National Library of Energy BETA

Sample records for measurement-based stability assessment

  1. Enterprise Assessments Review of Mine Safety, Stabilization,...

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

    The U.S. Department of Energy Office of Enterprise Assessments (EA) conducted an independent review of a number of aspects of mine safety, stabilization, and habitability at the ...

  2. Environmental Assessment -- Test Area North pool stabilization project update

    SciTech Connect (OSTI)

    1997-08-01

    The purpose of this Environmental Assessment (EA) is to update the ``Test Area North Pool Stabilization Project`` EA (DOE/EA-1050) and finding of no significant impact (FONSI) issued May 6, 1996. This update analyzes the environmental and health impacts of a drying process for the Three Mile Island (TMI) nuclear reactor core debris canisters now stored underwater in a facility on the Idaho National Engineering and Environmental Laboratory (INEEL). A drying process was analyzed in the predecision versions of the EA released in 1995 but that particular process was determined to be ineffective and dropped from the EA/FONSI issued May 6, 1996. A new drying process was subsequently developed and is analyzed in Section 2.1.2 of this document. As did the 1996 EA, this update analyzes the environmental and health impacts of removing various radioactive materials from underwater storage, dewatering these materials, constructing a new interim dry storage facility, and transporting and placing the materials into the new facility. Also, as did the 1996 EA, this EA analyzes the removal, treatment and disposal of water from the pool, and placement of the facility into a safe, standby condition. The entire action would take place within the boundaries of the INEEL. The materials are currently stored underwater in the Test Area North (TAN) building 607 pool, the new interim dry storage facility would be constructed at the Idaho Chemical Processing Plant (ICPP) which is about 25 miles south of TAN.

  3. Initial assessment of the MHD stability of TMX-U

    SciTech Connect (OSTI)

    Nexsen, W.E.

    1983-08-04

    In its operation to date TMX-U has reached values of beta which, for all except the hot electron beta, are close to the proposal values and has not encountered MHD stability problems. The hot electron beta values are presently limited by gyrotron output power and pulse length as well as ion confinement time. Further exploration of stability awaits full thermal barrier operation.

  4. Strategies for Voltage Control and Transient Stability Assessment

    SciTech Connect (OSTI)

    Hiskens, Ian A.

    2013-09-25

    As wind generation grows, its influence on power system performance will becoming increasingly noticeable. Wind generation di ffers from traditional forms of generation in numerous ways though, motivating the need to reconsider the usual approaches to power system assessment and performance enhancement. The project has investigated the impact of wind generation on transient stability and voltage control, identifying and addressing issues at three distinct levels of the power system: 1) at the device level, the physical characteristics of wind turbine generators (WTGs) are quite unlike those of synchronous machines, 2) at the wind-farm level, the provision of reactive support is achieved through coordination of numerous dissimilar devices, rather than straightforward generator control, and 3) from a systems perspective, the location of wind-farms on the sub-transmission network, coupled with the variability inherent in their power output, can cause complex voltage control issues. The project has sought to develop a thorough understanding of the dynamic behaviour of type-3 WTGs, and in particular the WECC generic model. The behaviour of such models is governed by interactions between the continuous dynamics of state variables and discrete events associated with limits. It was shown that these interactions can be quite complex, and may lead to switching deadlock that prevents continuation of the trajectory. Switching hysteresis was proposed for eliminating deadlock situations. Various type-3 WTG models include control blocks that duplicate integrators. It was shown that this leads to non-uniqueness in the conditions governing steady-state, and may result in pre- and post-disturbance equilibria not coinciding. It also gives rise to a zero eigenvalue in the linearized WTG model. In order to eliminate the anomalous behaviour revealed through this investigation, WECC has now released a new generic model for type-3 WTGs. Wind-farms typically incorporate a variety of

  5. Assessment of spent-fuel waste-form/stabilizer alternatives for geologic disposal

    SciTech Connect (OSTI)

    Einziger, R.E.; Himes, D.A.

    1982-06-01

    The Office of Nuclear Waste Isolation (ONWI) is studying the possibility of burying canisterized unreprocessed spent fuel in a deep geologic repository. One aspect of this study is an assessment of the possible spent fuel waste forms. The fuel performance portion of the Waste Form Assessment was to evaluate five candidate spent fuel waste forms for postemplacement performance with emphasis on their ability to retard the release of radionuclides to the repository geology. Spent fuel waste forms under general consideration were: (1) unaltered fuel assembly; (2) fuel assembly with end fittings removed to shorten the length; (3 rods vented to remove gases and resealed; (4) disassembled fuel bundles to close-pack the rods; and (5) rods chopped and fragments immobilized in a matrix material. Thirteen spent fuel waste forms, classified by generic stabilizer type, were analyzed for relative in-repository performance based on: (1) waste form/stabilizer support against lithostatic pressure; (2) long-term stability for radionuclide retention; (3) minimization of cladding degradation; (4) prevention of canister/repository breach due to pressurization; (5) stabilizer heat transfer; (6) the stabilizer as an independent barrier to radionuclide migration; and (7) prevention of criticality. The waste form candidates were ranked as follows: (1) the best waste form/stabilizer combination is the intact assembly, with or without end bells, vented (and resealed) or unvented, with a solid stabilizer; (2) a suitable alternative is the combination of bundled close-packed rods with a solid stabilizer around the outside of the bundle to resist lithostatic pressure; and (3) the other possible waste forms are of lower ranking with the worst waste form/stabilizer combination being the intact assembly with a gas stabilizer or the chopped fuel.

  6. 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.

  7. Physical Stability of Long-Term Surface Barriers-Assessment of Potentially Disruptive Natural Events

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

    ] a -" m HI BHI-00145 Rev. 00 Physical Stability of Long-Term Surface Barriers - Assessment of Potentially Disruptive Natural Events Authors N. R. Wing IT Hanford, Inc. F. M. Corpuz Bechtel Hanford, Inc. K. L. Petersen Pacific Northwest Laboratoy A. M. Tallman Westinghouse Hanford Company Date Published May 1995 HANFORD Prepared for the U.S. Department of Energy Office of Environmental Restoration and Waste Management Bechtel Hanford, Inc. Flichland, Washington Approved for Public Release .

  8. The stability of slopes subjected to blasting vibration -- Assessment and application in Hong Kong

    SciTech Connect (OSTI)

    Law, R.; Keller, R.

    1996-12-01

    In the rush to beat the clock before the handover of Hong Kong back to China in June of 1997, an unprecedented amount of infrastructure work is being undertaken at a breakneck pace. In the middle of this construction explosion, on this island of barren granite, stands some of the most concerning and restrictive slope stability measures. So conservative, these measures impact blasting and vibration control to an extent unmatched anywhere in the world. This paper covers the application of vibration limitations and assessment of the stability of rock slopes subjected to blasting vibration in a very challenging application. The widening of the Tuen Mun highway, a project to improve a main artery to the city center to accommodate the ever increasing traffic, involves the blasting of existing slopes in cuts only a few meters wide and up to 45 meters in height, while addressing assessment limitations in a variety of geological conditions. Discussed in the paper is the application of guidelines imposed by the Geotechnical Engineering Office and the Mines Division of the Hong Kong Government and measures taken to address them, i.e., adjustment of geological factors for practical application in blast design; blasting with minimal effect; and maximum protective measures. As slope stability becomes another ever-increasing environmental concern affecting blasting, these applications may be helpful in addressing the encroachment of impending restrictions in other parts of the world on challenging projects where blast assessment of slopes is a critical factor.

  9. Low-Severity Hydroprocessing to Stabilize Bio-oil: TechnoEconomic Assessment

    SciTech Connect (OSTI)

    Tews, Iva J.; Elliott, Douglas C.

    2014-08-31

    The impetus for this study was the suggestion that recent developments in fast pyrolysis (FP) bio-oil production had indicated instability of the bio-oil in storage which might lead to unacceptable viscosity increases. Commercial operation of FP in Finland began in 2014 and the distribution of the bio-oil to isolated users has been proposed as the long-term plan. Stability of the shipped bio-oil therefore became a concern. Experimental results at PNNL with low-severity hydroprocessing of bio-oil for stabilization has validated a process in which the stability of the bio-oil could be improved, as measured by viscosity increase following storage of the product at 80 °C for 24h. In the work reported here the assessed process configuration consists of fast pyrolysis followed by low temperature and pressure hydroprocessing to produce a stable fuel oil product. The product could then be stored for an extended period of time without significant viscosity increase. This work was carried out as part of a collaborative project between Technical Research Centre of Finland (VTT) and Pacific Northwest National Laboratory (PNNL). The public funding agents for the work were Tekes in Finland and the Bioenergy Technologies Office of the U.S. Department of Energy. The effort was proposed as an evaluation of the process developed in earlier collaboration and jointly invented by VTT and PNNL researchers.

  10. Role of slope stability in cumulative impact assessment of hydropower development: North Cascades, Washington

    SciTech Connect (OSTI)

    Lee, R.R.; Staub, W.P.

    1993-08-01

    Two environmental assessments considered the potential cumulative environmental impacts resulting from the development of eight proposed hydropower projects in the Nooksack River Basin and 11 proposed projects in the Skagit River Basin, North Cascades, Washington, respectively. While not identified as a target resource, slope stability and the alteration of sediment supply to creeks and river mainstems significantly affect other resources. The slope stability assessment emphasized the potential for cumulative impacts under disturbed conditions (e.g., road construction and timber harvesting) and a landslide-induced pipeline rupture scenario. In the case of small-scale slides, the sluicing action of ruptured pipeline water on the fresh landslide scarp was found to be capable of eroding significantly more material than the original landslide. For large-scale landslides, sluiced material was found to be a small increment of the original landslide. These results predicted that hypothetical accidental pipeline rupture by small-scale landslides may result in potential cumulative impacts for 12 of the 19 projects with pending license applications in both river basins. 5 refs., 2 tabs.

  11. Fast Dynamic Simulation-Based Small Signal Stability Assessment and Control

    SciTech Connect (OSTI)

    Acharya, Naresh; Baone, Chaitanya; Veda, Santosh; Dai, Jing; Chaudhuri, Nilanjan; Leonardi, Bruno; Sanches-Gasca, Juan; Diao, Ruisheng; Wu, Di; Huang, Zhenyu; Zhang, Yu; Jin, Shuangshuang; Zheng, Bin; Chen, Yousu

    2014-12-31

    Power grid planning and operation decisions are made based on simulation of the dynamic behavior of the system. Enabling substantial energy savings while increasing the reliability of the aging North American power grid through improved utilization of existing transmission assets hinges on the adoption of wide-area measurement systems (WAMS) for power system stabilization. However, adoption of WAMS alone will not suffice if the power system is to reach its full entitlement in stability and reliability. It is necessary to enhance predictability with "faster than real-time" dynamic simulations that will enable the dynamic stability margins, proactive real-time control, and improve grid resiliency to fast time-scale phenomena such as cascading network failures. Present-day dynamic simulations are performed only during offline planning studies, considering only worst case conditions such as summer peak, winter peak days, etc. With widespread deployment of renewable generation, controllable loads, energy storage devices and plug-in hybrid electric vehicles expected in the near future and greater integration of cyber infrastructure (communications, computation and control), monitoring and controlling the dynamic performance of the grid in real-time would become increasingly important. The state-of-the-art dynamic simulation tools have limited computational speed and are not suitable for real-time applications, given the large set of contingency conditions to be evaluated. These tools are optimized for best performance of single-processor computers, but the simulation is still several times slower than real-time due to its computational complexity. With recent significant advances in numerical methods and computational hardware, the expectations have been rising towards more efficient and faster techniques to be implemented in power system simulators. This is a natural expectation, given that the core solution algorithms of most commercial simulators were developed

  12. Rapid Small-Signal Stability Assessment and Enhancement Following Changes in Topology

    SciTech Connect (OSTI)

    Saric, AT; Stankovic, AM

    2015-05-01

    The paper proposes a scalable and tractable algorithm for dynamic topology optimization of power systems involving changes in branch on/off status, while respecting small-signal stability (SSS) constraints. A procedure for fast updates of the system matrices (in descriptor form) and without additional full matrix inversions is proposed. To additionally reduce the computation time, only critical eigenvalues (right-most or those in a specified damping ratio and frequency range) are calculated. A quadratic optimization approach is proposed for optimized generation re-dispatch to satisfy SSS constraints. The approach is applied to two (medium- and large-scale) real-world test power systems.

  13. Erosion Resistance Index (ERI) to Assess Surface Stability in Desert Environments

    SciTech Connect (OSTI)

    Hamada, Yuki; Grippo, Mark A.

    2015-11-01

    A new spectral index—erosion resistance index (ERI)—was developed to assess erosion risks in desert landscapes. The index was developed by applying trigonometry to the combination of the green/red band-ratio and the red/near infrared band-ratio from very high spatial resolution imagery. The resultant ERI maps showed spatially cohesive distributions of high and low index values across the study areas. High index values were observed over areas that were resistant to erosion (such as desert pavement and dense vegetation), while low index values overlapped with areas likely dominated by loose sandy soils, such as stream beds and access roads. Although further investigation is warranted, this new index, ERI, shows promise for the assessment of erosion risks in desert regions.

  14. Assessment of nuclear anxiety among American students: Stability over time, secular trends, and emotional correlates

    SciTech Connect (OSTI)

    Newcomb, M.D.

    1989-10-01

    Studies of reactions and attitudes toward nuclear war have progressed from the use of anecdotal evidence to multi-item psychological measures. Additional psychometric data and substantive results of the Nuclear Attitudes Questionnaire (NAQ; Newcomb, 1986) are reported here. Data from three independent samples of students from the United States collected in 1984, 1986, and 1987 were compared and contrasted. The 1986 data were obtained immediately following the Chernobyl nuclear power plant accident. Test-retest reliability of the NAQ items and subscales was quite high and comparable among samples and established the across-time stability of the measure. There were several secular trends across years on items and subscales, indicating some increased concern about nuclear power (particularly in 1986), but also a general increase in nuclear concerns, fears, and anxiety. Anticipated sex differences were found on many of the NAQ items and subscales. Correlations between the NAQ subscales and the nine SCL-90-R scales (Derogatis, 1977) were consistent for the 1986 and 1987 samples. In latent variable analyses, a general factor of Emotional Distress was significantly correlated with a general factor of Nuclear Anxiety, as well as specifically with nuclear concern and fear for the future.

  15. Resumption of thermal stabilization of plutonium oxide in Building 707, Rocky Flats Plant, Golden, Colorado. Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    The Department of Energy is proposing thermal stabilization to enhance the safe storage of plutonium at Rocky Flats Plant until decisions are made on long-term storage and disposition of the material. The proposed action is to resume thermal stabilization of pyrophoric plutonium in Building 707 at Rocky Flats Plant. Thermal stabilization would heat the pyrophoric plutonium under controlled conditions in a glovebox furnace to promote full oxidation and convert the material into stable plutonium oxide in the form of PuO{sub 2}. Other activities associated with thermal stabilization would include post-stabilization characterization of non-pyrophoric plutonium and on-site movement of pyrophoric and non-pyrophoric plutonium. This report covers; purpose and need; proposed action; alternatives to the proposed action; affected environment; environmental effects of proposed action and no action alternative; agencies and person consulted; and public participation.

  16. An Assessment of the Stability and the Potential for In-Situ Synthesis of Regulated Organic Compounds in High Level Radioactive Waste Stored at Hanford, Richland, Washington

    SciTech Connect (OSTI)

    Wiemers, K.D.; Babad, H.; Hallen, R.T.; Jackson, L.P.; Lerchen, M.E.

    1999-01-04

    The stability assessment examined 269 non-detected regulated compounds, first seeking literature references of the stability of the compounds, then evaluating each compound based upon the presence of functional groups using professional judgment. Compounds that could potentially survive for significant periods in the tanks (>1 year) were designated as stable. Most of the functional groups associated with the regulated organic compounds were considered unstable under tank waste conditions. The general exceptions with respect to functional group stability are some simple substituted aromatic and polycyclic aromatic compounds that resist oxidation and the multiple substituted aliphatic and aromatic halides that hydrolyze or dehydrohalogenate slowly under tank waste conditions. One-hundred and eighty-one (181) regulated, organic compounds were determined as likely unstable in the tank waste environment.

  17. Plutonium inventories for stabilization and stabilized materials

    SciTech Connect (OSTI)

    Williams, A.K.

    1996-05-01

    The objective of the breakout session was to identify characteristics of materials containing plutonium, the need to stabilize these materials for storage, and plans to accomplish the stabilization activities. All current stabilization activities are driven by the Defense Nuclear Facilities Safety Board Recommendation 94-1 (May 26, 1994) and by the recently completed Plutonium ES&H Vulnerability Assessment (DOE-EH-0415). The Implementation Plan for accomplishing stabilization of plutonium-bearing residues in response to the Recommendation and the Assessment was published by DOE on February 28, 1995. This Implementation Plan (IP) commits to stabilizing problem materials within 3 years, and stabilizing all other materials within 8 years. The IP identifies approximately 20 metric tons of plutonium requiring stabilization and/or repackaging. A further breakdown shows this material to consist of 8.5 metric tons of plutonium metal and alloys, 5.5 metric tons of plutonium as oxide, and 6 metric tons of plutonium as residues. Stabilization of the metal and oxide categories containing greater than 50 weight percent plutonium is covered by DOE Standard {open_quotes}Criteria for Safe Storage of Plutonium Metals and Oxides{close_quotes} December, 1994 (DOE-STD-3013-94). This standard establishes criteria for safe storage of stabilized plutonium metals and oxides for up to 50 years. Each of the DOE sites and contractors with large plutonium inventories has either started or is preparing to start stabilization activities to meet these criteria.

  18. Assessment of substrate-stabilizing factors for DnaK on the folding of aggregation-prone proteins

    SciTech Connect (OSTI)

    Ryu, Kisun; Kim, Chul Woo; Kim, Byung Hee [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Han, Kyoung Sim [Protheon Incorporated, Yonsei Engineering Research Center B120E, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Kim, Kyun-Hwan [Department of Pharmacology, School of Medicine, and Center for Diagnostic Medicine, Institute of Biomedical Science and Technology, Konkuk University, Seoul 143-701 (Korea, Republic of); Choi, Seong Il [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Institute of Life Science and Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of)], E-mail: seongilchoi@daum.net; Seong, Baik L. [Department of Biotechnology, College of Engineering, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Protheon Incorporated, Yonsei Engineering Research Center B120E, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of); Institute of Life Science and Biotechnology, Yonsei University, 134 Shinchon-Dong, Seodaemun-Gu, Seoul 120-749 (Korea, Republic of)], E-mail: blseong@yonsei.ac.kr

    2008-08-15

    Hydrophobic interactions between molecular chaperones and their nonnative substrates have been believed to be mainly responsible for both substrate recognition and stabilization against aggregation. However, the hydrophobic contact area between DnaK and its substrate proteins is very limited and other factors of DnaK for the substrate stabilization could not be excluded. Here, we covalently fused DnaK to the N-termini of aggregation-prone proteins in vivo. In the context of a fusion protein, DnaK has the ability to efficiently solubilize its linked proteins. The point mutation of the residue of DnaK critical for the substrate recognition and the deletion of the C-terminal substrate-binding domain did not have significant effect on the solubilizing ability of DnaK. The results imply that other factors of DnaK, distinct from the hydrophobic shielding of folding intermediates, also contributes to stabilization of its noncovalently bound substrates against aggregation. Elucidation of the nature of these factors would further enhance our understanding of the substrate stabilization of DnaK for expedited protein folding.

  19. Synchrophasor Measurement-Based Wind Plant Inertia Estimation: Preprint

    SciTech Connect (OSTI)

    Zhang, Y.; Bank, J.; Wan, Y. H.; Muljadi, E.; Corbus, D.

    2013-05-01

    The total inertia stored in all rotating masses that are connected to power systems, such as synchronous generations and induction motors, is an essential force that keeps the system stable after disturbances. To ensure bulk power system stability, there is a need to estimate the equivalent inertia available from a renewable generation plant. An equivalent inertia constant analogous to that of conventional rotating machines can be used to provide a readily understandable metric. This paper explores a method that utilizes synchrophasor measurements to estimate the equivalent inertia that a wind plant provides to the system.

