National Library of Energy BETA

Sample records for unavailable space brine

  1. Sandstone ? Brine + GH Sandstone ? Brine 200 200 Sandstone ...

    E-Print Network [OSTI]

    santos@gauss ()

    Sandstone ? Brine + GH. Sandstone ? Brine. 200. 200. Sandstone ? Brine. x. z. 800. Vp=2200 m/s. Vs=1250 m/sSigma=1 S/m. Vp=4100 m/s. Vs=2300 ...

  2. Viscous heavy brines

    SciTech Connect (OSTI)

    House, R.F.; Hoover, L.D.

    1984-07-10

    Hydroxyethyl cellulose and a sequestrant are added to a heavy brine containing one or more salts selected from calcium chloride, calcium bromide, and zinc bromide to increase the viscosity of the brine. Preferably the brine contains zinc bromide, has a density in the range from about 14.2-19.2 pounds per gallon, and the sequestrant is a polyphosphonic acid or water soluble salt thereof.

  3. Thickened heavy brines

    SciTech Connect (OSTI)

    House, R.F.; Hoover, L.D.

    1983-12-13

    A thickened brine solution useful as a well servicing fluid is prepared, said solution consisting essentially of water, at least 20% by weight zinc bromide, calcium bromide, and a viscosifying amount of hydroxyethyl cellulose.

  4. 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.

    1999-08-01

    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.

  5. 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)

    1999-08-01

    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.

  6. Brine stability study

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

    Gary Garland

    2015-04-15

    This is a study of the brine formulations that we were using in our testing were stable over time. The data includes charts, as well as, all of the original data from the ICP-MS runs to complete this study.

  7. Quantifying the Impact of Unavailability in Cyber-Physical Environments

    SciTech Connect (OSTI)

    Aissa, Anis Ben; Abercrombie, Robert K; Sheldon, Federick T.; Mili, Ali

    2014-01-01

    The Supervisory Control and Data Acquisition (SCADA) system discussed in this work manages a distributed control network for the Tunisian Electric & Gas Utility. The network is dispersed over a large geographic area that monitors and controls the flow of electricity/gas from both remote and centralized locations. The availability of the SCADA system in this context is critical to ensuring the uninterrupted delivery of energy, including safety, security, continuity of operations and revenue. Such SCADA systems are the backbone of national critical cyber-physical infrastructures. Herein, we propose adapting the Mean Failure Cost (MFC) metric for quantifying the cost of unavailability. This new metric combines the classic availability formulation with MFC. The resulting metric, so-called Econometric Availability (EA), offers a computational basis to evaluate a system in terms of the gain/loss ($/hour of operation) that affects each stakeholder due to unavailability.

  8. Brining studies at Pepper Products Inc. 

    E-Print Network [OSTI]

    Okoro, John Daniel

    1988-01-01

    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...

  9. Brine Sampling and Evaluation Program, 1991 report

    SciTech Connect (OSTI)

    Deal, D.E.; Abitz, R.J.; Myers, J.; Martin, M.L.; Milligan, D.J.; Sobocinski, R.W.; Lipponer, P.P.J.; Belski, D.S.

    1993-09-01

    The data presented in this report are the result of Brine Sampling and Evaluation Program (BSEP) activities at the Waste Isolation Pilot Plan (WIPP) during 1991. These BSEP activities document and investigate the origins, hydraulic characteristics, extent, and composition of brine occurrences in the Permian Salado Formation and seepage of that brine into the excavations at the WIPP. When excavations began at the WIPP in 1982, small brine seepages (weeps) were observed on the walls. Brine studies began as part of the Site Validation Program and were formalized as a program in its own right in 1985. During nine years of observations (1982--1991), evidence has mounted that the amount of brine seeping into the WIPP excavations is limited, local, and only a small fraction of that required to produce hydrogen gas by corroding the metal in the waste drums and waste inventory. The data through 1990 is discussed in detail and summarized by Deal and others (1991). The data presented in this report describes progress made during the calendar year 1991 and focuses on four major areas: (1) quantification of the amount of brine seeping across vertical surfaces in the WIPP excavations (brine ``weeps); (2) monitoring of brine inflow, e.g., measuring brines recovered from holes drilled downward from the underground drifts (downholes), upward from the underground drifts (upholes), and from subhorizontal holes; (3) further characterization of brine geochemistry; and (4) preliminary quantification of the amount of brine that might be released by squeezing the underconsolidated clays present in the Salado Formation.

  10. Viscous heavy brine completion fluids. [Oil wells

    SciTech Connect (OSTI)

    Darlington, R.K.; Hunter, D.V.

    1982-01-01

    An activated hydroxyethyl cellulose (HEC) has been developed which will viscosify brines of any density up to 19.2 lb/gal containing calcium chloride, calcium bromide and/or zinc bromide. The use of activated hydroxyethyl cellulose allows preparation of viscosified brines at ambient emperature and without undissolved polymer solids. The time required to prepare a viscosified brine is greatly reduced. In addition, the rheology of brines viscosified with activated HEC can be accurately predicted allowing brines with equivalent solution rheology properties to be prepared batch after batch. 29 refs.

  11. Improved Water Flooding through Injection Brine Modification

    SciTech Connect (OSTI)

    Robertson, Eric Partridge; Thomas, Charles Phillip; Morrow, Norman

    2003-01-01

    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.

  12. Batteries from Brine | Department of Energy

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

    technologies that extract these strategic materials from geothermal brines at a mining operation -- a first-of-its-kind achievement. Simbol estimates that the mineral-rich...

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

    E-Print Network [OSTI]

    Machiels, A.J.

    2010-01-01

    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.

  14. 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)

    1981-01-01

    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.

  15. Assessment of Brine Management for Geologic Carbon Sequestration

    E-Print Network [OSTI]

    Breunig, Hanna M.

    2014-01-01

    seawater,  industrial  waste,   and  brine  desalination  and  seawater  concentrate  disposal  alternatives."   Desalination  

  16. How temperature and pressure affect clear brines

    SciTech Connect (OSTI)

    Hubbard, J.T.

    1984-04-01

    The correct application of the expansivity and compressibility of brine fluids under the influence of temperature and pressure is needed to calculate the actual hydrostatic pressure in a well. Well operations can benefit by reducing unintentional overbalance, lessening fluid losses, and lowering recommended fluid densities, hence reducing fluid costs. Since the early 1970s, the effects of temperature and pressure on the density of clear brine fluids have been questioned. As early as 1973, studies were started to define density loss with increased temperature in zinc bromide brines. This article describes a continuing study, begun in 1978, which has characterized the expansivity and compressibility of single salt brine solutions, such as are used in workover and completion fluids.

  17. Brine flow in heated geologic salt.

    SciTech Connect (OSTI)

    Kuhlman, Kristopher L.; Malama, Bwalya

    2013-03-01

    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.

  18. THERMAL GRADIENT MIGRATION OF BRINE INCLUSIONS IN SALT

    E-Print Network [OSTI]

    Yagnik, S.K.

    2010-01-01

    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

  19. 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)

    2009-04-07

    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.

  20. Expected brine movement at potential nuclear waste repository salt sites

    SciTech Connect (OSTI)

    McCauley, V.S.; Raines, G.E.

    1987-08-01

    The BRINEMIG brine migration code predicts rates and quantities of brine migration to a waste package emplaced in a high-level nuclear waste repository in salt. The BRINEMIG code is an explicit time-marching finite-difference code that solves a mass balance equation and uses the Jenks equation to predict velocities of brine migration. Predictions were made for the seven potentially acceptable salt sites under consideration as locations for the first US high-level nuclear waste repository. Predicted total quantities of accumulated brine were on the order of 1 m/sup 3/ brine per waste package or less. Less brine accumulation is expected at domal salt sites because of the lower initial moisture contents relative to bedded salt sites. Less total accumulation of brine is predicted for spent fuel than for commercial high-level waste because of the lower temperatures generated by spent fuel. 11 refs., 36 figs., 29 tabs.

  1. Summary Results for Brine Migration Modeling Performed by LANL...

    Energy Savers [EERE]

    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...

  2. Molecular Simulation of Carbon Dioxide Brine and Clay Mineral...

    Office of Scientific and Technical Information (OSTI)

    Molecular Simulation of Carbon Dioxide Brine and Clay Mineral Interactions and Determination of Contact Angles. Citation Details In-Document Search Title: Molecular Simulation of...

  3. 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIXsourceII JumpQuarterly SmartDB-2,InformationAwardee JumpBrineConstituents Jump to:

  4. Reduce completion fluid costs with on-site brine tests

    SciTech Connect (OSTI)

    Thomas, D.C.; Darlington, R.K.; Kinney, W.R.; Lowell, J.L.

    1982-09-01

    A newly developed field kit makes on-site brine completion fluid testing practical. Simple titration procedures are used to analyze brine for calcium, zinc, chloride and bromide with an accuracy and repeatability that compares favorably with expensive laboratory techniques. This article describes the field testing theory and details analytical procedures used.

  5. Technique for thermodynamic crystallization temperature of brine fluids

    SciTech Connect (OSTI)

    Clark, D.E.; Hubbard, J.T.

    1983-03-01

    The application of high density solids free brine fluids has proven to be technically and economically successful in hydrocarbon completion and workover operations. The use of inorganic salts such as calcium chloride, calcium bromide, zinc bromide, and sodium bromide has contributed to the development of complex salt systems. As the density and complexity of these systems becomes more detailed, the requirement for proper fluid design becomes increasingly important. When a brine solution is cooled sufficiently, a temperature is reached where the solution will be saturated. A further decrease in temperature will result in the precipitation of salt from the solution. The temperature at which this transpires, provided no super-cooling occurs, is the crystallization point of the solution. A correctly formulated solids free brine should have the optimum crystallization point for the temperature conditions it will encounter. A recently developed semiautomatic procedure constructs a cooling curve plot of each brine tested. This cooling curve plot allows the determination of the super-cooling potential, the Thermodynamic Crystallization Temperature, and the Last Crystal To Dissolve Temperature. The device provides a permanent record of the cooling curve with repeatable accuracy, which assists in the development of error free brine formulation tables, brine density, and/or crystallization point adjustments, and brine analysis.

  6. Radionuclide transport in sandstones with WIPP brine

    SciTech Connect (OSTI)

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

    1981-02-01

    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.

  7. Formate brines -- New fluids for drilling and completions

    SciTech Connect (OSTI)

    Ramsey, M.S.; Shipp, J.A.

    1996-01-01

    The term ``formate brines`` refers broadly to three primary compounds dissolved in water -- sodium formate (NaCOOH), potassium formate (KCOOH) and cesium formate (CsCOOH). Each is chemically classified as an alkali-metal salt of formic acid. They offer properties that in many respects are superior to their predecessors, halide brines such as zinc bromide and calcium bromide, without the undesirable side effects of those more common halide brine systems. This article introduces the technology and provides an overview of published work to date regarding formates.

  8. Fate of Magnesium Chloride Brine Applied to Suppress Dust from...

    Office of Scientific and Technical Information (OSTI)

    mass ratio and the total dissolved Cl- concentration of pore water show that brine contamination occurs primarily within 13 m of treated roads, but can extend as much as 30 m...

  9. TOUGHREACT Testing in High Ionic Strength Brine Sandstone Systems

    E-Print Network [OSTI]

    Xu, Tianfu

    2008-01-01

    High Ionic Strength Brine Sandstone Systems Tianfu Xu Earthwith H2S and SO2 in a sandstone formation, Chemical Geology,system using a Gulf Coast sandstone saline formation. 2.

  10. 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 in this section and expand the understanding of the interactions of the Spraberry reservoir rock, oil and brine used Spraberry oil, synthetic reservoir brine and Spraberry core at reservoir temperature (138o F

  11. Determination of dissolved organic carbon in concentrated brine solutions

    SciTech Connect (OSTI)

    Hannaker, P.; Buchanan, A.S.

    1983-10-01

    An absolute method is reported for the determination of soluble organic carbon in concentrated brine solutions. Wet oxidation with K/sub 2/S/sub 2/O/sub 8/ is used in a sealed ampule at 130/sup 0/C, followed by hot CuO treatment of the gas stream, to fully oxidize organic species to CO/sub 2/. The CO/sub 2/ is measured gravimetrically after gas purification. Results are presented for a wide range of soluble organic species, both with and without NaCl present. This procedure now allows for the accurate determination of organic carbon in brines over a range from about 5 ppm to values in excess of 1000 ppm. The technique overcomes the difficulties of calibration curvature, catalytic clogging, and instrumental fogging, often encountered in modern instrumental methods, when applied to concentrated brine solutions. 1 figure, 3 tables.

  12. Actinide (III) solubility in WIPP Brine: data summary and recommendations

    SciTech Connect (OSTI)

    Borkowski, Marian; Lucchini, Jean-Francois; Richmann, Michael K.; Reed, Donald T.

    2009-09-01

    The solubility of actinides in the +3 oxidation state is an important input into the Waste Isolation Pilot Plant (WIPP) performance assessment (PA) models that calculate potential actinide release from the WIPP repository. In this context, the solubility of neodymium(III) was determined as a function of pH, carbonate concentration, and WIPP brine composition. Additionally, we conducted a literature review on the solubility of +3 actinides under WIPP-related conditions. Neodymium(III) was used as a redox-invariant analog for the +3 oxidation state of americium and plutonium, which is the oxidation state that accounts for over 90% of the potential release from the WIPP through the dissolved brine release (DBR) mechanism, based on current WIPP performance assessment assumptions. These solubility data extend past studies to brine compositions that are more WIPP-relevant and cover a broader range of experimental conditions than past studies.

  13. Laboratory studies of imbibition flooding using carbonated brine 

    E-Print Network [OSTI]

    Sharif, Qamar Javaid

    1991-01-01

    & Technology, Pakistan. Chair of Advisory Committee: Dr. Steven W. Poston The objective of this research was to blend both, COq injection and water imbibition methods and develop a technique best suitable for enhancing oil recovery from low permeability... drive, was induced at the end of 48 hours. Studies have shown that increase in carbonated brine concentration increased total oil recovery at 70 F. With 5. 5 % carbonated brine, 62. 2 % of OOIP was recovered at 150 F as compared to 73. 7 % of OOIP...

  14. Uranium (VI) solubility in carbonate-free ERDA-6 brine

    SciTech Connect (OSTI)

    Lucchini, Jean-francois; Khaing, Hnin; Reed, Donald T

    2010-01-01

    When present, uranium is usually an element of importance in a nuclear waste repository. In the Waste Isolation Pilot Plant (WIPP), uranium is the most prevalent actinide component by mass, with about 647 metric tons to be placed in the repository. Therefore, the chemistry of uranium, and especially its solubility in the WIPP conditions, needs to be well determined. Long-term experiments were performed to measure the solubility of uranium (VI) in carbonate-free ERDA-6 brine, a simulated WIPP brine, at pC{sub H+} values between 8 and 12.5. These data, obtained from the over-saturation approach, were the first repository-relevant data for the VI actinide oxidation state. The solubility trends observed pointed towards low uranium solubility in WIPP brines and a lack of amphotericity. At the expected pC{sub H+} in the WIPP ({approx} 9.5), measured uranium solubility approached 10{sup -7} M. The objective of these experiments was to establish a baseline solubility to further investigate the effects of carbonate complexation on uranium solubility in WIPP brines.

  15. Sensitivity study of CO2 storage capacity in brine aquifers withclosed boundaries: Dependence on hydrogeologic properties

    SciTech Connect (OSTI)

    Zhou, Q.; Birkholzer, J.; Rutqvist, J.; Tsang, C-F.

    2007-02-07

    In large-scale geologic storage projects, the injected volumes of CO{sub 2} will displace huge volumes of native brine. If the designated storage formation is a closed system, e.g., a geologic unit that is compartmentalized by (almost) impermeable sealing units and/or sealing faults, the native brine cannot (easily) escape from the target reservoir. Thus the amount of supercritical CO{sub 2} that can be stored in such a system depends ultimately on how much pore space can be made available for the added fluid owing to the compressibility of the pore structure and the fluids. To evaluate storage capacity in such closed systems, we have conducted a modeling study simulating CO{sub 2} injection into idealized deep saline aquifers that have no (or limited) interaction with overlying, underlying, and/or adjacent units. Our focus is to evaluate the storage capacity of closed systems as a function of various reservoir parameters, hydraulic properties, compressibilities, depth, boundaries, etc. Accounting for multi-phase flow effects including dissolution of CO{sub 2} in numerical simulations, the goal is to develop simple analytical expressions that provide estimates for storage capacity and pressure buildup in such closed systems.

  16. 503 Service Temporarily Unavailable

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

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  17. Modeling acid-gas generation from boiling chloride brines

    SciTech Connect (OSTI)

    Zhang, Guoxiang; Spycher, Nicolas; Sonnenthal, Eric; Steefel, Carl

    2009-11-16

    This study investigates the generation of HCl and other acid gases from boiling calcium chloride dominated waters at atmospheric pressure, primarily using numerical modeling. The main focus of this investigation relates to the long-term geologic disposal of nuclear waste at Yucca Mountain, Nevada, where pore waters around waste-emplacement tunnels are expected to undergo boiling and evaporative concentration as a result of the heat released by spent nuclear fuel. Processes that are modeled include boiling of highly concentrated solutions, gas transport, and gas condensation accompanied by the dissociation of acid gases, causing low-pH condensate. Simple calculations are first carried out to evaluate condensate pH as a function of HCl gas fugacity and condensed water fraction for a vapor equilibrated with saturated calcium chloride brine at 50-150 C and 1 bar. The distillation of a calcium-chloride-dominated brine is then simulated with a reactive transport model using a brine composition representative of partially evaporated calcium-rich pore waters at Yucca Mountain. Results show a significant increase in boiling temperature from evaporative concentration, as well as low pH in condensates, particularly for dynamic systems where partial condensation takes place, which result in enrichment of HCl in condensates. These results are in qualitative agreement with experimental data from other studies. The combination of reactive transport with multicomponent brine chemistry to study evaporation, boiling, and the potential for acid gas generation at the proposed Yucca Mountain repository is seen as an improvement relative to previously applied simpler batch evaporation models. This approach allows the evaluation of thermal, hydrological, and chemical (THC) processes in a coupled manner, and modeling of settings much more relevant to actual field conditions than the distillation experiment considered. The actual and modeled distillation experiments do not represent expected conditions in an emplacement drift, but nevertheless illustrate the potential for acid-gas generation at moderate temperatures (<150 C).

  18. Pre-injection brine production for managing pressure in compartmentalized CO? storage reservoirs

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

    Buscheck, Thomas A.; White, Joshua A.; Chen, Mingjie; Sun, Yunwei; Hao, Yue; Aines, Roger D.; Bourcier, William L.; Bielicki, Jeffrey M.

    2014-12-31

    We present a reservoir management approach for geologic CO? storage that combines CO? injection with brine extraction. In our approach,dual-mode wells are initially used to extract formation brine and subsequently used to inject CO?. These wells can also be used to monitor the subsurface during pre-injection brine extraction so that key data is acquired and analyzed prior to CO? injection. The relationship between pressure drawdown during pre-injection brine extraction and pressure buildup during CO? injection directly informs reservoir managers about CO? storage capacity. These data facilitate proactive reservoir management, and thus reduce costs and risks. The brine may be usedmore »directly as make-up brine for nearby reservoir operations; it can also be desalinated and/or treated for a variety of beneficial uses.« less

  19. Community Geothermal Technology Program: Electrodeposition of minerals in geothermal brine

    SciTech Connect (OSTI)

    Not Available

    1990-12-31

    Objective was to study the materials electrodeposited from geothermal brine, from the HGP-A well in Puna, Hawaii. Due to limitations, only one good set of electrodeposited material was obtained; crystallography indicates that vaterite forms first, followed by calcite and then perhaps aragonite as current density is increased. While the cost to weight ratio is reasonable, the deposition rate is very slow. More research is needed, such as reducing the brittleness. The electrodeposited material possibly could be used as building blocks, tables, benches, etc. 49 figs, 4 tabs, 7 refs.

  20. Space

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

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  1. Deep convection and brine rejection in the Japan Sea Lynne D. Talley

    E-Print Network [OSTI]

    Talley, Lynne D.

    Deep convection and brine rejection in the Japan Sea Lynne D. Talley Scripps Institution groups. Japan Sea deep convection apparently occurs every winter, but massive renewal of bottom waters. Salyuk, P. Tishchenko, I. Zhabin, and S. Riser, Deep convection and brine rejection in the Japan Sea

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

    E-Print Network [OSTI]

    temperature gradients and at greater depths in the ice. Preliminary modelling of the impact of brine migration of thermistors frozen into first­year Antarctic sea ice provides temperature against depth data, which is fitted on heat transport through first­year sea ice is presented. Diffusion­driven brine pocket migration

  3. Brine Rejection from Freezing Salt Solutions: A Molecular Dynamics Study Lubos Vrbka and Pavel Jungwirth*

    E-Print Network [OSTI]

    Zhigilei, Leonid V.

    Brine Rejection from Freezing Salt Solutions: A Molecular Dynamics Study Lubos Vrbka and Pavel process of brine rejection from freezing salt solutions is investigated with atomic resolution using. The presence of salt slows down the freezing process, which leads to the formation of an almost neat ice next

  4. Scaling control during membrane distillation of coal seam gas reverse osmosis brine

    E-Print Network [OSTI]

    Scaling control during membrane distillation of coal seam gas reverse osmosis brine Hung C. Duong during membrane distillation (MD) of brine from reverse osmosis (RO) treatment of coal seam gas (CSG. During CSG production, both gas and water are extracted to the surface. Gas is commonly separated from

  5. STUDIES ON THE USE OF CARBON DIOXIDE DISSOLVED IN REFRIGERATED BRINE FOR THE PRESERVATION OF WHOLE FISH

    E-Print Network [OSTI]

    STUDIES ON THE USE OF CARBON DIOXIDE DISSOLVED IN REFRIGERATED BRINE FOR THE PRESERVATION OF WHOLE in rockfish and chum salmon of dissolving carbon dioxide in brine. Storing the fish in the refrigerated brine treated with carbon dioxide inhibited the growth of the bacteria, retarded the rate at which the fish

  6. Chemical-equilibrium calculations for aqueous geothermal brines

    SciTech Connect (OSTI)

    Kerrisk, J.F.

    1981-05-01

    Results from four chemical-equilibrium computer programs, REDEQL.EPAK, GEOCHEM, WATEQF, and SENECA2, have been compared with experimental solubility data for some simple systems of interest with geothermal brines. Seven test cases involving solubilities of CaCO/sub 3/, amorphous SiO/sub 2/, CaSO/sub 4/, and BaSO/sub 4/ at various temperatures from 25 to 300/sup 0/C and in NaCl or HCl solutions of 0 to 4 molal have been examined. Significant differences between calculated results and experimental data occurred in some cases. These differences were traced to inaccuracies in free-energy or equilibrium-constant data and in activity coefficients used by the programs. Although currently available chemical-equilibrium programs can give reasonable results for these calculations, considerable care must be taken in the selection of free-energy data and methods of calculating activity coefficients.

  7. Experiments and modeling of variably permeable carbonate reservoir samples in contact with CO?-acidified brines

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

    Smith, Megan M.; Hao, Yue; Mason, Harris E.; Carroll, Susan A.

    2014-12-31

    Reactive experiments were performed to expose sample cores from the Arbuckle carbonate reservoir to CO?-acidified brine under reservoir temperature and pressure conditions. The samples consisted of dolomite with varying quantities of calcite and silica/chert. The timescales of monitored pressure decline across each sample in response to CO? exposure, as well as the amount of and nature of dissolution features, varied widely among these three experiments. For all samples cores, the experimentally measured initial permeability was at least one order of magnitude or more lower than the values estimated from downhole methods. Nondestructive X-ray computed tomography (XRCT) imaging revealed dissolution featuresmore »including “wormholes,” removal of fracture-filling crystals, and widening of pre-existing pore spaces. In the injection zone sample, multiple fractures may have contributed to the high initial permeability of this core and restricted the distribution of CO?-induced mineral dissolution. In contrast, the pre-existing porosity of the baffle zone sample was much lower and less connected, leading to a lower initial permeability and contributing to the development of a single dissolution channel. While calcite may make up only a small percentage of the overall sample composition, its location and the effects of its dissolution have an outsized effect on permeability responses to CO? exposure. The XRCT data presented here are informative for building the model domain for numerical simulations of these experiments but require calibration by higher resolution means to confidently evaluate different porosity-permeability relationships.« less

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

    E-Print Network [OSTI]

    Almasri, Dema A

    2013-07-03

    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. ...

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

    E-Print Network [OSTI]

    Wotipka, Samuel Alex

    2014-01-01

    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 ...

  10. 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 in the pore networks corresponding to three different sandstones. The simulations were used to study up

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

    SciTech Connect (OSTI)

    Olander, D.R.

    1984-08-01

    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.

