Sample records for unavailable space brine

  1. Westinghouse Reactor Protection System Unavailability, 1984--1995

    SciTech Connect (OSTI)

    Eide, Steven Arvid; Calley, Michael Brennan; Gentillon, Cynthia Ann; Wierman, Thomas Edward; Rasmuson, D.; Marksberry, D.

    1999-08-01T23:59:59.000Z

    An analysis was performed of the safety-related performance of the reactor protection system (RPS) at U. S. Westinghouse commercial reactors during the period 1984 through 1995. RPS operational data were collected from the Nuclear Plant Reliability Data System and Licensee Event Reports. A risk-based analysis was performed on the data to estimate the observed unavailability of the RPS, based on a fault tree model of the system. Results were compared with existing unavailability estimates from Individual Plant Examinations and other reports.

  2. Westinghouse Reactor Protection System Unavailability, 1984-1995

    SciTech Connect (OSTI)

    C. D. Gentillon; D. Marksberry (USNRC); D. Rasmuson; M. B. Calley; S. A. Eide; T. Wierman (INEEL)

    1999-08-01T23:59:59.000Z

    An analysis was performed of the safety-related performance of the reactor protection system (RPS) at U.S. Westinghouse commercial reactors during the period 1984 through 1995. RPS operational data were collected from the Nuclear Plant Reliability Data System and Licensee Event Reports. A risk-based analysis was performed on the data to estimate the observed unavailability of the RPS, based on a fault tree model of the system. Results were compared with existing unavailability estimates from Individual Plant Examinations and other reports.

  3. Cathodic protection in oilfield brine

    SciTech Connect (OSTI)

    Turnipseed, S.P. (Chevron U.S.A. Inc., Houston, TX (US))

    1991-12-01T23:59:59.000Z

    In this paper the use of cathodic protection (CP) to mitigate internal and corrosion-related failures that occur in the produced brine phase of oilfield tanks and production vessels is discussed. Unique considerations covered include brine properties, CP system selection, installation details, monitoring, and coatings.

  4. CHEMISTRY OF SILICA IN CERRO PRIETO BRINES

    E-Print Network [OSTI]

    Weres, O.

    2012-01-01T23:59:59.000Z

    chemistry of silica in Cerro Prieto brine may profitably be14 mg·l-1 AND SYNTHFTIC CERRO PRIETO BRINES High Ca We112Q.by the CFE Laboratory at Cerro Prieto and kindly provided to

  5. Brining studies at Pepper Products Inc.

    E-Print Network [OSTI]

    Okoro, John Daniel

    1988-01-01T23:59:59.000Z

    of Department) A. B. Childers (Member) V. E. Sweat (Member) December 1988 Abstract Optimum brining conditions, causes of secondary fermentation, and salt fluctuation were investigated. Jalapeno peppers held in brine solution undergo lactic acid... fermentation, controlled by level of acidification and concentration of salt. Only brining at 7. 5% NaCl, with no added acetic acid, resulted in loss of all fermentable sugars. However, salt concentration fluctuated widely in this sample. Brining in 25...

  6. Improved Water Flooding through Injection Brine Modification

    SciTech Connect (OSTI)

    Robertson, Eric Partridge; Thomas, Charles Phillip; Morrow, Norman; (U of Wyoming)

    2003-01-01T23:59:59.000Z

    Crude oil/brine/rock interactions can lead to large variations in the displacement efficiency of waterflooding, by far the most widely applied method of improved oil recovery. Laboratory waterflood tests show that injection of dilute brine can increase oil recovery. Numerous fields in the Powder River basin have been waterflooded using low salinity brine (about 500 ppm) from the Madison limestone or Fox Hills sandstone. Although many uncertainties arise in the interpretation and comparison of field production data, injection of low salinity brine appears to give higher recovery compared to brine of moderate salinity (about 7,000 ppm). Laboratory studies of the effect of brine composition on oil recovery cover a wide range of rock types and crude oils. Oil recovery increases using low salinity brine as the injection water ranged from a low of no notable increase to as much as 37.0% depending on the system being studied. Recovery increases using low salinity brine after establishing residual oil saturation (tertiary mode) ranged from no significant increase to 6.0%. Tests with two sets of reservoir cores and crude oil indicated slight improvement in recovery for low salinity brine. Crude oil type and rock type (particularly the presence and distribution of kaolinite) both play a dominant role in the effect that brine composition has on waterflood oil recovery.

  7. Development Operations Hypersaline Geothermal Brine Utilization...

    Open Energy Info (EERE)

    Hypersaline Geothermal Brine Utilization Imperial County, California Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Development Operations Hypersaline...

  8. Chemistry of Silica in Cerro Prieto Brines

    E-Print Network [OSTI]

    Weres, Oleh

    2012-01-01T23:59:59.000Z

    LBL-10166 CERRO-PRIETO-12 XICAN-AMERICANCOOPERATIVE' PROGRAM T THE CERRO PRIETO GEOTHERMAL FIELD ICHEMISTRY OF SILICA IN CERRO PRIETO BRINES Oleh Weres Leon

  9. Chemistry of Silica in Cerro Prieto Brines

    E-Print Network [OSTI]

    Weres, O.

    2010-01-01T23:59:59.000Z

    LBL-10166 CERRO-PRIETO-12 XICAN-AMERICANCOOPERATIVE' PROGRAM T THE CERRO PRIETO GEOTHERMAL FIELD ICHEMISTRY OF SILICA IN CERRO PRIETO BRINES Oleh Weres Leon

  10. THE MECHANISM OF INTRAGRANULAR MIGRATION OF BRINE INCLUSIONS IN SALT

    E-Print Network [OSTI]

    Machiels, A.J.

    2010-01-01T23:59:59.000Z

    of Brine Inclusions in a Salt Repository", ORM. -5526 (JulyOF BRINE INCLUSIONS IN SALT A.J. Machiels, S. Yagnik, D.R.OF BRINE INCLUSIONS IN SALT by A.J. Machiels S. Yagnik D.R.

  11. Biomass production from inland brines

    SciTech Connect (OSTI)

    Reach, C.D. Jr.

    1985-01-01T23:59:59.000Z

    The feasibility of utilizing inland saline waters to produce biomass through the application of marine aquaculture was investigated. From available data, the diatom Phaeodactylum tricornutum and the crustacea Artemia salina were selected as the experimental marine organisms. The proposed diatom served to establish primary productivity and concurrently provide a food source for the herbivorus crustacea. The objective of the first phase research was to investigate the ability of P. tricornutum and A. salina to survive in the inland saline environment. Clarified activated sludge and anaerobic digester effluents were evaluated as nutrient sources for the diatom cultures. Experimental results indicated that diatom and crustacea growth in the inland brine was equivalent to control cultures utilizing seawater. Wastewater effluents were successful as nutrient sources for the diatom cultures. Bioassay experiments conducted with petroleum related brines yielded mixed results respect to the survival and growth of the P. tricornutum and A. salina organisms. A second series of experiments involved cholornaphthalene, chlorophenanthene, and chlorophenanthrene, and chloroanthracene as the experimental hydrocarbons. Results of the diatom studies show chloroanthracene to induce toxic effects at a concentration of 500 ug/L. Artemia studies showed no acutely toxic effects relative to the test hydrocarbons at 50 and 100 ug/L.

  12. Recovery of energy from geothermal brine and other hot water sources

    DOE Patents [OSTI]

    Wahl, III, Edward F. (Claremont, CA); Boucher, Frederic B. (San Juan Capistrano, CA)

    1981-01-01T23:59:59.000Z

    Process and system for recovery of energy from geothermal brines and other hot water sources, by direct contact heat exchange between the brine or hot water, and an immiscible working fluid, e.g. a hydrocarbon such as isobutane, in a heat exchange column, the brine or hot water therein flowing countercurrent to the flow of the working fluid. The column can be operated at subcritical, critical or above the critical pressure of the working fluid. Preferably, the column is provided with a plurality of sieve plates, and the heat exchange process and column, e.g. with respect to the design of such plates, number of plates employed, spacing between plates, area thereof, column diameter, and the like, are designed to achieve maximum throughput of brine or hot water and reduction in temperature differential at the respective stages or plates between the brine or hot water and the working fluid, and so minimize lost work and maximize efficiency, and minimize scale deposition from hot water containing fluid including salts, such as brine. Maximum throughput approximates minimum cost of electricity which can be produced by conversion of the recovered thermal energy to electrical energy.

  13. Brine flow in heated geologic salt.

    SciTech Connect (OSTI)

    Kuhlman, Kristopher L.; Malama, Bwalya

    2013-03-01T23:59:59.000Z

    This report is a summary of the physical processes, primary governing equations, solution approaches, and historic testing related to brine migration in geologic salt. Although most information presented in this report is not new, we synthesize a large amount of material scattered across dozens of laboratory reports, journal papers, conference proceedings, and textbooks. We present a mathematical description of the governing brine flow mechanisms in geologic salt. We outline the general coupled thermal, multi-phase hydrologic, and mechanical processes. We derive these processes' governing equations, which can be used to predict brine flow. These equations are valid under a wide variety of conditions applicable to radioactive waste disposal in rooms and boreholes excavated into geologic salt.

  14. THERMAL GRADIENT MIGRATION OF BRINE INCLUSIONS IN SALT

    E-Print Network [OSTI]

    Yagnik, S.K.

    2010-01-01T23:59:59.000Z

    OF BRINE INCLUSIONS IN SALT Suresh K. Yagnik February 1982 TOF BRINE INCLUSIONS IN SALT by Suresh K. Yagnik Materialsb u i l t in future. The salt deposits, however, are known

  15. Portable brine evaporator unit, process, and system

    DOE Patents [OSTI]

    Hart, Paul John (Indiana, PA); Miller, Bruce G. (State College, PA); Wincek, Ronald T. (State College, PA); Decker, Glenn E. (Bellefonte, PA); Johnson, David K. (Port Matilda, PA)

    2009-04-07T23:59:59.000Z

    The present invention discloses a comprehensive, efficient, and cost effective portable evaporator unit, method, and system for the treatment of brine. The evaporator unit, method, and system require a pretreatment process that removes heavy metals, crude oil, and other contaminates in preparation for the evaporator unit. The pretreatment and the evaporator unit, method, and system process metals and brine at the site where they are generated (the well site). Thus, saving significant money to producers who can avoid present and future increases in transportation costs.

  16. Batteries from Brine | 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 DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments fromofBatteries from Brine Batteries from Brine March 31, 2014

  17. Biochemical processes for geothermal brine treatment

    SciTech Connect (OSTI)

    Premuzic, E.T.; Lin, M.S.; Bohenek, M.; Joshi-Tope, G.; Zhou, W.; Shelenkova, L.; Wilke, R.

    1998-08-01T23:59:59.000Z

    As part of the DOE Geothermal Energy Program, BNL`s Advanced Biochemical Processes for Geothermal Brines (ABPGB) project is aimed at the development of cost-efficient and environmentally acceptable technologies for the disposal of geothermal wastes. Extensive chemical studies of high and low salinity brines and precipitates have indicated that in addition to trace quantities of regulated substances, e.g., toxic metals such as arsenic and mercury, there are significant concentrations of valuable metals, including gold, silver and platinum. Further chemical and physical studies of the silica product have also shown that the produced silica is a valuable material with commercial potential. A combined biochemical and chemical technology is being developed which (1) solubilizes, separates, and removes environmentally regulated constituents in geothermal precipitates and brines, (2) generates an amorphous silica product which may be used as feedstock for the production of revenue generating materials, (3) recover economically valuable trace metals and salts. Geothermal power resources which utilize low salinity brines and use the Stretford process for hydrogen sulfide abatement generate a contaminated sulfur cake. Combined technology converts such sulfur to a commercial grade sulfur, suitable for agricultural use. The R and D activities at BNL are conducted jointly with industrial parties in an effort focused on field applications.

  18. BIOCHEMICAL PROCESSES FOR GEOTHERMAL BRINE TREATMENT

    SciTech Connect (OSTI)

    PREMUZIC,E.T.; LIN,M.S.; BOHENEK,M.; JOSHI-TOPE,G.; ZHOU,W.; SHELENKOVA,L.; WILKE,R.

    1998-09-20T23:59:59.000Z

    As part of the DOE Geothermal Energy Program, BNL's Advanced Biochemical Processes for Geothermal Brines (ABPGB) project is aimed at the development of cost-efficient and environmentally acceptable technologies for the disposal of geothermal wastes. Extensive chemical studies of high and low salinity brines and precipitates have indicated that in addition to trace quantities of regulated substances, e.g., toxic metals such as arsenic and mercury, there are significant concentrations of valuable metals, including gold, silver and platinum. Further chemical and physical studies of the silica product have also shown that the produced silica is a valuable material with commercial potential. A combined biochemical and chemical technology is being developed which (1) solubilizes, separates, and removes environmentally regulated constituents in geothermal precipitates and brines (2) generates an amorphous silica product which may be used as feedstock for the production of revenue generating materials, (3) recover economically valuable trace metals and salts. Geothermal power resources which utilize low salinity brines and use the Stretford process for hydrogen sulfide abatement generate a contaminated sulfur cake. Combined technology converts such sulfur to a commercial grade sulfur, suitable for agricultural use. The R and D activities at BNL are conducted jointly with industrial parties in an effort focused on field applications.

  19. Radionuclide transport in sandstones with WIPP brine

    SciTech Connect (OSTI)

    Weed, H.C.; Bazan, F.; Fontanilla, J.; Garrison, J.; Rego, J.; Winslow, A.M.

    1981-02-01T23:59:59.000Z

    Retardation factors (R) have been measured for the transport of /sup 3/H, /sup 95m/Tc, and /sup 85/Sr in WIPP brine using St. Peter, Berea, Kayenta, and San Felipe sandstone cores. If tritium is assumed to have R=1, /sup 95m/Tc has R=1.0 to 1.3 and therefore is essentially not retarded. Strontium-85 has R = 1.0 to 1.3 on St. Peter, Berea, and Kayenta, but R=3 on San Felipe. This is attributed to sorption on the matrix material of San Felipe, which has 45 volume % matrix compared with 1 to 10 volume % for the others. Retardation factors (R/sub s/) for /sup 85/Sr calculated from static sorption measurements are unity for all the sandstones. Therefore, the static and transport results for /sup 85/Sr disagree in the case of San Felipe, but agree for St. Peter, Berea, and Kayenta.

  20. Geochemistry of Aluminum in High Temperature Brines

    SciTech Connect (OSTI)

    Benezeth, P.; Palmer, D.A.; Wesolowski, D.J.

    1999-05-18T23:59:59.000Z

    The objective ofthis research is to provide quantitative data on the equilibrium and thermodynamic properties of aluminum minerals required to model changes in permeability and brine chemistry associated with fluid/rock interactions in the recharge, reservoir, and discharge zones of active geothermal systems. This requires a precise knowledge of the thermodynamics and speciation of aluminum in aqueous brines, spanning the temperature and fluid composition rangesencountered in active systems. The empirical and semi-empirical treatments of the solubility/hydrolysis experimental results on single aluminum mineral phases form the basis for the ultimate investigation of the behavior of complex aluminosilicate minerals. The principal objective in FY 1998 was to complete the solubility measurements on boehmite (AIOOH) inNaC1 media( 1 .O and 5.0 molal ionic strength, IOO-250°C). However, additional measurements were also made on boehmite solubility in pure NaOH solutions in order to bolster the database for fitting in-house isopiestic data on this system. Preliminary kinetic Measurements of the dissolution/precipitation of boehmite was also carried out, although these were also not planned in the earlier objective. The 1999 objectives are to incorporate these treatments into existing codes used by the geothermal industry to predict the chemistry ofthe reservoirs; these calculations will be tested for reliability against our laboratory results and field observations. Moreover, based on the success of the experimental methods developed in this program, we intend to use our unique high temperature pH easurement capabilities to make kinetic and equilibrium studies of pH-dependent aluminosilicate transformation reactions and other pH-dependent heterogeneous reactions.

  1. Origin and geochemical evolution of the Michigan basin brine

    SciTech Connect (OSTI)

    Wilson, T.P.

    1989-01-01T23:59:59.000Z

    Chemical and isotopic data were collected on 126 oil field brine samples and were used to investigate the origin and geochemical evolution of water in 8 geologic formations in the Michigan basin. Two groups of brine are found in the basin, the Na-Ca-Cl brine in the upper Devonian formations, and Ca-Na-Cl brine from the lower Devonian and Silurian aged formations. Water in the upper Devonian Berea, Traverse, and Dundee formations originated from seawater concentrated into halite facies. This brine evolved by halite precipitation, dolomitization, aluminosilicate reactions, and the removal of SO{sub 4} by bacterial action or by CaSO{sub 4} precipitation. The stable isotopic composition (D, O) is thought to represent dilution of evapo-concentrated seawater by meteoric water. Water in the lower Devonian Richfield, Detroit River Group, and Niagara-Salina formations is very saline Ca-Na-Cl brine. Cl/Br suggest it originated from seawater concentrated through the halite and into the MgSO{sub 4} salt facies, with an origin linked to the Silurian and Devonian salt deposits. Dolomitization and halite precipitation increased the Ca/Na, aluminosilicate reactions removed K, and bacterial action or CaSO{sub 4} precipitation removed SO{sub 4} from this brine. Water chemistry in the Ordovician Trenton-Black River formations indicates dilution of evapo-concentrated seawater by fresh or seawater. Possible saline end-members include Ordovician seawater, present-day upper Devonian brine, or Ca-Cl brine from the deeper areas in the basin.

  2. The feasibility of deep well injection for brine disposal

    E-Print Network [OSTI]

    Spongberg, Martin Edward

    1994-01-01T23:59:59.000Z

    feasibility. The methodology is utilized to make a preliminary evaluation of a proposed brine injection project in the Dove Creek area of King and Stonewall Counties, North Central Texas. Four known deep aquifers are modeled, using the SWIFT/486 software...

  3. acartia tonsa brine: Topics by E-print Network

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

    be determined in advance. We estimate the optimal design of an average-sized ice rink, including pipe diameter, depth and brine type (ethylene glycol and ammonia). We also...

  4. Up-Scaling Geochemical Reaction Rates Accompanying Acidic CO2-Saturated Brine Flow in Sandstone Aquifers

    E-Print Network [OSTI]

    New York at Stoney Brook, State University of

    1 Up-Scaling Geochemical Reaction Rates Accompanying Acidic CO2-Saturated Brine Flow in Sandstone models. As a step toward this, network flow models were used to simulate the flow of CO2-saturated brine

  5. Nevada: Geothermal Brine Brings Low-Cost Power with Big Potential...

    Energy Savers [EERE]

    Nevada: Geothermal Brine Brings Low-Cost Power with Big Potential Nevada: Geothermal Brine Brings Low-Cost Power with Big Potential August 21, 2013 - 12:00am Addthis Utilizing a 1...

  6. Gas Content of Gladys McCall Reservoir Brine A Topical Report

    Office of Scientific and Technical Information (OSTI)

    gas t o brine ratio. This w i l l result i n cubic feet of methane, ethane, propane, etc. per barrel of brine, Then, the contributions from sample points are added until...

  7. Geochemical evidence for possible natural migration of Marcellus Formation brine to

    E-Print Network [OSTI]

    Geochemical evidence for possible natural migration of Marcellus Formation brine to shallow possible migration of Marcellus brine through naturally occurring pathways. The occurrences of saline water, because of natural hydraulic connections to deeper formations. formation water isotopes Marcellus Shale

  8. Constraints on origin and evolution of Red Sea brines from helium and argon isotopes

    E-Print Network [OSTI]

    Winckler, Gisela

    Constraints on origin and evolution of Red Sea brines from helium and argon isotopes Gisela November 2000 Abstract Brines from three depressions along the axis of the Red Sea, the Atlantis II II and the Discovery brines originating from locations in the central Red Sea show 4 He

  9. Don Juan Pond, Antarctica: Near-surface CaCl2-brine feeding Earth's most saline

    E-Print Network [OSTI]

    Marchant, David R.

    Don Juan Pond, Antarctica: Near-surface CaCl2-brine feeding Earth's most saline lake lineae (RSL), thought to represent seasonal brines, has sparked interest in analogous environments watershed and show that this, together with small amounts of meltwater, are capable of generating brines

  10. Dynamics and storage of brine in mid-ocean ridge hydrothermal systems

    E-Print Network [OSTI]

    Wilcock, William

    Dynamics and storage of brine in mid-ocean ridge hydrothermal systems Fabrice J. Fontaine1 and brine phases. Time series of vent temperature and salinity (chlorinity) show that some black-smoker vent below seawater for over a decade, which raises important questions concerning the fate of brines

  11. of brine heterogeneity in modern sedimentary basins (6) imply inefficiency of mixing and the

    E-Print Network [OSTI]

    Boyce, C. Kevin

    of brine heterogeneity in modern sedimentary basins (6) imply inefficiency of mixing and the potential for preservation of individual, metal- charged brine reservoirs that could be tapped at some later. The observation that the texturally later brines have higher metal contents is consistent with this model

  12. Brine fluxes from growing sea ice A. J. Wells,1,2

    E-Print Network [OSTI]

    Wettlaufer, John S.

    Brine fluxes from growing sea ice A. J. Wells,1,2 J. S. Wettlaufer,1,2,3 and S. A. Orszag2] It is well known that brine drainage from growing sea ice has a controlling influence on its mechanical oceans. When the ice has exceeded a critical thickness the drainage process is dominated by brine

  13. On the Reliability of Numerical Solutions of Brine Transport in Groundwater: Analysis of In ltration

    E-Print Network [OSTI]

    Bergamaschi, Luca

    On the Reliability of Numerical Solutions of Brine Transport in Groundwater: Analysis of In#12, brine transport List of symbols c normalized salt concentration c k l value of concentration on triangle:37; p.2 #12; Reliability of Numerical Simulations of Brine Transport in Groundwater 3 equivalent

  14. Accurate Thermodynamic Model for the Calculation of H2S Solubility in Pure Water and Brines

    E-Print Network [OSTI]

    Zhu, Chen

    Accurate Thermodynamic Model for the Calculation of H2S Solubility in Pure Water and Brines Zhenhao mineral solubility in H2S saturated brines. An example calculation for galena solubility is given. 1 gasification process.5,6 Sequestration of the gases into geological brine formation is one of the promising

  15. WERE AQUEOUS RIPPLES ON MARS FORMED BY FLOWING BRINES? MICHAEL P. LAMB, JOHN P. GROTZINGER

    E-Print Network [OSTI]

    WERE AQUEOUS RIPPLES ON MARS FORMED BY FLOWING BRINES? MICHAEL P. LAMB, JOHN P. GROTZINGER are not observed. Recent thermodynamic modeling indicates that these brines could have had higher densities (by up whether ripples could have been stable bed forms under flowing Martian brines. To this end, we compiled

  16. Advanced biochemical processes for geothermal brines: Current developments

    SciTech Connect (OSTI)

    Premuzic, E.T.; Lin, M.S.; Bohenek, M. [Brookhaven National Lab., Upton, NY (United States). Energy Science and Technology Div.; Bajsarowicz, V. [CET Environmental Services, Inc., Richmond, CA (United States); McCloud, M. [C.E. Holt/California Energy, Pasadena, CA (United States)

    1997-07-07T23:59:59.000Z

    A research program at Brookhaven National Laboratory (BNL) which deals with the development and application of processes for the treatment of geothermal brines and sludges has led to the identification and design of cost-efficient and environmentally friendly treatment methodology. Initially the primary goal of the processing was to convert geothermal wastes into disposable materials whose chemical composition would satisfy environmental regulations. An expansion of the r and D effort identified a combination of biochemical and chemical processes which became the basis for the development of a technology for the treatment of geothermal brines and sludges. The new technology satisfies environmental regulatory requirements and concurrently converts the geothermal brines and sludges into commercially promising products. Because the chemical composition of geothermal wastes depends on the type of the resource, the emerging technology has to be flexible so that it can be readily modified to suit the needs of a particular type of resource. Recent conceptional designs for the processing of hypersaline and low salinity brines and sludges will be discussed.

  17. Oil production enhancement through a standardized brine treatment. Final report

    SciTech Connect (OSTI)

    Adewumi, A.; Watson, R.; Tian, S.; Safargar, S.; Heckman, S.; Drielinger, I.

    1995-08-01T23:59:59.000Z

    In order to permit the environmentally safe discharge of brines produced from oil wells in Pennsylvania to the surface waters of the Commonwealth and to rapidly brings as many wells as possible into compliance with the law, the Pennsylvania Oil and Gas Association (POGAM) approached the Pennsylvania State University to develop a program designed to demonstrate that a treatment process to meet acceptable discharge conditions and effluent limitations can be standardized for all potential stripper wells brine discharge. After the initial studies, the first phase of this project was initiated. A bench-scale prototype model was developed for conducting experiments in laboratory conditions. The experiments pursued in the laboratory conditions were focused on the removal of ferrous iron from synthetically made brine. Iron was selected as the primary heavy metals for studying the efficiency of the treatment process. The results of a number of experiments in the lab were indicative of the capability of the proposed brine treatment process in the removal of iron. Concurrent with the laboratory experiments, a comprehensive and extensive kinetic study was initiated. This study was necessary to provide the required data base for process modeling. This study included the investigation of the critical pH as well as the rate and order of reactions of the studied elements: aluminum, lead, zinc, and copper. In the second phase of this project, a field-based prototype was developed to evaluate and demonstrate the treatment process effectiveness. These experiments were conducted under various conditions and included the testing on five brines from different locations with various dissolved constituents. The outcome of this research has been a software package, currently based on iron`s reactivity, to be used for design purposes. The developed computer program was refined as far as possible using the results from laboratory and field experiments.

  18. Proper use of sodium bisulfite with minimal salt penetration during brine immersion freezing of shrimp

    E-Print Network [OSTI]

    Broussard, Suzanne Rene

    1988-01-01T23:59:59.000Z

    solution reduced the 41 120 100 0 0 80 E CL CL CV g 60 CL 40 20 ? ~ 0:23, CaCI2. NaCI ? ? & 5:18, Caclz. NaCI ? ? 0 8:15, CaCI2. NaCI 0 4 6 Days on Ice 10 Figure 13-Residual sulfur dioxide on thawed brine frozen shrimp frozen... freezing for two trials. 34 13-Residual sulfur dioxide on thawed brine frozen shrimp frozen in different brine immersion media 41 Figure 14- Black spot development on thawed brine frozen shrimp frozen in different brine immersion media Page 42...

  19. Analysis of anions in geological brines using ion chromatography

    SciTech Connect (OSTI)

    Merrill, R.M.

    1985-03-01T23:59:59.000Z

    Ion chromatographic procedures for the determination of the anions bromide, sulfate, nitrite, nitrate, phosphate, and iodide in brine samples have been developed and are described. The techniques have been applied to the analysis of natural brines, and geologic evaporites. Sample matrices varied over a range from 15,000 mg/L to 200,000 mg/L total halogens, nearly all of which is chloride. The analyzed anion concentrations ranged from less than 5 mg/L in the cases of nitrite, nitrate, and phosphate, to 20,000 mg/L in the case of sulfate. A technique for suppressing chloride and sulfate ions to facilitate the analysis of lower concentration anions is presented. Analysis times are typically less than 20 minutes for each procedure and the ion chromatographic results compare well with those obtained using more time consuming classical chemical analyses. 10 references, 14 figures.

  20. 2 INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 EXPERIMENTAL STUDY OF CRUDE/BRINE/ROCK INTERACTION AT

    E-Print Network [OSTI]

    Schechter, David S.

    44 2 INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 EXPERIMENTAL STUDY OF CRUDE of imbibition or oil production rate, particularly after seven days or more aging time with oil. However in this section and expand the understanding of the interactions of the Spraberry reservoir rock, oil and brine

  1. A cost-effective statistical screening method to detect oilfield brine contamination

    SciTech Connect (OSTI)

    Alyanak, N.; Grace, J.T.; Campbell, M.D. [United Resources International, Houston, TX (United States)

    1995-12-01T23:59:59.000Z

    A statistical screening method has been developed using Tolerance Limits for barium (Ba{sup +2}) to identify contamination of a fresh-water aquifer by oilfield brines. The method requires an understanding of the local hydrochemistry of oilfield brines, inexpensive, Publicly available hydrochemical data, a single sample analysis from the suspect well and the application of a simple statistical procedure. While this method may not provide absolute evidence of oilfield brine contamination of a fresh-water aquifer, it does identify conditions where brine contamination is a strong probability over other possible sources of chlorides.

  2. Space

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3Biology|Solar windMarch 26,SowjanyaSpace Space The

  3. Space

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3Biology|Solar windMarch 26,SowjanyaSpace Space

  4. Abstract--The unavailability of a flexible system for real-time testing of decision-support algorithms in a pre-hospital

    E-Print Network [OSTI]

    and showed that the platform can support a quick development cycle for real-time decision-support algorithms1 Abstract--The unavailability of a flexible system for real- time testing of decision for life-saving interventions and immediate evacuation, and advises on appropriate therapeutic actions [1

  5. Pressure Buildup and Brine Migration During CO2 Storage in Multilayered Aquifers

    E-Print Network [OSTI]

    Zhou, Quanlin

    . Introduction Carbon dioxide capture combined with geologic stor- age (CCS) in suitable subsurface formations-6584.2012.00972.x potentially creating far-ranging pressure buildup and brine displacement in deep CO2 storage of resident brine caused by CCS operations require modeling/analysis tools of considerable complexity (Celia

  6. Conservative behavior of uranium vs. salinity in Arctic sea ice and brine Christelle Not a,

    E-Print Network [OSTI]

    Available online 23 December 2011 Keywords: Uranium Salinity Sea ice Brine Seawater Arctic UraniumConservative behavior of uranium vs. salinity in Arctic sea ice and brine Christelle Not a, ,1 disequilibrium The conservative behavior of uranium (U) with respect to salinity in open ocean waters is widely

  7. RIS-M-2260 HEAT GRADIENT INDUCED MIGRATION OF BRINE INCLUSIONS IN ROCK SALT

    E-Print Network [OSTI]

    RISØ-M-2260 HEAT GRADIENT INDUCED MIGRATION OF BRINE INCLUSIONS IN ROCK SALT Mathematical treatment project. Abstract. A mathematical model for the brine migration in rock salt around an infinite line heat source is set up. The tempera- ture field around the time dependent heat source is calculated by use

  8. Validation of classical density-dependent solute transport theory for stable, high-concentration-gradient brine displacements in

    E-Print Network [OSTI]

    Hassanizadeh, S. Majid

    -concentration-gradient brine displacements in coarse and medium sands S.J. Watson a,1 , D.A. Barry a,1 , R.J. Schotting b,*, S by a brine solution, under either constant head or constant volume flux conditions. The experimental data, significantly less ex- perimental research has been conducted to investigate high-concentration (e.g., brine

  9. PII S0016-7037(01)00901-2 Effect of light and brine shrimp on skeletal 13

    E-Print Network [OSTI]

    Grottoli, Andréa G.

    PII S0016-7037(01)00901-2 Effect of light and brine shrimp on skeletal 13 C in the Hawaiian coral, or high concentrations of brine shrimp. Decreases in light from 100% resulted in significant decreases. Increases in brine shrimp concentrations resulted in increased skeletal 13 C levels. This unexpected outcome

  10. Dense water formation on the northwestern shelf of the Okhotsk Sea: 1. Direct observations of brine rejection

    E-Print Network [OSTI]

    Talley, Lynne D.

    Dense water formation on the northwestern shelf of the Okhotsk Sea: 1. Direct observations of brine 2004; accepted 21 April 2004; published 1 July 2004. [1] Dense Shelf Water (DSW) formation due to brine this period. The density increase terminated abruptly in late February, while the active brine rejection

  11. PII S0016-7037(01)00579-8 The origin and evolution of base metal mineralising brines and hydrothermal fluids,

    E-Print Network [OSTI]

    Banks, David

    PII S0016-7037(01)00579-8 The origin and evolution of base metal mineralising brines are the source of the mineralising fluids. Cl and Br systematics suggest that the brines were formed either cation composition (Na, Ca, K, Mg) of the brines is not consistent solely with evaporation processes

  12. Digital I&C systems in nuclear power plants. Risk-screening of environmental stressors and a comparison of hardware unavailability with an existing analog system

    SciTech Connect (OSTI)

    Hassan, M.; Vesely, W.E.

    1998-01-01T23:59:59.000Z

    In this report, we present a screening study to identify environmental stressors for digital instrumentation and control (I&C) systems in a nuclear power plant (NPP) which can be potentially risk-significant, and compare the hardware unavailability of such a system with that of its existing analog counterpart. The stressors evaluated are temperature, humidity, vibration, radiation, electro-magnetic interference (EMI), and smoke. The results of risk-screening for an example plant, subject to some bounding assumptions and based on relative changes in plant risk (core damage frequency impacts of the stressors), indicate that humidity, EMI from lightning, and smoke can be potentially risk-significant. Risk from other sources of EMI could not be evaluated for a lack of data. Risk from temperature appears to be insignificant as that from the assumed levels of vibrations. A comparison of the hardware unavailability of the existing analog Safety Injection Actuation System (SIAS) in the example plant with that of an assumed digital upgrade of the system indicates that system unavailability may be more sensitive to the level of redundancy in elements of the digital system than to the environmental and operational variations involved. The findings of this study can be used to focus activities relating to the regulatory basis for digital I&C upgrades in NPPs, including identification of dominant stressors, data-gathering, equipment qualification, and requirements to limit the effects of environmental stressors. 30 refs., 8 figs., 26 tabs.

  13. Seizing a species : the story of the Great Salt Lake brine shrimp harvest

    E-Print Network [OSTI]

    Wotipka, Samuel Alex

    2014-01-01T23:59:59.000Z

    In the early 1950s, C.C. "Sparkplug" Sanders began harvesting brine shrimp from Utah's Great Salt Lake. Sanders built up a small business selling their eggs, called "cysts, to aquarium stores across the country. During the ...

  14. Soils and Brine Geochemistry and Mineralogy of Hyperarid Desert Playa, Ouargla Basin,

    E-Print Network [OSTI]

    Ahmad, Sajjad

    Soils and Brine Geochemistry and Mineralogy of Hyperarid Desert Playa, Ouargla Basin, Algerian. The chemical and mineralogical specificity of this hyperarid ecosystem has been compared to other areas under

  15. Behavior of type 304 and type 316 austenitic stainless in 55% lithium bromide heavy brine environments

    SciTech Connect (OSTI)

    Itzhak, D.; Elias, O. (Ben-Gurion Univ., Beer-Sheva (Israel). Dept. of Materials Engineering)

    1994-02-01T23:59:59.000Z

    Cylindrical tensile specimens of AISI type 304 (UNS S30400) and type 316 (UNS S31600) stainless steels (SS) were tested under constant-load conditions in 55% lithium bromide (LiBr) heavy brines at temperatures of 120 C and 140 C. Elongation and open-circuit potential (OCP) were recorded during the tensile test. Potentiodynamic polarization measurements were conducted, and the failed surface fractures were examined by scanning electron microscopy. The tested SS were subjected to stress corrosion under the test environments. Sensitivity was affected strongly by pH values. In LiBr brine of pH = 11.6, the passivation processes were more effective than in brine of pH = 6 [approximately] 8. Because of effective passivation behavior in brine of pH = 11.6, lower values of [delta]l[sub 0] were measured, indicating lower dislocation relaxation processes and high resistance to stress corrosion cracking.

  16. New Energy Efficient Method for Cleaning Oilfield Brines with Carbon Dioxide 

    E-Print Network [OSTI]

    Little, C. T.; Seibert, A. F.; Bravo, J. L.; Fair, J. R.

    1991-01-01T23:59:59.000Z

    Water contaminated with hydrocarbons often results during the production of oil. The polluted water, which may be naturally occurring or a result of water or steam flooding operations, must be cleaned before disposal or re-injection. These brines...

  17. Pathogenicity of a pseudomonad bacterium to larvae of penaeid and brine shrimp

    E-Print Network [OSTI]

    Huang, Chu-Liang

    1982-01-01T23:59:59.000Z

    OF SCIENCE August 1982 Major Subject: Veterinary Microbiology PATHOGENICITY OF A PSEUDOMONAD BACTERIUM TO LARVAE OF PENAEID AND BRINE SHRIMP A Thesis by CHU-LIANG HUANG Approved as to style and content by: (Chairman of Committee) (Member) (Member...) (Member) (Head of Department) August 1982 ABSTRACT Pathogenicity of a Pseudomonad Bacterium to Larvae of Penaeid and Brine Shrimp (August 1982) Chu-Liang Huang, B. S , National Taiwan University Chairman of Advisory Committee: Dr. Donald H. Lewis A...

  18. Study of thermal-gradient-induced migration of brine inclusions in salt. Final report

    SciTech Connect (OSTI)

    Olander, D.R.

    1984-08-01T23:59:59.000Z

    Natural salt deposits, which are being considered for high-level waste disposal, contain a small volume fraction of water in the form of brine inclusions distributed throughout the salt. Radioactive decay heating of the nuclear wastes will impose a temperature gradient on the surrounding salt which mobilizes the brine inclusions. Inclusions filled completely with brine (the all-liquid inclusions) migrate up the temperature gradient and eventually accumulate brine near the buried waste forms. The brine may slowly corrode or degrade the waste forms, which is undesirable. Therefore it is important to consider the migration of brine inclusions in salt under imposed temperature gradients to properly evaluate the performance of a future salt repository for nuclear wastes. The migration velocities of the inclusions were found to be dependent on temperature, temperature gradient, and inclusion shape and size. The velocities were also dictated by the interfacial mass transfer resistance at brine/solid interface. This interfacial resistance depends on the dislocation density in the crystal, which in turn, depends on the axial compressive loading of the crystal. At low axial loads, the dependence between the velocity and temperature gradient is nonlinear. At high axial loads, the interfacial resistance is reduced and the migration velocity depends linearly on the temperature gradient. All-liquid inclusions filled with mixed brines were also studied. For gas-liquid inclusions, helium, air and argon were compared. Migration studies were also conducted on single crystallites of natural salt as well as in polycrystalline natural salt samples. The behavior of the inclusions at large-ange grain boundaries was observed.