  20. Response to comments received from the State of Colorado and the public on the Environmental Assessment for resumption of thermal stabilization of plutonium oxide in Building 707

    SciTech Connect (OSTI)

    Not Available

    1994-02-01

    The Department of Energy (DOE) prepared this document to respond to comments from the State of Colorado and the public on the draft Environmental Assessment (EA) for the Resumption of Thermal Stabilization of Plutonium Oxide in Building 707 at the Rocky Flats Plant (RFP) in Golden, Colorado. The draft EA was provided to the State of Colorado and the public on September 8, 1993, for a comment period of 60 days. The Department`s National Environmental Policy Act (NEPA) Implementing Procedures (10 Code of Federal Regulations [CFR] 1021.301) requires that prior to approval of the EA, DOE is to allow the host State and Indian Tribe a period of from 14 to 30 days to review and comment on the EA. The Department established a comment period of 60 days for this EA in response to requests by the public during the first public meeting on July 7, 1993, before preparation of the EA. Other issues raised at the July 7 meeting included the range of alternatives to be considered, the time period for preparation of the EA, and the amount of material to be thermally stabilized. These and other comments made by the public at that meeting were carefully considered in preparation of the EA. In addition to providing the preapproval draft EA to the State of Colorado, DOE distributed the EA to all persons and groups on the RFP public information mailing list and placed the EA and reference documents in the DOE Public Reading Rooms in the RFP area. A public meeting was held on October 6, 1993, to hear public comments on the draft EA. All comments on the draft EA, those received both at the October 6 public meeting and through correspondence, have been reproduced in their entirety in this Response to Comments document. Responses to the commenters` questions and concerns are provided, and changes made to the body of the EA are indicated in the responses. All comments received have been considered in the revision of the EA.

  1. Membrane stabilizer

    DOE Patents [OSTI]

    Mingenbach, William A.

    1988-01-01

    A device is provided for stabilizing a flexible membrane secured within a frame, wherein a plurality of elongated arms are disposed radially from a central hub which penetrates the membrane, said arms imposing alternately against opposite sides of the membrane, thus warping and tensioning the membrane into a condition of improved stability. The membrane may be an opaque or translucent sheet or other material.

  2. Membrane stabilizer

    DOE Patents [OSTI]

    Mingenbach, W.A.

    1988-02-09

    A device is provided for stabilizing a flexible membrane secured within a frame, wherein a plurality of elongated arms are disposed radially from a central hub which penetrates the membrane, said arms imposing alternately against opposite sides of the membrane, thus warping and tensioning the membrane into a condition of improved stability. The membrane may be an opaque or translucent sheet or other material. 10 figs.

  3. Assessment

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

    Assessment of the Surveillance Program of the High-Level Waste Storage Tanks at Hanford :.~I LALI i~E REJ 163 ROOM 1t 4 F77L.~ ~ -_77 .:earmn OfEeg Asitn Sertr fo niomn 4 z. r _________ rment of the Surveilance Prograrn of the High-Level Storage- Tanks at Hanford P. E WOOD Robert J. Catln, Deputy Directat - Office of Environmental Compliance and Overview Office of Environment MARCH 1980 Report to the U.S. Departrent of Energy Assistant Secretary for Environment Washkngon, DC C March 27, 1980

  4. Local invariants of stabilizer codes

    SciTech Connect (OSTI)

    Nest, Maarten van den; Dehaene, Jeroen; Moor, Bart de

    2004-09-01

    In Phys. Rev. A 58, 1833 (1998), Grassl et al. presented a family of polynomial invariants which separate the orbits of multiqubit density operators {rho} under the action of the local unitary group. We consider this family of invariants for the class of those {rho} that are the projection operators describing stabilizer codes and give a complete translation of these invariants into the binary framework in which stabilizer codes are usually described. Such an investigation of local invariants of quantum codes is of natural importance in quantum coding theory, since locally equivalent codes have the same error-correcting capabilities and local invariants are powerful tools to explore their structure. Moreover, the present result is relevant in the context of multipartite entanglement and the development of the measurement-based model of quantum computation known as the one-way quantum computer.

  5. TECHNOLOGY IN AN INTEGRATED ASSESSMENT MODEL: THE POTENTIAL REGIONAL DEPLOYMENT OF CARBON CAPTURE AND STORAGE IN THE CONTEXT OF GLOBAL CO2 STABILIZATION

    SciTech Connect (OSTI)

    Edmonds, James A.; Dooley, James J.; Kim, Son H.; Friedman, S. Julio; Wise, Marshall A.

    2007-11-19

    Technology is a critically important determinant of the cost of meeting any environmental objective. In this paper we examine the role of a particular technology, carbon dioxide capture and storage (CCS), in the stabilization of the concentration of atmospheric carbon dioxide (CO2). While CCS is not presently deployed at scale, it has the potential to deploy extensively during the course of the 21st century if concentrations of atmospheric CO2 are to be stabilized. The existing research literature has focused largely on the cost of capturing CO2, with the implicit assumption that storage options would be relatively cheap, plentiful and located in close proximity to future CO2 point sources. However, CO2 capture and storage will take place at the local and regional scale and will compete with other mitigation options that also exhibit local or regional differences. This paper provides an initial examination of the implications of regionally disaggregated demand for and supply of CO2 storage reservoirs within the context of a globally disaggregated, long-term analysis of both the geology and economics of CCS. This analysis suggests that some regions will see their ability to deploy CCS systems constrained by a lack of quality target reservoirs relative to the demand for storage placed upon these candidate geologic storage reservoirs by large stationary CO2 point sources within the region. Other regions appear to have sufficient storage capacity to easily carry them into the 22nd century. We examined the regional and global economic implications of the distribution of these sources and sinks in meeting various potential limits to atmospheric CO2 concentrations. This analysis confirms that CCS is an important potential response to climate change throughout the 21st century and a technology that can play a key role in controlling the cost of addressing climate change.

  6. STABILIZED OSCILLATOR

    DOE Patents [OSTI]

    Jessen, P.L.; Price, H.J.

    1958-03-18

    This patent relates to sine-wave generators and in particular describes a generator with a novel feedback circuit resulting in improved frequency stability. The generator comprises two triodes having a common cathode circuit connected to oscillate at a frequency and amplitude at which the loop galn of the circutt ls unity, and another pair of triodes having a common cathode circuit arranged as a conventional amplifier. A signal is conducted from the osciliator through a frequency selective network to the amplifier and fed back to the osciliator. The unique feature of the feedback circuit is the amplifier operates in the nonlinear portion of its tube characteristics thereby providing a relatively constant feedback voltage to the oscillator irrespective of the amplitude of its input signal.

  7. Composite stabilizer unit

    DOE Patents [OSTI]

    Ebaugh, Larry R.; Sadler, Collin P.; Carter, Gary D.

    1992-01-01

    An improved fin stabilized projectile including multiple stabilizer fins upon a stabilizer unit situated at the aft end of the projectile is provided, the improvement wherein the stabilizer fins are joined into the stabillizer unit by an injection molded engineering grade polymer.

  8. Enterprise Assessments Review of Mine Safety, Stabilization,...

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

    ... Carlsbad Field Office OFI-CBFO-1: Consider adding NFPA 122, Standard for Fire Prevention ... of MSHA inspections at WIPP and monitor trends for continued safety and health ...

  9. U31: Vehicle Stability and Dynamics: Electronic Stability Control

    SciTech Connect (OSTI)

    Petrolino, Joseph; Spezia, Tony; Arant, Michael; Delorenzis, Damon; LaClair, Tim J; Lim, Alvin; Pape, Doug

    2011-01-01

    A team led by NTRCI is working to improve the roll and yaw stability of heavy duty combination trucks through developing stability algorithms, assembling demonstration hardware, and investigating robust wireless communication. Modern electronic stability control (ESC) products automatically slow a vehicle rounding a corner too quickly or apply individual brakes when necessary to improve the steering characteristics of a vehicle. Air brake systems in North America provide no electronic communication between a tractor and semitrailer, limiting the degree to which control systems can be optimized. Prior research has demonstrated stability improvements where dynamic measurements and control commands are communicated between units of a vehicle. Three related activities were undertaken: (1) Develop an algorithm for the optimum yaw and roll control of a combination vehicle. Vehicle state parameters needed to control the vehicle and the proper brake response were determined. An integrated stability control for the tractor and semitrailer requires communication between the two units. Dynamic models were used to assess the algorithm. (2) Implement the ESC algorithm in the laboratory. Hardware components suitable for the harsh environment for measurement, sensor-to-controller communication, and semitrailer-to-tractor communication and brake actuation were specified and assembled as a working system. The goal was to collect the needed vehicle state information, transmit the information to the ESC system, and then actuate the brakes in response to controller commands. (3) Develop a wireless network with the data rate and reliability necessary to communicate dynamic signals for a vehicle stability control system. Adaptive connectivity-aware, multi-hop routing was selected because it can perform in the harsh environment where packet collisions and fading often will exist. The protocol is to give high priority to urgent messages.

  10. RCRA facility stabilization initiative

    SciTech Connect (OSTI)

    Not Available

    1995-02-01

    The RCRA Facility Stabilization Initiative was developed as a means of implementing the Corrective Action Program`s management goals recommended by the RIS for stabilizing actual or imminent releases from solid waste management units that threaten human health and the environment. The overall goal of stabilization is to, as situations warrant, control or abate threats to human health and/or the environment from releases at RCRA facilities, and/or to prevent or minimize the further spread of contamination while long-term remedies are pursued. The Stabilization initiative is a management philosophy and should not be confused with stabilization technologies.

  11. LED Color Stability

    SciTech Connect (OSTI)

    2014-03-01

    DOE Solid-State Lighting program technology fact sheet that addresses key questions about color stability and color shift in LED lighting applications.

  12. Stabilized radio frequency quadrupole

    DOE Patents [OSTI]

    Lancaster, H.D.; Fugitt, J.A.; Howard, D.R.

    1984-12-25

    Disclosed is a long-vane stabilized radio frequency resonator for accelerating charged particles and including means defining a radio frequency resonator cavity, a plurality of long vanes mounted in the defining means for dividing the cavity into sections, and means interconnecting opposing ones of the plurality of vanes for stabilizing the resonator. 5 figs.

  13. Stabilized radio frequency quadrupole

    DOE Patents [OSTI]

    Lancaster, Henry D.; Fugitt, Jock A.; Howard, Donald R.

    1984-01-01

    A long-vane stabilized radio frequency resonator for accelerating charged particles and including means defining a radio frequency resonator cavity, a plurality of long vanes mounted in the defining means for dividing the cavity into sections, and means interconnecting opposing ones of the plurality of vanes for stabilizing the resonator.

  14. Statistical circuit simulation with measurement-based active device models: Implications for process control and IC manufacturability

    SciTech Connect (OSTI)

    Root, D.E.; McGinty, D.; Hughes, B.

    1995-12-31

    This paper presents a new approach to statistical active circuit design which unifies device parametric-based process control and non-parametric circuit simulation. Predictions of circuit sensitivity to process variation and yield-loss of circuits fabricated in two different GaAs IC processes are described. The simulations make use of measurement-based active device models which are not formulated in terms of conventional parametric statistical variables. The technique is implemented in commercially available simulation software (HP MDS).

  15. Surface controlled blade stabilizer

    DOE Patents [OSTI]

    Russell, Larry R.

    1983-01-01

    Drill string stabilizer apparatus, controllable to expand and retract entirely from the surface by control of drill string pressure, wherein increase of drill string pressure from the surface closes a valve to create a piston means which is moved down by drill string pressure to expand the stabilizer blades, said valve being opened and the piston moving upward upon reduction of drill string pressure to retract the stabilizer blades. Upward and downward movements of the piston and an actuator sleeve therebelow are controlled by a barrel cam acting between the housing and the actuator sleeve.

  16. METHOD FOR STABILIZING KLYSTRONS

    DOE Patents [OSTI]

    Magnuson, D.W.; Smith, D.F.

    1959-04-14

    High-frequency oscillators for the generation of microwaves, particularly a system for stabilizing frequency-modulated klystron oscillators of the reflex type, are described. The system takos advantage of the fact that a change in oscillator frequency will alter the normal phase displacement between the cavity and its modulator, creating an error voltage which is utilized to regulate the frequency of the oscillator and stabilize it.

  17. Stability of dendritic arrays

    SciTech Connect (OSTI)

    Warren, J.A. ); Langer, J.S. )

    1990-09-15

    We propose an approximate method for studying steady-state properties and linear stability of the dendritic arrays that are formed in directional solidification of alloys. Our analysis is valid at high growth rates where the primary spacing between dendrites is larger than the velocity-dependent solutal diffusion length. We compute a neutral stability boundary and find that, in the situations where we expect our results to be valid, the experimental data of Somboonsuk, Mason, and Trivedi (Metall. Trans. A 15A, 967 (1984)) lie in the stable region, well away from the boundary.

  18. Stabilized PV system

    DOE Patents [OSTI]

    Dinwoodie, Thomas L.

    2002-12-17

    A stabilized PV system comprises an array of photovoltaic (PV) assemblies mounted to a support surface. Each PV assembly comprises a PV module and a support assembly securing the PV module to a position overlying the support surface. The array of modules is circumscribed by a continuous, belt-like perimeter assembly. Cross strapping, extending above, below or through the array, or some combination of above, below and through the array, secures a first position along the perimeter assembly to at least a second position along the perimeter assembly thereby stabilizing the array against wind uplift forces. The first and second positions may be on opposite sides on the array.

  19. Nanostructures for enzyme stabilization

    SciTech Connect (OSTI)

    Kim, Jungbae; Grate, Jay W.; Wang, Ping

    2006-02-02

    The last decade has witnessed notable breakthroughs in nanotechnology with development of various nanostructured materials such as mesoporous materials and nanoparticles. These nanostructures have been used as a host for enzyme immobilization via various approaches, such as enzyme adsorption, covalent attachment, enzyme encapsulation, and sophisticated combinations of methods. This review discusses the stabilization mechanisms behind these diverse approaches; such as confinement, pore size and volume, charge interaction, hydrophobic interaction, and multipoint attachment. In addition, we will introduce recent rigorous approaches to improve the enzyme stability in these nanostructures or develop new nanostructures for the enzyme stabilization. Especially, we will introduce our recent invention of a nanostructure, called single enzyme nanoparticles (SENs). In the form of SENs, each enzyme molecule is surrounded with a nanometer scale network, resulting in stabilization of enzyme activity without any serious limitation for the substrate transfer from solution to the active site. SENs can be further immobilized into mesoporous silica with a large surface area, providing a hierarchical approach for stable, immobilized enzyme systems for various applications, such as bioconversion, bioremediation, and biosensors.

  20. STABILIZED PINCH MACHINE

    DOE Patents [OSTI]

    Anderson, O.A.

    1962-04-24

    A device for heating and confining a high temperature gas or plasma utilizing the linear pinch effect is described. The pinch discharge produced is the form of an elongated cylinder. The electrical discharge current is returned in parallel along an axial and a concentric conductor whereby the magnetic field of the conductors compresses and stabilizes the pinch discharge against lateral instability. (AEC)

  1. Stability of the aether

    SciTech Connect (OSTI)

    Donnelly, William; Jacobson, Ted

    2010-10-15

    The requirements for stability of a Lorentz violating theory are analyzed. In particular we conclude that Einstein-aether theory can be stable when its modes have any phase velocity, rather than only the speed of light as was argued in a recent paper.

  2. Stabilized chromium oxide film

    DOE Patents [OSTI]

    Nyaiesh, A.R.; Garwin, E.L.

    1986-08-04

    Stabilized air-oxidized chromium films deposited on high-power klystron ceramic windows and sleeves having a thickness between 20 and 150A are useful in lowering secondary electron emission yield and in avoiding multipactoring and window failure due to overheating. The ceramic substrate for the film is chosen from alumina, sapphire or beryllium oxide.

  3. Stabilized chromium oxide film

    DOE Patents [OSTI]

    Garwin, Edward L.; Nyaiesh, Ali R.

    1988-01-01

    Stabilized air-oxidized chromium films deposited on high-power klystron ceramic windows and sleeves having a thickness between 20 and 150.ANG. are useful in lowering secondary electron emission yield and in avoiding multipactoring and window failure due to overheating. The ceramic substrate for the film is chosen from alumina, sapphire or beryllium oxide.

  4. White Oak Dam stability analysis. Volume I

    SciTech Connect (OSTI)

    Ahmed, S.B.

    1994-01-01

    A parametric study was conducted to evaluate the stability of the White Oak Dam (WOD) embankment and foundation. Slope stability analyses were performed for the upper and lower bound soil properties at three sections of the dam using the PCSTABL4 computer program. Minimum safety factors were calculated for the applicable seismic and static loading conditions. Liquefaction potential of the dam embankment and foundation solid during the seismic event was assessed by using simplified procedures. The WOD is classified as a low hazard facility and the Evaluation Basis Earthquake (EBE) is defined as an earthquake with a magnitude of m{sub b} = 5.6 and a Peak Ground Accelerator (PGA) of 0.13 g. This event is approximately equivalent to a Modified Mercalli Intensity of VI-VIII. The EBE is used to perform the seismic evaluation for slope stability and liquefaction potential. Results of the stability analyses and the liquefaction assessment lead to the conclusion that the White Oak Dam is safe and stable for the static and the seismic events defined in this study. Ogden Environmental, at the request of MMES, has checked and verified the calculations for the critical loading conditions and performed a peer review of this report. Ogden has determined that the WOD is stable under the defined static and seismic loading conditions and the embankment materials are in general not susceptible to liquefaction.

  5. Surface-stabilized gold nanocatalysts

    DOE Patents [OSTI]

    Dai, Sheng [Knoxville, TN; Yan, Wenfu [Oak Ridge, TN

    2009-12-08

    A surface-stabilized gold nanocatalyst includes a solid support having stabilizing surfaces for supporting gold nanoparticles, and a plurality of gold nanoparticles having an average particle size of less than 8 nm disposed on the stabilizing surfaces. The surface-stabilized gold nanocatalyst provides enhanced stability, such as at high temperature under oxygen containing environments. In one embodiment, the solid support is a multi-layer support comprising at least a first layer having a second layer providing the stabilizing surfaces disposed thereon, the first and second layer being chemically distinct.

  6. Renewable source controls for grid stability.

    SciTech Connect (OSTI)

    Byrne, Raymond Harry; Elliott, Ryan Thomas; Neely, Jason C.; Silva Monroy, Cesar Augusto; Schoenwald, David Alan; Grant, Lisa

    2012-12-01

    The goal of this study was to evaluate the small signal and transient stability of the Western Electric- ity Coordinating Council (WECC) under high penetrations of renewable energy, and to identify control technologies that would improve the system performance. The WECC is the regional entity responsible for coordinating and promoting bulk electric system reliability in the Western Interconnection. Transient stability is the ability of the power system to maintain synchronism after a large disturbance while small signal stability is the ability of the power system to maintain synchronism after a small disturbance. Tran- sient stability analysis usually focuses on the relative rotor angle between synchronous machines compared to some stability margin. For this study we employed generator speed relative to system speed as a metric for assessing transient stability. In addition, we evaluated the system transient response using the system frequency nadir, which provides an assessment of the adequacy of the primary frequency control reserves. Small signal stability analysis typically identi es the eigenvalues or modes of the system in response to a disturbance. For this study we developed mode shape maps for the di erent scenarios. Prony analysis was applied to generator speed after a 1.4 GW, 0.5 second, brake insertion at various locations. Six di erent WECC base cases were analyzed, including the 2022 light spring case which meets the renewable portfolio standards. Because of the di culty in identifying the cause and e ect relationship in large power system models with di erent scenarios, several simulations were run on a 7-bus, 5-generator system to isolate the e ects of di erent con gurations. Based on the results of the study, for a large power system like the WECC, incorporating frequency droop into wind/solar systems provides a larger bene t to system transient response than replacing the lost inertia with synthetic inertia. From a small signal stability

  7. STABILIZED TRANSISTOR AMPLIFIER

    DOE Patents [OSTI]

    Noe, J.B.