  12. Brine Sampling and Evaluation Program 1992--1993 report and summary of BSEP data since 1982

    SciTech Connect (OSTI)

    Deal, D.E.; Abitz, R.J. [I. T. Corp., Carlsbad, NM (United States); Belski, D.S. [USDOE Albuquerque Operations Office, Carlsbad, NM (United States). Waste Isolation Pilot Plant Project Office

    1995-04-01

    This report is the last one that is currently scheduled in the sequence of reports of new data, and therefore, also includes summary comments referencing important data obtained by BSEP since 1983. These BSEP activities document and investigate the origins, hydraulic characteristics, extent, and composition of brine occurrences in the Permian Salado Formation and seepage of that brine into the excavations at the (WIPP) Waste Isolation Pilot Plant. A project concern is that enough brine might be present after sealing and closure to generate large quantities of hydrogen gas by corroding the metal in the waste drums and waste inventory. This report describes progress made during the calendar years 1992 and 1993 and focuses on four major areas: (1) monitoring of brine inflow, e.g., measuring brines recovered from holes drilled downward from the underground drifts (downholes), upward from the underground drifts (upholes), and from subhorizontal holes from the underground drifts; (2) observations of weeps in the Air Intake Shaft (AIS); (3) further characterization of brine geochemistry; and (4) additional characterization of the hydrologic conditions in the fractured zone beneath the excavations.

  13. Modeling Coupled THM Processes and Brine Migration in Salt at High Temperatures

    SciTech Connect (OSTI)

    Rutqvist, Jonny; Blanco-Martin, Laura; Molins, Sergi; Trebotich, David; Birkholzer, Jens

    2015-09-01

    In this report, we present FY2015 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. This is a combined milestone report related to milestone Salt R&D Milestone “Modeling Coupled THM Processes and Brine Migration in Salt at High Temperatures” (M3FT-15LB0818012) and the Salt Field Testing Milestone (M3FT-15LB0819022) to support the overall objectives of the salt field test planning.

  14. ASSESSMENT OF TECHNETIUM LEACHABILITY IN CEMENT STABILIZED BASIN 43 GROUNDWATER BRINE

    SciTech Connect (OSTI)

    COOKE GA; DUNCAN JB; LOCKREM LL

    2008-09-30

    This report is an initial report on the laboratory effort executed under RPP-PLAN-33338, Test Plan for the Assessment of Technetium Leachability in Cement-Stabilized Basin 43 Groundwater Brine. This report delineates preliminary data obtained under subcontract 21065, release 30, from the RJ Lee Group, Inc., Center for Laboratory Sciences. The report is predicated on CLS RPT-816, Draft Report: Assessment of Technetium Leachability in Cement Stabilized Basin 43 Groundwater Brine. This document will be revised on receipt of the final RJ Lee Group, Inc., Center for Laboratory Sciences report, which will contain data subjected to quality control and quality assurance criteria.

  15. 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.

    brine pool via in situ mass spectrometry Scott D. Wankel a , Samantha B. Joye b , Vladimir A. Samarkin b

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

    E-Print Network [OSTI]

    Zhou, Quanlin

    of resident brine caused by CCS operations require modeling/analysis tools of considerable complexity (Celia and may allow for effective pressure bleed-off in the storage reservoirs. This study presents, for uncertainty quantification, for parameter estimation, or for the optimization of pressure-management schemes

  17. NUMERICAL INVESTIGATION OF TEMPERATURE EFFECTS DURING THE INJECTION OF CARBON DIOXIDE INTO BRINE

    E-Print Network [OSTI]

    Cirpka, Olaf Arie

    NUMERICAL INVESTIGATION OF TEMPERATURE EFFECTS DURING THE INJECTION OF CARBON DIOXIDE INTO BRINE for the simulation of carbon dioxide injection into geological formations is currently an intensive field of research reservoir scenario. 1. INTRODUCTION Recent investigations of underground carbon dioxide storage

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

    E-Print Network [OSTI]

    Aeschbach-Hertig, Werner

    mantle production ratio. In the Kebrit Deep, located in the northern Red Sea, we found a helium excessConstraints on origin and evolution of Red Sea brines from helium and argon isotopes Gisela, the Discovery and the Kebrit Deep, were sampled and analyzed for helium and argon isotopes. We identified two

  19. 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 on Earth. We report on new studies of Don Juan Pond (DJP), which exists at the upper limit of ephemeral on Juan Pond (DJP), found at the lowest point in the South Fork of Upper Wright Valley, Antarctica (Figure

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

    E-Print Network [OSTI]

    Furrow, Brendan Eugene

    2005-11-01

    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...

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

    E-Print Network [OSTI]

    Jackson, Robert B.

    of stray gas, metal-rich formation brines, and hydrau- lic fracturing and/or flowback fluids to drinking- ical evidence from northeastern Pennsylvania showing that path- ways, unrelated to recent drilling rapid shale-gas development in the re- gion; however, the presence of these fluids suggests conductive

  2. 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

    2004-05-01

    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.

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

    SciTech Connect (OSTI)

    Goddard, William

    2012-11-30

    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.

  4. 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

    2013-05-03

    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.

  5. 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.

    1991-01-01

    METHOD FOR CLEANING OILFIELD BRINES WITH CARBON DIOXIDE C. T. LITTLE A. F. SEIBERT Research Engineer Technical Manager Amoco Oil Company Separations Research Program Naperville, Illinois The University of Texas Austin, Texas ABSTRACT Water... are used to purify these waters. However, if stricter discharge limits are imposed by the Environmental Protection Agency, the gas flotation method is likely to be inadequate. A new process was developed which utilizes carbon dioxide to clean oilfield...

  6. Targeted Pressure Management During CO2 Sequestration: Optimization of Well Placement and Brine Extraction

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

    Cihan, Abdullah; Birkholzer, Jens; Bianchi, Marco

    2014-12-31

    Large-scale pressure increases resulting from carbon dioxide (CO2) injection in the subsurface can potentially impact caprock integrity, induce reactivation of critically stressed faults, and drive CO2 or brine through conductive features into shallow groundwater. Pressure management involving the extraction of native fluids from storage formations can be used to minimize pressure increases while maximizing CO2 storage. However, brine extraction requires pumping, transportation, possibly treatment, and disposal of substantial volumes of extracted brackish or saline water, all of which can be technically challenging and expensive. This paper describes a constrained differential evolution (CDE) algorithm for optimal well placement and injection/ extractionmore »control with the goal of minimizing brine extraction while achieving predefined pressure contraints. The CDE methodology was tested for a simple optimization problem whose solution can be partially obtained with a gradient-based optimization methodology. The CDE successfully estimated the true global optimum for both extraction well location and extraction rate, needed for the test problem. A more complex example application of the developed strategy was also presented for a hypothetical CO2 storage scenario in a heterogeneous reservoir consisting of a critically stressed fault nearby an injection zone. Through the CDE optimization algorithm coupled to a numerical vertically-averaged reservoir model, we successfully estimated optimal rates and locations for CO2 injection and brine extraction wells while simultaneously satisfying multiple pressure buildup constraints to avoid fault activation and caprock fracturing. The study shows that the CDE methodology is a very promising tool to solve also other optimization problems related to GCS, such as reducing ‘Area of Review’, monitoring design, reducing risk of leakage and increasing storage capacity and trapping.« less

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

    DOE Patents [OSTI]

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

    1994-11-22

    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. 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)

    1994-11-22

    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.

  9. 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

    2014-12-31

    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

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

    SciTech Connect (OSTI)

    Burnett, David

    2012-12-31

    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”

  11. The sup 36 Cl ages of the brines in the Magadi-Natron basin, east Africa

    SciTech Connect (OSTI)

    Kaufman, A.; Margaritz, M.A.; Hollos, G. ); Paul, M.; Boaretto, E. ); Hillaire-Marcel, C. ); Taieb, M. )

    1990-10-01

    The depression in the East African Rift which includes both Lake Magadi and Lake Natron forms a closed basin within which almost all the dissolved chloride originates in precipitation, since there is no important source of very ancient sedimentary chloride. This provides an ideal setting for the evaluation of the {sup 36}Cl methodology as a geochemical and hydrological tracer. The main source of recent water, as represented by the most dilute samples measured, is characterized by a {sup 36}Cl/Cl ratio of 2.5 {times} 10{sup {minus}14}, in agreement with the calculated value expected in precipitation. Surface evaporation increases the chlorinity of the local freshwater inflow by about a factor of 110 without changing the isotopic ratio, indicating that little chloride enters the system in the form of sediment leachate. A second type of brine found in the basin occurs in a hot deep groundwater reservoir and is characterized by lower {sup 36}Cl/Cl ratios (<1.2 {times} 10{sup {minus}14}). By comparing this value with the 2.5 {times} 10{sup {minus}14} in recent recharge, one obtains an approximate salt accumulation age of 760 Ka which is consistent with thee time of the first appearance of the lake. These older brines also have lower {sup 18}O and {sup 2}H values which indicate that they were recharged during a climatically different era. The {sup 36}Cl/Cl ratios in the inflowing waters and in the accumulated brine, together with the known age of the Lake Magadi basin, may be used to estimate the importance of the hypogene and epigene, as opposed to the meteoric, mode of {sup 36}Cl production. Such a calculation shows that the hypogene and epigene processes together contribute less than 6% of the total {sup 36}Cl present in the lake.

  12. Brine migration test for Asse Mine, Federal Republic of Germany: final test plan

    SciTech Connect (OSTI)

    Not Available

    1983-07-01

    The United States and the Federal Republic of Germany (FRG) will conduct a brine migration test in the Asse Salt Mine in the FRG as part of the US/FRG Cooperative Radioactive Waste Management Agreement. Two sets of two tests each will be conducted to study both liquid inclusion migration and vapor migration in the two salt types chosen for the experiments: (1) pure salt, for its characteristics similar to the salt that might occur in potential US repositories, and (2) transitional salt, for its similarity to the salt that might occur in potential repositories in Germany.

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

    SciTech Connect (OSTI)

    1997-10-01

    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. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic Leakage into an Unconfined, Oxidizing Limestone Aquifer

    SciTech Connect (OSTI)

    Bacon, Diana H. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Dai, Zhenxue [Los Alamos National Laboratory, Los Alamos, NM (United States); Zheng, Liange [Lawrence Berkeley National Laboratory, Berkeley, CA (United States)

    2014-12-31

    An important risk at CO2 storage sites is the potential for groundwater quality impacts. As part of a system to assess the potential for these impacts a geochemical scaling function has been developed, based on a detailed reactive transport model of CO2 and brine leakage into an unconfined, oxidizing carbonate aquifer. Stochastic simulations varying a number of geochemical parameters were used to generate a response surface predicting the volume of aquifer that would be impacted with respect to regulated contaminants. The brine was assumed to contain several trace metals and organic contaminants. Aquifer pH and TDS were influenced by CO2 leakage, while trace metal concentrations were most influenced by the brine concentrations rather than adsorption or desorption on calcite. Organic plume sizes were found to be strongly influenced by biodegradation.

  15. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic Leakage into an Unconfined, Oxidizing Limestone Aquifer

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

    Bacon, Diana H.; Dai, Zhenxue; Zheng, Liange

    2014-12-31

    An important risk at CO2 storage sites is the potential for groundwater quality impacts. As part of a system to assess the potential for these impacts a geochemical scaling function has been developed, based on a detailed reactive transport model of CO2 and brine leakage into an unconfined, oxidizing carbonate aquifer. Stochastic simulations varying a number of geochemical parameters were used to generate a response surface predicting the volume of aquifer that would be impacted with respect to regulated contaminants. The brine was assumed to contain several trace metals and organic contaminants. Aquifer pH and TDS were influenced by CO2more »leakage, while trace metal concentrations were most influenced by the brine concentrations rather than adsorption or desorption on calcite. Organic plume sizes were found to be strongly influenced by biodegradation.« less

  16. Brine migration test report: Asse Salt Mine, Federal Republic of Germany: Technical report

    SciTech Connect (OSTI)

    Coyle, A.J.; Eckert, J.; Kalia, H.

    1987-01-01

    This report presents a summary of Brine Migration Tests which were undertaken at the Asse mine of the Federal Republic of Germany (FRG) under a bilateral US/FRG agreement. This experiment simulates a nuclear waste repository at the 800-m (2624-ft) level of the Asse salt mine in the Federal Republic of Germany. This report describes the Asse salt mine, the test equipment, and the pretest properties of the salt in the mine and in the vicinity of the test area. Also included are selected test data (for the first 28 months of operation) on the following: brine migration rates, thermomechaical behavior of the salt (including room closure, stress reading, and thermal profiles), borehole gas pressures, and borehole gas analyses. In addition to field data, laboratory analyses of pretest salt properties are included in this report. The operational phase of these experiments was completed on October 4, 1985, with the commencement of cooldown and the start of posttest activities. 7 refs., 68 figs., 48 tabs.

  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

    2014-08-14

    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

    2014-09-01

    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. 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)

    1995-11-01

    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.

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

    E-Print Network [OSTI]

    Schechter, David S.

    - 31 - 2. INVESTIGATION OF CRUDE OIL/BRINE/ROCK INTERACTION 2.1 STUDY OF WATERFLOODING PROCESS plays an important role in oil recovery from the naturally fractured Spraberry Trend Area. Therefore are important. We examined these issues by performing static and dynamic imbibition experiments. Oil recoveries

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

    E-Print Network [OSTI]

    Firoozabadi, Abbas

    the reservoir brine. These crudes are obtained from a large oil field with stock tank oil viscositiesMacro- and Microscale Waterflooding Performances of Crudes which form w/o Emulsions upon Mixing ABSTRACT: We study the micro- and macroscale waterflooding performances of unusual crudes which naturally

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

    E-Print Network [OSTI]

    Banks, David

    that the major element chemistry of these fluids is comparable with that of evolved oil-field brines, and fluids of mineralising palaeoflu- ids is a complex function of the basin chemistry, subsequent modifications due to water by the evaporation of seawater or a seawater­meteoric water mixture past the point of halite precipitation. The major

  3. 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

    2005-01-01

    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.

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

    SciTech Connect (OSTI)

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

    2013-10-01

    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 %.

  5. Reduced order models for prediction of groundwater quality impacts from CO? and brine leakage

    SciTech Connect (OSTI)

    Zheng, Liange; Carroll, Susan; Bianchi, Marco; Mansoor, Kayyum; Sun, Yunwei; Birkholzer, Jens

    2014-12-31

    A careful assessment of the risk associated with geologic CO? storage is critical to the deployment of large-scale storage projects. A potential risk is the deterioration of groundwater quality caused by the leakage of CO? and brine leakage from deep subsurface reservoirs. In probabilistic risk assessment studies, numerical modeling is the primary tool employed to assess risk. However, the application of traditional numerical models to fully evaluate the impact of CO? leakage on groundwater can be computationally complex, demanding large processing times and resources, and involving large uncertainties. As an alternative, reduced order models (ROMs) can be used as highly efficient surrogates for the complex process-based numerical models. In this study, we represent the complex hydrogeological and geochemical conditions in a heterogeneous aquifer and subsequent risk by developing and using two separate ROMs. The first ROM is derived from a model that accounts for the heterogeneous flow and transport conditions in the presence of complex leakage functions for CO? and brine. The second ROM is obtained from models that feature similar, but simplified flow and transport conditions, and allow for a more complex representation of all relevant geochemical reactions. To quantify possible impacts to groundwater aquifers, the basic risk metric is taken as the aquifer volume in which the water quality of the aquifer may be affected by an underlying CO? storage project. The integration of the two ROMs provides an estimate of the impacted aquifer volume taking into account uncertainties in flow, transport and chemical conditions. These two ROMs can be linked in a comprehensive system level model for quantitative risk assessment of the deep storage reservoir, wellbore leakage, and shallow aquifer impacts to assess the collective risk of CO? storage projects.

  6. Reduced order models for prediction of groundwater quality impacts from CO? and brine leakage

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

    Zheng, Liange; Carroll, Susan; Bianchi, Marco; Mansoor, Kayyum; Sun, Yunwei; Birkholzer, Jens

    2014-12-31

    A careful assessment of the risk associated with geologic CO? storage is critical to the deployment of large-scale storage projects. A potential risk is the deterioration of groundwater quality caused by the leakage of CO? and brine leakage from deep subsurface reservoirs. In probabilistic risk assessment studies, numerical modeling is the primary tool employed to assess risk. However, the application of traditional numerical models to fully evaluate the impact of CO? leakage on groundwater can be computationally complex, demanding large processing times and resources, and involving large uncertainties. As an alternative, reduced order models (ROMs) can be used as highlymore »efficient surrogates for the complex process-based numerical models. In this study, we represent the complex hydrogeological and geochemical conditions in a heterogeneous aquifer and subsequent risk by developing and using two separate ROMs. The first ROM is derived from a model that accounts for the heterogeneous flow and transport conditions in the presence of complex leakage functions for CO? and brine. The second ROM is obtained from models that feature similar, but simplified flow and transport conditions, and allow for a more complex representation of all relevant geochemical reactions. To quantify possible impacts to groundwater aquifers, the basic risk metric is taken as the aquifer volume in which the water quality of the aquifer may be affected by an underlying CO? storage project. The integration of the two ROMs provides an estimate of the impacted aquifer volume taking into account uncertainties in flow, transport and chemical conditions. These two ROMs can be linked in a comprehensive system level model for quantitative risk assessment of the deep storage reservoir, wellbore leakage, and shallow aquifer impacts to assess the collective risk of CO? storage projects.« less

  7. REE Sorption Study on sieved -50 +100 mesh fraction of Media #1 in Brine #1 with Different Starting pH's at 70C

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

    Gary Garland

    2015-09-29

    This is a continuation of the REE sorption study for shaker bath tests on 2g media #1 in 150mL brine #1 with different starting pH's at 70C. In a previous submission we reported data for shaker bath tests for brine #1 with starting pH's of 3.5, 4.5 and 5.5. In this submission we these pH's compared to starting brine #1 pH's of 6, and 7.

  8. Benefits and Costs of Brine Extraction for Increasing Injection Efficiency In geologic CO2 Sequestration

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

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

    2014-12-31

    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 additionalmore »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).« less

  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.

    2014-12-31

    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. 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.

    2014-01-01

    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).

  11. Evaluation of brine disposal from the Bryan Mound site of the strategic petroleum reserve program. Final report

    SciTech Connect (OSTI)

    Case, Robert J.; Chittenden, Jr, Mark E.; Harper, Jr, Donald E.; Kelly, Jr, Francis J.; Loeblich, Laurel A.; McKinney, Larry D.; Minello, Thomas J.; Park, E. Taisoo; Randall, Robert E.; Slowey, J. Frank

    1981-01-01

    On March 10, 1980, the Department of Energy's Strategic Petroleum Reserve Program began leaching the Bryan Mound salt dome and discharging the resulting brine into the coastal waters off Freeport, Texas. During the months of March and April, a team of scientists and engineers from Texas A and M University conducted an intensive environmental study of the area surrounding the diffuser site. A pipeline has been laid from the Bryan Mound site to a location 12.5 statute miles (20 km) offshore. The last 3060 ft (933 m) of this pipeline is a 52-port diffuser through which brine can be discharged at a maximum rate of 680,000 barrels per day. Initially, 16 ports were open which permitted a maximum discharge rate of 350,000 barrels per day and a continuous brine discharge was achieved on March 13, 1980. The purpose of this report is to describe the findings of the project team during the intensive postdisposal study period of March and April, 1980. The major areas of investigation are physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management.

  12. Epinephrine for Anaphylaxis: Underutilized and Unavailable

    E-Print Network [OSTI]

    Dudley, Larissa S.; Mansour, Madonna I.; Merlin, Mark A.

    2015-01-01

    commonly triggered by foods, medications, and insect stings.food reactions averaged 25-30 minutes, 10-15 minutes for insectfoods that cause respiratory symptoms, while anaphylaxis in the elderly manifests with cardiovascular symptoms, most often triggered by medications or insect

  13. Technical and economic feasibility of salt-gradient solar ponds at the Truscott Brine Lake of the Red River Chloride Control Project. A report to the House-Senate Committee on Appropriations of the Ninety-Seventh Congress

    SciTech Connect (OSTI)

    Not Available

    1982-09-01

    The Truscott Brine Lake is being constructed to impound highly brackish water from a number of sources which would normally flow into the Wichita River, a tributary of the Red River in Knox County, Texas. A 35.4-km (22-mile) pipeline is being constructed to carry the brines from their primary source to the Truscott Brine Lake site. The reservoir is designed to contain 100 years of brine emissions from three chloride emission areas in the Wichita River Basin. The solar ponds and power generating facilities would be located in the Bluff Creek Arm of Truscott Brine Lake. The Truscott Brine Lake study includes: survey of suitability of Truscott Lake site, review of solar pond technology, preconceptual design of solar salt pond power plant, and economic evaluation.

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

    SciTech Connect (OSTI)

    David B. Burnett; Mustafa Siddiqui

    2006-12-29

    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.

  15. Evaluation of brine disposal from the Bryan Mound site of the Strategic Petroleum Reserve Program. Final report

    SciTech Connect (OSTI)

    Hann, R.W. Jr.; Randall, R.E.

    1980-12-01

    The purpose of this report is to describe the environmental conditions found by the principal investigators during the predisposal study conducted from September 1977 through February 1980 prior to the start of brine discharge in March 1980. The major areas of investigation are physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management. Volume 1 describes the results of the predisposal study, and it is divided into eight chapters entitled: Physical Oceanography, Analysis of the Discharge Plume, Water and Sediment Quality, Nekton, Benthos, Zooplankton, Phytoplankton, and Data Management. Volume 2 consists of appendices which contain additional supporting data in the form of figures and tables.

  16. Evaluation of brine disposal from the Bryan Mound site of the Strategic Petroleum Reserve Program. Final report

    SciTech Connect (OSTI)

    Hann, R.W. Jr.; Randall, R.E. (eds.)

    1980-12-01

    The purpose of this report is to describe the environmental conditions found by the principal investigators during the predisposal study conducted from September 1977 through February 1980 prior to the start of brine discharge in March 1980. The major areas of investigation are physical oceanography, analysis of the discharge plume, water and sediment quality, nekton, benthos, phytoplankton, zooplankton, and data management. Volume 1 describes the results of the predisposal study, and it is divided into eight chapters entitled: Physical Oceanography, Analsyis of the Discharge Plume, Water and Sediment Quality, Nekton, Benthos, Zooplankton, Phytoplankton, and Data Management. Volume 2 consists of appendices which contain additional supporting data in the form of figures and tables.

  17. 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.

    2013-08-01

    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.

  18. GEOCHEMICAL INVESTIGATIONS OF CO?-BRINE-ROCK INTERACTIONS OF THE KNOX GROUP IN THE ILLINOIS BASIN

    SciTech Connect (OSTI)

    Yoksoulian, Lois; Berger, Peter; Freiburg, Jared; Butler, Shane; Leetaru, Hannes

    2014-09-30

    Increased output of greenhouse gases, particularly carbon dioxide (CO?), into the atmosphere from anthropogenic sources is of great concern. A potential technology to reduce CO? emissions is geologic carbon sequestration. This technology is currently being evaluated in the United States and throughout the world. The geology of the Illinois Basin exhibits outstanding potential as a carbon sequestration target, as demonstrated by the ongoing Illinois Basin – Decatur Project that is using the Mt. Simon Sandstone reservoir and Eau Claire Shale seal system to store and contain 1 million tonnes of CO?. The Knox Group-Maquoketa Shale reservoir and seal system, located stratigraphically above the Mt. Simon Sandstone-Eau Claire Shale reservoir and seal system, has little economic value as a resource for fossil fuels or as a potable water source, making it ideal as a potential carbon sequestration target. In order for a reservoir-seal system to be effective, it must be able to contain the injected CO? without the potential for the release of harmful contaminants liberated by the reaction between CO?-formation fluids and reservoir and seal rocks. This study examines portions of the Knox Group (Potosi Dolomite, Gunter Sandstone, New Richmond Sandstone) and St. Peter Sandstone, and Maquoketa Shale from various locations around the Illinois Basin. A total of 14 rock and fluid samples were exposed to simulated sequestration conditions (9101–9860 kPa [1320–1430 psi] and 32°–42°C [90°– 108°F]) for varying amounts of time (6 hours to 4 months). Knox Group reservoir rocks exhibited dissolution of dolomite in the presence of CO? as indicated by petrographic examination, X-ray diffraction analysis, and fluid chemistry analysis. These reactions equilibrated rapidly, and geochemical modeling confirmed that these reactions reached equilibrium within the time frames of the experiments. Pre-reaction sample mineralogy and postreaction fluid geochemistry from this study suggests only limited potential for the release of United States Environmental Protection Agency regulated inorganic contaminants into potable water sources. Short-term core flood experiments further verify that the carbonate reactions occurring in Knox Group reservoir samples reach equilibrium rapidly. The core flood experiments also lend insight to pressure changes that may occur during CO? injection. The Maquoketa Shale experiments reveal that this rock is initially chemically reactive when in contact with CO? and brine. However, due to the conservative nature of silicate and clay reaction kinetics and the rapid equilibration of carbonate reactions that occur in the shale, these reactions would not present a significant risk to the competency of the shale as an effective seal rock.

  19. REE Sorption Study for Media #1 and Media #2 in Brine #1 and #2 at different Liquid to Solid Ratio's at Ambient Temperature

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

    Gary Garland

    2015-03-27

    This data set shows the different loading capacities of Media #1 and Media #2 in a high and low salt content brine matrix at different liquid to solid ratio's. These data sets are shaker bath tests on media #1 and media #2 in brine's #1 and #2 at 500mL-.5g(1000-1 ratio), 150mL-.75g(200-1 ratio), and 150mL-2.5g(60-1 ratio) at ambient temperature.