  19. Developing a Process for Commercial Silica Production from Geothermal Brines

    SciTech Connect (OSTI)

    Bourcier, W; Martin, S; Viani, B; Bruton, C

    2001-04-11T23:59:59.000Z

    Useful mineral by-products can be produced from geothermal brines. Although silica has many commercial uses, problems remain in producing a marketable product. We are conducting laboratory and modeling studies aimed at optimizing for rubber additive use, the properties of silica precipitates from Salton Sea and Coso-like geothermal fluids, Our goal is to develop a robust technique for producing silicas that have desirable physical and chemical properties for commercial use, while developing a generic understanding of silica precipitation that will allow extraction to be extended to additional fluid types, and to be easily modified to produce new types of marketable silica. Our experiments start with an acidified geothermal fluid similar to those treated by pH modification technology. Silica precipitation is induced by adding base and/or adding Mg or Ca salts to affect the nature of the precipitate. For the analog Salton Sea fluids, adding base alone caused silica to precipitate fairly rapidly. To date, we have characterized precipitates from experiments in which the final pH varied from 4 to 8, where NaOH and Na{sub 2}C0{sub 3} were added as bases, and CaCl{sub 2} and MgCl{sub 2} were added as salts. SEM photos of the silica precipitates from the Salton Sea and Cos0 fluids show that the silica particles are clusters of smaller silica particles down to the resolution of the SEM (about 80-100 nm in diameter). The particle sizes and surface areas of silicas from the Salton Sea and Coso analog brines are similar to the properties of the Degussa silica commonly used as a rubber additive. An evaluation of the strength of the silica-organic bond as tested by dispersion in oil (polybutadiene) was inconclusive. Neither the Degussa materials nor our laboratory precipitates dispersed readily in nor dispersed down to the fundamental particle size. Preliminary NMR data indicates that the Degussa silica has a smaller degree of silica polymerization (a slightly smaller average number of Si-0 bonds per silica tetrahedron) than the synthetic samples, but a comparable degree of hydrogen bonding of the surface silanol sites.

  20. Hard-bottom macrofauna of the East Flower Garden brine seep: impact of a long term, point-source brine discharge

    E-Print Network [OSTI]

    Gittings, Stephen Reed

    1983-01-01T23:59:59.000Z

    canyon transect were sta- tions R6 and R7, both of which were on top of Cottonwick Rock, ap- proximately 2 m above the canyon floor. Figure 5 (p. 12) shows that salinity and sulfide at these stations were at normal marine levels. Though the total...HARD-BOT1'OM MACROFAUNA OF THE EAST FLOWER GARDEN BRINE SEEP: IMPACT OF A LONG TERM, POINT-SOURCE BRINE DISCHARGE A Thesis by STEPHEN REED GITTINGS Submitted to the Graduate College of Texas A&M University in partial fulfillment...

  1. Numerical simulations of lab-scale brine-water mixing experiments.

    SciTech Connect (OSTI)

    Khalil, Imane; Webb, Stephen Walter

    2006-10-01T23:59:59.000Z

    Laboratory-scale experiments simulating the injection of fresh water into brine in a Strategic Petroleum Reserve (SPR) cavern were performed at Sandia National Laboratories for various conditions of injection rate and small and large injection tube diameters. The computational fluid dynamic (CFD) code FLUENT was used to simulate these experiments to evaluate the predictive capability of FLUENT for brine-water mixing in an SPR cavern. The data-model comparisons show that FLUENT simulations predict the mixing plume depth reasonably well. Predictions of the near-wall brine concentrations compare very well with the experimental data. The simulated time for the mixing plume to reach the vessel wall was underpredicted for the small injection tubes but reasonable for the large injection tubes. The difference in the time to reach the wall is probably due to the three-dimensional nature of the mixing plume as it spreads out at the air-brine or oil-brine interface. The depth of the mixing plume as it spreads out along the interface was within a factor of 2 of the experimental data. The FLUENT simulation results predict the plume mixing accurately, especially the water concentration when the mixing plume reaches the wall. This parameter value is the most significant feature of the mixing process because it will determine the amount of enhanced leaching at the oil-brine interface.

  2. West Hackberry Strategic Petroleum Reserve site brine-disposal monitoring, Year I report. Volume III. Biological oceanography. Final report

    SciTech Connect (OSTI)

    DeRouen, L.R.; Hann, R.W.; Casserly, D.M.; Giammona, C.; Lascara, V.J. (eds.)

    1983-02-01T23:59:59.000Z

    The Department of Energy's Strategic Petroleum Reserve Program began discharging brine into the Gulf of Mexico from its West Hackberry site near Cameron, Louisiana in May 1981. The brine originates from underground salt domes being leached with water from the Intracoastal Waterway, making available vast underground storage caverns for crude oil. The effects of brine discharge on aquatic organisms are presented in this volume. The topics covered are: benthos; nekton; phytoplankton; zooplankton; and data management.

  3. Sorption of cesium and strontium from concentrated brines by backfill barrier materials

    SciTech Connect (OSTI)

    Winslow, C D

    1981-03-01T23:59:59.000Z

    The sorption of radionuclides from potentially intruding groundwater at a nuclear waste repository is a major chemical function of backfill barriers. In this study, various materials (including clays, zeolites and an inorganic ion exchanger) were screened for the sorption of the fission products cesium and strontium in concentrated brines. Representative brines A and B for the Waste Isolation Pilot Plant (WIPP), a proposed radioactive waste repository and test facility in bedded salt were used. Sorption properties were quantified using empirical distribution coefficients, k/sub d/. Of the materials examined, sodium titanate had the highest k/sub d/ for the sorption of Sr(II) in both brine A (k/sub d/ = 125 ml/g) and brine B(k/sub d/ = 500 to 600 ml/g). A mordenite-type zeolite was the most effective getter for Cs(I) in brine A (k/sub d = 27 ml/g), while illite yielded the highest k/sub d/ for Cs(I) in brine B (k/sub d/ = 115 ml/g). The relative merit of these k/sub d/ values is evaluated in terms of calculated estimates of breakthrough times for a backfill barrier containing the getter. Results show that a backfill mixture containing these getters is potentially an effective barrier to the migration of Sr(II) and Cs(I), although further study (especially for the sorption of cesium from brine A) is recommended. Initial mechanistic studies revealed competing ion effects which would support an ion exchange mechanism. K/sub d/'s were constant over a Sr(II) concentration range of 10/sup -11/ to 10/sup -5/ M and a Cs(I) concentration range of 10/sup -8/ to 10/sup -5/ M, supporting the choice of a linear sorption isotherm as a model for the results. Constant batch composition was shown to be attained within one week.

  4. Dewetting of silica surfaces upon reactions with supercritical CO2 and brine: Pore-scale studies in micromodels

    E-Print Network [OSTI]

    Kim, Y.

    2013-01-01T23:59:59.000Z

    accumulation of residual water in pendular structuresAfter drainage, the residual water remained as thick filmsdisplaced brine), the residual water was initially retained

  5. Developing a process for commercial silica production from Salton Sea brines

    SciTech Connect (OSTI)

    Bourcier, W; McCutcheon, M; Leif, R; Bruton, C

    2000-09-25T23:59:59.000Z

    The goal of this joint LLNL-CalEnergy project is to develop a method for precipitating marketable silica from spent Salton Sea Geothermal Field (SSGF) brines. Many markets for silica exist. We have initially targeted production of silica as a rubber additive. Silica reinforced rubber gives tires less rolling resistance, greater tear strength, and better adhesion to steel belts. Previous silica precipitates produced by CalEnergy from Salton Sea brines were not suitable as rubber additives. They did not to disperse well in the rubber precursors and produced inferior rubber. CalEnergy currently minimizes silica scaling in some of their production facilities by acidifying the brine pH. The rate of silica precipitation slows down as the pH is lowered, so that energy extraction and brine reinfection are possible without unacceptable amounts of scaling even with more than 700 ppm SiO{sub 2} in solution. We are adding a step in which a small amount of base is added to the acidified brine to precipitate silica before reinfection. By carefully controlling the type, rate, and amount of base addition, we can optimize the properties of the precipitate to approach those of an ideal rubber additive.

  6. Modeling gas and brine migration for assessing compliance of the Waste Isolation Pilot Plant

    SciTech Connect (OSTI)

    Vaughn, P. [Applied Physics, Inc., Albuquerque, NM (United States); Butcher, B. [Sandia National Labs., Albuquerque, NM (United States); Helton, J. [Arizona State Univ., Tempe, AZ (United States); Swift, P. [Tech. Reps., Inc., Albuquerque, NM (United States)

    1993-10-01T23:59:59.000Z

    At the request of the WIPP Project Integration Office (WPIO) of the DOE, the WIPP Performance Assessment (PA) Department of Sandia National Laboratories (SNL) has completed preliminary uncertainty and sensitivity analyses of gas and brine migration away from the undisturbed repository. This paper contains descriptions of the numerical model and simulations, including model geometries and parameter values, and a summary of major conclusions from sensitivity analyses. Because significant transport of contaminants can only occur in a fluid (gas or brine) medium, two-phase flow modeling can provide an estimate of the distance to which contaminants can migrate. Migration of gas or brine beyond the RCRA ``disposal-unit boundary`` or the Standard`s accessible environment constitutes a potential, but not certain, violation and may require additional evaluations of contaminant concentrations.

  7. Exposure and effects of oilfield brine discharges on western sandpipers (Calidris mauri) in Nueces Bay, Texas

    SciTech Connect (OSTI)

    Rattner, B.A.; Melancon, M.J. [National Biological Survey, Laurel, MD (United States); Capizzi, J.L. [Texas A& M Univ., College Station, TX (United States); King, K.A. [Fish and Wildlife Service, Phoenix, AZ (United States); LeCaptain, L.J. [Fish and Wildlife Service, Spokane, WA (United States)

    1995-05-01T23:59:59.000Z

    Discharge of oilfield brines into fresh and estuarine waters is a common disposal practice in Texas. Petroleum crude oil (PCO) extraction from underground stores includes the removal of a significant amount of water along with the oil. Several methods may be used to separate the oil and water fractions, including tank batteries, heat separation, and skimming ponds. Disposal of the resultant produced water (oilfield brine) may be accomplished by deep-well injection or discharge to surface waters. In Texas, an estimated 766,000 barrels of oilfield brine were discharged daily into tidal waters in 1979. The maximum concentration for oil and grease in these discharges permitted by the Texas Railroad Commission is 25 ppm. Several studies have shown that oilfield brines are toxic to a wide range of marine life, yet little is known about their effects on birds and mammals. Exposure to petroleum in oilfield wastes could evoke toxicological effects in some waterbird species. Avian responses to PCO exposure are highly variable, including cessation of growth, osmoregulatory impairment, endocrine dysfunction, hemolytic anemia, altered blood chemistry, cytochrome P450 induction, reduced reproductive success, and mortality. Oilfield brine discharges may soon be the largest and most pervasive source of contaminants entering Texas estuaries. Migratory and resident birds feeding in the vicinity of discharge sites may be ingesting food items contaminated with petroleum hydrocarbons, heavy metals and salts in sufficient quantities to evoke toxicity. The present study of wintering western sandpipers (Calidris mauri) that feed and roost near discharge sites sought to examine oilfield brine exposure and effects through quantification of contaminant burdens, morphological characteristics, and cytochrome P450-associated monooxygenase activities. 20 refs., 2 tabs.

  8. Formation and character of an ancient 19-m ice cover and underlying trapped brine in an ``ice-sealed'' east

    E-Print Network [OSTI]

    Priscu, John C.

    Formation and character of an ancient 19-m ice cover and underlying trapped brine in an ``ice bed year-round. New ice-core analysis and tempera- ture data show that beneath 19 m of ice is a water°C. The ice cover thickens at both its base and surface, sealing concentrated brine beneath. The ice

  9. Repassivation of 13% Cr steel dependent on brine pH

    SciTech Connect (OSTI)

    Skogsberg, J.W.; Walker, M.L.

    2000-02-01T23:59:59.000Z

    A joint laboratory project, involving an oil production and oil well service company, investigated repassivation of martensitic 13% Cr steel. The rate at which this alloy is repassivated after losing its protective passive oxide layer to hydrochloric acid (HCI) depended on the pH of the spent acid returns. Test samples of 13% Cr cut from oilfield tubing were subjected to a fluid sequence of (1) initial brine, (2) HCI, (3) spent acid, and (4) final brine. In 9 days, the samples regained their passive oxide layers. When spent acid was taken out of the fluid sequence, the samples regained passive oxide layers in 3 days.

  10. Brine transport studies in the bedded salt of the Waste Isolation Pilot Plant (WIPP)

    SciTech Connect (OSTI)

    McTigue, D.F.; Nowak, E.J.

    1987-01-01T23:59:59.000Z

    Brine flow has been measured to unheated boreholes for periods of a few days and to heated holes for two years in the WIPP facility. It is suggested that Darcy flow may dominate the observed influx of brine. Exact solutions to a linearized model for one-dimensional, radial flow are evaluated for conditions approximating the field experiments. Flow rates of the correct order of magnitude are calculated for permeabilities in the range 10/sup -21/ to 10/sup -20/ m/sup 2/ (1 to 10 nanodarcy) for both the unheated and heated cases. 20 refs., 3 figs., 1 tab.

  11. Brine release based on structural calculations of damage around an excavation at the Waste Isolation Pilot Plant (WIPP)

    SciTech Connect (OSTI)

    Munson, D.E.; Jensen, A.L.; Webb, S.W. [Sandia National Labs., Albuquerque, NM (United States); DeVries, K.L. [RE/SPEC, Inc., Rapid City, SD (United States)

    1996-02-01T23:59:59.000Z

    In a large in situ experimntal circular room, brine inflow was measured over 5 years. After correcting for evaporation losses into mine ventilation air, the measurements gave data for a period of nearly 3 years. Predicted brine accumulation based on a mechanical ``snow plow`` model of the volume swept by creep-induced damage as calculated with the Multimechanism Deformation Coupled Fracture model was found to agree with experiment. Calculation suggests the damage zone at 5 years effectively exends only some 0.7 m into the salt around the room. Also, because the mecahnical model of brine release gives an adequate explanation of the measured data, the hydrological process of brine flow appears to be rapid compared to the mechanical process of brine release.

  12. PII S0016-7037(00)00369-0 Ra isotopes and Rn in brines and ground waters of the Jordan-Dead Sea Rift Valley

    E-Print Network [OSTI]

    Yehoshua, Kolodny

    PII S0016-7037(00)00369-0 Ra isotopes and Rn in brines and ground waters of the Jordan-Dead Sea Valley waters being mixtures of fresh water with saline brines. Ra is efficiently extracted from surrounding rocks into the brine end member. 228 Ra/226 Ra ratios are exceptionally low 0.07 to 0.9, mostly

  13. PII S0016-7037(99)00441-X Sub sea floor boiling of Red Sea Brines: New indication from noble gas data

    E-Print Network [OSTI]

    Winckler, Gisela

    PII S0016-7037(99)00441-X Sub sea floor boiling of Red Sea Brines: New indication from noble gas in revised form December 8, 1999) Abstract--Hydrothermal brines from the Atlantis II Deep, Red Sea, have been depressions filled by highly saline brines (Hartmann et al., 1998a). The Atlantis II Deep, located

  14. Brine-assisted anatexis: Experimental melting in the system haplograniteH2ONaClKCl at deep-crustal conditions

    E-Print Network [OSTI]

    Manning, Craig

    Brine-assisted anatexis: Experimental melting in the system haplogranite­H2O­NaCl­KCl at deep2O ¼ 0:34 it is 0.55. This "brine trend" is similar to, but more pronounced than, the trend-rich granites. Minimum-melting curves in the presence of brines of constant XH2O have strongly positive d

  15. NOBOB-S: Salinity/Brine Exposure as a Biocide for Application to NOBOB Residuals

    E-Print Network [OSTI]

    , eggs and spores of many taxa within the sediments and residual water of their ballast tanks (Niimi a voluntary "best management practices" approach for residual ballast water and sediment for NOBOB vesselsNOBOB-S: Salinity/Brine Exposure as a Biocide for Application to NOBOB Residuals Primary

  16. Nonlinear Thermal Transport and Brine Convection in First Year Sea Ice

    E-Print Network [OSTI]

    Nonlinear Thermal Transport and Brine Convection in First Year Sea Ice M.J. McGuinness \\Lambda , H a programme recently set up to directly measure the thermal conductivity of young sea ice. An array of thermistors frozen into first­year Antarctic sea ice provides temperature against depth data, which is fitted

  17. Selenium Biotransformations in an Engineered Aquatic Ecosystem for Bioremediation of Agricultural Wastewater via Brine Shrimp

    E-Print Network [OSTI]

    Selenium Biotransformations in an Engineered Aquatic Ecosystem for Bioremediation of Agricultural Wastewater via Brine Shrimp Production Radomir Schmidt,, Prapakorn Tantoyotai, Sirine C. Fakra, Matthew A, Saskatchewan S7N 5E2, Canada United States Department of Agriculture, Agricultural Research Service, SJVASC

  18. Analysis of hydrocarbon removal methods for the management of oilfield brines and produced waters 

    E-Print Network [OSTI]

    Furrow, Brendan Eugene

    2005-11-01T23:59:59.000Z

    and globally, the petroleum industries challenge has been to develop a high-tech and cost effective method to purify the large volumes of oilfield brines and produced water. Currently, most of the produced water requires several pre- and post- treatment methods...

  19. Sulfate Removal from Reject Brined in Inland Desalination with Zero Liquid Discharge 

    E-Print Network [OSTI]

    Almasri, Dema A

    2013-07-03T23:59:59.000Z

    Sulfate is one of the most problematic ions present in reject brine in desalination systems due to its high potential of scale formation and membrane fouling; making it an obstacle in the application of zero liquid discharge. The ultra-high lime...

  20. Salt Brine Blending to Optimize Deicing and Anti-icing Performance and Cost

    E-Print Network [OSTI]

    Minnesota, University of

    Salt Brine Blending to Optimize Deicing and Anti-icing Performance and Cost Effectiveness Stephen J in Method? #12;Deicing and Anti-icing Treatments ·Sodium Chloride (NaCl) ·Cargill, NA Salt ·Magnesium Chloride (MgCl2) w/additives ·Envirotech Serv., Scotwood Ind., NA Salt ·Calcium Chloride (CaCl2) ·Tiger

  1. Investigation of oil injection into brine for the Strategic Petroleum Reserve : hydrodynamics and mixing experiments with SPR liquids.

    SciTech Connect (OSTI)

    Castaneda, Jaime N.; Cote, Raymond O.; Torczynski, John Robert; O'Hern, Timothy John

    2004-05-01T23:59:59.000Z

    An experimental program was conducted to study a proposed approach for oil reintroduction in the Strategic Petroleum Reserve (SPR). The goal was to assess whether useful oil is rendered unusable through formation of a stable oil-brine emulsion during reintroduction of degassed oil into the brine layer in storage caverns. An earlier report (O'Hern et al., 2003) documented the first stage of the program, in which simulant liquids were used to characterize the buoyant plume that is produced when a jet of crude oil is injected downward into brine. This report documents the final two test series. In the first, the plume hydrodynamics experiments were completed using SPR oil, brine, and sludge. In the second, oil reinjection into brine was run for approximately 6 hours, and sampling of oil, sludge, and brine was performed over the next 3 months so that the long-term effects of oil-sludge mixing could be assessed. For both series, the experiment consisted of a large transparent vessel that is a scale model of the proposed oil-injection process at the SPR. For the plume hydrodynamics experiments, an oil layer was floated on top of a brine layer in the first test series and on top of a sludge layer residing above the brine in the second test series. The oil was injected downward through a tube into the brine at a prescribed depth below the oil-brine or sludge-brine interface. Flow rates were determined by scaling to match the ratio of buoyancy to momentum between the experiment and the SPR. Initially, the momentum of the flow produces a downward jet of oil below the tube end. Subsequently, the oil breaks up into droplets due to shear forces, buoyancy dominates the flow, and a plume of oil droplets rises to the interface. The interface was deflected upward by the impinging oil-brine plume. Videos of this flow were recorded for scaled flow rates that bracket the equivalent pumping rates in an SPR cavern during injection of degassed oil. Image-processing analyses were performed to quantify the penetration depth and width of the oil jet. The measured penetration depths were shallow, as predicted by penetration-depth models, in agreement with the assumption that the flow is buoyancy-dominated, rather than momentum-dominated. The turbulent penetration depth model overpredicted the measured values. Both the oil-brine and oil-sludge-brine systems produced plumes with hydrodynamic characteristics similar to the simulant liquids previously examined, except that the penetration depth was 5-10% longer for the crude oil. An unexpected observation was that centimeter-size oil 'bubbles' (thin oil shells completely filled with brine) were produced in large quantities during oil injection. The mixing experiments also used layers of oil, sludge, and brine from the SPR. Oil was injected at a scaled flow rate corresponding to the nominal SPR oil injection rates. Injection was performed for about 6 hours and was stopped when it was evident that brine was being ingested by the oil withdrawal pump. Sampling probes located throughout the oil, sludge, and brine layers were used to withdraw samples before, during, and after the run. The data show that strong mixing caused the water content in the oil layer to increase sharply during oil injection but that the water content in the oil dropped back to less than 0.5% within 16 hours after injection was terminated. On the other hand, the sediment content in the oil indicated that the sludge and oil appeared to be well mixed. The sediment settled slowly but the oil had not returned to the baseline, as-received, sediment values after approximately 2200 hours (3 months). Ash content analysis indicated that the sediment measured during oil analysis was primarily organic.

  2. Chemistry of brines in salt from the Waste Isolation Pilot Plant (WIPP), southeastern New Mexico: a preliminary investigation

    SciTech Connect (OSTI)

    Stein, C.L.; Krumhansl, J.L.

    1986-03-01T23:59:59.000Z

    We present here analyses of macro- and microscopic (intracrystalline) brines observed within the WIPP facility and in the surrounding halite, with interpretations regarding the origin and history of these fluids and their potential effect(s) on long-term waste storage. During excavation, several large fluid inclusions were recovered from an area of highly recrystallized halite in a thick salt bed at the repository horizon (2150 ft below ground level). In addition, 52 samples of brine ''weeps'' were collected from walls of recently excavated drifts at the same stratigraphic horizon from which the fluid inclusion samples are assumed to have been taken. Analyses of these fluids show that they differ substantially in composition from the inclusion fluids and cannot be explained by mixing of the fluid inclusion populations. Finally, holes in the facility floor that filled with brine were sampled but with no stratographic control; therefore it is not possible to interpret the compositions of these brines with any accuracy, except insofar as they resemble the weep compositions but with greater variation in both K/Mg and Na/Cl ratios. However, the Ca and SO/sub 4/ values for the floor holes are relatively close to the gypsum saturation curve, suggesting that brines filling floor holes have been modified by the presence of gypsum or anhydrite, possibly even originating in one or more of the laterally continuous anhydrite units referred to in the WIPP literature as marker beds. In conclusion, the wide compositional variety of fluids found in the WIPP workings suggest that (1) an interconnected hydrologic system which could effectively transport radonuclides away from the repository does not exist; (2) brine migration studies and experiments must consider the mobility of intergranular fluids as well as those in inclusions; and (3) near- and far-field radionuclide migration testing programs need to consider a wide range of brine compositions rather than a few reference brines.

  3. West Hackberry Brine Disposal Project pre-discharge characterization. Final report

    SciTech Connect (OSTI)

    DeRouen, L.R.; Hann, R.W.; Casserly, D.M.; Giammona, C. (eds.) [eds.

    1982-01-01T23:59:59.000Z

    The physical, chemical and biological attributes are described for: (1) a coastal marine environment centered about a Department of Energy Strategic Petroleum Reserve (SPR) brine disposal site 11.4 km off the southwest coast of Louisiana; and (2) the lower Calcasieu and Sabine estuarine systems that provide leach waters for the SPR project. A three month sampling effort, February through April 1981, and previous investigations from the study area are integrated to establish baseline information for evaluation of impacts from brine disposal in the nearshore marine waters and from freshwater withdrawal from the coastal marsh of the Chenier Plain. January data are included for some tasks that sampled while testing and mobilizing their instruments prior to the February field effort. The study addresses the areas of physical oceanography, estuarine hydrology and hydrography, water and sediment quality, benthos, nekton, phytoplankton, zooplankton, and data management.

  4. Recovery Act: Molecular Simulation of Dissolved Inorganic Carbons for Underground Brine CO2 Sequestration

    SciTech Connect (OSTI)

    Goddard, William

    2012-11-30T23:59:59.000Z

    To further our understanding and develop the method for measuring the DICs under geological sequestration conditions, we studied the infrared spectra of DICs under high pressure and temperature conditions. First principles simulations of DICs in brine conditions were performed using a highly optimized ReaxFF-DIC forcefield. The thermodynamics stability of each species were determined using the 2PT method, and shown to be consistent with the Reax simulations. More importantly, we have presented the IR spectra of DIC in real brine conditions as a function of temperature and pressure. At near earth conditions, we find a breaking of the O-C-O bending modes into asymmetric and symmetric modes, separated by 100cm{sup -1} at 400K and 5 GPa. These results can now be used to calibrate FTIR laser measurements.

  5. Aromatic hydrocarbons associated with brines from geopressured wells. Annual report, fiscal 1985

    SciTech Connect (OSTI)

    Keeley, D.F.; Meriwether, J.R.

    1985-01-01T23:59:59.000Z

    Samples of cryocondensates - materials condensed at - 78.5/sup 0/C were taken on a regular basis from the gas stream for the USDOE geopressured wells. Most of the data has been taken from the Gladys McCall well as it has flowed on a regular and almost continous basis. The cryocondensates, not the ''condensate'' from gas wells, are almost exclusively aromatic hydrocarbons, primarily benzene, toluene, ethylbenzene, and the xylenes, but contain over 95 compounds, characterized using gas chromatographic-mass spectroscopy. The solubility in water and brine of benezene, toluene, ethylbenzene and o-xylene, some of the components of the cryocondensate, as well as distribution coefficients between water or brine and a standard oil have been measured. 25 refs.

  6. Biochemical solubilization of toxic salts from residual geothermal brines and waste waters

    DOE Patents [OSTI]

    Premuzic, Eugene T. (East Moriches, NY); Lin, Mow S. (Rocky Point, NY)

    1994-11-22T23:59:59.000Z

    A method of solubilizing metal salts such as metal sulfides in a geothermal sludge using mutant Thiobacilli selected for their ability to metabolize metal salts at high temperature is disclosed, The method includes the introduction of mutated Thiobacillus ferrooxidans and Thiobacillus thiooxidans to a geothermal sludge or brine. The microorganisms catalyze the solubilization of metal salts, For instance, in the case of metal sulfides, the microorganisms catalyze the solubilization to form soluble metal sulfates.

  7. Biochemical solubilization of toxic salts from residual geothermal brines and waste waters

    DOE Patents [OSTI]

    Premuzic, E.T.; Lin, M.S.

    1994-11-22T23:59:59.000Z

    A method of solubilizing metal salts such as metal sulfides in a geothermal sludge using mutant Thiobacilli selected for their ability to metabolize metal salts at high temperature is disclosed. The method includes the introduction of mutated Thiobacillus ferrooxidans and Thiobacillus thiooxidans to a geothermal sludge or brine. The microorganisms catalyze the solubilization of metal salts. For instance, in the case of metal sulfides, the microorganisms catalyze the solubilization to form soluble metal sulfates. 54 figs.

  8. Sulfate Removal from Reject Brined in Inland Desalination with Zero Liquid Discharge

    E-Print Network [OSTI]

    Almasri, Dema A

    2013-07-03T23:59:59.000Z

    SULFATE REMOVAL FROM REJECT BRINED IN INLAND DESALINATION WITH ZERO LIQUID DISCHARGE A Thesis by DEMA ALMASRI Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements... and help. I am thankful for my colleagues for their inspiration and assistance throughout the years in Texas A&M at Qatar. I am also grateful to my exceptional friends that were always there during my ups and downs. I am thankful for my irreplaceable...

  9. Energy optimization in ice hockey halls I. The system COP as a multivariable function, brine and design choices

    E-Print Network [OSTI]

    Andrea Ferrantelli; Paul Melóis; Miska Räikkönen; Martti Viljanen

    2013-05-03T23:59:59.000Z

    This work is the first in a series of articles addressing the energy optimization in ice hockey halls. Here we adopt an analytical method, called functional optimization, to find which design and operating conditions maximize the Coefficient Of Performance of the entire cooling system (brine pumps and cooling tower), which we call ${\\rm COP}_{sys}$. This is addressed as a function of several variables, like electric consumption and brine physical properties. By maximizing such function, the best configuration and brine choices for the system can thus be determined accurately and rigorously. We investigate the importance of pipe diameter, depth and brine type (ethylene glycol and ammonia) for average-sized ice rinks. An optimal brine density is found, and we compute the weight of the electric consumption of the brine pumps on ${\\rm COP}_{sys}$. Our formulas are validated with heat flow measurement data obtained at an ice hockey hall in Finland. They are also confronted with technical and cost-related constraints, and implemented by simulations with the program COMSOL Multiphysics. The multivariable approach here discussed is general, and can be applied to the rigorous preliminary study of diverse situations in building physics and in many other areas of interest.

  10. Tolerance to cadmium and cadmium-binding ligands in Great Salt Lake brine shrimp (Artemia salina)

    SciTech Connect (OSTI)

    Jayasekara, S.; Drown, D.B.; Sharma, R.P.

    1986-02-01T23:59:59.000Z

    Information on the accumulation of cadmium in cytosolic proteins of Great Lake brine shrimp (Artemia salina) was obtained from animals collected directly from the lake and also from animal hatched and maintained in three sublethal concentrations of cadmium (0.5, 2.0, 5.0 ppm) in saltwater aquaria. Brine shrimp growth under these conditions was monitored by measuring body lengths during a 7-day exposure period. Heat-stable, cadmium-binding ligands were isolated and identified by Sephadex G-75 chromatography and atomic absorption spectrophotometry. Cadmium was found to be equally distributed between high and low molecular weight proteins in animals collected from the lake and the 0.5 ppm cadmium group. There was also a slight growth stimulation noted in the 0.5-pm group. Higher cadmium incorporation was noted in low molecular weight fractions with increasing cadmium concentration in the exposure media. Low molecular weight fractions were also found to have high uv absorption characteristics at 250 nm and low absorption at 280 nm. Molecular weight of the cadmium-binding ligands was found to be 11,000 as estimated by the gel filtration method. De novo synthesis of this protein was increased as a function of cadmium concentration in the media. However, slow accumulation of cadmium in other protein fractions was also noticed in higher cadmium exposure groups, suggesting the existence of possible tolerance mechanisms in brine shrimp exposed to suspected acute cadmium concentrations.

  11. Utilizing rare earth elements as tracers in high TDS reservoir brines in CCS applications

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    McLing, Travis; Smith, William; Smith, Robert

    2014-01-01T23:59:59.000Z

    In this paper we report the result of research associated with the testing of a procedures necessary for utilizing natural occurring trace elements, specifically the Rare Earth Elements (REE) as geochemical tracers in Carbon Capture and Storage (CCS) applications. Trace elements, particularly REE may be well suited to serve as in situ tracers for monitoring geochemical conditions and the migration of CO?-charged waters within CCS storage systems. We have been conducting studies to determine the efficacy of using REE as a tracer and characterization tool in the laboratory, at a CCS analogue site in Soda Springs, Idaho, and at amore »proposed CCS reservoir at the Rock Springs Uplift, Wyoming. Results from field and laboratory studies have been encouraging and show that REE may be an effective tracer in CCS systems and overlying aquifers. In recent years, a series of studies using REE as a natural groundwater tracer have been conducted successfully at various locations around the globe. Additionally, REE and other trace elements have been successfully used as in situ tracers to describe the evolution of deep sedimentary Basins. Our goal has been to establish naturally occurring REE as a useful monitoring measuring and verification (MMV) tool in CCS research because formation brine chemistry will be particularly sensitive to changes in local equilibrium caused by the addition of large volumes of CO?. Because brine within CCS target formations will have been in chemical equilibrium with the host rocks for millions of years, the addition of large volumes of CO? will cause reactions in the formation that will drive changes to the brine chemistry due to the pH change caused by the formation of carbonic acid. This CO? driven change in formation fluid chemistry will have a major impact on water rock reaction equilibrium in the formation, which will impart a change in the REE fingerprint of the brine that can measured and be used to monitor in situ reservoir conditions. Our research has shown that the REE signature imparted to the formation fluid by the introduction of CO? to the formation, can be measured and tracked as part of an MMV program. Additionally, this REE fingerprint may serve as an ideal tracer for fluid migration, both within the CCS target formation, and should formation fluids migrate into overlying aquifers. However application of REE and other trace elements to CCS system is complicated by the high salt content of the brines contained within the target formations. In the United States by regulation, in order for a geologic reservoir to be considered suitable for carbon storage, it must contain formation brine with total dissolved solids (TDS) > 10,000 ppm, and in most cases formation brines have TDS well in excess of that threshold. The high salinity of these brines creates analytical problems for elemental analysis, including element interference with trace metals in Inductively Coupled Plasma Mass Spectroscopy (ICP-MS) (i.e. element mass overlap due to oxide or plasma phenomenon). Additionally, instruments like the ICP-MS that are sensitive enough to measure trace elements down to the parts per trillion level are quickly oversaturated when water TDS exceeds much more than 1,000 ppm. Normally this problem is dealt with through dilution of the sample, bringing the water chemistry into the instruments working range. However, dilution is not an option when analyzing these formation brines for trace metals, because trace elements, specifically the REE, which occur in aqueous solutions at the parts per trillion levels. Any dilution of the sample would make REE detection impossible. Therefore, the ability to use trace metals as in situ natural tracers in high TDS brines environments requires the development of methods for pre-concentrating trace elements, while reducing the salinity and associated elemental interference such that the brines can be routinely analyzed by standard ICP-MS methods. As part of the Big Sky Carbon Sequestration Project the INL-CAES has developed a rapid, easy to use proces

  12. PILOT TESTING: PRETREATMENT OPTIONS TO ALLOW RE-USE OF FRAC FLOWBACK AND PRODUCED BRINE FOR GAS SHALE RESOURCE DEVELOPMENT

    SciTech Connect (OSTI)

    Burnett, David

    2012-12-31T23:59:59.000Z

    The goal of the A&M DOE NETL Project No. DE-FE0000847 was to develop a mobile, multifunctional water treatment capability designed specifically for “pre-treatment” of field waste brine. The project consisted of constructing s mobile “field laboratory” incorporating new technology for treating high salinity produced water and using the lab to conduct a side-by-side comparison between this new technology and that already existing in field operations. A series of four field trials were performed utilizing the mobile unit to demonstrate the effectiveness of different technology suitable for use with high salinity flow back brines and produced water. The design of the mobile unit was based on previous and current work at the Texas A&M Separation Sciences Pilot Plant. The several treatment techniques which have been found to be successful in both pilot plant and field tests had been tested to incorporate into a single multifunctional process train. Eight different components were evaluated during the trials, two types of oil and grease removal, one BTEX removal step, three micro-filters, and two different nanofilters. The performance of each technique was measured by its separation efficiency, power consumption, and ability to withstand fouling. The field trials were a success. Four different field brines were evaluated in the first trial in New York. Over 16,000 gallons of brine were processed. Using a power cost of $.10 per kWh, media pretreatment power use averaged $0.004 per barrel, solids removal $.04 per barrel and brine “softening” $.84 per barrel. Total power cost was approximately $1.00 per barrel of fluid treated. In Pennsylvania, brines collected from frac ponds were tested in two additional trials. Each of the brines was converted to an oil-free, solids-free brine with no biological activity. Brines were stable over time and would be good candidates for use as a make-up fluid in a subsequent fracturing fluid design. Reports on all of the field trials and subcontractor research have been summarized in this Final Report. Individual field trial reports and research reports are contained in the companion volume titled “Appendices”

  13. Advanced biochemical processes for geothermal brines FY 1998 annual operating plan

    SciTech Connect (OSTI)

    NONE

    1997-10-01T23:59:59.000Z

    As part of the overall Geothermal Energy Research which is aimed at the development of economical geothermal resources production systems, the aim of the Advanced Biochemical Processes for Geothermal Brines (ABPGB) effort is the development of economic and environmentally acceptable methods for disposal of geothermal wastes and conversion of by-products to useful forms. Methods are being developed for dissolution, separation and immobilization of geothermal wastes suitable for disposal, usable in inert construction materials, suitable for reinjection into the reservoir formation, or used for recovery of valuable metals.

  14. Development of a flow injection analysis method for the determination of acrylamide copolymers in oilfield brines

    SciTech Connect (OSTI)

    Taylor, K.C.; Burke, R.A.; Schramm, L.L. [Petroleum Recovery Inst., Calgary, Alberta (Canada); Nasr-El-Din, H.A. [Saudi Aramco, Dhahran (Saudi Arabia)

    1995-11-01T23:59:59.000Z

    An automated method for the determination of acrylamide polymers by flow injection analysis (FIA) has been developed and optimized for routine use. The method has been extensively tested for interferences common in oilfield brines. Potential interferences were examined from Na{sup +}, Ca{sup 2+}, Cr{sup 3+}, Al{sup 3+}, Zr{sup 3+}, NH{sub 4}{sup +}, Cl{sup {minus}}, OH{sup {minus}}, CO{sub 3}{sup 2{minus}}, sample coloration, and commonly used surfactants. The analysis is specific for amides, and the sensitivity to concentration of amide groups in the polymer was shown to be constant as the degree of polymer hydrolysis was varied. The range of the method is 0.1 to 100 mg/L. Sample throughput is 30 samples/h with triplicate analysis. Relative standard deviations of 0.2% are readily obtained from standard solutions and 0.5% from complex samples (at 50 mg/L). The method is applicable to the determination of aqueous, acrylamide-based polymers in process streams, surface waters and oilfield brines.

  15. Advanced Membrane Filtration Technology for Cost Effective Recovery of Fresh Water from Oil & Gas Produced Brine

    SciTech Connect (OSTI)

    David B. Burnett

    2004-09-29T23:59:59.000Z

    Produced water is a major waste generated at the oil and natural gas wells in the state of Texas. This water could be a possible source of new fresh water to meet the growing demands of the state after treatment and purification. Treatment of brine generated in oil fields or produced water with an ultrafiltration membranes were the subject of this thesis. The characterization of ultrafiltration membranes for oil and suspended solids removal of produced water, coupled with the reverse osmosis (RO) desalination of brine were studied on lab size membrane testing equipment and a field size testing unit to test whether a viable membrane system could be used to treat produced water. Oil and suspended solids were evaluated using turbidity and oil in water measurements taken periodically. The research considered the effect of pressure and flow rate on membrane performance of produced water treatment of three commercially available membranes for oily water. The study also analyzed the flux through the membrane and any effect it had on membrane performance. The research showed that an ultrafiltration membrane provided turbidity removal of over 99% and oil removal of 78% for the produced water samples. The results indicated that the ultrafiltration membranes would be asset as one of the first steps in purifying the water. Further results on selected RO membranes showed that salt rejection of greater than 97% could be achieved with satisfactory flux and at reasonable operating cost.

