brit. Geo.); (Royal); (NRC)

2010-10-20T23:59:59.000Z

24

The alteration of metamict zircon and its role in the remobilization of high-field strength elements in the Georgeville granite, Nova Scotia  

SciTech Connect (OSTI)

The structure and composition of metamict zircon from the Georgeville epizonal A-type granite in the Antigonish Highlands, Nova Scotia, were determined using EMPA, SXRF, LA-ICP-MS, Raman microspectroscopy and TEM data. Individual crystals of zircon are variably altered and consist of four domains distinguished on the basis of texture and composition. Domain A consists of zircon and zirconium oxide nanocrystals in an amorphous matrix and is trace-element-enriched. Replacement of domain A in proximity to microfractures produced a porous and relatively trace-element-poor zircon (domain B) with disseminated Th-U- and Y-enriched inclusions (domain C). Domain D consists of amorphous zirconium silicate that is depleted in trace elements but enriched in Hf. It is found in fractures, together with minor amounts of thorite and thorianite. It Domain D is anhydrous and free of inclusions and pore spaces and has a composition similar to highly crystalline zircon. Micro- and nanoscale element-distribution maps indicate that high-field-strength trace elements in metamict zircon were redistributed during alteration by diffusion and by dissolution-and-reprecipitation processes near microfractures and other fluid channelways. The anomalous chondrite-normalized rare-earth-element patterns and Nd isotopic signature of the granite is attributed largely to the preferential transport and deposition of rare-earth elements during subsolidus re-equilibration of metamict zircon. Hydrothermally deposited zirconium silicate (domain D) has a composition similar to that of highly crystalline Hf-rich zircon but is completely amorphous. This observation emphasizes the need to verify the structural integrity and aqueous durability of hydrothermally deposited zircon before it is used to reconstruct hydrothermal processes.

Anderson, A.J.; Wirth, R.; Thomas, R. (SFX); (GFZ)

2008-10-02T23:59:59.000Z

25

Radiological Scoping Survey of the Scotia Depot, Scotia, NY  

SciTech Connect (OSTI)

The objectives of the radiological scoping survey were to collect adequate field data for use in evaluating the radiological condition of Scotia Depot land areas, warehouses, and support buildings.

Bailey, E. N.

2008-02-25T23:59:59.000Z

26

Application to Export Electric Energy OE Docket No. EA-355 Scotia...  

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

Scotia Capital Energyto export electric energy to Canada Application to Export Electric Energy OE Docket No EA-355 Scotia Capital Energy More Documents & Publications EA-355 Scotia...

27

24 November 2004 Nova Scotia Utility and Review Board  

E-Print Network [OSTI]

) This letter and its accompanying report discusses NSPI's proposed Domestic Service Tariff price increase and Review Board (UARB) for increases in all its rate classes. In the Domestic Service Tariff, NSPI has Tariff NSPI's Domestic Service Tariff applies to about 418,900 residential customers. An analysis of NSPI

Hughes, Larry

28

Nova Scotia Topographic Database 1:10000 Received: April 2009  

E-Print Network [OSTI]

include pipelines, and transmission lines. Utilities_Point UT_POINT A point dataset showing features related to utilities. Some examples include tanks, towers, and substations. Utilities_Poly UT_POLY A polygon dataset showing features related to utilities. Some examples include larger tanks, towers

Brownstone, Rob

29

I; Dalhousie University Department of Earth Sciences Hjliijv Nova Scotia  

E-Print Network [OSTI]

(Gnt) around it A) is under plane polarized light (PPL) and B) is under crossed Nichols (XN). Jennifer), the field of view is approximately 10 mm. A is under PPL and B is under XN. A cleavage is visible as well

Beaumont, Christopher

30

Does Nova Scotia have an electric future? Response to  

E-Print Network [OSTI]

it comes to energy security and that electricity is one of these challenges. Hydro etc Wind Bioenergy Coal and radical changes in energy markets (IEA, 2007a; NPC, 2007). The cost and availability of crude oil

Hughes, Larry

31

Towards a new energy strategy for Nova Scotia Response to  

E-Print Network [OSTI]

2020 CO2eemissions(Mt) NRCan 2006 Kyoto (2012) EGSPA (2020) Primary electricity Natural gas liquids Natural gas RPP Coal (imp) Coal (dom) Renewables (non-utility) Secure Low carbon High carbon Insecure #12

Hughes, Larry

32

Air Quality (Nova Scotia, Canada) | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists' ResearchThe OfficeUtility Fed. Government CommercialProgramUtility Fed.

33

Efficiency Nova Scotia Releases Energy Efficiency Mobile App...  

Energy Savers [EERE]

it had its first trial run with fifth and sixth graders at an interactive science museum. "Our ultimate goal is to help make energy efficiency normal behavior," said Leanne...

34

Efficiency Nova Scotia Releases Energy Efficiency Mobile App | Department  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-UpHeat PumpRecord ofESPC ENABLE: ECM Summary ECMWearthe Application of AdvancedSystems

35

ANALYSIS OF THE EFFECT OF PRINCIPAL STRESSES IN THE CHARLEVOIX, LOWER ST. LAWRENCE, NORTHERN APPALACHIAN, LAURENTIAN SLOPE AND GRAND BANKS REGIONS ON FAULTS IN NOVA  

E-Print Network [OSTI]

Brunswick. Point Lepreau is home to a nuclear power plant and seismic risk information in the Northern. Lawrence, offshore Nova Scotia and the Grand Banks. Earthquake and focal mechanism data were obtained from. In the Grand Banks region, stress orientations seem random and the cause of earthquakes is unknown. Offshore

Beaumont, Christopher

36

NOvA Groundbreaking  

SciTech Connect (OSTI)

May 1, 2009, marked the groundbreaking for the NOvA neutrino experiment located in Ash River, Minnesota.

2009-05-07T23:59:59.000Z

37

Piping Plover Status in Nova Scotia Related to Its Reproductive and Behavioral Responses to Human Disturbance  

E-Print Network [OSTI]

Stephen P. Flemming, Roland D. Chiasson, Peter C. Smith, Peter J. Austin-Smith, Robert P. Bancroft ...

38

Space Heating Trends in Prince Edward Island and Nova Scotia1 Mandeep Dhaliwal and Larry Hughes  

E-Print Network [OSTI]

. 1 Introduction Worldwide, economies are facing the problem of higher energy costs. This, coupled to reduce its energy intensity. One such sector is the residential sector, which though consumed only 17 percent of Canada's total secondary end use in 2003 (NRCan, 2006), has a large potential for reduction

Hughes, Larry

39

Freezing in the dark: Energy security and heating emergencies in Nova Scotia  

E-Print Network [OSTI]

is it important? ­ Economic growth ­ Poverty reduction ­ Political stability Sources: IEA, 2001; "Energy Security (especially heating): ­ Review existing demand, services, and potential secure su

Hughes, Larry

40

MERCURY FLUX MEASUREMENTS OVER AIR AND WATER IN KEJIMKUJIK NATIONAL PARK, NOVA SCOTIA  

E-Print Network [OSTI]

temperature, and this dependence was well described by an Arrhenius-type expression with an activation energy from the atmosphere are wet and dry deposition. Once entering a watershed via precipitation and dry deposition mercury can be transformed to more Water, Air, and Soil Pollution 122: 183­202, 2000. © 2000

Folkins, Ian

Note: This page contains sample records for the topic "nova scotia environment" 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

Potential Urban Forest Carbon Sequestration and Storage Capacities in Burnside Industrial Park, Nova Scotia.  

E-Print Network [OSTI]

??Urban and industrial settings represent potential areas for increased carbon (C) sequestration and storage through intensified tree growth. Consisting of an estimated 1270 ha of (more)

Walsh, Alison

2012-01-01T23:59:59.000Z

42

MHK Projects/OpenHydro Bay of Fundy Nova Scotia CA | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429Lacey,(MonasterLowell Point, Alaska:LuzClick hereInformation OSUMaui

43

Soil Profile CO2 concentrations in forested and clear cut sites in Nova Scotia, Canada  

E-Print Network [OSTI]

concentration; Forest management; Soil temperature; Soil moisture; Soil texture 1. Introduction Subsurface2 production and transport caused by the complex interactions between biotic and environmental content, and soil physical characteristics (transport factors) mainly determine the variability

Beltrami, Hugo

44

Research Review NOVA and Astronomy  

E-Print Network [OSTI]

Research Review NOVA and Astronomy 2010 October 2011 #12;2 QANU / Research Review NOVA and Astronomy Quality Assurance Netherlands Universities (QANU) Catharijnesingel 56 PO Box 8035 3503 RA Utrecht NOVA and Astronomy 3 Contents: Update 5 1. The Review Committee and Review Procedures 7 2. Remarks

van Rooij, Robert

45

NOvA First Blast  

SciTech Connect (OSTI)

Blasting began at the future site of the NOvA detector facility near Ash River, Minnesota, on Monday, July 20.

2009-07-22T23:59:59.000Z

46

Funding for the food miles project was provided through Agriculture and Agri-Food Canada's Advancing Canadian Agriculture and Agri-Food (ACAAF) Program. In Nova Scotia the program is delivered by Agri-Futures Nova Scotia.  

E-Print Network [OSTI]

Funding for the food miles project was provided through Agriculture and Agri-Food Canada.................................................................... 7 Energy .................................................................................. 9 Self grown? With these two questions at the fore, combing through various statistics and reports

Peak, Derek

47

This project was funded by Nova Scotia Power. The views and opinions expressed in the report are those of the Do Electric Vehicles Make Carbon-Sense in Nova Scotia?  

E-Print Network [OSTI]

the EPRI report, Environmental Assessment of Plug-In Hybrid Electric Vehicles, Volume 1: Nationwide Greenhouse Gas Emissions (EPRI, 2007), which determines annual emissions based on the vehicle's Utility Factor (UF), the distance driven electrically and non-electrically (i.e., with gasoline). In the EPRI

Hughes, Larry

48

Explosive lithium production in the classical nova V339 Del (Nova Delphini 2013)  

E-Print Network [OSTI]

The origin of lithium (Li) and its production process have long been an unsettled question in cosmology and astrophysics. Candidates environments of Li production events or sites suggested by previous studies include big bang nucleosynthesis, interactions of energetic cosmic rays with interstellar matter, evolved low mass stars, novae, and supernova explosions. Chemical evolution models and observed stellar Li abundances suggest that at least half of the present Li abundance may have been produced in red giants, asymptotic giant branch (AGB) stars, and novae. However, no direct evidence for the supply of Li from stellar objects to the Galactic medium has yet been found. Here we report on the detection of highly blue-shifted resonance lines of the singly ionized radioactive isotope of beryllium, $^{7}$Be, in the near ultraviolet (UV) spectra of the classical nova V339 Del (Nova Delphini 2013). Spectra were obtained 38 to 48 days after the explosion. $^{7}$Be decays to form $^{7}$Li within a short time (half-li...

Tajitsu, Akito; Naito, Hiroyuki; Arai, Akir; Aoki, Wako

2015-01-01T23:59:59.000Z

49

Projected impacts of climate change on species distribution in the Acadian Forest region of eastern Nova Scotia  

E-Print Network [OSTI]

.e., hydrological cycle and earth- sun geometry. Growing degree days and mean air temperature are basedProjected impacts of climate change on species distribution in the Acadian Forest region of eastern on processing remote sensing data, mean air temperatures serves as one of several inputs to model calculation

50

Environment  

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

Environment Environment Our good neighbor pledge: to contribute to quality of life in Northern New Mexico through economic development, excellence in education, and active employee...

51

The flow of the Antarctic Circumpolar Current over the North Scotia Ridge  

E-Print Network [OSTI]

obstacle to the flow of deep water, with the ma- jority of the deep water passing through the 3100 m deep. Weddell Sea Deep Water was not detected passing through Shag Rocks Passage, contrary to some previous- sured during the North Scotia Ridge Overflow Project, which included the first extensive hydrographic

Stevens, David

52

Argonne's Vilas Pol on NOVA!  

ScienceCinema (OSTI)

Can innovations in materials science help clean up our world? Argonne's material scientist Vilas Pol guest starred on NOVA's "Making Stuff: Cleaner," where David Pogue explored the rapidly-developing science and business of clean energy.

None

2013-04-19T23:59:59.000Z

53

NOvA Experiment - The Local Community  

ScienceCinema (OSTI)

Local proprietors Steve and Deb Wieber discuss the impact of the NOvA experiment on their community.

Deb Wieber

2010-01-08T23:59:59.000Z

54

NOvA Experiment - The Local Community  

SciTech Connect (OSTI)

Local proprietors Steve and Deb Wieber discuss the impact of the NOvA experiment on their community.

Deb Wieber

2009-05-14T23:59:59.000Z

55

Environment  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4: NetworkingEnvironment Environment Events Learn aboutEnvironment

56

Lesson learned from (some) recurrent novae  

E-Print Network [OSTI]

In this talk we present early decline and nebular spectra of the recurrent novae YY Dor and nova LMC 2009. These and a few other recurrent novae of the same type, share similar spectral characteristics and evolution. We will critically discuss those common features suggesting same white dwarf progenitor and post outburst phases for all of them.

Mason, Elena

2013-01-01T23:59:59.000Z

57

Nuclear Thermometers for Classical Novae  

E-Print Network [OSTI]

Classical novae are stellar explosions occurring in binary systems, consisting of a white dwarf and a main sequence companion. Thermonuclear runaways on the surface of massive white dwarfs, consisting of oxygen and neon, are believed to reach peak temperatures of several hundred million kelvin. These temperatures are strongly correlated with the underlying white dwarf mass. The observational counterparts of such models are likely associated with outbursts that show strong spectral lines of neon in their shells (neon novae). The goals of this work are to investigate how useful elemental abundances are for constraining the peak temperatures achieved during these outbursts and determine how robust "nova thermometers" are with respect to uncertain nuclear physics input. We present updated observed abundances in neon novae and perform a series of hydrodynamic simulations for several white dwarf masses. We find that the most useful thermometers, N/O, N/Al, O/S, S/Al, O/Na, Na/Al, O/P, and P/Al, are those with the s...

Downen, Lori N; Jos, Jordi; Starrfield, Sumner

2012-01-01T23:59:59.000Z

58

Environment  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4: NetworkingEnvironment Environment Events Learn about our

59

Environment  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4: NetworkingEnvironment Environment Events Learn about

60

THE NOVA RATE IN NGC 2403  

SciTech Connect (OSTI)

A multi-epoch H{alpha} survey of the late-type spiral galaxy NGC 2403 has been completed in order to determine its nova rate. A total of nine nova candidates were discovered in 48 nights of observation with two different telescopes over the period from 2001 February to 2012 April. After making corrections for temporal coverage and spatial completeness, a nova rate of 2.0{sup +0.5} {sub -0.3} yr{sup -1} was determined. This rate corresponds to a luminosity-specific nova rate of 2.5 {+-} 0.7 novae per year per 10{sup 10} L {sub Sun ,K}. This value is consistent with that of the similar Hubble-type galaxy, M33, and is typical of those of other galaxies with measured nova rates, which range from 1 to 3 novae per year per 10{sup 10} L {sub Sun ,K}.

Franck, J. R.; Shafter, A. W. [Department of Astronomy, San Diego State University, San Diego, CA 92182 (United States); Hornoch, K. [Astronomical Institute, Academy of Sciences, CZ-251 65 Ondrejov (Czech Republic); Misselt, K. A. [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States)

2012-11-20T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

AT Cnc: A SECOND DWARF NOVA WITH A CLASSICAL NOVA SHELL  

SciTech Connect (OSTI)

We are systematically surveying all known and suspected Z Cam-type dwarf novae for classical nova shells. This survey is motivated by the discovery of the largest known classical nova shell, which surrounds the archetypal dwarf nova Z Camelopardalis. The Z Cam shell demonstrates that at least some dwarf novae must have undergone classical nova eruptions in the past, and that at least some classical novae become dwarf novae long after their nova thermonuclear outbursts, in accord with the hibernation scenario of cataclysmic binaries. Here we report the detection of a fragmented 'shell', 3 arcmin in diameter, surrounding the dwarf nova AT Cancri. This second discovery demonstrates that nova shells surrounding Z Cam-type dwarf novae cannot be very rare. The shell geometry is suggestive of bipolar, conical ejection seen nearly pole-on. A spectrum of the brightest AT Cnc shell knot is similar to that of the ejecta of the classical nova GK Per, and of Z Cam, dominated by [N II] emission. Galaxy Evolution Explorer FUV imagery reveals a similar-sized, FUV-emitting shell. We determine a distance of 460 pc to AT Cnc, and an upper limit to its ejecta mass of {approx}5 Multiplication-Sign 10{sup -5} M {sub Sun }, typical of classical novae.

Shara, Michael M.; Mizusawa, Trisha; Zurek, David [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192 (United States); Wehinger, Peter [Steward Observatory, the University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Martin, Christopher D.; Neill, James D.; Forster, Karl [Department of Physics, Math and Astronomy, California Institute of Technology, 1200 East California Boulevard, Mail Code 405-47, Pasadena, CA 91125 (United States); Seibert, Mark [Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States)

2012-10-20T23:59:59.000Z

62

NOVA Making Stuff Season 2  

SciTech Connect (OSTI)

Over the course of four weeks in fall 2013, 11.7 million Americans tuned in to PBS to follow host David Pogue as he led them in search of engineering and scientific breakthroughs poised to change our world. Levitating trains, quantum computers, robotic bees, and bomb-detecting plantsthese were just a few of the cutting-edge innovations brought into the living rooms of families across the country in NOVAs four-part series, Making Stuff: Faster, Wilder, Colder, and Safer. Each of the four one-hour programs gave viewers a behind-the-scenes look at novel technologies poised to change our worldshowing them how basic research and scientific discovery can hold the keys to transforming how we live. Making Stuff Season 2 (MS2) combined true entertainment with educational value, creating a popular and engaging series that brought accessible science into the homes of millions. NOVAs goal to engage the public with such technological innovation and basic research extended beyond the broadcast series, including a variety of online, educational, and promotional activities: original online science reporting, web-only short-form videos, a new online quiz-game, social media engagement and promotion, an educational outreach toolkit for science educators to create their own makerspaces, an online community of practice, a series of nationwide Innovation Cafs, educator professional development, a suite of teacher resources, an Idealab, participation in national conferences, and specialized station relation and marketing. A summative evaluation of the MS2 project indicates that overall, these activities helped make a significant impact on the viewers, users, and participants that NOVA reached. The final evaluation conducted by Concord Evaluation Group (CEG) confidently concluded that the broadcast, website, and outreach activities were successful at achieving the projects intended impacts. CEG reported that the MS2 series and website content were successful in raising awareness and sparking interest in innovation, and increased public awareness that basic research leads to technological innovation; this interest was also sustained over a six month period. Efforts to create an online community of practice were also successful: the quality of collaboration increased, and community members felt supported while using Maker pedagogy. These findings provide clear evidence that large-scale science media projects like MS2 are an effective means of moving the needle on attitudes about and excitement for science. NOVAs broadcast audience and ratings have always indicated that a large portion of the population is interested in and engages with educational science media on a weekly basis. Yet these evaluation results provide the empirical evidence that beyond being capable of attracting, maintaining, and growing a dedicated group of citizens interested in science, these showswith their diverse content provided on a variety of media channelsare capable of sparking new interest in science, raising public awareness of the importance of science, and maintaining and growing that interest over time. In a country where approximately a quarter of the population doesnt know the earth rotates around the sun,1 roughly half still dont accept evolution,2 and about 20% dont think climate change is happening,3 the importance of these findings cannot be overstated. The success of MS2 suggests that large-scale media projects dedicated to and linked by coverage of scientific big ideas are an effective means of shifting public opinion onand improving understanding ofscience. REFERENCES 1, 2 National Science Foundation, Science and Engineering Indicators (2014). Chapter 7: Science and Technology: Public Attitudes and Understanding. 3 Leiserowitz, A., Maibach, E., Roser-Renouf, C., Feinberg, G., & Rosenthal, S. (2014) Climate change in the American mind: April, 2014. Yale University and George Mason University. New Haven, CT: Yale Project on Climate Change Communication.

Leombruni, Lisa; Paulsen, Christine Andrews

2014-12-12T23:59:59.000Z

63

NOVA Portal: Submit VASP Jobs to Carver via the Web  

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

NOVA Portal: Submit VASP Jobs to Carver via the Web NOVA Portal: Submit VASP Jobs to Carver via the Web May 11, 2012 by Francesca Verdier (0 Comments) NOVA is an experimental web...

64

Environment Environment  

E-Print Network [OSTI]

Delivery Economy Community Environment Economy Community Environment Economy Community Environment Environment Climate change programme EconomyCommunity #12;Climate change programme | 2 Climate change is one are described. Finally, the programme explains how the commitments will be delivered and monitored. Environment

65

3218 VOLUME 128M O N T H L Y W E A T H E R R E V I E W 2000 American Meteorological Society  

E-Print Network [OSTI]

of Physics, Dalhousie University, Halifax, Nova Scotia, Canada @ GKSS, Geesthacht, Germany & Atmospheric

Jakob, Christian

66

The NOvA Technical Design Report  

SciTech Connect (OSTI)

Technical Design Report (TDR) describes the preliminary design of the NOvA accelerator upgrades, NOvA detectors, detector halls and detector sites. Compared to the March 2006 and November 2006 NOvA Conceptual Design Reports (CDR), critical value engineering studies have been completed and the alternatives still active in the CDR have been narrowed to achieve a preliminary technical design ready for a Critical Decision 2 review. Many aspects of NOvA described this TDR are complete to a level far beyond a preliminary design. In particular, the access road to the NOvA Far Detector site in Minnesota has an advanced technical design at a level appropriate for a Critical Decision 3a review. Several components of the accelerator upgrade and new neutrino detectors also have advanced technical designs appropriate for a Critical Decision 3a review. Chapter 1 is an Executive Summary with a short description of the NOvA project. Chapter 2 describes how the Fermilab NuMI beam will provide a narrow band beam of neutrinos for NOvA. Chapter 3 gives an updated overview of the scientific basis for the NOvA experiment, focusing on the primary goal to extend the search for {nu}{sub {mu}} {yields} {nu}{sub e} oscillations and measure the sin{sup 2}(2{theta}{sub 13}) parameter. This parameter has not been measured in any previous experiment and NOvA would extend the search by about an order of magnitude beyond the current limit. A secondary goal is to measure the dominant mode oscillation parameters, sin{sup 2}(2{theta}{sub 23}) and {Delta}m{sub 32}{sup 2} to a more precise level than previous experiments. Additional physics goals for NOvA are also discussed. Chapter 4 describes the Scientific Design Criteria which the Fermilab accelerator complex, NOvA detectors and NOvA detector sites must satisfy to meet the physics goals discussed in Chapter 3. Chapter 5 is an overview of the NOvA project. The changes in the design relative to the NOvA CDR are discussed. Chapter 6 summarizes the NOvA design performance relative to the Design Criteria set out in Chapter 4. Chapter 7 presents the Work Breakdown Structure dictionary at Level 3 and the Milestone dictionary. Chapters 8 through 17 then take each Level 2 WBS element of the NOvA project and present each part of the design in more detail than the overview given in Chapter 5. Specific technical design criteria are delineated for each part of the project in addition to the scientific design criteria outlined in Chapter 4. Changes in the design since the NOvA CDR are discussed in detail. The work remaining to bring each part of this preliminary design to a final design is outlined. Appendix A is a guide to other NOvA Project documentation with links to those documents.

Ayres, D.S.; Drake, G.R.; Goodman, M.C.; Grudzinski, J.J.; Guarino, V.J.; Talaga, R.L.; Zhao, A.; /Argonne; Stamoulis, P.; Stiliaris, E.; Tzanakos, G.; Zois, M.; /Athens U. /Caltech /UCLA /Fermilab /College de France /Harvard U. /Indiana U. /Lebedev Inst. /Michigan State U. /Minnesota U., Duluth /Minnesota U.

2007-10-08T23:59:59.000Z

67

Nova control system: goals, architecture, and system design  

SciTech Connect (OSTI)

The control system for the Nova laser must operate reliably in a harsh pulse power environment and satisfy requirements of technical functionality, flexibility, maintainability and operability. It is composed of four fundamental subsystems: Power Conditioning, Alignment, Laser Diagnostics, and Target Diagnostics, together with a fifth, unifying subsystem called Central Controls. The system architecture utilizes a collection of distributed microcomputers, minicomputers, and components interconnected through high speed fiber optic communications systems. The design objectives, development strategy and architecture of the overall control system and each of its four fundamental subsystems are discussed. Specific hardware and software developments in several areas are also covered.

Suski, G.J.; Duffy, J.M.; Gritton, D.G.; Holloway, F.W.; Krammen, J.R.; Ozarski, R.G.; Severyn, J.R.; Van Arsdall, P.J.

1982-05-19T23:59:59.000Z

68

Nova laser alignment control system  

SciTech Connect (OSTI)

Alignment of the Nova laser requires control of hundreds of optical components in the ten beam paths. Extensive application of computer technology makes daily alignment practical. The control system is designed in a manner which provides both centralized and local manual operator controls integrated with automatic closed loop alignment. Menudriven operator consoles using high resolution color graphics displays overlaid with transport touch panels allow laser personnel to interact efficiently with the computer system. Automatic alignment is accomplished by using image analysis techniques to determine beam references points from video images acquired along the laser chain. A major goal of the design is to contribute substantially to rapid experimental turnaround and consistent alignment results. This paper describes the computer-based control structure and the software methods developed for aligning this large laser system.

Van Arsdall, P.J.; Holloway, F.W.; McGuigan, D.L.; Shelton, R.T.

1984-03-29T23:59:59.000Z

69

EIS-0339: Presidential Permit Application, GenPower 500 kV Submarine Electric Transmission Cable from Nova Scotia to New York  

Broader source: Energy.gov [DOE]

The Department of Energy (DOE) announced its intent to prepare an Environmental Impact Statement (EIS) in accordance with the National Environmental Policy Act of 1969 (NEPA) for GenPower New York, L.L.C.s (GenPower) request for a Presidential permit for a proposed international electric transmission line.

70

A 1600-year history of the Labrador Current off Nova Scotia Received: 11 June 2002 / Accepted: 3 January 2003 / Published online: 8 April 2003  

E-Print Network [OSTI]

is one of the two main sources for the Labrador Current, warming and melting of ice caps in that region may have affected Labrador Current properties. Before this recent warming, sea surface temperature

Sachs, Julian P.

71

Review of Environmental Goals and Sustainable Prosperity Act A submission to  

E-Print Network [OSTI]

ERG/201105 Review of Environmental Goals and Sustainable Prosperity Act A submission to the Nova to the call for comments on the Government of Nova Scotia's 2011 review of the Environmental Goals uninterrupted physical availability at a price which is affordable, while respecting environment concerns" (IEA

Hughes, Larry

72

AN EXTENDED GRID OF NOVA MODELS. III. VERY LUMINOUS, RED NOVAE  

SciTech Connect (OSTI)

Extremely luminous, red eruptive variables like RV in M31 are being suggested as exemplars of a new class of astrophysical objects. Our greatly extended series of nova simulations shows that classical nova models can produce very red, luminous eruptions. In a poorly studied corner of three-dimensional nova parameter space (very cold, low-mass white dwarfs, accreting at very low rates) we find bona fide classical novae that are very luminous and red because they eject very slowly moving, massive envelopes. A crucial prediction of these nova models-in contrast to the predictions of merging star ('mergeburst') models-is that a hot remnant, the underlying white dwarf, will emerge after the massive ejected envelope has expanded enough to become optically thin. This blue remnant must fade on a timescale of decades-much faster than a 'mergeburst', which must fade on timescales of millennia or longer. Furthermore, the cooling nova white dwarf and its expanding ejecta must become redder in the years after eruption, while a contracting mergeburst must become hotter and bluer. We predict that red novae will always brighten to L {approx} 1000 L{sub sun} for about one year before rising to the maximum luminosity at L {approx} 10{sup 6}-10{sup 7} L{sub sun}. The maximum luminosity attainable by a nova is likely to be L {approx} 10{sup 7} L{sub sun}, corresponding to M {approx} -12. In an accompanying paper, we describe a fading, luminous blue candidate for the remnant of M31-RV; it is observed with the Hubble Space Telescope to be compatible only with the nova model.

Shara, Michael M.; Zurek, David [Department of Astrophysics, American Museum of Natural History, Central Park West and 79th Street, New York, NY 10024-5192 (United States); Yaron, Ofer; Prialnik, Dina; Kovetz, Attay [Department of Geophysics and Planetary Sciences, Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978 (Israel)

2010-12-10T23:59:59.000Z

73

A SPECTROSCOPIC AND PHOTOMETRIC SURVEY OF NOVAE IN M31  

SciTech Connect (OSTI)

We report the results of a multi-year spectroscopic and photometric survey of novae in M31 that resulted in a total of 53 spectra of 48 individual nova candidates. Two of these, M31N 1995-11e and M31N 2007-11g, were revealed to be long-period Mira variables, not novae. These data double the number of spectra extant for novae in M31 through the end of 2009 and bring to 91 the number of M31 novae with known spectroscopic classifications. We find that 75 novae (82%) are confirmed or likely members of the Fe II spectroscopic class, with the remaining 16 novae (18%) belonging to the He/N (and related) classes. These numbers are consistent with those found for Galactic novae. We find no compelling evidence that spectroscopic class depends sensitively on spatial position or population within M31 (i.e., bulge versus disk), although the distribution for He/N systems appears slightly more extended than that for the Fe II class. We confirm the existence of a correlation between speed class and ejection velocity (based on line width), as in the case of Galactic novae. Follow-up photometry allowed us to determine light-curve parameters for a total of 47 of the 91 novae with known spectroscopic class. We confirm that more luminous novae generally fade the fastest and that He/N novae are typically faster and brighter than their Fe II counterparts. In addition, we find a weak dependence of nova speed class on position in M31, with the spatial distribution of the fastest novae being slightly more extended than that of slower novae.

Shafter, A. W. [Department of Astronomy, San Diego State University, San Diego, CA 92182 (United States); Darnley, M. J.; Bode, M. F.; Hounsell, R. A. [Astrophysics Research Institute, Liverpool John Moores University, Birkenhead CH41 1LD (United Kingdom); Hornoch, K. [Astronomical Institute, Academy of Sciences, CZ-251 65 Ondrejov (Czech Republic); Filippenko, A. V.; Chornock, R. [Department of Astronomy, University of California, Berkeley, CA 94720-3411 (United States); Ciardullo, R. [Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802 (United States); Misselt, K. A. [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Matheson, T. [National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719-4933 (United States)

2011-06-10T23:59:59.000Z

74

CIRCUMSTELLAR SHELL FORMATION IN SYMBIOTIC RECURRENT NOVAE  

SciTech Connect (OSTI)

We present models of spherically symmetric recurrent nova shells interacting with circumstellar material (CSM) in a symbiotic system composed of a red giant (RG) expelling a wind and a white dwarf accreting from this material. Recurrent nova eruptions periodically eject material at high velocities ({approx}> 10{sup 3} km s{sup -1}) into the RG wind profile, creating a decelerating shock wave as CSM is swept up. High CSM densities cause the shocked wind and ejecta to have very short cooling times of days to weeks. Thus, the late-time evolution of the shell is determined by momentum conservation instead of energy conservation. We compute and show evolutionary tracks of shell deceleration, as well as post-shock structure. After sweeping up all the RG wind, the shell coasts at a velocity {approx}100 km s{sup -1}, depending on system parameters. These velocities are similar to those measured in blueshifted CSM from the symbiotic nova RS Oph, as well as a few Type Ia supernovae that show evidence of CSM, such as 2006X, 2007le, and PTF 11kx. Supernovae occurring in such systems may not show CSM interaction until the inner nova shell gets hit by the supernova ejecta, days to months after the explosion.

Moore, Kevin; Bildsten, Lars [Department of Physics, Broida Hall, University of California, Santa Barbara, CA 93106 (United States)

2012-12-20T23:59:59.000Z

75

NOvA: Exploring Neutrino Mysteries  

ScienceCinema (OSTI)

Neutrinos are a mystery to physicists. They exist in three different flavors and mass states and may be able to give hints about the origins of the matter-dominated universe. A new long-baseline experiment led by Fermilab called NOvA may provide some answers.

Vahle, Tricia; Messier, Mark

2014-08-12T23:59:59.000Z

76

Very high energy gamma-ray follow-up observations of novae and dwarf novae with the MAGIC telescopes  

E-Print Network [OSTI]

In the last few years the Fermi -LAT instrument has detected GeV gamma-ray emission from a few novae. Such GeV emission can be interpreted in terms of an inverse Compton process of electrons accelerated in a shock. It is expected that hadrons can be accelerated in the same conditions, but reaching much higher energies. They can produce a second component in the gamma-ray spectrum at TeV energies. We performed follow-up observations of selected novae and dwarf novae in a search of the second component in the gamma-ray spectrum. This can shed light on the acceleration process of leptons and hadrons in nova explosions. We have performed observations with the MAGIC telescopes of 3 sources, a symbiotic nova YY Her, a dwarf nova ASASSN-13ax and a classical nova V339 Del shortly after their outbursts.

Sitarek, J; Lopez-Coto, R; Wilhelmi, E de Ona; Desiante, R; Longo, F; Hays, E

2015-01-01T23:59:59.000Z

77

Environment Canada Industrial Programs Section  

E-Print Network [OSTI]

#12;Environment Canada Industrial Programs Section Environmental Protection Guide for Best Management Practices for Process Water Management at Fish Processing Plants in British Columbia h~ NovaTec Consultants Inc. Environmental Engineers and Scientists September 1994 Project No: 1043.16 #12;DISCLAIMER

78

Hubble Space Telescope Observations of Novae in M49  

E-Print Network [OSTI]

A search for novae in M49 (NGC 4472) has been undertaken with the Hubble Space Telescope. A 55-day observing campaign in F555W (19 epochs) and F814W (five epochs) has led to the discovery of nine novae. We find that M49 may be under-abundant in slow, faint novae relative to the Milky Way and M31. Instead, the decline rates of the M49 novae are remarkably similar to those of novae in the LMC. This fact argues against a simple classification of novae in "bulge" and "disk" sub-classes. We examine the Maximum-Magnitude versus Rate of Decline (MMRD) relation for novae in M49, finding only marginal agreement with the Galactic and M31 MMRD relations. A recalibration of the Buscombe-de Vaucouleurs relation gives an absolute magnitude 15 days past maximum of M_{V,15} = -6.36+/-0.19, which is substantially brighter than previous calibrations based on Galactic novae. Monte Carlo simulations yield a global nova rate for M49 of 100{+35}{-30} per year, and a luminosity-specific nova rate in the range \

Laura Ferrarese; Patrick Cote; Andres Jordan

2003-09-30T23:59:59.000Z

79

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 16, doi:10.1002/2013GL058114, 2013 Surface exchange between the Weddell and Scotia Seas  

E-Print Network [OSTI]

GEOPHYSICAL RESEARCH LETTERS, VOL. 40, 1­6, doi:10.1002/2013GL058114, 2013 Surface exchange between and Scotia Seas, Geophys. Res. Lett., 40, doi:10.1002/2013GL058114. 1. Introduction [2] The intermittent. All Rights Reserved. 0094-8276/13/10.1002/2013GL058114 [3] The intricate structure of the Weddell Sea

Thompson, Andrew

80

Nova power systems: status and operating experience  

SciTech Connect (OSTI)

This paper describes the pulse power systems that are used in these lasers; the status and the operating experiences. The pulsed power system for the Nova Laser is comprised of several distinct technology areas. The large capacitor banks for driving flashlamps that excite the laser glass is one area, the fast pulsers that drive pockels cell shutters is another area, and the contol system for the pulsed power is a third. This paper discusses the capacitor banks and control systems.