  20. Uncertainty and sensitivity analyses for gas and brine migration at the Waste Isolation Pilot Plant, May 1992

    SciTech Connect (OSTI)

    Helton, J.C. [Arizona State Univ., Tempe, AZ (United States); Bean, J.E. [New Mexico Engineering Research Inst., Albuquerque, NM (United States); Butcher, B.M. [Sandia National Labs., Albuquerque, NM (United States); Garner, J.W.; Vaughn, P. [Applied Physics, Inc., Albuquerque, NM (United States); Schreiber, J.D. [Science Applications International Corp., Albuquerque, NM (United States); Swift, P.N. [Tech Reps, Inc., Albuquerque, NM (United States)

    1993-08-01

    Uncertainty and sensitivity analysis techniques based on Latin hypercube sampling, partial correlation analysis, stepwise regression analysis and examination of scatterplots are used in conjunction with the BRAGFLO model to examine two phase flow (i.e., gas and brine) at the Waste Isolation Pilot Plant (WIPP), which is being developed by the US Department of Energy as a disposal facility for transuranic waste. The analyses consider either a single waste panel or the entire repository in conjunction with the following cases: (1) fully consolidated shaft, (2) system of shaft seals with panel seals, and (3) single shaft seal without panel seals. The purpose of this analysis is to develop insights on factors that are potentially important in showing compliance with applicable regulations of the US Environmental Protection Agency (i.e., 40 CFR 191, Subpart B; 40 CFR 268). The primary topics investigated are (1) gas production due to corrosion of steel, (2) gas production due to microbial degradation of cellulosics, (3) gas migration into anhydrite marker beds in the Salado Formation, (4) gas migration through a system of shaft seals to overlying strata, and (5) gas migration through a single shaft seal to overlying strata. Important variables identified in the analyses include initial brine saturation of the waste, stoichiometric terms for corrosion of steel and microbial degradation of cellulosics, gas barrier pressure in the anhydrite marker beds, shaft seal permeability, and panel seal permeability.

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

    SciTech Connect (OSTI)

    Not Available

    1993-09-01

    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.

  2. 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.

    1996-12-31

    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.

  3. 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

    , yet enrichment in water sources is most often not associated with anomalously high uranium or thorium Rift Valley: Enrichment, retardation, and mixing TAMAR MOISE, ABRAHAM STARINSKY, AMITAI KATZ surrounding rocks into the brine end member. 228 Ra/226 Ra ratios are exceptionally low 0.07 to 0.9, mostly

  4. 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.

    2009-11-01

    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.

  5. The Space of Metric Spaces

    E-Print Network [OSTI]

    *D. J. Kelleher

    2013-11-16

    The Space of Metric Spaces. *D. J. Kelleher1. 1Department of Mathematics. University of Connecticut. UConn— SIGMA Seminar — Fall 2013. D. J. Kelleher.

  6. 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.

    2013-09-16

    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.

  7. 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

    2006-08-16

    Sedimentary basins can contain close to 20% by volume pore fluids that are commonly classified as brines. These fluids can become undersaturated with respect to calcite as a result of processes such as migration, dispersive ...

  8. 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.

    2013-11-01

    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.

  9. Space Kimchi

    E-Print Network [OSTI]

    Hacker, Randi; Oborny, Jaimie; Tsutsui, William

    2006-07-05

    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...

  10. 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.

    2013-04-01

    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.

  11. 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.

    2011-02-15

    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.

  12. 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

    2015-04-20

    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.

  13. 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.

    2013-11-14

    Reliable pH estimation is essential 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 of formation reactivities conducted under geologic CO2 sequestration (GCS) conditions have relied on thermodynamic modeling to estimate pH; however, the accuracy of these model predictions is typically uncertain. In this study, we expanded the measurement range of a spectrophotometric method for pH determination, and we applied the method to measure the pH in batch-reactor experiments utilizing rock samples from five ongoing GCS demonstration projects. A combination of color-changing pH indicators, bromophenol blue and bromocresol green, was shown to enable measurements over the pH range of 2.5-5.2. In-situ pH measurements were compared with pH values calculated using geochemical models. The effect of different thermodynamic databases on the accuracy of model prediction was evaluated. For rocks comprised of carbonate, siltstone, 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 proton consuming and producing reactions that occur between the basalt minerals and CO2-saturated brine solutions.

  14. Unavailable Data Sources in Mediator Based Applications Philippe Bonnet

    E-Print Network [OSTI]

    Tomasic, Anthony

    information system a mediator accesses data sources located in the di erent services to provide doctors a network of public and private institutions a mediator accesses the data sources located in each in the application. New data sources are needed due to the evolution of the hospital information system: services

  15. 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.

  16. 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.

    2013-03-31

    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.

  17. 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

    2015-01-01

    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...

  18. 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

    2008-11-25

    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.

  19. Preliminary performance assessment for the Waste Isolation Pilot Plant, December 1992. Volume 5, Uncertainty and sensitivity analyses of gas and brine migration for undisturbed performance

    SciTech Connect (OSTI)

    Not Available

    1993-08-01

    Before disposing of transuranic radioactive waste in the Waste Isolation Pilot Plant (WIPP), the United States Department of Energy (DOE) must evaluate compliance with applicable long-term regulations of the United States Environmental Protection Agency (EPA). Sandia National Laboratories is conducting iterative performance assessments (PAs) of the WIPP for the DOE to provide interim guidance while preparing for a final compliance evaluation. This volume of the 1992 PA contains results of uncertainty and sensitivity analyses with respect to migration of gas and brine from the undisturbed repository. Additional information about the 1992 PA is provided in other volumes. Volume 1 contains an overview of WIPP PA and results of a preliminary comparison with 40 CFR 191, Subpart B. Volume 2 describes the technical basis for the performance assessment, including descriptions of the linked computational models used in the Monte Carlo analyses. Volume 3 contains the reference data base and values for input parameters used in consequence and probability modeling. Volume 4 contains uncertainty and sensitivity analyses with respect to the EPA`s Environmental Standards for the Management and Disposal of Spent Nuclear Fuel, High-Level and Transuranic Radioactive Wastes (40 CFR 191, Subpart B). Finally, guidance derived from the entire 1992 PA is presented in Volume 6. Results of the 1992 uncertainty and sensitivity analyses indicate that, conditional on the modeling assumptions and the assigned parameter-value distributions, the most important parameters for which uncertainty has the potential to affect gas and brine migration from the undisturbed repository are: initial liquid saturation in the waste, anhydrite permeability, biodegradation-reaction stoichiometry, gas-generation rates for both corrosion and biodegradation under inundated conditions, and the permeability of the long-term shaft seal.

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

    SciTech Connect (OSTI)

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

    2015-03-27

    Thermodynamic property calculations of mixtures containing carbon dioxide (CO2) 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 [1]. In this report, we recommend two different models for enthalpy calculations: the CPA equation of state by Li and Firoozabadi [2], and the CO2 activity coefficient model by Duan and Sun [3]. 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 CO2, pure water, and both CO2-rich and aqueous (H2O-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 CO2. It can be combined with another model for the brine enthalpy to calculate the molar enthalpy of H2O-CO2-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.

  1. SPACE DAILY SPACE WAR TERRA DAILY MARS DAILY SPACE MART SPACE TRAVEL World's Smallest Universal Material

    E-Print Network [OSTI]

    Espinosa, Horacio D.

    SPACE DAILY SPACE WAR TERRA DAILY MARS DAILY SPACE MART SPACE TRAVEL NANO TECH World's Smallest, professor of mechanical Get Our Free Newsletters Via Email Space - War - Earth - Energy - China your email yes Search All Of Our Sites In One Search SpaceDaily - SpaceWar - TerraDaily Search Horacio D

  2. 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

  3. 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

    2011-01-01

    . If the threshold pressure is exceeded, brine flow rates are dependent on various hydraulic (and other) prop- erties occurs outside of the well casing, e.g., in a permeable fracture zone between the well cement

  4. Social Media: Space Weather #SpaceWeather

    E-Print Network [OSTI]

    ://www.swpc.noaa.gov/impacts/spaceweatherandgpssystems #SpaceWeather #12;Space Weather Impacts on the Power Grid Facebook The electric power grid. To learn about space weather and impacts to the electric grid visit http on the Power Grid Space Weather and the Aurora Borealis What are Solar Flares? What are Coronal Mass

  5. 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.

    1983-02-01

    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.

  6. The deep hydrogeologic flow system underlying the Oak Ridge Reservation -- Assessing the potential for active groundwater flow and origin of the brine

    SciTech Connect (OSTI)

    Nativ, R.; Halleran, A.; Hunley, A.

    1997-08-01

    The deep hydrogeologic system underlying the Oak Ridge Reservation (ORR) contains contaminants such as radionuclides, heavy metals, nitrates, and organic compounds. The groundwater in the deep system is saline and has been considered to be stagnant in previous studies. This study was designed to address the following questions: is groundwater in the deep system stagnant; is contaminant migration controlled by diffusion only or is advection a viable mechanism; where are the potential outlet points? On the basis of existing and newly collected data, the nature of saline groundwater flow and potential discharge into shallow, freshwater systems was assessed. Data used for this purpose included (1) spatial and temporal pressures and hydraulic heads measured in the deep system, (2) hydraulic parameters of the formations in question, (3) spatial and temporal temperature variations at depth, and (4) spatial and temporal chemical and isotopic composition of the saline groundwater. The observations suggest that the saline water contained at depth is old but not isolated (in terms of recharge and discharge) from the overlying active, freshwater-bearing units. Influx of recent water does occur. Groundwater volumes involved in this flow are likely to be small. The origin of the saline groundwater was assessed by using existing and newly acquired chemical and isotopic data. The proposed model that best fits the data is modification of residual brine from which halite has been precipitated. Other models, such as ultrafiltration and halite dissolution, were also evaluated.

  7. Normal, Not Paracompact Spaces

    E-Print Network [OSTI]

    Fleissner, William G.

    1982-07-01

    We describe some recently constructed counterexamples in general topology, including a normal, nonmetrizable Moore space, a normal para-Lindelof, not paracompact space, and a normal, screenable, not paracompact space....

  8. 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

    1992-08-01

    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.

  9. Sculpting space through sound

    E-Print Network [OSTI]

    Nakagawa, Junko, 1975-

    2002-01-01

    How does one experience space? What kind of information do humans collect in the process of constructing space in their mind? How does one begin to understand volume, light, texture, material, smell and sense of space? The ...

  10. 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)

  11. Social Media: Space Weather #SpaceWeather

    E-Print Network [OSTI]

    causing blackouts in rare cases. To learn about space weather and impacts to the electric grid visit on the Power Grid Space Weather and the Aurora Borealis What are Solar Flares? What are Coronal Mass we do. Satellite communications, GPS applications, and the electric power grid provide the backbone

  12. 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...

  13. Senior Space Camp 2015, Andya Space Center, Norway Senior Space Camp 2015

    E-Print Network [OSTI]

    Gerhardy, Philipp

    Senior Space Camp 2015, Andøya Space Center, Norway Senior Space Camp 2015 Arrangører: Nasjonalt deltakere Sted: Andøya Space Center (ASC), Andøya, Norway Undervisning: Programmet er delt mellom, Andøya Space Center, Norway FORELESERE / ADMINISTRASJON Tittel Etternavn Fornavn Initialer Organisasjon

  14. TANK SPACE OPTIONS REPORT

    SciTech Connect (OSTI)

    WILLIS WL; AHRENDT MR

    2009-08-11

    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.

  15. 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

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

    E-Print Network [OSTI]

    Anand, Mahesh

    UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP ESA Lunar Lander ­ L-DEPP C.J. Owen and D.O. Kataria UCL/MSSL #12;UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP is LEIA necessary? · Potential UK benefits · Summary #12;UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE

  17. Matter: Space without Time

    E-Print Network [OSTI]

    Yousef Ghazi-Tabatabai

    2012-11-19

    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. 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...

  19. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Released: September, 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*...

  20. Newtonian Lorentz Metric Spaces

    E-Print Network [OSTI]

    Costea, Serban

    2011-01-01

    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.

  1. AB Space Engine

    E-Print Network [OSTI]

    Alexander Bolonkin

    2008-03-02

    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.

  2. Passive solar space heating

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1980-01-01

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

  3. Neutron Tomography and Space

    E-Print Network [OSTI]

    Egbert, Hal; Walker, Ronald; Flocchini, R.

    2007-01-01

    Kevin Shields, “Optimization of neutron tomography for rapidNEUTRON TOMOGRAPHY AND SPACE Hal Egbert, Ronald Walker, R.industrial applications[1]. Neutron Computed Tomography was

  4. Contestation of Space

    E-Print Network [OSTI]

    Alkhalili, Nura

    2012-01-01

    city and a neighboring refugee camp. It seeks to narrate thechange, and the neighboring refugee camp. The public parkoccurring in Ramallah between refugee and non-refugee space.

  5. Multimegawatt space power reactors

    SciTech Connect (OSTI)

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

    1989-01-01

    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.

  6. Space Fiesta - 1 

    E-Print Network [OSTI]

    Unknown

    2011-08-17

    We study the geometric classi?cation of Banach spaces via Lipschitz, uniformly continuous, and coarse mappings. We prove that a Banach space which is uniformly homeomorphic to a linear quotient of lp is itself a linear quotient of lp when p<2...

  7. AB Space Engine

    E-Print Network [OSTI]

    Bolonkin, Alexander

    2008-01-01

    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 b...

  8. Moduli Spaces and Grassmannian

    E-Print Network [OSTI]

    Jia-Ming Liou; Albert Schwarz

    2012-04-12

    We calculate the homomorphism of the cohomology induced by the Krichever map of moduli spaces of curves into infinite-dimensional Grassmannian. This calculation can be used to compute the homology classes of cycles on moduli spaces of curves that are defined in terms of Weierstrass points.

  9. SPACE TECHNOLOGY Actual Estimate

    E-Print Network [OSTI]

    technology readiness of new missions, mitigate their technological risks, improve the quality of cost estimates, and thereby contribute to better overall mission cost management..." Space Technology investmentsSPACE TECHNOLOGY TECH-1 Actual Estimate Budget Authority (in $ millions) FY 2011 FY 2012 FY 2013 FY

  10. Atoms for space

    SciTech Connect (OSTI)

    Buden, D.

    1990-10-01

    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.

  11. 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 Summer School An Introduction to the Structure of the Magnetosphere Prof. Chris Owen Mullard Space 2012 #12;UCL DEPARTMENT OF SPACE & CLIMATE PHYSICS SPACE PLASMA PHYSICS GROUP 18th September 2012 STFC

  12. Quotients of Metric Spaces

    E-Print Network [OSTI]

    Herman, Robert A.

    1968-01-01

    . 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...

  13. Total Space Heat-

    Gasoline and Diesel Fuel Update (EIA)

    Survey: Energy End-Use Consumption Tables Total Space Heat- ing Cool- ing Venti- lation Water Heat- ing Light- ing Cook- ing Refrig- eration Office Equip- ment Com- puters Other...

  14. Notes on sexuality & space

    E-Print Network [OSTI]

    Jacobson, Samuel Ray

    2013-01-01

    Very little has been written on sexuality in architectural scholarship. Sexuality & Space (Princeton Architectural Press, 1992) contains the proceedings of an eponymous 1990 conference at Princeton University, and was both ...

  15. Saving Space in China

    E-Print Network [OSTI]

    Hacker, Randi

    2013-09-09

    Broadcast Transcript: The Chinese are geniuses at utilizing every inch of space. In a country that is historically overcrowded, this skill is important for survival. Chinese vegetable gardens are miracles of permaculture layout: small plants nestle...

  16. Space Shuttle Program Status

    E-Print Network [OSTI]

    Waliser, Duane E.

    Payload: 36th ISS flight (ULF6), EXPRESS Logistics Carrier 3 (ELC3), Alpha Magnetic Spectrometer (AMS;8 Transition #12;9 Major Space Shuttle Program Facilities Reusable Solid Rocket Motor ATK Thiokol Propulsion

  17. Commutators on Banach Spaces 

    E-Print Network [OSTI]

    Dosev, Detelin

    2010-10-12

    . In particular, we will focus our attention to the spaces $\\lambda I and $\\linf$. The main results are that the commutators on $\\ell_1$ are the operators not of the form $\\lambda I + K$ with $\\lambda\

  18. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Rathbun, Julie A.

    ,,/ NASA National Aeronautics and Space Administration Lyndon B. Johnson Space Center Houston by the National Aeronautics and Space Administration ii Hosted by the National Academy of Sclences for library, abstract service, educational, or research purposes; however, republication of any paper

  19. China's Space Robotic Arms Programs

    E-Print Network [OSTI]

    POLLPETER, Kevin

    2013-01-01

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

  20. Debris and Future Space Activities

    E-Print Network [OSTI]

    California at Santa Cruz, University of

    Debris and Future Space Activities Prof. Joel R. Primack Physics Department University would be endangered. Every person who cares about the human future in space should also realize

  1. NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

    E-Print Network [OSTI]

    Rathbun, Julie A.

    NATIONAL AERONAUTICS AND SPACE ADMINISTRATION OFFICE OF MANNED SPACE FLIGHT DEPARTMENT OF THE ARMY of the Chief of Engineers Washington, D. C. and National Aeronautics and Space Administration Office of Manned of the National Aeronautics and Space Administration concept development program for LESA and was conducted under

  2. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Xu, Kun

    National Aeronautics and Space Administration Langley Research Center Hampton, Virginia 23681 Aeronautics a

  3. space holder Fisheries Economics

    E-Print Network [OSTI]

    #12;#12;space holder Fisheries Economics of the United States, 2011 Economics and Social Analysis Citation: National Marine Fisheries Service. 2012. Fisheries Economics of the United States, 2011. U/publication/index.html. A copy of this report may be obtained from: Economics and Social Analysis Division

  4. Orbit Spaces in Superconductivity

    E-Print Network [OSTI]

    Vittorino Talamini

    2006-07-30

    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.

  5. INSTITUTE OF SPACE AND ATMOSPHERIC

    E-Print Network [OSTI]

    Saskatchewan, University of

    Gordon James Larry Newitt Tom McElroy David Kendall Malcolm Vant David Grier Senior Scientist, Space

  6. Space Data Systems (ISR-3)

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

    Standard, including the processing and communications architecture, common hardware and software components, and its communications protocols Modular space payload architecture...

  7. Space-time diamonds

    E-Print Network [OSTI]

    Daiqin Su; T. C. Ralph

    2015-07-02

    We show that the particle number distribution of diamond modes, modes that are localised in a finite space-time region, are thermal for the Minkowski vacuum state of a massless scalar field, an analogue to the Unruh effect. The temperature of the diamond is inversely proportional to its size. An inertial observer can detect this thermal radiation by coupling to the diamond modes using an appropriate energy scaled detector. We further investigate the correlations between various diamonds and find that entanglement between adjacent diamonds dominates.

  8. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541C. TemperatureThousand CubicArchived1 Space Science and

  9. Electronic Prehospital Records are Often Unavailable for Emergency Department Medical Decision Making

    E-Print Network [OSTI]

    Bledsoe, Bryan E; Wasden, Chad; Johnson, Larry

    2013-01-01

    of Emergency Physicians (ACEP) email lists. As a result,of Emergency Physicians (ACEP). The study was limited to

  10. Hilbert space of wormholes

    E-Print Network [OSTI]

    Luis J. Garay

    1993-06-01

    Wormhole boundary conditions for the Wheeler--DeWitt equation can be derived from the path integral formulation. It is proposed that the wormhole wave function must be square integrable in the maximal analytic extension of minisuperspace. Quantum wormholes can be invested with a Hilbert space structure, the inner product being naturally induced by the minisuperspace metric, in which the Wheeler--DeWitt operator is essentially self--adjoint. This provides us with a kind of probabilistic interpretation. In particular, giant wormholes will give extremely small contributions to any wormhole state. We also study the whole spectrum of the Wheeler--DeWitt operator and its role in the calculation of Green's functions and effective low energy interactions.

  11. Machian space quanta

    E-Print Network [OSTI]

    David W. Essex

    2015-01-25

    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'.

  12. No Prejudice in Space

    SciTech Connect (OSTI)

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

    2010-08-26

    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.

  13. Entropic Gravity in Rindler Space

    E-Print Network [OSTI]

    Edi Halyo

    2011-04-13

    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.

  14. Space Instrument Realization (ISR-5)

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

    design, and fabrication support to all aspects of mechanical and electronic assemblies Mechanical analysis with a focus on space environment-radiation, thermal, vibration...

  15. TANK SPACE ALTERNATIVES ANALYSIS REPORT

    SciTech Connect (OSTI)

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

    2010-04-27

    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.

  16. Portfolio Manager Space Type Discussion

    Broader source: Energy.gov [DOE]

    This presentation, given through the DOE's Technical Assistance Program (TAP), provides a discussion about space/type in regards to the Portfolio Manager Initiative.

  17. Radioisotopes: Energy for Space Exploration

    SciTech Connect (OSTI)

    Carpenter, Bob; Green, James; Bechtel, Ryan

    2011-01-01

    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.

  18. Flat space physics from holography

    E-Print Network [OSTI]

    Bousso, Raphael

    2009-01-01

    thermodynamics in black hole physics. Phys. Rev. D 9, 3292 (LBNL-53861 Flat space physics from holography RaphaelBousso Center for Theoretical Physics, Department of Physics

  19. Linear Programming and Kantorovich Spaces

    E-Print Network [OSTI]

    S. Kutateladze

    2009-05-08

    This is a brief overview of the life of Leonid Kantorovich (1912--1986) and his contribution to the fields of linear programming and ordered vector spaces.

  20. Space Instrument Realization (ISR-5)

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

    and fabrication (NASA-certified) assembly Parts inventory database based on "pcMRP" software package Quality assurance System test and integration Space systems engineering...

  1. Radioisotopes: Energy for Space Exploration

    ScienceCinema (OSTI)

    Carpenter, Bob; Green, James; Bechtel, Ryan

    2013-05-29

    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.

  2. Portfolio Manager Space Type Discussion

    Broader source: Energy.gov [DOE]

    This presentation, given through the DOE's Technical Assitance Program (TAP), provides a discussion about space/type in regards to the Portfolio Manager Initiative.

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

    Energy Savers [EERE]

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

  4. Constrained space camera assembly

    DOE Patents [OSTI]

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

    1999-05-11

    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.

  5. Physics in discrete spaces (A): Space-Time organization

    E-Print Network [OSTI]

    P. Peretto

    2010-12-29

    We put forward a model of discrete physical space that can account for the structure of space- time, give an interpretation to the postulates of quantum mechanics and provide a possible explanation to the organization of the standard model of particles.

  6. National Aeronautics and Space Administration space launch system

    E-Print Network [OSTI]

    Rathbun, Julie A.

    into the solar system ­ finding potential resources, develop- ing new technologies, and discovering answersNational Aeronautics and Space Administration NASAfacts space launch system Building America's Next to reach further into our solar system. However, if needed, SLS will support backup trans- portation

  7. Finite Linear Spaces, Plane Geometries, Hilbert spaces and Finite Phase Space

    E-Print Network [OSTI]

    M. Revzen; A. Mann

    2015-08-03

    Finite plane geometry is associated with finite dimensional Hilbert space. The association allows mapping of q-number Hilbert space observables to the c-number formalism of quantum mechanics in phase space. The mapped entities reflect geometrically based line-point interrelation. Particularly simple formulas are involved when use is made of mutually unbiased bases (MUB) representations for the Hilbert space entries. The geometry specifies a point-line interrelation. Thus underpinning d-dimensional Hilbert space operators (resp. states) with geometrical points leads to operators termed "line operators" underpinned by the geometrical lines. These "line operators", $\\hat{L}_j;$ (j designates the line) form a complete orthogonal basis for Hilbert space operators. The representation of Hilbert space operators in terms of these operators form the phase space representation of the d-dimensional Hilbert space. The "line operators" (resp. "line states") are studied in detail. The paper aims at self sufficiency and to this end all relevant notions are explained herewith.

  8. 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 and it emits Note: heat balance Fvis( = Fout = Te 4 z #12;(simple Greenhouse cont.) 0 1 2 3 4 Ground Space Top

  9. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Rathbun, Julie A.

    commercial and international partner transportation services to the International Space Station. Designed Administrator Initial Lift Capability 70 Tonnes (t) More than Double Any Operational Vehicle Today Crew orbit, continuing America's human exploration of space. Evolved Lift Capability 130t More than Any Past

  10. Space Telescope Programs Hubble Observatory

    E-Print Network [OSTI]

    Colorado at Boulder, University of

    Certifications required for all raw materials ­ Shelf Life (Polymerics) materials date controlled by QA · DesignsSpace Telescope Programs Hubble Observatory HST-COS FUV PER 11/8/00 FUV Detector System Materials;Space Telescope Programs Hubble Observatory HST-COS FUV PER 11/8/00 Materials and Processes · Materials

  11. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Rathbun, Julie A.