    1963-05-01

    A temperature stabilized transistor amplifier having a pair of transistors coupled in cascade relation that are capable of providing amplification through a temperature range of - 100 un. Concent 85% F to 400 un. Concent 85% F described. The stabilization of the amplifier is attained by coupling a feedback signal taken from the emitter of second transistor at a junction between two serially arranged biasing resistances in the circuit of the emitter of the second transistor to the base of the first transistor. Thus, a change in the emitter current of the second transistor is automatically corrected by the feedback adjustment of the base-emitter potential of the first transistor and by a corresponding change in the base-emitter potential of the second transistor. (AEC)

  8. Rock slope stability

    SciTech Connect (OSTI)

    Kliche, C.A.

    1999-07-01

    Whether you're involved in surface mine design, surface mine production, construction, education, or regulation, this is an important new book for your library. It describes the basic rock slope failure modes and methods of analysis--both kinematic and kinetic techniques. Chapters include geotechnical and geomechanical analysis techniques, hydrology, rock slope stabilization techniques, and geotechnical instrumentation and monitoring. Numerous examples, drawings and photos enhance the text.

  9. Stabilized floating platforms

    DOE Patents [OSTI]

    Thomas, David G.

    1976-01-01

    The subject invention is directed to a floating platform for supporting nuclear reactors and the like at selected offshore sites. The platform is provided with a stabilizer mechanism which significantly reduces the effects of wave action upon the platform and which comprises a pair of relatively small floats attached by rigid booms to the platform at locations spaced therefrom for reducing wave pitch, acceleration, and the resonance period of the wave.

  10. Chassis stabilization system

    DOE Patents [OSTI]

    Claxton, Gerald L.

    1999-01-01

    A stabilizing suspension system is provided for vehicles carrying telescopic booms or aerial work platforms having a fixed axle and a oscillating axle. Hydraulic cylinders are connected to each end of the oscillating axle, each cylinder being capable of extending and retracting. An off level sensor senses the angle of tilt of the chassis in both left and right directions and, when a predetermined threshold of tilt has been detected, the hydraulic cylinder on the downhill side of the chassis is locked against retracting, but is free to move in the downhill direction to allow the downhill wheel to remain in contact with the ground.

  11. Stabilization of graphene nanopore

    SciTech Connect (OSTI)

    Lee, Jaekwang; Yang, Zhiqing; Zhou, Wu; Pennycook, Stephen J.; Pantelides, Sokrates T.; Chisholm, Matthew F.

    2014-05-27

    Graphene is an ultrathin, impervious membrane. The controlled introduction of nanoscale pores in graphene would lead to applications that involve water purification, chemical separation, and DNA sequencing. However, graphene nanopores are unstable against filling by carbon adatoms. Using aberration-corrected scanning transmission electron microscopy and density-functional calculations, we report that Si atoms stabilize graphene nanopores by bridging the dangling bonds around the perimeter of the hole. Si-passivated pores remain intact even under intense electron beam irradiation, and they were observed several months after the sample fabrication, demonstrating that these structures are intrinsically robust and stable against carbon filling. Theoretical calculations reveal the underlying mechanism for this stabilization effect: Si atoms bond strongly to the graphene edge, and their preference for tetrahedral coordination forces C adatoms to form dendrites sticking out of the graphene plane, instead of filling the nanopore. Our results provide a novel way to develop stable nanopores, which is a major step toward reliable graphene-based molecular translocation devices.

  12. System Design Description PFP Thermal Stabilization

    SciTech Connect (OSTI)

    RISENMAY, H.R.

    2000-04-25

    The purpose of this document is to provide a system design description (SDD) and design basis for the Plutonium Finishing Plant (PFP) Thermal Stabilization project. The chief objective of the SDD is to document the Structures, Systems, and Components (SSCs) that establish and maintain the facility Safety Envelope necessary for normal safe operation of the facility; as identified in the FSAR, the OSRs, and Safety Assessment Documents (SADs). This safety equipment documentation should satisfy guidelines for the SDD given in WHC-SD-CP-TI-18 1, Criteria for Identification and Control of Equipment Necessary for Preservation of the Safety Envelope and Safe Operation of PFP. The basis for operational, alarm response, maintenance, and surveillance procedures are also identified and justified in this document. This document and its appendices address the following elements of the PFP Thermal Stabilization project: Functional and design requirements; Design description; Safety Envelope Analysis; Safety Equipment Class; and Operational, maintenance and surveillance procedures.

  13. Laser controlled flame stabilization

    DOE Patents [OSTI]

    Early, James W.; Thomas, Matthew E.

    2001-01-01

    A method and apparatus is provided for initiating and stabilizing fuel combustion in applications such as gas turbine electrical power generating engines and jet turbine engines where it is desired to burn lean fuel/air mixtures which produce lower amounts of NO.sub.x. A laser induced spark is propagated at a distance from the fuel nozzle with the laser ignitor being remotely located from the high temperature environment of the combustion chamber. A laser initiating spark generated by focusing high peak power laser light to a sufficiently tight laser spot within the fuel to cause the ionization of air and fuel into a plasma is unobtrusive to the flow dynamics of the combustion chamber of a fuel injector, thereby facilitating whatever advantage can be taken of flow dynamics in the design of the fuel injector.

  14. STABILIZED FEEDBACK AMPLIFIER

    DOE Patents [OSTI]

    Fishbine, H.L.; Sewell, C. Jr.

    1957-08-01

    Negative feedback amplifiers, and particularly a negative feedback circuit which is economical on amode power consumption, are described. Basically, the disclosed circuit comprises two tetrode tubes where the output of the first tube is capacitamce coupled to the grid of the second tube, which in turn has its plate coupled to the cathode of the first tube to form a degenerative feedback circuit. Operating potential for screen of the second tube is supplied by connecting the cathode resistor of the first tube to the screen, while the screen is by-passed to the cathode of its tube for the amplified frequencies. Also, the amplifier incorporates a circuit to stabilize the transconductance of the tubes by making the grid potential of each tube interdependent on anode currents of both lubes by voltage divider circuitry.

  15. Fiscal Year 2012 Revegetation Assessment

    SciTech Connect (OSTI)

    Jenifer Nordstrom

    2012-11-01

    This report summarizes the Fiscal Year 2012 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to supplement documentation related to the Storm Water Pollution Prevention Plan for Construction Activities and to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: • Summary of each site • Assessment of vegetation status and site stabilization at each location • Actions and Resolutions for each site. Ten disturbed sites were evaluated for this assessment. Six have achieved final stabilization. The remaining four sites not meeting the criteria for final stabilization will be evaluated again in the next fiscal year.

  16. Fiscal Year 2013 Revegetation Assessment

    SciTech Connect (OSTI)

    Jenifer Nordstrom

    2013-11-01

    This report summarizes the Fiscal Year 2013 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to supplement documentation related to the Storm Water Pollution Prevention Plan for Construction Activities and to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: Summary of each site Assessment of vegetation status and site stabilization at each location Actions and Resolutions for each site. Six disturbed sites were evaluated for this assessment. One has achieved final stabilization. The remaining five sites not meeting the criteria for final stabilization will be evaluated again in the next fiscal year.

  17. Stabilized radio-frequency quadrupole

    DOE Patents [OSTI]

    Lancaster, H.D.; Fugitt, J.A.; Howard, D.R.

    1982-09-29

    A long-vane stabilized radio frequency resonator for accelerating charged particles and including means defining a radio frequency resonator cavity, a plurality of long vanes mounted in the defining means for dividing the cavity into sections, and means interconnecting opposing ones of the plurality of vanes for stabilizing the resonator.

  18. Molecular Structure and Stability of Dissolved Lithium Polysulfide Species

    SciTech Connect (OSTI)

    Vijayakumar, M.; Govind, Niranjan; Walter, Eric D.; Burton, Sarah D.; Shukla, Anil K.; Devaraj, Arun; Xiao, Jie; Liu, Jun; Wang, Chong M.; Karim, Ayman M.; Thevuthasan, Suntharampillai

    2014-01-01

    Ability to predict the solubility and stability of lithium polysulfide is vital in realizing longer lasting lithium-sulfur batteries. Herein we report a combined computational and experimental spectroscopic analysis to understand the dissolution mechanism of lithium polysulfide species in an aprotic solvent medium. Multinuclear NMR and sulfur K-edge X-ray absorption (XAS) analysis reveals that the lithium exchange between polysulfide species and solvent molecule constitutes the first step in the dissolution process. Lithium exchange leads to de-lithiated polysulfide ions which subsequently forms highly reactive free radicals through disproportion reaction. The energy required for the disproportion and possible dimer formation reactions of the polysulfide species are analyzed using density functional theory (DFT) calculations. We validate our calculations with variable temperature electron spin resonance (ESR) measurements. Based on these findings, we discuss approaches to optimize the electrolyte in order to control the polysulfide solubility. The energy required for the disproportion and possible dimer formation reactions of the polysulfide species are analyzed using density functional theory (DFT) calculations. We validate our calculations with variable temperature electron spin resonance (ESR) measurements. Based on these findings, we discuss approaches to optimize the electrolyte in order to control the polysulfide solubility.

  19. Phase stabilities at a glance: Stability diagrams of nickel dipnictides

    SciTech Connect (OSTI)

    Bachhuber, F.; Rothballer, J.; Weihrich, R.; Söhnel, T.

    2013-12-07

    In the course of the recent advances in chemical structure prediction, a straightforward type of diagram to evaluate phase stabilities is presented based on an expedient example. Crystal structures and energetic stabilities of dipnictides NiPn{sub 2} (Pn = N, P, As, Sb, Bi) are systematically investigated by first principles calculations within the framework of density functional theory using the generalized gradient approximation to treat exchange and correlation. These dipnictides show remarkable polymorphism that is not yet understood systematically and offers room for the discovery of new phases. Relationships between the concerned structures including the marcasite, the pyrite, the arsenopyrite/CoSb{sub 2}, and the NiAs{sub 2} types are highlighted by means of common structural fragments. Electronic stabilities of experimentally known and related AB{sub 2} structure types are presented graphically in so-called stability diagrams. Additionally, competing binary phases are taken into consideration in the diagrams to evaluate the stabilities of the title compounds with respect to decomposition. The main purpose of the stability diagrams is the introduction of an image that enables the estimation of phase stabilities at a single glance. Beyond that, some of the energetically favored structure types can be identified as potential new phases.

  20. Plutonium stabilization and packaging system

    SciTech Connect (OSTI)

    1996-05-01

    This document describes the functional design of the Plutonium Stabilization and Packaging System (Pu SPS). The objective of this system is to stabilize and package plutonium metals and oxides of greater than 50% wt, as well as other selected isotopes, in accordance with the requirements of the DOE standard for safe storage of these materials for 50 years. This system will support completion of stabilization and packaging campaigns of the inventory at a number of affected sites before the year 2002. The package will be standard for all sites and will provide a minimum of two uncontaminated, organics free confinement barriers for the packaged material.

  1. Improved Offshore Wind Resource Assessment in Global Climate Stabilization Scenarios

    SciTech Connect (OSTI)

    Arent, D.; Sullivan, P.; Heimiller, D.; Lopez, A.; Eurek, K.; Badger, J.; Jorgensen, H. E.; Kelly, M.; Clarke, L.; Luckow, P.

    2012-10-01

    This paper introduces a technique for digesting geospatial wind-speed data into areally defined -- country-level, in this case -- wind resource supply curves. We combined gridded wind-vector data for ocean areas with bathymetry maps, country exclusive economic zones, wind turbine power curves, and other datasets and relevant parameters to build supply curves that estimate a country's offshore wind resource defined by resource quality, depth, and distance-from-shore. We include a single set of supply curves -- for a particular assumption set -- and study some implications of including it in a global energy model. We also discuss the importance of downscaling gridded wind vector data to capturing the full resource potential, especially over land areas with complex terrain. This paper includes motivation and background for a statistical downscaling methodology to account for terrain effects with a low computational burden. Finally, we use this forum to sketch a framework for building synthetic electric networks to estimate transmission accessibility of renewable resource sites in remote areas.

  2. Environmental Assessment for U-233 Stabilization, and Building...

    Office of Environmental Management (EM)

    ... A NOx scrubber is planned to reduce the air emissions to as low as is practical below ... is converted from a dissolved liquid state to a dry powder and packaged into drums." ...

  3. Technology Transfer Webinar on November 12: High-Performance Hybrid Simulation/Measurement-Based Tools for Proactive Operator Decision-Support

    Broader source: Energy.gov [DOE]

    DOE/OE and EPRI will host a technology transfer webinar on Wednesday, November 12, 2014 from noon to 2 p.m. (ET). The purpose of this open webinar is to disseminate results and outcomes of the recently completed project “High-Performance Hybrid Simulation/Measurement-Based Tools for Proactive Operator Decision-Support,” which is one of the awarded projects of the DOE Advanced Modeling Grid Research Program.

  4. Stabilized polyacrylic saccharide protein conjugates

    DOE Patents [OSTI]

    Callstrom, Matthew R.; Bednarski, Mark D.; Gruber, Patrick R.

    1996-01-01

    This invention is directed to water soluble protein polymer conjugates which are stabile in hostile environments. The conjugate comprises a protein which is linked to an acrylic polymer at multiple points through saccharide linker groups.

  5. Amphiphiles for protein solubilization and stabilization (Patent...

    Office of Scientific and Technical Information (OSTI)

    Amphiphiles for protein solubilization and stabilization Citation Details In-Document Search Title: Amphiphiles for protein solubilization and stabilization The invention provides ...

  6. Assessment Program

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

    ... SCADA Assessments Since 1999, Sandia has conducted numerous assessments of operational systems in hydroelectric dams; water treatment systems; electric power transmission, ...

  7. Basis Document for Sludge Stabilization

    SciTech Connect (OSTI)

    WILKINS, N.E.

    2000-04-03

    Vault personnel have begun a program of radiographing plutonium metal cans. Metal that appears to be corroded will be processed through the furnaces in Glovebox HC-21C. The fire suppression system activation temperature will be deleted because it is not maintained by PFP Stabilization.

  8. Stability of Molten Core Materials

    SciTech Connect (OSTI)

    Layne Pincock; Wendell Hintze

    2013-01-01

    The purpose of this report is to document a literature and data search for data and information pertaining to the stability of nuclear reactor molten core materials. This includes data and analysis from TMI-2 fuel and INL’s LOFT (Loss of Fluid Test) reactor project and other sources.

  9. Potassium hydroxide clay stabilization process

    SciTech Connect (OSTI)

    Sydansk, R.

    1981-07-28

    An aqueous solution having potassium hydroxide dissolved therein is injected into a subterranean sandstone formation containing water-sensitive fine particles, including clays. Potassium hydroxide stabilizes the fine particles for a substantial period of time thereby substantially preventing formation permeability damage caused by encroachment of aqueous solutions having a distinct ionic makeup into the treated formation.

  10. Stability of charged thin shells

    SciTech Connect (OSTI)

    Eiroa, Ernesto F.; Simeone, Claudio

    2011-05-15

    In this article we study the mechanical stability of spherically symmetric thin shells with charge, in Einstein-Maxwell and Einstein-Born-Infeld theories. We analyze linearized perturbations preserving the symmetry, for shells around vacuum and shells surrounding noncharged black holes.

  11. Reactor surface contamination stabilization. Innovative technology summary report

    SciTech Connect (OSTI)

    1998-11-01

    Contaminated surfaces, such as the face of a nuclear reactor, need to be stabilized (fixed) to avoid airborne contamination during decontamination and decommissioning activities, and to prepare for interim safe storage. The traditional (baseline) method of fixing the contamination has been to spray a coating on the surfaces, but ensuring complete coverage over complex shapes, such as nozzles and hoses, is difficult. The Hanford Site C Reactor Technology Demonstration Group demonstrated innovative technologies to assess stabilization properties of various coatings and to achieve complete coverage of complex surfaces on the reactor face. This demonstration was conducted in two phases: the first phase consisted of a series of laboratory assessments of various stabilization coatings on metal coupons. For the second phase, coatings that passed the laboratory tests were applied to the front face of the C Reactor and evaluated. The baseline coating (Rust-Oleum No. 769) and one of the innovative technologies did not completely cover nozzle assemblies on the reactor face, the most critical of the second-phase evaluation criteria. However, one of the innovative coating systems, consisting of a base layer of foam covered by an outer layer of a polymeric film, was successful. The baseline technology would cost approximately 33% as much as the innovative technology cost of $64,000 to stabilize an entire reactor face (196 m{sup 2} or 2116 ft{sup 2}) with 2,004 nozzle assemblies, but the baseline system failed to provide complete surface coverage.

  12. Fiscal Year 2014 Revegetation Assessment

    SciTech Connect (OSTI)

    Nordstrom, Jenifer

    2015-03-01

    This report summarizes the Fiscal Year 2014 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to document revegetation efforts at Idaho National Laboratory to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: • Summary of each site • Assessment of vegetation status and site stabilization at each location • Actions and Resolutions for each site. Five disturbed sites were evaluated for this assessment. Four sites are recommended to be removed from the annual assessment, and one is recommended for continued evaluation. New sites are also identified for future monitoring as part of the annual assessment.

  13. Alfven Eigenmode Stability with Beams in ITER-like Plasma

    SciTech Connect (OSTI)

    N.N. Gorelenkov; H.L. Berk; R.V. Budny

    2004-07-16

    Toroidicity Alfven Eigenmodes (TAE) in ITER can be driven unstable by two groups of energetic particles, the 3.5 MeV {alpha}-particle fusion products and the tangentially injected 1MeV beam ions. Stability conditions are established using the perturbative NOVA/NOVA-K codes. A quasi-linear diffusion model is then used to assess the induced redistribution of energetic particles.

  14. Stabilization

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

    Physics Chris Hegna, Professor, Nuclear Engineering and Engineering Physics Carl Sovinec, ... 035003 (2010). 54 P. M. Bellan, Fundamentals of Plasma Physics, Cambridge ...

  15. Fiscal Year 2009 Revegetation Assessment

    SciTech Connect (OSTI)

    Michael Lewis

    2009-10-01

    This report summarizes the Fiscal Year 2009 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to supplement documentation related to the Storm Water Pollution Prevention Plan for Construction Activities and to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: • Summary of each site • Assessment of vegetation status and site stabilization at each location • Recommendation(s) for each site.

  16. Fiscal Year 2010 Revegetation Assessment

    SciTech Connect (OSTI)

    Jenifer Nordstrom; Mike Lewis

    2010-11-01

    This report summarizes the Fiscal Year 2010 Revegetation Assessment by Battelle Energy Alliance, LLC. This assessment was conducted to supplement documentation related to the Storm Water Pollution Prevention Plan for Construction Activities and to ensure that disturbed vegetation and soil at various locations are being restored. This report provides the following information for each site being monitored by the Idaho National Laboratory Environmental Support and Services: • Summary of each site • Assessment of vegetation status and site stabilization at each location • Recommendation(s) for each site.

  17. Environmental Assessment

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

    Environment, Safety and Health Assessments Environment, Safety and Health Assessments The Department of Energy's Office of Environment, Safety and Health Assessments, within the Office of Enterprise Assessments, is responsible for conducting assessments to provide information on programs and performance in protecting our workers, the public, and environment from hazards present at Department sites and operations. This information provides assurance to our stakeholders and identifies areas for

  18. Biological sludge stabilization reactor evaluations

    SciTech Connect (OSTI)

    Corbitt, R.A.; Bowen, P.T.; Smith, P.E.

    1998-07-01

    Anaerobic digestion was chosen as the means to stabilize primary and thickened waste activated sludge for a 0.88 m{sup 3}/s (20 mgd) advanced wastewater reclamation facility. Two stage digestion was proposed to produce Class B sludge. Reactor shape was an important variable in design of the first stage digestion. Evaluation of conventional and egg shaped anaerobic digesters was performed. Based on the economic and non-economic criteria analysis, egg shaped reactors were selected.