Whitham, K.; Merritt, B.T.; Gritton, D.G.; Smart, A.J.; Holloway, R.W.; Oicles, J.A.

1983-11-28T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Novas Descobertas sobre o Sistema Solar  

E-Print Network [OSTI]

Novas Descobertas sobre o Sistema Solar FIS 2009 Explorando o Universo: dos Quarks aos Quasares da temperatura da Terra A forma do espectro solar (máximo de emissão no visível) também é muito energia para a Terra, a Terra está em equilíbrio radioactivo com o Sol, este é um dos fatores

dos Santos, C.A.

82

Optical and EUV light curves of dwarf nova outbursts  

SciTech Connect (OSTI)

We combine AAVSO and VSS/RASNZ optical and Extreme Ultraviolet Explorer EUV light curves of dwarf novae in outburst to place constraints on the nature of dwarf nova outbursts. From the observed optical-EUV time delays of {approx} 0.75-1.5 days, we show that the propagation velocity of the dwarf nova instability heating wave is {approx} 3 km s{sup -1}.

Mauche, C W; Mattei, J A; Bateson, F M

2000-11-15T23:59:59.000Z

83

A SPITZER SURVEY OF NOVAE IN M31  

SciTech Connect (OSTI)

We report the results of the first infrared survey of novae in M31. Both photometric and spectroscopic observations of a sample of 10 novae (M31N 2006-09c, 2006-10a, 2006-10b, 2006-11a, 2007-07f, 2007-08a, 2007-08d, 2007-10a, 2007-11d, and 2007-11e) were obtained with the Spitzer Space Telescope. The observations, which were obtained between {approx}3 and {approx}7 months after discovery, revealed evidence for dust formation in two of the novae: M31N 2006-10a and (possibly) 2007-07f, and [Ne II] 12.8 {mu}m line emission in a third (2007-11e). The Spitzer observations were supplemented with ground-based optical photometric and spectroscopic data that were used to determine the speed classes and spectroscopic types of the novae. After including data for dust-forming Galactic novae, we show that dust formation timescales are correlated with nova speed class in that dust typically forms earlier in faster novae. Our failure to detect the signature of dust formation in most of our M31 sample is likely a result of the relatively long delay between nova eruption and our Spitzer observations. The two novae for which we found evidence of dust formation were the two 'slowest' novae in our sample. Finally, as expected, we found that the majority of the novae in our sample belong to the Fe II spectroscopic class, with only one clear example of the He/N class (M31N 2006-10b). Typical of an He/N system, M31N 2006-10b was the fastest nova in our sample, not detected with the IRS, and just barely detected in three of the IRAC bands when it was observed {approx}4 months after eruption.

Shafter, A. W.; Rubin, M. [Department of Astronomy, San Diego State University, San Diego, CA 92182 (United States); Bode, M. F.; Darnley, M. J. [Astrophysics Research Institute, Liverpool John Moores University, Birkenhead CH41 1LD (United Kingdom); Misselt, K. A. [Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Hornoch, K. [Astronomical Institute, Academy of Sciences, CZ-251 65 Ondrejov (Czech Republic)

2011-01-20T23:59:59.000Z

84

ccpi-petra nova | netl.doe.gov  

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

ccpi-petra nova Industrial Carbon Capture and Storage Clean Coal Power Initiative Power Plant Improvement Initiative Clean Coal Technology Demonstration Program FutureGen Petra...

85

Hopkins Ultraviolet Telescope Observations of Nova Circini 1995 and Nova Aquilae 1995  

E-Print Network [OSTI]

companion star undergoes a thermonuclear runaway. Accurate abundance information is important as a diagnostic of this thermonuclear runaway, and of the initial conditions which produce the runaway. Enhanced carbon, nitrogen, and oxygen (CNO) abundances are necessary in fast novae for thermonuclear runaway

86

Api Nova Energia Srl | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWendeGuo Feng Bio Energy Co Ltd Jump to:SummariesApi Nova Energia

87

NovaTorque Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's HeatMexico:CommunityNorthwest Basin and RangeNorventoNovaTorque Inc Jump

88

NovaTorque | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's HeatMexico:CommunityNorthwest Basin and RangeNorventoNovaTorque Inc

89

Spectra Nova Technologies Inc | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty Ltd JumpGTZHolland, Illinois:5717551°FarmsSES Jump to: navigation,Spectra Nova

90

Nova V5116 Sgr and searching for superhumps in nova remnants  

E-Print Network [OSTI]

We present the period analysis of unfiltered photometric observations of V5116 Sgr (Nova Sgr 2005 #2) and we search for superhump candidates in novae remnants. The PDM method for period analysis is used. The masses of the novae componets are estimated from the secondary mass -- orbital period and primary mass -- decline time relations. We found that 13 nights of V5116 Sgr observations in the year 2006 are modulated with a period of $0.1238 \\pm 0.0001$ d ($2.9712 \\pm 0.0024$ h). Following the shape of the phased light curves and no apparent change in the value of the periodicity in different subsamples of the data, we interpret the period as orbital in nature. The binary system then falls within the period gap of the orbital period distribution of cataclysmic variables. From the maximum magnitude -- rate of decline relation, we estimate the maximum absolute visual magnitude of $M_{\\rm Vmax} = -8.85 \\pm 0.04$ mag using the measured value of decline $t_{\\rm 2} = 6.5 \\pm 1.0$ d. The mass-period relation for cataclysmic variables yields a secondary mass estimate of about $0.26 \\pm 0.05 {\\rm M}_{\\rm \\odot}$. We propose that V5116 Sgr is a high inclination system showing an irradiation effect of the secondary star. No fully developed accretion disc up to the tidal radius with the value lower than $3.5 10^{10}$ cm is probable. The mass ratio was estimated in a few novae and the presence or absence of superhumps in these systems was compared with the mass ratio limit for superhumps of about 0.35. We found that in the majority of novae with expected superhumps, this variability has not been found yet. Therefore, more observations of these systems is encouraged.

A. Dobrotka; A. Retter; A. Liu

2007-10-30T23:59:59.000Z

91

A new Bayesian ensemble of trees approach for land cover classification of satellite imagery  

E-Print Network [OSTI]

projection) over Kings County, Nova Scotia, Canada, to classify the land cover. Several prediction accuracy, projection UTM) sur Kings County, Nova Scotia, Canada, pour la classification de l'occupation du sol

Ranjan, Pritam

92

Pumped profiles of ammonium and chlorophyll fluorescence from the upper 120 meters of the western Gulf of Mexico and the southwest Scotia Sea  

E-Print Network [OSTI]

the depth of the 15 isotherm and approximate centers of anticyclonic feature (Station Alpha) and cyclonic feature (Station Bravo), denoted by H and L, respectively. Stars mark deployment of the parachute drogued surface buoys tracked for diel pumped...) and chlorophyll (lower trace) and region of 50 kHz. acoustic scattering. 25 Cumulative vertical structure index for Scotia Sea pumped profile 474. 27 FI GURE PAGE 10. Temperature fine structure during pumped vertical profiles, Station Alpha, Western Gulf...

Johnson, Mark Andrew

1981-01-01T23:59:59.000Z

93

Near-Infrared and Optical Studies of the fast nova V4643 Sgr (Nova Sagittarii 2001)  

E-Print Network [OSTI]

V4643 Sagittarii or Nova Sagittarii 2001 was discovered in outburst at 7.7 mag. on 2001 February 24. Here, we present near-infrared results of this fast classical nova obtained in the early decline phase in 2001 March followed by optical observations about one month later. Subsequently we also present near-infrared spectra taken later in the nova's evolution, about four months after the outburst, when V4643 Sgr had entered the coronal phase. The spectra in the early decline phase are dominated by emission lines of the HI Brackett series and also the Paschen beta and gamma lines. We study the cause of the excitation of the the OI line at 1.128 micron and discuss the variation in its strength with time after outburst. We discuss the role of optical depth effects on the observed strengths of the hydrogen Brackett and Paschen lines and discuss possible reasons for the puzzling behavior of the Br gamma line strength and whether it is correlated with the OI 1.128 micron line behavior. An optical spectrum is presented which shows that HeII lines are the most prominent features - after HI - to be seen in early 2001 April. We present and also discuss spectra taken in 2001 June and August which prominently show coronal lines of [Si VI] and [Si VII] at 1.9641 micron and 2.4807 micron respectively.

N. M. Ashok; D. P. K. Banerjee; W. P. Varricatt; U. S. Kamath

2006-02-07T23:59:59.000Z

94

Distributed computer control system in the Nova Laser Fusion Test Facility  

SciTech Connect (OSTI)

The EE Technical Review has two purposes - to inform readers of various activities within the Electronics Engineering Department and to promote the exchange of ideas. The articles, by design, are brief summaries of EE work. The articles included in this report are as follows: Overview - Nova Control System; Centralized Computer-Based Controls for the Nova Laser Facility; Nova Pulse-Power Control System; Nova Laser Alignment Control System; Nova Beam Diagnostic System; Nova Target-Diagnostics Control System; and Nova Shot Scheduler. The 7 papers are individually abstracted.

Not Available

1985-09-01T23:59:59.000Z

95

GEODESIC INTERACTIVE SEGMENTATION IN THE COLOR MONOGENIC SIGNAL Explora Nova,  

E-Print Network [OSTI]

GEODESIC INTERACTIVE SEGMENTATION IN THE COLOR MONOGENIC SIGNAL FRAMEWORK G. Demarcq Explora Nova is based on the computation of geodesic distances within color mono- genic signal (CMS) fields-- Interactive Segmentation, Clifford Alge- bra, Color Monogenic Signal, Geodesic Distances 1. INTRODUCTION

Paris-Sud XI, Université de

96

Fermilab | Web Cams | NOvA Far Detector  

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

Follow us on: Facebook Twitter NOvA Far Detector Live Webcam Detector Hall Looking Downstream This text will be replaced View this full feed on Twitter @NOvANuz Twitter Feed...

97

Cimpor inventa nova frmula para reduzir pegada de CO2  

E-Print Network [OSTI]

Cimpor inventa nova fórmula para reduzir pegada de CO2 CIMENTO. A Cimpor descobriu uma nova fórmula para produzir ci- mento que lhe permitirá reduzir a pegada de CO 2 em 25%. Segundo as contas da as fábricas do grupo, seriam emitidos menos quatro milhões de toneladas de CO 2 por ano, o que permitiria uma

Instituto de Sistemas e Robotica

98

Remarkable changes in the near-infrared spectrum of the nova-like variable V4332 Sgr  

E-Print Network [OSTI]

We report on recent near-IR observations of V4332 Sgr - the nova-like variable that erupted in 1994. Its rapid, post-outburst evolution to a cool M type giant/supergiant, soon after its outburst, had showed that it was an unusual object differing from other eruptive variables like classical/symbiotic novae or born-again AGB stars. The present study of V4332 Sgr was motivated by the keen interest in the recent eruption of V838 Mon - which along with V4332 Sgr - is believed to belong to a new class of objects (we propose they may be called "quasi-novae"). Our observations show new developments in the evolution of V4332 Sgr. The most striking feature is the detection of several molecular bands of AlO - a rarely seen molecule in astronomical spectra - in the JHK spectra. Many of these bands are being detected for the first time. The only other detection of some of these AlO bands are in V838 Mon, thereby showing further spectral similarities between the two objects. JHK photometry shows the development of a new dust shell around V4332 Sgr with a temperature of ~ 900K. This dust shell does not appear to be associated with ejecta of the 1994 outburst but is due to a second mass-loss episode which is not expected in a classical nova outburst. The cold molecular environment, suggested by the AlO emission, is also not expected in novae ejecta. We model the AlO bands and also discuss the possible formation mechanism of the AlO.

D. P. K. Banerjee; P. W. Varricatt; N. M. Ashok; O. Launila

2003-10-03T23:59:59.000Z

99

Ventilation and Air Quality in Indoor Ice Skating Arenas Chunxin Yang, Ph.D.1  

E-Print Network [OSTI]

There are thousands of indoor ice rink arenas in the United States, Canada, and Europe. The combustion byproducts from. A field survey of ten ice rink arenas in Greater Boston and Halifax, Nova Scotia indicates that the fuel environment, ventilation INTRODUCTION There are several thousands ice rink arenas in the United States

Chen, Qingyan "Yan"

100

New 34Cl proton-threshold states and the thermonuclear 33S(p,gamma)34Cl rate in ONe novae  

E-Print Network [OSTI]

Analysis of presolar grains in primitive meteorites has shown isotopic ratios largely characteristic of the conditions thought to prevail in various astrophysical environments. A possible indicator for a grain of ONe nova origin is a large 33S abundance: nucleosynthesis calculations predict as much as 150 times the solar abundance of 33S in the ejecta of nova explosions on massive ONe white dwarfs. This overproduction factor may, however, vary by factors of at least 0.01 - 3 because of uncertainties of several orders of magnitude in the 33S(p,gamma)34Cl reaction rate at nova peak temperatures (Tpeak ~ 0.1 - 0.4 GK). These uncertainties arise due to the lack of nuclear physics information for states within ~ 600 keV of the 33S+p threshold in 34Cl (Sp(34Cl) = 5143 keV). To better constrain this rate we have measured, for the first time, the 34S(3He,t)34Cl reaction over the region Ex(34Cl) = 4.9 - 6 MeV. We confirm previous states and find 15 new states in this energy region. New 33S(p,gamma)34Cl resonances at ER = 281(2), 301(2) and 342(2) keV may dominate this rate at relevant nova temperatures. Our results could affect predictions of sulphur isotopic ratios in nova ejecta (e.g., 32S/33S) that may be used as diagnostic tools for the nova paternity of grains.

A. Parikh; T. Faestermann; R. Hertenberger; R. Kruecken; D. Schafstadler; H. -F. Wirth; T. Behrens; V. Bildstein; S. Bishop; K. Eppinger; C. Herlitzius; C. Hinke; M. Schlarb; D. Seiler; K. Wimmer

2009-06-19T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Acknowledgements: The author would like to thank his colleagues and associates for their assistance with this report.  

E-Print Network [OSTI]

. All three replacement energy sources being promoted by the province face significant challenges: wind shortages and unstable energy prices. The purpose of the 2009 Energy Strategy was to help Nova Scotia meet with this report. ERG/200904 Nova Scotia's energy strategy: Energy security for Nova Scotians Response to The Nova

Hughes, Larry

102

NOvA: Building a Next Generation Neutrino Experiment  

ScienceCinema (OSTI)

The NOvA neutrino experiment is searching for the answers to some of the most fundamental questions of the universe. This video documents how collaboration between government research institutions like Fermilab, academia and industry can create one of the largest neutrino detectors in the world.

Perko, John; Williams, Ron; Miller, Bill;

2014-05-30T23:59:59.000Z

103

Summary of control and data acquisition systems for Nova experiments  

SciTech Connect (OSTI)

The Nova Laser has completed its first year of operation. During this period, emphasis has been placed on activation of the facility and of the numerous target and beam diagnostics. Two separate target chambers are in use. Nova operation is separated into two broad functions: Laser Operations and Experiments. The Operations Group provides the laser system control, operation and data acquisition and the Experiments Group provides experiment definition, diagnostic instrumentation and overall data processing. On the Operations side, VAX 11/780 computers are used to set up diagnostic operating parameters and collect data recorded by the CAMAC and CCD modules. These data are delivered in files by electronic link to the Laser Experiments and Analysis Facility (LEAF) VAX 11/785 of the Experiments Group for processing. Film data are digitized at LEAF and the film data files are also processed on the LEAF VAX.

McCauley, E.W.; Campbell, E.M.; Auerbach, J.M.; Montgomery, D.S.; Martin, V.A.; Randolph, J.E.; Shaw, J.G.; Stewart, B.L.; Stone, G.F.

1986-04-01T23:59:59.000Z

104

The recurrent nova U Scorpii - an evolutionary considerations  

E-Print Network [OSTI]

We perform evolutionary calculations of binary stars to find progenitors of systems with parameters similar to the recurrent nova U Sco. We show that a U Sco-type system may be formed starting with an initial binary system which has a low-mass carbon-oxygen white dwarf as an accretor. Since the evolutionary stage of the secondary is not well known, we calculate sequences with hydrogen-rich and helium-rich secondaries. The evolution of the binary may be divided into several observable stages as: classical nova, supersoft X-ray source with stable hydrogen shell burning, or strong wind phase. It culminates in the formation of a massive white dwarf near the Chandrasekhar mass limit. We follow the chemical evolution of the secondary as well as of the matter lost from the system, and we show that observed $^{12}$C/$^{13}$C and N/C ratios may give some information about the nature of the binary.

Marek J. Sarna; Ene Ergma; Jelena Greskevits

2005-11-30T23:59:59.000Z

105

VERITAS OBSERVATIONS OF THE NOVA IN V407 CYGNI  

SciTech Connect (OSTI)

We report on very high energy (E > 100 GeV) gamma-ray observations of V407 Cygni, a symbiotic binary that underwent a nova outburst producing 0.1-10 GeV gamma rays during 2010 March 10-26. Observations were made with the Very Energetic Radiation Imaging Telescope Array System during 2010 March 19-26 at relatively large zenith angles due to the position of V407 Cyg. An improved reconstruction technique for large zenith angle observations is presented and used to analyze the data. We do not detect V407 Cygni and place a differential upper limit on the flux at 1.6 TeV of 2.3 Multiplication-Sign 10{sup -12} erg cm{sup -2} s{sup -1} (at the 95% confidence level). When considered jointly with data from Fermi-LAT, this result places limits on the acceleration of very high energy particles in the nova.

Aliu, E. [Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027 (United States); Archambault, S. [Physics Department, McGill University, Montreal, QC H3A 2T8 (Canada); Arlen, T. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Aune, T.; Bouvier, A. [Santa Cruz Institute for Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 (United States); Beilicke, M.; Buckley, J. H.; Bugaev, V.; Dickherber, R. [Department of Physics, Washington University, St. Louis, MO 63130 (United States); Benbow, W. [Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645 (United States); Bradbury, S. M. [School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT (United Kingdom); Byrum, K. [Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439 (United States); Cannon, A.; Collins-Hughes, E. [School of Physics, University College Dublin, Belfield, Dublin 4 (Ireland); Cesarini, A.; Connolly, M. P. [School of Physics, National University of Ireland Galway, University Road, Galway (Ireland); Ciupik, L. [Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605 (United States); Cui, W. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Decerprit, G. [DESY, Platanenallee 6, 15738 Zeuthen (Germany); Duke, C., E-mail: daniel-d-gall@uiowa.edu, E-mail: kazuma-tsurusaki@uiowa.edu [Department of Physics, Grinnell College, Grinnell, IA 50112-1690 (United States); and others

2012-07-20T23:59:59.000Z

106

Thermonuclear Runaways on Accreting White Dwarfs: Models of Classical Novae Explosions  

E-Print Network [OSTI]

The mechanism of classical novae explosions is explained, together with some of their observational properties. The scarce but not null impact of novae in the chemical evolution of the Milky Way is analyzed, as well as their relevance for the radioactivity in the Galaxy. A special emphasis is given to the predicted gamma-ray emission from novae and its relationship with the thermonuclear model itself and its related nucleosynthesis.

Margarita Hernanz; Jordi Jose

2000-01-11T23:59:59.000Z

107

THE INTER-ERUPTION TIMESCALE OF CLASSICAL NOVAE FROM EXPANSION OF THE Z CAMELOPARDALIS SHELL  

SciTech Connect (OSTI)

The dwarf nova Z Camelopardalis is surrounded by the largest known classical nova shell. This shell demonstrates that at least some dwarf novae must have undergone classical nova eruptions in the past, and that at least some classical novae become dwarf novae long after their nova thermonuclear outbursts. The current size of the shell, its known distance, and the largest observed nova ejection velocity set a lower limit to the time since Z Cam's last outburst of 220 years. The radius of the brightest part of Z Cam's shell is currently {approx}880 arcsec. No expansion of the radius of the brightest part of the ejecta was detected, with an upper limit of {<=}0.17 arcsec yr{sup -1}. This suggests that the last Z Cam eruption occurred {>=}5000 years ago. However, including the important effect of deceleration as the ejecta sweeps up interstellar matter in its snowplow phase reduces the lower limit to 1300 years. This is the first strong test of the prediction of nova thermonuclear runaway theory that the interoutburst times of classical novae are longer than 1000 years. The intriguing suggestion that Z Cam was a bright nova, recorded by Chinese imperial astrologers in October-November 77 B.C.E., is consistent with our measurements. If Z Cam was indeed the nova of 77 B.C.E. we predict that its ejecta are currently expanding at 85 km s{sup -1}, or 0.11 arcsec yr{sup -1}. Detection and measurement of this rate of expansion should be possible in just a few years.

Shara, Michael M.; Mizusawa, Trisha; Zurek, David [Department of Astrophysics, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024-5192 (United States); Martin, Christopher D.; Neill, James D. [Department of Physics, Math and Astronomy, California Institute of Technology, 1200 East California Boulevard, Mail Code 405-47, Pasadena, CA 91125 (United States); Seibert, Mark [Observatories of the Carnegie Institution of Washington, 813 Santa Barbara Street, Pasadena, CA 91101 (United States)

2012-09-10T23:59:59.000Z

108

E-Print Network 3.0 - adipocitocinas uma nova Sample Search Results  

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

INTERNET Equipa do IST sugere nova forma de ... Source: Instituto de Sistemas e Robotica - Polo de Lisboa (Institute for Systems and Robotics, Lisbon pole) Portugal...

109

E-Print Network 3.0 - adalimumab uma nova Sample Search Results  

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

INTERNET Equipa do IST sugere nova forma de ... Source: Instituto de Sistemas e Robotica - Polo de Lisboa (Institute for Systems and Robotics, Lisbon pole) Portugal...

110

E-Print Network 3.0 - antarctica novas idades Sample Search Results  

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

escrita e o desenvolvimento de novas competncias Source: Instituto de Sistemas e Robotica - Polo de Lisboa (Institute for Systems and Robotics, Lisbon pole) Portugal...

111

LABORATORY ANALYSIS OF PRESOLAR SILICATE STARDUST FROM A NOVA  

SciTech Connect (OSTI)

We report the major element as well as the oxygen, magnesium, and silicon isotope composition of a unique presolar silicate grain found in the fine-grained fraction of the Antarctic CR2 chondrite Graves Nunataks 95229. The grain is characterized by an extremely high {sup 17}O/{sup 16}O ratio (6.3 {+-} 0.2 Multiplication-Sign 10{sup -3}) relative to solar values, whereas its {sup 18}O/{sup 16}O ratio is solar within measurement uncertainty. It also shows enrichments in {sup 25,26}Mg and a significant excess in {sup 30}Si relative to solar system compositions, with {delta}{sup 25}Mg = 79 {+-} 21 per mille , {delta}{sup 26}Mg = 70 {+-} 20 per mille , and {delta}{sup 30}Si = 379 {+-} 92 per mille . This isotopic composition is consistent with an origin in the ejecta of a {approx}1.3-1.4 M{sub Sun} ONe nova with large contributions of material from a main-sequence companion star of roughly solar metallicity. However, many details of the stellar source remain undetermined, owing to the uncertainties of current nova nucleosynthesis models. Auger electron spectroscopic analyses identify O, Mg, Si, and Fe as the grain's major constituents. Its (Mg+Fe)/Si atomic ratios are lower than that of olivine and correspond on average to Fe-Mg-pyroxene. A complex texture and heterogeneous major element distribution within the grain attest to condensation under non-equilibrium conditions, which is consistent with the proposed nova origin.

Leitner, J.; Kodolanyi, J.; Hoppe, P. [Max Planck Institute for Chemistry, Particle Chemistry Department, Hahn-Meitner-Weg 1, D-55128 Mainz (Germany); Floss, C., E-mail: jan.leitner@mpic.de [Laboratory for Space Sciences and Physics Department, Washington University, One Brookings Drive, St. Louis, MO 63130 (United States)

2012-08-01T23:59:59.000Z

112

Petra Nova - W.A. Parish Project | Department of Energy  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of Energy Power.pdf11-161-LNG |September 15, 2010Energy6 Frontera STAT.Paul L.3 AgencyEnergyB.Petra Nova

113

NOVA NERSC's Online VASP Application Annette Greiner Shreyas Cholia  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements of Women |hits 21Species. |RPSEA FinalNOTICE OF981NOVA

114

Advances in Sustainable Petroleum Engineering Science ISSN 1937-7991 Volume 2, Number 3 2011 Nova Science Publishers, Inc.  

E-Print Network [OSTI]

Advances in Sustainable Petroleum Engineering Science ISSN 1937-7991 Volume 2, Number 3 © 2011 Nova

Hossain, M. Enamul

115

Direct measurement of the $^{18}F(p,\\alpha)^{15}O$ reaction for application to nova gamma-ray emission  

E-Print Network [OSTI]

Direct measurement of the $^{18}F(p,\\alpha)^{15}O$ reaction for application to nova gamma-ray emission

De Srville, N; Leleux, P; Coc, A; Kiener, J; Lefebvre-Schuhl, A; Tatischeff, V; Descouvemont, P; Figuera, P; Hammache, F; Achouri, L; Orr, N; Stefan, I; Casarejos, E; Davinson, T; Robertson, D; Laird, A M; Fox, S P; Mumby-Croft, P; Vaughan, K

2006-01-01T23:59:59.000Z

116

A search for radioactive 26Al in the nova-like variable V4332 Sagittarii  

E-Print Network [OSTI]

We have searched for the important radioactive isotope 26Al in the nova-like source V4332 Sgr. Recent results from gamma ray astronomy show that there is pervasive emission of the 1.809 MeV gamma ray photon, arising from the decay of 26Al to 26Mg, from all over the galactic plane. Though the sites from where this emission originates are not clearly established, novae are believed to be an important contributing source. In this context, V4332 Sgr presented a rare opportunity to observationally investigate whether novae or novae-like sources synthesize 26Al and to what extent. Strong AlO bands in the near-IR have been reported in this object recently. As molecular bands of different isotopic compositions are readily resolved spectroscopically (e.g. 12CO and 13CO), it was thought that the components of AlO associated with 26Al and stable 27Al could be detected as separate bands. Our spectra indicate that there is no strong presence of 26Al in V4332 Sgr. A reliable upper limit of 0.10 for the 26Al/27Al ratio is determined which constitutes the first observational constraint for this ratio in a potential 26Al producing source. While V4332 Sgr is not a typical nova, its outburst amplitude and light-curve behaviour bear close similarity to that of novae. Hence, although the results from V4332 Sgr cannot be directly extended to novae in general, the limit on the observed 26Al/27Al ratio could be a useful input in constraining rather uncertain nucleosynthesis models for the production of 26Al in novae/novae-like sources. By comparing the observed 26Al/27Al ratio in V4332 Sgr with that expected in classical novae it appears unlikely that the progenitor of V4332 Sgr is an Oxygen-Neon-Magnesium white dwarf.

D. P. K. Banerjee; N. M. Ashok; O. Launila; C. J. Davis; W. P. Varricatt

2004-06-21T23:59:59.000Z

117

The {sup 30}P(p, ?){sup 31}S reaction in classical novae: progress and prospects  

SciTech Connect (OSTI)

The unknown thermonuclear rate of the {sup 30}P(p, ?){sup 31}S reaction at classical-nova temperatures currently prohibits the accurate modeling of nova nucleosynthesis in the A ? 30 region. This is hindering the calibration of nova thermometers based on observed O/S, S/Al, O/P, and P/Al abundance ratios in nova ejecta, the calibration of a meter to probe mixing at the core-envelope interface in novae based on the observed Si/H abundance ratio, and the identification of candidate pre-solar nova grains found in primitive meteorites based on laboratory measurements of their {sup 30}Si/{sup 28}Si isotopic ratios. Each of these diagnostics could address key questions in our understanding of classical novae if the {sup 30}P(p, ?){sup 31}S rate were known. We review progress on the determination of the {sup 30}P(p, ?){sup 31}S rate leading to a critical assessment of current interpretations of published data and prospects for future work.

Wrede, C., E-mail: wrede@nscl.msu.edu [Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States)

2014-04-15T23:59:59.000Z

118

Near Infrared Observations of the novae V2491 Cygni and V597 Puppis  

E-Print Network [OSTI]

We present results obtained from near-infrared JHK spectroscopic observations of novae V2491 Cyg and V597 Pup in the early declining phases of their 2007 and 2008 outbursts respectively. In both objects, the spectra displayed emission lines of HI, OI, HeI and NI. In V597 Pup, the HeI lines were found to strengthen rapidly with time. Based on the observed spectral characteristics, both objects are classified as He/N novae. We have investigated the possibility of V2491 Cyg being a recurrent nova as has been suggested. By studying the temporal evolution of the line widths in V2491 Cyg it appears unlikely that the binary companion is a giant star with heavy wind as in recurrent novae of the RS Oph type. Significant deviations from that of recombination case B conditions are observed in the strengths of the HI lines. This indicates that the HI lines, in both novae, are optically thick during the span of our observations. The slope of the continuum spectra in both cases was found to have a \\lambda^-(3-3.5) dependence which deviates from a Rayleigh-Jeans spectral distribution. Both novae were detected in the post-outburst super-soft X-ray phase; V2491 Cyg being very bright in X-rays has been the target of several observations. We discuss and correlate our infrared observations with the observed X-ray properties of these novae.

Sachindra Naik; D. P. K. Banerjee; N. M. Ashok

2008-12-22T23:59:59.000Z

119

NOvA (Fermilab E929) Official Plots and Figures  

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

The NOvA collaboration, consisting of 180 researchers across 28 institutions and managed by the Fermi National Accelerator Laboratory (FNAL), is developing instruments for a neutrino-focused experiment that will attempt to answer three fundamental questions in neutrino physics: 1) Can we observe the oscillation of muon neutrinos to electron neutrinos; 2) What is the ordering of the neutrino masses; and 3) What is the symmetry between matter and antimatter? The collaboration makes various data plots and figures available. These are grouped under five headings, with brief descriptions included for each individual figure: Neutrino Spectra, Detector Overview, Theta12 Mass Hierarchy CP phase, Theta 23 Delta Msqr23, and NuSterile.

120

Nova DAQ, System Architecture, Data Combiner and Timing System  

SciTech Connect (OSTI)

NOvA (E929) is a long baseline experiment that will search for neutrino oscillations. There will be one detector near the beam source at Fermilab, and one detector in northern Minnesota. The DAQ system for the far detector collects over-threshold hits from over 450,000 channels of scintillator readouts, sorts the time-stamped data packets and archives selected time periods of data for transmission and processing. While a simple point-to-point protocol is used for the first level of data collection, Ethernet was chosen as the fabric for the rest of the DAQ. The packet time-stamp and overall system synchronization is based on two common-view GPS trained clock oscillators, one at each site. The present design cost-effectively satisfies the experiment's moderate speed and data volume requirements.

Biery, K.A.; Cooper, R.G.; Foulkes, S.C.; Guglielmo, G.M.; Haynes, B.W.; Kwarciany, R.; Pavlicek, F.V.; Piccoli, L.P.; Votava, M.E.V.; /Fermilab

2007-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

NOVA-NREL Optimal Vehicle Acquisition Analysis (Brochure)  

SciTech Connect (OSTI)

Federal fleet managers face unique challenges in accomplishing their mission - meeting agency transportation needs while complying with Federal goals and mandates. Included in these challenges are a variety of statutory requirements, executive orders, and internal goals and objectives that typically focus on petroleum consumption and greenhouse gas (GHG) emissions reductions, alternative fuel vehicle (AFV) acquisitions, and alternative fuel use increases. Given the large number of mandates affecting Federal fleets and the challenges faced by all fleet managers in executing day-to-day operations, a primary challenge for agencies and other organizations is ensuring that they are as efficient as possible in using constrained fleet budgets. An NREL Optimal Vehicle Acquisition (NOVA) analysis makes use of a mathematical model with a variety of fleet-related data to create an optimal vehicle acquisition strategy for a given goal, such as petroleum or GHG reduction. The analysis can helps fleets develop a vehicle acquisition strategy that maximizes petroleum and greenhouse gas reductions.

Blakley, H.

2011-03-01T23:59:59.000Z

122

Peace Corps / Environment Environment Volunteers  

E-Print Network [OSTI]

Peace Corps / Environment Environment Volunteers Environmental damage can have enormous choices about how to best protect and preserve the local environment. Programs and Sample Projects and communications technology, agriculture, and environment. We are looking for applicants with a variety of skills

Kaminsky, Werner

123

Pulsed power supply for Nova Upgrade. Final report, August 1, 1991 to March 31, 1992  

SciTech Connect (OSTI)

This report describes work carried out at the Center for Electromechanics at The University of Texas at Austin (CEM-UT). A baseline design of the Nova Upgrade has been completed by Lawrence Livermore National Laboratory. The Nova Upgrade is an 18 beamline Nd: glass laser design utilizing fully relayed 4x4 30 cm aperture segmented optical components. The laser thus consists of 288 independent beamlets nominally producing 1.5 to 2.0 MJ of 0.35 {mu}m light in a 3 to 5 ns pulse. The laser design is extremely flexible and will allow a wide range of pulses to irradiate ICF targets. This facility will demonstrate ignition/gain and the scientific feasibility of ICF for energy and defense applications. The pulsed power requirements for the Nova Upgrade are given. CEM-UT was contracted to study and develop a design for a homopolar generator/inductor (HPG/inductor) opening switch system which would satisfy the pulsed power supply requirements of the Nova Upgrade. The Nd:glass laser amplifiers used in the Nova Upgrade will be powered by light from xenon flashlamps. The pulsed power supply for the Nova Upgrade powers the xenon flashlamps. This design and study was for a power supply to drive flashlamps.

Bacon, J.L.; Kajs, J.P.; Walls, A.; Weldon, W.F.; Zowarka, R.C. [Univ. of Texas, Austin, TX (US). Center for Electromechanics] [Univ. of Texas, Austin, TX (US). Center for Electromechanics

1992-12-31T23:59:59.000Z

124

SWIFT X-RAY AND ULTRAVIOLET MONITORING OF THE CLASSICAL NOVA V458 VUL (NOVA VUL 2007)  

SciTech Connect (OSTI)

We describe the highly variable X-ray and UV emission of V458 Vul (Nova Vul 2007), observed by Swift between 1 and 422 days after outburst. Initially bright only in the UV, V458 Vul became a variable hard X-ray source due to optically thin thermal emission at kT = 0.64 keV with an X-ray band unabsorbed luminosity of 2.3 x 10{sup 34} erg s{sup -1} during days 71-140. The X-ray spectrum at this time requires a low Fe abundance (0.2{sup +0.3} {sub -0.1} solar), consistent with a Suzaku measurement around the same time. On day 315 we find a new X-ray spectral component which can be described by a blackbody with temperature of kT = 23{sup +9} {sub -5} eV, while the previous hard X-ray component has declined by a factor of 3.8. The spectrum of this soft X-ray component resembles those typically seen in the class of supersoft sources (SSS) which suggests that the nova ejecta were starting to clear and/or that the white dwarf photosphere is shrinking to the point at which its thermal emission reaches into the X-ray band. We find a high degree of variability in the soft component with a flare rising by an order of magnitude in count rate in 0.2 days. In the following observations on days 342.4-383.6, the soft component was not seen, only to emerge again on day 397. The hard component continued to evolve, and we found an anticorrelation between the hard X-ray emission and the UV emission, yielding a Spearman rank probability of 97%. After day 397, the hard component was still present, was variable, and continued to fade at an extremely slow rate but could not be analyzed owing to pile-up contamination from the bright SSS component.