    National Aeronautics and Space Administration The Vision for Space Exploration February 2004 #12 #12;Message from the NASA Administrator Dear Reader, With last year's budget, NASA released a new of careful deliberations within the Administration. This plan does not undertake exploration merely

  12. Nonlinear classification of Banach spaces 

    E-Print Network [OSTI]

    Randrianarivony, Nirina Lovasoa

    2005-11-01

    We study the geometric classi?cation of Banach spaces via Lipschitz, uniformly continuous, and coarse mappings. We prove that a Banach space which is uniformly homeomorphic to a linear quotient of lp is itself a linear quotient of lp when p<2...

  13. CHEMISTRY OF SILICA IN CERRO PRIETO BRINES

    E-Print Network [OSTI]

    Weres, O.

    2012-01-01

    tank, add 20 to 30 ppm lime (CaO), stir for 5 ! Qinutes, andience. In practice, lime (calcium oxide or hydroxide) wouldadding a large amount of lime to them {up to 700 ppm CaO).

  14. Chemistry of Silica in Cerro Prieto Brines

    E-Print Network [OSTI]

    Weres, Oleh

    2012-01-01

    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

  15. CHEMISTRY OF SILICA IN CERRO PRIETO BRINES

    E-Print Network [OSTI]

    Weres, O.

    2012-01-01

    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

  16. Chemistry of Silica in Cerro Prieto Brines

    E-Print Network [OSTI]

    Weres, O.

    2010-01-01

    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

  17. 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 on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoopButtePower VenturesInformation9)ask queries TypeDeveloper headerCounty,

  18. 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 Data Center Home Page on Delicious Rank EERE: Alternative FuelsofProgram:Y-12Power, Inc |Bartlesville Energy Research Centerof

  19. CRAD, Confined Spaces Assessment Plan

    Broader source: Energy.gov [DOE]

    This assessment provides a basis for evaluating the safety effectiveness of the contractor’s confined or enclosed spaces procedure, and for establishing compliance with DOE and OSHA requirements.

  20. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Guattery, Steve

    National Aeronautics and Space Administration Langley Research Center Hampton, Virginia 23681, Hampton, VA 23681­0001 (email: smg@icase.edu). This research was supported by the National Aeronautics

  1. I. Cover Page Ubiquitous Smart Spaces

    E-Print Network [OSTI]

    Abowd, Gregory D.

    I. Cover Page Ubiquitous Smart Spaces Topic Area: Smart Spaces Gregory Abowd, Chris Atkeson, Irfan. Ubiquitous Smart Spaces II.1 Innovative Capability Envisioned The next revolutionary advance in smart spaces research is to create and experiment with ubiquitous smart spaces. Current research has created isolated

  2. Dr. David Kortenkamp NASA Johnson Space Center

    E-Print Network [OSTI]

    Kortenkamp, David

    Dr. David Kortenkamp NASA Johnson Space Center Dr. David Kortenkamp NASA Johnson Space Center Intelligent Robots for Space Applications Intelligent Robots for Space Applications Dr. David Kortenkamp NASA Johnson Space Center/Metrica Inc. Houston TX 77058 kortenkamp@jsc.nasa.gov http

  3. Nuclear Propulsion in Space (1968)

    SciTech Connect (OSTI)

    2012-06-23

    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.

  4. Nuclear Propulsion in Space (1968)

    ScienceCinema (OSTI)

    None

    2014-06-17

    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.

  5. Dynamical 3-Space: Emergent Gravity

    E-Print Network [OSTI]

    Reginald T Cahill

    2011-02-16

    The laws of gravitation devised by Newton, and by Hilbert and Einstein, have failed many experimental and observational tests, namely the bore hole g anomaly, flat rotation curves for spiral galaxies, supermassive black hole mass spectrum, uniformly expanding universe, cosmic filaments, laboratory G measurements, galactic EM bending, precocious galaxy formation,.. The response has been the introduction of the new epicycles: ``dark matter", ``dark energy", and others. To understand gravity we must restart with the experimental discoveries by Galileo, and following a heuristic argument we are led to a uniquely determined theory of a dynamical 3-space. That 3-space exists has been missed from the beginning of physics, although it was 1st directly detected by Michelson and Morley in 1887. Uniquely generalising the quantum theory to include this dynamical 3-space we deduce the response of quantum matter and show that it results in a new account of gravity, and explains the above anomalies and others. The dynamical theory for this 3-space involves G, which determines the dissipation rate of space by matter, and alpha, which experiments and observation reveal to be the fine structure constant. For the 1st time we have a comprehensive account of space and matter and their interaction - gravity.

  6. Configuration Spaces in Fundamental Physics

    E-Print Network [OSTI]

    Edward Anderson

    2015-05-13

    I consider configuration spaces for $N$-body problems, gauge theories and for GR in both geometrodynamical and Ashtekar variables forms, including minisuperspace and inhomogeneous perturbations thereabout in the former case. These include many interesting spaces of shapes (with and without whichever of local or global notions of scale). In considering reduced configuration spaces, stratified manifolds arise. Three strategies to deal with these are `excise', `unfold' and `accept'. I show that spaces of triangles arising from various interpretations of 3-body problems already serve as model arena for all three. I furthermore argue in favour of the `accept' strategy on relational grounds. Sheaf methods then become relevant in this case, as does the stratifold construct that pairs some well-behaved stratified manifolds with sheaves. I apply arguing against `excise' and `unfold' to GR's superspace and thin sandwich, and to the removal of collinear configurations in mechanics. Non-redundant configurations are also useful in providing more accurate names for various spaces and theories. I also cover notions of distance between shapes, that some perturbative midisuperspace configuration spaces are simple and similar to minisuperspace ones, and similarities between CS (conformal superspace) and CS + V (including the global spatial volume).

  7. Small Space Heater Basics | Department of Energy

    Energy Savers [EERE]

    Small Space Heater Basics Small Space Heater Basics August 19, 2013 - 10:38am Addthis Small space heaters, also called portable heaters, are typically used when the main heating...

  8. 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...

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

    Energy Savers [EERE]

    Webinar: High Performance Space Conditioning Systems, Part II - Air Distribution Retrofit Strategies for Affordable Housing Building America Webinar: High Performance Space...

  10. 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...

  11. 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...

  12. 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...

  13. 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...

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

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

    Space Conditioning Standing Technical Committee Strategic Plan Space Conditioning Standing Technical Committee Strategic Plan This strategic plan document outlines the gaps,...

  15. Total Space Heating Water Heating Cook-

    Gasoline and Diesel Fuel Update (EIA)

    Tables Total Space Heating Water Heating Cook- ing Other Total Space Heating Water Heating Cook- ing Other All Buildings ... 636 580 46 1 Q 114.0...

  16. Los Alamos Space Weather Summer School

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

    Non-U.S Citizens Mentors, Projects Papers, Reports Photos NSEC IGPPS Space Weather Summer School Los Alamos Space Weather Summer School June 1 - July 24, 2015 Contacts...

  17. Integration of space weather into space situational awareness

    SciTech Connect (OSTI)

    Reeves, Geoffrey D

    2010-11-09

    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.

  18. National Aeronautics and Space Administration Space Launch System

    E-Print Network [OSTI]

    Waliser, Duane E.

    engine. #12;The B-2 test stand at NASA's Stennis Space Center in Mississippi--originally built to test cryogenic liquid hydrogen and liquid oxygen that will feed the vehicle's RS-25 engines. SLS is an advanced, heavy-lift launch vehicle that will provide an entirely new capability for science and human exploration

  19. National Aeronautics and Space Administration space launch system

    E-Print Network [OSTI]

    Waliser, Duane E.

    Shuttle Main Engine Processing Facility, solid rocket motor test firing, J-2X test firing #12;Providing Heavy-Lift Launch Vehicle NASA's Space Launch System is an advanced, heavy-lift launch vehicle which including near-Earth asteroids, Lagrange points, the moon and ultimately Mars. The SLS heavy-lift launch

  20. Atmospheric,OceanicandSpaceSciences Atmospheric, Oceanic & Space Sciences

    E-Print Network [OSTI]

    Eustice, Ryan

    Research Areas High Energy Density Physics/Laboratory Astrophysics Magnetospheric & Ionosphere/Thermosphere Physics Planetary Magnetospheres Solar & Heliospheric Physics Space Weather Aeronomy For Faculty involved,Recipient, Department of Energy Early Career Award Margaret Kivelson, Member, National Academy of Sciences; Member

  1. Space-Based Gravity Detector for a Space Laboratory

    E-Print Network [OSTI]

    Leonid Verozub

    2009-04-13

    A space-based superconducting gravitational low-frequency wave detector is considered. Sensitivity of the detector is sufficient to use the detector as a partner of other contemporary low-frequency detectors like LIGO and LISA. This device can also be very useful for experimental study of other effects predicted by theories of gravitation.

  2. Contemporary Mathematics Time-space and Space-times

    E-Print Network [OSTI]

    Laudal, Arnfinn

    use some of the basic concepts and philosophy of classical physics in the study of the geometry parametrized by the moduli space is then formulated in much the same way as in modern physics. Contents: §0 is to apply some basic concepts of classical physics to the study of the geometry of some algebraic geometric

  3. National Aeronautics and Space Administration space launch system

    E-Print Network [OSTI]

    Rathbun, Julie A.

    into the solar system--developing new technologies, inspiring future generations and expanding our knowledge Launch System 70t vehicle launching from Kennedy Space Center. Building America's New Rocket for Deep in the solar system, launching crews of up to four astronauts aboard the new Orion spacecraft to explore

  4. David Kortenkamp NASA Johnson Space Center

    E-Print Network [OSTI]

    Kortenkamp, David

    David Kortenkamp NASA Johnson Space Center David Kortenkamp NASA Johnson Space Center Distributed Systems David Kortenkamp NASA Johnson Space Center/Metrica Inc. Houston TX 77058 kortenkamp@jsc.nasa.gov http://www.traclabs.com/~korten David Kortenkamp NASA Johnson Space Center/Metrica Inc. Houston TX

  5. Searching for a parking space 

    E-Print Network [OSTI]

    Laurier, Eric

    2005-01-01

    If you drive a car, it’s a classic problem on the busy city streets, the search for a parking space. Merely driving in the inner city is a challenging and frustrating affair because it is full of one way streets, dead ...

  6. Prospects for space arms control

    SciTech Connect (OSTI)

    Pilat, J.F.

    1989-01-01

    At the recent Wyoming Ministerial, US Secretary of State Baker and Soviet Foreign Minister Shevardnadze signed a memorandum of understanding on a bilateral verification experiment and data exchange related to a prohibition on chemical weapons, an agreement on advance notification of certain strategic exercises, and an umbrella agreement on START trial verification and stability measures. Despite these substantive achievements in high priority areas for the United States and the Soviet Union, media attention on the ministerial focused on an offer by the Soviets that would allow a START agreement to be concluded without a resolution of US-Soviet differences in the Defense and Space (D S) talks. Of course, the Soviet offer did not delink'' START and D S, because the Soviets continued to demand the right to withdraw from START if the United States deployed space-based defenses. A more substantial proposal on Defense and Space was the US initiative inviting a group of Soviet experts to visit Los Alamos and the TRW Corporation's test facility in San Juan Capistrano to learn more about US SDI research activities. The US invitation was proposed in the context of the Predictability Measures Protocol to a Defense and Space Treaty, tabled by the United States, which calls for regular exchanges of data, briefings, visits to laboratories, and observation of tests designed to foster transparency and predictability.

  7. Upper Estimates for Banach Spaces 

    E-Print Network [OSTI]

    Freeman, Daniel B.

    2010-10-12

    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...

  8. National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Rathbun, Julie A.

    -generation space fleet, Orion will push the envelope of human spaceflight far beyond low Earth orbit. Orion may features dozens of technology advancements and innovations that have been incorporated into the spacecraft and avionics systems. Building upon the best of Apollo and shuttle-era design, the Orion spacecraft includes

  9. Fusion for Earth and Space

    SciTech Connect (OSTI)

    Williams, Pharis E

    2009-03-16

    The compact reactor concept (Williams, 2007) has the potential to provide clean, safe and unlimited supply of energy for Earth and Space applications. The concept is a potential fusion reactor wherein deuterium nuclei are preferentially fused into helium nuclei. Because the deuterium nuclei are preferentially fused into helium nuclei at temperatures and energies lower than specified by the standard model there is no harmful radiation as a byproduct of this fusion process. Therefore, a reactor using this reaction does not need any shielding to contain such radiation. The energy released from each reaction and the absence of shielding makes the deuterium-plus-deuterium-to-helium (DDH) reactor very compact when compared to other reactors, both fission and fusion types. Moreover, the potential energy output per reactor weight and the absence of harmful radiation makes the DDH reactor an ideal candidate for individual home and space power. The concept also would make it possible for each plant or remote location to have it's own power source, on site, without the need for a connection to the power grid. This would minimize, or eliminate, power blackouts. The concept could replace large fission reactors and fossil fuel power plants plus provide energy for ships, locomotives, trucks and autos. It would make an ideal source of energy for space power applications and for space propulsion.

  10. Space Risks: A new generation

    E-Print Network [OSTI]

    Schrijver, Karel

    the capacity to travel and live in space, we can reach other planets and, most useful for our daily lives, we in orbit and ensuring the safety of installations on Earth. Insurers, therefore, are integral Our Specialists Contents 2 Executive summary 3 Introduction 4 Collision risks on the rise 12 Solar

  11. Magnetic fields on resistance spaces

    E-Print Network [OSTI]

    Michael Hinz; Luke Rogers

    2015-02-03

    On a metric measure space $X$ that supports a regular, strongly local resistance form we consider a magnetic energy form that corresponds to the magnetic Laplacian for a particle confined to $X$. We provide sufficient conditions for closability and self-adjointness in terms of geometric conditions on the reference measure without assuming energy dominance.

  12. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation ofAlbuquerque|SensitiveApril 2, 2014 Smith Named as NewApril

  13. Physical space and cosmology. I: Model

    E-Print Network [OSTI]

    Valeriy P. Polulyakh

    2011-02-01

    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.

  14. CAPITAL PLANNING AND SPACE MANAGEMENT GUIDELINES FOR THE USE OF OUTDOOR SPACE ON THE CAMPUS OF

    E-Print Network [OSTI]

    CAPITAL PLANNING AND SPACE MANAGEMENT GUIDELINES FOR THE USE OF OUTDOOR SPACE ON THE CAMPUS SPACE AND OUTDOOR SPACE Capital Planning and Space Management offers event scheduling to student taking responsibility and agreeing to reimburse the University for the Cost of whatever damage

  15. United Nations Human Space Technology Initiative (HSTI)

    E-Print Network [OSTI]

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

    2015-01-01

    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 ...

  16. Large aperture diffractive space telescope

    DOE Patents [OSTI]

    Hyde, Roderick A. (Livermore, CA)

    2001-01-01

    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.

  17. Relativity theory in time-space

    E-Print Network [OSTI]

    Ákos G. Horváth

    2014-11-05

    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.

  18. A performance-driven experiment framework for space technology development using the International Space Station

    E-Print Network [OSTI]

    Hilton, Andrew Robert

    2015-01-01

    Space systems are inherently difficult to verify prior to launch due to the challenges of replicating the space environment through ground testing. The SPHERES testbed on the International Space Station has provided a ...

  19. Space and motion : data based rules of public space pedestrian motion

    E-Print Network [OSTI]

    Gonzalez Rojas, Paloma (Paloma Francisca)

    2015-01-01

    The understanding of space relies on motion, as we experience space by crossing it. While in motion we sense the environment in time, interacting with space. The vision of this thesis is to incorporate people's motion into ...

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

    E-Print Network [OSTI]

    Platoff, Anne M.

    sory Committee for Aeronautics. 4. NASA Policy Directive (When the National Aeronautics and Space Administra- tion (passed the National Aeronautics and Space Act and it was

  1. Embeddings and factorizations of Banach spaces 

    E-Print Network [OSTI]

    Zheng, Bentuo

    2009-05-15

    One problem, considered important in Banach space theory since at least the 1970’s, asks for intrinsic characterizations of subspaces of a Banach space with an unconditional basis. A more general question is to give necessary and sufficient...

  2. Space applications of shape memory alloys 

    E-Print Network [OSTI]

    Godard, Olivier Jean

    2002-01-01

    This work presents an investigation of two new possible space applications of shape memory alloys. The first application uses these alloys as active devices to optimally reorient solar panels in space. The thermal issues related to the actuation...

  3. Space Weather Prediction with Exascale Computing

    E-Print Network [OSTI]

    Lapenta, Giovanni

    2011-01-01

    Space weather refers to conditions on the Sun, in the interplanetary space and in the Earth space environment that can influence the performance and reliability of space-borne and ground-based technological systems and can endanger human life or health. Adverse conditions in the space environment can cause disruption of satellite operations, communications, navigation, and electric power distribution grids, leading to a variety of socioeconomic losses. The conditions in space are also linked to the Earth climate. The activity of the Sun affects the total amount of heat and light reaching the Earth and the amount of cosmic rays arriving in the atmosphere, a phenomenon linked with the amount of cloud cover and precipitation. Given these great impacts on society, space weather is attracting a growing attention and is the subject of international efforts worldwide. We focus here on the steps necessary for achieving a true physics-based ability to predict the arrival and consequences of major space weather storms....

  4. 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

  5. Ames Lab 101: Growing Crystals in Space

    SciTech Connect (OSTI)

    Trivedi, Rohit

    2011-01-01

    Rohit Trivedi, distinguished professor of materials science and engineering, discusses his research with NASA to grow crystals in space.

  6. Ames Lab 101: Growing Crystals in Space

    ScienceCinema (OSTI)

    Trivedi, Rohit

    2012-08-29

    Rohit Trivedi, distinguished professor of materials science and engineering, discusses his research with NASA to grow crystals in space.

  7. Ongoing Space Physics - Astrophysics Connections

    E-Print Network [OSTI]

    David Eichler

    2005-03-16

    I review several ongoing connections between space physics and astrophysics: a) Measurements of energetic particle spectra have confirmed theoretical prediction of the highest energy to which shocks can accelerate particles, and this has direct bearing on the origin of the highest energy cosmic rays. b) Mass ejection in solar flares may help us understand photon ejection in the giant flares of magnetar outbursts. c) Measurements of electron heat fluxes in the solar wind can help us understand whether heat flux in tenuous astrophysical plasma is in accordance with the classical Spitzer-Harm formula or whether it is reduced well below this value by plasma instabilities.

  8. Fractional Inversion in Krylov Space

    E-Print Network [OSTI]

    B. Bunk

    1998-05-28

    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.

  9. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541C. TemperatureThousand CubicArchived FOIASpaceSpace Dust45

  10. 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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541C. TemperatureThousand CubicArchived FOIASpaceSpace

  11. Space Week | Department of Energy

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541C. TemperatureThousand CubicArchived1 Space Science

  12. 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

  13. Seminar 12! The Future of Space Flight!

    E-Print Network [OSTI]

    Stengel, Robert F.

    ! Rationales and Approaches for Human Space Flight! ! Spacecraft Power & Thermal Control! Understanding SpaceSeminar 12! The Future of Space Flight! Spacecraft Power & Thermal Control! Robert Stengel! FRS 112, Sec 13.2, 13.3! 1! 2! #12;3! 4! #12;5! 6! #12;7! 8! #12;Spacecraft Power! 9! Typical Electrical Power

  14. Navigation in Information Spaces: supporting the individual

    E-Print Network [OSTI]

    Höök, Kristina

    Navigation in Information Spaces: supporting the individual David Benyon Dept. Computer Studies of how users can navigate their way through large information spaces is one that is crucial to the ever takes a critical look at the alterna- tives for assisting users to navigate information spaces

  15. 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

  16. What is Space? Sunday, February 14, 2010

    E-Print Network [OSTI]

    Wilczek, Frank

    , that no human power can remove it from the smallest portion of Space, or produce the slightest flaw in its? An independent medium, with a life of its own? The primary ingredient of reality, of which particles (space as an independent entity): "Nature abhors a vacuum." Theory of natural places. Dualism: Both Space

  17. Partial inner product spaces: Some categorical aspects

    E-Print Network [OSTI]

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

    2012-03-02

    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.

  18. Understanding space weather to shield society

    E-Print Network [OSTI]

    Schrijver, Karel

    Understanding space weather to shield society Improving understanding and forecasts of space weather requires addressing scientific challenges within the network of physical processes that connect the Sun to society. The roadmap team identified the highest-priority areas within the Sun-Earth space-weather

  19. Understanding space weather to shield society

    E-Print Network [OSTI]

    Schrijver, Karel

    Understanding space weather to shield society An international, interdisciplinary roadmap to advance the scientific understanding of the Sun-Earth connections leading to space weather, on behalf observatory along with models and innovative approaches to data incorporation;! b) Understand space weather

  20. Atomic power in space: A history

    SciTech Connect (OSTI)

    Not Available

    1987-03-01

    ''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.

  1. 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)

    1999-11-01

    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.

  2. Reciprocal Space Mapping for Dummies

    E-Print Network [OSTI]

    Samuele Lilliu; Thomas Dane

    2015-12-28

    Grazing Incidence X-ray Diffraction (GIXD) is a surface sensitive X-ray investigation technique (or geometry configuration) that can reveal the structural properties of a film deposited on a flat substrate. The term grazing indicates that the angle between the incident beam and the film is small (typically below 0.5 degrees). This essential technique has been employed on liquid crystals, nanoparticles and colloids, nanostructures, corrosion processes, polymers, bio-materials, interfaces, materials for solar cells, photodiodes, and transistors, etc. Diffraction patterns in GIXD geometry are typically captured with a 2D detector, which outputs images in pixel coordinates. A step required to perform analyses such as grain size estimation, disorder, preferred orientation, quantitative phase analysis of the probed film surface, etc., consists in converting the diffraction image from pixel coordinates to the momentum transfer or scattering vector in sample coordinates (the reciprocal space mapping). This momentum transfer embeds information on the crystal or polycrystal and its intrinsic rotation with respect to the substrate. In this work we derive, in a rigorous way, the reciprocal space mapping equations for a 3D+1S diffractometer in a way that is understandable to anyone with basic notions of linear algebra, geometry, and X-ray diffraction.

  3. Reciprocal Space Mapping for Dummies

    E-Print Network [OSTI]

    Samuele Lilliu; Thomas Dane

    2015-11-18

    Grazing Incidence X-ray Diffraction (GIXD) is a surface sensitive X-ray investigation technique (or geometry configuration) that can reveal the structural properties of a film deposited on a flat substrate. The term grazing indicates that the angle between the incident beam and the film is small (typically below 0.5 degrees). This essential technique has been employed on liquid crystals, nanoparticles and colloids, nanostructures, corrosion processes, polymers, bio-materials, interfaces, materials for solar cells, photodiodes, and transistors, etc. Diffraction patterns in GIXD geometry are typically captured with a 2D detector, which outputs images in pixel coordinates. A step required to perform analyses such as grain size estimation, disorder, preferred orientation, quantitative phase analysis of the probed film surface, etc., consists in converting the diffraction image from pixel coordinates to the momentum transfer or scattering vector in sample coordinates (the reciprocal space mapping). This momentum transfer embeds information on the crystal or polycrystal and its intrinsic rotation with respect to the substrate. In this work we derive, in a rigorous way, the reciprocal space mapping equations for a 3D+1S diffractometer in a way that is understandable to anyone with basic notions of linear algebra, geometry, and X-ray diffraction.

  4. NASA Turns To Universities For Research In Space-Age Materials SPACE FORUMS

    E-Print Network [OSTI]

    Aksay, Ilhan A.

    NASA Turns To Universities For Research In Space-Age Materials CHANNELS SPACE FORUMS SPACEDAILY TECH SPACE NASA Turns To Universities For Research In Space-Age Materials innovations as simple that can scale the canyons of Mars Chapel Hill - Sep 26, 2002 NASA has selected a consortium of research

  5. AlbertA Space program alberta Space program boundleSS opportunity

    E-Print Network [OSTI]

    MacMillan, Andrew

    AlbertA Space program alberta Space program ­ boundleSS opportunity Alberta is a national leader in space sciences ­ and that leadership starts at our universities. The Universities of Alberta, Calgary. Partnerships with Alberta's Universities will be key to leading future Alberta space innovation in the decades

  6. Space weather impacts Thank you for taking this anonymous survey on the impacts of space weather.

    E-Print Network [OSTI]

    Schrijver, Karel

    Space weather impacts Thank you for taking this anonymous survey on the impacts of space weather) that apply to the general information regarding your institution and your interest in space weather. Please that focus on three different aspects of space weather. The questions that you will see in this part

  7. NASA Marshall Space Flight Center Improves Cooling System Performance...

    Office of Environmental Management (EM)

    Marshall Space Flight Center Improves Cooling System Performance NASA Marshall Space Flight Center Improves Cooling System Performance NASA Marshall Space Flight Center Improves...

  8. National Aeronautics and Space Administration MAVEN Orbit Insertion

    E-Print Network [OSTI]

    Mojzsis, Stephen J.

    National Aeronautics and Space Administration NASAfacts MAVEN Orbit Insertion Mars Atmosphere. MAVEN: Exploring Mars' climate history #12;National Aeronautics and Space Administration Goddard Space

  9. Curved Space or Curved Vacuum?

    E-Print Network [OSTI]

    Eric V. Linder

    2005-10-11

    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.