  19. Landfill stabilization focus area: Technology summary

    SciTech Connect (OSTI)

    1995-06-01

    Landfills within the DOE Complex as of 1990 are estimated to contain 3 million cubic meters of buried waste. The DOE facilities where the waste is predominantly located are at Hanford, the Savannah River Site (SRS), the Idaho National Engineering Laboratory (INEL), the Los Alamos National Laboratory (LANL), the Oak Ridge Reservation (ORR), the Nevada Test Site (NTS), and the Rocky Flats Plant (RFP). Landfills include buried waste, whether on pads or in trenches, sumps, ponds, pits, cribs, heaps and piles, auger holes, caissons, and sanitary landfills. Approximately half of all DOE buried waste was disposed of before 1970. Disposal regulations at that time permitted the commingling of various types of waste (i.e., transuranic, low-level radioactive, hazardous). As a result, much of the buried waste throughout the DOE Complex is presently believed to be contaminated with both hazardous and radioactive materials. DOE buried waste typically includes transuranic-contaminated radioactive waste (TRU), low-level radioactive waste (LLW), hazardous waste per 40 CFR 26 1, greater-than-class-C waste per CFR 61 55 (GTCC), mixed TRU waste, and mixed LLW. The mission of the Landfill Stabilization Focus Area is to develop, demonstrate, and deliver safer,more cost-effective and efficient technologies which satisfy DOE site needs for the remediation and management of landfills. The LSFA is structured into five technology areas to meet the landfill remediation and management needs across the DOE complex. These technology areas are: assessment, retrieval, treatment, containment, and stabilization. Technical tasks in each of these areas are reviewed.

  20. Coherency Does Not Equate to Stability

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

    to Stability As-grown nanotwin (NT) copper (A) SEM image. (B) An edge-on inverse ... M. Kumar, "Topological view of the thermal stability of nanotwinned copper", Appl. Phys. ...

  1. Amphiphiles for protein solubilization and stabilization (Patent...

    Office of Scientific and Technical Information (OSTI)

    The invention provides amphiphiles for manipulating membrane proteins. The amphiphiles can ... and stabilization of membrane proteins, including photosynthetic protein ...

  2. Stabilizing System Pressure | Department of Energy

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

    Stabilizing System Pressure Stabilizing System Pressure This tip sheet summarizes three methods used to stabilize compressed air system pressure: adequate primary and secondary storage, Pressure/Flow Controllers (P/FCs), and dedicated compressors. COMPRESSED AIR TIP SHEET #8 Stabilizing System Pressure (August 2004) (243.38 KB) More Documents & Publications Compressed Air Storage Strategies Compressed Air System Control Strategies Analyzing Your Compressed Air System

  3. A Stability of LCLS Linac Modulators

    SciTech Connect (OSTI)

    Decker, F.-J.; Krasnykh, A.; Morris, B.; Nguyen, M.; /SLAC

    2012-06-13

    Information concerning to a stability of LCLS RF linac modulators is allocated in this paper. In general a 'pulse-to-pulse' modulator stability (and RF phase as well) is acceptable for the LCLS commission and FEL programs. Further modulator stability improvements are possible and approaches are discussed based on our experimental results.

  4. Stabilizing oscillating universes against quantum decay

    SciTech Connect (OSTI)

    Mithani, Audrey T.; Vilenkin, Alexander

    2015-07-07

    We investigate the effect of vacuum corrections, due to the trace anomaly and Casimir effect, on the stability of an oscillating universe with respect to decay by tunneling to the singularity. We find that these corrections do not generally stabilize an oscillating universe. However, stability may be achieved for some specially fine-tuned non-vacuum states.

  5. ASSESSMENT REPORT

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

    Inspector General SUBJECT: INFORMATION: Assessment Report on "Audit Coverage of Cost Allowability for Babcock & Wilcox Technical Services Pantex LLC During Fiscal Year 2013 ...

  6. Soil Stabilization Methods with Potential for Application at the Nevada National Security Site: A Literature Review

    SciTech Connect (OSTI)

    Shillito, Rose; Fenstermaker, Lynn

    2014-01-01

    Nuclear testing at the Nevada National Security Site (NNSS) has resulted in large areas of surficial radionuclide-contaminated soils. Much of the radionuclide contamination is found at or near the soil surface, and due to the dry climate setting, and the long half-life of radioactive isotopes, soil erosion poses a long-term health risk at the NNSS. The objective of this literature review is to present a survey of current stabilization methods used for minimizing soil erosion, both by water and wind. The review focuses on in situ uses of fundamental chemical and physical mechanisms for soil stabilization. A basic overview of the physical and chemical properties of soil is also presented to provide a basis for assessing stabilization methods. Some criteria for stabilization evaluation are identified based on previous studies at the NNSS. Although no specific recommendations are presented as no stabilization method, alone or in combination, will be appropriate in all circumstances, discussions of past and current stabilization procedures and specific soil tests that may aid in current or future soil stabilization activities at the NNSS are presented. However, not all Soils Corrective Action Sites (CASs) or Corrective Action Units (CAUs) will require stabilization of surficial radionuclide-contaminated soils. Each Soils CAS or CAU should be evaluated for site-specific conditions to determine if soil stabilization is necessary or practical for a given specific site closure alternative. If stabilization is necessary, then a determination will be made as to which stabilization technique is the most appropriate for that specific site.

  7. Surface rheology and interface stability.

    SciTech Connect (OSTI)

    Yaklin, Melissa A.; Cote, Raymond O.; Moffat, Harry K.; Grillet, Anne Mary; Walker, Lynn; Koehler, Timothy P.; Reichert, Matthew D.; Castaneda, Jaime N.; Mondy, Lisa Ann; Brooks, Carlton, F.

    2010-11-01

    We have developed a mature laboratory at Sandia to measure interfacial rheology, using a combination of home-built, commercially available, and customized commercial tools. An Interfacial Shear Rheometer (KSV ISR-400) was modified and the software improved to increase sensitivity and reliability. Another shear rheometer, a TA Instruments AR-G2, was equipped with a du Nouey ring, bicone geometry, and a double wall ring. These interfacial attachments were compared to each other and to the ISR. The best results with the AR-G2 were obtained with the du Nouey ring. A Micro-Interfacial Rheometer (MIR) was developed in house to obtain the much higher sensitivity given by a smaller probe. However, it was found to be difficult to apply this technique for highly elastic surfaces. Interfaces also exhibit dilatational rheology when the interface changes area, such as occurs when bubbles grow or shrink. To measure this rheological response we developed a Surface Dilatational Rheometer (SDR), in which changes in surface tension with surface area are measured during the oscillation of the volume of a pendant drop or bubble. All instruments were tested with various surfactant solutions to determine the limitations of each. In addition, foaming capability and foam stability were tested and compared with the rheology data. It was found that there was no clear correlation of surface rheology with foaming/defoaming with different types of surfactants, but, within a family of surfactants, rheology could predict the foam stability. Diffusion of surfactants to the interface and the behavior of polyelectrolytes were two subjects studied with the new equipment. Finally, surface rheological terms were added to a finite element Navier-Stokes solver and preliminary testing of the code completed. Recommendations for improved implementation were given. When completed we plan to use the computations to better interpret the experimental data and account for the effects of the underlying bulk

  8. Consequence Assessment

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

    1997-08-21

    This volume focuses on the process of performing timely initial assessments necessary to support critical first decisions and the continuous process of refining those initial assessments as more information and resources become available. Canceled by DOE G 151.1-4.

  9. Technology Assessment

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

    - FOR OFFICIAL USE ONLY - DRAFT 1 Advanced Composites Materials and their Manufacture 1 Technology Assessment 2 Contents 3 1. Introduction to the Technology/System ................................................................................................ 2 4 2. Technology Potential and Assessment .................................................................................................. 4 5 2.1 The Potential for Advanced Composites for Clean Energy Application Areas

  10. Nonlinear stability of ideal fluid equilibria

    SciTech Connect (OSTI)

    Holm, D.D.

    1988-01-01

    The Lyapunov method for establishing stability is related to well- known energy principles for nondissipative dynamical systems. A development of the Lyapunov method for Hamiltonian systems due to Arnold establishes sufficient conditions for Lyapunov stability by using the energy plus other conserved quantities, together with second variations and convexity estimates. When treating the stability of ideal fluid dynamics within the Hamiltonian framework, a useful class of these conserved quantities consists of the Casimir functionals, which Poisson-commute with all functionals of the dynamical fluid variables. Such conserved quantities, when added to the energy, help to provide convexity estimates that bound the growth of perturbations. These convexity estimates, in turn, provide norms necessary for establishing Lyapunov stability under the nonlinear evolution. In contrast, the commonly used second variation or spectral stability arguments only prove linearized stability. As ideal fluid examples, in these lectures we discuss planar barotropic compressible fluid dynamics, the three-dimensional hydrostatic Boussinesq model, and a new set of shallow water equations with nonlinear dispersion due to Basdenkov, Morosov, and Pogutse(1985). Remarkably, all three of these samples have the same Hamiltonian structure and, thus, possess the same Casimir functionals upon which their stability analyses are based. We also treat stability of modified quasigeostrophic flow, a problem whose Hamiltonian structure and Casimirs closely resemble Arnold's original example. Finally, we discuss some aspects of conditional stability and the applicability of Arnold's development of the Lyapunov technique. 100 refs.

  11. Nonlinear symmetric stability of planetary atmospheres

    SciTech Connect (OSTI)

    Bowman, J.C.; Shepherd, T.G.

    1994-11-01

    The energy-Casimir method is applied to the problem of symmetric stability in the context of a compressible, hydrostatic planetary atmosphere with a general equation of state. Linear stability criteria for symmetric disturbances to a zonally symmetric baroclinic flow are obtained. In the special case of a perfect gas the results of Stevens (1983) are recovered. Nonlinear stability conditions are also obtained that, in addition to implying linear stability, provide an upper bound on a certain positive-definite measure of disturbance amplitude.

  12. Stabilization of polyaniline solutions through additives

    DOE Patents [OSTI]

    Wrobleski, Debra A. (Los Alamos, NM); Benicewicz, Brian C. (Los Alamos, NM)

    1996-01-01

    A stabilized non-conductive polyaniline solution comprising from about 1 to bout 10 percent by weight polyaniline or a polyaniline derivative, from about 90 to about 99 percent by weight N-methylpyrrolidone, and from about 0.5 percent by weight to about 15 percent by weight of a solution stabilizing additive selected from the group consisting of hindered amine light stabilizers, polymeric amines, and dialkylamines, percent by weight of additive based on the total weight of polyaniline or polyaniline derivative is provided together with a method for stabilizing a polyaniline solution.

  13. Stabilization of polyaniline solutions through additives

    DOE Patents [OSTI]

    Wrobleski, D.A.; Benicewicz, B.C.

    1996-12-10

    A stabilized non-conductive polyaniline solution comprising from about 1 to about 10 percent by weight polyaniline or a polyaniline derivative, from about 90 to about 99 percent by weight N-methylpyrrolidone, and from about 0.5 percent by weight to about 15 percent by weight of a solution stabilizing additive selected from the group consisting of hindered amine light stabilizers, polymeric amines, and dialkylamines, percent by weight of additive based on the total weight of polyaniline or polyaniline derivative is provided together with a method for stabilizing a polyaniline solution. 4 figs.

  14. Chemically stabilized ionomers containing inorganic fillers

    DOE Patents [OSTI]

    Roelofs, Mark Gerrit

    2013-12-31

    Ionomeric polymers that are chemically stabilized and contain inorganic fillers are prepared, and show reduced degradation. The ionomers care useful in membranes and electrochemical cells.

  15. Stability at low symmetric force levels

    SciTech Connect (OSTI)

    Canavan, G.H.

    1997-09-01

    At low force levels stability indices depend primarily on the number of vulnerable missiles and the number of weapons on them. The index reduces to a product of the number of vulnerable missiles and the differences between normalized second and first strikes by vulnerable weapons. As the number of weapons per vulnerable missile decreases, the index rapidly approaches stability. Further reductions in vulnerable and survivable missiles and weapons do not affect stability, although they do reduce first and second strikes. Modest weapon reconstitution degrades stability significantly.

  16. Structural and Evolutionary Analyses Show Unique Stabilization...

    Office of Scientific and Technical Information (OSTI)

    Title: Structural and Evolutionary Analyses Show Unique Stabilization Strategies in the Type IV Pili of Clostridium difficile Authors: Piepenbrink, Kurt H. ; Maldarelli, Grace A. ; ...

  17. DNA Sequence Determinants Controlling Affinity, Stability and...

    Office of Scientific and Technical Information (OSTI)

    the Nucleoid Protein Fis Citation Details In-Document Search Title: DNA Sequence Determinants Controlling Affinity, Stability and Shape of DNA Complexes Bound by the Nucleoid ...

  18. Quench propagation velocity for highly stabilized conductors

    SciTech Connect (OSTI)

    Mints, R.G. |; Ogitsu, T. |; Devred, A.

    1995-05-01

    Quench propagation velocity in conductors having a large amount of stabilizer outside the multifilamentary area is considered. It is shown that the current redistribution process between the multifilamentary area and the stabilizer can strongly effect the quench propagation. A criterion is derived determining the conditions under which the current redistribution process becomes significant, and a model of effective stabilizer area is suggested to describe its influence on the quench propagation velocity. As an illustration, the model is applied to calculate the adiabatic quench propagation velocity for a conductor geometry with a multifilamentary area embedded inside the stabilizer.

  19. Efficient Synchronization Stability Metrics for Fault Clearing...

    Office of Scientific and Technical Information (OSTI)

    Title: Efficient Synchronization Stability Metrics for Fault Clearing Authors: Backhaus, Scott N. 1 ; Chertkov, Michael 1 ; Bent, Russell Whitford 1 ; Bienstock, Daniel 2...

  20. Rocky Flats ash test procedure (sludge stabilization)

    SciTech Connect (OSTI)

    Winstead, M.L.

    1995-09-14

    Rocky Flats Ash items have been identified as the next set of materials to be stabilized. This test is being run to determine charge sizes and soak times to completely stabilize the Rocky Flats Ash items. The information gathered will be used to generate the heating rampup cycle for stabilization. This test will also gain information on the effects of the glovebox atmosphere (moisture) on the stabilized material. This document provides instructions for testing Rocky Flats Ash in the HC-21C muffle furnace process.

  1. Predicting technology operational availability using technical maturity assessment

    SciTech Connect (OSTI)

    Kenley, C.R.; Creque, T.R.

    1998-07-01

    A technical maturity assessment method was performed by systems engineers in collaboration with an advisory panel composed of team members from different Department of Energy sites and from different engineering and science disciplines. Various stabilization technologies were assessed annually as to their relative maturity and availability for use in stabilizing nuclear materials. After three years of assessments, several of the technologies are now components of operational systems. A regression analysis of the historical assessments was performed, and it was concluded that the numerical technical maturity score produced by a team of experts can provide a powerful predictor of the time remaining until the operational application of technologies.

  2. Pipe crawler with stabilizing midsection

    DOE Patents [OSTI]

    Zollinger, William T.; Treanor, Richard C.

    1994-01-01

    A pipe crawler having a midsection that provides the stability and flexibty to allow the pipe crawler to negotiate curved and uneven segments of piping while traveling through piping systems. The pipe crawler comprises a front leg assembly, a rear leg assembly, a midsection with a gimbal at each end for connecting the midsection to the front and rear leg assemblies in a flexible manner, and an air cylinder for changing the distance between the front and rear leg assemblies. The pipe crawler moves in "inch worm" fashion with the front and rear leg assemblies alternating between an extended and a retracted position as the air cylinder moves the retracted leg assembly forward. The midsection has a plurality of legs extending radially for holding the midsection within a maximum displacement from the piping axis so that the gimbals are not pivoted to extreme angles where they might lock up or seize. When the midsection is displaced sufficiently, its legs with wheels on each end engage the interior surface of the piping and prevent further displacement. Using two gimbals divides the angle between the planes defined by the front and rear leg assemblies which also helps to prevent excessive gimbal pivoting.

  3. Pipe crawler with stabilizing midsection

    DOE Patents [OSTI]

    Zollinger, W.T.; Treanor, R.C.

    1994-12-27

    A pipe crawler is described having a midsection that provides the stability and flexibility to allow the pipe crawler to negotiate curved and uneven segments of piping while traveling through piping systems. The pipe crawler comprises a front leg assembly, a rear leg assembly, a midsection with a gimbal at each end for connecting the midsection to the front and rear leg assemblies in a flexible manner, and an air cylinder for changing the distance between the front and rear leg assemblies. The pipe crawler moves in ''inch worm'' fashion with the front and rear leg assemblies alternating between an extended and a retracted position as the air cylinder moves the retracted leg assembly forward. The midsection has a plurality of legs extending radially for holding the midsection within a maximum displacement from the piping axis so that the gimbals are not pivoted to extreme angles where they might lock up or seize. When the midsection is displaced sufficiently, its legs with wheels on each end engage the interior surface of the piping and prevent further displacement. Using two gimbals divides the angle between the planes defined by the front and rear leg assemblies which also helps to prevent excessive gimbal pivoting. 5 figures.

  4. Thermal Stability Of Formohydroxamic Acid

    SciTech Connect (OSTI)

    Fondeur, F. F.; Rudisill, T. S.

    2011-10-21

    The thermal stability of formohydroxamic acid (FHA) was evaluated to address the potential for exothermic decomposition during storage and its use in the uranium extraction process. Accelerating rate calorimetry showed rapid decomposition at a temperature above 65 {degree}?C; although, the rate of pressure rise was greater than two orders of magnitude less than the lower bound for materials which have no explosive properties with respect to transportation. FHA solutions in water and nitric acid did not reach runaway conditions until 150 {degree}?C. Analysis by differential scanning calorimetry showed that FHA melted at 67 {degree}?C and thermally decomposed at 90 {degree}?C with an enthalpy of -1924 J/g. The energics of the FHA thermal decomposition are comparable to those measured for aqueous solutions of hydroxylamine nitrate. Solid FHA should be stored in a location where the temperature does not exceed 20-25 {degree}?C. As a best practice, the solid material should be stored in a climate-controlled environment such as a refrigerator or freezer. FHA solutions in water are not susceptible to degradation by acid hydrolysis and are the preferred way to handle FHA prior to use.

  5. Risk Assessment

    Broader source: Energy.gov [DOE]

    A set of issues that state and local governments should carefully consider, with the goal of helping them assess and anticipate solutions for some worst case or unfortunate case scenarios as they...