  16. Fluid sampling and chemical modeling of geopressured brines containing methane. Final report, March 1980-February 1981

    SciTech Connect (OSTI)

    Dudak, B.; Galbraith, R.; Hansen, L.; Sverjensky, D.; Weres, O.

    1982-07-01T23:59:59.000Z

    The development of a flowthrough sampler capable of obtaining fluid samples from geopressured wells at temperatures up to 400/sup 0/F and pressures up to 20,000 psi is described. The sampler has been designed, fabricated from MP35N alloy, laboratory tested, and used to obtain fluid samples from a geothermal well at The Geysers, California. However, it has not yet been used in a geopressured well. The design features, test results, and operation of this device are described. Alternative sampler designs are also discussed. Another activity was to review the chemistry and geochemistry of geopressured brines and reservoirs, and to evaluate the utility of available computer codes for modeling the chemistry of geopressured brines. The thermodynamic data bases for such codes are usually the limiting factor in their application to geopressured systems, but it was concluded that existing codes can be updated with reasonable effort and can usefully explain and predict the chemical characteristics of geopressured systems, given suitable input data.

  17. Modeling Coupled THMC Processes and Brine Migration in Salt at High Temperatures

    SciTech Connect (OSTI)

    Rutqvist, Jonny; Blanco Martin, Laura; Mukhopadhyay, Sumit; Houseworth, Jim; Birkholzer, Jens

    2014-08-14T23:59:59.000Z

    In this report, we present FY2014 progress by Lawrence Berkeley National Laboratory (LBNL) related to modeling of coupled thermal-hydrological-mechanical-chemical (THMC) processes in salt and their effect on brine migration at high temperatures. LBNL’s work on the modeling of coupled THMC processes in salt was initiated in FY2012, focusing on exploring and demonstrating the capabilities of an existing LBNL modeling tool (TOUGH-FLAC) for simulating temperature-driven coupled flow and geomechanical processes in salt. This work includes development related to, and implementation of, essential capabilities, as well as testing the model against relevant information and published experimental data related to the fate and transport of water. we provide more details on the FY2014 work, first presenting updated tools and improvements made to the TOUGH-FLAC simulator, and the use of this updated tool in a new model simulation of long-term THM behavior within a generic repository in a salt formation. This is followed by the description of current benchmarking and validations efforts, including the TSDE experiment. We then present the current status in the development of constitutive relationships and the dual-continuum model for brine migration. We conclude with an outlook for FY2015, which will be much focused on model validation against field experiments and on the use of the model for the design studies related to a proposed heater experiment.

  18. Summary Results for Brine Migration Modeling Performed by LANL LBNL and SNL for the UFD Program

    SciTech Connect (OSTI)

    Kuhlman, Kristopher L

    2014-09-01T23:59:59.000Z

    This report summarizes laboratory and field observations and numerical modeling related to coupled processes involving brine and vapor migration in geologic salt, focusing on recent developments and studies conducted at Sandia, Los Alamos, and Berkeley National Laboratories. Interest into the disposal of heat-generating waste in salt has led to interest into water distribution and migration in both run-of-mine crushed and intact geologic salt. Ideally a fully coupled thermal-hydraulic-mechanical-chemical simulation is performed using numerical models with validated constitutive models and parameters. When mechanical coupling is not available, mechanical effects are prescribed in hydraulic models as source, boundary, or initial conditions. This report presents material associated with developing appropriate initial conditions for a non-mechanical hydrologic simulation of brine migration in salt. Due to the strong coupling between the mechanical and hydrologic problems, the initial saturation will be low for the excavation disturbed zone surrounding the excavation. Although most of the material in this report is not new, the author hopes it is presented in a format making it useful to other salt researchers.

  19. Barton, M.D.and Johnson, D.A., 2000 -Alternative Brine Sources for Fe-Oxide (-Cu-Au) Systems: Implications for Hydrothermal Alteration and Metals; in Porter, T.M. (Ed.),

    E-Print Network [OSTI]

    Barton, Mark D.

    Barton, M.D.and Johnson, D.A., 2000 -Alternative Brine Sources for Fe-Oxide (-Cu-Au) Systems-Gold &Related Deposits: AGlobal Perspective, Australian Mineral Foundation, Adelaide, pp 43-60 ALTERNATIVE BRINE, and the broader geologic setting(s). Geologic and geochemical evidence show that the ore-forming fluids are brines

  20. Energy optimization in ice hockey halls I. The system COP as a multivariable function, brine and design choices

    E-Print Network [OSTI]

    Ferrantelli, Andrea; Räikkönen, Miska; Viljanen, Martti

    2012-01-01T23:59:59.000Z

    This work is the first of a series of articles addressing the energy optimization in ice hockey halls. Here we outline an analytic method to predict in which design and operating conditions the COP of the entire cooling system (refrigerator and cooling tower) ${\\rm COP}_{sys}$ is maximum. ${\\rm COP}_{sys}$ is investigated as a function of several variables, like electric consumption and brine physical properties. With this method, the best configuration and brine choices for the system can therefore be determined in advance. We estimate the optimal design of an average-sized ice rink, including pipe diameter, depth and brine type (ethylene glycol and ammonia). We also single out an optimal brine density and show the impact of the electric consumption of the pump on ${\\rm COP}_{sys}$. Our theoretical predictions are validated with heat flow measurement data obtained at an ice hockey hall in Finland. They are also confronted with technical and cost-related constraints, and implemented by simulations with the pr...

  1. Predicting PVT data for CO2brine mixtures for black-oil simulation of CO2 geological storage

    E-Print Network [OSTI]

    Santos, Juan

    Predicting PVT data for CO2­brine mixtures for black-oil simulation of CO2 geological storage efficiency of the black-oil approach promote application of black-oil simulation for large-scale geological into geological formations has been considered as a potential method to mitigate climate change. Accurate

  2. Macro-and Microscale Waterflooding Performances of Crudes which form w/o Emulsions upon Mixing with Brines

    E-Print Network [OSTI]

    Firoozabadi, Abbas

    Macro- and Microscale Waterflooding Performances of Crudes which form w/o Emulsions upon Mixing with Brines N. Rezaei and A. Firoozabadi*,, Reservoir Engineering Research Institute, 595 Lytton Avenue, Palo ABSTRACT: We study the micro- and macroscale waterflooding performances of unusual crudes which naturally

  3. 2. INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 STUDY OF WATERFLOODING PROCESS IN NATURALLY FRACTURED

    E-Print Network [OSTI]

    Schechter, David S.

    , followed by waterflooding, were performed at reservoir conditions to investigate rock wettability. A two Berea and Spraberry cores at reservoir conditions to illustrate the actual process of waterflooding- 31 - 2. INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 STUDY OF WATERFLOODING PROCESS

  4. Unconventional gas sources. Executive summary. [Coal seams, Devonian shale, geopressured brines, tight gas reservoirs

    SciTech Connect (OSTI)

    Not Available

    1980-12-01T23:59:59.000Z

    The long lead time required for conversion from oil or gas to coal and for development of a synthetic fuel industry dictates that oil and gas must continue to supply the United States with the majority of its energy requirements over the near term. In the interim period, the nation must seek a resource that can be developed quickly, incrementally, and with as few environmental concerns as possible. One option which could potentially fit these requirements is to explore for, drill, and produce unconventional gas: Devonian Shale gas, coal seam gas, gas dissolved in geopressured brines, and gas from tight reservoirs. This report addresses the significance of these sources and the economic and technical conditions under which they could be developed.

  5. Unnatural landscapes in ecology: Generating the spatial distribution of brine spills

    SciTech Connect (OSTI)

    Jager, Yetta [ORNL; Efroymson, Rebecca Ann [ORNL; Sublette, K. [University of Tulsa; Ashwood, Tom L [ORNL

    2005-01-01T23:59:59.000Z

    Quantitative tools are needed to evaluate the ecological effects of increasing petroleum production. In this article, we describe two stochastic models for simulating the spatial distribution of brine spills on a landscape. One model uses general assumptions about the spatial arrangement of spills and their sizes; the second model distributes spills by siting rectangular well complexes and conditioning spill probabilities on the configuration of pipes. We present maps of landscapes with spills produced by the two methods and compare the ability of the models to reproduce a specified spill area. A strength of the models presented here is their ability to extrapolate from the existing landscape to simulate landscapes with a higher (or lower) density of oil wells.

  6. Brine-in-crude-oil emulsions at the Strategic Petroleum Reserve.

    SciTech Connect (OSTI)

    Nemer, Martin B.; Lord, David L.; MacDonald, Terry L.

    2013-10-01T23:59:59.000Z

    Metastable water-in-crude-oil emulsion formation could occur in a Strategic Petroleum Reserve (SPR) cavern if water were to flow into the crude-oil layer at a sufficient rate. Such a situation could arise during a drawdown from a cavern with a broken-hanging brine string. A high asphaltene content (> 1.5 wt %) of the crude oil provides the strongest predictor of whether a metastable water-in-crude-oil emulsion will form. However there are many crude oils with an asphaltene content > 1.5 wt % that don't form stable emulsions, but few with a low asphaltene content that do form stable emulsions. Most of the oils that form stable emulsions are %E2%80%9Csour%E2%80%9D by SPR standards indicating they contain total sulfur > 0.50 wt %.

  7. CO2-Brine Surface Dissolution and Injection: CO2 Storage Enhancement Paul Emeka Eke, SPE, Mark Naylor, Stuart Haszeldine and Andrew Curtis, Scottish Centre for Carbon Storage,

    E-Print Network [OSTI]

    ) is capable of reducing atmospheric emissions of greenhouse gases from coal or gas fired power plants or supercritical phase, as water-alternating gas cycles, or as carbonated brine. These result in different

  8. Effects of a sulfide system produced by a natural brine seep on sandy-bottom community structure at the East Flower Garden Bank, northwest Gulf of Mexico

    E-Print Network [OSTI]

    Woods, Edward Andrew

    1982-01-01T23:59:59.000Z

    30%. Videophotography and doppler-based rangefinder measurements were used to map the seep area. Current measurements of the brine stream were made using a Savonius rotor attached to the manipulator Analysis of data was carried out using...

  9. Benefits and costs of brine extraction for increasing injection efficiency in geologic CO2 sequestration

    SciTech Connect (OSTI)

    Davidson, Casie L.; Watson, David J.; Dooley, James J.; Dahowski, Robert T.

    2014-01-01T23:59:59.000Z

    Pressure increases attendant with CO2 injection into the subsurface drive many of the risk factors associated with commercial-scale CCS projects, impacting project costs and liabilities in a number of ways. The area of elevated pressure defines the area that must be characterized and monitored; pressure drives fluid flow out of the storage reservoir along higher-permeability pathways that might exist through the caprock into overlying aquifers or hydrocarbon reservoirs; and pressure drives geomechanical changes that could potentially impact subsurface infrastructure or the integrity of the storage system itself. Pressure also limits injectivity, which can increase capital costs associated with installing additional wells to meet a given target injection rate. The ability to mitigate pressure increases in storage reservoirs could have significant value to a CCS project, but these benefits are offset by the costs of the pressure mitigation technique itself. Of particular interest for CO2 storage operators is the lifetime cost of implementing brine extraction at a CCS project site, and the relative value of benefits derived from the extraction process. This is expected to vary from site to site and from one implementation scenario to the next. Indeed, quantifying benefits against costs could allow operators to optimize their return on project investment by calculating the most effective scenario for pressure mitigation. This work builds on research recently submitted for publication by the authors examining the costs and benefits of brine extraction across operational scenarios to evaluate the effects of fluid extraction on injection rate to assess the cost effectiveness of several options for reducing the number of injection wells required. Modeling suggests that extracting at 90% of the volumetric equivalent of injection rate resulted in a 1.8% improvement in rate over a non-extraction base case; a four-fold increase in extraction rate results in a 7.6% increase in injection rate over the no-extraction base case. However, the practical impacts on capital costs suggest that this strategy is fiscally ineffective when evaluated solely on this metric, with extraction reducing injection well needs by only one per 56 (1x case) or one per 13 (4x case).

  10. Determination of imidazoline and amido-amine type corrosion inhibitors in both crude oil and produced brine from oilfield production

    SciTech Connect (OSTI)

    Matherly, R.M.; Jiao, J. [Baker Performance Chemicals, Houston, TX (United States); Blumer, D.J. [ARCO Alaska Inc., Anchorage, AK (United States); Ryman, J.S. [Baker Performance Chemicals, Anchorage, AK (United States)

    1995-12-01T23:59:59.000Z

    The classical method for the determination of corrosion inhibitors in oilfield brines is the dye transfer method. Within this method are many variations which the analyst may use to determine the amount of corrosion inhibitor in either water or crude oil. These methods, however, suffer from many interferences which result in both false positive and negatives for corrosion inhibitor content. These methods essentially detect all amines as corrosion inhibitors. Improved high pressure liquid chromatography (HPLC) methods have been developed for the analysis of quaternary salt type corrosion inhibitors in brine waters, however, these methods do not appear to work in crude oil or for other forms of corrosion inhibitors such as the imidazolines, and amido-amines. This paper presents a method for the quantitative analysis of the imidazoline and amido-amine type corrosion inhibitors in both oilfield water and crude oil samples by HPLC. The corrosion inhibitor of interest is first separated from the matrix on a small column, then derivatized to form a product which is both sensitive and selective on a fluorescence detector. Detection limits for imidazolines are around 0.2 mg/L, amides and amines are similar. The advantage of this procedure is it can be used to determine the amount of corrosion inhibitor in both oil and brine water phases as well as on solid surfaces.

  11. Problems #3, Math 204, Dr. M. Bohner. Sep 10, 2003. Due Sep 15, 11 am. 12. A tank has ten gallons of water in which two pounds of salt has been dissolved. Brine with

    E-Print Network [OSTI]

    Bohner, Martin

    of water in which two pounds of salt has been dissolved. Brine with 1.5 pound of salt per gallon enters

  12. Recovery of Fresh Water Resources from Desalination of Brine Produced During Oil and Gas Production Operations

    SciTech Connect (OSTI)

    David B. Burnett; Mustafa Siddiqui

    2006-12-29T23:59:59.000Z

    Management and disposal of produced water is one of the most important problems associated with oil and gas (O&G) production. O&G production operations generate large volumes of brine water along with the petroleum resource. Currently, produced water is treated as a waste and is not available for any beneficial purposes for the communities where oil and gas is produced. Produced water contains different contaminants that must be removed before it can be used for any beneficial surface applications. Arid areas like west Texas produce large amount of oil, but, at the same time, have a shortage of potable water. A multidisciplinary team headed by researchers from Texas A&M University has spent more than six years is developing advanced membrane filtration processes for treating oil field produced brines The government-industry cooperative joint venture has been managed by the Global Petroleum Research Institute (GPRI). The goal of the project has been to demonstrate that treatment of oil field waste water for re-use will reduce water handling costs by 50% or greater. Our work has included (1) integrating advanced materials into existing prototype units and (2) operating short and long-term field testing with full size process trains. Testing at A&M has allowed us to upgrade our existing units with improved pre-treatment oil removal techniques and new oil tolerant RO membranes. We have also been able to perform extended testing in 'field laboratories' to gather much needed extended run time data on filter salt rejection efficiency and plugging characteristics of the process train. The Program Report describes work to evaluate the technical and economical feasibility of treating produced water with a combination of different separation processes to obtain water of agricultural water quality standards. Experiments were done for the pretreatment of produced water using a new liquid-liquid centrifuge, organoclay and microfiltration and ultrafiltration membranes for the removal of hydrocarbons from produced water. The results of these experiments show that hydrocarbons from produced water can be reduced from 200 ppm to below 29 ppm level. Experiments were also done to remove the dissolved solids (salts) from the pretreated produced water using desalination membranes. Produced water with up to 45,000 ppm total dissolved solids (TDS) can be treated to agricultural water quality water standards having less than 500 ppm TDS. The Report also discusses the results of field testing of various process trains to measure performance of the desalination process. Economic analysis based on field testing, including capital and operational costs, was done to predict the water treatment costs. Cost of treating produced water containing 15,000 ppm total dissolved solids and 200 ppm hydrocarbons to obtain agricultural water quality with less than 200 ppm TDS and 2 ppm hydrocarbons range between $0.5-1.5 /bbl. The contribution of fresh water resource from produced water will contribute enormously to the sustainable development of the communities where oil and gas is produced and fresh water is a scarce resource. This water can be used for many beneficial purposes such as agriculture, horticulture, rangeland and ecological restorations, and other environmental and industrial application.

  13. Effect of debonded interfaces on corrosion of mild steel composites in supercritical CO2-saturated brines

    SciTech Connect (OSTI)

    John, Han [Los Alamos National Laboratory; Carey, James W [Los Alamos National Laboratory; Zhang, Jinsuo [Los Alamos National Laboratory

    2010-10-07T23:59:59.000Z

    The geologic sequestration of CO{sub 2} is a proposed method to limit greenhouse gas emissions and has been the subject of many studies in the last decade. Wellbore systems achieve isolation of the storage reservoir through a combination of steel (generally carbon steel) and Portland cement. CO{sub 2} leakage along the steel-cement interface has the potential to accelerate corrosion. We conduct experiments to assess the corrosion risk at cement-steel interface under in situ wellbore conditions. Wellbore interfaces were simulated by assemblies constructed of J55 mild steel and Portland class G (Epoxy was used in this study to separate) cement and corrosion was investigated in supercritical CO{sub 2} saturated brines, (NaCl = 1 wt%) at T = 50 C, pCO{sub 2} = 1200 psi with interface gap size = 100 {micro}m and {infinity} (open surface). The experiments were carried out in a high-pressure, 1.8 L autoclave. The corrosion kinetics were measured employing electrochemical techniques including linear polarization resistance and electrochemical impedance spectroscopy techniques. The corrosion scales were analyzed using secondary electron microscopy, back scattering electron microscopy, energy dispersive spectroscopy and x-ray diffraction. Corrosion rates decreased as time with or without interface gap. In this case corrosion rates are controlled by scale protectivity through the interface gap. Scaled steel corrosion rates were two orders of magnitude less compared with fresh steel. The corrosion scale is pseudo crystalline at the open interface. Well-crystallized scale was observed at interface gap sizes 100 {micro}m. All corrosion scales were composed of iron carbonates.

  14. West Hackberry Strategic Petroleum Reserve site brine-disposal monitoring, Year I report. Volume II. Physical and chemical oceanography. Final report

    SciTech Connect (OSTI)

    DeRouen, L.R.; Hann, R.W.; Casserly, D.M.; Giammona, C.; Lascara, V.J. (eds.)

    1983-02-01T23:59:59.000Z

    This project centers around the Strategic Petroleum Site (SPR) known as the West Hackberry salt dome which is located in southwestern Louisiana, and which is designed to store 241 million barrels of crude oil. Oil storage caverns are formed by injecting water into salt deposits, and pumping out the resulting brine. Studies described in this report were designed as follow-on studies to three months of pre-discharge characterization work, and include data collected during the first year of brine leaching operations. The objectives were to: (1) characterize the environment in terms of physical, chemical and biological attributes; (2) determine if significant adverse changes in ecosystem productivity and stability of the biological community are occurring as a result of brine discharge; and (3) determine the magnitude of any change observed. Contents of Volume II include: introduction; physical oceanography; estuarine hydrology and hydrography; analysis of discharge plume; and water and sediment quality.

  15. Direct releases to the surface and associated complementary cumulative distribution functions in the 1996 performance assessments for the Waste Isolation Pilot Plant: Direct brine release

    SciTech Connect (OSTI)

    STOELZEL,D.M.; O'BRIEN,D.G.; GARNER,J.W.; HELTON,JON CRAIG; JOHNSON,J.D.; SCOTT,L.N.

    2000-05-19T23:59:59.000Z

    The following topics related to the treatment of direct brine releases to the surface environment in the 1996 performance assessment for the Waste Isolation Pilot Plant (WIPP) are presented (1) mathematical description of models, (2) uncertainty and sensitivity analysis results arising from subjective (i.e., epistemic) uncertainty for individual releases, (3) construction of complementary cumulative distribution functions (CCDFs) arising from stochastic (i.e., aleatory) uncertainty, and (4) uncertainty and sensitivity analysis results for CCDFs. The presented analyses indicate that direct brine releases do not constitute a serious threat to the effectiveness of the WIPP as a disposal facility for transuranic waste. Even when the effects of uncertain analysis inputs are taken into account, the CCDFs for direct brine releases fall substantially to the left of the boundary line specified in the US Environmental Protection Agency's standard for the geologic disposal of radioactive waste (4O CFR 191.40 CFR 194).

  16. Modifications of Carbonate Fracture Hydrodynamic Properties by CO{sub 2}-Acidified Brine Flow

    SciTech Connect (OSTI)

    Deng, Hang; Ellis, Brian R.; Peters, Catherine A.; Fitts, Jeffrey P.; Crandall, Dustin; Bromhal, Grant S.

    2013-08-01T23:59:59.000Z

    Acidic reactive flow in fractures is relevant in subsurface activities such as CO{sub 2} geological storage and hydraulic fracturing. Understanding reaction-induced changes in fracture hydrodynamic properties is essential for predicting subsurface flows such as leakage, injectability, and fluid production. In this study, x-ray computed tomography scans of a fractured carbonate caprock were used to create three dimensional reconstructions of the fracture before and after reaction with CO{sub 2}-acidified brine (Ellis et al., 2011, Greenhouse Gases: Sci. Technol., 1:248-260). As expected, mechanical apertures were found to increase substantially, doubling and even tripling in some places. However, the surface geometry evolved in complex ways including ‘comb-tooth’ structures created from preferential dissolution of calcite in transverse sedimentary bands, and the creation of degraded zones, i.e. porous calcite-depleted areas on reacted fracture surfaces. These geometric alterations resulted in increased fracture roughness, as measured by surface Z{sub 2} parameters and fractal dimensions D{sub f}. Computational fluid dynamics (CFD) simulations were conducted to quantify the changes in hydraulic aperture, fracture transmissivity and permeability. The results show that the effective hydraulic apertures are smaller than the mechanical apertures, and the changes in hydraulic apertures are nonlinear. Overestimation of flow rate by a factor of two or more would be introduced if fracture hydrodynamic properties were based on mechanical apertures, or if hydraulic aperture is assumed to change proportionally with mechanical aperture. The differences can be attributed, in part, to the increase in roughness after reaction, and is likely affected by contiguous transverse sedimentary features. Hydraulic apertures estimated by the 1D statistical model and 2D local cubic law (LCL) model are consistently larger than those calculated from the CFD simulations. In addition, a novel ternary segmentation method was devised to handle the degraded zones, allowing for a bounding analysis of the effects on hydraulic properties. We found that the degraded zones account for less than 15% of the fracture volume, but cover 70% to 80% of the fracture surface. When the degraded zones are treated as part of the fracture, the fracture transmissivities are two to four times larger because the fracture surfaces after reaction are not as rough as they would be if one considers the degraded zone as part of the rock. Therefore, while degraded zones created during geochemical reactions may not significantly increase mechanical aperture, this type of feature cannot be ignored and should be treated with prudence when predicting fracture hydrodynamic properties.

  17. Calcite dissolution kinetics and solubility in Na-Ca-Mg-Cl brines of geologically relevant composition at 0.1 to 1 bar pCO2 and 25 to 80°C 

    E-Print Network [OSTI]

    Gledhill, Dwight Kuehl

    2006-08-16T23:59:59.000Z

    injection of CO2. This study measured calcite solubility and dissolution rates in geologically relevant Na-Ca-Mg-Cl synthetic brines (35 to 200 g L-1 TDS). In brines < 50 g L-1 TDS, the EQPITZER calculated calcium carbonate ion activity product (IAP...

  18. EVALUATIONS OF RADIONUCLIDES OF URANIUM, THORIUM, AND RADIUM ASSOCIATED WITH PRODUCED FLUIDS, PRECIPITATES, AND SLUDGES FROM OIL, GAS, AND OILFIELD BRINE INJECTION WELLS IN MISSISSIPPI

    SciTech Connect (OSTI)

    Charles Swann; John Matthews; Rick Ericksen; Joel Kuszmaul

    2004-03-01T23:59:59.000Z

    Naturally occurring radioactive materials (NORM) are known to be produced as a byproduct of hydrocarbon production in Mississippi. The presence of NORM has resulted in financial losses to the industry and continues to be a liability as the NORM-enriched scales and scale encrusted equipment is typically stored rather than disposed of. Although the NORM problem is well known, there is little publically available data characterizing the hazard. This investigation has produced base line data to fill this informational gap. A total of 329 NORM-related samples were collected with 275 of these samples consisting of brine samples. The samples were derived from 37 oil and gas reservoirs from all major producing areas of the state. The analyses of these data indicate that two isotopes of radium ({sup 226}Ra and {sup 228}Ra) are the ultimate source of the radiation. The radium contained in these co-produced brines is low and so the radiation hazard posed by the brines is also low. Existing regulations dictate the manner in which these salt-enriched brines may be disposed of and proper implementation of the rules will also protect the environment from the brine radiation hazard. Geostatistical analyses of the brine components suggest relationships between the concentrations of {sup 226}Ra and {sup 228}Ra, between the Cl concentration and {sup 226}Ra content, and relationships exist between total dissolved solids, BaSO{sub 4} saturation and concentration of the Cl ion. Principal component analysis points to geological controls on brine chemistry, but the nature of the geologic controls could not be determined. The NORM-enriched barite (BaSO{sub 4}) scales are significantly more radioactive than the brines. Leaching studies suggest that the barite scales, which were thought to be nearly insoluble in the natural environment, can be acted on by soil microorganisms and the enclosed radium can become bioavailable. This result suggests that the landspreading means of scale disposal should be reviewed. This investigation also suggests 23 specific components of best practice which are designed to provide a guide to safe handling of NORM in the hydrocarbon industry. The components of best practice include both worker safety and suggestions to maintain waste isolation from the environment.

  19. Wetting behavior of selected crude oil/brine/rock systems. Topical report, March 1, 1995--March 31, 1996

    SciTech Connect (OSTI)

    Zhou, X.; Morrow, N.R.; Ma, S.

    1996-12-31T23:59:59.000Z

    Previous studies of crude oil/brine/rock (COBR) and related ensembles showed that wettability and its effect on oil recovery depend on numerous complex interactions. In the present work, the wettability of COBR ensembles prepared using Prudhoe Bay crude oil, a synthetic formation brine, and Berea Sandstone was varied by systematic change in initial water saturation and length of aging time at reservoir temperature (88 C). All displacement tests were run at ambient temperature. Various degrees of water wetness were achieved and quantified by a modified Amott wettability index to water, the relative pseudo work of imbibition, and a newly defined apparent advancing dynamic contact angle. Pairs of spontaneous imbibition (oil recovery by spontaneous imbibition of water) and waterflood (oil recovery vs. pore volumes of water injected) curves were measured for each of the induced wetting states. Several trends were observed. Imbibition rate, and hence water wetness, decreased with increase in aging time and with decrease in initial water saturation. Breakthrough recoveries and final oil recovery by waterflooding increased with decrease in water wetness. Correlations between water wetness and oil recovery by waterflooding and spontaneous imbibition are presented.

  20. Environmental assessment of the brine pipeline replacement for the Strategic Petroleum Reserve Bryan Mound Facility in Brazoria County, Texas

    SciTech Connect (OSTI)

    Not Available

    1993-09-01T23:59:59.000Z

    The Department of Energy (DOE) has prepared an environmental assessment (EA), DOE/EA-0804, for the proposed replacement of a deteriorated brine disposal pipeline from the Strategic Petroleum Reserve (SPR) Bryan Mound storage facility in Brazoria County, Texas, into the Gulf of Mexico. In addition, the ocean discharge outfall would be moved shoreward by locating the brine diffuser at the end of the pipeline 3.5 miles offshore at a minimum depth of 30 feet. The action would occur in a floodplain and wetlands; therefore, a floodplain/wetlands assessment has been prepared in conjunction with this EA. Based on the analyses in the EA, DOE has determined that the proposed action is not a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act (NEPA) of 1969 (42 USC. 4321, et seg.). Therefore, the preparation of an Environmental Impact Statement (EIS) is not required, and the Department is issuing this Finding of No Significant Impact (FONSI). This FONSI also includes a Floodplain Statement of Findings in accordance with 10 CFR Part 1022.

  1. Space of Spaces

    E-Print Network [OSTI]

    Edward Anderson

    2014-11-30T23:59:59.000Z

    Wheeler emphasized the study of Superspace - the space of 3-geometries on a spatial manifold of fixed topology. This is a configuration space for GR; knowledge of configuration spaces is useful as regards dynamics and QM.In this Article I consider furthmore generalized configuration spaces to all levels within the conventional `equipped sets' paradigm of mathematical structure used in fundamental Theoretical Physics. This covers A) the more familiar issue of topology change in the sense of topological manifolds (tied to cobordisms), including via pinched manifolds. B) The less familiar issue of not regarding as fixed the yet deeper levels of structure: topological spaces themselves (and their metric space subcase), collections of subsets and sets. Isham has previously presented quantization schemes for a number of these. I consider some classical preliminaries for this program, aside from the most obvious (classical dynamics for each). Rather, I provide I) to all levels Relational and Background Independence criteria, which have Problem of Time facets as consequences. I demonstrate that many of these issues descend all the way down, whilst also documenting at which level the others cease to apply. II) Probability theory on configuration spaces. In fact such a stochastic treatment is how to further mathematize the hitherto fairly formal and sketchy subject of records theory (a type of formultion of quantum gravity). Along these lines I provide a number of further examples of records theories. This is in addition to Kendall's shape statistics being the example corresponding to relational mechanics models. To this example I now add 1) Cech cohomology, 2) Kendall's random sets, 3) the lattice of topologies on a fixed set. I finally consider 4) sheaves, both as a generalization of Cech cohomology and in connection to the study of stratified manifolds such as Superspace itself.

  2. Semi-analytical model of brine and CO2 leakage through an abandoned plugged well. Applications for determining an Area of Review and CO2 leakage rate

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Semi-analytical model of brine and CO2 leakage through an abandoned plugged well. Applications for determining an Area of Review and CO2 leakage rate Arnaud Réveillère, Jérémy Rohmer, Frédéric Wertz / contact the leak, and of CO2,g as a first approach. Compared to the state of the art, it adds the possibility

  3. New constraints on methane fluxes and rates of anaerobic methane oxidation in a Gulf of Mexico brine pool via in situ mass spectrometry

    E-Print Network [OSTI]

    Girguis, Peter R.

    , likely exceeding reserves of conventional oil and gas (Collett and Kuuskraa, 1998). In deep-ocean regionsNew constraints on methane fluxes and rates of anaerobic methane oxidation in a Gulf of Mexico Keywords: Methane flux Mass spectrometer Brine pool Methane oxidation Gulf of Mexico a b s t r a c t Deep

  4. (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only commercially active lithium mine in the United States was a brine

    E-Print Network [OSTI]

    94 LITHIUM (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only commercially active lithium mine in the United States was a brine operation in Nevada. The mine's production capacity was expanded in 2012, and a new lithium hydroxide plant opened in North

  5. Reactive transport modeling to study changes in water chemistry induced by CO2 injection at the Frio-I brine pilot

    SciTech Connect (OSTI)

    Kharaka, Y.K; Doughty, C.; Freifeld, B.M.; Daley, T.M.; Xu, T.

    2009-11-01T23:59:59.000Z

    To demonstrate the potential for geologic storage of CO{sub 2} in saline aquifers, the Frio-I Brine Pilot was conducted, during which 1600 tons of CO{sub 2} were injected into a high-permeability sandstone and the resulting subsurface plume of CO{sub 2} was monitored using a variety of hydrogeological, geophysical, and geochemical techniques. Fluid samples were obtained before CO{sub 2} injection for baseline geochemical characterization, during the CO{sub 2} injection to track its breakthrough at a nearby observation well, and after injection to investigate changes in fluid composition and potential leakage into an overlying zone. Following CO{sub 2} breakthrough at the observation well, brine samples showed sharp drops in pH, pronounced increases in HCO{sub 3}{sup -} and aqueous Fe, and significant shifts in the isotopic compositions of H{sub 2}O and dissolved inorganic carbon. Based on a calibrated 1-D radial flow model, reactive transport modeling was performed for the Frio-I Brine Pilot. A simple kinetic model of Fe release from the solid to aqueous phase was developed, which can reproduce the observed increases in aqueous Fe concentration. Brine samples collected after half a year had lower Fe concentrations due to carbonate precipitation, and this trend can be also captured by our modeling. The paper provides a method for estimating potential mobile Fe inventory, and its bounding concentration in the storage formation from limited observation data. Long-term simulations show that the CO{sub 2} plume gradually spreads outward due to capillary forces, and the gas saturation gradually decreases due to its dissolution and precipitation of carbonates. The gas phase is predicted to disappear after 500 years. Elevated aqueous CO{sub 2} concentrations remain for a longer time, but eventually decrease due to carbonate precipitation. For the Frio-I Brine Pilot, all injected CO{sub 2} could ultimately be sequestered as carbonate minerals.

  6. Charge Mobility in Ice Brines and Ice-Silicate Mixtures Robert E. Grimm

    E-Print Network [OSTI]

    Grimm, Robert E.

    of Chemistry and Geochemistry Colorado School of Mines Golden, CO Mark A. Bullock Department of Space Studies in shallow thin films of water imposed by locally available nutrients and/or aqueous advection or diffusion environments on Earth. Furthermore, most microbes are forced into long periods of maintenance or survival modes

  7. Effect of Oxygen Co-Injected with Carbon Dioxide on Gothic Shale Caprock-CO2-Brine Interaction during Geologic Carbon Sequestration

    SciTech Connect (OSTI)

    Jung, Hun Bok; Um, Wooyong; Cantrell, Kirk J.

    2013-09-16T23:59:59.000Z

    Co-injection of oxygen, a significant component in CO2 streams produced by the oxyfuel combustion process, can cause a significant alteration of the redox state in deep geologic formations during geologic carbon sequestration. The potential impact of co-injected oxygen on the interaction between synthetic CO2-brine (0.1 M NaCl) and shale caprock (Gothic shale from the Aneth Unit in Utah) and mobilization of trace metals was investigated at ~10 MPa and ~75 °C. A range of relative volume percentages of O2 to CO2 (0, 1, 4 and 8%) were used in these experiments to address the effect of oxygen on shale-CO2-brine interaction under various conditions. Major mineral phases in Gothic shale are quartz, calcite, dolomite, montmorillonite, and pyrite. During Gothic shale-CO2-brine interaction in the presence of oxygen, pyrite oxidation occurred extensively and caused enhanced dissolution of calcite and dolomite. Pyrite oxidation and calcite dissolution subsequently resulted in the precipitation of Fe(III) oxides and gypsum (CaSO4•2H2O). In the presence of oxygen, dissolved Mn and Ni were elevated because of oxidative dissolution of pyrite. The mobility of dissolved Ba was controlled by barite (BaSO4) precipitation in the presence of oxygen. Dissolved U in the experimental brines increased to ~8–14 ?g/L, with concentrations being slightly higher in the absence of oxygen than in the presence of oxygen. Experimental and modeling results indicate the interaction between shale caprock and oxygen co-injected with CO2 during geologic carbon sequestration can exert significant impacts on brine pH, solubility of carbonate minerals, stability of sulfide minerals, and mobility of trace metals. The major impact of oxygen is most likely to occur in the zone near CO2 injection wells where impurity gases can accumulate. Oxygen in CO2-brine migrating away from the injection well will be continually consumed through the reactions with sulfide minerals in deep geologic formations.

  8. Pore space percolation in sea ice single crystals D. J. Pringle,1,2

    E-Print Network [OSTI]

    Golden, Kenneth M.

    from 2 to 12% and we found arrays of near-parallel intracrystalline brine layers whose connectivity threshold in the brine microstructure of sea ice. In previous works this critical behavior has been inferred at higher brine volumes by the formation of thin necks between the brine layers. We relate these results

  9. Using a multiphase flow code to model the coupled effects of repository consolidation and multiphase brine and gas flow at the Waste Isolation Pilot Plant

    SciTech Connect (OSTI)

    Freeze, G.A. [INTERA Inc., Albuquerque, NM (United States); Larson, K.W.; Davies, P.B.; Webb, S.W. [Sandia National Labs., Albuquerque, NM (United States)

    1995-10-01T23:59:59.000Z

    Long-term repository assessment must consider the processes of (1) gas generation, (2) room closure and expansions due to salt creep, and (3) multiphase (brine and gas) fluid flow, as well as the complex coupling between these three processes. The mechanical creep closure code SANCHO was used to simulate the closure of a single, perfectly sealed disposal room filled with water and backfill. SANCHO uses constitutive models to describe salt creep, waste consolidation, and backfill consolidation, Five different gas-generation rate histories were simulated, differentiated by a rate multiplier, f, which ranged from 0.0 (no gas generation) to 1.0 (expected gas generation under brine-dominated conditions). The results of the SANCHO f-series simulations provide a relationship between gas generation, room closure, and room pressure for a perfectly sealed room. Several methods for coupling this relationship with multiphase fluid flow into and out of a room were examined. Two of the methods are described.

  10. Evaluation of experimentally measured and model-calculated pH for rock-brine-CO2 systems under geologic CO2 sequestration conditions

    SciTech Connect (OSTI)

    Shao, Hongbo; Thompson, Christopher J.; Cantrell, Kirk J.