    1988-03-11

    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. Computer aided architectural space planning 

    E-Print Network [OSTI]

    Schramek, Charles Wayne

    1971-01-01

    interrelations II aI M III E~k 0 0 gzu ta oner al 4 al M cluster 1 ll 14 10 4 aster 3 1 cluster 2 0 . . . . o. . . . 00 I 1 00 0 11 0". 0 11 7 0 0 0 10 4 laaa 1 Us?i' 7 TO 'LU laa 1 0" I'l' 15 TU ULUST~ 3 Pass 2 I?41'1 3 To OLUa?44 Paaa 3... 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...

  12. An extended phase space for Quantum Mechanics

    E-Print Network [OSTI]

    C. Lopez

    2015-09-23

    The standard formulation of Quantum Mechanics violates locality of interactions and the action reaction principle. An alternative formulation in an extended phase space could preserve both principles, but Bell's theorems show that a distribution of probability in a space of local variables can not reproduce the quantum correlations. An extended phase space is defined in an alternative formulation of Quantum Mechanics. Quantum states are represented by a complex va\\-lued distribution of amplitude, so that Bell's theorems do not apply.

  13. Space reactors - past, present, and future

    SciTech Connect (OSTI)

    Buden, D.; Angelo, J.

    1983-01-01

    In the 1990s and beyond, advanced-design nuclear reactors could represent the prime source of both space power and propulsion. Many sophisticated military and civilian space missions of the future will require first kilowatt and then megawatt levels of power. This paper reviews key technology developments that accompanied past US space nuclear power development efforts, describes on-going programs, and then explores reactor technologies that will satisfy megawatt power level needs and beyond.

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

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

    Compact Buried Ducts Building America Webinar: High Performance Space Conditioning Systems, Part II - Compact Buried Ducts Dave Mallay, Partnership for Home Innovation (PHI),...

  15. Superintegrability on sl(2)-coalgebra spaces

    SciTech Connect (OSTI)

    Ballesteros, A., E-mail: angelb@ubu.e [Universidad de Burgos, Departamento de Fesica, Facultad de Ciencias (Spain); Herranz, F. J., E-mail: fjherranz@ubu.e [Universidad de Burgos, Departamento de Fesica, Escuela Politecnica Superior (Spain); Ragnisco, O., E-mail: ragnisco@fis.uniroma3.i [Universita di Roma Tre and Instituto Nazionale di Fisica Nucleare sezione di Roma Tre, Dipartimento di Fisica (Italy)

    2008-05-15

    A recently introduced set of N-dimensional quasi-maximally superintegrable Hamiltonian systems describing geodesic motions that can be used to generate 'dynamically' a large family of curved spaces is revisited. From an algebraic viewpoint, such spaces are obtained through kinetic energy Hamiltonians defined on either the sl(2) Poisson coalgebra or a quantum deformation of it. Certain potentials on these spaces and endowed with the same underlying coalgebra symmetry have also been introduced in such a way that the superintegrability properties of the full system are preserved. Several new N = 2 examples of this construction are explicitly given, and specific Hamiltonians leading to spaces of nonconstant curvature are emphasized.

  16. Gauge Gravity and Space-Time

    E-Print Network [OSTI]

    Ning Wu

    2012-07-11

    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.

  17. Hyperbolic statics in space-time

    E-Print Network [OSTI]

    Dmitry Pavlov; Sergey Kokarev

    2014-12-11

    Based on the concept of material event as an elementary material source that is concentrated on metric sphere of zero radius --- light-cone of Minkowski space-time, we deduce the analog of Coulomb's law for hyperbolic space-time field universally acting between the events of space-time. Collective field that enables interaction of world lines of a pair of particles at rest contains a standard 3-dimensional Coulomb's part and logarithmic addendum. We've found that the Coulomb's part depends on a fine balance between causal and geometric space-time characteristics (the two regularizations concordance).

  18. ARITHMETIC QUANTUM CHAOS ON LOCALLY SYMMETRIC SPACES

    E-Print Network [OSTI]

    Silberman, Lior

    ARITHMETIC QUANTUM CHAOS ON LOCALLY SYMMETRIC SPACES LIOR SILBERMAN A DISSERTATION PRESENTED Lindenstrauss on the arithmetic quantum chaos problem on hyperbolic surfaces. We have also benefited from

  19. Automatic aligning free space communication platform

    E-Print Network [OSTI]

    Andrews, John Michael

    2008-01-01

    OF CALIFORNIA, SAN DIEGO Automatic Aligning Free Space36 v ABSTRACT OF THE THESIS Automatic Aligning Free Spacetransmitter/receiver. With automatic search and alignment,

  20. Space and Remote Sensing (ISR-2)

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

    2 Space and Remote Sensing Developing and applying remote sensing capabilities to problems of global security and related sciences Contacts Group Leader Robert Shirey Email Deputy...

  1. National Aeronautics and Space Administration www.nasa.gov

    E-Print Network [OSTI]

    Christian, Eric

    National Aeronautics and Space Administration www.nasa.gov Volume 3 Issue 10 August 2007 Space for Education and Discovery Pg 3 Goddard Space Scientists Earn Prestigious NASA Honors Pg 11 Space Shuttle and Discovery Pg 3 Goddard Space Scientists Earn Prestigious NASA Honors Pg 9 National Aeronautics and Space

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

    E-Print Network [OSTI]

    Saenz Otero, Alvar, 1975-

    2005-01-01

    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 ...

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

    E-Print Network [OSTI]

    collectors in a scalable path to space solar power. European initiatives for a DC grid to integrate space) that steady power is generated round the clock because the Sun is not obscured, and (2) as the scale increases

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

    E-Print Network [OSTI]

    Holschuh, Bradley Thomas

    2010-01-01

    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 ...

  5. A chondrule-like object captured by space-exposed aerogel on the international space station

    E-Print Network [OSTI]

    Meyers, Stephen R.

    A chondrule-like object captured by space-exposed aerogel on the international space station T (Bradley, 2004; Brownlee, 1985). On the other hand, MMs are collected by melting and filtering of Antarctic

  6. 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 ...

  7. High-alpha space trucks

    SciTech Connect (OSTI)

    Cook, L.M. [Ball Aerospace and Technology Corp. 1600 Commerce St. MS CO-9 Boulder, Colorado80301 (United States); Ball, J. [McDonnel Douglas Aerospace 5301 Bolsa Ave. MS 13-3 Huntington Beach, California92647 (United States)

    1997-01-01

    Vertically-landing Reusable Launch Vehicles (RLVs) are the best hope of building a true {open_quotes}Space Truck{close_quotes} with current technology. Because they do not require a low angle-of-attack (AOA, or alpha) horizontal landing, they can be designed to operate exclusively at very high angles-of-attack. This offers savings in vehicle dry weight and complexity, which can be traded for significantly heavier payload, more ascent velocity, or extra design margin. The price for abandoning low angle-of-attack flight is reduced crossrange. To quantify the potential weight reduction, a trade study was performed to determine the relationship between a vehicle{close_quote}s maximum crossrange (angle-of-attack) and it{close_quote}s dry weight (payload margin). At the study conclusion, three vertically-landing (VL) vehicles provided multiple points on a payload weight vs. maximum crossrange curve, showing significant payload increases as crossrange is sacrificed. This is primarily the result of being able to simplify the structure, fly a cooler entry trajectory, and be aerodynamically stable through the entire flight. This reduces subsystem requirements and complexity, enhancing reliability. Further benefits are realized in reduced landing propellant requirements and simplifying or eliminating the {open_quotes}rotation{close_quotes} maneuver. This paper also suggests unique operability solutions that adapt high-alpha vehicles to traditional high-crossrange missions such as the polar {open_quotes}once-around{close_quotes} flight, and proposes a small scale drop-test program to prove the subsonic and landing portion of the flight envelope. {copyright} {ital 1997 American Institute of Physics.}

  8. Deep-Space Optical Communications: Future

    E-Print Network [OSTI]

    Djordjevic, Ivan B.

    INVITED P A P E R Deep-Space Optical Communications: Future Perspectives and Applications Current technologies available for deep-space optical data transmission and networking are discussed in this paper IEEE, Abhijit Biswas, and Ivan B. Djordjevic, Senior Member IEEE ABSTRACT | The concept of deep

  9. Homological algebra in categories of Banach spaces 

    E-Print Network [OSTI]

    Brown, April D.

    1999-01-01

    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...

  10. Gravity in Complex Hermitian Space-Time

    E-Print Network [OSTI]

    Ali H. Chamseddine

    2006-10-09

    A generalized theory unifying gravity with electromagnetism was proposed by Einstein in 1945. He considered a Hermitian metric on a real space-time. In this work we review Einstein's idea and generalize it further to consider gravity in a complex Hermitian space-time.

  11. November 2006/dls 1 CONFINED SPACE

    E-Print Network [OSTI]

    Johnson, Eric E.

    and that is capable of withstanding the maximum pressure of the pipe, line, or duct with no leakage beyond the plate in-line valves and by opening and locking or tagging a drain or vent valve in the line between the two closed valves. 3.4 Confined Space ­ Defined by OSHA 29 CFR 1910.146 as any space that: 3

  12. THE FOURIER TRANSFORM IN WEIGHTED LORENTZ SPACES

    E-Print Network [OSTI]

    Sinnamon, Gordon J.

    the Lorentz space p(v) to be the collection of functions f : Rn R for which f p(v) = 0 (f )p v 1/p 1991, Weights, Lorentz Space. Support from the Natural Sciences and Engineering Research Council of Canada transform as a map on p(v). Our work here represents a development of his ideas in a different direction

  13. Operator valued Hardy spaces and related subjects 

    E-Print Network [OSTI]

    Mei, Tao

    2006-10-30

    We give a systematic study of the Hardy spaces of functions with values in the non-commutative Lp-spaces associated with a semifinite von Neumann algebra M. This is motivated by matrix valued harmonic analysis (operator weighted norm inequalities...

  14. University of Washington Learning Space Assessment

    E-Print Network [OSTI]

    Van Volkenburgh, Elizabeth

    University of Washington Learning Space Assessment Report - June 2014 #12;#12;University of Washington Learning Space Assessment Report - June 2014 #12;#12;1.0 Executive Summary 1 2.0 Goals and Process.0 Recommendations 127 8.0 Acknowledgments 141 9.0 Appendix 143 Table of Contents #12;#12;University of Washington

  15. Data Centering in Feature Space Marina Meila

    E-Print Network [OSTI]

    Washington at Seattle, University of

    Data Centering in Feature Space Marina Meila Department of Statistics University of Washington- cial data show the beneficial effects of the centering methods and reveal further insights-linear kernel machine. In its simplest version, this method of data centering in feature space has been in use

  16. Quantum Mechanics and Multiply Connected Spaces

    E-Print Network [OSTI]

    B. G. Sidharth

    2006-05-16

    t is well known that the difference between Quantum Mechanics and Classical Theory appears most crucially in the non Classical spin half of the former theory and the Wilson-Sommerfelt quantization rule. We argue that this is symptomatic of the fact that Quantum Theory is actually a theory in multiply connected space while Classical Theory operates in simply connected space.

  17. Laser deflection of space objects -- An overview

    SciTech Connect (OSTI)

    Canavan, G.H.

    1997-04-01

    Lasers provide the two major attributes required for effective deflection of space objects: agility and efficiency. Lasers act instantaneously over long distances with little losses, but deliver energy at modest power levels. Material interceptors provide large impulses, but deliver only a fraction of the mass launched into space at low speeds. The two deflection concepts are compared, as are some important additional applications.

  18. Library Reserved Room Policy All Meeting Spaces

    E-Print Network [OSTI]

    McConnell, Terry

    to the walls or doors of the room or Library public areas without explicit permission from the Library. AllLibrary 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

  19. GEOMETRY OF PARAVECTOR SPACE, WITH APPLICATIONS TO

    E-Print Network [OSTI]

    's geometric algebra, in particular the algebra of physical space (APS), lubricates the paradigm shifts from to describe the physics. Clifford's geometric algebra, in particular the algebra of physical space (APS algebras commonly used in physics and their relation to APS, which I introduce as an algebra of spatial

  20. A Physics of Bounded Metric Spaces

    E-Print Network [OSTI]

    Pierre Peretto

    1997-06-25

    We consider the possibility of obtaining emergent properties of physical spaces endowed with structures analogous to that of collective models put forward by classical statistical physics. We show that, assuming that a so-called "metric scale" does exist, one can indeed recover a number of properties of physical spaces such as the Minkowski metric, the relativistic quantum dynamics and the electroweak theory.

  1. Service Assessment Intense Space Weather Storms

    E-Print Network [OSTI]

    Schrijver, Karel

    Service Assessment Intense Space Weather Storms October 19 ­ November 07, 2003 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Weather Service Silver Spring, Maryland image. #12;Service Assessment Intense Space Weather Storms October 19 ­ November 07, 2003 April 2004 U

  2. The Fourier Transform on Quantum Euclidean Space

    E-Print Network [OSTI]

    Kevin Coulembier

    2011-05-11

    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.

  3. The Geroch group in Einstein spaces

    E-Print Network [OSTI]

    Robert G. Leigh; Anastasios C. Petkou; P. Marios Petropoulos; Prasanta K. Tripathy

    2015-06-17

    Geroch's solution-generating method is extended to the case of Einstein spaces, which possess a Killing vector {{}and are thus asymptotically (locally) (anti-)de Sitter}. This includes the reduction to a three-dimensional coset space, the description of the dynamics in terms of a sigma-model and its transformation properties under the $SL(2,\\mathbb{R})$ group, and the reconstruction of new four-dimensional Einstein spaces. The detailed analysis of the space of solutions is performed using the Hamilton--Jacobi method in the instance where the three-dimensional coset space is conformal to $\\mathbb{R}\\times \\mathcal{S}_2$. The cosmological constant appears in this framework as a constant of motion and transforms under $SL(2,\\mathbb{R})$.

  4. 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 Energy Storage TA03-16 2.2.3. Power Management & Distribution (PMAD) TA03-17 2.2.3.1. PMAD Overall TA03 activities. This document presents the DRAFT Technology Area 03 input: Space Power and Energy Storage. NASA

  5. Metastring Theory and Modular Space-time

    E-Print Network [OSTI]

    Laurent Freidel; Robert G. Leigh; Djordje Minic

    2015-02-27

    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.

  6. Some geometry of de Sitter space

    E-Print Network [OSTI]

    Paul Tod

    2015-05-22

    In this expository note, I present some basic geometric and twistor theoretic facts about de Sitter space leading up to a discussion of Penrose's quasi-local mass construction for linear gravity theory in the de Sitter background. The corresponding results for Minkowski space and anti--de Sitter space are familiar and can be found in \\cite{PR} or \\cite{HT} for the former and \\cite{KT} for the latter. Some of the formulas given here are also quite familiar, but some are thought to be new and it is convenient to have these facts collected in one place.

  7. Some geometry of de Sitter space

    E-Print Network [OSTI]

    Tod, Paul

    2015-01-01

    In this expository note, I present some basic geometric and twistor theoretic facts about de Sitter space leading up to a discussion of Penrose's quasi-local mass construction for linear gravity theory in the de Sitter background. The corresponding results for Minkowski space and anti--de Sitter space are familiar and can be found in \\cite{PR} or \\cite{HT} for the former and \\cite{KT} for the latter. Some of the formulas given here are also quite familiar, but some are thought to be new and it is convenient to have these facts collected in one place.

  8. Shift Invariant Spaces on Lca Groups

    E-Print Network [OSTI]

    Cabrelli, Carlos

    2009-01-01

    In this article we extend the theory of shift-invariant spaces to the context of LCA groups. We introduce the notion of H-invariant space for a countable discrete subgroup H of an LCA group G, and show that the concept of range function and the techniques of fiberization are valid in this context. As a consequence of this generalization we prove characterizations of frames and Riesz bases of these spaces extending previous results, that were known for Rd and the lattice Zd .

  9. Deriving time from the geometry of space

    E-Print Network [OSTI]

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

    2015-04-08

    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.

  10. 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)

    1998-01-01

    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.

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

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

    I: Heating and Cooling with Mini-Splits in the Northeast Building America Webinar: High Performance Space Conditioning Systems, Part I: Heating and Cooling with Mini-Splits in the...

  12. 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)...

  13. Virtual tour: INL's space battery facility

    SciTech Connect (OSTI)

    Johnson, Steve

    2011-01-01

    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.

  14. Space Conditioning Standing Technical Commitee Presentation

    Broader source: Energy.gov [DOE]

    This presentation outlines the goals of the Space Conditioning Standing Technical ommittee, as presented at the Building America Spring 2012 Stakeholder meeting on February 29, 2012, in Austin, Texas.

  15. Space Science: Atmospheres Evolution of planets

    E-Print Network [OSTI]

    Johnson, Robert E.

    ;Atmospheres / Evolution Heat Sources Compressional Energy Trapped Radioactive Material Tidal InteractionsSpace Science: Atmospheres Part- 7a Evolution of planets Out-Gassing/ Volcanoes Evolution Initial Species Solar abundance Solar wind composition? Carbonaceous chondrites? Variables Early sun

  16. PUPIL : constructing the space of visual attention

    E-Print Network [OSTI]

    Kassner, Moritz Philipp

    2012-01-01

    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 ...

  17. FUNDAMENTAL GROUPS AND COVERING SPACES ETHAN JERZAK

    E-Print Network [OSTI]

    May, J. Peter

    FUNDAMENTAL GROUPS AND COVERING SPACES ETHAN JERZAK Abstract. In this paper, I will briefly develop) Date: August 22, 2008. 1 #12;2 ETHAN JERZAK the structure of a group; the constant loop is the identity

  18. Loop spaces in motivic homotopy theory 

    E-Print Network [OSTI]

    Decker, Marvin Glen

    2009-06-02

    In topology loop spaces can be understood combinatorially using algebraic theories. This approach can be extended to work for certain model structures on categories of presheaves over a site with functorial unit interval objects, such as topological...

  19. Virtual tour: INL's space battery facility

    ScienceCinema (OSTI)

    Johnson, Steve

    2013-05-28

    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. Momentum space trigonometric Rosen-Morse potential

    E-Print Network [OSTI]

    C. B. Compean; M. Kirchbach

    2009-08-20

    We transform the trigonometric S wave Rosen-Morse potential to momentum space in employing its property of being a harmonic angular function on the three dimensional hypersphere S^3.

  1. Radon Transform in Finite Dimensional Hilbert Space

    E-Print Network [OSTI]

    M. Revzen

    2012-02-06

    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.

  2. Indeterminate liberal form : public space in sprawl

    E-Print Network [OSTI]

    Rothenberg, John (John Hershel)

    2007-01-01

    The question of public space in sprawl is largely ignored, even as sprawl becomes the contemporary reality for more and more of us. This thesis defines a theory of Indeterminate Public Form and proposes the use of computational ...

  3. Geometry of Feasible Spaces of Tensors 

    E-Print Network [OSTI]

    Qi, Yang

    2013-07-17

    Due to the exponential growth of the dimension of the space of tensors V_(1)?• • •?V_(n), any naive method of representing these tensors is intractable on a computer. In practice, we consider feasible subspaces (subvarieties) which are defined...

  4. Space and time from translation symmetry

    E-Print Network [OSTI]

    Albert Schwarz

    2009-05-16

    We show that the notions of space and time in algebraic quantum field theory arise from translation symmetry if we assume asymptotic commutativity. We argue that this construction can be applied to string theory.

  5. Gauge theories on noncommutative euclidean spaces

    E-Print Network [OSTI]

    Albert Schwarz

    2001-11-30

    We consider gauge theories on noncommutative euclidean space . In particular, we discuss the structure of gauge group following standard mathematical definitions and using the ideas of hep-th/0102182.

  6. Reinterpretation of space in a networked community

    E-Print Network [OSTI]

    Park, Kat Suejung, 1973-

    2003-01-01

    One of the most significant reasons why architects dwell on the design of a space is because we believe that the physical environment will influence social and interpersonal relationships. Recognizing the limitations in ...

  7. Social catalysts : embracing communication in mediated spaces

    E-Print Network [OSTI]

    Karahalios, Kyratso G., 1972-

    2004-01-01

    Mediated communication between public spaces is a relatively new concept. One current example of this interaction is video conferencing among people within the same organization. Large scale video-conferencing walls have ...

  8. Cargo revenue management for space logistics

    E-Print Network [OSTI]

    Armar, Nii A

    2009-01-01

    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 ...

  9. Collineations in Space of Four Dimensions

    E-Print Network [OSTI]

    Pond, Robert S.

    1910-01-01

    KU ScholarWorks | The University of Kansas Pre-1923 Dissertations and Theses Collection Collineations in space of four dimensions. 1910 by Robert S. Pond This work was digitized by the Scholarly Communications program staff in the KU Libraries...KU ScholarWorks | The University of Kansas Pre-1923 Dissertations and Theses Collection Collineations in space of four dimensions. 1910 by Robert S. Pond This work was digitized by the Scholarly Communications program staff in the KU Libraries...

  10. NORMALITY VERSUS COUNTABLE PARACOMPACTNESS IN PERFECT SPACES

    E-Print Network [OSTI]

    Wage, M. L.; Fleissner, William G.; Reed, G. M.

    1976-07-01

    BULLETIN OF THE AMERICAN MATHEMATICAL SOCIETY Volume 82, Number 4, July 1976 NORMALITY VERSUS COUNTABLE PARACOMPACTNESS IN PERFECT SPACES BY M. L. WAGE, W. G. FLEISSNER, AND G. M. REED Communicated March 5, 1976 Introduction. The purpose... of this announcement is to present, in a unified fashion, solutions to long outstanding questions concerning the relationship between countable paracompactness and normality conditions in perfect spaces. Each section of this paper is the contribution of a single...

  11. Power Spectrum in Krein Space Quantization

    E-Print Network [OSTI]

    M. Mohsenzadeh; S. Rouhani; M. V. Takook

    2008-11-06

    The power spectrum of scalar field and space-time metric perturbations produced in the process of inflation of universe, have been presented in this paper by an alternative approach to field quantization namely, Krein space quantization [1,2]. Auxiliary negative norm states, the modes of which do not interact with the physical world, have been utilized in this method. Presence of negative norm states play the role of an automatic renormalization device for the theory.

  12. Optimum phase space probabilities from quantum tomography

    SciTech Connect (OSTI)

    Roy, Arunabha S.; Roy, S. M.

    2014-01-15

    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.

  13. HELIOPHYSICS V. SPACE WEATHER AND SOCIETY

    E-Print Network [OSTI]

    Schrijver, Karel

    on the electric power grid 74 David Boteler 4.1 Introduction 74 4.2 Cause of power system problems 75 4.3 Magnetic on transformers 87 4.7 System impacts 88 4.8 Hazard assessment 91 4.9 Space weather forecasting for power grids 93HELIOPHYSICS V. SPACE WEATHER AND SOCIETY Early chapter collection v. January 5, 2015 http

  14. Small Reactor for Deep Space Exploration

    SciTech Connect (OSTI)

    2012-11-29

    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.

  15. Multi-Space Structure of the Universe

    E-Print Network [OSTI]

    Andrei Novikov-Borodin

    2012-11-06

    If our universe has appeared in a result of Big Bang or something like this, whether we have reasons to deny an existence of other universes appearing by the same or similar way? An objection that there is no anything like it, is doubtful, because nobody knows: what could we observe in this case? A model of a multi-space universe with mutual coupling of spaces is being proposed and investigated.

  16. Flying on Sun Shine: Sailing in Space

    SciTech Connect (OSTI)

    Alhorn, Dean

    2012-03-28

    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.

  17. Art for New Buildings and Spaces Policy 1 Art for New Buildings and Spaces Policy (December, 2011)

    E-Print Network [OSTI]

    Wapstra, Erik

    Art for New Buildings and Spaces Policy 1 Art for New Buildings and Spaces Policy (December, 2011....................................................................................................... 2 3.1 Alignment of Art for New Buildings and Spaces Scheme with State Government Public Art Scheme................................................................................................................. 3 Art for New Buildings and Spaces Policy #12;Art for New Buildings and Spaces Policy 2 Art for New

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

    E-Print Network [OSTI]

    Nguyen, Phuong-Anh Nguyet

    1995-01-01

    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...

  19. International Space Environment Conference 2001 Radiation Belt Science and Technology

    E-Print Network [OSTI]

    Chan, Anthony Arthur

    International Space Environment Conference 2001 Radiation Belt Science and Technology July 23 devoted to advancing our understanding of Earth's space environment and its effects on technology-27, 2001, Queenstown, New Zealand The International Space Environment Conference 2001: Radiation Belt

  20. Architectural space in the Gothic and Renaissance periods 

    E-Print Network [OSTI]

    Lamb, Nellie Maie

    1967-01-01

    Creation of space is the principal aim of architecture. It forms spaces and masses which model each other reciprocally and relate to each other through the representation of movement. Architectural space is characterized by infinite multiplicity...

  1. 1999 Commercial Buildings Characteristics--Glossary--Space-Heating...