Ness, J.-U. [European Space Astronomy Centre, P.O. Box 78, 28691 Villanueva de la Canada, Madrid (Spain); Drake, J. J. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Beardmore, A. P.; Evans, P. A.; Osborne, J. P.; Page, K. L. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Boyd, D. [BAA VSS, 5 Silver Lane, West Challow, Wantage, OX12 9TX (United Kingdom); Bode, M. F. [Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD (United Kingdom); Brady, S. [AAVSO, 5 Melba Drive, Hudson, NH 03051 (United States); Gaensicke, B. T.; Steeghs, D. [Department of Physics, University of Warwick, Coventry CV4 7AL (United Kingdom); Kitamoto, S.; Takei, D. [Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501 (Japan); Knigge, C. [School of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ (United Kingdom); Miller, I. [BAA VSS, Furzehill House, Ilston, Swansea SA2 7LE (United Kingdom); Rodriguez-Gil, P. [Isaac Newton Group, PO Ap. de Correos 321, 38700 Sta. Cruz de la Palma (Spain); Schwarz, G. [Department of Geology and Astronomy, West Chester University, West Chester, PA 19383 (United States); Staels, B. [CBA Flanders, Alan Guth Observatory, Koningshofbaan 51, Hofstade, Aalst (Belgium); Tsujimoto, M. [Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802 (United States); Wesson, R. [Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)], E-mail: juness@sciops.esa.int (and others)

2009-05-15T23:59:59.000Z

125

Near-Infrared Studies of V1280 Sco (Nova Scorpii 2007)  

E-Print Network [OSTI]

We present spectroscopic and photometric results of Nova V1280 Sco which was discovered in outburst in early 2007 February. The large number of spectra obtained of the object leads to one of the most extensive, near-infrared spectral studies of a classical nova. The spectra evolve from a P-Cygni phase to an emission-line phase and at a later stage is dominated by emission from the dust that formed in this nova. A detailed model is computed to identify and study characteristics of the spectral lines. Inferences from the model address the vexing question of which novae have the ability to form dust. It is demonstrated, and strikingly corroborated with observations, that the presence of lines in the early spectra of low-ionization species like Na and Mg - indicative of low temperature conditions - appear to be reliable indicators that dust will form in the ejecta. It is theoretically expected that mass loss during a nova outburst is a sustained process. Spectroscopic evidence for such a sustained mass loss, obtained by tracing the evolution of a P-Cygni feature in the Brackett gamma line, is presented here allowing a lower limit of 25-27 days to be set for the mass-loss duration. Photometric data recording the nova's extended 12 day climb to peak brightness after discovery is used to establish an early fireball expansion and also show that the ejection began well before maximum brightness. The JHK light curves indicate the nova had a fairly strong second outburst around 100 days after the first.

Ramkrishna Das; Dipankar Banerjee; Nagarhalli Ashok; Olivier Chesneau

2008-09-26T23:59:59.000Z

126

Isotopic 32S/33S ratio as a diagnostic of presolar grains from novae  

E-Print Network [OSTI]

Measurements of sulphur isotopes in presolar grains can help to identify the astrophysical sites in which these grains were formed. A more precise thermonuclear rate of the 33S(p,gamma)34Cl reaction is required, however, to assess the diagnostic ability of sulphur isotopic ratios. We have studied the 33S(3He,d)34Cl proton-transfer reaction at 25 MeV using a high-resolution quadrupole-dipole-dipole-dipole magnetic spectrograph. Deuteron spectra were measured at ten scattering angles between 10 and 55 degrees. Twenty-four levels in 34Cl over Ex = 4.6 - 5.9 MeV were observed, including three levels for the first time. Proton spectroscopic factors were extracted for the first time for levels above the 33S+p threshold, spanning the energy range required for calculations of the thermonuclear 33S(p,gamma)34Cl rate in classical nova explosions. We have determined a new 33S(p,gamma)34Cl rate using a Monte Carlo method and have performed new hydrodynamic nova simulations to determine the impact on nova nucleosynthesis of remaining nuclear physics uncertainties in the reaction rate. We find that these uncertainties lead to a factor of less than 5 variation in the 33S(p,gamma)34Cl rate over typical nova peak temperatures, and variation in the ejected nova yields of S--Ca isotopes by less than 20%. In particular, the predicted 32S/33S ratio is 110 - 130 for the nova model considered, compared to 110 - 440 with previous rate uncertainties. As recent type II supernova models predict ratios of 130 - 200, the 32S/33S ratio may be used to distinguish between grains of nova and supernova origin.

A. Parikh; K. Wimmer; T. Faestermann; R. Hertenberger; J. Jose; H. -F. Wirth; C. Hinke; R. Krucken; D. Seiler; K. Steiger; K. Straub

2014-09-01T23:59:59.000Z

127

Dwarf Novae in the OGLE Data. II. Forty New Dwarf Novae in the OGLE-III Galactic Disk Fields  

E-Print Network [OSTI]

We report the discovery of forty erupting cataclysmic variable stars in the OGLE-III Galactic disk fields. Among them seventeen objects are of U Gem type, four of Z Cam type. Nineteen of the stars show outbursts and superoutbursts typical for SU UMa-type dwarf novae. In the case of five stars we were able to estimate their supercycle lengths. The obtained lengths are in the range 20-90 d, generally between the typical SU UMa-type variables and a few objects classified as the ER UMa-type variables. Since there is no significant difference between the two types but a higher mass-transfer rate resulting in more frequent outbursts and superoutbursts in the ER UMa-type stars, we propose to discard this type as a separate class of variables. We note that in one of the SU UMa-type stars, OGLE-GD-DN-039, we found a negative supercycle period change, in contrast to other active systems of this type. Two of the new OGLE objects showed long-duration WZ Sge-like superoutbursts followed by a sequence of echo outbursts. Al...

Mroz, P; Poleski, R; Udalski, A; Soszynski, I; Szymanski, M K; Kubiak, M; Pietrzynski, G; Wyrzykowski, L; Ulaczyk, K; Kozlowski, S; Skowron, J

2013-01-01T23:59:59.000Z

128

Classical Novae as a Probe of the Cataclysmic Variable Population  

E-Print Network [OSTI]

Classical Novae (CNe) are the brightest manifestation of mass transfer onto a white dwarf in a cataclysmic variable (CV). As such, they are probes of the mass transfer rate, Mdot, and WD mass, Mwd, in these interacting binaries. Our calculations of the dependence of the CN ignition mass, Mign, on Mdot and Mwd yields the recurrence times of these explosions. We show that the observed CNe orbital period distribution is consistent with the interrupted magnetic braking evolutionary scenario, where at orbital periods Porb > 3 hr mass transfer is driven by angular momentum loss via a wind from the companion star and at Porb < 3 hr by gravitational radiation. About 50% of CNe occur in binaries accreting at Mdot ~= 10^{-9} Msun/yr with Porb = 3-4 hr, with the remaining 50% split evenly between Porb longer (higher Mdot) and shorter (lower Mdot) than this. This resolution of the relative contribution to the CN rate from different CVs tells us that 3(9)x10^5 CVs with WD mass 1.0(0.6)Msun are needed to produce one CN per year. Using the K-band specific CN rate measured in external galaxies, we find a CV birthrate of 2(4)x10^{-4}/yr per 10^{10}Lsun,K, very similar to the luminosity specific Type Ia supernova rate in elliptical galaxies. Likewise, we predict that there should be 60-180 CVs for every 10^6Lsun,K in an old stellar population, similar to the number of X-ray identified CVs in the globular cluster 47 Tuc, showing no overabundance relative to the field. Using a two-component steady state model of CV evolution we show that the fraction of CVs which are magnetic (22%) implies a birthrate of 8% relative to non-magnetic CVs, similar to the fraction of strongly magnetic field WDs. (abridged)

Dean M. Townsley; Lars Bildsten

2005-03-24T23:59:59.000Z

129

sustainable environment  

E-Print Network [OSTI]

sustainable resource management environment fisheries aquaculture Cefas capability statement #12 that they can manage their environments and resources in a responsible, effective and sustainable manner. Our costs · Understand, assess and develop opportunities in the short, medium and long-term · Build

130

The Effects of Thermonuclear Reaction Rate Variations on Nova Nucleosynthesis: A Sensitivity Study  

E-Print Network [OSTI]

We investigate the effects of thermonuclear reaction rate uncertainties on nova nucleosynthesis. One-zone nucleosynthesis calculations have been performed by adopting temperature-density-time profiles of the hottest hydrogen-burning zone (i.e., the region in which most of the nucleosynthesis takes place). We obtain our profiles from 7 different, recently published, hydrodynamic nova simulations covering peak temperatures in the range from Tpeak=0.145-0.418 GK. For each of these profiles, we individually varied the rates of 175 reactions within their associated errors and analyzed the resulting abundance changes of 142 isotopes in the mass range below A=40. In total, we performed 7350 nuclear reaction network calculations. We use the most recent thermonuclear reaction rate evaluations for the mass ranges A=1-20 and A=20-40. For the theoretical astrophysicist, our results indicate the extent to which nova nucleosynthesis calculations depend on presently uncertain nuclear physics input, while for the experimental nuclear physicist our results represent at least a qualitative guide for future measurements at stable and radioactive ion beam facilities. We find that present reaction rate estimates are reliable for predictions of Li, Be, C and N abundances in nova nucleosynthesis. However, rate uncertainties of several reactions have to be reduced significantly in order to predict more reliable O, F, Ne, Na, Mg, Al, Si, S, Cl and Ar abundances. Results are presented in tabular form for each adopted nova simulation.

Christian Iliadis; Art Champagne; Jordi Jose; Sumner Starrfield; Paul Tupper

2002-06-03T23:59:59.000Z

131

X-ray Study of Rekindled Accretion in the Classical Nova V2491 Cygni  

E-Print Network [OSTI]

We conducted an X-ray spectroscopic study of the classical nova V2491 Cygni using our target-of-opportunity observation data with the Suzaku and XMM-Newton satellites as well as archived data with the Swift satellite. Medium-resolution (R~10-50) spectra were obtained using the X-ray CCD spectrometers at several post-nova epochs on days 9, 29, 40, 50, and 60-150 in addition to a pre-nova interval between days -322 and -100 all relative to the time when the classical nova was spotted. We found remarkable changes in the time series of the spectra: (a) In the pre-nova phase and on day 9, the 6.7 keV emission line from Fe XXV was significantly detected. (b) On day 29, no such emission line was found. (c) On day 40, the 6.7 keV emission line emerged again. (d) On days 50 and 60-150, three emission lines at 6.4, 6.7, and 7.0 keV respectively from quasi-neutral Fe, Fe XXV, and Fe XXVI were found. Statistically significant changes of the Fe K line intensities were confirmed between day 29 and 50. Based on these phenom...

Takei, D; Tsujimoto, M; Kitamoto, S; Drake, J J; Osborne, J P; Takahashi, H; Kinugasa, K

2011-01-01T23:59:59.000Z

132

On the Weddell-Scotia Confluence and the Scotia Front  

E-Print Network [OSTI]

to define its spatial limits. WSC A' is I'ound only in the western WSC; transition waters range from Drake Passage to the Greenwich Meridian. ACKNOWLEDGEMENTS I am indebted to Dr. Worth D. Nowlin, Jr. f' or providing me with the research topic... and funding that have enabled me to pursue a graduate degree in oceanography. I particularly appreciate his patience and frank advice; his timely recommendation guided me to a more suitable career. I am grateful to Dr. Thomas Whitworth III for his...

Smith, Stephen Gregory

1989-01-01T23:59:59.000Z

133

The Impact of Nuclear Reaction Rate Uncertainties on Evolutionary Studies of the Nova Outburst  

E-Print Network [OSTI]

The observable consequences of a nova outburst depend sensitively on the details of the thermonuclear runaway which initiates the outburst. One of the more important sources of uncertainty is the nuclear reaction data used as input for the evolutionary calculations. A recent paper by Starrfield, Truran, Wiescher, & Sparks (1998) has demonstrated that changes in the reaction rate library used within a nova simulation have significant effects, not just on the production of individual isotopes (which can change by an order of magnitude), but on global observables such as the peak luminosity and the amount of mass ejected. We present preliminary results of systematic analyses of the impact of reaction rate uncertainties on nova nucleosynthesis.

W. Raphael Hix; Michael S. Smith; Anthony Mezzacappa; Sumner Starrfield; Donald L. Smith

2000-01-27T23:59:59.000Z

134

Construction of AC Motor Controllers for NOvA Experiment Upgrades  

SciTech Connect (OSTI)

I have been constructing Alternating Current (AC) motor controllers for manipulation of particle beam detectors. The capability and reliability of these motor controllers are essential to the Laboratory's mission of accurate analysis of the particle beam's position. The device is moved in and out of the beam's path by the motor controller followed by the Neutrinos at the Main Injector Off-Axis {nu}{sub e} Appearance (NOvA) Experiment further down the beam pipe. In total, I built and tested ten ac motor controllers for new beam operations in the NOvA experiment. These units will prove to be durable and provide extremely accurate beam placement for NOvA Experiment far into the future.

Cooley, Patrick; /Fermilab; ,

2011-08-04T23:59:59.000Z

135

Design and implementation of a financial planning and tracking system for the Nova Project  

SciTech Connect (OSTI)

The Nova project is a 185 million dollar DOE funded project to build an experimental facility to demonstrate the thermonuclear ignition of laser fusion targets. This paper describes the design and implementation considerations for the project's computerized performance measurement financial planning and tracking system and critiques its actual operation.

Holcomb, F.

1982-01-01T23:59:59.000Z

136

Engineering design of the Nova Laser Facility for inertial-confinement fusion  

SciTech Connect (OSTI)

The design of the Nova Laser Facility for inertial confinement fusion experiments at Lawrence Livermore National Laboratory is presented from an engineering perspective. Emphasis is placed upon design-to-performance requirements as they impact the various subsystems that comprise this complex experimental facility.

Simmons, W W; Godwin, R O; Hurley, C A; Wallerstein, E. P.; Whitham, K.; Murray, J. E.; Bliss, E. S.; Ozarski, R. G.; Summers, M. A.; Rienecker, F.; Gritton, D. G.; Holloway, F. W.; Suski, G. J.; Severyn, J. R.

1982-01-25T23:59:59.000Z

137

The mass of the white dwarf in the old nova BT Mon  

E-Print Network [OSTI]

We present spectrophotometry of the eclipsing old nova BT Mon (Nova Mon 1939). By detecting weak absorption features from the secondary star, we find its radial velocity semi-amplitude to be K_R = 205+/-5 km/s and its rotational velocity to be vsin i = 138+/-5 km/s. We also measure the radial velocity semi-amplitude of the primary star to be K_R = 170+/-10 km/s. From these parameters we obtain a mass of 1.04+/-0.06 M_sun for the white dwarf primary star and a mass of 0.87+/-0.06 M_sun for the G8V secondary star. The inclination of the system is found to be 82.2+/-3.2 deg and we estimate that the system lies at a distance of 1700+/-300pc. The high mass of the white dwarf and our finding that BT Mon was probably a fast nova together constitute a new piece of evidence in favour of the thermonuclear runaway model of classical nova outbursts. The emission lines are single peaked throughout the orbital cycle, showing absorption around phase 0.5, high velocity S-wave components and large phase offsets in their radial velocity curves. In each of these respects, BT Mon is similar to the SW Sex stars. We also find quasi-periodic flaring in the trailed spectra, which makes BT Mon a candidate intermediate polar.

D. A. Smith; V. S. Dhillon; T. R. Marsh

1997-09-22T23:59:59.000Z

138

Simulations of the symbiotic recurrent nova V407 Cyg. I. Accretion and shock evolutions  

E-Print Network [OSTI]

The shock interaction and evolution of nova ejecta with a wind from a red giant star in a symbiotic binary system are investigated via three-dimensional hydrodynamics simulations. We specifically model the March 2010 outburst of the symbiotic recurrent nova V407~Cygni from the quiescent phase to its eruption phase. The circumstellar density enhancement due to wind-white dwarf interaction is studied in detail. It is found that the density-enhancement efficiency depends on the ratio of the orbital speed to the red giant wind speed. Unlike another recurrent nova, RS~Ophiuchi, we do not observe a strong disk-like density enhancement, but instead observe an aspherical density distribution with $\\sim 20\\%$ higher density in the equatorial plane than at the poles. To model the 2010 outburst, we consider several physical parameters, including the red giant mass loss rate, nova eruption energy, and ejecta mass. A detailed study of the shock interaction and evolution reveals that the interaction of shocks with the red ...

Pan, Kuo-Chuan; Taam, Ronald E

2015-01-01T23:59:59.000Z

139

Unveiling the nature of red novae cool explosions using archive plate photometry  

E-Print Network [OSTI]

Based on archive photographic photometry and recent CCD photometric data for red novae V4332 Sgr and V838 Mon, we established their stellar composition, exploded components, and the nature of explosions. Low temperature in the outburst maximum is due to quasi-adiabatic expansion of a massive stellar envelope after the central energy surge preceded the outburst.

Goranskij, Vitaly; Zharova, Alla; Shugarov, Sergei; Barsukova, Elena; Kroll, Peter

2015-01-01T23:59:59.000Z

140

Submitted to ApJ Letters, June 29, 2005 Are Presolar Silicon Carbide Grains from Novae Actually from Supernovae?  

E-Print Network [OSTI]

Submitted to ApJ Letters, June 29, 2005 Are Presolar Silicon Carbide Grains from Novae Actually stellar nucleosynthesis and mixing. The best-studied presolar phase, silicon carbide (SiC), exhibits

Nittler, Larry R.

Note: This page contains sample records for the topic "nova scotia environment" 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

Underground study of the 17 O(p,? )18F reaction at Gamow energies for classical novae  

E-Print Network [OSTI]

Classical novae are explained as thermonuclear explosions on the surface of white dwarf stars accreting hydrogen-rich material from less evolved companions in binary star systems. These events occur frequently within our ...

Scott, David Andrew

2014-11-27T23:59:59.000Z

142

Community, Environment  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation InInformationCenterResearchCASLNanoporous Materials |CommunityEnvironment

143

Gamma Ray Bursts within the Quark-Nova scenario: Precursor, prompt and afterglow phases  

E-Print Network [OSTI]

By exploring the dynamical and thermal evolution of the iron-rich ejecta in a Quark-Nova explosion we find that the ejecta breaks up into multiple subjets. If the quark-nova occurs inside a collapsar, the interaction between these subjets and collapsar envelope, in the case of a failed and successful supernova, leads to features indicative of those observed in Gamma Ray Bursts. These features include: (i) precursor activity (optical, X-ray, gamma-ray), (ii) prompt gamma-ray emission, and (iii) afterglow emission. We discuss SN-less long duration GRBs, short hard GRBs (including association and non-association with star forming regions), dark GRBs, as well as the energetic X-ray flares detected in Swift GRBs in our model.

Ouyed, Rachid; Niebergal, Brian; Staff, Jan

2007-01-01T23:59:59.000Z

144

Genetic and environmental factors affecting growth and reproduction characters of Morada Nova sheep in Northeastern Brazil  

E-Print Network [OSTI]

concern in sheep produc- tion in Northeast Brazil are meat and skins. Despite the overwhelming social and economic importance of sheep production in Northeast Brazil, it is still practiced, on the average, through a very extensive and traditional... in the systems employed in that area of Brazil. This study involved an analysis of body weight records up to 12 months age and records of reproduction from a Morada Nova sheep flock maintained under grazing pasture conditions from 1979 to 1983 at the Fazenda...

Fernandes, Antonio Amaury Oria

1985-01-01T23:59:59.000Z

145

The enigmatic outburst of V445 Puppis - a possible Helium nova?  

E-Print Network [OSTI]

JHK spectroscopic and photometric observations are reported for the enigmatic, nova-like, variable V445 Puppis which erupted at the end of 2000. The near-IR spectra are hydrogen-deficient and unusually rich in CI lines. The important CI lines are found to be positioned at 1.133, 1.166, 1.175, 1.189, 1.26 and 1.689 microns. Model calculations for the CI lines are done to make the identification of the lines secure. Photometric data, taken on January 2.90 UT, 2001 shortly after the outburst, show the formation of an optically thin dust shell around V445 Puppis. The temperature and upper limit for the mass of the dust shell are estimated to be 1800K and M(dust) ~ 1oe-9 M(sun) respectively . A subsequent episode of massive dust formation - indicated by the observed, deep visual dimming - is also seen in JHK images of early November 2001. V445 Puppis has shown two unusual properties for a nova i) the hydrogen-deficiency and He/C enrichment of the object as seen from optical and IR data and ii) synchrotron radio emission which was detected nearly a year after it's outburst by other workers. The strange nature of the object is discussed and it is shown that it is difficult to place it in the known categories of eruptive variables viz. novae (classical, recurrent or symbiotic); born-again AGB stars; the new class of eruptive variables like V838 Mon; and RCB/HdC stars. Tentative evidence for an accretion disk and binarity of the V445 Puppis system is presented. It is debated whether V445 Puppis is a rare Helium nova or an unique object.

N. M. Ashok; D. P. K. Banerjee

2003-07-16T23:59:59.000Z

146

Nova Virgem :b the story of a nineteenth-century Brazilian slave smuggler  

E-Print Network [OSTI]

HISTORICAL BACKGROUND . Thc Eighteenth Century Slave frade and British Domestic Abolition A "Judicious Mixture of Bullying 'md Bribery' Brazilian Independence and the Abolition of the Slave Trade III LEGALITIES OF ILLEGALITY British Presence on thc... , . . . 27 . . . . . 29 . . . . . 33 . . . . . 36 CHAPTER Page IV THE NOVA VIRGFM . . . 41 Background: The Pre-Ninetccnth Century Slaver. . . The Illegal Era Slave Ship Arqucacgo or Lotaqao: How Big Was this Ship? . . . . Thc Hull of the Nr...

Miller, Mason Daniel

2001-01-01T23:59:59.000Z

147

Beacons In the Dark: Using Novae and Supernovae to Detect Dwarf Galaxies in the Local Universe  

E-Print Network [OSTI]

We propose that luminous transients, including novae and supernovae, can be used to detect the faintest galaxies in the universe. Beyond a few Mpc, dwarf galaxies with stellar masses $<10^6 M_{\\odot}$ will likely be too faint and/or too low in surface brightness to be directly detected in upcoming large area ground-based photometric surveys. However, single epoch LSST photometry will be able to detect novae to distances of $\\sim30$ Mpc and SNe to Gpc-scale distances. Depending on the form of the stellar mass-halo mass relation and the underlying star formation histories of low mass dwarfs, the expected nova rates will be a few to $\\sim100$ yr$^{-1}$ and the expected SN rates (including both type Ia and core-collapse) will be $\\sim10^2-10^4$ within the observable ($4\\pi$ sr) volume. The transient rate associated with intrahalo stars will be comparably large, but these transients will be located close to bright galaxies, in contrast to the dwarfs, which should trace the underlying large scale structure of th...

Conroy, Charlie

2015-01-01T23:59:59.000Z

148

Gamma-ray novae as probes of relativistic particle acceleration at non-relativistic shocks  

E-Print Network [OSTI]

The Fermi LAT discovery that classical novae produce >100 MeV gamma-rays establishes that shocks and relativistic particle acceleration are key features of these events. These shocks are likely to be radiative due to the high densities of the nova ejecta at early times coincident with the gamma-ray emission. Thermal X-rays radiated behind the shock are absorbed by neutral gas and reprocessed into optical emission, similar to Type IIn (interacting) supernovae. The ratio of gamma-ray and optical luminosities, L_gam/L_opt, thus sets a lower limit on the fraction of the shock power used to accelerate relativistic particles, e_nth. The measured values of L_gam/L_opt for two classical novae, V1324 Sco and V339 Del, constrains e_nth > 1e-2 and > 1e-3, respectively. Inverse Compton models for the gamma-ray emission are disfavored given the low electron acceleration efficiency, e_nth ~ 1e-4-1e-3, inferred from observations of Galactic cosmic rays and particle-in-cell (PIC) numerical simulations. Recent hybrid PIC simu...

Metzger, Brian D; Vurm, Indrek; Hascoet, Romain; Beloborodov, Andrei M; Chomiuk, Laura

2015-01-01T23:59:59.000Z

149

THE EXPANDING BIPOLAR SHELL OF THE HELIUM NOVA V445 PUPPIS  

SciTech Connect (OSTI)

From multi-epoch adaptive optics imaging and integral field unit spectroscopy, we report the discovery of an expanding and narrowly confined bipolar shell surrounding the helium nova V445 Puppis (Nova Puppis 2000). An equatorial dust disc obscures the nova remnant, and the outflow is characterized by a large polar outflow velocity of 6720 +- 650 km s{sup -1} and knots moving at even larger velocities of 8450 +- 570 km s{sup -1}. We derive an expansion parallax distance of 8.2 +- 0.5 kpc and deduce a pre-outburst luminosity of the underlying binary of log L/L{sub sun} = 4.34 +- 0.36. The derived luminosity suggests that V445 Puppis probably contains a massive white dwarf accreting at high rate from a helium star companion making it part of a population of binary stars that potentially lead to supernova Ia explosions due to accumulation of helium-rich material on the surface of a massive white dwarf.

Woudt, P. A.; Warner, B. [Department of Astronomy, University of Cape Town, Private Bag X3, Rondebosch 7701 (South Africa); Steeghs, D.; Marsh, T. R. [Department of Physics, University of Warwick, Coventry, CV4 7AL (United Kingdom); Karovska, M.; Roelofs, G. H. A. [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138-1516 (United States); Groot, P. J.; Nelemans, G. [Department of Astrophysics, Radboud University Nijmegen, P.O. Box 9010, 6500 GL, Nijmegen (Netherlands); Nagayama, T. [Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto 606-8502 (Japan); Smits, D. P. [Department of Mathematical Sciences, University of South Africa, UNISA, Pretoria 0003 (South Africa); O'Brien, T., E-mail: Patrick.Woudt@uct.ac.z [University of Manchester, Jodrell Bank Observatory, Macclesfield, Cheshire SK11 9DL (United Kingdom)

2009-11-20T23:59:59.000Z

150

Thermal radio emission from novae & symbiotics with the Square Kilometre Array  

E-Print Network [OSTI]

The thermal radio emission of novae during outburst enables us to derive fundamental quantities such as the ejected mass, kinetic energy, and density profile of the ejecta. Recent observations with newly-upgraded facilities such as the VLA and e-MERLIN are just beginning to reveal the incredibly complex processes of mass ejection in novae (ejections appear to often proceed in multiple phases and over prolonged timescales). Symbiotic stars can also exhibit outbursts, which are sometimes accompanied by the expulsion of material in jets. However, unlike novae, the long-term thermal radio emission of symbiotics originates in the wind of the giant secondary star, which is irradiated by the hot white dwarf. The effect of the white dwarf on the giant's wind is strongly time variable, and the physical mechanism driving these variations remains a mystery (possibilities include accretion instabilities and time-variable nuclear burning on the white dwarf's surface). The exquisite sensitivity of SKA1 will enable us to su...

O'Brien, Tim; Chomiuk, Laura; Ribeiro, Valerio; Bode, Michael; Sokoloski, Jennifer; Woudt, Patrick

2015-01-01T23:59:59.000Z

151

DYNAMICAL FRAGMENTATION OF THE T PYXIDIS NOVA SHELL DURING RECURRENT ERUPTIONS  

SciTech Connect (OSTI)

Hubble Space Telescope images of the ejecta surrounding the nova T Pyxidis resolve the emission into more than 2000 bright knots. We simulate the dynamical evolution of the ejecta from T Pyxidis during its multiple eruptions over the last 150 years using the adaptive mesh refinement code Ramses. We demonstrate that the observed knots are the result of Richtmyer-Meshkov gas dynamical instabilities (the equivalent of Rayleigh-Taylor instabilities in an accelerated medium). These instabilities are caused by the overrunning of the ejecta from the classical nova of 1866 by fast-moving ejecta from the six subsequent recurrent nova outbursts. Magnetic fields may play a role in determining knot scale and preventing their conductive evaporation. The model correctly predicts the observed expansion and dimming of the T Pyx ejecta as well as the knotty morphology. The model also predicts that deeper, high-resolution imagery will show filamentary structure connecting the knots. We show reprocessed Hubble Space Telescope imagery that shows the first hints of such a structure.

Toraskar, Jayashree; Mac Low, Mordecai-Mark; Shara, Michael M.; Zurek, David R., E-mail: toraskar@amnh.org, E-mail: mordecai@amnh.org, E-mail: mshara@amnh.org, E-mail: dzurek@amnh.org [Department of Astrophysics, American Museum of Natural History, 79th Street at Central Park West, New York, NY 10024-5192 (United States)

2013-05-01T23:59:59.000Z

152

The OGLE-II event sc5_2859 a Classical Nova outburst?  

E-Print Network [OSTI]

The OGLE-II event sc5_2859 was previously identified as the third longest microlensing event ever observed. Additional photometric observations from the EROS (Experience de Recherche d'Objets Sombres) survey and spectroscopic observations of the candidate star are used to test the microlensing hypothesis.The combined OGLE and EROS data provide a high quality coverage of the light curve. The colour of the sc5_2859 event is seen to change with time. A spectrum taken in 2003 exhibits a strong Halpha emission line. The additionnal data show that the OGLE-II sc5_2859 event is actually a classical nova outburst.

Afonso, C; Andersen, J; Ansari, R; Aubourg, E; Bareyre, P; Beaulieu, J P; Blanc, G; CSmith, M; Charlot, X; Coutures, C; De Kat, J; Ferlet, R; Fouqu, P; Glicenstein, J F; Goldman, B; Gould, A; Graff, D; Gros, M; Hamadache, C; Hassinski, J; Le Guillou, Laurent; Lesquoy, E; Loup, C; Magneville, C; Marquette, J B; Maurice, E; Maury, A; Milsztajn, A; Moniez, M; Palanque-Delabrouille, Nathalie; Perdereau, O; Prvt, L; Rahal, Y R; Rich, J; Spiro, M; Tisserand, P; Vidal-Madjar, A; Vigroux, L; Wagner, R M; Zylberajch, S

2006-01-01T23:59:59.000Z

153

Ecology and environment  

E-Print Network [OSTI]

Ecology and environment Essentials Courses MSci (Hons) in Ecology and Environment MSci (Hons) in Ecology and Environment (research placement) BSc (Hons) in Ecology and Environment Foundation year for UK for the MSci in Ecology and Environment (research placement): AAA Typical A level offer range for the other

Sussex, University of

154

Quasi-Coherent Oscillations in the Extreme Ultraviolet Flux of the Dwarf Nova SS Cygni  

E-Print Network [OSTI]

Quasi-coherent oscillations have been detected in the extreme ultraviolet flux of the dwarf nova SS Cygni during observations with the Extreme Ultraviolet Explorer satellite of the rise and plateau phases of an anomalous outburst in 1993 August and a normal outburst in 1994 June/July. On both occasions, the oscillation turned on during the rise to outburst and persisted throughout the observation. During the 1993 outburst, the period of the oscillation fell from 9.3 s to 7.5 s over an interval of 4.4 days; during the 1994 outburst, the period fell from 8.9 s to 7.19 s (the shortest period ever observed in SS Cyg, or any other dwarf nova) within less than a day, and then rose to 8.0 s over an interval of 8.0 days. For both outbursts, the period $P$ of the oscillation was observed to correlate with the 75--120 \\AA \\ count rate $I_{\\rm EUV}$ according to $P\\propto I_{\\rm EUV}^{-0.094}$. A magnetospheric model is considered to reproduce this variation. It is found that an effective high-order multipole field is required, and that the field strength at the surface of the white dwarf is 0.1--1 MG. Such a field strength is at the lower extreme of those measured or inferred for bona fide magnetic cataclysmic variables.

Christopher W. Mauche

1996-03-18T23:59:59.000Z

155

A near-infrared shock wave in the 2006 outburst of recurrent nova RS Ophiuchi  

E-Print Network [OSTI]

Near-infrared spectra are presented for the recent 2006 outburst of the recurrent nova RS Ophiuchi (RS Oph).We report the rare detection of an infrared shock wave as the nova ejecta plows into the pre-existing wind of the secondary in the RS Oph system consisting of a white dwarf (WD) primary and a red giant secondary. The evolution of the shock is traced through a free expansion stage to a decelerative phase. The behavior of the shock velocity with time is found to be broadly consistent with current shock models. The present observations also imply that the WD in the RS Oph system has a high mass indicating that it could be a potential SNIa candidate. We also discuss the results from a recent study showing that the near-IR continuum from the recent RS Oph eruption does not originate in an expanding fireball. However, the present work shows that the IR line emission does have an origin in an expanding shock wave.

Ramkrishna Das; Dipankar P. K. Banerjee; Nagarhalli M. Ashok

2006-11-08T23:59:59.000Z

156

Surface studies and implanted helium measurements following NOVA high-yield DT experiments  

SciTech Connect (OSTI)

This paper presents the results of three March 6, 1996 direct-drive high-yield DT NOVA experiments and provides `proof-of-principal` results for the quantitative measurement of energetic He ions. Semiconductor quality Si wafers and an amorphous carbon wafer were exposed to NOVA high-yield implosions. Surface damage was sub-micron in general, although the surface ablation was slightly greater for the carbon wafer than for the Si wafers. Melting of a thin ({approx} 0.1{mu}) layer of Si was evident from microscopic investigation. Electron microscopy indicated melted blobs of many different metals (e.g. Al, Au, Ta, Fe alloys, Cu and even Cd) on the surfaces. The yield measured by determining the numbers of atoms of implanted {sup 4}He and {sup 3}He indicate the number of DT fusions to be 9.1({plus_minus}2.3) X 10{sup 12} and DD fusions to be 4.8({plus_minus}1.0) x 10{sup 10}, respectively. The helium DT fusion yield is slightly lower than that of the Cu activation measurement, which was 1.3({plus_minus}0.l) x 10{sup 13} DT fusions.

Stoyer, M.A.; Hudson, G.B.

1997-02-18T23:59:59.000Z

157

Photoionization Heating of Nova Ejecta by the Post-Outburst Supersoft Source  

E-Print Network [OSTI]

The expanding ejecta from a classical nova remains hot enough ($\\sim10^{4}\\, {\\rm K}$) to be detected in thermal radio emission for up to years after the cessation of mass loss triggered by a thermonuclear instability on the underlying white dwarf (WD). Nebular spectroscopy of nova remnants confirms the hot temperatures observed in radio observations. During this same period, the unstable thermonuclear burning transitions to a prolonged period of stable burning of the remnant hydrogen-rich envelope, causing the WD to become, temporarily, a super-soft X-ray source. We show that photoionization heating of the expanding ejecta by the hot WD maintains the observed nearly constant temperature of $(1-4)\\times10^4\\mathrm{~K}$ for up to a year before an eventual decline in temperature due to either the cessation of the supersoft phase or the onset of a predominantly adiabatic expansion. We simulate the expanding ejecta using a one-zone model as well as the Cloudy spectral synthesis code, both incorporating the time-d...

Cunningham, Timothy; Bildsten, Lars

2015-01-01T23:59:59.000Z

158

X-Ray Spectroscopy of the Classical Nova V458 Vulpeculae with Suzaku  

E-Print Network [OSTI]

We conducted a target of opportunity X-ray observation of the classical nova V458 Vulpeculae 88 days after the explosion using the Suzaku satellite. With a 20 ks exposure, the X-ray Imaging Spectrometer detected X-ray emission significantly harder than typical super-soft source emission. The X-ray spectrum shows K lines from N, Ne, Mg, Si, and S, and L-series emission from Fe in highly ionized states. The spectrum can be described by a single temperature (0.64 keV) thin thermal plasma model in collisional equilibrium with a hydrogen-equivalent extinction column density of ~3e21/cm2, a flux of ~1e-12 erg/s/cm2, and a luminosity of ~6e34 erg/s in the 0.3-3.0 keV band at an assumed distance of 13 kpc. We found a hint of an enhancement of N and deficiencies of O and Fe relative to other metals. The observed X-ray properties can be interpreted as the emission arising from shocks of ejecta from an ONe-type nova.