    2013-11-01T23:59:59.000Z

    pH is an essential parameter for understanding the geochemical reactions that occur in rock-brine-CO2 systems when CO2 is injected into deep geologic formations for long-term storage. Due to a lack of reliable experimental methods, most laboratory studies conducted under geological CO2 sequestration (GCS) conditions have relied on thermodynamic modeling to estimate pH. The accuracy of these model predictions is typically uncertain. In our previous work, we have developed a method for pH determination by in-situ spectrophotometry. In the present work, we expanded the applicable pH range for this method and measured the pH of several rock-brine-CO2 systems at GCS conditions for five rock samples collected from ongoing GCS demonstration projects. Experimental measurements were compared with pH values calculated using several geochemical modeling approaches. The effect of different thermodynamic databases on the accuracy of model prediction was evaluated. Results indicate that the accuracy of model calculations is rock-dependent. For rocks comprised of carbonate and sandstone, model results generally agreed well with experimentally measured pH; however, for basalt, significant differences were observed. These discrepancies may be due to the models’ failure to fully account for certain reaction occurring between the basalt minerals the CO2-saturated brine solutions.

  11. Reconstructing Interaction Potentials in Thin Films from Real-Space Images

    E-Print Network [OSTI]

    Gienger, Jonas; Rabe, Jürgen P; Sokolov, Igor M

    2015-01-01T23:59:59.000Z

    We demonstrate that an inverse Monte Carlo approach allows to reconstruct effective interaction potentials from real-space images. The method is exemplified on monomolecular ethanol-water films imaged with scanning force microscopy (SFM), which provides the spatial distribution of the molecules. Direct Monte Carlo simulations with the reconstructed potential allow for obtaining characteristics of the system which are unavailable in the experiment, such as the heat capacity of the monomolecularly thin film, and for a prediction of the critical temperature of the demixing transition.

  12. Constraining the reservoir model of an injected CO2 plume with crosswell CASSM at the Frio-II brine plot

    SciTech Connect (OSTI)

    Daley, T.M.; Ajo-Franklin, J.; Doughty, C.A.

    2011-02-15T23:59:59.000Z

    Crosswell CASSM (continuous active-source seismic monitoring) data was acquired as part of the Frio-II brine pilot CO{sub 2} injection experiment. To gain insight into the CO{sub 2} plume evolution, we have integrated the 3D multiphase flow modeling code TOUGH2 with seismic simulation codes via a petrophysical model that predicts seismic velocity for a given CO{sub 2} saturation. Results of forward seismic modeling based on the CO{sub 2} saturation distribution produced by an initial TOUGH2 model compare poorly with the CASSM data, indicating that the initial flow model did not capture the actual CO{sub 2} plume dynamics. Updates to the TOUGH2 model required to better match the CASSM field data indicate vertical flow near the injection well, with increased horizontal plume growth occurring at the top of the reservoir sand. The CASSM continuous delay time data are ideal for constraining the modeled spatiotemporal evolution of the CO{sub 2} plume and allow improvement in reservoir model and estimation of CO{sub 2} plume properties.

  13. Strontium isotope quantification of siderite, brine and acid mine drainage contributions to abandoned gas well discharges in the Appalachian Plateau

    SciTech Connect (OSTI)

    Chapman, Elizabeth C.; Capo, Rosemary C.; Stewart, Brian W.; Hedin, Robert S.; Weaver, Theodore J.; Edenborn, Harry M.

    2013-04-01T23:59:59.000Z

    Unplugged abandoned oil and gas wells in the Appalachian region can serve as conduits for the movement of waters impacted by fossil fuel extraction. Strontium isotope and geochemical analysis indicate that artesian discharges of water with high total dissolved solids (TDS) from a series of gas wells in western Pennsylvania result from the infiltration of acidic, low Fe (Fe < 10 mg/L) coal mine drainage (AMD) into shallow, siderite (iron carbonate)-cemented sandstone aquifers. The acidity from the AMD promotes dissolution of the carbonate, and metal- and sulfate-contaminated waters rise to the surface through compromised abandoned gas well casings. Strontium isotope mixing models suggest that neither upward migration of oil and gas brines from Devonian reservoirs associated with the wells nor dissolution of abundant nodular siderite present in the mine spoil through which recharge water percolates contribute significantly to the artesian gas well discharges. Natural Sr isotope composition can be a sensitive tool in the characterization of complex groundwater interactions and can be used to distinguish between inputs from deep and shallow contamination sources, as well as between groundwater and mineralogically similar but stratigraphically distinct rock units. This is of particular relevance to regions such as the Appalachian Basin, where a legacy of coal, oil and gas exploration is coupled with ongoing and future natural gas drilling into deep reservoirs.

  14. Space Kimchi

    E-Print Network [OSTI]

    Hacker, Randi; Oborny, Jaimie; Tsutsui, William

    2006-07-05T23:59:59.000Z

    Broadcast Transcript: In space, no one can hear you scream... but did you know that in space no one can detect your smell either? The smell-taste connection means that food in space is not only weightless but tasteless, too. What's a flavor...

  15. $?$--Rindler space

    E-Print Network [OSTI]

    J. Kowalski-Glikman

    2009-07-18T23:59:59.000Z

    In this paper we construct, and investigate some thermal properties of, the non-commutative counterpart of Rindler space, which we call $\\kappa$--Rindler space. This space is obtained by changing variables in the defining commutators of $\\kappa$--Minkowski space. We then re-derive the commutator structure of $\\kappa$--Rindler space with the help of an appropriate star product, obtained from the $\\kappa$--Minkowski one. Using this star product, following the idea of Padmanabhan, we find the leading order, $1/\\kappa$ correction to the Hawking thermal spectrum.

  16. Brine contamination of ground water and streams in the Baxterville Oil Field Area, Lamar and Marion Counties, Mississippi. Water resources investigation

    SciTech Connect (OSTI)

    Kalkhoff, S.J.

    1993-12-31T23:59:59.000Z

    The report defines the extent of oil-field-brine contamination in ground water and streams in the Baxterville oil field area. The report is based largely on data collected during the period October 1984 through November 1985. Water samples were collected from streams and wells in the study area. Data from a previous study conducted in the vicinity of the nearby Tatum Salt Dome were used for background water-quality information. Natural surface-water quality was determined by sampling streamflow from a nearby basin having no oil field activities and from samples collected in an adjacent basin during a previous study.

  17. Evaluations of Radionuclides of Uranium, Thorium, and Radium Associated with Produced Fluids, Precipitates, and Sludges from Oil, Gas, and Oilfield Brine Injection Wells in Mississippi

    SciTech Connect (OSTI)

    Ericksen, R.L.

    1999-10-28T23:59:59.000Z

    There is an unsurpassed lack of scientific data with respect to the concentrations and isotopic compositions of uranium, thorium, and radium in the produced formation fluids (brine), precipitates, and sludges generated with the operation of oil and gas wells in Mississippi. These radioactive elements when contained in the formation fluids have been given the term NORM, which is an acronym for naturally occurring radioactive materials. When they are technologically enhanced during oil and gas production activities resulting in the formation of scale (precipitates) and sludges they are termed TENORM (technologically enhanced naturally occurring radioactive materials). As used in this document, NORM and TENORM will be considered equivalent terms and the occurrence of NORM in the oilfield will be considered the result of production operations. As a result of the lack of data no scientifically sound theses may be developed concerning the presence of these radionuclides in the fluid brine, precipitate (scale), or sludge phases. Over the period of just one year, 1997 for example, Mississippi produced over 39,372,963,584 liters (10,402,368,186 gallons or 247,675,433 barrels) of formation water associated with hydrocarbon production from 41 counties across the state.

  18. Chemistry of fluid inclusions in halite from the Salina group of the Michigan basin: Implications for Late Silurian seawater and the origin of sedimentary brines

    SciTech Connect (OSTI)

    Das, N.; Horita, J.; Holland, H.D. (Harvard Univ., Cambridge, MA (USA))

    1990-02-01T23:59:59.000Z

    Fluid was extracted from 18 fluid inclusions in halite of the Late Silurian Salina Group exposed in the Crystal Mine on the outskirts of Detroit, Michigan. Compared with modern seawater evaporated to the same degree, the inclusion fluids are severely depleted in SO{sub 4}{sup {minus}2}, somewhat depleted in Na{sup +} and Mg{sup +2}, and greatly enriched in Ca{sup +2}. The composition of the inclusion fluids can be derived from Silurian seawater with a composition close to that of modern seawater, if it is assumed that the composition of the Silurian seawater was modified by dolomitizing CaCO{sub 3}-rich sediments and by albitizing silicate minerals during its evolution into evaporite brines. Since the evolution of the brines involved a number of chemical reactions, it is impossible to recover the initial concentration of all of the major ions in the parent Silurian seawater from the composition of the inclusion fluids alone. It is likely, however, that the m{sub K+}/m{sub Br-} ratio and the functions in Late Silurian seawater had values close to those of modern seawater. Measurements of the isotopic composition of sulfur and of Sr in anhydrite within and associated with the halite host of the fluid inclusions are consistent with previous measurements of {delta}{sup 34}S in Silurian marine anhydrites and with the {sup 87}Sr/{sup 86}Sr ratios of Late Silurian marine carbonates.

  19. The CPA Equation of State and an Activity Coefficient Model for Accurate Molar Enthalpy Calculations of Mixtures with Carbon Dioxide and Water/Brine

    E-Print Network [OSTI]

    P. C. Myint; Y. Hao; A. Firoozabadi

    2015-04-20T23:59:59.000Z

    Thermodynamic property calculations of mixtures containing carbon dioxide (CO$_2$) and water, including brines, are essential in theoretical models of many natural and industrial processes. The properties of greatest practical interest are density, solubility, and enthalpy. Many models for density and solubility calculations have been presented in the literature, but there exists only one study, by Spycher and Pruess, that has compared theoretical molar enthalpy predictions with experimental data. In this report, we recommend two different models for enthalpy calculations: the CPA equation of state by Li and Firoozabadi, and the CO$_2$ activity coefficient model by Duan and Sun. We show that the CPA equation of state, which has been demonstrated to provide good agreement with density and solubility data, also accurately calculates molar enthalpies of pure CO$_2$, pure water, and both CO$_2$-rich and aqueous (H$_2$O-rich) mixtures of the two species. It is applicable to a wider range of conditions than the Spycher and Pruess model. In aqueous sodium chloride (NaCl) mixtures, we show that Duan and Sun's model yields accurate results for the partial molar enthalpy of CO$_2$. It can be combined with another model for the brine enthalpy to calculate the molar enthalpy of H$_2$O-CO$_2$-NaCl mixtures. We conclude by explaining how the CPA equation of state may be modified to further improve agreement with experiments. This generalized CPA is the basis of our future work on this topic.

  20. Space Videos

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office of ScienceandMesa del Sol HomeFacebookScholarship Fund3Biology|Solar windMarch 26,SowjanyaSpaceSpace

  1. Reduced-Order Model for the Geochemical Impacts of Carbon Dioxide, Brine and Trace Metal Leakage into an Unconfined, Oxidizing Carbonate Aquifer, Version 2.1

    SciTech Connect (OSTI)

    Bacon, Diana H.

    2013-03-31T23:59:59.000Z

    The National Risk Assessment Partnership (NRAP) consists of 5 U.S DOE national laboratories collaborating to develop a framework for predicting the risks associated with carbon sequestration. The approach taken by NRAP is to divide the system into components, including injection target reservoirs, wellbores, natural pathways including faults and fractures, groundwater and the atmosphere. Next, develop a detailed, physics and chemistry-based model of each component. Using the results of the detailed models, develop efficient, simplified models, termed reduced order models (ROM) for each component. Finally, integrate the component ROMs into a system model that calculates risk profiles for the site. This report details the development of the Groundwater Geochemistry ROM for the Edwards Aquifer at PNNL. The Groundwater Geochemistry ROM for the Edwards Aquifer uses a Wellbore Leakage ROM developed at LANL as input. The detailed model, using the STOMP simulator, covers a 5x8 km area of the Edwards Aquifer near San Antonio, Texas. The model includes heterogeneous hydraulic properties, and equilibrium, kinetic and sorption reactions between groundwater, leaked CO2 gas, brine, and the aquifer carbonate and clay minerals. Latin Hypercube sampling was used to generate 1024 samples of input parameters. For each of these input samples, the STOMP simulator was used to predict the flux of CO2 to the atmosphere, and the volume, length and width of the aquifer where pH was less than the MCL standard, and TDS, arsenic, cadmium and lead exceeded MCL standards. In order to decouple the Wellbore Leakage ROM from the Groundwater Geochemistry ROM, the response surface was transformed to replace Wellbore Leakage ROM input parameters with instantaneous and cumulative CO2 and brine leakage rates. The most sensitive parameters proved to be the CO2 and brine leakage rates from the well, with equilibrium coefficients for calcite and dolomite, as well as the number of illite and kaolinite sorption sites proving to be of secondary importance. The Groundwater Geochemistry ROM was developed using nonlinear regression to fit the response surface with a quadratic polynomial. The goodness of fit was excellent for the CO2 flux to the atmosphere, and very good for predicting the volumes of groundwater exceeding the pH, TDS, As, Cd and Pb threshold values.

  2. An integrated experimental and numerical study: Developing a reaction transport model that couples chemical reactions of mineral dissolution/precipitation with spatial and temporal flow variations in CO2/brine/rock systems

    Broader source: Energy.gov [DOE]

    Project objectives: Generate and characterize mineral dissolution/precipitation reactions in supercritical CO2/brine/rock systems under pressure-temperature-chemistry conditions resembling CO2injection into EGS. Characterize three-dimensional spatial and temporal distributions of rock structures subject to mineral dissolution/precipitation processes by X-ray tomography, SEM imaging, and Microprobe analysis.

  3. (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only active lithium carbonate plant in the United States was a brine operation in

    E-Print Network [OSTI]

    94 LITHIUM (Data in metric tons of lithium content unless otherwise noted) Domestic Production and Use: The only active lithium carbonate plant in the United States was a brine operation in Nevada. Two companies produced a large array of downstream lithium compounds in the United States from domestic or South

  4. A Comparison of the Corrosion Resistance of Iron-Based Amorphous Metals and Austenitic Alloys in Synthetic Brines at Elevated Temperature

    SciTech Connect (OSTI)

    Farmer, J C

    2008-11-25T23:59:59.000Z

    Several hard, corrosion-resistant and neutron-absorbing iron-based amorphous alloys have now been developed that can be applied as thermal spray coatings. These new alloys include relatively high concentrations of Cr, Mo, and W for enhanced corrosion resistance, and substantial B to enable both glass formation and neutron absorption. The corrosion resistances of these novel alloys have been compared to that of several austenitic alloys in a broad range of synthetic brines, with and without nitrate inhibitor, at elevated temperature. Linear polarization and electrochemical impedance spectroscopy have been used for in situ measurement of corrosion rates for prolonged periods of time, while scanning electron microscopy (SEM) and energy dispersive analysis of X-rays (EDAX) have been used for ex situ characterization of samples at the end of tests. The application of these new coatings for the protection of spent nuclear fuel storage systems, equipment in nuclear service, steel-reinforced concrete will be discussed.

  5. The CPA Equation of State and an Activity Coefficient Model for Accurate Molar Enthalpy Calculations of Mixtures with Carbon Dioxide and Water/Brine

    E-Print Network [OSTI]

    Myint, P C; Firoozabadi, A

    2015-01-01T23:59:59.000Z

    Thermodynamic property calculations of mixtures containing carbon dioxide (CO$_2$) and water, including brines, are essential in theoretical models of many natural and industrial processes. The properties of greatest practical interest are density, solubility, and enthalpy. Many models for density and solubility calculations have been presented in the literature, but there exists only one study, by Spycher and Pruess, that has compared theoretical molar enthalpy predictions with experimental data. In this report, we recommend two different models for enthalpy calculations: the CPA equation of state by Li and Firoozabadi, and the CO$_2$ activity coefficient model by Duan and Sun. We show that the CPA equation of state, which has been demonstrated to provide good agreement with density and solubility data, also accurately calculates molar enthalpies of pure CO$_2$, pure water, and both CO$_2$-rich and aqueous (H$_2$O-rich) mixtures of the two species. It is applicable to a wider range of conditions than the Spy...

  6. Animated Space

    E-Print Network [OSTI]

    Amin, Ash

    2014-01-01T23:59:59.000Z

    , symbolic and affective association. The cultural and political pushes of markets, states, parliaments, bureaucracies, telephones, television, film, print and social media, religion, nation, and other spaces of attachment tend to be neglected... -corporeal, subject-centred? It is generally assumed that in urban areas with rudimentary technologies, poor infrastructures, and failing bureaucracies, humans do the heavy lifting: parsing without prosthetics and developing skills of improvisation, acuity...

  7. Space Sciences

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9MorganYouofSolvingexplore correlation613Space451

  8. Contestation of Space

    E-Print Network [OSTI]

    Alkhalili, Nura

    2012-01-01T23:59:59.000Z

    Volume 25, 2012 Contestation of Space A Photo Essay by Nuraoccurring in Ramallah between refugee and non-refugee space.Keywords: Divided spaces Introduction This study was

  9. Competing for Shelf Space.

    E-Print Network [OSTI]

    Martínez-de-Albéniz, V.; Roels, G.

    2007-01-01T23:59:59.000Z

    Retailers, and Shelf Space. ” Journal of Marketing, 26(3),Model for Optimizing Retail Space Allocations. ” ManagementMethods to Estimate Shelf Space Elasticities. ” Quant.

  10. 24/02/2012 12:49SPE Projects, Facilities & Construction -CO2/Brine Surface Dissolution and Injection: CO2 Storage Enhancement Page 1 of 1http://www.spe.org/ejournals/jsp/journalapp.jsp?pageType=Preview&jid=EFC&pdfChronicleId=090147628022501b&mid=SPE-12471

    E-Print Network [OSTI]

    Haszeldine, Stuart

    24/02/2012 12:49SPE Projects, Facilities & Construction - CO2/Brine Surface Dissolution of Petroleum Engineers SPE Projects, Facilities & Construction Volume 6, Number 1, March 2011, pp. 41-53 SPE

  11. Lyapunov functions nonlinear spaces

    E-Print Network [OSTI]

    Hafstein, Sigurður Freyr

    Lyapunov functions on nonlinear spaces R. Sepulchre -- University of Liege, Belgium Reykjavik - July 2013 Constructing Lyapunov functions: a personal journey · Lyap functions in linear spaces (1994: homogeneous spaces with flat, positive, and negative curvature) Lyapunov functions in linear spaces 3

  12. 3741SPACE AUDIT PROCEDURE Space audit

    E-Print Network [OSTI]

    Page 1 3741SPACE AUDIT PROCEDURE Space audit identified to be conducted Will audit disrupt or disturb occupants of the space Notify Faculty, School or Business Unit of the audit Is the audit for timetabling purposes Is the audit a physical audit Confirm audit requirements Is the audit for other space

  13. UNIVERSITY SPACE POLICY ALLOCATION OF UNIVERSITY SPACE

    E-Print Network [OSTI]

    UNIVERSITY COLLEGE DUBLIN UNIVERSITY SPACE POLICY #12;ALLOCATION OF UNIVERSITY SPACE I Purpose To provide a methodology for the allocation of space across the University II Background Due to the university's success in attracting research funding, the need for space and facilities has grown

  14. COMMERCIAL SPACE ACCOMPLISHMENTS Commercial Cargo Space Accomplishments

    E-Print Network [OSTI]

    Waliser, Duane E.

    11/13/2013 COMMERCIAL SPACE ACCOMPLISHMENTS Commercial Cargo Space Accomplishments The Obama Administration's ambitious commercial space program, which has bipartisan support in Congress, has enabled NASA's successful partnership with two American companies now able to resupply the station - SpaceX and Orbital

  15. West Hackberry Strategic Petroleum Reserve site brine disposal monitoring, Year I report. Volume V. Supporting data for estuarine hydrology, discharge plume analysis, chemical oceanography, biological oceanography, and data management. Final report

    SciTech Connect (OSTI)

    DeRouen, L.R.; Hann, R.W.; Casserly, D.M.; Giammona, C.; Lascara, V.J. (eds.)

    1983-02-01T23:59:59.000Z

    This project centers around the Strategic Petroleum Site (SPR) known as the West Hackberry salt dome which located in southwestern Louisiana, and which is designed to store 241 million barrels of crude oil. Oil storage caverns are formed by injecting water into salt deposits, and pumping out the resulting brine. Studies described in this report were designed as follow-on studies to three months of pre-discharge characterization work, and include data collected during the first year of brine leaching operations. The objectives were to: (1) characterize the environment in terms of physical, chemical and biological attributes; (2) determine if significant adverse changes in ecosystem productivity and stability of the biological community are occurring as a result of brine discharge; and (3) determine the magnitude of any change observed. Volume V contains appendices for the following: supporting data for estuarine hydrology and hydrography; supporting data analysis of discharge plume; supporting data for water and sediment chemistry; CTD/DO and pH profiles during biological monitoring; supporting data for nekton; and supporting data for data management.

  16. Use of data obtained from core tests in the design and operation of spent brine injection wells in geopressured or geothermal systems

    SciTech Connect (OSTI)

    Jorda, R.M.

    1980-03-01T23:59:59.000Z

    The effects of formation characteristics on injection well performance are reviewed. Use of data acquired from cores taken from injection horizons to predict injectivity is described. And methods for utilizing data from bench scale testing of brine and core samples to optimize injection well design are presented. Currently available methods and equipment provide data which enable the optimum design of injection wells through analysis of cores taken from injection zones. These methods also provide a means of identifying and correcting well injection problems. Methods described in this report are: bulk density measurement; porosity measurement; pore size distribution analysis; permeability measurement; formation grain size distribution analysis; core description (lithology) and composition; amount, type and distribution of clays and shales; connate water analysis; consolidatability of friable reservoir rocks; grain and pore characterization by scanning electron microscopy; grain and pore characterization by thin section analysis; permeability damage and enhancement tests; distribution of water-borne particles in porous media; and reservoir matrix acidizing effectiveness. The precise methods of obtaining this information are described, and their use in the engineering of injection wells is illustrated by examples, where applicable. (MHR)

  17. CRYSTALLOGRAPHIC POINT AND SPACE

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    CRYSTALLOGRAPHIC POINT AND SPACE GROUPS Andy Elvin June 10, 2013 #12;Contents Point and Space no reflection axes #12;Cube and Octahedron are dual Symmetries under Oh #12;Space Groups Subgroups of E(3) Point Group + Translation { R | 0 }{ E | t }a = { R | t }a = Ra + t 230 Space Groups 73 symmorphic space

  18. Definitions Numbered Space

    E-Print Network [OSTI]

    Behmer, Spencer T.

    Definitions · Numbered Space ­ a single space marked with a number and reserved for a single permit 24/7 · Unnumbered Space ­ a space which can be used by any customer allowed to park in that lot. High Low Average Question 4: If I buy a staff permit for an UNNUMBERED* space in a non-gated surface

  19. Space Solar Power Program

    SciTech Connect (OSTI)

    Arif, H.; Barbosa, H.; Bardet, C.; Baroud, M.; Behar, A.; Berrier, K.; Berthe, P.; Bertrand, R.; Bibyk, I.; Bisson, J.; Bloch, L.; Bobadilla, G.; Bourque, D.; Bush, L.; Carandang, R.; Chiku, T.; Crosby, N.; De Seixas, M.; De Vries, J.; Doll, S.; Dufour, F.; Eckart, P.; Fahey, M.; Fenot, F.; Foeckersperger, S.; Fontaine, J.E.; Fowler, R.; Frey, H.; Fujio, H.; Gasa, J.M.; Gleave, J.; Godoe, J.; Green, I.; Haeberli, R.; Hanada, T.; Ha

    1992-08-01T23:59:59.000Z

    Information pertaining to the Space Solar Power Program is presented on energy analysis; markets; overall development plan; organizational plan; environmental and safety issues; power systems; space transportation; space manufacturing, construction, operations; design examples; and finance.

  20. Quantum Complex Minkowski Space

    E-Print Network [OSTI]

    Grzegorz Jakimowicz; Anatol Odzijewicz

    2005-05-06T23:59:59.000Z

    The complex Minkowski phase space has the physical interpretation of the phase space of the scalar massive conformal particle. The aim of the paper is the construction and investigation of the quantum complex Minkowski space.

  1. {gamma}-Radiolysis of NaCl Brine in the Presence of UO{sub 2}(s): Effects of Hydrogen and Bromide

    SciTech Connect (OSTI)

    Metz, Volker; Bohnert, Elke; Kelm, Manfred; Schild, Dieter; Kienzler, Bernhard [Institute for Radioactive Waste Disposal (FZK-INE), Forschungszentrum Karlsruhe / Research Center Karlsruhe, Helmholtz-Platz, Eggenstein-Leopoldshafen, D-76344 (Germany); Reinhardt, Juergen; Buchmeiser, Michael R. [Leibniz-Institut fuer Oberflaechenmodifizierung, IOM, Permoserstr. 15, Leipzig, D-04318 (Germany)

    2007-07-01T23:59:59.000Z

    A concentrated NaCl solution was {gamma}-irradiated in autoclaves under a pressure of 25 MPa. A set of experiments were conducted in 6 mol (kg H{sub 2}O){sup -1} NaCl solution in the presence of UO{sub 2}(s) pellets; in a second set of experiments, {gamma}-radiolysis of the NaCl brine was studied without UO{sub 2}(s). Hydrogen, oxygen and chlorate were formed as long-lived radiolysis products. Due to the high external pressure, all radiolysis products remained dissolved. H{sub 2} and O{sub 2} reached steady state concentrations in the range of 5.10{sup -3} to 6.10{sup -2} mol (kg H{sub 2}O){sup -1} corresponding to a partial gas pressure of {approx}2 to {approx}20 MPa. Radiolytic formation of hydrogen and oxygen increased with the concentration of bromide added to solution. Both, in the presence of bromide, resulting in a relatively high radiolytic yield, and in the absence of bromide surfaces of the UO{sub 2}(s) samples were oxidized, and concentration of dissolved uranium reached the solubility limit of the schoepite / NaUO{sub 2}O(OH)(cr) transition. At the end of the experiments, the pellets were covered by a surface layer of a secondary solid phase having a composition close to Na{sub 2}U{sub 2}O{sub 7}. The experimental results demonstrate that bromide counteracts an H{sub 2} inhibition effect on radiolysis gas production, even at a concentration ratio of [H{sub 2}] / [Br{sup -}] > 100. The present observations are related to the competitive reactions of OH radicals with H{sub 2}, Br{sup -} and Cl{sup -}. A similar competition of hydrogen and bromide, controlling the yield of {gamma}-radiolysis products, is expected for solutions of lower Cl{sup -} concentration. (authors)

  2. In Outer Space without a Space Suit?

    E-Print Network [OSTI]

    Alexander Bolonkin

    2008-06-24T23:59:59.000Z

    The author proposes and investigates his old idea - a living human in space without the encumbrance of a complex space suit. Only in this condition can biological humanity seriously attempt to colonize space because all planets of Solar system (except the Earth) do not have suitable atmospheres. Aside from the issue of temperature, a suitable partial pressure of oxygen is lacking. In this case the main problem is how to satiate human blood with oxygen and delete carbonic acid gas (carbon dioxide). The proposed system would enable a person to function in outer space without a space suit and, for a long time, without food. That is useful also in the Earth for sustaining working men in an otherwise deadly atmosphere laden with lethal particulates (in case of nuclear, chemical or biological war), in underground confined spaces without fresh air, under water or a top high mountains above a height that can sustain respiration.

  3. Space System Architecture

    E-Print Network [OSTI]

    McManus, Dr. Hugh

    Final Report of SSPARC: the Space Systems, Policy, and Architecture Research Consortium (Thrust II and III)

  4. Space Shuttle Program Status

    E-Print Network [OSTI]

    Waliser, Duane E.

    1 Space Shuttle Program Status John Casper Associate Manager Space Shuttle Program September 13, 2010 NAC Space Operations Committee #12;2 Operations #12;3 Flown Manifest March 2009 ­ May 2010 #12, 2010 · 132nd Space Shuttle mission · 32nd Flight of Atlantis (120,650,907 statute miles) · 294 Total

  5. Space Complexity Algorithms & Complexity

    E-Print Network [OSTI]

    Way, Andy

    Space Complexity Algorithms & Complexity Space Complexity Nicolas Stroppa Patrik Lambert - plambert@computing.dcu.ie CA313@Dublin City University. 2008-2009. December 4, 2008 #12;Space Complexity Hierarchy of problems #12;Space Complexity NP-intermediate Languages If P = NP, then are there languages which neither in P

  6. Space Science and Applications

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

    the first measurements of Earth's space radiation environment and the discovery of gamma-ray bursts. The majority of ISR-1 staff hold PhDs in Space Physics, Nuclear Physics, or...

  7. Ordered involutive operator spaces

    E-Print Network [OSTI]

    Blecher, David P; Neal, Matthew; Werner, Wend

    2007-01-01T23:59:59.000Z

    This is a companion to recent papers of the authors; here we construct the `noncommutative Shilov boundary' of a (possibly nonunital) selfadjoint ordered space of Hilbert space operators. The morphisms in the universal property of the boundary preserve order. As an application, we consider `maximal' and `minimal' unitizations of such ordered operator spaces.

  8. SPACE RESOURCES ROUNDTABLE IX

    E-Print Network [OSTI]

    Rathbun, Julie A.

    SPACE RESOURCES ROUNDTABLE IX Colorado School of Mines October 25-27, 2007 http://www.ISRUinfo.com Sponsored by: Colorado School of Mines Lunar and Planetary Institute Space Resources Roundtable, Inc. First Space Michael B. Duke, Colorado School of Mines Leslie Gertsch, University of Missouri-Rolla Alex

  9. Conclusions Fractionated Space Systems

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Conclusions Fractionated Space Systems There is a growing interest in fractionated space system design. Fractionated space systems are inherently flexible and modular. There are many key technologies of flexibility serves as a source of motivation for system designers to embed flexibility into a system design (i

  10. TANK SPACE OPTIONS REPORT

    SciTech Connect (OSTI)

    WILLIS WL; AHRENDT MR

    2009-08-11T23:59:59.000Z

    Since this report was originally issued in 2001, several options proposed for increasing double-shell tank (DST) storage space were implemented or are in the process of implementation. Changes to the single-shell tank (SST) waste retrieval schedule, completion of DST space saving options, and the DST space saving options in progress have delayed the projected shortfall of DST storage space from the 2007-2011 to the 2018-2025 timeframe (ORP-11242, River Protection Project System Plan). This report reevaluates options from Rev. 0 and includes evaluations of new options for alleviating projected restrictions on SST waste retrieval beginning in 2018 because of the lack of DST storage space.

  11. Kant's hidden ontology of space

    E-Print Network [OSTI]

    Messina, James Anthony

    2011-01-01T23:59:59.000Z

    Verlag, Cassam, Quassim. “Space and Objective Experience,”John. World Enough and Space-Time (Cambridge, Massachusetts:On the Perception of Space [and Time],” in The Cambridge

  12. Please cite this article in press as: Birkholzer, J.T., et al., Brine flow up a well caused by pressure perturbation from geologic carbon sequestration: Static and dynamic evaluations. Int. J. Greenhouse Gas Control (2011), doi:10.1016/j.ijggc.2011.01.003

    E-Print Network [OSTI]

    Zhou, Quanlin

    2011-01-01T23:59:59.000Z

    by pressure perturbation from geologic carbon sequestration: Static and dynamic evaluations. Int. J.elsevier.com/locate/ijggc Brine flow up a well caused by pressure perturbation from geologic carbon sequestration: Static carbon sequestration (GCS) has drawn increasing con- sideration as a promising method to mitigate

  13. UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP

    E-Print Network [OSTI]

    UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP 18th September 2012 STFC 2012 #12;UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP 18th September 2012 STFC · Conclusion #12;UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP 18th September 2012 STFC

  14. Space Systems Finland 1 Deployment in the Space Sector

    E-Print Network [OSTI]

    Southampton, University of

    © Space Systems Finland 1 Deployment in the Space Sector #12;© Space Systems Finland 2 SW Constraints Design Requirements User Requirements SW Requirements #12;© Space Systems Finland 3 The space, but there is no viable alternative · Many requirements are not testable #12;© Space Systems Finland 4 SSF OBJECTIVES

  15. space for science, enterprise and environment Bringing Space Into School

    E-Print Network [OSTI]

    space for science, enterprise and environment Bringing Space Into School Science The National Space Education Initiative #12;space for science, enterprise and environment National Space Education Initiative the consultations · Recommendations of the report #12;space for science, enterprise and environment Background

  16. Quantum-Space Attacks

    E-Print Network [OSTI]

    Ran Gelles; Tal Mor

    2007-11-25T23:59:59.000Z

    Theoretical quantum key distribution (QKD) protocols commonly rely on the use of qubits (quantum bits). In reality, however, due to practical limitations, the legitimate users are forced to employ a larger quantum (Hilbert) space, say a quhexit (quantum six-dimensional) space, or even a much larger quantum Hilbert space. Various specific attacks exploit of these limitations. Although security can still be proved in some very special cases, a general framework that considers such realistic QKD protocols, as well as} attacks on such protocols, is still missing. We describe a general method of attacking realistic QKD protocols, which we call the `quantum-space attack'. The description is based on assessing the enlarged quantum space actually used by a protocol, the `quantum space of the protocol'. We demonstrate these new methods by classifying various (known) recent attacks against several QKD schemes, and by analyzing a novel attack on interferometry-based QKD.

  17. Matter: Space without Time

    E-Print Network [OSTI]

    Yousef Ghazi-Tabatabai

    2012-11-19T23:59:59.000Z

    While Quantum Gravity remains elusive and Quantum Field Theory retains the interpretational difficulties of Quantum Mechanics, we have introduced an alternate approach to the unification of particles, fields, space and time, suggesting that the concept of matter as space without time provides a framework which unifies matter with spacetime and in which we anticipate the development of complete theories (ideally a single unified theory) describing observed 'particles, charges, fields and forces' solely with the geometry of our matter-space-time universe.

  18. AB Space Engine

    E-Print Network [OSTI]

    Alexander Bolonkin

    2008-03-02T23:59:59.000Z

    On 4 January 2007 the author published the article Wireless Transfer of Electricity in Outer Space in http://arxiv.org wherein he offered and researched a new revolutionary method of transferring electric energy in space. In that same article, he offered a new engine which produces a large thrust without throwing away large amounts of reaction mass (unlike the conventional rocket engine). In the current article, the author develops the theory of this kind of impulse engine and computes a sample project which shows the big possibilities opened by this new AB-Space Engine. The AB-Space Engine gets the energy from ground-mounted power; a planet electric station can transfer electricity up to 1000 millions (and more) of kilometers by plasma wires. Author shows that AB-Space Engine can produce thrust of 10 tons (and more). That can accelerate a space ship to some thousands of kilometers/second. AB-Space Engine has a staggering specific impulse owing to the very small mass expended. The AB-Space Engine reacts not by expulsion of its own mass (unlike rocket engine) but against the mass of its planet of origin (located perhaps a thousand of millions of kilometers away) through the magnetic field of its plasma cable. For creating this plasma cable the AB-Space Engine spends only some kg of hydrogen.

  19. Newtonian Lorentz Metric Spaces

    E-Print Network [OSTI]

    Costea, Serban

    2011-01-01T23:59:59.000Z

    This paper studies Newtonian Sobolev-Lorentz spaces. We prove that these spaces are Banach. We also study the global p,q-capacity and the p,q-modulus of families of rectifiable curves. Under some additional assumptions (that is, the space carries a doubling measure and a weak Poincare inequality) and some restrictions on q, we show that the Lipschitz functions are dense in those spaces. Moreover, in the same setting we also show that the p,q-capacity is Choquet provided that q is strictly greater than 1. We provide a counterexample for the density result of Lipschitz functions in the Euclidean setting.

  20. Total Space Heat-

    Annual Energy Outlook 2013 [U.S. Energy Information Administration (EIA)]

    Commercial Buildings Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration...

  1. Multimegawatt space power reactors

    SciTech Connect (OSTI)

    Dearien, J.A.; Whitbeck, J.F.

    1989-01-01T23:59:59.000Z

    In response to the need of the Strategic Defense Initiative (SDI) and long range space exploration and extra-terrestrial basing by the National Air and Space Administration (NASA), concepts for nuclear power systems in the multi-megawatt levels are being designed and evaluated. The requirements for these power systems are being driven primarily by the need to minimize weight and maximize safety and reliability. This paper will discuss the present requirements for space based advanced power systems, technological issues associated with the development of these advanced nuclear power systems, and some of the concepts proposed for generating large amounts of power in space. 31 figs.

  2. Beyond Space-Time

    E-Print Network [OSTI]

    A. M. Polyakov

    2006-02-01T23:59:59.000Z

    These notes, based on the remarks made at the 23 Solvay Conference, collect several speculative ideas concerning gauge/ strings duality, de Sitter spaces, dimensionality and the cosmological constant.

  3. Sounds and Space 

    E-Print Network [OSTI]

    Nudds, Matthew

    the account I give (in section 1) of what sounds are and (in section 2) of the role of space in auditory perception....

  4. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Revised: December, 2008 Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other All Buildings...

  5. Passive solar space heating

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1980-01-01T23:59:59.000Z

    An overview of passive solar space heating is presented indicating trends in design, new developments, performance measures, analytical design aids, and monitored building results.

  6. National Aeronautics and Space Administration Space Shuttle

    E-Print Network [OSTI]

    in diameter and 60 feet long; large enough to fit a school bus or 50,000 pounds of payload. The shuttle major safety improvement to the space shuttle fleet includes the expanded use of enhanced imaging of the orbiter, the camera is similar to a standard 35mm model and snaps a series of photos as the tank separates

  7. SPACE TECHNOLOGY Actual Estimate

    E-Print Network [OSTI]

    SPACE TECHNOLOGY TECH-1 Actual Estimate Budget Authority (in $ millions) FY 2011 FY 2012 FY 2013 FY.7 247.0 Exploration Technology Development 144.6 189.9 202.0 215.5 215.7 214.5 216.5 Notional SPACE TECHNOLOGY OVERVIEW .............................. TECH- 2 SBIR AND STTR

  8. Atoms for space

    SciTech Connect (OSTI)

    Buden, D.

    1990-10-01T23:59:59.000Z

    Nuclear technology offers many advantages in an expanded solar system space exploration program. These cover a range of possible applications such as power for spacecraft, lunar and planetary surfaces, and electric propulsion; rocket propulsion for lunar and Mars vehicles; space radiation protection; water and sewage treatment; space mining; process heat; medical isotopes; and self-luminous systems. In addition, space offers opportunities to perform scientific research and develop systems that can solve problems here on Earth. These might include fusion and antimatter research, using the Moon as a source of helium-3 fusion fuel, and manufacturing perfect fusion targets. In addition, nuclear technologies can be used to reduce risk and costs of the Space Exploration Initiative. 1 fig.