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

    Space-Heating Equipment Glossary-Space-Heating Equipment Boiler: A type of space-heating equipment consisting of a vessel or tank where heat produced from the combustion of such...

  2. Analyzing monotone space complexity via the switching network model

    E-Print Network [OSTI]

    Potechin, Aaron H

    2015-01-01

    Space complexity is the study of how much space/memory it takes to solve problems. Unfortunately, proving general lower bounds on space complexity is notoriously hard. Thus, we instead consider the restricted case of ...

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

    E-Print Network [OSTI]

    J. H. Field

    2008-09-24

    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.

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

    Open Energy Info (EERE)

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

  5. Minimized Space Conditioning Distribution Strategy for Low-load...

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

    Minimized Space Conditioning Distribution Strategy for Low-load Homes Minimized Space Conditioning Distribution Strategy for Low-load Homes This presentation was given at the...

  6. DOE Announces Webinars on High Performance Space Conditioning...

    Energy Savers [EERE]

    High Performance Space Conditioning Systems, Tribal Renewable Energy, and More DOE Announces Webinars on High Performance Space Conditioning Systems, Tribal Renewable Energy, and...

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

    Open Energy Info (EERE)

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

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

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

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

  9. James Webb Space Telescope: PM Lessons Applied - Eric Smith,...

    Energy Savers [EERE]

    James Webb Space Telescope: PM Lessons Applied - Eric Smith, Deputy Program Director, NASA James Webb Space Telescope: PM Lessons Applied - Eric Smith, Deputy Program Director,...

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

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

    Committee on Science, Space, and Technology Before House Committee on Science, Space, and Technology By: Peter Lyons Subject: Assessing America's Nuclear Future - A review of the...

  11. Eigenfunction Expansion of the Space-Time Dependent Neutron Survival...

    Office of Scientific and Technical Information (OSTI)

    Eigenfunction Expansion of the Space-Time Dependent Neutron Survival Probability. Citation Details In-Document Search Title: Eigenfunction Expansion of the Space-Time Dependent...

  12. 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...

  13. Before the House Committee on Science, Space and Technology Subcommitt...

    Office of Environmental Management (EM)

    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...

  14. Quantum singularities in static and conformally static space-times

    E-Print Network [OSTI]

    D. A. Konkowski; T. M. Helliwell

    2011-12-22

    The definition of quantum singularity is extended from static space-times to conformally static space-times. After the usual definitions of classical and quantum singularities are reviewed, examples of quantum singularities in static space-times are given. These include asymptotically power-law space-times, space-times with diverging higher-order differential invariants, and a space-time with a 2-sphere singularity. The theory behind quantum singularities in conformally static space-times is followed by an example, a Friedmann-Robertson-Walker space-time with cosmic string. The paper concludes by discussing areas of future research.

  15. Before the House Committee on Space, Science, and Technology...

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

    Before the House Committee on Space, Science, and Technology Testimony of Patricia Dehmer, Acting Director of the Office of Science Before the House Committee on Space,...

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

    Open Energy Info (EERE)

    (13) Space Heating Low Temperature Geothermal Facility Facility Klamath Apartment Buildings (13) Sector Geothermal energy Type Space Heating Location Klamath Falls, Oregon...

  17. National Aeronautics and Space Administration COMET NUCLEUS TOUR

    E-Print Network [OSTI]

    Rhoads, James

    National Aeronautics and Space Administration CONTOUR COMET NUCLEUS TOUR MISHAP INVESTIGATION BOARD not constitute an official endorsement, either expressed or implied, by the National Aeronautics and Space

  18. ........... ~sc., T/7b =I NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

    E-Print Network [OSTI]

    Rathbun, Julie A.

    ·.·.·.·.·.·.·.·.·.·.·.· ~sc., T/7b ·=I NATIONAL AERONAUTICS AND SPACE ADMINISTRATION rmrmmmm ,Acting Chief, Corrmunicati 'TIONAL AERONAUTICS AND SPACE ADMINISTRATION MANNED SPACECRAFT CENTER HOUSTON

  19. NASA ADVISORY COUNCIL National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Rathbun, Julie A.

    NASA ADVISORY COUNCIL National Aeronautics and Space Administration Washington, DC 20546 Hon Aeronautics and Space Administration Washington, DC 20546 Dear Dr. Griffin: The NASA Advisory Council met

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

    Open Energy Info (EERE)

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

  1. Redshift-space limits of bound structures

    E-Print Network [OSTI]

    Rolando Dünner; Andreas Reisenegger; Andrés Meza; Pablo A. Araya; Hernán Quintana

    2007-02-26

    An exponentially expanding Universe, possibly governed by a cosmological constant, forces gravitationally bound structures to become more and more isolated, eventually becoming causally disconnected from each other and forming so-called "island universes". This new scenario reformulates the question about which will be the largest structures that will remain gravitationally bound, together with requiring a systematic tool that can be used to recognize the limits and mass of these structures from observational data, namely redshift surveys of galaxies. Here we present a method, based on the spherical collapse model and N-body simulations, by which we can estimate the limits of bound structures as observed in redshift space. The method is based on a theoretical criterion presented in a previous paper that determines the mean density contrast that a spherical shell must have in order to be marginally bound to the massive structure within it. Understanding the kinematics of the system, we translated the real-space limiting conditions of this "critical" shell to redshift space, producing a projected velocity envelope that only depends on the density profile of the structure. From it we created a redshift-space version of the density contrast that we called "density estimator", which can be calibrated from N-body simulations for a reasonable projected velocity envelope template, and used to estimate the limits and mass of a structure only from its redshift-space coordinates.

  2. Electrostatic AB-Ramjet Space Propulsion

    E-Print Network [OSTI]

    Alexander Bolonkin

    2007-01-08

    A new electrostatic ramjet space engine is proposed and analyzed. The upper atmosphere (85 -1000 km) is extremely dense in ions (millions per cubic cm). The interplanetary medium contains positive protons from the solar wind. A charged ball collects the ions (protons) from the surrounding area and a special electric engine accelerates the ions to achieve thrust or decelerates the ions to achieve drag. The thrust may have a magnitude of several Newtons. If the ions are decelerated, the engine produces a drag and generates electrical energy. The theory of the new engine is developed. It is shown that the proposed engine driven by a solar battery (or other energy source) can not only support satellites in their orbit for a very long time but can also work as a launcher of space apparatus. The latter capability includes launch to high orbit, to the Moon, to far space, or to the Earth atmosphere (as a return thruster for space apparatus or as a killer of space debris). The proposed ramjet is very useful in interplanetary trips to far planets because it can simultaneously produce thrust or drag and large electric energy using the solar wind. Two scenarios, launch into the upper Earth atmosphere and an interplanetary trip, are simulated and the results illustrate the excellent possibilities of the new concept.

  3. Topology of Vacuum Space-Time

    E-Print Network [OSTI]

    Y. M. Cho

    2007-03-02

    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.

  4. Solar Power Beaming: From Space to Earth

    SciTech Connect (OSTI)

    Rubenchik, A M; Parker, J M; Beach, R J; Yamamoto, R M

    2009-04-14

    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.

  5. Instability corners in AdS space

    E-Print Network [OSTI]

    Fotios V. Dimitrakopoulos; Ben Freivogel; Matthew Lippert; I-Sheng Yang

    2014-10-07

    We investigate whether arbitrarily small perturbations in global AdS space are generically unstable and collapse into black holes on the time scale set by gravitational interactions. We argue that current evidence, combined with our analysis, strongly suggests that a set of nonzero measure in the space of initial conditions does not collapse on this time scale. On the other hand, existing results do not provide an equally strong indication whether the unstable solutions also form a set of nonzero measure. We perform an analysis in position space to address this puzzle, and our formalism allows us to directly address the vanishing-amplitude limit. We show that gravitational self-interaction leads to tidal deformations which are equally likely to focus or defocus energy, and we sketch the phase diagram accordingly. We also clarify the connection between gravitational evolution in global AdS and holographic thermalization.

  6. Space does not exist, so time can

    E-Print Network [OSTI]

    Fotini Markopoulou

    2009-09-10

    It is often said that in general relativity time does not exist. This is because the Einstein equations generate motion in time that is a symmetry of the theory, not true time evolution. In quantum gravity, the timelessness of general relativity clashes with time in quantum theory and leads to the ``problem of time'' which, in its various forms, is the main obstacle to a successful quantum theory of gravity. I argue that the problem of time is a paradox, stemming from an unstated faulty premise. Our faulty assumption is that space is real. I propose that what does not fundamentally exist is not time but space, geometry and gravity. The quantum theory of gravity will be spaceless, not timeless. If we are willing to throw out space, we can keep time and the trade is worth it.

  7. Horizon complementarity in elliptic de Sitter space

    E-Print Network [OSTI]

    Lucas Hackl; Yasha Neiman

    2015-02-03

    We study a quantum field in elliptic de Sitter space dS_4/Z_2 - the spacetime obtained from identifying antipodal points in dS_4. We find that the operator algebra and Hilbert space cannot be defined for the entire space, but only for observable causal patches. This makes the system into an explicit realization of the horizon complementarity principle. In the absence of a global quantum theory, we propose a recipe for translating operators and states between observers. This translation involves information loss, in accordance with the fact that two observers see different patches of the spacetime. As a check, we recover the thermal state at the de Sitter temperature as a state that appears the same to all observers. This thermal state arises from the same functional that, in ordinary dS_4, describes the Bunch-Davies vacuum.

  8. de Sitter space from M-theory?

    E-Print Network [OSTI]

    Andrew Chamblin; Neil D. Lambert

    2001-02-26

    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.

  9. National Aeronautics and Space AdministrationNational Aeronautics and Space Administration NASA's Capability Driven Roadmap

    E-Print Network [OSTI]

    Waliser, Duane E.

    Space Policy Goals · Energize competitive domestic industries · Expand international cooperation human and robotic initiatives · Improve space-based Earth and solar observation "NASA has a key role the solar system. · Expand scientific understanding of the Earth and the universe in which we live. · Create

  10. National Aeronautics and Space Administration In-Space propulSIon SyStemS roadmap

    E-Print Network [OSTI]

    Waliser, Duane E.

    National Aeronautics and Space Administration In-Space propulSIon SyStemS roadmap Technology Area Missions TA02-24 Acknowledgements TA02-24 #12;Foreword NASA's integrated technology roadmap, including both Roadmap, an integrated set of fourteen technology area roadmaps, recommending the overall technology

  11. National Aeronautics and Space AdministrationNational Aeronautics and Space Administration www.nasa.gov

    E-Print Network [OSTI]

    National Aeronautics and Space AdministrationNational Aeronautics and Space Administration www.nasa 400-1489A 07/13 NASA EDUCATIONAL RESOURCES The NASA portal (www.nasa.gov) is the gateway. NASA's goal is to improve interactions for students, educators, and families with NASA and its

  12. Space Propulsion Field Exam: Space Propulsion/Plasma Physics REQUIRED BY ALL STUDENTS

    E-Print Network [OSTI]

    de Weck, Olivier L.

    Space Propulsion Field Exam: Space Propulsion/Plasma Physics REQUIRED BY ALL STUDENTS From) Both devices use magnetic fields, even though they both are electrostatic ion accelerators. Explain the role of the magnetic field in each of them, and how this guides the layout of these fields. 3) One

  13. Pictures of stable perturbations of codimension 1 singularities of maps from 2space to 3space

    E-Print Network [OSTI]

    Mond, David

    Pictures of stable perturbations of codimension 1 singularities of maps from 2­space to 3­space cases. In each picture, the vanishing cycle is shown in green, and triple­points and Whitney um­ brella, these arcs always begin and end at Whitney umbrellas. 1 + S 1 - t 0 S Good and bad real pictures

  14. Pictures of stable perturbations of codimension 1 singularities of maps from 2-space to 3-space

    E-Print Network [OSTI]

    Mond, David

    Pictures of stable perturbations of codimension 1 singularities of maps from 2-space to 3-space picture, the vanishing cycle is shown in green, and triple-points and Whitney um- brella points are shown begin and end at Whitney umbrellas. 1 + S1 - t 0 S Good and bad real pictures of images

  15. Wave Packets in Discrete Quantum Phase Space

    E-Print Network [OSTI]

    Jang Young Bang; Micheal S Berger

    2008-11-06

    The properties of quantum mechanics with a discrete phase space are studied. The minimum uncertainty states are found, and these states become the Gaussian wave packets in the continuum limit. With a suitably chosen Hamiltonian that gives free particle motion in the continuum limit, it is found that full or approximate periodic time evolution can result. This represents an example of revivals of wave packets that in the continuum limit is the familiar free particle motion on a line. Finally we examine the uncertainty principle for discrete phase space and obtain the correction terms to the continuum case.

  16. HLW Tank Space Management, Final Report

    SciTech Connect (OSTI)

    Miller, M.S.; Abell, G.; Garrett, R.; d'Entremont, P.; Fowler, J.R.; Mahoney, M.; Poe, L.

    1999-09-20

    The HLW Tank Space Management Team (SM Team) was chartered to select and recommend an HLW Tank Space Management Strategy (Strategy) for the HLW Management Division of Westinghouse Savannah River Co. (WSRC) until an alternative salt disposition process is operational. Because the alternative salt disposition process will not be available to remove soluble radionuclides in HLW until 2009, the selected Strategy must assure that it safely receives and stores HLW at least until 2009 while continuing to supply sludge slurry to the DWPF vitrification process.

  17. Cubature on Wiener Space: Pathwise Convergence

    SciTech Connect (OSTI)

    Bayer, Christian Friz, Peter K.

    2013-04-15

    Cubature on Wiener space (Lyons and Victoir in Proc. R. Soc. Lond. A 460(2041):169-198, 2004) provides a powerful alternative to Monte Carlo simulation for the integration of certain functionals on Wiener space. More specifically, and in the language of mathematical finance, cubature allows for fast computation of European option prices in generic diffusion models.We give a random walk interpretation of cubature and similar (e.g. the Ninomiya-Victoir) weak approximation schemes. By using rough path analysis, we are able to establish weak convergence for general path-dependent option prices.

  18. Thulium heat sources for space power applications

    SciTech Connect (OSTI)

    Alderman, C.J.

    1992-05-01

    Reliable power supplies for use in transportation and remote systems will be an important part of space exploration terrestrial activities. A potential power source is available in the rare earth metal, thulium. Fuel sources can be produced by activating Tm-169 targets in the space station reactor. The resulting Tm-170 heat sources can be used in thermoelectric generators to power instrumentation and telecommunications located at remote sites such as weather stations. As the heat source in a dynamic Sterling or Brayton cycle system, the heat source can provide a lightweight power source for rovers or other terrestrial transportation systems.

  19. On geometry of the scator space

    E-Print Network [OSTI]

    Artur Kobus; Jan L. Cie?li?ski

    2015-06-16

    We consider the scator space - a hypercomplex, non-distributive hyperbolic algebra introduced by Fern\\'andez-Guasti and Zald\\'ivar. We discuss isometries of the scator space and find consequent method for treating them algebraically, along with scators themselves. It occurs that introduction of zero divisors cannot be avoided while dealing with these isometries. The scator algebra may be endowed with a nice physical interpretation, although it suffers from lack of some physically demanded important features. Despite that, there arises some open questions, e.g., whether hypothetical tachyons can be considered as usual particles possessing time-like trajectories.

  20. Chiral gap effect in curved space

    E-Print Network [OSTI]

    Antonino Flachi; Kenji Fukushima

    2015-05-29

    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.

  1. Holographic Space-time and Newton's Law

    E-Print Network [OSTI]

    Tom Banks; Willy Fischler

    2013-10-25

    We derive Newton's Law from the formalism of Holographic Space-Time (HST). More precisely, we show that for a large class of Hamiltonians of the type proposed previously for the HST description of a geodesic in Minkowski space, the eikonal for scattering of two massless particles at large impact parameter scales as expected with the impact parameter and the energies of the particles in the center of mass (CM) frame. We also discuss the criteria for black hole production in this collision, and find an estimate, purely within the HST framework, for the impact parameter at which it sets in, which coincides with the estimate based on general relativity.

  2. Space and Remote Sensing (ISR-2)

    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: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust,Field-effect Photovoltaics -7541C. TemperatureThousand CubicArchived1 Space Science2 Space

  3. Ordered Spaces all of whose Continuous Images are Normal

    E-Print Network [OSTI]

    Fleissner, William G.; Levy, Ronnie

    1989-01-01

    Some spaces, such as compact Hausdorff spaces, have the property that every regular continuous image is normal. In this paper, we look at such spaces. In particular, it is shown that if a normal space has finite Stone-Cech remainder, then every...

  4. National Aeronautics and Space Administration Advanced Exploration Systems

    E-Print Network [OSTI]

    Waliser, Duane E.

    affordability and drive a rapid pace of progress. · Infuse new technologies developed by the Space Technology

  5. Radon space and Adaboost for Pose Estimation Patrick Etyngier1

    E-Print Network [OSTI]

    Audibert, Jean-Yves

    Radon space and Adaboost for Pose Estimation Patrick Etyngier1 Nikos Paragios2 Renaud Keriven1 in the radon space consist of our feature space. Such features are associ- ated with [AdaBoost] learners spaces and methods exist for fast line extraction and manipulation (Hough[5, 10], Radon [10]). Our method

  6. Japanese Future Space Programs for High Energy Astrophysics KAZUHISA MITSUDA

    E-Print Network [OSTI]

    Mitsuda, Kazuhisa

    Japanese Future Space Programs for High Energy Astrophysics KAZUHISA MITSUDA Institute of space and astronautical science, Sagamihara 229-8510, Japan ABSTRACT. Japanese future space programs for high energy the Japanese future space high energy astrophysics missions in 2000's and early 2010's. The approved

  7. National Aeronautics and Space Administration NASA's Recommendations to

    E-Print Network [OSTI]

    Rathbun, Julie A.

    National Aeronautics and Space Administration 1 NASA's Recommendations to Space-Faring Entities Release: July 20, 2011 #12;National Aeronautics and Space Administration 2 Revision and History Page of Apollo Hardware 10/28/2011 #12;National Aeronautics and Space Administration 3 HUMAN EXPLORATION

  8. Source: State of the Canadian Space Sector 2011 STREAM D

    E-Print Network [OSTI]

    Dawson, Jeff W.

    is to prepare the students to meet the high standards required by the space industry. #12;STREAM D SPACE SYSTEMS standards required by the space industry. · As an aerospace engineer, you will design and develop space. #12;In Canada ­ PRIVATE INDUSTRYPRIVATE INDUSTRY · MDA with SSLoral · COM DEV International · Magellan

  9. HARMONIC TWOSPHERES IN COMPACT SYMMETRIC SPACES, REVISITED

    E-Print Network [OSTI]

    Bath, University of

    HARMONIC TWO­SPHERES IN COMPACT SYMMETRIC SPACES, REVISITED F. E. Burstall and M. A. Guest Introduction The purpose of this article is to give a new description of harmonic maps from the two­sphere S 2 of such harmonic maps occur when G=K = S n or CP n . In 1967, E. Calabi gave a construction of all harmonic maps

  10. HARMONIC MORPHISMS, HERMITIAN STRUCTURES AND SYMMETRIC SPACES

    E-Print Network [OSTI]

    Gudmundsson, Sigmundur

    HARMONIC MORPHISMS, HERMITIAN STRUCTURES AND SYMMETRIC SPACES In this text we refer to the following papers by capital letters as indicated. [A] M. Svensson, On holomorphic harmonic morphisms, Manuscripta Math. 107 (2002), 1­13. [B] M. Svensson, Harmonic morphisms from even-dimensional hyper- bolic

  11. SUBSPACE REGRESSION IN REPRODUCING KERNEL HILBERT SPACE

    E-Print Network [OSTI]

    SUBSPACE REGRESSION IN REPRODUCING KERNEL HILBERT SPACE L. Hoegaerts #3; J.A.K. Suykens #3; J: We focus on three methods for finding a suitable subspace for regression in a reproducing kernel correlation analysis and we demonstrate how this fits within a more general context of subspace regression

  12. Thermofield-Bosonization on Compact Space

    E-Print Network [OSTI]

    R. L. P. G. Amaral; L. V. Belvedere

    2014-08-13

    We develop the construction of fermionic fields in terms of bosonic ones to describe free and interaction models in the circle, using thermofielddynamics. The description in the case of finite temperature is developed for both normal modes and zero modes. The treatment extends the thermofield-bosonization for periodic space.

  13. Naval Research Laboratory Stennis Space Center

    E-Print Network [OSTI]

    Naval Research Laboratory Stennis Space Center Mississippi 39529 www7320.nrlssc.navy.mil/ Ocean Ocean prediction technology The Naval Research Laboratory (NRL) is the US Navy corporate laboratory, dedicated to addressing Navy unique problems and enabling the Navy to operate efficiently and safely. Unique

  14. Doctoral Programs Atmospheric, Oceanic & Space Sciences

    E-Print Network [OSTI]

    Eustice, Ryan

    Science Research Areas High Energy Density Physics/Laboratory Astrophysics Magnetospheric & Ionosphere/Thermosphere Physics Planetary Magnetospheres Solar & Heliospheric Physics Space Weather Aeronomy For Faculty involved,Recipient, Department of Energy Early Career Award Margaret Kivelson, Member, National Academy of Sciences; Member

  15. Citizen Report National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Citizen Report National Aeronautics and Space Administration Dryden Flight Research Center A look/Carla Thomas #12;Citizen Report Fiscal Year 2012 Dryden Flight Research Center, located on the western edge the low-speed stability and control of a low-noise version of a proposed future Hybrid Wing Body aircraft

  16. Ramsey Theory for Product Spaces Pandelis Dodos

    E-Print Network [OSTI]

    Dodos, Pandelis

    Ramsey Theory for Product Spaces Pandelis Dodos Vassilis Kanellopoulos #12;#12;Preface I. Ramsey in mathematical practice. It originates from the works of Ramsey [Ra] and van der Waerden [vdW], and at the early, the last 40 years or so, Ramsey theory has expanded significantly, both in scope and in depth, and is now

  17. 2010 RAL Space Solar Impacts on Earth

    E-Print Network [OSTI]

    © 2010 RAL Space Solar Impacts on Earth: Revealed by NASA's Solar Dynamics Observatory & STEREO minimum for a century: · Why? What happened? · What does that mean for the Earth? · Will the next build up cycle begins... The Events of 1-4 August 2010: A Close Shave for the Earth! 1 August 2010 ­ The day

  18. INVARIANT RADON MEASURES ON MEASURED LAMINATION SPACE

    E-Print Network [OSTI]

    Hamenstädt, Ursula

    INVARIANT RADON MEASURES ON MEASURED LAMINATION SPACE URSULA HAMENST¨ADT Abstract. Let S be an oriented surface of genus g 0 with m 0 punctures and 3g - 3 + m 2. We classify all Radon measures class group MCG(S) naturally acts on ML as a group of homeomorphisms preserving a Radon measure

  19. Memory Space Representation Heterogeneous Network Process Migration

    E-Print Network [OSTI]

    Sun, Xian-He

    Memory Space Representation for Heterogeneous Network Process Migration Kasidit Chanchio Xian@bit.csc.lsu.edu http://www.csc.lsu.edu/~scs/ Abstract A major difficulty of heterogeneous process migration is how and effective for heterogeneous network process migration. 1. Introduction As network computing becomes

  20. Space & Real Estate Management University of Virginia

    E-Print Network [OSTI]

    Huang, Wei

    Space & Real Estate Management University of Virginia June, 2011 REAL PROPERTY DESK GUIDE #12;1 INTRODUCTION This desk guide contains information that will help you coordinate certain real estate matters that may impact your project. Since real estate matters require extensive review by a number of departments

  1. Automated Design Space Exploration with Aspen

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

    Spafford, Kyle L.; Vetter, Jeffrey S.

    2015-01-01

    Architects and applications scientists often use performance models to explore a multidimensional design space of architectural characteristics, algorithm designs, and application parameters. With traditional performance modeling tools, these explorations forced users to first develop a performance model and then repeatedly evaluate and analyze the model manually. These manual investigations proved laborious and error prone. More importantly, the complexity of this traditional process often forced users to simplify their investigations. To address this challenge of design space exploration, we extend our Aspen (Abstract Scalable Performance Engineering Notation) language with three new language constructs: user-defined resources, parameter ranges, and a collection ofmore »costs in the abstract machine model. Then, we use these constructs to enable automated design space exploration via a nonlinear optimization solver. We show how four interesting classes of design space exploration scenarios can be derived from Aspen models and formulated as pure nonlinear programs. The analysis tools are demonstrated using examples based on Aspen models for a three-dimensional Fast Fourier Transform, the CoMD molecular dynamics proxy application, and the DARPA Streaming Sensor Challenge Problem. Our results show that this approach can compose and solve arbitrary performance modeling questions quickly and rigorously when compared to the traditional manual approach.« less

  2. Spaces of Analytic Functions and Their Applications 

    E-Print Network [OSTI]

    Mitkovski, Mishko

    2011-10-21

    ? . . . . . . . . . . . . . . . . . . . 12 2.1.8. de Branges spaces BE . . . . . . . . . . . . . . . . 14 2.2. Dilation theory . . . . . . . . . . . . . . . . . . . . . . . . 16 2.2.1. Discrete case . . . . . . . . . . . . . . . . . . . . . 16 2.2.2. Continuous case... operators . 25 3.3. Criterion for l2-independence . . . . . . . . . . . . . . . . 26 3.4. Radius of dependence . . . . . . . . . . . . . . . . . . . . 30 3.5. Criterion for Riesz sequences . . . . . . . . . . . . . . . . 33 vii CHAPTER Page 3...