Masahiro Tsujimoto; Dai Takei; Jeremy J. Drake; Jan-Uwe Ness; Shunji Kitamoto

2008-10-17T23:59:59.000Z

159

X-Ray Spectroscopy of the Classical Nova V458 Vulpeculae with Suzaku  

E-Print Network [OSTI]

We conducted a target of opportunity X-ray observation of the classical nova V458 Vulpeculae 88 days after the explosion using the Suzaku satellite. With a 20 ks exposure, the X-ray Imaging Spectrometer detected X-ray emission significantly harder than typical super-soft source emission. The X-ray spectrum shows K lines from N, Ne, Mg, Si, and S, and L-series emission from Fe in highly ionized states. The spectrum can be described by a single temperature (0.64 keV) thin thermal plasma model in collisional equilibrium with a hydrogen-equivalent extinction column density of ~3e21/cm2, a flux of ~1e-12 erg/s/cm2, and a luminosity of ~6e34 erg/s in the 0.3-3.0 keV band at an assumed distance of 13 kpc. We found a hint of an enhancement of N and deficiencies of O and Fe relative to other metals. The observed X-ray properties can be interpreted as the emission arising from shocks of ejecta from an ONe-type nova.

Tsujimoto, Masahiro; Drake, Jeremy J; Ness, Jan-Uwe; Kitamoto, Shunji

2008-01-01T23:59:59.000Z

160

Minara Nova  

E-Print Network [OSTI]

, The Backshooter, 11.27.64 CBS DEFENDERS, King of the Hill, 11.31.64 CBS ALFRED HITCHCOCK THEATRE, One of the Family, 2.8.65 NBC VIRGINIAN, A Slight Case of Charity, 2.10.65 NBC THE MAN FROM U.N.C.L.E., The See Paris and Die Affair, 3.1.65 NBC BRANDED... good shows by older writers (e.g., "The Enterprise Inci dent" by D.C. Fontana, "The Day of the Dove" by Jerome Blxby, and "Savage Curtain1 by Gene Roddenberry), in the third season. Of these redeeming third-season episodes, "The Empath...

Multiple Contributors

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Quantifying atmospheric pollution across north america from boreal forest fires: a combined analysis of atmospheric modelling and ground-based remote sensing  

E-Print Network [OSTI]

This paper describes the interpretation of the 2010 summer LIDAR observations from Dal- housie University, Nova Scotia. The GEOS-Chem global 3D chemistry transport model was used to identify the chemical and optical ...

Trigwell, Robert

2011-11-24T23:59:59.000Z

162

THE BIG PICTURE: A "FISHERY SYSTEM APPROACH"  

E-Print Network [OSTI]

, and its lengthy history combined with its rather narrow definition have had a negative impact in limiting Charles Management Science / Environmental Studies Saint Mary's University Halifax, Nova Scotia B3H3C3

Charles, Anthony

163

International Conference on Ocean Energy | Department of Energy  

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

International Conference on Ocean Energy International Conference on Ocean Energy November 4, 2014 1:00PM EST to November 6, 2014 10:00PM EST Halifax, Nova Scotia, Canada http:...

164

Engagement in Reading and Access to Print: The Relationship of Home and School to Overall Reading Achievement Among Fourth Grade English Speakers  

E-Print Network [OSTI]

speakers from Canada (Alberta, British Columbia, and Nova Scotia), New Zealand, England, and USA. Data from the Progress in International Reading Literacy Study (PIRLS) questionnaires and reading achievement test were used to design the two models...

Allaith, Zainab A.

2013-04-05T23:59:59.000Z

165

GROWTH, MORTALITY, AND AGE/SIZE STRUCTURE OF THE FISHERIES FOR TILEFISH, LOPHOLATILUS CHAMAELONTICEPS,  

E-Print Network [OSTI]

in 80-540 m from Nova Scotia to Surinam (Dooley 1978; Markle et a1. 1980). In the Middle Atlantic Bight), horizontal excavations in submarine canyon walls called "pueblo villages" (Cooper and Uzmann 1977; Warme et a

166

Green University Planning Committee Friday, January 18, 2013  

E-Print Network [OSTI]

Solar PV proposal differs significantly from initial proposal - Motion: Solar PV Proposal to be included Cooperative, Small-scale wind (Nova Scotia), Data server farm - To be discussed with Energy Subcommittee B

Northern British Columbia, University of

167

PHASE-RESOLVED INFRARED SPECTROSCOPY AND PHOTOMETRY OF V1500 CYGNI, AND A SEARCH FOR SIMILAR OLD CLASSICAL NOVAE  

SciTech Connect (OSTI)

We present phase-resolved near-infrared photometry and spectroscopy of the classical nova (CN) V1500 Cyg to explore whether cyclotron emission is present in this system. While the spectroscopy do not indicate the presence of discrete cyclotron harmonic emission, the light curves suggest that a sizable fraction of its near-infrared fluxes are due to this component. The light curves of V1500 Cyg appear to remain dominated by emission from the heated face of the secondary star in this system. We have used infrared spectroscopy and photometry to search for other potential magnetic systems among old CNe. We have found that the infrared light curves of V1974 Cyg superficially resemble those of V1500 Cyg, suggesting a highly irradiated companion. The old novae V446 Her and QV Vul have light curves with large amplitude variations like those seen in polars, suggesting they might have magnetic primaries. We extract photometry for 79 old novae from the Two Micron All Sky Survey Point Source Catalog and use those data to derive the mean, un-reddened infrared colors of quiescent novae. We also extract WISE data for these objects and find that 45 of them were detected. Surprisingly, a number of these systems were detected in the WISE 22 {mu}m band. While two of those objects produced significant dust shells (V705 Cas and V445 Pup), the others did not. It appears that line emission from their ionized ejected shells is the most likely explanation for those detections.

Harrison, Thomas E. [Department of Astronomy, New Mexico State University, Box 30001, MSC 4500, Las Cruces, NM 88003-8001 (United States); Campbell, Randy D.; Lyke, James E., E-mail: tharriso@nmsu.edu, E-mail: jlyke@keck.hawaii.edu, E-mail: randyc@keck.hawaii.edu [W. M. Keck Observatory, 65-1120 Mamalahoa Hwy., Kamuela, HI 96743 (United States)

2013-08-01T23:59:59.000Z

168

Advances in Sustainable Petroleum Engineering Science ISSN 1937-7991 Volume 2, Number 3 2011 Nova Science Publishers, Inc.  

E-Print Network [OSTI]

Advances in Sustainable Petroleum Engineering Science ISSN 1937-7991 Volume 2, Number 3 © 2011 Nova Science Publishers, Inc. THE MYSTERYAND UNCERTAINTY CLOUD DURING RESERVOIR SIMULATION IN THE PETROLEUM INDUSTRY M. Enamul Hossain1 and M. Rafiqul Islam2 1 Department of Petroleum Engineering, King Fahd

Hossain, M. Enamul

169

INFRARED SPECTROSCOPY OF SYMBIOTIC STARS. IX. D-TYPE SYMBIOTIC NOVAE  

SciTech Connect (OSTI)

Time-series spectra of the near-infrared 1.6 {mu}m region have been obtained for five of the six known D-type symbiotic novae. The spectra map the pulsation kinematics of the Mira component in the Mira-white dwarf binary system and provide the center-of-mass velocity for the Mira. No orbital motion is detected in agreement with previous estimates of orbital periods {approx}>100 yr and semimajor axes {approx}50 AU. The 1-5 {mu}m spectra of the Miras show line weakening during dust obscuration events. This results from scattering and continuum emission by 1000 K dust. In the heavily obscured HM Sge system the 4.6 {mu}m CO spectrum formed in 1000 K gas is seen in emission against an optically thick dust continuum. Spectral features that are typically produced in either the cool molecular region or the expanding circumstellar region of late-type stars cannot be detected in the D-symbiotic novae. This is in accord with the colliding wind model for interaction between the white dwarf and Mira. Arguments are presented that the 1000 K gas and dust are not Mira circumstellar material but are in the wind interaction region of the colliding winds. CO is the first molecule detected in this region. We suggest that dust condensing in the intershock region is the origin of the dust obscuration. This model explains variations in the obscuration. Toward the highly obscured Mira in HM Sge the dust zone is estimated to be {approx}0.1 AU thick. The intershock wind interaction zone appears thinnest in the most active systems. Drawing on multiple arguments masses are estimated for the system components. The Miras in most D-symbiotic novae have descended from intermediate mass progenitors. The large amount of mass lost from the Mira combined with the massive white dwarf companion suggests that these systems are supernova candidates. However, timescales and the number of objects make these rare events.

Hinkle, Kenneth H.; Joyce, Richard R. [National Optical Astronomy Observatories, P.O. Box 26732, Tucson, AZ 85726 (United States); Fekel, Francis C. [Center of Excellence in Information Systems, Tennessee State University, 3500 John A. Merritt Blvd., Box 9501, Nashville, TN 37209 (United States); Wood, Peter, E-mail: hinkle@noao.edu, E-mail: joyce@noao.edu, E-mail: fekel@evans.tsuniv.edu, E-mail: wood@mso.anu.edu.au [Research School of Astronomy and Astrophysics, Australian National University, Private Bag, Canberra, ACT 2611 (Australia)

2013-06-10T23:59:59.000Z

170

UNDERGRADUATE DEGREES 2015 ENVIRONMENT  

E-Print Network [OSTI]

COME AND YOUR F I N D PLACE UNDERGRADUATE DEGREES 2015 EARTH and ENVIRONMENT #12;| CONTENTS | www OF EARTH AND ENVIRONMENT Why study earth and environment at Leeds? 2 Why study an earth science course? 4 Why study an environment course? 8 Choosing the right degree 12 Four-year industrial degrees (BA

171

BRIGHT 'MERGER-NOVA' FROM THE REMNANT OF A NEUTRON STAR BINARY MERGER: A SIGNATURE OF A NEWLY BORN, MASSIVE, MILLISECOND MAGNETAR  

SciTech Connect (OSTI)

A massive millisecond magnetar may survive the merger of a neutron star (NS) binary, which would continuously power the merger ejecta. We develop a generic dynamic model for the merger ejecta with energy injection from the central magnetar. The ejecta emission (the {sup m}erger-nova{sup )} powered by the magnetar peaks in the UV band and the peak of the light curve, progressively shifts to an earlier epoch with increasing frequency. A magnetar-powered merger-nova could have an optical peak brightness comparable to a supernova, which is a few tens or hundreds times brighter than the radioactive-powered merger-novae (the so-called macro-nova or kilo-nova). On the other hand, such a merger-nova would peak earlier and have a significantly shorter duration than that of a supernova. An early collapse of the magnetar could suppress the brightness of the optical emission and shorten its duration. Such millisecond-magnetar-powered merger-novae may be detected from NS-NS merger events without an observed short gamma-ray burst, and could be a bright electromagnetic counterpart for gravitational wave bursts due to NS-NS mergers. If detected, it suggests that the merger leaves behind a massive NS, which has important implications for the equation-of-state of nuclear matter.

Yu, Yun-Wei [Institute of Astrophysics, Central China Normal University, Wuhan 430079 (China)] [Institute of Astrophysics, Central China Normal University, Wuhan 430079 (China); Zhang, Bing; Gao, He, E-mail: yuyw@mail.ccnu.edu.cn, E-mail: zhang@physics.unlv.edu [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States)] [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States)

2013-10-20T23:59:59.000Z

172

The EUV Spectrum of the Quasi-Coherent Oscillations of the Dwarf Nova SS Cygni  

E-Print Network [OSTI]

Data obtained by the Extreme Ultraviolet Explorer satellite are used to determine the EUV spectrum of the quasi-coherent oscillations of the dwarf nova SS Cygni. It is found that the spectrum of the oscillations is neither blue nor red nor grey relative to the net (oscillation-phase integrated) spectrum, and hence that the oscillations cannot be explained by variations in the effective temperature, absorbing column density, or effective area, respectively. Instead, it is found that the amplitude of the oscillations is high at the relative maxima of the net spectrum, and low to zero at the relative minima of the net spectrum. This behavior can be explained by either variations in the emission line flux atop a constant underlying continuum, or variations in the optical depth of a haze of overlapping absorption lines, in which case the optical depths must be $\\tau<1$ at the relative maxima of the net spectrum, and $\\tau\\gg 1$ at the relative minima.

Christopher W. Mauche

1996-08-05T23:59:59.000Z

173

Evidence for ablated flows in the shell of nova DQ Her  

E-Print Network [OSTI]

High-resolution longslit Halpha spectra of the shell of the old nova DQ Her have been obtained with the William Herschel Telescope using the ISIS spectrograph. An equatorial expansion velocity of 370+/-14 km/s is derived from the spectra which, in conjunction with a narrowband Halpha image of the remnant, allows a distance estimate of 525+/-28 pc. An equatorial ring which exhibits enhanced [NII] emission has also been detected and the inclination angle of the shell is found to be 86.8+/-0.2 degrees with respect to the line of sight. The spectra also reveal tails extending from the clumps in the shell, which have a radial velocity increasing along their length. This suggests the presence of a stellar wind, collimated in the polar direction, which ablates fragments of material from the clumps and accelerates them into its stream up to a terminal velocity of order 800-900 km/s.

N. M. H. Vaytet; T. J. O'Brien; A. P. Rushton

2007-06-01T23:59:59.000Z

174

QU Car: a very high luminosity nova-like binary with a carbon-enriched companion  

E-Print Network [OSTI]

QU Car is listed in cataclysmic variable star catalogues as a nova-like variable. This little-studied, yet bright interacting binary is re-appraised here in the light of new high-quality ultraviolet (UV) interstellar line data obtained with STIS on board the Hubble Space Telescope. The detection of a component of interstellar absorption at a mean LSR velocity of $-$14 km s$^{-1}$ indicates that the distance to QU Car may be $\\sim$2 kpc or more -- a considerable increase on the previous lower-limiting distance of 500 pc. If so, the bolometric luminosity of QU Car could exceed $10^{37}$ ergs s$^{-1}$. This would place this binary in the luminosity domain occupied by known compact-binary supersoft X-ray sources. Even at a 500 pc, QU Car appears to be the most luminous nova-like variable known. New intermediate dispersion optical spectroscopy of QU Car spanning 3800--7000 \\AA is presented. These data yield the discovery that C{\\sc iv} $\\lambda\\lambda$5801,12 is present as an unusually prominent emission line in an otherwise low-contrast line spectrum. Using measurements of this and other lines in a recombination line analysis, it is shown that the C/He abundance as proxied by the n(C$^{4+}$)/n(He$^{2+}$) ratio may be as high as 0.06 (an order of magnitude higher than the solar ratio). Furthermore, the C/O abundance ratio is estimated to be greater than 1. These findings suggest that the companion in QU Car is a carbon star. If so, it would be the first example of a carbon star in such a binary. An early-type R star best matches the required abundance pattern and could escape detection at optical wavelengths provided the distance to QU Car is $\\sim$2 kpc or more.

J. E. Drew; L. E. Hartley; K. S. Long; J. van der Walt

2002-09-16T23:59:59.000Z

175

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning  

E-Print Network [OSTI]

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Beloningsbaserad Inlarning Defining the Problem Known Environment Unknown Environment Improvements 1 Defining the Problem Framework Role of Reward Simplifying Assumptions Central Concepts 2 Known Environment Bellmans

Kjellstrm, Hedvig

176

Lesson 34a: Environment  

E-Print Network [OSTI]

Pasifiki [Pacific Ocean] Bahari Aktiki [Arctic Ocean] Bahari ya Mediterani [Mediterranean Sea] Bahari yaLesson 34a: Environment Environment [mazingira] bahari / bahari [ocean / sea / oceans / seas / farms] Bahari [ocean / sea] Bahari Hindi [Indian Ocean] Bahari Atlantiki [Atlantic Ocean] Bahari

177

Computing environment logbook  

DOE Patents [OSTI]

A computing environment logbook logs events occurring within a computing environment. The events are displayed as a history of past events within the logbook of the computing environment. The logbook provides search functionality to search through the history of past events to find one or more selected past events, and further, enables an undo of the one or more selected past events.

Osbourn, Gordon C; Bouchard, Ann M

2012-09-18T23:59:59.000Z

178

Environment and Climate Change  

E-Print Network [OSTI]

Migration, Environment and Climate Change: ASSESSING THE EVIDENCE #12;The opinions expressed;Migration, Environment and Climate Change: ASSESSING THE EVIDENCE Edited by Frank Laczko and Christine with with the financial support of #12;3 Migration, Environment and Climate Change: Assessing the Evidence Contents

Galles, David

179

On the 21Na(p,gamma)22Mg thermonuclear rate for 22Na production in novae  

E-Print Network [OSTI]

Classical novae are potential sources of gamma-rays, like the 1.275 MeV gamma emission following 22Na beta decay, that could be detected by appropriate instruments on board of future satellites like INTEGRAL. It has been shown that the production of 22Na by novae is affected by the uncertainty on the 21Na(p,gamma)22Mg rate and in particular by the unknown partial widths of the Ex = 5.714 MeV, J^pi = 2^+, 22Mg level. To reduce these uncertainties, we performed shell model calculations with the OXBASH code, compared the results with available spectroscopic data and calculated the missing partial widths. Finally, we discuss the influence of these results on the 21Na(p,gamma)22Mg reaction rate and 22Na synthesis.

Nadya A. Smirnova; Alain Coc

2000-08-16T23:59:59.000Z

180

New Constraints on the 18F(p,alpha) 15O Rate in Novae from the (d,p) Reaction  

E-Print Network [OSTI]

The degree to which the (p,gamma) and (p,alpha) reactions destroy 18F at temperatures 1-4x10^8 K is important for understanding the synthesis of nuclei in nova explosions and for using the long-lived radionuclide 18F, a target of gamma-ray astronomy, as a diagnostic of nova mechanisms. The reactions are dominated by low-lying proton resonances near the 18F+p threshold (E_x=6.411 MeV in 19Ne). To gain further information about these resonances, we have used a radioactive 18F beam from the Holifield Radioactive Ion Beam Facility to selectively populate corresponding mirror states in 19F via the inverse d(18F,p)19F neutron transfer reaction. Neutron spectroscopic factors were measured for states in 19F in the excitation energy range 0-9 MeV. Widths for corresponding proton resonances in 19Ne were calculated using a Woods-Saxon potential. The results imply significantly lower 18F(p,gamma)19Ne and 18F(p,alpha)15O reaction rates than reported previously, thereby increasing the prospect of observing the 511-keV annihilation radiation associated with the decay of 18F in the ashes ejected from novae.

R. L. Kozub; D. W. Bardayan; J. C. Batchelder; J. C. Blackmon; C. R. Brune; A. E. Champagne; J. A. Cizewski; T. Davinson; U. Greife; C. J. Gross; C. C. Jewett; R. J. Livesay; Z. Ma; B. H. Moazen; C. D. Nesaraja; L. Sahin; J. P. Scott; D. Shapira; M. S. Smith; J. S. Thomas; P. J. Woods

2005-01-11T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Scotia Wind Ltd | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende New EnergyAnatoliaScira Offshore Energy Jump to:

182

Simulations of laser imprint for Nova experiments and for ignition capsules. Revision 1  

SciTech Connect (OSTI)

In direct drive ICF, nonuniformities in laser illumination seed ripples at the ablation front in a process called ``imprint``. These nonuniformities grow during the capsule implosion and, if initially large enough, can penetrate the capsule shell, impede ignition, or degrade burn. Imprint has been simulated for recent experiments performed on the Nova laser at LLNL examining a variety of beam smoothing conditions. Most used laser intensities similar to the early part of an ignition capsule pulse shape, 1 {approx_equal} 10{sup 13} W/cm{sup 2} . The simulations matched most of the measurements of imprint modulation. The effect of imprint upon National Ignition Facility (NIF) direct drive ignition capsules has also been simulated. Imprint is predicted to give modulation comparable to an intrinsic surface finish of {approximately}10 nm RMS. Modulation growth was examined using the Haan [Phys. Rev. A {bold 39}, 5812 (1989)] model, with linear growth factors as a function of spherical harmonic mode number obtained from an analytic dispersion relation. Ablation front amplitudes are predicted to become substantially nonlinear, so that saturation corrections are large. Direct numerical simulations of two-dimensional multimode growth were also performed. The capsule shell is predicted to remain intact, which gives a basis for believing that ignition can be achieved. 27 refs., 10 figs.

Weber, S.V.; Glendinning, S.G.; Kalantar, D.H.; Key, M.H.; Remington, B.A.; Rothenberg, J.L. [Lawrence Livermore National Lab., CA (United States); Wolfrum, E. [Rutherford Appleton Lab., Chilton (United Kingdom); Verdon, C.P.; Knauer, J.P. [Rochester Univ., NY (United States). Lab. for Laser Energetics

1996-12-01T23:59:59.000Z

183

Simulations of laser imprint for Nova experiments and for ignition capsules  

SciTech Connect (OSTI)

In direct drive ICF, nonuniformities in laser illumination seed ripples at the ablation front in a process called imprint. These non nonuniformities grow during the capsule implosion and, if initially large enough, can penetrate the capsule shell, impede ignition, or degrade burn. Imprint has been simulated for recent experiments performed on the Nova laser at LLNL examining a variety of beam smoothing conditions. Most used laser intensities similar to the early part of an ignition capsule pulse shape, I=10X13 W/cm3. The simulations matched most of the measurements of imprint modulation. The effect of imprint upon National Ignition Facility (NIF) direct drive ignition capsules has also been simulated. Imprint is predicted to give modulation comparable to an intrinsic surface finish of 10 nm RMS. Modulation growth was examined using the Haan model, with linear growth as a function of spherical harmonic mode number obtained from an analytic dispersion relation. Ablation front amplitudes are predicted to become substantially nonlinear, so that saturation corrections are large. Direct numerical simulations of two- dimensional multimode growth were also performed. The capsule shell is predicted to remain intact, which gives a basis for believing that ignition can be achieved.

Weber, S.V.; Glendinning, S.G.; Kalantar, D.H.; Key, M.H.; Remington, B.A.; Rothenberg, J.E.; Wolfrum, E.; Verdon, C.P.; Knauer, J.P.

1996-11-08T23:59:59.000Z

184

Energy/Environment/Commissioning  

E-Print Network [OSTI]

//NESTECNESTEC Nobuo NakaharaNobuo Nakahara ICEBO/APCBCAsia Pacific Conference on Building Commissioning 2006.11.7 Opening AddressOpening AddressEnergy/Environment/CommissioningEnergy/Environment/Commissioning Call for Call... Commissioning PrincipleCommissioning Principle Evaluation PrincipleEvaluation Principle How Building & Urban Energy System How Building & Urban Energy System shall be completed and maintained?shall be completed and maintained? Mechanism of Urban Environment...

Nakahara, N.

2006-01-01T23:59:59.000Z

185

Climate Change, Drought & Environment  

Broader source: Energy.gov [DOE]

Afternoon Plenary Session: Current Trends in the Advanced Bioindustry Climate Change, Drought, and EnvironmentMichael Champ, Executive Director, The Sustainable Water Challenge

186

Forests and historic environment  

E-Print Network [OSTI]

Forests and historic environment UK Forestry Standard Guidelines #12;Key to symbols UKFS Reference number #12;Forests and historic environment Forestry Commission: Edinburgh UK Forestry Standard in any format or medium, under the terms of the Open Government Licence. To view this licence, visit: www

187

environment and agriculture  

E-Print Network [OSTI]

environment and agriculture environmentagriculture.curtin.edu.au Bachelor of Science - majorS in agriculture, environmental Biology or coaStal Zone management Science and engineering #12;t he department of environment and agriculture caters for students who are passionate about agriculture, biology, conserving

188

The Masses and Evolutionary State of the Stars in the Dwarf Nova SS Cygni  

E-Print Network [OSTI]

The dwarf nova SS Cygni is a close binary star consisting of a K star transferring mass to a white dwarf by way of an accretion disk. We have obtained new spectroscopic observations of SS Cyg with the Hobby-Eberly Telescope (HET). Fits of synthetic spectra for Roche-lobe-filling stars to the absorption-line spectrum of the K star yield the amplitude of the K star's radial velocity curve and the mass ratio: K_{K} = 162.5 +/- 1.0 km/s and q= M_{K} /M_{wd} = 0.685 +/- 0.015. The fits also show that the accretion disk and white dwarf contribute a fraction f = 0.535 +/- 0.075 of the total flux at 5500 angstroms. Taking the weighted average of our results with previously published results obtained using similar techniques, we find = 163.7 +/- 0.7 km/s and = 0.683 +/- 0.012. The orbital light curve of SS Cyg shows an ellipsoidal variation diluted by light from the disk and white dwarf. From an analysis of the ellipsoidal variations we limit the orbital inclination to the range 45 deg. <= i <= 56 deg. The derived masses of the K star and white dwarf are M_{K} = 0.55 +/- 0.13 M_sun and M_{wd} = 0.81 +/- 0.19 M_sun, where the uncertainties are dominated by systematic errors in the orbital inclination. The K star in SS Cyg is 10% to 50% larger than an unevolved star with the same mass and thus does not follow the mass-radius relation for Zero-Age Main-Sequence stars; nor does it follow the ZAMS mass/spectral-type relation. Its mass and spectral type are, however, consistent with models in which the core hydrogen has been significantly depleted.

Martin A. Bitner; Edward L. Robinson; Bradford B. Behr

2007-03-05T23:59:59.000Z

189

First Direct Measurement of the ^{17}O(p,?)^{18}F Reaction Cross-Section at Gamow Energies for Classical Novae  

E-Print Network [OSTI]

Classical novae are important contributors to the abundances of key isotopes, such as the radioactive ^{18}F, whose observation by satellite missions could provide constraints on nucleosynthesis models in novae. The ^{17}O(p,\\gamma)^{18}F reaction plays a critical role in the synthesis of both oxygen and fluorine isotopes but its reaction rate is not well determined because of the lack of experimental data at energies relevant to novae explosions. In this study, the reaction cross section has been measured directly for the first time in a wide energy range Ecm = 200 - 370 keV appropriate to hydrogen burning in classical novae. In addition, the E=183 keV resonance strength, \\omega \\gamma=1.67\\pm0.12 \\mueV, has been measured with the highest precision to date. The uncertainty on the ^{17}O(p,\\gamma)^{18}F reaction rate has been reduced by a factor of 4, thus leading to firmer constraints on accurate models of novae nucleosynthesis.

D. A. Scott; A. Caciolli; A. DiLeva; A. Formicola; M. Aliotta; M. Anders; D. Bemmerer; C. Broggini; M. Campeggio; P. Corvisiero; Z. Elekes; Zs. Flp; G. Gervino; A. Guglielmetti; C. Gustavino; Gy. Gyrky; G. Imbriani; M. Junker; M. Laubenstein; R. Menegazzo; M. Marta; E. Napolitani; P. Prati; V. Rigato; V. Roca; E. Somorjai; C. Salvo; O. Straniero; F. Strieder; T. Szcs; F. Terrasi; D. Trezzi

2012-10-24T23:59:59.000Z

190

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning  

E-Print Network [OSTI]

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Beloningsbaserad Inlarning #12;Defining the Problem Known Environment Unknown Environment Improvements 1 Defining the Problem Framework Role of Reward Simplifying Assumptions Central Concepts 2 Known Environment Bellman

Kjellstrm, Hedvig

191

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning  

E-Print Network [OSTI]

Defining the Problem Known Environment Unknown Environment Improvements Reinforcement Learning Beloningsbaserad Inlarning #12;Defining the Problem Known Environment Unknown Environment Improvements 1 Defining the Problem Framework Role of Reward Simplifying Assumptions Central Concepts 2 Known Environment Bellmans

Kjellstrm, Hedvig

192

PCs in Business Environment  

E-Print Network [OSTI]

"PCs in Business Environment" is a project that contains two parts. First part is a real life application developed for Nordic Meat Inc. a small food - manufacturer in the KC area, developed in MS Excel 5.0 spreadsheet ...

Colak, Mijo Todor

1994-07-29T23:59:59.000Z

193

INTERNATIONAL ENERGY AND ENVIRONMENT  

E-Print Network [OSTI]

in a heat pump cooling system, thereby alleviating peak electricity consumption and associated emissions substituting for banned fluorocarbon refrigerants, coping with carbon costing and reducing water consumptionINTERNATIONAL ENERGY AND ENVIRONMENT FOUNDATION Computational Fluid Dynamics Modeling

194

Environment induced incoherent controllability  

E-Print Network [OSTI]

We prove that the environment induced entanglement between two non interacting, two-dimensional quantum systems S and P can be used to control the dynamics of S by means of the initial state of P. Using a simple, exactly solvable model, we show that both accessibility and controllability of S can be achieved under suitable conditions on the interaction of S and P with the environment.

Raffaele Romano; Domenico D'Alessandro

2005-11-08T23:59:59.000Z

195

Polymers in disordered environments  

E-Print Network [OSTI]

A brief review of our recent studies aiming at a better understanding of the scaling behaviour of polymers in disordered environments is given. The main emphasis is on a simple generic model where the polymers are represented by (interacting) self-avoiding walks and the disordered environment by critical percolation clusters. The scaling behaviour of the number of conformations and their average spatial extent as a function of the number of monomers and the associated critical exponents $\\gamma$ and $\

V. Blavatska; N. Fricke; W. Janke

2014-11-18T23:59:59.000Z

196

Hotspots, Jets and Environments  

E-Print Network [OSTI]

I discuss the nature of `hotspots' and `jet knots' in the kpc-scale structures of powerful radio galaxies and their relationship to jet-environment interactions. I describe evidence for interaction between the jets of FRI sources and their local environments, and discuss its relationship to particle acceleration, but the main focus of the paper is the hotspots of FRIIs and on new observational evidence on the nature of the particle acceleration associated with them.

M. J. Hardcastle

2007-07-12T23:59:59.000Z

197

The Desert Environment January 26, 1999 1 The Desert Environment  

E-Print Network [OSTI]

The Desert Environment January 26, 1999 1 The Desert Environment Revised Paper Steven P. Reiss1@cs.brown.edu Abstract The Desert software engineering environment is a suite of tools developed to enhance pro- grammer virtual files on demand to address specific tasks. All this is done in an open and extensible environment

Reiss, Steven P.

198

Environment scattering in GADRAS.  

SciTech Connect (OSTI)

Radiation transport calculations were performed to compute the angular tallies for scattered gamma-rays as a function of distance, height, and environment. Green's Functions were then used to encapsulate the results a reusable transformation function. The calculations represent the transport of photons throughout scattering surfaces that surround sources and detectors, such as the ground and walls. Utilization of these calculations in GADRAS (Gamma Detector Response and Analysis Software) enables accurate computation of environmental scattering for a variety of environments and source configurations. This capability, which agrees well with numerous experimental benchmark measurements, is now deployed with GADRAS Version 18.2 as the basis for the computation of scattered radiation.

Thoreson, Gregory G.; Mitchell, Dean James; Theisen, Lisa Anne; Harding, Lee T.

2013-09-01T23:59:59.000Z

199

Workshop: Novas Abordagens para Monitorar a Queima de Biomassa (New Approaches to Monitor Biomass Burning) Coordenador: Emilio Chuvieco (University of Alcal, Spain)  

E-Print Network [OSTI]

Workshop: Novas Abordagens para Monitorar a Queima de Biomassa (New Approaches to Monitor Biomass relevant topics associated to monitoring biomass burnings from satellite data, both at global and regional scales. Hora Título das Palestras Apresentador 9:00 Opening 9:10 Global Monitoring of Biomass Burning

200

ENVIRONMENT 2006 Annual Report  

E-Print Network [OSTI]

ENVIRONMENT 2006 Annual Report IBM AND THE #12;Table of Contents Global Environmental Management and Management 13 International Performance Measures 13 Water Conservation 15 Climate Protection 16 on environmental protection in 1971. The policy is supported by a comprehensive global environmental management

Note: This page contains sample records for the topic "nova scotia environment" 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

Multiprocessor programming environment  

SciTech Connect (OSTI)

Programming tools and techniques have been well developed for traditional uniprocessor computer systems. The focus of this research project is on the development of a programming environment for a high speed real time heterogeneous multiprocessor system, with special emphasis on languages and compilers. The new tools and techniques will allow a smooth transition for programmers with experience only on single processor systems.

Smith, M.B.; Fornaro, R.

1988-12-01T23:59:59.000Z

202

COLLEGE OF ENGINEERING Environment  

E-Print Network [OSTI]

COLLEGE OF ENGINEERING Environment #12;Engineeringhas always been an essential element of society monitoring and true sustainability. As an undergraduate environmental engineering student, I've enjoyed and leadership while planning student events, serving on advisory boards, and working directly with the College

203

save energy, environment  

E-Print Network [OSTI]

was especially emphasized dur- ing the 1970s to combat the energy crisis caused by Arab oil embargoes. The recentsave energy, money, and the environment Windbreaks and shade trees #12;PrePared by Bryan R trees is based on their potential to save money from subsequent energy re- ductions. Winter heating

Boyer, Elizabeth W.

204

Sample Environment Plans and Progress  

E-Print Network [OSTI]

Sample Environment Plans and Progress at the SNS & HFIR SNS HFIR User Group Meeting American Conference on Neutron Scattering Ottawa, Canada June 26 30, 2010 Lou Santodonato Sample Environment Group our sample environment capabilities Feedback SHUG meetings User surveys Sample Environment Steering

Pennycook, Steve

205

DISTRIBUTED AND COLLABORATIVE SYNTHETIC ENVIRONMENTS  

E-Print Network [OSTI]

1 DISTRIBUTED AND COLLABORATIVE SYNTHETIC ENVIRONMENTS Chandrajit L. Bajaj and Fausto Bernardini with synthetic environments1,2,3,4,5,6 . A synthetic environment system is generally characterized and the synthetic environment generated by the computer. Several degrees of immersion are possible, ranging from

Texas at Austin, University of

206

Research Articles Holistic Programming Environments  

E-Print Network [OSTI]

Research Articles Holistic Programming Environments Gary Marsden a Harold Thimbleby b a Department a development environment. Of course, we can scoff at the distinction and say that a development environment to the development of programming environments and suggest ways in which this may be achieved. Keywords: Programming

Marsden, Gary

207

Environment and Protostellar Evolution  

E-Print Network [OSTI]

Even today in our Galaxy, stars form from gas cores in a variety of environments, which may affect the properties of resulting star and planetary systems. Here we study the role of pressure, parameterized via ambient clump mass surface density, on protostellar evolution and appearance, focussing on low-mass, Sun-like stars and considering a range of conditions from relatively low pressure filaments in Taurus, to intermediate pressures of cluster-forming clumps like the Orion Nebula Cluster (ONC), to very high pressures that may be found in the densest Infrared Dark Clouds (IRDCs) or in the Galactic Center (GC). We present unified analytic and numerical models for collapse of prestellar cores, accretion disks, protostellar evolution and bipolar outflows, coupled to radiative transfer (RT) calculations and a simple astrochemical model to predict CO gas phase abundances. Prestellar cores in high pressure environments are smaller and denser and thus collapse with higher accretion rates and efficiencies, resulting...

Zhang, Yichen

2014-01-01T23:59:59.000Z

208

Galaxy Evolution and Environment  

E-Print Network [OSTI]

The properties of galaxies are strongly correlated with their environment, with red galaxies dominating galaxy clusters and blue galaxies dominating the general field. However, not all field galaxies are young: studies of the colors, line strengths, and M/L ratios of massive early-type galaxies at 0environment. There is good evidence that the growth of these galaxies does continue longer in the field than in clusters, via (nearly) dissipationless mergers of already old galaxies. These results are consistent with predictions of recent galaxy formation models, which incorporate AGN feedback to suppress star formation in the most massive halos. Systematic studies of the relation of galaxies with their environment beyond z=1 are difficult, and still somewhat contradictory. Intriguingly both the DEEP2 and VVDS surveys find that the color-density relation disappears at z~1.3, unfortunately just at the point where both surveys become highly incomplete. On the other hand, clustering studies at z~2.5 have shown that red galaxies cluster more strongly than blue galaxies, implying that the color-density relation was already in place at that redshift.