  9. Space-QUEST: Experiments with quantum entanglement in space

    E-Print Network [OSTI]

    Rupert Ursin; Thomas Jennewein; Johannes Kofler; Josep M. Perdigues; Luigi Cacciapuoti; Clovis J. de Matos; Markus Aspelmeyer; Alejandra Valencia; Thomas Scheidl; Alessandro Fedrizzi; Antonio Acin; Cesare Barbieri; Giuseppe Bianco; Caslav Brukner; Jose Capmany; Sergio Cova; Dirk Giggenbach; Walter Leeb; Robert H. Hadfield; Raymond Laflamme; Norbert Lutkenhaus; Gerard Milburn; Momtchil Peev; Timothy Ralph; John Rarity; Renato Renner; Etienne Samain; Nikolaos Solomos; Wolfgang Tittel; Juan P. Torres; Morio Toyoshima; Arturo Ortigosa-Blanch; Valerio Pruneri; Paolo Villoresi; Ian Walmsley; Gregor Weihs; Harald Weinfurter; Marek Zukowski; Anton Zeilinger

    2008-06-05T23:59:59.000Z

    The European Space Agency (ESA) has supported a range of studies in the field of quantum physics and quantum information science in space for several years, and consequently we have submitted the mission proposal Space-QUEST (Quantum Entanglement for Space Experiments) to the European Life and Physical Sciences in Space Program. We propose to perform space-to-ground quantum communication tests from the International Space Station (ISS). We present the proposed experiments in space as well as the design of a space based quantum communication payload.

  10. Overview of Space Business Space & Integrated Defense Systems

    E-Print Network [OSTI]

    Overview of Space Business Space & Integrated Defense Systems Mitsubishi Corporation August 26 in Rio de Janeiro and Belo Horizonte #12;MC's Space Business Involved with aerospace business more than 40 years, covering civil/commercial space business, defense related space business and defense

  11. Spinorial space-time and privileged space direction (I)

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Spinorial space-time and privileged space direction (I) Luis Gonzalez-Mestres Abstract Contrary of a privileged space direction are not strange phenomena from the point of view of fundamental space-time geometry. As already emphasized in our previous papers on the subject, the spinorial space-time we

  12. Space Robotic Capabilities David Kortenkamp (NASA Johnson Space Center)

    E-Print Network [OSTI]

    Kortenkamp, David

    Johnson Space Center Space Robotic Capabilities David Kortenkamp (NASA Johnson Space Center) Liam) David Wettergreen (Carnegie Mellon University) Dan Clancy (NASA Ames) #12;Johnson Space Center 12/18/2001 Space Robotics State-of-Art 2 ! Motivation Science Objectives Mission Concepts Robots Human

  13. "Space Station" Theme: Learning to Work, and Live, in Space

    E-Print Network [OSTI]

    Mathis, Wayne N.

    "Space Station" IMAX Film Theme: Learning to Work, and Live, in Space The educational value of NASM visit and afterward. See the "Alignment with Standards" table for details regarding how "Space Station in the "Space Station" program: · How astronauts train · What it is like to live and work in Space aboard

  14. 3742SPACE ISSUES AND RESOLUTION PROCEDURE Space issue or

    E-Print Network [OSTI]

    Page 1 3742SPACE ISSUES AND RESOLUTION PROCEDURE Space issue or conflict identified Do any of the strategies mitigate issue/conflict Complete Conflict Resolution Form Submit form to Space Management Office Space Management Office conduct issue/conflict analysis Space Management Office document possible

  15. Quotients of Metric Spaces

    E-Print Network [OSTI]

    Herman, Robert A.

    1968-01-01T23:59:59.000Z

    . PRELIMINARIES 1 CHAPTER II . SFACBS IN WHICH SEQUENCES SUFFICE 6 CHAPTER III . QUOTIENTS OF SEPARABLE METRIC SPACES Ik CHAPTER IV. GENERAL QUOTIENT SPACES 25 CHAPTER V. CLOSED QUOTIENT MAPS 35 CHAPTER VI. OPEN QUOTIENT MAPS 50 CHAPTER VII. OPEN AND CLOSED... QUOTIENT MAPS 55 CHAPTER VIII. ANOTHER RESULT 6l BIBLIOGRAPHY 65 CHAPTER I. PRELIMINARIES We begin by stating some basic definitions and theorems. Definition 1 . 1 ; Let f be a function from a topological space X onto a set Y. Then the quotient...

  16. National Aeronautics and Space Administration Marshall Space Flight Center

    E-Print Network [OSTI]

    and Services marshall Propulsion Systems Space Transportation/ Launch Vehicles Space Systems Scientific. Advanced propulsion and power research and development including high-power electric propulsion, nuclear thermal propulsion, space nuclear power systems, nuclear surface power systems, and propellant

  17. Competing for Shelf Space.

    E-Print Network [OSTI]

    Martínez-de-Albéniz, V.; Roels, G.

    2007-01-01T23:59:59.000Z

    the changes in supplier i’s wholesale price and pro?t, i =space despite their lower wholesale prices. Using a di?erentImpact of Manufacturers’ Wholesale Prices a on a Retailer’s

  18. Envisioning creative space

    E-Print Network [OSTI]

    Özkâr, Mine, 1976-

    1999-01-01T23:59:59.000Z

    This thesis proposes a framework to articulate certain criteria in creative spatial productions such as architecture. I discuss that a conformist and unquestioning adaptation to conventional space conceptions limits ...

  19. astronautics & space technology

    E-Print Network [OSTI]

    Rohs, Remo

    and mecha- nisms, thermal control, power systems, launch systems and facilities. (Duplicates credit · flowcharts Astronautical engineers design, build and operate space vehicles used in exploration in areas such as electric propulsion, plasma physics, heliospheric structure, fundamental processes

  20. Reconstruction in Fourier space

    E-Print Network [OSTI]

    Burden, Angela; Howlett, Cullan

    2015-01-01T23:59:59.000Z

    We present a fast iterative FFT-based reconstruction algorithm that allows for non- parallel redshift-space distortions (RSD). We test our algorithm on both N-body dark matter simulations and mock distributions of galaxies designed to replicate galaxy survey conditions. We compare solenoidal and irrotational components of the redshift distortion and show that an approximation of this distortion leads to a better estimate of the real-space potential (and therefore faster convergence) than ignoring the RSD when estimating the displacement field. Our iterative reconstruction scheme converges in two iterations for the mock samples corresponding to BOSS CMASS DR11 when we start with an approximation of the RSD. The scheme takes six iterations when the initial estimate, measured from the redshift-space overdensity, has no RSD correction. Slower convergence would be expected for surveys covering a larger angle on the sky. We show that this FFT based method provides a better estimate of the real space displacement fi...

  1. Hyper Space Complex Number

    E-Print Network [OSTI]

    Shanguang Tan

    2007-04-23T23:59:59.000Z

    A new kind of numbers called Hyper Space Complex Numbers and its algebras are defined and proved. It is with good properties as the classic Complex Numbers, such as expressed in coordinates, triangular and exponent forms and following the associative and commutative laws of addition and multiplication. So the classic Complex Number is developed from in complex plane with two dimensions to in complex space with N dimensions and the number system is enlarged also.

  2. Space-time symmetries of noncommutative spaces

    SciTech Connect (OSTI)

    Calmet, Xavier [Department of Physics and Astronomy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 (United States)

    2005-04-15T23:59:59.000Z

    We define a noncommutative Lorentz symmetry for canonical noncommutative spaces. The noncommutative vector fields and the derivatives transform under a deformed Lorentz transformation. We show that the star product is invariant under noncommutative Lorentz transformations. We then apply our idea to the case of actions obtained by expanding the star product and the fields taken in the enveloping algebra via the Seiberg-Witten maps and verify that these actions are invariant under these new noncommutative Lorentz transformations. We finally consider general coordinate transformations and show that the metric is undeformed.

  3. Space Physics at UNH FROM THE DAWN OF SPACE EXPLORATION, UNH space scientists, engineers, and

    E-Print Network [OSTI]

    Pringle, James "Jamie"

    Space Physics at UNH FROM THE DAWN OF SPACE EXPLORATION, UNH space scientists, engineers, and students in the Institute for the Study of Earth, Oceans, and Space (EOS) have worked on mission design and modeling. The Space Science Center, housed at EOS, is engaged in research and graduate education in all

  4. China's Space Robotic Arms Programs

    E-Print Network [OSTI]

    POLLPETER, Kevin

    2013-01-01T23:59:59.000Z

    Blog, “Gen. Chilton on a Space Weapons Treaty,” October 30,archive/2076/general-chilton-on-a-space-weapons-treaty. 31on the military use of space, see Kevin Pollpeter, “China’s

  5. Space Instrument Realization (ISR-5)

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

    5 Space Instrument Realization Providing expertise to support the design and fabrication of space-based custom instrumentation Contacts Group Leader Amy Regan Email Staff...

  6. China's Space Robotic Arms Programs

    E-Print Network [OSTI]

    POLLPETER, Kevin

    2013-01-01T23:59:59.000Z

    2013 China’s Space Robotic Arm Programs Kevin POLLPETERdebris observation and space robotic arm technologies. Thelikely equipped with a robotic arm, grappling the target

  7. Quantization of empty space

    E-Print Network [OSTI]

    M. A. Zubkov

    2005-11-02T23:59:59.000Z

    We suggest to use "minimal" choice of quantum gravity theory, that is the quantum field theory, in which space-time is seen as Riemannian space and metric (or vierbein field) is the dynamical variable. We then suggest to use the simplest acceptable action, that is the squared curvature action. The correspondent model is renormalizable, has the correct classical limit without matter and can be explored using Euclidian path integral formalism. In order to get nonperturbative results one has to put this model on the lattice. While doing so serious problems with measure over dynamical variables are encountered, which were not solved until present. We suggest to solve them using the representation of Riemannian space as a limiting case of Riemann - Cartan space, where the Poincare group connection plays the role of dynamical variable. We construct manifestly gauge invariant discretization of Riemann - Cartan space. Lattice realization of Poincare gauge transformation naturally acts on the dynamical variables of the constructed discretization. There exists local measure invariant under this gauge transformation, which could be used as a basic element of lattice path integral methods. The correspondent lattice model appears to be useful for numerical simulations.

  8. From Noncommutative Phase Space to Hilbert Space

    SciTech Connect (OSTI)

    Muthukumar, B. [Saha Institute of Nuclear Physics, 1/AF, Bidhan nagar, Kolkata-700 064 (India)

    2007-10-03T23:59:59.000Z

    In the Hamiltonian formulation, classical mechanics employs the commutative algebra of functions that are defined on phase space a point of which could be represented using Dirac delta distributions. In the absence of such a concrete existence of the notion of point in the quantum domain, we show how the quantum mechanical formalism emerges by replacing the commutative algebra by a noncommutative algebra of functions and introducing the quantum condition. The noncommutativity is achieved by deforming the product of two functions and by introducing the Moyal brackets, the basic Moyal brackets between two spatial coordinates and between position and momentum coordinates being noncommutative. The only other input we make use of is the quantum condition which is motivated from its classical analogue--the square of Dirac delta distributions.

  9. 3740SPACE REPURPOSING PROCEDURE Client identifies

    E-Print Network [OSTI]

    Page 1 3740SPACE REPURPOSING PROCEDURE Client identifies space repurposing requirement Client completes space request form Submit space request form to Space Management Office Space Management Office acknowledge reciept Is space form completed accurately Space Management Office conduct space analysis Does

  10. Space Science and Applications

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9MorganYouofSolvingexplore correlation613Space451 Space

  11. Policies on Japan's Space Industry

    E-Print Network [OSTI]

    with space emerging countries 3. Step up leading-edge science and technology as an innovation engine (1Policies on Japan's Space Industry Shuichi Kaneko Director, Space Industry Office Manufacturing Industries Bureau Ministry of Economy, Trade and Industry (METI) #12;Japan's Space Policy is based

  12. The NASA Food Commercial Space

    E-Print Network [OSTI]

    Lin, Zhiqun

    The NASA Food Technology Commercial Space Center and How Your Company Can Participate space Commercial Space Center Iowa State University 2901 South Loop Drive, Suite 3700 Ames, IA 50010-8632 Phone Manager NASA Food Technology Commercial Space Center Iowa State University 2901 South Loop Drive, Suite

  13. Representation of noncommutative phase space

    E-Print Network [OSTI]

    Kang Li; Jianhua Wang; Chiyi Chen

    2005-08-16T23:59:59.000Z

    The representations of the algebra of coordinates and momenta of noncommutative phase space are given. We study, as an example, the harmonic oscillator in noncommutative space of any dimension. Finally the map of Sch$\\ddot{o}$dinger equation from noncommutative space to commutative space is obtained.

  14. Orbit Spaces in Superconductivity

    E-Print Network [OSTI]

    Vittorino Talamini

    2006-07-30T23:59:59.000Z

    In the framework of Landau theory of phase transitions one is interested to describe all the possible low symmetry ``superconducting'' phases allowed for a given superconductor crystal and to determine the conditions under which this crystal undergoes a phase transition. These problems are best described and analyzed in the orbit space of the high symmetry group of the ``normal, non-superconducting'' phase of the crystal. In this article it is worked out a simple example concerning superconductivity, that shows the P-matrix method to determine the equations and inequalities defining the orbit space and its stratification. This approach is of general validity and can be used in all physical problems that make use of invariant functions, as long as the symmetry group is compact.

  15. Essays in Space Science

    SciTech Connect (OSTI)

    Ramaty, R.; Cline, T.L.; Ormes, J.F.

    1987-06-01T23:59:59.000Z

    The papers presented cover a broad segment of space research and are an acknowledgement of the personal involvement of Frank McDonald in many of these efforts. The totality of the papers were chosen so as to sample the scientific areas influenced by him in a significant manner. Three broad areas are covered: particles and fields of the solar system; cosmic ray astrophysics; and gamma ray, x ray, and infrared astronomics.

  16. Ideally embedded space-times

    E-Print Network [OSTI]

    Haesen, S; Haesen, Stefan; Verstraelen, Leopold

    2004-01-01T23:59:59.000Z

    Due to the growing interest in embeddings of space-time in higher-dimensional spaces we consider a specific type of embedding. After proving an inequality between intrinsically defined curvature invariants and the squared mean curvature, we extend the notion of ideal embeddings from Riemannian geometry to the indefinite case. Ideal embeddings are such that the embedded manifold receives the least amount of tension from the surrounding space. Then it is shown that the de Sitter spaces, a Robertson-Walker space-time and some anisotropic perfect fluid metrics can be ideally embedded in a five-dimensional pseudo-Euclidean space.

  17. Ideally embedded space-times

    E-Print Network [OSTI]

    Stefan Haesen; Leopold Verstraelen

    2004-04-01T23:59:59.000Z

    Due to the growing interest in embeddings of space-time in higher-dimensional spaces we consider a specific type of embedding. After proving an inequality between intrinsically defined curvature invariants and the squared mean curvature, we extend the notion of ideal embeddings from Riemannian geometry to the indefinite case. Ideal embeddings are such that the embedded manifold receives the least amount of tension from the surrounding space. Then it is shown that the de Sitter spaces, a Robertson-Walker space-time and some anisotropic perfect fluid metrics can be ideally embedded in a five-dimensional pseudo-Euclidean space.

  18. research in space Facilities on the International Space Station

    E-Print Network [OSTI]

    research in space Facilities on the International Space Station #12;1 #12;2 Table of Contents and Materials Research: 41 Fluid Physics, Crystal Growth, and External Test Beds Earth and Space Science (External and Internal): 51 Radiation, Thermal, Solar, and Geophysics ISS Control Centers 59 To Learn More

  19. INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP

    E-Print Network [OSTI]

    space exploration infrastructure standards facilitating interoperability through an international with relevant existing international working groups/ organisations. · Preparation and Organization of a WS1 INTERNATIONAL SPACE EXPLORATION COORDINATION GROUP WORKPLAN Update following 3rd ISECG Meeting

  20. Symplectic space and orthogonal space of n qubits

    E-Print Network [OSTI]

    Jian-Wei Xu

    2010-11-14T23:59:59.000Z

    In the Hilbert space of n qubits, we introduce the symplectic space (n odd) and the orthogonal space (n even) via the spin-flip operator. Under this mathematical structure we discuss some properties of n qubits, including homomorphically mapping the local operations of n qubits into the symplectic group or orthogonal group, and prove that the generalized ``magic basis'' is just the bi-orthonormal basis (that is, the orthonormal basis of both Hilbert space and the orthogonal space ). Finally, an example is given to discuss the application in physics of this mathematical structure.

  1. Electromagnetic fields induced by a point source in a uniaxial multiferroic full-space, half-space, and bimaterial space

    E-Print Network [OSTI]

    Pan, Ernie

    Electromagnetic fields induced by a point source in a uniaxial multiferroic full-space, half-space, and bimaterial space X. Wang and E. Pana) Department of Civil Engineering and Department of Applied Mathematics multiferroic full-space, half-space, and bimaterial space. While for the bimaterial space case the interface

  2. The -space Property in Monotonically Normal Spaces and GO-Spaces Harold R. Bennett, Texas Tech University, Lubbock, TX 79409

    E-Print Network [OSTI]

    Lutzer, David J.

    The -space Property in Monotonically Normal Spaces and GO-Spaces by Harold R. Bennett, Texas Tech-8795 Abstract In this paper we examine the role of the -space property (equivalently of the MCM-property) in generalized ordered (GO-)spaces and, more generally, in monotonically normal spaces. We show that a GO-space

  3. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Christian, Eric

    and Contracting Processes. Developing adequate cost estimates, managing program costs, and ensuring that NASA. · Transitioning from the Space Shuttle to the Next Generation of Space Vehicles. Balancing schedule and resource of the complexity of balancing the human capital, equipment, and property needs of the Space Shuttle Program

  4. SpaceWeather RESEARCH ARTICLE

    E-Print Network [OSTI]

    Lockwood, Mike

    ), The Solar Stormwatch CME catalogue: Results from the first space weather citizen science project, Space is properly cited. The Solar Stormwatch CME catalogue: Results from the first space weather citizen science citizen science project, the aim of which is to identify and track coronal mass ejections (CMEs) observed

  5. Hyper Space Issue 3

    E-Print Network [OSTI]

    1978-01-01T23:59:59.000Z

    WIMTEft 3 EDITOR'S SPACE 4 PEN PALS 4 COMMUNICATIONS 5 SW IS GAINING 5 BIOS 6SW SERIAL CHAPTFR I 8 STAR WARS PflFM 8 A SONG FOR THF UNBORN 9 PIONFFR SHORT STORY 70WITHINTHFFORHF 70 LOOKING BACK 77 RATTIF EPIC PflFM PART 1 12 BEHIND.... Follow me." Herb led him through the woods. Then he pulled away the branches and debris. When the man saw it his eyebrows went up in surprise. "Oh no, don't tell me we got another ship from Earth. I wish they'd quit sending us their junk." 9 WITHIN...

  6. European Space Power Conference

    SciTech Connect (OSTI)

    Bents, D.J.; Kohout, L.L.; Mckissock, B.I.; Rodriguez, C.D.; Withrow, C.A.; Colozza, A.; Hanlon, J.C.; Schmitz, P.C.

    1991-01-01T23:59:59.000Z

    To support the Space Exploration Initiative (SEI), a study was performed to investigate power system alternatives for the rover vehicles and servicers that were subsequently generated for each of these rovers and servicers, candidate power sources incorporating various power generation and energy storage technologies were identified. The technologies were those believed most appropriate to the SEI missions, and included solar, electrochemical, and isotope systems. The candidates were characterized with respect to system mass, deployed area, and volume. For each of the missions a preliminary selection was made. Results of this study depict the available power sources in light of mission requirements as they are currently defined.

  7. Berkeley Lab Space

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645U.S. DOE Office511041clothAdvanced Materials Advanced Materials Find More Like3.3BenefitsSearch ThisSpace Committee

  8. Non-nuclear power sources for deep space

    SciTech Connect (OSTI)

    Kennel, E.B.; Tang, C.; Santarius, J.F.

    1998-07-01T23:59:59.000Z

    Electric propulsion and non-nuclear power can be used in tandem as a replacement for the current chemical booster and radioisotope thermoelectric generators now in use for deep space applications (i.e., to the asteroid belt and beyond). In current generation systems, electric propulsion is usually considered to be impractical because of the lack of high power for deep space, and non-nuclear power is thought to be impractical partly due to its high mass. However, when taken in combination, a solar powered electric upper stage can provide ample power and propulsion capability for use in deep space. Radioisotope thermoelectric generator (RTG) systems have generally been selected for missions only when other systems are absolutely unavailable. The disadvantages of radioisotopes include the need for nuclear safety as another dimension of concern in payload integration; the lack of assured availability of plutonium in the post-cold-war world; the enormous cost of plutonium-238; and the system complexity introduced by the need to continuously cool the system during the pre-launch phase. A conservative estimate for the total power for the solar array at beginning of life (BOL) may be in the range of 25 kW in order to provide 500 W continuous power at Jupiter. The availability of {approximately} 25 kW(e) in earth orbit raises the interesting possibility of coupling electric propulsion units to this free electric power. If electric propulsion is used to raise the probe from low-earth-orbit to an earth-escape trajectory, the system could actually save on low-earth orbit mass. Electric propulsion could be used by itself in a spiral trajectory orbit raising maneuver to earth escape velocity, or it could be used in conjunction with a chemical upper stage (either solid rocket or liquid), which would boost the payload to an elliptical orbit. The concept is to begin the Earth-Jupiter trip with a swing-by near the Sun close to the orbit of Venus and perhaps even closer if thermal loads can be tolerated. During the solar swing-by, much more power will be produced by the solar panels, allowing the spacecraft's velocity to be increased significantly. The outbound leg of the journey can, therefore, be made much more quickly than with the classical trajectory. For the purposes of a Jupiter mission, it is assumed that 20 km/sec total delta-v would be required. For a payload envelope of 17,304 kg, a 1,900 sec Isp capability means that 11,386 kg of propellant would have to be consumed, leaving 5,917 kg for the mass of the probe plus dry mass of the upper stage. The thruster subsystem would require 765 kg of thruster subsystem mass, and probably less. Assuming tanks, regulators and valves amount to 10% of the propellant mass (very likely a pessimistic assumption), it is possible to assign a mass of 1,150 kg for the tankage subsystem. This results in a mass allowance of at least 4,000 kg for the probe. This compares favorably with the dry mass of 1,637 kg for Galileo, for example, and suggests that more than adequate margin exists. If the payload margin is used for battery storage, flyby missions to the outer planets may be possible.

  9. Noncommutative space-time models

    E-Print Network [OSTI]

    N. A. Gromov; V. V. Kuratov

    2005-07-01T23:59:59.000Z

    The FRT quantum Euclidean spaces $O_q^N$ are formulated in terms of Cartesian generators. The quantum analogs of N-dimensional Cayley-Klein spaces are obtained by contractions and analytical continuations. Noncommutative constant curvature spaces are introduced as a spheres in the quantum Cayley-Klein spaces. For N=5 part of them are interpreted as the noncommutative analogs of (1+3) space-time models. As a result the quantum (anti) de Sitter, Newton, Galilei kinematics with the fundamental length and the fundamental time are suggested.

  10. Optimal Solid Space Tower

    E-Print Network [OSTI]

    Alexander Bolonkin

    2007-01-08T23:59:59.000Z

    Theory and computations are provided for building of optimal (minimum weight) solid space towers (mast) up to one hundred kilometers in height. These towers can be used for tourism; scientific observation of space, observation of the Earth surface, weather and upper atmosphere experiment, and for radio, television, and communication transmissions. These towers can also be used to launch spaceships and Earth satellites. These macroprojects are not expensive. They require strong hard material (steel). Towers can be built using present technology. Towers can be used (for tourism, communication, etc.) during the construction process and provide self-financing for further construction. The tower design does not require human work at high altitudes; the tower is separated into sections; all construction can be done at the Earth surface. The transport system for a tower consists of a small engine (used only for friction compensation) located at the Earth surface. Problems involving security, control, repair, and stability of the proposed towers are addressed in other cited publications.

  11. Structure of Noncommutative Fock space

    E-Print Network [OSTI]

    Si-Cong Jing; Qiu-Yu Liu; Tu-Nan Ruan

    2005-05-05T23:59:59.000Z

    The structure of the state-vector space of identical bosons in noncommutative spaces is investigated. To maintain Bose-Einstein statistics the commutation relations of phase space variables should simultaneously include coordinate-coordinate non-commutativity and momentum-momentum non-commutativity, which lead to noncommutative Fock space. By this we mean that creation and annihilation operators corresponding to different degrees of freedom of the bosons do not commute each other. The main character of the noncommutative Fock space is there are no ordinary number representations because of the non-commutativity between different number operators. However, eigenvectors of several pairs of commuting Hermitian operators are obtained which can also be served as bases in this Fock space. As a simple example, an explicit form of two-dimensional canonical coherent state in this noncommutative Fock space is constructed and its properties are discussed.

  12. Machian space quanta

    E-Print Network [OSTI]

    David W. Essex

    2015-01-25T23:59:59.000Z

    A new model for space and matter is obtained by joining every pair of point charges in the observable universe by an ethereal string. Positive gravitational potential energy in each string gives an attractive gravitational force due to the action of an energy conservation constraint. Newton's laws of motion are derived and inertia is explained in accordance with Mach's principle. The Machian string model gives a surprisingly simple way to understand the expansion history of the Universe. The decelerating expansion in the radiation era and the matter era is explained without using General Relativity and the transition from deceleration to acceleration is explained without the need to introduce a separate 'dark energy' component. The interaction between Machian strings gives a physical model for modified Newtonian dynamics (MOND) and is therefore an alternative to 'dark matter'.

  13. Machian space quanta

    E-Print Network [OSTI]

    Essex, David W

    2015-01-01T23:59:59.000Z

    A new model for space and matter is obtained by joining every pair of point charges in the observable universe by an ethereal string. Positive gravitational potential energy in each string gives an attractive gravitational force due to the action of an energy conservation constraint. Newton's laws of motion are derived and inertia is explained in accordance with Mach's principle. The Machian string model gives a surprisingly simple way to understand the expansion history of the Universe. The decelerating expansion in the radiation era and the matter era is explained without using General Relativity and the transition from deceleration to acceleration is explained without the need to introduce a separate 'dark energy' component. The interaction between Machian strings gives a physical model for modified Newtonian dynamics (MOND) and is therefore an alternative to 'dark matter'.

  14. Constrained space camera assembly

    DOE Patents [OSTI]

    Heckendorn, Frank M. (Aiken, SC); Anderson, Erin K. (Augusta, GA); Robinson, Casandra W. (Trenton, SC); Haynes, Harriet B. (Aiken, SC)

    1999-01-01T23:59:59.000Z

    A constrained space camera assembly which is intended to be lowered through a hole into a tank, a borehole or another cavity. The assembly includes a generally cylindrical chamber comprising a head and a body and a wiring-carrying conduit extending from the chamber. Means are included in the chamber for rotating the body about the head without breaking an airtight seal formed therebetween. The assembly may be pressurized and accompanied with a pressure sensing means for sensing if a breach has occurred in the assembly. In one embodiment, two cameras, separated from their respective lenses, are installed on a mounting apparatus disposed in the chamber. The mounting apparatus includes means allowing both longitudinal and lateral movement of the cameras. Moving the cameras longitudinally focuses the cameras, and moving the cameras laterally away from one another effectively converges the cameras so that close objects can be viewed. The assembly further includes means for moving lenses of different magnification forward of the cameras.

  15. Introduction Space Time Codes Space Time Coding with Feedback New Thoughts Summary Space-Time Coding for Multi-Antenna

    E-Print Network [OSTI]

    Veeravalli, Venugopal

    Introduction Space Time Codes Space Time Coding with Feedback New Thoughts Summary Space 2007 #12;Introduction Space Time Codes Space Time Coding with Feedback New Thoughts Summary MIMO: Diversity vs Multiplexing Multiplexing Diversity Pictures taken from lectures notes on Space Time Coding

  16. Confined Space Entry Permit Department: _________________________________________ Date: _____________________

    E-Print Network [OSTI]

    Cohen, Ronald C.

    .5% Flammability H2S removed from space Secure space Conduct debriefing Entrants Name Signature Time In Time Out Attendants)____________________________________ Tools, equipment and personnel removed from space Secure space ALTERNATE ENTRY Fill out

  17. Morse theory in path space

    E-Print Network [OSTI]

    Yong Seung Cho; Soon-Tae Hong

    2007-06-01T23:59:59.000Z

    We consider the path space of a curved manifold on which a point particle is introduced in a conservative physical system with constant total energy to formulate its action functional and geodesic equation together with breaks on the path. The second variation of the action functional is exploited to yield the geodesic deviation equation and to discuss the Jacobi fields on the curved manifold. We investigate the topology of the path space using the action functional on it and its physical meaning by defining the gradient of the action functional, the space of bounded flow energy solutions and the moduli space associated with the critical points of the action functional. We also consider the particle motion on the $n$-sphere $S^{n}$ in the conservative physical system to discuss explicitly the moduli space of the path space and the corresponding homology groups.

  18. Entropic Gravity in Rindler Space

    E-Print Network [OSTI]

    Edi Halyo

    2011-04-13T23:59:59.000Z

    We show that Rindler horizons are entropic screens and gravity is an entropic force in Rindler space by deriving the Verlinde entropy formula from the focusing of light due to a mass close to the horizon. Consequently, gravity is also entropic in the near horizon regions of Schwarzschild and de Sitter space-times. In different limits, the entropic nature of gravity in Rindler space leads to the Bekenstein entropy bound and the uncertainty principle.

  19. No Prejudice in Space

    SciTech Connect (OSTI)

    Cotta, R.C.; Gainer, J.S.; Hewett, J.L.; Rizzo, T.G.; /SLAC

    2010-08-26T23:59:59.000Z

    We present a summary of recent results obtained from a scan of the 19-dimensional parameter space of the pMSSM and its implications for dark matter searches. We have generated a large set of points in parameter space (which we call 'models') for the 19-parameter CP-conserving pMSSM, where MFV has been assumed. We subjected these models to numerous experimental and theoretical constraints to obtain a set of {approx}68 K models which are consistent with existing data. We attempted to be somewhat conservative in our implementation of these constraints; in particular we only demanded that the relic density of the LSP not be greater than the measured value of {Omega}H{sup 2} for non-baryonic dark matter, rather than assuming that the LSP must account for the entire observed relic density. Examining the properties of the neutralinos in these models, we find that many are relatively pure gauge eigenstates with Higgsinos being the most common, followed by Winos. The relative prevalence of Higgsino and Wino LSPs leads many of our models to have a chargino as nLSP, often with a relatively small mass splitting between this nLSP and the LSP; this has important consequences in both collider and astroparticle phenomenology. We find that, in general, the LSP in our models provides a relatively small ({approx} 4%) contribution to the dark matter, however there is a long tail to this distribution and a substantial number of models for which the LSP makes up all or most of the dark matter. Typically these neutralinos are mostly Binos. Examining the signatures of our models in direct and indirect dark matter detection experiments, we find a wide range of signatures for both cases. In particular, we find a much larger range of WIMP-nucleon cross sections than is found in any particular model of SUSY-breaking. As these cross sections also enter the regions of parameter space suggested by non-SUSY models, it appears that the discovery of WIMPs in direct detection experiments might not be sufficient to determine the correct model of the underlying physics. As a first look at the signatures of these models in indirect detection experiments, we examined whether our models could explain the PAMELA excess in the positron to electron ratio at high energies. We find that there are models which fit the PAMELA data rather well, and some of these have significantly smaller boost factors than generally assumed for a thermal relic. The study of the pMSSM presents exciting new possibilities for SUSY phenomenology. The next few years will hopefully see important discoveries both in colliders and in satellite or ground-based astrophysical experiments. It is important that we follow the data and not our existing prejudices; hopefully this sort of relatively model-independent approach to collider and astrophysical phenomenology can be useful in this regard.

  20. Building America Webinar: Retrofitting Central Space Conditioning...

    Energy Savers [EERE]

    Strategies for Multifamily Buildings - Control strategies to improve hydronic space heating performance Building America Webinar: Retrofitting Central Space Conditioning...

  1. Storage Space Request Aurora Facility

    E-Print Network [OSTI]

    Ickert-Bond, Steffi

    Storage Space Request Aurora Facility (1855 Marika) Department and Division: _______________________________________________________ Storage Contact: ____________________________________________________________ Name Phone and fax Fiscal Footage required: ______________ Brief Description of storage items

  2. Radioisotopes: Energy for Space Exploration

    ScienceCinema (OSTI)

    Carpenter, Bob; Green, James; Bechtel, Ryan

    2013-05-29T23:59:59.000Z

    Through a strong partnership between the Energy Department's office of Nuclear Energy and NASA, Radioisotope Power Systems have been providing the energy for deep space exploration.

  3. TANK SPACE ALTERNATIVES ANALYSIS REPORT

    SciTech Connect (OSTI)

    TURNER DA; KIRCH NW; WASHENFELDER DJ; SCHAUS PS; WODRICH DD; WIEGMAN SA

    2010-04-27T23:59:59.000Z

    This report addresses the projected shortfall of double-shell tank (DST) space starting in 2018. Using a multi-variant methodology, a total of eight new-term options and 17 long-term options for recovering DST space were evaluated. These include 11 options that were previously evaluated in RPP-7702, Tank Space Options Report (Rev. 1). Based on the results of this evaluation, two near-term and three long-term options have been identified as being sufficient to overcome the shortfall of DST space projected to occur between 2018 and 2025.

  4. Space Data Systems (ISR-3)

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

    3 Space Data Systems Data collection and processing, information exploitation and delivery Contacts Group Leader Michael Cai Email Staff Operations Manager Nancy Graves Email...

  5. Phase space quantum mechanics - Direct

    SciTech Connect (OSTI)

    Nasiri, S.; Sobouti, Y.; Taati, F. [Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of) and Department of Physics, Zanjan University, Zanjan (Iran); Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of); Institute for Advanced Studies in Basic Sciences, Zanjan, 45195-1159 (Iran, Islamic Republic of) and Department of Physics, University of Kurdistan, D-78457 Sanadaj (Iran)

    2006-09-15T23:59:59.000Z

    Conventional approach to quantum mechanics in phase space (q,p), is to take the operator based quantum mechanics of Schroedinger, or an equivalent, and assign a c-number function in phase space to it. We propose to begin with a higher level of abstraction, in which the independence and the symmetric role of q and p is maintained throughout, and at once arrive at phase space state functions. Upon reduction to the q- or p-space the proposed formalism gives the conventional quantum mechanics, however, with a definite rule for ordering of factors of noncommuting observables. Further conceptual and practical merits of the formalism are demonstrated throughout the text.

  6. Target Space Duality III: Potentials

    E-Print Network [OSTI]

    Orlando Alvarez; Blazej Ruszczycki

    2007-12-31T23:59:59.000Z

    We generalize previous results on target space duality to the case where there are background fields and the sigma model lagrangian has a potential function.

  7. History of manned space flight

    SciTech Connect (OSTI)

    Baker, D.

    1981-01-01T23:59:59.000Z

    This book is the history of all the great moments of failure, tension, drama, euphoria, and success that characterized the beginning of man's adventure in space. It covers the technology and scientific knowledge, the vision, the politics, and the dedication of all those involved in the space program. One chapter is devoted to the experiments and observations of the astronauts as they explored the moon. An integral part of the history of space exploration is the race between Russia and the US to establish man in space. This is included. The book vividly portrays the experiences of the astronauts from Mercury, Gemini, Apollo, Skylab, and the Apollo-Soyuz missions. (SC)

  8. National Aeronautics and Space Administration Space Exploration Vehicle Concept

    E-Print Network [OSTI]

    Background NASA is testing concepts for a new generation of space exploration vehicles. These space blades ­ to be attached for special missions. The chassis can also pick up and Functional Requirements: The SEV must be able to hold a crew of two, but can support a crew of four in an emergency it to drive

  9. Constrained space camera assembly

    DOE Patents [OSTI]

    Heckendorn, F.M.; Anderson, E.K.; Robinson, C.W.; Haynes, H.B.

    1999-05-11T23:59:59.000Z

    A constrained space camera assembly which is intended to be lowered through a hole into a tank, a borehole or another cavity is disclosed. The assembly includes a generally cylindrical chamber comprising a head and a body and a wiring-carrying conduit extending from the chamber. Means are included in the chamber for rotating the body about the head without breaking an airtight seal formed therebetween. The assembly may be pressurized and accompanied with a pressure sensing means for sensing if a breach has occurred in the assembly. In one embodiment, two cameras, separated from their respective lenses, are installed on a mounting apparatus disposed in the chamber. The mounting apparatus includes means allowing both longitudinal and lateral movement of the cameras. Moving the cameras longitudinally focuses the cameras, and moving the cameras laterally away from one another effectively converges the cameras so that close objects can be viewed. The assembly further includes means for moving lenses of different magnification forward of the cameras. 17 figs.

  10. CHEMISTRY OF SILICA IN CERRO PRIETO BRINES

    E-Print Network [OSTI]

    Weres, O.

    2012-01-01T23:59:59.000Z

    lfuen operated w:l.thout sludge recirculation, this pilotcould lead to problems with sludge accumulation there. Ifby recirculation of part of the sludge coming out of the

  11. Chemistry of Silica in Cerro Prieto Brines

    E-Print Network [OSTI]

    Weres, Oleh

    2012-01-01T23:59:59.000Z

    1975). When operated without sludge r e c i r c u l a t i ot o c o l l o i d a l silica. sludge accumulation there. thel a t i o n of part of the sludge coming out of The l a r g

  12. Chemistry of Silica in Cerro Prieto Brines

    E-Print Network [OSTI]

    Weres, O.