  3. Bulk Operations for Space-Partitioning Trees

    E-Print Network [OSTI]

    Ghanem, Thanaa M.; Shah, Rahul; Mokbel, Mohamed F.; Aref, Walid; Vitter, Jeffrey Scott

    2004-01-01

    The emergence of extensible index structures, e.g., GiST (Generalized Search Tree) [25] and SP-GiST (Space-Partitioning Generalized Search Tree) [3], calls for a set of extensible algorithms to support different operations (e.g., insertion, deletion...

  4. Averages in vector spaces over finite fields 

    E-Print Network [OSTI]

    Wright J.; Carbery A.; Stones B.

    2008-01-01

    We study the analogues of the problems of averages and maximal averages over a surface in R-n when the euclidean structure is replaced by that of a vector space over a finite field, and obtain optimal results in a number ...

  5. library.syr.edu Spaces and Places

    E-Print Network [OSTI]

    McConnell, Terry

    library.syr.edu #12;Spaces and Places Bird Library, the largest library on campus, welcomes over sciences, library administrative offices, the Special Collections Research Center, and the library café, Pages. Other library facilities include the Carnegie Library, the Geology Library in Heroy

  6. SPACE WEATHER RISKS FROM AN INSURANCE PERSPECTIVE

    E-Print Network [OSTI]

    Schrijver, Karel

    SPACE WEATHER RISKS FROM AN INSURANCE PERSPECTIVE 26.04.2011 Jan Eichner ­ Geo Risks Research #12, including geophysical hazards, weather-related hazards and potential consequences of climate change weather). · Linking geo-scientific research with business expertise in risk assessment, risk modeling

  7. Richard Holdaway Director, Space Science & Technology

    E-Print Network [OSTI]

    Crawford, Ian

    Richard Holdaway Director, Space Science & Technology Rutherford Appleton Laboratory 1 #12? Are there places beyond the Solar System where life might exist or arise? How did life on Earth start? Climate studies How does climate on Earth relate to climate on other planets? Do they evolve differently

  8. Convex Games in Banach Spaces Karthik Sridharan

    E-Print Network [OSTI]

    Tewari, Ambuj

    Convex Games in Banach Spaces Karthik Sridharan TTI-Chicago karthik@ttic.edu Ambuj Tewari TTI-Chicago tewari@ttic.edu Abstract We study the regret of an online learner playing a multi-round game in a Banach

  9. Space-state complexity of Korean chess and Chinese chess

    E-Print Network [OSTI]

    Donghwi Park

    2015-07-23

    This article describes how to calculate exact space-state complexities of Korean chess and Chinese chess. The state-space complexity (a.k.a. search-space complexity) of a game is defined as the number of legal game positions reachable from the initial position of the game. The number of exact space-state complexities are not known for most of games. However, we calculated actual space-state complexities of Korean chess and Chinese chess.

  10. SPACE WEATHER, VOL. 11, 529541, doi:10.1002/swe.20092, 2013 A survey of customers of space

    E-Print Network [OSTI]

    Schrijver, Karel

    SPACE WEATHER, VOL. 11, 529­541, doi:10.1002/swe.20092, 2013 A survey of customers of space weather August 2013; published 24 September 2013. [1] We present an analysis of the users of space weather information based on 2783 responses to an online survey among subscribers of NOAA's Space Weather Prediction

  11. National Aeronautics and Space Administration A Report on the FY 2009 Internal Research and Development Program Goddard Space Flight Center

    E-Print Network [OSTI]

    Christian, Eric

    National Aeronautics and Space Administration A Report on the FY 2009 Internal Research&D Achievements: #12;About the Cover National Aeronautics and Space Administration Among many other things in FY Aeronautics and Space Administration Goddard Space Flight Center Page 1 http

  12. Frio II Brine Pilot: Report on GEOSEQ Activities

    E-Print Network [OSTI]

    Daley, T.M.; Freifeld, B.M.; Ajo-Franklin, J.B.; Doughty, C.; Benson, S.M.

    2008-01-01

    prediction and interpretation of seismic property changesmodel for improved interpretation of seismic monitoring data

  13. Assessment of Brine Management for Geologic Carbon Sequestration

    E-Print Network [OSTI]

    Breunig, Hanna M.

    2014-01-01

    Area Southeast  Regional  Carbon  Sequestration  PartnershipCoast  Regional  Carbon  Sequestration  Partnership Water  West  Coast  Regional  Carbon  Sequestration  Partnership  (

  14. Food Saving in Texas: Drying, Brining, Canning, Curing. 

    E-Print Network [OSTI]

    Simpson, Cornelia

    1917-01-01

    , Home-made Hot Water Canner. A V E R A G E COMPOSITION OF FRESH A N D DRIED FRUITS. (From U. S. D. A . Bulletin 293 . ) FRESH FRUITS. K I N D Water Protein Ether Extract Zarbohydrates A s h Calories Per L b . Apples 84.-6 0.4 0.5 14.2 0.3 290 Figs.... BERRIES—can, bottled juice, jelly, preserves and jam. QUINCES—preserve and marmalade, jelly. CHERRIES—can, preserve. APRICOTS—dry, can, preserve and marmalade. MELON RINDS—preserve. W I N T E R G A R D E N S A N D HOT BEDS. Collards Green Onions...

  15. Frio II Brine Pilot: Report on GEOSEQ Activities

    E-Print Network [OSTI]

    Daley, T.M.; Freifeld, B.M.; Ajo-Franklin, J.B.; Doughty, C.; Benson, S.M.

    2008-01-01

    model for improved interpretation of seismic monitoring dataprediction and interpretation of seismic property changes

  16. Modeling acid-gas generation from boiling chloride brines

    E-Print Network [OSTI]

    Zhang, Guoxiang

    2010-01-01

    WAJ: Chemistry and geothermal systems. Academic Press 1977,system corrosion in geothermal systems [11–13]. For thisat the Geysers geothermal system in Northern California.

  17. Summary Results for Brine Migration Modeling Performed by LANL...

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

    tightly coupled solutions (Kim, 2010; Prevost, 2014). Tight coupling does not require freezing state variables or iterating between models, but it requires more computer memory and...

  18. Regional evaluation of brine management for geologic carbon sequestration

    E-Print Network [OSTI]

    Breunig, H.M.

    2014-01-01

    produced water from the Barnett Shale in Texas to freshwatervolume treated in the Barnett Shale project is smaller than

  19. Modeling acid-gas generation from boiling chloride brines

    E-Print Network [OSTI]

    Zhang, Guoxiang

    2010-01-01

    solutions, Journal of nuclear technology 2008, 164:180– 35.Modeling and Analysis. Nuclear Technology 1993, 104: 418- 2.

  20. The feasibility of deep well injection for brine disposal 

    E-Print Network [OSTI]

    Spongberg, Martin Edward

    1994-01-01

    collection, groundwater modeling, and fluid compatibility are discussed in detail. Injection system design, economics, and regulatory considerations are more related to economic than technical feasibility, and are discussed only as they relate to technical...

  1. Regional evaluation of brine management for geologic carbon sequestration

    E-Print Network [OSTI]

    Breunig, H.M.

    2014-01-01

    algae production, GCS, and other BUS options could improve joint feasibility: • Bio-diesel and/or biogas

  2. Dissolution testing of a metallic waste form in chloride brine

    SciTech Connect (OSTI)

    Dawn E Janney

    2006-11-01

    This paper is intended for publication in the peer-reviewed proceedings from the Scientific Basis for Nuclear Waste Management (at the Fall 2006 meeting of the Materials Research Society). The same material was presented in a 15-minute talk. Argonne National Laboratory has developed an electrometallurgical process for conditioning spent sodium-bonded metallic reactor fuel from the Experimental Breeder Reactor II (EBR-II). One waste stream from this process consists of a metal waste form (MWF) whose baseline composition is stainless steel alloyed with 15 wt% Zr (SS-15Zr) and whose microstructure is a eutectic intergrowth of iron solid solutions and Fe-Zr-Cr-Ni intermetallics. This paper reports scanning electron microscope (SEM) observations of corrosion products formed during static immersion tests in which coupons of surrogate MWF containing 10 wt% U (SS-15Zr-10U) were immersed in solutions with nominal pH values of 3 and 4 and 1000 ppm added chloride for 70 days at 50 °C. Although the majority of the surface areas of the coupons appear unchanged, linear areas with localized corrosion products apparently consisting of porous materials overlying corrosion-product-filled channels formed on both coupons, cross-cutting phase boundaries in the original eutectic microstructures. Many of the linear areas intersected the sample edge at notches present before the tests or followed linear flaws visible in pre-test images. Compositions of corrosion products differed significantly from the bulk composition, and the maximum observed concentration of U in corrosion products (~25 at%) slightly exceeded the highest reported values in actinide-bearing phases in uncorroded surrogate MWF samples with comparable concentrations of U (~17-19 at%).

  3. Wellbore flow model for carbon dioxide and brine

    E-Print Network [OSTI]

    Pan, L.

    2009-01-01

    with wellbore heat transmission handled semi- analytically.while wellbore heat transmission is handled semi-by lateral wellbore heat transmission is given by ? T ? T

  4. Modeling acid-gas generation from boiling chloride brines

    E-Print Network [OSTI]

    Zhang, Guoxiang

    2010-01-01

    of the unsaturated zone at Yucca Mountain, Nevada. J. ofwaste emplacement tunnels at Yucca Mountain, Nevada. J. ofScale Heater Test at Yucca Mountain. International Journal

  5. Assessment of Brine Management for Geologic Carbon Sequestration

    E-Print Network [OSTI]

    Breunig, Hanna M.

    2014-01-01

    water  management  options,  including:  geothermal  energy   extraction,  desalination,  salt  and  mineral   harvesting,  

  6. Wellbore flow model for carbon dioxide and brine

    E-Print Network [OSTI]

    Pan, L.

    2009-01-01

    saturation, and composition conditions from reservoir2 saturations at depth calculated by reservoir simulation.

  7. Assessment of Brine Management for Geologic Carbon Sequestration

    E-Print Network [OSTI]

    Breunig, Hanna M.

    2014-01-01

    sites  and  favorability  of  deep  EGS  (Roberts  geothermal  system  (EGS)  recharge,   underground  EGS  .  

  8. Regional evaluation of brine management for geologic carbon sequestration

    E-Print Network [OSTI]

    Breunig, H.M.

    2014-01-01

    are: (1) geothermal energy, (2) desalination, (3) salt,desalination; saline water for cooling towers; makeup water for enhanced oil recovery (EOR) systems; and geothermal

  9. Assessment of Brine Management for Geologic Carbon Sequestration

    E-Print Network [OSTI]

    Breunig, Hanna M.

    2014-01-01

    CO 2 ]  of  geothermal  heat,  desalination  water,  algae  geothermal  energy   extraction,  desalination,  salt  and  Geothermal  Energy  Systems CHP  Binary  Cycle Section  5.3  Non-­?potable  Water   NPV Reverse  Osmosis  Treatment Water  Sold  at  Desalination  

  10. Assessment of Brine Management for Geologic Carbon Sequestration

    E-Print Network [OSTI]

    Breunig, Hanna M.

    2014-01-01

    and  pumping  water  is  capital  and  energy  intensive,  such  as  geothermal  energy,  water  for  aquaculture,  substantial  capital,   energy,  and  water  demands  of  

  11. GEOTHERMAL ENERGY; 59 BASIC BIOLOGICAL SCIENCES; BRINES; DETOXIFICATIO...

    Office of Scientific and Technical Information (OSTI)

    PROCESSING; BACTERIA; BIOCHEMISTRY; BIOREACTORS; BIOTECHNOLOGY; GEOCHEMISTRY; GEOTHERMAL ENERGY; METALS; SLUDGES; TOXIC MATERIALS; CHEMISTRY; ELEMENTS; ENERGY; ENERGY SOURCES;...

  12. Regional evaluation of brine management for geologic carbon sequestration

    E-Print Network [OSTI]

    Breunig, H.M.

    2014-01-01

    typical of enhanced geothermal systems (EGS) which rechargefor enhanced oil recovery (EOR) systems; and geothermal

  13. Risk division Semi-analytical model of brine leakage through

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    , Canada: 508 wells in a 30km x 30 km area. from Bachu and Celia, 2009 hal-00658780,version1-18Jun2012 #12. (Pruess, 2006, for geothermal wells) · = > Thermal equilibrium (Oldenburg & Rinaldi 2011) > 8 Mt/y for 50 years > D=6.7 km from the injection to the abandonned well > Cement plug: 10 m high, weak

  14. Assessment of Brine Management for Geologic Carbon Sequestration

    E-Print Network [OSTI]

    Breunig, Hanna M.

    2014-01-01

    for  Geologic  Carbon  Sequestration. ”   International  of  Energy.  “Carbon  Sequestration  Atlas  of  the  Water  Extracted  from  Carbon  Sequestration  Projects."  

  15. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and...

    Office of Scientific and Technical Information (OSTI)

    Bibtex Format Close 0 pages in this document matching the terms "" Search For Terms: Enter terms in the toolbar above to search the full text of this document for pages...

  16. Modeling acid-gas generation from boiling chloride brines

    E-Print Network [OSTI]

    Zhang, Guoxiang

    2010-01-01

    chloride in superheated geothermal steam. Geothermics 1989,condensate from superheated geothermal steam. Implicationsexpansion of superheated geothermal steam, with implications

  17. HIGH-PRESSURE SOLVENT EXTRACTION OF METHANE FROM GEOPRESSURED BRINES:

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefield MunicipalTechnical Report:Speeding accessby aLED Street LightingFrom the BuildingHASL-258

  18. Brine Migration Experimental Studies for Salt Repositories | Department of

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of Natural GasAdjustmentsShirleyEnergyTher i n c i p a l De pEnergy Industrialofof Energy briefing isEnergy

  19. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article) |productionPatent:Compression (JournalPublisher'sLeakage into an

  20. Geochemical Impacts of Carbon Dioxide, Brine, Trace Metal and Organic

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(Journal Article) |productionPatent:Compression (JournalPublisher'sLeakage into

  1. Molecular Simulation of Carbon Dioxide Brine and Clay Mineral Interactions

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(JournalspectroscopyReport)Fermentative ActivitySciTech ConnecttermsMimics byand

  2. Molecular Simulation of Carbon Dioxide, Brine, and Clay Mineral (Journal

    Office of Scientific and Technical Information (OSTI)

    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 Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing(JournalspectroscopyReport)Fermentative ActivitySciTech ConnecttermsMimicsArticle) |

  3. Gauge fields and ghosts in Rindler space

    SciTech Connect (OSTI)

    Zhitnitsky, Ariel R.

    2010-11-15

    We consider a two-dimensional Maxwell system defined on the Rindler space with metric ds{sup 2}=exp(2a{xi}){center_dot}(d{eta}{sup 2}-d{xi}{sup 2}) with the goal to study the dynamics of the ghosts. We find an extra contribution to the vacuum energy in comparison with Minkowski space-time with metric ds{sup 2}=dt{sup 2}-dx{sup 2}. This extra contribution can be traced to the unphysical degrees of freedom (in Minkowski space). The technical reason for this effect to occur is the property of Bogolubov's coefficients which mix the positive- and negative-frequency modes. The corresponding mixture cannot be avoided because the projections to positive-frequency modes with respect to Minkowski time t and positive-frequency modes with respect to the Rindler observer's proper time {eta} are not equivalent. The exact cancellation of unphysical degrees of freedom which is maintained in Minkowski space cannot hold in the Rindler space. In the Becchi-Rouet-Stora-Tyutin (BRST) approach this effect manifests itself as the presence of BRST charge density in L and R parts. An inertial observer in Minkowski vacuum |0> observes a universe with no net BRST charge only as a result of cancellation between the two. However, the Rindler observers who do not ever have access to the entire space-time would see a net BRST charge. In this respect the effect resembles the Unruh effect. The effect is infrared (IR) in nature, and sensitive to the horizon and/or boundaries. We interpret the extra energy as the formation of the ''ghost condensate'' when the ghost degrees of freedom cannot propagate, but nevertheless do contribute to the vacuum energy. Exact computations in this simple two-dimensional model support the claim made in a previous paper [F. R. Urban and A. R. Zhitnitsky, Nucl. Phys. B835, 135 (2010).] that the ghost contribution might be responsible for the observed dark energy in a four-dimensional Friedmann-Lemaitre-Robertson-Walker universe.

  4. Quantization of Space and Time in 3 and in 4 Space-time Dimensions

    E-Print Network [OSTI]

    G. 't Hooft

    1996-08-16

    The fact that in Minkowski space, space and time are both quantized does not have to be introduced as a new postulate in physics, but can actually be derived by combining certain features of General Relativity and Quantum Mechanics. This is demonstrated first in a model where particles behave as point defects in 2 space dimensions and 1 time, and then in the real world having 3+1 dimensions. The mechanisms in these two cases are quite different, but the outcomes are similar: space and time form a (non-cummutative) lattice. These notes are short since most of the material discussed in these lectures is based on two earlier papers by the same author (gr-qc/9601014 and gr-qc/9607022), but the exposition given in the end is new.

  5. Medical Hardware for the Space Environment: An Engineering Experience at the National Aeronautics and Space Administration 

    E-Print Network [OSTI]

    Reyna, Baraquiel

    2011-10-21

    The complexity and amount of medical hardware needed by National Aeronautics and Space Administration (NASA) constantly shifts with mission requirements. Early missions such as Mercury, Gemini, and Apollo required minimal, relatively non-complex...

  6. PT invariant complex E(8) root spaces

    E-Print Network [OSTI]

    Andreas Fring; Monique Smith

    2010-10-11

    We provide a construction procedure for complex root spaces invariant under antilinear transformations, which may be applied to any Coxeter group. The procedure is based on the factorisation of a chosen element of the Coxeter group into two factors. Each of the factors constitutes an involution and may therefore be deformed in an antilinear fashion. Having the importance of the E(8)-Coxeter group in mind, such as underlying a particular perturbation of the Ising model and the fact that for it no solution could be found previously, we exemplify the procedure for this particular case. As a concrete application of this construction we propose new generalisations of Calogero-Moser Sutherland models and affine Toda field theories based on the invariant complex root spaces and deformed complex simple roots, respectively.

  7. Polymer quantization versus the Snyder noncommutative space

    E-Print Network [OSTI]

    Gorji, M A; Vakili, B

    2015-01-01

    We study a noncanonical Hilbert space representation of the polymer quantum mechanics. It is shown that Heisenberg algebra get some modifications in the constructed setup from which a generalized uncertainty principle will naturally come out. Although the extracted physical results are the same as those obtained from the standard canonical representation, the noncanonical representation may be notable in view of its possible connection with the generalized uncertainty theories suggested by string theory. In this regard, by considering an Snyder-deformed Heisenberg algebra we show that since the translation group is not deformed it can be identified with a polymer-modified Heisenberg algebra. In classical level, it is shown the noncanonical Poisson brackets are related to their canonical counterparts by means of a Darboux transformation on the corresponding phase space.

  8. Initial tests of thermoacoustic space power engine.

    SciTech Connect (OSTI)

    Backhaus, S. N.

    2002-01-01

    Future NASA deep-space missions will require radioisotope-powered electric generators that are just as reliable as current RTGs, but more efficient and of higher specific power (Wikg). Thennoacoustic engines at the -1-kW scale have converted high-temperature heat into acoustic, or PV, power without moving parts at 30% efficiency. Consisting of only tubes and a few heat exchangers, thennoacoustic engines are low mass and promise to be highly reliable. Coupling a thennoacoustic engine to a low mass, highly reliable and efficient linear alternator will create a heat-driven electric generator suitable for deep-space applications. Conversion efficiency data will be presented on a demonstration thennoacoustic engine designed for the 1 00-Watt power range.

  9. Thermoacoustic power systems for space applications

    SciTech Connect (OSTI)

    Backhaus, S. N.; Tward, E.; Pedach, M.

    2001-01-01

    Future NASA deep-space missions will require radioisotope-powered electric generators that are just as reliable as current RTGs, but more efficient and of higher specific power (W/kg). Thermoacoustic engines can convert high-temperature heat into acoustic, or PV, power without moving parts at 30% efficiency. Consisting of only tubes and a few heat exchangers, these engines are low mass and promise to be highly reliable. Coupling a thermoacoustic engine to a low-mass, highly reliable and efficient linear alternator will create a heat-driven electric generator suitable for deep-space applications. Data will be presented on the first tests of a demonstration thermoacoustic engine designed for the 100-Watt power range.

  10. The decay of hot KK space

    E-Print Network [OSTI]

    Adam R. Brown

    2015-04-30

    The non-perturbative instabilities of hot Kaluza-Klein spacetime are investigated. In addition to the known instability of hot space (the nucleation of 4D black holes) and the known instability of KK space (the nucleation of bubbles of nothing by quantum tunneling), we find two new instabilities: the nucleation of 5D black holes, and the nucleation of bubbles of nothing by thermal fluctuation. These four instabilities are controlled by two Euclidean instantons, with each instanton doing double duty via two inequivalent analytic continuations; thermodynamic instabilities of one are shown to be related to mechanical instabilities of the other. I also construct bubbles of nothing that are formed by a hybrid process involving both thermal fluctuation and quantum tunneling. There is an exact high-temperature/low-temperature duality that relates the nucleation of black holes to the nucleation of bubbles of nothing.

  11. Exploring theory space with Monte Carlo reweighting

    SciTech Connect (OSTI)

    Gainer, James S. [Univ. of Florida, Gainesville, FL (United States); Lykken, Joseph [Fermi National Accelerator Laboratory, Batavia, IL (United States); Matchev, Konstantin T. [Univ. of Florida, Gainesville, FL (United States); Mrenna, Stephen [Fermi National Accelerator Laboratory, Batavia, IL (United States); Park, Myeonghun [The Univ. of Tokyo, Kashiwa (Japan)

    2014-10-01

    Theories of new physics often involve a large number of unknown parameters which need to be scanned. Additionally, a putative signal in a particular channel may be due to a variety of distinct models of new physics. This makes experimental attempts to constrain the parameter space of motivated new physics models with a high degree of generality quite challenging. We describe how the reweighting of events may allow this challenge to be met, as fully simulated Monte Carlo samples generated for arbitrary benchmark models can be effectively re-used. In particular, we suggest procedures that allow more efficient collaboration between theorists and experimentalists in exploring large theory parameter spaces in a rigorous way at the LHC.

  12. Operator space approach to steering inequality

    E-Print Network [OSTI]

    Michal Horodecki; Marcin Marciniak; Zhi Yin

    2015-03-12

    In \\cite{JP2011,JPPVW2010} the operator space theory was applied to study bipartite Bell inequalities. The aim of the paper is to follow this line of research and use the operator space technique to analyze the steering scenario. We obtain a bipartite steering functional with unbounded largest violation of steering inequality, as well as we can construct all ingredients explicitly. It turns out that the unbounded largest violation is obtained by non maximally entangled state. Moreover, we focus on the bipartite dichotomic case where we construct a steering functional with unbounded largest violation of steering inequality. This phenomenon is different to the Bell scenario where only bounded largest violation can be obtained by any bipartite dichotomic Bell functional.

  13. Momentum-space Argonne V18 interaction

    SciTech Connect (OSTI)

    Veerasamy, S.; Polyzou, W. N.

    2011-09-15

    This paper gives a momentum-space representation of the Argonne V18 potential as an expansion in products of spin-isospin operators with scalar coefficient functions of the momentum transfer. Two representations of the scalar coefficient functions for the strong part of the interaction are given. One is as an expansion in an orthonormal basis of rational functions and the other as an expansion in Chebyshev polynomials on different intervals. Both provide practical and efficient representations for computing the momentum-space potential that do not require integration or interpolation. Programs based on both expansions are available as supplementary material. Analytic expressions are given for the scalar coefficient functions of the Fourier transform of the electromagnetic part of the Argonne V18. A simple method for computing the partial-wave projections of these interactions from the operator expressions is also given.

  14. Scalar Dark Matter From Theory Space

    SciTech Connect (OSTI)

    Birkedal-Hansen, Andreas; Wacker, Jay G.

    2003-12-26

    The scalar dark matter candidate in a prototypical theory space little Higgs model is investigated. We review all details of the model pertinent to a relic density calculation. We perform a thermal relic density calculation including couplings to the gauge and Higgs sectors of the model. We find two regions of parameter space that give acceptable dark matter abundances. The first region has a dark matter candidate with a mass {Omicron}(100 GeV), the second region has a candidate with a mass greater than {Omicron}(500 GeV). The dark matter candidate in either region is an admixture of an SU(2) triplet and an SU(2) singlet, thereby constituting a possible WIMP (weakly interacting massive particle).

  15. On the topology of graph picture spaces

    E-Print Network [OSTI]

    Martin, Jeremy L.