Pieter van Dokkum; Ryan Quadri

2007-04-13T23:59:59.000Z

209

Ecology and environment What ecology and environment course is  

E-Print Network [OSTI]

Ecology and environment Essentials What ecology and environment course is there? Ecology 01273 876787 Why ecology and environment at Sussex? · You will be taught by lecturers who are leaders in research, with a broad range of experience and expertise including plant, bird and insect ecology, climate

Sussex, University of

210

XMM-NEWTON X-RAY AND ULTRAVIOLET OBSERVATIONS OF THE FAST NOVA V2491 Cyg DURING THE SUPERSOFT SOURCE PHASE  

SciTech Connect (OSTI)

Two XMM-Newton observations of the fast classical nova V2491 Cyg were carried out in short succession on days 39.93 and 49.62 after discovery, during the supersoft source (SSS) phase, yielding simultaneous X-ray and UV light curves and high-resolution X-ray spectra. The first X-ray light curve is highly variable, showing oscillations with a period of 37.2 minutes after an extended factor of three decline lasting {approx}3 hr, while the second X-ray light curve is less variable. The cause of the dip is currently unexplained and has most likely the same origin as similar events in the early SSS light curves of the novae V4743 Sgr and RS Oph, as it occurred on the same timescale. The oscillations are not present during the dip minimum and also not in the second observation. The UV light curves are variable but contain no dips and no period. High-resolution X-ray spectra are presented for four intervals of differing intensity. All spectra are atmospheric continua with deep absorption lines and absorption edges. Two interstellar lines of O I and N I are clearly seen at their rest wavelengths, while a large number of high-ionization absorption lines are found at blueshifts indicating an expansion velocity of 3000-3400 km s{sup -1}, which does not change significantly during the epochs of observation. Comparisons with the slower nova V4743 Sgr and the symbiotic recurrent nova RS Oph are presented. The SSS spectrum of V4743 Sgr is much softer with broader and more complex photospheric absorption lines. The ejecta are extended, allowing us to view a larger range of the radial velocity profile. Meanwhile, the absorption lines in RS Oph are as narrow as in V2491 Cyg, but they are less blueshifted. A remarkable similarity in the continua of V2491 Cyg and RS Oph is found. The only differences are smaller line shifts and additional emission lines in RS Oph that are related to the presence of a dense stellar wind from the evolved companion. Three unidentified absorption lines are present in the X-ray spectra of all three novae, with projected rest wavelengths 26.05 A, 29.45 A, and 30.0 A. No entirely satisfactory spectral model is currently available for the soft X-ray spectra of novae in outburst, and careful discussion of assumptions is required.

Ness, J.-U. [XMM-Newton Science Operations Centre, ESA, Madrid (Spain); Osborne, J. P.; Page, K. L.; Beardmore, A. P. [Department of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH (United Kingdom); Dobrotka, A. [Department of Physics, Institute of Materials Science, Faculty of Materials Science and Technology, Slovak University of Technology in Bratislava, 91724 Trnava (Slovakia); Drake, J. J. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Pinto, C.; Detmers, R. G. [SRON Netherlands Institute for Space Research, 3584 CA Utrecht (Netherlands); Schwarz, G. [American Astronomical Society, Washington, DC 20009-1231 (United States); Bode, M. F. [Astrophysics Research Institute, Liverpool John Moores University, Birkenhead CH41 1LD (United Kingdom); Starrfield, S. [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404 (United States); Hernanz, M. [Institut de Ciencies de l'Espai (CSIC-IEEC), Campus UAB, Facultat de Ciencies, 08193 Bellaterra (Barcelona) (Spain); Sala, G. [Departament Fisica i Enginyeria Nuclear, EUETIB (UPC-IEEC), 08036 Barcelona (Spain); Krautter, J. [Landessternwarte Koenigstuhl, Universitaet Heidelberg, D-69117 Heidelberg (Germany); Woodward, C. E. [Department of Astronomy, University of Minnesota, Minneapolis, MN 55455 (United States)

2011-05-20T23:59:59.000Z

211

GK Per (Nova Persei 1901): HUBBLE SPACE TELESCOPE IMAGERY AND SPECTROSCOPY OF THE EJECTA, AND FIRST SPECTRUM OF THE JET-LIKE FEATURE  

SciTech Connect (OSTI)

We have imaged the ejecta of GK Persei (Nova Persei 1901 A.D.) with the Hubble Space Telescope (HST), whose 0.1 arcsec resolution reveals hundreds of cometary-like structures with long axes aligned toward GK Per. One or both ends of the structures often show a brightness enhancement relative to the structures' middle sections, but there is no simple regularity to their morphologies (in contrast with, for example, the Helix nebula). Some of structures' morphologies suggest the presence of slow-moving or stationary material with which the ejecta is colliding, while others suggest shaping from a wind emanating from GK Per itself. The most detailed expansion map of any classical nova's ejecta was created by comparing HST images taken in successive years. Wide Field and Planetary Camera 2 narrowband images and Space Telescope Imaging Spectrograph spectra demonstrate that the physical conditions in this nova's ejecta vary strongly on spatial scales much smaller than those of the ejecta. Directly measuring accurate densities and compositions, and hence masses of this and other nova shells, will demand data at least as resolved spatially as those presented here. The filling factor of the ejecta is 1% or less, and the nova ejecta mass must be less than 10{sup -4} M{sub Sun }. A modest fraction of the emission nebulosities vary in brightness by up to a factor of two on timescales of one year. Finally, we present the deepest images yet obtained of a jet-like feature outside the main body of GK Per nebulosity, and the first spectrum of that feature. Dominated by strong, narrow emission lines of [N II], [O II], [O III], and [S II], this feature is probably a shock due to ejected material running into stationary interstellar matter, slowly moving ejecta from a previous nova episode, or circumbinary matter present before 1901. An upper limit to the mass of the jet is of order a few times 10{sup -6} M{sub Sun }. If the jet mass is close to this limit then the jet might be an important, or even dominant mass sink from the binary system. The jet's faintness suggests that similar features could easily have been missed in other cataclysmic binaries.

Shara, Michael M.; Zurek, David; Mizusawa, Trisha [Department of Astrophysics, American Museum of Natural History, Central Park West and 79th street, New York, NY 10024-5192 (United States); De Marco, Orsola [Department of Physics, Macquarie University, Sydney (Australia); Williams, Robert; Livio, Mario [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)

2012-06-15T23:59:59.000Z

212

Painting in a sonic environment  

E-Print Network [OSTI]

The thesis explores how painting is affected by its sonic environment. The research stems from an artistic response to noise in the environment and how this can be explored through artistic practice. The boundaries of ...

Greated, Marianne

2014-06-27T23:59:59.000Z

213

Guest Editors' Introduction: Hostile Environments  

E-Print Network [OSTI]

Pervasive computing technology can save lives by both eliminating the need for humans to work in hostile environments and supporting them when they do. In general, environments that are hazardous to humans are hard on ...

Lukowicz, Paul

214

Environment Induced Time Arrow  

E-Print Network [OSTI]

The spread of the time arrows from the environment to an observed subsystem is followed within a harmonic model. A similarity is pointed out between irreversibility and a phase with spontaneously broken symmetry. The causal structure of interaction might be lost in the irreversible case, as well. The Closed Time Path formalism is developed for classical systems and shown to handle the time arrow problem in a clear and flexible manner. The quantum case is considered, as well, and the common origin of irreversibility and decoherence is pointed out.

Janos Polonyi

2012-06-25T23:59:59.000Z

215

Environment assisted electron capture  

E-Print Network [OSTI]

Electron capture by {\\it isolated} atoms and ions proceeds by photorecombination. In this process a species captures a free electron by emitting a photon which carries away the excess energy. It is shown here that in the presence of an {\\it environment} a competing non-radiative electron capture process can take place due to long range electron correlation. In this interatomic (intermolecular) process the excess energy is transferred to neighboring species. The asymptotic expression for the cross section of this process is derived. We demonstrate by explicit examples that under realizable conditions the cross section of this interatomic process can clearly dominate that of photorecombination.

Kirill Gokhberg; Lorenz S. Cederbaum

2009-11-09T23:59:59.000Z

216

Environment Feature Stories  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area. TheEPSCI Home It isGas SeparationsRelevantEnvironment

217

Paru dans : T. S. Cuesta y X. X. Neira, 2008, Auga e sustentabilidade. Enfoques para unha nova poltica de augas, Lugo, Universidade de Santiago de Compostela : 11-15.  

E-Print Network [OSTI]

1 Paru dans : T. S. Cuesta y X. X. Neira, 2008, Auga e sustentabilidade. Enfoques para unha nova (França) halshs-00510022,version1-17Aug2010 Author manuscript, published in "Auga e sustentabilidade

Boyer, Edmond

218

School of Environment and Sustainability  

E-Print Network [OSTI]

School of Environment and Sustainability Room 323, Kirk Hall 117 Science Place Saskatoon, SK S7N 5C8 Telephone: (306) 966-1985 E-mail: sens.info@usask.ca Master of Environment and Sustainability (MES) Opportunity Sustainability Science in the Delta Dialogue Network The School of Environment and Sustainability

Saskatchewan, University of

219

X-ray Eclipse Diagnosis of the Evolving Mass Loss in the Recurrent Nova U Scorpii 2010  

E-Print Network [OSTI]

We report the Suzaku detection of the earliest X-ray eclipse seen in the recurrent nova U Scorpii 2010. A target-of-opportunity observation 15 days after the outburst found a 27+/-5% dimming in the 0.2-1.0 keV energy band at the predicted center of an eclipse. In comparison with the X-ray eclipse depths seen at two later epochs by XMM-Newton, the source region shrank by about 10-20% between days 15 and 35 after the outburst. The X-ray eclipses appear to be deeper than or similar to contemporaneous optical eclipses, suggesting the X-ray and optical source region extents are comparable on day 15. We raise the possibility of the energy dependency in the photon escape regions, and that this would be a result of the supersoft X-ray opacity being higher than the Thomson scattering optical opacity at the photosphere due to bound-free transitions in abundant metals that are not fully ionized. Assuming a spherically symmetric explosion model, we constrain the mass-loss rate as a function of time. For a ratio of actual...

Takei, D; Tsujimoto, M; Ness, J -U; Osborne, J P; Starrfield, S; Kitamoto, S

2013-01-01T23:59:59.000Z

220

X-RAY ECLIPSE DIAGNOSIS OF THE EVOLVING MASS LOSS IN THE RECURRENT NOVA U SCORPII 2010  

SciTech Connect (OSTI)

We report the Suzaku detection of the earliest X-ray eclipse seen in the recurrent nova U Scorpii 2010. A target-of-opportunity observation 15 days after the outburst found a 27% {+-} 5% dimming in the 0.2-1.0 keV energy band at the predicted center of an eclipse. In comparison with the X-ray eclipse depths seen at two later epochs by XMM-Newton, the source region shrank by about 10%-20% between days 15 and 35 after the outburst. The X-ray eclipses appear to be deeper than or similar to contemporaneous optical eclipses, suggesting the X-ray and optical source region extents are comparable on day 15. We raise the possibility of the energy dependency in the photon escape regions, and that this would be a result of the supersoft X-ray opacity being higher than the Thomson scattering opacity at the photosphere due to bound-free transitions in abundant metals that are not fully ionized. Assuming a spherically symmetric model, we constrain the mass-loss rate as a function of time. For a ratio of actual to Thomson opacity of 10-100 in supersoft X-rays, we find an ejecta mass of about 10{sup -7}-10{sup -6} M{sub Sun }.

Takei, D.; Drake, J. J. [Smithsonian Astrophysical Observatory, 60 Garden Street, Cambridge, MA 02138 (United States); Tsujimoto, M. [Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, 3-1-1 Yoshino-dai, Chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan); Ness, J.-U. [European Space Agency, XMM-Newton Observatory SOC, SRE-OAX, Apartado 78, E-28691 Villanueva de la Canada, Madrid (Spain); Osborne, J. P. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Starrfield, S. [School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404 (United States); Kitamoto, S., E-mail: dtakei@head.cfa.harvard.edu [Department of Physics, Rikkyo University, 3-34-1 Nishi-Ikebukuro, Toshima, Tokyo 171-8501 (Japan)

2013-05-20T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Market Design Test Environments  

SciTech Connect (OSTI)

Power industry restructuring continues to evolve at multiple levels of system operations. At the bulk electricity level, several organizations charged with regional system operation are implementing versions of a Wholesale Power Market Platform (WPMP) in response to U.S. Federal Energy Regulatory Commission initiatives. Recently the Energy Policy Act of 2005 and several regional initiatives have been pressing the integration of demand response as a resource for system operations. These policy and regulatory pressures are driving the exploration of new market designs at the wholesale and retail levels. The complex interplay among structural conditions, market protocols, and learning behaviors in relation to short-term and longer-term market performance demand a flexible computational environment where designs can be tested and sensitivities to power system and market rule changes can be explored. This paper presents the use of agent-based computational methods in the study of electricity markets at the wholesale and retail levels, and distinctions in problem formulation between these levels.

Widergren, Steven E.; Sun, Junjie; Tesfatsion, Leigh

2006-06-18T23:59:59.000Z

222

Fast neutron environments.  

SciTech Connect (OSTI)

The goal of this LDRD project is to develop a rapid first-order experimental procedure for the testing of advanced cladding materials that may be considered for generation IV nuclear reactors. In order to investigate this, a technique was developed to expose the coupons of potential materials to high displacement damage at elevated temperatures to simulate the neutron environment expected in Generation IV reactors. This was completed through a high temperature high-energy heavy-ion implantation. The mechanical properties of the ion irradiated region were tested by either micropillar compression or nanoindentation to determine the local properties, as a function of the implantation dose and exposure temperature. In order to directly compare the microstructural evolution and property degradation from the accelerated testing and classical neutron testing, 316L, 409, and 420 stainless steels were tested. In addition, two sets of diffusion couples from 316L and HT9 stainless steels with various refractory metals. This study has shown that if the ion irradiation size scale is taken into consideration when developing and analyzing the mechanical property data, significant insight into the structural properties of the potential cladding materials can be gained in about a week.

Buchheit, Thomas Edward; Kotula, Paul Gabriel; Lu, Ping; Brewer, Luke N. (Naval Postgraduate School, Monterey, CA); Goods, Steven Howard (Sandia National Laboratories, Livermore, CA); Foiles, Stephen Martin; Puskar, Joseph David; Hattar, Khalid Mikhiel; Doyle, Barney Lee; Boyce, Brad Lee; Clark, Blythe G.

2011-10-01T23:59:59.000Z

223

Alaska Forum on the Environment  

Broader source: Energy.gov [DOE]

The Alaska Forum on the Environment is Alaska's largest statewide gathering of environmental professionals from government agencies, non-profit and for-profit businesses, community leaders, Alaskan...

224

Stretched Polymers in Random Environment  

E-Print Network [OSTI]

We survey recent results and open questions on the ballistic phase of stretched polymers in both annealed and quenched random environments.

Dmitry Ioffe; Yvan Velenik

2011-03-01T23:59:59.000Z

225

ENVIRONMENT, SAFETY, AND HEALTH (ESH)  

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

ENVIRONMENT, SAFETY, AND HEALTH (ESH) OBJECTIVE ESH.1: Line management has established programs to assure safe accomplishment of work. Personnel exhibit an awareness of public and...

226

Environments Journal of Arid Environments 67 (2006) 142156  

E-Print Network [OSTI]

, as a tool to promote carbon sequestration and offset the increasing atmospheric carbon dioxide concentrationJournal of Arid Environments Journal of Arid Environments 67 (2006) 142­156 Carbon sequestration-arid regions together with their widespread degradation give these areas a high potential to sequester carbon

Nacional de San Luis, Universidad

227

CUTEst: a Constrained and Unconstrained Testing Environment ...  

E-Print Network [OSTI]

May 5, 2013 ... The Constrained and Unconstrained Environment (CUTE) [3] and its .... architecture-dependent makefile information and environment vari-.

2013-05-05T23:59:59.000Z

228

Radioactivity in Food and the Environment, 2002  

E-Print Network [OSTI]

Radioactivity in Food and the Environment, 2002 RIFE - 8 2003 #12;1 ENVIRONMENT AGENCY ENVIRONMENT AND HERITAGE SERVICE FOOD STANDARDS AGENCY SCOTTISH ENVIRONMENT PROTECTION AGENCY Radioactivity in Food and the Environment, 2002 RIFE - 8 October 2003 #12;2 This report was compiled by the Centre for Environment

229

Spiral Structure and Galaxy Environment  

E-Print Network [OSTI]

Among 330 normal spirals of types Sa-Sc the fraction of objects exhibiting ``ring'', ``intermediate'' and ``spiral'' arm varieties does not correlated with environment. A similar conclusion appears to apply to the arm varieties of 123 barred spirals of types SBa-SBc. It is concluded that, among the northern Shapley-Ames galaxies, the distinction between the spiral and ring varieties of spiral arms is, within the accuracy of presently available data, independent of galaxy environment. This result suggests that the detailed morphology of spiral arms depends primarily on parent galaxy characteristics, rather than on the galactic environment.

Sidney van den Bergh

2002-04-30T23:59:59.000Z

230

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4: NetworkingEnvironment Environment Events Environment,AboutWPC

231

_____________________________ Environment, Health, & Safety _________ __________________ Training Program  

E-Print Network [OSTI]

, training requirements, work planning and control, traffic safety, Building 76 emergency information be applied · Recognize who is accountable for safety · Describe the purpose of a work authorization · Recall11/22/2011 _____________________________ Environment, Health, & Safety

Eisen, Michael

232

Global Environment Facility Evaluation Office  

E-Print Network [OSTI]

Global Environment Facility Evaluation Office PROTECTED AREAS AND AVOIDED DEFORESTATION #12;Protected Areas and Avoided Deforestation: An Econometric Evaluation - i - TABLE OF CONTENTS 1................................................................................4 3.3 ESTIMATED EFFECTS OF PROTECTED AREAS ON DEFORESTATION

Pfaff, Alex

233

Robot manipulation in human environments  

E-Print Network [OSTI]

Human environments present special challenges for robot manipulation. They are often dynamic, difficult to predict, and beyond the control of a robot engineer. Fortunately, many characteristics of these settings can be ...

Edsinger, Aaron Ladd, 1972-

2007-01-01T23:59:59.000Z

234

Robot Manipulation in Human Environments  

E-Print Network [OSTI]

Human environments present special challenges for robot manipulation. They are often dynamic, difficult to predict, and beyond the control of a robot engineer. Fortunately, many characteristics of these settings can be ...

Edsinger, Aaron

2007-01-16T23:59:59.000Z

235

DPC materials and corrosion environments  

SciTech Connect (OSTI)

This review focuses on the performance of basket materials that could be exposed to ground water over thousands of years, and prospective disposal overpack materials that could possibly be used to protect dual-purpose canisters (DPCs) in disposal environments.

Ilgen, Anastasia G.; Bryan, Charles R.; Stephanie Teich-McGoldrick; Ernest Hardin

2014-10-01T23:59:59.000Z

236

ENERGY, ENVIRONMENT AND SUSTAINABLE DEVELOPMENT  

E-Print Network [OSTI]

ENERGY, ENVIRONMENT AND SUSTAINABLE DEVELOPMENT E u r o p e a n C o m m i s s i o n Community Research P r o j e c t s y n o p s e s EUR 19359 Vol. I: Marine processes, ecosystems and interactions Eur - Energy, environment and sustainable development Contact: Mr. Klaus - Günther BARTHEL - rue de la Loi, 200

Döös, Kristofer

237

Undergraduate Degrees 2014 School of Earth & Environment  

E-Print Network [OSTI]

Undergraduate Degrees 2014 School of Earth & Environment FACULTY OF ENVIRONMENT #12;UNIVERSITYOFLEEDS 03 Contents Welcome to the School of Earth & Environment 4 Choosing the right degree 6 Three, MGeol, MGeophys) The MSc Track Fieldwork 8 Why study the environment? 10 Environment and Business 12

238

Radioactivity in Food and the Environment, 1997  

E-Print Network [OSTI]

Radioactivity in Food and the Environment, 1997 RIFE - 3 1998 SCOTTISH ENVIRONMENT PROTECTION SCOTTISH ENVIRONMENT PROTECTION AGENCY Radioactivity in Food and the Environment, 1997 September 1998 #12 Environment Protection Agency in 1997. Measurements of radioactivity have been carried out in a range

239

The superluminous SN DES13S2cmm as a signature of a Quark-Nova in a He-HMXB system  

E-Print Network [OSTI]

We show that by appealing to a Quark-Nova (the explosive transition of a neutron star to a quark star) occurring in an He-HMXB system we can account for the lightcurve of the first superluminous SN, DES13S2cmm, discovered by the Dark-Energy Survey. The neutron star's explosive conversion is triggered as a result of accretion from the He star wind. The dense, relativistic, Quark-Nova ejecta in turn triggers nuclear burning of the companion. We find an excellent fit to the bolometric light-curve of SN DES13S2cmm including the late time emission, which we attribute to the interaction between ejecta from the exploding He star (from the incinerated donor) and the surrounding circumstellar material from the companion (from the donor's wind during the pre-explosion era). The main hump in the light-curve is naturally fit by the quark star (the QN compact remnant) spin-down power. QNe occurring in He-HMXB systems could explain the puzzling lack of He-HMXBs expected to be associated with the observed large population o...

Ouyed, Rachid; Koning, Nico

2015-01-01T23:59:59.000Z

240

Arbeidslivets lover Act relating to working environment,  

E-Print Network [OSTI]

Arbeidslivets lover Act relating to working environment, working hours and employment protection, etc. (Working Environment Act). as subsequently amended, last by the Act of 14. December 2012 No. 80.notification................................................................... 6 Chapter 3. Working environment measures..................................... 6 Section.3

Johansen, Tom Henning

Note: This page contains sample records for the topic "nova scotia environment" 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

Learning Curve Management in Educational Programming Environments  

E-Print Network [OSTI]

Learning Curve Management in Educational Programming Environments Benjamin H. Brinckerhoff Computer programmers are best served by integrated development environments that adapt to their growing sophistication programming environments. We provide pedagogical justification for each goal, describe possible supporting

Goldman, Kenneth J.

242

Tanzania Traditional Energy Development and Environment Organization...  

Open Energy Info (EERE)

Traditional Energy Development and Environment Organization (TaTEDO) Jump to: navigation, search Name: Tanzania Traditional Energy Development and Environment Organization (TaTEDO)...

243

Effects on the Physical Environment (Hydrodynamics, Sediment...  

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

Effects on the Physical Environment (Hydrodynamics, Sediment Transport, and Water Quality) Effects on the Physical Environment (Hydrodynamics, Sediment Transport, and Water...

244

Independent Oversight Environment, Oak Ridge National Laboratory...  

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

Environment, Oak Ridge National Laboratory - June 2006 Independent Oversight Environment, Oak Ridge National Laboratory - June 2006 June 2006 Inspection of the Environmental...

245

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

246

Biblioteca Universitria -Novas aquisies  

E-Print Network [OSTI]

Paulo (SP): Brasiliense, 1994. 93 p. t. ex.: 1ELETROBRÁS. Dicionário da energia elétrica Eletrobrás.: 2REP?RTER Brasil: 10 anos de estrada de terra em 17 grandes reportagens. São Paulo: [s.n.], 2012 209 p. 1 #12;t. ex.: 5TAVARES, Elaine. Em busca da utopia: os caminhos da reportagem no Brasil dos anos

Floeter, Sergio Ricardo

247

Argonne materials scientist Vilas Pol (former postdoc) was recently featured on the PBS NOVA series "Making Stuff: Cleaner," where  

E-Print Network [OSTI]

innovative solutions to the grand challenges of our time: renewable and safe energy, a healthy environment-quarters of whom hold doctoral degrees. The laboratory's annual operating budget of around $670 million supports to transfer our technologies to the marketplace through licensing, joint research and many other collaborative

Kemner, Ken

248

Keeping the lead: How to strengthen shark conservation and management policies in Canada  

E-Print Network [OSTI]

Keeping the lead: How to strengthen shark conservation and management policies in Canada Aurelie, Canada B3H 4J1 b WWF-Canada, Halifax, Nova Scotia, Canada B3J 1P3 a r t i c l e i n f o Article history: Biodiversity conservation Bycatch Canada Fisheries management Sharks Threatened species a b s t r a c

Myers, Ransom A.

249

METEOROLOGICAL APPLICATIONS Meteorol. Appl. 18: 383405 (2011)  

E-Print Network [OSTI]

solar cycles combined with high surface albedo and long wave emissivity. The lim- ited geographical properties, can be obtained by using a light detection and ranging Correspondence to: G. J. Nott, Department of Physics and Atmo- spheric Science, 1459 Oxford Street, Dalhousie University, Halifax, Nova Scotia B3H 4R2

Duck, Thomas J.

2011-01-01T23:59:59.000Z

250

Biogeography of Marine Algae  

E-Print Network [OSTI]

Biogeography of Marine Algae David J Garbary, St Francis Xavier University, Antigonish, Nova Scotia and vicariance in establishing distributions and as factors associated with speciation. Since eukaryotic algae. There are many species that are virtually cosmopolitan (e.g. the green alga Enteromorpha intestinalis, the red

251

Revised April 2013 Faculty of Graduate Studies Website  

E-Print Network [OSTI]

of Applied Multiphase Thermal Engineering Nova Scotia CAD/CAM Centre Renewable Energy Storage Lab GRADUATE generation) Energy and Heat Transfer (renewable energy storage, energy conversion and management, heat, Phase Change and multiphase process, Renewable energy (Solan, Tidal), Energy Storage, Conversion

Lotze, Heike K.

252

2000 Blackwell Science Ltd. http://www.blackwell-science.com/ddi 113 BIODIVERSITY RESEARCH  

E-Print Network [OSTI]

and MICHAEL J. RISK3 1 Department of Geology, St Francis Xavier University, PO Box 5000, Antigonish, Nova Scotia, Canada B2G 2W5, 2 School of Geography and Geology, McMaster University, Hamilton, Ontario, Canada, overfishing, destructive fishing practices, oil spills and other forms of anthropogenic damage (Guzman et al

Kolasa, Jurek

253

37 | P a g e Activity 10  

E-Print Network [OSTI]

resources). · Baking ingredients · Table #12; 38 | P a g e · Sterile reused and recyclable. Online resources, creative posters on recycled newspaper or cardboard, and chalkgraffiti are all viable://www.gov.ns.ca/agri/marketing/recipes/seasons.pdf o Select Nova Scotia's resource page: http://www.selectnovascotia.ca · Inseason fruits

Brownstone, Rob

254

1 | P a g e ReThink! Sustainability Manual and Activities  

E-Print Network [OSTI]

to build a sustainable Dalhousie? In 2008, a focused effort to systematically tackle sustainability issues1 | P a g e ReThink! Sustainability Manual and Activities Office of Sustainability Dalhousie University 1226 Le Marchant St. Halifax, Nova Scotia B3H 3P7 Phone 19024947448 www.sustainability

Brownstone, Rob

255

46 | P a g e Activity 14  

E-Print Network [OSTI]

Time: 13 hours Place: A) Any local building of innovative sustainable design that is open://www.ecologyaction.ca/newhome/project.htm. · Faculty of Management: Kenneth Rowe Building. · Solar Nova Scotia: Guided sustainable home tour. For more of sustainability features of the new building on Coburg and LeMarchant and of sustainability upgrades. #12; 47

Brownstone, Rob

256

Vegetative and reproductive innovations of early land plants: implications for a  

E-Print Network [OSTI]

Vegetative and reproductive innovations of early land plants: implications for a uni ed phylogeny Karen Sue Renzaglia1 , R. Joel Du¡1 {, Daniel L. Nickrent1 and David J. Garbary2 1Department of Plant (renzaglia@plant.siu.edu) 2 Department of Biology, St Francis Xavier University, Antigonish, Nova Scotia

Nickrent, Daniel L.

257

North American Journal of Fisheries Management 22:770784, 2002 Copyright by the American Fisheries Society 2002  

E-Print Network [OSTI]

Hydroelectric Generating Station, Nova Scotia A. JAMIE F. GIBSON* Acadia Centre for Estuarine Research, Post structures such as the intake pipes at cooling water plants or the turbine intakes at hydroelectric abundance, behavior, and rates of passage at hydroelectric stations vary considerably in re- sponse

Myers, Ransom A.

258

CROP SCIENCE, VOL. 51, MARCHAPRIL 2011 585 Birdsfoot trefoil is a perennial forage legume grown for pas-  

E-Print Network [OSTI]

Canada. It is generally well adapted to poorly-drained, acidic, and drought-prone soils, which populations to unselected populations in field trials. Recurrent phenotypic selection was effective; Y.A. Papadopoulos, Agriculture and Agri-Food Canada, Nova Scotia Agri- cultural College, P.O. Box

Pawlowski, Wojtek

259

The completeness of taxonomic inventories for describing the global diversity and  

E-Print Network [OSTI]

The completeness of taxonomic inventories for describing the global diversity and distribution University, Halifax, Nova Scotia, Canada B3H 4J1 Taxonomic inventories (or species censuses) are the most to the completeness of taxonomic inventories can have far-reaching consequences. Here, we used the largest publicly

Myers, Ransom A.

260

Atmos. Chem. Phys., 11, 1176111775, 2011 www.atmos-chem-phys.net/11/11761/2011/  

E-Print Network [OSTI]

Atmos. Chem. Phys., 11, 11761­11775, 2011 www.atmos-chem-phys.net/11/11761/2011/ doi:10.5194/acp-11-11761-2011 © Author(s) 2011. CC Attribution 3.0 License. Atmospheric Chemistry and Physics Novel application, Canada 3Department of Physics and Atmospheric Science, Dalhousie University, Halifax, Nova Scotia, Canada

Martin, Randall

Note: This page contains sample records for the topic "nova scotia environment" 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

DELINEATION OF TILEFISH, LOPHOLATILUS CHAMAELEONTICEPS, STOCKS ALONG  

E-Print Network [OSTI]

. It was suggested that Mid- Atlantic Bight populations be treated as a separate stock and, as a working hypothesis, that South Atlantic and Gulf of Mexico populations be considered as a second stock. Tilefish, Lopholatilus chamaeleonticeps, are dis- tributed from southern Nova Scotia (Leim 1960; Markle et al. 1980) south to off Surinam

262

Environment, Safety and Health Reporting  

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

To ensure timely collection, reporting, analysis, and dissemination of information on environment, safety, and health issues as required by law or regulations or as needed to ensure that the Department of Energy (DOE) and National Nuclear Security Administration are kept fully informed on a timely basis about events that could adversely affect the health and safety of the public or the workers, the environment, the intended purpose of DOE facilities, or the credibility of the Department. Cancels DOE O 210.1, DOE O 231.1, DOE O 232.1A. Canceled by DOE O 231.1B. DOE O 231.1B cancels all portions pertaining to environment, safety, and health reporting. Occurrence reporting and processing of operations information provisions remain in effect until January 1, 2012.

2012-01-01T23:59:59.000Z

263

Linked Environments for Atmospheric Discovery Linked Environments for Atmospheric  

E-Print Network [OSTI]

Unidata Program Center #12;Linked Environments for Atmospheric Discovery The Team: 9 institutions and 105 MethodologyTraditional NWP Methodology STATIC OBSERVATIONS Radar Data Mobile Mesonets Surface Observations Satellites The Process is Entirely Prescheduled and Serial; It Does NOT Respond to the Weather! The Process

264

Yucca Mountain and The Environment  

SciTech Connect (OSTI)

The Yucca Mountain Project places a high priority on protecting the environment. To ensure compliance with all state and federal environmental laws and regulations, the Project established an Environmental Management System. Important elements of the Environmental Management System include the following: (1) monitoring air, water, and other natural resources; (2) protecting plant and animal species by minimizing land disturbance; (3) restoring vegetation and wildlife habitat in disturbed areas; (4) protecting cultural resources; (5) minimizing waste, preventing pollution, and promoting environmental awareness; and (6) managing of hazardous and non-hazardous waste. Reducing the impacts of Project activities on the environment will continue for the duration of the Project.

NA

2005-04-12T23:59:59.000Z

265

Environment, Safety, and Health Reporting  

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

To ensure timely collection, reporting, analysis, and dissemination of information on environment, safety, and health issues as required by law or regulations or as needed to ensure that the Department of Energy (DOE) and National Nuclear Security Administration (NNSA) are kept fully informed on a timely basis about events that could adversely affect the health and safety of the public or the workers, the environment, the intended purpose of DOE facilities, or the credibility of the Department. Cancels DOE O 210.1, DOE O 231.1, and DOE O 232.1A. Canceled by DOE O 232.2.

2003-08-19T23:59:59.000Z

266

EA-355 Scotia Capital Energy, Inc. | Department of Energy  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:Year in Review: TopEnergy DOEDealingVehicle1 Closing American Electric0-A S.A.C.94-A-B1 DC245

267

environment  

National Nuclear Security Administration (NNSA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartmentNationalRestart of the Review of theOFFICE OF CIVILAMENDMENT20/%2A6/%2A6/%2A en

268

Environment  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4: Networking

269

Air PSE (Problem Solving Environment)  

E-Print Network [OSTI]

PSE - 1 Air PSE (Problem Solving Environment) MODELLING OF AIR POLLUTION IN THE LOS ANGELES BASIN WITH AIR PSE Developed by Prof. Donald Dabdub Computational Environmental Sciences Laboratory Mechanical COMPUTER MODELS An air pollution model is a computer program that computes how the different chemical

Nizkorodov, Sergey

270

Virtual Control Systems Environment (VCSE)  

ScienceCinema (OSTI)

Will Atkins, a Sandia National Laboratories computer engineer discusses cybersecurity research work for process control systems. Will explains his work on the Virtual Control Systems Environment project to develop a modeling and simulation framework of the U.S. electric grid in order to study and mitigate possible cyberattacks on infrastructure.

Atkins, Will

2014-02-26T23:59:59.000Z

271

Environment-induced dynamical chaos  

E-Print Network [OSTI]

We examine the interplay of nonlinearity of a dynamical system and thermal fluctuation of its environment in the ``physical limit'' of small damping and slow diffusion in a semiclassical context and show that the trajectories of c-number variables exhibit dynamical chaos due to the thermal fluctuations of the bath.

Bidhan Chandra Bag; Deb Shankar Ray

2000-05-18T23:59:59.000Z

272

Star Formation and Galaxy Environment  

E-Print Network [OSTI]

The dependence of star formation rate on galaxian environment is a key issue in the understanding of galaxy formation and evolution. However, the study of this subject is complex and observationally challenging. This paper reviews some of the current results, drawing mostly from recent large redshift surveys such the LCRS, the MORPH collaboration, and the CNOC1 and CNOC2 redshift surveys.

H. K. C. Yee

2000-04-05T23:59:59.000Z

273

Virtual Control Systems Environment (VCSE)  

SciTech Connect (OSTI)

Will Atkins, a Sandia National Laboratories computer engineer discusses cybersecurity research work for process control systems. Will explains his work on the Virtual Control Systems Environment project to develop a modeling and simulation framework of the U.S. electric grid in order to study and mitigate possible cyberattacks on infrastructure.

Atkins, Will

2012-10-08T23:59:59.000Z

274

The Center for Indoor Environments  

E-Print Network [OSTI]

review of indoor air pollution in schools requested by the Environment Committee of the Connecticut risk 99 Industrial hygiene visit and walk- through assessment 99 Review of industrial hygiene interventions 99 Provide guidance on protecting occupants from exposures during construction 99 Coordinate

Kim, Duck O.