    2010-01-01T23:59:59.000Z

    1975). When operated without sludge r e c i r c u l a t i ot o c o l l o i d a l silica. sludge accumulation there. thel a t i o n of part of the sludge coming out of The l a r g

  13. 6, 70757091, 2006 precipitation in brine

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    be produced on the frozen surface of sea ice (Adams et al., 2002), this source would quickly be exhausted in polar regions over recently formed sea ice, we can model successfully the transformation of inert sea of already activated bromine (Borken, 1996; Sander et al., 1997), or artificially acidified the model aerosol

  14. Property:BrineConstituents | 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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to: navigation,Pillar Group BV Jump to:InformationCaseType Jump

  15. Batteries from Brine | Department of Energy

    Energy Savers [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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed off Energy.gov. Are you0 ARRAM-04-07 Audit Report: OAS-M-04-07BUDGET DETAILS BOOKBarton V.Batteries

  16. Development Operations Hypersaline Geothermal Brine Utilization Imperial

    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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnualPropertyd8c-a9ae-f8521cbb8489 No revision hasda62829c05bGabbs Type Termciting TypeCounty,

  17. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    this goal. The first steps in enablingthe Visionfor Space Exploration are to return the Space Shuttle fleet and human capital to ensuring that this first step is executed to the best of our abilities. Once the two heater to further reduce or eliminatethe ice that naturally forms in the area. This decision to insert

  18. Title: Space Management --Requests for Space Renovations and Changes in the Use of Space

    E-Print Network [OSTI]

    Huang, Jianyu

    president, the Director of Space Management will request a cost estimate from Facilities Management. 4. With the cost estimate in hand, the cognizant vice president and the Director of Space Management will undertake's Capital Budget. Vice presidents are encouraged to assign priorities to the projects in their areas. 6. Or

  19. 2010 RalSpace 2010 RalSpace Current status of RAL Space

    E-Print Network [OSTI]

    ',...) + 62 Companies (eg Astrium, SEA, SciSys, Vega, Lockheed, Thales,...) + 30 Universities (eg MIT, Cal at Harwell ....... in 34 countries #12;What do we do today? · Research Solar Physics, I-R Astronomy, Space, Precision components, Robotics test facility #12;MIRIJames Webb Space Telescope #12;#12;Solar Orbiter ESA

  20. DEFINITION OF USABLE SPACE "Usable Space" is the actual space to be occupied by the Company. It is

    E-Print Network [OSTI]

    DEFINITION OF USABLE SPACE "Usable Space" is the actual space to be occupied by the Company. It is determined as follows: If the space is on a single-tenancy floor, compute the inside gross area by measuring. If the space is on a multiple-tenancy floor, measure from the exterior building walls as above and to the room

  1. Finding Space Beyond Variables: An Analytical Review of Urban Space and Social Inequalities

    E-Print Network [OSTI]

    Joseph, Lauren

    2008-01-01T23:59:59.000Z

    On the Social Organization of Urban Space: Subversions andand Community in Urban Spaces. ” In David Bell & Gill1991. The Production of Space. Transl. Donald Nicholson-

  2. Dimensional regularization in configuration space

    SciTech Connect (OSTI)

    Bollini, C.G. [Facultad de Ciencias Exactas de La Universidad de La Plata, Departamento de Fisica, C.C. 67 La Plata (Argentina)] [Facultad de Ciencias Exactas de La Universidad de La Plata, Departamento de Fisica, C.C. 67 La Plata (Argentina); [Comision de Investigaciones Cientificas de La Provincia de Buenos Aires, Buenos Aires (Argentina); Giambiagi, J.J. [Centro Brasileiro de Pesquisas Fisicas--CBPF, Rua Dr. Xavier Sigaud, 150, 22.290-180 Rio de Janeiro RJ, (Brasil)] [Centro Brasileiro de Pesquisas Fisicas--CBPF, Rua Dr. Xavier Sigaud, 150, 22.290-180 Rio de Janeiro RJ, (Brasil)

    1996-05-01T23:59:59.000Z

    Dimensional regularization is introduced in configuration space by Fourier transforming in {nu} dimensions the perturbative momentum space Green functions. For this transformation, the Bochner theorem is used; no extra parameters, such as those of Feynman or Bogoliubov and Shirkov, are needed for convolutions. The regularized causal functions in {ital x} space have {nu}-dependent moderated singularities at the origin. They can be multiplied together and Fourier transformed (Bochner) without divergence problems. The usual ultraviolet divergences appear as poles of the resultant analytic functions of {nu}. Several examples are discussed. {copyright} {ital 1996 The American Physical Society.}

  3. Contacts of space--times

    SciTech Connect (OSTI)

    Maia, M.D.

    1981-03-01T23:59:59.000Z

    The concept of contact between manifolds is applied to space--times of general relativity. For a given background space--time a contact approximation of second order is defined and interpreted both from the point of view of a metric pertubation and of a higher order tangent manifold. In the first case, an application to the high frequency gravitational wave hypothesis is suggested. In the second case, a constant curvature tangent bundle is constructed and suggested as a means to define a ten parameter local space--time symmetry.

  4. Metrization in weakly sequential spaces 

    E-Print Network [OSTI]

    Emerson, Dominique Margaret

    1975-01-01T23:59:59.000Z

    * dt f th ~ A t N h tf 1 ~Sit. of weakly sequential spaces along with that of cs-hereditarily closure-preserving families, the author has characterized metri- zability in spaces where sequences suffice. Chapter II contains the definitions of locally... Dugund]i [5]. One deviation from this convention is the use of the symbol "clX(A)" to denote the closure in the space X of a set A. The subscript "X" will be deleted when no confusion will arise. The letters Z and N will denote the set of integers...

  5. Computer aided architectural space planning

    E-Print Network [OSTI]

    Schramek, Charles Wayne

    1971-01-01T23:59:59.000Z

    f' or introducing me to the space planning aspect of ar chitecture. TARLL ilF CUNTCIUTS Ci(RVTI R I CHAI'TCR II INTRODUCTION. ARCHITECTURAL SPACE PLANNING. . CHAPTCR III TIRE SPACL PLANNING PROCESS. . 12 C I I A I ' I C I/ I U CHAI'TF. R U... L I-I A PT F' R U I THE IrlTERREI ATIONS ANALYSIS MODEL. . . THE SPACE ALLOCATION PROGRAM. . . . . . . . FLITLIRE PLANNING AND DEVELOPMENT. . . . . S(1 40 CI-IRPTER UI I THE SUMIMIARY LITERATURE CITEU. Al'Pi: NDICES SAI'IPLE DATA SHEETS II...

  6. Particle Creation in Global de Sitter Space: Bulk Space Consideration

    E-Print Network [OSTI]

    M. Reza Tanhayi

    2014-08-12T23:59:59.000Z

    Recently in \\cite{Anderson:2013zia, Anderson:2013ila}, it was shown that global de Sitter space is unstable even to the massive particle creation with no self-interactions. In this paper we study the instability by making use of the coordinate-independent plane wave in de Sitter space, explicitly, we show there is a mixture of positive and negative solutions at the past infinity. The so-called plane wave are defined globally in de Sitter space and de Sitter invariance is manifest since such modes are deduced from the group theoretical point of view by the means of the Casimir operators. This method could potentially generalize to higher spin consideration and the corresponding higher-spin wave equations can be obtained in terms of the plane wave. In fact, the underling symmetry of embedding space namely the $4+1$ dimensional flat space is used to write the field equations and the solutions are obtained in terms of the plane wave in embedding space.

  7. ABSL Space Products 2011 BENEFITS / ECONOMIC PROSPECTS

    E-Print Network [OSTI]

    Anand, Mahesh

    © ABSL Space Products 2011 BENEFITS / ECONOMIC PROSPECTS: Future exploration ­ Roving ­ Rendezvous Space Products 2011 ABSL Space Products for Growth: HERITAGE & RELEVANCE ABSL flew the first Lithium-Ion battery in space with 70 launched to date Now 100 people working on space batteries, including US office

  8. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Deep Space Atomic Clock Composite Strut Structural Testing Exoskeleton Solar Sail and Boom Fab MSL heat shield with instrumentation Inflatable Re-entry Vehicle Experiment Additive Manufacturing BIRD focal

  9. Planck Distribution in Noncommutative Space

    E-Print Network [OSTI]

    C. Yuce

    2005-06-13T23:59:59.000Z

    In this study, we derive the Planck distribution function in noncommutative space. It is found that it is modified by a small factor. It is shown that it is reduced to the usual Planck distribution function in the commutative limit .

  10. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Lüttgen, Gerald

    National Aeronautics and Space Administration Langley Research Center Hampton, Virginia 23681 ICASE, Hampton, Virginia Victor Carreño NASA Langley Research Center, Hampton, Virginia Institute for Computer Applications in Science and Engineering NASA Langley Research Center Hampton, VA Operated

  11. 4.8 Row Space

    E-Print Network [OSTI]

    PRETEX (Halifax NS) #1 1054 1999 Mar 05 10:59:16

    2010-02-12T23:59:59.000Z

    Feb 16, 2007 ... For Problems 26–31, find the change-of-basis matrix PB?C from the given basis C to the given basis B of the vector space V . 26. V , B, and C ...

  12. Metrization in weakly sequential spaces

    E-Print Network [OSTI]

    Emerson, Dominique Margaret

    1975-01-01T23:59:59.000Z

    METRIZATION IN WEAXLY SEQUENTIAL SPACES A Thesis by DOMINIQUE MARGARET EMERSON Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE May 1975 Ma)or Sub...]ect: Mathematics METRIZATION IN WEAKLY SEQUENTIAL SPACES A Thesis by DOMINIQUE MARGARET EMERSON Approved as to style and content by: (Chairman of Committee) c-0 (Head of Department) ember) (Member) May 1975 ABSTRACT Metrization in Weakly Sequential...

  13. Coordinate transformations in quaternion spaces

    E-Print Network [OSTI]

    Zihua Weng

    2009-05-15T23:59:59.000Z

    The quaternion spaces can be used to describe the property of electromagnetic field and gravitational field. In the quaternion space, some coordinate transformations can be deduced from the feature of quaternions, including Lorentz transformation and Galilean transformation etc., when the coordinate system is transformed into others. And some coordinate transformations with variable speed of light can be obtained in the electromagnetic field and gravitational field.

  14. Nuclear Propulsion in Space (1968)

    ScienceCinema (OSTI)

    None

    2014-06-17T23:59:59.000Z

    Project NERVA was an acronym for Nuclear Engine for Rocket Vehicle Application, a joint program of the U.S. Atomic Energy Commission and NASA managed by the Space Nuclear Propulsion Office (SNPO) at the Nuclear Rocket Development Station in Jackass Flats, Nevada U.S.A. Between 1959 and 1972, the Space Nuclear Propulsion Office oversaw 23 reactor tests, both the program and the office ended at the end of 1972.

  15. Nuclear Propulsion in Space (1968)

    SciTech Connect (OSTI)

    None

    2012-06-23T23:59:59.000Z

    Project NERVA was an acronym for Nuclear Engine for Rocket Vehicle Application, a joint program of the U.S. Atomic Energy Commission and NASA managed by the Space Nuclear Propulsion Office (SNPO) at the Nuclear Rocket Development Station in Jackass Flats, Nevada U.S.A. Between 1959 and 1972, the Space Nuclear Propulsion Office oversaw 23 reactor tests, both the program and the office ended at the end of 1972.

  16. Task-space setpoint control of robots with dual task-space information

    E-Print Network [OSTI]

    Cheah, C. C.

    In conventional task-space control problem of robots, a single task-space information is used for the entire task. When the task-space control problem is formulated in image space, this implies that visual feedback is used ...

  17. Physical and Numerical Space Running Head: Biases in Physical and Numerical Space

    E-Print Network [OSTI]

    Chatterjee, Anjan

    Physical and Numerical Space 1 Running Head: Biases in Physical and Numerical Space Elementary school children's attentional biases in physical and numerical space Tilbe Göksun: April 30, 2012 #12; Physical and Numerical Space 2 Abstract Numbers

  18. Nonparametric Regression in Orlicz spaces? Saverio Salzo

    E-Print Network [OSTI]

    Combettes, Patrick Louis

    inequalities We start by recalling a theorem about inequalities in Banach spaces. Theorem (Xu, Roach 91') Let B in Banach spaces. Theorem (Xu, Roach 91') Let B be Banach space and p ]1, +[. If B is uniformly smooth

  19. Measuring the cosmic shear in Fourier space

    E-Print Network [OSTI]

    Zhang, Jun

    2008-01-01T23:59:59.000Z

    Measuring the Cosmic Shear in Fourier Space Bernardeau F. ,the Cosmic Shear in Fourier Space Jun Zhang ? Department ofshould be carried out in Fourier space, in which the point

  20. Space, Place, and Music in New Orleans

    E-Print Network [OSTI]

    Raimondi, Julie Michelle

    2012-01-01T23:59:59.000Z

    Gaston. 1994. The Poetics of Space: The Classic Look at How1980. The Human Experience of Space and Place. New York: St.hood Comes First: Race, Space, and Place in Rap and Hip-

  1. Building America Webinar: High Performance Space Conditioning...

    Energy Savers [EERE]

    Webinar: High Performance Space Conditioning Systems, Part II - Compact Buried Ducts Building America Webinar: High Performance Space Conditioning Systems, Part II - Compact Buried...

  2. Space Conditioning Standing Technical Commitee Presentation ...

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

    Commitee Presentation Space Conditioning Standing Technical Commitee Presentation This presentation outlines the goals of the Space Conditioning Standing Technical ommittee, as...

  3. Building America Webinar: High Performance Space Conditioning...

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

    II - Design Options for Locating Ducts within Conditioned Space Building America Webinar: High Performance Space Conditioning Systems, Part II - Design Options for Locating Ducts...

  4. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,602 1,397...

  5. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Energy Consumption Survey: Energy End-Use Consumption Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All...

  6. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings* ... 1,870 1,276...

  7. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 2008 Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 2,037...

  8. Indexing Moving Objects by Space Filling Curves in the Dual Space

    E-Print Network [OSTI]

    Kaiserslautern, Universität

    The Bdual ­ tree: Indexing Moving Objects by Space Filling Curves in the Dual Space By Man Lung Yiu Objects by Space Filling Curves in the Dual Space Introduction Related work Problem definition: Indexing Moving Objects by Space Filling Curves in the Dual Space Introduction Related work Problem

  9. Transform-Space View: Performing Spatial Join in the Transform Space

    E-Print Network [OSTI]

    Whang, Kyu-Young

    Transform-Space View: Performing Spatial Join in the Transform Space Using Original-Space Indexes that satisfy a given spatial relationship. In spatial joins using indexes, original-space indexes such as the R-tree are widely used. An original-space index is the one that indexes objects as represented in the original space

  10. Integration of space weather into space situational awareness

    SciTech Connect (OSTI)

    Reeves, Geoffrey D [Los Alamos National Laboratory

    2010-11-09T23:59:59.000Z

    Rapid assessment of space weather effects on satellites is a critical step in anomaly resolution and satellite threat assessment. That step, however, is often hindered by a number of factors including timely collection and delivery of space weather data and the inherent com plexity of space weather information. As part of a larger, integrated space situational awareness program, Los Alamos National Laboratory has developed prototype operational space weather tools that run in real time and present operators with customized, user-specific information. The Dynamic Radiation Environment Assimilation Model (DREAM) focuses on the penetrating radiation environment from natural or nuclear-produced radiation belts. The penetrating radiation environment is highly dynamic and highly orbit-dependent. Operators often must rely only on line plots of 2 MeV electron flux from the NOAA geosynchronous GOES satellites which is then assumed to be representative of the environment at the satellite of interest. DREAM uses data assimilation to produce a global, real-time, energy dependent specification. User tools are built around a distributed service oriented architecture (SOA) which will allow operators to select any satellite from the space catalog and examine the environment for that specific satellite and time of interest. Depending on the application operators may need to examine instantaneous dose rates and/or dose accumulated over various lengths of time. Further, different energy thresholds can be selected depending on the shielding on the satellite or instrument of interest. In order to rapidly assess the probability that space weather was the cause of anomalous operations, the current conditions can be compared against the historical distribution of radiation levels for that orbit. In the simplest operation a user would select a satellite and time of interest and immediately see if the environmental conditions were typical, elevated, or extreme based on how often those conditions occur in that orbit. This allows users to rapidly rule in or out environmental causes of anomalies. The same user interface can also allow users to drill down for more detailed quantitative information. DREAM can be run either from a distributed web-based user interface or as a stand-alone application for secure operations. In this paper we discuss the underlying structure of the DREAM model and demonstrate the user interface that we have developed . We also present some prototype data products and user interfaces for DREAM and discuss how space environment information can be seamlessly integrated into operational SSA systems.

  11. Path Integration on Darboux Spaces

    E-Print Network [OSTI]

    Christian Grosche

    2005-07-20T23:59:59.000Z

    In this paper the Feynman path integral technique is applied to two-dimensional spaces of non-constant curvature: these spaces are called Darboux spaces $\\DI$--$\\DIV$. We start each consideration in terms of the metric and then analyze the quantum theory in the separable coordinate systems. The path integral in each case is formulated and then solved in the majority of cases, the exceptions being quartic oscillators where no closed solution is known. The required ingredients are the path integral solutions of the linear potential, the harmonic oscillator, the radial harmonic oscillator, the modified P\\"oschl--Teller potential, and for spheroidal wave-functions, respectively. The basic path integral solutions, which appear here in a complicated way, have been developed in recent work and are known. The final solutions are represented in terms of the corresponding Green's functions and the expansions into the wave-functions, respectively. We also sketch some limiting cases of the Darboux spaces, where spaces of constant negative and zero curvature emerge.

  12. 10-Dim Einstein spaces made up on basis of 6-Dim Ricci-flat spaces and 4-Dim Einstein spaces

    E-Print Network [OSTI]

    Valery Dryuma

    2006-06-09T23:59:59.000Z

    Some examples of ten-dimensional vacuum Einstein spaces made up on basis of four-dimensional Ricci-flat spaces and six-dimensional Ricci-flat spaces defined by solutions of the Sin-Gordon equation are constructed. The properties of geodesics for such type of the spaces are discussed

  13. Evaluations of average level spacings

    SciTech Connect (OSTI)

    Liou, H.I.

    1980-01-01T23:59:59.000Z

    The average level spacing for highly excited nuclei is a key parameter in cross section formulas based on statistical nuclear models, and also plays an important role in determining many physics quantities. Various methods to evaluate average level spacings are reviewed. Because of the finite experimental resolution, to detect a complete sequence of levels without mixing other parities is extremely difficult, if not totally impossible. Most methods derive the average level spacings by applying a fit, with different degrees of generality, to the truncated Porter-Thomas distribution for reduced neutron widths. A method that tests both distributions of level widths and positions is discussed extensivey with an example of /sup 168/Er data. 19 figures, 2 tables.

  14. National Aeronautics and Space Administration Space Launch System

    E-Print Network [OSTI]

    Waliser, Duane E.

    cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle's RS-25 engines. SLS is an advanced avionics. Propulsion for the SLS core stage will be provided by four RS-25 engines. The RS-25 engine design was previously designated the space shuttle main engine and is built by Aerojet Rocketdyne of Sacramento, Calif

  15. National Aeronautics and Space Administration Marshall Space Flight Center

    E-Print Network [OSTI]

    Waliser, Duane E.

    such as the Fastrac engine system, developed in only three years, and provided early development for the hydrogen for both Earth- to-orbit launch and in-space missions. We contribute engineering expertise for all phases and reducing overall cost. Marshall's managers and engineers have designed, developed, integrated

  16. National Aeronautics and Space Administration space launch system

    E-Print Network [OSTI]

    Waliser, Duane E.

    progress on the core stage with NASA Deputy Associate Administrator Lori Garver, RS-25 engines in the Space Shuttle Main Engine Processing Facility, solid rocket motor test firing, J-2X test firing #12;Providing and operations costs. It will use a liquid hydrogen and liquid oxygen propulsion system, which will include

  17. National Aeronautics and Space Administration Space Exploration Vehicle Concept

    E-Print Network [OSTI]

    Background NASA is testing concepts for a new generation of roving space exploration vehicles. These new allows various tools ­ winches, cable reels, backhoes, cranes and bulldozer blades ­ to be attached must be able to hold a crew of two, but can support a crew of four in an emergency · It can travel

  18. UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP

    E-Print Network [OSTI]

    Anand, Mahesh

    -DEPP-study baseline LEIA is derived directly from our Solar Orbiter EAS sensor; · However, options are also being studied for a highly miniaturised sensor system based on the MSSL's UK TechDemoSat instrument. Dust; ­ Ion spluttering; ­ Pick-up ions; ­ Photo-electrons from surface; #12;UCL DEPARTMENT OF SPACE & CLIMATE

  19. National Aeronautics and Space Administration Space Life and Physical Sciences

    E-Print Network [OSTI]

    Waliser, Duane E.

    The President's 2015 Budget is expected to be released next month 5 #12;2014 Exploration Budget FY 2014 Budget National Aeronautics and Space Administration FY 2014 PRESIDENT'S BUDGET REQUEST SUMMARY 7 #12 #12;Biological and Physical Science FY14 Budget Strategy · The FY 2014 Cost mark is $112.7M which

  20. National Aeronautics and Space Administration Marshall Space Flight Center

    E-Print Network [OSTI]

    storage. Advanced propulsion and power research and development including high power electric propulsion, nuclear thermal propulsion, space nuclear power systems, nuclear surface power systems and propellant-free systems, such as solar sails and electrodynamic tethers. Solid propulsion systems including solid boost

  1. 3739SPACE ALLOCATION/RE-ALLOCATION PROCEDURE Client identifies

    E-Print Network [OSTI]

    Page 1 3739SPACE ALLOCATION/RE-ALLOCATION PROCEDURE Client identifies space requirement Client completes space request form Submit space request form to Space Management Office Space Management Office acknowledge receipt Is space form completed accurately Is there vacant space Space Management Office conduct

  2. Space Instrument Realization (ISR-5)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9MorganYouofSolvingexplore correlation613Space45 Space

  3. Library Reserved Room Policy All Meeting Spaces

    E-Print Network [OSTI]

    Mather, Patrick T.

    Library Reserved Room Policy All Meeting Spaces Room reservation To make a reservation for any Library meeting space, complete the room reservation form at http://library.syr.edu/services/space/form-findroom.php. In order to provide equitable access to library spaces, the Library may impose limitations on frequency

  4. In ThIs Issue Berkeley's Space

    E-Print Network [OSTI]

    Wurtele, Jonathan

    In ThIs Issue Berkeley's Space Sciences Laboratory Tabletop Physics Bringing More Women's Space Sciences Laboratory to explore the physics behind the loss of the Martian atmosphere. It: Lockheed Martin #12;4 Berkeley's Space Sciences Laboratory GoinG on six decAdes of educAtion And spAce

  5. Upper Estimates for Banach Spaces

    E-Print Network [OSTI]

    Freeman, Daniel B.

    2010-10-12T23:59:59.000Z

    We study the relationship of dominance for sequences and trees in Banach spaces. In the context of sequences, we prove that domination of weakly null sequences is a uniform property. More precisely, if $(v_i)$ is a normalized basic sequence and $X...

  6. Space Fission System Test Effectiveness

    SciTech Connect (OSTI)

    Houts, Mike [Los Alamos National Laboratory, MS-K575, Los Alamos, NM 87545 (United States); Schmidt, Glen L. [New Mexico Tech, Institute for Engineering Research and Applications, 901 University Blvd SE, Albuquerque, NM 87109-4339 (United States); Van Dyke, Melissa; Godfroy, Tom; Martin, James; Bragg-Sitton, Shannon; Dickens, Ricky; Salvail, Pat; Harper, Roger [NASA MSFC, TD40, Marshall Space Flight Center, AL, 35812 (United States)

    2004-02-04T23:59:59.000Z

    Space fission technology has the potential to enable rapid access to any point in the solar system. If fission propulsion systems are to be developed to their full potential, however, near-term customers need to be identified and initial fission systems successfully developed, launched, and utilized. One key to successful utilization is to develop reactor designs that are highly testable. Testable reactor designs have a much higher probability of being successfully converted from paper concepts to working space hardware than do designs which are difficult or impossible to realistically test. ''Test Effectiveness'' is one measure of the ability to realistically test a space reactor system. The objective of this paper is to discuss test effectiveness as applied to the design, development, flight qualification, and acceptance testing of space fission systems. The ability to perform highly effective testing would be particularly important to the success of any near-term mission, such as NASA's Jupiter Icy Moons Orbiter, the first mission under study within NASA's Project Prometheus, the Nuclear Systems Program.

  7. Space Science : Atmosphere Greenhouse Effect

    E-Print Network [OSTI]

    Johnson, Robert E.

    Space Science : Atmosphere Greenhouse Effect Part-5a Solar + Earth Spectrum IR Absorbers Grey Atmosphere Greenhouse Effect #12;Radiation: Solar and Earth Surface B"(T) Planck Ideal Emission Integrate at the carbon cycle #12;However, #12;Greenhouse Effect is Complex #12;PLANETARY ENERGY BALANCE G+W fig 3-5

  8. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Christian, Eric

    Security Management Act: Fiscal Year 2010 Report from the Office of Inspector General" (IG-11-005, NovemberNational Aeronautics and Space Administration Office of Inspector General Washington, DC 20546 and China or any Chinese company.1 The NASA Office of Inspector General (OIG) last reported to you regarding

  9. Space Perception by Visuokinesthetic Prediction

    E-Print Network [OSTI]

    Moeller, Ralf

    propose a robot model of space perception in a restricted domain in which a robot arm pushes a small block predicts the visual image of the gripper tool and the kinesthetic state of the robot arm after a small which would move the gripper of the robot arm from its current position to a position where it would

  10. PURDUE EXTENSION Open Space Planning

    E-Print Network [OSTI]

    of runoff from their fields by implementing best manage- ment practices. There is more work to do of direct runoff. Contami- nated storm water can even be filtered through planned open space in the agricultural area with respect to soil erosion and some nutrients, but reduced tillage practices, filter strips

  11. Space Science: Atmosphere Thermal Structure

    E-Print Network [OSTI]

    Johnson, Robert E.

    Space Science: Atmosphere Part -2 Thermal Structure Review tropospheres Absorption of Radiation Adiabatic Lapse Rate ~ 9 K/km Slightly smaller than our estimate Pressure ~3000ft under ocean surface thickness (positive up) is the solar zenith angle Fs is the solar energy flux at frequency (when

  12. Physical space and cosmology. I: Model

    E-Print Network [OSTI]

    Valeriy P. Polulyakh

    2011-02-01T23:59:59.000Z

    The nature of the physical space seems the most important subject in physics. A present paper proceeds from the assumption of physical reality of space contrary to the standard view of the space as a purely relational nonexistence - void. The space and its evolution are the primary sources of phenomena in Mega- and micro-worlds. Thus cosmology and particle physics have the same active agent - physical space.

  13. Before House Committee on Science, Space, and Technology | Department of

    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 DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments fromofBatteries from Brine Batteries fromThermalBeEnergy

  14. Before the House Committee on Science, Space, and Technology | 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 DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments fromofBatteries from BrineBudget Committee Before theofof

  15. Before the House Committee on Science, Space, and Technology | 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 DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments fromofBatteries from BrineBudget Committee Before theofofof

  16. Before the House Committee on Space, Science, and Technology | 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 DataDepartment of Energy Your Density Isn't Your Destiny: The FutureComments fromofBatteries from BrineBudget Committee Before theofofofof

  17. In Situ Measurement of Magnesium Carbonate Formation from CO2 Using Static High-Pressure and -Temperature 13

    E-Print Network [OSTI]

    Skemer, Philip

    ,6 stratigraphic (physically trapped CO2), solubility (CO2 dissolved in the geological brine), hydrodynamic (dissolved CO2 trapped due to slow flow of geological brine), residual (CO2 trapped in pore spaces quantities of these cations in the brine solution and in the minerals present, which are released when the p

  18. Noncommutative Field Theory from Quantum Mechanical Space-Space Noncommutativity

    E-Print Network [OSTI]

    Marcos Rosenbaum; J. David Vergara; L. Roman Juarez

    2007-09-21T23:59:59.000Z

    We investigate the incorporation of space noncommutativity into field theory by extending to the spectral continuum the minisuperspace action of the quantum mechanical harmonic oscillator propagator with an enlarged Heisenberg algebra. In addition to the usual $\\star$-product deformation of the algebra of field functions, we show that the parameter of noncommutativity can occur in noncommutative field theory even in the case of free fields without self-interacting potentials.

  19. Structure of the Space of Diametrically Complete Sets in a Minkowski Space

    E-Print Network [OSTI]

    Schneider, Rolf

    Structure of the Space of Diametrically Complete Sets in a Minkowski Space Jos´e Pedro Moreno and Rolf Schneider Abstract We study the structure of the space of diametrically complete sets in a finite di- mensional normed space. In contrast to the Euclidean case, this space is in general not convex

  20. United Nations Human Space Technology Initiative (HSTI)

    E-Print Network [OSTI]

    Ochiai, M; Steffens, H; Balogh, W; Haubold, H J; Othman, M; Doi, T

    2015-01-01T23:59:59.000Z

    The Human Space Technology Initiative was launched in 2010 within the framework of the United Nations Programme on Space Applications implemented by the Office for Outer Space Affairs of the United Nations. It aims to involve more countries in activities related to human spaceflight and space exploration and to increase the benefits from the outcome of such activities through international cooperation, to make space exploration a truly international effort. The role of the Initiative in these efforts is to provide a platform to exchange information, foster collaboration between partners from spacefaring and non-spacefaring countries, and encourage emerging and developing countries to take part in space research and benefit from space applications. The Initiative organizes expert meetings and workshops annually to raise awareness of the current status of space exploration activities as well as of the benefits of utilizing human space technology and its applications. The Initiative is also carrying out primary ...

  1. Modeling Interfacial Liquid Layers in Environmental Ices SUPPLEMENTARY MATERIAL

    E-Print Network [OSTI]

    Meskhidze, Nicholas

    Symbol Quantity ice wf Fugacity of pure ice brine wf^ Fugacity of water in brine layer vap wf Fugacity of water in vapor space above ice wf Fugacity of pure liquid water wx Mole fraction of water in brine layer ice wH Enthalpy of ice at T, P 0,ice wH Enthalpy of ice at reference state brine wH Partial molar

  2. Nonlinear classification of Banach spaces

    E-Print Network [OSTI]

    Randrianarivony, Nirina Lovasoa

    2005-11-01T23:59:59.000Z

    immediately from here. 24 3. For a subspace Y of X,wehavefZ\\Y;Z 2 cof(X)g cof(Y ). Hence: Y (t)= inf y2S Y sup W2cof(Y ) inf w2W kwk t ky + wk?1 inf y2S Y sup Z2cof(X) inf z2Z\\Y kzk t ky + zk?1 inf y2S Y sup Z2cof(X) inf z2Z kzk t ky + zk?1 inf x2S X sup... characterization of all quasi-Banach spaces that coarsely embed into a Hilbert space. The techniques used here rely on the classical work of Schoenberg [S] regarding the theory of positive and negative de nite kernels; and on the work of Aharoni, Maurey...

  3. Spherical Foams in Flat Space

    E-Print Network [OSTI]

    Carl D. Modes; Randall D. Kamien

    2008-10-31T23:59:59.000Z

    Regular tesselations of space are characterized through their Schlafli symbols {p,q,r}, where each cell has regular p-gonal sides, q meeting at each vertex, and r meeting on each edge. Regular tesselations with symbols {p,3,3} all satisfy Plateau's laws for equilibrium foams. For general p, however, these regular tesselations do not embed in Euclidean space, but require a uniform background curvature. We study a class of regular foams on S^3 which, through conformal, stereographic projection to R^3 define irregular cells consistent with Plateau's laws. We analytically characterize a broad classes of bulk foam bubbles, and extend and explain recent observations on foam structure and shape distribution. Our approach also allows us to comment on foam stability by identifying a weak local maximum of A^(3/2)/V at the maximally symmetric tetrahedral bubble that participates in T2 rearrangements.

  4. Relativity theory in time-space

    E-Print Network [OSTI]

    Ákos G. Horváth

    2014-11-05T23:59:59.000Z

    The concept of time-space defined in an earlier paper of the author is certain generalization of the so-called space-time. In this paper we introduce the concept of time-space manifold. In the homogeneous case, the time-space manifold is a differentiable manifold with such tangent spaces which have certain fixed time-space structure. We redefine the fundamental concepts of global relativity theory with respect to this general situation. We study the concepts of affine connection, parallel transport, curvature tensor and Einstein equation, respectively.

  5. National Aeronautics and Space Administration Space power and energy Storage roadmap

    E-Print Network [OSTI]

    Waliser, Duane E.

    National Aeronautics and Space Administration Space power and energy Storage roadmap Technology's integrated technology roadmap, including both technology pull and technology push strategies, considers is documented in NASA's DRAFT Space Technology Roadmap, an integrated set of fourteen technology area roadmaps

  6. Flags in Space: NASA Symbols and Flags in the U.S. Manned Space Program

    E-Print Network [OSTI]

    Platoff, Anne M.

    Nixes Meatball, Lauds Worm,” Space News, vol. 3, no. 23 (p. 2; “Let the Logo Go,” Space News, vol. 3, no. 23 (6-19Worm,” letters to the editor, Space News, vol. 3, no. 27 (27

  7. Charge Distributions in Transverse Coordinate Space and in Impact Parameter Space

    E-Print Network [OSTI]

    Dae Sung Hwang; Dong Soo Kim; Jonghyun Kim

    2008-05-30T23:59:59.000Z

    We study the charge distributions of the valence quarks inside nucleon in the transverse coordinate space, which is conjugate to the transverse momentum space. We compare the results with the charge distributions in the impact parameter space.

  8. Space elevator systems level analysis

    SciTech Connect (OSTI)

    Laubscher, B. E. (Bryan E.)

    2004-01-01T23:59:59.000Z

    The Space Elevator (SE) represents a major paradigm shift in space access. It involves new, untried technologies in most of its subsystems. Thus the successful construction of the SE requires a significant amount of development, This in turn implies a high level of risk for the SE. This paper will present a systems level analysis of the SE by subdividing its components into their subsystems to determine their level of technological maturity. such a high-risk endeavor is to follow a disciplined approach to the challenges. A systems level analysis informs this process and is the guide to where resources should be applied in the development processes. It is an efficient path that, if followed, minimizes the overall risk of the system's development. systems level analysis is that the overall system is divided naturally into its subsystems, and those subsystems are further subdivided as appropriate for the analysis. By dealing with the complex system in layers, the parameter space of decisions is kept manageable. Moreover, A rational way to manage One key aspect of a resources are not expended capriciously; rather, resources are put toward the biggest challenges and most promising solutions. This overall graded approach is a proven road to success. The analysis includes topics such as nanotube technology, deployment scenario, power beaming technology, ground-based hardware and operations, ribbon maintenance and repair and climber technology.

  9. Magnetic bags in hyperbolic space

    E-Print Network [OSTI]

    Stefano Bolognesi; Derek Harland; Paul Sutcliffe

    2015-04-07T23:59:59.000Z

    A magnetic bag is an abelian approximation to a large number of coincident SU(2) BPS monopoles. In this paper we consider magnetic bags in hyperbolic space and derive their Nahm transform from the large charge limit of the discrete Nahm equation for hyperbolic monopoles. An advantage of studying magnetic bags in hyperbolic space, rather than Euclidean space, is that a range of exact charge N hyperbolic monopoles can be constructed, for arbitrarily large values of N, and compared with the magnetic bag approximation. We show that a particular magnetic bag (the magnetic disc) provides a good description of the axially symmetric N-monopole. However, an abelian magnetic bag is not a good approximation to a roughly spherical N-monopole that has more than N zeros of the Higgs field. We introduce an extension of the magnetic bag that does provide a good approximation to such monopoles and involves a spherical non-abelian interior for the bag, in addition to the conventional abelian exterior.

  10. Large aperture diffractive space telescope

    DOE Patents [OSTI]

    Hyde, Roderick A. (Livermore, CA)

    2001-01-01T23:59:59.000Z

    A large (10's of meters) aperture space telescope including two separate spacecraft--an optical primary objective lens functioning as a magnifying glass and an optical secondary functioning as an eyepiece. The spacecraft are spaced up to several kilometers apart with the eyepiece directly behind the magnifying glass "aiming" at an intended target with their relative orientation determining the optical axis of the telescope and hence the targets being observed. The objective lens includes a very large-aperture, very-thin-membrane, diffractive lens, e.g., a Fresnel lens, which intercepts incoming light over its full aperture and focuses it towards the eyepiece. The eyepiece has a much smaller, meter-scale aperture and is designed to move along the focal surface of the objective lens, gathering up the incoming light and converting it to high quality images. The positions of the two space craft are controlled both to maintain a good optical focus and to point at desired targets which may be either earth bound or celestial.

  11. Magnetic bags in hyperbolic space

    E-Print Network [OSTI]

    Bolognesi, Stefano; Sutcliffe, Paul

    2015-01-01T23:59:59.000Z

    A magnetic bag is an abelian approximation to a large number of coincident SU(2) BPS monopoles. In this paper we consider magnetic bags in hyperbolic space and derive their Nahm transform from the large charge limit of the discrete Nahm equation for hyperbolic monopoles. An advantage of studying magnetic bags in hyperbolic space, rather than Euclidean space, is that a range of exact charge N hyperbolic monopoles can be constructed, for arbitrarily large values of N, and compared with the magnetic bag approximation. We show that a particular magnetic bag (the magnetic disc) provides a good description of the axially symmetric N-monopole. However, an abelian magnetic bag is not a good approximation to a roughly spherical N-monopole that has more than N zeros of the Higgs field. We introduce an extension of the magnetic bag that does provide a good approximation to such monopoles and involves a spherical non-abelian interior for the bag, in addition to the conventional abelian exterior.

  12. From Outer Space to Green Space: An object oriented approach to classifying urban green space in Kuala Lumpur 

    E-Print Network [OSTI]

    Blacker, Stefanie

    2009-11-26T23:59:59.000Z

    The economic, social and environmental benefits of urban green space are increasingly recognized by governments and urban planners. However, efficient methodologies of quantifying and monitoring the state of urban green spaces are needed to keep...

  13. Space Inventory Instructions Campus Planning and Facilities

    E-Print Network [OSTI]

    Cavusoglu, Cenk

    Inventory Instructions Issued by: Campus Planning and Facilities Management Adelbert Hall, room 320 (216 2011 #12;2 | P a g e INTRODUCTION TO SPACE INVENTORY ............................................................................ 3 I. WHY SPACE INVENTORY IS REQUIRED

  14. Scalable Address Spaces Using Rcu Balanced Trees

    E-Print Network [OSTI]

    Clements, Austin T.

    Software developers commonly exploit multicore processors by building multithreaded software in which all threads of an application share a single address space. This shared address space has a cost: kernel virtual memory ...