    2005-03-01

    V and edges E. The d-dimensional picture space Xd(G) is de ned as the projective algebraic set whose points are pictures of G in complex projective d-space Pd = PdC. A picture P consists of a point P(v) 2 Pd for each vertex v of G and a line P...(e) for each edge e, subject to the conditions P(v) 2 P(e) whenever v is an endpoint of e. Two fundamental operations of graph theory are deletion and contraction: given a graph G and an edge e, we may delete e to form a graph G e, or identify the end- points...

  16. Coherent State on SUq(2) Homogeneous Space

    E-Print Network [OSTI]

    N. Aizawa; R. Chakrabarti

    2009-06-30

    The generalized coherent states for quantum groups introduced by Jurco and Stovicek are studied for the simplest example SU_q(2) in full detail. It is shown that the normalized SU_q(2) coherent states enjoy the property of completeness, and allow a resolution of the unity. This feature is expected to play a key role in application of these coherent states in physical models. The homogeneous space of SU_q(2), i.e. the q-sphere of Podles, is reproduced in complex coordinates by using the coherent states. Differential calculus in the complex form on the homogeneous space is developed. High spin limit of the SU_q(2) coherent states is also discussed.

  17. Modern space-time and undecidability

    E-Print Network [OSTI]

    Rodolfo Gambini; Jorge Pullin

    2008-01-16

    The picture of space-time that Minkowski created in 1907 has been followed by two important developments in physics not contained in the original picture: general relativity and quantum mechanics. We will argue that the use of concepts of those theories to construct space-time implies conceptual modifications in quantum mechanics. In particular one can construct a viable picture of quantum mechanics without a reduction process that has outcomes equivalent to a picture with a reduction process. One therefore has two theories that are entirely equivalent experimentally but profoundly different in the description of reality they give. This introduces a fundamental level of undecidability in physics of a kind that has not been present before. We discuss some of the implications.

  18. Exploring theory space with Monte Carlo reweighting

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

    Gainer, James S.; Lykken, Joseph; Matchev, Konstantin T.; Mrenna, Stephen; Park, Myeonghun

    2014-10-13

    Theories of new physics often involve a large number of unknown parameters which need to be scanned. Additionally, a putative signal in a particular channel may be due to a variety of distinct models of new physics. This makes experimental attempts to constrain the parameter space of motivated new physics models with a high degree of generality quite challenging. We describe how the reweighting of events may allow this challenge to be met, as fully simulated Monte Carlo samples generated for arbitrary benchmark models can be effectively re-used. In particular, we suggest procedures that allow more efficient collaboration between theoristsmore »and experimentalists in exploring large theory parameter spaces in a rigorous way at the LHC.« less

  19. Polymer quantization versus the Snyder noncommutative space

    E-Print Network [OSTI]

    M. A. Gorji; K. Nozari; B. Vakili

    2015-06-10

    We study a noncanonical Hilbert space representation of the polymer quantum mechanics. It is shown that Heisenberg algebra get some modifications in the constructed setup from which a generalized uncertainty principle will naturally come out. Although the extracted physical results are the same as those obtained from the standard canonical representation, the noncanonical representation may be notable in view of its possible connection with the generalized uncertainty theories suggested by string theory. In this regard, by considering an Snyder-deformed Heisenberg algebra we show that since the translation group is not deformed it can be identified with a polymer-modified Heisenberg algebra. In classical level, it is shown the noncanonical Poisson brackets are related to their canonical counterparts by means of a Darboux transformation on the corresponding phase space.

  20. Using SPICA Space Telescope to characterize Exoplanets

    E-Print Network [OSTI]

    J. R. Goicoechea; B. Swinyard; G. Tinetti; T. Nakagawa; K. Enya; M. Tamura; M. Ferlet; K. G. Isaak; M. Wyatt; A. D. Aylward; M. Barlow; J. P. Beaulieu; A. Boccaletti; J. Cernicharo; J. Cho; R. Claudi; H. Jones; H. Lammer; A. Leger; J. Martín-Pintado; S. Miller; F. Najarro; D. Pinfield; J. Schneider; F. Selsis; D. M. Stam; J. Tennyson; S. Viti; G. White

    2008-09-15

    We present the 3.5m SPICA space telescope, a proposed Japanese-led JAXA-ESA mission scheduled for launch around 2017. The actively cooled ( 18 um). SPICA is one of the few space missions selected to go to the next stage of ESA's Cosmic Vision 2015-2025 selection process. In this White Paper we present the main specifications of the three instruments currently baselined for SPICA: a mid-infrared (MIR) coronagraph (~3.5 to ~27 um) with photometric and spectral capabilities (R~200), a MIR wide-field camera and high resolution spectrometer (R~30,000), and a far-infrared (FIR ~30 to ~210 um) imaging spectrometer - SAFARI - led by a European consortium. We discuss their capabilities in the context of MIR direct observations of exo-planets (EPs) and multiband photometry/high resolution spectroscopy observations of transiting exo-planets. We conclude that SPICA will be able to characterize the atmospheres of transiting exo-planets down to the super-Earth size previously detected by ground- or space-based observatories. It will also directly detect and characterize Jupiter/Neptune-size planets orbiting at larger separation from their parent star (>5-10 AU), by performing quantitative atmospheric spectroscopy and studying proto-planetary and debris disks. In addition, SPICA will be a scientific and technological precursor for future, more ambitious, IR space missions for exo-planet direct detection as it will, for example, quantify the prevalence exo-zodiacal clouds in planetary systems and test coronographic techniques, cryogenic systems and lightweight, high quality telescopes. (abridged)

  1. Matter on granular space-time

    E-Print Network [OSTI]

    Alexander N. Jourjine

    2010-03-12

    We develop further the formalism of the non-Abelian gauge field theory on a cell complex space-time and show how the gauge-invariant action and the equations of motion for gauge fields interacting with spinors can be written without a reference to the geometrical nature of the cells of the cell complex. The general results are illustrated with examples of solutions of equations of motion for U(N) and SU(N) gauge groups.

  2. Hydrogen atom in rotationally invariant noncommutative space

    E-Print Network [OSTI]

    Kh. P. Gnatenko; V. M. Tkachuk

    2014-11-03

    We consider the noncommutative algebra which is rotationally invariant. The hydrogen atom is studied in a rotationally invariant noncommutative space. We find the corrections to the energy levels of the hydrogen atom up to the second order in the parameter of noncommutativity. The upper bound of the parameter of noncommutativity is estimated on the basis of the experimental results for 1s-2s transition frequency.

  3. Fidelity Decay for Phase Space Displacements

    E-Print Network [OSTI]

    Diego V. Bevilaqua; Eric J. Heller

    2004-09-03

    In this letter we analyse the behavior of fidelity decay under a very specific kind of perturbation: phase space displacements. Under these perturbations, systems will decay following the Lyapunov regime only. Others universal regimes discussed in the literature are not presented in this case; instead, for small values of the perturbation we observe quantum freeze of the fidelity. We also show that it is possible to connect this result with the incoherent neutron scattering problem

  4. Wireless Transfer of Electricity in Outer Space

    E-Print Network [OSTI]

    Alexander Bolonkin

    2008-05-07

    Author offers conclusions from his research of a revolutionary new idea - transferring electric energy in the hard vacuum of outer space wirelessly, using a plasma power cord as an electric cable (wire). He shows that a certain minimal electric currency creates a compressed force that supports the plasma cable in the compacted form. A large energy can be transferred hundreds of millions of kilometers by this method. The required mass of the plasma cable is only hundreds of grams. He computed the macroprojects: transference of hundreds kilowatts of energy to Earth Space Station, transferring energy to the Moon or back, transferring energy to a spaceship at distance 100 million of kilometers, the transfer energy to Mars when one is located at opposed side of the distant Sun, transfer colossal energy from one of Earth's continents to another continent (for example, between Europe-USA) wirelessly-using Earth ionosphere as cable, using Earth as gigantic storage of electric energy, using the plasma ring as huge MagSail for moving of spaceships. He also demonstrates that electric currency in a plasma cord can accelerate or brake spacecraft and space apparatus.

  5. On Minkowski space and finite geometry

    E-Print Network [OSTI]

    Marko Orel

    2014-10-08

    The main aim of this interdisciplinary paper is to characterize all maps on finite Minkowski space of arbitrary dimension $n$ that map pairs of distinct light-like events into pairs of distinct light-like events. Neither bijectivity of maps nor preservation of light-likeness in the opposite direction, i.e. from codomain to domain, is assumed. We succeed in in many cases, which include the one with $n$ divisible by 4 and the one with $n$ odd and $\\geq 9$, by showing that both bijectivity of maps and the preservation of light-likeness in the opposite direction is obtained automatically. In general, the problem of whether there exist non-bijective mappings that map pairs od distinct light-like events into pairs of distinct light-like events is shown to be related to one of the central problems in finite geometry, namely to existence of ovoids in orthogonal polar space. This problem is still unsolved in general despite a huge amount of research done in this area in the last few decades. The proofs are based on the study of a core of an affine polar graph, which yields results that are closely related to the ones obtained previously by Cameron and Kazanidis for the point graph of a polar space.

  6. Superstring Compactification and Target Space Duality

    E-Print Network [OSTI]

    John H. Schwarz

    1991-08-26

    This review talk focusses on some of the interesting developments in the area of superstring compactification that have occurred in the last couple of years. These include the discovery that ``mirror symmetric" pairs of Calabi--Yau spaces, with completely distinct geometries and topologies, correspond to a single (2,2) conformal field theory. Also, the concept of target-space duality, originally discovered for toroidal compactification, is being extended to Calabi--Yau spaces. It also associates sets of geometrically distinct manifolds to a single conformal field theory. A couple of other topics are presented very briefly. One concerns conceptual challenges in reconciling gravity and quantum mechanics. It is suggested that certain ``distasteful allegations" associated with quantum gravity such as loss of quantum coherence, unpredictability of fundamental parameters of particle physics, and paradoxical features of black holes are likely to be circumvented by string theory. Finally there is a brief discussion of the importance of supersymmetry at the TeV scale, both from a practical point of view and as a potentially significant prediction of string theory.

  7. Space reactor safety, 1985--1995 lessons learned

    SciTech Connect (OSTI)

    Marshall, A.C.

    1995-12-31

    Space reactor safety activities and decisions have evolved over the last decade. Important safety decisions have been made in the SP-100, Space Exploration Initiative, NEPSTP, SNTP, and Bimodal Space Reactor programs. In addition, international guidance on space reactor safety has been instituted. Space reactor safety decisions and practices have developed in the areas of inadvertent criticality, reentry, radiological release, orbital operation, programmatic, and policy. In general, the lessons learned point out the importance of carefully reviewing previous safety practices for appropriateness to space nuclear programs in general and to the specific mission under consideration.

  8. SpacePy - a Python-based library of tools for the space sciences

    SciTech Connect (OSTI)

    Morley, Steven K [Los Alamos National Laboratory; Welling, Daniel T [Los Alamos National Laboratory; Koller, Josef [Los Alamos National Laboratory; Larsen, Brian A [Los Alamos National Laboratory; Henderson, Michael G [Los Alamos National Laboratory

    2010-01-01

    Space science deals with the bodies within the solar system and the interplanetary medium; the primary focus is on atmospheres and above - at Earth the short timescale variation in the the geomagnetic field, the Van Allen radiation belts and the deposition of energy into the upper atmosphere are key areas of investigation. SpacePy is a package for Python, targeted at the space sciences, that aims to make basic data analysis, modeling and visualization easier. It builds on the capabilities of the well-known NumPy and MatPlotLib packages. Publication quality output direct from analyses is emphasized. The SpacePy project seeks to promote accurate and open research standards by providing an open environment for code development. In the space physics community there has long been a significant reliance on proprietary languages that restrict free transfer of data and reproducibility of results. By providing a comprehensive, open-source library of widely used analysis and visualization tools in a free, modern and intuitive language, we hope that this reliance will be diminished. SpacePy includes implementations of widely used empirical models, statistical techniques used frequently in space science (e.g. superposed epoch analysis), and interfaces to advanced tools such as electron drift shell calculations for radiation belt studies. SpacePy also provides analysis and visualization tools for components of the Space Weather Modeling Framework - currently this only includes the BATS-R-US 3-D magnetohydrodynamic model and the RAM ring current model - including streamline tracing in vector fields. Further development is currently underway. External libraries, which include well-known magnetic field models, high-precision time conversions and coordinate transformations are wrapped for access from Python using SWIG and f2py. The rest of the tools have been implemented directly in Python. The provision of open-source tools to perform common tasks will provide openness in the analysis methods employed in scientific studies and will give access to advanced tools to all space scientists regardless of affiliation or circumstance.

  9. Perceptual prototypes : towards a sensory pedagogy of space

    E-Print Network [OSTI]

    Papadopoulou, Athina, S.M. Massachusetts Institute of Technology

    2014-01-01

    Architecture education, by being enclosed in studios and by focusing on formal qualities of spaces, has been detached from the direct experience of space and has prioritized vision over the other senses. If we are to extend ...

  10. California State University, Fullerton The Pollak Library Space Plan

    E-Print Network [OSTI]

    de Lijser, Peter

    Librarian's Council members should be also acknowledged for hours of productive discussion of library trends ..............................................................5 Trends Affecting the Use of Library SpaceCalifornia State University, Fullerton The Pollak Library Space Plan From the Collections

  11. Physically based mechanical metaphors in architectural space planning 

    E-Print Network [OSTI]

    Arvin, Scott Anthony

    2004-09-30

    Physically based space planning is a means for automating the conceptual design process by applying the physics of motion to space plan elements. This methodology provides for a responsive design process, allowing a designer to easily make decisions...

  12. Design space exploration for multiprocessor-based embedded systems 

    E-Print Network [OSTI]

    Mohanty, Debashis

    2001-01-01

    Design space exploration is the process of obtaining the optimal design out of all possible design alternatives. The design-space becomes very large when the target architecture consists of heterogeneous components, and it is not possible to explore...

  13. Quantifying flexibility in the operationally responsive space paradigm

    E-Print Network [OSTI]

    Viscito, Lauren

    2009-01-01

    Designing complex space systems that will deliver value in the presence of an uncertain future is difficult. As space system lifetimes are now measured in decades, the systems face increased risk from uncertain future ...

  14. Girlhood Geographies: Mapping Gendered Spaces in Victorian Literature for Children 

    E-Print Network [OSTI]

    Fritz, Sonya Sawyer

    2012-02-14

    in their ability to determine and engage in behavior appropriate to the spaces in which they lived. I argue that, by portraying girls' negotiation of the spaces of the home, outdoors, school, and street, Victorian children's literature sought to organize...

  15. Measuring space systems flexibility : a comprehensive six-element framework

    E-Print Network [OSTI]

    Nilchiani, Roshanak

    2005-01-01

    Space systems are extremely delicate and costly engineering artifacts that take a long time to design, manufacture, and launch into space and after they are launched, there is limited access to them. Millions of dollars ...

  16. OPERADS AND KNOT SPACES 1. Introduction Let Em denote the ...

    E-Print Network [OSTI]

    Knot space models through homotopy limits of configuration spaces ..... These properties led to this construction's independent discovery, its ...... to check, as repeating coordinates and passing to the quotient ˜Ck?[Rm]? are processes which.

  17. Apollo and the Space Race! Orbit Transfer, Interplanetary Travel!

    E-Print Network [OSTI]

    Stengel, Robert F.

    of "Think Tanks"" !# Space, a "new frontier" for strategy" 4! #12;Increased Government Spending" !# 1958 from going "hog wild"" !# Space policy should shield spy satellites, other military systems" !# Open

  18. Artificial nature : water infrastructure and its experience as natural space

    E-Print Network [OSTI]

    Demirta?, Fatma Asl?han, 1970-

    2000-01-01

    This work is about water infrastructure and its experience as urban and natural space. It deals with the concepts of nature/geography, technology, and the integral experiential space by analyzing water dams and reservoirs ...

  19. Engineering a robotic exoskeleton for space suit simulation

    E-Print Network [OSTI]

    Meyen, Forrest Edward

    2013-01-01

    Novel methods for assessing space suit designs and human performance capabilities are needed as NASA prepares for manned missions beyond low Earth orbit. Current human performance tests and training are conducted in space ...

  20. Spatial Valuation of Open Space Externalities in Baltimore County, Maryland 

    E-Print Network [OSTI]

    Gurung, Kushal

    2012-11-08

    Different open space types are assumed to be valued in different ways by the public. This thesis analyzes four spatially explicit hedonic models of Baltimore County, Maryland to examine the effect of six different open spaces types on house value...

  1. Space Nuclear Program INL's role in energizing exploration

    ScienceCinema (OSTI)

    Idaho National Laboratory

    2010-01-08

    Idaho National Laboratory is helping make space exploration possible with the development of radioisotope power systems, which can work in areas too harsh and too isolated in space where the suns rays cannot be used for energy.

  2. The History of Nuclear Power in Space | Department of Energy

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

    The History of Nuclear Power in Space The History of Nuclear Power in Space June 9, 2015 - 11:42am Addthis Marissa Newhall Marissa Newhall Director of Digital Strategy &...

  3. The SAS System PHYSICAL FACILITIES SPACE FILE PAGE: 1

    E-Print Network [OSTI]

    Fernandez, Eduardo

    The SAS System PHYSICAL FACILITIES SPACE FILE PAGE: 1 PGM = SPAR1 2010 FLORIDA ATLANTIC UNIVERSITY SPACE FILE PAGE: 2 PGM = SPAR1 2010 FLORIDA ATLANTIC UNIVERSITY REPORT: SPA130 ROOM INVENTORY REPORT RUN

  4. The SAS System PHYSICAL FACILITIES SPACE FILE PAGE: 1

    E-Print Network [OSTI]

    Fernandez, Eduardo

    The SAS System PHYSICAL FACILITIES SPACE FILE PAGE: 1 PGM = SPAR1 2010 FLORIDA ATLANTIC UNIVERSITY:515:10105671124552::::P515_REPORTS_I... #12;The SAS System PHYSICAL FACILITIES SPACE FILE PAGE: 2 PGM = SPAR1 2010 FLORIDA

  5. Semi--vector spaces and units of measurement

    E-Print Network [OSTI]

    Josef Janyška; Marco Modugno; Raffaele Vitolo

    2007-10-05

    This paper is aimed at introducing an algebraic model for physical scales and units of measurement. This goal is achieved by means of the concept of ``positive space'' and its rational powers. Positive spaces are 1-dimensional ``semi-vector spaces'' without the zero vector. A direct approach to this subject might be sufficient. On the other hand, a broader mathematical understanding requires the notions of sesqui- and semi-tensor products between semi-vector spaces and vector spaces. So, the paper is devoted to an original contribution to the algebraic theory of semi-vector spaces, to the algebraic analysis of positive spaces and, eventually, to the algebraic model of physical scales and units of measurement in terms of positive spaces.

  6. High-dimensional design space visualization for conceptual structural design

    E-Print Network [OSTI]

    Mueller, Caitlin T

    2014-01-01

    This thesis focuses on visualizing high-dimensional design spaces for early-stage design problems in structural engineering and related disciplines. The design space, which is defined as the n + 1-dimensional surface that ...

  7. Working Group Report on - Space Nuclear Power Systems and Nuclear...

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

    Working Group Report on - Space Nuclear Power Systems and Nuclear Waste Technology R&D Working Group Report on - Space Nuclear Power Systems and Nuclear Waste Technology R&D "Even...

  8. Analysis for robotic assembly of large flexible space structures

    E-Print Network [OSTI]

    Mangalgiri, Vickram S. (Vickram Suresh), 1979-

    2004-01-01

    Space solar power is a renewable, environment-friendly alternative to satisfy future terrestrial power needs. Space solar power stations will need to have large dimensions (on the order of hundreds of meters) to be able ...

  9. Comparative Usability Study of Two Space Logistics Analysis Tools

    E-Print Network [OSTI]

    Lee, Chairwoo

    Future space exploration missions and campaigns will require sophisticated tools to help plan and analyze logistics. To encourage their use, space logistics tools must be usable: a design concept encompassing terms such ...

  10. National Aeronautics and Space Administration www.nasa.gov

    E-Print Network [OSTI]

    Christian, Eric

    National Aeronautics and Space Administration www.nasa.gov Volume 2 Issue 15 August 2006 Goddard Prize Pg 7 National Aeronautics and Space Administration www.nasa.gov Volume 2 Issue 15 August 2006 #12

  11. National Aeronautics and Space Administration www.nasa.gov

    E-Print Network [OSTI]

    Christian, Eric

    National Aeronautics and Space Administration www.nasa.gov Volume 2 Issue 17 September 2006 GoddardView National Aeronautics and Space Administration www.nasa.gov Volume 2 Issue 17 September 2006 Earth

  12. GoddardView National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Christian, Eric

    GoddardView National Aeronautics and Space Administration www.nasa.gov Volume 3 Issue 9 July 2007 On Pg 11 National Aeronautics and Space Administration www.nasa.gov Volume 3 Issue 9 July 2007 LRO

  13. NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MISSION SCIENCE REQUIREMENTS

    E-Print Network [OSTI]

    Rathbun, Julie A.

    MSC-02S3t~ K NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MISSION SCIENCE REQUIREMENTS AS-511/CSM DIRECTORATE MANNED SPACECRAFT CENTER .HOUSTON.TEXAS #12;NATIONAL AERONAUTICS AND SPACE ADMINISTRATION MISSION

  14. National Aeronautics and Space Administration www.nasa.gov

    E-Print Network [OSTI]

    Christian, Eric

    National Aeronautics and Space Administration www.nasa.gov Volume 3 Issue 6 April 2007 GoddardView National Aeronautics and Space Administration www.nasa.gov Volume 3 Issue 6 April 2007 Deep Impact Extended

  15. GoddardView National Aeronautics and Space Administration

    E-Print Network [OSTI]

    Christian, Eric

    GoddardView National Aeronautics and Space Administration www.nasa.gov Volume 3 Issue 8 June 2007 Commemorative Issue Royal Visit 2007: Her Majesty Queen Elizabeth II May 8, 2007 National Aeronautics and Space

  16. The bioenergetics of walking and running in space suits

    E-Print Network [OSTI]

    Carr, Christopher E. (Christopher Edward), 1976-

    2005-01-01

    Space-suited activity is critical for human spaceflight, and is synonymous with human planetary exploration. Space suits impose kinematic and kinetic boundary conditions that affect movement and locomotion, and in doing ...

  17. Vacuum space-times with controlled singularities and without symmetries

    E-Print Network [OSTI]

    Piotr T. Chru?ciel; Paul Klinger

    2015-07-01

    We present a family of four-dimensional vacuum space-times with asymptotically velocity dominated singularities and without symmetries.

  18. Naked strong curvature singularities in Szekeres space-times

    E-Print Network [OSTI]

    Pankaj S. Joshi; Andrzej Krolak

    1996-05-17

    We investigate the occurrence and nature of naked singularities in the Szekeres space-times. These space-times represent irrotational dust. They do not have any Killing vectors and they are generalisations of the Tolman-Bondi-Lemaitre space-times. It is shown that in these space-times there exist naked singularities that satisfy both the limiting focusing condition and the strong limiting focusing condition. The implications of this result for the cosmic censorship hypothesis are discussed.

  19. Goals of the ARISE Space VLBI Mission

    E-Print Network [OSTI]

    James S. Ulvestad

    1999-01-26

    Supermassive black holes, with masses of 10^6 to more than 10^9 solar masses, are among the most spectacular objects in the Universe, and are laboratories for physics in extreme conditions. The primary goal of ARISE (Advanced Radio Interferometry between Space and Earth) is to use the technique of Space VLBI to increase our understanding of black holes and their environments, by imaging the havoc produced in the near vicinity of the black holes by their enormous gravitational fields. The mission will be based on a 25-meter space-borne radio telescope operating at frequencies between 8 and 86 GHz, roughly equivalent to an orbiting element of the Very Long Baseline Array. In an elliptical orbit with an apogee height of 40,000-100,000 km, ARISE will provide resolution of 15 microarcseconds or better, 5-10 times better than that achievable on the ground. At frequencies of 43 and 86 GHz, the resolution of light weeks to light months in distant quasars will complement the gamma-ray and X-ray observations of high-energy photons, which come from the same regions near the massive black holes. At 22 GHz, ARISE will image the water maser disks in active galaxies more than 15 Mpc from Earth, probing accretion physics and giving accurate measurements of black-hole masses. ARISE also will study gravitational lenses at resolutions of tens of microarcseconds, yielding important information on the dark-matter distribution and on the possible existence of compact objects with masses of 10^3 to 10^6 solar masses.

  20. Near approximations via general ordered topological spaces

    E-Print Network [OSTI]

    M. Abo-Elhamayel

    2014-12-27

    Rough set theory is a new mathematical approach to imperfect knowledge. The notion of rough sets is generalized by using an arbitrary binary relation on attribute values in information systems, instead of the trivial equality relation. The topology induced by binary relations is used to generalize the basic rough set concepts. This paper studies near approximation via general ordered topological approximation spaces which may be viewed as a generalization of the study of near approximation from the topological view. The basic concepts of some increasing (decreasing) near approximations, increasing (decreasing) near boundary regions and increasing (decreasing) near accuracy were introduced and sufficiently illustrated. Moreover, proved results, implications and add examples.