275

tight environment high radiation area  

E-Print Network [OSTI]

#12;Irradiation Studies of Optical Components - II CERN, week of Oct. 24, 2005 1.4 GeV proton beam 4 x· tight environment · high radiation area · non-serviceable area · passive components · optics only, no active electronics · transmit image through flexible fiber bundle Optical Diagnostics 01-13-2006 1 #12

McDonald, Kirk

276

Active Learning of Group-Structured Environments  

E-Print Network [OSTI]

Active Learning of Group-Structured Environments Gabor Bartok, Csaba Szepesvari , Sandra Zilles with their environment. We investigate learning environments that have a group structure. We introduce a learning model an environment from partial information is far from trivial. However, positive results for special subclasses

Szepesvari, Csaba

277

OBJECTIVES OF THE EDINBURGH KNOWLEDGE ENVIRONMENT  

E-Print Network [OSTI]

OBJECTIVES OF THE EDINBURGH KNOWLEDGE ENVIRONMENT PARTNERSHIP The University of Edinburgh, Heriot and natural environment. The Edinburgh Knowledge Environment Partnership will thus provide a unique research between key stakeholders in the built and natural environment and to reach out in assisting

Painter, Kevin

278

Using Usage Information in Collaborative Information Environments  

E-Print Network [OSTI]

Chalmers,M. Position paper, Proceedings of the Collaborative Virtual Environments Workshop: CVE96 (Nottingham University)

Chalmers, M.; Position paper, Proceedings of the Collaborative Virtual Environments Workshop: CVE96 (Nottingham University) [More Details

279

MOOSE: Multiphysics Object-Oriented Simulation Environment  

SciTech Connect (OSTI)

An overview of Idaho National Laboratory's MOOSE: Multiphysics Object-Oriented Simulation Environment

Gaston, Derek

2014-04-09T23:59:59.000Z

280

MOOSE: Multiphysics Object-Oriented Simulation Environment  

ScienceCinema (OSTI)

An overview of Idaho National Laboratory's MOOSE: Multiphysics Object-Oriented Simulation Environment

Gaston, Derek

2014-05-30T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Hubble Space Telescope imaging and ground-based spectroscopy of old nova shells - I. FH Ser, V533 Her, BT Mon, DK Lac, V476 Cyg  

E-Print Network [OSTI]

In this paper we report on the first five out of eleven observations in our programme of Hubble Space Telescope (HST) imaging of old nova shells. We present new WFPC2 images of the shells around FH Ser and V533 Her taken in the F656N (Halpha+[NII]) filter. We also show long-slit spectra taken using the William Herschel Telescope (WHT) in La Palma for these objects in the same spectral range. The shell around FH Ser is found to be a prolate ellipsoid of ellipticity 1.3 +/- 0.1 inclined at 62 +/- 4 deg to the line of sight. The shell has an equatorial ring which is found to be due to increased emission in the two [NII] lines rather than Halpha. The expansion velocity, systemic velocity and distance are found to be 490 +/- 20 km/s, -45 km/s and 950 +/- 50 pc. The origin of the [NII] equatorial ring is discussed in the context of a photoionization feature resulting from aspherical illumination by the central source rather than a simple density enhancement. It is possible however that the ring is also in part due to an extremely localised increase in the nitrogen abundance. Similar imaging and spectroscopy of the nova V533 Her reveal a shell of radius 5 +/- 0.7 arcsec with an axial ratio of 1.2 +/- 0.2, expansion velocity of 850 +/- 150 km/s and distance 1250 +/- 300 pc. The shells around BT Mon, DK Lac and V476 Cyg were not detected with HST.

C. D. Gill; T. J. O'Brien

2000-01-06T23:59:59.000Z

282

Environment, Safety and Health Reporting  

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

The order addresses DOE/NNSA receiving timely, accurate information about events that have affected or could adversely affect the health, safety and security of the public or workers, the environment, the operations of DOE facilities, or the credibility of the Department. Cancels DOE O 231.1A Chg 1, DOE M 231.1-1A Chg 2 and DOE N 234.1. Admin Chg 1, dated 11-28-12, cancels DOE O 231.1B.

2011-06-27T23:59:59.000Z

283

Coping with Hot Work Environments  

E-Print Network [OSTI]

exposed to these conditions. A hot work environment can impair safety and health. Both workers and their employers are responsi- ble for taking steps to prevent heat stress in the work- place. How Your Body Handles Heat Humans are warm-blooded, which... evaporation. Wiping sweat from the skin with a cloth also prevents cooling from evaporation. In hot, humid conditions, hard work becomes harder. The sweat glands release moisture and essential David W. Smith, Extension Safety Program The Texas A...

Smith, David

2005-04-28T23:59:59.000Z

284

Environment, Safety and Health Reporting  

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

The order addresses DOE/NNSA receiving timely, accurate information about events that have affected or could adversely affect the health, safety and security of the public or workers, the environment, the operations of DOE facilities, or the credibility of the Department. Cancels DOE O 231.1A Chg 1, DOE M 231.1-1A Chg 2 and DOE N 234.1. Admin Chg 1, dated 11-28-12.

2011-06-27T23:59:59.000Z

285

RNEDE: Resilient Network Design Environment  

SciTech Connect (OSTI)

Modern living is more and more dependent on the intricate web of critical infrastructure systems. The failure or damage of such systems can cause huge disruptions. Traditional design of this web of critical infrastructure systems was based on the principles of functionality and reliability. However, it is increasingly being realized that such design objectives are not sufficient. Threats, disruptions and faults often compromise the network, taking away the benefits of an efficient and reliable design. Thus, traditional network design parameters must be combined with self-healing mechanisms to obtain a resilient design of the network. In this paper, we present RNEDEa resilient network design environment that that not only optimizes the network for performance but tolerates fluctuations in its structure that result from external threats and disruptions. The environment evaluates a set of remedial actions to bring a compromised network to an optimal level of functionality. The environment includes a visualizer that enables the network administrator to be aware of the current state of the network and the suggested remedial actions at all times.

Venkat Venkatasubramanian, Tanu Malik, Arun Giridh; Craig Rieger; Keith Daum; Miles McQueen

2010-08-01T23:59:59.000Z

286

Quantum Capacities of Channels with small Environment  

E-Print Network [OSTI]

We investigate the quantum capacity of noisy quantum channels which can be represented by coupling a system to an effectively small environment. A capacity formula is derived for all cases where both system and environment are two-dimensional--including all extremal qubit channels. Similarly, for channels acting on higher dimensional systems we show that the capacity can be determined if the channel arises from a sufficiently small coupling to a qubit environment. Extensions to instances of channels with larger environment are provided and it is shown that bounds on the capacity with unconstrained environment can be obtained from decompositions into channels with small environment.

Michael M. Wolf; David Perez-Garcia

2006-07-11T23:59:59.000Z

287

Study of changes in the Solar Environment  

E-Print Network [OSTI]

Recent studies have shown that the local environment of the Sun is a complex one with the presence of several supernova shock bubbles and interstellar clouds. Even within this environment, the Sun is moving with a velocity of about 15 km/s toward the interior of the galaxy. We examine the changes in the local ISM environment experienced by the Sun in the past and then discuss the interaction of the Sun with these different environments. Lastly, we inquire how this must have changed the cosmic ray environment of the earth since this remains one of the few methods to test the changes in the local ISM environment over astronomical time scales. %

M N Vahia

2004-04-05T23:59:59.000Z

288

Environment, Health & Safety Division 31 July, 2009  

E-Print Network [OSTI]

Environment, Health & Safety Division 31 July, 2009 MEMORANDUM To: Division Safety Coordinators Division Liaisons All JHA Users From: John Seabury Environment, Health & Safety Division Subject: Job Hazard Analysis ­ Description of Work Rev 5 Discussion, Requirements, Helpful Hints and Examples

289

Environment, Safety, and Health Reporting Manual  

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

This Manual provides detailed requirements to supplement DOE O 231.1, ENVIRONMENT, SAFETY AND HEALTH REPORTING, which establishes management objectives and requirements for reporting environment, safety and health information. Chg 1, 11-7-96.

1996-11-07T23:59:59.000Z

290

Environment Safety and Health Reporting Manual  

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

This Manual provides detailed requirements to supplement DOE O 231.1, Environment, Safety and Health Reporting, which establishes management objectives and requirements for reporting environment, safety and health information. Does not cancel other directives.

1995-09-30T23:59:59.000Z

291

Environment assisted energy transfer in dimer system  

SciTech Connect (OSTI)

The influence of collective and multilocal environments on the energy transfer between the levels of a dimer is studied. The dynamics of energy transfer are investigated by considering coupling of collective environment with the levels of the dimer in the presence of both two individuals and mutually correlated multilocal environments. It is shown that every way of coupling we consider assists, though differently, the probability of transition between the levels of dimer. The probability of transition is strongly enhanced when the two local environments are mutually correlated. -- Highlights: The dynamics of energy transfer between the levels of a dimer are studied. Coupling of collective as well as individual environments are considered. The environments are in spin star configurations. The environment assists the energy transfer between the levels. For correlated multilocal environments, the transition probability is almost 100%.

Khan, Salman, E-mail: sksafi@comsats.edu.pk [Department of Physics, COMSATS Institute of Information Technology, Chak Shahzad, Islamabad (Pakistan)] [Department of Physics, COMSATS Institute of Information Technology, Chak Shahzad, Islamabad (Pakistan); Ibrahim, M.; Khan, M.K. [Department of Physics, Quaid-i-Azam University, Islamabad (Pakistan)] [Department of Physics, Quaid-i-Azam University, Islamabad (Pakistan)

2014-02-15T23:59:59.000Z

292

Quantum Darwinism in a hazy environment  

E-Print Network [OSTI]

Quantum Darwinism recognizes that we - the observers - acquire our information about the "systems of interest" indirectly from their imprints on the environment. Here, we show that information about a system can be acquired from a mixed-state, or hazy, environment, but the storage capacity of an environment fragment is suppressed by its initial entropy. In the case of good decoherence, the mutual information between the system and the fragment is given solely by the fragment's entropy increase. For fairly mixed environments, this means a reduction by a factor 1-h, where h is the haziness of the environment, i.e., the initial entropy of an environment qubit. Thus, even such hazy environments eventually reveal the state of the system, although now the intercepted environment fragment must be larger by ~1/(1-h) to gain the same information about the system.

Michael Zwolak; H. T. Quan; Wojciech H. Zurek

2009-10-09T23:59:59.000Z

293

FOOD STANDARDS AGENCY SCOTTISH ENVIRONMENT PROTECTION AGENCY  

E-Print Network [OSTI]

.................................................................................... 21 1.2.4. Food irradiation ....1 FOOD STANDARDS AGENCY SCOTTISH ENVIRONMENT PROTECTION AGENCY Radioactivity in Food, Fisheries and Aquaculture Science on behalf of the Food Standards Agency and the Scottish Environment

294

Analytical techniques for debugging pervasive computing environments  

E-Print Network [OSTI]

User level debugging of pervasive environments is important as it provides the ability to observe changes that occur in a pervasive environment and fix problems that result from these changes, especially since pervasive ...

Nigam, Atish, 1981-

2004-01-01T23:59:59.000Z

295

Toward an Integrated Online Learning Environment  

E-Print Network [OSTI]

We are building in LON-CAPA an integrated learning environment that will enable the development, dissemination and evaluation of PER-based material. This environment features a collection of multi-level research-based ...

Teodorescu, Raluca

296

Abundance measurements in stellar environments  

SciTech Connect (OSTI)

Most of what we know about stars, and systems of stars, is derived from the analysis of their electromagnetic radiation. This lesson is an attempt to describe to Physicists, without any Astrophysical background, the framework to understand the present status of abundance determination in stellar environments and its limit. These notes are dedicated to the recently passed, November 21, 2013, Prof. Dimitri Mihalas who spent his life confuting the 19th century positivist philosopher Auguste Comte who stated that we shall not at all be able to determine the chemical composition of stars.

Leone, F. [Universit di Catania, Dipartimento di Fisica e Astronomia, Sezione Astrofisica, Via S. Sofia 78, 95123 Catania (Italy)

2014-05-09T23:59:59.000Z

297

Harsh environments electronics : downhole applications.  

SciTech Connect (OSTI)

The development and operational sustainment of renewable (geothermal) and non-renewable (fossil fuel) energy resources will be accompanied by increasingly higher costs factors: exploration and site preparation, operational maintenance and repair. Increased government oversight in the wake of the Gulf oil spill will only add to the cost burden. It is important to understand that downhole conditions are not just about elevated temperatures. It is often construed that military electronics are exposed to the upper limit in terms of extreme service environments. Probably the harshest of all service conditions for electronics and electrical equipment are those in oil, gas, and geothermal wells. From the technology perspective, advanced materials, sensors, and microelectronics devices are benefificial to the exploration and sustainment of energy resources, especially in terms of lower costs. Besides the need for the science that creates these breakthroughs - there is also a need for sustained engineering development and testing. Downhole oil, gas, and geothermal well applications can have a wide range of environments and reliability requirements: Temperature, Pressure, Vibration, Corrosion, and Service duration. All too frequently, these conditions are not well-defifined because the application is labeled as 'high temperature'. This ambiguity is problematic when the investigation turns to new approaches for electronic packaging solutions. The objective is to develop harsh environment, electronic packaging that meets customer requirements of cost, performance, and reliability. There are a number of challenges: (1) Materials sets - solder alloys, substrate materials; (2) Manufacturing process - low to middle volumes, low defect counts, new equipment technologies; and (3) Reliability testing - requirements documents, test methods and modeling, relevant standards documents. The cost to develop and sustain renewable and non-renewable energy resources will continue to escalate within the industry. Downhole electronics can provide a very cost-effective approach for well exploration and sustainment (data logging). However, the harsh environments are a 'game-changer' in terms defining materials, assembly processes and the long-term reliability of downhole electronic systems. The system-level approach will enable the integration of each of these contributors - materials, processes, and reliability - in order to deliver cost-effective electronics that meet customer requirements.

Vianco, Paul Thomas

2011-03-01T23:59:59.000Z

298

Ariane Environment | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWendeGuo Feng Bio Energy Co LtdInformationAriane Environment

299

Balancing oil and environment... responsibly.  

SciTech Connect (OSTI)

Balancing Oil and EnvironmentResponsibly As the price of oil continues to skyrocket and global oil production nears the brink, pursuing unconventional oil supplies, such as oil shale, oil sands, heavy oils, and oils from biomass and coal has become increasingly attractive. Of particular significance to the American way is that our continent has significant quantities of these resources. Tapping into these new resources, however, requires cutting-edge technologies for identification, production, processing and environmental management. This job needs a super hero or two for a job of this size and proportion

Weimer, Walter C.; Teske, Lisa

2007-01-25T23:59:59.000Z

300

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety and Health

Note: This page contains sample records for the topic "nova scotia environment" 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

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety and HealthTraining

302

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety and HealthTrainingEHS

303

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety and

304

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety andSafety Minute Brief

305

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety andSafety Minute

306

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety andSafety

307

Environment/Health/Safety (EHS)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety andSafetyBerkeley Lab

308

Environment/Health/Safety Concerns  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, SafetyEHSSafetyConcernsEHS

309

Eco-innovation indicators European Environment Agency  

E-Print Network [OSTI]

Eco-innovation indicators European Environment Agency Copenhagen, February 2006 #12;Page 2 consisted of Timo Mkel, DG Environment, Pierre Valette, DG Research, and Bjrn Stigson World Business measure the progress made in implementing the Environment Technology Action Plan. Currently, the field

310

COOPER PAIR TRANSISTOR IN A TUNABLE ENVIRONMENT  

E-Print Network [OSTI]

COOPER PAIR TRANSISTOR IN A TUNABLE ENVIRONMENT S. Corlevi, W. Guichard, and D. B. Haviland* 1 measurements of the CPT, which are performed in a low impedance environment, the charging effects are observed as gate voltage modulation of the critical current. However, in a high impedance environment, a Coulomb

Haviland, David

311

RANDOM WALK IN DETERMINISTICALLY CHANGING ENVIRONMENT  

E-Print Network [OSTI]

RANDOM WALK IN DETERMINISTICALLY CHANGING ENVIRONMENT DMITRY DOLGOPYAT AND CARLANGELO LIVERANI Abstract. We consider a random walk with transition probabilities weakly dependent on an environment of the environment the walk satisfies the CLT. 1. Introduction The continuing interest in the limit properties

Liverani, Carlangelo

312

IN TELLIGENT CONTROLLING SYSTEM OF AQUICULTURE ENVIRONMENT  

E-Print Network [OSTI]

IN TELLIGENT CONTROLLING SYSTEM OF AQUICULTURE ENVIRONMENT Deshen Zhao ,*1 1 Department of Electric: The paper has analyzed present aquiculture conditions and controlling problems of water environment factors for the factory aquiculture, and specially solved the water environment control and so on the key questions

Paris-Sud XI, Universit de

313

Radioactivity in Food and the Environment, 2004  

E-Print Network [OSTI]

Radioactivity in Food and the Environment, 2004 RIFE - 10 2005 #12;Food Standards Agency Emergency Planning, Radiation and Incidents Division Aviation House 125 Kingsway London WC2B 6NH RadioactivityinFoodandtheEnvironment,2004 Scottish Environment ProtectionAgency Radioactive Substances Unit Erskine Court The Castle

314

Coevolution of compositional protocells and their environment  

E-Print Network [OSTI]

Coevolution of compositional protocells and their environment Barak Shenhav*, , Aia Oz and Doron of Science, Rehovot 76100, Israel The coevolution of environment and living organisms is well known in nature. Specifically, it is suggested that the chemical composition of the environment may have governed the chemical

Lancet, Doron

315

Adaptation in constant utility nonstationary environments  

E-Print Network [OSTI]

Adaptation in constant utility nonstationary environments Michael L. Littman & David H. Ackley Abstract Environments that vary over time present a fundamental problem to adaptive systems. Although adaptive opportunities. We consider a broad class of nonstationary environments, those which combine

Littman, Michael L.

316

Programming Environments for Novices Mark Guzdial  

E-Print Network [OSTI]

Programming Environments for Novices Mark Guzdial College of Computing, Georgia Institute of Technology guzdial@cc.gatech.edu May 7, 2003 1 Specializing Environments for Novices The task of specializing programming environments for novices begins with the recog- nition that programming is a hard skill to learn

Guzdial, Mark

317

LDTA'02 Preliminary Version The ELAN Environment  

E-Print Network [OSTI]

LDTA'02 Preliminary Version The ELAN Environment: a Rewriting Logic Environment based on ASF+SDF for the design and implementation of a new ELAN environment. The idea was to use the ASF+SDF parsing technology are not viewed as part of the ELAN syntax [6]. ASF+SDF technology The technology applied in the ASF+SDF Meta

Moreau, Pierre-Etienne

318

DCE DANISH CENTRE FOR ENVIRONMENT AND ENERGY  

E-Print Network [OSTI]

DCE ­ DANISH CENTRE FOR ENVIRONMENT AND ENERGY Director Hanne Bach hba@dmu.dk · +45 8715 1348 · ash@dmu.dk · +45 8715 1302 Legal counselling · Contracts Gry Bagger · gba@dmu.dk · +45 8715 1307 on environment and energy AARHUS UNIVERSITY DCE ­ DANISH CENTRE FOR ENVIRONMENT AND ENERGY AU DCE ­ DANISH CENTRE

319

The Environment Team to Waste & Recycling  

E-Print Network [OSTI]

The Environment Team A-Z Guide to Waste & Recycling www.le.ac.uk/environment #12;Welcome ...to the University of Leicester's `A-Z Guide to Waste and Recycling'. Over the last 3 years, the Environment Team has introduced an award- winning recycling scheme across the campus that allows us to recycle paper, plastics

St Andrews, University of

320

Mathematics of Planet Earth: Sustainable Human Environments  

E-Print Network [OSTI]

expansion continues, mathematical scientists can play key roles in shaping sustainable living environments1 Mathematics of Planet Earth: Sustainable Human Environments Fred Roberts Rutgers University #12 Clusters, beginning with workshops: Sustainable Human Environments (Rutgers U.), April 23-25, 2014 (this

Note: This page contains sample records for the topic "nova scotia environment" 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

Environment to Environment (E2E) Communication Systems for Collaborative Work  

E-Print Network [OSTI]

Environment to Environment (E2E) Communication Systems for Collaborative Work Ish Rishabh irishabh with intelligent sensing of environments, to provide effective bi-directional communication which is free from, connecting environments, sentient communication. ACM Classification Keywords H5.1. Multimedia information

Reif, Rafael

322

Energy/Environment/Economics (E3 Energy/Environment/Economics (E3  

E-Print Network [OSTI]

and trade environments in which they operate. IIT's Energy/Environment/Economics (E3 ) program was developedEnergy/Environment/Economics (E3 ) Energy/Environment/Economics (E3 ) Faculty Directors Chemical@iit.edu The ongoing evolution of the energy system and related global, environmental and economic issues make neces

Heller, Barbara

323

The ASF+SDF Meta-Environment: a Component-Based Language Development Environment  

E-Print Network [OSTI]

The ASF+SDF Meta-Environment: a Component-Based Language Development Environment M.G.J. van den and Computer Science, Utrecht University, Padualaan 14, 2584 CH Utrecht, The Netherlands Abstract. The ASF+SDF The ASF+SDF Meta-Environment [12] is an interactive development environment for the automatic gen- eration

Klint, Paul

324

The ASF+SDF MetaEnvironment: a ComponentBased Language Development Environment  

E-Print Network [OSTI]

The ASF+SDF Meta­Environment: a Component­Based Language Development Environment M.G.J. van den and Computer Science, Utrecht University, Padualaan 14, 2584 CH Utrecht, The Netherlands Abstract. The ASF+SDF The ASF+SDF Meta­Environment [12] is an interactive development environment for the automatic gen­ eration

Klint, Paul

325

Health, Safety, and Environment Division  

SciTech Connect (OSTI)

The primary responsibility of the Health, Safety, and Environmental (HSE) Division at the Los Alamos National Laboratory is to provide comprehensive occupational health and safety programs, waste processing, and environmental protection. These activities are designed to protect the worker, the public, and the environment. Meeting these responsibilities requires expertise in many disciplines, including radiation protection, industrial hygiene, safety, occupational medicine, environmental science and engineering, analytical chemistry, epidemiology, and waste management. New and challenging health, safety, and environmental problems occasionally arise from the diverse research and development work of the Laboratory, and research programs in HSE Division often stem from these applied needs. These programs continue but are also extended, as needed, to study specific problems for the Department of Energy. The results of these programs help develop better practices in occupational health and safety, radiation protection, and environmental science.

Wade, C [comp.] [comp.

1992-01-01T23:59:59.000Z

326

PIA - Savannah River Nuclear Solution SRNS ProRad Environment...  

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

SRNS ProRad Environment Management PIA - Savannah River Nuclear Solution SRNS ProRad Environment Management PIA - Savannah River Nuclear Solution SRNS ProRad Environment Management...

327

LM Environment, Safety, and Health Policy | Department of Energy  

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

Environment, Safety, and Health Policy LM Environment, Safety, and Health Policy LM Policy 450.9 - Environment, Safety, and Health Policy (Last ReviewUpdate 11292011 ) LM...

328

Advanced engineering environment collaboration project.  

SciTech Connect (OSTI)

The Advanced Engineering Environment (AEE) is a model for an engineering design and communications system that will enhance project collaboration throughout the nuclear weapons complex (NWC). Sandia National Laboratories and Parametric Technology Corporation (PTC) worked together on a prototype project to evaluate the suitability of a portion of PTC's Windchill 9.0 suite of data management, design and collaboration tools as the basis for an AEE. The AEE project team implemented Windchill 9.0 development servers in both classified and unclassified domains and used them to test and evaluate the Windchill tool suite relative to the needs of the NWC using weapons project use cases. A primary deliverable was the development of a new real time collaborative desktop design and engineering process using PDMLink (data management tool), Pro/Engineer (mechanical computer aided design tool) and ProductView Lite (visualization tool). Additional project activities included evaluations of PTC's electrical computer aided design, visualization, and engineering calculations applications. This report documents the AEE project work to share information and lessons learned with other NWC sites. It also provides PTC with recommendations for improving their products for NWC applications.

Lamph, Jane Ann; Pomplun, Alan R.; Kiba, Grant W.; Dutra, Edward G.; Dankiewicz, Robert J.; Marburger, Scot J.

2008-12-01T23:59:59.000Z

329

Environment - Giant outdoor lab ... | ornl.gov  

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

Environment - Giant outdoor lab ... With the recent completion of a 40-meter observation tower in the nearby Walker Branch Watershed, Oak Ridge National Laboratory researchers are...

330

Continuous quantum measurement in spin environments  

E-Print Network [OSTI]

We derive a formalism of stochastic master equations (SME) which describes the decoherence dynamics of a system in spin environments conditioned on the measurement record. Markovian and non-Markovian nature of environment can be revealed by a spectroscopy method based on weak quantum measurement (weak spectroscopy). On account of that correlated environments can lead to a nonlocal open system which exhibits strong non-Markovian effects although the local dynamics are Markovian, the spectroscopy method can be used to demonstrate that there is correlation between two environments.

Dong Xie; An Min Wang

2014-08-31T23:59:59.000Z

331

Assistant Manager for Safety and Environment  

Broader source: Energy.gov [DOE]

A successful candidate in this position will provide high quality and timely services to fulfill environment, safety, health, and quality programs and responsibilities. This includes oversight of...

332

A fluctuation theorem in a random environment  

E-Print Network [OSTI]

A simple class of chaotic systems in a random environment is considered and the fluctuation theorem is extended under the assumption of reversibility.

F. Bonetto; G. Gallavotti; G. Gentile

2006-04-29T23:59:59.000Z

333

CUTEst: a Constrained and Unconstrained Testing Environment ...  

E-Print Network [OSTI]

May 5, 2013 ... CUTEst: a Constrained and Unconstrained Testing Environment with safe threads. Nicholas Gould(nick.gould ***at*** stfc.ac.uk) Dominique...

Nicholas Gould

2013-05-05T23:59:59.000Z

334

a Constrained and Unconstrained Testing Environment, revisited  

E-Print Network [OSTI]

Mar 18, 2002 ... Abstract: The initial release of CUTE, a widely used testing environment for optimization software was described by Bongartz, Conn, Gould and...

N.I.M. Gould

2002-03-18T23:59:59.000Z

335

Measuring Galaxy Environments with Deep Redshift Surveys  

E-Print Network [OSTI]

We study the applicability of several galaxy environment measures (n^th-nearest-neighbor distance, counts in an aperture, and Voronoi volume) within deep redshift surveys. Mock galaxy catalogs are employed to mimic representative photometric and spectroscopic surveys at high redshift (z ~ 1). We investigate the effects of survey edges, redshift precision, redshift-space distortions, and target selection upon each environment measure. We find that even optimistic photometric redshift errors (\\sigma_z = 0.02) smear out the line-of-sight galaxy distribution irretrievably on small scales; this significantly limits the application of photometric redshift surveys to environment studies. Edges and holes in a survey field dramatically affect the estimation of environment, with the impact of edge effects depending upon the adopted environment measure. These edge effects considerably limit the usefulness of smaller survey fields (e.g. the GOODS fields) for studies of galaxy environment. In even the poorest groups and clusters, redshift-space distortions limit the effectiveness of each environment statistic; measuring density in projection (e.g. using counts in a cylindrical aperture or a projected n^th-nearest-neighbor distance measure) significantly improves the accuracy of measures in such over-dense environments. For the DEEP2 Galaxy Redshift Survey, we conclude that among the environment estimators tested the projected n^th-nearest-neighbor distance measure provides the most accurate estimate of local galaxy density over a continuous and broad range of scales.

Michael C. Cooper; Jeffrey A. Newman; Darren S. Madgwick; Brian F. Gerke; Renbin Yan; Marc Davis

2005-06-21T23:59:59.000Z

336

Observing the galaxy environment of QSOs  

E-Print Network [OSTI]

We outline our recently started program to investigate the galaxy environment of QSOs, in particular of radio-quiet objects at intermediate redshifts.

Klaus J"ager; Klaus J. Fricke; Jochen Heidt

1997-02-20T23:59:59.000Z

337

Independent Oversight Inspection of Environment, Safety, and...  

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

Inspection of Environment, Safety, and Health Programs at the Argonne National Laboratory, Technical Appendices, Volume II, May 2005 Independent Oversight Inspection of...

338

Independent Oversight Inspection of Environment, Safety, and...  

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

Inspection of Environment, Safety, and Health Programs at the Savannah River Operations Office and Savannah River Site, January 2010 Independent Oversight Inspection of...

339

Virtual Test Environment for Motion Capture Shoots.  

E-Print Network [OSTI]

?? This master thesis presents the design of an implementation of a working prototype for an augmented motion capture acting environment. Motion capture (MoCap), the (more)

Redavid, Claudio

2012-01-01T23:59:59.000Z

340

Corporate Governance, the Environment, and the Internet  

E-Print Network [OSTI]

contemporary society: Corporate governance at a crossroads.R. (1997). A survey of corporate governance. The Journal ofCorporate Governance, the Environment, and the Internet Jane

Andrew, Jane

2003-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Chimera: Hypertext for Heterogeneous Software Environments  

E-Print Network [OSTI]

Chimera: Hypertext for Heterogeneous Software Environments Kenneth M. Anderson, Richard N. Taylor the approach and presents an architecture which supports it. Experience with the Chimera prototype and its

Whitehead, James

342

ENVIRONMENT AL REVIEW for CATEGORICAL EXCLUSION DETERMINATION  

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

ENVIRONMENT AL REVIEW for CATEGORICAL EXCLUSION DETERMINATION Rocky Mountain Region, Western Area Power Administration Upper Molina-Lower Molina 115 kV Road Maintenance and...

343

ENERGY AND ENVIRONMENT DIVISION ANNUAL REPORT 1978  

E-Print Network [OSTI]

free environ- ment. Unlike incineration with air, which is areaction. Again, unlike incineration, which producesconventional method of incineration which is compatible with

Cairns, E.L.

2011-01-01T23:59:59.000Z

344

Global Climate Change: Environment, Technology and Society  

E-Print Network [OSTI]

. Appreciate the main aspects of hydropower resource estimation, turbine design, deployment and environmental AND ASSESSMENTS Global Climate Change: Environment, Technology and Society I am a Civil Hydraulic

Mumby, Peter J.

345

Extending Programming Environments to Support Architectural Design  

E-Print Network [OSTI]

environments are tightly integrated tool sets that support the production of source code in a programming, debugging, and source code browsing. These en­ vironments, however, do not necessarily support nota­ tions of programming environments 1 include Smalltalk [11] and Interlisp [28] from Xerox Parc, In­ tegral C [25] from

Holt, Richard C.

346

s Earth and environment s Living resources  

E-Print Network [OSTI]

4 s Earth and environment s Living resources s Societies and health s Expertise and consulting of this trend is the acquisition, on a joint proposal from the Earth and Environment department and the Living phenomena so as to improve forecasting of the attendant hazards. The earth's crust: processes and natural

347

Chimera: Hypermedia for Heterogeneous Software Development Environments  

E-Print Network [OSTI]

1 of 31 Chimera: Hypermedia for Heterogeneous Software Development Environments Abstract Emerging of "Chimera: Hypertext for Heterogeneous Software Environments," which appeared in the proceedings of ECHT'94 the approach employed by the Chimera open hypermedia system to address this research area, and also serves

Whitehead, James

348

CANADIAN PEAT HARVESTING AND THE ENVIRONMENT  

E-Print Network [OSTI]

CANADIAN PEAT HARVESTING AND THE ENVIRONMENT SECOND EDITION ISSUES PAPER, No. 2001-1 PUBLISHED IN PARTNERSHIP WITH: North American Wetlands Conservation Council Committee Canadian Sphagnum Peat Moss Tourbe de and funding of: Canadian Sphagnum Peat Moss Association Canadian Wildlife Service, Environment Canada

Laval, Universit

349

Mathematics of Planet Earth: Sustainable Human Environments  

E-Print Network [OSTI]

;2 Sustainable Human Environments · In 1900, only 13% of the world's population lived in cities. · By 2050 · As rapid city expansion continues, mathematical scientists can play key roles in shaping sustainable living1 Mathematics of Planet Earth: Sustainable Human Environments Fred Roberts Rutgers University #12

350

Location Privacy and the Personal Distributed Environment  

E-Print Network [OSTI]

Location Privacy and the Personal Distributed Environment Robert C Atkinson, Swee Keow Goo, James-- The Personal Distributed Environment is a new concept being developed within the Mobile VCE Core 3 research, wherever their location: ubiquitous access. Devices are co-ordinated by Device Management Entities (DMEs

Atkinson, Robert C

351

Phenomenological approach for describing environment dependent growths  

E-Print Network [OSTI]

Different classes of phenomenological universalities of environment dependent growths have been proposed. The logistic as well as environment dependent West-type allometry based biological growth can be explained in this proposed framework of phenomenological description. It is shown that logistic and environment dependent West-type growths are phenomenologically identical in nature. However there is a difference between them in terms of coefficients involved in the phenomenological descriptions. It is also established that environment independent and enviornment dependent biological growth processes lead to the same West-type biological growth equation. Involuted Gompertz function, used to describe biological growth processes undergoing atrophy or a demographic and economic system undergoing involution or regression, can be addressed in this proposed environment dependent description. In addition, some other phenomenological descriptions have been examined in this proposed framework and graphical representations of variation of different parameters involved in the description are executed.

Dibyendu Biswas; Swarup Poria

2014-12-22T23:59:59.000Z

352

Execution Environments for Parallel ApplicationsDept. d'Arquitectura de Computadors Execution Environments for  

E-Print Network [OSTI]

Execution Environments for Parallel ApplicationsDept. d'Arquitectura de Computadors UPC Execution Environments for Parallel Applications Master CANS 2007/2008 Departament d'Arquitectura de Computadors Universitat Politècnica de Catalunya #12;Dept. d'Arquitectura de Computadors Execution Environments

Corbalan, Julita

353

Execution Environments for Parallel ApplicationsDept. d'Arquitectura de Computadors Execution Environments for  

E-Print Network [OSTI]

Execution Environments for Parallel ApplicationsDept. d'Arquitectura de Computadors Execution Environments for Parallel Applications Master CANS 2007/2008 Departament d'Arquitectura de Computadors Universitat Politècnica de Catalunya Dept. d'Arquitectura de Computadors Execution Environments for Parallel

Corbalan, Julita

354

Extracting Information from Qubit-Environment Correlations  

E-Print Network [OSTI]

Most works on open quantum systems generally focus on the reduced physical system by tracing out the environment degrees of freedom. Here we show that the qubit distributions with the environment are essential for a thorough analysis, and demonstrate that the way that quantum correlations are distributed in a quantum register is constrained by the way in which each subsystem gets correlated with the environment. For a two-qubit system coupled to a common dissipative environment $\\mathcal{E}$, we show how to optimise interqubit correlations and entanglement via a quantification of the qubit-environment information flow, in a process that, perhaps surprisingly, does not rely on the knowledge of the state of the environment. To illustrate our findings, we consider an optically-driven bipartite interacting qubit $AB$ system under the action of $\\mathcal{E}$. By tailoring the light-matter interaction, a relationship between the qubits early stage disentanglement and the qubit-environment entanglement distribution is found. We also show that, under suitable initial conditions, the qubits energy asymmetry allows the identification of physical scenarios whereby qubit-qubit entanglement minima coincide with the extrema of the $A\\mathcal{E}$ and $B\\mathcal{E}$ entanglement oscillations.

John H. Reina; Cristian E. Susa; Felipe F. Fanchini

2014-12-23T23:59:59.000Z

355

Depositional environments of the Kodiak Shelf, Alaska  

E-Print Network [OSTI]

'te ?eel i 9/I !, . jor S h!est; O? anoo! aphJ DEPOSITIONAL ENVIRONMENTS OF THE KODIAK SHELF, ALASKA A Thesis by STUART PETER BURBACH Approved as to sty1e and content by: (Chairman of Committee ( ead of Department) (Member) (Member) December 1977... -'DSTRRCT Depositional Environments of the Kodiak ', elf, Alaska. (December 1977) Stuart Peter Burbach, B. P, . , University of Ifisconsin at Iililv!aukee Chairman of Cidvfsory Committee: Dr. I!illiam B. Bryant Four depositional environments are defined...