  6. Process Design Concepts for Stabilization of High Level Waste Calcine

    SciTech Connect (OSTI)

    T. R. Thomas; A. K. Herbst

    2005-06-01

    The current baseline assumption is that packaging ¡§as is¡¨ and direct disposal of high level waste (HLW) calcine in a Monitored Geologic Repository will be allowed. The fall back position is to develop a stabilized waste form for the HLW calcine, that will meet repository waste acceptance criteria currently in place, in case regulatory initiatives are unsuccessful. A decision between direct disposal or a stabilization alternative is anticipated by June 2006. The purposes of this Engineering Design File (EDF) are to provide a pre-conceptual design on three low temperature processes under development for stabilization of high level waste calcine (i.e., the grout, hydroceramic grout, and iron phosphate ceramic processes) and to support a down selection among the three candidates. The key assumptions for the pre-conceptual design assessment are that a) a waste treatment plant would operate over eight years for 200 days a year, b) a design processing rate of 3.67 m3/day or 4670 kg/day of HLW calcine would be needed, and c) the performance of waste form would remove the HLW calcine from the hazardous waste category, and d) the waste form loadings would range from about 21-25 wt% calcine. The conclusions of this EDF study are that: (a) To date, the grout formulation appears to be the best candidate stabilizer among the three being tested for HLW calcine and appears to be the easiest to mix, pour, and cure. (b) Only minor differences would exist between the process steps of the grout and hydroceramic grout stabilization processes. If temperature control of the mixer at about 80„aC is required, it would add a major level of complexity to the iron phosphate stabilization process. (c) It is too early in the development program to determine which stabilizer will produce the minimum amount of stabilized waste form for the entire HLW inventory, but the volume is assumed to be within the range of 12,250 to 14,470 m3. (d) The stacked vessel height of the hot process vessels

  7. Environmental Assessment

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

    ASSESSMENT (EA) FOR THE RECONSTRUCTION OF THE SOUTH ACCESS ROAD (CR 802) IN SUPPORT OF THE DEPARTMENT OF ENERGY, WASTE ISOLATION PILOT PLANT (WIPP) IN EDDY COUNTY, NEW MEXICO NEPA #: DOI-BLM-NM-P020-2010-0011-EA PREPARED IN COOPERATION WITH: DEPARTMENT OF ENERGY CARLSBAD FIELD OFFICE P. O. BOX 2078 CARLSBAD, NM 88221-2078 PREPARED BY: OWEN W. LOFTON SUPERVISORY MULTI RESOURCES SPECIALIST BUREAU OF LAND MANAGEMENT CARLSBAD FIELD OFFICE 620 EAST GREENE CARLSBAD, NM 88220 ENVIRONMENTAL ASSESSMENT

  8. Environmental Assessment

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

    728D Environmental Assessment Integrated Vegetation Management on the Hanford Site, Richland, Washington U.S. Department of Energy Richland Operations Office Richland, Washington 99352 Approved for Public Release; Further Disseminat ion Uillimited June 2011 DOE/EA-1728D June 2011 1 2 3 4 5 6 This page intentionally left blank. 7 8 U.S. Department of Energy DOE/EA-1728D Draft Environmental Assessment iii June 2011 CONTENTS 1 2 1.0 INTRODUCTION

  9. Thin film deposition behavior of lubricants as a function of temperature - Lubricant stability maps

    SciTech Connect (OSTI)

    Klaus, E.E.; Wang, J.C.; Duda, J.L. )

    1992-07-01

    The relative rates of evaporation and oxidative or thermal decomposition in lubricants are investigated experimentally at elevated temperatures. Thin films of lubricant are exposed to air at high temperatures, and attention is given to the amount of solid deposit rendered and the amount of evaporated material. The effects of volatility, oxidative stability, and thermal stability are assessed with the help of stability maps for liquid lubricants. The concept of fluid-stability maps based on deposit formation as a function of temperature is shown to be effective. At 200-425 C lubricant deposit formation in the presence of air is a function of lubricant volatility, oxidation rate, the rate of thermal degradation, and the effect of the bearing surface. Some materials are listed that can mitigate the effects of oxidation on lubricant performance which can be used for a range of aerospace applications. 16 refs.

  10. The effect of an anisotropic pressure of thermal particles on resistive wall mode stability

    SciTech Connect (OSTI)

    Berkery, J. W. Sabbagh, S. A.; Betti, R.; Guazzotto, L.; Manickam, J.

    2014-11-15

    The effect of an anisotropic pressure of thermal particles on resistive wall mode stability in tokamak fusion plasmas is derived through kinetic theory and assessed through calculation with the MISK code [B. Hu et al., Phys. Plasmas 12, 0?57301 (2005)]. The fluid anisotropy is treated as a small perturbation on the plasma equilibrium and modeled with a bi-Maxwellian distribution function. A complete stability treatment without an assumption of high frequency mode rotation leads to anisotropic kinetic terms in the dispersion relation in addition to anisotropy corrections to the fluid terms. With the density and the average pressure kept constant, when thermal particles have a higher temperature perpendicular to the magnetic field than parallel, the fluid pressure-driven ballooning destabilization term is reduced. Additionally, the stabilizing kinetic effects of the trapped thermal ions can be enhanced. Together these two effects can lead to a modest increase in resistive wall mode stability.

  11. Process for stabilization of coal liquid fractions

    DOE Patents [OSTI]

    Davies, Geoffrey; El-Toukhy, Ahmed

    1987-01-01

    Coal liquid fractions to be used as fuels are stabilized against gum formation and viscosity increases during storage, permitting the fuel to be burned as is, without further expensive treatments to remove gums or gum-forming materials. Stabilization is accomplished by addition of cyclohexanol or other simple inexpensive secondary and tertiary alcohols, secondary and tertiary amines, and ketones to such coal liquids at levels of 5-25% by weight with respect to the coal liquid being treated. Cyclohexanol is a particularly effective and cost-efficient stabilizer. Other stabilizers are isopropanol, diphenylmethanol, tertiary butanol, dipropylamine, triethylamine, diphenylamine, ethylmethylketone, cyclohexanone, methylphenylketone, and benzophenone. Experimental data indicate that stabilization is achieved by breaking hydrogen bonds between phenols in the coal liquid, thereby preventing or retarding oxidative coupling. In addition, it has been found that coal liquid fractions stabilized according to the invention can be mixed with petroleum-derived liquid fuels to produce mixtures in which gum deposition is prevented or reduced relative to similar mixtures not containing stabilizer.

  12. Enterprise Assessments Assessment of Construction Quality at...

    Energy Savers [EERE]

    Enterprise Assessments Assessment of Construction Quality at the Hanford Site Waste Treatment and Immobilization Plant - June 2016 June 2016 Assessment of Construction Quality at ...

  13. Enterprise Assessments Emergency Management Assessment of the...

    Office of Environmental Management (EM)

    Emergency Management Assessment of the Waste Isolation Pilot Plant - April 2016 Enterprise Assessments Emergency Management Assessment of the Waste Isolation Pilot Plant - April ...

  14. Flame stabilizer for stagnation flow reactor

    DOE Patents [OSTI]

    Hahn, David W.; Edwards, Christopher F.

    1999-01-01

    A method of stabilizing a strained flame in a stagnation flow reactor. By causing a highly strained flame to be divided into a large number of equal size segments it is possible to stablize a highly strained flame that is on the verge of extinction, thereby providing for higher film growth rates. The flame stabilizer is an annular ring mounted coaxially and coplanar with the substrate upon which the film is growing and having a number of vertical pillars mounted on the top surface, thereby increasing the number of azimuthal nodes into which the flame is divided and preserving an axisymmetric structure necessary for stability.

  15. Long life lithium batteries with stabilized electrodes

    DOE Patents [OSTI]

    Amine, Khalil; Liu, Jun; Vissers, Donald R.; Lu, Wenquan

    2009-03-24

    The present invention relates to non-aqueous electrolytes having electrode stabilizing additives, stabilized electrodes, and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. In some embodiments the additives include a substituted or unsubstituted cyclic or spirocyclic hydrocarbon containing at least one oxygen atom and at least one alkenyl or alkynyl group. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes or olivine or carbon-coated olivine electrodes, the new electrolytes provide batteries with improved calendar and cycle life.

  16. Stability analysis of zigzag boron nitride nanoribbons

    SciTech Connect (OSTI)

    Rai, Hari Mohan Late, Ravikiran; Saxena, Shailendra K.; Kumar, Rajesh; Sagdeo, Pankaj R.; Jaiswal, Neeraj K.; Srivastava, Pankaj

    2015-05-15

    We have explored the structural stability of bare and hydrogenated zigzag boron nitride nanoribbons (ZBNNRs). In order to investigate the structural stability, we calculate the cohesive energy for bare, one-edge and both edges H-terminated ZBNNRs with different widths. It is found that the ZBNNRs with width Nz=8 are energetically more favorable than the lower-width counterparts (Nz<8). Bare ZBNNRs have been found energetically most stable as compared to the edge terminated ribbons. Our analysis reveals that the structural stability is a function of ribbon-width and it is not affected significantly by the type of edge-passivation (one-edge or both-edges)

  17. Technology Assessment

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

    Roll to Roll (R2R) Processing 1 Technology Assessment 2 3 Contents 4 1. Introduction to the Technology/System ............................................................................................... 2 5 1.1. Introduction to R2R Processing..................................................................................................... 2 6 1.2. R2R Processing Mechanisms ......................................................................................................... 3 7 2.

  18. Phase Stability, Crystal Structure, and Thermoelectric Properties...

    Office of Scientific and Technical Information (OSTI)

    and Thermoelectric Properties of Cu12Sb4S13xSex Solid Solutions Citation Details In-Document Search Title: Phase Stability, Crystal Structure, and Thermoelectric Properties ...

  19. Theoretical investigation of thermodynamic stability and mobility...

    Office of Scientific and Technical Information (OSTI)

    The thermodynamic stability and the migration energy barriers of oxygen vacancies in ThO2 ... conditions, respectively, while its migration energy barrier is 1.97 eV. The addition ...

  20. Rocky Flats Ash test procedure (sludge stabilization)

    SciTech Connect (OSTI)

    Funston, G.A.

    1995-06-14

    Rocky Flats Ash items have been identified as the next set of materials to be stabilized. This test is being run to determine charge sizes and soak times to completely stabilize the Rocky Flats Ash items. The information gathered will be used to generate the heating rampup cycle for stabilization. The test will provide information to determine charge sizes, soak times and mesh screen sizes (if available at time of test) for stabilization of Rocky Flats Ash items to be processed in the HC-21C Muffle Furnace Process. Once the charge size and soak times have been established, a program for the temperature controller of the HC-21C Muffle Furnace process will be generated for processing Rocky Flats Ash.

  1. Engineering report (conceptual design) PFP solution stabilization

    SciTech Connect (OSTI)

    Witt, J.B.

    1997-07-17

    This Engineering Report (Conceptual Design) addresses remediation of the plutonium-bearing solutions currently in inventory at the Plutonium Finishing Plant (PFP). The recommendation from the Environmental Impact Statement (EIS) is that the solutions be treated thermally and stabilized as a solid for long term storage. For solutions which are not discardable, the baseline plan is to utilize a denitration process to stabilize the solutions prior to packaging for storage.

  2. Electrostatic wire stabilizing a charged particle beam

    DOE Patents [OSTI]

    Prono, D.S.; Caporaso, G.J.; Briggs, R.J.

    1983-03-21

    In combination with a charged particle beam generator and accelerator, apparatus and method are provided for stabilizing a beam of electrically charged particles. A guiding means, disposed within the particle beam, has an electric charge induced upon it by the charged particle beam. Because the sign of the electric charge on the guiding means and the sign of the particle beam are opposite, the particles are attracted toward and cluster around the guiding means to thereby stabilize the particle beam as it travels.

  3. Stabilized fuel with silica support structure

    SciTech Connect (OSTI)

    Poco, J.F.; Hrubesh, L.W.

    1991-12-31

    This report describes a stabilized fuel which is supported by a silica support structure. The silica support structure provides a low density, high porosity vehicle for safely carrying hydrocarbon fuels. The silica support structure for hydrocarbon fuel does not produce toxic material residues on combustion which would pose environmentally sensitive disposal problems. The silica stabilized fuel composition is useful as a low temperature, continuous burning fire starter for wood or charcoal.

  4. Stabilizing windings for tilting and shifting modes

    DOE Patents [OSTI]

    Jardin, Stephen C.; Christensen, Uffe R.

    1984-01-01

    This invention relates to passive conducting loops for stabilizing a plasma ring against unstable tilting and/or shifting modes. To this end, for example, plasma ring in a spheromak is stabilized by a set of four figure-8 shaped loops having one pair on one side of the plasma and one pair on the other side with each pair comprising two loops whose axes are transverse to each other.

  5. Integrating the stabilization of nuclear materials

    SciTech Connect (OSTI)

    Dalton, H.F.

    1996-05-01

    In response to Recommendation 94-1 of the Defense Nuclear Facilities Safety Board, the Department of Energy committed to stabilizing specific nuclear materials within 3 and 8 years. These efforts are underway. The Department has already repackaged the plutonium at Rocky Flats and metal turnings at Savannah River that had been in contact with plastic. As this effort proceeds, we begin to look at activities beyond stabilization and prepare for the final disposition of these materials. To describe the plutonium materials being stabilize, Figure 1 illustrates the quantities of plutonium in various forms that will be stabilized. Plutonium as metal comprises 8.5 metric tons. Plutonium oxide contains 5.5 metric tons of plutonium. Plutonium residues and solutions, together, contain 7 metric tons of plutonium. Figure 2 shows the quantity of plutonium-bearing material in these four categories. In this depiction, 200 metric tons of plutonium residues and 400 metric tons of solutions containing plutonium constitute most of the material in the stabilization program. So, it is not surprising that much of the work in stabilization is directed toward the residues and solutions, even though they contain less of the plutonium.

  6. Endogenous Assessment

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

    Endogenous Assessment of the Capacity Value of Solar PV in Generation Investment Planning Studies Francisco D. Munoz, Member, IEEE, and Andrew D. Mills Abstract-There exist several different reliability- and approximation-based methods to determine the contribution of solar resources towards resource adequacy. However, most of these approaches require knowing in advance the installed capacities of both conventional and solar generators. This is a complication since generator capacities are

  7. Investigation of long term reactive stability of ceria for use...

    Office of Scientific and Technical Information (OSTI)

    reactive stability of ceria for use in solar thermochemical cycles This content will ... reactive stability of ceria for use in solar thermochemical cycles Authors: Rhodes, ...

  8. Long life lithium batteries with stabilized electrodes (Patent...

    Office of Scientific and Technical Information (OSTI)

    The present invention relates to non-aqueous electrolytes having electrode stabilizing ... an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. ...

  9. Physicists ID Mechanism that Stabilizes Plasma in Tokamaks

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

    Physicists ID Mechanism that Stabilizes Plasma in Tokamaks Physicists ID Mechanism that Stabilizes Plasma in Tokamaks Calculations Run at NERSC Create 3D Simulations of Fusion ...

  10. MHK Technologies/Mobil Stabilized Energy Conversion Platform...

    Open Energy Info (EERE)

    Mobil Stabilized Energy Conversion Platform < MHK Technologies Jump to: navigation, search << Return to the MHK database homepage Mobil Stabilized Energy Conversion Platform.jpg...

  11. Long life lithium batteries with stabilized electrodes (Patent...

    Office of Scientific and Technical Information (OSTI)

    Data Explorer Search Results Long life lithium batteries with stabilized electrodes Title: Long life lithium batteries with stabilized electrodes The present invention relates to ...

  12. Magnetite solubility and phase stability in alkaline media at...

    Office of Scientific and Technical Information (OSTI)

    stability in alkaline media at elevated temperatures Citation Details In-Document Search Title: Magnetite solubility and phase stability in alkaline media at elevated ...

  13. Advanced Oxidation & Stabilization of PAN-Based Carbon Precursor...

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

    Vehicle Technologies Office Merit Review 2015: Advanced Oxidation & Stabilization of PAN-Based Carbon Precursor Fibers Advanced Oxidation & Stabilization of PAN-Based Carbon ...

  14. Renewable Energy Price-Stability Benefits in Utility Green Power...

    Office of Scientific and Technical Information (OSTI)

    Price-Stability Benefits in Utility Green Power Programs. 36 pp Citation Details In-Document Search Title: Renewable Energy Price-Stability Benefits in Utility Green Power ...

  15. ARM: RPH stabilized table control data (Dataset) | Data Explorer

    Office of Scientific and Technical Information (OSTI)

    RPH stabilized table control data Title: ARM: RPH stabilized table control data RPH ... Sponsoring Org: USDOE Office of Science (SC), Biological and Environmental Research (BER) ...

  16. Stabilizing Topological Phases in Graphene via Random Adsorption...

    Office of Scientific and Technical Information (OSTI)

    Stabilizing Topological Phases in Graphene via Random Adsorption Title: Stabilizing Topological Phases in Graphene via Random Adsorption Authors: Jiang, Hua ; Qiao, Zhenhua ; Liu, ...

  17. Stabilizing laser energy density on a target during pulsed laser...

    Office of Scientific and Technical Information (OSTI)

    Patent: Stabilizing laser energy density on a target during pulsed laser deposition of thin films Citation Details In-Document Search Title: Stabilizing laser energy density on a ...

  18. Final Report: Stability and Novel Properties of Magnetic Materials...

    Office of Scientific and Technical Information (OSTI)

    Final Report: Stability and Novel Properties of Magnetic Materials and Ferromagnet Insulator Interfaces Citation Details In-Document Search Title: Final Report: Stability and ...

  19. Chemical stabilization of Hanford tank residual waste (Journal...

    Office of Scientific and Technical Information (OSTI)

    Chemical stabilization of Hanford tank residual waste Citation Details In-Document Search Title: Chemical stabilization of Hanford tank residual waste Authors: Cantrell, Kirk J. ; ...

  20. Stability analysis of 5D gravitational solutions with N bulk...

    Office of Scientific and Technical Information (OSTI)

    Stability analysis of 5D gravitational solutions with N bulk scalar fields Prev Next Title: Stability analysis of 5D gravitational solutions with N bulk scalar fields ...

  1. Stability of edge states in strained graphene (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    Stability of edge states in strained graphene Title: Stability of edge states in strained graphene Authors: Ghaemi, Pouyan ; Gopalakrishnan, Sarang ; Ryu, Shinsei Publication Date: ...

  2. Stability analysis of chromo-natural inflation and possible evasion...

    Office of Scientific and Technical Information (OSTI)

    Stability analysis of chromo-natural inflation and possible evasion of Lyth's bound Prev Next Title: Stability analysis of chromo-natural inflation and possible evasion of ...

  3. Stabilization of the Vertical Mode in Tokamaks by Localized Nonaxisymm...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Stabilization of the Vertical Mode in Tokamaks by Localized Nonaxisymmetric Fields Citation Details In-Document Search Title: Stabilization of the Vertical Mode in ...

  4. ASSESSMENT REPORT

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

    Brookhaven Science Associates LLC During Fiscal Years 2012 and 2013 Under Department of Energy Contract No. DE-AC02-98CH10886 OAI-V-16-03 January 2016 U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Department of Energy Washington, DC 20585 January 19, 2016 MEMORANDUM FOR THE MANAGER, BROOKHAVEN SITE OFFICE FROM: Jack Rouch, Director Central Audits Division Office of Inspector General SUBJECT: INFORMATION: Assessment Report: "Audit Coverage of Cost

  5. ASSESSMENT REPORT

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

    the University of California During Fiscal Years 2013 and 2014 Under Department of Energy Contract No. DE-AC02-05CH11231 OAI-V-16-10 June 2016 U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Department of Energy Washington, DC 20585 June 28, 2016 MEMORANDUM FOR THE MANAGER, BERKELEY SITE OFFICE FROM: David Sedillo Deputy Assistant Inspector General for Audits and Inspections Office of Inspector General SUBJECT: INFORMATION: Assessment Report on "Audit

  6. An Assessment

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

    Assessment of Coupling Algorithms for Nuclear Reactor Core Physics Simulations $ Steven Hamilton a,∗ , Mark Berrill a , Kevin Clarno a , Roger Pawlowski b a Oak Ridge National Laboratory, 1 Bethel Valley Rd., Oak Ridge, TN 37831 U.S.A. b Sandia National Laboratories, MS 0316, P.O. Box 5800, Albuquerque, NM 87185 U.S.A. Abstract This paper evaluates the performance of multiphysics coupling algorithms on a light water nuclear reactor core simulation. The simulation couples the k-eigenvalue form

  7. ASSESSMENT REPORT

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

    UT-Battelle LLC During Fiscal Year 2014 Under Department of Energy Contract No. DE-AC05-00OR22725 OAI-V-16-11 July 2016 U.S. Department of Energy Office of Inspector General Office of Audits and Inspections Department of Energy Washington, DC 20585 July 29, 2016 MEMORANDUM FOR THE MANAGER, OAK RIDGE NATIONAL LABORATORY SITE OFFICE FROM: Debra K. Solmonson Deputy Assistant Inspector General for Audits and Inspections Office of Inspector General SUBJECT: INFORMATION: Assessment Report on the

  8. Stability Study of the RERTR Fuel Microstructure

    SciTech Connect (OSTI)

    Jian Gan; Dennis Keiser; Brandon Miller; Daniel Wachs

    2014-04-01

    The irradiation stability of the interaction phases at the interface of fuel and Al alloy matrix as well as the stability of the fission gas bubble superlattice is believed to be very important to the U-Mo fuel performance. In this paper the recent result from TEM characterization of Kr ion irradiated U-10Mo-5Zr alloy will be discussed. The focus will be on the phase stability of Mo2-Zr, a dominated second phase developed at the interface of U-10Mo and the Zr barrier in a monolithic fuel plate from fuel fabrication. The Kr ion irradiations were conducted at a temperature of 200 degrees C to an ion fluence of 2.0E+16 ions/cm2. To investigate the thermal stability of the fission gas bubble superlattice, a key microstructural feature in both irradiated dispersion U-7Mo fuel and monolithic U-10Mo fuel, a FIB-TEM sample of the irradiated U-10Mo fuel (3.53E+21 fission/cm3) was used for a TEM in-situ heating experiment. The preliminary result showed extraordinary thermal stability of the fission gas bubble superlattice. The implication of the TEM observation from these two experiments on the fuel microstructural evolution under irradiation will be discussed.