  15. NASA Creates Space Technology Mission Directorate

    E-Print Network [OSTI]

    drew media attention and articles on 3D printing, including coverage by Popular Mechanics and website on 3D printing and prototyping technology to create parts for the Space Launch System at Marshall Space

  16. Walking and the Reinvention of Space

    E-Print Network [OSTI]

    Topinka, Robert

    2011-04-20T23:59:59.000Z

    Through the figure of the walker, this thesis considers the relationship between rhetoric and space, where rhetoric is understood as embodied, performative action and space is considered both as a material artifact and an ideological production...

  17. Building America Webinar: Retrofitting Central Space Conditioning...

    Energy Savers [EERE]

    Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings - Steam Systems, Retrofit Measure Packages, Hydronic Systems Building America Webinar:...

  18. Space Conditioning Standing Technical Committee Strategic Plan

    Broader source: Energy.gov [DOE]

    This strategic plan document outlines the gaps, barriers, and opportunities identified by the Building America Space Conditioning Standing Technical Committee.

  19. Building America Webinar: Retrofitting Central Space Conditioning...

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

    Introduction Building America Webinar: Retrofitting Central Space Conditioning Strategies for Multifamily Buildings - Introduction This presentation serves as the introduction to...

  20. Mapping densities in a noisy state space

    E-Print Network [OSTI]

    Domenico Lippolis

    2013-03-05T23:59:59.000Z

    Weak noise smooths out fractals in a chaotic state space and introduces a maximum attainable resolution to its structure. The balance of noise and deterministic stretching/contraction in each neighborhood introduces local invariants of the dynamics that can be used to partition the state space. We study the local discrete-time evolution of a density in a two-dimensional hyperbolic state space, and use the asymptotic eigenfunctions for the noisy dynamics to formulate a new state space partition algorithm.

  1. Optimization Online - Vector Space Decomposition for Linear ...

    E-Print Network [OSTI]

    Jean Bertrand Gauthier

    2015-02-26T23:59:59.000Z

    Feb 26, 2015 ... Abstract: This paper describes a vector space decomposition algorithmic framework for linear programming guided by dual feasibility ...

  2. THE KINEMATIC FORMULA IN RIEMANNIAN HOMOGENEOUS SPACES

    E-Print Network [OSTI]

    Howard, Ralph

    THE KINEMATIC FORMULA IN RIEMANNIAN HOMOGENEOUS SPACES Ralph Howard Department of Mathematics)IR (N). This generalizes the Chern-Federer kinematic formula to arbitrary homogeneous spaces with an invariant Riemannian metric and leads to new formulas even in the case of submanifolds of Euclidean space

  3. Earth and Space Sciences Geochemistry 111

    E-Print Network [OSTI]

    Henkel, Werner

    Earth and Space Sciences #12;Geochemistry 111 5 Earth and Space Sciences Research in the realm of Earth and Space Sci- ences focusses on the observation and qualitative and quantitative description of natural phenom- ena on Earth and in the Universe, on the detailed study and experimental and computational

  4. TRAVEL INFORMATION Goddard Institute for Space Studies

    E-Print Network [OSTI]

    for Space Studies New York City The Venue: GISS The NASA Goddard Institute for Space Studies is located the TV program Seinfeld, you may recognize our corner from the exterior shots of the diner where Jerry is a component laboratory of Goddard Space Flight Center's Earth Sciences Division, which is part of GSFC

  5. Partial inner product spaces: Some categorical aspects

    E-Print Network [OSTI]

    J-P. Antoine; D. Lambert; C. Trapani

    2012-03-02T23:59:59.000Z

    We make explicit in terms of categories a number of statements from the theory of partial inner product spaces (PIP spaces) and operators on them. In particular, we construct sheaves and cosheaves of operators on certain PIP spaces of practical interest.

  6. Atomic power in space: A history

    SciTech Connect (OSTI)

    Not Available

    1987-03-01T23:59:59.000Z

    ''Atomic Power in Space,'' a history of the Space Isotope Power Program of the United States, covers the period from the program's inception in the mid-1950s through 1982. Written in non-technical language, the history is addressed to both the general public and those more specialized in nuclear and space technologies. 19 figs., 3 tabs.

  7. Observations and simulations improve space weather models

    E-Print Network [OSTI]

    - 1 - Observations and simulations improve space weather models June 25, 2014 Los Alamos with fast-moving particles and a space weather system that varies in response to incoming energy computer simulations of the space weather that can affect vital technology, communication and navigation

  8. Spherically symmetric monopoles in noncommutative space

    SciTech Connect (OSTI)

    Moreno, E.F. [Departamento de Fisica, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 67, 1900 La Plata (Argentina) and Department of Physics, West Virginia University, Morgantown, West Virginia 26506-6315 (United States)

    2005-08-15T23:59:59.000Z

    We construct a spherically symmetric noncommutative space in three dimensions by foliating the space with concentric fuzzy spheres. We show how to construct a gauge theory in this space, and, in particular, we derive the noncommutative version of a Yang-Mills-Higgs theory. We find numerical monopole solutions of the equations of motion.

  9. Coherent states in the fermionic Fock space

    E-Print Network [OSTI]

    Robert Oeckl

    2015-01-09T23:59:59.000Z

    We construct the coherent states in the sense of Gilmore and Perelomov for the fermionic Fock space. Our treatment is from the outset adapted to the infinite-dimensional case. The fermionic Fock space becomes in this way a reproducing kernel Hilbert space of continuous holomorphic functions.

  10. Special Relativity in Quantum Phase Space

    E-Print Network [OSTI]

    Daniela Dragoman

    2008-03-06T23:59:59.000Z

    A phase space treatment of special relativity of quantum systems is developed. In this approach a quantum particle remains localized if subject to inertial transformations, the localization occurring in a finite phase space area. Unlike non-relativistic transformations, relativistic transformations generally distort the phase space distribution function, being equivalent to aberrations in optics.

  11. EDUCATION AND SKILLS CASE FOR SPACE

    E-Print Network [OSTI]

    THE EDUCATION AND SKILLS CASE FOR SPACE PAUL SPENCER AND GRAHAM HULBERT JUNE 2006 #12;#12;Contents: IMechE Survey 40 References 42 #12;The Education and Skills Case for Space Executive Summary Our survey found that space has a direct, positive effect on educational and career decisions and on participation

  12. TSU Space Program Student Engagement Report

    E-Print Network [OSTI]

    de Lijser, Peter

    TSU Space Program Student Engagement Report FY 2012-2013 Mission Statement The Titan Student Centers Governing Board allocates space in the Titan Student Union each semester to give recognized clubs and organizations space to plan events, conduct small meetings and store club/organization property. Program

  13. GSLIS Space Policy September 29, 2011

    E-Print Network [OSTI]

    Gilbert, Matthew

    GSLIS Space Policy September 29, 2011 The Graduate School of Library and Information Science occupies all of the space in the building at 501 E. Daniel St., and its goal is to maximize the productive use of that space by GSLIS faculty, students, and staff. All GSLIS faculty, staff, and graduate

  14. Divisional Space Review and Development of a

    E-Print Network [OSTI]

    Divisional Space Review and Development of a Master Plan Abbreviated Report: Executive Summary 2009 #12;EXECUTIVE SUMMARY The Space Review Committee was established by Dean Cristina Amon of the Committee for the Divisional Space Review and Development of a Master Plan. Section A provides valuable

  15. Making space for harmonic oscillators

    SciTech Connect (OSTI)

    Michelotti, Leo; /Fermilab

    2004-11-01T23:59:59.000Z

    If we restrict the number of harmonic oscillator energy eigenstates to some finite value, N, then the discrete spectrum of the corresponding position operator comprise the roots of the Hermite polynomial H{sub N+1}. Its range is just large enough to accommodate classical motion at high energy. A negative energy term must be added to the Hamiltonian which affects only the last eigenstate, |N>, suggesting it is concentrated at the extrema of this finite ''space''. Calculations support a conjecture that, in the limit of large N, the global distribution of points approaches the differential form for classical action.

  16. Fractional Inversion in Krylov Space

    E-Print Network [OSTI]

    B. Bunk

    1998-05-28T23:59:59.000Z

    The fractional inverse $M^{-\\gamma}$ (real $\\gamma >0$) of a matrix $M$ is expanded in a series of Gegenbauer polynomials. If the spectrum of $M$ is confined to an ellipse not including the origin, convergence is exponential, with the same rate as for Chebyshev inversion. The approximants can be improved recursively and lead to an iterative solver for $M^\\gamma x = b$ in Krylov space. In case of $\\gamma = 1/2$, the expansion is in terms of Legendre polynomials, and rigorous bounds for the truncation error are derived.

  17. Free-space quantum cryptography

    SciTech Connect (OSTI)

    Hughes, R.J.; Buttler, W.T.; Kwiat, P.G.; Lamoreaux, S.K.; Morgan, G.L.; Nordholt, J.E.; Peterson, C.G.

    1998-12-31T23:59:59.000Z

    An experimental free-space quantum key distribution (QKD) system has been tested over an outdoor optical path of {approximately}1 km under nighttime conditions at Los Alamos National Laboratory. This system employs the Bennett 92 protocol; here the authors give a brief overview of this protocol, and describe the experimental implementation of it. An analysis of the system efficiency is presented, as well as a description of the error detection protocol, which employs a two-dimensional parity check scheme. Finally, the susceptibility of this system to eavesdropping by various techniques is determined. Possible applications include the rekeying of satellites in low earth orbit.

  18. Space Data Systems (ISR-3)

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9MorganYouofSolvingexplore correlation613 Space Data

  19. Space Managment | The Ames Laboratory

    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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What'sis Taking Over Our Instagram Secretary Moniz9MorganYouofSolvingexplore correlation613Space45

  20. Space Week | Department of Energy

    Energy Savers [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 onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directed offOCHCO Overview OCHCO OverviewRepositoryManagement |Solar EnergySouth CarolinaSouthwesternSpace

  1. Solar thermophotovoltaic space power system

    SciTech Connect (OSTI)

    Horne, W.E. (Boeing Aerospace Co., Seattle, WA); Day, A.C. (NASA, Marshall Space Flight Center, Huntsville, AL)

    1980-01-01T23:59:59.000Z

    A study has been performed on the technical feasibility and cost of a TPV system for an alternative space power supply. An analysis of six previous studies has been performed and a consistent optical, thermal, and electrical model developed. A search of the literature for materials data has been augmented by an experimental test program on materials and breadboard subsystems of the TPV. These data have been used in the model to determine the technical feasibility and the degree of performance that might be expected from such a system. A system design study was then conducted to optimize the launch configuration, the weight, and the cost of the TPV space power system. Results from this study were used to define a specific design which could be used in a detailed cost analysis. A cost analysis was then performed to determine the relative costs of the TPV power system. It appears that a system having a specific power greater than 150 W/kg can be produced for approximately 30 dollars per watt.

  2. Reciprocal-space solvent flattening

    SciTech Connect (OSTI)

    Terwilliger, Thomas C., E-mail: terwilliger@lanl.gov [Structural Biology Group, Mail Stop M888, Los Alamos National Laboratory, Los Alamos, NM 87545 (United States)

    1999-11-01T23:59:59.000Z

    A procedure is described for improvement of crystallographic phases by reciprocal-space maximization of a likelihood function including experimental phases and characteristics of the electron-density map. Solvent flattening is a powerful tool for improving crystallographic phases for macromolecular structures obtained at moderate resolution, but uncertainties in the optimal weighting of experimental phases and modified phases make it difficult to extract all the phase information possible. Solvent flattening is essentially an iterative method for maximizing a likelihood function which consists of (i) experimental phase information and (ii) information on the likelihood of various arrangements of electron density in a map, but the likelihood function is generally not explicitly defined. In this work, a procedure is described for reciprocal-space maximization of a likelihood function based on experimental phases and characteristics of the electron-density map. The procedure can readily be applied to phase improvement based on solvent flattening and can potentially incorporate information on a wide variety of other characteristics of the electron-density map.

  3. Can rodents conceive hyperbolic spaces?

    E-Print Network [OSTI]

    Urdapilleta, Eugenio; Stella, Federico; Treves, Alessandro

    2015-01-01T23:59:59.000Z

    The grid cells discovered in the rodent medial entorhinal cortex have been proposed to provide a metric for Euclidean space, possibly even hardwired in the embryo. Yet one class of models describing the formation of grid unit selectivity is entirely based on developmental self-organization, and as such it predicts that the metric it expresses should reflect the environment to which the animal has adapted. We show that, according to self-organizing models, if raised in a non-Euclidean hyperbolic cage rats should be able to form hyperbolic grids. For a given range of grid spacing relative to the radius of negative curvature of the hyperbolic surface, such grids are predicted to appear as multi-peaked firing maps, in which each peak has seven neighbours instead of the Euclidean six, a prediction that can be tested in experiments. We thus demonstrate that a useful universal neuronal metric, in the sense of a multi-scale ruler and compass that remain unaltered when changing environments, can be extended to other t...

  4. Introduction Space-Efficient Karatsuba Space-Efficient FFT-Based Conclusions Fast and Small

    E-Print Network [OSTI]

    Roche, Daniel S.

    Introduction Space-Efficient Karatsuba Space-Efficient FFT-Based Conclusions Fast and Small: Multiplying Polynomials without Extra Space Daniel S. Roche Symbolic Computation Group School of Computer Science University of Waterloo CECM Day SFU, Vancouver, 24 July 2009 #12;Introduction Space

  5. CRAD, Confined Spaces Assessment Plan | Department of Energy

    Energy Savers [EERE]

    spaces. CRAD, Confined Spaces Assessment Plan More Documents & Publications OSS 19.3 Confined Space Entry 52395 DOE-HDBK-11393-2005 FAQS Qualification Card - Industrial Hygiene...

  6. State-space models and methods for MIMO communication

    E-Print Network [OSTI]

    Zhang, Chengjin

    2007-01-01T23:59:59.000Z

    Estimation with State-Space Models . . . . . . . . . . . 2.12.2 State-Space Models for MIMO WirelessEqualization via State- Space Deconvolution . . . . . . 4.1

  7. Space Charge and Equilibrium Emittances in Damping Rings

    E-Print Network [OSTI]

    Venturini, Marco; Oide, Katsunobu; Wolski, Andy

    2006-01-01T23:59:59.000Z

    SPACE CHARGE AND EQUILIBRIUM EMITTANCES IN DAMPING RINGS ?for the pos- sible impact of space charge on the equilibriumrings. INTRODUCTION Direct space charge effects have the

  8. Transoral robotic assisted resection of the parapharyngeal space

    E-Print Network [OSTI]

    Mendelsohn, AH

    2015-01-01T23:59:59.000Z

    of selected para- pharyngeal space tumors. Eur ArchHP, Kim SH. Parapharyngeal space surgery via a transoralof the parapharyngeal space Abie H. Mendelsohn, MD *

  9. Curved Space or Curved Vacuum?

    E-Print Network [OSTI]

    Eric V. Linder

    2005-10-11T23:59:59.000Z

    While the simple picture of a spatially flat, matter plus cosmological constant universe fits current observation of the accelerated expansion, strong consideration has also been given to models with dynamical vacuum energy. We examine the tradeoff of ``curving'' the vacuum but retaining spatial flatness, vs. curving space but retaining the cosmological constant. These different breakdowns in the simple picture could readily be distinguished by combined high accuracy supernovae and cosmic microwave background distance measurements. If we allow the uneasy situation of both breakdowns, the curvature can still be measured to 1%, but at the price of degrading estimation of the equation of state time variation by 60% or more, unless additional information (such as weak lensing data or a tight matter density prior) is included.

  10. Survivable pulse power space radiator

    DOE Patents [OSTI]

    Mims, J.; Buden, D.; Williams, K.

    1988-03-11T23:59:59.000Z

    A thermal radiator system is described for use on an outer space vehicle, which must survive a long period of nonuse and then radiate large amounts of heat for a limited period of time. The radiator includes groups of radiator panels that are pivotally connected in tandem, so that they can be moved to deployed configuration wherein the panels lie largely coplanar, and to a stowed configuration wherein the panels lie in a stack to resist micrometerorite damage. The panels are mounted on a boom which separates a hot power source from a payload. While the panels are stowed, warm fluid passes through their arteries to keep them warm enough to maintain the coolant in a liquid state and avoid embrittlement of material. The panels can be stored in a largely cylindrical shell, with panels progressively further from the boom being of progressively shorter length. 5 figs.

  11. Space nuclear power and man's extraterrestrial civilization

    SciTech Connect (OSTI)

    Angelo, J.J.; Buden, D.

    1983-01-01T23:59:59.000Z

    This paper examines leading space nuclear power technology candidates. Particular emphasis is given the heat-pipe reactor technology currently under development at the Los Alamos National Laboratory. This program is aimed at developing a 10-100 kWe, 7-year lifetime space nuclear power plant. As the demand for space-based power reaches megawatt levels, other nuclear reactor designs including: solid core, fluidized bed, and gaseous core, are considered.

  12. Revisiting the conformal invariance of the scalar field: from Minkowski space to de Sitter space

    E-Print Network [OSTI]

    E. Huguet; J. Queva; J. Renaud

    2008-09-18T23:59:59.000Z

    In this article, we clarify the link between the conformal (i.e. Weyl) correspondence from the Minkowski space to the de Sitter space and the conformal (i.e. SO(2,$d$)) invariance of the conformal scalar field on both spaces. We exhibit the realization on de Sitter space of the massless scalar representation of SO$(2,d)$. It is obtained from the corresponding representation in Minkowski space through an intertwining operator inherited from the Weyl relation between the two spaces. The de Sitter representation is written in a form which allows one to take the point of view of a Minkowskian observer who sees the effect of curvature through additional terms.

  13. A philosophy for space nuclear systems safety

    SciTech Connect (OSTI)

    Marshall, A.C.

    1992-08-01T23:59:59.000Z

    The unique requirements and contraints of space nuclear systems require careful consideration in the development of a safety policy. The Nuclear Safety Policy Working Group (NSPWG) for the Space Exploration Initiative has proposed a hierarchical approach with safety policy at the top of the hierarchy. This policy allows safety requirements to be tailored to specific applications while still providing reassurance to regulators and the general public that the necessary measures have been taken to assure safe application of space nuclear systems. The safety policy used by the NSPWG is recommended for all space nuclear programs and missions.

  14. Sandia National Laboratories: National Aeronautics and Space...

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

    Aeronautics and Space Administration NASA Award for Marginal Ice Zone Observations and Process Experiment (MIZOPEX) On February 24, 2015, in Analysis, Climate, Modeling & Analysis,...

  15. Implicit Multifunction Theorems in complete metric spaces

    E-Print Network [OSTI]

    2010-06-10T23:59:59.000Z

    Implicit Multifunction Theorems in complete metric spaces. Huynh Van Ngai ? Nguyen Huu Tron† and. Michel Théra ‡. Abstract. In this paper, we establish some ...

  16. Space Conditioning Standing Technical Committee Strategic Plan...

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

    Committee Strategic Plan Space Conditioning Standing Technical Committee Strategic Plan This strategic plan document outlines the gaps, barriers, and opportunities identified by...

  17. Transverse Entanglement Migration in Hilbert Space

    E-Print Network [OSTI]

    K. W. Chan; J. P. Torres; J. H. Eberly

    2007-04-18T23:59:59.000Z

    We show that, although the amount of mutual entanglement of photons propagating in free space is fixed, the type of correlations between the photons that determine the entanglement can dramatically change during propagation. We show that this amounts to a migration of entanglement in Hilbert space, rather than real space. For the case of spontaneous parametric down conversion, the migration of entanglement in transverse coordinates takes place from modulus to phase of the bi-photon state and back again. We propose an experiment to observe this migration in Hilbert space and to determine the full entanglement.

  18. Kepler Problem in the Constant Curvature Space

    E-Print Network [OSTI]

    G. Pronko

    2007-06-04T23:59:59.000Z

    We present algebraic derivation of the result of Schr\\"{o}dinger [1] for the spectrum of hydrogen atom in the space with constant curvature.

  19. Building America Expert Meeting: Simplified Space Conditioning...

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

    11, 2011, at the Seaport Hotel in Boston, Massachusetts on the topic of simplified space conditioning systems in low load homes. This meeting provided a forum for...

  20. Gauge Gravity and Space-Time

    E-Print Network [OSTI]

    Ning Wu

    2012-07-11T23:59:59.000Z

    When we discuss problems on gravity, we can not avoid some fundamental physical problems, such as space-time, inertia, and inertial reference frame. The goal of this paper is to discuss the logic system of gravity theory and the problems of space-time, inertia, and inertial reference frame. The goal of this paper is to set up the theory on space-time in gauge theory of gravity. Based on this theory, it is possible for human kind to manipulate physical space-time on earth, and produce a machine which can physically prolong human's lifetime.

  1. University of Washington Learning Space Assessment

    E-Print Network [OSTI]

    Van Volkenburgh, Elizabeth

    needs in light of changing instructional methodologies. The study evaluates utilization rates configuration and size, utilization rates, geographic distribution, management and overall space ownership

  2. Space-time and G_2

    E-Print Network [OSTI]

    Boris Doubrov; Jonathan Holland; George Sparling

    2009-01-05T23:59:59.000Z

    A Weyl structure is a bundle over space-time, whose fiber at each space-time point is a space of maximally isotropic complex tangent planes. We develop the theory of Weyl connections for Weyl structures and show that the requirement that the connection be torsion-free fixes the Weyl connection uniquely. Further we show that to each such Weyl connection, there is naturally associated a (2, 3, 5)-Pfaffian system, as first analyzed by Cartan. We determine the associated G_2-conformal structure and calculate it explicitly in the cases of the Kapadia family of space-times and of the Schwarzschild solution

  3. Building America Webinar: Retrofitting Central Space Conditioning...

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

    of various control strategies to improve hydronic space heating performance in three low-rise multifamily buildings in Cambridge, MA. Presenters showed results from an analysis...

  4. The Space Shuttle and Its Operations 53 Shuttle and

    E-Print Network [OSTI]

    The Space Shuttle and Its Operations 53 The Space Shuttle and Its Operations The Space Shuttle Shuttle Builds the International Space Station #12;The Space Shuttle design was remarkable. The idea Space Telescope through refurbishments. The most impressive product that resulted from the shuttle

  5. Space exploration challenges : characterization and enhancement of space suit mobility and planetary protection policy analysis

    E-Print Network [OSTI]

    Holschuh, Bradley Thomas

    2010-01-01T23:59:59.000Z

    This thesis addresses two challenges associated with advanced space and planetary exploration: characterizing and improving the mobility of current and future gas pressurized space suits; and developing effective domestic ...

  6. Phase Space Navigator: Towards Automating Control Synthesis in Phase Spaces for Nonlinear Control Systems

    E-Print Network [OSTI]

    Zhao, Feng

    1991-04-01T23:59:59.000Z

    We develop a novel autonomous control synthesis strategy called Phase Space Navigator for the automatic synthesis of nonlinear control systems. The Phase Space Navigator generates global control laws by synthesizing ...

  7. Design principles for the development of space technology maturation laboratories aboard the International Space Station

    E-Print Network [OSTI]

    Saenz Otero, Alvar, 1975-

    2005-01-01T23:59:59.000Z

    This thesis formulates seven design principles for the development of laboratories which utilize the International Space Station (ISS) to demonstrate the maturation of space technologies. The principles are derived from ...

  8. Space Logistics Modeling and Simulation Analysis using SpaceNet: Four Application Cases

    E-Print Network [OSTI]

    Grogan, Paul Thomas

    The future of space exploration will not be limited to sortie-style missions to single destinations. Even in present exploration taking place at the International Space Station in low-Earth orbit, logistics is complicated ...

  9. Sensitivity of risk parameters to component unavailability in reactor safety study (PSAP/PSAB computer codes). [PWR; BWR

    SciTech Connect (OSTI)

    Azarm, M.; Farahzad, P.; Tingle, A.

    1982-06-01T23:59:59.000Z

    The Probabilistic Sensitivity Analysis for Pressurized and Boiling Water Reactors (PSAP/PSAB) codes have been developed to update the WASH-1400 conclusions. The initial effort, reported in NUREG/CR-1879 Sensitivity of Risk Parameters to Human Errors in Reactor Safety Study for a PWR, concentrated on developing a code for system sensitivity to human errors based on an expanded version of the PWR fault trees from the Reactor Safety Study (RSS). The success of that effort and the insights gained from the code's use initiated the development of the PSAP/PSAB codes. The two codes allow the user to evaluate the impact of new data and system models on the conclusions drawn in WASH-1400. They are designed to be fast running and modular so that detailed sensitivity studies can be run efficiently.

  10. KALMAN FILTERING REPRODUCING KERNEL HILBERT SPACES

    E-Print Network [OSTI]

    Slatton, Clint

    KALMAN FILTERING IN REPRODUCING KERNEL HILBERT SPACES Pingping Zhu #12;Outline · Introduction · Related Work · A Novel Extended Kernel Recursive Least Squares · Kernel Kalman Filter based on Conditional · Develop a Kalman filter in the Reproducing kernel Hilbert space (RKHS) Motivation · Kernel methods can

  11. Rigged Hilbert spaces for chaotic dynamical systems

    SciTech Connect (OSTI)

    Suchanecki, Z. [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium)] [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium); [Hugo Steinhaus Center and Institute of Mathematics, Wrocl/aw Technical University, ul. Wybrzeze Wyspianskiego 27, 50-370 Wroclaw (Poland); Antoniou, I. [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium)] [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium); [Theoretische Natuurkunde Free University of Brussels; Tasaki, S. [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels, Belgium and] [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels, Belgium and; [Institute for Fundamental Chemistry 34-4 Takano Nishihiraki-cho Kyoto 606 (Japan); Bandtlow, O.F. [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium)] [International Solvay Institutes for Physics and Chemistry, CP 231, Campus Plaine ULB, Bd. du Triomphe, 1050 Brussels (Belgium); [Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB30HE (United Kingdom)

    1996-11-01T23:59:59.000Z

    We consider the problem of rigging for the Koopman operators of the Renyi and the baker maps. We show that the rigged Hilbert space for the Renyi maps has some of the properties of a strict inductive limit and give a detailed description of the rigged Hilbert space for the baker maps. {copyright} {ital 1996 American Institute of Physics.}

  12. DREAM tool increases space weather predictions

    E-Print Network [OSTI]

    - 1 - DREAM tool increases space weather predictions April 13, 2012 Predicting space weather improved by new DREAM modeling tool Earth's radiation belts can now be studied with a new modeling tool DREAM comes into play. Radiation belt structure and dynamics revealed DREAM is a modeling tool

  13. National Aeronautics and Space Administration Sun

    E-Print Network [OSTI]

    Christian, Eric

    National Aeronautics and Space Administration Sun #12;National Aeronautics and Space Administration), which is suf- ficient to sustain thermonuclear fusion reactions. The released energy pre- vents. In addition to the energy-producing solar core, the interior has two distinct regions: a radiative zone

  14. Phase Space Constraints on Neutrino Luminosities

    E-Print Network [OSTI]

    C. Sivaram; Kenath Arun; Samartha C A

    2007-06-29T23:59:59.000Z

    While the importance of phase space constraints for gravitational clustering of neutrinos (which are fermions) is well recognized, the explicit use of such constraints to limit neutrino emission from ultra energetic sources has not been stressed. Special and general relativistic phase space constraints are shown to limit neutrino luminosities in compact sources in various situations.

  15. Basis adaptation in homogeneous chaos spaces

    SciTech Connect (OSTI)

    Tipireddy, Ramakrishna, E-mail: tipiredd@usc.edu [Computational Mathematics Department, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352 (United States)] [Computational Mathematics Department, Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352 (United States); Ghanem, Roger, E-mail: ghanem@usc.edu [210 KAP Hall, University of Southern California, Los Angeles, CA 90089 (United States)] [210 KAP Hall, University of Southern California, Los Angeles, CA 90089 (United States)

    2014-02-15T23:59:59.000Z

    We present a new method for the characterization of subspaces associated with low-dimensional quantities of interest (QoI). The probability density function of these QoI is found to be concentrated around one-dimensional subspaces for which we develop projection operators. Our approach builds on the properties of Gaussian Hilbert spaces and associated tensor product spaces.

  16. Active Open Space (playing fields) in a

    E-Print Network [OSTI]

    environmental and social benefits, the unintended consequence of implementing Bush Forever, Water Sensitive of the fringe growth sub- regions of Perth already have a shortage of active playing fields. The research as Regional Open Space, this shortage can only get worse. Background Open space is an inherent part

  17. OFFER TO LEASE SPACE IN RESPONSE TO

    E-Print Network [OSTI]

    . OTHER 1b. BUILDING ADDRESS sq. ft sq. ft sq. ft 1c. CITY 1d. STATE 4. LIVE FLOOR LOAD 5. MEASUREMENT _______________ - ____________ lbs./sq. ft SECTION II - SPACE OFFERED AND RATES INITIAL TERM RENEWAL OPTION TYPE OF SPACE FLOOR Full(F)/Partial

  18. PROPOSAL TO LEASE SPACE IN RESPONSE TO

    E-Print Network [OSTI]

    . OTHER 1b. BUILDING ADDRESS sq. ft sq. ft sq. ft 1c. CITY 1d. STATE 4. LIVE FLOOR LOAD 5. MEASUREMENT ___ ___ ___ ___ ___ - ___ ___ ___ ___ lbs./sq. ft SECTION II - SPACE OFFERED AND RATES INITIAL TERM RENEWAL OPTION TYPE OF SPACE FLOOR Full(F)/Partial

  19. Space of Valuations March 14, 2008

    E-Print Network [OSTI]

    Coquand, Thierry

    Space of Valuations March 14, 2008 Introduction The general framework of this paper objects are represented by points of such a formal space. There are general methods to "eliminate" the use. This paper illustrates further this general program on the notion of valuations. They were introduced

  20. Research in Space 2013 and Beyond

    E-Print Network [OSTI]

    growth and test beds Earth and Space Science: Radiation, thermal, solar, geophysics and Earth Earth orbit to other destinations in our solar system. This orbiting laboratory is our species largest Center S.P.Korolev Rocket and Space Corporation Energia Mr. Jean Sabbagh National & International

  1. theearthobserver National Aeronautics and Space Administration

    E-Print Network [OSTI]

    theearthobserver National Aeronautics and Space Administration The Earth Observer. July - August Once in orbit, the solar arrays successfully deployed, two-way communication with the satellite the Tanegashima Space Center in Tanegashima, Japan. To learn more about GPM read GPM Core Observatory: Advancing

  2. Supersymmetric Field Theories on Noncommutative Spaces

    E-Print Network [OSTI]

    Yoshinobu Habara

    2002-05-07T23:59:59.000Z

    Supersymmetric field theories on noncommutative spaces are constructed. We present two different representations of noncommutative space, but we can obtain supersymmetry algebla and supersymmetric Yang-Mills action independent of its representation. As a result, we will see that the action has a close relationship with IIB matrix model.

  3. On statistical mechanics in noncommutative spaces

    E-Print Network [OSTI]

    S. A. Alavi

    2007-09-26T23:59:59.000Z

    We study the formulation of quantum statistical mechanics in noncommutative spaces. We construct microcanonical and canonical ensemble theory in noncommutative spaces. We consider for illustration some basic and important examples in the framework of noncommutative statistical mechanics : (i). An electron in a magnetic field. (ii). A free particle in a box. (iii). A linear harmonic oscillator.

  4. Collision Avoidance in Depth Space I. INTRODUCTION

    E-Print Network [OSTI]

    De Luca, Alessandro

    ; compute distances between the obstacles and the robot; optionally project the results in the CartesianCollision Avoidance in Depth Space I. INTRODUCTION When humans and robots share the same work space, safety is the primary issue of concern [8]. Secondary but not negligible is to prevent robot damages due

  5. Visualizing quantum mechanics in phase space

    E-Print Network [OSTI]

    Heiko Bauke; Noya Ruth Itzhak

    2011-01-11T23:59:59.000Z

    We examine the visualization of quantum mechanics in phase space by means of the Wigner function and the Wigner function flow as a complementary approach to illustrating quantum mechanics in configuration space by wave functions. The Wigner function formalism resembles the mathematical language of classical mechanics of non-interacting particles. Thus, it allows a more direct comparison between classical and quantum dynamical features.

  6. The Angular Momentum-Energy Space

    E-Print Network [OSTI]

    Dan Comanescu

    2007-02-09T23:59:59.000Z

    In this paper we shall define and study the angular momentum-energy space for the classical problem of plane-motions of a particle situated in a potential field of a central force. We shall present the angular momentum-energy space for some important cases.

  7. Homological algebra in categories of Banach spaces

    E-Print Network [OSTI]

    Brown, April D.

    1999-01-01T23:59:59.000Z

    In this paper I wish to develop basic algebraic concepts, category theory, and homology theory in the world of Banach spaces. We begin by defining such terms as morphisms and exact sequences, and considering what these terms mean in Banach spaces...

  8. Field Equations in the Complex Quaternion Spaces

    E-Print Network [OSTI]

    Zi-Hua Weng

    2015-04-06T23:59:59.000Z

    The paper aims to adopt the complex quaternion and octonion to formulate the field equations for electromagnetic and gravitational fields. Applying the octonionic representation enables one single definition to combine some physics contents of two fields, which were considered to be independent of each other in the past. J. C. Maxwell applied simultaneously the vector terminology and the quaternion analysis to depict the electromagnetic theory. This method edified the paper to introduce the quaternion and octonion spaces into the field theory, in order to describe the physical feature of electromagnetic and gravitational fields, while their coordinates are able to be the complex number. The octonion space can be separated into two subspaces, the quaternion space and the S-quaternion space. In the quaternion space, it is able to infer the field potential, field strength, field source, field equations, and so forth, in the gravitational field. In the S-quaternion space, it is able to deduce the field potential, field strength, field source, and so forth, in the electromagnetic field. The results reveal that the quaternion space is appropriate to describe the gravitational features; meanwhile the S-quaternion space is proper to depict the electromagnetic features.

  9. Chapter 2 -Confined Space Entry Certain environmental conditions within a confined space pose special dangers for

    E-Print Network [OSTI]

    . Limited OR restricted means for entry or exit; and 3. Not designed for continuous employee occupancy. #1217 Chapter 2 - Confined Space Entry Policy Certain environmental conditions within a confined space taken to ensure a safe environment. Responsibilities Safe entry into a confined space is the joint

  10. National Aeronautics and Space Administration International Space Station Photosynth Scavenger Hunt

    E-Print Network [OSTI]

    .nasa.gov INTERNATIONAL SPACE STATION (ISS) INTERACTIVE REFERENCE GUIDE National Aeronautics and Space Administration U and outfitting Exterior Aluminum, 3 cylindrical sec- tions, 2 endcones Number of racks 24 (13 scientific and 11-98 Module in preparation at Marshall Space Flight Center (MSFC). #12;

  11. The Space Power Grid: Synergy Between Space, Energy and Security Policies

    E-Print Network [OSTI]

    @gatech.edu Abstract - The dream of abundant solar-powered electricity from Space can be realized through global ­ Space solar power, renewable energy, climate policy, global warming, infrastructure, power grid electric power can be generated "24/365" in Space, and conveyed down to Earth. Many concepts have been

  12. Radiation Effects in the Space Telecommunications Environment

    SciTech Connect (OSTI)

    Fleetwood, Daniel M.; Winokur, Peter S.

    1999-05-17T23:59:59.000Z

    Trapped protons and electrons in the Earth's radiation belts and cosmic rays present significant challenges for electronics that must operate reliably in the natural space environment. Single event effects (SEE) can lead to sudden device or system failure, and total dose effects can reduce the lifetime of a telecommmiications system with significant space assets. One of the greatest sources of uncertainty in developing radiation requirements for a space system is accounting for the small but finite probability that the system will be exposed to a massive solar particle event. Once specifications are decided, standard laboratory tests are available to predict the total dose response of MOS and bipolar components in space, but SEE testing of components can be more challenging. Prospects are discussed for device modeling and for the use of standard commercial electronics in space.

  13. Pseudo-Z symmetric space-times

    SciTech Connect (OSTI)

    Mantica, Carlo Alberto, E-mail: carloalberto.mantica@libero.it [Physics Department, Università degli Studi di Milano, Via Celoria 16, 20133 Milano (Italy); Suh, Young Jin, E-mail: yjsuh@knu.ac.kr [Department of Mathematics, Kyungpook National University, Taegu 702-701 (Korea, Republic of)

    2014-04-15T23:59:59.000Z

    In this paper, we investigate Pseudo-Z symmetric space-time manifolds. First, we deal with elementary properties showing that the associated form A{sub k} is closed: in the case the Ricci tensor results to be Weyl compatible. This notion was recently introduced by one of the present authors. The consequences of the Weyl compatibility on the magnetic part of the Weyl tensor are pointed out. This determines the Petrov types of such space times. Finally, we investigate some interesting properties of (PZS){sub 4} space-time; in particular, we take into consideration perfect fluid and scalar field space-time, and interesting properties are pointed out, including the Petrov classification. In the case of scalar field space-time, it is shown that the scalar field satisfies a generalized eikonal equation. Further, it is shown that the integral curves of the gradient field are geodesics. A classical method to find a general integral is presented.

  14. The Fourier Transform on Quantum Euclidean Space

    E-Print Network [OSTI]

    Kevin Coulembier

    2011-05-11T23:59:59.000Z

    We study Fourier theory on quantum Euclidean space. A modified version of the general definition of the Fourier transform on a quantum space is used and its inverse is constructed. The Fourier transforms can be defined by their Bochner's relations and a new type of q-Hankel transforms using the first and second q-Bessel functions. The behavior of the Fourier transforms with respect to partial derivatives and multiplication with variables is studied. The Fourier transform acts between the two representation spaces for the harmonic oscillator on quantum Euclidean space. By using this property it is possible to define a Fourier transform on the entire Hilbert space of the harmonic oscillator, which is its own inverse and satisfies the Parseval theorem.

  15. Space-time defects and teleparallelism

    E-Print Network [OSTI]

    J. W. Maluf; A. Goya

    2001-10-24T23:59:59.000Z

    We consider the class of space-time defects investigated by Puntigam and Soleng. These defects describe space-time dislocations and disclinations (cosmic strings), and are in close correspondence to the actual defects that arise in crystals and metals. It is known that in such materials dislocations and disclinations require a small and large amount of energy, respectively, to be created. The present analysis is carried out in the context of the teleparallel equivalent of general relativity (TEGR). We evaluate the gravitational energy of these space-time defects in the framework of the TEGR and find that there is an analogy between defects in space-time and in continuum material systems: the total gravitational energy of space-time dislocations and disclinations (considered as idealized defects) is zero and infinit, respectively.