Burbach, Stuart Peter

1977-01-01T23:59:59.000Z

356

Qualitatitive description : light in the urban environment  

E-Print Network [OSTI]

The quality of our built environment is difficult to describe and to regulate; using light as an example, this thesis develops a descriptive framework using elementary, dynamic and connective forms. The combination of these ...

Stuebing, Susan

1986-01-01T23:59:59.000Z

357

Built Environment Analysis Tool: April 2013  

SciTech Connect (OSTI)

This documentation describes the tool development. It was created to evaluate the effects of built environment scenarios on transportation energy and greenhouse gas (GHG) emissions. This documentation also provides guidance on how to apply the tool.

Porter, C.

2013-05-01T23:59:59.000Z

358

Towards a poly-phon-ic environment  

E-Print Network [OSTI]

This thesis explores an architectural/landscape environment where polyphonic metaphors are the means for exploration and investigation. Polyphonic, as described in musical definitions/ terms, is the style of composition ...

Wu, Jesse, 1972-

1998-01-01T23:59:59.000Z

359

2015 Tribal Lands and Environment Forum  

Broader source: Energy.gov [DOE]

The Institute for Tribal Environmental Professionals (ITEP) are hosting the annual Tribal Lands and Environment Forum. The four-day forum will feature special trainings, field trips, and breakout...

360

Environment Assisted Metrology with Spin Qubit  

E-Print Network [OSTI]

We investigate the sensitivity of a recently proposed method for precision measurement [Phys. Rev. Lett. 106, 140502 (2011)], focusing on an implementation based on solid-state spin systems. The scheme amplifies a quantum sensor response to weak external fields by exploiting its coupling to spin impurities in the environment. We analyze the limits to the sensitivity due to decoherence and propose dynamical decoupling schemes to increase the spin coherence time. The sensitivity is also limited by the environment spin polarization; therefore we discuss strategies to polarize the environment spins and present a method to extend the scheme to the case of zero polarization. The coherence time and polarization determine a figure of merit for the environment's ability to enhance the sensitivity compared to echo-based sensing schemes. This figure of merit can be used to engineer optimized samples for high-sensitivity nanoscale magnetic sensing, such as diamond nanocrystals with controlled impurity density.

P. Cappellaro; G. Goldstein; J. S. Hodges; L. Jiang; J. R. Maze; A. S. Srensen; M. D. Lukin

2012-01-12T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

An environment-mediated quantum deleter  

E-Print Network [OSTI]

Environment-induced decoherence presents a great challenge to realizing a quantum computer. We point out the somewhat surprising fact that decoherence can be useful, indeed necessary, for practical quantum computation, in particular, for the effective erasure of quantum memory in order to initialize the state of the quantum computer. The essential point behind the deleter is that the environment, by means of a dissipative interaction, furnishes a contractive map towards a pure state. We present a specific example of an amplitude damping channel provided by a two-level system's interaction with its environment in the weak Born-Markov approximation. This is contrasted with a purely dephasing, non-dissipative channel provided by a two-level system's interaction with its environment by means of a quantum nondemolition interaction. We point out that currently used state preparation techniques, for example using optical pumping, essentially perform as quantum deleters.

R. Srikanth; Subhashish Banerjee

2007-04-24T23:59:59.000Z

362

Control of single spin in Markovian environment  

E-Print Network [OSTI]

In this article we study the control of single spin in Markovian environment. Given an initial state, we compute all the possible states to which the spin can be driven at arbitrary time, under the assumption that fast ...

Yuan, Haidong

363

The Environments of SLACS Gravitational Lenses  

E-Print Network [OSTI]

We report on an investigation of the environments of the SLACS sample of gravitational lenses. The local and global environments of the lenses are characterized using SDSS photometry and, when available, spectroscopy. We find that the lens systems that are best modelled with steeper than isothermal density profiles are more likely to have close companions than lenses with shallower than isothermal profiles. This suggests that the profile steepening may be caused by interactions with a companion galaxy as indicated by N-body simulations of group galaxies. The global environments of the SLACS lenses are typical of non-lensing SDSS galaxies with comparable properties to the lenses, and the richnesses of the lens groups are not as strongly correlated with the lens density profiles as the local environments. Furthermore, we investigate the possibility of line-of-sight contamination affecting the lens models but do not find a significant over-density of sources compared to lines of sight without lenses.

M. W. Auger

2007-10-09T23:59:59.000Z

364

Probing the Environment with Galaxy Dynamics  

E-Print Network [OSTI]

I present various projects to study the halo dynamics of elliptical galaxies. This allows one to study the outer mass and orbital distributions of ellipticals in different environments, and the inner distributions of groups and clusters themselves.

Aaron J. Romanowsky

2006-05-02T23:59:59.000Z

365

Nuclear Power - Operation, Safety and Environment  

E-Print Network [OSTI]

as operation, safety, environment and radiation effects. The book is not offering a comprehensive coverage of the material in each area. Instead, selected themes are highlighted by authors of individual chapters representing contemporary interests worldwide...

366

Green Features Tour Duke Environment Hall Landscaping  

E-Print Network [OSTI]

and irrigation. Rainwater is collected: · From the Duke Environment Hall roof collected from the new building's roof and site paving. The building itself with a variety of water-wise edible plants, and irrigated with recycled rainwater

Reif, John H.

367

Line Environment, Safety and Health Oversight  

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

Sets forth the Department's expectations line management environment, safety and health (ES&H) oversight and for the use of contractor self-assessment programs as the cornerstone for this oversight. Canceled by DOE O 226.1.

1997-06-26T23:59:59.000Z

368

Environment Assisted Metrology with Spin Qubit  

E-Print Network [OSTI]

We investigate the sensitivity of a recently proposed method for precision measurement [Phys. Rev. Lett. 106, 140502 (2011)], focusing on an implementation based on solid-state spin systems. The scheme amplifies a quantum sensor response to weak external fields by exploiting its coupling to spin impurities in the environment. We analyze the limits to the sensitivity due to decoherence and propose dynamical decoupling schemes to increase the spin coherence time. The sensitivity is also limited by the environment spin polarization; therefore we discuss strategies to polarize the environment spins and present a method to extend the scheme to the case of zero polarization. The coherence time and polarization determine a figure of merit for the environment's ability to enhance the sensitivity compared to echo-based sensing schemes. This figure of merit can be used to engineer optimized samples for high-sensitivity nanoscale magnetic sensing, such as diamond nanocrystals with controlled impurity density.

Cappellaro, P; Hodges, J S; Jiang, L; Maze, J R; Srensen, A S; Lukin, M D

2012-01-01T23:59:59.000Z

369

Essays on trade, CO?, and the environment  

E-Print Network [OSTI]

The first chapter of this thesis uses a general equilibrium model of trade and the environment to investigate two questions. First, how do the gains from trade compare against the environmental costs of trade? Trade can ...

Shapiro, Joseph S

2013-01-01T23:59:59.000Z

370

QualityofService Issues in Networking Environments  

E-Print Network [OSTI]

Quality­of­Service Issues in Networking Environments Burkhard Stiller \\Lambda University: +44 +1223 334476, FAX: +44 +1223 334678 E­Mail: Burkhard.Stiller@cl.cam.ac.uk Abstract Quality

Haddadi, Hamed

371

Simplified methodology for indoor environment designs  

E-Print Network [OSTI]

Current design of the building indoor environment uses averaged single parameters such as air velocity, air temperature or contaminant concentration. This approach gives only general information about thermal comfort and ...

Srebric, Jelena, 1970-

2000-01-01T23:59:59.000Z

372

Key Implications of the Global Economic Environment  

E-Print Network [OSTI]

Key Implications of the Global Economic Environment For PCT Filings: A Survey of the Issues DMI...............................................................................9 Annex 1: Incentives for Patent Filing: The Analytical Framework...........................11 I-1 Intellectual property, innovation, and economic growth.................................13 2-2 Individual

Lansky, Joshua

373

CORROSION OF METALS IN OIL SHALE ENVIRONMENTS  

E-Print Network [OSTI]

CORROSION OF METALS IN OIL SHALE ENVIRONMENTS A. Levy and R.of Metals in In-Situ Oil Shale Retorts," NACE Corrosion 80,Corrosion of Oil Shale Retort Component Materials," LBL-

Bellman Jr., R.

2012-01-01T23:59:59.000Z

374

Autonomous Flight in Unknown Indoor Environments  

E-Print Network [OSTI]

This paper presents our solution for enabling a quadrotor helicopter, equipped with a laser rangefinder sensor, to autonomously explore and map unstructured and unknown indoor environments. While these capabilities are ...

Bachrach, Abraham Galton

375

Webinar: Tapping Into Wind in Urban Environments  

Broader source: Energy.gov [DOE]

This live webinar presented by DOE on"Community Renewable Energy Success Stories: Tapping into Wind in Urban Environments" will take placeon Tuesday, September 18, 2012, from 3:00 4:15 p.m....

376

Enabling environments : people, wheelchairs and standards  

E-Print Network [OSTI]

Designing environments to accommodate people in wheelchairs is far more than ramps and wide toilet stalls built according to the state building code. This study attempts to illuminate the functional imperatives behind ...

Duerk, Donna P

1980-01-01T23:59:59.000Z

377

Emerging contaminants and microorganisms into the environment  

E-Print Network [OSTI]

Workshop Emerging contaminants and microorganisms into the environment: contamination pathways Environmental Engineering Division Surname _____________________Name____________________ Job Environmental Engineering Division (SEED) Department of Civil Engineering University of Salerno Via Ponte don

Costagliola, Gennaro

378

CORROSION OF METALS IN OIL SHALE ENVIRONMENTS  

E-Print Network [OSTI]

Elevated Temperature Corrosion of Oil Shale Retort Componentin In-Situ Oil Shale Retorts," NACE Corrosion 80, Paper No.6-10, 1981 CORROSION OF METALS IN OIL SHALE ENVIRONMENTS A.

Bellman Jr., R.

2012-01-01T23:59:59.000Z

379

Scheduling information broadcast in asymmetric environment  

E-Print Network [OSTI]

With the increasing popularity of portable wireless computers, mechanisms to efficiently transmit information to such clients are of significant interest. The environment under consideration is asymmetric in that the information server has...

Hameed, Sohail

1997-01-01T23:59:59.000Z

380

Responsibility and the traditional Muslim built environment  

E-Print Network [OSTI]

This study aims to analyze the effect of the responsibility enjoyed by individuals over the built environment. To understand these effects the study concentrates on the physical state of the property. It is concluded that ...

Akbar, Jamel A

1984-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

RECYCLING: SUPPLY, ECONOMICS, ENVIRONMENT, AND TECHNOLOGY  

E-Print Network [OSTI]

RECYCLING: SUPPLY, ECONOMICS, ENVIRONMENT, AND TECHNOLOGY Panel Discussion Roundtable Moderator: S, although higher market values for recyclable will certainly stimulate increased interest in collection in recycling and deinking technologies and process design among North American, European, and Pacific Rim

Abubakr, Said

382

CORROSION OF METALS IN OIL SHALE ENVIRONMENTS  

E-Print Network [OSTI]

CORROSION OF METALS IN OIL SHALE ENVIRONMENTS A. Levy and R.of Metals in In-Situ Oil Shale Retorts," NACE Corrosion 80,Elevated Temperature Corrosion of Oil Shale Retort Component

Bellman Jr., R.

2012-01-01T23:59:59.000Z

383

Sustainable and equitable urban environments in Asia  

E-Print Network [OSTI]

This study identifies some of the factors and conditions that can encourage the development of sustainable and equitable urban environments. It argues that cities will continue to grow and that it is not productive to view ...

Badshah, Akhtar

1993-01-01T23:59:59.000Z

384

A light emitting object and its environment  

E-Print Network [OSTI]

The object that is intentionally produced with the inherent spirit of "Fine Art," will always be placed with a reverence for its setting. "LIGHT GRID" is a light sculpture with flexibility to utilize the environment where ...

Jeibmann, Jon Karl

1983-01-01T23:59:59.000Z

385

Environment, Safety, and Health Reporting Manual  

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

This Manual provides detailed requirements to supplement DOE O 231.1, Environment, Safety and Health Reporting, which establishes management objectives and requirements for reporting environment, safety and health information. (Paragraphs 2a, 2a(1), 2a(2), 2b, 2b(1), 2b(2), and 2i(3)(a) through 2i(3)(d) of Chapter II, and Appendix A canceled by DOE N 231.1; Chapter IV canceled by DOE O 470.2A.)

2000-01-28T23:59:59.000Z

386

Polymer translocation into laterally unbounded confined environments  

E-Print Network [OSTI]

Using Langevin dynamics simulations in three dimensions (3D), we investigate the dynamics of polymer translocation into the regions between two parallel plane walls with separation $R$ under a driving force $F$, respectively. Compared with an unconfined environment, the translocation dynamics is greatly changed due to the crowding effect of the partially translocated monomers. Translocation time $\\tau$ initially decreases rapidly with increasing $R$ and then saturates for larger $R$, and the confined environment leads to a nonuniversal dependence of $\\tau$ on $F$.

Kaifu Luo; Ralf Metzler

2010-04-12T23:59:59.000Z

387

Indoor Environment Program. 1992 Annual Report  

SciTech Connect (OSTI)

This paper reports progress during the year 1992 in the Indoor Environment Program in the Energy and Environment Division of Lawrence Berkeley Laboratory. Studies in the following areas are reported: energy performance and ventilation in buildings; physical and chemical characterization of indoor air pollutants; indoor radon; indoor air quality; exposure to indoor air pollutants and risk analysis. Pollutants of particular interest include: radon; volatile, semi-volatile and particulate organic compounds; and combustion emissions including environmental tobacco smoke, carbon monoxide, and nitrogen oxides.

Daisey, J.M.

1993-06-01T23:59:59.000Z

388

Active vibration control in a microgravity environment  

E-Print Network [OSTI]

ACTIVE VIBRATION COiVTROL IN A MICROGRAVITY ENVIRONMENT A Thesis MYOUNG SOO PARK Submitted to the Graduate College of Texas A@M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 1987 Maior... Subject: Mechanical Engineering ACTIVE VIBRATION CONTROL IN A MICROGRAVITY ENVIRONMENT A Thesis by MYOUNG SOO PARK Approved as to style and content by: Dr. C. H. Gerhold (Chairman of Coxnmit tee) Dr. T ozi (Member) Dr. Y. XVe sman (Member) Dr...

Park, Myoung Soo

1987-01-01T23:59:59.000Z

389

Environment/Health/Safety (EHS): JHA  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series toESnet4: NetworkingEnvironment Environment Events

390

Talking In Circles: Designing A Spatially-Grounded Audioconferencing Environment  

E-Print Network [OSTI]

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

391

National Environmental Research Institute Ministry of the Environment . Denmark  

E-Print Network [OSTI]

National Environmental Research Institute Ministry of the Environment . Denmark Air Quality Research Institute Ministry of the Environment Air Quality Monitoring Programme Annual Summary for 2004 Berkowicz and Jrgen Brandt Department: Department of Atmospheric Environment Serial title and no.: NERI

392

National Environmental Research Institute Ministry of the Environment . Denmark  

E-Print Network [OSTI]

National Environmental Research Institute Ministry of the Environment . Denmark Air Quality Research Institute Ministry of the Environment Air Quality Monitoring Programme Annual Summary for 2003: Department of Atmospheric Environment Serial title and no.: NERI Technical Report No. 497 Publisher: National

393

GENOTYPE x ENVIRONMENT INTERACTIONS (1) J. C. BOWMAN  

E-Print Network [OSTI]

GENOTYPE x ENVIRONMENT INTERACTIONS (1) J. C. BOWMAN Department of Agriculture, University of Reading, Great Britain SUMMARY A genotype x environment interaction may be defined as a change in the relative perfor- mance of a 'environments

Boyer, Edmond

394

META-ENVIRONMENTS FOR SOFTWARE PRODUCTION ANTHONY S. KARRER  

E-Print Network [OSTI]

META-ENVIRONMENTS FOR SOFTWARE PRODUCTION ANTHONY S. KARRER Computer Science Department, Loyola December 1994 Researchers who create software production environments face considerable problems. Soft- ware production environments are large systems that are costly to develop. Furthermore, soft- ware

Scacchi, Walt

395

Presence in a Distributed Virtual Environment for Cooperative Visualization  

E-Print Network [OSTI]

Presence in a Distributed Virtual Environment for Cooperative Visualization Juan Casanueva of computer networks and computer graphics technology, Collabora- tive Virtual Environments are becoming-Supported Collaborative Work (CSCW). Collaborative Vir- tual Environments involve the use of a distributed architecture

Blake, Edwin

396

Events & Topics in Renewable Energy & the Environment featuring...  

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

Events & Topics in Renewable Energy & the Environment featuring Chenyang Lu Events & Topics in Renewable Energy & the Environment featuring Chenyang Lu Smart Buildings with...

397

Chapter 23 - Environment, Energy and Water Efficiency, Renewable...  

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

Chapter 23 - Environment, Energy and Water Efficiency, Renewable Energy Technologies, Occupational Safety, and Drug-free Workplace. Chapter 23 - Environment, Energy and Water...

398

Optimizing Radiation Protection of the Public and the Environment...  

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

Optimizing Radiation Protection of the Public and the Environment at the Department of Energy Optimizing Radiation Protection of the Public and the Environment at the Department of...

399

Office of Environment, Safety and Health Assessments Protocol...  

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

the requirements and responsibilities for conducting and managing the Office of Environment, Safety and Health Assessments required reading program. Office of Environment,...

400

CENTER FOR THE STUDY OF METALS IN THE ENVIRONMENT  

E-Print Network [OSTI]

CENTER FOR THE STUDY OF METALS IN THE ENVIRONMENT Annual Report Submitted to: U.S. Environmental of Contents Unit World Model for Metals in Aquatic Environments

Sparks, Donald L.

Note: This page contains sample records for the topic "nova scotia environment" 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

Inspection of Environment, Safety, and Health Management at the...  

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

Inspection of Environment, Safety, and Health Management at the Argonne National Laboratory - East, Volume I, May 2002 Inspection of Environment, Safety, and Health Management at...

402

Environment, Safety, and Health Special Review, Department of...  

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

Environment, Safety, and Health Special Review, Department of Energy Laboratories - August 2008 Environment, Safety, and Health Special Review, Department of Energy Laboratories -...

403

Environment - U.S. Energy Information Administration (EIA) -...  

Gasoline and Diesel Fuel Update (EIA)

Power Plant Environmental International Emissions All Environment Data Reports Analysis & Projections All Reports environment State CO2 Emissions Data for: 2012 | Release Date:...

404

affect business environment: Topics by E-print Network  

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

test environment configuration and utilization, lack of automation and comprehensive tooling, and the unavailability of test environments can impact the quality of testing and...

405

Local environment and composition of magnesium gallium layered...  

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

Local environment and composition of magnesium gallium layered double hydroxides determined from solid-state 1H and 71Ga NMR Local environment and composition of magnesium gallium...

406

German Federal Ministry for the Environment, Nature Conservation...  

Open Energy Info (EERE)

map References: German Federal Ministry for the Environment, Nature Conservation and Nuclear Safety1 German Federal Ministry for the Environment, Nature Conservation and...

407

Selective reduction of NOx in oxygen rich environments with plasma...  

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

reduction of NOx in oxygen rich environments with plasma-assisted catalysis: Catalyst development and mechanistic studies Selective reduction of NOx in oxygen rich environments...

408

Effects on the Physical Environment (Hydrodynamics, and Water...  

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

Effects on the Physical Environment (Hydrodynamics, and Water Quality Food Web) Effects on the Physical Environment (Hydrodynamics, and Water Quality Food Web) Effects on the...

409

Before the Subcommittee on Energy and Environment - House Committee...  

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

Environment - House Committee on Science, Space, and Technology Before the Subcommittee on Energy and Environment - House Committee on Science, Space, and Technology Testimony of...

410

Office of Environment, Safety and Health Evaluations Appraisal...  

Energy Savers [EERE]

Office of Environment, Safety and Health Evaluations Appraisal Process Guide, July 29, 2009 Office of Environment, Safety and Health Evaluations Appraisal Process Guide, July 29,...

411

Work Environment It is important to note the specific criteria you are seeking in a work environment  

E-Print Network [OSTI]

Work Environment It is important to note the specific criteria you are seeking in a work environment as you consider various career paths and again as you evaluate actual job opportunities. Circle work environment preferences

Kay, Mark A.

412

Universidade Nova de Lisboa Description  

E-Print Network [OSTI]

it the 20th largest suspension bridge in the world. It looks eerily very much like the Golden Gate Bridge stunning sights in Lisbon is the 25 de Abril Bridge which stretches for around 2,277 meters, making

Bristol, University of

413

How does clustering depend on environment?  

E-Print Network [OSTI]

According to the current paradigm, galaxies form and reside in extended cold dark matter (CDM) halos and in turn are key tracers of cosmological structure. Understanding how different types of galaxies occupy halos of different masses is one of the major challenges facing extragalactic astrophysics. The observed galaxy properties depend on the environment surrounding the galaxy. Within the framework of most galaxy formation models the environmental dependence of the galaxy population is mainly due to the change of the halo mass function with large-scale environment. Such models make precise predictions for how galaxy clustering should depend on environment. We will illustrate this by presenting analytical models of dark matter and galaxy clustering along with results obtained from numerical simulations. With these results we can hope to obtain a better understanding of the link between galaxies and dark matter and thereby constrain galaxy formation models.

Ummi Abbas; Ravi K. Sheth

2004-05-13T23:59:59.000Z

414

System Management Software for Virtual Environments  

SciTech Connect (OSTI)

Recently there has been an increased interest in the use of system-level virtualization using mature solutions such as Xen, QEMU, or VMWare. These virtualization platforms are being used in distributed and parallel environments including high performance computing. The use of virtual machines within such environments introduces new challenges to system management. These include tedious tasks such as deploying para-virtualized host operating systems to support virtual machine execution or virtual overlay networks to connect these virtual machines. Additionally, there is the problem of machine definition and deployment, which is complicated by differentiation in the underlying virtualization technology. This paper discusses tools for the deployment and management of both host operating systems and virtual machines in clusters. We begin with an overview of system-level virtualization and move on to a description of tools that we have developed to aid with these environments. These tools extend prior work in the area of cluster installation, configuration and management.

Vallee, Geoffroy R [ORNL; Naughton, III, Thomas J [ORNL; Scott, Stephen L [ORNL

2007-01-01T23:59:59.000Z

415

The galactic environment of the Sun  

E-Print Network [OSTI]

The interstellar cloud surrounding the solar system regulates the galactic environment of the Sun and constrains the physical characteristics of the interplanetary medium. This paper compares interstellar dust grain properties observed within the solar system with dust properties inferred from observations of the cloud surrounding the solar system. Properties of diffuse clouds in the solar vicinity are discussed to gain insight into the properties of the diffuse cloud complex flowing past the Sun. Evidence is presented for changes in the galactic environment of the Sun within the next 10$^4$--10$^6$ years. The combined history of changes in the interstellar environment of the Sun, and solar activity cycles, will be recorded in the variability of the ratio of large- to medium-sized interstellar dust grains deposited onto geologically inert surfaces. Combining data from lunar core samples in the inner and outer solar system will assist in disentangling these two effects.

P. C. Frisch

1999-10-22T23:59:59.000Z

416

Extremely Metal-Poor Galaxies: The Environment  

E-Print Network [OSTI]

We have analyzed bibliographical observational data and theoretical predictions, in order to probe the environment in which extremely metal-poor dwarf galaxies (XMPs) reside. We have assessed the HI component and its relation to the optical galaxy, the cosmic web type (voids, sheets, filaments and knots), the overdensity parameter and analyzed the nearest galaxy neighbours. The aim is to understand the role of interactions and cosmological accretion flows in the XMP observational properties, particularly the triggering and feeding of the star formation. We find that XMPs behave similarly to Blue Compact Dwarfs; they preferably populate low-density environments in the local Universe: ~60% occupy underdense regions, and ~75% reside in voids and sheets. This is more extreme than the distribution of irregular galaxies, and in contrast to those regions preferred by elliptical galaxies (knots and filaments). We further find results consistent with previous observations; while the environment does determine the frac...

Filho, M E; Muoz-Tun, C; Nuza, S E; Kitaura, F; He, S

2015-01-01T23:59:59.000Z

417

Environment Environment  

E-Print Network [OSTI]

Company Purchased an area of Acharossan Forest (125 hectares). Since then they have improved local access development in our area." Community applicant National Forest Land Scheme #12;NFLS - summary report | 3 include: business development, timber production, woodland crofts, renewable energy, allotments

418

EnvironmentEnvironment New Mexico is a state of scenic beauty, an  

E-Print Network [OSTI]

EnvironmentEnvironment New Mexico is a state of scenic beauty, an inspiration for artists Albuquerque, NM 87106 (505) 272-7764, optics@unm.edu The University of New Mexico is an Affirmative Action in alternate formats upon request. Founded in 1889, The University of New Mexico (UNM) has become one

New Mexico, University of

419

Built Environment Energy Analysis Tool Overview (Presentation)  

SciTech Connect (OSTI)

This presentation provides an overview of the Built Environment Energy Analysis Tool, which is designed to assess impacts of future land use/built environment patterns on transportation-related energy use and greenhouse gas (GHG) emissions. The tool can be used to evaluate a range of population distribution and urban design scenarios for 2030 and 2050. This tool was produced as part of the Transportation Energy Futures (TEF) project, a Department of Energy-sponsored multi-agency project initiated to pinpoint underexplored strategies for abating GHGs and reducing petroleum dependence related to transportation.

Porter, C.

2013-04-01T23:59:59.000Z

420

Conformational properties of polymers in anisotropic environments  

E-Print Network [OSTI]

We analyze the conformational properties of polymer macromolecules in solutions in presence of extended structural obstacles of (fractal) dimension $\\varepsilon_d$ causing the anisotropy of environment. Applying the pruned-enriched Rosenbluth method (PERM), we obtain numerical estimates for scaling exponents and universal shape parameters of polymers in such environments for a wide range $0<\\varepsilon_d<2$ in space dimension $d=3$. An analytical description of the model is developed within the des Cloizeaux direct polymer renormalization scheme. Both numerical and analytical studies qualitatively confirm the existence of two characteristic length scales of polymer chain in directions parallel and perpendicular to the extended defects.

K. Haydukivska; V. Blavatska

2014-07-11T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Autonomous land navigation in a structured environment  

SciTech Connect (OSTI)

This paper describes a hardware and software system developed to perform autonomous navigation of a land vehicle in a structured environment. The vehicle used for development and testing of the system was the Jeep Cherokee Mobile Robotics Testbed Vehicle developed at Sandia National Laboratories in Albuquerque. Since obstacle detection and avoidance have not yet been incorporated into the system, a structured environment is postulated that presumes the paths to be traversed are free of obstacles. The system performs path planning and execution based on maps constructed using the vehicle's on board navigation system and map-maker. The system software, hardware and performance data are discussed.

Klarer, P.R. (Sandia National Lab., Advanced Technology Div., Albuquerque, NM (US))

1990-03-01T23:59:59.000Z

422

Autonomous land navigation in a structured environment  

SciTech Connect (OSTI)

This paper describes a hardware and software system developed to perform autonomous navigation of a land vehicle in a structured environment. The vehicle used for development and testing of the system was the Jeep Cherokee Mobile Robotics Testbed Vehicle developed at Sandia National Laboratories in Albuquerque. Since obstacle detection and avoidance have not yet been incorporated into the system, a structured environment is postulated that presumes the paths to be traversed are free of obstacles. The system performs path planning and execution based on maps constructed using the vehicle's onboard navigation system and mapmaker. The system software, hardware, and performance data are discussed. 6 refs.

Klarer, P.R.

1989-01-01T23:59:59.000Z

423

Extending Programming Environments to Support Architectural Design  

E-Print Network [OSTI]

integrated tool sets that support the production of source code in a programming language. They usually comprise tools for editing often syntax directed, compiling, executing, debugging, and source code browsing 28 from Xerox Parc, Integral C 25 from Tektronics, and the Turbo environments from Borland

Mancoridis, Spiros

424

REACTIVE ENVIRONMENTS AND AUGMENTED MEDIA SPACES  

E-Print Network [OSTI]

REACTIVE ENVIRONMENTS AND AUGMENTED MEDIA SPACES by Jeremy R. Cooperstock A thesis submitted in conformity with the requirements for the degree of Doctor of Philosophy Graduate Department of Electrical and Computer Engineering University of Toronto © Copyright by Jeremy R. Cooperstock, 1996 #12;ii REACTIVE

Cooperstock, Jeremy R.

425

Natural radiation environment III. [Lead Abstract  

SciTech Connect (OSTI)

Separate abstracts were prepared for the 52 research papers presented at this symposium in April 1978. The major topics in this volume deal with penetrating radiation measurements, radiation surveys and population exposure, radioactivity in the indoor environment, and technologically enhanced natural radioactivity. (KRM)

Gesell, T.F.; Lowder, W.M. (eds.)

1980-01-01T23:59:59.000Z

426

ENVIRONMENT, SAFETY, HEALTH, AND QUALITY DIVISION  

E-Print Network [OSTI]

for its scope of work (the prime prepares a site-specific safety plan content and approval form for each Subcontractor Safety: Non-green Work Procedure [SLAC-I-730-0A21C-024].) Project Name PR # SLAC Project ContactsENVIRONMENT, SAFETY, HEALTH, AND QUALITY DIVISION Chapter 42: Subcontractor Safety Site

Wechsler, Risa H.

427

Green Virtual Enterprises and their Breeding Environments  

E-Print Network [OSTI]

Green Virtual Enterprises and their Breeding Environments David Romero, Arturo Molina Tecnológico. This paper introduces a Green Virtual Enterprise (GVE) model as an emerging sustainable manufacturing and logistics mode focused on offering, delivering and recovering green products to/from the market, under

Paris-Sud XI, Université de

428

MAINTAINING PRIVACY IN RFID ENABLED ENVIRONMENTS  

E-Print Network [OSTI]

future. Yet, as RFID tags enter consumer households and threaten to identify their owners' belongingsMAINTAINING PRIVACY IN RFID ENABLED ENVIRONMENTS Proposal for a disable-model Sarah Spiekermann1 functionality into RFID tags. The present article argues that killing tags at the store exit is, however

Freytag, Johann-Christoph

429

NETL- Severe Environment Corrosion Erosion Facility  

ScienceCinema (OSTI)

NETL's Severe Environment Corrosion Erosion Facility in Albany studies how new and old materials will stand up to new operating conditions. Work done in the lab supports NETL's oxy-fuel combustion oxidation work, refractory materials stability work, and the fuels program, in particular the hydrogen membrane materials stability work, to determine how best to upgrade existing power plants.

None

2014-06-16T23:59:59.000Z

430

THE BURNING OF BIOMASS Economy, Environment, Health  

E-Print Network [OSTI]

THE BURNING OF BIOMASS Economy, Environment, Health Kees Kolff, MD, MPH April 21, 2012 #12;OUR TRUCKS OF BIOMASS/ DAY (Currently 82) #12;BAD FOR THE ECONOMY · Taxpayers will pay 50% - tax credits, etc · Not a cogen project so only 25% efficient · Biomass better for biofuels, not electricity · MILL JOBS

431

MATLAB as an Environment for Bayesian Computation  

E-Print Network [OSTI]

MATLAB as an Environment for Bayesian Computation Jim Albert 1 Bowling Green State University July 1997 1 Address for correspondence: Department of Mathematics and Statistics, Bowling Green State University, Bowling Green, OH 43403, USA. #12; Abstract The current status of Bayesian software is reviewed

Albert, James H.

432

Built-Environment Wind Turbine Roadmap  

SciTech Connect (OSTI)

Although only a small contributor to total electricity production needs, built-environment wind turbines (BWTs) nonetheless have the potential to influence the public's consideration of renewable energy, and wind energy in particular. Higher population concentrations in urban environments offer greater opportunities for project visibility and an opportunity to acquaint large numbers of people to the advantages of wind projects on a larger scale. However, turbine failures will be equally visible and could have a negative effect on public perception of wind technology. This roadmap provides a framework for achieving the vision set forth by the attendees of the Built-Environment Wind Turbine Workshop on August 11 - 12, 2010, at the U.S. Department of Energy's National Renewable Energy Laboratory. The BWT roadmap outlines the stakeholder actions that could be taken to overcome the barriers identified. The actions are categorized as near-term (0 - 3 years), medium-term (4 - 7 years), and both near- and medium-term (requiring immediate to medium-term effort). To accomplish these actions, a strategic approach was developed that identifies two focus areas: understanding the built-environment wind resource and developing testing and design standards. The authors summarize the expertise and resources required in these areas.

Smith, J.; Forsyth, T.; Sinclair, K.; Oteri, F.

2012-11-01T23:59:59.000Z

433

The Molokai Dispatch COMMUNITY DEVELOPMENT, ENERGY, ENVIRONMENT  

E-Print Network [OSTI]

fifth of Molokai's electricity comes from photovoltaic (PV) energy from business and residential solar of problems, according to Richard Rocheleau, director of the University of Hawaii's Hawaii Natural EnergyThe Molokai Dispatch COMMUNITY DEVELOPMENT, ENERGY, ENVIRONMENT Thursday, November 14th, 2013

434

Virtualized Environments for the Harness Workbench  

E-Print Network [OSTI]

Of The Requirements For The Degree Of Master of Science In Network Centered Computing, High Performance Computing of computational sciences today leads to a signicant need of high performance computing systems. High performance to develop an appropriate development and runtime environment for high performance computing platforms

Engelmann, Christian

435

Memory in the system: trajectory-environment  

E-Print Network [OSTI]

In the paper the memory effect in the system consisting from a trajectory of process and an environment is considered. The environment is presented by scalar potential and noise. The evolution of system is interpreted as process of the continuous "measurement" of a trajectory by an environment and\\or on the contrary. In this sense the measured value is entropy-the information about embedding of the trajectory into configurations space. The concepts "measurement" and "interaction" are identified alike in quantum theory. Thus, the entropy evolution is not only the effect of dynamics, but also its cause, if it is possible to speak about causality in this case. It is shown, that such non-elastic interaction leads to occurrence of memory in the system. The reflex memory mechanism is realized as a real conformal dynamic metrics. The metastable event (attractor) is defined and time of its life is estimated. It is shown, that in the system there is a change of dynamic modes from spatial localization to random walk (fluctuation, relaxation). On scale of the attractors dynamics the memory is appearing as a semi-regular (in some information sense) drift of the image of fluctuations in a power spectrum of environment to absolute minimum. The latter properties (topological convergence) attract the attention to algorithmic aspect of a considered system.

Maxim Budaev

2007-08-10T23:59:59.000Z

436

The Crab pulsar and its environment  

E-Print Network [OSTI]

We present new data of the Crab pulsar and its environment. Images taken in the infrared with ISAAC allow us to measure the pulsar spectrum and to reveal the red knot close to the pulsar. Complementary optical data from VLT and HST are presented. The full article, with full resolution nice color images, is presented in Messenger, 107, 32

Jesper Sollerman; Veronica Flyckt

2002-04-29T23:59:59.000Z

437

How `heredity' and `environment' shape galaxy properties  

E-Print Network [OSTI]

In this review, I give a brief summary of galaxy evolution processes in hierarchical cosmologies and of their relative importance at different masses, times, and environments. I remind the reader of the processes that are commonly included in modern semi-analytic models of galaxy formation, and I comment on recent results and open issues.