  9. Process for stabilizing the viscosity characteristics of coal derived materials and the stabilized materials obtained thereby

    DOE Patents [OSTI]

    Bronfenbrenner, James C.; Foster, Edward P.; Tewari, Krishna

    1985-01-01

    A process is disclosed for stabilizing the viscosity of coal derived materials such as an SRC product by adding up to 5.0% by weight of a light volatile phenolic viscosity repressor. The viscosity will remain stabilized for a period of time of up to 4 months.

  10. Stability of polarized states for diamond valleytronics

    SciTech Connect (OSTI)

    Hammersberg, J.; Majdi, S.; Kovi, K. K.; Suntornwipat, N.; Gabrysch, M.; Isberg, J.; Twitchen, D. J.

    2014-06-09

    The stability of valley polarized electron states is crucial for the development of valleytronics. A long relaxation time of the valley polarization is required to enable operations to be performed on the polarized states. Here, we investigate the stability of valley polarized states in diamond, expressed as relaxation time. We have found that the stability of the states can be extremely long when we consider the electron-phonon scattering processes allowed by symmetry considerations. We determine electron-phonon coupling constants by Time-of-Flight measurements and Monte Carlo simulations and use these data to map out the relaxation time temperature dependency. The relaxation time for diamond can be microseconds or longer below 100 K and 100 V/cm due to the strong covalent bond, which is highly encouraging for future use in valleytronic applications.

  11. Vertically stabilized elongated cross-section tokamak

    DOE Patents [OSTI]

    Sheffield, George V.

    1977-01-01

    This invention provides a vertically stabilized, non-circular (minor) cross-section, toroidal plasma column characterized by an external separatrix. To this end, a specific poloidal coil means is added outside a toroidal plasma column containing an endless plasma current in a tokamak to produce a rectangular cross-section plasma column along the equilibrium axis of the plasma column. By elongating the spacing between the poloidal coil means the plasma cross-section is vertically elongated, while maintaining vertical stability, efficiently to increase the poloidal flux in linear proportion to the plasma cross-section height to achieve a much greater plasma volume than could be achieved with the heretofore known round cross-section plasma columns. Also, vertical stability is enhanced over an elliptical cross-section plasma column, and poloidal magnetic divertors are achieved.

  12. Wind Power Plant Voltage Stability Evaluation: Preprint

    SciTech Connect (OSTI)

    Muljadi, E.; Zhang, Y. C.

    2014-09-01

    Voltage stability refers to the ability of a power system to maintain steady voltages at all buses in the system after being subjected to a disturbance from a given initial operating condition. Voltage stability depends on a power system's ability to maintain and/or restore equilibrium between load demand and supply. Instability that may result occurs in the form of a progressive fall or rise of voltages of some buses. Possible outcomes of voltage instability are the loss of load in an area or tripped transmission lines and other elements by their protective systems, which may lead to cascading outages. The loss of synchronism of some generators may result from these outages or from operating conditions that violate a synchronous generator's field current limit, or in the case of variable speed wind turbine generator, the current limits of power switches. This paper investigates the impact of wind power plants on power system voltage stability by using synchrophasor measurements.

  13. Crude oil and finished fuel storage stability: An annotated review

    SciTech Connect (OSTI)

    Whisman, M.L.; Anderson, R.P.; Woodward, P.W.; Giles, H.N.

    1991-01-01

    A state-of-the-art review and assessment of storage effects on crude oil and product quality was undertaken through a literature search by computer accessing several data base sources. Pertinent citations from that literature search are tabulated for the years 1980 to the present. This 1990 revision supplements earlier reviews by Brinkman and others which covered stability publications through 1979 and an update in 1983 by Goetzinger and others that covered the period 1952--1982. For purposes of organization, citations are listed in the current revision chronologically starting with the earliest 1980 publications. The citations have also been divided according to primary subject matter. Consequently 11 sections appear including: alternate fuels, gasoline, distillate fuel, jet fuel, residual fuel, crude oil, biodegradation, analyses, reaction mechanisms, containment, and handling and storage. Each section contains a brief narrative followed by all the citations for that category.

  14. Systematic Method to Improve Antibody Stability | Argonne National

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

    Laboratory Systematic Method to Improve Antibody Stability Technology available for licensing: A proprietary antibody engineering strategy to improve antibody stability. Fast and inexpensive method Can be used to generate multiple products from the same antibody by fine-tuning stability levels PDF icon antibody_stability

  15. Mercury stabilization in chemically bonded phosphate ceramics

    SciTech Connect (OSTI)

    Wagh, A. S.; Singh, D.; Jeong, S. Y.

    2000-04-04

    Mercury stabilization and solidification is a significant challenge for conventional stabilization technologies. This is because of the stringent regulatory limits on leaching of its stabilized products. In a conventional cement stabilization process, Hg is converted at high pH to its hydroxide, which is not a very insoluble compound; hence the preferred route for Hg sulfidation to convert it into insoluble cinnabar (HgS). Unfortunately, efficient formation of this compound is pH-dependent. At a high pH, one obtains a more soluble Hg sulfate, in a very low pH range, insufficient immobilization occurs because of the escape of hydrogen sulfide, while efficient formation of HgS occurs only in a moderately acidic region. Thus, the pH range of 4 to 8 is where stabilization with Chemically Bonded Phosphate Ceramics (CBPC) is carried out. This paper discusses the authors experience on bench-scale stabilization of various US Department of Energy (DOE) waste streams containing Hg in the CBPC process. This process was developed to treat DOE's mixed waste streams. It is a room-temperature-setting process based on an acid-base reaction between magnesium oxide and monopotassium phosphate solution that forms a dense ceramic within hours. For Hg stabilization, addition of a small amount (< 1 wt.%) of Na{sub 2}S or K{sub 2}S is sufficient in the binder composition. Here the Toxicity Characteristic Leaching Procedure (TCLP) results on CBPC waste forms of surrogate waste streams representing secondary Hg containing wastes such as combustion residues and Delphi DETOX{trademark} residues are presented. The results show that although the current limit on leaching of Hg is 0.2 mg/L, the results from the CBPC waste forms are at least one order lower than this stringent limit. Encouraged by these results on surrogate wastes, they treated actual low-level Hg-containing mixed waste from their facility at Idaho. TCLP results on this waste are presented here. The efficient stabilization in

  16. Kinetic Stability of the Field Reversed Configuration

    SciTech Connect (OSTI)

    E.V. Belova; R.C. Davidson; H. Ji; and M. Yamada

    2002-07-09

    New computational results are presented which advance the understanding of the stability properties of the Field-Reversed Configuration (FRC). The FRC is an innovative confinement approach that offers a unique fusion reactor potential because of its compact and simple geometry, translation properties, and high plasma beta. One of the most important issues is FRC stability with respect to low-n (toroidal mode number) MHD modes. There is a clear discrepancy between the predictions of standard MHD theory that many modes should be unstable on the MHD time scale, and the observed macroscopic resilience of FRCs in experiments.

  17. Aluminum-stabilized NB3SN superconductor

    DOE Patents [OSTI]

    Scanlan, Ronald M.

    1988-01-01

    An aluminum-stabilized Nb.sub.3 Sn superconductor and process for producing same, utilizing ultrapure aluminum. Ductile components are co-drawn with aluminum to produce a conductor suitable for winding magnets. After winding, the conductor is heated to convert it to the brittle Nb.sub.3 Sn superconductor phase, using a temperature high enough to perform the transformation but still below the melting point of the aluminum. This results in reaction of substantially all of the niobium, while providing stabilization and react-in-place features which are beneficial in the fabrication of magnets utilizing superconducting materials.

  18. On the crisis stability of a submarine deterrent

    SciTech Connect (OSTI)

    Canavan, G.H.

    1992-05-01

    Without defenses, stability indices fall monotonically as the number of submarine-launched ballistic missiles (SLBMs) is reduced. For few SLBMs, the favorable stability properties of the survivable SLBMs are masked by the unfavorable stability properties of the non-survivable land missiles. With ground-based interceptor (GBI) defenses, stability initially falls faster. The number of GBIs could be increased gradually to minimize their impact on stability.

  19. Enterprise Assessments Assessment of Construction Quality and...

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

    April 2016 Assessment of Construction Quality and the Fire Protection program at the ... (EA) conducted an assessment of construction quality and the fire protection ...

  20. Metallic nanoshells on porphyrin-stabilized emulsions

    DOE Patents [OSTI]

    Wang, Haorong; Song, Yujiang; Shelnutt, John A; Medforth, Craig J

    2013-10-29

    Metal nanostructures formed by photocatalytic interfacial synthesis using a porphyrin-stabilized emulsion template and the method for making the nanostructures. Catalyst-seeded emulsion droplets are employed as templates for hollow-nanoshell growth. The hollow metal nanospheres may be formed with or without inclusions of other materials.

  1. Amphiphiles for protein solubilization and stabilization

    SciTech Connect (OSTI)

    Gellman, Samuel Helmer; Chae, Pil Seok; Laible, Phillip D; Wander, Marc J

    2014-11-04

    The invention provides amphiphiles for manipulating membrane proteins. The amphiphiles can feature carbohydrate-derived hydrophilic groups and branchpoints in the hydrophilic moiety and/or in a lipophilic moiety. Such amphiphiles are useful as detergents for solubilization and stabilization of membrane proteins, including photosynthetic protein superassemblies obtained from bacterial membranes.

  2. Amphiphiles for protein solubilization and stabilization

    DOE Patents [OSTI]

    Gellman, Samuel Helmer; Chae, Pil Seok; Laible, Philip D.; Wander, Marc J.

    2012-09-11

    The invention provides amphiphiles for manipulating membrane proteins. The amphiphiles can feature carbohydrate-derived hydrophilic groups and branchpoints in the hydrophilic moiety and/or in a lipophilic moiety. Such amphiphiles are useful as detergents for solubilization and stabilization of membrane proteins, including photosynthetic protein superassemblies obtained from bacterial membranes.

  3. Long life lithium batteries with stabilized electrodes

    DOE Patents [OSTI]

    Amine, Khalil; Liu, Jun; Vissers, Donald R; Lu, Wenquan

    2015-04-21

    The present invention relates to non-aqueous electrolytes having electrode stabilizing additives, stabilized electrodes, and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, and an electrode stabilizing additive. In certain electrolytes, the alkali metal salt is a bis(chelato)borate and the additives include substituted or unsubstituted linear, branched or cyclic hydrocarbons comprising at least one oxygen atom and at least one aryl, alkenyl or alkynyl group. In other electrolytes, the additives include a substituted aryl compound or a substituted or unsubstituted heteroaryl compound wherein the additive comprises at least one oxygen atom. There are also provided methods of making the electrolytes and batteries employing the electrolytes. The invention also provides for electrode materials. Cathodes of the present invention may be further stabilized by surface coating the particles of the spinel or olivine with a material that can neutralize acid or otherwise lessen or prevent leaching of the manganese or iron ions. In some embodiments the coating is polymeric and in other embodiments the coating is a metal oxide such as ZrO.sub.2, TiO.sub.2, ZnO, WO.sub.3, Al.sub.2O.sub.3, MgO, SiO.sub.2, SnO.sub.2 AlPO.sub.4, Al(OH).sub.3, a mixture of any two or more thereof.

  4. Melt dumping in string stabilized ribbon growth

    DOE Patents [OSTI]

    Sachs, Emanuel M.

    1986-12-09

    A method and apparatus for stabilizing the edge positions of a ribbon drawn from a melt includes the use of wettable strings drawn in parallel up through the melt surface, the ribbon being grown between the strings. A furnace and various features of the crucible used therein permit continuous automatic growth of flat ribbons without close temperature control or the need for visual inspection.

  5. Ecological Risk Assessments

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

    Ecological Risk Assessments Ecological Risk Assessments Ecological risk assessment is the appraisal of potential adverse effects of exposure to contaminants on plants and animals....

  6. Human Reliability Assessment

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

    ... Signup SlideShare Human Reliability Assessment HomeStationary PowerNuclear EnergyNuclear Energy Safety TechnologiesRisk and Safety AssessmentHuman Reliability Assessment ...

  7. Microsoft Word - Floodplain Assessment for AES

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

    Floodplain Statement of Findings Department of Energy Loan Guarantee to AES Energy Storage, LLC Project Dyno Electric Grid Stability Advanced Battery Systems in Johnson City, NY AGENCY: U.S. Department of Energy, Loan Programs Office ACTION: NEPA Categorical Exclusion SUMMARY: In accordance with U.S. Department of Energy (DOE) regulations contained at 10 CFR 1022, Compliance with Floodplain and Wetlands Environmental Review Requirements, DOE has conducted a floodplain assessment that analyzed

  8. Theory and modelling of nanocarbon phase stability.

    SciTech Connect (OSTI)

    Barnard, A. S.

    2006-01-01

    The transformation of nanodiamonds into carbon-onions (and vice versa) has been observed experimentally and has been modeled computationally at various levels of sophistication. Also, several analytical theories have been derived to describe the size, temperature and pressure dependence of this phase transition. However, in most cases a pure carbon-onion or nanodiamond is not the final product. More often than not an intermediary is formed, known as a bucky-diamond, with a diamond-like core encased in an onion-like shell. This has prompted a number of studies investigating the relative stability of nanodiamonds, bucky-diamonds, carbon-onions and fullerenes, in various size regimes. Presented here is a review outlining results of numerous theoretical studies examining the phase diagrams and phase stability of carbon nanoparticles, to clarify the complicated relationship between fullerenic and diamond structures at the nanoscale.

  9. ULTRA-STABILIZED D. C. AMPLIFIER

    DOE Patents [OSTI]

    Hartwig, E.C.; Kuenning, R.W.; Acker, R.C.

    1959-02-17

    An improved circuit is described for stabilizing the drift and minimizing the noise and hum level of d-c amplifiers so that the output voltage will be zero when the input is zero. In its detailed aspects, the disclosed circuit incorporates a d-c amplifier having a signal input, a second input, and an output circuit coupled back to the first input of the amplifier through inverse feedback means. An electronically driven chopper having a pair of fixed contacts and a moveable contact alternately connects the two inputs of a difference amplifier to the signal input. The A. E. error signal produced in the difference amplifier is amplified, rectified, and applied to the second input of the amplifier as the d-c stabilizing voltage.

  10. Stability theory of Knudsen plasma diodes

    SciTech Connect (OSTI)

    Kuznetsov, V. I. Ender, A. Ya.

    2015-11-15

    A stability theory is developed for a plasma diode in which an electron beam supplied from the emitter propagates without collisions in the self-consistent electric field against the immobile ion background. An integral equation for the amplitude of the perturbed field is deduced using the Q,G method for the regime without electron reflection from a potential barrier. Analytic solutions to this equation are obtained for a number of important particular cases, and the plasma dispersion properties are examined.

  11. Stability analysis in tachyonic potential chameleon cosmology

    SciTech Connect (OSTI)

    Farajollahi, H.; Salehi, A.; Tayebi, F.; Ravanpak, A. E-mail: a.salehi@guilan.ac.ir E-mail: aravanpak@guilan.ac.ir

    2011-05-01

    We study general properties of attractors for tachyonic potential chameleon scalar-field model which possess cosmological scaling solutions. An analytic formulation is given to obtain fixed points with a discussion on their stability. The model predicts a dynamical equation of state parameter with phantom crossing behavior for an accelerating universe. We constrain the parameters of the model by best fitting with the recent data-sets from supernovae and simulated data points for redshift drift experiment generated by Monte Carlo simulations.

  12. ION-STABILIZED ELECTRON INDUCTION ACCELERATOR

    DOE Patents [OSTI]

    Finkelstein, D.

    1960-03-22

    A method and apparatus for establishing an ion-stabilized self-focusing relativistic electron beam from a plasma are reported. A plasma is introduced into a specially designed cavity by plasma guns, and a magnetic field satisfying betatron conditions is produced in the cavity by currents flowing in the highly conductive, non-magnetic surface of the cavity. This field forms the electron beam by induction from the plasma.

  13. Computational Studies of Nucleosome Stability | Argonne Leadership

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

    Computing Facility nucleosome 1KX5 Image of the nucleosome 1KX5 from the Protein Data Bank (from X. Zhu, TACC). This DNA/protein complex will serve as the primary target of simulation studies to be performed by the Schatz group as part of the INCITE program. Computational Studies of Nucleosome Stability PI Name: George Schatz PI Email: schatz@chem.northwestern.edu Institution: Northwestern University Allocation Program: INCITE Allocation Hours at ALCF: 20 Million Year: 2013 Research Domain:

  14. Stabilization of Colloidal Silica Using Small Polyols

    SciTech Connect (OSTI)

    GULLEY, GERALD L.; MARTIN, JAMES E.

    1999-09-07

    We have discovered that small polyols are reasonably effective at stabilizing colloidal silica against aggregation, even under the conditions of high pH and salt concentration. Both quasielastic and elastic light scattering were used to show that these polyols dramatically decrease the aggregation rate of the suspension, changing the growth kinetics from diffusion-limited cluster-cluster aggregation to reaction-limited cluster-cluster aggregation. These polyols maybe useful in the treatment of tank wastes at the Hanford site.

  15. Oxygen stabilized zirconium vanadium intermetallic compound

    DOE Patents [OSTI]

    Mendelsohn, Marshall H.; Gruen, Dieter M.

    1982-01-01

    An oxygen stabilized intermetallic compound having the formula Zr.sub.x OV.sub.y where x=0.7 to 2.0 and y=0.18 to 0.33. The compound is capable of reversibly sorbing hydrogen at temperatures from -196.degree. C. to 450.degree. C. at pressures down to 10.sup.-6 Torr. The compound is also capable of selectively sorbing hydrogen from gaseous mixtures in the presence of CO and CO.sub.2.

  16. Stability and production of superheavy nuclei

    SciTech Connect (OSTI)

    Moeller, Peter; Nix, J. Rayford

    1998-02-15

    Beyond uranium heavy elements rapidly become increasingly unstable with respect to spontaneous fission as the proton number Z increases, because of the disruptive effect of the long-range Coulomb force. However, in the region just beyond Z=100 magic proton and neutron numbers and the associated shell structure enhances nuclear stability sufficiently to allow observation of additional nuclei. Some thirty years ago it was speculated that an island of spherical, relatively stable superheavy nuclei would exist near the next doubly magic proton-neutron combination beyond {sup 208}Pb, that is, at proton number Z=114 and neutron number N=184. Theory and experiment now show that there also exists a rock of stability in the vicinity of Z=110 and N=162 between the actinide region, which previously was the end of the peninsula of known elements, and the predicted island of spherical superheavy nuclei slightly southwest of the magic numbers Z=114 and N=184. We review here the stability properties of the heavy region of nuclei. Just as the decay properties of nuclei in the heavy region depend strongly on shell structure, this structure also dramatically affects the fusion entrance channel. The six most recently discovered new elements were all formed in cold-fusion reactions. We discuss here the effect of the doubly magic structure of the target in cold-fusion reactions on the fusion barrier and on dissipation.

  17. Stability and production of superheavy nuclei

    SciTech Connect (OSTI)

    Moeller, P.; Moeller, P.; Nix, J.R.