  16. Entanglement renormalization in free bosonic systems: real-space versus momentum-space renormalization group transforms

    E-Print Network [OSTI]

    G. Evenbly; G. Vidal

    2010-03-05T23:59:59.000Z

    The ability of entanglement renormalization (ER) to generate a proper real-space renormalization group (RG) flow in extended quantum systems is analysed in the setting of harmonic lattice systems in D=1 and D=2 spatial dimensions. A conceptual overview of the steps involved in momentum-space RG is provided and contrasted against the equivalent steps in the real-space setting. The real-space RG flow, as generated by ER, is compared against the exact results from momentum-space RG, including an investigation of a critical fixed point and the effect of relevant and irrelevant perturbations.

  17. Quantum tomography with wavelet transform in Banach space on Homogeneous space

    E-Print Network [OSTI]

    M. A. Jafarizadeh; M. Mirzaee; M. Rezaee

    2008-01-25T23:59:59.000Z

    The intimate connection between the Banach space wavelet reconstruction method on homogeneous spaces with both singular and nonsingular vacuum vectors, and some of well known quantum tomographies, such as: Moyal-representation for a spin, discrete phase space tomography, tomography of a free particle, Homodyne tomography, phase space tomography and SU(1,1) tomography is explained. Also both the atomic decomposition and banach frame nature of these quantum tomographic examples is explained in details. Finally the connection between the wavelet formalism on Banach space and Q-function is discussed.

  18. Physical Vacuum Properties and Internal Space Dimension

    E-Print Network [OSTI]

    M. V. Gorbatenko; A. V. Pushkin

    2004-09-25T23:59:59.000Z

    The paper addresses matrix spaces, whose properties and dynamics are determined by Dirac matrices in Riemannian spaces of different dimension and signature. Among all Dirac matrix systems there are such ones, which nontrivial scalar, vector or other tensors cannot be made up from. These Dirac matrix systems are associated with the vacuum state of the matrix space. The simplest vacuum system realization can be ensured using the orthonormal basis in the internal matrix space. This vacuum system realization is not however unique. The case of 7-dimensional Riemannian space of signature 7(-) is considered in detail. In this case two basically different vacuum system realizations are possible: (1) with using the orthonormal basis; (2) with using the oblique-angled basis, whose base vectors coincide with the simple roots of algebra E_{8}. Considerations are presented, from which it follows that the least-dimension space bearing on physics is the Riemannian 11-dimensional space of signature 1(-)& 10(+). The considerations consist in the condition of maximum vacuum energy density and vacuum fluctuation energy density.

  19. Metastring Theory and Modular Space-time

    E-Print Network [OSTI]

    Laurent Freidel; Robert G. Leigh; Djordje Minic

    2015-02-27T23:59:59.000Z

    String theory is canonically accompanied with a space-time interpretation which determines S-matrix-like observables, and connects to the standard physics at low energies in the guise of local effective field theory. Recently, we have introduced a reformulation of string theory which does not rely on an {\\it a priori} space-time interpretation or a pre-assumption of locality. This \\hlt{metastring theory} is formulated in such a way that stringy symmetries (such as T-duality) are realized linearly. In this paper, we study metastring theory on a flat background and develop a variety of technical and interpretational ideas. These include a formulation of the moduli space of Lorentzian worldsheets, a careful study of the symplectic structure and consequently consistent closed and open boundary conditions, and the string spectrum and operator algebra. What emerges from these studies is a new quantum notion of space-time that we refer to as a quantum Lagrangian or equivalently a \\hlt{modular space-time}. This concept embodies the standard tenets of quantum theory and implements in a precise way a notion of {relative locality}. The usual string backgrounds (non-compact space-time along with some toroidally compactified spatial directions) are obtained from modular space-time by a limiting procedure that can be thought of as a correspondence limit.

  20. Deriving time from the geometry of space

    E-Print Network [OSTI]

    James M. Chappell; John G. Hartnett; Nicolangelo Iannella; Derek Abbott

    2015-04-08T23:59:59.000Z

    The Minkowski formulation of special relativity reveals the essential four-dimensional nature of spacetime, consisting of three space and one time dimension. Recognizing its fundamental importance, a variety of arguments have been proposed over the years attempting to derive the Minkowski spacetime structure from fundamental physical principles. In this paper we illustrate how Minkowski spacetime follows naturally from the geometric properties of three dimensional Clifford space modeled with multivectors. This approach also generalizes spacetime to an eight dimensional space as well as doubling the size of the Lorentz group. This description of spacetime also provides a new geometrical interpretation of the nature of time.

  1. Relativity of Space-Time Geometry

    E-Print Network [OSTI]

    L. V. Verozub

    1996-06-14T23:59:59.000Z

    We argue that space-time geometry is not absolute with respect to the frame of reference being used. The space-time metric differential form $ds$ in noninertial frames of reference (NIFR) is caused by the properties of the used frames in accordance with the Berkley - Leibnitz - Mach - Poincar\\'{e} ideas about relativity of space and time . It is shown that the Sagnac effect and the existence of inertial forces in NIFR can be considered from this point of view. An experimental test is proposed.

  2. Fixed point theorems in ultrametric spaces 

    E-Print Network [OSTI]

    Fullbright, Steven Edward

    1972-01-01T23:59:59.000Z

    ) . The condition is related to the range of the metric d. The following notations will be employed in the sequel: the empty set; R, the set of real numbers; the set of rational numbers; N, the set of positive integers. The citations on this and the following... ) is an ultrametric space. We shall henceforth p p denote this space by Q p We show that Q is not a complete space. Let q c Q . Then P P n the sequence (q + p ) converges to q, and therefore Q (q) P is not closed. Since Q (q) is not closed, the set (q} is not P...

  3. Doppler effect of time and space

    E-Print Network [OSTI]

    Giovanni Zanella

    2012-08-30T23:59:59.000Z

    This paper shows as the relativistic Doppler effect can be extended also to time and space associated to moving bodies. This extension derives from the analysis of the wave-fronts of the light emitted by a moving source in inertial motion in the empty space, as viewed from the stationary reference. Indeed, time and space can be represented by the same vector quantities, which appear asymmetrical in forward and back direction along the path of the moving body. Consequently, the whole size of the moving bodies dilates along the direction of their motion, as their path. Thought experiments and real facts demonstrate this issue.

  4. Noncommutative field theory from twisted Fock space

    SciTech Connect (OSTI)

    Bu, Jong-Geon; Kim, Hyeong-Chan; Lee, Youngone; Vac, Chang Hyon; Yee, Jae Hyung [Department of Physics, Yonsei University, Seoul (Korea, Republic of)

    2006-06-15T23:59:59.000Z

    We construct a quantum field theory in noncommutative space time by twisting the algebra of quantum operators (especially, creation and annihilation operators) of the corresponding quantum field theory in commutative space time. The twisted Fock space and S-matrix consistent with this algebra have been constructed. The resultant S-matrix is consistent with that of Filk [Tomas Filk, Phys. Lett. B 376, 53 (1996).]. We find from this formulation that the spin-statistics relation is not violated in the canonical noncommutative field theories.

  5. Eddy current measurement of tube element spacing

    DOE Patents [OSTI]

    Latham, Wayne Meredith (Forest, VA); Hancock, Jimmy Wade (Lynchburg, VA); Grut, Jayne Marie (Madison Heights, VA)

    1998-01-01T23:59:59.000Z

    A method of electromagnetically measuring the distance between adjacent tube elements in a heat exchanger. A cylindrical, high magnetic permeability ferrite slug is placed in the tube adjacent the spacing to be measured. A bobbin or annular coil type probe operated in the absolute mode is inserted into a second tube adjacent the spacing to be measured. From prior calibrations on the response of the eddy current coil, the signals from the coil, when sensing the presence of the ferrite slug, are used to determine the spacing between the tubes.

  6. State of Spacef p State of Space 2009

    E-Print Network [OSTI]

    Van Volkenburgh, Elizabeth

    State of Spacef p 2009 State of Space 2009 DRAFT ­ For Discussion Only #12;UW Space throughout the World Owned or Leased State of Space 2009 DRAFT ­ For Discussion Only *Space recorded with the Office of Planning & Budgeting or the Real Estate Office #12;UW Space throughout the United States Owned or Leased

  7. Small Space Heater Basics | Department of Energy

    Energy Savers [EERE]

    10,000 Btu to 40,000 Btu per hour. Common fuels used for this purpose are electricity, propane, natural gas, and kerosene. Although most space heaters rely on convection (the...

  8. Usability of Outdoor Spaces in Children's Hospitals 

    E-Print Network [OSTI]

    Pasha, Samira

    2012-07-16T23:59:59.000Z

    Researchers have studied the positive effect of healing outdoor environments on hospitalized children, their family members and staff's health and mood. Consequently many modern hospitals dedicate portions of their space ...

  9. PUPIL : constructing the space of visual attention

    E-Print Network [OSTI]

    Kassner, Moritz Philipp

    2012-01-01T23:59:59.000Z

    This thesis explores the nature of a human experience in space through a primary inquiry into vision. This inquiry begins by questioning the existing methods and instruments employed to capture and represent a human ...

  10. Analysis on q-deformed quantum spaces

    E-Print Network [OSTI]

    Hartmut Wachter

    2006-04-13T23:59:59.000Z

    A q-deformed version of classical analysis is given to quantum spaces of physical importance, i.e. Manin plane, q-deformed Euclidean space in three or four dimensions, and q-deformed Minkowski space. The subject is presented in a rather complete and selfcontained way. All relevant notions are introduced and explained in detail. The different possibilities to realize the objects of q-deformed analysis are discussed and their elementary properties are studied. In this manner attention is focused on star products, q-deformed tensor products, q-deformed translations, q-deformed partial derivatives, dual pairings, q-deformed exponentials, and q-deformed integration. The main concern of this work is to show that these objects fit together in a consistent framework, which is suitable to formulate physical theories on quantum spaces.

  11. Bimanual cross-coupling in space telerobotics

    E-Print Network [OSTI]

    Wang, Victor, S.M. Massachusetts Institute of Technology

    2012-01-01T23:59:59.000Z

    Astronauts spend much time training to control the robotic arm aboard the International Space Station, and must perform a variety of challenging, three-dimensional tasks. They use a unique, bimanual control system to control ...

  12. National Aeronautics and Space Administration November 2010

    E-Print Network [OSTI]

    and prioritization of NASA's space technology activities. This document presents the DRAFT Technology Area 08 input, as well as any other particles, electromagnetic fields, both DC and AC, acoustic energy, seismic energy

  13. Spacing innovation and learning in design organizations

    E-Print Network [OSTI]

    García Herrera, Cristóbal, 1974-

    2004-01-01T23:59:59.000Z

    The main research question of this thesis is the following: What is the relationship between spaces and innovation in the context of design organizations such as IDEO, the MIT Media Lab and Design Continuum? This thesis ...

  14. Radon Transform in Finite Dimensional Hilbert Space

    E-Print Network [OSTI]

    M. Revzen

    2012-02-06T23:59:59.000Z

    Novel analysis of ?nite dimensional Hilbert space is outlined. The approach bypasses general, inherent, di?culties present in handling angular variables in ?nite dimensional problems: The ?nite dimensional, d, Hilbert space operators are underpinned with ?nite geometry which provide intuitive perspective to the physical operators. The analysis emphasizes a central role for projectors of mutual unbiased bases (MUB) states, extending thereby their use in ?nite dimensional quantum mechanics studies. Interrelation among the Hilbert space operators revealed via their (?nite) dual a?ne plane geometry (DAPG) underpinning are displayed and utilized in formulating the ?nite dimensional ubiquitous Radon transformation and its inverse illustrating phase space-like physics encoded in lines and points of the geometry. The ?nite geometry required for our study is outlined.

  15. A charm that has been in space

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

    charm that has been in space Carolyn Gooch called to say that she wanted me to stop by her house that she had something to donate to the Y-12 History Center. I knew what it was....

  16. Cargo revenue management for space logistics

    E-Print Network [OSTI]

    Armar, Nii A

    2009-01-01T23:59:59.000Z

    This thesis covers the development of a framework for the application of revenue management, specifically capacity control, to space logistics for use in the optimization of mission cargo allocations, which in turn affect ...

  17. ASTRONAUTICS & SPACE ASTE OVERVIEW PROGRAMS AVAILABLE

    E-Print Network [OSTI]

    Rohs, Remo

    FLOWCHARTS Astronautical engineers design, build and operate space vehicles used in exploration of molecular interaction, and reconfigurable autonomous robots. PROGRAMS AVAILABLE Astronautical Engineering. Liquid- and solid-fueled rockets. Nuclear and electric propulsion. (Duplicates credit in former AME 473

  18. Open Space Stewardship Program 2013 Celebration

    Broader source: Energy.gov [DOE]

    Students in grades K through 12 are involved in authentic environmental research on properties in their own communities, fostering a sense of ownership and responsibility for open space within...

  19. Virtual tour: INL's space battery facility

    SciTech Connect (OSTI)

    Johnson, Steve

    2011-01-01T23:59:59.000Z

    This virtual tour shows how INL fuels and tests nuclear power systems for deep space missions. To learn more about INL's contribution to the Mars Science Laboratory, visit http://www.inl.gov/marsrover.

  20. Open Space Stewardship Workshop for Secondary Teachers

    Broader source: Energy.gov [DOE]

    This practical, hands-on workshop provides an opportunity to experience the equipment and field techniques that are useful in Open Space Stewardship Program. The four day workshop (July 15-19 2013)...

  1. Virtual tour: INL's space battery facility

    ScienceCinema (OSTI)

    Johnson, Steve

    2013-05-28T23:59:59.000Z

    This virtual tour shows how INL fuels and tests nuclear power systems for deep space missions. To learn more about INL's contribution to the Mars Science Laboratory, visit http://www.inl.gov/marsrover.

  2. "Dark energy" as conformal dynamics of space

    E-Print Network [OSTI]

    D. Burlankov

    2006-10-23T23:59:59.000Z

    The exact solution for dynamic of conform-flat space homogeneous since dynamic equation is given. Conform mode of space metric changing in Global time theory has negative energy density. Swap of energy to this mode from another ones lead to increasing of Universe homogeneity although probability of this swap from local objects is negligibly small. Conform mode is corresponding to "dark energy" in observation astronomy.

  3. Chiral gap effect in curved space

    E-Print Network [OSTI]

    Antonino Flachi; Kenji Fukushima

    2014-06-25T23:59:59.000Z

    We discuss a new type of QCD phenomenon induced in curved space. In the QCD vacuum a mass gap of Dirac fermions is attributed to the spontaneous breaking of chiral symmetry. If the curvature is positive large, the chiral condensate melts but a chiral invariant mass gap can still remain, which we name the chiral gap effect in curved space. This leads to decoupling of quark deconfinement which implies a view of black holes surrounded by a first-order QCD phase transition.

  4. Optimum phase space probabilities from quantum tomography

    SciTech Connect (OSTI)

    Roy, Arunabha S., E-mail: roy.arunabha@gmail.com [King's College, London (United Kingdom); Roy, S. M., E-mail: smroy@hbcse.tifr.res.in [HBCSE, Tata Institute of Fundamental Research, Mumbai (India)

    2014-01-15T23:59:59.000Z

    We determine a positive normalised phase space probability distribution P with minimum mean square fractional deviation from the Wigner distribution W. The minimum deviation, an invariant under phase space rotations, is a quantitative measure of the quantumness of the state. The positive distribution closest to W will be useful in quantum mechanics and in time frequency analysis. The position-momentum correlations given by the distribution can be tested experimentally in quantum optics.

  5. Ramanujan's Master Theorem for Riemannian symmetric spaces

    E-Print Network [OSTI]

    Olafsson, Gestur

    2011-01-01T23:59:59.000Z

    Ramanujan's Master theorem states that, under suitable conditions, the Mellin transform of a power series provides an interpolation formula for the coefficients of this series. Based on the duality of Riemannian symmetric spaces of compact and noncompact type inside a common complexification, we prove an analogue of Ramanujan's Master Theorem for the spherical Fourier transform of a spherical Fourier series. This extend the results proven by Bertram for Riemannian symmetric spaces of rank-one.

  6. State visibility in Q-bit space

    E-Print Network [OSTI]

    A. F. Kracklauer

    2007-03-04T23:59:59.000Z

    We study by comparison the structure of singlet type states in Q-bit space in the light of quantum and classical paradigms. It is shown that only the classical paradigm implies a variation in the visibility of correlation coefficients, that has been observed in fact in experiments. We conclude that Q-bit space in not a appropriate venue for an EPR test of quantum completeness.

  7. Small Reactor for Deep Space Exploration

    SciTech Connect (OSTI)

    None

    2012-11-29T23:59:59.000Z

    This is the first demonstration of a space nuclear reactor system to produce electricity in the United States since 1965, and an experiment demonstrated the first use of a heat pipe to cool a small nuclear reactor and then harvest the heat to power a Stirling engine at the Nevada National Security Site's Device Assembly Facility confirms basic nuclear reactor physics and heat transfer for a simple, reliable space power system.

  8. Small Reactor for Deep Space Exploration

    ScienceCinema (OSTI)

    None

    2014-05-30T23:59:59.000Z

    This is the first demonstration of a space nuclear reactor system to produce electricity in the United States since 1965, and an experiment demonstrated the first use of a heat pipe to cool a small nuclear reactor and then harvest the heat to power a Stirling engine at the Nevada National Security Site's Device Assembly Facility confirms basic nuclear reactor physics and heat transfer for a simple, reliable space power system.

  9. Flying on Sun Shine: Sailing in Space

    SciTech Connect (OSTI)

    Alhorn, Dean (NASA, Marshall Space Flight Center) [NASA, Marshall Space Flight Center

    2012-03-28T23:59:59.000Z

    On January 20th, 2011, NanoSail-D successfully deployed its sail in space. It was the first solar sail vehicle to orbit the earth and the second sail ever unfurled in space. The 10m2 sail, deployment mechanism and electronics were packed into a 3U CubeSat with a volume of about 3500cc. The NanoSail-D mission had two objectives: eject a nanosatellite from a minisatellite; deploy its sail from a highly compacted volume to validate large structure deployment and potential de-orbit technologies. NanoSail-D was jointly developed by NASA's Marshall Space Flight Center and Ames Research Center. The ManTech/NeXolve Corporation provided key sail design support. NanoSail-D is managed by Marshall and jointly sponsored by the Army Space and Missile Defense Command, the Space Test Program, the Von Braun Center for Science and Innovation and Dynetics Inc. The presentation will provide insights into sailcraft advances and potential missions enabled by this emerging in-space propulsion technology.

  10. Tethered nuclear power for the Space Station

    SciTech Connect (OSTI)

    Bents, D.J.

    1985-01-01T23:59:59.000Z

    A nuclear space power system the SP-100 is being developed for future missions where large amounts of electrical power will be required. Although it is primarily intended for unmanned spacecraft, it can be adapted to a manned space platform by tethering it above the station through an electrical transmission line which isolates the reactor far away from the inhabited platform and conveys its power back to where it is needed. The transmission line, used in conjunction with an instrument rate shield, attenuates reactor radiation in the vicinity of the space station to less than one-one hundredth of the natural background which is already there. This combination of shielding and distance attenuation is less than one-tenth the mass of boom-mounted or onboard man-rated shields that are required when the reactor is mounted nearby. This paper describes how connection is made to the platform (configuration, operational requirements) and introduces a new element the coaxial transmission tube which enables efficient transmission of electrical power through long tethers in space. Design methodology for transmission tubes and tube arrays is discussed. An example conceptual design is presented that shows SP-100 at three power levels 100 kWe, 300 kWe, and 1000 kWe connected to space station via a 2 km HVDC transmission line/tether. Power system performance, mass, and radiation hazard are estimated with impacts on space station architecture and operation.

  11. Guide to Space groups There are only 230 ways (space groups) to describe how identical objects can be

    E-Print Network [OSTI]

    Meagher, Mary

    Guide to Space groups There are only 230 ways (space groups) to describe how identical objects can but it gets better than that! If your structure contains a chrial center then any space group that has a mirror or an inversion operation can be rejected. Of the 230 space groups only 74 space groups

  12. 'AdS_5' Geometry Beyond Space-time and 4D Noncommutative Space-time

    E-Print Network [OSTI]

    Otto C. W. Kong

    2009-06-19T23:59:59.000Z

    We discuss a 4D noncommutative space-time as suggested by the version of quantum (deformed) relativity which provides a classical geometry picture as an `AdS_5'. The 4D noncommutative space-time is more like a part of a phase space description, in accordance with the quantum notion -- quantum mechanics talks about only states but not configurations. The `AdS_5' picture also illustrates the classical 4D space-time is to be described as part of a bigger geometry beyond space-time at the quantum level. The radically new picture of quantum 'space-time' is expected to provide the basis for a (still to be formulated) new approach to quantum gravity with fundamental constants (quantum) hbar and Newton's constant G put at a similar level as c, the speed of light.

  13. Design Space Exploration of Parameterized Systems using Design of Experiments

    E-Print Network [OSTI]

    Sheldon, David

    2011-01-01T23:59:59.000Z

    13 2.1 Design space exploration for system specific tuningShin Figure 5: Noxim NoC design space with over 60,00030: Percent of the design space that needs to be explored in

  14. Unusual light in dark space revealed by Los Alamos, NASA

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

    Unusual light in dark space revealed by Los Alamos, NASA Unusual light in dark space revealed by Los Alamos, NASA By looking at the dark spaces between visible galaxies and stars...

  15. Bonsai: a philosophy for efficient exhaustion of large sparse spaces

    E-Print Network [OSTI]

    Nguyen, Phuong-Anh Nguyet

    1995-01-01T23:59:59.000Z

    This thesis introduces the Bonsai technique which can efficiently improve the identification of large nonsolution spaces in the search space. The technique can make exponential improvements in the reduction of the search space using a linear method...

  16. advanced space radiators: Topics by E-print Network

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

    about the space radiation impacts on the human body and defend the space radiation damage. This paper designed a prototype of the space radiation detector for SJ-10 and...

  17. National Aeronautics and Space Administration Space Technology RoadmapS STR

    E-Print Network [OSTI]

    /kW Asteroid Deflection Demonstration >1,000 m2 Solar Sail Orbital Demo Space Demo Refueling from tanker >2,500 m2 Solar Sail Space Demo Momentum Exchange Tether Boost Station Demo CRYOSTAT Interstellar Probe MPD 250-500 kW Li MPD 1 MW Li MPD NTR 5klbf Engine test NTP 5 klbf Demo >40,000 m2 Solar Sail Space

  18. Generalized space-charge limited current and virtual cathode behaviors in one-dimensional drift space

    SciTech Connect (OSTI)

    Yang, Zhanfeng; Liu, Guozhi [Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 (China) [Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 (China); Northwest Institute of Nuclear Technology, P.O. Box 69-13, Xi'an 710024 (China); Shao, Hao; Chen, Changhua; Sun, Jun [Northwest Institute of Nuclear Technology, P.O. Box 69-13, Xi'an 710024 (China)] [Northwest Institute of Nuclear Technology, P.O. Box 69-13, Xi'an 710024 (China)

    2013-10-15T23:59:59.000Z

    This paper reports the space-charge limited current (SLC) and virtual cathode behaviors in one-dimensional grounded drift space. A simple general analytical solution and an approximate solution for the planar diode are given. Through a semi-analytical method, a general solution for SLC in one-dimensional drift space is obtained. The behaviors of virtual cathode in the drift space, including dominant frequency, electron transit time, position, and transmitted current, are yielded analytically. The relationship between the frequency of the virtual cathode oscillation and the injected current presented may explain previously reported numerical works. Results are significant in facilitating estimations and further analytical studies.

  19. Space-time attributes of physical objects and the laws of space-time physics

    E-Print Network [OSTI]

    J. H. Field

    2008-09-24T23:59:59.000Z

    Physical time intervals are attributes of single physical object whereas physical space intervals are a relational attribute of two physical objects. Some consequences of the breaking of the space-time exchange symmetry inherent in the Lorentz transformation following from the above distinction are investigated. In particular, it is shown that the relativity of simultaneity and length contraction effects which naively follow from space-time symmetry of the Lorentz transformation do not occur. Seven laws describing the relation between observations of space intervals, time intervals and velocities in different reference frames are given. Only two of these laws are respected by conventional special relativity theory.

  20. East Middle School and Cayuga Community College Space Heating...

    Open Energy Info (EERE)

    Middle School and Cayuga Community College Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name East Middle School and Cayuga Community College Space...

  1. Cedarville Elementary & High School Space Heating Low Temperature...

    Open Energy Info (EERE)

    Elementary & High School Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Cedarville Elementary & High School Space Heating Low Temperature...

  2. Walley's Hot Springs Resort Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Walley's Hot Springs Resort Space Heating Low Temperature Geothermal Facility Facility Walley's...

  3. Steamboat Villa Hot Springs Spa Space Heating Low Temperature...

    Open Energy Info (EERE)

    Villa Hot Springs Spa Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Steamboat Villa Hot Springs Spa Space Heating Low Temperature Geothermal...

  4. Warner Springs Ranch Resort Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warner Springs Ranch Resort Space Heating Low Temperature Geothermal Facility Facility Warner...

  5. Broadwater Athletic Club & Hot Springs Space Heating Low Temperature...

    Open Energy Info (EERE)

    Athletic Club & Hot Springs Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Broadwater Athletic Club & Hot Springs Space Heating Low Temperature...

  6. Klamath Apartment Buildings (13) Space Heating Low Temperature...

    Open Energy Info (EERE)

    Apartment Buildings (13) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Klamath Apartment Buildings (13) Space Heating Low Temperature...

  7. Agua Calientes Trailer Park Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Calientes Trailer Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Agua Calientes Trailer Park Space Heating Low Temperature Geothermal...

  8. Shoshone Motel & Trailer Park Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Shoshone Motel & Trailer Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Shoshone Motel & Trailer Park Space Heating Low Temperature...

  9. Hot Springs National Park Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    National Park Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Hot Springs National Park Space Heating Low Temperature Geothermal Facility...

  10. Wiesbaden Motel & Health Resort Space Heating Low Temperature...

    Open Energy Info (EERE)

    Motel & Health Resort Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Wiesbaden Motel & Health Resort Space Heating Low Temperature Geothermal...

  11. Maywood Industries of Oregon Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Maywood Industries of Oregon Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Maywood Industries of Oregon Space Heating Low Temperature...

  12. Salida Hot Springs (Poncha Spring) Space Heating Low Temperature...

    Open Energy Info (EERE)

    Salida Hot Springs (Poncha Spring) Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Salida Hot Springs (Poncha Spring) Space Heating Low...

  13. Modesto Memorial Hospital Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Memorial Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Modesto Memorial Hospital Space Heating Low Temperature Geothermal Facility...

  14. Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Jackson Hot Springs Lodge Space Heating Low Temperature Geothermal Facility...

  15. Senior Citizens' Center Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Senior Citizens' Center Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Senior Citizens' Center Space Heating Low Temperature Geothermal Facility...

  16. Waunita Hot Springs Ranch Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Springs Ranch Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Waunita Hot Springs Ranch Space Heating Low Temperature Geothermal Facility...

  17. Glenwood Hot Springs Lodge Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Lodge Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Glenwood Hot Springs Lodge Space Heating Low Temperature Geothermal Facility Facility...

  18. Pagosa Springs Private Wells Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Private Wells Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Pagosa Springs Private Wells Space Heating Low Temperature Geothermal Facility...

  19. Merle West Medical Center Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    Merle West Medical Center Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Merle West Medical Center Space Heating Low Temperature Geothermal...

  20. Warm Springs State Hospital Space Heating Low Temperature Geothermal...

    Open Energy Info (EERE)

    State Hospital Space Heating Low Temperature Geothermal Facility Jump to: navigation, search Name Warm Springs State Hospital Space Heating Low Temperature Geothermal Facility...

  1. Shared Space vs. In-Unit Upgrades in Multifamily Buildings |...

    Energy Savers [EERE]

    Shared Space vs. In-Unit Upgrades in Multifamily Buildings Shared Space vs. In-Unit Upgrades in Multifamily Buildings Better Buildings Neighborhood Program Multifamily Peer...

  2. Before the House Science, Space, and Technology Subcommittee...

    Energy Savers [EERE]

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

  3. Before the House Science, Space, and Technology Subcommittee...

    Office of Environmental Management (EM)

    Investigations and Oversight Before the House Science, Space, and Technology Subcommittee on Investigations and Oversight Before the House Science, Space, and Technology...

  4. Active-space completely-renormalized equation-of-motioncoupled...

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

    space completely-renormalized equation-of-motion coupled-clusterformalism: Excited-state studies of green fluorescent Active-space completely-renormalized equation-of-motion...

  5. Before the House Committee on Science, Space and Technology Subcommitt...

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

    Science, Space and Technology Subcommittee on Energy Before the House Committee on Science, Space and Technology Subcommittee on Energy Testimony of Dr. Imre Gyuk, Program Manger...

  6. Building America Final Expert Meeting Report: Simplified Space...

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

    Final Expert Meeting Report: Simplified Space Conditioning Strategies for Energy Efficient Houses Building America Final Expert Meeting Report: Simplified Space Conditioning...

  7. New Horizons Mission Powered by Space Radioisotope Power Systems...

    Energy Savers [EERE]

    New Horizons Mission Powered by Space Radioisotope Power Systems New Horizons Mission Powered by Space Radioisotope Power Systems January 30, 2008 - 6:47pm Addthis Artist's concept...

  8. Thermoelectrics: From Space Power Systems to Terrestrial Waste...

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

    Thermoelectrics: From Space Power Systems to Terrestrial Waste Heat Recovery Applications Thermoelectrics: From Space Power Systems to Terrestrial Waste Heat Recovery Applications...

  9. Space Mapping: Models, Sensitivities, and Trust-Regions Methods 1 ...

    E-Print Network [OSTI]

    We consider also a di erent perspective of space mapping and apply it, ... built by composition of the space mapping and the coarse model is a regular function.

  10. Quasi-orthogonal space-frequency and space-time-frequency block codes for MIMO OFDM channels

    E-Print Network [OSTI]

    Fazel, Fatemeh; Jafarkhani, Hamid

    2008-01-01T23:59:59.000Z

    Lu and X. Wang, “Space-time code design in OFDM systems,” inSpace-time block codes from orthogonal designs,” IEEE Trans.orthogonal space- time block codes with full diversity,”

  11. The coordinated control of space robot teams for the on-orbit construction of large flexible space structures

    E-Print Network [OSTI]

    Boning, Peggy

    2009-01-01T23:59:59.000Z

    Teams of autonomous space robots are needed for future space missions such as the construction of large solar power stations and large space telescopes in earth orbit. This work focuses on the control of teams of robots ...

  12. A space of intersections : campus- based Women's centers and the third space between public and private spheres

    E-Print Network [OSTI]

    Dela Peña, Emelyn A.

    2009-01-01T23:59:59.000Z

    to take a nap as it is a space to be awakened. Referencesthe (n)either/(n)or of ‘third space’: (re) presenting hybridNegotiations in the Third Space. Feminist theology, 13(1),

  13. Metastring Theory and Modular Space-time

    E-Print Network [OSTI]

    Freidel, Laurent; Minic, Djordje

    2015-01-01T23:59:59.000Z

    String theory is canonically accompanied with a space-time interpretation which determines S-matrix-like observables, and connects to the standard physics at low energies in the guise of local effective field theory. Recently, we have introduced a reformulation of string theory which does not rely on an {\\it a priori} space-time interpretation or a pre-assumption of locality. This \\hlt{metastring theory} is formulated in such a way that stringy symmetries (such as T-duality) are realized linearly. In this paper, we study metastring theory on a flat background and develop a variety of technical and interpretational ideas. These include a formulation of the moduli space of Lorentzian worldsheets, a careful study of the symplectic structure and consequently consistent closed and open boundary conditions, and the string spectrum and operator algebra. What emerges from these studies is a new quantum notion of space-time that we refer to as a quantum Lagrangian or equivalently a \\hlt{modular space-time}. This conce...

  14. Dynamical 3-Space: neo-Lorentz Relativity

    E-Print Network [OSTI]

    Reginald T Cahill

    2012-07-05T23:59:59.000Z

    The major extant relativity theories - Galileo's Relativity (GaR), Lorentz's Relativity (LR) and Einstein's Special Relativity (SR), with the latter much celebrated, while the LR is essentially ignored. Indeed it is often incorrectly claimed that SR and LR are experimentally indistinguishable. Here we show that (i) SR and LR are experimentally distinguishable, (ii) that comparison of gas-mode Michelson interferometer experiments with spacecraft earth-flyby Doppler shift data demonstrate that it is LR that is consistent with the data, while SR is in conflict with the data, (iii) SR is exactly derivable from GaR by means of a mere linear change of space and time coordinates that mixes the Galilean space and time coordinates. So it is GaR and SR that are equivalent. Hence the well-known SR relativistic effects are purely coordinate effects, and cannot correspond to the observed relativistic effects. The connections between these three relativity theories has become apparent following the discovery that space is an observable dynamical textured system, and that space and time are distinct phenomena, leading to a neo-Lorentz Relativity (nLR). The observed relativistic effects are dynamical consequences of nLR and 3-space. In particular a proper derivation of the Dirac equation from nLR is given, which entails the derivation of the rest mass energy mc^2

  15. Hodge Spaces for Real Toric Varieties

    E-Print Network [OSTI]

    Hower, Valerie

    2007-01-01T23:59:59.000Z

    We define the Z/2Z Hodge spaces H_{pq}(\\Sigma) of a fan \\Sigma. If \\Sigma is the normal fan of a reflexive polytope \\Delta then we use polyhedral duality to compute the Z/2Z Hodge Spaces of \\Sigma. In particular, if the cones of dimension at most e in the face fan \\Sigma^* of \\Delta are smooth then we compute H_{pq}(\\Sigma) for pspaces H_{pq}(\\Sigma) and we show the toric variety X associated to \\Sigma is maximal, meaning that the sum of the Z/2Z Betti numbers of X(R) is equal to the sum of the Z/2Z Betti numbers of X(C).

  16. Topology on locally finite metric spaces

    E-Print Network [OSTI]

    Capraro, Valerio

    2011-01-01T23:59:59.000Z

    The necessity of a theory of General Topology and, most of all, of Algebraic Topology on locally finite metric spaces comes from many areas of research in both Applied and Pure Mathematics: Molecular Biology, Mathematical Chemistry, Computer Science, Topological Graph Theory and Metric Geometry. In this paper we propose the basic notions of such a theory and some applications: we replace the classical notions of continuous function, homeomorphism and homotopic equivalence with the notions of NPP-function, NPP-local-isomorphism and NPP-homotopy (NPP stands for Nearest Point Preserving); we also introduce the notion of NPP-isomorphism. We construct three invariants under NPP-isomorphisms and, in particular, we define the fundamental group of a locally finite metric space. As first applications, we propose the following: motivated by the longstanding question whether there is a purely metric condition which extends the notion of amenability of a group to any metric space, we propose the property SN (Small Neighb...

  17. de Sitter space from M-theory?

    E-Print Network [OSTI]

    Andrew Chamblin; Neil D. Lambert

    2001-02-26T23:59:59.000Z

    In this note we study a massive IIA supergravity theory obtained in hep-th/9707139 by compactification of M-theory. We point out that de Sitter space in arbitrary dimensions arises naturally as the vacuum of this theory. This explicitly shows how de Sitter space can be embedded into eleven-dimensional supergravity. In addition we discuss the novel way in which this theory avoids various `no-go theorems' which assert that de Sitter space is not a consistent vacua of eleven-dimensional supergravity theory. We also point out that the eight-branes of this theory, which couple electrically to the ten-form, can sweep out de Sitter world-volumes.

  18. Topology of Vacuum Space-Time

    E-Print Network [OSTI]

    Y. M. Cho

    2007-03-02T23:59:59.000Z

    We present a topological classification of vacuum space-time. Assuming the 3-dimensional space allows a global chart, we show that the static vacuum space-time of Einstein's theory can be classified by the knot topology $\\pi_3(S^3)=\\pi_3(S^2)$. Viewing Einstein's theory as a gauge theory of Lorentz group and identifying the gravitational connection as the gauge potential of Lorentz group, we construct all possible vacuum gravitational connections which give a vanishing curvature tensor. With this we show that the vacuum connection has the knot topology, the same topology which describes the multiple vacua of SU(2) gauge theory. We discuss the physical implications of our result in quantum gravity.

  19. Very Large Aperture Diffractive Space Telescope

    SciTech Connect (OSTI)

    Hyde, Roderick Allen

    1998-04-20T23:59:59.000Z

    A very large (10's of meters) aperture space telescope including two separate spacecraft--an optical primary functioning as a magnifying glass and an optical secondary functioning as an eyepiece. The spacecraft are spaced up to several kilometers apart with the eyepiece directly behind the magnifying glass ''aiming'' at an intended target with their relative orientation determining the optical axis of the telescope and hence the targets being observed. The magnifying glass includes a very large-aperture, very-thin-membrane, diffractive lens, e.g., a Fresnel lens, which intercepts incoming light over its full aperture and focuses it towards the eyepiece. The eyepiece has a much smaller, meter-scale aperture and is designed to move along the focal surface of the magnifying glass, gathering up the incoming light and converting it to high quality images. The positions of the two space craft are controlled both to maintain a good optical focus and to point at desired targets.

  20. Solar Power Beaming: From Space to Earth

    SciTech Connect (OSTI)

    Rubenchik, A M; Parker, J M; Beach, R J; Yamamoto, R M

    2009-04-14T23:59:59.000Z

    Harvesting solar energy in space and power beaming the collected energy to a receiver station on Earth is a very attractive way to help solve mankind's current energy and environmental problems. However, the colossal and expensive 'first step' required in achieving this goal has to-date stifled its initiation. In this paper, we will demonstrate that recent advance advances in laser and optical technology now make it possible to deploy a space-based system capable of delivering 1 MW of energy to a terrestrial receiver station, via a single unmanned commercial launch into Low Earth Orbit (LEO). Figure 1 depicts the overall concept of our solar power beaming system, showing a large solar collector in space, beaming a coherent laser beam to a receiving station on Earth. We will describe all major subsystems and provide technical and economic discussion to support our conclusions.