Gabriella De Lucia

2006-11-10T23:59:59.000Z

438

School of Civil Engineering and the Environment  

E-Print Network [OSTI]

1 School of Civil Engineering and the Environment Forecasting the Use of New Local Railway Stations Using GIS Simon Blainey Transportation Research Group Supervisor: Prof. John Preston School of Civil increased since privatisation · Existing models inaccurate · Better demand forecasts needed School of Civil

Anderson, Jim

439

ENVIRONMENT, SAFETY & HEALTH DIVISION Chapter 24: Training  

E-Print Network [OSTI]

ENVIRONMENT, SAFETY & HEALTH DIVISION Chapter 24: Training Quick Start Summary Product ID: 520-group.slac.stanford.edu/esh/eshmanual/references/trainingQuickstart.pdf 1 Who needs to know about these requirements The requirements of Training apply to all persons on-site, employees and non-employees, their SLAC

Wechsler, Risa H.

440

Study of Pollutant Dispersion in Urban Environments  

E-Print Network [OSTI]

power plant using coal releases great amounts of harmful gases to produce the electric energy head: Study of pollutant dispersion in urban environments #12;Abstract Computational simulations can mechanics with the use of computer models and simulations. In this study the simulations of the complex

Allen, Gabrielle

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


441

NETL- Severe Environment Corrosion Erosion Facility  

SciTech Connect (OSTI)

NETL's Severe Environment Corrosion Erosion Facility in Albany studies how new and old materials will stand up to new operating conditions. Work done in the lab supports NETL's oxy-fuel combustion oxidation work, refractory materials stability work, and the fuels program, in particular the hydrogen membrane materials stability work, to determine how best to upgrade existing power plants.

None

2013-09-12T23:59:59.000Z

442

Environment and Land in Bushbuckridge, South Africa  

E-Print Network [OSTI]

Environment and Land in Bushbuckridge, South Africa © 2002, Professor Robert Thornton Department of Anthropology University of the Witwatersrand, Johannesburg, South Africa Acknowledgements: Research), and by the Centre for Science Development, Human Sciences Research Council, Pretoria, South Africa. Printed:24 April

443

Collaborative Editor Environments for Player Programs  

E-Print Network [OSTI]

SSL #11-12 #12;2 #12;3 Collaborative Editor Environments for Player Programs Sonny Thai, Dr. Alvar Saenz-Otero May 2012 SSL #11-12 This work is based on the unaltered text of the thesis by Sonny Thai

444

Editorial Commentary Energy and environment is  

E-Print Network [OSTI]

years, providing useful information not only on the potential of energy technologies based: an editorial essay How to cite this article: WIREs Energy Environ 2014, 3:1­2. doi: 10.1002/wene.104 The first highlight key perspectives: technology, systems, economy, policy, security, and environmental impact, all

Delaware, University of

445

America's Children and the Environment Third Edition  

E-Print Network [OSTI]

, the potential impacts of early life exposures to chemicals, and disease disparities in minority children Health and Disease Prevention Research, in partnership with the National Institute of Environmental to present the U.S. Environmental Protection Agency's America's Children and the Environment, Third Edition

Balasundaram, Balabhaskar "Baski"

446

Technological Change, Industry Structure and the Environment  

E-Print Network [OSTI]

applied to the projection of GHG emissions from the energy sector" (p.141). This paper extends the work qualitatively in terms of changes in production scale and resource intensity and their resulting impact technological changes are bound to have important implications for the future state of the environment

Watson, Andrew

447

Department of Architecture and Built Environment  

E-Print Network [OSTI]

of Sydney Sydney Australia The University of Western Australia Perth Australia The University of British Australia The University of Melbourne Melbourne Australia Deakin University Geelong, near Melbourne Australia For students from Architecture & Built Environment only The University of Newcastle Newcastle, New

Hopkins, Gail

448

FrontiersinEcology and the Environment  

E-Print Network [OSTI]

and management of freshwater ecosystems? Julian D Olden, Christopher P Konrad, Theodore S Melis, Mark J Kennard, Mary C Freeman, Meryl C Mims, Erin N Bray, Keith B Gido, Nina P Hemphill, David A Lytle, Laura E McMullen, Mark Pyron, Christopher T Robinson, John C Schmidt, and John G Williams Front Ecol Environ 2014; doi:10

Pyron, Mark

449

Virtualizing Operating Systems for Seamless Distributed Environments  

E-Print Network [OSTI]

Virtualizing Operating Systems for Seamless Distributed Environments 1 Tom Boyd and Partha Dasgupta of the "Computing Communities" project, a joint effort between Arizona State University and New York University. Abstract Applications and operating systems can be augmented with extra functionality by injecting

Dasgupta, Partha

450

Low Oxygen Environments in Chesapeake Bay  

E-Print Network [OSTI]

Low Oxygen Environments in Chesapeake Bay Jeremy Testa Chesapeake Biological Laboratory University of Maryland Center for Environmental Science Why we care about low oxygen? What causes low oxygen? Where and When does Chesapeake Bay lose oxygen? #12;#12;Hypoxia and Chesapeake Animals Low dissolved oxygen

Boynton, Walter R.

451

FrontiersinEcology and the Environment  

E-Print Network [OSTI]

temperatures, partial melting of the polar ice caps, ocean acidification, and a host of other impacts on EarthFrontiersinEcology and the Environment Do trophic cascades affect the storage and flux RESEARCH COMMUNICATIONS Do trophic cascades affect the storage and flux of atmospheric carbon? An analysis

Wilmers, Chris

452

ucsf sustainability healthy environment, sustainable future  

E-Print Network [OSTI]

ucsf sustainability healthy environment, sustainable future UC SAN FRANCISCO ANNUAL REPORT FY 2009-2010 Annual Report of the Chancellor's Advisory Committee on Sustainability #12;TABLE OF CONTENTS Executive Summary 1 UCSF Sustainability Governance 3 Table 1: CACS Members 4 Figure 1: UCSF Sustainability

Yamamoto, Keith

453

BRINGING AROUND REAL CHANGE JOBS. ECONOMY. ENVIRONMENT.  

E-Print Network [OSTI]

BRINGING AROUND REAL CHANGE JOBS. ECONOMY. ENVIRONMENT. INNOVATIVE ENERGY EFFICIENCY FINANCE stewardship of public resources BENEFIT LOCAL COMMUNITY THROUGH JOB CREATION BENEFITS OF ENERGY EFFICIENCY SOLUTIONS #12;K-12 school districts spend more than $8B annually on energy Energy costs are second only

California at Davis, University of

454

Laser Micromachining: Advantages of Liquid Environments  

E-Print Network [OSTI]

Laser Micromachining: Advantages of Liquid Environments Marc J. Palmeri Princeton University Arnold Lab #12;Outline · Motivation ­ Applications of laser micromachining ­ Problems with laser micromachining · How do lasers work? · What is laser micromachining? · Micromachining assembly · Methods

Petta, Jason

455

Mercury Pollution in the Marine Environment  

E-Print Network [OSTI]

Mercury Pollution in the Marine Environment The Coastal and Marine Mercury Ecosystem Research stakeholders to form C-MERC, the Coastal and Marine Mercury Ecosystem Research Collaborative. The goal was to review current knowledge--and knowledge gaps--relating to a global environmental health problem, mercury

Shepherd, Simon

456

FrontiersinEcology and the Environment  

E-Print Network [OSTI]

FrontiersinEcology and the Environment Stream restoration strategies for reducing river nitrogen). Natural resource managers are now asking how restoration of stream ecosystems might reduce the downstream turned to ecological restoration as a tool for reducing N loading. While more than 30% of the stream

Bledsoe, Brian

457

TRANSFORMING health society culture economy environment  

E-Print Network [OSTI]

TRANSFORMING health society culture economy environment #12;0302 04 32 62 92 110 132 #12;5 health resistant to current treatments. An added advantage is that the phage can be freeze-dried for long Professions, and one of its projects, headed by Professor Ann Moore, sets out to see if a type of exercise

Bontcheva, Kalina

458

transform your thinking transform your environment  

E-Print Network [OSTI]

MBA #12;transform your thinking 2 transform your environment 18 transform your career 26 start your transformation now 34 transform yourself www.olin.wustl.edu/MBA #12;What distinguishes Washington University. But a great business school transforms the way you think, lead and give back to the world community. #12

Subramanian, Venkat

459

CSM: Earth, Energy, Environment 2013 Annual Faculty  

E-Print Network [OSTI]

colleges · Capital Programs and Academic Space ­ ~$70M in new Academic buildings ­ Continued pressure and expect/demand technology integrated into delivery ­ We have successfully navigated a difficult decade, and responsibility for developing a better world. #12;CSM: Earth, Energy, Environment Critical Questions to consider

460

Neutrino mixing and oscillations in astrophysical environments  

SciTech Connect (OSTI)

A brief review of the current status of neutrino mixing and oscillations in astrophysical environments, with particular emphasis on the Sun and core-collapse supernovae, is given. Implications of the existence of sterile states which mix with the active neutrinos are discussed.

Balantekin, A. B. [Physics Department, University of Wisconsin, Madison WI 53706 (United States)

2014-05-02T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

The Engineering, Energy and Environment Trinity College Dublin  

E-Print Network [OSTI]

technology designs that mediate mankind's experience in enhanced environments: cognitive environments and environment. The technology designs and human interventions proposed by the E3 will be optimal, becauseE3 The Engineering, Energy and Environment Institute of Trinity College Dublin Full Strategy 1st

O'Mahony, Donal E.

462

RETURN TO THE RIVER -2000 Chapter 10 Marine Environment  

E-Print Network [OSTI]

RETURN TO THE RIVER - 2000 Chapter 10 Marine Environment 367367 Return to Table of Contents Go to Next Chapter CHAPTER 10. THE MARINE ENVIRONMENT "Some might be tempted to attribute all changes that environment allows, management interventions are more important when the ocean environment reduces natural

463

An Ontology for Semantic Representation of an Urban Virtual Environment  

E-Print Network [OSTI]

An Ontology for Semantic Representation of an Urban Virtual Environment K. Harkouken Saiah1, N of semantic representation of a dynamic virtual environment. Our model is embodied into a simulation with the semantic state of their environment. The idea is to represent the services offered by the environment

Paris-Sud XI, Universit de

464

Finding Environment Guarantees Marsha Chechik, Mihaela Gheorghiu, Arie Gurfinkel  

E-Print Network [OSTI]

Finding Environment Guarantees Marsha Chechik, Mihaela Gheorghiu, Arie Gurfinkel University a software component, a model of the environ- ment in which that component is supposed to run is constructed of the environment model. In this paper, we identify and formalize a problem related to environment models

Chechik, Marsha

465

Comparing the Parix and PVM parallel programming environments  

E-Print Network [OSTI]

1 Comparing the Parix and PVM parallel programming environments A.G. Hoekstra, P.M.A. Sloot, and L Genericity of parallel programming environments, enabling development of portable parallel programs environments are important issues if a choice between programming environments has to be made. We propose

Amsterdam, Universiteit van

466

SAFE WORKING ENVIRONMENT THE DEPARTMENT OF MOLECULAR BIOLOGY AND GENETICS  

E-Print Network [OSTI]

SAFE WORKING ENVIRONMENT THE DEPARTMENT OF MOLECULAR BIOLOGY AND GENETICS MAY 2013MAY 2013 #12;#12;SAFE WORKING ENVIRONMENT 1 The Working Environment Organisation at the Department The Working Environment organisation at the Department of Molecular Biology and Genetics (MBG) is divided into 11 working

467

Towards a Virtual Environment for Interactive World Building  

E-Print Network [OSTI]

Towards a Virtual Environment for Interactive World Building Dieter Schmalstieg and Michael|gervautz@cg.tuwien.ac.at http://www.cg.tuwien.ac.at/ Abstract We propose an architecture for virtual environments that is aimed and maintenance of the virtual environment. Users can be present in the environment using software clients

468

Benthic Terrain Modeler: Interpreting the Bathymetric Environment Shaun Walbridge1  

E-Print Network [OSTI]

interactively with an environment such as IPython 6 . Finally, the project now includes an extensive testing

Wright, Dawn Jeannine

469

PHOTOVOLTAICS AND THE ENVIRONMENT 1998. REPORT ON THE WORKSHOP PHOTOVOLTAICS AND THE ENVIRONMENT 1999  

SciTech Connect (OSTI)

The objective of the workshop ``Photovoltaics and the Environment'' was to bring together PV manufacturers and industry analysts to define EH and S issues related to the large-scale commercialization of PV technologies.

FTHENAKIS,V.; ZWEIBEL,K.; MOSKOWITZ,P.

1999-02-01T23:59:59.000Z

470

The Gulf War and the environment  

SciTech Connect (OSTI)

The Gulf War inflicted dramatic environmental damage upon the fragile desert and shore environments of Kuwait and northeastern Saudi Arabia. Coastal and marine environments experienced oil spills of more than 8 million barrels, which killed wildlife and damaged the fishing industry. In inland Kuwait, hundreds of oil lakes are scattered across the desert surface: these lakes emit noxious gases, drown insects and birds, and may seep to pollute groundwater. Exploding and burning oil wells released soot particles, oil droplets, and noxious chemicals into the atmosphere, spreading air pollution, acid rain, and respiratory problems. Military diggings, constructions, and vehicles have destroyed much of the desert pavement, resulting in increased dust storms and large, moving dunes.

El-Baz, F. (ed.) (Boston Univ., MA (United States). Center for Remote Sensing); Makharita, R.M. (ed.) (World Bank, Washington, DC (United States))

1994-01-01T23:59:59.000Z

471

Environment Assisted Quantum Transport in Organic Molecules  

E-Print Network [OSTI]

One of the new discoveries in quantum biology is the role of Environment Assisted Quantum Transport (ENAQT) in excitonic transport processes. In disordered quantum systems transport is most efficient when the environment just destroys quantum interferences responsible for localization, but the coupling does not drive the system to fully classical thermal diffusion yet. This poised realm between the pure quantum and the semi-classical domains has not been considered in other biological transport processes, such as charge transport through organic molecules. Binding in receptor-ligand complexes is assumed to be static as electrons are assumed to be not able to cross the ligand molecule. We show that ENAQT makes cross ligand transport possible and efficient between certain atoms opening the way for the reorganization of the charge distribution on the receptor when the ligand molecule docks. This new effect can potentially change our understanding how receptors work. We demonstrate room temperature ENAQT on the c...

Vattay, Gabor

2015-01-01T23:59:59.000Z

472

Ceramic coating system or water oxidation environments  

DOE Patents [OSTI]

A process for water oxidation of combustible materials in which during at least a part of the oxidation corrosive material is present and makes contact with at least a portion of the apparatus over a contact area on the apparatus. At least a portion of the contact surface area comprises titanium dioxide coated onto a titanium metal substrate. Such ceramic composites have been found to be highly resistant to environments encountered in the process of supercritical water oxidation. Such environments typically contain greater than 50 mole percent water, together with oxygen, carbon dioxide, and a wide range of acids, bases, and salts. Pressures are typically about 27.5 to about 1000 bar while temperatures range as high as 700.degree. C. The ceramic composites are also resistant to degradation mechanisms caused by thermal stresses.

Hong, Glenn T. (Tewksbury, MA)

1996-01-01T23:59:59.000Z

473

The dynamic radiation environment assimilation model (DREAM)  

SciTech Connect (OSTI)

The Dynamic Radiation Environment Assimilation Model (DREAM) is a 3-year effort sponsored by the US Department of Energy to provide global, retrospective, or real-time specification of the natural and potential nuclear radiation environments. The DREAM model uses Kalman filtering techniques that combine the strengths of new physical models of the radiation belts with electron observations from long-term satellite systems such as GPS and geosynchronous systems. DREAM includes a physics model for the production and long-term evolution of artificial radiation belts from high altitude nuclear explosions. DREAM has been validated against satellites in arbitrary orbits and consistently produces more accurate results than existing models. Tools for user-specific applications and graphical displays are in beta testing and a real-time version of DREAM has been in continuous operation since November 2009.

Reeves, Geoffrey D [Los Alamos National Laboratory; Koller, Josef [Los Alamos National Laboratory; Tokar, Robert L [Los Alamos National Laboratory; Chen, Yue [Los Alamos National Laboratory; Henderson, Michael G [Los Alamos National Laboratory; Friedel, Reiner H [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

474

Assessing the assessments: Pharmaceuticals in the environment  

SciTech Connect (OSTI)

The relatively new issue of pharmaceutical contamination of the environment offers the opportunity to explore the application of values to the construction, communication and management of risk. The still-developing regulatory policies regarding environmental contamination with pharmaceuticals provide fertile ground for the introduction of values into the definition and management of risk. In this report, we summarize the current knowledge regarding pharmaceutical contamination of the environment and discuss specific attributes of pharmaceuticals that require special consideration. We then present an analysis showing that if values are incorporated into assessing, characterizing and managing risk, the results of risk assessments will more accurately reflect the needs of various stakeholders. Originating from an acknowledgement of the inherent uncertainty and value-laden nature of risk assessment, the precautionary principle (and later, the multi-criteria, integrated risk assessment), provides a direction for further research and policy development.

Enick, O.V. [Department of Biological Sciences, Simon Fraser University, Burnaby, BC, V5A 1S6 (Canada)], E-mail: oana.enick@gov.bc.ca; Moore, M.M. [Department of Biological Sciences, Simon Fraser University, Burnaby, BC, V5A 1S6 (Canada)], E-mail: mmoore@sfu.ca

2007-11-15T23:59:59.000Z

475

Iridium material for hydrothermal oxidation environments  

DOE Patents [OSTI]

A process for hydrothermal oxidation of combustible materials in which, during at least a part of the oxidation, corrosive material is present and makes contact with at least a portion of the apparatus over a contact area on the apparatus. At least a portion of the contact surface area comprises iridium, iridium oxide, an iridium alloy, or a base metal overlaid with an iridium coating. Iridium has been found to be highly resistant to environments encountered in the process of hydrothermal oxidation. Such environments typically contain greater than 50 mole percent water, together with oxygen, carbon dioxide, and a wide range of acids, bases and salts. Pressures are typically about 27.5 to about 1000 bar while temperatures range as high as 800.degree. C.

Hong, Glenn T. (Tewksbury, MA); Zilberstein, Vladimir A. (Brookline, MA)

1996-01-01T23:59:59.000Z

476

Manufacturing Environment in the Year 2000  

E-Print Network [OSTI]

the process plan, create the NC machine instructions, define inspection criteria, simulate the complete pro cess, etc .... and, therefore, become line manage ment. The line manager will monitor the manu facturing environment for unexpected problems... and become functionally staff. People ... Increased emphasis will be placed on finding, educating and motivating good people at all levels. The importance of people in applying, maintaining, and using technology will be apparent. High education costs...

Slautterback, W. H.

477

Cesium in the Savannah River Site environment  

SciTech Connect (OSTI)

Cesium in the Savannah River Site Environment is published as a part of the Radiological Assessment Program (RAP). It is the fourth in a series of eight documents on individual radioisotopes released to the environment as a result of Savannah River Site (SRS) operations. The earlier documents describe the environmental consequences of tritium, iodine, and uranium. Documents on plutonium, strontium, carbon, and technetium will be published in the future. These are dynamic documents and current plans call for revising and updating each one on a two-year schedule.Radiocesium exists in the environment as a result of above-ground nuclear weapons tests, the Chernobyl accident, the destruction of satellite Cosmos 954, small releases from reactors and reprocessing plants, and the operation of industrial, medical, and educational facilities. Radiocesium has been produced at SRS during the operation of five production reactors. Several hundred curies of {sup 137}Cs was released into streams in the late 50s and 60s from leaking fuel elements. Smaller quantities were released from the fuel reprocessing operations. About 1400 Ci of {sup 137}Cs was released to seepage basins where it was tightly bound by clay in the soil. A much smaller quantity, about four Ci. was released to the atmosphere. Radiocesium concentration and mechanisms for atmospheric, surface water, and groundwater have been extensively studied by Savannah River Technology Center (SRTC) and ecological mechanisms have been studied by Savannah River Ecology Laboratory (SREL). The overall radiological impact of SRS releases on the offsite maximum individual can be characterized by total doses of 033 mrem (atmospheric) and 60 mrem (liquid), compared with a dose of 12,960 mrem from non-SRS sources during the same period of time. Isotope {sup 137}Cs releases have resulted in a negligible risk to the environment and the population it supports.

Carlton, W.H.; Bauer, L.R.; Evans, A.G.; Geary, L.A.; Murphy, C.E. Jr.; Pinder, J.E.; Strom, R.N.

1992-03-01T23:59:59.000Z

478

Authentication : can mobile environments be secured?  

E-Print Network [OSTI]

The Data Encryption Standard (DES) created the public realm of encryption in the mid-1970's when it was fully specified and released into the public domain. The Data Encryption Standard was adopted as a federal standard on November 23, 1976 and authorized... and service provider. TABLE OF CONTENTS CHAPTER Page I INTRODUCTION. A, Statement of the Problem. B. Definitions of Terms, II REVIEW OF THE LITERATURE A. Issues Rehtted to Mobile Environments: An Overview . . . . . B. Sectility Goals and Threats C...

Cropper, Charles Austin

2013-02-22T23:59:59.000Z

479

RAPID/Geothermal/Environment | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, search RAPID Regulatory and Permitting InformationGeothermal/Environment <

480

Calibration facility for environment dosimetry instruments  

SciTech Connect (OSTI)

In the last ten years, the nuclear activities, as well as the major nuclear events (see Fukushima accident) had an increasing impact on the environment, merely by contamination with radioactive materials. The most conferment way to quickly identify the presence of some radioactive elements in the environment, is to measure the dose-equivalent rate H. In this situation, information concerning the values of H due only to the natural radiation background must exist. Usually, the values of H due to the natural radiation background, are very low (?10{sup ?9} - 10{sup ?8} Sv/h). A correct measurement of H in this range involve a performing calibration of the measuring instruments in the measuring range corresponding to the natural radiation background lead to important problems due to the presence of the natural background itself the best way to overlap this difficulty is to set up the calibration stand in an area with very low natural radiation background. In Romania, we identified an area with such special conditions at 200 m dept, in a salt mine. This paper deals with the necessary requirements for such a calibration facility, as well as with the calibration stand itself. The paper includes also, a description of the calibration stand (and images) as well as the radiological and metrological parameters. This calibration facilities for environment dosimetry is one of the few laboratories in this field in Europe.

Bercea, Sorin; Celarel, Aurelia; Cenusa, Constantin [Horia Hulubei National Institute for Physics and Nuclear Engineering, 30 Reactorului St, Magurele, Jud Ilfov, P.O.B. MG-6, RO-077125 (Romania)

2013-12-16T23:59:59.000Z

Note: This page contains sample records for the topic "nova scotia environment" 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

Apparatus for observing a hostile environment  

DOE Patents [OSTI]

An apparatus is provided for observing a hostile environment, comprising a housing and a camera capable of insertion within the housing. The housing is a double wall assembly with an inner and outer wall with an hermetically sealed chamber therebetween. A housing for an optical system used to observe a hostile environment is provided, comprising a transparent, double wall assembly. The double wall assembly has an inner wall and an outer wall with an hermetically sealed chamber therebetween. The double wall assembly has an opening and a void area in communication with the opening. The void area of the housing is adapted to accommodate the optical system within said void area. An apparatus for protecting an optical system used to observe a hostile environment is provided comprising a housing; a tube positioned within the housing; and a base for supporting the housing and the tube. The housing comprises a double wall assembly having an inner wall and an outerwall with an hermetically sealed chamber therebetween. The tube is adapted to house the optical system therein.

Nance, Thomas A. (Aiken, SC); Boylston, Micah L. (Williston, SC); Robinson, Casandra W. (Trenton, SC); Sexton, William C. (Aiken, SC); Heckendorn, Frank M. (Aiken, SC)

2000-01-01T23:59:59.000Z

482

The Environment of Galaxies at Low Redshift  

E-Print Network [OSTI]

We compare environmental effects in two analogous samples of galaxies, one from the Sloan Digital Sky Survey (SDSS) and the other from a semi-analytic model (SAM) based on the Millennium Simulation (MS), to test to what extent current SAMs of galaxy formation are reproducing environmental effects. We estimate the large-scale environment of each galaxy using a Bayesian density estimator based on distances to all ten nearest neighbors and compare broad-band photometric properties of the two samples as a function of environment. The feedbacks implemented in the semi-analytic model produce a qualitatively correct galaxy population with similar environmental dependence as that seen in SDSS galaxies. In detail, however, the colors of MS galaxies exhibit an exaggerated dependence on environment: the field contains too many blue galaxies while clusters contain too many red galaxies, compared to the SDSS sample. We also find that the MS contains a population of highly clustered, relatively faint red galaxies with velocity dispersions comparable to their Hubble flow. Such high-density galaxies, if they exist, would be overlooked in any low-redshift survey since their membership to a cluster cannot be determined due to the "Fingers of God" effect.

Nicolas B. Cowan; Zeljko Ivezic

2008-01-15T23:59:59.000Z

483

Engineered Barrier System: Physical and Chemical Environment  

SciTech Connect (OSTI)

The conceptual and predictive models documented in this Engineered Barrier System: Physical and Chemical Environment Model report describe the evolution of the physical and chemical conditions within the waste emplacement drifts of the repository. The modeling approaches and model output data will be used in the total system performance assessment (TSPA-LA) to assess the performance of the engineered barrier system and the waste form. These models evaluate the range of potential water compositions within the emplacement drifts, resulting from the interaction of introduced materials and minerals in dust with water seeping into the drifts and with aqueous solutions forming by deliquescence of dust (as influenced by atmospheric conditions), and from thermal-hydrological-chemical (THC) processes in the drift. These models also consider the uncertainty and variability in water chemistry inside the drift and the compositions of introduced materials within the drift. This report develops and documents a set of process- and abstraction-level models that constitute the engineered barrier system: physical and chemical environment model. Where possible, these models use information directly from other process model reports as input, which promotes integration among process models used for total system performance assessment. Specific tasks and activities of modeling the physical and chemical environment are included in the technical work plan ''Technical Work Plan for: In-Drift Geochemistry Modeling'' (BSC 2004 [DIRS 166519]). As described in the technical work plan, the development of this report is coordinated with the development of other engineered barrier system analysis model reports.

P. Dixon

2004-04-26T23:59:59.000Z

484

Corrosion of barrier materials in seawater environments  

SciTech Connect (OSTI)

A brief review has been carried out on the performance of barrier materials for low-level radioactive wastes in seawater environments. The environments include those for shallower coastal waters as well as the deep ocean (down to 3800 m). The review is mainly focused on metallic materials since they are the most common for seawater service and they have the largest data base. Information from the literature is usually pertinent to shallower coastal locations, but there is a valuable source of corrosion data obtained from several studies of metallic specimens exposed to ocean-bed conditions. In addition, the corrosion of carbon steel barriers has been evaluated for actual waste containers that were retrieved from previously-used disposal sites in the Atlantic and Pacific Oceans. Of the metallic materials studied, carbon steel showed the least corrosion resistance. Failure by non-uniform attack in a typical waste container could occur in as little as 25 y in some ocean environments ` Penetration by local attack, such as pitting and crevice corrosion resistance was also observed for more expensive materials such as low-alloy steels, stainless steels, titanium alloys, zirconium alloys, copper alloys, nickel alloys, aluminum alloys, and lead alloys.

Heiser, J.H.; Soo, P.

1995-07-01T23:59:59.000Z

485

Performance Assessment of Prediction In Dynamic Environments (PRIDE) in Manufacturing Environments  

SciTech Connect (OSTI)

This paper describes PRIDE (Prediction in Dynamic Environments), a multi-resolution and hierarchical framework. PRIDE was developed as a test bed to assess the performance of autonomous vehicles in the presence of moving objects in a simulated environment. By simulating scenarios in which moving objects are prevalent, a designer of an autonomous vehicle can test the performance of their path planning and collision avoidance algorithms without having to immerse the vehicle in the physical world. This framework supports the prediction of the future location of moving objects at various levels of resolution, thus providing prediction information at the frequency and level of abstraction necessary for planners at different levels within the hierarchy. Previous works have demonstrated the reliability of PRIDE to simulate on-road traffic situations with multiple vehicles. To provide realistic scenarios, PRIDE integrates a level of situation awareness of how other vehicles in the environment are expected to behave considering the situation in which the vehicles find themselves in. In recent efforts, the PRIDE framework has been extended to consider production logistics in dynamic manufacturing environment while focusing on the scheduling of material transportation system. To demonstrate the characteristics of the PRIDE framework, this paper illustrates real-time navigation of Automated Guided Vehicles (AGVs) at different locations in a dynamic manufacturing environment. Moreover, using the high-fidelity physics?based framework for the Unified System for Automation and Robot Simulation (USARSim), this paper analyzes the performance of the PRIDE framework on a set of realistic scenarios.

Kootbally, Zeid [National Institute of Standards and Technology (NIST)] [National Institute of Standards and Technology (NIST); Schlenoff, Craig [National Institute of Standards and Technology (NIST)] [National Institute of Standards and Technology (NIST); Madhavan, Raj [ORNL] [ORNL

2009-01-01T23:59:59.000Z

486

Gregory H. Friedman: Before the Subcommttee on Energy and Environment...  

Energy Savers [EERE]

the Subcommttee on Energy and Environment of the Committee on Science U.S. House of Representatives Gregory H. Friedman: Before the Subcommttee on Energy and Environment of the...

487

Virtual Private Environments for Multiphysics Code Validation on Computing Grids  

E-Print Network [OSTI]

Virtual Private Environments for Multiphysics Code Validation on Computing Grids Toan Nguyen-based computing environments and deploys, tests and analyzes multiphysics codes. A second approach executes model coupling, error correlations, alert definitions, best usage practices, code verification and code

Paris-Sud XI, Université de

488

augmented learning environment: Topics by E-print Network  

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

19 20 21 22 23 24 25 Next Page Last Page Topic Index 81 Medium-based design: Extending a medium to create and exploratory learning environment. Interactive Learning Environments...

489

p ro g r a m m E Built Environment  

E-Print Network [OSTI]

: www.slu.se/environ/built Monitoring urban development Researchers at SLU are examining the problem for children on different scales from micro levels such as schoolyards, to larger-scale environments

490

The Economics of Trade, Biofuel, and the Environment  

E-Print Network [OSTI]

prices. The reason: demand for biofuel increases, and ?rst-The Economics of Trade, Biofuel, and the Environment GalThe Economics of Trade, Biofuel, and the Environment ? Gal

Hochman, Gal; Sexton, Steven; Zilberman, David D.

2010-01-01T23:59:59.000Z

491

Environment Characterization for Non-Recontaminating Frontier-Based  

E-Print Network [OSTI]

Environment Characterization for Non-Recontaminating Frontier-Based Robotic Exploration Mikhail robotics, frontier-based exploration, distributed pursuit- evasion, environment characterization into previously decontaminated water whenever part of the frontier is not guarded by a robot. Another example

Lynch, Nancy

492

Position Paper: The Iteration Mechanism in the Inscape Environment  

E-Print Network [OSTI]

(the predicates), Inscape, through the Infuse source change management and coordination subsystem-knowledgeable environment. Thus, the Inscape environment provides the Infuse subsystem to make it easy to change

Perry, Dewayne E.

493

Satellite Ecology: The Dearth of Environment Dependence  

E-Print Network [OSTI]

Using the Sloan Digital Sky Survey (SDSS) galaxy group catalogue of Yang et al. (2007), we study the average colour and average concentration of satellite galaxies as function of (i) their stellar mass, (ii) their group mass, and (iii) their group-centric radius. We find that the colours and concentrations of satellite galaxies are (almost) completely determined by their stellar mass. In particular, at fixed stellar mass, the average colours and concentrations of satellite galaxies are independent of either halo mass or halo-centric radius. We find clear evidence for mass segregation of satellite galaxies in haloes of all masses, and argue that this explains why satellites at smaller halo-centric radii are somewhat redder and somewhat more concentrated. In addition, the weak colour and concentration dependence of satellite galaxies on halo mass is simply a reflection of the fact that more massive haloes host, on average, more massive satellites. Combining these results with the fact that satellite galaxies are, on average, redder and somewhat more concentrated than central galaxies of the same stellar mass, the following picture emerges: galaxies become redder and somewhat more concentrated once they fall into a bigger halo (i.e., once they become a satellite galaxy). This is a clear manifestation of environment dependence. However, there is no indication that the magnitude of the transformation (or its timescale) depends on environment; a galaxy undergoes a transition when it becomes a satellite, but it does not matter whether it becomes a satellite of a small (Milky Way sized) halo, or of a massive cluster. We discuss the implication of this `dearth' of environment dependence for the physical processes responsible for transforming satellite galaxies.

Frank C. van den Bosch; Anna Pasquali; Xiaohu Yang; H. J. Mo; Simone Weinmann; Daniel H. McIntosh; Daniel Aquino

2008-05-01T23:59:59.000Z

494

Virtual environments for nuclear power plant design  

SciTech Connect (OSTI)

In the design and operation of nuclear power plants, the visualization process inherent in virtual environments (VE) allows for abstract design concepts to be made concrete and simulated without using a physical mock-up. This helps reduce the time and effort required to design and understand the system, thus providing the design team with a less complicated arrangement. Also, the outcome of human interactions with the components and system can be minimized through various testing of scenarios in real-time without the threat of injury to the user or damage to the equipment. If implemented, this will lead to a minimal total design and construction effort for nuclear power plants (NPP).

Brown-VanHoozer, S.A.; Singleterry, R.C. Jr.; King, R.W. [and others

1996-03-01T23:59:59.000Z

495

Axion physics in a Josephson junction environment  

E-Print Network [OSTI]

We show that recent experiments based on Josephson junctions, SQUIDS, and coupled Josephson qubits have a cosmological interpretation in terms of axionic dark matter physics, in the sense that they allow for analogue simulation of early-universe axion physics. We propose new experimental setups in which SQUID-like axionic interactions in a resonant Josephson junction environment can be tested, similar in nature to recent experiments that test for quantum entanglement of two coupled Josephson qubits. We point out that the parameter values relevant for early-universe axion cosmology are accessible with present day's achievements in nanotechnology.

Christian Beck

2011-11-23T23:59:59.000Z

496

Micro/nanofabricated environments for synthetic biology  

SciTech Connect (OSTI)

A better understanding of how confinement, crowding and reduced dimensionality modulate reactivity and reaction dynamics will aid in the rational and systematic discovery of functionality in complex biological systems. Artificial micro- and nanofabricated structures have helped elucidate the effects of nanoscale spatial confinement and segregation on biological behavior, particularly when integrated with microfluidics, through precise control in both space and time of diffusible signals and binding interactions. Examples of nanostructured interfaces for synthetic biology include the development of cell-like compartments for encapsulating biochemical reactions, nanostructured environments for fundamental studies of diffusion, molecular transport and biochemical reaction kinetics, and regulation of biomolecular interactions as functions of micro- and nanofabricated topological constraints.

Collier, Pat [ORNL; Simpson, Michael L [ORNL

2011-01-01T23:59:59.000Z

497

Environment, Safety and Health (ESH) Goals  

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

The purpose of this Policy is to establish Environment, Safety and Health (ES&H) goals for Department of Energy (DOE) personnel and its contractors. These goals are designed to establish Departmental ES&H expectations for: 1) DOE and contractor personnel ES&H behaviors and attitudes in the conduct of their daily work activities, and 2) operational performance regarding worker injuries and illnesses, regulatory enforcement actions, and environmental releases. Cancels DOE P 450.1, DOE P 450.6. Canceled by DOE O 450.4A

2004-08-02T23:59:59.000Z

498

Environment/Health/Safety (EHS): Databases  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, Safety andSafetyBerkeley

499

Environment/Health/Safety (EHS): Laser Safety  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, SafetyEHS Radiation

500

Environment/Health/Safety (EHS): Site Map  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing Zirconia NanoparticlesSmartAffects theEnvironment, SafetyEHSSafetyConcerns