    1998-02-01

    Beyond uranium heavy elements rapidly become increasingly unstable with respect to spontaneous fission as the proton number {ital Z} increases, because of the disruptive effect of the long-range Coulomb force. However, in the region just beyond Z=100 magic proton and neutron numbers and the associated shell structure enhances nuclear stability sufficiently to allow observation of additional nuclei. Some thirty years ago it was speculated that an island of spherical, relatively stable superheavy nuclei would exist near the next doubly magic proton-neutron combination beyond {sup 208}Pb, that is, at proton number Z=114 and neutron number N=184. Theory and experiment now show that there also exists a rock of stability in the vicinity of Z=110 and N=162 between the actinide region, which previously was the end of the peninsula of known elements, and the predicted island of spherical superheavy nuclei slightly southwest of the magic numbers Z=114 and N=184. We review here the stability properties of the heavy region of nuclei. Just as the decay properties of nuclei in the heavy region depend strongly on shell structure, this structure also dramatically affects the fusion entrance channel. The six most recently discovered new elements were all formed in cold-fusion reactions. We discuss here the effect of the doubly magic structure of the target in cold-fusion reactions on the fusion barrier and on dissipation. {copyright} {ital 1998 American Institute of Physics.}

  18. RELAP-7 Numerical Stabilization: Entropy Viscosity Method

    SciTech Connect (OSTI)

    R. A. Berry; M. O. Delchini; J. Ragusa

    2014-06-01

    The RELAP-7 code is the next generation nuclear reactor system safety analysis code being developed at the Idaho National Laboratory (INL). The code is based on the INL's modern scientific software development framework, MOOSE (Multi-Physics Object Oriented Simulation Environment). The overall design goal of RELAP-7 is to take advantage of the previous thirty years of advancements in computer architecture, software design, numerical integration methods, and physical models. The end result will be a reactor systems analysis capability that retains and improves upon RELAP5's capability and extends the analysis capability for all reactor system simulation scenarios. RELAP-7 utilizes a single phase and a novel seven-equation two-phase flow models as described in the RELAP-7 Theory Manual (INL/EXT-14-31366). The basic equation systems are hyperbolic, which generally require some type of stabilization (or artificial viscosity) to capture nonlinear discontinuities and to suppress advection-caused oscillations. This report documents one of the available options for this stabilization in RELAP-7 -- a new and novel approach known as the entropy viscosity method. Because the code is an ongoing development effort in which the physical sub models, numerics, and coding are evolving, so too must the specific details of the entropy viscosity stabilization method. Here the fundamentals of the method in their current state are presented.

  19. Stability and production of superheavy nuclei

    SciTech Connect (OSTI)

    Moeller, P. |; Nix, J.R.

    1997-12-31

    Beyond uranium heavy elements rapidly become increasingly unstable with respect to spontaneous fission as the proton number Z increases, because of the disruptive effect of the long-range Coulomb force. However, in the region just beyond Z = 100 magic proton and neutron numbers and the associated shell structure enhances nuclear stability sufficient to allow observation of additional nuclei. Some thirty years ago it was speculated that an island of spherical, relatively stable superheavy nuclei would exist near the next doubly magic proton-neutron combination beyond {sup 208}Pb, that is, at proton number Z = 114 and neutron number N = 184. Theory and experiment now show that there also exists a rock of stability in the vicinity of Z = 110 and N = 162 between the actinide region, which previously was the end of the peninsula of known elements, and the predicted island of spherical superheavy nuclei slightly southwest of the magic numbers Z = 114 and N = 184. The authors review here the stability properties of the heavy region of nuclei. Just as the decay properties of nuclei in the heavy region depend strongly on shell structure, this structure also dramatically affects the fusion entrance channel. The six most recently discovered new elements were all formed in cold-fusion reactions. They discuss here the effect of the doubly magic structure of the target in cold-fusion reactions on the fusion barrier and on dissipation.

  20. Stability Of Plasma Configurations During Compression

    SciTech Connect (OSTI)

    Ruden, E L; Hammer, J H

    2006-10-27

    Magnetized Target Fusion (MTF) efforts are based on calculations showing that the addition of a closed magnetic field reduces the driver pressure and rise time requirements for inertial confinement fusion by reducing thermal conductivity. Instabilities that result in convective bulk transport at the Alphen time scale are of particular concern since they are much faster than the implosion time. Such instabilities may occur during compression due to, for example, an increase in the plasma-magnetic pressure ratio {beta} or, in the case of a rotating plasma, spin-up due to angular momentum conservation. Details depend on the magnetic field topology and compression geometry. A hard core z pinch with purely azimuthal magnetic field can theoretically be made that relaxes into a wall supported diffuse profile satisfying the Kadomtsev criterion for the stability of m = 0 modes, which is theoretically preserved during cylindrical outer wall compression. The center conductor radius and current must also be large enough to keep the {beta} below stability limits to stabilize modes with m > 0. The stability of m > 0 modes actually improves during compression. A disadvantage of this geometry, though, is plasma contact with the solid boundaries. In addition to the risk of high Z impurity contamination during the (turbulent) relaxation process, contact thereafter can cause plasma pressure near the outer surface to drop, violating the Kadomtsev criterion locally. The resultant m = 0 instability can then convect impurities inward. Also, the center conductor (which is not part of the Kadomtsev profile) can go m = 0 unstable, convecting impurities outward. One way to mitigate impurity convection is to instead use a Woltjer-Taylor minimum magnetic energy configuration (spheromak). The sheared magnetic field inhibits convection, and the need for the center conductor is eliminated. The plasma, however, would likely still have to be wall supported due to unfavorable {beta} scaling during

  1. Stability of Biodiesel and Biodiesel Blends: Interim Report

    SciTech Connect (OSTI)

    McCormick, R. L.; Alleman, T. L.; Waynick, J. A.; Westbrook, S. R.; Porter, S.

    2006-04-01

    This is an interim report for a study of biodiesel oxidative stability. It describes characterization and accelerated stability test results for 19 B100 samples and six diesel fuels.

  2. Excellent Stability of a Lithium-Ion-Conducting Solid Electrolyte...

    Office of Scientific and Technical Information (OSTI)

    Excellent Stability of a Lithium-Ion-Conducting Solid Electrolyte upon Reversible Li+H+ Exchange in Aqueous Solutions Title: Excellent Stability of a Lithium-Ion-Conducting Solid ...

  3. Advanced Oxidation & Stabilization of PAN-Based Carbon Precursor...

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

    More Documents & Publications Advanced Oxidation & Stabilization of PAN-Based Carbon Precursor Fibers Vehicle Technologies Office Merit Review 2015: Advanced ...

  4. Acid Pit Stabilization Project (Volume 1 - Cold Testing) and (Volume 2 - Hot Testing)

    SciTech Connect (OSTI)

    G. G. Loomis; A. P. Zdinak; M. A. Ewanic; J. J. Jessmore

    1998-01-01

    During the summer and fall of Fiscal Year 1997, a Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) Treatability Study was performed at the Idaho National Engineering and Environmental Laboratory. The study involved subsurface stabilization of a mixed waste contaminated soil site called the Acid Pit. This study represents the culmination of a successful technology development effort that spanned Fiscal Years 1994-1996. Research and development of the in situ grout stabilization technique was conducted. Hardware and implementation techniques are currently documented in a patent pending with the United States Patent and Trademark Office. The stabilization technique involved using jet grouting of an innovative grouting material to form a monolith out of the contamination zone. The monolith simultaneously provides a barrier to further contaminant migration and closes voids in the soil structure against further subsidence. This is accomplished by chemical incorporation of contaminants into less soluble species and achieving a general reduction in hydraulic conductivity within the monolith. The grout used for this study was TECT-HG, a relatively dense iron oxide-based cementitious grout. The treatability study involved cold testing followed by in situ stabilization of the Acid Pit. Volume 1 of this report discusses cold testing, performed as part of a ''Management Readiness Assessment'' in preparation for going hot. Volume 2 discusses the results of the hot Acid Pit Stabilization phase of this project. Drilling equipment was specifically rigged to reduce the spread of contamination, and all grouting was performed under a concrete block containing void space to absorb any grout returns. Data evaluation included examination of implementability of the grouting process and an evaluation of the contaminant spread during grouting. Following curing of the stabilized pit, cores were obtained and evaluated for toxicity characteristic leach ing

  5. EA-0978: Final Environmental Assessment | Department of Energy

    Office of Environmental Management (EM)

    3: Final Environmental Assessment EA-0843: Final Environmental Assessment Idaho National Engineering Laboratory Low-Level and Mixed Waste Processing This EA evaluates the environmental impacts of a proposal to (1) reduce the volume of the U.S. Department of Energy's Idaho National Engineering Laboratory's (INEL) generated low-level waste (LLW) through sizing, compaction, and stabilization at Waste Experimental Reduction Facility (WERF); and (2) use commercial offsite facilities for supplemental

  6. Off-set stabilizer for comparator output

    DOE Patents [OSTI]

    Lunsford, James S.

    1991-01-01

    A stabilized off-set voltage is input as the reference voltage to a comparator. In application to a time-interval meter, the comparator output generates a timing interval which is independent of drift in the initial voltage across the timing capacitor. A precision resistor and operational amplifier charge a capacitor to a voltage which is precisely offset from the initial voltage. The capacitance of the reference capacitor is selected so that substantially no voltage drop is obtained in the reference voltage applied to the comparator during the interval to be measured.

  7. First-principles approaches to materials stability

    SciTech Connect (OSTI)

    Turchi, P.E.A.

    1994-12-01

    Parameter-free electronic structure approaches are now being used to predict chemical order, and to a lesser extent, structural transformations in multi-component alloys, as a function of temperature, concentration and pressure. The underlying state-of-the-art framework will be briefly reviewed, and applications to specific aspects of the statics and kinetics of alloy transformations will be discussed. Finally special emphasis will be put on the relations between stability and mechanical properties in substitutional alloys with examples pertaining to the energetics of antiphase boundaries and interfaces.

  8. Ceramic membranes with enhanced thermal stability

    DOE Patents [OSTI]

    Anderson, Marc A.; Xu, Qunyin; Bischoff, Brian L.

    1993-01-01

    A method of creating a ceramic membrane with enhanced thermal stability is disclosed. The method involves combining quantities of a first metal alkoxide with a second metal, the quantities selected to give a preselected metal ratio in the resultant membrane. A limited amount of water and acid is added to the combination and stirred until a colloidal suspension is formed. The colloid is dried to a gel, and the gel is fired at a temperature greater than approximately 400.degree. C. The porosity and surface area of ceramic membranes formed by this method are not adversely affected by this high temperature firing.

  9. Resonance-Stabilized Anion Exchange Polymer Electrolytes

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

    N C L A S S I F I E D Resonance-Stabilized Anion Exchange Polymer Electrolytes Yu Seung Kim yskim@lanl.gov Los Alamos National Laboratory DOE Kickoff meeting for fuel cell applied R&D award programs, September 30- October 1, Washington, DC 1 Innovative Concepts U N C L A S S I F I E D Project Objectives * Technical Barriers: Fuel cell commercialization is a cost issue. Pt is the primary driver for cost. * Technical Cost Target: $50/kW for fuel cell system. * Objective: Reduce fuel cell cost

  10. Beam stability & nonlinear dynamics. Formal report

    SciTech Connect (OSTI)

    Parsa, Z.

    1996-12-31

    his Report includes copies of transparencies and notes from the presentations made at the Symposium on Beam Stability and Nonlinear Dynamics, December 3-5, 1996 at the Institute for Theoretical Physics, University of California, Santa Barbara California, that was made available by the authors. Editing, reduction and changes to the authors contributions were made only to fulfill the printing and publication requirements. We would like to take this opportunity and thank the speakers for their informative presentations and for providing copies of their transparencies and notes for inclusion in this Report.

  11. Radiation stability of graphene under extreme conditions

    SciTech Connect (OSTI)

    Kumar, Sunil, E-mail: kumar.sunil092@gmail.com; Tripathi, Ambuj; Khan, Saif A.; Pannu, Compesh; Avasthi, Devesh K. [Materials Science Group, Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi 110067 (India)

    2014-09-29

    In this letter, we report radiation stability of graphene under extreme condition of high energy density generated by 150?MeV Au ion irradiation. The experiment reveals that graphene is radiation resistant for irradiation at 10{sup 14?}ions/cm{sup 2} of 150?MeV Au ions. It is significant to note that annealing effects are observed at lower fluences whereas defect production occurs at higher fluences but significant crystallinity is retained. Our results demonstrate applicability of graphene based devices in radiation environment and space applications.

  12. Oxygen stabilized zirconium-vanadium-iron alloy

    DOE Patents [OSTI]

    Mendelsohn, Marshall H.; Gruen, Dieter M.

    1982-01-01

    An oxygen stabilized intermetallic compound having the formula (Zr.sub.1-x Ti.sub.x).sub.2-u (V.sub.1-y Fe.sub.y)O.sub.z where x=0.0 to 0.9, y=0.01 to 0.9, z=0.25 to 0.5 and u=0 to 1. The compound is capable of reversibly sorbing hydrogen at temperatures from -196.degree. C. to 200.degree. C. at pressures down to 10.sup.-6 torr. The compound is suitable for use as a hydrogen getter in low pressure, high temperature applications such as magnetic confinement fusion devices.

  13. Stability monitoring system for the Fresh Kills Landfill in New York City

    SciTech Connect (OSTI)

    Thomann, T.G.; Khoury, M.A.; Rosenfarb, J.L.; Napolitano, R.A.

    1999-07-01

    The Fresh Kills Landfill, located in Staten Island, New York, serves as the repository of all municipal solid waste from the five boroughs of New York City. Because of the existence of compressible soils under most of the filling areas and the urban environment surrounding the landfill, considerable importance is being placed on the relationship between filling operations and the stability of the landfill. As a result of this concern and to address Order on Consent requirements, a program of geotechnical site characterizations, stability analyses, and design and implementation of a geotechnical instrumentation program was undertaken. Geotechnical instruments have been installed within the refuse fill and foundation soils to monitor both the magnitude and rate of change of pore pressure, lateral and vertical movements, and temperature. This paper presents an overview of the subsurface conditions, the overall instrumentation plan for assessing the landfill stability, a description of the various instruments, the performance of these instruments to date, an overview of the collected measurements, and a description of how these measurements are used to monitor the stability.

  14. Sandia Energy - Resource Assessment

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

    Resource Assessment Home Stationary Power Energy Conversion Efficiency Water Power Resource Assessment Resource AssessmentAshley Otero2016-01-05T19:06:04+00:00 Characterizing wave...

  15. Recent progress in degradation and stabilization of organic solar cells

    SciTech Connect (OSTI)

    Cao, Huanqi; He, Weidong; Mao, Yiwu; Lin, Xiao; Ishikawa, Ken; Dickerson, James H.; Hess, Wayne P.

    2014-10-15

    Stability is of paramount importance in organic semiconductor devices, especially in organic solar cells (OSCs). Serious degradation in air limits wide applications of these flexible, light-weight and low-cost power-generation devices. Studying the stability of organic solar cells will help us understand degradation mechanisms and further improve the stability of these devices. There are many investigations into the efficiency and stability of OSCs. The efficiency and stability of devices even of the same photoactive materials are scattered in different papers. In particular, the extrinsic degradation that mainly occurs near the interface between the organic layer and the cathode is a major stability concern. In the past few years, researchers have developed many new cathodes and cathode buffer layers, some of which have astonishingly improved the stability of OSCs. In this review article, we discuss the recent developments of these materials and summarize recent progresses in the study of the degradation/stability of OSCs, with emphasis on the extrinsic degradation/stability that is related to the intrusion of oxygen and water. The review provides detailed insight into the current status of research on the stability of OSCs and seeks to facilitate the development of highly-efficient OSCs with enhanced stability.

  16. Northwest Energy Market Assessment

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

    Northwest Energy Market Assessment Pages Northwest-Energy-Market-Assessment Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects &...

  17. ORISE: Hazard Assessments

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

    internal and external radiation dose assessments. Our capabililities include: Linkage of exposure data to site rosters Assessment of retrospective exposures Preparation of...

  18. Survey of Biomass Resource Assessments and Assessment Capabilities...

    Open Energy Info (EERE)

    Biomass Resource Assessments and Assessment Capabilities in APEC Economies Jump to: navigation, search Logo: Survey of Biomass Resource Assessments and Assessment Capabilities in...

  19. Truck Roll Stability Data Collection and Analysis

    SciTech Connect (OSTI)

    Stevens, SS

    2001-07-02

    The principal objective of this project was to collect and analyze vehicle and highway data that are relevant to the problem of truck rollover crashes, and in particular to the subset of rollover crashes that are caused by the driver error of entering a curve at a speed too great to allow safe completion of the turn. The data are of two sorts--vehicle dynamic performance data, and highway geometry data as revealed by vehicle behavior in normal driving. Vehicle dynamic performance data are relevant because the roll stability of a tractor trailer depends both on inherent physical characteristics of the vehicle and on the weight and distribution of the particular cargo that is being carried. Highway geometric data are relevant because the set of crashes of primary interest to this study are caused by lateral acceleration demand in a curve that exceeds the instantaneous roll stability of the vehicle. An analysis of data quality requires an evaluation of the equipment used to collect the data because the reliability and accuracy of both the equipment and the data could profoundly affect the safety of the driver and other highway users. Therefore, a concomitant objective was an evaluation of the performance of the set of data-collection equipment on the truck and trailer. The objective concerning evaluation of the equipment was accomplished, but the results were not entirely positive. Significant engineering apparently remains to be done before a reliable system can be fielded. Problems were identified with the trailer to tractor fiber optic connector used for this test. In an over-the-road environment, the communication between the trailer instrumentation and the tractor must be dependable. In addition, the computer in the truck must be able to withstand the rigors of the road. The major objective--data collection and analysis--was also accomplished. Using data collected by instruments on the truck, a ''bad-curve'' database can be generated. Using this database

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

    SciTech Connect (OSTI)

    DUNCAN JB; COOKE GA; LOCKREM LL

    2009-07-20

    This report documents the effort to sequester technetium by the use of getters, reductants (tin(II) apatite and ferrous sulfate), sorbents (A530E and A532E ion exchange resins), and cementitious waste form. The pertechnetate form of technetium is highly soluble and mobile in aerobic (oxidizing) environments.

  1. Sandia Energy - Solar Resource Assessment

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

    Solar Resource Assessment Home Stationary Power Energy Conversion Efficiency Solar Energy Photovoltaics Solar Resource Assessment Solar Resource AssessmentTara...

  2. Paducah Needs Assessment

    Office of Energy Efficiency and Renewable Energy (EERE)

    Needs Assessment for former Oak Ridge K-25, Paducah, and Portsmouth Gaseous Diffusion Plant production workers.

  3. Revenue-stability-target rate making

    SciTech Connect (OSTI)

    Chernick, P.L.

    1983-02-17

    The commonly used rate-making approaches necessarily base themselves on assumptions, vital to their success, about future levels of utility aservice sales. But since sales are a function of random variables beyond the control of the utility as well as actions by the utility itself, the resulting rates fail to protect the utility's revenue stream and its realized rate of return. This article proposes an alternative approach which would decouple utility revenues from sales, thus stabilizing revenue streams with respect to sales fluctuations and rate design changes. Among the benefits would be a lower cost of capital for the utility, as well as decreased utility resistance to conservation by consumers and to efficient rate design.

  4. Stabilizing the false vacuum. Mott skyrmions

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

    Kanász-Nagy, M.; Dóra, B.; Demler, E. A.; Zaránd, G.

    2015-01-13

    Topological excitations keep fascinating physicists since many decades. While individual vortices and solitons emerge and have been observed in many areas of physics, their most intriguing higher dimensional topological relatives, skyrmions (smooth, topologically stable textures) and magnetic monopoles emerging almost necessarily in any grand unified theory and responsible for charge quantization remained mostly elusive. Here we propose that loading a three-component nematic superfluid such as 23Na into a deep optical lattice and thereby creating an insulating core, one can create topologically stable skyrmion textures. The skyrmion’s extreme stability and its compact geometry enable one to investigate the skyrmion’s structure, andmore » the interplay of topology and excitations in detail. In particular, the superfluid’s excitation spectrum as well as the quantum numbers are demonstrated to change dramatically due to the skyrmion, and reflect the presence of a trapped monopole, as imposed by the skyrmion’s topology.« less

  5. Stabilized free-piston Stirling cycle machine

    SciTech Connect (OSTI)

    Emigh, S.G.; White, M.A.; Kennewich, P.R.

    1990-11-06

    This patent describes a free piston Stirling cycle machine. It comprises: a displacer cylinder having a central cylindrical axis; a displacer located within the displacer cylinder and movably mounted along the axis; an enclosed gas spring; working gas means including an enclosed volume of pressurized working gas directed to opposite axial ends of the displacer for cyclically reciprocating the displacer along its axis in a Stirling cycle mode of operation; counterbalance means mounted for axial motion directly related to that of the displacer, stabilizer means mechanically coupled to the counterbalance means for cyclically constraining reciprocating axial motion of the counterbalance means in a repetitive pattern; and hydrostatic fluid means operatively coupling the counterbalance means to the gas spring for accommodating fluid volumetric displacement due to engine operation, the hydrostatic fluid means also being operably coupling the displacer and counterbalance means for imparting axial movement between them.

  6. Stabilizing the false vacuum. Mott skyrmions

    SciTech Connect (OSTI)

    Kanász-Nagy, M.; Dóra, B.; Demler, E. A.; Zaránd, G.

    2015-01-13

    Topological excitations keep fascinating physicists since many decades. While individual vortices and solitons emerge and have been observed in many areas of physics, their most intriguing higher dimensional topological relatives, skyrmions (smooth, topologically stable textures) and magnetic monopoles emerging almost necessarily in any grand unified theory and responsible for charge quantization remained mostly elusive. Here we propose that loading a three-component nematic superfluid such as 23Na into a deep optical lattice and thereby creating an insulating core, one can create topologically stable skyrmion textures. The skyrmion’s extreme stability and its compact geometry enable one to investigate the skyrmion’s structure, and the interplay of topology and excitations in detail. In particular, the superfluid’s excitation spectrum as well as the quantum numbers are demonstrated to change dramatically due to the skyrmion, and reflect the presence of a trapped monopole, as imposed by the skyrmion’s topology.

  7. ORISE: Hazard Assessments

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

    Hazard Assessments The Oak Ridge Institute for Science and Education (ORISE) analyzes accumulated data to identify potential workplace hazards to which individuals or groups of workers may be exposed. ORISE assesses both chemical and radiation exposures, and conducts both internal and external radiation dose assessments. Our capabililities include: Linkage of exposure data to site rosters Assessment of retrospective exposures Preparation of assessment protocols Design and testing of dose

  8. Uv-Light Stabilization Additive Package For Solar Cell Module And Laminated Glass Applications

    DOE Patents [OSTI]

    Hanoka, Jack I.; Klemchuk, Peter P.

    2002-03-05

    An ultraviolet light stabilization additive package is used in an encapsulant material that may be used in solar cell modules, laminated glass and a variety of other applications. The ultraviolet light stabilization additive package comprises a first hindered amine light stabilizer and a second hindered amine light stabilizer. The first hindered amine light stabilizer provides thermal oxidative stabilization, and the second hindered amine light stabilizer providing photo-oxidative stabilization.

  9. Bainitic stabilization of austenite in low alloy steels

    SciTech Connect (OSTI)

    Brandt, M.L.; Olson, G.B.

    1992-12-31

    Stabilization of retained austenite via bainitic transformation was studied in a triple-phase, ferrite/bainite/austenite steel 0.26C1.52Si-1.2Mn. Volume fraction and stability of retained austenite are varied by isothermal transformation time at 752F following intercritical annealing at 1418F. Austenite stability is measured using the Bolling-Richman technique. Austenite content is measured by and austenite carbon content is estimated from lattice parameters. Strength and ductility measured in both uniaxial and plane-strain tension are correlated with austenite amount and stability. While austenite content peaks at 3 minutes transformation time, stability continues to increase out to 5 minutes associated with a saturation of austenite carbon content and continued refinement of austenite particle size. Despite the reduced austenite content of 8 percent, the higher stability provided by the 5 minutes treatment gives superior mechanical properties.

  10. Bainitic stabilization of austenite in low alloy steels

    SciTech Connect (OSTI)

    Brandt, M.L.; Olson, G.B.

    1992-01-01

    Stabilization of retained austenite via bainitic transformation was studied in a triple-phase, ferrite/bainite/austenite steel 0.26C1.52Si-1.2Mn. Volume fraction and stability of retained austenite are varied by isothermal transformation time at 752F following intercritical annealing at 1418F. Austenite stability is measured using the Bolling-Richman technique. Austenite content is measured by and austenite carbon content is estimated from lattice parameters. Strength and ductility measured in both uniaxial and plane-strain tension are correlated with austenite amount and stability. While austenite content peaks at 3 minutes transformation time, stability continues to increase out to 5 minutes associated with a saturation of austenite carbon content and continued refinement of austenite particle size. Despite the reduced austenite content of 8 percent, the higher stability provided by the 5 minutes treatment gives superior mechanical properties.

  11. Methods and apparatus for broadband frequency comb stabilization

    DOE Patents [OSTI]

    Cox, Jonathan A; Kaertner, Franz X

    2015-03-17

    Feedback loops can be used to shift and stabilize the carrier-envelope phase of a frequency comb from a mode-locked fibers laser or other optical source. Compared to other frequency shifting and stabilization techniques, feedback-based techniques provide a wideband closed-loop servo bandwidth without optical filtering, beam pointing errors, or group velocity dispersion. It also enables phase locking to a stable reference, such as a Ti:Sapphire laser, continuous-wave microwave or optical source, or self-referencing interferometer, e.g., to within 200 mrad rms from DC to 5 MHz. In addition, stabilized frequency combs can be coherently combined with other stable signals, including other stabilized frequency combs, to synthesize optical pulse trains with pulse durations of as little as a single optical cycle. Such a coherent combination can be achieved via orthogonal control, using balanced optical cross-correlation for timing stabilization and balanced homodyne detection for phase stabilization.

  12. Approved Sorbents, Stabilizers, and Void Fillers - Hanford Site

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

    Sorbents, Stabilizers, and Void Fillers About Us Hanford Site Solid Waste Acceptance Program What's New Acceptance Criteria Acceptance Process Tools Approved High Integrity Containers Approved Sorbents, Stabilizers, and Void Fillers Disposal Information Points of Contact Approved Sorbents, Stabilizers, and Void Fillers Email Email Page | Print Print Page | Text Increase Font Size Decrease Font Size Approved list has been temporarily discontinued. Please contact your waste services POC.

  13. Area C borrow Site Habitat Assessment

    SciTech Connect (OSTI)

    Sackschewsky, Michael R.; Downs, Janelle L.

    2009-12-04

    A habitat quality assessment was performed within selected portions of the proposed Area C Borrow Source. The previously identified Bitterbrush / Indian ricegrass stabilized dune element occurrence was determined to be better described as a sagebrush /needle-and-thread grass element occurrence of fair to good quality. A new habitat polygon is suggested adjacent to this element occurrence, which would also be sagebrush/needle-and-thread grass, but of poor quality. The proposed site of initial borrow site development was found to be a very low quality community dominated by cheatgrass.

  14. Maturation and Hardening of the Stabilized Radiometer Platforms...

    Office of Scientific and Technical Information (OSTI)

    Title: Maturation and Hardening of the Stabilized Radiometer Platforms (STRAPS) Field Campaign Report Measurements of solar and infrared irradiance by instruments rigidly mounted ...

  15. Metal–Organic Frameworks Stabilize Solution-Inaccessible Cobalt...

    Office of Scientific and Technical Information (OSTI)

    MetalOrganic Frameworks Stabilize Solution-Inaccessible Cobalt Catalysts for Highly Efficient Broad-Scope Organic Transformations Citation Details In-Document Search Title: ...

  16. Frequency Stabilization in Non-linear MEMS and NEMS Oscillators...

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

    allows creating micro and nano mechanical oscillators with excellent frequency stability. ... A team of Argonne scientists has developed a method to make the micronano oscillators ...

  17. Dromion-like structures and stability analysis in the variable...

    Office of Scientific and Technical Information (OSTI)

    Dromion-like structures and stability analysis in the variable coefficients complex Ginzburg-Landau equation Citation Details In-Document Search Title: Dromion-like structures and ...

  18. Final Report: Manganese Redox Mediation of UO2 Stability and...

    Office of Scientific and Technical Information (OSTI)

    Meter Scale Dynamics Citation Details In-Document Search Title: Final Report: Manganese Redox Mediation of UO2 Stability and Uranium Fate in the Subsurface: Molecular and Meter ...

  19. Phonon anharmonicity of monoclinic zirconia and yttrium-stabilized...

    Office of Scientific and Technical Information (OSTI)

    Title: Phonon anharmonicity of monoclinic zirconia and yttrium-stabilized zirconia Authors: Li, Chen 1 ; Smith, Hillary 2 ; Lan, Tian 2 ; Niedziela, Jennifer L 1 ; Munoz, ...

  20. Frequency Stabilization in Nonlinear MEMS and NEMS Oscillators...

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

    Frequency Stabilization in Nonlinear MEMS and NEMS Oscillators Technology available for licensing: a method to create micro- and nanoscale mechanical oscillators with excellent...

  1. Advanced Oxidation & Stabilization of PAN-Based Carbon Precursor...

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

    More Documents & Publications Vehicle Technologies Office Merit Review 2015: Advanced Oxidation & Stabilization of PAN-Based Carbon Precursor Fibers Advanced Oxidation & ...

  2. Novel Compounds for Enhancing Electrolyte Stability and Safety...

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

    of Lithium-ion Cells Novel Compounds for Enhancing Electrolyte Stability and Safety of Lithium-ion Cells 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review...

  3. Electrostatic stabilizer for a passive magnetic bearing system

    DOE Patents [OSTI]

    Post, Richard F.

    2015-11-24

    Electrostatic stabilizers are provided for passive bearing systems composed of annular magnets having a net positive stiffness against radial displacements and that have a negative stiffness for vertical displacements, resulting in a vertical instability. Further embodiments are shown of a radial electrostatic stabilizer geometry (using circuitry similar to that employed in the vertical stabilizer). This version is suitable for stabilizing radial (lateral) displacements of a rotor that is levitated by annular permanent magnets that are stable against vertical displacements but are unstable against radial displacements.

  4. Electrostatic stabilizer for a passive magnetic bearing system

    DOE Patents [OSTI]

    Post, Richard F.

    2015-12-01

    Electrostatic stabilizers are provided for passive bearing systems composed of annular magnets having a net positive stiffness against radial displacements and that have a negative stiffness for vertical displacements, resulting in a vertical instability. Further embodiments are shown of a radial electrostatic stabilizer geometry (using circuitry similar to that employed in the vertical stabilizer). This version is suitable for stabilizing radial (lateral) displacements of a rotor that is levitated by annular permanent magnets that are stable against vertical displacements but are unstable against radial displacements.

  5. Modeling fluid flow in deformation bands with stabilized localization...

    Office of Scientific and Technical Information (OSTI)

    Modeling fluid flow in deformation bands with stabilized localization mixed finite elements. Citation Details In-Document Search Title: Modeling fluid flow in deformation bands...

  6. Increasing the Stability of Metal-Organic Frameworks | Center...

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

    Increasing the Stability of Metal-Organic Frameworks Previous Next List Mathieu Bosch, Muwei ... However, the robustness and reactivity of a given framework are largely dependent on ...

  7. Methods and compositions using calcium carbonate and stabilizer

    DOE Patents [OSTI]

    Fernandez, Miguel; Chen, Irvin; Lee, Patricia Tung; Ginder-Vogel, Matthew

    2015-01-20

    Provided herein are compositions, methods, and systems for a material containing metastable carbonate and stabilizer. Methods for making the compositions and using the compositions are also provided.

  8. Methods and compositions using calcium carbonate and stabilizer

    DOE Patents [OSTI]

    Fernandez, Miguel; Chen, Irvin; Lee, Patricia Tung; Ginder-Vogel, Matthew

    2015-09-22

    Provided herein are compositions, methods, and systems for a material containing metastable carbonate and stabilizer. Methods for making the compositions and using the compositions are also provided.

  9. PH/sub 3/ treatment for polymer stabilization

    DOE Patents [OSTI]

    Not Available

    1982-07-20

    Polymers are stabilized against oxidative degradation by treatment with phosphine gas. The treatment can be used in situ on polymeric components already in use.

  10. Atomic Layer Deposition for Stabilization of Amorphous Silicon...

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

    More Documents & Publications Nanostructured Metal Oxide Anodes Atomic Layer Deposition for Stabilization of Silicon Anodes Development of Industrially Viable Battery Electrode ...

  11. Stabilizing coal-water mixtures with portland cement

    DOE Patents [OSTI]

    Steinberg, Meyer; Krishna, Coimbatore R.

    1986-01-01

    Coal-water mixes stabilized by the addition of portland cement which may additionally contain retarding carbohydrates, or borax are described.

  12. Mutations that stabilize the open state of the Erwinia chrisanthemi...

    Office of Scientific and Technical Information (OSTI)

    Citation Details In-Document Search Title: Mutations that stabilize the open state of the ... Country of Publication: United States Language: ENGLISH Word Cloud More Like This Full ...

  13. Epitaxial stabilization and phase instability of VO2 polymorphs...

    Office of Scientific and Technical Information (OSTI)

    Epitaxial stabilization and phase instability of VO2 polymorphs Citation ... OSTI Identifier: 1259840 Type: Accepted Manuscript Journal Name: Scientific Reports Additional Journal ...

  14. Adaptive Stack with Subdivided Cells for Improved Stability,...

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

    and Durability under Automotive Load Cycle Adaptive Stack with Subdivided Cells for Improved Stability, Reliability, and Durability under Automotive Load Cycle Part of a 100 ...

  15. Epitaxial stabilization and phase instability of VO2 polymorphs...

    Office of Scientific and Technical Information (OSTI)

    Citation Details In-Document Search Title: Epitaxial ... Here, we report epitaxial stabilization of the VO2 ... Type: Accepted Manuscript Journal Name: Scientific Reports ...

  16. Record activity and stability of dealloyed bimetallic catalysts...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Record activity and stability of dealloyed bimetallic catalysts for proton exchange membrane fuel cells Citation Details In-Document Search Title: Record activity ...

  17. Excellent Stability of a Lithium-Ion-Conducting Solid Electrolyte...

    Office of Scientific and Technical Information (OSTI)

    Excellent Stability of a Lithium-Ion-Conducting Solid Electrolyte upon Reversible Li+H+ Exchange in Aqueous Solutions Citation Details In-Document Search Title: Excellent ...

  18. Evaluation of crystallinity and film stress in yttria-stabilized...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Evaluation of crystallinity and film stress in yttria-stabilized zirconia thin films Citation Details In-Document Search Title: Evaluation of crystallinity and ...

  19. Hydromagnetic Stability of Toroidal Equilibria with an Externally...

    Office of Scientific and Technical Information (OSTI)

    The most general condition which is necessary for stability with respect to localized perturbations is obtained as a ratio of two infinite determinants. Authors: Johnson, John L. ; ...

  20. Structural properties and relative stability of (meta)stable...

    Office of Scientific and Technical Information (OSTI)

    Structural properties and relative stability of (meta)stable ordered, partially ordered, and disordered Al-Li alloy phases Prev Next Title: Structural properties and relative ...

  1. Sub-millikelvin stabilization of a closed cycle cryocooler (Journal...

    Office of Scientific and Technical Information (OSTI)

    K to 300 K, while the cooling power is virtually undiminished. The damping system is small, inexpensive, can be ... capacity; copper; thermal stability; materials properties Word ...

  2. Stabilizing coal-water mixtures with Portland cement

    DOE Patents [OSTI]

    Steinberg, M.; Krishna, C.R.

    1984-10-17

    Coal-water mixes stabilized by the addition of Portland cement which may additionally contain retarding carbohydrates, or borax are described. 1 tab.

  3. Stabilization of Pt monolayer catalysts under harsh conditions...

    Office of Scientific and Technical Information (OSTI)

    Type: Accepted Manuscript Journal Name: Journal of Chemical Physics Additional Journal ... surface alloy; acidalkaline solution; stability; ORR; DFT Word Cloud More ...

  4. Distributed road assessment system

    DOE Patents [OSTI]

    Beer, N. Reginald; Paglieroni, David W

    2014-03-25

    A system that detects damage on or below the surface of a paved structure or pavement is provided. A distributed road assessment system includes road assessment pods and a road assessment server. Each road assessment pod includes a ground-penetrating radar antenna array and a detection system that detects road damage from the return signals as the vehicle on which the pod is mounted travels down a road. Each road assessment pod transmits to the road assessment server occurrence information describing each occurrence of road damage that is newly detected on a current scan of a road. The road assessment server maintains a road damage database of occurrence information describing the previously detected occurrences of road damage. After the road assessment server receives occurrence information for newly detected occurrences of road damage for a portion of a road, the road assessment server determines which newly detected occurrences correspond to which previously detected occurrences of road damage.

  5. Radiation damage in cubic-stabilized zirconia

    SciTech Connect (OSTI)

    Costantini, Jean-Marc; Beuneu, Francois; Weber, William J

    2013-01-01

    Cubic yttria-stabilized zirconia (YSZ) can be used for nuclear applications as an inert matrix for actinide immobilization or transmutation. Indeed, the large amount of native oxygen vacancies leads to a high radiation tolerance of this material owing to defect recombination occurring in the atomic displacements cascades induced by fast neutron irradiation or ion implantations, as showed by Molecular dynamics (MD) simulations. Amorphization cannot be obtained in YSZ either by nuclear-collision or electronic-excitation damage, just like in urania. A kind of polygonization structure with slightly disoriented crystalline domains is obtained in both cases. In the first steps of damage, specific isolated point defects (like F+-type color centers) and point-defect clusters are produced by nuclear collisions with charged particles or neutrons. Further increase of damage leads to dislocation-loop formation, then to collapse of the dislocation network into a polygonization structure. For swift heavy ion irradiations, a similar polygonization structure is obtained above a threshold stopping power value of about 20-30 keV nm-1.

  6. Caraustar Industries Energy Assessment

    SciTech Connect (OSTI)

    2010-06-25

    This plant-wide assessment case study is about commissioned energy assessments by the U.S. Department of Energy Industrial Technologies Program at two of Caraustar's recycled paperboard mills.

  7. Home Energy Assessments

    Broader source: Energy.gov [DOE]

    A home energy assessment, also known as a home energy audit, is the first step to assess how much energy your home consumes and to evaluate what measures you can take to make your home more energy...

  8. Solar Resource Assessment

    SciTech Connect (OSTI)

    Renne, D.; George, R.; Wilcox, S.; Stoffel, T.; Myers, D.; Heimiller, D.

    2008-02-01

    This report covers the solar resource assessment aspects of the Renewable Systems Interconnection study. The status of solar resource assessment in the United States is described, and summaries of the availability of modeled data sets are provided.

  9. ORISE: Environmental assessments

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

    Environmental assessments An ORISE technicians performs an environmental assessment The Oak Ridge Institute for Science and Education (ORISE) performs independent, objective environmental assessments to define the extent of radiological contamination at sites scheduled for decontamination and decommissioning (D&D). A fundamental aspect of all D&D projects, these environmental assessments provide guidance to determine the best remediation procedures and are a cost-effective method of

  10. Hillslope stability and land use (1985). Volume II

    SciTech Connect (OSTI)

    Sidle, R.C.; Pearce, A.J.; O'Loughlin, C.L.

    1985-01-01

    This book emphasizes the natural factors affecting slope stability, including soils and geomorphic, hydrologic, vegetative, and seismic factors and provides information on landslide classification, global damage, and analytical methods. The effects of various extensive and intensive land management practices on slope stability are discussed together with methods for prediction, avoidance, and control. Examples of terrain evaluation procedures and land management practices are presented.